MagickCore  6.9.12-19
Convert, Edit, Or Compose Bitmap Images
quantum-private.h
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1 /*
2  Copyright 1999-2021 ImageMagick Studio LLC, a non-profit organization
3  dedicated to making software imaging solutions freely available.
4 
5  You may not use this file except in compliance with the License. You may
6  obtain a copy of the License at
7 
8  https://imagemagick.org/script/license.php
9 
10  Unless required by applicable law or agreed to in writing, software
11  distributed under the License is distributed on an "AS IS" BASIS,
12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  See the License for the specific language governing permissions and
14  limitations under the License.
15 
16  MagickCore quantum inline methods.
17 */
18 #ifndef MAGICKCORE_QUANTUM_PRIVATE_H
19 #define MAGICKCORE_QUANTUM_PRIVATE_H
20 
21 #include "magick/memory_.h"
22 #include "magick/cache.h"
23 #include "magick/image-private.h"
24 #include "magick/pixel-accessor.h"
25 
26 #if defined(__cplusplus) || defined(c_plusplus)
27 extern "C" {
28 #endif
29 
30 typedef struct _QuantumState
31 {
32  double
34 
35  unsigned int
37 
38  size_t
40 
41  const unsigned int
42  *mask;
43 } QuantumState;
44 
46 {
47  size_t
49  quantum;
50 
53 
54  double
56  maximum,
57  scale;
58 
59  size_t
60  pad;
61 
64  pack;
65 
68 
69  size_t
71 
73  **pixels;
74 
75  size_t
77 
80 
83 
86 
87  size_t
89 };
90 
91 extern MagickPrivate void
93 
94 static inline MagickSizeType GetQuantumRange(const size_t depth)
95 {
97  one;
98 
99  size_t
100  max_depth;
101 
102  if (depth == 0)
103  return(0);
104  one=1;
105  max_depth=8*sizeof(MagickSizeType);
106  return((MagickSizeType) ((one << (MagickMin(depth,max_depth)-1))+
107  ((one << (MagickMin(depth,max_depth)-1))-1)));
108 }
109 
110 static inline float HalfToSinglePrecision(const unsigned short half)
111 {
112 #define ExponentBias (127-15)
113 #define ExponentMask 0x7c00
114 #define ExponentShift 23
115 #define SignBitShift 31
116 #define SignificandShift 13
117 #define SignificandMask 0x00000400
118 
119  typedef union _SinglePrecision
120  {
121  unsigned int
122  fixed_point;
123 
124  float
125  single_precision;
126  } SinglePrecision;
127 
128  unsigned int
129  exponent,
130  significand,
131  sign_bit;
132 
133  SinglePrecision
134  map;
135 
136  unsigned int
137  value;
138 
139  /*
140  The IEEE 754 standard specifies half precision as having:
141 
142  Sign bit: 1 bit
143  Exponent width: 5 bits
144  Significand precision: 11 (10 explicitly stored)
145  */
146  sign_bit=(unsigned int) ((half >> 15) & 0x00000001);
147  exponent=(unsigned int) ((half >> 10) & 0x0000001f);
148  significand=(unsigned int) (half & 0x000003ff);
149  if (exponent == 0)
150  {
151  if (significand == 0)
152  value=sign_bit << SignBitShift;
153  else
154  {
155  while ((significand & SignificandMask) == 0)
156  {
157  significand<<=1;
158  exponent--;
159  }
160  exponent++;
161  significand&=(~SignificandMask);
162  exponent+=ExponentBias;
163  value=(sign_bit << SignBitShift) | (exponent << ExponentShift) |
164  (significand << SignificandShift);
165  }
166  }
167  else
168  if (exponent == SignBitShift)
169  {
170  value=(sign_bit << SignBitShift) | 0x7f800000;
171  if (significand != 0)
172  value|=(significand << SignificandShift);
173  }
174  else
175  {
176  exponent+=ExponentBias;
177  significand<<=SignificandShift;
178  value=(sign_bit << SignBitShift) | (exponent << ExponentShift) |
179  significand;
180  }
181  map.fixed_point=value;
182  return(map.single_precision);
183 }
184 
185 static inline unsigned char *PopCharPixel(const unsigned char pixel,
186  unsigned char *magick_restrict pixels)
187 {
188  *pixels++=pixel;
189  return(pixels);
190 }
191 
192 static inline unsigned char *PopLongPixel(const EndianType endian,
193  const unsigned int pixel,unsigned char *magick_restrict pixels)
194 {
195  unsigned int
196  quantum;
197 
198  quantum=(unsigned int) pixel;
199  if (endian == LSBEndian)
200  {
201  *pixels++=(unsigned char) (quantum);
202  *pixels++=(unsigned char) (quantum >> 8);
203  *pixels++=(unsigned char) (quantum >> 16);
204  *pixels++=(unsigned char) (quantum >> 24);
205  return(pixels);
206  }
207  *pixels++=(unsigned char) (quantum >> 24);
208  *pixels++=(unsigned char) (quantum >> 16);
209  *pixels++=(unsigned char) (quantum >> 8);
210  *pixels++=(unsigned char) (quantum);
211  return(pixels);
212 }
213 
214 static inline unsigned char *PopShortPixel(const EndianType endian,
215  const unsigned short pixel,unsigned char *magick_restrict pixels)
216 {
217  unsigned int
218  quantum;
219 
220  quantum=pixel;
221  if (endian == LSBEndian)
222  {
223  *pixels++=(unsigned char) (quantum);
224  *pixels++=(unsigned char) (quantum >> 8);
225  return(pixels);
226  }
227  *pixels++=(unsigned char) (quantum >> 8);
228  *pixels++=(unsigned char) (quantum);
229  return(pixels);
230 }
231 
232 static inline const unsigned char *PushCharPixel(
233  const unsigned char *magick_restrict pixels,
234  unsigned char *magick_restrict pixel)
235 {
236  *pixel=(*pixels++);
237  return(pixels);
238 }
239 
240 static inline const unsigned char *PushLongPixel(const EndianType endian,
241  const unsigned char *magick_restrict pixels,
242  unsigned int *magick_restrict pixel)
243 {
244  unsigned int
245  quantum;
246 
247  if (endian == LSBEndian)
248  {
249  quantum=((unsigned int) *pixels++);
250  quantum|=((unsigned int) *pixels++ << 8);
251  quantum|=((unsigned int) *pixels++ << 16);
252  quantum|=((unsigned int) *pixels++ << 24);
253  *pixel=quantum;
254  return(pixels);
255  }
256  quantum=((unsigned int) *pixels++ << 24);
257  quantum|=((unsigned int) *pixels++ << 16);
258  quantum|=((unsigned int) *pixels++ << 8);
259  quantum|=((unsigned int) *pixels++);
260  *pixel=quantum;
261  return(pixels);
262 }
263 
264 static inline const unsigned char *PushShortPixel(const EndianType endian,
265  const unsigned char *magick_restrict pixels,
266  unsigned short *magick_restrict pixel)
267 {
268  unsigned int
269  quantum;
270 
271  if (endian == LSBEndian)
272  {
273  quantum=(unsigned int) *pixels++;
274  quantum|=(unsigned int) (*pixels++ << 8);
275  *pixel=(unsigned short) (quantum & 0xffff);
276  return(pixels);
277  }
278  quantum=(unsigned int) (*pixels++ << 8);
279  quantum|=(unsigned int) *pixels++;
280  *pixel=(unsigned short) (quantum & 0xffff);
281  return(pixels);
282 }
283 
284 static inline const unsigned char *PushFloatPixel(const EndianType endian,
285  const unsigned char *magick_restrict pixels,
287 {
288  union
289  {
290  unsigned int
291  unsigned_value;
292 
294  float_value;
295  } quantum;
296 
297  if (endian == LSBEndian)
298  {
299  quantum.unsigned_value=((unsigned int) *pixels++);
300  quantum.unsigned_value|=((unsigned int) *pixels++ << 8);
301  quantum.unsigned_value|=((unsigned int) *pixels++ << 16);
302  quantum.unsigned_value|=((unsigned int) *pixels++ << 24);
303  *pixel=quantum.float_value;
304  return(pixels);
305  }
306  quantum.unsigned_value=((unsigned int) *pixels++ << 24);
307  quantum.unsigned_value|=((unsigned int) *pixels++ << 16);
308  quantum.unsigned_value|=((unsigned int) *pixels++ << 8);
309  quantum.unsigned_value|=((unsigned int) *pixels++);
310  *pixel=quantum.float_value;
311  return(pixels);
312 }
313 
314 static inline Quantum ScaleAnyToQuantum(const QuantumAny quantum,
315  const QuantumAny range)
316 {
317  if (quantum > range)
318  return(QuantumRange);
319 #if !defined(MAGICKCORE_HDRI_SUPPORT)
320  return((Quantum) ((double) QuantumRange*(quantum*
321  PerceptibleReciprocal((double) range))+0.5));
322 #else
323  return((Quantum) ((double) QuantumRange*(quantum*
324  PerceptibleReciprocal((double) range))));
325 #endif
326 }
327 
328 static inline QuantumAny ScaleQuantumToAny(const Quantum quantum,
329  const QuantumAny range)
330 {
331 #if !defined(MAGICKCORE_HDRI_SUPPORT)
332  return((QuantumAny) ((MagickRealType) range*quantum/QuantumRange));
333 #else
334  if ((IsNaN(quantum) != 0) || (quantum <= 0.0))
335  return((QuantumAny) 0UL);
336  if (((MagickRealType) range*quantum/QuantumRange) >= 18446744073709551615.0)
337  return((QuantumAny) MagickULLConstant(18446744073709551615));
338  return((QuantumAny) ((MagickRealType) range*quantum/QuantumRange+0.5));
339 #endif
340 }
341 
342 #if (MAGICKCORE_QUANTUM_DEPTH == 8)
343 static inline Quantum ScaleCharToQuantum(const unsigned char value)
344 {
345  return((Quantum) value);
346 }
347 
348 static inline Quantum ScaleLongToQuantum(const unsigned int value)
349 {
350 #if !defined(MAGICKCORE_HDRI_SUPPORT)
351  return((Quantum) ((value)/16843009UL));
352 #else
353  return((Quantum) (value/16843009.0));
354 #endif
355 }
356 
357 static inline Quantum ScaleMapToQuantum(const MagickRealType value)
358 {
359  if (value <= 0.0)
360  return((Quantum) 0);
361  if (value >= MaxMap)
362  return(QuantumRange);
363 #if !defined(MAGICKCORE_HDRI_SUPPORT)
364  return((Quantum) (value+0.5));
365 #else
366  return((Quantum) value);
367 #endif
368 }
369 
370 static inline unsigned int ScaleQuantumToLong(const Quantum quantum)
371 {
372 #if !defined(MAGICKCORE_HDRI_SUPPORT)
373  return((unsigned int) (16843009UL*quantum));
374 #else
375  if ((IsNaN(quantum) != 0) || (quantum <= 0.0))
376  return(0U);
377  if ((16843009.0*quantum) >= 4294967295.0)
378  return(4294967295UL);
379  return((unsigned int) (16843009.0*quantum+0.5));
380 #endif
381 }
382 
383 static inline unsigned int ScaleQuantumToMap(const Quantum quantum)
384 {
385  if (quantum >= (Quantum) MaxMap)
386  return((unsigned int) MaxMap);
387 #if !defined(MAGICKCORE_HDRI_SUPPORT)
388  return((unsigned int) quantum);
389 #else
390  if ((IsNaN(quantum) != 0) || (quantum <= 0.0))
391  return(0U);
392  return((unsigned int) (quantum+0.5));
393 #endif
394 }
395 
396 static inline unsigned short ScaleQuantumToShort(const Quantum quantum)
397 {
398 #if !defined(MAGICKCORE_HDRI_SUPPORT)
399  return((unsigned short) (257UL*quantum));
400 #else
401  if ((IsNaN(quantum) != 0) || (quantum <= 0.0))
402  return(0);
403  if ((257.0*quantum) >= 65535.0)
404  return(65535);
405  return((unsigned short) (257.0*quantum+0.5));
406 #endif
407 }
408 
409 static inline Quantum ScaleShortToQuantum(const unsigned short value)
410 {
411 #if !defined(MAGICKCORE_HDRI_SUPPORT)
412  return((Quantum) ((value+128U)/257U));
413 #else
414  return((Quantum) (value/257.0));
415 #endif
416 }
417 #elif (MAGICKCORE_QUANTUM_DEPTH == 16)
418 static inline Quantum ScaleCharToQuantum(const unsigned char value)
419 {
420 #if !defined(MAGICKCORE_HDRI_SUPPORT)
421  return((Quantum) (257U*value));
422 #else
423  return((Quantum) (257.0*value));
424 #endif
425 }
426 
427 static inline Quantum ScaleLongToQuantum(const unsigned int value)
428 {
429 #if !defined(MAGICKCORE_HDRI_SUPPORT)
430  return((Quantum) ((value)/MagickULLConstant(65537)));
431 #else
432  return((Quantum) (value/65537.0));
433 #endif
434 }
435 
436 static inline Quantum ScaleMapToQuantum(const MagickRealType value)
437 {
438  if (value <= 0.0)
439  return((Quantum) 0);
440  if (value >= MaxMap)
441  return(QuantumRange);
442 #if !defined(MAGICKCORE_HDRI_SUPPORT)
443  return((Quantum) (value+0.5));
444 #else
445  return((Quantum) value);
446 #endif
447 }
448 
449 static inline unsigned int ScaleQuantumToLong(const Quantum quantum)
450 {
451 #if !defined(MAGICKCORE_HDRI_SUPPORT)
452  return((unsigned int) (65537UL*quantum));
453 #else
454  if ((IsNaN(quantum) != 0) || (quantum <= 0.0))
455  return(0U);
456  if ((65537.0*quantum) >= 4294967295.0)
457  return(4294967295U);
458  return((unsigned int) (65537.0*quantum+0.5));
459 #endif
460 }
461 
462 static inline unsigned int ScaleQuantumToMap(const Quantum quantum)
463 {
464  if (quantum >= (Quantum) MaxMap)
465  return((unsigned int) MaxMap);
466 #if !defined(MAGICKCORE_HDRI_SUPPORT)
467  return((unsigned int) quantum);
468 #else
469  if ((IsNaN(quantum) != 0) || (quantum <= 0.0))
470  return(0U);
471  return((unsigned int) (quantum+0.5));
472 #endif
473 }
474 
475 static inline unsigned short ScaleQuantumToShort(const Quantum quantum)
476 {
477 #if !defined(MAGICKCORE_HDRI_SUPPORT)
478  return((unsigned short) quantum);
479 #else
480  if ((IsNaN(quantum) != 0) || (quantum <= 0.0))
481  return(0);
482  if (quantum >= 65535.0)
483  return(65535);
484  return((unsigned short) (quantum+0.5));
485 #endif
486 }
487 
488 static inline Quantum ScaleShortToQuantum(const unsigned short value)
489 {
490  return((Quantum) value);
491 }
492 #elif (MAGICKCORE_QUANTUM_DEPTH == 32)
493 static inline Quantum ScaleCharToQuantum(const unsigned char value)
494 {
495 #if !defined(MAGICKCORE_HDRI_SUPPORT)
496  return((Quantum) (16843009UL*value));
497 #else
498  return((Quantum) (16843009.0*value));
499 #endif
500 }
501 
502 static inline Quantum ScaleLongToQuantum(const unsigned int value)
503 {
504  return((Quantum) value);
505 }
506 
507 static inline Quantum ScaleMapToQuantum(const MagickRealType value)
508 {
509  if (value <= 0.0)
510  return((Quantum) 0);
511  if (value >= (Quantum) MaxMap)
512  return(QuantumRange);
513 #if !defined(MAGICKCORE_HDRI_SUPPORT)
514  return((Quantum) (65537.0*value+0.5));
515 #else
516  return((Quantum) (65537.0*value));
517 #endif
518 }
519 
520 static inline unsigned int ScaleQuantumToLong(const Quantum quantum)
521 {
522 #if !defined(MAGICKCORE_HDRI_SUPPORT)
523  return((unsigned int) quantum);
524 #else
525  if ((IsNaN(quantum) != 0) || (quantum <= 0.0))
526  return(0U);
527  if ((quantum) >= 4294967295.0)
528  return(4294967295);
529  return((unsigned int) (quantum+0.5));
530 #endif
531 }
532 
533 static inline unsigned int ScaleQuantumToMap(const Quantum quantum)
534 {
535  if ((quantum/65537) >= (Quantum) MaxMap)
536  return((unsigned int) MaxMap);
537 #if !defined(MAGICKCORE_HDRI_SUPPORT)
538  return((unsigned int) ((quantum+MagickULLConstant(32768))/
539  MagickULLConstant(65537)));
540 #else
541  if ((IsNaN(quantum) != 0) || (quantum <= 0.0))
542  return(0U);
543  return((unsigned int) (quantum/65537.0+0.5));
544 #endif
545 }
546 
547 static inline unsigned short ScaleQuantumToShort(const Quantum quantum)
548 {
549 #if !defined(MAGICKCORE_HDRI_SUPPORT)
550  return((unsigned short) ((quantum+MagickULLConstant(32768))/
551  MagickULLConstant(65537)));
552 #else
553  if ((IsNaN(quantum) != 0) || (quantum <= 0.0))
554  return(0);
555  if ((quantum/65537.0) >= 65535.0)
556  return(65535);
557  return((unsigned short) (quantum/65537.0+0.5));
558 #endif
559 }
560 
561 static inline Quantum ScaleShortToQuantum(const unsigned short value)
562 {
563 #if !defined(MAGICKCORE_HDRI_SUPPORT)
564  return((Quantum) (65537UL*value));
565 #else
566  return((Quantum) (65537.0*value));
567 #endif
568 }
569 #elif (MAGICKCORE_QUANTUM_DEPTH == 64)
570 static inline Quantum ScaleCharToQuantum(const unsigned char value)
571 {
572  return((Quantum) (72340172838076673.0*value));
573 }
574 
575 static inline Quantum ScaleLongToQuantum(const unsigned int value)
576 {
577  return((Quantum) (4294967297.0*value));
578 }
579 
580 static inline Quantum ScaleMapToQuantum(const MagickRealType value)
581 {
582  if (value <= 0.0)
583  return((Quantum) 0);
584  if (value >= MaxMap)
585  return(QuantumRange);
586  return((Quantum) (281479271743489.0*value));
587 }
588 
589 static inline unsigned int ScaleQuantumToLong(const Quantum quantum)
590 {
591  return((unsigned int) (quantum/4294967297.0+0.5));
592 }
593 
594 static inline unsigned int ScaleQuantumToMap(const Quantum quantum)
595 {
596  if ((IsNaN(quantum) != 0) || (quantum <= 0.0))
597  return(0U);
598  if ((quantum/281479271743489.0) >= MaxMap)
599  return((unsigned int) MaxMap);
600  return((unsigned int) (quantum/281479271743489.0+0.5));
601 }
602 
603 static inline unsigned short ScaleQuantumToShort(const Quantum quantum)
604 {
605  if ((IsNaN(quantum) != 0) || (quantum <= 0.0))
606  return(0);
607  if ((quantum/281479271743489.0) >= 65535.0)
608  return(65535);
609  return((unsigned short) (quantum/281479271743489.0+0.5));
610 }
611 
612 static inline Quantum ScaleShortToQuantum(const unsigned short value)
613 {
614  return((Quantum) (281479271743489.0*value));
615 }
616 #endif
617 
618 static inline unsigned short SinglePrecisionToHalf(const float value)
619 {
620  typedef union _SinglePrecision
621  {
622  unsigned int
623  fixed_point;
624 
625  float
626  single_precision;
627  } SinglePrecision;
628 
629  int
630  exponent;
631 
632  unsigned int
633  significand,
634  sign_bit;
635 
636  SinglePrecision
637  map;
638 
639  unsigned short
640  half;
641 
642  /*
643  The IEEE 754 standard specifies half precision as having:
644 
645  Sign bit: 1 bit
646  Exponent width: 5 bits
647  Significand precision: 11 (10 explicitly stored)
648  */
649  map.single_precision=value;
650  sign_bit=(map.fixed_point >> 16) & 0x00008000;
651  exponent=(int) ((map.fixed_point >> ExponentShift) & 0x000000ff)-ExponentBias;
652  significand=map.fixed_point & 0x007fffff;
653  if (exponent <= 0)
654  {
655  int
656  shift;
657 
658  if (exponent < -10)
659  return((unsigned short) sign_bit);
660  significand=significand | 0x00800000;
661  shift=(int) (14-exponent);
662  significand=(unsigned int) ((significand+((1 << (shift-1))-1)+
663  ((significand >> shift) & 0x01)) >> shift);
664  return((unsigned short) (sign_bit | significand));
665  }
666  else
667  if (exponent == (0xff-ExponentBias))
668  {
669  if (significand == 0)
670  return((unsigned short) (sign_bit | ExponentMask));
671  else
672  {
673  significand>>=SignificandShift;
674  half=(unsigned short) (sign_bit | significand |
675  (significand == 0) | ExponentMask);
676  return(half);
677  }
678  }
679  significand=significand+((significand >> SignificandShift) & 0x01)+0x00000fff;
680  if ((significand & 0x00800000) != 0)
681  {
682  significand=0;
683  exponent++;
684  }
685  if (exponent > 30)
686  {
687  float
688  alpha;
689 
690  int
691  i;
692 
693  /*
694  Float overflow.
695  */
696  alpha=1.0e10;
697  for (i=0; i < 10; i++)
698  alpha*=alpha;
699  return((unsigned short) (sign_bit | ExponentMask));
700  }
701  half=(unsigned short) (sign_bit | (exponent << 10) |
702  (significand >> SignificandShift));
703  return(half);
704 }
705 
706 #if defined(__cplusplus) || defined(c_plusplus)
707 }
708 #endif
709 
710 #endif
#define magick_restrict
Definition: MagickCore.h:41
MagickDoubleType MagickRealType
Definition: magick-type.h:125
QuantumFormatType
Definition: quantum.h:45
QuantumFormatType format
Definition: quantum-private.h:52
static MagickSizeType GetQuantumRange(const size_t depth)
Definition: quantum-private.h:94
MemoryInfo ** pixels
Definition: quantum-private.h:73
#define ExponentMask
QuantumAlphaType alpha_type
Definition: quantum-private.h:67
size_t signature
Definition: quantum-private.h:88
#define MagickULLConstant(c)
Definition: magick-type.h:39
Definition: quantum.h:34
MagickPrivate void ResetQuantumState(QuantumInfo *)
Definition: quantum.c:578
#define SignBitShift
#define SignificandMask
static const unsigned char * PushCharPixel(const unsigned char *magick_restrict pixels, unsigned char *magick_restrict pixel)
Definition: quantum-private.h:232
QuantumState state
Definition: quantum-private.h:82
size_t depth
Definition: quantum-private.h:48
float MagickFloatType
Definition: magick-type.h:43
static const unsigned char * PushLongPixel(const EndianType endian, const unsigned char *magick_restrict pixels, unsigned int *magick_restrict pixel)
Definition: quantum-private.h:240
double minimum
Definition: quantum-private.h:55
Definition: memory.c:163
EndianType
Definition: quantum.h:31
size_t quantum
Definition: quantum-private.h:48
EndianType endian
Definition: quantum-private.h:79
static const unsigned char * PushFloatPixel(const EndianType endian, const unsigned char *magick_restrict pixels, MagickFloatType *magick_restrict pixel)
Definition: quantum-private.h:284
MagickBooleanType pack
Definition: quantum-private.h:63
MagickBooleanType
Definition: magick-type.h:198
static double PerceptibleReciprocal(const double x)
Definition: pixel-accessor.h:124
static Quantum ScaleAnyToQuantum(const QuantumAny quantum, const QuantumAny range)
Definition: quantum-private.h:314
static unsigned char * PopLongPixel(const EndianType endian, const unsigned int pixel, unsigned char *magick_restrict pixels)
Definition: quantum-private.h:192
static const unsigned char * PushShortPixel(const EndianType endian, const unsigned char *magick_restrict pixels, unsigned short *magick_restrict pixel)
Definition: quantum-private.h:264
unsigned int pixel
Definition: quantum-private.h:36
size_t MagickSizeType
Definition: magick-type.h:136
SemaphoreInfo * semaphore
Definition: quantum-private.h:85
#define SignificandShift
#define ExponentShift
#define MaxMap
Definition: magick-type.h:78
Definition: quantum-private.h:45
size_t pad
Definition: quantum-private.h:60
#define IsNaN(a)
Definition: magick-type.h:221
static float HalfToSinglePrecision(const unsigned short half)
Definition: quantum-private.h:110
size_t number_threads
Definition: quantum-private.h:70
double scale
Definition: quantum-private.h:55
const unsigned int * mask
Definition: quantum-private.h:42
unsigned short Quantum
Definition: magick-type.h:85
#define ExponentBias
size_t bits
Definition: quantum-private.h:39
size_t extent
Definition: quantum-private.h:76
#define MagickMin(x, y)
Definition: image-private.h:37
double inverse_scale
Definition: quantum-private.h:33
static unsigned short SinglePrecisionToHalf(const float value)
Definition: quantum-private.h:618
#define MagickPrivate
Definition: method-attribute.h:81
struct _QuantumState QuantumState
static unsigned char * PopCharPixel(const unsigned char pixel, unsigned char *magick_restrict pixels)
Definition: quantum-private.h:185
static unsigned char * PopShortPixel(const EndianType endian, const unsigned short pixel, unsigned char *magick_restrict pixels)
Definition: quantum-private.h:214
double maximum
Definition: quantum-private.h:55
static QuantumAny ScaleQuantumToAny(const Quantum quantum, const QuantumAny range)
Definition: quantum-private.h:328
MagickBooleanType min_is_white
Definition: quantum-private.h:63
Definition: quantum-private.h:30
MagickSizeType QuantumAny
Definition: magick-type.h:157
QuantumAlphaType
Definition: quantum.h:38
Definition: semaphore.c:60
#define QuantumRange
Definition: magick-type.h:86