libswfdec/swfdec_sprite.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_SPRITE_H_
  23 #define _SWFDEC_SPRITE_H_
  24
  25 #include <libswfdec/swfdec_color.h>
  26 #include <libswfdec/swfdec_event.h>
  27 #include <libswfdec/swfdec_graphic.h>
  28 #include <libswfdec/swfdec_types.h>
  29
  30 G_BEGIN_DECLS
  31
  32 typedef struct _SwfdecSpriteClass SwfdecSpriteClass;
  33 typedef struct _SwfdecSpriteAction SwfdecSpriteAction;
  34 typedef struct _SwfdecExport SwfdecExport;
  35
  36 /* FIXME: It might make sense to event a SwfdecActionBuffer - a subclass of
  37  * SwfdecBuffer that carries around a the tag.
  38  * It might also make more sense to not parse the file into buffers at all
  39  * and operate on the memory directly.
  40  */
  41 struct _SwfdecSpriteAction {
  42   guint                         tag;    /* the data tag (see swfdec_tag.h) */
  43   SwfdecBuffer *                buffer; /* the buffer for this data (can be NULL) */
  44 };
  45
  46 #define SWFDEC_TYPE_SPRITE                    (swfdec_sprite_get_type())
  47 #define SWFDEC_IS_SPRITE(obj)                 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), SWFDEC_TYPE_SPRITE))
  48 #define SWFDEC_IS_SPRITE_CLASS(klass)         (G_TYPE_CHECK_CLASS_TYPE ((klass), SWFDEC_TYPE_SPRITE))
  49 #define SWFDEC_SPRITE(obj)                    (G_TYPE_CHECK_INSTANCE_CAST ((obj), SWFDEC_TYPE_SPRITE, SwfdecSprite))
  50 #define SWFDEC_SPRITE_CLASS(klass)            (G_TYPE_CHECK_CLASS_CAST ((klass), SWFDEC_TYPE_SPRITE, SwfdecSpriteClass))
  51
  52 struct _SwfdecSpriteFrame
  53 {
  54   char *label;                          /* name of the frame for "GotoLabel" */
  55
  56   /* sound */
  57   SwfdecSound *sound_head;              /* sound head for this frame */
  58   int sound_skip;                       /* samples to skip - maybe even backwards */
  59   SwfdecBuffer *sound_block;            /* sound chunk to play here or NULL for none */
  60   guint sound_samples;                  /* number of samples in this frame */
  61   GSList *sound;                        /* list of SwfdecSoundChunk events to start playing here */
  62 };
  63
  64 struct _SwfdecSprite
  65 {
  66   SwfdecGraphic         graphic;
  67
  68   SwfdecSpriteFrame *   frames;         /* the n_frames different frames */
  69   guint                 n_frames;       /* number of frames in this sprite */
  70   SwfdecScript *        init_action;    /* action to run when initializing this sprite */
  71   GArray *              actions;        /* SwfdecSpriteAction in execution order */
  72
  73   /* parse state */
  74   guint                 parse_frame;    /* frame we're currently parsing. == n_frames if done parsing */
  75 };
  76
  77 struct _SwfdecSpriteClass
  78 {
  79   SwfdecGraphicClass    graphic_class;
  80 };
  81
  82 GType swfdec_sprite_get_type (void);
  83
  84 int tag_func_define_sprite (SwfdecSwfDecoder * s, guint tag);
  85 void swfdec_sprite_add_sound_chunk (SwfdecSprite * sprite, guint frame,
  86     SwfdecBuffer * chunk, int skip, guint n_samples);
  87 void swfdec_sprite_set_n_frames (SwfdecSprite *sprite, guint n_frames, guint rate);
  88 void swfdec_sprite_add_action (SwfdecSprite * sprite, guint tag, SwfdecBuffer *buffer);
  89 gboolean        swfdec_sprite_get_action        (SwfdecSprite *         sprite,
  90                                                  guint                  n,
  91                                                  guint *                tag,
  92                                                  SwfdecBuffer **        buffer);
  93 int             swfdec_sprite_get_frame         (SwfdecSprite *         sprite,
  94                                                  const char *           label);
  95
  96 SwfdecContent *swfdec_content_new (int depth);
  97 void swfdec_content_free (SwfdecContent *content);
  98
  99 int tag_func_set_background_color (SwfdecSwfDecoder * s, guint tag);
 100
 101
 102 G_END_DECLS
 103 #endif