Commit graph

10784 commits

Author SHA1 Message Date
Pekka Paalanen
54b60ad51a color-lcms: optimize linear TRCs
The icc<->parametric color transformation code uses "optical ICC
profiles" as part of the ICC pipeline. These profiles use a linear TRC
to encode the black point. When such TRC survives all optimizations, it
will cause the 3D LUT fallback path to be taken.

Detect such curve sets on the ICC pipeline optimizer, and convert them
to matrix stages. The matrix stages will then be optimized as usual,
often eliminating the stage completely.

The results can be seen in color-icc-output test after the stock sRGB
profile has been changed into a parametric one, causing all cases in the
test to hit the parametric-to-icc path. Some tests fail when they
suddenly start using the 3D LUT path which causes the errors to rise.
This patch fixes those (future) cases, and the errors remain the same as
before changing the stock profile.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-09 13:00:26 +00:00
Pekka Paalanen
0e474b763f color-lcms: recognize single bounded curve segment
I don't have a specific use case in my mind for this, but it is
something we can easily handle.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-09 13:00:26 +00:00
Pekka Paalanen
df2c7bb370 color-lcms: refactor into get_defining_curve_segment()
I need the new function for another purpose later, and this makes
get_parametric_curveset_params() easier to read.

Pure refactoring: no change in behavior.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-09 13:00:26 +00:00
Pekka Paalanen
2aca058b69 color: add weston_cm_send_parametric_info()
Implementation of sending the protocol info events for an arbitrary
parametric image description.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-09 13:00:26 +00:00
Pekka Paalanen
03cad2e46b color: weston_cm_send_tf() handles power-law
The power-law TF uses a different protocol event than others. Adding
support for it requires passing in the parameters.

Now we have a single send function that handles all protocol TFs, not
just those without parameters.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-09 13:00:26 +00:00
Pekka Paalanen
0dcae1a963 color-lcms: move code into cmlcms_send_icc_info()
Pure refactoring to clean up cmlcms_send_image_desc_info() ahead of
implementing generic parametric information sending.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-09 13:00:26 +00:00
Derek Foreman
be1e58beec clients: Fix crash when removing and reinserting outputs
If we don't receive a surface_leave before an output_destroy, the window
output lists can hold a stale reference to the destroyed output.

Call surface_leave for the output on all windows to make sure it's not on
any lists.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-09 15:29:03 +03:00
Pekka Paalanen
a879fff2ec gl-renderer: skip test when fb-fetch missing
Rather than fail the tests that require fb-fetch GL ES feature and it's
missing, mark them as skipped instead. This helps people who run the
test suite manually.

In CI, a skip is marked as failure anyway.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-09 14:21:54 +03:00
Daniel Stone
ccefe3ef45 tests: Don't leak test idle source on full-skip
If the compositor fails to initialise in such a way that we want to
skip, don't leak the idle source.

This fixes the ASan failure, but still results in a TAP-parsing failure.

Signed-off-by: Daniel Stone <daniels@collabora.com>
2026-04-09 00:20:11 +01:00
Pekka Paalanen
6f709a43b9 frontend: skip main loop on failure
If some initialization code somewhere calls
weston_compositor_exit_with_code() to set an error, don't bother running
at all.

This is useful for alpha-blending test when it tries to force different
blending implementations on the GL-renderer.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-08 21:55:45 +00:00
Pekka Paalanen
b8b8daacf2 gl-renderer, tests: use both blending implementations
This ensures that both blending implementations will be tested. The AUTO
mode, which was the only mode before this patch, would not test the
fixed-function blending a.k.a GL-renderer shadow framebuffer.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-08 21:55:45 +00:00
Pekka Paalanen
528566527e libweston: allow calling weston_compositor_exit() early
Assertions are the usual way of failing tests in the compositor code,
but it means the test program cannot continue further. It would be
better to save an error exit code and run the compositor to the finish,
and then continue with the next test fixture.

I want to force some paths in GL-renderer output initialization for a
test, and fail otherwise. Calling weston_compositor_exit_with_code()
crashes there though, because the frontend has not installed the exit
handler yet.

Skip the exit handler if it's not there. The error exit code is still
saved, and will eventually bubble out of the compositor.

While at it, let's document these.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-08 21:55:45 +00:00
Pekka Paalanen
599adea6df renderer-gl: create shader blender state and use it
This creates the fragment shader state needed for in-shader blending.
In-shader blending is always enabled if supported:
- GL supports the necessary features, and
- the blend-to-output color curve is exactly invertible.

The exact inverse is required, because the compositor will do repeated
decode-encode cycles per destination pixel, one for each non-opaque
source. Roundtrip errors through decode-encode might accumulate
otherwise. For now, identity, enumerated, and parametric curves are
deemed invertible while LUT is rejected without inspection.

Therefore to make use of this feature, outputs need to be configured with
a non-LUT type EOTF/TRC.

In-shader blending is always enabled, because it should be universally
more efficient than the use of a shadow buffer.

This feature was originally drafted for Weston by Sebastian Wick.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-08 21:55:45 +00:00
Pekka Paalanen
f639731c87 renderer-gl: refactor gl_renderer_color_transform_create_steps()
This is tidier.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-08 21:55:45 +00:00
Pekka Paalanen
d3f7a3be8f gl-renderer: refactor into gl_color_curve_init()
This will be needed for framebuffer decoder and encoder for in-shader
blending.

Pure refactoring in gl_renderer_color_transform_create_steps().

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-08 21:55:45 +00:00
Pekka Paalanen
fd8a71b311 renderer-gl: make resize_output() logging more accurate
Discriminate between renderbuffer discard and shadow allocation
failures. While at it, let's pring the shadow pixel format rather than
hardcoding it in a string.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-08 21:55:45 +00:00
Pekka Paalanen
9d2fbd5455 renderer-gl: compress shader descriptions
Make the shader description strings easier to read. Before they looked
like this:

  Compiling shader program for: SHADER_TEXCOORD_INPUT_ATTRIB
  SHADER_VARIANT_SOLID SHADER_COLOR_EFFECT_NONE SHADER_COLOR_CURVE_LINPOW
  SHADER_COLOR_MAPPING_IDENTITY SHADER_COLOR_CURVE_IDENTITY
  +input_is_premult -tint -shader_blending (SHADER_COLOR_CURVE_IDENTITY,
  SHADER_COLOR_CURVE_IDENTITY)

Now they look like this:

  Compiling shader program for: attr tc, solid tex, no effect, CP{
  linpow, I, I }, +premult_in -tint -shader_blending (I, I)

Turn the switches into arrays for easier handling.

This is different from weston_enum_map, because we need two different
strings for each value: a symbol for the shader code, and a description
for the debug logs.

Unknown enum values will abort(), but they should be asserted anyway.
Unfortunately getting a weston_compositor here would be inconvenient for
using weston-assert macros.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-08 21:55:45 +00:00
Pekka Paalanen
aaed41798f renderer-gl: implement blend shader
This prepares the fragment shader for blending in-shader instead of
using the fixed-function blending.

This is not yet used, but it will allow avoiding the 16F shadow
framebuffer in the future.

TEX_UNIT_LAST is actually a count rather than the index of the last
unit. Fix the off-by-one in the check.

The FB fetch/store curves push our potential texture count beyond 8, so
implement a runtime check.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-08 21:55:45 +00:00
Derek Foreman
4b7586ea15 drm: Don't test reused states
We shouldn't need to test state, because the state that worked previously
should work again. However, to be completely safe against unpredictable
edge cases, we've kept a state check.

Remove that check and instead force a state rebuild in the case of an
application failure.

Keep track of how often this happens so we can fall back to checking
instead of consistently failing state application.

fixes #1081

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-08 08:27:02 -05:00
Daniel Stone
fcb195cbd0 drm-backend: Reuse prior state where possible
If we're in a steady state, doing nothing but flipping buffers, we can
try to avoid going through our full routine of brute-forcing an
acceptable plane state, by instead just reusing the old state and
changing only the FB it refers to.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-08 08:27:02 -05:00
Derek Foreman
67172d6f8f surface-state: Flag buffer params as dirty if replacing deleted buffer
This makes replacing an invalid/deleted buffer distinguishable from
a regular buffer update. This will be important when we try to reuse
plane states in a later commit.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-08 08:27:02 -05:00
Derek Foreman
dd74ed6db0 surface-state: Only walk the paint node list once in surface_attach
We have to walk it once for the dirty buffer, but we can accumulate our
changes along the way and walk it only once.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-08 08:27:02 -05:00
gpotter2
501fdea28d backend-rdp: Add --vmconnect mode for RDP (Hyper-V)
When running inside a Hyper-V vm, a special mode needs to be enabled
so that the RDP server is accessible through vmconnect.exe from the
host.

For instance:
```
weston --backend rdp --vmconnect  --address=vsock://1
```

Signed-off-by: gpotter2 <10530980+gpotter2@users.noreply.github.com>
2026-04-07 18:07:45 +03:00
Marius Vlad
d59e58bb79 compositor: Pass the length to opem_stream for one shot scene-graph
Rather than passing a NULL use sizeloc to pass the size. Otherwise
fflush(3) and fclose(3) would die out crashing in libc.

Use size also when printing out to a subscriber.

Fixes: e9665ef36

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2026-04-04 08:11:04 +03:00
Pekka Paalanen
f324d30024 doc: Doxygen group for client
Fix the following error:

Generating doc/sphinx/weston-doc-breathe with a custom command
FAILED: [code=1] doc/sphinx/weston
doc/sphinx/run_doxygen_sphinx.sh
/home/pq/git/weston/libweston/compositor.c:10001: error:
Found non-existing group 'client' for the command '@ingroup',
ignoring command (warning treated as error, aborting now)

Fixes: df622cbb20

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2026-04-03 09:05:42 +03:00
Leandro Ribeiro
61c7ed7ceb tests: add tests to ensure GL dma-buf screenshot correctness
This tests our dma-buf buffer support for GL screenshots. We use two
backends that have outputs with different y origin in order to exercise
the implementation.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
2026-04-02 14:34:19 +00:00
Leandro Ribeiro
f32c6a474f tests: add dma-buf GL screenshot to output capture smoke tests
This ensures that output capture implementation is behaving accordingly,
but not that the screenshot result is correct. In the next commit we
add tests for checking that.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
2026-04-02 14:34:19 +00:00
Leandro Ribeiro
b4c4dfb7e4 clients: screenshot: allow dma-buf screenshots for framebuffer source
In the last commit we've added support for dma-buf screenshots in our
GL-renderer. So let's enable the screenshot client to use it.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
2026-04-02 14:34:19 +00:00
Leandro Ribeiro
c092f500e0 gl-renderer: add support for dma-buf screenshots
This adds support for dma-buf screenshots in our GL-renderer.

For now it only supports GLES >= 3.0, as it depends on
glBlitFramebuffer(). In the future we'll add support for older GLES
versions as well, using a shader to do the blit.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
2026-04-02 14:34:19 +00:00
Leandro Ribeiro
366e045b54 gl-renderer: split create_capture_task() for sync fence and timer
For now this doesn't bring any benefits besides making
gl_renderer_do_read_pixels_async() easier to read. But in the next
commits this will be important.

This allows callers to decide if they want to use a timer when they fail
to get a sync fence for a capture task. For SHM tasks we always fallback
to a timer, but for dma-buf we will not allow the fallback path.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
2026-04-02 14:34:19 +00:00
Leandro Ribeiro
25bb9d32b1 gl-renderer: allow to create gl_capture_task of dma-buf type
For now we support creating gl_capture_task only for SHM buffers. This
is used when the GL renderer pulls an output capture task from the
queue and its buffer type is SHM.

In the next commits we'll add support to allow output capture tasks to
be created with dma-buf buffers, so we need to extend gl_capture_task to
support that as well.

Differently from the SHM case, for dma-buf we don't have to do any copy.
The gl_capture_task is created just to wait for the blit to finish, and
then retire the output capture task.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
2026-04-02 14:34:19 +00:00
Leandro Ribeiro
c0e129946e libweston: move enum weston_buffer_type out of struct
This will be helpful in the next commits, in which we pass the buffer
type as parameter to a few functions. Adding the enum alow us to avoid
passing as unsigned int.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
2026-04-02 14:34:19 +00:00
Derek Foreman
2598073d99 input: Remove a bunch of explicit transform updates
All of these precede calls to weston_coord functions that now
do the transform update implicitly.

Some of them precede it immediately, and others through
functions like weston_pointer_set_focus and weston_pointer_send_motion
which use weston_coord_global_to_surface.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-02 15:29:55 +03:00
Derek Foreman
b88695e3d5 compositor: Update transform in weston_coord global converters
I added these assert()s and have regretted it ever since. I'm sorry.

They've led to a bunch of places that just cargo-cult call
weston_view_update_transform() immediately after dirtying the transform,
as well as a lot of very carefully chosen places that took far too long to
sort out.

weston_view_update_transform() is an immediate return if the transform
isn't dirty, so let's just update them here instead of making everyone
think really hard about when to call weston_view_update_transform().

This should let us remove a few transform updates, and should
make the weston_coord functions a little easier to use.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-02 15:29:55 +03:00
Marius Vlad
01078b890a coverage: Fix meson deprecated function arg
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2026-04-02 15:01:36 +03:00
Marius Vlad
f33bc11e74 westinyplus: Bump to libweston 16
libweston major bump requires to also update libweston dependency.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2026-04-02 15:01:36 +03:00
Marius Vlad
4c29d6ef8e gitlab-ci.yml: Split build-and-test.sh into build and test
We were missing using the build-and-test.sh script for cases
where we don't actually use it. Split it to call it appopriately,
including without setting ASAN's sanitize option for no-test jobs.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2026-04-02 15:01:36 +03:00
Marius Vlad
eae6f5eb68 gitlab-ci: Print and exit if cmd exits with non-zero status
This should allow stopping rather than silently continue.

Fixes: #1096

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2026-04-02 15:01:36 +03:00
Robert Mader
2d15bf0567 gitlab-ci: Bump mesa to 26.0.4
Notably including fixes for
1. in-shader blending in llvmpipe
2. ycbcr support in lavapipe

Signed-off-by: Robert Mader <robert.mader@collabora.com>
2026-04-02 08:01:12 +01:00
Derek Foreman
96e9f4e4ba drm: Remove switch in state-propose
Now that only overlay planes are on the handle list, we can simplify this
code a little bit.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-01 13:59:54 -05:00
Derek Foreman
bf16894809 drm: Remove cursor and scanout handles from the plane handle list
Just put the "normal" planes on that list. This will allow for
some simplification later.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-01 13:59:54 -05:00
Derek Foreman
8b7e72d8fa drm: Allow building a planes-only state with no primary
Some drivers allow a planes-only state as long as something covers
the entire CRTC, and some allow planes-only state even with only
partial coverage.

If we have an fb that we'd like to put on the primary plane, but can't,
we might as well try it on an overlay anyway and see if we can build a
planes-only state without a primary.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-01 13:59:52 -05:00
Derek Foreman
d665061f4d drm: special case the primary plane
While not as weird as the cursor plane, the primary plane's case is
pretty weird. Pull it out of the loop and handle it early.

This is really intended to be a step torwards building a planes-only
output state without a primary plane in it at all.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-01 13:58:51 -05:00
Derek Foreman
fe686c9646 drm: Check the cursor plane outside of the plane loop
The cursor code is weird, so let it be weird before the loop
that tests normal planes.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-01 13:13:51 -05:00
Derek Foreman
a7e35ddac1 drm: refactor plane tests
Pull out a bunch of the plane check code into a function so we can use it
later.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-01 12:32:40 -05:00
Derek Foreman
b7844bc8dd drm: Move fence check before underlay check
There's no need to evaluate these in any particular order, but I'm
going to refactor all the check unrelated to underlays into a single
place shortly.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-01 12:32:40 -05:00
Derek Foreman
1f900aa553 drm: Check if underlays are present before trying to use them
Trying to use an underlay will always fail if the output doesn't support
them, so add a quick check here.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-01 12:32:40 -05:00
Derek Foreman
7833a01b4d drm: Reword comment in find_plane_for_view
The text can be a bit confusing, so try to clarify it a little bit.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-01 12:32:40 -05:00
Derek Foreman
2f460b513f drm: Change the renderer skip logic
There's only one mode where we can skip the renderer, let's base the check
on that instead of checking for an existing scanout fb.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-01 12:32:37 -05:00
Derek Foreman
0dd1d390be state-helpers: use shared xmalloc
Just use the shared xmalloc() instead of malloc+assert

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2026-04-01 12:30:47 -05:00