fad.actions.h

嵌入式linux环境下的一个FLASH播放器（支持FLASH7.0以下版本）

/**
 * libFAD is the legal property of its developers, whose names are too numerous
 * to list here.  Please refer to the COPYRIGHT file distributed with this
 * source distribution.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * 
 * $Id: fad.actions.h,v 1.5 2006/02/25 02:47:23 wrxzzj Exp $
 */
#ifndef __FAD_ACTIONS_H
#define __FAD_ACTIONS_H
#include "fad.h"

#define STACK_CHUNK_MAX  512

enum {
  FAD_ACTIONCODE_ID_START,
  FAD_ACTION3_NEXT_FRAME = 0x04,
  FAD_ACTION3_PREV_FRAME = 0x05,
  FAD_ACTION3_PLAY = 0x06,
  FAD_ACTION3_STOP = 0x07,
  FAD_ACTION3_TOGGLE_QUALITY = 0x08,
  FAD_ACTION3_STOP_SOUNDS = 0x09,
  FAD_ACTION4_ADD = 0x0a,
  FAD_ACTION4_SUBTRACT = 0x0b,
  FAD_ACTION4_MULTIPLY = 0x0c,
  FAD_ACTION4_DIVIDE = 0x0d,
  FAD_ACTION4_EQUALS = 0x0e,
  FAD_ACTION4_LESS = 0x0f,
  FAD_ACTION4_AND = 0x10,
  FAD_ACTION4_OR = 0x11,
  FAD_ACTION4_NOT = 0x12,
  FAD_ACTION4_STRING_EQUALS = 0x13,
  FAD_ACTION4_STRING_LENGTH = 0x14,
  FAD_ACTION4_STRING_EXTRACT = 0x15,
  FAD_ACTION4_POP = 0x17,
  FAD_ACTION4_TO_INTEGER = 0x18,
  FAD_ACTION4_GET_VARIABLE = 0x1c,
  FAD_ACTION4_SET_VARIABLE = 0x1d,
  FAD_ACTION4_SET_TARGET2 = 0x20,
  FAD_ACTION4_STRING_ADD = 0x21,
  FAD_ACTION4_GET_PROPERTY = 0x22,
  FAD_ACTION4_SET_PROPERTY = 0x23,
  FAD_ACTION4_CLONE_SPRITE = 0x24,
  FAD_ACTION4_REMOVE_SPRITE = 0x25,
  FAD_ACTION4_TRACE = 0x26,
  FAD_ACTION4_START_DRAG = 0x27,
  FAD_ACTION4_END_DRAG = 0x28,
  FAD_ACTION4_STRING_LESS = 0x29,
  FAD_ACTION7_THROW = 0x2a,
  FAD_ACTION7_CASTOP = 0x2b,
  FAD_ACTION7_IMPLEMENTSOP = 0x2c,
  FAD_ACTION4_RANDOM_NUMBER = 0x30,
  FAD_ACTION4_MBSTRING_LENGTH = 0x31,
  FAD_ACTION4_CHAR_TO_ASCII = 0x32,
  FAD_ACTION4_ASCII_TO_CHAR = 0x33,
  FAD_ACTION4_GET_TIME = 0x34,
  FAD_ACTION4_MBSTRING_EXTRACT = 0x35,
  FAD_ACTION4_MBCHAR_TO_ASCII = 0x36,
  FAD_ACTION4_MBASCII_TO_CHAR = 0x37,
  FAD_ACTION5_DELETE = 0x3a,
  FAD_ACTION5_DELETE2 = 0x3b,
  FAD_ACTION5_DEFINE_LOCAL = 0x3c,
  FAD_ACTION5_CALL_FUNCTION = 0x3d,
  FAD_ACTION5_RETURN = 0x3e,
  FAD_ACTION5_MODULO = 0x3f,
  FAD_ACTION5_NEW_OBJECT = 0x40,
  FAD_ACTION5_DEFINE_LOCAL2 = 0x41,
  FAD_ACTION5_INIT_ARRAY = 0x42,
  FAD_ACTION5_INIT_OBJECT = 0x43,
  FAD_ACTION5_TYPEOF = 0x44,
  FAD_ACTION5_TARGET_PATH = 0x45,
  FAD_ACTION5_ENUMERATE = 0x46,
  FAD_ACTION5_ADD2 = 0x47,
  FAD_ACTION5_LESS2 = 0x48,
  FAD_ACTION5_EQUALS2 = 0x49,
  FAD_ACTION5_TO_NUMBER = 0x4a,
  FAD_ACTION5_TO_STRING = 0x4b,
  FAD_ACTION5_PUSH_DUPLICATE = 0x4c,
  FAD_ACTION5_STACK_SWAP = 0x4d,
  FAD_ACTION5_GET_MEMBER = 0x4e,
  FAD_ACTION5_SET_MEMBER = 0x4f,
  FAD_ACTION5_INCREMENT = 0x50,
  FAD_ACTION5_DECREMENT = 0x51,
  FAD_ACTION5_CALL_METHOD = 0x52,
  FAD_ACTION5_NEW_METHOD = 0x53,
  FAD_ACTION6_INSTANCEOF = 0x54,
  FAD_ACTION6_ENUMERATE2 = 0x55,
  FAD_ACTION5_BIT_AND = 0x60,
  FAD_ACTION5_BIT_OR = 0x61,
  FAD_ACTION5_BIT_XOR = 0x62,
  FAD_ACTION5_BIT_LSHIFT = 0x63,
  FAD_ACTION5_BIT_RSHIFT = 0x64,
  FAD_ACTION5_BIT_URSHIFT = 0x65,
  FAD_ACTION6_STRICT_EGUALS = 0x66,
  FAD_ACTION6_GREATER = 0x67,
  FAD_ACTION6_STRING_CREATER = 0x68,
  FAD_ACTION7_EXTENDS = 0x69,
  FAD_ACTION3_GOTO_FRAME = 0x81,
  FAD_ACTION3_GET_URL = 0x83,
  FAD_ACTION5_STORE_REGISTER = 0x87,
  FAD_ACTION5_CONSTANT_POOL = 0x88,
  FAD_ACTION3_WAITFOR_FRAME = 0x8a,
  FAD_ACTION3_SET_TARGET = 0x8b,
  FAD_ACTION3_GOTO_LABEL = 0x8c,
  FAD_ACTION4_WAITFOR_FRAME2 = 0x8d,
  FAD_ACTION7_DEFINE_FUNCTION2 = 0x8e,
  FAD_ACTION7_TRY = 0x8f,
  FAD_ACTION5_WITH = 0x94,
  FAD_ACTION4_PUSH = 0x96,
  FAD_ACTION4_JUMP = 0x99,
  FAD_ACTION4_GET_URL2 = 0x9a,
  FAD_ACTION5_DEFINE_FUNCTION = 0x9b,
  FAD_ACTION4_IF = 0x9d,
  FAD_ACTION4_CALL = 0x9e,
  FAD_ACTION4_GOTO_FRAME2 = 0x9f,
  FAD_ACTIONCODE_ID_END
};

enum {
  AS2_TYPE_STRING = 0,
  AS2_TYPE_FLOAT = 1,
  AS2_TYPE_REGISTERNUMBER = 4,
  AS2_TYPE_BOOLEAN = 5,
  AS2_TYPE_DOUBLE = 6,
  AS2_TYPE_INTEGER = 7,
  AS2_TYPE_CONSTANT8 = 8,
  AS2_TYPE_CONSTANT16 = 9
};

typedef struct {
  u8_t type;
  union {
    char*  str;
    float  f;
    u8_t   reg;
    u8_t   b;
    double d;
    u32_t  i;
    u8_t   c8;
    u16_t  c16;
  } val;
} as_object_t;

typedef struct _fad_stack_chunk fad_stack_chunk_t;
struct _fad_stack_chunk {
  as_object_t objs[STACK_CHUNK_MAX];
  fad_stack_chunk_t *next, *prev;
};

typedef struct {
  s32_t top;
  fad_stack_chunk_t *hdr, *curr;
} fad_actions_stack_t;

typedef struct {
  /**actions bytecode stream pointer*/
  bits_t *bc;
  /**current bytecode program counter*/
  u32_t pc;

  /**FAD frame pointer*/
  fad_frame_t *frame;
  /**FAD stream pointer*/
  fad_stream_t *stream;

  /**actionscript2 data stack, support push/pop*/
  fad_actions_stack_t fas;
} fad_actions_context_t;

void fad_actions_context_init(fad_actions_context_t *fac, fad_frame_t *frame, fad_stream_t *stream);

void fad_actions_context_finish(fad_actions_context_t *fac);

s32_t action_script_decode(fad_frame_t* frame, fad_stream_t* s);

void  action_script_exec(fad_actions_context_t *fac, u8_t *asr);
#endif