content/common/gpu/media/exynos_v4l2_video_device.h

   1 // Copyright 2014 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 // This file contains the implementation of ExynosV4L2Device used on
   6 // Exynos platform.
   7
   8 #ifndef CONTENT_COMMON_GPU_MEDIA_EXYNOS_V4L2_VIDEO_DEVICE_H_
   9 #define CONTENT_COMMON_GPU_MEDIA_EXYNOS_V4L2_VIDEO_DEVICE_H_
  10
  11 #include "content/common/gpu/media/v4l2_video_device.h"
  12
  13 namespace content {
  14
  15 class ExynosV4L2Device : public V4L2Device {
  16  public:
  17   explicit ExynosV4L2Device(Type type);
  18   virtual ~ExynosV4L2Device();
  19
  20   // V4L2Device implementation.
  21   virtual int Ioctl(int request, void* arg) OVERRIDE;
  22   virtual bool Poll(bool poll_device, bool* event_pending) OVERRIDE;
  23   virtual bool SetDevicePollInterrupt() OVERRIDE;
  24   virtual bool ClearDevicePollInterrupt() OVERRIDE;
  25   virtual void* Mmap(void* addr,
  26                      unsigned int len,
  27                      int prot,
  28                      int flags,
  29                      unsigned int offset) OVERRIDE;
  30   virtual void Munmap(void* addr, unsigned int len) OVERRIDE;
  31   virtual bool Initialize() OVERRIDE;
  32   virtual EGLImageKHR CreateEGLImage(EGLDisplay egl_display,
  33                                      EGLContext egl_context,
  34                                      GLuint texture_id,
  35                                      gfx::Size frame_buffer_size,
  36                                      unsigned int buffer_index,
  37                                      size_t planes_count) OVERRIDE;
  38   virtual EGLBoolean DestroyEGLImage(EGLDisplay egl_display,
  39                                      EGLImageKHR egl_image) OVERRIDE;
  40   virtual GLenum GetTextureTarget() OVERRIDE;
  41   virtual uint32 PreferredInputFormat() OVERRIDE;
  42   virtual uint32 PreferredOutputFormat() OVERRIDE;
  43
  44  private:
  45   const Type type_;
  46
  47   // The actual device fd.
  48   int device_fd_;
  49
  50   // eventfd fd to signal device poll thread when its poll() should be
  51   // interrupted.
  52   int device_poll_interrupt_fd_;
  53
  54   DISALLOW_COPY_AND_ASSIGN(ExynosV4L2Device);
  55 };
  56 }  //  namespace content
  57
  58 #endif  // CONTENT_COMMON_GPU_MEDIA_EXYNOS_V4L2_VIDEO_DEVICE_H_