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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 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 GrPathRendererChain_DEFINED | 8 #ifndef GrPathRendererChain_DEFINED |
9 #define GrPathRendererChain_DEFINED | 9 #define GrPathRendererChain_DEFINED |
10 | 10 |
11 #include "SkRefCnt.h" | 11 #include "SkRefCnt.h" |
12 #include "SkTArray.h" | 12 #include "SkTArray.h" |
13 | 13 |
14 class GrContext; | 14 class GrContext; |
15 class GrDrawTarget; | |
16 class GrPathRenderer; | 15 class GrPathRenderer; |
17 class GrPipelineBuilder; | 16 class GrPipelineBuilder; |
| 17 class GrShaderCaps; |
18 class GrStrokeInfo; | 18 class GrStrokeInfo; |
19 class SkMatrix; | 19 class SkMatrix; |
20 class SkPath; | 20 class SkPath; |
21 | 21 |
22 /** | 22 /** |
23 * Keeps track of an ordered list of path renderers. When a path needs to be | 23 * Keeps track of an ordered list of path renderers. When a path needs to be |
24 * drawn this list is scanned to find the most preferred renderer. To add your | 24 * drawn this list is scanned to find the most preferred renderer. To add your |
25 * path renderer to the list implement the GrPathRenderer::AddPathRenderers | 25 * path renderer to the list implement the GrPathRenderer::AddPathRenderers |
26 * function. | 26 * function. |
27 */ | 27 */ |
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48 kColorAntiAlias_DrawType, // draw to color buffer, with partia
l coverage AA | 48 kColorAntiAlias_DrawType, // draw to color buffer, with partia
l coverage AA |
49 kStencilOnly_DrawType, // draw just to the stencil buffer | 49 kStencilOnly_DrawType, // draw just to the stencil buffer |
50 kStencilAndColor_DrawType, // draw the stencil and color buffer
, no AA | 50 kStencilAndColor_DrawType, // draw the stencil and color buffer
, no AA |
51 kStencilAndColorAntiAlias_DrawType // draw the stencil and color buffer
, with partial | 51 kStencilAndColorAntiAlias_DrawType // draw the stencil and color buffer
, with partial |
52 // coverage AA. | 52 // coverage AA. |
53 }; | 53 }; |
54 /** Returns a GrPathRenderer compatible with the request if one is available
. If the caller | 54 /** Returns a GrPathRenderer compatible with the request if one is available
. If the caller |
55 is drawing the path to the stencil buffer then stencilSupport can be use
d to determine | 55 is drawing the path to the stencil buffer then stencilSupport can be use
d to determine |
56 whether the path can be rendered with arbitrary stencil rules or not. Se
e comments on | 56 whether the path can be rendered with arbitrary stencil rules or not. Se
e comments on |
57 StencilSupport in GrPathRenderer.h. */ | 57 StencilSupport in GrPathRenderer.h. */ |
58 GrPathRenderer* getPathRenderer(const GrDrawTarget* target, | 58 GrPathRenderer* getPathRenderer(const GrShaderCaps* shaderCaps, |
59 const GrPipelineBuilder*, | 59 const GrPipelineBuilder*, |
60 const SkMatrix& viewMatrix, | 60 const SkMatrix& viewMatrix, |
61 const SkPath& path, | 61 const SkPath& path, |
62 const GrStrokeInfo& stroke, | 62 const GrStrokeInfo& stroke, |
63 DrawType drawType, | 63 DrawType drawType, |
64 StencilSupport* stencilSupport); | 64 StencilSupport* stencilSupport); |
65 | 65 |
66 private: | 66 private: |
67 GrPathRendererChain(); | 67 GrPathRendererChain(); |
68 | 68 |
69 void init(); | 69 void init(); |
70 | 70 |
71 enum { | 71 enum { |
72 kPreAllocCount = 8, | 72 kPreAllocCount = 8, |
73 }; | 73 }; |
74 bool fInit; | 74 bool fInit; |
75 GrContext* fOwner; | 75 GrContext* fOwner; |
76 SkSTArray<kPreAllocCount, GrPathRenderer*, true> fChain; | 76 SkSTArray<kPreAllocCount, GrPathRenderer*, true> fChain; |
77 | 77 |
78 typedef SkRefCnt INHERITED; | 78 typedef SkRefCnt INHERITED; |
79 }; | 79 }; |
80 | 80 |
81 #endif | 81 #endif |
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