| 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 | |
| 14 | // For compilers that support precompilation, includes "wx.h". |
| 15 | #include "wx/wxprec.h" |
| 16 | |
| 17 | #ifdef __BORLANDC__ |
| 18 | #pragma hdrstop |
| 19 | #endif |
| 20 | |
| 21 | #include "wx/image.h" |
| 22 | #include "wx/bitmap.h" |
| 23 | #include "wx/debug.h" |
| 24 | #include "wx/log.h" |
| 25 | #include "wx/app.h" |
| 26 | #include "wx/filefn.h" |
| 27 | #include "wx/wfstream.h" |
| 28 | #include "wx/intl.h" |
| 29 | #include "wx/module.h" |
| 30 | |
| 31 | // For memcpy |
| 32 | #include <string.h> |
| 33 | |
| 34 | #ifdef __SALFORDC__ |
| 35 | #ifdef FAR |
| 36 | #undef FAR |
| 37 | #endif |
| 38 | #endif |
| 39 | |
| 40 | #ifdef __WXMSW__ |
| 41 | #include <windows.h> |
| 42 | #endif |
| 43 | |
| 44 | //----------------------------------------------------------------------------- |
| 45 | // wxImage |
| 46 | //----------------------------------------------------------------------------- |
| 47 | |
| 48 | class wxImageRefData: public wxObjectRefData |
| 49 | { |
| 50 | |
| 51 | public: |
| 52 | wxImageRefData(void); |
| 53 | ~wxImageRefData(void); |
| 54 | |
| 55 | int m_width; |
| 56 | int m_height; |
| 57 | unsigned char *m_data; |
| 58 | bool m_hasMask; |
| 59 | unsigned char m_maskRed,m_maskGreen,m_maskBlue; |
| 60 | bool m_ok; |
| 61 | }; |
| 62 | |
| 63 | wxImageRefData::wxImageRefData(void) |
| 64 | { |
| 65 | m_width = 0; |
| 66 | m_height = 0; |
| 67 | m_data = (unsigned char*) NULL; |
| 68 | m_ok = FALSE; |
| 69 | m_maskRed = 0; |
| 70 | m_maskGreen = 0; |
| 71 | m_maskBlue = 0; |
| 72 | m_hasMask = FALSE; |
| 73 | } |
| 74 | |
| 75 | wxImageRefData::~wxImageRefData(void) |
| 76 | { |
| 77 | if (m_data) free( m_data ); |
| 78 | } |
| 79 | |
| 80 | wxList wxImage::sm_handlers; |
| 81 | |
| 82 | //----------------------------------------------------------------------------- |
| 83 | |
| 84 | #define M_IMGDATA ((wxImageRefData *)m_refData) |
| 85 | |
| 86 | #if !USE_SHARED_LIBRARIES |
| 87 | IMPLEMENT_DYNAMIC_CLASS(wxImage, wxObject) |
| 88 | #endif |
| 89 | |
| 90 | wxImage::wxImage() |
| 91 | { |
| 92 | } |
| 93 | |
| 94 | wxImage::wxImage( int width, int height ) |
| 95 | { |
| 96 | Create( width, height ); |
| 97 | } |
| 98 | |
| 99 | wxImage::wxImage( const wxString& name, long type ) |
| 100 | { |
| 101 | LoadFile( name, type ); |
| 102 | } |
| 103 | |
| 104 | wxImage::wxImage( const wxString& name, const wxString& mimetype ) |
| 105 | { |
| 106 | LoadFile( name, mimetype ); |
| 107 | } |
| 108 | |
| 109 | #if wxUSE_STREAMS |
| 110 | wxImage::wxImage( wxInputStream& stream, long type ) |
| 111 | { |
| 112 | LoadFile( stream, type ); |
| 113 | } |
| 114 | |
| 115 | wxImage::wxImage( wxInputStream& stream, const wxString& mimetype ) |
| 116 | { |
| 117 | LoadFile( stream, mimetype ); |
| 118 | } |
| 119 | #endif // wxUSE_STREAMS |
| 120 | |
| 121 | wxImage::wxImage( const wxImage& image ) |
| 122 | { |
| 123 | Ref(image); |
| 124 | } |
| 125 | |
| 126 | wxImage::wxImage( const wxImage* image ) |
| 127 | { |
| 128 | if (image) Ref(*image); |
| 129 | } |
| 130 | |
| 131 | void wxImage::Create( int width, int height ) |
| 132 | { |
| 133 | m_refData = new wxImageRefData(); |
| 134 | |
| 135 | M_IMGDATA->m_data = (unsigned char *) malloc( width*height*3 ); |
| 136 | if (M_IMGDATA->m_data) |
| 137 | { |
| 138 | for (int l = 0; l < width*height*3; l++) M_IMGDATA->m_data[l] = 0; |
| 139 | |
| 140 | M_IMGDATA->m_width = width; |
| 141 | M_IMGDATA->m_height = height; |
| 142 | M_IMGDATA->m_ok = TRUE; |
| 143 | } |
| 144 | else |
| 145 | { |
| 146 | UnRef(); |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | void wxImage::Destroy() |
| 151 | { |
| 152 | UnRef(); |
| 153 | } |
| 154 | |
| 155 | wxImage wxImage::Scale( int width, int height ) |
| 156 | { |
| 157 | wxImage image; |
| 158 | |
| 159 | wxCHECK_MSG( Ok(), image, _T("invalid image") ); |
| 160 | |
| 161 | wxCHECK_MSG( (width > 0) && (height > 0), image, _T("invalid image size") ); |
| 162 | |
| 163 | image.Create( width, height ); |
| 164 | |
| 165 | char unsigned *data = image.GetData(); |
| 166 | |
| 167 | wxCHECK_MSG( data, image, _T("unable to create image") ); |
| 168 | |
| 169 | if (M_IMGDATA->m_hasMask) |
| 170 | image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue ); |
| 171 | |
| 172 | long old_height = M_IMGDATA->m_height; |
| 173 | long old_width = M_IMGDATA->m_width; |
| 174 | |
| 175 | char unsigned *source_data = M_IMGDATA->m_data; |
| 176 | char unsigned *target_data = data; |
| 177 | |
| 178 | for (long j = 0; j < height; j++) |
| 179 | { |
| 180 | long y_offset = (j * old_height / height) * old_width; |
| 181 | |
| 182 | for (long i = 0; i < width; i++) |
| 183 | { |
| 184 | memcpy( target_data, |
| 185 | source_data + 3*(y_offset + ((i * old_width )/ width)), |
| 186 | 3 ); |
| 187 | target_data += 3; |
| 188 | } |
| 189 | } |
| 190 | |
| 191 | return image; |
| 192 | } |
| 193 | |
| 194 | void wxImage::SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b ) |
| 195 | { |
| 196 | wxCHECK_RET( Ok(), _T("invalid image") ); |
| 197 | |
| 198 | int w = M_IMGDATA->m_width; |
| 199 | int h = M_IMGDATA->m_height; |
| 200 | |
| 201 | wxCHECK_RET( (x>=0) && (y>=0) && (x<w) && (y<h), _T("invalid image index") ); |
| 202 | |
| 203 | long pos = (y * w + x) * 3; |
| 204 | |
| 205 | M_IMGDATA->m_data[ pos ] = r; |
| 206 | M_IMGDATA->m_data[ pos+1 ] = g; |
| 207 | M_IMGDATA->m_data[ pos+2 ] = b; |
| 208 | } |
| 209 | |
| 210 | unsigned char wxImage::GetRed( int x, int y ) |
| 211 | { |
| 212 | wxCHECK_MSG( Ok(), 0, _T("invalid image") ); |
| 213 | |
| 214 | int w = M_IMGDATA->m_width; |
| 215 | int h = M_IMGDATA->m_height; |
| 216 | |
| 217 | wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, _T("invalid image index") ); |
| 218 | |
| 219 | long pos = (y * w + x) * 3; |
| 220 | |
| 221 | return M_IMGDATA->m_data[pos]; |
| 222 | } |
| 223 | |
| 224 | unsigned char wxImage::GetGreen( int x, int y ) |
| 225 | { |
| 226 | wxCHECK_MSG( Ok(), 0, _T("invalid image") ); |
| 227 | |
| 228 | int w = M_IMGDATA->m_width; |
| 229 | int h = M_IMGDATA->m_height; |
| 230 | |
| 231 | wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, _T("invalid image index") ); |
| 232 | |
| 233 | long pos = (y * w + x) * 3; |
| 234 | |
| 235 | return M_IMGDATA->m_data[pos+1]; |
| 236 | } |
| 237 | |
| 238 | unsigned char wxImage::GetBlue( int x, int y ) |
| 239 | { |
| 240 | wxCHECK_MSG( Ok(), 0, _T("invalid image") ); |
| 241 | |
| 242 | int w = M_IMGDATA->m_width; |
| 243 | int h = M_IMGDATA->m_height; |
| 244 | |
| 245 | wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, _T("invalid image index") ); |
| 246 | |
| 247 | long pos = (y * w + x) * 3; |
| 248 | |
| 249 | return M_IMGDATA->m_data[pos+2]; |
| 250 | } |
| 251 | |
| 252 | bool wxImage::Ok() const |
| 253 | { |
| 254 | return (M_IMGDATA && M_IMGDATA->m_ok); |
| 255 | } |
| 256 | |
| 257 | char unsigned *wxImage::GetData() const |
| 258 | { |
| 259 | wxCHECK_MSG( Ok(), (char unsigned *)NULL, _T("invalid image") ); |
| 260 | |
| 261 | return M_IMGDATA->m_data; |
| 262 | } |
| 263 | |
| 264 | void wxImage::SetData( char unsigned *data ) |
| 265 | { |
| 266 | wxCHECK_RET( Ok(), _T("invalid image") ); |
| 267 | |
| 268 | memcpy(M_IMGDATA->m_data, data, M_IMGDATA->m_width * M_IMGDATA->m_height * 3); |
| 269 | } |
| 270 | |
| 271 | void wxImage::SetMaskColour( unsigned char r, unsigned char g, unsigned char b ) |
| 272 | { |
| 273 | wxCHECK_RET( Ok(), _T("invalid image") ); |
| 274 | |
| 275 | M_IMGDATA->m_maskRed = r; |
| 276 | M_IMGDATA->m_maskGreen = g; |
| 277 | M_IMGDATA->m_maskBlue = b; |
| 278 | M_IMGDATA->m_hasMask = TRUE; |
| 279 | } |
| 280 | |
| 281 | unsigned char wxImage::GetMaskRed() const |
| 282 | { |
| 283 | wxCHECK_MSG( Ok(), 0, _T("invalid image") ); |
| 284 | |
| 285 | return M_IMGDATA->m_maskRed; |
| 286 | } |
| 287 | |
| 288 | unsigned char wxImage::GetMaskGreen() const |
| 289 | { |
| 290 | wxCHECK_MSG( Ok(), 0, _T("invalid image") ); |
| 291 | |
| 292 | return M_IMGDATA->m_maskGreen; |
| 293 | } |
| 294 | |
| 295 | unsigned char wxImage::GetMaskBlue() const |
| 296 | { |
| 297 | wxCHECK_MSG( Ok(), 0, _T("invalid image") ); |
| 298 | |
| 299 | return M_IMGDATA->m_maskBlue; |
| 300 | } |
| 301 | |
| 302 | void wxImage::SetMask( bool mask ) |
| 303 | { |
| 304 | wxCHECK_RET( Ok(), _T("invalid image") ); |
| 305 | |
| 306 | M_IMGDATA->m_hasMask = mask; |
| 307 | } |
| 308 | |
| 309 | bool wxImage::HasMask() const |
| 310 | { |
| 311 | wxCHECK_MSG( Ok(), FALSE, _T("invalid image") ); |
| 312 | |
| 313 | return M_IMGDATA->m_hasMask; |
| 314 | } |
| 315 | |
| 316 | int wxImage::GetWidth() const |
| 317 | { |
| 318 | wxCHECK_MSG( Ok(), 0, _T("invalid image") ); |
| 319 | |
| 320 | return M_IMGDATA->m_width; |
| 321 | } |
| 322 | |
| 323 | int wxImage::GetHeight() const |
| 324 | { |
| 325 | wxCHECK_MSG( Ok(), 0, _T("invalid image") ); |
| 326 | |
| 327 | return M_IMGDATA->m_height; |
| 328 | } |
| 329 | |
| 330 | bool wxImage::LoadFile( const wxString& filename, long type ) |
| 331 | { |
| 332 | #if wxUSE_STREAMS |
| 333 | if (wxFileExists(filename)) |
| 334 | { |
| 335 | wxFileInputStream stream(filename); |
| 336 | return LoadFile(stream, type); |
| 337 | } |
| 338 | |
| 339 | else { |
| 340 | wxLogError( _T("Can't load image from file '%s': file does not exist."), filename.c_str() ); |
| 341 | |
| 342 | return FALSE; |
| 343 | } |
| 344 | #else // !wxUSE_STREAMS |
| 345 | return FALSE; |
| 346 | #endif // wxUSE_STREAMS |
| 347 | } |
| 348 | |
| 349 | bool wxImage::LoadFile( const wxString& filename, const wxString& mimetype ) |
| 350 | { |
| 351 | #if wxUSE_STREAMS |
| 352 | if (wxFileExists(filename)) |
| 353 | { |
| 354 | wxFileInputStream stream(filename); |
| 355 | return LoadFile(stream, mimetype); |
| 356 | } |
| 357 | |
| 358 | else { |
| 359 | wxLogError( _T("Can't load image from file '%s': file does not exist."), filename.c_str() ); |
| 360 | |
| 361 | return FALSE; |
| 362 | } |
| 363 | #else // !wxUSE_STREAMS |
| 364 | return FALSE; |
| 365 | #endif // wxUSE_STREAMS |
| 366 | } |
| 367 | |
| 368 | bool wxImage::SaveFile( const wxString& filename, int type ) |
| 369 | { |
| 370 | #if wxUSE_STREAMS |
| 371 | wxFileOutputStream stream(filename); |
| 372 | |
| 373 | if ( stream.LastError() == wxStream_NOERROR ) |
| 374 | return SaveFile(stream, type); |
| 375 | else |
| 376 | #endif // wxUSE_STREAMS |
| 377 | return FALSE; |
| 378 | } |
| 379 | |
| 380 | bool wxImage::SaveFile( const wxString& filename, const wxString& mimetype ) |
| 381 | { |
| 382 | #if wxUSE_STREAMS |
| 383 | wxFileOutputStream stream(filename); |
| 384 | |
| 385 | if ( stream.LastError() == wxStream_NOERROR ) |
| 386 | return SaveFile(stream, mimetype); |
| 387 | else |
| 388 | #endif // wxUSE_STREAMS |
| 389 | return FALSE; |
| 390 | } |
| 391 | |
| 392 | #if wxUSE_STREAMS |
| 393 | bool wxImage::LoadFile( wxInputStream& stream, long type ) |
| 394 | { |
| 395 | UnRef(); |
| 396 | |
| 397 | m_refData = new wxImageRefData; |
| 398 | |
| 399 | wxImageHandler *handler = FindHandler(type); |
| 400 | |
| 401 | if (handler == NULL) |
| 402 | { |
| 403 | wxLogWarning( _T("No image handler for type %d defined."), type ); |
| 404 | |
| 405 | return FALSE; |
| 406 | } |
| 407 | |
| 408 | return handler->LoadFile( this, stream ); |
| 409 | } |
| 410 | |
| 411 | bool wxImage::LoadFile( wxInputStream& stream, const wxString& mimetype ) |
| 412 | { |
| 413 | UnRef(); |
| 414 | |
| 415 | m_refData = new wxImageRefData; |
| 416 | |
| 417 | wxImageHandler *handler = FindHandlerMime(mimetype); |
| 418 | |
| 419 | if (handler == NULL) |
| 420 | { |
| 421 | wxLogWarning( _T("No image handler for type %s defined."), mimetype.GetData() ); |
| 422 | |
| 423 | return FALSE; |
| 424 | } |
| 425 | |
| 426 | return handler->LoadFile( this, stream ); |
| 427 | } |
| 428 | |
| 429 | bool wxImage::SaveFile( wxOutputStream& stream, int type ) |
| 430 | { |
| 431 | wxCHECK_MSG( Ok(), FALSE, _T("invalid image") ); |
| 432 | |
| 433 | wxImageHandler *handler = FindHandler(type); |
| 434 | |
| 435 | if (handler == NULL) |
| 436 | { |
| 437 | wxLogWarning( _T("No image handler for type %d defined."), type ); |
| 438 | |
| 439 | return FALSE; |
| 440 | } |
| 441 | |
| 442 | return handler->SaveFile( this, stream ); |
| 443 | } |
| 444 | |
| 445 | bool wxImage::SaveFile( wxOutputStream& stream, const wxString& mimetype ) |
| 446 | { |
| 447 | wxCHECK_MSG( Ok(), FALSE, _T("invalid image") ); |
| 448 | |
| 449 | wxImageHandler *handler = FindHandlerMime(mimetype); |
| 450 | |
| 451 | if (handler == NULL) |
| 452 | { |
| 453 | wxLogWarning( _T("No image handler for type %s defined."), mimetype.GetData() ); |
| 454 | |
| 455 | return FALSE; |
| 456 | } |
| 457 | |
| 458 | return handler->SaveFile( this, stream ); |
| 459 | } |
| 460 | #endif // wxUSE_STREAMS |
| 461 | |
| 462 | void wxImage::AddHandler( wxImageHandler *handler ) |
| 463 | { |
| 464 | // make sure that the memory will be freed at the program end |
| 465 | sm_handlers.DeleteContents(TRUE); |
| 466 | |
| 467 | sm_handlers.Append( handler ); |
| 468 | } |
| 469 | |
| 470 | void wxImage::InsertHandler( wxImageHandler *handler ) |
| 471 | { |
| 472 | // make sure that the memory will be freed at the program end |
| 473 | sm_handlers.DeleteContents(TRUE); |
| 474 | |
| 475 | sm_handlers.Insert( handler ); |
| 476 | } |
| 477 | |
| 478 | bool wxImage::RemoveHandler( const wxString& name ) |
| 479 | { |
| 480 | wxImageHandler *handler = FindHandler(name); |
| 481 | if (handler) |
| 482 | { |
| 483 | sm_handlers.DeleteObject(handler); |
| 484 | return TRUE; |
| 485 | } |
| 486 | else |
| 487 | return FALSE; |
| 488 | } |
| 489 | |
| 490 | wxImageHandler *wxImage::FindHandler( const wxString& name ) |
| 491 | { |
| 492 | wxNode *node = sm_handlers.First(); |
| 493 | while (node) |
| 494 | { |
| 495 | wxImageHandler *handler = (wxImageHandler*)node->Data(); |
| 496 | if (handler->GetName().Cmp(name) == 0) return handler; |
| 497 | |
| 498 | node = node->Next(); |
| 499 | } |
| 500 | return (wxImageHandler *)NULL; |
| 501 | } |
| 502 | |
| 503 | wxImageHandler *wxImage::FindHandler( const wxString& extension, long bitmapType ) |
| 504 | { |
| 505 | wxNode *node = sm_handlers.First(); |
| 506 | while (node) |
| 507 | { |
| 508 | wxImageHandler *handler = (wxImageHandler*)node->Data(); |
| 509 | if ( (handler->GetExtension().Cmp(extension) == 0) && |
| 510 | (bitmapType == -1 || handler->GetType() == bitmapType) ) |
| 511 | return handler; |
| 512 | node = node->Next(); |
| 513 | } |
| 514 | return (wxImageHandler*)NULL; |
| 515 | } |
| 516 | |
| 517 | wxImageHandler *wxImage::FindHandler( long bitmapType ) |
| 518 | { |
| 519 | wxNode *node = sm_handlers.First(); |
| 520 | while (node) |
| 521 | { |
| 522 | wxImageHandler *handler = (wxImageHandler *)node->Data(); |
| 523 | if (handler->GetType() == bitmapType) return handler; |
| 524 | node = node->Next(); |
| 525 | } |
| 526 | return NULL; |
| 527 | } |
| 528 | |
| 529 | wxImageHandler *wxImage::FindHandlerMime( const wxString& mimetype ) |
| 530 | { |
| 531 | wxNode *node = sm_handlers.First(); |
| 532 | while (node) |
| 533 | { |
| 534 | wxImageHandler *handler = (wxImageHandler *)node->Data(); |
| 535 | if (handler->GetMimeType().IsSameAs(mimetype, FALSE)) return handler; |
| 536 | node = node->Next(); |
| 537 | } |
| 538 | return NULL; |
| 539 | } |
| 540 | |
| 541 | void wxImage::InitStandardHandlers() |
| 542 | { |
| 543 | AddHandler( new wxBMPHandler ); |
| 544 | } |
| 545 | |
| 546 | void wxImage::CleanUpHandlers() |
| 547 | { |
| 548 | wxNode *node = sm_handlers.First(); |
| 549 | while (node) |
| 550 | { |
| 551 | wxImageHandler *handler = (wxImageHandler *)node->Data(); |
| 552 | wxNode *next = node->Next(); |
| 553 | delete handler; |
| 554 | delete node; |
| 555 | node = next; |
| 556 | } |
| 557 | } |
| 558 | |
| 559 | //----------------------------------------------------------------------------- |
| 560 | // wxImageHandler |
| 561 | //----------------------------------------------------------------------------- |
| 562 | |
| 563 | #if !USE_SHARED_LIBRARIES |
| 564 | IMPLEMENT_DYNAMIC_CLASS(wxImageHandler,wxObject) |
| 565 | #endif |
| 566 | |
| 567 | #if wxUSE_STREAMS |
| 568 | bool wxImageHandler::LoadFile( wxImage *WXUNUSED(image), wxInputStream& WXUNUSED(stream) ) |
| 569 | { |
| 570 | return FALSE; |
| 571 | } |
| 572 | |
| 573 | bool wxImageHandler::SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream) ) |
| 574 | { |
| 575 | return FALSE; |
| 576 | } |
| 577 | #endif // wxUSE_STREAMS |
| 578 | |
| 579 | //----------------------------------------------------------------------------- |
| 580 | // wxBMPHandler |
| 581 | //----------------------------------------------------------------------------- |
| 582 | |
| 583 | #if !USE_SHARED_LIBRARIES |
| 584 | IMPLEMENT_DYNAMIC_CLASS(wxBMPHandler,wxImageHandler) |
| 585 | #endif |
| 586 | |
| 587 | #if wxUSE_STREAMS |
| 588 | bool wxBMPHandler::LoadFile( wxImage *image, wxInputStream& stream ) |
| 589 | { |
| 590 | unsigned char *data, *ptr; |
| 591 | int done, i, bpp, planes, comp, ncolors, line, column, |
| 592 | linesize, linepos, rshift = 0, gshift = 0, bshift = 0; |
| 593 | unsigned char aByte; |
| 594 | short int word; |
| 595 | long int dbuf[4], dword, rmask = 0, gmask = 0, bmask = 0, offset, |
| 596 | size; |
| 597 | off_t start_offset = stream.TellI(); |
| 598 | signed char bbuf[4]; |
| 599 | struct _cmap |
| 600 | { |
| 601 | unsigned char r, g, b; |
| 602 | } |
| 603 | *cmap = NULL; |
| 604 | #ifndef BI_RGB |
| 605 | #define BI_RGB 0 |
| 606 | #define BI_RLE8 1 |
| 607 | #define BI_RLE4 2 |
| 608 | #endif |
| 609 | |
| 610 | #ifndef BI_BITFIELDS |
| 611 | #define BI_BITFIELDS 3 |
| 612 | #endif |
| 613 | |
| 614 | image->Destroy(); |
| 615 | |
| 616 | done = 0; |
| 617 | /* |
| 618 | * Reading the bmp header |
| 619 | */ |
| 620 | |
| 621 | stream.Read(&bbuf, 2); |
| 622 | |
| 623 | stream.Read(dbuf, 4 * 4); |
| 624 | |
| 625 | size = dbuf[0]; |
| 626 | offset = dbuf[2]; |
| 627 | |
| 628 | stream.Read(dbuf, 4 * 2); |
| 629 | int width = (int)dbuf[0]; |
| 630 | int height = (int)dbuf[1]; |
| 631 | if (width > 32767) |
| 632 | { |
| 633 | wxLogError( _T("Image width > 32767 pixels for file\n") ); |
| 634 | return FALSE; |
| 635 | } |
| 636 | if (height > 32767) |
| 637 | { |
| 638 | wxLogError( _T("Image height > 32767 pixels for file\n") ); |
| 639 | return FALSE; |
| 640 | } |
| 641 | stream.Read(&word, 2); |
| 642 | planes = (int)word; |
| 643 | stream.Read(&word, 2); |
| 644 | bpp = (int)word; |
| 645 | if (bpp != 1 && bpp != 4 && bpp != 8 && bpp && 16 && bpp != 24 && bpp != 32) |
| 646 | { |
| 647 | wxLogError( _T("unknown bitdepth in file\n") ); |
| 648 | return FALSE; |
| 649 | } |
| 650 | stream.Read(dbuf, 4 * 4); |
| 651 | comp = (int)dbuf[0]; |
| 652 | if (comp != BI_RGB && comp != BI_RLE4 && comp != BI_RLE8 && comp != BI_BITFIELDS) |
| 653 | { |
| 654 | wxLogError( _T("unknown encoding in Windows BMP file\n") ); |
| 655 | return FALSE; |
| 656 | } |
| 657 | stream.Read(dbuf, 4 * 2); |
| 658 | ncolors = (int)dbuf[0]; |
| 659 | if (ncolors == 0) |
| 660 | ncolors = 1 << bpp; |
| 661 | /* some more sanity checks */ |
| 662 | if (((comp == BI_RLE4) && (bpp != 4)) || ((comp == BI_RLE8) && (bpp != 8)) || ((comp == BI_BITFIELDS) && (bpp != 16 && bpp != 32))) |
| 663 | { |
| 664 | wxLogError( _T("encoding of BMP doesn't match bitdepth\n") ); |
| 665 | return FALSE; |
| 666 | } |
| 667 | if (bpp < 16) |
| 668 | { |
| 669 | cmap = (struct _cmap *)malloc(sizeof(struct _cmap) * ncolors); |
| 670 | |
| 671 | if (!cmap) |
| 672 | { |
| 673 | wxLogError( _T("Cannot allocate RAM for color map in BMP file\n") ); |
| 674 | return FALSE; |
| 675 | } |
| 676 | } |
| 677 | else |
| 678 | cmap = NULL; |
| 679 | |
| 680 | image->Create( width, height ); |
| 681 | ptr = image->GetData(); |
| 682 | if (!ptr) |
| 683 | { |
| 684 | wxLogError( _T("Cannot allocate RAM for RGB data in file\n") ); |
| 685 | if (cmap) |
| 686 | free(cmap); |
| 687 | return FALSE; |
| 688 | } |
| 689 | |
| 690 | /* |
| 691 | * Reading the palette, if it exists. |
| 692 | */ |
| 693 | if (bpp < 16 && ncolors != 0) |
| 694 | { |
| 695 | for (i = 0; i < ncolors; i++) |
| 696 | { |
| 697 | stream.Read(bbuf, 4); |
| 698 | cmap[i].b = bbuf[0]; |
| 699 | cmap[i].g = bbuf[1]; |
| 700 | cmap[i].r = bbuf[2]; |
| 701 | } |
| 702 | } |
| 703 | else if (bpp == 16 || bpp == 32) |
| 704 | { |
| 705 | if (comp == BI_BITFIELDS) |
| 706 | { |
| 707 | int bit = 0; |
| 708 | |
| 709 | stream.Read(dbuf, 4 * 3); |
| 710 | bmask = dbuf[0]; |
| 711 | gmask = dbuf[1]; |
| 712 | rmask = dbuf[2]; |
| 713 | /* find shift amount.. ugly, but i can't think of a better way */ |
| 714 | for (bit = 0; bit < bpp; bit++) |
| 715 | { |
| 716 | if (bmask & (1 << bit)) |
| 717 | bshift = bit; |
| 718 | if (gmask & (1 << bit)) |
| 719 | gshift = bit; |
| 720 | if (rmask & (1 << bit)) |
| 721 | rshift = bit; |
| 722 | } |
| 723 | } |
| 724 | else if (bpp == 16) |
| 725 | { |
| 726 | rmask = 0x7C00; |
| 727 | gmask = 0x03E0; |
| 728 | bmask = 0x001F; |
| 729 | rshift = 10; |
| 730 | gshift = 5; |
| 731 | bshift = 0; |
| 732 | } |
| 733 | else if (bpp == 32) |
| 734 | { |
| 735 | rmask = 0x00FF0000; |
| 736 | gmask = 0x0000FF00; |
| 737 | bmask = 0x000000FF; |
| 738 | rshift = 16; |
| 739 | gshift = 8; |
| 740 | bshift = 0; |
| 741 | } |
| 742 | } |
| 743 | |
| 744 | /* |
| 745 | * Reading the image data |
| 746 | */ |
| 747 | stream.SeekI(start_offset + offset); |
| 748 | data = ptr; |
| 749 | |
| 750 | /* set the whole image to the background color */ |
| 751 | if (bpp < 16 && (comp == BI_RLE4 || comp == BI_RLE8)) |
| 752 | { |
| 753 | for (i = 0; i < width * height; i++) |
| 754 | { |
| 755 | *ptr++ = cmap[0].r; |
| 756 | *ptr++ = cmap[0].g; |
| 757 | *ptr++ = cmap[0].b; |
| 758 | } |
| 759 | ptr = data; |
| 760 | } |
| 761 | line = 0; |
| 762 | column = 0; |
| 763 | #define poffset (line * width * 3 + column * 3) |
| 764 | |
| 765 | /* |
| 766 | * BMPs are stored upside down... hmmmmmmmmmm.... |
| 767 | */ |
| 768 | |
| 769 | linesize = ((width * bpp + 31) / 32) * 4; |
| 770 | for (line = (height - 1); line >= 0; line--) |
| 771 | { |
| 772 | linepos = 0; |
| 773 | for (column = 0; column < width;) |
| 774 | { |
| 775 | if (bpp < 16) |
| 776 | { |
| 777 | int index; |
| 778 | |
| 779 | linepos++; |
| 780 | aByte = stream.GetC(); |
| 781 | if (bpp == 1) |
| 782 | { |
| 783 | int bit = 0; |
| 784 | |
| 785 | for (bit = 0; bit < 8; bit++) |
| 786 | { |
| 787 | index = ((aByte & (0x80 >> bit)) ? 1 : 0); |
| 788 | ptr[poffset] = cmap[index].r; |
| 789 | ptr[poffset + 1] = cmap[index].g; |
| 790 | ptr[poffset + 2] = cmap[index].b; |
| 791 | column++; |
| 792 | } |
| 793 | } |
| 794 | else if (bpp == 4) |
| 795 | { |
| 796 | if (comp == BI_RLE4) |
| 797 | { |
| 798 | wxLogError( _T("can't deal with 4bit encoded yet.\n") ); |
| 799 | image->Destroy(); |
| 800 | free(cmap); |
| 801 | return FALSE; |
| 802 | } |
| 803 | else |
| 804 | { |
| 805 | int nibble = 0; |
| 806 | |
| 807 | for (nibble = 0; nibble < 2; nibble++) |
| 808 | { |
| 809 | index = ((aByte & (0xF0 >> nibble * 4)) >> (!nibble * 4)); |
| 810 | if (index >= 16) |
| 811 | index = 15; |
| 812 | ptr[poffset] = cmap[index].r; |
| 813 | ptr[poffset + 1] = cmap[index].g; |
| 814 | ptr[poffset + 2] = cmap[index].b; |
| 815 | column++; |
| 816 | } |
| 817 | } |
| 818 | } |
| 819 | else if (bpp == 8) |
| 820 | { |
| 821 | if (comp == BI_RLE8) |
| 822 | { |
| 823 | unsigned char first; |
| 824 | |
| 825 | first = aByte; |
| 826 | aByte = stream.GetC(); |
| 827 | if (first == 0) |
| 828 | { |
| 829 | if (aByte == 0) |
| 830 | { |
| 831 | /* column = width; */ |
| 832 | } |
| 833 | else if (aByte == 1) |
| 834 | { |
| 835 | column = width; |
| 836 | line = -1; |
| 837 | } |
| 838 | else if (aByte == 2) |
| 839 | { |
| 840 | aByte = stream.GetC(); |
| 841 | column += aByte; |
| 842 | linepos = column * bpp / 8; |
| 843 | aByte = stream.GetC(); |
| 844 | line += aByte; |
| 845 | } |
| 846 | else |
| 847 | { |
| 848 | int absolute = aByte; |
| 849 | |
| 850 | for (i = 0; i < absolute; i++) |
| 851 | { |
| 852 | linepos++; |
| 853 | aByte = stream.GetC(); |
| 854 | ptr[poffset] = cmap[aByte].r; |
| 855 | ptr[poffset + 1] = cmap[aByte].g; |
| 856 | ptr[poffset + 2] = cmap[aByte].b; |
| 857 | column++; |
| 858 | } |
| 859 | if (absolute & 0x01) |
| 860 | aByte = stream.GetC(); |
| 861 | } |
| 862 | } |
| 863 | else |
| 864 | { |
| 865 | for (i = 0; i < first; i++) |
| 866 | { |
| 867 | ptr[poffset] = cmap[aByte].r; |
| 868 | ptr[poffset + 1] = cmap[aByte].g; |
| 869 | ptr[poffset + 2] = cmap[aByte].b; |
| 870 | column++; |
| 871 | linepos++; |
| 872 | } |
| 873 | } |
| 874 | } |
| 875 | else |
| 876 | { |
| 877 | ptr[poffset] = cmap[aByte].r; |
| 878 | ptr[poffset + 1] = cmap[aByte].g; |
| 879 | ptr[poffset + 2] = cmap[aByte].b; |
| 880 | column++; |
| 881 | linepos += size; |
| 882 | } |
| 883 | } |
| 884 | } |
| 885 | else if (bpp == 24) |
| 886 | { |
| 887 | stream.Read(&bbuf, 3); |
| 888 | linepos += 3; |
| 889 | ptr[poffset] = (unsigned char)bbuf[2]; |
| 890 | ptr[poffset + 1] = (unsigned char)bbuf[1]; |
| 891 | ptr[poffset + 2] = (unsigned char)bbuf[0]; |
| 892 | column++; |
| 893 | } |
| 894 | else if (bpp == 16) |
| 895 | { |
| 896 | unsigned char temp; |
| 897 | |
| 898 | stream.Read(&word, 2); |
| 899 | linepos += 2; |
| 900 | temp = (word & rmask) >> rshift; |
| 901 | ptr[poffset] = temp; |
| 902 | temp = (word & gmask) >> gshift; |
| 903 | ptr[poffset + 1] = temp; |
| 904 | temp = (word & bmask) >> gshift; |
| 905 | ptr[poffset + 2] = temp; |
| 906 | column++; |
| 907 | } |
| 908 | else |
| 909 | { |
| 910 | unsigned char temp; |
| 911 | |
| 912 | stream.Read(&dword, 4); |
| 913 | linepos += 4; |
| 914 | temp = (dword & rmask) >> rshift; |
| 915 | ptr[poffset] = temp; |
| 916 | temp = (dword & gmask) >> gshift; |
| 917 | ptr[poffset + 1] = temp; |
| 918 | temp = (dword & bmask) >> bshift; |
| 919 | ptr[poffset + 2] = temp; |
| 920 | column++; |
| 921 | } |
| 922 | } |
| 923 | while ((linepos < linesize) && (comp != 1) && (comp != 2)) |
| 924 | { |
| 925 | stream.Read(&aByte, 1); |
| 926 | linepos += 1; |
| 927 | if (stream.LastError() != wxStream_NOERROR) |
| 928 | break; |
| 929 | } |
| 930 | } |
| 931 | if (cmap) free(cmap); |
| 932 | |
| 933 | image->SetMask( FALSE ); |
| 934 | |
| 935 | return TRUE; |
| 936 | } |
| 937 | #endif // wxUSE_STREAMS |
| 938 | |
| 939 | #ifdef __WXMSW__ |
| 940 | |
| 941 | wxBitmap wxImage::ConvertToBitmap() const |
| 942 | { |
| 943 | // sizeLimit is the MS upper limit for the DIB size |
| 944 | int sizeLimit = 1024*768*3; |
| 945 | |
| 946 | // width and height of the device-dependent bitmap |
| 947 | int width = GetWidth(); |
| 948 | int bmpHeight = GetHeight(); |
| 949 | |
| 950 | // calc the number of bytes per scanline and padding |
| 951 | int bytePerLine = width*3; |
| 952 | int sizeDWORD = sizeof( DWORD ); |
| 953 | div_t lineBoundary = div( bytePerLine, sizeDWORD ); |
| 954 | int padding = 0; |
| 955 | if( lineBoundary.rem > 0 ) |
| 956 | { |
| 957 | padding = sizeDWORD - lineBoundary.rem; |
| 958 | bytePerLine += padding; |
| 959 | } |
| 960 | // calc the number of DIBs and heights of DIBs |
| 961 | int numDIB = 1; |
| 962 | int hRemain = 0; |
| 963 | int height = sizeLimit/bytePerLine; |
| 964 | if( height >= bmpHeight ) |
| 965 | height = bmpHeight; |
| 966 | else |
| 967 | { |
| 968 | div_t result = div( bmpHeight, height ); |
| 969 | numDIB = result.quot; |
| 970 | hRemain = result.rem; |
| 971 | if( hRemain >0 ) numDIB++; |
| 972 | } |
| 973 | |
| 974 | // set bitmap parameters |
| 975 | wxBitmap bitmap; |
| 976 | wxCHECK_MSG( Ok(), bitmap, _T("invalid image") ); |
| 977 | bitmap.SetWidth( width ); |
| 978 | bitmap.SetHeight( bmpHeight ); |
| 979 | bitmap.SetDepth( wxDisplayDepth() ); |
| 980 | |
| 981 | // create a DIB header |
| 982 | int headersize = sizeof(BITMAPINFOHEADER); |
| 983 | LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize ); |
| 984 | wxCHECK_MSG( lpDIBh, bitmap, _T("could not allocate memory for DIB header") ); |
| 985 | // Fill in the DIB header |
| 986 | lpDIBh->bmiHeader.biSize = headersize; |
| 987 | lpDIBh->bmiHeader.biWidth = (DWORD)width; |
| 988 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); |
| 989 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; |
| 990 | // the general formula for biSizeImage: |
| 991 | // ( ( ( ((DWORD)width*24) +31 ) & ~31 ) >> 3 ) * height; |
| 992 | lpDIBh->bmiHeader.biPlanes = 1; |
| 993 | lpDIBh->bmiHeader.biBitCount = 24; |
| 994 | lpDIBh->bmiHeader.biCompression = BI_RGB; |
| 995 | lpDIBh->bmiHeader.biClrUsed = 0; |
| 996 | // These seem not really needed for our purpose here. |
| 997 | lpDIBh->bmiHeader.biClrImportant = 0; |
| 998 | lpDIBh->bmiHeader.biXPelsPerMeter = 0; |
| 999 | lpDIBh->bmiHeader.biYPelsPerMeter = 0; |
| 1000 | // memory for DIB data |
| 1001 | unsigned char *lpBits; |
| 1002 | lpBits = (unsigned char *)malloc( lpDIBh->bmiHeader.biSizeImage ); |
| 1003 | if( !lpBits ) |
| 1004 | { |
| 1005 | wxFAIL_MSG( _T("could not allocate memory for DIB") ); |
| 1006 | free( lpDIBh ); |
| 1007 | return bitmap; |
| 1008 | } |
| 1009 | |
| 1010 | // create and set the device-dependent bitmap |
| 1011 | HDC hdc = ::GetDC(NULL); |
| 1012 | HDC memdc = ::CreateCompatibleDC( hdc ); |
| 1013 | HBITMAP hbitmap; |
| 1014 | hbitmap = ::CreateCompatibleBitmap( hdc, width, bmpHeight ); |
| 1015 | ::SelectObject( memdc, hbitmap); |
| 1016 | |
| 1017 | // copy image data into DIB data and then into DDB (in a loop) |
| 1018 | unsigned char *data = GetData(); |
| 1019 | int i, j, n; |
| 1020 | int origin = 0; |
| 1021 | unsigned char *ptdata = data; |
| 1022 | unsigned char *ptbits; |
| 1023 | |
| 1024 | for( n=0; n<numDIB; n++ ) |
| 1025 | { |
| 1026 | if( numDIB > 1 && n == numDIB-1 && hRemain > 0 ) |
| 1027 | { |
| 1028 | // redefine height and size of the (possibly) last smaller DIB |
| 1029 | // memory is not reallocated |
| 1030 | height = hRemain; |
| 1031 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); |
| 1032 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; |
| 1033 | } |
| 1034 | ptbits = lpBits; |
| 1035 | |
| 1036 | for( j=0; j<height; j++ ) |
| 1037 | { |
| 1038 | for( i=0; i<width; i++ ) |
| 1039 | { |
| 1040 | *(ptbits++) = *(ptdata+2); |
| 1041 | *(ptbits++) = *(ptdata+1); |
| 1042 | *(ptbits++) = *(ptdata ); |
| 1043 | ptdata += 3; |
| 1044 | } |
| 1045 | for( i=0; i< padding; i++ ) *(ptbits++) = 0; |
| 1046 | } |
| 1047 | ::StretchDIBits( memdc, 0, origin, width, height,\ |
| 1048 | 0, 0, width, height, lpBits, lpDIBh, DIB_RGB_COLORS, SRCCOPY); |
| 1049 | origin += height; |
| 1050 | // if numDIB = 1, lines below can also be used |
| 1051 | // hbitmap = CreateDIBitmap( hdc, &(lpDIBh->bmiHeader), CBM_INIT, lpBits, lpDIBh, DIB_RGB_COLORS ); |
| 1052 | // The above line is equivalent to the following two lines. |
| 1053 | // hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); |
| 1054 | // ::SetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS); |
| 1055 | // or the following lines |
| 1056 | // hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); |
| 1057 | // HDC memdc = ::CreateCompatibleDC( hdc ); |
| 1058 | // ::SelectObject( memdc, hbitmap); |
| 1059 | // ::SetDIBitsToDevice( memdc, 0, 0, width, height, |
| 1060 | // 0, 0, 0, height, (void *)lpBits, lpDIBh, DIB_RGB_COLORS); |
| 1061 | // ::SelectObject( memdc, 0 ); |
| 1062 | // ::DeleteDC( memdc ); |
| 1063 | } |
| 1064 | bitmap.SetHBITMAP( (WXHBITMAP) hbitmap ); |
| 1065 | |
| 1066 | // similarly, created an mono-bitmap for the possible mask |
| 1067 | if( HasMask() ) |
| 1068 | { |
| 1069 | hbitmap = ::CreateBitmap( (WORD)width, (WORD)bmpHeight, 1, 1, NULL ); |
| 1070 | ::SelectObject( memdc, hbitmap); |
| 1071 | if( numDIB == 1 ) height = bmpHeight; |
| 1072 | else height = sizeLimit/bytePerLine; |
| 1073 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); |
| 1074 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; |
| 1075 | origin = 0; |
| 1076 | unsigned char r = GetMaskRed(); |
| 1077 | unsigned char g = GetMaskGreen(); |
| 1078 | unsigned char b = GetMaskBlue(); |
| 1079 | unsigned char zero = 0, one = 255; |
| 1080 | ptdata = data; |
| 1081 | for( n=0; n<numDIB; n++ ) |
| 1082 | { |
| 1083 | if( numDIB > 1 && n == numDIB - 1 && hRemain > 0 ) |
| 1084 | { |
| 1085 | // redefine height and size of the (possibly) last smaller DIB |
| 1086 | // memory is not reallocated |
| 1087 | height = hRemain; |
| 1088 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); |
| 1089 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; |
| 1090 | } |
| 1091 | ptbits = lpBits; |
| 1092 | for( int j=0; j<height; j++ ) |
| 1093 | { |
| 1094 | for(i=0; i<width; i++ ) |
| 1095 | { |
| 1096 | if( (*(ptdata++)!=r) | (*(ptdata++)!=g) | (*(ptdata++)!=b) ) |
| 1097 | { |
| 1098 | *(ptbits++) = one; |
| 1099 | *(ptbits++) = one; |
| 1100 | *(ptbits++) = one; |
| 1101 | } |
| 1102 | else |
| 1103 | { |
| 1104 | *(ptbits++) = zero; |
| 1105 | *(ptbits++) = zero; |
| 1106 | *(ptbits++) = zero; |
| 1107 | } |
| 1108 | } |
| 1109 | for( i=0; i< padding; i++ ) *(ptbits++) = zero; |
| 1110 | } |
| 1111 | ::StretchDIBits( memdc, 0, origin, width, height,\ |
| 1112 | 0, 0, width, height, lpBits, lpDIBh, DIB_RGB_COLORS, SRCCOPY); |
| 1113 | origin += height; |
| 1114 | } |
| 1115 | // create a wxMask object |
| 1116 | wxMask *mask = new wxMask(); |
| 1117 | mask->SetMaskBitmap( (WXHBITMAP) hbitmap ); |
| 1118 | bitmap.SetMask( mask ); |
| 1119 | // It will be deleted when the wxBitmap object is deleted (as of 01/1999) |
| 1120 | /* The following can also be used but is slow to run |
| 1121 | wxColour colour( GetMaskRed(), GetMaskGreen(), GetMaskBlue()); |
| 1122 | wxMask *mask = new wxMask( bitmap, colour ); |
| 1123 | bitmap.SetMask( mask ); |
| 1124 | */ |
| 1125 | } |
| 1126 | |
| 1127 | // free allocated resources |
| 1128 | ::SelectObject( memdc, 0 ); |
| 1129 | ::DeleteDC( memdc ); |
| 1130 | ::ReleaseDC(NULL, hdc); |
| 1131 | free(lpDIBh); |
| 1132 | free(lpBits); |
| 1133 | |
| 1134 | // check the wxBitmap object |
| 1135 | if( bitmap.GetHBITMAP() ) |
| 1136 | bitmap.SetOk( TRUE ); |
| 1137 | else |
| 1138 | bitmap.SetOk( FALSE ); |
| 1139 | |
| 1140 | return bitmap; |
| 1141 | } |
| 1142 | |
| 1143 | wxImage::wxImage( const wxBitmap &bitmap ) |
| 1144 | { |
| 1145 | // check the bitmap |
| 1146 | if( !bitmap.Ok() ) |
| 1147 | { |
| 1148 | wxFAIL_MSG( _T("invalid bitmap") ); |
| 1149 | return; |
| 1150 | } |
| 1151 | |
| 1152 | // create an wxImage object |
| 1153 | int width = bitmap.GetWidth(); |
| 1154 | int height = bitmap.GetHeight(); |
| 1155 | Create( width, height ); |
| 1156 | unsigned char *data = GetData(); |
| 1157 | if( !data ) |
| 1158 | { |
| 1159 | wxFAIL_MSG( _T("could not allocate data for image") ); |
| 1160 | return; |
| 1161 | } |
| 1162 | |
| 1163 | // calc the number of bytes per scanline and padding in the DIB |
| 1164 | int bytePerLine = width*3; |
| 1165 | int sizeDWORD = sizeof( DWORD ); |
| 1166 | div_t lineBoundary = div( bytePerLine, sizeDWORD ); |
| 1167 | int padding = 0; |
| 1168 | if( lineBoundary.rem > 0 ) |
| 1169 | { |
| 1170 | padding = sizeDWORD - lineBoundary.rem; |
| 1171 | bytePerLine += padding; |
| 1172 | } |
| 1173 | |
| 1174 | // create a DIB header |
| 1175 | int headersize = sizeof(BITMAPINFOHEADER); |
| 1176 | LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize ); |
| 1177 | if( !lpDIBh ) |
| 1178 | { |
| 1179 | wxFAIL_MSG( _T("could not allocate data for DIB header") ); |
| 1180 | free( data ); |
| 1181 | return; |
| 1182 | } |
| 1183 | // Fill in the DIB header |
| 1184 | lpDIBh->bmiHeader.biSize = headersize; |
| 1185 | lpDIBh->bmiHeader.biWidth = width; |
| 1186 | lpDIBh->bmiHeader.biHeight = -height; |
| 1187 | lpDIBh->bmiHeader.biSizeImage = bytePerLine * height; |
| 1188 | lpDIBh->bmiHeader.biPlanes = 1; |
| 1189 | lpDIBh->bmiHeader.biBitCount = 24; |
| 1190 | lpDIBh->bmiHeader.biCompression = BI_RGB; |
| 1191 | lpDIBh->bmiHeader.biClrUsed = 0; |
| 1192 | // These seem not really needed for our purpose here. |
| 1193 | lpDIBh->bmiHeader.biClrImportant = 0; |
| 1194 | lpDIBh->bmiHeader.biXPelsPerMeter = 0; |
| 1195 | lpDIBh->bmiHeader.biYPelsPerMeter = 0; |
| 1196 | // memory for DIB data |
| 1197 | unsigned char *lpBits; |
| 1198 | lpBits = (unsigned char *) malloc( lpDIBh->bmiHeader.biSizeImage ); |
| 1199 | if( !lpBits ) |
| 1200 | { |
| 1201 | wxFAIL_MSG( _T("could not allocate data for DIB") ); |
| 1202 | free( data ); |
| 1203 | free( lpDIBh ); |
| 1204 | return; |
| 1205 | } |
| 1206 | |
| 1207 | // copy data from the device-dependent bitmap to the DIB |
| 1208 | HDC hdc = ::GetDC(NULL); |
| 1209 | HBITMAP hbitmap; |
| 1210 | hbitmap = (HBITMAP) bitmap.GetHBITMAP(); |
| 1211 | ::GetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); |
| 1212 | |
| 1213 | // copy DIB data into the wxImage object |
| 1214 | int i, j; |
| 1215 | unsigned char *ptdata = data; |
| 1216 | unsigned char *ptbits = lpBits; |
| 1217 | for( i=0; i<height; i++ ) |
| 1218 | { |
| 1219 | for( j=0; j<width; j++ ) |
| 1220 | { |
| 1221 | *(ptdata++) = *(ptbits+2); |
| 1222 | *(ptdata++) = *(ptbits+1); |
| 1223 | *(ptdata++) = *(ptbits ); |
| 1224 | ptbits += 3; |
| 1225 | } |
| 1226 | ptbits += padding; |
| 1227 | } |
| 1228 | |
| 1229 | // similarly, set data according to the possible mask bitmap |
| 1230 | if( bitmap.GetMask() && bitmap.GetMask()->GetMaskBitmap() ) |
| 1231 | { |
| 1232 | hbitmap = (HBITMAP) bitmap.GetMask()->GetMaskBitmap(); |
| 1233 | // memory DC created, color set, data copied, and memory DC deleted |
| 1234 | HDC memdc = ::CreateCompatibleDC( hdc ); |
| 1235 | ::SetTextColor( memdc, RGB( 0, 0, 0 ) ); |
| 1236 | ::SetBkColor( memdc, RGB( 255, 255, 255 ) ); |
| 1237 | ::GetDIBits( memdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); |
| 1238 | ::DeleteDC( memdc ); |
| 1239 | // background color set to RGB(16,16,16) in consistent with wxGTK |
| 1240 | unsigned char r=16, g=16, b=16; |
| 1241 | ptdata = data; |
| 1242 | ptbits = lpBits; |
| 1243 | for( i=0; i<height; i++ ) |
| 1244 | { |
| 1245 | for( j=0; j<width; j++ ) |
| 1246 | { |
| 1247 | if( *ptbits != 0 ) |
| 1248 | ptdata += 3; |
| 1249 | else |
| 1250 | { |
| 1251 | *(ptdata++) = r; |
| 1252 | *(ptdata++) = g; |
| 1253 | *(ptdata++) = b; |
| 1254 | } |
| 1255 | ptbits += 3; |
| 1256 | } |
| 1257 | ptbits += padding; |
| 1258 | } |
| 1259 | SetMaskColour( r, g, b ); |
| 1260 | SetMask( TRUE ); |
| 1261 | } |
| 1262 | else |
| 1263 | { |
| 1264 | SetMask( FALSE ); |
| 1265 | } |
| 1266 | // free allocated resources |
| 1267 | ::ReleaseDC(NULL, hdc); |
| 1268 | free(lpDIBh); |
| 1269 | free(lpBits); |
| 1270 | } |
| 1271 | |
| 1272 | #endif |
| 1273 | |
| 1274 | #ifdef __WXGTK__ |
| 1275 | |
| 1276 | #include "gtk/gtk.h" |
| 1277 | #include "gdk/gdk.h" |
| 1278 | #include "gdk/gdkx.h" |
| 1279 | |
| 1280 | wxBitmap wxImage::ConvertToBitmap() const |
| 1281 | { |
| 1282 | wxBitmap bitmap; |
| 1283 | |
| 1284 | wxCHECK_MSG( Ok(), bitmap, _T("invalid image") ); |
| 1285 | |
| 1286 | int width = GetWidth(); |
| 1287 | int height = GetHeight(); |
| 1288 | |
| 1289 | bitmap.SetHeight( height ); |
| 1290 | bitmap.SetWidth( width ); |
| 1291 | |
| 1292 | // Create picture |
| 1293 | |
| 1294 | GdkImage *data_image = |
| 1295 | gdk_image_new( GDK_IMAGE_FASTEST, gdk_visual_get_system(), width, height ); |
| 1296 | |
| 1297 | bitmap.SetPixmap( gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, -1 ) ); |
| 1298 | |
| 1299 | // Create mask |
| 1300 | |
| 1301 | GdkImage *mask_image = (GdkImage*) NULL; |
| 1302 | |
| 1303 | if (HasMask()) |
| 1304 | { |
| 1305 | unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height ); |
| 1306 | |
| 1307 | mask_image = gdk_image_new_bitmap( gdk_visual_get_system(), mask_data, width, height ); |
| 1308 | |
| 1309 | wxMask *mask = new wxMask(); |
| 1310 | mask->m_bitmap = gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, 1 ); |
| 1311 | |
| 1312 | bitmap.SetMask( mask ); |
| 1313 | } |
| 1314 | |
| 1315 | // Retrieve depth |
| 1316 | |
| 1317 | GdkVisual *visual = gdk_window_get_visual( bitmap.GetPixmap() ); |
| 1318 | if (visual == NULL) visual = gdk_window_get_visual( (GdkWindow*) &gdk_root_parent ); |
| 1319 | int bpp = visual->depth; |
| 1320 | |
| 1321 | bitmap.SetDepth( bpp ); |
| 1322 | |
| 1323 | if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15; |
| 1324 | if (bpp < 8) bpp = 8; |
| 1325 | |
| 1326 | // Render |
| 1327 | |
| 1328 | enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR }; |
| 1329 | byte_order b_o = RGB; |
| 1330 | |
| 1331 | if (bpp >= 24) |
| 1332 | { |
| 1333 | GdkVisual *visual = gdk_visual_get_system(); |
| 1334 | if ((visual->red_mask > visual->green_mask) && (visual->green_mask > visual->blue_mask)) b_o = RGB; |
| 1335 | else if ((visual->red_mask > visual->blue_mask) && (visual->blue_mask > visual->green_mask)) b_o = RGB; |
| 1336 | else if ((visual->blue_mask > visual->red_mask) && (visual->red_mask > visual->green_mask)) b_o = BRG; |
| 1337 | else if ((visual->blue_mask > visual->green_mask) && (visual->green_mask > visual->red_mask)) b_o = BGR; |
| 1338 | else if ((visual->green_mask > visual->red_mask) && (visual->red_mask > visual->blue_mask)) b_o = GRB; |
| 1339 | else if ((visual->green_mask > visual->blue_mask) && (visual->blue_mask > visual->red_mask)) b_o = GBR; |
| 1340 | } |
| 1341 | |
| 1342 | int r_mask = GetMaskRed(); |
| 1343 | int g_mask = GetMaskGreen(); |
| 1344 | int b_mask = GetMaskBlue(); |
| 1345 | |
| 1346 | unsigned char* data = GetData(); |
| 1347 | |
| 1348 | int index = 0; |
| 1349 | for (int y = 0; y < height; y++) |
| 1350 | { |
| 1351 | for (int x = 0; x < width; x++) |
| 1352 | { |
| 1353 | int r = data[index]; |
| 1354 | index++; |
| 1355 | int g = data[index]; |
| 1356 | index++; |
| 1357 | int b = data[index]; |
| 1358 | index++; |
| 1359 | |
| 1360 | if (HasMask()) |
| 1361 | { |
| 1362 | if ((r == r_mask) && (b == b_mask) && (g == g_mask)) |
| 1363 | gdk_image_put_pixel( mask_image, x, y, 1 ); |
| 1364 | else |
| 1365 | gdk_image_put_pixel( mask_image, x, y, 0 ); |
| 1366 | } |
| 1367 | |
| 1368 | if (HasMask()) |
| 1369 | { |
| 1370 | if ((r == r_mask) && (b == b_mask) && (g == g_mask)) |
| 1371 | gdk_image_put_pixel( mask_image, x, y, 1 ); |
| 1372 | else |
| 1373 | gdk_image_put_pixel( mask_image, x, y, 0 ); |
| 1374 | } |
| 1375 | |
| 1376 | switch (bpp) |
| 1377 | { |
| 1378 | case 8: |
| 1379 | { |
| 1380 | int pixel = -1; |
| 1381 | if (wxTheApp->m_colorCube) |
| 1382 | { |
| 1383 | pixel = wxTheApp->m_colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ]; |
| 1384 | } |
| 1385 | else |
| 1386 | { |
| 1387 | GdkColormap *cmap = gtk_widget_get_default_colormap(); |
| 1388 | GdkColor *colors = cmap->colors; |
| 1389 | int max = 3 * (65536); |
| 1390 | |
| 1391 | for (int i = 0; i < cmap->size; i++) |
| 1392 | { |
| 1393 | int rdiff = (r << 8) - colors[i].red; |
| 1394 | int gdiff = (g << 8) - colors[i].green; |
| 1395 | int bdiff = (b << 8) - colors[i].blue; |
| 1396 | int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff); |
| 1397 | if (sum < max) { pixel = i; max = sum; } |
| 1398 | } |
| 1399 | } |
| 1400 | |
| 1401 | gdk_image_put_pixel( data_image, x, y, pixel ); |
| 1402 | |
| 1403 | break; |
| 1404 | } |
| 1405 | case 15: |
| 1406 | { |
| 1407 | guint32 pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); |
| 1408 | gdk_image_put_pixel( data_image, x, y, pixel ); |
| 1409 | break; |
| 1410 | } |
| 1411 | case 16: |
| 1412 | { |
| 1413 | guint32 pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); |
| 1414 | gdk_image_put_pixel( data_image, x, y, pixel ); |
| 1415 | break; |
| 1416 | } |
| 1417 | case 32: |
| 1418 | case 24: |
| 1419 | { |
| 1420 | guint32 pixel = 0; |
| 1421 | switch (b_o) |
| 1422 | { |
| 1423 | case RGB: pixel = (r << 16) | (g << 8) | b; break; |
| 1424 | case RBG: pixel = (r << 16) | (b << 8) | g; break; |
| 1425 | case BRG: pixel = (b << 16) | (r << 8) | g; break; |
| 1426 | case BGR: pixel = (b << 16) | (g << 8) | r; break; |
| 1427 | case GRB: pixel = (g << 16) | (r << 8) | b; break; |
| 1428 | case GBR: pixel = (g << 16) | (b << 8) | r; break; |
| 1429 | } |
| 1430 | gdk_image_put_pixel( data_image, x, y, pixel ); |
| 1431 | } |
| 1432 | default: break; |
| 1433 | } |
| 1434 | } // for |
| 1435 | } // for |
| 1436 | |
| 1437 | // Blit picture |
| 1438 | |
| 1439 | GdkGC *data_gc = gdk_gc_new( bitmap.GetPixmap() ); |
| 1440 | |
| 1441 | gdk_draw_image( bitmap.GetPixmap(), data_gc, data_image, 0, 0, 0, 0, width, height ); |
| 1442 | |
| 1443 | gdk_image_destroy( data_image ); |
| 1444 | gdk_gc_unref( data_gc ); |
| 1445 | |
| 1446 | // Blit mask |
| 1447 | |
| 1448 | if (HasMask()) |
| 1449 | { |
| 1450 | GdkGC *mask_gc = gdk_gc_new( bitmap.GetMask()->GetBitmap() ); |
| 1451 | |
| 1452 | gdk_draw_image( bitmap.GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height ); |
| 1453 | |
| 1454 | gdk_image_destroy( mask_image ); |
| 1455 | gdk_gc_unref( mask_gc ); |
| 1456 | } |
| 1457 | |
| 1458 | return bitmap; |
| 1459 | } |
| 1460 | |
| 1461 | wxImage::wxImage( const wxBitmap &bitmap ) |
| 1462 | { |
| 1463 | wxCHECK_RET( bitmap.Ok(), _T("invalid bitmap") ); |
| 1464 | |
| 1465 | GdkImage *gdk_image = gdk_image_get( bitmap.GetPixmap(), |
| 1466 | 0, 0, |
| 1467 | bitmap.GetWidth(), bitmap.GetHeight() ); |
| 1468 | |
| 1469 | wxCHECK_RET( gdk_image, _T("couldn't create image") ); |
| 1470 | |
| 1471 | Create( bitmap.GetWidth(), bitmap.GetHeight() ); |
| 1472 | char unsigned *data = GetData(); |
| 1473 | |
| 1474 | if (!data) |
| 1475 | { |
| 1476 | gdk_image_destroy( gdk_image ); |
| 1477 | wxFAIL_MSG( _T("couldn't create image") ); |
| 1478 | return; |
| 1479 | } |
| 1480 | |
| 1481 | GdkImage *gdk_image_mask = (GdkImage*) NULL; |
| 1482 | if (bitmap.GetMask()) |
| 1483 | { |
| 1484 | gdk_image_mask = gdk_image_get( bitmap.GetMask()->GetBitmap(), |
| 1485 | 0, 0, |
| 1486 | bitmap.GetWidth(), bitmap.GetHeight() ); |
| 1487 | |
| 1488 | SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable |
| 1489 | } |
| 1490 | |
| 1491 | GdkVisual *visual = gdk_window_get_visual( bitmap.GetPixmap() ); |
| 1492 | if (visual == NULL) visual = gdk_window_get_visual( (GdkWindow*) &gdk_root_parent ); |
| 1493 | int bpp = visual->depth; |
| 1494 | if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15; |
| 1495 | |
| 1496 | GdkColormap *cmap = gtk_widget_get_default_colormap(); |
| 1497 | |
| 1498 | long pos = 0; |
| 1499 | for (int j = 0; j < bitmap.GetHeight(); j++) |
| 1500 | { |
| 1501 | for (int i = 0; i < bitmap.GetWidth(); i++) |
| 1502 | { |
| 1503 | int pixel = gdk_image_get_pixel( gdk_image, i, j ); |
| 1504 | if (bpp <= 8) |
| 1505 | { |
| 1506 | data[pos] = cmap->colors[pixel].red >> 8; |
| 1507 | data[pos+1] = cmap->colors[pixel].green >> 8; |
| 1508 | data[pos+2] = cmap->colors[pixel].blue >> 8; |
| 1509 | } else if (bpp == 15) |
| 1510 | { |
| 1511 | data[pos] = (pixel >> 7) & 0xf8; |
| 1512 | data[pos+1] = (pixel >> 2) & 0xf8; |
| 1513 | data[pos+2] = (pixel << 3) & 0xf8; |
| 1514 | } else if (bpp == 16) |
| 1515 | { |
| 1516 | data[pos] = (pixel >> 8) & 0xf8; |
| 1517 | data[pos+1] = (pixel >> 3) & 0xfc; |
| 1518 | data[pos+2] = (pixel << 3) & 0xf8; |
| 1519 | } else |
| 1520 | { |
| 1521 | data[pos] = (pixel >> 16) & 0xff; |
| 1522 | data[pos+1] = (pixel >> 8) & 0xff; |
| 1523 | data[pos+2] = pixel & 0xff; |
| 1524 | } |
| 1525 | |
| 1526 | if (gdk_image_mask) |
| 1527 | { |
| 1528 | int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j ); |
| 1529 | if (mask_pixel == 0) |
| 1530 | { |
| 1531 | data[pos] = 16; |
| 1532 | data[pos+1] = 16; |
| 1533 | data[pos+2] = 16; |
| 1534 | } |
| 1535 | } |
| 1536 | |
| 1537 | pos += 3; |
| 1538 | } |
| 1539 | } |
| 1540 | |
| 1541 | gdk_image_destroy( gdk_image ); |
| 1542 | if (gdk_image_mask) gdk_image_destroy( gdk_image_mask ); |
| 1543 | } |
| 1544 | |
| 1545 | #endif |
| 1546 | |
| 1547 | #ifdef __WXMOTIF__ |
| 1548 | |
| 1549 | #include <Xm/Xm.h> |
| 1550 | #include "wx/utils.h" |
| 1551 | #include <math.h> |
| 1552 | |
| 1553 | wxBitmap wxImage::ConvertToBitmap() const |
| 1554 | { |
| 1555 | wxBitmap bitmap; |
| 1556 | |
| 1557 | wxCHECK_MSG( Ok(), bitmap, _T("invalid image") ); |
| 1558 | |
| 1559 | int width = GetWidth(); |
| 1560 | int height = GetHeight(); |
| 1561 | |
| 1562 | bitmap.SetHeight( height ); |
| 1563 | bitmap.SetWidth( width ); |
| 1564 | |
| 1565 | Display *dpy = (Display*) wxGetDisplay(); |
| 1566 | Visual* vis = DefaultVisual( dpy, DefaultScreen( dpy ) ); |
| 1567 | int bpp = DefaultDepth( dpy, DefaultScreen( dpy ) ); |
| 1568 | |
| 1569 | // Create image |
| 1570 | |
| 1571 | XImage *data_image = XCreateImage( dpy, vis, bpp, ZPixmap, 0, 0, width, height, 32, 0 ); |
| 1572 | data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height ); |
| 1573 | |
| 1574 | bitmap.Create( width, height, bpp ); |
| 1575 | |
| 1576 | /* |
| 1577 | // Create mask |
| 1578 | |
| 1579 | GdkImage *mask_image = (GdkImage*) NULL; |
| 1580 | |
| 1581 | if (HasMask()) |
| 1582 | { |
| 1583 | unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height ); |
| 1584 | |
| 1585 | mask_image = gdk_image_new_bitmap( gdk_visual_get_system(), mask_data, width, height ); |
| 1586 | |
| 1587 | wxMask *mask = new wxMask(); |
| 1588 | mask->m_bitmap = gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, 1 ); |
| 1589 | |
| 1590 | bitmap.SetMask( mask ); |
| 1591 | } |
| 1592 | */ |
| 1593 | |
| 1594 | // Retrieve depth info |
| 1595 | |
| 1596 | XVisualInfo vinfo_template; |
| 1597 | XVisualInfo *vi; |
| 1598 | |
| 1599 | vinfo_template.visual = vis; |
| 1600 | vinfo_template.visualid = XVisualIDFromVisual( vis ); |
| 1601 | vinfo_template.depth = bpp; |
| 1602 | int nitem = 0; |
| 1603 | |
| 1604 | vi = XGetVisualInfo( dpy, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem ); |
| 1605 | |
| 1606 | if (!vi) |
| 1607 | { |
| 1608 | printf("no visual.\n" ); |
| 1609 | return wxNullBitmap; |
| 1610 | } |
| 1611 | |
| 1612 | XFree( vi ); |
| 1613 | |
| 1614 | if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15; |
| 1615 | if (bpp < 8) bpp = 8; |
| 1616 | |
| 1617 | // Render |
| 1618 | |
| 1619 | enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR }; |
| 1620 | byte_order b_o = RGB; |
| 1621 | |
| 1622 | if (bpp >= 24) |
| 1623 | { |
| 1624 | if ((vi->red_mask > vi->green_mask) && (vi->green_mask > vi->blue_mask)) b_o = RGB; |
| 1625 | else if ((vi->red_mask > vi->blue_mask) && (vi->blue_mask > vi->green_mask)) b_o = RGB; |
| 1626 | else if ((vi->blue_mask > vi->red_mask) && (vi->red_mask > vi->green_mask)) b_o = BRG; |
| 1627 | else if ((vi->blue_mask > vi->green_mask) && (vi->green_mask > vi->red_mask)) b_o = BGR; |
| 1628 | else if ((vi->green_mask > vi->red_mask) && (vi->red_mask > vi->blue_mask)) b_o = GRB; |
| 1629 | else if ((vi->green_mask > vi->blue_mask) && (vi->blue_mask > vi->red_mask)) b_o = GBR; |
| 1630 | } |
| 1631 | |
| 1632 | /* |
| 1633 | int r_mask = GetMaskRed(); |
| 1634 | int g_mask = GetMaskGreen(); |
| 1635 | int b_mask = GetMaskBlue(); |
| 1636 | */ |
| 1637 | |
| 1638 | XColor colors[256]; |
| 1639 | if (bpp == 8) |
| 1640 | { |
| 1641 | Colormap cmap = (Colormap) wxTheApp->GetMainColormap( dpy ); |
| 1642 | |
| 1643 | for (int i = 0; i < 256; i++) colors[i].pixel = i; |
| 1644 | XQueryColors( dpy, cmap, colors, 256 ); |
| 1645 | } |
| 1646 | |
| 1647 | unsigned char* data = GetData(); |
| 1648 | |
| 1649 | int index = 0; |
| 1650 | for (int y = 0; y < height; y++) |
| 1651 | { |
| 1652 | for (int x = 0; x < width; x++) |
| 1653 | { |
| 1654 | int r = data[index]; |
| 1655 | index++; |
| 1656 | int g = data[index]; |
| 1657 | index++; |
| 1658 | int b = data[index]; |
| 1659 | index++; |
| 1660 | |
| 1661 | /* |
| 1662 | if (HasMask()) |
| 1663 | { |
| 1664 | if ((r == r_mask) && (b == b_mask) && (g == g_mask)) |
| 1665 | gdk_image_put_pixel( mask_image, x, y, 1 ); |
| 1666 | else |
| 1667 | gdk_image_put_pixel( mask_image, x, y, 0 ); |
| 1668 | } |
| 1669 | */ |
| 1670 | |
| 1671 | switch (bpp) |
| 1672 | { |
| 1673 | case 8: |
| 1674 | { |
| 1675 | int pixel = -1; |
| 1676 | /* |
| 1677 | if (wxTheApp->m_colorCube) |
| 1678 | { |
| 1679 | pixel = wxTheApp->m_colorCube |
| 1680 | [ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ]; |
| 1681 | } |
| 1682 | else |
| 1683 | { |
| 1684 | */ |
| 1685 | int max = 3 * (65536); |
| 1686 | for (int i = 0; i < 256; i++) |
| 1687 | { |
| 1688 | int rdiff = (r << 8) - colors[i].red; |
| 1689 | int gdiff = (g << 8) - colors[i].green; |
| 1690 | int bdiff = (b << 8) - colors[i].blue; |
| 1691 | int sum = abs (rdiff) + abs (gdiff) + abs (bdiff); |
| 1692 | if (sum < max) { pixel = i; max = sum; } |
| 1693 | } |
| 1694 | /* |
| 1695 | } |
| 1696 | */ |
| 1697 | XPutPixel( data_image, x, y, pixel ); |
| 1698 | break; |
| 1699 | } |
| 1700 | case 15: |
| 1701 | { |
| 1702 | int pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); |
| 1703 | XPutPixel( data_image, x, y, pixel ); |
| 1704 | break; |
| 1705 | } |
| 1706 | case 16: |
| 1707 | { |
| 1708 | int pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); |
| 1709 | XPutPixel( data_image, x, y, pixel ); |
| 1710 | break; |
| 1711 | } |
| 1712 | case 32: |
| 1713 | case 24: |
| 1714 | { |
| 1715 | int pixel = 0; |
| 1716 | switch (b_o) |
| 1717 | { |
| 1718 | case RGB: pixel = (r << 16) | (g << 8) | b; break; |
| 1719 | case RBG: pixel = (r << 16) | (b << 8) | g; break; |
| 1720 | case BRG: pixel = (b << 16) | (r << 8) | g; break; |
| 1721 | case BGR: pixel = (b << 16) | (g << 8) | r; break; |
| 1722 | case GRB: pixel = (g << 16) | (r << 8) | b; break; |
| 1723 | case GBR: pixel = (g << 16) | (b << 8) | r; break; |
| 1724 | } |
| 1725 | XPutPixel( data_image, x, y, pixel ); |
| 1726 | } |
| 1727 | default: break; |
| 1728 | } |
| 1729 | } // for |
| 1730 | } // for |
| 1731 | |
| 1732 | // Blit picture |
| 1733 | |
| 1734 | XGCValues gcvalues; |
| 1735 | gcvalues.foreground = BlackPixel( dpy, DefaultScreen( dpy ) ); |
| 1736 | GC gc = XCreateGC( dpy, RootWindow ( dpy, DefaultScreen(dpy) ), GCForeground, &gcvalues ); |
| 1737 | XPutImage( dpy, (Drawable)bitmap.GetPixmap(), gc, data_image, 0, 0, 0, 0, width, height ); |
| 1738 | |
| 1739 | XDestroyImage( data_image ); |
| 1740 | XFreeGC( dpy, gc ); |
| 1741 | |
| 1742 | /* |
| 1743 | // Blit mask |
| 1744 | |
| 1745 | if (HasMask()) |
| 1746 | { |
| 1747 | GdkGC *mask_gc = gdk_gc_new( bitmap.GetMask()->GetBitmap() ); |
| 1748 | |
| 1749 | gdk_draw_image( bitmap.GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height ); |
| 1750 | |
| 1751 | gdk_image_destroy( mask_image ); |
| 1752 | gdk_gc_unref( mask_gc ); |
| 1753 | } |
| 1754 | */ |
| 1755 | |
| 1756 | return bitmap; |
| 1757 | } |
| 1758 | |
| 1759 | wxImage::wxImage( const wxBitmap &bitmap ) |
| 1760 | { |
| 1761 | wxCHECK_RET( bitmap.Ok(), _T("invalid bitmap") ); |
| 1762 | |
| 1763 | Display *dpy = (Display*) wxGetDisplay(); |
| 1764 | Visual* vis = DefaultVisual( dpy, DefaultScreen( dpy ) ); |
| 1765 | int bpp = DefaultDepth( dpy, DefaultScreen( dpy ) ); |
| 1766 | |
| 1767 | XImage *ximage = XGetImage( dpy, |
| 1768 | (Drawable)bitmap.GetPixmap(), |
| 1769 | 0, 0, |
| 1770 | bitmap.GetWidth(), bitmap.GetHeight(), |
| 1771 | AllPlanes, ZPixmap ); |
| 1772 | |
| 1773 | wxCHECK_RET( ximage, _T("couldn't create image") ); |
| 1774 | |
| 1775 | Create( bitmap.GetWidth(), bitmap.GetHeight() ); |
| 1776 | char unsigned *data = GetData(); |
| 1777 | |
| 1778 | if (!data) |
| 1779 | { |
| 1780 | XDestroyImage( ximage ); |
| 1781 | wxFAIL_MSG( _T("couldn't create image") ); |
| 1782 | return; |
| 1783 | } |
| 1784 | |
| 1785 | /* |
| 1786 | GdkImage *gdk_image_mask = (GdkImage*) NULL; |
| 1787 | if (bitmap.GetMask()) |
| 1788 | { |
| 1789 | gdk_image_mask = gdk_image_get( bitmap.GetMask()->GetBitmap(), |
| 1790 | 0, 0, |
| 1791 | bitmap.GetWidth(), bitmap.GetHeight() ); |
| 1792 | |
| 1793 | SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable |
| 1794 | } |
| 1795 | */ |
| 1796 | |
| 1797 | // Retrieve depth info |
| 1798 | |
| 1799 | XVisualInfo vinfo_template; |
| 1800 | XVisualInfo *vi; |
| 1801 | |
| 1802 | vinfo_template.visual = vis; |
| 1803 | vinfo_template.visualid = XVisualIDFromVisual( vis ); |
| 1804 | vinfo_template.depth = bpp; |
| 1805 | int nitem = 0; |
| 1806 | |
| 1807 | vi = XGetVisualInfo( dpy, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem ); |
| 1808 | |
| 1809 | if (!vi) |
| 1810 | { |
| 1811 | printf("no visual.\n" ); |
| 1812 | return; |
| 1813 | } |
| 1814 | |
| 1815 | if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15; |
| 1816 | |
| 1817 | XFree( vi ); |
| 1818 | |
| 1819 | XColor colors[256]; |
| 1820 | if (bpp == 8) |
| 1821 | { |
| 1822 | Colormap cmap = (Colormap)wxTheApp->GetMainColormap( dpy ); |
| 1823 | |
| 1824 | for (int i = 0; i < 256; i++) colors[i].pixel = i; |
| 1825 | XQueryColors( dpy, cmap, colors, 256 ); |
| 1826 | } |
| 1827 | |
| 1828 | long pos = 0; |
| 1829 | for (int j = 0; j < bitmap.GetHeight(); j++) |
| 1830 | { |
| 1831 | for (int i = 0; i < bitmap.GetWidth(); i++) |
| 1832 | { |
| 1833 | int pixel = XGetPixel( ximage, i, j ); |
| 1834 | if (bpp <= 8) |
| 1835 | { |
| 1836 | data[pos] = colors[pixel].red >> 8; |
| 1837 | data[pos+1] = colors[pixel].green >> 8; |
| 1838 | data[pos+2] = colors[pixel].blue >> 8; |
| 1839 | } else if (bpp == 15) |
| 1840 | { |
| 1841 | data[pos] = (pixel >> 7) & 0xf8; |
| 1842 | data[pos+1] = (pixel >> 2) & 0xf8; |
| 1843 | data[pos+2] = (pixel << 3) & 0xf8; |
| 1844 | } else if (bpp == 16) |
| 1845 | { |
| 1846 | data[pos] = (pixel >> 8) & 0xf8; |
| 1847 | data[pos+1] = (pixel >> 3) & 0xfc; |
| 1848 | data[pos+2] = (pixel << 3) & 0xf8; |
| 1849 | } else |
| 1850 | { |
| 1851 | data[pos] = (pixel >> 16) & 0xff; |
| 1852 | data[pos+1] = (pixel >> 8) & 0xff; |
| 1853 | data[pos+2] = pixel & 0xff; |
| 1854 | } |
| 1855 | |
| 1856 | /* |
| 1857 | if (gdk_image_mask) |
| 1858 | { |
| 1859 | int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j ); |
| 1860 | if (mask_pixel == 0) |
| 1861 | { |
| 1862 | data[pos] = 16; |
| 1863 | data[pos+1] = 16; |
| 1864 | data[pos+2] = 16; |
| 1865 | } |
| 1866 | } |
| 1867 | */ |
| 1868 | |
| 1869 | pos += 3; |
| 1870 | } |
| 1871 | } |
| 1872 | |
| 1873 | XDestroyImage( ximage ); |
| 1874 | /* |
| 1875 | if (gdk_image_mask) gdk_image_destroy( gdk_image_mask ); |
| 1876 | */ |
| 1877 | } |
| 1878 | #endif |
| 1879 | |
| 1880 | // A module to allow wxImage initialization/cleanup |
| 1881 | // without calling these functions from app.cpp or from |
| 1882 | // the user's application. |
| 1883 | |
| 1884 | class wxImageModule: public wxModule |
| 1885 | { |
| 1886 | DECLARE_DYNAMIC_CLASS(wxImageModule) |
| 1887 | public: |
| 1888 | wxImageModule() {} |
| 1889 | bool OnInit() { wxImage::InitStandardHandlers(); return TRUE; }; |
| 1890 | void OnExit() { wxImage::CleanUpHandlers(); }; |
| 1891 | }; |
| 1892 | |
| 1893 | IMPLEMENT_DYNAMIC_CLASS(wxImageModule, wxModule) |