1/*
2 * Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26#include <stdio.h>
27#include <stdlib.h>
28#include <memory.h>
29#include "sun_java2d_cmm_lcms_LCMS.h"
30#include "jni_util.h"
31#include "Trace.h"
32#include "Disposer.h"
33#include <lcms2.h>
34#include "jlong.h"
35
36
37#define ALIGNLONG(x) (((x)+3) & ~(3)) // Aligns to DWORD boundary
38
39#ifdef USE_BIG_ENDIAN
40#define AdjustEndianess32(a)
41#else
42
43static
44void AdjustEndianess32(cmsUInt8Number *pByte)
45{
46 cmsUInt8Number temp1;
47 cmsUInt8Number temp2;
48
49 temp1 = *pByte++;
50 temp2 = *pByte++;
51 *(pByte-1) = *pByte;
52 *pByte++ = temp2;
53 *(pByte-3) = *pByte;
54 *pByte = temp1;
55}
56
57#endif
58
59// Transports to properly encoded values - note that icc profiles does use
60// big endian notation.
61
62static
63cmsInt32Number TransportValue32(cmsInt32Number Value)
64{
65 cmsInt32Number Temp = Value;
66
67 AdjustEndianess32((cmsUInt8Number*) &Temp);
68 return Temp;
69}
70
71#define SigMake(a,b,c,d) \
72 ( ( ((int) ((unsigned char) (a))) << 24) | \
73 ( ((int) ((unsigned char) (b))) << 16) | \
74 ( ((int) ((unsigned char) (c))) << 8) | \
75 (int) ((unsigned char) (d)))
76
77#define TagIdConst(a, b, c, d) \
78 ((int) SigMake ((a), (b), (c), (d)))
79
80#define SigHead TagIdConst('h','e','a','d')
81
82#define DT_BYTE 0
83#define DT_SHORT 1
84#define DT_INT 2
85#define DT_DOUBLE 3
86
87/* Default temp profile list size */
88#define DF_ICC_BUF_SIZE 32
89
90#define ERR_MSG_SIZE 256
91
92#ifdef _MSC_VER
93# ifndef snprintf
94# define snprintf _snprintf
95# endif
96#endif
97
98typedef struct lcmsProfile_s {
99 cmsHPROFILE pf;
100} lcmsProfile_t, *lcmsProfile_p;
101
102typedef union {
103 cmsTagSignature cms;
104 jint j;
105} TagSignature_t, *TagSignature_p;
106
107static jfieldID Trans_renderType_fID;
108static jfieldID Trans_ID_fID;
109static jfieldID IL_isIntPacked_fID;
110static jfieldID IL_dataType_fID;
111static jfieldID IL_pixelType_fID;
112static jfieldID IL_dataArray_fID;
113static jfieldID IL_offset_fID;
114static jfieldID IL_nextRowOffset_fID;
115static jfieldID IL_width_fID;
116static jfieldID IL_height_fID;
117static jfieldID IL_imageAtOnce_fID;
118
119JavaVM *javaVM;
120
121void errorHandler(cmsContext ContextID, cmsUInt32Number errorCode,
122 const char *errorText) {
123 JNIEnv *env;
124 char errMsg[ERR_MSG_SIZE];
125
126 int count = snprintf(errMsg, ERR_MSG_SIZE,
127 "LCMS error %d: %s", errorCode, errorText);
128 if (count < 0 || count >= ERR_MSG_SIZE) {
129 count = ERR_MSG_SIZE - 1;
130 }
131 errMsg[count] = 0;
132
133 (*javaVM)->AttachCurrentThread(javaVM, (void**)&env, NULL);
134 JNU_ThrowByName(env, "java/awt/color/CMMException", errMsg);
135}
136
137JNIEXPORT jint JNICALL DEF_JNI_OnLoad(JavaVM *jvm, void *reserved) {
138 javaVM = jvm;
139
140 cmsSetLogErrorHandler(errorHandler);
141 return JNI_VERSION_1_6;
142}
143
144void LCMS_freeProfile(JNIEnv *env, jlong ptr) {
145 lcmsProfile_p p = (lcmsProfile_p)jlong_to_ptr(ptr);
146
147 if (p != NULL) {
148 if (p->pf != NULL) {
149 cmsCloseProfile(p->pf);
150 }
151 free(p);
152 }
153}
154
155void LCMS_freeTransform(JNIEnv *env, jlong ID)
156{
157 cmsHTRANSFORM sTrans = jlong_to_ptr(ID);
158 /* Passed ID is always valid native ref so there is no check for zero */
159 cmsDeleteTransform(sTrans);
160}
161
162/*
163 * Class: sun_java2d_cmm_lcms_LCMS
164 * Method: createNativeTransform
165 * Signature: ([JI)J
166 */
167JNIEXPORT jlong JNICALL Java_sun_java2d_cmm_lcms_LCMS_createNativeTransform
168 (JNIEnv *env, jclass cls, jlongArray profileIDs, jint renderType,
169 jint inFormatter, jboolean isInIntPacked,
170 jint outFormatter, jboolean isOutIntPacked, jobject disposerRef)
171{
172 cmsHPROFILE _iccArray[DF_ICC_BUF_SIZE];
173 cmsHPROFILE *iccArray = &_iccArray[0];
174 cmsHTRANSFORM sTrans = NULL;
175 int i, j, size;
176 jlong* ids;
177
178 size = (*env)->GetArrayLength (env, profileIDs);
179 ids = (*env)->GetLongArrayElements(env, profileIDs, 0);
180 if (ids == NULL) {
181 // An exception should have already been thrown.
182 return 0L;
183 }
184
185#ifdef _LITTLE_ENDIAN
186 /* Reversing data packed into int for LE archs */
187 if (isInIntPacked) {
188 inFormatter ^= DOSWAP_SH(1);
189 }
190 if (isOutIntPacked) {
191 outFormatter ^= DOSWAP_SH(1);
192 }
193#endif
194
195 if (DF_ICC_BUF_SIZE < size*2) {
196 iccArray = (cmsHPROFILE*) malloc(
197 size*2*sizeof(cmsHPROFILE));
198 if (iccArray == NULL) {
199 (*env)->ReleaseLongArrayElements(env, profileIDs, ids, 0);
200
201 J2dRlsTraceLn(J2D_TRACE_ERROR, "getXForm: iccArray == NULL");
202 return 0L;
203 }
204 }
205
206 j = 0;
207 for (i = 0; i < size; i++) {
208 cmsColorSpaceSignature cs;
209 lcmsProfile_p profilePtr = (lcmsProfile_p)jlong_to_ptr(ids[i]);
210 cmsHPROFILE icc = profilePtr->pf;
211
212 iccArray[j++] = icc;
213
214 /* Middle non-abstract profiles should be doubled before passing to
215 * the cmsCreateMultiprofileTransform function
216 */
217
218 cs = cmsGetColorSpace(icc);
219 if (size > 2 && i != 0 && i != size - 1 &&
220 cs != cmsSigXYZData && cs != cmsSigLabData)
221 {
222 iccArray[j++] = icc;
223 }
224 }
225
226 sTrans = cmsCreateMultiprofileTransform(iccArray, j,
227 inFormatter, outFormatter, renderType, 0);
228
229 (*env)->ReleaseLongArrayElements(env, profileIDs, ids, 0);
230
231 if (sTrans == NULL) {
232 J2dRlsTraceLn(J2D_TRACE_ERROR, "LCMS_createNativeTransform: "
233 "sTrans == NULL");
234 if ((*env)->ExceptionOccurred(env) == NULL) {
235 JNU_ThrowByName(env, "java/awt/color/CMMException",
236 "Cannot get color transform");
237 }
238 } else {
239 Disposer_AddRecord(env, disposerRef, LCMS_freeTransform, ptr_to_jlong(sTrans));
240 }
241
242 if (iccArray != &_iccArray[0]) {
243 free(iccArray);
244 }
245 return ptr_to_jlong(sTrans);
246}
247
248
249/*
250 * Class: sun_java2d_cmm_lcms_LCMS
251 * Method: loadProfile
252 * Signature: ([B,Lsun/java2d/cmm/lcms/LCMSProfile;)V
253 */
254JNIEXPORT jlong JNICALL Java_sun_java2d_cmm_lcms_LCMS_loadProfileNative
255 (JNIEnv *env, jobject obj, jbyteArray data, jobject disposerRef)
256{
257 jbyte* dataArray;
258 jint dataSize;
259 lcmsProfile_p sProf = NULL;
260 cmsHPROFILE pf;
261
262 if (JNU_IsNull(env, data)) {
263 JNU_ThrowIllegalArgumentException(env, "Invalid profile data");
264 return 0L;
265 }
266
267 dataArray = (*env)->GetByteArrayElements (env, data, 0);
268 if (dataArray == NULL) {
269 // An exception should have already been thrown.
270 return 0L;
271 }
272
273 dataSize = (*env)->GetArrayLength (env, data);
274
275 pf = cmsOpenProfileFromMem((const void *)dataArray,
276 (cmsUInt32Number) dataSize);
277
278 (*env)->ReleaseByteArrayElements (env, data, dataArray, 0);
279
280 if (pf == NULL) {
281 JNU_ThrowIllegalArgumentException(env, "Invalid profile data");
282 } else {
283 /* Sanity check: try to save the profile in order
284 * to force basic validation.
285 */
286 cmsUInt32Number pfSize = 0;
287 if (!cmsSaveProfileToMem(pf, NULL, &pfSize) ||
288 pfSize < sizeof(cmsICCHeader))
289 {
290 JNU_ThrowIllegalArgumentException(env, "Invalid profile data");
291
292 cmsCloseProfile(pf);
293 pf = NULL;
294 }
295 }
296
297 if (pf != NULL) {
298 // create profile holder
299 sProf = (lcmsProfile_p)malloc(sizeof(lcmsProfile_t));
300 if (sProf != NULL) {
301 // register the disposer record
302 sProf->pf = pf;
303 Disposer_AddRecord(env, disposerRef, LCMS_freeProfile, ptr_to_jlong(sProf));
304 } else {
305 cmsCloseProfile(pf);
306 }
307 }
308
309 return ptr_to_jlong(sProf);
310}
311
312/*
313 * Class: sun_java2d_cmm_lcms_LCMS
314 * Method: getProfileSizeNative
315 * Signature: (J)I
316 */
317JNIEXPORT jint JNICALL Java_sun_java2d_cmm_lcms_LCMS_getProfileSizeNative
318 (JNIEnv *env, jobject obj, jlong id)
319{
320 lcmsProfile_p sProf = (lcmsProfile_p)jlong_to_ptr(id);
321 cmsUInt32Number pfSize = 0;
322
323 if (cmsSaveProfileToMem(sProf->pf, NULL, &pfSize) && ((jint)pfSize > 0)) {
324 return (jint)pfSize;
325 } else {
326 JNU_ThrowByName(env, "java/awt/color/CMMException",
327 "Can not access specified profile.");
328 return -1;
329 }
330}
331
332/*
333 * Class: sun_java2d_cmm_lcms_LCMS
334 * Method: getProfileDataNative
335 * Signature: (J[B)V
336 */
337JNIEXPORT void JNICALL Java_sun_java2d_cmm_lcms_LCMS_getProfileDataNative
338 (JNIEnv *env, jobject obj, jlong id, jbyteArray data)
339{
340 lcmsProfile_p sProf = (lcmsProfile_p)jlong_to_ptr(id);
341 jint size;
342 jbyte* dataArray;
343 cmsUInt32Number pfSize = 0;
344 cmsBool status;
345
346 // determine actual profile size
347 if (!cmsSaveProfileToMem(sProf->pf, NULL, &pfSize)) {
348 JNU_ThrowByName(env, "java/awt/color/CMMException",
349 "Can not access specified profile.");
350 return;
351 }
352
353 // verify java buffer capacity
354 size = (*env)->GetArrayLength(env, data);
355 if (0 >= size || pfSize > (cmsUInt32Number)size) {
356 JNU_ThrowByName(env, "java/awt/color/CMMException",
357 "Insufficient buffer capacity.");
358 return;
359 }
360
361 dataArray = (*env)->GetByteArrayElements (env, data, 0);
362 if (dataArray == NULL) {
363 // An exception should have already been thrown.
364 return;
365 }
366
367 status = cmsSaveProfileToMem(sProf->pf, dataArray, &pfSize);
368
369 (*env)->ReleaseByteArrayElements (env, data, dataArray, 0);
370
371 if (!status) {
372 JNU_ThrowByName(env, "java/awt/color/CMMException",
373 "Can not access specified profile.");
374 return;
375 }
376}
377
378/* Get profile header info */
379static cmsBool _getHeaderInfo(cmsHPROFILE pf, jbyte* pBuffer, jint bufferSize);
380static cmsBool _setHeaderInfo(cmsHPROFILE pf, jbyte* pBuffer, jint bufferSize);
381static cmsHPROFILE _writeCookedTag(cmsHPROFILE pfTarget, cmsTagSignature sig, jbyte *pData, jint size);
382
383
384/*
385 * Class: sun_java2d_cmm_lcms_LCMS
386 * Method: getTagData
387 * Signature: (JI[B)V
388 */
389JNIEXPORT jbyteArray JNICALL Java_sun_java2d_cmm_lcms_LCMS_getTagNative
390 (JNIEnv *env, jobject obj, jlong id, jint tagSig)
391{
392 lcmsProfile_p sProf = (lcmsProfile_p)jlong_to_ptr(id);
393 TagSignature_t sig;
394 cmsUInt32Number tagSize;
395
396 jbyte* dataArray = NULL;
397 jbyteArray data = NULL;
398
399 cmsUInt32Number bufSize;
400
401 sig.j = tagSig;
402
403 if (tagSig == SigHead) {
404 cmsBool status;
405
406 // allocate java array
407 bufSize = sizeof(cmsICCHeader);
408 data = (*env)->NewByteArray(env, bufSize);
409
410 if (data == NULL) {
411 // An exception should have already been thrown.
412 return NULL;
413 }
414
415 dataArray = (*env)->GetByteArrayElements (env, data, 0);
416
417 if (dataArray == NULL) {
418 // An exception should have already been thrown.
419 return NULL;
420 }
421
422 status = _getHeaderInfo(sProf->pf, dataArray, bufSize);
423
424 (*env)->ReleaseByteArrayElements (env, data, dataArray, 0);
425
426 if (!status) {
427 JNU_ThrowByName(env, "java/awt/color/CMMException",
428 "ICC Profile header not found");
429 return NULL;
430 }
431
432 return data;
433 }
434
435 if (cmsIsTag(sProf->pf, sig.cms)) {
436 tagSize = cmsReadRawTag(sProf->pf, sig.cms, NULL, 0);
437 } else {
438 JNU_ThrowByName(env, "java/awt/color/CMMException",
439 "ICC profile tag not found");
440 return NULL;
441 }
442
443 // allocate java array
444 data = (*env)->NewByteArray(env, tagSize);
445 if (data == NULL) {
446 // An exception should have already been thrown.
447 return NULL;
448 }
449
450 dataArray = (*env)->GetByteArrayElements (env, data, 0);
451
452 if (dataArray == NULL) {
453 // An exception should have already been thrown.
454 return NULL;
455 }
456
457 bufSize = cmsReadRawTag(sProf->pf, sig.cms, dataArray, tagSize);
458
459 (*env)->ReleaseByteArrayElements (env, data, dataArray, 0);
460
461 if (bufSize != tagSize) {
462 JNU_ThrowByName(env, "java/awt/color/CMMException",
463 "Can not get tag data.");
464 return NULL;
465 }
466 return data;
467}
468
469/*
470 * Class: sun_java2d_cmm_lcms_LCMS
471 * Method: setTagData
472 * Signature: (JI[B)V
473 */
474JNIEXPORT void JNICALL Java_sun_java2d_cmm_lcms_LCMS_setTagDataNative
475 (JNIEnv *env, jobject obj, jlong id, jint tagSig, jbyteArray data)
476{
477 lcmsProfile_p sProf = (lcmsProfile_p)jlong_to_ptr(id);
478 cmsHPROFILE pfReplace = NULL;
479
480 TagSignature_t sig;
481 cmsBool status = FALSE;
482 jbyte* dataArray;
483 int tagSize;
484
485 sig.j = tagSig;
486
487 if (JNU_IsNull(env, data)) {
488 JNU_ThrowIllegalArgumentException(env, "Can not write tag data.");
489 return;
490 }
491
492 tagSize =(*env)->GetArrayLength(env, data);
493
494 dataArray = (*env)->GetByteArrayElements(env, data, 0);
495
496 if (dataArray == NULL) {
497 // An exception should have already been thrown.
498 return;
499 }
500
501 if (tagSig == SigHead) {
502 status = _setHeaderInfo(sProf->pf, dataArray, tagSize);
503 } else {
504 /*
505 * New strategy for generic tags: create a place holder,
506 * dump all existing tags there, dump externally supplied
507 * tag, and return the new profile to the java.
508 */
509 pfReplace = _writeCookedTag(sProf->pf, sig.cms, dataArray, tagSize);
510 status = (pfReplace != NULL);
511 }
512
513 (*env)->ReleaseByteArrayElements(env, data, dataArray, 0);
514
515 if (!status) {
516 JNU_ThrowIllegalArgumentException(env, "Can not write tag data.");
517 } else if (pfReplace != NULL) {
518 cmsCloseProfile(sProf->pf);
519 sProf->pf = pfReplace;
520 }
521}
522
523void* getILData (JNIEnv *env, jobject img, jint* pDataType,
524 jobject* pDataObject) {
525 void* result = NULL;
526 *pDataType = (*env)->GetIntField (env, img, IL_dataType_fID);
527 *pDataObject = (*env)->GetObjectField(env, img, IL_dataArray_fID);
528 switch (*pDataType) {
529 case DT_BYTE:
530 result = (*env)->GetByteArrayElements (env, *pDataObject, 0);
531 break;
532 case DT_SHORT:
533 result = (*env)->GetShortArrayElements (env, *pDataObject, 0);
534 break;
535 case DT_INT:
536 result = (*env)->GetIntArrayElements (env, *pDataObject, 0);
537 break;
538 case DT_DOUBLE:
539 result = (*env)->GetDoubleArrayElements (env, *pDataObject, 0);
540 break;
541 }
542
543 return result;
544}
545
546void releaseILData (JNIEnv *env, void* pData, jint dataType,
547 jobject dataObject) {
548 switch (dataType) {
549 case DT_BYTE:
550 (*env)->ReleaseByteArrayElements(env,dataObject,(jbyte*)pData,0);
551 break;
552 case DT_SHORT:
553 (*env)->ReleaseShortArrayElements(env,dataObject,(jshort*)pData, 0);
554 break;
555 case DT_INT:
556 (*env)->ReleaseIntArrayElements(env,dataObject,(jint*)pData,0);
557 break;
558 case DT_DOUBLE:
559 (*env)->ReleaseDoubleArrayElements(env,dataObject,(jdouble*)pData,
560 0);
561 break;
562 }
563}
564
565/*
566 * Class: sun_java2d_cmm_lcms_LCMS
567 * Method: colorConvert
568 * Signature: (Lsun/java2d/cmm/lcms/LCMSTransform;Lsun/java2d/cmm/lcms/LCMSImageLayout;Lsun/java2d/cmm/lcms/LCMSImageLayout;)V
569 */
570JNIEXPORT void JNICALL Java_sun_java2d_cmm_lcms_LCMS_colorConvert
571 (JNIEnv *env, jclass obj, jobject trans, jobject src, jobject dst)
572{
573 cmsHTRANSFORM sTrans = NULL;
574 int srcDType, dstDType;
575 int srcOffset, srcNextRowOffset, dstOffset, dstNextRowOffset;
576 int width, height, i;
577 void* inputBuffer;
578 void* outputBuffer;
579 char* inputRow;
580 char* outputRow;
581 jobject srcData, dstData;
582 jboolean srcAtOnce = JNI_FALSE, dstAtOnce = JNI_FALSE;
583
584 srcOffset = (*env)->GetIntField (env, src, IL_offset_fID);
585 srcNextRowOffset = (*env)->GetIntField (env, src, IL_nextRowOffset_fID);
586 dstOffset = (*env)->GetIntField (env, dst, IL_offset_fID);
587 dstNextRowOffset = (*env)->GetIntField (env, dst, IL_nextRowOffset_fID);
588 width = (*env)->GetIntField (env, src, IL_width_fID);
589 height = (*env)->GetIntField (env, src, IL_height_fID);
590
591 srcAtOnce = (*env)->GetBooleanField(env, src, IL_imageAtOnce_fID);
592 dstAtOnce = (*env)->GetBooleanField(env, dst, IL_imageAtOnce_fID);
593
594 sTrans = jlong_to_ptr((*env)->GetLongField (env, trans, Trans_ID_fID));
595
596 if (sTrans == NULL) {
597 J2dRlsTraceLn(J2D_TRACE_ERROR, "LCMS_colorConvert: transform == NULL");
598 JNU_ThrowByName(env, "java/awt/color/CMMException",
599 "Cannot get color transform");
600 return;
601 }
602
603
604 inputBuffer = getILData (env, src, &srcDType, &srcData);
605
606 if (inputBuffer == NULL) {
607 J2dRlsTraceLn(J2D_TRACE_ERROR, "");
608 // An exception should have already been thrown.
609 return;
610 }
611
612 outputBuffer = getILData (env, dst, &dstDType, &dstData);
613
614 if (outputBuffer == NULL) {
615 releaseILData(env, inputBuffer, srcDType, srcData);
616 // An exception should have already been thrown.
617 return;
618 }
619
620 inputRow = (char*)inputBuffer + srcOffset;
621 outputRow = (char*)outputBuffer + dstOffset;
622
623 if (srcAtOnce && dstAtOnce) {
624 cmsDoTransform(sTrans, inputRow, outputRow, width * height);
625 } else {
626 for (i = 0; i < height; i++) {
627 cmsDoTransform(sTrans, inputRow, outputRow, width);
628 inputRow += srcNextRowOffset;
629 outputRow += dstNextRowOffset;
630 }
631 }
632
633 releaseILData(env, inputBuffer, srcDType, srcData);
634 releaseILData(env, outputBuffer, dstDType, dstData);
635}
636
637/*
638 * Class: sun_java2d_cmm_lcms_LCMS
639 * Method: getProfileID
640 * Signature: (Ljava/awt/color/ICC_Profile;)Lsun/java2d/cmm/lcms/LCMSProfile
641 */
642JNIEXPORT jobject JNICALL Java_sun_java2d_cmm_lcms_LCMS_getProfileID
643 (JNIEnv *env, jclass cls, jobject pf)
644{
645 jclass clsLcmsProfile;
646 jobject cmmProfile;
647 jfieldID fid;
648
649 if (pf == NULL) {
650 return NULL;
651 }
652 fid = (*env)->GetFieldID (env,
653 (*env)->GetObjectClass(env, pf),
654 "cmmProfile", "Lsun/java2d/cmm/Profile;");
655 if (fid == NULL) {
656 return NULL;
657 }
658
659 clsLcmsProfile = (*env)->FindClass(env,
660 "sun/java2d/cmm/lcms/LCMSProfile");
661 if (clsLcmsProfile == NULL) {
662 return NULL;
663 }
664
665 cmmProfile = (*env)->GetObjectField (env, pf, fid);
666
667 if (JNU_IsNull(env, cmmProfile)) {
668 return NULL;
669 }
670 if ((*env)->IsInstanceOf(env, cmmProfile, clsLcmsProfile)) {
671 return cmmProfile;
672 }
673 return NULL;
674}
675
676/*
677 * Class: sun_java2d_cmm_lcms_LCMS
678 * Method: initLCMS
679 * Signature: (Ljava/lang/Class;Ljava/lang/Class;Ljava/lang/Class;)V
680 */
681JNIEXPORT void JNICALL Java_sun_java2d_cmm_lcms_LCMS_initLCMS
682 (JNIEnv *env, jclass cls, jclass Trans, jclass IL, jclass Pf)
683{
684 /* TODO: move initialization of the IDs to the static blocks of
685 * corresponding classes to avoid problems with invalidating ids by class
686 * unloading
687 */
688 Trans_renderType_fID = (*env)->GetFieldID (env, Trans, "renderType", "I");
689 if (Trans_renderType_fID == NULL) {
690 return;
691 }
692 Trans_ID_fID = (*env)->GetFieldID (env, Trans, "ID", "J");
693 if (Trans_ID_fID == NULL) {
694 return;
695 }
696
697 IL_isIntPacked_fID = (*env)->GetFieldID (env, IL, "isIntPacked", "Z");
698 if (IL_isIntPacked_fID == NULL) {
699 return;
700 }
701 IL_dataType_fID = (*env)->GetFieldID (env, IL, "dataType", "I");
702 if (IL_dataType_fID == NULL) {
703 return;
704 }
705 IL_pixelType_fID = (*env)->GetFieldID (env, IL, "pixelType", "I");
706 if (IL_pixelType_fID == NULL) {
707 return;
708 }
709 IL_dataArray_fID = (*env)->GetFieldID(env, IL, "dataArray",
710 "Ljava/lang/Object;");
711 if (IL_dataArray_fID == NULL) {
712 return;
713 }
714 IL_width_fID = (*env)->GetFieldID (env, IL, "width", "I");
715 if (IL_width_fID == NULL) {
716 return;
717 }
718 IL_height_fID = (*env)->GetFieldID (env, IL, "height", "I");
719 if (IL_height_fID == NULL) {
720 return;
721 }
722 IL_offset_fID = (*env)->GetFieldID (env, IL, "offset", "I");
723 if (IL_offset_fID == NULL) {
724 return;
725 }
726 IL_imageAtOnce_fID = (*env)->GetFieldID (env, IL, "imageAtOnce", "Z");
727 if (IL_imageAtOnce_fID == NULL) {
728 return;
729 }
730 IL_nextRowOffset_fID = (*env)->GetFieldID (env, IL, "nextRowOffset", "I");
731 if (IL_nextRowOffset_fID == NULL) {
732 return;
733 }
734}
735
736static cmsBool _getHeaderInfo(cmsHPROFILE pf, jbyte* pBuffer, jint bufferSize)
737{
738 cmsUInt32Number pfSize = 0;
739 cmsUInt8Number* pfBuffer = NULL;
740 cmsBool status = FALSE;
741
742 if (!cmsSaveProfileToMem(pf, NULL, &pfSize) ||
743 pfSize < sizeof(cmsICCHeader) ||
744 bufferSize < (jint)sizeof(cmsICCHeader))
745 {
746 return FALSE;
747 }
748
749 pfBuffer = malloc(pfSize);
750 if (pfBuffer == NULL) {
751 return FALSE;
752 }
753
754 // load raw profile data into the buffer
755 if (cmsSaveProfileToMem(pf, pfBuffer, &pfSize)) {
756 memcpy(pBuffer, pfBuffer, sizeof(cmsICCHeader));
757 status = TRUE;
758 }
759 free(pfBuffer);
760 return status;
761}
762
763static cmsBool _setHeaderInfo(cmsHPROFILE pf, jbyte* pBuffer, jint bufferSize)
764{
765 cmsICCHeader pfHeader;
766
767 if (pBuffer == NULL || bufferSize < (jint)sizeof(cmsICCHeader)) {
768 return FALSE;
769 }
770
771 memcpy(&pfHeader, pBuffer, sizeof(cmsICCHeader));
772
773 // now set header fields, which we can access using the lcms2 public API
774 cmsSetHeaderFlags(pf, pfHeader.flags);
775 cmsSetHeaderManufacturer(pf, pfHeader.manufacturer);
776 cmsSetHeaderModel(pf, pfHeader.model);
777 cmsSetHeaderAttributes(pf, pfHeader.attributes);
778 cmsSetHeaderProfileID(pf, (cmsUInt8Number*)&(pfHeader.profileID));
779 cmsSetHeaderRenderingIntent(pf, pfHeader.renderingIntent);
780 cmsSetPCS(pf, pfHeader.pcs);
781 cmsSetColorSpace(pf, pfHeader.colorSpace);
782 cmsSetDeviceClass(pf, pfHeader.deviceClass);
783 cmsSetEncodedICCversion(pf, pfHeader.version);
784
785 return TRUE;
786}
787
788/* Returns new profile handler, if it was created successfully,
789 NULL otherwise.
790 */
791static cmsHPROFILE _writeCookedTag(const cmsHPROFILE pfTarget,
792 const cmsTagSignature sig,
793 jbyte *pData, jint size)
794{
795 cmsUInt32Number pfSize = 0;
796 const cmsInt32Number tagCount = cmsGetTagCount(pfTarget);
797 cmsInt32Number i;
798 cmsHPROFILE pfSanity = NULL;
799
800 cmsICCHeader hdr;
801
802 cmsHPROFILE p = cmsCreateProfilePlaceholder(NULL);
803
804 if (NULL == p) {
805 return NULL;
806 }
807 memset(&hdr, 0, sizeof(cmsICCHeader));
808
809 // Populate the placeholder's header according to target profile
810 hdr.flags = cmsGetHeaderFlags(pfTarget);
811 hdr.renderingIntent = cmsGetHeaderRenderingIntent(pfTarget);
812 hdr.manufacturer = cmsGetHeaderManufacturer(pfTarget);
813 hdr.model = cmsGetHeaderModel(pfTarget);
814 hdr.pcs = cmsGetPCS(pfTarget);
815 hdr.colorSpace = cmsGetColorSpace(pfTarget);
816 hdr.deviceClass = cmsGetDeviceClass(pfTarget);
817 hdr.version = cmsGetEncodedICCversion(pfTarget);
818 cmsGetHeaderAttributes(pfTarget, &hdr.attributes);
819 cmsGetHeaderProfileID(pfTarget, (cmsUInt8Number*)&hdr.profileID);
820
821 cmsSetHeaderFlags(p, hdr.flags);
822 cmsSetHeaderManufacturer(p, hdr.manufacturer);
823 cmsSetHeaderModel(p, hdr.model);
824 cmsSetHeaderAttributes(p, hdr.attributes);
825 cmsSetHeaderProfileID(p, (cmsUInt8Number*)&(hdr.profileID));
826 cmsSetHeaderRenderingIntent(p, hdr.renderingIntent);
827 cmsSetPCS(p, hdr.pcs);
828 cmsSetColorSpace(p, hdr.colorSpace);
829 cmsSetDeviceClass(p, hdr.deviceClass);
830 cmsSetEncodedICCversion(p, hdr.version);
831
832 // now write the user supplied tag
833 if (size <= 0 || !cmsWriteRawTag(p, sig, pData, size)) {
834 cmsCloseProfile(p);
835 return NULL;
836 }
837
838 // copy tags from the original profile
839 for (i = 0; i < tagCount; i++) {
840 cmsBool isTagReady = FALSE;
841 const cmsTagSignature s = cmsGetTagSignature(pfTarget, i);
842 const cmsUInt32Number tagSize = cmsReadRawTag(pfTarget, s, NULL, 0);
843
844 if (s == sig) {
845 // skip the user supplied tag
846 continue;
847 }
848
849 // read raw tag from the original profile
850 if (tagSize > 0) {
851 cmsUInt8Number* buf = (cmsUInt8Number*)malloc(tagSize);
852 if (buf != NULL) {
853 if (tagSize == cmsReadRawTag(pfTarget, s, buf, tagSize)) {
854 // now we are ready to write the tag
855 isTagReady = cmsWriteRawTag(p, s, buf, tagSize);
856 }
857 free(buf);
858 }
859 }
860
861 if (!isTagReady) {
862 cmsCloseProfile(p);
863 return NULL;
864 }
865 }
866
867 // now we have all tags moved to the new profile.
868 // do some sanity checks: write it to a memory buffer and read again.
869 if (cmsSaveProfileToMem(p, NULL, &pfSize)) {
870 void* buf = malloc(pfSize);
871 if (buf != NULL) {
872 // load raw profile data into the buffer
873 if (cmsSaveProfileToMem(p, buf, &pfSize)) {
874 pfSanity = cmsOpenProfileFromMem(buf, pfSize);
875 }
876 free(buf);
877 }
878 }
879
880 if (pfSanity == NULL) {
881 // for some reason, we failed to save and read the updated profile
882 // It likely indicates that the profile is not correct, so we report
883 // a failure here.
884 cmsCloseProfile(p);
885 p = NULL;
886 } else {
887 // do final check whether we can read and handle the target tag.
888 const void* pTag = cmsReadTag(pfSanity, sig);
889 if (pTag == NULL) {
890 // the tag can not be cooked
891 cmsCloseProfile(p);
892 p = NULL;
893 }
894 cmsCloseProfile(pfSanity);
895 pfSanity = NULL;
896 }
897
898 return p;
899}
900