colorspaces.c File Reference

#include "common/colorspaces.h"
#include "common/colormatrices.c"
#include "common/darktable.h"
#include "common/debug.h"
#include "common/image_cache.h"
#include "common/file_location.h"
#include "common/math.h"
#include "common/matrices.h"
#include "common/srgb_tone_curve_values.h"
#include "common/utility.h"
#include "control/conf.h"
#include "control/control.h"
#include "develop/imageop.h"
#include <strings.h>
#include "common/imageio_jpeg.h"
#include "common/imageio_png.h"
#include "common/imageio_tiff.h"

Include dependency graph for colorspaces.c:

Go to the source code of this file.

Macros
#define	generate_mat3inv_body(c_type, A, B)
#define	A(y, x)   src[(y - 1) * 3 + (x - 1)]
#define	B(y, x)   dst[(y - 1) * 3 + (x - 1)]

Functions
static dt_colorspaces_color_profile_t *	_create_profile (dt_colorspaces_color_profile_type_t type, cmsHPROFILE profile, const char *name, int in_pos, int out_pos, int display_pos, int category_pos, int work_pos)
int	mat3inv_float (float *const dst, const float *const src)
int	mat3inv (float *const dst, const float *const src)
int	mat3inv_double (double *const dst, const double *const src)
static const dt_colorspaces_color_profile_t *	_get_profile (dt_colorspaces_t *self, dt_colorspaces_color_profile_type_t type, const char *filename, dt_colorspaces_profile_direction_t direction)
static __DT_CLONE_TARGETS__ int	dt_colorspaces_get_matrix_from_profile (cmsHPROFILE prof, dt_colormatrix_t matrix, float *lutr, float *lutg, float *lutb, const int lutsize, const int input)
int	dt_colorspaces_get_matrix_from_input_profile (cmsHPROFILE prof, dt_colormatrix_t matrix, float *lutr, float *lutg, float *lutb, const int lutsize)
int	dt_colorspaces_get_matrix_from_output_profile (cmsHPROFILE prof, dt_colormatrix_t matrix, float *lutr, float *lutg, float *lutb, const int lutsize)
static cmsHPROFILE	dt_colorspaces_create_lab_profile ()
static void	_compute_prequantized_primaries (const cmsCIExyY *whitepoint, const cmsCIExyYTRIPLE *primaries, cmsCIEXYZTRIPLE *primaries_prequantized)
static cmsHPROFILE	_create_lcms_profile (const char *desc, const char *dmdd, const cmsCIExyY *whitepoint, const cmsCIExyYTRIPLE *primaries, cmsToneCurve *trc, gboolean v2)
static double	_PQ_fct (double x)
static double	_HLG_fct (double x)
static cmsToneCurve *	_colorspaces_create_transfer (int32_t size, double(*fct)(double))
static cmsHPROFILE	_colorspaces_create_srgb_profile (gboolean v2)
static cmsHPROFILE	dt_colorspaces_create_srgb_profile ()
static cmsHPROFILE	dt_colorspaces_create_srgb_profile_v4 ()
static cmsHPROFILE	dt_colorspaces_create_brg_profile ()
static cmsHPROFILE	dt_colorspaces_create_gamma_rec709_rgb_profile (void)
static cmsHPROFILE	dt_colorspaces_create_itur_bt1886_rgb_profile (void)
static cmsHPROFILE	dt_colorspaces_create_adobergb_profile (void)
cmsHPROFILE	dt_colorspaces_create_alternate_profile (const char *makermodel)
cmsHPROFILE	dt_colorspaces_create_vendor_profile (const char *makermodel)
cmsHPROFILE	dt_colorspaces_create_darktable_profile (const char *makermodel)
static cmsHPROFILE	dt_colorspaces_create_xyz_profile (void)
static cmsHPROFILE	dt_colorspaces_create_linear_rec709_rgb_profile (void)
static cmsHPROFILE	dt_colorspaces_create_linear_rec2020_rgb_profile (void)
static cmsHPROFILE	dt_colorspaces_create_pq_rec2020_rgb_profile (void)
static cmsHPROFILE	dt_colorspaces_create_hlg_rec2020_rgb_profile (void)
static cmsHPROFILE	dt_colorspaces_create_pq_p3_rgb_profile (void)
static cmsHPROFILE	dt_colorspaces_create_hlg_p3_rgb_profile (void)
static cmsHPROFILE	dt_colorspaces_create_display_p3_rgb_profile (void)
static cmsHPROFILE	dt_colorspaces_create_linear_prophoto_rgb_profile (void)
static cmsHPROFILE	dt_colorspaces_create_linear_infrared_profile (void)
const dt_colorspaces_color_profile_t *	dt_colorspaces_get_work_profile (const int32_t imgid)
dt_colorspaces_color_profile_type_t	dt_image_find_best_color_profile (int32_t imgid, cmsHPROFILE *output, gboolean *new_profile)
	Best effort to find a suitable (input) color profile for a given image, using embedded ICC or EXIF whenever possible. This will also init the profile in the image cache.
dt_colorspaces_color_profile_type_t	dt_colorspaces_get_input_profile_from_image (int32_t imgid, dt_colorspaces_color_profile_type_t requested, cmsHPROFILE *output, gboolean *new_profile)
	Resolve an embedded/matrix input profile for a given image, honoring the requested type when possible. For non-RAW images, falls back to dt_image_find_best_color_profile() to avoid invalid matrix usage.
const cmsHPROFILE	dt_colorspaces_get_embedded_profile (const int32_t imgid, dt_colorspaces_color_profile_type_t *type, gboolean *new_profile)
const dt_colorspaces_color_profile_t *	_build_embedded_profile (const int32_t imgid, dt_colorspaces_color_profile_type_t *type)
const dt_colorspaces_color_profile_t *	dt_colorspaces_get_output_profile (const int32_t imgid, dt_colorspaces_color_profile_type_t *over_type, const char *over_filename)
static cmsHPROFILE	dt_colorspaces_create_xyzmatrix_profile (const float mat[3][3])
cmsHPROFILE	dt_colorspaces_create_xyzimatrix_profile (float mat[3][3])
static cmsHPROFILE	_ensure_rgb_profile (cmsHPROFILE profile)
cmsHPROFILE	dt_colorspaces_get_rgb_profile_from_mem (uint8_t *data, uint32_t size)
void	dt_colorspaces_cleanup_profile (cmsHPROFILE p)
void	dt_colorspaces_get_profile_name (cmsHPROFILE p, const char *language, const char *country, char *name, size_t len)
void	rgb2hsl (const dt_aligned_pixel_t rgb, float *h, float *s, float *l)
static	__attribute__ ((always_inline))
void	hsl2rgb (dt_aligned_pixel_t rgb, float h, float s, float l)
static void	_update_display_transforms (dt_colorspaces_t *self)
void	dt_colorspaces_update_display_transforms ()
void	dt_colorspaces_transform_rgba_float_row (const cmsHTRANSFORM transform, const float *in, float *out, const int width)
__DT_CLONE_TARGETS__ void	dt_colorspaces_transform_rgba_float_image (const cmsHTRANSFORM transform, const float *image_in, float *image_out, const int width, const int height)
void	dt_colorspaces_transform_rgba8_to_bgra8 (const cmsHTRANSFORM transform, const uint8_t *image_in, uint8_t *image_out, const int width, const int height)
static void	_update_display_profile (guchar *tmp_data, gsize size, char *name, size_t name_size)
static void	cms_error_handler (cmsContext ContextID, cmsUInt32Number ErrorCode, const char *text)
static gint	_sort_profiles (gconstpointer a, gconstpointer b)
static GList *	load_profile_from_dir (const char *subdir)
dt_colorspaces_t *	dt_colorspaces_init ()
void	dt_colorspaces_cleanup (dt_colorspaces_t *self)
const char *	dt_colorspaces_get_name (dt_colorspaces_color_profile_type_t type, const char *filename)
void	dt_colorspaces_set_display_profile (const dt_colorspaces_color_profile_type_t profile_type)
static gboolean	_colorspaces_is_base_name (const char *profile)
static const char *	_colorspaces_get_base_name (const char *profile)
gboolean	dt_colorspaces_is_profile_equal (const char *fullname, const char *filename)
dt_colorspaces_color_profile_type_t	dt_colorspaces_cicp_to_type (const dt_colorspaces_cicp_t *cicp, const char *filename)
const dt_colorspaces_color_profile_t *	dt_colorspaces_get_profile (dt_colorspaces_color_profile_type_t type, const char *filename, dt_colorspaces_profile_direction_t direction)
static __DT_CLONE_TARGETS__ void	dt_colorspaces_pseudoinverse (double(*in)[3], double(*out)[3], int size)
int	dt_colorspaces_conversion_matrices_xyz (const float adobe_XYZ_to_CAM[4][3], float in_XYZ_to_CAM[9], double XYZ_to_CAM[4][3], double CAM_to_XYZ[3][4])
__DT_CLONE_TARGETS__ int	dt_colorspaces_conversion_matrices_rgb (const float adobe_XYZ_to_CAM[4][3], double out_RGB_to_CAM[4][3], double out_CAM_to_RGB[3][4], const float *embedded_matrix, double mul[4])
void	dt_colorspaces_cygm_apply_coeffs_to_rgb (float *out, const float *in, int num, double RGB_to_CAM[4][3], double CAM_to_RGB[3][4], dt_aligned_pixel_t coeffs)
__DT_CLONE_TARGETS__ void	dt_colorspaces_cygm_to_rgb (float *out, int num, double CAM_to_RGB[3][4])
void	dt_colorspaces_rgb_to_cygm (float *out, int num, double RGB_to_CAM[4][3])

Variables
static const cmsCIEXYZ	d65 = {0.95045471, 1.00000000, 1.08905029}
static const cmsCIExyY	D65xyY = {0.312700492, 0.329000939, 1.0}
static const cmsCIExyY	D50xyY = {0.3457, 0.3585, 1.0}
static const cmsCIExyYTRIPLE	sRGB_Primaries
static const cmsCIExyYTRIPLE	Rec2020_Primaries
static const cmsCIExyYTRIPLE	Rec709_Primaries
static const cmsCIExyYTRIPLE	Adobe_Primaries
static const cmsCIExyYTRIPLE	P3_Primaries
static const cmsCIExyYTRIPLE	ProPhoto_Primaries
cmsCIEXYZTRIPLE	Rec709_Primaries_Prequantized

Macro Definition Documentation

A

#define A	(		y,
			x
	)		src[(y - 1) * 3 + (x - 1)]

Definition at line 186 of file colorspaces.c.

B

#define B	(		y,
			x
	)		dst[(y - 1) * 3 + (x - 1)]

Definition at line 187 of file colorspaces.c.

generate_mat3inv_body

#define generate_mat3inv_body	(		c_type,
			A,
			B
	)

Value:

  int mat3inv_##c_type(c_type *const dst, const c_type *const src)                                           \
  {                                                                                                          \
                                                                                                             \
    const c_type det = A(1, 1) * (A(3, 3) * A(2, 2) - A(3, 2) * A(2, 3))                                     \
                       - A(2, 1) * (A(3, 3) * A(1, 2) - A(3, 2) * A(1, 3))                                   \
                       + A(3, 1) * (A(2, 3) * A(1, 2) - A(2, 2) * A(1, 3));                                  \
                                                                                                             \
    const c_type epsilon = 1e-7f;                                                                            \
    if(fabs(det) < epsilon) return 1;                                                                        \
                                                                                                             \
    const c_type invDet = 1.0 / det;                                                                         \
                                                                                                             \
    B(1, 1) = invDet * (A(3, 3) * A(2, 2) - A(3, 2) * A(2, 3));                                              \
    B(1, 2) = -invDet * (A(3, 3) * A(1, 2) - A(3, 2) * A(1, 3));                                             \
    B(1, 3) = invDet * (A(2, 3) * A(1, 2) - A(2, 2) * A(1, 3));                                              \
                                                                                                             \
    B(2, 1) = -invDet * (A(3, 3) * A(2, 1) - A(3, 1) * A(2, 3));                                             \
    B(2, 2) = invDet * (A(3, 3) * A(1, 1) - A(3, 1) * A(1, 3));                                              \
    B(2, 3) = -invDet * (A(2, 3) * A(1, 1) - A(2, 1) * A(1, 3));                                             \
                                                                                                             \
    B(3, 1) = invDet * (A(3, 2) * A(2, 1) - A(3, 1) * A(2, 2));                                              \
    B(3, 2) = -invDet * (A(3, 2) * A(1, 1) - A(3, 1) * A(1, 2));                                             \
    B(3, 3) = invDet * (A(2, 2) * A(1, 1) - A(2, 1) * A(1, 2));                                              \
    return 0;                                                                                                \
  }

Definition at line 159 of file colorspaces.c.

Function Documentation

__attribute__()

static __attribute__ ( (always_inline)  )

inlinestatic

Definition at line 1443 of file colorspaces.c.

_build_embedded_profile()

const dt_colorspaces_color_profile_t * _build_embedded_profile	(	const int32_t	imgid,
		dt_colorspaces_color_profile_type_t *	type
	)

Definition at line 1180 of file colorspaces.c.

References _create_profile(), darktable_t::color_profiles, container(), darktable, dt_colorspaces_get_embedded_profile(), dt_colorspaces_get_profile_name(), IS_NULL_PTR, dt_colorspaces_t::profiles, and type.

Referenced by dt_colorspaces_get_output_profile().

_colorspaces_create_srgb_profile()

static cmsHPROFILE _colorspaces_create_srgb_profile ( gboolean  v2 )

static

Definition at line 459 of file colorspaces.c.

References _create_lcms_profile(), D65xyY, and sRGB_Primaries.

Referenced by dt_colorspaces_create_srgb_profile(), and dt_colorspaces_create_srgb_profile_v4().

_colorspaces_create_transfer()

static cmsToneCurve * _colorspaces_create_transfer ( int32_t  size, double(*)(double)  fct  )

static

Definition at line 443 of file colorspaces.c.

References dt_free, i, MIN, size, and x.

Referenced by dt_colorspaces_create_hlg_p3_rgb_profile(), dt_colorspaces_create_hlg_rec2020_rgb_profile(), dt_colorspaces_create_pq_p3_rgb_profile(), and dt_colorspaces_create_pq_rec2020_rgb_profile().

_colorspaces_get_base_name()

static const char * _colorspaces_get_base_name ( const char *  profile )

static

Definition at line 2251 of file colorspaces.c.

References f.

Referenced by dt_colorspaces_is_profile_equal().

_colorspaces_is_base_name()

static gboolean _colorspaces_is_base_name ( const char *  profile )

static

Definition at line 2240 of file colorspaces.c.

References f, FALSE, and TRUE.

Referenced by dt_colorspaces_is_profile_equal().

_compute_prequantized_primaries()

static void _compute_prequantized_primaries ( const cmsCIExyY *  whitepoint, const cmsCIExyYTRIPLE *  primaries, cmsCIEXYZTRIPLE *  primaries_prequantized  )

static

Definition at line 337 of file colorspaces.c.

References B, double(), and R.

Referenced by dt_colorspaces_init().

_create_lcms_profile()

static cmsHPROFILE _create_lcms_profile ( const char *  desc, const char *  dmdd, const cmsCIExyY *  whitepoint, const cmsCIExyYTRIPLE *  primaries, cmsToneCurve *  trc, gboolean  v2  )

static

Definition at line 362 of file colorspaces.c.

Referenced by _colorspaces_create_srgb_profile(), dt_colorspaces_create_adobergb_profile(), dt_colorspaces_create_brg_profile(), dt_colorspaces_create_display_p3_rgb_profile(), dt_colorspaces_create_gamma_rec709_rgb_profile(), dt_colorspaces_create_hlg_p3_rgb_profile(), dt_colorspaces_create_hlg_rec2020_rgb_profile(), dt_colorspaces_create_itur_bt1886_rgb_profile(), dt_colorspaces_create_linear_infrared_profile(), dt_colorspaces_create_linear_prophoto_rgb_profile(), dt_colorspaces_create_linear_rec2020_rgb_profile(), dt_colorspaces_create_linear_rec709_rgb_profile(), dt_colorspaces_create_pq_p3_rgb_profile(), and dt_colorspaces_create_pq_rec2020_rgb_profile().

_create_profile()

static dt_colorspaces_color_profile_t * _create_profile ( dt_colorspaces_color_profile_type_t  type, cmsHPROFILE  profile, const char *  name, int  in_pos, int  out_pos, int  display_pos, int  category_pos, int  work_pos  )

static

Definition at line 1471 of file colorspaces.c.

References dt_colorspaces_color_profile_t::category_pos, dt_colorspaces_color_profile_t::display_pos, dt_colorspaces_color_profile_t::in_pos, dt_colorspaces_color_profile_t::name, name, dt_colorspaces_color_profile_t::out_pos, dt_colorspaces_color_profile_t::profile, dt_colorspaces_color_profile_t::type, type, and dt_colorspaces_color_profile_t::work_pos.

Referenced by _build_embedded_profile(), and dt_colorspaces_init().

_ensure_rgb_profile()

static cmsHPROFILE _ensure_rgb_profile ( cmsHPROFILE  profile )

static

Todo:

: we still use prequantized primaries here, we will probably want to rework this

Definition at line 1307 of file colorspaces.c.

References Rec709_Primaries_Prequantized.

Referenced by dt_colorspaces_get_rgb_profile_from_mem(), and load_profile_from_dir().

_get_profile()

static const dt_colorspaces_color_profile_t * _get_profile ( dt_colorspaces_t *  self, dt_colorspaces_color_profile_type_t  type, const char *  filename, dt_colorspaces_profile_direction_t  direction  )

static

Definition at line 2507 of file colorspaces.c.

References DT_COLORSPACE_FILE, dt_colorspaces_is_profile_equal(), DT_PROFILE_DIRECTION_DISPLAY, DT_PROFILE_DIRECTION_IN, DT_PROFILE_DIRECTION_OUT, DT_PROFILE_DIRECTION_WORK, p, dt_colorspaces_t::profiles, and type.

Referenced by _update_display_transforms(), and dt_colorspaces_get_profile().

_HLG_fct()

static double _HLG_fct ( double  x )

static

BT.2100 HLG EOTF inverse, mapping non-linear HLG code values to linear light. The standard is defined on [0, +inf), but we extend it by odd symmetry so profile round-trips keep signed RGB values continuous around black instead of clipping negative excursions.

Definition at line 422 of file colorspaces.c.

References A, B, C, sign, and x.

Referenced by dt_colorspaces_create_hlg_p3_rgb_profile(), and dt_colorspaces_create_hlg_rec2020_rgb_profile().

_PQ_fct()

static double _PQ_fct ( double  x )

static

Definition at line 400 of file colorspaces.c.

References MAX, sign, and x.

Referenced by dt_colorspaces_create_pq_p3_rgb_profile(), and dt_colorspaces_create_pq_rec2020_rgb_profile().

_sort_profiles()

static gint _sort_profiles ( gconstpointer  a, gconstpointer  b  )

static

Definition at line 1639 of file colorspaces.c.

References dt_free, and dt_colorspaces_color_profile_t::name.

Referenced by load_profile_from_dir().

_update_display_profile()

static void _update_display_profile ( guchar *  tmp_data, gsize  size, char *  name, size_t  name_size  )

static

Definition at line 1606 of file colorspaces.c.

References darktable_t::color_profiles, darktable, DT_COLORSPACE_DISPLAY, dt_colorspaces_cleanup_profile(), dt_colorspaces_get_profile_name(), dt_colorspaces_update_display_transforms(), dt_free, name, p, dt_colorspaces_t::profiles, size, dt_colorspaces_t::xprofile_data, and dt_colorspaces_t::xprofile_size.

Referenced by dt_colorspaces_set_display_profile().

_update_display_transforms()

static void _update_display_transforms ( dt_colorspaces_t *  self )

static

Definition at line 1490 of file colorspaces.c.

References _get_profile(), dt_colorspaces_t::display_filename, dt_colorspaces_t::display_intent, dt_colorspaces_t::display_type, DT_COLORSPACE_ADOBERGB, DT_COLORSPACE_SRGB, DT_COLORSPACE_XYZ, DT_PROFILE_DIRECTION_DISPLAY, DT_PROFILE_DIRECTION_IN, IS_NULL_PTR, dt_colorspaces_color_profile_t::profile, dt_colorspaces_t::transform_adobe_rgb_to_display, dt_colorspaces_t::transform_display_to_adobe_rgb, dt_colorspaces_t::transform_srgb_to_display, dt_colorspaces_t::transform_xyz_to_display, and TYPE_XYZA_FLT.

Referenced by dt_colorspaces_init(), and dt_colorspaces_update_display_transforms().

cms_error_handler()

static void cms_error_handler ( cmsContext  ContextID, cmsUInt32Number  ErrorCode, const char *  text  )

static

Definition at line 1634 of file colorspaces.c.

References DT_DEBUG_COLORPROFILE, and dt_print().

Referenced by dt_colorspaces_init().

dt_colorspaces_cicp_to_type()

dt_colorspaces_color_profile_type_t dt_colorspaces_cicp_to_type	(	const dt_colorspaces_cicp_t *	cicp,
		const char *	filename
	)

try to infer profile type from CICP

Definition at line 2272 of file colorspaces.c.

References dt_colorspaces_cicp_t::color_primaries, DT_CICP_COLOR_PRIMARIES_P3, DT_CICP_COLOR_PRIMARIES_REC2020, DT_CICP_COLOR_PRIMARIES_REC709, DT_CICP_COLOR_PRIMARIES_UNSPECIFIED, DT_CICP_COLOR_PRIMARIES_XYZ, DT_CICP_MATRIX_COEFFICIENTS_CHROMA_DERIVED_NCL, DT_CICP_MATRIX_COEFFICIENTS_IDENTITY, DT_CICP_MATRIX_COEFFICIENTS_REC2020_NCL, DT_CICP_MATRIX_COEFFICIENTS_REC601, DT_CICP_MATRIX_COEFFICIENTS_REC709, DT_CICP_MATRIX_COEFFICIENTS_SYCC, DT_CICP_MATRIX_COEFFICIENTS_UNSPECIFIED, DT_CICP_TRANSFER_CHARACTERISTICS_HLG, DT_CICP_TRANSFER_CHARACTERISTICS_LINEAR, DT_CICP_TRANSFER_CHARACTERISTICS_PQ, DT_CICP_TRANSFER_CHARACTERISTICS_REC2020_10B, DT_CICP_TRANSFER_CHARACTERISTICS_REC2020_12B, DT_CICP_TRANSFER_CHARACTERISTICS_REC601, DT_CICP_TRANSFER_CHARACTERISTICS_REC709, DT_CICP_TRANSFER_CHARACTERISTICS_SRGB, DT_CICP_TRANSFER_CHARACTERISTICS_UNSPECIFIED, DT_COLORSPACE_DISPLAY_P3, DT_COLORSPACE_HLG_P3, DT_COLORSPACE_HLG_REC2020, DT_COLORSPACE_LIN_REC2020, DT_COLORSPACE_LIN_REC709, DT_COLORSPACE_NONE, DT_COLORSPACE_PQ_P3, DT_COLORSPACE_PQ_REC2020, DT_COLORSPACE_REC709, DT_COLORSPACE_SRGB, DT_COLORSPACE_XYZ, DT_DEBUG_IMAGEIO, dt_print(), IS_NULL_PTR, dt_colorspaces_cicp_t::matrix_coefficients, and dt_colorspaces_cicp_t::transfer_characteristics.

Referenced by dt_image_find_best_color_profile().

dt_colorspaces_cleanup()

void dt_colorspaces_cleanup

(

dt_colorspaces_t *

self

)

cleanup on shutdown

Definition at line 1911 of file colorspaces.c.

References dt_colorspaces_t::colord_profile_file, dt_colorspaces_t::display_filename, dt_colorspaces_t::display_intent, dt_colorspaces_t::display_type, dt_colorspaces_cleanup_profile(), dt_conf_set_int(), dt_conf_set_string(), dt_free, dt_free_gpointer(), dt_colorspaces_t::mode, p, dt_colorspaces_t::profiles, dt_colorspaces_t::softproof_filename, dt_colorspaces_t::softproof_intent, dt_colorspaces_t::softproof_type, dt_colorspaces_t::transform_adobe_rgb_to_display, dt_colorspaces_t::transform_display_to_adobe_rgb, dt_colorspaces_t::transform_srgb_to_display, dt_colorspaces_t::transform_xyz_to_display, dt_colorspaces_t::xprofile_data, and dt_colorspaces_t::xprofile_lock.

Referenced by dt_cleanup().

dt_colorspaces_cleanup_profile()

void dt_colorspaces_cleanup_profile

(

cmsHPROFILE

p

)

free the resources of a profile created with the functions above.

Definition at line 1362 of file colorspaces.c.

References IS_NULL_PTR, and p.

Referenced by _update_display_profile(), cleanup_pipe(), commit_params(), dt_colorspaces_cleanup(), and dt_colorspaces_get_input_profile_from_image().

dt_colorspaces_conversion_matrices_rgb()

__DT_CLONE_TARGETS__ int dt_colorspaces_conversion_matrices_rgb	(	const float	adobe_XYZ_to_CAM[4][3],
		double	RGB_to_CAM[4][3],
		double	CAM_to_RGB[3][4],
		const float *	embedded_matrix,
		double	mul[4]
	)

Calculate CAM->RGB, RGB->CAM matrices and default WB multipliers

Definition at line 2601 of file colorspaces.c.

References dt_colorspaces_pseudoinverse(), FALSE, i, IS_NULL_PTR, k, and TRUE.

Referenced by _custom_wb_from_coeffs(), calculate_bogus_daylight_wb(), commit_params(), gui_update(), and legacy_params().

dt_colorspaces_conversion_matrices_xyz()

int dt_colorspaces_conversion_matrices_xyz	(	const float	adobe_XYZ_to_CAM[4][3],
		float	in_XYZ_to_CAM[9],
		double	XYZ_to_CAM[4][3],
		double	CAM_to_XYZ[3][4]
	)

Calculate CAM->XYZ, XYZ->CAM matrices

Definition at line 2569 of file colorspaces.c.

References dt_colorspaces_pseudoinverse(), FALSE, i, and TRUE.

Referenced by prepare_matrices().

dt_colorspaces_create_adobergb_profile()

static cmsHPROFILE dt_colorspaces_create_adobergb_profile ( void  )

static

Definition at line 525 of file colorspaces.c.

References _create_lcms_profile(), Adobe_Primaries, D65xyY, and TRUE.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_alternate_profile()

cmsHPROFILE dt_colorspaces_create_alternate_profile

(

const char *

makermodel

)

create a ICC virtual profile from the shipped alternate matrices in darktable.

Definition at line 539 of file colorspaces.c.

References dt_alternate_colormatrices, dt_alternate_colormatrix_cnt, IS_NULL_PTR, k, name, and preset.

Referenced by _resolve_input_profile().

dt_colorspaces_create_brg_profile()

static cmsHPROFILE dt_colorspaces_create_brg_profile ( )

static

Definition at line 482 of file colorspaces.c.

References _create_lcms_profile(), D65xyY, sRGB_Primaries, and TRUE.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_darktable_profile()

cmsHPROFILE dt_colorspaces_create_darktable_profile

(

const char *

makermodel

)

create a ICC virtual profile from the shipped presets in darktable.

Definition at line 639 of file colorspaces.c.

References dt_profiled_colormatrices, dt_profiled_colormatrix_cnt, IS_NULL_PTR, k, name, and preset.

Referenced by _resolve_input_profile().

dt_colorspaces_create_display_p3_rgb_profile()

static cmsHPROFILE dt_colorspaces_create_display_p3_rgb_profile ( void  )

static

Definition at line 787 of file colorspaces.c.

References _create_lcms_profile(), D65xyY, P3_Primaries, and TRUE.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_gamma_rec709_rgb_profile()

static cmsHPROFILE dt_colorspaces_create_gamma_rec709_rgb_profile ( void  )

static

Definition at line 497 of file colorspaces.c.

References _create_lcms_profile(), D65xyY, Rec709_Primaries, and TRUE.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_hlg_p3_rgb_profile()

static cmsHPROFILE dt_colorspaces_create_hlg_p3_rgb_profile ( void  )

static

Definition at line 775 of file colorspaces.c.

References _colorspaces_create_transfer(), _create_lcms_profile(), _HLG_fct(), D65xyY, P3_Primaries, and TRUE.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_hlg_rec2020_rgb_profile()

static cmsHPROFILE dt_colorspaces_create_hlg_rec2020_rgb_profile ( void  )

static

Definition at line 751 of file colorspaces.c.

References _colorspaces_create_transfer(), _create_lcms_profile(), _HLG_fct(), D65xyY, Rec2020_Primaries, and TRUE.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_itur_bt1886_rgb_profile()

static cmsHPROFILE dt_colorspaces_create_itur_bt1886_rgb_profile ( void  )

static

Definition at line 510 of file colorspaces.c.

References _create_lcms_profile(), D65xyY, Rec709_Primaries, and TRUE.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_lab_profile()

static cmsHPROFILE dt_colorspaces_create_lab_profile ( )

static

Definition at line 332 of file colorspaces.c.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_linear_infrared_profile()

static cmsHPROFILE dt_colorspaces_create_linear_infrared_profile ( void  )

static

Definition at line 812 of file colorspaces.c.

References _create_lcms_profile(), D65xyY, FALSE, and sRGB_Primaries.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_linear_prophoto_rgb_profile()

static cmsHPROFILE dt_colorspaces_create_linear_prophoto_rgb_profile ( void  )

static

Definition at line 800 of file colorspaces.c.

References _create_lcms_profile(), D50xyY, ProPhoto_Primaries, and TRUE.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_linear_rec2020_rgb_profile()

static cmsHPROFILE dt_colorspaces_create_linear_rec2020_rgb_profile ( void  )

static

Definition at line 727 of file colorspaces.c.

References _create_lcms_profile(), D65xyY, Rec2020_Primaries, and TRUE.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_linear_rec709_rgb_profile()

static cmsHPROFILE dt_colorspaces_create_linear_rec709_rgb_profile ( void  )

static

Definition at line 715 of file colorspaces.c.

References _create_lcms_profile(), D65xyY, Rec709_Primaries, and TRUE.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_pq_p3_rgb_profile()

static cmsHPROFILE dt_colorspaces_create_pq_p3_rgb_profile ( void  )

static

Definition at line 763 of file colorspaces.c.

References _colorspaces_create_transfer(), _create_lcms_profile(), _PQ_fct(), D65xyY, P3_Primaries, and TRUE.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_pq_rec2020_rgb_profile()

static cmsHPROFILE dt_colorspaces_create_pq_rec2020_rgb_profile ( void  )

static

Definition at line 739 of file colorspaces.c.

References _colorspaces_create_transfer(), _create_lcms_profile(), _PQ_fct(), D65xyY, Rec2020_Primaries, and TRUE.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_srgb_profile()

static cmsHPROFILE dt_colorspaces_create_srgb_profile ( )

static

Definition at line 472 of file colorspaces.c.

References _colorspaces_create_srgb_profile(), and TRUE.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_srgb_profile_v4()

static cmsHPROFILE dt_colorspaces_create_srgb_profile_v4 ( )

static

Definition at line 477 of file colorspaces.c.

References _colorspaces_create_srgb_profile(), and FALSE.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_vendor_profile()

cmsHPROFILE dt_colorspaces_create_vendor_profile

(

const char *

makermodel

)

create a ICC virtual profile from the shipped vendor matrices in darktable.

Definition at line 589 of file colorspaces.c.

References dt_vendor_colormatrices, dt_vendor_colormatrix_cnt, IS_NULL_PTR, k, name, and preset.

Referenced by _resolve_input_profile().

dt_colorspaces_create_xyz_profile()

static cmsHPROFILE dt_colorspaces_create_xyz_profile ( void  )

static

Definition at line 689 of file colorspaces.c.

References IS_NULL_PTR.

Referenced by dt_colorspaces_init().

dt_colorspaces_create_xyzimatrix_profile()

cmsHPROFILE dt_colorspaces_create_xyzimatrix_profile

(

float

cam_xyz[3][3]

)

create a profile from a xyz->camera matrix.

Definition at line 1299 of file colorspaces.c.

References dt_colorspaces_create_xyzmatrix_profile(), and mat3inv().

Referenced by dt_colorspaces_get_input_profile_from_image(), and dt_image_find_best_color_profile().

dt_colorspaces_create_xyzmatrix_profile()

static cmsHPROFILE dt_colorspaces_create_xyzmatrix_profile ( const float  mat[3][3] )

static

Definition at line 1259 of file colorspaces.c.

References d65, IS_NULL_PTR, k, and x.

Referenced by dt_colorspaces_create_xyzimatrix_profile().

dt_colorspaces_cygm_apply_coeffs_to_rgb()

void dt_colorspaces_cygm_apply_coeffs_to_rgb	(	float *	out,
		const float *	in,
		int	num,
		double	RGB_to_CAM[4][3],
		double	CAM_to_RGB[3][4],
		dt_aligned_pixel_t	coeffs
	)

Applies CYGM WB coeffs to an image that's already been converted to RGB by dt_colorspaces_cygm_to_rgb

Todo:

: CRITICAL: why is this function NOT used anywhere ???

Definition at line 2681 of file colorspaces.c.

References __OMP_PARALLEL_FOR__, i, and out.

dt_colorspaces_cygm_to_rgb()

__DT_CLONE_TARGETS__ void dt_colorspaces_cygm_to_rgb	(	float *	out,
		int	num,
		double	CAM_to_RGB[3][4]
	)

convert CYGM buffer to RGB

Definition at line 2711 of file colorspaces.c.

References __OMP_PARALLEL_FOR__, i, k, and out.

Referenced by gui_update_from_coeffs(), and process().

dt_colorspaces_get_embedded_profile()

const cmsHPROFILE dt_colorspaces_get_embedded_profile	(	const int32_t	imgid,
		dt_colorspaces_color_profile_type_t *	type,
		gboolean *	new_profile
	)

return the embedded profile of a particular image

Definition at line 1172 of file colorspaces.c.

References dt_image_find_best_color_profile(), and type.

Referenced by _build_embedded_profile(), and commit_params().

dt_colorspaces_get_input_profile_from_image()

dt_colorspaces_color_profile_type_t dt_colorspaces_get_input_profile_from_image	(	int32_t	imgid,
		dt_colorspaces_color_profile_type_t	requested,
		cmsHPROFILE *	output,
		gboolean *	new_profile
	)

Resolve an embedded/matrix input profile for a given image, honoring the requested type when possible. For non-RAW images, falls back to dt_image_find_best_color_profile() to avoid invalid matrix usage.

Parameters

imgid	ID of the picture
requested	Requested embedded/matrix profile type
output	If not NULL, writes the generated color profile into this pointer.
new_profile	Will be set to true if a new profile was generated (aka embedded profile) and will need to be freed.

Returns

dt_colorspaces_color_profile_type_t resolved type, or DT_COLORSPACE_NONE on error.

Definition at line 1067 of file colorspaces.c.

References dt_image_t::adobe_XYZ_to_CAM, dt_image_t::d65_color_matrix, darktable, DT_COLORSPACE_EMBEDDED_ICC, DT_COLORSPACE_EMBEDDED_MATRIX, DT_COLORSPACE_LIN_REC709, DT_COLORSPACE_NONE, DT_COLORSPACE_STANDARD_MATRIX, dt_colorspaces_cleanup_profile(), dt_colorspaces_create_xyzimatrix_profile(), dt_colorspaces_get_rgb_profile_from_mem(), dt_image_cache_get(), dt_image_cache_read_release(), dt_image_find_best_color_profile(), dt_image_is_matrix_correction_supported(), FALSE, darktable_t::image_cache, IS_NULL_PTR, dt_image_t::profile, dt_image_t::profile_size, TRUE, and type.

Referenced by _resolve_input_profile().

dt_colorspaces_get_matrix_from_input_profile()

int dt_colorspaces_get_matrix_from_input_profile	(	cmsHPROFILE	prof,
		dt_colormatrix_t	matrix,
		float *	lutr,
		float *	lutg,
		float *	lutb,
		const int	lutsize
	)

extracts tonecurves and color matrix prof to XYZ from a given input profile, returns 0 on success (curves and matrix are inverted for input)

Definition at line 320 of file colorspaces.c.

References dt_colorspaces_get_matrix_from_profile(), lutsize, and matrix.

Referenced by commit_params(), dt_colorspaces_init(), and dt_ioppr_generate_profile_info().

dt_colorspaces_get_matrix_from_output_profile()

int dt_colorspaces_get_matrix_from_output_profile	(	cmsHPROFILE	prof,
		dt_colormatrix_t	matrix,
		float *	lutr,
		float *	lutg,
		float *	lutb,
		const int	lutsize
	)

extracts tonecurves and color matrix prof to XYZ from a given output profile, returns 0 on success.

Definition at line 326 of file colorspaces.c.

References dt_colorspaces_get_matrix_from_profile(), lutsize, and matrix.

Referenced by commit_params(), dt_colorspaces_init(), and dt_ioppr_generate_profile_info().

dt_colorspaces_get_matrix_from_profile()

static __DT_CLONE_TARGETS__ int dt_colorspaces_get_matrix_from_profile ( cmsHPROFILE  prof, dt_colormatrix_t  matrix, float *  lutr, float *  lutg, float *  lutb, const int  lutsize, const int  input  )

static

Definition at line 208 of file colorspaces.c.

References IS_NULL_PTR, k, lutsize, mat3SSEinv(), and matrix.

Referenced by dt_colorspaces_get_matrix_from_input_profile(), and dt_colorspaces_get_matrix_from_output_profile().

dt_colorspaces_get_name()

const char * dt_colorspaces_get_name	(	dt_colorspaces_color_profile_type_t	type,
		const char *	filename
	)

get a nice printable name.

Definition at line 1949 of file colorspaces.c.

References DT_COLORSPACE_ADOBERGB, DT_COLORSPACE_ALTERNATE_MATRIX, DT_COLORSPACE_BRG, DT_COLORSPACE_DISPLAY, DT_COLORSPACE_DISPLAY2, DT_COLORSPACE_DISPLAY_P3, DT_COLORSPACE_EMBEDDED_ICC, DT_COLORSPACE_EMBEDDED_MATRIX, DT_COLORSPACE_ENHANCED_MATRIX, DT_COLORSPACE_EXPORT, DT_COLORSPACE_FILE, DT_COLORSPACE_HLG_P3, DT_COLORSPACE_HLG_REC2020, DT_COLORSPACE_INFRARED, DT_COLORSPACE_ITUR_BT1886, DT_COLORSPACE_LAB, DT_COLORSPACE_LAST, DT_COLORSPACE_LIN_REC2020, DT_COLORSPACE_LIN_REC709, DT_COLORSPACE_NONE, DT_COLORSPACE_PQ_P3, DT_COLORSPACE_PQ_REC2020, DT_COLORSPACE_PROPHOTO_RGB, DT_COLORSPACE_REC709, DT_COLORSPACE_SOFTPROOF, DT_COLORSPACE_SRGB, DT_COLORSPACE_STANDARD_MATRIX, DT_COLORSPACE_VENDOR_MATRIX, DT_COLORSPACE_WORK, DT_COLORSPACE_XYZ, and type.

Referenced by _ioporder_runtime_band_text(), _resolve_work_profile(), _save_clut_callback(), commit_params(), gui_update(), profile_changed(), update_profile_list(), workicc_changed(), and write_image().

dt_colorspaces_get_output_profile()

const dt_colorspaces_color_profile_t * dt_colorspaces_get_output_profile	(	const int32_t	imgid,
		dt_colorspaces_color_profile_type_t *	over_type,
		const char *	over_filename
	)

return the output profile as set in colorout, taking export override into account if passed in.

Definition at line 1203 of file colorspaces.c.

References _build_embedded_profile(), DT_COLORSPACE_EMBEDDED_ICC, DT_COLORSPACE_EMBEDDED_MATRIX, DT_COLORSPACE_NONE, DT_COLORSPACE_SRGB, DT_COLORSPACE_STANDARD_MATRIX, dt_colorspaces_get_profile(), DT_PROFILE_DIRECTION_DISPLAY, DT_PROFILE_DIRECTION_OUT, IS_NULL_PTR, and p.

Referenced by _export_image(), dt_imageio_export_with_flags(), dt_imageio_jpeg_write_with_icc_profile(), write_image(), write_image(), write_image(), write_image(), write_image(), write_image(), and write_image().

dt_colorspaces_get_profile()

const dt_colorspaces_color_profile_t * dt_colorspaces_get_profile	(	dt_colorspaces_color_profile_type_t	type,
		const char *	filename,
		dt_colorspaces_profile_direction_t	direction
	)

get the profile described by type & filename. this doesn't support image specifics like embedded profiles or camera matrices

Definition at line 2529 of file colorspaces.c.

References _get_profile(), darktable_t::color_profiles, darktable, and type.

Referenced by _export_image(), _get_xyz_to_rgb_matrix(), _icc_blob_from_profile_key(), _read_chunky_16_Lab(), _read_chunky_8_Lab(), _resolve_input_profile(), _select_normalization_profile(), _transform_from_to_rgb_lab_lcms2(), _view_image_get_surface_internal(), commit_params(), dt_colorspaces_get_output_profile(), dt_colorspaces_get_work_profile(), dt_image_find_best_color_profile(), dt_imageio_tiff_read_profile(), dt_ioppr_generate_profile_info(), dt_mipmap_cache_swap_at_size(), and gui_init().

dt_colorspaces_get_profile_name()

void dt_colorspaces_get_profile_name	(	cmsHPROFILE	p,
		const char *	language,
		const char *	country,
		char *	name,
		size_t	len
	)

wrapper to get the name from a color profile. this tries to handle character encodings.

Definition at line 1368 of file colorspaces.c.

References dt_free, error(), IS_NULL_PTR, name, p, and size.

Referenced by _build_embedded_profile(), _update_display_profile(), load_profile_from_dir(), and write_image().

dt_colorspaces_get_rgb_profile_from_mem()

cmsHPROFILE dt_colorspaces_get_rgb_profile_from_mem	(	uint8_t *	data,
		uint32_t	size
	)

return an rgb lcms2 profile from data. if data points to a grayscale profile a new rgb profile is created that has the same TRC, black and white point and rec709 primaries.

Definition at line 1355 of file colorspaces.c.

References _ensure_rgb_profile(), and size.

Referenced by dt_colorspaces_get_input_profile_from_image(), and dt_image_find_best_color_profile().

dt_colorspaces_get_work_profile()

const dt_colorspaces_color_profile_t * dt_colorspaces_get_work_profile

(

const int32_t

imgid

)

return the work profile as set in colorin

Todo:

: does this work when using JPEG thumbs and the image was never opened?

Definition at line 827 of file colorspaces.c.

References darktable, darktable_t::db, DT_COLORSPACE_LIN_REC2020, dt_colorspaces_get_profile(), dt_database_get(), DT_DEBUG_SQLITE3_BIND_INT, DT_DEBUG_SQLITE3_PREPARE_V2, DT_PROFILE_DIRECTION_WORK, darktable_t::iop, IS_NULL_PTR, p, and type.

dt_colorspaces_init()

dt_colorspaces_t * dt_colorspaces_init

(

)

populate the global color profile lists

Todo:

: what about display?

Todo:

: do want to filter out non-RGB profiles for cases besides histogram profile? colorin is OK with RGB or XYZ, print is OK with anything which LCMS likes, otherwise things are more choosey

Definition at line 1720 of file colorspaces.c.

References _compute_prequantized_primaries(), _create_profile(), _update_display_transforms(), dt_colorspaces_color_profile_t::category_pos, cms_error_handler(), color_space, D65xyY, dt_colorspaces_t::display_filename, dt_colorspaces_t::display_intent, dt_colorspaces_color_profile_t::display_pos, dt_colorspaces_t::display_type, DT_COLORSPACE_ADOBERGB, DT_COLORSPACE_BRG, DT_COLORSPACE_DISPLAY, DT_COLORSPACE_DISPLAY_P3, DT_COLORSPACE_EXPORT, DT_COLORSPACE_FILE, DT_COLORSPACE_HLG_P3, DT_COLORSPACE_HLG_REC2020, DT_COLORSPACE_INFRARED, DT_COLORSPACE_ITUR_BT1886, DT_COLORSPACE_LAB, DT_COLORSPACE_LAST, DT_COLORSPACE_LIN_REC2020, DT_COLORSPACE_LIN_REC709, DT_COLORSPACE_PQ_P3, DT_COLORSPACE_PQ_REC2020, DT_COLORSPACE_PROPHOTO_RGB, DT_COLORSPACE_REC709, DT_COLORSPACE_SOFTPROOF, DT_COLORSPACE_SRGB, DT_COLORSPACE_WORK, DT_COLORSPACE_XYZ, dt_colorspaces_create_adobergb_profile(), dt_colorspaces_create_brg_profile(), dt_colorspaces_create_display_p3_rgb_profile(), dt_colorspaces_create_gamma_rec709_rgb_profile(), dt_colorspaces_create_hlg_p3_rgb_profile(), dt_colorspaces_create_hlg_rec2020_rgb_profile(), dt_colorspaces_create_itur_bt1886_rgb_profile(), dt_colorspaces_create_lab_profile(), dt_colorspaces_create_linear_infrared_profile(), dt_colorspaces_create_linear_prophoto_rgb_profile(), dt_colorspaces_create_linear_rec2020_rgb_profile(), dt_colorspaces_create_linear_rec709_rgb_profile(), dt_colorspaces_create_pq_p3_rgb_profile(), dt_colorspaces_create_pq_rec2020_rgb_profile(), dt_colorspaces_create_srgb_profile(), dt_colorspaces_create_srgb_profile_v4(), dt_colorspaces_create_xyz_profile(), dt_colorspaces_get_matrix_from_input_profile(), dt_colorspaces_get_matrix_from_output_profile(), dt_conf_get_bool(), dt_conf_get_int(), dt_conf_get_string_const(), DT_DEBUG_DEV, dt_print(), DT_PROFILE_GAMUTCHECK, DT_PROFILE_NORMAL, dt_colorspaces_color_profile_t::in_pos, load_profile_from_dir(), dt_colorspaces_t::mode, dt_colorspaces_color_profile_t::name, dt_colorspaces_color_profile_t::out_pos, dt_colorspaces_color_profile_t::profile, dt_colorspaces_t::profiles, Rec709_Primaries, Rec709_Primaries_Prequantized, dt_colorspaces_t::softproof_filename, dt_colorspaces_t::softproof_intent, dt_colorspaces_t::softproof_type, dt_colorspaces_color_profile_t::work_pos, and dt_colorspaces_t::xprofile_lock.

Referenced by dt_init().

dt_colorspaces_is_profile_equal()

gboolean dt_colorspaces_is_profile_equal	(	const char *	fullname,
		const char *	filename
	)

check whether filename is the same profil as fullname, this is taking into account that fullname is always the fullpathname to the profile and filename may be a full pathname or just a base name

Definition at line 2262 of file colorspaces.c.

References _colorspaces_get_base_name(), and _colorspaces_is_base_name().

Referenced by _get_profile(), _resolve_work_profile(), and gui_update().

dt_colorspaces_pseudoinverse()

static __DT_CLONE_TARGETS__ void dt_colorspaces_pseudoinverse ( double(*)  in[3], double(*)  out[3], int  size  )

static

Definition at line 2538 of file colorspaces.c.

References i, k, out, and size.

Referenced by dt_colorspaces_conversion_matrices_rgb(), and dt_colorspaces_conversion_matrices_xyz().

dt_colorspaces_rgb_to_cygm()

void dt_colorspaces_rgb_to_cygm	(	float *	out,
		int	num,
		double	RGB_to_CAM[4][3]
	)

convert RGB buffer to CYGM

Definition at line 2726 of file colorspaces.c.

References __OMP_PARALLEL_FOR__, i, k, and out.

Referenced by colorpicker_callback(), and legacy_params().

dt_colorspaces_set_display_profile()

void dt_colorspaces_set_display_profile

(

const dt_colorspaces_color_profile_type_t

profile_type

)

trigger updating the display profile from the system settings (x atom, colord, ...)

Todo:

: benchmark if the try is really needed when moving/resizing the window. Maybe we can just lock it

Definition at line 2091 of file colorspaces.c.

References _update_display_profile(), darktable_t::color_profiles, darktable, darktable_t::develop, DT_COLORSPACE_DISPLAY2, dt_conf_get_string_const(), dt_control_running(), DT_DEBUG_CONTROL, DT_DEBUG_CONTROL_SIGNAL_RAISE, dt_free, dt_print(), DT_SIGNAL_CONTROL_PROFILE_CHANGED, dt_ui_center(), FALSE, darktable_t::gui, IS_NULL_PTR, L, name, profile_changed(), darktable_t::signals, size, TRUE, type, dt_gui_gtk_t::ui, window, dt_colorspaces_t::xprofile_data, dt_colorspaces_t::xprofile_lock, and dt_colorspaces_t::xprofile_size.

Referenced by _configure(), _window_configure(), and dt_gui_gtk_init().

dt_colorspaces_transform_rgba8_to_bgra8()

void dt_colorspaces_transform_rgba8_to_bgra8	(	const cmsHTRANSFORM	transform,
		const uint8_t *	image_in,
		uint8_t *	image_out,
		const int	width,
		const int	height
	)

Definition at line 1574 of file colorspaces.c.

References __OMP_PARALLEL_FOR__, height, IS_NULL_PTR, out, transform(), width, and x.

Referenced by _view_image_get_surface_internal(), and dt_mipmap_cache_swap_at_size().

dt_colorspaces_transform_rgba_float_image()

__DT_CLONE_TARGETS__ void dt_colorspaces_transform_rgba_float_image	(	const cmsHTRANSFORM	transform,
		const float *	image_in,
		float *	image_out,
		const int	width,
		const int	height
	)

Definition at line 1558 of file colorspaces.c.

References __OMP_PARALLEL_FOR__, dt_colorspaces_transform_rgba_float_row(), height, IS_NULL_PTR, out, transform(), and width.

Referenced by _transform_from_to_rgb_lab_lcms2().

dt_colorspaces_transform_rgba_float_row()

void dt_colorspaces_transform_rgba_float_row	(	const cmsHTRANSFORM	transform,
		const float *	in,
		float *	out,
		const int	width
	)

Definition at line 1551 of file colorspaces.c.

References out, transform(), and width.

Referenced by dt_colorspaces_transform_rgba_float_image(), process(), process_lcms2_bm(), and process_lcms2_proper().

dt_colorspaces_update_display_transforms()

void dt_colorspaces_update_display_transforms

(

)

update the display transforms of srgb and adobergb to the display profile. make sure that darktable.color_profiles->xprofile_lock is held when calling this!

Definition at line 1546 of file colorspaces.c.

References _update_display_transforms(), darktable_t::color_profiles, and darktable.

Referenced by _update_display_profile(), intent_callback(), and profile_callback().

dt_image_find_best_color_profile()

dt_colorspaces_color_profile_type_t dt_image_find_best_color_profile	(	int32_t	imgid,
		cmsHPROFILE *	output,
		gboolean *	new_profile
	)

Best effort to find a suitable (input) color profile for a given image, using embedded ICC or EXIF whenever possible. This will also init the profile in the image cache.

Parameters

imgid	ID of the picture
output	If not NULL, writes the generated color profile into this pointer.
new_profile	Will be set to true if a new profile was generated (aka embedded profile) and will need to be freed. If false and output profile is returned, the profile returned already exists on the public list of profiles and should not be freed.

Returns

dt_colorspaces_color_profile_type_t type of profile detected. This type is tested internally and guaranteed to work.

Definition at line 877 of file colorspaces.c.

References dt_image_t::adobe_XYZ_to_CAM, dt_image_t::colorspace, dt_image_t::d65_color_matrix, darktable, DT_COLORSPACE_ADOBERGB, DT_COLORSPACE_EMBEDDED_ICC, DT_COLORSPACE_EMBEDDED_MATRIX, DT_COLORSPACE_LIN_REC2020, DT_COLORSPACE_LIN_REC709, DT_COLORSPACE_NONE, DT_COLORSPACE_SRGB, DT_COLORSPACE_STANDARD_MATRIX, dt_colorspaces_cicp_to_type(), dt_colorspaces_create_xyzimatrix_profile(), dt_colorspaces_get_profile(), dt_colorspaces_get_rgb_profile_from_mem(), DT_DEBUG_COLORPROFILE, dt_free, DT_IMAGE_4BAYER, dt_image_cache_get(), DT_IMAGE_CACHE_RELAXED, dt_image_cache_write_release(), DT_IMAGE_COLORSPACE_ADOBE_RGB, DT_IMAGE_COLORSPACE_SRGB, dt_image_full_path(), dt_image_is_matrix_correction_supported(), dt_image_is_monochrome(), dt_imageio_avif_read_profile(), dt_imageio_heif_read_profile(), dt_imageio_j2k_read_profile(), dt_imageio_jpeg_read_header(), dt_imageio_jpeg_read_profile(), dt_imageio_png_read_profile(), dt_imageio_tiff_read_profile(), dt_print(), DT_PROFILE_DIRECTION_IN, FALSE, dt_image_t::flags, darktable_t::image_cache, IS_NULL_PTR, PATH_MAX, dt_colorspaces_color_profile_t::profile, dt_image_t::profile, dt_image_t::profile_size, and TRUE.

Referenced by dt_colorspaces_get_embedded_profile(), dt_colorspaces_get_input_profile_from_image(), and reload_defaults().

hsl2rgb()

void hsl2rgb	(	dt_aligned_pixel_t	rgb,
		float	h,
		float	s,
		float	l
	)

Definition at line 1455 of file colorspaces.c.

References rgb.

Referenced by commit_params(), hue_conversion(), process(), process_hsl_v1(), process_hsl_v2(), set_RGB_sliders(), update_balance_slider_colors(), update_colorpicker_color(), update_saturation_slider_color(), update_saturation_slider_end_color(), update_saturation_slider_end_color(), and update_saturation_slider_end_color().

load_profile_from_dir()

static GList * load_profile_from_dir ( const char *  subdir )

static

Todo:

: add support for grayscale profiles, then remove _ensure_rgb_profile() from here

Definition at line 1655 of file colorspaces.c.

References _ensure_rgb_profile(), _sort_profiles(), dt_colorspaces_color_profile_t::category_pos, dt_colorspaces_color_profile_t::display_pos, DT_COLORSPACE_FILE, dt_colorspaces_get_profile_name(), dt_free, dt_loc_get_datadir(), dt_loc_get_user_config_dir(), dt_read_file(), dt_colorspaces_color_profile_t::filename, dt_colorspaces_color_profile_t::in_pos, IS_NULL_PTR, dt_colorspaces_color_profile_t::name, dt_colorspaces_color_profile_t::out_pos, PATH_MAX, dt_colorspaces_color_profile_t::profile, dt_colorspaces_color_profile_t::type, and dt_colorspaces_color_profile_t::work_pos.

Referenced by dt_colorspaces_init().

mat3inv()

int mat3inv	(	float *const	dst,
		const float *const	src
	)

Definition at line 191 of file colorspaces.c.

References mat3inv_float().

Referenced by dt_colorspaces_create_xyzimatrix_profile(), dt_imageio_open_rgbe(), and homography().

mat3inv_double()

int mat3inv_double	(	double *const	dst,
		const double *const	src
	)

Definition at line 196 of file colorspaces.c.

mat3inv_float()

int mat3inv_float	(	float *const	dst,
		const float *const	src
	)

inverts the given 3x3 matrix

Definition at line 189 of file colorspaces.c.

Referenced by mat3inv().

rgb2hsl()

void rgb2hsl	(	const dt_aligned_pixel_t	rgb,
		float *	h,
		float *	s,
		float *	l
	)

common functions to change between colorspaces, used in iop modules

Definition at line 1411 of file colorspaces.c.

References delta, g, r, and rgb.

Referenced by color_picker_apply(), colorpick_callback(), process(), process_hsl_v1(), process_hsl_v2(), and set_HSL_sliders().

Variable Documentation

Adobe_Primaries

const cmsCIExyYTRIPLE Adobe_Primaries

static

Initial value:

= {
  {0.6400, 0.3300, 1.0}, 
  {0.2100, 0.7100, 1.0}, 
  {0.1500, 0.0600, 1.0}  
}

Definition at line 135 of file colorspaces.c.

Referenced by dt_colorspaces_create_adobergb_profile().

D50xyY

const cmsCIExyY D50xyY = {0.3457, 0.3585, 1.0}

static

Definition at line 111 of file colorspaces.c.

Referenced by dt_colorspaces_create_linear_prophoto_rgb_profile().

d65

const cmsCIEXYZ d65 = {0.95045471, 1.00000000, 1.08905029}

static

Definition at line 102 of file colorspaces.c.

Referenced by dt_colorspaces_create_xyzmatrix_profile(), and dt_imageio_open_exr().

D65xyY

const cmsCIExyY D65xyY = {0.312700492, 0.329000939, 1.0}

static

Definition at line 105 of file colorspaces.c.

Referenced by _colorspaces_create_srgb_profile(), dt_colorspaces_create_adobergb_profile(), dt_colorspaces_create_brg_profile(), dt_colorspaces_create_display_p3_rgb_profile(), dt_colorspaces_create_gamma_rec709_rgb_profile(), dt_colorspaces_create_hlg_p3_rgb_profile(), dt_colorspaces_create_hlg_rec2020_rgb_profile(), dt_colorspaces_create_itur_bt1886_rgb_profile(), dt_colorspaces_create_linear_infrared_profile(), dt_colorspaces_create_linear_rec2020_rgb_profile(), dt_colorspaces_create_linear_rec709_rgb_profile(), dt_colorspaces_create_pq_p3_rgb_profile(), dt_colorspaces_create_pq_rec2020_rgb_profile(), and dt_colorspaces_init().

P3_Primaries

const cmsCIExyYTRIPLE P3_Primaries

static

Initial value:

= {
  {0.680, 0.320, 1.0}, 
  {0.265, 0.690, 1.0}, 
  {0.150, 0.060, 1.0}  
}

Definition at line 142 of file colorspaces.c.

Referenced by dt_colorspaces_create_display_p3_rgb_profile(), dt_colorspaces_create_hlg_p3_rgb_profile(), and dt_colorspaces_create_pq_p3_rgb_profile().

ProPhoto_Primaries

const cmsCIExyYTRIPLE ProPhoto_Primaries

static

Initial value:

= {
  
  { 0.734699, 0.265301, 1.0000 }, 
  { 0.159597, 0.840403, 1.0000 }, 
  { 0.036598, 0.000105, 1.0000 }, 
}

Definition at line 150 of file colorspaces.c.

Referenced by dt_colorspaces_create_linear_prophoto_rgb_profile().

Rec2020_Primaries

const cmsCIExyYTRIPLE Rec2020_Primaries

static

Initial value:

= {
  {0.7080, 0.2920, 1.0}, 
  {0.1700, 0.7970, 1.0}, 
  {0.1310, 0.0460, 1.0}  
}

Definition at line 121 of file colorspaces.c.

Referenced by dt_colorspaces_create_hlg_rec2020_rgb_profile(), dt_colorspaces_create_linear_rec2020_rgb_profile(), and dt_colorspaces_create_pq_rec2020_rgb_profile().

Rec709_Primaries

const cmsCIExyYTRIPLE Rec709_Primaries

static

Initial value:

= {
  {0.6400, 0.3300, 1.0}, 
  {0.3000, 0.6000, 1.0}, 
  {0.1500, 0.0600, 1.0}  
}

Definition at line 128 of file colorspaces.c.

Referenced by dt_colorspaces_create_gamma_rec709_rgb_profile(), dt_colorspaces_create_itur_bt1886_rgb_profile(), dt_colorspaces_create_linear_rec709_rgb_profile(), and dt_colorspaces_init().

Rec709_Primaries_Prequantized

cmsCIEXYZTRIPLE Rec709_Primaries_Prequantized

Definition at line 157 of file colorspaces.c.

Referenced by _ensure_rgb_profile(), and dt_colorspaces_init().

sRGB_Primaries

const cmsCIExyYTRIPLE sRGB_Primaries

static

Initial value:

= {
  {0.6400, 0.3300, 1.0}, 
  {0.3000, 0.6000, 1.0}, 
  {0.1500, 0.0600, 1.0}  
}

Definition at line 114 of file colorspaces.c.

Referenced by _colorspaces_create_srgb_profile(), dt_colorspaces_create_brg_profile(), and dt_colorspaces_create_linear_infrared_profile().