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Diffstat (limited to 'engines/sherlock/image_file.h')
| -rw-r--r-- | engines/sherlock/image_file.h | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/engines/sherlock/image_file.h b/engines/sherlock/image_file.h new file mode 100644 index 0000000000..3ac0cf4b5f --- /dev/null +++ b/engines/sherlock/image_file.h @@ -0,0 +1,207 @@ +/* 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. + * + */ + +#ifndef SHERLOCK_IMAGE_FILE_H +#define SHERLOCK_IMAGE_FILE_H + +#include "common/array.h" +#include "common/file.h" +#include "common/hashmap.h" +#include "common/hash-str.h" +#include "common/rect.h" +#include "common/str.h" +#include "common/stream.h" +#include "graphics/surface.h" + +namespace Sherlock { + +class SherlockEngine; + +struct ImageFrame { + uint32 _size; + uint16 _width, _height; + int _paletteBase; + bool _rleEncoded; + Common::Point _offset; + byte _rleMarker; + Graphics::Surface _frame; + + /** + * Decompress a single frame for the sprite + */ + void decompressFrame(const byte *src, bool isRoseTattoo); + + /** + * Return the frame width adjusted by a specified scale amount + */ + int sDrawXSize(int scaleVal) const; + + /** + * Return the frame height adjusted by a specified scale amount + */ + int sDrawYSize(int scaleVal) const; + + /** + * Return the frame offset x adjusted by a specified scale amount + */ + int sDrawXOffset(int scaleVal) const; + + /** + * Return the frame offset y adjusted by a specified scale amount + */ + int sDrawYOffset(int scaleVal) const; +}; + +class ImageFile : public Common::Array<ImageFrame> { +private: + static SherlockEngine *_vm; + + /** + * Load the data of the sprite + */ + void load(Common::SeekableReadStream &stream, bool skipPalette, bool animImages); + + /** + * Gets the palette at the start of the sprite file + */ + void loadPalette(Common::SeekableReadStream &stream); +public: + byte _palette[256 * 3]; +public: + ImageFile(); + ImageFile(const Common::String &name, bool skipPal = false, bool animImages = false); + ImageFile(Common::SeekableReadStream &stream, bool skipPal = false); + ~ImageFile(); + static void setVm(SherlockEngine *vm); +}; + +enum ImageFile3DOType { + kImageFile3DOType_Animation = 0, + kImageFile3DOType_Cel = 1, + kImageFile3DOType_CelAnimation = 2, + kImageFile3DOType_RoomFormat = 3, + kImageFile3DOType_Font = 4 +}; + +struct ImageFile3DOPixelLookupTable { + uint16 pixelColor[256]; +}; + +class ImageFile3DO : public ImageFile { // Common::Array<ImageFrame> { +private: + static SherlockEngine *_vm; + + /** + * Load the data of the sprite + */ + void load(Common::SeekableReadStream &stream, bool isRoomData); + + /** + * convert pixel RGB values from RGB555 to RGB565 + */ + inline uint16 convertPixel(uint16 pixel3DO); + + /** + * Load 3DO cel file + */ + void load3DOCelFile(Common::SeekableReadStream &stream); + + /** + * Load 3DO cel data (room file format) + */ + void load3DOCelRoomData(Common::SeekableReadStream &stream); + + inline uint16 celGetBits(const byte *&dataPtr, byte bitCount, byte &dataBitsLeft); + + /** + * Decompress a single frame of a 3DO cel file + */ + void decompress3DOCelFrame(ImageFrame &frame, const byte *dataPtr, uint32 dataSize, byte bitsPerPixel, ImageFile3DOPixelLookupTable *pixelLookupTable); + + /** + * Load animation graphics file + */ + void loadAnimationFile(Common::SeekableReadStream &stream); + + /** + * Load Sherlock Holmes 3DO font file + */ + void loadFont(Common::SeekableReadStream &stream); + +public: + ImageFile3DO(const Common::String &name, ImageFile3DOType imageFile3DOType); + ImageFile3DO(Common::SeekableReadStream &stream, bool isRoomData = false); + ~ImageFile3DO(); + static void setVm(SherlockEngine *vm); +}; + +#define STREAMING_BUFFER_SIZE 65536 + +class StreamingImageFile { +private: + int _frameNumber; + Common::SeekableReadStream *_stream; + bool _compressed; + byte _buffer[STREAMING_BUFFER_SIZE]; +public: + ImageFrame _imageFrame; + + Common::Point _position; // Animation position + Common::Rect _oldBounds; // Bounds of previous frame + Common::Rect _removeBounds; // Remove area for just drawn frame + + int _flags; // Flags + int _scaleVal; // Specifies the scale amount + int _zPlacement; // Used by doBgAnim for determining Z order +public: + StreamingImageFile(); + ~StreamingImageFile(); + + /** + * Initialize reading of the specified stream + */ + void load(Common::SeekableReadStream *stream, bool compressed); + + /** + * Close the streamining image file + */ + void close(); + + /** + * Get the next frame of the file + */ + void getNextFrame(); + + /** + * Returns whether there are any remaining frames or not + */ + bool active() const { return _stream != nullptr && _stream->pos() < _stream->size(); } + + /** + * Return the current frame number + */ + int frameNumber() const { return _frameNumber; } +}; + +} // End of namespace Sherlock + +#endif |