A quick search on GitHub showing the _COMPTON_SHADOW is actively being
used (most noteably, by polybar). It is not a difficult thing to support,
and it doesn't have that much runtime overhead. So remove the option
that guards this feature, make it enabled by default.
(Side note, I saw lots of people putting this option in their config
files, but this is actually a command line only option.)
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Firstly, this breaks the assumption that when we redirect the screen,
all window is either mapped or unmapped, causing a assertion failure.
Secondly, if transition window into fading when the screen is not
redirected, the fading will not progress until the screen is redirected,
probably not the desired result.
Fixes#246
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Since user reports indicate it has real performance benefits.
Also add a command line flag for turning use-damage off.
Fixes#242
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Because first frame no window has their pixmap bound, which doesn't
happen in frames after the first. If a window is unmapped in that frame,
the compositor will try to render a window with no pixmap bound if
fading is enabled.
Now we keep track if we are in the first frame, and if that's the case
we skip fading in unmap/destroy.
Fixes#239, bug number 2
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This simplifies the logic a bit since we know a shadow is always bound
(if needed) when the screen is redirected.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
If a window is unmapped during the draw_callback re-run when the screen
is just redirected, that window won't get a chance to acquire a pixmap.
If fading is enabled, the compositor will try to render that window and
crash.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Previously all image stale flags are ignored when processing an unmapped
window. If a window gains a shadow during its fading out transition, the
shadow flag will be set, but shadow won't actually be generated, causing
a NULL pointer dereference during render.
Fixes#239
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Otherwise shadow won't get generated in next critical section, causing
NULL pointer dereference or assertion failure in next render.
Partially fixes#239
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
win_get_name _updates_ the name of the window by querying the X server,
thus potentially changes the behaviour of the compositor when logging is
turned on (e.g. we could fail to detect window name changes, because the
name was blindly updated in a logging call without handling the name change).
We shouldn't do that.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
recheck_focus rejects focus of unmapped windows, so we have to make sure
pending maps of windows are processed before we call recheck_focus.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Fixes the following memory leak reported by valgrind:
1,056 bytes in 24 blocks are definitely lost in loss record 83 of 111
at 0x483577F: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
by 0x49DB0DD: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49D8FB4: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49DA63E: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49DA751: xcb_wait_for_reply (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x11FD5B: fill_win (win.c:1165)
by 0x117CE6: handle_new_windows (compton.c:1266)
by 0x118065: _draw_callback (compton.c:1333)
by 0x1184D0: draw_callback (compton.c:1426)
by 0x49BF292: ev_invoke_pending (in /usr/lib/x86_64-linux-gnu/libev.so.4.0.0)
by 0x49C3344: ev_run (in /usr/lib/x86_64-linux-gnu/libev.so.4.0.0)
by 0x11AD65: session_run (compton.c:2226)
This one out of multiple code paths forgot to free the structure. Yeah,
manual memory management is hard. :-)
Fixes the following memory leak reported by valgrind:
992 bytes in 31 blocks are definitely lost in loss record 81 of 111
at 0x483577F: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
by 0x49DB0DD: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49D8FB4: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49DA63E: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49DA751: xcb_wait_for_reply (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x118094: _draw_callback (compton.c:1335)
by 0x1184D0: draw_callback (compton.c:1426)
by 0x49BF292: ev_invoke_pending (in /usr/lib/x86_64-linux-gnu/libev.so.4.0.0)
by 0x49C3344: ev_run (in /usr/lib/x86_64-linux-gnu/libev.so.4.0.0)
by 0x11AD65: session_run (compton.c:2226)
by 0x11B005: main (compton.c:2308)
To prevent accidentaly reusing the freed structure, wrap it in a lexical
scope.
Fixes the following memory leaks reported by valgrind:
96 bytes in 1 blocks are definitely lost in loss record 54 of 111
at 0x483577F: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
by 0x49DB0DD: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49D8FB4: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49DA63E: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49DA751: xcb_wait_for_reply (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x14B266: detect_driver (driver.c:34)
by 0x119949: session_init (compton.c:1879)
by 0x11AEF0: main (compton.c:2285)
96 bytes in 1 blocks are definitely lost in loss record 55 of 111
at 0x483577F: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
by 0x49DB0DD: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49D8FB4: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49DA63E: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49DA751: xcb_wait_for_reply (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x14B266: detect_driver (driver.c:34)
by 0x11795E: redir_start (compton.c:1202)
by 0x115C76: paint_preprocess (compton.c:629)
by 0x1182BD: _draw_callback (compton.c:1380)
by 0x1184D0: draw_callback (compton.c:1426)
by 0x49BF292: ev_invoke_pending (in /usr/lib/x86_64-linux-gnu/libev.so.4.0.0)
by 0x49C3344: ev_run (in /usr/lib/x86_64-linux-gnu/libev.so.4.0.0)
Fixes the following memory leaks reported by valgrind:
32 bytes in 1 blocks are definitely lost in loss record 15 of 111
at 0x483577F: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
by 0x49DB0DD: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49D8FB4: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49DA63E: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49DA751: xcb_wait_for_reply (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x14B16F: detect_driver (driver.c:20)
by 0x119949: session_init (compton.c:1879)
by 0x11AEF0: main (compton.c:2285)
32 bytes in 1 blocks are definitely lost in loss record 16 of 111
at 0x483577F: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
by 0x49DB0DD: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49D8FB4: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49DA63E: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x49DA751: xcb_wait_for_reply (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0)
by 0x14B16F: detect_driver (driver.c:20)
by 0x11795E: redir_start (compton.c:1202)
by 0x115C76: paint_preprocess (compton.c:629)
by 0x1182BD: _draw_callback (compton.c:1380)
by 0x1184D0: draw_callback (compton.c:1426)
by 0x49BF292: ev_invoke_pending (in /usr/lib/x86_64-linux-gnu/libev.so.4.0.0)
by 0x49C3344: ev_run (in /usr/lib/x86_64-linux-gnu/libev.so.4.0.0)
Also, free(randr_version) in the error path as well.
Convert several places where the window image is bound/unbound directly
to use image flags. Make sure window image updates only happen in one
place.
Remove win_bind_image function since its no longer used after this.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
And a window update flag for mapping the window.
Also make sure related functions consider the case where the given window
has pending updates.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Which includes the pending update flags for the window.
Using an internal struct makes sure the window update flags are opaque outside
of win.c
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
rename map_win, unmap_win, destroy_win to map_win_start,
unmap_win_start, destroy_win_start respectively. To clarify their
intended functions. Also rename the corresponding finish_* functions to
*_finish so they are consistent.
Also some very minor code clean ups.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Instead of doing both unmapping and destroying in the same function,
since that complicates the logic.
Also since now destroy_win handles both the managed and unmanaged cases,
remove destroy_unmanage_win function.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Split it into PIXMAP_STALE and SHADOW_STALE, this allows us to update
pixmaps and shadow images separately.
Also added PIXMAP_NONE and SHADOW_NONE, as redundancy to detect logic
errors.
Convenient constants and functions are provided for updating pixmap and
shadow together.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Yuxuan Shui