forked from Ports/perfect_dark
75 lines
1.3 KiB
C
75 lines
1.3 KiB
C
#include <stdlib.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/time.h>
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#include <SDL.h>
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#include <PR/ultratypes.h>
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#include "system.h"
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#define USEC_IN_SEC 1000000ULL
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static u64 startTick = 0;
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void sysInitTicks(void)
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{
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startTick = sysGetMicroseconds();
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}
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u64 sysGetMicroseconds(void)
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{
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struct timeval tv;
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gettimeofday(&tv, NULL);
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return ((u64)tv.tv_sec * USEC_IN_SEC + (u64)tv.tv_usec) - startTick;
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}
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void sysFatalError(const char *fmt, ...)
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{
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char errmsg[2048] = { 0 };
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va_list ap;
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va_start(ap, fmt);
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vsnprintf(errmsg, sizeof(errmsg), fmt, ap);
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va_end(ap);
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fprintf(stderr, "FATAL ERROR: %s\n", errmsg);
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fflush(stderr);
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SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Fatal error", errmsg, NULL);
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exit(1);
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}
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void sysGetExecutablePath(char *outPath, const u32 outLen)
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{
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// try asking SDL
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char *sdlPath = SDL_GetBasePath();
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if (sdlPath && *sdlPath) {
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// -1 to trim trailing slash
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const u32 len = strlen(sdlPath) - 1;
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if (len < outLen) {
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memcpy(outPath, sdlPath, len);
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outPath[len] = '\0';
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}
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} else if (outLen > 1) {
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// give up, use working directory instead
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outPath[0] = '.';
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outPath[1] = '\0';
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}
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SDL_free(sdlPath);
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}
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void *sysMemAlloc(const u32 size)
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{
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return malloc(size);
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}
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void *sysMemZeroAlloc(const u32 size)
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{
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return calloc(1, size);
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}
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void sysMemFree(void *ptr)
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{
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free(ptr);
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}
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