RetroArch/benchmark.c
2012-10-30 23:28:54 +01:00

86 lines
2.5 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
* Copyright (C) 2011-2012 - Daniel De Matteis
*
* RetroArch 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 Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch 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 RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "benchmark.h"
#if defined(__CELLOS_LV2__) || defined(GEKKO)
#ifndef _PPU_INTRINSICS_H
#include <ppu_intrinsics.h>
#endif
#elif defined(_XBOX360)
#include <PPCIntrinsics.h>
#elif defined(__linux__)
#include <sys/time.h>
#endif
#define MAX_COUNTERS 64
static struct rarch_perf_counter *perf_counters[MAX_COUNTERS];
static unsigned perf_ptr;
void rarch_perf_register(struct rarch_perf_counter *perf)
{
if (perf_ptr >= MAX_COUNTERS)
return;
perf_counters[perf_ptr++] = perf;
perf->registered = true;
}
void rarch_perf_log(void)
{
RARCH_LOG("[PERF]: Performance counters:\n");
for (unsigned i = 0; i < perf_ptr; i++)
RARCH_PERFORMANCE_LOG(perf_counters[i]->ident, *perf_counters[i]);
}
rarch_perf_tick_t rarch_get_perf_counter(void)
{
rarch_perf_tick_t time = 0;
#ifdef _XBOX1
#define rdtsc __asm __emit 0fh __asm __emit 031h
LARGE_INTEGER time_tmp;
rdtsc;
__asm mov time_tmp.LowPart, eax;
__asm mov time_tmp.HighPart, edx;
time = time_tmp.QuadPart;
#elif defined(__linux__)
struct timespec tv;
if (clock_gettime(CLOCK_MONOTONIC, &tv) == 0)
time = (rarch_perf_tick_t)tv.tv_sec * 1000000000 + (rarch_perf_tick_t)tv.tv_nsec;
else
time = 0;
#elif defined(__GNUC__) && !defined(RARCH_CONSOLE)
#if defined(__i386__) || defined(__i486__)
asm volatile ("rdtsc" : "=A" (time));
#elif defined(__x86_64__)
unsigned a, d;
asm volatile ("rdtsc" : "=a" (a), "=d" (d));
time = (rarch_perf_tick_t)a | ((rarch_perf_tick_t)d << 32);
#endif
#elif defined(__ARM_ARCH_6__) || defined(ANDROID)
asm volatile( "mrc p15, 0, %0, c9, c13, 0" : "=r"(time) );
#elif defined(__CELLOS_LV2__) || defined(GEKKO) || defined(_XBOX360)
time = __mftb();
#endif
return time;
}