swfdec/swfdec_image.h

   1 /* Swfdec
   2  * Copyright (C) 2003-2006 David Schleef <ds@schleef.org>
   3  *               2005-2006 Eric Anholt <eric@anholt.net>
   4  *               2006-2008 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_IMAGE_H_
  23 #define _SWFDEC_IMAGE_H_
  24
  25 #include <cairo.h>
  26 #include <swfdec/swfdec_character.h>
  27 #include <swfdec/swfdec_decoder.h>
  28
  29 G_BEGIN_DECLS
  30
  31 //typedef struct _SwfdecImage SwfdecImage;
  32 typedef struct _SwfdecImageClass SwfdecImageClass;
  33
  34 #define SWFDEC_TYPE_IMAGE                    (swfdec_image_get_type())
  35 #define SWFDEC_IS_IMAGE(obj)                 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), SWFDEC_TYPE_IMAGE))
  36 #define SWFDEC_IS_IMAGE_CLASS(klass)         (G_TYPE_CHECK_CLASS_TYPE ((klass), SWFDEC_TYPE_IMAGE))
  37 #define SWFDEC_IMAGE(obj)                    (G_TYPE_CHECK_INSTANCE_CAST ((obj), SWFDEC_TYPE_IMAGE, SwfdecImage))
  38 #define SWFDEC_IMAGE_CLASS(klass)            (G_TYPE_CHECK_CLASS_CAST ((klass), SWFDEC_TYPE_IMAGE, SwfdecImageClass))
  39
  40 typedef enum {
  41   SWFDEC_IMAGE_TYPE_UNKNOWN = 0,
  42   SWFDEC_IMAGE_TYPE_JPEG,
  43   SWFDEC_IMAGE_TYPE_JPEG2,
  44   SWFDEC_IMAGE_TYPE_JPEG3,
  45   SWFDEC_IMAGE_TYPE_LOSSLESS,
  46   SWFDEC_IMAGE_TYPE_LOSSLESS2,
  47   /* those can only be created by loading from files */
  48   SWFDEC_IMAGE_TYPE_PNG
  49 } SwfdecImageType;
  50
  51 struct _SwfdecImage {
  52   SwfdecCharacter       character;
  53
  54   /* width * height * 4 must fit into a guint */
  55   guint                 width;          /* width of image or 0 if not known yet */
  56   guint                 height;         /* height of image or 0 if not known yet */
  57
  58   SwfdecImageType       type;
  59   SwfdecBuffer *        jpegtables;
  60   SwfdecBuffer *        raw_data;
  61 };
  62
  63 struct _SwfdecImageClass {
  64   SwfdecCharacterClass  character_class;
  65 };
  66
  67 GType                   swfdec_image_get_type           (void);
  68
  69 SwfdecImageType         swfdec_image_detect             (const guint8 *         data);
  70 SwfdecImage *           swfdec_image_new                (SwfdecBuffer *         buffer);
  71 cairo_surface_t *       swfdec_image_create_surface     (SwfdecImage *          image,
  72                                                          SwfdecRenderer *       renderer);
  73 cairo_surface_t *       swfdec_image_create_surface_transformed
  74                                                         (SwfdecImage *          image,
  75                                                          SwfdecRenderer *       renderer,
  76                                                          const SwfdecColorTransform *trans);
  77
  78 int swfdec_image_jpegtables (SwfdecSwfDecoder * s, guint tag);
  79 int tag_func_define_bits_jpeg (SwfdecSwfDecoder * s, guint tag);
  80 int tag_func_define_bits_jpeg_2 (SwfdecSwfDecoder * s, guint tag);
  81 int tag_func_define_bits_jpeg_3 (SwfdecSwfDecoder * s, guint tag);
  82 int tag_func_define_bits_lossless (SwfdecSwfDecoder * s, guint tag);
  83 int tag_func_define_bits_lossless_2 (SwfdecSwfDecoder * s, guint tag);
  84
  85 G_END_DECLS
  86 #endif