[mutter/gbsneto/more-screencast: 3/9] monitor-stream-src: Blit scanout when available




commit 4707f47dec7a97ccca90f434ab03acd00edc7179
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri Aug 28 23:01:11 2020 -0300

    monitor-stream-src: Blit scanout when available
    
    When there's a direct scanout set in the stage view, we
    have to use it instead of the view's regular onscreen
    framebuffer.
    
    Use the new CoglScanout API to implement blitting to the
    stream framebuffer.
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1421

 src/backends/meta-screen-cast-monitor-stream-src.c | 32 +++++++++++++++-------
 1 file changed, 22 insertions(+), 10 deletions(-)
---
diff --git a/src/backends/meta-screen-cast-monitor-stream-src.c 
b/src/backends/meta-screen-cast-monitor-stream-src.c
index 78aba0a953..760fe7471b 100644
--- a/src/backends/meta-screen-cast-monitor-stream-src.c
+++ b/src/backends/meta-screen-cast-monitor-stream-src.c
@@ -520,6 +520,7 @@ meta_screen_cast_monitor_stream_src_record_to_framebuffer (MetaScreenCastStreamS
     {
       ClutterStageView *view = CLUTTER_STAGE_VIEW (l->data);
       CoglFramebuffer *view_framebuffer;
+      CoglScanout *scanout;
       MetaRectangle view_layout;
       int x, y;
 
@@ -528,19 +529,30 @@ meta_screen_cast_monitor_stream_src_record_to_framebuffer (MetaScreenCastStreamS
       if (!meta_rectangle_overlap (&logical_monitor_layout, &view_layout))
         continue;
 
-      view_framebuffer = clutter_stage_view_get_framebuffer (view);
-
       x = (int) roundf ((view_layout.x - logical_monitor_layout.x) * view_scale);
       y = (int) roundf ((view_layout.y - logical_monitor_layout.y) * view_scale);
 
-      if (!cogl_blit_framebuffer (view_framebuffer,
-                                  framebuffer,
-                                  0, 0,
-                                  x, y,
-                                  cogl_framebuffer_get_width (view_framebuffer),
-                                  cogl_framebuffer_get_height (view_framebuffer),
-                                  error))
-        return FALSE;
+      scanout = clutter_stage_view_peek_scanout (view);
+      if (scanout)
+        {
+          if (!cogl_scanout_blit_to_framebuffer (scanout,
+                                                 framebuffer,
+                                                 x, y,
+                                                 error))
+            return FALSE;
+        }
+      else
+        {
+          view_framebuffer = clutter_stage_view_get_framebuffer (view);
+          if (!cogl_blit_framebuffer (view_framebuffer,
+                                      framebuffer,
+                                      0, 0,
+                                      x, y,
+                                      cogl_framebuffer_get_width (view_framebuffer),
+                                      cogl_framebuffer_get_height (view_framebuffer),
+                                      error))
+            return FALSE;
+        }
     }
 
   cogl_framebuffer_finish (framebuffer);


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