/* DE1: $Id: dd_pinit.c 3019 2006-04-08 00:12:59Z danij $
 * Copyright (C) 2003, 2004 Jaakko Keränen <jaakko.keranen@iki.fi>
 *
 * 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: http://www.opensource.org/
 */

/*
 * dd_pinit.c: Portable Engine Initialization
 *
 * Platform independent routines for initializing the engine.
 */

// HEADER FILES ------------------------------------------------------------

#ifdef WIN32
#  define WIN32_LEAN_AND_MEAN
#  include <windows.h>
#endif

#include <stdarg.h>

#include "de_base.h"
#include "de_console.h"
#include "de_system.h"
#include "de_play.h"
#include "de_refresh.h"
#include "de_network.h"
#include "de_misc.h"

#include "def_main.h"

// MACROS ------------------------------------------------------------------

// TYPES -------------------------------------------------------------------

// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------

// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------

// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------

// EXTERNAL DATA DECLARATIONS ----------------------------------------------

// PUBLIC DATA DEFINITIONS -------------------------------------------------

/*
 * The game imports and exports.
 */
game_import_t __gi;
game_export_t __gx;

// PRIVATE DATA DEFINITIONS ------------------------------------------------

// CODE --------------------------------------------------------------------

int DD_CheckArg(char *tag, char **value)
{
    int     i = ArgCheck(tag);
    char   *next = ArgNext();

    if(!i)
        return 0;
    if(value && next)
        *value = next;
    return 1;
}

void DD_ErrorBox(boolean error, char *format, ...)
{
    char    buff[200];
    va_list args;

    va_start(args, format);
    vsnprintf(buff, sizeof(buff), format, args);
    va_end(args);
#ifdef WIN32
    MessageBox(NULL, buff, "Doomsday " DOOMSDAY_VERSION_TEXT,
               MB_OK | (error ? MB_ICONERROR : MB_ICONWARNING));
#endif
#ifdef UNIX
    fputs(buff, stderr);
#endif
}

/*
 * Compose the title for the main window.
 */
void DD_MainWindowTitle(char *title)
{
    sprintf(title, "Doomsday " DOOMSDAY_VERSION_TEXT " : %s",
            __gx.Get(DD_GAME_ID));
}

void SetGameImports(game_import_t * imp)
{
    memset(imp, 0, sizeof(*imp));
    imp->apiSize = sizeof(*imp);
    imp->version = DOOMSDAY_VERSION;

    // Data.
    imp->mobjinfo = &mobjinfo;
    imp->states = &states;
    imp->sprnames = &sprnames;
    imp->text = &texts;

    imp->validcount = &validcount;
    imp->topslope = &topslope;
    imp->bottomslope = &bottomslope;
    imp->thinkercap = &thinkercap;

/*
    imp->numvertexes = &numvertexes;
    imp->numsegs = &numsegs;
    imp->numsectors = &numsectors;
    imp->numsubsectors = &numsubsectors;
    imp->numnodes = &numnodes;
    imp->numlines = &numlines;
    imp->numsides = &numsides;
    imp->numthings = &numthings;

    imp->vertexes = (void **) &vertexes;
    imp->segs = (void **) &segs;
    imp->sectors = (void **) &sectors;
    imp->subsectors = (void **) &subsectors;
    imp->nodes = (void **) &nodes;
    imp->lines = (void **) &lines;
    imp->sides = (void **) &sides;
    imp->things = (void **) &things;

    imp->blockmaplump = &blockmaplump;
    imp->blockmap = &blockmap;
    imp->bmapwidth = &bmapwidth;
    imp->bmapheight = &bmapheight;
    imp->bmaporgx = &bmaporgx;
    imp->bmaporgy = &bmaporgy;
    imp->rejectmatrix = &rejectmatrix;
    imp->polyblockmap = (void ***) &polyblockmap;
    imp->polyobjs = (void **) &polyobjs;
    imp->numpolyobjs = &po_NumPolyobjs;
*/
}

void DD_InitAPI(void)
{
#ifdef WIN32
    extern GETGAMEAPI GetGameAPI;
#endif

    game_export_t *gameExPtr;

    // Put the imported stuff into the imports.
    SetGameImports(&__gi);

    memset(&__gx, 0, sizeof(__gx));
    gameExPtr = GetGameAPI(&__gi);
    memcpy(&__gx, gameExPtr,
           MIN_OF(sizeof(__gx), (unsigned) gameExPtr->apiSize));
}

void DD_InitCommandLine(const char *cmdLine)
{
    ArgInit(cmdLine);

    // Register some abbreviations for command line options.
    ArgAbbreviate("-game", "-g");
    ArgAbbreviate("-gl", "-r"); // As in (R)enderer...
    ArgAbbreviate("-defs", "-d");
    ArgAbbreviate("-width", "-w");
    ArgAbbreviate("-height", "-h");
    ArgAbbreviate("-winsize", "-wh");
    ArgAbbreviate("-bpp", "-b");
    ArgAbbreviate("-window", "-wnd");
    ArgAbbreviate("-nocenter", "-noc");
    ArgAbbreviate("-paltex", "-ptx");
    ArgAbbreviate("-file", "-f");
    ArgAbbreviate("-maxzone", "-mem");
    ArgAbbreviate("-config", "-cfg");
    ArgAbbreviate("-parse", "-p");
    ArgAbbreviate("-cparse", "-cp");
    ArgAbbreviate("-command", "-cmd");
    ArgAbbreviate("-fontdir", "-fd");
    ArgAbbreviate("-modeldir", "-md");
    ArgAbbreviate("-basedir", "-bd");
    ArgAbbreviate("-stdbasedir", "-sbd");
    ArgAbbreviate("-userdir", "-ud");
    ArgAbbreviate("-texdir", "-td");
    ArgAbbreviate("-texdir2", "-td2");
    ArgAbbreviate("-anifilter", "-ani");
    ArgAbbreviate("-verbose", "-v");
}

/*
 * This is called from DD_Shutdown().
 */
void DD_ShutdownAll(void)
{
    int     i;

    DD_ShutdownHelp();
    Zip_Shutdown();

    // Kill the message window if it happens to be open.
    SW_Shutdown();

#ifdef WIN32
    // Enables Alt-Tab, Alt-Esc, Ctrl-Alt-Del.
    SystemParametersInfo(SPI_SETSCREENSAVERRUNNING, FALSE, 0, 0);
#endif

    // Stop all demo recording.
    for(i = 0; i < MAXPLAYERS; i++)
        Demo_StopRecording(i);

    Sv_Shutdown();
    R_Shutdown();
    Sys_ConShutdown();
    Def_Destroy();
    F_ShutdownDirec();
    FH_Clear();
    ArgShutdown();
    Z_Shutdown();
    //DD_ShutdownDGL();

    // Close the message output file.
    fclose(outFile);
    outFile = NULL;
}