src/iop/colorzones.c
Rama master · réplica de lectura del repositorio original.
/*
This file is part of darktable,
Copyright (C) 2010-2026 darktable developers.
darktable is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
darktable is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with darktable. If not, see <http://www.gnu.org/licenses/>.
*/
#include "common/gdk_event_utils.h"
#include "bauhaus/bauhaus.h"
#include "common/iop_profile.h"
#include "common/colorspaces_inline_conversions.h"
#include "common/imagebuf.h"
#include "common/math.h"
#include "develop/imageop.h"
#include "develop/imageop_gui.h"
#include "dtgtk/drawingarea.h"
#include "gui/accelerators.h"
#include "gui/color_picker_proxy.h"
#include "gui/presets.h"
#include "libs/colorpicker.h"
DT_MODULE_INTROSPECTION(5, dt_iop_colorzones_params_t)
#define DT_IOP_COLORZONES_INSET DT_PIXEL_APPLY_DPI(5)
#define DT_IOP_COLORZONES_CURVE_INFL .3f
#define DT_IOP_COLORZONES_RES 256
#define DT_IOP_COLORZONES_LUT_RES 0x10000
#define DT_IOP_COLORZONES_BANDS 8
#define DT_IOP_COLORZONES_MAXNODES 20
#define DT_IOP_COLORZONES_DEFAULT_STEP (0.001f)
#define DT_IOP_COLORZONES_MIN_X_DISTANCE 0.0025f
typedef enum dt_iop_colorzones_modes_t
{
DT_IOP_COLORZONES_MODE_SMOOTH = 0, // $DESCRIPTION: "smooth"
DT_IOP_COLORZONES_MODE_STRONG = 1 // $DESCRIPTION: "strong"
} dt_iop_colorzones_modes_t;
typedef enum dt_iop_colorzones_splines_version_t
{
DT_IOP_COLORZONES_SPLINES_V1 = 0,
DT_IOP_COLORZONES_SPLINES_V2 = 1
} dt_iop_colorzones_splines_version_t;
typedef enum dt_iop_colorzones_channel_t
{
DT_IOP_COLORZONES_L = 0, // $DESCRIPTION: "lightness"
DT_IOP_COLORZONES_C = 1, // $DESCRIPTION: "chroma"
DT_IOP_COLORZONES_h = 2, // $DESCRIPTION: "hue"
DT_IOP_COLORZONES_MAX_CHANNELS = 3
} dt_iop_colorzones_channel_t;
typedef struct dt_iop_colorzones_node_t
{
float x;
float y;
} dt_iop_colorzones_node_t;
typedef struct dt_iop_colorzones_params_t
{
dt_iop_colorzones_channel_t channel; // $DEFAULT: DT_IOP_COLORZONES_h $DESCRIPTION: "select by"
// three curves (L, C, h) with max number of nodes
dt_iop_colorzones_node_t curve[DT_IOP_COLORZONES_MAX_CHANNELS][DT_IOP_COLORZONES_MAXNODES];
int curve_num_nodes[DT_IOP_COLORZONES_MAX_CHANNELS]; // number of nodes per curve
int curve_type[DT_IOP_COLORZONES_MAX_CHANNELS]; // CUBIC_SPLINE, CATMULL_ROM, MONOTONE_HERMITE
float strength; // $MIN: -200.0 $MAX: 200.0 $DEFAULT: 0.0 $DESCRIPTION: "mix"
dt_iop_colorzones_modes_t mode; // $MIN: 0 $MAX: 1 $DEFAULT: DT_IOP_COLORZONES_MODE_SMOOTH $DESCRIPTION: "process mode"
int splines_version;
} dt_iop_colorzones_params_t;
static inline int _colorzones_nodes(const dt_iop_colorzones_params_t *const p,
const int ch)
{
// stored counts index the fixed node arrays; legacy splines also read nodes - 2
const int min_nodes = p->splines_version == DT_IOP_COLORZONES_SPLINES_V1 ? 2 : 1;
return CLAMP(p->curve_num_nodes[ch], min_nodes, DT_IOP_COLORZONES_MAXNODES);
}
typedef struct dt_iop_colorzones_gui_data_t
{
dt_draw_curve_t *minmax_curve[DT_IOP_COLORZONES_MAX_CHANNELS]; // curve for gui to draw
int minmax_curve_nodes[DT_IOP_COLORZONES_MAX_CHANNELS];
int minmax_curve_type[DT_IOP_COLORZONES_MAX_CHANNELS];
GtkBox *hbox;
GtkDrawingArea *area;
GtkWidget *bottom_area;
GtkNotebook *channel_tabs;
GtkWidget *select_by;
GtkWidget *strength;
GtkWidget *interpolator; // curve type
GtkWidget *mode;
GtkWidget *bt_showmask;
double mouse_x, mouse_y;
float mouse_radius;
int selected;
int dragging;
int x_move;
GtkWidget *colorpicker;
GtkWidget *colorpicker_set_values;
GtkWidget *chk_edit_by_area;
dt_iop_colorzones_channel_t channel;
float draw_ys[DT_IOP_COLORZONES_MAX_CHANNELS][DT_IOP_COLORZONES_RES];
float draw_min_ys[DT_IOP_COLORZONES_RES];
float draw_max_ys[DT_IOP_COLORZONES_RES];
float zoom_factor;
float offset_x, offset_y;
int edit_by_area;
gboolean display_mask;
} dt_iop_colorzones_gui_data_t;
typedef struct dt_iop_colorzones_data_t
{
dt_draw_curve_t *curve[DT_IOP_COLORZONES_MAX_CHANNELS];
int curve_nodes[DT_IOP_COLORZONES_MAX_CHANNELS]; // number of nodes
int curve_type[DT_IOP_COLORZONES_MAX_CHANNELS]; // curve style (e.g. CUBIC_SPLINE)
dt_iop_colorzones_channel_t channel;
float lut[3][DT_IOP_COLORZONES_LUT_RES];
int mode;
} dt_iop_colorzones_data_t;
typedef struct dt_iop_colorzones_global_data_t
{
int kernel_colorzones;
int kernel_colorzones_v3;
} dt_iop_colorzones_global_data_t;
const char *name()
{
return _("color zones");
}
const char **description(dt_iop_module_t *self)
{
return dt_iop_set_description
(self, _("selectively shift hues, chroma and lightness of pixels"),
_("creative"),
_("linear or non-linear, Lab, display-referred"),
_("non-linear, Lab"),
_("non-linear, Lab, display-referred"));
}
int flags()
{
return IOP_FLAGS_INCLUDE_IN_STYLES | IOP_FLAGS_SUPPORTS_BLENDING | IOP_FLAGS_ALLOW_TILING;
}
int default_group()
{
return IOP_GROUP_COLOR | IOP_GROUP_GRADING;
}
dt_iop_colorspace_type_t default_colorspace(dt_iop_module_t *self,
dt_dev_pixelpipe_t *pipe,
dt_dev_pixelpipe_iop_t *piece)
{
return IOP_CS_LAB;
}
int legacy_params(dt_iop_module_t *self,
const void *const old_params,
const int old_version,
void **new_params,
int32_t *new_params_size,
int *new_version)
{
typedef struct dt_iop_colorzones_params_v5_t
{
dt_iop_colorzones_channel_t channel;
// three curves (L, C, h) with max number of nodes
dt_iop_colorzones_node_t curve[DT_IOP_COLORZONES_MAX_CHANNELS][DT_IOP_COLORZONES_MAXNODES];
int curve_num_nodes[DT_IOP_COLORZONES_MAX_CHANNELS];
int curve_type[DT_IOP_COLORZONES_MAX_CHANNELS];
float strength;
dt_iop_colorzones_modes_t mode;
int splines_version;
} dt_iop_colorzones_params_v5_t;
#define DT_IOP_COLORZONES1_BANDS 6
if(old_version == 1)
{
typedef struct dt_iop_colorzones_params_v1_t
{
int32_t channel;
float equalizer_x[3][DT_IOP_COLORZONES1_BANDS];
float equalizer_y[3][DT_IOP_COLORZONES1_BANDS];
} dt_iop_colorzones_params_v1_t;
const dt_iop_colorzones_params_v1_t *old = old_params;
dt_iop_colorzones_params_v5_t *new = malloc(sizeof(dt_iop_colorzones_params_v5_t));
new->channel = old->channel;
// keep first point
for(int i = 0; i < 3; i++)
{
new->curve[i][0].x = old->equalizer_x[i][0];
new->curve[i][0].y = old->equalizer_y[i][0];
}
for(int i = 0; i < 3; i++)
for(int k = 0; k < 6; k++)
{
// first+1 and last-1 are set to just after and before the
// first and last point
if(k == 0)
new->curve[i][k + 1].x = old->equalizer_x[i][k] + 0.001f;
else if(k == 5)
new->curve[i][k + 1].x = old->equalizer_x[i][k] - 0.001f;
else
new->curve[i][k + 1].x = old->equalizer_x[i][k];
new->curve[i][k + 1].y = old->equalizer_y[i][k];
}
// keep last point
for(int i = 0; i < 3; i++)
{
new->curve[i][7].x = old->equalizer_x[i][5];
new->curve[i][7].y = old->equalizer_y[i][5];
}
for(int c = 0; c < 3; c++)
{
new->curve_num_nodes[c] = DT_IOP_COLORZONES_BANDS;
new->curve_type[c] = CATMULL_ROM;
}
new->strength = 0.0f;
new->mode = DT_IOP_COLORZONES_MODE_SMOOTH;
new->splines_version = DT_IOP_COLORZONES_SPLINES_V1;
*new_params = new;
*new_params_size = sizeof(dt_iop_colorzones_params_v5_t);
*new_version = 5;
return 0;
}
if(old_version == 2)
{
typedef struct dt_iop_colorzones_params_v2_t
{
int32_t channel;
float equalizer_x[3][DT_IOP_COLORZONES_BANDS];
float equalizer_y[3][DT_IOP_COLORZONES_BANDS];
} dt_iop_colorzones_params_v2_t;
const dt_iop_colorzones_params_v2_t *old = old_params;
dt_iop_colorzones_params_v5_t *new = malloc(sizeof(dt_iop_colorzones_params_v5_t));
new->channel = old->channel;
for(int b = 0; b < DT_IOP_COLORZONES_BANDS; b++)
for(int c = 0; c < 3; c++)
{
new->curve[c][b].x = old->equalizer_x[c][b];
new->curve[c][b].y = old->equalizer_y[c][b];
}
for(int c = 0; c < 3; c++)
{
new->curve_num_nodes[c] = DT_IOP_COLORZONES_BANDS;
new->curve_type[c] = CATMULL_ROM;
}
new->strength = 0.0f;
new->mode = DT_IOP_COLORZONES_MODE_SMOOTH;
new->splines_version = DT_IOP_COLORZONES_SPLINES_V1;
*new_params = new;
*new_params_size = sizeof(dt_iop_colorzones_params_v5_t);
*new_version = 5;
return 0;
}
if(old_version == 3)
{
typedef struct dt_iop_colorzones_params_v3_t
{
int32_t channel;
float equalizer_x[3][DT_IOP_COLORZONES_BANDS];
float equalizer_y[3][DT_IOP_COLORZONES_BANDS];
float strength;
} dt_iop_colorzones_params_v3_t;
const dt_iop_colorzones_params_v3_t *old = old_params;
dt_iop_colorzones_params_v5_t *new = malloc(sizeof(dt_iop_colorzones_params_v5_t));
new->channel = old->channel;
for(int b = 0; b < DT_IOP_COLORZONES_BANDS; b++)
{
for(int c = 0; c < 3; c++)
{
new->curve[c][b].x = old->equalizer_x[c][b];
new->curve[c][b].y = old->equalizer_y[c][b];
}
}
for(int c = 0; c < 3; c++)
{
new->curve_num_nodes[c] = DT_IOP_COLORZONES_BANDS;
new->curve_type[c] = CATMULL_ROM;
}
new->strength = old->strength;
new->mode = DT_IOP_COLORZONES_MODE_SMOOTH;
new->splines_version = DT_IOP_COLORZONES_SPLINES_V1;
*new_params = new;
*new_params_size = sizeof(dt_iop_colorzones_params_v5_t);
*new_version = 5;
return 0;
}
if(old_version == 4)
{
typedef struct dt_iop_colorzones_params_v4_t
{
int32_t channel;
dt_iop_colorzones_node_t curve[DT_IOP_COLORZONES_MAX_CHANNELS][DT_IOP_COLORZONES_MAXNODES];
int curve_num_nodes[DT_IOP_COLORZONES_MAX_CHANNELS];
int curve_type[DT_IOP_COLORZONES_MAX_CHANNELS];
float strength;
int mode;
} dt_iop_colorzones_params_v4_t;
const dt_iop_colorzones_params_v4_t *old = old_params;
dt_iop_colorzones_params_v5_t *new = malloc(sizeof(dt_iop_colorzones_params_v5_t));
new->channel = old->channel;
for(int i = 0; i < DT_IOP_COLORZONES_MAXNODES; i++)
{
for(int c = 0; c < DT_IOP_COLORZONES_MAX_CHANNELS; c++)
{
new->curve[c][i].x = old->curve[c][i].x;
new->curve[c][i].y = old->curve[c][i].y;
}
}
for(int c = 0; c < DT_IOP_COLORZONES_MAX_CHANNELS; c++)
{
new->curve_num_nodes[c] = old->curve_num_nodes[c];
new->curve_type[c] = old->curve_type[c];
}
new->strength = old->strength;
new->mode = old->mode;
new->splines_version = DT_IOP_COLORZONES_SPLINES_V1;
*new_params = new;
*new_params_size = sizeof(dt_iop_colorzones_params_v5_t);
*new_version = 5;
return 0;
}
#undef DT_IOP_COLORZONES1_BANDS
return 1;
}
static float _curve_to_mouse(const float x,
const float zoom_factor,
const float offset)
{
return (x - offset) * zoom_factor;
}
static float _mouse_to_curve(const float x,
const float zoom_factor,
const float offset)
{
return (x / zoom_factor) + offset;
}
// fills in new parameters based on mouse position (in 0,1)
static void dt_iop_colorzones_get_params(dt_iop_colorzones_params_t *p,
dt_iop_colorzones_gui_data_t *g,
const int ch,
const double mouse_x,
const double mouse_y,
const float radius)
{
const int bands = p->curve_num_nodes[ch];
const float lin_mouse_x = _mouse_to_curve(mouse_x, g->zoom_factor, g->offset_x);
const float lin_mouse_y = _mouse_to_curve(mouse_y, g->zoom_factor, g->offset_y);
const float rad = radius / g->zoom_factor;
if(p->channel == DT_IOP_COLORZONES_h
&& p->splines_version == DT_IOP_COLORZONES_SPLINES_V1)
{
// periodic boundary
for(int k = 1; k < bands - 1; k++)
{
const float f = expf(-(lin_mouse_x - p->curve[ch][k].x)
* (lin_mouse_x - p->curve[ch][k].x) / (rad * rad));
p->curve[ch][k].y = (1.f - f) * p->curve[ch][k].y + f * lin_mouse_y;
}
const int m = bands - 1;
const float mind = fminf((lin_mouse_x - p->curve[ch][0].x)
* (lin_mouse_x - p->curve[ch][0].x),
(lin_mouse_x - p->curve[ch][m].x)
* (lin_mouse_x - p->curve[ch][m].x));
const float f = expf(-mind / (rad * rad));
p->curve[ch][0].y = (1.f - f) * p->curve[ch][0].y + f * lin_mouse_y;
p->curve[ch][m].y = (1.f - f) * p->curve[ch][m].y + f * lin_mouse_y;
}
else
{
for(int k = 0; k < bands; k++)
{
const float f = expf(-(lin_mouse_x - p->curve[ch][k].x)
* (lin_mouse_x - p->curve[ch][k].x) / (rad * rad));
p->curve[ch][k].y = (1.f - f) * p->curve[ch][k].y + f * lin_mouse_y;
}
}
}
static float lookup(const float *lut, const float i)
{
const int bin0 = MIN(0xffff, MAX(0, (int)(DT_IOP_COLORZONES_LUT_RES * i)));
const int bin1 = MIN(0xffff, MAX(0, (int)(DT_IOP_COLORZONES_LUT_RES * i) + 1));
const float f = DT_IOP_COLORZONES_LUT_RES * i - bin0;
return lut[bin1] * f + lut[bin0] * (1.f - f);
}
static inline float strength(const float value,
const float strength)
{
return value + (value - 0.5f) * (strength / 100.0f);
}
void process_display(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)
{
const dt_iop_colorzones_data_t *d = piece->data;
dt_iop_colorzones_gui_data_t *g = self->gui_data;
const int ch = piece->colors;
const float normalize_C = 1.f / (128.0f * M_SQRT2_F);
dt_iop_gui_enter_critical_section(self);
const dt_iop_colorzones_channel_t display_channel = g->channel;
dt_iop_gui_leave_critical_section(self);
dt_iop_image_copy_by_size(ovoid, ivoid, roi_out->width, roi_out->height, ch);
DT_OMP_FOR()
for(size_t k = 0; k < (size_t)roi_out->width * roi_out->height; k++)
{
float *in = (float *)ivoid + ch * k;
float *out = (float *)ovoid + ch * k;
dt_aligned_pixel_t LCh;
dt_Lab_2_LCH(in, LCh);
float select = 0.0f;
switch(d->channel)
{
case DT_IOP_COLORZONES_L:
select = LCh[0] * 0.01f;
break;
case DT_IOP_COLORZONES_C:
select = LCh[1] * normalize_C;
break;
case DT_IOP_COLORZONES_h:
default:
select = LCh[2];
break;
}
select = CLAMP(select, 0.f, 1.f);
out[3] = fabsf(lookup(d->lut[display_channel], select) - .5f) * 4.f;
out[3] = CLAMP(out[3], 0.f, 1.f);
}
piece->pipe->mask_display = DT_DEV_PIXELPIPE_DISPLAY_MASK;
piece->pipe->bypass_blendif = TRUE;
}
void process_v1(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)
{
const dt_iop_colorzones_data_t *d = piece->data;
const int ch = piece->colors;
const float normalize_C = 1.f / (128.0f * M_SQRT2_F);
DT_OMP_FOR()
for(size_t k = 0; k < (size_t)roi_out->width * roi_out->height; k++)
{
float *in = (float *)ivoid + ch * k;
float *out = (float *)ovoid + ch * k;
dt_aligned_pixel_t LCh;
dt_Lab_2_LCH(in, LCh);
float select = 0.0f;
switch(d->channel)
{
case DT_IOP_COLORZONES_L:
select = LCh[0] * 0.01f;
break;
case DT_IOP_COLORZONES_C:
select = LCh[1] * normalize_C;
break;
case DT_IOP_COLORZONES_h:
default:
select = LCh[2];
break;
}
select = CLAMP(select, 0.f, 1.f);
LCh[0] *= powf(2.0f, 4.0f * (lookup(d->lut[0], select) - .5f));
LCh[1] *= 2.f * lookup(d->lut[1], select);
LCh[2] += lookup(d->lut[2], select) - .5f;
dt_LCH_2_Lab(LCh, out);
out[3] = in[3];
}
}
void process_v3(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)
{
const dt_iop_colorzones_data_t *d = piece->data;
const int ch = piece->colors;
DT_OMP_FOR()
for(size_t k = 0; k < (size_t)roi_out->width * roi_out->height; k++)
{
float *in = (float *)ivoid + ch * k;
float *out = (float *)ovoid + ch * k;
const float a = in[1], b = in[2];
const float h = fmodf(atan2f(b, a) + DT_2PI_F, DT_2PI_F) / DT_2PI_F;
const float C = dt_fast_hypotf(b, a);
float select = 0.0f;
float blend = 0.0f;
switch(d->channel)
{
case DT_IOP_COLORZONES_L:
select = fminf(1.0f, in[0] / 100.0f);
break;
case DT_IOP_COLORZONES_C:
select = fminf(1.0f, C / 128.0f);
break;
default:
case DT_IOP_COLORZONES_h:
select = h;
blend = sqrf(1.0f - C / 128.0f);
break;
}
const float Lm = (blend * .5f + (1.0f - blend) * lookup(d->lut[0], select)) - .5f;
const float hm = (blend * .5f + (1.0f - blend) * lookup(d->lut[2], select)) - .5f;
blend *= blend; // saturation isn't as prone to artifacts:
// const float Cm = 2.0 * (blend*.5f + (1.0f-blend)*lookup(d->lut[1], select));
const float Cm = 2.0f * lookup(d->lut[1], select);
const float L = in[0] * powf(2.0f, 4.0f * Lm);
out[0] = L;
out[1] = cosf(DT_2PI_F * (h + hm)) * Cm * C;
out[2] = sinf(DT_2PI_F * (h + hm)) * Cm * C;
out[3] = in[3];
}
}
void process(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)
{
dt_iop_colorzones_data_t *d = piece->data;
dt_iop_colorzones_gui_data_t *g = self->gui_data;
gboolean show_display = FALSE;
if(self->dev->gui_attached && g && dt_pipe_is_full(piece->pipe) && dt_iop_has_focus(self))
{
dt_iop_gui_enter_critical_section(self);
show_display = g->display_mask;
dt_iop_gui_leave_critical_section(self);
}
if(show_display)
process_display(self, piece, ivoid, ovoid, roi_in, roi_out);
else if(d->mode == DT_IOP_COLORZONES_MODE_SMOOTH)
process_v3(self, piece, ivoid, ovoid, roi_in, roi_out);
else
process_v1(self, piece, ivoid, ovoid, roi_in, roi_out);
}
#ifdef HAVE_OPENCL
int process_cl(dt_iop_module_t *self,
dt_dev_pixelpipe_iop_t *piece,
cl_mem dev_in, cl_mem dev_out,
const dt_iop_roi_t *const roi_in,
const dt_iop_roi_t *const roi_out)
{
dt_iop_colorzones_data_t *d = piece->data;
dt_iop_colorzones_global_data_t *gd = self->global_data;
cl_mem dev_L, dev_a, dev_b = NULL;
cl_int err = CL_MEM_OBJECT_ALLOCATION_FAILURE;
const int devid = piece->pipe->devid;
const int width = roi_in->width;
const int height = roi_in->height;
const int kernel_colorzones
= (d->mode == DT_IOP_COLORZONES_MODE_SMOOTH)
? gd->kernel_colorzones_v3
: gd->kernel_colorzones;
dev_L = dt_opencl_copy_host_to_image(devid, d->lut[0], 256, 256, sizeof(float));
dev_a = dt_opencl_copy_host_to_image(devid, d->lut[1], 256, 256, sizeof(float));
dev_b = dt_opencl_copy_host_to_image(devid, d->lut[2], 256, 256, sizeof(float));
if(dev_L == NULL || dev_a == NULL || dev_b == NULL)
goto error;
err = dt_opencl_enqueue_kernel_2d_args(devid, kernel_colorzones, width, height,
CLARG(dev_in), CLARG(dev_out),
CLARG(width), CLARG(height),
CLARG(d->channel),
CLARG(dev_L), CLARG(dev_a), CLARG(dev_b));
error:
dt_opencl_release_mem_object(dev_L);
dt_opencl_release_mem_object(dev_a);
dt_opencl_release_mem_object(dev_b);
return err;
}
#endif
void init_presets(dt_iop_module_so_t *self)
{
dt_iop_colorzones_params_t p = { 0 };
const int version = 5;
p.strength = 0.f;
p.mode = DT_IOP_COLORZONES_MODE_SMOOTH;
p.splines_version = DT_IOP_COLORZONES_SPLINES_V2;
dt_database_start_transaction(darktable.db);
// red black white
p.channel = DT_IOP_COLORZONES_h;
for(int k = 0; k < DT_IOP_COLORZONES_BANDS - 1; k++)
{
p.curve[DT_IOP_COLORZONES_L][k].y = .5f;
p.curve[DT_IOP_COLORZONES_C][k].y = .0f;
p.curve[DT_IOP_COLORZONES_h][k].y = .5f;
p.curve[DT_IOP_COLORZONES_L][k].x = k / (DT_IOP_COLORZONES_BANDS - 1.f);
p.curve[DT_IOP_COLORZONES_C][k].x = k / (DT_IOP_COLORZONES_BANDS - 1.f);
p.curve[DT_IOP_COLORZONES_h][k].x = k / (DT_IOP_COLORZONES_BANDS - 1.f);
}
p.curve[DT_IOP_COLORZONES_C][0].y =
p.curve[DT_IOP_COLORZONES_C][DT_IOP_COLORZONES_BANDS - 1].y = 0.65f;
p.curve[DT_IOP_COLORZONES_C][1].x = 3.f / 16.f;
p.curve[DT_IOP_COLORZONES_C][3].x = 0.50f;
p.curve[DT_IOP_COLORZONES_C][4].x = 0.51f;
p.curve[DT_IOP_COLORZONES_C][6].x = 15.f / 16.f;
for(int c = 0; c < 3; c++)
{
p.curve_num_nodes[c] = DT_IOP_COLORZONES_BANDS - 1;
p.curve_type[c] = CATMULL_ROM;
}
dt_gui_presets_add_generic(_("B&W: with red"), self->op,
version, &p, sizeof(p), TRUE, DEVELOP_BLEND_CS_RGB_DISPLAY);
// black white and skin tones
p.channel = DT_IOP_COLORZONES_h;
for(int k = 0; k < DT_IOP_COLORZONES_BANDS - 1; k++)
{
p.curve[DT_IOP_COLORZONES_L][k].y = .5f;
p.curve[DT_IOP_COLORZONES_C][k].y = .0f;
p.curve[DT_IOP_COLORZONES_h][k].y = .5f;
p.curve[DT_IOP_COLORZONES_L][k].x = k / (DT_IOP_COLORZONES_BANDS - 1.f);
p.curve[DT_IOP_COLORZONES_C][k].x = k / (DT_IOP_COLORZONES_BANDS - 1.f);
p.curve[DT_IOP_COLORZONES_h][k].x = k / (DT_IOP_COLORZONES_BANDS - 1.f);
}
p.curve[DT_IOP_COLORZONES_C][0].y = 0.5f;
p.curve[DT_IOP_COLORZONES_C][2].x = 0.25f;
p.curve[DT_IOP_COLORZONES_C][1].x = 0.16f;
p.curve[DT_IOP_COLORZONES_C][1].y = 0.3f;
for(int c = 0; c < 3; c++)
{
p.curve_num_nodes[c] = DT_IOP_COLORZONES_BANDS - 1;
p.curve_type[c] = CATMULL_ROM;
}
dt_gui_presets_add_generic(_("B&W: with skin tones"), self->op,
version, &p, sizeof(p), TRUE, DEVELOP_BLEND_CS_RGB_DISPLAY);
// polarizing filter
p.channel = DT_IOP_COLORZONES_C;
for(int k = 0; k < DT_IOP_COLORZONES_BANDS; k++)
{
p.curve[DT_IOP_COLORZONES_L][k].y = .5f;
p.curve[DT_IOP_COLORZONES_C][k].y = .5f;
p.curve[DT_IOP_COLORZONES_h][k].y = .5f;
p.curve[DT_IOP_COLORZONES_L][k].x = k / (DT_IOP_COLORZONES_BANDS - 1.f);
p.curve[DT_IOP_COLORZONES_C][k].x = k / (DT_IOP_COLORZONES_BANDS - 1.f);
p.curve[DT_IOP_COLORZONES_h][k].x = k / (DT_IOP_COLORZONES_BANDS - 1.f);
}
for(int k = 3; k < DT_IOP_COLORZONES_BANDS; k++)
p.curve[DT_IOP_COLORZONES_C][k].y +=
(k - 2.5f) / (DT_IOP_COLORZONES_BANDS - 2.0f) * 0.25f;
for(int k = 4; k < DT_IOP_COLORZONES_BANDS; k++)
p.curve[DT_IOP_COLORZONES_L][k].y -=
(k - 3.5f) / (DT_IOP_COLORZONES_BANDS - 3.0f) * 0.35f;
for(int c = 0; c < 3; c++)
{
p.curve_num_nodes[c] = DT_IOP_COLORZONES_BANDS;
p.curve_type[c] = CATMULL_ROM;
}
dt_gui_presets_add_generic(_("polarizing filter"), self->op,
version, &p, sizeof(p), TRUE, DEVELOP_BLEND_CS_RGB_DISPLAY);
// natural skin tone
p.channel = DT_IOP_COLORZONES_h;
for(int k = 0; k < DT_IOP_COLORZONES_BANDS - 1; k++)
{
p.curve[DT_IOP_COLORZONES_L][k].y = .5f;
p.curve[DT_IOP_COLORZONES_C][k].y = .5f;
p.curve[DT_IOP_COLORZONES_h][k].y = .5f;
p.curve[DT_IOP_COLORZONES_L][k].x = k / (DT_IOP_COLORZONES_BANDS - 1.f);
p.curve[DT_IOP_COLORZONES_C][k].x = k / (DT_IOP_COLORZONES_BANDS - 1.f);
p.curve[DT_IOP_COLORZONES_h][k].x = k / (DT_IOP_COLORZONES_BANDS - 1.f);
}
p.curve[DT_IOP_COLORZONES_C][1].y = .45f;
p.curve[DT_IOP_COLORZONES_h][1].y = .55f;
for(int c = 0; c < 3; c++)
{
p.curve_num_nodes[c] = DT_IOP_COLORZONES_BANDS - 1;
p.curve_type[c] = CATMULL_ROM;
}
dt_gui_presets_add_generic(_("natural skin tones"), self->op,
version, &p, sizeof(p), TRUE, DEVELOP_BLEND_CS_RGB_DISPLAY);
// black and white film
p.channel = DT_IOP_COLORZONES_h;
for(int k = 0; k < DT_IOP_COLORZONES_BANDS - 1; k++)
{
p.curve[DT_IOP_COLORZONES_C][k].y = .0f;
p.curve[DT_IOP_COLORZONES_h][k].y = .5f;
p.curve[DT_IOP_COLORZONES_C][k].x = k / (DT_IOP_COLORZONES_BANDS - 1.f);
p.curve[DT_IOP_COLORZONES_h][k].x = k / (DT_IOP_COLORZONES_BANDS - 1.f);
}
p.curve[DT_IOP_COLORZONES_L][0].x = 0.000000f;
p.curve[DT_IOP_COLORZONES_L][0].y = 0.613040f;
p.curve[DT_IOP_COLORZONES_L][1].x = 0.010000f;
p.curve[DT_IOP_COLORZONES_L][1].y = 0.613040f;
p.curve[DT_IOP_COLORZONES_L][2].x = 0.245283f;
p.curve[DT_IOP_COLORZONES_L][2].y = 0.447962f;
p.curve[DT_IOP_COLORZONES_L][3].x = 0.498113f;
p.curve[DT_IOP_COLORZONES_L][3].y = 0.529201f;
p.curve[DT_IOP_COLORZONES_L][4].x = 0.641509f;
p.curve[DT_IOP_COLORZONES_L][4].y = 0.664967f;
p.curve[DT_IOP_COLORZONES_L][5].x = 0.879245f;
p.curve[DT_IOP_COLORZONES_L][5].y = 0.777294f;
p.curve[DT_IOP_COLORZONES_L][6].x = 0.990000f;
p.curve[DT_IOP_COLORZONES_L][6].y = 0.613040f;
for(int c = 0; c < 3; c++)
{
p.curve_num_nodes[c] = DT_IOP_COLORZONES_BANDS - 1;
p.curve_type[c] = CATMULL_ROM;
}
dt_gui_presets_add_generic(_("B&W: film"), self->op,
version, &p, sizeof(p), TRUE, DEVELOP_BLEND_CS_RGB_DISPLAY);
// neutral preset with just a set of nodes uniformly distributed along the hue axis
const int colorzones_bands_hsl = 8;
p.channel = DT_IOP_COLORZONES_h;
for(int k = 0; k < colorzones_bands_hsl; k++)
{
p.curve[DT_IOP_COLORZONES_L][k].x = (float)k / colorzones_bands_hsl;
p.curve[DT_IOP_COLORZONES_L][k].y = 0.5f;
p.curve[DT_IOP_COLORZONES_C][k].x = (float)k / colorzones_bands_hsl;
p.curve[DT_IOP_COLORZONES_C][k].y = 0.5f;
p.curve[DT_IOP_COLORZONES_h][k].x = (float)k / colorzones_bands_hsl;
p.curve[DT_IOP_COLORZONES_h][k].y = 0.5f;
}
for(int c = 0; c < 3; c++)
{
p.curve_num_nodes[c] = colorzones_bands_hsl;
p.curve_type[c] = MONOTONE_HERMITE;
}
dt_gui_presets_add_generic(_("HSL base setting"), self->op,
version, &p, sizeof(p), TRUE, DEVELOP_BLEND_CS_RGB_DISPLAY);
dt_database_release_transaction(darktable.db);
}
static void _reset_display_selection(dt_iop_module_t *self)
{
dt_iop_colorzones_gui_data_t *g = self->gui_data;
if(g)
{
if(g->display_mask)
{
g->display_mask = FALSE;
dt_iop_refresh_center(self);
}
if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(g->bt_showmask)))
{
DT_ENTER_GUI_UPDATE();
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(g->bt_showmask), FALSE);
DT_LEAVE_GUI_UPDATE();
}
}
}
static void _reset_nodes(dt_iop_colorzones_params_t *p,
const int ch,
const _Bool touch_edges)
{
for(int k = 0; k < p->curve_num_nodes[ch]; k++)
{
if(touch_edges)
p->curve[ch][k].x = (float)k / (float)(p->curve_num_nodes[ch] - 1);
else
p->curve[ch][k].x = ((float)k + 0.5f) / (float)p->curve_num_nodes[ch];
p->curve[ch][k].y = 0.5f;
}
}
static void _reset_parameters(dt_iop_colorzones_params_t *p,
const int channel,
const int splines_version)
{
for(int ch = 0; ch < DT_IOP_COLORZONES_MAX_CHANNELS; ch++)
{
p->curve_num_nodes[ch] = 2;
p->curve_type[ch] = CATMULL_ROM; // CUBIC_SPLINE, MONOTONE_HERMITE
_reset_nodes(p, ch, channel != DT_IOP_COLORZONES_h);
}
p->strength = 0.0f;
p->channel = channel;
p->mode = DT_IOP_COLORZONES_MODE_SMOOTH;
p->splines_version = splines_version;
}
static int _select_base_display_color(dt_iop_module_t *self,
float *picked_color,
float *picker_min,
float *picker_max)
{
const int select_by_picker = !(self->request_color_pick != DT_REQUEST_COLORPICK_MODULE
|| self->picked_color_max[0] < 0.0f
|| self->picked_color[0] == 0.0f);
if(!select_by_picker)
{
dt_aligned_pixel_t rgb = { 0.0f, 0.3f, 0.7f };
dt_aligned_pixel_t xyz;
dt_aligned_pixel_t lab;
dt_sRGB_to_XYZ(rgb, xyz);
dt_XYZ_to_Lab(xyz, lab);
dt_Lab_2_LCH(lab, picked_color);
picker_max[0] = picker_min[0] = picked_color[0];
picker_max[1] = picker_min[1] = picked_color[1];
picker_max[2] = picker_min[2] = picked_color[2];
}
else
{
for(int k = 0; k < 3; k++)
{
picked_color[k] = self->picked_color[k];
picker_min[k] = self->picked_color_min[k];
picker_max[k] = self->picked_color_max[k];
}
}
return select_by_picker;
}
static void _draw_color_picker(dt_iop_module_t *self,
cairo_t *cr,
dt_iop_colorzones_params_t *p,
dt_iop_colorzones_gui_data_t *g,
const int width,
const int height,
const float *const picker_color,
const float *const picker_min,
const float *const picker_max)
{
if(self->request_color_pick == DT_REQUEST_COLORPICK_MODULE
&& (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(g->colorpicker))
|| gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(g->colorpicker_set_values))))
{
// the global live samples ...
GSList *samples = darktable.lib->proxy.colorpicker.live_samples;
if(samples)
{
const dt_iop_order_iccprofile_info_t *const histogram_profile
= dt_ioppr_get_histogram_profile_info(self->dev);
const dt_iop_order_iccprofile_info_t *const work_profile
= dt_ioppr_get_iop_work_profile_info(self, self->dev->iop);
dt_aligned_pixel_t pick_mean, pick_min, pick_max;
int converted_cst;
if(work_profile && histogram_profile)
{
dt_colorpicker_sample_t *sample = NULL;
for(; samples; samples = g_slist_next(samples))
{
sample = samples->data;
float picked_i = -1.0f;
float picked_min_i = -1.0f;
float picked_max_i = -1.0f;
// this functions need a 4c image
for(int k = 0; k < 3; k++)
{
pick_mean[k] = sample->scope[DT_PICK_MEAN][k];
pick_min[k] = sample->scope[DT_PICK_MIN][k];
pick_max[k] = sample->scope[DT_PICK_MAX][k];
}
pick_mean[3] = pick_min[3] = pick_max[3] = 1.f;
dt_ioppr_transform_image_colorspace_rgb(pick_mean, pick_mean,
1, 1, histogram_profile, work_profile,
"color zones");
dt_ioppr_transform_image_colorspace_rgb(pick_min, pick_min,
1, 1, histogram_profile, work_profile,
"color zones");
dt_ioppr_transform_image_colorspace_rgb(pick_max, pick_max,
1, 1, histogram_profile, work_profile,
"color zones");
dt_ioppr_transform_image_colorspace(self, pick_mean, pick_mean,
1, 1, IOP_CS_RGB, IOP_CS_LAB,
&converted_cst, work_profile);
dt_ioppr_transform_image_colorspace(self, pick_min, pick_min,
1, 1, IOP_CS_RGB, IOP_CS_LAB,
&converted_cst, work_profile);
dt_ioppr_transform_image_colorspace(self, pick_max, pick_max,
1, 1, IOP_CS_RGB, IOP_CS_LAB,
&converted_cst, work_profile);
dt_Lab_2_LCH(pick_mean, pick_mean);
dt_Lab_2_LCH(pick_min, pick_min);
dt_Lab_2_LCH(pick_max, pick_max);
switch(p->channel)
{
// select by channel, abscissa:
case DT_IOP_COLORZONES_L:
picked_i = pick_mean[0] / 100.0f;
picked_min_i = pick_min[0] / 100.0f;
picked_max_i = pick_max[0] / 100.0f;
break;
case DT_IOP_COLORZONES_C:
picked_i = pick_mean[1] / (128.0f * M_SQRT2_F);
picked_min_i = pick_min[1] / (128.0f * M_SQRT2_F);
picked_max_i = pick_max[1] / (128.0f * M_SQRT2_F);
break;
default: // case DT_IOP_COLORZONES_h:
picked_i = pick_mean[2];
picked_min_i = pick_min[2];
picked_max_i = pick_max[2];
break;
}
// Convert abcissa to log coordinates if needed
picked_i = _curve_to_mouse(picked_i, g->zoom_factor, g->offset_x);
picked_min_i = _curve_to_mouse(picked_min_i, g->zoom_factor, g->offset_x);
picked_max_i = _curve_to_mouse(picked_max_i, g->zoom_factor, g->offset_x);
cairo_set_source_rgba(cr, 0.5, 0.7, 0.5, 0.15);
cairo_rectangle(cr, width * picked_min_i, 0,
width * fmax(picked_max_i - picked_min_i, 0.0f), height);
cairo_fill(cr);
cairo_set_source_rgba(cr, 0.5, 0.7, 0.5, 0.5);
cairo_move_to(cr, width * picked_i, 0);
cairo_line_to(cr, width * picked_i, height);
cairo_stroke(cr);
}
}
}
}
if(self->request_color_pick == DT_REQUEST_COLORPICK_MODULE
&& (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(g->colorpicker))
|| gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(g->colorpicker_set_values))))
{
// draw marker for currently selected color:
float picked_i = -1.0f;
float picked_min_i = -1.0f;
float picked_max_i = -1.0f;
switch(p->channel)
{
// select by channel, abscissa:
case DT_IOP_COLORZONES_L:
picked_i = picker_color[0] / 100.0f;
picked_min_i = picker_min[0] / 100.0f;
picked_max_i = picker_max[0] / 100.0f;
break;
case DT_IOP_COLORZONES_C:
picked_i = picker_color[1] / (128.0f * M_SQRT2_F);
picked_min_i = picker_min[1] / (128.0f * M_SQRT2_F);
picked_max_i = picker_max[1] / (128.0f * M_SQRT2_F);
break;
default: // case DT_IOP_COLORZONES_h:
picked_i = picker_color[2];
picked_min_i = picker_min[2];
picked_max_i = picker_max[2];
break;
}
picked_i = _curve_to_mouse(picked_i, g->zoom_factor, g->offset_x);
picked_min_i = _curve_to_mouse(picked_min_i, g->zoom_factor, g->offset_x);
picked_max_i = _curve_to_mouse(picked_max_i, g->zoom_factor, g->offset_x);
cairo_save(cr);
cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 0.25);
cairo_rectangle(cr, width * picked_min_i, 0,
width * fmax(picked_max_i - picked_min_i, 0.0), height);
cairo_fill(cr);
cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
cairo_set_operator(cr, CAIRO_OPERATOR_XOR);
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(2.));
cairo_move_to(cr, width * picked_i, 0.0);
cairo_line_to(cr, width * picked_i, height);
cairo_stroke(cr);
cairo_restore(cr);
}
}
// graph x resulolution
#define DT_COLORZONES_CELLSI 64
// graph y resulolution
#define DT_COLORZONES_CELLSJ 36
#define COLORZONES_DRAW_BACKGROUD_BOX \
dt_aligned_pixel_t Lab; \
dt_LCH_2_Lab(LCh, Lab); \
const float L0 = Lab[0]; \
/* gamut mapping magic from iop/exposure.c: */ \
const float Lwhite = 100.0f, Lclip = 20.0f; \
const float Lcap = fminf(100.0f, Lab[0]); \
const float clip \
= 1.0f \
- (Lcap - L0) * (1.0f / 100.0f) * fminf(Lwhite - Lclip, fmaxf(0.0f, Lab[0] - Lclip)) / (Lwhite - Lclip); \
const float clip2 = clip * clip * clip; \
Lab[1] *= Lab[0] / L0 * clip2; \
Lab[2] *= Lab[0] / L0 * clip2; \
Lab[3] = 0.0f; \
dt_aligned_pixel_t xyz; \
dt_aligned_pixel_t rgb; \
dt_Lab_to_XYZ(Lab, xyz); \
dt_XYZ_to_sRGB(xyz, rgb); \
\
cairo_set_source_rgb(cr, rgb[0], rgb[1], rgb[2]);
static void _draw_background(cairo_t *cr,
dt_iop_colorzones_params_t *p,
dt_iop_colorzones_gui_data_t *g,
const int select_by_picker,
const int width,
const int height,
const float *picked_color)
{
const float bg_sat_factor =
dt_conf_get_float("plugins/darkroom/colorzones/bg_sat_factor");
const float normalize_C = (128.f * bg_sat_factor * M_SQRT2_F);
const int cellsi = DT_COLORZONES_CELLSI;
const int cellsj = DT_COLORZONES_CELLSJ;
for(int j = 0; j < cellsj; j++)
{
for(int i = 0; i < cellsi; i++)
{
dt_aligned_pixel_t LCh = { 0 };
const float jj = _mouse_to_curve(1.0f - ((float)j - .5f) / (float)(cellsj - 1),
g->zoom_factor, g->offset_y);
const float jjh
= _mouse_to_curve(1.0f - (((float)j / (float)(cellsj - 1))), g->zoom_factor,
g->offset_y) + .5f;
const float ii = _mouse_to_curve(((float)i + .5f) / (float)(cellsi - 1),
g->zoom_factor, g->offset_x);
const float iih = _mouse_to_curve((float)i / (float)(cellsi - 1),
g->zoom_factor,
g->offset_x);
// select by channel, abscissa:
switch(p->channel)
{
// select by channel, abscissa:
case DT_IOP_COLORZONES_L:
LCh[0] = 100.0f * ii;
LCh[1] = normalize_C * .5f;
LCh[2] = picked_color[2];
break;
case DT_IOP_COLORZONES_C:
LCh[0] = 50.0f;
LCh[1] = picked_color[1] * 2.f * bg_sat_factor * ii;
LCh[2] = picked_color[2];
break;
default: // DT_IOP_COLORZONES_h
LCh[0] = 50.0f;
LCh[1] = normalize_C * .5f;
LCh[2] = iih;
break;
}
// channel to be altered:
switch(g->channel)
{
// select by channel, abscissa:
case DT_IOP_COLORZONES_L:
if(p->channel == DT_IOP_COLORZONES_L)
LCh[0] *= jj;
else
LCh[0] += -50.0f + 100.0f * jj;
break;
case DT_IOP_COLORZONES_C:
LCh[1] *= 2.f * jj;
break;
default: // DT_IOP_COLORZONES_h
LCh[2] += jjh;
break;
}
COLORZONES_DRAW_BACKGROUD_BOX
cairo_rectangle(cr,
width * i / (float)cellsi, height * j / (float)cellsj,
width / (float)cellsi,
height / (float)cellsj);
cairo_fill(cr);
}
}
}
static gboolean _area_draw_callback(GtkWidget *widget,
cairo_t *crf,
dt_iop_module_t *self)
{
dt_iop_colorzones_gui_data_t *g = self->gui_data;
dt_iop_colorzones_params_t p = *(dt_iop_colorzones_params_t *)self->params;
if(p.splines_version == DT_IOP_COLORZONES_SPLINES_V1)
{
for(int ch = 0; ch < DT_IOP_COLORZONES_MAX_CHANNELS; ch++)
{
if(g->minmax_curve_type[ch] != p.curve_type[ch]
|| g->minmax_curve_nodes[ch] != p.curve_num_nodes[ch])
{
dt_draw_curve_destroy(g->minmax_curve[ch]);
g->minmax_curve[ch] = dt_draw_curve_new(0.0f, 1.0f, p.curve_type[ch]);
g->minmax_curve_nodes[ch] = p.curve_num_nodes[ch];
g->minmax_curve_type[ch] = p.curve_type[ch];
if(p.channel == DT_IOP_COLORZONES_h)
dt_draw_curve_add_point(g->minmax_curve[ch],
p.curve[ch][p.curve_num_nodes[ch] - 2].x - 1.0f,
p.curve[ch][p.curve_num_nodes[ch] - 2].y);
else
dt_draw_curve_add_point(g->minmax_curve[ch],
p.curve[ch][p.curve_num_nodes[ch] - 2].x - 1.0f,
p.curve[ch][0].y);
for(int k = 0; k < p.curve_num_nodes[ch]; k++)
dt_draw_curve_add_point(g->minmax_curve[ch],
p.curve[ch][k].x, p.curve[ch][k].y);
if(p.channel == DT_IOP_COLORZONES_h)
dt_draw_curve_add_point(g->minmax_curve[ch],
p.curve[ch][1].x + 1.0f, p.curve[ch][1].y);
else
dt_draw_curve_add_point(g->minmax_curve[ch], p.curve[ch][1].x + 1.0f,
p.curve[ch][p.curve_num_nodes[ch] - 1].y);
}
else
{
if(p.channel == DT_IOP_COLORZONES_h)
dt_draw_curve_set_point(g->minmax_curve[ch], 0,
p.curve[ch][p.curve_num_nodes[ch] - 2].x - 1.0f,
p.curve[ch][p.curve_num_nodes[ch] - 2].y);
else
dt_draw_curve_set_point(g->minmax_curve[ch], 0,
p.curve[ch][p.curve_num_nodes[ch] - 2].x - 1.0f,
p.curve[ch][0].y);
for(int k = 0; k < p.curve_num_nodes[ch]; k++)
dt_draw_curve_set_point(g->minmax_curve[ch], k + 1,
p.curve[ch][k].x, p.curve[ch][k].y);
if(p.channel == DT_IOP_COLORZONES_h)
dt_draw_curve_set_point(g->minmax_curve[ch],
p.curve_num_nodes[ch] + 1, p.curve[ch][1].x + 1.0f,
p.curve[ch][1].y);
else
dt_draw_curve_set_point(g->minmax_curve[ch],
p.curve_num_nodes[ch] + 1, p.curve[ch][1].x + 1.0f,
p.curve[ch][p.curve_num_nodes[ch] - 1].y);
}
dt_draw_curve_calc_values(g->minmax_curve[ch], 0.0f, 1.0f,
DT_IOP_COLORZONES_RES, NULL, g->draw_ys[ch]);
}
}
else
{
for(int ch = 0; ch < DT_IOP_COLORZONES_MAX_CHANNELS; ch++)
{
if(g->minmax_curve_type[ch] != p.curve_type[ch]
|| g->minmax_curve_nodes[ch] != p.curve_num_nodes[ch]
|| g->minmax_curve[ch]->c.m_numAnchors != p.curve_num_nodes[ch])
{
dt_draw_curve_destroy(g->minmax_curve[ch]);
g->minmax_curve[ch] = dt_draw_curve_new(0.f, 1.f, p.curve_type[ch]);
g->minmax_curve_nodes[ch] = p.curve_num_nodes[ch];
g->minmax_curve_type[ch] = p.curve_type[ch];
for(int k = 0; k < p.curve_num_nodes[ch]; k++)
dt_draw_curve_add_point(g->minmax_curve[ch], p.curve[ch][k].x, p.curve[ch][k].y);
}
else
{
for(int k = 0; k < p.curve_num_nodes[ch]; k++)
dt_draw_curve_set_point(g->minmax_curve[ch], k,
p.curve[ch][k].x, p.curve[ch][k].y);
}
dt_draw_curve_calc_values_V2(g->minmax_curve[ch], 0.f, 1.f,
DT_IOP_COLORZONES_RES, NULL, g->draw_ys[ch],
p.channel == DT_IOP_COLORZONES_h);
}
}
const int ch = (int)g->channel;
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
const int inset = DT_IOP_COLORZONES_INSET;
int width = allocation.width, height = allocation.height;
cairo_surface_t *cst = dt_cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
cairo_t *cr = cairo_create(cst);
// clear bg, match color of the notebook tabs:
GdkRGBA color;
GtkStyleContext *context = gtk_widget_get_style_context(widget);
const gboolean color_found = gtk_style_context_lookup_color
(context, "graph_overlay", &color);
if(!color_found)
{
color.red = 1.0;
color.green = 0.0;
color.blue = 0.0;
color.alpha = 1.0;
}
gdk_cairo_set_source_rgba(cr, &color);
cairo_paint(cr);
cairo_translate(cr, inset, inset);
width -= 2 * inset;
height -= 2 * inset;
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(1.0));
cairo_set_source_rgb(cr, .1, .1, .1);
cairo_rectangle(cr, 0, 0, width, height);
cairo_stroke(cr);
cairo_set_source_rgb(cr, .3, .3, .3);
cairo_rectangle(cr, 0, 0, width, height);
cairo_fill(cr);
// if color picker is active we use it as base color
// otherwise we use a light blue
// we will work on LCh
dt_aligned_pixel_t picked_color, picker_min, picker_max;
const int select_by_picker =
_select_base_display_color(self, picked_color, picker_min, picker_max);
cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE);
_draw_background(cr, &p, g, select_by_picker, width, height, picked_color);
cairo_set_antialias(cr, CAIRO_ANTIALIAS_DEFAULT);
// draw histogram in background
// only if module is enabled
if(self->enabled)
{
// only if no color picker
if(self->request_color_pick != DT_REQUEST_COLORPICK_MODULE)
{
const int ch_hist = p.channel;
const uint32_t *hist = self->histogram;
const gboolean is_linear = darktable.lib->proxy.histogram.is_linear;
const float hist_max = is_linear ? self->histogram_max[ch_hist]
: logf(1.0f + self->histogram_max[ch_hist]);
if(hist && hist_max > 0.0f)
{
cairo_save(cr);
cairo_translate(cr, 0, height);
cairo_scale(cr, width / 255.0, -(height - DT_PIXEL_APPLY_DPI(5)) / hist_max);
cairo_set_source_rgba(cr, .2, .2, .2, 0.5);
dt_draw_histogram_8_zoomed(cr, hist, 4, ch_hist,
g->zoom_factor, g->offset_x * 255.f,
g->offset_y * hist_max, is_linear);
cairo_restore(cr);
}
}
_draw_color_picker(self, cr, &p, g, width, height,
picked_color, picker_min, picker_max);
}
if(g->edit_by_area)
{
// draw x positions
cairo_set_source_rgb(cr, 0.6, 0.6, 0.6);
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(1.));
const float arrw = DT_PIXEL_APPLY_DPI(7.0f);
for(int k = 0; k < p.curve_num_nodes[ch]; k++)
{
const float x = _curve_to_mouse(p.curve[ch][k].x, g->zoom_factor, g->offset_x);
cairo_move_to(cr, width * x, height + inset - DT_PIXEL_APPLY_DPI(1));
cairo_rel_line_to(cr, -arrw * .5f, 0);
cairo_rel_line_to(cr, arrw * .5f, -arrw);
cairo_rel_line_to(cr, arrw * .5f, arrw);
cairo_close_path(cr);
if(g->x_move == k)
cairo_fill(cr);
else
cairo_stroke(cr);
}
}
cairo_translate(cr, 0, height);
// draw zoom info
if(darktable.develop->darkroom_skip_mouse_events)
{
char text[256];
PangoLayout *layout;
PangoRectangle ink;
PangoFontDescription *desc = dt_gui_get_font();
pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);
pango_font_description_set_absolute_size(desc, PANGO_SCALE);
layout = pango_cairo_create_layout(cr);
pango_layout_set_font_description(layout, desc);
// scale conservatively to 100% of width:
snprintf(text, sizeof(text), "zoom: 100 x: 100 y: 100");
pango_layout_set_text(layout, text, -1);
pango_layout_get_pixel_extents(layout, &ink, NULL);
pango_font_description_set_absolute_size(desc, width * 1.0 / ink.width * PANGO_SCALE);
pango_layout_set_font_description(layout, desc);
snprintf(text, sizeof(text), "zoom: %i x: %i y: %i",
(int)((g->zoom_factor - 1.f) * 100.f),
(int)(g->offset_x * 100.f), (int)(g->offset_y * 100.f));
cairo_set_source_rgba(cr, 0.1, 0.1, 0.1, 0.5);
pango_layout_set_text(layout, text, -1);
pango_layout_get_pixel_extents(layout, &ink, NULL);
cairo_move_to(cr, 0.98f * width - ink.width - ink.x,
-0.02 * height - ink.height - ink.y);
pango_cairo_show_layout(cr, layout);
cairo_stroke(cr);
pango_font_description_free(desc);
g_object_unref(layout);
}
// draw curves, selected last.
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(2.));
for(int i = 0; i < DT_IOP_COLORZONES_MAX_CHANNELS; i++)
{
const int ch_inv = ((int)g->channel + i + 1) % 3;
if(i == 2)
cairo_set_source_rgba(cr, .7, .7, .7, 1.0);
else
cairo_set_source_rgba(cr, .7, .7, .7, 0.3);
cairo_move_to(cr, 0, -height * _curve_to_mouse(g->draw_ys[ch_inv][0],
g->zoom_factor, g->offset_y));
for(int k = 1; k < DT_IOP_COLORZONES_RES; k++)
{
const float xx = (float)k / (float)(DT_IOP_COLORZONES_RES - 1);
const float yy = g->draw_ys[ch_inv][k];
const float x = _curve_to_mouse(xx, g->zoom_factor, g->offset_x),
y = _curve_to_mouse(yy, g->zoom_factor, g->offset_y);
cairo_line_to(cr, x * width, -height * y);
}
cairo_stroke(cr);
}
// draw dots on knots
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(1.));
cairo_set_source_rgb(cr, 0.6, 0.6, 0.6);
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(1.));
for(int k = 0; k < p.curve_num_nodes[ch]; k++)
{
const float x = _curve_to_mouse(p.curve[ch][k].x, g->zoom_factor, g->offset_x),
y = _curve_to_mouse(p.curve[ch][k].y, g->zoom_factor, g->offset_y);
cairo_arc(cr, width * x, -height * y, DT_PIXEL_APPLY_DPI(3.0), 0.0, 2.0 * M_PI);
cairo_stroke(cr);
}
// draw min/max, if selected
if(g->edit_by_area && (g->mouse_y > 0 || g->dragging))
{
const int bands = p.curve_num_nodes[ch];
p = *(dt_iop_colorzones_params_t *)self->params;
dt_iop_colorzones_get_params(&p, g, g->channel, g->mouse_x, 1., g->mouse_radius);
if(p.splines_version == DT_IOP_COLORZONES_SPLINES_V1)
{
if(p.channel == DT_IOP_COLORZONES_h)
dt_draw_curve_set_point(g->minmax_curve[ch], 0,
p.curve[ch][bands - 2].x - 1.f, p.curve[ch][bands - 2].y);
else
dt_draw_curve_set_point(g->minmax_curve[ch], 0,
p.curve[ch][bands - 2].x - 1.f, p.curve[ch][0].y);
for(int k = 0; k < bands; k++)
dt_draw_curve_set_point(g->minmax_curve[ch], k + 1,
p.curve[ch][k].x, p.curve[ch][k].y);
if(p.channel == DT_IOP_COLORZONES_h)
dt_draw_curve_set_point(g->minmax_curve[ch], bands + 1,
p.curve[ch][1].x + 1.f, p.curve[ch][1].y);
else
dt_draw_curve_set_point(g->minmax_curve[ch], bands + 1,
p.curve[ch][1].x + 1.f, p.curve[ch][bands - 1].y);
dt_draw_curve_calc_values(g->minmax_curve[ch], 0.f, 1.f,
DT_IOP_COLORZONES_RES, NULL, g->draw_min_ys);
}
else
{
for(int k = 0; k < bands; k++)
dt_draw_curve_set_point(g->minmax_curve[ch], k,
p.curve[ch][k].x, p.curve[ch][k].y);
dt_draw_curve_calc_values_V2(g->minmax_curve[ch], 0.f, 1.f,
DT_IOP_COLORZONES_RES, NULL, g->draw_min_ys,
p.channel == DT_IOP_COLORZONES_h);
}
p = *(dt_iop_colorzones_params_t *)self->params;
dt_iop_colorzones_get_params(&p, g, g->channel, g->mouse_x, .0, g->mouse_radius);
if(p.splines_version == DT_IOP_COLORZONES_SPLINES_V1)
{
if(p.channel == DT_IOP_COLORZONES_h)
dt_draw_curve_set_point(g->minmax_curve[ch], 0,
p.curve[ch][bands - 2].x - 1.f, p.curve[ch][bands - 2].y);
else
dt_draw_curve_set_point(g->minmax_curve[ch], 0,
p.curve[ch][bands - 2].x - 1.f, p.curve[ch][0].y);
for(int k = 0; k < bands; k++)
dt_draw_curve_set_point(g->minmax_curve[ch], k + 1,
p.curve[ch][k].x, p.curve[ch][k].y);
if(p.channel == DT_IOP_COLORZONES_h)
dt_draw_curve_set_point(g->minmax_curve[ch], bands + 1,
p.curve[ch][1].x + 1.f, p.curve[ch][1].y);
else
dt_draw_curve_set_point(g->minmax_curve[ch], bands + 1,
p.curve[ch][1].x + 1.f, p.curve[ch][bands - 1].y);
dt_draw_curve_calc_values(g->minmax_curve[ch], 0.f, 1.f,
DT_IOP_COLORZONES_RES, NULL, g->draw_max_ys);
}
else
{
for(int k = 0; k < bands; k++)
dt_draw_curve_set_point(g->minmax_curve[ch], k,
p.curve[ch][k].x, p.curve[ch][k].y);
dt_draw_curve_calc_values_V2(g->minmax_curve[ch], 0.f, 1.f,
DT_IOP_COLORZONES_RES, NULL, g->draw_max_ys,
p.channel == DT_IOP_COLORZONES_h);
}
// restore params values
p = *(dt_iop_colorzones_params_t *)self->params;
// draw min/max curves:
cairo_set_source_rgba(cr, .7, .7, .7, .6);
cairo_move_to(cr, 0, -height * _curve_to_mouse(g->draw_min_ys[0],
g->zoom_factor, g->offset_y));
for(int k = 1; k < DT_IOP_COLORZONES_RES; k++)
{
const float xx = (float)k / (float)(DT_IOP_COLORZONES_RES - 1);
const float yy = g->draw_min_ys[k];
const float x = _curve_to_mouse(xx, g->zoom_factor, g->offset_x),
y = _curve_to_mouse(yy, g->zoom_factor, g->offset_y);
cairo_line_to(cr, x * width, -height * y);
}
for(int k = DT_IOP_COLORZONES_RES - 1; k >= 0; k--)
{
const float xx = (float)k / (float)(DT_IOP_COLORZONES_RES - 1);
const float yy = g->draw_max_ys[k];
const float x = _curve_to_mouse(xx, g->zoom_factor, g->offset_x),
y = _curve_to_mouse(yy, g->zoom_factor, g->offset_y);
cairo_line_to(cr, x * width, -height * y);
}
cairo_close_path(cr);
cairo_fill(cr);
// draw mouse focus circle
cairo_set_source_rgba(cr, .9, .9, .9, .5);
const int k = DT_IOP_COLORZONES_RES * _mouse_to_curve(g->mouse_x,
g->zoom_factor, g->offset_x);
const float x = g->mouse_x, y = _curve_to_mouse(g->draw_ys[ch][k],
g->zoom_factor, g->offset_y);
cairo_arc(cr, x * width, -height * y, g->mouse_radius * width, 0, 2. * M_PI);
cairo_stroke(cr);
}
else
{
// draw selected cursor
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(1.));
if(g->selected >= 0)
{
cairo_set_source_rgb(cr, .9, .9, .9);
const float x = _curve_to_mouse(p.curve[g->channel][g->selected].x,
g->zoom_factor, g->offset_x),
y = _curve_to_mouse(p.curve[g->channel][g->selected].y,
g->zoom_factor, g->offset_y);
cairo_arc(cr, x * width, -y * height, DT_PIXEL_APPLY_DPI(4), 0, 2. * M_PI);
cairo_stroke(cr);
}
}
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_destroy(cr);
cairo_set_source_surface(crf, cst, 0, 0);
cairo_paint(crf);
cairo_surface_destroy(cst);
return FALSE;
}
static gboolean _bottom_area_draw_callback(GtkWidget *widget,
cairo_t *crf,
dt_iop_module_t *self)
{
dt_iop_colorzones_gui_data_t *g = self->gui_data;
dt_iop_colorzones_params_t p = *(dt_iop_colorzones_params_t *)self->params;
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
const int inset = DT_IOP_COLORZONES_INSET;
int width = allocation.width, height = allocation.height;
cairo_surface_t *cst = dt_cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
cairo_t *cr = cairo_create(cst);
// clear bg, match color of the notebook tabs:
GdkRGBA color;
GtkStyleContext *context = gtk_widget_get_style_context(widget);
const gboolean color_found = gtk_style_context_lookup_color
(context, "graph_overlay", &color);
if(!color_found)
{
color.red = 1.0;
color.green = 0.0;
color.blue = 0.0;
color.alpha = 1.0;
}
gdk_cairo_set_source_rgba(cr, &color);
cairo_paint(cr);
cairo_translate(cr, inset, inset);
width -= 2 * inset;
height -= 2 * inset;
cairo_set_line_width(cr, DT_PIXEL_APPLY_DPI(1.0));
cairo_set_source_rgb(cr, .1, .1, .1);
cairo_rectangle(cr, 0, 0, width, height);
cairo_stroke(cr);
cairo_set_source_rgb(cr, .3, .3, .3);
cairo_rectangle(cr, 0, 0, width, height);
cairo_fill(cr);
// if color picker is active we use it as base color
// otherwise we use a light blue
// we will work on LCh
dt_aligned_pixel_t picked_color, picker_min, picker_max;
_select_base_display_color(self, picked_color, picker_min, picker_max);
const float normalize_C = (128.f * M_SQRT2_F);
cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE);
const int cellsi = DT_COLORZONES_CELLSI;
for(int i = 0; i < cellsi; i++)
{
const float ii = _mouse_to_curve(((float)i + .5f) / (float)(cellsi - 1),
g->zoom_factor, g->offset_x);
const float iih = _mouse_to_curve((float)i / (float)(cellsi - 1),
g->zoom_factor, g->offset_x);
dt_aligned_pixel_t LCh;
switch(p.channel)
{
// select by channel, abscissa:
case DT_IOP_COLORZONES_L:
LCh[0] = 100.0f * ii;
LCh[1] = normalize_C * .5f;
LCh[2] = picked_color[2];
break;
case DT_IOP_COLORZONES_C:
LCh[0] = 50.0f;
LCh[1] = picked_color[1] * 2.f * ii;
LCh[2] = picked_color[2];
break;
default: // DT_IOP_COLORZONES_h
LCh[0] = 50.0f;
LCh[1] = normalize_C * .5f;
LCh[2] = iih;
break;
}
COLORZONES_DRAW_BACKGROUD_BOX
cairo_rectangle(cr, width * i / (float)cellsi, 0, width / (float)cellsi, height);
cairo_fill(cr);
}
cairo_set_antialias(cr, CAIRO_ANTIALIAS_DEFAULT);
if(self->enabled)
{
_draw_color_picker(self, cr, &p, g, width, height,
picked_color, picker_min, picker_max);
}
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_destroy(cr);
cairo_set_source_surface(crf, cst, 0, 0);
cairo_paint(crf);
cairo_surface_destroy(cst);
return TRUE;
}
#undef COLORZONES_DRAW_BACKGROUD_BOX
#undef DT_COLORZONES_CELLSI
#undef DT_COLORZONES_CELLSJ
static void _bottom_area_button_press_callback(GtkGestureSingle *gesture,
gint n_press,
gdouble x,
gdouble y,
dt_iop_module_t *self)
{
dt_iop_colorzones_gui_data_t *g = self->gui_data;
if(gtk_gesture_single_get_current_button(gesture) == GDK_BUTTON_PRIMARY && n_press >= 2)
{
// reset zoom level
g->zoom_factor = 1.f;
g->offset_x = g->offset_y = 0.f;
gtk_widget_queue_draw(GTK_WIDGET(g->area));
}
}
static gboolean _sanity_check(const float x,
const int selected,
const int nodes,
const dt_iop_colorzones_node_t *curve)
{
gboolean point_valid = TRUE;
// check if it is not too close to other node
const float min_dist = DT_IOP_COLORZONES_MIN_X_DISTANCE; // in curve coordinates
if((selected > 0 && x - curve[selected - 1].x <= min_dist)
|| (selected < nodes - 1 && curve[selected + 1].x - x <= min_dist))
point_valid = FALSE;
// for all points, x coordinate of point must be strictly larger than
// the x coordinate of the previous point
if((selected > 0
&& (curve[selected - 1].x >= x))
|| (selected < nodes - 1
&& (curve[selected + 1].x <= x)))
{
point_valid = FALSE;
}
return point_valid;
}
static gboolean _move_point_internal(dt_iop_module_t *self,
GtkWidget *widget,
const int node,
float dx,
float dy,
const guint state)
{
dt_iop_colorzones_params_t *p = self->params;
dt_iop_colorzones_gui_data_t *g = self->gui_data;
int ch = g->channel;
dt_iop_colorzones_node_t *curve = p->curve[ch];
float multiplier = dt_accel_get_speed_multiplier(widget, state);
dx *= multiplier;
dy *= multiplier;
if(p->splines_version == DT_IOP_COLORZONES_SPLINES_V1)
// do not move the first or last nodes on the x-axis
if(node == 0 || node == p->curve_num_nodes[ch] - 1) dx = 0.f;
float new_x = CLAMP(curve[node].x + dx, 0.0f, 1.0f);
const float new_y = CLAMP(curve[node].y + dy, 0.0f, 1.0f);
if(_sanity_check(new_x, node, p->curve_num_nodes[ch], p->curve[ch]))
{
if(p->splines_version == DT_IOP_COLORZONES_SPLINES_V1)
{
curve[node].x = new_x;
curve[node].y = new_y;
if(p->channel == DT_IOP_COLORZONES_h
&& (node == 0 || node == p->curve_num_nodes[ch] - 1))
{
if(node == 0)
{
curve[p->curve_num_nodes[ch] - 1].x = 1.f - curve[node].x;
curve[p->curve_num_nodes[ch] - 1].y = curve[node].y;
}
else
{
curve[0].x = 1.f - curve[node].x;
curve[0].y = curve[node].y;
}
}
}
else
{
if(p->channel == DT_IOP_COLORZONES_h
&& (node == 0 || node == p->curve_num_nodes[ch] - 1))
{
if(node == 0)
{
if(new_x + 1.f - curve[p->curve_num_nodes[ch] - 1].x
< DT_IOP_COLORZONES_MIN_X_DISTANCE)
new_x = curve[p->curve_num_nodes[ch] - 1].x
+ DT_IOP_COLORZONES_MIN_X_DISTANCE - 1.f;
}
else
{
if(curve[0].x + 1.f - new_x < DT_IOP_COLORZONES_MIN_X_DISTANCE)
new_x = curve[0].x + 1.f - DT_IOP_COLORZONES_MIN_X_DISTANCE;
}
}
curve[node].x = new_x;
curve[node].y = new_y;
}
dt_dev_add_history_item_target(darktable.develop, self, TRUE, widget + ch);
}
gtk_widget_queue_draw(widget);
return TRUE;
}
static void _delete_node(dt_iop_module_t *self,
dt_iop_colorzones_node_t *curve,
int *nodes,
const int node,
const gboolean zero)
{
dt_iop_colorzones_gui_data_t *g = self->gui_data;
if(zero)
{
curve[node].y = 0.5f;
}
else
{
// for p->splines_version == DT_IOP_COLORZONES_SPLINES_V1 condition nodes > 1 always true
if(*nodes > 1)
{
for(int k = node; k < *nodes - 1; k++)
{
curve[k].x = curve[k + 1].x;
curve[k].y = curve[k + 1].y;
}
curve[*nodes - 1].x = curve[*nodes - 1].y = 0;
(*nodes)--;
}
else
{
curve[0].x = 0.5f;
curve[0].y = 0.5f;
}
}
dt_iop_color_picker_reset(self, TRUE);
gtk_widget_queue_draw(GTK_WIDGET(g->area));
dt_dev_add_history_item(darktable.develop, self, TRUE);
}
static inline int _add_node(dt_iop_colorzones_node_t *curve,
int *nodes,
const float x,
const float y)
{
int selected = -1;
if(curve[0].x > x)
selected = 0;
else
{
for(int k = 1; k < *nodes; k++)
{
if(curve[k].x > x)
{
selected = k;
break;
}
}
}
if(selected == -1) selected = *nodes;
// check if it is not too close to other node
const float min_dist = DT_IOP_COLORZONES_MIN_X_DISTANCE; // in curve coordinates
if((selected > 0 && x - curve[selected - 1].x <= min_dist)
|| (selected < *nodes && curve[selected].x - x <= min_dist))
selected = -2;
if(selected >= 0)
{
for(int i = *nodes; i > selected; i--)
{
curve[i].x = curve[i - 1].x;
curve[i].y = curve[i - 1].y;
}
// found a new point
curve[selected].x = x;
curve[selected].y = y;
(*nodes)++;
}
return selected;
}
static void _area_scrolled_callback(GtkEventControllerScroll *controller,
gdouble dx,
gdouble dy,
dt_iop_module_t *self)
{
GtkWidget *widget = dt_gui_get_widget(controller);
dt_iop_colorzones_gui_data_t *g = self->gui_data;
dt_iop_colorzones_params_t *p = self->params;
if(dy == 0.0) return;
if(dt_modifier_is(dt_key_modifier_state(), GDK_MOD1_MASK))
{
// alt+scroll switches the channel tab (as before the controller conversion)
dt_gui_forward_scroll(controller, GTK_WIDGET(g->channel_tabs));
return;
}
if(darktable.develop->darkroom_skip_mouse_events)
{
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
const float mx = g->mouse_x;
const float my = g->mouse_y;
const float linx = _mouse_to_curve(mx, g->zoom_factor, g->offset_x),
liny = _mouse_to_curve(my, g->zoom_factor, g->offset_y);
g->zoom_factor *= 1.0 - 0.1 * dy;
if(g->zoom_factor < 1.f) g->zoom_factor = 1.f;
g->offset_x = linx - (mx / g->zoom_factor);
g->offset_y = liny - (my / g->zoom_factor);
g->offset_x = CLAMP(g->offset_x, 0.f, (g->zoom_factor - 1.f) / g->zoom_factor);
g->offset_y = CLAMP(g->offset_y, 0.f, (g->zoom_factor - 1.f) / g->zoom_factor);
gtk_widget_queue_draw(GTK_WIDGET(g->area));
return;
}
if(g->selected < 0 && !g->edit_by_area) return;
dt_iop_color_picker_reset(self, TRUE);
if(g->edit_by_area)
{
const int bands = p->curve_num_nodes[g->channel];
g->mouse_radius = CLAMP(g->mouse_radius * (1.0 - 0.1 * dy), 0.2 / bands, 1.0);
gtk_widget_queue_draw(widget);
}
else
{
dy *= -DT_IOP_COLORZONES_DEFAULT_STEP;
_move_point_internal(self, widget, g->selected, 0.f, dy, dt_key_modifier_state());
gtk_widget_queue_draw(widget);
}
}
static void _area_motion_notify_callback(GtkEventControllerMotion *controller,
gdouble x,
gdouble y,
dt_iop_module_t *self)
{
GtkWidget *widget = dt_gui_get_widget(controller);
dt_iop_colorzones_gui_data_t *g = self->gui_data;
dt_iop_colorzones_params_t *p = self->params;
const int inset = DT_IOP_COLORZONES_INSET;
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
const int height = allocation.height - 2 * inset;
const int width = allocation.width - 2 * inset;
// drag the draw area
if(darktable.develop->darkroom_skip_mouse_events)
{
const float mx = g->mouse_x;
const float my = g->mouse_y;
g->mouse_x = CLAMP(x - inset, 0, width) / (float)width;
g->mouse_y = 1.0 - CLAMP(y - inset, 0, height) / (float)height;
if(dt_key_modifier_state() & GDK_BUTTON1_MASK)
{
g->offset_x += (mx - g->mouse_x) / g->zoom_factor;
g->offset_y += (my - g->mouse_y) / g->zoom_factor;
g->offset_x = CLAMP(g->offset_x, 0.f, (g->zoom_factor - 1.f) / g->zoom_factor);
g->offset_y = CLAMP(g->offset_y, 0.f, (g->zoom_factor - 1.f) / g->zoom_factor);
gtk_widget_queue_draw(GTK_WIDGET(g->area));
}
}
const int ch = g->channel;
const int nodes = p->curve_num_nodes[ch];
dt_iop_colorzones_node_t *curve = p->curve[ch];
const double old_m_x = g->mouse_x;
const double old_m_y = fabs(g->mouse_y);
g->mouse_x = CLAMP(x - inset, 0, width) / (float)width;
g->mouse_y = 1.0 - CLAMP(y - inset, 0, height) / (float)height;
darktable.control->element =
(int)(8.0 *
_mouse_to_curve(g->mouse_x,
g->zoom_factor, g->offset_x) + 0.5f) % 8;
// move a node
if(dt_key_modifier_state() & GDK_BUTTON1_MASK)
{
if(g->edit_by_area)
{
if(g->dragging && g->x_move >= 0)
g->selected = g->x_move;
else
g->selected = -1;
}
// got a vertex selected:
if(g->selected >= 0)
{
// this is used to translate mause position in zoom_factor to make this behavior unified with linear scale.
const float translate_mouse_x = old_m_x - _curve_to_mouse(curve[g->selected].x,
g->zoom_factor,
g->offset_x);
const float translate_mouse_y = old_m_y - _curve_to_mouse(curve[g->selected].y,
g->zoom_factor,
g->offset_y);
// dx & dy are in linear coordinates
const float dx = _mouse_to_curve(g->mouse_x - translate_mouse_x,
g->zoom_factor, g->offset_x)
- _mouse_to_curve(old_m_x - translate_mouse_x,
g->zoom_factor, g->offset_x);
const float dy = _mouse_to_curve(g->mouse_y - translate_mouse_y,
g->zoom_factor, g->offset_y)
- _mouse_to_curve(old_m_y - translate_mouse_y,
g->zoom_factor, g->offset_y);
dt_iop_color_picker_reset(self, TRUE);
_move_point_internal(self, widget, g->selected, dx, dy, dt_key_modifier_state());
}
}
if(g->edit_by_area)
{
if(g->dragging)
{
if(g->x_move < 0)
{
dt_iop_colorzones_get_params(p, g, g->channel,
g->mouse_x, g->mouse_y, g->mouse_radius);
dt_iop_color_picker_reset(self, TRUE);
dt_dev_add_history_item_target(darktable.develop, self, TRUE, widget + ch);
}
}
else if(y > height)
{
g->x_move = 0;
const int bands = p->curve_num_nodes[g->channel];
const float mouse_x = _mouse_to_curve(g->mouse_x, g->zoom_factor, g->offset_x);
float dist = fabsf(p->curve[g->channel][0].x - mouse_x);
for(int k = 1; k < bands; k++)
{
const float d2 = fabsf(p->curve[g->channel][k].x - mouse_x);
if(d2 < dist)
{
g->x_move = k;
dist = d2;
}
}
}
else
{
g->x_move = -1;
}
}
else
{
if(dt_key_modifier_state() & GDK_BUTTON1_MASK)
{
if(nodes < DT_IOP_COLORZONES_MAXNODES && g->selected == -1)
{
const float linx = _mouse_to_curve(g->mouse_x, g->zoom_factor, g->offset_x),
liny = _mouse_to_curve(g->mouse_y, g->zoom_factor, g->offset_y);
// no vertex was close, create a new one!
g->selected = _add_node(curve, &p->curve_num_nodes[ch], linx, liny);
dt_iop_color_picker_reset(self, TRUE);
dt_dev_add_history_item_target(darktable.develop, self, TRUE, widget + ch);
}
}
else
{
const float mx = g->mouse_x;
const float my = g->mouse_y;
// minimum area around the node to select it:
float min = .04f * .04f; // comparing against square
int nearest = -1;
for(int k = 0; k < nodes; k++)
{
float dist = (my - _curve_to_mouse(curve[k].y,
g->zoom_factor, g->offset_y))
* (my - _curve_to_mouse(curve[k].y,
g->zoom_factor, g->offset_y))
+ (mx - _curve_to_mouse(curve[k].x, g->zoom_factor, g->offset_x))
* (mx - _curve_to_mouse(curve[k].x,
g->zoom_factor, g->offset_x));
if(dist < min)
{
min = dist;
nearest = k;
}
}
g->selected = nearest;
}
if(g->selected >= 0) gtk_widget_grab_focus(widget);
}
gtk_widget_queue_draw(widget);
}
static void _area_button_press_callback(GtkGestureSingle *gesture,
gint n_press,
gdouble x,
gdouble y,
dt_iop_module_t *self)
{
GtkWidget *widget = dt_gui_get_widget(gesture);
dt_iop_colorzones_gui_data_t *g = self->gui_data;
dt_iop_colorzones_params_t *p = self->params;
const dt_iop_colorzones_params_t *const d = self->default_params;
if(darktable.develop->darkroom_skip_mouse_events) return;
int ch = g->channel;
int nodes = p->curve_num_nodes[ch];
dt_iop_colorzones_node_t *curve = p->curve[ch];
if(gtk_gesture_single_get_current_button(gesture) == GDK_BUTTON_PRIMARY)
{
if(g->edit_by_area && n_press < 2
&& !dt_modifier_is(dt_key_modifier_state(), GDK_CONTROL_MASK))
{
g->dragging = 1;
}
else if(n_press >= 1
&& dt_modifier_is(dt_key_modifier_state(), GDK_CONTROL_MASK)
&& nodes < DT_IOP_COLORZONES_MAXNODES
&& (g->selected == -1 || g->edit_by_area))
{
// if we are not on a node -> add a new node at the current x of
// the pointer and y of the curve at that x
const int inset = DT_IOP_COLORZONES_INSET;
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
const int height = allocation.height - 2 * inset;
const int width = allocation.width - 2 * inset;
g->mouse_x = CLAMP(x - inset, 0, width) / (float)width;
g->mouse_y = 1.0 - CLAMP(y - inset, 0, height) / (float)height;
const float mx = _mouse_to_curve(g->mouse_x, g->zoom_factor, g->offset_x);
// don't add a node too close to others in x direction, it can crash dt
int selected = -1;
if(curve[0].x > mx)
selected = 0;
else
{
for(int k = 1; k < nodes; k++)
{
if(curve[k].x > mx)
{
selected = k;
break;
}
}
}
if(selected == -1) selected = nodes;
// evaluate the curve at the current x position
const float curve_y = dt_draw_curve_calc_value(g->minmax_curve[ch], mx);
if(y >= 0.0f && y <= 1.0f) // never add something outside the
// viewport, you couldn't change it
// afterwards
{
// create a new node
selected = _add_node(curve, &p->curve_num_nodes[ch], mx, curve_y);
// maybe set the new one as being selected
const float min = .04f * .04f; // comparing against square
for(int k = 0; k < nodes; k++)
{
const float other_y = _curve_to_mouse(curve[k].y, g->zoom_factor, g->offset_y);
const float dist = (y - other_y) * (y - other_y);
if(dist < min) g->selected = selected;
}
dt_iop_color_picker_reset(self, TRUE);
dt_dev_add_history_item_target(darktable.develop, self, TRUE, widget + ch);
gtk_widget_queue_draw(GTK_WIDGET(g->area));
}
}
else if(n_press >= 2)
{
// reset current curve
p->curve_num_nodes[ch] = d->curve_num_nodes[ch];
p->curve_type[ch] = d->curve_type[ch];
_reset_nodes(p, g->channel,
p->splines_version == DT_IOP_COLORZONES_SPLINES_V1
|| p->channel != DT_IOP_COLORZONES_h);
g->selected = -2; // avoid motion notify re-inserting immediately.
dt_bauhaus_combobox_set(g->interpolator, p->curve_type[ch]);
dt_iop_color_picker_reset(self, TRUE);
dt_dev_add_history_item_target(darktable.develop, self, TRUE, widget + ch);
gtk_widget_queue_draw(GTK_WIDGET(g->area));
}
}
else if(gtk_gesture_single_get_current_button(gesture) == GDK_BUTTON_SECONDARY && g->selected >= 0)
{
// consume the event so it does not bubble to the module body's
// right-click handler (which opens the presets menu)
dt_gui_claim(gesture);
if((g->selected == 0 || g->selected == nodes - 1)
&& p->splines_version == DT_IOP_COLORZONES_SPLINES_V1)
{
if(p->channel == DT_IOP_COLORZONES_h)
{
curve[0].y = 0.5f;
curve[0].x = 0.f;
curve[nodes - 1].y = 0.5f;
curve[nodes - 1].x = 1.f;
}
else
{
const float reset_value = g->selected == 0 ? 0.f : 1.f;
curve[g->selected].y = 0.5f;
curve[g->selected].x = reset_value;
}
dt_iop_color_picker_reset(self, TRUE);
gtk_widget_queue_draw(GTK_WIDGET(g->area));
dt_dev_add_history_item_target(darktable.develop, self, TRUE, widget + ch);
return; // an endpoint reset must not fall through into node removal
}
// right click deletes the node, ctrl+right click reset the node to y-zero
_delete_node(self, curve, &p->curve_num_nodes[ch],
g->selected, dt_modifier_is(dt_key_modifier_state(), GDK_CONTROL_MASK));
g->selected = -2; // avoid re-insertion of that point immediately after this
}
}
static void _area_button_release_callback(GtkGestureSingle *gesture,
gint n_press,
gdouble x,
gdouble y,
dt_iop_module_t *self)
{
if(darktable.develop->darkroom_skip_mouse_events) return;
if(gtk_gesture_single_get_current_button(gesture) == GDK_BUTTON_PRIMARY)
{
dt_iop_colorzones_gui_data_t *g = self->gui_data;
g->dragging = 0;
}
}
static void _area_leave_notify_callback(GtkEventControllerMotion *controller,
dt_iop_module_t *self)
{
if(darktable.develop->darkroom_skip_mouse_events) return;
dt_iop_colorzones_gui_data_t *g = self->gui_data;
// for fluxbox
g->mouse_y = -fabs(g->mouse_y);
if(!(dt_key_modifier_state() & GDK_BUTTON1_MASK))
g->selected = -1;
gtk_widget_queue_draw(dt_gui_get_widget(controller));
}
static gboolean _area_key_press_callback(GtkEventControllerKey *controller,
guint keyval,
guint keycode,
GdkModifierType state,
dt_iop_module_t *self)
{
GtkWidget *widget = dt_gui_get_widget(controller);
dt_iop_colorzones_gui_data_t *g = self->gui_data;
if(darktable.develop->darkroom_skip_mouse_events) return FALSE;
if(g->selected < 0) return FALSE;
int handled = 0;
float dx = 0.0f, dy = 0.0f;
if(keyval == GDK_KEY_Up || keyval == GDK_KEY_KP_Up)
{
handled = 1;
dy = DT_IOP_COLORZONES_DEFAULT_STEP;
}
else if(keyval == GDK_KEY_Down || keyval == GDK_KEY_KP_Down)
{
handled = 1;
dy = -DT_IOP_COLORZONES_DEFAULT_STEP;
}
else if(keyval == GDK_KEY_Right || keyval == GDK_KEY_KP_Right)
{
handled = 1;
dx = DT_IOP_COLORZONES_DEFAULT_STEP;
}
else if(keyval == GDK_KEY_Left || keyval == GDK_KEY_KP_Left)
{
handled = 1;
dx = -DT_IOP_COLORZONES_DEFAULT_STEP;
}
if(!handled) return FALSE;
dt_iop_color_picker_reset(self, TRUE);
return _move_point_internal(self, widget, g->selected, dx, dy, dt_key_modifier_state());
}
static void _channel_tabs_switch_callback(GtkNotebook *notebook,
GtkWidget *page,
const guint page_num,
dt_iop_module_t *self)
{
DT_GUARD_GUI_UPDATE();
dt_iop_colorzones_gui_data_t *g = self->gui_data;
dt_iop_colorzones_params_t *p = self->params;
g->channel = (dt_iop_colorzones_channel_t)page_num;
DT_ENTER_GUI_UPDATE();
dt_bauhaus_combobox_set(g->interpolator, p->curve_type[g->channel]);
DT_LEAVE_GUI_UPDATE();
dt_iop_color_picker_reset(self, TRUE);
if(g->display_mask)
dt_iop_refresh_center(self);
gtk_widget_queue_draw(GTK_WIDGET(g->area));
}
void gui_changed(dt_iop_module_t *self,
GtkWidget *w,
void *previous)
{
dt_iop_colorzones_params_t *p = self->params;
dt_iop_colorzones_gui_data_t *g = self->gui_data;
if(w == g->select_by)
{
_reset_parameters(p, p->channel, p->splines_version);
dt_iop_gui_enter_critical_section(self);
const gboolean display_mask = g && g->display_mask;
dt_iop_gui_leave_critical_section(self);
if(display_mask) _reset_display_selection(self);
gtk_widget_queue_draw(GTK_WIDGET(g->area));
gtk_widget_queue_draw(GTK_WIDGET(g->bottom_area));
}
}
static void _interpolator_callback(GtkWidget *widget,
dt_iop_module_t *self)
{
DT_GUARD_GUI_UPDATE();
dt_iop_colorzones_params_t *p = self->params;
dt_iop_colorzones_gui_data_t *g = self->gui_data;
const int combo = dt_bauhaus_combobox_get(widget);
if(combo == 0)
p->curve_type[g->channel] = CUBIC_SPLINE;
else if(combo == 1)
p->curve_type[g->channel] = CATMULL_ROM;
else if(combo == 2)
p->curve_type[g->channel] = MONOTONE_HERMITE;
dt_iop_color_picker_reset(self, TRUE);
dt_dev_add_history_item_target(darktable.develop, self, TRUE, widget);
gtk_widget_queue_draw(GTK_WIDGET(g->area));
}
static void _edit_by_area_callback(GtkWidget *widget,
dt_iop_module_t *self)
{
DT_GUARD_GUI_UPDATE();
dt_iop_colorzones_gui_data_t *g = self->gui_data;
g->edit_by_area = dt_bauhaus_toggle_get(widget);
gtk_widget_queue_draw(GTK_WIDGET(g->area));
}
static void _display_mask_callback(GtkToggleButton *togglebutton,
dt_iop_module_t *self)
{
DT_GUARD_GUI_UPDATE();
dt_iop_colorzones_gui_data_t *g = self->gui_data;
// if blend module is displaying mask do not display it here
dt_iop_gui_enter_critical_section(self);
gboolean display_mask = g->display_mask;
dt_iop_gui_leave_critical_section(self);
if(self->request_mask_display && !display_mask)
{
dt_control_log(_("cannot display masks when the blending mask is displayed"));
DT_ENTER_GUI_UPDATE();
gtk_toggle_button_set_active(togglebutton, FALSE);
DT_LEAVE_GUI_UPDATE();
return;
}
const gboolean is_toggle = gtk_toggle_button_get_active(togglebutton);
dt_iop_gui_enter_critical_section(self);
g->display_mask = is_toggle;
dt_iop_gui_leave_critical_section(self);
if(self->off) gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(self->off), 1);
dt_iop_request_focus(self);
dt_iop_refresh_center(self);
}
void color_picker_apply(dt_iop_module_t *self,
GtkWidget *picker,
dt_dev_pixelpipe_t *pipe)
{
dt_iop_colorzones_gui_data_t *g = self->gui_data;
if(picker == g->colorpicker_set_values)
{
dt_iop_colorzones_params_t *p = self->params;
const dt_iop_colorzones_params_t *const d = self->default_params;
dt_iop_gui_enter_critical_section(self);
const int ch_curve = g->channel;
const int ch_val = p->channel;
dt_iop_gui_leave_critical_section(self);
dt_iop_colorzones_node_t *curve = p->curve[ch_curve];
// reset current curve
p->curve_num_nodes[ch_curve] = d->curve_num_nodes[ch_curve];
p->curve_type[ch_curve] = d->curve_type[ch_curve];
for(int k = 0; k < DT_IOP_COLORZONES_MAXNODES; k++)
{
curve[k].x = d->curve[ch_curve][k].x;
curve[k].y = d->curve[ch_curve][k].y;
}
const GdkModifierType state = dt_key_modifier_state();
int picker_set_upper_lower; // flat=0, lower=-1, upper=1
if(dt_modifier_is(state, GDK_CONTROL_MASK))
picker_set_upper_lower = 1;
else if(dt_modifier_is(state, GDK_SHIFT_MASK))
picker_set_upper_lower = -1;
else
picker_set_upper_lower = 0;
// now add 5 nodes: feather, min, center, max, feather
const float feather = 0.02f;
const float increment = 0.1f * picker_set_upper_lower;
float x = 0.f;
if(ch_val == DT_IOP_COLORZONES_L)
x = self->picked_color_min[0] / 100.f;
else if(ch_val == DT_IOP_COLORZONES_C)
x = self->picked_color_min[1] / (128.f * M_SQRT2_F);
else if(ch_val == DT_IOP_COLORZONES_h)
x = self->picked_color_min[2];
x -= feather;
if(x > 0.f && x < 1.f) _add_node(curve, &p->curve_num_nodes[ch_curve], x, .5f);
if(ch_val == DT_IOP_COLORZONES_L)
x = self->picked_color_min[0] / 100.f;
else if(ch_val == DT_IOP_COLORZONES_C)
x = self->picked_color_min[1] / (128.f * M_SQRT2_F);
else if(ch_val == DT_IOP_COLORZONES_h)
x = self->picked_color_min[2];
if(x > 0.f && x < 1.f) _add_node(curve, &p->curve_num_nodes[ch_curve],
x, .5f + increment);
if(ch_val == DT_IOP_COLORZONES_L)
x = self->picked_color[0] / 100.f;
else if(ch_val == DT_IOP_COLORZONES_C)
x = self->picked_color[1] / (128.f * M_SQRT2_F);
else if(ch_val == DT_IOP_COLORZONES_h)
x = self->picked_color[2];
if(x > 0.f && x < 1.f) _add_node(curve, &p->curve_num_nodes[ch_curve],
x, .5f + 2.f * increment);
if(ch_val == DT_IOP_COLORZONES_L)
x = self->picked_color_max[0] / 100.f;
else if(ch_val == DT_IOP_COLORZONES_C)
x = self->picked_color_max[1] / (128.f * M_SQRT2_F);
else if(ch_val == DT_IOP_COLORZONES_h)
x = self->picked_color_max[2];
if(x > 0.f && x < 1.f) _add_node(curve, &p->curve_num_nodes[ch_curve],
x, .5f + increment);
if(ch_val == DT_IOP_COLORZONES_L)
x = self->picked_color_max[0] / 100.f;
else if(ch_val == DT_IOP_COLORZONES_C)
x = self->picked_color_max[1] / (128.f * M_SQRT2_F);
else if(ch_val == DT_IOP_COLORZONES_h)
x = self->picked_color_max[2];
x += feather;
if(x > 0.f && x < 1.f) _add_node(curve, &p->curve_num_nodes[ch_curve], x, .5f);
dt_dev_add_history_item(darktable.develop, self, TRUE);
}
dt_control_queue_redraw_widget(self->widget);
}
const dt_action_element_def_t _action_elements_zones[]
= { { N_("red" ), dt_action_effect_value },
{ N_("orange" ), dt_action_effect_value },
{ N_("yellow" ), dt_action_effect_value },
{ N_("green" ), dt_action_effect_value },
{ N_("aqua" ), dt_action_effect_value },
{ N_("blue" ), dt_action_effect_value },
{ N_("purple" ), dt_action_effect_value },
{ N_("magenta"), dt_action_effect_value },
{ NULL } };
static float _action_process_zones(gpointer target,
dt_action_element_t element,
dt_action_effect_t effect,
float move_size)
{
if(element >= DT_IOP_COLORZONES_BANDS) return DT_ACTION_NOT_VALID;
dt_iop_module_t *self = g_object_get_data(G_OBJECT(target), "iop-instance");
const dt_iop_colorzones_gui_data_t *g = self->gui_data;
dt_iop_colorzones_params_t *p = self->params;
dt_iop_gui_enter_critical_section(self);
const int ch = g ? g->channel : 0;
dt_iop_gui_leave_critical_section(self);
const int nodes = p->curve_num_nodes[ch];
dt_iop_colorzones_node_t *curve = p->curve[ch];
const float x = (float)element / DT_IOP_COLORZONES_BANDS;
gboolean close_enough = FALSE;
int node = 0;
while(node < nodes &&
!(close_enough = fabsf(curve[node].x - x) <= 1./16))
node++;
float return_value = close_enough
? curve[node].y
: dt_draw_curve_calc_value(g->minmax_curve[ch], x);
if(DT_PERFORM_ACTION(move_size))
{
float bottop = -1e6;
switch(effect)
{
case DT_ACTION_EFFECT_RESET:
if(close_enough)
_delete_node(self, curve, &p->curve_num_nodes[ch], node, FALSE);
break;
case DT_ACTION_EFFECT_BOTTOM:
bottop *= -1;
case DT_ACTION_EFFECT_TOP:
move_size = bottop;
case DT_ACTION_EFFECT_DOWN:
move_size *= -1;
case DT_ACTION_EFFECT_UP:
if(!close_enough)
node = _add_node(curve, &p->curve_num_nodes[ch], x, return_value);
_move_point_internal(self, target, node, 0.f, move_size / 100, GDK_MODIFIER_MASK);
return_value = curve[node].y;
break;
default:
dt_print(DT_DEBUG_ALWAYS,
"[_action_process_zones] unknown shortcut effect (%d) for color zones",
effect);
break;
}
gchar *text = g_strdup_printf
("%s %+.2f",
_action_elements_zones[element].name, return_value * 2. - 1.);
dt_action_widget_toast(DT_ACTION(self), target, text);
g_free(text);
}
return return_value + DT_VALUE_PATTERN_PLUS_MINUS;
}
const dt_action_def_t _action_def_zones
= { N_("color zones"),
_action_process_zones,
_action_elements_zones };
void gui_reset(dt_iop_module_t *self)
{
dt_iop_colorzones_gui_data_t *g = self->gui_data;
dt_iop_color_picker_reset(self, FALSE);
g->zoom_factor = 1.f;
g->offset_x = g->offset_y = 0.f;
g->selected = -1;
g->dragging = 0;
g->edit_by_area = 0;
g->display_mask = FALSE;
g->mouse_radius = 1.f / DT_IOP_COLORZONES_BANDS;
_reset_display_selection(self);
}
void gui_focus(dt_iop_module_t *self, gboolean in)
{
if(!in)
{
_reset_display_selection(self);
dt_iop_color_picker_reset(self, FALSE);
}
}
void gui_init(dt_iop_module_t *self)
{
dt_iop_colorzones_gui_data_t *g = IOP_GUI_ALLOC(colorzones);
const dt_iop_colorzones_params_t *const p = self->default_params;
self->histogram_cst = IOP_CS_LCH;
const int channel = dt_conf_get_int("plugins/darkroom/colorzones/gui_channel");
dt_iop_gui_enter_critical_section(self);
g->channel = channel;
for(int ch = 0; ch < DT_IOP_COLORZONES_MAX_CHANNELS; ch++)
{
g->minmax_curve[ch] = dt_draw_curve_new(0.f, 1.f, p->curve_type[ch]);
g->minmax_curve_nodes[ch] = p->curve_num_nodes[ch];
g->minmax_curve_type[ch] = p->curve_type[ch];
for(int k = 0; k < p->curve_num_nodes[ch]; k++)
dt_draw_curve_add_point(g->minmax_curve[ch], p->curve[ch][k].x, p->curve[ch][k].y);
}
g->mouse_x = g->mouse_y = -1.0;
g->selected = -1;
g->offset_x = g->offset_y = 0.f;
g->zoom_factor = 1.f;
g->x_move = -1;
g->mouse_radius = 1.f / DT_IOP_COLORZONES_BANDS;
g->dragging = 0;
g->edit_by_area = 0;
g->display_mask = FALSE;
dt_iop_gui_leave_critical_section(self);
// tabs
static dt_action_def_t notebook_def = { };
g->channel_tabs = dt_ui_notebook_new(¬ebook_def);
dt_action_define_iop(self, NULL, N_("channel"),
GTK_WIDGET(g->channel_tabs), ¬ebook_def);
dt_ui_notebook_page(g->channel_tabs, N_("lightness"), NULL);
dt_ui_notebook_page(g->channel_tabs, N_("chroma"), NULL);
dt_ui_notebook_page(g->channel_tabs, N_("hue"), NULL);
gtk_widget_show(gtk_notebook_get_nth_page(g->channel_tabs, channel));
gtk_notebook_set_current_page(g->channel_tabs, channel);
g_signal_connect(G_OBJECT(g->channel_tabs), "switch_page",
G_CALLBACK(_channel_tabs_switch_callback), self);
// color pickers
g->colorpicker = dt_color_picker_new_with_cst(self, DT_COLOR_PICKER_POINT_AREA,
NULL, IOP_CS_LCH);
gtk_widget_set_tooltip_text
(g->colorpicker,
_("pick GUI color from image\nctrl+click or right-click to select an area"));
gtk_widget_set_name(g->colorpicker, "keep-active");
dt_action_define_iop(self, N_("pickers"), N_("show color"),
g->colorpicker, &dt_action_def_color_picker);
g->colorpicker_set_values = dt_color_picker_new_with_cst(self,
DT_COLOR_PICKER_AREA,
NULL, IOP_CS_LCH);
dtgtk_togglebutton_set_paint(DTGTK_TOGGLEBUTTON(g->colorpicker_set_values),
dtgtk_cairo_paint_colorpicker_set_values, 0, NULL);
dt_gui_add_class(g->colorpicker_set_values, "dt_transparent_background");
gtk_widget_set_size_request(g->colorpicker_set_values,
DT_PIXEL_APPLY_DPI(14), DT_PIXEL_APPLY_DPI(14));
gtk_widget_set_tooltip_text(g->colorpicker_set_values,
_("create a curve based on an area from the image\n"
"drag to create a flat curve\n"
"ctrl+drag to create a positive curve\n"
"shift+drag to create a negative curve"));
dt_action_define_iop(self, N_("pickers"), N_("create curve"),
g->colorpicker_set_values, &dt_action_def_color_picker);
// the nice graph
g->area = GTK_DRAWING_AREA(dt_ui_resize_wrap(NULL,
0,
"plugins/darkroom/colorzones/graphheight"));
g->bottom_area = gtk_drawing_area_new();
gtk_widget_set_vexpand(g->bottom_area, TRUE);
GtkWidget *dabox = dt_gui_vbox(g->bottom_area);
gtk_widget_set_name(GTK_WIDGET(dabox), "iop-bottom-bar");
// edit by area
gchar *label = N_("edit by area");
// no field: this selects an editing mode for the curve widget below, it
// is not one of the module's parameters
g->chk_edit_by_area = dt_bauhaus_toggle_new(self);
dt_bauhaus_widget_set_label(g->chk_edit_by_area, NULL, label);
dt_bauhaus_widget_set_label_ellipsize(g->chk_edit_by_area, PANGO_ELLIPSIZE_START);
dt_bauhaus_toggle_set(g->chk_edit_by_area, g->edit_by_area);
gtk_widget_set_tooltip_text(g->chk_edit_by_area, _("edit the curve nodes by area"));
g_signal_connect(G_OBJECT(g->chk_edit_by_area), "value-changed",
G_CALLBACK(_edit_by_area_callback), self);
// display selection
g->bt_showmask = dtgtk_togglebutton_new_full(dtgtk_cairo_paint_showmask, 0, NULL,
&(dtgtk_button_config_t){
.tooltip = _("display selection"),
.toggled_cb = G_CALLBACK(_display_mask_callback),
.toggled_data = self,
});
dt_gui_add_class(g->bt_showmask, "dt_transparent_background");
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(g->bt_showmask), FALSE);
self->widget = dt_gui_vbox
(dt_gui_hbox(dt_gui_expand(g->channel_tabs), gtk_label_new(" "),
g->colorpicker, g->colorpicker_set_values),
g->area, dabox,
dt_gui_hbox(dt_gui_expand(g->chk_edit_by_area), g->bt_showmask));
// select by which dimension
g->select_by = dt_bauhaus_combobox_from_params(self, "channel");
gtk_widget_set_tooltip_text
(g->select_by,
_("choose selection criterion, will be the abscissa in the graph"));
g->mode = dt_bauhaus_combobox_from_params(self, "mode");
gtk_widget_set_tooltip_text(g->mode, _("choose between a smoother or stronger effect"));
g->strength = dt_bauhaus_slider_from_params(self, "strength");
dt_bauhaus_slider_set_format(g->strength, "%");
gtk_widget_set_tooltip_text(g->strength, _("make effect stronger or weaker"));
g_object_set_data(G_OBJECT(g->area), "iop-instance", self);
dt_action_define_iop(self, NULL, N_("graph"), GTK_WIDGET(g->area), &_action_def_zones);
gtk_widget_set_can_focus(GTK_WIDGET(g->area), TRUE);
g_signal_connect(G_OBJECT(g->area), "draw",
G_CALLBACK(_area_draw_callback), self);
gtk_widget_add_events(GTK_WIDGET(g->area),
GDK_POINTER_MOTION_MASK | GDK_BUTTON_PRESS_MASK
| GDK_BUTTON_RELEASE_MASK | GDK_KEY_PRESS_MASK
| GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK
| darktable.gui->scroll_mask);
dt_gui_connect_click(g->area, _area_button_press_callback, _area_button_release_callback, self);
dt_gui_connect_motion(g->area, _area_motion_notify_callback, NULL, _area_leave_notify_callback, self);
dt_gui_connect_scroll(g->area, GTK_EVENT_CONTROLLER_SCROLL_BOTH_AXES
| GTK_EVENT_CONTROLLER_SCROLL_DISCRETE,
_area_scrolled_callback, self);
dt_gui_connect_key(g->area, _area_key_press_callback, self);
g_signal_connect(G_OBJECT(g->bottom_area), "draw",
G_CALLBACK(_bottom_area_draw_callback), self);
gtk_widget_add_events(GTK_WIDGET(g->bottom_area), GDK_BUTTON_PRESS_MASK);
dt_gui_connect_click(g->bottom_area, _bottom_area_button_press_callback, NULL, self);
g->interpolator = dt_bauhaus_combobox_new_interpolation(self);
dt_gui_box_add(self->widget, g->interpolator);
gtk_widget_set_tooltip_text(g->interpolator,
_("change this method if you see oscillations or cusps in the curve\n"
"- cubic spline is better to produce smooth curves but oscillates when nodes are too close\n"
"- centripetal is better to avoids cusps and oscillations with close nodes but is less smooth\n"
"- monotonic is better for accuracy of pure analytical functions (log, gamma, exp)"));
g_signal_connect(G_OBJECT(g->interpolator), "value-changed",
G_CALLBACK(_interpolator_callback), self);
}
void gui_update(dt_iop_module_t *self)
{
dt_iop_colorzones_gui_data_t *g = self->gui_data;
dt_iop_colorzones_params_t *p = self->params;
// every GUI handler uses the stored count, and adding a node writes through it
for(int ch = 0; ch < DT_IOP_COLORZONES_MAX_CHANNELS; ch++)
p->curve_num_nodes[ch] = _colorzones_nodes(p, ch);
dt_bauhaus_combobox_set(g->interpolator, p->curve_type[g->channel]);
gtk_widget_queue_draw(GTK_WIDGET(g->area));
}
void gui_cleanup(dt_iop_module_t *self)
{
dt_iop_colorzones_gui_data_t *g = self->gui_data;
dt_conf_set_int("plugins/darkroom/colorzones/gui_channel", g->channel);
for(int ch = 0; ch < DT_IOP_COLORZONES_MAX_CHANNELS; ch++)
dt_draw_curve_destroy(g->minmax_curve[ch]);
}
void init_global(dt_iop_module_so_t *self)
{
const int program = 2; // basic.cl, from programs.conf
dt_iop_colorzones_global_data_t *gd = malloc(sizeof(dt_iop_colorzones_global_data_t));
self->data = gd;
gd->kernel_colorzones = dt_opencl_create_kernel(program, "colorzones");
gd->kernel_colorzones_v3 = dt_opencl_create_kernel(program, "colorzones_v3");
}
void cleanup_global(dt_iop_module_so_t *self)
{
dt_iop_colorzones_global_data_t *gd = self->data;
dt_opencl_free_kernel(gd->kernel_colorzones);
dt_opencl_free_kernel(gd->kernel_colorzones_v3);
free(self->data);
self->data = NULL;
}
void commit_params(dt_iop_module_t *self,
dt_iop_params_t *p1,
dt_dev_pixelpipe_t *pipe,
dt_dev_pixelpipe_iop_t *piece)
{
// pull in new params to pipe
dt_iop_colorzones_data_t *d = piece->data;
dt_iop_colorzones_params_t *p = (dt_iop_colorzones_params_t *)p1;
dt_iop_colorzones_gui_data_t *g = self->gui_data;
if(dt_pipe_is_preview(pipe))
piece->request_histogram |= DT_REQUEST_ON;
else
piece->request_histogram &= ~DT_REQUEST_ON;
#if 0 // print new preset
printf("p.channel = %d;\n", p->channel);
for(int k=0; k<3; k++) for(int i=0; i<DT_IOP_COLORZONES_MAXNODES; i++)
{
printf("p.curve[%d][%i].x = %f;\n", k, i, p->curve[k][i].x);
printf("p.curve[%d][%i].y = %f;\n", k, i, p->curve[k][i].y);
}
#endif
// display selection don't work with opencl
gboolean display_mask = FALSE;
if(self->dev->gui_attached && g && dt_pipe_is_full(piece->pipe))
{
dt_iop_gui_enter_critical_section(self);
display_mask = g->display_mask;
dt_iop_gui_leave_critical_section(self);
}
piece->process_cl_ready = !display_mask;
d->channel = (dt_iop_colorzones_channel_t)p->channel;
d->mode = p->mode;
if(p->splines_version == DT_IOP_COLORZONES_SPLINES_V1)
{
for(int ch = 0; ch < DT_IOP_COLORZONES_MAX_CHANNELS; ch++)
{
const int nodes = _colorzones_nodes(p, ch);
// take care of possible change of curve type or number of nodes
// (not yet implemented in UI)
if(d->curve_type[ch] != p->curve_type[ch]
|| d->curve_nodes[ch] != p->curve_num_nodes[ch])
{
dt_draw_curve_destroy(d->curve[ch]);
d->curve[ch] = dt_draw_curve_new(0.f, 1.f, p->curve_type[ch]);
d->curve_nodes[ch] = p->curve_num_nodes[ch];
d->curve_type[ch] = p->curve_type[ch];
if(d->channel == DT_IOP_COLORZONES_h)
dt_draw_curve_add_point(d->curve[ch],
p->curve[ch][nodes - 2].x - 1.f,
strength(p->curve[ch][nodes - 2].y,
p->strength));
else
dt_draw_curve_add_point(d->curve[ch],
p->curve[ch][nodes - 2].x - 1.f,
strength(p->curve[ch][0].y, p->strength));
for(int k = 0; k < nodes; k++)
dt_draw_curve_add_point(d->curve[ch], p->curve[ch][k].x,
strength(p->curve[ch][k].y, p->strength));
if(d->channel == DT_IOP_COLORZONES_h)
dt_draw_curve_add_point(d->curve[ch], p->curve[ch][1].x + 1.f,
strength(p->curve[ch][1].y, p->strength));
else
dt_draw_curve_add_point(d->curve[ch], p->curve[ch][1].x + 1.f,
strength(p->curve[ch][nodes - 1].y,
p->strength));
}
else
{
if(d->channel == DT_IOP_COLORZONES_h)
dt_draw_curve_set_point(d->curve[ch], 0,
p->curve[ch][nodes - 2].x - 1.f,
strength(p->curve[ch][nodes - 2].y,
p->strength));
else
dt_draw_curve_set_point(d->curve[ch], 0,
p->curve[ch][nodes - 2].x - 1.f,
strength(p->curve[ch][0].y, p->strength));
for(int k = 0; k < nodes; k++)
dt_draw_curve_set_point(d->curve[ch], k + 1, p->curve[ch][k].x,
strength(p->curve[ch][k].y, p->strength));
if(d->channel == DT_IOP_COLORZONES_h)
dt_draw_curve_set_point(d->curve[ch], nodes + 1,
p->curve[ch][1].x + 1.f,
strength(p->curve[ch][1].y, p->strength));
else
dt_draw_curve_set_point(d->curve[ch], nodes + 1,
p->curve[ch][1].x + 1.f,
strength(p->curve[ch][nodes - 1].y,
p->strength));
}
dt_draw_curve_calc_values(d->curve[ch], 0.f, 1.f,
DT_IOP_COLORZONES_LUT_RES, NULL, d->lut[ch]);
}
}
else
{
for(int ch = 0; ch < DT_IOP_COLORZONES_MAX_CHANNELS; ch++)
{
const int nodes = _colorzones_nodes(p, ch);
if(d->curve_type[ch] != p->curve_type[ch]
|| d->curve_nodes[ch] != p->curve_num_nodes[ch]
|| d->curve[ch]->c.m_numAnchors != p->curve_num_nodes[ch])
{
dt_draw_curve_destroy(d->curve[ch]);
d->curve[ch] = dt_draw_curve_new(0.f, 1.f, p->curve_type[ch]);
d->curve_nodes[ch] = p->curve_num_nodes[ch];
d->curve_type[ch] = p->curve_type[ch];
for(int k = 0; k < nodes; k++)
dt_draw_curve_add_point(d->curve[ch], p->curve[ch][k].x,
strength(p->curve[ch][k].y, p->strength));
}
else
{
for(int k = 0; k < nodes; k++)
dt_draw_curve_set_point(d->curve[ch], k, p->curve[ch][k].x,
strength(p->curve[ch][k].y, p->strength));
}
dt_draw_curve_calc_values_V2(d->curve[ch], 0.f, 1.f,
DT_IOP_COLORZONES_LUT_RES, NULL, d->lut[ch],
p->channel == DT_IOP_COLORZONES_h);
}
}
}
void init_pipe(dt_iop_module_t *self,
dt_dev_pixelpipe_t *pipe,
dt_dev_pixelpipe_iop_t *piece)
{
dt_iop_colorzones_data_t *d = malloc(sizeof(dt_iop_colorzones_data_t));
const dt_iop_colorzones_params_t *const default_params = self->default_params;
piece->data = d;
for(int ch = 0; ch < DT_IOP_COLORZONES_MAX_CHANNELS; ch++)
{
d->curve[ch] = dt_draw_curve_new(0.f, 1.f, default_params->curve_type[ch]);
d->curve_nodes[ch] = default_params->curve_num_nodes[ch];
d->curve_type[ch] = default_params->curve_type[ch];
for(int k = 0; k < default_params->curve_num_nodes[ch]; k++)
dt_draw_curve_add_point(d->curve[ch],
default_params->curve[ch][k].x,
default_params->curve[ch][k].y);
}
d->channel = (dt_iop_colorzones_channel_t)default_params->channel;
d->mode = default_params->mode;
}
void cleanup_pipe(dt_iop_module_t *self,
dt_dev_pixelpipe_t *pipe,
dt_dev_pixelpipe_iop_t *piece)
{
// clean up everything again.
dt_iop_colorzones_data_t *d = piece->data;
for(int ch = 0; ch < DT_IOP_COLORZONES_MAX_CHANNELS; ch++)
dt_draw_curve_destroy(d->curve[ch]);
free(piece->data);
piece->data = NULL;
}
void init(dt_iop_module_t *self)
{
self->params = calloc(1, sizeof(dt_iop_colorzones_params_t));
self->default_params = calloc(1, sizeof(dt_iop_colorzones_params_t));
self->default_enabled = FALSE;
self->params_size = sizeof(dt_iop_colorzones_params_t);
self->gui_data = NULL;
self->request_histogram |= DT_REQUEST_ON;
_reset_parameters(self->default_params, DT_IOP_COLORZONES_h,
DT_IOP_COLORZONES_SPLINES_V2);
}
#undef DT_IOP_COLORZONES_INSET
#undef DT_IOP_COLORZONES_CURVE_INFL
#undef DT_IOP_COLORZONES_RES
#undef DT_IOP_COLORZONES_LUT_RES
#undef DT_IOP_COLORZONES_BANDS
#undef DT_IOP_COLORZONES_MAXNODES
#undef DT_IOP_COLORZONES_DEFAULT_STEP
#undef DT_IOP_COLORZONES_MIN_X_DISTANCE
// clang-format off
// modelines: These editor modelines have been set for all relevant files by tools/update_modelines.py
// vim: shiftwidth=2 expandtab tabstop=2 cindent
// kate: tab-indents: off; indent-width 2; replace-tabs on; indent-mode cstyle; remove-trailing-spaces modified;
// clang-format on