This allows getting updated values when the kernel is modifying them
behind our back.
---
src/drmmode_display.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 53 insertions(+), 0 deletions(-)
diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index 805dc5b..9b61da8 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -836,6 +836,56 @@ drmmode_output_set_property(xf86OutputPtr output, Atom
property,
return TRUE;
}
+#ifdef RANDR_13_INTERFACE
+static Bool
+drmmode_output_get_property(xf86OutputPtr output, Atom property)
+{
+
+ drmmode_output_private_ptr drmmode_output = output->driver_private;
+ drmmode_ptr drmmode = drmmode_output->drmmode;
+ uint32_t value;
+ int err, i;
+
+ drmModeFreeConnector(drmmode_output->mode_output);
+
+ drmmode_output->mode_output =
+ drmModeGetConnector(drmmode->fd, drmmode_output->output_id);
+
+ for (i = 0; i < drmmode_output->num_props; i++) {
+ drmmode_prop_ptr p = &drmmode_output->props[i];
+ if (p->atoms[0] != property)
+ continue;
+
+ value = drmmode_output->mode_output->prop_values[p->index];
+
+ if (p->mode_prop->flags & DRM_MODE_PROP_RANGE) {
+ err = RRChangeOutputProperty(output->randr_output,
+ property, XA_INTEGER, 32,
+ PropModeReplace, 1, &value,
+ FALSE, FALSE);
+
+ return !err;
+ } else if (p->mode_prop->flags & DRM_MODE_PROP_ENUM) {
+ int j;
+
+ /* search for matching name string, then set its value
down */
+ for (j = 0; j < p->mode_prop->count_enums; j++) {
+ if (p->mode_prop->enums[j].value == value)
+ break;
+ }
+
+ err = RRChangeOutputProperty(output->randr_output,
property,
+ XA_ATOM, 32,
PropModeReplace, 1,
+ &p->atoms[j+1], FALSE,
FALSE);
+
+ return !err;
+ }
+ }
+
+ return FALSE;
+}
+#endif
+
static const xf86OutputFuncsRec drmmode_output_funcs = {
.create_resources = drmmode_output_create_resources,
.dpms = drmmode_output_dpms,
@@ -853,6 +903,9 @@ static const xf86OutputFuncsRec drmmode_output_funcs = {
.get_modes = drmmode_output_get_modes,
.set_property = drmmode_output_set_property,
+#ifdef RANDR_13_INTERFACE
+ .get_property = drmmode_output_get_property,
+#endif
.destroy = drmmode_output_destroy
};
--
1.6.3.3
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