1 /* 2 * Copyright 2020 Google LLC 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "src/sksl/codegen/SkSLSPIRVtoHLSL.h" 9 10 #if defined(SK_DIRECT3D) 11 12 #include "third_party/externals/spirv-cross/spirv_hlsl.hpp" 13 14 /* 15 * This translation unit serves as a bridge between Skia/SkSL and SPIRV-Cross. 16 * Each library is built with a separate copy of spirv.h (or spirv.hpp), so we 17 * avoid conflicts by never including both in the same cpp. 18 */ 19 20 namespace SkSL { 21 SPIRVtoHLSL(const String & spirv,String * hlsl)22bool SPIRVtoHLSL(const String& spirv, String* hlsl) { 23 spirv_cross::CompilerHLSL hlslCompiler((const uint32_t*)spirv.c_str(), 24 spirv.size() / sizeof(uint32_t)); 25 26 spirv_cross::CompilerGLSL::Options optionsGLSL; 27 // Force all uninitialized variables to be 0, otherwise they will fail to compile 28 // by FXC. 29 optionsGLSL.force_zero_initialized_variables = true; 30 31 spirv_cross::CompilerHLSL::Options optionsHLSL; 32 optionsHLSL.shader_model = 51; 33 // PointCoord and PointSize are not supported in HLSL 34 optionsHLSL.point_coord_compat = true; 35 optionsHLSL.point_size_compat = true; 36 37 hlslCompiler.set_common_options(optionsGLSL); 38 hlslCompiler.set_hlsl_options(optionsHLSL); 39 hlsl->assign(hlslCompiler.compile()); 40 return true; 41 } 42 43 } 44 45 #else 46 SPIRVtoHLSL(const String &,String *)47namespace SkSL { bool SPIRVtoHLSL(const String&, String*) { return false; } } 48 49 #endif 50