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