src/ppapi/cpp/dev/video_capture_client_dev.cc

   1 // Copyright (c) 2011 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 #include "ppapi/cpp/dev/video_capture_client_dev.h"
   6
   7 #include "ppapi/c/dev/ppp_video_capture_dev.h"
   8 #include "ppapi/cpp/instance.h"
   9 #include "ppapi/cpp/instance_handle.h"
  10 #include "ppapi/cpp/module.h"
  11
  12 namespace pp {
  13
  14 namespace {
  15
  16 const char kPPPVideoCaptureInterface[] = PPP_VIDEO_CAPTURE_DEV_INTERFACE;
  17
  18 void OnDeviceInfo(PP_Instance instance,
  19                   PP_Resource resource,
  20                   const struct PP_VideoCaptureDeviceInfo_Dev* info,
  21                   uint32_t buffer_count,
  22                   const PP_Resource buffers[]) {
  23   VideoCaptureClient_Dev* client = static_cast<VideoCaptureClient_Dev*>(
  24       Instance::GetPerInstanceObject(instance, kPPPVideoCaptureInterface));
  25   if (!client)
  26     return;
  27
  28   std::vector<Buffer_Dev> buffer_list;
  29   buffer_list.reserve(buffer_count);
  30   for (uint32_t i = 0; i < buffer_count; ++i)
  31     buffer_list.push_back(Buffer_Dev(buffers[i]));
  32
  33   client->OnDeviceInfo(resource, *info, buffer_list);
  34 }
  35
  36 void OnStatus(PP_Instance instance, PP_Resource resource, uint32_t status) {
  37   VideoCaptureClient_Dev* client = static_cast<VideoCaptureClient_Dev*>(
  38       Instance::GetPerInstanceObject(instance, kPPPVideoCaptureInterface));
  39   if (client)
  40     client->OnStatus(resource, status);
  41 }
  42
  43 void OnError(PP_Instance instance, PP_Resource resource, uint32_t error_code) {
  44   VideoCaptureClient_Dev* client = static_cast<VideoCaptureClient_Dev*>(
  45       Instance::GetPerInstanceObject(instance, kPPPVideoCaptureInterface));
  46   if (client)
  47     client->OnError(resource, error_code);
  48 }
  49
  50 void OnBufferReady(PP_Instance instance,
  51                    PP_Resource resource,
  52                    uint32_t buffer) {
  53   VideoCaptureClient_Dev* client = static_cast<VideoCaptureClient_Dev*>(
  54       Instance::GetPerInstanceObject(instance, kPPPVideoCaptureInterface));
  55   if (client)
  56     client->OnBufferReady(resource, buffer);
  57 }
  58
  59 PPP_VideoCapture_Dev ppp_video_capture = {
  60   OnDeviceInfo,
  61   OnStatus,
  62   OnError,
  63   OnBufferReady
  64 };
  65
  66 }  // namespace
  67
  68 VideoCaptureClient_Dev::VideoCaptureClient_Dev(Instance* instance)
  69     : instance_(instance) {
  70   Module::Get()->AddPluginInterface(kPPPVideoCaptureInterface,
  71                                     &ppp_video_capture);
  72   instance->AddPerInstanceObject(kPPPVideoCaptureInterface, this);
  73 }
  74
  75 VideoCaptureClient_Dev::~VideoCaptureClient_Dev() {
  76   Instance::RemovePerInstanceObject(instance_,
  77                                     kPPPVideoCaptureInterface, this);
  78 }
  79
  80 }  // namespace pp