| /*------------------------------------------------------------------------- |
| * drawElements Quality Program OpenGL ES 2.0 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 Invariance tests. |
| *//*--------------------------------------------------------------------*/ |
| |
| #include "es2fShaderInvarianceTests.hpp" |
| #include "deStringUtil.hpp" |
| #include "deRandom.hpp" |
| #include "gluContextInfo.hpp" |
| #include "gluRenderContext.hpp" |
| #include "gluShaderProgram.hpp" |
| #include "gluPixelTransfer.hpp" |
| #include "glwFunctions.hpp" |
| #include "glwEnums.hpp" |
| #include "tcuRenderTarget.hpp" |
| #include "tcuTestLog.hpp" |
| #include "tcuSurface.hpp" |
| #include "tcuTextureUtil.hpp" |
| #include "tcuStringTemplate.hpp" |
| |
| |
| namespace deqp |
| { |
| namespace gles2 |
| { |
| namespace Functional |
| { |
| namespace |
| { |
| |
| class FormatArgumentList; |
| |
| static tcu::Vec4 genRandomVector (de::Random& rnd) |
| { |
| tcu::Vec4 retVal; |
| |
| retVal.x() = rnd.getFloat(-1.0f, 1.0f); |
| retVal.y() = rnd.getFloat(-1.0f, 1.0f); |
| retVal.z() = rnd.getFloat(-1.0f, 1.0f); |
| retVal.w() = rnd.getFloat( 0.2f, 1.0f); |
| |
| return retVal; |
| } |
| |
| class FormatArgument |
| { |
| public: |
| FormatArgument (const char* name, const std::string& value); |
| |
| private: |
| friend class FormatArgumentList; |
| |
| const char* const m_name; |
| const std::string m_value; |
| }; |
| |
| FormatArgument::FormatArgument (const char* name, const std::string& value) |
| : m_name (name) |
| , m_value (value) |
| { |
| } |
| |
| class FormatArgumentList |
| { |
| public: |
| FormatArgumentList (void); |
| |
| FormatArgumentList& operator<< (const FormatArgument&); |
| const std::map<std::string, std::string>& getArguments (void) const; |
| |
| private: |
| std::map<std::string, std::string> m_formatArguments; |
| }; |
| |
| FormatArgumentList::FormatArgumentList (void) |
| { |
| } |
| |
| FormatArgumentList& FormatArgumentList::operator<< (const FormatArgument& arg) |
| { |
| m_formatArguments[arg.m_name] = arg.m_value; |
| return *this; |
| } |
| |
| const std::map<std::string, std::string>& FormatArgumentList::getArguments (void) const |
| { |
| return m_formatArguments; |
| } |
| |
| static std::string formatGLSL (const char* templateString, const FormatArgumentList& args) |
| { |
| const std::map<std::string, std::string>& params = args.getArguments(); |
| |
| return tcu::StringTemplate(std::string(templateString)).specialize(params); |
| } |
| |
| /*--------------------------------------------------------------------*//*! |
| * \brief Vertex shader invariance test |
| * |
| * Test vertex shader invariance by drawing a test pattern two times, each |
| * time with a different shader. Shaders have set identical values to |
| * invariant gl_Position using identical expressions. No fragments from the |
| * first pass using should remain visible. |
| *//*--------------------------------------------------------------------*/ |
| class InvarianceTest : public TestCase |
| { |
| public: |
| struct ShaderPair |
| { |
| std::string vertexShaderSource0; |
| std::string fragmentShaderSource0; |
| std::string vertexShaderSource1; |
| std::string fragmentShaderSource1; |
| }; |
| |
| InvarianceTest (Context& ctx, const char* name, const char* desc); |
| ~InvarianceTest (void); |
| |
| void init (void); |
| void deinit (void); |
| IterateResult iterate (void); |
| |
| private: |
| virtual ShaderPair genShaders (void) const = DE_NULL; |
| bool checkImage (const tcu::Surface&) const; |
| |
| glu::ShaderProgram* m_shader0; |
| glu::ShaderProgram* m_shader1; |
| glw::GLuint m_arrayBuf; |
| int m_verticesInPattern; |
| |
| const int m_renderSize; |
| }; |
| |
| InvarianceTest::InvarianceTest (Context& ctx, const char* name, const char* desc) |
| : TestCase (ctx, name, desc) |
| , m_shader0 (DE_NULL) |
| , m_shader1 (DE_NULL) |
| , m_arrayBuf (0) |
| , m_verticesInPattern (0) |
| , m_renderSize (256) |
| { |
| } |
| |
| InvarianceTest::~InvarianceTest (void) |
| { |
| deinit(); |
| } |
| |
| void InvarianceTest::init (void) |
| { |
| // Invariance tests require drawing to the screen and reading back results. |
| // Tests results are not reliable if the resolution is too small |
| { |
| if (m_context.getRenderTarget().getWidth() < m_renderSize || |
| m_context.getRenderTarget().getHeight() < m_renderSize) |
| throw tcu::NotSupportedError(std::string("Render target size must be at least ") + de::toString(m_renderSize) + "x" + de::toString(m_renderSize)); |
| } |
| |
| // Gen shaders |
| { |
| ShaderPair vertexShaders = genShaders(); |
| |
| m_shader0 = new glu::ShaderProgram(m_context.getRenderContext(), glu::ProgramSources() << glu::VertexSource(vertexShaders.vertexShaderSource0) << glu::FragmentSource(vertexShaders.fragmentShaderSource0)); |
| if (!m_shader0->isOk()) |
| { |
| m_testCtx.getLog() << *m_shader0; |
| throw tcu::TestError("Test shader compile failed."); |
| } |
| |
| m_shader1 = new glu::ShaderProgram(m_context.getRenderContext(), glu::ProgramSources() << glu::VertexSource(vertexShaders.vertexShaderSource1) << glu::FragmentSource(vertexShaders.fragmentShaderSource1)); |
| if (!m_shader1->isOk()) |
| { |
| m_testCtx.getLog() << *m_shader1; |
| throw tcu::TestError("Test shader compile failed."); |
| } |
| |
| // log |
| m_testCtx.getLog() |
| << tcu::TestLog::Message << "Shader 1:" << tcu::TestLog::EndMessage |
| << *m_shader0 |
| << tcu::TestLog::Message << "Shader 2:" << tcu::TestLog::EndMessage |
| << *m_shader1; |
| } |
| |
| // Gen test pattern |
| { |
| const int numTriangles = 72; |
| de::Random rnd (123); |
| std::vector<tcu::Vec4> triangles (numTriangles * 3 * 2); |
| const glw::Functions& gl = m_context.getRenderContext().getFunctions(); |
| |
| // Narrow triangle pattern |
| for (int triNdx = 0; triNdx < numTriangles; ++triNdx) |
| { |
| const tcu::Vec4 vertex1 = genRandomVector(rnd); |
| const tcu::Vec4 vertex2 = genRandomVector(rnd); |
| const tcu::Vec4 vertex3 = vertex2 + genRandomVector(rnd) * 0.01f; // generate narrow triangles |
| |
| triangles[triNdx*3 + 0] = vertex1; |
| triangles[triNdx*3 + 1] = vertex2; |
| triangles[triNdx*3 + 2] = vertex3; |
| } |
| |
| // Normal triangle pattern |
| for (int triNdx = 0; triNdx < numTriangles; ++triNdx) |
| { |
| triangles[(numTriangles + triNdx)*3 + 0] = genRandomVector(rnd); |
| triangles[(numTriangles + triNdx)*3 + 1] = genRandomVector(rnd); |
| triangles[(numTriangles + triNdx)*3 + 2] = genRandomVector(rnd); |
| } |
| |
| // upload |
| gl.genBuffers(1, &m_arrayBuf); |
| gl.bindBuffer(GL_ARRAY_BUFFER, m_arrayBuf); |
| gl.bufferData(GL_ARRAY_BUFFER, (int)(triangles.size() * sizeof(tcu::Vec4)), &triangles[0], GL_STATIC_DRAW); |
| GLU_EXPECT_NO_ERROR(gl.getError(), "buffer gen"); |
| |
| m_verticesInPattern = numTriangles * 3; |
| } |
| } |
| |
| void InvarianceTest::deinit (void) |
| { |
| delete m_shader0; |
| delete m_shader1; |
| |
| m_shader0 = DE_NULL; |
| m_shader1 = DE_NULL; |
| |
| if (m_arrayBuf) |
| { |
| m_context.getRenderContext().getFunctions().deleteBuffers(1, &m_arrayBuf); |
| m_arrayBuf = 0; |
| } |
| } |
| |
| InvarianceTest::IterateResult InvarianceTest::iterate (void) |
| { |
| const glw::Functions& gl = m_context.getRenderContext().getFunctions(); |
| const bool depthBufferExists = m_context.getRenderTarget().getDepthBits() != 0; |
| tcu::Surface resultSurface (m_renderSize, m_renderSize); |
| bool error = false; |
| |
| // Prepare draw |
| gl.clearColor (0.0f, 0.0f, 0.0f, 1.0f); |
| gl.clear (GL_COLOR_BUFFER_BIT); |
| gl.viewport (0, 0, m_renderSize, m_renderSize); |
| gl.bindBuffer (GL_ARRAY_BUFFER, m_arrayBuf); |
| GLU_EXPECT_NO_ERROR (gl.getError(), "setup draw"); |
| |
| m_testCtx.getLog() << tcu::TestLog::Message << "Testing position invariance." << tcu::TestLog::EndMessage; |
| |
| // Draw position check passes |
| for (int passNdx = 0; passNdx < 2; ++passNdx) |
| { |
| const glu::ShaderProgram& shader = (passNdx == 0) ? (*m_shader0) : (*m_shader1); |
| const glw::GLint positionLoc = gl.getAttribLocation(shader.getProgram(), "a_input"); |
| const glw::GLint colorLoc = gl.getUniformLocation(shader.getProgram(), "u_color"); |
| const tcu::Vec4 red = tcu::Vec4(1.0f, 0.0f, 0.0f, 1.0f); |
| const tcu::Vec4 green = tcu::Vec4(0.0f, 1.0f, 0.0f, 1.0f); |
| const tcu::Vec4 color = (passNdx == 0) ? (red) : (green); |
| const char* const colorStr = (passNdx == 0) ? ("red - purple") : ("green"); |
| |
| m_testCtx.getLog() << tcu::TestLog::Message << "Drawing position test pattern using shader " << (passNdx+1) << ". Primitive color: " << colorStr << "." << tcu::TestLog::EndMessage; |
| |
| gl.useProgram (shader.getProgram()); |
| gl.uniform4fv (colorLoc, 1, color.getPtr()); |
| gl.enableVertexAttribArray (positionLoc); |
| gl.vertexAttribPointer (positionLoc, 4, GL_FLOAT, GL_FALSE, sizeof(tcu::Vec4), DE_NULL); |
| gl.drawArrays (GL_TRIANGLES, 0, m_verticesInPattern); |
| gl.disableVertexAttribArray (positionLoc); |
| GLU_EXPECT_NO_ERROR (gl.getError(), "draw pass"); |
| } |
| |
| // Read result |
| glu::readPixels(m_context.getRenderContext(), 0, 0, resultSurface.getAccess()); |
| |
| // Check there are no red pixels |
| m_testCtx.getLog() << tcu::TestLog::Message << "Verifying output. Expecting only green or background colored pixels." << tcu::TestLog::EndMessage; |
| error |= !checkImage(resultSurface); |
| |
| if (!depthBufferExists) |
| { |
| m_testCtx.getLog() << tcu::TestLog::Message << "Depth buffer not available, skipping z-test." << tcu::TestLog::EndMessage; |
| } |
| else |
| { |
| // Test with Z-test |
| gl.clearDepthf (1.0f); |
| gl.clear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
| gl.enable (GL_DEPTH_TEST); |
| |
| m_testCtx.getLog() << tcu::TestLog::Message << "Testing position invariance with z-test. Enabling GL_DEPTH_TEST." << tcu::TestLog::EndMessage; |
| |
| // Draw position check passes |
| for (int passNdx = 0; passNdx < 2; ++passNdx) |
| { |
| const glu::ShaderProgram& shader = (passNdx == 0) ? (*m_shader0) : (*m_shader1); |
| const glw::GLint positionLoc = gl.getAttribLocation(shader.getProgram(), "a_input"); |
| const glw::GLint colorLoc = gl.getUniformLocation(shader.getProgram(), "u_color"); |
| const tcu::Vec4 red = tcu::Vec4(1.0f, 0.0f, 0.0f, 1.0f); |
| const tcu::Vec4 green = tcu::Vec4(0.0f, 1.0f, 0.0f, 1.0f); |
| const tcu::Vec4 color = (passNdx == 0) ? (red) : (green); |
| const glw::GLenum depthFunc = (passNdx == 0) ? (GL_ALWAYS) : (GL_EQUAL); |
| const char* const depthFuncStr = (passNdx == 0) ? ("GL_ALWAYS") : ("GL_EQUAL"); |
| const char* const colorStr = (passNdx == 0) ? ("red - purple") : ("green"); |
| |
| m_testCtx.getLog() << tcu::TestLog::Message << "Drawing Z-test pattern using shader " << (passNdx+1) << ". Primitive color: " << colorStr << ". DepthFunc: " << depthFuncStr << tcu::TestLog::EndMessage; |
| |
| gl.useProgram (shader.getProgram()); |
| gl.uniform4fv (colorLoc, 1, color.getPtr()); |
| gl.depthFunc (depthFunc); |
| gl.enableVertexAttribArray (positionLoc); |
| gl.vertexAttribPointer (positionLoc, 4, GL_FLOAT, GL_FALSE, sizeof(tcu::Vec4), DE_NULL); |
| gl.drawArrays (GL_TRIANGLES, m_verticesInPattern, m_verticesInPattern); // !< buffer contains 2 m_verticesInPattern-sized patterns |
| gl.disableVertexAttribArray (positionLoc); |
| GLU_EXPECT_NO_ERROR (gl.getError(), "draw pass"); |
| } |
| |
| // Read result |
| glu::readPixels(m_context.getRenderContext(), 0, 0, resultSurface.getAccess()); |
| |
| // Check there are no red pixels |
| m_testCtx.getLog() << tcu::TestLog::Message << "Verifying output. Expecting only green or background colored pixels." << tcu::TestLog::EndMessage; |
| error |= !checkImage(resultSurface); |
| } |
| |
| // Report result |
| if (error) |
| m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Detected variance between two invariant values"); |
| else |
| m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass"); |
| |
| return STOP; |
| } |
| |
| bool InvarianceTest::checkImage (const tcu::Surface& surface) const |
| { |
| const tcu::IVec4 okColor = tcu::IVec4(0, 255, 0, 255); |
| const tcu::RGBA errColor = tcu::RGBA(255, 0, 0, 255); |
| bool error = false; |
| tcu::Surface errorMask (m_renderSize, m_renderSize); |
| |
| tcu::clear(errorMask.getAccess(), okColor); |
| |
| for (int y = 0; y < m_renderSize; ++y) |
| for (int x = 0; x < m_renderSize; ++x) |
| { |
| const tcu::RGBA col = surface.getPixel(x, y); |
| |
| if (col.getRed() != 0) |
| { |
| errorMask.setPixel(x, y, errColor); |
| error = true; |
| } |
| } |
| |
| // report error |
| if (error) |
| { |
| m_testCtx.getLog() << tcu::TestLog::Message << "Invalid pixels found (fragments from first render pass found). Variance detected." << tcu::TestLog::EndMessage; |
| m_testCtx.getLog() |
| << tcu::TestLog::ImageSet("Results", "Result verification") |
| << tcu::TestLog::Image("Result", "Result", surface) |
| << tcu::TestLog::Image("Error mask", "Error mask", errorMask) |
| << tcu::TestLog::EndImageSet; |
| |
| return false; |
| } |
| else |
| { |
| m_testCtx.getLog() << tcu::TestLog::Message << "No variance found." << tcu::TestLog::EndMessage; |
| m_testCtx.getLog() |
| << tcu::TestLog::ImageSet("Results", "Result verification") |
| << tcu::TestLog::Image("Result", "Result", surface) |
| << tcu::TestLog::EndImageSet; |
| |
| return true; |
| } |
| } |
| |
| class BasicInvarianceTest : public InvarianceTest |
| { |
| public: |
| BasicInvarianceTest (Context& ctx, const char* name, const char* desc, const std::string& vertexShader1, const std::string& vertexShader2); |
| ShaderPair genShaders (void) const; |
| |
| private: |
| const std::string m_vertexShader1; |
| const std::string m_vertexShader2; |
| const std::string m_fragmentShader; |
| static const char* const s_basicFragmentShader; |
| }; |
| |
| const char* const BasicInvarianceTest::s_basicFragmentShader = "uniform mediump vec4 u_color;\n" |
| "varying mediump vec4 v_unrelated;\n" |
| "void main ()\n" |
| "{\n" |
| " mediump float blue = dot(v_unrelated, vec4(1.0, 1.0, 1.0, 1.0));\n" |
| " gl_FragColor = vec4(u_color.r, u_color.g, blue, u_color.a);\n" |
| "}\n"; |
| |
| BasicInvarianceTest::BasicInvarianceTest (Context& ctx, const char* name, const char* desc, const std::string& vertexShader1, const std::string& vertexShader2) |
| : InvarianceTest (ctx, name, desc) |
| , m_vertexShader1 (vertexShader1) |
| , m_vertexShader2 (vertexShader2) |
| , m_fragmentShader (s_basicFragmentShader) |
| { |
| } |
| |
| BasicInvarianceTest::ShaderPair BasicInvarianceTest::genShaders (void) const |
| { |
| ShaderPair retVal; |
| |
| retVal.vertexShaderSource0 = m_vertexShader1; |
| retVal.vertexShaderSource1 = m_vertexShader2; |
| retVal.fragmentShaderSource0 = m_fragmentShader; |
| retVal.fragmentShaderSource1 = m_fragmentShader; |
| |
| return retVal; |
| } |
| |
| } // anonymous |
| |
| ShaderInvarianceTests::ShaderInvarianceTests (Context& context) |
| : TestCaseGroup(context, "invariance", "Invariance tests") |
| { |
| } |
| |
| ShaderInvarianceTests::~ShaderInvarianceTests (void) |
| { |
| } |
| |
| void ShaderInvarianceTests::init (void) |
| { |
| static const struct PrecisionCase |
| { |
| glu::Precision prec; |
| const char* name; |
| |
| // set literals in the glsl to be in the representable range |
| const char* highValue; // !< highValue < maxValue |
| const char* invHighValue; |
| const char* mediumValue; // !< mediumValue^2 < maxValue |
| const char* lowValue; // !< lowValue^4 < maxValue |
| const char* invlowValue; |
| int loopIterations; |
| int loopPartialIterations; |
| int loopNormalizationExponent; |
| const char* loopNormalizationConstantLiteral; |
| const char* loopMultiplier; |
| const char* sumLoopNormalizationConstantLiteral; |
| } precisions[] = |
| { |
| { glu::PRECISION_HIGHP, "highp", "1.0e20", "1.0e-20", "1.0e14", "1.0e9", "1.0e-9", 14, 11, 2, "1.0e4", "1.9", "1.0e3" }, |
| { glu::PRECISION_MEDIUMP, "mediump", "1.0e4", "1.0e-4", "1.0e2", "1.0e1", "1.0e-1", 13, 11, 2, "1.0e4", "1.9", "1.0e3" }, |
| { glu::PRECISION_LOWP, "lowp", "0.9", "1.1", "1.1", "1.15", "0.87", 6, 2, 0, "2.0", "1.1", "1.0" }, |
| }; |
| |
| for (int precNdx = 0; precNdx < DE_LENGTH_OF_ARRAY(precisions); ++precNdx) |
| { |
| const char* const precisionName = precisions[precNdx].name; |
| const glu::Precision precision = precisions[precNdx].prec; |
| tcu::TestCaseGroup* const group = new tcu::TestCaseGroup(m_testCtx, precisionName, "Invariance tests using the given precision."); |
| |
| const FormatArgumentList args = FormatArgumentList() |
| << FormatArgument("VERSION", "") |
| << FormatArgument("IN", "attribute") |
| << FormatArgument("OUT", "varying") |
| << FormatArgument("IN_PREC", precisionName) |
| << FormatArgument("HIGH_VALUE", de::toString(precisions[precNdx].highValue)) |
| << FormatArgument("HIGH_VALUE_INV", de::toString(precisions[precNdx].invHighValue)) |
| << FormatArgument("MEDIUM_VALUE", de::toString(precisions[precNdx].mediumValue)) |
| << FormatArgument("LOW_VALUE", de::toString(precisions[precNdx].lowValue)) |
| << FormatArgument("LOW_VALUE_INV", de::toString(precisions[precNdx].invlowValue)) |
| << FormatArgument("LOOP_ITERS", de::toString(precisions[precNdx].loopIterations)) |
| << FormatArgument("LOOP_ITERS_PARTIAL", de::toString(precisions[precNdx].loopPartialIterations)) |
| << FormatArgument("LOOP_NORM_FRACT_EXP", de::toString(precisions[precNdx].loopNormalizationExponent)) |
| << FormatArgument("LOOP_NORM_LITERAL", precisions[precNdx].loopNormalizationConstantLiteral) |
| << FormatArgument("LOOP_MULTIPLIER", precisions[precNdx].loopMultiplier) |
| << FormatArgument("SUM_LOOP_NORM_LITERAL", precisions[precNdx].sumLoopNormalizationConstantLiteral); |
| |
| addChild(group); |
| |
| // subexpression cases |
| { |
| // First shader shares "${HIGH_VALUE}*a_input.x*a_input.xxxx + ${HIGH_VALUE}*a_input.y*a_input.yyyy" with unrelated output variable. Reordering might result in accuracy loss |
| // due to the high exponent. In the second shader, the high exponent may be removed during compilation. |
| |
| group->addChild(new BasicInvarianceTest(m_context, "common_subexpression_0", "Shader shares a subexpression with an unrelated variable.", |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " v_unrelated = a_input.xzxz + (${HIGH_VALUE}*a_input.x*a_input.xxxx + ${HIGH_VALUE}*a_input.y*a_input.yyyy) * (1.08 * a_input.zyzy * a_input.xzxz) * ${HIGH_VALUE_INV} * (a_input.z * a_input.zzxz - a_input.z * a_input.zzxz) + (${HIGH_VALUE}*a_input.x*a_input.xxxx + ${HIGH_VALUE}*a_input.y*a_input.yyyy) / ${HIGH_VALUE};\n" |
| " gl_Position = a_input + (${HIGH_VALUE}*a_input.x*a_input.xxxx + ${HIGH_VALUE}*a_input.y*a_input.yyyy) * ${HIGH_VALUE_INV};\n" |
| "}\n", args), |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " v_unrelated = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " gl_Position = a_input + (${HIGH_VALUE}*a_input.x*a_input.xxxx + ${HIGH_VALUE}*a_input.y*a_input.yyyy) * ${HIGH_VALUE_INV};\n" |
| "}\n", args))); |
| |
| // In the first shader, the unrelated variable "d" has mathematically the same expression as "e", but the different |
| // order of calculation might cause different results. |
| |
| group->addChild(new BasicInvarianceTest(m_context, "common_subexpression_1", "Shader shares a subexpression with an unrelated variable.", |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} vec4 a = ${HIGH_VALUE} * a_input.zzxx + a_input.xzxy - ${HIGH_VALUE} * a_input.zzxx;\n" |
| " ${IN_PREC} vec4 b = ${HIGH_VALUE} * a_input.zzxx;\n" |
| " ${IN_PREC} vec4 c = b - ${HIGH_VALUE} * a_input.zzxx + a_input.xzxy;\n" |
| " ${IN_PREC} vec4 d = (${LOW_VALUE} * a_input.yzxx) * (${LOW_VALUE} * a_input.yzzw) * (1.1*${LOW_VALUE_INV} * a_input.yzxx) * (${LOW_VALUE_INV} * a_input.xzzy);\n" |
| " ${IN_PREC} vec4 e = ((${LOW_VALUE} * a_input.yzxx) * (1.1*${LOW_VALUE_INV} * a_input.yzxx)) * ((${LOW_VALUE_INV} * a_input.xzzy) * (${LOW_VALUE} * a_input.yzzw));\n" |
| " v_unrelated = a + b + c + d + e;\n" |
| " gl_Position = a_input + fract(c) + e;\n" |
| "}\n", args), |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} vec4 b = ${HIGH_VALUE} * a_input.zzxx;\n" |
| " ${IN_PREC} vec4 c = b - ${HIGH_VALUE} * a_input.zzxx + a_input.xzxy;\n" |
| " ${IN_PREC} vec4 e = ((${LOW_VALUE} * a_input.yzxx) * (1.1*${LOW_VALUE_INV} * a_input.yzxx)) * ((${LOW_VALUE_INV} * a_input.xzzy) * (${LOW_VALUE} * a_input.yzzw));\n" |
| " v_unrelated = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " gl_Position = a_input + fract(c) + e;\n" |
| "}\n", args))); |
| |
| // Intermediate values used by an unrelated output variable |
| |
| group->addChild(new BasicInvarianceTest(m_context, "common_subexpression_2", "Shader shares a subexpression with an unrelated variable.", |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} vec4 a = ${MEDIUM_VALUE} * (a_input.xxxx + a_input.yyyy);\n" |
| " ${IN_PREC} vec4 b = (${MEDIUM_VALUE} * (a_input.xxxx + a_input.yyyy)) * (${MEDIUM_VALUE} * (a_input.xxxx + a_input.yyyy)) / ${MEDIUM_VALUE} / ${MEDIUM_VALUE};\n" |
| " ${IN_PREC} vec4 c = a * a;\n" |
| " ${IN_PREC} vec4 d = c / ${MEDIUM_VALUE} / ${MEDIUM_VALUE};\n" |
| " v_unrelated = a + b + c + d;\n" |
| " gl_Position = a_input + d;\n" |
| "}\n", args), |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} vec4 a = ${MEDIUM_VALUE} * (a_input.xxxx + a_input.yyyy);\n" |
| " ${IN_PREC} vec4 c = a * a;\n" |
| " ${IN_PREC} vec4 d = c / ${MEDIUM_VALUE} / ${MEDIUM_VALUE};\n" |
| " v_unrelated = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " gl_Position = a_input + d;\n" |
| "}\n", args))); |
| |
| // Invariant value can be calculated using unrelated value |
| |
| group->addChild(new BasicInvarianceTest(m_context, "common_subexpression_3", "Shader shares a subexpression with an unrelated variable.", |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} float x = a_input.x * 0.2;\n" |
| " ${IN_PREC} vec4 a = a_input.xxyx * 0.7;\n" |
| " ${IN_PREC} vec4 b = a_input.yxyz * 0.7;\n" |
| " ${IN_PREC} vec4 c = a_input.zxyx * 0.5;\n" |
| " ${IN_PREC} vec4 f = x*a + x*b + x*c;\n" |
| " v_unrelated = f;\n" |
| " ${IN_PREC} vec4 g = x * (a + b + c);\n" |
| " gl_Position = a_input + g;\n" |
| "}\n", args), |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} float x = a_input.x * 0.2;\n" |
| " ${IN_PREC} vec4 a = a_input.xxyx * 0.7;\n" |
| " ${IN_PREC} vec4 b = a_input.yxyz * 0.7;\n" |
| " ${IN_PREC} vec4 c = a_input.zxyx * 0.5;\n" |
| " v_unrelated = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " ${IN_PREC} vec4 g = x * (a + b + c);\n" |
| " gl_Position = a_input + g;\n" |
| "}\n", args))); |
| } |
| |
| // shared subexpression of different precision |
| { |
| for (int precisionOther = glu::PRECISION_LOWP; precisionOther != glu::PRECISION_LAST; ++precisionOther) |
| { |
| const char* const unrelatedPrec = glu::getPrecisionName((glu::Precision)precisionOther); |
| const glu::Precision minPrecision = (precisionOther < (int)precision) ? ((glu::Precision)precisionOther) : (precision); |
| const char* const multiplierStr = (minPrecision == glu::PRECISION_LOWP) ? ("0.8, 0.4, -0.2, 0.3") : ("1.0e1, 5.0e2, 2.0e2, 1.0"); |
| const char* const normalizationStrUsed = (minPrecision == glu::PRECISION_LOWP) ? ("vec4(fract(used2).xyz, 0.0)") : ("vec4(fract(used2 / 1.0e2).xyz - fract(used2 / 1.0e3).xyz, 0.0)"); |
| const char* const normalizationStrUnrelated = (minPrecision == glu::PRECISION_LOWP) ? ("vec4(fract(unrelated2).xyz, 0.0)") : ("vec4(fract(unrelated2 / 1.0e2).xyz - fract(unrelated2 / 1.0e3).xyz, 0.0)"); |
| |
| group->addChild(new BasicInvarianceTest(m_context, ("subexpression_precision_" + std::string(unrelatedPrec)).c_str(), "Shader shares subexpression of different precision with an unrelated variable.", |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} ${UNRELATED_PREC} vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${UNRELATED_PREC} vec4 unrelated0 = a_input + vec4(0.1, 0.2, 0.3, 0.4);\n" |
| " ${UNRELATED_PREC} vec4 unrelated1 = vec4(${MULTIPLIER}) * unrelated0.xywz + unrelated0;\n" |
| " ${UNRELATED_PREC} vec4 unrelated2 = refract(unrelated1, unrelated0, distance(unrelated0, unrelated1));\n" |
| " v_unrelated = a_input + 0.02 * ${NORMALIZE_UNRELATED};\n" |
| " ${IN_PREC} vec4 used0 = a_input + vec4(0.1, 0.2, 0.3, 0.4);\n" |
| " ${IN_PREC} vec4 used1 = vec4(${MULTIPLIER}) * used0.xywz + used0;\n" |
| " ${IN_PREC} vec4 used2 = refract(used1, used0, distance(used0, used1));\n" |
| " gl_Position = a_input + 0.02 * ${NORMALIZE_USED};\n" |
| "}\n", FormatArgumentList(args) |
| << FormatArgument("UNRELATED_PREC", unrelatedPrec) |
| << FormatArgument("MULTIPLIER", multiplierStr) |
| << FormatArgument("NORMALIZE_USED", normalizationStrUsed) |
| << FormatArgument("NORMALIZE_UNRELATED", normalizationStrUnrelated)), |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} ${UNRELATED_PREC} vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " v_unrelated = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " ${IN_PREC} vec4 used0 = a_input + vec4(0.1, 0.2, 0.3, 0.4);\n" |
| " ${IN_PREC} vec4 used1 = vec4(${MULTIPLIER}) * used0.xywz + used0;\n" |
| " ${IN_PREC} vec4 used2 = refract(used1, used0, distance(used0, used1));\n" |
| " gl_Position = a_input + 0.02 * ${NORMALIZE_USED};\n" |
| "}\n", FormatArgumentList(args) |
| << FormatArgument("UNRELATED_PREC", unrelatedPrec) |
| << FormatArgument("MULTIPLIER", multiplierStr) |
| << FormatArgument("NORMALIZE_USED", normalizationStrUsed) |
| << FormatArgument("NORMALIZE_UNRELATED", normalizationStrUnrelated)))); |
| } |
| } |
| |
| // loops |
| { |
| group->addChild(new BasicInvarianceTest(m_context, "loop_0", "Invariant value set using a loop", |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} highp vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} vec4 value = a_input;\n" |
| " v_unrelated = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " for (mediump int i = 0; i < ${LOOP_ITERS}; ++i)\n" |
| " {\n" |
| " value *= ${LOOP_MULTIPLIER};\n" |
| " v_unrelated += value;\n" |
| " }\n" |
| " gl_Position = vec4(value.xyz / ${LOOP_NORM_LITERAL} + a_input.xyz * 0.1, 1.0);\n" |
| "}\n", args), |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} highp vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} vec4 value = a_input;\n" |
| " v_unrelated = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " for (mediump int i = 0; i < ${LOOP_ITERS}; ++i)\n" |
| " {\n" |
| " value *= ${LOOP_MULTIPLIER};\n" |
| " }\n" |
| " gl_Position = vec4(value.xyz / ${LOOP_NORM_LITERAL} + a_input.xyz * 0.1, 1.0);\n" |
| "}\n", args))); |
| |
| group->addChild(new BasicInvarianceTest(m_context, "loop_1", "Invariant value set using a loop", |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} vec4 value = a_input;\n" |
| " for (mediump int i = 0; i < ${LOOP_ITERS}; ++i)\n" |
| " {\n" |
| " value *= ${LOOP_MULTIPLIER};\n" |
| " if (i == ${LOOP_ITERS_PARTIAL})\n" |
| " v_unrelated = value;\n" |
| " }\n" |
| " gl_Position = vec4(value.xyz / ${LOOP_NORM_LITERAL} + a_input.xyz * 0.1, 1.0);\n" |
| "}\n", args), |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} vec4 value = a_input;\n" |
| " v_unrelated = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " for (mediump int i = 0; i < ${LOOP_ITERS}; ++i)\n" |
| " {\n" |
| " value *= ${LOOP_MULTIPLIER};\n" |
| " }\n" |
| " gl_Position = vec4(value.xyz / ${LOOP_NORM_LITERAL} + a_input.xyz * 0.1, 1.0);\n" |
| "}\n", args))); |
| |
| group->addChild(new BasicInvarianceTest(m_context, "loop_2", "Invariant value set using a loop", |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} vec4 value = a_input;\n" |
| " v_unrelated = vec4(0.0, 0.0, -1.0, 1.0);\n" |
| " for (mediump int i = 0; i < ${LOOP_ITERS}; ++i)\n" |
| " {\n" |
| " value *= ${LOOP_MULTIPLIER};\n" |
| " if (i == ${LOOP_ITERS_PARTIAL})\n" |
| " gl_Position = a_input + 0.05 * vec4(fract(value.xyz / 1.0e${LOOP_NORM_FRACT_EXP}), 1.0);\n" |
| " else\n" |
| " v_unrelated = value + a_input;\n" |
| " }\n" |
| "}\n", args), |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} vec4 value = a_input;\n" |
| " v_unrelated = vec4(0.0, 0.0, -1.0, 1.0);\n" |
| " for (mediump int i = 0; i < ${LOOP_ITERS}; ++i)\n" |
| " {\n" |
| " value *= ${LOOP_MULTIPLIER};\n" |
| " if (i == ${LOOP_ITERS_PARTIAL})\n" |
| " gl_Position = a_input + 0.05 * vec4(fract(value.xyz / 1.0e${LOOP_NORM_FRACT_EXP}), 1.0);\n" |
| " else\n" |
| " v_unrelated = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " }\n" |
| "}\n", args))); |
| |
| group->addChild(new BasicInvarianceTest(m_context, "loop_3", "Invariant value set using a loop", |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} vec4 value = a_input;\n" |
| " gl_Position = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " v_unrelated = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " for (mediump int i = 0; i < ${LOOP_ITERS}; ++i)\n" |
| " {\n" |
| " value *= ${LOOP_MULTIPLIER};\n" |
| " gl_Position += vec4(value.xyz / ${SUM_LOOP_NORM_LITERAL} + a_input.xyz * 0.1, 1.0);\n" |
| " v_unrelated = gl_Position.xyzx * a_input;\n" |
| " }\n" |
| "}\n", args), |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} vec4 value = a_input;\n" |
| " gl_Position = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " v_unrelated = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " for (mediump int i = 0; i < ${LOOP_ITERS}; ++i)\n" |
| " {\n" |
| " value *= ${LOOP_MULTIPLIER};\n" |
| " gl_Position += vec4(value.xyz / ${SUM_LOOP_NORM_LITERAL} + a_input.xyz * 0.1, 1.0);\n" |
| " }\n" |
| "}\n", args))); |
| |
| group->addChild(new BasicInvarianceTest(m_context, "loop_4", "Invariant value set using a loop", |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} vec4 position = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " ${IN_PREC} vec4 value1 = a_input;\n" |
| " ${IN_PREC} vec4 value2 = a_input;\n" |
| " v_unrelated = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " for (mediump int i = 0; i < ${LOOP_ITERS}; ++i)\n" |
| " {\n" |
| " value1 *= ${LOOP_MULTIPLIER};\n" |
| " v_unrelated = v_unrelated*1.3 + a_input.xyzx * value1.xyxw;\n" |
| " }\n" |
| " for (mediump int i = 0; i < ${LOOP_ITERS}; ++i)\n" |
| " {\n" |
| " value2 *= ${LOOP_MULTIPLIER};\n" |
| " position = position*1.3 + a_input.xyzx * value2.xyxw;\n" |
| " }\n" |
| " gl_Position = a_input + 0.05 * vec4(fract(position.xyz / 1.0e${LOOP_NORM_FRACT_EXP}), 1.0);\n" |
| "}\n", args), |
| formatGLSL( "${VERSION}" |
| "${IN} ${IN_PREC} vec4 a_input;\n" |
| "${OUT} mediump vec4 v_unrelated;\n" |
| "invariant gl_Position;\n" |
| "void main ()\n" |
| "{\n" |
| " ${IN_PREC} vec4 position = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " ${IN_PREC} vec4 value2 = a_input;\n" |
| " v_unrelated = vec4(0.0, 0.0, 0.0, 0.0);\n" |
| " for (mediump int i = 0; i < ${LOOP_ITERS}; ++i)\n" |
| " {\n" |
| " value2 *= ${LOOP_MULTIPLIER};\n" |
| " position = position*1.3 + a_input.xyzx * value2.xyxw;\n" |
| " }\n" |
| " gl_Position = a_input + 0.05 * vec4(fract(position.xyz / 1.0e${LOOP_NORM_FRACT_EXP}), 1.0);\n" |
| "}\n", args))); |
| } |
| } |
| } |
| |
| } // Functional |
| } // gles2 |
| } // deqp |
