| /*------------------------------------------------------------------------- |
| * 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<GLenum> &unitTypes); |
| |
| void setUniforms(sglr::Context &context, uint32_t program) const; |
| void makeSafeLods( |
| const vector<IVec2> &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<GLenum> m_unitTypes; // 2d or cube map. |
| vector<Mat3> m_transformations; |
| vector<Vec4> m_lodDerivateParts; // Parts of lod derivates; computed in init(), used in eval(). |
| }; |
| |
| MultiTexShader::MultiTexShader(uint32_t randSeed, int numUnits, const vector<GLenum> &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<IVec2> &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<float>(packet, context, 0, 0).xy(), |
| rr::readTriangleVarying<float>(packet, context, 0, 1).xy(), |
| rr::readTriangleVarying<float>(packet, context, 0, 2).xy(), |
| rr::readTriangleVarying<float>(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<GLenum> m_textureTypes; |
| vector<TextureParameters> m_textureParams; |
| vector<tcu::Texture2D *> m_textures2d; |
| vector<tcu::TextureCube *> m_texturesCube; |
| vector<int> m_unitTextures; //!< Which texture is used in a particular unit. |
| vector<int> |
| 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<tcu::Texture2D *>::iterator i = m_textures2d.begin(); i != m_textures2d.end(); i++) |
| delete *i; |
| m_textures2d.clear(); |
| |
| for (vector<tcu::TextureCube *>::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<GLenum> 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<IVec2> 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<uint32_t> textureGLNames; |
| vector<bool> 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 |
