cinelerra-5.1/plugins/brightness/brightness.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 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 "brightness.h"
  23 #include "bccolors.h"
  24 #include "bchash.h"
  25 #include "clip.h"
  26 #include "filexml.h"
  27 #include "language.h"
  28 #include "playback3d.h"
  29
  30 #include <stdio.h>
  31 #include <stdint.h>
  32 #include <string.h>
  33
  34
  35 REGISTER_PLUGIN(BrightnessMain)
  36
  37
  38 BrightnessConfig::BrightnessConfig()
  39 {
  40         reset(0);
  41 }
  42
  43 void BrightnessConfig::reset(int clear)
  44 {
  45         switch(clear) {
  46                 case RESET_CONTRAST : contrast = 0;
  47                         break;
  48                 case RESET_BRIGHTNESS : brightness = 0;
  49                         break;
  50                 case RESET_ALL :
  51                 default:
  52                         brightness = 0;
  53                         contrast = 0;
  54                         luma = 1;
  55                         break;
  56         }
  57 }
  58
  59 int BrightnessConfig::equivalent(BrightnessConfig &that)
  60 {
  61         return (brightness == that.brightness &&
  62                 contrast == that.contrast &&
  63                 luma == that.luma);
  64 }
  65
  66 void BrightnessConfig::copy_from(BrightnessConfig &that)
  67 {
  68         brightness = that.brightness;
  69         contrast = that.contrast;
  70         luma = that.luma;
  71 }
  72
  73 void BrightnessConfig::interpolate(BrightnessConfig &prev,
  74         BrightnessConfig &next,
  75         int64_t prev_frame,
  76         int64_t next_frame,
  77         int64_t current_frame)
  78 {
  79         double next_scale = (double)(current_frame - prev_frame) / (next_frame - prev_frame);
  80         double prev_scale = (double)(next_frame - current_frame) / (next_frame - prev_frame);
  81
  82         this->brightness = prev.brightness * prev_scale + next.brightness * next_scale;
  83         this->contrast = prev.contrast * prev_scale + next.contrast * next_scale;
  84         this->luma = (int)(prev.luma * prev_scale + next.luma * next_scale);
  85 }
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95 BrightnessMain::BrightnessMain(PluginServer *server)
  96  : PluginVClient(server)
  97 {
  98     redo_buffers = 1;
  99         engine = 0;
 100
 101 }
 102
 103 BrightnessMain::~BrightnessMain()
 104 {
 105
 106         if(engine) delete engine;
 107 }
 108
 109 const char* BrightnessMain::plugin_title() { return N_("Brightness/Contrast"); }
 110 int BrightnessMain::is_realtime() { return 1; }
 111
 112 NEW_WINDOW_MACRO(BrightnessMain, BrightnessWindow)
 113 LOAD_CONFIGURATION_MACRO(BrightnessMain, BrightnessConfig)
 114
 115 int BrightnessMain::process_buffer(VFrame *frame,
 116         int64_t start_position,
 117         double frame_rate)
 118 {
 119         load_configuration();
 120
 121         read_frame(frame,
 122                 0,
 123                 start_position,
 124                 frame_rate,
 125                 get_use_opengl());
 126
 127
 128 // Use hardware
 129         if(get_use_opengl())
 130         {
 131                 run_opengl();
 132                 return 0;
 133         }
 134
 135
 136
 137
 138         if(!engine) engine = new BrightnessEngine(this, PluginClient::smp + 1);
 139
 140         this->input = frame;
 141         this->output = frame;
 142
 143         if(!EQUIV(config.brightness, 0) || !EQUIV(config.contrast, 0))
 144         {
 145                 engine->process_packages();
 146         }
 147
 148         return 0;
 149 }
 150
 151 int BrightnessMain::handle_opengl()
 152 {
 153 #ifdef HAVE_GL
 154         static const char *brightness_yuvluma_frag =
 155                 "uniform sampler2D tex;\n"
 156                 "uniform float brightness;\n"
 157                 "uniform float contrast;\n"
 158                 "uniform float offset;\n"
 159                 "void main()\n"
 160                 "{\n"
 161                 "       vec4 yuva = texture2D(tex, gl_TexCoord[0].st);\n"
 162                 "       yuva.r += brightness;\n"
 163                 "       yuva.r = yuva.r * contrast + offset;\n"
 164                 "       gl_FragColor = yuva;\n"
 165                 "}\n";
 166
 167         static const char *brightness_yuv_frag =
 168                 "uniform sampler2D tex;\n"
 169                 "uniform float brightness;\n"
 170                 "uniform float contrast;\n"
 171                 "uniform float offset;\n"
 172                 "void main()\n"
 173                 "{\n"
 174                 "       vec4 yuva = texture2D(tex, gl_TexCoord[0].st);\n"
 175                 "       yuva.r += brightness;\n"
 176                 "       yuva.rgb *= vec3(contrast, contrast, contrast);\n"
 177                 "       yuva.rgb += vec3(offset, offset, offset);\n"
 178                 "       gl_FragColor = yuva;\n"
 179                 "}\n";
 180
 181         static const char *brightness_rgb_frag =
 182                 "uniform sampler2D tex;\n"
 183                 "uniform float brightness;\n"
 184                 "uniform float contrast;\n"
 185                 "uniform float offset;\n"
 186                 "void main()\n"
 187                 "{\n"
 188                 "       vec4 rgba = texture2D(tex, gl_TexCoord[0].st);\n"
 189                 "       rgba.rgb += vec3(brightness, brightness, brightness);\n"
 190                 "       rgba.rgb *= vec3(contrast, contrast, contrast);\n"
 191                 "       rgba.rgb += vec3(offset, offset, offset);\n"
 192                 "       gl_FragColor = rgba;\n"
 193                 "}\n";
 194
 195         static const char *brightness_rgbluma_frag =
 196                 "uniform sampler2D tex;\n"
 197                 "uniform float brightness;\n"
 198                 "uniform float contrast;\n"
 199                 "uniform float offset;\n"
 200                 "uniform mat3 yuv_to_rgb_matrix;\n"
 201                 "uniform mat3 rgb_to_yuv_matrix;\n"
 202
 203                 "void main()\n"
 204                 "{\n"
 205                 "       vec4 rgba = texture2D(tex, gl_TexCoord[0].st);\n"
 206                 "       rgba.rgb = rgb_to_yuv_matrix * rgba.rgb;\n"
 207                 "       rgba.r += brightness;\n"
 208                 "       rgba.r = rgba.r * contrast + offset;\n"
 209                 "       rgba.rgb = yuv_to_rgb_matrix * rgba.rgb;\n"
 210                 "       gl_FragColor = rgba;\n"
 211                 "}\n";
 212
 213         get_output()->to_texture();
 214         get_output()->enable_opengl();
 215         int need_matrix = 0;
 216         const char *brightness_frag = BC_CModels::is_yuv(get_output()->get_color_model()) ?
 217                 (config.luma ? (need_matrix = 0, brightness_yuvluma_frag) : brightness_yuv_frag) :
 218                 (config.luma ? (need_matrix = 1, brightness_rgbluma_frag) : brightness_rgb_frag) ;
 219
 220         unsigned int shader_id = VFrame::make_shader(0, brightness_frag, 0);
 221         if( shader_id > 0 ) {
 222                 glUseProgram(shader_id);
 223                 glUniform1i(glGetUniformLocation(shader_id, "tex"), 0);
 224                 glUniform1f(glGetUniformLocation(shader_id, "brightness"), config.brightness / 100);
 225                 float contrast = (config.contrast < 0) ?
 226                         (config.contrast + 100) / 100 :
 227                         (config.contrast + 25) / 25;
 228                 glUniform1f(glGetUniformLocation(shader_id, "contrast"), contrast);
 229                 float offset = 0.5 - contrast / 2;
 230                 glUniform1f(glGetUniformLocation(shader_id, "offset"), offset);
 231                 if( need_matrix ) {
 232                         BC_GL_MATRIX(shader_id, yuv_to_rgb_matrix);
 233                         BC_GL_MATRIX(shader_id, rgb_to_yuv_matrix);
 234                 }
 235         }
 236
 237         get_output()->init_screen();
 238         get_output()->bind_texture(0);
 239
 240
 241
 242         get_output()->draw_texture();
 243         glUseProgram(0);
 244         get_output()->set_opengl_state(VFrame::SCREEN);
 245 //printf("BrightnessMain::handle_opengl 100 %x\n", glGetError());
 246 #endif
 247         return 0;
 248 }
 249
 250
 251 void BrightnessMain::update_gui()
 252 {
 253         if(thread)
 254         {
 255                 if(load_configuration())
 256                 {
 257                         ((BrightnessWindow*)thread->window)->lock_window("BrightnessMain::update_gui");
 258                         ((BrightnessWindow*)thread->window)->brightness->update(config.brightness);
 259                         ((BrightnessWindow*)thread->window)->contrast->update(config.contrast);
 260                         ((BrightnessWindow*)thread->window)->luma->update(config.luma);
 261                         ((BrightnessWindow*)thread->window)->unlock_window();
 262                 }
 263         }
 264 }
 265
 266
 267 void BrightnessMain::save_data(KeyFrame *keyframe)
 268 {
 269         FileXML output;
 270
 271 // cause data to be stored directly in text
 272         output.set_shared_output(keyframe->xbuf);
 273         output.tag.set_title("BRIGHTNESS");
 274         output.tag.set_property("BRIGHTNESS", config.brightness);
 275         output.tag.set_property("CONTRAST",  config.contrast);
 276         output.tag.set_property("LUMA",  config.luma);
 277         output.append_tag();
 278         output.tag.set_title("/BRIGHTNESS");
 279         output.append_tag();
 280         output.append_newline();
 281         output.terminate_string();
 282 }
 283
 284 void BrightnessMain::read_data(KeyFrame *keyframe)
 285 {
 286         FileXML input;
 287
 288         input.set_shared_input(keyframe->xbuf);
 289
 290         int result = 0;
 291
 292         while(!result)
 293         {
 294                 result = input.read_tag();
 295
 296                 if(!result)
 297                 {
 298                         if(input.tag.title_is("BRIGHTNESS"))
 299                         {
 300                                 config.brightness = input.tag.get_property("BRIGHTNESS", config.brightness);
 301                                 config.contrast = input.tag.get_property("CONTRAST", config.contrast);
 302                                 config.luma = input.tag.get_property("LUMA", config.luma);
 303                         }
 304                 }
 305         }
 306 }
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320 BrightnessPackage::BrightnessPackage()
 321  : LoadPackage()
 322 {
 323 }
 324
 325
 326
 327
 328 BrightnessUnit::BrightnessUnit(BrightnessEngine *server, BrightnessMain *plugin)
 329  : LoadClient(server)
 330 {
 331         this->plugin = plugin;
 332 }
 333
 334 BrightnessUnit::~BrightnessUnit()
 335 {
 336 }
 337
 338 void BrightnessUnit::process_package(LoadPackage *package)
 339 {
 340         BrightnessPackage *pkg = (BrightnessPackage*)package;
 341
 342
 343         VFrame *output = plugin->output;
 344         VFrame *input = plugin->input;
 345
 346
 347
 348
 349
 350 #define DO_BRIGHTNESS(max, type, components, is_yuv) \
 351 { \
 352         type **input_rows = (type**)input->get_rows(); \
 353         type **output_rows = (type**)output->get_rows(); \
 354         int row1 = pkg->row1; \
 355         int row2 = pkg->row2; \
 356         int width = output->get_w(); \
 357         int r, g, b; \
 358  \
 359         if(!EQUIV(plugin->config.brightness, 0)) \
 360         { \
 361                 int offset = (int)(plugin->config.brightness / 100 * max); \
 362 /*printf("DO_BRIGHTNESS offset=%d\n", offset);*/ \
 363  \
 364                 for(int i = row1; i < row2; i++) \
 365                 { \
 366                         type *input_row = input_rows[i]; \
 367                         type *output_row = output_rows[i]; \
 368  \
 369                         for(int j = 0; j < width; j++) \
 370                         { \
 371                                 r = input_row[j * components] + offset; \
 372  \
 373                                 if(!is_yuv) \
 374                                 { \
 375                                         g = input_row[j * components + 1] + offset; \
 376                                         b = input_row[j * components + 2] + offset; \
 377                                 } \
 378  \
 379                                 CLAMP(r, 0, max); \
 380                                 if(!is_yuv) \
 381                                 { \
 382                                         CLAMP(g, 0, max); \
 383                                         CLAMP(b, 0, max); \
 384                                 } \
 385  \
 386                                 output_row[j * components] = r; \
 387  \
 388                                 if(!is_yuv) \
 389                                 { \
 390                                         output_row[j * components + 1] = g; \
 391                                         output_row[j * components + 2] = b; \
 392                                 } \
 393                                 else \
 394                                 { \
 395                                         output_row[j * components + 1] = input_row[j * components + 1]; \
 396                                         output_row[j * components + 2] = input_row[j * components + 2]; \
 397                                 } \
 398  \
 399                                 if(components == 4)  \
 400                                         output_row[j * components + 3] = input_row[j * components + 3]; \
 401                         } \
 402                 } \
 403  \
 404 /* Data to be processed is now in the output buffer */ \
 405                 input_rows = output_rows; \
 406         } \
 407  \
 408         if(!EQUIV(plugin->config.contrast, 0)) \
 409         { \
 410                 float contrast = (plugin->config.contrast < 0) ?  \
 411                         (plugin->config.contrast + 100) / 100 :  \
 412                         (plugin->config.contrast + 25) / 25; \
 413 /*printf("DO_BRIGHTNESS contrast=%f\n", contrast);*/ \
 414  \
 415                 int scalar = (int)(contrast * 0x100); \
 416                 int offset = (max << 8) / 2 - max * scalar / 2; \
 417                 int y, u, v; \
 418  \
 419                 for(int i = row1; i < row2; i++) \
 420                 { \
 421                         type *input_row = input_rows[i]; \
 422                         type *output_row = output_rows[i]; \
 423  \
 424                         if(plugin->config.luma) \
 425                         { \
 426                                 for(int j = 0; j < width; j++) \
 427                                 { \
 428                                         if(is_yuv) \
 429                                         { \
 430                                                 y = input_row[j * components]; \
 431                                         } \
 432                                         else \
 433                                         { \
 434                                                 r = input_row[j * components]; \
 435                                                 g = input_row[j * components + 1]; \
 436                                                 b = input_row[j * components + 2]; \
 437                                                 if(max == 0xff) \
 438                                                 { \
 439                                                         YUV::yuv.rgb_to_yuv_8( \
 440                                                                 r,  \
 441                                                                 g,  \
 442                                                                 b,  \
 443                                                                 y,  \
 444                                                                 u,  \
 445                                                                 v); \
 446                                                 } \
 447                                                 else \
 448                                                 { \
 449                                                         YUV::yuv.rgb_to_yuv_16( \
 450                                                                 r,  \
 451                                                                 g,  \
 452                                                                 b,  \
 453                                                                 y,  \
 454                                                                 u,  \
 455                                                                 v); \
 456                                                 } \
 457          \
 458                                         } \
 459          \
 460                                         y = (y * scalar + offset) >> 8; \
 461                                         CLAMP(y, 0, max); \
 462          \
 463          \
 464                                         if(is_yuv) \
 465                                         { \
 466                                                 output_row[j * components] = y; \
 467                                                 output_row[j * components + 1] = input_row[j * components + 1]; \
 468                                                 output_row[j * components + 2] = input_row[j * components + 2]; \
 469                                         } \
 470                                         else \
 471                                         { \
 472                                                 if(max == 0xff) \
 473                                                 { \
 474                                                         YUV::yuv.yuv_to_rgb_8( \
 475                                                                 r,  \
 476                                                                 g,  \
 477                                                                 b,  \
 478                                                                 y,  \
 479                                                                 u,  \
 480                                                                 v); \
 481                                                 } \
 482                                                 else \
 483                                                 { \
 484                                                         YUV::yuv.yuv_to_rgb_16( \
 485                                                                 r,  \
 486                                                                 g,  \
 487                                                                 b,  \
 488                                                                 y,  \
 489                                                                 u,  \
 490                                                                 v); \
 491                                                 } \
 492                                                 input_row[j * components] = r; \
 493                                                 input_row[j * components + 1] = g; \
 494                                                 input_row[j * components + 2] = b; \
 495                                         } \
 496          \
 497                                         if(components == 4)  \
 498                                                 output_row[j * components + 3] = input_row[j * components + 3]; \
 499                                 } \
 500                         } \
 501                         else \
 502                         { \
 503                                 for(int j = 0; j < width; j++) \
 504                                 { \
 505                                         r = input_row[j * components]; \
 506                                         g = input_row[j * components + 1]; \
 507                                         b = input_row[j * components + 2]; \
 508  \
 509                                         r = (r * scalar + offset) >> 8; \
 510                                         g = (g * scalar + offset) >> 8; \
 511                                         b = (b * scalar + offset) >> 8; \
 512  \
 513                                         CLAMP(r, 0, max); \
 514                                         CLAMP(g, 0, max); \
 515                                         CLAMP(b, 0, max); \
 516  \
 517                                         output_row[j * components] = r; \
 518                                         output_row[j * components + 1] = g; \
 519                                         output_row[j * components + 2] = b; \
 520  \
 521                                         if(components == 4)  \
 522                                                 output_row[j * components + 3] = input_row[j * components + 3]; \
 523                                 } \
 524                         } \
 525                 } \
 526         } \
 527 }
 528
 529
 530
 531 #define DO_BRIGHTNESS_F(components) \
 532 { \
 533         float **input_rows = (float**)input->get_rows(); \
 534         float **output_rows = (float**)output->get_rows(); \
 535         int row1 = pkg->row1; \
 536         int row2 = pkg->row2; \
 537         int width = output->get_w(); \
 538         float r, g, b; \
 539  \
 540         if(!EQUIV(plugin->config.brightness, 0)) \
 541         { \
 542                 float offset = plugin->config.brightness / 100; \
 543  \
 544                 for(int i = row1; i < row2; i++) \
 545                 { \
 546                         float *input_row = input_rows[i]; \
 547                         float *output_row = output_rows[i]; \
 548  \
 549                         for(int j = 0; j < width; j++) \
 550                         { \
 551                                 r = input_row[j * components] + offset; \
 552                                 g = input_row[j * components + 1] + offset; \
 553                                 b = input_row[j * components + 2] + offset; \
 554  \
 555                                 output_row[j * components] = r; \
 556                                 output_row[j * components + 1] = g; \
 557                                 output_row[j * components + 2] = b; \
 558                                 if(components == 4)  \
 559                                         output_row[j * components + 3] = input_row[j * components + 3]; \
 560                         } \
 561                 } \
 562  \
 563 /* Data to be processed is now in the output buffer */ \
 564                 input_rows = output_rows; \
 565         } \
 566  \
 567         if(!EQUIV(plugin->config.contrast, 0)) \
 568         { \
 569                 float contrast = (plugin->config.contrast < 0) ?  \
 570                         (plugin->config.contrast + 100) / 100 :  \
 571                         (plugin->config.contrast + 25) / 25; \
 572  \
 573 /* Shift black level down so shadows get darker instead of lighter */ \
 574                 float offset = 0.5 - contrast / 2; \
 575                 float y, u, v; \
 576  \
 577                 for(int i = row1; i < row2; i++) \
 578                 { \
 579                         float *input_row = input_rows[i]; \
 580                         float *output_row = output_rows[i]; \
 581  \
 582                         if(plugin->config.luma) \
 583                         { \
 584                                 for(int j = 0; j < width; j++) \
 585                                 { \
 586                                         r = input_row[j * components]; \
 587                                         g = input_row[j * components + 1]; \
 588                                         b = input_row[j * components + 2]; \
 589                                         YUV::yuv.rgb_to_yuv_f(r, g, b, y, u, v); \
 590                                         y = y * contrast + offset; \
 591                                         YUV::yuv.yuv_to_rgb_f(r, g, b, y, u, v); \
 592                                         input_row[j * components] = r; \
 593                                         input_row[j * components + 1] = g; \
 594                                         input_row[j * components + 2] = b; \
 595  \
 596                                         if(components == 4)  \
 597                                                 output_row[j * components + 3] = input_row[j * components + 3]; \
 598                                 } \
 599                         } \
 600                         else \
 601                         { \
 602                                 for(int j = 0; j < width; j++) \
 603                                 { \
 604                                         r = input_row[j * components]; \
 605                                         g = input_row[j * components + 1]; \
 606                                         b = input_row[j * components + 2]; \
 607  \
 608                                         r = r * contrast + offset; \
 609                                         g = g * contrast + offset; \
 610                                         b = b * contrast + offset; \
 611  \
 612                                         output_row[j * components] = r; \
 613                                         output_row[j * components + 1] = g; \
 614                                         output_row[j * components + 2] = b; \
 615  \
 616                                         if(components == 4)  \
 617                                                 output_row[j * components + 3] = input_row[j * components + 3]; \
 618                                 } \
 619                         } \
 620                 } \
 621         } \
 622 }
 623
 624
 625         switch(input->get_color_model())
 626         {
 627                 case BC_RGB888:
 628                         DO_BRIGHTNESS(0xff, unsigned char, 3, 0)
 629                         break;
 630
 631                 case BC_RGB_FLOAT:
 632                         DO_BRIGHTNESS_F(3)
 633                         break;
 634
 635                 case BC_YUV888:
 636                         DO_BRIGHTNESS(0xff, unsigned char, 3, 1)
 637                         break;
 638
 639                 case BC_RGBA8888:
 640                         DO_BRIGHTNESS(0xff, unsigned char, 4, 0)
 641                         break;
 642
 643                 case BC_RGBA_FLOAT:
 644                         DO_BRIGHTNESS_F(4)
 645                         break;
 646
 647                 case BC_YUVA8888:
 648                         DO_BRIGHTNESS(0xff, unsigned char, 4, 1)
 649                         break;
 650
 651                 case BC_RGB161616:
 652                         DO_BRIGHTNESS(0xffff, uint16_t, 3, 0)
 653                         break;
 654
 655                 case BC_YUV161616:
 656                         DO_BRIGHTNESS(0xffff, uint16_t, 3, 1)
 657                         break;
 658
 659                 case BC_RGBA16161616:
 660                         DO_BRIGHTNESS(0xffff, uint16_t, 4, 0)
 661                         break;
 662
 663                 case BC_YUVA16161616:
 664                         DO_BRIGHTNESS(0xffff, uint16_t, 4, 1)
 665                         break;
 666         }
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676 }
 677
 678
 679
 680
 681
 682
 683 BrightnessEngine::BrightnessEngine(BrightnessMain *plugin, int cpus)
 684  : LoadServer(cpus, cpus)
 685 {
 686         this->plugin = plugin;
 687 }
 688
 689 BrightnessEngine::~BrightnessEngine()
 690 {
 691 }
 692
 693
 694 void BrightnessEngine::init_packages()
 695 {
 696         for(int i = 0; i < LoadServer::get_total_packages(); i++)
 697         {
 698                 BrightnessPackage *package = (BrightnessPackage*)LoadServer::get_package(i);
 699                 package->row1 = plugin->input->get_h() * i / LoadServer::get_total_packages();
 700                 package->row2 = plugin->input->get_h() * (i + 1) / LoadServer::get_total_packages();
 701         }
 702 }
 703
 704 LoadClient* BrightnessEngine::new_client()
 705 {
 706         return new BrightnessUnit(this, plugin);
 707 }
 708
 709 LoadPackage* BrightnessEngine::new_package()
 710 {
 711         return new BrightnessPackage;
 712 }
 713
 714
 715
 716
 717