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/* 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.
*
* $URL$
* $Id$
*
*/
/*
* This code is based on Broken Sword 2.5 engine
*
* Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
*
* Licensed under GNU GPL v2
*
*/
#include "sword25/gfx/image/imageloader.h"
#include "sword25/gfx/image/imageloader_ids.h"
namespace Sword25 {
#define BS_LOG_PREFIX "IMAGELOADER"
// Statische Elemente der Klasse BS_ImageLoader intialisieren.
Common::List<ImageLoader *> ImageLoader::_imageLoaderList;
bool ImageLoader::_imageLoaderListInitialized = false;
bool ImageLoader::loadImage(const byte *pFileData, uint fileSize,
GraphicEngine::COLOR_FORMATS colorFormat,
byte *&pUncompressedData,
int &width, int &height,
int &pitch) {
// Falls die Liste der BS_ImageLoader noch nicht initialisiert wurde, wird dies getan.
if (!_imageLoaderListInitialized)
initializeLoaderList();
// Passenden BS_ImageLoader finden und Bild dekodieren
ImageLoader *pLoader = findSuitableImageLoader(pFileData, fileSize);
if (pLoader) {
return pLoader->decodeImage(pFileData, fileSize,
colorFormat,
pUncompressedData,
width, height,
pitch);
}
return false;
}
bool ImageLoader::extractImageProperties(const byte *pFileData, uint fileSize,
GraphicEngine::COLOR_FORMATS &colorFormat,
int &width, int &height) {
// Falls die Liste der BS_ImageLoader noch nicht initialisiert wurde, wird dies getan.
if (!_imageLoaderListInitialized)
initializeLoaderList();
// Passenden BS_ImageLoader finden und Bildeigenschaften auslesen.
ImageLoader *pLoader = findSuitableImageLoader(pFileData, fileSize);
if (pLoader) {
return pLoader->imageProperties(pFileData, fileSize,
colorFormat,
width, height);
}
return false;
}
void ImageLoader::initializeLoaderList() {
// Von jedem BS_ImageLoader wird eine Instanz erzeugt, diese f�gen sich selbst�ndig in die BS_ImageLoader-Liste ein.
for (int i = 0; i < BS_IMAGELOADER_COUNT; i++)
BS_IMAGELOADER_IDS[i]();
// Die Liste als gef�llt markieren.
_imageLoaderListInitialized = true;
// Sicherstellen, dass beim Beenden alle BS_ImageLoader Instanzen zerst�rt werden.
atexit(ImageLoader::deinitializeLoaderList);
}
void ImageLoader::deinitializeLoaderList() {
while (!_imageLoaderList.empty()) {
delete _imageLoaderList.back();
_imageLoaderList.pop_back();
}
}
ImageLoader *ImageLoader::findSuitableImageLoader(const byte *pFileData, uint fileSize) {
// Alle BS_ImageLoader-Objekte durchgehen, bis eins gefunden wurde, dass das Bild laden kann
Common::List<ImageLoader *>::iterator iter = _imageLoaderList.begin();
for (; iter != _imageLoaderList.end(); ++iter) {
// Falls ein geeigneter BS-ImageLoader gefunden wurde, wird er zur�ckgegeben.
if ((*iter)->isCorrectImageFormat(pFileData, fileSize)) {
return (*iter);
}
}
// Es konnte kein passender BS_ImageLoader gefunden werden.
BS_LOG_ERRORLN("Could not find suitable image loader for image data.");
return NULL;
}
} // End of namespace Sword25
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