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/*
* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <memory>
#include <utility>
#include "modules/desktop_capture/blank_detector_desktop_capturer_wrapper.h"
#include "modules/desktop_capture/desktop_capture_options.h"
#include "modules/desktop_capture/desktop_capturer.h"
#include "modules/desktop_capture/fallback_desktop_capturer_wrapper.h"
#include "modules/desktop_capture/rgba_color.h"
#include "modules/desktop_capture/win/screen_capturer_win_directx.h"
#include "modules/desktop_capture/win/screen_capturer_win_gdi.h"
namespace webrtc {
namespace {
std::unique_ptr<DesktopCapturer> CreateScreenCapturerWinDirectx(
const DesktopCaptureOptions& options) {
std::unique_ptr<DesktopCapturer> capturer(
new ScreenCapturerWinDirectx(options));
capturer.reset(new BlankDetectorDesktopCapturerWrapper(
std::move(capturer), RgbaColor(0, 0, 0, 0)));
return capturer;
}
} // namespace
// static
std::unique_ptr<DesktopCapturer> DesktopCapturer::CreateRawScreenCapturer(
const DesktopCaptureOptions& options) {
// Default capturer if no options are enabled is GDI.
std::unique_ptr<DesktopCapturer> capturer(new ScreenCapturerWinGdi(options));
// If DirectX is enabled use it as main capturer with GDI as fallback.
if (options.allow_directx_capturer()) {
// `dxgi_duplicator_controller` should be alive in this scope to ensure it
// won't unload DxgiDuplicatorController.
auto dxgi_duplicator_controller = DxgiDuplicatorController::Instance();
if (ScreenCapturerWinDirectx::IsSupported()) {
capturer.reset(new FallbackDesktopCapturerWrapper(
CreateScreenCapturerWinDirectx(options), std::move(capturer)));
return capturer;
}
}
// Use GDI as default capturer without any fallback solution.
return capturer;
}
} // namespace webrtc
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