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igt_kms: optionally return the property from get_property

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So we can use this function on places that also need the property
pointer, without having to call drmModeGetProperty() again with the
returned id.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
This commit is contained in:
Paulo Zanoni 2014-08-06 12:03:57 -03:00
parent 18d8ea7fe4
commit 053c104322
1 changed files with 18 additions and 13 deletions
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31
lib/igt_kms.c
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@ -595,42 +595,46 @@ static void igt_output_refresh(igt_output_t *output)
static bool
get_property(int drm_fd, uint32_t object_id, uint32_t object_type,
const char *name, uint32_t *prop_id /* out */,
uint64_t *value /* out */)
uint64_t *value /* out */, drmModePropertyPtr *prop /* out */)
{
drmModeObjectPropertiesPtr proplist;
drmModePropertyPtr prop = NULL;
drmModePropertyPtr _prop;
bool found = false;
int i;
proplist = drmModeObjectGetProperties(drm_fd, object_id, object_type);
for (i = 0; i < proplist->count_props; i++) {
drmModeFreeProperty(prop);
prop = drmModeGetProperty(drm_fd, proplist->props[i]);
if (!prop)
_prop = drmModeGetProperty(drm_fd, proplist->props[i]);
if (!_prop)
continue;
if (strcmp(prop->name, name) == 0) {
if (strcmp(_prop->name, name) == 0) {
found = true;
if (prop_id)
*prop_id = proplist->props[i];
if (value)
*value = proplist->prop_values[i];
goto out;
if (prop)
*prop = _prop;
else
drmModeFreeProperty(_prop);
break;
}
drmModeFreeProperty(_prop);
}
out:
drmModeFreeProperty(prop);
drmModeFreeObjectProperties(proplist);
return found;
}
static bool
get_plane_property(int drm_fd, uint32_t plane_id, const char *name,
uint32_t *prop_id /* out */, uint64_t *value /* out */)
uint32_t *prop_id /* out */, uint64_t *value /* out */,
drmModePropertyPtr *prop /* out */)
{
return get_property(drm_fd, plane_id, DRM_MODE_OBJECT_PLANE,
name, prop_id, value);
name, prop_id, value, prop);
}
static void
@ -654,7 +658,7 @@ static int get_drm_plane_type(int drm_fd, uint32_t plane_id)
bool has_prop;
has_prop = get_plane_property(drm_fd, plane_id, "type",
NULL /* prop_id */, &value);
NULL /* prop_id */, &value, NULL);
if (has_prop)
return (int)value;
@ -743,7 +747,8 @@ void igt_display_init(igt_display_t *display, int drm_fd)
get_plane_property(display->drm_fd, drm_plane->plane_id,
"rotation",
&plane->rotation_property,
&prop_value);
&prop_value,
NULL);
plane->rotation = (igt_rotation_t)prop_value;
}