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 _("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->get_data(), MESSAGESIZE);
 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->get_data(), strlen(keyframe->get_data()));
 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[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 629         int current_shader = 0;
 630         int aggregate_interpolation = 0;
 631         int aggregate_gamma = 0;
 632         int aggregate_colorbalance = 0;
 633 // All aggregation possibilities must be accounted for because unsupported
 634 // effects can get in between the aggregation members.
 635         if(!strcmp(get_output()->get_prev_effect(2), _("Interpolate Pixels")) &&
 636                 !strcmp(get_output()->get_prev_effect(1), _("Gamma")) &&
 637                 !strcmp(get_output()->get_prev_effect(0), _("Color Balance")))
 638         {
 639                 aggregate_interpolation = 1;
 640                 aggregate_gamma = 1;
 641                 aggregate_colorbalance = 1;
 642         }
 643         else
 644         if(!strcmp(get_output()->get_prev_effect(1), _("Gamma")) &&
 645                 !strcmp(get_output()->get_prev_effect(0), _("Color Balance")))
 646         {
 647                 aggregate_gamma = 1;
 648                 aggregate_colorbalance = 1;
 649         }
 650         else
 651         if(!strcmp(get_output()->get_prev_effect(1), _("Interpolate Pixels")) &&
 652                 !strcmp(get_output()->get_prev_effect(0), _("Gamma")))
 653         {
 654                 aggregate_interpolation = 1;
 655                 aggregate_gamma = 1;
 656         }
 657         else
 658         if(!strcmp(get_output()->get_prev_effect(1), _("Interpolate Pixels")) &&
 659                 !strcmp(get_output()->get_prev_effect(0), _("Color Balance")))
 660         {
 661                 aggregate_interpolation = 1;
 662                 aggregate_colorbalance = 1;
 663         }
 664         else
 665         if(!strcmp(get_output()->get_prev_effect(0), _("Interpolate Pixels")))
 666                 aggregate_interpolation = 1;
 667         else
 668         if(!strcmp(get_output()->get_prev_effect(0), _("Gamma")))
 669                 aggregate_gamma = 1;
 670         else
 671         if(!strcmp(get_output()->get_prev_effect(0), _("Color Balance")))
 672                 aggregate_colorbalance = 1;
 673
 674
 675 // The order of processing is fixed by this sequence
 676         if(aggregate_interpolation)
 677                 INTERPOLATE_COMPILE(shader_stack,
 678                         current_shader)
 679
 680         if(aggregate_gamma)
 681                 GAMMA_COMPILE(shader_stack,
 682                         current_shader,
 683                         aggregate_interpolation)
 684
 685         if(aggregate_colorbalance)
 686                 COLORBALANCE_COMPILE(shader_stack,
 687                         current_shader,
 688                         aggregate_interpolation || aggregate_gamma)
 689
 690
 691         if(aggregate_interpolation || aggregate_gamma || aggregate_colorbalance)
 692                 shader_stack[current_shader++] = histogram_get_pixel1;
 693         else
 694                 shader_stack[current_shader++] = histogram_get_pixel2;
 695
 696         unsigned int shader = 0;
 697         switch(get_output()->get_color_model())
 698         {
 699                 case BC_YUV888:
 700                 case BC_YUVA8888:
 701                         shader_stack[current_shader++] = head_frag;
 702                         shader_stack[current_shader++] = get_yuv_frag;
 703                         shader_stack[current_shader++] = apply_histogram_frag;
 704                         shader_stack[current_shader++] = put_yuv_frag;
 705                         break;
 706                 default:
 707                         shader_stack[current_shader++] = head_frag;
 708                         shader_stack[current_shader++] = get_rgb_frag;
 709                         shader_stack[current_shader++] = apply_histogram_frag;
 710                         shader_stack[current_shader++] = put_rgb_frag;
 711                         break;
 712         }
 713
 714         shader = VFrame::make_shader(0,
 715                 shader_stack[0],
 716                 shader_stack[1],
 717                 shader_stack[2],
 718                 shader_stack[3],
 719                 shader_stack[4],
 720                 shader_stack[5],
 721                 shader_stack[6],
 722                 shader_stack[7],
 723                 shader_stack[8],
 724                 shader_stack[9],
 725                 shader_stack[10],
 726                 shader_stack[11],
 727                 shader_stack[12],
 728                 shader_stack[13],
 729                 shader_stack[14],
 730                 shader_stack[15],
 731                 0);
 732
 733 // printf("HistogramMain::handle_opengl %d %d %d %d shader=%d\n",
 734 // aggregate_interpolation,
 735 // aggregate_gamma,
 736 // aggregate_colorbalance,
 737 // current_shader,
 738 // shader);
 739
 740         float low_input[4];
 741         float high_input[4];
 742         float gamma[4];
 743         float low_output[4];
 744         float output_scale[4];
 745
 746
 747 // printf("min x    min y    max x    max y\n");
 748 // printf("%f %f %f %f\n", input_min_r[0], input_min_r[1], input_max_r[0], input_max_r[1]);
 749 // printf("%f %f %f %f\n", input_min_g[0], input_min_g[1], input_max_g[0], input_max_g[1]);
 750 // printf("%f %f %f %f\n", input_min_b[0], input_min_b[1], input_max_b[0], input_max_b[1]);
 751 // printf("%f %f %f %f\n", input_min_v[0], input_min_v[1], input_max_v[0], input_max_v[1]);
 752
 753         for(int i = 0; i < HISTOGRAM_MODES; i++)
 754         {
 755                 low_input[i] = config.low_input[i];
 756                 high_input[i] = config.high_input[i];
 757                 gamma[i] = config.gamma[i];
 758                 low_output[i] = config.low_output[i];
 759                 output_scale[i] = config.high_output[i] - config.low_output[i];
 760         }
 761
 762         if(shader > 0)
 763         {
 764                 glUseProgram(shader);
 765                 glUniform1i(glGetUniformLocation(shader, "tex"), 0);
 766                 if(aggregate_gamma) GAMMA_UNIFORMS(shader)
 767                 if(aggregate_interpolation) INTERPOLATE_UNIFORMS(shader)
 768                 if(aggregate_colorbalance) COLORBALANCE_UNIFORMS(shader)
 769                 glUniform4fv(glGetUniformLocation(shader, "low_input"), 1, low_input);
 770                 glUniform4fv(glGetUniformLocation(shader, "high_input"), 1, high_input);
 771                 glUniform4fv(glGetUniformLocation(shader, "gamma"), 1, gamma);
 772                 glUniform4fv(glGetUniformLocation(shader, "low_output"), 1, low_output);
 773                 glUniform4fv(glGetUniformLocation(shader, "output_scale"), 1, output_scale);
 774         }
 775
 776         get_output()->init_screen();
 777         get_output()->bind_texture(0);
 778
 779         glDisable(GL_BLEND);
 780
 781 // Draw the affected half
 782         if(config.split)
 783         {
 784                 glBegin(GL_TRIANGLES);
 785                 glNormal3f(0, 0, 1.0);
 786
 787                 glTexCoord2f(0.0 / get_output()->get_texture_w(),
 788                         0.0 / get_output()->get_texture_h());
 789                 glVertex3f(0.0, -(float)get_output()->get_h(), 0);
 790
 791
 792                 glTexCoord2f((float)get_output()->get_w() / get_output()->get_texture_w(),
 793                         (float)get_output()->get_h() / get_output()->get_texture_h());
 794                 glVertex3f((float)get_output()->get_w(), -0.0, 0);
 795
 796                 glTexCoord2f(0.0 / get_output()->get_texture_w(),
 797                         (float)get_output()->get_h() / get_output()->get_texture_h());
 798                 glVertex3f(0.0, -0.0, 0);
 799
 800
 801                 glEnd();
 802         }
 803         else
 804         {
 805                 get_output()->draw_texture();
 806         }
 807
 808         glUseProgram(0);
 809
 810 // Draw the unaffected half
 811         if(config.split)
 812         {
 813                 glBegin(GL_TRIANGLES);
 814                 glNormal3f(0, 0, 1.0);
 815
 816
 817                 glTexCoord2f(0.0 / get_output()->get_texture_w(),
 818                         0.0 / get_output()->get_texture_h());
 819                 glVertex3f(0.0, -(float)get_output()->get_h(), 0);
 820
 821                 glTexCoord2f((float)get_output()->get_w() / get_output()->get_texture_w(),
 822                         0.0 / get_output()->get_texture_h());
 823                 glVertex3f((float)get_output()->get_w(),
 824                         -(float)get_output()->get_h(), 0);
 825
 826                 glTexCoord2f((float)get_output()->get_w() / get_output()->get_texture_w(),
 827                         (float)get_output()->get_h() / get_output()->get_texture_h());
 828                 glVertex3f((float)get_output()->get_w(), -0.0, 0);
 829
 830
 831                 glEnd();
 832         }
 833
 834         get_output()->set_opengl_state(VFrame::SCREEN);
 835 #endif
 836         return 0;
 837 }
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850 HistogramPackage::HistogramPackage()
 851  : LoadPackage()
 852 {
 853 }
 854
 855
 856
 857
 858 HistogramUnit::HistogramUnit(HistogramEngine *server,
 859         HistogramMain *plugin)
 860  : LoadClient(server)
 861 {
 862         this->plugin = plugin;
 863         this->server = server;
 864         for(int i = 0; i < HISTOGRAM_MODES; i++)
 865                 accum[i] = new int[HISTOGRAM_SLOTS];
 866 }
 867
 868 HistogramUnit::~HistogramUnit()
 869 {
 870         for(int i = 0; i < HISTOGRAM_MODES; i++)
 871                 delete [] accum[i];
 872 }
 873
 874 void HistogramUnit::process_package(LoadPackage *package)
 875 {
 876         HistogramPackage *pkg = (HistogramPackage*)package;
 877
 878         if(server->operation == HistogramEngine::HISTOGRAM)
 879         {
 880                 int do_value = server->do_value;
 881
 882
 883 #define HISTOGRAM_HEAD(type) \
 884 { \
 885         for(int i = pkg->start; i < pkg->end; i++) \
 886         { \
 887                 type *row = (type*)data->get_rows()[i]; \
 888                 for(int j = 0; j < w; j++) \
 889                 {
 890
 891 #define HISTOGRAM_TAIL(components) \
 892 /* Value takes the maximum of the output RGB values */ \
 893                         if(do_value) \
 894                         { \
 895                                 CLAMP(r, 0, HISTOGRAM_SLOTS - 1); \
 896                                 CLAMP(g, 0, HISTOGRAM_SLOTS - 1); \
 897                                 CLAMP(b, 0, HISTOGRAM_SLOTS - 1); \
 898                                 r_out = lookup_r[r]; \
 899                                 g_out = lookup_g[g]; \
 900                                 b_out = lookup_b[b]; \
 901 /*                              v = (r * 76 + g * 150 + b * 29) >> 8; */ \
 902                                 v = MAX(r_out, g_out); \
 903                                 v = MAX(v, b_out); \
 904                                 v += -HISTOGRAM_MIN * 0xffff / 100; \
 905                                 CLAMP(v, 0, HISTOGRAM_SLOTS - 1); \
 906                                 accum_v[v]++; \
 907                         } \
 908  \
 909                         r += -HISTOGRAM_MIN * 0xffff / 100; \
 910                         g += -HISTOGRAM_MIN * 0xffff / 100; \
 911                         b += -HISTOGRAM_MIN * 0xffff / 100; \
 912                         CLAMP(r, 0, HISTOGRAM_SLOTS - 1); \
 913                         CLAMP(g, 0, HISTOGRAM_SLOTS - 1); \
 914                         CLAMP(b, 0, HISTOGRAM_SLOTS - 1); \
 915                         accum_r[r]++; \
 916                         accum_g[g]++; \
 917                         accum_b[b]++; \
 918                         row += components; \
 919                 } \
 920         } \
 921 }
 922
 923
 924
 925
 926                 VFrame *data = server->data;
 927                 int w = data->get_w();
 928                 //int h = data->get_h();
 929                 int *accum_r = accum[HISTOGRAM_RED];
 930                 int *accum_g = accum[HISTOGRAM_GREEN];
 931                 int *accum_b = accum[HISTOGRAM_BLUE];
 932                 int *accum_v = accum[HISTOGRAM_VALUE];
 933                 int32_t r, g, b, y, u, v;
 934                 int r_out, g_out, b_out;
 935                 int *lookup_r = plugin->preview_lookup[HISTOGRAM_RED];
 936                 int *lookup_g = plugin->preview_lookup[HISTOGRAM_GREEN];
 937                 int *lookup_b = plugin->preview_lookup[HISTOGRAM_BLUE];
 938
 939                 switch(data->get_color_model())
 940                 {
 941                         case BC_RGB888:
 942                                 HISTOGRAM_HEAD(unsigned char)
 943                                 r = (row[0] << 8) | row[0];
 944                                 g = (row[1] << 8) | row[1];
 945                                 b = (row[2] << 8) | row[2];
 946                                 HISTOGRAM_TAIL(3)
 947                                 break;
 948                         case BC_RGB_FLOAT:
 949                                 HISTOGRAM_HEAD(float)
 950                                 r = (int)(row[0] * 0xffff);
 951                                 g = (int)(row[1] * 0xffff);
 952                                 b = (int)(row[2] * 0xffff);
 953                                 HISTOGRAM_TAIL(3)
 954                                 break;
 955                         case BC_YUV888:
 956                                 HISTOGRAM_HEAD(unsigned char)
 957                                 y = (row[0] << 8) | row[0];
 958                                 u = (row[1] << 8) | row[1];
 959                                 v = (row[2] << 8) | row[2];
 960                                 YUV::yuv.yuv_to_rgb_16(r, g, b, y, u, v);
 961                                 HISTOGRAM_TAIL(3)
 962                                 break;
 963                         case BC_RGBA8888:
 964                                 HISTOGRAM_HEAD(unsigned char)
 965                                 r = (row[0] << 8) | row[0];
 966                                 g = (row[1] << 8) | row[1];
 967                                 b = (row[2] << 8) | row[2];
 968                                 HISTOGRAM_TAIL(4)
 969                                 break;
 970                         case BC_RGBA_FLOAT:
 971                                 HISTOGRAM_HEAD(float)
 972                                 r = (int)(row[0] * 0xffff);
 973                                 g = (int)(row[1] * 0xffff);
 974                                 b = (int)(row[2] * 0xffff);
 975                                 HISTOGRAM_TAIL(4)
 976                                 break;
 977                         case BC_YUVA8888:
 978                                 HISTOGRAM_HEAD(unsigned char)
 979                                 y = (row[0] << 8) | row[0];
 980                                 u = (row[1] << 8) | row[1];
 981                                 v = (row[2] << 8) | row[2];
 982                                 YUV::yuv.yuv_to_rgb_16(r, g, b, y, u, v);
 983                                 HISTOGRAM_TAIL(4)
 984                                 break;
 985                         case BC_RGB161616:
 986                                 HISTOGRAM_HEAD(uint16_t)
 987                                 r = row[0];
 988                                 g = row[1];
 989                                 b = row[2];
 990                                 HISTOGRAM_TAIL(3)
 991                                 break;
 992                         case BC_YUV161616:
 993                                 HISTOGRAM_HEAD(uint16_t)
 994                                 y = row[0];
 995                                 u = row[1];
 996                                 v = row[2];
 997                                 YUV::yuv.yuv_to_rgb_16(r, g, b, y, u, v);
 998                                 HISTOGRAM_TAIL(3)
 999                                 break;
1000                         case BC_RGBA16161616:
1001                                 HISTOGRAM_HEAD(uint16_t)
1002                                 r = row[0];
1003                                 g = row[1];
1004                                 b = row[2];
1005                                 HISTOGRAM_TAIL(3)
1006                                 break;
1007                         case BC_YUVA16161616:
1008                                 HISTOGRAM_HEAD(uint16_t)
1009                                 y = row[0];
1010                                 u = row[1];
1011                                 v = row[2];
1012                                 YUV::yuv.yuv_to_rgb_16(r, g, b, y, u, v);
1013                                 HISTOGRAM_TAIL(4)
1014                                 break;
1015                 }
1016         }
1017         else
1018         if(server->operation == HistogramEngine::APPLY)
1019         {
1020
1021
1022
1023 #define PROCESS(type, components) \
1024 { \
1025         for(int i = pkg->start; i < pkg->end; i++) \
1026         { \
1027                 type *row = (type*)input->get_rows()[i]; \
1028                 for(int j = 0; j < w; j++) \
1029                 { \
1030                         if ( plugin->config.split && ((j + i * w / h) < w) ) \
1031                         continue; \
1032                         row[0] = lookup_r[row[0]]; \
1033                         row[1] = lookup_g[row[1]]; \
1034                         row[2] = lookup_b[row[2]]; \
1035                         row += components; \
1036                 } \
1037         } \
1038 }
1039
1040 #define PROCESS_YUV(type, components, max) \
1041 { \
1042         for(int i = pkg->start; i < pkg->end; i++) \
1043         { \
1044                 type *row = (type*)input->get_rows()[i]; \
1045                 for(int j = 0; j < w; j++) \
1046                 { \
1047                         if ( plugin->config.split && ((j + i * w / h) < w) ) \
1048                         continue; \
1049 /* Convert to 16 bit RGB */ \
1050                         if(max == 0xff) \
1051                         { \
1052                                 y = (row[0] << 8) | row[0]; \
1053                                 u = (row[1] << 8) | row[1]; \
1054                                 v = (row[2] << 8) | row[2]; \
1055                         } \
1056                         else \
1057                         { \
1058                                 y = row[0]; \
1059                                 u = row[1]; \
1060                                 v = row[2]; \
1061                         } \
1062  \
1063                         YUV::yuv.yuv_to_rgb_16(r, g, b, y, u, v); \
1064  \
1065 /* Look up in RGB domain */ \
1066                         r = lookup_r[r]; \
1067                         g = lookup_g[g]; \
1068                         b = lookup_b[b]; \
1069  \
1070 /* Convert to 16 bit YUV */ \
1071                         YUV::yuv.rgb_to_yuv_16(r, g, b, y, u, v); \
1072  \
1073                         if(max == 0xff) \
1074                         { \
1075                                 row[0] = y >> 8; \
1076                                 row[1] = u >> 8; \
1077                                 row[2] = v >> 8; \
1078                         } \
1079                         else \
1080                         { \
1081                                 row[0] = y; \
1082                                 row[1] = u; \
1083                                 row[2] = v; \
1084                         } \
1085                         row += components; \
1086                 } \
1087         } \
1088 }
1089
1090 #define PROCESS_FLOAT(components) \
1091 { \
1092         for(int i = pkg->start; i < pkg->end; i++) \
1093         { \
1094                 float *row = (float*)input->get_rows()[i]; \
1095                 for(int j = 0; j < w; j++) \
1096                 { \
1097                         if ( plugin->config.split && ((j + i * w / h) < w) ) \
1098                         continue; \
1099                         float r = row[0]; \
1100                         float g = row[1]; \
1101                         float b = row[2]; \
1102  \
1103                         r = plugin->calculate_level(r, HISTOGRAM_RED, 1); \
1104                         g = plugin->calculate_level(g, HISTOGRAM_GREEN, 1); \
1105                         b = plugin->calculate_level(b, HISTOGRAM_BLUE, 1); \
1106  \
1107                         row[0] = r; \
1108                         row[1] = g; \
1109                         row[2] = b; \
1110  \
1111                         row += components; \
1112                 } \
1113         } \
1114 }
1115
1116
1117                 VFrame *input = plugin->input;
1118                 //VFrame *output = plugin->output;
1119                 int w = input->get_w();
1120                 int h = input->get_h();
1121                 int *lookup_r = plugin->lookup[0];
1122                 int *lookup_g = plugin->lookup[1];
1123                 int *lookup_b = plugin->lookup[2];
1124                 int r, g, b, y, u, v;
1125                 switch(input->get_color_model())
1126                 {
1127                         case BC_RGB888:
1128                                 PROCESS(unsigned char, 3)
1129                                 break;
1130                         case BC_RGB_FLOAT:
1131                                 PROCESS_FLOAT(3);
1132                                 break;
1133                         case BC_RGBA8888:
1134                                 PROCESS(unsigned char, 4)
1135                                 break;
1136                         case BC_RGBA_FLOAT:
1137                                 PROCESS_FLOAT(4);
1138                                 break;
1139                         case BC_RGB161616:
1140                                 PROCESS(uint16_t, 3)
1141                                 break;
1142                         case BC_RGBA16161616:
1143                                 PROCESS(uint16_t, 4)
1144                                 break;
1145                         case BC_YUV888:
1146                                 PROCESS_YUV(unsigned char, 3, 0xff)
1147                                 break;
1148                         case BC_YUVA8888:
1149                                 PROCESS_YUV(unsigned char, 4, 0xff)
1150                                 break;
1151                         case BC_YUV161616:
1152                                 PROCESS_YUV(uint16_t, 3, 0xffff)
1153                                 break;
1154                         case BC_YUVA16161616:
1155                                 PROCESS_YUV(uint16_t, 4, 0xffff)
1156                                 break;
1157                 }
1158         }
1159 }
1160
1161
1162
1163
1164
1165
1166 HistogramEngine::HistogramEngine(HistogramMain *plugin,
1167         int total_clients,
1168         int total_packages)
1169  : LoadServer(total_clients, total_packages)
1170 {
1171         this->plugin = plugin;
1172 }
1173
1174 void HistogramEngine::init_packages()
1175 {
1176         switch(operation)
1177         {
1178                 case HISTOGRAM:
1179                         total_size = data->get_h();
1180                         break;
1181                 case APPLY:
1182                         total_size = data->get_h();
1183                         break;
1184         }
1185
1186
1187         //int package_size = (int)((float)total_size / get_total_packages() + 1);
1188         //int start = 0;
1189
1190         for(int i = 0; i < get_total_packages(); i++)
1191         {
1192                 HistogramPackage *package = (HistogramPackage*)get_package(i);
1193                 package->start = total_size * i / get_total_packages();
1194                 package->end = total_size * (i + 1) / get_total_packages();
1195         }
1196
1197 // Initialize clients here in case some don't get run.
1198         for(int i = 0; i < get_total_clients(); i++)
1199         {
1200                 HistogramUnit *unit = (HistogramUnit*)get_client(i);
1201                 for(int i = 0; i < HISTOGRAM_MODES; i++)
1202                         bzero(unit->accum[i], sizeof(int) * HISTOGRAM_SLOTS);
1203         }
1204
1205 }
1206
1207 LoadClient* HistogramEngine::new_client()
1208 {
1209         return new HistogramUnit(this, plugin);
1210 }
1211
1212 LoadPackage* HistogramEngine::new_package()
1213 {
1214         return new HistogramPackage;
1215 }
1216
1217 void HistogramEngine::process_packages(int operation, VFrame *data, int do_value)
1218 {
1219         this->data = data;
1220         this->operation = operation;
1221         this->do_value = do_value;
1222         LoadServer::process_packages();
1223 }
1224
1225