#include "BLI_array.hh"
#include "BLI_math_color.h"
#include "BLI_math_color.hh"
#include "BLI_math_matrix.hh"
#include "BLI_math_vector.hh"
#include "BLI_simd.hh"
#include "BLI_utildefines.h"
#include <string.h>
#include "BLI_strict_flags.h"

Classes
struct	blender::math::locus_entry_t

Namespaces
namespace	blender

namespace	blender::math

Functions
void	hsv_to_rgb (float h, float s, float v, float r_r, float r_g, float *r_b)

void	hsl_to_rgb (float h, float s, float l, float r_r, float r_g, float *r_b)

void	hsv_to_rgb_v (const float hsv[3], float r_rgb[3])

void	hsl_to_rgb_v (const float hsl[3], float r_rgb[3])

void	rgb_to_yuv (float r, float g, float b, float r_y, float r_u, float *r_v, int colorspace)

void	yuv_to_rgb (float y, float u, float v, float r_r, float r_g, float *r_b, int colorspace)

void	rgb_to_ycc (float r, float g, float b, float r_y, float r_cb, float *r_cr, int colorspace)

void	ycc_to_rgb (float y, float cb, float cr, float r_r, float r_g, float *r_b, int colorspace)

void	hex_to_rgb (const char hexcol, float r_r, float r_g, float r_b)

void	hex_to_rgba (const char hexcol, float r_r, float r_g, float r_b, float *r_a)

void	rgb_to_hsv (float r, float g, float b, float r_h, float r_s, float *r_v)

void	rgb_to_hsv_v (const float rgb[3], float r_hsv[3])

void	rgb_to_hsl (float r, float g, float b, float r_h, float r_s, float *r_l)

void	rgb_to_hsl_compat (float r, float g, float b, float r_h, float r_s, float *r_l)

void	rgb_to_hsl_compat_v (const float rgb[3], float r_hsl[3])

void	rgb_to_hsl_v (const float rgb[3], float r_hsl[3])

void	rgb_to_hsv_compat (float r, float g, float b, float r_h, float r_s, float *r_v)

void	rgb_to_hsv_compat_v (const float rgb[3], float r_hsv[3])

void	hsv_clamp_v (float hsv[3], float v_max)

uint	hsv_to_cpack (float h, float s, float v)

uint	rgb_to_cpack (float r, float g, float b)

void	cpack_to_rgb (uint col, float r_r, float r_g, float *r_b)

void	rgb_uchar_to_float (float r_col[3], const uchar col_ub[3])

void	rgba_uchar_to_float (float r_col[4], const uchar col_ub[4])

void	rgb_float_to_uchar (uchar r_col[3], const float col_f[3])

void	rgba_float_to_uchar (uchar r_col[4], const float col_f[4])

float	srgb_to_linearrgb (float c)

float	linearrgb_to_srgb (float c)

MALWAYS_INLINE float	int_as_float (int32_t v)

MALWAYS_INLINE int32_t	float_as_int (float v)

MALWAYS_INLINE float	_bli_math_fastpow (const int exp, const int e2coeff, const float arg)

MALWAYS_INLINE float	_bli_math_improve_5throot_solution (const float old_result, const float x)

MALWAYS_INLINE float	_bli_math_fastpow24 (const float arg)

MALWAYS_INLINE float	_bli_math_rsqrt (float in)

MALWAYS_INLINE float	_bli_math_fastpow512 (const float arg)

MALWAYS_INLINE float	srgb_to_linearrgb_approx (float c)

MALWAYS_INLINE float	linearrgb_to_srgb_approx (float c)

void	srgb_to_linearrgb_v3_v3 (float linear[3], const float srgb[3])

void	linearrgb_to_srgb_v3_v3 (float srgb[3], const float linear[3])

void	minmax_rgb (short c[3])

int	constrain_rgb (float r, float g, float *b)

void	lift_gamma_gain_to_asc_cdl (const float lift, const float gamma, const float gain, float offset, float slope, float power)

void	rgb_float_set_hue_float_offset (float rgb[3], float hue_offset)

void	rgb_byte_set_hue_float_offset (uchar rgb[3], float hue_offset)

static ushort	hipart (const float f)

static float	index_to_float (const ushort i)

void	BLI_init_srgb_conversion ()

bool	blender::math::whitepoint_to_temp_tint (const float3 &white, float &temperature, float &tint)

float3	blender::math::whitepoint_from_temp_tint (float temperature, float tint)

float3x3	blender::math::chromatic_adaption_matrix (const float3 &from_XYZ, const float3 &to_XYZ)

Variables
float	BLI_color_from_srgb_table [256]

ushort	BLI_color_to_srgb_table [0x10000]

static const std::array< locus_entry_t, 31 >	blender::math::planck_locus

Function Documentation

◆ _bli_math_fastpow()

MALWAYS_INLINE float _bli_math_fastpow	(	const int	exp,
		const int	e2coeff,
		const float	arg )

Definition at line 604 of file math_color.cc.

References exp(), float, float_as_int(), int_as_float(), and ret.

Referenced by _bli_math_fastpow24(), and _bli_math_fastpow512().

◆ _bli_math_fastpow24()

MALWAYS_INLINE float _bli_math_fastpow24 ( const float arg )

Definition at line 622 of file math_color.cc.

References _bli_math_fastpow(), _bli_math_improve_5throot_solution(), and x.

Referenced by srgb_to_linearrgb_approx().

◆ _bli_math_fastpow512()

MALWAYS_INLINE float _bli_math_fastpow512 ( const float arg )

Definition at line 638 of file math_color.cc.

References _bli_math_fastpow(), and _bli_math_rsqrt().

Referenced by linearrgb_to_srgb_approx().

◆ _bli_math_improve_5throot_solution()

MALWAYS_INLINE float _bli_math_improve_5throot_solution	(	const float	old_result,
		const float	x )

Definition at line 613 of file math_color.cc.

Referenced by _bli_math_fastpow24().

◆ _bli_math_rsqrt()

MALWAYS_INLINE float _bli_math_rsqrt ( float in )

Definition at line 633 of file math_color.cc.

References sqrtf.

Referenced by _bli_math_fastpow512().

◆ BLI_init_srgb_conversion()

void BLI_init_srgb_conversion ( void )

Definition at line 831 of file math_color.cc.

References b, BLI_color_from_srgb_table, BLI_color_to_srgb_table, hipart(), index_to_float(), initialized, linearrgb_to_srgb(), and srgb_to_linearrgb().

Referenced by colormanagement_init(), blender::gpu::GPUTest::SetUp(), blender::tests::TEST(), blender::tests::TEST(), blender::tests::TEST(), blender::tests::TEST(), and blender::tests::TEST().

◆ constrain_rgb()

int constrain_rgb	(	float *	r,
		float *	g,
		float *	b )

If the requested RGB shade contains a negative weight for one of the primaries, it lies outside the color gamut accessible from the given triple of primaries. Desaturate it by adding white, equal quantities of R, G, and B, enough to make RGB all positive. The function returns 1 if the components were modified, zero otherwise.

Definition at line 709 of file math_color.cc.

References b, min_ffff(), and w().

◆ cpack_to_rgb()

void cpack_to_rgb	(	uint	col,
		float *	r_r,
		float *	r_g,
		float *	r_b )

Definition at line 395 of file math_color.cc.

References col, and float.

Referenced by BKE_palette_from_hash().

◆ float_as_int()

MALWAYS_INLINE int32_t float_as_int ( float v )

Definition at line 597 of file math_color.cc.

References v.

Referenced by _bli_math_fastpow(), and isect_ray_tri_watertight_v3().

◆ hex_to_rgb()

void hex_to_rgb	(	const char *	hexcol,
		float *	r_r,
		float *	r_g,
		float *	r_b )

Definition at line 185 of file math_color.cc.

References hex_to_rgba().

Referenced by BKE_gpencil_palette_ensure().

◆ hex_to_rgba()

void hex_to_rgba	(	const char *	hexcol,
		float *	r_r,
		float *	r_g,
		float *	r_b,
		float *	r_a )

Definition at line 190 of file math_color.cc.

References CLAMP, and float.

Referenced by hex_to_rgb(), and ui_colorpicker_hex_rna_cb().

◆ hipart()

static ushort hipart ( const float f )

static

Definition at line 784 of file math_color.cc.

Referenced by BLI_init_srgb_conversion().

◆ hsl_to_rgb()

void hsl_to_rgb	(	float	h,
		float	s,
		float	l,
		float *	r_r,
		float *	r_g,
		float *	r_b )

Definition at line 38 of file math_color.cc.

References CLAMP, fabsf, and l.

Referenced by BKE_icon_geom_invert_lightness(), blender::nodes::node_fn_combine_color_cc::get_multi_function(), hsl_to_rgb_v(), osl_prepend_color_from(), osl_transformc(), and svm_combine_color().

◆ hsl_to_rgb_v()

void hsl_to_rgb_v	(	const float	hsl[3],
		float	r_rgb[3] )

Definition at line 62 of file math_color.cc.

References hsl_to_rgb().

Referenced by BKE_colorband_evaluate(), color_mul_hsl_v3(), colorfn(), TEST(), ui_color_picker_hsv_to_rgb(), ui_color_picker_to_rgb_HSVCUBE_v(), and blender::compositor::ConvertHSLToRGBOperation::update_memory_buffer_partial().

◆ hsv_clamp_v()

void hsv_clamp_v	(	float	hsv[3],
		float	v_max )

Clamp hsv to usable values.

Definition at line 349 of file math_color.cc.

References CLAMP, floorf, and UNLIKELY.

◆ hsv_to_cpack()

uint hsv_to_cpack	(	float	h,
		float	s,
		float	v )

We define a 'cpack' here as a (3 byte color code) number that can be expressed like 0xFFAA66 or so. For that reason it is sensitive for endianness... with this function it works correctly.