void DX11PixelShader::Initialize(const string& shaderFileName,
ID3D11Device* pDevice)
{
//Force strict compile, which might not allow for legacy syntax.
UINT compileFlags = D3DCOMPILE_ENABLE_STRICTNESS;
#ifdef POLY_DEBUG_SHADERS
//Insert debug file/line/type/symbol information into the output code.
compileFlags |= D3DCOMPILE_DEBUG;
//Treat all warnings as errors.
compileFlags |= D3DCOMPILE_WARNINGS_ARE_ERRORS;
#endif
//Interfaces used to return arbitrary length data.
ID3D10Blob* pErrorMessage;
ID3D10Blob* pPixelShaderBlob;
//Load and compile the pixel shader.
HRESULT result = D3DX11CompileFromFile(
(std::wstring(shaderFileName.begin(),shaderFileName.end())).c_str(),
nullptr,nullptr,"Main","ps_5_0",compileFlags,0,nullptr,
&pPixelShaderBlob,&pErrorMessage,nullptr);
if (FAILED(result))
{
if (pErrorMessage != nullptr)
{
//Log the shader compilation errors.
string compileErrors((char*)(pErrorMessage->GetBufferPointer()));
pErrorMessage->Release();
throw Exception("Direct3D 11 init failed (CompilePixelShader): " +
compileErrors + "." + DEBUG_INFO,result);
}
else
{
throw Exception("Direct3D 11 init failed (CompilePixelShader)." +
DEBUG_INFO,result);
}
}
//Encapsulate the pixel shader into a shader object.
result = pDevice->CreatePixelShader(pPixelShaderBlob->GetBufferPointer(),
pPixelShaderBlob->GetBufferSize(),nullptr,&mpPixelShader);
if (FAILED(result))
{
throw Exception("Direct3D 11 init failed (CreatePixelShader)." +
DEBUG_INFO,result);
}
//This object is no longer needed.
pPixelShaderBlob->Release();
}
CComPtr<ID3DBlob> SpriteGame::compileShader(const char* filename, const char* entryPoint, const char* shaderVersion)
{
CComPtr<ID3DBlob> compiledShader(nullptr);
CComPtr<ID3DBlob> compileErrors(nullptr);
HRESULT result = D3DX11CompileFromFile(filename, nullptr, nullptr, entryPoint, shaderVersion, 0, 0, nullptr, &compiledShader, &compileErrors, nullptr);
if(compileErrors != nullptr)
MessageBox(nullptr, static_cast<char*>(compileErrors->GetBufferPointer()), "Shader Compile Error", MB_OK);
if(FAILED(result))
return nullptr;
return compiledShader;
}
