| // SwiftShader Software Renderer |
| // |
| // Copyright(c) 2005-2012 TransGaming Inc. |
| // |
| // All rights reserved. No part of this software may be copied, distributed, transmitted, |
| // transcribed, stored in a retrieval system, translated into any human or computer |
| // language by any means, or disclosed to third parties without the explicit written |
| // agreement of TransGaming Inc. Without such an agreement, no rights or licenses, express |
| // or implied, including but not limited to any patent rights, are granted to you. |
| // |
| |
| // NameSpace.cpp: Implements the NameSpace class, which is used |
| // to allocate GL object names. |
| |
| #include "common/NameSpace.hpp" |
| |
| #include "debug.h" |
| |
| namespace gl |
| { |
| |
| NameSpace::NameSpace() : baseValue(1), nextValue(1) |
| { |
| } |
| |
| NameSpace::~NameSpace() |
| { |
| } |
| |
| void NameSpace::setBaseHandle(GLuint value) |
| { |
| ASSERT(baseValue == nextValue); |
| baseValue = value; |
| nextValue = value; |
| } |
| |
| GLuint NameSpace::allocate() |
| { |
| if(freeValues.size()) |
| { |
| GLuint handle = freeValues.back(); |
| freeValues.pop_back(); |
| |
| return handle; |
| } |
| |
| return nextValue++; |
| } |
| |
| void NameSpace::release(GLuint handle) |
| { |
| if(handle == nextValue - 1) |
| { |
| // Don't drop below base value |
| if(nextValue > baseValue) |
| { |
| nextValue--; |
| } |
| } |
| else |
| { |
| // Only free handles that we own - don't drop below the base value |
| if(handle >= baseValue) |
| { |
| freeValues.push_back(handle); |
| } |
| } |
| } |
| |
| } |