1 /* 2 * Copyright 2017 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 #ifndef SkPDFGradientShader_DEFINED 8 #define SkPDFGradientShader_DEFINED 9 10 #include "SkPDFTypes.h" 11 #include "SkPDFUtils.h" 12 #include "SkShader.h" 13 14 class SkMatrix; 15 class SkPDFDocument; 16 struct SkIRect; 17 18 namespace SkPDFGradientShader { 19 20 sk_sp<SkPDFObject> Make(SkPDFDocument* doc, 21 SkShader* shader, 22 const SkMatrix& matrix, 23 const SkIRect& surfaceBBox); 24 25 struct Key { 26 SkShader::GradientType fType; 27 SkShader::GradientInfo fInfo; 28 std::unique_ptr<SkColor[]> fColors; 29 std::unique_ptr<SkScalar[]> fStops; 30 SkMatrix fCanvasTransform; 31 SkMatrix fShaderTransform; 32 SkIRect fBBox; 33 uint32_t fHash; 34 }; 35 36 struct KeyHash { 37 uint32_t operator()(const Key& k) const { return k.fHash; } 38 }; 39 40 using HashMap = SkTHashMap<Key, sk_sp<SkPDFObject>, KeyHash>; 41 42 inline bool operator==(const SkShader::GradientInfo& u, const SkShader::GradientInfo& v) { 43 return u.fColorCount == v.fColorCount 44 && u.fPoint[0] == v.fPoint[0] 45 && u.fPoint[1] == v.fPoint[1] 46 && u.fRadius[0] == v.fRadius[0] 47 && u.fRadius[1] == v.fRadius[1] 48 && u.fTileMode == v.fTileMode 49 && u.fGradientFlags == v.fGradientFlags 50 && SkPackedArrayEqual(u.fColors, v.fColors, u.fColorCount) 51 && SkPackedArrayEqual(u.fColorOffsets, v.fColorOffsets, u.fColorCount); 52 } 53 54 inline bool operator==(const Key& u, const Key& v) { 55 SkASSERT(u.fInfo.fColors == u.fColors.get()); 56 SkASSERT(u.fInfo.fColorOffsets == u.fStops.get()); 57 SkASSERT(v.fInfo.fColors == v.fColors.get()); 58 SkASSERT(v.fInfo.fColorOffsets == v.fStops.get()); 59 return u.fType == v.fType 60 && u.fInfo == v.fInfo 61 && u.fCanvasTransform == v.fCanvasTransform 62 && u.fShaderTransform == v.fShaderTransform 63 && u.fBBox == v.fBBox; 64 } 65 inline bool operator!=(const Key& u, const Key& v) { return !(u == v); } 66 67 } // namespace SkPDFGradientShader 68 #endif // SkPDFGradientShader_DEFINED 69
