The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/gpu/GrStencilBuffer.cpp
gfx/skia/trunk/src/gpu/GrStencilBuffer.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:9bbe3a258a1d |
|---|---|
| 1 | |
| 2 /* | |
| 3 * Copyright 2011 Google Inc. | |
| 4 * | |
| 5 * Use of this source code is governed by a BSD-style license that can be | |
| 6 * found in the LICENSE file. | |
| 7 */ | |
| 8 | |
| 9 #include "GrStencilBuffer.h" | |
| 10 | |
| 11 #include "GrContext.h" | |
| 12 #include "GrGpu.h" | |
| 13 #include "GrResourceCache.h" | |
| 14 | |
| 15 void GrStencilBuffer::transferToCache() { | |
| 16 SkASSERT(NULL == this->getCacheEntry()); | |
| 17 | |
| 18 this->getGpu()->getContext()->addStencilBuffer(this); | |
| 19 } | |
| 20 | |
| 21 namespace { | |
| 22 // we should never have more than one stencil buffer with same combo of (width,height,samplecount) | |
| 23 void gen_cache_id(int width, int height, int sampleCnt, GrCacheID* cacheID) { | |
| 24 static const GrCacheID::Domain gStencilBufferDomain = GrCacheID::GenerateDomain(); | |
| 25 GrCacheID::Key key; | |
| 26 uint32_t* keyData = key.fData32; | |
| 27 keyData[0] = width; | |
| 28 keyData[1] = height; | |
| 29 keyData[2] = sampleCnt; | |
| 30 memset(keyData + 3, 0, sizeof(key) - 3 * sizeof(uint32_t)); | |
| 31 GR_STATIC_ASSERT(sizeof(key) >= 3 * sizeof(uint32_t)); | |
| 32 cacheID->reset(gStencilBufferDomain, key); | |
| 33 } | |
| 34 } | |
| 35 | |
| 36 GrResourceKey GrStencilBuffer::ComputeKey(int width, | |
| 37 int height, | |
| 38 int sampleCnt) { | |
| 39 // All SBs are created internally to attach to RTs so they all use the same domain. | |
| 40 static const GrResourceKey::ResourceType gStencilBufferResourceType = | |
| 41 GrResourceKey::GenerateResourceType(); | |
| 42 GrCacheID id; | |
| 43 gen_cache_id(width, height, sampleCnt, &id); | |
| 44 | |
| 45 // we don't use any flags for SBs currently. | |
| 46 return GrResourceKey(id, gStencilBufferResourceType, 0); | |
| 47 } |
