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Refactor the XSync fence code

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Use a temporary fence everytime. Convert the Xlib XSync functions to use
xcb_sync_*.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui
2018-12-30 07:06:47 +00:00
parent bc0382d962
commit 80847dd3fa
11 changed files with 85 additions and 86 deletions
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7
man/compton.1.asciidoc
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@ -235,7 +235,7 @@ May also be one of the predefined kernels: `3x3box` (default), `5x5box`, `7x7box
+
--
* `xrender` backend performs all rendering operations with X Render extension. It is what `xcompmgr` uses, and is generally a safe fallback when you encounter rendering artifacts or instability.
* `glx` (OpenGL) backend performs all rendering operations with OpenGL. It is more friendly to some VSync methods, and has significantly superior performance on color inversion (`--invert-color-include`) or blur (`--blur-background`). It requires proper OpenGL 2.0 support from your driver and hardware. You may wish to look at the GLX performance optimization options below. `--xrender-sync` and `--xrender-sync-fence` might be needed on some systems to avoid delay in changes of screen contents.
* `glx` (OpenGL) backend performs all rendering operations with OpenGL. It is more friendly to some VSync methods, and has significantly superior performance on color inversion (`--invert-color-include`) or blur (`--blur-background`). It requires proper OpenGL 2.0 support from your driver and hardware. You may wish to look at the GLX performance optimization options below. `--xrender-sync-fence` might be needed on some systems to avoid delay in changes of screen contents.
* `xr_glx_hybrid` backend renders the updated screen contents with X Render and presents it on the screen with GLX. It attempts to address the rendering issues some users encountered with GLX backend and enables the better VSync of GLX backends. `--vsync-use-glfinish` might fix some rendering issues with this backend.
--
@ -251,11 +251,8 @@ May also be one of the predefined kernels: `3x3box` (default), `5x5box`, `7x7box
*--glx-use-gpushader4*::
GLX backend: Use 'GL_EXT_gpu_shader4' for some optimization on blur GLSL code. My tests on GTX 670 show no noticeable effect.
*--xrender-sync*::
Attempt to synchronize client applications' draw calls with `XSync()`, used on GLX backend to ensure up-to-date window content is painted.
*--xrender-sync-fence*::
Additionally use X Sync fence to sync clients' draw calls. Needed on nvidia-drivers with GLX backend for some users. May be disabled at compile time with `NO_XSYNC=1`.
Use X Sync fence to sync clients' draw calls, to make sure all draw calls are finished before compton starts drawing. Needed on nvidia-drivers with GLX backend for some users.
*--glx-fshader-win* 'SHADER'::
GLX backend: Use specified GLSL fragment shader for rendering window contents. See `compton-default-fshader-win.glsl` and `compton-fake-transparency-fshader-win.glsl` in the source tree for examples.