profile_gamma.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 "develop/imageop_gui.h"
#include "dtgtk/button.h"
#include "gui/gtk.h"
#include "gui/presets.h"
#include "gui/color_picker_proxy.h"
#include "iop/iop_api.h"
#include <assert.h>
#include <stdlib.h>
#include <string.h>

Include dependency graph for profile_gamma.c:

Data Structures
struct	dt_iop_profilegamma_params_t
struct	dt_iop_profilegamma_gui_data_t
struct	dt_iop_profilegamma_data_t

Typedefs
typedef enum dt_iop_profilegamma_mode_t	dt_iop_profilegamma_mode_t
typedef struct dt_iop_profilegamma_params_t	dt_iop_profilegamma_params_t
typedef struct dt_iop_profilegamma_gui_data_t	dt_iop_profilegamma_gui_data_t
typedef struct dt_iop_profilegamma_data_t	dt_iop_profilegamma_data_t

Enumerations
enum	dt_iop_profilegamma_mode_t {   PROFILEGAMMA_LOG = 0 ,   PROFILEGAMMA_GAMMA = 1 }

Functions
const char *	name ()
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)
void	init_presets (dt_iop_module_so_t *self)
int	legacy_params (dt_iop_module_t *self, const void *const old_params, const int old_version, void *new_params, const int new_version)
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)
static void	apply_auto_grey (dt_iop_module_t *self)
static void	apply_auto_black (dt_iop_module_t *self)
static void	apply_auto_dynamic_range (dt_iop_module_t *self)
static void	apply_autotune (dt_iop_module_t *self)
void	gui_changed (dt_iop_module_t *self, GtkWidget *w, void *previous)
void	color_picker_apply (dt_iop_module_t *self, GtkWidget *picker, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
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_reset (dt_iop_module_t *self)
void	gui_update (dt_iop_module_t *self)
	Refresh GUI controls from current params and configuration.
void	gui_init (dt_iop_module_t *self)

Typedef Documentation

dt_iop_profilegamma_data_t

typedef struct dt_iop_profilegamma_data_t dt_iop_profilegamma_data_t

dt_iop_profilegamma_gui_data_t

typedef struct dt_iop_profilegamma_gui_data_t dt_iop_profilegamma_gui_data_t

dt_iop_profilegamma_mode_t

typedef enum dt_iop_profilegamma_mode_t dt_iop_profilegamma_mode_t

dt_iop_profilegamma_params_t

typedef struct dt_iop_profilegamma_params_t dt_iop_profilegamma_params_t

Enumeration Type Documentation

dt_iop_profilegamma_mode_t

enum dt_iop_profilegamma_mode_t

Enumerator
PROFILEGAMMA_LOG
PROFILEGAMMA_GAMMA

Function Documentation

apply_auto_black()

static void apply_auto_black ( dt_iop_module_t *  self )

static

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

Referenced by color_picker_apply().

apply_auto_dynamic_range()

static void apply_auto_dynamic_range ( dt_iop_module_t *  self )

static

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

Referenced by color_picker_apply().

apply_auto_grey()

static void apply_auto_grey ( dt_iop_module_t *  self )

static

References 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, dt_gui_gtk_t::reset, and TRUE.

Referenced by color_picker_apply().

apply_autotune()

static void apply_autotune ( dt_iop_module_t *  self )

static

References darktable, darktable_t::develop, dt_bauhaus_slider_set(), dt_dev_add_history_item, g, darktable_t::gui, dt_iop_module_t::gui_data, Log2Thres(), 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, and TRUE.

Referenced by color_picker_apply().

cleanup_pipe()

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

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
	)

References apply_auto_black(), apply_auto_dynamic_range(), apply_auto_grey(), 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
	)

References a, b, c, d, dt_dev_pixelpipe_iop_t::data, dt_iop_estimate_exp(), g, linear, p, and x.

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_TECHNICAL.

description()

const char ** description

(

struct dt_iop_module_t *

self

)

References dt_iop_set_description().

flags()

int flags

(

)

References IOP_FLAGS_ALLOW_TILING, IOP_FLAGS_INCLUDE_IN_STYLES, IOP_FLAGS_ONE_INSTANCE, and IOP_FLAGS_SUPPORTS_BLENDING.

gui_changed()

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

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

Referenced by gui_update().

gui_init()

void gui_init

(

dt_iop_module_t *

self

)

References darktable_t::bauhaus, darktable, dt_bauhaus_combobox_from_params(), dt_bauhaus_combobox_new(), dt_bauhaus_slider_from_params(), dt_bauhaus_slider_set_digits(), dt_bauhaus_slider_set_format(), dt_bauhaus_slider_set_soft_max(), dt_bauhaus_slider_set_soft_range(), DT_BAUHAUS_SPACE, dt_bauhaus_widget_set_label(), DT_COLOR_PICKER_AREA, dt_color_picker_new(), DT_GUI_MODULE, dt_ui_section_label_new(), FALSE, g, IOP_GUI_ALLOC, TRUE, and dt_iop_module_t::widget.

gui_reset()

void gui_reset

(

dt_iop_module_t *

self

)

References dt_iop_color_picker_reset(), 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

References dt_iop_color_picker_reset(), g, gui_changed(), dt_iop_module_t::gui_data, and TRUE.

init_pipe()

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

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

)

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

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
	)

References d, dt_iop_module_t::default_params, linear, n, and PROFILEGAMMA_GAMMA.

name()

const char * name

(

)

process()

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

References dt_iop_buffer_dsc_t::channels, dt_dev_pixelpipe_iop_t::data, dt_dev_pixelpipe_iop_t::dsc_in, DT_DEV_PIXELPIPE_DISPLAY_MASK, dt_iop_alpha_copy(), dt_iop_eval_exp(), dt_iop_profilegamma_data_t::dynamic_range, fastlog2(), dt_iop_profilegamma_data_t::grey_point, dt_iop_roi_t::height, i, dt_dev_pixelpipe_t::mask_display, dt_iop_profilegamma_data_t::mode, out, PROFILEGAMMA_GAMMA, PROFILEGAMMA_LOG, dt_dev_pixelpipe_iop_t::roi_out, dt_iop_profilegamma_data_t::shadows_range, dt_iop_profilegamma_data_t::table, dt_iop_profilegamma_data_t::unbounded_coeffs, and dt_iop_roi_t::width.