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1 /* | |
2 * Copyright 2015 Google Inc. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license that can be | |
5 * found in the LICENSE file. | |
6 */ | |
7 | |
8 #ifndef GrBatchBuffer_DEFINED | |
9 #define GrBatchBuffer_DEFINED | |
10 | |
11 #include "GrPendingProgramElement.h" | |
12 #include "GrGpu.h" | |
13 #include "GrTRecorder.h" | |
14 | |
15 /* | |
16 * GrBatch instances use this object to allocate space for their geometry and to
issue the draws | |
17 * that render their batch. | |
18 */ | |
19 | |
20 class GrBatchTarget : public SkNoncopyable { | |
21 public: | |
22 GrBatchTarget(GrGpu* gpu, | |
23 GrVertexBufferAllocPool* vpool, | |
24 GrIndexBufferAllocPool* ipool) | |
25 : fGpu(gpu) | |
26 , fVertexPool(vpool) | |
27 , fIndexPool(ipool) | |
28 , fFlushBuffer(kFlushBufferInitialSizeInBytes) | |
29 , fIter(fFlushBuffer) {} | |
30 | |
31 typedef GrDrawTarget::DrawInfo DrawInfo; | |
32 void initDraw(const GrPrimitiveProcessor* primProc, const GrPipeline* pipeli
ne) { | |
33 GrNEW_APPEND_TO_RECORDER(fFlushBuffer, BufferedFlush, (primProc, pipelin
e)); | |
34 } | |
35 | |
36 void draw(const GrDrawTarget::DrawInfo& draw) { | |
37 fFlushBuffer.back().fDraws.push_back(draw); | |
38 } | |
39 | |
40 // TODO this is temporary until batch is everywhere | |
41 //void flush(); | |
42 void preFlush() { fIter = FlushBuffer::Iter(fFlushBuffer); } | |
43 void flushNext(); | |
44 void postFlush() { fFlushBuffer.reset(); } | |
45 | |
46 // TODO This goes away when everything uses batch | |
47 GrBatchTracker* currentBatchTracker() { | |
48 SkASSERT(!fFlushBuffer.empty()); | |
49 return &fFlushBuffer.back().fBatchTracker; | |
50 } | |
51 | |
52 GrVertexBufferAllocPool* vertexPool() { return fVertexPool; } | |
53 GrIndexBufferAllocPool* indexPool() { return fIndexPool; } | |
54 | |
55 private: | |
56 GrGpu* fGpu; | |
57 GrVertexBufferAllocPool* fVertexPool; | |
58 GrIndexBufferAllocPool* fIndexPool; | |
59 | |
60 typedef void* TBufferAlign; // This wouldn't be enough align if a command us
ed long double. | |
61 | |
62 struct BufferedFlush { | |
63 BufferedFlush(const GrPrimitiveProcessor* primProc, const GrPipeline* pi
peline) | |
64 : fPrimitiveProcessor(primProc) | |
65 , fPipeline(pipeline) | |
66 , fDraws(kDrawRecorderInitialSizeInBytes) {} | |
67 typedef GrPendingProgramElement<const GrPrimitiveProcessor> ProgramPrimi
tiveProcessor; | |
68 ProgramPrimitiveProcessor fPrimitiveProcessor; | |
69 const GrPipeline* fPipeline; | |
70 GrBatchTracker fBatchTracker; | |
71 SkSTArray<4, DrawInfo, true> fDraws; | |
72 }; | |
73 | |
74 enum { | |
75 kFlushBufferInitialSizeInBytes = 8 * sizeof(BufferedFlush), | |
76 kDrawRecorderInitialSizeInBytes = 8 * sizeof(DrawInfo), | |
77 }; | |
78 | |
79 typedef GrTRecorder<BufferedFlush, TBufferAlign> FlushBuffer; | |
80 | |
81 FlushBuffer fFlushBuffer; | |
82 // TODO this is temporary | |
83 FlushBuffer::Iter fIter; | |
84 }; | |
85 | |
86 #endif | |
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