libswfdec/swfdec_video_movie.c

   1 /* Swfdec
   2  * Copyright (C) 2007 Benjamin Otte <otte@gnome.org>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301  USA
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "swfdec_video_movie.h"
  25 #include "swfdec_player_internal.h"
  26
  27 G_DEFINE_TYPE (SwfdecVideoMovie, swfdec_video_movie, SWFDEC_TYPE_MOVIE)
  28
  29 static void
  30 swfdec_video_movie_update_extents (SwfdecMovie *movie,
  31     SwfdecRect *extents)
  32 {
  33   SwfdecVideoMovie *video = SWFDEC_VIDEO_MOVIE (movie);
  34   SwfdecRect rect = { 0, 0,
  35     SWFDEC_TWIPS_SCALE_FACTOR * video->video->width,
  36     SWFDEC_TWIPS_SCALE_FACTOR * video->video->height };
  37
  38   swfdec_rect_union (extents, extents, &rect);
  39 }
  40
  41 static void
  42 swfdec_video_movie_render (SwfdecMovie *mov, cairo_t *cr,
  43     const SwfdecColorTransform *trans, const SwfdecRect *inval)
  44 {
  45   SwfdecVideoMovie *movie = SWFDEC_VIDEO_MOVIE (mov);
  46
  47   if (movie->image == NULL)
  48     return;
  49
  50   cairo_scale (cr,
  51       (mov->original_extents.x1 - mov->original_extents.x0) / movie->image_width,
  52       (mov->original_extents.y1 - mov->original_extents.y0) / movie->image_height);
  53   cairo_set_source_surface (cr, movie->image, 0.0, 0.0);
  54   cairo_paint (cr);
  55 }
  56
  57 static void
  58 swfdec_video_movie_unset_input (SwfdecVideoMovie *movie)
  59 {
  60   if (movie->input == NULL)
  61     return;
  62
  63   if (movie->input->disconnect)
  64     movie->input->disconnect (movie->input, movie);
  65   movie->input = NULL;
  66 }
  67
  68 static void
  69 swfdec_video_movie_dispose (GObject *object)
  70 {
  71   SwfdecVideoMovie *movie = SWFDEC_VIDEO_MOVIE (object);
  72
  73   swfdec_video_movie_unset_input (movie);
  74   if (movie->image) {
  75     cairo_surface_destroy (movie->image);
  76     movie->image = NULL;
  77   }
  78   g_object_unref (movie->video);
  79
  80   G_OBJECT_CLASS (swfdec_video_movie_parent_class)->dispose (object);
  81 }
  82
  83 static gboolean
  84 swfdec_video_movie_iterate_end (SwfdecMovie *mov)
  85 {
  86   SwfdecVideoMovie *movie = SWFDEC_VIDEO_MOVIE (mov);
  87
  88   if (!SWFDEC_MOVIE_CLASS (swfdec_video_movie_parent_class)->iterate_end (mov))
  89     return FALSE;
  90
  91   if (movie->input && movie->input->iterate) {
  92     movie->input->iterate (movie->input);
  93   }
  94
  95   return TRUE;
  96 }
  97
  98 static void
  99 swfdec_video_movie_init_movie (SwfdecMovie *movie)
 100 {
 101   SwfdecPlayer *player = SWFDEC_PLAYER (SWFDEC_AS_OBJECT (movie)->context);
 102
 103   swfdec_as_object_set_constructor (SWFDEC_AS_OBJECT (movie), player->Video);
 104 }
 105
 106 static void
 107 swfdec_video_movie_class_init (SwfdecVideoMovieClass * g_class)
 108 {
 109   GObjectClass *object_class = G_OBJECT_CLASS (g_class);
 110   SwfdecMovieClass *movie_class = SWFDEC_MOVIE_CLASS (g_class);
 111
 112   object_class->dispose = swfdec_video_movie_dispose;
 113
 114   movie_class->update_extents = swfdec_video_movie_update_extents;
 115   movie_class->render = swfdec_video_movie_render;
 116   movie_class->init_movie = swfdec_video_movie_init_movie;
 117   movie_class->iterate_end = swfdec_video_movie_iterate_end;
 118 }
 119
 120 static void
 121 swfdec_video_movie_init (SwfdecVideoMovie * video_movie)
 122 {
 123 }
 124
 125 void
 126 swfdec_video_movie_set_input (SwfdecVideoMovie *movie, SwfdecVideoMovieInput *input)
 127 {
 128   g_return_if_fail (SWFDEC_IS_VIDEO_MOVIE (movie));
 129
 130   swfdec_video_movie_unset_input (movie);
 131   movie->input = input;
 132   if (input == NULL)
 133     return;
 134   if (input->connect)
 135     input->connect (input, movie);
 136 }
 137
 138 void
 139 swfdec_video_movie_clear (SwfdecVideoMovie *movie)
 140 {
 141   g_return_if_fail (SWFDEC_IS_VIDEO_MOVIE (movie));
 142
 143   if (movie->image == NULL)
 144     return;
 145
 146   cairo_surface_destroy (movie->image);
 147   movie->image = NULL;
 148   swfdec_movie_invalidate (SWFDEC_MOVIE (movie));
 149 }
 150
 151 void
 152 swfdec_video_movie_new_image (SwfdecVideoMovie *movie, cairo_surface_t *image)
 153 {
 154   g_return_if_fail (SWFDEC_IS_VIDEO_MOVIE (movie));
 155   g_return_if_fail (image != NULL);
 156
 157   if (movie->image)
 158     cairo_surface_destroy (movie->image);
 159   cairo_surface_reference (image);
 160   movie->image = image;
 161   movie->image_width = cairo_image_surface_get_width (image);
 162   movie->image_height = cairo_image_surface_get_height (image);
 163   swfdec_movie_invalidate (SWFDEC_MOVIE (movie));
 164 }
 165