OLD | NEW |
1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 GrSWMaskHelper_DEFINED | 8 #ifndef GrSWMaskHelper_DEFINED |
9 #define GrSWMaskHelper_DEFINED | 9 #define GrSWMaskHelper_DEFINED |
10 | 10 |
11 #include "GrColor.h" | 11 #include "GrColor.h" |
12 #include "GrDrawState.h" | 12 #include "GrDrawState.h" |
13 #include "SkBitmap.h" | 13 #include "SkBitmap.h" |
14 #include "SkDraw.h" | 14 #include "SkDraw.h" |
15 #include "SkMatrix.h" | 15 #include "SkMatrix.h" |
16 #include "SkRasterClip.h" | 16 #include "SkRasterClip.h" |
17 #include "SkRegion.h" | 17 #include "SkRegion.h" |
18 #include "SkTextureCompressor.h" | 18 #include "SkTextureCompressor.h" |
19 #include "SkTypes.h" | 19 #include "SkTypes.h" |
20 | 20 |
21 class GrAutoScratchTexture; | |
22 class GrContext; | 21 class GrContext; |
23 class GrTexture; | 22 class GrTexture; |
24 class SkPath; | 23 class SkPath; |
25 class SkStrokeRec; | 24 class SkStrokeRec; |
26 class GrDrawTarget; | 25 class GrDrawTarget; |
27 | 26 |
28 /** | 27 /** |
29 * The GrSWMaskHelper helps generate clip masks using the software rendering | 28 * The GrSWMaskHelper helps generate clip masks using the software rendering |
30 * path. It is intended to be used as: | 29 * path. It is intended to be used as: |
31 * | 30 * |
(...skipping 22 matching lines...) Expand all Loading... |
54 bool init(const SkIRect& resultBounds, const SkMatrix* matrix, bool allowCom
pression = true); | 53 bool init(const SkIRect& resultBounds, const SkMatrix* matrix, bool allowCom
pression = true); |
55 | 54 |
56 // Draw a single rect into the accumulation bitmap using the specified op | 55 // Draw a single rect into the accumulation bitmap using the specified op |
57 void draw(const SkRect& rect, SkRegion::Op op, | 56 void draw(const SkRect& rect, SkRegion::Op op, |
58 bool antiAlias, uint8_t alpha); | 57 bool antiAlias, uint8_t alpha); |
59 | 58 |
60 // Draw a single path into the accumuation bitmap using the specified op | 59 // Draw a single path into the accumuation bitmap using the specified op |
61 void draw(const SkPath& path, const SkStrokeRec& stroke, SkRegion::Op op, | 60 void draw(const SkPath& path, const SkStrokeRec& stroke, SkRegion::Op op, |
62 bool antiAlias, uint8_t alpha); | 61 bool antiAlias, uint8_t alpha); |
63 | 62 |
64 // Helper function to get a scratch texture suitable for capturing the | |
65 // result (i.e., right size & format) | |
66 bool getTexture(GrAutoScratchTexture* texture); | |
67 | |
68 // Move the mask generation results from the internal bitmap to the gpu. | 63 // Move the mask generation results from the internal bitmap to the gpu. |
69 void toTexture(GrTexture* texture); | 64 void toTexture(GrTexture* texture); |
70 | 65 |
71 // Convert mask generation results to a signed distance field | 66 // Convert mask generation results to a signed distance field |
72 void toSDF(unsigned char* sdf); | 67 void toSDF(unsigned char* sdf); |
73 | 68 |
74 // Reset the internal bitmap | 69 // Reset the internal bitmap |
75 void clear(uint8_t alpha) { | 70 void clear(uint8_t alpha) { |
76 fBM.eraseColor(SkColorSetARGB(alpha, alpha, alpha, alpha)); | 71 fBM.eraseColor(SkColorSetARGB(alpha, alpha, alpha, alpha)); |
77 } | 72 } |
(...skipping 15 matching lines...) Expand all Loading... |
93 // accommodate the mask. | 88 // accommodate the mask. |
94 // Note that this method assumes that the GrPaint::kTotalStages slot in | 89 // Note that this method assumes that the GrPaint::kTotalStages slot in |
95 // the draw state can be used to hold the mask texture stage. | 90 // the draw state can be used to hold the mask texture stage. |
96 // This method is really only intended to be used with the | 91 // This method is really only intended to be used with the |
97 // output of DrawPathMaskToTexture. | 92 // output of DrawPathMaskToTexture. |
98 static void DrawToTargetWithPathMask(GrTexture* texture, | 93 static void DrawToTargetWithPathMask(GrTexture* texture, |
99 GrDrawTarget* target, | 94 GrDrawTarget* target, |
100 const SkIRect& rect); | 95 const SkIRect& rect); |
101 | 96 |
102 private: | 97 private: |
| 98 // Helper function to get a scratch texture suitable for capturing the |
| 99 // result (i.e., right size & format) |
| 100 GrTexture* createTexture(); |
| 101 |
103 GrContext* fContext; | 102 GrContext* fContext; |
104 SkMatrix fMatrix; | 103 SkMatrix fMatrix; |
105 SkBitmap fBM; | 104 SkBitmap fBM; |
106 SkDraw fDraw; | 105 SkDraw fDraw; |
107 SkRasterClip fRasterClip; | 106 SkRasterClip fRasterClip; |
108 | 107 |
109 // This enum says whether or not we should compress the mask: | 108 // This enum says whether or not we should compress the mask: |
110 // kNone_CompressionMode: compression is not supported on this device. | 109 // kNone_CompressionMode: compression is not supported on this device. |
111 // kCompress_CompressionMode: compress the bitmap before it gets sent to the
gpu | 110 // kCompress_CompressionMode: compress the bitmap before it gets sent to the
gpu |
112 // kBlitter_CompressionMode: write to the bitmap using a special compressed
blitter. | 111 // kBlitter_CompressionMode: write to the bitmap using a special compressed
blitter. |
(...skipping 17 matching lines...) Expand all Loading... |
130 const void *data, int rowbytes); | 129 const void *data, int rowbytes); |
131 | 130 |
132 // Compresses the bitmap stored in fBM and sends the compressed data | 131 // Compresses the bitmap stored in fBM and sends the compressed data |
133 // to the GPU to be stored in 'texture' using sendTextureData. | 132 // to the GPU to be stored in 'texture' using sendTextureData. |
134 void compressTextureData(GrTexture *texture, const GrTextureDesc& desc); | 133 void compressTextureData(GrTexture *texture, const GrTextureDesc& desc); |
135 | 134 |
136 typedef SkNoncopyable INHERITED; | 135 typedef SkNoncopyable INHERITED; |
137 }; | 136 }; |
138 | 137 |
139 #endif // GrSWMaskHelper_DEFINED | 138 #endif // GrSWMaskHelper_DEFINED |
OLD | NEW |