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331 lines
12 KiB
331 lines
12 KiB
/*------------------------------------------------------------------------- |
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* drawElements Quality Program OpenGL ES 2.0 Module |
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* ------------------------------------------------- |
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* |
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* Copyright 2014 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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*//*! |
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* \file |
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* \brief Varying interpolation accuracy tests. |
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*//*--------------------------------------------------------------------*/ |
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#include "es2aVaryingInterpolationTests.hpp" |
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#include "gluPixelTransfer.hpp" |
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#include "gluShaderProgram.hpp" |
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#include "gluShaderUtil.hpp" |
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#include "tcuStringTemplate.hpp" |
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#include "gluContextInfo.hpp" |
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#include "glsTextureTestUtil.hpp" |
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#include "tcuVector.hpp" |
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#include "tcuVectorUtil.hpp" |
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#include "tcuTestLog.hpp" |
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#include "tcuFloat.hpp" |
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#include "tcuImageCompare.hpp" |
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#include "tcuRenderTarget.hpp" |
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#include "tcuSurfaceAccess.hpp" |
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#include "deRandom.hpp" |
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#include "deStringUtil.hpp" |
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#include "deString.h" |
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#include "glw.h" |
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using tcu::TestLog; |
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using tcu::Vec3; |
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using tcu::Vec4; |
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using std::string; |
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using std::vector; |
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using std::map; |
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using tcu::SurfaceAccess; |
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namespace deqp |
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{ |
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namespace gles2 |
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{ |
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namespace Accuracy |
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{ |
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static inline float projectedTriInterpolate (const tcu::Vec3& s, const tcu::Vec3& w, float nx, float ny) |
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{ |
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return (s[0]*(1.0f-nx-ny)/w[0] + s[1]*ny/w[1] + s[2]*nx/w[2]) / ((1.0f-nx-ny)/w[0] + ny/w[1] + nx/w[2]); |
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} |
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static void renderReference (const SurfaceAccess& dst, const float coords[4*3], const Vec4& wCoord, const Vec3& scale, const Vec3& bias) |
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{ |
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float dstW = (float)dst.getWidth(); |
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float dstH = (float)dst.getHeight(); |
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Vec3 triR[2] = { Vec3(coords[0*3+0], coords[1*3+0], coords[2*3+0]), Vec3(coords[3*3+0], coords[2*3+0], coords[1*3+0]) }; |
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Vec3 triG[2] = { Vec3(coords[0*3+1], coords[1*3+1], coords[2*3+1]), Vec3(coords[3*3+1], coords[2*3+1], coords[1*3+1]) }; |
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Vec3 triB[2] = { Vec3(coords[0*3+2], coords[1*3+2], coords[2*3+2]), Vec3(coords[3*3+2], coords[2*3+2], coords[1*3+2]) }; |
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tcu::Vec3 triW[2] = { wCoord.swizzle(0, 1, 2), wCoord.swizzle(3, 2, 1) }; |
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for (int py = 0; py < dst.getHeight(); py++) |
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{ |
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for (int px = 0; px < dst.getWidth(); px++) |
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{ |
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float wx = (float)px + 0.5f; |
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float wy = (float)py + 0.5f; |
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float nx = wx / dstW; |
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float ny = wy / dstH; |
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int triNdx = nx + ny >= 1.0f ? 1 : 0; |
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float triNx = triNdx ? 1.0f - nx : nx; |
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float triNy = triNdx ? 1.0f - ny : ny; |
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float r = projectedTriInterpolate(triR[triNdx], triW[triNdx], triNx, triNy) * scale[0] + bias[0]; |
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float g = projectedTriInterpolate(triG[triNdx], triW[triNdx], triNx, triNy) * scale[1] + bias[1]; |
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float b = projectedTriInterpolate(triB[triNdx], triW[triNdx], triNx, triNy) * scale[2] + bias[2]; |
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Vec4 color = Vec4(r, g, b, 1.0f); |
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dst.setPixel(color, px, py); |
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} |
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} |
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} |
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class InterpolationCase : public TestCase |
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{ |
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public: |
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InterpolationCase (Context& context, const char* name, const char* desc, glu::Precision precision, const tcu::Vec3& minVal, const tcu::Vec3& maxVal, bool projective); |
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~InterpolationCase (void); |
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IterateResult iterate (void); |
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private: |
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glu::Precision m_precision; |
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tcu::Vec3 m_min; |
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tcu::Vec3 m_max; |
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bool m_projective; |
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}; |
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InterpolationCase::InterpolationCase (Context& context, const char* name, const char* desc, glu::Precision precision, const tcu::Vec3& minVal, const tcu::Vec3& maxVal, bool projective) |
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: TestCase (context, tcu::NODETYPE_ACCURACY, name, desc) |
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, m_precision (precision) |
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, m_min (minVal) |
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, m_max (maxVal) |
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, m_projective (projective) |
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{ |
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} |
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InterpolationCase::~InterpolationCase (void) |
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{ |
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} |
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static bool isValidFloat (glu::Precision precision, float val) |
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{ |
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if (precision == glu::PRECISION_MEDIUMP) |
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{ |
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tcu::Float16 fp16(val); |
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return !fp16.isDenorm() && !fp16.isInf() && !fp16.isNaN(); |
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} |
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else |
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{ |
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tcu::Float32 fp32(val); |
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return !fp32.isDenorm() && !fp32.isInf() && !fp32.isNaN(); |
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} |
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} |
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template <int Size> |
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static bool isValidFloatVec (glu::Precision precision, const tcu::Vector<float, Size>& vec) |
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{ |
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for (int ndx = 0; ndx < Size; ndx++) |
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{ |
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if (!isValidFloat(precision, vec[ndx])) |
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return false; |
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} |
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return true; |
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} |
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InterpolationCase::IterateResult InterpolationCase::iterate (void) |
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{ |
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TestLog& log = m_testCtx.getLog(); |
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de::Random rnd (deStringHash(getName())); |
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int viewportWidth = 128; |
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int viewportHeight = 128; |
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if (m_context.getRenderTarget().getWidth() < viewportWidth || |
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m_context.getRenderTarget().getHeight() < viewportHeight) |
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throw tcu::NotSupportedError("Too small viewport", "", __FILE__, __LINE__); |
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int viewportX = rnd.getInt(0, m_context.getRenderTarget().getWidth() - viewportWidth); |
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int viewportY = rnd.getInt(0, m_context.getRenderTarget().getHeight() - viewportHeight); |
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static const char* s_vertShaderTemplate = |
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"attribute highp vec4 a_position;\n" |
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"attribute ${PRECISION} vec3 a_coords;\n" |
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"varying ${PRECISION} vec3 v_coords;\n" |
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"\n" |
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"void main (void)\n" |
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"{\n" |
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" gl_Position = a_position;\n" |
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" v_coords = a_coords;\n" |
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"}\n"; |
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static const char* s_fragShaderTemplate = |
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"varying ${PRECISION} vec3 v_coords;\n" |
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"uniform ${PRECISION} vec3 u_scale;\n" |
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"uniform ${PRECISION} vec3 u_bias;\n" |
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"\n" |
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"void main (void)\n" |
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"{\n" |
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" gl_FragColor = vec4(v_coords * u_scale + u_bias, 1.0);\n" |
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"}\n"; |
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map<string, string> templateParams; |
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templateParams["PRECISION"] = glu::getPrecisionName(m_precision); |
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glu::ShaderProgram program(m_context.getRenderContext(), |
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glu::makeVtxFragSources(tcu::StringTemplate(s_vertShaderTemplate).specialize(templateParams), |
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tcu::StringTemplate(s_fragShaderTemplate).specialize(templateParams))); |
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log << program; |
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if (!program.isOk()) |
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{ |
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if (m_precision == glu::PRECISION_HIGHP && !m_context.getContextInfo().isFragmentHighPrecisionSupported()) |
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m_testCtx.setTestResult(QP_TEST_RESULT_NOT_SUPPORTED, "Fragment highp not supported"); |
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else |
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m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Compile failed"); |
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return STOP; |
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} |
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// Position coordinates. |
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Vec4 wCoord = m_projective ? Vec4(1.3f, 0.8f, 0.6f, 2.0f) : Vec4(1.0f, 1.0f, 1.0f, 1.0f); |
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float positions[] = |
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{ |
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-1.0f*wCoord.x(), -1.0f*wCoord.x(), 0.0f, wCoord.x(), |
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-1.0f*wCoord.y(), +1.0f*wCoord.y(), 0.0f, wCoord.y(), |
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+1.0f*wCoord.z(), -1.0f*wCoord.z(), 0.0f, wCoord.z(), |
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+1.0f*wCoord.w(), +1.0f*wCoord.w(), 0.0f, wCoord.w() |
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}; |
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// Coordinates for interpolation. |
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tcu::Vec3 scale = 1.0f / (m_max - m_min); |
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tcu::Vec3 bias = -1.0f*m_min*scale; |
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float coords[] = |
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{ |
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(0.0f - bias[0])/scale[0], (0.5f - bias[1])/scale[1], (1.0f - bias[2])/scale[2], |
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(0.5f - bias[0])/scale[0], (1.0f - bias[1])/scale[1], (0.5f - bias[2])/scale[2], |
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(0.5f - bias[0])/scale[0], (0.0f - bias[1])/scale[1], (0.5f - bias[2])/scale[2], |
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(1.0f - bias[0])/scale[0], (0.5f - bias[1])/scale[1], (0.0f - bias[2])/scale[2] |
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}; |
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log << TestLog::Message << "a_coords = " << ((tcu::Vec3(0.0f) - bias)/scale) << " -> " << ((tcu::Vec3(1.0f) - bias)/scale) << TestLog::EndMessage; |
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log << TestLog::Message << "u_scale = " << scale << TestLog::EndMessage; |
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log << TestLog::Message << "u_bias = " << bias << TestLog::EndMessage; |
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// Verify that none of the inputs are denormalized / inf / nan. |
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TCU_CHECK(isValidFloatVec(m_precision, scale)); |
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TCU_CHECK(isValidFloatVec(m_precision, bias)); |
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for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(coords); ndx++) |
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{ |
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TCU_CHECK(isValidFloat(m_precision, coords[ndx])); |
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TCU_CHECK(isValidFloat(m_precision, coords[ndx] * scale[ndx % 3] + bias[ndx % 3])); |
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} |
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// Indices. |
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static const deUint16 indices[] = { 0, 1, 2, 2, 1, 3 }; |
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{ |
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const int posLoc = glGetAttribLocation(program.getProgram(), "a_position"); |
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const int coordLoc = glGetAttribLocation(program.getProgram(), "a_coords"); |
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glEnableVertexAttribArray(posLoc); |
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glVertexAttribPointer(posLoc, 4, GL_FLOAT, GL_FALSE, 0, &positions[0]); |
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glEnableVertexAttribArray(coordLoc); |
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glVertexAttribPointer(coordLoc, 3, GL_FLOAT, GL_FALSE, 0, &coords[0]); |
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} |
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glUseProgram(program.getProgram()); |
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glUniform3f(glGetUniformLocation(program.getProgram(), "u_scale"), scale.x(), scale.y(), scale.z()); |
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glUniform3f(glGetUniformLocation(program.getProgram(), "u_bias"), bias.x(), bias.y(), bias.z()); |
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GLU_CHECK_MSG("After program setup"); |
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// Frames. |
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tcu::Surface rendered (viewportWidth, viewportHeight); |
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tcu::Surface reference (viewportWidth, viewportHeight); |
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// Render with GL. |
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glViewport(viewportX, viewportY, viewportWidth, viewportHeight); |
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glDrawElements(GL_TRIANGLES, DE_LENGTH_OF_ARRAY(indices), GL_UNSIGNED_SHORT, &indices[0]); |
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// Render reference \note While GPU is hopefully doing our draw call. |
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renderReference(SurfaceAccess(reference, m_context.getRenderTarget().getPixelFormat()), coords, wCoord, scale, bias); |
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glu::readPixels(m_context.getRenderContext(), viewportX, viewportY, rendered.getAccess()); |
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// Compute difference. |
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const int bestScoreDiff = 16; |
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const int worstScoreDiff = 300; |
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int score = tcu::measurePixelDiffAccuracy(log, "Result", "Image comparison result", reference, rendered, bestScoreDiff, worstScoreDiff, tcu::COMPARE_LOG_EVERYTHING); |
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m_testCtx.setTestResult(QP_TEST_RESULT_PASS, de::toString(score).c_str()); |
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return STOP; |
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} |
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VaryingInterpolationTests::VaryingInterpolationTests (Context& context) |
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: TestCaseGroup(context, "interpolation", "Varying Interpolation Accuracy Tests") |
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{ |
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} |
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VaryingInterpolationTests::~VaryingInterpolationTests (void) |
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{ |
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} |
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void VaryingInterpolationTests::init (void) |
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{ |
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DE_STATIC_ASSERT(glu::PRECISION_LOWP+1 == glu::PRECISION_MEDIUMP); |
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DE_STATIC_ASSERT(glu::PRECISION_MEDIUMP+1 == glu::PRECISION_HIGHP); |
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// Exp = Emax-3, Mantissa = 0 |
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float minF32 = tcu::Float32((0u<<31) | (0xfcu<<23) | 0x0u).asFloat(); |
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float maxF32 = tcu::Float32((1u<<31) | (0xfcu<<23) | 0x0u).asFloat(); |
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float minF16 = tcu::Float16((deUint16)((0u<<15) | (0x1cu<<10) | 0x0u)).asFloat(); |
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float maxF16 = tcu::Float16((deUint16)((1u<<15) | (0x1cu<<10) | 0x0u)).asFloat(); |
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static const struct |
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{ |
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const char* name; |
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Vec3 minVal; |
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Vec3 maxVal; |
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glu::Precision minPrecision; |
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} coordRanges[] = |
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{ |
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{ "zero_to_one", Vec3( 0.0f, 0.0f, 0.0f), Vec3( 1.0f, 1.0f, 1.0f), glu::PRECISION_LOWP }, |
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{ "zero_to_minus_one", Vec3( 0.0f, 0.0f, 0.0f), Vec3( -1.0f, -1.0f, -1.0f), glu::PRECISION_LOWP }, |
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{ "minus_one_to_one", Vec3( -1.0f, -1.0f, -1.0f), Vec3( 1.0f, 1.0f, 1.0f), glu::PRECISION_LOWP }, |
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{ "minus_ten_to_ten", Vec3(-10.0f, -10.0f, -10.0f), Vec3( 10.0f, 10.0f, 10.0f), glu::PRECISION_MEDIUMP }, |
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{ "thousands", Vec3( -5e3f, 1e3f, 1e3f), Vec3( 3e3f, -1e3f, 7e3f), glu::PRECISION_MEDIUMP }, |
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{ "full_mediump", Vec3(minF16, minF16, minF16), Vec3(maxF16, maxF16, maxF16), glu::PRECISION_MEDIUMP }, |
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{ "full_highp", Vec3(minF32, minF32, minF32), Vec3(maxF32, maxF32, maxF32), glu::PRECISION_HIGHP }, |
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}; |
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for (int precision = glu::PRECISION_LOWP; precision <= glu::PRECISION_HIGHP; precision++) |
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{ |
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for (int coordNdx = 0; coordNdx < DE_LENGTH_OF_ARRAY(coordRanges); coordNdx++) |
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{ |
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if (precision < (int)coordRanges[coordNdx].minPrecision) |
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continue; |
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string baseName = string(glu::getPrecisionName((glu::Precision)precision)) + "_" + coordRanges[coordNdx].name; |
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addChild(new InterpolationCase(m_context, baseName.c_str(), "", (glu::Precision)precision, coordRanges[coordNdx].minVal, coordRanges[coordNdx].maxVal, false)); |
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addChild(new InterpolationCase(m_context, (baseName + "_proj").c_str(), "", (glu::Precision)precision, coordRanges[coordNdx].minVal, coordRanges[coordNdx].maxVal, true)); |
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} |
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} |
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} |
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} // Accuracy |
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} // gles2 |
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} // deqp
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