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backend: add output tile info retrieval.

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this just adds backend support for retrieving the tile
information from X11 (randr 1.5) and native backends.

It stores the tiling information into the output struct.
This commit is contained in:
Dave Airlie
2015-03-31 10:41:51 +10:00
committed by Jasper St. Pierre
parent ef296031cb
commit 6a77d9722a
3 changed files with 98 additions and 0 deletions
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47
src/backends/native/meta-monitor-manager-kms.c
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@ -55,6 +55,7 @@ typedef struct {
uint32_t dpms_prop_id;
uint32_t edid_blob_id;
uint32_t tile_blob_id;
} MetaOutputKms;
typedef struct {
@ -208,6 +209,9 @@ find_connector_properties (MetaMonitorManagerKms *manager_kms,
output_kms->dpms_prop_id = prop->prop_id;
else if ((prop->flags & DRM_MODE_PROP_BLOB) && strcmp (prop->name, "EDID") == 0)
output_kms->edid_blob_id = output_kms->connector->prop_values[i];
else if ((prop->flags & DRM_MODE_PROP_BLOB) &&
strcmp (prop->name, "TILE") == 0)
output_kms->tile_blob_id = output_kms->connector->prop_values[i];
drmModeFreeProperty (prop);
}
@ -273,6 +277,47 @@ read_output_edid (MetaMonitorManagerKms *manager_kms,
}
}
static gboolean
output_get_tile_info (MetaMonitorManagerKms *manager_kms,
MetaOutput *output)
{
MetaOutputKms *output_kms = output->driver_private;
drmModePropertyBlobPtr tile_blob = NULL;
int ret;
if (output_kms->tile_blob_id == 0)
return FALSE;
tile_blob = drmModeGetPropertyBlob (manager_kms->fd, output_kms->tile_blob_id);
if (!tile_blob)
{
meta_warning ("Failed to read TILE of output %s: %s\n", output->name, strerror(errno));
return FALSE;
}
if (tile_blob->length > 0)
{
ret = sscanf ((char *)tile_blob->data, "%d:%d:%d:%d:%d:%d:%d:%d",
&output->tile_info.group_id,
&output->tile_info.flags,
&output->tile_info.max_h_tiles,
&output->tile_info.max_v_tiles,
&output->tile_info.loc_h_tile,
&output->tile_info.loc_v_tile,
&output->tile_info.tile_w,
&output->tile_info.tile_h);
if (ret != 8)
return FALSE;
return TRUE;
}
else
{
drmModeFreePropertyBlob (tile_blob);
return FALSE;
}
}
static MetaMonitorMode *
find_meta_mode (MetaMonitorManager *manager,
const drmModeModeInfo *drm_mode)
@ -622,6 +667,8 @@ meta_monitor_manager_kms_read_current (MetaMonitorManager *manager)
meta_output->scale = get_output_scale (manager, meta_output);
output_get_tile_info (manager_kms, meta_output);
/* FIXME: backlight is a very driver specific thing unfortunately,
every DDX does its own thing, and the dumb KMS API does not include it.