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desktop-shell: Make backgrounds fully opaque

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Non-opaque backgrounds don't make sense, and cause rendering
problems.

Silently set backgrounds fully opaque, and remove any mention of
alpha from the man page.

Kiosk-shell already implicitly forces opaque backgrounds.

Old weston.ini with FF for alpha will always continue to work.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
This commit is contained in:
Derek Foreman 2024-12-11 10:03:37 -06:00
parent 68761d3f11
commit 264c205add
3 changed files with 6 additions and 3 deletions
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3
clients/desktop-shell.c
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@ -1191,6 +1191,9 @@ background_create(struct desktop *desktop, struct output *output)
weston_config_section_get_color(s, "background-color",
&background->color, 0x00000000);
/* Backgrounds must be fully opaque. */
background->color |= 0xFF000000;
weston_config_section_get_string(s, "background-type",
&type, "tile");
if (type == NULL) {

4
man/weston.ini.man
View file

@ -401,9 +401,9 @@ enough to cover the output, and centers it. The image ends up cropped from
left and right, or top and bottom, if the aspect ratio does not match the
output. Tile repeats the background image to fill the output.
.TP 7
.BI "background-color=" 0xAARRGGBB
.BI "background-color=" 0xRRGGBB
sets the color of the background (unsigned integer). The hexadecimal
digit pairs are in order alpha, red, green, and blue.
digit pairs are in order red, green, and blue.
.TP 7
.BI "clock-format=" format
sets the panel clock format (string). Can be

2
weston.ini.in
View file

@ -7,7 +7,7 @@
[shell]
background-image=/usr/share/backgrounds/gnome/Aqua.jpg
background-color=0xff002244
background-color=0x002244
background-type=tile
clock-format=minutes
panel-color=0x90ff0000