grain.c File Reference

#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "bauhaus/bauhaus.h"
#include "common/math.h"
#include "control/control.h"
#include "develop/develop.h"
#include "develop/imageop.h"
#include "develop/imageop_gui.h"
#include "gui/gtk.h"
#include "iop/iop_api.h"
#include <gtk/gtk.h>
#include <inttypes.h>

Include dependency graph for grain.c:

Data Structures
struct	dt_iop_grain_params_t
struct	dt_iop_grain_gui_data_t
struct	dt_iop_grain_data_t

Macros
#define	GRAIN_LIGHTNESS_STRENGTH_SCALE   0.15
#define	GRAIN_HUE_COLORRANGE   0.392699082
#define	GRAIN_HUE_STRENGTH_SCALE   0.25
#define	GRAIN_SATURATION_STRENGTH_SCALE   0.25
#define	GRAIN_RGB_STRENGTH_SCALE   0.25
#define	GRAIN_SCALE_FACTOR   213.2
#define	GRAIN_LUT_SIZE   128
#define	GRAIN_LUT_DELTA_MAX   2.0
#define	GRAIN_LUT_DELTA_MIN   0.0001
#define	GRAIN_LUT_PAPER_GAMMA   1.0
#define	FASTFLOOR(x)   (x > 0 ? (int)(x) : (int)(x)-1)
#define	PRIME_LEVELS   4

Typedefs
typedef enum _dt_iop_grain_channel_t	_dt_iop_grain_channel_t
typedef struct dt_iop_grain_params_t	dt_iop_grain_params_t
typedef struct dt_iop_grain_gui_data_t	dt_iop_grain_gui_data_t
typedef struct dt_iop_grain_data_t	dt_iop_grain_data_t

Enumerations
enum	_dt_iop_grain_channel_t {   DT_GRAIN_CHANNEL_HUE = 0 ,   DT_GRAIN_CHANNEL_SATURATION ,   DT_GRAIN_CHANNEL_LIGHTNESS ,   DT_GRAIN_CHANNEL_RGB }

Functions
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	_simplex_noise_init ()
static double	dot (int g[], double x, double y, double z)
static double	_simplex_noise (double xin, double yin, double zin)
static double	_simplex_2d_noise (double x, double y, uint32_t octaves, double persistance, double z)
static float	paper_resp (float exposure, float mb, float gp)
static float	paper_resp_inverse (float density, float mb, float gp)
static void	evaluate_grain_lut (float *grain_lut, const float mb)
static float	dt_lut_lookup_2d_1c (const float *grain_lut, const float x, const float y)
const char *	name ()
const char **	description (struct dt_iop_module_t *self)
int	flags ()
int	default_group ()
int	default_colorspace (dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
static unsigned int	_hash_string (char *s)
void	process (struct dt_iop_module_t *self, dt_dev_pixelpipe_iop_t *piece, const void *const ivoid, void *const ovoid, const dt_iop_roi_t *const roi_in, const dt_iop_roi_t *const roi_out)
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)
void	init_global (struct dt_iop_module_so_t *self)
void	gui_init (struct dt_iop_module_t *self)

Variables
static int	grad3 [12][3]
static int	permutation []
static int	perm [512]

Macro Definition Documentation

FASTFLOOR

#define FASTFLOOR

(

x

)

(x > 0 ? (int)(x) : (int)(x)-1)

GRAIN_HUE_COLORRANGE

#define GRAIN_HUE_COLORRANGE   0.392699082

GRAIN_HUE_STRENGTH_SCALE

#define GRAIN_HUE_STRENGTH_SCALE   0.25

GRAIN_LIGHTNESS_STRENGTH_SCALE

#define GRAIN_LIGHTNESS_STRENGTH_SCALE   0.15

GRAIN_LUT_DELTA_MAX

#define GRAIN_LUT_DELTA_MAX   2.0

GRAIN_LUT_DELTA_MIN

#define GRAIN_LUT_DELTA_MIN   0.0001

GRAIN_LUT_PAPER_GAMMA

#define GRAIN_LUT_PAPER_GAMMA   1.0

GRAIN_LUT_SIZE

#define GRAIN_LUT_SIZE   128

GRAIN_RGB_STRENGTH_SCALE

#define GRAIN_RGB_STRENGTH_SCALE   0.25

GRAIN_SATURATION_STRENGTH_SCALE

#define GRAIN_SATURATION_STRENGTH_SCALE   0.25

GRAIN_SCALE_FACTOR

#define GRAIN_SCALE_FACTOR   213.2

PRIME_LEVELS

#define PRIME_LEVELS   4

Typedef Documentation

_dt_iop_grain_channel_t

typedef enum _dt_iop_grain_channel_t _dt_iop_grain_channel_t

dt_iop_grain_data_t

typedef struct dt_iop_grain_data_t dt_iop_grain_data_t

dt_iop_grain_gui_data_t

typedef struct dt_iop_grain_gui_data_t dt_iop_grain_gui_data_t

dt_iop_grain_params_t

typedef struct dt_iop_grain_params_t dt_iop_grain_params_t

Enumeration Type Documentation

_dt_iop_grain_channel_t

enum _dt_iop_grain_channel_t

Enumerator
DT_GRAIN_CHANNEL_HUE
DT_GRAIN_CHANNEL_SATURATION
DT_GRAIN_CHANNEL_LIGHTNESS
DT_GRAIN_CHANNEL_RGB

Function Documentation

_hash_string()

static unsigned int _hash_string ( char *  s )

static

Referenced by process().

_simplex_2d_noise()

static double _simplex_2d_noise ( double  x, double  y, uint32_t  octaves, double  persistance, double  z  )

static

References _simplex_noise(), and f().

Referenced by process().

_simplex_noise()

static double _simplex_noise ( double  xin, double  yin, double  zin  )

static

References dot(), FASTFLOOR, grad3, and perm.

Referenced by _simplex_2d_noise().

_simplex_noise_init()

static void _simplex_noise_init ( )

static

References perm, and permutation.

Referenced by init_global().

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.

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 dt_iop_grain_data_t::channel, dt_dev_pixelpipe_iop_t::data, evaluate_grain_lut(), dt_iop_grain_data_t::grain_lut, dt_iop_grain_data_t::midtones_bias, dt_iop_grain_data_t::scale, and dt_iop_grain_data_t::strength.

default_colorspace()

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

References IOP_CS_LAB.

default_group()

int default_group

(

)

References IOP_GROUP_EFFECTS.

description()

const char ** description

(

struct dt_iop_module_t *

self

)

References dt_iop_set_description().

dot()

static double dot ( int  g[], double  x, double  y, double  z  )

static

Referenced by _get_base_value(), _simplex_noise(), dn_weight(), dt_camera_rgb_luminance(), JzAzBz_2_XYZ(), matrix_dot(), store(), thinplate_match(), and XYZ_to_JzAzBz().

dt_lut_lookup_2d_1c()

static float dt_lut_lookup_2d_1c ( const float *  grain_lut, const float  x, const float  y  )

static

References CLAMPS, and GRAIN_LUT_SIZE.

Referenced by process().

evaluate_grain_lut()

static void evaluate_grain_lut ( float *  grain_lut, const float  mb  )

static

References GRAIN_LUT_PAPER_GAMMA, GRAIN_LUT_SIZE, paper_resp(), and paper_resp_inverse().

Referenced by commit_params().

flags()

int flags

(

)

References IOP_FLAGS_INCLUDE_IN_STYLES, and IOP_FLAGS_SUPPORTS_BLENDING.

gui_init()

void gui_init

(

struct dt_iop_module_t *

self

)

References dt_bauhaus_slider_from_params(), dt_bauhaus_slider_set_digits(), dt_bauhaus_slider_set_factor(), dt_bauhaus_slider_set_format(), GRAIN_SCALE_FACTOR, and IOP_GUI_ALLOC.

init_global()

void init_global

(

struct dt_iop_module_so_t *

self

)

References _simplex_noise_init().

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.

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_grain_params_t::channel, dt_iop_grain_params_t::midtones_bias, dt_iop_grain_params_t::scale, dt_iop_grain_params_t::strength, and strength().

name()

const char * name

(

)

paper_resp()

static float paper_resp ( float  exposure, float  mb, float  gp  )

static

References GRAIN_LUT_DELTA_MAX, and GRAIN_LUT_DELTA_MIN.

Referenced by evaluate_grain_lut().

paper_resp_inverse()

static float paper_resp_inverse ( float  density, float  mb, float  gp  )

static

References GRAIN_LUT_DELTA_MAX, and GRAIN_LUT_DELTA_MIN.

Referenced by evaluate_grain_lut().

process()

void process	(	struct dt_iop_module_t *	self,
		dt_dev_pixelpipe_iop_t *	piece,
		const void *const	ivoid,
		void *const	ovoid,
		const dt_iop_roi_t *const	roi_in,
		const dt_iop_roi_t *const	roi_out
	)

References _hash_string(), _simplex_2d_noise(), dt_dev_pixelpipe_iop_t::buf_in, dt_dev_pixelpipe_iop_t::colors, dt_dev_pixelpipe_iop_t::data, dt_lut_lookup_2d_1c(), GRAIN_LIGHTNESS_STRENGTH_SCALE, dt_iop_grain_data_t::grain_lut, dt_iop_roi_t::height, dt_dev_pixelpipe_iop_t::pipe, dt_iop_roi_t::scale, dt_iop_grain_data_t::scale, strength(), dt_iop_grain_data_t::strength, dt_iop_roi_t::width, dt_iop_roi_t::x, and dt_iop_roi_t::y.

Variable Documentation

grad3

int grad3[12][3]

static

Initial value:

= { { 1, 1, 0 },
                            { -1, 1, 0 },
                            { 1, -1, 0 },
                            { -1, -1, 0 },
                            { 1, 0, 1 },
                            { -1, 0, 1 },
                            { 1, 0, -1 },
                            { -1, 0, -1 },
                            { 0, 1, 1 },
                            { 0, -1, 1 },
                            { 0, 1, -1 },
                            { 0, -1, -1 } }

Referenced by _simplex_noise().

perm

int perm[512]

static

Referenced by _simplex_noise(), _simplex_noise_init(), process_data(), and ransac().

permutation

int permutation[]

static

Initial value:

= { 151, 160, 137, 91,  90,  15,  131, 13,  201, 95,  96,  53,  194, 233, 7,   225, 140, 36,  103, 30,
        69,  142, 8,   99,  37,  240, 21,  10,  23,  190, 6,   148, 247, 120, 234, 75,  0,   26,  197, 62,
        94,  252, 219, 203, 117, 35,  11,  32,  57,  177, 33,  88,  237, 149, 56,  87,  174, 20,  125, 136,
        171, 168, 68,  175, 74,  165, 71,  134, 139, 48,  27,  166, 77,  146, 158, 231, 83,  111, 229, 122,
        60,  211, 133, 230, 220, 105, 92,  41,  55,  46,  245, 40,  244, 102, 143, 54,  65,  25,  63,  161,
        1,   216, 80,  73,  209, 76,  132, 187, 208, 89,  18,  169, 200, 196, 135, 130, 116, 188, 159, 86,
        164, 100, 109, 198, 173, 186, 3,   64,  52,  217, 226, 250, 124, 123, 5,   202, 38,  147, 118, 126,
        255, 82,  85,  212, 207, 206, 59,  227, 47,  16,  58,  17,  182, 189, 28,  42,  223, 183, 170, 213,
        119, 248, 152, 2,   44,  154, 163, 70,  221, 153, 101, 155, 167, 43,  172, 9,   129, 22,  39,  253,
        19,  98,  108, 110, 79,  113, 224, 232, 178, 185, 112, 104, 218, 246, 97,  228, 251, 34,  242, 193,
        238, 210, 144, 12,  191, 179, 162, 241, 81,  51,  145, 235, 249, 14,  239, 107, 49,  192, 214, 31,
        181, 199, 106, 157, 184, 84,  204, 176, 115, 121, 50,  45,  127, 4,   150, 254, 138, 236, 205, 93,
        222, 114, 67,  29,  24,  72,  243, 141, 128, 195, 78,  66,  215, 61,  156, 180 }

Referenced by _simplex_noise_init(), encode_colorchecker(), and thinplate_match().