diff options
Diffstat (limited to 'source/blender/compositor/intern/COM_MemoryManagerState.cpp')
-rw-r--r-- | source/blender/compositor/intern/COM_MemoryManagerState.cpp | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/source/blender/compositor/intern/COM_MemoryManagerState.cpp b/source/blender/compositor/intern/COM_MemoryManagerState.cpp new file mode 100644 index 00000000000..56946c3f0f2 --- /dev/null +++ b/source/blender/compositor/intern/COM_MemoryManagerState.cpp @@ -0,0 +1,94 @@ +/* + * 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; +} |