| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: bitmap.cpp |
| 3 | // Author: Vaclav Slavik |
| 4 | // RCS-ID: $Id$ |
| 5 | // Copyright: (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com) |
| 6 | // Licence: wxWindows licence |
| 7 | ///////////////////////////////////////////////////////////////////////////// |
| 8 | |
| 9 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| 10 | #pragma implementation "bitmap.h" |
| 11 | #endif |
| 12 | |
| 13 | // For compilers that support precompilation, includes "wx.h". |
| 14 | #include "wx/wxprec.h" |
| 15 | |
| 16 | #ifdef __BORLANDC__ |
| 17 | #pragma hdrstop |
| 18 | #endif |
| 19 | |
| 20 | #include "wx/bitmap.h" |
| 21 | #include "wx/icon.h" |
| 22 | #include "wx/filefn.h" |
| 23 | #include "wx/image.h" |
| 24 | #include "wx/dcmemory.h" |
| 25 | #include "wx/utils.h" |
| 26 | #include "wx/log.h" |
| 27 | #include "wx/intl.h" |
| 28 | #include "wx/image.h" |
| 29 | #include "wx/xpmdecod.h" |
| 30 | |
| 31 | #include "wx/mgl/private.h" |
| 32 | |
| 33 | #include <mgraph.hpp> |
| 34 | |
| 35 | //----------------------------------------------------------------------------- |
| 36 | // MGL pixel formats: |
| 37 | //----------------------------------------------------------------------------- |
| 38 | |
| 39 | static pixel_format_t gs_pixel_format_15 = |
| 40 | {0x1F,0x0A,3, 0x1F,0x05,3, 0x1F,0x00,3, 0x01,0x0F,7}; // 555 15bpp |
| 41 | |
| 42 | static pixel_format_t gs_pixel_format_16 = |
| 43 | {0x1F,0x0B,3, 0x3F,0x05,2, 0x1F,0x00,3, 0x00,0x00,0}; // 565 16bpp |
| 44 | |
| 45 | static pixel_format_t gs_pixel_format_24 = |
| 46 | {0xFF,0x10,0, 0xFF,0x08,0, 0xFF,0x00,0, 0x00,0x00,0}; // RGB 24bpp |
| 47 | |
| 48 | static pixel_format_t gs_pixel_format_32 = |
| 49 | {0xFF,0x18,0, 0xFF,0x10,0, 0xFF,0x08,0, 0xFF,0x00,0}; // RGBA 32bpp |
| 50 | |
| 51 | static pixel_format_t gs_pixel_format_wxImage = |
| 52 | {0xFF,0x00,0, 0xFF,0x08,0, 0xFF,0x10,0, 0x00,0x00,0}; // RGB 24bpp for wxImage |
| 53 | |
| 54 | //----------------------------------------------------------------------------- |
| 55 | // helpers |
| 56 | //----------------------------------------------------------------------------- |
| 57 | |
| 58 | // Convert wxColour into it's quantized value in lower-precision |
| 59 | // pixel format (needed for masking by colour). |
| 60 | static wxColour wxQuantizeColour(const wxColour& clr, const wxBitmap& bmp) |
| 61 | { |
| 62 | pixel_format_t *pf = bmp.GetMGLbitmap_t()->pf; |
| 63 | |
| 64 | if ( pf->redAdjust == 0 && pf->greenAdjust == 0 && pf->blueAdjust == 0 ) |
| 65 | return clr; |
| 66 | else |
| 67 | return wxColour((clr.Red() >> pf->redAdjust) << pf->redAdjust, |
| 68 | (clr.Green() >> pf->greenAdjust) << pf->greenAdjust, |
| 69 | (clr.Blue() >> pf->blueAdjust) << pf->blueAdjust); |
| 70 | } |
| 71 | |
| 72 | |
| 73 | |
| 74 | //----------------------------------------------------------------------------- |
| 75 | // wxMask |
| 76 | //----------------------------------------------------------------------------- |
| 77 | |
| 78 | IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject) |
| 79 | |
| 80 | wxMask::wxMask() |
| 81 | { |
| 82 | m_bitmap = NULL; |
| 83 | } |
| 84 | |
| 85 | wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour) |
| 86 | { |
| 87 | m_bitmap = NULL; |
| 88 | Create(bitmap, colour); |
| 89 | } |
| 90 | |
| 91 | wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex) |
| 92 | { |
| 93 | m_bitmap = NULL; |
| 94 | Create(bitmap, paletteIndex); |
| 95 | } |
| 96 | |
| 97 | wxMask::wxMask(const wxBitmap& bitmap) |
| 98 | { |
| 99 | m_bitmap = NULL; |
| 100 | Create(bitmap); |
| 101 | } |
| 102 | |
| 103 | wxMask::~wxMask() |
| 104 | { |
| 105 | delete m_bitmap; |
| 106 | } |
| 107 | |
| 108 | bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) |
| 109 | { |
| 110 | delete m_bitmap; |
| 111 | m_bitmap = NULL; |
| 112 | |
| 113 | wxColour clr(wxQuantizeColour(colour, bitmap)); |
| 114 | |
| 115 | wxImage imgSrc(bitmap.ConvertToImage()); |
| 116 | imgSrc.SetMask(FALSE); |
| 117 | wxImage image(imgSrc.ConvertToMono(clr.Red(), clr.Green(), clr.Blue())); |
| 118 | if ( !image.Ok() ) return FALSE; |
| 119 | |
| 120 | m_bitmap = new wxBitmap(image, 1); |
| 121 | |
| 122 | return m_bitmap->Ok(); |
| 123 | } |
| 124 | |
| 125 | bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex) |
| 126 | { |
| 127 | unsigned char r,g,b; |
| 128 | wxPalette *pal = bitmap.GetPalette(); |
| 129 | |
| 130 | wxCHECK_MSG( pal, FALSE, wxT("Cannot create mask from bitmap without palette") ); |
| 131 | |
| 132 | pal->GetRGB(paletteIndex, &r, &g, &b); |
| 133 | |
| 134 | return Create(bitmap, wxColour(r, g, b)); |
| 135 | } |
| 136 | |
| 137 | bool wxMask::Create(const wxBitmap& bitmap) |
| 138 | { |
| 139 | delete m_bitmap; |
| 140 | m_bitmap = NULL; |
| 141 | |
| 142 | wxCHECK_MSG( bitmap.Ok(), FALSE, wxT("Invalid bitmap") ); |
| 143 | wxCHECK_MSG( bitmap.GetDepth() == 1, FALSE, wxT("Cannot create mask from colour bitmap") ); |
| 144 | |
| 145 | m_bitmap = new wxBitmap(bitmap); |
| 146 | return TRUE; |
| 147 | } |
| 148 | |
| 149 | |
| 150 | //----------------------------------------------------------------------------- |
| 151 | // wxBitmap |
| 152 | //----------------------------------------------------------------------------- |
| 153 | |
| 154 | class wxBitmapRefData: public wxObjectRefData |
| 155 | { |
| 156 | public: |
| 157 | wxBitmapRefData(); |
| 158 | ~wxBitmapRefData(); |
| 159 | |
| 160 | int m_width; |
| 161 | int m_height; |
| 162 | int m_bpp; |
| 163 | wxPalette *m_palette; |
| 164 | wxMask *m_mask; |
| 165 | bitmap_t *m_bitmap; |
| 166 | }; |
| 167 | |
| 168 | wxBitmapRefData::wxBitmapRefData() |
| 169 | { |
| 170 | m_mask = NULL; |
| 171 | m_width = 0; |
| 172 | m_height = 0; |
| 173 | m_bpp = 0; |
| 174 | m_palette = NULL; |
| 175 | m_bitmap = NULL; |
| 176 | } |
| 177 | |
| 178 | wxBitmapRefData::~wxBitmapRefData() |
| 179 | { |
| 180 | if ( m_bitmap ) |
| 181 | MGL_unloadBitmap(m_bitmap); |
| 182 | delete m_mask; |
| 183 | delete m_palette; |
| 184 | } |
| 185 | |
| 186 | //----------------------------------------------------------------------------- |
| 187 | |
| 188 | #define M_BMPDATA ((wxBitmapRefData *)m_refData) |
| 189 | |
| 190 | |
| 191 | IMPLEMENT_ABSTRACT_CLASS(wxBitmapHandler,wxObject) |
| 192 | IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxBitmapBase) |
| 193 | |
| 194 | wxBitmap::wxBitmap(int width, int height, int depth) |
| 195 | { |
| 196 | Create(width, height, depth); |
| 197 | } |
| 198 | |
| 199 | |
| 200 | static bitmap_t *MyMGL_createBitmap(int width, int height, |
| 201 | int bpp, pixel_format_t *pf) |
| 202 | { |
| 203 | MGLMemoryDC mdc(width, height, bpp, pf); |
| 204 | return MGL_getBitmapFromDC(mdc.getDC(), 0, 0, width, height, TRUE); |
| 205 | } |
| 206 | |
| 207 | bool wxBitmap::Create(int width, int height, int depth) |
| 208 | { |
| 209 | UnRef(); |
| 210 | |
| 211 | wxCHECK_MSG( (width > 0) && (height > 0), FALSE, wxT("invalid bitmap size") ) |
| 212 | |
| 213 | pixel_format_t pf_dummy, *pf; |
| 214 | int mglDepth = depth; |
| 215 | |
| 216 | switch ( depth ) |
| 217 | { |
| 218 | case -1: |
| 219 | wxASSERT_MSG( g_displayDC, wxT("MGL display DC not created yet.") ); |
| 220 | |
| 221 | g_displayDC->getPixelFormat(pf_dummy); |
| 222 | mglDepth = g_displayDC->getBitsPerPixel(); |
| 223 | pf = &pf_dummy; |
| 224 | break; |
| 225 | case 1: |
| 226 | case 8: |
| 227 | pf = NULL; |
| 228 | break; |
| 229 | case 15: |
| 230 | pf = &gs_pixel_format_15; |
| 231 | break; |
| 232 | case 16: |
| 233 | pf = &gs_pixel_format_16; |
| 234 | break; |
| 235 | case 24: |
| 236 | pf = &gs_pixel_format_24; |
| 237 | break; |
| 238 | case 32: |
| 239 | pf = &gs_pixel_format_32; |
| 240 | break; |
| 241 | default: |
| 242 | wxASSERT_MSG( 0, wxT("invalid bitmap depth") ); |
| 243 | return FALSE; |
| 244 | break; |
| 245 | } |
| 246 | |
| 247 | m_refData = new wxBitmapRefData(); |
| 248 | M_BMPDATA->m_mask = (wxMask *) NULL; |
| 249 | M_BMPDATA->m_palette = (wxPalette *) NULL; |
| 250 | M_BMPDATA->m_width = width; |
| 251 | M_BMPDATA->m_height = height; |
| 252 | M_BMPDATA->m_bpp = mglDepth; |
| 253 | |
| 254 | if ( mglDepth != 1 ) |
| 255 | { |
| 256 | M_BMPDATA->m_bitmap = MyMGL_createBitmap(width, height, mglDepth, pf); |
| 257 | } |
| 258 | else |
| 259 | { |
| 260 | // MGL does not support mono DCs, so we have to emulate them with |
| 261 | // 8bpp ones. We do that by using a special palette with color 0 |
| 262 | // set to black and all other colors set to white. |
| 263 | |
| 264 | M_BMPDATA->m_bitmap = MyMGL_createBitmap(width, height, 8, pf); |
| 265 | SetMonoPalette(wxColour(255, 255, 255), wxColour(0, 0, 0)); |
| 266 | } |
| 267 | |
| 268 | return Ok(); |
| 269 | } |
| 270 | |
| 271 | bool wxBitmap::CreateFromXpm(const char **bits) |
| 272 | { |
| 273 | wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") ) |
| 274 | |
| 275 | wxXPMDecoder decoder; |
| 276 | wxImage img = decoder.ReadData(bits); |
| 277 | wxCHECK_MSG( img.Ok(), FALSE, wxT("invalid bitmap data") ) |
| 278 | |
| 279 | *this = wxBitmap(img); |
| 280 | |
| 281 | return TRUE; |
| 282 | } |
| 283 | |
| 284 | wxBitmap::wxBitmap(const wxImage& image, int depth) |
| 285 | { |
| 286 | long width, height; |
| 287 | |
| 288 | wxCHECK_RET( image.Ok(), wxT("invalid image") ) |
| 289 | |
| 290 | width = image.GetWidth(); |
| 291 | height = image.GetHeight(); |
| 292 | |
| 293 | if ( !Create(width, height, depth) ) return; |
| 294 | |
| 295 | MGLMemoryDC idc(width, height, 24, &gs_pixel_format_wxImage, |
| 296 | width * 3, (void*)image.GetData(), NULL); |
| 297 | wxASSERT_MSG( idc.isValid(), wxT("cannot create custom MGLDC") ); |
| 298 | |
| 299 | MGLDevCtx *bdc = CreateTmpDC(); |
| 300 | |
| 301 | if ( GetDepth() <= 8 && image.HasPalette() ) |
| 302 | SetPalette(image.GetPalette()); |
| 303 | |
| 304 | bdc->bitBlt(idc, 0, 0, width, height, 0, 0, MGL_REPLACE_MODE); |
| 305 | delete bdc; |
| 306 | |
| 307 | if ( image.HasMask() ) |
| 308 | { |
| 309 | wxImage mask_image = image.ConvertToMono(image.GetMaskRed(), |
| 310 | image.GetMaskGreen(), |
| 311 | image.GetMaskBlue()); |
| 312 | mask_image.SetMask(FALSE); |
| 313 | wxBitmap mask_bmp(mask_image, 1); |
| 314 | SetMask(new wxMask(mask_bmp)); |
| 315 | } |
| 316 | } |
| 317 | |
| 318 | wxImage wxBitmap::ConvertToImage() const |
| 319 | { |
| 320 | wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") ); |
| 321 | |
| 322 | int width, height; |
| 323 | width = GetWidth(); |
| 324 | height = GetHeight(); |
| 325 | |
| 326 | wxImage image(width, height); |
| 327 | wxASSERT_MSG( image.Ok(), wxT("cannot create image") ); |
| 328 | |
| 329 | MGLMemoryDC idc(width, height, 24, &gs_pixel_format_wxImage, |
| 330 | width * 3, (void*)image.GetData(), NULL); |
| 331 | wxASSERT_MSG( idc.isValid(), wxT("cannot create custom MGLDC") ); |
| 332 | |
| 333 | if ( M_BMPDATA->m_palette ) |
| 334 | image.SetPalette(*(M_BMPDATA->m_palette)); |
| 335 | |
| 336 | if ( GetMask() ) |
| 337 | { |
| 338 | // in consistency with other ports, we convert parts covered |
| 339 | // by the mask to <16,16,16> colour and set that colour to image's |
| 340 | // mask. We do that by OR-blitting the mask over image with |
| 341 | // bg colour set to black and fg colour to <16,16,16> |
| 342 | |
| 343 | image.SetMaskColour(16, 16, 16); |
| 344 | image.SetMask(TRUE); |
| 345 | |
| 346 | wxDC tmpDC; |
| 347 | tmpDC.SetMGLDC(&idc, FALSE); |
| 348 | tmpDC.SetBackground(wxBrush(wxColour(16,16,16), wxSOLID)); |
| 349 | tmpDC.Clear(); |
| 350 | tmpDC.DrawBitmap(*this, 0, 0, TRUE); |
| 351 | } |
| 352 | else |
| 353 | { |
| 354 | image.SetMask(FALSE); |
| 355 | idc.putBitmap(0, 0, M_BMPDATA->m_bitmap, MGL_REPLACE_MODE); |
| 356 | } |
| 357 | |
| 358 | return image; |
| 359 | } |
| 360 | |
| 361 | wxBitmap::wxBitmap(const wxBitmap& bmp) |
| 362 | { |
| 363 | Ref(bmp); |
| 364 | } |
| 365 | |
| 366 | wxBitmap::wxBitmap(const wxString &filename, wxBitmapType type) |
| 367 | { |
| 368 | LoadFile(filename, type); |
| 369 | } |
| 370 | |
| 371 | wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) |
| 372 | { |
| 373 | wxCHECK_RET( depth == 1, wxT("can only create mono bitmap from XBM data") ); |
| 374 | |
| 375 | if ( !Create(width, height, 1) ) return; |
| 376 | MGLDevCtx *bdc = CreateTmpDC(); |
| 377 | wxCurrentDCSwitcher curDC(bdc); |
| 378 | bdc->setColor(1); |
| 379 | bdc->setBackColor(0); |
| 380 | bdc->clearDevice(); |
| 381 | bdc->putMonoImage(0, 0, width, (width + 7) / 8, height, (void*)bits); |
| 382 | delete bdc; |
| 383 | } |
| 384 | |
| 385 | wxBitmap& wxBitmap::operator = (const wxBitmap& bmp) |
| 386 | { |
| 387 | if ( *this == bmp ) return (*this); |
| 388 | Ref(bmp); |
| 389 | return *this; |
| 390 | } |
| 391 | |
| 392 | bool wxBitmap::operator == (const wxBitmap& bmp) const |
| 393 | { |
| 394 | return (m_refData == bmp.m_refData); |
| 395 | } |
| 396 | |
| 397 | bool wxBitmap::operator != (const wxBitmap& bmp) const |
| 398 | { |
| 399 | return (m_refData != bmp.m_refData); |
| 400 | } |
| 401 | |
| 402 | bool wxBitmap::Ok() const |
| 403 | { |
| 404 | return (m_refData != NULL && M_BMPDATA->m_bitmap != NULL); |
| 405 | } |
| 406 | |
| 407 | int wxBitmap::GetHeight() const |
| 408 | { |
| 409 | wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); |
| 410 | |
| 411 | return M_BMPDATA->m_height; |
| 412 | } |
| 413 | |
| 414 | int wxBitmap::GetWidth() const |
| 415 | { |
| 416 | wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); |
| 417 | |
| 418 | return M_BMPDATA->m_width; |
| 419 | } |
| 420 | |
| 421 | int wxBitmap::GetDepth() const |
| 422 | { |
| 423 | wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") ); |
| 424 | |
| 425 | return M_BMPDATA->m_bpp; |
| 426 | } |
| 427 | |
| 428 | wxMask *wxBitmap::GetMask() const |
| 429 | { |
| 430 | wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") ); |
| 431 | |
| 432 | return M_BMPDATA->m_mask; |
| 433 | } |
| 434 | |
| 435 | void wxBitmap::SetMask(wxMask *mask) |
| 436 | { |
| 437 | wxCHECK_RET( Ok(), wxT("invalid bitmap") ); |
| 438 | |
| 439 | delete M_BMPDATA->m_mask; |
| 440 | M_BMPDATA->m_mask = mask; |
| 441 | } |
| 442 | |
| 443 | bool wxBitmap::CopyFromIcon(const wxIcon& icon) |
| 444 | { |
| 445 | wxBitmap *bmp = (wxBitmap*)(&icon); |
| 446 | *this = *bmp; |
| 447 | return TRUE; |
| 448 | } |
| 449 | |
| 450 | wxBitmap wxBitmap::GetSubBitmap(const wxRect& rect) const |
| 451 | { |
| 452 | wxCHECK_MSG( Ok() && |
| 453 | (rect.x >= 0) && (rect.y >= 0) && |
| 454 | (rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height), |
| 455 | wxNullBitmap, wxT("invalid bitmap or bitmap region") ); |
| 456 | |
| 457 | wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp ); |
| 458 | wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") ); |
| 459 | |
| 460 | if ( GetPalette() ) |
| 461 | ret.SetPalette(*GetPalette()); |
| 462 | |
| 463 | MGLDevCtx *tdc = ret.CreateTmpDC(); |
| 464 | tdc->putBitmapSection(rect.x, rect.y, |
| 465 | rect.x + rect.width, rect.y + rect.height, |
| 466 | 0, 0, M_BMPDATA->m_bitmap, MGL_REPLACE_MODE); |
| 467 | delete tdc; |
| 468 | |
| 469 | if ( GetMask() ) |
| 470 | { |
| 471 | wxBitmap submask = GetMask()->GetBitmap()->GetSubBitmap(rect); |
| 472 | ret.SetMask(new wxMask(submask)); |
| 473 | } |
| 474 | |
| 475 | return ret; |
| 476 | } |
| 477 | |
| 478 | void wxBitmap::SetMonoPalette(const wxColour& fg, const wxColour& bg) |
| 479 | { |
| 480 | wxCHECK_RET( Ok(), wxT("invalid bitmap") ); |
| 481 | |
| 482 | palette_t *mono = M_BMPDATA->m_bitmap->pal; |
| 483 | |
| 484 | wxCHECK_RET( M_BMPDATA->m_bpp == 1, wxT("bitmap is not 1bpp") ); |
| 485 | wxCHECK_RET( mono != NULL, wxT("bitmap w/o palette") ); |
| 486 | |
| 487 | mono[0].red = bg.Red(); |
| 488 | mono[0].green = bg.Green(); |
| 489 | mono[0].blue = bg.Blue(); |
| 490 | mono[0].alpha = 0; |
| 491 | for (size_t i = 1; i < 256; i++) |
| 492 | { |
| 493 | mono[i].red = fg.Red(); |
| 494 | mono[i].green = fg.Green(); |
| 495 | mono[i].blue = fg.Blue(); |
| 496 | mono[i].alpha = 0; |
| 497 | } |
| 498 | } |
| 499 | |
| 500 | MGLDevCtx *wxBitmap::CreateTmpDC() const |
| 501 | { |
| 502 | wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") ); |
| 503 | |
| 504 | MGLDevCtx *tdc = new MGLMemoryDC(GetWidth(), GetHeight(), |
| 505 | M_BMPDATA->m_bitmap->bitsPerPixel, |
| 506 | M_BMPDATA->m_bitmap->pf, |
| 507 | M_BMPDATA->m_bitmap->bytesPerLine, |
| 508 | M_BMPDATA->m_bitmap->surface, |
| 509 | NULL); |
| 510 | wxCHECK_MSG( tdc->isValid(), NULL, wxT("cannot create temporary MGLDC") ); |
| 511 | |
| 512 | if ( M_BMPDATA->m_bitmap->pal != NULL ) |
| 513 | { |
| 514 | int cnt; |
| 515 | |
| 516 | switch (M_BMPDATA->m_bitmap->bitsPerPixel) |
| 517 | { |
| 518 | case 2: cnt = 2; break; |
| 519 | case 4: cnt = 16; break; |
| 520 | case 8: cnt = 256; break; |
| 521 | default: |
| 522 | cnt = 0; |
| 523 | wxFAIL_MSG( wxT("bitmap with this depth cannot have palette") ); |
| 524 | break; |
| 525 | } |
| 526 | |
| 527 | tdc->setPalette(M_BMPDATA->m_bitmap->pal, cnt, 0); |
| 528 | tdc->realizePalette(cnt, 0, FALSE); |
| 529 | } |
| 530 | |
| 531 | return tdc; |
| 532 | } |
| 533 | |
| 534 | bool wxBitmap::LoadFile(const wxString &name, wxBitmapType type) |
| 535 | { |
| 536 | UnRef(); |
| 537 | |
| 538 | if ( type == wxBITMAP_TYPE_BMP || type == wxBITMAP_TYPE_PNG || |
| 539 | type == wxBITMAP_TYPE_PCX || type == wxBITMAP_TYPE_JPEG ) |
| 540 | { |
| 541 | // prevent accidental loading of bitmap from $MGL_ROOT: |
| 542 | if ( !wxFileExists(name) ) |
| 543 | { |
| 544 | wxLogError(_("File %s does not exist."), name.c_str()); |
| 545 | return FALSE; |
| 546 | } |
| 547 | } |
| 548 | |
| 549 | wxBitmapHandler *handler = FindHandler(type); |
| 550 | |
| 551 | if ( handler == NULL ) |
| 552 | { |
| 553 | wxImage image; |
| 554 | if ( !image.LoadFile(name, type) || !image.Ok() ) |
| 555 | { |
| 556 | wxLogError("no bitmap handler for type %d defined.", type); |
| 557 | return FALSE; |
| 558 | } |
| 559 | else |
| 560 | { |
| 561 | *this = wxBitmap(image); |
| 562 | return TRUE; |
| 563 | } |
| 564 | } |
| 565 | |
| 566 | m_refData = new wxBitmapRefData(); |
| 567 | |
| 568 | return handler->LoadFile(this, name, type, -1, -1); |
| 569 | } |
| 570 | |
| 571 | bool wxBitmap::SaveFile(const wxString& filename, wxBitmapType type, const wxPalette *palette) const |
| 572 | { |
| 573 | wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") ); |
| 574 | |
| 575 | wxBitmapHandler *handler = FindHandler(type); |
| 576 | |
| 577 | if ( handler == NULL ) |
| 578 | { |
| 579 | wxImage image = ConvertToImage(); |
| 580 | if ( palette ) |
| 581 | image.SetPalette(*palette); |
| 582 | |
| 583 | if ( image.Ok() ) |
| 584 | return image.SaveFile(filename, type); |
| 585 | else |
| 586 | { |
| 587 | wxLogError("no bitmap handler for type %d defined.", type); |
| 588 | return FALSE; |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | return handler->SaveFile(this, filename, type, palette); |
| 593 | } |
| 594 | |
| 595 | wxPalette *wxBitmap::GetPalette() const |
| 596 | { |
| 597 | wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") ); |
| 598 | |
| 599 | return M_BMPDATA->m_palette; |
| 600 | } |
| 601 | |
| 602 | void wxBitmap::SetPalette(const wxPalette& palette) |
| 603 | { |
| 604 | wxCHECK_RET( Ok(), wxT("invalid bitmap") ); |
| 605 | wxCHECK_RET( GetDepth() > 1 && GetDepth() <= 8, wxT("cannot set palette for bitmap of this depth") ); |
| 606 | |
| 607 | delete M_BMPDATA->m_palette; |
| 608 | M_BMPDATA->m_palette = NULL; |
| 609 | |
| 610 | if ( !palette.Ok() ) return; |
| 611 | |
| 612 | M_BMPDATA->m_palette = new wxPalette(palette); |
| 613 | |
| 614 | int cnt = palette.GetColoursCount(); |
| 615 | palette_t *pal = palette.GetMGLpalette_t(); |
| 616 | memcpy(M_BMPDATA->m_bitmap->pal, pal, cnt * sizeof(palette_t)); |
| 617 | } |
| 618 | |
| 619 | void wxBitmap::SetHeight(int height) |
| 620 | { |
| 621 | if (!m_refData) m_refData = new wxBitmapRefData(); |
| 622 | |
| 623 | M_BMPDATA->m_height = height; |
| 624 | } |
| 625 | |
| 626 | void wxBitmap::SetWidth(int width) |
| 627 | { |
| 628 | if (!m_refData) m_refData = new wxBitmapRefData(); |
| 629 | |
| 630 | M_BMPDATA->m_width = width; |
| 631 | } |
| 632 | |
| 633 | void wxBitmap::SetDepth(int depth) |
| 634 | { |
| 635 | if (!m_refData) m_refData = new wxBitmapRefData(); |
| 636 | |
| 637 | M_BMPDATA->m_bpp = depth; |
| 638 | } |
| 639 | |
| 640 | bitmap_t *wxBitmap::GetMGLbitmap_t() const |
| 641 | { |
| 642 | return M_BMPDATA->m_bitmap; |
| 643 | } |
| 644 | |
| 645 | |
| 646 | |
| 647 | //----------------------------------------------------------------------------- |
| 648 | // wxBitmap I/O handlers |
| 649 | //----------------------------------------------------------------------------- |
| 650 | |
| 651 | class wxMGLBitmapHandler: public wxBitmapHandler |
| 652 | { |
| 653 | public: |
| 654 | wxMGLBitmapHandler(wxBitmapType type, |
| 655 | const wxString& extension, const wxString& name); |
| 656 | |
| 657 | virtual bool Create(wxBitmap *bitmap, void *data, long flags, |
| 658 | int width, int height, int depth = 1) |
| 659 | { return FALSE; } |
| 660 | |
| 661 | virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags, |
| 662 | int desiredWidth, int desiredHeight); |
| 663 | virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name, |
| 664 | int type, const wxPalette *palette = NULL); |
| 665 | }; |
| 666 | |
| 667 | wxMGLBitmapHandler::wxMGLBitmapHandler(wxBitmapType type, |
| 668 | const wxString& extension, |
| 669 | const wxString& name) |
| 670 | : wxBitmapHandler() |
| 671 | { |
| 672 | SetType(type); |
| 673 | SetName(name); |
| 674 | SetExtension(extension); |
| 675 | } |
| 676 | |
| 677 | bool wxMGLBitmapHandler::LoadFile(wxBitmap *bitmap, const wxString& name, |
| 678 | long flags, |
| 679 | int WXUNUSED(desiredWidth), |
| 680 | int WXUNUSED(desiredHeight)) |
| 681 | { |
| 682 | int width, height, bpp; |
| 683 | pixel_format_t pf; |
| 684 | wxString fullname; |
| 685 | wxMemoryDC dc; |
| 686 | |
| 687 | switch (flags) |
| 688 | { |
| 689 | case wxBITMAP_TYPE_BMP_RESOURCE: |
| 690 | case wxBITMAP_TYPE_JPEG_RESOURCE: |
| 691 | case wxBITMAP_TYPE_PNG_RESOURCE: |
| 692 | case wxBITMAP_TYPE_PCX_RESOURCE: |
| 693 | fullname = name + wxT(".bmp"); |
| 694 | break; |
| 695 | default: |
| 696 | fullname= name; |
| 697 | break; |
| 698 | } |
| 699 | |
| 700 | switch (flags) |
| 701 | { |
| 702 | case wxBITMAP_TYPE_BMP: |
| 703 | case wxBITMAP_TYPE_BMP_RESOURCE: |
| 704 | if ( !MGL_getBitmapSize(fullname.mb_str(), &width, &height, &bpp, &pf) ) |
| 705 | return FALSE; |
| 706 | bitmap->Create(width, height, -1); |
| 707 | if ( !bitmap->Ok() ) return FALSE; |
| 708 | dc.SelectObject(*bitmap); |
| 709 | if ( !dc.GetMGLDC()->loadBitmapIntoDC(fullname.mb_str(), 0, 0, TRUE) ) |
| 710 | return FALSE; |
| 711 | break; |
| 712 | |
| 713 | case wxBITMAP_TYPE_JPEG: |
| 714 | case wxBITMAP_TYPE_JPEG_RESOURCE: |
| 715 | if ( !MGL_getJPEGSize(fullname.mb_str(), &width, &height, &bpp, &pf) ) |
| 716 | return FALSE; |
| 717 | bitmap->Create(width, height, -1); |
| 718 | if ( !bitmap->Ok() ) return FALSE; |
| 719 | dc.SelectObject(*bitmap); |
| 720 | if ( !dc.GetMGLDC()->loadJPEGIntoDC(fullname.mb_str(), 0, 0, TRUE) ) |
| 721 | return FALSE; |
| 722 | break; |
| 723 | |
| 724 | case wxBITMAP_TYPE_PNG: |
| 725 | case wxBITMAP_TYPE_PNG_RESOURCE: |
| 726 | if ( !MGL_getPNGSize(fullname.mb_str(), &width, &height, &bpp, &pf) ) |
| 727 | return FALSE; |
| 728 | bitmap->Create(width, height, -1); |
| 729 | if ( !bitmap->Ok() ) return FALSE; |
| 730 | dc.SelectObject(*bitmap); |
| 731 | if ( !dc.GetMGLDC()->loadPNGIntoDC(fullname.mb_str(), 0, 0, TRUE) ) |
| 732 | return FALSE; |
| 733 | break; |
| 734 | |
| 735 | case wxBITMAP_TYPE_PCX: |
| 736 | case wxBITMAP_TYPE_PCX_RESOURCE: |
| 737 | if ( !MGL_getPCXSize(fullname.mb_str(), &width, &height, &bpp) ) |
| 738 | return FALSE; |
| 739 | bitmap->Create(width, height, -1); |
| 740 | if ( !bitmap->Ok() ) return FALSE; |
| 741 | dc.SelectObject(*bitmap); |
| 742 | if ( !dc.GetMGLDC()->loadPCXIntoDC(fullname.mb_str(), 0, 0, TRUE) ) |
| 743 | return FALSE; |
| 744 | break; |
| 745 | |
| 746 | default: |
| 747 | wxFAIL_MSG(wxT("Unsupported image format.")); |
| 748 | break; |
| 749 | } |
| 750 | |
| 751 | return TRUE; |
| 752 | } |
| 753 | |
| 754 | bool wxMGLBitmapHandler::SaveFile(const wxBitmap *bitmap, const wxString& name, |
| 755 | int type, const wxPalette * WXUNUSED(palette)) |
| 756 | { |
| 757 | wxMemoryDC mem; |
| 758 | MGLDevCtx *tdc; |
| 759 | int w = bitmap->GetWidth(), |
| 760 | h = bitmap->GetHeight(); |
| 761 | |
| 762 | mem.SelectObject(*bitmap); |
| 763 | tdc = mem.GetMGLDC(); |
| 764 | |
| 765 | switch (type) |
| 766 | { |
| 767 | case wxBITMAP_TYPE_BMP: |
| 768 | return tdc->saveBitmapFromDC(name.mb_str(), 0, 0, w, h); |
| 769 | break; |
| 770 | case wxBITMAP_TYPE_JPEG: |
| 771 | return tdc->saveJPEGFromDC(name.mb_str(), 0, 0, w, h, 75); |
| 772 | break; |
| 773 | case wxBITMAP_TYPE_PNG: |
| 774 | return tdc->savePNGFromDC(name.mb_str(), 0, 0, w, h); |
| 775 | break; |
| 776 | case wxBITMAP_TYPE_PCX: |
| 777 | return tdc->savePCXFromDC(name.mb_str(), 0, 0, w, h); |
| 778 | break; |
| 779 | default: |
| 780 | return FALSE; |
| 781 | break; |
| 782 | } |
| 783 | } |
| 784 | |
| 785 | |
| 786 | |
| 787 | // let's handle PNGs in special way because they have alpha channel |
| 788 | // which we can access via bitmap_t most easily |
| 789 | class wxPNGBitmapHandler: public wxMGLBitmapHandler |
| 790 | { |
| 791 | public: |
| 792 | wxPNGBitmapHandler(wxBitmapType type, |
| 793 | const wxString& extension, const wxString& name) |
| 794 | : wxMGLBitmapHandler(type, extension, name) {} |
| 795 | |
| 796 | virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags, |
| 797 | int desiredWidth, int desiredHeight); |
| 798 | }; |
| 799 | |
| 800 | bool wxPNGBitmapHandler::LoadFile(wxBitmap *bitmap, const wxString& name, |
| 801 | long flags, |
| 802 | int desiredWidth, int desiredHeight) |
| 803 | { |
| 804 | int width, height, bpp; |
| 805 | pixel_format_t pf; |
| 806 | wxString fullname; |
| 807 | |
| 808 | if ( flags == wxBITMAP_TYPE_PNG_RESOURCE ) |
| 809 | fullname = name + wxT(".png"); |
| 810 | else |
| 811 | fullname = name; |
| 812 | |
| 813 | if ( !MGL_getPNGSize(fullname.mb_str(), &width, &height, &bpp, &pf) ) |
| 814 | return FALSE; |
| 815 | |
| 816 | if ( bpp != 32 ) |
| 817 | { |
| 818 | // We can load ordinary PNGs faster with 'normal' MGL handler. |
| 819 | // Only RGBA PNGs need to be processed in special way because |
| 820 | // we have to convert alpha channel to mask |
| 821 | return wxMGLBitmapHandler::LoadFile(bitmap, name, flags, |
| 822 | desiredWidth, desiredHeight); |
| 823 | } |
| 824 | |
| 825 | bitmap_t *bmp = MGL_loadPNG(fullname.mb_str(), TRUE); |
| 826 | |
| 827 | if ( bmp == NULL ) return FALSE; |
| 828 | |
| 829 | bitmap->Create(bmp->width, bmp->height, -1); |
| 830 | if ( !bitmap->Ok() ) return FALSE; |
| 831 | |
| 832 | // convert bmp to display's depth and write it to *bitmap: |
| 833 | wxMemoryDC dc; |
| 834 | dc.SelectObject(*bitmap); |
| 835 | dc.GetMGLDC()->putBitmap(0, 0, bmp, MGL_REPLACE_MODE); |
| 836 | dc.SelectObject(wxNullBitmap); |
| 837 | |
| 838 | // create mask, if bmp contains alpha channel (ARGB format): |
| 839 | if ( bmp->bitsPerPixel == 32 ) |
| 840 | { |
| 841 | int x, y; |
| 842 | wxUint32 *s = (wxUint32*)bmp->surface; |
| 843 | for (y = 0; y < bmp->height; y++) |
| 844 | { |
| 845 | s = ((wxUint32*)bmp->surface) + y * bmp->bytesPerLine/4; |
| 846 | for (x = 0; x < bmp->width; x++, s ++) |
| 847 | { |
| 848 | if ( ((((*s) >> bmp->pf->alphaPos) & bmp->pf->alphaMask) |
| 849 | << bmp->pf->alphaAdjust) < 128 ) |
| 850 | *s = 0; |
| 851 | else |
| 852 | *s = 0x00FFFFFF; // white |
| 853 | } |
| 854 | } |
| 855 | wxBitmap mask(bmp->width, bmp->height, 1); |
| 856 | dc.SelectObject(mask); |
| 857 | dc.GetMGLDC()->putBitmap(0, 0, bmp, MGL_REPLACE_MODE); |
| 858 | dc.SelectObject(wxNullBitmap); |
| 859 | bitmap->SetMask(new wxMask(mask)); |
| 860 | } |
| 861 | |
| 862 | MGL_unloadBitmap(bmp); |
| 863 | |
| 864 | return TRUE; |
| 865 | } |
| 866 | |
| 867 | |
| 868 | |
| 869 | |
| 870 | class wxICOBitmapHandler: public wxBitmapHandler |
| 871 | { |
| 872 | public: |
| 873 | wxICOBitmapHandler(wxBitmapType type, |
| 874 | const wxString& extension, const wxString& name); |
| 875 | |
| 876 | virtual bool Create(wxBitmap *bitmap, void *data, long flags, |
| 877 | int width, int height, int depth = 1) |
| 878 | { return FALSE; } |
| 879 | |
| 880 | virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags, |
| 881 | int desiredWidth, int desiredHeight); |
| 882 | virtual bool SaveFile(const wxBitmap *bitmap, const wxString& name, |
| 883 | int type, const wxPalette *palette = NULL); |
| 884 | }; |
| 885 | |
| 886 | wxICOBitmapHandler::wxICOBitmapHandler(wxBitmapType type, |
| 887 | const wxString& extension, |
| 888 | const wxString& name) |
| 889 | : wxBitmapHandler() |
| 890 | { |
| 891 | SetType(type); |
| 892 | SetName(name); |
| 893 | SetExtension(extension); |
| 894 | } |
| 895 | |
| 896 | bool wxICOBitmapHandler::LoadFile(wxBitmap *bitmap, const wxString& name, |
| 897 | long flags, |
| 898 | int WXUNUSED(desiredWidth), |
| 899 | int WXUNUSED(desiredHeight)) |
| 900 | { |
| 901 | icon_t *icon = NULL; |
| 902 | MGLDevCtx *dc; |
| 903 | |
| 904 | if ( flags == wxBITMAP_TYPE_ICO_RESOURCE ) |
| 905 | icon = MGL_loadIcon(wxString(name + wxT(".ico")).mb_str(), TRUE); |
| 906 | else |
| 907 | icon = MGL_loadIcon(name.mb_str(), TRUE); |
| 908 | |
| 909 | if ( icon == NULL ) return FALSE; |
| 910 | |
| 911 | bitmap->Create(icon->xorMask.width, icon->xorMask.height); |
| 912 | |
| 913 | wxMemoryDC mem; |
| 914 | mem.SelectObject(*bitmap); |
| 915 | dc = mem.GetMGLDC(); |
| 916 | dc->putBitmap(0, 0, &(icon->xorMask), MGL_REPLACE_MODE); |
| 917 | mem.SelectObject(wxNullBitmap); |
| 918 | |
| 919 | wxBitmap mask(icon->xorMask.width, icon->xorMask.height, 1); |
| 920 | mem.SelectObject(mask); |
| 921 | dc = mem.GetMGLDC(); |
| 922 | |
| 923 | wxCurrentDCSwitcher curDC(dc); |
| 924 | dc->setColor(0); |
| 925 | dc->setBackColor(1); |
| 926 | dc->clearDevice(); |
| 927 | dc->putMonoImage(0, 0, icon->xorMask.width, icon->byteWidth, |
| 928 | icon->xorMask.height, (void*)icon->andMask); |
| 929 | |
| 930 | bitmap->SetMask(new wxMask(mask)); |
| 931 | |
| 932 | MGL_unloadIcon(icon); |
| 933 | |
| 934 | return TRUE; |
| 935 | } |
| 936 | |
| 937 | bool wxICOBitmapHandler::SaveFile(const wxBitmap *bitmap, const wxString& name, |
| 938 | int type, const wxPalette * WXUNUSED(palette)) |
| 939 | { |
| 940 | return FALSE; |
| 941 | } |
| 942 | |
| 943 | |
| 944 | |
| 945 | |
| 946 | /*static*/ void wxBitmap::InitStandardHandlers() |
| 947 | { |
| 948 | AddHandler(new wxMGLBitmapHandler(wxBITMAP_TYPE_BMP, wxT("bmp"), wxT("Windows bitmap"))); |
| 949 | AddHandler(new wxMGLBitmapHandler(wxBITMAP_TYPE_BMP_RESOURCE, wxEmptyString, wxT("Windows bitmap resource"))); |
| 950 | AddHandler(new wxMGLBitmapHandler(wxBITMAP_TYPE_JPEG, wxT("jpg"), wxT("JPEG image"))); |
| 951 | AddHandler(new wxMGLBitmapHandler(wxBITMAP_TYPE_JPEG_RESOURCE, wxEmptyString, wxT("JPEG resource"))); |
| 952 | AddHandler(new wxMGLBitmapHandler(wxBITMAP_TYPE_PCX, wxT("pcx"), wxT("PCX image"))); |
| 953 | AddHandler(new wxMGLBitmapHandler(wxBITMAP_TYPE_PCX_RESOURCE, wxEmptyString, wxT("PCX resource"))); |
| 954 | |
| 955 | AddHandler(new wxPNGBitmapHandler(wxBITMAP_TYPE_PNG, wxT("png"), wxT("PNG image"))); |
| 956 | AddHandler(new wxPNGBitmapHandler(wxBITMAP_TYPE_PNG_RESOURCE, wxEmptyString, wxT("PNG resource"))); |
| 957 | |
| 958 | AddHandler(new wxICOBitmapHandler(wxBITMAP_TYPE_ICO, wxT("ico"), wxT("Icon resource"))); |
| 959 | AddHandler(new wxICOBitmapHandler(wxBITMAP_TYPE_ICO_RESOURCE, wxEmptyString, wxT("Icon resource"))); |
| 960 | } |