cinelerra-5.1/plugins/histogram/histogram.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008-2012 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include <math.h>
  23 #include <stdint.h>
  24 #include <string.h>
  25 #include <unistd.h>
  26
  27 #include "bcdisplayinfo.h"
  28 #include "bcsignals.h"
  29 #include "clip.h"
  30 #include "bchash.h"
  31 #include "filexml.h"
  32 #include "histogram.h"
  33 #include "histogramconfig.h"
  34 #include "histogramwindow.h"
  35 #include "keyframe.h"
  36 #include "language.h"
  37 #include "loadbalance.h"
  38 #include "playback3d.h"
  39 #include "bccolors.h"
  40 #include "vframe.h"
  41 #include "workarounds.h"
  42
  43 #include "aggregated.h"
  44 #include "../colorbalance/aggregated.h"
  45 #include "../interpolate/aggregated.h"
  46 #include "../gamma/aggregated.h"
  47
  48 class HistogramMain;
  49 class HistogramEngine;
  50 class HistogramWindow;
  51
  52
  53
  54
  55
  56 REGISTER_PLUGIN(HistogramMain)
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66 HistogramMain::HistogramMain(PluginServer *server)
  67  : PluginVClient(server)
  68 {
  69
  70         engine = 0;
  71         for(int i = 0; i < HISTOGRAM_MODES; i++)
  72         {
  73                 lookup[i] = 0;
  74                 accum[i] = 0;
  75                 preview_lookup[i] = 0;
  76         }
  77         current_point = -1;
  78         mode = HISTOGRAM_VALUE;
  79         dragging_point = 0;
  80         input = 0;
  81         output = 0;
  82         w = 440;
  83         h = 500;
  84         parade = 0;
  85 }
  86
  87 HistogramMain::~HistogramMain()
  88 {
  89
  90         for(int i = 0; i < HISTOGRAM_MODES;i++)
  91         {
  92                 delete [] lookup[i];
  93                 delete [] accum[i];
  94                 delete [] preview_lookup[i];
  95         }
  96         delete engine;
  97 }
  98
  99 const char* HistogramMain::plugin_title() { return N_("Histogram"); }
 100 int HistogramMain::is_realtime() { return 1; }
 101
 102
 103
 104 NEW_WINDOW_MACRO(HistogramMain, HistogramWindow)
 105
 106 LOAD_CONFIGURATION_MACRO(HistogramMain, HistogramConfig)
 107
 108 void HistogramMain::render_gui(void *data)
 109 {
 110         if(thread)
 111         {
 112 // Process just the RGB values to determine the automatic points or
 113 // all the points if manual
 114                 if(!config.automatic)
 115                 {
 116 // Generate curves for value histogram
 117 // Lock out changes to curves
 118                         ((HistogramWindow*)thread->window)->lock_window("HistogramMain::render_gui 1");
 119                         tabulate_curve(HISTOGRAM_RED, 0);
 120                         tabulate_curve(HISTOGRAM_GREEN, 0);
 121                         tabulate_curve(HISTOGRAM_BLUE, 0);
 122                         ((HistogramWindow*)thread->window)->unlock_window();
 123                 }
 124
 125                 calculate_histogram((VFrame*)data, !config.automatic);
 126
 127
 128                 if(config.automatic)
 129                 {
 130                         calculate_automatic((VFrame*)data);
 131
 132 // Generate curves for value histogram
 133 // Lock out changes to curves
 134                         ((HistogramWindow*)thread->window)->lock_window("HistogramMain::render_gui 1");
 135                         tabulate_curve(HISTOGRAM_RED, 0);
 136                         tabulate_curve(HISTOGRAM_GREEN, 0);
 137                         tabulate_curve(HISTOGRAM_BLUE, 0);
 138                         ((HistogramWindow*)thread->window)->unlock_window();
 139
 140
 141 // Need a second pass to get the luminance values.
 142                         calculate_histogram((VFrame*)data, 1);
 143                 }
 144
 145                 ((HistogramWindow*)thread->window)->lock_window("HistogramMain::render_gui 2");
 146 // Always draw the histogram but don't update widgets if automatic
 147                 ((HistogramWindow*)thread->window)->update(1,
 148                         config.automatic && mode != HISTOGRAM_VALUE,
 149                         config.automatic && mode != HISTOGRAM_VALUE,
 150                         0);
 151
 152                 ((HistogramWindow*)thread->window)->unlock_window();
 153         }
 154 }
 155
 156 void HistogramMain::update_gui()
 157 {
 158         if(thread)
 159         {
 160                 ((HistogramWindow*)thread->window)->lock_window("HistogramMain::update_gui");
 161                 int reconfigure = load_configuration();
 162                 if(reconfigure)
 163                 {
 164                         ((HistogramWindow*)thread->window)->update(1,
 165                                 1,
 166                                 1,
 167                                 1);
 168                 }
 169                 ((HistogramWindow*)thread->window)->unlock_window();
 170         }
 171 }
 172
 173
 174
 175
 176 void HistogramMain::save_data(KeyFrame *keyframe)
 177 {
 178         FileXML output;
 179
 180 // cause data to be stored directly in text
 181         output.set_shared_output(keyframe->xbuf);
 182         output.tag.set_title("HISTOGRAM");
 183
 184         char string[BCTEXTLEN];
 185
 186         output.tag.set_property("AUTOMATIC", config.automatic);
 187         output.tag.set_property("THRESHOLD", config.threshold);
 188         output.tag.set_property("PLOT", config.plot);
 189         output.tag.set_property("SPLIT", config.split);
 190         output.tag.set_property("W", w);
 191         output.tag.set_property("H", h);
 192         output.tag.set_property("PARADE", parade);
 193         output.tag.set_property("MODE", mode);
 194
 195         for(int i = 0; i < HISTOGRAM_MODES; i++)
 196         {
 197                 sprintf(string, "LOW_OUTPUT_%d", i);
 198                 output.tag.set_property(string, config.low_output[i]);
 199                 sprintf(string, "HIGH_OUTPUT_%d", i);
 200                 output.tag.set_property(string, config.high_output[i]);
 201                 sprintf(string, "LOW_INPUT_%d", i);
 202                 output.tag.set_property(string, config.low_input[i]);
 203                 sprintf(string, "HIGH_INPUT_%d", i);
 204                 output.tag.set_property(string, config.high_input[i]);
 205                 sprintf(string, "GAMMA_%d", i);
 206                 output.tag.set_property(string, config.gamma[i]);
 207 //printf("HistogramMain::save_data %d %f %d\n", config.input_min[i], config.input_mid[i], config.input_max[i]);
 208         }
 209
 210         output.append_tag();
 211         output.tag.set_title("/HISTOGRAM");
 212         output.append_tag();
 213         output.append_newline();
 214         output.terminate_string();
 215 }
 216
 217 void HistogramMain::read_data(KeyFrame *keyframe)
 218 {
 219         FileXML input;
 220
 221         input.set_shared_input(keyframe->xbuf);
 222
 223         int result = 0;
 224
 225
 226         while(!result)
 227         {
 228                 result = input.read_tag();
 229
 230                 if(!result)
 231                 {
 232                         if(input.tag.title_is("HISTOGRAM"))
 233                         {
 234                                 config.automatic = input.tag.get_property("AUTOMATIC", config.automatic);
 235                                 config.threshold = input.tag.get_property("THRESHOLD", config.threshold);
 236                                 config.plot = input.tag.get_property("PLOT", config.plot);
 237                                 config.split = input.tag.get_property("SPLIT", config.split);
 238
 239                                 if(is_defaults())
 240                                 {
 241                                         w = input.tag.get_property("W", w);
 242                                         h = input.tag.get_property("H", h);
 243                                         parade = input.tag.get_property("PARADE", parade);
 244                                         mode = input.tag.get_property("MODE", mode);
 245                                 }
 246
 247                                 char string[BCTEXTLEN];
 248                                 for(int i = 0; i < HISTOGRAM_MODES; i++)
 249                                 {
 250                                         sprintf(string, "LOW_OUTPUT_%d", i);
 251                                         config.low_output[i] = input.tag.get_property(string, config.low_output[i]);
 252                                         sprintf(string, "HIGH_OUTPUT_%d", i);
 253                                         config.high_output[i] = input.tag.get_property(string, config.high_output[i]);
 254                                         sprintf(string, "GAMMA_%d", i);
 255                                         config.gamma[i] = input.tag.get_property(string, config.gamma[i]);
 256
 257                                         if(i == HISTOGRAM_VALUE || !config.automatic)
 258                                         {
 259                                                 sprintf(string, "LOW_INPUT_%d", i);
 260                                                 config.low_input[i] = input.tag.get_property(string, config.low_input[i]);
 261                                                 sprintf(string, "HIGH_INPUT_%d", i);
 262                                                 config.high_input[i] = input.tag.get_property(string, config.high_input[i]);
 263                                         }
 264 //printf("HistogramMain::read_data %d %f %d\n", config.input_min[i], config.input_mid[i], config.input_max[i]);
 265                                 }
 266                         }
 267                 }
 268         }
 269
 270         config.boundaries();
 271
 272 }
 273
 274 float HistogramMain::calculate_level(float input,
 275         int mode,
 276         int use_value)
 277 {
 278         float output = 0.0;
 279
 280 // Scale to input range
 281         if(!EQUIV(config.high_input[mode], config.low_input[mode]))
 282         {
 283                 output = (input - config.low_input[mode]) /
 284                         (config.high_input[mode] - config.low_input[mode]);
 285         }
 286         else
 287         {
 288                 output = input;
 289         }
 290
 291
 292
 293         if(!EQUIV(config.gamma[mode], 0))
 294         {
 295                 output = pow(output, 1.0 / config.gamma[mode]);
 296                 CLAMP(output, 0, 1.0);
 297         }
 298
 299 // Apply value curve
 300         if(use_value && mode != HISTOGRAM_VALUE)
 301         {
 302                 output = calculate_level(output, HISTOGRAM_VALUE, 0);
 303         }
 304
 305
 306
 307
 308 // scale to output range
 309         if(!EQUIV(config.low_output[mode], config.high_output[mode]))
 310         {
 311                 output = output * (config.high_output[mode] - config.low_output[mode]) +
 312                         config.low_output[mode];
 313         }
 314
 315         CLAMP(output, 0, 1.0);
 316
 317         return output;
 318 }
 319
 320
 321
 322 void HistogramMain::calculate_histogram(VFrame *data, int do_value)
 323 {
 324
 325         if(!engine) engine = new HistogramEngine(this,
 326                 get_project_smp() + 1,
 327                 get_project_smp() + 1);
 328
 329         if(!accum[0])
 330         {
 331                 for(int i = 0; i < HISTOGRAM_MODES; i++)
 332                         accum[i] = new int[HISTOGRAM_SLOTS];
 333         }
 334
 335         engine->process_packages(HistogramEngine::HISTOGRAM, data, do_value);
 336
 337         for(int i = 0; i < engine->get_total_clients(); i++)
 338         {
 339                 HistogramUnit *unit = (HistogramUnit*)engine->get_client(i);
 340
 341                 if(i == 0)
 342                 {
 343                         for(int j = 0; j < HISTOGRAM_MODES; j++)
 344                         {
 345                                 memcpy(accum[j], unit->accum[j], sizeof(int) * HISTOGRAM_SLOTS);
 346                         }
 347                 }
 348                 else
 349                 {
 350                         for(int j = 0; j < HISTOGRAM_MODES; j++)
 351                         {
 352                                 int *out = accum[j];
 353                                 int *in = unit->accum[j];
 354                                 for(int k = 0; k < HISTOGRAM_SLOTS; k++)
 355                                         out[k] += in[k];
 356                         }
 357                 }
 358         }
 359
 360 // Remove top and bottom from calculations.  Doesn't work in high
 361 // precision colormodels.
 362         for(int i = 0; i < HISTOGRAM_MODES; i++)
 363         {
 364                 accum[i][0] = 0;
 365                 accum[i][HISTOGRAM_SLOTS - 1] = 0;
 366         }
 367 }
 368
 369
 370 void HistogramMain::calculate_automatic(VFrame *data)
 371 {
 372         calculate_histogram(data, 0);
 373         config.reset_points(1);
 374
 375 // Do each channel
 376         for(int i = 0; i < 3; i++)
 377         {
 378                 int *accum = this->accum[i];
 379                 int pixels = data->get_w() * data->get_h();
 380                 float white_fraction = 1.0 - (1.0 - config.threshold) / 2;
 381                 int threshold = (int)(white_fraction * pixels);
 382                 int total = 0;
 383                 float max_level = 1.0;
 384                 float min_level = 0.0;
 385
 386 // Get histogram slot above threshold of pixels
 387                 for(int j = 0; j < HISTOGRAM_SLOTS; j++)
 388                 {
 389                         total += accum[j];
 390                         if(total >= threshold)
 391                         {
 392                                 max_level = (float)j / HISTOGRAM_SLOTS * FLOAT_RANGE + HIST_MIN_INPUT;
 393                                 break;
 394                         }
 395                 }
 396
 397 // Get slot below 99% of pixels
 398                 total = 0;
 399                 for(int j = HISTOGRAM_SLOTS - 1; j >= 0; j--)
 400                 {
 401                         total += accum[j];
 402                         if(total >= threshold)
 403                         {
 404                                 min_level = (float)j / HISTOGRAM_SLOTS * FLOAT_RANGE + HIST_MIN_INPUT;
 405                                 break;
 406                         }
 407                 }
 408
 409
 410                 config.low_input[i] = min_level;
 411                 config.high_input[i] = max_level;
 412         }
 413 }
 414
 415
 416
 417
 418
 419 int HistogramMain::calculate_use_opengl()
 420 {
 421 // glHistogram doesn't work.
 422         int result = get_use_opengl() &&
 423                 !config.automatic &&
 424                 (!config.plot || !gui_open());
 425         return result;
 426 }
 427
 428
 429 int HistogramMain::process_buffer(VFrame *frame,
 430         int64_t start_position,
 431         double frame_rate)
 432 {
 433         int need_reconfigure = load_configuration();
 434
 435
 436
 437         int use_opengl = calculate_use_opengl();
 438
 439 //printf("%d\n", use_opengl);
 440         read_frame(frame,
 441                 0,
 442                 start_position,
 443                 frame_rate,
 444                 use_opengl);
 445
 446 // Apply histogram in hardware
 447         if(use_opengl) return run_opengl();
 448
 449         if(!engine) engine = new HistogramEngine(this,
 450                 get_project_smp() + 1,
 451                 get_project_smp() + 1);
 452         this->input = frame;
 453         this->output = frame;
 454 // Always plot to set the curves if automatic
 455         if(config.plot || config.automatic) send_render_gui(frame);
 456
 457 // Generate tables here.  The same table is used by many packages to render
 458 // each horizontal stripe.  Need to cover the entire output range in  each
 459 // table to avoid green borders
 460
 461
 462         if(need_reconfigure ||
 463                 !lookup[0] ||
 464                 config.automatic)
 465         {
 466 // Calculate new curves
 467                 if(config.automatic)
 468                 {
 469                         calculate_automatic(input);
 470                 }
 471
 472
 473 // Generate transfer tables with value function for integer colormodels.
 474                 for(int i = 0; i < 3; i++)
 475                         tabulate_curve(i, 1);
 476         }
 477
 478 // printf("HistogramMain::process_buffer %d %f %f %f  %f %f %f  %f %f %f\n",
 479 // __LINE__,
 480 // config.low_input[HISTOGRAM_RED],
 481 // config.gamma[HISTOGRAM_RED],
 482 // config.high_input[HISTOGRAM_RED],
 483 // config.low_input[HISTOGRAM_GREEN],
 484 // config.gamma[HISTOGRAM_GREEN],
 485 // config.high_input[HISTOGRAM_GREEN],
 486 // config.low_input[HISTOGRAM_BLUE],
 487 // config.gamma[HISTOGRAM_BLUE],
 488 // config.high_input[HISTOGRAM_BLUE]);
 489
 490
 491
 492 // Apply histogram
 493         engine->process_packages(HistogramEngine::APPLY, input, 0);
 494
 495
 496         return 0;
 497 }
 498
 499 void HistogramMain::tabulate_curve(int subscript, int use_value)
 500 {
 501         int i;
 502         if(!lookup[subscript])
 503                 lookup[subscript] = new int[HISTOGRAM_SLOTS];
 504         if(!preview_lookup[subscript])
 505                 preview_lookup[subscript] = new int[HISTOGRAM_SLOTS];
 506
 507 //printf("HistogramMain::tabulate_curve %d input=%p\n", __LINE__, input);
 508
 509
 510 // Generate lookup tables for integer colormodels
 511         if(input)
 512         {
 513                 switch(input->get_color_model())
 514                 {
 515                         case BC_RGB888:
 516                         case BC_RGBA8888:
 517                                 for(i = 0; i < 0x100; i++)
 518                                 {
 519                                         lookup[subscript][i] =
 520                                                 (int)(calculate_level((float)i / 0xff, subscript, use_value) *
 521                                                 0xff);
 522                                         CLAMP(lookup[subscript][i], 0, 0xff);
 523                                 }
 524                                 break;
 525 // All other integer colormodels are converted to 16 bit RGB
 526                         default:
 527                                 for(i = 0; i < 0x10000; i++)
 528                                 {
 529                                         lookup[subscript][i] =
 530                                                 (int)(calculate_level((float)i / 0xffff, subscript, use_value) *
 531                                                 0xffff);
 532                                         CLAMP(lookup[subscript][i], 0, 0xffff);
 533                                 }
 534 // for(i = 0; i < 0x100; i++)
 535 // {
 536 // if(subscript == HISTOGRAM_BLUE) printf("%d ", lookup[subscript][i * 0x100]);
 537 // }
 538 // if(subscript == HISTOGRAM_BLUE) printf("\n");
 539
 540                                 break;
 541                 }
 542         }
 543
 544 // Lookup table for preview only used for GUI
 545         if(!use_value)
 546         {
 547                 for(i = 0; i < 0x10000; i++)
 548                 {
 549                         preview_lookup[subscript][i] =
 550                                 (int)(calculate_level((float)i / 0xffff, subscript, use_value) *
 551                                 0xffff);
 552                         CLAMP(preview_lookup[subscript][i], 0, 0xffff);
 553                 }
 554         }
 555 }
 556
 557 int HistogramMain::handle_opengl()
 558 {
 559 #ifdef HAVE_GL
 560 // Functions to get pixel from either previous effect or texture
 561         static const char *histogram_get_pixel1 =
 562                 "vec4 histogram_get_pixel()\n"
 563                 "{\n"
 564                 "       return gl_FragColor;\n"
 565                 "}\n";
 566
 567         static const char *histogram_get_pixel2 =
 568                 "uniform sampler2D tex;\n"
 569                 "vec4 histogram_get_pixel()\n"
 570                 "{\n"
 571                 "       return texture2D(tex, gl_TexCoord[0].st);\n"
 572                 "}\n";
 573
 574         static const char *head_frag =
 575                 "uniform vec4 low_input;\n"
 576                 "uniform vec4 high_input;\n"
 577                 "uniform vec4 gamma;\n"
 578                 "uniform vec4 low_output;\n"
 579                 "uniform vec4 output_scale;\n"
 580                 "void main()\n"
 581                 "{\n"
 582                 "       float temp = 0.0;\n";
 583
 584         static const char *get_rgb_frag =
 585                 "       vec4 pixel = histogram_get_pixel();\n";
 586
 587         static const char *get_yuv_frag =
 588                 "       vec4 pixel = histogram_get_pixel();\n"
 589                         YUV_TO_RGB_FRAG("pixel");
 590
 591 #define APPLY_INPUT_CURVE(PIXEL, LOW_INPUT, HIGH_INPUT, GAMMA) \
 592                 "// apply input curve\n" \
 593                 "       temp = (" PIXEL " - " LOW_INPUT ") / \n" \
 594                 "               (" HIGH_INPUT " - " LOW_INPUT ");\n" \
 595                 "       temp = max(temp, 0.0);\n" \
 596                 "       " PIXEL " = pow(temp, 1.0 / " GAMMA ");\n"
 597
 598
 599
 600         static const char *apply_histogram_frag =
 601                 APPLY_INPUT_CURVE("pixel.r", "low_input.r", "high_input.r", "gamma.r")
 602                 APPLY_INPUT_CURVE("pixel.g", "low_input.g", "high_input.g", "gamma.g")
 603                 APPLY_INPUT_CURVE("pixel.b", "low_input.b", "high_input.b", "gamma.b")
 604                 "// apply output curve\n"
 605                 "       pixel.rgb *= output_scale.rgb;\n"
 606                 "       pixel.rgb += low_output.rgb;\n"
 607                 APPLY_INPUT_CURVE("pixel.r", "low_input.a", "high_input.a", "gamma.a")
 608                 APPLY_INPUT_CURVE("pixel.g", "low_input.a", "high_input.a", "gamma.a")
 609                 APPLY_INPUT_CURVE("pixel.b", "low_input.a", "high_input.a", "gamma.a")
 610                 "// apply output curve\n"
 611                 "       pixel.rgb *= vec3(output_scale.a, output_scale.a, output_scale.a);\n"
 612                 "       pixel.rgb += vec3(low_output.a, low_output.a, low_output.a);\n";
 613
 614         static const char *put_rgb_frag =
 615                 "       gl_FragColor = pixel;\n"
 616                 "}\n";
 617
 618         static const char *put_yuv_frag =
 619                         RGB_TO_YUV_FRAG("pixel")
 620                 "       gl_FragColor = pixel;\n"
 621                 "}\n";
 622
 623
 624
 625         get_output()->to_texture();
 626         get_output()->enable_opengl();
 627
 628         const char *shader_stack[16];
 629         memset(shader_stack,0, sizeof(shader_stack));
 630         int current_shader = 0;
 631
 632         int need_color_matrix = BC_CModels::is_yuv(get_output()->get_color_model()) ? 1 : 0;
 633         if( need_color_matrix )
 634                 shader_stack[current_shader++] = bc_gl_colors;
 635
 636         int aggregate_interpolation = 0;
 637         int aggregate_gamma = 0;
 638         int aggregate_colorbalance = 0;
 639 // All aggregation possibilities must be accounted for because unsupported
 640 // effects can get in between the aggregation members.
 641         if(!strcmp(get_output()->get_prev_effect(2), _("Interpolate Pixels")) &&
 642                 !strcmp(get_output()->get_prev_effect(1), _("Gamma")) &&
 643                 !strcmp(get_output()->get_prev_effect(0), _("Color Balance")))
 644         {
 645                 aggregate_interpolation = 1;
 646                 aggregate_gamma = 1;
 647                 aggregate_colorbalance = 1;
 648         }
 649         else
 650         if(!strcmp(get_output()->get_prev_effect(1), _("Gamma")) &&
 651                 !strcmp(get_output()->get_prev_effect(0), _("Color Balance")))
 652         {
 653                 aggregate_gamma = 1;
 654                 aggregate_colorbalance = 1;
 655         }
 656         else
 657         if(!strcmp(get_output()->get_prev_effect(1), _("Interpolate Pixels")) &&
 658                 !strcmp(get_output()->get_prev_effect(0), _("Gamma")))
 659         {
 660                 aggregate_interpolation = 1;
 661                 aggregate_gamma = 1;
 662         }
 663         else
 664         if(!strcmp(get_output()->get_prev_effect(1), _("Interpolate Pixels")) &&
 665                 !strcmp(get_output()->get_prev_effect(0), _("Color Balance")))
 666         {
 667                 aggregate_interpolation = 1;
 668                 aggregate_colorbalance = 1;
 669         }
 670         else
 671         if(!strcmp(get_output()->get_prev_effect(0), _("Interpolate Pixels")))
 672                 aggregate_interpolation = 1;
 673         else
 674         if(!strcmp(get_output()->get_prev_effect(0), _("Gamma")))
 675                 aggregate_gamma = 1;
 676         else
 677         if(!strcmp(get_output()->get_prev_effect(0), _("Color Balance")))
 678                 aggregate_colorbalance = 1;
 679
 680 // The order of processing is fixed by this sequence
 681         if(aggregate_interpolation)
 682                 INTERPOLATE_COMPILE(shader_stack, current_shader);
 683
 684         if(aggregate_gamma)
 685                 GAMMA_COMPILE(shader_stack, current_shader,
 686                         aggregate_interpolation);
 687
 688         if(aggregate_colorbalance)
 689                 COLORBALANCE_COMPILE(shader_stack, current_shader,
 690                         aggregate_interpolation || aggregate_gamma);
 691
 692         shader_stack[current_shader++] =
 693                 aggregate_interpolation || aggregate_gamma || aggregate_colorbalance ?
 694                         histogram_get_pixel1 : histogram_get_pixel2;
 695
 696         shader_stack[current_shader++] = head_frag;
 697         shader_stack[current_shader++] = BC_CModels::is_yuv(get_output()->get_color_model()) ?
 698                         get_yuv_frag : get_rgb_frag;
 699         shader_stack[current_shader++] = apply_histogram_frag;
 700         shader_stack[current_shader++] = BC_CModels::is_yuv(get_output()->get_color_model()) ?
 701                         put_yuv_frag : put_rgb_frag;
 702
 703         shader_stack[current_shader] = 0;
 704         unsigned int shader = VFrame::make_shader(shader_stack);
 705
 706 // printf("HistogramMain::handle_opengl %d %d %d %d shader=%d\n",
 707 // aggregate_interpolation,
 708 // aggregate_gamma,
 709 // aggregate_colorbalance,
 710 // current_shader,
 711 // shader);
 712
 713         float low_input[4];
 714         float high_input[4];
 715         float gamma[4];
 716         float low_output[4];
 717         float output_scale[4];
 718
 719
 720 // printf("min x    min y    max x    max y\n");
 721 // printf("%f %f %f %f\n", input_min_r[0], input_min_r[1], input_max_r[0], input_max_r[1]);
 722 // printf("%f %f %f %f\n", input_min_g[0], input_min_g[1], input_max_g[0], input_max_g[1]);
 723 // printf("%f %f %f %f\n", input_min_b[0], input_min_b[1], input_max_b[0], input_max_b[1]);
 724 // printf("%f %f %f %f\n", input_min_v[0], input_min_v[1], input_max_v[0], input_max_v[1]);
 725
 726         for(int i = 0; i < HISTOGRAM_MODES; i++)
 727         {
 728                 low_input[i] = config.low_input[i];
 729                 high_input[i] = config.high_input[i];
 730                 gamma[i] = config.gamma[i];
 731                 low_output[i] = config.low_output[i];
 732                 output_scale[i] = config.high_output[i] - config.low_output[i];
 733         }
 734
 735         if(shader > 0)
 736         {
 737                 glUseProgram(shader);
 738                 glUniform1i(glGetUniformLocation(shader, "tex"), 0);
 739                 if(aggregate_gamma) GAMMA_UNIFORMS(shader);
 740                 if(aggregate_interpolation) INTERPOLATE_UNIFORMS(shader);
 741                 if(aggregate_colorbalance) COLORBALANCE_UNIFORMS(shader);
 742                 glUniform4fv(glGetUniformLocation(shader, "low_input"), 1, low_input);
 743                 glUniform4fv(glGetUniformLocation(shader, "high_input"), 1, high_input);
 744                 glUniform4fv(glGetUniformLocation(shader, "gamma"), 1, gamma);
 745                 glUniform4fv(glGetUniformLocation(shader, "low_output"), 1, low_output);
 746                 glUniform4fv(glGetUniformLocation(shader, "output_scale"), 1, output_scale);
 747                 if( need_color_matrix ) BC_GL_COLORS(shader);
 748         }
 749
 750         get_output()->init_screen();
 751         get_output()->bind_texture(0);
 752
 753         glDisable(GL_BLEND);
 754
 755 // Draw the affected half
 756         if(config.split)
 757         {
 758                 glBegin(GL_TRIANGLES);
 759                 glNormal3f(0, 0, 1.0);
 760
 761                 glTexCoord2f(0.0 / get_output()->get_texture_w(),
 762                         0.0 / get_output()->get_texture_h());
 763                 glVertex3f(0.0, -(float)get_output()->get_h(), 0);
 764
 765
 766                 glTexCoord2f((float)get_output()->get_w() / get_output()->get_texture_w(),
 767                         (float)get_output()->get_h() / get_output()->get_texture_h());
 768                 glVertex3f((float)get_output()->get_w(), -0.0, 0);
 769
 770                 glTexCoord2f(0.0 / get_output()->get_texture_w(),
 771                         (float)get_output()->get_h() / get_output()->get_texture_h());
 772                 glVertex3f(0.0, -0.0, 0);
 773
 774
 775                 glEnd();
 776         }
 777         else
 778         {
 779                 get_output()->draw_texture();
 780         }
 781
 782         glUseProgram(0);
 783
 784 // Draw the unaffected half
 785         if(config.split)
 786         {
 787                 glBegin(GL_TRIANGLES);
 788                 glNormal3f(0, 0, 1.0);
 789
 790
 791                 glTexCoord2f(0.0 / get_output()->get_texture_w(),
 792                         0.0 / get_output()->get_texture_h());
 793                 glVertex3f(0.0, -(float)get_output()->get_h(), 0);
 794
 795                 glTexCoord2f((float)get_output()->get_w() / get_output()->get_texture_w(),
 796                         0.0 / get_output()->get_texture_h());
 797                 glVertex3f((float)get_output()->get_w(),
 798                         -(float)get_output()->get_h(), 0);
 799
 800                 glTexCoord2f((float)get_output()->get_w() / get_output()->get_texture_w(),
 801                         (float)get_output()->get_h() / get_output()->get_texture_h());
 802                 glVertex3f((float)get_output()->get_w(), -0.0, 0);
 803
 804
 805                 glEnd();
 806         }
 807
 808         get_output()->set_opengl_state(VFrame::SCREEN);
 809 #endif
 810         return 0;
 811 }
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824 HistogramPackage::HistogramPackage()
 825  : LoadPackage()
 826 {
 827 }
 828
 829
 830
 831
 832 HistogramUnit::HistogramUnit(HistogramEngine *server,
 833         HistogramMain *plugin)
 834  : LoadClient(server)
 835 {
 836         this->plugin = plugin;
 837         this->server = server;
 838         for(int i = 0; i < HISTOGRAM_MODES; i++)
 839                 accum[i] = new int[HISTOGRAM_SLOTS];
 840 }
 841
 842 HistogramUnit::~HistogramUnit()
 843 {
 844         for(int i = 0; i < HISTOGRAM_MODES; i++)
 845                 delete [] accum[i];
 846 }
 847
 848 void HistogramUnit::process_package(LoadPackage *package)
 849 {
 850         HistogramPackage *pkg = (HistogramPackage*)package;
 851
 852         if(server->operation == HistogramEngine::HISTOGRAM)
 853         {
 854                 int do_value = server->do_value;
 855
 856
 857 #define HISTOGRAM_HEAD(type) \
 858 { \
 859         for(int i = pkg->start; i < pkg->end; i++) \
 860         { \
 861                 type *row = (type*)data->get_rows()[i]; \
 862                 for(int j = 0; j < w; j++) \
 863                 {
 864
 865 #define HISTOGRAM_TAIL(components) \
 866 /* Value takes the maximum of the output RGB values */ \
 867                         if(do_value) \
 868                         { \
 869                                 CLAMP(r, 0, HISTOGRAM_SLOTS - 1); \
 870                                 CLAMP(g, 0, HISTOGRAM_SLOTS - 1); \
 871                                 CLAMP(b, 0, HISTOGRAM_SLOTS - 1); \
 872                                 r_out = lookup_r[r]; \
 873                                 g_out = lookup_g[g]; \
 874                                 b_out = lookup_b[b]; \
 875 /*                              v = (r * 76 + g * 150 + b * 29) >> 8; */ \
 876                                 v = MAX(r_out, g_out); \
 877                                 v = MAX(v, b_out); \
 878                                 v += -HISTOGRAM_MIN * 0xffff / 100; \
 879                                 CLAMP(v, 0, HISTOGRAM_SLOTS - 1); \
 880                                 accum_v[v]++; \
 881                         } \
 882  \
 883                         r += -HISTOGRAM_MIN * 0xffff / 100; \
 884                         g += -HISTOGRAM_MIN * 0xffff / 100; \
 885                         b += -HISTOGRAM_MIN * 0xffff / 100; \
 886                         CLAMP(r, 0, HISTOGRAM_SLOTS - 1); \
 887                         CLAMP(g, 0, HISTOGRAM_SLOTS - 1); \
 888                         CLAMP(b, 0, HISTOGRAM_SLOTS - 1); \
 889                         accum_r[r]++; \
 890                         accum_g[g]++; \
 891                         accum_b[b]++; \
 892                         row += components; \
 893                 } \
 894         } \
 895 }
 896
 897
 898
 899
 900                 VFrame *data = server->data;
 901                 int w = data->get_w();
 902                 //int h = data->get_h();
 903                 int *accum_r = accum[HISTOGRAM_RED];
 904                 int *accum_g = accum[HISTOGRAM_GREEN];
 905                 int *accum_b = accum[HISTOGRAM_BLUE];
 906                 int *accum_v = accum[HISTOGRAM_VALUE];
 907                 int32_t r, g, b, y, u, v;
 908                 int r_out, g_out, b_out;
 909                 int *lookup_r = plugin->preview_lookup[HISTOGRAM_RED];
 910                 int *lookup_g = plugin->preview_lookup[HISTOGRAM_GREEN];
 911                 int *lookup_b = plugin->preview_lookup[HISTOGRAM_BLUE];
 912
 913                 switch(data->get_color_model())
 914                 {
 915                         case BC_RGB888:
 916                                 HISTOGRAM_HEAD(unsigned char)
 917                                 r = (row[0] << 8) | row[0];
 918                                 g = (row[1] << 8) | row[1];
 919                                 b = (row[2] << 8) | row[2];
 920                                 HISTOGRAM_TAIL(3)
 921                                 break;
 922                         case BC_RGB_FLOAT:
 923                                 HISTOGRAM_HEAD(float)
 924                                 r = (int)(row[0] * 0xffff);
 925                                 g = (int)(row[1] * 0xffff);
 926                                 b = (int)(row[2] * 0xffff);
 927                                 HISTOGRAM_TAIL(3)
 928                                 break;
 929                         case BC_YUV888:
 930                                 HISTOGRAM_HEAD(unsigned char)
 931                                 y = (row[0] << 8) | row[0];
 932                                 u = (row[1] << 8) | row[1];
 933                                 v = (row[2] << 8) | row[2];
 934                                 YUV::yuv.yuv_to_rgb_16(r, g, b, y, u, v);
 935                                 HISTOGRAM_TAIL(3)
 936                                 break;
 937                         case BC_RGBA8888:
 938                                 HISTOGRAM_HEAD(unsigned char)
 939                                 r = (row[0] << 8) | row[0];
 940                                 g = (row[1] << 8) | row[1];
 941                                 b = (row[2] << 8) | row[2];
 942                                 HISTOGRAM_TAIL(4)
 943                                 break;
 944                         case BC_RGBA_FLOAT:
 945                                 HISTOGRAM_HEAD(float)
 946                                 r = (int)(row[0] * 0xffff);
 947                                 g = (int)(row[1] * 0xffff);
 948                                 b = (int)(row[2] * 0xffff);
 949                                 HISTOGRAM_TAIL(4)
 950                                 break;
 951                         case BC_YUVA8888:
 952                                 HISTOGRAM_HEAD(unsigned char)
 953                                 y = (row[0] << 8) | row[0];
 954                                 u = (row[1] << 8) | row[1];
 955                                 v = (row[2] << 8) | row[2];
 956                                 YUV::yuv.yuv_to_rgb_16(r, g, b, y, u, v);
 957                                 HISTOGRAM_TAIL(4)
 958                                 break;
 959                         case BC_RGB161616:
 960                                 HISTOGRAM_HEAD(uint16_t)
 961                                 r = row[0];
 962                                 g = row[1];
 963                                 b = row[2];
 964                                 HISTOGRAM_TAIL(3)
 965                                 break;
 966                         case BC_YUV161616:
 967                                 HISTOGRAM_HEAD(uint16_t)
 968                                 y = row[0];
 969                                 u = row[1];
 970                                 v = row[2];
 971                                 YUV::yuv.yuv_to_rgb_16(r, g, b, y, u, v);
 972                                 HISTOGRAM_TAIL(3)
 973                                 break;
 974                         case BC_RGBA16161616:
 975                                 HISTOGRAM_HEAD(uint16_t)
 976                                 r = row[0];
 977                                 g = row[1];
 978                                 b = row[2];
 979                                 HISTOGRAM_TAIL(3)
 980                                 break;
 981                         case BC_YUVA16161616:
 982                                 HISTOGRAM_HEAD(uint16_t)
 983                                 y = row[0];
 984                                 u = row[1];
 985                                 v = row[2];
 986                                 YUV::yuv.yuv_to_rgb_16(r, g, b, y, u, v);
 987                                 HISTOGRAM_TAIL(4)
 988                                 break;
 989                 }
 990         }
 991         else
 992         if(server->operation == HistogramEngine::APPLY)
 993         {
 994
 995
 996
 997 #define PROCESS(type, components) \
 998 { \
 999         for(int i = pkg->start; i < pkg->end; i++) \
1000         { \
1001                 type *row = (type*)input->get_rows()[i]; \
1002                 for(int j = 0; j < w; j++) \
1003                 { \
1004                         if ( plugin->config.split && ((j + i * w / h) < w) ) \
1005                         continue; \
1006                         row[0] = lookup_r[row[0]]; \
1007                         row[1] = lookup_g[row[1]]; \
1008                         row[2] = lookup_b[row[2]]; \
1009                         row += components; \
1010                 } \
1011         } \
1012 }
1013
1014 #define PROCESS_YUV(type, components, max) \
1015 { \
1016         for(int i = pkg->start; i < pkg->end; i++) \
1017         { \
1018                 type *row = (type*)input->get_rows()[i]; \
1019                 for(int j = 0; j < w; j++) \
1020                 { \
1021                         if ( plugin->config.split && ((j + i * w / h) < w) ) \
1022                         continue; \
1023 /* Convert to 16 bit RGB */ \
1024                         if(max == 0xff) \
1025                         { \
1026                                 y = (row[0] << 8) | row[0]; \
1027                                 u = (row[1] << 8) | row[1]; \
1028                                 v = (row[2] << 8) | row[2]; \
1029                         } \
1030                         else \
1031                         { \
1032                                 y = row[0]; \
1033                                 u = row[1]; \
1034                                 v = row[2]; \
1035                         } \
1036  \
1037                         YUV::yuv.yuv_to_rgb_16(r, g, b, y, u, v); \
1038  \
1039 /* Look up in RGB domain */ \
1040                         r = lookup_r[r]; \
1041                         g = lookup_g[g]; \
1042                         b = lookup_b[b]; \
1043  \
1044 /* Convert to 16 bit YUV */ \
1045                         YUV::yuv.rgb_to_yuv_16(r, g, b, y, u, v); \
1046  \
1047                         if(max == 0xff) \
1048                         { \
1049                                 row[0] = y >> 8; \
1050                                 row[1] = u >> 8; \
1051                                 row[2] = v >> 8; \
1052                         } \
1053                         else \
1054                         { \
1055                                 row[0] = y; \
1056                                 row[1] = u; \
1057                                 row[2] = v; \
1058                         } \
1059                         row += components; \
1060                 } \
1061         } \
1062 }
1063
1064 #define PROCESS_FLOAT(components) \
1065 { \
1066         for(int i = pkg->start; i < pkg->end; i++) \
1067         { \
1068                 float *row = (float*)input->get_rows()[i]; \
1069                 for(int j = 0; j < w; j++) \
1070                 { \
1071                         if ( plugin->config.split && ((j + i * w / h) < w) ) \
1072                         continue; \
1073                         float r = row[0]; \
1074                         float g = row[1]; \
1075                         float b = row[2]; \
1076  \
1077                         r = plugin->calculate_level(r, HISTOGRAM_RED, 1); \
1078                         g = plugin->calculate_level(g, HISTOGRAM_GREEN, 1); \
1079                         b = plugin->calculate_level(b, HISTOGRAM_BLUE, 1); \
1080  \
1081                         row[0] = r; \
1082                         row[1] = g; \
1083                         row[2] = b; \
1084  \
1085                         row += components; \
1086                 } \
1087         } \
1088 }
1089
1090
1091                 VFrame *input = plugin->input;
1092                 //VFrame *output = plugin->output;
1093                 int w = input->get_w();
1094                 int h = input->get_h();
1095                 int *lookup_r = plugin->lookup[0];
1096                 int *lookup_g = plugin->lookup[1];
1097                 int *lookup_b = plugin->lookup[2];
1098                 int r, g, b, y, u, v;
1099                 switch(input->get_color_model())
1100                 {
1101                         case BC_RGB888:
1102                                 PROCESS(unsigned char, 3)
1103                                 break;
1104                         case BC_RGB_FLOAT:
1105                                 PROCESS_FLOAT(3);
1106                                 break;
1107                         case BC_RGBA8888:
1108                                 PROCESS(unsigned char, 4)
1109                                 break;
1110                         case BC_RGBA_FLOAT:
1111                                 PROCESS_FLOAT(4);
1112                                 break;
1113                         case BC_RGB161616:
1114                                 PROCESS(uint16_t, 3)
1115                                 break;
1116                         case BC_RGBA16161616:
1117                                 PROCESS(uint16_t, 4)
1118                                 break;
1119                         case BC_YUV888:
1120                                 PROCESS_YUV(unsigned char, 3, 0xff)
1121                                 break;
1122                         case BC_YUVA8888:
1123                                 PROCESS_YUV(unsigned char, 4, 0xff)
1124                                 break;
1125                         case BC_YUV161616:
1126                                 PROCESS_YUV(uint16_t, 3, 0xffff)
1127                                 break;
1128                         case BC_YUVA16161616:
1129                                 PROCESS_YUV(uint16_t, 4, 0xffff)
1130                                 break;
1131                 }
1132         }
1133 }
1134
1135
1136
1137
1138
1139
1140 HistogramEngine::HistogramEngine(HistogramMain *plugin,
1141         int total_clients,
1142         int total_packages)
1143  : LoadServer(total_clients, total_packages)
1144 {
1145         this->plugin = plugin;
1146 }
1147
1148 void HistogramEngine::init_packages()
1149 {
1150         switch(operation)
1151         {
1152                 case HISTOGRAM:
1153                         total_size = data->get_h();
1154                         break;
1155                 case APPLY:
1156                         total_size = data->get_h();
1157                         break;
1158         }
1159
1160
1161         //int package_size = (int)((float)total_size / get_total_packages() + 1);
1162         //int start = 0;
1163
1164         for(int i = 0; i < get_total_packages(); i++)
1165         {
1166                 HistogramPackage *package = (HistogramPackage*)get_package(i);
1167                 package->start = total_size * i / get_total_packages();
1168                 package->end = total_size * (i + 1) / get_total_packages();
1169         }
1170
1171 // Initialize clients here in case some don't get run.
1172         for(int i = 0; i < get_total_clients(); i++)
1173         {
1174                 HistogramUnit *unit = (HistogramUnit*)get_client(i);
1175                 for(int i = 0; i < HISTOGRAM_MODES; i++)
1176                         bzero(unit->accum[i], sizeof(int) * HISTOGRAM_SLOTS);
1177         }
1178
1179 }
1180
1181 LoadClient* HistogramEngine::new_client()
1182 {
1183         return new HistogramUnit(this, plugin);
1184 }
1185
1186 LoadPackage* HistogramEngine::new_package()
1187 {
1188         return new HistogramPackage;
1189 }
1190
1191 void HistogramEngine::process_packages(int operation, VFrame *data, int do_value)
1192 {
1193         this->data = data;
1194         this->operation = operation;
1195         this->do_value = do_value;
1196         LoadServer::process_packages();
1197 }
1198
1199