colorprimaries.c File Reference

#include <math.h>
#include <stdlib.h>
#include <string.h>
#include "bauhaus/bauhaus.h"
#include "common/colorequal_shared.h"
#include "common/darktable.h"
#include "common/imagebuf.h"
#include "common/lut_viewer.h"
#include "control/control.h"
#include "develop/develop.h"
#include "develop/imageop.h"
#include "develop/imageop_gui.h"
#include "gui/color_picker_proxy.h"
#include "gui/gtk.h"
#include "iop/iop_api.h"

Include dependency graph for colorprimaries.c:

Data Structures
struct	dt_iop_colorprimaries_edge_t
struct	dt_iop_colorprimaries_params_t
struct	dt_iop_colorprimaries_data_t
struct	dt_iop_colorprimaries_global_data_t
struct	dt_iop_colorprimaries_gui_data_t

Macros
#define	DT_IOP_COLORPRIMARIES_NODE_COUNT   6
#define	DT_IOP_COLORPRIMARIES_EDGE_COUNT   6
#define	DT_IOP_COLORPRIMARIES_RADIAL_COUNT   (DT_IOP_COLORPRIMARIES_NODE_COUNT + DT_IOP_COLORPRIMARIES_EDGE_COUNT)
#define	DT_IOP_COLORPRIMARIES_BLACK_WHITE_COUNT   (2 * DT_IOP_COLORPRIMARIES_NODE_COUNT)
#define	DT_IOP_COLORPRIMARIES_AXIS_ANCHORS   64
#define	DT_IOP_COLORPRIMARIES_MAX_ANCHORS
#define	DT_IOP_COLORPRIMARIES_VIEWER_CONTROL_NODES
#define	DT_IOP_COLORPRIMARIES_SQRT3   1.7320508075688772f
#define	DT_IOP_COLORPRIMARIES_INV_SQRT2   0.7071067811865475f

Typedefs
typedef enum dt_iop_colorprimaries_interpolation_t	dt_iop_colorprimaries_interpolation_t
typedef enum dt_iop_colorprimaries_node_t	dt_iop_colorprimaries_node_t
typedef struct dt_iop_colorprimaries_edge_t	dt_iop_colorprimaries_edge_t
typedef struct dt_iop_colorprimaries_params_t	dt_iop_colorprimaries_params_t
typedef struct dt_iop_colorprimaries_data_t	dt_iop_colorprimaries_data_t
typedef struct dt_iop_colorprimaries_global_data_t	dt_iop_colorprimaries_global_data_t
typedef struct dt_iop_colorprimaries_gui_data_t	dt_iop_colorprimaries_gui_data_t

Enumerations
enum	dt_iop_colorprimaries_interpolation_t {   DT_IOP_COLORPRIMARIES_TETRAHEDRAL = 0 ,   DT_IOP_COLORPRIMARIES_TRILINEAR = 1 ,   DT_IOP_COLORPRIMARIES_PYRAMID = 2 }
enum	dt_iop_colorprimaries_node_t {   DT_IOP_COLORPRIMARIES_RED = 0 ,   DT_IOP_COLORPRIMARIES_YELLOW = 1 ,   DT_IOP_COLORPRIMARIES_GREEN = 2 ,   DT_IOP_COLORPRIMARIES_CYAN = 3 ,   DT_IOP_COLORPRIMARIES_BLUE = 4 ,   DT_IOP_COLORPRIMARIES_MAGENTA = 5 }

Functions
const char *	name ()
const char *	aliases ()
const char **	description (struct dt_iop_module_t *self)
int	default_group ()
int	flags ()
int	default_colorspace (dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, const dt_dev_pixelpipe_iop_t *piece)
static void	_update_gui_lut_cache (dt_iop_module_t *self)
static const char *	_node_name (const dt_iop_colorprimaries_node_t node)
static void	_init_default_params (dt_iop_colorprimaries_params_t *p)
static gboolean	_lut_fields_equal (const dt_iop_colorprimaries_params_t *const a, const dt_iop_colorprimaries_params_t *const b)
static void	_node_corner_rgb (const dt_iop_colorprimaries_node_t node, dt_aligned_pixel_t RGB)
static void	_node_base_rgb (const dt_iop_colorprimaries_node_t node, const float gamut_coverage, dt_aligned_pixel_t RGB)
static float	_mix_hue_delta_weighted (const float hue_a, const float hue_b, const float weight_a, const float weight_b)
static float	_hsb_distance (const dt_aligned_pixel_t a, const dt_aligned_pixel_t b)
static void	_black_white_rgb (const gboolean white, dt_aligned_pixel_t RGB)
static void	_halfway_to_axis_rgb (const dt_aligned_pixel_t source_rgb, dt_aligned_pixel_t halfway_rgb)
static gboolean	_build_anchor_from_source_rgb (const dt_aligned_pixel_t source_rgb, const float hue_delta, const float saturation_delta, const float brightness_delta, const dt_iop_order_iccprofile_info_t *const lut_profile, dt_colorrings_sparse_anchor_t *const anchor)
static gboolean	_build_halfway_radial_anchor_from_source_rgb (const dt_aligned_pixel_t source_rgb, const float hue_delta, const float saturation_delta, const float brightness_delta, const dt_iop_order_iccprofile_info_t *const lut_profile, dt_colorrings_sparse_anchor_t *const anchor, dt_aligned_pixel_t halfway_rgb)
static gboolean	_build_halfway_extreme_anchor_from_source_rgb (const dt_aligned_pixel_t source_rgb, const dt_aligned_pixel_t extreme_rgb, const float hue_delta, const float saturation_delta, const float brightness_delta, const dt_iop_order_iccprofile_info_t *const lut_profile, dt_colorrings_sparse_anchor_t *const anchor, dt_aligned_pixel_t halfway_rgb)
static void	_apply_anchor_to_rgb (const dt_aligned_pixel_t source_rgb, const dt_colorrings_sparse_anchor_t *const anchor, dt_aligned_pixel_t target_rgb)
static gboolean	_build_node_anchor (const dt_iop_colorprimaries_params_t *const p, const dt_iop_colorprimaries_node_t node, const dt_iop_order_iccprofile_info_t *const lut_profile, dt_colorrings_sparse_anchor_t *const anchor)
static gboolean	_build_edge_edit (const dt_iop_colorprimaries_params_t *const p, const dt_iop_colorprimaries_edge_t edge, const dt_iop_order_iccprofile_info_t *const lut_profile, dt_aligned_pixel_t source_rgb, float *const hue_delta, float *const saturation_delta, float *const brightness_delta)
static void	_store_viewer_control_node (dt_lut_viewer_control_node_t *const control_nodes, int *const count, const dt_aligned_pixel_t input_rgb, const dt_aligned_pixel_t output_rgb)
static void	_append_anchor (dt_colorrings_sparse_anchor_t *const anchors, int *const anchor_count, const dt_colorrings_sparse_anchor_t *const anchor)
static gboolean	_build_edge_anchor (const dt_iop_colorprimaries_params_t *const p, const dt_iop_colorprimaries_edge_t edge, const dt_iop_order_iccprofile_info_t *const lut_profile, dt_colorrings_sparse_anchor_t *const anchor)
static gboolean	_build_node_radial_midpoint_anchor (const dt_iop_colorprimaries_params_t *const p, const dt_iop_colorprimaries_node_t node, const dt_iop_order_iccprofile_info_t *const lut_profile, dt_colorrings_sparse_anchor_t *const anchor, dt_aligned_pixel_t midpoint_rgb)
static gboolean	_build_node_black_white_midpoint_anchor (const dt_iop_colorprimaries_params_t *const p, const dt_iop_colorprimaries_node_t node, const gboolean toward_white, const dt_iop_order_iccprofile_info_t *const lut_profile, dt_colorrings_sparse_anchor_t *const anchor, dt_aligned_pixel_t midpoint_rgb)
static gboolean	_build_edge_radial_midpoint_anchor (const dt_iop_colorprimaries_params_t *const p, const dt_iop_colorprimaries_edge_t edge, const dt_iop_order_iccprofile_info_t *const lut_profile, dt_colorrings_sparse_anchor_t *const anchor, dt_aligned_pixel_t midpoint_rgb)
static int	_build_viewer_control_nodes (const dt_iop_colorprimaries_params_t *const p, const dt_iop_order_iccprofile_info_t *const lut_profile, dt_lut_viewer_control_node_t *const control_nodes)
static void	_node_source_hsb (const dt_iop_colorprimaries_params_t *const p, const dt_iop_colorprimaries_node_t node, const dt_iop_order_iccprofile_info_t *const lut_profile, dt_aligned_pixel_t HSB)
static void	_node_target_hsb (const dt_iop_colorprimaries_params_t *const p, const dt_iop_colorprimaries_node_t node, const dt_iop_order_iccprofile_info_t *const lut_profile, dt_aligned_pixel_t HSB)
static void	_build_clut (dt_iop_colorprimaries_data_t *d, const dt_iop_colorprimaries_params_t *p, const dt_iop_order_iccprofile_info_t *lut_profile)
void	commit_params (struct dt_iop_module_t *self, dt_iop_params_t *p1, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
void	init_pipe (struct dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
void	cleanup_pipe (struct dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
__DT_CLONE_TARGETS__ int	process (struct dt_iop_module_t *self, const dt_dev_pixelpipe_t *pipe, const dt_dev_pixelpipe_iop_t *piece, const void *const ibuf, void *const obuf)
static void	_pipe_rgb_to_Ych (dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, const dt_aligned_pixel_t RGB, dt_aligned_pixel_t Ych)
static void	_set_slider_stop_from_hsb (GtkWidget *slider, const float stop, const dt_aligned_pixel_t HSB, const dt_iop_order_iccprofile_info_t *display_profile)
static void	_set_slider_stop_from_profile_rgb (GtkWidget *slider, const float stop, const dt_aligned_pixel_t RGB, const dt_iop_order_iccprofile_info_t *lut_profile, const dt_iop_order_iccprofile_info_t *display_profile)
static void	_refresh_slider_gradients (dt_iop_module_t *self)
void	gui_changed (dt_iop_module_t *self, GtkWidget *w, void *previous)
void	gui_update (dt_iop_module_t *self)
void	gui_cleanup (dt_iop_module_t *self)
static GtkWidget *	_new_section_label (GtkWidget *box, const char *label)
void	color_picker_apply (dt_iop_module_t *self, GtkWidget *picker, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
void	autoset (struct dt_iop_module_t *self, const struct dt_dev_pixelpipe_t *pipe, const struct dt_dev_pixelpipe_iop_t *piece, const void *i)
void	gui_init (dt_iop_module_t *self)
void	init_global (dt_iop_module_so_t *module)
void	cleanup_global (dt_iop_module_so_t *module)
void	init (dt_iop_module_t *module)

Variables
static const dt_iop_colorprimaries_edge_t	_chroma_edges [6]

Macro Definition Documentation

DT_IOP_COLORPRIMARIES_AXIS_ANCHORS

#define DT_IOP_COLORPRIMARIES_AXIS_ANCHORS   64

DT_IOP_COLORPRIMARIES_BLACK_WHITE_COUNT

#define DT_IOP_COLORPRIMARIES_BLACK_WHITE_COUNT   (2 * DT_IOP_COLORPRIMARIES_NODE_COUNT)

DT_IOP_COLORPRIMARIES_EDGE_COUNT

#define DT_IOP_COLORPRIMARIES_EDGE_COUNT   6

DT_IOP_COLORPRIMARIES_INV_SQRT2

#define DT_IOP_COLORPRIMARIES_INV_SQRT2   0.7071067811865475f

DT_IOP_COLORPRIMARIES_MAX_ANCHORS

#define DT_IOP_COLORPRIMARIES_MAX_ANCHORS

Value:

  (DT_IOP_COLORPRIMARIES_NODE_COUNT + DT_IOP_COLORPRIMARIES_EDGE_COUNT + DT_IOP_COLORPRIMARIES_RADIAL_COUNT \
   + DT_IOP_COLORPRIMARIES_BLACK_WHITE_COUNT + DT_IOP_COLORPRIMARIES_AXIS_ANCHORS)

DT_IOP_COLORPRIMARIES_NODE_COUNT

#define DT_IOP_COLORPRIMARIES_NODE_COUNT   6

DT_IOP_COLORPRIMARIES_RADIAL_COUNT

#define DT_IOP_COLORPRIMARIES_RADIAL_COUNT   (DT_IOP_COLORPRIMARIES_NODE_COUNT + DT_IOP_COLORPRIMARIES_EDGE_COUNT)

DT_IOP_COLORPRIMARIES_SQRT3

#define DT_IOP_COLORPRIMARIES_SQRT3   1.7320508075688772f

DT_IOP_COLORPRIMARIES_VIEWER_CONTROL_NODES

#define DT_IOP_COLORPRIMARIES_VIEWER_CONTROL_NODES

Value:

  (DT_IOP_COLORPRIMARIES_NODE_COUNT + DT_IOP_COLORPRIMARIES_EDGE_COUNT + DT_IOP_COLORPRIMARIES_RADIAL_COUNT \
   + DT_IOP_COLORPRIMARIES_BLACK_WHITE_COUNT)

Typedef Documentation

dt_iop_colorprimaries_data_t

typedef struct dt_iop_colorprimaries_data_t dt_iop_colorprimaries_data_t

dt_iop_colorprimaries_edge_t

typedef struct dt_iop_colorprimaries_edge_t dt_iop_colorprimaries_edge_t

dt_iop_colorprimaries_global_data_t

typedef struct dt_iop_colorprimaries_global_data_t dt_iop_colorprimaries_global_data_t

dt_iop_colorprimaries_gui_data_t

typedef struct dt_iop_colorprimaries_gui_data_t dt_iop_colorprimaries_gui_data_t

dt_iop_colorprimaries_interpolation_t

typedef enum dt_iop_colorprimaries_interpolation_t dt_iop_colorprimaries_interpolation_t

dt_iop_colorprimaries_node_t

typedef enum dt_iop_colorprimaries_node_t dt_iop_colorprimaries_node_t

dt_iop_colorprimaries_params_t

typedef struct dt_iop_colorprimaries_params_t dt_iop_colorprimaries_params_t

Enumeration Type Documentation

dt_iop_colorprimaries_interpolation_t

enum dt_iop_colorprimaries_interpolation_t

Enumerator
DT_IOP_COLORPRIMARIES_TETRAHEDRAL
DT_IOP_COLORPRIMARIES_TRILINEAR
DT_IOP_COLORPRIMARIES_PYRAMID

dt_iop_colorprimaries_node_t

enum dt_iop_colorprimaries_node_t

Enumerator
DT_IOP_COLORPRIMARIES_RED
DT_IOP_COLORPRIMARIES_YELLOW
DT_IOP_COLORPRIMARIES_GREEN
DT_IOP_COLORPRIMARIES_CYAN
DT_IOP_COLORPRIMARIES_BLUE
DT_IOP_COLORPRIMARIES_MAGENTA

Function Documentation

_append_anchor()

static void _append_anchor ( dt_colorrings_sparse_anchor_t *const  anchors, int *const  anchor_count, const dt_colorrings_sparse_anchor_t *const  anchor  )

inlinestatic

Referenced by _build_clut().

_apply_anchor_to_rgb()

static void _apply_anchor_to_rgb ( const dt_aligned_pixel_t  source_rgb, const dt_colorrings_sparse_anchor_t *const  anchor, dt_aligned_pixel_t  target_rgb  )

static

References dt_colorrings_sparse_anchor_t::chroma_scale, dt_colorrings_sparse_anchor_t::delta_L, dt_colorrings_sparse_anchor_t::delta_theta, dt_colorrings_gray_axis_rgb_from_L(), dt_colorrings_gray_basis_to_rgb(), dt_colorrings_project_to_cube_shell(), and dt_colorrings_rgb_to_gray_cyl().

Referenced by _build_viewer_control_nodes().

_black_white_rgb()

static void _black_white_rgb ( const gboolean  white, dt_aligned_pixel_t  RGB  )

inlinestatic

References RGB.

Referenced by _build_node_black_white_midpoint_anchor().

_build_anchor_from_source_rgb()

static gboolean _build_anchor_from_source_rgb ( const dt_aligned_pixel_t  source_rgb, const float  hue_delta, const float  saturation_delta, const float  brightness_delta, const dt_iop_order_iccprofile_info_t *const  lut_profile, dt_colorrings_sparse_anchor_t *const  anchor  )

static

Express the user edits directly as a cylindrical RGB transform instead of reconstructing a temporary target RGB anchor first.

The important subtlety is that dt UCS HSB source saturations can exceed the normalized [0, 1] GUI interval for some recessed nodes, especially near blue. Clamping that source state before applying a zero user delta silently turns a neutral setting into a non-neutral desaturation. Build the sparse transform from the slider deltas themselves so the identity transform stays exact regardless of where the source node lands in dt UCS.

References dt_colorrings_sparse_anchor_t::chroma_scale, dt_colorrings_sparse_anchor_t::delta_L, dt_colorrings_sparse_anchor_t::delta_theta, dt_colorrings_brightness_to_axis_rgb(), dt_colorrings_graph_white(), dt_colorrings_profile_rgb_to_dt_ucs_hsb(), dt_colorrings_rgb_to_gray_cyl(), dt_colorrings_wrap_pi(), FALSE, dt_colorrings_sparse_anchor_t::L, dt_colorrings_sparse_anchor_t::rho, dt_colorrings_sparse_anchor_t::theta, TRUE, and dt_colorrings_sparse_anchor_t::weight.

Referenced by _build_edge_anchor(), _build_halfway_extreme_anchor_from_source_rgb(), _build_halfway_radial_anchor_from_source_rgb(), _build_node_anchor(), and _build_viewer_control_nodes().

_build_clut()

static void _build_clut ( dt_iop_colorprimaries_data_t *  d, const dt_iop_colorprimaries_params_t *  p, const dt_iop_order_iccprofile_info_t *  lut_profile  )

static

The user edits six recessed RGB/CYM vertices of the Rec2020/HLG gamut. Each edited HSB node is converted back to RGB, then the same RGB cylindrical local field as color equalizer spreads those sparse displacements over the whole LUT volume. A dense ladder of no-op axis anchors keeps the black-white diagonal fixed and stabilizes near-neutral interpolation.

References _append_anchor(), _build_edge_anchor(), _build_edge_radial_midpoint_anchor(), _build_node_anchor(), _build_node_black_white_midpoint_anchor(), _build_node_radial_midpoint_anchor(), _chroma_edges, dt_colorrings_sparse_anchor_t::chroma_scale, d, darktable, dt_colorrings_sparse_anchor_t::delta_L, dt_colorrings_sparse_anchor_t::delta_theta, dt_alloc_align_float(), DT_COLORRINGS_CLUT_LEVEL, dt_colorrings_fill_lut_sparse_local_field(), DT_DEBUG_PERF, dt_get_wtime(), DT_IOP_COLORPRIMARIES_AXIS_ANCHORS, DT_IOP_COLORPRIMARIES_EDGE_COUNT, DT_IOP_COLORPRIMARIES_MAX_ANCHORS, DT_IOP_COLORPRIMARIES_NODE_COUNT, DT_IOP_COLORPRIMARIES_SQRT3, dt_print(), IS_NULL_PTR, dt_colorrings_sparse_anchor_t::L, p, dt_colorrings_sparse_anchor_t::rho, dt_colorrings_sparse_anchor_t::theta, darktable_t::unmuted, value, and dt_colorrings_sparse_anchor_t::weight.

Referenced by _update_gui_lut_cache(), and commit_params().

_build_edge_anchor()

static gboolean _build_edge_anchor ( const dt_iop_colorprimaries_params_t *const  p, const dt_iop_colorprimaries_edge_t  edge, const dt_iop_order_iccprofile_info_t *const  lut_profile, dt_colorrings_sparse_anchor_t *const  anchor  )

static

References _build_anchor_from_source_rgb(), _build_edge_edit(), FALSE, and p.

Referenced by _build_clut().

_build_edge_edit()

static gboolean _build_edge_edit ( const dt_iop_colorprimaries_params_t *const  p, const dt_iop_colorprimaries_edge_t  edge, const dt_iop_order_iccprofile_info_t *const  lut_profile, dt_aligned_pixel_t  source_rgb, float *const  hue_delta, float *const  saturation_delta, float *const  brightness_delta  )

static

The user only edits the six chromatic vertices, but the local field gets unstable when those anchors are too far apart on the hue circle. Insert a midpoint anchor on every chromatic edge and inherit its HSB transform from the two neighbouring vertex edits.

The midpoint of an RGB edge is not generally halfway between its endpoints once mapped to dt UCS HSB. Weight the synthetic control in that same HSB geometry so the extra anchor follows the perceptual spacing of the source nodes instead of assuming a fixed 50/50 split.

References _hsb_distance(), _mix_hue_delta_weighted(), _node_base_rgb(), dt_iop_colorprimaries_edge_t::a, dt_iop_colorprimaries_edge_t::b, dt_colorrings_graph_white(), dt_colorrings_profile_rgb_to_dt_ucs_hsb(), for_each_channel, p, and TRUE.

Referenced by _build_edge_anchor(), _build_edge_radial_midpoint_anchor(), and _build_viewer_control_nodes().

_build_edge_radial_midpoint_anchor()

static gboolean _build_edge_radial_midpoint_anchor ( const dt_iop_colorprimaries_params_t *const  p, const dt_iop_colorprimaries_edge_t  edge, const dt_iop_order_iccprofile_info_t *const  lut_profile, dt_colorrings_sparse_anchor_t *const  anchor, dt_aligned_pixel_t  midpoint_rgb  )

static

References _build_edge_edit(), _build_halfway_radial_anchor_from_source_rgb(), FALSE, and p.

Referenced by _build_clut(), and _build_viewer_control_nodes().

_build_halfway_extreme_anchor_from_source_rgb()

static gboolean _build_halfway_extreme_anchor_from_source_rgb ( const dt_aligned_pixel_t  source_rgb, const dt_aligned_pixel_t  extreme_rgb, const float  hue_delta, const float  saturation_delta, const float  brightness_delta, const dt_iop_order_iccprofile_info_t *const  lut_profile, dt_colorrings_sparse_anchor_t *const  anchor, dt_aligned_pixel_t  halfway_rgb  )

static

References _build_anchor_from_source_rgb(), _hsb_distance(), dt_colorrings_graph_white(), and dt_colorrings_profile_rgb_to_dt_ucs_hsb().

Referenced by _build_node_black_white_midpoint_anchor().

_build_halfway_radial_anchor_from_source_rgb()

static gboolean _build_halfway_radial_anchor_from_source_rgb ( const dt_aligned_pixel_t  source_rgb, const float  hue_delta, const float  saturation_delta, const float  brightness_delta, const dt_iop_order_iccprofile_info_t *const  lut_profile, dt_colorrings_sparse_anchor_t *const  anchor, dt_aligned_pixel_t  halfway_rgb  )

static

The achromatic endpoint has no meaningful hue of its own. Reuse the outer control-node hue there so the HSB distance only measures how far the halfway point sits from the colored control versus the neutral axis, instead of introducing a branch-cut-dependent hue error from a grey value.

References _build_anchor_from_source_rgb(), _halfway_to_axis_rgb(), _hsb_distance(), dt_colorrings_graph_white(), dt_colorrings_gray_axis_rgb_from_L(), dt_colorrings_profile_rgb_to_dt_ucs_hsb(), dt_colorrings_rgb_to_gray_cyl(), and FALSE.

Referenced by _build_edge_radial_midpoint_anchor(), and _build_node_radial_midpoint_anchor().

_build_node_anchor()

static gboolean _build_node_anchor ( const dt_iop_colorprimaries_params_t *const  p, const dt_iop_colorprimaries_node_t  node, const dt_iop_order_iccprofile_info_t *const  lut_profile, dt_colorrings_sparse_anchor_t *const  anchor  )

static

References _build_anchor_from_source_rgb(), _node_base_rgb(), M_PI_F, and p.

Referenced by _build_clut(), and _build_viewer_control_nodes().

_build_node_black_white_midpoint_anchor()

static gboolean _build_node_black_white_midpoint_anchor ( const dt_iop_colorprimaries_params_t *const  p, const dt_iop_colorprimaries_node_t  node, const gboolean  toward_white, const dt_iop_order_iccprofile_info_t *const  lut_profile, dt_colorrings_sparse_anchor_t *const  anchor, dt_aligned_pixel_t  midpoint_rgb  )

static

References _black_white_rgb(), _build_halfway_extreme_anchor_from_source_rgb(), _node_base_rgb(), M_PI_F, and p.

Referenced by _build_clut(), and _build_viewer_control_nodes().

_build_node_radial_midpoint_anchor()

static gboolean _build_node_radial_midpoint_anchor ( const dt_iop_colorprimaries_params_t *const  p, const dt_iop_colorprimaries_node_t  node, const dt_iop_order_iccprofile_info_t *const  lut_profile, dt_colorrings_sparse_anchor_t *const  anchor, dt_aligned_pixel_t  midpoint_rgb  )

static

References _build_halfway_radial_anchor_from_source_rgb(), _node_base_rgb(), M_PI_F, and p.

Referenced by _build_clut(), and _build_viewer_control_nodes().

_build_viewer_control_nodes()

static int _build_viewer_control_nodes ( const dt_iop_colorprimaries_params_t *const  p, const dt_iop_order_iccprofile_info_t *const  lut_profile, dt_lut_viewer_control_node_t *const  control_nodes  )

static

References _apply_anchor_to_rgb(), _build_anchor_from_source_rgb(), _build_edge_edit(), _build_edge_radial_midpoint_anchor(), _build_node_anchor(), _build_node_black_white_midpoint_anchor(), _build_node_radial_midpoint_anchor(), _chroma_edges, _node_base_rgb(), _store_viewer_control_node(), DT_IOP_COLORPRIMARIES_EDGE_COUNT, DT_IOP_COLORPRIMARIES_NODE_COUNT, IS_NULL_PTR, and p.

Referenced by _update_gui_lut_cache().

_halfway_to_axis_rgb()

static void _halfway_to_axis_rgb ( const dt_aligned_pixel_t  source_rgb, dt_aligned_pixel_t  halfway_rgb  )

static

References dt_colorrings_gray_basis_to_rgb(), dt_colorrings_rgb_to_gray_cyl(), and L.

Referenced by _build_halfway_radial_anchor_from_source_rgb().

_hsb_distance()

static float _hsb_distance ( const dt_aligned_pixel_t  a, const dt_aligned_pixel_t  b  )

inlinestatic

References dt_colorrings_wrap_pi().

Referenced by _build_edge_edit(), _build_halfway_extreme_anchor_from_source_rgb(), and _build_halfway_radial_anchor_from_source_rgb().

_init_default_params()

static void _init_default_params ( dt_iop_colorprimaries_params_t *  p )

static

References DT_IOP_COLORPRIMARIES_INV_SQRT2, DT_IOP_COLORPRIMARIES_TETRAHEDRAL, and p.

Referenced by init().

_lut_fields_equal()

static gboolean _lut_fields_equal ( const dt_iop_colorprimaries_params_t *const  a, const dt_iop_colorprimaries_params_t *const  b  )

inlinestatic

Referenced by _update_gui_lut_cache(), and commit_params().

_mix_hue_delta_weighted()

static float _mix_hue_delta_weighted ( const float  hue_a, const float  hue_b, const float  weight_a, const float  weight_b  )

inlinestatic

References M_PI_F.

Referenced by _build_edge_edit().

_new_section_label()

static GtkWidget * _new_section_label ( GtkWidget *  box, const char *  label  )

static

References dt_ui_section_label_new(), FALSE, and TRUE.

Referenced by gui_init().

_node_base_rgb()

static void _node_base_rgb ( const dt_iop_colorprimaries_node_t  node, const float  gamut_coverage, dt_aligned_pixel_t  RGB  )

inlinestatic

References _node_corner_rgb(), for_each_channel, mu, and RGB.

Referenced by _build_edge_edit(), _build_node_anchor(), _build_node_black_white_midpoint_anchor(), _build_node_radial_midpoint_anchor(), _build_viewer_control_nodes(), and _node_source_hsb().

_node_corner_rgb()

static void _node_corner_rgb ( const dt_iop_colorprimaries_node_t  node, dt_aligned_pixel_t  RGB  )

inlinestatic

References DT_IOP_COLORPRIMARIES_BLUE, DT_IOP_COLORPRIMARIES_CYAN, DT_IOP_COLORPRIMARIES_GREEN, DT_IOP_COLORPRIMARIES_MAGENTA, DT_IOP_COLORPRIMARIES_RED, DT_IOP_COLORPRIMARIES_YELLOW, and RGB.

Referenced by _node_base_rgb().

_node_name()

static const char * _node_name ( const dt_iop_colorprimaries_node_t  node )

inlinestatic

References DT_IOP_COLORPRIMARIES_BLUE, DT_IOP_COLORPRIMARIES_CYAN, DT_IOP_COLORPRIMARIES_GREEN, DT_IOP_COLORPRIMARIES_MAGENTA, DT_IOP_COLORPRIMARIES_RED, and DT_IOP_COLORPRIMARIES_YELLOW.

Referenced by gui_init().

_node_source_hsb()

static void _node_source_hsb ( const dt_iop_colorprimaries_params_t *const  p, const dt_iop_colorprimaries_node_t  node, const dt_iop_order_iccprofile_info_t *const  lut_profile, dt_aligned_pixel_t  HSB  )

static

References _node_base_rgb(), dt_colorrings_graph_white(), dt_colorrings_profile_rgb_to_dt_ucs_hsb(), p, and RGB.

Referenced by _node_target_hsb(), and _refresh_slider_gradients().

_node_target_hsb()

static void _node_target_hsb ( const dt_iop_colorprimaries_params_t *const  p, const dt_iop_colorprimaries_node_t  node, const dt_iop_order_iccprofile_info_t *const  lut_profile, dt_aligned_pixel_t  HSB  )

static

References _node_source_hsb(), dt_colorrings_wrap_hue_pi(), M_PI_F, and p.

Referenced by _refresh_slider_gradients().

_pipe_rgb_to_Ych()

static void _pipe_rgb_to_Ych ( dt_iop_module_t *  self, dt_dev_pixelpipe_t *  pipe, const dt_aligned_pixel_t  RGB, dt_aligned_pixel_t  Ych  )

static

References dt_colorrings_profile_rgb_to_Ych(), dt_ioppr_get_pipe_current_profile_info(), IS_NULL_PTR, and RGB.

Referenced by color_picker_apply().

_refresh_slider_gradients()

static void _refresh_slider_gradients ( dt_iop_module_t *  self )

static

The slider stops are purely visual guides. Convert every dt UCS HSB stop through the current display profile so the gradients match the monitor gamut and tone response used by the graph backgrounds elsewhere.

The saturation slider is meant to show the actual chroma axis of the edited node, not arbitrary dt UCS saturation extrema. Build its color ramp from the edited node RGB itself: grey at the same brightness, current node color in the middle, and the same RGB direction extended to the LUT cube shell at the top end.

References _node_source_hsb(), _node_target_hsb(), _set_slider_stop_from_hsb(), _set_slider_stop_from_profile_rgb(), dt_iop_module_t::dev, dt_bauhaus_slider_clear_stops(), dt_colorrings_brightness_to_axis_rgb(), dt_colorrings_graph_white(), dt_colorrings_hsb_to_profile_rgb(), dt_colorrings_project_to_cube_shell(), dt_colorrings_wrap_hue_2pi(), DT_COLORSPACE_HLG_REC2020, DT_INTENT_PERCEPTUAL, DT_IOP_COLORPRIMARIES_NODE_COUNT, dt_ioppr_add_profile_info_to_list(), dt_ioppr_get_pipe_output_profile_info(), g, dt_iop_module_t::gui_data, IS_NULL_PTR, M_PI_F, p, dt_iop_module_t::params, and dt_develop_t::preview_pipe.

Referenced by gui_changed().

_set_slider_stop_from_hsb()

static void _set_slider_stop_from_hsb ( GtkWidget *  slider, const float  stop, const dt_aligned_pixel_t  HSB, const dt_iop_order_iccprofile_info_t *  display_profile  )

static

References dt_bauhaus_slider_set_stop(), dt_colorrings_graph_white(), dt_colorrings_hsb_to_display_rgb(), and RGB.

Referenced by _refresh_slider_gradients().

_set_slider_stop_from_profile_rgb()

static void _set_slider_stop_from_profile_rgb ( GtkWidget *  slider, const float  stop, const dt_aligned_pixel_t  RGB, const dt_iop_order_iccprofile_info_t *  lut_profile, const dt_iop_order_iccprofile_info_t *  display_profile  )

static

References dt_bauhaus_slider_set_stop(), dt_colorrings_profile_rgb_to_display_rgb(), and RGB.

Referenced by _refresh_slider_gradients().

_store_viewer_control_node()

static void _store_viewer_control_node ( dt_lut_viewer_control_node_t *const  control_nodes, int *const  count, const dt_aligned_pixel_t  input_rgb, const dt_aligned_pixel_t  output_rgb  )

inlinestatic

References dt_lut_viewer_control_node_t::input_rgb, and dt_lut_viewer_control_node_t::output_rgb.

Referenced by _build_viewer_control_nodes().

_update_gui_lut_cache()

static void _update_gui_lut_cache ( dt_iop_module_t *  self )

static

References _build_clut(), _build_viewer_control_nodes(), _lut_fields_equal(), dt_iop_colorprimaries_global_data_t::cache, dt_iop_colorprimaries_global_data_t::cache_generation, dt_iop_colorprimaries_global_data_t::cache_valid, dt_iop_colorprimaries_data_t::clut, dt_iop_colorprimaries_data_t::clut_level, dt_iop_module_t::dev, DT_COLORSPACE_HLG_REC2020, DT_INTENT_PERCEPTUAL, dt_ioppr_add_profile_info_to_list(), dt_ioppr_get_pipe_output_profile_info(), dt_lut_viewer_queue_draw(), dt_lut_viewer_set_control_nodes(), dt_lut_viewer_set_lut(), dt_pthread_rwlock_rdlock, dt_pthread_rwlock_unlock, dt_pthread_rwlock_wrlock, FALSE, g, dt_iop_module_t::global_data, dt_iop_module_t::gui_data, IS_NULL_PTR, dt_iop_colorprimaries_global_data_t::lock, p, dt_iop_module_t::params, dt_iop_colorprimaries_global_data_t::params, dt_develop_t::preview_pipe, and TRUE.

Referenced by commit_params().

aliases()

const char * aliases

(

)

autoset()

void autoset	(	struct dt_iop_module_t *	self,
		const struct dt_dev_pixelpipe_t *	pipe,
		const struct dt_dev_pixelpipe_iop_t *	piece,
		const void *	i
	)

References __OMP_PARALLEL_FOR__, dt_iop_buffer_dsc_t::channels, dt_dev_pixelpipe_iop_t::dsc_in, dt_colorrings_profile_rgb_to_Ych(), dt_ioppr_get_pipe_current_profile_info(), dt_iop_roi_t::height, i, IS_NULL_PTR, k, max, p, dt_iop_module_t::params, dt_dev_pixelpipe_iop_t::roi_out, and dt_iop_roi_t::width.

cleanup_global()

void cleanup_global

(

dt_iop_module_so_t *

module

)

References dt_iop_colorprimaries_global_data_t::cache, dt_iop_colorprimaries_data_t::clut, dt_iop_module_so_t::data, dt_free, dt_free_align, dt_pthread_rwlock_destroy, and dt_iop_colorprimaries_global_data_t::lock.

cleanup_pipe()

void cleanup_pipe	(	struct dt_iop_module_t *	self,
		dt_dev_pixelpipe_t *	pipe,
		dt_dev_pixelpipe_iop_t *	piece
	)

References d, dt_dev_pixelpipe_iop_t::data, and dt_free_align.

color_picker_apply()

void color_picker_apply	(	dt_iop_module_t *	self,
		GtkWidget *	picker,
		dt_dev_pixelpipe_t *	pipe,
		dt_dev_pixelpipe_iop_t *	piece
	)

References _pipe_rgb_to_Ych(), darktable, darktable_t::develop, dt_bauhaus_slider_set(), dt_dev_add_history_item, g, darktable_t::gui, dt_iop_module_t::gui_data, p, dt_iop_module_t::params, dt_iop_module_t::picked_color_max, dt_iop_module_t::picked_color_min, dt_gui_gtk_t::reset, and TRUE.

commit_params()

void commit_params	(	struct dt_iop_module_t *	self,
		dt_iop_params_t *	p1,
		dt_dev_pixelpipe_t *	pipe,
		dt_dev_pixelpipe_iop_t *	piece
	)

References _build_clut(), _lut_fields_equal(), _update_gui_lut_cache(), dt_iop_colorprimaries_global_data_t::cache, dt_iop_colorprimaries_global_data_t::cache_generation, dt_iop_colorprimaries_global_data_t::cache_valid, dt_iop_colorprimaries_data_t::clut, dt_iop_colorprimaries_data_t::clut_level, d, dt_dev_pixelpipe_iop_t::data, dt_iop_module_t::dev, DT_COLORSPACE_HLG_REC2020, DT_INTENT_PERCEPTUAL, dt_ioppr_add_profile_info_to_list(), dt_ioppr_get_pipe_current_profile_info(), DT_LUT3D_INTERP_TETRAHEDRAL, dt_pthread_rwlock_unlock, dt_pthread_rwlock_wrlock, g, dt_iop_module_t::global_data, dt_iop_module_t::gui_data, IS_NULL_PTR, dt_iop_colorprimaries_global_data_t::lock, p, dt_iop_colorprimaries_global_data_t::params, and TRUE.

default_colorspace()

int default_colorspace	(	dt_iop_module_t *	self,
		dt_dev_pixelpipe_t *	pipe,
		const dt_dev_pixelpipe_iop_t *	piece
	)

References IOP_CS_RGB.

default_group()

int default_group

(

)

References IOP_GROUP_COLOR.

description()

const char ** description

(

struct dt_iop_module_t *

self

)

References dt_iop_set_description().

flags()

int flags

(

)

References IOP_FLAGS_INCLUDE_IN_STYLES, and IOP_FLAGS_SUPPORTS_BLENDING.

gui_changed()

void gui_changed	(	dt_iop_module_t *	self,
		GtkWidget *	w,
		void *	previous
	)

References _refresh_slider_gradients(), g, dt_iop_module_t::gui_data, and IS_NULL_PTR.

Referenced by gui_update().

gui_cleanup()

void gui_cleanup

(

dt_iop_module_t *

self

)

References dt_lut_viewer_destroy(), g, dt_iop_module_t::gui_data, and IOP_GUI_FREE.

gui_init()

void gui_init

(

dt_iop_module_t *

self

)

References _new_section_label(), _node_name(), dt_iop_colorprimaries_params_t::brightness, dt_iop_module_t::default_params, dt_bauhaus_combobox_from_params(), dt_bauhaus_combobox_set_default(), dt_bauhaus_slider_from_params(), dt_bauhaus_slider_set_default(), dt_bauhaus_slider_set_format(), dt_bauhaus_slider_set_soft_range(), DT_BAUHAUS_SPACE, dt_bauhaus_widget_set_label(), DT_COLOR_PICKER_AREA, dt_color_picker_new(), dt_gui_add_class(), DT_GUI_MODULE, DT_IOP_COLORPRIMARIES_NODE_COUNT, dt_lut_viewer_get_widget(), dt_lut_viewer_new(), FALSE, g, dt_iop_colorprimaries_params_t::gamut_coverage, gui_update(), dt_iop_colorprimaries_params_t::hue, dt_iop_colorprimaries_params_t::interpolation, IOP_GUI_ALLOC, dt_iop_colorprimaries_params_t::neutral_protection, dt_iop_colorprimaries_params_t::saturation, dt_iop_colorprimaries_params_t::sigma_L, dt_iop_colorprimaries_params_t::sigma_rho, dt_iop_colorprimaries_params_t::sigma_theta, TRUE, dt_iop_colorprimaries_params_t::white_level, and dt_iop_module_t::widget.

gui_update()

void gui_update

(

dt_iop_module_t *

self

)

Todo:

check why needed

Todo:

by hand

References darktable, dt_bauhaus_combobox_set(), dt_bauhaus_slider_set(), DT_IOP_COLORPRIMARIES_NODE_COUNT, g, darktable_t::gui, gui_changed(), dt_iop_module_t::gui_data, p, dt_iop_module_t::params, and dt_gui_gtk_t::reset.

Referenced by gui_init().

init()

void init

(

dt_iop_module_t *

module

)

References _init_default_params(), dt_iop_module_t::default_params, dt_iop_default_init(), dt_iop_module_t::params, and dt_iop_module_t::params_size.

init_global()

void init_global

(

dt_iop_module_so_t *

module

)

References dt_pthread_rwlock_init, and dt_iop_colorprimaries_global_data_t::lock.

init_pipe()

void init_pipe	(	struct dt_iop_module_t *	self,
		dt_dev_pixelpipe_t *	pipe,
		dt_dev_pixelpipe_iop_t *	piece
	)

References d, dt_dev_pixelpipe_iop_t::data, dt_dev_pixelpipe_iop_t::data_size, dt_calloc_align(), and DT_LUT3D_INTERP_TETRAHEDRAL.

name()

const char * name

(

)

process()

__DT_CLONE_TARGETS__ int process	(	struct dt_iop_module_t *	self,
		const dt_dev_pixelpipe_t *	pipe,
		const dt_dev_pixelpipe_iop_t *	piece,
		const void *const	ibuf,
		void *const	obuf
	)

References __OMP_PARALLEL_FOR__, ch, dt_iop_buffer_dsc_t::channels, d, dt_dev_pixelpipe_iop_t::data, dt_dev_pixelpipe_iop_t::dsc_in, dt_iop_image_copy_by_size(), dt_ioppr_transform_image_colorspace_rgb(), dt_lut3d_apply(), dt_pthread_rwlock_rdlock, dt_pthread_rwlock_unlock, dt_iop_module_t::global_data, height, dt_iop_roi_t::height, IS_NULL_PTR, k, dt_iop_colorprimaries_global_data_t::lock, out, dt_dev_pixelpipe_iop_t::roi_in, width, and dt_iop_roi_t::width.

Variable Documentation

_chroma_edges

const dt_iop_colorprimaries_edge_t _chroma_edges[6]

static

Initial value:

= {
  { DT_IOP_COLORPRIMARIES_RED, DT_IOP_COLORPRIMARIES_YELLOW },
  { DT_IOP_COLORPRIMARIES_YELLOW, DT_IOP_COLORPRIMARIES_GREEN },
  { DT_IOP_COLORPRIMARIES_GREEN, DT_IOP_COLORPRIMARIES_CYAN },
  { DT_IOP_COLORPRIMARIES_CYAN, DT_IOP_COLORPRIMARIES_BLUE },
  { DT_IOP_COLORPRIMARIES_BLUE, DT_IOP_COLORPRIMARIES_MAGENTA },
  { DT_IOP_COLORPRIMARIES_MAGENTA, DT_IOP_COLORPRIMARIES_RED },
}

Referenced by _build_clut(), and _build_viewer_control_nodes().