mirrors/foot
1
0
Fork 0
mirror of https://codeberg.org/dnkl/foot.git synced 2026-02-05 04:06:08 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

render: subtract current frame’s damage when there’s no scroll damage

Browse source 
When re-applying the previous frame’s damage (due to us being forced
to double buffer), subtract the current frame’s damage from the
region-to-copy when there’s no scroll damage on the current frame.

When the current frame doesn’t have any scroll damage, the current
frame’s damage is in the same coordinate system as the previous
frame’s damage, and we can safely remove it from the region we copy
from.
This commit is contained in:
Daniel Eklöf 2021-05-08 09:18:45 +02:00
parent 15bfeea745
commit a1d2044d75
No known key found for this signature in database
GPG key ID: 5BBD4992C116573F
1 changed files with 6 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

16
render.c
View file

@ -2099,7 +2099,6 @@ grid_render(struct terminal *term)
tll_free(term->render.last_buf->scroll_damage);
#else
#if 0
/*
* TODO: remove this frame’s damage from the region we
* copy from the old frame.
@ -2138,7 +2137,7 @@ grid_render(struct terminal *term)
term->cell_height);
}
}
#endif
tll_foreach(term->render.last_buf->scroll_damage, it) {
switch (it->item.type) {
case DAMAGE_SCROLL:
@ -2163,21 +2162,18 @@ grid_render(struct terminal *term)
tll_remove(term->render.last_buf->scroll_damage, it);
}
#if 0
pixman_region32_subtract(&dirty, &term->render.last_buf->dirty, &dirty);
pixman_image_set_clip_region32(buf->pix[0], &dirty);
#else
pixman_image_set_clip_region32(buf->pix[0], &term->render.last_buf->dirty);
#endif
if (tll_length(term->grid->scroll_damage) == 0) {
pixman_region32_subtract(&dirty, &term->render.last_buf->dirty, &dirty);
pixman_image_set_clip_region32(buf->pix[0], &dirty);
} else
pixman_image_set_clip_region32(buf->pix[0], &term->render.last_buf->dirty);
pixman_image_composite32(
PIXMAN_OP_SRC, term->render.last_buf->pix[0], NULL, buf->pix[0],
0, 0, 0, 0, 0, 0, term->width, term->height);
pixman_image_set_clip_region32(buf->pix[0], NULL);
#if 0
pixman_region32_fini(&dirty);
#endif
#endif
}