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/*
* MMX optimized DSP utils
* Copyright (c) 2000, 2001 Gerard Lantau.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#define TESTCPU_MAIN
#include "dsputil.h"
#include "../libavcodec/i386/cputest.c"
#include "../libavcodec/i386/dsputil_mmx.c"
#undef TESTCPU_MAIN
#define PAD 0x10000
/*
* for testing speed of various routine - should be probably extended
* for a general purpose regression test later
*
* currently only for i386 - FIXME
*/
static const struct pix_func {
char* name;
op_pixels_func func;
int mm_flags;
} pix_func[] = {
{ "put_pixels_x2_mmx", put_pixels_y2_mmx, MM_MMX },
{ "put_pixels_x2_3dnow", put_pixels_y2_3dnow, MM_3DNOW },
{ "put_pixels_x2_mmx2", put_pixels_y2_mmx2, MM_MMXEXT | PAD },
{ "put_no_rnd_pixels_x2_mmx", put_no_rnd_pixels_x2_mmx, MM_MMX },
{ "put_no_rnd_pixels_x2_3dnow", put_no_rnd_pixels_x2_3dnow, MM_3DNOW },
{ "put_no_rnd_pixels_x2_mmx2", put_no_rnd_pixels_x2_mmx2, MM_MMXEXT | PAD },
{ "put_pixels_y2_mmx", put_pixels_y2_mmx, MM_MMX },
{ "put_pixels_y2_3dnow", put_pixels_y2_3dnow, MM_3DNOW },
{ "put_pixels_y2_mmx2", put_pixels_y2_mmx2, MM_MMXEXT | PAD },
{ 0, 0 }
};
static inline long long rdtsc()
{
long long l;
asm volatile( "rdtsc\n\t"
: "=A" (l)
);
return l;
}
static test_speed(int step)
{
const struct pix_func* pix = pix_func;
const int linesize = 720;
char empty[32768];
char* bu =(char*)(((long)empty + 32) & ~0xf);
while (pix->name)
{
int i;
uint64_t te, ts;
op_pixels_func func = pix->func;
char* im = bu;
if (!(pix->mm_flags & mm_flags))
continue;
printf("%30s... ", pix->name);
fflush(stdout);
ts = rdtsc();
for(i=0; i<100000; i++){
func(im, im + 1000, linesize, 16);
im += step;
if (im > bu + 20000)
im = bu;
}
te = rdtsc();
emms();
printf("% 9d\n", (int)(te - ts));
if (pix->mm_flags & PAD)
puts("");
pix++;
}
}
int main(int argc, char* argv[])
{
int step = 16;
if (argc > 1)
{
// something simple for now
if (argc > 2 && (strcmp("-s", argv[1]) == 0
|| strcmp("-step", argv[1]) == 0))
step = atoi(argv[2]);
}
mm_flags = mm_support();
printf("dsptest: CPU flags:");
if (mm_flags & MM_MMX)
printf(" mmx");
if (mm_flags & MM_MMXEXT)
printf(" mmxext");
if (mm_flags & MM_3DNOW)
printf(" 3dnow");
if (mm_flags & MM_SSE)
printf(" sse");
if (mm_flags & MM_SSE2)
printf(" sse2");
printf("\n");
printf("Using step: %d\n", step);
test_speed(step);
}
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