diff options
Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/renderer/d3d/ShaderD3D.cpp')
| -rw-r--r-- | src/3rdparty/angle/src/libGLESv2/renderer/d3d/ShaderD3D.cpp | 457 |
1 files changed, 457 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/renderer/d3d/ShaderD3D.cpp b/src/3rdparty/angle/src/libGLESv2/renderer/d3d/ShaderD3D.cpp new file mode 100644 index 0000000000..c472113eba --- /dev/null +++ b/src/3rdparty/angle/src/libGLESv2/renderer/d3d/ShaderD3D.cpp @@ -0,0 +1,457 @@ +// +// Copyright (c) 2014 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// + +// ShaderD3D.cpp: Defines the rx::ShaderD3D class which implements rx::ShaderImpl. + +#include "libGLESv2/renderer/d3d/ShaderD3D.h" +#include "libGLESv2/renderer/Renderer.h" +#include "libGLESv2/Shader.h" +#include "libGLESv2/main.h" + +#include "common/utilities.h" + +namespace rx +{ + +template <typename VarT> +void FilterInactiveVariables(std::vector<VarT> *variableList) +{ + ASSERT(variableList); + + for (size_t varIndex = 0; varIndex < variableList->size();) + { + if (!(*variableList)[varIndex].staticUse) + { + variableList->erase(variableList->begin() + varIndex); + } + else + { + varIndex++; + } + } +} + +void *ShaderD3D::mFragmentCompiler = NULL; +void *ShaderD3D::mVertexCompiler = NULL; + +template <typename VarT> +const std::vector<VarT> *GetShaderVariables(const std::vector<VarT> *variableList) +{ + ASSERT(variableList); + return variableList; +} + +ShaderD3D::ShaderD3D(GLenum type, rx::Renderer *renderer) + : mType(type), + mRenderer(renderer), + mShaderVersion(100) +{ + uncompile(); + initializeCompiler(); +} + +ShaderD3D::~ShaderD3D() +{ +} + +ShaderD3D *ShaderD3D::makeShaderD3D(ShaderImpl *impl) +{ + ASSERT(HAS_DYNAMIC_TYPE(ShaderD3D*, impl)); + return static_cast<ShaderD3D*>(impl); +} + +const ShaderD3D *ShaderD3D::makeShaderD3D(const ShaderImpl *impl) +{ + ASSERT(HAS_DYNAMIC_TYPE(const ShaderD3D*, impl)); + return static_cast<const ShaderD3D*>(impl); +} + +// Perform a one-time initialization of the shader compiler (or after being destructed by releaseCompiler) +void ShaderD3D::initializeCompiler() +{ + if (!mFragmentCompiler) + { + int result = ShInitialize(); + + if (result) + { + ShShaderOutput hlslVersion = (mRenderer->getMajorShaderModel() >= 4) ? SH_HLSL11_OUTPUT : SH_HLSL9_OUTPUT; + + ShBuiltInResources resources; + ShInitBuiltInResources(&resources); + + // TODO(geofflang): use context's caps + const gl::Caps &caps = mRenderer->getRendererCaps(); + const gl::Extensions &extensions = mRenderer->getRendererExtensions(); + + resources.MaxVertexAttribs = caps.maxVertexAttributes; + resources.MaxVertexUniformVectors = caps.maxVertexUniformVectors; + resources.MaxVaryingVectors = caps.maxVaryingVectors; + resources.MaxVertexTextureImageUnits = caps.maxVertexTextureImageUnits; + resources.MaxCombinedTextureImageUnits = caps.maxCombinedTextureImageUnits; + resources.MaxTextureImageUnits = caps.maxTextureImageUnits; + resources.MaxFragmentUniformVectors = caps.maxFragmentUniformVectors; + resources.MaxDrawBuffers = caps.maxDrawBuffers; + resources.OES_standard_derivatives = extensions.standardDerivatives; + resources.EXT_draw_buffers = extensions.drawBuffers; + resources.EXT_shader_texture_lod = 1; + // resources.OES_EGL_image_external = mRenderer->getShareHandleSupport() ? 1 : 0; // TODO: commented out until the extension is actually supported. + resources.FragmentPrecisionHigh = 1; // Shader Model 2+ always supports FP24 (s16e7) which corresponds to highp + resources.EXT_frag_depth = 1; // Shader Model 2+ always supports explicit depth output + // GLSL ES 3.0 constants + resources.MaxVertexOutputVectors = caps.maxVertexOutputComponents / 4; + resources.MaxFragmentInputVectors = caps.maxFragmentInputComponents / 4; + resources.MinProgramTexelOffset = caps.minProgramTexelOffset; + resources.MaxProgramTexelOffset = caps.maxProgramTexelOffset; + + mFragmentCompiler = ShConstructCompiler(GL_FRAGMENT_SHADER, SH_GLES2_SPEC, hlslVersion, &resources); + mVertexCompiler = ShConstructCompiler(GL_VERTEX_SHADER, SH_GLES2_SPEC, hlslVersion, &resources); + } + } +} + +void ShaderD3D::releaseCompiler() +{ + ShDestruct(mFragmentCompiler); + ShDestruct(mVertexCompiler); + + mFragmentCompiler = NULL; + mVertexCompiler = NULL; + + ShFinalize(); +} + +void ShaderD3D::parseVaryings(void *compiler) +{ + if (!mHlsl.empty()) + { + const std::vector<sh::Varying> *varyings = ShGetVaryings(compiler); + ASSERT(varyings); + + for (size_t varyingIndex = 0; varyingIndex < varyings->size(); varyingIndex++) + { + mVaryings.push_back(gl::PackedVarying((*varyings)[varyingIndex])); + } + + mUsesMultipleRenderTargets = mHlsl.find("GL_USES_MRT") != std::string::npos; + mUsesFragColor = mHlsl.find("GL_USES_FRAG_COLOR") != std::string::npos; + mUsesFragData = mHlsl.find("GL_USES_FRAG_DATA") != std::string::npos; + mUsesFragCoord = mHlsl.find("GL_USES_FRAG_COORD") != std::string::npos; + mUsesFrontFacing = mHlsl.find("GL_USES_FRONT_FACING") != std::string::npos; + mUsesPointSize = mHlsl.find("GL_USES_POINT_SIZE") != std::string::npos; + mUsesPointCoord = mHlsl.find("GL_USES_POINT_COORD") != std::string::npos; + mUsesDepthRange = mHlsl.find("GL_USES_DEPTH_RANGE") != std::string::npos; + mUsesFragDepth = mHlsl.find("GL_USES_FRAG_DEPTH") != std::string::npos; + mUsesDiscardRewriting = mHlsl.find("ANGLE_USES_DISCARD_REWRITING") != std::string::npos; + mUsesNestedBreak = mHlsl.find("ANGLE_USES_NESTED_BREAK") != std::string::npos; + } +} + +void ShaderD3D::resetVaryingsRegisterAssignment() +{ + for (size_t varyingIndex = 0; varyingIndex < mVaryings.size(); varyingIndex++) + { + mVaryings[varyingIndex].resetRegisterAssignment(); + } +} + +// initialize/clean up previous state +void ShaderD3D::uncompile() +{ + // set by compileToHLSL + mHlsl.clear(); + mInfoLog.clear(); + + mUsesMultipleRenderTargets = false; + mUsesFragColor = false; + mUsesFragData = false; + mUsesFragCoord = false; + mUsesFrontFacing = false; + mUsesPointSize = false; + mUsesPointCoord = false; + mUsesDepthRange = false; + mUsesFragDepth = false; + mShaderVersion = 100; + mUsesDiscardRewriting = false; + mUsesNestedBreak = false; + + mVaryings.clear(); + mUniforms.clear(); + mInterfaceBlocks.clear(); + mActiveAttributes.clear(); + mActiveOutputVariables.clear(); +} + +void ShaderD3D::compileToHLSL(void *compiler, const std::string &source) +{ + // ensure the compiler is loaded + initializeCompiler(); + + int compileOptions = (SH_OBJECT_CODE | SH_VARIABLES); + std::string sourcePath; + if (gl::perfActive()) + { + sourcePath = getTempPath(); + writeFile(sourcePath.c_str(), source.c_str(), source.length()); + compileOptions |= SH_LINE_DIRECTIVES; + } + + int result; + if (sourcePath.empty()) + { + const char* sourceStrings[] = + { + source.c_str(), + }; + + result = ShCompile(compiler, sourceStrings, ArraySize(sourceStrings), compileOptions); + } + else + { + const char* sourceStrings[] = + { + sourcePath.c_str(), + source.c_str(), + }; + + result = ShCompile(compiler, sourceStrings, ArraySize(sourceStrings), compileOptions | SH_SOURCE_PATH); + } + + size_t shaderVersion = 100; + ShGetInfo(compiler, SH_SHADER_VERSION, &shaderVersion); + + mShaderVersion = static_cast<int>(shaderVersion); + + if (shaderVersion == 300 && mRenderer->getCurrentClientVersion() < 3) + { + mInfoLog = "GLSL ES 3.00 is not supported by OpenGL ES 2.0 contexts"; + TRACE("\n%s", mInfoLog.c_str()); + } + else if (result) + { + size_t objCodeLen = 0; + ShGetInfo(compiler, SH_OBJECT_CODE_LENGTH, &objCodeLen); + + char* outputHLSL = new char[objCodeLen]; + ShGetObjectCode(compiler, outputHLSL); + +#ifdef _DEBUG + std::ostringstream hlslStream; + hlslStream << "// GLSL\n"; + hlslStream << "//\n"; + + size_t curPos = 0; + while (curPos != std::string::npos) + { + size_t nextLine = source.find("\n", curPos); + size_t len = (nextLine == std::string::npos) ? std::string::npos : (nextLine - curPos + 1); + + hlslStream << "// " << source.substr(curPos, len); + + curPos = (nextLine == std::string::npos) ? std::string::npos : (nextLine + 1); + } + hlslStream << "\n\n"; + hlslStream << outputHLSL; + mHlsl = hlslStream.str(); +#else + mHlsl = outputHLSL; +#endif + + SafeDeleteArray(outputHLSL); + + mUniforms = *GetShaderVariables(ShGetUniforms(compiler)); + + for (size_t uniformIndex = 0; uniformIndex < mUniforms.size(); uniformIndex++) + { + const sh::Uniform &uniform = mUniforms[uniformIndex]; + + if (uniform.staticUse) + { + unsigned int index = -1; + bool result = ShGetUniformRegister(compiler, uniform.name.c_str(), &index); + UNUSED_ASSERTION_VARIABLE(result); + ASSERT(result); + + mUniformRegisterMap[uniform.name] = index; + } + } + + mInterfaceBlocks = *GetShaderVariables(ShGetInterfaceBlocks(compiler)); + + for (size_t blockIndex = 0; blockIndex < mInterfaceBlocks.size(); blockIndex++) + { + const sh::InterfaceBlock &interfaceBlock = mInterfaceBlocks[blockIndex]; + + if (interfaceBlock.staticUse) + { + unsigned int index = -1; + bool result = ShGetInterfaceBlockRegister(compiler, interfaceBlock.name.c_str(), &index); + UNUSED_ASSERTION_VARIABLE(result); + ASSERT(result); + + mInterfaceBlockRegisterMap[interfaceBlock.name] = index; + } + } + } + else + { + size_t infoLogLen = 0; + ShGetInfo(compiler, SH_INFO_LOG_LENGTH, &infoLogLen); + + char* infoLog = new char[infoLogLen]; + ShGetInfoLog(compiler, infoLog); + mInfoLog = infoLog; + + TRACE("\n%s", mInfoLog.c_str()); + } +} + +rx::D3DWorkaroundType ShaderD3D::getD3DWorkarounds() const +{ + if (mUsesDiscardRewriting) + { + // ANGLE issue 486: + // Work-around a D3D9 compiler bug that presents itself when using conditional discard, by disabling optimization + return rx::ANGLE_D3D_WORKAROUND_SKIP_OPTIMIZATION; + } + + if (mUsesNestedBreak) + { + // ANGLE issue 603: + // Work-around a D3D9 compiler bug that presents itself when using break in a nested loop, by maximizing optimization + // We want to keep the use of ANGLE_D3D_WORKAROUND_MAX_OPTIMIZATION minimal to prevent hangs, so usesDiscard takes precedence + return rx::ANGLE_D3D_WORKAROUND_MAX_OPTIMIZATION; + } + + return rx::ANGLE_D3D_WORKAROUND_NONE; +} + +// true if varying x has a higher priority in packing than y +bool ShaderD3D::compareVarying(const gl::PackedVarying &x, const gl::PackedVarying &y) +{ + if (x.type == y.type) + { + return x.arraySize > y.arraySize; + } + + // Special case for handling structs: we sort these to the end of the list + if (x.type == GL_STRUCT_ANGLEX) + { + return false; + } + + if (y.type == GL_STRUCT_ANGLEX) + { + return true; + } + + return gl::VariableSortOrder(x.type) < gl::VariableSortOrder(y.type); +} + +unsigned int ShaderD3D::getUniformRegister(const std::string &uniformName) const +{ + ASSERT(mUniformRegisterMap.count(uniformName) > 0); + return mUniformRegisterMap.find(uniformName)->second; +} + +unsigned int ShaderD3D::getInterfaceBlockRegister(const std::string &blockName) const +{ + ASSERT(mInterfaceBlockRegisterMap.count(blockName) > 0); + return mInterfaceBlockRegisterMap.find(blockName)->second; +} + +void *ShaderD3D::getCompiler() +{ + if (mType == GL_VERTEX_SHADER) + { + return mVertexCompiler; + } + else + { + ASSERT(mType == GL_FRAGMENT_SHADER); + return mFragmentCompiler; + } +} + +ShShaderOutput ShaderD3D::getCompilerOutputType(GLenum shader) +{ + void *compiler = NULL; + + switch (shader) + { + case GL_VERTEX_SHADER: compiler = mVertexCompiler; break; + case GL_FRAGMENT_SHADER: compiler = mFragmentCompiler; break; + default: UNREACHABLE(); return SH_HLSL9_OUTPUT; + } + + size_t outputType = 0; + ShGetInfo(compiler, SH_OUTPUT_TYPE, &outputType); + + return static_cast<ShShaderOutput>(outputType); +} + +bool ShaderD3D::compile(const std::string &source) +{ + uncompile(); + + void *compiler = getCompiler(); + + compileToHLSL(compiler, source); + + if (mType == GL_VERTEX_SHADER) + { + parseAttributes(compiler); + } + + parseVaryings(compiler); + + if (mType == GL_FRAGMENT_SHADER) + { + std::sort(mVaryings.begin(), mVaryings.end(), compareVarying); + + const std::string &hlsl = getTranslatedSource(); + if (!hlsl.empty()) + { + mActiveOutputVariables = *GetShaderVariables(ShGetOutputVariables(compiler)); + FilterInactiveVariables(&mActiveOutputVariables); + } + } + + return !getTranslatedSource().empty(); +} + +void ShaderD3D::parseAttributes(void *compiler) +{ + const std::string &hlsl = getTranslatedSource(); + if (!hlsl.empty()) + { + mActiveAttributes = *GetShaderVariables(ShGetAttributes(compiler)); + FilterInactiveVariables(&mActiveAttributes); + } +} + +int ShaderD3D::getSemanticIndex(const std::string &attributeName) const +{ + if (!attributeName.empty()) + { + int semanticIndex = 0; + for (size_t attributeIndex = 0; attributeIndex < mActiveAttributes.size(); attributeIndex++) + { + const sh::ShaderVariable &attribute = mActiveAttributes[attributeIndex]; + + if (attribute.name == attributeName) + { + return semanticIndex; + } + + semanticIndex += gl::VariableRegisterCount(attribute.type); + } + } + + return -1; +} + +} |