Currently compton handles window creation event by immediately query all
the information it needs and create a window struct with that
information. However, this is prone to race conditions.
In the future, we want to react to window creation event by creating a
placeholder in the window stack, and only query window information in a
critical section where the X server is grabbed by us.
This commit split struct win into two struct, one as placeholder, the
other for holding actual window information.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Refine the API of fill_rectangle and rename it to fill.
Extras:
Keep GL_BLEND enabled; Fixed some texture/fbo leaks
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
We only ever invert color of or dim the entire image, so just remove the
ability to do region based inversion and dimming. Making implementing
image_op easier.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This is basically just adapting old code to the new interface. A lot
of the functions are still stubs, but the basic stuffs is working.
What remains to be done:
* Implement gl_image_op. (It should do the operation lazily, only update
the flags on the texture. Actual processing will be delayed until composition.)
* Implement gl_copy. Now it just return the same image after incrementing the
refcount. It should actually copy the image data structure so it can have a
separate set of flags.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Also remove xrender's prepare since it overwrite part of the screen
outside the damage region, causing rendering problems.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Pass the visible region of the image to the backend, so the backend
could optimize based on that information.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Now both the old and the new backends are compiled in, the user can
choose which one to use with a command line switch.
Lower the barrier for testing.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit introduced a new, modular backend interface. The interface
is not very good, since I don't think I fully understand all the
requirements writing a backend have. But this is a good first step.
This commit also includes an initial xrender backend written using the
new interface, and some opengl backend related helper functions, which
are taken from the old opengl backend.
However, there is not integration with the core compton yet. compton
will still use the old backend code. This commit is here so we can get
the automated build test.
What is implemented in the new xrender backend:
* Windows with transparency
* Shadow
* Opacity
* Wallpaper (getting the root pixmap)
* Blur
Known problem with the xrender backend:
* It is slower
Things that still need to be figured out:
* What is the better way to add vsync to the new backends
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
