Mesa (master): st/wgl: check if WGL_SWAP_INTERVAL is defined in wglSwapIntervalEXT()
Brian Paul
brianp at kemper.freedesktop.org
Fri Mar 30 20:45:41 UTC 2018
Module: Mesa
Branch: master
Commit: c8906b845928955679b289dbc8e7a153071dffa7
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=c8906b845928955679b289dbc8e7a153071dffa7
Author: Brian Paul <brianp at vmware.com>
Date: Fri Mar 30 14:44:50 2018 -0600
st/wgl: check if WGL_SWAP_INTERVAL is defined in wglSwapIntervalEXT()
This allows the WGL_SWAP_INTERVAL env var to override any application
calls to wglSwapIntervalEXT(). Useful for debugging, or to set the
interval to zero to effectively disable the swap interval.
Note: we also rename the previous instance of SVGA_SWAP_INTERVAL to
WGL_SWAP_INTERVAL since this is a WGL feature and not related to the
svga driver.
Reviewed-by: Charmaine Lee <charmainel at vmware.com>
---
src/gallium/state_trackers/wgl/stw_device.c | 2 +-
src/gallium/state_trackers/wgl/stw_ext_swapinterval.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/gallium/state_trackers/wgl/stw_device.c b/src/gallium/state_trackers/wgl/stw_device.c
index b88e1100eb..e43f12f7f2 100644
--- a/src/gallium/state_trackers/wgl/stw_device.c
+++ b/src/gallium/state_trackers/wgl/stw_device.c
@@ -135,7 +135,7 @@ stw_init(const struct stw_winsys *stw_winsys)
stw_pixelformat_init();
/* env var override for WGL_EXT_swap_control, useful for testing/debugging */
- const char *s = os_get_option("SVGA_SWAP_INTERVAL");
+ const char *s = os_get_option("WGL_SWAP_INTERVAL");
if (s) {
stw_dev->swap_interval = atoi(s);
}
diff --git a/src/gallium/state_trackers/wgl/stw_ext_swapinterval.c b/src/gallium/state_trackers/wgl/stw_ext_swapinterval.c
index b2074a73fb..3b913e7db9 100644
--- a/src/gallium/state_trackers/wgl/stw_ext_swapinterval.c
+++ b/src/gallium/state_trackers/wgl/stw_ext_swapinterval.c
@@ -48,7 +48,7 @@ wglSwapIntervalEXT(int interval)
SetLastError(ERROR_INVALID_DATA);
return FALSE;
}
- if (stw_dev) {
+ if (stw_dev && !os_get_option("WGL_SWAP_INTERVAL")) {
stw_dev->swap_interval = interval;
}
return TRUE;
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