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      1 // Copyright (c) 2012 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_dev.h"
      6 
      7 #include "ppapi/c/dev/ppb_video_capture_dev.h"
      8 #include "ppapi/c/pp_errors.h"
      9 #include "ppapi/cpp/instance_handle.h"
     10 #include "ppapi/cpp/module_impl.h"
     11 
     12 namespace pp {
     13 
     14 namespace {
     15 
     16 template <> const char* interface_name<PPB_VideoCapture_Dev_0_3>() {
     17   return PPB_VIDEOCAPTURE_DEV_INTERFACE_0_3;
     18 }
     19 
     20 }  // namespace
     21 
     22 VideoCapture_Dev::VideoCapture_Dev(const InstanceHandle& instance) {
     23   if (has_interface<PPB_VideoCapture_Dev_0_3>()) {
     24     PassRefFromConstructor(get_interface<PPB_VideoCapture_Dev_0_3>()->Create(
     25         instance.pp_instance()));
     26   }
     27 }
     28 
     29 VideoCapture_Dev::VideoCapture_Dev(PP_Resource resource)
     30     : Resource(resource) {
     31 }
     32 
     33 VideoCapture_Dev::~VideoCapture_Dev() {
     34 }
     35 
     36 // static
     37 bool VideoCapture_Dev::IsAvailable() {
     38   return has_interface<PPB_VideoCapture_Dev_0_3>();
     39 }
     40 
     41 int32_t VideoCapture_Dev::EnumerateDevices(
     42     const CompletionCallbackWithOutput<std::vector<DeviceRef_Dev> >& callback) {
     43   if (has_interface<PPB_VideoCapture_Dev_0_3>()) {
     44     return get_interface<PPB_VideoCapture_Dev_0_3>()->EnumerateDevices(
     45         pp_resource(), callback.output(), callback.pp_completion_callback());
     46   }
     47 
     48   return callback.MayForce(PP_ERROR_NOINTERFACE);
     49 }
     50 
     51 int32_t VideoCapture_Dev::MonitorDeviceChange(
     52     PP_MonitorDeviceChangeCallback callback,
     53     void* user_data) {
     54   if (has_interface<PPB_VideoCapture_Dev_0_3>()) {
     55     return get_interface<PPB_VideoCapture_Dev_0_3>()->MonitorDeviceChange(
     56         pp_resource(), callback, user_data);
     57   }
     58 
     59   return PP_ERROR_NOINTERFACE;
     60 }
     61 
     62 int32_t VideoCapture_Dev::Open(
     63     const DeviceRef_Dev& device_ref,
     64     const PP_VideoCaptureDeviceInfo_Dev& requested_info,
     65     uint32_t buffer_count,
     66     const CompletionCallback& callback) {
     67   if (has_interface<PPB_VideoCapture_Dev_0_3>()) {
     68     return get_interface<PPB_VideoCapture_Dev_0_3>()->Open(
     69         pp_resource(), device_ref.pp_resource(), &requested_info, buffer_count,
     70         callback.pp_completion_callback());
     71   }
     72 
     73   return callback.MayForce(PP_ERROR_NOINTERFACE);
     74 }
     75 
     76 int32_t VideoCapture_Dev::StartCapture() {
     77   if (has_interface<PPB_VideoCapture_Dev_0_3>()) {
     78     return get_interface<PPB_VideoCapture_Dev_0_3>()->StartCapture(
     79         pp_resource());
     80   }
     81 
     82   return PP_ERROR_NOINTERFACE;
     83 }
     84 
     85 int32_t VideoCapture_Dev::ReuseBuffer(uint32_t buffer) {
     86   if (has_interface<PPB_VideoCapture_Dev_0_3>()) {
     87     return get_interface<PPB_VideoCapture_Dev_0_3>()->ReuseBuffer(pp_resource(),
     88                                                                   buffer);
     89   }
     90 
     91   return PP_ERROR_NOINTERFACE;
     92 }
     93 
     94 int32_t VideoCapture_Dev::StopCapture() {
     95   if (has_interface<PPB_VideoCapture_Dev_0_3>()) {
     96     return get_interface<PPB_VideoCapture_Dev_0_3>()->StopCapture(
     97         pp_resource());
     98   }
     99 
    100   return PP_ERROR_NOINTERFACE;
    101 }
    102 
    103 void VideoCapture_Dev::Close() {
    104   if (has_interface<PPB_VideoCapture_Dev_0_3>()) {
    105     get_interface<PPB_VideoCapture_Dev_0_3>()->Close(pp_resource());
    106   }
    107 }
    108 
    109 }  // namespace pp
    110