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engines/dgds/image.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 DGDS_IMAGE_H
+#define DGDS_IMAGE_H
+
+#include "common/ptr.h"
+#include "common/rect.h"
+#include "dgds/resource.h"
+
+namespace Common {
+class SeekableReadStream;
+}
+
+namespace Graphics {
+struct Surface;
+class ManagedSurface;
+}
+
+namespace Dgds {
+
+class Decompressor;
+class DgdsChunkReader;
+class ResourceManager;
+
+enum ImageFlipMode {
+	kImageFlipNone = 0,
+	kImageFlipV = 1,
+	kImageFlipH = 2,
+	kImageFlipHV = 3,
+};
+
+class Image {
+public:
+	Image(ResourceManager *resourceMan, Decompressor *decompressor);
+	virtual ~Image();
+
+	void drawScreen(const Common::String &filename, Graphics::ManagedSurface &dst);
+
+	void loadBitmap(const Common::String &filename);
+	int frameCount(const Common::String &filename);
+	void drawBitmap(uint frameno, int x, int y, const Common::Rect &drawWin, Graphics::ManagedSurface &dst, ImageFlipMode flip = kImageFlipNone, int dstWidth = 0, int dstHeight = 0) const;
+	void drawScrollBitmap(int16 x, int16 y, int16 width, int16 height, int16 scrollX, int16 scrollY, const Common::Rect &drawWin, Graphics::ManagedSurface &dst) const;
+
+	Common::SharedPtr<Graphics::ManagedSurface> getSurface(uint frameno) const;
+
+	const Common::Array<Common::SharedPtr<Graphics::ManagedSurface>> &getFrames() const { return _frames; }
+
+	int16 getFrameFromMatrix(int16 x, int16 y);
+
+	int16 width(uint frameno) const;
+	int16 height(uint frameno) const;
+
+	int loadedFrameCount() const { return _frames.size(); }
+	bool isLoaded() const { return !_frames.empty(); }
+
+	const Common::String &getFilename() const { return _filename; }
+
+private:
+	void loadAmigaBitmap(Common::SeekableReadStream *stream, DGDS_EX ex);
+	void loadPCBitmap(Common::SeekableReadStream *stream, DGDS_EX ex);
+
+	void loadAmigaScreen(Graphics::ManagedSurface &surf, Common::SeekableReadStream *stream, DGDS_EX ex);
+	void loadPCScreen(Graphics::ManagedSurface &surf, Common::SeekableReadStream *stream, DGDS_EX ex);
+
+	void loadBitmap4(Graphics::ManagedSurface *surf, uint32 toffset, Common::SeekableReadStream *stream, bool highByte, uint16 width, uint16 height);
+	void loadBitmap8(Graphics::ManagedSurface *surf, uint32 toffset, Common::SeekableReadStream *stream, uint16 width, uint16 height);
+	uint32 loadVQT(Graphics::ManagedSurface *surf, uint32 toffset, Common::SeekableReadStream *stream);
+	bool loadSCN(Graphics::ManagedSurface *surf, Common::SeekableReadStream *stream);
+
+	Common::Array<Common::SharedPtr<Graphics::ManagedSurface>> _frames;
+	ResourceManager *_resourceMan;
+	Decompressor *_decompressor;
+
+	Common::String _filename; // the file this was loaded from - only used for debugging
+
+	// Used if the image is a scrolling image.
+	int16 _matrixX;
+	int16 _matrixY;
+	Common::Array<uint16> _tileMatrix;
+};
+
+} // End of namespace Dgds
+
+#endif // DGDS_IMAGE_H