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// Copyright 2019 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <fstream>
#include <wrl/client.h>
#include "Common/Assert.h"
#include "Common/FileUtil.h"
#include "Common/Logging/Log.h"
#include "Common/MsgHandler.h"
#include "Common/StringUtil.h"
#include "VideoBackends/D3DCommon/Shader.h"
#include "VideoCommon/VideoConfig.h"
namespace D3DCommon
{
Shader::Shader(ShaderStage stage, BinaryData bytecode)
: AbstractShader(stage), m_bytecode(std::move(bytecode))
{
}
Shader::~Shader() = default;
AbstractShader::BinaryData Shader::GetBinary() const
{
return m_bytecode;
}
static const char* GetCompileTarget(D3D_FEATURE_LEVEL feature_level, ShaderStage stage)
{
switch (stage)
{
case ShaderStage::Vertex:
{
switch (feature_level)
{
case D3D_FEATURE_LEVEL_10_0:
return "vs_4_0";
case D3D_FEATURE_LEVEL_10_1:
return "vs_4_1";
default:
return "vs_5_0";
}
}
case ShaderStage::Geometry:
{
switch (feature_level)
{
case D3D_FEATURE_LEVEL_10_0:
return "gs_4_0";
case D3D_FEATURE_LEVEL_10_1:
return "gs_4_1";
default:
return "gs_5_0";
}
}
case ShaderStage::Pixel:
{
switch (feature_level)
{
case D3D_FEATURE_LEVEL_10_0:
return "ps_4_0";
case D3D_FEATURE_LEVEL_10_1:
return "ps_4_1";
default:
return "ps_5_0";
}
}
case ShaderStage::Compute:
{
switch (feature_level)
{
case D3D_FEATURE_LEVEL_10_0:
case D3D_FEATURE_LEVEL_10_1:
return "";
default:
return "cs_5_0";
}
}
default:
return "";
}
}
bool Shader::CompileShader(D3D_FEATURE_LEVEL feature_level, BinaryData* out_bytecode,
ShaderStage stage, const char* source, size_t length)
{
static constexpr D3D_SHADER_MACRO macros[] = {{"API_D3D", "1"}, {nullptr, nullptr}};
const UINT flags = g_ActiveConfig.bEnableValidationLayer ?
(D3DCOMPILE_DEBUG | D3DCOMPILE_SKIP_OPTIMIZATION) :
(D3DCOMPILE_OPTIMIZATION_LEVEL3 | D3DCOMPILE_SKIP_VALIDATION);
const char* target = GetCompileTarget(feature_level, stage);
Microsoft::WRL::ComPtr<ID3DBlob> code;
Microsoft::WRL::ComPtr<ID3DBlob> errors;
HRESULT hr = d3d_compile(source, length, nullptr, macros, nullptr, "main", target, flags, 0,
&code, &errors);
if (FAILED(hr))
{
static int num_failures = 0;
std::string filename = StringFromFormat(
"%sbad_%s_%04i.txt", File::GetUserPath(D_DUMP_IDX).c_str(), target, num_failures++);
std::ofstream file;
File::OpenFStream(file, filename, std::ios_base::out);
file.write(source, length);
file << "\n";
file.write(static_cast<const char*>(errors->GetBufferPointer()), errors->GetBufferSize());
file.close();
PanicAlert("Failed to compile %s:\nDebug info (%s):\n%s", filename.c_str(), target,
static_cast<const char*>(errors->GetBufferPointer()));
return false;
}
if (errors && errors->GetBufferSize() > 0)
{
WARN_LOG(VIDEO, "%s compilation succeeded with warnings:\n%s", target,
static_cast<const char*>(errors->GetBufferPointer()));
}
out_bytecode->resize(code->GetBufferSize());
std::memcpy(out_bytecode->data(), code->GetBufferPointer(), code->GetBufferSize());
return true;
}
AbstractShader::BinaryData Shader::CreateByteCode(const void* data, size_t length)
{
BinaryData bytecode(length);
std::memcpy(bytecode.data(), data, length);
return bytecode;
}
} // namespace D3DCommon
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