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      1 /*
      2  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #if !defined(__has_feature) || !__has_feature(objc_arc)
     12 #error "This file requires ARC support."
     13 #endif
     14 
     15 #include "webrtc/modules/video_render/ios/video_render_ios_channel.h"
     16 
     17 using namespace webrtc;
     18 
     19 VideoRenderIosChannel::VideoRenderIosChannel(VideoRenderIosView* view)
     20     : view_(view), current_frame_(new VideoFrame()), buffer_is_updated_(false) {
     21 }
     22 
     23 VideoRenderIosChannel::~VideoRenderIosChannel() { delete current_frame_; }
     24 
     25 int32_t VideoRenderIosChannel::RenderFrame(const uint32_t stream_id,
     26                                            const VideoFrame& video_frame) {
     27   current_frame_->CopyFrame(video_frame);
     28   current_frame_->set_render_time_ms(0);
     29   buffer_is_updated_ = true;
     30 
     31   return 0;
     32 }
     33 
     34 bool VideoRenderIosChannel::RenderOffScreenBuffer() {
     35   if (![view_ renderFrame:current_frame_]) {
     36     return false;
     37   }
     38 
     39   buffer_is_updated_ = false;
     40 
     41   return true;
     42 }
     43 
     44 bool VideoRenderIosChannel::IsUpdated() { return buffer_is_updated_; }
     45 
     46 int VideoRenderIosChannel::SetStreamSettings(const float z_order,
     47                                              const float left,
     48                                              const float top,
     49                                              const float right,
     50                                              const float bottom) {
     51   if (![view_ setCoordinatesForZOrder:z_order
     52                                  Left:left
     53                                   Top:bottom
     54                                 Right:right
     55                                Bottom:top]) {
     56 
     57     return -1;
     58   }
     59 
     60   return 0;
     61 }
     62