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Diffstat (limited to 'graphics/decoders/pict.h')
-rw-r--r-- | graphics/decoders/pict.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/graphics/decoders/pict.h b/graphics/decoders/pict.h new file mode 100644 index 0000000000..6f0d86c7a1 --- /dev/null +++ b/graphics/decoders/pict.h @@ -0,0 +1,140 @@ +/* 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. + * + */ + +/** + * @file + * Image decoder used in engines: + * - mohawk + * - pegasus + * - sci + */ + +#ifndef GRAPHICS_PICT_H +#define GRAPHICS_PICT_H + +#include "common/array.h" +#include "common/rect.h" +#include "common/scummsys.h" + +#include "graphics/decoders/image_decoder.h" +#include "graphics/pixelformat.h" + +namespace Common { +class SeekableReadStream; +} + +namespace Graphics { + +struct Surface; + +#define DECLARE_OPCODE(x) void x(Common::SeekableReadStream &stream) + +class PICTDecoder : public ImageDecoder { +public: + PICTDecoder(); + ~PICTDecoder(); + + // ImageDecoder API + bool loadStream(Common::SeekableReadStream &stream); + void destroy(); + const Surface *getSurface() const { return _outputSurface; } + const byte *getPalette() const { return _palette; } + uint16 getPaletteColorCount() const { return _paletteColorCount; } + + struct PixMap { + uint32 baseAddr; + uint16 rowBytes; + Common::Rect bounds; + uint16 pmVersion; + uint16 packType; + uint32 packSize; + uint32 hRes; + uint32 vRes; + uint16 pixelType; + uint16 pixelSize; + uint16 cmpCount; + uint16 cmpSize; + uint32 planeBytes; + uint32 pmTable; + uint32 pmReserved; + }; + + static PixMap readPixMap(Common::SeekableReadStream &stream, bool hasBaseAddr = true); + +private: + Common::Rect _imageRect; + byte _palette[256 * 3]; + uint16 _paletteColorCount; + Graphics::Surface *_outputSurface; + bool _continueParsing; + + // Utility Functions + void unpackBitsRect(Common::SeekableReadStream &stream, bool withPalette); + void unpackBitsLine(byte *out, uint32 length, Common::SeekableReadStream *stream, byte bitsPerPixel, byte bytesPerPixel); + void skipBitsRect(Common::SeekableReadStream &stream, bool withPalette); + void decodeCompressedQuickTime(Common::SeekableReadStream &stream); + void outputPixelBuffer(byte *&out, byte value, byte bitsPerPixel); + + // Opcodes + typedef void (PICTDecoder::*OpcodeProcPICT)(Common::SeekableReadStream &stream); + struct PICTOpcode { + PICTOpcode() { op = 0; proc = 0; desc = 0; } + PICTOpcode(uint16 o, OpcodeProcPICT p, const char *d) { op = o; proc = p; desc = d; } + uint16 op; + OpcodeProcPICT proc; + const char *desc; + }; + Common::Array<PICTOpcode> _opcodes; + + // Common Opcodes + void setupOpcodesCommon(); + DECLARE_OPCODE(o_nop); + DECLARE_OPCODE(o_clip); + DECLARE_OPCODE(o_txFont); + DECLARE_OPCODE(o_txFace); + DECLARE_OPCODE(o_pnSize); + DECLARE_OPCODE(o_txSize); + DECLARE_OPCODE(o_txRatio); + DECLARE_OPCODE(o_versionOp); + DECLARE_OPCODE(o_longText); + DECLARE_OPCODE(o_longComment); + DECLARE_OPCODE(o_opEndPic); + DECLARE_OPCODE(o_headerOp); + + // Regular-mode Opcodes + void setupOpcodesNormal(); + DECLARE_OPCODE(on_packBitsRect); + DECLARE_OPCODE(on_directBitsRect); + DECLARE_OPCODE(on_compressedQuickTime); + + // QuickTime-mode Opcodes + void setupOpcodesQuickTime(); + DECLARE_OPCODE(oq_packBitsRect); + DECLARE_OPCODE(oq_directBitsRect); + DECLARE_OPCODE(oq_compressedQuickTime); +}; + +#undef DECLARE_OPCODE + +} // End of namespace Graphics + +#endif |