Revision 0b0057cd583c619850fd0934e281ece4a977ed49 authored by johannes hanika on 07 November 2011, 06:46:13 UTC, committed by johannes hanika on 07 November 2011, 06:46:13 UTC
1 parent 8e10209
equalizer.c
/*
This file is part of darktable,
copyright (c) 2009--2010 johannes hanika.
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/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <math.h>
#include <assert.h>
#include <string.h>
#include "common/darktable.h"
#include "common/debug.h"
#include "iop/equalizer.h"
#include "gui/histogram.h"
#include "develop/develop.h"
#include "control/control.h"
#include "gui/gtk.h"
#include "gui/presets.h"
#include "iop/equalizer_eaw.h"
// #define DT_GUI_EQUALIZER_INSET 5
// #define DT_GUI_CURVE_INFL .3f
DT_MODULE(1)
const char *name()
{
return _("legacy equalizer");
}
int
groups ()
{
return IOP_GROUP_CORRECT;
}
int flags()
{
return IOP_FLAGS_DEPRECATED;
}
void process (struct dt_iop_module_t *self, dt_dev_pixelpipe_iop_t *piece, void *i, void *o, const dt_iop_roi_t *roi_in, const dt_iop_roi_t *roi_out)
{
float *in = (float *)i;
float *out = (float *)o;
const int chs = piece->colors;
const int width = roi_in->width, height = roi_in->height;
const float scale = roi_in->scale;
memcpy(out, in, chs*sizeof(float)*width*height);
#if 1
// printf("thread %d starting equalizer", (int)pthread_self());
// if(piece->iscale != 1.0) printf(" for preview\n");
// else printf("\n");
dt_iop_equalizer_data_t *d = (dt_iop_equalizer_data_t *)(piece->data);
// dt_iop_equalizer_gui_data_t *c = (dt_iop_equalizer_gui_data_t *)self->gui_data;
// 1 pixel in this buffer represents 1.0/scale pixels in original image:
const float l1 = 1.0f + dt_log2f(piece->iscale/scale); // finest level
float lm = 0;
for(int k=MIN(width,height)*piece->iscale/scale; k; k>>=1) lm++; // coarsest level
lm = MIN(DT_IOP_EQUALIZER_MAX_LEVEL, l1 + lm);
// level 1 => full resolution
int numl = 0;
for(int k=MIN(width,height); k; k>>=1) numl++;
const int numl_cap = MIN(DT_IOP_EQUALIZER_MAX_LEVEL-l1+1.5, numl);
// printf("level range in %d %d: %f %f, cap: %d\n", 1, d->num_levels, l1, lm, numl_cap);
// TODO: fixed alloc for data piece at capped resolution?
float **tmp = (float **)malloc(sizeof(float *)*numl_cap);
for(int k=1; k<numl_cap; k++)
{
const int wd = (int)(1 + (width>>(k-1))), ht = (int)(1 + (height>>(k-1)));
tmp[k] = (float *)malloc(sizeof(float)*wd*ht);
}
for(int level=1; level<numl_cap; level++) dt_iop_equalizer_wtf(out, tmp, level, width, height);
#if 0
// printf("transformed\n");
// store luma wavelet histogram for later drawing
if(self->dev->gui_attached && piece->iscale == 1.0 && self->dev->preview_pipe && c) // 1.0 => full pipe, only for gui applications.
{
// chose full pipe and current window.
int cnt[DT_IOP_EQUALIZER_BANDS];
for(int i=0; i<DT_IOP_EQUALIZER_BANDS; i++) cnt[i] = 0;
for(int l=1; l<numl_cap; l++)
{
const float lv = (lm-l1)*(l-1)/(float)(numl_cap-1) + l1; // appr level in real image.
const int band = CLAMP(.5f + (1.0 - lv / d->num_levels) * (DT_IOP_EQUALIZER_BANDS), 0, DT_IOP_EQUALIZER_BANDS);
c->band_hist[band] = 0.0f;
cnt[band]++;
int ch = (int)c->channel;
{
const int step = 1<<l;
for(int j=0; j<height; j+=step) for(int i=step/2; i<width; i+=step) c->band_hist[band] += out[chs*width*j + chs*i + ch]*out[chs*width*j + chs*i + ch];
for(int j=step/2; j<height; j+=step) for(int i=0; i<width; i+=step) c->band_hist[band] += out[chs*width*j + chs*i + ch]*out[chs*width*j + chs*i + ch];
for(int j=step/2; j<height; j+=step) for(int i=step/2; i<width; i+=step) c->band_hist[band] += out[chs*width*j + chs*i + ch]*out[chs*width*j + chs*i + ch]*.5f;
}
}
c->band_max = 0.0f;
for(int i=0; i<DT_IOP_EQUALIZER_BANDS; i++)
{
if(cnt[i]) c->band_hist[i] /= cnt[i];
else c->band_hist[i] = 0.0;
c->band_max = fmaxf(c->band_max, c->band_hist[i]);
// printf("band %d = %f\n", i, c->band_hist[i]);
}
}
#endif
// printf("histogrammed\n");
for(int l=1; l<numl_cap; l++)
{
const float lv = (lm-l1)*(l-1)/(float)(numl_cap-1) + l1; // appr level in real image.
const float band = CLAMP((1.0 - lv / d->num_levels), 0, 1.0);
for(int ch=0; ch<3; ch++)
{
// coefficients in range [0, 2], 1 being neutral.
const float coeff = 2*dt_draw_curve_calc_value(d->curve[ch==0?0:1], band);
const int step = 1<<l;
#if 1 // scale coefficients
for(int j=0; j<height; j+=step) for(int i=step/2; i<width; i+=step) out[chs*width*j + chs*i + ch] *= coeff;
for(int j=step/2; j<height; j+=step) for(int i=0; i<width; i+=step) out[chs*width*j + chs*i + ch] *= coeff;
for(int j=step/2; j<height; j+=step) for(int i=step/2; i<width; i+=step) out[chs*width*j + chs*i + ch] *= coeff*coeff;
#else // soft-thresholding (shrinkage)
#define wshrink (copysignf(fmaxf(0.0f, fabsf(out[chs*width*j + chs*i + ch]) - (1.0-coeff)), out[chs*width*j + chs*i + ch]))
for(int j=0; j<height; j+=step) for(int i=step/2; i<width; i+=step) out[chs*width*j + chs*i + ch] = wshrink;
for(int j=step/2; j<height; j+=step) for(int i=0; i<width; i+=step) out[chs*width*j + chs*i + ch] = wshrink;
for(int j=step/2; j<height; j+=step) for(int i=step/2; i<width; i+=step) out[chs*width*j + chs*i + ch] = wshrink;
#undef wshrink
#endif
}
}
// printf("applied\n");
for(int level=numl_cap-1; level>0; level--) dt_iop_equalizer_iwtf(out, tmp, level, width, height);
for(int k=1; k<numl_cap; k++) free(tmp[k]);
free(tmp);
// printf("thread %d finished equalizer", (int)pthread_self());
// if(piece->iscale != 1.0) printf(" for preview\n");
// else printf("\n");
#endif
}
void commit_params (struct dt_iop_module_t *self, dt_iop_params_t *p1, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
{
// pull in new params to gegl
dt_iop_equalizer_data_t *d = (dt_iop_equalizer_data_t *)(piece->data);
dt_iop_equalizer_params_t *p = (dt_iop_equalizer_params_t *)p1;
#ifdef HAVE_GEGL
// TODO
#else
for(int ch=0; ch<3; ch++) for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++)
dt_draw_curve_set_point(d->curve[ch], k, p->equalizer_x[ch][k], p->equalizer_y[ch][k]);
int l = 0;
for(int k=(int)MIN(pipe->iwidth*pipe->iscale,pipe->iheight*pipe->iscale); k; k>>=1) l++;
d->num_levels = MIN(DT_IOP_EQUALIZER_MAX_LEVEL, l);
#endif
}
void init_pipe (struct dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
{
// create part of the gegl pipeline
dt_iop_equalizer_data_t *d = (dt_iop_equalizer_data_t *)malloc(sizeof(dt_iop_equalizer_data_t));
dt_iop_equalizer_params_t *default_params = (dt_iop_equalizer_params_t *)self->default_params;
piece->data = (void *)d;
for(int ch=0; ch<3; ch++)
{
d->curve[ch] = dt_draw_curve_new(0.0, 1.0, CATMULL_ROM);
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++)
(void)dt_draw_curve_add_point(d->curve[ch], default_params->equalizer_x[ch][k], default_params->equalizer_y[ch][k]);
}
int l = 0;
for(int k=(int)MIN(pipe->iwidth*pipe->iscale,pipe->iheight*pipe->iscale); k; k>>=1) l++;
d->num_levels = MIN(DT_IOP_EQUALIZER_MAX_LEVEL, l);
#ifdef HAVE_GEGL
#error "gegl version not implemeted!"
piece->input = piece->output = gegl_node_new_child(pipe->gegl, "operation", "gegl:dt-contrast-curve", "sampling-points", 65535, "curve", d->curve[0], NULL);
d->num_levels = 1;
#endif
}
void cleanup_pipe (struct dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
{
// clean up everything again.
#ifdef HAVE_GEGL
#error "gegl version not implemented!"
// (void)gegl_node_remove_child(pipe->gegl, piece->input);
#endif
dt_iop_equalizer_data_t *d = (dt_iop_equalizer_data_t *)(piece->data);
for(int ch=0; ch<3; ch++) dt_draw_curve_destroy(d->curve[ch]);
free(piece->data);
}
void gui_update(struct dt_iop_module_t *self)
{
// nothing to do, gui curve is read directly from params during expose event.
// gtk_widget_queue_draw(self->widget);
}
void init(dt_iop_module_t *module)
{
module->params = malloc(sizeof(dt_iop_equalizer_params_t));
module->default_params = malloc(sizeof(dt_iop_equalizer_params_t));
module->default_enabled = 0; // we're a rather slow and rare op.
module->priority = 369; // module order created by iop_dependencies.py, do not edit!
module->params_size = sizeof(dt_iop_equalizer_params_t);
module->gui_data = NULL;
dt_iop_equalizer_params_t tmp;
for(int ch=0; ch<3; ch++)
{
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++) tmp.equalizer_x[ch][k] = k/(float)(DT_IOP_EQUALIZER_BANDS-1);
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++) tmp.equalizer_y[ch][k] = 0.5f;
}
memcpy(module->params, &tmp, sizeof(dt_iop_equalizer_params_t));
memcpy(module->default_params, &tmp, sizeof(dt_iop_equalizer_params_t));
}
void cleanup(dt_iop_module_t *module)
{
free(module->gui_data);
module->gui_data = NULL;
free(module->params);
module->params = NULL;
}
#if 0
void init_presets (dt_iop_module_so_t *self)
{
DT_DEBUG_SQLITE3_EXEC(darktable.db, "begin", NULL, NULL, NULL);
dt_iop_equalizer_params_t p;
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++)
{
p.equalizer_x[DT_IOP_EQUALIZER_L][k] = k/(DT_IOP_EQUALIZER_BANDS-1.0);
p.equalizer_x[DT_IOP_EQUALIZER_a][k] = k/(DT_IOP_EQUALIZER_BANDS-1.0);
p.equalizer_x[DT_IOP_EQUALIZER_b][k] = k/(DT_IOP_EQUALIZER_BANDS-1.0);
p.equalizer_y[DT_IOP_EQUALIZER_L][k] = .5f+.5f*k/(float)DT_IOP_EQUALIZER_BANDS;
p.equalizer_y[DT_IOP_EQUALIZER_a][k] = .5f;
p.equalizer_y[DT_IOP_EQUALIZER_b][k] = .5f;
}
dt_gui_presets_add_generic(_("sharpen (strong)"), self->op, self->version(), &p, sizeof(p), 1);
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++)
{
p.equalizer_x[DT_IOP_EQUALIZER_L][k] = k/(DT_IOP_EQUALIZER_BANDS-1.0);
p.equalizer_x[DT_IOP_EQUALIZER_a][k] = k/(DT_IOP_EQUALIZER_BANDS-1.0);
p.equalizer_x[DT_IOP_EQUALIZER_b][k] = k/(DT_IOP_EQUALIZER_BANDS-1.0);
p.equalizer_y[DT_IOP_EQUALIZER_L][k] = .5f+.25f*k/(float)DT_IOP_EQUALIZER_BANDS;
p.equalizer_y[DT_IOP_EQUALIZER_a][k] = .5f;
p.equalizer_y[DT_IOP_EQUALIZER_b][k] = .5f;
}
dt_gui_presets_add_generic(C_("equalizer", "sharpen"), self->op, self->version(), &p, sizeof(p), 1);
for(int ch=0; ch<3; ch++)
{
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++) p.equalizer_x[ch][k] = k/(float)(DT_IOP_EQUALIZER_BANDS-1);
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++) p.equalizer_y[ch][k] = 0.5f;
}
dt_gui_presets_add_generic(_("null"), self->op, self->version(), &p, sizeof(p), 1);
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++)
{
p.equalizer_x[DT_IOP_EQUALIZER_L][k] = k/(DT_IOP_EQUALIZER_BANDS-1.0);
p.equalizer_x[DT_IOP_EQUALIZER_a][k] = k/(DT_IOP_EQUALIZER_BANDS-1.0);
p.equalizer_x[DT_IOP_EQUALIZER_b][k] = k/(DT_IOP_EQUALIZER_BANDS-1.0);
p.equalizer_y[DT_IOP_EQUALIZER_L][k] = .5f-.2f*k/(float)DT_IOP_EQUALIZER_BANDS;
p.equalizer_y[DT_IOP_EQUALIZER_a][k] = fmaxf(0.0f, .5f-.3f*k/(float)DT_IOP_EQUALIZER_BANDS);
p.equalizer_y[DT_IOP_EQUALIZER_b][k] = fmaxf(0.0f, .5f-.3f*k/(float)DT_IOP_EQUALIZER_BANDS);
}
dt_gui_presets_add_generic(_("denoise"), self->op, self->version(), &p, sizeof(p), 1);
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++)
{
p.equalizer_x[DT_IOP_EQUALIZER_L][k] = k/(DT_IOP_EQUALIZER_BANDS-1.0);
p.equalizer_x[DT_IOP_EQUALIZER_a][k] = k/(DT_IOP_EQUALIZER_BANDS-1.0);
p.equalizer_x[DT_IOP_EQUALIZER_b][k] = k/(DT_IOP_EQUALIZER_BANDS-1.0);
p.equalizer_y[DT_IOP_EQUALIZER_L][k] = .5f-.4f*k/(float)DT_IOP_EQUALIZER_BANDS;
p.equalizer_y[DT_IOP_EQUALIZER_a][k] = fmaxf(0.0f, .5f-.6f*k/(float)DT_IOP_EQUALIZER_BANDS);
p.equalizer_y[DT_IOP_EQUALIZER_b][k] = fmaxf(0.0f, .5f-.6f*k/(float)DT_IOP_EQUALIZER_BANDS);
}
dt_gui_presets_add_generic(_("denoise (strong)"), self->op, self->version(), &p, sizeof(p), 1);
DT_DEBUG_SQLITE3_EXEC(darktable.db, "commit", NULL, NULL, NULL);
}
#endif
void gui_init(struct dt_iop_module_t *self)
{
self->gui_data = malloc(sizeof(dt_iop_equalizer_gui_data_t));
self->widget = gtk_label_new(_("this module will be removed in the future\nand is only here so you can switch it off\nand move to the new equalizer."));
gtk_misc_set_alignment(GTK_MISC(self->widget), 0.0f, 0.5f);
#if 0
dt_iop_equalizer_gui_data_t *c = (dt_iop_equalizer_gui_data_t *)self->gui_data;
dt_iop_equalizer_params_t *p = (dt_iop_equalizer_params_t *)self->params;
c->band_max = 0;
c->channel = DT_IOP_EQUALIZER_L;
int ch = (int)c->channel;
c->minmax_curve = dt_draw_curve_new(0.0, 1.0, HERMITE_SPLINE);
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++) (void)dt_draw_curve_add_point(c->minmax_curve, p->equalizer_x[ch][k], p->equalizer_y[ch][k]);
c->mouse_x = c->mouse_y = c->mouse_pick = -1.0;
c->dragging = 0;
c->x_move = -1;
c->mouse_radius = 1.0/DT_IOP_EQUALIZER_BANDS;
self->widget = GTK_WIDGET(gtk_vbox_new(FALSE, 0));
c->area = GTK_DRAWING_AREA(gtk_drawing_area_new());
gtk_box_pack_start(GTK_BOX(self->widget), GTK_WIDGET(c->area), TRUE, TRUE, 0);
gtk_drawing_area_size(c->area, 195, 195);
gtk_widget_add_events(GTK_WIDGET(c->area), GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_LEAVE_NOTIFY_MASK);
g_signal_connect (G_OBJECT (c->area), "expose-event",
G_CALLBACK (dt_iop_equalizer_expose), self);
g_signal_connect (G_OBJECT (c->area), "button-press-event",
G_CALLBACK (dt_iop_equalizer_button_press), self);
g_signal_connect (G_OBJECT (c->area), "button-release-event",
G_CALLBACK (dt_iop_equalizer_button_release), self);
g_signal_connect (G_OBJECT (c->area), "motion-notify-event",
G_CALLBACK (dt_iop_equalizer_motion_notify), self);
g_signal_connect (G_OBJECT (c->area), "leave-notify-event",
G_CALLBACK (dt_iop_equalizer_leave_notify), self);
g_signal_connect (G_OBJECT (c->area), "scroll-event",
G_CALLBACK (dt_iop_equalizer_scrolled), self);
// init gtk stuff
c->hbox = GTK_HBOX(gtk_hbox_new(FALSE, 0));
gtk_box_pack_start(GTK_BOX(self->widget), GTK_WIDGET(c->hbox), FALSE, FALSE, 0);
c->channel_button[0] = GTK_RADIO_BUTTON(gtk_radio_button_new_with_label(NULL, _("luma")));
c->channel_button[1] = GTK_RADIO_BUTTON(gtk_radio_button_new_with_label_from_widget(c->channel_button[0], _("chroma")));
// c->channel_button[2] = GTK_RADIO_BUTTON(gtk_radio_button_new_with_label_from_widget(c->channel_button[0], "b"));
g_signal_connect (G_OBJECT (c->channel_button[0]), "toggled",
G_CALLBACK (dt_iop_equalizer_button_toggled), self);
g_signal_connect (G_OBJECT (c->channel_button[1]), "toggled",
G_CALLBACK (dt_iop_equalizer_button_toggled), self);
// g_signal_connect (G_OBJECT (c->channel_button[2]), "toggled",
// G_CALLBACK (dt_iop_equalizer_button_toggled), self);
// gtk_box_pack_end(GTK_BOX(c->hbox), GTK_WIDGET(c->channel_button[2]), FALSE, FALSE, 5);
gtk_box_pack_end(GTK_BOX(c->hbox), GTK_WIDGET(c->channel_button[1]), FALSE, FALSE, 5);
gtk_box_pack_end(GTK_BOX(c->hbox), GTK_WIDGET(c->channel_button[0]), FALSE, FALSE, 5);
#endif
}
void gui_cleanup(struct dt_iop_module_t *self)
{
free(self->gui_data);
self->gui_data = NULL;
}
#if 0
static gboolean dt_iop_equalizer_leave_notify(GtkWidget *widget, GdkEventCrossing *event, gpointer user_data)
{
dt_iop_module_t *self = (dt_iop_module_t *)user_data;
dt_iop_equalizer_gui_data_t *c = (dt_iop_equalizer_gui_data_t *)self->gui_data;
// c->mouse_radius = 1.0/DT_IOP_EQUALIZER_BANDS;
if(!c->dragging) c->mouse_x = c->mouse_y = -1.0;
gtk_widget_queue_draw(widget);
return TRUE;
}
// fills in new parameters based on mouse position (in 0,1)
static void dt_iop_equalizer_get_params(dt_iop_equalizer_params_t *p, const int ch, const double mouse_x, const double mouse_y, const float rad)
{
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++)
{
const float f = expf(-(mouse_x - p->equalizer_x[ch][k])*(mouse_x - p->equalizer_x[ch][k])/(rad*rad));
p->equalizer_y[ch][k] = (1-f)*p->equalizer_y[ch][k] + f*mouse_y;
}
}
static gboolean dt_iop_equalizer_expose(GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
{
dt_iop_module_t *self = (dt_iop_module_t *)user_data;
dt_iop_equalizer_gui_data_t *c = (dt_iop_equalizer_gui_data_t *)self->gui_data;
dt_iop_equalizer_params_t p = *(dt_iop_equalizer_params_t *)self->params;
int ch = (int)c->channel;
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++) dt_draw_curve_set_point(c->minmax_curve, k, p.equalizer_x[ch][k], p.equalizer_y[ch][k]);
const int inset = DT_GUI_EQUALIZER_INSET;
int width = widget->allocation.width, height = widget->allocation.height;
cairo_surface_t *cst = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
cairo_t *cr = cairo_create(cst);
// clear bg
cairo_set_source_rgb (cr, .2, .2, .2);
cairo_paint(cr);
cairo_translate(cr, inset, inset);
width -= 2*inset;
height -= 2*inset;
cairo_set_line_width(cr, 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(c->mouse_y > 0 || c->dragging)
{
// draw min/max curves:
dt_iop_equalizer_get_params(&p, c->channel, c->mouse_x, 1., c->mouse_radius);
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++)
dt_draw_curve_set_point(c->minmax_curve, k, p.equalizer_x[ch][k], p.equalizer_y[ch][k]);
dt_draw_curve_calc_values(c->minmax_curve, 0.0, 1.0, DT_IOP_EQUALIZER_RES, c->draw_min_xs, c->draw_min_ys);
p = *(dt_iop_equalizer_params_t *)self->params;
dt_iop_equalizer_get_params(&p, c->channel, c->mouse_x, .0, c->mouse_radius);
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++)
dt_draw_curve_set_point(c->minmax_curve, k, p.equalizer_x[ch][k], p.equalizer_y[ch][k]);
dt_draw_curve_calc_values(c->minmax_curve, 0.0, 1.0, DT_IOP_EQUALIZER_RES, c->draw_max_xs, c->draw_max_ys);
}
// draw grid
cairo_set_line_width(cr, .4);
cairo_set_source_rgb (cr, .1, .1, .1);
dt_draw_grid(cr, 8, 0, 0, width, height);
// draw x positions
cairo_set_line_width(cr, 1.);
cairo_set_source_rgb(cr, 0.6, 0.6, 0.6);
const float arrw = 7.0f;
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++)
{
cairo_move_to(cr, width*p.equalizer_x[c->channel][k], height+inset-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(c->x_move == k) cairo_fill(cr);
else cairo_stroke(cr);
}
// draw selected cursor
cairo_set_line_width(cr, 1.);
cairo_translate(cr, 0, height);
// draw frequency histogram in bg.
#if 1
if(c->band_max > 0)
{
cairo_save(cr);
cairo_scale(cr, width/(DT_IOP_EQUALIZER_BANDS-1.0), -(height-5)/c->band_max);
cairo_set_source_rgba(cr, .2, .2, .2, 0.5);
cairo_move_to(cr, 0, 0);
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++) cairo_line_to(cr, k, c->band_hist[k]);
cairo_line_to(cr, DT_IOP_EQUALIZER_BANDS-1.0, 0.);
cairo_close_path(cr);
cairo_fill(cr);
cairo_restore(cr);
}
#endif
// cairo_set_operator(cr, CAIRO_OPERATOR_ADD);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_set_line_width(cr, 2.);
for(int i=0; i<3; i++)
{
// draw curves, selected last.
int ch = ((int)c->channel+i+1)%3;
if(ch == 2) continue;
switch(ch)
{
case DT_IOP_EQUALIZER_L:
cairo_set_source_rgba(cr, .6, .6, .6, .3);
break;
case DT_IOP_EQUALIZER_a:
cairo_set_source_rgba(cr, .4, .2, .0, .4);
break;
default: //case DT_IOP_EQUALIZER_b:
cairo_set_source_rgba(cr, 0., .2, .4, .4);
break;
}
p = *(dt_iop_equalizer_params_t *)self->params;
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++)
dt_draw_curve_set_point(c->minmax_curve, k, p.equalizer_x[ch][k], p.equalizer_y[ch][k]);
dt_draw_curve_calc_values(c->minmax_curve, 0.0, 1.0, DT_IOP_EQUALIZER_RES, c->draw_xs, c->draw_ys);
// cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
cairo_move_to(cr, 0, 0);
for(int k=0; k<DT_IOP_EQUALIZER_RES; k++) cairo_line_to(cr, k*width/(float)(DT_IOP_EQUALIZER_RES-1), - height*c->draw_ys[k]);
cairo_line_to(cr, width, 0);
cairo_close_path(cr);
cairo_stroke_preserve(cr);
cairo_fill(cr);
}
// draw dots on knots
cairo_save(cr);
cairo_set_source_rgb(cr, 0.7, 0.7, 0.7);
cairo_set_line_width(cr, 1.);
for(int k=0; k<DT_IOP_EQUALIZER_BANDS; k++)
{
cairo_arc(cr, width*p.equalizer_x[c->channel][k], - height*p.equalizer_y[c->channel][k], 3.0, 0.0, 2.0*M_PI);
if(c->x_move == k) cairo_fill(cr);
else cairo_stroke(cr);
}
cairo_restore(cr);
if(c->mouse_y > 0 || c->dragging)
{
// draw min/max, if selected
// cairo_set_source_rgba(cr, .6, .6, .6, .5);
cairo_move_to(cr, 0, - height*c->draw_min_ys[0]);
for(int k=1; k<DT_IOP_EQUALIZER_RES; k++) cairo_line_to(cr, k*width/(float)(DT_IOP_EQUALIZER_RES-1), - height*c->draw_min_ys[k]);
for(int k=DT_IOP_EQUALIZER_RES-2; k>=0; k--) cairo_line_to(cr, k*width/(float)(DT_IOP_EQUALIZER_RES-1), - height*c->draw_max_ys[k]);
cairo_close_path(cr);
cairo_fill(cr);
// draw mouse focus circle
cairo_set_source_rgba(cr, .9, .9, .9, .5);
const float pos = DT_IOP_EQUALIZER_RES * c->mouse_x;
int k = (int)pos;
const float f = k - pos;
if(k >= DT_IOP_EQUALIZER_RES-1) k = DT_IOP_EQUALIZER_RES - 2;
float ht = -height*(f*c->draw_ys[k] + (1-f)*c->draw_ys[k+1]);
cairo_arc(cr, c->mouse_x*width, ht, c->mouse_radius*width, 0, 2.*M_PI);
cairo_stroke(cr);
}
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_destroy(cr);
cairo_t *cr_pixmap = gdk_cairo_create(gtk_widget_get_window(widget));
cairo_set_source_surface (cr_pixmap, cst, 0, 0);
cairo_paint(cr_pixmap);
cairo_destroy(cr_pixmap);
cairo_surface_destroy(cst);
return TRUE;
}
static gboolean dt_iop_equalizer_motion_notify(GtkWidget *widget, GdkEventMotion *event, gpointer user_data)
{
dt_iop_module_t *self = (dt_iop_module_t *)user_data;
dt_iop_equalizer_gui_data_t *c = (dt_iop_equalizer_gui_data_t *)self->gui_data;
dt_iop_equalizer_params_t *p = (dt_iop_equalizer_params_t *)self->params;
const int inset = DT_GUI_EQUALIZER_INSET;
int height = widget->allocation.height - 2*inset, width = widget->allocation.width - 2*inset;
if(!c->dragging) c->mouse_x = CLAMP(event->x - inset, 0, width)/(float)width;
c->mouse_y = 1.0 - CLAMP(event->y - inset, 0, height)/(float)height;
if(c->dragging)
{
*p = c->drag_params;
if(c->x_move >= 0)
{
const float mx = CLAMP(event->x - inset, 0, width)/(float)width;
if(c->x_move > 0 && c->x_move < DT_IOP_EQUALIZER_BANDS-1)
{
const float minx = p->equalizer_x[c->channel][c->x_move-1] + 0.001f;
const float maxx = p->equalizer_x[c->channel][c->x_move+1] - 0.001f;
p->equalizer_x[c->channel][c->x_move] = fminf(maxx, fmaxf(minx, mx));
}
}
else
{
dt_iop_equalizer_get_params(p, c->channel, c->mouse_x, c->mouse_y + c->mouse_pick, c->mouse_radius);
}
dt_dev_add_history_item(darktable.develop, self, TRUE);
}
else if(event->y > height)
{
c->x_move = 0;
float dist = fabsf(p->equalizer_x[c->channel][0] - c->mouse_x);
for(int k=1; k<DT_IOP_EQUALIZER_BANDS; k++)
{
float d2 = fabsf(p->equalizer_x[c->channel][k] - c->mouse_x);
if(d2 < dist)
{
c->x_move = k;
dist = d2;
}
}
}
else
{
c->x_move = -1;
}
gtk_widget_queue_draw(widget);
gint x, y;
gdk_window_get_pointer(event->window, &x, &y, NULL);
return TRUE;
}
static gboolean dt_iop_equalizer_button_press(GtkWidget *widget, GdkEventButton *event, gpointer user_data)
{
// set active point
if(event->button == 1)
{
dt_iop_module_t *self = (dt_iop_module_t *)user_data;
dt_iop_equalizer_gui_data_t *c = (dt_iop_equalizer_gui_data_t *)self->gui_data;
c->drag_params = *(dt_iop_equalizer_params_t *)self->params;
const int inset = DT_GUI_EQUALIZER_INSET;
int height = widget->allocation.height - 2*inset, width = widget->allocation.width - 2*inset;
c->mouse_pick = dt_draw_curve_calc_value(c->minmax_curve, CLAMP(event->x - inset, 0, width)/(float)width);
c->mouse_pick -= 1.0 - CLAMP(event->y - inset, 0, height)/(float)height;
c->dragging = 1;
return TRUE;
}
return FALSE;
}
static gboolean dt_iop_equalizer_button_release(GtkWidget *widget, GdkEventButton *event, gpointer user_data)
{
if(event->button == 1)
{
dt_iop_module_t *self = (dt_iop_module_t *)user_data;
dt_iop_equalizer_gui_data_t *c = (dt_iop_equalizer_gui_data_t *)self->gui_data;
c->dragging = 0;
return TRUE;
}
return FALSE;
}
static gboolean dt_iop_equalizer_scrolled(GtkWidget *widget, GdkEventScroll *event, gpointer user_data)
{
dt_iop_module_t *self = (dt_iop_module_t *)user_data;
dt_iop_equalizer_gui_data_t *c = (dt_iop_equalizer_gui_data_t *)self->gui_data;
if(event->direction == GDK_SCROLL_UP && c->mouse_radius > 0.25/DT_IOP_EQUALIZER_BANDS) c->mouse_radius *= 0.9; //0.7;
if(event->direction == GDK_SCROLL_DOWN && c->mouse_radius < 1.0) c->mouse_radius *= (1.0/0.9); //1.42;
gtk_widget_queue_draw(widget);
return TRUE;
}
static void dt_iop_equalizer_button_toggled(GtkToggleButton *togglebutton, gpointer user_data)
{
dt_iop_module_t *self = (dt_iop_module_t *)user_data;
dt_iop_equalizer_gui_data_t *c = (dt_iop_equalizer_gui_data_t *)self->gui_data;
if(gtk_toggle_button_get_active(togglebutton))
{
for(int k=0; k<3; k++) if(c->channel_button[k] == GTK_RADIO_BUTTON(togglebutton))
{
c->channel = (dt_iop_equalizer_channel_t)k;
gtk_widget_queue_draw(self->widget);
return;
}
}
}
#endif
Computing file changes ...