mirror of https://github.com/yshui/picom.git
core: exit if paint_preprocess fails
This usually means there is another compositor running. If we don't do this picom will spin forever. Fixes #1104 Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
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@ -1741,6 +1741,11 @@ static void draw_callback_impl(EV_P_ session_t *ps, int revents attr_unused) {
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auto bottom = paint_preprocess(ps, &fade_running, &animation);
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ps->tmout_unredir_hit = false;
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if (!bottom) {
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log_fatal("Pre-render preparation has failed, exiting...");
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exit(1);
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}
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if (!was_redirected && ps->redirected) {
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// paint_preprocess redirected the screen, which might change the state of
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// some of the windows (e.g. the window image might become stale).
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