kms/plane: Find property IDs to be used for atomic modesetting

Currently undiscovered, as we haven't enabled the atomic modesetting
capability, but lets get the infrastructure to get the property IDs in
place.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1488>

src/backends/native/meta-kms-plane-private.h

@@ -26,6 +26,22 @@
 #include "backends/native/meta-kms-plane.h"
 #include "backends/native/meta-kms-types.h"
 
+typedef enum _MetaKmsPlaneProp
+{
+  META_KMS_PLANE_PROP_TYPE = 0,
+  META_KMS_PLANE_PROP_SRC_X,
+  META_KMS_PLANE_PROP_SRC_Y,
+  META_KMS_PLANE_PROP_SRC_W,
+  META_KMS_PLANE_PROP_SRC_H,
+  META_KMS_PLANE_PROP_CRTC_X,
+  META_KMS_PLANE_PROP_CRTC_Y,
+  META_KMS_PLANE_PROP_CRTC_W,
+  META_KMS_PLANE_PROP_CRTC_H,
+  META_KMS_PLANE_PROP_FB_ID,
+  META_KMS_PLANE_PROP_CRTC_ID,
+  META_KMS_PLANE_N_PROPS
+} MetaKmsPlaneProp;
+
 MetaKmsPlane * meta_kms_plane_new (MetaKmsPlaneType         type,
                                    MetaKmsImplDevice       *impl_device,
                                    drmModePlane            *drm_plane,
@@ -34,4 +50,10 @@ MetaKmsPlane * meta_kms_plane_new (MetaKmsPlaneType         type,
 MetaKmsPlane * meta_kms_plane_new_fake (MetaKmsPlaneType  type,
                                         MetaKmsCrtc      *crtc);
 
+uint32_t meta_kms_plane_get_prop_id (MetaKmsPlane     *plane,
+                                     MetaKmsPlaneProp  prop);
+
+const char * meta_kms_plane_get_prop_name (MetaKmsPlane     *plane,
+                                           MetaKmsPlaneProp  prop);
+
 #endif /* META_KMS_PLANE_PRIVATE_H */

src/backends/native/meta-kms-plane.c

@@ -30,6 +30,11 @@
 #include "backends/native/meta-kms-impl-device.h"
 #include "backends/native/meta-kms-update-private.h"
 
+typedef struct _MetaKmsPlanePropTable
+{
+  MetaKmsProp props[META_KMS_PLANE_N_PROPS];
+} MetaKmsPlanePropTable;
+
 struct _MetaKmsPlane
 {
   GObject parent;
@@ -52,6 +57,8 @@ struct _MetaKmsPlane
    */
   GHashTable *formats_modifiers;
 
+  MetaKmsPlanePropTable prop_table;
+
   MetaKmsDevice *device;
 };
 
@@ -77,6 +84,20 @@ meta_kms_plane_get_plane_type (MetaKmsPlane *plane)
   return plane->type;
 }
 
+uint32_t
+meta_kms_plane_get_prop_id (MetaKmsPlane     *plane,
+                            MetaKmsPlaneProp  prop)
+{
+  return plane->prop_table.props[prop].prop_id;
+}
+
+const char *
+meta_kms_plane_get_prop_name (MetaKmsPlane     *plane,
+                              MetaKmsPlaneProp  prop)
+{
+  return plane->prop_table.props[prop].name;
+}
+
 void
 meta_kms_plane_update_set_rotation (MetaKmsPlane           *plane,
                                     MetaKmsPlaneAssignment *plane_assignment,
@@ -363,6 +384,81 @@ init_formats (MetaKmsPlane            *plane,
     }
 }
 
+static void
+init_properties (MetaKmsPlane            *plane,
+                 MetaKmsImplDevice       *impl_device,
+                 drmModePlane            *drm_plane,
+                 drmModeObjectProperties *drm_plane_props)
+{
+  MetaKmsPlanePropTable *prop_table = &plane->prop_table;
+
+  *prop_table = (MetaKmsPlanePropTable) {
+    .props = {
+      [META_KMS_PLANE_PROP_TYPE] =
+        {
+          .name = "type",
+          .type = DRM_MODE_PROP_ENUM,
+        },
+      [META_KMS_PLANE_PROP_SRC_X] =
+        {
+          .name = "SRC_X",
+          .type = DRM_MODE_PROP_RANGE,
+        },
+      [META_KMS_PLANE_PROP_SRC_Y] =
+        {
+          .name = "SRC_Y",
+          .type = DRM_MODE_PROP_RANGE,
+        },
+      [META_KMS_PLANE_PROP_SRC_W] =
+        {
+          .name = "SRC_W",
+          .type = DRM_MODE_PROP_RANGE,
+        },
+      [META_KMS_PLANE_PROP_SRC_H] =
+        {
+          .name = "SRC_H",
+          .type = DRM_MODE_PROP_RANGE,
+        },
+      [META_KMS_PLANE_PROP_CRTC_X] =
+        {
+          .name = "CRTC_X",
+          .type = DRM_MODE_PROP_SIGNED_RANGE,
+        },
+      [META_KMS_PLANE_PROP_CRTC_Y] =
+        {
+          .name = "CRTC_Y",
+          .type = DRM_MODE_PROP_SIGNED_RANGE,
+        },
+      [META_KMS_PLANE_PROP_CRTC_W] =
+        {
+          .name = "CRTC_W",
+          .type = DRM_MODE_PROP_RANGE,
+        },
+      [META_KMS_PLANE_PROP_CRTC_H] =
+        {
+          .name = "CRTC_H",
+          .type = DRM_MODE_PROP_RANGE,
+        },
+      [META_KMS_PLANE_PROP_FB_ID] =
+        {
+          .name = "FB_ID",
+          .type = DRM_MODE_PROP_OBJECT,
+        },
+      [META_KMS_PLANE_PROP_CRTC_ID] =
+        {
+          .name = "CRTC_ID",
+          .type = DRM_MODE_PROP_OBJECT,
+        },
+    }
+  };
+
+  meta_kms_impl_device_init_prop_table (impl_device,
+                                        drm_plane_props->props,
+                                        drm_plane_props->count_props,
+                                        plane->prop_table.props,
+                                        META_KMS_PLANE_N_PROPS);
+}
+
 MetaKmsPlane *
 meta_kms_plane_new (MetaKmsPlaneType         type,
                     MetaKmsImplDevice       *impl_device,
@@ -380,6 +476,8 @@ meta_kms_plane_new (MetaKmsPlaneType         type,
   init_rotations (plane, impl_device, drm_plane_props);
   init_formats (plane, impl_device, drm_plane, drm_plane_props);
 
+  init_properties (plane, impl_device, drm_plane, drm_plane_props);
+
   return plane;
 }