71 lines
2.5 KiB
Diff
71 lines
2.5 KiB
Diff
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From 138916577787bbdf19cf9523b15603f73b4f4472 Mon Sep 17 00:00:00 2001
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From: Kai Krakow <kai@kaishome.de>
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Date: Thu, 4 Oct 2018 05:51:20 +0200
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Subject: [PATCH 2/2] winex11.drv: Bypass compositor in fullscreen mode.
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Bypass the compositor in fullscreen mode. This reduces stutter
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introduced by window updates in the background and also allows for maybe
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a few more FPS. To not change the visual appearance of the desktop for
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windowed games, this hack only enables itself when the game was switched
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to fullscreen mode, and returns to default WM setting when the game
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leaves fullscreen mode.
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Compositors tend to cause severe stutter if the game is GPU-bound.
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---
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dlls/winex11.drv/window.c | 7 +++++++
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dlls/winex11.drv/x11drv.h | 1 +
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dlls/winex11.drv/x11drv_main.c | 1 +
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3 files changed, 9 insertions(+)
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--- a/dlls/winex11.drv/window.c
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+++ b/dlls/winex11.drv/window.c
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@@ -1036,6 +1036,7 @@
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void update_net_wm_states( struct x11drv_win_data *data )
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{
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UINT i, style, ex_style, new_state = 0;
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+ unsigned long net_wm_bypass_compositor = 0;
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if (!data->managed) return;
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if (data->whole_window == root_window) return;
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@@ -1048,7 +1049,10 @@
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if ((style & WS_MAXIMIZE) && (style & WS_CAPTION) == WS_CAPTION)
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new_state |= (1 << NET_WM_STATE_MAXIMIZED);
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else if (!(style & WS_MINIMIZE))
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+ {
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+ net_wm_bypass_compositor = 1;
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new_state |= (1 << NET_WM_STATE_FULLSCREEN);
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+ }
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}
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else if (style & WS_MAXIMIZE)
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new_state |= (1 << NET_WM_STATE_MAXIMIZED);
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@@ -1112,6 +1116,9 @@
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}
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data->net_wm_state = new_state;
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update_net_wm_fullscreen_monitors( data );
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+
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+ XChangeProperty( data->display, data->whole_window, x11drv_atom(_NET_WM_BYPASS_COMPOSITOR), XA_CARDINAL,
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+ 32, PropModeReplace, (unsigned char *)&net_wm_bypass_compositor, 1 );
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}
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/***********************************************************************
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--- a/dlls/winex11.drv/x11drv.h
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+++ b/dlls/winex11.drv/x11drv.h
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@@ -501,6 +501,7 @@
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XATOM__NET_SYSTEM_TRAY_OPCODE,
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XATOM__NET_SYSTEM_TRAY_S0,
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XATOM__NET_SYSTEM_TRAY_VISUAL,
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+ XATOM__NET_WM_BYPASS_COMPOSITOR,
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XATOM__NET_WM_FULLSCREEN_MONITORS,
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XATOM__NET_WM_ICON,
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XATOM__NET_WM_MOVERESIZE,
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--- a/dlls/winex11.drv/x11drv_main.c
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+++ b/dlls/winex11.drv/x11drv_main.c
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@@ -159,6 +159,7 @@
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"_NET_SYSTEM_TRAY_OPCODE",
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"_NET_SYSTEM_TRAY_S0",
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"_NET_SYSTEM_TRAY_VISUAL",
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+ "_NET_WM_BYPASS_COMPOSITOR",
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"_NET_WM_FULLSCREEN_MONITORS",
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"_NET_WM_ICON",
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"_NET_WM_MOVERESIZE",
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