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speedup scaling down....... but i cant seem to get any speedup for up scaling 

SVN revision: 2367
This commit is contained in:
Carsten Haitzler 2000-03-28 22:25:45 +00:00
parent 87146f0a33
commit 0780bd87ac
2 changed files with 845 additions and 810 deletions
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1583
src/scale.c
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72
test/main.c
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@ -72,6 +72,7 @@ int main (int argc, char **argv)
int blendtest = 0;
int rotate = 0;
int rottest = 0;
int scaleup = 0;
for (i = 1; i < argc; i++)
{
@ -86,6 +87,8 @@ int main (int argc, char **argv)
interactive = 0;
loop = 1;
}
else if (!strcmp(argv[i], "-up"))
scaleup = 1;
else if (!strcmp(argv[i], "-blend"))
blend = 1;
else if (!strcmp(argv[i], "-blendtest"))
@ -165,7 +168,10 @@ int main (int argc, char **argv)
{
if (!root)
{
XResizeWindow(disp, win, w, h);
if (scaleup)
XResizeWindow(disp, win, w * 4, h * 4);
else
XResizeWindow(disp, win, w, h);
XMapWindow(disp, win);
}
if (scale)
@ -178,9 +184,6 @@ int main (int argc, char **argv)
XSync(disp, False);
}
printf("rend\n");
gettimeofday(&timev,NULL);
sec1=(int)timev.tv_sec; /* and stores it so we can time outselves */
usec1=(int)timev.tv_usec; /* we will use this to vary speed of rot */
if (!blendtest)
{
@ -196,13 +199,55 @@ int main (int argc, char **argv)
imlib_context_set_operation(IMLIB_OP_COPY);
imlib_context_set_image(im);
gettimeofday(&timev,NULL);
sec1=(int)timev.tv_sec; /* and stores it so we can time outselves */
usec1=(int)timev.tv_usec; /* we will use this to vary speed of rot */
if (loop)
{
for (i = 0; i < w; i++)
if (scaleup)
{
imlib_render_image_on_drawable_at_size(0, 0,
w - i, (((w - i) * h) / w));
pixels += (w - i) * (((w - i) * h) / w);
for (i = 0; i < w * 3; i+= 8)
{
if (!blendtest)
imlib_render_image_on_drawable_at_size(0, 0,
w + i, (((w + i) * h) / w));
else
{
Imlib_Image im_tmp;
im_tmp = imlib_create_cropped_scaled_image(0, 0, w, h,
w + i, (((w + i) * h) / w));
if (im_tmp)
{
imlib_context_set_image(im_tmp);
imlib_free_image();
}
imlib_context_set_image(im);
}
pixels += (w - i) * (((w - i) * h) / w);
}
}
else
{
for (i = 0; i < w; i++)
{
if (!blendtest)
imlib_render_image_on_drawable_at_size(0, 0,
w - i, (((w - i) * h) / w));
else
{
Imlib_Image im_tmp;
im_tmp = imlib_create_cropped_scaled_image(0, 0, w, h,
w - i, (((w - i) * h) / w));
if (im_tmp)
{
imlib_context_set_image(im_tmp);
imlib_free_image();
}
imlib_context_set_image(im);
}
pixels += (w - i) * (((w - i) * h) / w);
}
}
}
else if (blendtest)
@ -520,14 +565,13 @@ int main (int argc, char **argv)
sec2=(int)timev.tv_sec; /* and stores it so we can time outselves */
usec2=(int)timev.tv_usec; /* we will use this to vary speed of rot */
printf("done\n");
i = sec2 - sec1;
j = usec2 - usec1;
while (j < 0)
{
i++;
j += 1000000;
double t1, t2;
t1 = (double)sec1 + ((double)usec1 / 1000000);
t2 = (double)sec2 + ((double)usec2 / 1000000);
sec = t2 - t1;
}
sec = (double)i + ((double)j / 1000000);
printf("%3.3f sec, %3.3f M pixels (%i)\n", sec, (double)pixels / 1000000, pixels);
printf("%3.3f Mpixels / sec\n", (double)(pixels) / (sec * 1000000));
return 0;