// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

module arc;

struct MojoDeviceInfo {
  string device_path@0;
  string usb_vid@1;
  string usb_pid@2;
  [MinVersion=1] uint32 lens_facing@3;
  [MinVersion=1] int32 sensor_orientation@4;
  [MinVersion=1] uint32 frames_to_skip_after_streamon@5;
  [MinVersion=1] float horizontal_view_angle_16_9@6;
  [MinVersion=1] float horizontal_view_angle_4_3@7;
  [MinVersion=1] array<float>? lens_info_available_focal_lengths@8;
  [MinVersion=1] float lens_info_minimum_focus_distance@9;
  [MinVersion=1] float lens_info_optimal_focus_distance@10;
  [MinVersion=1] float vertical_view_angle_16_9@11;
  [MinVersion=1] float vertical_view_angle_4_3@12;
};

struct MojoSupportedFormat {
  uint32 width;
  uint32 height;
  uint32 fourcc;
  array<float> frameRates;
};

interface ArcCameraService {
  Connect@0(string device_path) => (int32 result);
  Disconnect@1() => ();
  StreamOn@2(uint32 width, uint32 height, uint32 pixel_format, float frame_rate)
      => (array<handle> fds, uint32 buffer_size, int32 result);
  StreamOff@3() => (int32 result);
  GetNextFrameBuffer@4() => (uint32 buffer_id, uint32 data_size, int32 result);
  ReuseFrameBuffer@5(uint32 buffer_id) => (int32 result);
  GetDeviceSupportedFormats@6(string device_path)
      => (array<MojoSupportedFormat> supported_formats);
  GetCameraDeviceInfos@7() => (array<MojoDeviceInfo> device_infos);
};

interface ArcCameraInstance {
};