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1 | |
2 /* | 1 /* |
3 * Copyright 2010 Google Inc. | 2 * Copyright 2010 Google Inc. |
4 * | 3 * |
5 * 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 |
6 * found in the LICENSE file. | 5 * found in the LICENSE file. |
7 */ | 6 */ |
8 | 7 |
9 | |
10 | |
11 #ifndef GrBufferAllocPool_DEFINED | 8 #ifndef GrBufferAllocPool_DEFINED |
12 #define GrBufferAllocPool_DEFINED | 9 #define GrBufferAllocPool_DEFINED |
13 | 10 |
14 #include "GrNoncopyable.h" | |
15 | |
16 #include "SkTArray.h" | 11 #include "SkTArray.h" |
17 #include "SkTDArray.h" | 12 #include "SkTDArray.h" |
| 13 #include "SkTypes.h" |
18 | 14 |
19 class GrGeometryBuffer; | 15 class GrGeometryBuffer; |
20 class GrGpu; | 16 class GrGpu; |
21 | 17 |
22 /** | 18 /** |
23 * A pool of geometry buffers tied to a GrGpu. | 19 * A pool of geometry buffers tied to a GrGpu. |
24 * | 20 * |
25 * The pool allows a client to make space for geometry and then put back excess | 21 * The pool allows a client to make space for geometry and then put back excess |
26 * space if it over allocated. When a client is ready to draw from the pool | 22 * space if it over allocated. When a client is ready to draw from the pool |
27 * it calls unlock on the pool ensure buffers are ready for drawing. The pool | 23 * it calls unlock on the pool ensure buffers are ready for drawing. The pool |
28 * can be reset after drawing is completed to recycle space. | 24 * can be reset after drawing is completed to recycle space. |
29 * | 25 * |
30 * At creation time a minimum per-buffer size can be specified. Additionally, | 26 * At creation time a minimum per-buffer size can be specified. Additionally, |
31 * a number of buffers to preallocate can be specified. These will | 27 * a number of buffers to preallocate can be specified. These will |
32 * be allocated at the min size and kept around until the pool is destroyed. | 28 * be allocated at the min size and kept around until the pool is destroyed. |
33 */ | 29 */ |
34 class GrBufferAllocPool : GrNoncopyable { | 30 class GrBufferAllocPool : public SkNoncopyable { |
35 | |
36 public: | 31 public: |
37 /** | 32 /** |
38 * Ensures all buffers are unlocked and have all data written to them. | 33 * Ensures all buffers are unlocked and have all data written to them. |
39 * Call before drawing using buffers from the pool. | 34 * Call before drawing using buffers from the pool. |
40 */ | 35 */ |
41 void unlock(); | 36 void unlock(); |
42 | 37 |
43 /** | 38 /** |
44 * Invalidates all the data in the pool, unrefs non-preallocated buffers. | 39 * Invalidates all the data in the pool, unrefs non-preallocated buffers. |
45 */ | 40 */ |
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343 * @return number of indices that fit in one of the preallocated index | 338 * @return number of indices that fit in one of the preallocated index |
344 * buffers. | 339 * buffers. |
345 */ | 340 */ |
346 int preallocatedBufferIndices() const; | 341 int preallocatedBufferIndices() const; |
347 | 342 |
348 private: | 343 private: |
349 typedef GrBufferAllocPool INHERITED; | 344 typedef GrBufferAllocPool INHERITED; |
350 }; | 345 }; |
351 | 346 |
352 #endif | 347 #endif |
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