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diff --git a/src/options.c b/src/options.c
deleted file mode 100644
index 6a7bb49..0000000
--- a/src/options.c
+++ /dev/null
@@ -1,1128 +0,0 @@
-// SPDX-License-Identifier: MPL-2.0
-// Copyright (c) Yuxuan Shui <[email protected]>
-
-#include <getopt.h>
-#include <locale.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <xcb/render.h>        // for xcb_render_fixed_t, XXX
-
-#include "backend/backend.h"
-#include "common.h"
-#include "config.h"
-#include "log.h"
-#include "options.h"
-#include "utils.h"
-#include "win.h"
-
-#pragma GCC diagnostic error "-Wunused-parameter"
-
-/**
- * Print usage text.
- */
-static void usage(const char *argv0, int ret) {
-#define WARNING_DISABLED " (DISABLED AT COMPILE TIME)"
-	static const char *usage_text =
-	    "picom (" COMPTON_VERSION ")\n"
-	    "Please report bugs to https://github.com/yshui/picom\n\n"
-	    "usage: %s [options]\n"
-	    "Options:\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.\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 to -f. Deprecated.\n"
-	    "\n"
-	    "--animations\n"
-	    "  Run animations for window geometry changes (movement and scaling).\n"
-	    "\n"
-	    "--animation-for-open-window\n"
-	    "  Which animation to run when opening a window.\n"
-	    "  Must be one of `none`, `fly-in`, `zoom`,\n"
-	    "  `slide-down`, `slide-up`, `slide-left`, `slide-right`\n"
-	    "  (default: none).\n"
-	    "\n"
-	    "--animation-for-transient-window\n"
-	    "  Which animation to run when opening a transient window.\n"
-	    "  Must be one of `none`, `fly-in`, `zoom`,\n"
-	    "  `slide-down`, `slide-up`, `slide-left`, `slide-right`\n"
-	    "  (default: none).\n"
-	    "\n"
-	    "--animation-for-unmap-window\n"
-	    "  Which animation to run when hiding (e.g. minimize) a window.\n"
-	    "  Must be one of `auto`, `none`, `fly-in`, `zoom`,\n"
-	    "  `slide-down`, `slide-up`, `slide-left`, `slide-right`\n"
-	    "  `slide-in`, `slide-out`\n"
-	    "  (default: auto).\n"
-	    "\n"
-	    "--animation-for-workspace-switch-in\n"
-	    "  Which animation to run on switching workspace for windows\n"
-	    "  comming into view.\n"
-	    "  IMPORTANT: window manager must set _NET_CURRENT_DESKTOP\n"
-	    "  before doing the hide/show of windows\n"
-	    "  Must be one of `auto`, `none`, `fly-in`, `zoom`,\n"
-	    "  `slide-down`, `slide-up`, `slide-left`, `slide-right`\n"
-	    "  `slide-in`, `slide-out`\n"
-	    "  (default: auto).\n"
-	    "\n"
-	    "--animation-for-workspace-switch-out\n"
-	    "  Which animation to run on switching workspace for windows\n"
-	    "  going out of view.\n"
-	    "  IMPORTANT: window manager must set _NET_CURRENT_DESKTOP\n"
-	    "  before doing the hide/show of windows\n"
-	    "  Must be one of `auto`, `none`, `fly-in`, `zoom`,\n"
-	    "  `slide-down`, `slide-up`, `slide-left`, `slide-right`\n"
-	    "  `slide-in`, `slide-out`\n"
-	    "  (default: auto).\n"
-	    "\n"
-	    "--animation-stiffness\n"
-	    "  Stiffness (a.k.a. tension) parameter for animation (default: 200.0).\n"
-	    "\n"
-	    "--animation-dampening\n"
-	    "  Dampening (a.k.a. friction) parameter for animation (default: 25.0).\n"
-	    "\n"
-	    "--animation-window-mass\n"
-	    "  Mass parameter for animation (default: 1.0).\n"
-	    "\n"
-	    "--animation-delta\n"
-	    "  The time between steps in animation, in milliseconds. (> 0, defaults to 10).\n"
-	    "\n"
-	    "--animation-force-steps\n"
-	    "  Force animations to go step by step even if cpu usage is high \n"
-	    "  (default: false)\n"
-	    "\n"
-	    "--animation-clamping\n"
-	    "  Whether to clamp animations (default: true)\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"
-	    "--show-all-xerrors\n"
-	    "  Show all X errors (for debugging).\n"
-	    "\n"
-	    "--config path\n"
-	    "  Look for configuration file at the path. Use /dev/null to avoid\n"
-	    "  loading configuration file."
-#ifndef CONFIG_LIBCONFIG
-	    WARNING_DISABLED
-#endif
-	    "\n\n"
-	    "--write-pid-path path\n"
-	    "  Write process ID to a file.\n"
-	    "\n"
-	    "--shadow-color color\n"
-	    "  Color of shadow, as a hex RGB string (defaults to #000000)\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"
-	    "--corner-radius value\n"
-	    "  Sets the radius of rounded window corners. When > 0, the compositor\n"
-	    "  will round the corners of windows. (defaults to 0).\n"
-	    "\n"
-	    "--rounded-corners-exclude condition\n"
-	    "  Exclude conditions for rounded corners.\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, we\n"
-	    "  will try detecting this with X RandR extension.\n"
-	    "\n"
-	    "--vsync\n"
-	    "  Enable VSync\n"
-	    "\n"
-	    "--paint-on-overlay\n"
-	    "  Painting on X Composite overlay window.\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"
-	    "--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"
-	    "--max-brightness\n"
-	    "  Dims windows which average brightness is above this threshold.\n"
-	    "  Requires --no-use-damage.\n"
-	    "  Default: 1.0 or no dimming.\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-method\n"
-	    "  The algorithm used for background bluring. Available choices are:\n"
-	    "  'none' to disable, 'gaussian', 'box' or 'kernel' for custom\n"
-	    "  convolution blur with --blur-kern.\n"
-	    "  Note: 'gaussian' and 'box' require --experimental-backends.\n"
-	    "\n"
-	    "--blur-size\n"
-	    "  The radius of the blur kernel for 'box' and 'gaussian' blur method.\n"
-	    "\n"
-	    "--blur-deviation\n"
-	    "  The standard deviation for the 'gaussian' blur method.\n"
-	    "\n"
-	    "--blur-strength\n"
-	    "  The strength level of the 'dual_kawase' blur method.\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"
-	    "  The element in the center must not be included, it will be forever\n"
-	    "  1.0 or changing based on opacity, depending on whether you have\n"
-	    "  --blur-background-fixed.\n"
-	    "  A 7x7 Gaussian blur kernel looks like:\n"
-	    "    --blur-kern "
-	    "'7,7,0.000003,0.000102,0.000849,0.001723,0.000849,0.000102,0.000003,0."
-	    "000102,0.003494,0.029143,0.059106,0.029143,0.003494,0.000102,0.000849,0."
-	    "029143,0.243117,0.493069,0.243117,0.029143,0.000849,0.001723,0.059106,0."
-	    "493069,0.493069,0.059106,0.001723,0.000849,0.029143,0.243117,0.493069,0."
-	    "243117,0.029143,0.000849,0.000102,0.003494,0.029143,0.059106,0.029143,0."
-	    "003494,0.000102,0.000003,0.000102,0.000849,0.001723,0.000849,0.000102,0."
-	    "000003'\n"
-	    "  Up to 4 blur kernels may be specified, separated with semicolon, for\n"
-	    "  multi-pass blur.\n"
-	    "  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\"'. picom-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"
-	    "  Use --shadow-exclude-reg \'x10+0-0\', for example, if the 10 pixels\n"
-	    "  on the bottom of the screen should not have shadows painted on.\n"
-	    "\n"
-	    "--clip-shadow-above condition\n"
-	    "  Specify a list of conditions of windows to not paint a shadow over,\n"
-	    "  such as a dock window.\n"
-	    "\n"
-	    "--xinerama-shadow-crop\n"
-	    "  Crop shadow of a window fully on a particular Xinerama screen to the\n"
-	    "  screen.\n"
-	    "\n"
-	    "--backend backend\n"
-	    "  Choose backend. Possible choices are xrender, glx, and\n"
-	    "  xr_glx_hybrid."
-#ifndef CONFIG_OPENGL
-	    " (GLX BACKENDS DISABLED AT COMPILE TIME)"
-#endif
-	    "\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-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"
-	    "--no-use-damage\n"
-	    "  Disable the use of damage information. This cause the whole screen to\n"
-	    "  be redrawn everytime, instead of the part of the screen that has\n"
-	    "  actually changed. Potentially degrades the performance, but might fix\n"
-	    "  some artifacts.\n"
-	    "\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.\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."
-#ifndef CONFIG_DBUS
-	    WARNING_DISABLED
-#endif
-	    "\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"
-	    "\n"
-	    "--monitor-repaint\n"
-	    "  Highlight the updated area of the screen. For debugging the xrender\n"
-	    "  backend only.\n"
-	    "\n"
-	    "--debug-mode\n"
-	    "  Render into a separate window, and don't take over the screen. Useful\n"
-	    "  when you want to attach a debugger to picom\n"
-	    "\n"
-	    "--no-ewmh-fullscreen\n"
-	    "  Do not use EWMH to detect fullscreen windows. Reverts to checking\n"
-	    "  if a window is fullscreen based only on its size and coordinates.\n"
-	    "\n"
-	    "--transparent-clipping\n"
-	    "  Make transparent windows clip other windows like non-transparent windows\n"
-	    "  do, instead of blending on top of them\n";
-	FILE *f = (ret ? stderr : stdout);
-	fprintf(f, usage_text, argv0);
-#undef WARNING_DISABLED
-}
-
-static const char *shortopts = "D:I:O:d:r:o:m:l:t:i:e:hscnfFCaSzGb";
-static const struct option longopts[] = {
-    {"help", no_argument, NULL, 'h'},
-    {"config", required_argument, NULL, 256},
-    {"shadow-radius", required_argument, NULL, 'r'},
-    {"shadow-opacity", required_argument, NULL, 'o'},
-    {"shadow-offset-x", required_argument, NULL, 'l'},
-    {"shadow-offset-y", required_argument, NULL, 't'},
-    {"fade-in-step", required_argument, NULL, 'I'},
-    {"fade-out-step", required_argument, NULL, 'O'},
-    {"fade-delta", required_argument, NULL, 'D'},
-    {"menu-opacity", required_argument, NULL, 'm'},
-    {"shadow", no_argument, NULL, 'c'},
-    {"no-dock-shadow", no_argument, NULL, 'C'},
-    {"clear-shadow", no_argument, NULL, 'z'},
-    {"fading", no_argument, NULL, 'f'},
-    {"inactive-opacity", required_argument, NULL, 'i'},
-    {"frame-opacity", required_argument, NULL, 'e'},
-    {"daemon", no_argument, NULL, 'b'},
-    {"no-dnd-shadow", no_argument, NULL, 'G'},
-    {"shadow-red", required_argument, NULL, 257},
-    {"shadow-green", required_argument, NULL, 258},
-    {"shadow-blue", required_argument, NULL, 259},
-    {"inactive-opacity-override", no_argument, NULL, 260},
-    {"inactive-dim", required_argument, NULL, 261},
-    {"mark-wmwin-focused", no_argument, NULL, 262},
-    {"shadow-exclude", required_argument, NULL, 263},
-    {"mark-ovredir-focused", no_argument, NULL, 264},
-    {"no-fading-openclose", no_argument, NULL, 265},
-    {"shadow-ignore-shaped", no_argument, NULL, 266},
-    {"detect-rounded-corners", no_argument, NULL, 267},
-    {"detect-client-opacity", no_argument, NULL, 268},
-    {"refresh-rate", required_argument, NULL, 269},
-    {"vsync", optional_argument, NULL, 270},
-    {"alpha-step", required_argument, NULL, 271},
-    {"dbe", no_argument, NULL, 272},
-    {"paint-on-overlay", no_argument, NULL, 273},
-    {"sw-opti", no_argument, NULL, 274},
-    {"vsync-aggressive", no_argument, NULL, 275},
-    {"use-ewmh-active-win", no_argument, NULL, 276},
-    {"respect-prop-shadow", no_argument, NULL, 277},
-    {"unredir-if-possible", no_argument, NULL, 278},
-    {"focus-exclude", required_argument, NULL, 279},
-    {"inactive-dim-fixed", no_argument, NULL, 280},
-    {"detect-transient", no_argument, NULL, 281},
-    {"detect-client-leader", no_argument, NULL, 282},
-    {"blur-background", no_argument, NULL, 283},
-    {"blur-background-frame", no_argument, NULL, 284},
-    {"blur-background-fixed", no_argument, NULL, 285},
-    {"dbus", no_argument, NULL, 286},
-    {"logpath", required_argument, NULL, 287},
-    {"invert-color-include", required_argument, NULL, 288},
-    {"opengl", no_argument, NULL, 289},
-    {"backend", required_argument, NULL, 290},
-    {"glx-no-stencil", no_argument, NULL, 291},
-    {"benchmark", required_argument, NULL, 293},
-    {"benchmark-wid", required_argument, NULL, 294},
-    {"blur-background-exclude", required_argument, NULL, 296},
-    {"active-opacity", required_argument, NULL, 297},
-    {"glx-no-rebind-pixmap", no_argument, NULL, 298},
-    {"glx-swap-method", required_argument, NULL, 299},
-    {"fade-exclude", required_argument, NULL, 300},
-    {"blur-kern", required_argument, NULL, 301},
-    {"resize-damage", required_argument, NULL, 302},
-    {"glx-use-gpushader4", no_argument, NULL, 303},
-    {"opacity-rule", required_argument, NULL, 304},
-    {"shadow-exclude-reg", required_argument, NULL, 305},
-    {"paint-exclude", required_argument, NULL, 306},
-    {"xinerama-shadow-crop", no_argument, NULL, 307},
-    {"unredir-if-possible-exclude", required_argument, NULL, 308},
-    {"unredir-if-possible-delay", required_argument, NULL, 309},
-    {"write-pid-path", required_argument, NULL, 310},
-    {"vsync-use-glfinish", no_argument, NULL, 311},
-    {"xrender-sync", no_argument, NULL, 312},
-    {"xrender-sync-fence", no_argument, NULL, 313},
-    {"show-all-xerrors", no_argument, NULL, 314},
-    {"no-fading-destroyed-argb", no_argument, NULL, 315},
-    {"force-win-blend", no_argument, NULL, 316},
-    {"glx-fshader-win", required_argument, NULL, 317},
-    {"version", no_argument, NULL, 318},
-    {"no-x-selection", no_argument, NULL, 319},
-    {"no-name-pixmap", no_argument, NULL, 320},
-    {"log-level", required_argument, NULL, 321},
-    {"log-file", required_argument, NULL, 322},
-    {"use-damage", no_argument, NULL, 323},
-    {"no-use-damage", no_argument, NULL, 324},
-    {"no-vsync", no_argument, NULL, 325},
-    {"max-brightness", required_argument, NULL, 326},
-    {"transparent-clipping", no_argument, NULL, 327},
-    {"blur-method", required_argument, NULL, 328},
-    {"blur-size", required_argument, NULL, 329},
-    {"blur-deviation", required_argument, NULL, 330},
-    {"blur-strength", required_argument, NULL, 331},
-    {"shadow-color", required_argument, NULL, 332},
-    {"corner-radius", required_argument, NULL, 333},
-    {"rounded-corners-exclude", required_argument, NULL, 334},
-    {"clip-shadow-above", required_argument, NULL, 335},
-    {"experimental-backends", no_argument, NULL, 733},
-    {"monitor-repaint", no_argument, NULL, 800},
-    {"diagnostics", no_argument, NULL, 801},
-    {"debug-mode", no_argument, NULL, 802},
-    {"no-ewmh-fullscreen", no_argument, NULL, 803},
-    {"animations", no_argument, NULL, 804},
-    {"animation-stiffness", required_argument, NULL, 805},
-    {"animation-dampening", required_argument, NULL, 806},
-    {"animation-window-mass", required_argument, NULL, 807},
-    {"animation-clamping", no_argument, NULL, 808},
-    {"animation-for-open-window", required_argument, NULL, 809},
-    {"animation-for-transient-window", required_argument, NULL, 810},
-    // Must terminate with a NULL entry
-    {NULL, 0, NULL, 0},
-};
-
-/// Get config options that are needed to parse the rest of the options
-/// Return true if we should quit
-bool get_early_config(int argc, char *const *argv, char **config_file, bool *all_xerrors,
-                      bool *fork, int *exit_code) {
-	int o = 0, longopt_idx = -1;
-
-	// Pre-parse the commandline arguments to check for --config and invalid
-	// switches
-	// Must reset optind to 0 here in case we reread the commandline
-	// arguments
-	optind = 1;
-	*config_file = NULL;
-	*exit_code = 0;
-	while (-1 != (o = getopt_long(argc, argv, shortopts, longopts, &longopt_idx))) {
-		if (o == 256) {
-			*config_file = strdup(optarg);
-		} else if (o == 'h') {
-			usage(argv[0], 0);
-			return true;
-
-		} else if (o == 'b') {
-			*fork = true;
-		} else if (o == 'd') {
-			log_error("-d is removed, please use the DISPLAY "
-			          "environment variable");
-			goto err;
-		} else if (o == 314) {
-			*all_xerrors = true;
-		} else if (o == 318) {
-			printf("%s\n", COMPTON_VERSION);
-			return true;
-		} else if (o == 'S') {
-			log_error("-S is no longer available");
-			goto err;
-		} else if (o == 320) {
-			log_error("--no-name-pixmap is no longer available");
-			goto err;
-		} else if (o == '?' || o == ':') {
-			usage(argv[0], 1);
-			goto err;
-		}
-	}
-
-	// Check for abundant positional arguments
-	if (optind < argc) {
-		// log is not initialized here yet
-		fprintf(stderr, "picom doesn't accept positional arguments.\n");
-		goto err;
-	}
-
-	return false;
-err:
-	*exit_code = 1;
-	return true;
-}
-
-/**
- * Process arguments and configuration files.
- */
-bool get_cfg(options_t *opt, int argc, char *const *argv, bool shadow_enable,
-             bool fading_enable, bool conv_kern_hasneg, win_option_mask_t *winopt_mask) {
-
-	int o = 0, longopt_idx = -1;
-
-	char *lc_numeric_old = strdup(setlocale(LC_NUMERIC, NULL));
-
-	// Enforce LC_NUMERIC locale "C" here to make sure dots are recognized
-	// instead of commas in atof().
-	setlocale(LC_NUMERIC, "C");
-
-	// Parse commandline arguments. Range checking will be done later.
-
-	bool failed = false;
-	const char *deprecation_message attr_unused =
-	    "has been removed. If you encounter problems "
-	    "without this feature, please feel free to "
-	    "open a bug report.";
-	optind = 1;
-	while (-1 != (o = getopt_long(argc, argv, shortopts, longopts, &longopt_idx))) {
-		switch (o) {
-#define P_CASEBOOL(idx, option)                                                          \
-	case idx:                                                                        \
-		opt->option = true;                                                      \
-		break
-#define P_CASELONG(idx, option)                                                          \
-	case idx:                                                                        \
-		if (!parse_long(optarg, &opt->option)) {                                 \
-			exit(1);                                                         \
-		}                                                                        \
-		break
-#define P_CASEINT(idx, option)                                                           \
-	case idx:                                                                        \
-		if (!parse_int(optarg, &opt->option)) {                                  \
-			exit(1);                                                         \
-		}                                                                        \
-		break
-
-		// clang-format off
-		// Short options
-		case 318:
-		case 'h':
-			// These options should cause us to exit early,
-			// so assert(false) here
-			assert(false);
-			break;
-		case 'd':
-		case 'b':
-		case 'S':
-		case 314:
-		case 320:
-			// These options are handled by get_early_config()
-			break;
-		P_CASEINT('D', fade_delta);
-		case 'I': opt->fade_in_step = normalize_d(atof(optarg)); break;
-		case 'O': opt->fade_out_step = normalize_d(atof(optarg)); break;
-		case 'c': shadow_enable = true; break;
-		case 'C':
-			log_error("Option `--no-dock-shadow`/`-C` has been removed. Please"
-			          " use the wintype option `shadow` of `dock` instead.");
-			failed = true; break;
-		case 'G':
-			log_error("Option `--no-dnd-shadow`/`-G` has been removed. Please "
-			          "use the wintype option `shadow` of `dnd` instead.");
-			failed = true; break;
-		case 'm':;
-			double tmp;
-			tmp = normalize_d(atof(optarg));
-			winopt_mask[WINTYPE_DROPDOWN_MENU].opacity = true;
-			winopt_mask[WINTYPE_POPUP_MENU].opacity = true;
-			opt->wintype_option[WINTYPE_POPUP_MENU].opacity = tmp;
-			opt->wintype_option[WINTYPE_DROPDOWN_MENU].opacity = tmp;
-			break;
-		case 'f':
-		case 'F':
-			fading_enable = true;
-			break;
-		P_CASEINT('r', shadow_radius);
-		case 'o':
-			opt->shadow_opacity = atof(optarg);
-			break;
-		P_CASEINT('l', shadow_offset_x);
-		P_CASEINT('t', shadow_offset_y);
-		case 'i':
-			opt->inactive_opacity = normalize_d(atof(optarg));
-			break;
-		case 'e': opt->frame_opacity = atof(optarg); break;
-		case 'z':
-			log_warn("clear-shadow is removed, shadows are automatically "
-			         "cleared now. If you want to prevent shadow from been "
-			         "cleared under certain types of windows, you can use "
-			         "the \"full-shadow\" per window type option.");
-			break;
-		case 'n':
-		case 'a':
-		case 's':
-			log_error("-n, -a, and -s have been removed.");
-			failed = true; break;
-		// Long options
-		case 256:
-			// --config
-			break;
-		case 332:;
-			// --shadow-color
-			struct color rgb;
-			rgb = hex_to_rgb(optarg);
-			opt->shadow_red = rgb.red;
-			opt->shadow_green = rgb.green;
-			opt->shadow_blue = rgb.blue;
-			break;
-		case 257:
-			// --shadow-red
-			opt->shadow_red = atof(optarg);
-			break;
-		case 258:
-			// --shadow-green
-			opt->shadow_green = atof(optarg);
-			break;
-		case 259:
-			// --shadow-blue
-			opt->shadow_blue = atof(optarg);
-			break;
-		P_CASEBOOL(260, inactive_opacity_override);
-		case 261:
-			// --inactive-dim
-			opt->inactive_dim = atof(optarg);
-			break;
-		P_CASEBOOL(262, mark_wmwin_focused);
-		case 263:
-			// --shadow-exclude
-			condlst_add(&opt->shadow_blacklist, optarg);
-			break;
-		P_CASEBOOL(264, mark_ovredir_focused);
-		P_CASEBOOL(265, no_fading_openclose);
-		P_CASEBOOL(266, shadow_ignore_shaped);
-		P_CASEBOOL(267, detect_rounded_corners);
-		P_CASEBOOL(268, detect_client_opacity);
-		P_CASEINT(269, refresh_rate);
-		case 270:
-			if (optarg) {
-				opt->vsync = parse_vsync(optarg);
-				log_warn("--vsync doesn't take argument anymore. \"%s\" "
-					 "is interpreted as \"%s\" for compatibility, but "
-					 "this will stop working soon",
-					 optarg, opt->vsync ? "true" : "false");
-			} else {
-				opt->vsync = true;
-			}
-			break;
-		case 271:
-			// --alpha-step
-			log_error("--alpha-step has been removed, we now tries to "
-			          "make use of all alpha values");
-			failed = true; break;
-		case 272:
-			log_error("--dbe has been removed");
-			failed = true; break;
-		case 273:
-			log_error("--paint-on-overlay has been removed, the feature is enabled "
-			          "whenever possible");
-			failed = true; break;
-		P_CASEBOOL(274, sw_opti);
-		case 275:
-			// --vsync-aggressive
-			log_warn("--vsync-aggressive has been deprecated, please remove it"
-			         " from the command line options");
-			break;
-		P_CASEBOOL(276, use_ewmh_active_win);
-		case 277:
-			// --respect-prop-shadow
-			log_warn("--respect-prop-shadow option has been deprecated, its "
-			         "functionality will always be enabled. Please remove it "
-			         "from the command line options");
-			break;
-		P_CASEBOOL(278, unredir_if_possible);
-		case 279:
-			// --focus-exclude
-			condlst_add(&opt->focus_blacklist, optarg);
-			break;
-		P_CASEBOOL(280, inactive_dim_fixed);
-		P_CASEBOOL(281, detect_transient);
-		P_CASEBOOL(282, detect_client_leader);
-		case 283:
-			// --blur_background
-			opt->blur_method = BLUR_METHOD_KERNEL;
-			break;
-		P_CASEBOOL(284, blur_background_frame);
-		P_CASEBOOL(285, blur_background_fixed);
-		P_CASEBOOL(286, dbus);
-		case 287:
-			log_warn("Please use --log-file instead of --logpath");
-			// fallthrough
-		case 322:
-			// --logpath, --log-file
-			free(opt->logpath);
-			opt->logpath = strdup(optarg);
-			break;
-		case 288:
-			// --invert-color-include
-			condlst_add(&opt->invert_color_list, optarg);
-			break;
-		case 289:
-			// --opengl
-			opt->backend = BKEND_GLX;
-			break;
-		case 290:
-			// --backend
-			opt->backend = parse_backend(optarg);
-			if (opt->backend >= NUM_BKEND)
-				exit(1);
-			break;
-		P_CASEBOOL(291, glx_no_stencil);
-		P_CASEINT(293, benchmark);
-		case 294:
-			// --benchmark-wid
-			opt->benchmark_wid = (xcb_window_t)strtol(optarg, NULL, 0);
-			break;
-		case 296:
-			// --blur-background-exclude
-			condlst_add(&opt->blur_background_blacklist, optarg);
-			break;
-		case 297:
-			// --active-opacity
-			opt->active_opacity = normalize_d(atof(optarg));
-			break;
-		P_CASEBOOL(298, glx_no_rebind_pixmap);
-		case 299: {
-			// --glx-swap-method
-			char *endptr;
-			long tmpval = strtol(optarg, &endptr, 10);
-			bool should_remove = true;
-			if (*endptr || !(*optarg)) {
-				// optarg is not a number, or an empty string
-				tmpval = -1;
-			}
-			if (strcmp(optarg, "undefined") != 0 && tmpval != 0) {
-				// If not undefined, we will use damage and buffer-age to
-				// limit the rendering area.
-				opt->use_damage = true;
-				should_remove = false;
-			}
-			log_warn("--glx-swap-method has been deprecated, your setting "
-			         "\"%s\" should be %s.",
-			         optarg,
-			         !should_remove ? "replaced by `--use-damage`" :
-			                         "removed");
-			break;
-		}
-		case 300:
-			// --fade-exclude
-			condlst_add(&opt->fade_blacklist, optarg);
-			break;
-		case 301:
-			// --blur-kern
-			opt->blur_kerns = parse_blur_kern_lst(optarg, &conv_kern_hasneg,
-			                                      &opt->blur_kernel_count);
-			if (!opt->blur_kerns) {
-				exit(1);
-			}
-			break;
-		P_CASEINT(302, resize_damage);
-		case 303:
-			// --glx-use-gpushader4
-			log_warn("--glx-use-gpushader4 is deprecated since v6."
-			         " Please remove it from command line options.");
-			break;
-		case 304:
-			// --opacity-rule
-			if (!parse_rule_opacity(&opt->opacity_rules, optarg))
-				exit(1);
-			break;
-		case 305:
-			// --shadow-exclude-reg
-			free(opt->shadow_exclude_reg_str);
-			opt->shadow_exclude_reg_str = strdup(optarg);
-			log_warn("--shadow-exclude-reg is deprecated. You are likely "
-			         "better off using --clip-shadow-above anyway");
-			break;
-		case 306:
-			// --paint-exclude
-			condlst_add(&opt->paint_blacklist, optarg);
-			break;
-		P_CASEBOOL(307, xinerama_shadow_crop);
-		case 308:
-			// --unredir-if-possible-exclude
-			condlst_add(&opt->unredir_if_possible_blacklist, optarg);
-			break;
-		P_CASELONG(309, unredir_if_possible_delay);
-		case 310:
-			// --write-pid-path
-			free(opt->write_pid_path);
-			opt->write_pid_path = strdup(optarg);
-			if (*opt->write_pid_path != '/') {
-				log_warn("--write-pid-path is not an absolute path");
-			}
-			break;
-		P_CASEBOOL(311, vsync_use_glfinish);
-		case 312:
-			// --xrender-sync
-			log_error("Please use --xrender-sync-fence instead of --xrender-sync");
-			failed = true; break;
-		P_CASEBOOL(313, xrender_sync_fence);
-		P_CASEBOOL(315, no_fading_destroyed_argb);
-		P_CASEBOOL(316, force_win_blend);
-		case 317:
-			opt->glx_fshader_win_str = strdup(optarg);
-			break;
-		case 321: {
-			enum log_level tmp_level = string_to_log_level(optarg);
-			if (tmp_level == LOG_LEVEL_INVALID) {
-				log_warn("Invalid log level, defaults to WARN");
-			} else {
-				log_set_level_tls(tmp_level);
-			}
-			break;
-		}
-		P_CASEBOOL(319, no_x_selection);
-		P_CASEBOOL(323, use_damage);
-		case 324:
-			opt->use_damage = false;
-			break;
-		case 325:
-			opt->vsync = false;
-			break;
-
-		case 326:
-			opt->max_brightness = atof(optarg);
-			break;
-		P_CASEBOOL(327, transparent_clipping);
-		case 328: {
-			// --blur-method
-			enum blur_method method = parse_blur_method(optarg);
-			if (method >= BLUR_METHOD_INVALID) {
-				log_warn("Invalid blur method %s, ignoring.", optarg);
-			} else {
-				opt->blur_method = method;
-			}
-			break;
-		}
-		case 329:
-			// --blur-size
-			opt->blur_radius = atoi(optarg);
-			break;
-		case 330:
-			// --blur-deviation
-			opt->blur_deviation = atof(optarg);
-			break;
-		case 331:
-			// --blur-strength
-			opt->blur_strength = atoi(optarg);
-			break;
-		case 333:
-			// --cornor-radius
-			opt->corner_radius = atoi(optarg);
-			break;
-		case 334:
-			// --rounded-corners-exclude
-			condlst_add(&opt->rounded_corners_blacklist, optarg);
-			break;
-		case 335:
-			// --clip-shadow-above
-			condlst_add(&opt->shadow_clip_list, optarg);
-			break;
-		P_CASEBOOL(733, experimental_backends);
-		P_CASEBOOL(800, monitor_repaint);
-		case 801: opt->print_diagnostics = true; break;
-		P_CASEBOOL(802, debug_mode);
-		P_CASEBOOL(803, no_ewmh_fullscreen);
-		P_CASEBOOL(804, animations);
-		case 805:
-			// --animation-stiffness
-			opt->animation_stiffness = atof(optarg);
-			break;
-		case 806:
-			// --animation-dampening
-			opt->animation_dampening = atof(optarg);
-			break;
-		case 807:
-			// --animation-window-masss
-			opt->animation_window_mass = atof(optarg);
-			break;
-		case 808:
-			// --animation-clamping
-			opt->animation_clamping = true;
-			break;
-		case 809: {
-			// --animation-for-open-window
-			enum open_window_animation animation = parse_open_window_animation(optarg);
-			if (animation >= OPEN_WINDOW_ANIMATION_INVALID) {
-				log_warn("Invalid open-window animation %s, ignoring.", optarg);
-			} else {
-				opt->animation_for_open_window = animation;
-			}
-			break;
-		}
-		case 810: {
-			// --animation-for-transient-window
-			enum open_window_animation animation = parse_open_window_animation(optarg);
-			if (animation >= OPEN_WINDOW_ANIMATION_INVALID) {
-				log_warn("Invalid transient-window animation %s, ignoring.", optarg);
-			} else {
-				opt->animation_for_transient_window = animation;
-			}
-			break;
-		}
-		default: usage(argv[0], 1); break;
-#undef P_CASEBOOL
-		}
-		// clang-format on
-
-		if (failed) {
-			// Parsing this option has failed, break the loop
-			break;
-		}
-	}
-
-	// Restore LC_NUMERIC
-	setlocale(LC_NUMERIC, lc_numeric_old);
-	free(lc_numeric_old);
-
-	if (failed) {
-		return false;
-	}
-
-	if (opt->monitor_repaint && opt->backend != BKEND_XRENDER &&
-	    !opt->experimental_backends) {
-		log_warn("--monitor-repaint has no effect when backend is not xrender");
-	}
-
-	if (opt->experimental_backends && !backend_list[opt->backend]) {
-		log_error("Backend \"%s\" is not available as part of the experimental "
-		          "backends.",
-		          BACKEND_STRS[opt->backend]);
-		return false;
-	}
-
-	if (opt->debug_mode && !opt->experimental_backends) {
-		log_error("Debug mode only works with the experimental backends.");
-		return false;
-	}
-
-	if (opt->transparent_clipping && !opt->experimental_backends) {
-		log_error("Transparent clipping only works with the experimental "
-		          "backends");
-		return false;
-	}
-
-	// Range checking and option assignments
-	opt->fade_delta = max2(opt->fade_delta, 1);
-	opt->shadow_radius = max2(opt->shadow_radius, 0);
-	opt->shadow_red = normalize_d(opt->shadow_red);
-	opt->shadow_green = normalize_d(opt->shadow_green);
-	opt->shadow_blue = normalize_d(opt->shadow_blue);
-	opt->inactive_dim = normalize_d(opt->inactive_dim);
-	opt->frame_opacity = normalize_d(opt->frame_opacity);
-	opt->shadow_opacity = normalize_d(opt->shadow_opacity);
-	opt->refresh_rate = normalize_i_range(opt->refresh_rate, 0, 300);
-
-	opt->max_brightness = normalize_d(opt->max_brightness);
-	if (opt->max_brightness < 1.0) {
-		if (opt->use_damage) {
-			log_warn("--max-brightness requires --no-use-damage. Falling "
-			         "back to 1.0");
-			opt->max_brightness = 1.0;
-		}
-
-		if (!opt->experimental_backends || opt->backend != BKEND_GLX) {
-			log_warn("--max-brightness requires the experimental glx "
-			         "backend. Falling back to 1.0");
-			opt->max_brightness = 1.0;
-		}
-	}
-
-	// --blur-background-frame implies --blur-background
-	if (opt->blur_background_frame && opt->blur_method == BLUR_METHOD_NONE) {
-		opt->blur_method = BLUR_METHOD_KERNEL;
-	}
-
-	// Apply default wintype options that are dependent on global options
-	set_default_winopts(opt, winopt_mask, shadow_enable, fading_enable,
-	                    opt->blur_method != BLUR_METHOD_NONE);
-
-	// Other variables determined by options
-
-	// Determine whether we track window grouping
-	if (opt->detect_transient || opt->detect_client_leader) {
-		opt->track_leader = true;
-	}
-
-	// Fill default blur kernel
-	if (opt->blur_method == BLUR_METHOD_KERNEL &&
-	    (!opt->blur_kerns || !opt->blur_kerns[0])) {
-		opt->blur_kerns = parse_blur_kern_lst("3x3box", &conv_kern_hasneg,
-		                                      &opt->blur_kernel_count);
-		CHECK(opt->blur_kerns);
-		CHECK(opt->blur_kernel_count);
-	}
-
-	// Sanitize parameters for dual-filter kawase blur
-	if (opt->blur_method == BLUR_METHOD_DUAL_KAWASE) {
-		if (opt->blur_strength <= 0 && opt->blur_radius > 500) {
-			log_warn("Blur radius >500 not supported by dual_kawase method, "
-			         "capping to 500.");
-			opt->blur_radius = 500;
-		}
-		if (opt->blur_strength > 20) {
-			log_warn("Blur strength >20 not supported by dual_kawase method, "
-			         "capping to 20.");
-			opt->blur_strength = 20;
-		}
-		if (!opt->experimental_backends) {
-			log_warn("Dual-kawase blur is not implemented by the legacy "
-			         "backends, you must use the `experimental-backends` "
-			         "option.");
-		}
-	}
-
-	if (opt->resize_damage < 0) {
-		log_warn("Negative --resize-damage will not work correctly.");
-	}
-
-	if (opt->backend == BKEND_XRENDER && conv_kern_hasneg) {
-		log_warn("A convolution kernel with negative values may not work "
-		         "properly under X Render backend.");
-	}
-
-	if (opt->corner_radius > 0 && opt->experimental_backends) {
-		log_warn("Rounded corner is only supported on legacy backends, it "
-		         "will be disabled");
-		opt->corner_radius = 0;
-	}
-
-	return true;
-}
-
-// vim: set noet sw=8 ts=8 :