Blender  V2.93
Classes | Macros | Functions
colorband.c File Reference
Blender » BlenKernel
#include "MEM_guardedalloc.h"
#include "BLI_heap.h"
#include "BLI_math.h"
#include "BLI_math_color.h"
#include "BLI_utildefines.h"
#include "DNA_key_types.h"
#include "DNA_texture_types.h"
#include "BKE_colorband.h"
#include "BKE_key.h"
#include "BKE_material.h"

Go to the source code of this file.

Classes

struct  ColorResampleElem
 

Macros

#define HUE_INTERP(h_a, h_b)   ((mfac * (h_a)) + (fac * (h_b)))
 
#define HUE_MOD(h)   (((h) < 1.0f) ? (h) : (h)-1.0f)
 

Functions

void BKE_colorband_init (ColorBand *coba, bool rangetype)
 
static void colorband_init_from_table_rgba_simple (ColorBand *coba, const float(*array)[4], const int array_len)
 
ColorBand * BKE_colorband_add (bool rangetype)
 
static float colorband_hue_interp (const int ipotype_hue, const float mfac, const float fac, float h1, float h2)
 
bool BKE_colorband_evaluate (const ColorBand *coba, float in, float out[4])
 
void BKE_colorband_evaluate_table_rgba (const ColorBand *coba, float **array, int *size)
 
static int vergcband (const void *a1, const void *a2)
 
void BKE_colorband_update_sort (ColorBand *coba)
 
CBData * BKE_colorband_element_add (struct ColorBand *coba, float position)
 
bool BKE_colorband_element_remove (struct ColorBand *coba, int index)
 
Color Ramp Re-Sample

Local functions for BKE_colorband_init_from_table_rgba

static float color_sample_remove_cost (const struct ColorResampleElem *c)
 
static float filter_gauss (float x)
 
static void colorband_init_from_table_rgba_resample (ColorBand *coba, const float(*array)[4], const int array_len, bool filter_samples)
 
void BKE_colorband_init_from_table_rgba (ColorBand *coba, const float(*array)[4], const int array_len, bool filter_samples)
 

Macro Definition Documentation

◆ HUE_INTERP

#define HUE_INTERP (   h_a,
  h_b 
)    ((mfac * (h_a)) + (fac * (h_b)))

◆ HUE_MOD

#define HUE_MOD (   h)    (((h) < 1.0f) ? (h) : (h)-1.0f)

Function Documentation

◆ BKE_colorband_add()

ColorBand* BKE_colorband_add ( bool  rangetype)

Definition at line 312 of file colorband.c.

References BKE_colorband_init(), and MEM_callocN.

Referenced by BKE_linestyle_color_modifier_add(), BKE_texture_pointdensity_init_data(), dynamicPaint_createType(), initData(), node_composit_init_valtorgb(), node_shader_init_valtorgb(), and valtorgb_init().

◆ BKE_colorband_element_add()

CBData* BKE_colorband_element_add ( struct ColorBand *  coba,
float  position 
)

Definition at line 618 of file colorband.c.

References BKE_colorband_evaluate(), BKE_colorband_update_sort(), ColorBand::cur, ColorBand::data, MAXCOLORBAND, NULL, CBData::pos, CBData::r, ColorBand::tot, and zero_v4().

Referenced by colorband_add_cb(), and ui_do_but_COLORBAND().

◆ BKE_colorband_element_remove()

bool BKE_colorband_element_remove ( struct ColorBand *  coba,
int  index 
)

Definition at line 644 of file colorband.c.

References Freestyle::a, ColorBand::cur, ColorBand::data, and ColorBand::tot.

Referenced by colorband_del_cb().

◆ BKE_colorband_evaluate()

bool BKE_colorband_evaluate ( const ColorBand *  coba,
float  in,
float  out[4] 
)

Definition at line 410 of file colorband.c.

References Freestyle::a, CBData::a, CBData::b, CLAMP, clamp_v4(), COLBAND_BLEND_HSL, COLBAND_BLEND_HSV, COLBAND_BLEND_RGB, COLBAND_INTERP_B_SPLINE, COLBAND_INTERP_CARDINAL, COLBAND_INTERP_CONSTANT, COLBAND_INTERP_EASE, COLBAND_INTERP_LINEAR, ColorBand::color_mode, colorband_hue_interp(), ColorBand::data, ELEM, CBData::g, hsl_to_rgb_v(), hsv_to_rgb_v(), if(), ColorBand::ipotype, ColorBand::ipotype_hue, KEY_BSPLINE, KEY_CARDINAL, key_curve_position_weights(), left, NULL, pos, CBData::pos, CBData::r, rgb_to_hsl_v(), rgb_to_hsv_v(), right, t, ColorBand::tot, and UNLIKELY.

Referenced by BKE_colorband_element_add(), and BKE_colorband_evaluate_table_rgba().

◆ BKE_colorband_evaluate_table_rgba()

void BKE_colorband_evaluate_table_rgba ( const ColorBand *  coba,
float **  array,
int *  size 
)

Definition at line 571 of file colorband.c.

References Freestyle::a, BKE_colorband_evaluate(), CM_TABLE, MEM_callocN, and size().

◆ BKE_colorband_init()

void BKE_colorband_init ( ColorBand *  coba,
bool  rangetype 
)

Definition at line 38 of file colorband.c.

References Freestyle::a, CBData::a, CBData::b, COLBAND_BLEND_RGB, COLBAND_INTERP_LINEAR, ColorBand::color_mode, ColorBand::cur, ColorBand::data, CBData::g, ColorBand::ipotype, MAXCOLORBAND, CBData::pos, CBData::r, and ColorBand::tot.

Referenced by BKE_blendfile_userdef_from_defaults(), BKE_colorband_add(), BKE_texture_colormapping_default(), blo_do_versions_userdef(), colorband_tools_dofunc(), blender::nodes::geo_node_attribute_color_ramp_init(), and initData().

◆ BKE_colorband_init_from_table_rgba()

void BKE_colorband_init_from_table_rgba ( ColorBand *  coba,
const float(*)  array[4],
const int  array_len,
bool  filter_samples 
)

Definition at line 293 of file colorband.c.

References colorband_init_from_table_rgba_resample(), and colorband_init_from_table_rgba_simple().

Referenced by eyedropper_colorband_apply().

◆ BKE_colorband_update_sort()

void BKE_colorband_update_sort ( ColorBand *  coba)

Definition at line 596 of file colorband.c.

References Freestyle::a, CBData::cur, ColorBand::cur, ColorBand::data, ColorBand::tot, and vergcband().

Referenced by BKE_colorband_element_add(), colorband_update_cb(), ui_do_but_COLORBAND(), and ui_numedit_but_COLORBAND().

◆ color_sample_remove_cost()

static float color_sample_remove_cost ( const struct ColorResampleElem *  c)
static

Measure the 'area' of each channel and combine to use as a cost for this samples removal.

Definition at line 133 of file colorband.c.

References blender::compositor::area(), Freestyle::c, cross_tri_v2(), fabsf, and NULL.

Referenced by colorband_init_from_table_rgba_resample().

◆ colorband_hue_interp()

static float colorband_hue_interp ( const int  ipotype_hue,
const float  mfac,
const float  fac,
float  h1,
float  h2 
)
static

Definition at line 324 of file colorband.c.

References BLI_assert, COLBAND_HUE_CCW, COLBAND_HUE_CW, COLBAND_HUE_FAR, COLBAND_HUE_NEAR, HUE_INTERP, and HUE_MOD.

Referenced by BKE_colorband_evaluate().

◆ colorband_init_from_table_rgba_resample()

static void colorband_init_from_table_rgba_resample ( ColorBand *  coba,
const float(*)  array[4],
const int  array_len,
bool  filter_samples 
)
static

Definition at line 172 of file colorband.c.

References BLI_assert, BLI_heap_free(), BLI_heap_insert(), BLI_heap_is_empty(), BLI_heap_new_ex(), BLI_heap_node_value_update(), BLI_heap_pop_min(), BLI_heap_remove(), BLI_heap_top_value(), Freestyle::c, color_sample_remove_cost(), copy_v4_v4(), CBData::cur, ColorBand::cur, ColorBand::data, filter_gauss(), float(), madd_v4_v4fl(), MAXCOLORBAND, MEM_freeN, MEM_mallocN, mul_v4_v4fl(), ColorResampleElem::next, ColorResampleElem::node, NULL, CBData::pos, ColorResampleElem::prev, CBData::r, ColorResampleElem::rgba, and ColorBand::tot.

Referenced by BKE_colorband_init_from_table_rgba().

◆ colorband_init_from_table_rgba_simple()

static void colorband_init_from_table_rgba_simple ( ColorBand *  coba,
const float(*)  array[4],
const int  array_len 
)
static

Definition at line 82 of file colorband.c.

References CBData::a, BLI_assert, compare_v4v4(), copy_v4_v4(), CBData::cur, ColorBand::cur, ColorBand::data, eps, float(), max_ii(), MAXCOLORBAND, min_ii(), CBData::pos, CBData::r, ColorBand::tot, and zero_v3().

Referenced by BKE_colorband_init_from_table_rgba().

◆ filter_gauss()

static float filter_gauss ( float  x)
static

Definition at line 164 of file colorband.c.

References expf, M_PI, sqrtf, and x.

Referenced by colorband_init_from_table_rgba_resample().

◆ vergcband()

static int vergcband ( const void *  a1,
const void *  a2 
)
static

Definition at line 583 of file colorband.c.

References CBData::pos, and x2.

Referenced by BKE_colorband_update_sort().

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