exposure.c File Reference

#include <assert.h>
#include <math.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "bauhaus/bauhaus.h"
#include "common/histogram.h"
#include "common/image_cache.h"
#include "common/mipmap_cache.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/pixelpipe.h"
#include "dtgtk/paint.h"
#include "dtgtk/resetlabel.h"
#include "gui/gtk.h"
#include "gui/presets.h"
#include "gui/color_picker_proxy.h"
#include "iop/iop_api.h"

Include dependency graph for exposure.c:

Data Structures
struct	dt_iop_exposure_params_t
struct	dt_iop_exposure_gui_data_t
struct	dt_iop_exposure_data_t
struct	dt_iop_exposure_global_data_t

Macros
#define	exposure2white(x)   exp2f(-(x))
#define	white2exposure(x)   -dt_log2f(fmaxf(1e-20f, x))
#define	DEFLICKER_BINS_COUNT   (UINT16_MAX + 1)

Typedefs
typedef enum dt_iop_exposure_mode_t	dt_iop_exposure_mode_t
typedef enum dt_spot_mode_t	dt_spot_mode_t
typedef struct dt_iop_exposure_params_t	dt_iop_exposure_params_t
typedef struct dt_iop_exposure_gui_data_t	dt_iop_exposure_gui_data_t
typedef struct dt_iop_exposure_data_t	dt_iop_exposure_data_t
typedef struct dt_iop_exposure_global_data_t	dt_iop_exposure_global_data_t

Enumerations
enum	dt_iop_exposure_mode_t {   EXPOSURE_MODE_MANUAL ,   EXPOSURE_MODE_DEFLICKER }
enum	dt_spot_mode_t {   DT_SPOT_MODE_CORRECT = 0 ,   DT_SPOT_MODE_MEASURE = 1 ,   DT_SPOT_MODE_LAST }

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, dt_dev_pixelpipe_iop_t *piece)
static float	_exposure_proxy_get_exposure (struct dt_iop_module_t *self)
static float	_exposure_proxy_get_black (struct dt_iop_module_t *self)
static void	_paint_hue (dt_iop_module_t *self)
static void	_exposure_set_black (struct dt_iop_module_t *self, const float black)
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 void	_deflicker_prepare_histogram (dt_iop_module_t *self, uint32_t **histogram, dt_dev_histogram_stats_t *histogram_stats)
static double	_raw_to_ev (uint32_t raw, uint32_t black_level, uint32_t white_level)
static void	_compute_correction (dt_iop_module_t *self, dt_iop_params_t *p1, dt_dev_pixelpipe_t *pipe, const uint32_t *const histogram, const dt_dev_histogram_stats_t *const histogram_stats, float *correction)
static void	_process_common_setup (dt_iop_module_t *self, dt_dev_pixelpipe_iop_t *piece)
void	process (struct dt_iop_module_t *self, dt_dev_pixelpipe_iop_t *piece, const void *const i, void *const o, const dt_iop_roi_t *const roi_in, const dt_iop_roi_t *const roi_out)
static float	_get_exposure_bias (const struct dt_iop_module_t *self)
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)
static void	_autoexp_disable (dt_iop_module_t *self)
void	gui_update (struct dt_iop_module_t *self)
void	init_global (dt_iop_module_so_t *module)
void	cleanup_global (dt_iop_module_so_t *module)
static void	_exposure_set_white (struct dt_iop_module_t *self, const float white)
static void	_auto_set_exposure (dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe)
void	color_picker_apply (dt_iop_module_t *self, GtkWidget *picker, dt_dev_pixelpipe_iop_t *piece)
void	gui_changed (dt_iop_module_t *self, GtkWidget *w, void *previous)
static gboolean	_draw (GtkWidget *widget, cairo_t *cr, dt_iop_module_t *self)
static gboolean	_target_color_draw (GtkWidget *widget, cairo_t *crf, gpointer user_data)
static gboolean	_origin_color_draw (GtkWidget *widget, cairo_t *crf, gpointer user_data)
static void	_spot_settings_changed_callback (GtkWidget *slider, dt_iop_module_t *self)
void	gui_reset (struct dt_iop_module_t *self)
void	gui_init (struct dt_iop_module_t *self)
void	gui_cleanup (struct dt_iop_module_t *self)

Macro Definition Documentation

DEFLICKER_BINS_COUNT

#define DEFLICKER_BINS_COUNT   (UINT16_MAX + 1)

exposure2white

#define exposure2white

(

x

)

exp2f(-(x))

white2exposure

#define white2exposure

(

x

)

-dt_log2f(fmaxf(1e-20f, x))

Typedef Documentation

dt_iop_exposure_data_t

typedef struct dt_iop_exposure_data_t dt_iop_exposure_data_t

dt_iop_exposure_global_data_t

typedef struct dt_iop_exposure_global_data_t dt_iop_exposure_global_data_t

dt_iop_exposure_gui_data_t

typedef struct dt_iop_exposure_gui_data_t dt_iop_exposure_gui_data_t

dt_iop_exposure_mode_t

typedef enum dt_iop_exposure_mode_t dt_iop_exposure_mode_t

dt_iop_exposure_params_t

typedef struct dt_iop_exposure_params_t dt_iop_exposure_params_t

dt_spot_mode_t

typedef enum dt_spot_mode_t dt_spot_mode_t

Enumeration Type Documentation

dt_iop_exposure_mode_t

enum dt_iop_exposure_mode_t

Enumerator
EXPOSURE_MODE_MANUAL
EXPOSURE_MODE_DEFLICKER

dt_spot_mode_t

enum dt_spot_mode_t

Enumerator
DT_SPOT_MODE_CORRECT
DT_SPOT_MODE_MEASURE
DT_SPOT_MODE_LAST

Function Documentation

_auto_set_exposure()

static void _auto_set_exposure ( dt_iop_module_t *  self, dt_dev_pixelpipe_t *  pipe  )

static

References _exposure_set_white(), _get_exposure_bias(), _paint_hue(), darktable, dot_product(), dt_bauhaus_combobox_get(), dt_bauhaus_slider_get(), dt_bauhaus_slider_set(), dt_conf_set_float(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_ioppr_get_pipe_input_profile_info(), dt_Lab_2_LCH(), dt_Lab_to_XYZ(), dt_LCH_2_Lab(), DT_SPOT_MODE_CORRECT, DT_SPOT_MODE_MEASURE, dt_XYZ_to_Lab(), dt_XYZ_to_sRGB(), exposure2white, darktable_t::gui, dt_iop_module_t::gui_data, Lab(), dt_iop_order_iccprofile_info_t::matrix_in, 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 white2exposure.

Referenced by _spot_settings_changed_callback(), and color_picker_apply().

_autoexp_disable()

static void _autoexp_disable ( dt_iop_module_t *  self )

static

References dt_iop_color_picker_reset(), and TRUE.

Referenced by gui_changed(), and gui_update().

_compute_correction()

static void _compute_correction ( dt_iop_module_t *  self, dt_iop_params_t *  p1, dt_dev_pixelpipe_t *  pipe, const uint32_t *const  histogram, const dt_dev_histogram_stats_t *const  histogram_stats, float *  correction  )

static

References _raw_to_ev(), dt_dev_histogram_stats_t::bins_count, dt_dev_histogram_stats_t::ch, dt_dev_pixelpipe_t::dsc, dt_dev_histogram_stats_t::pixels, dt_iop_buffer_dsc_t::raw_black_level, dt_iop_buffer_dsc_t::raw_white_point, and dt_iop_buffer_dsc_t::rawprepare.

Referenced by _process_common_setup().

_deflicker_prepare_histogram()

static void _deflicker_prepare_histogram ( dt_iop_module_t *  self, uint32_t **  histogram, dt_dev_histogram_stats_t *  histogram_stats  )

static

Todo:

: get those from rawprepare IOP somehow !!!

References dt_dev_histogram_collection_params_t::bins_count, dt_mipmap_buffer_t::buf, dt_image_t::buf_dsc, dt_dev_histogram_stats_t::ch, dt_iop_buffer_dsc_t::channels, dt_image_t::crop_height, dt_image_t::crop_width, dt_image_t::crop_x, dt_image_t::crop_y, darktable, dt_iop_buffer_dsc_t::datatype, DEFLICKER_BINS_COUNT, dt_iop_module_t::dev, dt_control_log(), dt_histogram_helper_cs_RAW_uint16(), dt_histogram_worker(), dt_image_cache_get(), dt_image_cache_read_release(), DT_MIPMAP_BLOCKING, dt_mipmap_cache_get, dt_mipmap_cache_release, DT_MIPMAP_FULL, dt_image_t::filename, dt_image_t::height, dt_image_t::id, darktable_t::image_cache, dt_develop_t::image_storage, darktable_t::mipmap_cache, dt_dev_histogram_collection_params_t::roi, TYPE_UINT16, dt_histogram_roi_t::width, and dt_image_t::width.

Referenced by _process_common_setup(), gui_changed(), and gui_update().

_draw()

static gboolean _draw ( GtkWidget *  widget, cairo_t *  cr, dt_iop_module_t *  self  )

static

References darktable, dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), FALSE, darktable_t::gui, dt_iop_module_t::gui_data, and dt_gui_gtk_t::reset.

Referenced by gui_init().

_exposure_proxy_get_black()

static float _exposure_proxy_get_black ( struct dt_iop_module_t *  self )

static

References dt_iop_module_t::params.

Referenced by gui_init().

_exposure_proxy_get_exposure()

static float _exposure_proxy_get_exposure ( struct dt_iop_module_t *  self )

static

References EXPOSURE_MODE_DEFLICKER, and dt_iop_module_t::params.

Referenced by gui_init().

_exposure_set_black()

static void _exposure_set_black ( struct dt_iop_module_t *  self, const float  black  )

static

References _exposure_set_white(), darktable, darktable_t::develop, dt_bauhaus_slider_set(), dt_dev_add_history_item, exposure2white, darktable_t::gui, dt_iop_module_t::gui_data, dt_iop_module_t::params, dt_gui_gtk_t::reset, and TRUE.

Referenced by _exposure_set_white(), and gui_changed().

_exposure_set_white()

static void _exposure_set_white ( struct dt_iop_module_t *  self, const float  white  )

static

References _exposure_set_black(), darktable, darktable_t::develop, dt_bauhaus_slider_set(), dt_dev_add_history_item, darktable_t::gui, dt_iop_module_t::gui_data, dt_iop_module_t::params, dt_gui_gtk_t::reset, TRUE, and white2exposure.

Referenced by _auto_set_exposure(), _exposure_set_black(), and gui_changed().

_get_exposure_bias()

static float _get_exposure_bias ( const struct dt_iop_module_t *  self )

static

References dt_iop_module_t::dev, dt_image_t::exif_exposure_bias, and dt_develop_t::image_storage.

Referenced by _auto_set_exposure(), commit_params(), and gui_update().

_origin_color_draw()

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

static

References dt_cairo_image_surface_create(), DT_PIXEL_APPLY_DPI, dt_iop_module_t::gui_data, height, INNER_PADDING, INTERNAL_PADDING, TRUE, and width.

Referenced by gui_init().

_paint_hue()

static void _paint_hue ( dt_iop_module_t *  self )

static

References dt_bauhaus_slider_get_hard_max(), dt_bauhaus_slider_get_hard_min(), DT_BAUHAUS_SLIDER_MAX_STOPS, dt_bauhaus_slider_set_stop(), dt_Lab_to_XYZ(), dt_LCH_2_Lab(), dt_XYZ_to_sRGB(), dt_iop_module_t::gui_data, and Lab().

Referenced by _auto_set_exposure(), and _spot_settings_changed_callback().

_process_common_setup()

static void _process_common_setup ( dt_iop_module_t *  self, dt_dev_pixelpipe_iop_t *  piece  )

static

References _compute_correction(), _deflicker_prepare_histogram(), dt_iop_exposure_params_t::black, dt_iop_exposure_data_t::black, dt_dev_pixelpipe_iop_t::data, dt_iop_exposure_data_t::deflicker, DT_DEV_PIXELPIPE_PREVIEW, dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_iop_exposure_params_t::exposure, exposure2white, dt_iop_module_t::gui_data, dt_iop_exposure_data_t::params, dt_dev_pixelpipe_iop_t::pipe, and dt_iop_exposure_data_t::scale.

Referenced by process().

_raw_to_ev()

static double _raw_to_ev ( uint32_t  raw, uint32_t  black_level, uint32_t  white_level  )

static

References MAX.

Referenced by _compute_correction().

_spot_settings_changed_callback()

static void _spot_settings_changed_callback ( GtkWidget *  slider, dt_iop_module_t *  self  )

static

References _auto_set_exposure(), _paint_hue(), darktable, darktable_t::develop, dt_bauhaus_combobox_get(), dt_bauhaus_slider_get(), dt_conf_set_float(), DT_SPOT_MODE_CORRECT, darktable_t::gui, dt_iop_module_t::gui_data, dt_develop_t::pipe, and dt_gui_gtk_t::reset.

Referenced by gui_init().

_target_color_draw()

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

static

References dt_bauhaus_slider_get(), dt_cairo_image_surface_create(), dt_Lab_to_XYZ(), dt_LCH_2_Lab(), DT_PIXEL_APPLY_DPI, dt_XYZ_to_sRGB(), dt_iop_module_t::gui_data, height, INNER_PADDING, INTERNAL_PADDING, Lab(), TRUE, and width.

Referenced by gui_init().

cleanup_global()

void cleanup_global

(

dt_iop_module_so_t *

module

)

References dt_iop_module_so_t::data, dt_opencl_free_kernel(), and dt_iop_exposure_global_data_t::kernel_exposure.

cleanup_pipe()

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

References dt_dev_pixelpipe_iop_t::data.

color_picker_apply()

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

References _auto_set_exposure(), darktable, darktable_t::gui, dt_dev_pixelpipe_iop_t::pipe, and dt_gui_gtk_t::reset.

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 _get_exposure_bias(), dt_iop_exposure_params_t::black, dt_image_t::buf_dsc, dt_iop_buffer_dsc_t::channels, dt_dev_pixelpipe_iop_t::data, dt_iop_buffer_dsc_t::datatype, dt_iop_exposure_data_t::deflicker, dt_iop_exposure_params_t::deflicker_percentile, dt_iop_exposure_params_t::deflicker_target_level, dt_iop_module_t::dev, dt_image_is_raw(), dt_iop_exposure_params_t::exposure, EXPOSURE_MODE_DEFLICKER, dt_develop_t::image_storage, dt_iop_exposure_data_t::params, and TYPE_UINT16.

default_colorspace()

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

References IOP_CS_RGB.

default_group()

int default_group

(

)

References IOP_GROUP_TONES.

description()

const char ** description

(

struct dt_iop_module_t *

self

)

References dt_iop_set_description().

flags()

int flags

(

)

References IOP_FLAGS_ALLOW_TILING, and IOP_FLAGS_SUPPORTS_BLENDING.

gui_changed()

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

References _autoexp_disable(), _deflicker_prepare_histogram(), _exposure_set_black(), _exposure_set_white(), dt_image_t::buf_dsc, dt_iop_buffer_dsc_t::channels, dt_iop_buffer_dsc_t::datatype, dt_iop_module_t::dev, dt_bauhaus_combobox_set(), dt_image_is_raw(), exposure2white, EXPOSURE_MODE_DEFLICKER, EXPOSURE_MODE_MANUAL, FALSE, dt_iop_module_t::gui_data, dt_develop_t::image_storage, dt_iop_module_t::params, and TYPE_UINT16.

gui_cleanup()

void gui_cleanup

(

struct dt_iop_module_t *

self

)

References darktable, darktable_t::develop, dt_develop_t::exposure, dt_iop_module_t::gui_data, IOP_GUI_FREE, and dt_develop_t::proxy.

gui_init()

void gui_init

(

struct dt_iop_module_t *

self

)

References _draw(), _exposure_proxy_get_black(), _exposure_proxy_get_exposure(), _origin_color_draw(), _spot_settings_changed_callback(), _target_color_draw(), darktable_t::bauhaus, darktable, darktable_t::develop, dt_bauhaus_combobox_from_params(), DT_BAUHAUS_COMBOBOX_NEW_FULL, dt_bauhaus_slider_from_params(), dt_bauhaus_slider_new_with_range(), dt_bauhaus_slider_set_default(), dt_bauhaus_slider_set_digits(), dt_bauhaus_slider_set_format(), dt_bauhaus_slider_set_soft_range(), DT_BAUHAUS_SPACE, dt_bauhaus_toggle_from_params(), dt_bauhaus_widget_set_label(), DT_COLOR_PICKER_AREA, dt_color_picker_new(), DT_GUI_MODULE, dt_gui_new_collapsible_section(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), DT_PIXEL_APPLY_DPI, dt_ui_label_new(), dt_ui_section_label_new(), dt_develop_t::exposure, FALSE, dt_dev_proxy_exposure_t::get_black, dt_dev_proxy_exposure_t::get_exposure, IOP_GUI_ALLOC, dt_develop_t::proxy, dt_bauhaus_t::quad_width, TRUE, and dt_iop_module_t::widget.

gui_reset()

void gui_reset

(

struct dt_iop_module_t *

self

)

References dt_iop_color_picker_reset(), and TRUE.

gui_update()

void gui_update

(

struct dt_iop_module_t *

self

)

References _autoexp_disable(), _deflicker_prepare_histogram(), _get_exposure_bias(), dt_image_t::buf_dsc, dt_iop_buffer_dsc_t::channels, dt_iop_buffer_dsc_t::datatype, dt_iop_module_t::dev, dt_bauhaus_slider_set(), dt_conf_get_float(), dt_gui_update_collapsible_section(), dt_image_is_raw(), dt_iop_color_picker_reset(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), EXPOSURE_MODE_DEFLICKER, EXPOSURE_MODE_MANUAL, FALSE, dt_iop_module_t::gui_data, dt_develop_t::image_storage, dt_iop_module_t::params, TRUE, and TYPE_UINT16.

init_global()

void init_global

(

dt_iop_module_so_t *

module

)

References dt_opencl_create_kernel(), and dt_iop_exposure_global_data_t::kernel_exposure.

init_pipe()

void init_pipe	(	struct 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_dev_pixelpipe_iop_t::data_size.

init_presets()

void init_presets

(

dt_iop_module_so_t *

self

)

References DEVELOP_BLEND_CS_RGB_DISPLAY, DEVELOP_BLEND_CS_RGB_SCENE, dt_gui_presets_add_generic(), dt_gui_presets_update_ldr(), FOR_RAW, and dt_iop_module_so_t::op.

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 dt_iop_exposure_params_t::black, dt_iop_exposure_params_t::compensate_exposure_bias, dt_iop_module_t::default_params, dt_iop_exposure_params_t::deflicker_percentile, dt_iop_exposure_params_t::deflicker_target_level, dt_iop_exposure_params_t::exposure, EXPOSURE_MODE_DEFLICKER, EXPOSURE_MODE_MANUAL, FALSE, and dt_iop_exposure_params_t::mode.

name()

const char * name

(

)

process()

void process	(	struct dt_iop_module_t *	self,
		dt_dev_pixelpipe_iop_t *	piece,
		const void *const	i,
		void *const	o,
		const dt_iop_roi_t *const	roi_in,
		const dt_iop_roi_t *const	roi_out
	)

References _process_common_setup(), dt_iop_exposure_data_t::black, dt_dev_pixelpipe_iop_t::colors, dt_dev_pixelpipe_iop_t::data, DT_DEV_PIXELPIPE_DISPLAY_MASK, dt_iop_alpha_copy(), dt_iop_roi_t::height, dt_dev_pixelpipe_iop_t::pipe, dt_iop_exposure_data_t::scale, and dt_iop_roi_t::width.