source: liacs/MIR2010/SourceCode/cximage/ximaenc.cpp@ 193

Last change on this file since 193 was 95, checked in by Rick van der Zwet, 15 years ago

Bad boy, improper move of directory
File size: 27.8 KB
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[95]1// xImaCodec.cpp : Encode Decode functions
2/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it
3 * CxImage version 6.0.0 02/Feb/2008
4 */
5
6#include "ximage.h"
7
8#if CXIMAGE_SUPPORT_JPG
9#include "ximajpg.h"
10#endif
11
12#if CXIMAGE_SUPPORT_GIF
13#include "ximagif.h"
14#endif
15
16#if CXIMAGE_SUPPORT_PNG
17#include "ximapng.h"
18#endif
19
20#if CXIMAGE_SUPPORT_MNG
21#include "ximamng.h"
22#endif
23
24#if CXIMAGE_SUPPORT_BMP
25#include "ximabmp.h"
26#endif
27
28#if CXIMAGE_SUPPORT_ICO
29#include "ximaico.h"
30#endif
31
32#if CXIMAGE_SUPPORT_TIF
33#include "ximatif.h"
34#endif
35
36#if CXIMAGE_SUPPORT_TGA
37#include "ximatga.h"
38#endif
39
40#if CXIMAGE_SUPPORT_PCX
41#include "ximapcx.h"
42#endif
43
44#if CXIMAGE_SUPPORT_WBMP
45#include "ximawbmp.h"
46#endif
47
48#if CXIMAGE_SUPPORT_WMF
49#include "ximawmf.h" // <vho> - WMF/EMF support
50#endif
51
52#if CXIMAGE_SUPPORT_JBG
53#include "ximajbg.h"
54#endif
55
56#if CXIMAGE_SUPPORT_JASPER
57#include "ximajas.h"
58#endif
59
60#if CXIMAGE_SUPPORT_SKA
61#include "ximaska.h"
62#endif
63
64#if CXIMAGE_SUPPORT_RAW
65#include "ximaraw.h"
66#endif
67
68////////////////////////////////////////////////////////////////////////////////
69#if CXIMAGE_SUPPORT_ENCODE
70////////////////////////////////////////////////////////////////////////////////
71bool CxImage::EncodeSafeCheck(CxFile *hFile)
72{
73 if (hFile==NULL) {
74 strcpy(info.szLastError,CXIMAGE_ERR_NOFILE);
75 return true;
76 }
77
78 if (pDib==NULL){
79 strcpy(info.szLastError,CXIMAGE_ERR_NOIMAGE);
80 return true;
81 }
82 return false;
83}
84////////////////////////////////////////////////////////////////////////////////
85//#ifdef WIN32
86//bool CxImage::Save(LPCWSTR filename, DWORD imagetype)
87//{
88// FILE* hFile; //file handle to write the image
89// if ((hFile=_wfopen(filename,L"wb"))==NULL) return false;
90// bool bOK = Encode(hFile,imagetype);
91// fclose(hFile);
92// return bOK;
93//}
94//#endif //WIN32
95////////////////////////////////////////////////////////////////////////////////
96// For UNICODE support: char -> TCHAR
97/**
98 * Saves to disk the image in a specific format.
99 * \param filename: file name
100 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
101 * \return true if everything is ok
102 */
103bool CxImage::Save(const TCHAR * filename, DWORD imagetype)
104{
105 FILE* hFile; //file handle to write the image
106
107#ifdef WIN32
108 if ((hFile=_tfopen(filename,_T("wb")))==NULL) return false; // For UNICODE support
109#else
110 if ((hFile=fopen(filename,"wb"))==NULL) return false;
111#endif
112
113 bool bOK = Encode(hFile,imagetype);
114 fclose(hFile);
115 return bOK;
116}
117////////////////////////////////////////////////////////////////////////////////
118/**
119 * Saves to disk the image in a specific format.
120 * \param hFile: file handle, open and enabled for writing.
121 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
122 * \return true if everything is ok
123 */
124bool CxImage::Encode(FILE *hFile, DWORD imagetype)
125{
126 CxIOFile file(hFile);
127 return Encode(&file,imagetype);
128}
129////////////////////////////////////////////////////////////////////////////////
130/**
131 * Saves to memory buffer the image in a specific format.
132 * \param buffer: output memory buffer pointer. Must be NULL,
133 * the function allocates and fill the memory,
134 * the application must free the buffer, see also FreeMemory().
135 * \param size: output memory buffer size.
136 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
137 * \return true if everything is ok
138 */
139bool CxImage::Encode(BYTE * &buffer, long &size, DWORD imagetype)
140{
141 if (buffer!=NULL){
142 strcpy(info.szLastError,"the buffer must be empty");
143 return false;
144 }
145 CxMemFile file;
146 file.Open();
147 if(Encode(&file,imagetype)){
148 buffer=file.GetBuffer();
149 size=file.Size();
150 return true;
151 }
152 return false;
153}
154////////////////////////////////////////////////////////////////////////////////
155/**
156 * Saves to disk the image in a specific format.
157 * \param hFile: file handle (CxMemFile or CxIOFile), with write access.
158 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
159 * \return true if everything is ok
160 * \sa ENUM_CXIMAGE_FORMATS
161 */
162bool CxImage::Encode(CxFile *hFile, DWORD imagetype)
163{
164
165#if CXIMAGE_SUPPORT_BMP
166
167 if (imagetype==CXIMAGE_FORMAT_BMP){
168 CxImageBMP newima;
169 newima.Ghost(this);
170 if (newima.Encode(hFile)){
171 return true;
172 } else {
173 strcpy(info.szLastError,newima.GetLastError());
174 return false;
175 }
176 }
177#endif
178#if CXIMAGE_SUPPORT_ICO
179 if (imagetype==CXIMAGE_FORMAT_ICO){
180 CxImageICO newima;
181 newima.Ghost(this);
182 if (newima.Encode(hFile)){
183 return true;
184 } else {
185 strcpy(info.szLastError,newima.GetLastError());
186 return false;
187 }
188 }
189#endif
190#if CXIMAGE_SUPPORT_TIF
191 if (imagetype==CXIMAGE_FORMAT_TIF){
192 CxImageTIF newima;
193 newima.Ghost(this);
194 if (newima.Encode(hFile)){
195 return true;
196 } else {
197 strcpy(info.szLastError,newima.GetLastError());
198 return false;
199 }
200 }
201#endif
202#if CXIMAGE_SUPPORT_JPG
203 if (imagetype==CXIMAGE_FORMAT_JPG){
204 CxImageJPG newima;
205 newima.Ghost(this);
206 if (newima.Encode(hFile)){
207 return true;
208 } else {
209 strcpy(info.szLastError,newima.GetLastError());
210 return false;
211 }
212 }
213#endif
214#if CXIMAGE_SUPPORT_GIF
215 if (imagetype==CXIMAGE_FORMAT_GIF){
216 CxImageGIF newima;
217 newima.Ghost(this);
218 if (newima.Encode(hFile)){
219 return true;
220 } else {
221 strcpy(info.szLastError,newima.GetLastError());
222 return false;
223 }
224 }
225#endif
226#if CXIMAGE_SUPPORT_PNG
227 if (imagetype==CXIMAGE_FORMAT_PNG){
228 CxImagePNG newima;
229 newima.Ghost(this);
230 if (newima.Encode(hFile)){
231 return true;
232 } else {
233 strcpy(info.szLastError,newima.GetLastError());
234 return false;
235 }
236 }
237#endif
238#if CXIMAGE_SUPPORT_MNG
239 if (imagetype==CXIMAGE_FORMAT_MNG){
240 CxImageMNG newima;
241 newima.Ghost(this);
242 if (newima.Encode(hFile)){
243 return true;
244 } else {
245 strcpy(info.szLastError,newima.GetLastError());
246 return false;
247 }
248 }
249#endif
250#if CXIMAGE_SUPPORT_TGA
251 if (imagetype==CXIMAGE_FORMAT_TGA){
252 CxImageTGA newima;
253 newima.Ghost(this);
254 if (newima.Encode(hFile)){
255 return true;
256 } else {
257 strcpy(info.szLastError,newima.GetLastError());
258 return false;
259 }
260 }
261#endif
262#if CXIMAGE_SUPPORT_PCX
263 if (imagetype==CXIMAGE_FORMAT_PCX){
264 CxImagePCX newima;
265 newima.Ghost(this);
266 if (newima.Encode(hFile)){
267 return true;
268 } else {
269 strcpy(info.szLastError,newima.GetLastError());
270 return false;
271 }
272 }
273#endif
274#if CXIMAGE_SUPPORT_WBMP
275 if (imagetype==CXIMAGE_FORMAT_WBMP){
276 CxImageWBMP newima;
277 newima.Ghost(this);
278 if (newima.Encode(hFile)){
279 return true;
280 } else {
281 strcpy(info.szLastError,newima.GetLastError());
282 return false;
283 }
284 }
285#endif
286#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS // <vho> - WMF/EMF support
287 if (imagetype==CXIMAGE_FORMAT_WMF){
288 CxImageWMF newima;
289 newima.Ghost(this);
290 if (newima.Encode(hFile)){
291 return true;
292 } else {
293 strcpy(info.szLastError,newima.GetLastError());
294 return false;
295 }
296 }
297#endif
298#if CXIMAGE_SUPPORT_JBG
299 if (imagetype==CXIMAGE_FORMAT_JBG){
300 CxImageJBG newima;
301 newima.Ghost(this);
302 if (newima.Encode(hFile)){
303 return true;
304 } else {
305 strcpy(info.szLastError,newima.GetLastError());
306 return false;
307 }
308 }
309#endif
310#if CXIMAGE_SUPPORT_JASPER
311 if (
312 #if CXIMAGE_SUPPORT_JP2
313 imagetype==CXIMAGE_FORMAT_JP2 ||
314 #endif
315 #if CXIMAGE_SUPPORT_JPC
316 imagetype==CXIMAGE_FORMAT_JPC ||
317 #endif
318 #if CXIMAGE_SUPPORT_PGX
319 imagetype==CXIMAGE_FORMAT_PGX ||
320 #endif
321 #if CXIMAGE_SUPPORT_PNM
322 imagetype==CXIMAGE_FORMAT_PNM ||
323 #endif
324 #if CXIMAGE_SUPPORT_RAS
325 imagetype==CXIMAGE_FORMAT_RAS ||
326 #endif
327 false ){
328 CxImageJAS newima;
329 newima.Ghost(this);
330 if (newima.Encode(hFile,imagetype)){
331 return true;
332 } else {
333 strcpy(info.szLastError,newima.GetLastError());
334 return false;
335 }
336 }
337#endif
338
339#if CXIMAGE_SUPPORT_SKA
340 if (imagetype==CXIMAGE_FORMAT_SKA){
341 CxImageSKA newima;
342 newima.Ghost(this);
343 if (newima.Encode(hFile)){
344 return true;
345 } else {
346 strcpy(info.szLastError,newima.GetLastError());
347 return false;
348 }
349 }
350#endif
351
352#if CXIMAGE_SUPPORT_RAW
353 if (imagetype==CXIMAGE_FORMAT_RAW){
354 CxImageRAW newima;
355 newima.Ghost(this);
356 if (newima.Encode(hFile)){
357 return true;
358 } else {
359 strcpy(info.szLastError,newima.GetLastError());
360 return false;
361 }
362 }
363#endif
364
365 strcpy(info.szLastError,"Encode: Unknown format");
366 return false;
367}
368////////////////////////////////////////////////////////////////////////////////
369/**
370 * Saves to disk or memory pagecount images, referenced by an array of CxImage pointers.
371 * \param hFile: file handle.
372 * \param pImages: array of CxImage pointers.
373 * \param pagecount: number of images.
374 * \param imagetype: can be CXIMAGE_FORMAT_TIF or CXIMAGE_FORMAT_GIF.
375 * \return true if everything is ok
376 */
377bool CxImage::Encode(FILE * hFile, CxImage ** pImages, int pagecount, DWORD imagetype)
378{
379 CxIOFile file(hFile);
380 return Encode(&file, pImages, pagecount,imagetype);
381}
382////////////////////////////////////////////////////////////////////////////////
383/**
384 * Saves to disk or memory pagecount images, referenced by an array of CxImage pointers.
385 * \param hFile: file handle (CxMemFile or CxIOFile), with write access.
386 * \param pImages: array of CxImage pointers.
387 * \param pagecount: number of images.
388 * \param imagetype: can be CXIMAGE_FORMAT_TIF, CXIMAGE_FORMAT_GIF or CXIMAGE_FORMAT_ICO.
389 * \return true if everything is ok
390 */
391bool CxImage::Encode(CxFile * hFile, CxImage ** pImages, int pagecount, DWORD imagetype)
392{
393#if CXIMAGE_SUPPORT_TIF
394 if (imagetype==CXIMAGE_FORMAT_TIF){
395 CxImageTIF newima;
396 newima.Ghost(this);
397 if (newima.Encode(hFile,pImages,pagecount)){
398 return true;
399 } else {
400 strcpy(info.szLastError,newima.GetLastError());
401 return false;
402 }
403 }
404#endif
405#if CXIMAGE_SUPPORT_GIF
406 if (imagetype==CXIMAGE_FORMAT_GIF){
407 CxImageGIF newima;
408 newima.Ghost(this);
409 if (newima.Encode(hFile,pImages,pagecount)){
410 return true;
411 } else {
412 strcpy(info.szLastError,newima.GetLastError());
413 return false;
414 }
415 }
416#endif
417#if CXIMAGE_SUPPORT_ICO
418 if (imagetype==CXIMAGE_FORMAT_ICO){
419 CxImageICO newima;
420 newima.Ghost(this);
421 if (newima.Encode(hFile,pImages,pagecount)){
422 return true;
423 } else {
424 strcpy(info.szLastError,newima.GetLastError());
425 return false;
426 }
427 }
428#endif
429 strcpy(info.szLastError,"Multipage Encode, Unsupported operation for this format");
430 return false;
431}
432
433////////////////////////////////////////////////////////////////////////////////
434/**
435 * exports the image into a RGBA buffer, Useful for OpenGL applications.
436 * \param buffer: output memory buffer pointer. Must be NULL,
437 * the function allocates and fill the memory,
438 * the application must free the buffer, see also FreeMemory().
439 * \param size: output memory buffer size.
440 * \param bFlipY: direction of Y axis. default = false.
441 * \return true if everything is ok
442 */
443bool CxImage::Encode2RGBA(BYTE * &buffer, long &size, bool bFlipY)
444{
445 if (buffer!=NULL){
446 strcpy(info.szLastError,"the buffer must be empty");
447 return false;
448 }
449 CxMemFile file;
450 file.Open();
451 if(Encode2RGBA(&file,bFlipY)){
452 buffer=file.GetBuffer();
453 size=file.Size();
454 return true;
455 }
456 return false;
457}
458////////////////////////////////////////////////////////////////////////////////
459/**
460 * exports the image into a RGBA buffer, Useful for OpenGL applications.
461 * \param hFile: file handle (CxMemFile or CxIOFile), with write access.
462 * \param bFlipY: direction of Y axis. default = false.
463 * \return true if everything is ok
464 */
465bool CxImage::Encode2RGBA(CxFile *hFile, bool bFlipY)
466{
467 if (EncodeSafeCheck(hFile)) return false;
468
469 for (long y1 = 0; y1 < head.biHeight; y1++) {
470 long y = bFlipY ? head.biHeight - 1 - y1 : y1;
471 for(long x = 0; x < head.biWidth; x++) {
472 RGBQUAD color = BlindGetPixelColor(x,y);
473 hFile->PutC(color.rgbRed);
474 hFile->PutC(color.rgbGreen);
475 hFile->PutC(color.rgbBlue);
476 hFile->PutC(color.rgbReserved);
477 }
478 }
479 return true;
480}
481
482////////////////////////////////////////////////////////////////////////////////
483#endif //CXIMAGE_SUPPORT_ENCODE
484////////////////////////////////////////////////////////////////////////////////
485
486////////////////////////////////////////////////////////////////////////////////
487#if CXIMAGE_SUPPORT_DECODE
488////////////////////////////////////////////////////////////////////////////////
489// For UNICODE support: char -> TCHAR
490/**
491 * Reads from disk the image in a specific format.
492 * - If decoding fails using the specified image format,
493 * the function will try the automatic file format recognition.
494 *
495 * \param filename: file name
496 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
497 * \return true if everything is ok
498 */
499bool CxImage::Load(const TCHAR * filename, DWORD imagetype)
500//bool CxImage::Load(const char * filename, DWORD imagetype)
501{
502 /*FILE* hFile; //file handle to read the image
503 if ((hFile=fopen(filename,"rb"))==NULL) return false;
504 bool bOK = Decode(hFile,imagetype);
505 fclose(hFile);*/
506
507 /* automatic file type recognition */
508 bool bOK = false;
509 if ( GetTypeIndexFromId(imagetype) ){
510 FILE* hFile; //file handle to read the image
511
512#ifdef WIN32
513 if ((hFile=_tfopen(filename,_T("rb")))==NULL) return false; // For UNICODE support
514#else
515 if ((hFile=fopen(filename,"rb"))==NULL) return false;
516#endif
517
518 bOK = Decode(hFile,imagetype);
519 fclose(hFile);
520 if (bOK) return bOK;
521 }
522
523 char szError[256];
524 strcpy(szError,info.szLastError); //save the first error
525
526 // if failed, try automatic recognition of the file...
527 FILE* hFile;
528
529#ifdef WIN32
530 if ((hFile=_tfopen(filename,_T("rb")))==NULL) return false; // For UNICODE support
531#else
532 if ((hFile=fopen(filename,"rb"))==NULL) return false;
533#endif
534
535 bOK = Decode(hFile,CXIMAGE_FORMAT_UNKNOWN);
536 fclose(hFile);
537
538 if (!bOK && imagetype > 0) strcpy(info.szLastError,szError); //restore the first error
539
540 return bOK;
541}
542////////////////////////////////////////////////////////////////////////////////
543#ifdef WIN32
544//bool CxImage::Load(LPCWSTR filename, DWORD imagetype)
545//{
546// /*FILE* hFile; //file handle to read the image
547// if ((hFile=_wfopen(filename, L"rb"))==NULL) return false;
548// bool bOK = Decode(hFile,imagetype);
549// fclose(hFile);*/
550//
551// /* automatic file type recognition */
552// bool bOK = false;
553// if ( GetTypeIndexFromId(imagetype) ){
554// FILE* hFile; //file handle to read the image
555// if ((hFile=_wfopen(filename,L"rb"))==NULL) return false;
556// bOK = Decode(hFile,imagetype);
557// fclose(hFile);
558// if (bOK) return bOK;
559// }
560//
561// char szError[256];
562// strcpy(szError,info.szLastError); //save the first error
563//
564// // if failed, try automatic recognition of the file...
565// FILE* hFile; //file handle to read the image
566// if ((hFile=_wfopen(filename,L"rb"))==NULL) return false;
567// bOK = Decode(hFile,CXIMAGE_FORMAT_UNKNOWN);
568// fclose(hFile);
569//
570// if (!bOK && imagetype > 0) strcpy(info.szLastError,szError); //restore the first error
571//
572// return bOK;
573//}
574////////////////////////////////////////////////////////////////////////////////
575/**
576 * Loads an image from the application resources.
577 * \param hRes: the resource handle returned by FindResource().
578 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS.
579 * \param hModule: NULL for internal resource, or external application/DLL hinstance returned by LoadLibray.
580 * \return true if everything is ok
581 */
582bool CxImage::LoadResource(HRSRC hRes, DWORD imagetype, HMODULE hModule)
583{
584 DWORD rsize=SizeofResource(hModule,hRes);
585 HGLOBAL hMem=::LoadResource(hModule,hRes);
586 if (hMem){
587 char* lpVoid=(char*)LockResource(hMem);
588 if (lpVoid){
589 // FILE* fTmp=tmpfile(); doesn't work with network
590 /*char tmpPath[MAX_PATH] = {0};
591 char tmpFile[MAX_PATH] = {0};
592 GetTempPath(MAX_PATH,tmpPath);
593 GetTempFileName(tmpPath,"IMG",0,tmpFile);
594 FILE* fTmp=fopen(tmpFile,"w+b");
595 if (fTmp){
596 fwrite(lpVoid,rsize,1,fTmp);
597 fseek(fTmp,0,SEEK_SET);
598 bool bOK = Decode(fTmp,imagetype);
599 fclose(fTmp);
600 DeleteFile(tmpFile);
601 return bOK;
602 }*/
603
604 CxMemFile fTmp((BYTE*)lpVoid,rsize);
605 return Decode(&fTmp,imagetype);
606 }
607 } else strcpy(info.szLastError,"Unable to load resource!");
608 return false;
609}
610#endif //WIN32
611////////////////////////////////////////////////////////////////////////////////
612/**
613 * Constructor from file name, see Load()
614 * \param filename: file name
615 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
616 */
617//
618// > filename: file name
619// > imagetype: specify the image format (CXIMAGE_FORMAT_BMP,...)
620// For UNICODE support: char -> TCHAR
621CxImage::CxImage(const TCHAR * filename, DWORD imagetype)
622//CxImage::CxImage(const char * filename, DWORD imagetype)
623{
624 Startup(imagetype);
625 Load(filename,imagetype);
626}
627////////////////////////////////////////////////////////////////////////////////
628/**
629 * Constructor from file handle, see Decode()
630 * \param stream: file handle, with read access.
631 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
632 */
633CxImage::CxImage(FILE * stream, DWORD imagetype)
634{
635 Startup(imagetype);
636 Decode(stream,imagetype);
637}
638////////////////////////////////////////////////////////////////////////////////
639/**
640 * Constructor from CxFile object, see Decode()
641 * \param stream: file handle (CxMemFile or CxIOFile), with read access.
642 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
643 */
644CxImage::CxImage(CxFile * stream, DWORD imagetype)
645{
646 Startup(imagetype);
647 Decode(stream,imagetype);
648}
649////////////////////////////////////////////////////////////////////////////////
650/**
651 * Constructor from memory buffer, see Decode()
652 * \param buffer: memory buffer
653 * \param size: size of buffer
654 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
655 */
656CxImage::CxImage(BYTE * buffer, DWORD size, DWORD imagetype)
657{
658 Startup(imagetype);
659 CxMemFile stream(buffer,size);
660 Decode(&stream,imagetype);
661}
662////////////////////////////////////////////////////////////////////////////////
663/**
664 * Loads an image from memory buffer
665 * \param buffer: memory buffer
666 * \param size: size of buffer
667 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
668 * \return true if everything is ok
669 */
670bool CxImage::Decode(BYTE * buffer, DWORD size, DWORD imagetype)
671{
672 CxMemFile file(buffer,size);
673 return Decode(&file,imagetype);
674}
675////////////////////////////////////////////////////////////////////////////////
676/**
677 * Loads an image from file handle.
678 * \param hFile: file handle, with read access.
679 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
680 * \return true if everything is ok
681 */
682bool CxImage::Decode(FILE *hFile, DWORD imagetype)
683{
684 CxIOFile file(hFile);
685 return Decode(&file,imagetype);
686}
687////////////////////////////////////////////////////////////////////////////////
688/**
689 * Loads an image from CxFile object
690 * \param hFile: file handle (CxMemFile or CxIOFile), with read access.
691 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
692 * \return true if everything is ok
693 * \sa ENUM_CXIMAGE_FORMATS
694 */
695bool CxImage::Decode(CxFile *hFile, DWORD imagetype)
696{
697 if (hFile == NULL){
698 strcpy(info.szLastError,CXIMAGE_ERR_NOFILE);
699 return false;
700 }
701
702 if (imagetype==CXIMAGE_FORMAT_UNKNOWN){
703 DWORD pos = hFile->Tell();
704#if CXIMAGE_SUPPORT_BMP
705 { CxImageBMP newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
706#endif
707#if CXIMAGE_SUPPORT_JPG
708 { CxImageJPG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
709#endif
710#if CXIMAGE_SUPPORT_ICO
711 { CxImageICO newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
712#endif
713#if CXIMAGE_SUPPORT_GIF
714 { CxImageGIF newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
715#endif
716#if CXIMAGE_SUPPORT_PNG
717 { CxImagePNG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
718#endif
719#if CXIMAGE_SUPPORT_TIF
720 { CxImageTIF newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
721#endif
722#if CXIMAGE_SUPPORT_MNG
723 { CxImageMNG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
724#endif
725#if CXIMAGE_SUPPORT_TGA
726 { CxImageTGA newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
727#endif
728#if CXIMAGE_SUPPORT_PCX
729 { CxImagePCX newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
730#endif
731#if CXIMAGE_SUPPORT_WBMP
732 { CxImageWBMP newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
733#endif
734#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS
735 { CxImageWMF newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
736#endif
737#if CXIMAGE_SUPPORT_JBG
738 { CxImageJBG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
739#endif
740#if CXIMAGE_SUPPORT_JASPER
741 { CxImageJAS newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
742#endif
743#if CXIMAGE_SUPPORT_SKA
744 { CxImageSKA newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
745#endif
746#if CXIMAGE_SUPPORT_RAW
747 { CxImageRAW newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
748#endif
749 }
750
751#if CXIMAGE_SUPPORT_BMP
752 if (imagetype==CXIMAGE_FORMAT_BMP){
753 CxImageBMP newima;
754 newima.CopyInfo(*this);
755 if (newima.Decode(hFile)){
756 Transfer(newima);
757 return true;
758 } else {
759 strcpy(info.szLastError,newima.GetLastError());
760 return false;
761 }
762 }
763#endif
764#if CXIMAGE_SUPPORT_JPG
765 if (imagetype==CXIMAGE_FORMAT_JPG){
766 CxImageJPG newima;
767 newima.CopyInfo(*this); // <ignacio>
768 if (newima.Decode(hFile)){
769 Transfer(newima);
770 return true;
771 } else {
772 strcpy(info.szLastError,newima.GetLastError());
773 return false;
774 }
775 }
776#endif
777#if CXIMAGE_SUPPORT_ICO
778 if (imagetype==CXIMAGE_FORMAT_ICO){
779 CxImageICO newima;
780 newima.CopyInfo(*this);
781 if (newima.Decode(hFile)){
782 Transfer(newima);
783 return true;
784 } else {
785 info.nNumFrames = newima.info.nNumFrames;
786 strcpy(info.szLastError,newima.GetLastError());
787 return false;
788 }
789 }
790#endif
791#if CXIMAGE_SUPPORT_GIF
792 if (imagetype==CXIMAGE_FORMAT_GIF){
793 CxImageGIF newima;
794 newima.CopyInfo(*this);
795 if (newima.Decode(hFile)){
796 Transfer(newima);
797 return true;
798 } else {
799 info.nNumFrames = newima.info.nNumFrames;
800 strcpy(info.szLastError,newima.GetLastError());
801 return false;
802 }
803 }
804#endif
805#if CXIMAGE_SUPPORT_PNG
806 if (imagetype==CXIMAGE_FORMAT_PNG){
807 CxImagePNG newima;
808 newima.CopyInfo(*this);
809 if (newima.Decode(hFile)){
810 Transfer(newima);
811 return true;
812 } else {
813 strcpy(info.szLastError,newima.GetLastError());
814 return false;
815 }
816 }
817#endif
818#if CXIMAGE_SUPPORT_TIF
819 if (imagetype==CXIMAGE_FORMAT_TIF){
820 CxImageTIF newima;
821 newima.CopyInfo(*this);
822 if (newima.Decode(hFile)){
823 Transfer(newima);
824 return true;
825 } else {
826 info.nNumFrames = newima.info.nNumFrames;
827 strcpy(info.szLastError,newima.GetLastError());
828 return false;
829 }
830 }
831#endif
832#if CXIMAGE_SUPPORT_MNG
833 if (imagetype==CXIMAGE_FORMAT_MNG){
834 CxImageMNG newima;
835 newima.CopyInfo(*this);
836 if (newima.Decode(hFile)){
837 Transfer(newima);
838 return true;
839 } else {
840 info.nNumFrames = newima.info.nNumFrames;
841 strcpy(info.szLastError,newima.GetLastError());
842 return false;
843 }
844 }
845#endif
846#if CXIMAGE_SUPPORT_TGA
847 if (imagetype==CXIMAGE_FORMAT_TGA){
848 CxImageTGA newima;
849 newima.CopyInfo(*this);
850 if (newima.Decode(hFile)){
851 Transfer(newima);
852 return true;
853 } else {
854 strcpy(info.szLastError,newima.GetLastError());
855 return false;
856 }
857 }
858#endif
859#if CXIMAGE_SUPPORT_PCX
860 if (imagetype==CXIMAGE_FORMAT_PCX){
861 CxImagePCX newima;
862 newima.CopyInfo(*this);
863 if (newima.Decode(hFile)){
864 Transfer(newima);
865 return true;
866 } else {
867 strcpy(info.szLastError,newima.GetLastError());
868 return false;
869 }
870 }
871#endif
872#if CXIMAGE_SUPPORT_WBMP
873 if (imagetype==CXIMAGE_FORMAT_WBMP){
874 CxImageWBMP newima;
875 newima.CopyInfo(*this);
876 if (newima.Decode(hFile)){
877 Transfer(newima);
878 return true;
879 } else {
880 strcpy(info.szLastError,newima.GetLastError());
881 return false;
882 }
883 }
884#endif
885#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS // vho - WMF support
886 if (imagetype == CXIMAGE_FORMAT_WMF){
887 CxImageWMF newima;
888 newima.CopyInfo(*this);
889 if (newima.Decode(hFile)){
890 Transfer(newima);
891 return true;
892 } else {
893 strcpy(info.szLastError,newima.GetLastError());
894 return false;
895 }
896 }
897#endif
898#if CXIMAGE_SUPPORT_JBG
899 if (imagetype==CXIMAGE_FORMAT_JBG){
900 CxImageJBG newima;
901 newima.CopyInfo(*this);
902 if (newima.Decode(hFile)){
903 Transfer(newima);
904 return true;
905 } else {
906 strcpy(info.szLastError,newima.GetLastError());
907 return false;
908 }
909 }
910#endif
911#if CXIMAGE_SUPPORT_JASPER
912 if (
913 #if CXIMAGE_SUPPORT_JP2
914 imagetype==CXIMAGE_FORMAT_JP2 ||
915 #endif
916 #if CXIMAGE_SUPPORT_JPC
917 imagetype==CXIMAGE_FORMAT_JPC ||
918 #endif
919 #if CXIMAGE_SUPPORT_PGX
920 imagetype==CXIMAGE_FORMAT_PGX ||
921 #endif
922 #if CXIMAGE_SUPPORT_PNM
923 imagetype==CXIMAGE_FORMAT_PNM ||
924 #endif
925 #if CXIMAGE_SUPPORT_RAS
926 imagetype==CXIMAGE_FORMAT_RAS ||
927 #endif
928 false ){
929 CxImageJAS newima;
930 newima.CopyInfo(*this);
931 if (newima.Decode(hFile,imagetype)){
932 Transfer(newima);
933 return true;
934 } else {
935 strcpy(info.szLastError,newima.GetLastError());
936 return false;
937 }
938 }
939#endif
940#if CXIMAGE_SUPPORT_SKA
941 if (imagetype==CXIMAGE_FORMAT_SKA){
942 CxImageSKA newima;
943 newima.CopyInfo(*this);
944 if (newima.Decode(hFile)){
945 Transfer(newima);
946 return true;
947 } else {
948 strcpy(info.szLastError,newima.GetLastError());
949 return false;
950 }
951 }
952#endif
953
954#if CXIMAGE_SUPPORT_RAW
955 if (imagetype==CXIMAGE_FORMAT_RAW){
956 CxImageRAW newima;
957 newima.CopyInfo(*this);
958 if (newima.Decode(hFile)){
959 Transfer(newima);
960 return true;
961 } else {
962 strcpy(info.szLastError,newima.GetLastError());
963 return false;
964 }
965 }
966#endif
967
968 strcpy(info.szLastError,"Decode: Unknown or wrong format");
969 return false;
970}
971////////////////////////////////////////////////////////////////////////////////
972/**
973 * Loads an image from CxFile object
974 * \param hFile: file handle (CxMemFile or CxIOFile), with read access.
975 * \param imagetype: file format, default = 0 (CXIMAGE_FORMAT_UNKNOWN)
976 * \return : if imagetype is not 0, the function returns true when imagetype
977 * matches the file image format. If imagetype is 0, the function returns true
978 * when the file image format is recognized as a supported format.
979 * If the returned value is true, use GetHeight(), GetWidth() or GetType()
980 * to retrieve the basic image information.
981 * \sa ENUM_CXIMAGE_FORMATS
982 */
983bool CxImage::CheckFormat(CxFile * hFile, DWORD imagetype)
984{
985 SetType(CXIMAGE_FORMAT_UNKNOWN);
986 SetEscape(-1);
987
988 if (!Decode(hFile,imagetype))
989 return false;
990
991 if (GetType() == CXIMAGE_FORMAT_UNKNOWN || GetType() != imagetype)
992 return false;
993
994 return true;
995}
996////////////////////////////////////////////////////////////////////////////////
997bool CxImage::CheckFormat(BYTE * buffer, DWORD size, DWORD imagetype)
998{
999 if (buffer==NULL || size==NULL){
1000 strcpy(info.szLastError,"invalid or empty buffer");
1001 return false;
1002 }
1003 CxMemFile file(buffer,size);
1004 return CheckFormat(&file,imagetype);
1005}
1006////////////////////////////////////////////////////////////////////////////////
1007#endif //CXIMAGE_SUPPORT_DECODE
1008////////////////////////////////////////////////////////////////////////////////
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