fl::anonymous_namespace{gamut_map.cpp.hpp} Namespace Reference

Classes
struct	RgbFeasible
	Feasibility against the three-emitter hull. More...
struct	RgbwFeasible
	Feasibility against the device's real hull when it has a white emitter. More...
struct	RgbwwFeasible
	Feasibility against the device's real hull when it has two white emitters. More...

Functions
void	chromaCandidateXyz (const i32(&lab)[3], i32 lightness, i32 factor, i32(&out_xyz)[3]) FL_NO_EXCEPT
	XYZ of the candidate at factor of the target's chroma.
i32	clampChromaFactor (i32 low, i32 high) FL_NO_EXCEPT
	The target's chroma clamped into [low, high], in factor space.
void	clampGamutDrives (i32(&drives)[3]) FL_NO_EXCEPT
	Clamp drives into [0, 1].
template<typename Feasible>
bool	feasibleChromaInterval (const i32(&lab)[3], i32 lightness, Feasible feasible, i32 *out_low, i32 *out_high) FL_NO_EXCEPT
	The feasible chroma interval at the target's own lightness, as factors of the target's chroma.
bool	gamutDrivesAreInRange (const i32(&drives)[3], i32 slack) FL_NO_EXCEPT
	True when every drive is inside [0, 1], allowing slack ULP either side.
template<typename Feasible>
i32	highestReachableLightness (const i32(&lab)[3], i32 cap, i32 requested, Feasible feasible) FL_NO_EXCEPT
	The highest lightness at or below requested whose feasible chroma interval the probe scan can still find.
template<typename Feasible>
i32	largestFeasibleChroma (const i32(&lab)[3], i32 lightness, Feasible feasible) FL_NO_EXCEPT
	Largest chroma factor the hull accepts, by a fixed count of halvings.
i32	scaleGamutQ16 (i32 value, i32 factor) FL_NO_EXCEPT
	Scale an s16.16 value by an s16.16 factor, rounding to nearest.

Variables
constexpr i32	kGamutD65Q16 [3] = {62289, 65536, 71372}
	D65 in s16.16, the white the working domain is normalized to.
constexpr i32	kGamutFeasibilitySlack = 64
	Slack allowed on the drive bounds, in s16.16 raw units.
constexpr i32	kGamutFullDrive = 65536
	Full drive, as an s16.16 raw value.
constexpr int	kGamutMapProbes = 8
	Probes used to find a seed inside the feasible chroma interval when the target is brighter than the device's brightest neutral (#4245).
constexpr i32	kGamutProbeCeilingQ16 = 4 << 16
	How far above the target's own chroma the probes reach, in Q16.