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fuchsia / third_party / vulkan-cts / 780edbd7f64c8eb3e6df37610ae6684095810933 / . / external / openglcts / modules / gl / gl4cTextureViewTests.cpp
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/*-------------------------------------------------------------------------
* OpenGL Conformance Test Suite
* -----------------------------
*
* Copyright (c) 2014-2016 The Khronos Group Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/ /*!
* \file
* \brief
*/ /*-------------------------------------------------------------------*/
/**
* \file gl4cTextureViewTests.cpp
* \brief Implements conformance tests for "texture view" functionality.
*/ /*-------------------------------------------------------------------*/
#include "gl4cTextureViewTests.hpp"
#include "deFloat16.h"
#include "deMath.h"
#include "gluContextInfo.hpp"
#include "glwFunctions.hpp"
#include "tcuFloat.hpp"
#include "tcuTestLog.hpp"
#include <algorithm>
/* Type definitions needed to handle GL_R11F_G11F_B10F internal format */
typedef tcu::Float<deUint32, 5, 5, 15, 0> Float10;
typedef tcu::Float<deUint32, 5, 6, 15, 0> Float11;
namespace gl4cts
{
using namespace TextureView;
/** Stores internalformat->view class associations */
const int internalformat_view_compatibility_array[] = {
/* [internalformat] [view class] */
GL_RGBA32F, VIEW_CLASS_128_BITS, GL_RGBA32UI, VIEW_CLASS_128_BITS, GL_RGBA32I, VIEW_CLASS_128_BITS, GL_RGB32F,
VIEW_CLASS_96_BITS, GL_RGB32UI, VIEW_CLASS_96_BITS, GL_RGB32I, VIEW_CLASS_96_BITS, GL_RGBA16F, VIEW_CLASS_64_BITS,
GL_RG32F, VIEW_CLASS_64_BITS, GL_RGBA16UI, VIEW_CLASS_64_BITS, GL_RG32UI, VIEW_CLASS_64_BITS, GL_RGBA16I,
VIEW_CLASS_64_BITS, GL_RG32I, VIEW_CLASS_64_BITS, GL_RGBA16, VIEW_CLASS_64_BITS, GL_RGBA16_SNORM,
VIEW_CLASS_64_BITS, GL_RGB16, VIEW_CLASS_48_BITS, GL_RGB16_SNORM, VIEW_CLASS_48_BITS, GL_RGB16F, VIEW_CLASS_48_BITS,
GL_RGB16UI, VIEW_CLASS_48_BITS, GL_RGB16I, VIEW_CLASS_48_BITS, GL_RG16F, VIEW_CLASS_32_BITS, GL_R11F_G11F_B10F,
VIEW_CLASS_32_BITS, GL_R32F, VIEW_CLASS_32_BITS, GL_RGB10_A2UI, VIEW_CLASS_32_BITS, GL_RGBA8UI, VIEW_CLASS_32_BITS,
GL_RG16UI, VIEW_CLASS_32_BITS, GL_R32UI, VIEW_CLASS_32_BITS, GL_RGBA8I, VIEW_CLASS_32_BITS, GL_RG16I,
VIEW_CLASS_32_BITS, GL_R32I, VIEW_CLASS_32_BITS, GL_RGB10_A2, VIEW_CLASS_32_BITS, GL_RGBA8, VIEW_CLASS_32_BITS,
GL_RG16, VIEW_CLASS_32_BITS, GL_RGBA8_SNORM, VIEW_CLASS_32_BITS, GL_RG16_SNORM, VIEW_CLASS_32_BITS, GL_SRGB8_ALPHA8,
VIEW_CLASS_32_BITS, GL_RGB9_E5, VIEW_CLASS_32_BITS, GL_RGB8, VIEW_CLASS_24_BITS, GL_RGB8_SNORM, VIEW_CLASS_24_BITS,
GL_SRGB8, VIEW_CLASS_24_BITS, GL_RGB8UI, VIEW_CLASS_24_BITS, GL_RGB8I, VIEW_CLASS_24_BITS, GL_R16F,
VIEW_CLASS_16_BITS, GL_RG8UI, VIEW_CLASS_16_BITS, GL_R16UI, VIEW_CLASS_16_BITS, GL_RG8I, VIEW_CLASS_16_BITS,
GL_R16I, VIEW_CLASS_16_BITS, GL_RG8, VIEW_CLASS_16_BITS, GL_R16, VIEW_CLASS_16_BITS, GL_RG8_SNORM,
VIEW_CLASS_16_BITS, GL_R16_SNORM, VIEW_CLASS_16_BITS, GL_R8UI, VIEW_CLASS_8_BITS, GL_R8I, VIEW_CLASS_8_BITS, GL_R8,
VIEW_CLASS_8_BITS, GL_R8_SNORM, VIEW_CLASS_8_BITS,
/* Compressed texture formats. */
GL_COMPRESSED_RED_RGTC1, VIEW_CLASS_RGTC1_RED, GL_COMPRESSED_SIGNED_RED_RGTC1, VIEW_CLASS_RGTC1_RED,
GL_COMPRESSED_RG_RGTC2, VIEW_CLASS_RGTC2_RG, GL_COMPRESSED_SIGNED_RG_RGTC2, VIEW_CLASS_RGTC2_RG,
GL_COMPRESSED_RGBA_BPTC_UNORM, VIEW_CLASS_BPTC_UNORM, GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM, VIEW_CLASS_BPTC_UNORM,
GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT, VIEW_CLASS_BPTC_FLOAT, GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT,
VIEW_CLASS_BPTC_FLOAT
};
const int n_internalformat_view_compatibility_array_entries =
sizeof(internalformat_view_compatibility_array) / sizeof(internalformat_view_compatibility_array[0]);
/** Stores all internalformats valid in OpenGL 4.x. Information whether particular internalformat
* can be considered supported can be retrieved by calling TextureViewTests::isInternalformatSupported()
* function.
*/
const glw::GLenum valid_gl_internalformats[] = {
/* Section 8.5.1 */
GL_RGBA32F, /* >= GL 4.0 */
GL_RGBA32I, /* >= GL 4.0 */
GL_RGBA32UI, /* >= GL 4.0 */
GL_RGBA16, /* >= GL 4.0 */
GL_RGBA16F, /* >= GL 4.0 */
GL_RGBA16I, /* >= GL 4.0 */
GL_RGBA16UI, /* >= GL 4.0 */
GL_RGBA8, /* >= GL 4.0 */
GL_RGBA8I, /* >= GL 4.0 */
GL_RGBA8UI, /* >= GL 4.0 */
GL_SRGB8_ALPHA8, /* >= GL 4.0 */
GL_RGB10_A2, /* >= GL 4.0 */
GL_RGB10_A2UI, /* >= GL 4.0 */
GL_RGB5_A1, /* >= GL 4.0 */
GL_RGBA4, /* >= GL 4.0 */
GL_R11F_G11F_B10F, /* >= GL 4.0 */
GL_RGB565, /* >= GL 4.2 */
GL_RG32F, /* >= GL 4.0 */
GL_RG32I, /* >= GL 4.0 */
GL_RG32UI, /* >= GL 4.0 */
GL_RG16, /* >= GL 4.0 */
GL_RG16F, /* >= GL 4.0 */
GL_RG16I, /* >= GL 4.0 */
GL_RG16UI, /* >= GL 4.0 */
GL_RG8, /* >= GL 4.0 */
GL_RG8I, /* >= GL 4.0 */
GL_RG8UI, /* >= GL 4.0 */
GL_R32F, /* >= GL 4.0 */
GL_R32I, /* >= GL 4.0 */
GL_R32UI, /* >= GL 4.0 */
GL_R16F, /* >= GL 4.0 */
GL_R16I, /* >= GL 4.0 */
GL_R16UI, /* >= GL 4.0 */
GL_R16, /* >= GL 4.0 */
GL_R8, /* >= GL 4.0 */
GL_R8I, /* >= GL 4.0 */
GL_R8UI, /* >= GL 4.0 */
GL_RGBA16_SNORM, /* >= GL 4.0 */
GL_RGBA8_SNORM, /* >= GL 4.0 */
GL_RGB32F, /* >= GL 4.0 */
GL_RGB32I, /* >= GL 4.0 */
GL_RGB32UI, /* >= GL 4.0 */
GL_RGB16_SNORM, /* >= GL 4.0 */
GL_RGB16F, /* >= GL 4.0 */
GL_RGB16I, /* >= GL 4.0 */
GL_RGB16UI, /* >= GL 4.0 */
GL_RGB16, /* >= GL 4.0 */
GL_RGB8_SNORM, /* >= GL 4.0 */
GL_RGB8, /* >= GL 4.0 */
GL_RGB8I, /* >= GL 4.0 */
GL_RGB8UI, /* >= GL 4.0 */
GL_SRGB8, /* >= GL 4.0 */
GL_RGB9_E5, /* >= GL 4.0 */
GL_RG16_SNORM, /* >= GL 4.0 */
GL_RG8_SNORM, /* >= GL 4.0 */
GL_R16_SNORM, /* >= GL 4.0 */
GL_R8_SNORM, /* >= GL 4.0 */
GL_DEPTH_COMPONENT32F, /* >= GL 4.0 */
GL_DEPTH_COMPONENT24, /* >= GL 4.0 */
GL_DEPTH_COMPONENT16, /* >= GL 4.0 */
GL_DEPTH32F_STENCIL8, /* >= GL 4.0 */
GL_DEPTH24_STENCIL8, /* >= GL 4.0 */
/* Table 8.14: generic compressed internalformats have been removed */
GL_COMPRESSED_RED_RGTC1, /* >= GL 4.0 */
GL_COMPRESSED_SIGNED_RED_RGTC1, /* >= GL 4.0 */
GL_COMPRESSED_RG_RGTC2, /* >= GL 4.0 */
GL_COMPRESSED_SIGNED_RG_RGTC2, /* >= GL 4.0 */
GL_COMPRESSED_RGBA_BPTC_UNORM, /* >= GL 4.2 */
GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM, /* >= GL 4.2 */
GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT, /* >= GL 4.2 */
GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT, /* >= GL 4.2 */
GL_COMPRESSED_RGB8_ETC2, /* >= GL 4.3 */
GL_COMPRESSED_SRGB8_ETC2, /* >= GL 4.3 */
GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, /* >= GL 4.3 */
GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, /* >= GL 4.3 */
GL_COMPRESSED_RGBA8_ETC2_EAC, /* >= GL 4.3 */
GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, /* >= GL 4.3 */
GL_COMPRESSED_R11_EAC, /* >= GL 4.3 */
GL_COMPRESSED_SIGNED_R11_EAC, /* >= GL 4.3 */
GL_COMPRESSED_RG11_EAC, /* >= GL 4.3 */
GL_COMPRESSED_SIGNED_RG11_EAC, /* >= GL 4.3 */
};
const int n_valid_gl_internalformats = sizeof(valid_gl_internalformats) / sizeof(valid_gl_internalformats[0]);
/** An array of texture targets that is used by a number of TextureViewUtilities methods. */
static glw::GLenum valid_texture_targets[] = { GL_TEXTURE_1D,
GL_TEXTURE_1D_ARRAY,
GL_TEXTURE_2D,
GL_TEXTURE_2D_ARRAY,
GL_TEXTURE_2D_MULTISAMPLE,
GL_TEXTURE_2D_MULTISAMPLE_ARRAY,
GL_TEXTURE_3D,
GL_TEXTURE_BUFFER,
GL_TEXTURE_CUBE_MAP,
GL_TEXTURE_CUBE_MAP_ARRAY,
GL_TEXTURE_RECTANGLE };
const unsigned int n_valid_texture_targets = sizeof(valid_texture_targets) / sizeof(valid_texture_targets[0]);
/** Retrieves amount of components defined by user-specified internalformat.
*
* This function throws TestError exception if @param internalformat is not recognized.
*
* @param internalformat Internalformat to use for the query.
*
* @return Requested value.
**/
unsigned int TextureViewUtilities::getAmountOfComponentsForInternalformat(const glw::GLenum internalformat)
{
unsigned int result = 0;
switch (internalformat)
{
case GL_COMPRESSED_RGBA_BPTC_UNORM:
case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
case GL_RGB10_A2:
case GL_RGB10_A2UI:
case GL_RGB5_A1:
case GL_RGBA16F:
case GL_RGBA16I:
case GL_RGBA16UI:
case GL_RGBA16:
case GL_RGBA16_SNORM:
case GL_RGBA32F:
case GL_RGBA32I:
case GL_RGBA32UI:
case GL_RGBA4:
case GL_RGBA8I:
case GL_RGBA8UI:
case GL_RGBA8:
case GL_RGBA8_SNORM:
case GL_SRGB8_ALPHA8:
{
result = 4;
break;
}
case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
case GL_R11F_G11F_B10F:
case GL_RGB16_SNORM:
case GL_RGB16F:
case GL_RGB16I:
case GL_RGB16UI:
case GL_RGB16:
case GL_RGB32F:
case GL_RGB32I:
case GL_RGB32UI:
case GL_RGB565:
case GL_RGB8:
case GL_RGB8_SNORM:
case GL_RGB8I:
case GL_RGB8UI:
case GL_RGB9_E5:
case GL_SRGB8:
{
result = 3;
break;
}
case GL_COMPRESSED_RG_RGTC2:
case GL_COMPRESSED_SIGNED_RG_RGTC2:
case GL_RG16:
case GL_RG16F:
case GL_RG16I:
case GL_RG16UI:
case GL_RG16_SNORM:
case GL_RG32F:
case GL_RG32I:
case GL_RG32UI:
case GL_RG8:
case GL_RG8_SNORM:
case GL_RG8I:
case GL_RG8UI:
{
result = 2;
break;
}
case GL_COMPRESSED_RED_RGTC1:
case GL_COMPRESSED_SIGNED_RED_RGTC1:
case GL_DEPTH_COMPONENT16:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH32F_STENCIL8: /* only one piece of information can be retrieved at a time */
case GL_DEPTH24_STENCIL8: /* only one piece of information can be retrieved at a time */
case GL_R16:
case GL_R16_SNORM:
case GL_R16F:
case GL_R16I:
case GL_R16UI:
case GL_R32F:
case GL_R32I:
case GL_R32UI:
case GL_R8_SNORM:
case GL_R8:
case GL_R8I:
case GL_R8UI:
{
result = 1;
break;
}
default:
{
TCU_FAIL("Unrecognized internalformat");
}
} /* switch (interalformat) */
return result;
}
/** Retrieves block size used by user-specified compressed internalformat.
*
* Throws TestError exception if @param internalformat is not recognized.
*
* @param internalformat Compressed internalformat to use for the query.
*
* @return Requested information (in bytes).
**/
unsigned int TextureViewUtilities::getBlockSizeForCompressedInternalformat(const glw::GLenum internalformat)
{
unsigned int result = 0;
switch (internalformat)
{
case GL_COMPRESSED_RED_RGTC1:
case GL_COMPRESSED_SIGNED_RED_RGTC1:
{
result = 8;
break;
}
case GL_COMPRESSED_RG_RGTC2:
case GL_COMPRESSED_SIGNED_RG_RGTC2:
case GL_COMPRESSED_RGBA_BPTC_UNORM:
case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
{
result = 16;
break;
}
default:
{
TCU_FAIL("Unrecognized internalformat");
}
} /* switch (internalformat) */
return result;
}
/** Retrieves amount of bits used for R/G/B/A components by user-specified
* *non-compressed* internalformat.
*
* Throws TestError exception if @param internalformat is not recognized.
*
* @param internalformat Internalformat to use for the query. Must not describe
* compressed internalformat.
* @param out_rgba_size Must be spacious enough to hold 4 ints. Deref will be
* used to store requested information for R/G/B/A channels.
* Must not be NULL.
**/
void TextureViewUtilities::getComponentSizeForInternalformat(const glw::GLenum internalformat,
unsigned int* out_rgba_size)
{
/* Note: Compressed textures are not supported by this function */
/* Reset all the values before we continue. */
memset(out_rgba_size, 0, 4 /* rgba */ * sizeof(unsigned int));
/* Depending on the user-specified internalformat, update relevant arguments */
switch (internalformat)
{
case GL_RGBA32F:
case GL_RGBA32I:
case GL_RGBA32UI:
{
out_rgba_size[0] = 32;
out_rgba_size[1] = 32;
out_rgba_size[2] = 32;
out_rgba_size[3] = 32;
break;
}
case GL_RGBA16F:
case GL_RGBA16I:
case GL_RGBA16UI:
case GL_RGBA16:
case GL_RGBA16_SNORM:
{
out_rgba_size[0] = 16;
out_rgba_size[1] = 16;
out_rgba_size[2] = 16;
out_rgba_size[3] = 16;
break;
}
case GL_RGBA8I:
case GL_RGBA8UI:
case GL_RGBA8:
case GL_RGBA8_SNORM:
case GL_SRGB8_ALPHA8:
{
out_rgba_size[0] = 8;
out_rgba_size[1] = 8;
out_rgba_size[2] = 8;
out_rgba_size[3] = 8;
break;
}
case GL_RGB10_A2:
case GL_RGB10_A2UI:
{
out_rgba_size[0] = 10;
out_rgba_size[1] = 10;
out_rgba_size[2] = 10;
out_rgba_size[3] = 2;
break;
}
case GL_RGB5_A1:
{
out_rgba_size[0] = 5;
out_rgba_size[1] = 5;
out_rgba_size[2] = 5;
out_rgba_size[3] = 1;
break;
}
case GL_RGBA4:
{
out_rgba_size[0] = 4;
out_rgba_size[1] = 4;
out_rgba_size[2] = 4;
out_rgba_size[3] = 4;
break;
}
case GL_RGB9_E5:
{
out_rgba_size[0] = 9;
out_rgba_size[1] = 9;
out_rgba_size[2] = 9;
out_rgba_size[3] = 5;
break;
}
case GL_R11F_G11F_B10F:
{
out_rgba_size[0] = 11;
out_rgba_size[1] = 11;
out_rgba_size[2] = 10;
break;
}
case GL_RGB565:
{
out_rgba_size[0] = 5;
out_rgba_size[1] = 6;
out_rgba_size[2] = 5;
break;
}
case GL_RGB32F:
case GL_RGB32I:
case GL_RGB32UI:
{
out_rgba_size[0] = 32;
out_rgba_size[1] = 32;
out_rgba_size[2] = 32;
break;
}
case GL_RGB16_SNORM:
case GL_RGB16F:
case GL_RGB16I:
case GL_RGB16UI:
case GL_RGB16:
{
out_rgba_size[0] = 16;
out_rgba_size[1] = 16;
out_rgba_size[2] = 16;
break;
}
case GL_RGB8_SNORM:
case GL_RGB8:
case GL_RGB8I:
case GL_RGB8UI:
case GL_SRGB8:
{
out_rgba_size[0] = 8;
out_rgba_size[1] = 8;
out_rgba_size[2] = 8;
break;
}
case GL_RG32F:
case GL_RG32I:
case GL_RG32UI:
{
out_rgba_size[0] = 32;
out_rgba_size[1] = 32;
break;
}
case GL_RG16:
case GL_RG16F:
case GL_RG16I:
case GL_RG16UI:
case GL_RG16_SNORM:
{
out_rgba_size[0] = 16;
out_rgba_size[1] = 16;
break;
}
case GL_RG8:
case GL_RG8I:
case GL_RG8UI:
case GL_RG8_SNORM:
{
out_rgba_size[0] = 8;
out_rgba_size[1] = 8;
break;
}
case GL_R32F:
case GL_R32I:
case GL_R32UI:
{
out_rgba_size[0] = 32;
break;
}
case GL_R16F:
case GL_R16I:
case GL_R16UI:
case GL_R16:
case GL_R16_SNORM:
case GL_DEPTH_COMPONENT16:
{
out_rgba_size[0] = 16;
break;
}
case GL_R8:
case GL_R8I:
case GL_R8UI:
case GL_R8_SNORM:
{
out_rgba_size[0] = 8;
break;
}
case GL_DEPTH_COMPONENT24:
{
out_rgba_size[0] = 24;
break;
}
case GL_DEPTH32F_STENCIL8:
{
out_rgba_size[0] = 32;
out_rgba_size[1] = 8;
break;
}
case GL_DEPTH24_STENCIL8:
{
out_rgba_size[0] = 24;
out_rgba_size[1] = 8;
break;
}
default:
{
TCU_FAIL("Unrecognized internalformat");
}
} /* switch (interalformat) */
}
/** Tells how many bits per components should be used to define input data with
* user-specified type.
*
* Throws TestError exception if @param type is not recognized.
*
* @param type Type to use for the query.
* @param out_rgba_size Deref will be used to store requested information. Must
* not be NULL. Must be capacious enough to hold 4 ints.
*
**/
void TextureViewUtilities::getComponentSizeForType(const glw::GLenum type, unsigned int* out_rgba_size)
{
memset(out_rgba_size, 0, sizeof(unsigned int) * 4 /* rgba */);
switch (type)
{
case GL_BYTE:
case GL_UNSIGNED_BYTE:
{
out_rgba_size[0] = 8;
out_rgba_size[1] = 8;
out_rgba_size[2] = 8;
out_rgba_size[3] = 8;
break;
}
case GL_FLOAT:
case GL_UNSIGNED_INT:
case GL_INT:
{
out_rgba_size[0] = 32;
out_rgba_size[1] = 32;
out_rgba_size[2] = 32;
out_rgba_size[3] = 32;
break;
}
case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
{
out_rgba_size[0] = 8;
out_rgba_size[1] = 24;
out_rgba_size[2] = 32;
out_rgba_size[3] = 0;
break;
}
case GL_HALF_FLOAT:
case GL_UNSIGNED_SHORT:
case GL_SHORT:
{
out_rgba_size[0] = 16;
out_rgba_size[1] = 16;
out_rgba_size[2] = 16;
out_rgba_size[3] = 16;
break;
}
case GL_UNSIGNED_INT_10_10_10_2:
{
out_rgba_size[0] = 10;
out_rgba_size[1] = 10;
out_rgba_size[2] = 10;
out_rgba_size[3] = 2;
break;
}
case GL_UNSIGNED_INT_10F_11F_11F_REV:
{
out_rgba_size[0] = 11;
out_rgba_size[1] = 11;
out_rgba_size[2] = 10;
break;
}
case GL_UNSIGNED_INT_24_8:
{
out_rgba_size[0] = 24;
out_rgba_size[1] = 8;
out_rgba_size[2] = 0;
out_rgba_size[3] = 0;
break;
}
case GL_UNSIGNED_INT_2_10_10_10_REV:
{
out_rgba_size[0] = 10;
out_rgba_size[1] = 10;
out_rgba_size[2] = 10;
out_rgba_size[3] = 2;
break;
}
case GL_UNSIGNED_INT_5_9_9_9_REV:
{
out_rgba_size[0] = 9;
out_rgba_size[1] = 9;
out_rgba_size[2] = 9;
out_rgba_size[3] = 5;
break;
}
default:
{
TCU_FAIL("Unrecognized type");
}
} /* switch (type) */
}
/** Returns strings naming GL error codes.
*
* @param error_code GL error code.
*
* @return Requested strings or "[?]" if @param error_code was not
* recognized.
**/
const char* TextureViewUtilities::getErrorCodeString(const glw::GLint error_code)
{
switch (error_code)
{
case GL_INVALID_ENUM:
return "GL_INVALID_ENUM";
case GL_INVALID_FRAMEBUFFER_OPERATION:
return "GL_INVALID_FRAMEBUFFER_OPERATION";
case GL_INVALID_OPERATION:
return "GL_INVALID_OPERATION";
case GL_INVALID_VALUE:
return "GL_INVALID_VALUE";
case GL_NO_ERROR:
return "GL_NO_ERROR";
case GL_OUT_OF_MEMORY:
return "GL_OUT_OF_MEMORY";
case GL_STACK_OVERFLOW:
return "GL_STACK_OVERFLOW";
case GL_STACK_UNDERFLOW:
return "GL_STACK_UNDERFLOW";
default:
return "[?]";
}
}
/** Tells what the format of user-specified internalformat is (eg. whether it's a FP,
* unorm, snorm, etc.). Note: this is NOT the GL-speak format.
*
* Supports both compressed and non-compressed internalformats.
* Throws TestError exception if @param internalformat is not recognized.
*
* @param internalformat Internalformat to use for the query.
*
* @return Requested information.
*
**/
_format TextureViewUtilities::getFormatOfInternalformat(const glw::GLenum internalformat)
{
_format result = FORMAT_UNDEFINED;
switch (internalformat)
{
case GL_COMPRESSED_RG_RGTC2:
case GL_COMPRESSED_RGBA_BPTC_UNORM:
case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
case GL_COMPRESSED_RED_RGTC1:
case GL_RGBA16:
case GL_RGBA4:
case GL_RGBA8:
case GL_RGB10_A2:
case GL_RGB16:
case GL_RGB5_A1:
case GL_RGB565:
case GL_RGB8:
case GL_RG16:
case GL_RG8:
case GL_R16:
case GL_R8:
case GL_SRGB8:
case GL_SRGB8_ALPHA8:
{
result = FORMAT_UNORM;
break;
}
case GL_COMPRESSED_SIGNED_RED_RGTC1:
case GL_COMPRESSED_SIGNED_RG_RGTC2:
case GL_RGBA16_SNORM:
case GL_RGBA8_SNORM:
case GL_RGB16_SNORM:
case GL_RGB8_SNORM:
case GL_RG16_SNORM:
case GL_RG8_SNORM:
case GL_R16_SNORM:
case GL_R8_SNORM:
{
result = FORMAT_SNORM;
break;
}
case GL_RGB10_A2UI:
case GL_RGBA16UI:
case GL_RGBA32UI:
case GL_RGBA8UI:
case GL_RGB16UI:
case GL_RGB32UI:
case GL_RGB8UI:
case GL_RG16UI:
case GL_RG32UI:
case GL_RG8UI:
case GL_R16UI:
case GL_R32UI:
case GL_R8UI:
{
result = FORMAT_UNSIGNED_INTEGER;
break;
}
case GL_RGB9_E5:
{
result = FORMAT_RGBE;
break;
}
case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
case GL_DEPTH_COMPONENT16:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT32F:
case GL_R11F_G11F_B10F:
case GL_RGBA16F:
case GL_RGBA32F:
case GL_RGB16F:
case GL_RGB32F:
case GL_RG16F:
case GL_RG32F:
case GL_R16F:
case GL_R32F:
{
result = FORMAT_FLOAT;
break;
}
case GL_RGBA16I:
case GL_RGBA32I:
case GL_RGBA8I:
case GL_RGB16I:
case GL_RGB32I:
case GL_RGB8I:
case GL_RG16I:
case GL_RG32I:
case GL_RG8I:
case GL_R16I:
case GL_R32I:
case GL_R8I:
{
result = FORMAT_SIGNED_INTEGER;
break;
}
default:
{
TCU_FAIL("Unrecognized internalformat");
}
} /* switch (interalformat) */
return result;
}
/** Returns GL format that is compatible with user-specified internalformat.
*
* Throws TestError exception if @param internalformat is not recognized.
*
* @param internalformat Internalformat to use for the query.
*
* @return Requested information.
**/
glw::GLenum TextureViewUtilities::getGLFormatOfInternalformat(const glw::GLenum internalformat)
{
glw::GLenum result = FORMAT_UNDEFINED;
switch (internalformat)
{
case GL_COMPRESSED_RGBA_BPTC_UNORM:
case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
case GL_COMPRESSED_RGBA8_ETC2_EAC:
case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
{
result = GL_COMPRESSED_RGBA;
break;
}
case GL_RGB10_A2:
case GL_RGB5_A1:
case GL_RGBA16:
case GL_RGBA16F:
case GL_RGBA16_SNORM:
case GL_RGBA32F:
case GL_RGBA4:
case GL_RGBA8:
case GL_RGBA8_SNORM:
case GL_SRGB8_ALPHA8:
{
result = GL_RGBA;
break;
}
case GL_RGB10_A2UI:
case GL_RGBA16I:
case GL_RGBA16UI:
case GL_RGBA32I:
case GL_RGBA32UI:
case GL_RGBA8I:
case GL_RGBA8UI:
{
result = GL_RGBA_INTEGER;
break;
}
case GL_COMPRESSED_RGB8_ETC2:
case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
case GL_COMPRESSED_SRGB8_ETC2:
{
result = GL_COMPRESSED_RGB;
break;
}
case GL_R11F_G11F_B10F:
case GL_RGB16:
case GL_RGB16_SNORM:
case GL_RGB16F:
case GL_RGB32F:
case GL_RGB565:
case GL_RGB8:
case GL_RGB8_SNORM:
case GL_RGB9_E5:
case GL_SRGB8:
{
result = GL_RGB;
break;
}
case GL_RGB16I:
case GL_RGB16UI:
case GL_RGB32I:
case GL_RGB32UI:
case GL_RGB8I:
case GL_RGB8UI:
{
result = GL_RGB_INTEGER;
break;
}
case GL_COMPRESSED_RG_RGTC2:
case GL_COMPRESSED_RG11_EAC:
case GL_COMPRESSED_SIGNED_RG_RGTC2:
case GL_COMPRESSED_SIGNED_RG11_EAC:
{
result = GL_COMPRESSED_RG;
break;
}
case GL_RG16:
case GL_RG16_SNORM:
case GL_RG16F:
case GL_RG32F:
case GL_RG8:
case GL_RG8_SNORM:
{
result = GL_RG;
break;
}
case GL_RG16I:
case GL_RG16UI:
case GL_RG32I:
case GL_RG32UI:
case GL_RG8I:
case GL_RG8UI:
{
result = GL_RG_INTEGER;
break;
}
case GL_COMPRESSED_R11_EAC:
case GL_COMPRESSED_RED_RGTC1:
case GL_COMPRESSED_SIGNED_R11_EAC:
case GL_COMPRESSED_SIGNED_RED_RGTC1:
{
result = GL_COMPRESSED_RED;
break;
}
case GL_R16:
case GL_R16F:
case GL_R16_SNORM:
case GL_R32F:
case GL_R8:
case GL_R8_SNORM:
{
result = GL_RED;
break;
}
case GL_R16I:
case GL_R16UI:
case GL_R32I:
case GL_R32UI:
case GL_R8I:
case GL_R8UI:
{
result = GL_RED_INTEGER;
break;
}
case GL_DEPTH_COMPONENT16:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT32F:
{
result = GL_DEPTH_COMPONENT;
break;
}
case GL_DEPTH24_STENCIL8:
case GL_DEPTH32F_STENCIL8:
{
result = GL_DEPTH_STENCIL;
break;
}
default:
{
TCU_FAIL("Unrecognized internalformat");
}
} /* switch (internalformat) */
return result;
}
/** Returns a string that corresponds to a GLSL type that can act as input to user-specified
* sampler type, and which can hold user-specified amount of components.
*
* Throws TestError exception if either of the arguments was found invalid.
*
* @param sampler_type Type of the sampler to use for the query.
* @param n_components Amount of components to use for the query.
*
* @return Requested string.
**/
const char* TextureViewUtilities::getGLSLDataTypeForSamplerType(const _sampler_type sampler_type,
const unsigned int n_components)
{
const char* result = "";
switch (sampler_type)
{
case SAMPLER_TYPE_FLOAT:
{
switch (n_components)
{
case 1:
result = "float";
break;
case 2:
result = "vec2";
break;
case 3:
result = "vec3";
break;
case 4:
result = "vec4";
break;
default:
{
TCU_FAIL("Unsupported number of components");
}
} /* switch (n_components) */
break;
}
case SAMPLER_TYPE_SIGNED_INTEGER:
{
switch (n_components)
{
case 1:
result = "int";
break;
case 2:
result = "ivec2";
break;
case 3:
result = "ivec3";
break;
case 4:
result = "ivec4";
break;
default:
{
TCU_FAIL("Unsupported number of components");
}
} /* switch (n_components) */
break;
}
case SAMPLER_TYPE_UNSIGNED_INTEGER:
{
switch (n_components)
{
case 1:
result = "uint";
break;
case 2:
result = "uvec2";
break;
case 3:
result = "uvec3";
break;
case 4:
result = "uvec4";
break;
default:
{
TCU_FAIL("Unsupported number of components");
}
} /* switch (n_components) */
break;
}
default:
{
TCU_FAIL("Unrecognized sampler type");
}
} /* switch (sampler_type) */
return result;
}
/** Retrieves a string defining a sampler type in GLSL which corresponds to user-specified internal
* sampler type.
*
* Throws TestError exception if @param sampler_type was not recognized.
*
* @param sampler_type Internal sampler type to use for the query.
*
* @return Requested string.
**/
const char* TextureViewUtilities::getGLSLTypeForSamplerType(const _sampler_type sampler_type)
{
const char* result = "";
switch (sampler_type)
{
case SAMPLER_TYPE_FLOAT:
result = "sampler2D";
break;
case SAMPLER_TYPE_SIGNED_INTEGER:
result = "isampler2D";
break;
case SAMPLER_TYPE_UNSIGNED_INTEGER:
result = "usampler2D";
break;
default:
{
TCU_FAIL("Unrecognized sampler type");
}
} /* switch (sampler_type) */
return result;
}
/** Returns a vector of texture+view internalformat combinations that are known to be incompatible.
*
* @return Requested information.
**/
TextureViewUtilities::_incompatible_internalformat_pairs TextureViewUtilities::
getIllegalTextureAndViewInternalformatCombinations()
{
TextureViewUtilities::_incompatible_internalformat_pairs result;
/* Iterate in two loops over the set of supported internalformats */
for (int n_texture_internalformat = 0;
n_texture_internalformat <
(n_internalformat_view_compatibility_array_entries / 2); /* the array stores two values per entry */
++n_texture_internalformat)
{
glw::GLenum src_internalformat = internalformat_view_compatibility_array[(n_texture_internalformat * 2) + 0];
_view_class src_view_class =
(_view_class)internalformat_view_compatibility_array[(n_texture_internalformat * 2) + 1];
for (int n_view_internalformat = n_texture_internalformat + 1;
n_view_internalformat < (n_internalformat_view_compatibility_array_entries >> 1); ++n_view_internalformat)
{
glw::GLenum view_internalformat = internalformat_view_compatibility_array[(n_view_internalformat * 2) + 0];
_view_class view_view_class =
(_view_class)internalformat_view_compatibility_array[(n_view_internalformat * 2) + 1];
if (src_view_class != view_view_class)
{
result.push_back(_internalformat_pair(src_internalformat, view_internalformat));
}
} /* for (all internalformats we can use for the texture view) */
} /* for (all internalformats we can use for the parent texture) */
return result;
}
/** Returns a vector of texture+view target texture combinations that are known to be incompatible.
*
* @return Requested information.
**/
TextureViewUtilities::_incompatible_texture_target_pairs TextureViewUtilities::
getIllegalTextureAndViewTargetCombinations()
{
_incompatible_texture_target_pairs result;
/* Iterate through all combinations of texture targets and store those that are
* reported as invalid
*/
for (unsigned int n_parent_texture_target = 0; n_parent_texture_target < n_valid_texture_targets;
++n_parent_texture_target)
{
glw::GLenum parent_texture_target = valid_texture_targets[n_parent_texture_target];
for (unsigned int n_view_texture_target = 0; n_view_texture_target < n_valid_texture_targets;
++n_view_texture_target)
{
glw::GLenum view_texture_target = valid_texture_targets[n_view_texture_target];
if (!isLegalTextureTargetForTextureView(parent_texture_target, view_texture_target))
{
result.push_back(_internalformat_pair(parent_texture_target, view_texture_target));
}
} /* for (all texture targets considered for views) */
} /* for (all texture targets considered for parent texture) */
return result;
}
/** Returns internalformats associated with user-specified view class.
*
* @param view_class View class to use for the query.
*
* @return Requested information.
**/
TextureViewUtilities::_internalformats TextureViewUtilities::getInternalformatsFromViewClass(_view_class view_class)
{
_internalformats result;
/* Iterate over the data array and push those internalformats that match the requested view class */
const unsigned int n_array_elements = n_internalformat_view_compatibility_array_entries;
for (unsigned int n_array_pair = 0; n_array_pair < (n_array_elements >> 1); ++n_array_pair)
{
const glw::GLenum internalformat = internalformat_view_compatibility_array[n_array_pair * 2 + 0];
const _view_class current_view_class =
(_view_class)internalformat_view_compatibility_array[n_array_pair * 2 + 1];
if (current_view_class == view_class)
{
result.push_back(internalformat);
}
} /* for (all pairs in the data array) */
return result;
}
/** Returns a string defining user-specified internalformat.
*
* Throws a TestError exception if @param internalformat was not recognized.
*
* @param internalformat Internalformat to use for the query.
*
* @return Requested string.
**/
const char* TextureViewUtilities::getInternalformatString(const glw::GLenum internalformat)
{
const char* result = "[?]";
switch (internalformat)
{
case GL_RGBA32F:
result = "GL_RGBA32F";
break;
case GL_RGBA32I:
result = "GL_RGBA32I";
break;
case GL_RGBA32UI:
result = "GL_RGBA32UI";
break;
case GL_RGBA16:
result = "GL_RGBA16";
break;
case GL_RGBA16F:
result = "GL_RGBA16F";
break;
case GL_RGBA16I:
result = "GL_RGBA16I";
break;
case GL_RGBA16UI:
result = "GL_RGBA16UI";
break;
case GL_RGBA8:
result = "GL_RGBA8";
break;
case GL_RGBA8I:
result = "GL_RGBA8I";
break;
case GL_RGBA8UI:
result = "GL_RGBA8UI";
break;
case GL_SRGB8_ALPHA8:
result = "GL_SRGB8_ALPHA8";
break;
case GL_RGB10_A2:
result = "GL_RGB10_A2";
break;
case GL_RGB10_A2UI:
result = "GL_RGB10_A2UI";
break;
case GL_RGB5_A1:
result = "GL_RGB5_A1";
break;
case GL_RGBA4:
result = "GL_RGBA4";
break;
case GL_R11F_G11F_B10F:
result = "GL_R11F_G11F_B10F";
break;
case GL_RGB565:
result = "GL_RGB565";
break;
case GL_RG32F:
result = "GL_RG32F";
break;
case GL_RG32I:
result = "GL_RG32I";
break;
case GL_RG32UI:
result = "GL_RG32UI";
break;
case GL_RG16:
result = "GL_RG16";
break;
case GL_RG16F:
result = "GL_RG16F";
break;
case GL_RG16I:
result = "GL_RG16I";
break;
case GL_RG16UI:
result = "GL_RG16UI";
break;
case GL_RG8:
result = "GL_RG8";
break;
case GL_RG8I:
result = "GL_RG8I";
break;
case GL_RG8UI:
result = "GL_RG8UI";
break;
case GL_R32F:
result = "GL_R32F";
break;
case GL_R32I:
result = "GL_R32I";
break;
case GL_R32UI:
result = "GL_R32UI";
break;
case GL_R16F:
result = "GL_R16F";
break;
case GL_R16I:
result = "GL_R16I";
break;
case GL_R16UI:
result = "GL_R16UI";
break;
case GL_R16:
result = "GL_R16";
break;
case GL_R8:
result = "GL_R8";
break;
case GL_R8I:
result = "GL_R8I";
break;
case GL_R8UI:
result = "GL_R8UI";
break;
case GL_RGBA16_SNORM:
result = "GL_RGBA16_SNORM";
break;
case GL_RGBA8_SNORM:
result = "GL_RGBA8_SNORM";
break;
case GL_RGB32F:
result = "GL_RGB32F";
break;
case GL_RGB32I:
result = "GL_RGB32I";
break;
case GL_RGB32UI:
result = "GL_RGB32UI";
break;
case GL_RGB16_SNORM:
result = "GL_RGB16_SNORM";
break;
case GL_RGB16F:
result = "GL_RGB16F";
break;
case GL_RGB16I:
result = "GL_RGB16I";
break;
case GL_RGB16UI:
result = "GL_RGB16UI";
break;
case GL_RGB16:
result = "GL_RGB16";
break;
case GL_RGB8_SNORM:
result = "GL_RGB8_SNORM";
break;
case GL_RGB8:
result = "GL_RGB8";
break;
case GL_RGB8I:
result = "GL_RGB8I";
break;
case GL_RGB8UI:
result = "GL_RGB8UI";
break;
case GL_SRGB8:
result = "GL_SRGB8";
break;
case GL_RGB9_E5:
result = "GL_RGB9_E5";
break;
case GL_RG16_SNORM:
result = "GL_RG16_SNORM";
break;
case GL_RG8_SNORM:
result = "GL_RG8_SNORM";
break;
case GL_R16_SNORM:
result = "GL_R16_SNORM";
break;
case GL_R8_SNORM:
result = "GL_R8_SNORM";
break;
case GL_DEPTH_COMPONENT32F:
result = "GL_DEPTH_COMPONENT32F";
break;
case GL_DEPTH_COMPONENT24:
result = "GL_DEPTH_COMPONENT24";
break;
case GL_DEPTH_COMPONENT16:
result = "GL_DEPTH_COMPONENT16";
break;
case GL_DEPTH32F_STENCIL8:
result = "GL_DEPTH32F_STENCIL8";
break;
case GL_DEPTH24_STENCIL8:
result = "GL_DEPTH24_STENCIL8";
break;
case GL_COMPRESSED_RED_RGTC1:
result = "GL_COMPRESSED_RED_RGTC1";
break;
case GL_COMPRESSED_SIGNED_RED_RGTC1:
result = "GL_COMPRESSED_SIGNED_RED_RGTC1";
break;
case GL_COMPRESSED_RG_RGTC2:
result = "GL_COMPRESSED_RG_RGTC2";
break;
case GL_COMPRESSED_SIGNED_RG_RGTC2:
result = "GL_COMPRESSED_SIGNED_RG_RGTC2";
break;
case GL_COMPRESSED_RGBA_BPTC_UNORM:
result = "GL_COMPRESSED_RGBA_BPTC_UNORM";
break;
case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
result = "GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM";
break;
case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
result = "GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT";
break;
case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
result = "GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT";
break;
case GL_COMPRESSED_RGB8_ETC2:
result = "GL_COMPRESSED_RGB8_ETC2";
break;
case GL_COMPRESSED_SRGB8_ETC2:
result = "GL_COMPRESSED_SRGB8_ETC2";
break;
case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
result = "GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2";
break;
case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
result = "GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2";
break;
case GL_COMPRESSED_RGBA8_ETC2_EAC:
result = "GL_COMPRESSED_RGBA8_ETC2_EAC";
break;
case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
result = "GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC";
break;
case GL_COMPRESSED_R11_EAC:
result = "GL_COMPRESSED_R11_EAC";
break;
case GL_COMPRESSED_SIGNED_R11_EAC:
result = "GL_COMPRESSED_SIGNED_R11_EAC";
break;
case GL_COMPRESSED_RG11_EAC:
result = "GL_COMPRESSED_RG11_EAC";
break;
case GL_COMPRESSED_SIGNED_RG11_EAC:
result = "GL_COMPRESSED_SIGNED_RG11_EAC";
break;
default:
TCU_FAIL("Unrecognized internalformat");
}
return result;
}
/** Returns all texture+view internalformat pairs that are valid in light of GL_ARB_texture_view specification.
*
* @return As described.
**/
TextureViewUtilities::_compatible_internalformat_pairs TextureViewUtilities::
getLegalTextureAndViewInternalformatCombinations()
{
_compatible_internalformat_pairs result;
/* Iterate over all view classes */
for (int current_view_class_it = static_cast<int>(VIEW_CLASS_FIRST);
current_view_class_it != static_cast<int>(VIEW_CLASS_COUNT); current_view_class_it++)
{
_view_class current_view_class = static_cast<_view_class>(current_view_class_it);
_internalformats view_class_internalformats = getInternalformatsFromViewClass(current_view_class);
/* Store all combinations in the result vector */
for (_internalformats_const_iterator left_iterator = view_class_internalformats.begin();
left_iterator != view_class_internalformats.end(); left_iterator++)
{
for (_internalformats_const_iterator right_iterator = view_class_internalformats.begin();
right_iterator != view_class_internalformats.end(); ++right_iterator)
{
result.push_back(_internalformat_pair(*left_iterator, *right_iterator));
} /* for (all internalformats to be used as right-side values) */
} /* for (all internalformats to be used as left-side values) */
} /* for (all view classes) */
return result;
}
/** Returns all valid texture+view texture targets pairs.
*
* @return As per description.
**/
TextureViewUtilities::_compatible_texture_target_pairs TextureViewUtilities::getLegalTextureAndViewTargetCombinations()
{
_compatible_texture_target_pairs result;
/* Iterate over all texture targets valid for a glTextureView() call. Consider each one of them as
* original texture target.
*/
for (unsigned int n_original_texture_target = 0; n_original_texture_target < n_valid_texture_targets;
++n_original_texture_target)
{
const glw::GLenum original_texture_target = valid_texture_targets[n_original_texture_target];
/* Iterate again, but this time consider each texture target as a valid new target */
for (unsigned int n_compatible_texture_target = 0; n_compatible_texture_target < n_valid_texture_targets;
++n_compatible_texture_target)
{
const glw::GLenum view_texture_target = valid_texture_targets[n_compatible_texture_target];
if (TextureViewUtilities::isLegalTextureTargetForTextureView(original_texture_target, view_texture_target))
{
result.push_back(_texture_target_pair(original_texture_target, view_texture_target));
}
} /* for (all texture targets that are potentially compatible) */
} /* for (all original texture targets) */
return result;
}
/** Returns major & minor version for user-specified CTS rendering context type.
*
* @param context_type CTS rendering context type.
* @param out_major_version Deref will be used to store major version. Must not be NULL.
* @param out_minor_version Deref will be used to store minor version. Must not be NULL.
*
**/
void TextureViewUtilities::getMajorMinorVersionFromContextVersion(const glu::ContextType& context_type,
glw::GLint* out_major_version,
glw::GLint* out_minor_version)
{
if (context_type.getAPI() == glu::ApiType::core(4, 0))
{
*out_major_version = 4;
*out_minor_version = 0;
}
else if (context_type.getAPI() == glu::ApiType::core(4, 1))
{
*out_major_version = 4;
*out_minor_version = 1;
}
else if (context_type.getAPI() == glu::ApiType::core(4, 2))
{
*out_major_version = 4;
*out_minor_version = 2;
}
else if (context_type.getAPI() == glu::ApiType::core(4, 3))
{
*out_major_version = 4;
*out_minor_version = 3;
}
else if (context_type.getAPI() == glu::ApiType::core(4, 4))
{
*out_major_version = 4;
*out_minor_version = 4;
}
else if (context_type.getAPI() == glu::ApiType::core(4, 5))
{
*out_major_version = 4;
*out_minor_version = 5;
}
else if (context_type.getAPI() == glu::ApiType::core(4, 6))
{
*out_major_version = 4;
*out_minor_version = 6;
}
else
{
TCU_FAIL("Unrecognized rendering context version");
}
}
/** Tells which sampler can be used to sample a texture defined with user-specified
* internalformat.
*
* Supports both compressed and non-compressed internalformats.
* Throws TestError exception if @param internalformat was not recognized.
*
* @param internalformat Internalformat to use for the query.
*
* @return Requested information.
**/
_sampler_type TextureViewUtilities::getSamplerTypeForInternalformat(const glw::GLenum internalformat)
{
_sampler_type result = SAMPLER_TYPE_UNDEFINED;
/* Compressed internalformats not supported at the moment */
switch (internalformat)
{
case GL_COMPRESSED_RED_RGTC1:
case GL_COMPRESSED_SIGNED_RED_RGTC1:
case GL_COMPRESSED_RG_RGTC2:
case GL_COMPRESSED_SIGNED_RG_RGTC2:
case GL_COMPRESSED_RGBA_BPTC_UNORM:
case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
case GL_DEPTH_COMPONENT16:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT32F:
case GL_RGBA16:
case GL_RGBA16_SNORM:
case GL_RGBA16F:
case GL_RGBA32F:
case GL_RGBA4:
case GL_RGBA8:
case GL_RGBA8_SNORM:
case GL_RGB10_A2:
case GL_RGB16:
case GL_RGB16_SNORM:
case GL_RGB16F:
case GL_RGB32F:
case GL_RGB5_A1:
case GL_RGB565:
case GL_RGB8:
case GL_RGB8_SNORM:
case GL_RGB9_E5:
case GL_RG16:
case GL_RG16_SNORM:
case GL_RG16F:
case GL_RG32F:
case GL_RG8:
case GL_RG8_SNORM:
case GL_R11F_G11F_B10F:
case GL_R16:
case GL_R16F:
case GL_R16_SNORM:
case GL_R32F:
case GL_R8:
case GL_R8_SNORM:
case GL_SRGB8_ALPHA8:
case GL_SRGB8:
{
result = SAMPLER_TYPE_FLOAT;
break;
}
case GL_RGB10_A2UI:
case GL_RGBA32UI:
case GL_RGBA16UI:
case GL_RGBA8UI:
case GL_RGB16UI:
case GL_RGB32UI:
case GL_RGB8UI:
case GL_RG16UI:
case GL_RG32UI:
case GL_RG8UI:
case GL_R16UI:
case GL_R32UI:
case GL_R8UI:
{
result = SAMPLER_TYPE_UNSIGNED_INTEGER;
break;
}
case GL_RGBA16I:
case GL_RGBA32I:
case GL_RGBA8I:
case GL_RGB16I:
case GL_RGB32I:
case GL_RGB8I:
case GL_RG16I:
case GL_RG32I:
case GL_RG8I:
case GL_R16I:
case GL_R32I:
case GL_R8I:
{
result = SAMPLER_TYPE_SIGNED_INTEGER;
break;
}
default:
{
TCU_FAIL("Unrecognized internalformat");
}
} /* switch (interalformat) */
return result;
}
/** Tells how many bytes are required to define a texture mip-map using
* user-specified internalformat and type, assuming user-defined mip-map
* resolution. Compressed internalformats are NOT supported.
*
* Throws TestError exception if @param internalformat or @param type are
* found invalid.
*
* @param internalformat Internalformat to use for the query.
* @param type Type to use for the query.
* @param width Mip-map width to use for the query.
* @param height Mip-map height to use for the query.
*
* @return Requested information.
**/
unsigned int TextureViewUtilities::getTextureDataSize(const glw::GLenum internalformat, const glw::GLenum type,
const unsigned int width, const unsigned int height)
{
unsigned int internalformat_rgba_size[4] = { 0 };
unsigned int type_rgba_size[4] = { 0 };
unsigned int texel_size = 0;
TextureViewUtilities::getComponentSizeForInternalformat(internalformat, internalformat_rgba_size);
TextureViewUtilities::getComponentSizeForType(type, type_rgba_size);
if (internalformat_rgba_size[0] == 0)
{
type_rgba_size[0] = 0;
}
if (internalformat_rgba_size[1] == 0)
{
type_rgba_size[1] = 0;
}
if (internalformat_rgba_size[2] == 0)
{
type_rgba_size[2] = 0;
}
if (internalformat_rgba_size[3] == 0)
{
type_rgba_size[3] = 0;
}
texel_size = type_rgba_size[0] + type_rgba_size[1] + type_rgba_size[2] + type_rgba_size[3];
/* Current implementation assumes we do not need to use bit resolution when
* preparing texel data. Make extra sure we're not wrong. */
DE_ASSERT((texel_size % 8) == 0);
texel_size /= 8; /* bits per byte */
return texel_size * width * height;
}
/** Returns a string corresponding to a GL enum describing a texture target.
*
* @return As per description or "[?]" if the enum was not recognized.
**/
const char* TextureViewUtilities::getTextureTargetString(const glw::GLenum texture_target)
{
const char* result = "[?]";
switch (texture_target)
{
case GL_TEXTURE_1D:
result = "GL_TEXTURE_1D";
break;
case GL_TEXTURE_1D_ARRAY:
result = "GL_TEXTURE_1D_ARRAY";
break;
case GL_TEXTURE_2D:
result = "GL_TEXTURE_2D";
break;
case GL_TEXTURE_2D_ARRAY:
result = "GL_TEXTURE_2D_ARRAY";
break;
case GL_TEXTURE_2D_MULTISAMPLE:
result = "GL_TEXTURE_2D_MULTISAMPLE";
break;
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
result = "GL_TEXTURE_2D_MULTISAMPLE_ARRAY";
break;
case GL_TEXTURE_3D:
result = "GL_TEXTURE_3D";
break;
case GL_TEXTURE_BUFFER:
result = "GL_TEXTURE_BUFFER";
break;
case GL_TEXTURE_CUBE_MAP:
result = "GL_TEXTURE_CUBE_MAP";
break;
case GL_TEXTURE_CUBE_MAP_ARRAY:
result = "GL_TEXTURE_CUBE_MAP_ARRAY";
break;
case GL_TEXTURE_RECTANGLE:
result = "GL_TEXTURE_RECTANGLE";
break;
}
return result;
}
/** Returns GL type that can be used to define a texture mip-map defined
* with an internalformat of @param internalformat.
*
* Throws TestError exception if @param internalformat was found to be invalid.
*
* @param internalformat Internalformat to use for the query.
*
* @return Requested information.
**/
glw::GLenum TextureViewUtilities::getTypeCompatibleWithInternalformat(const glw::GLenum internalformat)
{
glw::GLenum result = GL_NONE;
/* Compressed internalformats not supported at the moment */
switch (internalformat)
{
case GL_RGBA8_SNORM:
case GL_RGB8_SNORM:
case GL_RG8_SNORM:
case GL_R8_SNORM:
case GL_RGBA8I:
case GL_RGB8I:
case GL_RG8I:
case GL_R8I:
{
result = GL_BYTE;
break;
}
case GL_DEPTH24_STENCIL8:
{
result = GL_UNSIGNED_INT_24_8;
break;
}
case GL_DEPTH32F_STENCIL8:
{
result = GL_FLOAT_32_UNSIGNED_INT_24_8_REV;
break;
}
case GL_RGBA16F:
case GL_RGB16F:
case GL_RG16F:
case GL_R16F:
{
result = GL_HALF_FLOAT;
break;
}
case GL_DEPTH_COMPONENT32F:
case GL_RGBA32F:
case GL_RGB32F:
case GL_RG32F:
case GL_R11F_G11F_B10F:
case GL_R32F:
{
result = GL_FLOAT;
break;
}
case GL_RGBA16_SNORM:
case GL_RGB16_SNORM:
case GL_RG16_SNORM:
case GL_R16_SNORM:
{
result = GL_SHORT;
break;
}
case GL_RGBA4:
case GL_RGBA8:
case GL_RGB10_A2:
case GL_RGB5_A1:
case GL_RGB565:
case GL_RGB8:
case GL_RGB9_E5:
case GL_RG8:
case GL_R8:
case GL_SRGB8_ALPHA8:
case GL_SRGB8:
case GL_RGBA8UI:
case GL_RGB8UI:
case GL_RG8UI:
case GL_R8UI:
{
result = GL_UNSIGNED_BYTE;
break;
}
case GL_R16I:
case GL_RGBA16I:
case GL_RGB16I:
case GL_RG16I:
{
result = GL_SHORT;
break;
}
case GL_DEPTH_COMPONENT16:
case GL_RGBA16:
case GL_RGB16:
case GL_RG16:
case GL_R16:
case GL_RGBA16UI:
case GL_RGB16UI:
case GL_RG16UI:
case GL_R16UI:
{
result = GL_UNSIGNED_SHORT;
break;
}
case GL_RGBA32I:
case GL_RGB32I:
case GL_RG32I:
case GL_R32I:
{
result = GL_INT;
break;
}
case GL_DEPTH_COMPONENT24:
case GL_RGBA32UI:
case GL_RGB32UI:
case GL_RG32UI:
case GL_R32UI:
{
result = GL_UNSIGNED_INT;
break;
}
case GL_RGB10_A2UI:
{
result = GL_UNSIGNED_INT_2_10_10_10_REV;
break;
}
default:
{
TCU_FAIL("Unrecognized internalformat");
}
} /* switch (interalformat) */
return result;
}
/** Tells what view class is the user-specified internalformat associated with.
*
* Implements Table 8.21 from OpenGL Specification 4.3
*
* @param internalformat Internalformat to use for the query.
*
* @return Requested information or VIEW_CLASS_UNDEFINED if @param internalformat
* has not been recognized.
**/
_view_class TextureViewUtilities::getViewClassForInternalformat(const glw::GLenum internalformat)
{
_view_class result = VIEW_CLASS_UNDEFINED;
/* Note that n_internalformat_view_compatibility_array_entries needs to be divided by 2
* because the value refers to a total number of entries in the array, not to the number
* of pairs that can be read.
*/
for (int n_entry = 0; n_entry < (n_internalformat_view_compatibility_array_entries >> 1); n_entry++)
{
glw::GLenum array_internalformat = internalformat_view_compatibility_array[(n_entry * 2) + 0];
_view_class view_class = (_view_class)internalformat_view_compatibility_array[(n_entry * 2) + 1];
if (array_internalformat == internalformat)
{
result = view_class;
break;
}
} /* for (all pairs in data array) */
return result;
}
/** Initializes texture storage for either an immutable or mutable texture object,
* depending on configuration of the test run the storage is to be initialized for.
*
* @param gl GL entry-points to use for storage initialization.
* @param init_mutable_to true if a mutable texture storage should be initialized,
* false to initialize immutable texture storage.
* @param texture_target Texture target to be used.
* @param texture_depth Depth to be used for texture storage. Only used
* for texture targets that use the depth information.
* @param texture_height Height to be used for texture storage. Only used
* for texture targets that use the height information.
* @param texture_width Width to be used for texture storage.
* @param texture_internalformat Internalformat to be used for texture storage.
* @param texture_format Format to be used for texture storage.
* @param texture_type Type to be used for texture storage.
* @param n_levels_needed Amount of mip-map levels that should be used for texture storage.
* Only used for texture targets that support mip-maps.
* @param n_cubemaps_needed Amount of cube-maps to be used for initialization of cube map
* array texture storage. Only used if @param texture_internalformat
* is set to GL_TEXTURE_CUBE_MAP_ARRAY.
* @param bo_id ID of a buffer object to be used for initialization of
* buffer texture storage. Only used if @param texture_internalformat
* is set to GL_TEXTURE_BUFFEER.
*
**/
void TextureViewUtilities::initTextureStorage(const glw::Functions& gl, bool init_mutable_to,
glw::GLenum texture_target, glw::GLint texture_depth,
glw::GLint texture_height, glw::GLint texture_width,
glw::GLenum texture_internalformat, glw::GLenum texture_format,
glw::GLenum texture_type, unsigned int n_levels_needed,
unsigned int n_cubemaps_needed, glw::GLint bo_id)
{
const glw::GLenum cubemap_texture_targets[] = { GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z };
const unsigned int n_cubemap_texture_targets = sizeof(cubemap_texture_targets) / sizeof(cubemap_texture_targets[0]);
/* If we're going to be initializing a multisample texture object,
* determine how many samples can be used for GL_RGBA8 internalformat,
* given texture target that is of our interest */
glw::GLint gl_max_color_texture_samples_value = 0;
gl.getIntegerv(GL_MAX_COLOR_TEXTURE_SAMPLES, &gl_max_color_texture_samples_value);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetIntegerv() call failed for GL_MAX_COLOR_TEXTURE_SAMPLES");
if (texture_target == GL_TEXTURE_BUFFER)
{
gl.texBuffer(GL_TEXTURE_BUFFER, texture_internalformat, bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexBuffer() call failed for GL_TEXTURE_BUFFER target");
}
else if (init_mutable_to)
{
for (unsigned int n_level = 0; n_level < n_levels_needed; ++n_level)
{
/* If level != 0 and we're trying to initialize a texture target which
* only accepts a single level, leave now
*/
if (n_level != 0 &&
(texture_target == GL_TEXTURE_RECTANGLE || texture_target == GL_TEXTURE_2D_MULTISAMPLE ||
texture_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY || texture_target == GL_TEXTURE_BUFFER))
{
break;
}
/* Initialize mutable texture storage */
switch (texture_target)
{
case GL_TEXTURE_1D:
{
gl.texImage1D(texture_target, n_level, texture_internalformat, texture_width >> n_level, 0, /* border */
texture_format, texture_type, DE_NULL); /* pixels */
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexImage1D() call failed for GL_TEXTURE_1D texture target");
break;
}
case GL_TEXTURE_1D_ARRAY:
case GL_TEXTURE_2D:
case GL_TEXTURE_RECTANGLE:
{
gl.texImage2D(texture_target, n_level, texture_internalformat, texture_width >> n_level,
texture_height >> n_level, 0, /* border */
texture_format, texture_type, DE_NULL); /* pixels */
GLU_EXPECT_NO_ERROR(gl.getError(),
(texture_target == GL_TEXTURE_1D_ARRAY) ?
"glTexImage2D() call failed for GL_TEXTURE_1D_ARRAY texture target" :
(texture_target == GL_TEXTURE_2D) ?
"glTexImage2D() call failed for GL_TEXTURE_2D texture target" :
"glTexImage2D() call failed for GL_TEXTURE_RECTANGLE texture target");
break;
}
case GL_TEXTURE_2D_ARRAY:
case GL_TEXTURE_3D:
{
gl.texImage3D(texture_target, n_level, texture_internalformat, texture_width >> n_level,
texture_height >> n_level, texture_depth >> n_level, 0, /* border */
texture_format, texture_type, DE_NULL); /* pixels */
GLU_EXPECT_NO_ERROR(gl.getError(),
(texture_target == GL_TEXTURE_2D_ARRAY) ?
"glTexImage3D() call failed for GL_TEXTURE_2D_ARRAY texture target" :
"glTexImage3D() call failed for GL_TEXTURE_3D texture target");
break;
}
case GL_TEXTURE_2D_MULTISAMPLE:
{
gl.texImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, gl_max_color_texture_samples_value,
texture_internalformat, texture_width >> n_level, texture_height >> n_level,
GL_TRUE); /* fixedsamplelocations */
GLU_EXPECT_NO_ERROR(
gl.getError(),
"glTexImage2DMultisample() call failed for GL_TEXTURE_2D_MULTISAMPLE texture target");
break;
}
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
{
gl.texImage3DMultisample(GL_TEXTURE_2D_MULTISAMPLE_ARRAY, gl_max_color_texture_samples_value,
texture_internalformat, texture_width >> n_level, texture_height >> n_level,
texture_depth >> n_level, GL_TRUE); /* fixedsamplelocations */
GLU_EXPECT_NO_ERROR(
gl.getError(),
"glTexImage3DMultisample() call failed for GL_TEXTURE_2D_MULTISAMPLE_ARRAY texture target");
break;
}
case GL_TEXTURE_CUBE_MAP:
{
for (unsigned int n_cubemap_texture_target = 0; n_cubemap_texture_target < n_cubemap_texture_targets;
++n_cubemap_texture_target)
{
glw::GLenum cubemap_texture_target = cubemap_texture_targets[n_cubemap_texture_target];
gl.texImage2D(cubemap_texture_target, n_level, texture_internalformat, texture_width >> n_level,
texture_height >> n_level, 0, /* border */
texture_format, texture_type, DE_NULL); /* pixels */
GLU_EXPECT_NO_ERROR(gl.getError(),
"glTexImage2D() call failed for one of the cube-map texture targets");
break;
} /* for (all cube-map texture targets) */
break;
}
case GL_TEXTURE_CUBE_MAP_ARRAY:
{
gl.texImage3D(texture_target, n_level, texture_internalformat, texture_width >> n_level,
texture_height >> n_level, 6 /* layer-faces */ * n_cubemaps_needed, 0, /* border */
texture_format, texture_type, DE_NULL); /* pixels */
GLU_EXPECT_NO_ERROR(gl.getError(),
"glTexImage3D() call failed for GL_TEXTURE_CUBE_MAP_ARRAY texture target");
break;
}
default:
{
TCU_FAIL("Unrecognized texture target");
}
} /* switch (texture_target) */
} /* for (all levels) */
} /* if (texture_type == TEST_TEXTURE_TYPE_MUTABLE_TEXTURE_OBJECT) */
else
{
/* Initialize immutable texture storage */
switch (texture_target)
{
case GL_TEXTURE_1D:
{
gl.texStorage1D(texture_target, n_levels_needed, texture_internalformat, texture_width);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage1D() call failed for GL_TEXTURE_1D texture target");
break;
}
case GL_TEXTURE_1D_ARRAY:
case GL_TEXTURE_2D:
case GL_TEXTURE_CUBE_MAP:
case GL_TEXTURE_RECTANGLE:
{
const unsigned n_levels = (texture_target == GL_TEXTURE_RECTANGLE) ? 1 : n_levels_needed;
gl.texStorage2D(texture_target, n_levels, texture_internalformat, texture_width, texture_height);
GLU_EXPECT_NO_ERROR(gl.getError(),
(texture_target == GL_TEXTURE_1D_ARRAY) ?
"glTexStorage2D() call failed for GL_TEXTURE_1D_ARRAY texture target" :
(texture_target == GL_TEXTURE_2D) ?
"glTexStorage2D() call failed for GL_TEXTURE_2D texture target" :
(texture_target == GL_TEXTURE_CUBE_MAP) ?
"glTexStorage2D() call failed for GL_TEXTURE_CUBE_MAP texture target" :
"glTexStorage2D() call failed for GL_TEXTURE_RECTANGLE texture target");
break;
}
case GL_TEXTURE_2D_ARRAY:
case GL_TEXTURE_3D:
{
gl.texStorage3D(texture_target, n_levels_needed, texture_internalformat, texture_width, texture_height,
texture_depth);
GLU_EXPECT_NO_ERROR(gl.getError(),
(texture_target == GL_TEXTURE_2D_ARRAY) ?
"glTexStorage3D() call failed for GL_TEXTURE_2D_ARRAY texture target" :
"glTexStorage3D() call failed for GL_TEXTURE_3D texture target");
break;
}
case GL_TEXTURE_2D_MULTISAMPLE:
{
gl.texStorage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, gl_max_color_texture_samples_value,
texture_internalformat, texture_width, texture_height,
GL_TRUE); /* fixedsamplelocations */
GLU_EXPECT_NO_ERROR(gl.getError(),
"glTexStorage2DMultisample() call failed for GL_TEXTURE_2D_MULTISAMPLE texture target");
break;
}
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
{
gl.texStorage3DMultisample(GL_TEXTURE_2D_MULTISAMPLE_ARRAY, gl_max_color_texture_samples_value,
texture_internalformat, texture_width, texture_height, texture_depth,
GL_TRUE); /* fixedsamplelocations */
GLU_EXPECT_NO_ERROR(
gl.getError(),
"glTexStorage3DMultisample() call failed for GL_TEXTURE_2D_MULTISAMPLE_ARRAY texture target");
break;
}
case GL_TEXTURE_CUBE_MAP_ARRAY:
{
const unsigned int actual_texture_depth = 6 /* layer-faces */ * n_cubemaps_needed;
gl.texStorage3D(texture_target, n_levels_needed, texture_internalformat, texture_width, texture_height,
actual_texture_depth);
GLU_EXPECT_NO_ERROR(gl.getError(),
"glTexStorage3D() call failed for GL_TEXTURE_CUBE_MAP_ARRAY texture target");
break;
}
default:
{
TCU_FAIL("Unrecognized texture target");
}
} /* switch (texture_target) */
}
}
/** Tells whether a parent texture object, storage of which uses @param original_internalformat
* internalformat, can be used to generate a texture view using @param view_internalformat
* internalformat.
*
* @param original_internalformat Internalformat used for parent texture object storage.
* @param view_internalformat Internalformat to be used for view texture object storage.
*
* @return true if the internalformats are compatible, false otherwise.
**/
bool TextureViewUtilities::isInternalformatCompatibleForTextureView(glw::GLenum original_internalformat,
glw::GLenum view_internalformat)
{
const _view_class original_internalformat_view_class = getViewClassForInternalformat(original_internalformat);
const _view_class view_internalformat_view_class = getViewClassForInternalformat(view_internalformat);
return (original_internalformat_view_class == view_internalformat_view_class);
}
/** Tells whether user-specified internalformat is compressed.
*
* @param internalformat Internalformat to use for the query.
*
* @return true if @param internalformat is a known compressed internalformat,
* false otherwise.
**/
bool TextureViewUtilities::isInternalformatCompressed(const glw::GLenum internalformat)
{
bool result = false;
switch (internalformat)
{
case GL_COMPRESSED_RED_RGTC1:
case GL_COMPRESSED_SIGNED_RED_RGTC1:
case GL_COMPRESSED_RG_RGTC2:
case GL_COMPRESSED_SIGNED_RG_RGTC2:
case GL_COMPRESSED_RGBA_BPTC_UNORM:
case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
case GL_COMPRESSED_RGB8_ETC2:
case GL_COMPRESSED_SRGB8_ETC2:
case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
case GL_COMPRESSED_RGBA8_ETC2_EAC:
case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
case GL_COMPRESSED_R11_EAC:
case GL_COMPRESSED_SIGNED_R11_EAC:
case GL_COMPRESSED_RG11_EAC:
case GL_COMPRESSED_SIGNED_RG11_EAC:
{
result = true;
break;
}
} /* switch (internalformat) */
return result;
}
/** Tells whether user-specified internalformat operates in sRGB color space.
*
* @param internalformat Internalformat to use for the query.
*
* @return true if @param internalformat is a known sRGB internalformat,
* false otherwise.
**/
bool TextureViewUtilities::isInternalformatSRGB(const glw::GLenum internalformat)
{
return (internalformat == GL_SRGB8 || internalformat == GL_SRGB8_ALPHA8 ||
internalformat == GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM);
}
/** Tells whether user-specified internalformat is supported by OpenGL of a given version.
*
* @param internalformat Internalformat to use for the query.
* @param major_version Major version of the rendering context.
* @param minor_version Minor version of the rendering context.
*
* @return true if the internalformat is supported, false otherwise.
**/
bool TextureViewUtilities::isInternalformatSupported(glw::GLenum internalformat, const glw::GLint major_version,
const glw::GLint minor_version)
{
(void)major_version;
/* NOTE: This function, as it stands right now, does not consider OpenGL contexts
* lesser than 4.
**/
glw::GLint minimum_minor_version = 0;
DE_ASSERT(major_version >= 4);
switch (internalformat)
{
/* >= OpenGL 4.0 */
case GL_RGBA32F:
case GL_RGBA32I:
case GL_RGBA32UI:
case GL_RGBA16:
case GL_RGBA16F:
case GL_RGBA16I:
case GL_RGBA16UI:
case GL_RGBA8:
case GL_RGBA8I:
case GL_RGBA8UI:
case GL_SRGB8_ALPHA8:
case GL_RGB10_A2:
case GL_RGB10_A2UI:
case GL_RGB5_A1:
case GL_RGBA4:
case GL_R11F_G11F_B10F:
case GL_RG32F:
case GL_RG32I:
case GL_RG32UI:
case GL_RG16:
case GL_RG16F:
case GL_RG16I:
case GL_RG16UI:
case GL_RG8:
case GL_RG8I:
case GL_RG8UI:
case GL_R32F:
case GL_R32I:
case GL_R32UI:
case GL_R16F:
case GL_R16I:
case GL_R16UI:
case GL_R16:
case GL_R8:
case GL_R8I:
case GL_R8UI:
case GL_RGBA16_SNORM:
case GL_RGBA8_SNORM:
case GL_RGB32F:
case GL_RGB32I:
case GL_RGB32UI:
case GL_RGB16_SNORM:
case GL_RGB16F:
case GL_RGB16I:
case GL_RGB16UI:
case GL_RGB16:
case GL_RGB8_SNORM:
case GL_RGB8:
case GL_RGB8I:
case GL_RGB8UI:
case GL_SRGB8:
case GL_RGB9_E5:
case GL_RG16_SNORM:
case GL_RG8_SNORM:
case GL_R16_SNORM:
case GL_R8_SNORM:
case GL_DEPTH_COMPONENT32F:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT16:
case GL_DEPTH32F_STENCIL8:
case GL_DEPTH24_STENCIL8:
case GL_COMPRESSED_RED_RGTC1:
case GL_COMPRESSED_SIGNED_RED_RGTC1:
case GL_COMPRESSED_RG_RGTC2:
case GL_COMPRESSED_SIGNED_RG_RGTC2:
{
/* Already covered by default value of minimum_minor_version */
break;
}
/* >= OpenGL 4.2 */
case GL_RGB565:
case GL_COMPRESSED_RGBA_BPTC_UNORM:
case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
{
minimum_minor_version = 2;
break;
}
/* >= OpenGL 4.3 */
case GL_COMPRESSED_RGB8_ETC2:
case GL_COMPRESSED_SRGB8_ETC2:
case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
case GL_COMPRESSED_RGBA8_ETC2_EAC:
case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
case GL_COMPRESSED_R11_EAC:
case GL_COMPRESSED_SIGNED_R11_EAC:
case GL_COMPRESSED_RG11_EAC:
case GL_COMPRESSED_SIGNED_RG11_EAC:
{
minimum_minor_version = 3;
break;
}
default:
TCU_FAIL("Unrecognized internalformat");
}
return (minor_version >= minimum_minor_version);
}
/** Tells whether a parent texture object using @param original_texture_target texture target
* can be used to generate a texture view of @param view_texture_target texture target.
*
* @param original_texture_target Texture target used by parent texture;
* @param view_texture_target Texture target to be used for view texture;
*
* @return true if the texture targets are compatible, false otherwise.
**/
bool TextureViewUtilities::isLegalTextureTargetForTextureView(glw::GLenum original_texture_target,
glw::GLenum view_texture_target)
{
bool result = false;
switch (original_texture_target)
{
case GL_TEXTURE_1D:
{
result = (view_texture_target == GL_TEXTURE_1D || view_texture_target == GL_TEXTURE_1D_ARRAY);
break;
}
case GL_TEXTURE_2D:
{
result = (view_texture_target == GL_TEXTURE_2D || view_texture_target == GL_TEXTURE_2D_ARRAY);
break;
}
case GL_TEXTURE_3D:
{
result = (view_texture_target == GL_TEXTURE_3D);
break;
}
case GL_TEXTURE_CUBE_MAP:
{
result = (view_texture_target == GL_TEXTURE_CUBE_MAP || view_texture_target == GL_TEXTURE_2D ||
view_texture_target == GL_TEXTURE_2D_ARRAY || view_texture_target == GL_TEXTURE_CUBE_MAP_ARRAY);
break;
}
case GL_TEXTURE_RECTANGLE:
{
result = (view_texture_target == GL_TEXTURE_RECTANGLE);
break;
}
case GL_TEXTURE_BUFFER:
{
/* No targets supported */
break;
}
case GL_TEXTURE_1D_ARRAY:
{
result = (view_texture_target == GL_TEXTURE_1D_ARRAY || view_texture_target == GL_TEXTURE_1D);
break;
}
case GL_TEXTURE_2D_ARRAY:
{
result = (view_texture_target == GL_TEXTURE_2D_ARRAY || view_texture_target == GL_TEXTURE_2D ||
view_texture_target == GL_TEXTURE_CUBE_MAP || view_texture_target == GL_TEXTURE_CUBE_MAP_ARRAY);
break;
}
case GL_TEXTURE_CUBE_MAP_ARRAY:
{
result = (view_texture_target == GL_TEXTURE_CUBE_MAP_ARRAY || view_texture_target == GL_TEXTURE_2D_ARRAY ||
view_texture_target == GL_TEXTURE_2D || view_texture_target == GL_TEXTURE_CUBE_MAP);
break;
}
case GL_TEXTURE_2D_MULTISAMPLE:
{
result = (view_texture_target == GL_TEXTURE_2D_MULTISAMPLE ||
view_texture_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY);
break;
}
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
{
result = (view_texture_target == GL_TEXTURE_2D_MULTISAMPLE ||
view_texture_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY);
break;
}
} /* switch (original_texture_target) */
return result;
}
/** Constructor.
*
* @param context Rendering context.
**/
TextureViewTestGetTexParameter::TextureViewTestGetTexParameter(deqp::Context& context)
: TestCase(context, "gettexparameter", "Verifies glGetTexParameterfv() and glGetTexParameteriv() "
"work as specified")
{
/* Left blank on purpose */
}
/** De-initializes all GL objects created for the test. */
void TextureViewTestGetTexParameter::deinit()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Deinitialize all test runs */
for (_test_runs_iterator it = m_test_runs.begin(); it != m_test_runs.end(); ++it)
{
_test_run& test_run = *it;
if (test_run.parent_texture_object_id != 0)
{
gl.deleteTextures(1, &test_run.parent_texture_object_id);
test_run.parent_texture_object_id = 0;
}
if (test_run.texture_view_object_created_from_immutable_to_id != 0)
{
gl.deleteTextures(1, &test_run.texture_view_object_created_from_immutable_to_id);
test_run.texture_view_object_created_from_immutable_to_id = 0;
}
if (test_run.texture_view_object_created_from_view_to_id != 0)
{
gl.deleteTextures(1, &test_run.texture_view_object_created_from_view_to_id);
test_run.texture_view_object_created_from_view_to_id = 0;
}
}
m_test_runs.clear();
}
/** Initializes test run descriptors used by the test. This also includes
* all GL objects used by all the iterations.
**/
void TextureViewTestGetTexParameter::initTestRuns()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
const int n_cubemaps_needed = 4; /* only used for GL_TEXTURE_CUBE_MAP_ARRAY */
const int texture_depth = 16;
const int texture_height = 32;
const int texture_width = 64;
const glw::GLenum texture_targets[] = {
GL_TEXTURE_1D, GL_TEXTURE_1D_ARRAY, GL_TEXTURE_2D,
GL_TEXTURE_2D_ARRAY, GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_2D_MULTISAMPLE_ARRAY,
GL_TEXTURE_3D, GL_TEXTURE_CUBE_MAP, GL_TEXTURE_CUBE_MAP_ARRAY,
GL_TEXTURE_RECTANGLE
};
const _test_texture_type texture_types[] = { TEST_TEXTURE_TYPE_NO_STORAGE_ALLOCATED,
TEST_TEXTURE_TYPE_IMMUTABLE_TEXTURE_OBJECT,
TEST_TEXTURE_TYPE_MUTABLE_TEXTURE_OBJECT,
TEST_TEXTURE_TYPE_TEXTURE_VIEW_CREATED_FROM_IMMUTABLE_TEXTURE_OBJECT,
TEST_TEXTURE_TYPE_TEXTURE_VIEW_CREATED_FROM_TEXTURE_VIEW };
const unsigned int n_texture_targets = sizeof(texture_targets) / sizeof(texture_targets[0]);
const unsigned int n_texture_types = sizeof(texture_types) / sizeof(texture_types[0]);
/* Iterate through all texture types supported by the test */
for (unsigned int n_texture_type = 0; n_texture_type < n_texture_types; ++n_texture_type)
{
const _test_texture_type texture_type = texture_types[n_texture_type];
/* Iterate through all texture targets supported by the test */
for (unsigned int n_texture_target = 0; n_texture_target < n_texture_targets; ++n_texture_target)
{
_test_run new_test_run;
const glw::GLenum texture_target = texture_targets[n_texture_target];
/* Texture buffers are neither immutable nor mutable. In order to avoid testing
* them in both cases, let's assume they are immutable objects */
if (texture_target == GL_TEXTURE_BUFFER && texture_type == TEST_TEXTURE_TYPE_MUTABLE_TEXTURE_OBJECT)
{
continue;
}
/* Set up test run properties. Since we're only testing a single
* configuration, we can set these to predefined values..
*/
const int n_levels_needed = 6;
glw::GLint n_min_layer = 1;
glw::GLint n_num_layers = 2;
glw::GLint n_min_level = 2;
glw::GLint n_num_levels = 3;
int parent_texture_depth = texture_depth;
int parent_texture_height = texture_height;
int parent_texture_width = texture_width;
new_test_run.texture_target = texture_target;
new_test_run.texture_type = texture_type;
/* Take note of target-specific restrictions */
if (texture_target == GL_TEXTURE_CUBE_MAP || texture_target == GL_TEXTURE_CUBE_MAP_ARRAY)
{
n_num_layers = 6 /* layer-faces */ * 2; /* as per spec */
/* Make sure that cube face width matches its height */
parent_texture_height = 64;
parent_texture_width = 64;
/* Also change the depth so that there's at least a few layers
* we can use in the test for GL_TEXTURE_CUBE_MAP_ARRAY case
*/
parent_texture_depth = 64;
}
if (texture_target == GL_TEXTURE_CUBE_MAP)
{
/* Texture views created from a cube map texture should always
* use a minimum layer of zero
*/
n_min_layer = 0;
n_num_layers = 6;
}
if (texture_target == GL_TEXTURE_CUBE_MAP_ARRAY)
{
/* Slightly modify the values we'll use for <minlayer>
* and <numlayers> arguments passed to glTextureView() calls
* so that we can test the "view from view from texture" case
*/
n_min_layer = 0;
}
if (texture_target == GL_TEXTURE_1D || texture_target == GL_TEXTURE_2D ||
texture_target == GL_TEXTURE_2D_MULTISAMPLE || texture_target == GL_TEXTURE_3D ||
texture_target == GL_TEXTURE_RECTANGLE)
{
/* All these texture targets are single-layer only. glTextureView()
* also requires <numlayers> argument to be set to 1 for them, so
* take this into account.
**/
n_min_layer = 0;
n_num_layers = 1;
}
if (texture_target == GL_TEXTURE_2D_MULTISAMPLE || texture_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY ||
texture_target == GL_TEXTURE_RECTANGLE)
{
/* All these texture targets do not support mip-maps */
n_min_level = 0;
}
/* Initialize parent texture object */
gl.genTextures(1, &new_test_run.parent_texture_object_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call failed");
gl.bindTexture(texture_target, new_test_run.parent_texture_object_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
if (texture_type != TEST_TEXTURE_TYPE_NO_STORAGE_ALLOCATED)
{
TextureViewUtilities::initTextureStorage(gl, (texture_type == TEST_TEXTURE_TYPE_MUTABLE_TEXTURE_OBJECT),
texture_target, parent_texture_depth, parent_texture_height,
parent_texture_width, GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE,
n_levels_needed, n_cubemaps_needed, 0); /* bo_id */
}
/* Update expected view-specific property values to include interactions
* with immutable textures. */
if (texture_type == TEST_TEXTURE_TYPE_IMMUTABLE_TEXTURE_OBJECT ||
texture_type == TEST_TEXTURE_TYPE_TEXTURE_VIEW_CREATED_FROM_IMMUTABLE_TEXTURE_OBJECT ||
texture_type == TEST_TEXTURE_TYPE_TEXTURE_VIEW_CREATED_FROM_TEXTURE_VIEW)
{
/* Set expected GL_TEXTURE_IMMUTABLE_LEVELS property value to the number
* of levels we'll be using for the immutable texture storage. For selected
* texture targets that do no take <levels> argument, we'll change this
* value on a case-by-case basis.
*/
new_test_run.expected_n_immutable_levels = n_levels_needed;
/* Set expected GL_TEXTURE_VIEW_NUM_LAYERS property value to 1, as per GL spec.
* This value will be modified for selected texture targets */
new_test_run.expected_n_num_layers = 1;
/* Configured expected GL_TEXTURE_VIEW_NUM_LEVELS value as per GL spec */
new_test_run.expected_n_num_levels = n_levels_needed;
/* Initialize immutable texture storage */
switch (texture_target)
{
case GL_TEXTURE_1D_ARRAY:
{
/* Update expected GL_TEXTURE_VIEW_NUM_LAYERS property value as per GL specification */
new_test_run.expected_n_num_layers = texture_height;
break;
}
case GL_TEXTURE_CUBE_MAP:
{
/* Update expected GL_TEXTURE_VIEW_NUM_LAYERS property value as per GL specification */
new_test_run.expected_n_num_layers = 6;
break;
}
case GL_TEXTURE_RECTANGLE:
{
new_test_run.expected_n_immutable_levels = 1;
new_test_run.expected_n_num_levels = 1;
break;
}
case GL_TEXTURE_2D_ARRAY:
{
/* Update expected GL_TEXTURE_VIEW_NUM_LAYERS property value as per GL specification */
new_test_run.expected_n_num_layers = texture_depth;
break;
}
case GL_TEXTURE_2D_MULTISAMPLE:
{
/* 2D multisample texture are not mip-mapped, so update
* expected GL_TEXTURE_IMMUTABLE_LEVELS and GL_TEXTURE_VIEW_NUM_LEVELS
* value accordingly */
new_test_run.expected_n_immutable_levels = 1;
new_test_run.expected_n_num_levels = 1;
break;
}
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
{
/* 2D multisample array textures are not mip-mapped, so update
* expected GL_TEXTURE_IMMUTABLE_LEVELS and GL_TEXTURE_VIEW_NUM_LEVELS
* values accordingly */
new_test_run.expected_n_immutable_levels = 1;
new_test_run.expected_n_num_levels = 1;
/* Update expected GL_TEXTURE_VIEW_NUM_LAYERS property value as per GL specification */
new_test_run.expected_n_num_layers = texture_depth;
break;
}
case GL_TEXTURE_CUBE_MAP_ARRAY:
{
const unsigned int actual_texture_depth = 6 /* layer-faces */ * n_cubemaps_needed;
/* Update expected GL_TEXTURE_VIEW_NUM_LAYERS property value as per GL specification */
new_test_run.expected_n_num_layers = actual_texture_depth;
break;
}
} /* switch (texture_target) */
}
/* Initialize the view(s) */
if (texture_type == TEST_TEXTURE_TYPE_TEXTURE_VIEW_CREATED_FROM_IMMUTABLE_TEXTURE_OBJECT ||
texture_type == TEST_TEXTURE_TYPE_TEXTURE_VIEW_CREATED_FROM_TEXTURE_VIEW)
{
const unsigned int n_iterations =
(texture_type == TEST_TEXTURE_TYPE_TEXTURE_VIEW_CREATED_FROM_TEXTURE_VIEW) ? 2 : 1;
for (unsigned int n_iteration = 0; n_iteration < n_iterations; ++n_iteration)
{
glw::GLuint* parent_id_ptr = (n_iteration == 0) ?
&new_test_run.parent_texture_object_id :
&new_test_run.texture_view_object_created_from_immutable_to_id;
glw::GLuint* view_id_ptr = (n_iteration == 0) ?
&new_test_run.texture_view_object_created_from_immutable_to_id :
&new_test_run.texture_view_object_created_from_view_to_id;
gl.genTextures(1, view_id_ptr);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call failed");
gl.textureView(*view_id_ptr, new_test_run.texture_target, *parent_id_ptr,
GL_RGBA8, /* use the parent texture object's internalformat */
n_min_level, n_num_levels, n_min_layer, n_num_layers);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTextureView() call failed");
/* Query parent object's properties */
glw::GLint parent_min_level = -1;
glw::GLint parent_min_layer = -1;
glw::GLint parent_num_layers = -1;
glw::GLint parent_num_levels = -1;
glw::GLint parent_n_immutable_levels = -1;
gl.bindTexture(texture_target, *parent_id_ptr);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
gl.getTexParameteriv(texture_target, GL_TEXTURE_IMMUTABLE_LEVELS, &parent_n_immutable_levels);
GLU_EXPECT_NO_ERROR(
gl.getError(),
"glGetTexParameteriv() failed for GL_TEXTURE_IMMUTABLE_LEVELS pname queried for parent object");
gl.getTexParameteriv(texture_target, GL_TEXTURE_VIEW_MIN_LAYER, &parent_min_layer);
GLU_EXPECT_NO_ERROR(
gl.getError(),
"glGetTexParameteriv() failed for GL_TEXTURE_VIEW_MIN_LAYER pname queried for parent object");
gl.getTexParameteriv(texture_target, GL_TEXTURE_VIEW_MIN_LEVEL, &parent_min_level);
GLU_EXPECT_NO_ERROR(
gl.getError(),
"glGetTexParameteriv() failed for GL_TEXTURE_VIEW_MIN_LEVEL pname queried for parent object");
gl.getTexParameteriv(texture_target, GL_TEXTURE_VIEW_NUM_LAYERS, &parent_num_layers);
GLU_EXPECT_NO_ERROR(
gl.getError(),
"glGetTexParameteriv() failed for GL_TEXTURE_VIEW_NUM_LAYERS pname queried for parent object");
gl.getTexParameteriv(texture_target, GL_TEXTURE_VIEW_NUM_LEVELS, &parent_num_levels);
GLU_EXPECT_NO_ERROR(
gl.getError(),
"glGetTexParameteriv() failed for GL_TEXTURE_VIEW_NUM_LEVELS pname queried for parent object");
/* Update test run-specific expected values as per GL_ARB_texture_view extension specification */
/*
* - TEXTURE_IMMUTABLE_LEVELS is set to the value of TEXTURE_IMMUTABLE_LEVELS
* from the original texture.
*/
new_test_run.expected_n_immutable_levels = parent_n_immutable_levels;
/*
* - TEXTURE_VIEW_MIN_LEVEL is set to <minlevel> plus the value of
* TEXTURE_VIEW_MIN_LEVEL from the original texture.
*/
new_test_run.expected_n_min_level = n_min_level + parent_min_level;
/*
* - TEXTURE_VIEW_MIN_LAYER is set to <minlayer> plus the value of
* TEXTURE_VIEW_MIN_LAYER from the original texture.
*/
new_test_run.expected_n_min_layer = n_min_layer + parent_min_layer;
/*
* - TEXTURE_VIEW_NUM_LAYERS is set to the lesser of <numlayers> and the
* value of TEXTURE_VIEW_NUM_LAYERS from the original texture minus
* <minlayer>.
*
*/
if ((parent_num_layers - n_min_layer) < n_num_layers)
{
new_test_run.expected_n_num_layers = parent_num_layers - n_min_layer;
}
else
{
new_test_run.expected_n_num_layers = n_num_layers;
}
/*
* - TEXTURE_VIEW_NUM_LEVELS is set to the lesser of <numlevels> and the
* value of TEXTURE_VIEW_NUM_LEVELS from the original texture minus
* <minlevels>.
*
*/
if ((parent_num_levels - n_min_level) < n_num_levels)
{
new_test_run.expected_n_num_levels = parent_num_levels - n_min_level;
}
else
{
new_test_run.expected_n_num_levels = n_num_levels;
}
} /* for (all iterations) */
} /* if (texture_type == TEST_TEXTURE_TYPE_TEXTURE_VIEW_CREATED_FROM_IMMUTABLE_TEXTURE_OBJECT ||
texture_type == TEST_TEXTURE_TYPE_TEXTURE_VIEW_CREATED_FROM_TEXTURE_VIEW) */
/* Store the descriptor */
m_test_runs.push_back(new_test_run);
} /* for (all texture targets) */
} /* for (all texture types) */
}
/** Executes test iteration.
*
* @return Returns STOP when test has finished executing, CONTINUE if more iterations are needed.
*/
tcu::TestNode::IterateResult TextureViewTestGetTexParameter::iterate()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Make sure GL_ARB_texture_view is reported as supported before carrying on
* with actual execution */
const std::vector<std::string>& extensions = m_context.getContextInfo().getExtensions();
if (std::find(extensions.begin(), extensions.end(), "GL_ARB_texture_view") == extensions.end())
{
throw tcu::NotSupportedError("GL_ARB_texture_view is not supported");
}
/* Initialize all objects necessary to execute the test */
initTestRuns();
/* Iterate through all test runs and issue the queries */
for (_test_runs_const_iterator test_run_iterator = m_test_runs.begin(); test_run_iterator != m_test_runs.end();
test_run_iterator++)
{
glw::GLfloat query_texture_immutable_levels_value_float = -1.0f;
glw::GLint query_texture_immutable_levels_value_int = -1;
glw::GLfloat query_texture_view_min_layer_value_float = -1.0f;
glw::GLint query_texture_view_min_layer_value_int = -1;
glw::GLfloat query_texture_view_min_level_value_float = -1.0f;
glw::GLint query_texture_view_min_level_value_int = -1;
glw::GLfloat query_texture_view_num_layers_value_float = -1.0f;
glw::GLint query_texture_view_num_layers_value_int = -1;
glw::GLfloat query_texture_view_num_levels_value_float = -1.0f;
glw::GLint query_texture_view_num_levels_value_int = -1;
const _test_run& test_run = *test_run_iterator;
glw::GLint texture_object_id = 0;
switch (test_run.texture_type)
{
case TEST_TEXTURE_TYPE_IMMUTABLE_TEXTURE_OBJECT:
texture_object_id = test_run.parent_texture_object_id;
break;
case TEST_TEXTURE_TYPE_MUTABLE_TEXTURE_OBJECT:
texture_object_id = test_run.parent_texture_object_id;
break;
case TEST_TEXTURE_TYPE_NO_STORAGE_ALLOCATED:
texture_object_id = test_run.parent_texture_object_id;
break;
case TEST_TEXTURE_TYPE_TEXTURE_VIEW_CREATED_FROM_IMMUTABLE_TEXTURE_OBJECT:
texture_object_id = test_run.texture_view_object_created_from_immutable_to_id;
break;
case TEST_TEXTURE_TYPE_TEXTURE_VIEW_CREATED_FROM_TEXTURE_VIEW:
texture_object_id = test_run.texture_view_object_created_from_view_to_id;
break;
default:
{
TCU_FAIL("Unrecognized texture type");
}
}
/* Bind the texture object of our interest to the target */
gl.bindTexture(test_run.texture_target, texture_object_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
/* Run all the queries */
gl.getTexParameterfv(test_run.texture_target, GL_TEXTURE_IMMUTABLE_LEVELS,
&query_texture_immutable_levels_value_float);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetTexParameterfv() failed for GL_TEXTURE_IMMUTABLE_LEVELS pname");
gl.getTexParameteriv(test_run.texture_target, GL_TEXTURE_IMMUTABLE_LEVELS,
&query_texture_immutable_levels_value_int);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetTexPrameteriv() failed for GL_TEXTURE_IMMUTABLE_LEVELS pname");
gl.getTexParameterfv(test_run.texture_target, GL_TEXTURE_VIEW_MIN_LAYER,
&query_texture_view_min_layer_value_float);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetTexParameterfv() failed for GL_TEXTURE_VIEW_MIN_LAYER pname");
gl.getTexParameteriv(test_run.texture_target, GL_TEXTURE_VIEW_MIN_LAYER,
&query_texture_view_min_layer_value_int);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetTexParameteriv() failed for GL_TEXTURE_VIEW_MIN_LAYER pname");
gl.getTexParameterfv(test_run.texture_target, GL_TEXTURE_VIEW_MIN_LEVEL,
&query_texture_view_min_level_value_float);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetTexParameterfv() failed for GL_TEXTURE_VIEW_MIN_LEVEL pname");
gl.getTexParameteriv(test_run.texture_target, GL_TEXTURE_VIEW_MIN_LEVEL,
&query_texture_view_min_level_value_int);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetTexParameteriv() failed for GL_TEXTURE_VIEW_MIN_LEVEL pname");
gl.getTexParameterfv(test_run.texture_target, GL_TEXTURE_VIEW_NUM_LAYERS,
&query_texture_view_num_layers_value_float);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetTexParameterfv() failed for GL_TEXTURE_VIEW_NUM_LAYERS pname");
gl.getTexParameteriv(test_run.texture_target, GL_TEXTURE_VIEW_NUM_LAYERS,
&query_texture_view_num_layers_value_int);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetTexParameteriv() failed for GL_TEXTURE_VIEW_NUM_LAYERS pname");
gl.getTexParameterfv(test_run.texture_target, GL_TEXTURE_VIEW_NUM_LEVELS,
&query_texture_view_num_levels_value_float);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetTexParameterfv() failed for GL_TEXTURE_VIEW_NUM_LEVELS pname");
gl.getTexParameteriv(test_run.texture_target, GL_TEXTURE_VIEW_NUM_LEVELS,
&query_texture_view_num_levels_value_int);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetTexParameteriv() failed for GL_TEXTURE_VIEW_NUM_LEVELS pname");
/* Verify the results */
const float epsilon = 1e-5f;
if (de::abs(query_texture_immutable_levels_value_float - (float)test_run.expected_n_immutable_levels) > epsilon)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "Invalid floating-point value reported for GL_TEXTURE_IMMUTABLE_LEVELS pname "
<< "(expected: " << test_run.expected_n_immutable_levels
<< " found: " << query_texture_immutable_levels_value_float << ")."
<< tcu::TestLog::EndMessage;
TCU_FAIL("Invalid FP value reported for GL_TEXTURE_IMMUTABLE_LEVELS pname");
}
if (query_texture_immutable_levels_value_int != test_run.expected_n_immutable_levels)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "Invalid integer value reported for GL_TEXTURE_IMMUTABLE_LEVELS pname "
<< "(expected: " << test_run.expected_n_immutable_levels
<< " found: " << query_texture_immutable_levels_value_int << ")."
<< tcu::TestLog::EndMessage;
TCU_FAIL("Invalid FP value reported for GL_TEXTURE_IMMUTABLE_LEVELS pname");
}
if (de::abs(query_texture_view_min_layer_value_float - (float)test_run.expected_n_min_layer) > epsilon)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "Invalid floating-point value reported for GL_TEXTURE_VIEW_MIN_LAYER pname "
<< "(expected: " << test_run.expected_n_min_layer
<< " found: " << query_texture_view_min_layer_value_float << ")."
<< tcu::TestLog::EndMessage;
TCU_FAIL("Invalid FP value reported for GL_TEXTURE_VIEW_MIN_LAYER pname");
}
if (query_texture_view_min_layer_value_int != test_run.expected_n_min_layer)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "Invalid integer value reported for GL_TEXTURE_VIEW_MIN_LAYER pname "
<< "(expected: " << test_run.expected_n_min_layer
<< " found: " << query_texture_view_min_layer_value_int << ")."
<< tcu::TestLog::EndMessage;
TCU_FAIL("Invalid FP value reported for GL_TEXTURE_VIEW_MIN_LAYER pname");
}
if (de::abs(query_texture_view_min_level_value_float - (float)test_run.expected_n_min_level) > epsilon)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "Invalid floating-point value reported for GL_TEXTURE_VIEW_MIN_LEVEL pname "
<< "(expected: " << test_run.expected_n_min_level
<< " found: " << query_texture_view_min_level_value_float << ")."
<< tcu::TestLog::EndMessage;
TCU_FAIL("Invalid FP value reported for GL_TEXTURE_VIEW_MIN_LEVEL pname");
}
if (query_texture_view_min_level_value_int != test_run.expected_n_min_level)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "Invalid integer value reported for GL_TEXTURE_VIEW_MIN_LEVEL pname "
<< "(expected: " << test_run.expected_n_min_level
<< " found: " << query_texture_view_min_level_value_int << ")."
<< tcu::TestLog::EndMessage;
TCU_FAIL("Invalid FP value reported for GL_TEXTURE_VIEW_MIN_LEVEL pname");
}
if (de::abs(query_texture_view_num_layers_value_float - (float)test_run.expected_n_num_layers) > epsilon)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "Invalid floating-point value reported for GL_TEXTURE_VIEW_NUM_LAYERS pname "
<< "(expected: " << test_run.expected_n_num_layers
<< " found: " << query_texture_view_num_layers_value_float << ")."
<< tcu::TestLog::EndMessage;
TCU_FAIL("Invalid FP value reported for GL_TEXTURE_VIEW_NUM_LAYERS pname");
}
if (query_texture_view_num_layers_value_int != test_run.expected_n_num_layers)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "Invalid integer value reported for GL_TEXTURE_VIEW_NUM_LAYERS pname "
<< "(expected: " << test_run.expected_n_num_layers
<< " found: " << query_texture_view_num_layers_value_int << ")."
<< tcu::TestLog::EndMessage;
TCU_FAIL("Invalid FP value reported for GL_TEXTURE_VIEW_NUM_LAYERS pname");
}
if (de::abs(query_texture_view_num_levels_value_float - (float)test_run.expected_n_num_levels) > epsilon)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "Invalid floating-point value reported for GL_TEXTURE_VIEW_NUM_LEVELS pname "
<< "(expected: " << test_run.expected_n_num_levels
<< " found: " << query_texture_view_num_levels_value_float << ")."
<< tcu::TestLog::EndMessage;
TCU_FAIL("Invalid FP value reported for GL_TEXTURE_VIEW_NUM_LEVELS pname");
}
if (query_texture_view_num_levels_value_int != test_run.expected_n_num_levels)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "Invalid integer value reported for GL_TEXTURE_VIEW_NUM_LEVELS pname "
<< "(expected: " << test_run.expected_n_num_levels
<< " found: " << query_texture_view_num_levels_value_int << ")."
<< tcu::TestLog::EndMessage;
TCU_FAIL("Invalid FP value reported for GL_TEXTURE_VIEW_NUM_LEVELS pname");
}
} /* for (all test runs) */
/* Test case passed */
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
/** Constructor.
*
* @param context Rendering context
**/
TextureViewTestErrors::TextureViewTestErrors(deqp::Context& context)
: TestCase(context, "errors", "test_description")
, m_bo_id(0)
, m_reference_immutable_to_1d_id(0)
, m_reference_immutable_to_2d_id(0)
, m_reference_immutable_to_2d_array_id(0)
, m_reference_immutable_to_2d_array_32_by_33_id(0)
, m_reference_immutable_to_2d_multisample_id(0)
, m_reference_immutable_to_3d_id(0)
, m_reference_immutable_to_cube_map_id(0)
, m_reference_immutable_to_cube_map_array_id(0)
, m_reference_immutable_to_rectangle_id(0)
, m_reference_mutable_to_2d_id(0)
, m_test_modified_to_id_1(0)
, m_test_modified_to_id_2(0)
, m_test_modified_to_id_3(0)
, m_view_bound_to_id(0)
, m_view_never_bound_to_id(0)
{
/* Left blank on purpose */
}
/** Deinitializes all GL objects that may have been generated for the test. */
void TextureViewTestErrors::deinit()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
if (m_bo_id != 0)
{
gl.deleteBuffers(1, &m_bo_id);
m_bo_id = 0;
}
if (m_reference_immutable_to_1d_id != 0)
{
gl.deleteTextures(1, &m_reference_immutable_to_1d_id);
m_reference_immutable_to_1d_id = 0;
}
if (m_reference_immutable_to_2d_id != 0)
{
gl.deleteTextures(1, &m_reference_immutable_to_2d_id);
m_reference_immutable_to_2d_id = 0;
}
if (m_reference_immutable_to_2d_array_id != 0)
{
gl.deleteTextures(1, &m_reference_immutable_to_2d_array_id);
m_reference_immutable_to_2d_array_id = 0;
}
if (m_reference_immutable_to_2d_array_32_by_33_id != 0)
{
gl.deleteTextures(1, &m_reference_immutable_to_2d_array_32_by_33_id);
m_reference_immutable_to_2d_array_32_by_33_id = 0;
}
if (m_reference_immutable_to_2d_multisample_id != 0)
{
gl.deleteTextures(1, &m_reference_immutable_to_2d_multisample_id);
m_reference_immutable_to_2d_multisample_id = 0;
}
if (m_reference_immutable_to_3d_id != 0)
{
gl.deleteTextures(1, &m_reference_immutable_to_3d_id);
m_reference_immutable_to_3d_id = 0;
}
if (m_reference_immutable_to_cube_map_id != 0)
{
gl.deleteTextures(1, &m_reference_immutable_to_cube_map_id);
m_reference_immutable_to_cube_map_id = 0;
}
if (m_reference_immutable_to_cube_map_array_id != 0)
{
gl.deleteTextures(1, &m_reference_immutable_to_cube_map_array_id);
m_reference_immutable_to_cube_map_array_id = 0;
}
if (m_reference_immutable_to_rectangle_id != 0)
{
gl.deleteTextures(1, &m_reference_immutable_to_rectangle_id);
m_reference_immutable_to_rectangle_id = 0;
}
if (m_reference_mutable_to_2d_id != 0)
{
gl.deleteTextures(1, &m_reference_mutable_to_2d_id);
m_reference_mutable_to_2d_id = 0;
}
if (m_test_modified_to_id_1 != 0)
{
gl.deleteTextures(1, &m_test_modified_to_id_1);
m_test_modified_to_id_1 = 0;
}
if (m_test_modified_to_id_2 != 0)
{
gl.deleteTextures(1, &m_test_modified_to_id_2);
m_test_modified_to_id_2 = 0;
}
if (m_test_modified_to_id_3 != 0)
{
gl.deleteTextures(1, &m_test_modified_to_id_3);
m_test_modified_to_id_3 = 0;
}
if (m_view_bound_to_id != 0)
{
gl.deleteTextures(1, &m_view_bound_to_id);
m_view_bound_to_id = 0;
}
if (m_view_never_bound_to_id != 0)
{
gl.deleteTextures(1, &m_view_never_bound_to_id);
m_view_never_bound_to_id = 0;
}
}
/** Executes test iteration.
*
* @return Returns STOP when test has finished executing, CONTINUE if more iterations are needed.
*/
tcu::TestNode::IterateResult TextureViewTestErrors::iterate()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Make sure GL_ARB_texture_view is reported as supported before carrying on
* with actual execution */
const std::vector<std::string>& extensions = m_context.getContextInfo().getExtensions();
if (std::find(extensions.begin(), extensions.end(), "GL_ARB_texture_view") == extensions.end())
{
throw tcu::NotSupportedError("GL_ARB_texture_view is not supported");
}
/* Create a buffer object that we'll need to use to define storage of
* buffer textures */
gl.genBuffers(1, &m_bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenBuffers() call failed");
gl.bindBuffer(GL_TEXTURE_BUFFER, m_bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer() call failed");
gl.bufferData(GL_TEXTURE_BUFFER, 123, /* arbitrary size */
DE_NULL, /* data */
GL_STATIC_DRAW);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBufferData() call failed");
/* Create reference texture objects */
const glw::GLint reference_bo_id = m_bo_id;
const glw::GLint reference_to_depth = 2;
const glw::GLenum reference_to_format = GL_RGBA;
const glw::GLint reference_to_height = 64;
const glw::GLenum reference_to_internalformat = GL_RGBA32F;
const glw::GLint reference_n_cubemaps = 1;
const glw::GLint reference_n_levels = 1;
const glw::GLenum reference_to_type = GL_FLOAT;
const glw::GLint reference_to_width = 64;
gl.genTextures(1, &m_reference_immutable_to_1d_id);
gl.genTextures(1, &m_reference_immutable_to_2d_id);
gl.genTextures(1, &m_reference_immutable_to_2d_array_id);
gl.genTextures(1, &m_reference_immutable_to_2d_array_32_by_33_id);
gl.genTextures(1, &m_reference_immutable_to_2d_multisample_id);
gl.genTextures(1, &m_reference_immutable_to_3d_id);
gl.genTextures(1, &m_reference_immutable_to_cube_map_id);
gl.genTextures(1, &m_reference_immutable_to_cube_map_array_id);
gl.genTextures(1, &m_reference_immutable_to_rectangle_id);
gl.genTextures(1, &m_reference_mutable_to_2d_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call(s) failed");
/* Retrieve GL_SAMPLES value - we'll need it to initialize multisample storage */
glw::GLint gl_max_samples_value = 0;
gl.getInternalformativ(GL_TEXTURE_2D_MULTISAMPLE, reference_to_internalformat, GL_SAMPLES,
1 /* bufSize - first result */, &gl_max_samples_value);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetInternalformativ() failed for GL_SAMPLES pname");
/* Set up texture storage for single-dimensional texture object */
gl.bindTexture(GL_TEXTURE_1D, m_reference_immutable_to_1d_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
gl.texStorage1D(GL_TEXTURE_1D, reference_n_levels, reference_to_internalformat, reference_to_width);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage1D() call failed");
/* Set up immutable texture storage for two-dimensional texture object */
gl.bindTexture(GL_TEXTURE_2D, m_reference_immutable_to_2d_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
gl.texStorage2D(GL_TEXTURE_2D, reference_n_levels, reference_to_internalformat, reference_to_width,
reference_to_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed");
/* Set up immutable texture storage for two-dimensional array texture object */
gl.bindTexture(GL_TEXTURE_2D_ARRAY, m_reference_immutable_to_2d_array_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
gl.texStorage3D(GL_TEXTURE_2D_ARRAY, reference_n_levels, reference_to_internalformat, reference_to_width,
reference_to_height, reference_to_depth);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage3D() call failed");
/* Set up immutable texture storage for two-dimensional array texture object, base
* level of which uses a resolution of 32x33. We'll need it to check case r) */
gl.bindTexture(GL_TEXTURE_2D_ARRAY, m_reference_immutable_to_2d_array_32_by_33_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
gl.texStorage3D(GL_TEXTURE_2D_ARRAY, reference_n_levels, reference_to_internalformat, 32, /* width */
33, /* height */
6); /* depth - 6 layers so that a cube-map/cube-map array view can be created from this texture */
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage3D() call failed");
/* Set up immutable texture storage for two-dimensional multisample texture object */
gl.bindTexture(GL_TEXTURE_2D_MULTISAMPLE, m_reference_immutable_to_2d_multisample_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
gl.texStorage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, gl_max_samples_value, reference_to_internalformat,
reference_to_width, reference_to_height, GL_TRUE); /* fixedsamplelocations */
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2DMultisample() call failed");
/* Set up immutable texture storage for three-dimensional texture object */
gl.bindTexture(GL_TEXTURE_3D, m_reference_immutable_to_3d_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
gl.texStorage3D(GL_TEXTURE_3D, reference_n_levels, reference_to_internalformat, reference_to_width,
reference_to_height, reference_to_depth);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage3D() call failed");
/* Set up immutable texture storage for cube-map texture object */
gl.bindTexture(GL_TEXTURE_CUBE_MAP, m_reference_immutable_to_cube_map_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
gl.texStorage2D(GL_TEXTURE_CUBE_MAP, reference_n_levels, reference_to_internalformat, reference_to_width,
reference_to_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed");
/* Set up immutable texture storage for cube-map array texture object */
gl.bindTexture(GL_TEXTURE_CUBE_MAP_ARRAY, m_reference_immutable_to_cube_map_array_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
gl.texStorage3D(GL_TEXTURE_CUBE_MAP_ARRAY, reference_n_levels, reference_to_internalformat, reference_to_width,
reference_to_height, 6 /* layer-faces */ * reference_to_depth);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed");
/* Set up immutable texture storage for rectangular texture object */
gl.bindTexture(GL_TEXTURE_RECTANGLE, m_reference_immutable_to_rectangle_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
gl.texStorage2D(GL_TEXTURE_RECTANGLE, reference_n_levels, reference_to_internalformat, reference_to_width,
reference_to_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed");
/* Set up mutable texture storage for two-dimensional texture object */
gl.bindTexture(GL_TEXTURE_2D, m_reference_mutable_to_2d_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
for (glw::GLint n_level = 0; n_level < reference_n_levels; ++n_level)
{
gl.texImage2D(GL_TEXTURE_2D, n_level, reference_to_internalformat, reference_to_width << n_level,
reference_to_height << n_level, 0, /* border */
reference_to_format, reference_to_type, DE_NULL); /* pixels */
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexImage2D() call failed");
}
/* Create texture objects we'll be attempting to define as texture views */
gl.genTextures(1, &m_view_bound_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call failed");
gl.genTextures(1, &m_view_never_bound_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call failed");
gl.bindTexture(GL_TEXTURE_2D, m_view_bound_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
/* a) GL_INVALID_VALUE should be generated if <texture> is 0. */
glw::GLint error_code = GL_NO_ERROR;
gl.textureView(0, /* texture */
GL_TEXTURE_2D, m_reference_immutable_to_2d_id, reference_to_internalformat, 0, /* minlevel */
reference_n_levels, 0, /* minlayer */
1); /* numlayers */
error_code = gl.getError();
if (error_code != GL_INVALID_VALUE)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <texture> argument of 0"
" to a glTextureView(), whereas GL_INVALID_VALUE was "
"expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_VALUE not generated when passing 0 as <texture> argument to a "
"glTextureView() call.");
}
/* b) GL_INVALID_OPERATION should be generated if <texture> is not
* a valid name returned by glGenTextures().
*/
const glw::GLint invalid_to_id = 0xFFFFFFFF;
gl.textureView(invalid_to_id, GL_TEXTURE_2D, m_reference_immutable_to_2d_id, reference_to_internalformat,
0, /* minlevel */
reference_n_levels, 0, /* minlayer */
1); /* numlayers */
error_code = gl.getError();
if (error_code != GL_INVALID_OPERATION)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <texture> argument of"
" value that does not correspond to a valid texture "
"object ID, whereas GL_INVALID_OPERATION was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_OPERATION not generated when passing 0xFFFFFFFF as <texture> "
"argument to a glTextureView() call.");
}
/* c) GL_INVALID_OPERATION should be generated if <texture> has
* already been bound and given a target.
*/
gl.textureView(m_view_bound_to_id, GL_TEXTURE_2D, m_reference_immutable_to_2d_id, reference_to_internalformat,
0, /* minlevel */
reference_n_levels, 0, /* minlayer */
1); /* numlayers */
error_code = gl.getError();
if (error_code != GL_INVALID_OPERATION)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <texture> argument "
" that refers to an ID of a texture object that has "
"already been bound to a texture target, whereas "
"GL_INVALID_OPERATION was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_OPERATION not generated when passing <texture> set"
" to an ID of a texture object, that has already been bound to"
" a texture target, to a glTextureView() call.");
}
/* d) GL_INVALID_VALUE should be generated if <origtexture> is not
* the name of a texture object.
*/
gl.textureView(m_view_never_bound_to_id, GL_TEXTURE_2D, invalid_to_id, reference_to_internalformat,
0, /* minlevel */
reference_n_levels, 0, /* minlayer */
1); /* numlayers */
error_code = gl.getError();
if (error_code != GL_INVALID_VALUE)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <origtexture> argument "
" of value 0xFFFFFFFF, whereas GL_INVALID_VALUE was "
"expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_VALUE not generated when passing an invalid ID of a texture "
"object to <origtexture> argument.");
}
/* e) GL_INVALID_OPERATION error should be generated if <origtexture>
* is a mutable texture object.
*/
gl.textureView(m_view_never_bound_to_id, GL_TEXTURE_2D, m_reference_mutable_to_2d_id, reference_to_internalformat,
0, /* minlevel */
reference_n_levels, 0, /* minlayer */
1); /* numlayers */
error_code = gl.getError();
if (error_code != GL_INVALID_OPERATION)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <origtexture> argument "
" set to refer to a mutable texture object, whereas "
"GL_INVALID_OPERATION was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_OPERATION not generated when passing an ID of a mutable "
"texture object through <origtexture> argument.");
}
/* f) GL_INVALID_OPERATION error should be generated whenever the
* application tries to generate a texture view for a target
* that is incompatible with original texture's target. (as per
* table 8.20 from OpenGL 4.3 specification)
*
* NOTE: All invalid original+view texture target combinations
* should be checked.
*/
TextureViewUtilities::_incompatible_texture_target_pairs incompatible_texture_target_pairs =
TextureViewUtilities::getIllegalTextureAndViewTargetCombinations();
for (TextureViewUtilities::_incompatible_texture_target_pairs_const_iterator pair_iterator =
incompatible_texture_target_pairs.begin();
pair_iterator != incompatible_texture_target_pairs.end(); pair_iterator++)
{
TextureViewUtilities::_internalformat_pair texture_target_pair = *pair_iterator;
glw::GLenum original_texture_target = texture_target_pair.first;
glw::GLenum view_texture_target = texture_target_pair.second;
/* Generate texture IDs */
gl.genTextures(1, &m_test_modified_to_id_1);
gl.genTextures(1, &m_test_modified_to_id_2);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call(s) failed");
/* Configure reference texture object storage */
gl.bindTexture(original_texture_target, m_test_modified_to_id_1);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
TextureViewUtilities::initTextureStorage(gl, true, /* create mutable parent texture */
original_texture_target, reference_to_depth, reference_to_height,
reference_to_width, GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE,
reference_n_levels, reference_n_cubemaps, reference_bo_id);
/* Attempt to create the invalid view */
gl.textureView(m_test_modified_to_id_2, /* texture */
view_texture_target, m_test_modified_to_id_1, /* origtexture */
reference_to_internalformat, 0, /* minlevel */
reference_n_levels, 0, /* minlayer */
1); /* numlayers */
error_code = gl.getError();
if (error_code != GL_INVALID_OPERATION)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <origtexture> argument "
" set to refer to a mutable texture object, whereas "
"GL_INVALID_OPERATION was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_OPERATION not generated when passing an ID of a mutable "
"texture object through <origtexture> argument.");
}
/* Release the texture IDs */
gl.deleteTextures(1, &m_test_modified_to_id_1);
m_test_modified_to_id_1 = 0;
gl.deleteTextures(1, &m_test_modified_to_id_2);
m_test_modified_to_id_2 = 0;
GLU_EXPECT_NO_ERROR(gl.getError(), "glDeleteTextures() call(s) failed");
} /* for (all incompatible texture target pairs) */
/* g) GL_INVALID_OPERATION error should be generated whenever the
* application tries to create a texture view, internal format
* of which can be found in table 8.21 of OpenGL 4.4
* specification, and the texture view's internal format is
* incompatible with parent object's internal format. Both
* textures and views should be used as parent objects for the
* purpose of the test.
*
* NOTE: All invalid texture view internal formats should be
* checked for all applicable original object's internal
* formats
*/
glw::GLint context_major_version = 0;
glw::GLint context_minor_version = 0;
TextureViewUtilities::getMajorMinorVersionFromContextVersion(m_context.getRenderContext().getType(),
&context_major_version, &context_minor_version);
TextureViewUtilities::_incompatible_internalformat_pairs internalformat_pairs =
TextureViewUtilities::getIllegalTextureAndViewInternalformatCombinations();
for (TextureViewUtilities::_incompatible_internalformat_pairs::const_iterator pair_iterator =
internalformat_pairs.begin();
pair_iterator != internalformat_pairs.end(); pair_iterator++)
{
glw::GLenum src_internalformat = pair_iterator->first;
glw::GLenum view_internalformat = pair_iterator->second;
/* Only run the test for internalformats supported by the tested OpenGL implementation */
if (!TextureViewUtilities::isInternalformatSupported(src_internalformat, context_major_version,
context_minor_version) ||
!TextureViewUtilities::isInternalformatSupported(view_internalformat, context_major_version,
context_minor_version))
{
/* Next iteration, please */
continue;
}
/* Generate texture IDs */
gl.genTextures(1, &m_test_modified_to_id_1);
gl.genTextures(1, &m_test_modified_to_id_2);
gl.genTextures(1, &m_test_modified_to_id_3);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call(s) failed");
/* Configure reference texture object storage */
gl.bindTexture(GL_TEXTURE_2D, m_test_modified_to_id_1);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
TextureViewUtilities::initTextureStorage(
gl, false, /* views require immutable parent texture objects */
GL_TEXTURE_2D, 0, /* texture_depth */
reference_to_height, reference_to_width, src_internalformat,
GL_NONE, /* texture_format - not needed for immutable texture objects */
GL_NONE, /* texture_type - not needed for immutable texture objects */
reference_n_levels, 0, /* n_cubemaps_needed */
0); /* bo_id */
/* Attempt to create an invalid view */
gl.textureView(m_test_modified_to_id_2, /* texture */
GL_TEXTURE_2D, m_test_modified_to_id_1, /* origtexture */
view_internalformat, 0, /* minlevel */
reference_n_levels, 0, /* minlayer */
1); /* numlayers */
error_code = gl.getError();
if (error_code != GL_INVALID_OPERATION)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when requesting a view that uses "
" an internalformat that is incompatible with parent "
" texture object's, whereas GL_INVALID_OPERATION was "
"expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_OPERATION not generated when requesting a texture view that "
"uses an internalformat which is incompatible with parent texture's.");
}
/* Create a valid view now */
gl.textureView(m_test_modified_to_id_2, /* texture */
GL_TEXTURE_2D, m_test_modified_to_id_1, /* origtexture */
src_internalformat, 0, /* minlevel */
reference_n_levels, 0, /* minlayer */
1); /* numlayers */
GLU_EXPECT_NO_ERROR(gl.getError(), "A valid glTextureView() call failed");
/* Attempt to create an invalid view, using the view we've just created
* as a parent */
gl.textureView(m_test_modified_to_id_3, /* texture */
GL_TEXTURE_2D, m_test_modified_to_id_2, /* origtexture */
view_internalformat, 0, /* minlevel */
reference_n_levels, 0, /* minlayer */
1); /* numlayers */
error_code = gl.getError();
if (error_code != GL_INVALID_OPERATION)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when requesting a view that uses "
" an internalformat that is incompatible with parent "
" view's, whereas GL_INVALID_OPERATION was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_OPERATION not generated when requesting a texture view that "
"uses an internalformat which is incompatible with parent view's.");
}
/* Release the texture IDs */
gl.deleteTextures(1, &m_test_modified_to_id_1);
m_test_modified_to_id_1 = 0;
gl.deleteTextures(1, &m_test_modified_to_id_2);
m_test_modified_to_id_2 = 0;
gl.deleteTextures(1, &m_test_modified_to_id_3);
m_test_modified_to_id_3 = 0;
GLU_EXPECT_NO_ERROR(gl.getError(), "glDeleteTextures() call(s) failed");
} /* for (all incompatible texture+view internalformat pairs) */
/* h) GL_INVALID_OPERATION error should be generated whenever the
* application tries to create a texture view using an internal
* format that does not match the original texture's, and the
* original texture's internalformat cannot be found in table
* 8.21 of OpenGL 4.3 specification.
*
* NOTE: All required base, sized and compressed texture internal
* formats (as described in section 8.5.1 and table 8.14
* of OpenGL 4.3 specification) that cannot be found in
* table 8.21 should be considered for the purpose of this
* test.
*/
for (int n_gl_internalformat = 0; n_gl_internalformat < n_valid_gl_internalformats; ++n_gl_internalformat)
{
glw::GLenum parent_texture_internalformat = valid_gl_internalformats[n_gl_internalformat];
/* Only run the test for internalformats supported by the tested OpenGL implementation */
if (!TextureViewUtilities::isInternalformatSupported(parent_texture_internalformat, context_major_version,
context_minor_version))
{
/* Iterate the loop */
continue;
}
/* For the purpose of the test, only consider internalformats that
* are not associated with any view class */
if (TextureViewUtilities::getViewClassForInternalformat(parent_texture_internalformat) == VIEW_CLASS_UNDEFINED)
{
/* Initialize parent texture object */
gl.genTextures(1, &m_test_modified_to_id_1);
gl.genTextures(1, &m_test_modified_to_id_2);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call(s) failed");
/* Configure reference texture object storage */
gl.bindTexture(GL_TEXTURE_2D, m_test_modified_to_id_1);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
TextureViewUtilities::initTextureStorage(
gl, false, /* views require immutable parent texture objects */
GL_TEXTURE_2D, 0, /* texture_depth */
reference_to_height, reference_to_width, parent_texture_internalformat,
GL_NONE, /* texture_format - not needed for immutable texture objects */
GL_NONE, /* texture_type - not needed for immutable texture objects */
reference_n_levels, 0, /* n_cubemaps_needed */
0); /* bo_id */
/* Attempt to create the invalid view */
gl.textureView(m_test_modified_to_id_2, /* texture */
GL_TEXTURE_2D, m_test_modified_to_id_1, /* origtexture */
(parent_texture_internalformat != GL_RGBA32F) ? GL_RGBA32F : GL_RGB32F, 0, /* minlevel */
reference_n_levels, 0, /* minlayer */
1); /* numlayers */
error_code = gl.getError();
if (error_code != GL_INVALID_OPERATION)
{
m_testCtx.getLog() << tcu::TestLog::Message << "["
<< TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when requesting a view that uses "
" an internalformat different than the one used by "
"parent texture object: "
"["
<< parent_texture_internalformat
<< "] "
" and the parent texture's internalformat is not "
"associated with any view class; GL_INVALID_OPERATION "
"was expected"
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_OPERATION not generated when requesting a texture view for "
"a parent texture, internalformat of which is not associated with any "
"view class, when the view's internalformat is different than the one "
"used for parent texture.");
}
/* Release the texture IDs */
gl.deleteTextures(1, &m_test_modified_to_id_1);
m_test_modified_to_id_1 = 0;
gl.deleteTextures(1, &m_test_modified_to_id_2);
m_test_modified_to_id_2 = 0;
GLU_EXPECT_NO_ERROR(gl.getError(), "glDeleteTextures() call(s) failed");
} /* if (parent texture internalformat is not associated with a view class) */
} /* for (all valid GL internalformats) */
/* i) GL_INVALID_VALUE error should be generated if <minlevel> is
* larger than the greatest level of <origtexture>.
*/
gl.textureView(m_view_never_bound_to_id, GL_TEXTURE_2D, m_reference_immutable_to_2d_id, reference_to_internalformat,
reference_n_levels, /* minlevel */
1, /* numlevels */
0, /* minlayer */
1); /* numlayers */
error_code = gl.getError();
if (error_code != GL_INVALID_VALUE)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <minlevel> argument "
" larger than the greatest level of <origtexture>, whereas "
"GL_INVALID_VALUE was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_VALUE not generated when passing a value of <minlevel> "
"larger than the greatest level defined for <origtexture>");
}
/* j) GL_INVALID_VALUE error should be generated if <minlayer> is
* larger than the greatest layer of <origtexture>.
*/
gl.textureView(m_view_never_bound_to_id, GL_TEXTURE_2D_ARRAY, m_reference_immutable_to_2d_array_id,
reference_to_internalformat, 0, /* minlevel */
reference_n_levels, /* numlevels */
reference_to_depth, /* minlayer */
1); /* numlayers */
error_code = gl.getError();
if (error_code != GL_INVALID_VALUE)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <minlayer> argument "
" larger than the greatest layer of <origtexture>, whereas "
"GL_INVALID_VALUE was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_VALUE not generated when passing a value of <minlayer> "
"larger than the greatest layer defined for <origtexture>");
}
/* k) GL_INVALID_VALUE error should be generated if <target> is
* GL_TEXTURE_CUBE_MAP and <numlayers> is not 6.
*/
gl.textureView(m_view_never_bound_to_id, GL_TEXTURE_CUBE_MAP, m_reference_immutable_to_cube_map_id,
reference_to_internalformat, 0, /* minlevel */
1, /* numlevels */
0, /* minlayer */
5); /* numlayers - invalid argument value */
error_code = gl.getError();
if (error_code != GL_INVALID_VALUE)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <numlayers> argument of value "
"5 instead of 6 for GL_TEXTURE_CUBE_MAP texture target, whereas "
"GL_INVALID_VALUE was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_VALUE not generated when passing a value of 5 to <minlayer>"
"argument");
}
/* l) GL_INVALID_VALUE error should be generated if <target> is
* GL_TEXTURE_CUBE_MAP_ARRAY and <numlayers> is not a multiple
* of 6.
*/
gl.textureView(m_view_never_bound_to_id, GL_TEXTURE_CUBE_MAP_ARRAY, m_reference_immutable_to_cube_map_array_id,
reference_to_internalformat, 0, /* minlevel */
1, /* numlevels */
0, /* minlayer */
1); /* numlayers - invalid argument value */
error_code = gl.getError();
if (error_code != GL_INVALID_VALUE)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <numlayers> argument of value "
"1 instead of a multiple of 6 for GL_TEXTURE_CUBE_MAP_ARRAY "
"texture target, whereas GL_INVALID_VALUE was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_VALUE not generated when passing a value of 1 to <minlayer>"
"argument for a GL_TEXTURE_CUBE_MAP_ARRAY texture target");
}
/* m) GL_INVALID_VALUE error should be generated if <target> is
* GL_TEXTURE_1D and <numlayers> is not 1;
*/
gl.textureView(m_view_never_bound_to_id, GL_TEXTURE_1D, m_reference_immutable_to_1d_id, reference_to_internalformat,
0, /* minlevel */
1, /* numlevels */
0, /* minlayer */
2); /* numlayers - invalid argument value */
error_code = gl.getError();
if (error_code != GL_INVALID_VALUE)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <numlayers> argument of value "
"2 instead of 1 for GL_TEXTURE_1D texture target, whereas "
"GL_INVALID_VALUE was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_VALUE not generated when passing a value of 2 to <numlayers>"
"argument for a GL_TEXTURE_1D texture target");
}
/* n) GL_INVALID_VALUE error should be generated if <target> is
* GL_TEXTURE_2D and <numlayers> is not 1;
*/
gl.textureView(m_view_never_bound_to_id, GL_TEXTURE_2D, m_reference_immutable_to_2d_id, reference_to_internalformat,
0, /* minlevel */
1, /* numlevels */
0, /* minlayer */
2); /* numlayers - invalid argument value */
error_code = gl.getError();
if (error_code != GL_INVALID_VALUE)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <numlayers> argument of value "
"2 instead of 1 for GL_TEXTURE_2D texture target, whereas "
"GL_INVALID_VALUE was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_VALUE not generated when passing a value of 2 to <numlayers>"
"argument for a GL_TEXTURE_2D texture target");
}
/* o) GL_INVALID_VALUE error should be generated if <target> is
* GL_TEXTURE_3D and <numlayers> is not 1;
*/
gl.textureView(m_view_never_bound_to_id, GL_TEXTURE_3D, m_reference_immutable_to_3d_id, reference_to_internalformat,
0, /* minlevel */
1, /* numlevels */
0, /* minlayer */
2); /* numlayers - invalid argument value */
error_code = gl.getError();
if (error_code != GL_INVALID_VALUE)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <numlayers> argument of value "
"2 instead of 1 for GL_TEXTURE_3D texture target, whereas "
"GL_INVALID_VALUE was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_VALUE not generated when passing a value of 2 to <numlayers>"
"argument for a GL_TEXTURE_3D texture target");
}
/* p) GL_INVALID_VALUE error should be generated if <target> is
* GL_TEXTURE_RECTANGLE and <numlayers> is not 1;
*/
gl.textureView(m_view_never_bound_to_id, GL_TEXTURE_RECTANGLE, m_reference_immutable_to_rectangle_id,
reference_to_internalformat, 0, /* minlevel */
1, /* numlevels */
0, /* minlayer */
2); /* numlayers - invalid argument value */
error_code = gl.getError();
if (error_code != GL_INVALID_VALUE)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <numlayers> argument of value "
"2 instead of 1 for GL_TEXTURE_RECTANGLE texture target, whereas "
"GL_INVALID_VALUE was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_VALUE not generated when passing a value of 2 to <numlayers>"
"argument for a GL_TEXTURE_RECTANGLE texture target");
}
/* q) GL_INVALID_VALUE error should be generated if <target> is
* GL_TEXTURE_2D_MULTISAMPLE and <numlayers> is not 1;
*/
gl.textureView(m_view_never_bound_to_id, GL_TEXTURE_2D_MULTISAMPLE, m_reference_immutable_to_2d_multisample_id,
reference_to_internalformat, 0, /* minlevel */
1, /* numlevels */
0, /* minlayer */
2); /* numlayers - invalid argument value */
error_code = gl.getError();
if (error_code != GL_INVALID_VALUE)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when passing <numlayers> argument of value "
"2 instead of 1 for GL_TEXTURE_2D_MULTISAMPLE texture target, whereas "
"GL_INVALID_VALUE was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_VALUE not generated when passing a value of 2 to <numlayers>"
"argument for a GL_TEXTURE_2D_MULTISAMPLE texture target");
}
/* r) GL_INVALID_OPERATION error should be generated if <target> is
* GL_TEXTURE_CUBE_MAP and original texture's width does not
* match original texture's height for all levels.
*/
gl.textureView(m_view_never_bound_to_id, GL_TEXTURE_CUBE_MAP, m_reference_immutable_to_2d_array_32_by_33_id,
reference_to_internalformat, 0, /* minlevel */
1, /* numlevels */
0, /* minlayer */
6); /* numlayers */
error_code = gl.getError();
if (error_code != GL_INVALID_OPERATION)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when using an immutable 2D array texture of 32x33x6 "
"resolution to generate a GL_TEXTURE_CUBE_MAP view, whereas "
"GL_INVALID_OPERATION was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_OPERATION not generated when using an immutable 2D array texture of "
"32x33x6 resolution to generate a GL_TEXTURE_CUBE_MAP view");
}
/* s) GL_INVALID_OPERATION error should be generated if <target> is
* GL_TEXTURE_CUBE_MAP_ARRAY and original texture's width does
* not match original texture's height for all levels.
*/
gl.textureView(m_view_never_bound_to_id, GL_TEXTURE_CUBE_MAP_ARRAY, m_reference_immutable_to_2d_array_32_by_33_id,
reference_to_internalformat, 0, /* minlevel */
1, /* numlevels */
0, /* minlayer */
6); /* numlayers */
error_code = gl.getError();
if (error_code != GL_INVALID_OPERATION)
{
m_testCtx.getLog() << tcu::TestLog::Message << "[" << TextureViewUtilities::getErrorCodeString(error_code)
<< "]"
" error generated when using an immutable 2D array texture of 32x33x6 "
"resolution to generate a GL_TEXTURE_CUBE_MAP_ARRAY view, whereas "
"GL_INVALID_OPERATION was expected."
<< tcu::TestLog::EndMessage;
TCU_FAIL("GL_INVALID_OPERATION not generated when using an immutable 2D array texture of "
"32x33x6 resolution to generate a GL_TEXTURE_CUBE_MAP_ARRAY view");
}
/* Test case passed */
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
/** Constructor.
*
* @param context Rendering context.
**/
TextureViewTestViewSampling::TextureViewTestViewSampling(deqp::Context& context)
: TestCase(context, "view_sampling", "Verify that sampling data from texture views, that use internal "
"format which is compatible with the original texture's internal "
"format, works correctly.")
, m_bo_id(0)
, m_fs_id(0)
, m_gs_id(0)
, m_po_id(0)
, m_po_lod_location(-1)
, m_po_n_face_location(-1)
, m_po_reference_colors_location(-1)
, m_po_texture_location(-1)
, m_po_z_float_location(-1)
, m_po_z_int_location(-1)
, m_tc_id(0)
, m_te_id(0)
, m_vs_id(0)
, m_per_sample_filler_fs_id(0)
, m_per_sample_filler_gs_id(0)
, m_per_sample_filler_po_id(0)
, m_per_sample_filler_po_layer_id_location(-1)
, m_per_sample_filler_po_reference_colors_location(-1)
, m_per_sample_filler_vs_id(0)
, m_result_to_id(0)
, m_to_id(0)
, m_view_to_id(0)
, m_fbo_id(0)
, m_vao_id(0)
, m_max_color_texture_samples_gl_value(0)
, m_iteration_parent_texture_depth(0)
, m_iteration_parent_texture_height(0)
, m_iteration_parent_texture_n_levels(0)
, m_iteration_parent_texture_n_samples(0)
, m_iteration_parent_texture_target(GL_NONE)
, m_iteration_parent_texture_width(0)
, m_iteration_view_texture_minlayer(0)
, m_iteration_view_texture_numlayers(0)
, m_iteration_view_texture_minlevel(0)
, m_iteration_view_texture_numlevels(0)
, m_iteration_view_texture_target(GL_NONE)
, m_reference_texture_depth(4)
, m_reference_texture_height(4)
, m_reference_texture_n_mipmaps(3)
, m_reference_texture_width(4)
, m_reference_color_storage(DE_NULL)
, m_result_data(DE_NULL)
{
/* Left blank on purpose */
}
/** De-initializes all GL objects created for the test. */
void TextureViewTestViewSampling::deinit()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
deinitIterationSpecificProgramAndShaderObjects();
deinitPerSampleFillerProgramAndShaderObjects();
deinitTextureObjects();
/* Make sure any buffers we may have allocated during the execution do not leak */
if (m_result_data != DE_NULL)
{
delete[] m_result_data;
m_result_data = DE_NULL;
}
/* Deinitialize other objects that are not re-created every iteration */
if (m_bo_id != 0)
{
gl.deleteBuffers(1, &m_bo_id);
m_bo_id = 0;
}
if (m_fbo_id != 0)
{
gl.deleteFramebuffers(1, &m_fbo_id);
m_fbo_id = 0;
}
if (m_reference_color_storage != DE_NULL)
{
delete m_reference_color_storage;
m_reference_color_storage = DE_NULL;
}
if (m_vao_id != 0)
{
gl.deleteVertexArrays(1, &m_vao_id);
m_vao_id = 0;
}
/* Restore default GL state the test may have modified */
gl.patchParameteri(GL_PATCH_VERTICES, 3);
gl.pixelStorei(GL_PACK_ALIGNMENT, 4);
gl.pixelStorei(GL_UNPACK_ALIGNMENT, 4);
}
/** De-initializes program and shader objects created for each iteration. **/
void TextureViewTestViewSampling::deinitIterationSpecificProgramAndShaderObjects()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
if (m_fs_id != 0)
{
gl.deleteShader(m_fs_id);
m_fs_id = 0;
}
if (m_gs_id != 0)
{
gl.deleteShader(m_gs_id);
m_gs_id = 0;
}
if (m_po_id != 0)
{
gl.deleteProgram(m_po_id);
m_po_id = 0;
}
if (m_tc_id != 0)
{
gl.deleteShader(m_tc_id);
m_tc_id = 0;
}
if (m_te_id != 0)
{
gl.deleteShader(m_te_id);
m_te_id = 0;
}
if (m_vs_id != 0)
{
gl.deleteShader(m_vs_id);
m_vs_id = 0;
}
}
/** De-initializes shader and program objects providing the 'per-sample filling'
* functionality.
**/
void TextureViewTestViewSampling::deinitPerSampleFillerProgramAndShaderObjects()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
if (m_per_sample_filler_fs_id != 0)
{
gl.deleteShader(m_per_sample_filler_fs_id);
m_per_sample_filler_fs_id = 0;
}
if (m_per_sample_filler_gs_id != 0)
{
gl.deleteShader(m_per_sample_filler_gs_id);
m_per_sample_filler_gs_id = 0;
}
if (m_per_sample_filler_po_id != 0)
{
gl.deleteProgram(m_per_sample_filler_po_id);
m_per_sample_filler_po_id = 0;
}
if (m_per_sample_filler_vs_id != 0)
{
gl.deleteShader(m_per_sample_filler_vs_id);
m_per_sample_filler_vs_id = 0;
}
}
/** De-initializes texture objects used by the test */
void TextureViewTestViewSampling::deinitTextureObjects()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
if (m_result_to_id != 0)
{
gl.deleteTextures(1, &m_result_to_id);
m_result_to_id = 0;
}
if (m_to_id != 0)
{
gl.deleteTextures(1, &m_to_id);
m_to_id = 0;
}
if (m_view_to_id != 0)
{
gl.deleteTextures(1, &m_view_to_id);
m_view_to_id = 0;
}
}
/** Executes a single test iteration.
*
* @return true if the iteration executed successfully, false otherwise.
**/
bool TextureViewTestViewSampling::executeTest()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
bool result = true;
/* Bind the view to zero texture unit */
gl.activeTexture(GL_TEXTURE0);
GLU_EXPECT_NO_ERROR(gl.getError(), "glActiveTexture() call failed.");
gl.bindTexture(m_iteration_view_texture_target, m_view_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
/* Bind the buffer object to zero TF binding point */
gl.bindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0 /* index */, m_bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBufferBase() call failed.");
/* Activate the test program */
gl.useProgram(m_po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram() call failed.");
/* Update draw framebuffer configuration so that the test's fragment shader draws
* to the result texture */
gl.bindFramebuffer(GL_FRAMEBUFFER, m_fbo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindFramebuffer() call failed.");
gl.framebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_result_to_id, 0); /* level */
GLU_EXPECT_NO_ERROR(gl.getError(), "glFramebufferTexture2D() call failed.");
/* Allocate enough space to hold reference color data for all sample s*/
float* reference_color_data = new float[m_iteration_parent_texture_n_samples * sizeof(float) * 4 /* rgba */];
/* Iterate through the layer/face/mipmap hierarchy. For each iteration, we
* potentially need to update relevant uniforms controlling the sampling process
* the test program object performs.
*/
bool is_view_cm_cma = (m_iteration_view_texture_target == GL_TEXTURE_CUBE_MAP ||
m_iteration_view_texture_target == GL_TEXTURE_CUBE_MAP_ARRAY);
for (unsigned int n_current_layer = m_iteration_view_texture_minlayer;
n_current_layer < (m_iteration_view_texture_minlayer + m_iteration_view_texture_numlayers) && result;
n_current_layer++)
{
unsigned int n_texture_face = 0;
unsigned int n_texture_layer = 0;
unsigned int n_view_face = 0;
unsigned int n_view_layer = 0;
if (is_view_cm_cma)
{
n_texture_face = n_current_layer % 6; /* faces */
n_texture_layer = n_current_layer / 6; /* faces */
n_view_face = (n_current_layer - m_iteration_view_texture_minlayer) % 6; /* faces */
n_view_layer = (n_current_layer - m_iteration_view_texture_minlayer) / 6; /* faces */
}
else
{
/* Only cube-map and cube-map array textures consist of faces. */
n_texture_face = 0;
n_texture_layer = n_current_layer;
n_view_face = 0;
n_view_layer = n_current_layer;
}
if (m_po_z_float_location != -1)
{
float z = 0.0f;
if (((false == is_view_cm_cma) && (m_iteration_view_texture_numlayers > 1)) ||
((true == is_view_cm_cma) && (m_iteration_view_texture_numlayers > 6)))
{
if (is_view_cm_cma)
{
z = float(n_view_layer) / float(m_iteration_view_texture_numlayers / 6 - 1);
}
else
{
if (m_iteration_view_texture_numlayers > 1)
{
/* The program will be sampling a view so make sure that layer the shader accesses
* is relative to how our view was configured */
z = float(n_view_layer - m_iteration_view_texture_minlayer) /
float(m_iteration_view_texture_numlayers - 1);
}
else
{
/* z should stay at 0 */
}
}
}
else
{
/* z should stay at 0.0 */
}
gl.uniform1f(m_po_z_float_location, z);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1f() call failed.");
}
if (m_po_z_int_location != -1)
{
DE_ASSERT(!is_view_cm_cma);
gl.uniform1i(m_po_z_int_location, n_current_layer - m_iteration_view_texture_minlayer);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i() call failed.");
}
if (m_po_n_face_location != -1)
{
gl.uniform1i(m_po_n_face_location, n_view_face);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i() call failed.");
}
for (unsigned int n_mipmap = m_iteration_view_texture_minlevel;
n_mipmap < (m_iteration_view_texture_minlevel + m_iteration_view_texture_numlevels) && result; n_mipmap++)
{
if (m_po_lod_location != -1)
{
/* The program will be sampling a view so make sure that LOD the shader accesses
* is relative to how our view was configured.
*/
gl.uniform1f(m_po_lod_location, (float)(n_mipmap - m_iteration_view_texture_minlevel));
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i() call failed.");
}
/* Update local reference color data storage */
for (unsigned int n_sample = 0; n_sample < m_iteration_parent_texture_n_samples; ++n_sample)
{
tcu::Vec4 reference_color = getReferenceColor(n_texture_layer, n_texture_face, n_mipmap, n_sample);
reference_color_data[4 /* rgba */ * n_sample + 0] = reference_color.x();
reference_color_data[4 /* rgba */ * n_sample + 1] = reference_color.y();
reference_color_data[4 /* rgba */ * n_sample + 2] = reference_color.z();
reference_color_data[4 /* rgba */ * n_sample + 3] = reference_color.w();
}
/* Upload it to GPU */
gl.uniform4fv(m_po_reference_colors_location, m_iteration_parent_texture_n_samples, reference_color_data);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform4fv() call failed.");
/* Bind the texture view to sample from */
gl.bindTexture(m_iteration_view_texture_target, m_view_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
/* Draw a single patch. Given the rendering pipeline we've defined in the
* test program object, this should give us a nice full-screen quad, as well
* as 6*4 ints XFBed out, describing whether the view was sampled correctly.
*/
gl.beginTransformFeedback(GL_TRIANGLES);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBeginTransformFeedback() call failed.");
{
gl.drawArrays(GL_PATCHES, 0 /* first */, 1 /* count */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDrawArrays() call failed.");
}
gl.endTransformFeedback();
GLU_EXPECT_NO_ERROR(gl.getError(), "glEndTransformFeedback() call failed.");
/* In order to verify if the texel data was sampled correctly, we need to do two things:
*
* 1) Verify buffer object contents;
* 2) Make sure that all texels of current render-target are vec4(1).
*
*/
const int* bo_storage_ptr = (const int*)gl.mapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, GL_READ_ONLY);
GLU_EXPECT_NO_ERROR(gl.getError(), "glMapBuffer() call failed.");
if (bo_storage_ptr == NULL)
{
TCU_FAIL("glMapBuffer() call succeeded but the pointer returned is NULL");
}
/* The rendering pipeline should have written 6 vertices * 4 ints to the BO.
* The integers are set to 1 if the sampled texels were found valid, 0 otherwise,
* and are arranged in the following order:
*
* 1) Result of sampling in vertex shader stage;
* 2) Result of sampling in tessellation control shader stage;
* 3) Result of sampling in tessellation evaluation shader stage;
* 4) Result of sampling in geometry shader stage;
*/
for (unsigned int n_vertex = 0; n_vertex < 6 /* as per comment */ && result; ++n_vertex)
{
const int* vertex_data_ptr = bo_storage_ptr + n_vertex * 4 /* as per comment */;
int vs_result = vertex_data_ptr[0];
int tc_result = vertex_data_ptr[1];
int te_result = vertex_data_ptr[2];
int gs_result = vertex_data_ptr[3];
if (vs_result != 1)
{
m_testCtx.getLog() << tcu::TestLog::Message << "Invalid data was sampled in vertex shader stage."
<< tcu::TestLog::EndMessage;
result = false;
}
if (tc_result != 1)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "Invalid data was sampled in tessellation control shader stage."
<< tcu::TestLog::EndMessage;
result = false;
}
if (te_result != 1)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "Invalid data was sampled in tessellation evaluation shader stage."
<< tcu::TestLog::EndMessage;
result = false;
}
if (gs_result != 1)
{
m_testCtx.getLog() << tcu::TestLog::Message << "Invalid data was sampled in geometry shader stage."
<< tcu::TestLog::EndMessage;
result = false;
}
} /* for (all vertices) */
/* Unmap the BO */
gl.unmapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUnmapBuffer() call failed.");
/* Read texels rendered by the fragment shader. The texture attached uses
* GL_RGBA8 internalformat.*/
m_result_data = new unsigned char[m_reference_texture_width * m_reference_texture_height * 4 /* RGBA */];
gl.bindTexture(GL_TEXTURE_2D, m_result_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed for GL_TEXTURE_2D texture target.");
gl.getTexImage(GL_TEXTURE_2D, 0 /* level */, GL_RGBA, GL_UNSIGNED_BYTE, m_result_data);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetTexImage() call failed.");
/* The test fails if any of the fragments is not equal to vec4(1) */
bool fs_result = true;
for (unsigned int y = 0; y < m_reference_texture_height && fs_result; ++y)
{
const unsigned char* row_ptr = m_result_data + m_reference_texture_width * y * 4 /* RGBA */;
for (unsigned int x = 0; x < m_reference_texture_width && fs_result; ++x)
{
const unsigned char* pixel_ptr = row_ptr + x * 4 /* RGBA */;
if (pixel_ptr[0] != 255 || pixel_ptr[1] != 255 || pixel_ptr[2] != 255 || pixel_ptr[3] != 255)
{
m_testCtx.getLog() << tcu::TestLog::Message << "Invalid data was sampled at (" << x << ", " << y
<< ") "
"in fragment shader stage."
<< tcu::TestLog::EndMessage;
fs_result = false;
}
} /* for (all columns) */
} /* for (all rows) */
if (!fs_result)
{
result = false;
}
/* Done - we can release the buffer at this point */
delete[] m_result_data;
m_result_data = DE_NULL;
} /* for (all mip-maps) */
} /* for (all texture layers) */
/* Release the reference color data buffer */
delete[] reference_color_data;
reference_color_data = DE_NULL;
/* All done */
return result;
}
/** Returns a different vec4 every time the function is called. Each component
* is assigned a normalized value within <0, 1> range.
*
* @return As per description.
**/
tcu::Vec4 TextureViewTestViewSampling::getRandomReferenceColor()
{
static unsigned int seed = 195;
tcu::Vec4 result;
result = tcu::Vec4(float((seed) % 255) / 255.0f, float((seed << 3) % 255) / 255.0f,
float((seed << 4) % 255) / 255.0f, float((seed << 5) % 255) / 255.0f);
seed += 17;
return result;
}
/** Every test iteration is assigned a different set of so-called reference colors.
* Depending on the texture target, each reference color corresponds to an unique color
* used to build different layers/faces/mip-maps or even samples of tose.
*
* Once the reference color storage is initialized, this function can be used to retrieve
* details of a color allocated a specific sample of a layer/face mip-map.
*
* This function will cause an assertion failure if an invalid layer/face/mipmap/sample is
* requested, as well as if the reference color storage is not initialized at the time of the call.
*
* @param n_layer Layer index to use for the query. A value of 0 should be used for non-arrayed
* texture targets.
* @param n_face Face index to use for the query. A value of 0 should be used for non-CM texture
* targets. Otherwise:
* * 0 corresponds to +X;
* * 1 corresponds to -X;
* * 2 corresponds to +Y;
* * 3 corresponds to -Y;
* * 4 corresponds to +Z;
* * 5 corresponds to -Z.
* @param n_mipmap Mip-map index to use for the query. A value of 0 should be used for non-mipmapped
* texture targets.
* @param n_sample Sample index to use for the query. A value of 0 should be used for single-sampled
* texture targets.
*
* @return Requested color data.
**/
tcu::Vec4 TextureViewTestViewSampling::getReferenceColor(unsigned int n_layer, unsigned int n_face,
unsigned int n_mipmap, unsigned int n_sample)
{
tcu::Vec4 result;
DE_ASSERT(m_reference_color_storage != DE_NULL);
if (m_reference_color_storage != DE_NULL)
{
bool is_parent_texture_cm_cma = (m_iteration_parent_texture_target == GL_TEXTURE_CUBE_MAP ||
m_iteration_parent_texture_target == GL_TEXTURE_CUBE_MAP_ARRAY);
bool is_view_texture_cm_cma = (m_iteration_view_texture_target == GL_TEXTURE_CUBE_MAP ||
m_iteration_view_texture_target == GL_TEXTURE_CUBE_MAP_ARRAY);
if (is_view_texture_cm_cma && !is_parent_texture_cm_cma)
{
/* Parent texture is not using faces. Compute layer index, as
* if the texture was actually a CM or a CMA */
unsigned int temp = n_layer * 6 /* layer-faces per layer */ + n_face;
n_layer = temp;
n_face = 0;
}
else if (!is_view_texture_cm_cma && is_parent_texture_cm_cma)
{
/* The other way around - assume the texture is a CM or CMA */
n_face = n_layer % 6; /* faces per cube-map layer */
n_layer = n_layer / 6; /* faces per cube-map layer */
}
DE_ASSERT(n_face < m_reference_color_storage->n_faces);
DE_ASSERT(n_layer < m_reference_color_storage->n_layers);
DE_ASSERT(n_mipmap < m_reference_color_storage->n_mipmaps);
DE_ASSERT(n_sample < m_reference_color_storage->n_samples);
/* Hierarchy is:
*
* layers -> faces -> mipmaps -> samples */
const unsigned int index =
n_layer * (m_reference_color_storage->n_faces * m_reference_color_storage->n_mipmaps *
m_reference_color_storage->n_samples) +
n_face * (m_reference_color_storage->n_mipmaps * m_reference_color_storage->n_samples) +
n_mipmap * (m_reference_color_storage->n_samples) + n_sample;
result = m_reference_color_storage->data[index];
}
return result;
}
/* Retrieve max conformant sample count when GL_NV_internalformat_sample_query is supported */
glw::GLint TextureViewTestViewSampling::getMaxConformantSampleCount(glw::GLenum target, glw::GLenum internalFormat)
{
(void)internalFormat;
glw::GLint max_conformant_samples = 0;
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Return the max conformant sample count if extension is supported */
if (m_context.getContextInfo().isExtensionSupported("GL_NV_internalformat_sample_query"))
{
glw::GLint gl_sample_counts = 0;
gl.getInternalformativ(target, GL_RGBA8, GL_NUM_SAMPLE_COUNTS, 1, &gl_sample_counts);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetInternalformativ() failed for GL_NUM_SAMPLE_COUNTS pname");
/* Check and return the first conformant sample count */
glw::GLint* gl_supported_samples = new glw::GLint[gl_sample_counts];
if (gl_supported_samples)
{
gl.getInternalformativ(target, GL_RGBA8, GL_SAMPLES, gl_sample_counts, gl_supported_samples);
for (glw::GLint i = 0; i < gl_sample_counts; i++)
{
glw::GLint isConformant = 0;
gl.getInternalformatSampleivNV(target, GL_RGBA8, gl_supported_samples[i], GL_CONFORMANT_NV, 1,
&isConformant);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetInternalformatSampleivNV() call(s) failed");
if (isConformant && gl_supported_samples[i] > max_conformant_samples)
{
max_conformant_samples = gl_supported_samples[i];
}
}
delete[] gl_supported_samples;
}
}
else
{
/* Otherwise return GL_MAX_COLOR_TEXTURE_SAMPLES */
gl.getIntegerv(GL_MAX_COLOR_TEXTURE_SAMPLES, &max_conformant_samples);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetIntegerv() call failed for GL_MAX_COLOR_TEXTURE_SAMPLES pname.");
}
return max_conformant_samples;
}
/** Initializes iteration-specific program object used to sample the texture data. */
void TextureViewTestViewSampling::initIterationSpecificProgramObject()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Release shader/program objects that may have been initialized in previous
* iterations.
*/
deinitIterationSpecificProgramAndShaderObjects();
/* Create program and shader objects */
m_fs_id = gl.createShader(GL_FRAGMENT_SHADER);
m_gs_id = gl.createShader(GL_GEOMETRY_SHADER);
m_tc_id = gl.createShader(GL_TESS_CONTROL_SHADER);
m_te_id = gl.createShader(GL_TESS_EVALUATION_SHADER);
m_vs_id = gl.createShader(GL_VERTEX_SHADER);
GLU_EXPECT_NO_ERROR(gl.getError(), "glCreateShader() call(s) failed.");
m_po_id = gl.createProgram();
GLU_EXPECT_NO_ERROR(gl.getError(), "glCreateProgram() call(s) failed.");
/* Prepare token replacement strings */
std::stringstream n_samples_sstream;
std::string sampler_declarations_string;
std::string sample_fetch_string;
std::string sample_fetch_fs_string;
std::size_t token_location = std::string::npos;
const char* token_n_samples = "N_SAMPLES";
const char* token_sampler_declarations = "SAMPLER_DECLARATIONS";
const char* token_sample_fetch = "SAMPLE_FETCH";
n_samples_sstream << m_iteration_parent_texture_n_samples;
switch (m_iteration_view_texture_target)
{
case GL_TEXTURE_1D:
{
sampler_declarations_string = "uniform sampler1D texture;";
sample_fetch_string = "vec4 current_sample = textureLod(texture, 0.5, lod);\n";
sample_fetch_fs_string = "vec4 current_sample = textureLod(texture, gs_fs_uv.x, lod);\n";
break;
}
case GL_TEXTURE_1D_ARRAY:
{
sampler_declarations_string = "uniform sampler1DArray texture;\n"
"uniform float z_float;\n";
sample_fetch_string = "vec4 current_sample = textureLod(texture, vec2(0.5, z_float), lod);\n";
sample_fetch_fs_string = "vec4 current_sample = textureLod(texture, vec2(gs_fs_uv.x, z_float), lod);\n";
break;
}
case GL_TEXTURE_2D:
{
sampler_declarations_string = "uniform sampler2D texture;";
sample_fetch_string = "vec4 current_sample = textureLod(texture, vec2(0.5), lod);\n";
sample_fetch_fs_string = "vec4 current_sample = textureLod(texture, gs_fs_uv, lod);\n";
break;
}
case GL_TEXTURE_2D_ARRAY:
{
sampler_declarations_string = "uniform float z_float;\n"
"uniform sampler2DArray texture;";
sample_fetch_string = "vec4 current_sample = textureLod(texture, vec3(vec2(0.5), z_float), lod);\n";
sample_fetch_fs_string = "vec4 current_sample = textureLod(texture, vec3(gs_fs_uv, z_float), lod);\n";
break;
}
case GL_TEXTURE_2D_MULTISAMPLE:
{
sampler_declarations_string = "uniform sampler2DMS texture;";
sample_fetch_string = "ivec2 texture_size = textureSize(texture);\n"
"vec4 current_sample = texelFetch (texture,\n"
" ivec2(texture_size.xy / ivec2(2)),\n"
" n_sample);\n";
sample_fetch_fs_string = "ivec2 texture_size = textureSize(texture);\n"
"vec4 current_sample = texelFetch (texture,\n"
" ivec2(gs_fs_uv * vec2(texture_size)),\n"
" n_sample);\n";
break;
}
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
{
sampler_declarations_string = "uniform sampler2DMSArray texture;"
"uniform int z_int;\n";
sample_fetch_string = "ivec3 texture_size = textureSize(texture);\n"
"vec4 current_sample = texelFetch (texture,\n"
" ivec3(texture_size.xy / ivec2(2), z_int),\n"
" n_sample);\n";
sample_fetch_fs_string =
"ivec3 texture_size = textureSize(texture);\n"
"vec4 current_sample = texelFetch (texture,\n"
" ivec3(ivec2(gs_fs_uv * vec2(texture_size).xy), z_int),\n"
" n_sample);\n";
break;
}
case GL_TEXTURE_3D:
{
sampler_declarations_string = "uniform sampler3D texture;"
"uniform float z_float;";
sample_fetch_string = "vec4 current_sample = textureLod(texture, vec3(vec2(0.5), z_float), lod);\n";
sample_fetch_fs_string = "vec4 current_sample = textureLod(texture, vec3(gs_fs_uv, z_float), lod);\n";
break;
}
case GL_TEXTURE_CUBE_MAP:
{
sampler_declarations_string = "uniform samplerCube texture;\n"
"uniform int n_face;";
sample_fetch_string = "vec4 current_sample;\n"
"\n"
"switch (n_face)\n"
"{\n"
// GL_TEXTURE_CUBE_MAP_POSITIVE_X
" case 0: current_sample = textureLod(texture, vec3( 1, 0, 0), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_NEGATIVE_X
" case 1: current_sample = textureLod(texture, vec3(-1, 0, 0), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_POSITIVE_Y
" case 2: current_sample = textureLod(texture, vec3( 0, 1, 0), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
" case 3: current_sample = textureLod(texture, vec3( 0, -1, 0), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_POSITIVE_Z
" case 4: current_sample = textureLod(texture, vec3( 0, 0, 1), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
" case 5: current_sample = textureLod(texture, vec3( 0, 0, -1), lod); break;\n"
"}\n";
sample_fetch_fs_string =
"vec4 current_sample;\n"
"\n"
"switch (n_face)\n"
"{\n"
// GL_TEXTURE_CUBE_MAP_POSITIVE_X
" case 0: current_sample = textureLod(texture, normalize(vec3( 1, gs_fs_uv.xy)), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_NEGATIVE_X
" case 1: current_sample = textureLod(texture, normalize(vec3(-1, gs_fs_uv.xy)), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_POSITIVE_Y
" case 2: current_sample = textureLod(texture, normalize(vec3( gs_fs_uv.x, 1, gs_fs_uv.y)), lod); "
"break;\n"
// GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
" case 3: current_sample = textureLod(texture, normalize(vec3( gs_fs_uv.x, -1, gs_fs_uv.y)), lod); "
"break;\n"
// GL_TEXTURE_CUBE_MAP_POSITIVE_Z
" case 4: current_sample = textureLod(texture, normalize(vec3( gs_fs_uv.xy, 1)), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
" case 5: current_sample = textureLod(texture, normalize(vec3( gs_fs_uv.xy, -1)), lod); break;\n"
"}\n";
break;
}
case GL_TEXTURE_CUBE_MAP_ARRAY:
{
sampler_declarations_string = "uniform samplerCubeArray texture;\n"
"uniform int n_face;\n"
"uniform float z_float;\n";
sample_fetch_string =
"vec4 current_sample;\n"
"\n"
"switch (n_face)\n"
"{\n"
// GL_TEXTURE_CUBE_MAP_POSITIVE_X
" case 0: current_sample = textureLod(texture, vec4( 1, 0, 0, z_float), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_NEGATIVE_X
" case 1: current_sample = textureLod(texture, vec4(-1, 0, 0, z_float), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_POSITIVE_Y
" case 2: current_sample = textureLod(texture, vec4( 0, 1, 0, z_float), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
" case 3: current_sample = textureLod(texture, vec4( 0, -1, 0, z_float), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_POSITIVE_Z
" case 4: current_sample = textureLod(texture, vec4( 0, 0, 1, z_float), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
" case 5: current_sample = textureLod(texture, vec4( 0, 0, -1, z_float), lod); break;\n"
"}\n";
sample_fetch_fs_string = "vec4 current_sample;\n"
"\n"
"switch (n_face)\n"
"{\n"
// GL_TEXTURE_CUBE_MAP_POSITIVE_X
" case 0: current_sample = textureLod(texture, vec4(normalize(vec3( 1, "
"gs_fs_uv.xy)), z_float), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_NEGATIVE_X
" case 1: current_sample = textureLod(texture, vec4(normalize(vec3(-1, "
"gs_fs_uv.xy)), z_float), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_POSITIVE_Y
" case 2: current_sample = textureLod(texture, vec4(normalize(vec3( gs_fs_uv.x, 1, "
" gs_fs_uv.y)), z_float), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
" case 3: current_sample = textureLod(texture, vec4(normalize(vec3( gs_fs_uv.x, "
"-1, gs_fs_uv.y)), z_float), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_POSITIVE_Z
" case 4: current_sample = textureLod(texture, vec4(normalize(vec3( gs_fs_uv.xy, "
"1)), z_float), lod); break;\n"
// GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
" case 5: current_sample = textureLod(texture, vec4(normalize(vec3( gs_fs_uv.xy, "
"-1)), z_float), lod); break;\n"
"}\n";
break;
}
case GL_TEXTURE_RECTANGLE:
{
sampler_declarations_string = "uniform sampler2DRect texture;";
sample_fetch_string = "ivec2 texture_size = textureSize(texture);\n"
"vec4 current_sample = texelFetch (texture, texture_size / ivec2(2));\n";
sample_fetch_fs_string =
"ivec2 texture_size = textureSize(texture);\n"
"vec4 current_sample = texelFetch (texture, ivec2(gs_fs_uv.xy * vec2(texture_size)));\n";
break;
}
default:
{
TCU_FAIL("Unrecognized texture target");
}
} /* switch (m_iteration_view_texture_target) */
/* Set vertex shader's body */
const char* vs_body = "#version 400\n"
"\n"
"uniform float lod;\n"
"uniform vec4 reference_colors[N_SAMPLES];\n"
"SAMPLER_DECLARATIONS\n"
"\n"
"out int vs_tc_vs_sampling_result;\n"
"\n"
"void main()\n"
"{\n"
" const float epsilon = 1.0 / 255.0;\n"
"\n"
" vs_tc_vs_sampling_result = 1;\n"
"\n"
" for (int n_sample = 0; n_sample < N_SAMPLES; ++n_sample)\n"
" {\n"
" SAMPLE_FETCH;\n"
"\n"
" if (abs(current_sample.x - reference_colors[n_sample].x) > epsilon ||\n"
" abs(current_sample.y - reference_colors[n_sample].y) > epsilon ||\n"
" abs(current_sample.z - reference_colors[n_sample].z) > epsilon ||\n"
" abs(current_sample.w - reference_colors[n_sample].w) > epsilon)\n"
" {\n"
" vs_tc_vs_sampling_result = int(current_sample.x * 256.0);\n"
"\n"
" break;\n"
" }\n"
" }\n"
"\n"
" gl_Position = vec4(0.0, 0.0, 0.0, 1.0);\n"
"}\n";
std::string vs_string = vs_body;
while ((token_location = vs_string.find(token_n_samples)) != std::string::npos)
{
vs_string.replace(token_location, strlen(token_n_samples), n_samples_sstream.str());
}
while ((token_location = vs_string.find(token_sampler_declarations)) != std::string::npos)
{
vs_string.replace(token_location, strlen(token_sampler_declarations), sampler_declarations_string);
}
while ((token_location = vs_string.find(token_sample_fetch)) != std::string::npos)
{
vs_string.replace(token_location, strlen(token_sample_fetch), sample_fetch_string);
}
/* Set tessellation control shader's body */
const char* tc_body = "#version 400\n"
"\n"
"layout(vertices = 1) out;\n"
"\n"
"uniform float lod;\n"
"uniform vec4 reference_colors[N_SAMPLES];\n"
"SAMPLER_DECLARATIONS\n"
"\n"
"in int vs_tc_vs_sampling_result[];\n"
"out int tc_te_vs_sampling_result[];\n"
"out int tc_te_tc_sampling_result[];\n"
"\n"
"void main()\n"
"{\n"
" const float epsilon = 1.0 / 255.0;\n"
"\n"
" tc_te_vs_sampling_result[gl_InvocationID] = vs_tc_vs_sampling_result[gl_InvocationID];\n"
" tc_te_tc_sampling_result[gl_InvocationID] = 1;\n"
"\n"
" for (int n_sample = 0; n_sample < N_SAMPLES; ++n_sample)\n"
" {\n"
" SAMPLE_FETCH\n"
"\n"
" if (abs(current_sample.x - reference_colors[n_sample].x) > epsilon ||\n"
" abs(current_sample.y - reference_colors[n_sample].y) > epsilon ||\n"
" abs(current_sample.z - reference_colors[n_sample].z) > epsilon ||\n"
" abs(current_sample.w - reference_colors[n_sample].w) > epsilon)\n"
" {\n"
" tc_te_tc_sampling_result[gl_InvocationID] = 0;\n"
"\n"
" break;\n"
" }\n"
" }\n"
"\n"
" gl_TessLevelInner[0] = 1.0;\n"
" gl_TessLevelInner[1] = 1.0;\n"
" gl_TessLevelOuter[0] = 1.0;\n"
" gl_TessLevelOuter[1] = 1.0;\n"
" gl_TessLevelOuter[2] = 1.0;\n"
" gl_TessLevelOuter[3] = 1.0;\n"
"}\n";
std::string tc_string = tc_body;
while ((token_location = tc_string.find(token_n_samples)) != std::string::npos)
{
tc_string.replace(token_location, strlen(token_n_samples), n_samples_sstream.str());
}
while ((token_location = tc_string.find(token_sampler_declarations)) != std::string::npos)
{
tc_string.replace(token_location, strlen(token_sampler_declarations), sampler_declarations_string);
}
while ((token_location = tc_string.find(token_sample_fetch)) != std::string::npos)
{
tc_string.replace(token_location, strlen(token_sample_fetch), sample_fetch_string);
}
/* Set tessellation evaluation shader's body */
const char* te_body = "#version 400\n"
"\n"
"layout(quads) in;\n"
"\n"
"in int tc_te_vs_sampling_result[];\n"
"in int tc_te_tc_sampling_result[];\n"
"out int te_gs_vs_sampling_result;\n"
"out int te_gs_tc_sampling_result;\n"
"out int te_gs_te_sampling_result;\n"
"out vec2 te_gs_uv;\n"
"\n"
"uniform float lod;\n"
"uniform vec4 reference_colors[N_SAMPLES];\n"
"SAMPLER_DECLARATIONS\n"
"\n"
"void main()\n"
"{\n"
" te_gs_vs_sampling_result = tc_te_vs_sampling_result[0];\n"
" te_gs_tc_sampling_result = tc_te_tc_sampling_result[0];\n"
" te_gs_te_sampling_result = 1;\n"
"\n"
/* gl_TessCoord spans from 0 to 1 for XY. To generate a screen-space quad,
* we need to project these components to <-1, 1>. */
" gl_Position.xy = gl_TessCoord.xy * 2.0 - 1.0;\n"
" gl_Position.zw = vec2(0, 1);\n"
" te_gs_uv = vec2(gl_TessCoord.x, 1.0 - gl_TessCoord.y);\n"
"\n"
"\n"
" const float epsilon = 1.0 / 255.0;\n"
"\n"
" for (int n_sample = 0; n_sample < N_SAMPLES; ++n_sample)\n"
" {\n"
" SAMPLE_FETCH\n"
"\n"
" if (abs(current_sample.x - reference_colors[n_sample].x) > epsilon ||\n"
" abs(current_sample.y - reference_colors[n_sample].y) > epsilon ||\n"
" abs(current_sample.z - reference_colors[n_sample].z) > epsilon ||\n"
" abs(current_sample.w - reference_colors[n_sample].w) > epsilon)\n"
" {\n"
" te_gs_te_sampling_result = 0;\n"
"\n"
" break;\n"
" }\n"
" }\n"
"\n"
"}\n";
std::string te_string = te_body;
while ((token_location = te_string.find(token_n_samples)) != std::string::npos)
{
te_string.replace(token_location, strlen(token_n_samples), n_samples_sstream.str());
}
while ((token_location = te_string.find(token_sampler_declarations)) != std::string::npos)
{
te_string.replace(token_location, strlen(token_sampler_declarations), sampler_declarations_string);
}
while ((token_location = te_string.find(token_sample_fetch)) != std::string::npos)
{
te_string.replace(token_location, strlen(token_sample_fetch), sample_fetch_string);
}
/* Set geometry shader's body */
const char* gs_body = "#version 400\n"
"\n"
"layout (triangles) in;\n"
"layout (triangle_strip, max_vertices = 3) out;\n"
"\n"
"in int te_gs_vs_sampling_result[];\n"
"in int te_gs_tc_sampling_result[];\n"
"in int te_gs_te_sampling_result[];\n"
"in vec2 te_gs_uv [];\n"
"out int gs_fs_vs_sampling_result;\n"
"out int gs_fs_tc_sampling_result;\n"
"out int gs_fs_te_sampling_result;\n"
"out int gs_fs_gs_sampling_result;\n"
"out vec2 gs_fs_uv;\n"
"\n"
"uniform float lod;\n"
"uniform vec4 reference_colors[N_SAMPLES];\n"
"SAMPLER_DECLARATIONS\n"
"\n"
"void main()\n"
"{\n"
" const float epsilon = 1.0 / 255.0;\n"
" int gs_sampling_result = 1;\n"
" int tc_sampling_result = te_gs_tc_sampling_result[0] & "
"te_gs_tc_sampling_result[1] & te_gs_tc_sampling_result[2];\n"
" int te_sampling_result = te_gs_te_sampling_result[0] & "
"te_gs_te_sampling_result[1] & te_gs_te_sampling_result[2];\n"
" int vs_sampling_result = te_gs_vs_sampling_result[0] & "
"te_gs_vs_sampling_result[1] & te_gs_vs_sampling_result[2];\n"
"\n"
" for (int n_sample = 0; n_sample < N_SAMPLES; ++n_sample)\n"
" {\n"
" SAMPLE_FETCH;\n"
"\n"
" if (abs(current_sample.x - reference_colors[n_sample].x) > epsilon ||\n"
" abs(current_sample.y - reference_colors[n_sample].y) > epsilon ||\n"
" abs(current_sample.z - reference_colors[n_sample].z) > epsilon ||\n"
" abs(current_sample.w - reference_colors[n_sample].w) > epsilon)\n"
" {\n"
" gs_sampling_result = 0;\n"
"\n"
" break;\n"
" }\n"
" }\n"
"\n"
" gl_Position = gl_in[0].gl_Position;\n"
" gs_fs_uv = te_gs_uv[0];\n"
" gs_fs_gs_sampling_result = gs_sampling_result;\n"
" gs_fs_tc_sampling_result = tc_sampling_result;\n"
" gs_fs_te_sampling_result = te_sampling_result;\n"
" gs_fs_vs_sampling_result = vs_sampling_result;\n"
" EmitVertex();\n"
"\n"
" gl_Position = gl_in[1].gl_Position;\n"
" gs_fs_uv = te_gs_uv[1];\n"
" gs_fs_gs_sampling_result = gs_sampling_result;\n"
" gs_fs_tc_sampling_result = tc_sampling_result;\n"
" gs_fs_te_sampling_result = te_sampling_result;\n"
" gs_fs_vs_sampling_result = vs_sampling_result;\n"
" EmitVertex();\n"
"\n"
" gl_Position = gl_in[2].gl_Position;\n"
" gs_fs_uv = te_gs_uv[2];\n"
" gs_fs_gs_sampling_result = gs_sampling_result;\n"
" gs_fs_tc_sampling_result = tc_sampling_result;\n"
" gs_fs_te_sampling_result = te_sampling_result;\n"
" gs_fs_vs_sampling_result = vs_sampling_result;\n"
" EmitVertex();\n"
" EndPrimitive();\n"
"}\n";
std::string gs_string = gs_body;
while ((token_location = gs_string.find(token_n_samples)) != std::string::npos)
{
gs_string.replace(token_location, strlen(token_n_samples), n_samples_sstream.str());
}
while ((token_location = gs_string.find(token_sampler_declarations)) != std::string::npos)
{
gs_string.replace(token_location, strlen(token_sampler_declarations), sampler_declarations_string);
}
while ((token_location = gs_string.find(token_sample_fetch)) != std::string::npos)
{
gs_string.replace(token_location, strlen(token_sample_fetch), sample_fetch_string);
}
/* Set fragment shader's body */
const char* fs_body = "#version 400\n"
"\n"
"in vec2 gs_fs_uv;\n"
"\n"
"uniform float lod;\n"
"uniform vec4 reference_colors[N_SAMPLES];\n"
"SAMPLER_DECLARATIONS\n"
"\n"
"out vec4 result;\n"
"\n"
"void main()\n"
"{\n"
" const float epsilon = 1.0 / 255.0;\n"
"\n"
" result = vec4(1.0);\n"
"\n"
" for (int n_sample = 0; n_sample < N_SAMPLES; ++n_sample)\n"
" {\n"
" SAMPLE_FETCH\n"
"\n"
" if (abs(current_sample.x - reference_colors[n_sample].x) > epsilon ||\n"
" abs(current_sample.y - reference_colors[n_sample].y) > epsilon ||\n"
" abs(current_sample.z - reference_colors[n_sample].z) > epsilon ||\n"
" abs(current_sample.w - reference_colors[n_sample].w) > epsilon)\n"
" {\n"
" result = vec4(0.0);\n"
"\n"
" break;\n"
" }\n"
" }\n"
"}\n";
std::string fs_string = fs_body;
while ((token_location = fs_string.find(token_n_samples)) != std::string::npos)
{
fs_string.replace(token_location, strlen(token_n_samples), n_samples_sstream.str());
}
while ((token_location = fs_string.find(token_sampler_declarations)) != std::string::npos)
{
fs_string.replace(token_location, strlen(token_sampler_declarations), sampler_declarations_string);
}
while ((token_location = fs_string.find(token_sample_fetch)) != std::string::npos)
{
fs_string.replace(token_location, strlen(token_sample_fetch), sample_fetch_fs_string);
}
/* Configure shader bodies */
const char* fs_body_raw_ptr = fs_string.c_str();
const char* gs_body_raw_ptr = gs_string.c_str();
const char* tc_body_raw_ptr = tc_string.c_str();
const char* te_body_raw_ptr = te_string.c_str();
const char* vs_body_raw_ptr = vs_string.c_str();
gl.shaderSource(m_fs_id, 1 /* count */, &fs_body_raw_ptr, NULL /* length */);
gl.shaderSource(m_gs_id, 1 /* count */, &gs_body_raw_ptr, NULL /* length */);
gl.shaderSource(m_tc_id, 1 /* count */, &tc_body_raw_ptr, NULL /* length */);
gl.shaderSource(m_te_id, 1 /* count */, &te_body_raw_ptr, NULL /* length */);
gl.shaderSource(m_vs_id, 1 /* count */, &vs_body_raw_ptr, NULL /* length */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glShaderSource() call(s) failed.");
/* Compile the shaders */
const glw::GLuint so_ids[] = { m_fs_id, m_gs_id, m_tc_id, m_te_id, m_vs_id };
const unsigned int n_so_ids = sizeof(so_ids) / sizeof(so_ids[0]);
const glw::GLchar* shader_sources[] = { fs_body_raw_ptr, gs_body_raw_ptr, tc_body_raw_ptr, te_body_raw_ptr,
vs_body_raw_ptr };
for (unsigned int n_so_id = 0; n_so_id < n_so_ids; ++n_so_id)
{
glw::GLint compile_status = GL_FALSE;
glw::GLint so_id = so_ids[n_so_id];
gl.compileShader(so_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glCompileShader() call failed.");
gl.getShaderiv(so_id, GL_COMPILE_STATUS, &compile_status);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetShaderiv() call failed.");
if (compile_status != GL_TRUE)
{
char temp[1024];
gl.getShaderInfoLog(so_id, 1024, NULL, temp);
m_context.getTestContext().getLog() << tcu::TestLog::Message << "Shader compilation error log:\n"
<< temp << "\nShader source:\n"
<< shader_sources[n_so_id] << tcu::TestLog::EndMessage;
TCU_FAIL("Shader compilation failed");
}
/* Attach the shaders to the program object */
gl.attachShader(m_po_id, so_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glAttachShader() call failed");
} /* for (all shader objects) */
/* Set up XFB */
const char* varying_names[] = { "gs_fs_vs_sampling_result", "gs_fs_tc_sampling_result", "gs_fs_te_sampling_result",
"gs_fs_gs_sampling_result" };
const unsigned int n_varying_names = sizeof(varying_names) / sizeof(varying_names[0]);
gl.transformFeedbackVaryings(m_po_id, n_varying_names, varying_names, GL_INTERLEAVED_ATTRIBS);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTransformFeedbackVaryings() call failed.");
/* Link the program object */
glw::GLint link_status = GL_FALSE;
gl.linkProgram(m_po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glLinkProgram() call failed.");
gl.getProgramiv(m_po_id, GL_LINK_STATUS, &link_status);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetProgramiv() call failed.");
if (link_status != GL_TRUE)
{
TCU_FAIL("Program linking failed.");
}
/* Retrieve uniform locations. Depending on the iteration, a number of those will be
* inactive.
*/
m_po_lod_location = gl.getUniformLocation(m_po_id, "lod");
m_po_n_face_location = gl.getUniformLocation(m_po_id, "n_face");
m_po_reference_colors_location = gl.getUniformLocation(m_po_id, "reference_colors");
m_po_texture_location = gl.getUniformLocation(m_po_id, "texture");
m_po_z_float_location = gl.getUniformLocation(m_po_id, "z_float");
m_po_z_int_location = gl.getUniformLocation(m_po_id, "z_int");
if (m_po_reference_colors_location == -1)
{
TCU_FAIL("reference_colors is considered an inactive uniform which is invalid.");
}
}
/** Initializes contents of a texture, from which the view texture will be created. **/
void TextureViewTestViewSampling::initParentTextureContents()
{
static const glw::GLenum cm_texture_targets[] = {
/* NOTE: This order must match the order used for sampling CM/CMA texture targets. */
GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_NEGATIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
};
static const unsigned int n_cm_texture_targets = sizeof(cm_texture_targets) / sizeof(cm_texture_targets[0]);
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Bind the parent texture */
gl.bindTexture(m_iteration_parent_texture_target, m_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
/* If we're dealing with a single-sampled texture target, then we can clear the
* contents of each layer/face/slice using FBO. This will unfortunately not work
* for arrayed textures, layers or layer-faces of which cannot be attached to a draw
* framebuffer.
* If we need to update contents of a multisampled, potentially arrayed texture,
* we'll need to use the filler program.
**/
bool is_arrayed_texture_target = (m_iteration_parent_texture_target == GL_TEXTURE_1D_ARRAY ||
m_iteration_parent_texture_target == GL_TEXTURE_2D_ARRAY ||
m_iteration_parent_texture_target == GL_TEXTURE_CUBE_MAP_ARRAY);
bool is_multisampled_texture_target = (m_iteration_parent_texture_target == GL_TEXTURE_2D_MULTISAMPLE ||
m_iteration_parent_texture_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY);
if (!is_arrayed_texture_target && !is_multisampled_texture_target)
{
/* Good, no need to work with samples! */
DE_ASSERT(m_iteration_parent_texture_depth >= 1);
DE_ASSERT(m_iteration_parent_texture_n_levels >= 1);
/* Cube-map texture target cannot be directly used for a glFramebufferTexture2D() call. Instead,
* we need to split it into 6 cube-map texture targets. */
unsigned int n_texture_targets = 1;
glw::GLenum texture_targets[n_cm_texture_targets] = {
m_iteration_parent_texture_target, GL_NONE, GL_NONE, GL_NONE, GL_NONE, GL_NONE,
};
if (m_iteration_parent_texture_target == GL_TEXTURE_CUBE_MAP)
{
DE_STATIC_ASSERT(sizeof(texture_targets) == sizeof(cm_texture_targets));
memcpy(texture_targets, cm_texture_targets, sizeof(cm_texture_targets));
n_texture_targets = n_cm_texture_targets;
}
resetReferenceColorStorage(m_iteration_parent_texture_depth, /* n_layers */
n_texture_targets, /* n_faces */
m_iteration_parent_texture_n_levels, /* n_mipmaps */
1); /* n_samples */
/* Iterate through all texture targets we need to update */
for (unsigned int n_texture_target = 0; n_texture_target < n_texture_targets; ++n_texture_target)
{
const glw::GLenum texture_target = texture_targets[n_texture_target];
/* Iterate through all layers of the texture. */
for (unsigned int n_layer = 0; n_layer < m_iteration_parent_texture_depth; ++n_layer)
{
/* ..and mip-maps, too. */
const unsigned int n_mipmaps_for_layer = (texture_target == GL_TEXTURE_3D) ?
(m_iteration_parent_texture_n_levels - n_layer) :
(m_iteration_parent_texture_n_levels);
for (unsigned int n_mipmap = 0; n_mipmap < n_mipmaps_for_layer; ++n_mipmap)
{
/* Use appropriate glFramebufferTexture*() API, depending on the texture target of the
* parent texture.
*/
switch (texture_target)
{
case GL_TEXTURE_1D:
{
gl.framebufferTexture1D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_1D, m_to_id,
n_mipmap);
GLU_EXPECT_NO_ERROR(gl.getError(), "glFramebufferTexture1D() call failed.");
break;
}
case GL_TEXTURE_2D:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
case GL_TEXTURE_RECTANGLE:
{
gl.framebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, texture_target, m_to_id,
n_mipmap);
GLU_EXPECT_NO_ERROR(gl.getError(), "glFramebufferTexture2D() call failed.");
break;
}
case GL_TEXTURE_3D:
{
gl.framebufferTexture3D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_3D, m_to_id,
n_mipmap, n_layer);
GLU_EXPECT_NO_ERROR(gl.getError(), "glFramebufferTexture3D() call failed.");
break;
}
default:
{
TCU_FAIL("Unrecognized texture target");
}
} /* switch (m_iteration_parent_texture_target) */
/* Each layer/mipmap needs to be assigned an unique vec4. */
tcu::Vec4 reference_color = getRandomReferenceColor();
setReferenceColor(n_layer, n_texture_target, /* n_face */
n_mipmap, 0, /* n_sample */
reference_color);
/* We should be OK to clear the mip-map at this point */
gl.clearColor(reference_color.x(), reference_color.y(), reference_color.z(), reference_color.w());
GLU_EXPECT_NO_ERROR(gl.getError(), "glClearColor() call failed.");
gl.clear(GL_COLOR_BUFFER_BIT);
GLU_EXPECT_NO_ERROR(gl.getError(), "glClear() call failed.");
} /* for (all mip-maps) */
} /* for (all layers) */
} /* for (all texture targets) */
} /* if (!is_arrayed_texture_target && !is_multisampled_texture_target) */
else
{
/* We need to handle an either multisampled or arrayed texture target or
* a combination of the two.
*/
DE_ASSERT(m_iteration_parent_texture_target == GL_TEXTURE_1D_ARRAY ||
m_iteration_parent_texture_target == GL_TEXTURE_2D_ARRAY ||
m_iteration_parent_texture_target == GL_TEXTURE_2D_MULTISAMPLE ||
m_iteration_parent_texture_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY ||
m_iteration_parent_texture_target == GL_TEXTURE_CUBE_MAP_ARRAY);
DE_ASSERT(m_iteration_parent_texture_depth >= 1);
DE_ASSERT(m_iteration_parent_texture_n_levels >= 1);
const unsigned int n_faces =
(m_iteration_parent_texture_target == GL_TEXTURE_CUBE_MAP_ARRAY) ? 6 /* faces */ : 1;
resetReferenceColorStorage(m_iteration_parent_texture_depth, /* n_layers */
n_faces, m_iteration_parent_texture_n_levels, /* n_mipmaps */
m_max_color_texture_samples_gl_value); /* n_samples */
/* Set up storage for reference colors the fragment shader should use
* when rendering to multisampled texture target */
float* reference_colors = new float[4 /* rgba */ * m_max_color_texture_samples_gl_value];
/* Activate the filler program */
gl.useProgram(m_per_sample_filler_po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram() call failed.");
/* Iterate through all layers of the texture. */
for (unsigned int n_layer = 0; n_layer < m_iteration_parent_texture_depth; ++n_layer)
{
/* ..faces.. */
for (unsigned int n_face = 0; n_face < n_faces; ++n_face)
{
/* ..and mip-maps, too. */
for (unsigned int n_mipmap = 0; n_mipmap < m_iteration_parent_texture_n_levels; ++n_mipmap)
{
/* For all texture targets considered excl. GL_TEXTURE_2D_MULTISAMPLE, we need
* to use glFramebufferTextur() to bind all layers to the color atatchment. For
* 2DMS textures, we can use plain glFramebufferTexture2D().
*/
if (m_iteration_parent_texture_target != GL_TEXTURE_2D_MULTISAMPLE)
{
gl.framebufferTexture(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, m_to_id, n_mipmap);
GLU_EXPECT_NO_ERROR(gl.getError(), "glFramebufferTextureLayer() call failed.");
}
else
{
/* Sanity check */
DE_ASSERT(m_iteration_parent_texture_depth == 1);
gl.framebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
m_iteration_parent_texture_target, m_to_id, n_mipmap);
GLU_EXPECT_NO_ERROR(gl.getError(), "glFramebufferTexture2D() call failed.");
}
/* Generate reference colors for all samples */
const unsigned int n_samples =
(is_multisampled_texture_target) ? m_max_color_texture_samples_gl_value : 1;
for (unsigned int n_sample = 0; n_sample < n_samples; ++n_sample)
{
tcu::Vec4 reference_color = getRandomReferenceColor();
reference_colors[4 /* rgba */ * n_sample + 0] = reference_color.x();
reference_colors[4 /* rgba */ * n_sample + 1] = reference_color.y();
reference_colors[4 /* rgba */ * n_sample + 2] = reference_color.z();
reference_colors[4 /* rgba */ * n_sample + 3] = reference_color.w();
setReferenceColor(n_layer, n_face, n_mipmap, n_sample, reference_color);
} /* for (all samples) */
/* Upload the reference sample colors */
gl.uniform4fv(m_per_sample_filler_po_reference_colors_location, n_samples, reference_colors);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform4fv() call failed.");
/* Update the layer ID the program should render to */
const unsigned int layer_id = n_face * 6 /* faces */ + n_layer;
gl.uniform1i(m_per_sample_filler_po_layer_id_location, layer_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i() call failed.");
/* Draw the full-screen quad. Geometry shader will draw the quad for us,
* so all we need to do is to feed the rendering pipeline with a single
* point.
*/
gl.drawArrays(GL_POINTS, 0 /* first */, 1 /* count */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDrawArrays() call failed.");
} /* for (all mip-maps) */
} /* for (all faces) */
} /* for (all layers) */
delete[] reference_colors;
}
}
/** Initializes the 'per sample filler' program object, used to fill a multi-sample texture
* with colors varying on a per-sample basis.
*/
void TextureViewTestViewSampling::initPerSampleFillerProgramObject()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Sanity checks: GL_MAX_COLOR_TEXTURE_SAMPLES is not 0 */
DE_ASSERT(m_max_color_texture_samples_gl_value != 0);
/* Generate program and shader objects */
m_per_sample_filler_fs_id = gl.createShader(GL_FRAGMENT_SHADER);
m_per_sample_filler_gs_id = gl.createShader(GL_GEOMETRY_SHADER);
m_per_sample_filler_vs_id = gl.createShader(GL_VERTEX_SHADER);
GLU_EXPECT_NO_ERROR(gl.getError(), "glCreateShader() call(s) failed.");
m_per_sample_filler_po_id = gl.createProgram();
GLU_EXPECT_NO_ERROR(gl.getError(), "glCreateProgram() call failed.");
/* Configure fragment shader's body */
static const char* fs_body = "#version 400\n"
"\n"
"uniform vec4 reference_colors[N_MAX_SAMPLES];\n"
"\n"
"out vec4 result;\n"
"\n"
"void main()\n"
"{\n"
" result = reference_colors[gl_SampleID];\n"
"}\n";
std::string fs_body_string = fs_body;
const char* fs_body_string_raw_ptr = DE_NULL;
std::stringstream n_max_samples_sstream;
const char* n_max_samples_token = "N_MAX_SAMPLES";
std::size_t token_location = std::string::npos;
n_max_samples_sstream << m_max_color_texture_samples_gl_value;
while ((token_location = fs_body_string.find(n_max_samples_token)) != std::string::npos)
{
fs_body_string.replace(token_location, strlen(n_max_samples_token), n_max_samples_sstream.str());
}
fs_body_string_raw_ptr = fs_body_string.c_str();
gl.shaderSource(m_per_sample_filler_fs_id, 1 /* count */, &fs_body_string_raw_ptr, DE_NULL /* length */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glShaderSource() call failed.");
/* Configure geometry shader's body */
static const char* gs_body = "#version 400\n"
"\n"
"layout(points) in;\n"
"layout(triangle_strip, max_vertices = 4) out;\n"
"\n"
"uniform int layer_id;\n"
"\n"
"void main()\n"
"{\n"
" gl_Layer = layer_id;\n"
" gl_Position = vec4(-1.0, -1.0, 0.0, 1.0);\n"
" EmitVertex();\n"
"\n"
" gl_Layer = layer_id;\n"
" gl_Position = vec4(-1.0, 1.0, 0.0, 1.0);\n"
" EmitVertex();\n"
"\n"
" gl_Layer = layer_id;\n"
" gl_Position = vec4( 1.0, -1.0, 0.0, 1.0);\n"
" EmitVertex();\n"
"\n"
" gl_Layer = layer_id;\n"
" gl_Position = vec4( 1.0, 1.0, 0.0, 1.0);\n"
" EmitVertex();\n"
"\n"
" EndPrimitive();\n"
"\n"
"}\n";
gl.shaderSource(m_per_sample_filler_gs_id, 1 /* count */, &gs_body, DE_NULL /* length */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glShaderSource() call failed.");
/* Configure vertex shader */
static const char* vs_body = "#version 400\n"
"\n"
"void main()\n"
"{\n"
" gl_Position = vec4(-1.0, -1.0, 0.0, 1.0);\n"
"}\n";
gl.shaderSource(m_per_sample_filler_vs_id, 1 /* count */, &vs_body, DE_NULL /* length */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glShaderSource() call failed.");
/* Attach the shaders to the program object */
gl.attachShader(m_per_sample_filler_po_id, m_per_sample_filler_fs_id);
gl.attachShader(m_per_sample_filler_po_id, m_per_sample_filler_gs_id);
gl.attachShader(m_per_sample_filler_po_id, m_per_sample_filler_vs_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glAttachShader() call(s) failed.");
/* Compile the shaders */
const glw::GLuint so_ids[] = { m_per_sample_filler_fs_id, m_per_sample_filler_gs_id, m_per_sample_filler_vs_id };
const unsigned int n_so_ids = sizeof(so_ids) / sizeof(so_ids[0]);
for (unsigned int n_so_id = 0; n_so_id < n_so_ids; ++n_so_id)
{
glw::GLint compile_status = GL_FALSE;
glw::GLuint so_id = so_ids[n_so_id];
gl.compileShader(so_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glCompileShader() call failed.");
gl.getShaderiv(so_id, GL_COMPILE_STATUS, &compile_status);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetShaderiV() call failed.");
if (compile_status != GL_TRUE)
{
TCU_FAIL("Shader compilation failed.");
}
} /* for (all shader objects) */
/* Link the program object */
glw::GLint link_status = GL_FALSE;
gl.linkProgram(m_per_sample_filler_po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glLinkProgram() call failed.");
gl.getProgramiv(m_per_sample_filler_po_id, GL_LINK_STATUS, &link_status);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetProgramiv() call failed.");
if (link_status != GL_TRUE)
{
TCU_FAIL("Program linking failed.");
}
/* Retrieve uniform locations */
m_per_sample_filler_po_layer_id_location = gl.getUniformLocation(m_per_sample_filler_po_id, "layer_id");
m_per_sample_filler_po_reference_colors_location =
gl.getUniformLocation(m_per_sample_filler_po_id, "reference_colors[0]");
if (m_per_sample_filler_po_layer_id_location == -1)
{
TCU_FAIL("layer_id uniform is considered inactive which is invalid");
}
if (m_per_sample_filler_po_reference_colors_location == -1)
{
TCU_FAIL("reference_colors uniform is considered inactive which is invalid");
}
}
/** Initializes GL objects needed to run the test (excluding iteration-specific objects) */
void TextureViewTestViewSampling::initTest()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Generate and configure BO storage to hold result XFB data of a single
* draw call.
*
* Each draw call outputs 6 vertices. For each vertex, 4 ints will be XFBed out. */
gl.genBuffers(1, &m_bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenBuffers() call failed.");
gl.bindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, m_bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer() call failed.");
gl.bufferData(GL_TRANSFORM_FEEDBACK_BUFFER, 6 /* draw calls */ * (4 * sizeof(int)), /* as per comment */
DE_NULL, GL_STATIC_DRAW);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBufferData() call failed.");
/* Generate a FBO and bind it to both binding targets */
gl.genFramebuffers(1, &m_fbo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenFramebuffers() call failed.");
gl.bindFramebuffer(GL_FRAMEBUFFER, m_fbo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindFramebuffer() call failed.");
/* Generate and bind a VAO */
gl.genVertexArrays(1, &m_vao_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenVertexArrays() call failed.");
gl.bindVertexArray(m_vao_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindVertexArray() call failed.");
/* Generate and configure a texture object we will use to verify view sampling works correctly
* from within a fragment shader.
*/
gl.genTextures(1, &m_result_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call failed.");
gl.bindTexture(GL_TEXTURE_2D, m_result_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
gl.texStorage2D(GL_TEXTURE_2D, 1 /* levels */, GL_RGBA8, m_reference_texture_width, m_reference_texture_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed.");
/* Determine implementation-specific GL_MAX_COLOR_TEXTURE_SAMPLES value */
gl.getIntegerv(GL_MAX_COLOR_TEXTURE_SAMPLES, &m_max_color_texture_samples_gl_value);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetIntegerv() call failed for GL_MAX_COLOR_TEXTURE_SAMPLES pname.");
/* Modify pixel storage settings so that we don't rely on the default aligment setting. */
gl.pixelStorei(GL_PACK_ALIGNMENT, 1);
gl.pixelStorei(GL_UNPACK_ALIGNMENT, 1);
GLU_EXPECT_NO_ERROR(gl.getError(), "glPixelStorei() call(s) failed.");
/* Modify GL_PATCH_VERTICES setting so that a single patch consists of only a single vertex
* (instead of the default 3) */
gl.patchParameteri(GL_PATCH_VERTICES, 1);
GLU_EXPECT_NO_ERROR(gl.getError(), "glPatchParameteri() call failed.");
}
/** Initializes and sets up a texture object storage, but does not fill it
* with actual content. Implements separate code paths for handling parent
* & view textures.
*
* @param is_view_texture true if a view texture should be initialized,
* false if te caller needs a parent texture. Note
* that a parent texture must be initialized prior
* to configuring a view texture.
* @param texture_target Texture target to use for the parent texture.
* @param view_texture_target Texture target to use for the view texture.
**/
void TextureViewTestViewSampling::initTextureObject(bool is_view_texture, glw::GLenum texture_target,
glw::GLenum view_texture_target)
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
unsigned int texture_depth = 0;
glw::GLuint* to_id_ptr = (is_view_texture) ? &m_view_to_id : &m_to_id;
/* Sanity check: make sure GL_TEXTURE_BUFFER texture target is not requested. This
* would be against the test specification.
**/
DE_ASSERT(texture_target != GL_TEXTURE_BUFFER);
DE_ASSERT(view_texture_target != GL_TEXTURE_BUFFER);
/* If we're going to be creating a cube-map or cube-map array texture view in this iteration,
* make sure the parent or view texture's depth is valid */
if (view_texture_target == GL_TEXTURE_CUBE_MAP_ARRAY)
{
texture_depth = 13; /* 1 + 2 * (6 faces) */
}
else if (view_texture_target == GL_TEXTURE_CUBE_MAP)
{
texture_depth = 7; /* 1 + (6 faces) */
}
else
{
texture_depth = m_reference_texture_depth;
}
if (texture_target == GL_TEXTURE_CUBE_MAP_ARRAY)
{
texture_depth = 6 /* faces */ * 3;
}
/* Release the texture object, as we're using immutable texture objects and would
* prefer the resources not to leak.
*/
if (*to_id_ptr != 0)
{
gl.deleteTextures(1, to_id_ptr);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDeleteTextures() call failed.");
}
/* Generate a new texture object */
gl.genTextures(1, to_id_ptr);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call failed.");
if (is_view_texture)
{
/* Determine values of arguments we'll pass to glTextureView() call */
unsigned int minlayer = 0;
unsigned int minlevel = 0;
unsigned int numlayers = 0;
unsigned int numlevels = 2;
const bool is_texture_arrayed_texture_target =
(texture_target == GL_TEXTURE_1D_ARRAY || texture_target == GL_TEXTURE_2D_ARRAY ||
texture_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY || texture_target == GL_TEXTURE_CUBE_MAP_ARRAY);
const bool is_texture_cube_map_texture_target = (texture_target == GL_TEXTURE_CUBE_MAP);
const bool is_texture_multisample_texture_target =
(texture_target == GL_TEXTURE_2D_MULTISAMPLE || texture_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY);
const bool is_texture_rectangle_texture_target = (texture_target == GL_TEXTURE_RECTANGLE);
const bool is_view_arrayed_texture_target =
(view_texture_target == GL_TEXTURE_1D_ARRAY || view_texture_target == GL_TEXTURE_2D_ARRAY ||
view_texture_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY ||
view_texture_target == GL_TEXTURE_CUBE_MAP_ARRAY);
const bool is_view_cube_map_texture_target = (view_texture_target == GL_TEXTURE_CUBE_MAP);
const bool is_view_cube_map_array_texture_target = (view_texture_target == GL_TEXTURE_CUBE_MAP_ARRAY);
if (is_texture_multisample_texture_target || is_texture_rectangle_texture_target)
{
minlevel = 0;
numlevels = 1;
}
else
{
minlevel = 1;
}
if ((true == is_texture_arrayed_texture_target) ||
((false == is_texture_cube_map_texture_target) && (true == is_view_cube_map_texture_target)) ||
((false == is_texture_cube_map_texture_target) && (true == is_view_cube_map_array_texture_target)))
{
minlayer = 1;
}
else
{
minlayer = 0;
}
if (!is_texture_cube_map_texture_target && is_view_cube_map_array_texture_target)
{
numlayers = 12;
}
else if (is_view_cube_map_texture_target || is_view_cube_map_array_texture_target)
{
numlayers = 6;
}
else if (is_view_arrayed_texture_target)
{
if (is_texture_arrayed_texture_target || is_texture_cube_map_texture_target)
{
numlayers = 2;
}
else
{
numlayers = 1;
}
}
else
{
numlayers = 1;
}
/* Set up view texture */
gl.textureView(*to_id_ptr, view_texture_target, m_to_id, GL_RGBA8, minlevel, numlevels, minlayer, numlayers);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTextureView() call failed.");
/* Store the argument values */
m_iteration_view_texture_minlayer = minlayer;
m_iteration_view_texture_minlevel = minlevel;
m_iteration_view_texture_numlayers = numlayers;
m_iteration_view_texture_numlevels = numlevels;
m_iteration_view_texture_target = view_texture_target;
m_testCtx.getLog() << tcu::TestLog::Message << "Created a view for texture target "
<< "[" << TextureViewUtilities::getTextureTargetString(view_texture_target) << "] "
<< "from a parent texture target "
<< "[" << TextureViewUtilities::getTextureTargetString(texture_target) << "] "
<< "using arguments: "
<< "minlayer:[" << minlayer << "] "
<< "minlevel:[" << minlevel << "] "
<< "numlayers:[" << numlayers << "] "
<< "numlevels:[" << numlevels << "]." << tcu::TestLog::EndMessage;
gl.bindTexture(view_texture_target, *to_id_ptr);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
} /* if (is_view_texture) */
else
{
/* Reset iteration-specific view settings */
m_iteration_parent_texture_depth = 1;
m_iteration_parent_texture_height = 1;
m_iteration_parent_texture_n_levels = 1;
m_iteration_parent_texture_n_samples = 1;
m_iteration_parent_texture_width = 1;
/* Initialize storage for the newly created texture object */
gl.bindTexture(texture_target, *to_id_ptr);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
/* Use max conformant sample count for multisample texture targets */
if (texture_target == GL_TEXTURE_2D_MULTISAMPLE || texture_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY)
{
m_max_color_texture_samples_gl_value = getMaxConformantSampleCount(texture_target, GL_RGBA8);
}
else
{
/* Use GL_MAX_COLOR_TEXTURE_SAMPLES value for other targets */
gl.getIntegerv(GL_MAX_COLOR_TEXTURE_SAMPLES, &m_max_color_texture_samples_gl_value);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetIntegerv() call failed for GL_MAX_COLOR_TEXTURE_SAMPLES pname.");
}
switch (texture_target)
{
case GL_TEXTURE_1D:
{
gl.texStorage1D(texture_target, m_reference_texture_n_mipmaps, GL_RGBA8, m_reference_texture_width);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage1D() call failed.");
m_iteration_parent_texture_n_levels = m_reference_texture_n_mipmaps;
m_iteration_parent_texture_width = m_reference_texture_width;
m_testCtx.getLog() << tcu::TestLog::Message
<< "Created an immutable parent texture object for texture target "
<< "[" << TextureViewUtilities::getTextureTargetString(texture_target) << "] "
<< "of "
<< "levels:[" << m_reference_texture_n_mipmaps << "] "
<< "width:[" << m_reference_texture_width << "]." << tcu::TestLog::EndMessage;
break;
}
case GL_TEXTURE_1D_ARRAY:
{
gl.texStorage2D(texture_target, m_reference_texture_n_mipmaps, GL_RGBA8, m_reference_texture_width,
texture_depth);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed.");
m_iteration_parent_texture_depth = texture_depth;
m_iteration_parent_texture_n_levels = m_reference_texture_n_mipmaps;
m_iteration_parent_texture_width = m_reference_texture_width;
m_testCtx.getLog() << tcu::TestLog::Message
<< "Created an immutable parent texture object for texture target "
<< "[" << TextureViewUtilities::getTextureTargetString(texture_target) << "] "
<< "of "
<< "depth:[" << texture_depth << "] "
<< "levels:[" << m_reference_texture_n_mipmaps << "] "
<< "width:[" << m_reference_texture_width << "]." << tcu::TestLog::EndMessage;
break;
}
case GL_TEXTURE_CUBE_MAP:
case GL_TEXTURE_2D:
{
gl.texStorage2D(texture_target, m_reference_texture_n_mipmaps, GL_RGBA8, m_reference_texture_width,
m_reference_texture_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed.");
m_iteration_parent_texture_height = m_reference_texture_height;
m_iteration_parent_texture_n_levels = m_reference_texture_n_mipmaps;
m_iteration_parent_texture_width = m_reference_texture_width;
m_testCtx.getLog() << tcu::TestLog::Message
<< "Created an immutable parent texture object for texture target "
<< "[" << TextureViewUtilities::getTextureTargetString(texture_target) << "] "
<< "of "
<< "levels:[" << m_reference_texture_n_mipmaps << "] "
<< "width:[" << m_reference_texture_width << "] "
<< "height:[" << m_reference_texture_height << "]." << tcu::TestLog::EndMessage;
break;
}
case GL_TEXTURE_RECTANGLE:
{
gl.texStorage2D(texture_target, 1, /* rectangle textures do not use mip-maps */
GL_RGBA8, m_reference_texture_width, m_reference_texture_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed.");
m_iteration_parent_texture_height = m_reference_texture_height;
m_iteration_parent_texture_width = m_reference_texture_width;
m_testCtx.getLog() << tcu::TestLog::Message
<< "Created an immutable parent texture object for texture target "
<< "[" << TextureViewUtilities::getTextureTargetString(texture_target) << "] "
<< "of "
<< "levels:1 "
<< "width:[" << m_reference_texture_width << "] "
<< "height:[" << m_reference_texture_height << "]." << tcu::TestLog::EndMessage;
break;
}
case GL_TEXTURE_2D_ARRAY:
{
gl.texStorage3D(texture_target, m_reference_texture_n_mipmaps, GL_RGBA8, m_reference_texture_width,
m_reference_texture_height, texture_depth);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage3D() call failed.");
m_iteration_parent_texture_depth = texture_depth;
m_iteration_parent_texture_height = m_reference_texture_height;
m_iteration_parent_texture_n_levels = m_reference_texture_n_mipmaps;
m_iteration_parent_texture_width = m_reference_texture_width;
m_testCtx.getLog() << tcu::TestLog::Message
<< "Created an immutable parent texture object for texture target "
<< "[" << TextureViewUtilities::getTextureTargetString(texture_target) << "] "
<< "of "
<< "depth:[" << texture_depth << "] "
<< "levels:[" << m_reference_texture_n_mipmaps << "] "
<< "width:[" << m_reference_texture_width << "] "
<< "height:[" << m_reference_texture_height << "]." << tcu::TestLog::EndMessage;
break;
}
case GL_TEXTURE_2D_MULTISAMPLE:
{
gl.texStorage2DMultisample(texture_target, m_max_color_texture_samples_gl_value, GL_RGBA8,
m_reference_texture_width, m_reference_texture_height,
GL_TRUE); /* fixedsamplelocations */
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2DMultisample() call failed.");
m_iteration_parent_texture_height = m_reference_texture_height;
m_iteration_parent_texture_n_samples = m_max_color_texture_samples_gl_value;
m_iteration_parent_texture_width = m_reference_texture_width;
m_testCtx.getLog() << tcu::TestLog::Message
<< "Created an immutable parent texture object for texture target "
<< "[" << TextureViewUtilities::getTextureTargetString(texture_target) << "] "
<< "of "
<< "samples:[" << m_max_color_texture_samples_gl_value << "] "
<< "width:[" << m_reference_texture_width << "] "
<< "height:[" << m_reference_texture_height << "]." << tcu::TestLog::EndMessage;
break;
}
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
{
gl.texStorage3DMultisample(texture_target, m_max_color_texture_samples_gl_value, GL_RGBA8,
m_reference_texture_width, m_reference_texture_height, texture_depth,
GL_TRUE); /* fixed sample locations */
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage3DMultisample() call failed.");
m_iteration_parent_texture_depth = texture_depth;
m_iteration_parent_texture_height = m_reference_texture_height;
m_iteration_parent_texture_n_samples = m_max_color_texture_samples_gl_value;
m_iteration_parent_texture_width = m_reference_texture_width;
m_testCtx.getLog() << tcu::TestLog::Message
<< "Created an immutable parent texture object for texture target "
<< "[" << TextureViewUtilities::getTextureTargetString(texture_target) << "] "
<< "of "
<< "samples:[" << m_max_color_texture_samples_gl_value << "] "
<< "width:[" << m_reference_texture_width << "] "
<< "height:[" << m_reference_texture_height << "] "
<< "depth:[" << texture_depth << "]." << tcu::TestLog::EndMessage;
break;
}
case GL_TEXTURE_3D:
case GL_TEXTURE_CUBE_MAP_ARRAY:
{
gl.texStorage3D(texture_target, m_reference_texture_n_mipmaps, GL_RGBA8, m_reference_texture_width,
m_reference_texture_height, texture_depth);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage3D() call failed.");
m_iteration_parent_texture_depth = texture_depth;
m_iteration_parent_texture_height = m_reference_texture_height;
m_iteration_parent_texture_n_levels = m_reference_texture_n_mipmaps;
m_iteration_parent_texture_width = m_reference_texture_width;
m_testCtx.getLog() << tcu::TestLog::Message
<< "Created an immutable parent texture object for texture target "
<< "[" << TextureViewUtilities::getTextureTargetString(texture_target) << "] "
<< "of "
<< "levels:[" << m_reference_texture_n_mipmaps << "] "
<< "width:[" << m_reference_texture_width << "] "
<< "height:[" << m_reference_texture_height << "] "
<< "depth:[" << texture_depth << "]." << tcu::TestLog::EndMessage;
break;
}
default:
{
TCU_FAIL("Unrecognized texture target.");
}
} /* switch (texture_target) */
m_iteration_parent_texture_target = texture_target;
}
/* Configure texture filtering */
if (texture_target != GL_TEXTURE_2D_MULTISAMPLE && texture_target != GL_TEXTURE_2D_MULTISAMPLE_ARRAY &&
texture_target != GL_TEXTURE_RECTANGLE)
{
gl.texParameteri(texture_target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
gl.texParameteri(texture_target, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexParameteri() call(s) failed.");
}
}
/** Executes test iteration.
*
* @return Returns STOP when test has finished executing, CONTINUE if more iterations are needed.
*/
tcu::TestNode::IterateResult TextureViewTestViewSampling::iterate()
{
bool has_failed = false;
/* Make sure GL_ARB_texture_view is reported as supported before carrying on
* with actual execution */
const std::vector<std::string>& extensions = m_context.getContextInfo().getExtensions();
if (std::find(extensions.begin(), extensions.end(), "GL_ARB_texture_view") == extensions.end())
{
throw tcu::NotSupportedError("GL_ARB_texture_view is not supported");
}
/* Initialize all objects required to run the test */
initTest();
/* Initialize per-sample filler program */
initPerSampleFillerProgramObject();
/* Iterate through all texture/view texture target combinations */
TextureViewUtilities::_compatible_texture_target_pairs_const_iterator texture_target_iterator;
TextureViewUtilities::_compatible_texture_target_pairs texture_target_pairs =
TextureViewUtilities::getLegalTextureAndViewTargetCombinations();
for (texture_target_iterator = texture_target_pairs.begin(); texture_target_iterator != texture_target_pairs.end();
++texture_target_iterator)
{
const glw::GLenum parent_texture_target = texture_target_iterator->first;
const glw::GLenum view_texture_target = texture_target_iterator->second;
/* Initialize parent texture */
initTextureObject(false /* is_view_texture */, parent_texture_target, view_texture_target);
/* Initialize view */
initTextureObject(true /* is_view_texture */, parent_texture_target, view_texture_target);
/* Initialize contents of the parent texture */
initParentTextureContents();
/* Initialize iteration-specific test program object */
initIterationSpecificProgramObject();
/* Run the actual test */
bool status = executeTest();
if (!status)
{
has_failed = true;
m_testCtx.getLog() << tcu::TestLog::Message << "Test case failed." << tcu::TestLog::EndMessage;
}
else
{
m_testCtx.getLog() << tcu::TestLog::Message << "Test case succeeded." << tcu::TestLog::EndMessage;
}
}
if (!has_failed)
{
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
}
else
{
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Fail");
}
return STOP;
}
/** De-allocates existing reference color storage (if one already exists) and
* allocates a new one using user-provided properties.
*
* @param n_layers Amount of layers to consider. Use a value of 1 for non-arrayed
* texture targets.
* @param n_faces Amount of faces to consider. Use a value of 1 for non-CM
* texture targets.
* @param n_mipmaps Amount of mip-maps to consider. Use a value of 1 for non-mipmapped
* texture targets.
* @param n_samples Amount of samples to consider. Use a value of 1 for single-sampled
* texture targets.
**/
void TextureViewTestViewSampling::resetReferenceColorStorage(unsigned int n_layers, unsigned int n_faces,
unsigned int n_mipmaps, unsigned int n_samples)
{
/* Sanity checks */
DE_ASSERT(n_layers >= 1);
DE_ASSERT(n_faces >= 1);
DE_ASSERT(n_mipmaps >= 1);
DE_ASSERT(n_samples >= 1);
/* Allocate the descriptor if it's the first time the test will be
* attempting to access it */
if (m_reference_color_storage == DE_NULL)
{
m_reference_color_storage = new _reference_color_storage(n_faces, n_layers, n_mipmaps, n_samples);
}
else
{
/* The descriptor's already there so we only need to update the properties */
m_reference_color_storage->n_faces = n_faces;
m_reference_color_storage->n_layers = n_layers;
m_reference_color_storage->n_mipmaps = n_mipmaps;
m_reference_color_storage->n_samples = n_samples;
}
/* If there's any data descriptor found allocated at this point,
* release it */
if (m_reference_color_storage->data != DE_NULL)
{
delete[] m_reference_color_storage->data;
m_reference_color_storage->data = DE_NULL;
}
m_reference_color_storage->data = new tcu::Vec4[n_layers * n_faces * n_mipmaps * n_samples];
}
/** Assigns user-specified reference color to a specific sample of a layer/face's mip-map.
*
* This function throws an assertion failure if the requested layer/face/mip-map/sample index
* is invalid.
*
* @param n_layer Layer index to use for the association. Use a value of 0 for non-arrayed texture
* targets.
* @param n_face Face index to use for the association. Use a value of 0 for non-CM texture targets.
* @param n_mipmap Mip-map index to use for the association. Use a value of 0 for non-mipmapped texture
* targets.
* @param n_sample Sample index to use for the association. Use a value of 0 for single-sampled texture
* targets.
* @param color Color to associate with the specified sample.
**/
void TextureViewTestViewSampling::setReferenceColor(unsigned int n_layer, unsigned int n_face, unsigned int n_mipmap,
unsigned int n_sample, tcu::Vec4 color)
{
DE_ASSERT(m_reference_color_storage != DE_NULL);
if (m_reference_color_storage != DE_NULL)
{
DE_ASSERT(n_face < m_reference_color_storage->n_faces);
DE_ASSERT(n_layer < m_reference_color_storage->n_layers);
DE_ASSERT(n_mipmap < m_reference_color_storage->n_mipmaps);
DE_ASSERT(n_sample < m_reference_color_storage->n_samples);
/* Hierarchy is:
*
* layers -> faces -> mipmaps -> samples */
const unsigned int index =
n_layer * (m_reference_color_storage->n_faces * m_reference_color_storage->n_mipmaps *
m_reference_color_storage->n_samples) +
n_face * (m_reference_color_storage->n_mipmaps * m_reference_color_storage->n_samples) +
n_mipmap * (m_reference_color_storage->n_samples) + n_sample;
m_reference_color_storage->data[index] = color;
}
}
/** Constructor.
*
* @param context Rendering context.
**/
TextureViewTestViewClasses::TextureViewTestViewClasses(deqp::Context& context)
: TestCase(context, "view_classes", "Verifies view sampling works correctly. Tests all valid"
" texture/view internalformat combinations.")
, m_bo_id(0)
, m_po_id(0)
, m_to_id(0)
, m_to_temp_id(0)
, m_vao_id(0)
, m_view_to_id(0)
, m_vs_id(0)
, m_decompressed_mipmap_data(DE_NULL)
, m_mipmap_data(DE_NULL)
, m_bo_size(0)
, m_has_test_failed(false)
, m_texture_height(4)
, m_texture_unit_for_parent_texture(GL_TEXTURE0)
, m_texture_unit_for_view_texture(GL_TEXTURE1)
, m_texture_width(4)
, m_view_data_offset(0)
{
/* Left blank on purpose */
}
/** Deinitializes all buffers and GL objects that may have been created
* during test execution. Also restores GL state that may have been modified.
**/
void TextureViewTestViewClasses::deinit()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
if (m_bo_id != 0)
{
gl.deleteBuffers(1, &m_bo_id);
m_bo_id = 0;
}
if (m_decompressed_mipmap_data != DE_NULL)
{
delete[] m_decompressed_mipmap_data;
m_decompressed_mipmap_data = DE_NULL;
}
if (m_mipmap_data != DE_NULL)
{
delete[] m_mipmap_data;
m_mipmap_data = DE_NULL;
}
if (m_po_id != 0)
{
gl.deleteProgram(m_po_id);
m_po_id = 0;
}
if (m_to_id != 0)
{
gl.deleteTextures(1, &m_to_id);
m_to_id = 0;
}
if (m_to_temp_id != 0)
{
gl.deleteTextures(1, &m_to_temp_id);
m_to_temp_id = 0;
}
if (m_vao_id != 0)
{
gl.deleteVertexArrays(1, &m_vao_id);
m_vao_id = 0;
}
if (m_view_to_id != 0)
{
gl.deleteTextures(1, &m_view_to_id);
m_view_to_id = 0;
}
if (m_vs_id != 0)
{
gl.deleteShader(m_vs_id);
m_vs_id = 0;
}
/* Bring back the default pixel storage settings that the test may have modified. */
gl.pixelStorei(GL_PACK_ALIGNMENT, 4);
gl.pixelStorei(GL_UNPACK_ALIGNMENT, 4);
/* Restore rasterization */
gl.enable(GL_RASTERIZER_DISCARD);
}
/** Reads user-specified amount of components and stores it in user-provided location,
* according to user-defined format (snorm, unorm, etc.) and component size.
*
* This function assumes component sizes are aligned on by boundary (that is: size % 8
* equals 0 for all components). An assertion failure will occur if this requirement is
* not met.
* This function throws TestError exception if any of the requested component sizes
* or format is not supported.
*
* @param data Raw data buffer to read the data from.
* @param n_components Amount of components to read.
* @param component_sizes 4 ints subsequently defining component size for R/G/B/A channels.
* Must not be NULL.
* @param format Format to be used for data retrieval. This defines data format of
* the underlying components (for instance: for UNORMs we need to
* divide the read ubyte/ushort/uint data by maximum value allowed for
* the type minus one)
* @param result Location to store the read components. Must not be NULL. Must be
* large enough to hold requested amount of components of user-specified
* component size.
*
**/
void TextureViewTestViewClasses::getComponentDataForByteAlignedInternalformat(const unsigned char* data,
const unsigned int n_components,
const unsigned int* component_sizes,
const _format format, void* result)
{
float* result_float = (float*)result;
signed int* result_sint = (signed int*)result;
unsigned int* result_uint = (unsigned int*)result;
/* Sanity checks: we assume the components are aligned on byte boundary. */
DE_ASSERT((component_sizes[0] % 8) == 0 && (component_sizes[1] % 8) == 0 && (component_sizes[2] % 8) == 0 &&
(component_sizes[3] % 8) == 0);
for (unsigned int n_component = 0; n_component < n_components;
data += (component_sizes[n_component] >> 3 /* 8 bits/byte */), ++n_component)
{
switch (format)
{
case FORMAT_FLOAT:
{
switch (component_sizes[n_component])
{
case 16:
result_float[n_component] = deFloat16To32(*(const deFloat16*)data);
break;
case 32:
result_float[n_component] = *(float*)data;
break;
default:
TCU_FAIL("Unsupported component size");
}
break;
}
case FORMAT_SIGNED_INTEGER:
{
switch (component_sizes[n_component])
{
case 8:
result_sint[n_component] = *(signed char*)data;
break;
case 16:
result_sint[n_component] = *(signed short*)data;
break;
case 32:
result_sint[n_component] = *(signed int*)data;
break;
default:
TCU_FAIL("Unsupported component size");
}
break;
}
case FORMAT_SNORM:
{
switch (component_sizes[n_component])
{
case 8:
result_float[n_component] = float(*(signed char*)data) / 127.0f;
break;
case 16:
result_float[n_component] = float(*(signed short*)data) / 32767.0f;
break;
default:
TCU_FAIL("Unsupported component size");
}
if (result_float[n_component] < -1.0f)
{
result_float[n_component] = -1.0f;
}
break;
}
case FORMAT_UNORM:
{
switch (component_sizes[n_component])
{
case 8:
result_float[n_component] = float(*((unsigned char*)data)) / 255.0f;
break;
case 16:
result_float[n_component] = float(*((unsigned short*)data)) / 65535.0f;
break;
default:
TCU_FAIL("Unsupported component size");
}
break;
}
case FORMAT_UNSIGNED_INTEGER:
{
switch (component_sizes[n_component])
{
case 8:
result_uint[n_component] = *(unsigned char*)data;
break;
case 16:
result_uint[n_component] = *(unsigned short*)data;
break;
case 32:
result_uint[n_component] = *(unsigned int*)data;
break;
default:
TCU_FAIL("Unsupported component size");
}
break;
}
default:
{
TCU_FAIL("Unrecognized mip-map format");
}
} /* switch (view_format) */
} /* for (all components) */
}
/** Initializes buffer object storage of sufficient size to hold data that will be
* XFBed out by the test's vertex shader, given user-specified parent texture &
* view's internalformats.
*
* Throws TestError exceptions if GL calls fail.
*
* @param texture_internalformat Internalformat used by the parent texture object,
* from which the view will be created.
* @param view_internalformat Internalformat that will be used by the texture view.
**/
void TextureViewTestViewClasses::initBufferObject(glw::GLenum texture_internalformat, glw::GLenum view_internalformat)
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Calculate how much size we will need to read the XFBed data. Each sampled data
* will either end up stored in a vecX, ivecX or uvecX (where X stands for amount
* of components supported by considered internalformat), so we can assume it will
* take a sizeof(float) = sizeof(int) = sizeof(unsigned int)
*/
const unsigned int parent_texture_n_components =
TextureViewUtilities::getAmountOfComponentsForInternalformat(texture_internalformat);
const unsigned int view_texture_n_components =
TextureViewUtilities::getAmountOfComponentsForInternalformat(view_internalformat);
/* Configure buffer object storage.
*
* NOTE: We do not care about the data type of the stored data, since sizes of the
* types we're interested in (floats, ints and uints) match.
*/
DE_ASSERT(sizeof(float) == sizeof(unsigned int) && sizeof(float) == sizeof(int));
m_bo_size =
static_cast<unsigned int>(parent_texture_n_components * sizeof(float) * m_texture_height * m_texture_width +
view_texture_n_components * sizeof(float) * m_texture_height * m_texture_width);
gl.bufferData(GL_TRANSFORM_FEEDBACK_BUFFER, m_bo_size, DE_NULL, /* data */
GL_STATIC_DRAW);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBufferData() call failed.");
/* For XFB, we'll be outputting data sampled from both the texture and the view.
* Sampled texture data will go to the first half of the buffer, and the corresponding
* view data will go to the one half.
*
* Store the offset, from which the view's data will start so that we can correctly
* configure buffer object bindings in initProgramObject()
**/
m_view_data_offset =
static_cast<unsigned int>(parent_texture_n_components * sizeof(float) * m_texture_height * m_texture_width);
}
/** Initializes a program object that should be used for the test, given
* user-specified texture and view internalformats.
*
* @param texture_internalformat Internalformat used by the parent texture object,
* from which the view will be created.
* @param view_internalformat Internalformat that will be used by the texture view.
**/
void TextureViewTestViewClasses::initProgramObject(glw::GLenum texture_internalformat, glw::GLenum view_internalformat)
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Determine which samplers we should be using for sampling both textures */
const unsigned int texture_n_components =
TextureViewUtilities::getAmountOfComponentsForInternalformat(texture_internalformat);
const _sampler_type texture_sampler_type =
TextureViewUtilities::getSamplerTypeForInternalformat(texture_internalformat);
const char* texture_sampler_data_type_glsl =
TextureViewUtilities::getGLSLDataTypeForSamplerType(texture_sampler_type, texture_n_components);
const char* texture_sampler_glsl = TextureViewUtilities::getGLSLTypeForSamplerType(texture_sampler_type);
const char* texture_swizzle_glsl =
(texture_n_components == 4) ? "xyzw" :
(texture_n_components == 3) ? "xyz" : (texture_n_components == 2) ? "xy" : "x";
const unsigned int view_n_components =
TextureViewUtilities::getAmountOfComponentsForInternalformat(view_internalformat);
const _sampler_type view_sampler_type = TextureViewUtilities::getSamplerTypeForInternalformat(view_internalformat);
const char* view_sampler_data_type_glsl =
TextureViewUtilities::getGLSLDataTypeForSamplerType(view_sampler_type, view_n_components);
const char* view_sampler_glsl = TextureViewUtilities::getGLSLTypeForSamplerType(view_sampler_type);
const char* view_swizzle_glsl =
(view_n_components == 4) ? "xyzw" : (view_n_components == 3) ? "xyz" : (view_n_components == 2) ? "xy" : "x";
/* Form vertex shader body */
const char* token_texture_data_type = "TEXTURE_DATA_TYPE";
const char* token_texture_sampler = "TEXTURE_SAMPLER";
const char* token_texture_swizzle = "TEXTURE_SWIZZLE";
const char* token_view_data_type = "VIEW_DATA_TYPE";
const char* token_view_sampler = "VIEW_SAMPLER";
const char* token_view_swizzle = "VIEW_SWIZZLE";
const char* vs_template_body = "#version 400\n"
"\n"
"uniform TEXTURE_SAMPLER texture;\n"
"uniform VIEW_SAMPLER view;\n"
"\n"
"out TEXTURE_DATA_TYPE out_texture_data;\n"
"out VIEW_DATA_TYPE out_view_data;\n"
"\n"
"void main()\n"
"{\n"
" ivec2 uv = ivec2(gl_VertexID % 4,\n"
" gl_VertexID / 4);\n"
"\n"
" out_texture_data = texelFetch(texture, uv, 0).TEXTURE_SWIZZLE;\n"
" out_view_data = texelFetch(view, uv, 0).VIEW_SWIZZLE;\n"
"}\n";
std::size_t token_position = std::string::npos;
std::string vs_body = vs_template_body;
while ((token_position = vs_body.find(token_texture_data_type)) != std::string::npos)
{
vs_body.replace(token_position, strlen(token_texture_data_type), texture_sampler_data_type_glsl);
}
while ((token_position = vs_body.find(token_texture_sampler)) != std::string::npos)
{
vs_body.replace(token_position, strlen(token_texture_sampler), texture_sampler_glsl);
}
while ((token_position = vs_body.find(token_texture_swizzle)) != std::string::npos)
{
vs_body.replace(token_position, strlen(token_texture_swizzle), texture_swizzle_glsl);
}
while ((token_position = vs_body.find(token_view_data_type)) != std::string::npos)
{
vs_body.replace(token_position, strlen(token_view_data_type), view_sampler_data_type_glsl);
}
while ((token_position = vs_body.find(token_view_sampler)) != std::string::npos)
{
vs_body.replace(token_position, strlen(token_view_sampler), view_sampler_glsl);
}
while ((token_position = vs_body.find(token_view_swizzle)) != std::string::npos)
{
vs_body.replace(token_position, strlen(token_view_swizzle), view_swizzle_glsl);
}
/* Compile the shader */
glw::GLint compile_status = GL_FALSE;
const char* vs_body_raw_ptr = vs_body.c_str();
gl.shaderSource(m_vs_id, 1 /* count */, &vs_body_raw_ptr, DE_NULL /* length */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glShaderSource() call failed.");
gl.compileShader(m_vs_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glCompileShader() call failed.");
gl.getShaderiv(m_vs_id, GL_COMPILE_STATUS, &compile_status);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetShaderiv() call failed.");
if (compile_status != GL_TRUE)
{
TCU_FAIL("Shader compilation failed");
}
/* Configure test program object for XFB */
const char* varying_names[] = { "out_texture_data", "out_view_data" };
const unsigned int n_varying_names = sizeof(varying_names) / sizeof(varying_names[0]);
gl.transformFeedbackVaryings(m_po_id, n_varying_names, varying_names, GL_SEPARATE_ATTRIBS);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTransformFeedbackVaryings() call failed.");
/* Configure buffer object bindings for XFB */
gl.bindBufferRange(GL_TRANSFORM_FEEDBACK_BUFFER, 0, /* index for 'out_texture_data' */
m_bo_id, 0, /* offset */
m_view_data_offset); /* size */
gl.bindBufferRange(GL_TRANSFORM_FEEDBACK_BUFFER, 1, /* index for 'out_view_data' */
m_bo_id, m_view_data_offset, /* offset */
m_bo_size - m_view_data_offset); /* size */
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBufferRange() call(s) failed.");
/* Link the program object */
glw::GLint link_status = GL_FALSE;
gl.linkProgram(m_po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glLinkProgram() call failed.");
gl.getProgramiv(m_po_id, GL_LINK_STATUS, &link_status);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetProgramiv() call failed.");
if (link_status != GL_TRUE)
{
TCU_FAIL("Program linking failed.");
}
/* Configure sampler uniforms */
glw::GLint texture_uniform_location = gl.getUniformLocation(m_po_id, "texture");
glw::GLint view_uniform_location = gl.getUniformLocation(m_po_id, "view");
if (texture_uniform_location == -1)
{
TCU_FAIL("'texture' uniform is considered inactive which is invalid");
}
if (view_uniform_location == -1)
{
TCU_FAIL("'view' uniform is considered inactive which is invalid");
}
gl.useProgram(m_po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram() call failed.");
gl.uniform1i(texture_uniform_location, m_texture_unit_for_parent_texture - GL_TEXTURE0);
gl.uniform1i(view_uniform_location, m_texture_unit_for_view_texture - GL_TEXTURE0);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i() call(s) failed.");
}
/** Creates GL objects required to run the test, as well as modifies GL
* configuration (pixel pack/unpack settings, enables 'rasterizer discard' mode)
* in order for the test to run properly.
**/
void TextureViewTestViewClasses::initTest()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Generate objects that will be used by all test iterations.
*
* Note that we're not generating texture objects here. This is owing to the fact
* we'll be using immutable textures and it makes more sense to generate the objects
* in initTexture() instead.
**/
gl.genBuffers(1, &m_bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenBuffers() call failed.");
m_po_id = gl.createProgram();
GLU_EXPECT_NO_ERROR(gl.getError(), "glCreateProgram() call failed.");
gl.genVertexArrays(1, &m_vao_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenVertexArrays() call failed.");
m_vs_id = gl.createShader(GL_VERTEX_SHADER);
GLU_EXPECT_NO_ERROR(gl.getError(), "glCreateShader() call failed.");
/* Attach the vertex shader to the program object */
gl.attachShader(m_po_id, m_vs_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glAttachShader() call failed.");
/* Configure general buffer object binding. Indiced bindings will be configured
* in initProgramObject()
*/
gl.bindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, m_bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer() call failed.");
gl.bindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0 /* index */, m_bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBufferBase() call failed.");
/* Bind the VAO */
gl.bindVertexArray(m_vao_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindVertexArray() call failed.");
/* Modify pack & unpack alignment settings */
gl.pixelStorei(GL_PACK_ALIGNMENT, 1);
gl.pixelStorei(GL_UNPACK_ALIGNMENT, 1);
GLU_EXPECT_NO_ERROR(gl.getError(), "glPixelStorei() call(s) failed.");
/* Disable rasterizatino */
gl.enable(GL_RASTERIZER_DISCARD);
GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable(GL_RASTERIZER_DISCARD) call failed.");
}
/** Generates and initializes storage of either the parent texture object or the
* texture view, using user-specified internalformat.
*
* @param should_init_parent_texture true to initialize parent texture object storage,
* false to configure texture view.
* @param internalformat Internalformat to use for the process.
* @param viewformat Internalformat that will be used by "view" texture.
*
**/
void TextureViewTestViewClasses::initTextureObject(bool should_init_parent_texture, glw::GLenum texture_internalformat,
glw::GLenum view_internalformat)
{
glw::GLenum cached_view_internalformat = view_internalformat;
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
glw::GLuint* to_id_ptr = (should_init_parent_texture) ? &m_to_id : &m_view_to_id;
/* If the object we're about to initialize has already been created, delete it first. */
if (*to_id_ptr != 0)
{
gl.deleteTextures(1, to_id_ptr);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDeleteTextures() call failed.");
*to_id_ptr = 0;
}
/* Generate a new texture object */
gl.genTextures(1, to_id_ptr);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call failed.");
/* Initialize the object */
if (should_init_parent_texture)
{
gl.bindTexture(GL_TEXTURE_2D, *to_id_ptr);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
gl.texStorage2D(GL_TEXTURE_2D, 1, /* levels */
texture_internalformat, m_texture_width, m_texture_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed.");
}
else
{
gl.textureView(m_view_to_id, GL_TEXTURE_2D, m_to_id, view_internalformat, 0, /* minlevel */
1, /* numlevels */
0, /* minlayer */
1); /* numlayers */
GLU_EXPECT_NO_ERROR(gl.getError(), "glTextureView() call failed.");
gl.bindTexture(GL_TEXTURE_2D, m_view_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
}
if (should_init_parent_texture)
{
/* We need to fill the base mip-map with actual contents. Calculate how much
* data we will need to fill a 4x4 mip-map, given the requested internalformat.
*/
bool is_internalformat_compressed = TextureViewUtilities::isInternalformatCompressed(texture_internalformat);
glw::GLenum internalformat_to_use = GL_NONE;
if (is_internalformat_compressed)
{
/* In order to initialize texture objects defined with a compressed internalformat
* using raw decompressed data, we need to override caller-specified internalformat
* with an internalformat that will describe decompressed data. The data will then
* be converted by GL to the compressed internalformat that was used for the previous
* glTexStorage2D() call.
**/
_format format = TextureViewUtilities::getFormatOfInternalformat(texture_internalformat);
if (format == FORMAT_FLOAT)
{
internalformat_to_use = GL_RGBA32F;
}
else
{
DE_ASSERT(format == FORMAT_UNORM || format == FORMAT_SNORM);
internalformat_to_use = GL_RGBA8;
}
view_internalformat = internalformat_to_use;
}
else
{
internalformat_to_use = texture_internalformat;
}
/* Allocate the buffer.
*
* NOTE: This buffer is used in verifyResults(). When no longer needed, it will either
* be deallocated there or in deinit().
**/
glw::GLenum format_to_use = TextureViewUtilities::getGLFormatOfInternalformat(internalformat_to_use);
glw::GLenum type_to_use = TextureViewUtilities::getTypeCompatibleWithInternalformat(internalformat_to_use);
const glw::GLenum view_type = TextureViewUtilities::getTypeCompatibleWithInternalformat(view_internalformat);
/* For some internalformats, we need to use a special data type in order to avoid
* implicit data conversion during glTexSubImage2D() call.
*/
switch (texture_internalformat)
{
case GL_R11F_G11F_B10F:
type_to_use = GL_UNSIGNED_INT_10F_11F_11F_REV;
break;
case GL_RGB9_E5:
type_to_use = GL_UNSIGNED_INT_5_9_9_9_REV;
break;
case GL_RGB10_A2:
type_to_use = GL_UNSIGNED_INT_2_10_10_10_REV;
break;
/* Fall-through for other internalformats! */
} /* switch (texture_internalformat) */
/* Carry on */
const unsigned int mipmap_raw_size = TextureViewUtilities::getTextureDataSize(
internalformat_to_use, type_to_use, m_texture_width, m_texture_height);
if (m_mipmap_data != NULL)
{
delete[] m_mipmap_data;
m_mipmap_data = NULL;
}
m_mipmap_data = new unsigned char[mipmap_raw_size];
/* Prepare data for texture */
memset(m_mipmap_data, 0, mipmap_raw_size);
switch (view_type)
{
case GL_BYTE:
{
glw::GLbyte* buffer = (glw::GLbyte*)m_mipmap_data;
const glw::GLuint n_total_components = mipmap_raw_size / 1;
for (glw::GLuint i = 0; i < n_total_components; ++i)
{
buffer[i] = static_cast<glw::GLbyte>(i - 128);
}
break;
}
case GL_SHORT:
{
glw::GLshort* buffer = (glw::GLshort*)m_mipmap_data;
const glw::GLuint n_total_components = mipmap_raw_size / 2;
for (glw::GLuint i = 0; i < n_total_components; ++i)
{
buffer[i] = static_cast<glw::GLshort>(i - 0xC000); // 0xC000 = (fp16) -2 makes this non de-norm
}
break;
}
case GL_INT:
{
glw::GLint* buffer = (glw::GLint*)m_mipmap_data;
const glw::GLuint n_total_components = mipmap_raw_size / 4;
for (glw::GLuint i = 0; i < n_total_components; ++i)
{
buffer[i] = i - 128;
}
break;
}
case GL_UNSIGNED_BYTE:
{
glw::GLubyte* buffer = (glw::GLubyte*)m_mipmap_data;
const glw::GLuint n_total_components = mipmap_raw_size / 1;
for (glw::GLuint i = 0; i < n_total_components; ++i)
{
buffer[i] = static_cast<glw::GLubyte>(i);
}
break;
}
case GL_UNSIGNED_SHORT:
{
glw::GLushort* buffer = (glw::GLushort*)m_mipmap_data;
const glw::GLuint n_total_components = mipmap_raw_size / 2;
for (glw::GLuint i = 0; i < n_total_components; ++i)
{
buffer[i] = static_cast<glw::GLushort>(i);
}
break;
}
case GL_UNSIGNED_INT:
{
glw::GLuint* buffer = (glw::GLuint*)m_mipmap_data;
const glw::GLuint n_total_components = mipmap_raw_size / 4;
for (glw::GLuint i = 0; i < n_total_components; ++i)
{
buffer[i] = i;
}
break;
}
case GL_UNSIGNED_INT_24_8:
{
glw::GLuint* buffer = (glw::GLuint*)m_mipmap_data;
const glw::GLuint n_total_components = mipmap_raw_size / 4;
for (glw::GLuint i = 0; i < n_total_components; ++i)
{
buffer[i] = (i << 8) | (0xaa);
}
break;
}
case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
{
glw::GLfloat* float_buffer = (glw::GLfloat*)m_mipmap_data;
const glw::GLuint n_total_components = mipmap_raw_size / 8;
glw::GLuint* uint_buffer = (glw::GLuint*)(m_mipmap_data + 4);
for (glw::GLuint i = 0; i < n_total_components; ++i)
{
float_buffer[i * 2] = (float)i - 128;
uint_buffer[i * 2] = (i << 8) | (0xaa);
}
break;
}
case GL_HALF_FLOAT:
{
tcu::Float16* buffer = (tcu::Float16*)m_mipmap_data;
const glw::GLuint n_total_components = mipmap_raw_size / 2;
for (glw::GLuint i = 0; i < n_total_components; ++i)
{
float value = (float)i - 128;
buffer[i] = (tcu::Float16)value;
}
break;
}
case GL_FLOAT:
{
glw::GLfloat* float_buffer = (glw::GLfloat*)m_mipmap_data;
const glw::GLuint n_total_components = mipmap_raw_size / 4;
float offset = (cached_view_internalformat == GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT) ? 0.0f : -128.0f;
for (glw::GLuint i = 0; i < n_total_components; ++i)
{
float_buffer[i] = (float)i + offset;
}
break;
}
case GL_UNSIGNED_INT_2_10_10_10_REV:
{
glw::GLuint* buffer = (glw::GLuint*)m_mipmap_data;
const glw::GLuint n_total_components = mipmap_raw_size / 4;
for (glw::GLuint i = 0; i < n_total_components; ++i)
{
buffer[i] = i | (i << 8) | (i << 16);
}
break;
}
default:
{
TCU_FAIL("Unrecognized texture view type");
}
} /* switch (view_type) */
/* BPTC_FLOAT view class is a special case that needs an extra step. Signed and
* unsigned internal formats use different encodings, so instead of passing
* "regular" 32-bit floating-point data, we need to convert the values we initialized
* above to an actual BPTC representation. Since the encodings differ, we should
* compress these values using the internalformat that we will be later using for the
* texture view.
*/
unsigned int imageSize_to_use = 0;
bool use_glCompressedTexSubImage2D_call = false;
if ((cached_view_internalformat == GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT ||
cached_view_internalformat == GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT) &&
cached_view_internalformat != texture_internalformat)
{
/* Create a temporary texture object we'll use to compress the floating-point data. */
gl.genTextures(1, &m_to_temp_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call failed.");
gl.bindTexture(GL_TEXTURE_2D, m_to_temp_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
/* Initialize compressed storage */
gl.texStorage2D(GL_TEXTURE_2D, 1, /* levels */
cached_view_internalformat, m_texture_width, m_texture_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed.");
/* Submit floating-point decompressed data */
gl.texSubImage2D(GL_TEXTURE_2D, 0, /* level */
0, /* xoffset */
0, /* yoffset */
m_texture_width, m_texture_height, GL_RGB, GL_FLOAT, m_mipmap_data);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexSubImage2D() call failed.");
/* Extract the compressed version */
gl.getCompressedTexImage(GL_TEXTURE_2D, 0, /* level */
m_mipmap_data);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetCompressedTexImage() call failed.");
/* Delete the temporary texture object */
gl.deleteTextures(1, &m_to_temp_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDeleteTextures() call failed.");
m_to_temp_id = 0;
/* Revert to previous 2D texture binding */
gl.bindTexture(GL_TEXTURE_2D, m_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
/* Make sure upcoming glCompressedTexSubImage2D() call is made with sensible arguments */
imageSize_to_use = (unsigned int)ceil((float)m_texture_width / 4.0f) *
(unsigned int)ceil((float)m_texture_height / 4.0f) * 16; /* block size */
use_glCompressedTexSubImage2D_call = true;
}
/* Fill the mip-map with data */
if (use_glCompressedTexSubImage2D_call)
{
gl.compressedTexSubImage2D(GL_TEXTURE_2D, 0, /* level */
0, /* xoffset */
0, /* yoffset */
m_texture_width, m_texture_height, texture_internalformat, imageSize_to_use,
m_mipmap_data);
GLU_EXPECT_NO_ERROR(gl.getError(), "glCompressedTexSubImage2D() call failed.");
}
else
{
gl.texSubImage2D(GL_TEXTURE_2D, 0, /* level */
0, /* xoffset */
0, /* yoffset */
m_texture_width, m_texture_height, format_to_use, type_to_use, m_mipmap_data);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexSubImage2D() call failed.");
}
}
/* Make sure the texture object is complete */
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
GL_NEAREST); /* we're using texelFetch() so no mipmaps needed */
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexParameteri() call(s) failed.");
}
/** Executes test iteration.
*
* @return Returns STOP when test has finished executing, CONTINUE if more iterations are needed.
*/
tcu::TestNode::IterateResult TextureViewTestViewClasses::iterate()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Only execute the test if GL_ARB_texture_view is supported */
if (!m_context.getContextInfo().isExtensionSupported("GL_ARB_texture_view"))
{
throw tcu::NotSupportedError("GL_ARB_texture_view is not supported, skipping.");
}
/* Create all GL objects required to run the test */
initTest();
/* Iterate through all valid "texture internalformat + view internalformat" combinations */
TextureViewUtilities::_compatible_internalformat_pairs_const_iterator internalformat_combination_iterator;
TextureViewUtilities::_compatible_internalformat_pairs internalformat_combinations =
TextureViewUtilities::getLegalTextureAndViewInternalformatCombinations();
for (internalformat_combination_iterator = internalformat_combinations.begin();
internalformat_combination_iterator != internalformat_combinations.end();
internalformat_combination_iterator++)
{
TextureViewUtilities::_internalformat_pair internalformat_pair = *internalformat_combination_iterator;
glw::GLenum texture_internalformat = internalformat_pair.first;
glw::GLenum view_internalformat = internalformat_pair.second;
/* Initialize parent texture object storage */
initTextureObject(true, /* should_init_parent_texture */
texture_internalformat, view_internalformat);
/* Create the texture view */
initTextureObject(false, /* should_init_parent_texture */
texture_internalformat, view_internalformat);
/* Initialize buffer object storage so that it's large enough to
* hold the result data.
**/
initBufferObject(texture_internalformat, view_internalformat);
/* Create the program object we'll use for the test */
initProgramObject(texture_internalformat, view_internalformat);
/* Configure texture bindings */
gl.activeTexture(m_texture_unit_for_parent_texture);
GLU_EXPECT_NO_ERROR(gl.getError(), "glActiveTexture() call failed.");
gl.bindTexture(GL_TEXTURE_2D, m_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
gl.activeTexture(m_texture_unit_for_view_texture);
GLU_EXPECT_NO_ERROR(gl.getError(), "glActiveTexture() call failed.");
gl.bindTexture(GL_TEXTURE_2D, m_view_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
/* Run the test program */
gl.beginTransformFeedback(GL_POINTS);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBeginTransformFeedback() call failed.");
{
gl.drawArrays(GL_POINTS, 0 /* first */, m_texture_width * m_texture_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDrawArrays() call failed.");
}
gl.endTransformFeedback();
GLU_EXPECT_NO_ERROR(gl.getError(), "glEndTransformFeedback() call failed.");
/* Retrieve the results */
const unsigned char* result_bo_data_ptr =
(const unsigned char*)gl.mapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, GL_READ_ONLY);
const unsigned char* result_texture_data_ptr = result_bo_data_ptr;
const unsigned char* result_view_data_ptr = result_bo_data_ptr + m_view_data_offset;
GLU_EXPECT_NO_ERROR(gl.getError(), "glMapBuffer() call failed.");
/* Verify the retrieved values are valid */
verifyResultData(texture_internalformat, view_internalformat, result_texture_data_ptr, result_view_data_ptr);
/* Unmap the buffer object */
gl.unmapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUnmapBuffer() call failed.");
} /* for (all internalformat combinations) */
if (m_has_test_failed)
{
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Fail");
}
else
{
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
}
return STOP;
}
/** Verifies the data XFBed out by the test's vertex shader is valid.
*
* @param texture_internalformat Internalformat that was used to define storage
* of the parent texture object.
* @param view_internalformat Internalformat that was used to define texture
* view.
* @param texture_data_ptr Data, as XFBed out by the vertex shader, that was
* built by texelFetch() calls operating on the parent
* texture object.
* @param view_data_ptr Data, as XFBed out by the vertex shader, that was
* built by texelFetch() calls operating on the texture
* view.
*
**/
void TextureViewTestViewClasses::verifyResultData(glw::GLenum texture_internalformat, glw::GLenum view_internalformat,
const unsigned char* texture_data_ptr,
const unsigned char* view_data_ptr)
{
const char* texture_internalformat_string = TextureViewUtilities::getInternalformatString(texture_internalformat);
const char* view_internalformat_string = TextureViewUtilities::getInternalformatString(view_internalformat);
/* For quite a number of cases, we can do a plain memcmp() applied to sampled texture/view data.
* If both buffers are a match, we're OK.
*/
bool has_failed = false;
const unsigned char* mipmap_data = DE_NULL;
if (memcmp(texture_data_ptr, view_data_ptr, m_view_data_offset) != 0)
{
/* Iterate over all texel components.
*
* The approach we're taking here works as follows:
*
* 1) Calculate what values should be sampled for each component using input mipmap
* data.
* 2) Compare the reference values against the values returned when sampling the view.
*
* Note that in step 2) we're dealing with data that is returned by float/int/uint samplers,
* so we need to additionally process the data that we obtain by "casting" input data to
* the view's internalformat before we can perform the comparison.
*
* Finally, if the reference values are calculated for compressed data, we decompress it
* to GL_R8/GL_RG8/GL_RGB8/GL_RGBA8 internalformat first, depending on how many components
* the compressed internalformat supports.
**/
bool can_continue = true;
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Determine a few important properties first */
const bool is_view_internalformat_compressed =
TextureViewUtilities::isInternalformatCompressed(view_internalformat);
unsigned int n_bits_per_view_texel = 0;
const unsigned int n_view_components =
TextureViewUtilities::getAmountOfComponentsForInternalformat(view_internalformat);
_format texture_format = TextureViewUtilities::getFormatOfInternalformat(texture_internalformat);
unsigned int view_component_sizes[4] = { 0 };
_format view_format = TextureViewUtilities::getFormatOfInternalformat(view_internalformat);
if (!is_view_internalformat_compressed)
{
TextureViewUtilities::getComponentSizeForInternalformat(view_internalformat, view_component_sizes);
n_bits_per_view_texel =
view_component_sizes[0] + view_component_sizes[1] + view_component_sizes[2] + view_component_sizes[3];
}
else
{
if (texture_internalformat == GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT ||
texture_internalformat == GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT)
{
/* Each component of decompressed data will be retrieved as a 32-bit FP */
for (unsigned int n_component = 0; n_component < n_view_components; ++n_component)
{
view_component_sizes[n_component] = 32 /* bits per byte */;
}
n_bits_per_view_texel = 32 /* bits per byte */ * n_view_components;
}
else
{
/* Each component of decompressed data is stored as either signed or unsigned
* byte. */
for (unsigned int n_component = 0; n_component < n_view_components; ++n_component)
{
view_component_sizes[n_component] = 8 /* bits per byte */;
}
n_bits_per_view_texel = 8 /* bits per byte */ * n_view_components;
}
}
/* If we need to use compressed data as reference, we need to ask GL to decompress
* the mipmap data using view-specific internalformat.
*/
mipmap_data = m_mipmap_data;
if (is_view_internalformat_compressed)
{
/* Deallocate the buffer if necessary just in case */
if (m_decompressed_mipmap_data != DE_NULL)
{
delete[] m_decompressed_mipmap_data;
m_decompressed_mipmap_data = DE_NULL;
}
m_decompressed_mipmap_data =
new unsigned char[m_texture_width * m_texture_height * (n_bits_per_view_texel >> 3)];
glw::GLuint reference_tex_id = m_to_id;
if (texture_internalformat == GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT ||
texture_internalformat == GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT)
{
// Encodings of SIGNED and UNSIGNED BPTC compressed texture are not compatible
// even though they are in the same view class. Since the "view" texture contains
// the correct encoding for the results we use that as a reference instead of the
// incompatible parent encoded.
reference_tex_id = m_view_to_id;
}
gl.bindTexture(GL_TEXTURE_2D, reference_tex_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
gl.getTexImage(GL_TEXTURE_2D, 0, /* level */
(n_view_components == 4) ?
GL_RGBA :
(n_view_components == 3) ? GL_RGB : (n_view_components == 2) ? GL_RG : GL_RED,
(texture_format == FORMAT_SNORM) ?
GL_BYTE :
(texture_format == FORMAT_FLOAT) ? GL_FLOAT : GL_UNSIGNED_BYTE,
m_decompressed_mipmap_data);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetTexImage() call failed.");
mipmap_data = m_decompressed_mipmap_data;
}
for (unsigned int n_texel = 0; n_texel < m_texture_height * m_texture_width && can_continue; ++n_texel)
{
/* NOTE: Vertex shader stores the sampled contents of a view texture as a
* vec4/ivec4/uvec4. This means that each comonent in view_data_ptr
* always takes sizeof(float) = sizeof(int) = sizeof(uint) bytes.
*
* NOTE: We cast input mip-map's data to view's internalformat, which is
* why we're assuming each components takes n_bits_per_view_texel
* bits instead of n_bits_per_mipmap_texel.
*/
const unsigned char* mipmap_texel_data =
mipmap_data + (n_bits_per_view_texel >> 3 /* 8 bits/byte */) * n_texel;
float reference_components_float[4] = { 0 };
signed int reference_components_int[4] = { 0 };
unsigned int reference_components_uint[4] = { 0 };
float view_components_float[4] = { 0 };
signed int view_components_int[4] = { 0 };
unsigned int view_components_uint[4] = { 0 };
_sampler_type view_sampler_type =
TextureViewUtilities::getSamplerTypeForInternalformat(view_internalformat);
const unsigned char* view_texel_data = view_data_ptr + sizeof(float) * n_view_components * n_texel;
/* Retrieve data sampled from the view */
for (unsigned int n_component = 0; n_component < n_view_components;
view_texel_data += sizeof(float), /* as per comment */
++n_component)
{
switch (view_sampler_type)
{
case SAMPLER_TYPE_FLOAT:
{
view_components_float[n_component] = *((float*)view_texel_data);
break;
}
case SAMPLER_TYPE_SIGNED_INTEGER:
{
view_components_int[n_component] = *((signed int*)view_texel_data);
break;
}
case SAMPLER_TYPE_UNSIGNED_INTEGER:
{
view_components_uint[n_component] = *((unsigned int*)view_texel_data);
break;
}
default:
{
TCU_FAIL("Unrecognized sampler type");
}
} /* switch (view_sampler_type) */
} /* for (all components) */
/* Compute reference data. Handle non-byte aligned internalformats manually. */
if (view_internalformat == GL_R11F_G11F_B10F)
{
const unsigned int* reference_data = (unsigned int*)mipmap_texel_data;
const unsigned int red_component = (*reference_data) & ((1 << 11) - 1);
const unsigned int green_component = (*reference_data >> 11) & ((1 << 11) - 1);
const unsigned int blue_component = (*reference_data >> 22) & ((1 << 10) - 1);
if (view_sampler_type == SAMPLER_TYPE_FLOAT)
{
reference_components_float[0] = Float11(red_component).asFloat();
reference_components_float[1] = Float11(green_component).asFloat();
reference_components_float[2] = Float10(blue_component).asFloat();
}
else
{
TCU_FAIL("Internal error: invalid sampler type requested");
}
}
else if (view_internalformat == GL_RGB9_E5)
{
/* Refactored version of tcuTexture.cpp::unpackRGB999E5() */
const unsigned int* reference_data = (unsigned int*)mipmap_texel_data;
const unsigned int exponent = (*reference_data >> 27) & ((1 << 5) - 1);
const unsigned int red_component = (*reference_data) & ((1 << 9) - 1);
const unsigned int green_component = (*reference_data >> 9) & ((1 << 9) - 1);
const unsigned int blue_component = (*reference_data >> 18) & ((1 << 9) - 1);
float shared_exponent =
deFloatPow(2.0f, (float)((int)exponent - 15 /* exponent bias */ - 9 /* mantissa */));
if (view_sampler_type == SAMPLER_TYPE_FLOAT)
{
reference_components_float[0] = float(red_component) * shared_exponent;
reference_components_float[1] = float(green_component) * shared_exponent;
reference_components_float[2] = float(blue_component) * shared_exponent;
}
else
{
TCU_FAIL("Internal error: invalid sampler type requested");
}
}
else if (view_internalformat == GL_RGB10_A2)
{
unsigned int* reference_data = (unsigned int*)mipmap_texel_data;
const unsigned int mask_rgb = (1 << 10) - 1;
const unsigned int mask_a = (1 << 2) - 1;
if (view_sampler_type == SAMPLER_TYPE_FLOAT)
{
reference_components_float[0] = float(((*reference_data)) & (mask_rgb)) / float(mask_rgb);
reference_components_float[1] = float(((*reference_data) >> 10) & (mask_rgb)) / float(mask_rgb);
reference_components_float[2] = float(((*reference_data) >> 20) & (mask_rgb)) / float(mask_rgb);
reference_components_float[3] = float(((*reference_data) >> 30) & (mask_a)) / float(mask_a);
}
else
{
TCU_FAIL("Internal error: invalid sampler type requested");
}
}
else if (view_internalformat == GL_RGB10_A2UI)
{
unsigned int* reference_data = (unsigned int*)mipmap_texel_data;
const unsigned int mask_rgb = (1 << 10) - 1;
const unsigned int mask_a = (1 << 2) - 1;
if (view_sampler_type == SAMPLER_TYPE_UNSIGNED_INTEGER)
{
reference_components_uint[0] = ((*reference_data)) & (mask_rgb);
reference_components_uint[1] = ((*reference_data) >> 10) & (mask_rgb);
reference_components_uint[2] = ((*reference_data) >> 20) & (mask_rgb);
reference_components_uint[3] = ((*reference_data) >> 30) & (mask_a);
}
else
{
TCU_FAIL("Internal error: invalid sampler type requested");
}
}
else if (view_internalformat == GL_RG16F)
{
unsigned short* reference_data = (unsigned short*)mipmap_texel_data;
if (view_sampler_type == SAMPLER_TYPE_FLOAT)
{
reference_components_float[0] = tcu::Float16(*(reference_data + 0)).asFloat();
reference_components_float[1] = tcu::Float16(*(reference_data + 1)).asFloat();
}
else
{
TCU_FAIL("Internal error: invalid sampler type requested");
}
}
else
{
void* result_data = NULL;
switch (view_sampler_type)
{
case SAMPLER_TYPE_FLOAT:
result_data = reference_components_float;
break;
case SAMPLER_TYPE_SIGNED_INTEGER:
result_data = reference_components_int;
break;
case SAMPLER_TYPE_UNSIGNED_INTEGER:
result_data = reference_components_uint;
break;
default:
TCU_FAIL("Unrecognized sampler type");
}
getComponentDataForByteAlignedInternalformat(mipmap_texel_data, n_view_components, view_component_sizes,
view_format, result_data);
}
for (unsigned int n_component = 0; n_component < n_view_components; ++n_component)
{
/* If view texture operates on sRGB color space, we need to adjust our
* reference value so that it is moved back into linear space.
*/
if (TextureViewUtilities::isInternalformatSRGB(view_internalformat) &&
!TextureViewUtilities::isInternalformatSRGB(texture_internalformat))
{
DE_ASSERT(view_sampler_type == SAMPLER_TYPE_FLOAT);
/* Convert as per (8.14) from GL4.4 spec. Exclude alpha channel. */
if (n_component != 3)
{
if (reference_components_float[n_component] <= 0.04045f)
{
reference_components_float[n_component] /= 12.92f;
}
else
{
reference_components_float[n_component] =
deFloatPow((reference_components_float[n_component] + 0.055f) / 1.055f, 2.4f);
}
} /* if (n_component != 3) */
} /* if (TextureViewUtilities::isInternalformatSRGB(view_internalformat) ) */
/* Compare the reference and view texture values */
const float epsilon_float = 1.0f / float((1 << (view_component_sizes[n_component] - 1)) - 1);
const signed int epsilon_int = 1;
const unsigned int epsilon_uint = 1;
switch (view_sampler_type)
{
case SAMPLER_TYPE_FLOAT:
{
if (de::abs(reference_components_float[n_component] - view_components_float[n_component]) >
epsilon_float)
{
has_failed = true;
}
break;
}
case SAMPLER_TYPE_SIGNED_INTEGER:
{
signed int larger_value = 0;
signed int smaller_value = 0;
if (reference_components_int[n_component] > view_components_int[n_component])
{
larger_value = reference_components_int[n_component];
smaller_value = view_components_int[n_component];
}
else
{
smaller_value = reference_components_int[n_component];
larger_value = view_components_int[n_component];
}
if ((larger_value - smaller_value) > epsilon_int)
{
has_failed = true;
}
break;
}
case SAMPLER_TYPE_UNSIGNED_INTEGER:
{
unsigned int larger_value = 0;
unsigned int smaller_value = 0;
if (reference_components_uint[n_component] > view_components_uint[n_component])
{
larger_value = reference_components_uint[n_component];
smaller_value = view_components_uint[n_component];
}
else
{
smaller_value = reference_components_uint[n_component];
larger_value = view_components_uint[n_component];
}
if ((larger_value - smaller_value) > epsilon_uint)
{
has_failed = true;
}
break;
}
default:
TCU_FAIL("Unrecognized sampler type");
} /* switch (view_sampler_type) */
if (has_failed)
{
can_continue = false;
switch (view_sampler_type)
{
case SAMPLER_TYPE_FLOAT:
{
m_testCtx.getLog() << tcu::TestLog::Message << "Invalid data sampled from a texture view "
"["
<< view_internalformat_string << "]"
" created from a texture object"
"["
<< texture_internalformat_string << "]"
" at texel "
"("
<< (n_texel % m_texture_width) << ", " << (n_texel / m_texture_height)
<< "): expected:(" << reference_components_float[0] << ", "
<< reference_components_float[1] << ", " << reference_components_float[2]
<< ", " << reference_components_float[3] << ") found:("
<< view_components_float[0] << ", " << view_components_float[1] << ", "
<< view_components_float[2] << ", " << view_components_float[3] << ")."
<< tcu::TestLog::EndMessage;
break;
}
case SAMPLER_TYPE_SIGNED_INTEGER:
{
m_testCtx.getLog()
<< tcu::TestLog::Message << "Invalid data sampled from a signed integer texture view "
"["
<< view_internalformat_string << "]"
" created from a texture object"
"["
<< texture_internalformat_string << "]"
" at texel "
"("
<< (n_texel % m_texture_width) << ", " << (n_texel / m_texture_height) << "): expected:("
<< reference_components_int[0] << ", " << reference_components_int[1] << ", "
<< reference_components_int[2] << ", " << reference_components_int[3] << ") found:("
<< view_components_int[0] << ", " << view_components_int[1] << ", "
<< view_components_int[2] << ", " << view_components_int[3] << ")."
<< tcu::TestLog::EndMessage;
break;
}
case SAMPLER_TYPE_UNSIGNED_INTEGER:
{
m_testCtx.getLog()
<< tcu::TestLog::Message << "Invalid data sampled from an unsigned integer texture view "
"["
<< view_internalformat_string << "]"
" created from a texture object"
"["
<< texture_internalformat_string << "]"
" at texel "
"("
<< (n_texel % m_texture_width) << ", " << (n_texel / m_texture_height) << "): expected:("
<< reference_components_uint[0] << ", " << reference_components_uint[1] << ", "
<< reference_components_uint[2] << ", " << reference_components_uint[3] << ") found:("
<< view_components_uint[0] << ", " << view_components_uint[1] << ", "
<< view_components_uint[2] << ", " << view_components_uint[3] << ")."
<< tcu::TestLog::EndMessage;
break;
}
default:
TCU_FAIL("Unrecognized sampler type");
} /* switch (view_sampler_type) */
break;
} /* if (has_failed) */
} /* for (all components) */
} /* for (all texels) */
} /* if (memcmp(texture_data_ptr, view_data_ptr, m_view_data_offset) != 0) */
if (has_failed)
{
/* Log detailed information about the failure */
m_testCtx.getLog() << tcu::TestLog::Message << "Invalid data read from a view of internalformat "
<< "[" << view_internalformat_string << "]"
<< " created from a texture of internalformat "
<< "[" << texture_internalformat_string << "]"
<< ". Byte streams follow:" << tcu::TestLog::EndMessage;
/* Form texture and view data strings */
std::stringstream mipmap_data_sstream;
std::stringstream sampled_view_data_sstream;
mipmap_data_sstream.fill('0');
sampled_view_data_sstream.fill('0');
mipmap_data_sstream.width(2);
sampled_view_data_sstream.width(2);
mipmap_data_sstream << "Mip-map data: [";
sampled_view_data_sstream << "Sampled view data: [";
for (unsigned int n = 0; n < m_view_data_offset; ++n)
{
mipmap_data_sstream << "0x" << std::hex << (int)(mipmap_data[n]);
sampled_view_data_sstream << "0x" << std::hex << (int)(view_data_ptr[n]);
if (n != (m_view_data_offset - 1))
{
mipmap_data_sstream << "|";
sampled_view_data_sstream << "|";
}
else
{
mipmap_data_sstream << "]";
sampled_view_data_sstream << "]";
}
}
sampled_view_data_sstream << "\n";
mipmap_data_sstream << "\n";
/* Log both strings */
m_testCtx.getLog() << tcu::TestLog::Message << mipmap_data_sstream.str() << sampled_view_data_sstream.str()
<< tcu::TestLog::EndMessage;
/* Do not fail the test at this point. Instead, raise a failure flag that will
* cause the test to fail once all iterations execute */
m_has_test_failed = true;
}
else
{
m_testCtx.getLog() << tcu::TestLog::Message << "Correct data read from a view of internalformat "
<< "[" << view_internalformat_string << "]"
<< " created from a texture of internalformat "
<< "[" << texture_internalformat_string << "]" << tcu::TestLog::EndMessage;
}
}
/** Constructor.
*
* @param context Rendering context.
*
**/
TextureViewTestCoherency::TextureViewTestCoherency(deqp::Context& context)
: TestCase(context, "coherency", "Verifies view/parent texture coherency")
, m_are_images_supported(false)
, m_bo_id(0)
, m_draw_fbo_id(0)
, m_gradient_verification_po_id(0)
, m_gradient_verification_po_sample_exact_uv_location(-1)
, m_gradient_verification_po_lod_location(-1)
, m_gradient_verification_po_texture_location(-1)
, m_gradient_verification_vs_id(0)
, m_gradient_image_write_image_size_location(-1)
, m_gradient_image_write_po_id(0)
, m_gradient_image_write_vs_id(0)
, m_gradient_write_po_id(0)
, m_gradient_write_fs_id(0)
, m_gradient_write_vs_id(0)
, m_read_fbo_id(0)
, m_static_to_id(0)
, m_to_id(0)
, m_vao_id(0)
, m_view_to_id(0)
, m_verification_po_expected_color_location(-1)
, m_verification_po_lod_location(-1)
, m_verification_po_id(0)
, m_verification_vs_id(0)
, m_static_texture_height(1)
, m_static_texture_width(1)
, m_texture_height(64)
, m_texture_n_components(4)
, m_texture_n_levels(7)
, m_texture_width(64)
{
/* Initialize static color that will be used for some of the cases */
m_static_color_byte[0] = 100;
m_static_color_byte[1] = 0;
m_static_color_byte[2] = 255;
m_static_color_byte[3] = 200;
m_static_color_float[0] = float(m_static_color_byte[0]) / 255.0f;
m_static_color_float[1] = float(m_static_color_byte[1]) / 255.0f;
m_static_color_float[2] = float(m_static_color_byte[2]) / 255.0f;
m_static_color_float[3] = float(m_static_color_byte[3]) / 255.0f;
}
/** Verifies that texture/view & view/texture coherency requirement is met
* when glTexSubImage2D() or glBlitFramebuffer() API calls are used to modify
* the contents of one of the mip-maps. The function does not use any memory
* barriers as these are not required for the objects to stay synchronised.
*
* Throws TestError exceptionif the GL implementation fails the check.
*
* @param texture_type Defines whether it should be parent texture or
* its view that the writing operation should be
* performed against. The reading operation will
* be issued against the sibling object.
* @param should_use_glTexSubImage2D true if glTexSubImage2D() should be used for the
* check, false to use glBlitFramebuffer().
*
**/
void TextureViewTestCoherency::checkAPICallCoherency(_texture_type texture_type, bool should_use_glTexSubImage2D)
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
unsigned int write_to_height = 0;
unsigned int write_to_width = 0;
glw::GLuint write_to_id = 0;
getWritePropertiesForTextureType(texture_type, &write_to_id, &write_to_width, &write_to_height);
if (should_use_glTexSubImage2D)
{
/* Update texture binding for texture unit 0, given the texture type the caller wants
* us to test. We'll need the binding set appropriately for the subsequent
* glTexSubImage2D() call.
*/
gl.activeTexture(GL_TEXTURE0);
GLU_EXPECT_NO_ERROR(gl.getError(), "glActiveTexture() call failed.");
gl.bindTexture(GL_TEXTURE_2D, write_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
}
else
{
/* To perform a blit operation, we need to configure draw & read FBO, taking
* the tested texture type into account. */
gl.bindFramebuffer(GL_DRAW_FRAMEBUFFER, m_draw_fbo_id);
gl.bindFramebuffer(GL_READ_FRAMEBUFFER, m_read_fbo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindFramebuffer call(s) failed.");
gl.framebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, write_to_id, 1); /* level */
GLU_EXPECT_NO_ERROR(gl.getError(), "glFramebufferTexture2D() call failed for GL_DRAW_FRAMEBUFFER target.");
gl.framebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_static_to_id,
0); /* level */
GLU_EXPECT_NO_ERROR(gl.getError(), "glFramebufferTexture2D() call failed for GL_READ_FRAMEBUFFER target.");
}
/* Execute the API call */
const unsigned int region_width = (write_to_width >> 1);
const unsigned int region_height = (write_to_height >> 1);
const unsigned int region_x = region_width - (region_width >> 1);
const unsigned int region_y = region_height - (region_height >> 1);
if (should_use_glTexSubImage2D)
{
/* Call glTexSubImage2D() to replace a portion of the gradient with a static color */
{
unsigned char* static_color_data_ptr = getStaticColorTextureData(region_width, region_height);
gl.texSubImage2D(GL_TEXTURE_2D, 1, /* level */
region_x, region_y, region_width, region_height, GL_RGBA, GL_UNSIGNED_BYTE,
static_color_data_ptr);
/* Good to release static color data buffer at this point */
delete[] static_color_data_ptr;
static_color_data_ptr = DE_NULL;
/* Make sure the API call was successful */
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexSubImage2D() call failed.");
}
}
else
{
gl.blitFramebuffer(0, /* srcX0 */
0, /* srcY0 */
m_static_texture_width, /* srcX1 */
m_static_texture_height, /* srcY1 */
region_x, region_y, region_x + region_width, region_y + region_height, GL_COLOR_BUFFER_BIT,
GL_NEAREST);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBlitFramebuffer() call failed.");
}
/* Bind the sibling object so that we can make sure the data read from the
* region can be correctly read from a shader without a memory barrier.
*
* While we're here, also determine which LOD we should be sampling from in
* the shader.
**/
unsigned int read_lod = 0;
glw::GLuint read_to_id = 0;
getReadPropertiesForTextureType(texture_type, &read_to_id, &read_lod);
gl.bindTexture(GL_TEXTURE_2D, read_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
/* Update the test program uniforms before we carry on with actual
* verification
*/
gl.useProgram(m_verification_po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram() call failed.");
DE_STATIC_ASSERT(sizeof(m_static_color_float) == sizeof(float) * 4);
gl.uniform4fv(m_verification_po_expected_color_location, 1, /* count */
m_static_color_float);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform4fv() call failed.");
gl.uniform1i(m_verification_po_lod_location, read_lod);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i() call failed.");
/* Make sure rasterization is disabled before we carry on */
gl.enable(GL_RASTERIZER_DISCARD);
GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable() call failed.");
/* Go ahead with the rendering. Make sure to capture the varyings */
gl.beginTransformFeedback(GL_POINTS);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBeginTransformFeedback() call failed.");
{
gl.drawArrays(GL_POINTS, 0 /* first */, 1 /* count */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDrawArrays() call failed.");
}
gl.endTransformFeedback();
GLU_EXPECT_NO_ERROR(gl.getError(), "glEndTransformFeedback() call failed.");
/* Map the buffer object so we can validate the sampling result */
const glw::GLint* data_ptr = (const glw::GLint*)gl.mapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, GL_READ_ONLY);
GLU_EXPECT_NO_ERROR(gl.getError(), "glMapBuffer() call failed.");
DE_ASSERT(data_ptr != NULL);
/* Verify the outcome of the sampling operation */
if (*data_ptr != 1)
{
TCU_FAIL("Invalid data was sampled in vertex shader");
}
/* Unmap the buffer object */
gl.unmapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUnmapBuffer() call failed.");
data_ptr = DE_NULL;
/* Disable GL_RASTERIZER_DISCARD mode */
gl.disable(GL_RASTERIZER_DISCARD);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDisable() call failed.");
}
/** Verifies texture/view & view/texture coherency is met when one of the objects
* is used as a render-target. The function writes to user-specified texture type,
* and then verifies the contents of the sibling object.
*
* The function throws TestError exception if any of the checks fail.
*
* @param texture_type Tells which of the two objects should be written to.
* @param should_use_images true if images should be used for
* @param barrier_type Type of the memory barrier that should be injected
* after vertex shader stage with image writes is executed.
* Must be BARRIER_TYPE_NONE if @param should_use_images
* is set to false.
* @param verification_mean Determines whether the verification should be performed
* using a program object, or by CPU with the data
* extracted from the sibling object using a glGetTexImage()
* call.
*
**/
void TextureViewTestCoherency::checkProgramWriteCoherency(_texture_type texture_type, bool should_use_images,
_barrier_type barrier_type,
_verification_mean verification_mean)
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
if (!should_use_images)
{
/* Sanity check: no barrier should be requested if images are not used */
DE_ASSERT(barrier_type == BARRIER_TYPE_NONE);
/* Sanity check: glGetTexImage*() call should only be used for verification
* when images are used */
DE_ASSERT(verification_mean == VERIFICATION_MEAN_PROGRAM);
}
/* Determine GL id of an object we will be rendering the gradient to */
glw::GLuint write_to_id = 0;
unsigned int write_to_width = 0;
unsigned int write_to_height = 0;
getWritePropertiesForTextureType(texture_type, &write_to_id, &write_to_width, &write_to_height);
/* Configure the render targets */
if (should_use_images)
{
gl.bindImageTexture(0, /* unit */
write_to_id, 1, /* second level */
GL_FALSE, /* layered */
0, /* layer */
GL_WRITE_ONLY, GL_RGBA8);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindImageTexture() call failed.");
}
else
{
/* We first need to fill either the texture or its sibling view with
* gradient data. Set up draw framebuffer */
gl.bindFramebuffer(GL_FRAMEBUFFER, m_draw_fbo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindFramebuffer() call failed for GL_FRAMEBUFFER target");
gl.framebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, write_to_id, 1); /* level */
GLU_EXPECT_NO_ERROR(gl.getError(), "glFramebufferTexture2D() call failed.");
/* Configure the viewport accordingly */
gl.viewport(0, /* x */
0, /* y */
write_to_width, write_to_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport() call failed.");
}
/* The gradient needs to be rendered differently, depending on whether
* we're asked to use images or not */
if (should_use_images)
{
gl.useProgram(m_gradient_image_write_po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram() call failed.");
gl.uniform2i(m_gradient_image_write_image_size_location, write_to_width, write_to_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform2i() call failed.");
gl.enable(GL_RASTERIZER_DISCARD);
GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable(GL_RASTERIZER_DISCARD) call failed.");
{
gl.drawArrays(GL_POINTS, 0 /* first */, write_to_width * write_to_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDrawArrays() call failed.");
}
gl.disable(GL_RASTERIZER_DISCARD);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDisable(GL_RASTERIZER_DISCARD) call failed.");
/* If the caller requested any barriers, issue them at this point */
switch (barrier_type)
{
case BARRIER_TYPE_TEXTURE_FETCH_BARRIER_BIT:
{
gl.memoryBarrier(GL_TEXTURE_FETCH_BARRIER_BIT);
GLU_EXPECT_NO_ERROR(gl.getError(),
"glMemoryBarrier() call failed for GL_TEXTURE_FETCH_BARRIER_BIT barrier");
break;
}
case BARRIER_TYPE_TEXTURE_UPDATE_BUFFER_BIT:
{
gl.memoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT);
GLU_EXPECT_NO_ERROR(gl.getError(),
"glMemoryBarrier() call failed for GL_TEXTURE_UPDATE_BARRIER_BIT barrier");
break;
}
default:
{
TCU_FAIL("Unrecognized barrier type");
}
} /* switch (barrier_type) */
} /* if (should_use_images) */
else
{
/* Render the gradient on a full-screen quad */
gl.useProgram(m_gradient_write_po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "gluseProgram() call failed.");
gl.drawArrays(GL_TRIANGLE_STRIP, 0 /* first */, 4 /* count */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDrawArrays() call failed.");
}
/* Determine which texture and which mip-map level we will need to sample
* in order to verify whether the former operations have been completed
* successfully.
**/
unsigned int read_lod = 0;
glw::GLuint read_to_id = 0;
getReadPropertiesForTextureType(texture_type, &read_to_id, &read_lod);
/* Before we proceed with verification, update the texture binding so that
* the verification program can sample from the right texture */
gl.activeTexture(GL_TEXTURE0);
GLU_EXPECT_NO_ERROR(gl.getError(), "glActiveTexture() call failed.");
gl.bindTexture(GL_TEXTURE_2D, read_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
if (verification_mean == VERIFICATION_MEAN_PROGRAM)
{
/* Switch to a verification program. It uses a vertex shader to sample
* all texels of the texture so issue as many invocations as necessary. */
unsigned int n_invocations = write_to_width * write_to_height;
gl.useProgram(m_gradient_verification_po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram() call failed.");
gl.uniform1i(m_gradient_verification_po_texture_location, 0);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i() call failed.");
gl.uniform1i(m_gradient_verification_po_sample_exact_uv_location, should_use_images);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i() call failed.");
gl.uniform1f(m_gradient_verification_po_lod_location, (float)read_lod);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1f() call failed.");
gl.enable(GL_RASTERIZER_DISCARD);
GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable(GL_RASTERIZER_DISCARD) call failed.");
gl.beginTransformFeedback(GL_POINTS);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBeginTransformFeedback() call failed.");
{
gl.drawArrays(GL_POINTS, 0 /* first */, n_invocations);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDrawArrays() call failed.");
}
gl.endTransformFeedback();
GLU_EXPECT_NO_ERROR(gl.getError(), "glEndTransformFeedback() call failed.");
gl.disable(GL_RASTERIZER_DISCARD);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDisable(GL_RASTERIZER_DISCARD) call failed.");
/* Map the result buffer object storage into process space */
const int* result_data_ptr = (const int*)gl.mapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, GL_READ_ONLY);
GLU_EXPECT_NO_ERROR(gl.getError(), "glMapBuffer() call failed.");
if (result_data_ptr == DE_NULL)
{
TCU_FAIL("glMapBuffer() did not generate an error but returned a NULL pointer");
}
/* Verify the XFBed data */
for (unsigned int n_invocation = 0; n_invocation < n_invocations; ++n_invocation)
{
if (result_data_ptr[n_invocation] != 1)
{
unsigned int invocation_x = n_invocation % write_to_width;
unsigned int invocation_y = n_invocation / write_to_width;
m_testCtx.getLog() << tcu::TestLog::Message << "Invalid data was sampled at "
<< "(" << invocation_x << ", " << invocation_y << ") when sampling from "
<< ((texture_type == TEXTURE_TYPE_PARENT_TEXTURE) ? "a texture" : "a view")
<< tcu::TestLog::EndMessage;
/* Make sure the buffer is unmapped before throwing the exception */
gl.unmapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER);
TCU_FAIL("Invalid data sampled");
}
} /* for (all invocations) */
/* Unmap the buffer storage */
gl.unmapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUnmapBuffer() call failed.");
} /* if (verification_mean == VERIFICATION_MEAN_PROGRAM) */
else
{
DE_ASSERT(verification_mean == VERIFICATION_MEAN_GLGETTEXIMAGE);
/* Allocate space for the data */
unsigned char* data_ptr = new unsigned char[write_to_width * write_to_height * m_texture_n_components];
/* Retrieve the rendered data */
gl.getTexImage(GL_TEXTURE_2D, read_lod, GL_RGBA, GL_UNSIGNED_BYTE, data_ptr);
if (gl.getError() != GL_NO_ERROR)
{
/* Release the buffer before we throw an exception */
delete[] data_ptr;
TCU_FAIL("glGetTexImage() call failed.");
}
/* Verify the data is correct */
const int epsilon = 1;
bool is_data_correct = true;
for (unsigned int y = 0; y < write_to_height; ++y)
{
const unsigned char* row_ptr = data_ptr + y * m_texture_n_components * write_to_width;
for (unsigned int x = 0; x < write_to_width; ++x)
{
const unsigned char* texel_ptr = row_ptr + x * m_texture_n_components;
const float end_rgba[] = { 0.0f, 0.1f, 1.0f, 1.0f };
const float lerp_factor = float(x) / float(write_to_width);
const float start_rgba[] = { 1.0f, 0.9f, 0.0f, 0.0f };
const float expected_data_float[] = { start_rgba[0] * (1.0f - lerp_factor) + end_rgba[0] * lerp_factor,
start_rgba[1] * (1.0f - lerp_factor) + end_rgba[1] * lerp_factor,
start_rgba[2] * (1.0f - lerp_factor) + end_rgba[2] * lerp_factor,
start_rgba[3] * (1.0f - lerp_factor) +
end_rgba[3] * lerp_factor };
const unsigned char expected_data_ubyte[] = { (unsigned char)(expected_data_float[0] * 255.0f),
(unsigned char)(expected_data_float[1] * 255.0f),
(unsigned char)(expected_data_float[2] * 255.0f),
(unsigned char)(expected_data_float[3] * 255.0f) };
if (de::abs((int)texel_ptr[0] - (int)expected_data_ubyte[0]) > epsilon ||
de::abs((int)texel_ptr[1] - (int)expected_data_ubyte[1]) > epsilon ||
de::abs((int)texel_ptr[2] - (int)expected_data_ubyte[2]) > epsilon ||
de::abs((int)texel_ptr[3] - (int)expected_data_ubyte[3]) > epsilon)
{
is_data_correct = false;
break;
}
}
} /* for (all rows) */
/* Good to release the data buffer at this point */
delete[] data_ptr;
data_ptr = DE_NULL;
/* Fail the test if any of the rendered texels were found invalid */
if (!is_data_correct)
{
TCU_FAIL("Invalid data sampled");
}
}
}
/** Deinitializes all GL objects that may have been created during
* test execution.
**/
void TextureViewTestCoherency::deinit()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Release any GL objects the test may have created */
if (m_bo_id != 0)
{
gl.deleteBuffers(1, &m_bo_id);
m_bo_id = 0;
}
if (m_draw_fbo_id != 0)
{
gl.deleteFramebuffers(1, &m_draw_fbo_id);
m_draw_fbo_id = 0;
}
if (m_gradient_image_write_po_id != 0)
{
gl.deleteProgram(m_gradient_image_write_po_id);
m_gradient_image_write_po_id = 0;
}
if (m_gradient_image_write_vs_id != 0)
{
gl.deleteShader(m_gradient_image_write_vs_id);
m_gradient_image_write_vs_id = 0;
}
if (m_gradient_verification_po_id != 0)
{
gl.deleteProgram(m_gradient_verification_po_id);
m_gradient_verification_po_id = 0;
}
if (m_gradient_verification_vs_id != 0)
{
gl.deleteShader(m_gradient_verification_vs_id);
m_gradient_verification_vs_id = 0;
}
if (m_gradient_write_fs_id != 0)
{
gl.deleteShader(m_gradient_write_fs_id);
m_gradient_write_fs_id = 0;
}
if (m_gradient_write_po_id != 0)
{
gl.deleteProgram(m_gradient_write_po_id);
m_gradient_write_po_id = 0;
}
if (m_gradient_write_vs_id != 0)
{
gl.deleteShader(m_gradient_write_vs_id);
m_gradient_write_vs_id = 0;
}
if (m_read_fbo_id != 0)
{
gl.deleteFramebuffers(1, &m_read_fbo_id);
m_read_fbo_id = 0;
}
if (m_static_to_id != 0)
{
gl.deleteTextures(1, &m_static_to_id);
m_static_to_id = 0;
}
if (m_to_id != 0)
{
gl.deleteTextures(1, &m_to_id);
m_to_id = 0;
}
if (m_vao_id != 0)
{
gl.deleteVertexArrays(1, &m_vao_id);
m_vao_id = 0;
}
if (m_view_to_id != 0)
{
gl.deleteTextures(1, &m_view_to_id);
m_view_to_id = 0;
}
if (m_verification_po_id != 0)
{
gl.deleteProgram(m_verification_po_id);
m_verification_po_id = 0;
}
if (m_verification_vs_id != 0)
{
gl.deleteShader(m_verification_vs_id);
m_verification_vs_id = 0;
}
/* Disable GL_RASTERIZER_DISCARD mode */
gl.disable(GL_RASTERIZER_DISCARD);
}
/** Allocates a sufficiently large buffer for RGBA8 data and fills it with
* a horizontal gradient (as described in the test specification)
*
* It is user's responsibility to release the buffer when no longer needed.
*
* @return Pointer to the buffer.
**/
unsigned char* TextureViewTestCoherency::getHorizontalGradientData() const
{
const float end_rgba[] = { 1.0f, 0.9f, 0.0f, 0.0f };
unsigned char* result = new unsigned char[m_texture_width * m_texture_height * m_texture_n_components];
const float start_rgba[] = { 0.0f, 0.1f, 1.0f, 1.0f };
const unsigned int texel_size = m_texture_n_components;
for (unsigned int y = 0; y < m_texture_height; ++y)
{
unsigned char* row_data_ptr = result + texel_size * m_texture_width * y;
for (unsigned int x = 0; x < m_texture_width; ++x)
{
const float lerp_factor = float(x) / float(m_texture_width);
unsigned char* pixel_data_ptr = row_data_ptr + texel_size * x;
for (unsigned int n_component = 0; n_component < 4 /* rgba */; ++n_component)
{
pixel_data_ptr[n_component] = (unsigned char)((end_rgba[n_component] * lerp_factor +
start_rgba[n_component] * (1.0f - lerp_factor)) *
255.0f);
} /* for (all components) */
} /* for (all columns) */
} /* for (all rows) */
return result;
}
/** Retrieves properties of a sibling object that should be read from during
* some of the checks.
*
* @param texture_type Type of the texture object that should be used for reading.
* @param out_to_id Deref will be used to store texture object ID of the object.
* @param out_read_lod Deref will be used to store LOD to be used for reading from
* the object.
*
**/
void TextureViewTestCoherency::getReadPropertiesForTextureType(_texture_type texture_type, glw::GLuint* out_to_id,
unsigned int* out_read_lod) const
{
switch (texture_type)
{
case TEXTURE_TYPE_PARENT_TEXTURE:
{
*out_to_id = m_view_to_id;
/* We've modified LOD1 of parent texture which corresponds
* to LOD 0 from the view's PoV
*/
*out_read_lod = 0;
break;
}
case TEXTURE_TYPE_TEXTURE_VIEW:
{
*out_to_id = m_to_id;
/* We've modified LOD1 of the view texture which corresponds
* to LOD2 from parent texture's PoV.
*/
*out_read_lod = 2;
break;
}
default:
{
TCU_FAIL("Unrecognized read source");
}
} /* switch (texture_type) */
}
/** Allocates a sufficiently large buffer to hold RGBA8 data of user-specified resolution
* and fills it with a static color (as described in the test specification)
*
* It is caller's responsibility to release the returned buffer when it's no longer
* needed.
*
* @param width Width of the mip-map the buffer will be used as a data source for;
* @param height Height of the mip-map the buffer will be used as a data source for;
*
* @return Pointer to the buffer.
**/
unsigned char* TextureViewTestCoherency::getStaticColorTextureData(unsigned int width, unsigned int height) const
{
/* Prepare the data buffer storing the data we want to replace the region of the
* data source with.
*/
unsigned char* result_ptr = new unsigned char[width * height * m_texture_n_components];
for (unsigned int y = 0; y < height; ++y)
{
unsigned char* row_data_ptr = result_ptr + y * width * m_texture_n_components;
for (unsigned int x = 0; x < width; ++x)
{
unsigned char* pixel_data_ptr = row_data_ptr + x * m_texture_n_components;
memcpy(pixel_data_ptr, m_static_color_byte, sizeof(m_static_color_byte));
} /* for (all columns) */
} /* for (all rows) */
return result_ptr;
}
/** Retrieves properties of a parent texture object that should be written to during
* some of the checks.
*
* @param texture_type Type of the texture object that should be used for writing.
* @param out_to_id Deref will be used to store texture object ID of the object. Must not be NULL.
* @param out_width Deref will be used to store width of the mip-map the test will
* be writing to; Must not be NULL.
* @param out_height Deref will be used to store height of the mip-map the test will
* be writing to. Must not be NULL.
*
**/
void TextureViewTestCoherency::getWritePropertiesForTextureType(_texture_type texture_type, glw::GLuint* out_to_id,
unsigned int* out_width, unsigned int* out_height) const
{
DE_ASSERT(out_to_id != DE_NULL);
DE_ASSERT(out_width != DE_NULL);
DE_ASSERT(out_height != DE_NULL);
/* All tests will be attempting to modify layer 1 of either the texture
* or its sibling view. For views, the resolution is therefore going to
* be 16x16 (because the base resolution is 32x32, as the view uses a mipmap
* range of 1 to 2 inclusive); for parent texture, this will be 32x32 (as the base
* mip-map is 64x64)
*/
switch (texture_type)
{
case TEXTURE_TYPE_PARENT_TEXTURE:
{
*out_to_id = m_to_id;
*out_width = m_texture_width >> 1;
*out_height = m_texture_height >> 1;
break;
}
case TEXTURE_TYPE_TEXTURE_VIEW:
{
*out_to_id = m_view_to_id;
*out_width = m_texture_width >> 2;
*out_height = m_texture_height >> 2;
break;
}
default:
{
TCU_FAIL("Unrecognized texture type");
}
} /* switch (texture_type) */
}
/** Initializes buffer objects that will be used during the test.
*
* Throws exceptions if the initialization fails at any point.
**/
void TextureViewTestCoherency::initBufferObjects()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Generate and configure buffer object storage */
gl.genBuffers(1, &m_bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenBuffers() call failed.");
gl.bindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, m_bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer() call failed.");
gl.bindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0 /* index */, m_bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBufferBase() call failed.");
/* Case 1) needs the BO to hold just a single int.
* Case 3) needs one int per result texel.
*
* Allocate enough space to handle all the cases.
**/
glw::GLint bo_size = static_cast<glw::GLint>((m_texture_height >> 1) * (m_texture_width >> 1) * sizeof(int));
gl.bufferData(GL_TRANSFORM_FEEDBACK_BUFFER, bo_size, DE_NULL, /* data */
GL_STATIC_DRAW);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBufferdata() call failed.");
}
/** Initializes framebuffer objects that will be used during the test.
*
* Throws exceptions if the initialization fails at any point.
**/
void TextureViewTestCoherency::initFBO()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Generate framebuffer object(s) */
gl.genFramebuffers(1, &m_draw_fbo_id);
gl.genFramebuffers(1, &m_read_fbo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenFramebuffers() call failed.");
}
/** Initializes program objects that will be used during the test.
*
* This method will throw exceptions if either compilation or linking of
* any of the processed shaders/programs fails.
*
**/
void TextureViewTestCoherency::initPrograms()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* The test uses images in vertex shader stage. Make sure this is actually supported by
* the implementation */
m_are_images_supported = m_context.getContextInfo().isExtensionSupported("GL_ARB_shader_image_load_store");
if (m_are_images_supported)
{
glw::GLint gl_max_vertex_image_uniforms_value = 0;
gl.getIntegerv(GL_MAX_VERTEX_IMAGE_UNIFORMS, &gl_max_vertex_image_uniforms_value);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetIntegerv() call failed for GL_MAX_VERTEX_IMAGE_UNIFORM pname");
if (gl_max_vertex_image_uniforms_value < 1)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "Image support will not be tested by view_parent_texture_coherency, as"
"the implementation does not support image uniforms in vertex shader stage."
<< tcu::TestLog::EndMessage;
/* We cannot execute the test on this platform */
m_are_images_supported = false;
}
} /* if (m_are_images_supported) */
/* Create program objects */
if (m_are_images_supported)
{
m_gradient_image_write_po_id = gl.createProgram();
}
m_gradient_verification_po_id = gl.createProgram();
m_gradient_write_po_id = gl.createProgram();
m_verification_po_id = gl.createProgram();
GLU_EXPECT_NO_ERROR(gl.getError(), "glCreateProgram() call(s) failed.");
/* Create fragment shader objects */
m_gradient_write_fs_id = gl.createShader(GL_FRAGMENT_SHADER);
GLU_EXPECT_NO_ERROR(gl.getError(), "glCreateShader() call failed for GL_FRAGMENT_SHADER type");
/* Create vertex shader objects */
if (m_are_images_supported)
{
m_gradient_image_write_vs_id = gl.createShader(GL_VERTEX_SHADER);
}
m_gradient_verification_vs_id = gl.createShader(GL_VERTEX_SHADER);
m_gradient_write_vs_id = gl.createShader(GL_VERTEX_SHADER);
m_verification_vs_id = gl.createShader(GL_VERTEX_SHADER);
GLU_EXPECT_NO_ERROR(gl.getError(), "glCreateShader() call(s) failed for GL_VERTEX_SHADER type.");
/* Set gradient verification program's fragment shader body */
const char* gradient_verification_vs_body =
"#version 400\n"
"\n"
"out int result;\n"
"\n"
"uniform float lod;\n"
"uniform bool sample_exact_uv;\n"
"uniform sampler2D texture;\n"
"\n"
"void main()\n"
"{\n"
" const float epsilon = 1.0 / 255.0;\n"
" const vec4 end_rgba = vec4(0.0, 0.1, 1.0, 1.0);\n"
" const vec4 start_rgba = vec4(1.0, 0.9, 0.0, 0.0);\n"
"\n"
" ivec2 texture_size = textureSize(texture, int(lod) );\n"
" vec2 uv = vec2( float(gl_VertexID % texture_size.x) / float(texture_size.x),\n"
" 1.0 - float(gl_VertexID / texture_size.x) / float(texture_size.y) );\n"
" vec4 expected_color;\n"
" vec4 texture_color = textureLod(texture, uv, lod);\n"
"\n"
" if (sample_exact_uv)\n"
" {\n"
" expected_color = mix(start_rgba, end_rgba, uv.x);\n"
" }\n"
" else\n"
" {\n"
" expected_color = mix(start_rgba, end_rgba, uv.x + 0.5/float(texture_size.x) );\n"
" }\n"
"\n"
"\n"
" if (abs(texture_color.x - expected_color.x) > epsilon ||\n"
" abs(texture_color.y - expected_color.y) > epsilon ||\n"
" abs(texture_color.z - expected_color.z) > epsilon ||\n"
" abs(texture_color.w - expected_color.w) > epsilon)\n"
" {\n"
" result = int( texture_color.y * 255.0);\n"
" }\n"
" else\n"
" {\n"
" result = 1;\n"
" }\n"
"}\n";
gl.shaderSource(m_gradient_verification_vs_id, 1 /* count */, &gradient_verification_vs_body, NULL /* length */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glShaderSource() call failed.");
/* Set gradient write (for images) program's vertex shader body */
if (m_are_images_supported)
{
const char* gradient_write_image_vs_body =
"#version 400\n"
"\n"
"#extension GL_ARB_shader_image_load_store : require\n"
"\n"
"layout(rgba8) uniform image2D image;\n"
" uniform ivec2 image_size;\n"
"\n"
"void main()\n"
"{\n"
" const vec4 end_rgba = vec4(0.0, 0.1, 1.0, 1.0);\n"
" const vec4 start_rgba = vec4(1.0, 0.9, 0.0, 0.0);\n"
" ivec2 xy = ivec2(gl_VertexID % image_size.x, gl_VertexID / image_size.x);\n"
" vec2 uv = vec2(float(xy.x) / float(image_size.x), 1.0 - float(xy.y) / "
"float(image_size.y) );\n"
" vec4 result = mix (start_rgba, end_rgba, uv.x);\n"
"\n"
" imageStore(image, xy, result);\n"
"}\n";
gl.shaderSource(m_gradient_image_write_vs_id, 1 /* count */, &gradient_write_image_vs_body, NULL /* length */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glShaderSource() call failed.");
}
/* Set gradient write program's fragment shader body */
const char* gradient_write_fs_body = "#version 400\n"
"\n"
"in vec2 uv;\n"
"\n"
"layout(location = 0) out vec4 result;\n"
"\n"
"void main()\n"
"{\n"
" const vec4 end_rgba = vec4(0.0, 0.1, 1.0, 1.0);\n"
" const vec4 start_rgba = vec4(1.0, 0.9, 0.0, 0.0);\n"
"\n"
" result = mix(start_rgba, end_rgba, uv.x);\n"
"}\n";
gl.shaderSource(m_gradient_write_fs_id, 1 /* count */, &gradient_write_fs_body, NULL /* length */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glShaderSource() call failed.");
/* Set gradient write program's vertex shader body */
const char* gradient_write_vs_body =
"#version 400\n"
"\n"
"out vec2 uv;\n"
"\n"
"void main()\n"
"{\n"
" switch (gl_VertexID)\n"
" {\n"
" case 0: gl_Position = vec4(-1.0, -1.0, 0.0, 1.0); uv = vec2(0.0, 1.0); break;\n"
" case 1: gl_Position = vec4(-1.0, 1.0, 0.0, 1.0); uv = vec2(0.0, 0.0); break;\n"
" case 2: gl_Position = vec4( 1.0, -1.0, 0.0, 1.0); uv = vec2(1.0, 1.0); break;\n"
" case 3: gl_Position = vec4( 1.0, 1.0, 0.0, 1.0); uv = vec2(1.0, 0.0); break;\n"
" }\n"
"}\n";
gl.shaderSource(m_gradient_write_vs_id, 1 /* count */, &gradient_write_vs_body, NULL /* length */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glShaderSource() call failed.");
/* Set verification program's vertex shader body */
const char* verification_vs_body = "#version 400\n"
"\n"
"uniform vec4 expected_color;\n"
"uniform int lod;\n"
"uniform sampler2D sampler;\n"
"\n"
"out int result;\n"
"\n"
"void main()\n"
"{\n"
" const float epsilon = 1.0 / 256.0;\n"
"\n"
" vec4 sampled_data = textureLod(sampler, vec2(0.5, 0.5), lod);\n"
"\n"
" if (abs(sampled_data.x - expected_color.x) > epsilon ||\n"
" abs(sampled_data.y - expected_color.y) > epsilon ||\n"
" abs(sampled_data.z - expected_color.z) > epsilon ||\n"
" abs(sampled_data.w - expected_color.w) > epsilon)\n"
" {\n"
" result = 0;\n"
" }\n"
" else\n"
" {\n"
" result = 1;\n"
" }\n"
"}\n";
gl.shaderSource(m_verification_vs_id, 1 /* count */, &verification_vs_body, NULL /* length */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glShaderSource() call failed.");
/* Compile the shaders */
const glw::GLuint so_ids[] = { m_gradient_image_write_vs_id, m_gradient_verification_vs_id, m_gradient_write_fs_id,
m_gradient_write_vs_id, m_verification_vs_id };
const unsigned int n_so_ids = sizeof(so_ids) / sizeof(so_ids[0]);
for (unsigned int n_so_id = 0; n_so_id < n_so_ids; ++n_so_id)
{
glw::GLuint so_id = so_ids[n_so_id];
if (so_id != 0)
{
gl.compileShader(so_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glCompileShader() call failed.");
/* Verify the compilation ended successfully */
glw::GLint compile_status = GL_FALSE;
gl.getShaderiv(so_id, GL_COMPILE_STATUS, &compile_status);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetShaderiv() call failed.");
if (compile_status != GL_TRUE)
{
TCU_FAIL("Shader compilation failed.");
}
}
} /* for (all shader objects) */
/* Attach the shaders to relevant programs */
if (m_are_images_supported)
{
gl.attachShader(m_gradient_image_write_po_id, m_gradient_image_write_vs_id);
}
gl.attachShader(m_gradient_verification_po_id, m_gradient_verification_vs_id);
gl.attachShader(m_gradient_write_po_id, m_gradient_write_fs_id);
gl.attachShader(m_gradient_write_po_id, m_gradient_write_vs_id);
gl.attachShader(m_verification_po_id, m_verification_vs_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glAttachShader() call(s) failed.");
/* Set up XFB */
const char* verification_varying_name = "result";
const glw::GLuint xfb_po_ids[] = {
m_gradient_verification_po_id, m_verification_po_id,
};
const unsigned int n_xfb_po_ids = sizeof(xfb_po_ids) / sizeof(xfb_po_ids[0]);
for (unsigned int n_xfb_po_id = 0; n_xfb_po_id < n_xfb_po_ids; ++n_xfb_po_id)
{
glw::GLint po_id = xfb_po_ids[n_xfb_po_id];
gl.transformFeedbackVaryings(po_id, 1 /* count */, &verification_varying_name, GL_INTERLEAVED_ATTRIBS);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTransformFeedbackVaryings() call failed.");
}
/* Link the programs */
const glw::GLuint po_ids[] = { m_gradient_image_write_po_id, m_gradient_verification_po_id, m_gradient_write_po_id,
m_verification_po_id };
const unsigned int n_po_ids = sizeof(po_ids) / sizeof(po_ids[0]);
for (unsigned int n_po_id = 0; n_po_id < n_po_ids; ++n_po_id)
{
glw::GLuint po_id = po_ids[n_po_id];
if (po_id != 0)
{
gl.linkProgram(po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glLinkProgram() call failed.");
/* Make sure the linking was successful. */
glw::GLint link_status = GL_FALSE;
gl.getProgramiv(po_id, GL_LINK_STATUS, &link_status);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetProgramiv() call failed.");
if (link_status != GL_TRUE)
{
TCU_FAIL("Program linking failed.");
}
}
} /* for (all program objects) */
/* Retrieve uniform locations for gradient write program (image case) */
if (m_are_images_supported)
{
m_gradient_image_write_image_size_location = gl.getUniformLocation(m_gradient_image_write_po_id, "image_size");
if (m_gradient_image_write_image_size_location == -1)
{
TCU_FAIL("image_size is considered an inactive uniform which is invalid.");
}
}
/* Retrieve uniform locations for gradient verification program */
m_gradient_verification_po_sample_exact_uv_location =
gl.getUniformLocation(m_gradient_verification_po_id, "sample_exact_uv");
m_gradient_verification_po_lod_location = gl.getUniformLocation(m_gradient_verification_po_id, "lod");
m_gradient_verification_po_texture_location = gl.getUniformLocation(m_gradient_verification_po_id, "texture");
if (m_gradient_verification_po_sample_exact_uv_location == -1)
{
TCU_FAIL("sample_exact_uv is considered an inactive uniform which is invalid");
}
if (m_gradient_verification_po_lod_location == -1)
{
TCU_FAIL("lod is considered an inactive uniform which is invalid.");
}
if (m_gradient_verification_po_texture_location == -1)
{
TCU_FAIL("texture is considered an inactive uniform which is invalid.");
}
/* Retrieve uniform locations for verification program */
m_verification_po_expected_color_location = gl.getUniformLocation(m_verification_po_id, "expected_color");
m_verification_po_lod_location = gl.getUniformLocation(m_verification_po_id, "lod");
if (m_verification_po_expected_color_location == -1)
{
TCU_FAIL("expected_color is considered an inactive uniform which is invalid.");
}
if (m_verification_po_lod_location == -1)
{
TCU_FAIL("lod is considered an inactive uniform which is invalid.");
}
}
/** Initializes texture objects required to run the test.
*
* Throws exceptions if the initialization fails at any point.
**/
void TextureViewTestCoherency::initTextures()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Generate the texture objects */
gl.genTextures(1, &m_static_to_id);
gl.genTextures(1, &m_to_id);
gl.genTextures(1, &m_view_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call(s) failed.");
/* Set up parent texture object */
gl.bindTexture(GL_TEXTURE_2D, m_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
gl.texStorage2D(GL_TEXTURE_2D, m_texture_n_levels, GL_RGBA8, m_texture_width, m_texture_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed.");
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexParameteri() call(s) failed.");
/* Set up the texture views we'll be using for the test */
gl.textureView(m_view_to_id, GL_TEXTURE_2D, m_to_id, GL_RGBA8, 1, /* minlevel */
2, /* numlevels */
0, /* minlayer */
1); /* numlayers */
GLU_EXPECT_NO_ERROR(gl.getError(), "glTextureView() call failed");
gl.bindTexture(GL_TEXTURE_2D, m_view_to_id);
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
/* Set up storage for static color texture */
gl.bindTexture(GL_TEXTURE_2D, m_static_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
gl.texStorage2D(GL_TEXTURE_2D, 1, /* levels */
GL_RGBA8, m_static_texture_width, m_static_texture_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed.");
/* Fill the texture objects with actual contents */
initTextureContents();
}
/** Fills all relevant mip-maps of all previously initialized texture objects with
* contents.
*
* Throws an exception if any of the issued GL API calls fail.
**/
void TextureViewTestCoherency::initTextureContents()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Make sure parent texture object is bound before we start modifying
* the mip-maps */
gl.bindTexture(GL_TEXTURE_2D, m_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
/* Set up parent texture mip-maps */
unsigned char* base_mipmap_data_ptr = getHorizontalGradientData();
gl.texSubImage2D(GL_TEXTURE_2D, 0, /* level */
0, /* xoffset */
0, /* yoffset */
m_texture_width, m_texture_height, GL_RGBA, GL_UNSIGNED_BYTE, base_mipmap_data_ptr);
delete[] base_mipmap_data_ptr;
base_mipmap_data_ptr = NULL;
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexSubImage2D() call failed.");
/* Generate all mip-maps */
gl.generateMipmap(GL_TEXTURE_2D);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenerateMipmap() call failed.");
/* Set up static color texture contents. We only need to fill the base mip-map
* since the texture's resolution is 1x1.
*/
DE_ASSERT(m_static_texture_height == 1 && m_static_texture_width == 1);
unsigned char* static_texture_data_ptr = getStaticColorTextureData(m_static_texture_width, m_static_texture_height);
gl.bindTexture(GL_TEXTURE_2D, m_static_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
gl.texSubImage2D(GL_TEXTURE_2D, 0, /* level */
0, /* xoffset */
0, /* yoffset */
m_static_texture_width, m_static_texture_height, GL_RGBA, GL_UNSIGNED_BYTE,
static_texture_data_ptr);
/* Good to release the buffer at this point */
delete[] static_texture_data_ptr;
static_texture_data_ptr = DE_NULL;
/* Was the API call successful? */
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexSubImage2D() call failed.");
}
/** Initializes a vertex array object used for the draw calls issued during the test. */
void TextureViewTestCoherency::initVAO()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Generate and bind a vertex array object */
gl.genVertexArrays(1, &m_vao_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenVertexArrays() call failed.");
gl.bindVertexArray(m_vao_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindVertexArray() call failed.");
}
/** Executes test iteration.
*
* @return Returns STOP when test has finished executing, CONTINUE if more iterations are needed.
*/
tcu::TestNode::IterateResult TextureViewTestCoherency::iterate()
{
/* Do not execute the test if GL_ARB_texture_view is not supported */
if (!m_context.getContextInfo().isExtensionSupported("GL_ARB_texture_view"))
{
throw tcu::NotSupportedError("GL_ARB_texture_view is not supported.");
}
/* Initialize all GL objects required to run the test */
initBufferObjects();
initPrograms();
initTextures();
initFBO();
initVAO();
/* Iterate over the set of texture types we are to test */
const _texture_type texture_types[] = { TEXTURE_TYPE_PARENT_TEXTURE, TEXTURE_TYPE_TEXTURE_VIEW };
const unsigned int n_texture_types = sizeof(texture_types) / sizeof(texture_types[0]);
for (unsigned int n_texture_type = 0; n_texture_type < n_texture_types; ++n_texture_type)
{
_texture_type texture_type = texture_types[n_texture_type];
/* Verify parent texture/view coherency when using glTexSubImage2D() */
checkAPICallCoherency(texture_type, true);
/* Verify parent texture/view coherency when using glBlitFramebuffer() */
checkAPICallCoherency(texture_type, false);
/* Verify parent texture/view coherency when modifying contents of one
* of the objects in a program, and then reading the sibling from another
* program.
*/
checkProgramWriteCoherency(texture_type, false, /* should_use_images */
BARRIER_TYPE_NONE, VERIFICATION_MEAN_PROGRAM);
if (m_are_images_supported)
{
/* Verify a view bound to an image unit and written to using image uniforms
* in vertex shader stage can later be sampled correctly, assuming
* a GL_TEXTURE_FETCH_BARRIER_BIT barrier is inserted between the write
* operations and sampling from another program object.
*/
checkProgramWriteCoherency(texture_type, true, /* should_use_images */
BARRIER_TYPE_TEXTURE_FETCH_BARRIER_BIT, VERIFICATION_MEAN_PROGRAM);
/* Verify a view bound to an image unit and written to using image uniforms
* in vertex shader stage can later be correctly retrieved using a glGetTexImage()
* call, assuming a GL_TEXTURE_UPDATE_BARRIER_BIT barrier is inserted between the
* two operations.
**/
checkProgramWriteCoherency(texture_type, true, /* should_use_images */
BARRIER_TYPE_TEXTURE_UPDATE_BUFFER_BIT, VERIFICATION_MEAN_GLGETTEXIMAGE);
}
/* Reinitialize all texture contents */
initTextureContents();
} /* for (all read sources) */
/* Test case passed */
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
/** Constructor.
*
* @param context Rendering context.
*
**/
TextureViewTestBaseAndMaxLevels::TextureViewTestBaseAndMaxLevels(deqp::Context& context)
: TestCase(context, "base_and_max_levels", "test_description")
, m_texture_height(256)
, m_texture_n_components(4)
, m_texture_n_levels(6)
, m_texture_width(256)
, m_view_height(128)
, m_view_width(128)
, m_layer_data_lod0(DE_NULL)
, m_layer_data_lod1(DE_NULL)
, m_fbo_id(0)
, m_fs_id(0)
, m_po_id(0)
, m_po_lod_index_uniform_location(-1)
, m_po_to_sampler_uniform_location(-1)
, m_result_to_id(0)
, m_to_id(0)
, m_vao_id(0)
, m_view_to_id(0)
, m_vs_id(0)
{
/* Left blank on purpose */
}
/* Deinitializes all GL objects that may have been created during test execution. */
void TextureViewTestBaseAndMaxLevels::deinit()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
if (m_fbo_id != 0)
{
gl.deleteFramebuffers(1, &m_fbo_id);
m_fbo_id = 0;
}
if (m_fs_id != 0)
{
gl.deleteShader(m_fs_id);
m_fs_id = 0;
}
if (m_layer_data_lod0 != DE_NULL)
{
delete[] m_layer_data_lod0;
m_layer_data_lod0 = DE_NULL;
}
if (m_layer_data_lod1 != DE_NULL)
{
delete[] m_layer_data_lod1;
m_layer_data_lod1 = DE_NULL;
}
if (m_po_id != 0)
{
gl.deleteProgram(m_po_id);
m_po_id = 0;
}
if (m_result_to_id != 0)
{
gl.deleteTextures(1, &m_result_to_id);
m_result_to_id = 0;
}
if (m_to_id != 0)
{
gl.deleteTextures(1, &m_to_id);
m_to_id = 0;
}
if (m_vao_id != 0)
{
gl.deleteVertexArrays(1, &m_vao_id);
m_vao_id = 0;
}
if (m_view_to_id != 0)
{
gl.deleteTextures(1, &m_view_to_id);
m_view_to_id = 0;
}
if (m_vs_id != 0)
{
gl.deleteShader(m_vs_id);
m_vs_id = 0;
}
}
/* Initializes and configures a program object used later by the test. */
void TextureViewTestBaseAndMaxLevels::initProgram()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Generate shader object IDs */
m_fs_id = gl.createShader(GL_FRAGMENT_SHADER);
m_vs_id = gl.createShader(GL_VERTEX_SHADER);
GLU_EXPECT_NO_ERROR(gl.getError(), "glCreateShader() call(s) failed");
/* Generate program object ID */
m_po_id = gl.createProgram();
GLU_EXPECT_NO_ERROR(gl.getError(), "glCreateProgram() call failed");
/* Set up vertex shader body */
static const char* vs_body =
"#version 400\n"
"\n"
"out vec2 uv;\n"
"\n"
"void main()\n"
"{\n"
" switch (gl_VertexID)\n"
" {\n"
" case 0: gl_Position = vec4(-1.0, 1.0, 0.0, 1.0); uv = vec2(0.0, 1.0); break;\n"
" case 1: gl_Position = vec4(-1.0, -1.0, 0.0, 1.0); uv = vec2(0.0, 0.0); break;\n"
" case 2: gl_Position = vec4( 1.0, 1.0, 0.0, 1.0); uv = vec2(1.0, 1.0); break;\n"
" case 3: gl_Position = vec4( 1.0, -1.0, 0.0, 1.0); uv = vec2(1.0, 0.0); break;\n"
" };\n"
"}\n";
gl.shaderSource(m_vs_id, 1 /* count */, &vs_body, DE_NULL /* length */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glShaderSource() call failed for vertex shader case");
/* Set up fragment shader body */
static const char* fs_body = "#version 400\n"
"\n"
"in vec2 uv;\n"
"\n"
"uniform int lod_index;\n"
"uniform sampler2D to_sampler;\n"
"\n"
"out vec4 result;\n"
"\n"
"void main()\n"
"{\n"
" result = textureLod(to_sampler, uv, float(lod_index) );\n"
"}\n";
gl.shaderSource(m_fs_id, 1 /* count */, &fs_body, DE_NULL /* length */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glShaderSource() call failed for fragment shader case");
/* Compile both shaders */
const glw::GLuint so_ids[] = { m_fs_id, m_vs_id };
const unsigned int n_so_ids = sizeof(so_ids) / sizeof(so_ids[0]);
for (unsigned int n_so_id = 0; n_so_id < n_so_ids; ++n_so_id)
{
glw::GLint so_id = so_ids[n_so_id];
gl.compileShader(so_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glCompileShader() call failed.");
/* Make sure the compilation has succeeded */
glw::GLint compile_status = GL_FALSE;
gl.getShaderiv(so_id, GL_COMPILE_STATUS, &compile_status);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetShaderiv() call failed.");
if (compile_status != GL_TRUE)
{
m_testCtx.getLog() << tcu::TestLog::Message << "Shader compilation failed" << tcu::TestLog::EndMessage;
}
} /* for (all shader objects) */
/* Attach the shaders to the program object */
gl.attachShader(m_po_id, m_fs_id);
gl.attachShader(m_po_id, m_vs_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glAttachShader() call(s) failed");
/* Link the program object */
gl.linkProgram(m_po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glLinkProgram() call faikled");
/* Verify the linking has succeeded */
glw::GLint link_status = GL_FALSE;
gl.getProgramiv(m_po_id, GL_LINK_STATUS, &link_status);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetProgramiv() failed for GL_LINK_STATUS pname");
if (link_status != GL_TRUE)
{
TCU_FAIL("Program linking failed");
}
/* Retrieve uniform locations */
m_po_lod_index_uniform_location = gl.getUniformLocation(m_po_id, "lod_index");
m_po_to_sampler_uniform_location = gl.getUniformLocation(m_po_id, "to_sampler");
if (m_po_lod_index_uniform_location == -1)
{
TCU_FAIL("lod_index is considered an inactive uniform");
}
if (m_po_to_sampler_uniform_location == -1)
{
TCU_FAIL("to_sampler is considered an inactive uniform");
}
}
/* Initializes all GL objects used by the test. */
void TextureViewTestBaseAndMaxLevels::initTest()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Initialize textures */
initTextures();
/* Initialize framebuffer and configure its attachments */
gl.genFramebuffers(1, &m_fbo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenFramebuffers() call failed");
/* Build the program we'll need for the test */
initProgram();
/* Generate a vertex array object to execute the draw calls */
gl.genVertexArrays(1, &m_vao_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenVertexArrays() call failed.");
gl.bindVertexArray(m_vao_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindVertexArray() call failed.");
/* Finally, allocate space for buffers that will be filled with rendered data */
m_layer_data_lod0 = new unsigned char[m_texture_width * m_texture_height * m_texture_n_components];
m_layer_data_lod1 = new unsigned char[(m_texture_width >> 1) * (m_texture_height >> 1) * m_texture_n_components];
if (m_layer_data_lod0 == DE_NULL || m_layer_data_lod1 == DE_NULL)
{
TCU_FAIL("Out of memory");
}
}
/** Initializes texture objects used by the test. */
void TextureViewTestBaseAndMaxLevels::initTextures()
{
/* Generate IDs first */
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
gl.genTextures(1, &m_result_to_id);
gl.genTextures(1, &m_to_id);
gl.genTextures(1, &m_view_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call(s) failed");
/* Set up parent texture object's storage */
gl.bindTexture(GL_TEXTURE_2D, m_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
gl.texStorage2D(GL_TEXTURE_2D, m_texture_n_levels, GL_RGBA8, m_texture_width, m_texture_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed");
/* Configure GL_TEXTURE_BASE_LEVEL parameter of the texture object as per test spec */
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 2);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexParameteri() call failed for GL_TEXTURE_BASE_LEVEL pname");
/* Configure GL_TEXTURE_MAX_LEVEL parameter of the texture object as per test spec */
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 4);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexParameteri() call failed for GL_TEXTURE_MAX_LEVEL pname");
/* Set up mip-maps */
for (unsigned int n_mipmap = 0; n_mipmap < m_texture_n_levels; ++n_mipmap)
{
const float start_rgba[] = { /* As per test specification */
float(n_mipmap + 0) / 10.0f, float(n_mipmap + 1) / 10.0f,
float(n_mipmap + 2) / 10.0f, float(n_mipmap + 3) / 10.0f
};
const float end_rgba[] = { float(10 - (n_mipmap + 0)) / 10.0f, float(10 - (n_mipmap + 1)) / 10.0f,
float(10 - (n_mipmap + 2)) / 10.0f, float(10 - (n_mipmap + 3)) / 10.0f };
/* Allocate space for the layer data */
const unsigned int mipmap_height = m_texture_height >> n_mipmap;
const unsigned int mipmap_width = m_texture_width >> n_mipmap;
unsigned char* data = new unsigned char[mipmap_width * mipmap_height * m_texture_n_components];
if (data == NULL)
{
TCU_FAIL("Out of memory");
}
/* Fill the buffer with layer data */
const unsigned int pixel_size = 4 /* components */;
for (unsigned int y = 0; y < mipmap_height; ++y)
{
unsigned char* row_data_ptr = data + mipmap_width * y * pixel_size;
for (unsigned int x = 0; x < mipmap_width; ++x)
{
const float lerp_factor = float(x) / float(mipmap_width);
unsigned char* pixel_data_ptr = row_data_ptr + x * pixel_size;
for (unsigned int n_component = 0; n_component < m_texture_n_components; n_component++)
{
pixel_data_ptr[n_component] = (unsigned char)((start_rgba[n_component] * lerp_factor +
end_rgba[n_component] * (1.0f - lerp_factor)) *
255.0f);
}
} /* for (all columns) */
} /* for (all rows) */
/* Upload the layer data */
gl.texSubImage2D(GL_TEXTURE_2D, n_mipmap, 0, /* xoffset */
0, /* yoffset */
mipmap_width, mipmap_height, GL_RGBA, GL_UNSIGNED_BYTE, data);
/* Release the data buffer */
delete[] data;
data = DE_NULL;
/* Make sure the API call finished successfully */
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexSubImage2D() call failed");
} /* for (all mip-maps) */
/* Configure the texture view storage as per spec. */
gl.textureView(m_view_to_id, GL_TEXTURE_2D, m_to_id, GL_RGBA8, 0, /* minlevel */
5, /* numlevels */
0, /* minlayer */
1); /* numlayers */
GLU_EXPECT_NO_ERROR(gl.getError(), "glTextureView() call failed");
/* Configure the texture view's GL_TEXTURE_BASE_LEVEL parameter */
gl.bindTexture(GL_TEXTURE_2D, m_view_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 1);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexParameteri() call failed for GL_TEXTURE_BASE_LEVEL pname");
/* Configure the texture view's GL_TEXTURE_MAX_LEVEL parameter */
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 2);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexParameteri() call failed for GL_TEXTURE_MAX_LEVEL pname");
/* Set up result texture storage */
gl.bindTexture(GL_TEXTURE_2D, m_result_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
gl.texStorage2D(GL_TEXTURE_2D, 1, /* We will only attach the first level of the result texture to the FBO */
GL_RGBA8, m_view_width, m_view_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed");
}
/** Executes test iteration.
*
* @return Returns STOP when test has finished executing, CONTINUE if more iterations are needed.
*/
tcu::TestNode::IterateResult TextureViewTestBaseAndMaxLevels::iterate()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Only execute if GL_ARB_texture_view extension is supported */
const std::vector<std::string>& extensions = m_context.getContextInfo().getExtensions();
if (std::find(extensions.begin(), extensions.end(), "GL_ARB_texture_view") == extensions.end())
{
throw tcu::NotSupportedError("GL_ARB_texture_view is not supported");
}
/* Initialize all GL objects necessary to run the test */
initTest();
/* Activate test-wide program object */
gl.useProgram(m_po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram() call failed.");
/* Bind the data texture */
gl.activeTexture(GL_TEXTURE0);
GLU_EXPECT_NO_ERROR(gl.getError(), "glActiveTexture() call failed");
gl.bindTexture(GL_TEXTURE_2D, m_view_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
/* We will now use the program to sample the view's LOD 0 and LOD 1 and store
* it in two separate textures.
**/
for (unsigned int lod_level = 0; lod_level < 2; /* as per test spec */
++lod_level)
{
/* Set up FBO attachments */
gl.bindFramebuffer(GL_FRAMEBUFFER, m_fbo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindFramebuffer() call failed");
gl.framebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_result_to_id,
0); /* level */
GLU_EXPECT_NO_ERROR(gl.getError(), "glFramebufferTexture2D() call failed");
/* Update viewport configuration */
gl.viewport(0, /* x */
0, /* y */
m_view_width >> lod_level, m_view_height >> lod_level);
GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport() call failed");
/* Configure program object uniforms before we continue */
gl.uniform1i(m_po_lod_index_uniform_location, lod_level);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i() call failed.");
/* Render a triangle strip. The program we're using will output a full-screen
* quad with the sampled data */
gl.drawArrays(GL_TRIANGLE_STRIP, 0 /* first */, 4 /* count */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDrawArrays() call failed.");
/* At the time of the draw call, we've modified the draw/read framebuffer binding
* so that everything we render ends up in result texture. It's time to read it */
glw::GLvoid* result_data_ptr = (lod_level == 0) ? m_layer_data_lod0 : m_layer_data_lod1;
gl.readPixels(0, /* x */
0, /* y */
m_view_width >> lod_level, m_view_height >> lod_level, GL_RGBA, GL_UNSIGNED_BYTE,
result_data_ptr);
GLU_EXPECT_NO_ERROR(gl.getError(), "glReadPixels() call failed");
} /* for (both LODs) */
/* Now that we have both pieces of data, we can proceed with actual verification */
for (unsigned int lod_level = 0; lod_level < 2; ++lod_level)
{
/* NOTE: This code is a modification of initialization routine
* found in initTextures()
*/
const unsigned char epsilon = 1;
const glw::GLvoid* layer_data_ptr = (lod_level == 0) ? m_layer_data_lod0 : m_layer_data_lod1;
const unsigned int layer_height = m_view_height >> lod_level;
const unsigned int layer_width = m_view_width >> lod_level;
const unsigned int pixel_size = 4 /* components */;
const unsigned int view_minimum_level = 1; /* THS SHOULD BE 1 */
const float start_rgba[] = {
/* As per test specification */
float(lod_level + view_minimum_level + 0) / 10.0f, float(lod_level + view_minimum_level + 1) / 10.0f,
float(lod_level + view_minimum_level + 2) / 10.0f, float(lod_level + view_minimum_level + 3) / 10.0f
};
const float end_rgba[] = { float(10 - (lod_level + view_minimum_level + 0)) / 10.0f,
float(10 - (lod_level + view_minimum_level + 1)) / 10.0f,
float(10 - (lod_level + view_minimum_level + 2)) / 10.0f,
float(10 - (lod_level + view_minimum_level + 3)) / 10.0f };
for (unsigned int y = 0; y < layer_height; ++y)
{
const unsigned char* row_data_ptr = (const unsigned char*)layer_data_ptr + layer_width * y * pixel_size;
for (unsigned int x = 0; x < layer_width; ++x)
{
const float lerp_factor = float(x) / float(layer_width);
const unsigned char* pixel_data_ptr = row_data_ptr + x * pixel_size;
const unsigned char expected_data[] = {
(unsigned char)((start_rgba[0] * lerp_factor + end_rgba[0] * (1.0f - lerp_factor)) * 255.0f),
(unsigned char)((start_rgba[1] * lerp_factor + end_rgba[1] * (1.0f - lerp_factor)) * 255.0f),
(unsigned char)((start_rgba[2] * lerp_factor + end_rgba[2] * (1.0f - lerp_factor)) * 255.0f),
(unsigned char)((start_rgba[3] * lerp_factor + end_rgba[3] * (1.0f - lerp_factor)) * 255.0f)
};
if (de::abs(expected_data[0] - pixel_data_ptr[0]) > epsilon ||
de::abs(expected_data[1] - pixel_data_ptr[1]) > epsilon ||
de::abs(expected_data[2] - pixel_data_ptr[2]) > epsilon ||
de::abs(expected_data[3] - pixel_data_ptr[3]) > epsilon)
{
m_testCtx.getLog() << tcu::TestLog::Message << "Found an invalid texel at (" << x << ", " << y
<< ");"
" expected value:"
"("
<< expected_data[0] << ", " << expected_data[1] << ", " << expected_data[2]
<< ", " << expected_data[3] << ")"
", found:"
"("
<< pixel_data_ptr[0] << ", " << pixel_data_ptr[1] << ", " << pixel_data_ptr[2]
<< ", " << pixel_data_ptr[3] << ")" << tcu::TestLog::EndMessage;
TCU_FAIL("Rendered data does not match expected pixel data");
} /* if (pixel mismatch found) */
} /* for (all columns) */
} /* for (all rows) */
} /* for (both LODs) */
/* Test case passed */
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
/** Constructor.
*
* @param context Rendering context.
**/
TextureViewTestReferenceCounting::TextureViewTestReferenceCounting(deqp::Context& context)
: TestCase(context, "reference_counting",
"Makes sure that sampling from views, for which the parent texture object "
"has already been deleted, works correctly.")
, m_bo_id(0)
, m_parent_to_id(0)
, m_po_id(0)
, m_po_expected_texel_uniform_location(-1)
, m_po_lod_uniform_location(-1)
, m_vao_id(0)
, m_view_to_id(0)
, m_view_view_to_id(0)
, m_vs_id(0)
, m_texture_height(64)
, m_texture_n_levels(7)
, m_texture_width(64)
{
/* Configure a vector storing unique colors that should be used
* for filling subsequent mip-maps of parent texture */
m_mipmap_colors.push_back(_norm_vec4(123, 34, 56, 78));
m_mipmap_colors.push_back(_norm_vec4(234, 45, 67, 89));
m_mipmap_colors.push_back(_norm_vec4(34, 56, 78, 90));
m_mipmap_colors.push_back(_norm_vec4(45, 67, 89, 1));
m_mipmap_colors.push_back(_norm_vec4(56, 78, 90, 123));
m_mipmap_colors.push_back(_norm_vec4(67, 89, 1, 234));
m_mipmap_colors.push_back(_norm_vec4(78, 90, 12, 34));
DE_ASSERT(m_mipmap_colors.size() == m_texture_n_levels);
}
/** Deinitializes all GL objects that may have been created during test
* execution.
**/
void TextureViewTestReferenceCounting::deinit()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
if (m_bo_id != 0)
{
gl.deleteBuffers(1, &m_bo_id);
m_bo_id = 0;
}
if (m_parent_to_id != 0)
{
gl.deleteTextures(1, &m_parent_to_id);
m_parent_to_id = 0;
}
if (m_po_id != 0)
{
gl.deleteProgram(m_po_id);
m_po_id = 0;
}
if (m_vao_id != 0)
{
gl.deleteVertexArrays(1, &m_vao_id);
m_vao_id = 0;
}
if (m_view_to_id != 0)
{
gl.deleteTextures(1, &m_view_to_id);
m_view_to_id = 0;
}
if (m_view_view_to_id != 0)
{
gl.deleteTextures(1, &m_view_view_to_id);
m_view_view_to_id = 0;
}
if (m_vs_id != 0)
{
gl.deleteShader(m_vs_id);
m_vs_id = 0;
}
}
/* Initializes a program object to be used during the test. */
void TextureViewTestReferenceCounting::initProgram()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Create program & shader object IDs */
m_po_id = gl.createProgram();
GLU_EXPECT_NO_ERROR(gl.getError(), "glCreateProgram() call failed");
m_vs_id = gl.createShader(GL_VERTEX_SHADER);
GLU_EXPECT_NO_ERROR(gl.getError(), "glCreateShader() call failed");
/* Set vertex shader body */
const char* vs_body = "#version 400\n"
"\n"
"uniform vec4 expected_texel;\n"
"uniform int lod;\n"
"uniform sampler2D sampler;\n"
"\n"
"out int has_passed;\n"
"\n"
"void main()\n"
"{\n"
" vec4 data = textureLod(sampler, vec2(0.5, 0.5), lod);\n"
" const float epsilon = 1.0 / 256.0;\n"
"\n"
" if (abs(data.r - expected_texel.r) > epsilon ||\n"
" abs(data.g - expected_texel.g) > epsilon ||\n"
" abs(data.b - expected_texel.b) > epsilon ||\n"
" abs(data.a - expected_texel.a) > epsilon)\n"
" {\n"
" has_passed = 0;\n"
" }\n"
" else\n"
" {\n"
" has_passed = 1;\n"
" }\n"
"}\n";
gl.shaderSource(m_vs_id, 1 /* count */, &vs_body, NULL /* length */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glShaderSource() call failed");
/* Configure XFB */
const char* varying_name = "has_passed";
gl.transformFeedbackVaryings(m_po_id, 1 /* count */, &varying_name, GL_INTERLEAVED_ATTRIBS);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTransformFeedbackVaryings() call failed");
/* Attach the shader object to the program */
gl.attachShader(m_po_id, m_vs_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glAttachShader() call failed");
/* Compile the shader */
gl.compileShader(m_vs_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glCompileShader() call failed.");
/* Make sure the compilation has succeeded */
glw::GLint compile_status = GL_FALSE;
gl.getShaderiv(m_vs_id, GL_COMPILE_STATUS, &compile_status);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetShaderiv() call failed.");
if (compile_status != GL_TRUE)
{
m_testCtx.getLog() << tcu::TestLog::Message << "Shader compilation failed" << tcu::TestLog::EndMessage;
}
/* Link the program object */
gl.linkProgram(m_po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glLinkProgram() call failed");
/* Make sure the program object has linked successfully */
glw::GLint link_status = GL_FALSE;
gl.getProgramiv(m_po_id, GL_LINK_STATUS, &link_status);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetProgramiv() call failed");
if (link_status != GL_TRUE)
{
TCU_FAIL("Program linking failed");
}
/* Retrieve uniform locations */
m_po_expected_texel_uniform_location = gl.getUniformLocation(m_po_id, "expected_texel");
m_po_lod_uniform_location = gl.getUniformLocation(m_po_id, "lod");
if (m_po_expected_texel_uniform_location == -1)
{
TCU_FAIL("expected_texel is considered an inactive uniform which is invalid");
}
if (m_po_lod_uniform_location == -1)
{
TCU_FAIL("lod is considered an inactive uniform which is invalid");
}
}
/** Initializes all texture objects and all views used by the test. */
void TextureViewTestReferenceCounting::initTextures()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Generate texture IDs */
gl.genTextures(1, &m_parent_to_id);
gl.genTextures(1, &m_view_to_id);
gl.genTextures(1, &m_view_view_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures() call(s) failed");
/* Set up parent texture object A */
gl.bindTexture(GL_TEXTURE_2D, m_parent_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed");
gl.texStorage2D(GL_TEXTURE_2D, m_texture_n_levels, GL_RGBA8, m_texture_width, m_texture_height);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexStorage2D() call failed");
/* Set up view B */
gl.textureView(m_view_to_id, GL_TEXTURE_2D, m_parent_to_id, GL_RGBA8, 0, /* minlevel */
m_texture_n_levels, 0, /* minlayer */
1); /* numlayers */
GLU_EXPECT_NO_ERROR(gl.getError(), "glTextureView() call failed");
/* Set up view C */
gl.textureView(m_view_view_to_id, GL_TEXTURE_2D, m_view_to_id, GL_RGBA8, 0, /* minlevel */
m_texture_n_levels, 0, /* minlayer */
1); /* numlayers */
GLU_EXPECT_NO_ERROR(gl.getError(), "glTextureView() call failed");
/* Fill parent texture mip-maps with different static colors */
unsigned char* texel_data = new unsigned char[m_texture_width * m_texture_height * 4 /* components */];
for (unsigned int n_mipmap = 0; n_mipmap < m_mipmap_colors.size(); n_mipmap++)
{
const _norm_vec4& mipmap_color = m_mipmap_colors[n_mipmap];
const unsigned int mipmap_height = m_texture_height >> n_mipmap;
const unsigned int mipmap_width = m_texture_width >> n_mipmap;
for (unsigned int n_texel = 0; n_texel < mipmap_height * mipmap_width; ++n_texel)
{
unsigned char* texel_data_ptr = texel_data + n_texel * sizeof(mipmap_color.rgba);
memcpy(texel_data_ptr, mipmap_color.rgba, sizeof(mipmap_color.rgba));
} /* for (all relevant mip-map texels) */
/* Upload new mip-map contents */
gl.texSubImage2D(GL_TEXTURE_2D, n_mipmap, 0, /* xoffset */
0, /* yoffset */
m_texture_width >> n_mipmap, m_texture_height >> n_mipmap, GL_RGBA, GL_UNSIGNED_BYTE,
texel_data);
if (gl.getError() != GL_NO_ERROR)
{
delete[] texel_data;
texel_data = NULL;
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexSubImage2D() call failed");
}
} /* for (all mip-maps) */
delete[] texel_data;
texel_data = NULL;
}
/* Initialize all GL objects necessary to run the test */
void TextureViewTestReferenceCounting::initTest()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Initialize all texture objects */
initTextures();
/* Initialize test program object */
initProgram();
/* Initialize XFB */
initXFB();
/* Generate and bind a vertex array object, since we'll be doing a number of
* draw calls later in the test */
gl.genVertexArrays(1, &m_vao_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenVertexArrays() call failed.");
gl.bindVertexArray(m_vao_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindVertexArray() call failed.");
}
/** Initializes a buffer object later used for Transform Feedback and binds
* it to both general and indexed Transform Feedback binding points.
**/
void TextureViewTestReferenceCounting::initXFB()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Sanity checks */
DE_ASSERT(m_po_id != 0);
/* Generate a buffer object we'll use for Transform Feedback */
gl.genBuffers(1, &m_bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenBuffers() call failed.");
/* Set up buffer object storage. We need it to be large enough to hold
* sizeof(glw::GLint) per mipmap level */
const glw::GLint bo_size = (glw::GLint)(sizeof(glw::GLint) * m_mipmap_colors.size());
gl.bindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, m_bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer() call failed.");
gl.bindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0 /* index */, m_bo_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBufferBase() call failed.");
gl.bufferData(GL_TRANSFORM_FEEDBACK_BUFFER, bo_size, DE_NULL, /* data */
GL_STATIC_DRAW);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBufferData() call failed.");
}
/** Executes test iteration.
*
* @return Returns STOP when test has finished executing, CONTINUE if more iterations are needed.
*/
tcu::TestNode::IterateResult TextureViewTestReferenceCounting::iterate()
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
/* Carry on only if GL_ARB_texture_view extension is supported */
if (!m_context.getContextInfo().isExtensionSupported("GL_ARB_texture_view"))
{
throw tcu::NotSupportedError("GL_ARB_texture_view is not supported");
}
/* Initialize all GL objects used for the test */
initTest();
/* Make sure texture unit 0 is currently active */
gl.activeTexture(GL_TEXTURE0);
GLU_EXPECT_NO_ERROR(gl.getError(), "glActiveTexture() call failed.");
/* Activate the test program object */
gl.useProgram(m_po_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram() call failed.");
/* Run the test in three iterations:
*
* - Sample both the texture and all the views; once that's finished
* successfully, delete the parent texture.
* - Sample both views; once that's finished successfully, delete
* the first of the views;
* - Sample the only remaining view and make sure all mip-maps store
* valid colors.
**/
for (unsigned int n_iteration = 0; n_iteration < 3; /* iterations in total */
n_iteration++)
{
glw::GLuint to_ids_to_sample[3] = { 0, 0, 0 };
/* Configure IDs of textures we need to validate for current iteration */
switch (n_iteration)
{
case 0:
{
to_ids_to_sample[0] = m_parent_to_id;
to_ids_to_sample[1] = m_view_to_id;
to_ids_to_sample[2] = m_view_view_to_id;
break;
}
case 1:
{
to_ids_to_sample[0] = m_view_to_id;
to_ids_to_sample[1] = m_view_view_to_id;
break;
}
case 2:
{
to_ids_to_sample[0] = m_view_view_to_id;
break;
}
default:
TCU_FAIL("Invalid iteration index");
} /* switch (n_iteration) */
/* Iterate through all texture objects of our concern */
for (unsigned int n_texture = 0; n_texture < sizeof(to_ids_to_sample) / sizeof(to_ids_to_sample[0]);
n_texture++)
{
glw::GLint to_id = to_ids_to_sample[n_texture];
if (to_id == 0)
{
/* No texture object to sample from. */
continue;
}
/* Bind the texture object of our interest to GL_TEXTURE_2D */
gl.bindTexture(GL_TEXTURE_2D, to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture() call failed.");
/* Start XFB */
gl.beginTransformFeedback(GL_POINTS);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBeginTransformFeedback() call failed.");
/* Iterate through all mip-maps of the texture we're currently sampling */
for (unsigned int n_mipmap = 0; n_mipmap < m_mipmap_colors.size(); ++n_mipmap)
{
const _norm_vec4& expected_mipmap_color = m_mipmap_colors[n_mipmap];
/* Update uniforms first */
gl.uniform4f(m_po_expected_texel_uniform_location, (float)(expected_mipmap_color.rgba[0]) / 255.0f,
(float)(expected_mipmap_color.rgba[1]) / 255.0f,
(float)(expected_mipmap_color.rgba[2]) / 255.0f,
(float)(expected_mipmap_color.rgba[3]) / 255.0f);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform4f() call failed.");
gl.uniform1i(m_po_lod_uniform_location, n_mipmap);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i() call failed.");
/* Draw a single point. That'll feed the XFB buffer object with a single bool
* indicating if the test passed for the mip-map, or not */
gl.drawArrays(GL_POINTS, 0 /* first */, 1 /* count */);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDrawArrays() call failed.");
} /* for (all mip-maps) */
/* We're done - close XFB */
gl.endTransformFeedback();
GLU_EXPECT_NO_ERROR(gl.getError(), "glEndTransformFeedback() call failed.");
/* How did the sampling go? Map the buffer object containing the run
* results into process space.
*/
const glw::GLint* run_results_ptr =
(const glw::GLint*)gl.mapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, GL_READ_ONLY);
GLU_EXPECT_NO_ERROR(gl.getError(), "glMapBuffer() call failed.");
if (run_results_ptr == NULL)
{
TCU_FAIL("Pointer to mapped buffer object storage is NULL.");
}
/* Make sure all mip-maps were sampled successfully */
for (unsigned int n_mipmap = 0; n_mipmap < m_mipmap_colors.size(); ++n_mipmap)
{
if (run_results_ptr[n_mipmap] != 1)
{
/* Make sure the TF BO is unmapped before we throw the exception */
gl.unmapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER);
m_testCtx.getLog() << tcu::TestLog::Message << "Invalid data was sampled for mip-map level ["
<< n_mipmap << "] and iteration [" << n_iteration << "]"
<< tcu::TestLog::EndMessage;
TCU_FAIL("Mip-map sampling failed.");
}
} /* for (all mip-maps) */
/* Good to unmap the buffer object at this point */
gl.unmapBuffer(GL_TRANSFORM_FEEDBACK_BUFFER);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUnmapBuffer() call failed.");
} /* for (all initialized texture objects) */
/* Now that we're done with the iteration, we should delete iteration-specific texture
* object.
*/
switch (n_iteration)
{
case 0:
{
gl.deleteTextures(1, &m_parent_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDeleteTextures() call failed.");
m_parent_to_id = 0;
break;
}
case 1:
{
gl.deleteTextures(1, &m_view_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDeleteTextures() call failed.");
m_view_to_id = 0;
break;
}
case 2:
{
gl.deleteTextures(1, &m_view_view_to_id);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDeleteTextures() call failed.");
m_view_view_to_id = 0;
break;
}
default:
TCU_FAIL("Invalid iteration index");
} /* switch (n_iteration) */
} /* for (all iterations) */
/* Test case passed */
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
/** Constructor.
*
* @param context Rendering context.
**/
TextureViewTests::TextureViewTests(deqp::Context& context)
: TestCaseGroup(context, "texture_view", "Verifies \"texture view\" functionality")
{
/* Left blank on purpose */
}
/** Initializes a texture_storage_multisample test group.
*
**/
void TextureViewTests::init(void)
{
addChild(new TextureViewTestGetTexParameter(m_context));
addChild(new TextureViewTestErrors(m_context));
addChild(new TextureViewTestViewSampling(m_context));
addChild(new TextureViewTestViewClasses(m_context));
addChild(new TextureViewTestCoherency(m_context));
addChild(new TextureViewTestBaseAndMaxLevels(m_context));
addChild(new TextureViewTestReferenceCounting(m_context));
}
} /* glcts namespace */