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fuchsia / third_party / vulkan-cts / refs/heads/upstream/opengl-cts-4.6.4 / . / framework / common / tcuTexture.cpp
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/*-------------------------------------------------------------------------
* drawElements Quality Program Tester Core
* ----------------------------------------
*
* Copyright 2014 The Android Open Source Project
*
* 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 Reference Texture Implementation.
*//*--------------------------------------------------------------------*/
#include "tcuTexture.hpp"
#include "deInt32.h"
#include "deFloat16.h"
#include "deMath.h"
#include "deMemory.h"
#include "tcuTestLog.hpp"
#include "tcuSurface.hpp"
#include "tcuFloat.hpp"
#include "tcuTextureUtil.hpp"
#include "deStringUtil.hpp"
#include "deArrayUtil.hpp"
#include "tcuMatrix.hpp"
#include <limits>
namespace tcu
{
// \note No sign. Denorms are supported.
typedef Float<uint32_t, 5, 6, 15, FLOAT_SUPPORT_DENORM> Float11;
typedef Float<uint32_t, 5, 5, 15, FLOAT_SUPPORT_DENORM> Float10;
namespace
{
// Optimized getters for common formats.
// \todo [2012-11-14 pyry] Use intrinsics if available.
inline Vec4 readRGBA8888Float(const uint8_t *ptr)
{
return Vec4(ptr[0] / 255.0f, ptr[1] / 255.0f, ptr[2] / 255.0f, ptr[3] / 255.0f);
}
inline Vec4 readRGB888Float(const uint8_t *ptr)
{
return Vec4(ptr[0] / 255.0f, ptr[1] / 255.0f, ptr[2] / 255.0f, 1.0f);
}
inline IVec4 readRGBA8888Int(const uint8_t *ptr)
{
return IVec4(ptr[0], ptr[1], ptr[2], ptr[3]);
}
inline IVec4 readRGB888Int(const uint8_t *ptr)
{
return IVec4(ptr[0], ptr[1], ptr[2], 1);
}
// Optimized setters.
inline void writeRGBA8888Int(uint8_t *ptr, const IVec4 &val)
{
ptr[0] = (uint8_t)de::clamp(val[0], 0, 255);
ptr[1] = (uint8_t)de::clamp(val[1], 0, 255);
ptr[2] = (uint8_t)de::clamp(val[2], 0, 255);
ptr[3] = (uint8_t)de::clamp(val[3], 0, 255);
}
inline void writeRGB888Int(uint8_t *ptr, const IVec4 &val)
{
ptr[0] = (uint8_t)de::clamp(val[0], 0, 255);
ptr[1] = (uint8_t)de::clamp(val[1], 0, 255);
ptr[2] = (uint8_t)de::clamp(val[2], 0, 255);
}
inline void writeRGBA8888Float(uint8_t *ptr, const Vec4 &val)
{
ptr[0] = floatToU8(val[0]);
ptr[1] = floatToU8(val[1]);
ptr[2] = floatToU8(val[2]);
ptr[3] = floatToU8(val[3]);
}
inline void writeRGB888Float(uint8_t *ptr, const Vec4 &val)
{
ptr[0] = floatToU8(val[0]);
ptr[1] = floatToU8(val[1]);
ptr[2] = floatToU8(val[2]);
}
inline void writeUint24(uint8_t *dst, uint32_t val)
{
#if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
dst[0] = (uint8_t)((val & 0x0000FFu) >> 0u);
dst[1] = (uint8_t)((val & 0x00FF00u) >> 8u);
dst[2] = (uint8_t)((val & 0xFF0000u) >> 16u);
#else
dst[0] = (uint8_t)((val & 0xFF0000u) >> 16u);
dst[1] = (uint8_t)((val & 0x00FF00u) >> 8u);
dst[2] = (uint8_t)((val & 0x0000FFu) >> 0u);
#endif
}
inline uint32_t readUint24(const uint8_t *src)
{
#if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
return (((uint32_t)src[0]) << 0u) | (((uint32_t)src[1]) << 8u) | (((uint32_t)src[2]) << 16u);
#else
return (((uint32_t)src[0]) << 16u) | (((uint32_t)src[1]) << 8u) | (((uint32_t)src[2]) << 0u);
#endif
}
inline uint8_t readUint32Low8(const uint8_t *src)
{
#if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
const uint32_t uint32ByteOffsetBits0To8 = 0; //!< least significant byte in the lowest address
#else
const uint32_t uint32ByteOffsetBits0To8 = 3; //!< least significant byte in the highest address
#endif
return src[uint32ByteOffsetBits0To8];
}
inline uint8_t readUint32High8(const uint8_t *src)
{
#if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
const uint32_t uint32ByteOffsetBits24To32 = 3;
#else
const uint32_t uint32ByteOffsetBits24To32 = 0;
#endif
return src[uint32ByteOffsetBits24To32];
}
inline void writeUint32Low8(uint8_t *dst, uint8_t val)
{
#if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
const uint32_t uint32ByteOffsetBits0To8 = 0; //!< least significant byte in the lowest address
#else
const uint32_t uint32ByteOffsetBits0To8 = 3; //!< least significant byte in the highest address
#endif
dst[uint32ByteOffsetBits0To8] = val;
}
inline void writeUint32High8(uint8_t *dst, uint8_t val)
{
#if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
const uint32_t uint32ByteOffsetBits24To32 = 3;
#else
const uint32_t uint32ByteOffsetBits24To32 = 0;
#endif
dst[uint32ByteOffsetBits24To32] = val;
}
inline uint32_t readUint32High16(const uint8_t *src)
{
#if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
const uint32_t uint32ByteOffset16To32 = 2;
#else
const uint32_t uint32ByteOffset16To32 = 0;
#endif
return *(const uint16_t *)(src + uint32ByteOffset16To32);
}
inline void writeUint32High16(uint8_t *dst, uint16_t val)
{
#if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
const uint32_t uint32ByteOffset16To32 = 2;
#else
const uint32_t uint32ByteOffset16To32 = 0;
#endif
*(uint16_t *)(dst + uint32ByteOffset16To32) = val;
}
inline uint32_t readUint32Low24(const uint8_t *src)
{
#if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
const uint32_t uint32ByteOffset0To24 = 0;
#else
const uint32_t uint32ByteOffset0To24 = 1;
#endif
return readUint24(src + uint32ByteOffset0To24);
}
inline uint32_t readUint32High24(const uint8_t *src)
{
#if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
const uint32_t uint32ByteOffset8To32 = 1;
#else
const uint32_t uint32ByteOffset8To32 = 0;
#endif
return readUint24(src + uint32ByteOffset8To32);
}
inline void writeUint32Low24(uint8_t *dst, uint32_t val)
{
#if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
const uint32_t uint32ByteOffset0To24 = 0;
#else
const uint32_t uint32ByteOffset0To24 = 1;
#endif
writeUint24(dst + uint32ByteOffset0To24, val);
}
inline void writeUint32High24(uint8_t *dst, uint32_t val)
{
#if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
const uint32_t uint32ByteOffset8To32 = 1;
#else
const uint32_t uint32ByteOffset8To32 = 0;
#endif
writeUint24(dst + uint32ByteOffset8To32, val);
}
// \todo [2011-09-21 pyry] Move to tcutil?
template <typename T>
inline T convertSatRte(float f)
{
// \note Doesn't work for 64-bit types
DE_STATIC_ASSERT(sizeof(T) < sizeof(uint64_t));
DE_STATIC_ASSERT((-3 % 2 != 0) && (-4 % 2 == 0));
int64_t minVal = std::numeric_limits<T>::min();
int64_t maxVal = std::numeric_limits<T>::max();
float q = deFloatFrac(f);
int64_t intVal = (int64_t)(f - q);
// Rounding.
if (q == 0.5f)
{
if (intVal % 2 != 0)
intVal++;
}
else if (q > 0.5f)
intVal++;
// else Don't add anything
// Saturate.
intVal = de::max(minVal, de::min(maxVal, intVal));
return (T)intVal;
}
inline uint32_t convertSatRteUint24(float f)
{
const uint32_t rounded = convertSatRte<uint32_t>(f);
const uint32_t maxUint24 = 0xFFFFFFu;
return de::min(rounded, maxUint24);
}
inline uint16_t convertSatRteUint10(float f)
{
const uint16_t rounded = convertSatRte<uint16_t>(f);
const uint16_t maxUint10 = 0x3FFu;
return de::min(rounded, maxUint10);
}
inline uint16_t convertSatRteUint12(float f)
{
const uint16_t rounded = convertSatRte<uint16_t>(f);
const uint16_t maxUint12 = 0xFFFu;
return de::min(rounded, maxUint12);
}
inline float channelToFloat(const uint8_t *value, TextureFormat::ChannelType type)
{
// make sure this table is updated if format table is updated
DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
switch (type)
{
case TextureFormat::SNORM_INT8:
return de::max(-1.0f, (float)*((const int8_t *)value) / 127.0f);
case TextureFormat::SNORM_INT16:
return de::max(-1.0f, (float)*((const int16_t *)value) / 32767.0f);
case TextureFormat::SNORM_INT32:
return de::max(-1.0f, (float)*((const int32_t *)value) / 2147483647.0f);
case TextureFormat::UNORM_INT8:
return (float)*((const uint8_t *)value) / 255.0f;
case TextureFormat::UNORM_INT16:
return (float)*((const uint16_t *)value) / 65535.0f;
case TextureFormat::UNORM_INT24:
return (float)readUint24(value) / 16777215.0f;
case TextureFormat::UNORM_INT32:
return (float)*((const uint32_t *)value) / 4294967295.0f;
case TextureFormat::SIGNED_INT8:
return (float)*((const int8_t *)value);
case TextureFormat::SIGNED_INT16:
return (float)*((const int16_t *)value);
case TextureFormat::SIGNED_INT32:
return (float)*((const int32_t *)value);
case TextureFormat::SIGNED_INT64:
return (float)*((const int64_t *)value);
case TextureFormat::UNSIGNED_INT8:
return (float)*((const uint8_t *)value);
case TextureFormat::UNSIGNED_INT16:
return (float)*((const uint16_t *)value);
case TextureFormat::UNSIGNED_INT24:
return (float)readUint24(value);
case TextureFormat::UNSIGNED_INT32:
return (float)*((const uint32_t *)value);
case TextureFormat::UNSIGNED_INT64:
return (float)*((const uint64_t *)value);
case TextureFormat::HALF_FLOAT:
return deFloat16To32(*(const deFloat16 *)value);
case TextureFormat::FLOAT:
return *((const float *)value);
case TextureFormat::FLOAT64:
return (float)*((const double *)value);
case TextureFormat::UNORM_SHORT_10:
return (float)((*((const uint16_t *)value)) >> 6u) / 1023.0f;
case TextureFormat::UNORM_SHORT_12:
return (float)((*((const uint16_t *)value)) >> 4u) / 4095.0f;
case TextureFormat::USCALED_INT8:
return (float)*((const uint8_t *)value);
case TextureFormat::USCALED_INT16:
return (float)*((const uint16_t *)value);
case TextureFormat::SSCALED_INT8:
return (float)*((const int8_t *)value);
case TextureFormat::SSCALED_INT16:
return (float)*((const int16_t *)value);
default:
DE_ASSERT(false);
return 0.0f;
}
}
template <class T>
inline T channelToIntType(const uint8_t *value, TextureFormat::ChannelType type)
{
// make sure this table is updated if format table is updated
DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
switch (type)
{
case TextureFormat::SNORM_INT8:
return (T) * ((const int8_t *)value);
case TextureFormat::SNORM_INT16:
return (T) * ((const int16_t *)value);
case TextureFormat::SNORM_INT32:
return (T) * ((const int32_t *)value);
case TextureFormat::UNORM_INT8:
return (T) * ((const uint8_t *)value);
case TextureFormat::UNORM_INT16:
return (T) * ((const uint16_t *)value);
case TextureFormat::UNORM_INT24:
return (T)readUint24(value);
case TextureFormat::UNORM_INT32:
return (T) * ((const uint32_t *)value);
case TextureFormat::SIGNED_INT8:
return (T) * ((const int8_t *)value);
case TextureFormat::SIGNED_INT16:
return (T) * ((const int16_t *)value);
case TextureFormat::SIGNED_INT32:
return (T) * ((const int32_t *)value);
case TextureFormat::SIGNED_INT64:
return (T) * ((const int64_t *)value);
case TextureFormat::UNSIGNED_INT8:
return (T) * ((const uint8_t *)value);
case TextureFormat::UNSIGNED_INT16:
return (T) * ((const uint16_t *)value);
case TextureFormat::UNSIGNED_INT24:
return (T)readUint24(value);
case TextureFormat::UNSIGNED_INT32:
return (T) * ((const uint32_t *)value);
case TextureFormat::UNSIGNED_INT64:
return (T) * ((const uint64_t *)value);
case TextureFormat::HALF_FLOAT:
return (T)deFloat16To32(*(const deFloat16 *)value);
case TextureFormat::FLOAT:
return (T) * ((const float *)value);
case TextureFormat::FLOAT64:
return (T) * ((const double *)value);
case TextureFormat::UNORM_SHORT_10:
return (T)((*(((const uint16_t *)value))) >> 6u);
case TextureFormat::UNORM_SHORT_12:
return (T)((*(((const uint16_t *)value))) >> 4u);
case TextureFormat::USCALED_INT8:
return (T) * ((const uint8_t *)value);
case TextureFormat::USCALED_INT16:
return (T) * ((const uint16_t *)value);
case TextureFormat::SSCALED_INT8:
return (T) * ((const int8_t *)value);
case TextureFormat::SSCALED_INT16:
return (T) * ((const int16_t *)value);
default:
DE_ASSERT(false);
return 0;
}
}
inline uint64_t retrieveChannelBitsAsUint64(const uint8_t *value, TextureFormat::ChannelType type)
{
// make sure this table is updated if format table is updated
DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
switch (type)
{
case TextureFormat::SNORM_INT8:
return (uint64_t) * ((const uint8_t *)value);
case TextureFormat::SNORM_INT16:
return (uint64_t) * ((const uint16_t *)value);
case TextureFormat::SNORM_INT32:
return (uint64_t) * ((const uint32_t *)value);
case TextureFormat::UNORM_INT8:
return (uint64_t) * ((const uint8_t *)value);
case TextureFormat::UNORM_INT16:
return (uint64_t) * ((const uint16_t *)value);
case TextureFormat::UNORM_INT24:
return (uint64_t)readUint24(value);
case TextureFormat::UNORM_INT32:
return (uint64_t) * ((const uint32_t *)value);
case TextureFormat::SIGNED_INT8:
return (uint64_t) * ((const uint8_t *)value);
case TextureFormat::SIGNED_INT16:
return (uint64_t) * ((const uint16_t *)value);
case TextureFormat::SIGNED_INT32:
return (uint64_t) * ((const uint32_t *)value);
case TextureFormat::SIGNED_INT64:
return (uint64_t) * ((const uint64_t *)value);
case TextureFormat::UNSIGNED_INT8:
return (uint64_t) * ((const uint8_t *)value);
case TextureFormat::UNSIGNED_INT16:
return (uint64_t) * ((const uint16_t *)value);
case TextureFormat::UNSIGNED_INT24:
return (uint64_t)readUint24(value);
case TextureFormat::UNSIGNED_INT32:
return (uint64_t) * ((const uint32_t *)value);
case TextureFormat::UNSIGNED_INT64:
return (uint64_t) * ((const uint64_t *)value);
case TextureFormat::HALF_FLOAT:
return (uint64_t) * ((const uint16_t *)value);
case TextureFormat::FLOAT:
return (uint64_t) * ((const uint32_t *)value);
case TextureFormat::FLOAT64:
return (uint64_t) * ((const uint64_t *)value);
case TextureFormat::UNORM_SHORT_10:
return (uint64_t)((*((const uint16_t *)value)) >> 6u);
case TextureFormat::UNORM_SHORT_12:
return (uint64_t)((*((const uint16_t *)value)) >> 4u);
case TextureFormat::USCALED_INT8:
return (uint64_t) * ((const uint8_t *)value);
case TextureFormat::USCALED_INT16:
return (uint64_t) * ((const uint16_t *)value);
case TextureFormat::SSCALED_INT8:
return (uint64_t) * ((const uint8_t *)value);
case TextureFormat::SSCALED_INT16:
return (uint64_t) * ((const uint16_t *)value);
default:
DE_ASSERT(false);
return 0;
}
}
inline int channelToInt(const uint8_t *value, TextureFormat::ChannelType type)
{
return channelToIntType<int>(value, type);
}
void floatToChannel(uint8_t *dst, float src, TextureFormat::ChannelType type)
{
// make sure this table is updated if format table is updated
DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
switch (type)
{
case TextureFormat::SNORM_INT8:
*((int8_t *)dst) = convertSatRte<int8_t>(src * 127.0f);
break;
case TextureFormat::SNORM_INT16:
*((int16_t *)dst) = convertSatRte<int16_t>(src * 32767.0f);
break;
case TextureFormat::SNORM_INT32:
*((int32_t *)dst) = convertSatRte<int32_t>(src * 2147483647.0f);
break;
case TextureFormat::UNORM_INT8:
*((uint8_t *)dst) = convertSatRte<uint8_t>(src * 255.0f);
break;
case TextureFormat::UNORM_INT16:
*((uint16_t *)dst) = convertSatRte<uint16_t>(src * 65535.0f);
break;
case TextureFormat::UNORM_INT24:
writeUint24(dst, convertSatRteUint24(src * 16777215.0f));
break;
case TextureFormat::UNORM_INT32:
*((uint32_t *)dst) = convertSatRte<uint32_t>(src * 4294967295.0f);
break;
case TextureFormat::SIGNED_INT8:
*((int8_t *)dst) = convertSatRte<int8_t>(src);
break;
case TextureFormat::SIGNED_INT16:
*((int16_t *)dst) = convertSatRte<int16_t>(src);
break;
case TextureFormat::SIGNED_INT32:
*((int32_t *)dst) = convertSatRte<int32_t>(src);
break;
case TextureFormat::UNSIGNED_INT8:
*((uint8_t *)dst) = convertSatRte<uint8_t>(src);
break;
case TextureFormat::UNSIGNED_INT16:
*((uint16_t *)dst) = convertSatRte<uint16_t>(src);
break;
case TextureFormat::UNSIGNED_INT24:
writeUint24(dst, convertSatRteUint24(src));
break;
case TextureFormat::UNSIGNED_INT32:
*((uint32_t *)dst) = convertSatRte<uint32_t>(src);
break;
case TextureFormat::HALF_FLOAT:
*((deFloat16 *)dst) = deFloat32To16(src);
break;
case TextureFormat::FLOAT:
*((float *)dst) = src;
break;
case TextureFormat::FLOAT64:
*((double *)dst) = (double)src;
break;
case TextureFormat::UNORM_SHORT_10:
*((uint16_t *)dst) = (uint16_t)(convertSatRteUint10(src * 1023.0f) << 6u);
break;
case TextureFormat::UNORM_SHORT_12:
*((uint16_t *)dst) = (uint16_t)(convertSatRteUint12(src * 4095.0f) << 4u);
break;
case TextureFormat::USCALED_INT8:
*((uint8_t *)dst) = convertSatRte<uint8_t>(src);
break;
case TextureFormat::USCALED_INT16:
*((uint16_t *)dst) = convertSatRte<uint16_t>(src);
break;
case TextureFormat::SSCALED_INT8:
*((int8_t *)dst) = convertSatRte<int8_t>(src);
break;
case TextureFormat::SSCALED_INT16:
*((int16_t *)dst) = convertSatRte<int16_t>(src);
break;
default:
DE_ASSERT(false);
}
}
template <typename T, typename S>
static inline T convertSat(S src)
{
S min = (S)std::numeric_limits<T>::min();
S max = (S)std::numeric_limits<T>::max();
if (src < min)
return (T)min;
else if (src > max)
return (T)max;
else
return (T)src;
}
template <typename S>
static inline uint32_t convertSatUint24(S src)
{
S min = (S)0u;
S max = (S)0xFFFFFFu;
if (src < min)
return (uint32_t)min;
else if (src > max)
return (uint32_t)max;
else
return (uint32_t)src;
}
template <typename S>
static inline uint16_t convertSatUint10(S src)
{
S min = (S)0u;
S max = (S)0x3FFu;
if (src < min)
return (uint16_t)min;
else if (src > max)
return (uint16_t)max;
else
return (uint16_t)src;
}
template <typename S>
static inline uint16_t convertSatUint12(S src)
{
S min = (S)0u;
S max = (S)0xFFFu;
if (src < min)
return (uint16_t)min;
else if (src > max)
return (uint16_t)max;
else
return (uint16_t)src;
}
void intToChannel(uint8_t *dst, int src, TextureFormat::ChannelType type)
{
// make sure this table is updated if format table is updated
DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
switch (type)
{
case TextureFormat::SNORM_INT8:
*((int8_t *)dst) = convertSat<int8_t>(src);
break;
case TextureFormat::SNORM_INT16:
*((int16_t *)dst) = convertSat<int16_t>(src);
break;
case TextureFormat::UNORM_INT8:
*((uint8_t *)dst) = convertSat<uint8_t>(src);
break;
case TextureFormat::UNORM_INT16:
*((uint16_t *)dst) = convertSat<uint16_t>(src);
break;
case TextureFormat::UNORM_INT24:
writeUint24(dst, convertSatUint24(src));
break;
case TextureFormat::SIGNED_INT8:
*((int8_t *)dst) = convertSat<int8_t>(src);
break;
case TextureFormat::SIGNED_INT16:
*((int16_t *)dst) = convertSat<int16_t>(src);
break;
case TextureFormat::SIGNED_INT32:
*((int32_t *)dst) = convertSat<int32_t>(src);
break;
case TextureFormat::SIGNED_INT64:
*((int64_t *)dst) = convertSat<int64_t>((int64_t)src);
break;
case TextureFormat::UNSIGNED_INT8:
*((uint8_t *)dst) = convertSat<uint8_t>((uint32_t)src);
break;
case TextureFormat::UNSIGNED_INT16:
*((uint16_t *)dst) = convertSat<uint16_t>((uint32_t)src);
break;
case TextureFormat::UNSIGNED_INT24:
writeUint24(dst, convertSatUint24((uint32_t)src));
break;
case TextureFormat::UNSIGNED_INT32:
*((uint32_t *)dst) = convertSat<uint32_t>((uint32_t)src);
break;
case TextureFormat::UNSIGNED_INT64:
*((uint64_t *)dst) = convertSat<uint64_t>((uint64_t)src);
break;
case TextureFormat::HALF_FLOAT:
*((deFloat16 *)dst) = deFloat32To16((float)src);
break;
case TextureFormat::FLOAT:
*((float *)dst) = (float)src;
break;
case TextureFormat::FLOAT64:
*((double *)dst) = (double)src;
break;
case TextureFormat::UNORM_SHORT_10:
*((uint16_t *)dst) = (uint16_t)(convertSatUint10(src) << 6u);
break;
case TextureFormat::UNORM_SHORT_12:
*((uint16_t *)dst) = (uint16_t)(convertSatUint12(src) << 4u);
break;
case TextureFormat::USCALED_INT8:
*((uint8_t *)dst) = convertSat<uint8_t>((uint32_t)src);
break;
case TextureFormat::USCALED_INT16:
*((uint16_t *)dst) = convertSat<uint16_t>((uint32_t)src);
break;
case TextureFormat::SSCALED_INT8:
*((int8_t *)dst) = convertSat<int8_t>(src);
break;
case TextureFormat::SSCALED_INT16:
*((int16_t *)dst) = convertSat<int16_t>(src);
break;
default:
DE_ASSERT(false);
}
}
inline float channelToUnormFloat(uint32_t src, int bits)
{
const uint32_t maxVal = (1u << bits) - 1;
// \note Will lose precision if bits > 23
return (float)src / (float)maxVal;
}
//! Extend < 32b signed integer to 32b
inline int32_t signExtend(uint32_t src, int bits)
{
const uint32_t signBit = 1u << (bits - 1);
src |= ~((src & signBit) - 1);
return (int32_t)src;
}
inline float channelToSnormFloat(uint32_t src, int bits)
{
const uint32_t range = (1u << (bits - 1)) - 1;
// \note Will lose precision if bits > 24
return de::max(-1.0f, (float)signExtend(src, bits) / (float)range);
}
inline uint32_t unormFloatToChannel(float src, int bits)
{
const uint32_t maxVal = (1u << bits) - 1;
const uint32_t intVal = convertSatRte<uint32_t>(src * (float)maxVal);
return de::min(intVal, maxVal);
}
inline uint32_t snormFloatToChannel(float src, int bits)
{
const int32_t range = (int32_t)((1u << (bits - 1)) - 1u);
const uint32_t mask = (1u << bits) - 1;
const int32_t intVal = convertSatRte<int32_t>(src * (float)range);
return (uint32_t)de::clamp(intVal, -range, range) & mask;
}
inline uint32_t uintToChannel(uint32_t src, int bits)
{
const uint32_t maxVal = (1u << bits) - 1;
return de::min(src, maxVal);
}
inline uint32_t intToChannel(int32_t src, int bits)
{
const int32_t minVal = -(int32_t)(1u << (bits - 1));
const int32_t maxVal = (int32_t)((1u << (bits - 1)) - 1u);
const uint32_t mask = (1u << bits) - 1;
return (uint32_t)de::clamp(src, minVal, maxVal) & mask;
}
tcu::Vec4 unpackRGB999E5(uint32_t color)
{
const int mBits = 9;
const int eBias = 15;
uint32_t exp = color >> 27;
uint32_t bs = (color >> 18) & ((1 << 9) - 1);
uint32_t gs = (color >> 9) & ((1 << 9) - 1);
uint32_t rs = color & ((1 << 9) - 1);
float e = deFloatPow(2.0f, (float)((int)exp - eBias - mBits));
float r = (float)rs * e;
float g = (float)gs * e;
float b = (float)bs * e;
return tcu::Vec4(r, g, b, 1.0f);
}
bool isColorOrder(TextureFormat::ChannelOrder order)
{
DE_STATIC_ASSERT(TextureFormat::CHANNELORDER_LAST == 22);
switch (order)
{
case TextureFormat::R:
case TextureFormat::A:
case TextureFormat::I:
case TextureFormat::L:
case TextureFormat::LA:
case TextureFormat::RG:
case TextureFormat::RA:
case TextureFormat::RGB:
case TextureFormat::RGBA:
case TextureFormat::ARGB:
case TextureFormat::ABGR:
case TextureFormat::BGR:
case TextureFormat::BGRA:
case TextureFormat::sR:
case TextureFormat::sRG:
case TextureFormat::sRGB:
case TextureFormat::sRGBA:
case TextureFormat::sBGR:
case TextureFormat::sBGRA:
return true;
default:
return false;
}
}
float getImageViewMinLod(ImageViewMinLod &l)
{
return (l.mode == IMAGEVIEWMINLODMODE_PREFERRED) ? l.value : deFloatFloor(l.value);
}
} // namespace
bool isValid(TextureFormat format)
{
const bool isColor = isColorOrder(format.order);
switch (format.type)
{
case TextureFormat::SNORM_INT8:
case TextureFormat::SNORM_INT16:
case TextureFormat::SNORM_INT32:
return isColor;
case TextureFormat::UNORM_INT8:
case TextureFormat::UNORM_INT16:
case TextureFormat::UNORM_INT24:
case TextureFormat::UNORM_INT32:
return isColor || format.order == TextureFormat::D;
case TextureFormat::UNORM_BYTE_44:
case TextureFormat::UNSIGNED_BYTE_44:
return format.order == TextureFormat::RG;
case TextureFormat::UNORM_SHORT_565:
case TextureFormat::UNORM_SHORT_555:
case TextureFormat::UNSIGNED_SHORT_565:
return format.order == TextureFormat::RGB || format.order == TextureFormat::BGR;
case TextureFormat::UNORM_SHORT_4444:
case TextureFormat::UNORM_SHORT_5551:
case TextureFormat::UNSIGNED_SHORT_4444:
case TextureFormat::UNSIGNED_SHORT_5551:
return format.order == TextureFormat::RGBA || format.order == TextureFormat::BGRA ||
format.order == TextureFormat::ARGB || format.order == TextureFormat::ABGR;
case TextureFormat::UNORM_SHORT_1555:
return format.order == TextureFormat::ARGB || format.order == TextureFormat::ABGR;
case TextureFormat::UNORM_INT_101010:
return format.order == TextureFormat::RGB;
case TextureFormat::SNORM_INT_1010102_REV:
case TextureFormat::UNORM_INT_1010102_REV:
case TextureFormat::SIGNED_INT_1010102_REV:
case TextureFormat::UNSIGNED_INT_1010102_REV:
case TextureFormat::USCALED_INT_1010102_REV:
case TextureFormat::SSCALED_INT_1010102_REV:
return format.order == TextureFormat::RGBA || format.order == TextureFormat::BGRA;
case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV:
case TextureFormat::UNSIGNED_INT_999_E5_REV:
return format.order == TextureFormat::RGB;
case TextureFormat::UNSIGNED_INT_16_8_8:
return format.order == TextureFormat::DS;
case TextureFormat::UNSIGNED_INT_24_8:
case TextureFormat::UNSIGNED_INT_24_8_REV:
return format.order == TextureFormat::D || format.order == TextureFormat::DS;
case TextureFormat::SIGNED_INT8:
case TextureFormat::SIGNED_INT16:
case TextureFormat::SIGNED_INT32:
case TextureFormat::SSCALED_INT8:
case TextureFormat::SSCALED_INT16:
case TextureFormat::SIGNED_INT64:
return isColor;
case TextureFormat::UNSIGNED_INT8:
case TextureFormat::UNSIGNED_INT16:
case TextureFormat::UNSIGNED_INT24:
case TextureFormat::UNSIGNED_INT32:
case TextureFormat::USCALED_INT8:
case TextureFormat::USCALED_INT16:
case TextureFormat::UNSIGNED_INT64:
return isColor || format.order == TextureFormat::S;
case TextureFormat::HALF_FLOAT:
case TextureFormat::FLOAT:
case TextureFormat::FLOAT64:
return isColor || format.order == TextureFormat::D;
case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV:
return format.order == TextureFormat::DS;
case TextureFormat::UNORM_SHORT_10:
case TextureFormat::UNORM_SHORT_12:
return isColor;
default:
DE_FATAL("Unknown format");
return 0u;
}
DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
}
int getNumUsedChannels(TextureFormat::ChannelOrder order)
{
// make sure this table is updated if type table is updated
DE_STATIC_ASSERT(TextureFormat::CHANNELORDER_LAST == 22);
switch (order)
{
case TextureFormat::R:
return 1;
case TextureFormat::A:
return 1;
case TextureFormat::I:
return 1;
case TextureFormat::L:
return 1;
case TextureFormat::LA:
return 2;
case TextureFormat::RG:
return 2;
case TextureFormat::RA:
return 2;
case TextureFormat::RGB:
return 3;
case TextureFormat::RGBA:
return 4;
case TextureFormat::ARGB:
return 4;
case TextureFormat::ABGR:
return 4;
case TextureFormat::BGR:
return 3;
case TextureFormat::BGRA:
return 4;
case TextureFormat::sR:
return 1;
case TextureFormat::sRG:
return 2;
case TextureFormat::sRGB:
return 3;
case TextureFormat::sRGBA:
return 4;
case TextureFormat::sBGR:
return 3;
case TextureFormat::sBGRA:
return 4;
case TextureFormat::D:
return 1;
case TextureFormat::S:
return 1;
case TextureFormat::DS:
return 2;
default:
DE_ASSERT(false);
return 0;
}
}
bool hasAlphaChannel(TextureFormat::ChannelOrder order)
{
// make sure this table is updated if type table is updated
DE_STATIC_ASSERT(TextureFormat::CHANNELORDER_LAST == 22);
switch (order)
{
case TextureFormat::A:
case TextureFormat::LA:
case TextureFormat::RG:
case TextureFormat::RA:
case TextureFormat::RGBA:
case TextureFormat::ARGB:
case TextureFormat::ABGR:
case TextureFormat::BGRA:
case TextureFormat::sRGBA:
case TextureFormat::sBGRA:
return true;
default:
return false;
}
}
int getChannelSize(TextureFormat::ChannelType type)
{
// make sure this table is updated if format table is updated
DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
switch (type)
{
case TextureFormat::SNORM_INT8:
return 1;
case TextureFormat::SNORM_INT16:
return 2;
case TextureFormat::SNORM_INT32:
return 4;
case TextureFormat::UNORM_INT8:
return 1;
case TextureFormat::UNORM_INT16:
return 2;
case TextureFormat::UNORM_INT24:
return 3;
case TextureFormat::UNORM_INT32:
return 4;
case TextureFormat::SIGNED_INT8:
return 1;
case TextureFormat::SIGNED_INT16:
return 2;
case TextureFormat::SIGNED_INT32:
return 4;
case TextureFormat::SIGNED_INT64:
return 8;
case TextureFormat::UNSIGNED_INT8:
return 1;
case TextureFormat::UNSIGNED_INT16:
return 2;
case TextureFormat::UNSIGNED_INT24:
return 3;
case TextureFormat::UNSIGNED_INT32:
return 4;
case TextureFormat::UNSIGNED_INT64:
return 8;
case TextureFormat::HALF_FLOAT:
return 2;
case TextureFormat::FLOAT:
return 4;
case TextureFormat::FLOAT64:
return 8;
case TextureFormat::UNORM_SHORT_10:
return 2;
case TextureFormat::UNORM_SHORT_12:
return 2;
case TextureFormat::USCALED_INT8:
return 1;
case TextureFormat::USCALED_INT16:
return 2;
case TextureFormat::SSCALED_INT8:
return 1;
case TextureFormat::SSCALED_INT16:
return 2;
default:
DE_ASSERT(false);
return 0;
}
}
/** Get pixel size in bytes. */
int getPixelSize(TextureFormat format)
{
const TextureFormat::ChannelOrder order = format.order;
const TextureFormat::ChannelType type = format.type;
DE_ASSERT(isValid(format));
// make sure this table is updated if format table is updated
DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
switch (type)
{
case TextureFormat::UNORM_BYTE_44:
case TextureFormat::UNSIGNED_BYTE_44:
return 1;
case TextureFormat::UNORM_SHORT_565:
case TextureFormat::UNORM_SHORT_555:
case TextureFormat::UNORM_SHORT_4444:
case TextureFormat::UNORM_SHORT_5551:
case TextureFormat::UNORM_SHORT_1555:
case TextureFormat::UNSIGNED_SHORT_565:
case TextureFormat::UNSIGNED_SHORT_4444:
case TextureFormat::UNSIGNED_SHORT_5551:
return 2;
case TextureFormat::UNORM_INT_101010:
case TextureFormat::UNSIGNED_INT_999_E5_REV:
case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV:
case TextureFormat::SNORM_INT_1010102_REV:
case TextureFormat::UNORM_INT_1010102_REV:
case TextureFormat::SIGNED_INT_1010102_REV:
case TextureFormat::UNSIGNED_INT_1010102_REV:
case TextureFormat::UNSIGNED_INT_24_8:
case TextureFormat::UNSIGNED_INT_24_8_REV:
case TextureFormat::UNSIGNED_INT_16_8_8:
case TextureFormat::USCALED_INT_1010102_REV:
case TextureFormat::SSCALED_INT_1010102_REV:
return 4;
case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV:
return 8;
default:
return getNumUsedChannels(order) * getChannelSize(type);
}
}
int TextureFormat::getPixelSize(void) const
{
return ::tcu::getPixelSize(*this);
}
const TextureSwizzle &getChannelReadSwizzle(TextureFormat::ChannelOrder order)
{
// make sure to update these tables when channel orders are updated
DE_STATIC_ASSERT(TextureFormat::CHANNELORDER_LAST == 22);
static const TextureSwizzle INV = {{TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ZERO,
TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ONE}};
static const TextureSwizzle R = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_ZERO,
TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ONE}};
static const TextureSwizzle A = {{TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ZERO,
TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_0}};
static const TextureSwizzle I = {
{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_0}};
static const TextureSwizzle L = {
{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_ONE}};
static const TextureSwizzle LA = {
{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_1}};
static const TextureSwizzle RG = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_1,
TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ONE}};
static const TextureSwizzle RA = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_ZERO,
TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_1}};
static const TextureSwizzle RGB = {
{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_2, TextureSwizzle::CHANNEL_ONE}};
static const TextureSwizzle RGBA = {
{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_2, TextureSwizzle::CHANNEL_3}};
static const TextureSwizzle BGR = {
{TextureSwizzle::CHANNEL_2, TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_ONE}};
static const TextureSwizzle BGRA = {
{TextureSwizzle::CHANNEL_2, TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3}};
static const TextureSwizzle ARGB = {
{TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_2, TextureSwizzle::CHANNEL_3, TextureSwizzle::CHANNEL_0}};
static const TextureSwizzle ABGR = {
{TextureSwizzle::CHANNEL_3, TextureSwizzle::CHANNEL_2, TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_0}};
static const TextureSwizzle D = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_ZERO,
TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ONE}};
static const TextureSwizzle S = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_ZERO,
TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ONE}};
static const TextureSwizzle DS = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_1,
TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ONE}};
switch (order)
{
case TextureFormat::R:
return R;
case TextureFormat::A:
return A;
case TextureFormat::I:
return I;
case TextureFormat::L:
return L;
case TextureFormat::LA:
return LA;
case TextureFormat::RG:
return RG;
case TextureFormat::RA:
return RA;
case TextureFormat::RGB:
return RGB;
case TextureFormat::RGBA:
return RGBA;
case TextureFormat::ARGB:
return ARGB;
case TextureFormat::ABGR:
return ABGR;
case TextureFormat::BGR:
return BGR;
case TextureFormat::BGRA:
return BGRA;
case TextureFormat::sR:
return R;
case TextureFormat::sRG:
return RG;
case TextureFormat::sRGB:
return RGB;
case TextureFormat::sRGBA:
return RGBA;
case TextureFormat::sBGR:
return BGR;
case TextureFormat::sBGRA:
return BGRA;
case TextureFormat::D:
return D;
case TextureFormat::S:
return S;
case TextureFormat::DS:
return DS;
default:
DE_ASSERT(false);
return INV;
}
}
const TextureSwizzle &getChannelWriteSwizzle(TextureFormat::ChannelOrder order)
{
// make sure to update these tables when channel orders are updated
DE_STATIC_ASSERT(TextureFormat::CHANNELORDER_LAST == 22);
static const TextureSwizzle INV = {{TextureSwizzle::CHANNEL_LAST, TextureSwizzle::CHANNEL_LAST,
TextureSwizzle::CHANNEL_LAST, TextureSwizzle::CHANNEL_LAST}};
static const TextureSwizzle R = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_LAST,
TextureSwizzle::CHANNEL_LAST, TextureSwizzle::CHANNEL_LAST}};
static const TextureSwizzle A = {{TextureSwizzle::CHANNEL_3, TextureSwizzle::CHANNEL_LAST,
TextureSwizzle::CHANNEL_LAST, TextureSwizzle::CHANNEL_LAST}};
static const TextureSwizzle I = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_LAST,
TextureSwizzle::CHANNEL_LAST, TextureSwizzle::CHANNEL_LAST}};
static const TextureSwizzle L = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_LAST,
TextureSwizzle::CHANNEL_LAST, TextureSwizzle::CHANNEL_LAST}};
static const TextureSwizzle LA = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3,
TextureSwizzle::CHANNEL_LAST, TextureSwizzle::CHANNEL_LAST}};
static const TextureSwizzle RG = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_1,
TextureSwizzle::CHANNEL_LAST, TextureSwizzle::CHANNEL_LAST}};
static const TextureSwizzle RA = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3,
TextureSwizzle::CHANNEL_LAST, TextureSwizzle::CHANNEL_LAST}};
static const TextureSwizzle RGB = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_2,
TextureSwizzle::CHANNEL_LAST}};
static const TextureSwizzle RGBA = {
{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_2, TextureSwizzle::CHANNEL_3}};
static const TextureSwizzle BGR = {{TextureSwizzle::CHANNEL_2, TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_0,
TextureSwizzle::CHANNEL_LAST}};
static const TextureSwizzle BGRA = {
{TextureSwizzle::CHANNEL_2, TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3}};
static const TextureSwizzle ARGB = {
{TextureSwizzle::CHANNEL_3, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_2}};
static const TextureSwizzle ABGR = {
{TextureSwizzle::CHANNEL_3, TextureSwizzle::CHANNEL_2, TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_0}};
static const TextureSwizzle D = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_LAST,
TextureSwizzle::CHANNEL_LAST, TextureSwizzle::CHANNEL_LAST}};
static const TextureSwizzle S = {{TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_LAST,
TextureSwizzle::CHANNEL_LAST, TextureSwizzle::CHANNEL_LAST}};
switch (order)
{
case TextureFormat::R:
return R;
case TextureFormat::A:
return A;
case TextureFormat::I:
return I;
case TextureFormat::L:
return L;
case TextureFormat::LA:
return LA;
case TextureFormat::RG:
return RG;
case TextureFormat::RA:
return RA;
case TextureFormat::RGB:
return RGB;
case TextureFormat::RGBA:
return RGBA;
case TextureFormat::ARGB:
return ARGB;
case TextureFormat::ABGR:
return ABGR;
case TextureFormat::BGR:
return BGR;
case TextureFormat::BGRA:
return BGRA;
case TextureFormat::sR:
return R;
case TextureFormat::sRG:
return RG;
case TextureFormat::sRGB:
return RGB;
case TextureFormat::sRGBA:
return RGBA;
case TextureFormat::sBGR:
return BGR;
case TextureFormat::sBGRA:
return BGRA;
case TextureFormat::D:
return D;
case TextureFormat::S:
return S;
case TextureFormat::DS:
DE_ASSERT(false); // combined formats cannot be written to
return INV;
default:
DE_ASSERT(false);
return INV;
}
}
IVec3 calculatePackedPitch(const TextureFormat &format, const IVec3 &size)
{
const int pixelSize = format.getPixelSize();
const int rowPitch = pixelSize * size.x();
const int slicePitch = rowPitch * size.y();
return IVec3(pixelSize, rowPitch, slicePitch);
}
ConstPixelBufferAccess::ConstPixelBufferAccess(void) : m_size(0), m_pitch(0), m_divider(1, 1, 1), m_data(DE_NULL)
{
}
ConstPixelBufferAccess::ConstPixelBufferAccess(const TextureFormat &format, int width, int height, int depth,
const void *data)
: m_format(format)
, m_size(width, height, depth)
, m_pitch(calculatePackedPitch(m_format, m_size))
, m_divider(1, 1, 1)
, m_data((void *)data)
{
DE_ASSERT(isValid(format));
}
ConstPixelBufferAccess::ConstPixelBufferAccess(const TextureFormat &format, const IVec3 &size, const void *data)
: m_format(format)
, m_size(size)
, m_pitch(calculatePackedPitch(m_format, m_size))
, m_divider(1, 1, 1)
, m_data((void *)data)
{
DE_ASSERT(isValid(format));
}
ConstPixelBufferAccess::ConstPixelBufferAccess(const TextureFormat &format, int width, int height, int depth,
int rowPitch, int slicePitch, const void *data)
: m_format(format)
, m_size(width, height, depth)
, m_pitch(format.getPixelSize(), rowPitch, slicePitch)
, m_divider(1, 1, 1)
, m_data((void *)data)
{
DE_ASSERT(isValid(format));
}
ConstPixelBufferAccess::ConstPixelBufferAccess(const TextureFormat &format, const IVec3 &size, const IVec3 &pitch,
const void *data)
: m_format(format)
, m_size(size)
, m_pitch(pitch)
, m_divider(1, 1, 1)
, m_data((void *)data)
{
DE_ASSERT(isValid(format));
DE_ASSERT(m_format.getPixelSize() <= m_pitch.x());
}
ConstPixelBufferAccess::ConstPixelBufferAccess(const TextureFormat &format, const IVec3 &size, const IVec3 &pitch,
const IVec3 &block, const void *data)
: m_format(format)
, m_size(size)
, m_pitch(pitch)
, m_divider(block)
, m_data((void *)data)
{
DE_ASSERT(isValid(format));
DE_ASSERT(m_format.getPixelSize() <= m_pitch.x());
}
ConstPixelBufferAccess::ConstPixelBufferAccess(const TextureLevel &level)
: m_format(level.getFormat())
, m_size(level.getSize())
, m_pitch(calculatePackedPitch(m_format, m_size))
, m_divider(1, 1, 1)
, m_data((void *)level.getPtr())
{
}
PixelBufferAccess::PixelBufferAccess(const TextureFormat &format, int width, int height, int depth, void *data)
: ConstPixelBufferAccess(format, width, height, depth, data)
{
}
PixelBufferAccess::PixelBufferAccess(const TextureFormat &format, const IVec3 &size, void *data)
: ConstPixelBufferAccess(format, size, data)
{
}
PixelBufferAccess::PixelBufferAccess(const TextureFormat &format, int width, int height, int depth, int rowPitch,
int slicePitch, void *data)
: ConstPixelBufferAccess(format, width, height, depth, rowPitch, slicePitch, data)
{
}
PixelBufferAccess::PixelBufferAccess(const TextureFormat &format, const IVec3 &size, const IVec3 &pitch, void *data)
: ConstPixelBufferAccess(format, size, pitch, data)
{
}
PixelBufferAccess::PixelBufferAccess(const TextureFormat &format, const IVec3 &size, const IVec3 &pitch,
const IVec3 &block, void *data)
: ConstPixelBufferAccess(format, size, pitch, block, data)
{
}
PixelBufferAccess::PixelBufferAccess(TextureLevel &level) : ConstPixelBufferAccess(level)
{
}
//! Swizzle generally based on channel order.
template <typename T>
Vector<T, 4> swizzleGe(const Vector<T, 4> &v, TextureFormat::ChannelOrder src, TextureFormat::ChannelOrder dst)
{
if (src == dst)
return v;
else
{
if ((src == TextureFormat::RGBA && dst == TextureFormat::ARGB) ||
(src == TextureFormat::BGRA && dst == TextureFormat::ABGR))
return v.swizzle(3, 0, 1, 2);
if ((src == TextureFormat::ARGB && dst == TextureFormat::RGBA) ||
(src == TextureFormat::ABGR && dst == TextureFormat::BGRA))
return v.swizzle(1, 2, 3, 0);
if ((src == TextureFormat::BGRA && dst == TextureFormat::ARGB) ||
(src == TextureFormat::ABGR && dst == TextureFormat::RGBA) ||
(src == TextureFormat::RGBA && dst == TextureFormat::ABGR) ||
(src == TextureFormat::ARGB && dst == TextureFormat::BGRA))
return v.swizzle(3, 2, 1, 0);
if ((src == TextureFormat::RGB && dst == TextureFormat::BGR) ||
(src == TextureFormat::BGR && dst == TextureFormat::RGB) ||
(src == TextureFormat::RGBA && dst == TextureFormat::BGRA) ||
(src == TextureFormat::BGRA && dst == TextureFormat::RGBA))
return v.swizzle(2, 1, 0, 3);
DE_ASSERT(false);
return v;
}
}
Vec4 ConstPixelBufferAccess::getPixel(int x, int y, int z) const
{
DE_ASSERT(de::inBounds(x, 0, m_size.x()));
DE_ASSERT(de::inBounds(y, 0, m_size.y()));
DE_ASSERT(de::inBounds(z, 0, m_size.z()));
DE_ASSERT(!isCombinedDepthStencilType(m_format.type)); // combined types cannot be accessed directly
DE_ASSERT(m_format.order != TextureFormat::DS); // combined formats cannot be accessed directly
const uint8_t *pixelPtr = (const uint8_t *)getPixelPtr(x, y, z);
// Optimized fomats.
if (m_format.type == TextureFormat::UNORM_INT8)
{
if (m_format.order == TextureFormat::RGBA || m_format.order == TextureFormat::sRGBA)
return readRGBA8888Float(pixelPtr);
else if (m_format.order == TextureFormat::RGB || m_format.order == TextureFormat::sRGB)
return readRGB888Float(pixelPtr);
}
#define UI8(OFFS, COUNT) ((*((const uint8_t *)pixelPtr) >> (OFFS)) & ((1 << (COUNT)) - 1))
#define UI16(OFFS, COUNT) ((*((const uint16_t *)pixelPtr) >> (OFFS)) & ((1 << (COUNT)) - 1))
#define UI32(OFFS, COUNT) ((*((const uint32_t *)pixelPtr) >> (OFFS)) & ((1 << (COUNT)) - 1))
#define SI32(OFFS, COUNT) signExtend(UI32(OFFS, COUNT), (COUNT))
#define UN8(OFFS, COUNT) channelToUnormFloat(UI8(OFFS, COUNT), (COUNT))
#define UN16(OFFS, COUNT) channelToUnormFloat(UI16(OFFS, COUNT), (COUNT))
#define UN32(OFFS, COUNT) channelToUnormFloat(UI32(OFFS, COUNT), (COUNT))
#define SN32(OFFS, COUNT) channelToSnormFloat(UI32(OFFS, COUNT), (COUNT))
// Packed formats.
switch (m_format.type)
{
case TextureFormat::UNORM_BYTE_44:
return Vec4(UN8(4, 4), UN8(0, 4), 0.0f, 1.0f);
case TextureFormat::UNSIGNED_BYTE_44:
return UVec4(UI8(4, 4), UI8(0, 4), 0u, 1u).cast<float>();
case TextureFormat::UNORM_SHORT_565:
return swizzleGe(Vec4(UN16(11, 5), UN16(5, 6), UN16(0, 5), 1.0f), m_format.order, TextureFormat::RGB);
case TextureFormat::UNSIGNED_SHORT_565:
return swizzleGe(UVec4(UI16(11, 5), UI16(5, 6), UI16(0, 5), 1u), m_format.order, TextureFormat::RGB)
.cast<float>();
case TextureFormat::UNORM_SHORT_555:
return swizzleGe(Vec4(UN16(10, 5), UN16(5, 5), UN16(0, 5), 1.0f), m_format.order, TextureFormat::RGB);
case TextureFormat::UNORM_SHORT_4444:
return swizzleGe(Vec4(UN16(12, 4), UN16(8, 4), UN16(4, 4), UN16(0, 4)), m_format.order, TextureFormat::RGBA);
case TextureFormat::UNSIGNED_SHORT_4444:
return swizzleGe(UVec4(UI16(12, 4), UI16(8, 4), UI16(4, 4), UI16(0, 4)), m_format.order, TextureFormat::RGBA)
.cast<float>();
case TextureFormat::UNORM_SHORT_5551:
return swizzleGe(Vec4(UN16(11, 5), UN16(6, 5), UN16(1, 5), UN16(0, 1)), m_format.order, TextureFormat::RGBA);
case TextureFormat::UNSIGNED_SHORT_5551:
return swizzleGe(UVec4(UI16(11, 5), UI16(6, 5), UI16(1, 5), UI16(0, 1)), m_format.order, TextureFormat::RGBA)
.cast<float>();
case TextureFormat::UNORM_SHORT_1555:
return swizzleGe(Vec4(UN16(15, 1), UN16(10, 5), UN16(5, 5), UN16(0, 5)), m_format.order, TextureFormat::RGBA);
case TextureFormat::UNORM_INT_101010:
return Vec4(UN32(22, 10), UN32(12, 10), UN32(2, 10), 1.0f);
case TextureFormat::UNORM_INT_1010102_REV:
return swizzleGe(Vec4(UN32(0, 10), UN32(10, 10), UN32(20, 10), UN32(30, 2)), m_format.order,
TextureFormat::RGBA);
case TextureFormat::SNORM_INT_1010102_REV:
return swizzleGe(Vec4(SN32(0, 10), SN32(10, 10), SN32(20, 10), SN32(30, 2)), m_format.order,
TextureFormat::RGBA);
case TextureFormat::USCALED_INT_1010102_REV:
case TextureFormat::UNSIGNED_INT_1010102_REV:
return swizzleGe(UVec4(UI32(0, 10), UI32(10, 10), UI32(20, 10), UI32(30, 2)), m_format.order,
TextureFormat::RGBA)
.cast<float>();
case TextureFormat::SSCALED_INT_1010102_REV:
case TextureFormat::SIGNED_INT_1010102_REV:
return swizzleGe(UVec4(SI32(0, 10), SI32(10, 10), SI32(20, 10), SI32(30, 2)), m_format.order,
TextureFormat::RGBA)
.cast<float>();
case TextureFormat::UNSIGNED_INT_999_E5_REV:
return unpackRGB999E5(*((const uint32_t *)pixelPtr));
case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV:
return Vec4(Float11(UI32(0, 11)).asFloat(), Float11(UI32(11, 11)).asFloat(), Float10(UI32(22, 10)).asFloat(),
1.0f);
default:
break;
}
#undef UN8
#undef UN16
#undef UN32
#undef SN32
#undef SI32
#undef UI8
#undef UI16
#undef UI32
// Generic path.
Vec4 result;
const TextureSwizzle::Channel *channelMap = getChannelReadSwizzle(m_format.order).components;
int channelSize = getChannelSize(m_format.type);
for (int c = 0; c < 4; c++)
{
switch (channelMap[c])
{
case TextureSwizzle::CHANNEL_0:
case TextureSwizzle::CHANNEL_1:
case TextureSwizzle::CHANNEL_2:
case TextureSwizzle::CHANNEL_3:
result[c] = channelToFloat(pixelPtr + channelSize * ((int)channelMap[c]), m_format.type);
break;
case TextureSwizzle::CHANNEL_ZERO:
result[c] = 0.0f;
break;
case TextureSwizzle::CHANNEL_ONE:
result[c] = 1.0f;
break;
default:
DE_ASSERT(false);
}
}
return result;
}
template <typename T>
static tcu::Vector<T, 4> getPixelIntGeneric(const uint8_t *pixelPtr, const tcu::TextureFormat &format)
{
tcu::Vector<T, 4> result;
// Generic path.
const TextureSwizzle::Channel *channelMap = getChannelReadSwizzle(format.order).components;
int channelSize = getChannelSize(format.type);
for (int c = 0; c < 4; c++)
{
switch (channelMap[c])
{
case TextureSwizzle::CHANNEL_0:
case TextureSwizzle::CHANNEL_1:
case TextureSwizzle::CHANNEL_2:
case TextureSwizzle::CHANNEL_3:
result[c] = channelToIntType<T>(pixelPtr + channelSize * ((int)channelMap[c]), format.type);
break;
case TextureSwizzle::CHANNEL_ZERO:
result[c] = 0;
break;
case TextureSwizzle::CHANNEL_ONE:
result[c] = 1;
break;
default:
DE_ASSERT(false);
}
}
return result;
}
static U64Vec4 getPixelAsBitsUint64(const uint8_t *pixelPtr, const tcu::TextureFormat &format)
{
U64Vec4 result;
// Generic path.
const TextureSwizzle::Channel *channelMap = getChannelReadSwizzle(format.order).components;
int channelSize = getChannelSize(format.type);
for (int c = 0; c < 4; c++)
{
switch (channelMap[c])
{
case TextureSwizzle::CHANNEL_0:
case TextureSwizzle::CHANNEL_1:
case TextureSwizzle::CHANNEL_2:
case TextureSwizzle::CHANNEL_3:
result[c] = retrieveChannelBitsAsUint64(pixelPtr + channelSize * ((int)channelMap[c]), format.type);
break;
case TextureSwizzle::CHANNEL_ZERO:
result[c] = 0;
break;
case TextureSwizzle::CHANNEL_ONE:
result[c] = 1;
break;
default:
DE_ASSERT(false);
}
}
return result;
}
IVec4 ConstPixelBufferAccess::getPixelInt(int x, int y, int z) const
{
DE_ASSERT(de::inBounds(x, 0, m_size.x()));
DE_ASSERT(de::inBounds(y, 0, m_size.y()));
DE_ASSERT(de::inBounds(z, 0, m_size.z()));
DE_ASSERT(!isCombinedDepthStencilType(m_format.type)); // combined types cannot be accessed directly
DE_ASSERT(m_format.order != TextureFormat::DS); // combined formats cannot be accessed directly
const uint8_t *const pixelPtr = (const uint8_t *)getPixelPtr(x, y, z);
// Optimized fomats.
if (m_format.type == TextureFormat::UNORM_INT8)
{
if (m_format.order == TextureFormat::RGBA || m_format.order == TextureFormat::sRGBA)
return readRGBA8888Int(pixelPtr);
else if (m_format.order == TextureFormat::RGB || m_format.order == TextureFormat::sRGB)
return readRGB888Int(pixelPtr);
}
#define U8(OFFS, COUNT) ((*((const uint8_t *)pixelPtr) >> (OFFS)) & ((1 << (COUNT)) - 1))
#define U16(OFFS, COUNT) ((*((const uint16_t *)pixelPtr) >> (OFFS)) & ((1 << (COUNT)) - 1))
#define U32(OFFS, COUNT) ((*((const uint32_t *)pixelPtr) >> (OFFS)) & ((1 << (COUNT)) - 1))
#define S32(OFFS, COUNT) signExtend(U32(OFFS, COUNT), (COUNT))
switch (m_format.type)
{
case TextureFormat::UNSIGNED_BYTE_44: // Fall-through
case TextureFormat::UNORM_BYTE_44:
return UVec4(U8(4, 4), U8(0, 4), 0u, 1u).cast<int>();
case TextureFormat::UNSIGNED_SHORT_565: // Fall-through
case TextureFormat::UNORM_SHORT_565:
return swizzleGe(UVec4(U16(11, 5), U16(5, 6), U16(0, 5), 1).cast<int>(), m_format.order, TextureFormat::RGB);
case TextureFormat::UNORM_SHORT_555:
return swizzleGe(UVec4(U16(10, 5), U16(5, 5), U16(0, 5), 1).cast<int>(), m_format.order, TextureFormat::RGB);
case TextureFormat::UNSIGNED_SHORT_4444: // Fall-through
case TextureFormat::UNORM_SHORT_4444:
return swizzleGe(UVec4(U16(12, 4), U16(8, 4), U16(4, 4), U16(0, 4)).cast<int>(), m_format.order,
TextureFormat::RGBA);
case TextureFormat::UNSIGNED_SHORT_5551: // Fall-through
case TextureFormat::UNORM_SHORT_5551:
return swizzleGe(UVec4(U16(11, 5), U16(6, 5), U16(1, 5), U16(0, 1)).cast<int>(), m_format.order,
TextureFormat::RGBA);
case TextureFormat::UNORM_SHORT_1555:
return swizzleGe(UVec4(U16(15, 1), U16(10, 5), U16(5, 5), U16(0, 5)).cast<int>(), m_format.order,
TextureFormat::RGBA);
case TextureFormat::UNORM_INT_101010:
return UVec4(U32(22, 10), U32(12, 10), U32(2, 10), 1).cast<int>();
case TextureFormat::UNORM_INT_1010102_REV: // Fall-through
case TextureFormat::USCALED_INT_1010102_REV: // Fall-through
case TextureFormat::UNSIGNED_INT_1010102_REV:
return swizzleGe(UVec4(U32(0, 10), U32(10, 10), U32(20, 10), U32(30, 2)), m_format.order, TextureFormat::RGBA)
.cast<int>();
case TextureFormat::SNORM_INT_1010102_REV: // Fall-through
case TextureFormat::SSCALED_INT_1010102_REV: // Fall-through
case TextureFormat::SIGNED_INT_1010102_REV:
return swizzleGe(IVec4(S32(0, 10), S32(10, 10), S32(20, 10), S32(30, 2)), m_format.order, TextureFormat::RGBA);
default:
break; // To generic path.
}
#undef U8
#undef U16
#undef U32
#undef S32
// Generic path.
return getPixelIntGeneric<int>(pixelPtr, m_format);
}
I64Vec4 ConstPixelBufferAccess::getPixelInt64(int x, int y, int z) const
{
// Rely on getPixelInt() for some formats.
if (m_format.type == TextureFormat::UNORM_INT8 &&
(m_format.order == TextureFormat::RGBA || m_format.order == TextureFormat::sRGBA ||
m_format.order == TextureFormat::RGB || m_format.order == TextureFormat::sRGB))
{
return getPixelInt(x, y, z).cast<int64_t>();
}
switch (m_format.type)
{
case TextureFormat::UNSIGNED_BYTE_44:
case TextureFormat::UNORM_BYTE_44:
case TextureFormat::UNSIGNED_SHORT_565:
case TextureFormat::UNORM_SHORT_565:
case TextureFormat::UNORM_SHORT_555:
case TextureFormat::UNSIGNED_SHORT_4444:
case TextureFormat::UNORM_SHORT_4444:
case TextureFormat::UNSIGNED_SHORT_5551:
case TextureFormat::UNORM_SHORT_5551:
case TextureFormat::UNORM_INT_101010:
case TextureFormat::UNORM_INT_1010102_REV:
case TextureFormat::USCALED_INT_1010102_REV:
case TextureFormat::UNSIGNED_INT_1010102_REV:
case TextureFormat::SNORM_INT_1010102_REV:
case TextureFormat::SSCALED_INT_1010102_REV:
case TextureFormat::SIGNED_INT_1010102_REV:
case TextureFormat::UNORM_SHORT_1555:
return getPixelInt(x, y, z).cast<int64_t>();
default:
break; // To generic path.
}
// Generic path.
auto pixelPtr = reinterpret_cast<const uint8_t *>(getPixelPtr(x, y, z));
return getPixelIntGeneric<int64_t>(pixelPtr, m_format);
}
U64Vec4 ConstPixelBufferAccess::getPixelBitsAsUint64(int x, int y, int z) const
{
DE_ASSERT(de::inBounds(x, 0, m_size.x()));
DE_ASSERT(de::inBounds(y, 0, m_size.y()));
DE_ASSERT(de::inBounds(z, 0, m_size.z()));
DE_ASSERT(!isCombinedDepthStencilType(m_format.type)); // combined types cannot be accessed directly
DE_ASSERT(m_format.order != TextureFormat::DS); // combined formats cannot be accessed directly
const uint8_t *const pixelPtr = (const uint8_t *)getPixelPtr(x, y, z);
if (m_format.type == TextureFormat::UNORM_INT8)
{
if (m_format.order == TextureFormat::RGBA || m_format.order == TextureFormat::sRGBA)
return U64Vec4(pixelPtr[0], pixelPtr[1], pixelPtr[2], pixelPtr[3]);
else if (m_format.order == TextureFormat::RGB || m_format.order == TextureFormat::sRGB)
return U64Vec4(pixelPtr[0], pixelPtr[1], pixelPtr[2], 1);
}
#define U8(OFFS, COUNT) ((*((const uint8_t *)pixelPtr) >> (OFFS)) & ((1 << (COUNT)) - 1))
#define U16(OFFS, COUNT) ((*((const uint16_t *)pixelPtr) >> (OFFS)) & ((1 << (COUNT)) - 1))
#define U32(OFFS, COUNT) ((*((const uint32_t *)pixelPtr) >> (OFFS)) & ((1 << (COUNT)) - 1))
switch (m_format.type)
{
case TextureFormat::UNSIGNED_BYTE_44: // Fall-through
case TextureFormat::UNORM_BYTE_44:
return U64Vec4(U8(4, 4), U8(0, 4), 0u, 1u);
case TextureFormat::UNSIGNED_SHORT_565: // Fall-through
case TextureFormat::UNORM_SHORT_565:
return swizzleGe(U64Vec4(U16(11, 5), U16(5, 6), U16(0, 5), 1), m_format.order, TextureFormat::RGB);
case TextureFormat::UNORM_SHORT_555:
return swizzleGe(U64Vec4(U16(10, 5), U16(5, 5), U16(0, 5), 1), m_format.order, TextureFormat::RGB);
case TextureFormat::UNSIGNED_SHORT_4444: // Fall-through
case TextureFormat::UNORM_SHORT_4444:
return swizzleGe(U64Vec4(U16(12, 4), U16(8, 4), U16(4, 4), U16(0, 4)), m_format.order, TextureFormat::RGBA);
case TextureFormat::UNSIGNED_SHORT_5551: // Fall-through
case TextureFormat::UNORM_SHORT_5551:
return swizzleGe(U64Vec4(U16(11, 5), U16(6, 5), U16(1, 5), U16(0, 1)), m_format.order, TextureFormat::RGBA);
case TextureFormat::UNORM_INT_101010:
return U64Vec4(U32(22, 10), U32(12, 10), U32(2, 10), 1);
case TextureFormat::UNORM_INT_1010102_REV: // Fall-through
case TextureFormat::USCALED_INT_1010102_REV: // Fall-through
case TextureFormat::UNSIGNED_INT_1010102_REV:
return swizzleGe(U64Vec4(U32(0, 10), U32(10, 10), U32(20, 10), U32(30, 2)), m_format.order,
TextureFormat::RGBA);
case TextureFormat::SNORM_INT_1010102_REV: // Fall-through
case TextureFormat::SSCALED_INT_1010102_REV: // Fall-through
case TextureFormat::SIGNED_INT_1010102_REV:
return swizzleGe(U64Vec4(U32(0, 10), U32(10, 10), U32(20, 10), U32(30, 2)), m_format.order,
TextureFormat::RGBA);
case TextureFormat::UNORM_SHORT_1555:
return swizzleGe(U64Vec4(U16(15, 1), U16(10, 5), U16(5, 5), U16(0, 5)), m_format.order, TextureFormat::RGBA);
default:
break; // To generic path.
}
#undef U8
#undef U16
#undef U32
// Generic path.
return getPixelAsBitsUint64(pixelPtr, m_format);
}
template <>
Vec4 ConstPixelBufferAccess::getPixelT(int x, int y, int z) const
{
return getPixel(x, y, z);
}
template <>
IVec4 ConstPixelBufferAccess::getPixelT(int x, int y, int z) const
{
return getPixelInt(x, y, z);
}
template <>
UVec4 ConstPixelBufferAccess::getPixelT(int x, int y, int z) const
{
return getPixelUint(x, y, z);
}
template <>
I64Vec4 ConstPixelBufferAccess::getPixelT(int x, int y, int z) const
{
return getPixelInt64(x, y, z);
}
template <>
U64Vec4 ConstPixelBufferAccess::getPixelT(int x, int y, int z) const
{
return getPixelUint64(x, y, z);
}
float ConstPixelBufferAccess::getPixDepth(int x, int y, int z) const
{
DE_ASSERT(de::inBounds(x, 0, getWidth()));
DE_ASSERT(de::inBounds(y, 0, getHeight()));
DE_ASSERT(de::inBounds(z, 0, getDepth()));
const uint8_t *const pixelPtr = (const uint8_t *)getPixelPtr(x, y, z);
switch (m_format.type)
{
case TextureFormat::UNSIGNED_INT_16_8_8:
DE_ASSERT(m_format.order == TextureFormat::DS);
return (float)readUint32High16(pixelPtr) / 65535.0f;
case TextureFormat::UNSIGNED_INT_24_8:
DE_ASSERT(m_format.order == TextureFormat::D || m_format.order == TextureFormat::DS);
return (float)readUint32High24(pixelPtr) / 16777215.0f;
case TextureFormat::UNSIGNED_INT_24_8_REV:
DE_ASSERT(m_format.order == TextureFormat::D || m_format.order == TextureFormat::DS);
return (float)readUint32Low24(pixelPtr) / 16777215.0f;
case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV:
DE_ASSERT(m_format.order == TextureFormat::DS);
return *((const float *)pixelPtr);
default:
DE_ASSERT(m_format.order == TextureFormat::D); // no other combined depth stencil types
return channelToFloat(pixelPtr, m_format.type);
}
}
int ConstPixelBufferAccess::getPixStencil(int x, int y, int z) const
{
DE_ASSERT(de::inBounds(x, 0, getWidth()));
DE_ASSERT(de::inBounds(y, 0, getHeight()));
DE_ASSERT(de::inBounds(z, 0, getDepth()));
const uint8_t *const pixelPtr = (const uint8_t *)getPixelPtr(x, y, z);
switch (m_format.type)
{
case TextureFormat::UNSIGNED_INT_24_8_REV:
DE_ASSERT(m_format.order == TextureFormat::DS);
return (int)readUint32High8(pixelPtr);
case TextureFormat::UNSIGNED_INT_16_8_8:
case TextureFormat::UNSIGNED_INT_24_8:
DE_ASSERT(m_format.order == TextureFormat::DS);
return (int)readUint32Low8(pixelPtr);
case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV:
DE_ASSERT(m_format.order == TextureFormat::DS);
return (int)readUint32Low8(pixelPtr + 4);
default:
{
DE_ASSERT(m_format.order == TextureFormat::S); // no other combined depth stencil types
return channelToInt(pixelPtr, m_format.type);
}
}
}
void PixelBufferAccess::setPixel(const Vec4 &color, int x, int y, int z) const
{
DE_ASSERT(de::inBounds(x, 0, getWidth()));
DE_ASSERT(de::inBounds(y, 0, getHeight()));
DE_ASSERT(de::inBounds(z, 0, getDepth()));
DE_ASSERT(!isCombinedDepthStencilType(m_format.type)); // combined types cannot be accessed directly
DE_ASSERT(m_format.order != TextureFormat::DS); // combined formats cannot be accessed directly
uint8_t *const pixelPtr = (uint8_t *)getPixelPtr(x, y, z);
// Optimized fomats.
if (m_format.type == TextureFormat::UNORM_INT8)
{
if (m_format.order == TextureFormat::RGBA || m_format.order == TextureFormat::sRGBA)
{
writeRGBA8888Float(pixelPtr, color);
return;
}
else if (m_format.order == TextureFormat::RGB || m_format.order == TextureFormat::sRGB)
{
writeRGB888Float(pixelPtr, color);
return;
}
}
#define PN(VAL, OFFS, BITS) (unormFloatToChannel((VAL), (BITS)) << (OFFS))
#define PS(VAL, OFFS, BITS) (snormFloatToChannel((VAL), (BITS)) << (OFFS))
#define PU(VAL, OFFS, BITS) (uintToChannel((VAL), (BITS)) << (OFFS))
#define PI(VAL, OFFS, BITS) (intToChannel((VAL), (BITS)) << (OFFS))
switch (m_format.type)
{
case TextureFormat::UNORM_BYTE_44:
*((uint8_t *)pixelPtr) = (uint8_t)(PN(color[0], 4, 4) | PN(color[1], 0, 4));
break;
case TextureFormat::UNSIGNED_BYTE_44:
*((uint8_t *)pixelPtr) = (uint8_t)(PU((uint32_t)color[0], 4, 4) | PU((uint32_t)color[1], 0, 4));
break;
case TextureFormat::UNORM_INT_101010:
*((uint32_t *)pixelPtr) = PN(color[0], 22, 10) | PN(color[1], 12, 10) | PN(color[2], 2, 10);
break;
case TextureFormat::UNORM_SHORT_565:
{
const Vec4 swizzled = swizzleGe(color, TextureFormat::RGB, m_format.order);
*((uint16_t *)pixelPtr) = (uint16_t)(PN(swizzled[0], 11, 5) | PN(swizzled[1], 5, 6) | PN(swizzled[2], 0, 5));
break;
}
case TextureFormat::UNSIGNED_SHORT_565:
{
const UVec4 swizzled = swizzleGe(color.cast<uint32_t>(), TextureFormat::RGB, m_format.order);
*((uint16_t *)pixelPtr) = (uint16_t)(PU(swizzled[0], 11, 5) | PU(swizzled[1], 5, 6) | PU(swizzled[2], 0, 5));
break;
}
case TextureFormat::UNORM_SHORT_555:
{
const Vec4 swizzled = swizzleGe(color, TextureFormat::RGB, m_format.order);
*((uint16_t *)pixelPtr) = (uint16_t)(PN(swizzled[0], 10, 5) | PN(swizzled[1], 5, 5) | PN(swizzled[2], 0, 5));
break;
}
case TextureFormat::UNORM_SHORT_4444:
{
const Vec4 swizzled = swizzleGe(color, TextureFormat::RGBA, m_format.order);
*((uint16_t *)pixelPtr) =
(uint16_t)(PN(swizzled[0], 12, 4) | PN(swizzled[1], 8, 4) | PN(swizzled[2], 4, 4) | PN(swizzled[3], 0, 4));
break;
}
case TextureFormat::UNSIGNED_SHORT_4444:
{
const UVec4 swizzled = swizzleGe(color.cast<uint32_t>(), TextureFormat::RGBA, m_format.order);
*((uint16_t *)pixelPtr) =
(uint16_t)(PU(swizzled[0], 12, 4) | PU(swizzled[1], 8, 4) | PU(swizzled[2], 4, 4) | PU(swizzled[3], 0, 4));
break;
}
case TextureFormat::UNORM_SHORT_5551:
{
const Vec4 swizzled = swizzleGe(color, TextureFormat::RGBA, m_format.order);
*((uint16_t *)pixelPtr) =
(uint16_t)(PN(swizzled[0], 11, 5) | PN(swizzled[1], 6, 5) | PN(swizzled[2], 1, 5) | PN(swizzled[3], 0, 1));
break;
}
case TextureFormat::UNORM_SHORT_1555:
{
const Vec4 swizzled = swizzleGe(color, TextureFormat::RGBA, m_format.order);
*((uint16_t *)pixelPtr) =
(uint16_t)(PN(swizzled[0], 15, 1) | PN(swizzled[1], 10, 5) | PN(swizzled[2], 5, 5) | PN(swizzled[3], 0, 5));
break;
}
case TextureFormat::UNSIGNED_SHORT_5551:
{
const UVec4 swizzled = swizzleGe(color.cast<uint32_t>(), TextureFormat::RGBA, m_format.order);
*((uint16_t *)pixelPtr) =
(uint16_t)(PU(swizzled[0], 11, 5) | PU(swizzled[1], 6, 5) | PU(swizzled[2], 1, 5) | PU(swizzled[3], 0, 1));
break;
}
case TextureFormat::UNORM_INT_1010102_REV:
{
const Vec4 u = swizzleGe(color, TextureFormat::RGBA, m_format.order);
*((uint32_t *)pixelPtr) = PN(u[0], 0, 10) | PN(u[1], 10, 10) | PN(u[2], 20, 10) | PN(u[3], 30, 2);
break;
}
case TextureFormat::SNORM_INT_1010102_REV:
{
const Vec4 u = swizzleGe(color, TextureFormat::RGBA, m_format.order);
*((uint32_t *)pixelPtr) = PS(u[0], 0, 10) | PS(u[1], 10, 10) | PS(u[2], 20, 10) | PS(u[3], 30, 2);
break;
}
case TextureFormat::UNSIGNED_INT_1010102_REV:
case TextureFormat::USCALED_INT_1010102_REV:
{
const UVec4 u = swizzleGe(color.cast<uint32_t>(), TextureFormat::RGBA, m_format.order);
*((uint32_t *)pixelPtr) = PU(u[0], 0, 10) | PU(u[1], 10, 10) | PU(u[2], 20, 10) | PU(u[3], 30, 2);
break;
}
case TextureFormat::SIGNED_INT_1010102_REV:
case TextureFormat::SSCALED_INT_1010102_REV:
{
const IVec4 u = swizzleGe(color.cast<int32_t>(), TextureFormat::RGBA, m_format.order);
*((uint32_t *)pixelPtr) = PI(u[0], 0, 10) | PI(u[1], 10, 10) | PI(u[2], 20, 10) | PI(u[3], 30, 2);
break;
}
case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV:
*((uint32_t *)pixelPtr) =
Float11(color[0]).bits() | (Float11(color[1]).bits() << 11) | (Float10(color[2]).bits() << 22);
break;
case TextureFormat::UNSIGNED_INT_999_E5_REV:
*((uint32_t *)pixelPtr) = packRGB999E5(color);
break;
default:
{
// Generic path.
int numChannels = getNumUsedChannels(m_format.order);
const TextureSwizzle::Channel *map = getChannelWriteSwizzle(m_format.order).components;
int channelSize = getChannelSize(m_format.type);
for (int c = 0; c < numChannels; c++)
{
DE_ASSERT(deInRange32(map[c], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3));
floatToChannel(pixelPtr + channelSize * c, color[map[c]], m_format.type);
}
break;
}
}
#undef PN
#undef PS
#undef PU
#undef PI
}
void PixelBufferAccess::setPixel(const IVec4 &color, int x, int y, int z) const
{
DE_ASSERT(de::inBounds(x, 0, getWidth()));
DE_ASSERT(de::inBounds(y, 0, getHeight()));
DE_ASSERT(de::inBounds(z, 0, getDepth()));
DE_ASSERT(!isCombinedDepthStencilType(m_format.type)); // combined types cannot be accessed directly
DE_ASSERT(m_format.order != TextureFormat::DS); // combined formats cannot be accessed directly
uint8_t *const pixelPtr = (uint8_t *)getPixelPtr(x, y, z);
// Optimized fomats.
if (m_format.type == TextureFormat::UNORM_INT8)
{
if (m_format.order == TextureFormat::RGBA || m_format.order == TextureFormat::sRGBA)
{
writeRGBA8888Int(pixelPtr, color);
return;
}
else if (m_format.order == TextureFormat::RGB || m_format.order == TextureFormat::sRGB)
{
writeRGB888Int(pixelPtr, color);
return;
}
}
#define PU(VAL, OFFS, BITS) (uintToChannel((uint32_t)(VAL), (BITS)) << (OFFS))
#define PI(VAL, OFFS, BITS) (intToChannel((uint32_t)(VAL), (BITS)) << (OFFS))
switch (m_format.type)
{
case TextureFormat::UNSIGNED_BYTE_44: // Fall-through
case TextureFormat::UNORM_BYTE_44:
*((uint8_t *)pixelPtr) = (uint8_t)(PU(color[0], 4, 4) | PU(color[1], 0, 4));
break;
case TextureFormat::UNORM_INT_101010:
*((uint32_t *)pixelPtr) = PU(color[0], 22, 10) | PU(color[1], 12, 10) | PU(color[2], 2, 10);
break;
case TextureFormat::UNORM_SHORT_565:
case TextureFormat::UNSIGNED_SHORT_565:
{
const IVec4 swizzled = swizzleGe(color, TextureFormat::RGB, m_format.order);
*((uint16_t *)pixelPtr) = (uint16_t)(PU(swizzled[0], 11, 5) | PU(swizzled[1], 5, 6) | PU(swizzled[2], 0, 5));
break;
}
case TextureFormat::UNORM_SHORT_555:
{
const IVec4 swizzled = swizzleGe(color, TextureFormat::RGB, m_format.order);
*((uint16_t *)pixelPtr) = (uint16_t)(PU(swizzled[0], 10, 5) | PU(swizzled[1], 5, 5) | PU(swizzled[2], 0, 5));
break;
}
case TextureFormat::UNORM_SHORT_4444:
case TextureFormat::UNSIGNED_SHORT_4444:
{
const IVec4 swizzled = swizzleGe(color, TextureFormat::RGBA, m_format.order);
*((uint16_t *)pixelPtr) =
(uint16_t)(PU(swizzled[0], 12, 4) | PU(swizzled[1], 8, 4) | PU(swizzled[2], 4, 4) | PU(swizzled[3], 0, 4));
break;
}
case TextureFormat::UNORM_SHORT_5551:
case TextureFormat::UNSIGNED_SHORT_5551:
{
const IVec4 swizzled = swizzleGe(color, TextureFormat::RGBA, m_format.order);
*((uint16_t *)pixelPtr) =
(uint16_t)(PU(swizzled[0], 11, 5) | PU(swizzled[1], 6, 5) | PU(swizzled[2], 1, 5) | PU(swizzled[3], 0, 1));
break;
}
case TextureFormat::UNORM_SHORT_1555:
{
const IVec4 swizzled = swizzleGe(color, TextureFormat::RGBA, m_format.order);
*((uint16_t *)pixelPtr) =
(uint16_t)(PU(swizzled[0], 15, 1) | PU(swizzled[1], 10, 5) | PU(swizzled[2], 5, 5) | PU(swizzled[3], 0, 5));
break;
}
case TextureFormat::UNORM_INT_1010102_REV:
case TextureFormat::UNSIGNED_INT_1010102_REV:
case TextureFormat::USCALED_INT_1010102_REV:
{
const IVec4 swizzled = swizzleGe(color, TextureFormat::RGBA, m_format.order);
*((uint32_t *)pixelPtr) =
PU(swizzled[0], 0, 10) | PU(swizzled[1], 10, 10) | PU(swizzled[2], 20, 10) | PU(swizzled[3], 30, 2);
break;
}
case TextureFormat::SNORM_INT_1010102_REV:
case TextureFormat::SIGNED_INT_1010102_REV:
case TextureFormat::SSCALED_INT_1010102_REV:
{
const IVec4 swizzled = swizzleGe(color, TextureFormat::RGBA, m_format.order);
*((uint32_t *)pixelPtr) =
PI(swizzled[0], 0, 10) | PI(swizzled[1], 10, 10) | PI(swizzled[2], 20, 10) | PI(swizzled[3], 30, 2);
break;
}
default:
{
// Generic path.
int numChannels = getNumUsedChannels(m_format.order);
const TextureSwizzle::Channel *map = getChannelWriteSwizzle(m_format.order).components;
int channelSize = getChannelSize(m_format.type);
for (int c = 0; c < numChannels; c++)
{
DE_ASSERT(deInRange32(map[c], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3));
intToChannel(pixelPtr + channelSize * c, color[map[c]], m_format.type);
}
break;
}
}
#undef PU
#undef PI
}
void PixelBufferAccess::setPixDepth(float depth, int x, int y, int z) const
{
DE_ASSERT(de::inBounds(x, 0, getWidth()));
DE_ASSERT(de::inBounds(y, 0, getHeight()));
DE_ASSERT(de::inBounds(z, 0, getDepth()));
uint8_t *const pixelPtr = (uint8_t *)getPixelPtr(x, y, z);
switch (m_format.type)
{
case TextureFormat::UNSIGNED_INT_16_8_8:
DE_ASSERT(m_format.order == TextureFormat::DS);
writeUint32High16(pixelPtr, convertSatRte<uint16_t>(depth * 65535.0f));
break;
case TextureFormat::UNSIGNED_INT_24_8:
DE_ASSERT(m_format.order == TextureFormat::D || m_format.order == TextureFormat::DS);
writeUint32High24(pixelPtr, convertSatRteUint24(depth * 16777215.0f));
break;
case TextureFormat::UNSIGNED_INT_24_8_REV:
DE_ASSERT(m_format.order == TextureFormat::D || m_format.order == TextureFormat::DS);
writeUint32Low24(pixelPtr, convertSatRteUint24(depth * 16777215.0f));
break;
case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV:
DE_ASSERT(m_format.order == TextureFormat::DS);
*((float *)pixelPtr) = depth;
break;
default:
DE_ASSERT(m_format.order == TextureFormat::D); // no other combined depth stencil types
floatToChannel(pixelPtr, depth, m_format.type);
break;
}
}
void PixelBufferAccess::setPixStencil(int stencil, int x, int y, int z) const
{
DE_ASSERT(de::inBounds(x, 0, getWidth()));
DE_ASSERT(de::inBounds(y, 0, getHeight()));
DE_ASSERT(de::inBounds(z, 0, getDepth()));
uint8_t *const pixelPtr = (uint8_t *)getPixelPtr(x, y, z);
switch (m_format.type)
{
case TextureFormat::UNSIGNED_INT_16_8_8:
case TextureFormat::UNSIGNED_INT_24_8:
DE_ASSERT(m_format.order == TextureFormat::DS);
writeUint32Low8(pixelPtr, convertSat<uint8_t>((uint32_t)stencil));
break;
case TextureFormat::UNSIGNED_INT_24_8_REV:
DE_ASSERT(m_format.order == TextureFormat::DS);
writeUint32High8(pixelPtr, convertSat<uint8_t>((uint32_t)stencil));
break;
case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV:
DE_ASSERT(m_format.order == TextureFormat::DS);
writeUint32Low8(pixelPtr + 4, convertSat<uint8_t>((uint32_t)stencil));
break;
default:
DE_ASSERT(m_format.order == TextureFormat::S); // no other combined depth stencil types
intToChannel(pixelPtr, stencil, m_format.type);
break;
}
}
static inline int imod(int a, int b)
{
int m = a % b;
return m < 0 ? m + b : m;
}
static inline int mirror(int a)
{
return a >= 0 ? a : -(1 + a);
}
// Nearest-even rounding in case of tie (fractional part 0.5), otherwise ordinary rounding.
static inline float rint(float a)
{
DE_STATIC_ASSERT((-3 % 2 != 0) && (-4 % 2 == 0));
float fracVal = deFloatFrac(a);
if (fracVal != 0.5f)
return deFloatRound(a); // Ordinary case.
float floorVal = a - fracVal;
bool roundUp = (int64_t)floorVal % 2 != 0;
return floorVal + (roundUp ? 1.0f : 0.0f);
}
static inline int wrap(Sampler::WrapMode mode, int c, int size)
{
switch (mode)
{
case tcu::Sampler::CLAMP_TO_BORDER:
return deClamp32(c, -1, size);
case tcu::Sampler::CLAMP_TO_EDGE:
return deClamp32(c, 0, size - 1);
case tcu::Sampler::REPEAT_GL:
return imod(c, size);
case tcu::Sampler::REPEAT_CL:
return imod(c, size);
case tcu::Sampler::MIRRORED_ONCE:
c = deClamp32(c, -size, size);
// Fall-through
case tcu::Sampler::MIRRORED_REPEAT_GL:
return (size - 1) - mirror(imod(c, 2 * size) - size);
case tcu::Sampler::MIRRORED_REPEAT_CL:
return deClamp32(c, 0, size - 1); // \note Actual mirroring done already in unnormalization function.
default:
DE_ASSERT(false);
return 0;
}
}
// Special unnormalization for REPEAT_CL and MIRRORED_REPEAT_CL wrap modes; otherwise ordinary unnormalization.
static inline float unnormalize(Sampler::WrapMode mode, float c, int size)
{
switch (mode)
{
case tcu::Sampler::CLAMP_TO_EDGE:
case tcu::Sampler::CLAMP_TO_BORDER:
case tcu::Sampler::REPEAT_GL:
case tcu::Sampler::MIRRORED_REPEAT_GL:
case tcu::Sampler::MIRRORED_ONCE: // Fall-through (ordinary case).
return (float)size * c;
case tcu::Sampler::REPEAT_CL:
return (float)size * (c - deFloatFloor(c));
case tcu::Sampler::MIRRORED_REPEAT_CL:
return (float)size * deFloatAbs(c - 2.0f * rint(0.5f * c));
default:
DE_ASSERT(false);
return 0.0f;
}
}
static bool isFixedPointDepthTextureFormat(const tcu::TextureFormat &format)
{
DE_ASSERT(format.order == TextureFormat::D || format.order == TextureFormat::R);
const tcu::TextureChannelClass channelClass = tcu::getTextureChannelClass(format.type);
if (channelClass == tcu::TEXTURECHANNELCLASS_FLOATING_POINT)
return false;
else if (channelClass == tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT)
return true;
else
{
DE_ASSERT(false);
return false;
}
}
// Texel lookup with color conversion.
static inline Vec4 lookup(const ConstPixelBufferAccess &access, int i, int j, int k)
{
const TextureFormat &format = access.getFormat();
if (isSRGB(format))
{
if (format.type == TextureFormat::UNORM_INT8 && format.order == TextureFormat::sRGB)
return sRGB8ToLinear(access.getPixelUint(i, j, k));
else if (format.type == TextureFormat::UNORM_INT8 && format.order == TextureFormat::sRGBA)
return sRGBA8ToLinear(access.getPixelUint(i, j, k));
else
return sRGBToLinear(access.getPixel(i, j, k));
}
else
{
return access.getPixel(i, j, k);
}
}
// Border texel lookup with color conversion.
static inline Vec4 lookupBorder(const tcu::TextureFormat &format, const tcu::Sampler &sampler)
{
// "lookup" for a combined format does not make sense, disallow
DE_ASSERT(!isCombinedDepthStencilType(format.type));
const tcu::TextureChannelClass channelClass = tcu::getTextureChannelClass(format.type);
const bool isFloat = channelClass == tcu::TEXTURECHANNELCLASS_FLOATING_POINT;
const bool isFixed = channelClass == tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT ||
channelClass == tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
const bool isPureInteger = channelClass == tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER;
const bool isPureUnsignedInteger = channelClass == tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
if (isFloat || isFixed)
return sampleTextureBorder<float>(format, sampler);
else if (isPureInteger)
return sampleTextureBorder<int32_t>(format, sampler).cast<float>();
else if (isPureUnsignedInteger)
return sampleTextureBorder<uint32_t>(format, sampler).cast<float>();
else
{
DE_ASSERT(false);
return Vec4(-1.0);
}
}
static inline float execCompare(const tcu::Vec4 &color, Sampler::CompareMode compare, int chanNdx, float ref_,
bool isFixedPoint)
{
const bool clampValues =
isFixedPoint; // if comparing against a floating point texture, ref (and value) is not clamped
const float cmp = (clampValues) ? (de::clamp(color[chanNdx], 0.0f, 1.0f)) : (color[chanNdx]);
const float ref = (clampValues) ? (de::clamp(ref_, 0.0f, 1.0f)) : (ref_);
bool res = false;
switch (compare)
{
case Sampler::COMPAREMODE_LESS:
res = ref < cmp;
break;
case Sampler::COMPAREMODE_LESS_OR_EQUAL:
res = ref <= cmp;
break;
case Sampler::COMPAREMODE_GREATER:
res = ref > cmp;
break;
case Sampler::COMPAREMODE_GREATER_OR_EQUAL:
res = ref >= cmp;
break;
case Sampler::COMPAREMODE_EQUAL:
res = ref == cmp;
break;
case Sampler::COMPAREMODE_NOT_EQUAL:
res = ref != cmp;
break;
case Sampler::COMPAREMODE_ALWAYS:
res = true;
break;
case Sampler::COMPAREMODE_NEVER:
res = false;
break;
default:
DE_ASSERT(false);
}
return res ? 1.0f : 0.0f;
}
static Vec4 sampleNearest1D(const ConstPixelBufferAccess &access, const Sampler &sampler, float u, const IVec2 &offset)
{
int width = access.getWidth();
int x = deFloorFloatToInt32(u) + offset.x();
// Check for CLAMP_TO_BORDER.
if (sampler.wrapS == Sampler::CLAMP_TO_BORDER && !deInBounds32(x, 0, width))
return lookupBorder(access.getFormat(), sampler);
int i = wrap(sampler.wrapS, x, width);
return lookup(access, i, offset.y(), 0);
}
static Vec4 sampleNearest2D(const ConstPixelBufferAccess &access, const Sampler &sampler, float u, float v,
const IVec3 &offset)
{
int width = access.getWidth();
int height = access.getHeight();
int x = deFloorFloatToInt32(u) + offset.x();
int y = deFloorFloatToInt32(v) + offset.y();
// Check for CLAMP_TO_BORDER.
if ((sampler.wrapS == Sampler::CLAMP_TO_BORDER && !deInBounds32(x, 0, width)) ||
(sampler.wrapT == Sampler::CLAMP_TO_BORDER && !deInBounds32(y, 0, height)))
return lookupBorder(access.getFormat(), sampler);
int i = wrap(sampler.wrapS, x, width);
int j = wrap(sampler.wrapT, y, height);
return lookup(access, i, j, offset.z());
}
static Vec4 sampleNearest3D(const ConstPixelBufferAccess &access, const Sampler &sampler, float u, float v, float w,
const IVec3 &offset)
{
int width = access.getWidth();
int height = access.getHeight();
int depth = access.getDepth();
int x = deFloorFloatToInt32(u) + offset.x();
int y = deFloorFloatToInt32(v) + offset.y();
int z = deFloorFloatToInt32(w) + offset.z();
// Check for CLAMP_TO_BORDER.
if ((sampler.wrapS == Sampler::CLAMP_TO_BORDER && !deInBounds32(x, 0, width)) ||
(sampler.wrapT == Sampler::CLAMP_TO_BORDER && !deInBounds32(y, 0, height)) ||
(sampler.wrapR == Sampler::CLAMP_TO_BORDER && !deInBounds32(z, 0, depth)))
return lookupBorder(access.getFormat(), sampler);
int i = wrap(sampler.wrapS, x, width);
int j = wrap(sampler.wrapT, y, height);
int k = wrap(sampler.wrapR, z, depth);
return lookup(access, i, j, k);
}
static Vec4 sampleLinear1D(const ConstPixelBufferAccess &access, const Sampler &sampler, float u, const IVec2 &offset)
{
int w = access.getWidth();
int x0 = deFloorFloatToInt32(u - 0.5f) + offset.x();
int x1 = x0 + 1;
int i0 = wrap(sampler.wrapS, x0, w);
int i1 = wrap(sampler.wrapS, x1, w);
float a = deFloatFrac(u - 0.5f);
bool i0UseBorder = sampler.wrapS == Sampler::CLAMP_TO_BORDER && !de::inBounds(i0, 0, w);
bool i1UseBorder = sampler.wrapS == Sampler::CLAMP_TO_BORDER && !de::inBounds(i1, 0, w);
// Border color for out-of-range coordinates if using CLAMP_TO_BORDER, otherwise execute lookups.
Vec4 p0 = i0UseBorder ? lookupBorder(access.getFormat(), sampler) : lookup(access, i0, offset.y(), 0);
Vec4 p1 = i1UseBorder ? lookupBorder(access.getFormat(), sampler) : lookup(access, i1, offset.y(), 0);
// Interpolate.
return p0 * (1.0f - a) + p1 * a;
}
static Vec4 sampleCubic1D(const ConstPixelBufferAccess &access, const Sampler &sampler, float u, const IVec2 &offset)
{
int width = access.getWidth();
tcu::IVec4 x, i;
x[0] = deFloorFloatToInt32(u - 1.5f) + offset.x();
x[1] = x[0] + 1;
x[2] = x[1] + 1;
x[3] = x[2] + 1;
for (uint32_t m = 0; m < 4; ++m)
i[m] = wrap(sampler.wrapS, x[m], width);
bool iUseBorder[4];
for (uint32_t m = 0; m < 4; ++m)
iUseBorder[m] = sampler.wrapS == Sampler::CLAMP_TO_BORDER && !de::inBounds(i[m], 0, width);
// Catmull-Rom basis matrix
static const float crValues[16] = {0.0f, 1.0f, 0.0f, 0.0f, -0.5f, 0.0f, 0.5f, 0.0f,
1.0f, -2.5f, 2.0f, -0.5f, -0.5f, 1.5f, -1.5f, 0.5f};
static const tcu::Mat4 crBasis(crValues);
float a = deFloatFrac(u - 0.5f);
tcu::Vec4 alpha(1, a, a * a, a * a * a);
tcu::Vec4 wi = alpha * crBasis;
tcu::Vec4 result(0.0f, 0.0f, 0.0f, 0.0f);
for (uint32_t m = 0; m < 4; ++m)
{
tcu::Vec4 p = (iUseBorder[m]) ? lookupBorder(access.getFormat(), sampler) : lookup(access, i[m], offset.y(), 0);
result += wi[m] * p;
}
return result;
}
static Vec4 sampleLinear2D(const ConstPixelBufferAccess &access, const Sampler &sampler, float u, float v,
const IVec3 &offset)
{
int w = access.getWidth();
int h = access.getHeight();
int x0 = deFloorFloatToInt32(u - 0.5f) + offset.x();
int x1 = x0 + 1;
int y0 = deFloorFloatToInt32(v - 0.5f) + offset.y();
int y1 = y0 + 1;
int i0 = wrap(sampler.wrapS, x0, w);
int i1 = wrap(sampler.wrapS, x1, w);
int j0 = wrap(sampler.wrapT, y0, h);
int j1 = wrap(sampler.wrapT, y1, h);
float a = deFloatFrac(u - 0.5f);
float b = deFloatFrac(v - 0.5f);
bool i0UseBorder = sampler.wrapS == Sampler::CLAMP_TO_BORDER && !de::inBounds(i0, 0, w);
bool i1UseBorder = sampler.wrapS == Sampler::CLAMP_TO_BORDER && !de::inBounds(i1, 0, w);
bool j0UseBorder = sampler.wrapT == Sampler::CLAMP_TO_BORDER && !de::inBounds(j0, 0, h);
bool j1UseBorder = sampler.wrapT == Sampler::CLAMP_TO_BORDER && !de::inBounds(j1, 0, h);
// Border color for out-of-range coordinates if using CLAMP_TO_BORDER, otherwise execute lookups.
Vec4 p00 =
(i0UseBorder || j0UseBorder) ? lookupBorder(access.getFormat(), sampler) : lookup(access, i0, j0, offset.z());
Vec4 p10 =
(i1UseBorder || j0UseBorder) ? lookupBorder(access.getFormat(), sampler) : lookup(access, i1, j0, offset.z());
Vec4 p01 =
(i0UseBorder || j1UseBorder) ? lookupBorder(access.getFormat(), sampler) : lookup(access, i0, j1, offset.z());
Vec4 p11 =
(i1UseBorder || j1UseBorder) ? lookupBorder(access.getFormat(), sampler) : lookup(access, i1, j1, offset.z());
// Interpolate.
return (p00 * (1.0f - a) * (1.0f - b)) + (p10 * (a) * (1.0f - b)) + (p01 * (1.0f - a) * (b)) + (p11 * (a) * (b));
}
static Vec4 sampleCubic2D(const ConstPixelBufferAccess &access, const Sampler &sampler, float u, float v,
const IVec3 &offset)
{
int width = access.getWidth();
int height = access.getHeight();
tcu::IVec4 x, y, i, j;
x[0] = deFloorFloatToInt32(u - 1.5f) + offset.x();
x[1] = x[0] + 1;
x[2] = x[1] + 1;
x[3] = x[2] + 1;
y[0] = deFloorFloatToInt32(v - 1.5f) + offset.y();
y[1] = y[0] + 1;
y[2] = y[1] + 1;
y[3] = y[2] + 1;
for (uint32_t m = 0; m < 4; ++m)
i[m] = wrap(sampler.wrapS, x[m], width);
for (uint32_t n = 0; n < 4; ++n)
j[n] = wrap(sampler.wrapT, y[n], height);
bool iUseBorder[4], jUseBorder[4];
for (uint32_t m = 0; m < 4; ++m)
iUseBorder[m] = sampler.wrapS == Sampler::CLAMP_TO_BORDER && !de::inBounds(i[m], 0, width);
for (uint32_t n = 0; n < 4; ++n)
jUseBorder[n] = sampler.wrapT == Sampler::CLAMP_TO_BORDER && !de::inBounds(j[n], 0, height);
// Catmull-Rom basis matrix
static const float crValues[16] = {0.0f, 1.0f, 0.0f, 0.0f, -0.5f, 0.0f, 0.5f, 0.0f,
1.0f, -2.5f, 2.0f, -0.5f, -0.5f, 1.5f, -1.5f, 0.5f};
static const tcu::Mat4 crBasis(crValues);
float a = deFloatFrac(u - 0.5f);
float b = deFloatFrac(v - 0.5f);
tcu::Vec4 alpha(1, a, a * a, a * a * a);
tcu::Vec4 beta(1, b, b * b, b * b * b);
tcu::Vec4 wi = alpha * crBasis;
tcu::Vec4 wj = beta * crBasis;
tcu::Vec4 result(0.0f, 0.0f, 0.0f, 0.0f);
for (uint32_t n = 0; n < 4; ++n)
for (uint32_t m = 0; m < 4; ++m)
{
tcu::Vec4 p = (iUseBorder[m] || jUseBorder[n]) ? lookupBorder(access.getFormat(), sampler) :
lookup(access, i[m], j[n], offset.z());
result += wi[m] * wj[n] * p;
}
return result;
}
static float sampleLinear1DCompare(const ConstPixelBufferAccess &access, const Sampler &sampler, float ref, float u,
const IVec2 &offset, bool isFixedPointDepthFormat)
{
int w = access.getWidth();
int x0 = deFloorFloatToInt32(u - 0.5f) + offset.x();
int x1 = x0 + 1;
int i0 = wrap(sampler.wrapS, x0, w);
int i1 = wrap(sampler.wrapS, x1, w);
float a = deFloatFrac(u - 0.5f);
bool i0UseBorder = sampler.wrapS == Sampler::CLAMP_TO_BORDER && !de::inBounds(i0, 0, w);
bool i1UseBorder = sampler.wrapS == Sampler::CLAMP_TO_BORDER && !de::inBounds(i1, 0, w);
// Border color for out-of-range coordinates if using CLAMP_TO_BORDER, otherwise execute lookups.
Vec4 p0Clr = i0UseBorder ? lookupBorder(access.getFormat(), sampler) : lookup(access, i0, offset.y(), 0);
Vec4 p1Clr = i1UseBorder ? lookupBorder(access.getFormat(), sampler) : lookup(access, i1, offset.y(), 0);
// Execute comparisons.
float p0 = execCompare(p0Clr, sampler.compare, sampler.compareChannel, ref, isFixedPointDepthFormat);
float p1 = execCompare(p1Clr, sampler.compare, sampler.compareChannel, ref, isFixedPointDepthFormat);
// Interpolate.
return (p0 * (1.0f - a)) + (p1 * a);
}
static float sampleLinear2DCompare(const ConstPixelBufferAccess &access, const Sampler &sampler, float ref, float u,
float v, const IVec3 &offset, bool isFixedPointDepthFormat)
{
int w = access.getWidth();
int h = access.getHeight();
int x0 = deFloorFloatToInt32(u - 0.5f) + offset.x();
int x1 = x0 + 1;
int y0 = deFloorFloatToInt32(v - 0.5f) + offset.y();
int y1 = y0 + 1;
int i0 = wrap(sampler.wrapS, x0, w);
int i1 = wrap(sampler.wrapS, x1, w);
int j0 = wrap(sampler.wrapT, y0, h);
int j1 = wrap(sampler.wrapT, y1, h);
float a = deFloatFrac(u - 0.5f);
float b = deFloatFrac(v - 0.5f);
bool i0UseBorder = sampler.wrapS == Sampler::CLAMP_TO_BORDER && !de::inBounds(i0, 0, w);
bool i1UseBorder = sampler.wrapS == Sampler::CLAMP_TO_BORDER && !de::inBounds(i1, 0, w);
bool j0UseBorder = sampler.wrapT == Sampler::CLAMP_TO_BORDER && !de::inBounds(j0, 0, h);
bool j1UseBorder = sampler.wrapT == Sampler::CLAMP_TO_BORDER && !de::inBounds(j1, 0, h);
// Border color for out-of-range coordinates if using CLAMP_TO_BORDER, otherwise execute lookups.
Vec4 p00Clr =
(i0UseBorder || j0UseBorder) ? lookupBorder(access.getFormat(), sampler) : lookup(access, i0, j0, offset.z());
Vec4 p10Clr =
(i1UseBorder || j0UseBorder) ? lookupBorder(access.getFormat(), sampler) : lookup(access, i1, j0, offset.z());
Vec4 p01Clr =
(i0UseBorder || j1UseBorder) ? lookupBorder(access.getFormat(), sampler) : lookup(access, i0, j1, offset.z());
Vec4 p11Clr =
(i1UseBorder || j1UseBorder) ? lookupBorder(access.getFormat(), sampler) : lookup(access, i1, j1, offset.z());
// Execute comparisons.
float p00 = execCompare(p00Clr, sampler.compare, sampler.compareChannel, ref, isFixedPointDepthFormat);
float p10 = execCompare(p10Clr, sampler.compare, sampler.compareChannel, ref, isFixedPointDepthFormat);
float p01 = execCompare(p01Clr, sampler.compare, sampler.compareChannel, ref, isFixedPointDepthFormat);
float p11 = execCompare(p11Clr, sampler.compare, sampler.compareChannel, ref, isFixedPointDepthFormat);
// Interpolate.
return (p00 * (1.0f - a) * (1.0f - b)) + (p10 * (a) * (1.0f - b)) + (p01 * (1.0f - a) * (b)) + (p11 * (a) * (b));
}
static Vec4 sampleLinear3D(const ConstPixelBufferAccess &access, const Sampler &sampler, float u, float v, float w,
const IVec3 &offset)
{
int width = access.getWidth();
int height = access.getHeight();
int depth = access.getDepth();
int x0 = deFloorFloatToInt32(u - 0.5f) + offset.x();
int x1 = x0 + 1;
int y0 = deFloorFloatToInt32(v - 0.5f) + offset.y();
int y1 = y0 + 1;
int z0 = deFloorFloatToInt32(w - 0.5f) + offset.z();
int z1 = z0 + 1;
int i0 = wrap(sampler.wrapS, x0, width);
int i1 = wrap(sampler.wrapS, x1, width);
int j0 = wrap(sampler.wrapT, y0, height);
int j1 = wrap(sampler.wrapT, y1, height);
int k0 = wrap(sampler.wrapR, z0, depth);
int k1 = wrap(sampler.wrapR, z1, depth);
float a = deFloatFrac(u - 0.5f);
float b = deFloatFrac(v - 0.5f);
float c = deFloatFrac(w - 0.5f);
bool i0UseBorder = sampler.wrapS == Sampler::CLAMP_TO_BORDER && !de::inBounds(i0, 0, width);
bool i1UseBorder = sampler.wrapS == Sampler::CLAMP_TO_BORDER && !de::inBounds(i1, 0, width);
bool j0UseBorder = sampler.wrapT == Sampler::CLAMP_TO_BORDER && !de::inBounds(j0, 0, height);
bool j1UseBorder = sampler.wrapT == Sampler::CLAMP_TO_BORDER && !de::inBounds(j1, 0, height);
bool k0UseBorder = sampler.wrapR == Sampler::CLAMP_TO_BORDER && !de::inBounds(k0, 0, depth);
bool k1UseBorder = sampler.wrapR == Sampler::CLAMP_TO_BORDER && !de::inBounds(k1, 0, depth);
// Border color for out-of-range coordinates if using CLAMP_TO_BORDER, otherwise execute lookups.
Vec4 p000 = (i0UseBorder || j0UseBorder || k0UseBorder) ? lookupBorder(access.getFormat(), sampler) :
lookup(access, i0, j0, k0);
Vec4 p100 = (i1UseBorder || j0UseBorder || k0UseBorder) ? lookupBorder(access.getFormat(), sampler) :
lookup(access, i1, j0, k0);
Vec4 p010 = (i0UseBorder || j1UseBorder || k0UseBorder) ? lookupBorder(access.getFormat(), sampler) :
lookup(access, i0, j1, k0);
Vec4 p110 = (i1UseBorder || j1UseBorder || k0UseBorder) ? lookupBorder(access.getFormat(), sampler) :
lookup(access, i1, j1, k0);
Vec4 p001 = (i0UseBorder || j0UseBorder || k1UseBorder) ? lookupBorder(access.getFormat(), sampler) :
lookup(access, i0, j0, k1);
Vec4 p101 = (i1UseBorder || j0UseBorder || k1UseBorder) ? lookupBorder(access.getFormat(), sampler) :
lookup(access, i1, j0, k1);
Vec4 p011 = (i0UseBorder || j1UseBorder || k1UseBorder) ? lookupBorder(access.getFormat(), sampler) :
lookup(access, i0, j1, k1);
Vec4 p111 = (i1UseBorder || j1UseBorder || k1UseBorder) ? lookupBorder(access.getFormat(), sampler) :
lookup(access, i1, j1, k1);
// Interpolate.
return (p000 * (1.0f - a) * (1.0f - b) * (1.0f - c)) + (p100 * (a) * (1.0f - b) * (1.0f - c)) +
(p010 * (1.0f - a) * (b) * (1.0f - c)) + (p110 * (a) * (b) * (1.0f - c)) +
(p001 * (1.0f - a) * (1.0f - b) * (c)) + (p101 * (a) * (1.0f - b) * (c)) + (p011 * (1.0f - a) * (b) * (c)) +
(p111 * (a) * (b) * (c));
}
static Vec4 sampleCubic3D(const ConstPixelBufferAccess &access, const Sampler &sampler, float u, float v, float w,
const IVec3 &offset)
{
int width = access.getWidth();
int height = access.getHeight();
int depth = access.getDepth();
tcu::IVec4 x, y, z, i, j, k;
x[0] = deFloorFloatToInt32(u - 1.5f) + offset.x();
x[1] = x[0] + 1;
x[2] = x[1] + 1;
x[3] = x[2] + 1;
y[0] = deFloorFloatToInt32(v - 1.5f) + offset.y();
y[1] = y[0] + 1;
y[2] = y[1] + 1;
y[3] = y[2] + 1;
z[0] = deFloorFloatToInt32(w - 1.5f) + offset.z();
z[1] = z[0] + 1;
z[2] = z[1] + 1;
z[3] = z[2] + 1;
for (uint32_t m = 0; m < 4; ++m)
i[m] = wrap(sampler.wrapS, x[m], width);
for (uint32_t n = 0; n < 4; ++n)
j[n] = wrap(sampler.wrapT, y[n], height);
for (uint32_t o = 0; o < 4; ++o)
k[o] = wrap(sampler.wrapR, k[o], depth);
bool iUseBorder[4], jUseBorder[4], kUseBorder[4];
for (uint32_t m = 0; m < 4; ++m)
iUseBorder[m] = sampler.wrapS == Sampler::CLAMP_TO_BORDER && !de::inBounds(i[m], 0, width);
for (uint32_t n = 0; n < 4; ++n)
jUseBorder[n] = sampler.wrapT == Sampler::CLAMP_TO_BORDER && !de::inBounds(j[n], 0, height);
for (uint32_t o = 0; o < 4; ++o)
kUseBorder[o] = sampler.wrapR == Sampler::CLAMP_TO_BORDER && !de::inBounds(k[o], 0, depth);
// Catmull-Rom basis matrix
static const float crValues[16] = {0.0f, 1.0f, 0.0f, 0.0f, -0.5f, 0.0f, 0.5f, 0.0f,
1.0f, -2.5f, 2.0f, -0.5f, -0.5f, 1.5f, -1.5f, 0.5f};
static const tcu::Mat4 crBasis(crValues);
float a = deFloatFrac(u - 0.5f);
float b = deFloatFrac(v - 0.5f);
float c = deFloatFrac(w - 0.5f);
tcu::Vec4 alpha(1, a, a * a, a * a * a);
tcu::Vec4 beta(1, b, b * b, b * b * b);
tcu::Vec4 gamma(1, c, c * c, c * c * c);
tcu::Vec4 wi = alpha * crBasis;
tcu::Vec4 wj = beta * crBasis;
tcu::Vec4 wk = gamma * crBasis;
tcu::Vec4 result(0.0f, 0.0f, 0.0f, 0.0f);
for (uint32_t o = 0; o < 4; ++o)
for (uint32_t n = 0; n < 4; ++n)
for (uint32_t m = 0; m < 4; ++m)
{
tcu::Vec4 p = (iUseBorder[m] || jUseBorder[n] || kUseBorder[o]) ?
lookupBorder(access.getFormat(), sampler) :
lookup(access, i[m], j[n], k[o]);
result += wi[m] * wj[n] * wk[o] * p;
}
return result;
}
Vec4 ConstPixelBufferAccess::sample1D(const Sampler &sampler, Sampler::FilterMode filter, float s, int level) const
{
// check selected layer exists
DE_ASSERT(de::inBounds(level, 0, m_size.y()));
return sample1DOffset(sampler, filter, s, tcu::IVec2(0, level));
}
Vec4 ConstPixelBufferAccess::sample2D(const Sampler &sampler, Sampler::FilterMode filter, float s, float t,
int depth) const
{
// check selected layer exists
DE_ASSERT(de::inBounds(depth, 0, m_size.z()));
return sample2DOffset(sampler, filter, s, t, tcu::IVec3(0, 0, depth));
}
Vec4 ConstPixelBufferAccess::sample3D(const Sampler &sampler, Sampler::FilterMode filter, float s, float t,
float r) const
{
return sample3DOffset(sampler, filter, s, t, r, tcu::IVec3(0, 0, 0));
}
Vec4 ConstPixelBufferAccess::sample1DOffset(const Sampler &sampler, Sampler::FilterMode filter, float s,
const IVec2 &offset) const
{
// check selected layer exists
// \note offset.x is X offset, offset.y is the selected layer
DE_ASSERT(de::inBounds(offset.y(), 0, m_size.y()));
// Non-normalized coordinates.
float u = s;
if (sampler.normalizedCoords)
u = unnormalize(sampler.wrapS, s, m_size.x());
switch (filter)
{
case Sampler::NEAREST:
return sampleNearest1D(*this, sampler, u, offset);
case Sampler::LINEAR:
return sampleLinear1D(*this, sampler, u, offset);
case Sampler::CUBIC:
return sampleCubic1D(*this, sampler, u, offset);
default:
DE_ASSERT(false);
return Vec4(0.0f);
}
}
Vec4 ConstPixelBufferAccess::sample2DOffset(const Sampler &sampler, Sampler::FilterMode filter, float s, float t,
const IVec3 &offset) const
{
// check selected layer exists
// \note offset.xy is the XY offset, offset.z is the selected layer
DE_ASSERT(de::inBounds(offset.z(), 0, m_size.z()));
// Non-normalized coordinates.
float u = s;
float v = t;
if (sampler.normalizedCoords)
{
u = unnormalize(sampler.wrapS, s, m_size.x());
v = unnormalize(sampler.wrapT, t, m_size.y());
}
switch (filter)
{
case Sampler::NEAREST:
return sampleNearest2D(*this, sampler, u, v, offset);
case Sampler::LINEAR:
return sampleLinear2D(*this, sampler, u, v, offset);
case Sampler::CUBIC:
return sampleCubic2D(*this, sampler, u, v, offset);
default:
DE_ASSERT(false);
return Vec4(0.0f);
}
}
Vec4 ConstPixelBufferAccess::sample3DOffset(const Sampler &sampler, Sampler::FilterMode filter, float s, float t,
float r, const IVec3 &offset) const
{
// Non-normalized coordinates.
float u = s;
float v = t;
float w = r;
if (sampler.normalizedCoords)
{
u = unnormalize(sampler.wrapS, s, m_size.x());
v = unnormalize(sampler.wrapT, t, m_size.y());
w = unnormalize(sampler.wrapR, r, m_size.z());
}
switch (filter)
{
case Sampler::NEAREST:
return sampleNearest3D(*this, sampler, u, v, w, offset);
case Sampler::LINEAR:
return sampleLinear3D(*this, sampler, u, v, w, offset);
case Sampler::CUBIC:
return sampleCubic3D(*this, sampler, u, v, w, offset);
default:
DE_ASSERT(false);
return Vec4(0.0f);
}
}
float ConstPixelBufferAccess::sample1DCompare(const Sampler &sampler, Sampler::FilterMode filter, float ref, float s,
const IVec2 &offset) const
{
// check selected layer exists
// \note offset.x is X offset, offset.y is the selected layer
DE_ASSERT(de::inBounds(offset.y(), 0, m_size.y()));
// Format information for comparison function
const bool isFixedPointDepth = isFixedPointDepthTextureFormat(m_format);
// Non-normalized coordinates.
float u = s;
if (sampler.normalizedCoords)
u = unnormalize(sampler.wrapS, s, m_size.x());
switch (filter)
{
case Sampler::NEAREST:
return execCompare(sampleNearest1D(*this, sampler, u, offset), sampler.compare, sampler.compareChannel, ref,
isFixedPointDepth);
case Sampler::LINEAR:
return sampleLinear1DCompare(*this, sampler, ref, u, offset, isFixedPointDepth);
default:
DE_ASSERT(false);
return 0.0f;
}
}
float ConstPixelBufferAccess::sample2DCompare(const Sampler &sampler, Sampler::FilterMode filter, float ref, float s,
float t, const IVec3 &offset) const
{
// check selected layer exists
// \note offset.xy is XY offset, offset.z is the selected layer
DE_ASSERT(de::inBounds(offset.z(), 0, m_size.z()));
// Format information for comparison function
const bool isFixedPointDepth = isFixedPointDepthTextureFormat(m_format);
// Non-normalized coordinates.
float u = s;
float v = t;
if (sampler.normalizedCoords)
{
u = unnormalize(sampler.wrapS, s, m_size.x());
v = unnormalize(sampler.wrapT, t, m_size.y());
}
switch (filter)
{
case Sampler::NEAREST:
return execCompare(sampleNearest2D(*this, sampler, u, v, offset), sampler.compare, sampler.compareChannel, ref,
isFixedPointDepth);
case Sampler::LINEAR:
return sampleLinear2DCompare(*this, sampler, ref, u, v, offset, isFixedPointDepth);
default:
DE_ASSERT(false);
return 0.0f;
}
}
TextureLevel::TextureLevel(void) : m_format(), m_size(0)
{
}
TextureLevel::TextureLevel(const TextureFormat &format) : m_format(format), m_size(0)
{
}
TextureLevel::TextureLevel(const TextureFormat &format, int width, int height, int depth) : m_format(format), m_size(0)
{
setSize(width, height, depth);
}
TextureLevel::~TextureLevel(void)
{
}
void TextureLevel::setStorage(const TextureFormat &format, int width, int height, int depth)
{
m_format = format;
setSize(width, height, depth);
}
void TextureLevel::setSize(int width, int height, int depth)
{
int pixelSize = m_format.getPixelSize();
m_size = IVec3(width, height, depth);
m_data.setStorage(m_size.x() * m_size.y() * m_size.z() * pixelSize);
}
Vec4 sampleLevelArray1D(const ConstPixelBufferAccess *levels, int numLevels, const Sampler &sampler, float s, int depth,
float lod)
{
return sampleLevelArray1DOffset(levels, numLevels, sampler, s, lod,
IVec2(0, depth)); // y-offset in 1D textures is layer selector
}
Vec4 sampleLevelArray2D(const ConstPixelBufferAccess *levels, int numLevels, const Sampler &sampler, float s, float t,
int depth, float lod, bool es2, ImageViewMinLodParams *minLodParams)
{
return sampleLevelArray2DOffset(levels, numLevels, sampler, s, t, lod, IVec3(0, 0, depth), es2,
minLodParams); // z-offset in 2D textures is layer selector
}
Vec4 sampleLevelArray3D(const ConstPixelBufferAccess *levels, int numLevels, const Sampler &sampler, float s, float t,
float r, float lod, ImageViewMinLodParams *minLodParams)
{
return sampleLevelArray3DOffset(levels, numLevels, sampler, s, t, r, lod, IVec3(0, 0, 0), minLodParams);
}
Vec4 sampleLevelArray1DOffset(const ConstPixelBufferAccess *levels, int numLevels, const Sampler &sampler, float s,
float lod, const IVec2 &offset)
{
bool magnified = lod <= sampler.lodThreshold;
Sampler::FilterMode filterMode = magnified ? sampler.magFilter : sampler.minFilter;
switch (filterMode)
{
case Sampler::NEAREST:
return levels[0].sample1DOffset(sampler, filterMode, s, offset);
case Sampler::LINEAR:
return levels[0].sample1DOffset(sampler, filterMode, s, offset);
case Sampler::NEAREST_MIPMAP_NEAREST:
case Sampler::LINEAR_MIPMAP_NEAREST:
{
int maxLevel = (int)numLevels - 1;
int level = deClamp32((int)deFloatCeil(lod + 0.5f) - 1, 0, maxLevel);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_NEAREST) ? Sampler::LINEAR : Sampler::NEAREST;
return levels[level].sample1DOffset(sampler, levelFilter, s, offset);
}
case Sampler::NEAREST_MIPMAP_LINEAR:
case Sampler::LINEAR_MIPMAP_LINEAR:
{
int maxLevel = (int)numLevels - 1;
int level0 = deClamp32((int)deFloatFloor(lod), 0, maxLevel);
int level1 = de::min(maxLevel, level0 + 1);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_LINEAR) ? Sampler::LINEAR : Sampler::NEAREST;
float f = deFloatFrac(lod);
tcu::Vec4 t0 = levels[level0].sample1DOffset(sampler, levelFilter, s, offset);
tcu::Vec4 t1 = levels[level1].sample1DOffset(sampler, levelFilter, s, offset);
return t0 * (1.0f - f) + t1 * f;
}
default:
DE_ASSERT(false);
return Vec4(0.0f);
}
}
Vec4 sampleLevelArray2DOffset(const ConstPixelBufferAccess *levels, int numLevels, const Sampler &sampler, float s,
float t, float lod, const IVec3 &offset, bool es2, ImageViewMinLodParams *minLodParams)
{
bool magnified;
// minLodRelative is used to calculate the image level to sample from, when VK_EXT_image_view_min_lod extension is enabled.
// The value is relative to baseLevel as the Texture*View was created as the baseLevel being level[0].
const float minLodRelative =
(minLodParams != DE_NULL) ? getImageViewMinLod(minLodParams->minLod) - (float)minLodParams->baseLevel : 0.0f;
if (es2 && sampler.magFilter == Sampler::LINEAR &&
(sampler.minFilter == Sampler::NEAREST_MIPMAP_NEAREST || sampler.minFilter == Sampler::NEAREST_MIPMAP_LINEAR))
magnified = lod <= 0.5;
else
magnified = lod <= sampler.lodThreshold;
// VK_EXT_image_view_min_lod: Integer Texel Coordinates case (with robustness2 supported)
if (minLodParams != DE_NULL && minLodParams->intTexCoord)
{
if (lod < deFloatFloor(minLodRelative) || lod >= (float)numLevels)
return Vec4(0.0f);
if (s < 0.0f || s > 1.0f || t < 0.0f || t > 1.0f)
return Vec4(0.0f);
}
Sampler::FilterMode filterMode = magnified ? sampler.magFilter : sampler.minFilter;
switch (filterMode)
{
case Sampler::NEAREST:
case Sampler::LINEAR:
case Sampler::CUBIC:
{
bool isLinearMipmapMode = magnified && tcu::isSamplerMipmapModeLinear(sampler.minFilter);
const int maxLevel = (int)numLevels - 1;
const int level0 = isLinearMipmapMode ? (int)deFloatFloor(minLodRelative) :
deClamp32((int)deFloatCeil(minLodRelative + 0.5f) - 1, 0, maxLevel);
tcu::Vec4 t0 = levels[level0].sample2DOffset(sampler, filterMode, s, t, offset);
if (!isLinearMipmapMode)
return t0;
const float frac = deFloatFrac(minLodRelative);
const int level1 = de::min(level0 + 1, maxLevel);
tcu::Vec4 t1 = levels[level1].sample2DOffset(sampler, filterMode, s, t, offset);
return t0 * (1.0f - frac) + t1 * frac;
}
case Sampler::NEAREST_MIPMAP_NEAREST:
case Sampler::LINEAR_MIPMAP_NEAREST:
case Sampler::CUBIC_MIPMAP_NEAREST:
{
if (minLodParams != DE_NULL && !minLodParams->intTexCoord)
lod = de::max(lod, minLodRelative);
int maxLevel = (int)numLevels - 1;
int level = deClamp32((int)deFloatCeil(lod + 0.5f) - 1, 0, maxLevel);
Sampler::FilterMode levelFilter;
switch (filterMode)
{
case Sampler::NEAREST_MIPMAP_NEAREST:
levelFilter = Sampler::NEAREST;
break;
case Sampler::LINEAR_MIPMAP_NEAREST:
levelFilter = Sampler::LINEAR;
break;
case Sampler::CUBIC_MIPMAP_NEAREST:
levelFilter = Sampler::CUBIC;
break;
default:
DE_ASSERT(false);
return Vec4(0.0f);
}
return levels[level].sample2DOffset(sampler, levelFilter, s, t, offset);
}
case Sampler::NEAREST_MIPMAP_LINEAR:
case Sampler::LINEAR_MIPMAP_LINEAR:
case Sampler::CUBIC_MIPMAP_LINEAR:
{
if (minLodParams != DE_NULL && !minLodParams->intTexCoord)
lod = de::max(lod, minLodRelative);
int maxLevel = (int)numLevels - 1;
int level0 = deClamp32((int)deFloatFloor(lod), 0, maxLevel);
int level1 = de::min(maxLevel, level0 + 1);
Sampler::FilterMode levelFilter;
switch (filterMode)
{
case Sampler::NEAREST_MIPMAP_LINEAR:
levelFilter = Sampler::NEAREST;
break;
case Sampler::LINEAR_MIPMAP_LINEAR:
levelFilter = Sampler::LINEAR;
break;
case Sampler::CUBIC_MIPMAP_LINEAR:
levelFilter = Sampler::CUBIC;
break;
default:
DE_ASSERT(false);
return Vec4(0.0f);
}
float f = deFloatFrac(lod);
tcu::Vec4 t0 = levels[level0].sample2DOffset(sampler, levelFilter, s, t, offset);
tcu::Vec4 t1 = levels[level1].sample2DOffset(sampler, levelFilter, s, t, offset);
return t0 * (1.0f - f) + t1 * f;
}
default:
DE_ASSERT(false);
return Vec4(0.0f);
}
}
Vec4 sampleLevelArray3DOffset(const ConstPixelBufferAccess *levels, int numLevels, const Sampler &sampler, float s,
float t, float r, float lod, const IVec3 &offset, ImageViewMinLodParams *minLodParams)
{
// minLodRelative is used to calculate the image level to sample from, when VK_EXT_image_view_min_lod extension is enabled.
// The value is relative to baseLevel as the Texture*View was created as the baseLevel being level[0].
const float minLodRelative =
(minLodParams != DE_NULL) ? getImageViewMinLod(minLodParams->minLod) - (float)minLodParams->baseLevel : 0.0f;
bool magnified = lod <= sampler.lodThreshold;
Sampler::FilterMode filterMode = magnified ? sampler.magFilter : sampler.minFilter;
// VK_EXT_image_view_min_lod: Integer Texel Coordinates case (with robustness2 supported)
if (minLodParams != DE_NULL && minLodParams->intTexCoord)
{
if (lod < deFloatFloor(minLodRelative) || lod >= (float)numLevels)
return Vec4(0.0f);
if (s < 0.0f || s > 1.0f || t < 0.0f || t > 1.0f)
return Vec4(0.0f);
}
switch (filterMode)
{
case Sampler::NEAREST:
case Sampler::LINEAR:
{
bool isLinearMipmapMode = magnified && tcu::isSamplerMipmapModeLinear(sampler.minFilter);
const int maxLevel = (int)numLevels - 1;
const int level0 = isLinearMipmapMode ? (int)deFloatFloor(minLodRelative) :
deClamp32((int)deFloatCeil(minLodRelative + 0.5f) - 1, 0, maxLevel);
tcu::Vec4 t0 = levels[level0].sample3DOffset(sampler, filterMode, s, t, r, offset);
if (!isLinearMipmapMode)
return t0;
const float frac = deFloatFrac(minLodRelative);
const int level1 = de::min(level0 + 1, maxLevel);
tcu::Vec4 t1 = levels[level1].sample3DOffset(sampler, filterMode, s, t, r, offset);
return t0 * (1.0f - frac) + t1 * frac;
}
case Sampler::NEAREST_MIPMAP_NEAREST:
case Sampler::LINEAR_MIPMAP_NEAREST:
{
if (minLodParams != DE_NULL && !minLodParams->intTexCoord)
lod = de::max(lod, minLodRelative);
int maxLevel = (int)numLevels - 1;
int level = deClamp32((int)deFloatCeil(lod + 0.5f) - 1, 0, maxLevel);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_NEAREST) ? Sampler::LINEAR : Sampler::NEAREST;
return levels[level].sample3DOffset(sampler, levelFilter, s, t, r, offset);
}
case Sampler::NEAREST_MIPMAP_LINEAR:
case Sampler::LINEAR_MIPMAP_LINEAR:
{
if (minLodParams != DE_NULL && !minLodParams->intTexCoord)
lod = de::max(lod, minLodRelative);
int maxLevel = (int)numLevels - 1;
int level0 = deClamp32((int)deFloatFloor(lod), 0, maxLevel);
int level1 = de::min(maxLevel, level0 + 1);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_LINEAR) ? Sampler::LINEAR : Sampler::NEAREST;
float f = deFloatFrac(lod);
tcu::Vec4 t0 = levels[level0].sample3DOffset(sampler, levelFilter, s, t, r, offset);
tcu::Vec4 t1 = levels[level1].sample3DOffset(sampler, levelFilter, s, t, r, offset);
return t0 * (1.0f - f) + t1 * f;
}
default:
DE_ASSERT(false);
return Vec4(0.0f);
}
}
float sampleLevelArray1DCompare(const ConstPixelBufferAccess *levels, int numLevels, const Sampler &sampler, float ref,
float s, float lod, const IVec2 &offset)
{
bool magnified = lod <= sampler.lodThreshold;
Sampler::FilterMode filterMode = magnified ? sampler.magFilter : sampler.minFilter;
switch (filterMode)
{
case Sampler::NEAREST:
return levels[0].sample1DCompare(sampler, filterMode, ref, s, offset);
case Sampler::LINEAR:
return levels[0].sample1DCompare(sampler, filterMode, ref, s, offset);
case Sampler::NEAREST_MIPMAP_NEAREST:
case Sampler::LINEAR_MIPMAP_NEAREST:
{
int maxLevel = (int)numLevels - 1;
int level = deClamp32((int)deFloatCeil(lod + 0.5f) - 1, 0, maxLevel);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_NEAREST) ? Sampler::LINEAR : Sampler::NEAREST;
return levels[level].sample1DCompare(sampler, levelFilter, ref, s, offset);
}
case Sampler::NEAREST_MIPMAP_LINEAR:
case Sampler::LINEAR_MIPMAP_LINEAR:
{
int maxLevel = (int)numLevels - 1;
int level0 = deClamp32((int)deFloatFloor(lod), 0, maxLevel);
int level1 = de::min(maxLevel, level0 + 1);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_LINEAR) ? Sampler::LINEAR : Sampler::NEAREST;
float f = deFloatFrac(lod);
float t0 = levels[level0].sample1DCompare(sampler, levelFilter, ref, s, offset);
float t1 = levels[level1].sample1DCompare(sampler, levelFilter, ref, s, offset);
return t0 * (1.0f - f) + t1 * f;
}
default:
DE_ASSERT(false);
return 0.0f;
}
}
float sampleLevelArray2DCompare(const ConstPixelBufferAccess *levels, int numLevels, const Sampler &sampler, float ref,
float s, float t, float lod, const IVec3 &offset)
{
bool magnified = lod <= sampler.lodThreshold;
Sampler::FilterMode filterMode = magnified ? sampler.magFilter : sampler.minFilter;
switch (filterMode)
{
case Sampler::NEAREST:
return levels[0].sample2DCompare(sampler, filterMode, ref, s, t, offset);
case Sampler::LINEAR:
return levels[0].sample2DCompare(sampler, filterMode, ref, s, t, offset);
case Sampler::NEAREST_MIPMAP_NEAREST:
case Sampler::LINEAR_MIPMAP_NEAREST:
{
int maxLevel = (int)numLevels - 1;
int level = deClamp32((int)deFloatCeil(lod + 0.5f) - 1, 0, maxLevel);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_NEAREST) ? Sampler::LINEAR : Sampler::NEAREST;
return levels[level].sample2DCompare(sampler, levelFilter, ref, s, t, offset);
}
case Sampler::NEAREST_MIPMAP_LINEAR:
case Sampler::LINEAR_MIPMAP_LINEAR:
{
int maxLevel = (int)numLevels - 1;
int level0 = deClamp32((int)deFloatFloor(lod), 0, maxLevel);
int level1 = de::min(maxLevel, level0 + 1);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_LINEAR) ? Sampler::LINEAR : Sampler::NEAREST;
float f = deFloatFrac(lod);
float t0 = levels[level0].sample2DCompare(sampler, levelFilter, ref, s, t, offset);
float t1 = levels[level1].sample2DCompare(sampler, levelFilter, ref, s, t, offset);
return t0 * (1.0f - f) + t1 * f;
}
default:
DE_ASSERT(false);
return 0.0f;
}
}
static Vec4 fetchGatherArray2DOffsets(const ConstPixelBufferAccess &src, const Sampler &sampler, float s, float t,
int depth, int componentNdx, const IVec2 (&offsets)[4])
{
DE_ASSERT(de::inBounds(componentNdx, 0, 4));
const int w = src.getWidth();
const int h = src.getHeight();
const float u = unnormalize(sampler.wrapS, s, w);
const float v = unnormalize(sampler.wrapT, t, h);
const int x0 = deFloorFloatToInt32(u - 0.5f);
const int y0 = deFloorFloatToInt32(v - 0.5f);
Vec4 result;
for (int i = 0; i < 4; i++)
{
const int sampleX = wrap(sampler.wrapS, x0 + offsets[i].x(), w);
const int sampleY = wrap(sampler.wrapT, y0 + offsets[i].y(), h);
Vec4 pixel;
if (deInBounds32(sampleX, 0, w) && deInBounds32(sampleY, 0, h))
pixel = lookup(src, sampleX, sampleY, depth);
else
pixel = lookupBorder(src.getFormat(), sampler);
result[i] = pixel[componentNdx];
}
return result;
}
Vec4 gatherArray2DOffsets(const ConstPixelBufferAccess &src, const Sampler &sampler, float s, float t, int depth,
int componentNdx, const IVec2 (&offsets)[4])
{
DE_ASSERT(sampler.compare == Sampler::COMPAREMODE_NONE);
DE_ASSERT(de::inBounds(componentNdx, 0, 4));
return fetchGatherArray2DOffsets(src, sampler, s, t, depth, componentNdx, offsets);
}
Vec4 gatherArray2DOffsetsCompare(const ConstPixelBufferAccess &src, const Sampler &sampler, float ref, float s, float t,
int depth, const IVec2 (&offsets)[4])
{
DE_ASSERT(sampler.compare != Sampler::COMPAREMODE_NONE);
DE_ASSERT(src.getFormat().order == TextureFormat::D || src.getFormat().order == TextureFormat::DS);
DE_ASSERT(sampler.compareChannel == 0);
const bool isFixedPoint = isFixedPointDepthTextureFormat(src.getFormat());
const Vec4 gathered = fetchGatherArray2DOffsets(src, sampler, s, t, depth, 0 /* component 0: depth */, offsets);
Vec4 result;
for (int i = 0; i < 4; i++)
result[i] = execCompare(gathered, sampler.compare, i, ref, isFixedPoint);
return result;
}
static Vec4 sampleCubeSeamlessNearest(const ConstPixelBufferAccess &faceAccess, const Sampler &sampler, float s,
float t, int depth)
{
Sampler clampingSampler = sampler;
clampingSampler.wrapS = Sampler::CLAMP_TO_EDGE;
clampingSampler.wrapT = Sampler::CLAMP_TO_EDGE;
return faceAccess.sample2D(clampingSampler, Sampler::NEAREST, s, t, depth);
}
CubeFace selectCubeFace(const Vec3 &coords)
{
const float x = coords.x();
const float y = coords.y();
const float z = coords.z();
const float ax = deFloatAbs(x);
const float ay = deFloatAbs(y);
const float az = deFloatAbs(z);
if (ay < ax && az < ax)
return x >= 0.0f ? CUBEFACE_POSITIVE_X : CUBEFACE_NEGATIVE_X;
else if (ax < ay && az < ay)
return y >= 0.0f ? CUBEFACE_POSITIVE_Y : CUBEFACE_NEGATIVE_Y;
else if (ax < az && ay < az)
return z >= 0.0f ? CUBEFACE_POSITIVE_Z : CUBEFACE_NEGATIVE_Z;
else
{
// Some of the components are equal. Use tie-breaking rule.
if (ax == ay)
{
if (ax < az)
return z >= 0.0f ? CUBEFACE_POSITIVE_Z : CUBEFACE_NEGATIVE_Z;
else
return x >= 0.0f ? CUBEFACE_POSITIVE_X : CUBEFACE_NEGATIVE_X;
}
else if (ax == az)
{
if (az < ay)
return y >= 0.0f ? CUBEFACE_POSITIVE_Y : CUBEFACE_NEGATIVE_Y;
else
return z >= 0.0f ? CUBEFACE_POSITIVE_Z : CUBEFACE_NEGATIVE_Z;
}
else if (ay == az)
{
if (ay < ax)
return x >= 0.0f ? CUBEFACE_POSITIVE_X : CUBEFACE_NEGATIVE_X;
else
return y >= 0.0f ? CUBEFACE_POSITIVE_Y : CUBEFACE_NEGATIVE_Y;
}
else
return x >= 0.0f ? CUBEFACE_POSITIVE_X : CUBEFACE_NEGATIVE_X;
}
}
Vec2 projectToFace(CubeFace face, const Vec3 &coord)
{
const float rx = coord.x();
const float ry = coord.y();
const float rz = coord.z();
float sc = 0.0f;
float tc = 0.0f;
float ma = 0.0f;
float s;
float t;
switch (face)
{
case CUBEFACE_NEGATIVE_X:
sc = +rz;
tc = -ry;
ma = -rx;
break;
case CUBEFACE_POSITIVE_X:
sc = -rz;
tc = -ry;
ma = +rx;
break;
case CUBEFACE_NEGATIVE_Y:
sc = +rx;
tc = -rz;
ma = -ry;
break;
case CUBEFACE_POSITIVE_Y:
sc = +rx;
tc = +rz;
ma = +ry;
break;
case CUBEFACE_NEGATIVE_Z:
sc = -rx;
tc = -ry;
ma = -rz;
break;
case CUBEFACE_POSITIVE_Z:
sc = +rx;
tc = -ry;
ma = +rz;
break;
default:
DE_ASSERT(false);
}
if (fabs(ma) < FLT_EPSILON)
{
return Vec2(0.0f);
}
// Compute s, t
s = ((sc / ma) + 1.0f) / 2.0f;
t = ((tc / ma) + 1.0f) / 2.0f;
return Vec2(s, t);
}
CubeFaceFloatCoords getCubeFaceCoords(const Vec3 &coords)
{
const CubeFace face = selectCubeFace(coords);
return CubeFaceFloatCoords(face, projectToFace(face, coords));
}
// Checks if origCoords.coords is in bounds defined by size; if not, return a CubeFaceIntCoords with face set to the appropriate neighboring face and coords transformed accordingly.
// \note If both x and y in origCoords.coords are out of bounds, this returns with face CUBEFACE_LAST, signifying that there is no unique neighboring face.
CubeFaceIntCoords remapCubeEdgeCoords(const CubeFaceIntCoords &origCoords, int size)
{
bool uInBounds = de::inBounds(origCoords.s, 0, size);
bool vInBounds = de::inBounds(origCoords.t, 0, size);
if (uInBounds && vInBounds)
return origCoords;
if (!uInBounds && !vInBounds)
return CubeFaceIntCoords(CUBEFACE_LAST, -1, -1);
IVec2 coords(wrap(Sampler::CLAMP_TO_BORDER, origCoords.s, size),
wrap(Sampler::CLAMP_TO_BORDER, origCoords.t, size));
IVec3 canonizedCoords;
// Map the uv coordinates to canonized 3d coordinates.
switch (origCoords.face)
{
case CUBEFACE_NEGATIVE_X:
canonizedCoords = IVec3(0, size - 1 - coords.y(), coords.x());
break;
case CUBEFACE_POSITIVE_X:
canonizedCoords = IVec3(size - 1, size - 1 - coords.y(), size - 1 - coords.x());
break;
case CUBEFACE_NEGATIVE_Y:
canonizedCoords = IVec3(coords.x(), 0, size - 1 - coords.y());
break;
case CUBEFACE_POSITIVE_Y:
canonizedCoords = IVec3(coords.x(), size - 1, coords.y());
break;
case CUBEFACE_NEGATIVE_Z:
canonizedCoords = IVec3(size - 1 - coords.x(), size - 1 - coords.y(), 0);
break;
case CUBEFACE_POSITIVE_Z:
canonizedCoords = IVec3(coords.x(), size - 1 - coords.y(), size - 1);
break;
default:
DE_ASSERT(false);
}
// Find an appropriate face to re-map the coordinates to.
if (canonizedCoords.x() == -1)
return CubeFaceIntCoords(CUBEFACE_NEGATIVE_X, IVec2(canonizedCoords.z(), size - 1 - canonizedCoords.y()));
if (canonizedCoords.x() == size)
return CubeFaceIntCoords(CUBEFACE_POSITIVE_X,
IVec2(size - 1 - canonizedCoords.z(), size - 1 - canonizedCoords.y()));
if (canonizedCoords.y() == -1)
return CubeFaceIntCoords(CUBEFACE_NEGATIVE_Y, IVec2(canonizedCoords.x(), size - 1 - canonizedCoords.z()));
if (canonizedCoords.y() == size)
return CubeFaceIntCoords(CUBEFACE_POSITIVE_Y, IVec2(canonizedCoords.x(), canonizedCoords.z()));
if (canonizedCoords.z() == -1)
return CubeFaceIntCoords(CUBEFACE_NEGATIVE_Z,
IVec2(size - 1 - canonizedCoords.x(), size - 1 - canonizedCoords.y()));
if (canonizedCoords.z() == size)
return CubeFaceIntCoords(CUBEFACE_POSITIVE_Z, IVec2(canonizedCoords.x(), size - 1 - canonizedCoords.y()));
DE_ASSERT(false);
return CubeFaceIntCoords(CUBEFACE_LAST, IVec2(-1));
}
static void getCubeLinearSamples(const ConstPixelBufferAccess (&faceAccesses)[CUBEFACE_LAST], CubeFace baseFace,
float u, float v, int depth, Vec4 (&dst)[4])
{
DE_ASSERT(faceAccesses[0].getWidth() == faceAccesses[0].getHeight());
int size = faceAccesses[0].getWidth();
int x0 = deFloorFloatToInt32(u - 0.5f);
int x1 = x0 + 1;
int y0 = deFloorFloatToInt32(v - 0.5f);
int y1 = y0 + 1;
IVec2 baseSampleCoords[4] = {IVec2(x0, y0), IVec2(x1, y0), IVec2(x0, y1), IVec2(x1, y1)};
Vec4 sampleColors[4];
bool hasBothCoordsOutOfBounds
[4]; //!< Whether correctCubeFace() returns CUBEFACE_LAST, i.e. both u and v are out of bounds.
// Find correct faces and coordinates for out-of-bounds sample coordinates.
for (int i = 0; i < 4; i++)
{
CubeFaceIntCoords coords = remapCubeEdgeCoords(CubeFaceIntCoords(baseFace, baseSampleCoords[i]), size);
hasBothCoordsOutOfBounds[i] = coords.face == CUBEFACE_LAST;
if (!hasBothCoordsOutOfBounds[i])
sampleColors[i] = lookup(faceAccesses[coords.face], coords.s, coords.t, depth);
}
// If a sample was out of bounds in both u and v, we get its color from the average of the three other samples.
// \note This averaging behavior is not required by the GLES3 spec (though it is recommended). GLES3 spec only
// requires that if the three other samples all have the same color, then the doubly-out-of-bounds sample
// must have this color as well.
{
int bothOutOfBoundsNdx = -1;
for (int i = 0; i < 4; i++)
{
if (hasBothCoordsOutOfBounds[i])
{
DE_ASSERT(bothOutOfBoundsNdx < 0); // Only one sample can be out of bounds in both u and v.
bothOutOfBoundsNdx = i;
}
}
if (bothOutOfBoundsNdx != -1)
{
sampleColors[bothOutOfBoundsNdx] = Vec4(0.0f);
for (int i = 0; i < 4; i++)
if (i != bothOutOfBoundsNdx)
sampleColors[bothOutOfBoundsNdx] += sampleColors[i];
sampleColors[bothOutOfBoundsNdx] = sampleColors[bothOutOfBoundsNdx] * (1.0f / 3.0f);
}
}
for (int i = 0; i < DE_LENGTH_OF_ARRAY(sampleColors); i++)
dst[i] = sampleColors[i];
}
// \todo [2014-02-19 pyry] Optimize faceAccesses
static Vec4 sampleCubeSeamlessLinear(const ConstPixelBufferAccess (&faceAccesses)[CUBEFACE_LAST], CubeFace baseFace,
const Sampler &sampler, float s, float t, int depth)
{
DE_ASSERT(faceAccesses[0].getWidth() == faceAccesses[0].getHeight());
int size = faceAccesses[0].getWidth();
// Non-normalized coordinates.
float u = s;
float v = t;
if (sampler.normalizedCoords)
{
u = unnormalize(sampler.wrapS, s, size);
v = unnormalize(sampler.wrapT, t, size);
}
// Get sample colors.
Vec4 sampleColors[4];
getCubeLinearSamples(faceAccesses, baseFace, u, v, depth, sampleColors);
// Interpolate.
float a = deFloatFrac(u - 0.5f);
float b = deFloatFrac(v - 0.5f);
return (sampleColors[0] * (1.0f - a) * (1.0f - b)) + (sampleColors[1] * (a) * (1.0f - b)) +
(sampleColors[2] * (1.0f - a) * (b)) + (sampleColors[3] * (a) * (b));
}
static Vec4 sampleLevelArrayCubeSeamless(const ConstPixelBufferAccess *const (&faces)[CUBEFACE_LAST], int numLevels,
CubeFace face, const Sampler &sampler, float s, float t, int depth, float lod,
ImageViewMinLodParams *minLodParams)
{
// minLodRelative is used to calculate the image level to sample from, when VK_EXT_image_view_min_lod extension is enabled.
// The value is relative to baseLevel as the Texture*View was created as the baseLevel being level[0].
const float minLodRelative =
(minLodParams != DE_NULL) ? getImageViewMinLod(minLodParams->minLod) - (float)minLodParams->baseLevel : 0.0f;
bool magnified = lod <= sampler.lodThreshold;
Sampler::FilterMode filterMode = magnified ? sampler.magFilter : sampler.minFilter;
// VK_EXT_image_view_min_lod: Integer Texel Coordinates case (with robustness2 supported)
if (minLodParams != DE_NULL && minLodParams->intTexCoord)
{
if (lod < deFloatFloor(minLodRelative) || lod >= (float)(numLevels - 1))
return Vec4(0.0f);
if (s < 0.0f || s > 1.0f || t < 0.0f || t > 1.0f)
return Vec4(0.0f);
}
switch (filterMode)
{
case Sampler::NEAREST:
{
bool isLinearMipmapMode = magnified && tcu::isSamplerMipmapModeLinear(sampler.minFilter);
const int maxLevel = (int)numLevels - 1;
const int level0 = isLinearMipmapMode ? (int)deFloatFloor(minLodRelative) :
deClamp32((int)deFloatCeil(minLodRelative + 0.5f) - 1, 0, maxLevel);
tcu::Vec4 t0 = sampleCubeSeamlessNearest(faces[face][level0], sampler, s, t, depth);
if (!isLinearMipmapMode)
return t0;
const float frac = deFloatFrac(minLodRelative);
const int level1 = de::min(level0 + 1, maxLevel);
tcu::Vec4 t1 = sampleCubeSeamlessNearest(faces[face][level1], sampler, s, t, depth);
return t0 * (1.0f - frac) + t1 * frac;
}
case Sampler::LINEAR:
{
bool cond =
sampler.minFilter == Sampler::NEAREST_MIPMAP_LINEAR || sampler.minFilter == Sampler::LINEAR_MIPMAP_LINEAR;
const int index = cond ? (int)deFloatFloor(minLodRelative) : ((int)deFloatCeil(minLodRelative + 0.5f) - 1u);
ConstPixelBufferAccess faceAccesses[CUBEFACE_LAST];
for (int i = 0; i < (int)CUBEFACE_LAST; i++)
faceAccesses[i] = faces[i][index];
Vec4 result = sampleCubeSeamlessLinear(faceAccesses, face, sampler, s, t, depth);
if (cond && ((index + 1) < numLevels) && deFloatFrac(minLodRelative) != 0.0f)
{
// In case of a minLodRelative value with fractional part, we need to ponderate the different sample of N level
// and sample for level N+1 accordingly.
result = result * (1.0f - deFloatFrac(minLodRelative));
ConstPixelBufferAccess faceAccessesNext[CUBEFACE_LAST];
for (int i = 0; i < (int)CUBEFACE_LAST; i++)
faceAccessesNext[i] = faces[i][index + 1];
result += sampleCubeSeamlessLinear(faceAccesses, face, sampler, s, t, depth) * deFloatFrac(minLodRelative);
}
return result;
}
case Sampler::NEAREST_MIPMAP_NEAREST:
case Sampler::LINEAR_MIPMAP_NEAREST:
{
if (minLodParams != DE_NULL && !minLodParams->intTexCoord)
lod = de::max(lod, minLodRelative);
int maxLevel = (int)numLevels - 1;
int level = deClamp32((int)deFloatCeil(lod + 0.5f) - 1, 0, maxLevel);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_NEAREST) ? Sampler::LINEAR : Sampler::NEAREST;
if (levelFilter == Sampler::NEAREST)
return sampleCubeSeamlessNearest(faces[face][level], sampler, s, t, depth);
else
{
DE_ASSERT(levelFilter == Sampler::LINEAR);
ConstPixelBufferAccess faceAccesses[CUBEFACE_LAST];
for (int i = 0; i < (int)CUBEFACE_LAST; i++)
faceAccesses[i] = faces[i][level];
return sampleCubeSeamlessLinear(faceAccesses, face, sampler, s, t, depth);
}
}
case Sampler::NEAREST_MIPMAP_LINEAR:
case Sampler::LINEAR_MIPMAP_LINEAR:
{
if (minLodParams != DE_NULL && !minLodParams->intTexCoord)
lod = de::max(lod, minLodRelative);
int maxLevel = (int)numLevels - 1;
int level0 = deClamp32((int)deFloatFloor(lod), 0, maxLevel);
int level1 = de::min(maxLevel, level0 + 1);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_LINEAR) ? Sampler::LINEAR : Sampler::NEAREST;
float f = deFloatFrac(lod);
Vec4 t0;
Vec4 t1;
if (levelFilter == Sampler::NEAREST)
{
t0 = sampleCubeSeamlessNearest(faces[face][level0], sampler, s, t, depth);
t1 = sampleCubeSeamlessNearest(faces[face][level1], sampler, s, t, depth);
}
else
{
DE_ASSERT(levelFilter == Sampler::LINEAR);
ConstPixelBufferAccess faceAccesses0[CUBEFACE_LAST];
ConstPixelBufferAccess faceAccesses1[CUBEFACE_LAST];
for (int i = 0; i < (int)CUBEFACE_LAST; i++)
{
faceAccesses0[i] = faces[i][level0];
faceAccesses1[i] = faces[i][level1];
}
t0 = sampleCubeSeamlessLinear(faceAccesses0, face, sampler, s, t, depth);
t1 = sampleCubeSeamlessLinear(faceAccesses1, face, sampler, s, t, depth);
}
return t0 * (1.0f - f) + t1 * f;
}
default:
DE_ASSERT(false);
return Vec4(0.0f);
}
}
static float sampleCubeSeamlessNearestCompare(const ConstPixelBufferAccess &faceAccess, const Sampler &sampler,
float ref, float s, float t, int depth = 0)
{
Sampler clampingSampler = sampler;
clampingSampler.wrapS = Sampler::CLAMP_TO_EDGE;
clampingSampler.wrapT = Sampler::CLAMP_TO_EDGE;
return faceAccess.sample2DCompare(clampingSampler, Sampler::NEAREST, ref, s, t, IVec3(0, 0, depth));
}
static float sampleCubeSeamlessLinearCompare(const ConstPixelBufferAccess (&faceAccesses)[CUBEFACE_LAST],
CubeFace baseFace, const Sampler &sampler, float ref, float s, float t)
{
DE_ASSERT(faceAccesses[0].getWidth() == faceAccesses[0].getHeight());
int size = faceAccesses[0].getWidth();
// Non-normalized coordinates.
float u = s;
float v = t;
if (sampler.normalizedCoords)
{
u = unnormalize(sampler.wrapS, s, size);
v = unnormalize(sampler.wrapT, t, size);
}
int x0 = deFloorFloatToInt32(u - 0.5f);
int x1 = x0 + 1;
int y0 = deFloorFloatToInt32(v - 0.5f);
int y1 = y0 + 1;
IVec2 baseSampleCoords[4] = {IVec2(x0, y0), IVec2(x1, y0), IVec2(x0, y1), IVec2(x1, y1)};
float sampleRes[4];
bool hasBothCoordsOutOfBounds
[4]; //!< Whether correctCubeFace() returns CUBEFACE_LAST, i.e. both u and v are out of bounds.
// Find correct faces and coordinates for out-of-bounds sample coordinates.
for (int i = 0; i < 4; i++)
{
CubeFaceIntCoords coords = remapCubeEdgeCoords(CubeFaceIntCoords(baseFace, baseSampleCoords[i]), size);
hasBothCoordsOutOfBounds[i] = coords.face == CUBEFACE_LAST;
if (!hasBothCoordsOutOfBounds[i])
{
const bool isFixedPointDepth = isFixedPointDepthTextureFormat(faceAccesses[coords.face].getFormat());
sampleRes[i] = execCompare(faceAccesses[coords.face].getPixel(coords.s, coords.t), sampler.compare,
sampler.compareChannel, ref, isFixedPointDepth);
}
}
// If a sample was out of bounds in both u and v, we get its color from the average of the three other samples.
// \note This averaging behavior is not required by the GLES3 spec (though it is recommended). GLES3 spec only
// requires that if the three other samples all have the same color, then the doubly-out-of-bounds sample
// must have this color as well.
{
int bothOutOfBoundsNdx = -1;
for (int i = 0; i < 4; i++)
{
if (hasBothCoordsOutOfBounds[i])
{
DE_ASSERT(bothOutOfBoundsNdx < 0); // Only one sample can be out of bounds in both u and v.
bothOutOfBoundsNdx = i;
}
}
if (bothOutOfBoundsNdx != -1)
{
sampleRes[bothOutOfBoundsNdx] = 0.0f;
for (int i = 0; i < 4; i++)
if (i != bothOutOfBoundsNdx)
sampleRes[bothOutOfBoundsNdx] += sampleRes[i];
sampleRes[bothOutOfBoundsNdx] = sampleRes[bothOutOfBoundsNdx] * (1.0f / 3.0f);
}
}
// Interpolate.
float a = deFloatFrac(u - 0.5f);
float b = deFloatFrac(v - 0.5f);
return (sampleRes[0] * (1.0f - a) * (1.0f - b)) + (sampleRes[1] * (a) * (1.0f - b)) +
(sampleRes[2] * (1.0f - a) * (b)) + (sampleRes[3] * (a) * (b));
}
static float sampleLevelArrayCubeSeamlessCompare(const ConstPixelBufferAccess *const (&faces)[CUBEFACE_LAST],
int numLevels, CubeFace face, const Sampler &sampler, float ref,
float s, float t, float lod)
{
bool magnified = lod <= sampler.lodThreshold;
Sampler::FilterMode filterMode = magnified ? sampler.magFilter : sampler.minFilter;
switch (filterMode)
{
case Sampler::NEAREST:
return sampleCubeSeamlessNearestCompare(faces[face][0], sampler, ref, s, t);
case Sampler::LINEAR:
{
ConstPixelBufferAccess faceAccesses[CUBEFACE_LAST];
for (int i = 0; i < (int)CUBEFACE_LAST; i++)
faceAccesses[i] = faces[i][0];
return sampleCubeSeamlessLinearCompare(faceAccesses, face, sampler, ref, s, t);
}
case Sampler::NEAREST_MIPMAP_NEAREST:
case Sampler::LINEAR_MIPMAP_NEAREST:
{
int maxLevel = (int)numLevels - 1;
int level = deClamp32((int)deFloatCeil(lod + 0.5f) - 1, 0, maxLevel);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_NEAREST) ? Sampler::LINEAR : Sampler::NEAREST;
if (levelFilter == Sampler::NEAREST)
return sampleCubeSeamlessNearestCompare(faces[face][level], sampler, ref, s, t);
else
{
DE_ASSERT(levelFilter == Sampler::LINEAR);
ConstPixelBufferAccess faceAccesses[CUBEFACE_LAST];
for (int i = 0; i < (int)CUBEFACE_LAST; i++)
faceAccesses[i] = faces[i][level];
return sampleCubeSeamlessLinearCompare(faceAccesses, face, sampler, ref, s, t);
}
}
case Sampler::NEAREST_MIPMAP_LINEAR:
case Sampler::LINEAR_MIPMAP_LINEAR:
{
int maxLevel = (int)numLevels - 1;
int level0 = deClamp32((int)deFloatFloor(lod), 0, maxLevel);
int level1 = de::min(maxLevel, level0 + 1);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_LINEAR) ? Sampler::LINEAR : Sampler::NEAREST;
float f = deFloatFrac(lod);
float t0;
float t1;
if (levelFilter == Sampler::NEAREST)
{
t0 = sampleCubeSeamlessNearestCompare(faces[face][level0], sampler, ref, s, t);
t1 = sampleCubeSeamlessNearestCompare(faces[face][level1], sampler, ref, s, t);
}
else
{
DE_ASSERT(levelFilter == Sampler::LINEAR);
ConstPixelBufferAccess faceAccesses0[CUBEFACE_LAST];
ConstPixelBufferAccess faceAccesses1[CUBEFACE_LAST];
for (int i = 0; i < (int)CUBEFACE_LAST; i++)
{
faceAccesses0[i] = faces[i][level0];
faceAccesses1[i] = faces[i][level1];
}
t0 = sampleCubeSeamlessLinearCompare(faceAccesses0, face, sampler, ref, s, t);
t1 = sampleCubeSeamlessLinearCompare(faceAccesses1, face, sampler, ref, s, t);
}
return t0 * (1.0f - f) + t1 * f;
}
default:
DE_ASSERT(false);
return 0.0f;
}
}
// Cube map array sampling
static inline ConstPixelBufferAccess getCubeArrayFaceAccess(const ConstPixelBufferAccess *const levels, int levelNdx,
int slice, CubeFace face)
{
const ConstPixelBufferAccess &level = levels[levelNdx];
const int depth = (slice * 6) + getCubeArrayFaceIndex(face);
return getSubregion(level, 0, 0, depth, level.getWidth(), level.getHeight(), 1);
}
static Vec4 sampleCubeArraySeamless(const ConstPixelBufferAccess *const levels, int numLevels, int slice, CubeFace face,
const Sampler &sampler, float s, float t, float lod)
{
const int faceDepth = (slice * 6) + getCubeArrayFaceIndex(face);
const bool magnified = lod <= sampler.lodThreshold;
const Sampler::FilterMode filterMode = magnified ? sampler.magFilter : sampler.minFilter;
switch (filterMode)
{
case Sampler::NEAREST:
return sampleCubeSeamlessNearest(levels[0], sampler, s, t, faceDepth);
case Sampler::LINEAR:
{
ConstPixelBufferAccess faceAccesses[CUBEFACE_LAST];
for (int i = 0; i < (int)CUBEFACE_LAST; i++)
faceAccesses[i] = getCubeArrayFaceAccess(levels, 0, slice, (CubeFace)i);
return sampleCubeSeamlessLinear(faceAccesses, face, sampler, s, t, 0);
}
case Sampler::NEAREST_MIPMAP_NEAREST:
case Sampler::LINEAR_MIPMAP_NEAREST:
{
int maxLevel = (int)numLevels - 1;
int level = deClamp32((int)deFloatCeil(lod + 0.5f) - 1, 0, maxLevel);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_NEAREST) ? Sampler::LINEAR : Sampler::NEAREST;
if (levelFilter == Sampler::NEAREST)
return sampleCubeSeamlessNearest(levels[level], sampler, s, t, faceDepth);
else
{
DE_ASSERT(levelFilter == Sampler::LINEAR);
ConstPixelBufferAccess faceAccesses[CUBEFACE_LAST];
for (int i = 0; i < (int)CUBEFACE_LAST; i++)
faceAccesses[i] = getCubeArrayFaceAccess(levels, level, slice, (CubeFace)i);
return sampleCubeSeamlessLinear(faceAccesses, face, sampler, s, t, 0);
}
}
case Sampler::NEAREST_MIPMAP_LINEAR:
case Sampler::LINEAR_MIPMAP_LINEAR:
{
int maxLevel = (int)numLevels - 1;
int level0 = deClamp32((int)deFloatFloor(lod), 0, maxLevel);
int level1 = de::min(maxLevel, level0 + 1);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_LINEAR) ? Sampler::LINEAR : Sampler::NEAREST;
float f = deFloatFrac(lod);
Vec4 t0;
Vec4 t1;
if (levelFilter == Sampler::NEAREST)
{
t0 = sampleCubeSeamlessNearest(levels[level0], sampler, s, t, faceDepth);
t1 = sampleCubeSeamlessNearest(levels[level1], sampler, s, t, faceDepth);
}
else
{
DE_ASSERT(levelFilter == Sampler::LINEAR);
ConstPixelBufferAccess faceAccesses0[CUBEFACE_LAST];
ConstPixelBufferAccess faceAccesses1[CUBEFACE_LAST];
for (int i = 0; i < (int)CUBEFACE_LAST; i++)
{
faceAccesses0[i] = getCubeArrayFaceAccess(levels, level0, slice, (CubeFace)i);
faceAccesses1[i] = getCubeArrayFaceAccess(levels, level1, slice, (CubeFace)i);
}
t0 = sampleCubeSeamlessLinear(faceAccesses0, face, sampler, s, t, 0);
t1 = sampleCubeSeamlessLinear(faceAccesses1, face, sampler, s, t, 0);
}
return t0 * (1.0f - f) + t1 * f;
}
default:
DE_ASSERT(false);
return Vec4(0.0f);
}
}
static float sampleCubeArraySeamlessCompare(const ConstPixelBufferAccess *const levels, int numLevels, int slice,
CubeFace face, const Sampler &sampler, float ref, float s, float t,
float lod)
{
const int faceDepth = (slice * 6) + getCubeArrayFaceIndex(face);
const bool magnified = lod <= sampler.lodThreshold;
Sampler::FilterMode filterMode = magnified ? sampler.magFilter : sampler.minFilter;
switch (filterMode)
{
case Sampler::NEAREST:
return sampleCubeSeamlessNearestCompare(levels[0], sampler, ref, s, t, faceDepth);
case Sampler::LINEAR:
{
ConstPixelBufferAccess faceAccesses[CUBEFACE_LAST];
for (int i = 0; i < (int)CUBEFACE_LAST; i++)
faceAccesses[i] = getCubeArrayFaceAccess(levels, 0, slice, (CubeFace)i);
return sampleCubeSeamlessLinearCompare(faceAccesses, face, sampler, ref, s, t);
}
case Sampler::NEAREST_MIPMAP_NEAREST:
case Sampler::LINEAR_MIPMAP_NEAREST:
{
int maxLevel = (int)numLevels - 1;
int level = deClamp32((int)deFloatCeil(lod + 0.5f) - 1, 0, maxLevel);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_NEAREST) ? Sampler::LINEAR : Sampler::NEAREST;
if (levelFilter == Sampler::NEAREST)
return sampleCubeSeamlessNearestCompare(levels[level], sampler, ref, s, t, faceDepth);
else
{
DE_ASSERT(levelFilter == Sampler::LINEAR);
ConstPixelBufferAccess faceAccesses[CUBEFACE_LAST];
for (int i = 0; i < (int)CUBEFACE_LAST; i++)
faceAccesses[i] = getCubeArrayFaceAccess(levels, level, slice, (CubeFace)i);
return sampleCubeSeamlessLinearCompare(faceAccesses, face, sampler, ref, s, t);
}
}
case Sampler::NEAREST_MIPMAP_LINEAR:
case Sampler::LINEAR_MIPMAP_LINEAR:
{
int maxLevel = (int)numLevels - 1;
int level0 = deClamp32((int)deFloatFloor(lod), 0, maxLevel);
int level1 = de::min(maxLevel, level0 + 1);
Sampler::FilterMode levelFilter =
(filterMode == Sampler::LINEAR_MIPMAP_LINEAR) ? Sampler::LINEAR : Sampler::NEAREST;
float f = deFloatFrac(lod);
float t0;
float t1;
if (levelFilter == Sampler::NEAREST)
{
t0 = sampleCubeSeamlessNearestCompare(levels[level0], sampler, ref, s, t, faceDepth);
t1 = sampleCubeSeamlessNearestCompare(levels[level1], sampler, ref, s, t, faceDepth);
}
else
{
DE_ASSERT(levelFilter == Sampler::LINEAR);
ConstPixelBufferAccess faceAccesses0[CUBEFACE_LAST];
ConstPixelBufferAccess faceAccesses1[CUBEFACE_LAST];
for (int i = 0; i < (int)CUBEFACE_LAST; i++)
{
faceAccesses0[i] = getCubeArrayFaceAccess(levels, level0, slice, (CubeFace)i);
faceAccesses1[i] = getCubeArrayFaceAccess(levels, level1, slice, (CubeFace)i);
}
t0 = sampleCubeSeamlessLinearCompare(faceAccesses0, face, sampler, ref, s, t);
t1 = sampleCubeSeamlessLinearCompare(faceAccesses1, face, sampler, ref, s, t);
}
return t0 * (1.0f - f) + t1 * f;
}
default:
DE_ASSERT(false);
return 0.0f;
}
}
inline int computeMipPyramidLevels(int size)
{
return deLog2Floor32(size) + 1;
}
inline int computeMipPyramidLevels(int width, int height)
{
return deLog2Floor32(de::max(width, height)) + 1;
}
inline int computeMipPyramidLevels(int width, int height, int depth)
{
return deLog2Floor32(de::max(width, de::max(height, depth))) + 1;
}
inline int getMipPyramidLevelSize(int baseLevelSize, int levelNdx)
{
return de::max(baseLevelSize >> levelNdx, 1);
}
// TextureLevelPyramid
TextureLevelPyramid::TextureLevelPyramid(const TextureFormat &format, int numLevels)
: m_format(format)
, m_data(numLevels)
, m_access(numLevels)
{
}
TextureLevelPyramid::TextureLevelPyramid(const TextureLevelPyramid &other)
: m_format(other.m_format)
, m_data(other.getNumLevels())
, m_access(other.getNumLevels())
{
for (int levelNdx = 0; levelNdx < other.getNumLevels(); levelNdx++)
{
if (!other.isLevelEmpty(levelNdx))
{
const tcu::ConstPixelBufferAccess &srcLevel = other.getLevel(levelNdx);
m_data[levelNdx] = other.m_data[levelNdx];
m_access[levelNdx] = PixelBufferAccess(srcLevel.getFormat(), srcLevel.getWidth(), srcLevel.getHeight(),
srcLevel.getDepth(), m_data[levelNdx].getPtr());
}
}
}
TextureLevelPyramid &TextureLevelPyramid::operator=(const TextureLevelPyramid &other)
{
if (this == &other)
return *this;
m_format = other.m_format;
m_data.resize(other.getNumLevels());
m_access.resize(other.getNumLevels());
for (int levelNdx = 0; levelNdx < other.getNumLevels(); levelNdx++)
{
if (!other.isLevelEmpty(levelNdx))
{
const tcu::ConstPixelBufferAccess &srcLevel = other.getLevel(levelNdx);
m_data[levelNdx] = other.m_data[levelNdx];
m_access[levelNdx] = PixelBufferAccess(srcLevel.getFormat(), srcLevel.getWidth(), srcLevel.getHeight(),
srcLevel.getDepth(), m_data[levelNdx].getPtr());
}
else if (!isLevelEmpty(levelNdx))
clearLevel(levelNdx);
}
return *this;
}
TextureLevelPyramid::~TextureLevelPyramid(void)
{
}
void TextureLevelPyramid::allocLevel(int levelNdx, int width, int height, int depth)
{
const int size = m_format.getPixelSize() * width * height * depth;
DE_ASSERT(isLevelEmpty(levelNdx));
m_data[levelNdx].setStorage(size);
m_access[levelNdx] = PixelBufferAccess(m_format, width, height, depth, m_data[levelNdx].getPtr());
}
void TextureLevelPyramid::clearLevel(int levelNdx)
{
DE_ASSERT(!isLevelEmpty(levelNdx));
m_data[levelNdx].clear();
m_access[levelNdx] = PixelBufferAccess();
}
// Texture1D
Texture1D::Texture1D(const TextureFormat &format, int width)
: TextureLevelPyramid(format, computeMipPyramidLevels(width))
, m_width(width)
, m_view(getNumLevels(), getLevels())
{
}
Texture1D::Texture1D(const Texture1D &other)
: TextureLevelPyramid(other)
, m_width(other.m_width)
, m_view(getNumLevels(), getLevels())
{
}
Texture1D &Texture1D::operator=(const Texture1D &other)
{
if (this == &other)
return *this;
TextureLevelPyramid::operator=(other);
m_width = other.m_width;
m_view = Texture1DView(getNumLevels(), getLevels());
return *this;
}
Texture1D::~Texture1D(void)
{
}
void Texture1D::allocLevel(int levelNdx)
{
DE_ASSERT(de::inBounds(levelNdx, 0, getNumLevels()));
const int width = getMipPyramidLevelSize(m_width, levelNdx);
TextureLevelPyramid::allocLevel(levelNdx, width, 1, 1);
}
// Texture2D
Texture2D::Texture2D(const TextureFormat &format, int width, int height, bool es2)
: TextureLevelPyramid(format, computeMipPyramidLevels(width, height))
, m_yuvTextureUsed(false)
, m_width(width)
, m_height(height)
, m_view(getNumLevels(), getLevels(), es2)
{
}
Texture2D::Texture2D(const TextureFormat &format, int width, int height, int mipmaps)
: TextureLevelPyramid(format, mipmaps)
, m_yuvTextureUsed(false)
, m_width(width)
, m_height(height)
, m_view(getNumLevels(), getLevels())
{
}
Texture2D::Texture2D(const Texture2D &other)
: TextureLevelPyramid(other)
, m_yuvTextureUsed(other.m_yuvTextureUsed)
, m_width(other.m_width)
, m_height(other.m_height)
, m_view(getNumLevels(), getLevels(), other.getView().isES2())
{
}
Texture2D &Texture2D::operator=(const Texture2D &other)
{
if (this == &other)
return *this;
TextureLevelPyramid::operator=(other);
m_width = other.m_width;
m_height = other.m_height;
m_view = Texture2DView(getNumLevels(), getLevels(), other.getView().isES2());
m_yuvTextureUsed = other.m_yuvTextureUsed;
return *this;
}
Texture2D::~Texture2D(void)
{
}
void Texture2D::allocLevel(int levelNdx)
{
DE_ASSERT(de::inBounds(levelNdx, 0, getNumLevels()));
const int width = getMipPyramidLevelSize(m_width, levelNdx);
const int height = getMipPyramidLevelSize(m_height, levelNdx);
TextureLevelPyramid::allocLevel(levelNdx, width, height, 1);
}
// TextureCubeView
TextureCubeView::TextureCubeView(void) : m_numLevels(0), m_es2(false), m_minLodParams(DE_NULL)
{
for (int ndx = 0; ndx < CUBEFACE_LAST; ndx++)
m_levels[ndx] = DE_NULL;
}
TextureCubeView::TextureCubeView(int numLevels, const ConstPixelBufferAccess *const (&levels)[CUBEFACE_LAST], bool es2,
ImageViewMinLodParams *minLodParams)
: m_numLevels(numLevels)
, m_es2(es2)
, m_minLodParams(minLodParams)
{
for (int ndx = 0; ndx < CUBEFACE_LAST; ndx++)
m_levels[ndx] = levels[ndx];
}
tcu::Vec4 TextureCubeView::sample(const Sampler &sampler, float s, float t, float r, float lod) const
{
DE_ASSERT(sampler.compare == Sampler::COMPAREMODE_NONE);
// Computes (face, s, t).
const CubeFaceFloatCoords coords = getCubeFaceCoords(Vec3(s, t, r));
if (sampler.seamlessCubeMap)
return sampleLevelArrayCubeSeamless(m_levels, m_numLevels, coords.face, sampler, coords.s, coords.t,
0 /* depth */, lod, m_minLodParams);
else
return sampleLevelArray2D(m_levels[coords.face], m_numLevels, sampler, coords.s, coords.t, 0 /* depth */, lod,
m_es2, m_minLodParams);
}
float TextureCubeView::sampleCompare(const Sampler &sampler, float ref, float s, float t, float r, float lod) const
{
DE_ASSERT(sampler.compare != Sampler::COMPAREMODE_NONE);
// Computes (face, s, t).
const CubeFaceFloatCoords coords = getCubeFaceCoords(Vec3(s, t, r));
if (sampler.seamlessCubeMap)
return sampleLevelArrayCubeSeamlessCompare(m_levels, m_numLevels, coords.face, sampler, ref, coords.s, coords.t,
lod);
else
return sampleLevelArray2DCompare(m_levels[coords.face], m_numLevels, sampler, ref, coords.s, coords.t, lod,
IVec3(0, 0, 0));
}
Vec4 TextureCubeView::gather(const Sampler &sampler, float s, float t, float r, int componentNdx) const
{
DE_ASSERT(sampler.compare == Sampler::COMPAREMODE_NONE);
ConstPixelBufferAccess faceAccesses[CUBEFACE_LAST];
for (int i = 0; i < (int)CUBEFACE_LAST; i++)
faceAccesses[i] = m_levels[i][0];
const CubeFaceFloatCoords coords = getCubeFaceCoords(Vec3(s, t, r));
const int size = faceAccesses[0].getWidth();
// Non-normalized coordinates.
float u = coords.s;
float v = coords.t;
if (sampler.normalizedCoords)
{
u = unnormalize(sampler.wrapS, coords.s, size);
v = unnormalize(sampler.wrapT, coords.t, size);
}
Vec4 sampleColors[4];
getCubeLinearSamples(faceAccesses, coords.face, u, v, 0, sampleColors);
const int sampleIndices[4] = {2, 3, 1, 0}; // \note Gather returns the samples in a non-obvious order.
Vec4 result;
for (int i = 0; i < 4; i++)
result[i] = sampleColors[sampleIndices[i]][componentNdx];
return result;
}
Vec4 TextureCubeView::gatherCompare(const Sampler &sampler, float ref, float s, float t, float r) const
{
DE_ASSERT(sampler.compare != Sampler::COMPAREMODE_NONE);
DE_ASSERT(m_levels[0][0].getFormat().order == TextureFormat::D ||
m_levels[0][0].getFormat().order == TextureFormat::DS);
DE_ASSERT(sampler.compareChannel == 0);
Sampler noCompareSampler = sampler;
noCompareSampler.compare = Sampler::COMPAREMODE_NONE;
const Vec4 gathered = gather(noCompareSampler, s, t, r, 0 /* component 0: depth */);
const bool isFixedPoint = isFixedPointDepthTextureFormat(m_levels[0][0].getFormat());
Vec4 result;
for (int i = 0; i < 4; i++)
result[i] = execCompare(gathered, sampler.compare, i, ref, isFixedPoint);
return result;
}
// TextureCube
TextureCube::TextureCube(const TextureFormat &format, int size, bool es2) : m_format(format), m_size(size)
{
const int numLevels = computeMipPyramidLevels(m_size);
const ConstPixelBufferAccess *levels[CUBEFACE_LAST];
for (int face = 0; face < CUBEFACE_LAST; face++)
{
m_data[face].resize(numLevels);
m_access[face].resize(numLevels);
levels[face] = &m_access[face][0];
}
m_view = TextureCubeView(numLevels, levels, es2);
}
TextureCube::TextureCube(const TextureCube &other) : m_format(other.m_format), m_size(other.m_size)
{
const int numLevels = computeMipPyramidLevels(m_size);
const ConstPixelBufferAccess *levels[CUBEFACE_LAST];
for (int face = 0; face < CUBEFACE_LAST; face++)
{
m_data[face].resize(numLevels);
m_access[face].resize(numLevels);
levels[face] = &m_access[face][0];
}
m_view = TextureCubeView(numLevels, levels, other.getView().isES2());
for (int levelNdx = 0; levelNdx < numLevels; levelNdx++)
{
for (int face = 0; face < CUBEFACE_LAST; face++)
{
if (!other.isLevelEmpty((CubeFace)face, levelNdx))
{
allocLevel((CubeFace)face, levelNdx);
copy(getLevelFace(levelNdx, (CubeFace)face), other.getLevelFace(levelNdx, (CubeFace)face));
}
}
}
}
TextureCube &TextureCube::operator=(const TextureCube &other)
{
if (this == &other)
return *this;
const int numLevels = computeMipPyramidLevels(other.m_size);
const ConstPixelBufferAccess *levels[CUBEFACE_LAST];
for (int face = 0; face < CUBEFACE_LAST; face++)
{
m_data[face].resize(numLevels);
m_access[face].resize(numLevels);
levels[face] = &m_access[face][0];
}
m_format = other.m_format;
m_size = other.m_size;
m_view = TextureCubeView(numLevels, levels, other.getView().isES2());
for (int levelNdx = 0; levelNdx < numLevels; levelNdx++)
{
for (int face = 0; face < CUBEFACE_LAST; face++)
{
if (!isLevelEmpty((CubeFace)face, levelNdx))
clearLevel((CubeFace)face, levelNdx);
if (!other.isLevelEmpty((CubeFace)face, levelNdx))
{
allocLevel((CubeFace)face, levelNdx);
copy(getLevelFace(levelNdx, (CubeFace)face), other.getLevelFace(levelNdx, (CubeFace)face));
}
}
}
return *this;
}
TextureCube::~TextureCube(void)
{
}
void TextureCube::allocLevel(tcu::CubeFace face, int levelNdx)
{
const int size = getMipPyramidLevelSize(m_size, levelNdx);
const int dataSize = m_format.getPixelSize() * size * size;
DE_ASSERT(isLevelEmpty(face, levelNdx));
m_data[face][levelNdx].setStorage(dataSize);
m_access[face][levelNdx] = PixelBufferAccess(m_format, size, size, 1, m_data[face][levelNdx].getPtr());
}
void TextureCube::clearLevel(tcu::CubeFace face, int levelNdx)
{
DE_ASSERT(!isLevelEmpty(face, levelNdx));
m_data[face][levelNdx].clear();
m_access[face][levelNdx] = PixelBufferAccess();
}
// Texture1DArrayView
Texture1DArrayView::Texture1DArrayView(int numLevels, const ConstPixelBufferAccess *levels, bool es2 DE_UNUSED_ATTR,
ImageViewMinLodParams *minLodParams DE_UNUSED_ATTR)
: m_numLevels(numLevels)
, m_levels(levels)
{
}
inline int Texture1DArrayView::selectLayer(float t) const
{
DE_ASSERT(m_numLevels > 0 && m_levels);
return de::clamp(deFloorFloatToInt32(t + 0.5f), 0, m_levels[0].getHeight() - 1);
}
Vec4 Texture1DArrayView::sample(const Sampler &sampler, float s, float t, float lod) const
{
return sampleLevelArray1D(m_levels, m_numLevels, sampler, s, selectLayer(t), lod);
}
Vec4 Texture1DArrayView::sampleOffset(const Sampler &sampler, float s, float t, float lod, int32_t offset) const
{
return sampleLevelArray1DOffset(m_levels, m_numLevels, sampler, s, lod, IVec2(offset, selectLayer(t)));
}
float Texture1DArrayView::sampleCompare(const Sampler &sampler, float ref, float s, float t, float lod) const
{
return sampleLevelArray1DCompare(m_levels, m_numLevels, sampler, ref, s, lod, IVec2(0, selectLayer(t)));
}
float Texture1DArrayView::sampleCompareOffset(const Sampler &sampler, float ref, float s, float t, float lod,
int32_t offset) const
{
return sampleLevelArray1DCompare(m_levels, m_numLevels, sampler, ref, s, lod, IVec2(offset, selectLayer(t)));
}
// Texture2DArrayView
Texture2DArrayView::Texture2DArrayView(int numLevels, const ConstPixelBufferAccess *levels, bool es2 DE_UNUSED_ATTR,
ImageViewMinLodParams *minLodParams DE_UNUSED_ATTR)
: m_numLevels(numLevels)
, m_levels(levels)
{
}
inline int Texture2DArrayView::selectLayer(float r) const
{
DE_ASSERT(m_numLevels > 0 && m_levels);
return de::clamp(deFloorFloatToInt32(r + 0.5f), 0, m_levels[0].getDepth() - 1);
}
Vec4 Texture2DArrayView::sample(const Sampler &sampler, float s, float t, float r, float lod) const
{
return sampleLevelArray2D(m_levels, m_numLevels, sampler, s, t, selectLayer(r), lod);
}
float Texture2DArrayView::sampleCompare(const Sampler &sampler, float ref, float s, float t, float r, float lod) const
{
return sampleLevelArray2DCompare(m_levels, m_numLevels, sampler, ref, s, t, lod, IVec3(0, 0, selectLayer(r)));
}
Vec4 Texture2DArrayView::sampleOffset(const Sampler &sampler, float s, float t, float r, float lod,
const IVec2 &offset) const
{
return sampleLevelArray2DOffset(m_levels, m_numLevels, sampler, s, t, lod,
IVec3(offset.x(), offset.y(), selectLayer(r)));
}
float Texture2DArrayView::sampleCompareOffset(const Sampler &sampler, float ref, float s, float t, float r, float lod,
const IVec2 &offset) const
{
return sampleLevelArray2DCompare(m_levels, m_numLevels, sampler, ref, s, t, lod,
IVec3(offset.x(), offset.y(), selectLayer(r)));
}
Vec4 Texture2DArrayView::gatherOffsets(const Sampler &sampler, float s, float t, float r, int componentNdx,
const IVec2 (&offsets)[4]) const
{
return gatherArray2DOffsets(m_levels[0], sampler, s, t, selectLayer(r), componentNdx, offsets);
}
Vec4 Texture2DArrayView::gatherOffsetsCompare(const Sampler &sampler, float ref, float s, float t, float r,
const IVec2 (&offsets)[4]) const
{
return gatherArray2DOffsetsCompare(m_levels[0], sampler, ref, s, t, selectLayer(r), offsets);
}
// Texture1DArray
Texture1DArray::Texture1DArray(const TextureFormat &format, int width, int numLayers)
: TextureLevelPyramid(format, computeMipPyramidLevels(width))
, m_width(width)
, m_numLayers(numLayers)
, m_view(getNumLevels(), getLevels())
{
}
Texture1DArray::Texture1DArray(const Texture1DArray &other)
: TextureLevelPyramid(other)
, m_width(other.m_width)
, m_numLayers(other.m_numLayers)
, m_view(getNumLevels(), getLevels())
{
}
Texture1DArray &Texture1DArray::operator=(const Texture1DArray &other)
{
if (this == &other)
return *this;
TextureLevelPyramid::operator=(other);
m_width = other.m_width;
m_numLayers = other.m_numLayers;
m_view = Texture1DArrayView(getNumLevels(), getLevels());
return *this;
}
Texture1DArray::~Texture1DArray(void)
{
}
void Texture1DArray::allocLevel(int levelNdx)
{
DE_ASSERT(de::inBounds(levelNdx, 0, getNumLevels()));
const int width = getMipPyramidLevelSize(m_width, levelNdx);
TextureLevelPyramid::allocLevel(levelNdx, width, m_numLayers, 1);
}
// Texture2DArray
Texture2DArray::Texture2DArray(const TextureFormat &format, int width, int height, int numLayers)
: TextureLevelPyramid(format, computeMipPyramidLevels(width, height))
, m_width(width)
, m_height(height)
, m_numLayers(numLayers)
, m_view(getNumLevels(), getLevels())
{
}
Texture2DArray::Texture2DArray(const Texture2DArray &other)
: TextureLevelPyramid(other)
, m_width(other.m_width)
, m_height(other.m_height)
, m_numLayers(other.m_numLayers)
, m_view(getNumLevels(), getLevels())
{
}
Texture2DArray &Texture2DArray::operator=(const Texture2DArray &other)
{
if (this == &other)
return *this;
TextureLevelPyramid::operator=(other);
m_width = other.m_width;
m_height = other.m_height;
m_numLayers = other.m_numLayers;
m_view = Texture2DArrayView(getNumLevels(), getLevels());
return *this;
}
Texture2DArray::~Texture2DArray(void)
{
}
void Texture2DArray::allocLevel(int levelNdx)
{
DE_ASSERT(de::inBounds(levelNdx, 0, getNumLevels()));
const int width = getMipPyramidLevelSize(m_width, levelNdx);
const int height = getMipPyramidLevelSize(m_height, levelNdx);
TextureLevelPyramid::allocLevel(levelNdx, width, height, m_numLayers);
}
// Texture3DView
Texture3DView::Texture3DView(int numLevels, const ConstPixelBufferAccess *levels, bool es2,
ImageViewMinLodParams *minLodParams)
: m_numLevels(numLevels)
, m_levels(levels)
, m_es2(es2)
, m_minLodParams(minLodParams)
{
}
// Texture3D
Texture3D::Texture3D(const TextureFormat &format, int width, int height, int depth)
: TextureLevelPyramid(format, computeMipPyramidLevels(width, height, depth))
, m_width(width)
, m_height(height)
, m_depth(depth)
, m_view(getNumLevels(), getLevels())
{
}
Texture3D::Texture3D(const Texture3D &other)
: TextureLevelPyramid(other)
, m_width(other.m_width)
, m_height(other.m_height)
, m_depth(other.m_depth)
, m_view(getNumLevels(), getLevels())
{
}
Texture3D &Texture3D::operator=(const Texture3D &other)
{
if (this == &other)
return *this;
TextureLevelPyramid::operator=(other);
m_width = other.m_width;
m_height = other.m_height;
m_depth = other.m_depth;
m_view = Texture3DView(getNumLevels(), getLevels());
return *this;
}
Texture3D::~Texture3D(void)
{
}
void Texture3D::allocLevel(int levelNdx)
{
DE_ASSERT(de::inBounds(levelNdx, 0, getNumLevels()));
const int width = getMipPyramidLevelSize(m_width, levelNdx);
const int height = getMipPyramidLevelSize(m_height, levelNdx);
const int depth = getMipPyramidLevelSize(m_depth, levelNdx);
TextureLevelPyramid::allocLevel(levelNdx, width, height, depth);
}
// TextureCubeArrayView
TextureCubeArrayView::TextureCubeArrayView(int numLevels, const ConstPixelBufferAccess *levels, bool es2 DE_UNUSED_ATTR,
ImageViewMinLodParams *minLodParams DE_UNUSED_ATTR)
: m_numLevels(numLevels)
, m_levels(levels)
{
}
inline int TextureCubeArrayView::selectLayer(float q) const
{
DE_ASSERT(m_numLevels > 0 && m_levels);
DE_ASSERT((m_levels[0].getDepth() % 6) == 0);
return de::clamp(deFloorFloatToInt32(q + 0.5f), 0, (m_levels[0].getDepth() / 6) - 1);
}
tcu::Vec4 TextureCubeArrayView::sample(const Sampler &sampler, float s, float t, float r, float q, float lod) const
{
const CubeFaceFloatCoords coords = getCubeFaceCoords(Vec3(s, t, r));
const int layer = selectLayer(q);
const int faceDepth = (layer * 6) + getCubeArrayFaceIndex(coords.face);
DE_ASSERT(sampler.compare == Sampler::COMPAREMODE_NONE);
if (sampler.seamlessCubeMap)
return sampleCubeArraySeamless(m_levels, m_numLevels, layer, coords.face, sampler, coords.s, coords.t, lod);
else
return sampleLevelArray2D(m_levels, m_numLevels, sampler, coords.s, coords.t, faceDepth, lod);
}
float TextureCubeArrayView::sampleCompare(const Sampler &sampler, float ref, float s, float t, float r, float q,
float lod) const
{
const CubeFaceFloatCoords coords = getCubeFaceCoords(Vec3(s, t, r));
const int layer = selectLayer(q);
const int faceDepth = (layer * 6) + getCubeArrayFaceIndex(coords.face);
DE_ASSERT(sampler.compare != Sampler::COMPAREMODE_NONE);
if (sampler.seamlessCubeMap)
return sampleCubeArraySeamlessCompare(m_levels, m_numLevels, layer, coords.face, sampler, ref, coords.s,
coords.t, lod);
else
return sampleLevelArray2DCompare(m_levels, m_numLevels, sampler, ref, coords.s, coords.t, lod,
IVec3(0, 0, faceDepth));
}
// TextureCubeArray
TextureCubeArray::TextureCubeArray(const TextureFormat &format, int size, int depth)
: TextureLevelPyramid(format, computeMipPyramidLevels(size))
, m_size(size)
, m_depth(depth)
, m_view(getNumLevels(), getLevels())
{
DE_ASSERT(m_depth % 6 == 0);
}
TextureCubeArray::TextureCubeArray(const TextureCubeArray &other)
: TextureLevelPyramid(other)
, m_size(other.m_size)
, m_depth(other.m_depth)
, m_view(getNumLevels(), getLevels())
{
DE_ASSERT(m_depth % 6 == 0);
}
TextureCubeArray &TextureCubeArray::operator=(const TextureCubeArray &other)
{
if (this == &other)
return *this;
TextureLevelPyramid::operator=(other);
m_size = other.m_size;
m_depth = other.m_depth;
m_view = TextureCubeArrayView(getNumLevels(), getLevels());
DE_ASSERT(m_depth % 6 == 0);
return *this;
}
TextureCubeArray::~TextureCubeArray(void)
{
}
void TextureCubeArray::allocLevel(int levelNdx)
{
DE_ASSERT(de::inBounds(levelNdx, 0, getNumLevels()));
const int size = getMipPyramidLevelSize(m_size, levelNdx);
TextureLevelPyramid::allocLevel(levelNdx, size, size, m_depth);
}
std::ostream &operator<<(std::ostream &str, TextureFormat::ChannelOrder order)
{
const char *const orderStrings[] = {"R", "A", "I", "L", "LA", "RG", "RA",
"RGB", "RGBA", "ARGB", "ABGR", "BGR", "BGRA",
"sR", "sRG", "sRGB", "sRGBA", "sBGR", "sBGRA",
"D", "S", "DS"};
return str << de::getSizedArrayElement<TextureFormat::CHANNELORDER_LAST>(orderStrings, order);
}
std::ostream &operator<<(std::ostream &str, TextureFormat::ChannelType type)
{
DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
const char *const typeStrings[] = {"SNORM_INT8",
"SNORM_INT16",
"SNORM_INT32",
"UNORM_INT8",
"UNORM_INT16",
"UNORM_INT24",
"UNORM_INT32",
"UNORM_BYTE_44",
"UNORM_SHORT_565",
"UNORM_SHORT_555",
"UNORM_SHORT_4444",
"UNORM_SHORT_5551",
"UNORM_SHORT_1555",
"UNORM_INT_101010",
"SNORM_INT_1010102_REV",
"UNORM_INT_1010102_REV",
"UNSIGNED_BYTE_44",
"UNSIGNED_SHORT_565",
"UNSIGNED_SHORT_4444",
"UNSIGNED_SHORT_5551",
"SIGNED_INT_1010102_REV",
"UNSIGNED_INT_1010102_REV",
"UNSIGNED_INT_11F_11F_10F_REV",
"UNSIGNED_INT_999_E5_REV",
"UNSIGNED_INT_16_8_8",
"UNSIGNED_INT_24_8",
"UNSIGNED_INT_24_8_REV",
"SIGNED_INT8",
"SIGNED_INT16",
"SIGNED_INT32",
"SIGNED_INT64",
"UNSIGNED_INT8",
"UNSIGNED_INT16",
"UNSIGNED_INT24",
"UNSIGNED_INT32",
"UNSIGNED_INT64",
"HALF_FLOAT",
"FLOAT",
"FLOAT64",
"FLOAT_UNSIGNED_INT_24_8_REV",
"UNORM_SHORT_10",
"UNORM_SHORT_12",
"USCALED_INT8",
"USCALED_INT16",
"SSCALED_INT8",
"SSCALED_INT16",
"USCALED_INT_1010102_REV",
"SSCALED_INT_1010102_REV"};
return str << de::getSizedArrayElement<TextureFormat::CHANNELTYPE_LAST>(typeStrings, type);
}
std::ostream &operator<<(std::ostream &str, CubeFace face)
{
switch (face)
{
case CUBEFACE_NEGATIVE_X:
return str << "CUBEFACE_NEGATIVE_X";
case CUBEFACE_POSITIVE_X:
return str << "CUBEFACE_POSITIVE_X";
case CUBEFACE_NEGATIVE_Y:
return str << "CUBEFACE_NEGATIVE_Y";
case CUBEFACE_POSITIVE_Y:
return str << "CUBEFACE_POSITIVE_Y";
case CUBEFACE_NEGATIVE_Z:
return str << "CUBEFACE_NEGATIVE_Z";
case CUBEFACE_POSITIVE_Z:
return str << "CUBEFACE_POSITIVE_Z";
case CUBEFACE_LAST:
return str << "CUBEFACE_LAST";
default:
return str << "UNKNOWN(" << (int)face << ")";
}
}
std::ostream &operator<<(std::ostream &str, TextureFormat format)
{
return str << format.order << ", " << format.type << "";
}
std::ostream &operator<<(std::ostream &str, const ConstPixelBufferAccess &access)
{
return str << "format = (" << access.getFormat() << "), size = " << access.getWidth() << " x " << access.getHeight()
<< " x " << access.getDepth() << ", pitch = " << access.getRowPitch() << " / " << access.getSlicePitch();
}
bool isSamplerMipmapModeLinear(tcu::Sampler::FilterMode filterMode)
{
DE_STATIC_ASSERT(tcu::Sampler::FILTERMODE_LAST == 9);
switch (filterMode)
{
case tcu::Sampler::NEAREST:
case tcu::Sampler::LINEAR:
case tcu::Sampler::CUBIC:
case tcu::Sampler::NEAREST_MIPMAP_NEAREST:
case tcu::Sampler::LINEAR_MIPMAP_NEAREST:
case tcu::Sampler::CUBIC_MIPMAP_NEAREST:
return false;
case tcu::Sampler::NEAREST_MIPMAP_LINEAR:
case tcu::Sampler::LINEAR_MIPMAP_LINEAR:
case tcu::Sampler::CUBIC_MIPMAP_LINEAR:
return true;
default:
DE_FATAL("Illegal filter mode");
return false;
}
}
} // namespace tcu