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Diffstat (limited to 'src/3rdparty/angle/src/libANGLE/renderer/d3d/ShaderD3D.cpp')
| -rw-r--r-- | src/3rdparty/angle/src/libANGLE/renderer/d3d/ShaderD3D.cpp | 388 |
1 files changed, 388 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libANGLE/renderer/d3d/ShaderD3D.cpp b/src/3rdparty/angle/src/libANGLE/renderer/d3d/ShaderD3D.cpp new file mode 100644 index 0000000000..7d522a95d4 --- /dev/null +++ b/src/3rdparty/angle/src/libANGLE/renderer/d3d/ShaderD3D.cpp @@ -0,0 +1,388 @@ +// +// 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 "libANGLE/Shader.h" +#include "libANGLE/Compiler.h" +#include "libANGLE/renderer/d3d/RendererD3D.h" +#include "libANGLE/renderer/d3d/ShaderD3D.h" +#include "libANGLE/renderer/d3d/CompilerD3D.h" +#include "libANGLE/features.h" + +#include "common/utilities.h" + +// Definitions local to the translation unit +namespace +{ + +const char *GetShaderTypeString(GLenum type) +{ + switch (type) + { + case GL_VERTEX_SHADER: + return "VERTEX"; + + case GL_FRAGMENT_SHADER: + return "FRAGMENT"; + + default: + UNREACHABLE(); + return ""; + } +} + +} + +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++; + } + } +} + +template <typename VarT> +const std::vector<VarT> *GetShaderVariables(const std::vector<VarT> *variableList) +{ + ASSERT(variableList); + return variableList; +} + +ShaderD3D::ShaderD3D(GLenum type) + : mShaderType(type), + mShaderVersion(100) +{ + uncompile(); +} + +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); +} + +std::string ShaderD3D::getDebugInfo() const +{ + return mDebugInfo + std::string("\n// ") + GetShaderTypeString(mShaderType) + " SHADER END\n"; +} + + +void ShaderD3D::parseVaryings(ShHandle compiler) +{ + if (!mTranslatedSource.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 = mTranslatedSource.find("GL_USES_MRT") != std::string::npos; + mUsesFragColor = mTranslatedSource.find("GL_USES_FRAG_COLOR") != std::string::npos; + mUsesFragData = mTranslatedSource.find("GL_USES_FRAG_DATA") != std::string::npos; + mUsesFragCoord = mTranslatedSource.find("GL_USES_FRAG_COORD") != std::string::npos; + mUsesFrontFacing = mTranslatedSource.find("GL_USES_FRONT_FACING") != std::string::npos; + mUsesPointSize = mTranslatedSource.find("GL_USES_POINT_SIZE") != std::string::npos; + mUsesPointCoord = mTranslatedSource.find("GL_USES_POINT_COORD") != std::string::npos; + mUsesDepthRange = mTranslatedSource.find("GL_USES_DEPTH_RANGE") != std::string::npos; + mUsesFragDepth = mTranslatedSource.find("GL_USES_FRAG_DEPTH") != std::string::npos; + mUsesDiscardRewriting = mTranslatedSource.find("ANGLE_USES_DISCARD_REWRITING") != std::string::npos; + mUsesNestedBreak = mTranslatedSource.find("ANGLE_USES_NESTED_BREAK") != std::string::npos; + mUsesDeferredInit = mTranslatedSource.find("ANGLE_USES_DEFERRED_INIT") != std::string::npos; + mRequiresIEEEStrictCompiling = mTranslatedSource.find("ANGLE_REQUIRES_IEEE_STRICT_COMPILING") != 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 + mCompilerOutputType = SH_ESSL_OUTPUT; + mTranslatedSource.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; + mUsesDeferredInit = false; + mRequiresIEEEStrictCompiling = false; + + mVaryings.clear(); + mUniforms.clear(); + mInterfaceBlocks.clear(); + mActiveAttributes.clear(); + mActiveOutputVariables.clear(); + mDebugInfo.clear(); +} + +void ShaderD3D::compileToHLSL(ShHandle compiler, const std::string &source) +{ + int compileOptions = (SH_OBJECT_CODE | SH_VARIABLES); + std::string sourcePath; + +#if !defined (ANGLE_ENABLE_WINDOWS_STORE) + if (gl::DebugAnnotationsActive()) + { + sourcePath = getTempPath(); + writeFile(sourcePath.c_str(), source.c_str(), source.length()); + compileOptions |= SH_LINE_DIRECTIVES; + } +#endif + + 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); + } + + mShaderVersion = ShGetShaderVersion(compiler); + + if (result) + { + mTranslatedSource = ShGetObjectCode(compiler); + +#ifdef _DEBUG + // Prefix hlsl shader with commented out glsl shader + // Useful in diagnostics tools like pix which capture the hlsl shaders + 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 << mTranslatedSource; + mTranslatedSource = hlslStream.str(); +#endif + + 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 = static_cast<unsigned int>(-1); + bool getUniformRegisterResult = ShGetUniformRegister(compiler, uniform.name, &index); + UNUSED_ASSERTION_VARIABLE(getUniformRegisterResult); + ASSERT(getUniformRegisterResult); + + 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 = static_cast<unsigned int>(-1); + bool blockRegisterResult = ShGetInterfaceBlockRegister(compiler, interfaceBlock.name, &index); + UNUSED_ASSERTION_VARIABLE(blockRegisterResult); + ASSERT(blockRegisterResult); + + mInterfaceBlockRegisterMap[interfaceBlock.name] = index; + } + } + } + else + { + mInfoLog = ShGetInfoLog(compiler); + + TRACE("\n%s", mInfoLog.c_str()); + } +} + +void ShaderD3D::generateWorkarounds(D3DCompilerWorkarounds *workarounds) const +{ + if (mUsesDiscardRewriting) + { + // ANGLE issue 486: + // Work-around a D3D9 compiler bug that presents itself when using conditional discard, by disabling optimization + workarounds->skipOptimization = true; + } + else 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 + workarounds->useMaxOptimization = true; + } + + if (mRequiresIEEEStrictCompiling) + { + // IEEE Strictness for D3D compiler needs to be enabled for NaNs to work. + workarounds->enableIEEEStrictness = true; + } +} + +// 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; +} + +GLenum ShaderD3D::getShaderType() const +{ + return mShaderType; +} + +ShShaderOutput ShaderD3D::getCompilerOutputType() const +{ + return mCompilerOutputType; +} + +bool ShaderD3D::compile(gl::Compiler *compiler, const std::string &source) +{ + uncompile(); + + CompilerD3D *compilerD3D = CompilerD3D::makeCompilerD3D(compiler->getImplementation()); + ShHandle compilerHandle = compilerD3D->getCompilerHandle(mShaderType); + + mCompilerOutputType = ShGetShaderOutputType(compilerHandle); + + compileToHLSL(compilerHandle, source); + + if (mShaderType == GL_VERTEX_SHADER) + { + parseAttributes(compilerHandle); + } + + parseVaryings(compilerHandle); + + if (mShaderType == GL_FRAGMENT_SHADER) + { + std::sort(mVaryings.begin(), mVaryings.end(), compareVarying); + + const std::string &hlsl = getTranslatedSource(); + if (!hlsl.empty()) + { + mActiveOutputVariables = *GetShaderVariables(ShGetOutputVariables(compilerHandle)); + FilterInactiveVariables(&mActiveOutputVariables); + } + } + +#if ANGLE_SHADER_DEBUG_INFO == ANGLE_ENABLED + mDebugInfo += std::string("// ") + GetShaderTypeString(mShaderType) + " SHADER BEGIN\n"; + mDebugInfo += "\n// GLSL BEGIN\n\n" + source + "\n\n// GLSL END\n\n\n"; + mDebugInfo += "// INITIAL HLSL BEGIN\n\n" + getTranslatedSource() + "\n// INITIAL HLSL END\n\n\n"; + // Successive steps will append more info +#else + mDebugInfo += getTranslatedSource(); +#endif + + return !getTranslatedSource().empty(); +} + +void ShaderD3D::parseAttributes(ShHandle compiler) +{ + const std::string &hlsl = getTranslatedSource(); + if (!hlsl.empty()) + { + mActiveAttributes = *GetShaderVariables(ShGetAttributes(compiler)); + FilterInactiveVariables(&mActiveAttributes); + } +} + +} |