1 /* 2 * Copyright 2019 Google Inc. 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 #ifndef GrDawnUtil_DEFINED 9 #define GrDawnUtil_DEFINED 10 11 #include "include/private/GrTypesPriv.h" 12 #include "dawn/webgpu_cpp.h" 13 14 size_t GrDawnBytesPerBlock(wgpu::TextureFormat format); 15 int GrDawnFormatStencilBits(wgpu::TextureFormat format); 16 bool GrDawnFormatIsRenderable(wgpu::TextureFormat format); 17 bool GrColorTypeToDawnFormat(GrColorType colorType, wgpu::TextureFormat* format); 18 bool GrDawnFormatToGrColorType(wgpu::TextureFormat format, GrColorType* colorType); 19 size_t GrDawnRoundRowBytes(size_t rowBytes); 20 #if defined(SK_DEBUG) || GR_TEST_UTILS 21 const char* GrDawnFormatToStr(wgpu::TextureFormat format); 22 #endif 23 GrDawnFormatChannels(wgpu::TextureFormat format)24static constexpr uint32_t GrDawnFormatChannels(wgpu::TextureFormat format) { 25 switch (format) { 26 case wgpu::TextureFormat::RGBA8Unorm: return kRGBA_SkColorChannelFlags; 27 case wgpu::TextureFormat::BGRA8Unorm: return kRGBA_SkColorChannelFlags; 28 case wgpu::TextureFormat::R8Unorm: return kRed_SkColorChannelFlag; 29 30 default: return 0; 31 } 32 } 33 GrDawnFormatDesc(wgpu::TextureFormat format)34static constexpr GrColorFormatDesc GrDawnFormatDesc(wgpu::TextureFormat format) { 35 switch (format) { 36 case wgpu::TextureFormat::RGBA8Unorm: 37 return GrColorFormatDesc::MakeRGBA(8, GrColorTypeEncoding::kUnorm); 38 case wgpu::TextureFormat::BGRA8Unorm: 39 return GrColorFormatDesc::MakeRGBA(8, GrColorTypeEncoding::kUnorm); 40 case wgpu::TextureFormat::R8Unorm: 41 return GrColorFormatDesc::MakeR(8, GrColorTypeEncoding::kUnorm); 42 43 default: 44 return GrColorFormatDesc::MakeInvalid(); 45 } 46 } 47 48 #endif // GrDawnUtil_DEFINED 49