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comparison: gfx/layers/opengl/TexturePoolOGL.cpp
gfx/layers/opengl/TexturePoolOGL.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:a54473a27db9 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #include "TexturePoolOGL.h" | |
| 6 #include <stdlib.h> // for malloc | |
| 7 #include "GLContext.h" // for GLContext | |
| 8 #include "mozilla/Monitor.h" // for Monitor, MonitorAutoLock | |
| 9 #include "mozilla/mozalloc.h" // for operator delete, etc | |
| 10 #include "nsDebug.h" // for NS_ASSERTION, NS_ERROR, etc | |
| 11 #include "nsDeque.h" // for nsDeque | |
| 12 | |
| 13 #define TEXTURE_POOL_SIZE 10 | |
| 14 | |
| 15 namespace mozilla { | |
| 16 namespace gl { | |
| 17 | |
| 18 static GLContext* sActiveContext = nullptr; | |
| 19 | |
| 20 static Monitor* sMonitor = nullptr; | |
| 21 static nsDeque* sTextures = nullptr; | |
| 22 | |
| 23 GLuint TexturePoolOGL::AcquireTexture() | |
| 24 { | |
| 25 NS_ASSERTION(sMonitor, "not initialized"); | |
| 26 | |
| 27 MonitorAutoLock lock(*sMonitor); | |
| 28 | |
| 29 if (!sActiveContext) { | |
| 30 // Wait for a context | |
| 31 sMonitor->Wait(); | |
| 32 | |
| 33 if (!sActiveContext) | |
| 34 return 0; | |
| 35 } | |
| 36 | |
| 37 GLuint texture = 0; | |
| 38 if (sActiveContext->IsOwningThreadCurrent()) { | |
| 39 sActiveContext->MakeCurrent(); | |
| 40 | |
| 41 sActiveContext->fGenTextures(1, &texture); | |
| 42 } else { | |
| 43 while (sTextures->GetSize() == 0) { | |
| 44 NS_WARNING("Waiting for texture"); | |
| 45 sMonitor->Wait(); | |
| 46 } | |
| 47 | |
| 48 GLuint* popped = (GLuint*) sTextures->Pop(); | |
| 49 if (!popped) { | |
| 50 NS_ERROR("Failed to pop texture pool item"); | |
| 51 return 0; | |
| 52 } | |
| 53 | |
| 54 texture = *popped; | |
| 55 delete popped; | |
| 56 | |
| 57 NS_ASSERTION(texture, "Failed to retrieve texture from pool"); | |
| 58 } | |
| 59 | |
| 60 return texture; | |
| 61 } | |
| 62 | |
| 63 static void Clear() | |
| 64 { | |
| 65 if (!sActiveContext) | |
| 66 return; | |
| 67 | |
| 68 sActiveContext->MakeCurrent(); | |
| 69 | |
| 70 GLuint* item; | |
| 71 while (sTextures->GetSize()) { | |
| 72 item = (GLuint*)sTextures->Pop(); | |
| 73 sActiveContext->fDeleteTextures(1, item); | |
| 74 delete item; | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 void TexturePoolOGL::Fill(GLContext* aContext) | |
| 79 { | |
| 80 NS_ASSERTION(aContext, "NULL GLContext"); | |
| 81 NS_ASSERTION(sMonitor, "not initialized"); | |
| 82 | |
| 83 MonitorAutoLock lock(*sMonitor); | |
| 84 | |
| 85 if (sActiveContext != aContext) { | |
| 86 Clear(); | |
| 87 sActiveContext = aContext; | |
| 88 } | |
| 89 | |
| 90 if (sTextures->GetSize() == TEXTURE_POOL_SIZE) | |
| 91 return; | |
| 92 | |
| 93 sActiveContext->MakeCurrent(); | |
| 94 | |
| 95 GLuint* texture = nullptr; | |
| 96 while (sTextures->GetSize() < TEXTURE_POOL_SIZE) { | |
| 97 texture = (GLuint*)malloc(sizeof(GLuint)); | |
| 98 sActiveContext->fGenTextures(1, texture); | |
| 99 sTextures->Push((void*) texture); | |
| 100 } | |
| 101 | |
| 102 sMonitor->NotifyAll(); | |
| 103 } | |
| 104 | |
| 105 void TexturePoolOGL::Init() | |
| 106 { | |
| 107 sMonitor = new Monitor("TexturePoolOGL.sMonitor"); | |
| 108 sTextures = new nsDeque(); | |
| 109 } | |
| 110 | |
| 111 void TexturePoolOGL::Shutdown() | |
| 112 { | |
| 113 delete sMonitor; | |
| 114 delete sTextures; | |
| 115 } | |
| 116 | |
| 117 } // gl | |
| 118 } // mozilla |
