1 /* 2 * Copyright 2018 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 SkColorSpaceXformSteps_DEFINED 9 #define SkColorSpaceXformSteps_DEFINED 10 11 #include "SkColorSpace.h" 12 #include "SkImageInfo.h" 13 14 class SkRasterPipeline; 15 16 struct SkColorSpaceXformSteps { 17 struct Flags { 18 bool unpremul = false; 19 bool linearize = false; 20 bool gamut_transform = false; 21 bool encode = false; 22 bool premul = false; 23 24 uint32_t mask() const { 25 return (unpremul ? 1 : 0) 26 | (linearize ? 2 : 0) 27 | (gamut_transform ? 4 : 0) 28 | (encode ? 8 : 0) 29 | (premul ? 16 : 0); 30 } 31 }; 32 33 SkColorSpaceXformSteps(SkColorSpace* src, SkAlphaType srcAT, 34 SkColorSpace* dst, SkAlphaType dstAT); 35 36 void apply(float rgba[4]) const; 37 void apply(SkRasterPipeline*, bool src_is_normalized) const; 38 39 void apply(SkRasterPipeline* p, SkColorType srcCT) const { 40 #if 0 41 this->apply(p, srcCT < kRGBA_F16_SkColorType); 42 #else 43 // F16Norm is normalized, but to make diffing with F16 easier we 44 // intentionally take the slower, non-normalized path here. 45 this->apply(p, srcCT < kRGBA_F16Norm_SkColorType); 46 #endif 47 } 48 49 Flags flags; 50 51 bool srcTF_is_sRGB, 52 dstTF_is_sRGB; 53 skcms_TransferFunction srcTF, // Apply for linearize. 54 dstTFInv; // Apply for encode. 55 float src_to_dst_matrix[9]; // Apply this 3x3 column-major matrix for gamut_transform. 56 }; 57 58 #endif//SkColorSpaceXformSteps_DEFINED 59
