src/x11/bitmap.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.cpp
   3 // Purpose:     wxBitmap
   4 // Author:      Julian Smart, Robert Roebling
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart, Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "bitmap.h"
  14 #endif
  15
  16 #include "wx/bitmap.h"
  17 #include "wx/icon.h"
  18 #include "wx/log.h"
  19 #include "wx/image.h"
  20 #include "wx/app.h"
  21 #if wxUSE_NANOX
  22 #include "wx/dcmemory.h"
  23 #endif
  24
  25 #include "wx/x11/private.h"
  26
  27 /* No point in using libXPM for NanoX */
  28 #if wxUSE_NANOX
  29 #undef wxHAVE_LIB_XPM
  30 #define wxHAVE_LIB_XPM 0
  31
  32 // Copy from the drawable to the wxImage
  33 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image);
  34 #endif
  35
  36 #if wxUSE_XPM
  37 #if wxHAVE_LIB_XPM
  38 #include <X11/xpm.h>
  39 #else
  40 #include "wx/xpmdecod.h"
  41 #include "wx/wfstream.h"
  42 #endif
  43 #endif
  44 #include <math.h>
  45
  46 //-----------------------------------------------------------------------------
  47 // wxMask
  48 //-----------------------------------------------------------------------------
  49
  50 IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
  51
  52 wxMask::wxMask()
  53 {
  54     m_bitmap = NULL;
  55     m_display = NULL;
  56 }
  57
  58 wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
  59 {
  60     m_bitmap = NULL;
  61     Create( bitmap, colour );
  62 }
  63
  64 wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
  65 {
  66     m_bitmap = NULL;
  67     Create( bitmap, paletteIndex );
  68 }
  69
  70 wxMask::wxMask( const wxBitmap& bitmap )
  71 {
  72     m_bitmap = NULL;
  73     Create( bitmap );
  74 }
  75
  76 wxMask::~wxMask()
  77 {
  78     if (m_bitmap)
  79         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
  80 }
  81
  82 bool wxMask::Create( const wxBitmap& bitmap,
  83                      const wxColour& colour )
  84 {
  85 #if !wxUSE_NANOX
  86     if (m_bitmap)
  87     {
  88         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
  89         m_bitmap = NULL;
  90     }
  91
  92     m_display = bitmap.GetDisplay();
  93
  94     wxImage image( bitmap );
  95     if (!image.Ok()) return FALSE;
  96
  97     m_display = bitmap.GetDisplay();
  98
  99     Display *xdisplay = (Display*) m_display;
 100
 101     int xscreen = DefaultScreen( xdisplay );
 102     Window xroot = RootWindow( xdisplay, xscreen );
 103     Visual* xvisual = DefaultVisual( xdisplay, xscreen );
 104     int bpp = DefaultDepth( xdisplay, xscreen );
 105
 106     m_bitmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, image.GetWidth(), image.GetHeight(), 1 );
 107     GC gc = XCreateGC( xdisplay, (Pixmap) m_bitmap, 0, NULL );
 108
 109     XSetForeground( xdisplay, gc, WhitePixel(xdisplay,xscreen) );
 110     XSetFillStyle( xdisplay, gc, FillSolid );
 111     XFillRectangle( xdisplay, (Pixmap) m_bitmap, gc, 0, 0, image.GetWidth(), image.GetHeight() );
 112
 113     unsigned char *data = image.GetData();
 114     int index = 0;
 115
 116     unsigned char red = colour.Red();
 117     unsigned char green = colour.Green();
 118     unsigned char blue = colour.Blue();
 119
 120     XVisualInfo vinfo_template;
 121     XVisualInfo *vi;
 122
 123     vinfo_template.visual = xvisual;
 124     vinfo_template.visualid = XVisualIDFromVisual( xvisual );
 125     vinfo_template.depth = bpp;
 126     int nitem = 0;
 127
 128     vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
 129     wxASSERT_MSG( vi, wxT("No visual info") );
 130
 131     if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15;
 132     if (bpp == 15)
 133     {
 134         red = red & 0xf8;
 135         green = green & 0xf8;
 136         blue = blue & 0xf8;
 137     } else
 138     if (bpp == 16)
 139     {
 140         red = red & 0xf8;
 141         green = green & 0xfc;
 142         blue = blue & 0xf8;
 143     } else
 144     if (bpp == 12)
 145     {
 146         red = red & 0xf0;
 147         green = green & 0xf0;
 148         blue = blue & 0xf0;
 149     }
 150
 151     XSetForeground( xdisplay, gc, BlackPixel(xdisplay,xscreen) );
 152
 153     int width = image.GetWidth();
 154     int height = image.GetHeight();
 155     for (int j = 0; j < height; j++)
 156     {
 157         int start_x = -1;
 158         int i;
 159         for (i = 0; i < width; i++)
 160         {
 161             if ((data[index] == red) &&
 162                 (data[index+1] == green) &&
 163                 (data[index+2] == blue))
 164             {
 165                 if (start_x == -1)
 166                 start_x = i;
 167             }
 168             else
 169             {
 170                 if (start_x != -1)
 171                 {
 172                     XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i-1, j );
 173                     start_x = -1;
 174                 }
 175             }
 176             index += 3;
 177         }
 178         if (start_x != -1)
 179             XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i, j );
 180     }
 181
 182     XFreeGC( xdisplay, gc );
 183
 184     return TRUE;
 185 #else
 186     return FALSE;
 187 #endif
 188     // wxUSE_NANOX
 189 }
 190
 191 bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex )
 192 {
 193     unsigned char r,g,b;
 194     wxPalette *pal = bitmap.GetPalette();
 195
 196     wxCHECK_MSG( pal, FALSE, wxT("Cannot create mask from bitmap without palette") );
 197
 198     pal->GetRGB(paletteIndex, &r, &g, &b);
 199
 200     return Create(bitmap, wxColour(r, g, b));
 201 }
 202
 203 bool wxMask::Create( const wxBitmap& bitmap )
 204 {
 205 #if !wxUSE_NANOX
 206     if (m_bitmap)
 207     {
 208         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 209         m_bitmap = NULL;
 210     }
 211
 212     if (!bitmap.Ok()) return FALSE;
 213
 214     wxCHECK_MSG( bitmap.GetBitmap(), FALSE, wxT("Cannot create mask from colour bitmap") );
 215
 216     m_display = bitmap.GetDisplay();
 217
 218     int xscreen = DefaultScreen( (Display*) m_display );
 219     Window xroot = RootWindow( (Display*) m_display, xscreen );
 220
 221     m_bitmap = (WXPixmap) XCreatePixmap( (Display*) m_display, xroot, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
 222
 223     if (!m_bitmap) return FALSE;
 224
 225     GC gc = XCreateGC( (Display*) m_display, (Pixmap) m_bitmap, 0, NULL );
 226
 227     XCopyPlane( (Display*) m_display, (Pixmap) bitmap.GetBitmap(), (Pixmap) m_bitmap,
 228        gc, 0, 0, bitmap.GetWidth(), bitmap.GetHeight(), 0, 0, 1 );
 229
 230     XFreeGC( (Display*) m_display, gc );
 231
 232     return TRUE;
 233 #else
 234     return FALSE;
 235 #endif
 236     // wxUSE_NANOX
 237 }
 238
 239 //-----------------------------------------------------------------------------
 240 // wxBitmap
 241 //-----------------------------------------------------------------------------
 242
 243 class wxBitmapRefData: public wxObjectRefData
 244 {
 245 public:
 246     wxBitmapRefData();
 247     ~wxBitmapRefData();
 248
 249     WXPixmap        m_pixmap;
 250     WXPixmap        m_bitmap;
 251     WXDisplay      *m_display;
 252     wxMask         *m_mask;
 253     int             m_width;
 254     int             m_height;
 255     int             m_bpp;
 256     wxPalette      *m_palette;
 257 };
 258
 259 wxBitmapRefData::wxBitmapRefData()
 260 {
 261     m_pixmap = NULL;
 262     m_bitmap = NULL;
 263     m_display = NULL;
 264     m_mask = (wxMask *) NULL;
 265     m_width = 0;
 266     m_height = 0;
 267     m_bpp = 0;
 268     m_palette = (wxPalette *) NULL;
 269 }
 270
 271 wxBitmapRefData::~wxBitmapRefData()
 272 {
 273     if (m_pixmap) XFreePixmap( (Display*) m_display, (Pixmap) m_pixmap );
 274     if (m_bitmap) XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 275     if (m_mask) delete m_mask;
 276     if (m_palette) delete m_palette;
 277 }
 278
 279 //-----------------------------------------------------------------------------
 280
 281 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
 282
 283 IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
 284
 285 wxBitmap::wxBitmap()
 286 {
 287 }
 288
 289 wxBitmap::wxBitmap( int width, int height, int depth )
 290 {
 291     Create( width, height, depth );
 292 }
 293
 294 bool wxBitmap::Create( int width, int height, int depth )
 295 {
 296     UnRef();
 297
 298     wxCHECK_MSG( (width > 0) && (height > 0), FALSE, wxT("invalid bitmap size") )
 299
 300     m_refData = new wxBitmapRefData();
 301
 302     M_BMPDATA->m_display = wxGlobalDisplay();
 303
 304     wxASSERT_MSG( M_BMPDATA->m_display, wxT("No display") );
 305
 306     int xscreen = DefaultScreen( (Display*) M_BMPDATA->m_display );
 307     Window xroot = RootWindow( (Display*) M_BMPDATA->m_display, xscreen );
 308
 309     int bpp = DefaultDepth( (Display*) M_BMPDATA->m_display, xscreen );
 310     if (depth == -1) depth = bpp;
 311
 312     wxCHECK_MSG( (depth == bpp) ||
 313                  (depth == 1), FALSE, wxT("invalid bitmap depth") )
 314
 315     M_BMPDATA->m_mask = (wxMask *) NULL;
 316     M_BMPDATA->m_width = width;
 317     M_BMPDATA->m_height = height;
 318
 319 #if wxUSE_NANOX
 320     M_BMPDATA->m_pixmap = (WXPixmap) GrNewPixmap(width, height, NULL);
 321     M_BMPDATA->m_bpp = bpp;
 322
 323     wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Bitmap creation failed") );
 324 #else
 325     if (depth == 1)
 326     {
 327         M_BMPDATA->m_bitmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, 1 );
 328
 329         wxASSERT_MSG( M_BMPDATA->m_bitmap, wxT("Bitmap creation failed") );
 330
 331         M_BMPDATA->m_bpp = 1;
 332     }
 333     else
 334     {
 335         M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, depth );
 336
 337         wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Pixmap creation failed") );
 338
 339         M_BMPDATA->m_bpp = depth;
 340     }
 341 #endif
 342     return Ok();
 343 }
 344
 345 bool wxBitmap::CreateFromXpm( const char **bits )
 346 {
 347 #if wxUSE_XPM
 348 #if wxHAVE_LIB_XPM
 349     UnRef();
 350
 351     wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
 352
 353     m_refData = new wxBitmapRefData();
 354
 355     M_BMPDATA->m_display = wxGlobalDisplay();
 356
 357     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 358
 359     int xscreen = DefaultScreen( xdisplay );
 360     Window xroot = RootWindow( xdisplay, xscreen );
 361
 362     int bpp = DefaultDepth( xdisplay, xscreen );
 363
 364     XpmAttributes xpmAttr;
 365     xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
 366
 367     Pixmap pixmap;
 368     Pixmap mask = 0;
 369
 370     int ErrorStatus = XpmCreatePixmapFromData( xdisplay, xroot, (char**) bits, &pixmap, &mask, &xpmAttr );
 371
 372     if (ErrorStatus == XpmSuccess)
 373     {
 374         M_BMPDATA->m_width = xpmAttr.width;
 375         M_BMPDATA->m_height = xpmAttr.height;
 376
 377         M_BMPDATA->m_bpp = bpp;  // mono as well?
 378
 379 #if __WXDEBUG__
 380         unsigned int depthRet;
 381         int xRet, yRet;
 382         unsigned int widthRet, heightRet, borderWidthRet;
 383         XGetGeometry( xdisplay, pixmap, &xroot, &xRet, &yRet,
 384             &widthRet, &heightRet, &borderWidthRet, &depthRet);
 385
 386         wxASSERT_MSG( bpp == (int)depthRet, wxT("colour depth mismatch") )
 387 #endif
 388
 389         XpmFreeAttributes(&xpmAttr);
 390
 391         M_BMPDATA->m_pixmap = (WXPixmap) pixmap;
 392
 393         if (mask)
 394         {
 395             M_BMPDATA->m_mask = new wxMask;
 396             M_BMPDATA->m_mask->SetBitmap( (WXPixmap) mask );
 397             M_BMPDATA->m_mask->SetDisplay( xdisplay );
 398         }
 399         return TRUE;
 400     }
 401     else
 402     {
 403         UnRef();
 404
 405         return FALSE;
 406     }
 407 #else
 408     wxXPMDecoder decoder;
 409     wxImage image(decoder.ReadData(bits));
 410     if (image.Ok())
 411         return CreateFromImage(image);
 412     else
 413         return FALSE;
 414 #endif
 415 #endif
 416     return FALSE;
 417 }
 418
 419 bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
 420 {
 421 #if wxUSE_NANOX
 422     if (!image.Ok())
 423     {
 424         wxASSERT_MSG(image.Ok(), "Invalid wxImage passed to wxBitmap::CreateFromImage.");
 425         return FALSE;
 426     }
 427
 428     int w = image.GetWidth();
 429     int h = image.GetHeight();
 430
 431     if (!Create(w, h, depth))
 432         return FALSE;
 433
 434     // Unfortunately the mask has to be screen-depth since
 435     // 1-bpp bitmaps don't seem to be supported
 436     // TODO: implement transparent drawing, presumably
 437     // by doing several blits as per the Windows
 438     // implementation because Nano-X doesn't support
 439     // XSetClipMask.
 440     // TODO: could perhaps speed this function up
 441     // by making a buffer of pixel values,
 442     // and then calling GrArea to write that to the
 443     // pixmap. See demos/nxroach.c.
 444
 445     bool hasMask = image.HasMask();
 446
 447     GC pixmapGC = GrNewGC();
 448     Pixmap pixmap = (Pixmap) GetPixmap();
 449
 450     GC maskGC = 0;
 451     Pixmap maskPixmap = 0;
 452
 453     unsigned char maskR = 0;
 454     unsigned char maskG = 0;
 455     unsigned char maskB = 0;
 456
 457     if (hasMask)
 458     {
 459         maskR = image.GetMaskRed();
 460         maskG = image.GetMaskGreen();
 461         maskB = image.GetMaskBlue();
 462
 463         maskGC = GrNewGC();
 464         maskPixmap = GrNewPixmap(w, h, 0);
 465         if (!maskPixmap)
 466             hasMask = FALSE;
 467         else
 468         {
 469             wxMask* mask = new wxMask;
 470             mask->SetBitmap((WXPixmap) maskPixmap);
 471             SetMask(mask);
 472         }
 473     }
 474
 475     GR_COLOR lastPixmapColour = 0;
 476     GR_COLOR lastMaskColour = 0;
 477
 478     int i, j;
 479     for (i = 0; i < w; i++)
 480     {
 481         for (j = 0; j < h; j++)
 482         {
 483             unsigned char red = image.GetRed(i, j);
 484             unsigned char green = image.GetGreen(i, j);
 485             unsigned char blue = image.GetBlue(i, j);
 486
 487             GR_COLOR colour = GR_RGB(red, green, blue);
 488
 489             // Efficiency measure
 490             if (colour != lastPixmapColour || (i == 0 && j == 0))
 491             {
 492                 GrSetGCForeground(pixmapGC, colour);
 493                 lastPixmapColour = colour;
 494             }
 495
 496             GrPoint(pixmap, pixmapGC, i, j);
 497
 498             if (hasMask)
 499             {
 500                 // scan the bitmap for the transparent colour and set the corresponding
 501                 // pixels in the mask to BLACK and the rest to WHITE
 502                 if (maskR == red && maskG == green && maskB == blue)
 503                 {
 504                     colour = GR_RGB(0, 0, 0);
 505                 }
 506                 else
 507                 {
 508                     colour = GR_RGB(255, 255, 255);
 509                 }
 510                 if (colour != lastMaskColour || (i == 0 && j == 0))
 511                 {
 512                     GrSetGCForeground(maskGC, colour);
 513                     lastMaskColour = colour;
 514                 }
 515                 GrPoint(maskPixmap, maskGC, i, j);
 516             }
 517         }
 518     }
 519
 520     GrDestroyGC(pixmapGC);
 521     if (hasMask)
 522         GrDestroyGC(maskGC);
 523
 524     return TRUE;
 525 #else
 526     // !wxUSE_NANOX
 527
 528     UnRef();
 529
 530     wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") )
 531     wxCHECK_MSG( depth == -1, FALSE, wxT("invalid bitmap depth") )
 532
 533     m_refData = new wxBitmapRefData();
 534
 535     M_BMPDATA->m_display = wxGlobalDisplay();
 536
 537     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 538
 539     int xscreen = DefaultScreen( xdisplay );
 540     Window xroot = RootWindow( xdisplay, xscreen );
 541     Visual* xvisual = DefaultVisual( xdisplay, xscreen );
 542
 543     int bpp = DefaultDepth( xdisplay, xscreen );
 544
 545     int width = image.GetWidth();
 546     int height = image.GetHeight();
 547     M_BMPDATA->m_width = width;
 548     M_BMPDATA->m_height = height;
 549
 550     if (depth != 1) depth = bpp;
 551     M_BMPDATA->m_bpp = depth;
 552
 553     if (depth == 1)
 554     {
 555         wxFAIL_MSG( "mono images later" );
 556     }
 557     else
 558     {
 559         // Create image
 560
 561         XImage *data_image = XCreateImage( xdisplay, xvisual, bpp, ZPixmap, 0, 0, width, height, 32, 0 );
 562         data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height );
 563
 564         if (data_image->data == NULL)
 565         {
 566             wxLogError( wxT("Out of memory.") );  // TODO clean
 567             return FALSE;
 568         }
 569
 570         M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, depth );
 571
 572         // Create mask
 573
 574         XImage *mask_image = (XImage*) NULL;
 575         if (image.HasMask())
 576         {
 577             mask_image = XCreateImage( xdisplay, xvisual, 1, ZPixmap, 0, 0, width, height, 32, 0 );
 578             mask_image->data = (char*) malloc( mask_image->bytes_per_line * mask_image->height );
 579
 580             if (mask_image->data == NULL)
 581             {
 582                 wxLogError( wxT("Out of memory.") ); // TODO clean
 583                 return FALSE;
 584             }
 585
 586             wxMask *mask = new wxMask();
 587             mask->SetDisplay( xdisplay );
 588             mask->SetBitmap( (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, 1 ) );
 589
 590             SetMask( mask );
 591         }
 592
 593         // Retrieve info
 594
 595         XVisualInfo vinfo_template;
 596         XVisualInfo *vi;
 597
 598         vinfo_template.visual = xvisual;
 599         vinfo_template.visualid = XVisualIDFromVisual( xvisual );
 600         vinfo_template.depth = bpp;
 601         int nitem = 0;
 602
 603         vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
 604         wxASSERT_MSG( vi, wxT("No visual info") );
 605
 606         if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15;
 607         if (bpp < 8) bpp = 8;
 608
 609         // Render
 610
 611         enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
 612         byte_order b_o = RGB;
 613
 614         if (bpp > 8)
 615         {
 616             if ((vi->red_mask > vi->green_mask) && (vi->green_mask > vi->blue_mask))      b_o = RGB;
 617             else if ((vi->red_mask > vi->blue_mask) && (vi->blue_mask > vi->green_mask))  b_o = RBG;
 618             else if ((vi->blue_mask > vi->red_mask) && (vi->red_mask > vi->green_mask))   b_o = BRG;
 619             else if ((vi->blue_mask > vi->green_mask) && (vi->green_mask > vi->red_mask)) b_o = BGR;
 620             else if ((vi->green_mask > vi->red_mask) && (vi->red_mask > vi->blue_mask))   b_o = GRB;
 621             else if ((vi->green_mask > vi->blue_mask) && (vi->blue_mask > vi->red_mask))  b_o = GBR;
 622         }
 623
 624         XFree( vi );
 625
 626         int r_mask = image.GetMaskRed();
 627         int g_mask = image.GetMaskGreen();
 628         int b_mask = image.GetMaskBlue();
 629
 630         unsigned char* data = image.GetData();
 631         wxASSERT_MSG( data, "No image data" );
 632
 633         bool hasMask = image.HasMask();
 634
 635         int index = 0;
 636         for (int y = 0; y < height; y++)
 637         {
 638             for (int x = 0; x < width; x++)
 639             {
 640                 int r = data[index];
 641                 index++;
 642                 int g = data[index];
 643                 index++;
 644                 int b = data[index];
 645                 index++;
 646
 647                 if (hasMask)
 648                 {
 649                     if ((r == r_mask) && (b == b_mask) && (g == g_mask))
 650                         XPutPixel( mask_image, x, y, 0 );
 651                     else
 652                         XPutPixel( mask_image, x, y, 1 );
 653                 }
 654
 655                 switch (bpp)
 656                 {
 657                     case 8:
 658                     {
 659                         int pixel = 0;
 660 #if 0
 661                         if (wxTheApp->m_colorCube)
 662                         {
 663                             pixel = wxTheApp->m_colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
 664                         }
 665                         else
 666                         {
 667                             GdkColormap *cmap = gtk_widget_get_default_colormap();
 668                             GdkColor *colors = cmap->colors;
 669                             int max = 3 * (65536);
 670
 671                             for (int i = 0; i < cmap->size; i++)
 672                             {
 673                                 int rdiff = (r << 8) - colors[i].red;
 674                                 int gdiff = (g << 8) - colors[i].green;
 675                                 int bdiff = (b << 8) - colors[i].blue;
 676                                 int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
 677                                 if (sum < max) { pixel = i; max = sum; }
 678                             }
 679                         }
 680 #endif
 681                         XPutPixel( data_image, x, y, pixel );
 682                         break;
 683                     }
 684                     case 12:  // SGI only
 685                     {
 686                         int pixel = 0;
 687                         switch (b_o)
 688                         {
 689                             case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break;
 690                             case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break;
 691                             case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break;
 692                             case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break;
 693                             case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break;
 694                             case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break;
 695                         }
 696                         XPutPixel( data_image, x, y, pixel );
 697                         break;
 698                     }
 699                     case 15:
 700                     {
 701                         int pixel = 0;
 702                         switch (b_o)
 703                         {
 704                             case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 705                             case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 706                             case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 707                             case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 708                             case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 709                             case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 710                         }
 711                         XPutPixel( data_image, x, y, pixel );
 712                         break;
 713                     }
 714                     case 16:
 715                     {
 716                         // I actually don't know if for 16-bit displays, it is alway the green
 717                         // component or the second component which has 6 bits.
 718                         int pixel = 0;
 719                         switch (b_o)
 720                         {
 721                             case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 722                             case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 723                             case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 724                             case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 725                             case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 726                             case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 727                         }
 728                         XPutPixel( data_image, x, y, pixel );
 729                         break;
 730                     }
 731                     case 32:
 732                     case 24:
 733                     {
 734                         int pixel = 0;
 735                         switch (b_o)
 736                         {
 737                             case RGB: pixel = (r << 16) | (g << 8) | b; break;
 738                             case RBG: pixel = (r << 16) | (b << 8) | g; break;
 739                             case BRG: pixel = (b << 16) | (r << 8) | g; break;
 740                             case BGR: pixel = (b << 16) | (g << 8) | r; break;
 741                             case GRB: pixel = (g << 16) | (r << 8) | b; break;
 742                             case GBR: pixel = (g << 16) | (b << 8) | r; break;
 743                         }
 744                         XPutPixel( data_image, x, y, pixel );
 745                     }
 746                     default: break;
 747                 }
 748             } // for
 749         }  // for
 750
 751         // Blit picture
 752
 753         GC gc = XCreateGC( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, 0, NULL );
 754         XPutImage( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, gc, data_image, 0, 0, 0, 0, width, height );
 755 #ifdef __WXDEBUG__
 756         XSync(wxGlobalDisplay(), False);
 757 #endif
 758
 759         XDestroyImage( data_image );
 760         XFreeGC( xdisplay, gc );
 761
 762         // Blit mask
 763
 764         if (image.HasMask())
 765         {
 766             GC gc = XCreateGC( xdisplay, (Pixmap) GetMask()->GetBitmap(), 0, NULL );
 767             XPutImage( xdisplay, (Pixmap) GetMask()->GetBitmap(), gc, mask_image, 0, 0, 0, 0, width, height );
 768
 769             XDestroyImage( mask_image );
 770             XFreeGC( xdisplay, gc );
 771         }
 772     }
 773
 774     return TRUE;
 775 #endif
 776     // wxUSE_NANOX
 777 }
 778
 779 static void wxCalcPrecAndShift( unsigned long mask, int *shift, int *prec )
 780 {
 781   *shift = 0;
 782   *prec = 0;
 783
 784   while (!(mask & 0x1))
 785     {
 786       (*shift)++;
 787       mask >>= 1;
 788     }
 789
 790   while (mask & 0x1)
 791     {
 792       (*prec)++;
 793       mask >>= 1;
 794     }
 795 }
 796
 797 wxImage wxBitmap::ConvertToImage() const
 798 {
 799     wxImage image;
 800
 801     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
 802
 803     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 804     wxASSERT_MSG( xdisplay, wxT("No display") );
 805
 806     int xscreen = DefaultScreen( xdisplay );
 807     Visual* xvisual = DefaultVisual( xdisplay, xscreen );
 808
 809     int bpp = DefaultDepth( xdisplay, xscreen );
 810
 811 #if wxUSE_NANOX
 812     wxGetImageFromDrawable((Pixmap) GetPixmap(), 0, 0, GetWidth(), GetHeight(), image);
 813     return image;
 814 #else
 815     // !wxUSE_NANOX
 816     XImage *x_image = NULL;
 817     if (GetPixmap())
 818     {
 819         x_image = XGetImage( xdisplay, (Pixmap) GetPixmap(),
 820             0, 0,
 821             GetWidth(), GetHeight(),
 822             AllPlanes, ZPixmap );
 823     } else
 824     if (GetBitmap())
 825     {
 826         x_image = XGetImage( xdisplay, (Pixmap) GetBitmap(),
 827             0, 0,
 828             GetWidth(), GetHeight(),
 829             AllPlanes, ZPixmap );
 830     } else
 831     {
 832         wxFAIL_MSG( wxT("Ill-formed bitmap") );
 833     }
 834
 835     wxCHECK_MSG( x_image, wxNullImage, wxT("couldn't create image") );
 836
 837     image.Create( GetWidth(), GetHeight() );
 838     char unsigned *data = image.GetData();
 839
 840     if (!data)
 841     {
 842         XDestroyImage( x_image );
 843         wxFAIL_MSG( wxT("couldn't create image") );
 844         return wxNullImage;
 845     }
 846
 847     XImage *x_image_mask = NULL;
 848     if (GetMask())
 849     {
 850         x_image_mask = XGetImage( xdisplay, (Pixmap) GetMask()->GetBitmap(),
 851             0, 0,
 852             GetWidth(), GetHeight(),
 853             AllPlanes, ZPixmap );
 854
 855         image.SetMaskColour( 16, 16, 16 );  // anything unlikely and dividable
 856     }
 857
 858     int red_shift_right = 0;
 859     int green_shift_right = 0;
 860     int blue_shift_right = 0;
 861     int red_shift_left = 0;
 862     int green_shift_left = 0;
 863     int blue_shift_left = 0;
 864     bool use_shift = FALSE;
 865
 866     if (GetPixmap())
 867     {
 868         // Retrieve info
 869
 870         XVisualInfo vinfo_template;
 871         XVisualInfo *vi;
 872
 873         vinfo_template.visual = xvisual;
 874         vinfo_template.visualid = XVisualIDFromVisual( xvisual );
 875         vinfo_template.depth = bpp;
 876         int nitem = 0;
 877
 878         vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
 879         wxASSERT_MSG( vi, wxT("No visual info") );
 880
 881         int red_prec,green_prec,blue_prec;
 882         int red_shift,green_shift,blue_shift;
 883         wxCalcPrecAndShift( vi->red_mask, &red_shift, &red_prec );
 884         wxCalcPrecAndShift( vi->green_mask, &green_shift, &green_prec );
 885         wxCalcPrecAndShift( vi->blue_mask, &blue_shift, &blue_prec );
 886         if (bpp == 16) bpp = red_prec + green_prec + blue_prec;
 887
 888         red_shift_right = red_shift;
 889         red_shift_left = 8-red_prec;
 890         green_shift_right = green_shift;
 891         green_shift_left = 8-green_prec;
 892         blue_shift_right = blue_shift;
 893         blue_shift_left = 8-blue_prec;
 894
 895 #if 0
 896         use_shift = (vi->visual->c_class == TrueColor) || (vi->visual->c_class == DirectColor);
 897 #else
 898         use_shift = TRUE;
 899 #endif
 900
 901         XFree( vi );
 902     }
 903     if (GetBitmap())
 904     {
 905         bpp = 1;
 906     }
 907
 908
 909 //    GdkColormap *cmap = gtk_widget_get_default_colormap();
 910
 911     int width = GetWidth();
 912     int height = GetHeight();
 913     long pos = 0;
 914     for (int j = 0; j < height; j++)
 915     {
 916         for (int i = 0; i < width; i++)
 917         {
 918             unsigned long pixel = XGetPixel( x_image, i, j );
 919             if (bpp == 1)
 920             {
 921                 if (pixel == 0)
 922                 {
 923                     data[pos]   = 0;
 924                     data[pos+1] = 0;
 925                     data[pos+2] = 0;
 926                 }
 927                 else
 928                 {
 929                     data[pos]   = 255;
 930                     data[pos+1] = 255;
 931                     data[pos+2] = 255;
 932                 }
 933             }
 934             else if (use_shift)
 935             {
 936                 data[pos] =   (pixel >> red_shift_right)   << red_shift_left;
 937                 data[pos+1] = (pixel >> green_shift_right) << green_shift_left;
 938                 data[pos+2] = (pixel >> blue_shift_right)  << blue_shift_left;
 939             }
 940 #if 0
 941             else if (cmap->colors)
 942             {
 943                 data[pos] =   cmap->colors[pixel].red   >> 8;
 944                 data[pos+1] = cmap->colors[pixel].green >> 8;
 945                 data[pos+2] = cmap->colors[pixel].blue  >> 8;
 946             }
 947 #endif
 948             else
 949             {
 950                 wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
 951             }
 952
 953             if (x_image_mask)
 954             {
 955                 int mask_pixel = XGetPixel( x_image_mask, i, j );
 956                 if (mask_pixel == 0)
 957                 {
 958                     data[pos] = 16;
 959                     data[pos+1] = 16;
 960                     data[pos+2] = 16;
 961                 }
 962             }
 963
 964             pos += 3;
 965         }
 966     }
 967
 968     XDestroyImage( x_image );
 969     if (x_image_mask) XDestroyImage( x_image_mask );
 970     return image;
 971 #endif
 972     // wxUSE_NANOX
 973 }
 974
 975 wxBitmap::wxBitmap( const wxBitmap& bmp )
 976 {
 977     Ref( bmp );
 978 }
 979
 980 wxBitmap::wxBitmap( const wxString &filename, int type )
 981 {
 982     LoadFile( filename, type );
 983 }
 984
 985 wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth) )
 986 {
 987 #if !wxUSE_NANOX
 988     m_refData = new wxBitmapRefData();
 989
 990     M_BMPDATA->m_display = wxGlobalDisplay();
 991
 992     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 993
 994     int xscreen = DefaultScreen( xdisplay );
 995     Window xroot = RootWindow( xdisplay, xscreen );
 996
 997     M_BMPDATA->m_mask = (wxMask *) NULL;
 998     M_BMPDATA->m_bitmap = (WXPixmap) XCreateBitmapFromData( xdisplay, xroot, (char *) bits, width, height );
 999     M_BMPDATA->m_width = width;
1000     M_BMPDATA->m_height = height;
1001     M_BMPDATA->m_bpp = 1;
1002 #endif
1003     wxCHECK_RET( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
1004 }
1005
1006 wxBitmap::~wxBitmap()
1007 {
1008 }
1009
1010 wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
1011 {
1012     if ( m_refData != bmp.m_refData )
1013         Ref( bmp );
1014
1015     return *this;
1016 }
1017
1018 bool wxBitmap::operator == ( const wxBitmap& bmp ) const
1019 {
1020     return m_refData == bmp.m_refData;
1021 }
1022
1023 bool wxBitmap::operator != ( const wxBitmap& bmp ) const
1024 {
1025     return m_refData != bmp.m_refData;
1026 }
1027
1028 bool wxBitmap::Ok() const
1029 {
1030     return (m_refData != NULL);
1031 }
1032
1033 int wxBitmap::GetHeight() const
1034 {
1035     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1036
1037     return M_BMPDATA->m_height;
1038 }
1039
1040 int wxBitmap::GetWidth() const
1041 {
1042     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1043
1044     return M_BMPDATA->m_width;
1045 }
1046
1047 int wxBitmap::GetDepth() const
1048 {
1049     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1050
1051     return M_BMPDATA->m_bpp;
1052 }
1053
1054 wxMask *wxBitmap::GetMask() const
1055 {
1056     wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
1057
1058     return M_BMPDATA->m_mask;
1059 }
1060
1061 void wxBitmap::SetMask( wxMask *mask )
1062 {
1063     wxCHECK_RET( Ok(), wxT("invalid bitmap") );
1064
1065     if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
1066
1067     M_BMPDATA->m_mask = mask;
1068 }
1069
1070 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
1071 {
1072     *this = icon;
1073     return TRUE;
1074 }
1075
1076 wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
1077 {
1078     wxCHECK_MSG( Ok() &&
1079                  (rect.x >= 0) && (rect.y >= 0) &&
1080                  (rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
1081                  wxNullBitmap, wxT("invalid bitmap or bitmap region") );
1082
1083     wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
1084     wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
1085
1086
1087     wxFAIL_MSG( "wxBitmap::GetSubBitmap not yet implemented" );
1088
1089 #if 0
1090     if (ret.GetPixmap())
1091     {
1092         GdkGC *gc = gdk_gc_new( ret.GetPixmap() );
1093         gdk_draw_pixmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
1094         gdk_gc_destroy( gc );
1095     }
1096     else
1097     {
1098         GdkGC *gc = gdk_gc_new( ret.GetBitmap() );
1099         gdk_wx_draw_bitmap( ret.GetBitmap(), gc, GetBitmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
1100         gdk_gc_destroy( gc );
1101     }
1102
1103     if (GetMask())
1104     {
1105         wxMask *mask = new wxMask;
1106         mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, rect.width, rect.height, 1 );
1107
1108         GdkGC *gc = gdk_gc_new( mask->m_bitmap );
1109         gdk_wx_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, 0, 0, rect.x, rect.y, rect.width, rect.height );
1110         gdk_gc_destroy( gc );
1111
1112         ret.SetMask( mask );
1113     }
1114 #endif
1115
1116     return ret;
1117 }
1118
1119 bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
1120 {
1121     wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") );
1122
1123     // Try to save the bitmap via wxImage handlers:
1124     {
1125         wxImage image( *this );
1126         if (image.Ok()) return image.SaveFile( name, type );
1127     }
1128
1129     return FALSE;
1130 }
1131
1132 bool wxBitmap::LoadFile( const wxString &name, int type )
1133 {
1134     UnRef();
1135
1136     if (!wxFileExists(name)) return FALSE;
1137
1138
1139     if (type == wxBITMAP_TYPE_XPM)
1140     {
1141 #if wxUSE_XPM
1142 #if wxHAVE_LIB_XPM
1143         m_refData = new wxBitmapRefData();
1144
1145         M_BMPDATA->m_display = wxGlobalDisplay();
1146
1147         Display *xdisplay = (Display*) M_BMPDATA->m_display;
1148
1149         int xscreen = DefaultScreen( xdisplay );
1150         Window xroot = RootWindow( xdisplay, xscreen );
1151
1152         int bpp = DefaultDepth( xdisplay, xscreen );
1153
1154         XpmAttributes xpmAttr;
1155         xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
1156
1157         Pixmap pixmap;
1158         Pixmap mask = 0;
1159
1160         int ErrorStatus = XpmReadFileToPixmap( xdisplay, xroot, (char*) name.c_str(), &pixmap, &mask, &xpmAttr);
1161
1162         if (ErrorStatus == XpmSuccess)
1163         {
1164             M_BMPDATA->m_width = xpmAttr.width;
1165             M_BMPDATA->m_height = xpmAttr.height;
1166
1167             M_BMPDATA->m_bpp = bpp;  // mono as well?
1168
1169             XpmFreeAttributes(&xpmAttr);
1170
1171             M_BMPDATA->m_bitmap = (WXPixmap) pixmap;
1172
1173             if (mask)
1174             {
1175                 M_BMPDATA->m_mask = new wxMask;
1176                 M_BMPDATA->m_mask->SetBitmap( (WXPixmap) mask );
1177                 M_BMPDATA->m_mask->SetDisplay( xdisplay );
1178             }
1179         }
1180         else
1181         {
1182             UnRef();
1183
1184             return FALSE;
1185         }
1186 #else
1187 #if wxUSE_STREAMS
1188         wxXPMDecoder decoder;
1189         wxFileInputStream stream(name);
1190         if (stream.Ok())
1191         {
1192             wxImage image(decoder.ReadFile(stream));
1193             if (image.Ok())
1194                 return CreateFromImage(image);
1195             else
1196                 return FALSE;
1197         }
1198         else
1199             return FALSE;
1200 #else
1201         return FALSE;
1202 #endif
1203         // wxUSE_STREAMS
1204 #endif
1205         // wxHAVE_LIB_XPM
1206 #endif
1207         // wxUSE_XPM
1208         return FALSE;
1209     }
1210     else // try if wxImage can load it
1211     {
1212         wxImage image;
1213         if (!image.LoadFile( name, type )) return FALSE;
1214         if (image.Ok()) *this = image.ConvertToBitmap();
1215         else return FALSE;
1216     }
1217
1218     return TRUE;
1219 }
1220
1221 wxPalette *wxBitmap::GetPalette() const
1222 {
1223     if (!Ok()) return (wxPalette *) NULL;
1224
1225     return M_BMPDATA->m_palette;
1226 }
1227
1228 void wxBitmap::SetHeight( int height )
1229 {
1230     if (!m_refData) m_refData = new wxBitmapRefData();
1231
1232     M_BMPDATA->m_height = height;
1233 }
1234
1235 void wxBitmap::SetWidth( int width )
1236 {
1237     if (!m_refData) m_refData = new wxBitmapRefData();
1238
1239     M_BMPDATA->m_width = width;
1240 }
1241
1242 void wxBitmap::SetDepth( int depth )
1243 {
1244     if (!m_refData) m_refData = new wxBitmapRefData();
1245
1246     M_BMPDATA->m_bpp = depth;
1247 }
1248
1249 void wxBitmap::SetPixmap( WXPixmap pixmap )
1250 {
1251     if (!m_refData) m_refData = new wxBitmapRefData();
1252
1253     M_BMPDATA->m_pixmap = pixmap;
1254 }
1255
1256 void wxBitmap::SetBitmap( WXPixmap bitmap )
1257 {
1258     if (!m_refData) m_refData = new wxBitmapRefData();
1259
1260     M_BMPDATA->m_bitmap = bitmap;
1261 }
1262
1263 WXPixmap wxBitmap::GetPixmap() const
1264 {
1265     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1266
1267     return M_BMPDATA->m_pixmap;
1268 }
1269
1270 WXPixmap wxBitmap::GetBitmap() const
1271 {
1272     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1273
1274     return M_BMPDATA->m_bitmap;
1275 }
1276
1277 WXDisplay *wxBitmap::GetDisplay() const
1278 {
1279     wxCHECK_MSG( Ok(), (WXDisplay*) NULL, wxT("invalid bitmap") );
1280
1281     return M_BMPDATA->m_display;
1282 }
1283
1284 #if wxUSE_NANOX
1285 // Copy from the drawable to the wxImage
1286 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image)
1287 {
1288     GR_SCREEN_INFO sinfo;
1289     int x, y;
1290     GR_PIXELVAL *pixels;
1291     GR_PALETTE* palette = NULL;
1292     unsigned char rgb[3], *pp;
1293
1294     GrGetScreenInfo(&sinfo);
1295
1296     if (sinfo.pixtype == MWPF_PALETTE) {
1297                 if(!(palette = (GR_PALETTE*) malloc(sizeof(GR_PALETTE)))) {
1298                         return FALSE;
1299                 }
1300                 GrGetSystemPalette(palette);
1301         }
1302
1303     if(!(pixels = (GR_PIXELVAL*) malloc(sizeof(GR_PIXELVAL) * width * height)))
1304     {
1305         return FALSE;
1306     }
1307
1308     image.Create(width, height);
1309
1310         GrReadArea(drawable, srcX, srcY, width, height,
1311                                                 pixels);
1312
1313
1314                 for(x = 0; x < sinfo.cols; x++) {
1315
1316                         pp = (unsigned char *)pixels +
1317                                 ((x + (y * sinfo.cols)) *
1318                                 sizeof(GR_PIXELVAL));
1319
1320                         switch(sinfo.pixtype) {
1321                         /* FIXME: These may need modifying on big endian. */
1322                                 case MWPF_TRUECOLOR0888:
1323                                 case MWPF_TRUECOLOR888:
1324                                         rgb[0] = pp[2];
1325                                         rgb[1] = pp[1];
1326                                         rgb[2] = pp[0];
1327                                         break;
1328                                 case MWPF_PALETTE:
1329                                         rgb[0] = palette->palette[pp[0]].r;
1330                                         rgb[1] = palette->palette[pp[0]].g;
1331                                         rgb[2] = palette->palette[pp[0]].b;
1332                                         break;
1333                                 case MWPF_TRUECOLOR565:
1334                                         rgb[0] = pp[1] & 0xf8;
1335                                         rgb[1] = ((pp[1] & 0x07) << 5) |
1336                                                 ((pp[0] & 0xe0) >> 3);
1337                                         rgb[2] = (pp[0] & 0x1f) << 3;
1338                                         break;
1339                                 case MWPF_TRUECOLOR555:
1340                                         rgb[0] = (pp[1] & 0x7c) << 1;
1341                                         rgb[1] = ((pp[1] & 0x03) << 6) |
1342                                                 ((pp[0] & 0xe0) >> 2);
1343                                         rgb[2] = (pp[0] & 0x1f) << 3;
1344                                         break;
1345                                 case MWPF_TRUECOLOR332:
1346                                         rgb[0] = pp[0] & 0xe0;
1347                                         rgb[1] = (pp[0] & 0x1c) << 3;
1348                                         rgb[2] = (pp[0] & 0x03) << 6;
1349                                         break;
1350                                 default:
1351                                         fprintf(stderr, "Unsupported pixel "
1352                                                         "format\n");
1353                                         return 1;
1354                         }
1355
1356             image.SetRGB(x, y, rgb[0], rgb[1], rgb[2]);
1357
1358         }
1359
1360     free(pixels);
1361     if(palette) free(palette);
1362
1363     return TRUE;
1364 }
1365
1366 #if 0
1367 int GrGetPixelColor(GR_SCREEN_INFO* sinfo, GR_PALETTE* palette, GR_PIXELVAL pixel,
1368     unsigned char* red, unsigned char* green, unsigned char* blue)
1369 {
1370         unsigned char rgb[3], *pp;
1371
1372     pp = (unsigned char*) & pixel ;
1373
1374     switch (sinfo.pixtype)
1375     {
1376                         /* FIXME: These may need modifying on big endian. */
1377                                 case MWPF_TRUECOLOR0888:
1378                                 case MWPF_TRUECOLOR888:
1379                                         rgb[0] = pp[2];
1380                                         rgb[1] = pp[1];
1381                                         rgb[2] = pp[0];
1382                                         break;
1383                                 case MWPF_PALETTE:
1384                                         rgb[0] = palette->palette[pp[0]].r;
1385                                         rgb[1] = palette->palette[pp[0]].g;
1386                                         rgb[2] = palette->palette[pp[0]].b;
1387                                         break;
1388                                 case MWPF_TRUECOLOR565:
1389                                         rgb[0] = pp[1] & 0xf8;
1390                                         rgb[1] = ((pp[1] & 0x07) << 5) |
1391                                                 ((pp[0] & 0xe0) >> 3);
1392                                         rgb[2] = (pp[0] & 0x1f) << 3;
1393                                         break;
1394                                 case MWPF_TRUECOLOR555:
1395                                         rgb[0] = (pp[1] & 0x7c) << 1;
1396                                         rgb[1] = ((pp[1] & 0x03) << 6) |
1397                                                 ((pp[0] & 0xe0) >> 2);
1398                                         rgb[2] = (pp[0] & 0x1f) << 3;
1399                                         break;
1400                                 case MWPF_TRUECOLOR332:
1401                                         rgb[0] = pp[0] & 0xe0;
1402                                         rgb[1] = (pp[0] & 0x1c) << 3;
1403                                         rgb[2] = (pp[0] & 0x03) << 6;
1404                                         break;
1405                                 default:
1406                                         fprintf(stderr, "Unsupported pixel format\n");
1407                                         return 0;
1408         }
1409
1410
1411     *(red) = rgb[0];
1412     *(green) = rgb[1];
1413     *(blue) = rgb[2];
1414     return 1;
1415 }
1416 #endif
1417
1418 #endif
1419   // wxUSE_NANOX
1420