libgui: Add getConsumerName

Adds a getConsumerName method to IGraphicBufferProducer and Surface.
Currently, the name is cached inside of IGBP and is updated on connect
and dequeueBuffer, which should be good enough for most uses.

Bug: 6667401
Change-Id: Ife94bd89023fe7c00bad916932b9a19233fd2290

3 files changed, 9 insertions, 0 deletions

diff --git a/include/gui/BufferQueueProducer.h b/include/gui/BufferQueueProducer.h
index afa7eb1..9754a89 100644
--- a/include/gui/BufferQueueProducer.h
+++ b/include/gui/BufferQueueProducer.h
@@ -178,6 +178,9 @@ public:
     // See IGraphicBufferProducer::setGenerationNumber
     virtual status_t setGenerationNumber(uint32_t generationNumber);
 
+    // See IGraphicBufferProducer::getConsumerName
+    virtual String8 getConsumerName() const override;
+
 private:
     // This is required by the IBinder::DeathRecipient interface
     virtual void binderDied(const wp<IBinder>& who);
diff --git a/include/gui/IGraphicBufferProducer.h b/include/gui/IGraphicBufferProducer.h
index 4ca4cd5..9530de1 100644
--- a/include/gui/IGraphicBufferProducer.h
+++ b/include/gui/IGraphicBufferProducer.h
@@ -480,6 +480,9 @@ public:
     // affected and will retain their current generation number. The generation
     // number defaults to 0.
     virtual status_t setGenerationNumber(uint32_t generationNumber) = 0;
+
+    // Returns the name of the connected consumer.
+    virtual String8 getConsumerName() const = 0;
 };
 
 // ----------------------------------------------------------------------------
diff --git a/include/gui/Surface.h b/include/gui/Surface.h
index 261b07c..72f1067 100644
--- a/include/gui/Surface.h
+++ b/include/gui/Surface.h
@@ -106,6 +106,9 @@ public:
      * See IGBP::setGenerationNumber for more information. */
     status_t setGenerationNumber(uint32_t generationNumber);
 
+    // See IGraphicBufferProducer::getConsumerName
+    String8 getConsumerName() const;
+
 protected:
     virtual ~Surface();