vid_vsync: fully support adaptive, remove polling, print better errors

[xonotic/darkplaces.git] / vid_shared.c

diff --git a/vid_shared.c b/vid_shared.c
index 2532d8e4c2e8a278fa73187ad5fe9083219fdc55..aa3bdb1f4621b7588eed854b2b9eee487244c0da 100644 (file)
--- a/vid_shared.c
+++ b/vid_shared.c
@@ -147,7 +147,7 @@ cvar_t vid_touchscreen_density = {CF_CLIENT, "vid_touchscreen_density", "2.0", "
 cvar_t vid_touchscreen_xdpi = {CF_CLIENT, "vid_touchscreen_xdpi", "300", "Horizontal DPI of the screen (only valid on Android currently)"};
 cvar_t vid_touchscreen_ydpi = {CF_CLIENT, "vid_touchscreen_ydpi", "300", "Vertical DPI of the screen (only valid on Android currently)"};
 
-cvar_t vid_vsync = {CF_CLIENT | CF_ARCHIVE, "vid_vsync", "0", "sync to vertical blank, prevents 'tearing' (seeing part of one frame and part of another on the screen at the same time), automatically disabled when doing timedemo benchmarks"};
+cvar_t vid_vsync = {CF_CLIENT | CF_ARCHIVE, "vid_vsync", "0", "sync to vertical blank, prevents 'tearing' (seeing part of one frame and part of another on the screen at the same time) at the cost of latency, 1 always syncs and -1 is adaptive (stops syncing if the framerate drops, unsupported by some platforms), automatically disabled when doing timedemo benchmarks"};
 cvar_t vid_mouse = {CF_CLIENT | CF_ARCHIVE, "vid_mouse", "1", "whether to use the mouse in windowed mode (fullscreen always does)"};
 cvar_t vid_mouse_clickthrough = {CF_CLIENT | CF_ARCHIVE, "vid_mouse_clickthrough", "0", "mouse behavior in windowed mode: 0 = click to focus, 1 = allow interaction even if the window is not focused (click-through behaviour, can be useful when using third-party game overlays)"};
 cvar_t vid_grabkeyboard = {CF_CLIENT | CF_ARCHIVE, "vid_grabkeyboard", "0", "whether to grab the keyboard when mouse is active (prevents use of volume control keys, music player keys, etc on some keyboards)"};