swfdec/swfdec_color_as.c

   1 /* Swfdec
   2  * Copyright (C) 2006-2007 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_as_context.h"
  25 #include "swfdec_as_native_function.h"
  26 #include "swfdec_as_strings.h"
  27 #include "swfdec_debug.h"
  28 #include "swfdec_internal.h"
  29 #include "swfdec_as_internal.h"
  30 #include "swfdec_movie.h"
  31
  32 /*** AS CODE ***/
  33
  34 static SwfdecMovie *
  35 swfdec_movie_color_get_movie (SwfdecAsObject *object)
  36 {
  37   SwfdecAsValue val;
  38   SwfdecAsObject *target;
  39
  40   if (object == NULL)
  41     return NULL;
  42
  43   swfdec_as_object_get_variable (object, SWFDEC_AS_STR_target, &val);
  44   if (!SWFDEC_AS_VALUE_IS_OBJECT (&val))
  45     return NULL;
  46
  47   target = SWFDEC_AS_VALUE_GET_OBJECT (&val);
  48   if (!SWFDEC_IS_MOVIE (target))
  49     return NULL;
  50
  51   return SWFDEC_MOVIE (target);
  52 }
  53
  54 SWFDEC_AS_NATIVE (700, 2, swfdec_movie_color_getRGB)
  55 void
  56 swfdec_movie_color_getRGB (SwfdecAsContext *cx, SwfdecAsObject *obj,
  57     guint argc, SwfdecAsValue *argv, SwfdecAsValue *ret)
  58 {
  59   int result;
  60   SwfdecMovie *movie;
  61
  62   movie = swfdec_movie_color_get_movie (obj);
  63
  64   if (movie == NULL)
  65     return;
  66
  67   result = (movie->color_transform.rb << 16) |
  68            ((movie->color_transform.gb % 256) << 8) |
  69            (movie->color_transform.bb % 256);
  70   SWFDEC_AS_VALUE_SET_INT (ret, result);
  71 }
  72
  73 static void
  74 add_variable (SwfdecAsObject *obj, const char *name, double value)
  75 {
  76   SwfdecAsValue val;
  77
  78   SWFDEC_AS_VALUE_SET_NUMBER (&val, value);
  79   swfdec_as_object_set_variable (obj, name, &val);
  80 }
  81
  82 SWFDEC_AS_NATIVE (700, 3, swfdec_movie_color_getTransform)
  83 void
  84 swfdec_movie_color_getTransform (SwfdecAsContext *cx, SwfdecAsObject *obj,
  85     guint argc, SwfdecAsValue *argv, SwfdecAsValue *rval)
  86 {
  87   SwfdecAsObject *ret;
  88   SwfdecMovie *movie;
  89
  90   movie = swfdec_movie_color_get_movie (obj);
  91
  92   if (movie == NULL)
  93     return;
  94
  95   ret = swfdec_as_object_new (cx);
  96
  97   add_variable (ret, SWFDEC_AS_STR_ra, movie->color_transform.ra * 100.0 / 256.0);
  98   add_variable (ret, SWFDEC_AS_STR_ga, movie->color_transform.ga * 100.0 / 256.0);
  99   add_variable (ret, SWFDEC_AS_STR_ba, movie->color_transform.ba * 100.0 / 256.0);
 100   add_variable (ret, SWFDEC_AS_STR_aa, movie->color_transform.aa * 100.0 / 256.0);
 101   add_variable (ret, SWFDEC_AS_STR_rb, movie->color_transform.rb);
 102   add_variable (ret, SWFDEC_AS_STR_gb, movie->color_transform.gb);
 103   add_variable (ret, SWFDEC_AS_STR_bb, movie->color_transform.bb);
 104   add_variable (ret, SWFDEC_AS_STR_ab, movie->color_transform.ab);
 105   SWFDEC_AS_VALUE_SET_OBJECT (rval, ret);
 106 }
 107
 108 SWFDEC_AS_NATIVE (700, 0, swfdec_movie_color_setRGB)
 109 void
 110 swfdec_movie_color_setRGB (SwfdecAsContext *cx, SwfdecAsObject *obj,
 111     guint argc, SwfdecAsValue *argv, SwfdecAsValue *rval)
 112 {
 113   guint color;
 114   SwfdecMovie *movie;
 115
 116   if (argc < 1)
 117     return;
 118
 119   movie = swfdec_movie_color_get_movie (obj);
 120
 121   if (movie == NULL)
 122     return;
 123
 124   color = swfdec_as_value_to_integer (cx, &argv[0]);
 125
 126   movie->color_transform.ra = 0;
 127   movie->color_transform.rb = (color & 0xFF0000) >> 16;
 128   movie->color_transform.ga = 0;
 129   movie->color_transform.gb = (color & 0xFF00) >> 8;
 130   movie->color_transform.ba = 0;
 131   movie->color_transform.bb = color & 0xFF;
 132   swfdec_movie_invalidate_last (movie);
 133 }
 134
 135 static void
 136 parse_property (SwfdecAsObject *obj, const char *name, int *target, gboolean scale)
 137 {
 138   SwfdecAsValue val;
 139   double d;
 140
 141   if (!swfdec_as_object_get_variable (obj, name, &val))
 142     return;
 143   d = swfdec_as_value_to_number (swfdec_gc_object_get_context (obj), &val);
 144   if (scale) {
 145     *target = d * 256.0 / 100.0;
 146   } else {
 147     *target = d;
 148   }
 149 }
 150
 151 SWFDEC_AS_NATIVE (700, 1, swfdec_movie_color_setTransform)
 152 void
 153 swfdec_movie_color_setTransform (SwfdecAsContext *cx, SwfdecAsObject *obj,
 154     guint argc, SwfdecAsValue *argv, SwfdecAsValue *rval)
 155 {
 156   SwfdecAsObject *parse;
 157   SwfdecMovie *movie;
 158
 159   if (argc < 1)
 160     return;
 161
 162   movie = swfdec_movie_color_get_movie (obj);
 163
 164   if (movie == NULL)
 165     return;
 166
 167   if (!SWFDEC_AS_VALUE_IS_OBJECT (&argv[0]))
 168     return;
 169   parse = SWFDEC_AS_VALUE_GET_OBJECT (&argv[0]);
 170   parse_property (parse, SWFDEC_AS_STR_ra, &movie->color_transform.ra, TRUE);
 171   parse_property (parse, SWFDEC_AS_STR_ga, &movie->color_transform.ga, TRUE);
 172   parse_property (parse, SWFDEC_AS_STR_ba, &movie->color_transform.ba, TRUE);
 173   parse_property (parse, SWFDEC_AS_STR_aa, &movie->color_transform.aa, TRUE);
 174   parse_property (parse, SWFDEC_AS_STR_rb, &movie->color_transform.rb, FALSE);
 175   parse_property (parse, SWFDEC_AS_STR_gb, &movie->color_transform.gb, FALSE);
 176   parse_property (parse, SWFDEC_AS_STR_bb, &movie->color_transform.bb, FALSE);
 177   parse_property (parse, SWFDEC_AS_STR_ab, &movie->color_transform.ab, FALSE);
 178   swfdec_movie_invalidate_last (movie);
 179 }