scummvm/engines/wintermute/dcscript.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

/*
 * This file is based on WME Lite.
 * http://dead-code.org/redir.php?target=wmelite
 * Copyright (c) 2011 Jan Nedoma
 */

#ifndef WINTERMUTE_DCSCRIPT_H
#define WINTERMUTE_DCSCRIPT_H

namespace WinterMute {

#define SCRIPT_MAGIC   0xDEC0ADDE
#define SCRIPT_VERSION 0x0102

// value types
typedef enum {
    VAL_NULL,
    VAL_STRING,
    VAL_INT,
    VAL_BOOL,
    VAL_FLOAT,
    VAL_OBJECT,
    VAL_NATIVE,
    VAL_VARIABLE_REF
} TValType;


// script states
typedef enum {
    SCRIPT_RUNNING, SCRIPT_WAITING, SCRIPT_SLEEPING, SCRIPT_FINISHED, SCRIPT_PERSISTENT, SCRIPT_ERROR, SCRIPT_PAUSED, SCRIPT_WAITING_SCRIPT, SCRIPT_THREAD_FINISHED
} TScriptState;

// opcodes
typedef enum {
    II_DEF_VAR = 0,
    II_DEF_GLOB_VAR,
    II_RET,
    II_RET_EVENT,
    II_CALL,
    II_CALL_BY_EXP,
    II_EXTERNAL_CALL,
    II_SCOPE,
    II_CORRECT_STACK,
    II_CREATE_OBJECT,
    II_POP_EMPTY,
    II_PUSH_VAR,
    II_PUSH_VAR_REF,
    II_POP_VAR,
    II_PUSH_VAR_THIS, // push current this on stack
    II_PUSH_INT,
    II_PUSH_BOOL,
    II_PUSH_FLOAT,
    II_PUSH_STRING,
    II_PUSH_NULL,
    II_PUSH_THIS_FROM_STACK,
    II_PUSH_THIS,
    II_POP_THIS,
    II_PUSH_BY_EXP,
    II_POP_BY_EXP,
    II_JMP,
    II_JMP_FALSE,
    II_ADD,
    II_SUB,
    II_MUL,
    II_DIV,
    II_MODULO,
    II_NOT,
    II_AND,
    II_OR,
    II_CMP_EQ,
    II_CMP_NE,
    II_CMP_L,
    II_CMP_G,
    II_CMP_LE,
    II_CMP_GE,
    II_CMP_STRICT_EQ,
    II_CMP_STRICT_NE,
    II_DBG_LINE,
    II_POP_REG1,
    II_PUSH_REG1,
    II_DEF_CONST_VAR
} TInstruction;

// external data types
typedef enum {
    TYPE_VOID = 0,
    TYPE_BOOL,
    TYPE_LONG,
    TYPE_BYTE,
    TYPE_STRING,
    TYPE_FLOAT,
    TYPE_DOUBLE,
    TYPE_MEMBUFFER
} TExternalType;


// call types
typedef enum {
    CALL_STDCALL = 0,
    CALL_CDECL,
    CALL_THISCALL
} TCallType;

// element types
typedef enum {
    ELEMENT_STRING = 0
} TElementType;



// compiler interface
typedef byte *(WINAPI DLL_LOAD_FILE)(void *Data, char *Filename, uint32 *Size);
typedef void (WINAPI DLL_CLOSE_FILE)(void *Data, byte *Buffer);
typedef void (WINAPI DLL_ADD_ERROR)(void *Data, int Line, char *Text);
typedef void (WINAPI DLL_PARSE_ELEMENT)(void *Data, int Line, int Type, void *ElementData);

typedef struct {
	DLL_LOAD_FILE *Dll_LoadFile;
	DLL_CLOSE_FILE *Dll_CloseFile;
	DLL_ADD_ERROR *Dll_AddError;
	DLL_PARSE_ELEMENT *Dll_ParseElement;
} CALLBACKS;

} // end of namespace WinterMute

#endif