LinkResult ProgramGL::link(const gl::Data &data, gl::InfoLog &infoLog,
gl::Shader *fragmentShader, gl::Shader *vertexShader,
const std::vector<std::string> &transformFeedbackVaryings,
GLenum transformFeedbackBufferMode,
int *registers, std::vector<gl::LinkedVarying> *linkedVaryings,
std::map<int, gl::VariableLocation> *outputVariables)
{
// Reset the program state, delete the current program if one exists
reset();
ShaderGL *vertexShaderGL = GetImplAs<ShaderGL>(vertexShader);
ShaderGL *fragmentShaderGL = GetImplAs<ShaderGL>(fragmentShader);
// Generate a new program, make sure one doesn't already exist
ASSERT(mProgramID == 0);
mProgramID = mFunctions->createProgram();
// Attach the shaders
mFunctions->attachShader(mProgramID, vertexShaderGL->getShaderID());
mFunctions->attachShader(mProgramID, fragmentShaderGL->getShaderID());
// TODO: bind attribute locations?
// Link and verify
mFunctions->linkProgram(mProgramID);
GLint linkStatus = GL_FALSE;
mFunctions->getProgramiv(mProgramID, GL_LINK_STATUS, &linkStatus);
ASSERT(linkStatus == GL_TRUE);
if (linkStatus == GL_FALSE)
{
// Linking failed, put the error into the info log
GLint infoLogLength = 0;
mFunctions->getProgramiv(mProgramID, GL_INFO_LOG_LENGTH, &infoLogLength);
std::vector<char> buf(infoLogLength);
mFunctions->getProgramInfoLog(mProgramID, infoLogLength, nullptr, &buf[0]);
mFunctions->deleteProgram(mProgramID);
mProgramID = 0;
infoLog.append(&buf[0]);
TRACE("\n%s", &buf[0]);
// TODO, return GL_OUT_OF_MEMORY or just fail the link? This is an unexpected case
return LinkResult(false, gl::Error(GL_NO_ERROR));
}
// Query the uniform information
// TODO: A lot of this logic should be done at the gl::Program level
GLint activeUniformMaxLength = 0;
mFunctions->getProgramiv(mProgramID, GL_ACTIVE_UNIFORM_MAX_LENGTH, &activeUniformMaxLength);
std::vector<GLchar> uniformNameBuffer(activeUniformMaxLength);
GLint uniformCount = 0;
mFunctions->getProgramiv(mProgramID, GL_ACTIVE_UNIFORMS, &uniformCount);
for (GLint i = 0; i < uniformCount; i++)
{
GLsizei uniformNameLength = 0;
GLint uniformSize = 0;
GLenum uniformType = GL_NONE;
mFunctions->getActiveUniform(mProgramID, i, uniformNameBuffer.size(), &uniformNameLength, &uniformSize, &uniformType, &uniformNameBuffer[0]);
std::string uniformName = gl::ParseUniformName(std::string(&uniformNameBuffer[0], uniformNameLength), nullptr);
for (size_t arrayIndex = 0; arrayIndex < static_cast<size_t>(uniformSize); arrayIndex++)
{
std::string locationName = uniformName;
if (uniformSize > 1)
{
locationName += "[" + Str(arrayIndex) + "]";
}
GLint location = mFunctions->getUniformLocation(mProgramID, locationName.c_str());
if (location >= 0)
{
// Make sure the uniform index array is large enough
if (static_cast<size_t>(location) >= mUniformIndex.size())
{
mUniformIndex.resize(location + 1);
}
mUniformIndex[location] = gl::VariableLocation(uniformName, arrayIndex, static_cast<unsigned int>(mUniforms.size()));
}
}
// ANGLE uses 0 to identify an non-array uniform.
unsigned int arraySize = (uniformSize > 1) ? static_cast<unsigned int>(uniformSize) : 0;
// TODO: determine uniform precision
mUniforms.push_back(new gl::LinkedUniform(uniformType, GL_NONE, uniformName, arraySize, -1, sh::BlockMemberInfo::getDefaultBlockInfo()));
}
// Query the attribute information
GLint activeAttributeMaxLength = 0;
mFunctions->getProgramiv(mProgramID, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, &activeAttributeMaxLength);
std::vector<GLchar> attributeNameBuffer(activeAttributeMaxLength);
GLint attributeCount = 0;
mFunctions->getProgramiv(mProgramID, GL_ACTIVE_ATTRIBUTES, &attributeCount);
for (GLint i = 0; i < attributeCount; i++)
{
GLsizei attributeNameLength = 0;
GLint attributeSize = 0;
GLenum attributeType = GL_NONE;
mFunctions->getActiveAttrib(mProgramID, i, attributeNameBuffer.size(), &attributeNameLength, &attributeSize, &attributeType, &attributeNameBuffer[0]);
std::string attributeName(&attributeNameBuffer[0], attributeNameLength);
// TODO: determine attribute precision
setShaderAttribute(static_cast<size_t>(i), attributeType, GL_NONE, attributeName, attributeSize, i);
}
return LinkResult(true, gl::Error(GL_NO_ERROR));
}
gl::Error HLSLCompiler::compileToBinary(gl::InfoLog &infoLog, const std::string &hlsl, const std::string &profile,
const std::vector<CompileConfig> &configs, const D3D_SHADER_MACRO *overrideMacros,
ID3DBlob **outCompiledBlob, std::string *outDebugInfo) const
{
#if !defined(ANGLE_ENABLE_WINDOWS_STORE)
ASSERT(mD3DCompilerModule);
#endif
ASSERT(mD3DCompileFunc);
#if !defined(ANGLE_ENABLE_WINDOWS_STORE)
if (gl::perfActive())
{
std::string sourcePath = getTempPath();
std::string sourceText = FormatString("#line 2 \"%s\"\n\n%s", sourcePath.c_str(), hlsl.c_str());
writeFile(sourcePath.c_str(), sourceText.c_str(), sourceText.size());
}
#endif
const D3D_SHADER_MACRO *macros = overrideMacros ? overrideMacros : NULL;
for (size_t i = 0; i < configs.size(); ++i)
{
ID3DBlob *errorMessage = NULL;
ID3DBlob *binary = NULL;
HRESULT result = mD3DCompileFunc(hlsl.c_str(), hlsl.length(), gl::g_fakepath, macros, NULL, "main", profile.c_str(),
configs[i].flags, 0, &binary, &errorMessage);
if (errorMessage)
{
std::string message = reinterpret_cast<const char*>(errorMessage->GetBufferPointer());
SafeRelease(errorMessage);
infoLog.appendSanitized(message.c_str());
TRACE("\n%s", hlsl.c_str());
TRACE("\n%s", message.c_str());
if (message.find("error X3531:") != std::string::npos) // "can't unroll loops marked with loop attribute"
{
macros = NULL; // Disable [loop] and [flatten]
// Retry without changing compiler flags
i--;
continue;
}
}
if (SUCCEEDED(result))
{
*outCompiledBlob = binary;
#if ANGLE_SHADER_DEBUG_INFO == ANGLE_ENABLED
(*outDebugInfo) += "// COMPILER INPUT HLSL BEGIN\n\n" + hlsl + "\n// COMPILER INPUT HLSL END\n";
(*outDebugInfo) += "\n\n// ASSEMBLY BEGIN\n\n";
(*outDebugInfo) += "// Compiler configuration: " + configs[i].name + "\n// Flags:\n";
for (size_t fIx = 0; fIx < ArraySize(CompilerFlagInfos); ++fIx)
{
const char *flagName = GetCompilerFlagName(configs[i].flags, fIx);
if (flagName != nullptr)
{
(*outDebugInfo) += std::string("// ") + flagName + "\n";
}
}
(*outDebugInfo) += "// Macros:\n";
if (macros == nullptr)
{
(*outDebugInfo) += "// - : -\n";
}
else
{
for (const D3D_SHADER_MACRO *mIt = macros; mIt->Name != nullptr; ++mIt)
{
(*outDebugInfo) += std::string("// ") + mIt->Name + " : " + mIt->Definition + "\n";
}
}
(*outDebugInfo) += "\n" + disassembleBinary(binary) + "\n// ASSEMBLY END\n";
#endif
return gl::Error(GL_NO_ERROR);
}
else
{
if (result == E_OUTOFMEMORY)
{
*outCompiledBlob = NULL;
return gl::Error(GL_OUT_OF_MEMORY, "HLSL compiler had an unexpected failure, result: 0x%X.", result);
}
infoLog.append("Warning: D3D shader compilation failed with %s flags.", configs[i].name.c_str());
if (i + 1 < configs.size())
{
infoLog.append(" Retrying with %s.\n", configs[i + 1].name.c_str());
}
}
}
// None of the configurations succeeded in compiling this shader but the compiler is still intact
*outCompiledBlob = NULL;
return gl::Error(GL_NO_ERROR);
}
gl::Error HLSLCompiler::compileToBinary(gl::InfoLog &infoLog, const std::string &hlsl, const std::string &profile,
const std::vector<CompileConfig> &configs, const D3D_SHADER_MACRO *overrideMacros,
ID3DBlob **outCompiledBlob, std::string *outDebugInfo)
{
ASSERT(mInitialized);
#if !defined(ANGLE_ENABLE_WINDOWS_STORE)
ASSERT(mD3DCompilerModule);
#endif
ASSERT(mD3DCompileFunc);
#if !defined(ANGLE_ENABLE_WINDOWS_STORE)
if (gl::DebugAnnotationsActive())
{
std::string sourcePath = getTempPath();
std::string sourceText = FormatString("#line 2 \"%s\"\n\n%s", sourcePath.c_str(), hlsl.c_str());
writeFile(sourcePath.c_str(), sourceText.c_str(), sourceText.size());
}
#endif
const D3D_SHADER_MACRO *macros = overrideMacros ? overrideMacros : nullptr;
for (size_t i = 0; i < configs.size(); ++i)
{
ID3DBlob *errorMessage = nullptr;
ID3DBlob *binary = nullptr;
HRESULT result = S_OK;
{
TRACE_EVENT0("gpu.angle", "D3DCompile");
SCOPED_ANGLE_HISTOGRAM_TIMER("GPU.ANGLE.D3DCompileMS");
result = mD3DCompileFunc(hlsl.c_str(), hlsl.length(), gl::g_fakepath, macros, nullptr,
"main", profile.c_str(), configs[i].flags, 0, &binary,
&errorMessage);
}
if (errorMessage)
{
std::string message = reinterpret_cast<const char*>(errorMessage->GetBufferPointer());
SafeRelease(errorMessage);
infoLog.appendSanitized(message.c_str());
TRACE("\n%s", hlsl.c_str());
TRACE("\n%s", message.c_str());
if ((message.find("error X3531:") != std::string::npos || // "can't unroll loops marked with loop attribute"
message.find("error X4014:") != std::string::npos) && // "cannot have gradient operations inside loops with divergent flow control",
// even though it is counter-intuitive to disable unrolling for this error,
// some very long shaders have trouble deciding which loops to unroll and
// turning off forced unrolls allows them to compile properly.
macros != nullptr)
{
macros = nullptr; // Disable [loop] and [flatten]
// Retry without changing compiler flags
i--;
continue;
}
}
if (SUCCEEDED(result))
{
*outCompiledBlob = binary;
(*outDebugInfo) += "// COMPILER INPUT HLSL BEGIN\n\n" + hlsl + "\n// COMPILER INPUT HLSL END\n";
#if ANGLE_APPEND_ASSEMBLY_TO_SHADER_DEBUG_INFO == ANGLE_ENABLED
(*outDebugInfo) += "\n\n// ASSEMBLY BEGIN\n\n";
(*outDebugInfo) += "// Compiler configuration: " + configs[i].name + "\n// Flags:\n";
for (size_t fIx = 0; fIx < ArraySize(CompilerFlagInfos); ++fIx)
{
if (IsCompilerFlagSet(configs[i].flags, CompilerFlagInfos[fIx].mFlag))
{
(*outDebugInfo) += std::string("// ") + CompilerFlagInfos[fIx].mName + "\n";
}
}
(*outDebugInfo) += "// Macros:\n";
if (macros == nullptr)
{
(*outDebugInfo) += "// - : -\n";
}
else
{
for (const D3D_SHADER_MACRO *mIt = macros; mIt->Name != nullptr; ++mIt)
{
(*outDebugInfo) += std::string("// ") + mIt->Name + " : " + mIt->Definition + "\n";
}
}
std::string disassembly;
ANGLE_TRY(disassembleBinary(binary, &disassembly));
(*outDebugInfo) += "\n" + disassembly + "\n// ASSEMBLY END\n";
#endif // ANGLE_APPEND_ASSEMBLY_TO_SHADER_DEBUG_INFO == ANGLE_ENABLED
return gl::NoError();
}
if (result == E_OUTOFMEMORY)
{
*outCompiledBlob = nullptr;
return gl::Error(GL_OUT_OF_MEMORY, "HLSL compiler had an unexpected failure, result: 0x%X.", result);
}
infoLog << "Warning: D3D shader compilation failed with " << configs[i].name << " flags. ("
<< profile << ")";
if (i + 1 < configs.size())
{
infoLog << " Retrying with " << configs[i + 1].name;
}
}
// None of the configurations succeeded in compiling this shader but the compiler is still intact
*outCompiledBlob = nullptr;
return gl::NoError();
}