Initial commit

engines/freescape/doodle.h

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+#ifndef IMAGE_DOODLE_DECODER_H
+#define IMAGE_DOODLE_DECODER_H
+
+#include "image/image_decoder.h"
+#include "common/stream.h"
+#include "graphics/palette.h"
+#include "graphics/surface.h"
+
+namespace Image {
+
+class DoodleDecoder : public ImageDecoder {
+public:
+	/**
+	 * Constructor for the DoodleDecoder
+	 * @param palette Pointer to RGB palette data (16 colors * 3 components)
+	 */
+	DoodleDecoder(const byte *palette);
+	~DoodleDecoder() override;
+
+	// ImageDecoder interface
+	bool loadStream(Common::SeekableReadStream &stream) override;
+	void destroy() override;
+	const Graphics::Surface *getSurface() const override { return _surface; }
+	const Graphics::Palette &getPalette() const override { return _palette; }
+
+	/**
+	 * Load a C64 doodle image from its component streams
+	 * @param highresStream Stream containing high-resolution pixel data
+	 * @param colorStream1 Stream containing first color data file
+	 * @param colorStream2 Stream containing second color data file
+	 * @return Whether loading succeeded
+	 */
+	bool loadStreams(Common::SeekableReadStream &highresStream,
+	                 Common::SeekableReadStream &colorStream1,
+	                 Common::SeekableReadStream &colorStream2);
+
+private:
+	static const int kWidth = 320;
+	static const int kHeight = 200;
+	static const int kHeaderSize = 192;
+	static const int kColorDataSize = 1000;  // 40x25 color cells
+
+	Graphics::Surface *_surface;
+	Graphics::Palette _palette;
+
+	/**
+	 * Process an 8x8 cell of the image
+	 * @param cellIdx Cell index (0-999)
+	 * @param highresData Pointer to high-resolution pixel data
+	 * @param colorData1 First color data array
+	 * @param colorData2 Second color data array
+	 */
+	void processDoodleCell(int cellIdx, const byte *highresData,
+	                       const byte *colorData1, const byte *colorData2);
+};
+
+} // End of namespace Image
+
+#endif