SurfaceTextureClient: Add ISurfaceTexture getter.

This change adds a getter method to SurfaceTextureClient to get the
ISurfaceTexture object with which the SurfaceTextureClient is
communicating.

Bug: 4086509
Change-Id: Ifec621e0fe5392a5be56b2348fdc54067cbebcdd

3 files changed, 11 insertions, 0 deletions

diff --git a/include/gui/SurfaceTextureClient.h b/include/gui/SurfaceTextureClient.h
index 4cdece99ec..7992105df2 100644
--- a/include/gui/SurfaceTextureClient.h
+++ b/include/gui/SurfaceTextureClient.h
@@ -33,6 +33,8 @@ class SurfaceTextureClient
 public:
     SurfaceTextureClient(const sp<ISurfaceTexture>& surfaceTexture);
 
+    sp<ISurfaceTexture> getISurfaceTexture() const;
+
 private:
 
     // can't be copied
diff --git a/libs/gui/SurfaceTextureClient.cpp b/libs/gui/SurfaceTextureClient.cpp
index 111141f4a5..7f1d9cbf22 100644
--- a/libs/gui/SurfaceTextureClient.cpp
+++ b/libs/gui/SurfaceTextureClient.cpp
@@ -40,6 +40,10 @@ SurfaceTextureClient::SurfaceTextureClient(
     mAllocator = mSurfaceTexture->getAllocator();
 }
 
+sp<ISurfaceTexture> SurfaceTextureClient::getISurfaceTexture() const {
+    return mSurfaceTexture;
+}
+
 int SurfaceTextureClient::setSwapInterval(ANativeWindow* window, int interval) {
     SurfaceTextureClient* c = getSelf(window);
     return c->setSwapInterval(interval);
diff --git a/libs/gui/tests/SurfaceTextureClient_test.cpp b/libs/gui/tests/SurfaceTextureClient_test.cpp
index 359b71c821..25109f6cbf 100644
--- a/libs/gui/tests/SurfaceTextureClient_test.cpp
+++ b/libs/gui/tests/SurfaceTextureClient_test.cpp
@@ -35,6 +35,11 @@ protected:
     sp<SurfaceTextureClient> mSTC;
 };
 
+TEST_F(SurfaceTextureClientTest, GetISurfaceTextureIsNotNull) {
+    sp<ISurfaceTexture> ist(mSTC->getISurfaceTexture());
+    ASSERT_TRUE(ist != NULL);
+}
+
 TEST_F(SurfaceTextureClientTest, QueuesToWindowCompositorIsFalse) {
     sp<ANativeWindow> anw(mSTC);
     int result = -123;