103 lines
2.6 KiB
C++
103 lines
2.6 KiB
C++
/*
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** Copyright 2008, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#include <stdint.h>
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#include <stddef.h>
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#include <sys/types.h>
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#include <cutils/atomic.h>
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#include <utils/RefBase.h>
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#include <utils/KeyedVector.h>
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#include <utils/Errors.h>
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#include <GLES/gl.h>
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#include "BufferObjectManager.h"
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namespace android {
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using namespace gl;
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// ----------------------------------------------------------------------------
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EGLBufferObjectManager::EGLBufferObjectManager()
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: TokenManager(), mCount(0)
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{
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}
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EGLBufferObjectManager::~EGLBufferObjectManager()
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{
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// destroy all the buffer objects and their storage
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GLsizei n = mBuffers.size();
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for (GLsizei i=0 ; i<n ; i++) {
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buffer_t* bo = mBuffers.valueAt(i);
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free(bo->data);
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delete bo;
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}
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}
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buffer_t const* EGLBufferObjectManager::bind(GLuint buffer)
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{
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Mutex::Autolock _l(mLock);
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int32_t i = mBuffers.indexOfKey(buffer);
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if (i >= 0) {
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return mBuffers.valueAt(i);
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}
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buffer_t* bo = new buffer_t;
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bo->data = 0;
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bo->usage = GL_STATIC_DRAW;
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bo->size = 0;
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bo->name = buffer;
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mBuffers.add(buffer, bo);
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return bo;
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}
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int EGLBufferObjectManager::allocateStore(buffer_t* bo,
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GLsizeiptr size, GLenum usage)
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{
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Mutex::Autolock _l(mLock);
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if (size != bo->size) {
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uint8_t* data = (uint8_t*)malloc(size);
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if (data == 0)
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return -1;
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free(bo->data);
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bo->data = data;
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bo->size = size;
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}
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bo->usage = usage;
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return 0;
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}
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void EGLBufferObjectManager::deleteBuffers(GLsizei n, const GLuint* buffers)
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{
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Mutex::Autolock _l(mLock);
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while (n--) {
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const GLuint t = *buffers++;
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if (t) {
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int32_t index = mBuffers.indexOfKey(t);
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if (index >= 0) {
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buffer_t* bo = mBuffers.valueAt(index);
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free(bo->data);
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mBuffers.removeItemsAt(index);
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delete bo;
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}
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}
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}
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}
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// ----------------------------------------------------------------------------
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}; // namespace android
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