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// Copyright 2022 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_EXO_WAYLAND_WAYLAND_DMABUF_FEEDBACK_MANAGER_H_
#define COMPONENTS_EXO_WAYLAND_WAYLAND_DMABUF_FEEDBACK_MANAGER_H_
#include <stdint.h>
#include <sys/types.h>
#include <map>
#include <memory>
#include "base/containers/flat_map.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/read_only_shared_memory_region.h"
#include "components/exo/surface_observer.h"
struct wl_client;
struct wl_resource;
namespace exo {
class Display;
namespace wayland {
namespace {
class WaylandDmabufFeedback;
class WaylandDmabufFeedbackTranche;
class WaylandDmabufSurfaceFeedback;
} // namespace
using IndexedDrmFormatsAndModifiers =
base::flat_map<uint32_t, base::flat_map<size_t, uint64_t>>;
enum class ScanoutReasonFlags : uint32_t {
kNone = 0,
kFullscreen = 1,
kOverlayPriorityHint = 2
};
class WaylandDmabufFeedbackManager {
public:
explicit WaylandDmabufFeedbackManager(Display* display);
WaylandDmabufFeedbackManager(const WaylandDmabufFeedbackManager&) = delete;
WaylandDmabufFeedbackManager& operator=(const WaylandDmabufFeedbackManager&) =
delete;
~WaylandDmabufFeedbackManager();
Display* GetDisplay() { return display_; }
uint32_t GetVersionSupportedByPlatform() const { return version_; }
bool IsFormatSupported(uint32_t format) const;
void SendFormatsAndModifiers(wl_resource* resource) const;
void GetDefaultFeedback(wl_client* client,
wl_resource* dma_buf_resource,
uint32_t feedback_id);
void GetSurfaceFeedback(wl_client* client,
wl_resource* dma_buf_resource,
uint32_t feedback_id,
wl_resource* surface_resource);
void RemoveSurfaceFeedback(Surface* surface);
void AddSurfaceToScanoutCandidates(Surface* surface,
ScanoutReasonFlags reason);
void RemoveSurfaceFromScanoutCandidates(Surface* surface,
ScanoutReasonFlags reason);
void MaybeResendFeedback(Surface* surface);
private:
void SendFeedback(WaylandDmabufFeedback* feedback, wl_resource* resource);
void SendTranche(const WaylandDmabufFeedbackTranche* tranche,
wl_resource* resource);
const raw_ptr<Display, ExperimentalAsh> display_;
uint32_t version_;
IndexedDrmFormatsAndModifiers drm_formats_and_modifiers_;
std::unique_ptr<base::ReadOnlySharedMemoryRegion> shared_memory_region_;
std::unique_ptr<WaylandDmabufFeedback> default_feedback_;
base::flat_map<Surface*, std::unique_ptr<WaylandDmabufSurfaceFeedback>>
surface_feedbacks_;
std::map<Surface*, ScanoutReasonFlags> scanout_candidates_;
};
} // namespace wayland
} // namespace exo
#endif // COMPONENTS_EXO_WAYLAND_WAYLAND_DMABUF_FEEDBACK_MANAGER_H_
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