levels.c File Reference

#include <assert.h>
#include <math.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "bauhaus/bauhaus.h"
#include "common/colorspaces.h"
#include "common/opencl.h"
#include "control/control.h"
#include "develop/develop.h"
#include "develop/imageop.h"
#include "develop/imageop_math.h"
#include "develop/imageop_gui.h"
#include "develop/openmp_maths.h"
#include "dtgtk/drawingarea.h"
#include "gui/draw.h"
#include "gui/gtk.h"
#include "gui/presets.h"
#include "iop/iop_api.h"
#include "libs/colorpicker.h"

Include dependency graph for levels.c:

Data Structures
struct	dt_iop_levels_params_t
struct	dt_iop_levels_gui_data_t
struct	dt_iop_levels_data_t

Macros
#define	DT_GUI_CURVE_EDITOR_INSET   DT_PIXEL_APPLY_DPI(5)
#define	DT_GUI_CURVE_INFL   .3f

Typedefs
typedef enum dt_iop_levels_mode_t	dt_iop_levels_mode_t
typedef struct dt_iop_levels_params_t	dt_iop_levels_params_t
typedef struct dt_iop_levels_gui_data_t	dt_iop_levels_gui_data_t
typedef struct dt_iop_levels_data_t	dt_iop_levels_data_t

Enumerations
enum	dt_iop_levels_mode_t {   LEVELS_MODE_MANUAL ,   LEVELS_MODE_AUTOMATIC }

Functions
static gboolean	dt_iop_levels_area_draw (GtkWidget *widget, cairo_t *crf, gpointer user_data)
static gboolean	dt_iop_levels_motion_notify (GtkWidget *widget, GdkEventMotion *event, gpointer user_data)
static gboolean	dt_iop_levels_button_press (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
static gboolean	dt_iop_levels_button_release (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
static gboolean	dt_iop_levels_leave_notify (GtkWidget *widget, GdkEventCrossing *event, gpointer user_data)
static gboolean	dt_iop_levels_scroll (GtkWidget *widget, GdkEventScroll *event, gpointer user_data)
static void	dt_iop_levels_autoadjust_callback (GtkRange *range, dt_iop_module_t *self)
const char *	name ()
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	input_format (dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece, dt_iop_buffer_dsc_t *dsc)
const char **	description (struct dt_iop_module_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)
static void	dt_iop_levels_compute_levels_manual (const uint32_t *histogram, float *levels)
static void	dt_iop_levels_compute_levels_automatic (dt_iop_module_t *self, const dt_dev_pixelpipe_iop_t *piece)
static void	compute_lut (const dt_dev_pixelpipe_iop_t *piece)
void	color_picker_apply (dt_iop_module_t *self, GtkWidget *picker, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
static void	commit_params_late (dt_iop_module_t *self, const dt_dev_pixelpipe_t *pipe, const dt_dev_pixelpipe_iop_t *piece)
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)
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_changed (dt_iop_module_t *self, GtkWidget *w, void *previous)
void	gui_update (dt_iop_module_t *self)
	Refresh GUI controls from current params and configuration.
void	init (dt_iop_module_t *module)
void	gui_init (dt_iop_module_t *self)
void	gui_cleanup (dt_iop_module_t *self)
static void	dt_iop_levels_move_handle (dt_iop_module_t *self, int handle_move, float new_pos, float *levels, float drag_start_percentage)

Macro Definition Documentation

DT_GUI_CURVE_EDITOR_INSET

#define DT_GUI_CURVE_EDITOR_INSET   DT_PIXEL_APPLY_DPI(5)

DT_GUI_CURVE_INFL

#define DT_GUI_CURVE_INFL   .3f

Typedef Documentation

dt_iop_levels_data_t

typedef struct dt_iop_levels_data_t dt_iop_levels_data_t

dt_iop_levels_gui_data_t

typedef struct dt_iop_levels_gui_data_t dt_iop_levels_gui_data_t

dt_iop_levels_mode_t

typedef enum dt_iop_levels_mode_t dt_iop_levels_mode_t

dt_iop_levels_params_t

typedef struct dt_iop_levels_params_t dt_iop_levels_params_t

Enumeration Type Documentation

dt_iop_levels_mode_t

enum dt_iop_levels_mode_t

Enumerator
LEVELS_MODE_MANUAL
LEVELS_MODE_AUTOMATIC

Function Documentation

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 c, darktable, darktable_t::develop, dt_dev_add_history_item, dt_iop_module_t::gui_data, levels(), p, dt_iop_module_t::params, dt_iop_module_t::picked_color, TRUE, and void().

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 dt_dev_histogram_collection_params_t::bins_count, compute_lut(), d, dt_dev_pixelpipe_iop_t::data, dt_iop_module_t::dev, dt_dev_pixelpipe_has_preview_output(), DT_REQUEST_ON, DT_REQUEST_ONLY_IN_GUI, dt_develop_t::gui_attached, dt_dev_pixelpipe_iop_t::histogram_params, LEVELS_MODE_AUTOMATIC, LEVELS_MODE_MANUAL, p, dt_iop_module_t::request_histogram, and dt_dev_pixelpipe_iop_t::request_histogram.

commit_params_late()

static void commit_params_late ( dt_iop_module_t *  self, const dt_dev_pixelpipe_t *  pipe, const dt_dev_pixelpipe_iop_t *  piece  )

static

References compute_lut(), d, dt_dev_pixelpipe_iop_t::data, dt_iop_module_t::dev, dt_control_log(), dt_dev_pixelpipe_has_preview_output(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_iop_levels_compute_levels_automatic(), g, dt_dev_pixelpipe_iop_t::global_hash, dt_iop_module_t::gui_data, LEVELS_MODE_AUTOMATIC, and dt_dev_pixelpipe_iop_t::roi_out.

Referenced by process().

compute_lut()

static void compute_lut ( const dt_dev_pixelpipe_iop_t *  piece )

static

References d, dt_dev_pixelpipe_iop_t::data, delta, and i.

Referenced by commit_params(), and commit_params_late().

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_LAB.

default_group()

int default_group

(

)

References IOP_GROUP_TONES.

description()

const char ** description

(

struct dt_iop_module_t *

self

)

References dt_iop_set_description().

dt_iop_levels_area_draw()

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

static

References c, dt_cairo_image_surface_create(), dt_draw_histogram_8(), dt_draw_vertical_lines(), DT_GUI_CURVE_EDITOR_INSET, DT_PIXEL_APPLY_DPI, dt_iop_module_t::enabled, FALSE, dt_iop_module_t::gui_data, height, dt_iop_module_t::histogram, dt_iop_module_t::histogram_max, p, dt_iop_module_t::params, TRUE, and width.

Referenced by gui_init().

dt_iop_levels_autoadjust_callback()

static void dt_iop_levels_autoadjust_callback ( GtkRange *  range, dt_iop_module_t *  self  )

static

References c, darktable, darktable_t::develop, dt_dev_add_history_item, dt_iop_color_picker_reset(), dt_iop_levels_compute_levels_manual(), FALSE, darktable_t::gui, dt_iop_module_t::gui_data, dt_iop_module_t::histogram, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, and TRUE.

Referenced by gui_init().

dt_iop_levels_button_press()

static gboolean dt_iop_levels_button_press ( GtkWidget *  widget, GdkEventButton *  event, gpointer  user_data  )

static

References c, darktable, dt_iop_module_t::default_params, dt_iop_module_t::dev, darktable_t::develop, dt_dev_add_history_item, dt_iop_request_focus(), FALSE, dt_iop_module_t::gui_data, dt_develop_t::gui_module, dt_iop_module_t::params, dt_iop_module_t::params_size, TRUE, and dt_iop_module_t::widget.

Referenced by gui_init().

dt_iop_levels_button_release()

static gboolean dt_iop_levels_button_release ( GtkWidget *  widget, GdkEventButton *  event, gpointer  user_data  )

static

References c, FALSE, dt_iop_module_t::gui_data, and TRUE.

Referenced by gui_init().

dt_iop_levels_compute_levels_automatic()

static void dt_iop_levels_compute_levels_automatic ( dt_iop_module_t *  self, const dt_dev_pixelpipe_iop_t *  piece  )

static

References dt_dev_histogram_stats_t::bins_count, d, dt_dev_pixelpipe_iop_t::data, dt_alloc_align(), dt_free_align, dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_iop_module_t::histogram, dt_iop_module_t::histogram_stats, i, n, and dt_dev_histogram_stats_t::pixels.

Referenced by commit_params_late().

dt_iop_levels_compute_levels_manual()

static void dt_iop_levels_compute_levels_manual ( const uint32_t *  histogram, float *  levels  )

static

References levels().

Referenced by dt_iop_levels_autoadjust_callback().

dt_iop_levels_leave_notify()

static gboolean dt_iop_levels_leave_notify ( GtkWidget *  widget, GdkEventCrossing *  event, gpointer  user_data  )

static

References c, dt_iop_module_t::gui_data, and TRUE.

Referenced by gui_init().

dt_iop_levels_motion_notify()

static gboolean dt_iop_levels_motion_notify ( GtkWidget *  widget, GdkEventMotion *  event, gpointer  user_data  )

static

References c, darktable, darktable_t::develop, dist(), dt_dev_add_history_item, DT_GUI_CURVE_EDITOR_INSET, dt_iop_levels_move_handle(), dt_iop_module_t::gui_data, height, p, dt_iop_module_t::params, TRUE, and width.

Referenced by gui_init().

dt_iop_levels_move_handle()

static void dt_iop_levels_move_handle ( dt_iop_module_t *  self, int  handle_move, float  new_pos, float *  levels, float  drag_start_percentage  )

static

Move handler_move to new_pos, storing the value in handles, while keeping new_pos within a valid range and preserving the ratio between the three handles.

Parameters

self	Pointer to this module to be able to access gui_data
handle_move	Handle to move
new_pow	New position (0..1)
levels	Pointer to dt_iop_levels_params->levels.
drag_start_percentage	Ratio between handle 1, 2 and 3.

Returns

TRUE if the marker were given a new position. FALSE otherwise.

References c, FALSE, dt_iop_module_t::gui_data, and levels().

Referenced by dt_iop_levels_motion_notify(), and dt_iop_levels_scroll().

dt_iop_levels_scroll()

static gboolean dt_iop_levels_scroll ( GtkWidget *  widget, GdkEventScroll *  event, gpointer  user_data  )

static

References c, darktable, dt_iop_module_t::dev, darktable_t::develop, dt_conf_get_int(), dt_conf_set_int(), dt_dev_add_history_item, dt_gui_get_scroll_unit_deltas(), dt_iop_color_picker_reset(), dt_iop_levels_move_handle(), dt_iop_request_focus(), dt_modifier_is(), dtgtk_drawing_area_set_aspect_ratio(), FALSE, dt_iop_module_t::gui_data, dt_develop_t::gui_module, p, dt_iop_module_t::params, and TRUE.

Referenced by gui_init().

flags()

int flags

(

)

References IOP_FLAGS_DEPRECATED, and IOP_FLAGS_SUPPORTS_BLENDING.

gui_changed()

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

References g, dt_iop_module_t::gui_data, LEVELS_MODE_AUTOMATIC, p, and dt_iop_module_t::params.

Referenced by gui_update().

gui_cleanup()

void gui_cleanup

(

dt_iop_module_t *

self

)

References g, dt_iop_module_t::gui_data, and IOP_GUI_FREE.

gui_init()

void gui_init

(

dt_iop_module_t *

self

)

References c, darktable, dt_bauhaus_combobox_from_params(), dt_bauhaus_slider_from_params(), dt_bauhaus_slider_set_format(), dt_color_picker_new(), DT_COLOR_PICKER_POINT, dt_conf_get_int(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_iop_levels_area_draw(), dt_iop_levels_autoadjust_callback(), dt_iop_levels_button_press(), dt_iop_levels_button_release(), dt_iop_levels_leave_notify(), dt_iop_levels_motion_notify(), dt_iop_levels_scroll(), dtgtk_drawing_area_new_with_aspect_ratio(), FALSE, darktable_t::gui, IOP_GUI_ALLOC, levels(), dt_gui_gtk_t::scroll_mask, TRUE, and dt_iop_module_t::widget.

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_bauhaus_combobox_set(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), g, gui_changed(), dt_iop_module_t::gui_data, p, dt_iop_module_t::params, and dt_iop_module_t::widget.

init()

void init

(

dt_iop_module_t *

module

)

References d, dt_iop_default_init(), and dt_iop_levels_params_t::levels.

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().

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
	)

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

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, levels(), and n.

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
	)

References commit_params_late(), d, dt_dev_pixelpipe_iop_t::data, denom, DT_DEV_PIXELPIPE_DISPLAY_MASK, dt_iop_alpha_copy(), dt_iop_roi_t::height, i, levels(), LEVELS_MODE_AUTOMATIC, dt_dev_pixelpipe_t::mask_display, out, dt_dev_pixelpipe_iop_t::roi_out, void(), and dt_iop_roi_t::width.