libswfdec/swfdec_image.h

   1 /* Swfdec
   2  * Copyright (C) 2003-2006 David Schleef <ds@schleef.org>
   3  *               2005-2006 Eric Anholt <eric@anholt.net>
   4  *               2006-2007 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 <libswfdec/swfdec_cached.h>
  27 #include <libswfdec/swfdec_decoder.h>
  28
  29 G_BEGIN_DECLS
  30 //typedef struct _SwfdecImage SwfdecImage;
  31 typedef struct _SwfdecImageClass SwfdecImageClass;
  32
  33 #define SWFDEC_TYPE_IMAGE                    (swfdec_image_get_type())
  34 #define SWFDEC_IS_IMAGE(obj)                 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), SWFDEC_TYPE_IMAGE))
  35 #define SWFDEC_IS_IMAGE_CLASS(klass)         (G_TYPE_CHECK_CLASS_TYPE ((klass), SWFDEC_TYPE_IMAGE))
  36 #define SWFDEC_IMAGE(obj)                    (G_TYPE_CHECK_INSTANCE_CAST ((obj), SWFDEC_TYPE_IMAGE, SwfdecImage))
  37 #define SWFDEC_IMAGE_CLASS(klass)            (G_TYPE_CHECK_CLASS_CAST ((klass), SWFDEC_TYPE_IMAGE, SwfdecImageClass))
  38
  39 typedef enum {
  40   SWFDEC_IMAGE_TYPE_UNKNOWN = 0,
  41   SWFDEC_IMAGE_TYPE_JPEG,
  42   SWFDEC_IMAGE_TYPE_JPEG2,
  43   SWFDEC_IMAGE_TYPE_JPEG3,
  44   SWFDEC_IMAGE_TYPE_LOSSLESS,
  45   SWFDEC_IMAGE_TYPE_LOSSLESS2,
  46 } SwfdecImageType;
  47
  48 struct _SwfdecImage {
  49   SwfdecCached          cached;
  50
  51   guint8 *              data;           /* image data in CAIRO_FORMAT_ARGB32 but NOT premultiplied */
  52   int                   width;
  53   int                   height;
  54   int                   rowstride;
  55   cairo_surface_t *     surface;        /* surface that owns the data pointer or NULL (doesn't always work) */
  56
  57   SwfdecImageType       type;
  58   SwfdecBuffer *        jpegtables;
  59   SwfdecBuffer *        raw_data;
  60 };
  61
  62 struct _SwfdecImageClass {
  63   SwfdecCachedClass     cached_class;
  64
  65 };
  66
  67 GType                   swfdec_image_get_type           (void);
  68
  69 cairo_surface_t *       swfdec_image_create_surface     (SwfdecImage *          image);
  70 cairo_surface_t *       swfdec_image_create_surface_transformed
  71                                                         (SwfdecImage *          image,
  72                                                          const SwfdecColorTransform *trans);
  73
  74 int swfdec_image_jpegtables (SwfdecSwfDecoder * s, guint tag);
  75 int tag_func_define_bits_jpeg (SwfdecSwfDecoder * s, guint tag);
  76 int tag_func_define_bits_jpeg_2 (SwfdecSwfDecoder * s, guint tag);
  77 int tag_func_define_bits_jpeg_3 (SwfdecSwfDecoder * s, guint tag);
  78 int tag_func_define_bits_lossless (SwfdecSwfDecoder * s, guint tag);
  79 int tag_func_define_bits_lossless_2 (SwfdecSwfDecoder * s, guint tag);
  80
  81 G_END_DECLS
  82 #endif