1 /* 2 * Copyright 2007 The Android Open Source Project 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 SkColorMatrixFilter_DEFINED 9 #define SkColorMatrixFilter_DEFINED 10 11 #include "SkColorFilter.h" 12 #include "SkColorMatrix.h" 13 14 class SK_API SkColorMatrixFilter : public SkColorFilter { 15 public: 16 static SkColorMatrixFilter* Create(const SkColorMatrix& cm) { 17 return SkNEW_ARGS(SkColorMatrixFilter, (cm)); 18 } 19 static SkColorMatrixFilter* Create(const SkScalar array[20]) { 20 return SkNEW_ARGS(SkColorMatrixFilter, (array)); 21 } 22 23 // overrides from SkColorFilter 24 virtual void filterSpan(const SkPMColor src[], int count, SkPMColor[]) const SK_OVERRIDE; 25 virtual void filterSpan16(const uint16_t src[], int count, uint16_t[]) const SK_OVERRIDE; 26 virtual uint32_t getFlags() const SK_OVERRIDE; 27 virtual bool asColorMatrix(SkScalar matrix[20]) const SK_OVERRIDE; 28 #if SK_SUPPORT_GPU 29 virtual GrEffectRef* asNewEffect(GrContext*) const SK_OVERRIDE; 30 #endif 31 32 struct State { 33 int32_t fArray[20]; 34 int fShift; 35 }; 36 37 SK_TO_STRING_OVERRIDE() 38 39 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkColorMatrixFilter) 40 41 protected: 42 explicit SkColorMatrixFilter(const SkColorMatrix&); 43 explicit SkColorMatrixFilter(const SkScalar array[20]); 44 explicit SkColorMatrixFilter(SkReadBuffer& buffer); 45 virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; 46 47 private: 48 SkColorMatrix fMatrix; 49 50 typedef void (*Proc)(const State&, unsigned r, unsigned g, unsigned b, 51 unsigned a, int32_t result[4]); 52 53 Proc fProc; 54 State fState; 55 uint32_t fFlags; 56 57 void initState(const SkScalar array[20]); 58 59 typedef SkColorFilter INHERITED; 60 }; 61 62 #endif 63
