New NDK APIs for SurfaceTexture
These native APIs give access to most SurfaceTexture
java APIs from native code.
Test: Manual
Change-Id: I8df3e1d16c68e22176876c485f591ad74b23a14c
diff --git a/include/android/surface_texture_jni.h b/include/android/surface_texture_jni.h
new file mode 100644
index 0000000..b0e1edd
--- /dev/null
+++ b/include/android/surface_texture_jni.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup SurfaceTexture
+ * @{
+ */
+
+/**
+ * @file surface_texture_jni.h
+ */
+
+#ifndef ANDROID_NATIVE_SURFACE_TEXTURE_JNI_H
+#define ANDROID_NATIVE_SURFACE_TEXTURE_JNI_H
+
+#include <android/surface_texture.h>
+
+#include <jni.h>
+
+__BEGIN_DECLS
+
+/**
+ * Get a reference to the native ASurfaceTexture from the corresponding java object.
+ *
+ * The caller must keep a reference to the Java SurfaceTexture during the lifetime of the returned
+ * ASurfaceTexture. Failing to do so could result in the ASurfaceTexture to stop functioning
+ * properly once the Java object gets finalized.
+ * However, this will not result in program termination.
+ *
+ * \param env JNI environment
+ * \param surfacetexture Instance of Java SurfaceTexture object
+ * \return native ASurfaceTexture reference or nullptr if the java object is not a SurfaceTexture.
+ * The returned reference MUST BE released when it's no longer needed using
+ * ASurfaceTexture_release().
+ */
+ASurfaceTexture* ASurfaceTexture_fromSurfaceTexture(JNIEnv* env, jobject surfacetexture);
+
+__END_DECLS
+
+#endif /* ANDROID_NATIVE_SURFACE_TEXTURE_JNI_H */