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* Bug fix #84: Root window not repainted sometimes on wallpaper changeRichard Grenville2013-01-241-34/+89
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - 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().
* Feature #80: D-Bus supportRichard Grenville2013-01-191-14/+141
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - 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).
* Bug fix #75: --invert-color-include not working & othersRichard Grenville2013-01-131-12/+22
| | | | | | | | | | - 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.
* Feature #75: Invert window colorRichard Grenville2013-01-121-49/+183
| | | | | | | | | | | | | | | | | | | | - 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.
* Improvement: Use select() for main loopRichard Grenville2013-01-111-110/+251
| | | | | | | | | | | | | | | | | | | - 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.
* Bug fix #77 incorrect border_width handling & #73 window data issueRichard Grenville2013-01-091-55/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | - (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.
* Improvement #74: Use libevent for main loopRichard Grenville2013-01-081-198/+321
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - 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.
* Improvement: Dynamic blur strength & improved frame blur performanceRichard Grenville2012-12-151-37/+62
| | | | | | | | | | | | | | - 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.
* Feature #69: Blur window backgroundRichard Grenville2012-12-141-2/+126
| | | | | | | | | | | | - 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.
* Misc: Code cleanupRichard Grenville2012-12-121-10/+74
| | | | | | | | | - 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.
* Feature #65: Auxiliary window detectionRichard Grenville2012-12-121-41/+135
| | | | | | | | | | - 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.
* Feature: Wintype-based focus exclusionRichard Grenville2012-12-101-3/+13
| | | | | | | | | | | | - 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.
* Bug fix #68: Second attempt to fix client window detectionRichard Grenville2012-12-081-4/+16
| | | | | | | | - 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().
* Bug fix #68: Possible fix for failure in client window detectionRichard Grenville2012-12-071-51/+152
| | | | | | | | | | | | | | | | | | | | | | | | | - 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.
* Feature: WM_WINDOW_ROLE matchingRichard Grenville2012-12-051-47/+72
| | | | | | | | | | | | | | | | | | | | | | | | - 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.
* Bug fix: Dynamic inactive dim & client window changesRichard Grenville2012-12-051-32/+66
| | | | | | | | | | | | | | | | | | | - 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.
* Feature #65: --focus-excludeRichard Grenville2012-11-281-83/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - 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.
* Bug fix: --use-ewmh-active-win causes wrong focus state in AwesomeRichard Grenville2012-11-271-2/+11
| | | | | | | | | | | | | | - 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().
* Bug fix: Wrong file path being displayed on config file parsing errorRichard Grenville2012-11-211-28/+36
| | | | | | | | | - 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.
* Feature #51: Re-initialize when SIGUSR1 is receivedRichard Grenville2012-11-191-1371/+1561
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - 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.
* Misc: Code cleanupRichard Grenville2012-11-141-32/+43
| | | | | | | - Form a function ev_window_name() for all window name detection in debugging code. - Add unredir-if-possible to configuration file options.
* Bug fix: Client window event mask not restored in map_win()Richard Grenville2012-11-101-4/+3
| | | | | | | | - 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.
* Feature: Unredirect windows when there's a fullscreen windowRichard Grenville2012-11-091-26/+132
| | | | | | | | | | | | | | | | | | | | | | - 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.
* Feature #16: _COMPTON_SHADOW window property supportRichard Grenville2012-11-091-10/+80
| | | | | | | | | | | | | | | - 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.
* Bug fix: Shape update of opaque windows not handled correctlyRichard Grenville2012-11-081-11/+5
| | | | | | | | | | | | | - 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.
* Bug fix: Window rendered incorrectly if has no border with -eRichard Grenville2012-11-061-27/+27
| | | | | | | | | | | - 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.
* Bug fix #61: Silence a warningRichard Grenville2012-11-041-12/+12
| | | | | | | | | - 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.
* Improvement: Add EWMH _NET_WM_ACTIVE_WINDOW supportRichard Grenville2012-11-041-92/+146
| | | | | | | | | | | | - 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().
* Improvement: Focus detection & --mark-ovredir-focused changesRichard Grenville2012-11-031-6/+11
| | | | | | | | | | | - 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.
* Bug fix: A XserverRegion leakRichard Grenville2012-11-031-1/+18
| | | | | | | | | - 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.
* Misc: Code cleanup & debug code changesRichard Grenville2012-11-031-114/+105
| | | | | | | | | | | | | - 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.
* Bug fix #17: Try to fix artifacts after animating/shading shaped wins in OpenboxRichard Grenville2012-11-011-51/+94
| | | | | | | | | | | | | | | | | | | | | - 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.
* Improvement: border_size & ConfigureNotify & VSync changesRichard Grenville2012-11-011-14/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | - 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.
* Improvement: Try to reduce reg_ignore regenerationsRichard Grenville2012-10-311-168/+128
| | | | | | | | | | | | | | | | | | | | | | | | | - 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.
* Misc: Small adjustmentsRichard Grenville2012-10-301-24/+19
| | | | | | | | | | | - 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.
* Bug fix: Fading blocks in rare circumstancesRichard Grenville2012-10-291-33/+19
| | | | | | | | | | | | | | | | | - 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.
* Merge branch 'master' into richardgv-devRichard Grenville2012-10-291-1/+1
|\ | | | | | | Merged the documentation changes. Program code unchanged.
| * more man page changesChristopher Jeffrey2012-10-221-1/+1
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| * fix man page and various other documentation.Christopher Jeffrey2012-10-221-1/+1
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| * revert to c7ca345Christopher Jeffrey2012-10-221-858/+200
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| * v0.0.1Christopher Jeffrey2012-10-221-4/+4
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* | Improvement: Change clear_shadow implementationRichard Grenville2012-10-281-22/+44
| | | | | | | | | | | | | | | | | | | | - 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.
* | Bug fix #57: Fix incorrect handling of InputOnly windowsRichard Grenville2012-10-271-3/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - 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.
* | Bug fix #7: Correct a possible issue in VSyncRichard Grenville2012-10-261-105/+109
| | | | | | | | | | | | | | | | | | | | | | - 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.
* | Improvement: Add painting on overlay supportRichard Grenville2012-10-241-49/+143
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - 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.
* | Improvement #7: Add double bufferingRichard Grenville2012-10-231-10/+79
|/ | | | | | | | | | | | 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.
* Misc: Drop support for old versions of libXcompositeRichard Grenville2012-10-221-21/+0
| | | | | | 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.
* Bug fix #55: Workaround for window type detection on Openbox menusRichard Grenville2012-10-211-0/+5
| | | | A small workaround for a small problem.
* Improvement: Stop painting on regions of higher windowsRichard Grenville2012-10-211-79/+242
| | | | | | | | 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.
* Improvement: Pregenerate alpha picturesRichard Grenville2012-10-131-31/+48
| | | | | | 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).
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