| 1 | // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | package org.chromium.ui.gfx; |
| 6 | |
| 7 | import android.graphics.SurfaceTexture; |
| 8 | |
| 9 | import org.chromium.base.CalledByNative; |
| 10 | import org.chromium.base.JNINamespace; |
| 11 | |
| 12 | /** |
| 13 | * Listener to an android SurfaceTexture object for frame availability. |
| 14 | */ |
| 15 | @JNINamespace("gfx") |
| 16 | class SurfaceTextureListener implements SurfaceTexture.OnFrameAvailableListener { |
| 17 | // Used to determine the class instance to dispatch the native call to. |
| 18 | private int mNativeSurfaceTextureListener = 0; |
| 19 | |
| 20 | private SurfaceTextureListener(int nativeSurfaceTextureListener) { |
| 21 | assert nativeSurfaceTextureListener != 0; |
| 22 | mNativeSurfaceTextureListener = nativeSurfaceTextureListener; |
| 23 | } |
| 24 | |
| 25 | @Override |
| 26 | public void onFrameAvailable(SurfaceTexture surfaceTexture) { |
| 27 | nativeFrameAvailable(mNativeSurfaceTextureListener); |
| 28 | } |
| 29 | |
| 30 | @Override |
| 31 | protected void finalize() throws Throwable { |
| 32 | try { |
| 33 | nativeDestroy(mNativeSurfaceTextureListener); |
| 34 | } finally { |
| 35 | super.finalize(); |
| 36 | } |
| 37 | } |
| 38 | |
| 39 | @CalledByNative |
| 40 | private static SurfaceTextureListener create(int nativeSurfaceTextureListener) { |
| 41 | return new SurfaceTextureListener(nativeSurfaceTextureListener); |
| 42 | } |
| 43 | |
| 44 | private native void nativeFrameAvailable(int nativeSurfaceTextureListener); |
| 45 | private native void nativeDestroy(int nativeSurfaceTextureListener); |
| 46 | } |