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// Copyright 2014 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_STRATEGY_UNDERLAY_H_
#define COMPONENTS_VIZ_SERVICE_DISPLAY_OVERLAY_STRATEGY_UNDERLAY_H_
#include <vector>
#include "base/memory/raw_ptr.h"
#include "components/viz/service/display/overlay_processor_strategy.h"
#include "components/viz/service/display/overlay_processor_using_strategy.h"
#include "components/viz/service/viz_service_export.h"
namespace viz {
// The underlay strategy looks for a video quad without regard to quads above
// it. The video is "underlaid" through a black transparent quad substituted
// for the video quad. The overlay content can then be blended in by the
// hardware under the the scene. This is only valid for overlay contents that
// are fully opaque.
class VIZ_SERVICE_EXPORT OverlayStrategyUnderlay
: public OverlayProcessorStrategy {
public:
enum class OpaqueMode {
// Require candidates to be |is_opaque|.
RequireOpaqueCandidates,
// Allow non-|is_opaque| candidates to be promoted.
AllowTransparentCandidates,
};
// If |allow_nonopaque_overlays| is true, then we don't require that the
// the candidate is_opaque.
explicit OverlayStrategyUnderlay(
OverlayProcessorUsingStrategy* capability_checker,
OpaqueMode opaque_mode = OpaqueMode::RequireOpaqueCandidates);
OverlayStrategyUnderlay(const OverlayStrategyUnderlay&) = delete;
OverlayStrategyUnderlay& operator=(const OverlayStrategyUnderlay&) = delete;
~OverlayStrategyUnderlay() override;
void Propose(
const SkM44& output_color_matrix,
const OverlayProcessorInterface::FilterOperationsMap& render_pass_filters,
const OverlayProcessorInterface::FilterOperationsMap&
render_pass_backdrop_filters,
const DisplayResourceProvider* resource_provider,
AggregatedRenderPassList* render_pass_list,
SurfaceDamageRectList* surface_damage_rect_list,
const PrimaryPlane* primary_plane,
std::vector<OverlayProposedCandidate>* candidates,
std::vector<gfx::Rect>* content_bounds) override;
bool Attempt(
const SkM44& output_color_matrix,
const OverlayProcessorInterface::FilterOperationsMap& render_pass_filters,
const OverlayProcessorInterface::FilterOperationsMap&
render_pass_backdrop_filters,
const DisplayResourceProvider* resource_provider,
AggregatedRenderPassList* render_pass_list,
SurfaceDamageRectList* surface_damage_rect_list,
const PrimaryPlane* primary_plane,
OverlayCandidateList* candidates,
std::vector<gfx::Rect>* content_bounds,
const OverlayProposedCandidate& proposed_candidate) override;
void CommitCandidate(const OverlayProposedCandidate& proposed_candidate,
AggregatedRenderPass* render_pass) override;
void AdjustOutputSurfaceOverlay(
OverlayProcessorInterface::OutputSurfaceOverlayPlane*
output_surface_plane) override;
OverlayStrategy GetUMAEnum() const override;
private:
raw_ptr<OverlayProcessorUsingStrategy> capability_checker_; // Weak.
OpaqueMode opaque_mode_;
};
} // namespace viz
#endif // COMPONENTS_VIZ_SERVICE_DISPLAY_OVERLAY_STRATEGY_UNDERLAY_H_
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