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Author SHA1 Message Date
Hans de Goede
7fcdd60ac5 renderer-native: Fix compiler warning
Fix the following compiler warning:
../src/backends/native/meta-renderer-native.c: In function ‘meta_renderer_native_create_view’:
/usr/include/glib-2.0/glib/gmacros.h:523:17: warning: ‘formats’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  523 |     { if (_ptr) (cleanup) ((ParentName *) _ptr); }                                                              \
      |                 ^
../src/backends/native/meta-renderer-native.c:773:22: note: ‘formats’ was declared here
  773 |   g_autoptr (GArray) formats;
      |                      ^~~~~~~

https://gitlab.gnome.org/GNOME/mutter/merge_requests/632
2019-06-20 10:32:52 +02:00
Hans de Goede
a8984a81c2 xwayland: Generate a Xauth file and pass this to Xwayland when starting it
Before this commit, sudo x11-app, e.g. sudo gvim /etc/some-file, fails
when running a Wayland session. Where as doing this under a "GNOME on Xorg"
session works fine. For a user switching from the Xorg session to the
Wayland session, this is regression, which we want to avoid.

This commit fixes this by creating and passing an xauth file to Xwayland when
mutter starts it. Just like gdm or startx pass a xauth file to Xorg when they
start Xorg.

Fixes #643

https://gitlab.gnome.org/GNOME/mutter/issues/643
2019-06-20 10:16:21 +02:00
Niels De Graef
769a02b630 cogl: Drop _COGL_RETURN_VAL_IF_FAIL macro
This was introduced when the Cogl maintainers tried to move away from
GLib. Since we always require it, we can just use
`g_return_val_if_fail()` immediately.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/629
2019-06-19 21:46:22 +02:00
Niels De Graef
576330edce cogl: Drop _COGL_RETURN_IF_FAIL macro
This was introduced when the Cogl maintainers tried to move away from
GLib. Since we always require it, we can just use `g_return_if_fail()`
immediately.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/629
2019-06-19 21:36:19 +02:00
Niels De Graef
a2a114e79c cogl: Remove unused _COGL_TYPEDEF_ASSERT() macro
We can safely remove it since it's used nowhere in the code base. If you
would still like to use someting similar, there's `G_STATIC_ASSERT`.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/629
2019-06-19 21:03:31 +02:00
Niels De Graef
79e22853ea cogl: Remove cogl_util_ffs macro
Since commit 46942c24, we don't need the wrapper macro as we always
require its implementation to be available on the build system.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/629
2019-06-19 21:03:28 +02:00
Niels De Graef
be72b22964 cogl: Remove cogl_util_memmem() macro
`cogl_util_memmem` was used as a wrapper in case `memmem` wasn't
defined, but since commit 46942c24 these are required. In case of
`memmem`, we didn't explicitly require this in the meson build files, so
add that as well.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/629
2019-06-19 21:03:23 +02:00
Georges Basile Stavracas Neto
2464f00902
screen-cast-monitor-stream-src: Watch monitors using MetaStageWatch
This uses the API introduced by the previous commit. By watching specific
monitors directly, and not whole stage views, we avoid showing artifacts
on multi-monitor setups.

Fixes https://gitlab.gnome.org/GNOME/mutter/issues/424

https://gitlab.gnome.org/GNOME/mutter/merge_requests/623
2019-06-19 13:12:18 -03:00
Georges Basile Stavracas Neto
9b5d9f3cb3
stage: Introduce MetaStageWatch and family
MetaStageWatch, watch modes and the watch function are part
of the new stage view watching API. It's design does not
rely on signals on purpose; the number of signals that would
be emitted would be too high, and would impact performance.

MetaStageWatch is an opaque structure outside of MetaStage.

This will be used by the screencast code to monitor a single
view, which has a one-to-one relatioship to logical monitors.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/623
2019-06-19 13:12:17 -03:00
Georges Basile Stavracas Neto
088117a619
clutter/tests: Connect to ClutterStage:paint-view
ClutterStage:after-paint now does not guarantee a valid
implicit framebuffer pushed to the stack. Instead, use
the new 'paint-view' signal, that is emitted at a point
in the drawing routine where a framebuffer is pushed.

In addition to that, stop using the implicit framebuffer
API and port the actor-shader-effect test to read from
the view's framebuffer directly.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/623
2019-06-19 13:12:17 -03:00
Georges Basile Stavracas Neto
4a19628829
clutter/stage: Add ClutterStage:paint-view
Now that ClutterStageView is embraced as part of the public
set of Clutter classes, is it possible to give consumers
of this API more information and control over the drawing
routines of ClutterStage.

Introduce ClutterStage:paint-view, a signal that is emitted
for painting a specific view. It's defined as a RUN_LAST
signal to give anyone connecting to it the ability to run
before the view is actually painted, or after (using the
G_CONNECT_AFTER flag, or g_signal_connect_after).

This signal has a corresponding class handler, which allows
Mutter to have much finer control over the painting routines.
In fact, this will allow us to implement a "paint phase watcher"
mechanism in the following patches.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/623
2019-06-19 13:12:17 -03:00
Georges Basile Stavracas Neto
0cd54c5735
clutter/stage: Emit after-paint after painting
ClutterStage:after-paint is supposed to be emitted after all
painting is done, but before the frame is finished. However,
as it is right now, it is being emitted after each view is
painted -- on multi-monitor setups, after-frame is being
emitted multiple times.

Send after-paint only once, after all views are painted and
before finishing the frame.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/623
2019-06-19 12:35:29 -03:00
Georges Basile Stavracas Neto
cc2c670a5e
clutter/stage: Own clutter_stage_get_view_at()
This function is exported as a Mutter-specific function,
but now that ClutterStageView is part of the public API,
ClutterStage can own this function.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/623
2019-06-19 12:35:29 -03:00
Georges Basile Stavracas Neto
769a01f4e9
clutter: Make ClutterStageView a public class
As a compositor toolkit, it makes sense to allow consumers
of Clutter interact with the stage views themselves. As such,
ClutterStageView should be a public class.

As such, it is now included in clutter.h and should not be
included directly.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/623
2019-06-19 12:35:29 -03:00
Georges Basile Stavracas Neto
9c1afbbb67
clutter/stage-view: Annotate some functions
The GIR parser cannot figure out the ownership model of
ClutterStageView.get_framebuffer() and .get_offscreen()
without them, and throws us a couple of warnings.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/623
2019-06-19 12:35:28 -03:00
Georges Basile Stavracas Neto
376725e30e
clutter/stage-view: Move unexported functions to private header
Next commits will expose ClutterStageView as a public class, so
move the functions private to Clutter to a private header.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/623
2019-06-19 12:35:27 -03:00
Jonas Ådahl
b836e661cf wayland: Don't export non-public API not used by tests
https://gitlab.gnome.org/GNOME/mutter/merge_requests/628
2019-06-19 15:19:05 +00:00
Hans de Goede
446e82e86d test-utils: Fix compiler warning
This fixes the following compiler warning:

In file included from /usr/include/glib-2.0/glib.h:114,
                 from ../src/tests/test-utils.h:23,
                 from ../src/tests/test-utils.c:22:
../src/tests/test-utils.c: In function ‘test_init’:
/usr/include/glib-2.0/glib/glib-autocleanups.h:28:3: warning: ‘basename’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   28 |   g_free (*pp);
      |   ^~~~~~~~~~~~
../src/tests/test-utils.c:73:24: note: ‘basename’ was declared here
   73 |       g_autofree char *basename;
      |                        ^~~~~~~~

https://gitlab.gnome.org/GNOME/mutter/merge_requests/627
2019-06-19 13:00:17 +02:00
Daniel Mustieles
f2020913fd Updated Spanish translation 2019-06-19 10:10:45 +02:00
Jonas Ådahl
d9fb11b043 renderer/native: Fix EGLSurface destruction order
Make sure to destroy the EGL surface after releasing held buffers,
otherwise we'll get the following valgrind warnings:

==24016== Invalid read of size 8
==24016==    at 0x1739943F: release_buffer (platform_drm.c:73)
==24016==    by 0x49AC355: meta_drm_buffer_gbm_finalize (meta-drm-buffer-gbm.c:213)
==24016==    by 0x4B75B61: g_object_unref (gobject.c:3346)
==24016==    by 0x49B4B41: free_current_bo (meta-renderer-native.c:991)
==24016==    by 0x49B816F: meta_renderer_native_release_onscreen (meta-renderer-native.c:2971)
==24016==    by 0x5209441: _cogl_onscreen_free (cogl-onscreen.c:167)
==24016==    by 0x5208D81: _cogl_object_onscreen_indirect_free (cogl-onscreen.c:51)
==24016==    by 0x51C8066: _cogl_object_default_unref (cogl-object.c:103)
==24016==    by 0x5207989: _cogl_framebuffer_unref (cogl-framebuffer.c:1814)
==24016==    by 0x51C80B1: cogl_object_unref (cogl-object.c:115)
==24016==    by 0x53673C7: clutter_stage_view_dispose (clutter-stage-view.c:304)
==24016==    by 0x4B75AF2: g_object_unref (gobject.c:3309)
==24016==  Address 0x18e742a8 is 536 bytes inside a block of size 784 free'd
==24016==    at 0x4839A0C: free (vg_replace_malloc.c:540)
==24016==    by 0x17399764: dri2_drm_destroy_surface (platform_drm.c:231)
==24016==    by 0x1738550A: eglDestroySurface (eglapi.c:1145)
==24016==    by 0x5440286: eglDestroySurface (in /home/jonas/Dev/gnome/install/lib/libEGL.so.1.1.0)
==24016==    by 0x49613A5: meta_egl_destroy_surface (meta-egl.c:432)
==24016==    by 0x49B80F9: meta_renderer_native_release_onscreen (meta-renderer-native.c:2954)
==24016==    by 0x5209441: _cogl_onscreen_free (cogl-onscreen.c:167)
==24016==    by 0x5208D81: _cogl_object_onscreen_indirect_free (cogl-onscreen.c:51)
==24016==    by 0x51C8066: _cogl_object_default_unref (cogl-object.c:103)
==24016==    by 0x5207989: _cogl_framebuffer_unref (cogl-framebuffer.c:1814)
==24016==    by 0x51C80B1: cogl_object_unref (cogl-object.c:115)
==24016==    by 0x53673C7: clutter_stage_view_dispose (clutter-stage-view.c:304)
==24016==  Block was alloc'd at
==24016==    at 0x483AB1A: calloc (vg_replace_malloc.c:762)
==24016==    by 0x173997AE: dri2_drm_create_window_surface (platform_drm.c:145)
==24016==    by 0x17388906: _eglCreateWindowSurfaceCommon (eglapi.c:929)
==24016==    by 0x5440197: eglCreateWindowSurface (in /home/jonas/Dev/gnome/install/lib/libEGL.so.1.1.0)
==24016==    by 0x49612FF: meta_egl_create_window_surface (meta-egl.c:396)
==24016==    by 0x49B752E: meta_renderer_native_create_surface_gbm (meta-renderer-native.c:2538)
==24016==    by 0x49B7E6C: meta_onscreen_native_allocate (meta-renderer-native.c:2870)
==24016==    by 0x49B8BCF: meta_renderer_native_create_view (meta-renderer-native.c:3387)
==24016==    by 0x48D274B: meta_renderer_create_view (meta-renderer.c:78)
==24016==    by 0x48D27DE: meta_renderer_rebuild_views (meta-renderer.c:111)
==24016==    by 0x49BB4FB: meta_stage_native_rebuild_views (meta-stage-native.c:142)
==24016==    by 0x49A733C: meta_backend_native_update_screen_size (meta-backend-native.c:517)

https://gitlab.gnome.org/GNOME/mutter/merge_requests/622
2019-06-18 11:12:03 +02:00
Jonas Ådahl
56ddaaa380 renderer/native: Make sure we're not destroying an active EGLSurface
When making a new surface/context pair current, mesa may want to flush
the old context. Make sure we don't try to flush any freed memory by
unmaking a surface/context pair current before freeing it.

Not doing this results in the following valgrind warnings:

==15986== Invalid read of size 8
==15986==    at 0x69A6D80: dri_flush_front_buffer (gbm_dri.c:92)
==15986==    by 0x1750D458: intel_flush_front (brw_context.c:251)
==15986==    by 0x1750D4BB: intel_glFlush (brw_context.c:296)
==15986==    by 0x1739D8DD: dri2_make_current (egl_dri2.c:1461)
==15986==    by 0x17393A3A: eglMakeCurrent (eglapi.c:869)
==15986==    by 0x54381FB: InternalMakeCurrentVendor (in /home/jonas/Dev/gnome/install/lib/libEGL.so.1.1.0)
==15986==    by 0x5438515: eglMakeCurrent (in /home/jonas/Dev/gnome/install/lib/libEGL.so.1.1.0)
==15986==    by 0x522A782: _cogl_winsys_egl_make_current (cogl-winsys-egl.c:303)
==15986==    by 0x49B64C8: meta_renderer_native_create_view (meta-renderer-native.c:3076)
==15986==    by 0x48D26E7: meta_renderer_create_view (meta-renderer.c:78)
==15986==    by 0x48D277A: meta_renderer_rebuild_views (meta-renderer.c:111)
==15986==    by 0x49BF46E: meta_stage_native_rebuild_views (meta-stage-native.c:142)
==15986==  Address 0x1b076600 is 0 bytes inside a block of size 48 free'd
==15986==    at 0x4839A0C: free (vg_replace_malloc.c:540)
==15986==    by 0x49B59F3: meta_renderer_native_release_onscreen (meta-renderer-native.c:2651)
==15986==    by 0x5211441: _cogl_onscreen_free (cogl-onscreen.c:167)
==15986==    by 0x5210D81: _cogl_object_onscreen_indirect_free (cogl-onscreen.c:51)
==15986==    by 0x51D0066: _cogl_object_default_unref (cogl-object.c:103)
==15986==    by 0x520F989: _cogl_framebuffer_unref (cogl-framebuffer.c:1814)
==15986==    by 0x51D00B1: cogl_object_unref (cogl-object.c:115)
==15986==    by 0x536F3C7: clutter_stage_view_dispose (clutter-stage-view.c:304)
==15986==    by 0x4B7DAF2: g_object_unref (gobject.c:3309)
==15986==    by 0x4A9596C: g_list_foreach (glist.c:1013)
==15986==    by 0x4A9599A: g_list_free_full (glist.c:223)
==15986==    by 0x48D2737: meta_renderer_rebuild_views (meta-renderer.c:100)
==15986==  Block was alloc'd at
==15986==    at 0x483AB1A: calloc (vg_replace_malloc.c:762)
==15986==    by 0x69A76B2: gbm_dri_surface_create (gbm_dri.c:1252)
==15986==    by 0x69A6BFE: gbm_surface_create (gbm.c:600)
==15986==    by 0x49B4E29: meta_renderer_native_create_surface_gbm (meta-renderer-native.c:2221)
==15986==    by 0x49B57DB: meta_onscreen_native_allocate (meta-renderer-native.c:2569)
==15986==    by 0x49B6423: meta_renderer_native_create_view (meta-renderer-native.c:3062)
==15986==    by 0x48D26E7: meta_renderer_create_view (meta-renderer.c:78)
==15986==    by 0x48D277A: meta_renderer_rebuild_views (meta-renderer.c:111)
==15986==    by 0x49BF46E: meta_stage_native_rebuild_views (meta-stage-native.c:142)
==15986==    by 0x49A75B5: meta_backend_native_update_screen_size (meta-backend-native.c:520)
==15986==    by 0x48B01BB: meta_backend_sync_screen_size (meta-backend.c:224)
==15986==    by 0x48B09B7: meta_backend_real_post_init (meta-backend.c:501)

https://gitlab.gnome.org/GNOME/mutter/merge_requests/622
2019-06-18 11:12:03 +02:00
Jonas Ådahl
1efb32d300 renderer/native: Use g_set_error() instead of _cogl_set_error()
It's even a GError, so lets use the proper API.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/622
2019-06-18 11:12:03 +02:00
Nathan Follens
6dba56223a Update Dutch translation 2019-06-18 08:22:17 +00:00
Niels De Graef
2ff6beea35 cogl: Remove cogl_wayland_texture_2d_* functions
These are implemented in the Meta namespace these days, where we have
better abstractions for wayland-related types. They also weren't used
anymore, since we removed the unused ClutterWaylandSurface type in the
previous commit.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/624
2019-06-18 09:54:04 +02:00
Niels De Graef
689c7f4107 clutter: Remove unused ClutterWaylandSurface
This allows for some further cleanups, since it is the sole consumer of
some functions in Cogl.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/624
2019-06-18 09:54:00 +02:00
Jonas Ådahl
59bf1f4838 window/wayland: Don't always use constrained size when unfullscreening
When we're unfullscreening, we might be returning to a window state that
has its size either managed by constraints (tiled, maximized), or not
(floating). Lets just pass the configure size 0x0 when we're not using
constrained sizes (i.e. the window going from being fullscreen to not
maximized) and let the application decide how to size itself.

Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/638

https://gitlab.gnome.org/GNOME/mutter/merge_requests/621
2019-06-13 16:40:57 +00:00
Jonas Ådahl
db0f85ba5d window: Add tile mode getter
Lets avoid peeking in the MetaWindow struct itself and add a getter for
the relevant state.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/621
2019-06-13 16:40:57 +00:00
Jonas Ådahl
425611eadf window/wayland: Use constrained size when unmaximizing while fullscreen
Otherwise we'll ask the client to use the size 0x0 with the fullscreen
state set.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/621
2019-06-13 16:40:57 +00:00
Emil Velikov
9213574870 renderer/native: add missing eglTerminate in EGLDevice error path
Currently the EGLDevice code gets the display and calls eglInitialize.
As a follow-up it checks the required EGL extensions - technically it
could check the EGL device extensions earlier.

In either case, eglTerminate is missing. Thus the connection to the
display was still bound.

This was highlighted with Mesa commit d6edccee8da ("egl: add
EGL_platform_device support") + amdgpu.

In that case, since the eglTerminate is missing, we end up reusing the
underlying amdgpu_device due to some caching in libdrm_amdgpu. The
latter in itself being a good solution since it allows buffer sharing
across primary and render node of the same device.

Note: we should really get this in branches all the way back to 3.30.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/619

Fixes: 934184e23 ("MetaRendererNative: Add EGLDevice based rendering support")
Cc: Jonas Ådahl <jadahl@gmail.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
2019-06-13 17:12:40 +01:00
Jonas Ådahl
3073acc3b0 clutter/stage: Remove offscreen property
It was deprecated, unused and unimplemented, so lets remove it.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/616
2019-06-13 14:28:46 +00:00
Jonas Ådahl
a61d525111 clutter: Remove stage fullscreening
Another unneeded feature related to clutter originally being an
application library that we have no use for when we're only ever a
compositor.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/616
2019-06-13 14:28:46 +00:00
Jonas Ådahl
4064d9a7a7 clutter: Remove ability to be user resizable
It's a functionality from the application centric clutter that we don't
need for compositors.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/616
2019-06-13 14:28:46 +00:00
Florian Müllner
8a06cfdd81 enum-types: Use @basename@ in header comment
@filename@ may contain arch-specific bits that introduce unnecessary
multi-lib issues.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/617
2019-06-12 18:01:36 +02:00
Daniel Mustieles
d3e789e677 Updated Spanish translation 2019-06-11 12:56:38 +02:00
Pekka Paalanen
c24d8e856b clutter/x11: Fix build without libwacom
When libwacom is configured disabled, this error appears:

../clutter/clutter/x11/clutter-input-device-xi2.c: In function ‘clutter_input_device_xi2_finalize’:
../clutter/clutter/x11/clutter-input-device-xi2.c:122:7: error: ‘device_xi2’ undeclared (first use in this function)
   if (device_xi2->inhibit_pointer_query_timer)

Fix it with the "obvious" solution.

This code was added in c1303bd642.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/611
2019-06-10 14:25:05 +03:00
Daniel van Vugt
9db9793f33 clutter: Clarify clutter_stage_get_actor_at_pos docs
When a user moves their cursor the perceived behaviour is that it will
pick what is under the cursor. However this isn't how picking works.
Picking does a virtual redraw of the screen, so in some cases what gets
picked isn't the same as what the user could see on the previous frame.
It more represents what will be drawn on the next frame than what is on
screen at present.

It may be unsafe to change these semantics, and they are useful anyway.
Just document it better.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/214
2019-06-07 19:58:49 +00:00
Daniel van Vugt
c237bc5f45 clutter-effect: Rename get_paint_volume
`_clutter_effect_get_paint_volume` was misleading. Its only purpose is
to modify an existing paint volume. So change `get` to `modify`.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/115
2019-06-07 19:51:53 +00:00
Jonas Ådahl
178b975d6a cursor-renderer: Align OpenGL cursor rect to physical pixel grid
When stage views are scaled with fractional scales, the cursor rectangle
won't be aligned with the physical pixel grid, making it potentially
blurry when positioned in between physical pixels. This can be avoided
by aligning the drawn rectangle to the physical pixel grid of the stage
view the cursor is located on.

Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/413

https://gitlab.gnome.org/GNOME/mutter/merge_requests/610
2019-06-07 19:11:34 +00:00
Jonas Ådahl
4abca411f3 clutter/stage: Expose stage view getter helper as API
Non-introspected and private to mutter, for getting a stage view from a
coordinate.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/610
2019-06-07 19:11:34 +00:00
Jonas Ådahl
e48c7c009a clutter/stage: Make view fetch helper take floats
https://gitlab.gnome.org/GNOME/mutter/merge_requests/610
2019-06-07 19:11:34 +00:00
Jonas Ådahl
36b361617d wayland/cursor-surface: Update sprite when attaching NULL
Attaching a NULL buffer should hide the cursor sprite. In these cases,
we we'll have neither surface nor buffer damage, so also update when we
just attached a NULL buffer.

Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/630
2019-06-07 16:06:47 +00:00
Jonas Ådahl
5eac1d696d wayland/surface: Clear texture when attaching NULL
When 252e64a0ea moved the texture
ownership to MetaWaylandSurface, it failed to handle the case when a
NULL-buffer is attached, leaving the texture reference in place. This
caused issues when the surface should have been hidden (e.g. attaching a
NULL buffer to a cursor surface for hiding the cursor sprite).

Related: https://gitlab.gnome.org/GNOME/mutter/issues/630
2019-06-07 16:06:47 +00:00
Georges Basile Stavracas Neto
9b53583945
cogl/trace: Fix typo
https://gitlab.gnome.org/GNOME/mutter/merge_requests/609
2019-06-07 12:58:10 -03:00
Georges Basile Stavracas Neto
1dbf25afa1
clutter/stage-cogl: Protect against extremely high refresh rates
After 4faeb12731, the maximum time allowed for an update to happen
is calculated as:

  max_render_time_allowed = refresh_interval - 1000 * sync_delay;

However, extremely small refresh intervals -- that come as consequence
to extremely high refresh rates -- may fall into an odd numerical range
when refresh_interval < 1000 * sync_delay. That would give us a negative
time.

To be extra cautious about it, add another sanity check for this case.

Change suggested by Jasper St. Pierre.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/363
2019-06-07 12:20:49 -03:00
Daniel van Vugt
e415cc538a
clutter/master-clock: Remove fallback throttles
The presentation timing logic (via `master_clock_get_swap_wait_time`) now
works unconditionally. By "works" we mean that a result of zero from
`master_clock_get_swap_wait_time` actually means zero now. Previously
zero could mean either a successful result of zero milliseconds or that
the backend couldn't get an answer. And a non-zero result is the same as
before.

This works even if the screen is "idle" and even if the backend doesn't
provide presentation timestamps. So now our two fallback throttling
mechanisms of relying on `CLUTTER_FEATURE_SWAP_THROTTLE` and decimating
to `clutter_get_default_frame_rate` can be deleted.

Closes: https://gitlab.gnome.org/GNOME/mutter/issues/406 and
        https://bugzilla.gnome.org/show_bug.cgi?id=781835

https://gitlab.gnome.org/GNOME/mutter/merge_requests/363
2019-06-07 12:08:49 -03:00
Daniel van Vugt
67a3715ded
clutter/stage-cogl: Reduce while loop iterations
If `last_presentation_time` is zero (unsupported) or just very old
(system was idle) then we would like to avoid that triggering a large
number of loop interations. This will get us closer to the right answer
without iterating.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/363
2019-06-07 12:08:49 -03:00
Daniel van Vugt
35aa278194
clutter/stage-cogl: Stop schedule_update repeatedly returning now
That could happen if the backend did not provide presentation timestamps,
or if the screen was not changing other than the hardware cursor:

  if (stage_cogl->last_presentation_time == 0||
      stage_cogl->last_presentation_time < now - 150000)
    {
      stage_cogl->update_time = now;
      return;
    }

By setting `update_time` to `now`, master_clock_get_swap_wait_time()
returns 0:

  gint64 now = g_source_get_time (master_clock->source);
  if (min_update_time < now)
    {
      return 0;
    }
  else
    {
      gint64 delay_us = min_update_time - now;
      return (delay_us + 999) / 1000;
    }

However, zero is a value unsupported by the default master clock
due to:

  if (swap_delay != 0)
    return swap_delay;

All cases are now handled by extrapolating when the next presentation
time would be and calculating an appropriate update time to meet that.

We also need to add a check for `update_time == last_update_time`, which
is a situation that just became possible since we support old (or zero)
values of `last_presentation_time`. This avoids getting more than one
stage update per frame interval when input events arrive without
triggering a stage redraw (e.g. moving the hardware cursor).

https://gitlab.gnome.org/GNOME/mutter/merge_requests/363
2019-06-07 12:03:35 -03:00
Daniel van Vugt
a76762a05e clutter/stage-cogl: Use default frame rate instead of hardcoded 60Hz
Instead of 0Hz falling back to 60Hz, use `CLUTTER_DEFAULT_FPS` which is
also 60Hz by default.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/363
2019-06-07 14:42:01 +08:00
Daniel van Vugt
ccf27e5f83 clutter/stage-cogl: Schedule immediate update on zero refresh interval
Instead of crazy refresh rates >1MHz falling back to 60Hz, just honour
them by rendering unthrottled (same as `sync_delay < 0`). Although I
wouldn't actually expect that path to ever be needed in reality, it just
ensures an infinite `while` loop never happens.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/363
2019-06-07 14:42:01 +08:00
Daniel van Vugt
912a9ecfba clutter/stage-cogl: Use G_USEC_PER_SEC instead of hardcoded number
One million is the number of microseconds in one second, which is also
defined by `G_USEC_PER_SEC`.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/363
2019-06-07 14:42:01 +08:00