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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 GrBatch_DEFINED | 8 #ifndef GrBatch_DEFINED |
9 #define GrBatch_DEFINED | 9 #define GrBatch_DEFINED |
10 | 10 |
11 #include <new> | 11 #include <new> |
12 #include "GrNonAtomicRef.h" | 12 #include "GrNonAtomicRef.h" |
13 | 13 |
14 #include "SkRect.h" | 14 #include "SkRect.h" |
15 #include "SkString.h" | 15 #include "SkString.h" |
16 | 16 |
17 class GrCaps; | 17 class GrCaps; |
18 class GrBatchFlushState; | 18 class GrBatchFlushState; |
19 class GrRenderTarget; | |
20 | 19 |
21 /** | 20 /** |
22 * GrBatch is the base class for all Ganesh deferred geometry generators. To fa
cilitate | 21 * GrBatch is the base class for all Ganesh deferred geometry generators. To fa
cilitate |
23 * reorderable batching, Ganesh does not generate geometry inline with draw call
s. Instead, it | 22 * reorderable batching, Ganesh does not generate geometry inline with draw call
s. Instead, it |
24 * captures the arguments to the draw and then generates the geometry on demand.
This gives GrBatch | 23 * captures the arguments to the draw and then generates the geometry on demand.
This gives GrBatch |
25 * subclasses complete freedom to decide how / what they can batch. | 24 * subclasses complete freedom to decide how / what they can batch. |
26 * | 25 * |
27 * Batches are created when GrContext processes a draw call. Batches of the same
subclass may be | 26 * Batches are created when GrContext processes a draw call. Batches of the same
subclass may be |
28 * merged using combineIfPossible. When two batches merge, one takes on the unio
n of the data | 27 * merged using combineIfPossible. When two batches merge, one takes on the unio
n of the data |
29 * and the other is left empty. The merged batch becomes responsible for drawing
the data from both | 28 * and the other is left empty. The merged batch becomes responsible for drawing
the data from both |
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107 /** Issues the batches commands to GrGpu. */ | 106 /** Issues the batches commands to GrGpu. */ |
108 void draw(GrBatchFlushState* state) { this->onDraw(state); } | 107 void draw(GrBatchFlushState* state) { this->onDraw(state); } |
109 | 108 |
110 /** Used to block batching across render target changes. Remove this once we
store | 109 /** Used to block batching across render target changes. Remove this once we
store |
111 GrBatches for different RTs in different targets. */ | 110 GrBatches for different RTs in different targets. */ |
112 virtual uint32_t renderTargetUniqueID() const = 0; | 111 virtual uint32_t renderTargetUniqueID() const = 0; |
113 | 112 |
114 /** Used for spewing information about batches when debugging. */ | 113 /** Used for spewing information about batches when debugging. */ |
115 virtual SkString dumpInfo() const = 0; | 114 virtual SkString dumpInfo() const = 0; |
116 | 115 |
117 /** Can remove this when multi-draw-buffer lands */ | |
118 virtual GrRenderTarget* renderTarget() const = 0; | |
119 | |
120 protected: | 116 protected: |
121 // NOTE, compute some bounds, even if extremely conservative. Do *NOT* setL
argest on the bounds | 117 // NOTE, compute some bounds, even if extremely conservative. Do *NOT* setL
argest on the bounds |
122 // rect because we outset it for dst copy textures | 118 // rect because we outset it for dst copy textures |
123 void setBounds(const SkRect& newBounds) { fBounds = newBounds; } | 119 void setBounds(const SkRect& newBounds) { fBounds = newBounds; } |
124 | 120 |
125 void joinBounds(const SkRect& otherBounds) { | 121 void joinBounds(const SkRect& otherBounds) { |
126 return fBounds.joinPossiblyEmptyRect(otherBounds); | 122 return fBounds.joinPossiblyEmptyRect(otherBounds); |
127 } | 123 } |
128 | 124 |
129 static uint32_t GenBatchClassID() { return GenID(&gCurrBatchClassID); } | 125 static uint32_t GenBatchClassID() { return GenID(&gCurrBatchClassID); } |
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156 #if GR_BATCH_SPEW | 152 #if GR_BATCH_SPEW |
157 static uint32_t GenBatchID() { return GenID(&gCurrBatchUniqueID); } | 153 static uint32_t GenBatchID() { return GenID(&gCurrBatchUniqueID); } |
158 const uint32_t fUniqueID; | 154 const uint32_t fUniqueID; |
159 static int32_t gCurrBatchUniqueID; | 155 static int32_t gCurrBatchUniqueID; |
160 #endif | 156 #endif |
161 static int32_t gCurrBatchClassID; | 157 static int32_t gCurrBatchClassID; |
162 typedef GrNonAtomicRef INHERITED; | 158 typedef GrNonAtomicRef INHERITED; |
163 }; | 159 }; |
164 | 160 |
165 #endif | 161 #endif |
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