// Emacs style mode select   -*- C++ -*- 
//-----------------------------------------------------------------------------
//
// $Id:$
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// This source is available for distribution and/or modification
// only under the terms of the DOOM Source Code License as
// published by id Software. All rights reserved.
//
// The source is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
// for more details.
//
//
// $Log:$
//
// DESCRIPTION:
//	Main loop menu stuff.
//	Default Config File.
//	PCX Screenshots.
//
//-----------------------------------------------------------------------------

static const char
rcsid[] = "$Id: m_misc.c,v 1.6 1997/02/03 22:45:10 b1 Exp $";

#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <stdlib.h>
#include <io.h>
//#include <unistd.h>
#include <direct.h>

#include <ctype.h>


#include "doomdef.h"

#include "z_zone.h"

#include "m_swap.h"
#include "m_argv.h"

#include "w_wad.h"

#include "i_system.h"
#include "i_video.h"
#include "v_video.h"

#include "hu_stuff.h"

// State.
#include "doomstat.h"

// Data.
#include "dstrings.h"

#include "m_misc.h"

//
// M_DrawText
// Returns the final X coordinate
// HU_Init must have been called to init the font
//
extern patch_t*		hu_font[HU_FONTSIZE];

int
M_DrawText
( int		x,
  int		y,
  boolean	direct,
  char*		string,
  PBUFFER RenderBuffer/*DQ*/)
//int
//M_DrawText
//( int		x,
//  int		y,
//  boolean	direct,
//  char*		string)
{
    int 	c;
    int		w;

    while (*string)
    {
	c = toupper(*string) - HU_FONTSTART;
	string++;
	if (c < 0 || c> HU_FONTSIZE)
	{
	    x += 4;
	    continue;
	}
		
	w = SHORT (hu_font[c]->width);
	if (x+w > SCREENWIDTH)
	    break;
	if (direct)
	    V_DrawPatchDirect(x, y, RenderBuffer/*DQ 0*/, hu_font[c]);
	else
	    V_DrawPatch(x, y, RenderBuffer/*DQ 0*/, hu_font[c]);
	x+=w;
    }

    return x;
}



//
// M_GetFileSize
//
#ifndef O_BINARY
#define O_BINARY 0
#endif

int M_GetFileSize( char const*	name )
   {
    int		handle;
    int		count;
	
    handle = open ( name, O_RDWR | O_BINARY);

    if (handle == -1)
        return 0;

    count = lseek(handle, 0, SEEK_END);
    close (handle);
	
    return count;
   }

//
// M_WriteFile
//
boolean
M_WriteFile
( char const*	name,
  void*		source,
  int		length )
{
    int		handle;
    int		count;
	
    handle = open ( name, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666);

    if (handle == -1)
	return false;

    count = write (handle, source, length);
    close (handle);
	
    if (count < length)
	return false;
		
    return true;
}

//
// M_AppendFile
//
boolean M_AppendFile(char const *name, void *source, int length )
   {
    int		handle;
    int		count;
	
    handle = open( name, O_RDWR | O_BINARY);

    if (handle == -1)
        return false;

    lseek(handle, 0L, SEEK_END);

    count = write (handle, source, length);
    close (handle);
	
    if (count < length)
        return false;
		
    return true;
   }


//
// M_ReadFile
//
int
M_ReadFile
( char const*	name,
  byte**	buffer )
{
    int	handle, count, length;
    struct stat	fileinfo;
    byte		*buf;
	
    handle = open (name, O_RDONLY | O_BINARY, 0666);
    if (handle == -1)
	I_Error ("Couldn't read file %s", name);
    if (fstat (handle,&fileinfo) == -1)
	I_Error ("Couldn't read file %s", name);
    length = fileinfo.st_size;
    buf = Z_Malloc (length, PU_STATIC, NULL);
    count = read (handle, buf, length);
    close (handle);
	
    if (count < length)
	I_Error ("Couldn't read file %s", name);
		
    *buffer = buf;
    return length;
}


//
// DEFAULTS
//
int		usemouse;
int		usejoystick;

extern int	key_right;
extern int	key_left;
extern int	key_up;
extern int	key_down;

extern int	key_strafeleft;
extern int	key_straferight;

extern int	key_fire;
extern int	key_use;
extern int	key_strafe;
extern int	key_speed;

extern int  key_mvert;

extern int  always_run;
extern int  swap_stereo;
extern int  mvert;
extern int  keylink;

extern int	mousebfire;
extern int	mousebstrafe;
extern int	mousebforward;

extern int	mouseb1;
extern int	mouseb2;
extern int	mouseb3;

extern int	joybfire;
extern int	joybstrafe;
extern int	joybuse;
extern int	joybspeed;

extern int  joyb1;
extern int  joyb2;
extern int  joyb3;
extern int  joyb4;

extern int	viewwidth;
extern int	viewheight;

extern int	mouseSensitivity;
extern int	showMessages;

extern int	detailLevel;

extern int	screenblocks;

extern int	showMessages;

// machine-independent sound params
extern	int	numChannels;


// UNIX hack, to be removed.
#ifdef SNDSERV
extern char*	sndserver_filename;
extern int	mb_used;
#endif

#ifdef LINUX
char*		mousetype;
char*		mousedev;
#endif

extern char*	chat_macros[];



typedef struct
{
    char*	name;
    int*	location;
    int		defaultvalue;
    int		scantranslate;		// PC scan code hack
    int		untranslated;		// lousy hack
} default_t;

default_t	defaults[] =
{
    {"mouse_sensitivity",&mouseSensitivity, 5},
    {"sfx_volume",&snd_SfxVolume, 8},
    {"music_volume",&snd_MusicVolume, 8},
    {"show_messages",&showMessages, 1},
    

#ifdef NORMALUNIX
    {"key_right",&key_right, KEY_RIGHTARROW},
    {"key_left",&key_left, KEY_LEFTARROW},
    {"key_up",&key_up, KEY_UPARROW},
    {"key_down",&key_down, KEY_DOWNARROW},
    {"key_strafeleft",&key_strafeleft, ','},
    {"key_straferight",&key_straferight, '.'},

    {"key_fire",&key_fire, KEY_RCTRL},
    {"key_use",&key_use, ' '},
    {"key_strafe",&key_strafe, KEY_RALT},
    {"key_speed",&key_speed, KEY_RSHIFT},

// UNIX hack, to be removed. 
#ifdef SNDSERV
    {"sndserver", (int *) &sndserver_filename, (int) "sndserver"},
    {"mb_used", &mb_used, 2},
#endif
    
#endif

#ifdef LINUX
    {"mousedev", (int*)&mousedev, (int)"/dev/ttyS0"},
    {"mousetype", (int*)&mousetype, (int)"microsoft"},
#endif

    {"use_mouse",&usemouse, 1},
    {"mouseb_fire",&mousebfire,0},
    {"mouseb_strafe",&mousebstrafe,1},
    {"mouseb_forward",&mousebforward,2},

    {"use_joystick",&usejoystick, 0},
    {"joyb_fire",&joybfire,0},
    {"joyb_strafe",&joybstrafe,1},
    {"joyb_use",&joybuse,3},
    {"joyb_speed",&joybspeed,2},

    {"screenblocks",&screenblocks, 9},
    {"detaillevel",&detailLevel, 0},

    {"snd_channels",&numChannels, 3},



    {"usegamma",&usegamma, 0},

    {"chatmacro0", (int *) &chat_macros[0], (int) HUSTR_CHATMACRO0 },
    {"chatmacro1", (int *) &chat_macros[1], (int) HUSTR_CHATMACRO1 },
    {"chatmacro2", (int *) &chat_macros[2], (int) HUSTR_CHATMACRO2 },
    {"chatmacro3", (int *) &chat_macros[3], (int) HUSTR_CHATMACRO3 },
    {"chatmacro4", (int *) &chat_macros[4], (int) HUSTR_CHATMACRO4 },
    {"chatmacro5", (int *) &chat_macros[5], (int) HUSTR_CHATMACRO5 },
    {"chatmacro6", (int *) &chat_macros[6], (int) HUSTR_CHATMACRO6 },
    {"chatmacro7", (int *) &chat_macros[7], (int) HUSTR_CHATMACRO7 },
    {"chatmacro8", (int *) &chat_macros[8], (int) HUSTR_CHATMACRO8 },
    {"chatmacro9", (int *) &chat_macros[9], (int) HUSTR_CHATMACRO9 }

};

int	numdefaults;
char*	defaultfile;