The Tor Browser: gfx/thebes/nsSurfaceTexture.h@97036ab72558

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 // vim:set ts=2 sts=2 sw=2 et cin:

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 #ifndef nsSurfaceTexture_h__

     8 #define nsSurfaceTexture_h__

     9 #ifdef MOZ_WIDGET_ANDROID

    11 #include <jni.h>

    12 #include "nsIRunnable.h"

    13 #include "gfxPlatform.h"

    14 #include "GLDefs.h"

    16 namespace mozilla {

    17 namespace gfx {

    18 class Matrix4x4;

    19 }

    20 }

    22 /**

    23  * This class is a wrapper around Android's SurfaceTexture class.

    24  * Usage is pretty much exactly like the Java class, so see

    25  * the Android documentation for details.

    26  */

    27 class nsSurfaceTexture MOZ_FINAL {

    28   NS_INLINE_DECL_THREADSAFE_REFCOUNTING(nsSurfaceTexture)

    30 public:

    31   static nsSurfaceTexture* Create(GLuint aTexture);

    32   static nsSurfaceTexture* Find(int id);

    34   // Returns with reasonable certainty whether or not we'll

    35   // be able to create and use a SurfaceTexture

    36   static bool Check();

    38   // This is an ANativeWindow. Use AndroidBridge::LockWindow and

    39   // friends for manipulating it.

    40   void* GetNativeWindow();

    42   // This attaches the updated data to the TEXTURE_EXTERNAL target

    43   void UpdateTexImage();

    45   bool GetTransformMatrix(mozilla::gfx::Matrix4x4& aMatrix);

    46   int ID() { return mID; }

    48   // The callback is guaranteed to be called on the main thread even

    49   // if the upstream callback is received on a different thread

    50   void SetFrameAvailableCallback(nsIRunnable* aRunnable);

    52   // Only should be called by AndroidJNI when we get a

    53   // callback from the underlying SurfaceTexture instance

    54   void NotifyFrameAvailable();

    55 private:

    56   nsSurfaceTexture();

    58   // Private destructor, to discourage deletion outside of Release():

    59   ~nsSurfaceTexture();

    61   bool Init(GLuint aTexture);

    63   jobject mSurfaceTexture;

    64   void* mNativeWindow;

    65   int mID;

    66   nsRefPtr<nsIRunnable> mFrameAvailableCallback;

    67 };

    69 #endif

    70 #endif

The Tor Browser / file revision

gfx/thebes/nsSurfaceTexture.h@97036ab72558

gfx/thebes/nsSurfaceTexture.h