swfdec/swfdec_as_types.h

   1 /* Swfdec
   2  * Copyright (C) 2007-2008 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 #ifndef _SWFDEC_AS_TYPES_H_
  21 #define _SWFDEC_AS_TYPES_H_
  22
  23 #include <glib-object.h>
  24 #include <swfdec/swfdec_as_string_value.h>
  25
  26 G_BEGIN_DECLS
  27
  28 /* fundamental types */
  29 typedef enum {
  30   SWFDEC_AS_TYPE_UNDEFINED = 0,
  31   SWFDEC_AS_TYPE_NULL = 1,
  32   SWFDEC_AS_TYPE_BOOLEAN = 2,
  33   SWFDEC_AS_TYPE_INT = 3, /* unimplemented, but reserved if someone wants it */
  34   SWFDEC_AS_TYPE_NUMBER = 4,
  35   SWFDEC_AS_TYPE_STRING = 5,
  36   SWFDEC_AS_TYPE_OBJECT = 6,
  37   SWFDEC_AS_TYPE_MOVIE = 7
  38 } SwfdecAsValueType;
  39
  40 typedef struct _SwfdecAsContext SwfdecAsContext;
  41 typedef struct _SwfdecAsDebugger SwfdecAsDebugger;
  42 typedef struct _SwfdecAsDoubleValue SwfdecAsDoubleValue;
  43 typedef struct _SwfdecAsFrame SwfdecAsFrame;
  44 typedef struct _SwfdecAsFunction SwfdecAsFunction;
  45 typedef struct _SwfdecAsGcable SwfdecAsGcable;
  46 typedef struct _SwfdecAsObject SwfdecAsObject;
  47 typedef struct _SwfdecAsRelay SwfdecAsRelay;
  48 typedef struct _SwfdecAsScope SwfdecAsScope;
  49 typedef struct _SwfdecAsStack SwfdecAsStack;
  50 typedef gsize SwfdecAsValue;
  51 typedef void (* SwfdecAsNative) (SwfdecAsContext *      context,
  52                                  SwfdecAsObject *       thisp,
  53                                  guint                  argc,
  54                                  SwfdecAsValue *        argv,
  55                                  SwfdecAsValue *        retval);
  56 typedef struct _SwfdecGcObject SwfdecGcObject;
  57 typedef struct _SwfdecScript SwfdecScript;
  58
  59
  60 /* IMPORTANT: a SwfdecAsValue memset to 0 is a valid undefined value */
  61 #define SWFDEC_AS_VALUE_TYPE_BITS (3)
  62 #define SWFDEC_AS_VALUE_TYPE_MASK ((1 << SWFDEC_AS_VALUE_TYPE_BITS) - 1)
  63 #define SWFDEC_AS_VALUE_VALUE_MASK (~SWFDEC_AS_VALUE_TYPE_MASK)
  64
  65 #define SWFDEC_AS_VALUE_GET_TYPE(val) (*(val) & SWFDEC_AS_VALUE_TYPE_MASK)
  66 #define SWFDEC_AS_VALUE_GET_VALUE(val) GSIZE_TO_POINTER (*(val) & SWFDEC_AS_VALUE_VALUE_MASK)
  67 #define SWFDEC_AS_VALUE_COMBINE(val, type) (GPOINTER_TO_SIZE (val) | type)
  68
  69 #define SWFDEC_AS_VALUE_UNDEFINED SWFDEC_AS_VALUE_COMBINE (NULL, SWFDEC_AS_TYPE_UNDEFINED)
  70 #define SWFDEC_AS_VALUE_IS_UNDEFINED(val) (SWFDEC_AS_VALUE_GET_TYPE (val) == SWFDEC_AS_TYPE_UNDEFINED)
  71 #define SWFDEC_AS_VALUE_SET_UNDEFINED(val) *(val) = SWFDEC_AS_VALUE_UNDEFINED
  72
  73 #define SWFDEC_AS_VALUE_FALSE SWFDEC_AS_VALUE_COMBINE(NULL, SWFDEC_AS_TYPE_BOOLEAN)
  74 #define SWFDEC_AS_VALUE_TRUE SWFDEC_AS_VALUE_COMBINE(GSIZE_TO_POINTER (1 << SWFDEC_AS_VALUE_TYPE_BITS), SWFDEC_AS_TYPE_BOOLEAN)
  75 #define SWFDEC_AS_VALUE_IS_BOOLEAN(val) (SWFDEC_AS_VALUE_GET_TYPE (val) == SWFDEC_AS_TYPE_BOOLEAN)
  76 #define SWFDEC_AS_VALUE_GET_BOOLEAN(val) (SWFDEC_AS_VALUE_GET_VALUE (val) != NULL)
  77 #define SWFDEC_AS_VALUE_FROM_BOOLEAN(b) (b ? SWFDEC_AS_VALUE_TRUE : SWFDEC_AS_VALUE_FALSE)
  78 #define SWFDEC_AS_VALUE_SET_BOOLEAN(val,b) G_STMT_START { \
  79   gboolean __tmp = (b); \
  80   g_assert (__tmp == TRUE || __tmp == FALSE); \
  81   *(val) = SWFDEC_AS_VALUE_FROM_BOOLEAN(__tmp); \
  82 } G_STMT_END
  83
  84 struct _SwfdecAsDoubleValue {
  85   SwfdecAsGcable *      next;
  86   double                number;
  87 };
  88
  89 #define SWFDEC_AS_VALUE_IS_NUMBER(val) (SWFDEC_AS_VALUE_GET_TYPE (val) == SWFDEC_AS_TYPE_NUMBER)
  90 #define SWFDEC_AS_VALUE_GET_NUMBER(val) (((SwfdecAsDoubleValue *) SWFDEC_AS_VALUE_GET_VALUE(val))->number)
  91
  92 #define SWFDEC_AS_VALUE_IS_STRING(val) (SWFDEC_AS_VALUE_GET_TYPE (val) == SWFDEC_AS_TYPE_STRING)
  93 #define SWFDEC_AS_VALUE_GET_STRING(val) (((SwfdecAsStringValue *) SWFDEC_AS_VALUE_GET_VALUE(val))->string)
  94 #define SWFDEC_AS_VALUE_FROM_STRING(s) SWFDEC_AS_VALUE_COMBINE (((guint8 *) (s) - G_STRUCT_OFFSET (SwfdecAsStringValue, string)), SWFDEC_AS_TYPE_STRING)
  95 #define SWFDEC_AS_VALUE_SET_STRING(val,s) G_STMT_START { \
  96   *(val) = SWFDEC_AS_VALUE_FROM_STRING (s); \
  97 } G_STMT_END
  98
  99 #define SWFDEC_AS_VALUE_NULL SWFDEC_AS_VALUE_COMBINE (NULL, SWFDEC_AS_TYPE_NULL)
 100 #define SWFDEC_AS_VALUE_IS_NULL(val) (SWFDEC_AS_VALUE_GET_TYPE (val) == SWFDEC_AS_TYPE_NULL)
 101 #define SWFDEC_AS_VALUE_SET_NULL(val) *(val) = SWFDEC_AS_VALUE_NULL
 102
 103 #define SWFDEC_AS_VALUE_IS_OBJECT(val) (SWFDEC_AS_VALUE_GET_TYPE (val) == SWFDEC_AS_TYPE_OBJECT)
 104 #define SWFDEC_AS_VALUE_GET_OBJECT(val) ((SwfdecAsObject *) SWFDEC_AS_VALUE_GET_VALUE (val))
 105 #define SWFDEC_AS_VALUE_FROM_OBJECT(o) SWFDEC_AS_VALUE_COMBINE (o, SWFDEC_AS_TYPE_OBJECT)
 106 #define SWFDEC_AS_VALUE_SET_OBJECT(val,o) G_STMT_START { \
 107   SwfdecAsObject *__o = (o); \
 108   g_assert (__o != NULL); \
 109   g_assert (!__o->movie); \
 110   *(val) = SWFDEC_AS_VALUE_FROM_OBJECT (__o); \
 111 } G_STMT_END
 112
 113 /* value setters */
 114 #define swfdec_as_value_set_integer(cx, val, i) swfdec_as_value_set_number((cx), (val), (int) (i))
 115 void            swfdec_as_value_set_number      (SwfdecAsContext *      context,
 116                                                  SwfdecAsValue *        value,
 117                                                  double                 number);
 118
 119 /* value conversion functions */
 120 gboolean        swfdec_as_value_to_boolean      (SwfdecAsContext *      context,
 121                                                  const SwfdecAsValue *  value);
 122 int             swfdec_as_value_to_integer      (SwfdecAsContext *      context,
 123                                                  const SwfdecAsValue *  value);
 124 double          swfdec_as_value_to_number       (SwfdecAsContext *      context,
 125                                                  const SwfdecAsValue *  value);
 126 SwfdecAsObject *swfdec_as_value_to_object       (SwfdecAsContext *      context,
 127                                                  const SwfdecAsValue *  value);
 128 void            swfdec_as_value_to_primitive    (SwfdecAsValue *        value);
 129 const char *    swfdec_as_value_to_string       (SwfdecAsContext *      context,
 130                                                  SwfdecAsValue          value);
 131
 132 /* special conversion functions */
 133 const char *    swfdec_as_integer_to_string     (SwfdecAsContext *      context,
 134                                                  int                    i);
 135 int             swfdec_as_double_to_integer     (double                 d);
 136 const char *    swfdec_as_double_to_string      (SwfdecAsContext *      context,
 137                                                  double                 d);
 138 const char *    swfdec_as_str_concat            (SwfdecAsContext *      cx,
 139                                                  const char *           s1,
 140                                                  const char *           s2);
 141
 142 /* variable get/set */
 143 void            swfdec_as_value_get_variable    (SwfdecAsContext *      cx,
 144                                                  const SwfdecAsValue *  val,
 145                                                  const char *           name,
 146                                                  SwfdecAsValue *        ret);
 147
 148
 149 G_END_DECLS
 150 #endif