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tweaking the speedtest

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tTh
2024-08-16 03:22:55 +02:00
parent f4c3825186
commit 725ccf3c87
3 changed files with 21 additions and 12 deletions
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2
Lib/.gitignore vendored
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@@ -1,4 +1,6 @@
*.png
*.gif
cflow.txt

24
Lib/foo.c
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@@ -17,14 +17,12 @@
*/
#define PIXEL_COPY(ip, ix, iy, op, ox, oy) \
do { \
op->Rpix[oy][x] = ip->Rpix[y][x]; \
op->Gpix[oy][x] = ip->Gpix[y][x]; \
op->Bpix[oy][x] = ip->Bpix[y][x]; \
(op->Rpix[oy])[ox] = (ip->Rpix[iy])[ix]; \
(op->Gpix[oy])[ox] = (ip->Gpix[iy])[ix]; \
(op->Bpix[oy])[ox] = (ip->Bpix[iy])[ix]; \
} while (0)
#define SZPIC 5777
double tthi_dtime(void);
#define SZPIC 4096
void essai_pixcopy(int usemacro)
{
@@ -32,11 +30,13 @@ Image_Desc *alice, *bob;
int x, y, foo;
double T0, T1, perpix;
long count;
char *fname;
alice = Image_alloc(SZPIC, SZPIC, IMAGE_RGB);
bob = Image_alloc(SZPIC, SZPIC, IMAGE_RGB);
Image_pattern_000(alice, rand());
Image_pattern_000(alice, 0);
Image_TGA_save("alice.tga", alice, 0);
T0 = tthi_dtime();
count = 0L;
@@ -48,6 +48,7 @@ if (usemacro) {
count++;
}
}
fname = "bob1.tga";
}
else {
for (y=0; y<SZPIC; y++) {
@@ -56,17 +57,18 @@ else {
count++;
}
}
fname = "bob0.tga";
}
T1 = tthi_dtime();
foo = Image_TGA_save("bob.tga", bob, 0);
foo = Image_TGA_save(fname, bob, 0);
if (foo) {
fprintf(stderr, "%s: save -> %d\n", __func__, foo);
}
perpix = (T1-T0) / (double)count;
fprintf(stderr, "%s : %10ld pixels, elapsed %9.6f seconds ==> %5.3g µs/ppix\n",
perpix = ((T1-T0) / (double)count) * 1e6;
fprintf(stderr, "%s : %10ld pixels, elapsed %9.6f seconds ==> %9.6f µs/pix\n",
usemacro ? "macro" : "func ",
count, T1-T0, perpix);
@@ -79,7 +81,7 @@ int main(int argc, char *argv[])
{
int i;
fprintf(stderr, "******** %s is running *********\n", argv[0]);
fprintf(stderr, "*********** %s ************\n", argv[0]);
if (argc > 1) {
fprintf(stderr, "argument: %s\n", argv[1]);