This copied more or less what the coloring vertex shader was doing in
that we premultiply alpha. That changes how we apply alpha in the fragment
shader to match.

This fixes a white halo around the fonts.

Use a hb font at nominal size when generating sdf
contours, and use a cache key that is independent
of the size.

Store the extent as floats, and drop the unused is_empty
and advance fields. With that, we fit into one cacheline.

This doesn't work correctly yet, as there are lots of bumps along the way
to still smooth out.

This adds a new texture library that can upload SDF data from libglyphy
into regions of a texture atlas so that it can be accessed by Glyphy
shaders in the appropriate place and format.

Some of the placement positioning may seem odd in that it needs to follow
a certain format to be decoded from the Glyphy shaders.

If the text node has color glyphs, then we need to dispatch to the legacy
form of rendering which uses FreeType/Cairo/etc to upload glyphs to a
rendered glyph cache.

Otherwise, we can dispatch to a new function which will eventually use
Glyphy to shape to SDF content and upload to an alternate texture atlas.

This moves a lot of the texture atlas control out of the driver and into
the various texture libraries through their base GskGLTextureLibrary class.

Additionally, this gives more control to libraries on allocating which can
be necessary for some tooling such as future Glyphy integration.

As part of this, the 1x1 pixel initialization is moved to the Glyph library
which is the only place where it is actually needed.

The compact vfunc now is responsible for compaction and it allows for us
to iterate the atlas hashtable a single time instead of twice as we were
doing previously.

The init_atlas vfunc is used to do per-library initialization such as
adding a 1x1 pixel in the Glyph cache used for coloring lines.

The allocate vfunc purely allocates but does no upload. This can be useful
for situations where a library wants to reuse the allocator from the
base class but does not want to actually insert a key/value entry. The
glyph library uses this for it's 1x1 pixel.

In the future, we will also likely want to decouple the rectangle packing
implementation from the atlas structure, or at least move it into a union
so that we do not allocate unused memory for alternate allocators.

This removes the sharing of atlases across various texture libraries. Doing
so is necessary so that atlases can have different semantics for how they
allocate within the texture as well as potentially allowing for different
formats of texture data.

For example, in the future we might store non-pixel data in the textures
such as Glyphy or even keep glyphs with color content separate from glyphs
which do not and can use alpha channel only.

This allows the gskglprograms.defs a bit more control over how a shader
will get generated and if it needs to combine sources. Currently, none of
the built-in shaders do that, but upcoming shaders which come from external
libraries will need the ability to inject additional sources in-between
layers.

This naming style is less likely to collide with shader naming and makes
it clear where it is consumed what it is.

This could potentially happen if a uniform had never been set.

We don't need to clear the front cache on every frame as we can clear it
specifically when we do reclaimation to avoid unnecessary memset() calls.

If the max_entry_size is zero, then assume we can add anything to the
atlas. This allows for situations where we might be uploading an arc list
to the atlas instead of pixel data for GPU font rendering.

This is nice for some texture libraries that we might want to keep around
for longer than say 60 frames such as a glyph cache.

Matthias Clasen authored Mar 18, 2022 and Christian Hergert committed Mar 18, 2022

We want a large font size, but we don't have to
hardcode Sans.

filefilter: Fix <suffixes> in buildable

See merge request !4581

A bug in GtkFileFilter's GtkBuildable implementation caused the
<suffixes> tag not to be recognized.

Milo Casagrande authored Mar 17, 2022 and Administrator committed Mar 17, 2022

(cherry picked from commit 3e4bfa2b)

Milo Casagrande authored Mar 17, 2022 and Administrator committed Mar 17, 2022

(cherry picked from commit 9bbf09fb)

Мирослав Николић authored Mar 17, 2022 and Administrator committed Mar 17, 2022

(cherry picked from commit c874f65d)

gtk/imwayland: Use serial to control outbound messages

Closes #3641

See merge request !4398

Following the text-input protocol changes at
https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/115,
use the serial number to have the client push changes to the
zwp_text_input_v3 object only after compositor/client states match.

This specifically is more lenient to compositors pushing multiple
.done events ahead of the client replying to them.

Closes: #3641

gtkimcontextwayland: Add native surface offset to input coordinates

Closes #4668

See merge request !4573

We were missing the surface offset (e.g. shadows) at the time of expressing
the text caret location in surface coordinates. Add this offset so the
coordinates are as expected by the compositor.

Fixes: #4668

searchentry: Make search delay editable

Closes #4133

See merge request !4563

The default search delay of 150ms can be too low at times[0], leading app
developers to add additional delay while handling the search-changed
signal[1].

Based on past work from hugsie[2].

Fixes #4133

[0] https://github.com/getting-things-gnome/gtg/issues/281
[1] https://github.com/getting-things-gnome/gtg/pull/587
[2] #678

Kjartan Maraas authored Mar 15, 2022 and Administrator committed Mar 15, 2022

(cherry picked from commit 72a55708)

gtkplacessidebar: Prevent calling g_object_unref on null

See merge request !4569

icons: update symbolics

See merge request !4571

build: Avoid objcopy on arm

Closes #4757, #4748, and #4752

See merge request !4567

- match the metaphors/style updates of gnome 42

See #4764

Мирослав Николић authored Mar 15, 2022 and Administrator committed Mar 15, 2022

(cherry picked from commit b59f9b97)

gtk-builder-tool: Operate without display

See merge request !4568

g_object_unref would be called on a null end_icon when provider_account_status
is CLOUD_PROVIDERS_ACCOUNT_STATUS_IDLE

The simplify and validate commands can function
without a display connection, only preview absolutely
needs one. Allow this, by using gtk_init_check().

The trickery we do with objcopy and ld to speed up
resource inclusion does not seem to work right on
32bit Arm, so just skip it there.

Fixes: #4757, #4748, #4752