widget/gonk/libdisplay/GonkDisplay.h

   1 /* Copyright 2013 Mozilla Foundation and Mozilla contributors
   2  *
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15
  16 #ifndef GONKDISPLAY_H
  17 #define GONKDISPLAY_H
  18
  19 #include <system/window.h>
  20
  21 namespace mozilla {
  22
  23 namespace layers {
  24 class Layer;
  25 }
  26
  27 typedef void * EGLDisplay;
  28 typedef void * EGLSurface;
  29
  30 class GonkDisplay {
  31 public:
  32     virtual ANativeWindow* GetNativeWindow() = 0;
  33
  34     virtual void SetEnabled(bool enabled) = 0;
  35
  36     typedef void (*OnEnabledCallbackType)(bool enabled);
  37
  38     virtual void OnEnabled(OnEnabledCallbackType callback) = 0;
  39
  40     virtual void* GetHWCDevice() = 0;
  41
  42     virtual void* GetFBSurface() = 0;
  43
  44     virtual bool SwapBuffers(EGLDisplay dpy, EGLSurface sur) = 0;
  45
  46     virtual ANativeWindowBuffer* DequeueBuffer() = 0;
  47
  48     virtual bool QueueBuffer(ANativeWindowBuffer* buf) = 0;
  49
  50     virtual void UpdateFBSurface(EGLDisplay dpy, EGLSurface sur) = 0;
  51
  52     virtual void SetFBReleaseFd(int fd) = 0;
  53
  54     virtual int GetPrevFBAcquireFd() = 0;
  55
  56     float xdpi;
  57     uint32_t surfaceformat;
  58 };
  59
  60 __attribute__ ((weak))
  61 GonkDisplay* GetGonkDisplay();
  62
  63 }
  64 #endif /* GONKDISPLAY_H */