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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 GrInOrderDrawBuffer_DEFINED | 8 #ifndef GrInOrderDrawBuffer_DEFINED |
9 #define GrInOrderDrawBuffer_DEFINED | 9 #define GrInOrderDrawBuffer_DEFINED |
10 | 10 |
11 #include "GrFlushToGpuDrawTarget.h" | 11 #include "GrDrawTarget.h" |
12 #include "GrTargetCommands.h" | 12 #include "GrTargetCommands.h" |
13 #include "SkChunkAlloc.h" | 13 #include "SkChunkAlloc.h" |
14 | 14 |
15 /** | 15 /** |
16 * GrInOrderDrawBuffer is an implementation of GrDrawTarget that queues up draws
for eventual | 16 * GrInOrderDrawBuffer is an implementation of GrDrawTarget that queues up draws
for eventual |
17 * playback into a GrGpu. In theory one draw buffer could playback into another.
When index or | 17 * playback into a GrGpu. In theory one draw buffer could playback into another.
When index or |
18 * vertex buffers are used as geometry sources it is the callers the draw buffer
only holds | 18 * vertex buffers are used as geometry sources it is the callers the draw buffer
only holds |
19 * references to the buffers. It is the callers responsibility to ensure that th
e data is still | 19 * references to the buffers. It is the callers responsibility to ensure that th
e data is still |
20 * valid when the draw buffer is played back into a GrGpu. Similarly, it is the
caller's | 20 * valid when the draw buffer is played back into a GrGpu. Similarly, it is the
caller's |
21 * responsibility to ensure that all referenced textures, buffers, and render-ta
rgets are associated | 21 * responsibility to ensure that all referenced textures, buffers, and render-ta
rgets are associated |
22 * in the GrGpu object that the buffer is played back into. The buffer requires
VB and IB pools to | 22 * in the GrGpu object that the buffer is played back into. The buffer requires
VB and IB pools to |
23 * store geometry. | 23 * store geometry. |
24 */ | 24 */ |
25 class GrInOrderDrawBuffer : public GrFlushToGpuDrawTarget { | 25 class GrInOrderDrawBuffer : public GrClipTarget { |
26 public: | 26 public: |
27 | 27 |
28 /** | 28 /** |
29 * Creates a GrInOrderDrawBuffer | 29 * Creates a GrInOrderDrawBuffer |
30 * | 30 * |
31 * @param gpu the gpu object that this draw buffer flushes to. | 31 * @param context the context object that owns this draw buffer. |
32 * @param vertexPool pool where vertices for queued draws will be saved when | 32 * @param vertexPool pool where vertices for queued draws will be saved when |
33 * the vertex source is either reserved or array. | 33 * the vertex source is either reserved or array. |
34 * @param indexPool pool where indices for queued draws will be saved when | 34 * @param indexPool pool where indices for queued draws will be saved when |
35 * the index source is either reserved or array. | 35 * the index source is either reserved or array. |
36 */ | 36 */ |
37 GrInOrderDrawBuffer(GrGpu* gpu, | 37 GrInOrderDrawBuffer(GrContext* context, |
38 GrVertexBufferAllocPool* vertexPool, | 38 GrVertexBufferAllocPool* vertexPool, |
39 GrIndexBufferAllocPool* indexPool); | 39 GrIndexBufferAllocPool* indexPool); |
40 | 40 |
41 ~GrInOrderDrawBuffer() override; | 41 ~GrInOrderDrawBuffer() override; |
42 | 42 |
43 // tracking for draws | 43 // tracking for draws |
44 DrawToken getCurrentDrawToken() override { return DrawToken(this, fDrawID);
} | 44 DrawToken getCurrentDrawToken() override { return DrawToken(this, fDrawID);
} |
45 | 45 |
46 void clearStencilClip(const SkIRect& rect, | 46 void clearStencilClip(const SkIRect& rect, |
47 bool insideClip, | 47 bool insideClip, |
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100 PathIndexType, | 100 PathIndexType, |
101 const float transformValues[], | 101 const float transformValues[], |
102 PathTransformType, | 102 PathTransformType, |
103 int count, | 103 int count, |
104 const GrStencilSettings&, | 104 const GrStencilSettings&, |
105 const PipelineInfo&) override; | 105 const PipelineInfo&) override; |
106 void onClear(const SkIRect* rect, | 106 void onClear(const SkIRect* rect, |
107 GrColor color, | 107 GrColor color, |
108 bool canIgnoreRect, | 108 bool canIgnoreRect, |
109 GrRenderTarget* renderTarget) override; | 109 GrRenderTarget* renderTarget) override; |
110 bool onCopySurface(GrSurface* dst, | 110 void onCopySurface(GrSurface* dst, |
111 GrSurface* src, | 111 GrSurface* src, |
112 const SkIRect& srcRect, | 112 const SkIRect& srcRect, |
113 const SkIPoint& dstPoint) override; | 113 const SkIPoint& dstPoint) override; |
114 | 114 |
115 // We lazily record clip changes in order to skip clips that have no effect. | 115 // We lazily record clip changes in order to skip clips that have no effect. |
116 void recordClipIfNecessary(); | 116 void recordClipIfNecessary(); |
117 // Records any trace markers for a command | 117 // Records any trace markers for a command |
118 void recordTraceMarkersIfNecessary(GrTargetCommands::Cmd*); | 118 void recordTraceMarkersIfNecessary(GrTargetCommands::Cmd*); |
119 SkString getCmdString(int index) const { | 119 SkString getCmdString(int index) const { |
120 SkASSERT(index < fGpuCmdMarkers.count()); | 120 SkASSERT(index < fGpuCmdMarkers.count()); |
121 return fGpuCmdMarkers[index].toString(); | 121 return fGpuCmdMarkers[index].toString(); |
122 } | 122 } |
123 bool isIssued(uint32_t drawID) override { return drawID != fDrawID; } | 123 bool isIssued(uint32_t drawID) override { return drawID != fDrawID; } |
124 | 124 |
125 // TODO: Use a single allocator for commands and records | 125 // TODO: Use a single allocator for commands and records |
126 enum { | 126 enum { |
127 kPathIdxBufferMinReserve = 2 * 64, // 64 uint16_t's | 127 kPathIdxBufferMinReserve = 2 * 64, // 64 uint16_t's |
128 kPathXformBufferMinReserve = 2 * 64, // 64 two-float transforms | 128 kPathXformBufferMinReserve = 2 * 64, // 64 two-float transforms |
129 }; | 129 }; |
130 | 130 |
131 GrTargetCommands fCommands; | 131 GrTargetCommands fCommands; |
132 SkTArray<GrTraceMarkerSet, false> fGpuCmdMarkers; | 132 SkTArray<GrTraceMarkerSet, false> fGpuCmdMarkers; |
133 SkChunkAlloc fPathIndexBuffer; | 133 SkChunkAlloc fPathIndexBuffer; |
134 SkChunkAlloc fPathTransformBuffer; | 134 SkChunkAlloc fPathTransformBuffer; |
135 uint32_t fDrawID; | 135 uint32_t fDrawID; |
136 | 136 |
137 typedef GrFlushToGpuDrawTarget INHERITED; | 137 typedef GrClipTarget INHERITED; |
138 }; | 138 }; |
139 | 139 |
140 #endif | 140 #endif |
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