session

type Output struct {
	Buffer       uint64
	NewBuffer    bool // import Planes as a new wl_buffer
	Retired      []Retired
	Width        int32
	Height       int32
	FourCC       uint32
	Modifier     uint64
	Planes       [4]Plane
	PlaneCount   int
	Acquire      Timeline // ID 0; FD always valid (persistent)
	Release      Timeline // ID is the buffer; FD valid only with NewTimelines
	NewTimelines bool
	AcquirePoint uint64
	ReleasePoint uint64
	ReleaseFD    int // eventfd readable when ReleasePoint signals; stable per buffer
}

type Plane struct {
	FD     int
	Offset uint32
	Stride uint32
}

type Retired struct {
	Buffer    uint64
	ReleaseFD int
}

type Slot struct {
	Buffer       *buffers.Buffer
	Image        *vkdevice.Image
	Frame        *vkdevice.Frame
	First        bool
	Wait         *vkdevice.BinaryFence
	PendingWait  *vkdevice.BinaryFence
	WaitInFlight bool

	ReleaseHandle uint32
	ReleaseFD     int  // eventfd armed on each commit's release point
	ReleaseExport int  // exported syncobj fd of the release timeline
	Presented     bool // the caller has been told to import this buffer
	// contains filtered or unexported fields
}

type Target struct {
	Device   *vkdevice.Device
	Node     *syncobj.Node
	Pool     *buffers.Pool
	Preparer *render.Preparer
	Slots    map[uint64]*Slot
	// contains filtered or unexported fields
}

type TargetConfig struct {
	MainDevice  uint64
	Formats     []vkdevice.Format
	Transparent bool
}

type Timeline struct {
	ID uint64
	FD int
}