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/* 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
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