2 * C41 plugin for Cinelerra
3 * Copyright (C) 2011 Florent Delannoy <florent at plui dot es>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include "edlsession.h"
28 REGISTER_PLUGIN(C41Effect);
30 C41Config::C41Config()
37 fix_min_r = fix_min_g = fix_min_b = fix_light = 0.;
38 fix_gamma_g = fix_gamma_b = fix_coef1 = fix_coef2 = 0.;
39 min_col = max_col = min_row = max_row = 0;
40 window_w = 500; window_h = 510;
43 void C41Config::copy_from(C41Config &src)
46 compute_magic = src.compute_magic;
47 postproc = src.postproc;
48 show_box = src.show_box;
50 fix_min_r = src.fix_min_r;
51 fix_min_g = src.fix_min_g;
52 fix_min_b = src.fix_min_b;
53 fix_light = src.fix_light;
54 fix_gamma_g = src.fix_gamma_g;
55 fix_gamma_b = src.fix_gamma_b;
56 fix_coef1 = src.fix_coef1;
57 fix_coef2 = src.fix_coef2;
58 min_row = src.min_row;
59 max_row = src.max_row;
60 min_col = src.min_col;
61 max_col = src.max_col;
64 int C41Config::equivalent(C41Config &src)
66 return (active == src.active &&
67 compute_magic == src.compute_magic &&
68 postproc == src.postproc &&
69 show_box == src.show_box &&
70 EQUIV(fix_min_r, src.fix_min_r) &&
71 EQUIV(fix_min_g, src.fix_min_g) &&
72 EQUIV(fix_min_b, src.fix_min_b) &&
73 EQUIV(fix_light, src.fix_light) &&
74 EQUIV(fix_gamma_g, src.fix_gamma_g) &&
75 EQUIV(fix_gamma_b, src.fix_gamma_b) &&
76 EQUIV(fix_coef1, src.fix_coef1) &&
77 EQUIV(fix_coef2, src.fix_coef2) &&
78 min_row == src.min_row &&
79 max_row == src.max_row &&
80 min_col == src.min_col &&
81 max_col == src.max_col);
84 void C41Config::interpolate(C41Config &prev, C41Config &next,
85 long prev_frame, long next_frame, long current_frame)
88 compute_magic = prev.compute_magic;
89 postproc = prev.postproc;
90 show_box = prev.show_box;
92 double next_scale = (double)(current_frame - prev_frame) / (next_frame - prev_frame);
93 double prev_scale = (double)(next_frame - current_frame) / (next_frame - prev_frame);
94 fix_min_r = prev.fix_min_r * prev_scale + next.fix_min_r * next_scale;
95 fix_min_g = prev.fix_min_g * prev_scale + next.fix_min_g * next_scale;
96 fix_min_b = prev.fix_min_b * prev_scale + next.fix_min_b * next_scale;
97 fix_light = prev.fix_light * prev_scale + next.fix_light * next_scale;
98 fix_gamma_g = prev.fix_gamma_g * prev_scale + next.fix_gamma_g * next_scale;
99 fix_gamma_b = prev.fix_gamma_b * prev_scale + next.fix_gamma_b * next_scale;
100 fix_coef1 = prev.fix_coef1 * prev_scale + next.fix_coef1 * next_scale;
101 fix_coef2 = prev.fix_coef2 * prev_scale + next.fix_coef2 * next_scale;
102 min_row = round(prev.min_row * prev_scale + next.min_row * next_scale);
103 min_col = round(prev.min_col * prev_scale + next.min_col * next_scale);
104 max_row = round(prev.max_row * prev_scale + next.max_row * next_scale);
105 max_col = round(prev.max_col * prev_scale + next.max_col * next_scale);
109 C41Enable::C41Enable(C41Effect *plugin, int *output, int x, int y, const char *text)
110 : BC_CheckBox(x, y, *output, text)
112 this->plugin = plugin;
113 this->output = output;
116 int C41Enable::handle_event()
118 *output = get_value();
119 plugin->send_configure_change();
124 C41TextBox::C41TextBox(C41Effect *plugin, float *value, int x, int y)
125 : BC_TextBox(x, y, 160, 1, *value)
127 this->plugin = plugin;
128 this->boxValue = value;
131 int C41TextBox::handle_event()
133 *boxValue = atof(get_text());
134 plugin->send_configure_change();
140 C41Button::C41Button(C41Effect *plugin, C41Window *window, int x, int y)
141 : BC_GenericButton(x, y, _("Apply values"))
143 this->plugin = plugin;
144 this->window = window;
147 int C41Button::handle_event()
149 plugin->config.fix_min_r = plugin->values.min_r;
150 plugin->config.fix_min_g = plugin->values.min_g;
151 plugin->config.fix_min_b = plugin->values.min_b;
152 plugin->config.fix_light = plugin->values.light;
153 plugin->config.fix_gamma_g = plugin->values.gamma_g;
154 plugin->config.fix_gamma_b = plugin->values.gamma_b;
155 if( plugin->values.coef1 > 0 )
156 plugin->config.fix_coef1 = plugin->values.coef1;
157 if( plugin->values.coef2 > 0 )
158 plugin->config.fix_coef2 = plugin->values.coef2;
162 plugin->send_configure_change();
167 C41BoxButton::C41BoxButton(C41Effect *plugin, C41Window *window, int x, int y)
168 : BC_GenericButton(x, y, _("Apply default box"))
170 this->plugin = plugin;
171 this->window = window;
174 int C41BoxButton::handle_event()
176 plugin->config.min_row = plugin->values.shave_min_row;
177 plugin->config.max_row = plugin->values.shave_max_row;
178 plugin->config.min_col = plugin->values.shave_min_col;
179 plugin->config.max_col = plugin->values.shave_max_col;
183 plugin->send_configure_change();
188 C41Slider::C41Slider(C41Effect *plugin, int *output, int x, int y, int is_row)
189 : BC_ISlider(x, y, 0, 200, 200, 0, is_row ?
190 plugin->get_edlsession()->output_h :
191 plugin->get_edlsession()->output_w , *output)
193 this->plugin = plugin;
194 this->output = output;
195 this->is_row = is_row;
196 EDLSession *session = plugin->get_edlsession();
197 this->max = is_row ? session->output_h : session->output_w;
200 int C41Slider::handle_event()
202 *output = get_value();
203 plugin->send_configure_change();
207 int C41Slider::update(int v)
209 EDLSession *session = plugin->get_edlsession();
210 int max = is_row ? session->output_h : session->output_w;
212 if( this->max != max ) return BC_ISlider::update(200, v, 0, this->max = max);
213 if( v != get_value() ) return BC_ISlider::update(v);
217 const char* C41Effect::plugin_title() { return _("C41"); }
218 int C41Effect::is_realtime() { return 1; }
219 int C41Effect::is_synthesis() { return 1; }
221 NEW_WINDOW_MACRO(C41Effect, C41Window);
222 LOAD_CONFIGURATION_MACRO(C41Effect, C41Config)
225 C41Window::C41Window(C41Effect *plugin)
226 : PluginClientWindow(plugin,
227 plugin->config.window_w, plugin->config.window_h,
232 add_subwindow(active = new C41Enable(plugin,
233 &plugin->config.active, x, y, _("Activate processing")));
236 add_subwindow(compute_magic = new C41Enable(plugin,
237 &plugin->config.compute_magic, x, y, _("Compute negfix values")));
240 add_subwindow(new BC_Title(x + 20, y, _("(uncheck for faster rendering)")));
243 add_subwindow(new BC_Title(x, y, _("Computed negfix values:")));
246 add_subwindow(new BC_Title(x, y, _("Min/Max R:")));
247 add_subwindow(min_r = new BC_Title(x + 80, y, "0.0000 / 0.0000"));
250 add_subwindow(new BC_Title(x, y, _("Min/Max G:")));
251 add_subwindow(min_g = new BC_Title(x + 80, y, "0.0000 / 0.0000"));
254 add_subwindow(new BC_Title(x, y, _("Min/Max B:")));
255 add_subwindow(min_b = new BC_Title(x + 80, y, "0.0000 / 0.0000"));
258 add_subwindow(new BC_Title(x, y, _("Light:")));
259 add_subwindow(light = new BC_Title(x + 80, y, "0.0000"));
262 add_subwindow(new BC_Title(x, y, _("Gamma G:")));
263 add_subwindow(gamma_g = new BC_Title(x + 80, y, "0.0000"));
266 add_subwindow(new BC_Title(x, y, _("Gamma B:")));
267 add_subwindow(gamma_b = new BC_Title(x + 80, y, "0.0000"));
270 add_subwindow(new BC_Title(x, y, _("Contrast:")));
271 add_subwindow(coef1 = new BC_Title(x + 80, y, "0.0000"));
274 add_subwindow(new BC_Title(x, y, _("Brightness:")));
275 add_subwindow(coef2 = new BC_Title(x + 80, y, "0.0000"));
278 add_subwindow(lock = new C41Button(plugin, this, x, y));
282 add_subwindow(new BC_Title(x, y, _("Box col:")));
283 add_subwindow(box_col_min = new BC_Title(x + 80, y, "0"));
284 add_subwindow(box_col_max = new BC_Title(x + BOX_COL, y, "0"));
287 add_subwindow(new BC_Title(x, y, _("Box row:")));
288 add_subwindow(box_row_min = new BC_Title(x + 80, y, "0"));
289 add_subwindow(box_row_max = new BC_Title(x + BOX_COL, y, "0"));
292 add_subwindow(boxlock = new C41BoxButton(plugin, this, x, y));
296 add_subwindow(show_box = new C41Enable(plugin,
297 &plugin->config.show_box, x, y, _("Show active area")));
300 add_subwindow(postproc = new C41Enable(plugin,
301 &plugin->config.postproc, x, y, _("Postprocess")));
304 add_subwindow(new BC_Title(x, y, _("negfix values to apply:")));
307 add_subwindow(new BC_Title(x, y, _("Min R:")));
308 add_subwindow(fix_min_r = new C41TextBox(plugin,
309 &plugin->config.fix_min_r, x + 80, y));
312 add_subwindow(new BC_Title(x, y, _("Min G:")));
313 add_subwindow(fix_min_g = new C41TextBox(plugin,
314 &plugin->config.fix_min_g, x + 80, y));
317 add_subwindow(new BC_Title(x, y, _("Min B:")));
318 add_subwindow(fix_min_b = new C41TextBox(plugin,
319 &plugin->config.fix_min_b, x + 80, y));
322 add_subwindow(new BC_Title(x, y, _("Light:")));
323 add_subwindow(fix_light = new C41TextBox(plugin,
324 &plugin->config.fix_light, x + 80, y));
327 add_subwindow(new BC_Title(x, y, _("Gamma G:")));
328 add_subwindow(fix_gamma_g = new C41TextBox(plugin,
329 &plugin->config.fix_gamma_g, x + 80, y));
332 add_subwindow(new BC_Title(x, y, _("Gamma B:")));
333 add_subwindow(fix_gamma_b = new C41TextBox(plugin,
334 &plugin->config.fix_gamma_b, x + 80, y));
337 add_subwindow(new BC_Title(x, y, _("Contrast:")));
338 add_subwindow(fix_coef1 = new C41TextBox(plugin,
339 &plugin->config.fix_coef1, x + 80, y));
342 add_subwindow(new BC_Title(x, y, _("Brightness:")));
343 add_subwindow(fix_coef2 = new C41TextBox(plugin,
344 &plugin->config.fix_coef2, x + 80, y));
348 add_subwindow(new BC_Title(x - 40, y, _("Col:")));
349 add_subwindow(min_col = new C41Slider(plugin,
350 &plugin->config.min_col, x, y, 0));
353 add_subwindow(max_col = new C41Slider(plugin,
354 &plugin->config.max_col, x, y, 0));
357 add_subwindow(new BC_Title(x - 40, y, _("Row:")));
358 add_subwindow(min_row = new C41Slider(plugin,
359 &plugin->config.min_row, x, y, 1));
362 add_subwindow(max_row = new C41Slider(plugin,
363 &plugin->config.max_row, x, y, 1));
370 void C41Window::update()
372 C41Effect *plugin = (C41Effect *)client;
373 // Updating the GUI itself
374 active->update(plugin->config.active);
375 compute_magic->update(plugin->config.compute_magic);
376 postproc->update(plugin->config.postproc);
377 show_box->update(plugin->config.show_box);
379 fix_min_r->update(plugin->config.fix_min_r);
380 fix_min_g->update(plugin->config.fix_min_g);
381 fix_min_b->update(plugin->config.fix_min_b);
382 fix_light->update(plugin->config.fix_light);
383 fix_gamma_g->update(plugin->config.fix_gamma_g);
384 fix_gamma_b->update(plugin->config.fix_gamma_b);
385 fix_coef1->update(plugin->config.fix_coef1);
386 fix_coef2->update(plugin->config.fix_coef2);
388 min_row->update(plugin->config.min_row);
389 max_row->update(plugin->config.max_row);
390 min_col->update(plugin->config.min_col);
391 max_col->update(plugin->config.max_col);
396 void C41Window::update_magic()
398 C41Effect *plugin = (C41Effect *)client;
400 sprintf(text, "%0.4f / %0.4f", plugin->values.min_r, plugin->values.max_r);
402 sprintf(text, "%0.4f / %0.4f", plugin->values.min_g, plugin->values.max_g);
404 sprintf(text, "%0.4f / %0.4f", plugin->values.min_b, plugin->values.max_b);
406 light->update(plugin->values.light);
407 gamma_g->update(plugin->values.gamma_g);
408 gamma_b->update(plugin->values.gamma_b);
410 if( plugin->values.coef1 > 0 || plugin->values.coef2 > 0 ) {
411 coef1->update(plugin->values.coef1);
412 coef2->update(plugin->values.coef2);
414 sprintf(text, "%d", plugin->values.shave_min_col);
415 box_col_min->update(text);
416 sprintf(text, "%d", plugin->values.shave_max_col);
417 box_col_max->update(text);
418 sprintf(text, "%d", plugin->values.shave_min_row);
419 box_row_min->update(text);
420 sprintf(text, "%d", plugin->values.shave_max_row);
421 box_row_max->update(text);
426 C41Effect::C41Effect(PluginServer *server)
427 : PluginVClient(server)
432 memset(&values, 0, sizeof(values));
435 C41Effect::~C41Effect()
442 void C41Effect::render_gui(void* data)
444 // Updating values computed by process_frame
445 struct magic *vp = (struct magic *)data;
449 C41Window *window = (C41Window *) thread->window;
450 window->lock_window("C41Effect::render_gui");
451 window->update_magic();
452 window->unlock_window();
456 void C41Effect::save_data(KeyFrame *keyframe)
459 output.set_shared_output(keyframe->get_data(), MESSAGESIZE);
461 output.tag.set_title("C41");
462 output.tag.set_property("ACTIVE", config.active);
463 output.tag.set_property("COMPUTE_MAGIC", config.compute_magic);
464 output.tag.set_property("POSTPROC", config.postproc);
465 output.tag.set_property("SHOW_BOX", config.show_box);
467 output.tag.set_property("FIX_MIN_R", config.fix_min_r);
468 output.tag.set_property("FIX_MIN_G", config.fix_min_g);
469 output.tag.set_property("FIX_MIN_B", config.fix_min_b);
470 output.tag.set_property("FIX_LIGHT", config.fix_light);
471 output.tag.set_property("FIX_GAMMA_G", config.fix_gamma_g);
472 output.tag.set_property("FIX_GAMMA_B", config.fix_gamma_b);
473 output.tag.set_property("FIX_COEF1", config.fix_coef1);
474 output.tag.set_property("FIX_COEF2", config.fix_coef2);
475 output.tag.set_property("MIN_ROW", config.min_row);
476 output.tag.set_property("MAX_ROW", config.max_row);
477 output.tag.set_property("MIN_COL", config.min_col);
478 output.tag.set_property("MAX_COL", config.max_col);
480 output.tag.set_title("/C41");
482 output.terminate_string();
485 void C41Effect::read_data(KeyFrame *keyframe)
488 input.set_shared_input(keyframe->get_data(), strlen(keyframe->get_data()));
490 while(!input.read_tag())
492 if( input.tag.title_is("C41") ) {
493 config.active = input.tag.get_property("ACTIVE", config.active);
494 config.compute_magic = input.tag.get_property("COMPUTE_MAGIC", config.compute_magic);
495 config.postproc = input.tag.get_property("POSTPROC", config.postproc);
496 config.show_box = input.tag.get_property("SHOW_BOX", config.show_box);
497 config.fix_min_r = input.tag.get_property("FIX_MIN_R", config.fix_min_r);
498 config.fix_min_g = input.tag.get_property("FIX_MIN_G", config.fix_min_g);
499 config.fix_min_b = input.tag.get_property("FIX_MIN_B", config.fix_min_b);
500 config.fix_light = input.tag.get_property("FIX_LIGHT", config.fix_light);
501 config.fix_gamma_g = input.tag.get_property("FIX_GAMMA_G", config.fix_gamma_g);
502 config.fix_gamma_b = input.tag.get_property("FIX_GAMMA_B", config.fix_gamma_b);
503 config.fix_coef1 = input.tag.get_property("FIX_COEF1", config.fix_coef2);
504 config.fix_coef2 = input.tag.get_property("FIX_COEF2", config.fix_coef2);
505 config.min_row = input.tag.get_property("MIN_ROW", config.min_row);
506 config.max_row = input.tag.get_property("MAX_ROW", config.max_row);
507 config.min_col = input.tag.get_property("MIN_COL", config.min_col);
508 config.max_col = input.tag.get_property("MAX_COL", config.max_col);
513 #if defined(C41_FAST_POW)
515 float C41Effect::myLog2(float i)
518 float LogBodge = 0.346607f;
520 x *= 1.0 / (1 << 23); // 1/pow(2,23);
524 y = (y - y * y) * LogBodge;
528 float C41Effect::myPow2(float i)
530 float PowBodge = 0.33971f;
532 float y = i - floorf(i);
533 y = (y - y * y) * PowBodge;
541 float C41Effect::myPow(float a, float b)
543 return myPow2(b * myLog2(a));
548 void C41Effect::pix_fix(float &pix, float min, float gamma)
553 if( gamma != 1 ) val = POWF(val, gamma);
554 bclamp(val -= config.fix_light, 0, pix_max);
555 if( config.postproc )
556 val = config.fix_coef1 * val + config.fix_coef2;
563 int C41Effect::process_realtime(VFrame *input, VFrame *output)
565 load_configuration();
567 int frame_w = input->get_w(), frame_h = input->get_h();
568 int input_model = input->get_color_model();
569 int has_alpha = BC_CModels::has_alpha(input_model);
570 int color_model = has_alpha ? BC_RGBA_FLOAT : BC_RGB_FLOAT;
572 if( input_model != color_model ) {
574 ( frame->get_w() != frame_w || frame->get_h() != frame_h ||
575 frame->get_color_model() != color_model ) ) {
576 delete frame; frame = 0;
579 frame = new VFrame(frame_w, frame_h, color_model);
580 frame->transfer_from(input);
587 pix_max = BC_CModels::calculate_max(color_model);
588 pix_len = BC_CModels::components(color_model);
590 min_row = config.min_row; bclamp(min_row, 0,frame_h);
591 max_row = config.max_row; bclamp(max_row, 0,frame_h);
592 min_col = config.min_col; bclamp(min_col, 0,frame_w);
593 max_col = config.max_col; bclamp(max_col, 0,frame_w);
595 if( config.compute_magic ) {
596 // Convert frame to RGB for magic computing
598 (tmp_frame->get_w() != frame_w || tmp_frame->get_h() != frame_h) ) {
599 delete tmp_frame; tmp_frame = 0;
602 tmp_frame = new VFrame(frame_w, frame_h, BC_RGB_FLOAT);
604 (blurry_frame->get_w() != frame_w || blurry_frame->get_h() != frame_h) ) {
605 delete blurry_frame; blurry_frame = 0;
608 blurry_frame = new VFrame(frame_w, frame_h, BC_RGB_FLOAT);
610 float **rows = (float **)frame->get_rows();
611 float **tmp_rows = (float **)tmp_frame->get_rows();
612 float **blurry_rows = (float **)blurry_frame->get_rows();
614 for( int i=0; i<frame_h; ++i ) {
615 float *row = rows[i], *tmp = tmp_rows[i];
616 for( int j=frame_w; --j>=0; row+=pix_len ) {
617 *tmp++ = bclip(row[0], 0, pix_max);
618 *tmp++ = bclip(row[1], 0, pix_max);
619 *tmp++ = bclip(row[2], 0, pix_max);
623 // 10 passes of Box blur should be good
624 int dx = 5, dy = 5, y_up, y_dn, x_rt, x_lt;
625 float **src = tmp_rows, **tgt = blurry_rows;
626 for( int pass = 0; pass < 10; pass++ ) {
627 for( int y = 0; y < frame_h; y++ ) {
628 if( (y_up=y-dy) < 0 ) y_up = 0;
629 if( (y_dn=y+dy) >= frame_h ) y_dn = frame_h-1;
630 float *up = src[y_up], *dn = src[y_dn], *row = tgt[y];
631 for( int x = 0; x < frame_w; ++x ) {
632 if( (x_lt=x-dx) < 0 ) x_lt = 0;
633 if( (x_rt=x+dx) >= frame_w ) x_lt = frame_w-1;
634 float *dn_l = dn + 3*x_lt, *dn_r = dn + 3*x_rt;
635 float *up_l = up + 3*x_lt, *up_r = up + 3*x_rt;
636 row[0] = (dn_l[0] + dn_r[0] + up_l[0] + up_r[0]) / 4;
637 row[1] = (dn_l[1] + dn_r[1] + up_l[1] + up_r[1]) / 4;
638 row[2] = (dn_l[2] + dn_r[2] + up_l[2] + up_r[2]) / 4;
642 float **rows = src; src = tgt; tgt = rows;
645 // Shave image: cut off border areas where min max difference
646 // is less than C41_SHAVE_TOLERANCE, starting/ending at C41_SHAVE_MARGIN
648 shave_min_row = shave_min_col = 0;
649 shave_max_col = frame_w;
650 shave_max_row = frame_h;
651 int min_w = frame_w * C41_SHAVE_MARGIN;
652 int max_w = frame_w * (1-C41_SHAVE_MARGIN);
653 int min_h = frame_h * C41_SHAVE_MARGIN;
654 int max_h = frame_h * (1-C41_SHAVE_MARGIN);
656 float yv_min[frame_h], yv_max[frame_h];
657 for( int y=0; y<frame_h; ++y ) {
662 for( int y = 0; y < frame_h; y++ ) {
663 float *row = blurry_rows[y];
664 for( int x = 0; x < frame_w; x++, row += 3 ) {
665 float yv = (row[0] + row[1] + row[2]) / 3;
666 if( yv_min[y] > yv ) yv_min[y] = yv;
667 if( yv_max[y] < yv ) yv_max[y] = yv;
671 for( shave_min_row = min_h; shave_min_row < max_h; shave_min_row++ )
672 if( yv_max[shave_min_row] - yv_min[shave_min_row] > C41_SHAVE_TOLERANCE )
674 for( shave_max_row = max_h - 1; shave_max_row > shave_min_row; shave_max_row-- )
675 if( yv_max[shave_max_row] - yv_min[shave_max_row] > C41_SHAVE_TOLERANCE )
679 float xv_min[frame_w], xv_max[frame_w];
680 for( int x=0; x<frame_w; ++x ) {
685 for( int y = shave_min_row; y < shave_max_row; y++ ) {
686 float *row = blurry_rows[y];
687 for( int x = 0; x < frame_w; x++, row += 3 ) {
688 float xv = (row[0] + row[1] + row[2]) / 3;
689 if( xv_min[x] > xv ) xv_min[x] = xv;
690 if( xv_max[x] < xv ) xv_max[x] = xv;
694 for( shave_min_col = min_w; shave_min_col < max_w; shave_min_col++ )
695 if( xv_max[shave_min_col] - xv_min[shave_min_col] > C41_SHAVE_TOLERANCE )
697 for( shave_max_col = max_w - 1; shave_max_col > shave_min_col; shave_max_col-- )
698 if( xv_max[shave_max_col] - xv_min[shave_max_col] > C41_SHAVE_TOLERANCE )
702 // Compute magic negfix values
703 float minima_r = 50., minima_g = 50., minima_b = 50.;
704 float maxima_r = 0., maxima_g = 0., maxima_b = 0.;
706 // Check if config_parameters are usable
707 if( config.min_col >= config.max_col || config.min_row >= config.max_row ) {
708 min_col = shave_min_col;
709 max_col = shave_max_col;
710 min_row = shave_min_row;
711 max_row = shave_max_row;
714 for( int i = min_row; i < max_row; i++ ) {
715 float *row = blurry_rows[i] + 3 * min_col;
716 for( int j = min_col; j < max_col; j++, row+=3 ) {
717 if( row[0] < minima_r ) minima_r = row[0];
718 if( row[0] > maxima_r ) maxima_r = row[0];
719 if( row[1] < minima_g ) minima_g = row[1];
720 if( row[1] > maxima_g ) maxima_g = row[1];
721 if( row[2] < minima_b ) minima_b = row[2];
722 if( row[2] > maxima_b ) maxima_b = row[2];
725 values.min_r = minima_r; values.max_r = maxima_r;
726 values.min_g = minima_g; values.max_g = maxima_g;
727 values.min_b = minima_b; values.max_b = maxima_b;
728 values.light = maxima_r < 1e-6 ? 1.0 : minima_r / maxima_r;
729 bclamp(minima_r, 1e-6, 1-1e-6); bclamp(maxima_r, 1e-6, 1-1e-6);
730 bclamp(minima_g, 1e-6, 1-1e-6); bclamp(maxima_g, 1e-6, 1-1e-6);
731 bclamp(minima_b, 1e-6, 1-1e-6); bclamp(maxima_b, 1e-6, 1-1e-6);
732 float log_r = logf(maxima_r / minima_r);
733 float log_g = logf(maxima_g / minima_g);
734 float log_b = logf(maxima_b / minima_b);
735 if( log_g < 1e-6 ) log_g = 1e-6;
736 if( log_b < 1e-6 ) log_b = 1e-6;
737 values.gamma_g = log_r / log_g;
738 values.gamma_b = log_r / log_b;
739 values.shave_min_col = shave_min_col;
740 values.shave_max_col = shave_max_col;
741 values.shave_min_row = shave_min_row;
742 values.shave_max_row = shave_max_row;
743 values.coef1 = values.coef2 = -1;
746 send_render_gui(&values);
749 if( config.compute_magic ) {
750 float minima_r = 50., minima_g = 50., minima_b = 50.;
751 float maxima_r = 0., maxima_g = 0., maxima_b = 0.;
753 for( int i = min_row; i < max_row; i++ ) {
754 float *row = (float*)frame->get_rows()[i];
755 row += 3 * shave_min_col;
756 for( int j = min_col; j < max_col; j++, row += 3 ) {
757 if( row[0] < minima_r ) minima_r = row[0];
758 if( row[0] > maxima_r ) maxima_r = row[0];
760 if( row[1] < minima_g ) minima_g = row[1];
761 if( row[1] > maxima_g ) maxima_g = row[1];
763 if( row[2] < minima_b ) minima_b = row[2];
764 if( row[2] > maxima_b ) maxima_b = row[2];
768 // Calculate postprocessing coeficents
769 values.coef2 = minima_r;
770 if( minima_g < values.coef2 ) values.coef2 = minima_g;
771 if( minima_b < values.coef2 ) values.coef2 = minima_b;
772 values.coef1 = maxima_r;
773 if( maxima_g > values.coef1 ) values.coef1 = maxima_g;
774 if( maxima_b > values.coef1 ) values.coef1 = maxima_b;
775 // Try not to overflow RGB601 (235 - 16) / 256 * 0.9
776 float den = values.coef1 - values.coef2;
777 if( fabs(den) < 1e-6 ) den = 1e-6;
778 values.coef1 = 0.770 / den;
779 values.coef2 = 0.065 - values.coef2 * values.coef1;
780 send_render_gui(&values);
783 // Apply the transformation
784 if( config.active ) {
785 for( int i = 0; i < frame_h; i++ ) {
786 float *row = (float*)frame->get_rows()[i];
787 for( int j = 0; j < frame_w; j++, row += pix_len ) {
788 pix_fix(row[0], config.fix_min_r, 1);
789 pix_fix(row[1], config.fix_min_g, config.fix_gamma_g);
790 pix_fix(row[2], config.fix_min_b, config.fix_gamma_b);
795 if( config.show_box ) {
796 EDLSession *session = get_edlsession();
797 int line_w = bmax(session->output_w,session->output_h) / 600 + 1;
798 for( int k=0; k<line_w; ++k ) {
799 float **rows = (float **)frame->get_rows();
800 if( min_row < max_row - 1 ) {
801 float *row1 = (float *)rows[min_row+k];
802 float *row2 = (float *)rows[max_row-k - 1];
804 for( int i = 0; i < frame_w; i++ ) {
805 for( int j = 0; j < 3; j++ ) {
806 row1[j] = pix_max - row1[j];
807 row2[j] = pix_max - row2[j];
818 if( min_col < max_col - 1 ) {
819 int pix1 = pix_len * (min_col+k);
820 int pix2 = pix_len * (max_col-k - 1);
822 for( int i = 0; i < frame_h; i++ ) {
823 float *row1 = rows[i] + pix1;
824 float *row2 = rows[i] + pix2;
826 for( int j = 0; j < 3; j++ ) {
827 row1[j] = pix_max - row1[j];
828 row2[j] = pix_max - row2[j];
839 if( frame != output )
840 output->transfer_from(frame);