ref: f65633b5f50be8581ec2de7c06ca9a225d48b82a
dir: /src/i_system.c/
// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// $Id: i_system.c 234 2005-12-30 18:50:53Z fraggle $
//
// Copyright(C) 1993-1996 Id Software, Inc.
// Copyright(C) 2005 Simon Howard
//
// 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., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
//
// $Log$
// Revision 1.15 2005/12/30 18:50:53 fraggle
// Millisecond clock function
//
// Revision 1.14 2005/11/17 09:41:24 fraggle
// Catch SDL_QUIT event on ENDOOM display
//
// Revision 1.13 2005/10/09 20:19:21 fraggle
// Handle blinking text in ENDOOM lumps properly.
//
// Revision 1.12 2005/10/02 03:23:54 fraggle
// Fix the length of time that ENDOOM is displayed for
//
// Revision 1.11 2005/10/02 03:16:29 fraggle
// ENDOOM support using text mode emulation
//
// Revision 1.10 2005/09/22 13:13:47 fraggle
// Remove external statistics driver support (-statcopy):
// nonfunctional on modern systems and never used.
// Fix for systems where sizeof(int) != sizeof(void *)
//
// Revision 1.9 2005/09/08 22:10:40 fraggle
// Delay calls so we don't use the entire CPU
//
// Revision 1.8 2005/09/06 22:39:43 fraggle
// Restore -nosound, -nosfx, -nomusic
//
// Revision 1.7 2005/08/04 18:42:15 fraggle
// Silence compiler warnings
//
// Revision 1.6 2005/08/04 01:14:37 fraggle
// Begin/EndRead now in i_video.c
//
// Revision 1.5 2005/07/25 20:41:59 fraggle
// Port timer code to SDL
//
// Revision 1.4 2005/07/23 19:42:56 fraggle
// Startup messages as in the DOS exes
//
// Revision 1.3 2005/07/23 18:56:07 fraggle
// Remove unneccessary pragmas
//
// Revision 1.2 2005/07/23 16:44:55 fraggle
// Update copyright to GNU GPL
//
// Revision 1.1.1.1 2005/07/23 16:20:39 fraggle
// Initial import
//
//
// DESCRIPTION:
//
//-----------------------------------------------------------------------------
static const char
rcsid[] = "$Id: i_system.c 234 2005-12-30 18:50:53Z fraggle $";
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <SDL.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"
#include "txt_main.h"
#include "w_wad.h"
#include "z_zone.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)
{
byte *zonemem;
*size = mb_used*1024*1024;
zonemem = malloc (*size);
printf("zone memory: %p, %x allocated for zone\n",
zonemem, *size);
return zonemem;
}
//
// I_GetTime
// returns time in 1/35th second tics
//
static Uint32 basetime = 0;
int I_GetTime (void)
{
Uint32 ticks;
ticks = SDL_GetTicks();
if (basetime == 0)
basetime = ticks;
ticks -= basetime;
return (ticks * 35) / 1000;
}
//
// Same as I_GetTime, but returns time in milliseconds
//
int I_GetTimeMS(void)
{
Uint32 ticks;
ticks = SDL_GetTicks();
if (basetime == 0)
basetime = ticks;
return ticks - basetime;
}
//
// I_Init
//
void I_Init (void)
{
I_InitSound();
I_InitMusic();
// initialise timer
SDL_Init(SDL_INIT_TIMER);
}
//
// Displays the text mode ending screen after the game quits
//
void I_Endoom(void)
{
unsigned char *endoom_data;
unsigned char *screendata;
unsigned int start_ms;
boolean waiting;
SDL_Event ev;
endoom_data = W_CacheLumpName("ENDOOM", PU_STATIC);
// Set up text mode screen
TXT_Init();
// Make sure the new window has the right title and icon
I_SetWindowCaption();
I_SetWindowIcon();
// Write the data to the screen memory
screendata = TXT_GetScreenData();
memcpy(screendata, endoom_data, 4000);
// Wait for 10 seconds, or until a keypress or mouse click
waiting = true;
start_ms = I_GetTime();
while (waiting && I_GetTime() < start_ms + 350)
{
TXT_UpdateScreen();
if (!SDL_PollEvent(&ev))
{
I_Sleep(50);
continue;
}
switch (ev.type)
{
case SDL_QUIT:
case SDL_MOUSEBUTTONDOWN:
case SDL_KEYDOWN:
waiting = false;
break;
default:
break;
}
}
// Shut down text mode screen
TXT_Shutdown();
}
//
// I_Quit
//
void I_Quit (void)
{
D_QuitNetGame ();
I_ShutdownSound();
I_ShutdownMusic();
M_SaveDefaults ();
I_ShutdownGraphics();
I_Endoom();
exit(0);
}
void I_WaitVBL(int count)
{
SDL_Delay((count * 1000) / 70);
}
// Sleep for a specified number of ms
void I_Sleep(int ms)
{
SDL_Delay(ms);
}
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);
}