// 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:
//
//-----------------------------------------------------------------------------

#if defined( _WIN32 ) || defined( __wasm__ )

#include "doomtype.h"
#include "doomdef.h"
#include "doomstat.h"
#include "d_ticcmd.h"


void I_Init (void)
{
    I_InitSound();
    //  I_InitGraphics();
}


int	mb_used = 6;


// Called by startup code
// to get the ammount of memory to malloc
// for the zone management.
byte*	I_ZoneBase (int *size)
{
    *size = mb_used*1024*1024;
    return (byte *) malloc (*size);
}


// Called by D_DoomLoop,
// returns current time in tics.
int I_GetTime (void)
{
	#ifdef _WIN32
    
	LARGE_INTEGER large;
    LARGE_INTEGER freq;
    QueryPerformanceCounter( &large );
    QueryPerformanceFrequency( &freq );

    return large.QuadPart * TICRATE / freq.QuadPart;
	
	#else
        struct timespec t;
        clock_gettime( CLOCK_MONOTONIC_RAW, &t );
        uint64_t curr_clock = (FRAMETIMER_U64)t.tv_sec;
        curr_clock *= 1000000000ull;
        curr_clock += (FRAMETIMER_U64)t.tv_nsec;
		return (int)( ( curr_clock * TICRATE ) / 1000000000 );
	#endif
}



//
// Called by D_DoomLoop,
// called before processing any tics in a frame
// (just after displaying a frame).
// Time consuming syncronous operations
// are performed here (joystick reading).
// Can call D_PostEvent.
//
void I_StartFrame (void)
{
}


//
// Called by D_DoomLoop,
// called before processing each tic in a frame.
// Quick syncronous operations are performed here.
// Can call D_PostEvent.
//void I_StartTic (void)
//{
//}

// Asynchronous interrupt functions should maintain private queues
// that are read by the synchronous functions
// to be converted into events.

// Either returns a null ticcmd,
// or calls a loadable driver to build it.
// This ticcmd will then be modified by the gameloop
// for normal input.

ticcmd_t	emptycmd;

ticcmd_t* I_BaseTiccmd (void)
{
    return &emptycmd;
}


// Called by M_Responder when quit is selected.
// Clean exit, displays sell blurb.
void I_Quit (void)
{
    D_QuitNetGame ();
    I_ShutdownSound();
    I_ShutdownMusic();
    M_SaveDefaults ();
    I_ShutdownGraphics();
    exit(0);
}



// Allocates from low memory under dos,
// just mallocs under unix
byte* I_AllocLow (int length)
{
    byte*	mem;
        
    mem = (byte *)malloc (length);
    memset (mem,0,length);
    return mem;
}

void I_Tactile (int on, int off, int total)
{
  // UNUSED.
  on = off = total = 0;
}


void I_Error (char *error, ...)
{
    va_list	argptr;

    // Message first.
    va_start (argptr,error);
    fprintf (stderr, "Error: ");
    vfprintf (stderr,error,argptr);
    fprintf (stderr, "\n");
    va_end (argptr);

    fflush( stderr );

    // Shutdown. Here might be other errors.
    if (demorecording)
	G_CheckDemoStatus();

    D_QuitNetGame ();
    I_ShutdownGraphics();
    
    exit(-1);
}


#else
// 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:
//
//-----------------------------------------------------------------------------

static const char
rcsid[] = "$Id: m_bbox.c,v 1.1 1997/02/03 22:45:10 b1 Exp $";


#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include <stdarg.h>
#include <sys/time.h>
#include <unistd.h>


#include "doomdef.h"
#include "m_misc.h"
#include "i_video.h"
#include "i_sound.h"

#include "d_net.h"
#include "g_game.h"

#ifdef __GNUG__
#pragma implementation "i_system.h"
#endif
#include "i_system.h"




int	mb_used = 6;


void
I_Tactile
( int	on,
  int	off,
  int	total )
{
  // UNUSED.
  on = off = total = 0;
}

ticcmd_t	emptycmd;
ticcmd_t*	I_BaseTiccmd(void)
{
    return &emptycmd;
}


int  I_GetHeapSize (void)
{
    return mb_used*1024*1024;
}

byte* I_ZoneBase (int*	size)
{
    *size = mb_used*1024*1024;
    return (byte *) malloc (*size);
}



//
// I_GetTime
// returns time in 1/70th second tics
//
int  I_GetTime (void)
{
    struct timeval	tp;
    struct timezone	tzp;
    int			newtics;
    static int		basetime=0;
  
    gettimeofday(&tp, &tzp);
    if (!basetime)
	basetime = tp.tv_sec;
    newtics = (tp.tv_sec-basetime)*TICRATE + tp.tv_usec*TICRATE/1000000;
    return newtics;
}



//
// I_Init
//
void I_Init (void)
{
    I_InitSound();
    //  I_InitGraphics();
}

//
// I_Quit
//
void I_Quit (void)
{
    D_QuitNetGame ();
    I_ShutdownSound();
    I_ShutdownMusic();
    M_SaveDefaults ();
    I_ShutdownGraphics();
    exit(0);
}

void I_WaitVBL(int count)
{
#ifdef SGI
    sginap(1);                                           
#else
#ifdef SUN
    sleep(0);
#else
    usleep (count * (1000000/70) );                                
#endif
#endif
}

void I_BeginRead(void)
{
}

void I_EndRead(void)
{
}

byte*	I_AllocLow(int length)
{
    byte*	mem;
        
    mem = (byte *)malloc (length);
    memset (mem,0,length);
    return mem;
}


//
// I_Error
//
extern boolean demorecording;

void I_Error (char *error, ...)
{
    va_list	argptr;

    // Message first.
    va_start (argptr,error);
    fprintf (stderr, "Error: ");
    vfprintf (stderr,error,argptr);
    fprintf (stderr, "\n");
    va_end (argptr);

    fflush( stderr );

    // Shutdown. Here might be other errors.
    if (demorecording)
	G_CheckDemoStatus();

    D_QuitNetGame ();
    I_ShutdownGraphics();
    
    exit(-1);
}

#endif