1 /* 2 * Copyright 2023 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 #ifndef skgpu_graphite_ReadSwizzle_DEFINED 9 #define skgpu_graphite_ReadSwizzle_DEFINED 10 11 #include "src/gpu/Swizzle.h" 12 #include "src/gpu/graphite/Log.h" 13 14 namespace skgpu::graphite { 15 /** 16 * Enumerate the few possible read and write swizzle options for smaller storage. 17 */ 18 enum class ReadSwizzle { 19 kRGBA, // Default 20 kRGB1, 21 kRRR1, 22 kBGRA, 23 k000R, 24 }; 25 SwizzleClassToReadEnum(const skgpu::Swizzle & swizzle)26inline skgpu::graphite::ReadSwizzle SwizzleClassToReadEnum(const skgpu::Swizzle& swizzle) { 27 if (swizzle == skgpu::Swizzle::RGBA()) { 28 return skgpu::graphite::ReadSwizzle::kRGBA; 29 } else if (swizzle == skgpu::Swizzle::RGB1()) { 30 return skgpu::graphite::ReadSwizzle::kRGB1; 31 } else if (swizzle == skgpu::Swizzle("rrr1")) { 32 return skgpu::graphite::ReadSwizzle::kRRR1; 33 } else if (swizzle == skgpu::Swizzle::BGRA()) { 34 return skgpu::graphite::ReadSwizzle::kBGRA; 35 } else if (swizzle == skgpu::Swizzle("000r")) { 36 return skgpu::graphite::ReadSwizzle::k000R; 37 } else { 38 SKGPU_LOG_W("%s is an unsupported read swizzle. Defaulting to RGBA.\n", 39 swizzle.asString().data()); 40 return skgpu::graphite::ReadSwizzle::kRGBA; 41 } 42 } 43 44 } // namespace skgpu::graphite 45 46 #endif // skgpu_graphite_ReadSwizzle_DEFINED 47