1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation. Oracle designates this
7 * particular file as subject to the "Classpath" exception as provided
8 * by Oracle in the LICENSE file that accompanied this code.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 */
24
25 // This file is available under and governed by the GNU General Public
26 // License version 2 only, as published by the Free Software Foundation.
27 // However, the following notice accompanied the original version of this
28 // file:
29 //
30 //---------------------------------------------------------------------------------
31 //
32 // Little Color Management System
33 // Copyright (c) 1998-2017 Marti Maria Saguer
34 //
35 // Permission is hereby granted, free of charge, to any person obtaining
36 // a copy of this software and associated documentation files (the "Software"),
37 // to deal in the Software without restriction, including without limitation
38 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
39 // and/or sell copies of the Software, and to permit persons to whom the Software
40 // is furnished to do so, subject to the following conditions:
41 //
42 // The above copyright notice and this permission notice shall be included in
43 // all copies or substantial portions of the Software.
44 //
45 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
46 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
47 // THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
48 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
49 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
50 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
51 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
52 //
53 //---------------------------------------------------------------------------------
54 //
55 // This is the plug-in header file. Normal LittleCMS clients should not use it.
56 // It is provided for plug-in writters that may want to access the support
57 // functions to do low level operations. All plug-in related structures
58 // are defined here. Including this file forces to include the standard API too.
59
60 #ifndef _lcms_plugin_H
61
62 // Deal with Microsoft's attempt at deprecating C standard runtime functions
63 #ifdef _MSC_VER
64 # if (_MSC_VER >= 1400)
65 # ifndef _CRT_SECURE_NO_DEPRECATE
66 # define _CRT_SECURE_NO_DEPRECATE
67 # endif
68 # ifndef _CRT_SECURE_NO_WARNINGS
69 # define _CRT_SECURE_NO_WARNINGS
70 # endif
71 # endif
72 #endif
73
74 #ifndef _lcms2_H
75 #include "lcms2.h"
76 #endif
77
78 // We need some standard C functions.
79 #include <stdlib.h>
80 #include <math.h>
81 #include <stdarg.h>
82 #include <memory.h>
83 #include <string.h>
84
85
86 #ifndef CMS_USE_CPP_API
87 # ifdef __cplusplus
88 extern "C" {
89 # endif
90 #endif
91
92 // Vector & Matrix operations -----------------------------------------------------------------------
93
94 // Axis of the matrix/array. No specific meaning at all.
95 #define VX 0
96 #define VY 1
97 #define VZ 2
98
99 // Vectors
100 typedef struct {
101 cmsFloat64Number n[3];
102
103 } cmsVEC3;
104
105 // 3x3 Matrix
106 typedef struct {
107 cmsVEC3 v[3];
108
109 } cmsMAT3;
110
111 CMSAPI void CMSEXPORT _cmsVEC3init(cmsVEC3* r, cmsFloat64Number x, cmsFloat64Number y, cmsFloat64Number z);
112 CMSAPI void CMSEXPORT _cmsVEC3minus(cmsVEC3* r, const cmsVEC3* a, const cmsVEC3* b);
113 CMSAPI void CMSEXPORT _cmsVEC3cross(cmsVEC3* r, const cmsVEC3* u, const cmsVEC3* v);
114 CMSAPI cmsFloat64Number CMSEXPORT _cmsVEC3dot(const cmsVEC3* u, const cmsVEC3* v);
115 CMSAPI cmsFloat64Number CMSEXPORT _cmsVEC3length(const cmsVEC3* a);
116 CMSAPI cmsFloat64Number CMSEXPORT _cmsVEC3distance(const cmsVEC3* a, const cmsVEC3* b);
117
118 CMSAPI void CMSEXPORT _cmsMAT3identity(cmsMAT3* a);
119 CMSAPI cmsBool CMSEXPORT _cmsMAT3isIdentity(const cmsMAT3* a);
120 CMSAPI void CMSEXPORT _cmsMAT3per(cmsMAT3* r, const cmsMAT3* a, const cmsMAT3* b);
121 CMSAPI cmsBool CMSEXPORT _cmsMAT3inverse(const cmsMAT3* a, cmsMAT3* b);
122 CMSAPI cmsBool CMSEXPORT _cmsMAT3solve(cmsVEC3* x, cmsMAT3* a, cmsVEC3* b);
123 CMSAPI void CMSEXPORT _cmsMAT3eval(cmsVEC3* r, const cmsMAT3* a, const cmsVEC3* v);
124
125
126 // Error logging -------------------------------------------------------------------------------------
127
128 CMSAPI void CMSEXPORT cmsSignalError(cmsContext ContextID, cmsUInt32Number ErrorCode, const char *ErrorText, ...);
129
130 // Memory management ----------------------------------------------------------------------------------
131
132 CMSAPI void* CMSEXPORT _cmsMalloc(cmsContext ContextID, cmsUInt32Number size);
133 CMSAPI void* CMSEXPORT _cmsMallocZero(cmsContext ContextID, cmsUInt32Number size);
134 CMSAPI void* CMSEXPORT _cmsCalloc(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size);
135 CMSAPI void* CMSEXPORT _cmsRealloc(cmsContext ContextID, void* Ptr, cmsUInt32Number NewSize);
136 CMSAPI void CMSEXPORT _cmsFree(cmsContext ContextID, void* Ptr);
137 CMSAPI void* CMSEXPORT _cmsDupMem(cmsContext ContextID, const void* Org, cmsUInt32Number size);
138
139 // I/O handler ----------------------------------------------------------------------------------
140
141 struct _cms_io_handler {
142
143 void* stream; // Associated stream, which is implemented differently depending on media.
144
145 cmsContext ContextID;
146 cmsUInt32Number UsedSpace;
147 cmsUInt32Number ReportedSize;
148 char PhysicalFile[cmsMAX_PATH];
149
150 cmsUInt32Number (* Read)(struct _cms_io_handler* iohandler, void *Buffer,
151 cmsUInt32Number size,
152 cmsUInt32Number count);
153 cmsBool (* Seek)(struct _cms_io_handler* iohandler, cmsUInt32Number offset);
154 cmsBool (* Close)(struct _cms_io_handler* iohandler);
155 cmsUInt32Number (* Tell)(struct _cms_io_handler* iohandler);
156 cmsBool (* Write)(struct _cms_io_handler* iohandler, cmsUInt32Number size,
157 const void* Buffer);
158 };
159
160 // Endianness adjust functions
161 CMSAPI cmsUInt16Number CMSEXPORT _cmsAdjustEndianess16(cmsUInt16Number Word);
162 CMSAPI cmsUInt32Number CMSEXPORT _cmsAdjustEndianess32(cmsUInt32Number Value);
163 CMSAPI void CMSEXPORT _cmsAdjustEndianess64(cmsUInt64Number* Result, cmsUInt64Number* QWord);
164
165 // Helper IO functions
166 CMSAPI cmsBool CMSEXPORT _cmsReadUInt8Number(cmsIOHANDLER* io, cmsUInt8Number* n);
167 CMSAPI cmsBool CMSEXPORT _cmsReadUInt16Number(cmsIOHANDLER* io, cmsUInt16Number* n);
168 CMSAPI cmsBool CMSEXPORT _cmsReadUInt32Number(cmsIOHANDLER* io, cmsUInt32Number* n);
169 CMSAPI cmsBool CMSEXPORT _cmsReadFloat32Number(cmsIOHANDLER* io, cmsFloat32Number* n);
170 CMSAPI cmsBool CMSEXPORT _cmsReadUInt64Number(cmsIOHANDLER* io, cmsUInt64Number* n);
171 CMSAPI cmsBool CMSEXPORT _cmsRead15Fixed16Number(cmsIOHANDLER* io, cmsFloat64Number* n);
172 CMSAPI cmsBool CMSEXPORT _cmsReadXYZNumber(cmsIOHANDLER* io, cmsCIEXYZ* XYZ);
173 CMSAPI cmsBool CMSEXPORT _cmsReadUInt16Array(cmsIOHANDLER* io, cmsUInt32Number n, cmsUInt16Number* Array);
174
175 CMSAPI cmsBool CMSEXPORT _cmsWriteUInt8Number(cmsIOHANDLER* io, cmsUInt8Number n);
176 CMSAPI cmsBool CMSEXPORT _cmsWriteUInt16Number(cmsIOHANDLER* io, cmsUInt16Number n);
177 CMSAPI cmsBool CMSEXPORT _cmsWriteUInt32Number(cmsIOHANDLER* io, cmsUInt32Number n);
178 CMSAPI cmsBool CMSEXPORT _cmsWriteFloat32Number(cmsIOHANDLER* io, cmsFloat32Number n);
179 CMSAPI cmsBool CMSEXPORT _cmsWriteUInt64Number(cmsIOHANDLER* io, cmsUInt64Number* n);
180 CMSAPI cmsBool CMSEXPORT _cmsWrite15Fixed16Number(cmsIOHANDLER* io, cmsFloat64Number n);
181 CMSAPI cmsBool CMSEXPORT _cmsWriteXYZNumber(cmsIOHANDLER* io, const cmsCIEXYZ* XYZ);
182 CMSAPI cmsBool CMSEXPORT _cmsWriteUInt16Array(cmsIOHANDLER* io, cmsUInt32Number n, const cmsUInt16Number* Array);
183
184 // ICC base tag
185 typedef struct {
186 cmsTagTypeSignature sig;
187 cmsInt8Number reserved[4];
188
189 } _cmsTagBase;
190
191 // Type base helper functions
192 CMSAPI cmsTagTypeSignature CMSEXPORT _cmsReadTypeBase(cmsIOHANDLER* io);
193 CMSAPI cmsBool CMSEXPORT _cmsWriteTypeBase(cmsIOHANDLER* io, cmsTagTypeSignature sig);
194
195 // Alignment functions
196 CMSAPI cmsBool CMSEXPORT _cmsReadAlignment(cmsIOHANDLER* io);
197 CMSAPI cmsBool CMSEXPORT _cmsWriteAlignment(cmsIOHANDLER* io);
198
199 // To deal with text streams. 2K at most
200 CMSAPI cmsBool CMSEXPORT _cmsIOPrintf(cmsIOHANDLER* io, const char* frm, ...);
201
202 // Fixed point helper functions
203 CMSAPI cmsFloat64Number CMSEXPORT _cms8Fixed8toDouble(cmsUInt16Number fixed8);
204 CMSAPI cmsUInt16Number CMSEXPORT _cmsDoubleTo8Fixed8(cmsFloat64Number val);
205
206 CMSAPI cmsFloat64Number CMSEXPORT _cms15Fixed16toDouble(cmsS15Fixed16Number fix32);
207 CMSAPI cmsS15Fixed16Number CMSEXPORT _cmsDoubleTo15Fixed16(cmsFloat64Number v);
208
209 // Date/time helper functions
210 CMSAPI void CMSEXPORT _cmsEncodeDateTimeNumber(cmsDateTimeNumber *Dest, const struct tm *Source);
211 CMSAPI void CMSEXPORT _cmsDecodeDateTimeNumber(const cmsDateTimeNumber *Source, struct tm *Dest);
212
213 //----------------------------------------------------------------------------------------------------------
214
215 // Shared callbacks for user data
216 typedef void (* _cmsFreeUserDataFn)(cmsContext ContextID, void* Data);
217 typedef void* (* _cmsDupUserDataFn)(cmsContext ContextID, const void* Data);
218
219 //----------------------------------------------------------------------------------------------------------
220
221 // Plug-in foundation
222 #define cmsPluginMagicNumber 0x61637070 // 'acpp'
223
224 #define cmsPluginMemHandlerSig 0x6D656D48 // 'memH'
225 #define cmsPluginInterpolationSig 0x696E7048 // 'inpH'
226 #define cmsPluginParametricCurveSig 0x70617248 // 'parH'
227 #define cmsPluginFormattersSig 0x66726D48 // 'frmH
228 #define cmsPluginTagTypeSig 0x74797048 // 'typH'
229 #define cmsPluginTagSig 0x74616748 // 'tagH'
230 #define cmsPluginRenderingIntentSig 0x696E7448 // 'intH'
231 #define cmsPluginMultiProcessElementSig 0x6D706548 // 'mpeH'
232 #define cmsPluginOptimizationSig 0x6F707448 // 'optH'
233 #define cmsPluginTransformSig 0x7A666D48 // 'xfmH'
234 #define cmsPluginMutexSig 0x6D747A48 // 'mtxH'
235
236 typedef struct _cmsPluginBaseStruct {
237
238 cmsUInt32Number Magic; // 'acpp' signature
239 cmsUInt32Number ExpectedVersion; // Expected version of LittleCMS
240 cmsUInt32Number Type; // Type of plug-in
241 struct _cmsPluginBaseStruct* Next; // For multiple plugin definition. NULL for end of list.
242
243 } cmsPluginBase;
244
245 // Maximum number of types in a plugin array
246 #define MAX_TYPES_IN_LCMS_PLUGIN 20
247
248 //----------------------------------------------------------------------------------------------------------
249
250 // Memory handler. Each new plug-in type replaces current behaviour
251
252 typedef void* (* _cmsMallocFnPtrType)(cmsContext ContextID, cmsUInt32Number size);
253 typedef void (* _cmsFreeFnPtrType)(cmsContext ContextID, void *Ptr);
254 typedef void* (* _cmsReallocFnPtrType)(cmsContext ContextID, void* Ptr, cmsUInt32Number NewSize);
255
256 typedef void* (* _cmsMalloZerocFnPtrType)(cmsContext ContextID, cmsUInt32Number size);
257 typedef void* (* _cmsCallocFnPtrType)(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size);
258 typedef void* (* _cmsDupFnPtrType)(cmsContext ContextID, const void* Org, cmsUInt32Number size);
259
260 typedef struct {
261
262 cmsPluginBase base;
263
264 // Required
265 _cmsMallocFnPtrType MallocPtr;
266 _cmsFreeFnPtrType FreePtr;
267 _cmsReallocFnPtrType ReallocPtr;
268
269 // Optional
270 _cmsMalloZerocFnPtrType MallocZeroPtr;
271 _cmsCallocFnPtrType CallocPtr;
272 _cmsDupFnPtrType DupPtr;
273
274 } cmsPluginMemHandler;
275
276
277 // ------------------------------------------------------------------------------------------------------------------
278
279 // Interpolation. 16 bits and floating point versions.
280 struct _cms_interp_struc;
281
282 // Interpolation callbacks
283
284 // 16 bits forward interpolation. This function performs precision-limited linear interpolation
285 // and is supposed to be quite fast. Implementation may be tetrahedral or trilinear, and plug-ins may
286 // choose to implement any other interpolation algorithm.
287 typedef void (* _cmsInterpFn16)(register const cmsUInt16Number Input[],
288 register cmsUInt16Number Output[],
289 register const struct _cms_interp_struc* p);
290
291 // Floating point forward interpolation. Full precision interpolation using floats. This is not a
292 // time critical function. Implementation may be tetrahedral or trilinear, and plug-ins may
293 // choose to implement any other interpolation algorithm.
294 typedef void (* _cmsInterpFnFloat)(cmsFloat32Number const Input[],
295 cmsFloat32Number Output[],
296 const struct _cms_interp_struc* p);
297
298
299
300 // This type holds a pointer to an interpolator that can be either 16 bits or float
301 typedef union {
302 _cmsInterpFn16 Lerp16; // Forward interpolation in 16 bits
303 _cmsInterpFnFloat LerpFloat; // Forward interpolation in floating point
304 } cmsInterpFunction;
305
306 // Flags for interpolator selection
307 #define CMS_LERP_FLAGS_16BITS 0x0000 // The default
308 #define CMS_LERP_FLAGS_FLOAT 0x0001 // Requires different implementation
309 #define CMS_LERP_FLAGS_TRILINEAR 0x0100 // Hint only
310
311
312 #define MAX_INPUT_DIMENSIONS 8
313
314 typedef struct _cms_interp_struc { // Used on all interpolations. Supplied by lcms2 when calling the interpolation function
315
316 cmsContext ContextID; // The calling thread
317
318 cmsUInt32Number dwFlags; // Keep original flags
319 cmsUInt32Number nInputs; // != 1 only in 3D interpolation
320 cmsUInt32Number nOutputs; // != 1 only in 3D interpolation
321
322 cmsUInt32Number nSamples[MAX_INPUT_DIMENSIONS]; // Valid on all kinds of tables
323 cmsUInt32Number Domain[MAX_INPUT_DIMENSIONS]; // Domain = nSamples - 1
324
325 cmsUInt32Number opta[MAX_INPUT_DIMENSIONS]; // Optimization for 3D CLUT. This is the number of nodes premultiplied for each
326 // dimension. For example, in 7 nodes, 7, 7^2 , 7^3, 7^4, etc. On non-regular
327 // Samplings may vary according of the number of nodes for each dimension.
328
329 const void *Table; // Points to the actual interpolation table
330 cmsInterpFunction Interpolation; // Points to the function to do the interpolation
331
332 } cmsInterpParams;
333
334 // Interpolators factory
335 typedef cmsInterpFunction (* cmsInterpFnFactory)(cmsUInt32Number nInputChannels, cmsUInt32Number nOutputChannels, cmsUInt32Number dwFlags);
336
337 // The plug-in
338 typedef struct {
339 cmsPluginBase base;
340
341 // Points to a user-supplied function which implements the factory
342 cmsInterpFnFactory InterpolatorsFactory;
343
344 } cmsPluginInterpolation;
345
346 //----------------------------------------------------------------------------------------------------------
347
348 // Parametric curves. A negative type means same function but analytically inverted. Max. number of params is 10
349
350 // Evaluator callback for user-supplied parametric curves. May implement more than one type
351 typedef cmsFloat64Number (* cmsParametricCurveEvaluator)(cmsInt32Number Type, const cmsFloat64Number Params[10], cmsFloat64Number R);
352
353 // Plug-in may implement an arbitrary number of parametric curves
354 typedef struct {
355 cmsPluginBase base;
356
357 cmsUInt32Number nFunctions; // Number of supported functions
358 cmsUInt32Number FunctionTypes[MAX_TYPES_IN_LCMS_PLUGIN]; // The identification types
359 cmsUInt32Number ParameterCount[MAX_TYPES_IN_LCMS_PLUGIN]; // Number of parameters for each function
360
361 cmsParametricCurveEvaluator Evaluator; // The evaluator
362
363 } cmsPluginParametricCurves;
364 //----------------------------------------------------------------------------------------------------------
365
366 // Formatters. This plug-in adds new handlers, replacing them if they already exist. Formatters dealing with
367 // cmsFloat32Number (bps = 4) or double (bps = 0) types are requested via FormatterFloat callback. Others come across
368 // Formatter16 callback
369
370 struct _cmstransform_struct;
371
372 typedef cmsUInt8Number* (* cmsFormatter16)(register struct _cmstransform_struct* CMMcargo,
373 register cmsUInt16Number Values[],
374 register cmsUInt8Number* Buffer,
375 register cmsUInt32Number Stride);
376
377 typedef cmsUInt8Number* (* cmsFormatterFloat)(struct _cmstransform_struct* CMMcargo,
378 cmsFloat32Number Values[],
379 cmsUInt8Number* Buffer,
380 cmsUInt32Number Stride);
381
382 // This type holds a pointer to a formatter that can be either 16 bits or cmsFloat32Number
383 typedef union {
384 cmsFormatter16 Fmt16;
385 cmsFormatterFloat FmtFloat;
386
387 } cmsFormatter;
388
389 #define CMS_PACK_FLAGS_16BITS 0x0000
390 #define CMS_PACK_FLAGS_FLOAT 0x0001
391
392 typedef enum { cmsFormatterInput=0, cmsFormatterOutput=1 } cmsFormatterDirection;
393
394 typedef cmsFormatter (* cmsFormatterFactory)(cmsUInt32Number Type, // Specific type, i.e. TYPE_RGB_8
395 cmsFormatterDirection Dir,
396 cmsUInt32Number dwFlags); // precision
397
398 // Plug-in may implement an arbitrary number of formatters
399 typedef struct {
400 cmsPluginBase base;
401 cmsFormatterFactory FormattersFactory;
402
403 } cmsPluginFormatters;
404
405 //----------------------------------------------------------------------------------------------------------
406
407 // Tag type handler. Each type is free to return anything it wants, and it is up to the caller to
408 // know in advance what is the type contained in the tag.
409 typedef struct _cms_typehandler_struct {
410
411 cmsTagTypeSignature Signature; // The signature of the type
412
413 // Allocates and reads items
414 void * (* ReadPtr)(struct _cms_typehandler_struct* self,
415 cmsIOHANDLER* io,
416 cmsUInt32Number* nItems,
417 cmsUInt32Number SizeOfTag);
418
419 // Writes n Items
420 cmsBool (* WritePtr)(struct _cms_typehandler_struct* self,
421 cmsIOHANDLER* io,
422 void* Ptr,
423 cmsUInt32Number nItems);
424
425 // Duplicate an item or array of items
426 void* (* DupPtr)(struct _cms_typehandler_struct* self,
427 const void *Ptr,
428 cmsUInt32Number n);
429
430 // Free all resources
431 void (* FreePtr)(struct _cms_typehandler_struct* self,
432 void *Ptr);
433
434 // Additional parameters used by the calling thread
435 cmsContext ContextID;
436 cmsUInt32Number ICCVersion;
437
438 } cmsTagTypeHandler;
439
440 // Each plug-in implements a single type
441 typedef struct {
442 cmsPluginBase base;
443 cmsTagTypeHandler Handler;
444
445 } cmsPluginTagType;
446
447 //----------------------------------------------------------------------------------------------------------
448
449 // This is the tag plugin, which identifies tags. For writing, a pointer to function is provided.
450 // This function should return the desired type for this tag, given the version of profile
451 // and the data being serialized.
452 typedef struct {
453
454 cmsUInt32Number ElemCount; // If this tag needs an array, how many elements should keep
455
456 // For reading.
457 cmsUInt32Number nSupportedTypes; // In how many types this tag can come (MAX_TYPES_IN_LCMS_PLUGIN maximum)
458 cmsTagTypeSignature SupportedTypes[MAX_TYPES_IN_LCMS_PLUGIN];
459
460 // For writing
461 cmsTagTypeSignature (* DecideType)(cmsFloat64Number ICCVersion, const void *Data);
462
463 } cmsTagDescriptor;
464
465 // Plug-in implements a single tag
466 typedef struct {
467 cmsPluginBase base;
468
469 cmsTagSignature Signature;
470 cmsTagDescriptor Descriptor;
471
472 } cmsPluginTag;
473
474 //----------------------------------------------------------------------------------------------------------
475
476 // Custom intents. This function should join all profiles specified in the array in
477 // a single LUT. Any custom intent in the chain redirects to custom function. If more than
478 // one custom intent is found, the one located first is invoked. Usually users should use only one
479 // custom intent, so mixing custom intents in same multiprofile transform is not supported.
480
481 typedef cmsPipeline* (* cmsIntentFn)( cmsContext ContextID,
482 cmsUInt32Number nProfiles,
483 cmsUInt32Number Intents[],
484 cmsHPROFILE hProfiles[],
485 cmsBool BPC[],
486 cmsFloat64Number AdaptationStates[],
487 cmsUInt32Number dwFlags);
488
489
490 // Each plug-in defines a single intent number.
491 typedef struct {
492 cmsPluginBase base;
493 cmsUInt32Number Intent;
494 cmsIntentFn Link;
495 char Description[256];
496
497 } cmsPluginRenderingIntent;
498
499
500 // The default ICC intents (perceptual, saturation, rel.col and abs.col)
501 CMSAPI cmsPipeline* CMSEXPORT _cmsDefaultICCintents(cmsContext ContextID,
502 cmsUInt32Number nProfiles,
503 cmsUInt32Number Intents[],
504 cmsHPROFILE hProfiles[],
505 cmsBool BPC[],
506 cmsFloat64Number AdaptationStates[],
507 cmsUInt32Number dwFlags);
508
509
510 //----------------------------------------------------------------------------------------------------------
511
512 // Pipelines, Multi Process Elements.
513
514 typedef void (* _cmsStageEvalFn) (const cmsFloat32Number In[], cmsFloat32Number Out[], const cmsStage* mpe);
515 typedef void*(* _cmsStageDupElemFn) (cmsStage* mpe);
516 typedef void (* _cmsStageFreeElemFn) (cmsStage* mpe);
517
518
519 // This function allocates a generic MPE
520 CMSAPI cmsStage* CMSEXPORT _cmsStageAllocPlaceholder(cmsContext ContextID,
521 cmsStageSignature Type,
522 cmsUInt32Number InputChannels,
523 cmsUInt32Number OutputChannels,
524 _cmsStageEvalFn EvalPtr, // Points to fn that evaluates the element (always in floating point)
525 _cmsStageDupElemFn DupElemPtr, // Points to a fn that duplicates the stage
526 _cmsStageFreeElemFn FreePtr, // Points to a fn that sets the element free
527 void* Data); // A generic pointer to whatever memory needed by the element
528 typedef struct {
529 cmsPluginBase base;
530 cmsTagTypeHandler Handler;
531
532 } cmsPluginMultiProcessElement;
533
534
535 // Data kept in "Element" member of cmsStage
536
537 // Curves
538 typedef struct {
539 cmsUInt32Number nCurves;
540 cmsToneCurve** TheCurves;
541
542 } _cmsStageToneCurvesData;
543
544 // Matrix
545 typedef struct {
546 cmsFloat64Number* Double; // floating point for the matrix
547 cmsFloat64Number* Offset; // The offset
548
549 } _cmsStageMatrixData;
550
551 // CLUT
552 typedef struct {
553
554 union { // Can have only one of both representations at same time
555 cmsUInt16Number* T; // Points to the table 16 bits table
556 cmsFloat32Number* TFloat; // Points to the cmsFloat32Number table
557
558 } Tab;
559
560 cmsInterpParams* Params;
561 cmsUInt32Number nEntries;
562 cmsBool HasFloatValues;
563
564 } _cmsStageCLutData;
565
566
567 //----------------------------------------------------------------------------------------------------------
568 // Optimization. Using this plug-in, additional optimization strategies may be implemented.
569 // The function should return TRUE if any optimization is done on the LUT, this terminates
570 // the optimization search. Or FALSE if it is unable to optimize and want to give a chance
571 // to the rest of optimizers.
572
573 typedef void (* _cmsOPTeval16Fn)(register const cmsUInt16Number In[],
574 register cmsUInt16Number Out[],
575 register const void* Data);
576
577
578 typedef cmsBool (* _cmsOPToptimizeFn)(cmsPipeline** Lut,
579 cmsUInt32Number Intent,
580 cmsUInt32Number* InputFormat,
581 cmsUInt32Number* OutputFormat,
582 cmsUInt32Number* dwFlags);
583
584 // This function may be used to set the optional evaluator and a block of private data. If private data is being used, an optional
585 // duplicator and free functions should also be specified in order to duplicate the LUT construct. Use NULL to inhibit such functionality.
586
587 CMSAPI void CMSEXPORT _cmsPipelineSetOptimizationParameters(cmsPipeline* Lut,
588 _cmsOPTeval16Fn Eval16,
589 void* PrivateData,
590 _cmsFreeUserDataFn FreePrivateDataFn,
591 _cmsDupUserDataFn DupPrivateDataFn);
592
593 typedef struct {
594 cmsPluginBase base;
595
596 // Optimize entry point
597 _cmsOPToptimizeFn OptimizePtr;
598
599 } cmsPluginOptimization;
600
601 //----------------------------------------------------------------------------------------------------------
602 // Full xform
603
604 typedef struct {
605 cmsUInt32Number BytesPerLineIn;
606 cmsUInt32Number BytesPerLineOut;
607 cmsUInt32Number BytesPerPlaneIn;
608 cmsUInt32Number BytesPerPlaneOut;
609
610 } cmsStride;
611
612 typedef void (* _cmsTransformFn)(struct _cmstransform_struct *CMMcargo, // Legacy function, handles just ONE scanline.
613 const void* InputBuffer,
614 void* OutputBuffer,
615 cmsUInt32Number Size,
616 cmsUInt32Number Stride); // Stride in bytes to the next plana in planar formats
617
618
619 typedef void (*_cmsTransform2Fn)(struct _cmstransform_struct *CMMcargo,
620 const void* InputBuffer,
621 void* OutputBuffer,
622 cmsUInt32Number PixelsPerLine,
623 cmsUInt32Number LineCount,
624 const cmsStride* Stride);
625
626 typedef cmsBool (* _cmsTransformFactory)(_cmsTransformFn* xform,
627 void** UserData,
628 _cmsFreeUserDataFn* FreePrivateDataFn,
629 cmsPipeline** Lut,
630 cmsUInt32Number* InputFormat,
631 cmsUInt32Number* OutputFormat,
632 cmsUInt32Number* dwFlags);
633
634 typedef cmsBool (* _cmsTransform2Factory)(_cmsTransform2Fn* xform,
635 void** UserData,
636 _cmsFreeUserDataFn* FreePrivateDataFn,
637 cmsPipeline** Lut,
638 cmsUInt32Number* InputFormat,
639 cmsUInt32Number* OutputFormat,
640 cmsUInt32Number* dwFlags);
641
642
643 // Retrieve user data as specified by the factory
644 CMSAPI void CMSEXPORT _cmsSetTransformUserData(struct _cmstransform_struct *CMMcargo, void* ptr, _cmsFreeUserDataFn FreePrivateDataFn);
645 CMSAPI void * CMSEXPORT _cmsGetTransformUserData(struct _cmstransform_struct *CMMcargo);
646
647
648 // Retrieve formatters
649 CMSAPI void CMSEXPORT _cmsGetTransformFormatters16 (struct _cmstransform_struct *CMMcargo, cmsFormatter16* FromInput, cmsFormatter16* ToOutput);
650 CMSAPI void CMSEXPORT _cmsGetTransformFormattersFloat(struct _cmstransform_struct *CMMcargo, cmsFormatterFloat* FromInput, cmsFormatterFloat* ToOutput);
651
652 typedef struct {
653 cmsPluginBase base;
654
655 // Transform entry point
656 union {
657 _cmsTransformFactory legacy_xform;
658 _cmsTransform2Factory xform;
659 } factories;
660
661 } cmsPluginTransform;
662
663 //----------------------------------------------------------------------------------------------------------
664 // Mutex
665
666 typedef void* (* _cmsCreateMutexFnPtrType)(cmsContext ContextID);
667 typedef void (* _cmsDestroyMutexFnPtrType)(cmsContext ContextID, void* mtx);
668 typedef cmsBool (* _cmsLockMutexFnPtrType)(cmsContext ContextID, void* mtx);
669 typedef void (* _cmsUnlockMutexFnPtrType)(cmsContext ContextID, void* mtx);
670
671 typedef struct {
672 cmsPluginBase base;
673
674 _cmsCreateMutexFnPtrType CreateMutexPtr;
675 _cmsDestroyMutexFnPtrType DestroyMutexPtr;
676 _cmsLockMutexFnPtrType LockMutexPtr;
677 _cmsUnlockMutexFnPtrType UnlockMutexPtr;
678
679 } cmsPluginMutex;
680
681 CMSAPI void* CMSEXPORT _cmsCreateMutex(cmsContext ContextID);
682 CMSAPI void CMSEXPORT _cmsDestroyMutex(cmsContext ContextID, void* mtx);
683 CMSAPI cmsBool CMSEXPORT _cmsLockMutex(cmsContext ContextID, void* mtx);
684 CMSAPI void CMSEXPORT _cmsUnlockMutex(cmsContext ContextID, void* mtx);
685
686
687 #ifndef CMS_USE_CPP_API
688 # ifdef __cplusplus
689 }
690 # endif
691 #endif
692
693 #define _lcms_plugin_H
694 #endif