In gl_image_apply_alpha, the call to _gl_fill uses 0 as the target
framebuffer, so the alpha is not applied to the target texture.
Fix that by using the correct framebuffer.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Previously some fiedls of gl_texture allocated in gl_image_decouple are
not initialized.
This commit replaces cmalloc with ccalloc to make sure the allocated
gl_texture is zero initialized.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
GLX context is released when it's no longer current in any threads, so
we have to release the context before destroy it.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Prevent a useless error message from glGetUniformLocationChecked, as
"opacity" is not used by the dummy shader, we will fail to get its
location.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
If the user is using custom shaders, picom will naturally fail to get
some uniform locations if the given uniform is not used in the shader.
So we really shouldn't report error for it.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Currently if the shadow image fails to bind, the entire window is marked
as having image errors. So nothing of that window will render, even if
the window image itself is fine.
The commit cause shadow to be disabled when shadow image fails, instead
of marking the window.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
For big windows, their shadow images might exceed the maximum request
length limit of Xorg. libxcb will shutdown the connection to X server if
we try to send that image. So we have to break the image apart and send
it piecemeal.
In the future we probably should migrate to MIT-SHM.
Fixes#255#274
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Transparent windows usually blends on top of other windows, this commit
adds an option to make transparent windows clip other windows like
non-transparent windows do.
Closes#265
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Instead of allocating new textures everytime gl_average_texture_color is
called, we keep two textures per gl_image and reuse those.
Doing this significantly improves CPU usage on AMDGPU driver for some
reason. But in general, less texture allocation is always better.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
leftovers:
1) config file path. Has to implement compatibility functionalities before
we can change it.
2) links in man pages. Has to migrate the repo first.
3) _COMPTON_SHADOW, it has become a defacto standard, so we have to keep
supporting it.
4) dbus names, undecided whether we should/could change it.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
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.
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>
When a window has 0 opacity, it's rendering is skipped completely. Thus
its background isn't blurred.
This commit fixes that.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Dummy backends are backends that doesn't render anything on to the
screen or the target window. But they are still be useful for debug
purposes, and can be useful for other things too.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Only render blur with transparency when window is fading in/out.
Otherwise, a window with a set opacity will always have a completely
blurred background.
Fixes#198
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
There were still some artifacts left when multiple semi-transparent
windows are stacked on top of each other.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Instead of rendering into the back buffer, render into a intermediate
texture.
This is a preparation for partial screen updating, which is necessary to
eliminate artifacts visible when using blur and use-damage together.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
