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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2011 Google Inc. | 3 * Copyright 2011 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 | 9 |
10 #ifndef SkPDFShader_DEFINED | 10 #ifndef SkPDFShader_DEFINED |
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38 * positioned, relative to where the page is drawn.) | 38 * positioned, relative to where the page is drawn.) |
39 * @param surfceBBox The bounding box of the drawing surface (with matrix | 39 * @param surfceBBox The bounding box of the drawing surface (with matrix |
40 * already applied). | 40 * already applied). |
41 * @param rasterScale Additional scale to be applied for early rasterizatio
n. | 41 * @param rasterScale Additional scale to be applied for early rasterizatio
n. |
42 */ | 42 */ |
43 static SkPDFObject* GetPDFShader(const SkShader& shader, | 43 static SkPDFObject* GetPDFShader(const SkShader& shader, |
44 const SkMatrix& matrix, | 44 const SkMatrix& matrix, |
45 const SkIRect& surfaceBBox, | 45 const SkIRect& surfaceBBox, |
46 SkScalar rasterScale); | 46 SkScalar rasterScale); |
47 | 47 |
| 48 class State; |
| 49 bool equals(const SkPDFShader::State&) const; |
| 50 |
48 protected: | 51 protected: |
49 class State; | 52 SkAutoTDelete<const State> fShaderState; |
50 | |
51 class ShaderCanonicalEntry { | |
52 public: | |
53 ShaderCanonicalEntry(SkPDFObject* pdfShader, const State* state); | |
54 bool operator==(const ShaderCanonicalEntry& b) const; | |
55 | |
56 SkPDFObject* fPDFShader; | |
57 const State* fState; | |
58 }; | |
59 // This should be made a hash table if performance is a problem. | |
60 static SkTDArray<ShaderCanonicalEntry>& CanonicalShaders(); | |
61 static SkBaseMutex& CanonicalShadersMutex(); | |
62 | 53 |
63 // This is an internal method. | 54 // This is an internal method. |
64 // CanonicalShadersMutex() should already be acquired. | 55 // CanonicalShadersMutex() should already be acquired. |
65 // This also takes ownership of shaderState. | 56 // This also takes ownership of shaderState. |
66 static SkPDFObject* GetPDFShaderByState(State* shaderState); | 57 static SkPDFObject* GetPDFShaderByState(State* shaderState); |
67 static void RemoveShader(SkPDFObject* shader); | 58 static SkPDFObject* AddToCanonIfValid(SkPDFShader*); |
| 59 static void RemoveFromCanonIfValid(SkPDFShader*); |
68 | 60 |
69 SkPDFShader(); | 61 SkPDFShader(State*); |
70 virtual ~SkPDFShader() {}; | 62 virtual ~SkPDFShader(); |
71 | 63 |
72 virtual bool isValid() = 0; | 64 virtual bool isValid() = 0; |
| 65 virtual SkPDFObject* toPDFObject() = 0; |
73 }; | 66 }; |
74 | 67 |
75 #endif | 68 #endif |
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