swfdec/swfdec_sprite.c

   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 #ifdef HAVE_CONFIG_H
  23 #include "config.h"
  24 #endif
  25 #include <string.h>
  26
  27 #include "swfdec_sprite.h"
  28 #include "swfdec_debug.h"
  29 #include "swfdec_movie.h"
  30 #include "swfdec_player_internal.h"
  31 #include "swfdec_script.h"
  32 #include "swfdec_sound.h"
  33 #include "swfdec_sprite_movie.h"
  34 #include "swfdec_swf_decoder.h"
  35 #include "swfdec_tag.h"
  36
  37 G_DEFINE_TYPE (SwfdecSprite, swfdec_sprite, SWFDEC_TYPE_GRAPHIC)
  38
  39 static void
  40 swfdec_sprite_dispose (GObject *object)
  41 {
  42   SwfdecSprite * sprite = SWFDEC_SPRITE (object);
  43   guint i;
  44
  45   if (sprite->frames) {
  46     for (i = 0; i < sprite->n_frames; i++) {
  47       g_slist_foreach (sprite->frames[i].labels, (GFunc) g_free, NULL);
  48       g_slist_free (sprite->frames[i].labels);
  49     }
  50     g_free(sprite->frames);
  51   }
  52   for (i = 0; i < sprite->actions->len; i++) {
  53     SwfdecSpriteAction *cur = &g_array_index (sprite->actions, SwfdecSpriteAction, i);
  54     if (cur->buffer)
  55       swfdec_buffer_unref (cur->buffer);
  56   }
  57   g_array_free (sprite->actions, TRUE);
  58   sprite->actions = NULL;
  59   if (sprite->init_action) {
  60     swfdec_script_unref (sprite->init_action);
  61     sprite->init_action = NULL;
  62   }
  63
  64   G_OBJECT_CLASS (swfdec_sprite_parent_class)->dispose (object);
  65 }
  66
  67 void
  68 swfdec_sprite_add_action (SwfdecSprite *sprite, guint tag, SwfdecBuffer *buffer)
  69 {
  70   SwfdecSpriteAction action;
  71
  72   action.tag = tag;
  73   action.buffer = buffer;
  74   g_array_append_val (sprite->actions, action);
  75 }
  76
  77 gboolean
  78 swfdec_sprite_get_action (SwfdecSprite *sprite, guint n, guint *tag, SwfdecBuffer **buffer)
  79 {
  80   SwfdecSpriteAction *action;
  81
  82   g_return_val_if_fail (SWFDEC_IS_SPRITE (sprite), FALSE);
  83   g_return_val_if_fail (tag != NULL, FALSE);
  84   g_return_val_if_fail (buffer != NULL, FALSE);
  85
  86   if (n >= sprite->actions->len)
  87     return FALSE;
  88   action = &g_array_index (sprite->actions, SwfdecSpriteAction, n);
  89   *tag = action->tag;
  90   *buffer = action->buffer;
  91   return TRUE;
  92 }
  93
  94 static void
  95 swfdec_sprite_class_init (SwfdecSpriteClass * g_class)
  96 {
  97   GObjectClass *object_class = G_OBJECT_CLASS (g_class);
  98   SwfdecGraphicClass *graphic_class = SWFDEC_GRAPHIC_CLASS (g_class);
  99
 100   object_class->dispose = swfdec_sprite_dispose;
 101
 102   graphic_class->movie_type = SWFDEC_TYPE_SPRITE_MOVIE;
 103 }
 104
 105 static void
 106 swfdec_sprite_init (SwfdecSprite * sprite)
 107 {
 108   sprite->actions = g_array_new (FALSE, FALSE, sizeof (SwfdecSpriteAction));
 109 }
 110
 111 void
 112 swfdec_sprite_set_n_frames (SwfdecSprite *sprite, guint n_frames,
 113     guint rate)
 114 {
 115   g_return_if_fail (SWFDEC_IS_SPRITE (sprite));
 116
 117   if (n_frames > 0) {
 118     sprite->frames = g_new0 (SwfdecSpriteFrame, n_frames);
 119     sprite->n_frames = n_frames;
 120   }
 121
 122   SWFDEC_LOG ("n_frames = %d", sprite->n_frames);
 123 }
 124
 125 int
 126 swfdec_sprite_get_frame (SwfdecSprite *sprite, const char *label)
 127 {
 128   guint i;
 129
 130   g_return_val_if_fail (SWFDEC_IS_SPRITE (sprite), -1);
 131   g_return_val_if_fail (label != NULL, -1);
 132
 133   for (i = 0; i < SWFDEC_SPRITE (sprite)->n_frames; i++) {
 134     SwfdecSpriteFrame *frame = &sprite->frames[i];
 135     GSList *iter;
 136
 137     for (iter = frame->labels; iter != NULL; iter = iter->next) {
 138       if (g_str_equal (iter->data, label))
 139         return i;
 140     }
 141   }
 142   return -1;
 143 }
 144