Initial commit

engines/titanic/support/image.cpp

@@ -0,0 +1,56 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "titanic/support/image.h"
+#include "titanic/support/files_manager.h"
+#include "image/bmp.h"
+#include "titanic/titanic.h"
+
+namespace Titanic {
+
+void Image::load(const CString &resName) {
+	Common::SeekableReadStream *stream = g_vm->_filesManager->getResource(resName);
+	loadBitmap(*stream);
+	delete stream;
+}
+
+void Image::loadBitmap(Common::SeekableReadStream &s) {
+	::Image::BitmapDecoder decoder;
+	decoder.loadStream(s);
+	const Graphics::Surface *src = decoder.getSurface();
+	Graphics::PixelFormat scrFormat = g_system->getScreenFormat();
+
+	if (src->format == scrFormat) {
+		create(src->w, src->h, scrFormat);
+		blitFrom(*src);
+	} else {
+		// Convert the loaded surface to the screen surface format
+		const Graphics::Palette &palette = decoder.getPalette();
+		Graphics::Surface *surface = src->convertTo(scrFormat, palette.data(), palette.size());
+		create(surface->w, surface->h, scrFormat);
+		blitFrom(*surface);
+
+		surface->free();
+		delete surface;
+	}
+}
+
+} // End of namespace Titanic