void Shader::resolveCompile()
{
if (!mState.compilePending())
{
return;
}
ASSERT(mBoundCompiler.get());
ShHandle compilerHandle = mBoundCompiler->getCompilerHandle(mState.mShaderType);
std::vector<const char *> srcStrings;
if (!mLastCompiledSourcePath.empty())
{
srcStrings.push_back(mLastCompiledSourcePath.c_str());
}
srcStrings.push_back(mLastCompiledSource.c_str());
if (!sh::Compile(compilerHandle, &srcStrings[0], srcStrings.size(), mLastCompileOptions))
{
mInfoLog = sh::GetInfoLog(compilerHandle);
WARN() << std::endl << mInfoLog;
mState.mCompileStatus = CompileStatus::NOT_COMPILED;
return;
}
mState.mTranslatedSource = sh::GetObjectCode(compilerHandle);
#if !defined(NDEBUG)
// Prefix translated shader with commented out un-translated shader.
// Useful in diagnostics tools which capture the shader source.
std::ostringstream shaderStream;
shaderStream << "// GLSL\n";
shaderStream << "//\n";
std::istringstream inputSourceStream(mState.mSource);
std::string line;
while (std::getline(inputSourceStream, line))
{
// Remove null characters from the source line
line.erase(std::remove(line.begin(), line.end(), '\0'), line.end());
shaderStream << "// " << line << std::endl;
}
shaderStream << "\n\n";
shaderStream << mState.mTranslatedSource;
mState.mTranslatedSource = shaderStream.str();
#endif // !defined(NDEBUG)
// Gather the shader information
mState.mShaderVersion = sh::GetShaderVersion(compilerHandle);
mState.mUniforms = GetShaderVariables(sh::GetUniforms(compilerHandle));
mState.mUniformBlocks = GetShaderVariables(sh::GetUniformBlocks(compilerHandle));
mState.mShaderStorageBlocks = GetShaderVariables(sh::GetShaderStorageBlocks(compilerHandle));
switch (mState.mShaderType)
{
case ShaderType::Compute:
{
mState.mLocalSize = sh::GetComputeShaderLocalGroupSize(compilerHandle);
if (mState.mLocalSize.isDeclared())
{
angle::CheckedNumeric<uint32_t> checked_local_size_product(mState.mLocalSize[0]);
checked_local_size_product *= mState.mLocalSize[1];
checked_local_size_product *= mState.mLocalSize[2];
if (!checked_local_size_product.IsValid())
{
WARN() << std::endl
<< "Integer overflow when computing the product of local_size_x, "
<< "local_size_y and local_size_z.";
mState.mCompileStatus = CompileStatus::NOT_COMPILED;
return;
}
if (checked_local_size_product.ValueOrDie() >
mCurrentMaxComputeWorkGroupInvocations)
{
WARN() << std::endl
<< "The total number of invocations within a work group exceeds "
<< "MAX_COMPUTE_WORK_GROUP_INVOCATIONS.";
mState.mCompileStatus = CompileStatus::NOT_COMPILED;
return;
}
}
break;
}
case ShaderType::Vertex:
{
{
mState.mOutputVaryings = GetShaderVariables(sh::GetOutputVaryings(compilerHandle));
mState.mAllAttributes = GetShaderVariables(sh::GetAttributes(compilerHandle));
mState.mActiveAttributes = GetActiveShaderVariables(&mState.mAllAttributes);
mState.mNumViews = sh::GetVertexShaderNumViews(compilerHandle);
}
break;
}
case ShaderType::Fragment:
{
mState.mInputVaryings = GetShaderVariables(sh::GetInputVaryings(compilerHandle));
// TODO(jmadill): Figure out why we only sort in the FS, and if we need to.
std::sort(mState.mInputVaryings.begin(), mState.mInputVaryings.end(), CompareShaderVar);
mState.mActiveOutputVariables =
GetActiveShaderVariables(sh::GetOutputVariables(compilerHandle));
break;
}
case ShaderType::Geometry:
{
mState.mInputVaryings = GetShaderVariables(sh::GetInputVaryings(compilerHandle));
mState.mOutputVaryings = GetShaderVariables(sh::GetOutputVaryings(compilerHandle));
if (sh::HasValidGeometryShaderInputPrimitiveType(compilerHandle))
{
mState.mGeometryShaderInputPrimitiveType = FromGLenum<PrimitiveMode>(
sh::GetGeometryShaderInputPrimitiveType(compilerHandle));
}
if (sh::HasValidGeometryShaderOutputPrimitiveType(compilerHandle))
{
mState.mGeometryShaderOutputPrimitiveType = FromGLenum<PrimitiveMode>(
sh::GetGeometryShaderOutputPrimitiveType(compilerHandle));
}
if (sh::HasValidGeometryShaderMaxVertices(compilerHandle))
{
mState.mGeometryShaderMaxVertices =
sh::GetGeometryShaderMaxVertices(compilerHandle);
}
mState.mGeometryShaderInvocations = sh::GetGeometryShaderInvocations(compilerHandle);
break;
}
default:
UNREACHABLE();
}
ASSERT(!mState.mTranslatedSource.empty());
bool success = mImplementation->postTranslateCompile(mBoundCompiler.get(), &mInfoLog);
mState.mCompileStatus = success ? CompileStatus::COMPILED : CompileStatus::NOT_COMPILED;
}
void Shader::compile(Compiler *compiler)
{
mData.mTranslatedSource.clear();
mInfoLog.clear();
mData.mShaderVersion = 100;
mData.mVaryings.clear();
mData.mUniforms.clear();
mData.mInterfaceBlocks.clear();
mData.mActiveAttributes.clear();
mData.mActiveOutputVariables.clear();
ShHandle compilerHandle = compiler->getCompilerHandle(mData.mShaderType);
std::stringstream sourceStream;
std::string sourcePath;
int additionalOptions =
mImplementation->prepareSourceAndReturnOptions(&sourceStream, &sourcePath);
int compileOptions = (SH_OBJECT_CODE | SH_VARIABLES | additionalOptions);
// Some targets (eg D3D11 Feature Level 9_3 and below) do not support non-constant loop indexes
// in fragment shaders. Shader compilation will fail. To provide a better error message we can
// instruct the compiler to pre-validate.
if (mRendererLimitations.shadersRequireIndexedLoopValidation)
{
compileOptions |= SH_VALIDATE_LOOP_INDEXING;
}
std::string sourceString = sourceStream.str();
std::vector<const char *> sourceCStrings;
if (!sourcePath.empty())
{
sourceCStrings.push_back(sourcePath.c_str());
}
sourceCStrings.push_back(sourceString.c_str());
bool result =
ShCompile(compilerHandle, &sourceCStrings[0], sourceCStrings.size(), compileOptions);
if (!result)
{
mInfoLog = ShGetInfoLog(compilerHandle);
TRACE("\n%s", mInfoLog.c_str());
mCompiled = false;
return;
}
mData.mTranslatedSource = ShGetObjectCode(compilerHandle);
#ifndef NDEBUG
// Prefix translated shader with commented out un-translated shader.
// Useful in diagnostics tools which capture the shader source.
std::ostringstream shaderStream;
shaderStream << "// GLSL\n";
shaderStream << "//\n";
size_t curPos = 0;
while (curPos != std::string::npos)
{
size_t nextLine = mData.mSource.find("\n", curPos);
size_t len = (nextLine == std::string::npos) ? std::string::npos : (nextLine - curPos + 1);
shaderStream << "// " << mData.mSource.substr(curPos, len);
curPos = (nextLine == std::string::npos) ? std::string::npos : (nextLine + 1);
}
shaderStream << "\n\n";
shaderStream << mData.mTranslatedSource;
mData.mTranslatedSource = shaderStream.str();
#endif
// Gather the shader information
mData.mShaderVersion = ShGetShaderVersion(compilerHandle);
mData.mVaryings = GetShaderVariables(ShGetVaryings(compilerHandle));
mData.mUniforms = GetShaderVariables(ShGetUniforms(compilerHandle));
mData.mInterfaceBlocks = GetShaderVariables(ShGetInterfaceBlocks(compilerHandle));
if (mData.mShaderType == GL_VERTEX_SHADER)
{
mData.mActiveAttributes = GetActiveShaderVariables(ShGetAttributes(compilerHandle));
}
else
{
ASSERT(mData.mShaderType == GL_FRAGMENT_SHADER);
// TODO(jmadill): Figure out why we only sort in the FS, and if we need to.
std::sort(mData.mVaryings.begin(), mData.mVaryings.end(), CompareShaderVar);
mData.mActiveOutputVariables =
GetActiveShaderVariables(ShGetOutputVariables(compilerHandle));
}
ASSERT(!mData.mTranslatedSource.empty());
mCompiled = mImplementation->postTranslateCompile(compiler, &mInfoLog);
}