gfx/thebes/nsSurfaceTexture.h

   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/. */
   6
   7 #ifndef nsSurfaceTexture_h__
   8 #define nsSurfaceTexture_h__
   9 #ifdef MOZ_WIDGET_ANDROID
  10
  11 #include <jni.h>
  12 #include "nsIRunnable.h"
  13 #include "gfxPlatform.h"
  14 #include "gfx3DMatrix.h"
  15 #include "GLDefs.h"
  16
  17 class gfxASurface;
  18
  19 /**
  20  * This class is a wrapper around Android's SurfaceTexture class.
  21  * Usage is pretty much exactly like the Java class, so see
  22  * the Android documentation for details.
  23  */
  24 class nsSurfaceTexture {
  25   NS_INLINE_DECL_THREADSAFE_REFCOUNTING(nsSurfaceTexture)
  26
  27 public:
  28   static nsSurfaceTexture* Create(GLuint aTexture);
  29   static nsSurfaceTexture* Find(int id);
  30
  31   // Returns with reasonable certainty whether or not we'll
  32   // be able to create and use a SurfaceTexture
  33   static bool Check();
  34
  35   ~nsSurfaceTexture();
  36
  37   // This is an ANativeWindow. Use AndroidBridge::LockWindow and
  38   // friends for manipulating it.
  39   void* GetNativeWindow();
  40
  41   // This attaches the updated data to the TEXTURE_EXTERNAL target
  42   void UpdateTexImage();
  43
  44   bool GetTransformMatrix(gfx3DMatrix& aMatrix);
  45   int ID() { return mID; }
  46
  47   // The callback is guaranteed to be called on the main thread even
  48   // if the upstream callback is received on a different thread
  49   void SetFrameAvailableCallback(nsIRunnable* aRunnable);
  50
  51   // Only should be called by AndroidJNI when we get a
  52   // callback from the underlying SurfaceTexture instance
  53   void NotifyFrameAvailable();
  54 private:
  55   nsSurfaceTexture();
  56
  57   bool Init(GLuint aTexture);
  58
  59   jobject mSurfaceTexture;
  60   void* mNativeWindow;
  61   int mID;
  62   nsRefPtr<nsIRunnable> mFrameAvailableCallback;
  63 };
  64
  65 #endif
  66 #endif