/* motion test. (c) 2001 Fabrice Bellard. */ /** * @file motion_test.c * motion test. */ #include <stdlib.h> #include <stdio.h> #include <string.h> #include <sys/time.h> #include <unistd.h> #include "dsputil.h" #include "i386/mmx.h" int pix_abs16x16_mmx(uint8_t *blk1, uint8_t *blk2, int lx); int pix_abs16x16_mmx1(uint8_t *blk1, uint8_t *blk2, int lx); int pix_abs16x16_x2_mmx(uint8_t *blk1, uint8_t *blk2, int lx); int pix_abs16x16_x2_mmx1(uint8_t *blk1, uint8_t *blk2, int lx); int pix_abs16x16_x2_c(uint8_t *blk1, uint8_t *blk2, int lx); int pix_abs16x16_y2_mmx(uint8_t *blk1, uint8_t *blk2, int lx); int pix_abs16x16_y2_mmx1(uint8_t *blk1, uint8_t *blk2, int lx); int pix_abs16x16_y2_c(uint8_t *blk1, uint8_t *blk2, int lx); int pix_abs16x16_xy2_mmx(uint8_t *blk1, uint8_t *blk2, int lx); int pix_abs16x16_xy2_mmx1(uint8_t *blk1, uint8_t *blk2, int lx); int pix_abs16x16_xy2_c(uint8_t *blk1, uint8_t *blk2, int lx); typedef int motion_func(uint8_t *blk1, uint8_t *blk2, int lx); #define WIDTH 64 #define HEIGHT 64 uint8_t img1[WIDTH * HEIGHT]; uint8_t img2[WIDTH * HEIGHT]; void fill_random(uint8_t *tab, int size) { int i; for(i=0;i<size;i++) { #if 1 tab[i] = random() % 256; #else tab[i] = i; #endif } } void help(void) { printf("motion-test [-h]\n" "test motion implementations\n"); exit(1); } int64_t gettime(void) { struct timeval tv; gettimeofday(&tv,NULL); return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec; } #define NB_ITS 500 int dummy; void test_motion(const char *name, motion_func *test_func, motion_func *ref_func) { int x, y, d1, d2, it; uint8_t *ptr; int64_t ti; printf("testing '%s'\n", name); /* test correctness */ for(it=0;it<20;it++) { fill_random(img1, WIDTH * HEIGHT); fill_random(img2, WIDTH * HEIGHT); for(y=0;y<HEIGHT-17;y++) { for(x=0;x<WIDTH-17;x++) { ptr = img2 + y * WIDTH + x; d1 = test_func(img1, ptr, WIDTH); d2 = ref_func(img1, ptr, WIDTH); if (d1 != d2) { printf("error: mmx=%d c=%d\n", d1, d2); } } } } emms(); /* speed test */ ti = gettime(); d1 = 0; for(it=0;it<NB_ITS;it++) { for(y=0;y<HEIGHT-17;y++) { for(x=0;x<WIDTH-17;x++) { ptr = img2 + y * WIDTH + x; d1 += test_func(img1, ptr, WIDTH); } } } emms(); dummy = d1; /* avoid optimisation */ ti = gettime() - ti; printf(" %0.0f kop/s\n", (double)NB_ITS * (WIDTH - 16) * (HEIGHT - 16) / (double)(ti / 1000.0)); } int main(int argc, char **argv) { int c; for(;;) { c = getopt(argc, argv, "h"); if (c == -1) break; switch(c) { case 'h': help(); break; } } printf("ffmpeg motion test\n"); test_motion("mmx", pix_abs16x16_mmx, pix_abs16x16_c); test_motion("mmx_x2", pix_abs16x16_x2_mmx, pix_abs16x16_x2_c); test_motion("mmx_y2", pix_abs16x16_y2_mmx, pix_abs16x16_y2_c); test_motion("mmx_xy2", pix_abs16x16_xy2_mmx, pix_abs16x16_xy2_c); return 0; }