cogl/onscreen: Move direct scanout to CoglOnscreen class

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1514>

cogl/cogl/cogl-onscreen.c

@@ -30,6 +30,8 @@
 
 #include "cogl-config.h"
 
+#include <gio/gio.h>
+
 #include "cogl-util.h"
 #include "cogl-onscreen-private.h"
 #include "cogl-frame-info-private.h"
@@ -442,20 +444,26 @@ cogl_onscreen_direct_scanout (CoglOnscreen   *onscreen,
 {
   CoglOnscreenPrivate *priv = cogl_onscreen_get_instance_private (onscreen);
   CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
-  const CoglWinsysVtable *winsys;
+  CoglOnscreenClass *klass = COGL_ONSCREEN_GET_CLASS (onscreen);
 
   g_warn_if_fail (COGL_IS_ONSCREEN (framebuffer));
   g_warn_if_fail (_cogl_winsys_has_feature (COGL_WINSYS_FEATURE_SYNC_AND_COMPLETE_EVENT));
 
+  if (!klass->direct_scanout)
+    {
+      g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
+                   "Direct scanout not supported");
+      return FALSE;
+    }
+
   info->frame_counter = priv->frame_counter;
   g_queue_push_tail (&priv->pending_frame_infos, info);
 
-  winsys = _cogl_framebuffer_get_winsys (framebuffer);
+  if (!klass->direct_scanout (onscreen,
-  if (!winsys->onscreen_direct_scanout (onscreen,
+                              scanout,
-                                        scanout,
+                              info,
-                                        info,
+                              user_data,
-                                        user_data,
+                              error))
-                                        error))
     {
       g_queue_pop_tail (&priv->pending_frame_infos);
       return FALSE;

cogl/cogl/cogl-onscreen.h

@@ -47,6 +47,8 @@
 
 G_BEGIN_DECLS
 
+typedef struct _CoglScanout CoglScanout;
+
 #define COGL_TYPE_ONSCREEN (cogl_onscreen_get_type ())
 COGL_EXPORT
 G_DECLARE_DERIVABLE_TYPE (CoglOnscreen, cogl_onscreen,
@@ -72,6 +74,11 @@ struct _CoglOnscreenClass
                         CoglFrameInfo *info,
                         gpointer       user_data);
 
+  gboolean (* direct_scanout) (CoglOnscreen   *onscreen,
+                               CoglScanout    *scanout,
+                               CoglFrameInfo  *info,
+                               gpointer        user_data,
+                               GError        **error);
 };
 
 #define COGL_SCANOUT_ERROR (cogl_scanout_error_quark ())
@@ -83,8 +90,6 @@ typedef enum _CoglScanoutError
   COGL_SCANOUT_ERROR_INHIBITED,
 } CoglScanoutError;
 
-typedef struct _CoglScanout CoglScanout;
-
 #ifdef COGL_HAS_X11
 /**
  * cogl_x11_onscreen_get_window_xid:

cogl/cogl/winsys/cogl-winsys-private.h

@@ -104,13 +104,6 @@ typedef struct _CoglWinsysVtable
   void
   (*context_deinit) (CoglContext *context);
 
-  gboolean
-  (*onscreen_direct_scanout) (CoglOnscreen   *onscreen,
-                              CoglScanout    *scanout,
-                              CoglFrameInfo  *info,
-                              gpointer        user_data,
-                              GError        **error);
-
   void
   (*onscreen_set_visibility) (CoglOnscreen *onscreen,
                               gboolean visibility);

src/backends/native/meta-onscreen-native.c

@@ -1177,7 +1177,7 @@ meta_onscreen_native_is_buffer_scanout_compatible (CoglOnscreen *onscreen,
   return TRUE;
 }
 
-gboolean
+static gboolean
 meta_onscreen_native_direct_scanout (CoglOnscreen   *onscreen,
                                      CoglScanout    *scanout,
                                      CoglFrameInfo  *frame_info,
@@ -2112,4 +2112,5 @@ meta_onscreen_native_class_init (MetaOnscreenNativeClass *klass)
 
   onscreen_class->swap_buffers_with_damage =
     meta_onscreen_native_swap_buffers_with_damage;
+  onscreen_class->direct_scanout = meta_onscreen_native_direct_scanout;
 }

src/backends/native/meta-onscreen-native.h

@@ -35,12 +35,6 @@ G_DECLARE_FINAL_TYPE (MetaOnscreenNative, meta_onscreen_native,
 
 void meta_renderer_native_release_onscreen (CoglOnscreen *onscreen);
 
-gboolean meta_onscreen_native_direct_scanout (CoglOnscreen   *onscreen,
-                                              CoglScanout    *scanout,
-                                              CoglFrameInfo  *frame_info,
-                                              gpointer        user_data,
-                                              GError        **error);
-
 void meta_onscreen_native_finish_frame (CoglOnscreen *onscreen,
                                         ClutterFrame *frame);
 

src/backends/native/meta-renderer-native.c

@@ -940,8 +940,6 @@ get_native_cogl_winsys_vtable (CoglRenderer *cogl_renderer)
       vtable.renderer_disconnect = meta_renderer_native_disconnect;
       vtable.renderer_create_dma_buf = meta_renderer_native_create_dma_buf;
 
-      vtable.onscreen_direct_scanout = meta_onscreen_native_direct_scanout;
-
       vtable.context_get_clock_time = meta_renderer_native_get_clock_time;
 
       vtable_inited = TRUE;