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image/scr.h

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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 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/>.
+ *
+ */
+
+#ifndef IMAGE_SCR_H
+#define IMAGE_SCR_H
+
+#include "graphics/palette.h"
+#include "image/image_decoder.h"
+
+/**
+ * @defgroup image_scr SCR decoder
+ * @ingroup image
+ *
+ * @brief Decoder for ZX-Spectrum SCREEN$ based on:
+ * https://gist.github.com/alexanderk23/f459c76847d9412548f7
+ *
+ *
+ * Used in engines:
+ * - Freescape
+ * @{
+ */
+
+namespace Common {
+class SeekableReadStream;
+}
+
+namespace Image {
+
+class ScrDecoder : public Image::ImageDecoder {
+public:
+	ScrDecoder();
+	virtual ~ScrDecoder();
+
+	// ImageDecoder API
+	void destroy();
+	virtual bool loadStream(Common::SeekableReadStream &stream);
+	virtual const Graphics::Surface *getSurface() const { return _surface; }
+	const Graphics::Palette &getPalette() const { return _palette; }
+private:
+	Graphics::Surface *_surface;
+	Graphics::Palette _palette;
+	uint32 getPixelAddress(int x, int y);
+	uint32 getAttributeAddress(int x, int y);
+};
+} // End of namespace Image
+
+#endif // IMAGE_SCR_H