replicant-frameworks_native/opengl/libagl/TokenManager.cpp

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/* libs/opengles/surface.cpp
**
** Copyright 2006, 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 <stdio.h>
#include <stdlib.h>
#include "TokenManager.h"
namespace android {
// ----------------------------------------------------------------------------
TokenManager::TokenManager()
{
// token 0 is always reserved
mTokenizer.reserve(0);
}
TokenManager::~TokenManager()
{
}
status_t TokenManager::getToken(GLsizei n, GLuint *tokens)
{
Mutex::Autolock _l(mLock);
for (GLsizei i=0 ; i<n ; i++)
*tokens++ = mTokenizer.acquire();
return NO_ERROR;
}
void TokenManager::recycleTokens(GLsizei n, const GLuint *tokens)
{
Mutex::Autolock _l(mLock);
for (int i=0 ; i<n ; i++) {
const GLuint token = *tokens++;
if (token) {
mTokenizer.release(token);
}
}
}
bool TokenManager::isTokenValid(GLuint token) const
{
Mutex::Autolock _l(mLock);
return mTokenizer.isAcquired(token);
}
// ----------------------------------------------------------------------------
}; // namespace android