94109a9506
Forgot a return statement in Sys_FileRead (which slipped by since I've made the questionable decision to disable all warnings...) Change-Id: Ia0f3da52b43765b8e0e9953893ac7957ec2f6c2e
509 lines
9.3 KiB
C
509 lines
9.3 KiB
C
#include <limits.h>
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#include <sys/types.h>
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#include <stdarg.h>
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#include <ctype.h>
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#include "quakedef.h"
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qboolean isDedicated;
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int noconinput = 0;
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char *basedir = "/.rockbox/quake";
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char *cachedir = NULL;
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cvar_t sys_linerefresh = {"sys_linerefresh","0"};// set for entity display
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cvar_t sys_nostdout = {"sys_nostdout","0"};
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// =======================================================================
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// General routines
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// =======================================================================
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void Sys_DebugNumber(int y, int val)
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{
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}
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int enable_printf = 1;
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void Sys_Printf (char *fmt, ...)
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{
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va_list argptr;
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char text[1024];
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va_start (argptr,fmt);
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vsprintf (text,fmt,argptr);
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va_end (argptr);
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if(enable_printf)
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{
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printf("%s", text);
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}
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LOGF("%s", text);
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//Con_Print (text);
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}
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void Sys_Quit (void)
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{
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Host_Shutdown();
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exit(0);
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}
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void Sys_Init(void)
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{
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#if id386
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Sys_SetFPCW();
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#endif
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}
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#if !id386
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/*
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================
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Sys_LowFPPrecision
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================
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*/
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void Sys_LowFPPrecision (void)
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{
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// causes weird problems on Nextstep
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}
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/*
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================
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Sys_HighFPPrecision
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================
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*/
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void Sys_HighFPPrecision (void)
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{
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// causes weird problems on Nextstep
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}
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#endif // !id386
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void Sys_Error (char *error, ...)
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{
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va_list argptr;
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char string[1024];
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va_start (argptr,error);
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vsprintf (string,error,argptr);
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va_end (argptr);
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rb->splashf(HZ*5, "Error: %s\n", string);
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Host_Shutdown ();
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exit (1);
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}
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void Sys_Warn (char *warning, ...)
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{
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va_list argptr;
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char string[1024];
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va_start (argptr,warning);
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vsprintf (string,warning,argptr);
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va_end (argptr);
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rb->splashf(HZ*2, "Warning: %s", string);
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}
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/*
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===============================================================================
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FILE IO
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===============================================================================
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*/
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#define MAX_HANDLES 10
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//static FILE *sys_handles[MAX_HANDLES];
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/* a file fully or partially cached in memory */
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/* We use the FILE handle to track the current position */
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static struct memfile {
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FILE *f; /* NULL: unused slot */
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char *buf;
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size_t resident_len; /* bytes 0-(resident_len-1) are in memory */
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size_t full_len;
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} sys_handles[MAX_HANDLES];
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void Sys_Shutdown(void)
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{
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for(int i = 0; i < MAX_HANDLES; i++)
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{
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FILE *f = sys_handles[i].f;
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if(f)
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fclose(f);
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sys_handles[i].f = NULL;
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}
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}
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int findhandle (void)
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{
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int i;
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for (i=1 ; i<MAX_HANDLES ; i++)
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if (!sys_handles[i].f)
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return i;
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Sys_Error ("out of handles");
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return -1;
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}
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/*
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================
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Qfilelength
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================
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*/
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static int Qfilelength (FILE *f)
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{
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int pos;
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int end;
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pos = ftell (f);
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fseek (f, 0, SEEK_END);
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end = ftell (f);
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fseek (f, pos, SEEK_SET);
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return end;
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}
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#define CACHE_THRESHOLD (1024*1024)
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#define CACHE_ENABLE
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/* really rough guesses */
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#ifdef CACHE_ENABLE
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#if MEMORYSIZE >= 64
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#define MAX_CACHE (32*1024*1024)
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#elif MEMORYSIZE >= 32
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#define MAX_CACHE (20*1024*1024)
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#endif
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#endif
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#ifndef MAX_CACHE
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#define MAX_CACHE 0
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#endif
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static int cache_left = MAX_CACHE;
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int Sys_FileOpenRead (char *path, int *hndl)
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{
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FILE *f;
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int i;
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i = findhandle ();
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f = fopen(path, "rb");
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if (!f)
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{
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*hndl = -1;
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return -1;
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}
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sys_handles[i].f = f;
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*hndl = i;
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//rb->splashf(HZ*2, "Allocating handle %d to %s", i, path);
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int len = sys_handles[i].full_len = Qfilelength(f);
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/* cache in memory? */
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if(len > CACHE_THRESHOLD && cache_left > 0)
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{
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/* cache all or part of it */
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int cachelen = (cache_left > len) ? len : cache_left;
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if((sys_handles[i].buf = malloc(cachelen)))
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{
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cache_left -= cachelen;
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/* fill in cache */
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printf("Please wait... caching %d KB of large file", cachelen / 1024);
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if(fread(sys_handles[i].buf, 1, cachelen, f) == cachelen)
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{
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sys_handles[i].resident_len = cachelen;
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fseek(f, 0, SEEK_SET);
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printf("Success!");
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}
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}
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}
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return len;
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}
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int Sys_FileOpenWrite (char *path)
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{
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FILE *f;
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int i;
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i = findhandle ();
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f = fopen(path, "wb");
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if (!f)
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Sys_Error ("Error opening %s: %s", path,strerror(errno));
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sys_handles[i].f = f;
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return i;
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}
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void Sys_FileClose (int handle)
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{
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if ( handle >= 0 ) {
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//rb->splashf(HZ, "Close handle %d", handle);
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fclose (sys_handles[handle].f);
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cache_left += sys_handles[handle].resident_len;
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// clear all fields so we can safely reuse
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memset(sys_handles + handle, 0, sizeof(sys_handles[0]));
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}
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}
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void Sys_FileSeek (int handle, int position)
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{
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if ( handle >= 0 ) {
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fseek (sys_handles[handle].f, position, SEEK_SET);
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}
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}
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int Sys_FileRead (int handle, void *dst, int count)
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{
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char *data;
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int size, done;
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size = 0;
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if ( handle >= 0 ) {
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FILE *f = sys_handles[handle].f;
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data = dst;
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/* partially or fully in memory */
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int pos = ftell(f);
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if(pos < sys_handles[handle].resident_len)
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{
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int memleft = sys_handles[handle].resident_len - pos;
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int memlen = MIN(count, memleft);
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memcpy(data, sys_handles[handle].buf + pos, memlen);
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data += memlen;
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count -= memlen;
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size += memlen;
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fseek(f, memlen, SEEK_CUR);
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}
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while ( count > 0 ) {
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done = fread (data, 1, count, sys_handles[handle].f);
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if ( done == 0 ) {
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break;
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}
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else if(done < 0)
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{
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Sys_Error("stream error %d, file is %d = %d", done, handle, sys_handles[handle]);
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}
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data += done;
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count -= done;
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size += done;
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}
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}
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return size;
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}
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int Sys_FileWrite (int handle, void *src, int count)
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{
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char *data;
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int size, done;
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size = 0;
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if ( handle >= 0 ) {
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data = src;
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while ( count > 0 ) {
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done = fread (data, 1, count, sys_handles[handle].f);
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if ( done == 0 ) {
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break;
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}
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data += done;
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count -= done;
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size += done;
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}
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}
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return size;
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}
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int Sys_FileTime (char *path)
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{
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FILE *f;
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f = fopen(path, "rb");
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if (f)
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{
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fclose(f);
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return 1;
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}
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return -1;
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}
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void Sys_mkdir (char *path)
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{
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#ifdef __WIN32__
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mkdir (path);
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#else
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mkdir (path);
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#endif
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}
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void Sys_DebugLog(char *file, char *fmt, ...)
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{
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va_list argptr;
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static char data[1024];
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FILE *fp;
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va_start(argptr, fmt);
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vsprintf(data, fmt, argptr);
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va_end(argptr);
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fp = fopen(file, "a");
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fwrite(data, strlen(data), 1, fp);
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fclose(fp);
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}
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double Sys_FloatTime (void)
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{
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static int starttime = 0;
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if ( ! starttime )
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starttime = *rb->current_tick;
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return (*rb->current_tick - starttime) / ((double)HZ);
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}
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// =======================================================================
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// Sleeps for microseconds
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// =======================================================================
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static volatile int oktogo;
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void alarm_handler(int x)
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{
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oktogo=1;
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}
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byte *Sys_ZoneBase (int *size)
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{
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char *QUAKEOPT = getenv("QUAKEOPT");
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*size = 0xc00000;
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if (QUAKEOPT)
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{
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while (*QUAKEOPT)
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if (tolower(*QUAKEOPT++) == 'm')
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{
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*size = atof(QUAKEOPT) * 1024*1024;
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break;
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}
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}
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return malloc (*size);
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}
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void Sys_LineRefresh(void)
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{
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}
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void Sys_Sleep(void)
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{
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SDL_Delay(1);
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}
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void floating_point_exception_handler(int whatever)
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{
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// Sys_Warn("floating point exception\n");
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}
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void moncontrol(int x)
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{
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}
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int my_main (int c, char **v)
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{
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double time, oldtime, newtime;
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quakeparms_t parms;
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extern int vcrFile;
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extern int recording;
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static int frame;
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moncontrol(0);
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// signal(SIGFPE, floating_point_exception_handler);
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//rb->splash(0, "quake 1");
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parms.memsize = 8*1024*1024;
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parms.membase = malloc (parms.memsize);
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parms.basedir = basedir;
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parms.cachedir = cachedir;
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COM_InitArgv(c, v);
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parms.argc = com_argc;
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parms.argv = com_argv;
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Sys_Init();
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//rb->splash(0, "quake 2");
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Host_Init(&parms);
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//rb->splash(0, "quake 3");
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//Cvar_RegisterVariable (&sys_nostdout);
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//rb->splash(0, "quake 4");
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oldtime = Sys_FloatTime () - 0.1;
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while (1)
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{
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// find time spent rendering last frame
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newtime = Sys_FloatTime ();
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time = newtime - oldtime;
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if (cls.state == ca_dedicated)
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{ // play vcrfiles at max speed
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if (time < sys_ticrate.value && (vcrFile == -1 || recording) )
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{
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rb->yield();
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continue; // not time to run a server only tic yet
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}
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time = sys_ticrate.value;
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}
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if (time > sys_ticrate.value*2)
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oldtime = newtime;
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else
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oldtime += time;
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if (++frame > 10)
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moncontrol(1); // profile only while we do each Quake frame
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Host_Frame (time);
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moncontrol(0);
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// graphic debugging aids
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if (sys_linerefresh.value)
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Sys_LineRefresh ();
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rb->yield();
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}
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}
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/*
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================
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Sys_MakeCodeWriteable
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================
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*/
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void Sys_MakeCodeWriteable (unsigned long startaddr, unsigned long length)
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{
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Sys_Error("Protection change failed\n");
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}
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