widget/android/AndroidGraphicBuffer.h
author Martin Stransky <stransky@redhat.com>
Thu, 01 Feb 2018 13:56:15 +0100
changeset 750088 c8b0466bc1d0f3c2ed42a71ce127c36c9185477f
parent 258511 7f2cb4c27f48b2afcdf78c711eb11eae36bf0db3
child 489668 cbb8fdf1daf98a15f7d57f6b08d273bdf96aa1a0
child 694109 98e2b4ee9775a2a2b5cc1bb8a390bfe901814f38
permissions -rw-r--r--
Bug 1434565 - Put some meanigful timestamp to nsRemoteService::HandleCommandLine(), r?jhorak We need to put a timestamp to nsRemoteService::HandleCommandLine() to allow Gtk+ focus opened Firefox window. Unfortunately we don't have much choice how to get the timestamp at DBUS remote service so ask for gtk_get_current_event_time() and when GDK_CURRENT_TIME is returned (it means we don't have the timestamp) use g_get_monotonic_time() as well as at nsWindow::GetEventTimeStamp(). MozReview-Commit-ID: 9ilVZ0kPe3x

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef AndroidGraphicBuffer_h_
#define AndroidGraphicBuffer_h_

#include "gfxTypes.h"
#include "nsRect.h"

typedef void* EGLImageKHR;
typedef void* EGLClientBuffer;

namespace mozilla {

/**
 * This class allows access to Android's direct texturing mechanism. Locking
 * the buffer gives you a pointer you can read/write to directly. It is fully
 * threadsafe, but you probably really want to use the AndroidDirectTexture
 * class which will handle double buffering.
 *
 * In order to use the buffer in OpenGL, just call Bind() and it will attach
 * to whatever texture is bound to GL_TEXTURE_2D.
 */
class AndroidGraphicBuffer
{
public:
  enum {
    UsageSoftwareRead = 1,
    UsageSoftwareWrite = 1 << 1,
    UsageTexture = 1 << 2,
    UsageTarget = 1 << 3,
    Usage2D = 1 << 4
  };

  AndroidGraphicBuffer(uint32_t width, uint32_t height, uint32_t usage, gfxImageFormat format);
  virtual ~AndroidGraphicBuffer();

  int Lock(uint32_t usage, unsigned char **bits);
  int Lock(uint32_t usage, const nsIntRect& rect, unsigned char **bits);
  int Unlock();
  bool Reallocate(uint32_t aWidth, uint32_t aHeight, gfxImageFormat aFormat);

  uint32_t Width() { return mWidth; }
  uint32_t Height() { return mHeight; }

  bool Bind();

  static bool IsBlacklisted();

private:
  uint32_t mWidth;
  uint32_t mHeight;
  uint32_t mUsage;
  gfxImageFormat mFormat;

  bool EnsureInitialized();
  bool EnsureEGLImage();

  void DestroyBuffer();
  bool EnsureBufferCreated();

  uint32_t GetAndroidUsage(uint32_t aUsage);
  uint32_t GetAndroidFormat(gfxImageFormat aFormat);

  void *mHandle;
  void *mEGLImage;
};

} /* mozilla */
#endif /* AndroidGraphicBuffer_h_ */