bitmap.h

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// Flash Plugin and Player
// Copyright (C) 1998 Olivier Debon
// 
// 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
// 
#ifndef _BITMAP_H_
#define _BITMAP_H_

struct MyErrorHandler {
        struct jpeg_error_mgr pub;
        jmp_buf setjmp_buffer;
};

class Bitmap : public Character {
 public:
        long             width;
        long             height;
        long             bpl;
        long             depth;

        unsigned char   *pixels;                // Array of Pixels
        Color           *colormap;      // Array of color definitions
        long             nbColors;

        unsigned char   *alpha_buf;     // Array of alpha values (no alpha if NULL)

        int              defLevel;

// Class Variables

        static int haveTables;
        static struct jpeg_decompress_struct jpegObject;
        static struct jpeg_source_mgr jpegSourceManager;
        static MyErrorHandler jpegErrorMgr;

public:
        Bitmap(long id, int level = 1);
        ~Bitmap();

        // JPEG handling methods
        int      buildFromJpegInterchangeData(unsigned char *stream, int alpha, long offset);   // Complete
        int      buildFromJpegAbbreviatedData(unsigned char *stream);   // Abbreviated

                // Class Method
        static int readJpegTables(unsigned char *stream);       // Tables Only

        // ZLIB handling methods
        int      buildFromZlibData(unsigned char *buffer,
                                        int width, int height,
                                        int format, int tableSize, int tableHasAlpha);

        long             getWidth();
        long             getHeight();
        Color           *getColormap(long *n);
        unsigned char   *getPixels();
};

#endif /* _BITMAP_H_ */

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