blast: [FIXED] create SurfaceControl from Surface parent

Create a child SurfaceControl from a parent Surface. This is done
by sending the parent IGBP to SurfaceFlinger who gets the parent
Layer information.

This is change is necessary for public SurfaceControl because
createScopedConnection is deprecated.

[Previous version used Layer::mStateMutex which was removed hours
 before this patch went in. Presubmit did not catch the conflict
 so the patch was immediately reverted. This version does not have
 that conflict.]

Test: atest CtsViewTestCases:android.view.cts.ASurfaceControlTest
Bug: 80477568
Change-Id: Ibbfb2851ff71c21cce1761cab434b85735e35515

1 files changed, 20 insertions, 0 deletions

diff --git a/services/surfaceflinger/Client.cpp b/services/surfaceflinger/Client.cpp
index 4f6fb1cca6..0e447d87f2 100644
--- a/services/surfaceflinger/Client.cpp
+++ b/services/surfaceflinger/Client.cpp
@@ -95,6 +95,26 @@ status_t Client::createSurface(
                                  ownerUid, handle, gbp, &parent);
 }
 
+status_t Client::createWithSurfaceParent(const String8& name, uint32_t w, uint32_t h,
+                                         PixelFormat format, uint32_t flags,
+                                         const sp<IGraphicBufferProducer>& parent,
+                                         int32_t windowType, int32_t ownerUid, sp<IBinder>* handle,
+                                         sp<IGraphicBufferProducer>* gbp) {
+    if (mFlinger->authenticateSurfaceTexture(parent) == false) {
+        return BAD_VALUE;
+    }
+
+    const auto& layer = (static_cast<MonitoredProducer*>(parent.get()))->getLayer();
+    if (layer == nullptr) {
+        return BAD_VALUE;
+    }
+
+    sp<IBinder> parentHandle = layer->getHandle();
+
+    return createSurface(name, w, h, format, flags, parentHandle, windowType, ownerUid, handle,
+                         gbp);
+}
+
 status_t Client::clearLayerFrameStats(const sp<IBinder>& handle) const {
     sp<Layer> layer = getLayerUser(handle);
     if (layer == nullptr) {