Bug 3515073 Add ANativeWindow_fromSurfaceTexture

This is similar to ANativeWindow_fromSurface.

Change-Id: Iaadc06a5d0d50685c34876aa89488c16e7cfaa65

2 files changed, 17 insertions, 0 deletions

diff --git a/native/android/native_window.cpp b/native/android/native_window.cpp
index 7f92eec..219cd196 100644
--- a/native/android/native_window.cpp
+++ b/native/android/native_window.cpp
@@ -20,6 +20,7 @@
 #include <android/native_window_jni.h>
 #include <surfaceflinger/Surface.h>
 #include <android_runtime/android_view_Surface.h>
+#include <android_runtime/android_graphics_SurfaceTexture.h>
 
 using namespace android;
 
@@ -31,6 +32,14 @@ ANativeWindow* ANativeWindow_fromSurface(JNIEnv* env, jobject surface) {
     return win.get();
 }
 
+ANativeWindow* ANativeWindow_fromSurfaceTexture(JNIEnv* env, jobject surfaceTexture) {
+    sp<ANativeWindow> win = android_SurfaceTexture_getNativeWindow(env, surfaceTexture);
+    if (win != NULL) {
+        win->incStrong((void*)ANativeWindow_acquire);
+    }
+    return win.get();
+}
+
 void ANativeWindow_acquire(ANativeWindow* window) {
     window->incStrong((void*)ANativeWindow_acquire);
 }
diff --git a/native/include/android/native_window_jni.h b/native/include/android/native_window_jni.h
index b9e72ef..408c263 100644
--- a/native/include/android/native_window_jni.h
+++ b/native/include/android/native_window_jni.h
@@ -33,6 +33,14 @@ extern "C" {
  */
 ANativeWindow* ANativeWindow_fromSurface(JNIEnv* env, jobject surface);
 
+/**
+ * Return the ANativeWindow associated with a Java SurfaceTexture object,
+ * for interacting with it through native code.  This acquires a reference
+ * on the ANativeWindow that is returned; be sure to use ANativeWindow_release()
+ * when done with it so that it doesn't leak.
+ */
+ANativeWindow* ANativeWindow_fromSurfaceTexture(JNIEnv* env, jobject surfaceTexture);
+
 #ifdef __cplusplus
 };
 #endif