1 2 /* 3 * Copyright 2007 The Android Open Source Project 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 9 10 #ifndef SkColorMatrix_DEFINED 11 #define SkColorMatrix_DEFINED 12 13 #include "SkScalar.h" 14 15 class SkColorMatrix { 16 public: 17 SkScalar fMat[20]; 18 19 void setIdentity(); 20 void setScale(SkScalar rScale, SkScalar gScale, SkScalar bScale, 21 SkScalar aScale = SK_Scalar1); 22 void preScale(SkScalar rScale, SkScalar gScale, SkScalar bScale, 23 SkScalar aScale = SK_Scalar1); 24 void postScale(SkScalar rScale, SkScalar gScale, SkScalar bScale, 25 SkScalar aScale = SK_Scalar1); 26 27 enum Axis { 28 kR_Axis = 0, 29 kG_Axis = 1, 30 kB_Axis = 2 31 }; 32 void setRotate(Axis, SkScalar degrees); 33 void setSinCos(Axis, SkScalar sine, SkScalar cosine); 34 void preRotate(Axis, SkScalar degrees); 35 void postRotate(Axis, SkScalar degrees); 36 37 void setConcat(const SkColorMatrix& a, const SkColorMatrix& b); 38 void preConcat(const SkColorMatrix& mat) { this->setConcat(*this, mat); } 39 void postConcat(const SkColorMatrix& mat) { this->setConcat(mat, *this); } 40 41 void setSaturation(SkScalar sat); 42 void setRGB2YUV(); 43 void setYUV2RGB(); 44 }; 45 46 #endif 47
