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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_VIZ_SERVICE_DISPLAY_OVERLAY_PROCESSOR_ON_GPU_H_
#define COMPONENTS_VIZ_SERVICE_DISPLAY_OVERLAY_PROCESSOR_ON_GPU_H_
#include <memory>
#include "base/threading/thread_checker.h"
#include "build/build_config.h"
#include "components/viz/service/display/overlay_candidate.h"
#include "components/viz/service/viz_service_export.h"
#if BUILDFLAG(IS_WIN)
#include "components/viz/service/display/dc_layer_overlay.h"
#endif
#if BUILDFLAG(IS_APPLE)
#include "components/viz/service/display/ca_layer_overlay.h"
#endif
namespace gpu {
class DisplayCompositorMemoryAndTaskControllerOnGpu;
class SharedImageRepresentationFactory;
} // namespace gpu
namespace viz {
// This class defines the gpu thread side functionalities of overlay processing.
// This class would receive a list of overlay candidates and schedule to present
// the overlay candidates every frame. This class is created, accessed, and
// destroyed on the gpu thread.
class VIZ_SERVICE_EXPORT OverlayProcessorOnGpu {
public:
using CandidateList = OverlayCandidateList;
explicit OverlayProcessorOnGpu(
gpu::DisplayCompositorMemoryAndTaskControllerOnGpu*
display_controller_on_gpu);
OverlayProcessorOnGpu(const OverlayProcessorOnGpu&) = delete;
OverlayProcessorOnGpu& operator=(const OverlayProcessorOnGpu&) = delete;
~OverlayProcessorOnGpu();
// This function takes the overlay candidates, and schedule them for
// presentation later.
void ScheduleOverlays(CandidateList&& overlay_candidates);
#if BUILDFLAG(IS_ANDROID)
void NotifyOverlayPromotions(
base::flat_set<gpu::Mailbox> promotion_denied,
base::flat_map<gpu::Mailbox, gfx::Rect> possible_promotions);
#endif
private:
// TODO(weiliangc): Figure out how to share MemoryTracker with OutputSurface.
// For now this class is only used for Android classic code path, which only
// reads the shared images created elsewhere.
std::unique_ptr<gpu::SharedImageRepresentationFactory>
shared_image_representation_factory_;
THREAD_CHECKER(thread_checker_);
};
} // namespace viz
#endif // COMPONENTS_VIZ_SERVICE_DISPLAY_OVERLAY_PROCESSOR_ON_GPU_H_
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