cef/libcef/browser/osr/software_output_device_proxy.h

57 lines
2.0 KiB
C++

#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_