Wizt::LanternFestival Struct Reference

Behavior is similar to a map<VCamera, RefPtr<Lanternfish>> but the number of entries here remains limited. More...

#include <Lanternfish.hpp>

Inheritance diagram for Wizt::LanternFestival:

Classes
struct	LanternView

Public Types
using	Parameters = LanternFestivalParameters
using	LanternViewSequence = std::list<LanternView>
using	lock_readonly = std::shared_lock<MemCore::shared_mutex>
using	lock_writable = std::unique_lock<MemCore::shared_mutex>

Public Member Functions
RefPtr< Lanternfish >	getExactLantern (const Parameters &LFP) const
	Get a lantern exactly matching the given camera position.
RefPtr< Lanternfish >	getBestLantern (const Parameters &LFP) const
	Returns the best fitting lantern which is always valid.
RefPtr< Lanternfish >	getMostRecentValidLantern () const
	As needed for the "frozen" feature and as fallback when no best Lantern could be found.
RefPtr< Lanternfish >	newLantern (const RefPtr< Grid > &G, const RefPtr< Chart > &chart, const LanternFestival::Parameters &LFP)
void	setLanternGrid (const RefPtr< Grid > &G, const RefPtr< Chart > &chart)
bool	hasSameLanternGrid (const RefPtr< Grid > &G, const RefPtr< Chart > &chart) const

Public Attributes
WeakPtr< Fiber::Grid >	myGrid
WeakPtr< Chart >	myChart
std::unordered_map< WeakPtr< Grid >, LanternViewSequence >	myLanternView
MemCore::shared_mutex	myLanternView_mutex

Static Public Attributes
static unsigned	LanternsToRemember = 128

Detailed Description

Behavior is similar to a map<VCamera, RefPtr<Lanternfish>> but the number of entries here remains limited.

Member Function Documentation

getExactLantern()

RefPtr< Lanternfish > Wizt::LanternFestival::getExactLantern

(

const Parameters &

LFP

)

const

Get a lantern exactly matching the given camera position.

It may be invalid (is under creation or has data under creation).

References getExactLantern().

Referenced by getExactLantern().