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/*
* Copyright 2011, Blender Foundation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributor:
* Jeroen Bakker
* Monique Dewanchand
*/
#include "COM_MemoryManagerState.h"
MemoryManagerState::MemoryManagerState(MemoryProxy *memoryProxy) {
this->memoryProxy = memoryProxy;
this->currentSize = 0;
this->chunkBuffers = NULL;
BLI_mutex_init(&this->mutex);
}
MemoryProxy * MemoryManagerState::getMemoryProxy() {
return this->memoryProxy;
}
MemoryManagerState::~MemoryManagerState() {
this->memoryProxy = NULL;
unsigned int index;
for (index = 0 ; index < this->currentSize; index ++){
MemoryBuffer* buffer = this->chunkBuffers[index];
if (buffer) {
delete buffer;
}
}
delete this->chunkBuffers;
BLI_mutex_end(&this->mutex);
}
void MemoryManagerState::addMemoryBuffer(MemoryBuffer *buffer) {
BLI_mutex_lock(&this->mutex);
unsigned int chunkNumber = buffer->getChunkNumber();
unsigned int index;
while (this->currentSize <= chunkNumber) {
unsigned int newSize = this->currentSize + 1000;
MemoryBuffer** newbuffer = new MemoryBuffer*[newSize];
MemoryBuffer** oldbuffer = this->chunkBuffers;
for (index = 0 ; index < this->currentSize ; index++) {
newbuffer[index] = oldbuffer[index];
}
for (index = currentSize ; index < newSize; index++) {
newbuffer[index] = NULL;
}
this->chunkBuffers = newbuffer;
this->currentSize = newSize;
if (oldbuffer) delete oldbuffer;
}
if (this->chunkBuffers[chunkNumber] == NULL) {
this->chunkBuffers[chunkNumber] = buffer;
} else {
throw "ALREADY ALLOCATED!";
}
BLI_mutex_unlock(&this->mutex);
}
MemoryBuffer* MemoryManagerState::getMemoryBuffer(unsigned int chunkNumber) {
MemoryBuffer* result = NULL;
if (chunkNumber< this->currentSize){
result = this->chunkBuffers[chunkNumber];
if (result) {
return result;
}
}
BLI_mutex_lock(&this->mutex);
if (chunkNumber< this->currentSize){
result = this->chunkBuffers[chunkNumber];
}
BLI_mutex_unlock(&this->mutex);
return result;
}
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