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Diffstat (limited to 'graphics/imageman.cpp')
-rw-r--r-- | graphics/imageman.cpp | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/graphics/imageman.cpp b/graphics/imageman.cpp new file mode 100644 index 0000000000..7e78b52279 --- /dev/null +++ b/graphics/imageman.cpp @@ -0,0 +1,146 @@ +/* ScummVM - Scumm Interpreter + * Copyright (C) 2006 The ScummVM project + * + * 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. + * + * $Header $ + */ + +#include "graphics/imagedec.h" +#include "graphics/imageman.h" +#include "graphics/surface.h" + +DECLARE_SINGLETON(Graphics::ImageManager); + +namespace Graphics { +ImageManager::ImageManager() : _surfaces() +#ifdef USE_ZLIB +, _archives() +#endif +{ +} + +ImageManager::~ImageManager() { + for (Iterator pos = _surfaces.begin(); pos != _surfaces.end(); ++pos) { + (*pos)->surface->free(); + delete (*pos)->surface; + delete *pos; + *pos = 0; + } + _surfaces.clear(); +#ifdef USE_ZLIB + for (ZipIterator pos = _archives.begin(); pos != _archives.end(); ++pos) { + unzClose(*pos); + } + _archives.clear(); +#endif +} + +bool ImageManager::addArchive(const Common::String &name) { +#ifdef USE_ZLIB + unzFile newFile = unzOpen(name.c_str()); + if (!newFile) + return false; + _archives.push_back(newFile); +#endif + return true; +} + +bool ImageManager::registerSurface(const Common::String &name, Surface *surf) { + if (getSurface(name)) { + return false; + } + + Entry *newHandle = new Entry; + if (!newHandle) + return false; + + if (!surf) { + surf = ImageDecoder::loadFile(name); + if (!surf) { +#ifdef USE_ZLIB + ZipIterator file = _archives.end(); + for (ZipIterator pos = _archives.begin(); pos != _archives.end(); ++pos) { + if (unzLocateFile(*pos, name.c_str(), 2) == UNZ_OK) { + file = pos; + break; + } + } + + if (file == _archives.end()) + return false; + + unz_file_info fileInfo; + unzOpenCurrentFile(*file); + unzGetCurrentFileInfo(*file, &fileInfo, NULL, 0, NULL, 0, NULL, 0); + uint8 *buffer = new uint8[fileInfo.uncompressed_size]; + assert(buffer); + unzReadCurrentFile(*file, buffer, fileInfo.uncompressed_size); + unzCloseCurrentFile(*file); + Common::MemoryReadStream stream(buffer, fileInfo.uncompressed_size); + surf = ImageDecoder::loadFile(stream); + delete [] buffer; + + if (!surf) + return false; +#else + return false; +#endif + } + } + + newHandle->surface = surf; + newHandle->name = name; + _surfaces.push_back(newHandle); + + return true; +} + +bool ImageManager::unregisterSurface(const Common::String &name) { + Iterator pos = searchHandle(name); + if (pos == _surfaces.end()) { + // no surface handle it as success + return true; + } + + (*pos)->surface->free(); + delete (*pos)->surface; + delete *pos; + *pos = 0; + + _surfaces.erase(pos); + + return true; +} + +Surface * ImageManager::getSurface(const Common::String &name) { + Iterator pos = searchHandle(name); + if (pos == _surfaces.end()) { + // no surface handle it as success + return 0; + } + return (*pos)->surface; +} + +ImageManager::Iterator ImageManager::searchHandle(const Common::String &name) { + Iterator pos = _surfaces.begin(); + while (pos != _surfaces.end()) { + if ((*pos)->name == name) + break; + ++pos; + } + return pos; +} +} // end of namespace Graphics |