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author | Paul Gilbert | 2012-04-29 23:19:30 +1000 |
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committer | Paul Gilbert | 2012-04-29 23:22:24 +1000 |
commit | 118f5ca0102144b5c282f012def6c96c69052bc1 (patch) | |
tree | 388ae8a2c5096e44e139e0b88c793c569a1a8a15 /engines/tony/mpal/memory.cpp | |
parent | 4784367debbaeae656f3bdec5a146b821150a2d0 (diff) | |
download | scummvm-rg350-118f5ca0102144b5c282f012def6c96c69052bc1.tar.gz scummvm-rg350-118f5ca0102144b5c282f012def6c96c69052bc1.tar.bz2 scummvm-rg350-118f5ca0102144b5c282f012def6c96c69052bc1.zip |
TONY: Implemented RMGameBoxes class and all dependent classes
Diffstat (limited to 'engines/tony/mpal/memory.cpp')
-rw-r--r-- | engines/tony/mpal/memory.cpp | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/engines/tony/mpal/memory.cpp b/engines/tony/mpal/memory.cpp new file mode 100644 index 0000000000..604e61ed24 --- /dev/null +++ b/engines/tony/mpal/memory.cpp @@ -0,0 +1,145 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * 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. + * + * + */ + +#include "common/textconsole.h" +#include "tony/mpal/memory.h" + +namespace Tony { + +namespace MPAL { + +/****************************************************************************\ +* MemoryItem methods +\****************************************************************************/ + +/** + * Constructor + * @param Data sizee + */ +MemoryItem::MemoryItem(uint32 size) { + _size = size; + _buffer = (size == 0) ? NULL : new byte[size]; +} + +/** + * Destructor + */ +MemoryItem::~MemoryItem() { + delete[] _buffer; +} + +/** + * Returns a pointer to the resource + */ +MemoryItem::operator void *() { + return DataPointer(); +} + +/****************************************************************************\ +* MemoryManager methods +\****************************************************************************/ + +MemoryManager::MemoryManager() { +} + +/** + * Destructor + */ +MemoryManager::~MemoryManager() { + Common::List<MemoryItem *>::iterator i; + for (i = _memoryBlocks.begin(); i != _memoryBlocks.end(); ++i) { + MemoryItem *item = *i; + delete item; + } +} + +/** + * Allocates a new memory block + * @returns Returns a MemoryItem instance for the new block + */ +MemoryItem &MemoryManager::allocate(uint32 size) { + MemoryItem *newItem = new MemoryItem(size); + _memoryBlocks.push_back(newItem); + + return *newItem; +} + +/** + * Allocates a new memory block and returns it's data pointer + * @returns Data pointer to allocated block + */ +HGLOBAL MemoryManager::alloc(uint32 size) { + MemoryItem &newItem = allocate(size); + return (HGLOBAL)newItem.DataPointer(); +} + +/** + * Returns a reference to the MemoryItem for a gien byte pointer + * @param block Byte pointer + */ +MemoryItem &MemoryManager::getItem(HGLOBAL handle) { + Common::List<MemoryItem *>::iterator i; + for (i = _memoryBlocks.begin(); i != _memoryBlocks.end(); ++i) { + MemoryItem *item = *i; + if (item->DataPointer() == handle) + return *item; + } + + error("Could not locate a memory block"); +} + +/** + * Square bracketes operator + * @param block Byte pointer + */ +MemoryItem &MemoryManager::operator[](HGLOBAL handle) { + return getItem(handle); +} + +/** + * Returns a size of a memory block given it's pointer + */ +uint32 MemoryManager::getSize(HGLOBAL handle) { + MemoryItem &item = getItem(handle); + return item.Size(); +} + +/** + * Erases a given item + */ +void MemoryManager::erase(MemoryItem &item) { + delete item; + _memoryBlocks.remove(&item); +} + +/** + * Erases a given item + */ +void MemoryManager::erase(HGLOBAL handle) { + MemoryItem &item = getItem(handle); + erase(item); +} + +} // end of namespace MPAL + +} // end of namespace Tony |