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01111366 RR |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: image.cpp | |
3 | // Purpose: wxImage | |
4 | // Author: Robert Roebling | |
5 | // RCS-ID: $Id$ | |
6 | // Copyright: (c) Robert Roebling | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | #ifdef __GNUG__ | |
11 | #pragma implementation "image.h" | |
12 | #endif | |
13 | ||
0b4f9ee3 UU |
14 | // For compilers that support precompilation, includes "wx.h". |
15 | #include "wx/wxprec.h" | |
16 | ||
17 | #ifdef __BORLANDC__ | |
edccf428 | 18 | #pragma hdrstop |
0b4f9ee3 UU |
19 | #endif |
20 | ||
01111366 | 21 | #include "wx/image.h" |
99c67c77 | 22 | #include "wx/bitmap.h" |
01111366 RR |
23 | #include "wx/debug.h" |
24 | #include "wx/log.h" | |
f6fcbb63 | 25 | #include "wx/app.h" |
dc86cb34 | 26 | #include "wx/filefn.h" |
3d05544e | 27 | #include "wx/wfstream.h" |
b75867a6 | 28 | #include "wx/intl.h" |
a91b47e8 | 29 | #include "wx/module.h" |
01111366 | 30 | |
58a8ab88 JS |
31 | // For memcpy |
32 | #include <string.h> | |
7a632f10 | 33 | #include <math.h> |
58a8ab88 | 34 | |
a3ef5bf5 | 35 | #ifdef __SALFORDC__ |
edccf428 | 36 | #undef FAR |
a3ef5bf5 JS |
37 | #endif |
38 | ||
2432b92d | 39 | #ifdef __WXMSW__ |
edccf428 | 40 | #include "wx/msw/private.h" |
2432b92d JS |
41 | #endif |
42 | ||
01111366 RR |
43 | //----------------------------------------------------------------------------- |
44 | // wxImage | |
45 | //----------------------------------------------------------------------------- | |
46 | ||
47 | class wxImageRefData: public wxObjectRefData | |
48 | { | |
fd0eed64 | 49 | public: |
edccf428 VZ |
50 | wxImageRefData(); |
51 | ~wxImageRefData(); | |
c7abc967 | 52 | |
dbda9e86 JS |
53 | int m_width; |
54 | int m_height; | |
55 | unsigned char *m_data; | |
56 | bool m_hasMask; | |
57 | unsigned char m_maskRed,m_maskGreen,m_maskBlue; | |
58 | bool m_ok; | |
01111366 RR |
59 | }; |
60 | ||
edccf428 | 61 | wxImageRefData::wxImageRefData() |
01111366 | 62 | { |
fd0eed64 RR |
63 | m_width = 0; |
64 | m_height = 0; | |
65 | m_data = (unsigned char*) NULL; | |
66 | m_ok = FALSE; | |
67 | m_maskRed = 0; | |
68 | m_maskGreen = 0; | |
69 | m_maskBlue = 0; | |
70 | m_hasMask = FALSE; | |
01111366 RR |
71 | } |
72 | ||
edccf428 | 73 | wxImageRefData::~wxImageRefData() |
01111366 | 74 | { |
97fdfcc9 | 75 | if (m_data) |
58c837a4 | 76 | free( m_data ); |
01111366 RR |
77 | } |
78 | ||
79 | wxList wxImage::sm_handlers; | |
80 | ||
81 | //----------------------------------------------------------------------------- | |
82 | ||
83 | #define M_IMGDATA ((wxImageRefData *)m_refData) | |
84 | ||
edccf428 | 85 | IMPLEMENT_DYNAMIC_CLASS(wxImage, wxObject) |
01111366 RR |
86 | |
87 | wxImage::wxImage() | |
88 | { | |
89 | } | |
90 | ||
91 | wxImage::wxImage( int width, int height ) | |
92 | { | |
fd0eed64 | 93 | Create( width, height ); |
01111366 RR |
94 | } |
95 | ||
96 | wxImage::wxImage( const wxString& name, long type ) | |
97 | { | |
fd0eed64 | 98 | LoadFile( name, type ); |
01111366 RR |
99 | } |
100 | ||
9e9ee68e VS |
101 | wxImage::wxImage( const wxString& name, const wxString& mimetype ) |
102 | { | |
103 | LoadFile( name, mimetype ); | |
104 | } | |
105 | ||
e02afc7a | 106 | #if wxUSE_STREAMS |
3d05544e JS |
107 | wxImage::wxImage( wxInputStream& stream, long type ) |
108 | { | |
109 | LoadFile( stream, type ); | |
110 | } | |
9e9ee68e VS |
111 | |
112 | wxImage::wxImage( wxInputStream& stream, const wxString& mimetype ) | |
113 | { | |
114 | LoadFile( stream, mimetype ); | |
115 | } | |
e02afc7a | 116 | #endif // wxUSE_STREAMS |
3d05544e | 117 | |
4698648f VZ |
118 | wxImage::wxImage( const wxImage& image ) |
119 | { | |
120 | Ref(image); | |
01111366 RR |
121 | } |
122 | ||
4698648f VZ |
123 | wxImage::wxImage( const wxImage* image ) |
124 | { | |
125 | if (image) Ref(*image); | |
01111366 RR |
126 | } |
127 | ||
128 | void wxImage::Create( int width, int height ) | |
129 | { | |
aadaf841 GRG |
130 | UnRef(); |
131 | ||
fd0eed64 | 132 | m_refData = new wxImageRefData(); |
c7abc967 | 133 | |
fd0eed64 RR |
134 | M_IMGDATA->m_data = (unsigned char *) malloc( width*height*3 ); |
135 | if (M_IMGDATA->m_data) | |
136 | { | |
137 | for (int l = 0; l < width*height*3; l++) M_IMGDATA->m_data[l] = 0; | |
c7abc967 | 138 | |
fd0eed64 RR |
139 | M_IMGDATA->m_width = width; |
140 | M_IMGDATA->m_height = height; | |
141 | M_IMGDATA->m_ok = TRUE; | |
142 | } | |
143 | else | |
144 | { | |
145 | UnRef(); | |
146 | } | |
01111366 RR |
147 | } |
148 | ||
149 | void wxImage::Destroy() | |
150 | { | |
fd0eed64 | 151 | UnRef(); |
01111366 RR |
152 | } |
153 | ||
ce9a75d2 | 154 | wxImage wxImage::Scale( int width, int height ) const |
4bc67cc5 RR |
155 | { |
156 | wxImage image; | |
c7abc967 | 157 | |
223d09f6 | 158 | wxCHECK_MSG( Ok(), image, wxT("invalid image") ); |
c7abc967 | 159 | |
223d09f6 | 160 | wxCHECK_MSG( (width > 0) && (height > 0), image, wxT("invalid image size") ); |
c7abc967 | 161 | |
4bc67cc5 | 162 | image.Create( width, height ); |
c7abc967 | 163 | |
4bc67cc5 | 164 | char unsigned *data = image.GetData(); |
c7abc967 | 165 | |
223d09f6 | 166 | wxCHECK_MSG( data, image, wxT("unable to create image") ); |
c7abc967 | 167 | |
4bc67cc5 RR |
168 | if (M_IMGDATA->m_hasMask) |
169 | image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue ); | |
c7abc967 | 170 | |
6e13c196 RR |
171 | long old_height = M_IMGDATA->m_height; |
172 | long old_width = M_IMGDATA->m_width; | |
c7abc967 | 173 | |
6e13c196 RR |
174 | char unsigned *source_data = M_IMGDATA->m_data; |
175 | char unsigned *target_data = data; | |
c7abc967 | 176 | |
6e13c196 | 177 | for (long j = 0; j < height; j++) |
4bc67cc5 | 178 | { |
6e13c196 | 179 | long y_offset = (j * old_height / height) * old_width; |
c7abc967 | 180 | |
6e13c196 | 181 | for (long i = 0; i < width; i++) |
4698648f | 182 | { |
c7abc967 VZ |
183 | memcpy( target_data, |
184 | source_data + 3*(y_offset + ((i * old_width )/ width)), | |
dbda9e86 | 185 | 3 ); |
6e13c196 | 186 | target_data += 3; |
4698648f | 187 | } |
4bc67cc5 | 188 | } |
c7abc967 | 189 | |
4bc67cc5 RR |
190 | return image; |
191 | } | |
4698648f | 192 | |
7b2471a0 SB |
193 | wxImage wxImage::GetSubImage( const wxRect &rect ) const |
194 | { | |
195 | wxImage image; | |
196 | ||
223d09f6 | 197 | wxCHECK_MSG( Ok(), image, wxT("invalid image") ); |
7b2471a0 | 198 | |
58c837a4 RR |
199 | wxCHECK_MSG( (rect.GetLeft()>=0) && (rect.GetTop()>=0) && (rect.GetRight()<=GetWidth()) && (rect.GetBottom()<=GetHeight()), |
200 | image, wxT("invalid subimage size") ); | |
7b2471a0 SB |
201 | |
202 | int subwidth=rect.GetWidth(); | |
203 | const int subheight=rect.GetHeight(); | |
204 | ||
205 | image.Create( subwidth, subheight ); | |
206 | ||
207 | char unsigned *subdata = image.GetData(), *data=GetData(); | |
208 | ||
223d09f6 | 209 | wxCHECK_MSG( subdata, image, wxT("unable to create image") ); |
7b2471a0 SB |
210 | |
211 | if (M_IMGDATA->m_hasMask) | |
212 | image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue ); | |
213 | ||
214 | const int subleft=3*rect.GetLeft(); | |
215 | const int width=3*GetWidth(); | |
216 | subwidth*=3; | |
995612e2 | 217 | |
7b2471a0 SB |
218 | data+=rect.GetTop()*width+subleft; |
219 | ||
220 | for (long j = 0; j < subheight; ++j) | |
221 | { | |
222 | memcpy( subdata, data, subwidth); | |
223 | subdata+=subwidth; | |
995612e2 | 224 | data+=width; |
7b2471a0 SB |
225 | } |
226 | ||
227 | return image; | |
228 | } | |
229 | ||
be25e480 RR |
230 | void wxImage::Replace( unsigned char r1, unsigned char g1, unsigned char b1, |
231 | unsigned char r2, unsigned char g2, unsigned char b2 ) | |
232 | { | |
233 | wxCHECK_RET( Ok(), wxT("invalid image") ); | |
234 | ||
235 | char unsigned *data = GetData(); | |
06b466c7 | 236 | |
be25e480 RR |
237 | const int w = GetWidth(); |
238 | const int h = GetHeight(); | |
239 | ||
240 | for (int j = 0; j < h; j++) | |
241 | for (int i = 0; i < w; i++) | |
069d0f27 VZ |
242 | { |
243 | if ((data[0] == r1) && (data[1] == g1) && (data[2] == b1)) | |
244 | { | |
245 | data[0] = r2; | |
246 | data[1] = g2; | |
247 | data[2] = b2; | |
248 | } | |
249 | data += 3; | |
250 | } | |
be25e480 RR |
251 | } |
252 | ||
ef539066 RR |
253 | void wxImage::SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b ) |
254 | { | |
223d09f6 | 255 | wxCHECK_RET( Ok(), wxT("invalid image") ); |
c7abc967 | 256 | |
ef539066 RR |
257 | int w = M_IMGDATA->m_width; |
258 | int h = M_IMGDATA->m_height; | |
c7abc967 | 259 | |
223d09f6 | 260 | wxCHECK_RET( (x>=0) && (y>=0) && (x<w) && (y<h), wxT("invalid image index") ); |
c7abc967 | 261 | |
ef539066 | 262 | long pos = (y * w + x) * 3; |
c7abc967 | 263 | |
ef539066 RR |
264 | M_IMGDATA->m_data[ pos ] = r; |
265 | M_IMGDATA->m_data[ pos+1 ] = g; | |
266 | M_IMGDATA->m_data[ pos+2 ] = b; | |
267 | } | |
268 | ||
269 | unsigned char wxImage::GetRed( int x, int y ) | |
270 | { | |
223d09f6 | 271 | wxCHECK_MSG( Ok(), 0, wxT("invalid image") ); |
c7abc967 | 272 | |
ef539066 RR |
273 | int w = M_IMGDATA->m_width; |
274 | int h = M_IMGDATA->m_height; | |
c7abc967 | 275 | |
223d09f6 | 276 | wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, wxT("invalid image index") ); |
c7abc967 | 277 | |
ef539066 | 278 | long pos = (y * w + x) * 3; |
c7abc967 | 279 | |
ef539066 RR |
280 | return M_IMGDATA->m_data[pos]; |
281 | } | |
282 | ||
283 | unsigned char wxImage::GetGreen( int x, int y ) | |
284 | { | |
223d09f6 | 285 | wxCHECK_MSG( Ok(), 0, wxT("invalid image") ); |
c7abc967 | 286 | |
ef539066 RR |
287 | int w = M_IMGDATA->m_width; |
288 | int h = M_IMGDATA->m_height; | |
c7abc967 | 289 | |
223d09f6 | 290 | wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, wxT("invalid image index") ); |
c7abc967 | 291 | |
ef539066 | 292 | long pos = (y * w + x) * 3; |
c7abc967 | 293 | |
ef539066 RR |
294 | return M_IMGDATA->m_data[pos+1]; |
295 | } | |
296 | ||
297 | unsigned char wxImage::GetBlue( int x, int y ) | |
298 | { | |
223d09f6 | 299 | wxCHECK_MSG( Ok(), 0, wxT("invalid image") ); |
c7abc967 | 300 | |
ef539066 RR |
301 | int w = M_IMGDATA->m_width; |
302 | int h = M_IMGDATA->m_height; | |
c7abc967 | 303 | |
223d09f6 | 304 | wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, wxT("invalid image index") ); |
c7abc967 | 305 | |
ef539066 | 306 | long pos = (y * w + x) * 3; |
c7abc967 | 307 | |
ef539066 RR |
308 | return M_IMGDATA->m_data[pos+2]; |
309 | } | |
4698648f VZ |
310 | |
311 | bool wxImage::Ok() const | |
312 | { | |
313 | return (M_IMGDATA && M_IMGDATA->m_ok); | |
01111366 RR |
314 | } |
315 | ||
316 | char unsigned *wxImage::GetData() const | |
317 | { | |
223d09f6 | 318 | wxCHECK_MSG( Ok(), (char unsigned *)NULL, wxT("invalid image") ); |
c7abc967 | 319 | |
fd0eed64 | 320 | return M_IMGDATA->m_data; |
01111366 RR |
321 | } |
322 | ||
58a8ab88 | 323 | void wxImage::SetData( char unsigned *data ) |
01111366 | 324 | { |
223d09f6 | 325 | wxCHECK_RET( Ok(), wxT("invalid image") ); |
58a8ab88 | 326 | |
ed58dbea RR |
327 | wxImageRefData *newRefData = new wxImageRefData(); |
328 | ||
329 | newRefData->m_width = M_IMGDATA->m_width; | |
330 | newRefData->m_height = M_IMGDATA->m_height; | |
331 | newRefData->m_data = data; | |
332 | newRefData->m_ok = TRUE; | |
333 | newRefData->m_maskRed = M_IMGDATA->m_maskRed; | |
334 | newRefData->m_maskGreen = M_IMGDATA->m_maskGreen; | |
335 | newRefData->m_maskBlue = M_IMGDATA->m_maskBlue; | |
336 | newRefData->m_hasMask = M_IMGDATA->m_hasMask; | |
995612e2 | 337 | |
ed58dbea | 338 | UnRef(); |
995612e2 | 339 | |
ed58dbea | 340 | m_refData = newRefData; |
01111366 RR |
341 | } |
342 | ||
343 | void wxImage::SetMaskColour( unsigned char r, unsigned char g, unsigned char b ) | |
344 | { | |
223d09f6 | 345 | wxCHECK_RET( Ok(), wxT("invalid image") ); |
c7abc967 | 346 | |
fd0eed64 RR |
347 | M_IMGDATA->m_maskRed = r; |
348 | M_IMGDATA->m_maskGreen = g; | |
349 | M_IMGDATA->m_maskBlue = b; | |
350 | M_IMGDATA->m_hasMask = TRUE; | |
01111366 RR |
351 | } |
352 | ||
353 | unsigned char wxImage::GetMaskRed() const | |
354 | { | |
223d09f6 | 355 | wxCHECK_MSG( Ok(), 0, wxT("invalid image") ); |
c7abc967 | 356 | |
fd0eed64 | 357 | return M_IMGDATA->m_maskRed; |
01111366 RR |
358 | } |
359 | ||
360 | unsigned char wxImage::GetMaskGreen() const | |
361 | { | |
223d09f6 | 362 | wxCHECK_MSG( Ok(), 0, wxT("invalid image") ); |
c7abc967 | 363 | |
fd0eed64 | 364 | return M_IMGDATA->m_maskGreen; |
01111366 RR |
365 | } |
366 | ||
367 | unsigned char wxImage::GetMaskBlue() const | |
368 | { | |
223d09f6 | 369 | wxCHECK_MSG( Ok(), 0, wxT("invalid image") ); |
c7abc967 | 370 | |
fd0eed64 | 371 | return M_IMGDATA->m_maskBlue; |
01111366 | 372 | } |
4698648f | 373 | |
01111366 RR |
374 | void wxImage::SetMask( bool mask ) |
375 | { | |
223d09f6 | 376 | wxCHECK_RET( Ok(), wxT("invalid image") ); |
c7abc967 | 377 | |
fd0eed64 | 378 | M_IMGDATA->m_hasMask = mask; |
01111366 RR |
379 | } |
380 | ||
381 | bool wxImage::HasMask() const | |
382 | { | |
223d09f6 | 383 | wxCHECK_MSG( Ok(), FALSE, wxT("invalid image") ); |
c7abc967 | 384 | |
fd0eed64 | 385 | return M_IMGDATA->m_hasMask; |
01111366 RR |
386 | } |
387 | ||
4698648f VZ |
388 | int wxImage::GetWidth() const |
389 | { | |
223d09f6 | 390 | wxCHECK_MSG( Ok(), 0, wxT("invalid image") ); |
c7abc967 | 391 | |
4698648f | 392 | return M_IMGDATA->m_width; |
01111366 RR |
393 | } |
394 | ||
4698648f VZ |
395 | int wxImage::GetHeight() const |
396 | { | |
223d09f6 | 397 | wxCHECK_MSG( Ok(), 0, wxT("invalid image") ); |
c7abc967 | 398 | |
4698648f | 399 | return M_IMGDATA->m_height; |
01111366 RR |
400 | } |
401 | ||
402 | bool wxImage::LoadFile( const wxString& filename, long type ) | |
403 | { | |
e02afc7a | 404 | #if wxUSE_STREAMS |
3d05544e | 405 | if (wxFileExists(filename)) |
fd0eed64 | 406 | { |
3d05544e | 407 | wxFileInputStream stream(filename); |
069d0f27 | 408 | wxBufferedInputStream bstream( stream ); |
1b055864 | 409 | return LoadFile(bstream, type); |
3d05544e | 410 | } |
97fdfcc9 | 411 | else |
58c837a4 RR |
412 | { |
413 | wxLogError( _("Can't load image from file '%s': file does not exist."), filename.c_str() ); | |
9e9ee68e VS |
414 | |
415 | return FALSE; | |
416 | } | |
417 | #else // !wxUSE_STREAMS | |
418 | return FALSE; | |
419 | #endif // wxUSE_STREAMS | |
420 | } | |
421 | ||
422 | bool wxImage::LoadFile( const wxString& filename, const wxString& mimetype ) | |
423 | { | |
424 | #if wxUSE_STREAMS | |
425 | if (wxFileExists(filename)) | |
426 | { | |
427 | wxFileInputStream stream(filename); | |
069d0f27 | 428 | wxBufferedInputStream bstream( stream ); |
1b055864 | 429 | return LoadFile(bstream, mimetype); |
9e9ee68e | 430 | } |
97fdfcc9 | 431 | else |
58c837a4 RR |
432 | { |
433 | wxLogError( _("Can't load image from file '%s': file does not exist."), filename.c_str() ); | |
c7abc967 | 434 | |
fd0eed64 RR |
435 | return FALSE; |
436 | } | |
e02afc7a | 437 | #else // !wxUSE_STREAMS |
dbda9e86 | 438 | return FALSE; |
e02afc7a | 439 | #endif // wxUSE_STREAMS |
1ccbb61a VZ |
440 | } |
441 | ||
442 | bool wxImage::SaveFile( const wxString& filename, int type ) | |
443 | { | |
e02afc7a | 444 | #if wxUSE_STREAMS |
1ccbb61a | 445 | wxFileOutputStream stream(filename); |
9e9ee68e | 446 | |
1ccbb61a | 447 | if ( stream.LastError() == wxStream_NOERROR ) |
1b055864 | 448 | { |
069d0f27 | 449 | wxBufferedOutputStream bstream( stream ); |
1b055864 RR |
450 | return SaveFile(bstream, type); |
451 | } | |
1ccbb61a | 452 | else |
e02afc7a | 453 | #endif // wxUSE_STREAMS |
1ccbb61a | 454 | return FALSE; |
3d05544e | 455 | } |
01111366 | 456 | |
9e9ee68e VS |
457 | bool wxImage::SaveFile( const wxString& filename, const wxString& mimetype ) |
458 | { | |
459 | #if wxUSE_STREAMS | |
460 | wxFileOutputStream stream(filename); | |
c7abc967 | 461 | |
9e9ee68e | 462 | if ( stream.LastError() == wxStream_NOERROR ) |
1b055864 | 463 | { |
069d0f27 | 464 | wxBufferedOutputStream bstream( stream ); |
1b055864 RR |
465 | return SaveFile(bstream, mimetype); |
466 | } | |
9e9ee68e VS |
467 | else |
468 | #endif // wxUSE_STREAMS | |
469 | return FALSE; | |
470 | } | |
471 | ||
87202f78 SB |
472 | bool wxImage::CanRead( const wxString &name ) |
473 | { | |
474 | #if wxUSE_STREAMS | |
475 | wxFileInputStream stream(name); | |
476 | return CanRead(stream); | |
477 | #else | |
478 | return FALSE; | |
479 | #endif | |
480 | } | |
481 | ||
e02afc7a | 482 | #if wxUSE_STREAMS |
deb2fec0 | 483 | |
87202f78 SB |
484 | bool wxImage::CanRead( wxInputStream &stream ) |
485 | { | |
486 | wxList &list=GetHandlers(); | |
004fd0c8 | 487 | |
87202f78 | 488 | for ( wxList::Node *node = list.GetFirst(); node; node = node->GetNext() ) |
004fd0c8 | 489 | { |
87202f78 SB |
490 | wxImageHandler *handler=(wxImageHandler*)node->GetData(); |
491 | if (handler->CanRead( stream )) | |
069d0f27 | 492 | return TRUE; |
87202f78 SB |
493 | } |
494 | ||
495 | return FALSE; | |
496 | } | |
497 | ||
3d05544e JS |
498 | bool wxImage::LoadFile( wxInputStream& stream, long type ) |
499 | { | |
500 | UnRef(); | |
c7abc967 | 501 | |
fd0eed64 | 502 | m_refData = new wxImageRefData; |
c7abc967 | 503 | |
deb2fec0 SB |
504 | wxImageHandler *handler; |
505 | ||
506 | if (type==wxBITMAP_TYPE_ANY) | |
507 | { | |
995612e2 | 508 | wxList &list=GetHandlers(); |
deb2fec0 | 509 | |
995612e2 VZ |
510 | for ( wxList::Node *node = list.GetFirst(); node; node = node->GetNext() ) |
511 | { | |
512 | handler=(wxImageHandler*)node->GetData(); | |
513 | if (handler->CanRead( stream )) | |
514 | return handler->LoadFile( this, stream ); | |
7b2471a0 | 515 | |
995612e2 | 516 | } |
deb2fec0 | 517 | |
58c837a4 | 518 | wxLogWarning( _("No handler found for image type.") ); |
995612e2 | 519 | return FALSE; |
deb2fec0 SB |
520 | } |
521 | ||
522 | handler = FindHandler(type); | |
c7abc967 | 523 | |
4698648f | 524 | if (handler == NULL) |
fd0eed64 | 525 | { |
58c837a4 | 526 | wxLogWarning( _("No image handler for type %d defined."), type ); |
c7abc967 | 527 | |
fd0eed64 RR |
528 | return FALSE; |
529 | } | |
c7abc967 | 530 | |
3d05544e | 531 | return handler->LoadFile( this, stream ); |
01111366 RR |
532 | } |
533 | ||
9e9ee68e VS |
534 | bool wxImage::LoadFile( wxInputStream& stream, const wxString& mimetype ) |
535 | { | |
536 | UnRef(); | |
537 | ||
538 | m_refData = new wxImageRefData; | |
539 | ||
540 | wxImageHandler *handler = FindHandlerMime(mimetype); | |
541 | ||
542 | if (handler == NULL) | |
543 | { | |
58c837a4 | 544 | wxLogWarning( _("No image handler for type %s defined."), mimetype.GetData() ); |
9e9ee68e VS |
545 | |
546 | return FALSE; | |
547 | } | |
548 | ||
549 | return handler->LoadFile( this, stream ); | |
550 | } | |
551 | ||
3d05544e | 552 | bool wxImage::SaveFile( wxOutputStream& stream, int type ) |
01111366 | 553 | { |
223d09f6 | 554 | wxCHECK_MSG( Ok(), FALSE, wxT("invalid image") ); |
c7abc967 | 555 | |
fd0eed64 | 556 | wxImageHandler *handler = FindHandler(type); |
c7abc967 | 557 | |
4698648f | 558 | if (handler == NULL) |
fd0eed64 | 559 | { |
58c837a4 | 560 | wxLogWarning( _("No image handler for type %d defined."), type ); |
9e9ee68e VS |
561 | |
562 | return FALSE; | |
563 | } | |
564 | ||
565 | return handler->SaveFile( this, stream ); | |
566 | } | |
567 | ||
568 | bool wxImage::SaveFile( wxOutputStream& stream, const wxString& mimetype ) | |
569 | { | |
223d09f6 | 570 | wxCHECK_MSG( Ok(), FALSE, wxT("invalid image") ); |
c7abc967 | 571 | |
9e9ee68e | 572 | wxImageHandler *handler = FindHandlerMime(mimetype); |
c7abc967 | 573 | |
9e9ee68e VS |
574 | if (handler == NULL) |
575 | { | |
58c837a4 | 576 | wxLogWarning( _("No image handler for type %s defined."), mimetype.GetData() ); |
c7abc967 | 577 | |
dbda9e86 | 578 | return FALSE; |
fd0eed64 | 579 | } |
c7abc967 | 580 | |
3d05544e | 581 | return handler->SaveFile( this, stream ); |
01111366 | 582 | } |
e02afc7a | 583 | #endif // wxUSE_STREAMS |
01111366 RR |
584 | |
585 | void wxImage::AddHandler( wxImageHandler *handler ) | |
586 | { | |
4698648f VZ |
587 | // make sure that the memory will be freed at the program end |
588 | sm_handlers.DeleteContents(TRUE); | |
c7abc967 | 589 | |
01111366 RR |
590 | sm_handlers.Append( handler ); |
591 | } | |
592 | ||
593 | void wxImage::InsertHandler( wxImageHandler *handler ) | |
594 | { | |
4698648f VZ |
595 | // make sure that the memory will be freed at the program end |
596 | sm_handlers.DeleteContents(TRUE); | |
c7abc967 | 597 | |
01111366 RR |
598 | sm_handlers.Insert( handler ); |
599 | } | |
600 | ||
601 | bool wxImage::RemoveHandler( const wxString& name ) | |
602 | { | |
fd0eed64 RR |
603 | wxImageHandler *handler = FindHandler(name); |
604 | if (handler) | |
605 | { | |
606 | sm_handlers.DeleteObject(handler); | |
607 | return TRUE; | |
608 | } | |
609 | else | |
610 | return FALSE; | |
01111366 RR |
611 | } |
612 | ||
613 | wxImageHandler *wxImage::FindHandler( const wxString& name ) | |
614 | { | |
fd0eed64 RR |
615 | wxNode *node = sm_handlers.First(); |
616 | while (node) | |
617 | { | |
618 | wxImageHandler *handler = (wxImageHandler*)node->Data(); | |
ce3ed50d | 619 | if (handler->GetName().Cmp(name) == 0) return handler; |
c7abc967 | 620 | |
fd0eed64 RR |
621 | node = node->Next(); |
622 | } | |
623 | return (wxImageHandler *)NULL; | |
01111366 RR |
624 | } |
625 | ||
626 | wxImageHandler *wxImage::FindHandler( const wxString& extension, long bitmapType ) | |
627 | { | |
fd0eed64 RR |
628 | wxNode *node = sm_handlers.First(); |
629 | while (node) | |
630 | { | |
631 | wxImageHandler *handler = (wxImageHandler*)node->Data(); | |
ce3ed50d | 632 | if ( (handler->GetExtension().Cmp(extension) == 0) && |
fd0eed64 | 633 | (bitmapType == -1 || handler->GetType() == bitmapType) ) |
dbda9e86 | 634 | return handler; |
fd0eed64 RR |
635 | node = node->Next(); |
636 | } | |
637 | return (wxImageHandler*)NULL; | |
01111366 RR |
638 | } |
639 | ||
640 | wxImageHandler *wxImage::FindHandler( long bitmapType ) | |
641 | { | |
fd0eed64 RR |
642 | wxNode *node = sm_handlers.First(); |
643 | while (node) | |
644 | { | |
645 | wxImageHandler *handler = (wxImageHandler *)node->Data(); | |
646 | if (handler->GetType() == bitmapType) return handler; | |
647 | node = node->Next(); | |
648 | } | |
649 | return NULL; | |
650 | } | |
651 | ||
9e9ee68e VS |
652 | wxImageHandler *wxImage::FindHandlerMime( const wxString& mimetype ) |
653 | { | |
654 | wxNode *node = sm_handlers.First(); | |
655 | while (node) | |
656 | { | |
657 | wxImageHandler *handler = (wxImageHandler *)node->Data(); | |
658 | if (handler->GetMimeType().IsSameAs(mimetype, FALSE)) return handler; | |
659 | node = node->Next(); | |
660 | } | |
661 | return NULL; | |
662 | } | |
663 | ||
fd0eed64 RR |
664 | void wxImage::InitStandardHandlers() |
665 | { | |
deb2fec0 | 666 | AddHandler( new wxBMPHandler ); |
01111366 RR |
667 | } |
668 | ||
669 | void wxImage::CleanUpHandlers() | |
670 | { | |
fd0eed64 RR |
671 | wxNode *node = sm_handlers.First(); |
672 | while (node) | |
673 | { | |
674 | wxImageHandler *handler = (wxImageHandler *)node->Data(); | |
675 | wxNode *next = node->Next(); | |
676 | delete handler; | |
677 | delete node; | |
678 | node = next; | |
679 | } | |
01111366 RR |
680 | } |
681 | ||
682 | //----------------------------------------------------------------------------- | |
683 | // wxImageHandler | |
684 | //----------------------------------------------------------------------------- | |
685 | ||
63d963a1 | 686 | IMPLEMENT_ABSTRACT_CLASS(wxImageHandler,wxObject) |
01111366 | 687 | |
e02afc7a | 688 | #if wxUSE_STREAMS |
700ec454 | 689 | bool wxImageHandler::LoadFile( wxImage *WXUNUSED(image), wxInputStream& WXUNUSED(stream), bool WXUNUSED(verbose), int WXUNUSED(index) ) |
01111366 | 690 | { |
fd0eed64 | 691 | return FALSE; |
01111366 RR |
692 | } |
693 | ||
deb2fec0 | 694 | bool wxImageHandler::SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream), bool WXUNUSED(verbose) ) |
01111366 | 695 | { |
fd0eed64 | 696 | return FALSE; |
01111366 | 697 | } |
0828c087 | 698 | |
700ec454 RR |
699 | int wxImageHandler::GetImageCount( wxInputStream& WXUNUSED(stream) ) |
700 | { | |
701 | return 1; | |
702 | } | |
703 | ||
0828c087 VS |
704 | bool wxImageHandler::CanRead( const wxString& name ) |
705 | { | |
0828c087 VS |
706 | if (wxFileExists(name)) |
707 | { | |
708 | wxFileInputStream stream(name); | |
709 | return CanRead(stream); | |
710 | } | |
711 | ||
712 | else { | |
58c837a4 | 713 | wxLogError( _("Can't check image format of file '%s': file does not exist."), name.c_str() ); |
0828c087 VS |
714 | |
715 | return FALSE; | |
716 | } | |
68874acf | 717 | // return FALSE; |
0828c087 VS |
718 | } |
719 | ||
e02afc7a | 720 | #endif // wxUSE_STREAMS |
01111366 | 721 | |
01111366 | 722 | //----------------------------------------------------------------------------- |
ce4169a4 | 723 | // MSW conversion routines |
01111366 RR |
724 | //----------------------------------------------------------------------------- |
725 | ||
e3554471 JS |
726 | #ifdef __WXMSW__ |
727 | ||
728 | wxBitmap wxImage::ConvertToBitmap() const | |
729 | { | |
0655ad29 VZ |
730 | if ( !Ok() ) |
731 | return wxNullBitmap; | |
732 | ||
dbda9e86 | 733 | // sizeLimit is the MS upper limit for the DIB size |
48c12cb1 | 734 | #ifdef WIN32 |
c7abc967 | 735 | int sizeLimit = 1024*768*3; |
48c12cb1 PA |
736 | #else |
737 | int sizeLimit = 0x7fff ; | |
738 | #endif | |
c7abc967 | 739 | |
dbda9e86 | 740 | // width and height of the device-dependent bitmap |
bba6f3bd UA |
741 | int width = GetWidth(); |
742 | int bmpHeight = GetHeight(); | |
c7abc967 | 743 | |
dbda9e86 | 744 | // calc the number of bytes per scanline and padding |
bba6f3bd UA |
745 | int bytePerLine = width*3; |
746 | int sizeDWORD = sizeof( DWORD ); | |
bae41ce1 | 747 | int lineBoundary = bytePerLine % sizeDWORD; |
bba6f3bd | 748 | int padding = 0; |
bae41ce1 | 749 | if( lineBoundary > 0 ) |
bba6f3bd | 750 | { |
bae41ce1 | 751 | padding = sizeDWORD - lineBoundary; |
bba6f3bd UA |
752 | bytePerLine += padding; |
753 | } | |
dbda9e86 | 754 | // calc the number of DIBs and heights of DIBs |
bba6f3bd UA |
755 | int numDIB = 1; |
756 | int hRemain = 0; | |
757 | int height = sizeLimit/bytePerLine; | |
758 | if( height >= bmpHeight ) | |
c7abc967 | 759 | height = bmpHeight; |
bba6f3bd UA |
760 | else |
761 | { | |
bae41ce1 UA |
762 | numDIB = bmpHeight / height; |
763 | hRemain = bmpHeight % height; | |
dbda9e86 | 764 | if( hRemain >0 ) numDIB++; |
bba6f3bd | 765 | } |
c7abc967 | 766 | |
dbda9e86 | 767 | // set bitmap parameters |
bba6f3bd | 768 | wxBitmap bitmap; |
223d09f6 | 769 | wxCHECK_MSG( Ok(), bitmap, wxT("invalid image") ); |
bba6f3bd UA |
770 | bitmap.SetWidth( width ); |
771 | bitmap.SetHeight( bmpHeight ); | |
772 | bitmap.SetDepth( wxDisplayDepth() ); | |
c7abc967 | 773 | |
dbda9e86 | 774 | // create a DIB header |
bba6f3bd | 775 | int headersize = sizeof(BITMAPINFOHEADER); |
8f177c8e | 776 | BITMAPINFO *lpDIBh = (BITMAPINFO *) malloc( headersize ); |
223d09f6 | 777 | wxCHECK_MSG( lpDIBh, bitmap, wxT("could not allocate memory for DIB header") ); |
dbda9e86 | 778 | // Fill in the DIB header |
bba6f3bd UA |
779 | lpDIBh->bmiHeader.biSize = headersize; |
780 | lpDIBh->bmiHeader.biWidth = (DWORD)width; | |
781 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); | |
782 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; | |
dbda9e86 JS |
783 | // the general formula for biSizeImage: |
784 | // ( ( ( ((DWORD)width*24) +31 ) & ~31 ) >> 3 ) * height; | |
bba6f3bd UA |
785 | lpDIBh->bmiHeader.biPlanes = 1; |
786 | lpDIBh->bmiHeader.biBitCount = 24; | |
787 | lpDIBh->bmiHeader.biCompression = BI_RGB; | |
788 | lpDIBh->bmiHeader.biClrUsed = 0; | |
dbda9e86 | 789 | // These seem not really needed for our purpose here. |
bba6f3bd UA |
790 | lpDIBh->bmiHeader.biClrImportant = 0; |
791 | lpDIBh->bmiHeader.biXPelsPerMeter = 0; | |
792 | lpDIBh->bmiHeader.biYPelsPerMeter = 0; | |
dbda9e86 | 793 | // memory for DIB data |
bba6f3bd UA |
794 | unsigned char *lpBits; |
795 | lpBits = (unsigned char *)malloc( lpDIBh->bmiHeader.biSizeImage ); | |
796 | if( !lpBits ) | |
797 | { | |
223d09f6 | 798 | wxFAIL_MSG( wxT("could not allocate memory for DIB") ); |
bba6f3bd UA |
799 | free( lpDIBh ); |
800 | return bitmap; | |
801 | } | |
c7abc967 | 802 | |
dbda9e86 | 803 | // create and set the device-dependent bitmap |
bba6f3bd UA |
804 | HDC hdc = ::GetDC(NULL); |
805 | HDC memdc = ::CreateCompatibleDC( hdc ); | |
806 | HBITMAP hbitmap; | |
807 | hbitmap = ::CreateCompatibleBitmap( hdc, width, bmpHeight ); | |
c7abc967 VZ |
808 | ::SelectObject( memdc, hbitmap); |
809 | ||
dbda9e86 | 810 | // copy image data into DIB data and then into DDB (in a loop) |
bba6f3bd UA |
811 | unsigned char *data = GetData(); |
812 | int i, j, n; | |
813 | int origin = 0; | |
814 | unsigned char *ptdata = data; | |
815 | unsigned char *ptbits; | |
c7abc967 | 816 | |
bba6f3bd UA |
817 | for( n=0; n<numDIB; n++ ) |
818 | { | |
dbda9e86 JS |
819 | if( numDIB > 1 && n == numDIB-1 && hRemain > 0 ) |
820 | { | |
821 | // redefine height and size of the (possibly) last smaller DIB | |
822 | // memory is not reallocated | |
c7abc967 | 823 | height = hRemain; |
bba6f3bd UA |
824 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); |
825 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; | |
dbda9e86 | 826 | } |
bba6f3bd | 827 | ptbits = lpBits; |
c7abc967 | 828 | |
bba6f3bd UA |
829 | for( j=0; j<height; j++ ) |
830 | { | |
831 | for( i=0; i<width; i++ ) | |
832 | { | |
833 | *(ptbits++) = *(ptdata+2); | |
834 | *(ptbits++) = *(ptdata+1); | |
835 | *(ptbits++) = *(ptdata ); | |
836 | ptdata += 3; | |
dbda9e86 JS |
837 | } |
838 | for( i=0; i< padding; i++ ) *(ptbits++) = 0; | |
bba6f3bd UA |
839 | } |
840 | ::StretchDIBits( memdc, 0, origin, width, height,\ | |
dbda9e86 JS |
841 | 0, 0, width, height, lpBits, lpDIBh, DIB_RGB_COLORS, SRCCOPY); |
842 | origin += height; | |
843 | // if numDIB = 1, lines below can also be used | |
844 | // hbitmap = CreateDIBitmap( hdc, &(lpDIBh->bmiHeader), CBM_INIT, lpBits, lpDIBh, DIB_RGB_COLORS ); | |
845 | // The above line is equivalent to the following two lines. | |
846 | // hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); | |
847 | // ::SetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS); | |
848 | // or the following lines | |
849 | // hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); | |
850 | // HDC memdc = ::CreateCompatibleDC( hdc ); | |
c7abc967 | 851 | // ::SelectObject( memdc, hbitmap); |
dbda9e86 | 852 | // ::SetDIBitsToDevice( memdc, 0, 0, width, height, |
995612e2 | 853 | // 0, 0, 0, height, (void *)lpBits, lpDIBh, DIB_RGB_COLORS); |
c7abc967 VZ |
854 | // ::SelectObject( memdc, 0 ); |
855 | // ::DeleteDC( memdc ); | |
e3554471 | 856 | } |
bba6f3bd | 857 | bitmap.SetHBITMAP( (WXHBITMAP) hbitmap ); |
c7abc967 | 858 | |
dbda9e86 | 859 | // similarly, created an mono-bitmap for the possible mask |
bba6f3bd UA |
860 | if( HasMask() ) |
861 | { | |
862 | hbitmap = ::CreateBitmap( (WORD)width, (WORD)bmpHeight, 1, 1, NULL ); | |
0bafad0c | 863 | HGDIOBJ hbmpOld = ::SelectObject( memdc, hbitmap); |
c7abc967 | 864 | if( numDIB == 1 ) height = bmpHeight; |
bba6f3bd UA |
865 | else height = sizeLimit/bytePerLine; |
866 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); | |
867 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; | |
868 | origin = 0; | |
869 | unsigned char r = GetMaskRed(); | |
870 | unsigned char g = GetMaskGreen(); | |
871 | unsigned char b = GetMaskBlue(); | |
872 | unsigned char zero = 0, one = 255; | |
873 | ptdata = data; | |
874 | for( n=0; n<numDIB; n++ ) | |
875 | { | |
876 | if( numDIB > 1 && n == numDIB - 1 && hRemain > 0 ) | |
877 | { | |
dbda9e86 JS |
878 | // redefine height and size of the (possibly) last smaller DIB |
879 | // memory is not reallocated | |
c7abc967 | 880 | height = hRemain; |
bba6f3bd UA |
881 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); |
882 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; | |
dbda9e86 | 883 | } |
bba6f3bd UA |
884 | ptbits = lpBits; |
885 | for( int j=0; j<height; j++ ) | |
886 | { | |
dbda9e86 | 887 | for(i=0; i<width; i++ ) |
bba6f3bd | 888 | { |
8208e181 | 889 | // was causing a code gen bug in cw : if( ( cr !=r) || (cg!=g) || (cb!=b) ) |
ad30de59 GRG |
890 | unsigned char cr = (*(ptdata++)) ; |
891 | unsigned char cg = (*(ptdata++)) ; | |
892 | unsigned char cb = (*(ptdata++)) ; | |
06b466c7 | 893 | |
8208e181 | 894 | if( ( cr !=r) || (cg!=g) || (cb!=b) ) |
bba6f3bd UA |
895 | { |
896 | *(ptbits++) = one; | |
897 | *(ptbits++) = one; | |
898 | *(ptbits++) = one; | |
899 | } | |
900 | else | |
901 | { | |
902 | *(ptbits++) = zero; | |
903 | *(ptbits++) = zero; | |
904 | *(ptbits++) = zero; | |
905 | } | |
906 | } | |
dbda9e86 | 907 | for( i=0; i< padding; i++ ) *(ptbits++) = zero; |
bba6f3bd UA |
908 | } |
909 | ::StretchDIBits( memdc, 0, origin, width, height,\ | |
dbda9e86 JS |
910 | 0, 0, width, height, lpBits, lpDIBh, DIB_RGB_COLORS, SRCCOPY); |
911 | origin += height; | |
912 | } | |
913 | // create a wxMask object | |
bba6f3bd UA |
914 | wxMask *mask = new wxMask(); |
915 | mask->SetMaskBitmap( (WXHBITMAP) hbitmap ); | |
916 | bitmap.SetMask( mask ); | |
dbda9e86 JS |
917 | // It will be deleted when the wxBitmap object is deleted (as of 01/1999) |
918 | /* The following can also be used but is slow to run | |
bba6f3bd UA |
919 | wxColour colour( GetMaskRed(), GetMaskGreen(), GetMaskBlue()); |
920 | wxMask *mask = new wxMask( bitmap, colour ); | |
921 | bitmap.SetMask( mask ); | |
dbda9e86 | 922 | */ |
0bafad0c VZ |
923 | |
924 | ::SelectObject( memdc, hbmpOld ); | |
bba6f3bd | 925 | } |
c7abc967 VZ |
926 | |
927 | // free allocated resources | |
c7abc967 VZ |
928 | ::DeleteDC( memdc ); |
929 | ::ReleaseDC(NULL, hdc); | |
bba6f3bd UA |
930 | free(lpDIBh); |
931 | free(lpBits); | |
c7abc967 | 932 | |
6d167489 | 933 | #if WXWIN_COMPATIBILITY_2 |
dbda9e86 | 934 | // check the wxBitmap object |
6d167489 VZ |
935 | bitmap.GetBitmapData()->SetOk(); |
936 | #endif // WXWIN_COMPATIBILITY_2 | |
c7abc967 | 937 | |
bba6f3bd | 938 | return bitmap; |
e3554471 JS |
939 | } |
940 | ||
e3554471 JS |
941 | wxImage::wxImage( const wxBitmap &bitmap ) |
942 | { | |
dbda9e86 | 943 | // check the bitmap |
bba6f3bd UA |
944 | if( !bitmap.Ok() ) |
945 | { | |
223d09f6 | 946 | wxFAIL_MSG( wxT("invalid bitmap") ); |
bba6f3bd UA |
947 | return; |
948 | } | |
c7abc967 | 949 | |
dbda9e86 | 950 | // create an wxImage object |
bba6f3bd UA |
951 | int width = bitmap.GetWidth(); |
952 | int height = bitmap.GetHeight(); | |
c7abc967 | 953 | Create( width, height ); |
bba6f3bd UA |
954 | unsigned char *data = GetData(); |
955 | if( !data ) | |
956 | { | |
223d09f6 | 957 | wxFAIL_MSG( wxT("could not allocate data for image") ); |
bba6f3bd UA |
958 | return; |
959 | } | |
c7abc967 | 960 | |
dbda9e86 | 961 | // calc the number of bytes per scanline and padding in the DIB |
bba6f3bd UA |
962 | int bytePerLine = width*3; |
963 | int sizeDWORD = sizeof( DWORD ); | |
bae41ce1 | 964 | int lineBoundary = bytePerLine % sizeDWORD; |
bba6f3bd | 965 | int padding = 0; |
bae41ce1 | 966 | if( lineBoundary > 0 ) |
bba6f3bd | 967 | { |
bae41ce1 | 968 | padding = sizeDWORD - lineBoundary; |
bba6f3bd UA |
969 | bytePerLine += padding; |
970 | } | |
c7abc967 | 971 | |
dbda9e86 | 972 | // create a DIB header |
bba6f3bd | 973 | int headersize = sizeof(BITMAPINFOHEADER); |
8f177c8e | 974 | BITMAPINFO *lpDIBh = (BITMAPINFO *) malloc( headersize ); |
bba6f3bd UA |
975 | if( !lpDIBh ) |
976 | { | |
223d09f6 | 977 | wxFAIL_MSG( wxT("could not allocate data for DIB header") ); |
bba6f3bd UA |
978 | free( data ); |
979 | return; | |
980 | } | |
dbda9e86 | 981 | // Fill in the DIB header |
bba6f3bd UA |
982 | lpDIBh->bmiHeader.biSize = headersize; |
983 | lpDIBh->bmiHeader.biWidth = width; | |
984 | lpDIBh->bmiHeader.biHeight = -height; | |
985 | lpDIBh->bmiHeader.biSizeImage = bytePerLine * height; | |
986 | lpDIBh->bmiHeader.biPlanes = 1; | |
987 | lpDIBh->bmiHeader.biBitCount = 24; | |
988 | lpDIBh->bmiHeader.biCompression = BI_RGB; | |
989 | lpDIBh->bmiHeader.biClrUsed = 0; | |
dbda9e86 | 990 | // These seem not really needed for our purpose here. |
bba6f3bd UA |
991 | lpDIBh->bmiHeader.biClrImportant = 0; |
992 | lpDIBh->bmiHeader.biXPelsPerMeter = 0; | |
993 | lpDIBh->bmiHeader.biYPelsPerMeter = 0; | |
dbda9e86 | 994 | // memory for DIB data |
bba6f3bd UA |
995 | unsigned char *lpBits; |
996 | lpBits = (unsigned char *) malloc( lpDIBh->bmiHeader.biSizeImage ); | |
997 | if( !lpBits ) | |
e3554471 | 998 | { |
223d09f6 | 999 | wxFAIL_MSG( wxT("could not allocate data for DIB") ); |
bba6f3bd UA |
1000 | free( data ); |
1001 | free( lpDIBh ); | |
1002 | return; | |
4698648f | 1003 | } |
c7abc967 | 1004 | |
dbda9e86 | 1005 | // copy data from the device-dependent bitmap to the DIB |
bba6f3bd UA |
1006 | HDC hdc = ::GetDC(NULL); |
1007 | HBITMAP hbitmap; | |
1008 | hbitmap = (HBITMAP) bitmap.GetHBITMAP(); | |
1009 | ::GetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); | |
c7abc967 | 1010 | |
dbda9e86 | 1011 | // copy DIB data into the wxImage object |
bba6f3bd UA |
1012 | int i, j; |
1013 | unsigned char *ptdata = data; | |
1014 | unsigned char *ptbits = lpBits; | |
1015 | for( i=0; i<height; i++ ) | |
1016 | { | |
1017 | for( j=0; j<width; j++ ) | |
1018 | { | |
1019 | *(ptdata++) = *(ptbits+2); | |
1020 | *(ptdata++) = *(ptbits+1); | |
1021 | *(ptdata++) = *(ptbits ); | |
1022 | ptbits += 3; | |
dbda9e86 | 1023 | } |
bba6f3bd | 1024 | ptbits += padding; |
c7abc967 VZ |
1025 | } |
1026 | ||
dbda9e86 | 1027 | // similarly, set data according to the possible mask bitmap |
bba6f3bd UA |
1028 | if( bitmap.GetMask() && bitmap.GetMask()->GetMaskBitmap() ) |
1029 | { | |
1030 | hbitmap = (HBITMAP) bitmap.GetMask()->GetMaskBitmap(); | |
dbda9e86 | 1031 | // memory DC created, color set, data copied, and memory DC deleted |
bba6f3bd UA |
1032 | HDC memdc = ::CreateCompatibleDC( hdc ); |
1033 | ::SetTextColor( memdc, RGB( 0, 0, 0 ) ); | |
1034 | ::SetBkColor( memdc, RGB( 255, 255, 255 ) ); | |
1035 | ::GetDIBits( memdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); | |
c7abc967 | 1036 | ::DeleteDC( memdc ); |
dbda9e86 | 1037 | // background color set to RGB(16,16,16) in consistent with wxGTK |
c7abc967 | 1038 | unsigned char r=16, g=16, b=16; |
bba6f3bd UA |
1039 | ptdata = data; |
1040 | ptbits = lpBits; | |
1041 | for( i=0; i<height; i++ ) | |
1042 | { | |
1043 | for( j=0; j<width; j++ ) | |
1044 | { | |
1045 | if( *ptbits != 0 ) | |
dbda9e86 JS |
1046 | ptdata += 3; |
1047 | else | |
bba6f3bd UA |
1048 | { |
1049 | *(ptdata++) = r; | |
1050 | *(ptdata++) = g; | |
1051 | *(ptdata++) = b; | |
dbda9e86 | 1052 | } |
bba6f3bd UA |
1053 | ptbits += 3; |
1054 | } | |
1055 | ptbits += padding; | |
c7abc967 | 1056 | } |
bba6f3bd UA |
1057 | SetMaskColour( r, g, b ); |
1058 | SetMask( TRUE ); | |
c7abc967 | 1059 | } |
bba6f3bd UA |
1060 | else |
1061 | { | |
1062 | SetMask( FALSE ); | |
c7abc967 VZ |
1063 | } |
1064 | // free allocated resources | |
1065 | ::ReleaseDC(NULL, hdc); | |
bba6f3bd UA |
1066 | free(lpDIBh); |
1067 | free(lpBits); | |
e3554471 JS |
1068 | } |
1069 | ||
1070 | #endif | |
1071 | ||
7c74e7fe SC |
1072 | #ifdef __WXMAC__ |
1073 | ||
1074 | #include <PictUtils.h> | |
1075 | ||
1076 | extern CTabHandle wxMacCreateColorTable( int numColors ) ; | |
1077 | extern void wxMacDestroyColorTable( CTabHandle colors ) ; | |
1078 | extern void wxMacSetColorTableEntry( CTabHandle newColors , int index , int red , int green , int blue ) ; | |
1079 | extern GWorldPtr wxMacCreateGWorld( int height , int width , int depth ) ; | |
1080 | extern void wxMacDestroyGWorld( GWorldPtr gw ) ; | |
1081 | ||
1082 | wxBitmap wxImage::ConvertToBitmap() const | |
1083 | { | |
1084 | // width and height of the device-dependent bitmap | |
1085 | int width = GetWidth(); | |
1086 | int height = GetHeight(); | |
1087 | ||
1088 | // Create picture | |
97fdfcc9 | 1089 | |
7c74e7fe | 1090 | wxBitmap bitmap( width , height , wxDisplayDepth() ) ; |
97fdfcc9 | 1091 | |
7c74e7fe | 1092 | // Create mask |
97fdfcc9 | 1093 | |
7c74e7fe SC |
1094 | if (HasMask()) |
1095 | { | |
069d0f27 | 1096 | /* |
7c74e7fe | 1097 | unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height ); |
97fdfcc9 | 1098 | |
7c74e7fe | 1099 | mask_image = gdk_image_new_bitmap( gdk_visual_get_system(), mask_data, width, height ); |
97fdfcc9 | 1100 | |
7c74e7fe SC |
1101 | wxMask *mask = new wxMask(); |
1102 | mask->m_bitmap = gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, 1 ); | |
97fdfcc9 | 1103 | |
7c74e7fe SC |
1104 | bitmap.SetMask( mask ); |
1105 | */ | |
1106 | } | |
97fdfcc9 | 1107 | |
7c74e7fe | 1108 | // Render |
97fdfcc9 | 1109 | |
7c74e7fe SC |
1110 | int r_mask = GetMaskRed(); |
1111 | int g_mask = GetMaskGreen(); | |
1112 | int b_mask = GetMaskBlue(); | |
97fdfcc9 | 1113 | |
ad30de59 GRG |
1114 | CGrafPtr origPort ; |
1115 | GDHandle origDevice ; | |
06b466c7 | 1116 | |
ad30de59 GRG |
1117 | GetGWorld( &origPort , &origDevice ) ; |
1118 | SetGWorld( bitmap.GetHBITMAP() , NULL ) ; | |
7c74e7fe SC |
1119 | |
1120 | register unsigned char* data = GetData(); | |
97fdfcc9 | 1121 | |
7c74e7fe SC |
1122 | int index = 0; |
1123 | for (int y = 0; y < height; y++) | |
1124 | { | |
7c74e7fe SC |
1125 | for (int x = 0; x < width; x++) |
1126 | { | |
ad30de59 GRG |
1127 | unsigned char r = data[index++]; |
1128 | unsigned char g = data[index++]; | |
1129 | unsigned char b = data[index++]; | |
1130 | RGBColor color ; | |
1131 | color.red = ( r << 8 ) + r ; | |
1132 | color.green = ( g << 8 ) + g ; | |
1133 | color.blue = ( b << 8 ) + b ; | |
1134 | SetCPixel( x , y , &color ) ; | |
1135 | } | |
7c74e7fe SC |
1136 | } // for height |
1137 | ||
069d0f27 | 1138 | SetGWorld( origPort , origDevice ) ; |
97fdfcc9 | 1139 | |
8208e181 SC |
1140 | if ( HasMask() ) |
1141 | { | |
1142 | wxColour colour( GetMaskRed(), GetMaskGreen(), GetMaskBlue()); | |
1143 | wxMask *mask = new wxMask( bitmap, colour ); | |
1144 | bitmap.SetMask( mask ); | |
1145 | } | |
7c74e7fe | 1146 | return bitmap; |
97fdfcc9 | 1147 | |
7c74e7fe SC |
1148 | } |
1149 | ||
1150 | wxImage::wxImage( const wxBitmap &bitmap ) | |
1151 | { | |
1152 | // check the bitmap | |
1153 | if( !bitmap.Ok() ) | |
1154 | { | |
1155 | wxFAIL_MSG( "invalid bitmap" ); | |
1156 | return; | |
1157 | } | |
97fdfcc9 | 1158 | |
7c74e7fe SC |
1159 | // create an wxImage object |
1160 | int width = bitmap.GetWidth(); | |
1161 | int height = bitmap.GetHeight(); | |
97fdfcc9 | 1162 | Create( width, height ); |
7c74e7fe SC |
1163 | /* |
1164 | unsigned char *data = GetData(); | |
1165 | if( !data ) | |
1166 | { | |
1167 | wxFAIL_MSG( "could not allocate data for image" ); | |
1168 | return; | |
1169 | } | |
97fdfcc9 | 1170 | |
7c74e7fe SC |
1171 | // calc the number of bytes per scanline and padding in the DIB |
1172 | int bytePerLine = width*3; | |
1173 | int sizeDWORD = sizeof( DWORD ); | |
1174 | div_t lineBoundary = div( bytePerLine, sizeDWORD ); | |
1175 | int padding = 0; | |
97fdfcc9 | 1176 | if( lineBoundary.rem > 0 ) |
7c74e7fe SC |
1177 | { |
1178 | padding = sizeDWORD - lineBoundary.rem; | |
1179 | bytePerLine += padding; | |
1180 | } | |
97fdfcc9 | 1181 | |
7c74e7fe SC |
1182 | // create a DIB header |
1183 | int headersize = sizeof(BITMAPINFOHEADER); | |
1184 | LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize ); | |
1185 | if( !lpDIBh ) | |
1186 | { | |
1187 | wxFAIL_MSG( "could not allocate data for DIB header" ); | |
1188 | free( data ); | |
1189 | return; | |
1190 | } | |
1191 | // Fill in the DIB header | |
1192 | lpDIBh->bmiHeader.biSize = headersize; | |
1193 | lpDIBh->bmiHeader.biWidth = width; | |
1194 | lpDIBh->bmiHeader.biHeight = -height; | |
1195 | lpDIBh->bmiHeader.biSizeImage = bytePerLine * height; | |
1196 | lpDIBh->bmiHeader.biPlanes = 1; | |
1197 | lpDIBh->bmiHeader.biBitCount = 24; | |
1198 | lpDIBh->bmiHeader.biCompression = BI_RGB; | |
1199 | lpDIBh->bmiHeader.biClrUsed = 0; | |
1200 | // These seem not really needed for our purpose here. | |
1201 | lpDIBh->bmiHeader.biClrImportant = 0; | |
1202 | lpDIBh->bmiHeader.biXPelsPerMeter = 0; | |
1203 | lpDIBh->bmiHeader.biYPelsPerMeter = 0; | |
1204 | // memory for DIB data | |
1205 | unsigned char *lpBits; | |
1206 | lpBits = (unsigned char *) malloc( lpDIBh->bmiHeader.biSizeImage ); | |
1207 | if( !lpBits ) | |
1208 | { | |
1209 | wxFAIL_MSG( "could not allocate data for DIB" ); | |
1210 | free( data ); | |
1211 | free( lpDIBh ); | |
1212 | return; | |
1213 | } | |
97fdfcc9 | 1214 | |
7c74e7fe SC |
1215 | // copy data from the device-dependent bitmap to the DIB |
1216 | HDC hdc = ::GetDC(NULL); | |
1217 | HBITMAP hbitmap; | |
1218 | hbitmap = (HBITMAP) bitmap.GetHBITMAP(); | |
1219 | ::GetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); | |
97fdfcc9 | 1220 | |
7c74e7fe SC |
1221 | // copy DIB data into the wxImage object |
1222 | int i, j; | |
1223 | unsigned char *ptdata = data; | |
1224 | unsigned char *ptbits = lpBits; | |
1225 | for( i=0; i<height; i++ ) | |
1226 | { | |
1227 | for( j=0; j<width; j++ ) | |
1228 | { | |
1229 | *(ptdata++) = *(ptbits+2); | |
1230 | *(ptdata++) = *(ptbits+1); | |
1231 | *(ptdata++) = *(ptbits ); | |
1232 | ptbits += 3; | |
1233 | } | |
1234 | ptbits += padding; | |
06b466c7 | 1235 | } |
97fdfcc9 | 1236 | |
7c74e7fe SC |
1237 | // similarly, set data according to the possible mask bitmap |
1238 | if( bitmap.GetMask() && bitmap.GetMask()->GetMaskBitmap() ) | |
1239 | { | |
1240 | hbitmap = (HBITMAP) bitmap.GetMask()->GetMaskBitmap(); | |
1241 | // memory DC created, color set, data copied, and memory DC deleted | |
1242 | HDC memdc = ::CreateCompatibleDC( hdc ); | |
1243 | ::SetTextColor( memdc, RGB( 0, 0, 0 ) ); | |
1244 | ::SetBkColor( memdc, RGB( 255, 255, 255 ) ); | |
1245 | ::GetDIBits( memdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); | |
97fdfcc9 | 1246 | ::DeleteDC( memdc ); |
7c74e7fe | 1247 | // background color set to RGB(16,16,16) in consistent with wxGTK |
97fdfcc9 | 1248 | unsigned char r=16, g=16, b=16; |
7c74e7fe SC |
1249 | ptdata = data; |
1250 | ptbits = lpBits; | |
1251 | for( i=0; i<height; i++ ) | |
1252 | { | |
1253 | for( j=0; j<width; j++ ) | |
1254 | { | |
1255 | if( *ptbits != 0 ) | |
1256 | ptdata += 3; | |
1257 | else | |
1258 | { | |
1259 | *(ptdata++) = r; | |
1260 | *(ptdata++) = g; | |
1261 | *(ptdata++) = b; | |
1262 | } | |
1263 | ptbits += 3; | |
1264 | } | |
1265 | ptbits += padding; | |
97fdfcc9 | 1266 | } |
7c74e7fe SC |
1267 | SetMaskColour( r, g, b ); |
1268 | SetMask( TRUE ); | |
8f177c8e | 1269 | } |
7c74e7fe SC |
1270 | else |
1271 | { | |
1272 | SetMask( FALSE ); | |
8f177c8e | 1273 | } |
97fdfcc9 DW |
1274 | // free allocated resources |
1275 | ::ReleaseDC(NULL, hdc); | |
7c74e7fe SC |
1276 | free(lpDIBh); |
1277 | free(lpBits); | |
1278 | */ | |
1279 | } | |
1280 | ||
1281 | #endif | |
1282 | ||
ce4169a4 RR |
1283 | //----------------------------------------------------------------------------- |
1284 | // GTK conversion routines | |
1285 | //----------------------------------------------------------------------------- | |
1286 | ||
99c67c77 RR |
1287 | #ifdef __WXGTK__ |
1288 | ||
20e05ffb RR |
1289 | #include <gtk/gtk.h> |
1290 | #include <gdk/gdk.h> | |
1291 | #include <gdk/gdkx.h> | |
83624f79 | 1292 | |
ba0730de | 1293 | #if (GTK_MINOR_VERSION > 0) |
20e05ffb | 1294 | #include <gdk/gdkrgb.h> |
ba0730de RR |
1295 | #endif |
1296 | ||
d76fe38b RR |
1297 | extern GtkWidget *wxRootWindow; |
1298 | ||
82ea63e6 RR |
1299 | wxBitmap wxImage::ConvertToMonoBitmap( unsigned char red, unsigned char green, unsigned char blue ) |
1300 | { | |
1301 | wxBitmap bitmap; | |
1302 | ||
1303 | wxCHECK_MSG( Ok(), bitmap, wxT("invalid image") ); | |
1304 | ||
1305 | int width = GetWidth(); | |
1306 | int height = GetHeight(); | |
1307 | ||
1308 | bitmap.SetHeight( height ); | |
1309 | bitmap.SetWidth( width ); | |
1310 | ||
d76fe38b | 1311 | bitmap.SetBitmap( gdk_pixmap_new( wxRootWindow->window, width, height, 1 ) ); |
06b466c7 | 1312 | |
82ea63e6 RR |
1313 | bitmap.SetDepth( 1 ); |
1314 | ||
103aab26 RR |
1315 | GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window ); |
1316 | wxASSERT( visual ); | |
06b466c7 | 1317 | |
82ea63e6 RR |
1318 | // Create picture image |
1319 | ||
1320 | unsigned char *data_data = (unsigned char*)malloc( ((width >> 3)+8) * height ); | |
06b466c7 | 1321 | |
82ea63e6 | 1322 | GdkImage *data_image = |
103aab26 | 1323 | gdk_image_new_bitmap( visual, data_data, width, height ); |
82ea63e6 RR |
1324 | |
1325 | // Create mask image | |
1326 | ||
1327 | GdkImage *mask_image = (GdkImage*) NULL; | |
1328 | ||
1329 | if (HasMask()) | |
1330 | { | |
1331 | unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height ); | |
1332 | ||
103aab26 | 1333 | mask_image = gdk_image_new_bitmap( visual, mask_data, width, height ); |
82ea63e6 RR |
1334 | |
1335 | wxMask *mask = new wxMask(); | |
d76fe38b | 1336 | mask->m_bitmap = gdk_pixmap_new( wxRootWindow->window, width, height, 1 ); |
82ea63e6 RR |
1337 | |
1338 | bitmap.SetMask( mask ); | |
1339 | } | |
1340 | ||
1341 | int r_mask = GetMaskRed(); | |
1342 | int g_mask = GetMaskGreen(); | |
1343 | int b_mask = GetMaskBlue(); | |
1344 | ||
1345 | unsigned char* data = GetData(); | |
1346 | ||
1347 | int index = 0; | |
1348 | for (int y = 0; y < height; y++) | |
1349 | { | |
1350 | for (int x = 0; x < width; x++) | |
1351 | { | |
1352 | int r = data[index]; | |
1353 | index++; | |
1354 | int g = data[index]; | |
1355 | index++; | |
1356 | int b = data[index]; | |
1357 | index++; | |
1358 | ||
1359 | if (HasMask()) | |
1360 | { | |
1361 | if ((r == r_mask) && (b == b_mask) && (g == g_mask)) | |
1362 | gdk_image_put_pixel( mask_image, x, y, 1 ); | |
1363 | else | |
1364 | gdk_image_put_pixel( mask_image, x, y, 0 ); | |
1365 | } | |
06b466c7 | 1366 | |
82ea63e6 RR |
1367 | if ((r == red) && (b == blue) && (g == green)) |
1368 | gdk_image_put_pixel( data_image, x, y, 1 ); | |
06b466c7 | 1369 | else |
82ea63e6 RR |
1370 | gdk_image_put_pixel( data_image, x, y, 0 ); |
1371 | ||
1372 | } // for | |
1373 | } // for | |
1374 | ||
1375 | // Blit picture | |
1376 | ||
1377 | GdkGC *data_gc = gdk_gc_new( bitmap.GetBitmap() ); | |
1378 | ||
1379 | gdk_draw_image( bitmap.GetBitmap(), data_gc, data_image, 0, 0, 0, 0, width, height ); | |
1380 | ||
1381 | gdk_image_destroy( data_image ); | |
1382 | gdk_gc_unref( data_gc ); | |
1383 | ||
1384 | // Blit mask | |
1385 | ||
1386 | if (HasMask()) | |
1387 | { | |
1388 | GdkGC *mask_gc = gdk_gc_new( bitmap.GetMask()->GetBitmap() ); | |
1389 | ||
1390 | gdk_draw_image( bitmap.GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height ); | |
1391 | ||
1392 | gdk_image_destroy( mask_image ); | |
1393 | gdk_gc_unref( mask_gc ); | |
1394 | } | |
1395 | ||
1396 | return bitmap; | |
1397 | } | |
1398 | ||
1399 | ||
99c67c77 RR |
1400 | wxBitmap wxImage::ConvertToBitmap() const |
1401 | { | |
1402 | wxBitmap bitmap; | |
c7abc967 | 1403 | |
223d09f6 | 1404 | wxCHECK_MSG( Ok(), bitmap, wxT("invalid image") ); |
c7abc967 | 1405 | |
99c67c77 RR |
1406 | int width = GetWidth(); |
1407 | int height = GetHeight(); | |
c7abc967 | 1408 | |
99c67c77 RR |
1409 | bitmap.SetHeight( height ); |
1410 | bitmap.SetWidth( width ); | |
c7abc967 | 1411 | |
d76fe38b | 1412 | bitmap.SetPixmap( gdk_pixmap_new( wxRootWindow->window, width, height, -1 ) ); |
ba0730de | 1413 | |
103aab26 | 1414 | // Retrieve depth |
c7abc967 | 1415 | |
103aab26 RR |
1416 | GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window ); |
1417 | wxASSERT( visual ); | |
06b466c7 | 1418 | |
ba0730de | 1419 | int bpp = visual->depth; |
c7abc967 | 1420 | |
ba0730de | 1421 | bitmap.SetDepth( bpp ); |
c7abc967 | 1422 | |
ba0730de RR |
1423 | if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15; |
1424 | if (bpp < 8) bpp = 8; | |
c7abc967 | 1425 | |
ba0730de RR |
1426 | #if (GTK_MINOR_VERSION > 0) |
1427 | ||
1428 | if (!HasMask() && (bpp > 8)) | |
1429 | { | |
1430 | static bool s_hasInitialized = FALSE; | |
c7abc967 | 1431 | |
995612e2 VZ |
1432 | if (!s_hasInitialized) |
1433 | { | |
1434 | gdk_rgb_init(); | |
1435 | s_hasInitialized = TRUE; | |
1436 | } | |
c7abc967 | 1437 | |
ba0730de | 1438 | GdkGC *gc = gdk_gc_new( bitmap.GetPixmap() ); |
c7abc967 | 1439 | |
995612e2 VZ |
1440 | gdk_draw_rgb_image( bitmap.GetPixmap(), |
1441 | gc, | |
1442 | 0, 0, | |
1443 | width, height, | |
1444 | GDK_RGB_DITHER_NONE, | |
1445 | GetData(), | |
1446 | width*3 ); | |
c7abc967 | 1447 | |
ba0730de | 1448 | gdk_gc_unref( gc ); |
c7abc967 | 1449 | |
995612e2 | 1450 | return bitmap; |
ba0730de | 1451 | } |
c7abc967 | 1452 | |
ba0730de | 1453 | #endif |
c7abc967 | 1454 | |
ba0730de | 1455 | // Create picture image |
c7abc967 | 1456 | |
99c67c77 | 1457 | GdkImage *data_image = |
103aab26 | 1458 | gdk_image_new( GDK_IMAGE_FASTEST, visual, width, height ); |
c7abc967 | 1459 | |
ba0730de | 1460 | // Create mask image |
c7abc967 | 1461 | |
99c67c77 | 1462 | GdkImage *mask_image = (GdkImage*) NULL; |
c7abc967 | 1463 | |
99c67c77 RR |
1464 | if (HasMask()) |
1465 | { | |
1466 | unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height ); | |
c7abc967 | 1467 | |
103aab26 | 1468 | mask_image = gdk_image_new_bitmap( visual, mask_data, width, height ); |
c7abc967 | 1469 | |
4698648f | 1470 | wxMask *mask = new wxMask(); |
d76fe38b | 1471 | mask->m_bitmap = gdk_pixmap_new( wxRootWindow->window, width, height, 1 ); |
c7abc967 | 1472 | |
4698648f | 1473 | bitmap.SetMask( mask ); |
99c67c77 | 1474 | } |
c7abc967 | 1475 | |
99c67c77 | 1476 | // Render |
c7abc967 | 1477 | |
99c67c77 RR |
1478 | enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR }; |
1479 | byte_order b_o = RGB; | |
c7abc967 | 1480 | |
99c67c77 RR |
1481 | if (bpp >= 24) |
1482 | { | |
99c67c77 RR |
1483 | if ((visual->red_mask > visual->green_mask) && (visual->green_mask > visual->blue_mask)) b_o = RGB; |
1484 | else if ((visual->red_mask > visual->blue_mask) && (visual->blue_mask > visual->green_mask)) b_o = RGB; | |
1485 | else if ((visual->blue_mask > visual->red_mask) && (visual->red_mask > visual->green_mask)) b_o = BRG; | |
1486 | else if ((visual->blue_mask > visual->green_mask) && (visual->green_mask > visual->red_mask)) b_o = BGR; | |
1487 | else if ((visual->green_mask > visual->red_mask) && (visual->red_mask > visual->blue_mask)) b_o = GRB; | |
1488 | else if ((visual->green_mask > visual->blue_mask) && (visual->blue_mask > visual->red_mask)) b_o = GBR; | |
1489 | } | |
c7abc967 | 1490 | |
99c67c77 RR |
1491 | int r_mask = GetMaskRed(); |
1492 | int g_mask = GetMaskGreen(); | |
1493 | int b_mask = GetMaskBlue(); | |
c7abc967 | 1494 | |
99c67c77 | 1495 | unsigned char* data = GetData(); |
c7abc967 | 1496 | |
99c67c77 RR |
1497 | int index = 0; |
1498 | for (int y = 0; y < height; y++) | |
1499 | { | |
1500 | for (int x = 0; x < width; x++) | |
1501 | { | |
1502 | int r = data[index]; | |
4698648f | 1503 | index++; |
99c67c77 | 1504 | int g = data[index]; |
4698648f | 1505 | index++; |
99c67c77 | 1506 | int b = data[index]; |
4698648f | 1507 | index++; |
c7abc967 | 1508 | |
4698648f VZ |
1509 | if (HasMask()) |
1510 | { | |
1511 | if ((r == r_mask) && (b == b_mask) && (g == g_mask)) | |
1512 | gdk_image_put_pixel( mask_image, x, y, 1 ); | |
1513 | else | |
1514 | gdk_image_put_pixel( mask_image, x, y, 0 ); | |
1515 | } | |
c7abc967 | 1516 | |
4698648f VZ |
1517 | switch (bpp) |
1518 | { | |
dbda9e86 | 1519 | case 8: |
4698648f | 1520 | { |
f6fcbb63 | 1521 | int pixel = -1; |
4698648f VZ |
1522 | if (wxTheApp->m_colorCube) |
1523 | { | |
38274997 | 1524 | pixel = wxTheApp->m_colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ]; |
4698648f | 1525 | } |
f6fcbb63 | 1526 | else |
4698648f VZ |
1527 | { |
1528 | GdkColormap *cmap = gtk_widget_get_default_colormap(); | |
f6fcbb63 RR |
1529 | GdkColor *colors = cmap->colors; |
1530 | int max = 3 * (65536); | |
c7abc967 | 1531 | |
f6fcbb63 RR |
1532 | for (int i = 0; i < cmap->size; i++) |
1533 | { | |
1534 | int rdiff = (r << 8) - colors[i].red; | |
1535 | int gdiff = (g << 8) - colors[i].green; | |
1536 | int bdiff = (b << 8) - colors[i].blue; | |
1537 | int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff); | |
1538 | if (sum < max) { pixel = i; max = sum; } | |
4698648f | 1539 | } |
99c67c77 | 1540 | } |
c7abc967 | 1541 | |
4698648f | 1542 | gdk_image_put_pixel( data_image, x, y, pixel ); |
c7abc967 | 1543 | |
4698648f VZ |
1544 | break; |
1545 | } | |
dbda9e86 | 1546 | case 15: |
4698648f VZ |
1547 | { |
1548 | guint32 pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); | |
1549 | gdk_image_put_pixel( data_image, x, y, pixel ); | |
1550 | break; | |
1551 | } | |
dbda9e86 | 1552 | case 16: |
4698648f VZ |
1553 | { |
1554 | guint32 pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); | |
1555 | gdk_image_put_pixel( data_image, x, y, pixel ); | |
1556 | break; | |
1557 | } | |
dbda9e86 JS |
1558 | case 32: |
1559 | case 24: | |
4698648f VZ |
1560 | { |
1561 | guint32 pixel = 0; | |
1562 | switch (b_o) | |
1563 | { | |
dbda9e86 JS |
1564 | case RGB: pixel = (r << 16) | (g << 8) | b; break; |
1565 | case RBG: pixel = (r << 16) | (b << 8) | g; break; | |
1566 | case BRG: pixel = (b << 16) | (r << 8) | g; break; | |
1567 | case BGR: pixel = (b << 16) | (g << 8) | r; break; | |
1568 | case GRB: pixel = (g << 16) | (r << 8) | b; break; | |
1569 | case GBR: pixel = (g << 16) | (b << 8) | r; break; | |
4698648f VZ |
1570 | } |
1571 | gdk_image_put_pixel( data_image, x, y, pixel ); | |
1572 | } | |
dbda9e86 | 1573 | default: break; |
4698648f | 1574 | } |
99c67c77 RR |
1575 | } // for |
1576 | } // for | |
c7abc967 | 1577 | |
99c67c77 | 1578 | // Blit picture |
c7abc967 | 1579 | |
99c67c77 | 1580 | GdkGC *data_gc = gdk_gc_new( bitmap.GetPixmap() ); |
c7abc967 | 1581 | |
99c67c77 | 1582 | gdk_draw_image( bitmap.GetPixmap(), data_gc, data_image, 0, 0, 0, 0, width, height ); |
c7abc967 | 1583 | |
99c67c77 RR |
1584 | gdk_image_destroy( data_image ); |
1585 | gdk_gc_unref( data_gc ); | |
c7abc967 | 1586 | |
99c67c77 | 1587 | // Blit mask |
c7abc967 | 1588 | |
99c67c77 RR |
1589 | if (HasMask()) |
1590 | { | |
1591 | GdkGC *mask_gc = gdk_gc_new( bitmap.GetMask()->GetBitmap() ); | |
c7abc967 | 1592 | |
99c67c77 | 1593 | gdk_draw_image( bitmap.GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height ); |
c7abc967 | 1594 | |
99c67c77 RR |
1595 | gdk_image_destroy( mask_image ); |
1596 | gdk_gc_unref( mask_gc ); | |
1597 | } | |
c7abc967 | 1598 | |
99c67c77 RR |
1599 | return bitmap; |
1600 | } | |
1601 | ||
1602 | wxImage::wxImage( const wxBitmap &bitmap ) | |
1603 | { | |
223d09f6 | 1604 | wxCHECK_RET( bitmap.Ok(), wxT("invalid bitmap") ); |
c7abc967 | 1605 | |
c6d73ef6 RR |
1606 | GdkImage *gdk_image = (GdkImage*) NULL; |
1607 | if (bitmap.GetPixmap()) | |
1608 | { | |
1609 | gdk_image = gdk_image_get( bitmap.GetPixmap(), | |
1610 | 0, 0, | |
1611 | bitmap.GetWidth(), bitmap.GetHeight() ); | |
1612 | } else | |
1613 | if (bitmap.GetBitmap()) | |
1614 | { | |
1615 | gdk_image = gdk_image_get( bitmap.GetBitmap(), | |
1616 | 0, 0, | |
1617 | bitmap.GetWidth(), bitmap.GetHeight() ); | |
1618 | } else | |
1619 | { | |
1620 | wxFAIL_MSG( wxT("Ill-formed bitmap") ); | |
1621 | } | |
c7abc967 | 1622 | |
223d09f6 | 1623 | wxCHECK_RET( gdk_image, wxT("couldn't create image") ); |
c7abc967 | 1624 | |
99c67c77 RR |
1625 | Create( bitmap.GetWidth(), bitmap.GetHeight() ); |
1626 | char unsigned *data = GetData(); | |
c7abc967 | 1627 | |
99c67c77 RR |
1628 | if (!data) |
1629 | { | |
1630 | gdk_image_destroy( gdk_image ); | |
223d09f6 | 1631 | wxFAIL_MSG( wxT("couldn't create image") ); |
4698648f | 1632 | return; |
99c67c77 | 1633 | } |
c7abc967 | 1634 | |
99c67c77 RR |
1635 | GdkImage *gdk_image_mask = (GdkImage*) NULL; |
1636 | if (bitmap.GetMask()) | |
1637 | { | |
1638 | gdk_image_mask = gdk_image_get( bitmap.GetMask()->GetBitmap(), | |
dbda9e86 JS |
1639 | 0, 0, |
1640 | bitmap.GetWidth(), bitmap.GetHeight() ); | |
c7abc967 | 1641 | |
4698648f | 1642 | SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable |
99c67c77 | 1643 | } |
c7abc967 | 1644 | |
be25e480 | 1645 | int bpp = -1; |
cf3da716 RR |
1646 | int red_shift_right = 0; |
1647 | int green_shift_right = 0; | |
1648 | int blue_shift_right = 0; | |
1649 | int red_shift_left = 0; | |
1650 | int green_shift_left = 0; | |
1651 | int blue_shift_left = 0; | |
1652 | bool use_shift = FALSE; | |
06b466c7 | 1653 | |
c6d73ef6 | 1654 | if (bitmap.GetPixmap()) |
be25e480 RR |
1655 | { |
1656 | GdkVisual *visual = gdk_window_get_visual( bitmap.GetPixmap() ); | |
c6d73ef6 | 1657 | |
d76fe38b | 1658 | if (visual == NULL) visual = gdk_window_get_visual( wxRootWindow->window ); |
be25e480 | 1659 | bpp = visual->depth; |
cf3da716 RR |
1660 | if (bpp == 16) bpp = visual->red_prec + visual->green_prec + visual->blue_prec; |
1661 | red_shift_right = visual->red_shift; | |
1662 | red_shift_left = 8-visual->red_prec; | |
1663 | green_shift_right = visual->green_shift; | |
1664 | green_shift_left = 8-visual->green_prec; | |
1665 | blue_shift_right = visual->blue_shift; | |
1666 | blue_shift_left = 8-visual->blue_prec; | |
06b466c7 | 1667 | |
cf3da716 | 1668 | use_shift = (visual->type == GDK_VISUAL_TRUE_COLOR) || (visual->type == GDK_VISUAL_DIRECT_COLOR); |
be25e480 RR |
1669 | } |
1670 | if (bitmap.GetBitmap()) | |
1671 | { | |
1672 | bpp = 1; | |
1673 | } | |
c7abc967 | 1674 | |
06b466c7 | 1675 | |
99c67c77 | 1676 | GdkColormap *cmap = gtk_widget_get_default_colormap(); |
c7abc967 | 1677 | |
99c67c77 RR |
1678 | long pos = 0; |
1679 | for (int j = 0; j < bitmap.GetHeight(); j++) | |
1680 | { | |
1681 | for (int i = 0; i < bitmap.GetWidth(); i++) | |
1682 | { | |
cf3da716 | 1683 | wxUint32 pixel = gdk_image_get_pixel( gdk_image, i, j ); |
069d0f27 VZ |
1684 | if (bpp == 1) |
1685 | { | |
1686 | if (pixel == 0) | |
1687 | { | |
cf3da716 | 1688 | data[pos] = 0; |
be25e480 RR |
1689 | data[pos+1] = 0; |
1690 | data[pos+2] = 0; | |
069d0f27 VZ |
1691 | } |
1692 | else | |
1693 | { | |
cf3da716 | 1694 | data[pos] = 255; |
be25e480 RR |
1695 | data[pos+1] = 255; |
1696 | data[pos+2] = 255; | |
069d0f27 | 1697 | } |
cf3da716 RR |
1698 | } |
1699 | else if (use_shift) | |
99c67c77 | 1700 | { |
cf3da716 RR |
1701 | data[pos] = (pixel >> red_shift_right) << red_shift_left; |
1702 | data[pos+1] = (pixel >> green_shift_right) << green_shift_left; | |
1703 | data[pos+2] = (pixel >> blue_shift_right) << blue_shift_left; | |
06b466c7 | 1704 | } |
cf3da716 | 1705 | else if (cmap->colors) |
99c67c77 | 1706 | { |
cf3da716 RR |
1707 | data[pos] = cmap->colors[pixel].red >> 8; |
1708 | data[pos+1] = cmap->colors[pixel].green >> 8; | |
1709 | data[pos+2] = cmap->colors[pixel].blue >> 8; | |
06b466c7 | 1710 | } |
cf3da716 | 1711 | else |
99c67c77 | 1712 | { |
cf3da716 | 1713 | wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") ); |
06b466c7 | 1714 | } |
c7abc967 | 1715 | |
4698648f VZ |
1716 | if (gdk_image_mask) |
1717 | { | |
1718 | int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j ); | |
1719 | if (mask_pixel == 0) | |
1720 | { | |
99c67c77 RR |
1721 | data[pos] = 16; |
1722 | data[pos+1] = 16; | |
1723 | data[pos+2] = 16; | |
dbda9e86 | 1724 | } |
4698648f | 1725 | } |
c7abc967 | 1726 | |
99c67c77 RR |
1727 | pos += 3; |
1728 | } | |
1729 | } | |
c7abc967 | 1730 | |
99c67c77 RR |
1731 | gdk_image_destroy( gdk_image ); |
1732 | if (gdk_image_mask) gdk_image_destroy( gdk_image_mask ); | |
1733 | } | |
1734 | ||
1735 | #endif | |
ee4c6942 | 1736 | |
ce4169a4 RR |
1737 | //----------------------------------------------------------------------------- |
1738 | // Motif conversion routines | |
1739 | //----------------------------------------------------------------------------- | |
1740 | ||
ee4c6942 | 1741 | #ifdef __WXMOTIF__ |
338dd992 JJ |
1742 | #ifdef __VMS__ |
1743 | #pragma message disable nosimpint | |
1744 | #endif | |
b75867a6 | 1745 | #include <Xm/Xm.h> |
338dd992 JJ |
1746 | #ifdef __VMS__ |
1747 | #pragma message enable nosimpint | |
1748 | #endif | |
b75867a6 | 1749 | #include "wx/utils.h" |
38274997 | 1750 | #include <math.h> |
b75867a6 | 1751 | |
88195b2b JS |
1752 | /* |
1753 | ||
1754 | Date: Wed, 05 Jan 2000 11:45:40 +0100 | |
1755 | From: Frits Boel <boel@niob.knaw.nl> | |
1756 | To: julian.smart@ukonline.co.uk | |
1757 | Subject: Patch for Motif ConvertToBitmap | |
1758 | ||
1759 | Hi Julian, | |
1760 | ||
1761 | I've been working on a wxWin application for image processing. From the | |
1762 | beginning, I was surprised by the (lack of) speed of ConvertToBitmap, | |
1763 | till I looked in the source code of image.cpp. I saw that converting a | |
1764 | wxImage to a bitmap with 8-bit pixels is done with comparing every pixel | |
1765 | to the 256 colors of the palet. A very time-consuming piece of code! | |
1766 | ||
1767 | Because I wanted a faster application, I've made a 'patch' for this. In | |
1768 | short: every pixel of the image is compared to a sorted list with | |
1769 | colors. If the color is found in the list, the palette entry is | |
1770 | returned; if the color is not found, the color palette is searched and | |
1771 | then the palette entry is returned and the color added to the sorted | |
1772 | list. | |
1773 | ||
1774 | Maybe there is another method for this, namely changing the palette | |
1775 | itself (if the colors are known, as is the case with tiffs with a | |
1776 | colormap). I did not look at this, maybe someone else did? | |
1777 | ||
1778 | The code of the patch is attached, have a look on it, and maybe you will | |
1779 | ship it with the next release of wxMotif? | |
1780 | ||
1781 | Regards, | |
1782 | ||
1783 | Frits Boel | |
1784 | Software engineer at Hubrecht Laboratory, The Netherlands. | |
1785 | ||
1786 | */ | |
1787 | ||
1788 | class wxSearchColor | |
1789 | { | |
1790 | public: | |
1791 | wxSearchColor( void ); | |
1792 | wxSearchColor( int size, XColor *colors ); | |
1793 | ~wxSearchColor( void ); | |
1794 | ||
1795 | int SearchColor( int r, int g, int b ); | |
1796 | private: | |
1797 | int AddColor( unsigned int value, int pos ); | |
1798 | ||
1799 | int size; | |
1800 | XColor *colors; | |
1801 | unsigned int *color; | |
1802 | int *entry; | |
1803 | ||
1804 | int bottom; | |
1805 | int top; | |
1806 | }; | |
1807 | ||
1808 | wxSearchColor::wxSearchColor( void ) | |
1809 | { | |
069d0f27 VZ |
1810 | size = 0; |
1811 | colors = (XColor*) NULL; | |
1812 | color = (unsigned int *) NULL; | |
1813 | entry = (int*) NULL; | |
88195b2b | 1814 | |
069d0f27 VZ |
1815 | bottom = 0; |
1816 | top = 0; | |
88195b2b JS |
1817 | } |
1818 | ||
069d0f27 | 1819 | wxSearchColor::wxSearchColor( int size_, XColor *colors_ ) |
88195b2b JS |
1820 | { |
1821 | int i; | |
069d0f27 VZ |
1822 | size = size_; |
1823 | colors = colors_; | |
1824 | color = new unsigned int[size]; | |
1825 | entry = new int [size]; | |
88195b2b | 1826 | |
069d0f27 VZ |
1827 | for (i = 0; i < size; i++ ) { |
1828 | entry[i] = -1; | |
1829 | } | |
88195b2b | 1830 | |
069d0f27 | 1831 | bottom = top = ( size >> 1 ); |
88195b2b JS |
1832 | } |
1833 | ||
1834 | wxSearchColor::~wxSearchColor( void ) | |
1835 | { | |
069d0f27 VZ |
1836 | if ( color ) delete color; |
1837 | if ( entry ) delete entry; | |
88195b2b JS |
1838 | } |
1839 | ||
1840 | int wxSearchColor::SearchColor( int r, int g, int b ) | |
1841 | { | |
1842 | unsigned int value = ( ( ( r * 256 ) + g ) * 256 ) + b; | |
069d0f27 VZ |
1843 | int begin = bottom; |
1844 | int end = top; | |
88195b2b JS |
1845 | int middle; |
1846 | ||
1847 | while ( begin <= end ) { | |
1848 | ||
1849 | middle = ( begin + end ) >> 1; | |
1850 | ||
069d0f27 VZ |
1851 | if ( value == color[middle] ) { |
1852 | return( entry[middle] ); | |
1853 | } else if ( value < color[middle] ) { | |
88195b2b JS |
1854 | end = middle - 1; |
1855 | } else { | |
1856 | begin = middle + 1; | |
1857 | } | |
1858 | ||
1859 | } | |
1860 | ||
1861 | return AddColor( value, middle ); | |
1862 | } | |
1863 | ||
1864 | int wxSearchColor::AddColor( unsigned int value, int pos ) | |
1865 | { | |
1866 | int i; | |
1867 | int pixel = -1; | |
1868 | int max = 3 * (65536); | |
1869 | for ( i = 0; i < 256; i++ ) { | |
1870 | int rdiff = ((value >> 8) & 0xFF00 ) - colors[i].red; | |
1871 | int gdiff = ((value ) & 0xFF00 ) - colors[i].green; | |
1872 | int bdiff = ((value << 8) & 0xFF00 ) - colors[i].blue; | |
1873 | int sum = abs (rdiff) + abs (gdiff) + abs (bdiff); | |
1874 | if (sum < max) { pixel = i; max = sum; } | |
1875 | } | |
1876 | ||
069d0f27 VZ |
1877 | if ( entry[pos] < 0 ) { |
1878 | color[pos] = value; | |
1879 | entry[pos] = pixel; | |
1880 | } else if ( value < color[pos] ) { | |
88195b2b | 1881 | |
069d0f27 VZ |
1882 | if ( bottom > 0 ) { |
1883 | for ( i = bottom; i < pos; i++ ) { | |
1884 | color[i-1] = color[i]; | |
1885 | entry[i-1] = entry[i]; | |
88195b2b | 1886 | } |
069d0f27 VZ |
1887 | bottom--; |
1888 | color[pos-1] = value; | |
1889 | entry[pos-1] = pixel; | |
1890 | } else if ( top < size-1 ) { | |
1891 | for ( i = top; i >= pos; i-- ) { | |
1892 | color[i+1] = color[i]; | |
1893 | entry[i+1] = entry[i]; | |
88195b2b | 1894 | } |
069d0f27 VZ |
1895 | top++; |
1896 | color[pos] = value; | |
1897 | entry[pos] = pixel; | |
88195b2b JS |
1898 | } |
1899 | ||
1900 | } else { | |
1901 | ||
069d0f27 VZ |
1902 | if ( top < size-1 ) { |
1903 | for ( i = top; i > pos; i-- ) { | |
1904 | color[i+1] = color[i]; | |
1905 | entry[i+1] = entry[i]; | |
88195b2b | 1906 | } |
069d0f27 VZ |
1907 | top++; |
1908 | color[pos+1] = value; | |
1909 | entry[pos+1] = pixel; | |
1910 | } else if ( bottom > 0 ) { | |
1911 | for ( i = bottom; i < pos; i++ ) { | |
1912 | color[i-1] = color[i]; | |
1913 | entry[i-1] = entry[i]; | |
88195b2b | 1914 | } |
069d0f27 VZ |
1915 | bottom--; |
1916 | color[pos] = value; | |
1917 | entry[pos] = pixel; | |
88195b2b JS |
1918 | } |
1919 | ||
1920 | } | |
1921 | ||
1922 | return( pixel ); | |
1923 | } | |
1924 | ||
ee4c6942 JS |
1925 | wxBitmap wxImage::ConvertToBitmap() const |
1926 | { | |
b75867a6 | 1927 | wxBitmap bitmap; |
c7abc967 | 1928 | |
223d09f6 | 1929 | wxCHECK_MSG( Ok(), bitmap, wxT("invalid image") ); |
a91b47e8 | 1930 | |
b75867a6 RR |
1931 | int width = GetWidth(); |
1932 | int height = GetHeight(); | |
c7abc967 | 1933 | |
b75867a6 RR |
1934 | bitmap.SetHeight( height ); |
1935 | bitmap.SetWidth( width ); | |
c7abc967 | 1936 | |
b75867a6 RR |
1937 | Display *dpy = (Display*) wxGetDisplay(); |
1938 | Visual* vis = DefaultVisual( dpy, DefaultScreen( dpy ) ); | |
1939 | int bpp = DefaultDepth( dpy, DefaultScreen( dpy ) ); | |
c7abc967 | 1940 | |
b75867a6 | 1941 | // Create image |
c7abc967 | 1942 | |
b75867a6 | 1943 | XImage *data_image = XCreateImage( dpy, vis, bpp, ZPixmap, 0, 0, width, height, 32, 0 ); |
a91b47e8 | 1944 | data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height ); |
c7abc967 | 1945 | |
b75867a6 | 1946 | bitmap.Create( width, height, bpp ); |
a91b47e8 | 1947 | |
b75867a6 | 1948 | // Create mask |
c7abc967 | 1949 | |
68be9f09 JS |
1950 | XImage *mask_image = (XImage*) NULL; |
1951 | if (HasMask()) | |
1952 | { | |
1953 | mask_image = XCreateImage( dpy, vis, 1, ZPixmap, 0, 0, width, height, 32, 0 ); | |
1954 | mask_image->data = (char*) malloc( mask_image->bytes_per_line * mask_image->height ); | |
1955 | } | |
c7abc967 | 1956 | |
b75867a6 | 1957 | // Retrieve depth info |
c7abc967 | 1958 | |
b75867a6 RR |
1959 | XVisualInfo vinfo_template; |
1960 | XVisualInfo *vi; | |
c7abc967 | 1961 | |
b75867a6 RR |
1962 | vinfo_template.visual = vis; |
1963 | vinfo_template.visualid = XVisualIDFromVisual( vis ); | |
1964 | vinfo_template.depth = bpp; | |
1965 | int nitem = 0; | |
c7abc967 | 1966 | |
b75867a6 | 1967 | vi = XGetVisualInfo( dpy, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem ); |
c7abc967 | 1968 | |
223d09f6 | 1969 | wxCHECK_MSG( vi, wxNullBitmap, wxT("no visual") ); |
c7abc967 | 1970 | |
38274997 | 1971 | XFree( vi ); |
a91b47e8 | 1972 | |
b75867a6 RR |
1973 | if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15; |
1974 | if (bpp < 8) bpp = 8; | |
c7abc967 | 1975 | |
b75867a6 | 1976 | // Render |
c7abc967 | 1977 | |
b75867a6 RR |
1978 | enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR }; |
1979 | byte_order b_o = RGB; | |
c7abc967 | 1980 | |
b75867a6 RR |
1981 | if (bpp >= 24) |
1982 | { | |
1983 | if ((vi->red_mask > vi->green_mask) && (vi->green_mask > vi->blue_mask)) b_o = RGB; | |
1984 | else if ((vi->red_mask > vi->blue_mask) && (vi->blue_mask > vi->green_mask)) b_o = RGB; | |
1985 | else if ((vi->blue_mask > vi->red_mask) && (vi->red_mask > vi->green_mask)) b_o = BRG; | |
1986 | else if ((vi->blue_mask > vi->green_mask) && (vi->green_mask > vi->red_mask)) b_o = BGR; | |
1987 | else if ((vi->green_mask > vi->red_mask) && (vi->red_mask > vi->blue_mask)) b_o = GRB; | |
1988 | else if ((vi->green_mask > vi->blue_mask) && (vi->blue_mask > vi->red_mask)) b_o = GBR; | |
1989 | } | |
c7abc967 | 1990 | |
b75867a6 RR |
1991 | int r_mask = GetMaskRed(); |
1992 | int g_mask = GetMaskGreen(); | |
1993 | int b_mask = GetMaskBlue(); | |
c7abc967 | 1994 | |
38274997 RR |
1995 | XColor colors[256]; |
1996 | if (bpp == 8) | |
1997 | { | |
dbda9e86 | 1998 | Colormap cmap = (Colormap) wxTheApp->GetMainColormap( dpy ); |
c7abc967 | 1999 | |
38274997 | 2000 | for (int i = 0; i < 256; i++) colors[i].pixel = i; |
dbda9e86 | 2001 | XQueryColors( dpy, cmap, colors, 256 ); |
38274997 | 2002 | } |
c7abc967 | 2003 | |
88195b2b | 2004 | wxSearchColor scolor( 256, colors ); |
b75867a6 | 2005 | unsigned char* data = GetData(); |
c7abc967 | 2006 | |
68be9f09 JS |
2007 | bool hasMask = HasMask(); |
2008 | ||
b75867a6 RR |
2009 | int index = 0; |
2010 | for (int y = 0; y < height; y++) | |
2011 | { | |
2012 | for (int x = 0; x < width; x++) | |
2013 | { | |
2014 | int r = data[index]; | |
dbda9e86 | 2015 | index++; |
b75867a6 | 2016 | int g = data[index]; |
dbda9e86 | 2017 | index++; |
b75867a6 | 2018 | int b = data[index]; |
dbda9e86 | 2019 | index++; |
c7abc967 | 2020 | |
68be9f09 | 2021 | if (hasMask) |
dbda9e86 | 2022 | { |
68be9f09 JS |
2023 | if ((r == r_mask) && (b == b_mask) && (g == g_mask)) |
2024 | XPutPixel( mask_image, x, y, 0 ); | |
2025 | else | |
2026 | XPutPixel( mask_image, x, y, 1 ); | |
dbda9e86 | 2027 | } |
c7abc967 | 2028 | |
dbda9e86 JS |
2029 | switch (bpp) |
2030 | { | |
2031 | case 8: | |
2032 | { | |
88195b2b | 2033 | #if 0 // Old, slower code |
b75867a6 | 2034 | int pixel = -1; |
dbda9e86 JS |
2035 | /* |
2036 | if (wxTheApp->m_colorCube) | |
2037 | { | |
2038 | pixel = wxTheApp->m_colorCube | |
c7abc967 VZ |
2039 | [ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ]; |
2040 | } | |
b75867a6 | 2041 | else |
dbda9e86 JS |
2042 | { |
2043 | */ | |
2044 | int max = 3 * (65536); | |
2045 | for (int i = 0; i < 256; i++) | |
2046 | { | |
2047 | int rdiff = (r << 8) - colors[i].red; | |
2048 | int gdiff = (g << 8) - colors[i].green; | |
2049 | int bdiff = (b << 8) - colors[i].blue; | |
2050 | int sum = abs (rdiff) + abs (gdiff) + abs (bdiff); | |
2051 | if (sum < max) { pixel = i; max = sum; } | |
2052 | } | |
2053 | /* | |
2054 | } | |
2055 | */ | |
88195b2b JS |
2056 | #endif |
2057 | ||
069d0f27 VZ |
2058 | // And this is all to get the 'right' color... |
2059 | int pixel = scolor.SearchColor( r, g, b ); | |
dbda9e86 JS |
2060 | XPutPixel( data_image, x, y, pixel ); |
2061 | break; | |
2062 | } | |
2063 | case 15: | |
2064 | { | |
2065 | int pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); | |
2066 | XPutPixel( data_image, x, y, pixel ); | |
2067 | break; | |
2068 | } | |
2069 | case 16: | |
2070 | { | |
2071 | int pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); | |
2072 | XPutPixel( data_image, x, y, pixel ); | |
2073 | break; | |
2074 | } | |
2075 | case 32: | |
2076 | case 24: | |
2077 | { | |
2078 | int pixel = 0; | |
2079 | switch (b_o) | |
2080 | { | |
2081 | case RGB: pixel = (r << 16) | (g << 8) | b; break; | |
2082 | case RBG: pixel = (r << 16) | (b << 8) | g; break; | |
2083 | case BRG: pixel = (b << 16) | (r << 8) | g; break; | |
2084 | case BGR: pixel = (b << 16) | (g << 8) | r; break; | |
2085 | case GRB: pixel = (g << 16) | (r << 8) | b; break; | |
2086 | case GBR: pixel = (g << 16) | (b << 8) | r; break; | |
2087 | } | |
2088 | XPutPixel( data_image, x, y, pixel ); | |
2089 | } | |
2090 | default: break; | |
2091 | } | |
b75867a6 RR |
2092 | } // for |
2093 | } // for | |
c7abc967 | 2094 | |
b75867a6 | 2095 | // Blit picture |
c7abc967 | 2096 | |
b75867a6 RR |
2097 | XGCValues gcvalues; |
2098 | gcvalues.foreground = BlackPixel( dpy, DefaultScreen( dpy ) ); | |
2099 | GC gc = XCreateGC( dpy, RootWindow ( dpy, DefaultScreen(dpy) ), GCForeground, &gcvalues ); | |
2100 | XPutImage( dpy, (Drawable)bitmap.GetPixmap(), gc, data_image, 0, 0, 0, 0, width, height ); | |
c7abc967 | 2101 | |
b75867a6 RR |
2102 | XDestroyImage( data_image ); |
2103 | XFreeGC( dpy, gc ); | |
c7abc967 | 2104 | |
b75867a6 | 2105 | // Blit mask |
68be9f09 JS |
2106 | if (HasMask()) |
2107 | { | |
2108 | wxBitmap maskBitmap(width, height, 1); | |
c7abc967 | 2109 | |
68be9f09 JS |
2110 | GC gcMask = XCreateGC( dpy, (Pixmap) maskBitmap.GetPixmap(), (XtGCMask) 0, (XGCValues*)NULL ); |
2111 | XPutImage( dpy, (Drawable)maskBitmap.GetPixmap(), gcMask, mask_image, 0, 0, 0, 0, width, height ); | |
c7abc967 | 2112 | |
68be9f09 JS |
2113 | XDestroyImage( mask_image ); |
2114 | XFreeGC( dpy, gcMask ); | |
c7abc967 | 2115 | |
68be9f09 JS |
2116 | wxMask* mask = new wxMask; |
2117 | mask->SetPixmap(maskBitmap.GetPixmap()); | |
2118 | ||
2119 | bitmap.SetMask(mask); | |
2120 | ||
2121 | maskBitmap.SetPixmapNull(); | |
2122 | } | |
c7abc967 | 2123 | |
b75867a6 | 2124 | return bitmap; |
ee4c6942 JS |
2125 | } |
2126 | ||
2127 | wxImage::wxImage( const wxBitmap &bitmap ) | |
2128 | { | |
223d09f6 | 2129 | wxCHECK_RET( bitmap.Ok(), wxT("invalid bitmap") ); |
c7abc967 | 2130 | |
38274997 RR |
2131 | Display *dpy = (Display*) wxGetDisplay(); |
2132 | Visual* vis = DefaultVisual( dpy, DefaultScreen( dpy ) ); | |
2133 | int bpp = DefaultDepth( dpy, DefaultScreen( dpy ) ); | |
c7abc967 | 2134 | |
38274997 | 2135 | XImage *ximage = XGetImage( dpy, |
dbda9e86 JS |
2136 | (Drawable)bitmap.GetPixmap(), |
2137 | 0, 0, | |
2138 | bitmap.GetWidth(), bitmap.GetHeight(), | |
2139 | AllPlanes, ZPixmap ); | |
c7abc967 | 2140 | |
223d09f6 | 2141 | wxCHECK_RET( ximage, wxT("couldn't create image") ); |
c7abc967 | 2142 | |
38274997 RR |
2143 | Create( bitmap.GetWidth(), bitmap.GetHeight() ); |
2144 | char unsigned *data = GetData(); | |
c7abc967 | 2145 | |
38274997 RR |
2146 | if (!data) |
2147 | { | |
2148 | XDestroyImage( ximage ); | |
223d09f6 | 2149 | wxFAIL_MSG( wxT("couldn't create image") ); |
38274997 RR |
2150 | return; |
2151 | } | |
c7abc967 | 2152 | |
dbda9e86 | 2153 | /* |
38274997 RR |
2154 | GdkImage *gdk_image_mask = (GdkImage*) NULL; |
2155 | if (bitmap.GetMask()) | |
2156 | { | |
dbda9e86 JS |
2157 | gdk_image_mask = gdk_image_get( bitmap.GetMask()->GetBitmap(), |
2158 | 0, 0, | |
2159 | bitmap.GetWidth(), bitmap.GetHeight() ); | |
c7abc967 | 2160 | |
dbda9e86 JS |
2161 | SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable |
2162 | } | |
2163 | */ | |
c7abc967 | 2164 | |
38274997 | 2165 | // Retrieve depth info |
c7abc967 | 2166 | |
38274997 RR |
2167 | XVisualInfo vinfo_template; |
2168 | XVisualInfo *vi; | |
c7abc967 | 2169 | |
38274997 RR |
2170 | vinfo_template.visual = vis; |
2171 | vinfo_template.visualid = XVisualIDFromVisual( vis ); | |
2172 | vinfo_template.depth = bpp; | |
2173 | int nitem = 0; | |
c7abc967 | 2174 | |
38274997 | 2175 | vi = XGetVisualInfo( dpy, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem ); |
c7abc967 | 2176 | |
223d09f6 | 2177 | wxCHECK_RET( vi, wxT("no visual") ); |
c7abc967 | 2178 | |
38274997 | 2179 | if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15; |
c7abc967 | 2180 | |
38274997 | 2181 | XFree( vi ); |
c7abc967 | 2182 | |
38274997 RR |
2183 | XColor colors[256]; |
2184 | if (bpp == 8) | |
2185 | { | |
dbda9e86 | 2186 | Colormap cmap = (Colormap)wxTheApp->GetMainColormap( dpy ); |
c7abc967 | 2187 | |
38274997 | 2188 | for (int i = 0; i < 256; i++) colors[i].pixel = i; |
dbda9e86 | 2189 | XQueryColors( dpy, cmap, colors, 256 ); |
38274997 | 2190 | } |
c7abc967 | 2191 | |
38274997 RR |
2192 | long pos = 0; |
2193 | for (int j = 0; j < bitmap.GetHeight(); j++) | |
2194 | { | |
2195 | for (int i = 0; i < bitmap.GetWidth(); i++) | |
2196 | { | |
dbda9e86 | 2197 | int pixel = XGetPixel( ximage, i, j ); |
38274997 RR |
2198 | if (bpp <= 8) |
2199 | { | |
2200 | data[pos] = colors[pixel].red >> 8; | |
2201 | data[pos+1] = colors[pixel].green >> 8; | |
2202 | data[pos+2] = colors[pixel].blue >> 8; | |
2203 | } else if (bpp == 15) | |
2204 | { | |
2205 | data[pos] = (pixel >> 7) & 0xf8; | |
2206 | data[pos+1] = (pixel >> 2) & 0xf8; | |
2207 | data[pos+2] = (pixel << 3) & 0xf8; | |
2208 | } else if (bpp == 16) | |
2209 | { | |
2210 | data[pos] = (pixel >> 8) & 0xf8; | |
2211 | data[pos+1] = (pixel >> 3) & 0xfc; | |
2212 | data[pos+2] = (pixel << 3) & 0xf8; | |
2213 | } else | |
2214 | { | |
2215 | data[pos] = (pixel >> 16) & 0xff; | |
2216 | data[pos+1] = (pixel >> 8) & 0xff; | |
2217 | data[pos+2] = pixel & 0xff; | |
2218 | } | |
c7abc967 | 2219 | |
dbda9e86 | 2220 | /* |
38274997 RR |
2221 | if (gdk_image_mask) |
2222 | { | |
dbda9e86 JS |
2223 | int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j ); |
2224 | if (mask_pixel == 0) | |
2225 | { | |
2226 | data[pos] = 16; | |
2227 | data[pos+1] = 16; | |
2228 | data[pos+2] = 16; | |
38274997 | 2229 | } |
dbda9e86 JS |
2230 | } |
2231 | */ | |
c7abc967 | 2232 | |
38274997 RR |
2233 | pos += 3; |
2234 | } | |
2235 | } | |
c7abc967 | 2236 | |
38274997 | 2237 | XDestroyImage( ximage ); |
dbda9e86 | 2238 | /* |
38274997 | 2239 | if (gdk_image_mask) gdk_image_destroy( gdk_image_mask ); |
dbda9e86 | 2240 | */ |
ee4c6942 JS |
2241 | } |
2242 | #endif | |
a91b47e8 | 2243 | |
004fd0c8 DW |
2244 | #ifdef __WXPM__ |
2245 | // OS/2 Presentation manager conversion routings | |
2246 | ||
2247 | wxBitmap wxImage::ConvertToBitmap() const | |
2248 | { | |
2249 | if ( !Ok() ) | |
2250 | return wxNullBitmap; | |
2251 | wxBitmap bitmap; // remove | |
2252 | // TODO: | |
2253 | /* | |
2254 | int sizeLimit = 1024*768*3; | |
2255 | ||
2256 | // width and height of the device-dependent bitmap | |
2257 | int width = GetWidth(); | |
2258 | int bmpHeight = GetHeight(); | |
2259 | ||
2260 | // calc the number of bytes per scanline and padding | |
2261 | int bytePerLine = width*3; | |
2262 | int sizeDWORD = sizeof( DWORD ); | |
2263 | int lineBoundary = bytePerLine % sizeDWORD; | |
2264 | int padding = 0; | |
2265 | if( lineBoundary > 0 ) | |
2266 | { | |
2267 | padding = sizeDWORD - lineBoundary; | |
2268 | bytePerLine += padding; | |
2269 | } | |
2270 | // calc the number of DIBs and heights of DIBs | |
2271 | int numDIB = 1; | |
2272 | int hRemain = 0; | |
2273 | int height = sizeLimit/bytePerLine; | |
2274 | if( height >= bmpHeight ) | |
2275 | height = bmpHeight; | |
2276 | else | |
2277 | { | |
2278 | numDIB = bmpHeight / height; | |
2279 | hRemain = bmpHeight % height; | |
2280 | if( hRemain >0 ) numDIB++; | |
2281 | } | |
2282 | ||
2283 | // set bitmap parameters | |
2284 | wxBitmap bitmap; | |
2285 | wxCHECK_MSG( Ok(), bitmap, wxT("invalid image") ); | |
2286 | bitmap.SetWidth( width ); | |
2287 | bitmap.SetHeight( bmpHeight ); | |
2288 | bitmap.SetDepth( wxDisplayDepth() ); | |
2289 | ||
2290 | // create a DIB header | |
2291 | int headersize = sizeof(BITMAPINFOHEADER); | |
2292 | LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize ); | |
2293 | wxCHECK_MSG( lpDIBh, bitmap, wxT("could not allocate memory for DIB header") ); | |
2294 | // Fill in the DIB header | |
2295 | lpDIBh->bmiHeader.biSize = headersize; | |
2296 | lpDIBh->bmiHeader.biWidth = (DWORD)width; | |
2297 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); | |
2298 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; | |
2299 | // the general formula for biSizeImage: | |
2300 | // ( ( ( ((DWORD)width*24) +31 ) & ~31 ) >> 3 ) * height; | |
2301 | lpDIBh->bmiHeader.biPlanes = 1; | |
2302 | lpDIBh->bmiHeader.biBitCount = 24; | |
2303 | lpDIBh->bmiHeader.biCompression = BI_RGB; | |
2304 | lpDIBh->bmiHeader.biClrUsed = 0; | |
2305 | // These seem not really needed for our purpose here. | |
2306 | lpDIBh->bmiHeader.biClrImportant = 0; | |
2307 | lpDIBh->bmiHeader.biXPelsPerMeter = 0; | |
2308 | lpDIBh->bmiHeader.biYPelsPerMeter = 0; | |
2309 | // memory for DIB data | |
2310 | unsigned char *lpBits; | |
2311 | lpBits = (unsigned char *)malloc( lpDIBh->bmiHeader.biSizeImage ); | |
2312 | if( !lpBits ) | |
2313 | { | |
2314 | wxFAIL_MSG( wxT("could not allocate memory for DIB") ); | |
2315 | free( lpDIBh ); | |
2316 | return bitmap; | |
2317 | } | |
2318 | ||
2319 | // create and set the device-dependent bitmap | |
2320 | HDC hdc = ::GetDC(NULL); | |
2321 | HDC memdc = ::CreateCompatibleDC( hdc ); | |
2322 | HBITMAP hbitmap; | |
2323 | hbitmap = ::CreateCompatibleBitmap( hdc, width, bmpHeight ); | |
2324 | ::SelectObject( memdc, hbitmap); | |
2325 | ||
2326 | // copy image data into DIB data and then into DDB (in a loop) | |
2327 | unsigned char *data = GetData(); | |
2328 | int i, j, n; | |
2329 | int origin = 0; | |
2330 | unsigned char *ptdata = data; | |
2331 | unsigned char *ptbits; | |
2332 | ||
2333 | for( n=0; n<numDIB; n++ ) | |
2334 | { | |
2335 | if( numDIB > 1 && n == numDIB-1 && hRemain > 0 ) | |
2336 | { | |
2337 | // redefine height and size of the (possibly) last smaller DIB | |
2338 | // memory is not reallocated | |
2339 | height = hRemain; | |
2340 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); | |
2341 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; | |
2342 | } | |
2343 | ptbits = lpBits; | |
2344 | ||
2345 | for( j=0; j<height; j++ ) | |
2346 | { | |
2347 | for( i=0; i<width; i++ ) | |
2348 | { | |
2349 | *(ptbits++) = *(ptdata+2); | |
2350 | *(ptbits++) = *(ptdata+1); | |
2351 | *(ptbits++) = *(ptdata ); | |
2352 | ptdata += 3; | |
2353 | } | |
2354 | for( i=0; i< padding; i++ ) *(ptbits++) = 0; | |
2355 | } | |
2356 | ::StretchDIBits( memdc, 0, origin, width, height,\ | |
2357 | 0, 0, width, height, lpBits, lpDIBh, DIB_RGB_COLORS, SRCCOPY); | |
2358 | origin += height; | |
2359 | // if numDIB = 1, lines below can also be used | |
2360 | // hbitmap = CreateDIBitmap( hdc, &(lpDIBh->bmiHeader), CBM_INIT, lpBits, lpDIBh, DIB_RGB_COLORS ); | |
2361 | // The above line is equivalent to the following two lines. | |
2362 | // hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); | |
2363 | // ::SetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS); | |
2364 | // or the following lines | |
2365 | // hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); | |
2366 | // HDC memdc = ::CreateCompatibleDC( hdc ); | |
2367 | // ::SelectObject( memdc, hbitmap); | |
2368 | // ::SetDIBitsToDevice( memdc, 0, 0, width, height, | |
2369 | // 0, 0, 0, height, (void *)lpBits, lpDIBh, DIB_RGB_COLORS); | |
2370 | // ::SelectObject( memdc, 0 ); | |
2371 | // ::DeleteDC( memdc ); | |
2372 | } | |
2373 | bitmap.SetHBITMAP( (WXHBITMAP) hbitmap ); | |
2374 | ||
2375 | // similarly, created an mono-bitmap for the possible mask | |
2376 | if( HasMask() ) | |
2377 | { | |
2378 | hbitmap = ::CreateBitmap( (WORD)width, (WORD)bmpHeight, 1, 1, NULL ); | |
2379 | ::SelectObject( memdc, hbitmap); | |
2380 | if( numDIB == 1 ) height = bmpHeight; | |
2381 | else height = sizeLimit/bytePerLine; | |
2382 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); | |
2383 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; | |
2384 | origin = 0; | |
2385 | unsigned char r = GetMaskRed(); | |
2386 | unsigned char g = GetMaskGreen(); | |
2387 | unsigned char b = GetMaskBlue(); | |
2388 | unsigned char zero = 0, one = 255; | |
2389 | ptdata = data; | |
2390 | for( n=0; n<numDIB; n++ ) | |
2391 | { | |
2392 | if( numDIB > 1 && n == numDIB - 1 && hRemain > 0 ) | |
2393 | { | |
2394 | // redefine height and size of the (possibly) last smaller DIB | |
2395 | // memory is not reallocated | |
2396 | height = hRemain; | |
2397 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); | |
2398 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; | |
2399 | } | |
2400 | ptbits = lpBits; | |
2401 | for( int j=0; j<height; j++ ) | |
2402 | { | |
2403 | for(i=0; i<width; i++ ) | |
2404 | { | |
2405 | if( (*(ptdata++)!=r) | (*(ptdata++)!=g) | (*(ptdata++)!=b) ) | |
2406 | { | |
2407 | *(ptbits++) = one; | |
2408 | *(ptbits++) = one; | |
2409 | *(ptbits++) = one; | |
2410 | } | |
2411 | else | |
2412 | { | |
2413 | *(ptbits++) = zero; | |
2414 | *(ptbits++) = zero; | |
2415 | *(ptbits++) = zero; | |
2416 | } | |
2417 | } | |
2418 | for( i=0; i< padding; i++ ) *(ptbits++) = zero; | |
2419 | } | |
2420 | ::StretchDIBits( memdc, 0, origin, width, height,\ | |
2421 | 0, 0, width, height, lpBits, lpDIBh, DIB_RGB_COLORS, SRCCOPY); | |
2422 | origin += height; | |
2423 | } | |
2424 | // create a wxMask object | |
2425 | wxMask *mask = new wxMask(); | |
2426 | mask->SetMaskBitmap( (WXHBITMAP) hbitmap ); | |
2427 | bitmap.SetMask( mask ); | |
2428 | } | |
2429 | ||
2430 | // free allocated resources | |
2431 | ::SelectObject( memdc, 0 ); | |
2432 | ::DeleteDC( memdc ); | |
2433 | ::ReleaseDC(NULL, hdc); | |
2434 | free(lpDIBh); | |
2435 | free(lpBits); | |
2436 | ||
2437 | // check the wxBitmap object | |
2438 | if( bitmap.GetHBITMAP() ) | |
2439 | bitmap.SetOk( TRUE ); | |
2440 | else | |
2441 | bitmap.SetOk( FALSE ); | |
2442 | */ | |
2443 | return bitmap; | |
2444 | } | |
2445 | ||
2446 | wxImage::wxImage( const wxBitmap &bitmap ) | |
2447 | { | |
2448 | // check the bitmap | |
2449 | if( !bitmap.Ok() ) | |
2450 | { | |
2451 | wxFAIL_MSG( wxT("invalid bitmap") ); | |
2452 | return; | |
2453 | } | |
2454 | ||
2455 | // create an wxImage object | |
2456 | int width = bitmap.GetWidth(); | |
2457 | int height = bitmap.GetHeight(); | |
2458 | Create( width, height ); | |
2459 | unsigned char *data = GetData(); | |
2460 | if( !data ) | |
2461 | { | |
2462 | wxFAIL_MSG( wxT("could not allocate data for image") ); | |
2463 | return; | |
2464 | } | |
2465 | ||
2466 | // calc the number of bytes per scanline and padding in the DIB | |
2467 | int bytePerLine = width*3; | |
2468 | int sizeDWORD = sizeof( DWORD ); | |
2469 | int lineBoundary = bytePerLine % sizeDWORD; | |
2470 | int padding = 0; | |
2471 | if( lineBoundary > 0 ) | |
2472 | { | |
2473 | padding = sizeDWORD - lineBoundary; | |
2474 | bytePerLine += padding; | |
2475 | } | |
2476 | // TODO: | |
2477 | /* | |
2478 | // create a DIB header | |
2479 | int headersize = sizeof(BITMAPINFOHEADER); | |
2480 | LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize ); | |
2481 | if( !lpDIBh ) | |
2482 | { | |
2483 | wxFAIL_MSG( wxT("could not allocate data for DIB header") ); | |
2484 | free( data ); | |
2485 | return; | |
2486 | } | |
2487 | // Fill in the DIB header | |
2488 | lpDIBh->bmiHeader.biSize = headersize; | |
2489 | lpDIBh->bmiHeader.biWidth = width; | |
2490 | lpDIBh->bmiHeader.biHeight = -height; | |
2491 | lpDIBh->bmiHeader.biSizeImage = bytePerLine * height; | |
2492 | lpDIBh->bmiHeader.biPlanes = 1; | |
2493 | lpDIBh->bmiHeader.biBitCount = 24; | |
2494 | lpDIBh->bmiHeader.biCompression = BI_RGB; | |
2495 | lpDIBh->bmiHeader.biClrUsed = 0; | |
2496 | // These seem not really needed for our purpose here. | |
2497 | lpDIBh->bmiHeader.biClrImportant = 0; | |
2498 | lpDIBh->bmiHeader.biXPelsPerMeter = 0; | |
2499 | lpDIBh->bmiHeader.biYPelsPerMeter = 0; | |
2500 | // memory for DIB data | |
2501 | unsigned char *lpBits; | |
2502 | lpBits = (unsigned char *) malloc( lpDIBh->bmiHeader.biSizeImage ); | |
2503 | if( !lpBits ) | |
2504 | { | |
2505 | wxFAIL_MSG( wxT("could not allocate data for DIB") ); | |
2506 | free( data ); | |
2507 | free( lpDIBh ); | |
2508 | return; | |
2509 | } | |
2510 | ||
2511 | // copy data from the device-dependent bitmap to the DIB | |
2512 | HDC hdc = ::GetDC(NULL); | |
2513 | HBITMAP hbitmap; | |
2514 | hbitmap = (HBITMAP) bitmap.GetHBITMAP(); | |
2515 | ::GetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); | |
2516 | ||
2517 | // copy DIB data into the wxImage object | |
2518 | int i, j; | |
2519 | unsigned char *ptdata = data; | |
2520 | unsigned char *ptbits = lpBits; | |
2521 | for( i=0; i<height; i++ ) | |
2522 | { | |
2523 | for( j=0; j<width; j++ ) | |
2524 | { | |
2525 | *(ptdata++) = *(ptbits+2); | |
2526 | *(ptdata++) = *(ptbits+1); | |
2527 | *(ptdata++) = *(ptbits ); | |
2528 | ptbits += 3; | |
2529 | } | |
2530 | ptbits += padding; | |
2531 | } | |
2532 | ||
2533 | // similarly, set data according to the possible mask bitmap | |
2534 | if( bitmap.GetMask() && bitmap.GetMask()->GetMaskBitmap() ) | |
2535 | { | |
2536 | hbitmap = (HBITMAP) bitmap.GetMask()->GetMaskBitmap(); | |
2537 | // memory DC created, color set, data copied, and memory DC deleted | |
2538 | HDC memdc = ::CreateCompatibleDC( hdc ); | |
2539 | ::SetTextColor( memdc, RGB( 0, 0, 0 ) ); | |
2540 | ::SetBkColor( memdc, RGB( 255, 255, 255 ) ); | |
2541 | ::GetDIBits( memdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); | |
2542 | ::DeleteDC( memdc ); | |
2543 | // background color set to RGB(16,16,16) in consistent with wxGTK | |
2544 | unsigned char r=16, g=16, b=16; | |
2545 | ptdata = data; | |
2546 | ptbits = lpBits; | |
2547 | for( i=0; i<height; i++ ) | |
2548 | { | |
2549 | for( j=0; j<width; j++ ) | |
2550 | { | |
2551 | if( *ptbits != 0 ) | |
2552 | ptdata += 3; | |
2553 | else | |
2554 | { | |
2555 | *(ptdata++) = r; | |
2556 | *(ptdata++) = g; | |
2557 | *(ptdata++) = b; | |
2558 | } | |
2559 | ptbits += 3; | |
2560 | } | |
2561 | ptbits += padding; | |
2562 | } | |
2563 | SetMaskColour( r, g, b ); | |
2564 | SetMask( TRUE ); | |
2565 | } | |
2566 | else | |
2567 | { | |
2568 | SetMask( FALSE ); | |
2569 | } | |
2570 | // free allocated resources | |
2571 | ::ReleaseDC(NULL, hdc); | |
2572 | free(lpDIBh); | |
2573 | free(lpBits); | |
2574 | */ | |
2575 | } | |
2576 | ||
2577 | #endif | |
2578 | ||
a91b47e8 JS |
2579 | // A module to allow wxImage initialization/cleanup |
2580 | // without calling these functions from app.cpp or from | |
2581 | // the user's application. | |
2582 | ||
2583 | class wxImageModule: public wxModule | |
2584 | { | |
2585 | DECLARE_DYNAMIC_CLASS(wxImageModule) | |
2586 | public: | |
2587 | wxImageModule() {} | |
2588 | bool OnInit() { wxImage::InitStandardHandlers(); return TRUE; }; | |
2589 | void OnExit() { wxImage::CleanUpHandlers(); }; | |
2590 | }; | |
2591 | ||
2592 | IMPLEMENT_DYNAMIC_CLASS(wxImageModule, wxModule) | |
c9d01afd GRG |
2593 | |
2594 | ||
2595 | //----------------------------------------------------------------------------- | |
2596 | ||
89d00456 GRG |
2597 | // GRG, Dic/99 |
2598 | // Counts and returns the number of different colours. Optionally stops | |
cc9f7d79 GRG |
2599 | // when it exceeds 'stopafter' different colours. This is useful, for |
2600 | // example, to see if the image can be saved as 8-bit (256 colour or | |
2601 | // less, in this case it would be invoked as CountColours(256)). Default | |
2602 | // value for stopafter is -1 (don't care). | |
89d00456 | 2603 | // |
cc9f7d79 | 2604 | unsigned long wxImage::CountColours( unsigned long stopafter ) |
89d00456 GRG |
2605 | { |
2606 | wxHashTable h; | |
ad30de59 | 2607 | wxObject dummy; |
89d00456 GRG |
2608 | unsigned char r, g, b, *p; |
2609 | unsigned long size, nentries, key; | |
2610 | ||
2611 | p = GetData(); | |
2612 | size = GetWidth() * GetHeight(); | |
2613 | nentries = 0; | |
2614 | ||
cc9f7d79 | 2615 | for (unsigned long j = 0; (j < size) && (nentries <= stopafter) ; j++) |
89d00456 GRG |
2616 | { |
2617 | r = *(p++); | |
2618 | g = *(p++); | |
2619 | b = *(p++); | |
2620 | key = (r << 16) | (g << 8) | b; | |
2621 | ||
ad30de59 | 2622 | if (h.Get(key) == NULL) |
89d00456 | 2623 | { |
ad30de59 | 2624 | h.Put(key, &dummy); |
89d00456 GRG |
2625 | nentries++; |
2626 | } | |
2627 | } | |
2628 | ||
89d00456 GRG |
2629 | return nentries; |
2630 | } | |
2631 | ||
2632 | ||
c9d01afd GRG |
2633 | // GRG, Dic/99 |
2634 | // Computes the histogram of the image and fills a hash table, indexed | |
2635 | // with integer keys built as 0xRRGGBB, containing wxHNode objects. Each | |
2636 | // wxHNode contains an 'index' (useful to build a palette with the image | |
2637 | // colours) and a 'value', which is the number of pixels in the image with | |
2638 | // that colour. | |
89d00456 | 2639 | // |
c9d01afd GRG |
2640 | unsigned long wxImage::ComputeHistogram( wxHashTable &h ) |
2641 | { | |
2642 | unsigned char r, g, b, *p; | |
2643 | unsigned long size, nentries, key; | |
2644 | wxHNode *hnode; | |
2645 | ||
2646 | p = GetData(); | |
2647 | size = GetWidth() * GetHeight(); | |
2648 | nentries = 0; | |
2649 | ||
2650 | for (unsigned long j = 0; j < size; j++) | |
2651 | { | |
2652 | r = *(p++); | |
2653 | g = *(p++); | |
2654 | b = *(p++); | |
2655 | key = (r << 16) | (g << 8) | b; | |
2656 | ||
2657 | hnode = (wxHNode *) h.Get(key); | |
2658 | ||
2659 | if (hnode) | |
2660 | hnode->value++; | |
2661 | else | |
2662 | { | |
2663 | hnode = new wxHNode(); | |
97fdfcc9 | 2664 | hnode->index = nentries++; |
c9d01afd GRG |
2665 | hnode->value = 1; |
2666 | ||
2667 | h.Put(key, (wxObject *)hnode); | |
2668 | } | |
2669 | } | |
2670 | ||
2671 | return nentries; | |
2672 | } | |
2673 | ||
7a632f10 JS |
2674 | /* |
2675 | * Rotation code by Carlos Moreno | |
2676 | */ | |
2677 | ||
b5c91ac6 GRG |
2678 | // GRG: I've removed wxRotationPoint - we already have wxRealPoint which |
2679 | // does exactly the same thing. And I also got rid of wxRotationPixel | |
2680 | // bacause of potential problems in architectures where alignment | |
2681 | // is an issue, so I had to rewrite parts of the code. | |
7a632f10 | 2682 | |
7a632f10 JS |
2683 | static const double gs_Epsilon = 1e-10; |
2684 | ||
2685 | static inline int wxCint (double x) | |
2686 | { | |
2687 | return (x > 0) ? (int) (x + 0.5) : (int) (x - 0.5); | |
2688 | } | |
2689 | ||
2690 | ||
2691 | // Auxiliary function to rotate a point (x,y) with respect to point p0 | |
2692 | // make it inline and use a straight return to facilitate optimization | |
2693 | // also, the function receives the sine and cosine of the angle to avoid | |
2694 | // repeating the time-consuming calls to these functions -- sin/cos can | |
2695 | // be computed and stored in the calling function. | |
2696 | ||
b5c91ac6 | 2697 | inline wxRealPoint rotated_point (const wxRealPoint & p, double cos_angle, double sin_angle, const wxRealPoint & p0) |
7a632f10 | 2698 | { |
b5c91ac6 GRG |
2699 | return wxRealPoint (p0.x + (p.x - p0.x) * cos_angle - (p.y - p0.y) * sin_angle, |
2700 | p0.y + (p.y - p0.y) * cos_angle + (p.x - p0.x) * sin_angle); | |
7a632f10 JS |
2701 | } |
2702 | ||
b5c91ac6 | 2703 | inline wxRealPoint rotated_point (double x, double y, double cos_angle, double sin_angle, const wxRealPoint & p0) |
7a632f10 | 2704 | { |
b5c91ac6 | 2705 | return rotated_point (wxRealPoint(x,y), cos_angle, sin_angle, p0); |
7a632f10 JS |
2706 | } |
2707 | ||
2708 | wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool interpolating, wxPoint * offset_after_rotation) const | |
2709 | { | |
7a632f10 JS |
2710 | int i; |
2711 | angle = -angle; // screen coordinates are a mirror image of "real" coordinates | |
2712 | ||
ad30de59 | 2713 | // Create pointer-based array to accelerate access to wxImage's data |
b5c91ac6 | 2714 | unsigned char ** data = new unsigned char * [GetHeight()]; |
7a632f10 | 2715 | |
b5c91ac6 | 2716 | data[0] = GetData(); |
7a632f10 | 2717 | |
b5c91ac6 GRG |
2718 | for (i = 1; i < GetHeight(); i++) |
2719 | data[i] = data[i - 1] + (3 * GetWidth()); | |
7a632f10 | 2720 | |
b5c91ac6 | 2721 | // precompute coefficients for rotation formula |
ad30de59 | 2722 | // (sine and cosine of the angle) |
7a632f10 JS |
2723 | const double cos_angle = cos(angle); |
2724 | const double sin_angle = sin(angle); | |
2725 | ||
ad30de59 GRG |
2726 | // Create new Image to store the result |
2727 | // First, find rectangle that covers the rotated image; to do that, | |
2728 | // rotate the four corners | |
7a632f10 | 2729 | |
b5c91ac6 | 2730 | const wxRealPoint p0(centre_of_rotation.x, centre_of_rotation.y); |
7a632f10 | 2731 | |
b5c91ac6 GRG |
2732 | wxRealPoint p1 = rotated_point (0, 0, cos_angle, sin_angle, p0); |
2733 | wxRealPoint p2 = rotated_point (0, GetHeight(), cos_angle, sin_angle, p0); | |
2734 | wxRealPoint p3 = rotated_point (GetWidth(), 0, cos_angle, sin_angle, p0); | |
2735 | wxRealPoint p4 = rotated_point (GetWidth(), GetHeight(), cos_angle, sin_angle, p0); | |
7a632f10 | 2736 | |
57c1c6cb BJ |
2737 | int x1 = (int) floor (wxMin (wxMin(p1.x, p2.x), wxMin(p3.x, p4.x))); |
2738 | int y1 = (int) floor (wxMin (wxMin(p1.y, p2.y), wxMin(p3.y, p4.y))); | |
57c1c6cb BJ |
2739 | int x2 = (int) ceil (wxMax (wxMax(p1.x, p2.x), wxMax(p3.x, p4.x))); |
2740 | int y2 = (int) ceil (wxMax (wxMax(p1.y, p2.y), wxMax(p3.y, p4.y))); | |
7a632f10 JS |
2741 | |
2742 | wxImage rotated (x2 - x1 + 1, y2 - y1 + 1); | |
2743 | ||
2744 | if (offset_after_rotation != NULL) | |
2745 | { | |
06b466c7 | 2746 | *offset_after_rotation = wxPoint (x1, y1); |
7a632f10 JS |
2747 | } |
2748 | ||
b5c91ac6 GRG |
2749 | // GRG: The rotated (destination) image is always accessed |
2750 | // sequentially, so there is no need for a pointer-based | |
2751 | // array here (and in fact it would be slower). | |
2752 | // | |
2753 | unsigned char * dst = rotated.GetData(); | |
7a632f10 | 2754 | |
ad30de59 GRG |
2755 | // GRG: if the original image has a mask, use its RGB values |
2756 | // as the blank pixel, else, fall back to default (black). | |
2757 | // | |
b5c91ac6 GRG |
2758 | unsigned char blank_r = 0; |
2759 | unsigned char blank_g = 0; | |
2760 | unsigned char blank_b = 0; | |
ad30de59 GRG |
2761 | |
2762 | if (HasMask()) | |
2763 | { | |
b5c91ac6 GRG |
2764 | blank_r = GetMaskRed(); |
2765 | blank_g = GetMaskGreen(); | |
2766 | blank_b = GetMaskBlue(); | |
2767 | rotated.SetMaskColour( blank_r, blank_g, blank_b ); | |
ad30de59 GRG |
2768 | } |
2769 | ||
2770 | // Now, for each point of the rotated image, find where it came from, by | |
2771 | // performing an inverse rotation (a rotation of -angle) and getting the | |
2772 | // pixel at those coordinates | |
2773 | ||
b5c91ac6 GRG |
2774 | // GRG: I've taken the (interpolating) test out of the loops, so that |
2775 | // it is done only once, instead of repeating it for each pixel. | |
7a632f10 JS |
2776 | |
2777 | int x; | |
b5c91ac6 | 2778 | if (interpolating) |
7a632f10 JS |
2779 | { |
2780 | for (int y = 0; y < rotated.GetHeight(); y++) | |
2781 | { | |
b5c91ac6 | 2782 | for (x = 0; x < rotated.GetWidth(); x++) |
7a632f10 | 2783 | { |
b5c91ac6 GRG |
2784 | wxRealPoint src = rotated_point (x + x1, y + y1, cos_angle, -sin_angle, p0); |
2785 | ||
f2506310 JS |
2786 | if (-0.25 < src.x && src.x < GetWidth() - 0.75 && |
2787 | -0.25 < src.y && src.y < GetHeight() - 0.75) | |
7a632f10 | 2788 | { |
ad30de59 GRG |
2789 | // interpolate using the 4 enclosing grid-points. Those |
2790 | // points can be obtained using floor and ceiling of the | |
2791 | // exact coordinates of the point | |
f2506310 | 2792 | // C.M. 2000-02-17: when the point is near the border, special care is required. |
7a632f10 | 2793 | |
f2506310 JS |
2794 | int x1, y1, x2, y2; |
2795 | ||
2796 | if (0 < src.x && src.x < GetWidth() - 1) | |
2797 | { | |
2798 | x1 = wxCint(floor(src.x)); | |
2799 | x2 = wxCint(ceil(src.x)); | |
2800 | } | |
2801 | else // else means that x is near one of the borders (0 or width-1) | |
2802 | { | |
2803 | x1 = x2 = wxCint (src.x); | |
2804 | } | |
2805 | ||
2806 | if (0 < src.y && src.y < GetHeight() - 1) | |
2807 | { | |
2808 | y1 = wxCint(floor(src.y)); | |
2809 | y2 = wxCint(ceil(src.y)); | |
2810 | } | |
2811 | else | |
2812 | { | |
2813 | y1 = y2 = wxCint (src.y); | |
2814 | } | |
7a632f10 | 2815 | |
ad30de59 GRG |
2816 | // get four points and the distances (square of the distance, |
2817 | // for efficiency reasons) for the interpolation formula | |
b5c91ac6 GRG |
2818 | |
2819 | // GRG: Do not calculate the points until they are | |
2820 | // really needed -- this way we can calculate | |
2821 | // just one, instead of four, if d1, d2, d3 | |
2822 | // or d4 are < gs_Epsilon | |
7a632f10 JS |
2823 | |
2824 | const double d1 = (src.x - x1) * (src.x - x1) + (src.y - y1) * (src.y - y1); | |
2825 | const double d2 = (src.x - x2) * (src.x - x2) + (src.y - y1) * (src.y - y1); | |
2826 | const double d3 = (src.x - x2) * (src.x - x2) + (src.y - y2) * (src.y - y2); | |
2827 | const double d4 = (src.x - x1) * (src.x - x1) + (src.y - y2) * (src.y - y2); | |
2828 | ||
ad30de59 GRG |
2829 | // Now interpolate as a weighted average of the four surrounding |
2830 | // points, where the weights are the distances to each of those points | |
7a632f10 | 2831 | |
ad30de59 GRG |
2832 | // If the point is exactly at one point of the grid of the source |
2833 | // image, then don't interpolate -- just assign the pixel | |
7a632f10 | 2834 | |
06b466c7 | 2835 | if (d1 < gs_Epsilon) // d1,d2,d3,d4 are positive -- no need for abs() |
7a632f10 | 2836 | { |
b5c91ac6 GRG |
2837 | unsigned char *p = data[y1] + (3 * x1); |
2838 | *(dst++) = *(p++); | |
2839 | *(dst++) = *(p++); | |
2840 | *(dst++) = *(p++); | |
7a632f10 JS |
2841 | } |
2842 | else if (d2 < gs_Epsilon) | |
2843 | { | |
b5c91ac6 GRG |
2844 | unsigned char *p = data[y1] + (3 * x2); |
2845 | *(dst++) = *(p++); | |
2846 | *(dst++) = *(p++); | |
2847 | *(dst++) = *(p++); | |
7a632f10 JS |
2848 | } |
2849 | else if (d3 < gs_Epsilon) | |
2850 | { | |
b5c91ac6 GRG |
2851 | unsigned char *p = data[y2] + (3 * x2); |
2852 | *(dst++) = *(p++); | |
2853 | *(dst++) = *(p++); | |
2854 | *(dst++) = *(p++); | |
7a632f10 JS |
2855 | } |
2856 | else if (d4 < gs_Epsilon) | |
2857 | { | |
b5c91ac6 GRG |
2858 | unsigned char *p = data[y2] + (3 * x1); |
2859 | *(dst++) = *(p++); | |
2860 | *(dst++) = *(p++); | |
2861 | *(dst++) = *(p++); | |
7a632f10 JS |
2862 | } |
2863 | else | |
2864 | { | |
06b466c7 | 2865 | // weights for the weighted average are proportional to the inverse of the distance |
b5c91ac6 GRG |
2866 | unsigned char *v1 = data[y1] + (3 * x1); |
2867 | unsigned char *v2 = data[y1] + (3 * x2); | |
2868 | unsigned char *v3 = data[y2] + (3 * x2); | |
2869 | unsigned char *v4 = data[y2] + (3 * x1); | |
2870 | ||
06b466c7 VZ |
2871 | const double w1 = 1/d1, w2 = 1/d2, w3 = 1/d3, w4 = 1/d4; |
2872 | ||
b5c91ac6 GRG |
2873 | // GRG: Unrolled. |
2874 | ||
2875 | *(dst++) = (unsigned char) | |
2876 | ( (w1 * *(v1++) + w2 * *(v2++) + | |
2877 | w3 * *(v3++) + w4 * *(v4++)) / | |
2878 | (w1 + w2 + w3 + w4) ); | |
2879 | *(dst++) = (unsigned char) | |
2880 | ( (w1 * *(v1++) + w2 * *(v2++) + | |
2881 | w3 * *(v3++) + w4 * *(v4++)) / | |
2882 | (w1 + w2 + w3 + w4) ); | |
2883 | *(dst++) = (unsigned char) | |
2884 | ( (w1 * *(v1++) + w2 * *(v2++) + | |
2885 | w3 * *(v3++) + w4 * *(v4++)) / | |
2886 | (w1 + w2 + w3 + w4) ); | |
7a632f10 JS |
2887 | } |
2888 | } | |
2889 | else | |
2890 | { | |
b5c91ac6 GRG |
2891 | *(dst++) = blank_r; |
2892 | *(dst++) = blank_g; | |
2893 | *(dst++) = blank_b; | |
7a632f10 JS |
2894 | } |
2895 | } | |
b5c91ac6 GRG |
2896 | } |
2897 | } | |
2898 | else // not interpolating | |
2899 | { | |
2900 | for (int y = 0; y < rotated.GetHeight(); y++) | |
2901 | { | |
2902 | for (x = 0; x < rotated.GetWidth(); x++) | |
7a632f10 | 2903 | { |
b5c91ac6 GRG |
2904 | wxRealPoint src = rotated_point (x + x1, y + y1, cos_angle, -sin_angle, p0); |
2905 | ||
2906 | const int xs = wxCint (src.x); // wxCint rounds to the | |
457e6c54 | 2907 | const int ys = wxCint (src.y); // closest integer |
7a632f10 | 2908 | |
b5c91ac6 GRG |
2909 | if (0 <= xs && xs < GetWidth() && |
2910 | 0 <= ys && ys < GetHeight()) | |
7a632f10 | 2911 | { |
b5c91ac6 GRG |
2912 | unsigned char *p = data[ys] + (3 * xs); |
2913 | *(dst++) = *(p++); | |
2914 | *(dst++) = *(p++); | |
2915 | *(dst++) = *(p++); | |
7a632f10 JS |
2916 | } |
2917 | else | |
2918 | { | |
b5c91ac6 GRG |
2919 | *(dst++) = blank_r; |
2920 | *(dst++) = blank_g; | |
2921 | *(dst++) = blank_b; | |
7a632f10 JS |
2922 | } |
2923 | } | |
2924 | } | |
2925 | } | |
2926 | ||
4aff28fc | 2927 | delete [] data; |
4aff28fc | 2928 | |
7a632f10 JS |
2929 | return rotated; |
2930 | } | |
c9d01afd | 2931 |