Reduce the amount of thread switches needed for fetching textures

Combine multiple texture fetches into a single sync call on another
thread.

Change-Id: Id372d5a11290105b36b34a4fc56bff9929304c20
Reviewed-by: Jüri Valdmann <juri.valdmann@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/core/delegated_frame_node.h b/src/core/delegated_frame_node.h
index c627cdf95..4bddf4a62 100644
--- a/src/core/delegated_frame_node.h
+++ b/src/core/delegated_frame_node.h
@@ -123,7 +123,9 @@ private:
     // Making those callbacks static bypasses base::Bind's ref-counting requirement
     // of the this pointer when the callback is a method.
     static void pullTexture(DelegatedFrameNode *frameNode, MailboxTexture *mailbox);
+    static void pullTextures(DelegatedFrameNode *frameNode, const QVector<MailboxTexture *> mailboxes);
     static void fenceAndUnlockQt(DelegatedFrameNode *frameNode);
+    static void unlockQt(DelegatedFrameNode *frameNode);
 
     ResourceHolder *findAndHoldResource(unsigned resourceId, QHash<unsigned, QSharedPointer<ResourceHolder> > &candidates);
     void holdResources(const cc::DrawQuad *quad, QHash<unsigned, QSharedPointer<ResourceHolder> > &candidates);