OLD | NEW |
1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 GrFlushToGpuDrawTarget_DEFINED | 8 #ifndef GrFlushToGpuDrawTarget_DEFINED |
9 #define GrFlushToGpuDrawTarget_DEFINED | 9 #define GrFlushToGpuDrawTarget_DEFINED |
10 | 10 |
11 #include "GrDrawTarget.h" | 11 #include "GrDrawTarget.h" |
12 | 12 |
13 class GrIndexBufferAllocPool; | 13 class GrIndexBufferAllocPool; |
14 class GrVertexBufferAllocPool; | 14 class GrVertexBufferAllocPool; |
15 class GrGpu; | 15 class GrGpu; |
16 | 16 |
17 /** | 17 /** |
18 * Base class for draw targets that accumulate index and vertex data in buffers
for deferred. | 18 * Base class for draw targets that accumulate index and vertex data in buffers
for deferred. |
19 * When draw target clients reserve geometry this subclass will place that geome
try into | 19 * When draw target clients reserve geometry this subclass will place that geome
try into |
20 * preallocated vertex/index buffers in the order the requests are made (assumin
g the requests fit | 20 * preallocated vertex/index buffers in the order the requests are made (assumin
g the requests fit |
21 * in the preallocated buffers). | 21 * in the preallocated buffers). |
22 */ | 22 */ |
23 class GrFlushToGpuDrawTarget : public GrClipTarget { | 23 class GrFlushToGpuDrawTarget : public GrClipTarget { |
24 public: | 24 public: |
25 GrFlushToGpuDrawTarget(GrGpu*, GrVertexBufferAllocPool*,GrIndexBufferAllocPo
ol*); | 25 GrFlushToGpuDrawTarget(GrGpu*, GrVertexBufferAllocPool*,GrIndexBufferAllocPo
ol*); |
26 | 26 |
27 ~GrFlushToGpuDrawTarget() override; | |
28 | |
29 /** | 27 /** |
30 * Empties the draw buffer of any queued up draws. This must not be called w
hile inside an | 28 * Empties the draw buffer of any queued up draws. This must not be called w
hile inside an |
31 * unbalanced pushGeometrySource(). | 29 * unbalanced pushGeometrySource(). |
32 */ | 30 */ |
33 void reset(); | 31 void reset(); |
34 | 32 |
35 /** | 33 /** |
36 * This plays any queued up draws to its GrGpu target. It also resets this o
bject (i.e. flushing | 34 * This plays any queued up draws to its GrGpu target. It also resets this o
bject (i.e. flushing |
37 * is destructive). This buffer must not have an active reserved vertex or i
ndex source. Any | 35 * is destructive). This buffer must not have an active reserved vertex or i
ndex source. Any |
38 * reserved geometry on the target will be finalized because it's geometry s
ource will be pushed | 36 * reserved geometry on the target will be finalized because it's geometry s
ource will be pushed |
39 * before flushing and popped afterwards. | 37 * before flushing and popped afterwards. |
40 */ | 38 */ |
41 void flush(); | 39 void flush(); |
42 | 40 |
43 bool geometryHints(size_t vertexStride, int* vertexCount, int* indexCount) c
onst override; | |
44 | |
45 protected: | 41 protected: |
46 GrGpu* getGpu() { return fGpu; } | 42 GrGpu* getGpu() { return fGpu; } |
47 const GrGpu* getGpu() const{ return fGpu; } | 43 const GrGpu* getGpu() const{ return fGpu; } |
48 | 44 |
49 GrVertexBufferAllocPool* getVertexAllocPool() { return fVertexPool; } | 45 GrVertexBufferAllocPool* getVertexAllocPool() { return fVertexPool; } |
50 GrIndexBufferAllocPool* getIndexAllocPool() { return fIndexPool; } | 46 GrIndexBufferAllocPool* getIndexAllocPool() { return fIndexPool; } |
51 | 47 |
52 // TODO all of this goes away when batch is everywhere | |
53 enum { | |
54 kGeoPoolStatePreAllocCnt = 4, | |
55 }; | |
56 | |
57 struct GeometryPoolState { | |
58 const GrVertexBuffer* fPoolVertexBuffer; | |
59 int fPoolStartVertex; | |
60 const GrIndexBuffer* fPoolIndexBuffer; | |
61 int fPoolStartIndex; | |
62 // caller may conservatively over reserve vertices / indices. | |
63 // we release unused space back to allocator if possible | |
64 // can only do this if there isn't an intervening pushGeometrySource() | |
65 size_t fUsedPoolVertexBytes; | |
66 size_t fUsedPoolIndexBytes; | |
67 }; | |
68 | |
69 typedef SkSTArray<kGeoPoolStatePreAllocCnt, GeometryPoolState> GeoPoolStateS
tack; | |
70 const GeoPoolStateStack& getGeoPoolStateStack() const { return fGeoPoolState
Stack; } | |
71 | |
72 void willReserveVertexAndIndexSpace(int vertexCount, | |
73 size_t vertexStride, | |
74 int indexCount) override; | |
75 | |
76 private: | 48 private: |
77 virtual void onReset() = 0; | 49 virtual void onReset() = 0; |
78 | 50 |
79 virtual void onFlush() = 0; | 51 virtual void onFlush() = 0; |
80 | 52 |
81 void setDrawBuffers(DrawInfo*, size_t stride) override; | |
82 bool onReserveVertexSpace(size_t vertexSize, int vertexCount, void** vertice
s) override; | |
83 bool onReserveIndexSpace(int indexCount, void** indices) override; | |
84 void releaseReservedVertexSpace() override; | |
85 void releaseReservedIndexSpace() override; | |
86 void geometrySourceWillPush() override; | |
87 void geometrySourceWillPop(const GeometrySrcState& restoredState) override; | |
88 bool onCanCopySurface(const GrSurface* dst, | 53 bool onCanCopySurface(const GrSurface* dst, |
89 const GrSurface* src, | 54 const GrSurface* src, |
90 const SkIRect& srcRect, | 55 const SkIRect& srcRect, |
91 const SkIPoint& dstPoint) override; | 56 const SkIPoint& dstPoint) override; |
92 bool onInitCopySurfaceDstDesc(const GrSurface* src, GrSurfaceDesc* desc) ove
rride; | 57 bool onInitCopySurfaceDstDesc(const GrSurface* src, GrSurfaceDesc* desc) ove
rride; |
93 | 58 |
94 GeoPoolStateStack fGeoPoolStateStack; | |
95 SkAutoTUnref<GrGpu> fGpu; | 59 SkAutoTUnref<GrGpu> fGpu; |
96 GrVertexBufferAllocPool* fVertexPool; | 60 GrVertexBufferAllocPool* fVertexPool; |
97 GrIndexBufferAllocPool* fIndexPool; | 61 GrIndexBufferAllocPool* fIndexPool; |
98 bool fFlushing; | 62 bool fFlushing; |
99 | 63 |
100 typedef GrClipTarget INHERITED; | 64 typedef GrClipTarget INHERITED; |
101 }; | 65 }; |
102 | 66 |
103 #endif | 67 #endif |
OLD | NEW |