1 /* 2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 3 % % 4 % % 5 % % 6 % QQQ U U AAA N N TTTTT U U M M % 7 % Q Q U U A A NN N T U U MM MM % 8 % Q Q U U AAAAA N N N T U U M M M % 9 % Q QQ U U A A N NN T U U M M % 10 % QQQQ UUU A A N N T UUU M M % 11 % % 12 % MagicCore Methods to Acquire / Destroy Quantum Pixels % 13 % % 14 % Software Design % 15 % Cristy % 16 % October 1998 % 17 % % 18 % % 19 % Copyright 1999-2016 ImageMagick Studio LLC, a non-profit organization % 20 % dedicated to making software imaging solutions freely available. % 21 % % 22 % You may not use this file except in compliance with the License. You may % 23 % obtain a copy of the License at % 24 % % 25 % http://www.imagemagick.org/script/license.php % 26 % % 27 % Unless required by applicable law or agreed to in writing, software % 28 % distributed under the License is distributed on an "AS IS" BASIS, % 29 % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % 30 % See the License for the specific language governing permissions and % 31 % limitations under the License. % 32 % % 33 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 34 % 35 % 36 */ 37 38 /* 40 Include declarations. 41 */ 42 #include "MagickCore/studio.h" 43 #include "MagickCore/attribute.h" 44 #include "MagickCore/blob.h" 45 #include "MagickCore/blob-private.h" 46 #include "MagickCore/color-private.h" 47 #include "MagickCore/exception.h" 48 #include "MagickCore/exception-private.h" 49 #include "MagickCore/cache.h" 50 #include "MagickCore/cache-private.h" 51 #include "MagickCore/colorspace.h" 52 #include "MagickCore/colorspace-private.h" 53 #include "MagickCore/constitute.h" 54 #include "MagickCore/delegate.h" 55 #include "MagickCore/geometry.h" 56 #include "MagickCore/list.h" 57 #include "MagickCore/magick.h" 58 #include "MagickCore/memory_.h" 59 #include "MagickCore/monitor.h" 60 #include "MagickCore/option.h" 61 #include "MagickCore/pixel.h" 62 #include "MagickCore/pixel-accessor.h" 63 #include "MagickCore/property.h" 64 #include "MagickCore/quantum.h" 65 #include "MagickCore/quantum-private.h" 66 #include "MagickCore/resource_.h" 67 #include "MagickCore/semaphore.h" 68 #include "MagickCore/statistic.h" 69 #include "MagickCore/stream.h" 70 #include "MagickCore/string_.h" 71 #include "MagickCore/string-private.h" 72 #include "MagickCore/thread-private.h" 73 #include "MagickCore/utility.h" 74 75 /* 77 Define declarations. 78 */ 79 #define QuantumSignature 0xab 80 81 /* 83 Forward declarations. 84 */ 85 static void 86 DestroyQuantumPixels(QuantumInfo *); 87 88 /* 90 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 91 % % 92 % % 93 % % 94 % A c q u i r e Q u a n t u m I n f o % 95 % % 96 % % 97 % % 98 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 99 % 100 % AcquireQuantumInfo() allocates the QuantumInfo structure. 101 % 102 % The format of the AcquireQuantumInfo method is: 103 % 104 % QuantumInfo *AcquireQuantumInfo(const ImageInfo *image_info,Image *image) 105 % 106 % A description of each parameter follows: 107 % 108 % o image_info: the image info. 109 % 110 % o image: the image. 111 % 112 */ 113 MagickExport QuantumInfo *AcquireQuantumInfo(const ImageInfo *image_info, 114 Image *image) 115 { 116 MagickBooleanType 117 status; 118 119 QuantumInfo 120 *quantum_info; 121 122 quantum_info=(QuantumInfo *) AcquireMagickMemory(sizeof(*quantum_info)); 123 if (quantum_info == (QuantumInfo *) NULL) 124 ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed"); 125 quantum_info->signature=MagickCoreSignature; 126 GetQuantumInfo(image_info,quantum_info); 127 if (image == (const Image *) NULL) 128 return(quantum_info); 129 status=SetQuantumDepth(image,quantum_info,image->depth); 130 quantum_info->endian=image->endian; 131 if (status == MagickFalse) 132 quantum_info=DestroyQuantumInfo(quantum_info); 133 return(quantum_info); 134 } 135 136 /* 138 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 139 % % 140 % % 141 % % 142 + A c q u i r e Q u a n t u m P i x e l s % 143 % % 144 % % 145 % % 146 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 147 % 148 % AcquireQuantumPixels() allocates the pixel staging areas. 149 % 150 % The format of the AcquireQuantumPixels method is: 151 % 152 % MagickBooleanType AcquireQuantumPixels(QuantumInfo *quantum_info, 153 % const size_t extent) 154 % 155 % A description of each parameter follows: 156 % 157 % o quantum_info: the quantum info. 158 % 159 % o extent: the quantum info. 160 % 161 */ 162 static MagickBooleanType AcquireQuantumPixels(QuantumInfo *quantum_info, 163 const size_t extent) 164 { 165 register ssize_t 166 i; 167 168 assert(quantum_info != (QuantumInfo *) NULL); 169 assert(quantum_info->signature == MagickCoreSignature); 170 quantum_info->number_threads=(size_t) GetMagickResourceLimit(ThreadResource); 171 quantum_info->pixels=(unsigned char **) AcquireQuantumMemory( 172 quantum_info->number_threads,sizeof(*quantum_info->pixels)); 173 if (quantum_info->pixels == (unsigned char **) NULL) 174 return(MagickFalse); 175 quantum_info->extent=extent; 176 (void) ResetMagickMemory(quantum_info->pixels,0,quantum_info->number_threads* 177 sizeof(*quantum_info->pixels)); 178 for (i=0; i < (ssize_t) quantum_info->number_threads; i++) 179 { 180 quantum_info->pixels[i]=(unsigned char *) AcquireQuantumMemory(extent+1, 181 sizeof(**quantum_info->pixels)); 182 if (quantum_info->pixels[i] == (unsigned char *) NULL) 183 { 184 while (--i >= 0) 185 quantum_info->pixels[i]=(unsigned char *) RelinquishMagickMemory( 186 quantum_info->pixels[i]); 187 return(MagickFalse); 188 } 189 (void) ResetMagickMemory(quantum_info->pixels[i],0,(extent+1)* 190 sizeof(**quantum_info->pixels)); 191 quantum_info->pixels[i][extent]=QuantumSignature; 192 } 193 return(MagickTrue); 194 } 195 196 /* 198 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 199 % % 200 % % 201 % % 202 % D e s t r o y Q u a n t u m I n f o % 203 % % 204 % % 205 % % 206 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 207 % 208 % DestroyQuantumInfo() deallocates memory associated with the QuantumInfo 209 % structure. 210 % 211 % The format of the DestroyQuantumInfo method is: 212 % 213 % QuantumInfo *DestroyQuantumInfo(QuantumInfo *quantum_info) 214 % 215 % A description of each parameter follows: 216 % 217 % o quantum_info: the quantum info. 218 % 219 */ 220 MagickExport QuantumInfo *DestroyQuantumInfo(QuantumInfo *quantum_info) 221 { 222 assert(quantum_info != (QuantumInfo *) NULL); 223 assert(quantum_info->signature == MagickCoreSignature); 224 if (quantum_info->pixels != (unsigned char **) NULL) 225 DestroyQuantumPixels(quantum_info); 226 if (quantum_info->semaphore != (SemaphoreInfo *) NULL) 227 RelinquishSemaphoreInfo(&quantum_info->semaphore); 228 quantum_info->signature=(~MagickCoreSignature); 229 quantum_info=(QuantumInfo *) RelinquishMagickMemory(quantum_info); 230 return(quantum_info); 231 } 232 233 /* 235 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 236 % % 237 % % 238 % % 239 + D e s t r o y Q u a n t u m P i x e l s % 240 % % 241 % % 242 % % 243 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 244 % 245 % DestroyQuantumPixels() destroys the quantum pixels. 246 % 247 % The format of the DestroyQuantumPixels() method is: 248 % 249 % void DestroyQuantumPixels(QuantumInfo *quantum_info) 250 % 251 % A description of each parameter follows: 252 % 253 % o quantum_info: the quantum info. 254 % 255 */ 256 static void DestroyQuantumPixels(QuantumInfo *quantum_info) 257 { 258 register ssize_t 259 i; 260 261 ssize_t 262 extent; 263 264 assert(quantum_info != (QuantumInfo *) NULL); 265 assert(quantum_info->signature == MagickCoreSignature); 266 assert(quantum_info->pixels != (unsigned char **) NULL); 267 extent=(ssize_t) quantum_info->extent; 268 for (i=0; i < (ssize_t) quantum_info->number_threads; i++) 269 if (quantum_info->pixels[i] != (unsigned char *) NULL) 270 { 271 /* 272 Did we overrun our quantum buffer? 273 */ 274 assert(quantum_info->pixels[i][extent] == QuantumSignature); 275 quantum_info->pixels[i]=(unsigned char *) RelinquishMagickMemory( 276 quantum_info->pixels[i]); 277 } 278 quantum_info->pixels=(unsigned char **) RelinquishMagickMemory( 279 quantum_info->pixels); 280 } 281 282 /* 284 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 285 % % 286 % % 287 % % 288 % G e t Q u a n t u m E x t e n t % 289 % % 290 % % 291 % % 292 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 293 % 294 % GetQuantumExtent() returns the quantum pixel buffer extent. 295 % 296 % The format of the GetQuantumExtent method is: 297 % 298 % size_t GetQuantumExtent(Image *image,const QuantumInfo *quantum_info, 299 % const QuantumType quantum_type) 300 % 301 % A description of each parameter follows: 302 % 303 % o image: the image. 304 % 305 % o quantum_info: the quantum info. 306 % 307 % o quantum_type: Declare which pixel components to transfer (red, green, 308 % blue, opacity, RGB, or RGBA). 309 % 310 */ 311 MagickExport size_t GetQuantumExtent(const Image *image, 312 const QuantumInfo *quantum_info,const QuantumType quantum_type) 313 { 314 size_t 315 packet_size; 316 317 assert(quantum_info != (QuantumInfo *) NULL); 318 assert(quantum_info->signature == MagickCoreSignature); 319 packet_size=1; 320 switch (quantum_type) 321 { 322 case GrayAlphaQuantum: packet_size=2; break; 323 case IndexAlphaQuantum: packet_size=2; break; 324 case RGBQuantum: packet_size=3; break; 325 case BGRQuantum: packet_size=3; break; 326 case RGBAQuantum: packet_size=4; break; 327 case RGBOQuantum: packet_size=4; break; 328 case BGRAQuantum: packet_size=4; break; 329 case CMYKQuantum: packet_size=4; break; 330 case CMYKAQuantum: packet_size=5; break; 331 case CbYCrAQuantum: packet_size=4; break; 332 case CbYCrQuantum: packet_size=3; break; 333 case CbYCrYQuantum: packet_size=4; break; 334 default: break; 335 } 336 if (quantum_info->pack == MagickFalse) 337 return((size_t) (packet_size*image->columns*((quantum_info->depth+7)/8))); 338 return((size_t) ((packet_size*image->columns*quantum_info->depth+7)/8)); 339 } 340 341 /* 343 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 344 % % 345 % % 346 % % 347 % G e t Q u a n t u m E n d i a n % 348 % % 349 % % 350 % % 351 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 352 % 353 % GetQuantumEndian() returns the quantum endian of the image. 354 % 355 % The endian of the GetQuantumEndian method is: 356 % 357 % EndianType GetQuantumEndian(const QuantumInfo *quantum_info) 358 % 359 % A description of each parameter follows: 360 % 361 % o quantum_info: the quantum info. 362 % 363 */ 364 MagickExport EndianType GetQuantumEndian(const QuantumInfo *quantum_info) 365 { 366 assert(quantum_info != (QuantumInfo *) NULL); 367 assert(quantum_info->signature == MagickCoreSignature); 368 return(quantum_info->endian); 369 } 370 371 /* 373 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 374 % % 375 % % 376 % % 377 % G e t Q u a n t u m F o r m a t % 378 % % 379 % % 380 % % 381 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 382 % 383 % GetQuantumFormat() returns the quantum format of the image. 384 % 385 % The format of the GetQuantumFormat method is: 386 % 387 % QuantumFormatType GetQuantumFormat(const QuantumInfo *quantum_info) 388 % 389 % A description of each parameter follows: 390 % 391 % o quantum_info: the quantum info. 392 % 393 */ 394 MagickExport QuantumFormatType GetQuantumFormat(const QuantumInfo *quantum_info) 395 { 396 assert(quantum_info != (QuantumInfo *) NULL); 397 assert(quantum_info->signature == MagickCoreSignature); 398 return(quantum_info->format); 399 } 400 401 /* 403 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 404 % % 405 % % 406 % % 407 % G e t Q u a n t u m I n f o % 408 % % 409 % % 410 % % 411 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 412 % 413 % GetQuantumInfo() initializes the QuantumInfo structure to default values. 414 % 415 % The format of the GetQuantumInfo method is: 416 % 417 % GetQuantumInfo(const ImageInfo *image_info,QuantumInfo *quantum_info) 418 % 419 % A description of each parameter follows: 420 % 421 % o image_info: the image info. 422 % 423 % o quantum_info: the quantum info. 424 % 425 */ 426 MagickExport void GetQuantumInfo(const ImageInfo *image_info, 427 QuantumInfo *quantum_info) 428 { 429 const char 430 *option; 431 432 assert(quantum_info != (QuantumInfo *) NULL); 433 (void) ResetMagickMemory(quantum_info,0,sizeof(*quantum_info)); 434 quantum_info->quantum=8; 435 quantum_info->maximum=1.0; 436 quantum_info->scale=QuantumRange; 437 quantum_info->pack=MagickTrue; 438 quantum_info->semaphore=AcquireSemaphoreInfo(); 439 quantum_info->signature=MagickCoreSignature; 440 if (image_info == (const ImageInfo *) NULL) 441 return; 442 option=GetImageOption(image_info,"quantum:format"); 443 if (option != (char *) NULL) 444 quantum_info->format=(QuantumFormatType) ParseCommandOption( 445 MagickQuantumFormatOptions,MagickFalse,option); 446 option=GetImageOption(image_info,"quantum:minimum"); 447 if (option != (char *) NULL) 448 quantum_info->minimum=StringToDouble(option,(char **) NULL); 449 option=GetImageOption(image_info,"quantum:maximum"); 450 if (option != (char *) NULL) 451 quantum_info->maximum=StringToDouble(option,(char **) NULL); 452 if ((quantum_info->minimum == 0.0) && (quantum_info->maximum == 0.0)) 453 quantum_info->scale=0.0; 454 else 455 if (quantum_info->minimum == quantum_info->maximum) 456 { 457 quantum_info->scale=(double) QuantumRange/quantum_info->minimum; 458 quantum_info->minimum=0.0; 459 } 460 else 461 quantum_info->scale=(double) QuantumRange/(quantum_info->maximum- 462 quantum_info->minimum); 463 option=GetImageOption(image_info,"quantum:scale"); 464 if (option != (char *) NULL) 465 quantum_info->scale=StringToDouble(option,(char **) NULL); 466 option=GetImageOption(image_info,"quantum:polarity"); 467 if (option != (char *) NULL) 468 quantum_info->min_is_white=LocaleCompare(option,"min-is-white") == 0 ? 469 MagickTrue : MagickFalse; 470 quantum_info->endian=image_info->endian; 471 ResetQuantumState(quantum_info); 472 } 473 474 /* 476 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 477 % % 478 % % 479 % % 480 % G e t Q u a n t u m P i x e l s % 481 % % 482 % % 483 % % 484 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 485 % 486 % GetQuantumPixels() returns the quantum pixels. 487 % 488 % The format of the GetQuantumPixels method is: 489 % 490 % unsigned char *QuantumPixels GetQuantumPixels( 491 % const QuantumInfo *quantum_info) 492 % 493 % A description of each parameter follows: 494 % 495 % o image: the image. 496 % 497 */ 498 MagickExport unsigned char *GetQuantumPixels(const QuantumInfo *quantum_info) 499 { 500 const int 501 id = GetOpenMPThreadId(); 502 503 assert(quantum_info != (QuantumInfo *) NULL); 504 assert(quantum_info->signature == MagickCoreSignature); 505 return(quantum_info->pixels[id]); 506 } 507 508 /* 510 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 511 % % 512 % % 513 % % 514 % G e t Q u a n t u m T y p e % 515 % % 516 % % 517 % % 518 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 519 % 520 % GetQuantumType() returns the quantum type of the image. 521 % 522 % The format of the GetQuantumType method is: 523 % 524 % QuantumType GetQuantumType(Image *image,ExceptionInfo *exception) 525 % 526 % A description of each parameter follows: 527 % 528 % o image: the image. 529 % 530 % o exception: return any errors or warnings in this structure. 531 % 532 */ 533 MagickExport QuantumType GetQuantumType(Image *image,ExceptionInfo *exception) 534 { 535 QuantumType 536 quantum_type; 537 538 assert(image != (Image *) NULL); 539 assert(image->signature == MagickCoreSignature); 540 if (image->debug != MagickFalse) 541 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 542 (void) exception; 543 quantum_type=RGBQuantum; 544 if (image->alpha_trait != UndefinedPixelTrait) 545 quantum_type=RGBAQuantum; 546 if (image->colorspace == CMYKColorspace) 547 { 548 quantum_type=CMYKQuantum; 549 if (image->alpha_trait != UndefinedPixelTrait) 550 quantum_type=CMYKAQuantum; 551 } 552 if (IsGrayColorspace(image->colorspace) != MagickFalse) 553 { 554 quantum_type=GrayQuantum; 555 if (image->alpha_trait != UndefinedPixelTrait) 556 quantum_type=GrayAlphaQuantum; 557 } 558 if (image->storage_class == PseudoClass) 559 { 560 quantum_type=IndexQuantum; 561 if (image->alpha_trait != UndefinedPixelTrait) 562 quantum_type=IndexAlphaQuantum; 563 } 564 return(quantum_type); 565 } 566 567 /* 569 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 570 % % 571 % % 572 % % 573 + R e s e t Q u a n t u m S t a t e % 574 % % 575 % % 576 % % 577 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 578 % 579 % ResetQuantumState() resets the quantum state. 580 % 581 % The format of the ResetQuantumState method is: 582 % 583 % void ResetQuantumState(QuantumInfo *quantum_info) 584 % 585 % A description of each parameter follows: 586 % 587 % o quantum_info: the quantum info. 588 % 589 */ 590 MagickPrivate void ResetQuantumState(QuantumInfo *quantum_info) 591 { 592 static const unsigned int mask[32] = 593 { 594 0x00000000U, 0x00000001U, 0x00000003U, 0x00000007U, 0x0000000fU, 595 0x0000001fU, 0x0000003fU, 0x0000007fU, 0x000000ffU, 0x000001ffU, 596 0x000003ffU, 0x000007ffU, 0x00000fffU, 0x00001fffU, 0x00003fffU, 597 0x00007fffU, 0x0000ffffU, 0x0001ffffU, 0x0003ffffU, 0x0007ffffU, 598 0x000fffffU, 0x001fffffU, 0x003fffffU, 0x007fffffU, 0x00ffffffU, 599 0x01ffffffU, 0x03ffffffU, 0x07ffffffU, 0x0fffffffU, 0x1fffffffU, 600 0x3fffffffU, 0x7fffffffU 601 }; 602 603 assert(quantum_info != (QuantumInfo *) NULL); 604 assert(quantum_info->signature == MagickCoreSignature); 605 quantum_info->state.inverse_scale=1.0; 606 if (fabs(quantum_info->scale) >= MagickEpsilon) 607 quantum_info->state.inverse_scale/=quantum_info->scale; 608 quantum_info->state.pixel=0U; 609 quantum_info->state.bits=0U; 610 quantum_info->state.mask=mask; 611 } 612 613 /* 615 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 616 % % 617 % % 618 % % 619 % S e t Q u a n t u m F o r m a t % 620 % % 621 % % 622 % % 623 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 624 % 625 % SetQuantumAlphaType() sets the quantum format. 626 % 627 % The format of the SetQuantumAlphaType method is: 628 % 629 % void SetQuantumAlphaType(QuantumInfo *quantum_info, 630 % const QuantumAlphaType type) 631 % 632 % A description of each parameter follows: 633 % 634 % o quantum_info: the quantum info. 635 % 636 % o type: the alpha type (e.g. associate). 637 % 638 */ 639 MagickExport void SetQuantumAlphaType(QuantumInfo *quantum_info, 640 const QuantumAlphaType type) 641 { 642 assert(quantum_info != (QuantumInfo *) NULL); 643 assert(quantum_info->signature == MagickCoreSignature); 644 quantum_info->alpha_type=type; 645 } 646 647 /* 649 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 650 % % 651 % % 652 % % 653 % S e t Q u a n t u m D e p t h % 654 % % 655 % % 656 % % 657 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 658 % 659 % SetQuantumDepth() sets the quantum depth. 660 % 661 % The format of the SetQuantumDepth method is: 662 % 663 % MagickBooleanType SetQuantumDepth(const Image *image, 664 % QuantumInfo *quantum_info,const size_t depth) 665 % 666 % A description of each parameter follows: 667 % 668 % o image: the image. 669 % 670 % o quantum_info: the quantum info. 671 % 672 % o depth: the quantum depth. 673 % 674 */ 675 MagickExport MagickBooleanType SetQuantumDepth(const Image *image, 676 QuantumInfo *quantum_info,const size_t depth) 677 { 678 size_t 679 extent, 680 quantum; 681 682 /* 683 Allocate the quantum pixel buffer. 684 */ 685 assert(image != (Image *) NULL); 686 assert(image->signature == MagickCoreSignature); 687 if (image->debug != MagickFalse) 688 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 689 assert(quantum_info != (QuantumInfo *) NULL); 690 assert(quantum_info->signature == MagickCoreSignature); 691 quantum_info->depth=depth; 692 if (quantum_info->format == FloatingPointQuantumFormat) 693 { 694 if (quantum_info->depth > 32) 695 quantum_info->depth=64; 696 else 697 if (quantum_info->depth > 16) 698 quantum_info->depth=32; 699 else 700 quantum_info->depth=16; 701 } 702 if (quantum_info->pixels != (unsigned char **) NULL) 703 DestroyQuantumPixels(quantum_info); 704 quantum=(quantum_info->pad+6)*(quantum_info->depth+7)/8; 705 extent=MagickMax(image->columns,image->rows)*quantum; 706 if ((MagickMax(image->columns,image->rows) != 0) && 707 (quantum != (extent/MagickMax(image->columns,image->rows)))) 708 return(MagickFalse); 709 return(AcquireQuantumPixels(quantum_info,extent)); 710 } 711 712 /* 714 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 715 % % 716 % % 717 % % 718 % S e t Q u a n t u m E n d i a n % 719 % % 720 % % 721 % % 722 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 723 % 724 % SetQuantumEndian() sets the quantum endian. 725 % 726 % The endian of the SetQuantumEndian method is: 727 % 728 % MagickBooleanType SetQuantumEndian(const Image *image, 729 % QuantumInfo *quantum_info,const EndianType endian) 730 % 731 % A description of each parameter follows: 732 % 733 % o image: the image. 734 % 735 % o quantum_info: the quantum info. 736 % 737 % o endian: the quantum endian. 738 % 739 */ 740 MagickExport MagickBooleanType SetQuantumEndian(const Image *image, 741 QuantumInfo *quantum_info,const EndianType endian) 742 { 743 assert(image != (Image *) NULL); 744 assert(image->signature == MagickCoreSignature); 745 if (image->debug != MagickFalse) 746 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 747 assert(quantum_info != (QuantumInfo *) NULL); 748 assert(quantum_info->signature == MagickCoreSignature); 749 quantum_info->endian=endian; 750 return(SetQuantumDepth(image,quantum_info,quantum_info->depth)); 751 } 752 753 /* 755 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 756 % % 757 % % 758 % % 759 % S e t Q u a n t u m F o r m a t % 760 % % 761 % % 762 % % 763 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 764 % 765 % SetQuantumFormat() sets the quantum format. 766 % 767 % The format of the SetQuantumFormat method is: 768 % 769 % MagickBooleanType SetQuantumFormat(const Image *image, 770 % QuantumInfo *quantum_info,const QuantumFormatType format) 771 % 772 % A description of each parameter follows: 773 % 774 % o image: the image. 775 % 776 % o quantum_info: the quantum info. 777 % 778 % o format: the quantum format. 779 % 780 */ 781 MagickExport MagickBooleanType SetQuantumFormat(const Image *image, 782 QuantumInfo *quantum_info,const QuantumFormatType format) 783 { 784 assert(image != (Image *) NULL); 785 assert(image->signature == MagickCoreSignature); 786 if (image->debug != MagickFalse) 787 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 788 assert(quantum_info != (QuantumInfo *) NULL); 789 assert(quantum_info->signature == MagickCoreSignature); 790 quantum_info->format=format; 791 return(SetQuantumDepth(image,quantum_info,quantum_info->depth)); 792 } 793 794 /* 796 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 797 % % 798 % % 799 % % 800 % S e t Q u a n t u m I m a g e T y p e % 801 % % 802 % % 803 % % 804 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 805 % 806 % SetQuantumImageType() sets the image type based on the quantum type. 807 % 808 % The format of the SetQuantumImageType method is: 809 % 810 % void ImageType SetQuantumImageType(Image *image, 811 % const QuantumType quantum_type) 812 % 813 % A description of each parameter follows: 814 % 815 % o image: the image. 816 % 817 % o quantum_type: Declare which pixel components to transfer (red, green, 818 % blue, opacity, RGB, or RGBA). 819 % 820 */ 821 MagickExport void SetQuantumImageType(Image *image, 822 const QuantumType quantum_type) 823 { 824 assert(image != (Image *) NULL); 825 assert(image->signature == MagickCoreSignature); 826 if (image->debug != MagickFalse) 827 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 828 switch (quantum_type) 829 { 830 case IndexQuantum: 831 case IndexAlphaQuantum: 832 { 833 image->type=PaletteType; 834 break; 835 } 836 case GrayQuantum: 837 case GrayAlphaQuantum: 838 { 839 image->type=GrayscaleType; 840 if (image->depth == 1) 841 image->type=BilevelType; 842 break; 843 } 844 case CyanQuantum: 845 case MagentaQuantum: 846 case YellowQuantum: 847 case BlackQuantum: 848 case CMYKQuantum: 849 case CMYKAQuantum: 850 { 851 image->type=ColorSeparationType; 852 break; 853 } 854 default: 855 { 856 image->type=TrueColorType; 857 break; 858 } 859 } 860 } 861 862 /* 864 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 865 % % 866 % % 867 % % 868 % S e t Q u a n t u m P a c k % 869 % % 870 % % 871 % % 872 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 873 % 874 % SetQuantumPack() sets the quantum pack flag. 875 % 876 % The format of the SetQuantumPack method is: 877 % 878 % void SetQuantumPack(QuantumInfo *quantum_info, 879 % const MagickBooleanType pack) 880 % 881 % A description of each parameter follows: 882 % 883 % o quantum_info: the quantum info. 884 % 885 % o pack: the pack flag. 886 % 887 */ 888 MagickExport void SetQuantumPack(QuantumInfo *quantum_info, 889 const MagickBooleanType pack) 890 { 891 assert(quantum_info != (QuantumInfo *) NULL); 892 assert(quantum_info->signature == MagickCoreSignature); 893 quantum_info->pack=pack; 894 } 895 896 /* 898 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 899 % % 900 % % 901 % % 902 % S e t Q u a n t u m P a d % 903 % % 904 % % 905 % % 906 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 907 % 908 % SetQuantumPad() sets the quantum pad. 909 % 910 % The format of the SetQuantumPad method is: 911 % 912 % MagickBooleanType SetQuantumPad(const Image *image, 913 % QuantumInfo *quantum_info,const size_t pad) 914 % 915 % A description of each parameter follows: 916 % 917 % o image: the image. 918 % 919 % o quantum_info: the quantum info. 920 % 921 % o pad: the quantum pad. 922 % 923 */ 924 MagickExport MagickBooleanType SetQuantumPad(const Image *image, 925 QuantumInfo *quantum_info,const size_t pad) 926 { 927 assert(image != (Image *) NULL); 928 assert(image->signature == MagickCoreSignature); 929 if (image->debug != MagickFalse) 930 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 931 assert(quantum_info != (QuantumInfo *) NULL); 932 assert(quantum_info->signature == MagickCoreSignature); 933 quantum_info->pad=pad; 934 return(SetQuantumDepth(image,quantum_info,quantum_info->depth)); 935 } 936 937 /* 939 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 940 % % 941 % % 942 % % 943 % S e t Q u a n t u m M i n I s W h i t e % 944 % % 945 % % 946 % % 947 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 948 % 949 % SetQuantumMinIsWhite() sets the quantum min-is-white flag. 950 % 951 % The format of the SetQuantumMinIsWhite method is: 952 % 953 % void SetQuantumMinIsWhite(QuantumInfo *quantum_info, 954 % const MagickBooleanType min_is_white) 955 % 956 % A description of each parameter follows: 957 % 958 % o quantum_info: the quantum info. 959 % 960 % o min_is_white: the min-is-white flag. 961 % 962 */ 963 MagickExport void SetQuantumMinIsWhite(QuantumInfo *quantum_info, 964 const MagickBooleanType min_is_white) 965 { 966 assert(quantum_info != (QuantumInfo *) NULL); 967 assert(quantum_info->signature == MagickCoreSignature); 968 quantum_info->min_is_white=min_is_white; 969 } 970 971 /* 973 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 974 % % 975 % % 976 % % 977 % S e t Q u a n t u m Q u a n t u m % 978 % % 979 % % 980 % % 981 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 982 % 983 % SetQuantumQuantum() sets the quantum quantum. 984 % 985 % The format of the SetQuantumQuantum method is: 986 % 987 % void SetQuantumQuantum(QuantumInfo *quantum_info, 988 % const size_t quantum) 989 % 990 % A description of each parameter follows: 991 % 992 % o quantum_info: the quantum info. 993 % 994 % o quantum: the quantum quantum. 995 % 996 */ 997 MagickExport void SetQuantumQuantum(QuantumInfo *quantum_info, 998 const size_t quantum) 999 { 1000 assert(quantum_info != (QuantumInfo *) NULL); 1001 assert(quantum_info->signature == MagickCoreSignature); 1002 quantum_info->quantum=quantum; 1003 } 1004 1005 /* 1007 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 1008 % % 1009 % % 1010 % % 1011 % S e t Q u a n t u m S c a l e % 1012 % % 1013 % % 1014 % % 1015 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 1016 % 1017 % SetQuantumScale() sets the quantum scale. 1018 % 1019 % The format of the SetQuantumScale method is: 1020 % 1021 % void SetQuantumScale(QuantumInfo *quantum_info,const double scale) 1022 % 1023 % A description of each parameter follows: 1024 % 1025 % o quantum_info: the quantum info. 1026 % 1027 % o scale: the quantum scale. 1028 % 1029 */ 1030 MagickExport void SetQuantumScale(QuantumInfo *quantum_info,const double scale) 1031 { 1032 assert(quantum_info != (QuantumInfo *) NULL); 1033 assert(quantum_info->signature == MagickCoreSignature); 1034 quantum_info->scale=scale; 1035 } 1036
