blob: e11e7a3b94d8b80b22f77ecba0105a3eadc29155 [file] [log] [blame]
/*-------------------------------------------------------------------------
* drawElements Quality Program OpenGL (ES) Module
* -----------------------------------------------
*
* 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 GLES Scissor tests
*//*--------------------------------------------------------------------*/
#include "glsScissorTests.hpp"
#include "glsTextureTestUtil.hpp"
#include "deMath.h"
#include "deRandom.hpp"
#include "deUniquePtr.hpp"
#include "tcuTestCase.hpp"
#include "tcuImageCompare.hpp"
#include "tcuVector.hpp"
#include "tcuVectorUtil.hpp"
#include "tcuTexture.hpp"
#include "tcuStringTemplate.hpp"
#include "gluStrUtil.hpp"
#include "gluDrawUtil.hpp"
#include "gluPixelTransfer.hpp"
#include "gluObjectWrapper.hpp"
#include "glwEnums.hpp"
#include "glwFunctions.hpp"
#include <map>
namespace deqp
{
namespace gls
{
namespace Functional
{
namespace
{
using namespace ScissorTestInternal;
using namespace glw; // GL types
using tcu::ConstPixelBufferAccess;
using tcu::PixelBufferAccess;
using tcu::TestLog;
using std::vector;
using std::string;
using std::map;
using tcu::Vec3;
using tcu::Vec4;
using tcu::IVec4;
using tcu::UVec4;
void drawQuad (const glw::Functions& gl, deUint32 program, const Vec3& p0, const Vec3& p1)
{
// Vertex data.
const float hz = (p0.z() + p1.z()) * 0.5f;
const float position[] =
{
p0.x(), p0.y(), p0.z(), 1.0f,
p0.x(), p1.y(), hz, 1.0f,
p1.x(), p0.y(), hz, 1.0f,
p1.x(), p1.y(), p1.z(), 1.0f
};
const deUint16 indices[] = { 0, 1, 2, 2, 1, 3 };
const deInt32 posLoc = gl.getAttribLocation(program, "a_position");
gl.useProgram(program);
gl.enableVertexAttribArray(posLoc);
gl.vertexAttribPointer(posLoc, 4, GL_FLOAT, GL_FALSE, 0, &position[0]);
gl.drawElements(GL_TRIANGLES, DE_LENGTH_OF_ARRAY(indices), GL_UNSIGNED_SHORT, &indices[0]);
gl.disableVertexAttribArray(posLoc);
}
void drawPrimitives (const glw::Functions& gl, deUint32 program, const deUint32 type, const vector<float>& vertices, const vector<deUint16>& indices)
{
const deInt32 posLoc = gl.getAttribLocation(program, "a_position");
TCU_CHECK(posLoc >= 0);
gl.useProgram(program);
gl.enableVertexAttribArray(posLoc);
gl.vertexAttribPointer(posLoc, 4, GL_FLOAT, GL_FALSE, 0, &vertices[0]);
gl.drawElements(type, GLsizei(indices.size()), GL_UNSIGNED_SHORT, &indices[0]);
gl.disableVertexAttribArray(posLoc);
}
template<typename T>
void clearEdges (const tcu::PixelBufferAccess& access, const T& color, const IVec4& scissorArea)
{
for (int y = 0; y < access.getHeight(); y++)
for (int x = 0; x < access.getWidth(); x++)
{
if (y < scissorArea.y() ||
y >= scissorArea.y() + scissorArea.w() ||
x < scissorArea.x() ||
x >= scissorArea.x()+ scissorArea.z())
access.setPixel(color, x, y);
}
}
glu::ProgramSources genShaders(glu::GLSLVersion version, bool isPoint)
{
string vtxSource;
if (isPoint)
{
vtxSource = "${VERSION}\n"
"${IN} highp vec4 a_position;\n"
"void main(){\n"
" gl_Position = a_position;\n"
" gl_PointSize = 1.0;\n"
"}\n";
}
else
{
vtxSource = "${VERSION}\n"
"${IN} highp vec4 a_position;\n"
"void main(){\n"
" gl_Position = a_position;\n"
"}\n";
}
const string frgSource = "${VERSION}\n"
"${OUT_DECL}"
"uniform highp vec4 u_color;\n"
"void main(){\n"
" ${OUTPUT} = u_color;\n"
"}\n";
map<string, string> params;
switch(version)
{
case glu::GLSL_VERSION_100_ES:
params["VERSION"] = "#version 100";
params["IN"] = "attribute";
params["OUT_DECL"] = "";
params["OUTPUT"] = "gl_FragColor";
break;
case glu::GLSL_VERSION_300_ES:
case glu::GLSL_VERSION_310_ES: // Assumed to support 3.0
params["VERSION"] = "#version 300 es";
params["IN"] = "in";
params["OUT_DECL"] = "out mediump vec4 f_color;\n";
params["OUTPUT"] = "f_color";
break;
default:
DE_FATAL("Unsupported version");
}
return glu::makeVtxFragSources(tcu::StringTemplate(vtxSource).specialize(params), tcu::StringTemplate(frgSource).specialize(params));
}
// Wrapper class, provides iterator & reporting logic
class ScissorCase : public tcu::TestCase
{
public:
ScissorCase (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char *name, const char* desc, const Vec4& scissorArea);
virtual ~ScissorCase (void) {}
virtual IterateResult iterate (void);
protected:
virtual void render (GLuint program, const IVec4& viewport) const = 0;
// Initialize gl_PointSize to 1.0f when drawing points, or the point size is undefined according to spec.
virtual bool isPoint (void) const = 0;
glu::RenderContext& m_renderCtx;
const Vec4 m_scissorArea;
};
ScissorCase::ScissorCase (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char *name, const char* desc, const Vec4& scissorArea)
: TestCase (testCtx, name, desc)
, m_renderCtx (renderCtx)
, m_scissorArea (scissorArea)
{
}
ScissorCase::IterateResult ScissorCase::iterate (void)
{
using TextureTestUtil::RandomViewport;
const glw::Functions& gl = m_renderCtx.getFunctions();
TestLog& log = m_testCtx.getLog();
const tcu::PixelFormat renderFormat = m_renderCtx.getRenderTarget().getPixelFormat();
const tcu::Vec4 threshold = 0.02f * UVec4(1u << de::max(0, 8 - renderFormat.redBits),
1u << de::max(0, 8 - renderFormat.greenBits),
1u << de::max(0, 8 - renderFormat.blueBits),
1u << de::max(0, 8 - renderFormat.alphaBits)).asFloat();
const glu::ShaderProgram shader (m_renderCtx, genShaders(glu::getContextTypeGLSLVersion(m_renderCtx.getType()), isPoint()));
const RandomViewport viewport (m_renderCtx.getRenderTarget(), 256, 256, deStringHash(getName()));
const IVec4 relScissorArea (int(m_scissorArea.x() * (float)viewport.width),
int(m_scissorArea.y() * (float)viewport.height),
int(m_scissorArea.z() * (float)viewport.width),
int(m_scissorArea.w() * (float)viewport.height));
const IVec4 absScissorArea (relScissorArea.x() + viewport.x,
relScissorArea.y() + viewport.y,
relScissorArea.z(),
relScissorArea.w());
tcu::Surface refImage (viewport.width, viewport.height);
tcu::Surface resImage (viewport.width, viewport.height);
if (!shader.isOk())
{
log << shader;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Shader compile/link failed");
return STOP;
}
log << TestLog::Message << "Viewport area is " << IVec4(viewport.x, viewport.y, viewport.width, viewport.height) << TestLog::EndMessage;
log << TestLog::Message << "Scissor area is " << absScissorArea << TestLog::EndMessage;
// Render reference (no scissors)
{
log << TestLog::Message << "Rendering reference (scissors disabled)" << TestLog::EndMessage;
gl.useProgram(shader.getProgram());
gl.viewport(viewport.x, viewport.y, viewport.width, viewport.height);
gl.clearColor(0.125f, 0.25f, 0.5f, 1.0f);
gl.clearDepthf(1.0f);
gl.clearStencil(0);
gl.disable(GL_DEPTH_TEST);
gl.disable(GL_STENCIL_TEST);
gl.disable(GL_SCISSOR_TEST);
gl.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
render(shader.getProgram(), IVec4(viewport.x, viewport.y, viewport.width, viewport.height));
glu::readPixels(m_renderCtx, viewport.x, viewport.y, refImage.getAccess());
GLU_CHECK_ERROR(gl.getError());
}
// Render result (scissors)
{
log << TestLog::Message << "Rendering result (scissors enabled)" << TestLog::EndMessage;
gl.useProgram(shader.getProgram());
gl.viewport(viewport.x, viewport.y, viewport.width, viewport.height);
gl.clearColor(0.125f, 0.25f, 0.5f, 1.0f);
gl.clearDepthf(1.0f);
gl.clearStencil(0);
gl.disable(GL_DEPTH_TEST);
gl.disable(GL_STENCIL_TEST);
gl.disable(GL_SCISSOR_TEST);
gl.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
gl.scissor(absScissorArea.x(), absScissorArea.y(), absScissorArea.z(), absScissorArea.w());
gl.enable(GL_SCISSOR_TEST);
render(shader.getProgram(), IVec4(viewport.x, viewport.y, viewport.width, viewport.height));
glu::readPixels(m_renderCtx, viewport.x, viewport.y, resImage.getAccess());
GLU_CHECK_ERROR(gl.getError());
}
// Manual 'scissors' for reference image
log << TestLog::Message << "Clearing area outside scissor area from reference" << TestLog::EndMessage;
clearEdges(refImage.getAccess(), IVec4(32, 64, 128, 255), relScissorArea);
if (tcu::floatThresholdCompare(log, "ComparisonResult", "Image comparison result", refImage.getAccess(), resImage.getAccess(), threshold, tcu::COMPARE_LOG_RESULT))
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
else
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Image comparison failed");
return STOP;
}
// Tests scissoring with multiple primitive types
class ScissorPrimitiveCase : public ScissorCase
{
public:
ScissorPrimitiveCase (tcu::TestContext& testCtx,
glu::RenderContext& renderCtx,
const char* name,
const char* desc,
const Vec4& scissorArea,
const Vec4& renderArea,
PrimitiveType type,
int primitiveCount);
virtual ~ScissorPrimitiveCase (void){}
protected:
virtual void render (GLuint program, const IVec4& viewport) const;
virtual bool isPoint (void) const;
private:
const Vec4 m_renderArea;
const PrimitiveType m_primitiveType;
const int m_primitiveCount;
};
ScissorPrimitiveCase::ScissorPrimitiveCase (tcu::TestContext& testCtx,
glu::RenderContext& renderCtx,
const char* name,
const char* desc,
const Vec4& scissorArea,
const Vec4& renderArea,
PrimitiveType type,
int primitiveCount)
: ScissorCase (testCtx, renderCtx, name, desc, scissorArea)
, m_renderArea (renderArea)
, m_primitiveType (type)
, m_primitiveCount (primitiveCount)
{
}
bool ScissorPrimitiveCase::isPoint (void) const
{
return (m_primitiveType == POINT);
}
void ScissorPrimitiveCase::render (GLuint program, const IVec4&) const
{
const glw::Functions& gl = m_renderCtx.getFunctions();
const Vec4 white (1.0f, 1.0f, 1.0f, 1.0);
const Vec4 primitiveArea (m_renderArea.x()*2.0f-1.0f,
m_renderArea.x()*2.0f-1.0f,
m_renderArea.z()*2.0f,
m_renderArea.w()*2.0f);
static const float quadPositions[] =
{
0.0f, 1.0f,
0.0f, 0.0f,
1.0f, 1.0f,
1.0f, 0.0f
};
static const float triPositions[] =
{
0.0f, 0.0f,
1.0f, 0.0f,
0.5f, 1.0f,
};
static const float linePositions[] =
{
0.0f, 0.0f,
1.0f, 1.0f
};
static const float pointPosition[] =
{
0.5f, 0.5f
};
const float* positionSet[] = { pointPosition, linePositions, triPositions, quadPositions };
const int vertexCountSet[]= { 1, 2, 3, 4 };
const int indexCountSet[] = { 1, 2, 3, 6 };
const deUint16 baseIndices[] = { 0, 1, 2, 2, 1, 3 };
const float* basePositions = positionSet[m_primitiveType];
const int vertexCount = vertexCountSet[m_primitiveType];
const int indexCount = indexCountSet[m_primitiveType];
const float scale = 1.44f/deFloatSqrt(float(m_primitiveCount)*2.0f); // Magic value to roughly fill the render area with primitives at a readable density
vector<float> positions (4*vertexCount*m_primitiveCount);
vector<deUint16> indices (indexCount*m_primitiveCount);
de::Random rng (1234);
for (int primNdx = 0; primNdx < m_primitiveCount; primNdx++)
{
const float dx = m_primitiveCount>1 ? rng.getFloat() : 0.0f;
const float dy = m_primitiveCount>1 ? rng.getFloat() : 0.0f;
for (int vertNdx = 0; vertNdx < vertexCount; vertNdx++)
{
const int ndx = primNdx*4*vertexCount + vertNdx*4;
positions[ndx+0] = (basePositions[vertNdx*2 + 0]*scale + dx)*primitiveArea.z() + primitiveArea.x();
positions[ndx+1] = (basePositions[vertNdx*2 + 1]*scale + dy)*primitiveArea.w() + primitiveArea.y();
positions[ndx+2] = 0.2f;
positions[ndx+3] = 1.0f;
}
for (int ndx = 0; ndx < indexCount; ndx++)
indices[primNdx*indexCount + ndx] = (deUint16)(baseIndices[ndx] + primNdx*vertexCount);
}
gl.uniform4fv(gl.getUniformLocation(program, "u_color"), 1, white.m_data);
switch (m_primitiveType)
{
case TRIANGLE: drawPrimitives(gl, program, GL_TRIANGLES, positions, indices); break;
case LINE: drawPrimitives(gl, program, GL_LINES, positions, indices); break;
case POINT: drawPrimitives(gl, program, GL_POINTS, positions, indices); break;
default: DE_ASSERT(false); break;
}
}
// Test effect of scissor on default framebuffer clears
class ScissorClearCase : public ScissorCase
{
public:
ScissorClearCase (tcu::TestContext& testCtx,
glu::RenderContext& renderCtx,
const char* name,
const char* desc,
const Vec4& scissorArea,
deUint32 clearMode);
virtual ~ScissorClearCase (void) {}
virtual void init (void);
protected:
virtual void render (GLuint program, const IVec4& viewport) const;
virtual bool isPoint (void) const;
private:
const deUint32 m_clearMode; //!< Combination of the flags accepted by glClear
};
ScissorClearCase::ScissorClearCase (tcu::TestContext& testCtx,
glu::RenderContext& renderCtx,
const char* name,
const char* desc,
const Vec4& scissorArea,
deUint32 clearMode)
: ScissorCase (testCtx, renderCtx, name, desc, scissorArea)
, m_clearMode (clearMode)
{
}
void ScissorClearCase::init (void)
{
if ((m_clearMode & GL_DEPTH_BUFFER_BIT) && m_renderCtx.getRenderTarget().getDepthBits() == 0)
throw tcu::NotSupportedError("Cannot clear depth; no depth buffer present", "", __FILE__, __LINE__);
else if ((m_clearMode & GL_STENCIL_BUFFER_BIT) && m_renderCtx.getRenderTarget().getStencilBits() == 0)
throw tcu::NotSupportedError("Cannot clear stencil; no stencil buffer present", "", __FILE__, __LINE__);
}
bool ScissorClearCase::isPoint (void) const
{
return false;
}
void ScissorClearCase::render (GLuint program, const IVec4&) const
{
const glw::Functions& gl = m_renderCtx.getFunctions();
const Vec4 white (1.0f, 1.0f, 1.0f, 1.0);
gl.clearColor(0.6f, 0.1f, 0.1f, 1.0);
gl.clearDepthf(0.0f);
if (m_clearMode & GL_DEPTH_BUFFER_BIT)
{
gl.enable(GL_DEPTH_TEST);
gl.depthFunc(GL_GREATER);
}
if (m_clearMode & GL_STENCIL_BUFFER_BIT)
{
gl.clearStencil(123);
gl.enable(GL_STENCIL_TEST);
gl.stencilFunc(GL_EQUAL, 123, ~0u);
}
if (m_clearMode & GL_COLOR_BUFFER_BIT)
gl.clearColor(0.1f, 0.6f, 0.1f, 1.0);
gl.clear(m_clearMode);
gl.disable(GL_SCISSOR_TEST);
gl.uniform4fv(gl.getUniformLocation(program, "u_color"), 1, white.getPtr());
if (!(m_clearMode & GL_COLOR_BUFFER_BIT))
drawQuad(gl, program, Vec3(-1.0f, -1.0f, 0.5f), Vec3(1.0f, 1.0f, 0.5f));
gl.disable(GL_DEPTH_TEST);
gl.disable(GL_STENCIL_TEST);
}
class FramebufferBlitCase : public ScissorCase
{
public:
FramebufferBlitCase (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char* name, const char* desc, const Vec4& scissorArea);
virtual ~FramebufferBlitCase (void) {}
virtual void init (void);
virtual void deinit (void);
protected:
typedef de::MovePtr<glu::Framebuffer> FramebufferP;
enum {SIZE = 64};
virtual void render (GLuint program, const IVec4& viewport) const;
virtual bool isPoint (void) const;
FramebufferP m_fbo;
};
FramebufferBlitCase::FramebufferBlitCase (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char* name, const char* desc, const Vec4& scissorArea)
: ScissorCase(testCtx, renderCtx, name, desc, scissorArea)
{
}
void FramebufferBlitCase::init (void)
{
if (m_renderCtx.getRenderTarget().getNumSamples())
throw tcu::NotSupportedError("Cannot blit to multisampled framebuffer", "", __FILE__, __LINE__);
const glw::Functions& gl = m_renderCtx.getFunctions();
const glu::Renderbuffer colorbuf (gl);
const tcu::Vec4 clearColor (1.0f, 0.5, 0.125f, 1.0f);
m_fbo = FramebufferP(new glu::Framebuffer(gl));
gl.bindFramebuffer(GL_DRAW_FRAMEBUFFER, **m_fbo);
gl.bindRenderbuffer(GL_RENDERBUFFER, *colorbuf);
gl.renderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, SIZE, SIZE);
gl.framebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, *colorbuf);
gl.clearBufferfv(GL_COLOR, 0, clearColor.getPtr());
gl.bindFramebuffer(GL_DRAW_FRAMEBUFFER, m_renderCtx.getDefaultFramebuffer());
}
void FramebufferBlitCase::deinit (void)
{
m_fbo.clear();
}
bool FramebufferBlitCase::isPoint (void) const
{
return false;
}
void FramebufferBlitCase::render(GLuint program, const IVec4& viewport) const
{
const glw::Functions& gl = m_renderCtx.getFunctions();
const int width = viewport.z();
const int height = viewport.w();
const deInt32 defaultFramebuffer = m_renderCtx.getDefaultFramebuffer();
DE_UNREF(program);
// blit to default framebuffer
gl.bindFramebuffer(GL_READ_FRAMEBUFFER, **m_fbo);
gl.bindFramebuffer(GL_DRAW_FRAMEBUFFER, defaultFramebuffer);
gl.blitFramebuffer(0, 0, SIZE, SIZE, viewport.x(), viewport.y(), viewport.x() + width, viewport.y() + height, GL_COLOR_BUFFER_BIT, GL_NEAREST);
gl.bindFramebuffer(GL_READ_FRAMEBUFFER, defaultFramebuffer);
}
struct BufferFmtDesc
{
tcu::TextureFormat texFmt;
GLenum colorFmt;
};
struct Color
{
enum Type {FLOAT, INT, UINT};
Type type;
union
{
float f[4];
deInt32 i[4];
deUint32 u[4];
};
Color(const float f_[4]) : type(FLOAT) { f[0] = f_[0]; f[1] = f_[1]; f[2] = f_[2]; f[3] = f_[3]; }
Color(const deInt32 i_[4]) : type(INT) { i[0] = i_[0]; i[1] = i_[1]; i[2] = i_[2]; i[3] = i_[3]; }
Color(const deUint32 u_[4]) : type(UINT) { u[0] = u_[0]; u[1] = u_[1]; u[2] = u_[2]; u[3] = u_[3]; }
};
class FramebufferClearCase : public tcu::TestCase
{
public:
FramebufferClearCase (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char* name, const char* desc, ClearType clearType);
virtual ~FramebufferClearCase (void) {}
virtual IterateResult iterate (void);
private:
static void clearBuffers (const glw::Functions& gl, Color color, float depth, int stencil);
static Color getBaseColor (const BufferFmtDesc& bufferFmt);
static Color getMainColor (const BufferFmtDesc& bufferFmt);
static BufferFmtDesc getBufferFormat (ClearType type);
virtual void render (GLuint program) const;
virtual bool isPoint (void) const;
glu::RenderContext& m_renderCtx;
const ClearType m_clearType;
};
FramebufferClearCase::FramebufferClearCase (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char* name, const char* desc, ClearType clearType)
: tcu::TestCase (testCtx, name, desc)
, m_renderCtx (renderCtx)
, m_clearType (clearType)
{
}
void FramebufferClearCase::clearBuffers (const glw::Functions& gl, Color color, float depth, int stencil)
{
switch(color.type)
{
case Color::FLOAT: gl.clearBufferfv (GL_COLOR, 0, color.f); break;
case Color::INT: gl.clearBufferiv (GL_COLOR, 0, color.i); break;
case Color::UINT: gl.clearBufferuiv(GL_COLOR, 0, color.u); break;
default:
DE_ASSERT(false);
}
gl.clearBufferfv(GL_DEPTH, 0, &depth);
gl.clearBufferiv(GL_STENCIL, 0, &stencil);
}
FramebufferClearCase::IterateResult FramebufferClearCase::iterate (void)
{
TestLog& log = m_testCtx.getLog();
const glw::Functions& gl = m_renderCtx.getFunctions();
const glu::ShaderProgram shader (m_renderCtx, genShaders(glu::getContextTypeGLSLVersion(m_renderCtx.getType()), isPoint()));
const glu::Framebuffer fbo (gl);
const glu::Renderbuffer colorbuf (gl);
const glu::Renderbuffer depthbuf (gl);
const BufferFmtDesc bufferFmt = getBufferFormat(m_clearType);
const Color baseColor = getBaseColor(bufferFmt);
const int width = 64;
const int height = 64;
const IVec4 scissorArea (8, 8, 48, 48);
vector<deUint8> refData (width*height*bufferFmt.texFmt.getPixelSize());
vector<deUint8> resData (width*height*bufferFmt.texFmt.getPixelSize());
tcu::PixelBufferAccess refAccess (bufferFmt.texFmt, width, height, 1, &refData[0]);
tcu::PixelBufferAccess resAccess (bufferFmt.texFmt, width, height, 1, &resData[0]);
if (!shader.isOk())
{
log << shader;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Shader compile/link failed");
return STOP;
}
gl.bindFramebuffer(GL_DRAW_FRAMEBUFFER, *fbo);
gl.bindFramebuffer(GL_READ_FRAMEBUFFER, *fbo);
// Color
gl.bindRenderbuffer(GL_RENDERBUFFER, *colorbuf);
gl.renderbufferStorage(GL_RENDERBUFFER, bufferFmt.colorFmt, width, height);
gl.framebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, *colorbuf);
// Depth/stencil
gl.bindRenderbuffer(GL_RENDERBUFFER, *depthbuf);
gl.renderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, width, height);
gl.framebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, *depthbuf);
log << TestLog::Message << "Scissor area is " << scissorArea << TestLog::EndMessage;
// Render reference
{
log << TestLog::Message << "Rendering reference (scissors disabled)" << TestLog::EndMessage;
gl.useProgram(shader.getProgram());
gl.viewport(0, 0, width, height);
gl.disable(GL_DEPTH_TEST);
gl.disable(GL_STENCIL_TEST);
gl.disable(GL_SCISSOR_TEST);
clearBuffers(gl, baseColor, 1.0f, 0);
render(shader.getProgram());
glu::readPixels(m_renderCtx, 0, 0, refAccess);
GLU_CHECK_ERROR(gl.getError());
}
// Render result
{
log << TestLog::Message << "Rendering result (scissors enabled)" << TestLog::EndMessage;
gl.useProgram(shader.getProgram());
gl.viewport(0, 0, width, height);
gl.disable(GL_DEPTH_TEST);
gl.disable(GL_STENCIL_TEST);
gl.disable(GL_SCISSOR_TEST);
clearBuffers(gl, baseColor, 1.0f, 0);
gl.enable(GL_SCISSOR_TEST);
gl.scissor(scissorArea.x(), scissorArea.y(), scissorArea.z(), scissorArea.w());
render(shader.getProgram());
glu::readPixels(m_renderCtx, 0, 0, resAccess);
GLU_CHECK_ERROR(gl.getError());
}
{
bool resultOk = false;
switch (baseColor.type)
{
case Color::FLOAT:
clearEdges(refAccess, Vec4(baseColor.f[0], baseColor.f[1], baseColor.f[2], baseColor.f[3]), scissorArea);
resultOk = tcu::floatThresholdCompare(log, "ComparisonResult", "Image comparison result", refAccess, resAccess, Vec4(0.02f, 0.02f, 0.02f, 0.02f), tcu::COMPARE_LOG_RESULT);
break;
case Color::INT:
clearEdges(refAccess, IVec4(baseColor.i[0], baseColor.i[1], baseColor.i[2], baseColor.i[3]), scissorArea);
resultOk = tcu::intThresholdCompare(log, "ComparisonResult", "Image comparison result", refAccess, resAccess, UVec4(2, 2, 2, 2), tcu::COMPARE_LOG_RESULT);
break;
case Color::UINT:
clearEdges(refAccess, UVec4(baseColor.u[0], baseColor.u[1], baseColor.u[2], baseColor.u[3]), scissorArea);
resultOk = tcu::intThresholdCompare(log, "ComparisonResult", "Image comparison result", refAccess, resAccess, UVec4(2, 2, 2, 2), tcu::COMPARE_LOG_RESULT);
break;
}
if (resultOk)
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
else
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Image comparison failed");
}
return STOP;
}
Color FramebufferClearCase::getBaseColor (const BufferFmtDesc& bufferFmt)
{
const float f[4] = {0.125f, 0.25f, 0.5f, 1.0f};
const deInt32 i[4] = {0, 0, 0, 0};
const deUint32 u[4] = {0, 0, 0, 0};
switch(bufferFmt.colorFmt)
{
case GL_RGBA8: return Color(f);
case GL_RGBA8I: return Color(i);
case GL_RGBA8UI: return Color(u);
default:
DE_ASSERT(false);
}
return Color(f);
}
Color FramebufferClearCase::getMainColor (const BufferFmtDesc& bufferFmt)
{
const float f[4] = {1.0f, 1.0f, 0.5f, 1.0f};
const deInt32 i[4] = {127, -127, 0, 127};
const deUint32 u[4] = {255, 255, 0, 255};
switch(bufferFmt.colorFmt)
{
case GL_RGBA8: return Color(f);
case GL_RGBA8I: return Color(i);
case GL_RGBA8UI: return Color(u);
default:
DE_ASSERT(false);
}
return Color(f);
}
BufferFmtDesc FramebufferClearCase::getBufferFormat (ClearType type)
{
BufferFmtDesc retval;
switch (type)
{
case CLEAR_COLOR_FLOAT:
retval.colorFmt = GL_RGBA16F;
retval.texFmt = tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::HALF_FLOAT);
DE_FATAL("Floating point clear not implemented");// \todo [2014-1-23 otto] pixel read format & type, nothing guaranteed, need extension...
break;
case CLEAR_COLOR_INT:
retval.colorFmt = GL_RGBA8I;
retval.texFmt = tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::SIGNED_INT32);
break;
case CLEAR_COLOR_UINT:
retval.colorFmt = GL_RGBA8UI;
retval.texFmt = tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::UNSIGNED_INT32);
break;
default:
retval.colorFmt = GL_RGBA8;
retval.texFmt = tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::UNORM_INT8);
break;
}
return retval;
}
void FramebufferClearCase::render (GLuint program) const
{
const glw::Functions& gl = m_renderCtx.getFunctions();
const BufferFmtDesc bufferFmt = getBufferFormat(m_clearType);
const Color clearColor = getMainColor(bufferFmt);
const int clearStencil = 123;
const float clearDepth = 0.5f;
switch (m_clearType)
{
case CLEAR_COLOR_FIXED: gl.clearBufferfv (GL_COLOR, 0, clearColor.f); break;
case CLEAR_COLOR_FLOAT: gl.clearBufferfv (GL_COLOR, 0, clearColor.f); break;
case CLEAR_COLOR_INT: gl.clearBufferiv (GL_COLOR, 0, clearColor.i); break;
case CLEAR_COLOR_UINT: gl.clearBufferuiv(GL_COLOR, 0, clearColor.u); break;
case CLEAR_DEPTH: gl.clearBufferfv (GL_DEPTH, 0, &clearDepth); break;
case CLEAR_STENCIL: gl.clearBufferiv (GL_STENCIL, 0, &clearStencil); break;
case CLEAR_DEPTH_STENCIL: gl.clearBufferfi (GL_DEPTH_STENCIL, 0, clearDepth, clearStencil); break;
default:
DE_ASSERT(false);
}
const bool useDepth = (m_clearType == CLEAR_DEPTH || m_clearType == CLEAR_DEPTH_STENCIL);
const bool useStencil = (m_clearType == CLEAR_STENCIL || m_clearType == CLEAR_DEPTH_STENCIL);
// Render something to expose changes to depth/stencil buffer
if (useDepth || useStencil)
{
if (useDepth)
gl.enable(GL_DEPTH_TEST);
if (useStencil)
gl.enable(GL_STENCIL_TEST);
gl.stencilFunc(GL_EQUAL, clearStencil, ~0u);
gl.depthFunc(GL_GREATER);
gl.disable(GL_SCISSOR_TEST);
gl.uniform4fv(gl.getUniformLocation(program, "u_color"), 1, clearColor.f);
drawQuad(gl, program, tcu::Vec3(-1.0f, -1.0f, 0.6f), tcu::Vec3(1.0f, 1.0f, 0.6f));
}
}
bool FramebufferClearCase::isPoint (void) const
{
return false;
}
} // Anonymous
namespace ScissorTestInternal
{
tcu::TestNode* createPrimitiveTest (tcu::TestContext& testCtx,
glu::RenderContext& renderCtx,
const char* name,
const char* desc,
const Vec4& scissorArea,
const Vec4& renderArea,
PrimitiveType type,
int primitiveCount)
{
return new ScissorPrimitiveCase(testCtx, renderCtx, name, desc, scissorArea, renderArea, type, primitiveCount);
}
tcu::TestNode* createClearTest (tcu::TestContext& testCtx,
glu::RenderContext& renderCtx,
const char* name,
const char* desc,
const Vec4& scissorArea,
deUint32 clearMode)
{
return new ScissorClearCase(testCtx, renderCtx, name, desc, scissorArea, clearMode);
}
tcu::TestNode* createFramebufferClearTest (tcu::TestContext& testCtx,
glu::RenderContext& renderCtx,
const char* name,
const char* desc,
ClearType clearType)
{
return new FramebufferClearCase(testCtx, renderCtx, name, desc, clearType);
}
tcu::TestNode* createFramebufferBlitTest (tcu::TestContext& testCtx,
glu::RenderContext& renderCtx,
const char* name,
const char* desc,
const Vec4& scissorArea)
{
return new FramebufferBlitCase(testCtx, renderCtx, name, desc, scissorArea);
}
} // ScissorTestInternal
} // Functional
} // gls
} // deqp