michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "VBOArena.h"
michael@0: #include "GLContext.h"
michael@0: 
michael@0: using namespace mozilla::gl;
michael@0: 
michael@0: GLuint VBOArena::Allocate(GLContext *aGLContext)
michael@0: {
michael@0:     if (!mAvailableVBOs.size()) {
michael@0:         GLuint vbo;
michael@0:         aGLContext->fGenBuffers(1, &vbo);
michael@0:         mAllocatedVBOs.push_back(vbo);
michael@0:         return vbo;
michael@0:     }
michael@0:     GLuint vbo = mAvailableVBOs.back();
michael@0:     mAvailableVBOs.pop_back();
michael@0:     return vbo;
michael@0: }
michael@0: 
michael@0: void VBOArena::Reset()
michael@0: {
michael@0:     mAvailableVBOs = mAllocatedVBOs;
michael@0: }
michael@0: 
michael@0: void VBOArena::Flush(GLContext *aGLContext)
michael@0: {
michael@0:     if (mAvailableVBOs.size()) {
michael@0: #ifdef DEBUG
michael@0:         printf_stderr("VBOArena::Flush for %u VBOs\n", mAvailableVBOs.size());
michael@0: #endif
michael@0:         aGLContext->fDeleteBuffers(mAvailableVBOs.size(), &mAvailableVBOs[0]);
michael@0:     }
michael@0: }