drm_color_mgmt.h File Reference

#include <linux/ctype.h>
#include <linux/math64.h>
#include <drm/drm_property.h>

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Typedefs
typedef void(*	drm_crtc_set_lut_func) (struct drm_crtc *, unsigned int, u16, u16, u16)

Enumerations
enum	drm_color_encoding { DRM_COLOR_YCBCR_BT601 , DRM_COLOR_YCBCR_BT709 , DRM_COLOR_YCBCR_BT2020 , DRM_COLOR_ENCODING_MAX }
enum	drm_color_range { DRM_COLOR_YCBCR_LIMITED_RANGE , DRM_COLOR_YCBCR_FULL_RANGE , DRM_COLOR_RANGE_MAX }
enum	drm_color_lut_tests { DRM_COLOR_LUT_EQUAL_CHANNELS = BIT(0) , DRM_COLOR_LUT_NON_DECREASING = BIT(1) }

Functions
u64	drm_color_ctm_s31_32_to_qm_n (u64 user_input, u32 m, u32 n)
void	drm_crtc_enable_color_mgmt (struct drm_crtc *crtc, uint degamma_lut_size, bool has_ctm, uint gamma_lut_size)
int	drm_mode_crtc_set_gamma_size (struct drm_crtc *crtc, int gamma_size)
int	drm_plane_create_color_properties (struct drm_plane *plane, u32 supported_encodings, u32 supported_ranges, enum drm_color_encoding default_encoding, enum drm_color_range default_range)
int	drm_color_lut_check (const struct drm_property_blob *lut, u32 tests)
void	drm_crtc_load_gamma_888 (struct drm_crtc *crtc, const struct drm_color_lut *lut, drm_crtc_set_lut_func set_gamma)
void	drm_crtc_load_gamma_565_from_888 (struct drm_crtc *crtc, const struct drm_color_lut *lut, drm_crtc_set_lut_func set_gamma)
void	drm_crtc_load_gamma_555_from_888 (struct drm_crtc *crtc, const struct drm_color_lut *lut, drm_crtc_set_lut_func set_gamma)
void	drm_crtc_fill_gamma_888 (struct drm_crtc *crtc, drm_crtc_set_lut_func set_gamma)
void	drm_crtc_fill_gamma_565 (struct drm_crtc *crtc, drm_crtc_set_lut_func set_gamma)
void	drm_crtc_fill_gamma_555 (struct drm_crtc *crtc, drm_crtc_set_lut_func set_gamma)
void	drm_crtc_load_palette_8 (struct drm_crtc *crtc, const struct drm_color_lut *lut, drm_crtc_set_lut_func set_palette)
void	drm_crtc_fill_palette_332 (struct drm_crtc *crtc, drm_crtc_set_lut_func set_palette)
void	drm_crtc_fill_palette_8 (struct drm_crtc *crtc, drm_crtc_set_lut_func set_palette)
int	drm_color_lut32_check (const struct drm_property_blob *lut, u32 tests)

Typedef Documentation

drm_crtc_set_lut_func

typedef void(* drm_crtc_set_lut_func) (struct drm_crtc *, unsigned int, u16, u16, u16)

Enumeration Type Documentation

drm_color_encoding

enum drm_color_encoding

Enumerator
DRM_COLOR_YCBCR_BT601
DRM_COLOR_YCBCR_BT709
DRM_COLOR_YCBCR_BT2020
DRM_COLOR_ENCODING_MAX

drm_color_lut_tests

enum drm_color_lut_tests

enum drm_color_lut_tests - hw-specific LUT tests to perform

The drm_color_lut_check() function takes a bitmask of the values here to determine which tests to apply to a userspace-provided LUT.

Enumerator
DRM_COLOR_LUT_EQUAL_CHANNELS	@DRM_COLOR_LUT_EQUAL_CHANNELS: Checks whether the entries of a LUT all have equal values for the red, green, and blue channels. Intended for hardware that only accepts a single value per LUT entry and assumes that value applies to all three color components.
DRM_COLOR_LUT_NON_DECREASING	@DRM_COLOR_LUT_NON_DECREASING: Checks whether the entries of a LUT are always flat or increasing (never decreasing).

drm_color_range

enum drm_color_range

Enumerator
DRM_COLOR_YCBCR_LIMITED_RANGE
DRM_COLOR_YCBCR_FULL_RANGE
DRM_COLOR_RANGE_MAX

Function Documentation

drm_color_ctm_s31_32_to_qm_n()

u64 drm_color_ctm_s31_32_to_qm_n	(	u64	user_input,
		u32	m,
		u32	n
	)

drm_color_lut32_check()

int drm_color_lut32_check	(	const struct drm_property_blob *	lut,
		u32	tests
	)

drm_color_lut_check()

int drm_color_lut_check	(	const struct drm_property_blob *	lut,
		u32	tests
	)

drm_crtc_enable_color_mgmt()

void drm_crtc_enable_color_mgmt	(	struct drm_crtc *	crtc,
		uint	degamma_lut_size,
		bool	has_ctm,
		uint	gamma_lut_size
	)

drm_crtc_fill_gamma_555()

void drm_crtc_fill_gamma_555	(	struct drm_crtc *	crtc,
		drm_crtc_set_lut_func	set_gamma
	)

drm_crtc_fill_gamma_565()

void drm_crtc_fill_gamma_565	(	struct drm_crtc *	crtc,
		drm_crtc_set_lut_func	set_gamma
	)

drm_crtc_fill_gamma_888()

void drm_crtc_fill_gamma_888	(	struct drm_crtc *	crtc,
		drm_crtc_set_lut_func	set_gamma
	)

drm_crtc_fill_palette_332()

void drm_crtc_fill_palette_332	(	struct drm_crtc *	crtc,
		drm_crtc_set_lut_func	set_palette
	)

drm_crtc_fill_palette_8()

void drm_crtc_fill_palette_8	(	struct drm_crtc *	crtc,
		drm_crtc_set_lut_func	set_palette
	)

drm_crtc_load_gamma_555_from_888()

void drm_crtc_load_gamma_555_from_888	(	struct drm_crtc *	crtc,
		const struct drm_color_lut *	lut,
		drm_crtc_set_lut_func	set_gamma
	)

drm_crtc_load_gamma_565_from_888()

void drm_crtc_load_gamma_565_from_888	(	struct drm_crtc *	crtc,
		const struct drm_color_lut *	lut,
		drm_crtc_set_lut_func	set_gamma
	)

drm_crtc_load_gamma_888()

void drm_crtc_load_gamma_888	(	struct drm_crtc *	crtc,
		const struct drm_color_lut *	lut,
		drm_crtc_set_lut_func	set_gamma
	)

drm_crtc_load_palette_8()

void drm_crtc_load_palette_8	(	struct drm_crtc *	crtc,
		const struct drm_color_lut *	lut,
		drm_crtc_set_lut_func	set_palette
	)

drm_mode_crtc_set_gamma_size()

int drm_mode_crtc_set_gamma_size	(	struct drm_crtc *	crtc,
		int	gamma_size
	)

drm_plane_create_color_properties()

int drm_plane_create_color_properties	(	struct drm_plane *	plane,
		u32	supported_encodings,
		u32	supported_ranges,
		enum drm_color_encoding	default_encoding,
		enum drm_color_range	default_range
	)