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authorRichard Grenville <pyxlcy@gmail.com>2014-11-24 22:03:07 +0800
committerRichard Grenville <pyxlcy@gmail.com>2014-11-24 22:03:07 +0800
commit07b75620487436a0e693d3a13354dba346a463f2 (patch)
tree629707f27a3f9af827c56ec3a63ace8775e66da2
parent325fb4c2983cb3211138078bff9cbec749be21c8 (diff)
downloadtdebase-07b75620487436a0e693d3a13354dba346a463f2.tar.gz
tdebase-07b75620487436a0e693d3a13354dba346a463f2.zip
Misc #215: Reformat usage text & update docs
- Reformat usage text by adding a blank line between descriptions of two switches. (#215) - Update documentation for a bit. Correct some wrong statements and clarify some others.
-rw-r--r--compton.c95
1 files changed, 85 insertions, 10 deletions
diff --git a/compton.c b/compton.c
index aec56cacd..25c35b6ee 100644
--- a/compton.c
+++ b/compton.c
@@ -4470,93 +4470,133 @@ usage(int ret) {
"\n"
"-d display\n"
" Which display should be managed.\n"
+ "\n"
"-r radius\n"
" The blur radius for shadows. (default 12)\n"
+ "\n"
"-o opacity\n"
" The translucency for shadows. (default .75)\n"
+ "\n"
"-l left-offset\n"
" The left offset for shadows. (default -15)\n"
+ "\n"
"-t top-offset\n"
" The top offset for shadows. (default -15)\n"
+ "\n"
"-I fade-in-step\n"
" Opacity change between steps while fading in. (default 0.028)\n"
+ "\n"
"-O fade-out-step\n"
" Opacity change between steps while fading out. (default 0.03)\n"
+ "\n"
"-D fade-delta-time\n"
" The time between steps in a fade in milliseconds. (default 10)\n"
+ "\n"
"-m opacity\n"
" The opacity for menus. (default 1.0)\n"
+ "\n"
"-c\n"
" Enabled client-side shadows on windows.\n"
+ "\n"
"-C\n"
" Avoid drawing shadows on dock/panel windows.\n"
+ "\n"
"-z\n"
- " Zero the part of the shadow's mask behind the window (experimental).\n"
+ " Zero the part of the shadow's mask behind the window.\n"
+ "\n"
"-f\n"
" Fade windows in/out when opening/closing and when opacity\n"
" changes, unless --no-fading-openclose is used.\n"
+ "\n"
"-F\n"
- " Equals -f. Deprecated.\n"
+ " Equals to -f. Deprecated.\n"
+ "\n"
"-i opacity\n"
" Opacity of inactive windows. (0.1 - 1.0)\n"
+ "\n"
"-e opacity\n"
" Opacity of window titlebars and borders. (0.1 - 1.0)\n"
+ "\n"
"-G\n"
" Don't draw shadows on DND windows\n"
+ "\n"
"-b\n"
" Daemonize process.\n"
+ "\n"
"-S\n"
" Enable synchronous operation (for debugging).\n"
+ "\n"
"--show-all-xerrors\n"
" Show all X errors (for debugging).\n"
+ "\n"
"--config path\n"
- " Look for configuration file at the path.\n"
+ " Look for configuration file at the path. Use /dev/null to avoid\n"
+ " loading configuration file.\n"
+ "\n"
"--write-pid-path path\n"
" Write process ID to a file.\n"
+ "\n"
"--shadow-red value\n"
" Red color value of shadow (0.0 - 1.0, defaults to 0).\n"
+ "\n"
"--shadow-green value\n"
" Green color value of shadow (0.0 - 1.0, defaults to 0).\n"
+ "\n"
"--shadow-blue value\n"
" Blue color value of shadow (0.0 - 1.0, defaults to 0).\n"
+ "\n"
"--inactive-opacity-override\n"
" Inactive opacity set by -i overrides value of _NET_WM_OPACITY.\n"
+ "\n"
"--inactive-dim value\n"
" Dim inactive windows. (0.0 - 1.0, defaults to 0)\n"
+ "\n"
"--active-opacity opacity\n"
" Default opacity for active windows. (0.0 - 1.0)\n"
+ "\n"
"--mark-wmwin-focused\n"
" Try to detect WM windows and mark them as active.\n"
+ "\n"
"--shadow-exclude condition\n"
" Exclude conditions for shadows.\n"
+ "\n"
"--fade-exclude condition\n"
" Exclude conditions for fading.\n"
+ "\n"
"--mark-ovredir-focused\n"
" Mark windows that have no WM frame as active.\n"
+ "\n"
"--no-fading-openclose\n"
" Do not fade on window open/close.\n"
+ "\n"
"--no-fading-destroyed-argb\n"
" Do not fade destroyed ARGB windows with WM frame. Workaround of bugs\n"
" in Openbox, Fluxbox, etc.\n"
+ "\n"
"--shadow-ignore-shaped\n"
" Do not paint shadows on shaped windows. (Deprecated, use\n"
" --shadow-exclude \'bounding_shaped\' or\n"
" --shadow-exclude \'bounding_shaped && !rounded_corners\' instead.)\n"
+ "\n"
"--detect-rounded-corners\n"
" Try to detect windows with rounded corners and don't consider\n"
" them shaped windows. Affects --shadow-ignore-shaped,\n"
" --unredir-if-possible, and possibly others. You need to turn this\n"
" on manually if you want to match against rounded_corners in\n"
" conditions.\n"
+ "\n"
"--detect-client-opacity\n"
" Detect _NET_WM_OPACITY on client windows, useful for window\n"
" managers not passing _NET_WM_OPACITY of client windows to frame\n"
" windows.\n"
+ "\n"
"--refresh-rate val\n"
" Specify refresh rate of the screen. If not specified or 0, compton\n"
" will try detecting this with X RandR extension.\n"
+ "\n"
"--vsync vsync-method\n"
- " Set VSync method. There are up to 4 VSync methods currently available.\n"
+ " Set VSync method. There are (up to) 5 VSync methods currently\n"
+ " available:\n"
" none = No VSync\n"
#undef WARNING
#ifndef CONFIG_VSYNC_DRM
@@ -4565,7 +4605,7 @@ usage(int ret) {
#define WARNING
#endif
" drm = VSync with DRM_IOCTL_WAIT_VBLANK. May only work on some\n"
- " drivers." WARNING "\n"
+ " (DRI-based) drivers." WARNING "\n"
#undef WARNING
#ifndef CONFIG_VSYNC_OPENGL
#define WARNING WARNING_DISABLED
@@ -4575,67 +4615,82 @@ usage(int ret) {
" opengl = Try to VSync with SGI_video_sync OpenGL extension. Only\n"
" work on some drivers." WARNING"\n"
" opengl-oml = Try to VSync with OML_sync_control OpenGL extension.\n"
- " Only work on some drivers. Experimental." WARNING"\n"
+ " Only work on some drivers." WARNING"\n"
" opengl-swc = Try to VSync with SGI_swap_control OpenGL extension.\n"
- " Only work on some drivers. Works only with GLX backend.\n"
- " Does not actually control paint timing, only buffer swap is\n"
- " affected, so it doesn't have the effect of --sw-opti unlike\n"
- " other methods." WARNING "\n"
+ " Only work on some drivers. Works only with GLX backend." WARNING "\n"
" opengl-mswc = Try to VSync with MESA_swap_control OpenGL\n"
" extension. Basically the same as opengl-swc above, except the\n"
" extension we use." WARNING "\n"
+ "\n"
"--vsync-aggressive\n"
" Attempt to send painting request before VBlank and do XFlush()\n"
" during VBlank. This switch may be lifted out at any moment.\n"
+ "\n"
"--alpha-step val\n"
" X Render backend: Step for pregenerating alpha pictures. \n"
" 0.01 - 1.0. Defaults to 0.03.\n"
+ "\n"
"--dbe\n"
" Enable DBE painting mode, intended to use with VSync to\n"
" (hopefully) eliminate tearing.\n"
+ "\n"
"--paint-on-overlay\n"
" Painting on X Composite overlay window.\n"
+ "\n"
"--sw-opti\n"
" Limit compton to repaint at most once every 1 / refresh_rate\n"
" second to boost performance.\n"
+ "\n"
"--use-ewmh-active-win\n"
" Use _NET_WM_ACTIVE_WINDOW on the root window to determine which\n"
" window is focused instead of using FocusIn/Out events.\n"
+ "\n"
"--respect-prop-shadow\n"
" Respect _COMPTON_SHADOW. This a prototype-level feature, which\n"
" you must not rely on.\n"
+ "\n"
"--unredir-if-possible\n"
" Unredirect all windows if a full-screen opaque window is\n"
" detected, to maximize performance for full-screen windows.\n"
+ "\n"
"--unredir-if-possible-delay ms\n"
" Delay before unredirecting the window, in milliseconds.\n"
" Defaults to 0.\n"
+ "\n"
"--unredir-if-possible-exclude condition\n"
" Conditions of windows that shouldn't be considered full-screen\n"
" for unredirecting screen.\n"
+ "\n"
"--focus-exclude condition\n"
" Specify a list of conditions of windows that should always be\n"
" considered focused.\n"
+ "\n"
"--inactive-dim-fixed\n"
" Use fixed inactive dim value.\n"
+ "\n"
"--detect-transient\n"
" Use WM_TRANSIENT_FOR to group windows, and consider windows in\n"
" the same group focused at the same time.\n"
+ "\n"
"--detect-client-leader\n"
" Use WM_CLIENT_LEADER to group windows, and consider windows in\n"
" the same group focused at the same time. WM_TRANSIENT_FOR has\n"
" higher priority if --detect-transient is enabled, too.\n"
+ "\n"
"--blur-background\n"
" Blur background of semi-transparent / ARGB windows. Bad in\n"
" performance. The switch name may change without prior\n"
" notifications.\n"
+ "\n"
"--blur-background-frame\n"
" Blur background of windows when the window frame is not opaque.\n"
" Implies --blur-background. Bad in performance. The switch name\n"
" may change.\n"
+ "\n"
"--blur-background-fixed\n"
" Use fixed blur strength instead of adjusting according to window\n"
" opacity.\n"
+ "\n"
"--blur-kern matrix\n"
" Specify the blur convolution kernel, with the following format:\n"
" WIDTH,HEIGHT,ELE1,ELE2,ELE3,ELE4,ELE5...\n"
@@ -4649,22 +4704,27 @@ usage(int ret) {
" May also be one the predefined kernels: 3x3box (default), 5x5box,\n"
" 7x7box, 3x3gaussian, 5x5gaussian, 7x7gaussian, 9x9gaussian,\n"
" 11x11gaussian.\n"
+ "\n"
"--blur-background-exclude condition\n"
" Exclude conditions for background blur.\n"
+ "\n"
"--resize-damage integer\n"
" Resize damaged region by a specific number of pixels. A positive\n"
" value enlarges it while a negative one shrinks it. Useful for\n"
" fixing the line corruption issues of blur. May or may not\n"
" work with --glx-no-stencil. Shrinking doesn't function correctly.\n"
+ "\n"
"--invert-color-include condition\n"
" Specify a list of conditions of windows that should be painted with\n"
" inverted color. Resource-hogging, and is not well tested.\n"
+ "\n"
"--opacity-rule opacity:condition\n"
" Specify a list of opacity rules, in the format \"PERCENT:PATTERN\",\n"
" like \'50:name *= \"Firefox\"'. compton-trans is recommended over\n"
" this. Note we do not distinguish 100% and unset, and we don't make\n"
" any guarantee about possible conflicts with other programs that set\n"
" _NET_WM_WINDOW_OPACITY on frame or client windows.\n"
+ "\n"
"--shadow-exclude-reg geometry\n"
" Specify a X geometry that describes the region in which shadow\n"
" should not be painted in, such as a dock window region.\n"
@@ -4676,32 +4736,39 @@ usage(int ret) {
#else
#define WARNING
#endif
+ "\n"
"--xinerama-shadow-crop\n"
" Crop shadow of a window fully on a particular Xinerama screen to the\n"
" screen." WARNING "\n"
+ "\n"
"--backend backend\n"
" Choose backend. Possible choices are xrender, glx, and\n"
" xr_glx_hybrid" WARNING ".\n"
+ "\n"
"--glx-no-stencil\n"
" GLX backend: Avoid using stencil buffer. Might cause issues\n"
" when rendering transparent content. My tests show a 15% performance\n"
" boost.\n"
+ "\n"
"--glx-copy-from-front\n"
" GLX backend: Copy unmodified regions from front buffer instead of\n"
" redrawing them all. My tests with nvidia-drivers show a 5% decrease\n"
" in performance when the whole screen is modified, but a 30% increase\n"
" when only 1/4 is. My tests on nouveau show terrible slowdown. Could\n"
" work with --glx-swap-method but not --glx-use-copysubbuffermesa.\n"
+ "\n"
"--glx-use-copysubbuffermesa\n"
" GLX backend: Use MESA_copy_sub_buffer to do partial screen update.\n"
" My tests on nouveau shows a 200% performance boost when only 1/4 of\n"
" the screen is updated. May break VSync and is not available on some\n"
" drivers. Overrides --glx-copy-from-front.\n"
+ "\n"
"--glx-no-rebind-pixmap\n"
" GLX backend: Avoid rebinding pixmap on window damage. Probably\n"
" could improve performance on rapid window content changes, but is\n"
" known to break things on some drivers (LLVMpipe, xf86-video-intel,\n"
" etc.).\n"
+ "\n"
"--glx-swap-method undefined/copy/exchange/3/4/5/6/buffer-age\n"
" GLX backend: GLX buffer swap method we assume. Could be\n"
" undefined (0), copy (1), exchange (2), 3-6, or buffer-age (-1).\n"
@@ -4710,9 +4777,11 @@ usage(int ret) {
" but safer (6 is still faster than 0). -1 means auto-detect using\n"
" GLX_EXT_buffer_age, supported by some drivers. Useless with\n"
" --glx-use-copysubbuffermesa.\n"
+ "\n"
"--glx-use-gpushader4\n"
" GLX backend: Use GL_EXT_gpu_shader4 for some optimization on blur\n"
" GLSL code. My tests on GTX 670 show no noticeable effect.\n"
+ "\n"
"--xrender-sync\n"
" Attempt to synchronize client applications' draw calls with XSync(),\n"
" used on GLX backend to ensure up-to-date window content is painted.\n"
@@ -4722,6 +4791,7 @@ usage(int ret) {
#else
#define WARNING
#endif
+ "\n"
"--xrender-sync-fence\n"
" Additionally use X Sync fence to sync clients' draw calls. Needed\n"
" on nvidia-drivers with GLX backend for some users." WARNING "\n"
@@ -4731,17 +4801,22 @@ usage(int ret) {
#else
#define WARNING
#endif
+ "\n"
"--glx-fshader-win shader\n"
" GLX backend: Use specified GLSL fragment shader for rendering window\n"
" contents.\n"
+ "\n"
"--force-win-blend\n"
" Force all windows to be painted with blending. Useful if you have a\n"
" --glx-fshader-win that could turn opaque pixels transparent.\n"
+ "\n"
"--dbus\n"
" Enable remote control via D-Bus. See the D-BUS API section in the\n"
" man page for more details." WARNING "\n"
+ "\n"
"--benchmark cycles\n"
" Benchmark mode. Repeatedly paint until reaching the specified cycles.\n"
+ "\n"
"--benchmark-wid window-id\n"
" Specify window ID to repaint in benchmark mode. If omitted or is 0,\n"
" the whole screen is repainted.\n"