1 files changed, 56 insertions, 0 deletions
diff --git a/libcef/browser/osr/software_output_device_proxy.h b/libcef/browser/osr/software_output_device_proxy.h
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+++ b/libcef/browser/osr/software_output_device_proxy.h
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+#ifndef CEF_LIBCEF_BROWSER_OSR_SOFTWARE_OUTPUT_DEVICE_PROXY_H_
+#define CEF_LIBCEF_BROWSER_OSR_SOFTWARE_OUTPUT_DEVICE_PROXY_H_
+
+#include "base/memory/shared_memory_mapping.h"
+#include "base/threading/thread_checker.h"
+#include "components/viz/service/display/software_output_device.h"
+#include "components/viz/service/viz_service_export.h"
+#include "mojo/public/cpp/bindings/remote.h"
+#include "services/viz/privileged/mojom/compositing/layered_window_updater.mojom.h"
+
+namespace viz {
+
+// SoftwareOutputDevice implementation that draws indirectly. An
+// implementation of mojom::LayeredWindowUpdater in the browser process
+// handles the actual drawing. Pixel backing is in SharedMemory so no copying
+// between processes is required.
+class VIZ_SERVICE_EXPORT SoftwareOutputDeviceProxy
+    : public SoftwareOutputDevice {
+ public:
+  explicit SoftwareOutputDeviceProxy(
+      mojo::PendingRemote<mojom::LayeredWindowUpdater> layered_window_updater);
+
+  SoftwareOutputDeviceProxy(const SoftwareOutputDeviceProxy&) = delete;
+  SoftwareOutputDeviceProxy& operator=(const SoftwareOutputDeviceProxy&) =
+      delete;
+
+  ~SoftwareOutputDeviceProxy() override;
+
+  // SoftwareOutputDevice implementation.
+  void OnSwapBuffers(SwapBuffersCallback swap_ack_callback,
+                     gfx::FrameData data) override;
+
+  // SoftwareOutputDeviceBase implementation.
+  void Resize(const gfx::Size& viewport_pixel_size,
+              float scale_factor) override;
+  SkCanvas* BeginPaint(const gfx::Rect& damage_rect) override;
+  void EndPaint() override;
+
+ private:
+  // Runs |swap_ack_callback_| after draw has happened.
+  void DrawAck();
+
+  mojo::Remote<mojom::LayeredWindowUpdater> layered_window_updater_;
+
+  std::unique_ptr<SkCanvas> canvas_;
+  bool waiting_on_draw_ack_ = false;
+  bool in_paint_ = false;
+  base::OnceClosure swap_ack_callback_;
+  base::WritableSharedMemoryMapping shm_;
+
+  THREAD_CHECKER(thread_checker_);
+};
+
+}  // namespace viz
+
+#endif  // CEF_LIBCEF_BROWSER_OSR_SOFTWARE_OUTPUT_DEVICE_PROXY_H_
+\ No newline at end of file