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authoralwin <alwin>2004-11-06 02:55:10 (UTC)
committer alwin <alwin>2004-11-06 02:55:10 (UTC)
commit466245b561abe1514ef37ea978b5958caefdc962 (patch) (unidiff)
treeffddedceb28868e74372a7f49f35893c1b61933d
parentf9e604b8ae921c5e6a0d6e4117fabd367643e23c (diff)
downloadopie-466245b561abe1514ef37ea978b5958caefdc962.zip
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moved a lot of code to the library
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--noncore/graphics/opie-eye/slave/jpeg_slave.cpp1256
-rw-r--r--noncore/graphics/opie-eye/slave/slave.pro2
2 files changed, 10 insertions, 1248 deletions
diff --git a/noncore/graphics/opie-eye/slave/jpeg_slave.cpp b/noncore/graphics/opie-eye/slave/jpeg_slave.cpp
index 1bb81d9..668ad13 100644
--- a/noncore/graphics/opie-eye/slave/jpeg_slave.cpp
+++ b/noncore/graphics/opie-eye/slave/jpeg_slave.cpp
@@ -5,1136 +5,14 @@ PHUNK_VIEW_INTERFACE( "JPEG", JpegSlave )
5 5
6/* OPIE */ 6/* OPIE */
7#include <opie2/odebug.h> 7#include <opie2/odebug.h>
8#include <opie2/opieexif.h>
8#include <qpe/timestring.h> 9#include <qpe/timestring.h>
9using namespace Opie::Core; 10using namespace Opie::Core;
11using namespace Opie::MM;
10 12
11/* QT */ 13/* QT */
12#include <qobject.h> 14#include <qobject.h>
13#include <qimage.h> 15#include <qimage.h>
14
15/**
16 exif.h
17*/
18
19#include <stdio.h>
20#include <stdlib.h>
21#include <math.h>
22#include <time.h>
23
24#include <qstring.h>
25#include <qfile.h>
26#include <qimage.h>
27
28typedef enum {
29 READ_EXIF = 1,
30 READ_IMAGE = 2,
31 READ_ALL = 3
32}ReadMode_t;
33
34//--------------------------------------------------------------------------
35// This structure is used to store jpeg file sections in memory.
36typedef struct {
37 uchar * Data;
38 int Type;
39 unsigned Size;
40}Section_t;
41
42typedef unsigned char uchar;
43
44typedef struct {
45 unsigned short Tag;
46 const char*const Desc;
47}TagTable_t;
48
49#define MAX_SECTIONS 20
50#define PSEUDO_IMAGE_MARKER 0x123; // Extra value.
51
52class ExifData {
53 Section_t Sections[MAX_SECTIONS];
54
55 QString CameraMake;
56 QString CameraModel;
57 QString DateTime;
58 int Orientation;
59 int Height, Width;
60 int ExifImageLength, ExifImageWidth;
61 int IsColor;
62 int Process;
63 int FlashUsed;
64 float FocalLength;
65 float ExposureTime;
66 float ApertureFNumber;
67 float Distance;
68 int Whitebalance;
69 int MeteringMode;
70 float CCDWidth;
71 float ExposureBias;
72 int ExposureProgram;
73 int ISOequivalent;
74 int CompressionLevel;
75 QString UserComment;
76 QString Comment;
77 QImage Thumbnail;
78
79 int ReadJpegSections (QFile & infile, ReadMode_t ReadMode);
80 void DiscardData(void);
81 int Get16u(void * Short);
82 int Get32s(void * Long);
83 unsigned Get32u(void * Long);
84 double ConvertAnyFormat(void * ValuePtr, int Format);
85 void ProcessExifDir(unsigned char * DirStart, unsigned char * OffsetBase, unsigned ExifLength);
86 void process_COM (const uchar * Data, int length);
87 void process_SOFn (const uchar * Data, int marker);
88 int Get16m(const void * Short);
89 void process_EXIF(unsigned char * CharBuf, unsigned int length);
90 int Exif2tm(struct tm * timeptr, char * ExifTime);
91
92public:
93 ExifData();
94 bool scan(const QString &);
95 QString getCameraMake() { return CameraMake; }
96 QString getCameraModel() { return CameraModel; }
97 QString getDateTime() { return DateTime; }
98 int getOrientation() { return Orientation; }
99 int getHeight() { return Height; }
100 int getWidth() { return Width; }
101 int getIsColor() { return IsColor; }
102 int getProcess() { return Process; }
103 int getFlashUsed() { return FlashUsed; }
104 float getFocalLength() { return FocalLength; }
105 float getExposureTime() { return ExposureTime; }
106 float getApertureFNumber() { return ApertureFNumber; }
107 float getDistance() { return Distance; }
108 int getWhitebalance() { return Whitebalance; }
109 int getMeteringMode() { return MeteringMode; }
110 float getCCDWidth() { return CCDWidth; }
111 float getExposureBias() { return ExposureBias; }
112 int getExposureProgram() { return ExposureProgram; }
113 int getISOequivalent() { return ISOequivalent; }
114 int getCompressionLevel() { return CompressionLevel; }
115 QString getUserComment() { return UserComment; }
116 QString getComment() { return Comment; }
117 QImage getThumbnail();
118 bool isThumbnailSane();
119 bool isNullThumbnail() { return !isThumbnailSane(); }
120};
121
122class FatalError {
123 const char* ex;
124public:
125 FatalError(const char* s) { ex = s; }
126 void debug_print() const { owarn << "exception: " << ex << "" << oendl; }
127};
128
129
130
131static unsigned char * LastExifRefd;
132static int ExifSettingsLength;
133static double FocalplaneXRes;
134static double FocalplaneUnits;
135static int MotorolaOrder = 0;
136static int SectionsRead;
137//static int HaveAll;
138
139//--------------------------------------------------------------------------
140// Table of Jpeg encoding process names
141
142#define M_SOF0 0xC0 // Start Of Frame N
143#define M_SOF1 0xC1 // N indicates which compression process
144#define M_SOF2 0xC2 // Only SOF0-SOF2 are now in common use
145#define M_SOF3 0xC3
146#define M_SOF5 0xC5 // NB: codes C4 and CC are NOT SOF markers
147#define M_SOF6 0xC6
148#define M_SOF7 0xC7
149#define M_SOF9 0xC9
150#define M_SOF10 0xCA
151#define M_SOF11 0xCB
152#define M_SOF13 0xCD
153#define M_SOF14 0xCE
154#define M_SOF15 0xCF
155#define M_SOI 0xD8 // Start Of Image (beginning of datastream)
156#define M_EOI 0xD9 // End Of Image (end of datastream)
157#define M_SOS 0xDA // Start Of Scan (begins compressed data)
158#define M_JFIF 0xE0 // Jfif marker
159#define M_EXIF 0xE1 // Exif marker
160#define M_COM 0xFE // COMment
161
162
163TagTable_t ProcessTable[] = {
164 { M_SOF0, "Baseline"},
165 { M_SOF1, "Extended sequential"},
166 { M_SOF2, "Progressive"},
167 { M_SOF3, "Lossless"},
168 { M_SOF5, "Differential sequential"},
169 { M_SOF6, "Differential progressive"},
170 { M_SOF7, "Differential lossless"},
171 { M_SOF9, "Extended sequential, arithmetic coding"},
172 { M_SOF10, "Progressive, arithmetic coding"},
173 { M_SOF11, "Lossless, arithmetic coding"},
174 { M_SOF13, "Differential sequential, arithmetic coding"},
175 { M_SOF14, "Differential progressive, arithmetic coding"},
176 { M_SOF15, "Differential lossless, arithmetic coding"},
177 { 0, "Unknown"}
178};
179
180
181
182//--------------------------------------------------------------------------
183// Describes format descriptor
184static int BytesPerFormat[] = {0,1,1,2,4,8,1,1,2,4,8,4,8};
185#define NUM_FORMATS 12
186
187#define FMT_BYTE 1
188#define FMT_STRING 2
189#define FMT_USHORT 3
190#define FMT_ULONG 4
191#define FMT_URATIONAL 5
192#define FMT_SBYTE 6
193#define FMT_UNDEFINED 7
194#define FMT_SSHORT 8
195#define FMT_SLONG 9
196#define FMT_SRATIONAL 10
197#define FMT_SINGLE 11
198#define FMT_DOUBLE 12
199
200//--------------------------------------------------------------------------
201// Describes tag values
202
203#define TAG_EXIF_OFFSET 0x8769
204#define TAG_INTEROP_OFFSET 0xa005
205
206#define TAG_MAKE 0x010F
207#define TAG_MODEL 0x0110
208#define TAG_ORIENTATION 0x0112
209
210#define TAG_EXPOSURETIME 0x829A
211#define TAG_FNUMBER 0x829D
212
213#define TAG_SHUTTERSPEED 0x9201
214#define TAG_APERTURE 0x9202
215#define TAG_MAXAPERTURE 0x9205
216#define TAG_FOCALLENGTH 0x920A
217
218#define TAG_DATETIME_ORIGINAL 0x9003
219#define TAG_USERCOMMENT 0x9286
220
221#define TAG_SUBJECT_DISTANCE 0x9206
222#define TAG_FLASH 0x9209
223
224#define TAG_FOCALPLANEXRES 0xa20E
225#define TAG_FOCALPLANEUNITS 0xa210
226#define TAG_EXIF_IMAGEWIDTH 0xA002
227#define TAG_EXIF_IMAGELENGTH 0xA003
228
229// the following is added 05-jan-2001 vcs
230#define TAG_EXPOSURE_BIAS 0x9204
231#define TAG_WHITEBALANCE 0x9208
232#define TAG_METERING_MODE 0x9207
233#define TAG_EXPOSURE_PROGRAM 0x8822
234#define TAG_ISO_EQUIVALENT 0x8827
235#define TAG_COMPRESSION_LEVEL 0x9102
236
237#define TAG_THUMBNAIL_OFFSET 0x0201
238#define TAG_THUMBNAIL_LENGTH 0x0202
239
240
241
242
243//--------------------------------------------------------------------------
244// Parse the marker stream until SOS or EOI is seen;
245//--------------------------------------------------------------------------
246int ExifData::ReadJpegSections (QFile & infile, ReadMode_t ReadMode)
247{
248 int a;
249
250 a = infile.getch();
251
252 if (a != 0xff || infile.getch() != M_SOI) {
253 SectionsRead = 0;
254 return false;
255 }
256 for(SectionsRead = 0; SectionsRead < MAX_SECTIONS-1; ){
257 int marker = 0;
258 int got;
259 unsigned int ll,lh;
260 unsigned int itemlen;
261 uchar * Data;
262
263 for (a=0;a<7;a++){
264 marker = infile.getch();
265 if (marker != 0xff) break;
266
267 if (a >= 6){
268
269 owarn << "too many padding bytes" << oendl;
270 return false;
271
272 }
273 }
274
275 if (marker == 0xff){
276 // 0xff is legal padding, but if we get that many, something's wrong.
277 return false;
278 }
279
280 Sections[SectionsRead].Type = marker;
281
282 // Read the length of the section.
283 lh = (uchar) infile.getch();
284 ll = (uchar) infile.getch();
285
286 itemlen = (lh << 8) | ll;
287
288 if (itemlen < 2) {
289 return false;;
290 }
291
292 Sections[SectionsRead].Size = itemlen;
293
294 Data = (uchar *)malloc(itemlen+1); // Add 1 to allow sticking a 0 at the end.
295 Sections[SectionsRead].Data = Data;
296
297 // Store first two pre-read bytes.
298 Data[0] = (uchar)lh;
299 Data[1] = (uchar)ll;
300
301 got = infile.readBlock((char*)Data+2, itemlen-2); // Read the whole section.
302 if (( unsigned ) got != itemlen-2){
303 return false;
304 }
305 SectionsRead++;
306
307 switch(marker){
308
309 case M_SOS: // stop before hitting compressed data
310 // If reading entire image is requested, read the rest of the data.
311 if (ReadMode & READ_IMAGE){
312 unsigned long size;
313
314 size = QMAX( 0ul, infile.size()-infile.at() );
315 Data = (uchar *)malloc(size);
316 if (Data == NULL){
317 return false;
318 }
319
320 got = infile.readBlock((char*)Data, size);
321 if (( unsigned ) got != size){
322 return false;
323 }
324
325 Sections[SectionsRead].Data = Data;
326 Sections[SectionsRead].Size = size;
327 Sections[SectionsRead].Type = PSEUDO_IMAGE_MARKER;
328 SectionsRead ++;
329 //HaveAll = 1;
330 }
331 return true;
332
333 case M_EOI: // in case it's a tables-only JPEG stream
334 owarn << "No image in jpeg!" << oendl;
335 return false;
336
337 case M_COM: // Comment section
338 // pieczy 2002-02-12
339 // now the User comment goes to UserComment
340 // so we can store a Comment section also in READ_EXIF mode
341 process_COM(Data, itemlen);
342 break;
343
344 case M_JFIF:
345 // Regular jpegs always have this tag, exif images have the exif
346 // marker instead, althogh ACDsee will write images with both markers.
347 // this program will re-create this marker on absence of exif marker.
348 // hence no need to keep the copy from the file.
349 free(Sections[--SectionsRead].Data);
350 break;
351
352 case M_EXIF:
353 // Seen files from some 'U-lead' software with Vivitar scanner
354 // that uses marker 31 for non exif stuff. Thus make sure
355 // it says 'Exif' in the section before treating it as exif.
356 if ((ReadMode & READ_EXIF) && memcmp(Data+2, "Exif", 4) == 0){
357 process_EXIF((uchar *)Data, itemlen);
358 }else{
359 // Discard this section.
360 free(Sections[--SectionsRead].Data);
361 }
362 break;
363
364 case M_SOF0:
365 case M_SOF1:
366 case M_SOF2:
367 case M_SOF3:
368 case M_SOF5:
369 case M_SOF6:
370 case M_SOF7:
371 case M_SOF9:
372 case M_SOF10:
373 case M_SOF11:
374 case M_SOF13:
375 case M_SOF14:
376 case M_SOF15:
377 process_SOFn(Data, marker);
378 default:
379 break;
380 break;
381 }
382 }
383 return true;
384}
385
386
387//--------------------------------------------------------------------------
388// Discard read data.
389//--------------------------------------------------------------------------
390void ExifData::DiscardData(void)
391{
392 for (int a=0; a < SectionsRead; a++)
393 free(Sections[a].Data);
394 SectionsRead = 0;
395}
396
397//--------------------------------------------------------------------------
398// Convert a 16 bit unsigned value from file's native byte order
399//--------------------------------------------------------------------------
400int ExifData::Get16u(void * Short)
401{
402 if (MotorolaOrder){
403 return (((uchar *)Short)[0] << 8) | ((uchar *)Short)[1];
404 }else{
405 return (((uchar *)Short)[1] << 8) | ((uchar *)Short)[0];
406 }
407}
408
409//--------------------------------------------------------------------------
410// Convert a 32 bit signed value from file's native byte order
411//--------------------------------------------------------------------------
412int ExifData::Get32s(void * Long)
413{
414 if (MotorolaOrder){
415 return ((( char *)Long)[0] << 24) | (((uchar *)Long)[1] << 16)
416 | (((uchar *)Long)[2] << 8 ) | (((uchar *)Long)[3] << 0 );
417 }else{
418 return ((( char *)Long)[3] << 24) | (((uchar *)Long)[2] << 16)
419 | (((uchar *)Long)[1] << 8 ) | (((uchar *)Long)[0] << 0 );
420 }
421}
422
423//--------------------------------------------------------------------------
424// Convert a 32 bit unsigned value from file's native byte order
425//--------------------------------------------------------------------------
426unsigned ExifData::Get32u(void * Long)
427{
428 return (unsigned)Get32s(Long) & 0xffffffff;
429}
430
431//--------------------------------------------------------------------------
432// Evaluate number, be it int, rational, or float from directory.
433//--------------------------------------------------------------------------
434double ExifData::ConvertAnyFormat(void * ValuePtr, int Format)
435{
436 double Value;
437 Value = 0;
438
439 switch(Format){
440 case FMT_SBYTE: Value = *(signed char *)ValuePtr; break;
441 case FMT_BYTE: Value = *(uchar *)ValuePtr; break;
442
443 case FMT_USHORT: Value = Get16u(ValuePtr); break;
444
445 case FMT_ULONG: Value = Get32u(ValuePtr); break;
446
447 case FMT_URATIONAL:
448 case FMT_SRATIONAL:
449 {
450 int Num,Den;
451 Num = Get32s(ValuePtr);
452 Den = Get32s(4+(char *)ValuePtr);
453 if (Den == 0){
454 Value = 0;
455 }else{
456 Value = (double)Num/Den;
457 }
458 break;
459 }
460
461 case FMT_SSHORT: Value = (signed short)Get16u(ValuePtr); break;
462 case FMT_SLONG: Value = Get32s(ValuePtr); break;
463
464 // Not sure if this is correct (never seen float used in Exif format)
465 case FMT_SINGLE: Value = (double)*(float *)ValuePtr; break;
466 case FMT_DOUBLE: Value = *(double *)ValuePtr; break;
467 }
468 return Value;
469}
470
471//--------------------------------------------------------------------------
472// Process one of the nested EXIF directories.
473//--------------------------------------------------------------------------
474void ExifData::ProcessExifDir(unsigned char * DirStart, unsigned char * OffsetBase, unsigned ExifLength)
475{
476 int de;
477 int a;
478 int NumDirEntries;
479 unsigned ThumbnailOffset = 0;
480 unsigned ThumbnailSize = 0;
481
482 NumDirEntries = Get16u(DirStart);
483 #define DIR_ENTRY_ADDR(Start, Entry) (Start+2+12*(Entry))
484
485 {
486 unsigned char * DirEnd;
487 DirEnd = DIR_ENTRY_ADDR(DirStart, NumDirEntries);
488 if (DirEnd+4 > (OffsetBase+ExifLength)){
489 if (DirEnd+2 == OffsetBase+ExifLength || DirEnd == OffsetBase+ExifLength){
490 // Version 1.3 of jhead would truncate a bit too much.
491 // This also caught later on as well.
492 }else{
493 // Note: Files that had thumbnails trimmed with jhead 1.3 or earlier
494 // might trigger this.
495 return;
496 }
497 }
498 if (DirEnd < LastExifRefd) LastExifRefd = DirEnd;
499 }
500
501 for (de=0;de<NumDirEntries;de++){
502 int Tag, Format, Components;
503 unsigned char * ValuePtr;
504 int ByteCount;
505 char * DirEntry;
506 DirEntry = (char *)DIR_ENTRY_ADDR(DirStart, de);
507
508 Tag = Get16u(DirEntry);
509 Format = Get16u(DirEntry+2);
510 Components = Get32u(DirEntry+4);
511
512 if ((Format-1) >= NUM_FORMATS) {
513 // (-1) catches illegal zero case as unsigned underflows to positive large.
514 return;
515 }
516
517 ByteCount = Components * BytesPerFormat[Format];
518
519 if (ByteCount > 4){
520 unsigned OffsetVal;
521 OffsetVal = Get32u(DirEntry+8);
522 // If its bigger than 4 bytes, the dir entry contains an offset.
523 if (OffsetVal+ByteCount > ExifLength){
524 // Bogus pointer offset and / or bytecount value
525 //printf("Offset %d bytes %d ExifLen %d\n",OffsetVal, ByteCount, ExifLength);
526
527 return;
528 }
529 ValuePtr = OffsetBase+OffsetVal;
530 }else{
531 // 4 bytes or less and value is in the dir entry itself
532 ValuePtr = (unsigned char *)DirEntry+8;
533 }
534
535 if (LastExifRefd < ValuePtr+ByteCount){
536 // Keep track of last byte in the exif header that was actually referenced.
537 // That way, we know where the discardable thumbnail data begins.
538 LastExifRefd = ValuePtr+ByteCount;
539 }
540
541 // Extract useful components of tag
542 switch(Tag){
543
544 case TAG_MAKE:
545 ExifData::CameraMake = QString((char*)ValuePtr);
546 break;
547
548 case TAG_MODEL:
549 ExifData::CameraModel = QString((char*)ValuePtr);
550 break;
551
552 case TAG_ORIENTATION:
553 Orientation = (int)ConvertAnyFormat(ValuePtr, Format);
554 break;
555
556 case TAG_DATETIME_ORIGINAL:
557 DateTime = QString((char*)ValuePtr);
558 break;
559
560 case TAG_USERCOMMENT:
561 // Olympus has this padded with trailing spaces. Remove these first.
562 for (a=ByteCount;;){
563 a--;
564 if ((ValuePtr)[a] == ' '){
565 (ValuePtr)[a] = '\0';
566 }else{
567 break;
568 }
569 if (a == 0) break;
570 }
571
572 // Copy the comment
573 if (memcmp(ValuePtr, "ASCII",5) == 0){
574 for (a=5;a<10;a++){
575 int c;
576 c = (ValuePtr)[a];
577 if (c != '\0' && c != ' '){
578 //strncpy(ImageInfo.Comments, (const char*)(a+ValuePtr), 199);
579 UserComment.sprintf("%s", (const char*)(a+ValuePtr));
580 break;
581 }
582 }
583 }else{
584 //strncpy(ImageInfo.Comments, (const char*)ValuePtr, 199);
585 UserComment.sprintf("%s", (const char*)ValuePtr);
586 }
587 break;
588
589 case TAG_FNUMBER:
590 // Simplest way of expressing aperture, so I trust it the most.
591 // (overwrite previously computd value if there is one)
592 ExifData::ApertureFNumber = (float)ConvertAnyFormat(ValuePtr, Format);
593 break;
594
595 case TAG_APERTURE:
596 case TAG_MAXAPERTURE:
597 // More relevant info always comes earlier, so only use this field if we don't
598 // have appropriate aperture information yet.
599 if (ExifData::ApertureFNumber == 0){
600 ExifData::ApertureFNumber
601 = (float)exp(ConvertAnyFormat(ValuePtr, Format)*log(2)*0.5);
602 }
603 break;
604
605 case TAG_FOCALLENGTH:
606 // Nice digital cameras actually save the focal length as a function
607 // of how farthey are zoomed in.
608 ExifData::FocalLength = (float)ConvertAnyFormat(ValuePtr, Format);
609 break;
610
611 case TAG_SUBJECT_DISTANCE:
612 // Inidcates the distacne the autofocus camera is focused to.
613 // Tends to be less accurate as distance increases.
614 ExifData::Distance = (float)ConvertAnyFormat(ValuePtr, Format);
615 break;
616
617 case TAG_EXPOSURETIME:
618 // Simplest way of expressing exposure time, so I trust it most.
619 // (overwrite previously computd value if there is one)
620 ExifData::ExposureTime = (float)ConvertAnyFormat(ValuePtr, Format);
621 break;
622
623 case TAG_SHUTTERSPEED:
624 // More complicated way of expressing exposure time, so only use
625 // this value if we don't already have it from somewhere else.
626 if (ExifData::ExposureTime == 0){
627 ExifData::ExposureTime
628 = (float)(1/exp(ConvertAnyFormat(ValuePtr, Format)*log(2)));
629 }
630 break;
631
632 case TAG_FLASH:
633 if (ConvertAnyFormat(ValuePtr, Format)){
634 ExifData::FlashUsed = 1;
635 }
636 break;
637
638 case TAG_EXIF_IMAGELENGTH:
639 ExifImageLength = (int)ConvertAnyFormat(ValuePtr, Format);
640 break;
641
642 case TAG_EXIF_IMAGEWIDTH:
643 ExifImageWidth = (int)ConvertAnyFormat(ValuePtr, Format);
644 break;
645
646 case TAG_FOCALPLANEXRES:
647 FocalplaneXRes = ConvertAnyFormat(ValuePtr, Format);
648 break;
649
650 case TAG_FOCALPLANEUNITS:
651 switch((int)ConvertAnyFormat(ValuePtr, Format)){
652 case 1: FocalplaneUnits = 25.4; break; // inch
653 case 2:
654 // According to the information I was using, 2 means meters.
655 // But looking at the Cannon powershot's files, inches is the only
656 // sensible value.
657 FocalplaneUnits = 25.4;
658 break;
659
660 case 3: FocalplaneUnits = 10; break; // centimeter
661 case 4: FocalplaneUnits = 1; break; // milimeter
662 case 5: FocalplaneUnits = .001; break; // micrometer
663 }
664 break;
665
666 // Remaining cases contributed by: Volker C. Schoech (schoech@gmx.de)
667
668 case TAG_EXPOSURE_BIAS:
669 ExifData::ExposureBias = (float)ConvertAnyFormat(ValuePtr, Format);
670 break;
671
672 case TAG_WHITEBALANCE:
673 ExifData::Whitebalance = (int)ConvertAnyFormat(ValuePtr, Format);
674 break;
675
676 case TAG_METERING_MODE:
677 ExifData::MeteringMode = (int)ConvertAnyFormat(ValuePtr, Format);
678 break;
679
680 case TAG_EXPOSURE_PROGRAM:
681 ExifData::ExposureProgram = (int)ConvertAnyFormat(ValuePtr, Format);
682 break;
683
684 case TAG_ISO_EQUIVALENT:
685 ExifData::ISOequivalent = (int)ConvertAnyFormat(ValuePtr, Format);
686 if ( ExifData::ISOequivalent < 50 ) ExifData::ISOequivalent *= 200;
687 break;
688
689 case TAG_COMPRESSION_LEVEL:
690 ExifData::CompressionLevel = (int)ConvertAnyFormat(ValuePtr, Format);
691 break;
692
693 case TAG_THUMBNAIL_OFFSET:
694 ThumbnailOffset = (unsigned)ConvertAnyFormat(ValuePtr, Format);
695 break;
696
697 case TAG_THUMBNAIL_LENGTH:
698 ThumbnailSize = (unsigned)ConvertAnyFormat(ValuePtr, Format);
699 break;
700
701 }
702
703 if (Tag == TAG_EXIF_OFFSET || Tag == TAG_INTEROP_OFFSET){
704 unsigned char * SubdirStart;
705 SubdirStart = OffsetBase + Get32u(ValuePtr);
706 if (SubdirStart < OffsetBase || SubdirStart > OffsetBase+ExifLength){
707 return;
708 }
709 ProcessExifDir(SubdirStart, OffsetBase, ExifLength);
710 continue;
711 }
712 }
713
714 {
715 // In addition to linking to subdirectories via exif tags,
716 // there's also a potential link to another directory at the end of each
717 // directory. this has got to be the result of a comitee!
718 unsigned char * SubdirStart;
719 unsigned Offset;
720
721 if (DIR_ENTRY_ADDR(DirStart, NumDirEntries) + 4 <= OffsetBase+ExifLength){
722 Offset = Get32u(DIR_ENTRY_ADDR(DirStart, NumDirEntries));
723 // There is at least one jpeg from an HP camera having an Offset of almost MAXUINT.
724 // Adding OffsetBase to it produces an overflow, so compare with ExifLength here.
725 // See http://bugs.kde.org/show_bug.cgi?id=54542
726 if (Offset && Offset < ExifLength){
727 SubdirStart = OffsetBase + Offset;
728 if (SubdirStart > OffsetBase+ExifLength){
729 if (SubdirStart < OffsetBase+ExifLength+20){
730 // Jhead 1.3 or earlier would crop the whole directory!
731 // As Jhead produces this form of format incorrectness,
732 // I'll just let it pass silently
733 owarn << "Thumbnail removed with Jhead 1.3 or earlier" << oendl;
734 }else{
735 return;
736 }
737 }else{
738 if (SubdirStart <= OffsetBase+ExifLength){
739 ProcessExifDir(SubdirStart, OffsetBase, ExifLength);
740 }
741 }
742 }
743 }else{
744 // The exif header ends before the last next directory pointer.
745 }
746 }
747
748 if (ThumbnailSize && ThumbnailOffset){
749 if (ThumbnailSize + ThumbnailOffset <= ExifLength){
750 // The thumbnail pointer appears to be valid. Store it.
751 Thumbnail.loadFromData(OffsetBase + ThumbnailOffset, ThumbnailSize, "JPEG");
752 }
753 }
754}
755
756//--------------------------------------------------------------------------
757// Process a COM marker. We want to leave the bytes unchanged. The
758// progam that displays this text may decide to remove blanks, convert
759// newlines, or otherwise modify the text. In particular we want to be
760// safe for passing utf-8 text.
761//--------------------------------------------------------------------------
762void ExifData::process_COM (const uchar * Data, int length)
763{
764 QChar ch;
765 int a;
766
767 for (a=2;a<length;a++){
768 ch = Data[a];
769 if (ch == '\000') continue; // Remove nulls
770 Comment.append(ch);
771 }
772}
773
774
775//--------------------------------------------------------------------------
776// Process a SOFn marker. This is useful for the image dimensions
777//--------------------------------------------------------------------------
778void ExifData::process_SOFn (const uchar * Data, int marker)
779{
780 int data_precision, num_components;
781
782 data_precision = Data[2];
783 ExifData::Height = Get16m(Data+3);
784 ExifData::Width = Get16m(Data+5);
785 num_components = Data[7];
786
787 if (num_components == 3){
788 ExifData::IsColor = 1;
789 }else{
790 ExifData::IsColor = 0;
791 }
792
793 ExifData::Process = marker;
794
795}
796
797//--------------------------------------------------------------------------
798// Get 16 bits motorola order (always) for jpeg header stuff.
799//--------------------------------------------------------------------------
800int ExifData::Get16m(const void * Short)
801{
802 return (((uchar *)Short)[0] << 8) | ((uchar *)Short)[1];
803}
804
805
806//--------------------------------------------------------------------------
807// Process a EXIF marker
808// Describes all the drivel that most digital cameras include...
809//--------------------------------------------------------------------------
810void ExifData::process_EXIF(unsigned char * CharBuf, unsigned int length)
811{
812 ExifData::FlashUsed = 0; // If it s from a digicam, and it used flash, it says so.
813
814 FocalplaneXRes = 0;
815 FocalplaneUnits = 0;
816 ExifImageWidth = 0;
817 ExifImageLength = 0;
818
819 { // Check the EXIF header component
820 static const uchar ExifHeader[] = "Exif\0\0";
821 if (memcmp(CharBuf+2, ExifHeader,6)){
822 return;
823 }
824 }
825
826 if (memcmp(CharBuf+8,"II",2) == 0){
827 // printf("Exif section in Intel order\n");
828 MotorolaOrder = 0;
829 }else{
830 if (memcmp(CharBuf+8,"MM",2) == 0){
831 // printf("Exif section in Motorola order\n");
832 MotorolaOrder = 1;
833 }else{
834 return;
835 }
836 }
837
838 // Check the next two values for correctness.
839 if (Get16u(CharBuf+10) != 0x2a
840 || Get32u(CharBuf+12) != 0x08){
841 return;
842 }
843
844 LastExifRefd = CharBuf;
845
846 // First directory starts 16 bytes in. Offsets start at 8 bytes in.
847 ProcessExifDir(CharBuf+16, CharBuf+8, length-6);
848
849 // This is how far the interesting (non thumbnail) part of the exif went.
850 ExifSettingsLength = LastExifRefd - CharBuf;
851
852 // Compute the CCD width, in milimeters.
853 if (FocalplaneXRes != 0){
854 ExifData::CCDWidth = (float)(ExifImageWidth * FocalplaneUnits / FocalplaneXRes);
855 }
856}
857
858//--------------------------------------------------------------------------
859// Convert exif time to Unix time structure
860//--------------------------------------------------------------------------
861int ExifData::Exif2tm(struct tm * timeptr, char * ExifTime)
862{
863 int a;
864
865 timeptr->tm_wday = -1;
866
867 // Check for format: YYYY:MM:DD HH:MM:SS format.
868 a = sscanf(ExifTime, "%d:%d:%d %d:%d:%d",
869 &timeptr->tm_year, &timeptr->tm_mon, &timeptr->tm_mday,
870 &timeptr->tm_hour, &timeptr->tm_min, &timeptr->tm_sec);
871
872 if (a == 6){
873 timeptr->tm_isdst = -1;
874 timeptr->tm_mon -= 1; // Adjust for unix zero-based months
875 timeptr->tm_year -= 1900; // Adjust for year starting at 1900
876 return true; // worked.
877 }
878
879 return false; // Wasn't in Exif date format.
880}
881
882//--------------------------------------------------------------------------
883// Contructor for initialising
884//--------------------------------------------------------------------------
885ExifData::ExifData()
886{
887 ExifData::Whitebalance = -1;
888 ExifData::MeteringMode = -1;
889 ExifData::FlashUsed = -1;
890 Orientation = 0;
891 Height = 0;
892 Width = 0;
893 IsColor = 0;
894 Process = 0;
895 FocalLength = 0;
896 ExposureTime = 0;
897 ApertureFNumber = 0;
898 Distance = 0;
899 CCDWidth = 0;
900 ExposureBias = 0;
901 ExposureProgram = 0;
902 ISOequivalent = 0;
903 CompressionLevel = 0;
904}
905
906//--------------------------------------------------------------------------
907// process a EXIF jpeg file
908//--------------------------------------------------------------------------
909bool ExifData::scan(const QString & path)
910{
911 int ret;
912
913 QFile f(path);
914 f.open(IO_ReadOnly);
915
916 // Scan the JPEG headers.
917 ret = ReadJpegSections(f, READ_EXIF);
918
919 if (ret == false){
920 owarn << "Not JPEG file!" << oendl;
921 DiscardData();
922 f.close();
923 return false;
924 }
925 f.close();
926 DiscardData();
927
928 //now make the strings clean,
929 // for exmaple my Casio is a "QV-4000 "
930 CameraMake = CameraMake.stripWhiteSpace();
931 CameraModel = CameraModel.stripWhiteSpace();
932 UserComment = UserComment.stripWhiteSpace();
933 Comment = Comment.stripWhiteSpace();
934 return true;
935}
936
937//--------------------------------------------------------------------------
938// Does the embedded thumbnail match the jpeg image?
939//--------------------------------------------------------------------------
940#ifndef JPEG_TOL
941#define JPEG_TOL 0.02
942#endif
943bool ExifData::isThumbnailSane() {
944 if (Thumbnail.isNull()) return false;
945
946 // check whether thumbnail dimensions match the image
947 // not foolproof, but catches some altered images (jpegtran -rotate)
948 if (ExifImageLength != 0 && ExifImageLength != Height) return false;
949 if (ExifImageWidth != 0 && ExifImageWidth != Width) return false;
950 if (Thumbnail.width() == 0 || Thumbnail.height() == 0) return false;
951 if (Height == 0 || Width == 0) return false;
952 double d = (double)Height/Width*Thumbnail.width()/Thumbnail.height();
953 return (1-JPEG_TOL < d) && (d < 1+JPEG_TOL);
954}
955
956
957
958static QImage flip_image( const QImage& img );
959static QImage rotate_90( const QImage& img );
960static QImage rotate_180( const QImage& );
961static QImage rotate_270( const QImage& );
962
963//--------------------------------------------------------------------------
964// return a thumbnail that respects the orientation flag
965// only if it seems sane
966//--------------------------------------------------------------------------
967QImage ExifData::getThumbnail() {
968 if (!isThumbnailSane()) return NULL;
969 if (!Orientation || Orientation == 1) return Thumbnail;
970
971 // now fix orientation
972
973 QImage dest = Thumbnail;
974 switch (Orientation) { // notice intentional fallthroughs
975 case 2: dest = flip_image( dest ); break;
976 case 4: dest = flip_image( dest );
977 case 3: dest =rotate_180( dest ); break;
978 case 5: dest = flip_image( dest );
979 case 6: dest = rotate_90( dest ); break;
980 case 7: dest = flip_image( dest );
981 case 8: dest = rotate_270( dest ); break;
982 default: break; // should never happen
983 }
984 return dest;
985}
986
987
988/*
989 *
990 */
991static QImage flip_image( const QImage& img ) {
992 return img.mirror( TRUE, FALSE );
993}
994
995
996static QImage dest;
997static int x, y;
998static unsigned int *srcData, *destData; // we're not threaded anyway
999static unsigned char *srcData8, *destData8; // 8 bit is char
1000static unsigned int *srcTable, *destTable; // destination table
1001
1002
1003static QImage rotate_90_8( const QImage &img ) {
1004 dest.create(img.height(), img.width(), img.depth());
1005 dest.setNumColors(img.numColors());
1006 srcTable = (unsigned int *)img.colorTable();
1007 destTable = (unsigned int *)dest.colorTable();
1008 for ( x=0; x < img.numColors(); ++x )
1009 destTable[x] = srcTable[x];
1010 for ( y=0; y < img.height(); ++y ){
1011 srcData8 = (unsigned char *)img.scanLine(y);
1012 for ( x=0; x < img.width(); ++x ){
1013 destData8 = (unsigned char *)dest.scanLine(x);
1014 destData8[img.height()-y-1] = srcData8[x];
1015 }
1016 }
1017 return dest;
1018}
1019
1020static QImage rotate_90_all( const QImage& img ) {
1021 dest.create(img.height(), img.width(), img.depth());
1022 for ( y=0; y < img.height(); ++y ) {
1023 srcData = (unsigned int *)img.scanLine(y);
1024 for ( x=0; x < img.width(); ++x ) {
1025 destData = (unsigned int *)dest.scanLine(x);
1026 destData[img.height()-y-1] = srcData[x];
1027 }
1028 }
1029
1030 return dest;
1031}
1032
1033
1034static QImage rotate_90( const QImage & img ) {
1035 if ( img.depth() > 8)
1036 return rotate_90_all( img );
1037 else
1038 return rotate_90_8( img );
1039}
1040
1041static QImage rotate_180_all( const QImage& img ) {
1042 dest.create(img.width(), img.height(), img.depth());
1043 for ( y=0; y < img.height(); ++y ){
1044 srcData = (unsigned int *)img.scanLine(y);
1045 destData = (unsigned int *)dest.scanLine(img.height()-y-1);
1046 for ( x=0; x < img.width(); ++x )
1047 destData[img.width()-x-1] = srcData[x];
1048 }
1049 return dest;
1050}
1051
1052static QImage rotate_180_8( const QImage& img ) {
1053 dest.create(img.width(), img.height(), img.depth());
1054 dest.setNumColors(img.numColors());
1055 srcTable = (unsigned int *)img.colorTable();
1056 destTable = (unsigned int *)dest.colorTable();
1057 for ( x=0; x < img.numColors(); ++x )
1058 destTable[x] = srcTable[x];
1059 for ( y=0; y < img.height(); ++y ){
1060 srcData8 = (unsigned char *)img.scanLine(y);
1061 destData8 = (unsigned char *)dest.scanLine(img.height()-y-1);
1062 for ( x=0; x < img.width(); ++x )
1063 destData8[img.width()-x-1] = srcData8[x];
1064 }
1065 return dest;
1066}
1067
1068static QImage rotate_180( const QImage& img ) {
1069 if ( img.depth() > 8 )
1070 return rotate_180_all( img );
1071 else
1072 return rotate_180_8( img );
1073}
1074
1075
1076static QImage rotate_270_8( const QImage& img ) {
1077 dest.create(img.height(), img.width(), img.depth());
1078 dest.setNumColors(img.numColors());
1079 srcTable = (unsigned int *)img.colorTable();
1080 destTable = (unsigned int *)dest.colorTable();
1081 for ( x=0; x < img.numColors(); ++x )
1082 destTable[x] = srcTable[x];
1083 for ( y=0; y < img.height(); ++y ){
1084 srcData8 = (unsigned char *)img.scanLine(y);
1085 for ( x=0; x < img.width(); ++x ){
1086 destData8 = (unsigned char *)dest.scanLine(img.width()-x-1);
1087 destData8[y] = srcData8[x];
1088 }
1089 }
1090
1091 return dest;
1092}
1093
1094static QImage rotate_270_all( const QImage& img ) {
1095 dest.create(img.height(), img.width(), img.depth());
1096 for ( y=0; y < img.height(); ++y ){
1097 srcData = (unsigned int *)img.scanLine(y);
1098 for ( x=0; x < img.width(); ++x ){
1099 destData = (unsigned int *)dest.scanLine(img.width()-x-1);
1100 destData[y] = srcData[x];
1101 }
1102 }
1103 return dest;
1104}
1105
1106static QImage rotate_270( const QImage& img ) {
1107 if ( img.depth() > 8 )
1108 return rotate_270_all( img );
1109 else
1110 return rotate_270_8( img );
1111}
1112
1113
1114static QString color_mode_to_string( bool b ) {
1115 return b ? QObject::tr( "Colormode: Color\n" ) : QObject::tr( "Colormode: Black and white\n" );
1116}
1117
1118static QString compression_to_string( int level ) {
1119 QString str;
1120 switch( level ) {
1121 case 1:
1122 str = QObject::tr( "Basic" );
1123 break;
1124 case 2:
1125 str = QObject::tr( "Normal" );
1126 break;
1127 case 4:
1128 str = QObject::tr( "Fine" );
1129 break;
1130 default:
1131 str = QObject::tr( "Unknown" );
1132
1133 }
1134 return QObject::tr("Quality: %1\n").arg(str);
1135}
1136
1137
1138static QDateTime parseDateTime( const QString& string ) 16static QDateTime parseDateTime( const QString& string )
1139{ 17{
1140 QDateTime dt; 18 QDateTime dt;
@@ -1176,122 +54,6 @@ static QDateTime parseDateTime( const QString& string )
1176 return dt; 54 return dt;
1177} 55}
1178 56
1179static QString white_balance_string( int i ) {
1180 QString balance;
1181 switch ( i ) {
1182 case 0:
1183 balance = QObject::tr( "Unknown" );
1184 break;
1185 case 1:
1186 balance = QObject::tr( "Daylight" );
1187 break;
1188 case 2:
1189 balance = QObject::tr( "Fluorescent" );
1190 break;
1191 case 3:
1192 balance = QObject::tr( "Tungsten" );
1193 break;
1194 case 17:
1195 balance = QObject::tr( "Standard light A" );
1196 break;
1197 case 18:
1198 balance = QObject::tr( "Standard light B" );
1199 break;
1200 case 19:
1201 balance = QObject::tr( "Standard light C" );
1202 break;
1203 case 20:
1204 balance = QObject::tr( "D55" );
1205 break;
1206 case 21:
1207 balance = QObject::tr( "D65" );
1208 break;
1209 case 22:
1210 balance = QObject::tr( "D75" );
1211 break;
1212 case 255:
1213 balance = QObject::tr( "Other" );
1214 break;
1215 default:
1216 balance = QObject::tr( "Unknown" );
1217 }
1218 return QObject::tr( "White Balance: %1\n" ).arg( balance );
1219
1220}
1221
1222
1223static QString metering_mode( int i) {
1224 QString meter;
1225 switch( i ) {
1226 case 0:
1227 meter = QObject::tr( "Unknown" );
1228 break;
1229 case 1:
1230 meter = QObject::tr( "Average" );
1231 break;
1232 case 2:
1233 meter = QObject::tr( "Center weighted average" );
1234 break;
1235 case 3:
1236 meter = QObject::tr( "Spot" );
1237 break;
1238 case 4:
1239 meter = QObject::tr( "MultiSpot" );
1240 break;
1241 case 5:
1242 meter = QObject::tr( "Pattern" );
1243 break;
1244 case 6:
1245 meter = QObject::tr( "Partial" );
1246 break;
1247 case 255:
1248 meter = QObject::tr( "Other" );
1249 break;
1250 default:
1251 meter = QObject::tr( "Unknown" );
1252 }
1253
1254 return QObject::tr( "Metering Mode: %1\n" ).arg( meter );
1255}
1256
1257
1258static QString exposure_program( int i ) {
1259 QString exp;
1260 switch( i ) {
1261 case 0:
1262 exp = QObject::tr( "Not defined" );
1263 break;
1264 case 1:
1265 exp = QObject::tr( "Manual" );
1266 break;
1267 case 2:
1268 exp = QObject::tr( "Normal progam" );
1269 break;
1270 case 3:
1271 exp = QObject::tr( "Aperture priority" );
1272 break;
1273 case 4:
1274 exp = QObject::tr( "Shutter priority" );
1275 break;
1276 case 5:
1277 exp = QObject::tr( "Creative progam\n(biased toward fast shutter speed" );
1278 break;
1279 case 6:
1280 exp = QObject::tr( "Action progam\n(biased toward fast shutter speed)" );
1281 break;
1282 case 7:
1283 exp = QObject::tr( "Portrait mode\n(for closeup photos with the background out of focus)" );
1284 break;
1285 case 8:
1286 exp = QObject::tr( "Landscape mode\n(for landscape photos with the background in focus)" );
1287 break;
1288 default:
1289 exp = QObject::tr( "Unknown" );
1290 }
1291
1292 return QObject::tr( "Exposure Program: %1\n" ).arg( exp );
1293}
1294
1295JpegSlave::JpegSlave() 57JpegSlave::JpegSlave()
1296 : SlaveInterface( QStringList::split( " ", "jpeg jpg" ) ) 58 : SlaveInterface( QStringList::split( " ", "jpeg jpg" ) )
1297{} 59{}
@@ -1313,9 +75,9 @@ QString JpegSlave::iconViewName( const QString& path) {
1313 tag += QObject::tr( "Dimensions: %1x%2\n" ).arg(ImageInfo.getWidth()) 75 tag += QObject::tr( "Dimensions: %1x%2\n" ).arg(ImageInfo.getWidth())
1314 .arg(ImageInfo.getHeight() ); 76 .arg(ImageInfo.getHeight() );
1315 77
1316 tag += color_mode_to_string( ImageInfo.getIsColor() ); 78 tag += ExifData::color_mode_to_string( ImageInfo.getIsColor() );
1317 79
1318 tag += compression_to_string( ImageInfo.getCompressionLevel() ); 80 tag += ExifData::compression_to_string( ImageInfo.getCompressionLevel() );
1319 81
1320 return tag; 82 return tag;
1321} 83}
@@ -1346,9 +108,9 @@ QString JpegSlave::fullImageInfo( const QString& path) {
1346 tag += QObject::tr( "Dimensions: %1x%2\n" ).arg(ImageInfo.getWidth()) 108 tag += QObject::tr( "Dimensions: %1x%2\n" ).arg(ImageInfo.getWidth())
1347 .arg(ImageInfo.getHeight() ); 109 .arg(ImageInfo.getHeight() );
1348 110
1349 tag += color_mode_to_string( ImageInfo.getIsColor() ); 111 tag += ExifData::color_mode_to_string( ImageInfo.getIsColor() );
1350 112
1351 tag += compression_to_string( ImageInfo.getCompressionLevel() ); 113 tag += ExifData::compression_to_string( ImageInfo.getCompressionLevel() );
1352 if ( ImageInfo.getOrientation() ) 114 if ( ImageInfo.getOrientation() )
1353 tag += QObject::tr( "Orientation: %1\n" ).arg(ImageInfo.getOrientation() ); 115 tag += QObject::tr( "Orientation: %1\n" ).arg(ImageInfo.getOrientation() );
1354 116
@@ -1391,14 +153,14 @@ QString JpegSlave::fullImageInfo( const QString& path) {
1391 } 153 }
1392 154
1393 if ( ImageInfo.getWhitebalance() != -1 ) 155 if ( ImageInfo.getWhitebalance() != -1 )
1394 tag += white_balance_string( ImageInfo.getWhitebalance() ); 156 tag += ExifData::white_balance_string( ImageInfo.getWhitebalance() );
1395 157
1396 158
1397 if( ImageInfo.getMeteringMode() != -1 ) 159 if( ImageInfo.getMeteringMode() != -1 )
1398 tag += metering_mode( ImageInfo.getMeteringMode() ); 160 tag += ExifData::metering_mode( ImageInfo.getMeteringMode() );
1399 161
1400 if ( ImageInfo.getExposureProgram() ) 162 if ( ImageInfo.getExposureProgram() )
1401 tag += exposure_program( ImageInfo.getExposureProgram() ); 163 tag += ExifData::exposure_program( ImageInfo.getExposureProgram() );
1402 if ( ImageInfo.getISOequivalent() ) 164 if ( ImageInfo.getISOequivalent() )
1403 tag += QObject::tr( "ISO equivalent: %1\n" ).arg( QString().sprintf("%2d", ImageInfo.getISOequivalent() ) ); 165 tag += QObject::tr( "ISO equivalent: %1\n" ).arg( QString().sprintf("%2d", ImageInfo.getISOequivalent() ) );
1404 166
diff --git a/noncore/graphics/opie-eye/slave/slave.pro b/noncore/graphics/opie-eye/slave/slave.pro
index ab080ad..51fbd1a 100644
--- a/noncore/graphics/opie-eye/slave/slave.pro
+++ b/noncore/graphics/opie-eye/slave/slave.pro
@@ -15,6 +15,6 @@ SOURCES = main.cpp gif_slave.cpp slavereciever.cpp \
15INCLUDEPATH += $(OPIEDIR)/include ../ 15INCLUDEPATH += $(OPIEDIR)/include ../
16DEPENDSPATH += $(OPIEDIR)/include 16DEPENDSPATH += $(OPIEDIR)/include
17 17
18LIBS += -lqpe -lopiecore2 18LIBS += -lqpe -lopiecore2 -lopiemm2
19 19
20include ( $(OPIEDIR)/include.pro ) 20include ( $(OPIEDIR)/include.pro )