/*------------------------------------------------------------------------- * 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 Texture unit usage tests. * * \todo [2012-07-12 nuutti] Come up with a good way to make these tests faster. *//*--------------------------------------------------------------------*/ #include "es2fTextureUnitTests.hpp" #include "glsTextureTestUtil.hpp" #include "gluTextureUtil.hpp" #include "gluContextInfo.hpp" #include "tcuTextureUtil.hpp" #include "tcuImageCompare.hpp" #include "tcuMatrix.hpp" #include "tcuRenderTarget.hpp" #include "sglrContextUtil.hpp" #include "sglrReferenceContext.hpp" #include "sglrGLContext.hpp" #include "deMath.h" #include "deStringUtil.hpp" #include "deRandom.hpp" #include "glwEnums.hpp" #include "glwFunctions.hpp" using std::string; using std::vector; using tcu::IVec2; using tcu::Mat3; using tcu::Vec2; using tcu::Vec3; using tcu::Vec4; using namespace glw; // GL types namespace deqp { using namespace gls::TextureTestUtil; namespace gles2 { namespace Functional { static const int VIEWPORT_WIDTH = 128; static const int VIEWPORT_HEIGHT = 128; static const int TEXTURE_WIDTH_2D = 128; static const int TEXTURE_HEIGHT_2D = 128; // \note Cube map texture size is larger in order to make minifications possible - otherwise would need to display different faces at same time. static const int TEXTURE_WIDTH_CUBE = 256; static const int TEXTURE_HEIGHT_CUBE = 256; static const int GRID_CELL_SIZE = 8; static const GLenum s_testFormats[] = {GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA}; static const GLenum s_testDataTypes[] = { GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_SHORT_5_5_5_1, }; static const GLenum s_testWrapModes[] = { GL_CLAMP_TO_EDGE, GL_REPEAT, GL_MIRRORED_REPEAT, }; static const GLenum s_testMinFilters[] = {GL_NEAREST, GL_LINEAR, GL_NEAREST_MIPMAP_NEAREST, GL_LINEAR_MIPMAP_NEAREST, GL_NEAREST_MIPMAP_LINEAR, GL_LINEAR_MIPMAP_LINEAR}; static const GLenum s_testNonMipmapMinFilters[] = {GL_NEAREST, GL_LINEAR}; static const GLenum s_testMagFilters[] = {GL_NEAREST, GL_LINEAR}; static const GLenum s_cubeFaceTargets[] = {GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_NEGATIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z}; static string generateMultiTexFragmentShader(int numUnits, const GLenum *unitTypes) { // The fragment shader calculates the average of a set of textures. string samplersStr; string matricesStr; string lookupsStr; string colorMultiplier = "(1.0/" + de::toString(numUnits) + ".0)"; for (int ndx = 0; ndx < numUnits; ndx++) { string ndxStr = de::toString(ndx); string samplerName = "u_sampler" + ndxStr; string transformationName = "u_trans" + ndxStr; const char *samplerType = unitTypes[ndx] == GL_TEXTURE_2D ? "sampler2D" : "samplerCube"; const char *lookupFunc = unitTypes[ndx] == GL_TEXTURE_2D ? "texture2D" : "textureCube"; samplersStr += string("") + "uniform mediump " + samplerType + " " + samplerName + ";\n"; matricesStr += "uniform mediump mat3 " + transformationName + ";\n"; string lookupCoord = transformationName + "*vec3(v_coord, 1.0)"; if (unitTypes[ndx] == GL_TEXTURE_2D) lookupCoord = "vec2(" + lookupCoord + ")"; lookupsStr += "\tcolor += " + colorMultiplier + "*" + lookupFunc + "(" + samplerName + ", " + lookupCoord + ");\n"; } return samplersStr + matricesStr + "varying mediump vec2 v_coord;\n" "\n" "void main (void)\n" "{\n" " mediump vec4 color = vec4(0.0);\n" + lookupsStr + " gl_FragColor = color;\n" "}\n"; } static sglr::pdec::ShaderProgramDeclaration generateShaderProgramDeclaration(int numUnits, const GLenum *unitTypes) { sglr::pdec::ShaderProgramDeclaration decl; decl << sglr::pdec::VertexAttribute("a_position", rr::GENERICVECTYPE_FLOAT); decl << sglr::pdec::VertexAttribute("a_coord", rr::GENERICVECTYPE_FLOAT); decl << sglr::pdec::VertexToFragmentVarying(rr::GENERICVECTYPE_FLOAT); decl << sglr::pdec::FragmentOutput(rr::GENERICVECTYPE_FLOAT); for (int ndx = 0; ndx < numUnits; ++ndx) { string samplerName = "u_sampler" + de::toString(ndx); string transformationName = "u_trans" + de::toString(ndx); decl << sglr::pdec::Uniform(samplerName, (unitTypes[ndx] == GL_TEXTURE_2D) ? (glu::TYPE_SAMPLER_2D) : (glu::TYPE_SAMPLER_CUBE)); decl << sglr::pdec::Uniform(transformationName, glu::TYPE_FLOAT_MAT3); } decl << sglr::pdec::VertexSource("attribute highp vec4 a_position;\n" "attribute mediump vec2 a_coord;\n" "varying mediump vec2 v_coord;\n" "\n" "void main (void)\n" "{\n" " gl_Position = a_position;\n" " v_coord = a_coord;\n" "}\n"); decl << sglr::pdec::FragmentSource(generateMultiTexFragmentShader(numUnits, unitTypes)); return decl; } // Calculates values to be used in calculateLod(). static Vec4 calculateLodDerivateParts(const Mat3 &transformation) { // Calculate transformed coordinates of three corners. Vec2 trans00 = (transformation * Vec3(0.0f, 0.0f, 1.0f)).xy(); Vec2 trans01 = (transformation * Vec3(0.0f, 1.0f, 1.0f)).xy(); Vec2 trans10 = (transformation * Vec3(1.0f, 0.0f, 1.0f)).xy(); return Vec4(trans10.x() - trans00.x(), trans01.x() - trans00.x(), trans10.y() - trans00.y(), trans01.y() - trans00.y()); } // Calculates the maximum allowed lod from derivates static float calculateLodMax(const Vec4 &derivateParts, const tcu::IVec2 &textureSize, const Vec2 &screenDerivate) { float dudx = derivateParts.x() * (float)textureSize.x() * screenDerivate.x(); float dudy = derivateParts.y() * (float)textureSize.x() * screenDerivate.y(); float dvdx = derivateParts.z() * (float)textureSize.y() * screenDerivate.x(); float dvdy = derivateParts.w() * (float)textureSize.y() * screenDerivate.y(); return deFloatLog2(de::max(de::abs(dudx), de::abs(dudy)) + de::max(de::abs(dvdx), de::abs(dvdy))); } // Calculates the minimum allowed lod from derivates static float calculateLodMin(const Vec4 &derivateParts, const tcu::IVec2 &textureSize, const Vec2 &screenDerivate) { float dudx = derivateParts.x() * (float)textureSize.x() * screenDerivate.x(); float dudy = derivateParts.y() * (float)textureSize.x() * screenDerivate.y(); float dvdx = derivateParts.z() * (float)textureSize.y() * screenDerivate.x(); float dvdy = derivateParts.w() * (float)textureSize.y() * screenDerivate.y(); return deFloatLog2(de::max(de::max(de::abs(dudx), de::abs(dudy)), de::max(de::abs(dvdx), de::abs(dvdy)))); } class MultiTexShader : public sglr::ShaderProgram { public: MultiTexShader(uint32_t randSeed, int numUnits, const vector &unitTypes); void setUniforms(sglr::Context &context, uint32_t program) const; void makeSafeLods( const vector &textureSizes, const IVec2 &viewportSize); // Modifies texture coordinates so that LODs aren't too close to x.5 or 0.0 . private: void shadeVertices(const rr::VertexAttrib *inputs, rr::VertexPacket *const *packets, const int numPackets) const; void shadeFragments(rr::FragmentPacket *packets, const int numPackets, const rr::FragmentShadingContext &context) const; int m_numUnits; vector m_unitTypes; // 2d or cube map. vector m_transformations; vector m_lodDerivateParts; // Parts of lod derivates; computed in init(), used in eval(). }; MultiTexShader::MultiTexShader(uint32_t randSeed, int numUnits, const vector &unitTypes) : sglr::ShaderProgram(generateShaderProgramDeclaration(numUnits, &unitTypes[0])) , m_numUnits(numUnits) , m_unitTypes(unitTypes) { // 2d-to-cube-face transformations. // \note 2d coordinates range from 0 to 1 and cube face coordinates from -1 to 1, so scaling is done as well. static const float s_cubeTransforms[][3 * 3] = {// Face -X: (x, y, 1) -> (-1, -(2*y-1), +(2*x-1)) {0.0f, 0.0f, -1.0f, 0.0f, -2.0f, 1.0f, 2.0f, 0.0f, -1.0f}, // Face +X: (x, y, 1) -> (+1, -(2*y-1), -(2*x-1)) {0.0f, 0.0f, 1.0f, 0.0f, -2.0f, 1.0f, -2.0f, 0.0f, 1.0f}, // Face -Y: (x, y, 1) -> (+(2*x-1), -1, -(2*y-1)) {2.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, -2.0f, 1.0f}, // Face +Y: (x, y, 1) -> (+(2*x-1), +1, +(2*y-1)) {2.0f, 0.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 2.0f, -1.0f}, // Face -Z: (x, y, 1) -> (-(2*x-1), -(2*y-1), -1) {-2.0f, 0.0f, 1.0f, 0.0f, -2.0f, 1.0f, 0.0f, 0.0f, -1.0f}, // Face +Z: (x, y, 1) -> (+(2*x-1), -(2*y-1), +1) {2.0f, 0.0f, -1.0f, 0.0f, -2.0f, 1.0f, 0.0f, 0.0f, 1.0f}}; // Generate transformation matrices. de::Random rnd(randSeed); m_transformations.reserve(m_numUnits); m_lodDerivateParts.reserve(m_numUnits); DE_ASSERT((int)m_unitTypes.size() == m_numUnits); for (int unitNdx = 0; unitNdx < m_numUnits; unitNdx++) { if (m_unitTypes[unitNdx] == GL_TEXTURE_2D) { float rotAngle = rnd.getFloat(0.0f, 2.0f * DE_PI); float xScaleFactor = rnd.getFloat(0.7f, 1.5f); float yScaleFactor = rnd.getFloat(0.7f, 1.5f); float xShearAmount = rnd.getFloat(0.0f, 0.5f); float yShearAmount = rnd.getFloat(0.0f, 0.5f); float xTranslationAmount = rnd.getFloat(-0.5f, 0.5f); float yTranslationAmount = rnd.getFloat(-0.5f, 0.5f); float tempOffsetData[3 * 3] = // For temporarily centering the coordinates to get nicer transformations. {1.0f, 0.0f, -0.5f, 0.0f, 1.0f, -0.5f, 0.0f, 0.0f, 1.0f}; float rotTransfData[3 * 3] = {deFloatCos(rotAngle), -deFloatSin(rotAngle), 0.0f, deFloatSin(rotAngle), deFloatCos(rotAngle), 0.0f, 0.0f, 0.0f, 1.0f}; float scaleTransfData[3 * 3] = {xScaleFactor, 0.0f, 0.0f, 0.0f, yScaleFactor, 0.0f, 0.0f, 0.0f, 1.0f}; float xShearTransfData[3 * 3] = {1.0f, xShearAmount, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f}; float yShearTransfData[3 * 3] = {1.0f, 0.0f, 0.0f, yShearAmount, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f}; float translationTransfData[3 * 3] = {1.0f, 0.0f, xTranslationAmount, 0.0f, 1.0f, yTranslationAmount, 0.0f, 0.0f, 1.0f}; Mat3 transformation = Mat3(tempOffsetData) * Mat3(translationTransfData) * Mat3(rotTransfData) * Mat3(scaleTransfData) * Mat3(xShearTransfData) * Mat3(yShearTransfData) * (Mat3(tempOffsetData) * (-1.0f)); // Calculate parts of lod derivates. m_lodDerivateParts.push_back(calculateLodDerivateParts(transformation)); m_transformations.push_back(transformation); } else { DE_ASSERT(m_unitTypes[unitNdx] == GL_TEXTURE_CUBE_MAP); DE_STATIC_ASSERT((int)tcu::CUBEFACE_LAST == DE_LENGTH_OF_ARRAY(s_cubeTransforms)); float planarTransData[3 * 3]; // In case of a cube map, we only want to render one face, so the transformation needs to be restricted - only enlarging scaling is done. for (int i = 0; i < DE_LENGTH_OF_ARRAY(planarTransData); i++) { if (i == 0 || i == 4) planarTransData[i] = rnd.getFloat(0.1f, 0.9f); // Two first diagonal cells control the scaling. else if (i == 8) planarTransData[i] = 1.0f; else planarTransData[i] = 0.0f; } int faceNdx = rnd.getInt(0, (int)tcu::CUBEFACE_LAST - 1); Mat3 planarTrans(planarTransData); // Planar, face-agnostic transformation. Mat3 finalTrans = Mat3(s_cubeTransforms[faceNdx]) * planarTrans; // Final transformation from planar to cube map coordinates, including the transformation just generated. // Calculate parts of lod derivates. m_lodDerivateParts.push_back(calculateLodDerivateParts(planarTrans)); m_transformations.push_back(finalTrans); } } } void MultiTexShader::setUniforms(sglr::Context &ctx, uint32_t program) const { ctx.useProgram(program); // Sampler and matrix uniforms. for (int ndx = 0; ndx < m_numUnits; ndx++) { string ndxStr = de::toString(ndx); ctx.uniform1i(ctx.getUniformLocation(program, ("u_sampler" + ndxStr).c_str()), ndx); ctx.uniformMatrix3fv(ctx.getUniformLocation(program, ("u_trans" + ndxStr).c_str()), 1, GL_FALSE, (GLfloat *)&m_transformations[ndx].getColumnMajorData()[0]); } } void MultiTexShader::makeSafeLods(const vector &textureSizes, const IVec2 &viewportSize) { DE_ASSERT((int)textureSizes.size() == m_numUnits); static const float shrinkScaleMatData[3 * 3] = {0.95f, 0.0f, 0.0f, 0.0f, 0.95f, 0.0f, 0.0f, 0.0f, 1.0f}; Mat3 shrinkScaleMat(shrinkScaleMatData); Vec2 screenDerivate(1.0f / (float)viewportSize.x(), 1.0f / (float)viewportSize.y()); for (int unitNdx = 0; unitNdx < m_numUnits; unitNdx++) { // As long as LOD is too close to 0.0 or is positive and too close to a something-and-a-half (0.5, 1.5, 2.5 etc) or allowed lod range could round to different levels, zoom in a little to get a safer LOD. for (;;) { const float threshold = 0.1f; const float epsilon = 0.01f; const float lodMax = calculateLodMax(m_lodDerivateParts[unitNdx], textureSizes[unitNdx], screenDerivate); const float lodMin = calculateLodMin(m_lodDerivateParts[unitNdx], textureSizes[unitNdx], screenDerivate); const int32_t maxLevel = (lodMax + epsilon < 0.5f) ? (0) : (deCeilFloatToInt32(lodMax + epsilon + 0.5f) - 1); const int32_t minLevel = (lodMin - epsilon < 0.5f) ? (0) : (deCeilFloatToInt32(lodMin - epsilon + 0.5f) - 1); if (de::abs(lodMax) < threshold || (lodMax > 0.0f && de::abs(deFloatFrac(lodMax) - 0.5f) < threshold) || de::abs(lodMin) < threshold || (lodMin > 0.0f && de::abs(deFloatFrac(lodMin) - 0.5f) < threshold) || maxLevel != minLevel) { m_transformations[unitNdx] = shrinkScaleMat * m_transformations[unitNdx]; m_lodDerivateParts[unitNdx] = calculateLodDerivateParts(m_transformations[unitNdx]); } else break; } } } void MultiTexShader::shadeVertices(const rr::VertexAttrib *inputs, rr::VertexPacket *const *packets, const int numPackets) const { for (int packetNdx = 0; packetNdx < numPackets; ++packetNdx) { rr::VertexPacket &packet = *(packets[packetNdx]); packet.position = rr::readVertexAttribFloat(inputs[0], packet.instanceNdx, packet.vertexNdx); packet.outputs[0] = rr::readVertexAttribFloat(inputs[1], packet.instanceNdx, packet.vertexNdx); } } void MultiTexShader::shadeFragments(rr::FragmentPacket *packets, const int numPackets, const rr::FragmentShadingContext &context) const { DE_ASSERT((int)m_unitTypes.size() == m_numUnits); DE_ASSERT((int)m_transformations.size() == m_numUnits); DE_ASSERT((int)m_lodDerivateParts.size() == m_numUnits); for (int packetNdx = 0; packetNdx < numPackets; ++packetNdx) { rr::FragmentPacket &packet = packets[packetNdx]; const float colorMultiplier = 1.0f / (float)m_numUnits; Vec4 outColors[4] = {Vec4(0.0f), Vec4(0.0f), Vec4(0.0f), Vec4(0.0f)}; for (int unitNdx = 0; unitNdx < m_numUnits; unitNdx++) { tcu::Vec4 texSamples[4]; // Read tex coords const tcu::Vec2 texCoords[4] = { rr::readTriangleVarying(packet, context, 0, 0).xy(), rr::readTriangleVarying(packet, context, 0, 1).xy(), rr::readTriangleVarying(packet, context, 0, 2).xy(), rr::readTriangleVarying(packet, context, 0, 3).xy(), }; if (m_unitTypes[unitNdx] == GL_TEXTURE_2D) { // Transform const tcu::Vec2 transformedTexCoords[4] = { (m_transformations[unitNdx] * Vec3(texCoords[0].x(), texCoords[0].y(), 1.0f)).xy(), (m_transformations[unitNdx] * Vec3(texCoords[1].x(), texCoords[1].y(), 1.0f)).xy(), (m_transformations[unitNdx] * Vec3(texCoords[2].x(), texCoords[2].y(), 1.0f)).xy(), (m_transformations[unitNdx] * Vec3(texCoords[3].x(), texCoords[3].y(), 1.0f)).xy(), }; // Sample m_uniforms[2 * unitNdx].sampler.tex2D->sample4(texSamples, transformedTexCoords); } else { DE_ASSERT(m_unitTypes[unitNdx] == GL_TEXTURE_CUBE_MAP); // Transform const tcu::Vec3 transformedTexCoords[4] = { m_transformations[unitNdx] * Vec3(texCoords[0].x(), texCoords[0].y(), 1.0f), m_transformations[unitNdx] * Vec3(texCoords[1].x(), texCoords[1].y(), 1.0f), m_transformations[unitNdx] * Vec3(texCoords[2].x(), texCoords[2].y(), 1.0f), m_transformations[unitNdx] * Vec3(texCoords[3].x(), texCoords[3].y(), 1.0f), }; // Sample m_uniforms[2 * unitNdx].sampler.texCube->sample4(texSamples, transformedTexCoords); } // Add to sum for (int fragNdx = 0; fragNdx < 4; ++fragNdx) outColors[fragNdx] += colorMultiplier * texSamples[fragNdx]; } // output for (int fragNdx = 0; fragNdx < 4; ++fragNdx) rr::writeFragmentOutput(context, packetNdx, fragNdx, 0, outColors[fragNdx]); } } class TextureUnitCase : public TestCase { public: enum CaseType { CASE_ONLY_2D = 0, CASE_ONLY_CUBE, CASE_MIXED, CASE_LAST }; TextureUnitCase(Context &context, const char *name, const char *desc, int numUnits /* \note If non-positive, use all units */, CaseType caseType, uint32_t randSeed); ~TextureUnitCase(void); void init(void); void deinit(void); IterateResult iterate(void); private: struct TextureParameters { GLenum format; GLenum dataType; GLenum wrapModeS; GLenum wrapModeT; GLenum minFilter; GLenum magFilter; }; TextureUnitCase(const TextureUnitCase &other); TextureUnitCase &operator=(const TextureUnitCase &other); void render(sglr::Context &context); const int m_numUnitsParam; const CaseType m_caseType; const uint32_t m_randSeed; int m_numTextures; //!< \note Needed in addition to m_numUnits since same texture may be bound to many texture units. int m_numUnits; //!< = m_numUnitsParam > 0 ? m_numUnitsParam : implementationDefinedMaximum vector m_textureTypes; vector m_textureParams; vector m_textures2d; vector m_texturesCube; vector m_unitTextures; //!< Which texture is used in a particular unit. vector m_ndx2dOrCube; //!< Index of a texture in either m_textures2d or m_texturesCube, depending on texture type. MultiTexShader *m_shader; }; TextureUnitCase::TextureUnitCase(Context &context, const char *name, const char *desc, int numUnits, CaseType caseType, uint32_t randSeed) : TestCase(context, tcu::NODETYPE_SELF_VALIDATE, name, desc) , m_numUnitsParam(numUnits) , m_caseType(caseType) , m_randSeed(randSeed) , m_numTextures(0) , m_numUnits(0) , m_shader(DE_NULL) { } TextureUnitCase::~TextureUnitCase(void) { TextureUnitCase::deinit(); } void TextureUnitCase::deinit(void) { for (vector::iterator i = m_textures2d.begin(); i != m_textures2d.end(); i++) delete *i; m_textures2d.clear(); for (vector::iterator i = m_texturesCube.begin(); i != m_texturesCube.end(); i++) delete *i; m_texturesCube.clear(); delete m_shader; m_shader = DE_NULL; } void TextureUnitCase::init(void) { m_numUnits = m_numUnitsParam > 0 ? m_numUnitsParam : m_context.getContextInfo().getInt(GL_MAX_TEXTURE_IMAGE_UNITS); // Make the textures. try { tcu::TestLog &log = m_testCtx.getLog(); de::Random rnd(m_randSeed); if (rnd.getFloat() < 0.7f) m_numTextures = m_numUnits; // In most cases use one unit per texture. else m_numTextures = rnd.getInt(deMax32(1, m_numUnits - 2), m_numUnits); // Sometimes assign same texture to multiple units. log << tcu::TestLog::Message << ("Using " + de::toString(m_numUnits) + " texture unit(s) and " + de::toString(m_numTextures) + " texture(s)") .c_str() << tcu::TestLog::EndMessage; m_textureTypes.reserve(m_numTextures); m_textureParams.reserve(m_numTextures); m_ndx2dOrCube.reserve(m_numTextures); // Generate textures. for (int texNdx = 0; texNdx < m_numTextures; texNdx++) { // Either fixed or randomized target types (2d or cube), and randomized parameters for every texture. TextureParameters params; bool is2d = m_caseType == CASE_ONLY_2D ? true : m_caseType == CASE_ONLY_CUBE ? false : rnd.getBool(); GLenum type = is2d ? GL_TEXTURE_2D : GL_TEXTURE_CUBE_MAP; const int texWidth = is2d ? TEXTURE_WIDTH_2D : TEXTURE_WIDTH_CUBE; const int texHeight = is2d ? TEXTURE_HEIGHT_2D : TEXTURE_HEIGHT_CUBE; bool mipmaps = (deIsPowerOfTwo32(texWidth) && deIsPowerOfTwo32(texHeight)); int numLevels = mipmaps ? deLog2Floor32(de::max(texWidth, texHeight)) + 1 : 1; params.wrapModeS = s_testWrapModes[rnd.getInt(0, DE_LENGTH_OF_ARRAY(s_testWrapModes) - 1)]; params.wrapModeT = s_testWrapModes[rnd.getInt(0, DE_LENGTH_OF_ARRAY(s_testWrapModes) - 1)]; params.magFilter = s_testMagFilters[rnd.getInt(0, DE_LENGTH_OF_ARRAY(s_testMagFilters) - 1)]; params.dataType = s_testDataTypes[rnd.getInt(0, DE_LENGTH_OF_ARRAY(s_testDataTypes) - 1)]; // Certain minification filters are only used when using mipmaps. if (mipmaps) params.minFilter = s_testMinFilters[rnd.getInt(0, DE_LENGTH_OF_ARRAY(s_testMinFilters) - 1)]; else params.minFilter = s_testNonMipmapMinFilters[rnd.getInt(0, DE_LENGTH_OF_ARRAY(s_testNonMipmapMinFilters) - 1)]; // Format may depend on data type. if (params.dataType == GL_UNSIGNED_SHORT_5_6_5) params.format = GL_RGB; else if (params.dataType == GL_UNSIGNED_SHORT_4_4_4_4 || params.dataType == GL_UNSIGNED_SHORT_5_5_5_1) params.format = GL_RGBA; else params.format = s_testFormats[rnd.getInt(0, DE_LENGTH_OF_ARRAY(s_testFormats) - 1)]; m_textureTypes.push_back(type); m_textureParams.push_back(params); // Create new texture. if (is2d) { m_ndx2dOrCube.push_back( (int)m_textures2d.size()); // Remember the index this texture has in the 2d array. m_textures2d.push_back(new tcu::Texture2D(glu::mapGLTransferFormat(params.format, params.dataType), texWidth, texHeight, isES2Context(m_context.getRenderContext().getType()))); } else { m_ndx2dOrCube.push_back( (int)m_texturesCube.size()); // Remember the index this texture has in the cube array. DE_ASSERT(texWidth == texHeight); m_texturesCube.push_back( new tcu::TextureCube(glu::mapGLTransferFormat(params.format, params.dataType), texWidth)); } tcu::TextureFormatInfo fmtInfo = tcu::getTextureFormatInfo(is2d ? m_textures2d.back()->getFormat() : m_texturesCube.back()->getFormat()); Vec4 cBias = fmtInfo.valueMin; Vec4 cScale = fmtInfo.valueMax - fmtInfo.valueMin; // Fill with grid texture. int numFaces = is2d ? 1 : (int)tcu::CUBEFACE_LAST; for (int face = 0; face < numFaces; face++) { uint32_t rgb = rnd.getUint32() & 0x00ffffff; uint32_t alpha0 = 0xff000000; uint32_t alpha1 = 0xff000000; if (params.format == GL_ALPHA) // \note This needs alpha to be visible. { alpha0 &= rnd.getUint32(); alpha1 = ~alpha0; } uint32_t colorA = alpha0 | rgb; uint32_t colorB = alpha1 | ~rgb; for (int levelNdx = 0; levelNdx < numLevels; levelNdx++) { if (is2d) m_textures2d.back()->allocLevel(levelNdx); else m_texturesCube.back()->allocLevel((tcu::CubeFace)face, levelNdx); int curCellSize = deMax32(1, GRID_CELL_SIZE >> levelNdx); // \note Scale grid cell size for mipmaps. tcu::PixelBufferAccess access = is2d ? m_textures2d.back()->getLevel(levelNdx) : m_texturesCube.back()->getLevelFace(levelNdx, (tcu::CubeFace)face); tcu::fillWithGrid(access, curCellSize, tcu::RGBA(colorA).toVec() * cScale + cBias, tcu::RGBA(colorB).toVec() * cScale + cBias); } } } // Assign a texture index to each unit. m_unitTextures.reserve(m_numUnits); // \note Every texture is used at least once. for (int i = 0; i < m_numTextures; i++) m_unitTextures.push_back(i); // Assign a random texture to remaining units. while ((int)m_unitTextures.size() < m_numUnits) m_unitTextures.push_back(rnd.getInt(0, m_numTextures - 1)); rnd.shuffle(m_unitTextures.begin(), m_unitTextures.end()); // Create shader. vector unitTypes; unitTypes.reserve(m_numUnits); for (int i = 0; i < m_numUnits; i++) unitTypes.push_back(m_textureTypes[m_unitTextures[i]]); DE_ASSERT(m_shader == DE_NULL); m_shader = new MultiTexShader(rnd.getUint32(), m_numUnits, unitTypes); } catch (const std::exception &) { // Clean up to save memory. TextureUnitCase::deinit(); throw; } } TextureUnitCase::IterateResult TextureUnitCase::iterate(void) { glu::RenderContext &renderCtx = m_context.getRenderContext(); const tcu::RenderTarget &renderTarget = renderCtx.getRenderTarget(); tcu::TestLog &log = m_testCtx.getLog(); de::Random rnd(m_randSeed); int viewportWidth = deMin32(VIEWPORT_WIDTH, renderTarget.getWidth()); int viewportHeight = deMin32(VIEWPORT_HEIGHT, renderTarget.getHeight()); int viewportX = rnd.getInt(0, renderTarget.getWidth() - viewportWidth); int viewportY = rnd.getInt(0, renderTarget.getHeight() - viewportHeight); tcu::Surface gles2Frame(viewportWidth, viewportHeight); tcu::Surface refFrame(viewportWidth, viewportHeight); { // First we do some tricks to make the LODs safer wrt. precision issues. See MultiTexShader::makeSafeLods(). vector texSizes; texSizes.reserve(m_numUnits); for (int i = 0; i < m_numUnits; i++) { int texNdx = m_unitTextures[i]; int texNdxInType = m_ndx2dOrCube[texNdx]; GLenum type = m_textureTypes[texNdx]; switch (type) { case GL_TEXTURE_2D: texSizes.push_back( IVec2(m_textures2d[texNdxInType]->getWidth(), m_textures2d[texNdxInType]->getHeight())); break; case GL_TEXTURE_CUBE_MAP: texSizes.push_back( IVec2(m_texturesCube[texNdxInType]->getSize(), m_texturesCube[texNdxInType]->getSize())); break; default: DE_ASSERT(false); } } m_shader->makeSafeLods(texSizes, IVec2(viewportWidth, viewportHeight)); } // Render using GLES2. { sglr::GLContext context(renderCtx, log, sglr::GLCONTEXT_LOG_CALLS | sglr::GLCONTEXT_LOG_PROGRAMS, tcu::IVec4(viewportX, viewportY, viewportWidth, viewportHeight)); render(context); context.readPixels(gles2Frame, 0, 0, viewportWidth, viewportHeight); } // Render reference image. { sglr::ReferenceContextBuffers buffers( tcu::PixelFormat(8, 8, 8, renderTarget.getPixelFormat().alphaBits ? 8 : 0), 0 /* depth */, 0 /* stencil */, viewportWidth, viewportHeight); sglr::ReferenceContext context(sglr::ReferenceContextLimits(renderCtx), buffers.getColorbuffer(), buffers.getDepthbuffer(), buffers.getStencilbuffer()); render(context); context.readPixels(refFrame, 0, 0, viewportWidth, viewportHeight); } // Compare images. const float threshold = 0.001f; bool isOk = tcu::fuzzyCompare(log, "ComparisonResult", "Image comparison result", refFrame, gles2Frame, threshold, tcu::COMPARE_LOG_RESULT); // Store test result. m_testCtx.setTestResult(isOk ? QP_TEST_RESULT_PASS : QP_TEST_RESULT_FAIL, isOk ? "Pass" : "Image comparison failed"); return STOP; } void TextureUnitCase::render(sglr::Context &context) { // Setup textures. vector textureGLNames; vector isTextureSetUp( m_numTextures, false); // \note Same texture may be bound to multiple units, but we only want to set up parameters and data once per texture. textureGLNames.resize(m_numTextures); context.genTextures(m_numTextures, &textureGLNames[0]); for (int unitNdx = 0; unitNdx < m_numUnits; unitNdx++) { int texNdx = m_unitTextures[unitNdx]; // Bind texture to unit. context.activeTexture(GL_TEXTURE0 + unitNdx); context.bindTexture(m_textureTypes[texNdx], textureGLNames[texNdx]); if (!isTextureSetUp[texNdx]) { // Binding this texture for first time, so set parameters and data. context.texParameteri(m_textureTypes[texNdx], GL_TEXTURE_WRAP_S, m_textureParams[texNdx].wrapModeS); context.texParameteri(m_textureTypes[texNdx], GL_TEXTURE_WRAP_T, m_textureParams[texNdx].wrapModeT); context.texParameteri(m_textureTypes[texNdx], GL_TEXTURE_MIN_FILTER, m_textureParams[texNdx].minFilter); context.texParameteri(m_textureTypes[texNdx], GL_TEXTURE_MAG_FILTER, m_textureParams[texNdx].magFilter); if (m_textureTypes[texNdx] == GL_TEXTURE_2D) { int ndx2d = m_ndx2dOrCube[texNdx]; const tcu::Texture2D *texture = m_textures2d[ndx2d]; bool mipmaps = (deIsPowerOfTwo32(texture->getWidth()) && deIsPowerOfTwo32(texture->getHeight())); int numLevels = mipmaps ? deLog2Floor32(de::max(texture->getWidth(), texture->getHeight())) + 1 : 1; context.pixelStorei(GL_UNPACK_ALIGNMENT, 1); for (int levelNdx = 0; levelNdx < numLevels; levelNdx++) { tcu::ConstPixelBufferAccess access = texture->getLevel(levelNdx); int width = access.getWidth(); int height = access.getHeight(); DE_ASSERT(access.getRowPitch() == access.getFormat().getPixelSize() * width); context.texImage2D(GL_TEXTURE_2D, levelNdx, m_textureParams[texNdx].format, width, height, 0, m_textureParams[texNdx].format, m_textureParams[texNdx].dataType, access.getDataPtr()); } } else { DE_ASSERT(m_textureTypes[texNdx] == GL_TEXTURE_CUBE_MAP); int ndxCube = m_ndx2dOrCube[texNdx]; const tcu::TextureCube *texture = m_texturesCube[ndxCube]; bool mipmaps = deIsPowerOfTwo32(texture->getSize()) != false; int numLevels = mipmaps ? deLog2Floor32(texture->getSize()) + 1 : 1; context.pixelStorei(GL_UNPACK_ALIGNMENT, 1); for (int face = 0; face < (int)tcu::CUBEFACE_LAST; face++) { for (int levelNdx = 0; levelNdx < numLevels; levelNdx++) { tcu::ConstPixelBufferAccess access = texture->getLevelFace(levelNdx, (tcu::CubeFace)face); int width = access.getWidth(); int height = access.getHeight(); DE_ASSERT(access.getRowPitch() == access.getFormat().getPixelSize() * width); context.texImage2D(s_cubeFaceTargets[face], levelNdx, m_textureParams[texNdx].format, width, height, 0, m_textureParams[texNdx].format, m_textureParams[texNdx].dataType, access.getDataPtr()); } } } isTextureSetUp[texNdx] = true; // Don't set up this texture's parameters and data again later. } } GLU_EXPECT_NO_ERROR(context.getError(), "Set textures"); // Setup shader uint32_t shaderID = context.createProgram(m_shader); // Draw. context.clearColor(0.125f, 0.25f, 0.5f, 1.0f); context.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); m_shader->setUniforms(context, shaderID); sglr::drawQuad(context, shaderID, Vec3(-1.0f, -1.0f, 0.0f), Vec3(1.0f, 1.0f, 0.0f)); GLU_EXPECT_NO_ERROR(context.getError(), "Draw"); // Delete previously generated texture names. context.deleteTextures(m_numTextures, &textureGLNames[0]); GLU_EXPECT_NO_ERROR(context.getError(), "Delete textures"); } TextureUnitTests::TextureUnitTests(Context &context) : TestCaseGroup(context, "units", "Texture Unit Usage Tests") { } TextureUnitTests::~TextureUnitTests(void) { } void TextureUnitTests::init(void) { const int numTestsPerGroup = 10; static const int unitCounts[] = { 2, 4, 8, -1 // \note Negative stands for the implementation-specified maximum. }; for (int unitCountNdx = 0; unitCountNdx < DE_LENGTH_OF_ARRAY(unitCounts); unitCountNdx++) { int numUnits = unitCounts[unitCountNdx]; string countGroupName = (unitCounts[unitCountNdx] < 0 ? "all" : de::toString(numUnits)) + "_units"; tcu::TestCaseGroup *countGroup = new tcu::TestCaseGroup(m_testCtx, countGroupName.c_str(), ""); addChild(countGroup); DE_STATIC_ASSERT((int)TextureUnitCase::CASE_ONLY_2D == 0); for (int caseType = (int)TextureUnitCase::CASE_ONLY_2D; caseType < (int)TextureUnitCase::CASE_LAST; caseType++) { const char *caseTypeGroupName = (TextureUnitCase::CaseType)caseType == TextureUnitCase::CASE_ONLY_2D ? "only_2d" : (TextureUnitCase::CaseType)caseType == TextureUnitCase::CASE_ONLY_CUBE ? "only_cube" : (TextureUnitCase::CaseType)caseType == TextureUnitCase::CASE_MIXED ? "mixed" : DE_NULL; DE_ASSERT(caseTypeGroupName != DE_NULL); tcu::TestCaseGroup *caseTypeGroup = new tcu::TestCaseGroup(m_testCtx, caseTypeGroupName, ""); countGroup->addChild(caseTypeGroup); for (int testNdx = 0; testNdx < numTestsPerGroup; testNdx++) caseTypeGroup->addChild(new TextureUnitCase(m_context, de::toString(testNdx).c_str(), "", numUnits, (TextureUnitCase::CaseType)caseType, (uint32_t)deInt32Hash(testNdx))); } } } } // namespace Functional } // namespace gles2 } // namespace deqp