Commit Graph

829 Commits

Author SHA1 Message Date
Uli Schlachter 7c174cc3b1 Replace XserverRegion with xcb_xfixes_region_t
Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-10-02 19:50:27 +02:00
Yuxuan Shui cb4bab1cf6 Print deprecation warning for removed OpenGL options
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 21:07:29 +01:00
Yuxuan Shui 03f33ed45c Move a couple X related functions to x.c
Also replace remaining Pixmap with xcb_pixmap_t

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 20:57:42 +01:00
Yuxuan Shui ddab20176b Fix building with ENABLE_XRESCHECK=1 2018-09-30 20:43:34 +01:00
Yuxuan Shui 18022181ee Make sure to clear the rectangles 2018-09-30 20:41:30 +01:00
Yuxuan Shui 6a41bebfa5 Just clear shadow anyways
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 20:12:06 +01:00
Yuxuan Shui 97cd3421b0 Remove last bits of Xfixes
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 15:54:12 +01:00
Yuxuan Shui e0bc6f5f7c Add helper macros for calling xcb function and wait for reply
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 15:54:12 +01:00
Yuxuan Shui ff27ca4072 Move xerror_common to x.c
Also rename it to x_print_error

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 15:54:12 +01:00
Yuxuan Shui 915839c3d3 Convert XFixesCreateRegionFromWindow to use Shape directly
Fetch the rectangles directly use the Shape extension.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 15:54:12 +01:00
Yuxuan Shui 82e63593ae region.h: helper functions for converting rect types
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 15:54:12 +01:00
Yuxuan Shui a7d50ffdb2 Remove unused function rect_crop
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 15:54:12 +01:00
Yuxuan Shui 28a2cc62fa Convert XfixesRegion to pixman region
Re-did the painting logic, and document it.

It is unclear to me what is the previous painting logic. But the current
one is basically this:

1. Go through all windows top to bottom, and put visible windows (not
   unmapped, opacity > 0, etc) into a linked list, from bottom to top
2. Accumulate a region of ignore on each window, which is basically the
   region of screen that is obscured by all the windows above current
   one.
3. Paint all the visible windows from bottom to top. Subtract the region
   of ignore from the painting region. If we need to paint shadow, we
   subtract the body of the window from the shadow painting region too,
   because we don't want shadow behind the window.
4. region of ignore is invalidated when window stack change, an
   window on top moved or changed shape, when window changed between
   opaque and transparent, etc.

Notes:

It is unclear whether all the different shapes of a window (extents,
noframe, border, bounding shape, etc) are calculated correctly or not.

It is unclear if window shape related events are handled correctly or
not. Need more testing.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 14:18:33 +01:00
Yuxuan Shui 56f7dd36f6 x: Add region related helper functions
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 14:18:33 +01:00
Yuxuan Shui 3f4c05720d utils.h: Some utility functions and macros
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 14:18:33 +01:00
Yuxuan Shui ab12467c3f Change fade callback function parameter
Change `win *` to `win **`, because a window could be freed by the
callback, so we can set `*w` to NULL to communicate that.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 14:18:33 +01:00
Yuxuan Shui 417744df14 Move opengl related function prototype to opengl.h
And aggregate some of the OPENGL ifdefs

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 14:18:01 +01:00
Yuxuan Shui c01ad5bf04 Move OpenGL functions around
Also remove some debug function calls (there are better tools for opengl
debugging now). Also remove copysubbuffermesa

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 13:49:45 +01:00
Yuxuan Shui 90b6aa16ad Remove ARGB as a window mode
Instead use win_has_alpha to check for alpha channel, window mode is
reserved for determine if the window is possibly transparent.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
2018-09-30 13:49:45 +01:00
Uli Schlachter 8848676540 Add a function that allocates a pixmap and checks success
Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-30 09:31:22 +02:00
yshui 6ec951763e
Merge branch 'next' into more-xcb-conv 2018-09-30 04:53:34 +01:00
Uli Schlachter aedea014a9 Replace XFixes initialisation with xcb
XFixesQueryExtension() does an XFixes QueryVersion request internally,
so one was added here.

Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-29 17:02:44 +01:00
Uli Schlachter 529306e65f Convert usage of XCreatePixmap to xcb
Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-29 12:00:18 +02:00
Uli Schlachter ea9942b87e Replace use of XFreePixmap with XCB
Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-29 11:53:30 +02:00
Uli Schlachter 9dff55540f Convert Xinerama usage to xcb
Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-29 11:48:58 +02:00
Uli Schlachter 83a4853419 Convert use of SHAPE extension to XCB
Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-29 11:48:58 +02:00
Uli Schlachter aa8cb217c8 Fix xcb error ignoring
The existing mechanism with set_ignore_next() is (IMHO) ugly and also
does not work with XCB requests. This commit adds a new function
set_ignore_cookie() and fixes callers that were converted to XCB to use
this new function instead.

Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-29 11:48:58 +02:00
Uli Schlachter 00ae9718ee Handle asyncronous X11 errors
Errors for requests sent via Xlib that expect a reply are handled via
XSetErrorHandler(), which sets up a callback function that Xlib calls.
Errors for requests that do not expect a reply or for errors caused via
unchecked XCB requests show up as events of type 0 in the event handling
function.

Before this commit, errors were ignored here. This commit changes the
code so that the errors are printed instead.

Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-29 11:48:58 +02:00
Uli Schlachter 3ed73b1f8e Replace last definitions from Xcomposite.h with xcb
Note that this adds an include for Xfixes.h, because that header is
still needed and was previously included through Xcomposite.h.

Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-29 11:48:57 +02:00
Uli Schlachter 2f49f6f03d Switch XComposite initialisation to XCB
Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-29 11:48:57 +02:00
Uli Schlachter 8064eaaa37 Replace more usage of XComposite with xcb
Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-29 10:38:25 +02:00
Uli Schlachter 79089b0652 Port XCompositeUnredirect{Subw,W}indows to xcb
Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-29 10:37:53 +02:00
Uli Schlachter 11204e7a44 Port usage of XCompositeNameWindowPixmap to xcb
Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-29 10:37:29 +02:00
Uli Schlachter 7719dc7325 RENDER: Fix check for convolution filter
The X11 server's answer is not \0-terminated, so xcb_str_name() also
does not provide a \0-terminated pointer.

Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-28 10:45:16 +02:00
Uli Schlachter 539d62ca93 Port from xrender to xcb-render
Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-27 18:14:44 +02:00
Uli Schlachter 6d54d6b055 Port from xrandr to xcb-randr
Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-27 17:38:24 +02:00
Uli Schlachter 62b847323c Port from xdamage to xcb-damage
No functional changes intended. The new xcb_damage_query_version() was
previously done by XDamageQueryExtension() internally.

Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-27 17:29:51 +02:00
Uli Schlachter 0a98ef79ef Fix build with NO_LIBCONFIG=1
This got broken in commit fcef5e706d.

Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-09-27 17:10:43 +02:00
Yuxuan Shui 4da626639f Update comments about clear-shadow 2018-09-24 00:20:28 +01:00
Yuxuan Shui 6f59367c00 Remove the clear-shadow option
Shadows attached to ARGB/transparent windows are always cleared now.
2018-09-23 23:58:17 +01:00
Yuxuan Shui 209b751b25 Port more stuff to xcb
To avoid interoperability issues between xcb and xlib.
2018-09-23 22:58:49 +01:00
Yuxuan Shui 7af815a0aa Proper fix for screen freeze
If an X event is received at a very specific point in time, it can trigger
a race condition in Xlib. Said event will be read, but Xlib will
nonetheless be completely unaware of the event.

This cause compton to sometimes block on select() while there are events
ready to be processed. If the event is a damage report, screen freeze
will happen until some other event is received.

The proper fix is to switch to xcb for event handling, thus avoid this
problem entirely.
2018-09-22 23:57:51 +01:00
Yuxuan Shui 43f3744fea Revert "Workaround for what seems to be a race in Xserver"
This reverts commit 967d9f32ea.
2018-09-22 19:46:50 +01:00
Yuxuan Shui 967d9f32ea Workaround for what seems to be a race in Xserver
There seems to be a race between DamageAdd (what the client uses
to report damage to Xserver) and DamageSubtract (what compton uses
to clear the reported damage, so it can receive new ones). I am not
sure how to confirm this. But this (terrible) workaround seems to
solve this problem.
2018-09-10 13:46:24 +01:00
Yuxuan Shui 72231098d1 Refactoring
* Move code around
* Remove unneeded forward declaration
* Rename win->damaged to win->ever_damaged, to be less confusing
* Expose debug functions even when DEBUG is not enabled. Compiler
  would remove the dead code for us anyway.
* Some code cleanup
2018-09-10 13:46:24 +01:00
Yuxuan Shui 2adfdfa897 Clear prototypes 2018-09-10 13:46:24 +01:00
Yuxuan Shui d2b85dd6af Fix some null pointer problems 2018-09-10 13:46:24 +01:00
Yuxuan Shui 2e39fc5618 Split out win related functions to win.c
Also move static function prototypes out of compton.h. Seems like the
previous developers didn't know what header files are for.

Seems to have bugs after the split.
2018-09-10 13:46:24 +01:00
Yuxuan Shui 0d6b1627f2 Make gcc happy 2018-09-10 13:46:24 +01:00
Yuxuan Shui 571a6cf15f Enable everything OpenGL when using OpenGL
Remove finer grained macro definitions, just enable everything OpenGL
when we are using OpenGL.
2018-09-10 13:46:24 +01:00
Yuxuan Shui 3ce59930a4 More compiler warning flags 2018-09-10 13:46:22 +01:00
Yuxuan Shui 4940a93f03 c2.h cleanup
Move most of the static functions into c2.c itself, and
only keep the public functions in c2.h
2018-09-10 13:46:05 +01:00
Yuxuan Shui fcef5e706d Some cleanup work
* Remove NO_C2 option
* Split configuration related functions into their own file
* Drop support for libconfig < 1.4
* Fix dependencies in Makefile
2018-09-10 13:46:05 +01:00
Yuxuan Shui ba780659be Add repo info to usage string 2018-09-10 12:08:45 +01:00
Yuxuan Shui c8bfbd6b11 Allow setting active/inactive opacity to 0 2018-08-14 11:05:28 +01:00
Yuxuan Shui 15e3c525e3 Expose opacity_is_set, has_opacity_prop over dbus 2018-08-14 11:05:28 +01:00
Yuxuan Shui bfead72d37 Honor opacity explicitly set by rules 2018-08-14 11:05:28 +01:00
Yuxuan Shui 58a0b9ec39 Honor wintype opacity if set explicitly
Also normalize wintype opacity value to [0, 1]
2018-08-14 11:05:28 +01:00
Yuxuan Shui 66785aae99 Honor opacity prop if set
If opacity prop is explicitly set on the window, active/inactive opacity
shouldn't kick in.
2018-08-14 11:05:28 +01:00
Yuxuan Shui 91ca387723 Unify opacity_prop and opacity_prop_client
Also keep track of whether opacity prop is present on the window
2018-08-14 11:05:28 +01:00
Yuxuan Shui a1afb76c44 Warn about fallthrough
And fix some fallthroughs
2018-08-14 10:59:09 +01:00
Yuxuan Shui 27fc4a2af4 Clear compiler warnings
Thanks to chjj/compton#445
2018-05-17 12:50:22 +01:00
Yuxuan Shui af8a08e655 Remove blur limit
Thanks chjj/compton#414
2018-05-17 12:37:13 +01:00
Yuxuan Shui bf29b2dd37 Avoid using 10bit FBConfigs
Fix weird color issue with Mesa 18.0
2018-04-16 10:13:55 -04:00
Uli Schlachter 1125389910 Exit when compton loses the _NET_WM_CM_Sn selection
Again, this behaviour is required by ICCCM.

Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-04-16 10:13:55 -04:00
Uli Schlachter f8ea3e8668 Don't steal the _NET_WM_CM_Sn selection (#301)
Before becoming the selection owner for _NET_WM_CM_Sn, compton will now check if
that selection is already owned (which means that another composite manager is
already running). If this check fails, startup will be refused. This behaviour
is required by EWMH / ICCCM.

Because this should catch all composite managers, the error message that was
used before when another manager is already running is reworded to mention that
the other manager does not follow EWMH.

Signed-off-by: Uli Schlachter <psychon@znc.in>
2018-04-16 10:13:55 -04:00
Yuxuan Shui cfdb946992 Avoid using window id as identifier in finish_destroy_win
Under extreme race conditions (window A close at the same time as window
B create), there can be multiple windows with same id in compton's window
list. If at this point window B closes itself as well, finish_destroy_win
might destroy a different window as what's passed to destroy_callback.

This can be a problem because someone can still hold a reference to that
window (e.g. 't' in paint_preprocess), and there's no way to clear that
reference. If finish_destroy_win always destroy the same window passed
to destroy_callback, this will not be a problem.
2018-04-16 10:13:55 -04:00
Yuxuan Shui f4f39d1989 Avoid changing fade_callback when window is destroyed
Fix assertion at src/compton.c:1261
2018-04-16 10:13:55 -04:00
Richard Grenville 2343e4bbd2 Misc #308: Close config file after using it
Misc #308: Close the config file after using it, instead of leaving it
open forever. Thanks to SyedAmerGilani for the report.
2015-09-22 08:34:28 +08:00
Richard Grenville 20e996494b Misc: Modify function attributes
- Remove the const function attribute from get_time_*(), since the
   functions they call that actually get the time probably access global
   variables or have other behaviors unacceptable for const functions.

 - Change the const function attribute on win_has_frame() to pure, as it
   accesses memory its parameter points to, which is invalid for a const
   function.
2015-09-06 22:34:02 +08:00
Richard Grenville c156abb0e8 Bug fix #302: Use more EWMH-compliant way to determine frame extents
Bug fix: Select the larger of the X window border width and
_NET_FRAME_EXTENTS, instead of adding them together, when determining
the frame extents. (Supposedly) more EWMH compliant, as EWMH
_NET_FRAME_EXTENTS should include the X window border width already. We
did not choose to completely rely on _NET_FRAME_EXTENTS to remove the
need to keep track of whether there is a _NET_FRAME_EXTENTS, and
(hopefully) take care of some cases when it is wrong. The commit should
fix awesomeWM/awesome#425. Thanks to psychon for the information. (#302)

The commit fixes the bug in win_get_region_noframe() that the X window
border width is not considered when determining the width/height of the
window without frame, as well.
2015-09-06 22:19:19 +08:00
Richard Grenville 7d4d87d683 Misc: Add margin_t & Store frame extents with it & Misc
- Add margin_t, a structure that represents margins around a rectangle.

 - Store frame extents of a window with margin_t, replacing the 4
   fields ({left,right,top,bottom}_width) in struct _win.

 - Add two helper macros, cmemzero() and cmemzero_one(), that zero out a
   block of memory.
2015-09-06 20:53:07 +08:00
Kevin Kelley 0e0b35a361 Plug XserverRegion leak. 2015-05-12 13:17:35 -07:00
Richard Grenville 663e1a1a04 Bug fix: --active-opacity state does not change correctly on `--focus-exclude`-ed windows
Fix the bug that --active-opacity state does not change
on `--focus-exclude`-ed windows correctly, since win_update_focused()
enables the WFLAG_OPCT_CHANGE flag on a window only if w->focused
changes, while --active-opacity depends on the output of
win_is_focused_real() instead of w->focused, which could be changed even
if w->focused does not change (e.g. when the window is
`--focus-exclude`-ed).
2015-02-24 21:08:29 +08:00
Richard Grenville 3b17fe15f0 Bug fix #263: Always redirect std{out,err} if --logpath is specified
Always redirect std{out,err} if --logpath is specified, instead of only
redirect after fork, to correct the inconsistent behavior of --logpath
when getppid() returns 1. (#263)
2015-01-26 21:28:48 +08:00
Richard Grenville e4ff1a5130 Misc: Update disabled-at-compile-time notes in the usage text
- Add disabled-at-compile-time note in usage text with NO_LIBCONFIG.

 - Fix the incorrect disabled-at-compile-time note for --backend.

 - Move position of the disabled-at-compile-time note of --dbus
   slightly.
2015-01-11 16:24:54 +08:00
Richard Grenville 03ebae4c33 Bug fix: Compilation failure with NO_VSYNC_OPENGL=1
Fix compilation failure with NO_VSYNC_OPENGL=1, caused by one
incorrectly placed "#endif" in "src/common.h".
2015-01-11 10:47:19 +08:00
Richard Grenville 65e655e3bc Bug fix: --no-fading-openclose doesn't work when fading out
- Fix the bug that --no-fading-openclose doesn not work when fading out
   by writing w->fade_last as well in win_determine_fade().

 - Write w->fade_last for applying w->fade_force, as well.
2014-11-30 15:39:07 +08:00
Richard Grenville 6d8fde457a Bug fix #244: Build failure with -DDEBUG_EVENTS
Fix build failure with -DDEBUG_EVENTS, caused by incorrect references to
X Sync macros. Thanks to blueyed for reporting. (#244)
2014-11-24 22:31:54 +08:00
Richard Grenville 5910dbae8a 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.
2014-11-24 22:03:07 +08:00
Richard Grenville 651a66131f Bug fix #224: Flush after XUngrabServer()
Fix #224 by XFlush() after XUngrabServer(). Thanks to rathsky and smlx
for reporting.
2014-10-06 11:36:47 +08:00
Richard Grenville 8c88b4d6f1 Misc #204: Add glx_take_screenshot() & others
- Add glx_take_screenshot() for taking a screenshot. With ImageMagick
  the output data could be viewed in this way:

    display -size [SCREEN-WIDTH]x[SCREEN-HEIGHT] -depth 8 -flip
    rgb:[PATH]

  (#204)

- Add D-Bus command `opts_get string:paint_on_overlay_id` to get X
  Composite overlay window ID. (#204)

- Code cleanup.
2014-09-07 18:58:09 +08:00
Richard Grenville c5f45c8e3c Merge branch 'richardgv-dev' of github.com:chjj/compton into richardgv-dev 2014-09-07 16:07:26 +08:00
Richard Grenville 094b75eef7 Misc: Add --no-name-pixmap
Add --no-name-pixmap to disable the usage of
XCompositeNameWindowPixmap(), for debugging.
2014-09-07 16:05:14 +08:00
mæp 72301f9177 fix crash caused by free of uninitialized pointer 2014-08-06 20:42:57 +02:00
Richard Grenville 4f9050f53f Misc: Fix spelling mistakes
Still, "Guassian" -> "Gaussian". (#221)
2014-08-06 07:32:53 +08:00
Richard Grenville a801118c04 Bug fix: Fix X pixmap leakage in shadow_paint
- Fix X pixmap leakage in shadow_paint.

- Add the skeleton of a X resource leakage checker.
2014-08-03 19:40:40 +08:00
Richard Grenville 3cfbaac955 Misc: Fix compilation with NO_VSYNC_OPENGL_GLSL / NO_C2
Fix compilation with NO_VSYNC_OPENGL_GLSL / NO_C2.
2014-07-29 09:29:26 +08:00
Richard Grenville 4724c1f21a Misc #218: Warn about using --glx-no-rebind-pixmap on intel driver
Warn about using --glx-no-rebind-pixmap on xf86-video-intel. Thanks to
aktau for the info. (#218)
2014-07-28 16:54:02 +08:00
Richard Grenville 234e3e8cda Improvement: Separate GLX parts from session_t & Attempt to fix #217
- Separate GLX parts from session_t into glx_session_t.

- Add --rererdir-on-root-change and --glx-reinit-on-root-change, as
  possible solutions for #217. Thanks to jlindgren90 for reporting.
2014-07-28 12:50:15 +08:00
Richard Grenville 4e8ccea252 Misc: Add --version & --no-x-selection
- Add --version. (#206)

- Add --no-x-selection for debugging. (#207)
2014-07-13 09:34:38 +08:00
Michael Reed a29b7958cf whitespace cleanup 2014-07-04 06:27:13 -04:00
Richard Grenville 3a3e1387ac Misc #205: Add 2 long options & Update documentation
- Add two long variants of short options.

- Update documentation.
2014-06-15 11:51:59 +08:00
Richard Grenville 81c677f28b Feature: #183 custom window shader & #193 --no-fading-destroyed-argb
- Add --glx-fshader-win, which specifies a custom fragment shader for
  painting windows. compton-default-fshader-win.glsl is the shader with
  default behavior, and compton-fake-transparency-fshader-win.glsl
  provides a template of fake transparency. (#183)

- Add --force-win-blend to force all windows to be painted with
  blending.

- Add --no-fading-destroyed-argb, as a workaround of bugs in some WMs.
  (#193)
2014-05-16 15:18:17 +08:00
Richard Grenville bb55706c05 Bug fix #195: Pointer incompatibility with libconfig-1.3*
Fix pointer incompatibility with libconfig-1.3*. Thanks to
sstewartgallus for reporting. (#195)
2014-05-10 12:21:23 +08:00
Richard Grenville 349af129b8 Bug fix #194: Fix assertion failure in some cases
Fix assertion failure when evaluating --unredir-if-possible-exclude or
--paint-exclude on unmapped windows. Thanks to ppuryear for reporting.
(#194)
2014-04-28 21:21:16 +08:00
Richard Grenville ef58e4e417 Bug fix #191: Add rounded-corners detection to --unredir-if-possible
Add `bounding_shape` and `rounded_corners` as condition match target.
Deprecate --shadow-ignore-shaped. Add rounded-corners detection to
win_is_fullscreen(). Slightly modify win_rounded_corners() logic. Thanks
to tdryer for reporting. (#191)
2014-04-21 22:45:27 +08:00
Richard Grenville 15cd6aad38 Misc: Fix a possible assert() failure 2014-04-21 07:49:29 +08:00
Richard Grenville b7b043c3cc Bug fix #190: Copy shadow/fade state from last paint on unmapped wins
Copy shadow/fade/color-inversion/background-blur state from last paint
on unmapped windows. I hope it doesn't have unexpected side effects.
(#190)
2014-04-19 21:52:20 +08:00
Richard Grenville 9a99e7a0dd Misc: Try to avoid evaluating conditions after window unmap & others
- Try to avoid evaluating conditions after window unmap/destruction.
  Unfortunately, frequently this doesn't work due to the asynchronous
  nature of X.

- Add _GTK_FRAME_EXTENTS exclusion rules to compton.sample.conf. Thanks
  to memeplex, hexchain, and others for info. (#189)

- Add debugging option --show-all-xerrors, and other debugging changes.
  Doc update.
2014-04-19 19:41:26 +08:00
Richard Grenville 360da12d86 Misc: Add --xrender-sync{,-fence} as configuration file option
- Add --xrender-sync{,-fence} as configuration file option.

- Quit on encountering invalid opacity rule.

- Other small changes.
2014-03-26 22:27:25 +08:00
Richard Grenville e4f3a2d77a Bug fix #181: Add --xrender-sync{,-fence}
- Add --xrender-sync{,-fence} to deal with redraw lag issue on GLX
  backend. --xrender-sync-fence requires a sufficiently new xorg-server
  and libXext. NO_XSYNC=1 may be used to disable it at compile time.
  Thanks to tchebb for reporting and everybody else for testing. (#181)

- A bit code clean-up. Replace a few XSync() with XFlush() to minimize
  the latency.
2014-03-17 23:25:34 +08:00
Richard Grenville 9950d08ab7 Misc: xr-glx-hybrid alias & minor fixes
- Add "xr-glx-hybrid" as an alias of "xr_glx_hybrid". (#163)

- Clear damage history in expose_root() and when root window size
  changes. Unfortunately this doesn't fix #181.
2014-03-11 07:22:23 +08:00
Richard Grenville 8a5becf617 Bug fix: Fix -S
Fix the broken -S.
2014-02-27 22:08:30 +08:00
Richard Grenville aeda1482ce Bug fix: Fix access to freed memory due to invalid w->prev_trans
- Fix a bug that w->prev_trans sometimes points to freed memory.
  Probably related to #165.

- Add some more debugging printf()-s under DEBUG_EVENTS.
2014-01-21 22:13:06 +08:00
Richard Grenville f1f7b050af Bug fix #163: xr_glx_hybrid: Flickering issue
xr_glx_hybrid backend: Attempt to fix flickering issue. Thanks to cju
for testing.
2014-01-19 08:04:14 +08:00
Richard Grenville 3e783f3e1e Misc #163: Make usage of glFinish() optional
Make usage of glFinish() optional to avoid high CPU usage. (#163)
2013-12-26 20:43:06 +08:00
Richard Grenville 9e053910f2 Misc #152: Fix a spelling mistake
Fix a spelling mistake (xr_glx_hybird -> xr_glx_hybrid). Thanks to cju
for reporting.
2013-12-24 07:46:48 +08:00
Richard Grenville fbd70e146c Feature: Add XRender-GLX hybird backend
- Add new backend "xr_glx_hybird", which uses X Render for all
  compositing but GLX on the last step of rendering to screen.  This
  makes GLX-backend-specific VSync methods usable while may avoid
  certain bugs with GLX backend. The idea comes from ali1234.
  Experimental.

- GLX backend: Stop using or rendering to depth buffer.

- Use glFinish() instead of glFlush() before VSync. It probably uses
  more CPU but could be more reliable than glFlush().
2013-12-10 22:06:02 +08:00
Richard Grenville c02a867e6f Misc: Add properties to the registration window
Add WM_CLASS, COMPTON_VERSION, and _NET_WM_PID properties to the
registration window, to ease the development of pcman's compton-conf.
2013-11-10 10:13:18 +08:00
Richard Grenville 46e6abdd2a Misc: --write-pid-path & small changes
- Add --write-pid-path to write process ID to a file, to help
  determining compton's process ID when -b is used.

- Add a few extra targets to query through D-Bus opts_get (version, pid,
  etc.) and through win_get, primarily for debugging.

- Add helper macros likely(), unlikely(), cmalloc(), ccalloc(),
  crealloc().

- Change w->opacity_set to opacity_t. Determine display_repr in
  session_init(), etc.
2013-11-09 21:38:31 +08:00
Richard Grenville d8977408fd Bug fix #153: Possible fix for a rare timing issue
Possible fix for a very rare timing issue in focus detection. Compton
may fail to detect the currently focused window, when a window newly
mapped gets focused, we failed to listen to events and get FocusIn from
it in time, and a series of focus change events before it happens stay
in the event queue and puzzled compton. My choice is to force focus
recheck on all focus-related events. More roundtrips to X, but not
necessarily worse performance, due to the high cost of focus flipping
especially when there's a lot of conditions. Thanks to SlackBox for
reporting.  (#153)
2013-10-21 22:17:01 +08:00
Richard Grenville 796e2c6fec Bug fix #149: --opacity-rule misbehaves on 32-bit systems & others
- Fix a bug that --opacity-rule misbehaves with a value higher than 50%
  on 32-bit systems. Thanks to mrinx for reporting. (#149)

- Fix a bug that opacity-rule in configuration file does not work.
2013-10-01 23:20:22 +08:00
Richard Grenville fc8ec8851f Misc: Typo in vsync_opengl_init()
I typed ps->glXGetVideoSyncSGI as ps->glXWaitVideoSyncSGI...
2013-09-26 07:41:11 +08:00
Richard Grenville f202223572 Misc: Add cfg file options for --unredir-if-possible-*
Add configuration file options for
--unredir-if-possible-{delay,exclude}. (#140)
2013-09-24 20:41:50 +08:00
Richard Grenville 4bd3db2bc7 Bug fix #99: Rewrite focus detection logic
- Rewrite focus detection logic. Remove w->focused_real and use
  ps->active_win to identify focused window uniformly. Use a more
  expensive way to filter FocusIn/Out events to improve reliability.
  Only limited tests are done, and bugs are likely to be introduced.
  (#99)

- Known issue: Under fvwm, compton sometimes does not consistently
  report the window input gets sent to. But there's something wrong in
  that case: XGetInputFocus() shows the root window is focused but
  another window is receiving input.
2013-09-18 22:41:40 +08:00
Richard Grenville 747ffaef0f Bug fix #144: Workaround for insane window type changes
Dynamically detect window type as a workaround to insane applications.
Thanks to Feltzer for reporting. (#144)
2013-09-15 11:07:49 +08:00
Richard Grenville 926ae379ba Bug fix #143: GLSL shader error on European locales
Set LC_NUMERIC=C when generating GLSL shader strings to avoid decimal
point issues on European locales. Thanks to hiciu for reporting.
2013-09-15 08:56:53 +08:00
Richard Grenville 5da802634a Bug fix #143: Move setlocale(LC_NUMERIC, "C")
Move setlocale(LC_NUMERIC, "C") to a better place, in hope to fix #143.
Thanks to hiciu for reporting!
2013-09-14 10:04:38 +08:00
Richard Grenville e9d187f03e Bug fix #140: Possible fix for CPU usage with --unredir-possible-delay
- Possible fix for high CPU usage with a low --unredir-possible-delay.
  Thanks to Feltzer for reporting. (#140)

- Rewrite some parts to (hopefully) increase performance, especially
  with --unredir-if-possible.

- Known issue: With GTX 670 and x11-drivers/nvidia-drivers-325.15, and
  compton --unredir-if-possible --config /dev/null, if you send a
  SIGUSR1 to compton when a full-screen solid window is there, in which
  case compton either redirects then immediately unredirects the screen,
  or just don't redirect it altogether, X freezes after compton
  unredirects the screen. Requests sent by other X clients are not
  responded until compton is killed, which indicates the possibility of
  a bug in X.  Attaching to X process shows X is on ./os/waitFor.c.
  Backend does not matter. --paint-on-overlay fixes the issue somehow.
  compton-git-v0.1_beta1-5-g4600f43-2013-08-28 doesn't exhibit the
  issue, but it's probably timing-related.
2013-09-12 21:23:20 +08:00
Richard Grenville 4acbd56722 Improvement: --unredir-if-possible-exclude & --unredir-if-possible-delay
- Add --unredir-if-possible-exclude, to exclude certain windows when
  evaluating --unredir-if-possible. (#140)

- Add --unredir-if-possible-delay, to add some delay before
  unredirecting screen. (#138, #140)

- Code clean-up.
2013-09-04 22:00:51 +08:00
Richard Grenville 5350127b72 Misc: GLX: Avoid using multi-sampling visuals
Avoid using multi-sampled visuals, like the cogl patch:
http://people.freedesktop.org/~glisse/0001-glx-do-not-use-multisample-visual-config-for-front-o.patch
2013-09-03 21:14:40 +08:00
Richard Grenville 4600f435dd Bug fix #137: Auto-detect screen changes
Attempt to auto-detect screen changes to address the issue reported by
Feltzer.
2013-08-28 21:54:04 +08:00
Richard Grenville 5d4ed8f43f Misc: Add missing configuration file options and switches
- Add "xinerama_shadow_crop" configuration option.

- Add long commandline switches corresponding to the short ones.

- Documentation update.
2013-08-26 22:00:53 +08:00
Richard Grenville 3e71f8fa25 Improvement #137: --xinerama-shadow-crop
Add --xinerama-shadow-crop to crop shadow to current Xinerama screen.
Thanks to Feltzer for suggestion.
2013-08-22 21:44:15 +08:00
Richard Grenville 7417f0deee Misc: stoppaint_force & Documentation update
- Add stoppaint_force option, controlled via D-Bus, to stop painting
  completely, which may look better than unredirecting the screen,
  sometimes. (#41)

- Add x2, y2 matching targets.

- Update documentation.
2013-07-30 22:24:11 +08:00
Richard Grenville b46deb5162 Improvement #41: Enable/disable redirection through D-Bus
- Add "redirected_force" to D-Bus opts_get to forcefully
  redirect/unredirect windows.

- Add D-Bus method "repaint", to, namely, repaint the screen.
2013-07-26 13:02:06 +08:00
Richard Grenville b1e0ef8ecd Bug fix #124: GLX: Missing check on FBConfig X visual depth
- Check FBConfig X visual depth, like Compiz, to fix issues with
  nvidia-drivers-325.08 . Thanks to guotsuan for reporting.
2013-07-05 23:22:58 +08:00
Richard Grenville b26bbc0099 Misc: OpenGL 3.0 compatibility & misc
- Fix OpenGL 3.0 compatibility by changing glFramebufferTexture() to
  glFramebufferTexture2D(). Thanks to danfe for suggestion!

- Add notification about DocBook toolchina dependencies. Thanks to
  danfe. (#121)
2013-06-25 23:08:41 +08:00
Richard Grenville c02b3fadf0 Misc: --paint-exclude & #119
- Add --paint-exclude to prevent certain windows from being painted, for
  debugging purposes.

- Add predefined matching target "x", "y", "width", "height", "widthb",
  "heightb", "border_width", and "fullscreen".

- Fix bug #119, wrong man page install dir in CMake configuration.
  Thanks to sstewartgallus for reporting.
2013-06-19 19:36:48 +08:00
Richard Grenville 044a5c991c Feature #116: Shadow exclusion region
- Add --shadow-exclude-reg, which excludes certain regions on the screen
  to have shadows painted in. (#116)

- Adjust session initialization order. Now X root and screen info and
  basic X extensions are available in configuration parsing step.
2013-06-09 17:09:28 +08:00
Richard Grenville 75ebd56f74 Feature #113: Set opacity based on conditions
- Add --opacity-rule, which sets opacity based on conditions, as
  requested by zabbal. (#113)

- Add a data field for each condition.

- Correct the FAQ link in README.md. Silly me.

- Code clean-up.
2013-05-21 09:26:18 +08:00
Richard Grenville 07bc7485c3 Imp: Multi-pass blur & D-Bus fading control
- Add multipass blur support. Note GLX Framebuffer support is required.
  My benchmark shows multipass blur brings 5% performance boost for X
  Render backend (3x3box). On GLX backend it brings 10% performance
  boost for 5x5box but negatively affects performance for 3x3box. Thanks
  to jrfonseca for advice. (#107)

- GLX backend: Cache blur texture for each window, for a 12% performance
  boost.

- Add D-Bus fading control. Thanks to yulan6248 for testing. (#112)

- Fix FAQ link in README.md. Thanks to lorenzos for report. (#111)

- Correctly deinitialize VSync on on-the-fly VSync method switch.

- X Render backend: Normalize blur kernel.

- Code clean-up.

- Known issue: Linear corruption on border of a window may appear with X
  Render multi-pass blur. Possible to fix but probably not worthwhile.
2013-05-20 18:16:27 +08:00
Richard Grenville 57d8b940e7 Misc: Add DEBUG_GLX_MARK & Misc
- GLX backend: Add DEBUG_GLX_MARK, to add GL marks around functions with
  glStringMarkerGREMEDY(), and mark frame termination with
  glFrameTerminatorGREMEDY().

- Print output of `compton -h` to stdout. (#110)

- GLX backend: Strip out elements with factor 0 in GLSL blur code.
  Thanks to jrfonseca for guides. (#107)
2013-05-12 18:21:16 +08:00
Richard Grenville 90099d371d Bug fix: Compilation failure with NO_LIBCONFIG / NO_C2
- Fix compilation failure with NO_LIBCONFIG or NO_C2. Thanks to
  Spaulding for reporting.
2013-05-09 21:47:09 +08:00
Richard Grenville 48fb54dfae Misc: Add DEBUG_GLX_PAINTREG
- GLX: Add DEBUG_GLX_PAINTREG, for debugging painting region issues, for
  p4ddy's problem.
2013-05-09 09:43:40 +08:00
Richard Grenville 1c66237f99 Imp: Fix GL_TEXTURE_RECTANGLE & Enhance --glx-copy-from-front
- Fix GL_TEXTURE_RECTANGLE support. Thanks to amonakov for guides.
  (#107)

- Enhance --glx-copy-from-front to improve performance and make it work
  with --glx-swap-method, copied from kwin patch. Thanks to bwat47 for
  info. (#107)

- Add texture2Doffset() support in blur GLSL shader. Thanks to amonakov
  for advice. No visible benefit here, though. (#107)

- Only limited tests are done and I'm super sleepy. Bugs expected
2013-05-08 22:50:02 +08:00
Richard Grenville 7a4f5920d8 Misc: Validate wallpaper pixmap & Documentation update
- Split Pixmap validation out to validate_pixmap(). Validate wallpaper
  Pixmap as well.

- Update README.md and man page.
2013-05-01 22:08:43 +08:00
Richard Grenville a3f6f4442b Improvement: Add predefined blur kernels
- Add a few predefined blur kernels, requested by jerri in #104.

- Add compton-convgen.py to generate blur kernels.
2013-04-29 22:42:46 +08:00
Richard Grenville abd559c512 Bug fix: Fix a BadRegion error with --glx-use-copysubbuffermesa
Just a small and mostly harmless issue. Sorry, didn't test throughly.
2013-04-27 20:43:39 +08:00
Richard Grenville 3f00b3622c Bug fix: Fix --resize-damage
- Fix --resize-damage. I forgot to shrink the painting region back when
  actually copying to destination.

- Include extra pixels around the blur texture to avoid some possible
  small issues, if --resize-damage is positive.

- Known issue: Line artifacts may still appear with --dbe (X Render
  backend) or --glx-swap-method (GLX backend). I doubt if there's way to
  fix this without very inefficient mechanisms.
2013-04-27 17:44:10 +08:00
Richard Grenville 8113e4e3b4 Improvement: --resize-damage
- Add --resize-damage to enlarge/shrink repaint region by a specific
  number of pixels, used for solving the line corruption issue with
  blur. Thanks to Nuck and jerri in #104 for reporting.

- Fix the memory leak of blur shader string.
2013-04-27 11:43:11 +08:00
Richard Grenville c93d8830ff Misc: Fix gcc error
Fix gcc compilation error about "initializer element is not constant".
2013-04-26 16:14:37 +08:00
Richard Grenville 5d654e6877 Improvement: Enhance --glx-swap-method
- Enhance --glx-swap-method to support longer buffers ages (3-6), and
  automatic buffer age detection via GLX_EXT_buffer_age.
2013-04-26 14:01:20 +08:00
Richard Grenville 2e6fb0203d Improvement: --blur-kern
- Add blur convolution kernel customization, --blur-kern. The format is
  a bit tricky so be sure to read the description in `compton -h`. Not
  much tests received.

- GLX backend: Tolerate missing GLSL uniforms for strangely shaped
  convolution kernel.

- Fix a memory leak that blur-background blacklist is not freed.
2013-04-25 22:23:35 +08:00
Richard Grenville 4a4f857cc2 Misc: Fix wrong description & DEBUG_GLX_ERR
- Fix description of "opengl" VSync.

- Add DEBUG_GLX_ERR to check for OpenGL errors.

- Update man page.
2013-04-25 09:27:14 +08:00
Richard Grenville 85e7d18803 Improvement: --glx-swap-method & --fade-exclude
- GLX backend: Add --glx-swap-method, to reduce painting region if the
  driver uses exchange or copy buffer swaps. Untested.

- Add --fade-exclude, to disable fading on specific windows based on
  some conditions. Untested.

- Expose GLX backend options through configuration file. Add fetching of
  GLX backend options through D-Bus.

- Use NULL pointer instead of element count to delimit string arrays in
  parse_vsync()/parse_backend()/parse_glx_swap_method().

- Add documentation about "wintypes" section in configuration file.
2013-04-21 22:30:22 +08:00
Richard Grenville a053c0ac64 Bug fix: GLX: Fix dim and blur with --glx-no-stencil
- GLX backend: Fix broken dim and blur with --glx-no-stencil when
  dealing with shaped windows.

- GLX backend: Cache region contents and do a local region intersection
  instead of using XFixesIntersectRegion(). Drastic reduction in CPU
  usage for --glx-no-stencil. Now --glx-no-stencil substantially
  outperforms (~15%) normal mode.

- Use macros to reuse paint-in-region code in opengl.c . Add new type
  "reg_data_t" to store XserverRegion cache.
2013-04-06 20:21:38 +08:00
Richard Grenville e3a15d5f94 Improvement: GLX: Cache region contents & --glx-no-rebind-pixmap
- Cache region contents in is_region_empty(), mostly useful only for GLX
  backend to save one roundtrip to X.

- GLX backend: Add --glx-no-rebind-pixmap, which prevents rebinding of
  GLX texture to pixmap on content change. It doesn't work on some
  drivers, but it saves some CPU on those where it does.

- Wrap XFree() with a new function cxfree() since its man page claims
  NULL pointers are not acceptable (although in fact it does...).

- Use macro to save some code in get_cfg(). Code clean-up.
2013-04-05 21:05:19 +08:00
Richard Grenville 6ef23e066f Misc: Workaround for some missing definitions
- Add workarounds for missing GL_TEXTURE_RECTANGLE and PictOpDifference
  definitions in broken GL headers / old X Composite headers.
2013-04-03 10:53:04 +08:00
Richard Grenville dfd4dd1122 Feature #4: Default active window opacity
- Add default active window opacity (--active-opacity). (#4)

- Add win_focusin and win_focusout D-Bus signals.
2013-03-30 12:27:27 +08:00
Richard Grenville 9e607b2543 Bug fix: GLX: Fix --inactive-dim & fix color inversion
- GLX backend: Fix broken --inactive-dim.

- GLX backend: Fix bugs when inverting colors of windows. Thanks to
  madsy and neure for help.

- GLX backend: Lift `glx_no_stencil` restriction from glx_init_blur().
  It still probably won't work, but the user can try.

- XRender backend: Use XRenderFillRectangles() instead of
  XRenderComposite() to do dimming.
2013-03-25 11:36:39 +08:00
Richard Grenville 75912d23f3 Improvement: --blur-background-exclude #98 & MESA_swap_control & others
- Add --blur-background-exclude. (#98)

- Add `opengl-mswc` VSync, which uses MESA_swap_control instead of
  SGI_swap_control. I don't expect it to perform better than
  SGI_swap_control, though.

- Update CMakeLists.txt .

- Add a few targets for D-Bus `win_get`. Misc changes.

- Known issue: Apparently I've forgotten implementing --inactive-dim on
  GLX backend... Silly me.
2013-03-23 22:06:41 +08:00
Richard Grenville 65cda415dd Bug fix: Incorrect handling when a window is placed on bottom
- Fix a bug that ConfigureNotify placing a window in bottom
  (ConfigureNotify with .new_above == 0) is not correctly handled,
  introduced in 1a88e3d0c5.
2013-03-22 16:44:03 +08:00
Richard Grenville 4b734c1fa1 Improvement: --glx-use-copysubbuffermesa
- GLX backend: Add --glx-use-copysubbuffermesa, to use
  MESA_copy_sub_buffer to do partial screen update. Huge performance
  boost on mesa drivers for partial screen updates, but does not work
  for nvidia-drivers and may break VSync. Automagically overrides
  --glx-copy-from-front.

- Add rect_is_fullscreen() to reuse code. Misc changes.
2013-03-21 13:05:56 +08:00
Richard Grenville 8208ec6dc8 Feature #69: GLX: Blur background
- GLX backend: Add blur background support using a GLSL shader. Only
  tested with nvidia-drivers-313.26. Known to cause quite some decrease
  in performance (~10%?).

- Detach shaders in glx_create_program(). Misc changes.
2013-03-20 17:29:45 +08:00
Richard Grenville 725bc40a65 Improvement: --glx-copy-from-front & benchmark mode
- GLX backend: Add --glx-copy-front, which copies all unmodified regions
  from front buffer to back buffer instead of redrawing the whole
  screen. Unfortunately, probably because glCopyPixels() isn't usually
  well-optimized on graphic cards, this option appears very unstable in
  its effect: Over 20% boost in performance when only 1/4 of the screen
  is modified, but 10% decrease when the whole screen is. Thus, not
  enabled by default.

- GLX backend: Add glx_blur_dst(), to prepare for the background blur
  feature. It currently is capable to modify background in the desired
  way, but the core blur shader is absent. glConvolution2D() seemingly
  relies entirely on CPU and has horrifying performance. I've hesitating
  about whether I should use ARB assembly language or GLSL for the
  shader.

- GLX backend: Invert y-axis GL matrix. It's upside-down previously
  because that's what dcompmgr uses. Seemingly a "normal" y-axis is
  required for glCopyPixels() to operate correctly.

- GLX backend: Fix some GLX_TEXTURE_RECTANGLE compatibility issues.
  Still, not actually tested.

- Add benchmark mode (--benchmark & --benchmark-wid).

- Misc changes.
2013-03-19 20:58:55 +08:00
Richard Grenville a41f05ea92 Improvement: GLX: Use SCISSOR_TEST instead of STENCIL_TEST when possible
- GLX backend: Use GL_SCISSOR_TEST instead of STENCIL_TEST if there's
  only one rectangle in glx_set_clip(). Profiling with gDebugger shows a
  10% performance improvement.

- Add .desktop installation rules. (#97)
2013-03-18 19:01:18 +08:00
Richard Grenville 1a88e3d0c5 Bug fix: GLX: ARGB texture too dark & Jitter when resize & others
- GLX backend: Fix a bug that ARGB windows / shadows are rendered too
  dark. Thanks to derhass in FreeNode/##opengl for help.

- GLX backend: Fix a problem that during window resize the content looks
  jittering, by letting compton fetch pixmap sizes with XGetGeometry()
  instead of relying on window width/height, which could be inaccurate
  during window resize. Negative effect on performance. Thanks to M4he
  for reporting. (#7)

- Add .desktop file. Thanks to quequotion for providing it. (#97)

- Avoid checking presence of window pixmap, because they may not exist
  with very old X Composite implementations.

- Add workaround for a strange window restack issue when compton
  receieves a ConfigureNotify with non-existent new above window.

- Add debugging function hexdump(). Extra sanity checks on various
  places.
2013-03-18 13:29:14 +08:00
Richard Grenville b6a99334ce Bug fix: GLX backend incompatibility with VirtualBox & others
- GLX backend: Fix a bug that window content does not get updated on
  VirtualBox, by rebinding texture when window content changes. This may
  have a negative effect on performance.

- GLX backend: Add --glx-no-stencil to restore the old clipping method,
  just in case.

- GLX backend: Apply stricter checks on texture-pixmap binding.

- GLX backend: Fix a bug that glx_set_clip() behaves incorrectly when
  None is passed in.

- GLX backend: Use glEnable()/glDisable() to toggle stencil tests, in
  hope to increase performance.

- Move window pixmap/picture fetching to win_paint_win(), in hope to
  increase performance.

- Intersect shadow painting region with its bounding rectangle, in hope
  to increase performance.
2013-03-17 12:14:00 +08:00
Richard Grenville 66be1f2fe1 Bug fix: GLX backend incompatibility with mesa & others
- Fix a bug that glx_bind_pixmap() doesn't work with mesa drivers.
  Thanks to Janhouse and mkraemer for reporting. (#7)

- Use stencil buffer to attempt to eliminate potential double-paint
  issue in glx_render(). X Fixes doesn't guarantee the rectangles in a
  region do not overlap, and this may cause some regions to be painted
  twice, which would be a problem if we are painting transparent things.
  Now the target window must have a stencil buffer. Compiz uses its own
  region implementation to deal with this, but as a lightweight
  compositor we can't really do the same. It may have a positive or
  negative effort over performance. Callgrind result indicates basically
  no change in performance, but this may or may not be true.

- Correctly distinguish GL extensions and GLX extensions. Sorry. :-D

- Handle screen size. Thanks to tsmithe for reporting. (#7)

- Rename OpenGL backend to GLX backend, because, we might have a EGL
  backend someday.

- Add configuration file option `backend` to specify backend. Add
  `backend` to D-Bus `opts_get`.

- Add OpenGL shader compilation code, but currently unused.

- Minor adjustments.

- Known issue: Window content doesn't get updated in VirtualBox,
  probably because its OpenGL implementation requires constant rebinding
  of texture. But that's really slow...

- Known issue: Blur feature is still unimplemented in GLX backend.
2013-03-16 22:54:43 +08:00
Richard Grenville 8ffcf1c1e8 Feature: OpenGL backend
- Add experimental OpenGL backend (--opengl). --blur-background is
  currently not possible with this backend, because I'm still trying to
  find a proper way to do blur with OpenGL. Flipping backend on-the-fly
  is really hard, so it isn't supported right now. No configuration file
  option exists to enable this, because it isn't stable enough.

- Add `opengl-swc` VSync method that uses SGI_swap_control to control
  buffer swap, with OpenGL backend. (#7)

- Fix a potential read-from-freed-memory issue in paint_all().

- Correctly reattach GLX context after fork.

- Dump error text in error(). Add GLX error code handling.

- Code clean-up.

- Known issues: Region operations take a lot of time in glx_render().
  I'm hesitating about what to do.
2013-03-15 23:16:23 +08:00
Richard Grenville 4bc3de81ab Bug fix: Create OpenGL context only after initializing overlay
- Create OpenGL context only after initializing overlay, which fixes a
  bug that --paint-on-overlay does not work with OpenGL VSync. Thanks to
  tsmithe for reporting. (#7)
2013-03-12 09:43:14 +08:00
Richard Grenville aace60be59 Improvement: ARGB window matching & Enable track_focus with D-Bus
- Add predefined matching target "argb" to match ARGB windows.

- Make it possible to enable focus tracking on-the-fly with D-Bus
  method.
2013-03-10 18:45:54 +08:00
Richard Grenville b3652f6746 Bug fix #93: Assertion failure when window reparented
- Fix an assertion failure that occurs when a window is reparented to
  the root window then immediately to another window. Thanks to smlx for
  reporting.

- Add extra debugging info for ReparentNotify.
2013-03-03 21:53:08 +08:00
Richard Grenville e3eca7ac61 Bug fix #91: Using pkg-config to find drm.h & OpenGL changes
- #91: Use pkg-config to find drm.h to avoid issues on FreeBSD. Thanks
  to hun7err for pointing out and providing patch.

- #89: Add default shadow exclusion rule for notify-osd. Thanks to
  DanielRS.

- Check for abundant positional arguments.

- Use paint target window (root window / overlay window) instead of
  ps->reg_win to create GLXContext. (May have negative effects on OpenGL
  VSync.) Add new OpenGL helpers functions, to prepare for the new
  OpenGL backend.

- Dump more info of a PropertyNotify with DEBUG_EVENTS.
2013-03-01 12:41:16 +08:00
Richard Grenville 8e34736c19 Improvement: Change VSync mode with D-Bus & Makefile update & Misc
- Add on-the-fly VSync option modification via D-Bus, as requested by
  kunitoki (#80). Expose parse_vsync(), create vsync_init() and
  ensure_glx_context().

- Change default value of ps->drm_fd to -1.

- Update Makefile. Change the install/uninstall rules and add doc
  installation, requested by hasufell in #85.

- Mark window not damaged in map_win(). It helps in reducing flickering
  with inverted window color, but I'm not completely sure if it's safe.

- Avoid modifying w->invert_color when window is unmapped.

- Update documentation. Thanks to hasufell for pointing out.
2013-01-31 22:56:54 +08:00
Richard Grenville 1b5273c819 Improvement #7: Add GLX_OML_sync_control VSync support
- Add "vsync-oml" VSync method, using GLX_OML_sync_control. Untested,
  because it's not supported by my driver.

- Unredirect ps->reg_win, because DRI wiki says it's related to the
  behavior of OpenGL VSync extensions.

- Add glFlush() and glXWaitX() calls, in hope they are slightly helpful
  for VSync.

- Change a few functions to make error handling more graceful. Make some
  errors fatal. Code clean-up.

- Add unused function make_text_prop().
2013-01-30 13:41:08 +08:00
Richard Grenville 42e17cb4e9 Improvement: Improve color inversion performance & Validate pixmap
- Try to improve the performance of color inversion by applying clipping
  region during color inversion. (#75)

- Validate pixmap on window unmap/destruction. Probably slightly helpful
  for #52.

- Change the design of unmap_win() and destroy_win(), a bit.

- Add warning message to help messages about features disabled at
  compile time, instead of dropping their description completely. (#85)

- Silence some warnings. Code clean-up.
2013-01-29 09:57:04 +08:00
Richard Grenville 152ad5fb57 Merge branch 'master' into richardgv-dev
Conflicts:
	src/compton.c
2013-01-29 07:58:40 +08:00
hasufell 59e7ea63c5 hide disabled features from help output 2013-01-28 17:08:34 +01:00
Richard Grenville 6d36ef2d0f Feature #16: Advanced window matching
- Add advanced window matching system, capable of matching against
  arbitrary window properties as well as a series of internal
  properties, with 4 additional operators (>, <, >=, <=) useful for
  integer targets, and support of logical operators. The old matching
  system is removed, but compatibility with the format is retained.

- As the new matching system is pretty complicated, and I have no past
  experience in writing a parser, it's pretty possible that bugs are
  present. It also has inferior performance, but I hope it doesn't
  matter on modern CPUs.

- It's possible to disable matching system at compile time with NO_C2=1
  now.

- Add ps->o.config_file to track which config file we have actually
  read. Queryable via D-Bus.

- Parse -d in first pass in get_cfg() as c2 needs to query X to get
  atoms during condition parsing.

- Fix a bug in wid_get_prop_adv() that 0 == rformat is not handled
  correctly.

- Fix incompatibility with FreeBSD sed in dbus-examples/cdbus-driver.sh
  .

- Add recipe to generate .clang_complete in Makefile, used by Vim
  clang_complete plugin.

- Add DEBUG_C2 for debugging condition string parsing. DEBUG_WINMATCH is
  still used for match debugging.

- Rename win_on_wdata_change() to win_on_factor_change().

- Extra malloc() failure checks. Add const to matching cache members in
  session_t. Code clean-up. Documentation update.
2013-01-28 21:39:38 +08:00
Richard Grenville 00424b1082 Bug fix #84: Root window not repainted sometimes on wallpaper change
- Fix a bug that root window is not repainted on wallpaper change unless
  an Expose X event is received. Seemingly, if there's no mapped window
  on a screen, X will not send an Expose event when the wallpaper
  changes. Thanks to baskerville for reporting.

- Fix a X Pixmap leak when there's no existing wallpaper pixmap found.

- Fix a bug in mstrncpy() that null character is not added to the end of
  the copied string.

- Make VSYNC_STRS public, for use in src/dbus.c. Adjust the type of
  WINTYPES array. Add NUM_VSYNC.

- Add more targets for various D-Bus methods. Add "bad_target" D-Bus
  error. Improve error handling. Add more helper functions to append
  arguments to a D-Bus message. Add Introspect method to D-Bus
  introspection reply.

- Add public declarations of things in the new condition format code to
  common.h. Move definitions of some inline functions from compton.h to
  common.h. Make some functions public. Move wid_get_prop_adv() to
  compton.c. The primary code files of the new format src/c2.{c,h} will
  be published when ready.

- Add support for dumping version string in Makefile (make version), to
  make snapshot generation easier.

- Add repeated inclusion protection to common.h.

- Update documentation.

- Use gsed instead of sed in dbus-examples/cdbus-driver.sh if possible,
  as some BSD systems does not come with GNU sed by default. Thanks to
  DaChiChang for reporting.

- Code clean-up. Small type changes in register_cm() to silence
  warnings. Quit on failure in parse_vsync(). Apply stricter checks in
  force_repaint().
2013-01-24 13:38:03 +08:00
Richard Grenville 58c0ecec40 Feature #80: D-Bus support
- Add D-Bus support. Currently 7 methods are available: "reset" (same as
  SIGUSR1), "list_win" (list the windows compton manages), "win_get"
  (get a property of the window), "win_set" (set a property of the
  window), "find_win" (find window based on client window / focus),
  "opts_get" (get the value of a compton option), and "opts_set" (set
  the value of a compton option), together with 4 signals: "win_added",
  "win_destroyed", "win_mapped", "win_unmapped".

- D-Bus support depends on libdbus.

- As there are many items and my time is tight, no much tests are done.
  Bugs to be expected.

- Create a new header file `common.h` that contains shared content.

- Fix some bugs in timeout handling.

- Update file headers in all source files.

- Re-enable --unredir-if-possible on multi-screen set-ups, as the user
  could turn if off manually anyway.

- Check if the window is mapped in `repair_win()`.

- Add ps->track_atom_lst and its handlers, to prepare for the new
  condition format.

- Known issue 1: "win_get", "win_set", "opts_get", "opts_set" support a
  very limited number of targets only. New ones will be added gradually.

- Known issue 2: Accidental drop of D-Bus connection is not handled.

- Known issue 3: Introspection does not reveal all available methods,
  because some methods have unpredictable prototypes. Still hesitating
  about what to do...

- Known issue 4: Error handling is not finished yet. Compton does not
  always reply with the correct error message (but it does print out the
  correct error message, usually).
2013-01-19 20:20:27 +08:00
Richard Grenville e60fe72dcb Bug fix #75: --invert-color-include not working & others
- Fix a small bug that breaks --invert-color-include if no other
  blacklists are present. Thanks to MaskRay and xiaq for reporting.

- Disable --unredir-if-possible for multi-screen setups.

- Fix a bug that causes --no-fading-openclose to have no effect in some
  cases. Add w->in_openclose to keep track of window open/close state.
2013-01-13 13:44:05 +08:00
Richard Grenville 2165c42d27 Feature #75: Invert window color
- Add window color inversion (--invert-color-include). It means 2-3
  times extra painting, so performance issues are likely to appear.  I
  hope I could find a faster way to invert colors.

- Rename some functions.

- Fix update of some window properties after window type/data change.
  Hopefully this will be helpful for #73.

- Split win_build_picture() from win_blur_background().

- Correct memory leak of ps->focus_blacklist during reinitialization.

- Add win_upd_t and win_upd_run(), to reduce duplicate window property
  updates. But is unused right now.

- Limited tests are done overall. Bugs to be expected.
2013-01-12 22:44:46 +08:00
Richard Grenville 57c5854fd0 Improvement: Use select() for main loop
- Back to using select() for main loop. Thus we are not longer relying
  on libevent.

- Add generic timeout system (untested) to prepare for D-Bus support.

- Drop troff man pages. Revise Makefile to improve documentation
  building, fix double LDFLAGS inclusion, and re-add -lrt. This turns
  asciidoc into a build time dependency.

- Change fading time calculation.

- Add --logpath and ostream_reopen() for debugging with -b.

- Drop unused lceil_ntimes() and other helper functions.

- Only very limited tests are done. Bugs to be expected.
2013-01-11 21:31:02 +08:00
Richard Grenville 7188054825 Bug fix #77 incorrect border_width handling & #73 window data issue
- (Hopefully) fix all incorrect handling of w->a.border_width in compton
  (#77). Thanks to baskerville for reporting.

- Attempt to fix #73 by correcting a mistake that window data is fetched
  from the wrong function. Thanks to zakkak.

- Add git commit/tag detection to Makefile for automatic versioning.

- Change -lGL linking order, to fix a segmentation fault caused by
  something in nvidia-drivers under FreeBSD, mentioned in #74. Thanks
  for the report from DachiChang.

- Link to -levent_core instead of -levent in Makefile. We might move to
  libev soon, though.

- Increase SWOPTI_TOLERANCE to handle the extraordinary delay of
  kqueue() under FreeBSD. Thanks for DachiChang's report.

- Add helper function dump_drawable() for debugging.

- Replace XInternAtom() calls with get_atom().

- Remove -lrt as it's unneeded.
2013-01-09 20:41:18 +08:00
Richard Grenville 3521f10a97 Improvement #74: Use libevent for main loop
- Use libevent for main loop. I will explain the reasons in #56 later.
  The preferred libevent version is 2.x, yet 1.4.x should work as well.

- As a result, compton now should build fine on *BSD. Thanks to
  DachiChang for the FreeBSD build issue report.

- Another consequence is we now use microsecond-level timing all the
  way. Nanosecond-level code will be dropped soon. Start using long
  instead of unsigned long to represent time in milliseconds, as both
  can't hold the full epoch time in ms, anyway, and a signed type
  requires less care in subtraction. Wrap the epoch time in ms to 15
  days.

- Fix broken NO_VSYNC_DRM and NO_VSYNC_OPENGL compile-time options.

- Use git revision number for versioning in Makefile, and other small
  improvements.

- Reorganize struct _win. Drop unused w->damaged_sequence. w->damaged is
  turned to bool.

- Add type and format to winprop_t, as preparation for the new condition
  format.

- Add w->shadow_force and w->focus_force, to prepare for D-Bus support.

- Rename wid_get_prop() to wid_get_prop_adv() with more options. Add
  wrapper function wid_get_prop().

- Add some extra helper functions, for D-Bus support later.

- Make some functions return a bool value to indicate if it's
  successful.

- Modify add_win(), use a static const structure to initialize the new
  struct _win.

- Add some helper macros, like printf_err(f)(q). Make some errors fatal.

- Rename some types, constants, and functions. Code clean-up.

- Check for time disorder in paint_preprocess() when calculating fading
  steps.

- Rename evpoll() to swopti_handle_timeout(), and partially rewrite it.

- Make -h / --help legal.

- Known issue: compton segfaults on FreeBSD with nvidia-drivers, unless
  NO_VSYNC_OPENGL is used. Will look into it later. Thamls to DachiChang
  for reporting.
2013-01-08 10:19:19 +08:00
Richard Grenville 1bfe21efb5 Improvement: Dynamic blur strength & improved frame blur performance
- Remove the region expansion design in win_blur_background(). I must be
  sleep-walking when I wrote that!

- Improve performance of blurring when a window is opaque but its frame
  is transparent.

- Adjust blur strength according to window opacity.
  --blur-background-fixed restores the old behavior.

- Add "use_offset" parameter to a few functions for convenience. Code
  clean-up.
2012-12-15 20:07:45 +08:00
Richard Grenville 22cabf7c89 Feature #69: Blur window background
- Add window background blur support (--blur-background &
  --blur-background-frame), with X Render convolution filter.
  The performance sucks. The performance when the window is opaque but
  frame is transparent could be improved, but there are two possible
  ways and I'm hesitating.

- Known issue: The blurring effect looks very ungraceful during fading.
  I could partially fix the problem, but it probably isn't easy to fix
  it completely.
2012-12-14 20:32:46 +08:00
Richard Grenville a77aaf0718 Misc: Code cleanup
- Move some long functions to ./src/compton.c .

- Fix a small potential issue in win_set_focused() when a window with
  neither leader nor client window is focused.

- Add DEBUG_LEADER.
2012-12-12 12:47:17 +08:00
Richard Grenville 848687b853 Feature #65: Auxiliary window detection
- Add auxiliary window detection (--detect-transient &
  --detect-client-leader). Thanks to SmilingHorse for inspiring me. The
  implementation is not too speed-efficient, and bugs are to be
  expected.

- Known issue: auxiliary window detection may not work too well with
  windows that are never mapped, for example as client leader.
2012-12-12 12:01:51 +08:00
Richard Grenville 33171e8933 Feature: Wintype-based focus exclusion
- Add "focus" to the wintypes settings in compton.conf, to mark windows
  of certain window types to be always focused. Replaces the ugly
  is_normal_win().

- Add a ON/OFF/UNSET switch_t type, but it's unused currently.

- Mark client_win if the window client detection hasn't been performed
  when we detect WM_STATE's presence in ev_property_notify(), for
  performance.
2012-12-10 10:38:28 +08:00
Richard Grenville 7d70f3dc13 Bug fix #68: Second attempt to fix client window detection
- Attempt to fix client window detection when WM_STATE property is not
  yet set when the window is mapped. Thanks to kinclma1 for reporting.

- Apply stricter checks for whether window is mapped in
  determine_evmask() and win_mark_client().
2012-12-08 11:10:08 +08:00
Richard Grenville 812ba93516 Bug fix #68: Possible fix for failure in client window detection
- Note I'm not in the best state today (bad cold & sleep-deprived). This
  commit is likely to introduce bugs.

- Attempt to fix client window detection failures happening when compton
  searches for client window before it's ready.

- Fix build failure with <libpcre-8.20. Thanks to @pvanek for reporting
  in #51.

- Move client window detection to a new function win_recheck_client().

- Add win_unmark_client(), which unmarks a client window.

- Rename a few functions.

- Split fetching of values of type-Window properties to a new function
  wid_get_prop_window().

- Add extra safety checks and assert calls to various functions, to
  expose potential bugs.

- Fix a memory leak that w->role is not freed on window destruction.
2012-12-07 23:06:15 +08:00
Richard Grenville a7189263e1 Feature: WM_WINDOW_ROLE matching
- Add support of matching WM_WINDOW_ROLE value. Thanks to Vladimir A.
  Pavlov!

- Thanks to Vladimir A. Pavlov for reporting the issues caused by
  missing client window, fixed in the last commit!

- Fix a memory leak in wid_get_text_prop() and wid_get_name(). Xlib
  documentation did not mention how to free the value XGetTextProperty()
  returns, so my fix could lead to troubles.

- Set focus out in unmap_win(), and add w->leader, to prepare for
  subsidiary window detection.

- Abstract update of a single string window property to
  win_get_prop_str().

- Change wid_get_name() to rely on wid_get_text_prop() as much as
  possible.

- Correct a typo in win_get_prop_str() that could cause unnecessary
  update of shadow state and window focus.
2012-12-05 18:23:35 +08:00
Richard Grenville 983803aa9f Bug fix: Dynamic inactive dim & client window changes
- Make inactive_dim opacity change according to window opacity by
  default, so it looks better when fading. --inactive-dim-fixed restores
  the old behavior.

- Make client window default to the window itself. Add w->wmwin to
  represent whether the window looks like a WM window instead. A side
  effect is, the window type of WM windows are changed from unknown to
  normal, making it necessary to use --mark-wmwin-active to avoid
  considering them unfocused.

- Add check of PointerRoot to recheck_focus() to avoid BadWindow errors
  when the root window is focused.

- Add a few macros to simplify debugging code.

- Add DEBUG_FRAME.
2012-12-05 15:28:37 +08:00
Richard Grenville 72c18b6219 Feature #65: --focus-exclude
- Add --focus-exclude, which should be used with a list of conditions to
  set certain windows to always be considered focused.

- Change focus determination process, with a newly added w->focused_real
  that reflects whether the window is actually focused, while w->focused
  represents whether compton considers it focused. The primary
  difference is now when a window considered focused because of
  --mark-wmwin-focused or --mark-ovredir-focused receives a FocusOut
  event, it's still considered focused by compton.

- Change opacity target and dim state calculation so that it's done at
  most once every paint.

- Split window opacity property fetching from calc_opacity() to a new
  function win_update_opacity_prop().

- Silence a warning in wid_get_prop_wintype().

- Rename a few functions. Code clean-up.

- My time is very limited currently, few tests are done, so this commit
  may very well introduce bugs.

- Known issue: Dim picture opacity does not change based on window
  opacity, causing somehow annoying effects when a window fades off.
2012-11-28 12:07:58 +08:00
Richard Grenville 0f851b17a2 Bug fix: --use-ewmh-active-win causes wrong focus state in Awesome
- Fix a bug that causes wrong focus detection result in Awesome and
  maybe other window managers, when --use-ewmh-active-win is enabled and
  _NET_ACTIVE_WINDOW changes before the newly-focused window is mapped.

- Fix a typo that causes more than one window to stay focused after a
  window destruction with --use-ewmh-active-win.

- Fix a bug that find_clientwin() incorrectly returns a window when
  window ID 0 is passed to it.

- Check for window ID 0 in update_ewmh_active_win().
2012-11-27 08:41:55 +08:00
Richard Grenville 9ca20e7e32 Bug fix: Wrong file path being displayed on config file parsing error
- Fix a bug that causes wrong file path being displayed on configuration
  file parsing error.

- Continue dropping unused parameters and silence clang warnings.

- Add conky shadow exclusion rule to compton.sample.conf.
2012-11-21 09:15:49 +08:00
Richard Grenville e912fcde7b Feature #51: Re-initialize when SIGUSR1 is received
- Create a session_t structure, to get rid of most global variables and
  let information pass in/out mostly through parameters. Huge changes,
  so bugs may very well appear. I'm worried about resource leakages, in
  particular.

- Add gcc attributes on various functions.

- Add Doxygen configuration.

- Replace much Xlib Bool with C99 bool.

- Add and adjust some comments.

- Drop unused parameters from some functions.

- Cache default Visual and Depth, mainly to shorten code.

- Rename some types, variables, and functions.

- Add win_ev_stop() and set_ignore_next() for convenience.

- Modify wid_get_prop_wintype() and wid_get_opacity_prop() to use
  wid_get_prop().

- Rename --respect-attr-shadow to --respect-prop-shadow.

- Fix a memory leak in --respect-prop-shadow.

- Many other small changes.
2012-11-19 11:44:58 +08:00
Richard Grenville a92c2bd808 Misc: Code cleanup
- Form a function ev_window_name() for all window name detection in
  debugging code.

- Add unredir-if-possible to configuration file options.
2012-11-14 21:34:51 +08:00
Richard Grenville aaeafbd19d Bug fix: Client window event mask not restored in map_win()
- Fix a bug that client window event masks are not restored in
  map_win(), causing further property changes to be ignored, for
  example.

- Misc changes.
2012-11-10 11:41:01 +08:00
Richard Grenville 59e54b0665 Feature: Unredirect windows when there's a fullscreen window
- Optionally unredirect windows when there's a fullscreen opaque window on
  the top of the stack (--unredir-if-possible). Experimental. Known
  issues:

  * Screen flickers when redirecting/unredirecting windows.
    --paint-on-overlay seemingly minimizes it (Thanks for hints from
	mutter), but still noticeable.

  * It probably does not play well with vdpau in some cases.

- A debug option DEBUG_REDIR is added.

- Fix a bug that reg_ignore are not expired when a CirculateNotify is
  received.

- Add extra safe guards in some places, which could be bad for
  performance.

- Remove some abundant code.
2012-11-09 22:16:41 +08:00
Richard Grenville e924976b28 Feature #16: _COMPTON_SHADOW window property support
- Add support for reading _COMPTON_SHADOW property from windows
  (--respect-attr-shadow). Presently the only defined behavior is, if
  _COMPTON_SHADOW is set on the highest ancestor below root window of a
  window (usually the WM frame), it's format is 32-bit, type is CADINAL,
  value is 0, the window will not get a shadow. The format and behavior
  could change in the future without prior notification.

- Fix an issue in fork_after() that may cause some streams to remain
  open. My mistake.

- Attempt to reduce determine_shadow() calls from map_win() by
  separating some raw handler functions out.
2012-11-09 11:41:21 +08:00
Richard Grenville 56ce896feb Bug fix: Shape update of opaque windows not handled correctly
- Fix a bug that causes rendering issues if a opaque window changes
  shape.

- Remove abundant handling code in paint_preprocess() when generating
  border_size as border_size() is no longer relying on
  XFixesCreateRegionFromWindow() right now by default.

- Add extra code to print backtrace in DEBUG_ALLOC_REG.

- Move initialization of fade_time closer to first paint.
2012-11-08 19:45:39 +08:00
Richard Grenville 357bf94efc Bug fix: Window rendered incorrectly if has no border with -e
- Fix a bug that window content and some borders are not rendered if the
  window has no border on particular sides when -e (frame-opacity) is
  enabled, introduced in 66d3f30978. Just as what I said in the commit
  message of the commit, "bugs are to be expected". :-S

- Fix a potential segfault in win_match().

- Slightly update CPackConfig.cmake to add dependency to libdrm.
2012-11-06 11:37:29 +08:00
Richard Grenville b15d40ec09 Bug fix #61: Silence a warning
- Silence a FORTIFY_SOURCE warning. Thanks to @smlx for reporting.

- Add -O2 -D_FORTIFY_SOURCE=2 to default CFLAGS in Makefile.

- Use a cleaner way to resolve the writing-to-freed-memory issue
  mentioned in last commit.
2012-11-04 19:44:14 +08:00
Richard Grenville dc04a7d8ca Improvement: Add EWMH _NET_WM_ACTIVE_WINDOW support
- Add support for using _NET_WM_ACTIVE_WINDOW to track focus (rather
  than using FocusIn/Out events) as --use-ewmh-active-win.

- Add wid_get_attr() and use it in place of XGetWindowProperty() in
  various places.

- Remove dpy parameter from find_win() and find_toplevel() as it's unused.

- Fix a writing-to-freed-memory issue in paint_preprocess().
2012-11-04 18:45:39 +08:00
Richard Grenville e734655eef Improvement: Focus detection & --mark-ovredir-focused changes
- Change focus detection to filter FocusIn/Out events in an alternative
  way. Could break things, and may be revoked in the future.

- Change --mark-ovredir-focused's semantics. Now it determines whether a
  window is to be unconditionally focused by checking if its client
  window is the window itself. This resolves a problem in window
  managers that set frame windows to be override-redirected (Fluxbox and
  i3?). Yes, I know it's bad to change semantics in this way.
2012-11-03 22:15:51 +08:00
Richard Grenville 9fb62874c1 Bug fix: A XserverRegion leak
- Fix a XserverRegion leak introduced in b78ab316fd. I hope this is the
  reason of the slowdowns many users reported. Thanks to xrestop!

- Cache the screen region as a variable.

- Add debugging code for region allocation.
2012-11-03 10:38:29 +08:00
Richard Grenville a0b0ff5d0a Misc: Code cleanup & debug code changes
- Merge @daBrado's focus event debugging code. Thanks!

- Use macro to reduce code redundancy in various functions.

- Move focus event validation from ev_focus_out() to a separate
  function.

- Add logic in ev_handle() to increase the chance of successful window
  name detection if compton is not reading window names normally (i.e.
  if there's no --shadow-exclude), when DEBUG_EVENTS is on.
2012-11-03 05:51:40 +08:00
Richard Grenville 66d3f30978 Bug fix #17: Try to fix artifacts after animating/shading shaped wins in Openbox
- Correct design mistakes in win_get_region_noframe(). I must be
  sleepwalking when I wrote that thing!

- Intersect border_size with window region rectangle because Openbox is
  offering wrong window shapes larger than the window rectangle for shaped
  windows. Shame on you, Openbox.

- Change logic in reg_ignore calculation as border_size is now
  intersected with window rectangle and we don't need to do this here
  again.

- Rewrite window painting with frame opacity part in win_paint_win() to
  deal with absurd frame widths WM offers. Again, Openbox, this is your
  fault.

- As I'm in a pretty bad state (continuously working on compton for 10+
  hours without rest...), all these changes are not well tested, and
  bugs are to be expected.
2012-11-01 19:12:55 +08:00
Richard Grenville fb2ca16cb8 Improvement: border_size & ConfigureNotify & VSync changes
- Run XSync() before the final paint to catch VBlank better. Stolen from
  Xfwm4 VSync patch.

- Add --vsync-aggressive that sends out the final painting request
  earlier, simulating xfwm4 VSync patch. But this thing does have the
  possibility of breaking VSync, I think...

- Change handling of ConfigureNotify to avoid freeing w->extents and
  w->border_size if possible.

- Change logic in paint_prepreprocess() to use win_get_region() for
  border_size generation instead of border_size() if the window is not
  shaped to try to avoid some BadRegion error messages when a window
  loses its border_size then is unmapped, about which Adys complained in
  #25.

- Detect if w->border_size is None before using it in various places.
  Practically the effect is pretty limited because
  XFixesCreateRegionFromWindow() usually returns an invalid X ID instead
  of None on error.

- Fix a bug that rounded corner detection could fail if the window size
  is changed by a ConfigureNotify immediately.
2012-11-01 11:44:38 +08:00
Richard Grenville 35c9e44de2 Improvement: Try to reduce reg_ignore regenerations
- Try to reduce regenerations of reg_ignore. Highly experimental and
  could lead to very obscure bugs. More testing needed.

- Introduce to_paint in struct _win to keep track of whether this window
  was painted last time.

- Drop CAN_DO_USABLE support. Its usage looks pretty limited.

- Fix a bug that possibly causes rendering issues on frame width changes
  if frame_opacity is enabled.

- Detect other borders (instead of only top border) when determining
  frame opacity.

- Change the type of w->mode from int to an enumeration type.

- Ignore ShapeNotify if the window is not mapped, to avoid loss of
  w->border_size in some cases, which breaks the fading out process of
  shaped windows.

- Stop rendering a window if its picture is lost and it's unmapped, to
  avoid a series of X errors and possible rendering problems.
2012-10-31 10:08:48 +08:00
Richard Grenville 56e181309e Misc: Small adjustments
- Minor change of code in configure_win() for a slight performance boost
  in some cases.

- Discovered there are a lot of X errors that I basically cannot fix, caused by
  the asynchronous nature of Xlib...

- Correct the position of the timestamps in DEBUG_REPAINT. This might
  have negative effects for debugging X errors, though.
2012-10-30 18:37:49 +08:00
Richard Grenville 853d20ef56 Bug fix: Fading blocks in rare circumstances
- In very rare circumstances, poll() to the X connection returns 1 but
  no events are read out, causing XNextEvent() in the main loop to wait
  infinitely until another event comes, typically affecting fading
  process only, causing fading to appear somehow stopped. This commit
  adds a (possible) fix.

- Listen to Expose events of the X Composite overlay window if we are
  painting to it, to avoid making some parts of the screen blank when
  switching out of X screen in --paint-on-overlay mode.

- Drop "fade_fin" member of struct _win, because it's pretty useless.

- Drop unused "root" parameter of expose_root(), move get_time_ms() to
  compton.h, etc.
2012-10-29 22:00:11 +08:00
Richard Grenville 9b61999cae Merge branch 'master' into richardgv-dev
Merged the documentation changes. Program code unchanged.
2012-10-29 09:58:16 +08:00
Richard Grenville 40178702ef Improvement: Change clear_shadow implementation
- Implement clear_shadow with painting region limitation instead of
  calculation in shadow image, to make it work correctly on windows with
  rounded corners, requested by funeral1988. This might cause more load
  on CPU, but could mean less load for GPU. The original implementation
  is kept but commented out.

- Code cleanup.
2012-10-28 17:02:07 +08:00
Richard Grenville f83ed19e14 Bug fix #57: Fix incorrect handling of InputOnly windows
- Stop rendering InputOnly windows. In the past I've misunderstood the
  whole thing, I guess, sorry. Thanks to garfilth and funeral1988 for
  reporting and providing valuable information.

- Fix a possible segfault in DDEBUG_EVENTS.

- Add "dbe" as a configuration file option.

- Attempt to slightly reduce the rendering delay after VSync in non-DBE
  mode. I don't think, however, that this would be greatly helpful for
  the tearing issue.
2012-10-27 21:52:26 +08:00
Richard Grenville 66e615775b Bug fix #7: Correct a possible issue in VSync
- I realized I might have fundamentally misunderstood VSync. This commit
  tries to fix the possible problem, or at least move the tearing line
  close to the top of the screen.

- Software VSync is replaced by --sw-opti (software optimization), as
  I guess it isn't possible at all to do VSync without driver support.

- Add "vsync" and "sw-opti" as configuration file options.
2012-10-26 11:28:38 +08:00
Richard Grenville 049621bed7 Improvement: Add painting on overlay support
- Add support for painting on X Composite overlay window instead of root
  window (--paint-on-overlay). I intended to use this to fix the
  conflict between conky (own-window off) and compton, but it's
  unsuccessful. Will have to ask somebody to figure out how to solve
  this problem.

- Rename a few variables to avoid confusion.

- Slightly change how root window content (wallpaper) change is
  detected.

- Slightly improve window name detection in DEBUG_EVENTS.
2012-10-24 10:23:26 +08:00
Richard Grenville 5dd544d29d Improvement #7: Add double buffering
Add double buffering with X DBE extension in hope to get rid of the
tearing issue. Thanks to cairo-compmgr for providing hints. Could be
enabled with --dbe. Only very limited tests have been done, I don't know
if it actually solves the tearing issue. My estimation is it is harmful
for performance, but I found no clear evidence. Experimental, so no
configuration file option is available for it.

MONITOR_REPAINT is broken if --dbe is turned on, this is intended for
testing whether DBE is actually working.
2012-10-23 13:42:20 +08:00
Christopher Jeffrey 1ce58afb1d more man page changes 2012-10-22 12:02:08 -05:00
Christopher Jeffrey 7e1a7ee120 fix man page and various other documentation. 2012-10-22 08:20:43 -05:00
Christopher Jeffrey 7ace6ca68d revert to c7ca345 2012-10-22 06:35:02 -05:00
Christopher Jeffrey b0766e09b6 v0.0.1 2012-10-22 03:04:19 -05:00
Richard Grenville fe2146f1a5 Misc: Drop support for old versions of libXcomposite
Basically dropping support for HAS_NAME_PIXMAP = 0 because I don't think
there are many people using it, and I cannot maintain it. CAN_DO_USABLE
support is under evaluation.
2012-10-22 08:16:52 +08:00
Richard Grenville 6a95d49a87 Bug fix #55: Workaround for window type detection on Openbox menus
A small workaround for a small problem.
2012-10-21 21:21:38 +08:00
Richard Grenville b78ab316fd Improvement: Stop painting on regions of higher windows
Sort of reverts cdf7db750d, but implements in a different way. (Well,
maybe the pre-cdf7db750d way is actually better, if I'm willing to
sacrifice some precious code reusability.) Basically, trading CPU for
GPU, in an attempt to solve farseerfc and ichi-no-eda's problems. Highly
experimental, could be revoked at any moment.
2012-10-21 20:49:34 +08:00
Richard Grenville 07e4420ab4 Improvement: Pregenerate alpha pictures
Pregenerate alpha pictures to save time when painting. Add --alpha-step
to control the step of alpha picture generation (the opacity difference
between two consecutively generated alpha pictures).
2012-10-13 19:11:25 +08:00
Richard Grenville 72ea4b5f47 Misc: Code clean-up
- Fix a memory leak in register_cm().

- Print a warning message if argument of --vsync is invalid.

- Known bug: compton will probably freeze X if another compositing
  window manager is running and --vsync opengl is enabled, with
  nvidia-drivers-304.51. Probably an issue on the driver. I could see no
  workaround.
2012-10-10 21:17:48 +08:00
Richard Grenville b59e592588 Feature: #7: VSync
- Add VSync feature. 3 possible VSync methods available: "sw" (software,
  not too reliable, but at least you have something to fallback to),
  "drm" (using DRM_IOCTL_WAIT_VBLANK, should work only on DRI drivers),
  "opengl" (using SGI_swap_control extension OpenGL, might work on more
  drivers than the DRM method). "sw" and "opengl" are briefly tested,
  "drm" received utterly no test (because I use the nVidia binary blob).
  They are enabled with "--vsync sw" / "--vsync drm" / "--vsync opengl".

- Add --refresh-rate to let user specify a refresh rate for software
  VSync, in case the automatic refresh rate detection does not work
  well.

- Seemingly the automatic refresh rate detection using X RandR in
  software VSync detects refresh rate incorrectly. Need further investigation.

- Fix a few bugs in fading timing.

- Add a workaround for client window detection on Fluxbox, as Fluxbox
  (incorrectly?) sets the override-redirect flag upon all frame
  windows.

- Software VSync adds dependency on librt (a part of glibc) for
  nanosecond-level timing functions, and libXrandr for automatic refresh
  rate detection; DRM VSync adds dependency on libdrm to use its drm.h,
  but does not link to libdrm; OpenGL VSync adds dependency on libGL.

- Print timing information on DEBUG_REPAINT.
2012-10-08 10:36:28 +08:00
Richard Grenville 1306b1591f Improvement: Support reading _NET_WM_OPACITY from client windows
- Some WMs don't respect Keith Packard's proposal of
  _NET_WM_WINDOW_OPACITY, and do not copy _NET_WM_OPACITY attribute of a
  client window to its frame windows, thus cause opacity set by
  non-override-redirect windows to have no effect. This commit adds
  support for reading _NET_WM_OPACITY from client windows if running
  with --detect-client-opacity. Thanks to pvanek for reporting.

- Change Makefile logic to determine options from 3 variables
  (NO_LIBCONFIG, NO_REGEX_PCRE, NO_REGEX_PCRE_JIT) instead of CFG to
  ensure compatibility when we add new options. CFG variable is no
  longer been respected.
2012-10-03 21:21:43 +08:00
Richard Grenville f95093358e Improvement: Change in client window lookup & wintype detection
- Revert to WM_STATE for client window lookup, as WM_CLASS is
  unreliable, either, but set the client window of an override-redirect
  window to itself.

- Conform to EWMH to make assumptions about window types when
  _NET_WM_WINDOW_TYPE is not available.

- Remove determine_wintype() and completely rely on client window for
  window type detection.
2012-10-02 21:46:37 +08:00
Christopher Jeffrey c7ca3454ee Merge branch 'richardgv-dev' 2012-09-30 22:57:46 -05:00
Richard Grenville 2f0417cd74 Feature: #27: Detect shaped windows and disable shadow on them
- Optionally detect shaped windows using X Shape extension and disable
  shadow on them with --shadow-ignore-shaped.

- Some windows are bounding-shaped just to support rounded corners, like
  Chromium windows (when system titlebar is disabled in its settings).
  Add --detect-rounded-corners to treat them as non-shaped windows (thus
  enable shadow on them). The algorithm I use is not perfect and wrong
  detection results are pretty possible to appear.

- Many windows don't use X Shape extensions to add shapes but use ARGB
  background instead. These windows could only be blacklisted with
  --shadow-blacklist.

- Rename a few functions. Code clean up.
2012-10-01 10:41:51 +08:00
Richard Grenville 8d7d6405b6 Improvement: Wait infinitely for events when idling
Wait infinitely for events when idling, instead of always calling
paint_preprocess(), to reduce CPU usage in the case. Thanks to valr for
help.
2012-09-29 22:53:57 +08:00
Richard Grenville 5a3dfbc064 Improvement: Split shadow_pict to shadow_pict & shadow_alpha_pict
Split w->shadow_pict to w->shadow_pict and w->shadow_alpha_pict, so that
the whole w->shadow_pict need not to be rebuild on shadow opacity
change. This greatly reduces CPU usage of compton when a window with
shadow is fading. (My test shows the CPU usage of compton process
dropped from 1.15% to 0.35% when constantly fading in and out a window.)
It uses a rather painful and slow method in shadow_picture() to get
around the limitation of PictStandardA8 to make colored shadows work. I
wonder if there's a better approach.

- Merge variables gsize and cgsize as they seemingly represent the same
  thing.
2012-09-29 13:21:39 +08:00
Christopher Jeffrey 7c1838cfd8 Merge commit '69513d6'
Conflicts:
	src/compton.c
	src/compton.h
2012-09-28 12:22:25 -05:00
Richard Grenville 9139d038c2 Bug fix: #48: Compilation failure with old libconfig/libpcre
- Fix compilation failure with <libpcre-8.20 and <libconfig-1.4. Tested
  with libpcre-8.12 and libconfig-1.3.2, but not extensively tested.
  libconfig-1.3* probably has more limitations on configuration file
  syntax (enforces comma at the end of a setting?) and does not support
  @include.

- Make it possible to turn off PCRE and libconfig support using
  environment variable "CFG". Not well tested. CMake might provide a
  better solution.
2012-09-28 09:19:53 +08:00
Richard Grenville 69513d6231 Bug fix: Issue #47: Locale cause problems with float arguments
A locale using comma instead of dot in floating point values causes
unexpected behavior when parsing floating point commandline arguments.
This commits enforces LC_NUMERIC="C" during commandline argument parsing.
2012-09-27 22:30:16 +08:00
Richard Grenville 75ebe94bb6 Feature: --no-fading-openclose to partially simulate -F
-F hasn't being working for long. This commit adds a switch
--no-fading-openclose (and a configuration file option of the same name)
to simulate the behavior when only -F is enabled, which disables fading
when opening/closing windows, and makes -F an alias for -f.
2012-09-26 21:47:32 +08:00
Richard Grenville 8c0379180b Bug fix: Issue #46: Optionally mark override-redirect windows as active
Attempt to fix the transparency issue of Firefox and Chromium location
bar dropdown window by marking override_redirect windows as active. This
may not work completely and could have other side effects. Experimental.
Enable by using --mark-ovredir-focused.
2012-09-26 19:48:36 +08:00
Richard Grenville 606e2d7061 Misc: Code clean-up
- Change some members of options_t. Clean up wrongly replaced option
  names in comments. Rename "options" to "opts", to avoid breaking line
  width too much, and to minimize typing as it's so frequently used.
  :-)

- Let general options in commandline arguments override wintype-specific
  options in a configuration file, which could be a more natural
  behavior.
2012-09-26 18:54:35 +08:00
Christopher Jeffrey bccda565a2 initialize fade_time just to be explicit. 2012-09-26 03:18:10 -05:00
Christopher Jeffrey e4e1ed092f remove fade_time from options struct. 2012-09-26 02:38:51 -05:00
Christopher Jeffrey 93c82a84ef add global options struct. 2012-09-25 20:56:02 -05:00
Richard Grenville 564e55e22c Feature: Wintype-specific options in configuration files
- Add support of window-type-specific options (fade, shadow, and
  opacity) in configuration file parsing. Syntax shown in
  compton.sample.conf.

- Replace wintype_name() with an array of window type names. Code
  clean-up.
2012-09-25 21:08:54 +08:00
Richard Grenville ee9e90efec Feature: Configuration file parsing
- Add support for parsing configuration files using libconfig.
  (Dependency on libconfig could be made optional once we get some
  better building system.) Few tests has been done, bugs to be expected.
  compton searches for a configuration file mostly according to the XDG
  standard. Firstly the configuration file requested by --config, then
  $XDG_CONFIG_HOME/compton.conf (~/.config/compton.conf, usually), then
  ~/.compton.conf, then compton.conf under $XDG_DATA_DIRS (often
  /etc/xdg/compton.conf). A sample configuration file is supplied as
  compton.sample.conf. Configuration file syntax may change in the
  future.  Commandline switches has higher priority than configuration
  file, except for --shadow-exclude. Use --config /dev/null to
  temporarily disable configuration file.

- Fix a bug that causes windows to disappear or be partially rendered on
  opacity changes.

- Fix a bug that causes some windows to ignore -i (inactive_opacity) and
  --inactive-dim, caused by the default window type change in
  a5d9955ca4.
2012-09-25 10:32:41 +08:00
Richard Grenville ce51d564d5 Misc: Fix two memory leaks
- Fix two small memory leaks. valgrind detects another memory leak
  possibly caused by XGetTextProperty(), probably a bug in libX11, I
  couldn't fix that one.

- Use predefined atoms in Xatom.h to replace a few XInternAtom() calls.
2012-09-23 11:49:02 +08:00
Richard Grenville a5d9955ca4 Improvement: Change window type detection
- Let window type detection start with the client window if there's one,
  in hope to enhance performance.

- Change get_wintype_prop() to fetch the property only once.

- Default to WINTYPE_UNKNOWN instead of WINTYPE_NORMAL if
  _NET_WM_WINDOW_TYPE is missing.

- Fix a mistake in calc_opacity().

- Add some items to .gitignore.

- Fix a typo in usage().
2012-09-22 20:59:26 +08:00
Richard Grenville 0d6724385e Feature: Issue #29: Alternative shadow blacklist implementation
- Add shadow blacklist feature, but a different implementation from
  nicklan's. 5 matching modes (exact, starts-with, contains, wildcard,
  PCRE) and 3 matching targets (window name, window class instance,
  window general class). Not extensively tested, bugs to be expected.
  It's slower for exact matching than nicklan's as it uses linear search
  instead of hash table. Also, PCRE's JIT optimization may cause issues
  on PaX kernels.

- Add dependency to libpcre. Could be made optional if we have a
  graceful way to handle that in Makefile.

- Some matching functions are GNU extensions of glibc. So this version
  may have troubles running on platforms not using glibc.

- Fix a bug that access freed memory blocks in set_fade_callcack() and
  check_fade_fin(). valgrind found it out.

- Use WM_CLASS to detect client windows instead of WM_STATE. Some client
  windows (like notification windows) have WM_CLASS but not WM_STATE.

- Mark the extents as damaged if shadow state changed in
  determine_shadow().

- Rewrite wid_get_name(). Code clean-up.

- Two debugging options: DEBUG_WINDATA and DEBUG_WINMATCH.

- As the matching system is ready, it should be rather easy to add other
  kinds of blacklists, like fading blacklist.
2012-09-22 11:42:39 +08:00
Richard Grenville 8724101c0a Bug fix: Detect and mark WM windows as active
See chjj's comments on issue #39:
https://github.com/chjj/compton/issues/39#issuecomment-8533360

- Add a switch --mark-wmwin-focused that try to detect WM windows and
  mark them active.

- Fix a bug that causes BadDrawable, etc. if a window is mapped then
  immediately unmapped.

- Fix a bug in determine_evmask().

- Add a debug option DEBUG_CLIENTWIN.

- Force window repaint on window frame extent change.

- Code cleanup.
2012-09-20 14:11:50 +08:00
Richard Grenville 778a8b177c Improvement: Change fading mechanism
- Change fading mechanism for better modularity. Remove fade queue and
  use members in struct _win to record fading data. In contrast to
  previous commits, this one actually could make the program slower (but
  very slightly, hardly noticeable if your CPU is anywhere close to AMD
  K7). As this commit changes lots of things, bugs are to be expected.

- Currently -F does not do its job. -f actually equals -fF. (While in
  the past -F equals nothing and -f is just -f.) A fix will be made
  soon. I suppose it isn't hard.

- Add a preprocessor function paint_preprocess() and move all
  preprocessing code in paint_all() to it.

- Add window flag support but currently unused.

- Add DamageNotify handling to ev_window().

- I'm considering removing HAS_NAME_WINDOW_PIXMAP = 0 support as I
  couldn't see what it is good for. Nor do I know what CAN_DO_USABLE
  does. Basically all my changes ignore these cases.
2012-09-19 21:14:28 +08:00
Richard Grenville e7da88890d Bug fix: Issue #23, notify-osd not rendered
More details in the issue report.

- Add ClientMessage detection to ev_name() and ev_window(), although we
  don't actually handle the event.
2012-09-18 11:28:09 +08:00
Richard Grenville 1437e406c7 Improvement: Defer shadow picture generation
- Defer shadow picture generation to minimize interactions with X,
  hoping to boost performance.

- Fix a rendering issue caused by clip_changed in configure_win().
  Remove clip_changed altogether.

- Split generation of shadow picture from calculating its geometry.

- Cache width/height including borders in struct _win as it's frequently
  used.
2012-09-17 22:15:04 +08:00
Richard Grenville cdf7db750d Improvement: Change painting sequence
- Now compton paints windows from the lowest to the highest.  Warning:
  I'm not completely certain that the change won't introduce unexpected
  glitches. This commit may be revoked in the future.

- Remove w->border_clip since it's no longer needed.

- Correct a mistake in find_toplevel2(). (clang --analyze found it out.)

- Change "func_name()" prototypes to "func_name(void)". If I remember
  correctly, "func_name()" means you are remaining silent about this
  function's parameters instead of stating it has no parameter in ANSI
  C.

- Add timestamps to error messages.

- Suppress error messages caused by free_damage().
2012-09-17 16:04:04 +08:00
Richard Grenville dfde67255f Improvement: Change generating process of alpha_pict, etc.
- Change how w->alpha_pict is generated, in hope to boost performance,
  slightly, and as a step to eventually move handling code of most resources
  used when painting to paint_preprocess().

- Remove alpha_pict parameter of shadow_picture() as it's not
  necessary.

- Let window opacity affect frame opacity.

- Rename some members of struct _win.
2012-09-17 12:41:41 +08:00
Richard Grenville 64d53f6534 Misc: Clean up
- Add 4 helper free functions that free XserverRegion, Damage, Picture,
  and Pixmap.

- Rename w->shadow to w->shadow_pict. Add a bool member w->shadow to
  prepare for a future change.
2012-09-16 23:17:34 +08:00
Richard Grenville 4293a4626a Bug fix: Issue #43, better client window lookup
More details on the issue report.

- Look up the client window of a WM frame when it's mapped instead of when
  it's created, for better reliability.

- Fix a warning when building.
2012-09-14 11:51:46 +08:00
Christopher Jeffrey 0d4c6fc5cc fix code duplication resulting from rebase 2012-09-13 10:28:27 -05:00
Christopher Jeffrey e2c14ee545 fix determine_evmask warnings 2012-09-13 10:24:37 -05:00
Christopher Jeffrey 0064894bf6 more style changes 2012-09-13 10:24:14 -05:00
Christopher Jeffrey 5bcbf87f32 stay consistent with code style 2012-09-13 10:00:57 -05:00
Christopher Jeffrey 5112f91c48 whitespace 2012-09-13 09:59:50 -05:00
Richard Grenville 271d894eae Bug fix: Segfault when meeting FocusIn/Out from destoryed windows
I found compton segfaults sometimes when starting from .xinitrc.
Debugging reveals my conky window was just reparented to a fvwm's
frame window before compton picked up a FocusOut event on this conky
window that has just been destroyed in the event queue. find_win()
call in ev_focus_in/out() returned a NULL pointer. When it tried to
use the pointer segfault happens.

- Add extra check to ev_focus_in/out() to stop the segfault.

- Reset window event mask on window reparenting to a non-root window to
  minimize wrong events.

- More abstraction for determining window event mask.
2012-09-13 22:30:18 +08:00
Richard Grenville 18b3a96d0b Improvement: Use find_toplevel() to find WM frame
Use find_toplevel() to find out the WM frame of a client window. I
didn't noticed it beforehand. Fallback to the old method as compton does
not always get correct client windows.

- Clean up find_client_win() a bit. A BFS search algorithm could be more
  optimal yet it requires a queue implementation.
2012-09-13 21:38:55 +08:00
Richard Grenville d0399313fc Improvement: Do not track focus changes unless necessary
Stop tracking focus changes unless either inactive_opacity or
inactive_dim is enabled, small performance boost in certain cases.
2012-09-13 11:47:31 +08:00
Richard Grenville 3abeb58690 Bug fix: Issue #40: -z does not work as expected
More information in the issue report.

- Let window opacity affect the opacity of its shadow and frames even if
  -z is enabled.

- Check for the range of -o to eliminate potential segfault.
2012-09-12 21:01:06 +08:00
Richard Grenville 6f079af2f0 Bug fix: Double free when XQueryTree() fails
Take care of failure of XQueryTree() to prevent it from causing a
double-free crash. This usually happens when X is initializing and windows
are constantly changing.
2012-09-12 12:14:24 +08:00
Richard Grenville 35f7d45130 Bug fix: Issue #39: Render windows just mapped && focused incorrectly
More info in the issue description. This also fixes the problem for
--inactive-dim.
2012-09-12 11:06:16 +08:00
Richard Grenville e9cfa49c86 Feature: Issue #2: Support dim inactive windows
- Add a switch --inactive-dim that dims inactive windows.

- The window dimming feature is implemented in a pretty ugly way.
  Improve it if possible.
2012-09-12 10:52:52 +08:00
Richard Grenville f280750a03 Debug: Enhanced debugging capability
- Change all #if DEBUG_XXX directives to #ifdef, thus making it
  possible to directly enable debugging options with CFLAGS
  (-DDEBUG_XXX).

- Print timestamp before event debugging messages.
2012-09-12 09:08:15 +08:00
Richard Grenville c905c882b4 Bug fix: Segfault when encountering invalid long option
I didn't read the documentation of getopt_long() carefully.
2012-09-11 23:11:23 +08:00
Richard Grenville 129115171a Bug fix: Issue #37, fix 5 opacity-related bugs
More details in the bug report.

- Rewritten much of the opacity calculation, code cleanup.

- Commandline switch --inactive_opacity_override to restore the old
  behavior in which inactive_opacity has higher priority than
  _NET_WM_OPACITY.
2012-09-11 22:22:58 +08:00
Richard Grenville deaaf5c5cf Feature: Issue #35, Add colored shadows
- Use getopt_long() instead of getopt() for argument parsing, making
  long options possible.

- Add support of colored shadows with 3 commandline switches.
2012-09-11 21:57:50 +08:00
Richard Grenville f5aed89a67 Bug fix: Issue #36: Chromium window painting problems
More descriptions on issue #36.

- Listens ShapeNotify event to get around the Chromium window painting
  issues.

- Adds dependency on X Shape extension.

- Adds a few functions for convenience, so a bit code clean up.

- Better event debug support, adds restack_win() debug.
2012-09-11 21:33:03 +08:00
Richard Grenville 8628371a83 Bug fix: Issue #38, fixes painting specially-shaped semi-transparent windows
Fix taken from xcompmgr.
2012-09-11 21:11:06 +08:00
Christopher Jeffrey eb3b13145d avoid allocating a new win struct if possible 2012-09-08 21:13:56 -05:00
Christopher Jeffrey 02e2deea54 add richardgv's patch. see #31. 2012-09-08 21:04:44 -05:00
Christopher Jeffrey 94efff0bb2 apply patch from richardgv. fixes #5. 2012-09-07 11:51:08 -05:00
Christopher Jeffrey f358eb5962 rename, refactor again. 2012-06-03 12:35:33 -05:00
Christopher Jeffrey 3dfaea3698 refactor, rename 2012-06-03 11:08:50 -05:00
Tim van Dalen 1584805ea7 Fixed a (very) small 'bug' in the usage text, -f wasn't printed on a new line. 2012-03-17 19:01:28 +01:00
Christopher Jeffrey 674ac5b6cd stop listening for property events on client window after unmap 2012-02-28 01:52:41 -06:00
Christopher Jeffrey b01cfea5c6 minor changes 2012-02-27 10:41:12 -06:00
Christopher Jeffrey 8f4eafaf79 reorganize tree 2012-02-27 05:22:33 -06:00