/*-------------------------------------------------------------------------
* drawElements Quality Program OpenGL ES 3.1 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 Multisample interpolation tests
*//*--------------------------------------------------------------------*/
#include "es31fShaderMultisampleInterpolationTests.hpp"
#include "es31fMultisampleShaderRenderCase.hpp"
#include "tcuTestLog.hpp"
#include "tcuRGBA.hpp"
#include "tcuSurface.hpp"
#include "tcuStringTemplate.hpp"
#include "tcuRenderTarget.hpp"
#include "gluContextInfo.hpp"
#include "gluShaderProgram.hpp"
#include "gluRenderContext.hpp"
#include "glwFunctions.hpp"
#include "glwEnums.hpp"
#include "deArrayUtil.hpp"
#include "deStringUtil.hpp"
#include "deMath.h"
#include <map>
namespace deqp
{
namespace gles31
{
namespace Functional
{
namespace
{
static std::string specializeShader(const std::string& shaderSource, const glu::ContextType& contextType)
{
const bool supportsES32 = glu::contextSupports(contextType, glu::ApiType::es(3, 2));
std::map<std::string, std::string> args;
args["GLSL_VERSION_DECL"] = glu::getGLSLVersionDeclaration(glu::getContextTypeGLSLVersion(contextType));
args["GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION"] = supportsES32 ? "" : "#extension GL_OES_shader_multisample_interpolation : require\n";
args["GLSL_EXT_SAMPLE_VARIABLES"] = supportsES32 ? "" : "#extension GL_OES_sample_variables : require\n";
return tcu::StringTemplate(shaderSource).specialize(args);
}
static bool verifyGreenImage (const tcu::Surface& image, tcu::TestLog& log)
{
bool error = false;
log << tcu::TestLog::Message << "Verifying result image, expecting green." << tcu::TestLog::EndMessage;
// all pixels must be green
for (int y = 0; y < image.getHeight(); ++y)
for (int x = 0; x < image.getWidth(); ++x)
{
const tcu::RGBA color = image.getPixel(x, y);
const int greenThreshold = 8;
if (color.getRed() > 0 || color.getGreen() < 255-greenThreshold || color.getBlue() > 0)
error = true;
}
if (error)
log << tcu::TestLog::Image("ResultImage", "Result Image", image.getAccess())
<< tcu::TestLog::Message
<< "Image verification failed."
<< tcu::TestLog::EndMessage;
else
log << tcu::TestLog::Image("ResultImage", "Result Image", image.getAccess())
<< tcu::TestLog::Message
<< "Image verification passed."
<< tcu::TestLog::EndMessage;
return !error;
}
class MultisampleShadeCountRenderCase : public MultisampleShaderRenderUtil::MultisampleRenderCase
{
public:
MultisampleShadeCountRenderCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target);
virtual ~MultisampleShadeCountRenderCase (void);
void init (void);
private:
enum
{
RENDER_SIZE = 128
};
virtual std::string getIterationDescription (int iteration) const;
bool verifyImage (const tcu::Surface& resultImage);
};
MultisampleShadeCountRenderCase::MultisampleShadeCountRenderCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target)
: MultisampleShaderRenderUtil::MultisampleRenderCase(context, name, description, numSamples, target, RENDER_SIZE, MultisampleShaderRenderUtil::MultisampleRenderCase::FLAG_PER_ITERATION_SHADER)
{
m_numIterations = -1; // must be set by deriving class
}
MultisampleShadeCountRenderCase::~MultisampleShadeCountRenderCase (void)
{
}
void MultisampleShadeCountRenderCase::init (void)
{
// requirements
if (!m_context.getContextInfo().isExtensionSupported("GL_OES_shader_multisample_interpolation") && !glu::contextSupports(m_context.getRenderContext().getType(), glu::ApiType::es(3, 2)))
TCU_THROW(NotSupportedError, "Test requires GL_OES_shader_multisample_interpolation extension");
MultisampleShaderRenderUtil::MultisampleRenderCase::init();
}
std::string MultisampleShadeCountRenderCase::getIterationDescription (int iteration) const
{
// must be overriden
DE_UNREF(iteration);
DE_ASSERT(false);
return "";
}
bool MultisampleShadeCountRenderCase::verifyImage (const tcu::Surface& resultImage)
{
const bool isSingleSampleTarget = (m_renderTarget != TARGET_DEFAULT && m_numRequestedSamples == 0) || (m_renderTarget == TARGET_DEFAULT && m_context.getRenderTarget().getNumSamples() <= 1);
const int numShadesRequired = (isSingleSampleTarget) ? (2) : (m_numTargetSamples + 1);
const int rareThreshold = 100;
int rareCount = 0;
std::map<deUint32, int> shadeFrequency;
m_testCtx.getLog()
<< tcu::TestLog::Image("ResultImage", "Result Image", resultImage.getAccess())
<< tcu::TestLog::Message
<< "Verifying image has (at least) " << numShadesRequired << " different shades.\n"
<< "Excluding pixels with no full coverage (pixels on the shared edge of the triangle pair)."
<< tcu::TestLog::EndMessage;
for (int y = 0; y < RENDER_SIZE; ++y)
for (int x = 0; x < RENDER_SIZE; ++x)
{
const tcu::RGBA color = resultImage.getPixel(x, y);
const deUint32 packed = ((deUint32)color.getRed()) + ((deUint32)color.getGreen() << 8) + ((deUint32)color.getGreen() << 16);
// on the triangle edge, skip
if (x == y)
continue;
if (shadeFrequency.find(packed) == shadeFrequency.end())
shadeFrequency[packed] = 1;
else
shadeFrequency[packed] = shadeFrequency[packed] + 1;
}
for (std::map<deUint32, int>::const_iterator it = shadeFrequency.begin(); it != shadeFrequency.end(); ++it)
if (it->second < rareThreshold)
rareCount++;
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Found " << (int)shadeFrequency.size() << " different shades.\n"
<< "\tRare (less than " << rareThreshold << " pixels): " << rareCount << "\n"
<< "\tCommon: " << (int)shadeFrequency.size() - rareCount << "\n"
<< tcu::TestLog::EndMessage;
if ((int)shadeFrequency.size() < numShadesRequired)
{
m_testCtx.getLog() << tcu::TestLog::Message << "Image verification failed." << tcu::TestLog::EndMessage;
return false;
}
return true;
}
class SampleQualifierRenderCase : public MultisampleShadeCountRenderCase
{
public:
SampleQualifierRenderCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target);
~SampleQualifierRenderCase (void);
void init (void);
private:
std::string genVertexSource (int numTargetSamples) const;
std::string genFragmentSource (int numTargetSamples) const;
std::string getIterationDescription (int iteration) const;
};
SampleQualifierRenderCase::SampleQualifierRenderCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target)
: MultisampleShadeCountRenderCase(context, name, description, numSamples, target)
{
m_numIterations = 6; // float, vec2, .3, .4, array, struct
}
SampleQualifierRenderCase::~SampleQualifierRenderCase (void)
{
}
void SampleQualifierRenderCase::init (void)
{
const bool isSingleSampleTarget = (m_renderTarget != TARGET_DEFAULT && m_numRequestedSamples == 0) || (m_renderTarget == TARGET_DEFAULT && m_context.getRenderTarget().getNumSamples() <= 1);
// test purpose and expectations
if (isSingleSampleTarget)
{
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Verifying that a sample-qualified varying is given different values for different samples.\n"
<< " Render high-frequency function, map result to black/white.\n"
<< " => Resulting image image should contain both black and white pixels.\n"
<< tcu::TestLog::EndMessage;
}
else
{
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Verifying that a sample-qualified varying is given different values for different samples.\n"
<< " Render high-frequency function, map result to black/white.\n"
<< " => Resulting image should contain n+1 shades of gray, n = sample count.\n"
<< tcu::TestLog::EndMessage;
}
MultisampleShadeCountRenderCase::init();
}
std::string SampleQualifierRenderCase::genVertexSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"${GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION}"
"in highp vec4 a_position;\n";
if (m_iteration == 0)
buf << "sample out highp float v_input;\n";
else if (m_iteration == 1)
buf << "sample out highp vec2 v_input;\n";
else if (m_iteration == 2)
buf << "sample out highp vec3 v_input;\n";
else if (m_iteration == 3)
buf << "sample out highp vec4 v_input;\n";
else if (m_iteration == 4)
buf << "sample out highp float[2] v_input;\n";
else if (m_iteration == 5)
buf << "struct VaryingStruct { highp float a; highp float b; };\n"
"sample out VaryingStruct v_input;\n";
else
DE_ASSERT(false);
buf << "void main (void)\n"
"{\n"
" gl_Position = a_position;\n";
if (m_iteration == 0)
buf << " v_input = a_position.x + exp(a_position.y) + step(0.9, a_position.x)*step(a_position.y, -0.9)*8.0;\n";
else if (m_iteration == 1)
buf << " v_input = a_position.xy;\n";
else if (m_iteration == 2)
buf << " v_input = vec3(a_position.xy, a_position.x * 2.0 - a_position.y);\n";
else if (m_iteration == 3)
buf << " v_input = vec4(a_position.xy, a_position.x * 2.0 - a_position.y, a_position.x*a_position.y);\n";
else if (m_iteration == 4)
buf << " v_input[0] = a_position.x;\n"
" v_input[1] = a_position.y;\n";
else if (m_iteration == 5)
buf << " v_input.a = a_position.x;\n"
" v_input.b = a_position.y;\n";
else
DE_ASSERT(false);
buf << "}";
return specializeShader(buf.str(), m_context.getRenderContext().getType());;
}
std::string SampleQualifierRenderCase::genFragmentSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"${GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION}";
if (m_iteration == 0)
buf << "sample in highp float v_input;\n";
else if (m_iteration == 1)
buf << "sample in highp vec2 v_input;\n";
else if (m_iteration == 2)
buf << "sample in highp vec3 v_input;\n";
else if (m_iteration == 3)
buf << "sample in highp vec4 v_input;\n";
else if (m_iteration == 4)
buf << "sample in highp float[2] v_input;\n";
else if (m_iteration == 5)
buf << "struct VaryingStruct { highp float a; highp float b; };\n"
"sample in VaryingStruct v_input;\n";
else
DE_ASSERT(false);
buf << "layout(location = 0) out mediump vec4 fragColor;\n"
"void main (void)\n"
"{\n";
if (m_iteration == 0)
buf << " highp float field = exp(v_input) + v_input*v_input;\n";
else if (m_iteration == 1)
buf << " highp float field = dot(v_input.xy, v_input.xy) + dot(21.0 * v_input.xx, sin(3.1 * v_input.xy));\n";
else if (m_iteration == 2)
buf << " highp float field = dot(v_input.xy, v_input.xy) + dot(21.0 * v_input.zx, sin(3.1 * v_input.zy));\n";
else if (m_iteration == 3)
buf << " highp float field = dot(v_input.xy, v_input.zw) + dot(21.0 * v_input.zy, sin(3.1 * v_input.zw));\n";
else if (m_iteration == 4)
buf << " highp float field = dot(vec2(v_input[0], v_input[1]), vec2(v_input[0], v_input[1])) + dot(21.0 * vec2(v_input[0]), sin(3.1 * vec2(v_input[0], v_input[1])));\n";
else if (m_iteration == 5)
buf << " highp float field = dot(vec2(v_input.a, v_input.b), vec2(v_input.a, v_input.b)) + dot(21.0 * vec2(v_input.a), sin(3.1 * vec2(v_input.a, v_input.b)));\n";
else
DE_ASSERT(false);
buf << " fragColor = vec4(1.0, 1.0, 1.0, 1.0);\n"
"\n"
" if (fract(field) > 0.5)\n"
" fragColor = vec4(0.0, 0.0, 0.0, 1.0);\n"
"}";
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
std::string SampleQualifierRenderCase::getIterationDescription (int iteration) const
{
if (iteration == 0)
return "Test with float varying";
else if (iteration == 1)
return "Test with vec2 varying";
else if (iteration == 2)
return "Test with vec3 varying";
else if (iteration == 3)
return "Test with vec4 varying";
else if (iteration == 4)
return "Test with array varying";
else if (iteration == 5)
return "Test with struct varying";
DE_ASSERT(false);
return "";
}
class InterpolateAtSampleRenderCase : public MultisampleShadeCountRenderCase
{
public:
enum IndexingMode
{
INDEXING_STATIC,
INDEXING_DYNAMIC,
INDEXING_LAST
};
InterpolateAtSampleRenderCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target, IndexingMode mode);
~InterpolateAtSampleRenderCase (void);
void init (void);
void preDraw (void);
private:
std::string genVertexSource (int numTargetSamples) const;
std::string genFragmentSource (int numTargetSamples) const;
std::string getIterationDescription (int iteration) const;
const IndexingMode m_indexMode;
};
InterpolateAtSampleRenderCase::InterpolateAtSampleRenderCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target, IndexingMode mode)
: MultisampleShadeCountRenderCase (context, name, description, numSamples, target)
, m_indexMode (mode)
{
DE_ASSERT(mode < INDEXING_LAST);
m_numIterations = 5; // float, vec2, .3, .4, array
}
InterpolateAtSampleRenderCase::~InterpolateAtSampleRenderCase (void)
{
}
void InterpolateAtSampleRenderCase::init (void)
{
const bool isSingleSampleTarget = (m_renderTarget != TARGET_DEFAULT && m_numRequestedSamples == 0) || (m_renderTarget == TARGET_DEFAULT && m_context.getRenderTarget().getNumSamples() <= 1);
// test purpose and expectations
if (isSingleSampleTarget)
{
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Verifying that a interpolateAtSample returns different values for different samples.\n"
<< " Render high-frequency function, map result to black/white.\n"
<< " => Resulting image image should contain both black and white pixels.\n"
<< tcu::TestLog::EndMessage;
}
else
{
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Verifying that a interpolateAtSample returns different values for different samples.\n"
<< " Render high-frequency function, map result to black/white.\n"
<< " => Resulting image should contain n+1 shades of gray, n = sample count.\n"
<< tcu::TestLog::EndMessage;
}
MultisampleShadeCountRenderCase::init();
}
void InterpolateAtSampleRenderCase::preDraw (void)
{
if (m_indexMode == INDEXING_DYNAMIC)
{
const deInt32 range = m_numTargetSamples;
const deInt32 offset = 1;
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
const deInt32 offsetLoc = gl.getUniformLocation(m_program->getProgram(), "u_offset");
const deInt32 rangeLoc = gl.getUniformLocation(m_program->getProgram(), "u_range");
if (offsetLoc == -1)
throw tcu::TestError("Location of u_offset was -1");
if (rangeLoc == -1)
throw tcu::TestError("Location of u_range was -1");
gl.uniform1i(offsetLoc, 0);
gl.uniform1i(rangeLoc, m_numTargetSamples);
GLU_EXPECT_NO_ERROR(gl.getError(), "set uniforms");
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Set u_offset = " << offset << "\n"
<< "Set u_range = " << range
<< tcu::TestLog::EndMessage;
}
}
std::string InterpolateAtSampleRenderCase::genVertexSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"in highp vec4 a_position;\n";
if (m_iteration == 0)
buf << "out highp float v_input;\n";
else if (m_iteration == 1)
buf << "out highp vec2 v_input;\n";
else if (m_iteration == 2)
buf << "out highp vec3 v_input;\n";
else if (m_iteration == 3)
buf << "out highp vec4 v_input;\n";
else if (m_iteration == 4)
buf << "out highp vec2[2] v_input;\n";
else
DE_ASSERT(false);
buf << "void main (void)\n"
"{\n"
" gl_Position = a_position;\n";
if (m_iteration == 0)
buf << " v_input = a_position.x + exp(a_position.y) + step(0.9, a_position.x)*step(a_position.y, -0.9)*8.0;\n";
else if (m_iteration == 1)
buf << " v_input = a_position.xy;\n";
else if (m_iteration == 2)
buf << " v_input = vec3(a_position.xy, a_position.x * 2.0 - a_position.y);\n";
else if (m_iteration == 3)
buf << " v_input = vec4(a_position.xy, a_position.x * 2.0 - a_position.y, a_position.x*a_position.y);\n";
else if (m_iteration == 4)
buf << " v_input[0] = a_position.yx + vec2(0.5, 0.5);\n"
" v_input[1] = a_position.xy;\n";
else
DE_ASSERT(false);
buf << "}";
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
std::string InterpolateAtSampleRenderCase::genFragmentSource (int numTargetSamples) const
{
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"${GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION}";
if (m_iteration == 0)
buf << "in highp float v_input;\n";
else if (m_iteration == 1)
buf << "in highp vec2 v_input;\n";
else if (m_iteration == 2)
buf << "in highp vec3 v_input;\n";
else if (m_iteration == 3)
buf << "in highp vec4 v_input;\n";
else if (m_iteration == 4)
buf << "in highp vec2[2] v_input;\n";
else
DE_ASSERT(false);
buf << "layout(location = 0) out mediump vec4 fragColor;\n";
if (m_indexMode == INDEXING_DYNAMIC)
buf << "uniform highp int u_offset;\n"
"uniform highp int u_range;\n";
buf << "void main (void)\n"
"{\n"
" mediump int coverage = 0;\n"
"\n";
if (m_indexMode == INDEXING_STATIC)
{
for (int ndx = 0; ndx < numTargetSamples; ++ndx)
{
if (m_iteration == 0)
buf << " highp float sampleInput" << ndx << " = interpolateAtSample(v_input, " << ndx << ");\n";
else if (m_iteration == 1)
buf << " highp vec2 sampleInput" << ndx << " = interpolateAtSample(v_input, " << ndx << ");\n";
else if (m_iteration == 2)
buf << " highp vec3 sampleInput" << ndx << " = interpolateAtSample(v_input, " << ndx << ");\n";
else if (m_iteration == 3)
buf << " highp vec4 sampleInput" << ndx << " = interpolateAtSample(v_input, " << ndx << ");\n";
else if (m_iteration == 4)
buf << " highp vec2 sampleInput" << ndx << " = interpolateAtSample(v_input[1], " << ndx << ");\n";
else
DE_ASSERT(false);
}
buf << "\n";
for (int ndx = 0; ndx < numTargetSamples; ++ndx)
{
if (m_iteration == 0)
buf << " highp float field" << ndx << " = exp(sampleInput" << ndx << ") + sampleInput" << ndx << "*sampleInput" << ndx << ";\n";
else if (m_iteration == 1 || m_iteration == 4)
buf << " highp float field" << ndx << " = dot(sampleInput" << ndx << ", sampleInput" << ndx << ") + dot(21.0 * sampleInput" << ndx << ".xx, sin(3.1 * sampleInput" << ndx << "));\n";
else if (m_iteration == 2)
buf << " highp float field" << ndx << " = dot(sampleInput" << ndx << ".xy, sampleInput" << ndx << ".xy) + dot(21.0 * sampleInput" << ndx << ".zx, sin(3.1 * sampleInput" << ndx << ".zy));\n";
else if (m_iteration == 3)
buf << " highp float field" << ndx << " = dot(sampleInput" << ndx << ".xy, sampleInput" << ndx << ".zw) + dot(21.0 * sampleInput" << ndx << ".zy, sin(3.1 * sampleInput" << ndx << ".zw));\n";
else
DE_ASSERT(false);
}
buf << "\n";
for (int ndx = 0; ndx < numTargetSamples; ++ndx)
buf << " if (fract(field" << ndx << ") <= 0.5)\n"
" ++coverage;\n";
}
else if (m_indexMode == INDEXING_DYNAMIC)
{
buf << " for (int ndx = 0; ndx < " << numTargetSamples << "; ++ndx)\n"
" {\n";
if (m_iteration == 0)
buf << " highp float sampleInput = interpolateAtSample(v_input, (u_offset + ndx) % u_range);\n";
else if (m_iteration == 1)
buf << " highp vec2 sampleInput = interpolateAtSample(v_input, (u_offset + ndx) % u_range);\n";
else if (m_iteration == 2)
buf << " highp vec3 sampleInput = interpolateAtSample(v_input, (u_offset + ndx) % u_range);\n";
else if (m_iteration == 3)
buf << " highp vec4 sampleInput = interpolateAtSample(v_input, (u_offset + ndx) % u_range);\n";
else if (m_iteration == 4)
buf << " highp vec2 sampleInput = interpolateAtSample(v_input[1], (u_offset + ndx) % u_range);\n";
else
DE_ASSERT(false);
if (m_iteration == 0)
buf << " highp float field = exp(sampleInput) + sampleInput*sampleInput;\n";
else if (m_iteration == 1 || m_iteration == 4)
buf << " highp float field = dot(sampleInput, sampleInput) + dot(21.0 * sampleInput.xx, sin(3.1 * sampleInput));\n";
else if (m_iteration == 2)
buf << " highp float field = dot(sampleInput.xy, sampleInput.xy) + dot(21.0 * sampleInput.zx, sin(3.1 * sampleInput.zy));\n";
else if (m_iteration == 3)
buf << " highp float field = dot(sampleInput.xy, sampleInput.zw) + dot(21.0 * sampleInput.zy, sin(3.1 * sampleInput.zw));\n";
else
DE_ASSERT(false);
buf << " if (fract(field) <= 0.5)\n"
" ++coverage;\n"
" }\n";
}
buf << " fragColor = vec4(vec3(float(coverage) / float(" << numTargetSamples << ")), 1.0);\n"
"}";
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
std::string InterpolateAtSampleRenderCase::getIterationDescription (int iteration) const
{
if (iteration == 0)
return "Test with float varying";
else if (iteration < 4)
return "Test with vec" + de::toString(iteration+1) + " varying";
else if (iteration == 4)
return "Test with array varying";
DE_ASSERT(false);
return "";
}
class SingleSampleInterpolateAtSampleCase : public MultisampleShaderRenderUtil::MultisampleRenderCase
{
public:
enum SampleCase
{
SAMPLE_0 = 0,
SAMPLE_N,
SAMPLE_LAST
};
SingleSampleInterpolateAtSampleCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target, SampleCase sampleCase);
virtual ~SingleSampleInterpolateAtSampleCase (void);
void init (void);
private:
enum
{
RENDER_SIZE = 32
};
std::string genVertexSource (int numTargetSamples) const;
std::string genFragmentSource (int numTargetSamples) const;
bool verifyImage (const tcu::Surface& resultImage);
const SampleCase m_sampleCase;
};
SingleSampleInterpolateAtSampleCase::SingleSampleInterpolateAtSampleCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target, SampleCase sampleCase)
: MultisampleShaderRenderUtil::MultisampleRenderCase (context, name, description, numSamples, target, RENDER_SIZE)
, m_sampleCase (sampleCase)
{
DE_ASSERT(numSamples == 0);
DE_ASSERT(sampleCase < SAMPLE_LAST);
}
SingleSampleInterpolateAtSampleCase::~SingleSampleInterpolateAtSampleCase (void)
{
}
void SingleSampleInterpolateAtSampleCase::init (void)
{
// requirements
if (!m_context.getContextInfo().isExtensionSupported("GL_OES_shader_multisample_interpolation") && !glu::contextSupports(m_context.getRenderContext().getType(), glu::ApiType::es(3, 2)))
TCU_THROW(NotSupportedError, "Test requires GL_OES_shader_multisample_interpolation extension");
if (m_renderTarget == TARGET_DEFAULT && m_context.getRenderTarget().getNumSamples() > 1)
TCU_THROW(NotSupportedError, "Non-multisample framebuffer required");
// test purpose and expectations
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Verifying that using interpolateAtSample with multisample buffers not available returns sample evaluated at the center of the pixel.\n"
<< " Interpolate varying containing screen space location.\n"
<< " => fract(screen space location) should be (about) (0.5, 0.5)\n"
<< tcu::TestLog::EndMessage;
MultisampleShaderRenderUtil::MultisampleRenderCase::init();
}
std::string SingleSampleInterpolateAtSampleCase::genVertexSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"in highp vec4 a_position;\n"
"out highp vec2 v_position;\n"
"void main (void)\n"
"{\n"
" gl_Position = a_position;\n"
" v_position = (a_position.xy + vec2(1.0, 1.0)) / 2.0 * vec2(" << (int)RENDER_SIZE << ".0, " << (int)RENDER_SIZE << ".0);\n"
"}\n";
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
std::string SingleSampleInterpolateAtSampleCase::genFragmentSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"${GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION}"
"in highp vec2 v_position;\n"
"layout(location = 0) out mediump vec4 fragColor;\n"
"void main (void)\n"
"{\n"
" const highp float threshold = 0.15625; // 4 subpixel bits. Assume 3 accurate bits + 0.03125 for other errors\n"; // 0.03125 = mediump epsilon when value = 32 (RENDER_SIZE)
if (m_sampleCase == SAMPLE_0)
{
buf << " highp vec2 samplePosition = interpolateAtSample(v_position, 0);\n"
" highp vec2 positionInsideAPixel = fract(samplePosition);\n"
"\n"
" if (abs(positionInsideAPixel.x - 0.5) <= threshold && abs(positionInsideAPixel.y - 0.5) <= threshold)\n"
" fragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" else\n"
" fragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
"}\n";
}
else if (m_sampleCase == SAMPLE_N)
{
buf << " bool allOk = true;\n"
" for (int sampleNdx = 159; sampleNdx < 163; ++sampleNdx)\n"
" {\n"
" highp vec2 samplePosition = interpolateAtSample(v_position, sampleNdx);\n"
" highp vec2 positionInsideAPixel = fract(samplePosition);\n"
" if (abs(positionInsideAPixel.x - 0.5) > threshold || abs(positionInsideAPixel.y - 0.5) > threshold)\n"
" allOk = false;\n"
" }\n"
"\n"
" if (allOk)\n"
" fragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" else\n"
" fragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
"}\n";
}
else
DE_ASSERT(false);
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
bool SingleSampleInterpolateAtSampleCase::verifyImage (const tcu::Surface& resultImage)
{
return verifyGreenImage(resultImage, m_testCtx.getLog());
}
class CentroidRenderCase : public MultisampleShaderRenderUtil::MultisampleRenderCase
{
public:
CentroidRenderCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target, int renderSize);
virtual ~CentroidRenderCase (void);
void init (void);
private:
void setupRenderData (void);
};
CentroidRenderCase::CentroidRenderCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target, int renderSize)
: MultisampleShaderRenderUtil::MultisampleRenderCase(context, name, description, numSamples, target, renderSize)
{
}
CentroidRenderCase::~CentroidRenderCase (void)
{
}
void CentroidRenderCase::init (void)
{
// requirements
if (!m_context.getContextInfo().isExtensionSupported("GL_OES_shader_multisample_interpolation") && !glu::contextSupports(m_context.getRenderContext().getType(), glu::ApiType::es(3, 2)))
TCU_THROW(NotSupportedError, "Test requires GL_OES_shader_multisample_interpolation extension");
MultisampleShaderRenderUtil::MultisampleRenderCase::init();
}
void CentroidRenderCase::setupRenderData (void)
{
const int numTriangles = 200;
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
std::vector<tcu::Vec4> data (numTriangles * 3 * 3);
m_renderMode = GL_TRIANGLES;
m_renderCount = numTriangles * 3;
m_renderSceneDescription = "triangle fan of narrow triangles";
m_renderAttribs["a_position"].offset = 0;
m_renderAttribs["a_position"].stride = (int)sizeof(float[4]) * 3;
m_renderAttribs["a_barycentricsA"].offset = (int)sizeof(float[4]);
m_renderAttribs["a_barycentricsA"].stride = (int)sizeof(float[4]) * 3;
m_renderAttribs["a_barycentricsB"].offset = (int)sizeof(float[4]) * 2;
m_renderAttribs["a_barycentricsB"].stride = (int)sizeof(float[4]) * 3;
for (int triangleNdx = 0; triangleNdx < numTriangles; ++triangleNdx)
{
const float angle = ((float)triangleNdx) / (float)numTriangles * 2.0f * DE_PI;
const float nextAngle = ((float)triangleNdx + 1.0f) / (float)numTriangles * 2.0f * DE_PI;
data[(triangleNdx * 3 + 0) * 3 + 0] = tcu::Vec4(0.2f, -0.3f, 0.0f, 1.0f);
data[(triangleNdx * 3 + 0) * 3 + 1] = tcu::Vec4(1.0f, 0.0f, 0.0f, 0.0f);
data[(triangleNdx * 3 + 0) * 3 + 2] = tcu::Vec4(1.0f, 0.0f, 0.0f, 0.0f);
data[(triangleNdx * 3 + 1) * 3 + 0] = tcu::Vec4(2.0f * deFloatCos(angle), 2.0f * deFloatSin(angle), 0.0f, 1.0f);
data[(triangleNdx * 3 + 1) * 3 + 1] = tcu::Vec4(0.0f, 1.0f, 0.0f, 0.0f);
data[(triangleNdx * 3 + 1) * 3 + 2] = tcu::Vec4(0.0f, 1.0f, 0.0f, 0.0f);
data[(triangleNdx * 3 + 2) * 3 + 0] = tcu::Vec4(2.0f * deFloatCos(nextAngle), 2.0f * deFloatSin(nextAngle), 0.0f, 1.0f);
data[(triangleNdx * 3 + 2) * 3 + 1] = tcu::Vec4(0.0f, 0.0f, 1.0f, 0.0f);
data[(triangleNdx * 3 + 2) * 3 + 2] = tcu::Vec4(0.0f, 0.0f, 1.0f, 0.0f);
}
gl.bindBuffer(GL_ARRAY_BUFFER, m_buffer);
gl.bufferData(GL_ARRAY_BUFFER, (glw::GLsizeiptr)(data.size() * sizeof(tcu::Vec4)), data[0].getPtr(), GL_STATIC_DRAW);
}
class CentroidQualifierAtSampleCase : public CentroidRenderCase
{
public:
CentroidQualifierAtSampleCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target);
virtual ~CentroidQualifierAtSampleCase (void);
void init (void);
private:
enum
{
RENDER_SIZE = 128
};
std::string genVertexSource (int numTargetSamples) const;
std::string genFragmentSource (int numTargetSamples) const;
bool verifyImage (const tcu::Surface& resultImage);
};
CentroidQualifierAtSampleCase::CentroidQualifierAtSampleCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target)
: CentroidRenderCase(context, name, description, numSamples, target, RENDER_SIZE)
{
}
CentroidQualifierAtSampleCase::~CentroidQualifierAtSampleCase (void)
{
}
void CentroidQualifierAtSampleCase::init (void)
{
// test purpose and expectations
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Verifying that interpolateAtSample ignores the centroid-qualifier.\n"
<< " Draw a fan of narrow triangles (large number of pixels on the edges).\n"
<< " Set varyings 'barycentricsA' and 'barycentricsB' to contain barycentric coordinates.\n"
<< " Add centroid-qualifier for barycentricsB.\n"
<< " => interpolateAtSample(barycentricsB, N) ~= interpolateAtSample(barycentricsA, N)\n"
<< tcu::TestLog::EndMessage;
CentroidRenderCase::init();
}
std::string CentroidQualifierAtSampleCase::genVertexSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"in highp vec4 a_position;\n"
"in highp vec4 a_barycentricsA;\n"
"in highp vec4 a_barycentricsB;\n"
"out highp vec3 v_barycentricsA;\n"
"centroid out highp vec3 v_barycentricsB;\n"
"void main (void)\n"
"{\n"
" gl_Position = a_position;\n"
" v_barycentricsA = a_barycentricsA.xyz;\n"
" v_barycentricsB = a_barycentricsB.xyz;\n"
"}\n";
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
std::string CentroidQualifierAtSampleCase::genFragmentSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"${GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION}"
"in highp vec3 v_barycentricsA;\n"
"centroid in highp vec3 v_barycentricsB;\n"
"layout(location = 0) out mediump vec4 fragColor;\n"
"void main (void)\n"
"{\n"
" const highp float threshold = 0.0005;\n"
" bool allOk = true;\n"
"\n"
" for (int sampleNdx = 0; sampleNdx < " << numTargetSamples << "; ++sampleNdx)\n"
" {\n"
" highp vec3 sampleA = interpolateAtSample(v_barycentricsA, sampleNdx);\n"
" highp vec3 sampleB = interpolateAtSample(v_barycentricsB, sampleNdx);\n"
" bool valuesEqual = all(lessThan(abs(sampleA - sampleB), vec3(threshold)));\n"
" if (!valuesEqual)\n"
" allOk = false;\n"
" }\n"
"\n"
" if (allOk)\n"
" fragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" else\n"
" fragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
"}\n";
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
bool CentroidQualifierAtSampleCase::verifyImage (const tcu::Surface& resultImage)
{
return verifyGreenImage(resultImage, m_testCtx.getLog());
}
class InterpolateAtSampleIDCase : public MultisampleShaderRenderUtil::MultisampleRenderCase
{
public:
InterpolateAtSampleIDCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target);
virtual ~InterpolateAtSampleIDCase (void);
void init (void);
private:
enum
{
RENDER_SIZE = 32
};
std::string genVertexSource (int numTargetSamples) const;
std::string genFragmentSource (int numTargetSamples) const;
bool verifyImage (const tcu::Surface& resultImage);
};
InterpolateAtSampleIDCase::InterpolateAtSampleIDCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target)
: MultisampleShaderRenderUtil::MultisampleRenderCase(context, name, description, numSamples, target, RENDER_SIZE)
{
}
InterpolateAtSampleIDCase::~InterpolateAtSampleIDCase (void)
{
}
void InterpolateAtSampleIDCase::init (void)
{
// requirements
if (!m_context.getContextInfo().isExtensionSupported("GL_OES_shader_multisample_interpolation") && !glu::contextSupports(m_context.getRenderContext().getType(), glu::ApiType::es(3, 2)))
TCU_THROW(NotSupportedError, "Test requires GL_OES_shader_multisample_interpolation extension");
if (!m_context.getContextInfo().isExtensionSupported("GL_OES_sample_variables") && !glu::contextSupports(m_context.getRenderContext().getType(), glu::ApiType::es(3, 2)))
TCU_THROW(NotSupportedError, "Test requires GL_OES_sample_variables extension");
// test purpose and expectations
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Verifying that interpolateAtSample with the sample set to the current sampleID returns consistent values.\n"
<< " Interpolate varying containing screen space location.\n"
<< " => interpolateAtSample(varying, sampleID) = varying"
<< tcu::TestLog::EndMessage;
MultisampleShaderRenderUtil::MultisampleRenderCase::init();
}
std::string InterpolateAtSampleIDCase::genVertexSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"${GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION}"
"in highp vec4 a_position;\n"
"sample out highp vec2 v_screenPosition;\n"
"void main (void)\n"
"{\n"
" gl_Position = a_position;\n"
" v_screenPosition = (a_position.xy + vec2(1.0, 1.0)) / 2.0 * vec2(" << (int)RENDER_SIZE << ".0, " << (int)RENDER_SIZE << ".0);\n"
"}\n";
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
std::string InterpolateAtSampleIDCase::genFragmentSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"${GLSL_EXT_SAMPLE_VARIABLES}"
"${GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION}"
"sample in highp vec2 v_screenPosition;\n"
"layout(location = 0) out mediump vec4 fragColor;\n"
"void main (void)\n"
"{\n"
" const highp float threshold = 0.15625; // 4 subpixel bits. Assume 3 accurate bits + 0.03125 for other errors\n" // 0.03125 = mediump epsilon when value = 32 (RENDER_SIZE)
"\n"
" highp vec2 offsetValue = interpolateAtSample(v_screenPosition, gl_SampleID);\n"
" highp vec2 refValue = v_screenPosition;\n"
"\n"
" bool valuesEqual = all(lessThan(abs(offsetValue - refValue), vec2(threshold)));\n"
" if (valuesEqual)\n"
" fragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" else\n"
" fragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
"}\n";
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
bool InterpolateAtSampleIDCase::verifyImage (const tcu::Surface& resultImage)
{
return verifyGreenImage(resultImage, m_testCtx.getLog());
}
class InterpolateAtCentroidCase : public CentroidRenderCase
{
public:
enum TestType
{
TEST_CONSISTENCY = 0,
TEST_ARRAY_ELEMENT,
TEST_LAST
};
InterpolateAtCentroidCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target, TestType type);
virtual ~InterpolateAtCentroidCase (void);
void init (void);
private:
enum
{
RENDER_SIZE = 128
};
std::string genVertexSource (int numTargetSamples) const;
std::string genFragmentSource (int numTargetSamples) const;
bool verifyImage (const tcu::Surface& resultImage);
const TestType m_type;
};
InterpolateAtCentroidCase::InterpolateAtCentroidCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target, TestType type)
: CentroidRenderCase (context, name, description, numSamples, target, RENDER_SIZE)
, m_type (type)
{
}
InterpolateAtCentroidCase::~InterpolateAtCentroidCase (void)
{
}
void InterpolateAtCentroidCase::init (void)
{
// test purpose and expectations
if (m_type == TEST_CONSISTENCY)
{
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Verifying that interpolateAtCentroid does not return different values than a corresponding centroid-qualified varying.\n"
<< " Draw a fan of narrow triangles (large number of pixels on the edges).\n"
<< " Set varyings 'barycentricsA' and 'barycentricsB' to contain barycentric coordinates.\n"
<< " Add centroid-qualifier for barycentricsB.\n"
<< " => interpolateAtCentroid(barycentricsA) ~= barycentricsB\n"
<< tcu::TestLog::EndMessage;
}
else if (m_type == TEST_ARRAY_ELEMENT)
{
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Testing interpolateAtCentroid with element of array as an argument."
<< tcu::TestLog::EndMessage;
}
else
DE_ASSERT(false);
CentroidRenderCase::init();
}
std::string InterpolateAtCentroidCase::genVertexSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
std::ostringstream buf;
if (m_type == TEST_CONSISTENCY)
buf << "${GLSL_VERSION_DECL}\n"
"in highp vec4 a_position;\n"
"in highp vec4 a_barycentricsA;\n"
"in highp vec4 a_barycentricsB;\n"
"out highp vec3 v_barycentricsA;\n"
"centroid out highp vec3 v_barycentricsB;\n"
"void main (void)\n"
"{\n"
" gl_Position = a_position;\n"
" v_barycentricsA = a_barycentricsA.xyz;\n"
" v_barycentricsB = a_barycentricsB.xyz;\n"
"}\n";
else if (m_type == TEST_ARRAY_ELEMENT)
buf << "${GLSL_VERSION_DECL}\n"
"in highp vec4 a_position;\n"
"in highp vec4 a_barycentricsA;\n"
"in highp vec4 a_barycentricsB;\n"
"out highp vec3[2] v_barycentrics;\n"
"void main (void)\n"
"{\n"
" gl_Position = a_position;\n"
" v_barycentrics[0] = a_barycentricsA.xyz;\n"
" v_barycentrics[1] = a_barycentricsB.xyz;\n"
"}\n";
else
DE_ASSERT(false);
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
std::string InterpolateAtCentroidCase::genFragmentSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
std::ostringstream buf;
if (m_type == TEST_CONSISTENCY)
buf << "${GLSL_VERSION_DECL}\n"
"${GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION}"
"in highp vec3 v_barycentricsA;\n"
"centroid in highp vec3 v_barycentricsB;\n"
"layout(location = 0) out highp vec4 fragColor;\n"
"void main (void)\n"
"{\n"
" const highp float threshold = 0.0005;\n"
"\n"
" highp vec3 centroidASampled = interpolateAtCentroid(v_barycentricsA);\n"
" bool valuesEqual = all(lessThan(abs(centroidASampled - v_barycentricsB), vec3(threshold)));\n"
" bool centroidAIsInvalid = any(greaterThan(centroidASampled, vec3(1.0))) ||\n"
" any(lessThan(centroidASampled, vec3(0.0)));\n"
" bool centroidBIsInvalid = any(greaterThan(v_barycentricsB, vec3(1.0))) ||\n"
" any(lessThan(v_barycentricsB, vec3(0.0)));\n"
"\n"
" if (valuesEqual && !centroidAIsInvalid && !centroidBIsInvalid)\n"
" fragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" else if (centroidAIsInvalid || centroidBIsInvalid)\n"
" fragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
" else\n"
" fragColor = vec4(1.0, 1.0, 0.0, 1.0);\n"
"}\n";
else if (m_type == TEST_ARRAY_ELEMENT)
buf << "${GLSL_VERSION_DECL}\n"
"${GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION}"
"in highp vec3[2] v_barycentrics;\n"
"layout(location = 0) out mediump vec4 fragColor;\n"
"void main (void)\n"
"{\n"
" const highp float threshold = 0.0005;\n"
"\n"
" highp vec3 centroidInterpolated = interpolateAtCentroid(v_barycentrics[1]);\n"
" bool centroidIsInvalid = any(greaterThan(centroidInterpolated, vec3(1.0))) ||\n"
" any(lessThan(centroidInterpolated, vec3(0.0)));\n"
"\n"
" if (!centroidIsInvalid)\n"
" fragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" else\n"
" fragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
"}\n";
else
DE_ASSERT(false);
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
bool InterpolateAtCentroidCase::verifyImage (const tcu::Surface& resultImage)
{
return verifyGreenImage(resultImage, m_testCtx.getLog());
}
class InterpolateAtOffsetCase : public MultisampleShaderRenderUtil::MultisampleRenderCase
{
public:
enum TestType
{
TEST_QUALIFIER_NONE = 0,
TEST_QUALIFIER_CENTROID,
TEST_QUALIFIER_SAMPLE,
TEST_ARRAY_ELEMENT,
TEST_LAST
};
InterpolateAtOffsetCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target, TestType testType);
virtual ~InterpolateAtOffsetCase (void);
void init (void);
private:
enum
{
RENDER_SIZE = 32
};
std::string genVertexSource (int numTargetSamples) const;
std::string genFragmentSource (int numTargetSamples) const;
bool verifyImage (const tcu::Surface& resultImage);
const TestType m_testType;
};
InterpolateAtOffsetCase::InterpolateAtOffsetCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target, TestType testType)
: MultisampleShaderRenderUtil::MultisampleRenderCase (context, name, description, numSamples, target, RENDER_SIZE)
, m_testType (testType)
{
DE_ASSERT(testType < TEST_LAST);
}
InterpolateAtOffsetCase::~InterpolateAtOffsetCase (void)
{
}
void InterpolateAtOffsetCase::init (void)
{
// requirements
if (!m_context.getContextInfo().isExtensionSupported("GL_OES_shader_multisample_interpolation") && !glu::contextSupports(m_context.getRenderContext().getType(), glu::ApiType::es(3, 2)))
TCU_THROW(NotSupportedError, "Test requires GL_OES_shader_multisample_interpolation extension");
// test purpose and expectations
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Verifying that interpolateAtOffset returns correct values.\n"
<< " Interpolate varying containing screen space location.\n"
<< " => interpolateAtOffset(varying, offset) should be \"varying value at the pixel center\" + offset"
<< tcu::TestLog::EndMessage;
MultisampleShaderRenderUtil::MultisampleRenderCase::init();
}
std::string InterpolateAtOffsetCase::genVertexSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
<< "${GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION}"
<< "in highp vec4 a_position;\n";
if (m_testType == TEST_QUALIFIER_NONE || m_testType == TEST_QUALIFIER_CENTROID || m_testType == TEST_QUALIFIER_SAMPLE)
{
const char* const qualifier = (m_testType == TEST_QUALIFIER_CENTROID) ? ("centroid ") : (m_testType == TEST_QUALIFIER_SAMPLE) ? ("sample ") : ("");
buf << qualifier << "out highp vec2 v_screenPosition;\n"
<< qualifier << "out highp vec2 v_offset;\n";
}
else if (m_testType == TEST_ARRAY_ELEMENT)
{
buf << "out highp vec2[2] v_screenPosition;\n"
<< "out highp vec2 v_offset;\n";
}
else
DE_ASSERT(false);
buf << "void main (void)\n"
<< "{\n"
<< " gl_Position = a_position;\n";
if (m_testType != TEST_ARRAY_ELEMENT)
buf << " v_screenPosition = (a_position.xy + vec2(1.0, 1.0)) / 2.0 * vec2(" << (int)RENDER_SIZE << ".0, " << (int)RENDER_SIZE << ".0);\n";
else
buf << " v_screenPosition[0] = a_position.xy; // not used\n"
" v_screenPosition[1] = (a_position.xy + vec2(1.0, 1.0)) / 2.0 * vec2(" << (int)RENDER_SIZE << ".0, " << (int)RENDER_SIZE << ".0);\n";
buf << " v_offset = a_position.xy * 0.5f;\n"
<< "}\n";
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
std::string InterpolateAtOffsetCase::genFragmentSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
const char* const arrayIndexing = (m_testType == TEST_ARRAY_ELEMENT) ? ("[1]") : ("");
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"${GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION}";
if (m_testType == TEST_QUALIFIER_NONE || m_testType == TEST_QUALIFIER_CENTROID || m_testType == TEST_QUALIFIER_SAMPLE)
{
const char* const qualifier = (m_testType == TEST_QUALIFIER_CENTROID) ? ("centroid ") : (m_testType == TEST_QUALIFIER_SAMPLE) ? ("sample ") : ("");
buf << qualifier << "in highp vec2 v_screenPosition;\n"
<< qualifier << "in highp vec2 v_offset;\n";
}
else if (m_testType == TEST_ARRAY_ELEMENT)
{
buf << "in highp vec2[2] v_screenPosition;\n"
<< "in highp vec2 v_offset;\n";
}
else
DE_ASSERT(false);
buf << "layout(location = 0) out mediump vec4 fragColor;\n"
"void main (void)\n"
"{\n"
" const highp float threshold = 0.15625; // 4 subpixel bits. Assume 3 accurate bits + 0.03125 for other errors\n" // 0.03125 = mediump epsilon when value = 32 (RENDER_SIZE)
"\n"
" highp vec2 pixelCenter = floor(v_screenPosition" << arrayIndexing << ") + vec2(0.5, 0.5);\n"
" highp vec2 offsetValue = interpolateAtOffset(v_screenPosition" << arrayIndexing << ", v_offset);\n"
" highp vec2 refValue = pixelCenter + v_offset;\n"
"\n"
" bool valuesEqual = all(lessThan(abs(offsetValue - refValue), vec2(threshold)));\n"
" if (valuesEqual)\n"
" fragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" else\n"
" fragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
"}\n";
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
bool InterpolateAtOffsetCase::verifyImage (const tcu::Surface& resultImage)
{
return verifyGreenImage(resultImage, m_testCtx.getLog());
}
class InterpolateAtSamplePositionCase : public MultisampleShaderRenderUtil::MultisampleRenderCase
{
public:
InterpolateAtSamplePositionCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target);
virtual ~InterpolateAtSamplePositionCase (void);
void init (void);
private:
enum
{
RENDER_SIZE = 32
};
std::string genVertexSource (int numTargetSamples) const;
std::string genFragmentSource (int numTargetSamples) const;
bool verifyImage (const tcu::Surface& resultImage);
};
InterpolateAtSamplePositionCase::InterpolateAtSamplePositionCase (Context& context, const char* name, const char* description, int numSamples, RenderTarget target)
: MultisampleShaderRenderUtil::MultisampleRenderCase(context, name, description, numSamples, target, RENDER_SIZE)
{
}
InterpolateAtSamplePositionCase::~InterpolateAtSamplePositionCase (void)
{
}
void InterpolateAtSamplePositionCase::init (void)
{
// requirements
if (!m_context.getContextInfo().isExtensionSupported("GL_OES_shader_multisample_interpolation") && !glu::contextSupports(m_context.getRenderContext().getType(), glu::ApiType::es(3, 2)))
TCU_THROW(NotSupportedError, "Test requires GL_OES_shader_multisample_interpolation extension");
if (!m_context.getContextInfo().isExtensionSupported("GL_OES_sample_variables") && !glu::contextSupports(m_context.getRenderContext().getType(), glu::ApiType::es(3, 2)))
TCU_THROW(NotSupportedError, "Test requires GL_OES_sample_variables extension");
// test purpose and expectations
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Verifying that interpolateAtOffset with the offset of current sample position returns consistent values.\n"
<< " Interpolate varying containing screen space location.\n"
<< " => interpolateAtOffset(varying, currentOffset) = varying"
<< tcu::TestLog::EndMessage;
MultisampleShaderRenderUtil::MultisampleRenderCase::init();
}
std::string InterpolateAtSamplePositionCase::genVertexSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"${GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION}"
"in highp vec4 a_position;\n"
"sample out highp vec2 v_screenPosition;\n"
"void main (void)\n"
"{\n"
" gl_Position = a_position;\n"
" v_screenPosition = (a_position.xy + vec2(1.0, 1.0)) / 2.0 * vec2(" << (int)RENDER_SIZE << ".0, " << (int)RENDER_SIZE << ".0);\n"
"}\n";
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
std::string InterpolateAtSamplePositionCase::genFragmentSource (int numTargetSamples) const
{
DE_UNREF(numTargetSamples);
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"${GLSL_EXT_SAMPLE_VARIABLES}"
"${GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION}"
"sample in highp vec2 v_screenPosition;\n"
"layout(location = 0) out mediump vec4 fragColor;\n"
"void main (void)\n"
"{\n"
" const highp float threshold = 0.15625; // 4 subpixel bits. Assume 3 accurate bits + 0.03125 for other errors\n" // 0.03125 = mediump epsilon when value = 32 (RENDER_SIZE)
"\n"
" highp vec2 offset = gl_SamplePosition - vec2(0.5, 0.5);\n"
" highp vec2 offsetValue = interpolateAtOffset(v_screenPosition, offset);\n"
" highp vec2 refValue = v_screenPosition;\n"
"\n"
" bool valuesEqual = all(lessThan(abs(offsetValue - refValue), vec2(threshold)));\n"
" if (valuesEqual)\n"
" fragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
" else\n"
" fragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
"}\n";
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
bool InterpolateAtSamplePositionCase::verifyImage (const tcu::Surface& resultImage)
{
return verifyGreenImage(resultImage, m_testCtx.getLog());
}
class NegativeCompileInterpolationCase : public TestCase
{
public:
enum CaseType
{
CASE_VEC4_IDENTITY_SWIZZLE = 0,
CASE_VEC4_CROP_SWIZZLE,
CASE_VEC4_MIXED_SWIZZLE,
CASE_INTERPOLATE_IVEC4,
CASE_INTERPOLATE_UVEC4,
CASE_INTERPOLATE_ARRAY,
CASE_INTERPOLATE_STRUCT,
CASE_INTERPOLATE_STRUCT_MEMBER,
CASE_INTERPOLATE_LOCAL,
CASE_INTERPOLATE_GLOBAL,
CASE_INTERPOLATE_CONSTANT,
CASE_LAST
};
enum InterpolatorType
{
INTERPOLATE_AT_SAMPLE = 0,
INTERPOLATE_AT_CENTROID,
INTERPOLATE_AT_OFFSET,
INTERPOLATE_LAST
};
NegativeCompileInterpolationCase (Context& context, const char* name, const char* description, CaseType caseType, InterpolatorType interpolator);
private:
void init (void);
IterateResult iterate (void);
std::string genShaderSource (void) const;
const CaseType m_caseType;
const InterpolatorType m_interpolation;
};
NegativeCompileInterpolationCase::NegativeCompileInterpolationCase (Context& context, const char* name, const char* description, CaseType caseType, InterpolatorType interpolator)
: TestCase (context, name, description)
, m_caseType (caseType)
, m_interpolation (interpolator)
{
DE_ASSERT(m_caseType < CASE_LAST);
DE_ASSERT(m_interpolation < INTERPOLATE_LAST);
}
void NegativeCompileInterpolationCase::init (void)
{
if (!m_context.getContextInfo().isExtensionSupported("GL_OES_shader_multisample_interpolation") && !glu::contextSupports(m_context.getRenderContext().getType(), glu::ApiType::es(3, 2)))
TCU_THROW(NotSupportedError, "Test requires GL_OES_shader_multisample_interpolation extension");
m_testCtx.getLog() << tcu::TestLog::Message << "Trying to compile illegal shader, expecting compile to fail." << tcu::TestLog::EndMessage;
}
NegativeCompileInterpolationCase::IterateResult NegativeCompileInterpolationCase::iterate (void)
{
const std::string source = genShaderSource();
glu::Shader shader (m_context.getRenderContext(), glu::SHADERTYPE_FRAGMENT);
const char* const sourceStrPtr = source.c_str();
m_testCtx.getLog() << tcu::TestLog::Message
<< "Fragment shader source:"
<< tcu::TestLog::EndMessage
<< tcu::TestLog::KernelSource(source);
shader.setSources(1, &sourceStrPtr, DE_NULL);
shader.compile();
m_testCtx.getLog() << tcu::TestLog::Message
<< "Info log:"
<< tcu::TestLog::EndMessage
<< tcu::TestLog::KernelSource(shader.getInfoLog());
if (shader.getCompileStatus())
{
m_testCtx.getLog() << tcu::TestLog::Message << "ERROR: Illegal shader compiled successfully." << tcu::TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Unexpected compile status");
}
else
{
m_testCtx.getLog() << tcu::TestLog::Message << "Compile failed as expected." << tcu::TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
}
return STOP;
}
std::string NegativeCompileInterpolationCase::genShaderSource (void) const
{
std::ostringstream buf;
std::string interpolation;
const char* interpolationTemplate;
const char* description;
const char* globalDeclarations = "";
const char* localDeclarations = "";
const char* interpolationTarget = "";
const char* postSelector = "";
switch (m_caseType)
{
case CASE_VEC4_IDENTITY_SWIZZLE:
globalDeclarations = "in highp vec4 v_var;\n";
interpolationTarget = "v_var.xyzw";
description = "component selection is illegal";
break;
case CASE_VEC4_CROP_SWIZZLE:
globalDeclarations = "in highp vec4 v_var;\n";
interpolationTarget = "v_var.xy";
postSelector = ".x";
description = "component selection is illegal";
break;
case CASE_VEC4_MIXED_SWIZZLE:
globalDeclarations = "in highp vec4 v_var;\n";
interpolationTarget = "v_var.yzxw";
description = "component selection is illegal";
break;
case CASE_INTERPOLATE_IVEC4:
globalDeclarations = "flat in highp ivec4 v_var;\n";
interpolationTarget = "v_var";
description = "no overload for ivec";
break;
case CASE_INTERPOLATE_UVEC4:
globalDeclarations = "flat in highp uvec4 v_var;\n";
interpolationTarget = "v_var";
description = "no overload for uvec";
break;
case CASE_INTERPOLATE_ARRAY:
globalDeclarations = "in highp float v_var[2];\n";
interpolationTarget = "v_var";
postSelector = "[1]";
description = "no overload for arrays";
break;
case CASE_INTERPOLATE_STRUCT:
case CASE_INTERPOLATE_STRUCT_MEMBER:
globalDeclarations = "struct S\n"
"{\n"
" highp float a;\n"
" highp float b;\n"
"};\n"
"in S v_var;\n";
interpolationTarget = (m_caseType == CASE_INTERPOLATE_STRUCT) ? ("v_var") : ("v_var.a");
postSelector = (m_caseType == CASE_INTERPOLATE_STRUCT) ? (".a") : ("");
description = (m_caseType == CASE_INTERPOLATE_STRUCT) ? ("no overload for this type") : ("<interpolant> is not an input variable (just a member of)");
break;
case CASE_INTERPOLATE_LOCAL:
localDeclarations = " highp vec4 local_var = gl_FragCoord;\n";
interpolationTarget = "local_var";
description = "<interpolant> is not an input variable";
break;
case CASE_INTERPOLATE_GLOBAL:
globalDeclarations = "highp vec4 global_var;\n";
localDeclarations = " global_var = gl_FragCoord;\n";
interpolationTarget = "global_var";
description = "<interpolant> is not an input variable";
break;
case CASE_INTERPOLATE_CONSTANT:
globalDeclarations = "const highp vec4 const_var = vec4(0.2);\n";
interpolationTarget = "const_var";
description = "<interpolant> is not an input variable";
break;
default:
DE_ASSERT(false);
return "";
}
switch (m_interpolation)
{
case INTERPOLATE_AT_SAMPLE:
interpolationTemplate = "interpolateAtSample(${TARGET}, 0)${POST_SELECTOR}";
break;
case INTERPOLATE_AT_CENTROID:
interpolationTemplate = "interpolateAtCentroid(${TARGET})${POST_SELECTOR}";
break;
case INTERPOLATE_AT_OFFSET:
interpolationTemplate = "interpolateAtOffset(${TARGET}, vec2(0.2, 0.2))${POST_SELECTOR}";
break;
default:
DE_ASSERT(false);
return "";
}
{
std::map<std::string, std::string> args;
args["TARGET"] = interpolationTarget;
args["POST_SELECTOR"] = postSelector;
interpolation = tcu::StringTemplate(interpolationTemplate).specialize(args);
}
buf << glu::getGLSLVersionDeclaration(glu::getContextTypeGLSLVersion(m_context.getRenderContext().getType())) << "\n"
<< "${GLSL_EXT_SHADER_MULTISAMPLE_INTERPOLATION}"
<< globalDeclarations
<< "layout(location = 0) out mediump vec4 fragColor;\n"
"void main (void)\n"
"{\n"
<< localDeclarations
<< " fragColor = vec4(" << interpolation << "); // " << description << "\n"
"}\n";
return specializeShader(buf.str(), m_context.getRenderContext().getType());
}
} // anonymous
ShaderMultisampleInterpolationTests::ShaderMultisampleInterpolationTests (Context& context)
: TestCaseGroup(context, "multisample_interpolation", "Test multisample interpolation")
{
}
ShaderMultisampleInterpolationTests::~ShaderMultisampleInterpolationTests (void)
{
}
void ShaderMultisampleInterpolationTests::init (void)
{
using namespace MultisampleShaderRenderUtil;
static const struct RenderTarget
{
const char* name;
const char* desc;
int numSamples;
MultisampleRenderCase::RenderTarget target;
} targets[] =
{
{ "default_framebuffer", "Test with default framebuffer", 0, MultisampleRenderCase::TARGET_DEFAULT },
{ "singlesample_texture", "Test with singlesample texture", 0, MultisampleRenderCase::TARGET_TEXTURE },
{ "multisample_texture_1", "Test with multisample texture", 1, MultisampleRenderCase::TARGET_TEXTURE },
{ "multisample_texture_2", "Test with multisample texture", 2, MultisampleRenderCase::TARGET_TEXTURE },
{ "multisample_texture_4", "Test with multisample texture", 4, MultisampleRenderCase::TARGET_TEXTURE },
{ "multisample_texture_8", "Test with multisample texture", 8, MultisampleRenderCase::TARGET_TEXTURE },
{ "multisample_texture_16", "Test with multisample texture", 16, MultisampleRenderCase::TARGET_TEXTURE },
{ "singlesample_rbo", "Test with singlesample rbo", 0, MultisampleRenderCase::TARGET_RENDERBUFFER },
{ "multisample_rbo_1", "Test with multisample rbo", 1, MultisampleRenderCase::TARGET_RENDERBUFFER },
{ "multisample_rbo_2", "Test with multisample rbo", 2, MultisampleRenderCase::TARGET_RENDERBUFFER },
{ "multisample_rbo_4", "Test with multisample rbo", 4, MultisampleRenderCase::TARGET_RENDERBUFFER },
{ "multisample_rbo_8", "Test with multisample rbo", 8, MultisampleRenderCase::TARGET_RENDERBUFFER },
{ "multisample_rbo_16", "Test with multisample rbo", 16, MultisampleRenderCase::TARGET_RENDERBUFFER },
};
static const struct
{
const char* name;
const char* description;
NegativeCompileInterpolationCase::CaseType caseType;
} negativeCompileCases[] =
{
{ "vec4_identity_swizzle", "use identity swizzle", NegativeCompileInterpolationCase::CASE_VEC4_IDENTITY_SWIZZLE },
{ "vec4_crop_swizzle", "use cropped identity swizzle", NegativeCompileInterpolationCase::CASE_VEC4_CROP_SWIZZLE },
{ "vec4_mixed_swizzle", "use swizzle", NegativeCompileInterpolationCase::CASE_VEC4_MIXED_SWIZZLE },
{ "interpolate_ivec4", "interpolate integer variable", NegativeCompileInterpolationCase::CASE_INTERPOLATE_IVEC4 },
{ "interpolate_uvec4", "interpolate integer variable", NegativeCompileInterpolationCase::CASE_INTERPOLATE_UVEC4 },
{ "interpolate_array", "interpolate whole array", NegativeCompileInterpolationCase::CASE_INTERPOLATE_ARRAY },
{ "interpolate_struct", "interpolate whole struct", NegativeCompileInterpolationCase::CASE_INTERPOLATE_STRUCT },
{ "interpolate_struct_member", "interpolate struct member", NegativeCompileInterpolationCase::CASE_INTERPOLATE_STRUCT_MEMBER },
{ "interpolate_local", "interpolate local variable", NegativeCompileInterpolationCase::CASE_INTERPOLATE_LOCAL },
{ "interpolate_global", "interpolate global variable", NegativeCompileInterpolationCase::CASE_INTERPOLATE_GLOBAL },
{ "interpolate_constant", "interpolate constant variable", NegativeCompileInterpolationCase::CASE_INTERPOLATE_CONSTANT },
};
// .sample_qualifier
{
tcu::TestCaseGroup* const sampleQualifierGroup = new tcu::TestCaseGroup(m_testCtx, "sample_qualifier", "Test sample qualifier");
addChild(sampleQualifierGroup);
for (int targetNdx = 0; targetNdx < DE_LENGTH_OF_ARRAY(targets); ++targetNdx)
sampleQualifierGroup->addChild(new SampleQualifierRenderCase(m_context, targets[targetNdx].name, targets[targetNdx].desc, targets[targetNdx].numSamples, targets[targetNdx].target));
}
// .interpolate_at_sample
{
tcu::TestCaseGroup* const interpolateAtSampleGroup = new tcu::TestCaseGroup(m_testCtx, "interpolate_at_sample", "Test interpolateAtSample");
addChild(interpolateAtSampleGroup);
// .static_sample_number
{
tcu::TestCaseGroup* const group = new tcu::TestCaseGroup(m_testCtx, "static_sample_number", "Test interpolateAtSample sample number");
interpolateAtSampleGroup->addChild(group);
for (int targetNdx = 0; targetNdx < DE_LENGTH_OF_ARRAY(targets); ++targetNdx)
group->addChild(new InterpolateAtSampleRenderCase(m_context, targets[targetNdx].name, targets[targetNdx].desc, targets[targetNdx].numSamples, targets[targetNdx].target, InterpolateAtSampleRenderCase::INDEXING_STATIC));
}
// .dynamic_sample_number
{
tcu::TestCaseGroup* const group = new tcu::TestCaseGroup(m_testCtx, "dynamic_sample_number", "Test interpolateAtSample sample number");
interpolateAtSampleGroup->addChild(group);
for (int targetNdx = 0; targetNdx < DE_LENGTH_OF_ARRAY(targets); ++targetNdx)
group->addChild(new InterpolateAtSampleRenderCase(m_context, targets[targetNdx].name, targets[targetNdx].desc, targets[targetNdx].numSamples, targets[targetNdx].target, InterpolateAtSampleRenderCase::INDEXING_DYNAMIC));
}
// .non_multisample_buffer
{
tcu::TestCaseGroup* const group = new tcu::TestCaseGroup(m_testCtx, "non_multisample_buffer", "Test interpolateAtSample with non-multisample buffers");
interpolateAtSampleGroup->addChild(group);
for (int targetNdx = 0; targetNdx < DE_LENGTH_OF_ARRAY(targets); ++targetNdx)
if (targets[targetNdx].numSamples == 0)
group->addChild(new SingleSampleInterpolateAtSampleCase(m_context, std::string("sample_0_").append(targets[targetNdx].name).c_str(), targets[targetNdx].desc, targets[targetNdx].numSamples, targets[targetNdx].target, SingleSampleInterpolateAtSampleCase::SAMPLE_0));
for (int targetNdx = 0; targetNdx < DE_LENGTH_OF_ARRAY(targets); ++targetNdx)
if (targets[targetNdx].numSamples == 0)
group->addChild(new SingleSampleInterpolateAtSampleCase(m_context, std::string("sample_n_").append(targets[targetNdx].name).c_str(), targets[targetNdx].desc, targets[targetNdx].numSamples, targets[targetNdx].target, SingleSampleInterpolateAtSampleCase::SAMPLE_N));
}
// .centroid_qualifier
{
tcu::TestCaseGroup* const group = new tcu::TestCaseGroup(m_testCtx, "centroid_qualified", "Test interpolateAtSample with centroid qualified varying");
interpolateAtSampleGroup->addChild(group);
for (int targetNdx = 0; targetNdx < DE_LENGTH_OF_ARRAY(targets); ++targetNdx)
group->addChild(new CentroidQualifierAtSampleCase(m_context, targets[targetNdx].name, targets[targetNdx].desc, targets[targetNdx].numSamples, targets[targetNdx].target));
}
// .at_sample_id
{
tcu::TestCaseGroup* const group = new tcu::TestCaseGroup(m_testCtx, "at_sample_id", "Test interpolateAtSample at current sample id");
interpolateAtSampleGroup->addChild(group);
for (int targetNdx = 0; targetNdx < DE_LENGTH_OF_ARRAY(targets); ++targetNdx)
group->addChild(new InterpolateAtSampleIDCase(m_context, targets[targetNdx].name, targets[targetNdx].desc, targets[targetNdx].numSamples, targets[targetNdx].target));
}
// .negative
{
tcu::TestCaseGroup* const group = new tcu::TestCaseGroup(m_testCtx, "negative", "interpolateAtSample negative tests");
interpolateAtSampleGroup->addChild(group);
for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(negativeCompileCases); ++ndx)
group->addChild(new NegativeCompileInterpolationCase(m_context,
negativeCompileCases[ndx].name,
negativeCompileCases[ndx].description,
negativeCompileCases[ndx].caseType,
NegativeCompileInterpolationCase::INTERPOLATE_AT_SAMPLE));
}
}
// .interpolate_at_centroid
{
tcu::TestCaseGroup* const methodGroup = new tcu::TestCaseGroup(m_testCtx, "interpolate_at_centroid", "Test interpolateAtCentroid");
addChild(methodGroup);
// .consistency
{
tcu::TestCaseGroup* const group = new tcu::TestCaseGroup(m_testCtx, "consistency", "Test interpolateAtCentroid return value is consistent to centroid qualified value");
methodGroup->addChild(group);
for (int targetNdx = 0; targetNdx < DE_LENGTH_OF_ARRAY(targets); ++targetNdx)
group->addChild(new InterpolateAtCentroidCase(m_context, targets[targetNdx].name, targets[targetNdx].desc, targets[targetNdx].numSamples, targets[targetNdx].target, InterpolateAtCentroidCase::TEST_CONSISTENCY));
}
// .array_element
{
tcu::TestCaseGroup* const group = new tcu::TestCaseGroup(m_testCtx, "array_element", "Test interpolateAtCentroid with array element");
methodGroup->addChild(group);
for (int targetNdx = 0; targetNdx < DE_LENGTH_OF_ARRAY(targets); ++targetNdx)
group->addChild(new InterpolateAtCentroidCase(m_context, targets[targetNdx].name, targets[targetNdx].desc, targets[targetNdx].numSamples, targets[targetNdx].target, InterpolateAtCentroidCase::TEST_ARRAY_ELEMENT));
}
// .negative
{
tcu::TestCaseGroup* const group = new tcu::TestCaseGroup(m_testCtx, "negative", "interpolateAtCentroid negative tests");
methodGroup->addChild(group);
for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(negativeCompileCases); ++ndx)
group->addChild(new NegativeCompileInterpolationCase(m_context,
negativeCompileCases[ndx].name,
negativeCompileCases[ndx].description,
negativeCompileCases[ndx].caseType,
NegativeCompileInterpolationCase::INTERPOLATE_AT_CENTROID));
}
}
// .interpolate_at_offset
{
static const struct TestConfig
{
const char* name;
InterpolateAtOffsetCase::TestType type;
} configs[] =
{
{ "no_qualifiers", InterpolateAtOffsetCase::TEST_QUALIFIER_NONE },
{ "centroid_qualifier", InterpolateAtOffsetCase::TEST_QUALIFIER_CENTROID },
{ "sample_qualifier", InterpolateAtOffsetCase::TEST_QUALIFIER_SAMPLE },
};
tcu::TestCaseGroup* const methodGroup = new tcu::TestCaseGroup(m_testCtx, "interpolate_at_offset", "Test interpolateAtOffset");
addChild(methodGroup);
// .no_qualifiers
// .centroid_qualifier
// .sample_qualifier
for (int configNdx = 0; configNdx < DE_LENGTH_OF_ARRAY(configs); ++configNdx)
{
tcu::TestCaseGroup* const qualifierGroup = new tcu::TestCaseGroup(m_testCtx, configs[configNdx].name, "Test interpolateAtOffset with qualified/non-qualified varying");
methodGroup->addChild(qualifierGroup);
for (int targetNdx = 0; targetNdx < DE_LENGTH_OF_ARRAY(targets); ++targetNdx)
qualifierGroup->addChild(new InterpolateAtOffsetCase(m_context, targets[targetNdx].name, targets[targetNdx].desc, targets[targetNdx].numSamples, targets[targetNdx].target, configs[configNdx].type));
}
// .at_sample_position
{
tcu::TestCaseGroup* const group = new tcu::TestCaseGroup(m_testCtx, "at_sample_position", "Test interpolateAtOffset at sample position");
methodGroup->addChild(group);
for (int targetNdx = 0; targetNdx < DE_LENGTH_OF_ARRAY(targets); ++targetNdx)
group->addChild(new InterpolateAtSamplePositionCase(m_context, targets[targetNdx].name, targets[targetNdx].desc, targets[targetNdx].numSamples, targets[targetNdx].target));
}
// .array_element
{
tcu::TestCaseGroup* const group = new tcu::TestCaseGroup(m_testCtx, "array_element", "Test interpolateAtOffset with array element");
methodGroup->addChild(group);
for (int targetNdx = 0; targetNdx < DE_LENGTH_OF_ARRAY(targets); ++targetNdx)
group->addChild(new InterpolateAtOffsetCase(m_context, targets[targetNdx].name, targets[targetNdx].desc, targets[targetNdx].numSamples, targets[targetNdx].target, InterpolateAtOffsetCase::TEST_ARRAY_ELEMENT));
}
// .negative
{
tcu::TestCaseGroup* const group = new tcu::TestCaseGroup(m_testCtx, "negative", "interpolateAtOffset negative tests");
methodGroup->addChild(group);
for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(negativeCompileCases); ++ndx)
group->addChild(new NegativeCompileInterpolationCase(m_context,
negativeCompileCases[ndx].name,
negativeCompileCases[ndx].description,
negativeCompileCases[ndx].caseType,
NegativeCompileInterpolationCase::INTERPOLATE_AT_OFFSET));
}
}
}
} // Functional
} // gles31
} // deqp