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feat: compile shaders on linux via vkd3d

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This commit is contained in:
Jan Laupetin
2026-03-25 23:20:09 +01:00
parent b283695e1c
commit 273ea0ae30
1 changed files with 62 additions and 21 deletions
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83
src/ObjCompiling/Shader/D3DShaderCompiler.cpp
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@@ -5,12 +5,15 @@
#include <cassert>
#include <cstdint>
#include <cstring>
#include <iostream>
#include <memory>
#include <utility>
#ifdef _WIN32
#include <Windows.h>
#else
#include <dlfcn.h>
#endif
namespace
@@ -64,6 +67,19 @@ namespace
#define OAT_D3DCOMPILE_DEBUG_NAME_FOR_SOURCE 0x00400000
#define OAT_D3DCOMPILE_DEBUG_NAME_FOR_BINARY 0x00800000
#ifndef _WIN32
#ifdef __x86_64__
#define __stdcall __attribute__((ms_abi))
#else
#if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 2)) || defined(__APPLE__)
#define __stdcall __attribute__((__stdcall__)) __attribute__((__force_align_arg_pointer__))
#else
#define __stdcall __attribute__((__stdcall__))
#endif
#endif
#endif
#define STDMETHODCALLTYPE __stdcall
enum OAT_D3D_INCLUDE_TYPE : uint32_t
{
OAT_D3D_INCLUDE_LOCAL = 0,
@@ -72,9 +88,10 @@ namespace
struct OAT_ID3DInclude
{
virtual OAT_HRESULT __stdcall Open(
OAT_D3D_INCLUDE_TYPE includeType, const char* fileName, const void* parentData, const void** data, unsigned int* size) = 0;
virtual OAT_HRESULT __stdcall Close(const void* data) = 0;
// clang-format off
virtual OAT_HRESULT STDMETHODCALLTYPE Open(OAT_D3D_INCLUDE_TYPE includeType, const char* fileName, const void* parentData, const void** data, unsigned int* size) = 0;
virtual OAT_HRESULT STDMETHODCALLTYPE Close(const void* data) = 0;
// clang-format on
};
struct OAT_GUID
@@ -89,18 +106,18 @@ namespace
struct OAT_IUnknown
{
virtual OAT_HRESULT __stdcall QueryInterface(const OAT_IID& riid, void** object) = 0;
virtual OAT_HRESULT STDMETHODCALLTYPE QueryInterface(const OAT_IID& riid, void** object) = 0;
virtual OAT_ULONG __stdcall AddRef() = 0;
virtual OAT_ULONG STDMETHODCALLTYPE AddRef() = 0;
virtual OAT_ULONG __stdcall Release() = 0;
virtual OAT_ULONG STDMETHODCALLTYPE Release() = 0;
};
struct OAT_ID3DBlob : OAT_IUnknown
{
virtual void* __stdcall GetBufferPointer() = 0;
virtual void* STDMETHODCALLTYPE GetBufferPointer() = 0;
virtual OAT_SIZE_T __stdcall GetBufferSize() = 0;
virtual OAT_SIZE_T STDMETHODCALLTYPE GetBufferSize() = 0;
};
struct OAT_D3D_SHADER_MACRO
@@ -109,17 +126,17 @@ namespace
const char* Definition;
};
typedef OAT_HRESULT(__stdcall* D3DCompile_t)(const void* data,
OAT_SIZE_T dataSize,
const char* filename,
const OAT_D3D_SHADER_MACRO* defines,
OAT_ID3DInclude* include,
const char* entrypoint,
const char* target,
unsigned int flags,
unsigned int effectFlags,
OAT_ID3DBlob** shader,
OAT_ID3DBlob** errorMessages);
typedef OAT_HRESULT(STDMETHODCALLTYPE* D3DCompile_t)(const void* data,
OAT_SIZE_T dataSize,
const char* filename,
const OAT_D3D_SHADER_MACRO* defines,
OAT_ID3DInclude* include,
const char* entrypoint,
const char* target,
unsigned int flags,
unsigned int effectFlags,
OAT_ID3DBlob** shader,
OAT_ID3DBlob** errorMessages);
constexpr size_t MAX_SHADER_SIZE = 0x1900000u;
@@ -132,7 +149,7 @@ namespace
}
OAT_HRESULT
__stdcall Open(OAT_D3D_INCLUDE_TYPE includeType, const char* fileName, const void* parentData, const void** data, unsigned int* size) override
STDMETHODCALLTYPE Open(OAT_D3D_INCLUDE_TYPE includeType, const char* fileName, const void* parentData, const void** data, unsigned int* size) override
{
const auto fullFileName = shader::GetSourceFileNameForShaderAssetName(fileName);
auto file = m_search_path.Open(fullFileName);
@@ -158,7 +175,7 @@ namespace
return OAT_S_OK;
}
OAT_HRESULT __stdcall Close(const void* data) override
OAT_HRESULT STDMETHODCALLTYPE Close(const void* data) override
{
for (auto i = m_file_buffers_in_use.begin(); i != m_file_buffers_in_use.end(); ++i)
{
@@ -185,6 +202,13 @@ namespace
{
#ifdef _WIN32
con::warn("Could not initialize shader compilation. Make sure DirectX is installed on your machine if you want to make use of it.");
#else
#ifdef ARCH_x86
#define REQUIRED_VKD3D "lib32-vkd3d"
#else
#define REQUIRED_VKD3D "vkd3d"
#endif
con::warn("Could not initialize shader compilation. Make sure " REQUIRED_VKD3D " is installed if you want to make use of it.");
#endif
}
@@ -207,6 +231,23 @@ namespace
return;
}
d3dCompile = reinterpret_cast<D3DCompile_t>(d3dCompileAddress);
compilationAvailable = true;
#else
const auto libvkd3dUtils = dlopen("libvkd3d-utils.so", RTLD_NOW);
if (!libvkd3dUtils)
{
PrintInitializationFailedMessage();
return;
}
const auto d3dCompileAddress = dlsym(libvkd3dUtils, "D3DCompile");
if (!d3dCompileAddress)
{
PrintInitializationFailedMessage();
return;
}
d3dCompile = reinterpret_cast<D3DCompile_t>(d3dCompileAddress);
compilationAvailable = true;
#endif