v4k-git-backup/demos/ports/doom/src/i_system.c

161 lines
2.4 KiB
C

// 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:
//
//-----------------------------------------------------------------------------
#include "doom_config.h"
#include "doomdef.h"
#include "m_misc.h"
#include "i_video.h"
#include "i_sound.h"
#include "d_net.h"
#include "g_game.h"
#include "i_system.h"
int mb_used = 6 * (sizeof(void*) / 4);
ticcmd_t emptycmd;
extern doom_boolean demorecording;
void I_Tactile(int on, int off, int total)
{
}
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*)doom_malloc(*size);
}
//
// I_GetTime
// returns time in 1/70th second tics
//
int I_GetTime(void)
{
int sec, usec;
int newtics;
static int basetime = 0;
doom_gettime(&sec, &usec);
if (!basetime)
basetime = sec;
newtics = (sec - basetime) * TICRATE + usec * TICRATE / 1000000;
return newtics;
}
//
// I_Init
//
void I_Init(void)
{
I_InitSound();
}
//
// I_Quit
//
void I_Quit(void)
{
D_QuitNetGame();
I_ShutdownSound();
I_ShutdownMusic();
M_SaveDefaults();
I_ShutdownGraphics();
doom_exit(0);
}
void I_WaitVBL(int count)
{
#if 0 // [pd] Never sleep in main thread
#ifdef SGI
sginap(1);
#else
#ifdef SUN
sleep(0);
#else
usleep(count * (1000000 / 70));
#endif
#endif
#endif
}
void I_BeginRead(void)
{
}
void I_EndRead(void)
{
}
byte* I_AllocLow(int length)
{
byte* mem;
mem = (byte*)doom_malloc(length);
doom_memset(mem, 0, length);
return mem;
}
//
// I_Error
//
void I_Error(char* error)
{
// Message first.
if (error) doom_print(error);
doom_print("\n");
// Shutdown. Here might be other errors.
if (demorecording)
G_CheckDemoStatus();
D_QuitNetGame();
I_ShutdownGraphics();
doom_exit(-1);
}