1 files changed, 63 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/desktop_capture/screen_capturer_fuchsia.h b/third_party/libwebrtc/modules/desktop_capture/screen_capturer_fuchsia.h
new file mode 100644
index 0000000000..6e0f87cc58
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+++ b/third_party/libwebrtc/modules/desktop_capture/screen_capturer_fuchsia.h
@@ -0,0 +1,63 @@
+/*
+ *  Copyright 2022 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.
+ */
+
+#ifndef MODULES_DESKTOP_CAPTURE_SCREEN_CAPTURER_FUCHSIA_H_
+#define MODULES_DESKTOP_CAPTURE_SCREEN_CAPTURER_FUCHSIA_H_
+
+#include <fuchsia/sysmem/cpp/fidl.h>
+#include <fuchsia/ui/composition/cpp/fidl.h>
+#include <lib/sys/cpp/component_context.h>
+
+#include <memory>
+#include <unordered_map>
+
+#include "modules/desktop_capture/desktop_capture_options.h"
+#include "modules/desktop_capture/desktop_capturer.h"
+#include "modules/desktop_capture/desktop_frame.h"
+
+namespace webrtc {
+
+class ScreenCapturerFuchsia final : public DesktopCapturer {
+ public:
+  ScreenCapturerFuchsia();
+  ~ScreenCapturerFuchsia() override;
+
+  // DesktopCapturer interface.
+  void Start(Callback* callback) override;
+  void CaptureFrame() override;
+  bool GetSourceList(SourceList* screens) override;
+  bool SelectSource(SourceId id) override;
+
+ private:
+  fuchsia::sysmem::BufferCollectionConstraints GetBufferConstraints();
+  void SetupBuffers();
+  uint32_t GetPixelsPerRow(
+      const fuchsia::sysmem::ImageFormatConstraints& constraints);
+
+  Callback* callback_ = nullptr;
+
+  std::unique_ptr<sys::ComponentContext> component_context_;
+  fuchsia::sysmem::AllocatorSyncPtr sysmem_allocator_;
+  fuchsia::ui::composition::AllocatorSyncPtr flatland_allocator_;
+  fuchsia::ui::composition::ScreenCaptureSyncPtr screen_capture_;
+  fuchsia::sysmem::BufferCollectionSyncPtr collection_;
+  fuchsia::sysmem::BufferCollectionInfo_2 buffer_collection_info_;
+  std::unordered_map<uint32_t, uint8_t*> virtual_memory_mapped_addrs_;
+
+  bool fatal_error_;
+
+  // Dimensions of the screen we are capturing
+  uint32_t width_;
+  uint32_t height_;
+};
+
+}  // namespace webrtc
+
+#endif  // MODULES_DESKTOP_CAPTURE_SCREEN_CAPTURER_FUCHSIA_H_