composer: add seamlessPossible callback to composer 2.4
Add a callback to notify the client it should retry a
setActiveConfigWithConstraints call in case of SEAMLESS_NOT_POSSIBLE error.
Test: rev up composer to 2.4
Bug: 141329414
Change-Id: I6176638fde937e3916f58cc577d50cb755997c61
diff --git a/graphics/composer/2.4/IComposerClient.hal b/graphics/composer/2.4/IComposerClient.hal
index 06b4c5e..1b8170b 100644
--- a/graphics/composer/2.4/IComposerClient.hal
+++ b/graphics/composer/2.4/IComposerClient.hal
@@ -185,6 +185,9 @@
* share the same config group as the current config.
* SEAMLESS_NOT_POSSIBLE when seamlessRequired was true but the display cannot achieve
* the vsync period change without a noticeable visual artifact.
+ * When the conditions change and it may be possible to change
+ * the vsync period seamlessly, onSeamlessPossible callback
+ * must be called to indicate that caller should retry.
* @return timeline is the timeline for the vsync period change.
*/
setActiveConfigWithConstraints(Display display, Config config,