BufferQueue: handle consumer driven size for pre-rotation

This change adds an option for the producer to set auto pre-rotation on the
buffers to be allocated. When auto pre-rotation is enabled, if the current
buffer size is driven by the consumer and there's 90 or 270 degree rotation
specified in the transform hint currently used by the producer, then the
dimension of the buffers to be allocated will be additionally swapped upon
buffers pre-allocaton or dequeueBuffer.

Auto prerotaion will be cached at Surface producer side, and will be
reset to false upon Surface disconnection.

Bug: 129422697
Test: atest libgui_test:SurfaceTest#DequeueWithConsumerDrivenSize

Change-Id: I01ddf3e00d5951935e557d18932ea9869f36b5d6

1 files changed, 29 insertions, 0 deletions

diff --git a/libs/gui/IGraphicBufferProducer.cpp b/libs/gui/IGraphicBufferProducer.cpp
index 0e03b7d393..0b8c70525b 100644
--- a/libs/gui/IGraphicBufferProducer.cpp
+++ b/libs/gui/IGraphicBufferProducer.cpp
@@ -73,6 +73,7 @@ enum {
     GET_UNIQUE_ID,
     GET_CONSUMER_USAGE,
     SET_LEGACY_BUFFER_DROP,
+    SET_AUTO_PREROTATION,
 };
 
 class BpGraphicBufferProducer : public BpInterface<IGraphicBufferProducer>
@@ -547,6 +548,17 @@ public:
         }
         return actualResult;
     }
+
+    virtual status_t setAutoPrerotation(bool autoPrerotation) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor());
+        data.writeBool(autoPrerotation);
+        status_t result = remote()->transact(SET_AUTO_PREROTATION, data, &reply);
+        if (result == NO_ERROR) {
+            result = reply.readInt32();
+        }
+        return result;
+    }
 };
 
 // Out-of-line virtual method definition to trigger vtable emission in this
@@ -675,6 +687,10 @@ public:
     status_t getConsumerUsage(uint64_t* outUsage) const override {
         return mBase->getConsumerUsage(outUsage);
     }
+
+    status_t setAutoPrerotation(bool autoPrerotation) override {
+        return mBase->setAutoPrerotation(autoPrerotation);
+    }
 };
 
 IMPLEMENT_HYBRID_META_INTERFACE(GraphicBufferProducer,
@@ -688,6 +704,12 @@ status_t IGraphicBufferProducer::setLegacyBufferDrop(bool drop) {
     return INVALID_OPERATION;
 }
 
+status_t IGraphicBufferProducer::setAutoPrerotation(bool autoPrerotation) {
+    // No-op for IGBP other than BufferQueue.
+    (void)autoPrerotation;
+    return INVALID_OPERATION;
+}
+
 status_t IGraphicBufferProducer::exportToParcel(Parcel* parcel) {
     status_t res = OK;
     res = parcel->writeUint32(USE_BUFFER_QUEUE);
@@ -1050,6 +1072,13 @@ status_t BnGraphicBufferProducer::onTransact(
             reply->writeInt32(result);
             return NO_ERROR;
         }
+        case SET_AUTO_PREROTATION: {
+            CHECK_INTERFACE(IGraphicBuffer, data, reply);
+            bool autoPrerotation = data.readBool();
+            status_t result = setAutoPrerotation(autoPrerotation);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        }
     }
     return BBinder::onTransact(code, data, reply, flags);
 }