std::unique_ptr<DXShader> DXShader::CreateFromBinary(ShaderStage stage, const void* data,
size_t length)
{
D3DBlob* bytecode = new D3DBlob(static_cast<unsigned int>(length), static_cast<const u8*>(data));
std::unique_ptr<DXShader> shader = CreateFromBlob(stage, bytecode);
if (!shader)
{
bytecode->Release();
return nullptr;
}
return shader;
}
std::unique_ptr<DXShader> DXShader::CreateFromSource(ShaderStage stage, const char* source,
size_t length)
{
D3DBlob* bytecode;
switch (stage)
{
case ShaderStage::Vertex:
{
if (!D3D::CompileVertexShader(std::string(source, length), &bytecode))
return nullptr;
}
break;
case ShaderStage::Geometry:
{
if (!D3D::CompileGeometryShader(std::string(source, length), &bytecode))
return nullptr;
}
break;
case ShaderStage::Pixel:
{
if (!D3D::CompilePixelShader(std::string(source, length), &bytecode))
return nullptr;
}
break;
case ShaderStage::Compute:
{
if (!D3D::CompileComputeShader(std::string(source, length), &bytecode))
return nullptr;
}
default:
return nullptr;
}
std::unique_ptr<DXShader> shader = CreateFromBlob(stage, bytecode);
if (!shader)
{
bytecode->Release();
return nullptr;
}
return shader;
}
std::shared_ptr<Shader> Shader::CreateFromMemory(RenderDevice* device, ShaderType type, const char* shaderText, const char* sourceFileName)
{
std::shared_ptr<Shader> shader;
CComPtr<ID3DBlob> errorBlob;
CComPtr<ID3DBlob> shaderBlob;
if (SUCCEEDED(D3DCompile(shaderText, strlen(shaderText), sourceFileName != nullptr ? sourceFileName : "Talon Internal",
nullptr, nullptr, D3D11::ToShaderEntryPoint(type), D3D11::ToShaderLevel(type), 0, 0, &shaderBlob, &errorBlob)))
{
std::string debugName = sourceFileName != nullptr ? sourceFileName : "Talon Internal";
shader = CreateFromBlob(device, type, shaderBlob, "Shader: " + debugName);
}
else
{
const char* errorText = (const char*)errorBlob->GetBufferPointer();
TalonLog(errorText);
}
return shader;
}
