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https://github.com/dolphin-emu/dolphin.git
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e60268bd42
Greatly simplifies the overall interface when it comes to compiling shaders. Also allows getting rid of a std::string overload of the same name. Now std::string and const char* both go through the same function.
140 lines
3.5 KiB
C++
140 lines
3.5 KiB
C++
// Copyright 2019 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include <fstream>
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#include <wrl/client.h>
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#include "Common/Assert.h"
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#include "Common/FileUtil.h"
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#include "Common/Logging/Log.h"
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#include "Common/MsgHandler.h"
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#include "Common/StringUtil.h"
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#include "VideoBackends/D3DCommon/Shader.h"
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#include "VideoCommon/VideoConfig.h"
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namespace D3DCommon
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{
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Shader::Shader(ShaderStage stage, BinaryData bytecode)
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: AbstractShader(stage), m_bytecode(std::move(bytecode))
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{
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}
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Shader::~Shader() = default;
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AbstractShader::BinaryData Shader::GetBinary() const
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{
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return m_bytecode;
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}
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static const char* GetCompileTarget(D3D_FEATURE_LEVEL feature_level, ShaderStage stage)
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{
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switch (stage)
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{
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case ShaderStage::Vertex:
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{
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switch (feature_level)
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{
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case D3D_FEATURE_LEVEL_10_0:
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return "vs_4_0";
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case D3D_FEATURE_LEVEL_10_1:
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return "vs_4_1";
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default:
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return "vs_5_0";
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}
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}
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case ShaderStage::Geometry:
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{
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switch (feature_level)
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{
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case D3D_FEATURE_LEVEL_10_0:
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return "gs_4_0";
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case D3D_FEATURE_LEVEL_10_1:
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return "gs_4_1";
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default:
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return "gs_5_0";
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}
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}
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case ShaderStage::Pixel:
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{
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switch (feature_level)
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{
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case D3D_FEATURE_LEVEL_10_0:
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return "ps_4_0";
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case D3D_FEATURE_LEVEL_10_1:
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return "ps_4_1";
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default:
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return "ps_5_0";
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}
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}
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case ShaderStage::Compute:
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{
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switch (feature_level)
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{
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case D3D_FEATURE_LEVEL_10_0:
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case D3D_FEATURE_LEVEL_10_1:
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return "";
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default:
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return "cs_5_0";
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}
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}
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default:
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return "";
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}
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}
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bool Shader::CompileShader(D3D_FEATURE_LEVEL feature_level, BinaryData* out_bytecode,
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ShaderStage stage, std::string_view source)
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{
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static constexpr D3D_SHADER_MACRO macros[] = {{"API_D3D", "1"}, {nullptr, nullptr}};
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const UINT flags = g_ActiveConfig.bEnableValidationLayer ?
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(D3DCOMPILE_DEBUG | D3DCOMPILE_SKIP_OPTIMIZATION) :
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(D3DCOMPILE_OPTIMIZATION_LEVEL3 | D3DCOMPILE_SKIP_VALIDATION);
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const char* target = GetCompileTarget(feature_level, stage);
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Microsoft::WRL::ComPtr<ID3DBlob> code;
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Microsoft::WRL::ComPtr<ID3DBlob> errors;
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HRESULT hr = d3d_compile(source.data(), source.size(), nullptr, macros, nullptr, "main", target,
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flags, 0, &code, &errors);
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if (FAILED(hr))
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{
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static int num_failures = 0;
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std::string filename = StringFromFormat(
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"%sbad_%s_%04i.txt", File::GetUserPath(D_DUMP_IDX).c_str(), target, num_failures++);
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std::ofstream file;
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File::OpenFStream(file, filename, std::ios_base::out);
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file.write(source.data(), source.size());
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file << "\n";
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file.write(static_cast<const char*>(errors->GetBufferPointer()), errors->GetBufferSize());
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file.close();
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PanicAlert("Failed to compile %s:\nDebug info (%s):\n%s", filename.c_str(), target,
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static_cast<const char*>(errors->GetBufferPointer()));
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return false;
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}
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if (errors && errors->GetBufferSize() > 0)
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{
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WARN_LOG(VIDEO, "%s compilation succeeded with warnings:\n%s", target,
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static_cast<const char*>(errors->GetBufferPointer()));
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}
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out_bytecode->resize(code->GetBufferSize());
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std::memcpy(out_bytecode->data(), code->GetBufferPointer(), code->GetBufferSize());
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return true;
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}
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AbstractShader::BinaryData Shader::CreateByteCode(const void* data, size_t length)
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{
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BinaryData bytecode(length);
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std::memcpy(bytecode.data(), data, length);
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return bytecode;
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}
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} // namespace D3DCommon
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