The Tor Browser / file comparison
comparison: gfx/angle/src/libGLESv2/HandleAllocator.cpp
gfx/angle/src/libGLESv2/HandleAllocator.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:289dc2e7db7b |
|---|---|
| 1 #include "precompiled.h" | |
| 2 // | |
| 3 // Copyright (c) 2002-2011 The ANGLE Project Authors. All rights reserved. | |
| 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 // HandleAllocator.cpp: Implements the gl::HandleAllocator class, which is used | |
| 9 // to allocate GL handles. | |
| 10 | |
| 11 #include "libGLESv2/HandleAllocator.h" | |
| 12 | |
| 13 #include "libGLESv2/main.h" | |
| 14 | |
| 15 namespace gl | |
| 16 { | |
| 17 | |
| 18 HandleAllocator::HandleAllocator() : mBaseValue(1), mNextValue(1) | |
| 19 { | |
| 20 } | |
| 21 | |
| 22 HandleAllocator::~HandleAllocator() | |
| 23 { | |
| 24 } | |
| 25 | |
| 26 void HandleAllocator::setBaseHandle(GLuint value) | |
| 27 { | |
| 28 ASSERT(mBaseValue == mNextValue); | |
| 29 mBaseValue = value; | |
| 30 mNextValue = value; | |
| 31 } | |
| 32 | |
| 33 GLuint HandleAllocator::allocate() | |
| 34 { | |
| 35 if (mFreeValues.size()) | |
| 36 { | |
| 37 GLuint handle = mFreeValues.back(); | |
| 38 mFreeValues.pop_back(); | |
| 39 return handle; | |
| 40 } | |
| 41 return mNextValue++; | |
| 42 } | |
| 43 | |
| 44 void HandleAllocator::release(GLuint handle) | |
| 45 { | |
| 46 if (handle == mNextValue - 1) | |
| 47 { | |
| 48 // Don't drop below base value | |
| 49 if(mNextValue > mBaseValue) | |
| 50 { | |
| 51 mNextValue--; | |
| 52 } | |
| 53 } | |
| 54 else | |
| 55 { | |
| 56 // Only free handles that we own - don't drop below the base value | |
| 57 if (handle >= mBaseValue) | |
| 58 { | |
| 59 mFreeValues.push_back(handle); | |
| 60 } | |
| 61 } | |
| 62 } | |
| 63 | |
| 64 } |
