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5c7d8ab1ad
st could easily tear/flicker with animation or other unattended output. This commit eliminates most of the tear/flicker. Before this commit, the display timing had two "modes": - Interactively, st was waiting fixed `1000/xfps` ms after forwarding the kb/mouse event to the application and before drawing. - Unattended, and specifically with animations, the draw frequency was throttled to `actionfps`. Animation at a higher rate would throttle and likely tear, and at lower rates it was tearing big frames (specifically, when one `read` didn't get a full "frame"). The interactive behavior was decent, but it was impossible to get good unattended-draw behavior even with carefully chosen configuration. This commit changes the behavior such that it draws on idle instead of using fixed latency/frequency. This means that it tries to draw only when it's very likely that the application has completed its output (or after some duration without idle), so it mostly succeeds to avoid tear, flicker, and partial drawing. The config values minlatency/maxlatency replace xfps/actionfps and define the range which the algorithm is allowed to wait from the initial draw-trigger until the actual draw. The range enables the flexibility to choose when to draw - when least likely to flicker. It also unifies the interactive and unattended behavior and config values, which makes the code simpler as well - without sacrificing latency during interactive use, because typically interactively idle arrives very quickly, so the wait is typically minlatency. While it only slighly improves interactive behavior, for animations and other unattended-drawing it improves greatly, as it effectively adapts to any [animation] output rate without tearing, throttling, redundant drawing, or unnecessary delays (sounds impossible, but it works).
207 lines
7.4 KiB
C
207 lines
7.4 KiB
C
/*
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* This file contains patch control flags.
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*
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* In principle you should be able to mix and match any patches
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* you may want. In cases where patches are logically incompatible
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* one patch may take precedence over the other as noted in the
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* relevant descriptions.
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*/
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/* Patches */
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/* The alpha patch adds transparency for the terminal.
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* https://st.suckless.org/patches/alpha/
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*/
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#define ALPHA_PATCH 0
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/* This patch allows st to reize to any pixel size rather than snapping to character width/height.
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* You need to uncomment the corresponding line in config.mk to use the -lXrender library
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* when including this patch.
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* https://st.suckless.org/patches/anysize/
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*/
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#define ANYSIZE_PATCH 0
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/* By default bold text is rendered with a bold font in the bright variant of the current color.
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* This patch makes bold text rendered simply as bold, leaving the color unaffected.
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* https://st.suckless.org/patches/bold-is-not-bright/
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*/
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#define BOLD_IS_NOT_BRIGHT_PATCH 0
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/* This patch adds dustom rendering of lines/blocks/braille characters for gapless alignment.
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* https://st.suckless.org/patches/boxdraw/
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*/
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#define BOXDRAW_PATCH 0
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/* By default st only sets PRIMARY on selection.
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* This patch makes st set CLIPBOARD on selection.
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* https://st.suckless.org/patches/clipboard/
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*/
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#define CLIPBOARD_PATCH 0
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/* Select and copy the last URL displayed with Mod+l. Multiple invocations cycle through the
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* available URLs.
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* https://st.suckless.org/patches/copyurl/
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*/
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#define COPYURL_PATCH 0
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/* Select and copy the last URL displayed with Mod+l. Multiple invocations cycle through the
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* available URLs. This variant also highlights the selected URLs.
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* https://st.suckless.org/patches/copyurl/
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*/
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#define COPYURL_HIGHLIGHT_SELECTED_URLS_PATCH 0
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/* This patch adds the option of disabling bold fonts globally.
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* https://st.suckless.org/patches/disable_bold_italic_fonts/
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*/
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#define DISABLE_BOLD_FONTS_PATCH 0
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/* This patch adds the option of disabling italic fonts globally.
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* https://st.suckless.org/patches/disable_bold_italic_fonts/
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*/
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#define DISABLE_ITALIC_FONTS_PATCH 0
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/* This patch adds the option of disabling roman fonts globally.
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* https://st.suckless.org/patches/disable_bold_italic_fonts/
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*/
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#define DISABLE_ROMAN_FONTS_PATCH 0
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/* Reading and writing st's screen through a pipe, e.g. pass info to dmenu.
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* https://st.suckless.org/patches/externalpipe/
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*/
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#define EXTERNALPIPE_PATCH 0
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/* This patch improves and extends the externalpipe patch in two ways:
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* - it prevents the reset of the signal handler set on SIGCHILD, when
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* the forked process that executes the external process exits and
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* - it adds the externalpipein function to redirect the standard output
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* of the external command to the slave size of the pty, that is, as if
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* the external program had been manually executed on the terminal
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*
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* It can be used to send desired escape sequences to the terminal with a
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* keyboard shortcut. The patch was created to make use of the dynamic-colors
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* tool that uses the OSC escape sequences to change the colors of the terminal.
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*
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* This patch depends on EXTERNALPIPE_PATCH being enabled.
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*
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* https://github.com/sos4nt/dynamic-colors
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* https://lists.suckless.org/hackers/2004/17218.html
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*/
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#define EXTERNALPIPEIN_PATCH 0
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/* This patch allows command line applications to use all the fancy key combinations
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* that are available to GUI applications.
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* https://st.suckless.org/patches/fix_keyboard_input/
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*/
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#define FIXKEYBOARDINPUT_PATCH 0
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/* This patch allows you to add spare font besides the default. Some glyphs can be not present in
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* the default font. For this glyphs st uses font-config and try to find them in font cache first.
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* This patch append fonts defined in font2 variable to the beginning of the font cache.
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* So they will be used first for glyphs that are absent in the default font.
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* https://st.suckless.org/patches/font2/
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*/
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#define FONT2_PATCH 0
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/* Hide the X cursor whenever a key is pressed and show it back when the mouse is moved in
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* the terminal window.
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* https://st.suckless.org/patches/hidecursor/
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*/
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#define HIDECURSOR_PATCH 0
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/* This patch adds a keybinding that lets you invert the current colorscheme of st.
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* This provides a simple way to temporarily switch to a light colorscheme if you use a dark
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* colorscheme or visa-versa.
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* https://st.suckless.org/patches/invert/
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*/
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#define INVERT_PATCH 0
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/* Pressing the default binding Ctrl+Shift-i will popup dmenu, asking you to enter a unicode
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* codepoint that will be converted to a glyph and then pushed to st.
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* https://st.suckless.org/patches/iso14755/
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*/
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#define ISO14755_PATCH 0
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/* This patch allows you to select text on the terminal using keyboard shortcuts.
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* https://st.suckless.org/patches/keyboard_select/
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*/
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#define KEYBOARDSELECT_PATCH 0
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/* This patch allows you to spawn a new st terminal using Ctrl-Shift-Return. It will have the
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* same CWD (current working directory) as the original st instance.
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* https://st.suckless.org/patches/newterm/
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*/
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#define NEWTERM_PATCH 0
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/* Open contents of the clipboard in a user-defined browser.
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* https://st.suckless.org/patches/open_copied_url/
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*/
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#define OPENCOPIED_PATCH 0
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/* This patch allows you to specify a border that is relative in size to the width of a cell
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* in the terminal.
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* https://st.suckless.org/patches/relativeborder/
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*/
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#define RELATIVEBORDER_PATCH 0
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/* This patch allows you to right-click on some selected text to send it to the plumbing
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* program of choice, e.g. open a file, view an image, open a URL.
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* https://st.suckless.org/patches/right_click_to_plumb/
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*/
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#define RIGHTCLICKTOPLUMB_PATCH 0
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/* Scroll back through terminal output using Shift+{PageUp, PageDown}.
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* https://st.suckless.org/patches/scrollback/
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*/
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#define SCROLLBACK_PATCH 0
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/* Scroll back through terminal output using Shift+MouseWheel.
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* This variant depends on SCROLLBACK_PATCH being enabled.
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* https://st.suckless.org/patches/scrollback/
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*/
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#define SCROLLBACK_MOUSE_PATCH 0
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/* Scroll back through terminal output using mouse wheel (when not in MODE_ALTSCREEN).
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* This variant depends on SCROLLBACK_PATCH being enabled.
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* https://st.suckless.org/patches/scrollback/
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*/
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#define SCROLLBACK_MOUSE_ALTSCREEN_PATCH 0
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/* This patch allows clients to embed into the st window and is useful if you tend to
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* start X applications from the terminal. For example:
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*
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* $ surf -e $WINDOWID
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*
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* The behavior is similar to Plan 9 where applications can take over windows.
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* URL TBC
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*/
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#define ST_EMBEDDER_PATCH 0
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/* Use inverted defaultbg/fg for selection when bg/fg are the same.
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* https://st.suckless.org/patches/spoiler/
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*/
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#define SPOILER_PATCH 0
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/* Instead of a default X cursor, use the xterm cursor from your cursor theme.
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* You need to uncomment the corresponding line in config.mk to use the -lXcursor library
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* when including this patch.
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* https://st.suckless.org/patches/themed_cursor/
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*/
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#define THEMED_CURSOR_PATCH 0
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/*
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* Vertically center lines in the space available if you have set a larger chscale in config.h
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* https://st.suckless.org/patches/vertcenter/
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*/
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#define VERTCENTER_PATCH 0
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/* This patch allows user to specify the initial path st should use as the working directory.
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* https://st.suckless.org/patches/workingdir/
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*/
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#define WORKINGDIR_PATCH 0
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/* This patch adds the ability to configure st via Xresources. At startup, st will read and
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* apply the resources named in the resources[] array in config.h.
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* https://st.suckless.org/patches/xresources/
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*/
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#define XRESOURCES_PATCH 0
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