Double scan modes have double the dots to be scanned and interlaced
modes only have half the dots to be scanned.
Signed-off-by: Zhiyi Zhang <zzhang(a)codeweavers.com>
---
v2: Don't add a 0.05 rounding to the frequency value.
dlls/winex11.drv/xrandr.c | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
diff --git a/dlls/winex11.drv/xrandr.c b/dlls/winex11.drv/xrandr.c
index bef52128f21..95e4a5d6dba 100644
--- a/dlls/winex11.drv/xrandr.c
+++ b/dlls/winex11.drv/xrandr.c
@@ -482,6 +482,21 @@ static XRRCrtcInfo *xrandr12_get_primary_crtc_info( XRRScreenResources *resource
return NULL;
}
+static unsigned int get_frequency( const XRRModeInfo *mode )
+{
+ unsigned int dots = mode->hTotal * mode->vTotal;
+
+ if (!dots)
+ return 0;
+
+ if (mode->modeFlags & RR_DoubleScan)
+ dots *= 2;
+ if (mode->modeFlags & RR_Interlace)
+ dots /= 2;
+
+ return (mode->dotClock + dots / 2) / dots;
+}
+
static int xrandr12_init_modes(void)
{
unsigned int only_one_resolution = 1, mode_count;
@@ -540,8 +555,7 @@ static int xrandr12_init_modes(void)
if (mode->id == output_info->modes[i])
{
- unsigned int dots = mode->hTotal * mode->vTotal;
- unsigned int refresh = dots ? (mode->dotClock + dots / 2) / dots : 0;
+ unsigned int refresh = get_frequency( mode );
TRACE("Adding mode %#lx: %ux%u(a)%u.\n", mode->id, mode->width, mode->height, refresh);
X11DRV_Settings_AddOneMode( mode->width, mode->height, 0, refresh );
--
2.20.1