94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
#if !RESOURCE_RELOADING
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DXC_Result dxc_compile(Arena *arena, String shader_source, i32 num_args, String *args)
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{
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(UNUSED)arena;
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(UNUSED)shader_source;
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(UNUSED)num_args;
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(UNUSED)args;
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DXC_Result res = ZI;
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return res;
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}
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#else
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#if COMPILER_CLANG
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# pragma clang diagnostic ignored "-Wlanguage-extension-token"
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#endif
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#define _ALLOW_RTCc_IN_STL
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#pragma warning(push, 0)
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# define WIN32_LEAN_AND_MEAN
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# define UNICODE
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# include <Windows.h>
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# include <atlbase.h>
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# include <dxcapi.h>
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# include <d3d12shader.h>
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#pragma warning(pop)
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#pragma comment(lib, "d3dcompiler")
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#pragma comment(lib, "dxcompiler")
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/* https://github.com/microsoft/DirectXShaderCompiler/wiki/Using-dxc.exe-and-dxcompiler.dll */
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DXC_Result dxc_compile(Arena *arena, String shader_source, i32 num_args, String *args)
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{
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__prof;
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TempArena scratch = BeginScratch(arena);
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DXC_Result res = ZI;
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wchar_t **wstr_args = PushArray(scratch.arena, wchar_t *, num_args);
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for (i32 i = 0; i < num_args; ++i) {
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wstr_args[i] = wstr_from_string(scratch.arena, args[i]);
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}
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DxcBuffer dxc_src_buffer = ZI;
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dxc_src_buffer.Ptr = shader_source.text;
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dxc_src_buffer.Size = shader_source.len;
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dxc_src_buffer.Encoding = DXC_CP_UTF8;
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/* Init compiler */
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CComPtr<IDxcUtils> dxc_utils;
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CComPtr<IDxcCompiler3> dxc_compiler;
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CComPtr<IDxcIncludeHandler> dxc_include_handler;
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DxcCreateInstance(CLSID_DxcUtils, IID_PPV_ARGS(&dxc_utils));
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DxcCreateInstance(CLSID_DxcCompiler, IID_PPV_ARGS(&dxc_compiler));
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dxc_utils->CreateDefaultIncludeHandler(&dxc_include_handler);
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/* Compile */
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CComPtr<IDxcResult> compile_results = 0;
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dxc_compiler->Compile(&dxc_src_buffer, (LPCWSTR *)wstr_args, (u32)num_args, dxc_include_handler, IID_PPV_ARGS(&compile_results));
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/* Copy errors */
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CComPtr<IDxcBlobUtf8> dxc_errors = 0;
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compile_results->GetOutput(DXC_OUT_ERRORS, IID_PPV_ARGS(&dxc_errors), 0);
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if (dxc_errors != 0) {
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String blob_str = ZI;
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blob_str.len = dxc_errors->GetBufferSize();
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blob_str.text = (u8 *)dxc_errors->GetBufferPointer();
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res.errors = string_copy(arena, blob_str);
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}
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/* Get status */
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HRESULT dxc_hr = 0;
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compile_results->GetStatus(&dxc_hr);
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res.success = SUCCEEDED(dxc_hr);
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/* Copy shader output */
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if (res.success) {
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CComPtr<IDxcBlob> dxc_shader = 0;
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compile_results->GetOutput(DXC_OUT_OBJECT, IID_PPV_ARGS(&dxc_shader), 0);
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if (dxc_shader != 0) {
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String blob_str = ZI;
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blob_str.len = dxc_shader->GetBufferSize();
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blob_str.text = (u8 *)dxc_shader->GetBufferPointer();
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res.dxc = string_copy(arena, blob_str);
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}
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}
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EndScratch(scratch);
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return res;
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}
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#endif
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