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Move presum_gaussian to render.c

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Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui
2018-12-16 02:49:31 +00:00
parent a48e1f65a9
commit 404a6b47ad
2 changed files with 47 additions and 51 deletions
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51
src/compton.c
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@ -403,54 +403,6 @@ run_fade(session_t *ps, win *w, unsigned steps) {
}
}
// === Shadows ===
/* precompute shadow corners and sides
to save time for large windows */
static void
presum_gaussian(session_t *ps, conv *map) {
int center = map->size / 2;
int opacity, x, y;
ps->cgsize = map->size;
if (ps->shadow_corner)
free(ps->shadow_corner);
if (ps->shadow_top)
free(ps->shadow_top);
ps->shadow_corner = cvalloc((ps->cgsize + 1) * (ps->cgsize + 1) * 26);
ps->shadow_top = cvalloc((ps->cgsize + 1) * 26);
for (x = 0; x <= ps->cgsize; x++) {
ps->shadow_top[25 * (ps->cgsize + 1) + x] = (unsigned char)
(sum_kernel(map, x - center, center, ps->cgsize * 2, ps->cgsize * 2) * 255.0);
for (opacity = 0; opacity < 25; opacity++) {
ps->shadow_top[opacity * (ps->cgsize + 1) + x] =
ps->shadow_top[25 * (ps->cgsize + 1) + x] * opacity / 25;
}
for (y = 0; y <= x; y++) {
ps->shadow_corner[25 * (ps->cgsize + 1) * (ps->cgsize + 1) + y * (ps->cgsize + 1) + x]
= (unsigned char)
(sum_kernel(map, x - center, y - center, ps->cgsize * 2, ps->cgsize * 2) * 255.0);
ps->shadow_corner[25 * (ps->cgsize + 1) * (ps->cgsize + 1) + x * (ps->cgsize + 1) + y]
= ps->shadow_corner[25 * (ps->cgsize + 1) * (ps->cgsize + 1) + y * (ps->cgsize + 1) + x];
for (opacity = 0; opacity < 25; opacity++) {
ps->shadow_corner[opacity * (ps->cgsize + 1) * (ps->cgsize + 1)
+ y * (ps->cgsize + 1) + x]
= ps->shadow_corner[opacity * (ps->cgsize + 1) * (ps->cgsize + 1)
+ x * (ps->cgsize + 1) + y]
= ps->shadow_corner[25 * (ps->cgsize + 1) * (ps->cgsize + 1)
+ y * (ps->cgsize + 1) + x] * opacity / 25;
}
}
}
}
// === Error handling ===
static void
@ -3851,9 +3803,6 @@ session_init(session_t *ps_old, int argc, char **argv) {
init_atoms(ps);
ps->gaussian_map = gaussian_kernel(ps->o.shadow_radius);
presum_gaussian(ps, ps->gaussian_map);
{
xcb_render_create_picture_value_list_t pa = {
.subwindowmode = IncludeInferiors,