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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrPictureUtils_DEFINED | 8 #ifndef GrPictureUtils_DEFINED |
9 #define GrPictureUtils_DEFINED | 9 #define GrPictureUtils_DEFINED |
10 | 10 |
11 #include "SkPicture.h" | 11 #include "SkPicture.h" |
12 #include "SkTDArray.h" | 12 #include "SkTDArray.h" |
13 | 13 |
14 // This class encapsulates the GPU-backend-specific acceleration data | 14 // This class encapsulates the GPU-backend-specific acceleration data |
15 // for a single SkPicture | 15 // for a single SkPicture |
16 class GPUAccelData : public SkPicture::AccelData { | 16 class GrAccelData : public SkPicture::AccelData { |
17 public: | 17 public: |
18 // Information about a given saveLayer in an SkPicture | 18 // Information about a given saveLayer in an SkPicture |
19 struct SaveLayerInfo { | 19 struct SaveLayerInfo { |
20 // True if the SaveLayerInfo is valid. False if either 'fOffset' is | 20 // True if the SaveLayerInfo is valid. False if either 'fOffset' is |
21 // invalid (due to a non-invertible CTM) or 'fPaint' is NULL (due | 21 // invalid (due to a non-invertible CTM) or 'fPaint' is NULL (due |
22 // to a non-copyable paint). | 22 // to a non-copyable paint). |
23 bool fValid; | 23 bool fValid; |
24 // The size of the saveLayer | 24 // The size of the saveLayer |
25 SkISize fSize; | 25 SkISize fSize; |
26 // The CTM in which this layer's draws must occur. It already incorporat
es | 26 // The CTM in which this layer's draws must occur. It already incorporat
es |
27 // the translation needed to map the layer's top-left point to the origi
n. | 27 // the translation needed to map the layer's top-left point to the origi
n. |
28 SkMatrix fCTM; | 28 SkMatrix fCTM; |
29 // The offset that needs to be passed to drawBitmap to correctly | 29 // The offset that needs to be passed to drawBitmap to correctly |
30 // position the pre-rendered layer. It is in device space. | 30 // position the pre-rendered layer. It is in device space. |
31 SkIPoint fOffset; | 31 SkIPoint fOffset; |
32 // The paint to use on restore. NULL if the paint was not copyable (and | 32 // The paint to use on restore. NULL if the paint was not copyable (and |
33 // thus that this layer should not be pulled forward). | 33 // thus that this layer should not be pulled forward). |
34 const SkPaint* fPaint; | 34 const SkPaint* fPaint; |
35 // The ID of this saveLayer in the picture. 0 is an invalid ID. | 35 // The ID of this saveLayer in the picture. 0 is an invalid ID. |
36 size_t fSaveLayerOpID; | 36 size_t fSaveLayerOpID; |
37 // The ID of the matching restore in the picture. 0 is an invalid ID. | 37 // The ID of the matching restore in the picture. 0 is an invalid ID. |
38 size_t fRestoreOpID; | 38 size_t fRestoreOpID; |
39 // True if this saveLayer has at least one other saveLayer nested within
it. | 39 // True if this saveLayer has at least one other saveLayer nested within
it. |
40 // False otherwise. | 40 // False otherwise. |
41 bool fHasNestedLayers; | 41 bool fHasNestedLayers; |
42 // True if this saveLayer is nested within another. False otherwise. | 42 // True if this saveLayer is nested within another. False otherwise. |
43 bool fIsNested; | 43 bool fIsNested; |
44 }; | 44 }; |
45 | 45 |
46 GPUAccelData(Key key) : INHERITED(key) { } | 46 GrAccelData(Key key) : INHERITED(key) { } |
47 | 47 |
48 virtual ~GPUAccelData() { | 48 virtual ~GrAccelData() { |
49 for (int i = 0; i < fSaveLayerInfo.count(); ++i) { | 49 for (int i = 0; i < fSaveLayerInfo.count(); ++i) { |
50 SkDELETE(fSaveLayerInfo[i].fPaint); | 50 SkDELETE(fSaveLayerInfo[i].fPaint); |
51 } | 51 } |
52 } | 52 } |
53 | 53 |
54 void addSaveLayerInfo(const SaveLayerInfo& info) { | 54 void addSaveLayerInfo(const SaveLayerInfo& info) { |
55 SkASSERT(info.fSaveLayerOpID < info.fRestoreOpID); | 55 SkASSERT(info.fSaveLayerOpID < info.fRestoreOpID); |
56 *fSaveLayerInfo.push() = info; | 56 *fSaveLayerInfo.push() = info; |
57 } | 57 } |
58 | 58 |
59 int numSaveLayers() const { return fSaveLayerInfo.count(); } | 59 int numSaveLayers() const { return fSaveLayerInfo.count(); } |
60 | 60 |
61 const SaveLayerInfo& saveLayerInfo(int index) const { | 61 const SaveLayerInfo& saveLayerInfo(int index) const { |
62 SkASSERT(index < fSaveLayerInfo.count()); | 62 SkASSERT(index < fSaveLayerInfo.count()); |
63 | 63 |
64 return fSaveLayerInfo[index]; | 64 return fSaveLayerInfo[index]; |
65 } | 65 } |
66 | 66 |
67 // We may, in the future, need to pass in the GPUDevice in order to | 67 // We may, in the future, need to pass in the GPUDevice in order to |
68 // incorporate the clip and matrix state into the key | 68 // incorporate the clip and matrix state into the key |
69 static SkPicture::AccelData::Key ComputeAccelDataKey(); | 69 static SkPicture::AccelData::Key ComputeAccelDataKey(); |
70 | 70 |
71 private: | 71 private: |
72 SkTDArray<SaveLayerInfo> fSaveLayerInfo; | 72 SkTDArray<SaveLayerInfo> fSaveLayerInfo; |
73 | 73 |
74 typedef SkPicture::AccelData INHERITED; | 74 typedef SkPicture::AccelData INHERITED; |
75 }; | 75 }; |
76 | 76 |
77 void GatherGPUInfo(const SkPicture* pict, GPUAccelData* accelData); | 77 void GatherGPUInfo(const SkPicture* pict, GrAccelData* accelData); |
78 | 78 |
79 #endif // GrPictureUtils_DEFINED | 79 #endif // GrPictureUtils_DEFINED |
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