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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;
+
+// Lade Methode
+// ------------
+
+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;
+}
+
+// Info Methode
+// ------------
+
+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;
+}
+
+// Verwaltungs Methoden
+// --------------------
+
+void ImageLoader::_InitializeLoaderList() {
+ // Von jedem BS_ImageLoader wird eine Instanz erzeugt, diese fügen sich selbständig in die BS_ImageLoader-Liste ein.
+ for (int i = 0; i < BS_IMAGELOADER_COUNT; i++)
+ BS_IMAGELOADER_IDS[i]();
+
+ // Die Liste als gefüllt markieren.
+ _ImageLoaderListInitialized = true;
+
+ // Sicherstellen, dass beim Beenden alle BS_ImageLoader Instanzen zerstört 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 zurückgegeben.
+ 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