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https://github.com/libretro/scummvm.git
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147 lines
3.5 KiB
C++
147 lines
3.5 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2006 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $Header $
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*/
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#include "graphics/imagedec.h"
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#include "graphics/imageman.h"
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#include "graphics/surface.h"
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DECLARE_SINGLETON(Graphics::ImageManager);
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namespace Graphics {
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ImageManager::ImageManager() : _surfaces()
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#ifdef USE_ZLIB
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, _archives()
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#endif
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{
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}
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ImageManager::~ImageManager() {
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for (Iterator pos = _surfaces.begin(); pos != _surfaces.end(); ++pos) {
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(*pos)->surface->free();
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delete (*pos)->surface;
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delete *pos;
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*pos = 0;
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}
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_surfaces.clear();
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#ifdef USE_ZLIB
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for (ZipIterator pos2 = _archives.begin(); pos2 != _archives.end(); ++pos2) {
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unzClose(*pos2);
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}
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_archives.clear();
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#endif
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}
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bool ImageManager::addArchive(const Common::String &name) {
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#ifdef USE_ZLIB
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unzFile newFile = unzOpen(name.c_str());
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if (!newFile)
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return false;
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_archives.push_back(newFile);
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#endif
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return true;
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}
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bool ImageManager::registerSurface(const Common::String &name, Surface *surf) {
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if (getSurface(name)) {
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return false;
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}
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Entry *newHandle = new Entry;
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if (!newHandle)
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return false;
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if (!surf) {
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surf = ImageDecoder::loadFile(name);
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if (!surf) {
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#ifdef USE_ZLIB
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ZipIterator file = _archives.end();
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for (ZipIterator pos = _archives.begin(); pos != _archives.end(); ++pos) {
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if (unzLocateFile(*pos, name.c_str(), 2) == UNZ_OK) {
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file = pos;
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break;
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}
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}
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if (file == _archives.end())
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return false;
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unz_file_info fileInfo;
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unzOpenCurrentFile(*file);
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unzGetCurrentFileInfo(*file, &fileInfo, NULL, 0, NULL, 0, NULL, 0);
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uint8 *buffer = new uint8[fileInfo.uncompressed_size];
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assert(buffer);
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unzReadCurrentFile(*file, buffer, fileInfo.uncompressed_size);
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unzCloseCurrentFile(*file);
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Common::MemoryReadStream stream(buffer, fileInfo.uncompressed_size);
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surf = ImageDecoder::loadFile(stream);
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delete [] buffer;
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if (!surf)
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return false;
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#else
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return false;
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#endif
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}
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}
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newHandle->surface = surf;
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newHandle->name = name;
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_surfaces.push_back(newHandle);
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return true;
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}
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bool ImageManager::unregisterSurface(const Common::String &name) {
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Iterator pos = searchHandle(name);
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if (pos == _surfaces.end()) {
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// no surface handle it as success
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return true;
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}
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(*pos)->surface->free();
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delete (*pos)->surface;
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delete *pos;
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*pos = 0;
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_surfaces.erase(pos);
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return true;
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}
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Surface * ImageManager::getSurface(const Common::String &name) {
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Iterator pos = searchHandle(name);
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if (pos == _surfaces.end()) {
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// no surface handle it as success
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return 0;
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}
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return (*pos)->surface;
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}
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ImageManager::Iterator ImageManager::searchHandle(const Common::String &name) {
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Iterator pos = _surfaces.begin();
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while (pos != _surfaces.end()) {
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if ((*pos)->name == name)
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break;
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++pos;
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}
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return pos;
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}
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} // end of namespace Graphics
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