Revert "Update documentation for DISPLAY_DECORATION"
Revert "Add/plumb SurfaceControl.DISPLAY_DECORATION"
Revert "Add eLayerIsDisplayDecoration flag"
Revert submission 16511727-wm_DISPLAY_DECORATION
Reason for revert: b/211835607
Reverted Changes:
I1da3199ba:Allow changing composition from DISPLAY_DECORATION...
I1fae74b36:Update documentation for DISPLAY_DECORATION
I1da03a88f:Add eLayerIsDisplayDecoration flag
I7f22dfd03:Add/plumb SurfaceControl.DISPLAY_DECORATION
Change-Id: I7238bcc96325873ec7dbdd42894192c48e7cf92e
diff --git a/graphics/composer/aidl/android/hardware/graphics/composer3/Composition.aidl b/graphics/composer/aidl/android/hardware/graphics/composer3/Composition.aidl
index 49cdffc..4947463 100644
--- a/graphics/composer/aidl/android/hardware/graphics/composer3/Composition.aidl
+++ b/graphics/composer/aidl/android/hardware/graphics/composer3/Composition.aidl
@@ -74,20 +74,16 @@
*/
SIDEBAND = 5,
/**
- * A display decoration layer contains a buffer which is used to provide
+ * A display decoration layer contains a buffer which is an 8 bit
+ * alpha mask. Pixels in the mask with an alpha of 0 (transparent) will
+ * show the content underneath, and pixels with an alpha of 255 will be
+ * be rendered in black. An alpha in between will show the content
+ * blended with black. This is useful, for example, to provide
* anti-aliasing on the cutout region/rounded corners on the top and
* bottom of a display.
*
- * Pixels in the buffer with an alpha of 0 (transparent) will show the
- * content underneath, and pixels with an alpha of 255 will be rendered in
- * black. An alpha in between will show the underlying content blended with
- * black.
- *
- * Some devices may support this flag with a buffer containing an 8 bit
- * alpha mask.
- *
* Upon validateDisplay, the device may request a change from this type
- * to either DEVICE or CLIENT.
+ * to CLIENT.
*/
DISPLAY_DECORATION = 6,
}