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2325 Commits

Author SHA1 Message Date
Matthias Clasen
f3312f677b measure: Cosmetics 2023-08-28 21:14:28 -04:00
Matthias Clasen
05547d98d6 path: Cosmetics 
Reorganize this source file into sections.
 2023-08-28 21:13:58 -04:00
Matthias Clasen
11b219bc61 Drop tolerance from gsk_contour_foreach 
There is no decomposition going on for any contours,
and the tolerance argument is entirely unused.
Decomposition and tolerance is handled entirely
in gskpath.c by its trampoline.
 2023-08-28 20:52:22 -04:00
Matthias Clasen
827bbc0cc1 Change gsk_path_get_closest_point to return distance 
We already compute it, so lets return it.
Bindings seems fine with this change - they
already return (success, point) as a tuple
anyway.
 2023-08-28 11:22:30 -04:00
Matthias Clasen
5a3ed65ad8 Improve precondition checks for path points 
Add a helper function for checking that a
path point is valid for a path, and use it.
 2023-08-28 00:07:50 -04:00
Matthias Clasen
2e24a9ece4 Make GskPathPoint public 
The contents are still /*< private >*/, but we
let our tests and the debugger see them, which
helps.
 2023-08-28 00:07:50 -04:00
Matthias Clasen
2a17320314 Limit rect variation in path builder 
Make gsk_path_builder_add_rect always
produce a clockwise rectangle. This matches
what we do for circles and rounded rects,
which also go clockwise. Note that we
still need to allow negative widths in
the contour code, to implement reverse().
 2023-08-28 00:07:50 -04:00
Matthias Clasen
0dbff14555 Allow circles with radius of zero 
Not very useful, but we allow rects with
width and height of zero, so lets be consistent.
Curvature is infinite for such contours.

Tests included.
 2023-08-28 00:07:50 -04:00
Matthias Clasen
6f3be310f4 contour: Simplify gsk_circle_contour_foreach 
Use the same approach as the rounded rect contour.
 2023-08-27 21:31:40 -04:00
Matthias Clasen
2ca9982b91 rect contour: Avoid nans in corner cases 
The length of rect contours can be zero,
so we much check before we divide.
 2023-08-27 19:17:02 -04:00
Matthias Clasen
a40282b2fb Add gsk_path_point_print 
Another private debug API.
 2023-08-27 19:06:39 -04:00
Matthias Clasen
ad9fb1e101 Improve quad and conic decomposition 
If the control point is equal to either
start or end, just emit a line. This improves
the rendering of rounded rectangles with such
corners.
 2023-08-27 16:57:03 -04:00
Matthias Clasen
02a9652af4 Use a more compact representation for circles 
Print circles as M-o-o-o-o-z.
 2023-08-27 14:32:21 -04:00
Matthias Clasen
0a28a5d53a Add a rectangle contour 
Add a contour that optimizes some things for
rectangles. Also add rectangle detection to the
path parser, and add tests similar to what we
have for the other special contours.
 2023-08-27 12:36:56 -04:00
Matthias Clasen
1e6a124665 Correct the docs of gsk_path_builder_add_rect 
The path does *not* always go clockwise!
 2023-08-27 12:18:36 -04:00
Matthias Clasen
8d1844135b path: Add a comment 2023-08-27 10:10:08 -04:00
Matthias Clasen
b5dd9dae0d rounded rect contour: Fix an oversight 
The close operation takes 2 points, so our array
was one too short. Oops.
 2023-08-27 10:09:32 -04:00
Matthias Clasen
ebcb518e4f Cosmetics 2023-08-27 09:50:16 -04:00
Matthias Clasen
b7ea22f168 Drop unused code 
Nobody is calling gsk_contour_get_start_end, so drop
this internal API.
 2023-08-27 09:39:59 -04:00
Matthias Clasen
822e988efe path: Recognize rounded rects when parsing 
We can look out for M-L-O-L-O-L-O-L-O-Z patterns
with matching numbers.
 2023-08-27 09:31:17 -04:00
Matthias Clasen
cee043f977 Add a rounded rect contour 
This special contour takes advantage of its
rounded-rect-ness for speeding up bounding
boxes and winding numbers. It falls back
to the standard contour code for everything
else.
 2023-08-27 09:29:19 -04:00
Matthias Clasen
031c0ec3e5 pathpoint: Add some debug API 
Add a private gsk_path_point_to_string that
can be called in the debugger if you want
to see the contents of a GskPathPoint and
are too lazy to cast it to GskRealPathPoint
yourself.
 2023-08-27 09:14:47 -04:00
Matthias Clasen
ba3a657c48 contour: Add some debug API 
Add a private  way to get the class of a contour,
so we can test that roundtrips through gsk_path_parse
work as expected.
 2023-08-27 09:13:32 -04:00
Matthias Clasen
5f2f116c28 circle contour: Fix a typo 2023-08-27 07:43:55 -04:00
Matthias Clasen
2297a353b8 Merge branch 'circle-contour' into 'main' 
path: Add a circle contour

See merge request GNOME/gtk!6345
 2023-08-27 11:12:51 +00:00
Bilal Elmoussaoui
7342ce5bca gi: Add missing since annotation 2023-08-27 08:17:00 +00:00
Matthias Clasen
167b38dfa1 contour: Some reactoring 
Make a default print implementation, and use it.
 2023-08-26 23:42:52 -04:00
Matthias Clasen
b8a3d7fa00 path: Recognize circles when parsing 
We can look out for the tell-tale
M-O-O-O-O-Z and turn it into a circle
contour.
 2023-08-26 23:42:52 -04:00
Matthias Clasen
0fce24674a path: Add a circle contour 
This special contour takes advantage of the
circle definition to speed up things like
hit testing and closest point determination.
 2023-08-26 23:42:52 -04:00
Matthias Clasen
99ad585252 Merge branch 'measure-speedups' into 'main' 
contour: Stop doing the roundtrip test

See merge request GNOME/gtk!6342
 2023-08-27 01:13:41 +00:00
Matthias Clasen
6defdb4e8a Drop unused code 
we are not using any gsk_spline functions currently.
 2023-08-26 11:29:09 -04:00
Matthias Clasen
c989a06718 pathmeasure: compute samples on demand 
Only do the work for a curve the first time
we need it. This should greatly speed up
use cases where you only create a measure
to get the length of the path.
 2023-08-26 10:23:02 -04:00
Matthias Clasen
1c8bd8658d curve: Cosmetics 2023-08-26 10:23:02 -04:00
Matthias Clasen
ab50cba4e9 curve: Reduce the order of our approximation 
Use 24 samples instead of 32.
 2023-08-26 10:23:02 -04:00
Matthias Clasen
57918813e2 contour: Stop doing the roundtrip test 
Doing inverse arclength computations is
a very high overhead operation. And the
tests still pass without it.
 2023-08-26 09:39:49 -04:00
Matthias Clasen
677e19042d Docs: Cosmetics 2023-08-25 22:21:27 -04:00
Matthias Clasen
bd79f61cc5 pathpoint: Update the docs 
We have gained some more ways of getting points.
 2023-08-25 22:03:42 -04:00
Matthias Clasen
361cdecfe4 Merge branch 'path-measure-reredone' into 'main' 
Add GskPathMeasure

See merge request GNOME/gtk!6326
 2023-08-26 01:05:19 +00:00
Matthias Clasen
007cfeac94 Add GskPathMeasure 
GskPathMeasure is the public API for path lengths.
 2023-08-25 20:16:49 -04:00
Matthias Clasen
553499522c contour: Add measure API 
In order to compute path lengths efficiently, we need
to cache lookup tables. This commit adds API to let
contours allocate and free such measure data, as well
as API to use the data to go length -> point and
vice versa.
 2023-08-25 20:16:49 -04:00
Benjamin Otte
81821978ae Merge branch 'wip/otte/for-main' into 'main' 
gltexture: Restore previous GL context

See merge request GNOME/gtk!6335
 2023-08-25 21:44:17 +00:00
Matthias Clasen
04e6fc3f74 curve: Add length computation 
Add api to go t<>length.

The code here is inspired by
https://pomax.github.io/bezierinfo/#arclength
 2023-08-25 16:13:36 -04:00
Benjamin Otte
54d2f0063a Merge branch 'replay' into 'main' 
Node replay tests

See merge request GNOME/gtk!6299
 2023-08-25 19:45:34 +00:00
Benjamin Otte
ae7ec40cf2 rendernodeparser: Generate better default child 
... for fill and stroke nodes.

It's most likely we want the path bounds (or path stroke bounds),
so make the parser use those by default.
 2023-08-25 21:12:12 +02:00
Matthias Clasen
eec90d1026 pathbuilder: Add rel-variants for arc-to 
Add rel-variants for all our arc-to APIs. This is
a pretty harmless addition, and it is more consistent
to have these for all ..._to functions.
 2023-08-25 09:45:45 -04:00
Matthias Clasen
f4fb4d04e5 Some pathbuilder doc clarifications 
Mention the end point of the html arc-to call.
 2023-08-25 09:37:07 -04:00
Matthias Clasen
3283157352 Bring arc_to back as convenience API 
It is our main use of conics, so make it an API,
and use it internally.
 2023-08-25 09:31:19 -04:00
Sergey Bugaev
d07a6b8566 snapshot, gsktransform: Mention that rotation happens around (0, 0) 
...and not around the center of the render node, as one could expect
given that the render node syntax for rotation, transform: rotate(90);,
happens to match the CSS syntax for the same thing, and CSS does rotate
around the center by default.

Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
 2023-08-25 15:54:05 +03:00
Matthias Clasen
5bc82f4141 Change curve derivative api 
We don't need to have the derivative as a curve,
it is enough for us to compute values of the
derivative at a given t, which we can also do
for conics.
 2023-08-25 07:33:16 -04:00
Matthias Clasen
25e6231a88 path: Switch back to conics 
Arcs were appealing, but they have a fatal flaw: we can't
split our arcs without changing the ellipse they trace.
That could be fixed by adding an extra parameter, but then
it is no longer any better than conics.

So switch back to conics, which have the advantage that they
are used elsewhere.
 2023-08-25 07:33:16 -04:00
Matthias Clasen
5dc0cbc20f Expand the path docs a bit 2023-08-24 15:00:14 -04:00
Matthias Clasen
e1faf28310 Make curvature api more flexible 
Add an extra direction argument to get_curvature to
allow picking the limit on either side, for sharp turns.

Update all callers.
 2023-08-24 14:32:33 -04:00
Matthias Clasen
854c695153 pathpoint docs: Fix a link 
Links gsk->gtk must be done manually, since we
don't have a dependency.
 2023-08-24 13:41:39 -04:00
Matthias Clasen
ebd4ceca15 path docs: Clarify curvature 
The curvature of lines is zero, not infinite.
 2023-08-24 11:15:51 -04:00
Matthias Clasen
d873643407 path docs: Add another illustration 2023-08-24 11:09:28 -04:00
Matthias Clasen
4229a37e90 arc: Fix the derivative 
Scale the derivative such that computing the arc length
of a unit quarter circle wil produce the expected result
of PI/2.
 2023-08-23 22:18:52 -04:00
Matthias Clasen
12297fd88a arc curve: Simplify derivative 2023-08-23 22:11:22 -04:00
Matthias Clasen
7943610066 curve: Fix arc decomposition 2023-08-23 22:11:15 -04:00
Matthias Clasen
f6c2b6bb88 Make foreach work efficiently with arcs 2023-08-23 14:51:31 -04:00
Matthias Clasen
4ab03e79b7 Drop some unnecessary code 
We tell path_foreach to split into lines or cubics,
so no point in having code to handle quads and arcs.
 2023-08-23 14:33:25 -04:00
Matthias Clasen
7a12abdea3 Incorporate review feedback 2023-08-23 14:16:43 -04:00
Matthias Clasen
71584107b0 Add gsk_path_builder_html_arc_to 
This one draws circular arcs with a given radius.
 2023-08-23 12:43:52 -04:00
Matthias Clasen
88c0ace644 Make gsk_path_builder_svg_arc_to public 
This is useful to port SVG paths using this syntax.
 2023-08-23 12:43:52 -04:00
Matthias Clasen
d33ed4f9ab path: Add elliptical arcs 
Add a new curve type for elliptical arcs
and use it for rounded rectangles and circles.
We use the 'E' command to represent elliptical
arcs in serialized paths.
 2023-08-23 12:43:52 -04:00
Benjamin Otte
de8fdd822c Merge branch 'wip/otte/for-main' into 'main' 
widget: Remove unused headers from gtkwidget.h

See merge request GNOME/gtk!6319
 2023-08-22 07:38:57 +00:00
Matthias Clasen
486674927a Make sure stroke bounds are big enough 
Our standard 'empty path' in gtk4-node-editor
was getting its pointy corners cut off.
 2023-08-21 23:59:08 -04:00
Matthias Clasen
b367bf83b4 docs: Tweaks 2023-08-21 22:40:22 -04:00
Matthias Clasen
b84f60877d docs: Drop a nonexisting enum value 2023-08-21 21:52:53 -04:00
Matthias Clasen
fb0f5b5c14 curve: Add a get_crossing vfunc 2023-08-21 11:29:14 -04:00
Matthias Clasen
2b4e577b53 docs: Add more illustrations 
Add illustrations to the various curve_to methods
of GskPathBuilder.
 2023-08-20 22:28:06 -07:00
Benjamin Otte
29cdac18e8 rendernodeparser: Handle dashing in strokes 
That part of the original MR got lost while refactoring.

Put it back.
 2023-08-21 05:23:44 +02:00
Benjamin Otte
418f6b35af gsk: Add gsk_rect_to_float() 
... and use it.
 2023-08-21 05:23:42 +02:00
Benjamin Otte
d665d2fb89 vulkan: Add nonuniformEXT() where needed 
The magical term to know about (because the GLSL compiler or the
validation layers sure as hell don't) is:

  "dynamically uniform expression"

because if you don't have that when indexing a texture or buffer array,
you need to add nonuniformEXT() around the index variable.

Fixes the close icon on AMD having glitches of the previous icon visible
in some pixels.
 2023-08-21 05:19:44 +02:00
Benjamin Otte
8862666b5a build: GSK doesn't depend on gdk-pixbuf 2023-08-21 05:19:37 +02:00
Benjamin Otte
3adf02445f build: Don't use configure_file() when custom_target() works 
These two files don't need to be built when configuring, they are only
needed during build.
 2023-08-21 05:19:37 +02:00
Matthias Clasen
b12a27083d path: Drop special contour parsing 
This is not used currently, since we don't
have custom contours.
 2023-08-18 18:06:44 -04:00
Matthias Clasen
07ec266a00 curve: Add a get_derivative vfunc 2023-08-18 13:46:42 -04:00
Matthias Clasen
88e74ca21e path: Don't accept 'O' as path command 
We don't have conics atm.
 2023-08-18 13:19:48 -04:00
Matthias Clasen
148da12cfc Cosmetics 2023-08-18 13:19:33 -04:00
Matthias Clasen
0c39890e0f contour: Optimize bounds 
Cache the bounds in the contour, and compute
the stroke bounds based on it as well.
 2023-08-18 10:02:14 -04:00
Matthias Clasen
73853f1a6b contour: Add an assertion 2023-08-16 16:18:38 -04:00
Matthias Clasen
8634d67cff Some fixes for gsk_path_builder_add_segment 
We must be careful with single-point contours
that contain just a move. These never occur in
practice, but our randomized tests produce them
regularly.
 2023-08-16 16:15:26 -04:00
Matthias Clasen
125ea90894 Rename an internal function 
We want the number of ops, not the number of points.
 2023-08-16 15:54:46 -04:00
Benjamin Otte
7d5ef1117e Merge branch 'color-matrix' into 'main' 
Color matrix node fixes & clarifications

See merge request GNOME/gtk!6290
 2023-08-16 17:07:35 +00:00
Sergey Bugaev
246a7cfeab rendernode, snapshot: Slightly expand color matrix docs 
Based on reverse engineering the color node and contrary to my
expectations, the matrix/offset is expressed in, and applied to,
unpremultiplied colors. The colors are being explicitly
unpremultiplied, transformed according to the matrix/offset, and
premultiplied back (see color_matrix.glsl). The matrix is getting
transposed.

Also, copy the same blurb to the corresponding GtkSnapshot function.

Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
 2023-08-16 13:55:04 +03:00
Philip Chimento
823cb714ec introspection: Remove 'caller-allocates' from POD types 
The (out caller-allocates) and (out callee-allocates) annotations are
meant for structured or pointer types. Plain old data types are just
regular out parameters and don't need the annotation about who allocates
them.

See glib!2005, gjs#570
 2023-08-15 22:30:27 -07:00
Matthias Clasen
5cf9a09c07 gsk: Add more details to the docs 2023-08-15 12:38:24 -04:00
Matthias Clasen
45aa8e4e00 Fix GskStandardContour to have a 'good' size 
We need the size of GskStandardContour to be
at least as aligned as graphene_point_t, or
things break in hard to debug ways.
 2023-08-14 15:59:45 -04:00
Matthias Clasen
a85ab3585e Revise gsk_path_point_get_tangent 
Update the directions enum to allow all four
tangents to be obtained. Add an illustration
to the docs for clarity.

Update all callers.
 2023-08-14 14:58:22 -04:00
Matthias Clasen
a1d40c5236 Add gsk_path_point_get_rotation 
This returns the tangent in the form of an angle.
 2023-08-14 14:58:22 -04:00
Matthias Clasen
6ace4b60d8 pathpoint: Revise argument order 
In order for introspection and documentation to
not be confused, we need to have the GskPathPoint
be the first argument.

Update all callers.
 2023-08-14 13:20:34 -04:00
Bilal Elmoussaoui
f5d47a4658 gi: Add missing since annotation 2023-08-14 08:41:12 +00:00
Matthias Clasen
4b7e1b1233 Fix gsk_path_builder_add_segment 
We were splitting the last segment, but did not
actually use the result of the split. Oops.
 2023-08-13 09:40:19 -04:00
Benjamin Otte
73500f9ebb Merge branch 'wip/otte/for-main' into 'main' 
treeviewcolumn: Set ascending class for ascending order

Closes #6002

See merge request GNOME/gtk!6277
 2023-08-13 03:54:19 +00:00
Benjamin Otte
67a4279d3f rendernode: Put typedef into gsktypes.h 
Makes includes simpler for headers that want to use GskRenderNode.
 2023-08-12 23:13:47 +02:00
Benjamin Otte
dd4b8a4c89 gl: Pass swizzle array directly 
There's no need to pass pointers to arrays, as arrays are already
pointers.
 2023-08-12 23:13:23 +02:00
Benjamin Otte
d1c7376b05 gdkcontext: Make has_unpack_subimage() do the version check 
Makes the code look simpler when we actually use that function.
 2023-08-12 23:13:23 +02:00
Matthias Clasen
11f48f3c5b Add gsk_path_builder_add_rounded_rect 
For now, this is using gsk_path_builder_svg_arc_to
to approximate elliptical arcs.
 2023-08-12 15:34:54 -04:00
Matthias Clasen
fa4ad1590d Merge branch 'matthiasc/for-main' into 'main' 
path: Some documentation improvements

See merge request GNOME/gtk!6273
 2023-08-11 16:42:25 +00:00
Matthias Clasen
47ddc742fc path: Some documentation improvements 
Among other things, add a quick summary of
SVG path syntax, and add a few illustrations.
 2023-08-11 12:09:12 -04:00