libswfdec/swfdec_bits.h

   1 /* Swfdec
   2  * Copyright (C) 2003-2006 David Schleef <ds@schleef.org>
   3  *               2005-2006 Eric Anholt <eric@anholt.net>
   4  *                    2006 Benjamin Otte <otte@gnome.org>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  * Boston, MA  02110-1301  USA
  20  */
  21
  22 #ifndef __SWFDEC_BITS_H__
  23 #define __SWFDEC_BITS_H__
  24
  25 #include <cairo.h>
  26 #include <libswfdec/swfdec_color.h>
  27 #include <libswfdec/swfdec_buffer.h>
  28
  29 #define SWFDEC_TEXT_SCALE_FACTOR                (1024.0)
  30
  31 typedef struct _SwfdecBits SwfdecBits;
  32
  33 struct _SwfdecBits
  34 {
  35   SwfdecBuffer *buffer;
  36   unsigned char *ptr;
  37   unsigned int idx;
  38   unsigned char *end;
  39 };
  40
  41 void swfdec_bits_init (SwfdecBits *bits, SwfdecBuffer *buffer);
  42 unsigned int swfdec_bits_left (SwfdecBits *b);
  43 int swfdec_bits_getbit (SwfdecBits * b);
  44 unsigned int swfdec_bits_getbits (SwfdecBits * b, unsigned int n);
  45 unsigned int swfdec_bits_peekbits (SwfdecBits * b, unsigned int n);
  46 int swfdec_bits_getsbits (SwfdecBits * b, unsigned int n);
  47 unsigned int swfdec_bits_peek_u8 (SwfdecBits * b);
  48 unsigned int swfdec_bits_get_u8 (SwfdecBits * b);
  49 unsigned int swfdec_bits_get_u16 (SwfdecBits * b);
  50 int swfdec_bits_get_s16 (SwfdecBits * b);
  51 unsigned int swfdec_bits_get_be_u16 (SwfdecBits * b);
  52 unsigned int swfdec_bits_get_u32 (SwfdecBits * b);
  53 float swfdec_bits_get_float (SwfdecBits * b);
  54 double swfdec_bits_get_double (SwfdecBits * b);
  55 void swfdec_bits_syncbits (SwfdecBits * b);
  56
  57 void swfdec_bits_get_color_transform (SwfdecBits * bits,
  58     SwfdecColorTransform * ct);
  59 void swfdec_bits_get_transform (SwfdecBits * bits, SwfdecTransform *trans);
  60 void swfdec_bits_get_matrix (SwfdecBits * bits, cairo_matrix_t *matrix);
  61 const char *swfdec_bits_skip_string (SwfdecBits * bits);
  62 char *swfdec_bits_get_string (SwfdecBits * bits);
  63 char *swfdec_bits_get_string_length (SwfdecBits * bits, unsigned int len);
  64 unsigned int swfdec_bits_get_color (SwfdecBits * bits);
  65 unsigned int swfdec_bits_get_rgba (SwfdecBits * bits);
  66 SwfdecGradient *swfdec_bits_get_gradient (SwfdecBits * bits);
  67 SwfdecGradient *swfdec_bits_get_gradient_rgba (SwfdecBits * bits);
  68 SwfdecGradient *swfdec_bits_get_morph_gradient (SwfdecBits * bits);
  69 void swfdec_bits_get_rect (SwfdecBits * bits, SwfdecRect *rect);
  70 SwfdecBuffer *swfdec_bits_get_buffer (SwfdecBits *bits, int len);
  71
  72
  73 #endif