1 /* 2 * Copyright 2022 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 #ifndef MODULES_DESKTOP_CAPTURE_SCREEN_CAPTURER_FUCHSIA_H_ 12 #define MODULES_DESKTOP_CAPTURE_SCREEN_CAPTURER_FUCHSIA_H_ 13 14 #include <fuchsia/sysmem/cpp/fidl.h> 15 #include <fuchsia/ui/composition/cpp/fidl.h> 16 #include <lib/sys/cpp/component_context.h> 17 18 #include <memory> 19 #include <unordered_map> 20 21 #include "modules/desktop_capture/desktop_capture_options.h" 22 #include "modules/desktop_capture/desktop_capturer.h" 23 #include "modules/desktop_capture/desktop_frame.h" 24 25 namespace webrtc { 26 27 class ScreenCapturerFuchsia final : public DesktopCapturer { 28 public: 29 ScreenCapturerFuchsia(); 30 ~ScreenCapturerFuchsia() override; 31 32 static bool CheckRequirements(); 33 34 // DesktopCapturer interface. 35 void Start(Callback* callback) override; 36 void CaptureFrame() override; 37 bool GetSourceList(SourceList* screens) override; 38 bool SelectSource(SourceId id) override; 39 40 private: 41 fuchsia::sysmem::BufferCollectionConstraints GetBufferConstraints(); 42 void SetupBuffers(); 43 uint32_t GetPixelsPerRow( 44 const fuchsia::sysmem::ImageFormatConstraints& constraints); 45 46 Callback* callback_ = nullptr; 47 48 std::unique_ptr<sys::ComponentContext> component_context_; 49 fuchsia::sysmem::AllocatorSyncPtr sysmem_allocator_; 50 fuchsia::ui::composition::AllocatorSyncPtr flatland_allocator_; 51 fuchsia::ui::composition::ScreenCaptureSyncPtr screen_capture_; 52 fuchsia::sysmem::BufferCollectionSyncPtr collection_; 53 fuchsia::sysmem::BufferCollectionInfo_2 buffer_collection_info_; 54 std::unordered_map<uint32_t, uint8_t*> virtual_memory_mapped_addrs_; 55 56 bool fatal_error_; 57 58 // Dimensions of the screen we are capturing 59 uint32_t width_; 60 uint32_t height_; 61 }; 62 63 } // namespace webrtc 64 65 #endif // MODULES_DESKTOP_CAPTURE_SCREEN_CAPTURER_FUCHSIA_H_ 66