Ansel 0.0
A darktable fork - bloat + design vision
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Data Structures | Macros | Typedefs | Functions
filmic.c File Reference
#include "bauhaus/bauhaus.h"
#include "common/colorspaces_inline_conversions.h"
#include "common/darktable.h"
#include "common/math.h"
#include "common/opencl.h"
#include "control/control.h"
#include "develop/develop.h"
#include "develop/imageop_math.h"
#include "dtgtk/button.h"
#include "dtgtk/drawingarea.h"
#include "dtgtk/expander.h"
#include "dtgtk/paint.h"
#include "gui/gtk.h"
#include "gui/presets.h"
#include "gui/color_picker_proxy.h"
#include "iop/iop_api.h"
#include "develop/imageop.h"
#include "gui/draw.h"
#include <assert.h>
#include <stdlib.h>
#include <string.h>
+ Include dependency graph for filmic.c:

Go to the source code of this file.

Data Structures

struct  dt_iop_filmic_params_t
 
struct  dt_iop_filmic_gui_data_t
 
struct  dt_iop_filmic_data_t
 
struct  dt_iop_filmic_nodes_t
 
struct  dt_iop_filmic_global_data_t
 

Macros

#define DT_GUI_CURVE_EDITOR_INSET   DT_PIXEL_APPLY_DPI(1)
 

Typedefs

typedef struct dt_iop_filmic_params_t dt_iop_filmic_params_t
 
typedef struct dt_iop_filmic_gui_data_t dt_iop_filmic_gui_data_t
 
typedef struct dt_iop_filmic_data_t dt_iop_filmic_data_t
 
typedef struct dt_iop_filmic_nodes_t dt_iop_filmic_nodes_t
 
typedef struct dt_iop_filmic_global_data_t dt_iop_filmic_global_data_t
 

Functions

const char * name ()
 
int default_group ()
 
int flags ()
 
const char * deprecated_msg ()
 
int default_colorspace (dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, const dt_dev_pixelpipe_iop_t *piece)
 
void input_format (dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece, dt_iop_buffer_dsc_t *dsc)
 
int legacy_params (dt_iop_module_t *self, const void *const old_params, const int old_version, void *new_params, const int new_version)
 
void init_presets (dt_iop_module_so_t *self)
 
static float gaussian (float x, float std)
 
__DT_CLONE_TARGETS__ int process (dt_iop_module_t *self, const dt_dev_pixelpipe_t *pipe, const dt_dev_pixelpipe_iop_t *piece, const void *const ivoid, void *const ovoid)
 
int process_cl (struct dt_iop_module_t *self, const dt_dev_pixelpipe_t *pipe, const dt_dev_pixelpipe_iop_t *piece, cl_mem dev_in, cl_mem dev_out)
 
static void sanitize_latitude (dt_iop_filmic_params_t *p, dt_iop_filmic_gui_data_t *g)
 
static void apply_auto_grey (dt_iop_module_t *self)
 
static void apply_auto_black (dt_iop_module_t *self)
 
static void apply_auto_white_point_source (dt_iop_module_t *self)
 
static void security_threshold_callback (GtkWidget *slider, gpointer user_data)
 
static void apply_autotune (dt_iop_module_t *self)
 
void color_picker_apply (dt_iop_module_t *self, GtkWidget *picker, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
 
static void grey_point_source_callback (GtkWidget *slider, gpointer user_data)
 
static void white_point_source_callback (GtkWidget *slider, gpointer user_data)
 
static void black_point_source_callback (GtkWidget *slider, gpointer user_data)
 
static void grey_point_target_callback (GtkWidget *slider, gpointer user_data)
 
static void latitude_stops_callback (GtkWidget *slider, gpointer user_data)
 
static void contrast_callback (GtkWidget *slider, gpointer user_data)
 
static void saturation_callback (GtkWidget *slider, gpointer user_data)
 
static void global_saturation_callback (GtkWidget *slider, gpointer user_data)
 
static void white_point_target_callback (GtkWidget *slider, gpointer user_data)
 
static void black_point_target_callback (GtkWidget *slider, gpointer user_data)
 
static void output_power_callback (GtkWidget *slider, gpointer user_data)
 
static void balance_callback (GtkWidget *slider, gpointer user_data)
 
static void interpolator_callback (GtkWidget *widget, dt_iop_module_t *self)
 
static void preserve_color_callback (GtkWidget *widget, dt_iop_module_t *self)
 
void compute_curve_lut (dt_iop_filmic_params_t *p, float *table, float *table_temp, int res, dt_iop_filmic_data_t *d, dt_iop_filmic_nodes_t *nodes_data)
 
void commit_params (dt_iop_module_t *self, dt_iop_params_t *p1, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
 
void init_pipe (dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
 
void cleanup_pipe (dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
 
void gui_update (dt_iop_module_t *self)
 Refresh GUI controls from current params and configuration.
 
void init (dt_iop_module_t *module)
 
void init_global (dt_iop_module_so_t *module)
 
void cleanup (dt_iop_module_t *module)
 
void cleanup_global (dt_iop_module_so_t *module)
 
void gui_reset (dt_iop_module_t *self)
 
static gboolean dt_iop_tonecurve_draw (GtkWidget *widget, cairo_t *crf, gpointer user_data)
 
static void _extra_options_button_changed (GtkDarktableToggleButton *widget, gpointer user_data)
 
void gui_init (dt_iop_module_t *self)
 

Macro Definition Documentation

◆ DT_GUI_CURVE_EDITOR_INSET

#define DT_GUI_CURVE_EDITOR_INSET   DT_PIXEL_APPLY_DPI(1)

Definition at line 67 of file filmic.c.

Typedef Documentation

◆ dt_iop_filmic_data_t

typedef struct dt_iop_filmic_data_t dt_iop_filmic_data_t

◆ dt_iop_filmic_global_data_t

typedef struct dt_iop_filmic_global_data_t dt_iop_filmic_global_data_t

◆ dt_iop_filmic_gui_data_t

typedef struct dt_iop_filmic_gui_data_t dt_iop_filmic_gui_data_t

◆ dt_iop_filmic_nodes_t

typedef struct dt_iop_filmic_nodes_t dt_iop_filmic_nodes_t

◆ dt_iop_filmic_params_t

typedef struct dt_iop_filmic_params_t dt_iop_filmic_params_t

DOCUMENTATION

This code ports :

  1. Troy Sobotka's filmic curves for Blender (and other softs) https://github.com/sobotka/OpenAgX/blob/master/lib/agx_colour.py
  2. ACES camera logarithmic encoding https://github.com/ampas/aces-dev/blob/master/transforms/ctl/utilities/ACESutil.Lin_to_Log2_param.ctl

The ACES log implementation is taken from the profile_gamma.c IOP where it works in camera RGB space. Here, it works on an arbitrary RGB space. ProPhotoRGB has been chosen for its wide gamut coverage and for conveniency because it's already in darktable's libs. Any other RGB working space could work. This chouice could (should) also be exposed to the user.

The filmic curves are tonecurves intended to simulate the luminance transfer function of film with "S" curves. These could be reproduced in the tonecurve.c IOP, however what we offer here is a parametric interface useful to remap accurately and promptly the middle grey to any arbitrary value chosen accordingly to the destination space.

The combined use of both define a modern way to deal with large dynamic range photographs by remapping the values with a comprehensive interface avoiding many of the back and forth adjustments darktable is prone to enforce.

Function Documentation

◆ _extra_options_button_changed()

static void _extra_options_button_changed ( GtkDarktableToggleButton *  widget,
gpointer  user_data 
)
static

Definition at line 1449 of file filmic.c.

References CPF_DIRECTION_DOWN, CPF_DIRECTION_LEFT, dtgtk_cairo_paint_solid_arrow(), DTGTK_EXPANDER, dtgtk_expander_set_expanded(), DTGTK_TOGGLEBUTTON, dtgtk_togglebutton_set_paint(), g, and dt_iop_module_t::gui_data.

Referenced by gui_init().

◆ apply_auto_black()

static void apply_auto_black ( dt_iop_module_t *  self)
static

Definition at line 618 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_set(), dt_dev_add_history_item, dt_Lab_to_XYZ(), g, darktable_t::gui, dt_iop_module_t::gui_data, Log2Thres(), noise, p, dt_iop_module_t::params, dt_iop_module_t::picked_color_min, dt_gui_gtk_t::reset, sanitize_latitude(), TRUE, dt_iop_module_t::widget, and XYZ.

Referenced by color_picker_apply().

◆ apply_auto_grey()

static void apply_auto_grey ( dt_iop_module_t *  self)
static

Definition at line 592 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_set(), dt_dev_add_history_item, dt_Lab_to_XYZ(), g, darktable_t::gui, dt_iop_module_t::gui_data, Log2(), p, dt_iop_module_t::params, dt_iop_module_t::picked_color, dt_gui_gtk_t::reset, TRUE, dt_iop_module_t::widget, and XYZ.

Referenced by color_picker_apply().

◆ apply_auto_white_point_source()

static void apply_auto_white_point_source ( dt_iop_module_t *  self)
static

Definition at line 646 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_set(), dt_dev_add_history_item, dt_Lab_to_XYZ(), g, darktable_t::gui, dt_iop_module_t::gui_data, Log2Thres(), noise, p, dt_iop_module_t::params, dt_iop_module_t::picked_color_max, dt_gui_gtk_t::reset, sanitize_latitude(), TRUE, dt_iop_module_t::widget, and XYZ.

Referenced by color_picker_apply().

◆ apply_autotune()

static void apply_autotune ( dt_iop_module_t *  self)
static

Definition at line 706 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_set(), dt_dev_add_history_item, dt_Lab_to_XYZ(), g, darktable_t::gui, dt_iop_module_t::gui_data, Log2Thres(), noise, p, dt_iop_module_t::params, dt_iop_module_t::picked_color, dt_iop_module_t::picked_color_max, dt_iop_module_t::picked_color_min, dt_gui_gtk_t::reset, sanitize_latitude(), TRUE, dt_iop_module_t::widget, and XYZ.

Referenced by color_picker_apply().

◆ balance_callback()

static void balance_callback ( GtkWidget *  slider,
gpointer  user_data 
)
static

Definition at line 908 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_get(), dt_dev_add_history_item, dt_iop_color_picker_reset(), darktable_t::gui, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, TRUE, and dt_iop_module_t::widget.

Referenced by gui_init().

◆ black_point_source_callback()

static void black_point_source_callback ( GtkWidget *  slider,
gpointer  user_data 
)
static

Definition at line 801 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_get(), dt_dev_add_history_item, dt_iop_color_picker_reset(), g, darktable_t::gui, dt_iop_module_t::gui_data, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, sanitize_latitude(), TRUE, and dt_iop_module_t::widget.

Referenced by gui_init().

◆ black_point_target_callback()

static void black_point_target_callback ( GtkWidget *  slider,
gpointer  user_data 
)
static

Definition at line 886 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_get(), dt_dev_add_history_item, dt_iop_color_picker_reset(), darktable_t::gui, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, TRUE, and dt_iop_module_t::widget.

Referenced by gui_init().

◆ cleanup()

void cleanup ( dt_iop_module_t *  module)

Definition at line 1325 of file filmic.c.

References dt_iop_module_t::default_params, dt_free, and dt_iop_module_t::params.

◆ cleanup_global()

void cleanup_global ( dt_iop_module_so_t *  module)

Definition at line 1331 of file filmic.c.

References dt_iop_module_so_t::data, dt_free, dt_opencl_free_kernel(), and dt_iop_filmic_global_data_t::kernel_filmic.

◆ cleanup_pipe()

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

Definition at line 1249 of file filmic.c.

References 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 
)

Definition at line 746 of file filmic.c.

References apply_auto_black(), apply_auto_grey(), apply_auto_white_point_source(), apply_autotune(), g, and dt_iop_module_t::gui_data.

◆ commit_params()

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

Definition at line 1178 of file filmic.c.

References __OMP_PARALLEL_FOR_SIMD__, compute_curve_lut(), d, dt_dev_pixelpipe_iop_t::data, dt_free, k, p, sigma, and x.

◆ compute_curve_lut()

void compute_curve_lut ( dt_iop_filmic_params_t *  p,
float *  table,
float *  table_temp,
int  res,
dt_iop_filmic_data_t *  d,
dt_iop_filmic_nodes_t *  nodes_data 
)

Now we have 3 segments :

  • x = [0.0 ; toe_log], curved part
  • x = [toe_log ; grey_log ; shoulder_log], linear part
  • x = [shoulder_log ; 1.0] curved part

BUT : in case some nodes overlap, we need to remove them to avoid degenerating of the curve

Definition at line 967 of file filmic.c.

References __OMP_PARALLEL_FOR_SIMD__, coeff, CUBIC_SPLINE, d, dt_draw_curve_add_point(), dt_draw_curve_calc_values(), dt_draw_curve_destroy(), dt_draw_curve_new(), FALSE, IS_NULL_PTR, k, MONOTONE_HERMITE, dt_iop_filmic_nodes_t::nodes, p, TRUE, dt_iop_filmic_nodes_t::x, and dt_iop_filmic_nodes_t::y.

Referenced by commit_params(), and dt_iop_tonecurve_draw().

◆ contrast_callback()

static void contrast_callback ( GtkWidget *  slider,
gpointer  user_data 
)
static

Definition at line 844 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_get(), dt_dev_add_history_item, dt_iop_color_picker_reset(), darktable_t::gui, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, TRUE, and dt_iop_module_t::widget.

Referenced by gui_init().

◆ default_colorspace()

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

Definition at line 197 of file filmic.c.

References IOP_CS_LAB.

◆ default_group()

int default_group ( )

Definition at line 182 of file filmic.c.

References IOP_GROUP_TONES.

◆ deprecated_msg()

const char * deprecated_msg ( )

Definition at line 192 of file filmic.c.

◆ dt_iop_tonecurve_draw()

static gboolean dt_iop_tonecurve_draw ( GtkWidget *  widget,
cairo_t *  crf,
gpointer  user_data 
)
static

Definition at line 1348 of file filmic.c.

References compute_curve_lut(), d, dt_cairo_image_surface_create(), dt_draw_grid(), dt_free, DT_GUI_CURVE_EDITOR_INSET, DT_PIXEL_APPLY_DPI, FALSE, dt_iop_module_t::gui_data, height, i, k, Log2(), M_PI, dt_iop_filmic_nodes_t::nodes, p, dt_iop_module_t::params, TRUE, width, x, dt_iop_filmic_nodes_t::x, and dt_iop_filmic_nodes_t::y.

Referenced by gui_init().

◆ flags()

int flags ( )

Definition at line 187 of file filmic.c.

References IOP_FLAGS_ALLOW_TILING, IOP_FLAGS_DEPRECATED, IOP_FLAGS_INCLUDE_IN_STYLES, and IOP_FLAGS_SUPPORTS_BLENDING.

◆ gaussian()

static float gaussian ( float  x,
float  std 
)
inlinestatic

Definition at line 397 of file filmic.c.

References M_PI, and x.

◆ global_saturation_callback()

static void global_saturation_callback ( GtkWidget *  slider,
gpointer  user_data 
)
static

Definition at line 865 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_get(), dt_dev_add_history_item, dt_iop_color_picker_reset(), darktable_t::gui, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, and TRUE.

Referenced by gui_init().

◆ grey_point_source_callback()

static void grey_point_source_callback ( GtkWidget *  slider,
gpointer  user_data 
)
static

Definition at line 761 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_get(), dt_bauhaus_slider_set(), dt_dev_add_history_item, dt_iop_color_picker_reset(), g, darktable_t::gui, dt_iop_module_t::gui_data, Log2(), p, dt_iop_module_t::params, dt_gui_gtk_t::reset, TRUE, and dt_iop_module_t::widget.

Referenced by gui_init().

◆ grey_point_target_callback()

static void grey_point_target_callback ( GtkWidget *  slider,
gpointer  user_data 
)
static

Definition at line 817 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_get(), dt_dev_add_history_item, dt_iop_color_picker_reset(), darktable_t::gui, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, TRUE, and dt_iop_module_t::widget.

Referenced by gui_init().

◆ gui_init()

void gui_init ( dt_iop_module_t *  self)

Definition at line 1459 of file filmic.c.

References _extra_options_button_changed(), balance_callback(), darktable_t::bauhaus, black_point_source_callback(), black_point_target_callback(), contrast_callback(), CPF_DIRECTION_LEFT, darktable, dt_iop_module_t::default_params, dt_bauhaus_combobox_add(), dt_bauhaus_combobox_new(), dt_bauhaus_slider_new_with_range(), dt_bauhaus_slider_set_format(), dt_bauhaus_slider_set_soft_range(), dt_bauhaus_widget_set_label(), DT_COLOR_PICKER_AREA, dt_color_picker_new(), DT_GUI_BOX_SPACING, DT_GUI_MODULE, dt_iop_tonecurve_draw(), dt_ui_resizable_drawing_area(), dt_ui_section_label_new(), dtgtk_cairo_paint_solid_arrow(), DTGTK_EXPANDER, dtgtk_expander_new(), dtgtk_expander_set_expanded(), dtgtk_togglebutton_new(), FALSE, g, global_saturation_callback(), grey_point_source_callback(), grey_point_target_callback(), interpolator_callback(), IOP_GUI_ALLOC, latitude_stops_callback(), output_power_callback(), p, preserve_color_callback(), saturation_callback(), security_threshold_callback(), TRUE, white_point_source_callback(), white_point_target_callback(), and dt_iop_module_t::widget.

◆ gui_reset()

void gui_reset ( dt_iop_module_t *  self)

Definition at line 1338 of file filmic.c.

References CPF_DIRECTION_LEFT, dt_iop_color_picker_reset(), dtgtk_cairo_paint_solid_arrow(), DTGTK_EXPANDER, dtgtk_expander_set_expanded(), DTGTK_TOGGLEBUTTON, dtgtk_togglebutton_set_paint(), FALSE, g, dt_iop_module_t::gui_data, and TRUE.

◆ gui_update()

void gui_update ( dt_iop_module_t *  self)

Refresh GUI controls from current params and configuration.

Todo:
check why needed
Todo:
by hand

Definition at line 1255 of file filmic.c.

References dt_bauhaus_combobox_set(), dt_bauhaus_slider_set(), dt_iop_color_picker_reset(), DTGTK_EXPANDER, dtgtk_expander_set_expanded(), g, dt_iop_module_t::gui_data, p, TRUE, and dt_iop_module_t::widget.

◆ init()

void init ( dt_iop_module_t *  module)

Definition at line 1287 of file filmic.c.

References CUBIC_SPLINE, and dt_iop_module_t::default_params.

◆ init_global()

void init_global ( dt_iop_module_so_t *  module)

Definition at line 1315 of file filmic.c.

References dt_opencl_create_kernel(), and dt_iop_filmic_global_data_t::kernel_filmic.

◆ init_pipe()

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

Definition at line 1243 of file filmic.c.

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

◆ init_presets()

void init_presets ( dt_iop_module_so_t *  self)

Definition at line 302 of file filmic.c.

References CUBIC_SPLINE, DEVELOP_BLEND_CS_RGB_DISPLAY, dt_gui_presets_add_generic(), dt_iop_module_so_t::op, and p.

◆ input_format()

void input_format ( dt_iop_module_t *  self,
dt_dev_pixelpipe_t *  pipe,
dt_dev_pixelpipe_iop_t *  piece,
dt_iop_buffer_dsc_t *  dsc 
)

Definition at line 202 of file filmic.c.

References dt_iop_buffer_dsc_t::channels, dt_iop_buffer_dsc_t::datatype, default_input_format(), and TYPE_FLOAT.

◆ interpolator_callback()

static void interpolator_callback ( GtkWidget *  widget,
dt_iop_module_t *  self 
)
static

Definition at line 919 of file filmic.c.

References CATMULL_ROM, CUBIC_SPLINE, darktable, darktable_t::develop, dt_bauhaus_combobox_get(), dt_dev_add_history_item, dt_iop_color_picker_reset(), darktable_t::gui, MONOTONE_HERMITE, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, TRUE, and dt_iop_module_t::widget.

Referenced by gui_init().

◆ latitude_stops_callback()

static void latitude_stops_callback ( GtkWidget *  slider,
gpointer  user_data 
)
static

Definition at line 828 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_get(), dt_dev_add_history_item, dt_iop_color_picker_reset(), g, darktable_t::gui, dt_iop_module_t::gui_data, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, sanitize_latitude(), TRUE, and dt_iop_module_t::widget.

Referenced by gui_init().

◆ legacy_params()

int legacy_params ( dt_iop_module_t *  self,
const void *const  old_params,
const int  old_version,
void *  new_params,
const int  new_version 
)

Definition at line 210 of file filmic.c.

References d, dt_iop_module_t::default_params, and n.

◆ name()

const char * name ( )

Definition at line 177 of file filmic.c.

◆ output_power_callback()

static void output_power_callback ( GtkWidget *  slider,
gpointer  user_data 
)
static

Definition at line 897 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_get(), dt_dev_add_history_item, dt_iop_color_picker_reset(), darktable_t::gui, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, TRUE, and dt_iop_module_t::widget.

Referenced by gui_init().

◆ preserve_color_callback()

static void preserve_color_callback ( GtkWidget *  widget,
dt_iop_module_t *  self 
)
static

Definition at line 959 of file filmic.c.

References darktable, darktable_t::develop, dt_dev_add_history_item, darktable_t::gui, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, and TRUE.

Referenced by gui_init().

◆ process()

__DT_CLONE_TARGETS__ int process ( dt_iop_module_t *  self,
const dt_dev_pixelpipe_t *  pipe,
const dt_dev_pixelpipe_iop_t *  piece,
const void *const  ivoid,
void *const  ovoid 
)

The log2(x) -> -INF when x -> 0 thus very low values (noise) will get even lower, resulting in noise negative amplification, which leads to pepper noise in shadows. To avoid that, we need to clip values that are noise for sure. Using 16 bits RAW data, the black value (known by rawspeed for every manufacturer) could be used as a threshold. However, at this point of the pixelpipe, the RAW levels have already been corrected and everything can happen with black levels in the exposure module. So we define the threshold as the first non-null 16 bit integer

Definition at line 403 of file filmic.c.

References __OMP_PARALLEL_FOR_SIMD__, dt_iop_filmic_data_t::black_source, ch, dt_dev_pixelpipe_iop_t::data, DT_ALIGNED_ARRAY, DT_DEV_PIXELPIPE_DISPLAY_MASK, dt_Lab_to_XYZ(), dt_prophotorgb_to_XYZ(), dt_XYZ_to_prophotorgb(), dt_iop_filmic_data_t::dynamic_range, FALSE, fastlog2(), dt_iop_filmic_data_t::global_saturation, dt_iop_filmic_data_t::grad_2, dt_iop_filmic_data_t::grey_source, dt_iop_roi_t::height, k, dt_dev_pixelpipe_t::mask_display, max, out, dt_iop_filmic_data_t::output_power, ovoid, dt_iop_filmic_data_t::preserve_color, rgb, dt_dev_pixelpipe_iop_t::roi_out, dt_iop_filmic_data_t::table, TRUE, dt_iop_roi_t::width, and XYZ.

◆ process_cl()

int process_cl ( struct dt_iop_module_t *  self,
const dt_dev_pixelpipe_t *  pipe,
const dt_dev_pixelpipe_iop_t *  piece,
cl_mem  dev_in,
cl_mem  dev_out 
)

Definition at line 521 of file filmic.c.

References d, dt_dev_pixelpipe_iop_t::data, dt_dev_pixelpipe_t::devid, DT_DEBUG_OPENCL, dt_opencl_copy_host_to_device(), dt_opencl_enqueue_kernel_2d(), dt_opencl_release_mem_object(), dt_opencl_set_kernel_arg(), dt_print(), error(), FALSE, dt_iop_module_t::global_data, height, dt_iop_roi_t::height, IS_NULL_PTR, dt_iop_filmic_global_data_t::kernel_filmic, dt_dev_pixelpipe_iop_t::roi_in, ROUNDUPDHT, ROUNDUPDWD, TRUE, width, and dt_iop_roi_t::width.

◆ sanitize_latitude()

static void sanitize_latitude ( dt_iop_filmic_params_t *  p,
dt_iop_filmic_gui_data_t *  g 
)
static

Definition at line 579 of file filmic.c.

References darktable, dt_bauhaus_slider_set(), g, darktable_t::gui, p, and dt_gui_gtk_t::reset.

Referenced by apply_auto_black(), apply_auto_white_point_source(), apply_autotune(), black_point_source_callback(), latitude_stops_callback(), security_threshold_callback(), and white_point_source_callback().

◆ saturation_callback()

static void saturation_callback ( GtkWidget *  slider,
gpointer  user_data 
)
static

Definition at line 855 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_get(), dt_dev_add_history_item, dt_iop_color_picker_reset(), darktable_t::gui, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, and TRUE.

Referenced by gui_init().

◆ security_threshold_callback()

static void security_threshold_callback ( GtkWidget *  slider,
gpointer  user_data 
)
static

Definition at line 673 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_get(), dt_bauhaus_slider_set(), dt_dev_add_history_item, dt_iop_color_picker_reset(), g, darktable_t::gui, dt_iop_module_t::gui_data, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, sanitize_latitude(), TRUE, and dt_iop_module_t::widget.

Referenced by gui_init().

◆ white_point_source_callback()

static void white_point_source_callback ( GtkWidget *  slider,
gpointer  user_data 
)
static

Definition at line 785 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_get(), dt_dev_add_history_item, dt_iop_color_picker_reset(), g, darktable_t::gui, dt_iop_module_t::gui_data, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, sanitize_latitude(), TRUE, and dt_iop_module_t::widget.

Referenced by gui_init().

◆ white_point_target_callback()

static void white_point_target_callback ( GtkWidget *  slider,
gpointer  user_data 
)
static

Definition at line 875 of file filmic.c.

References darktable, darktable_t::develop, dt_bauhaus_slider_get(), dt_dev_add_history_item, dt_iop_color_picker_reset(), darktable_t::gui, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, TRUE, and dt_iop_module_t::widget.

Referenced by gui_init().