wez/wezterm
1
1
Fork 0
mirror of https://github.com/wez/wezterm.git synced 2024-12-24 22:01:47 +03:00
Code Issues Projects Releases Wiki Activity

gui: make a separate quad allocation pass for image cells

Browse Source 
This should help to avoid artifacts in the case where glyphs
render outside their nominal terminal cell (happens when the
shaper tweaks positioning, and/or when ligatures are involved).

Previously we'd render the layers in z-index order for cell N
before the layers in z-index order for cell N+1.

If N had an image that overlayed the text (nominally z-index 0.5!)
and the glyph in N+1 (z-index 0) was slightly to the left of its
border, then it could layer incorrectly over the cell to the left.
This commit is contained in:
Wez Furlong 2021-08-06 08:57:19 -07:00
parent 3ea13fb530
commit aac4d36d6e
1 changed files with 54 additions and 59 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
wezterm-gui/src/termwindow/render.rs
View File

@ -783,6 +783,8 @@ impl super::TermWindow {
current_idx = 0;
let mut overlay_images = vec![];
for cluster in &cell_clusters {
if !matches!(last_style.as_ref(), Some(ClusterStyleCache{attrs,..}) if *attrs == &cluster.attrs)
{
@ -1050,11 +1052,7 @@ impl super::TermWindow {
}
if !did_custom {
let texture = glyph
.texture
.as_ref()
.unwrap_or(&gl_state.util_sprites.white_space);
if let Some(texture) = glyph.texture.as_ref() {
let left = info.pos.x_offset.get() as f32 + info.pos.bearing_x;
let slice = SpriteSlice {
cell_idx: glyph_idx,
@ -1105,18 +1103,11 @@ impl super::TermWindow {
quad.set_has_color(glyph.has_color);
}
}
}
for img in &images {
for img in images {
if img.z_index() >= 0 {
self.populate_image_quad(
&img,
gl_state,
quads,
cell_idx,
&params,
hsv,
glyph_color,
)?;
overlay_images.push((cell_idx, img, glyph_color));
}
}
}
@ -1124,6 +1115,10 @@ impl super::TermWindow {
}
}
for (cell_idx, img, glyph_color) in overlay_images {
self.populate_image_quad(&img, gl_state, quads, cell_idx, &params, hsv, glyph_color)?;
}
// If the clusters don't extend to the full physical width of the display,
// we have a little bit more work to do to ensure that we correctly paint:
// * Selection