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     for (int j = 0; j < image.GetHeight(); j++)
 154     {
 155         int start_x = -1;
 156         int i;
 157         for (i = 0; i < image.GetWidth(); i++)
 158         {
 159             if ((data[index] == red) &&
 160                 (data[index+1] == green) &&
 161                 (data[index+2] == blue))
 162             {
 163                 if (start_x == -1)
 164                 start_x = i;
 165             }
 166             else
 167             {
 168                 if (start_x != -1)
 169                 {
 170                     XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i-1, j );
 171                     start_x = -1;
 172                 }
 173             }
 174             index += 3;
 175         }
 176         if (start_x != -1)
 177             XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i, j );
 178     }
 179
 180     XFreeGC( xdisplay, gc );
 181
 182     return TRUE;
 183 #else
 184     return FALSE;
 185 #endif
 186     // wxUSE_NANOX
 187 }
 188
 189 bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex )
 190 {
 191     unsigned char r,g,b;
 192     wxPalette *pal = bitmap.GetPalette();
 193
 194     wxCHECK_MSG( pal, FALSE, wxT("Cannot create mask from bitmap without palette") );
 195
 196     pal->GetRGB(paletteIndex, &r, &g, &b);
 197
 198     return Create(bitmap, wxColour(r, g, b));
 199 }
 200
 201 bool wxMask::Create( const wxBitmap& bitmap )
 202 {
 203 #if !wxUSE_NANOX
 204     if (m_bitmap)
 205     {
 206         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 207         m_bitmap = NULL;
 208     }
 209
 210     if (!bitmap.Ok()) return FALSE;
 211
 212     wxCHECK_MSG( bitmap.GetBitmap(), FALSE, wxT("Cannot create mask from colour bitmap") );
 213
 214     m_display = bitmap.GetDisplay();
 215
 216     int xscreen = DefaultScreen( (Display*) m_display );
 217     Window xroot = RootWindow( (Display*) m_display, xscreen );
 218
 219     m_bitmap = (WXPixmap) XCreatePixmap( (Display*) m_display, xroot, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
 220
 221     if (!m_bitmap) return FALSE;
 222
 223     GC gc = XCreateGC( (Display*) m_display, (Pixmap) m_bitmap, 0, NULL );
 224
 225     XCopyPlane( (Display*) m_display, (Pixmap) bitmap.GetBitmap(), (Pixmap) m_bitmap,
 226        gc, 0, 0, bitmap.GetWidth(), bitmap.GetHeight(), 0, 0, 1 );
 227
 228     XFreeGC( (Display*) m_display, gc );
 229
 230     return TRUE;
 231 #else
 232     return FALSE;
 233 #endif
 234     // wxUSE_NANOX
 235 }
 236
 237 //-----------------------------------------------------------------------------
 238 // wxBitmap
 239 //-----------------------------------------------------------------------------
 240
 241 class wxBitmapRefData: public wxObjectRefData
 242 {
 243 public:
 244     wxBitmapRefData();
 245     ~wxBitmapRefData();
 246
 247     WXPixmap        m_pixmap;
 248     WXPixmap        m_bitmap;
 249     WXDisplay      *m_display;
 250     wxMask         *m_mask;
 251     int             m_width;
 252     int             m_height;
 253     int             m_bpp;
 254     wxPalette      *m_palette;
 255 };
 256
 257 wxBitmapRefData::wxBitmapRefData()
 258 {
 259     m_pixmap = NULL;
 260     m_bitmap = NULL;
 261     m_display = NULL;
 262     m_mask = (wxMask *) NULL;
 263     m_width = 0;
 264     m_height = 0;
 265     m_bpp = 0;
 266     m_palette = (wxPalette *) NULL;
 267 }
 268
 269 wxBitmapRefData::~wxBitmapRefData()
 270 {
 271     if (m_pixmap) XFreePixmap( (Display*) m_display, (Pixmap) m_pixmap );
 272     if (m_bitmap) XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 273     if (m_mask) delete m_mask;
 274     if (m_palette) delete m_palette;
 275 }
 276
 277 //-----------------------------------------------------------------------------
 278
 279 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
 280
 281 IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
 282
 283 wxBitmap::wxBitmap()
 284 {
 285 }
 286
 287 wxBitmap::wxBitmap( int width, int height, int depth )
 288 {
 289     Create( width, height, depth );
 290 }
 291
 292 bool wxBitmap::Create( int width, int height, int depth )
 293 {
 294     UnRef();
 295
 296     wxCHECK_MSG( (width > 0) && (height > 0), FALSE, wxT("invalid bitmap size") )
 297
 298     m_refData = new wxBitmapRefData();
 299
 300     M_BMPDATA->m_display = wxGlobalDisplay();
 301
 302     wxASSERT_MSG( M_BMPDATA->m_display, wxT("No display") );
 303
 304     int xscreen = DefaultScreen( (Display*) M_BMPDATA->m_display );
 305     Window xroot = RootWindow( (Display*) M_BMPDATA->m_display, xscreen );
 306
 307     int bpp = DefaultDepth( (Display*) M_BMPDATA->m_display, xscreen );
 308     if (depth == -1) depth = bpp;
 309
 310     wxCHECK_MSG( (depth == bpp) ||
 311                  (depth == 1), FALSE, wxT("invalid bitmap depth") )
 312
 313     M_BMPDATA->m_mask = (wxMask *) NULL;
 314     M_BMPDATA->m_width = width;
 315     M_BMPDATA->m_height = height;
 316
 317 #if wxUSE_NANOX
 318     M_BMPDATA->m_pixmap = (WXPixmap) GrNewPixmap(width, height, NULL);
 319     M_BMPDATA->m_bpp = bpp;
 320
 321     wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Bitmap creation failed") );
 322 #else
 323     if (depth == 1)
 324     {
 325         M_BMPDATA->m_bitmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, 1 );
 326
 327         wxASSERT_MSG( M_BMPDATA->m_bitmap, wxT("Bitmap creation failed") );
 328
 329         M_BMPDATA->m_bpp = 1;
 330     }
 331     else
 332     {
 333         M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, depth );
 334
 335         wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Pixmap creation failed") );
 336
 337         M_BMPDATA->m_bpp = depth;
 338     }
 339 #endif
 340     return Ok();
 341 }
 342
 343 bool wxBitmap::CreateFromXpm( const char **bits )
 344 {
 345 #if wxUSE_XPM
 346 #if wxHAVE_LIB_XPM
 347     UnRef();
 348
 349     wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
 350
 351     m_refData = new wxBitmapRefData();
 352
 353     M_BMPDATA->m_display = wxGlobalDisplay();
 354
 355     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 356
 357     int xscreen = DefaultScreen( xdisplay );
 358     Window xroot = RootWindow( xdisplay, xscreen );
 359
 360     int bpp = DefaultDepth( xdisplay, xscreen );
 361
 362     XpmAttributes xpmAttr;
 363     xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
 364
 365     Pixmap pixmap;
 366     Pixmap mask = 0;
 367
 368     int ErrorStatus = XpmCreatePixmapFromData( xdisplay, xroot, (char**) bits, &pixmap, &mask, &xpmAttr );
 369
 370     if (ErrorStatus == XpmSuccess)
 371     {
 372         M_BMPDATA->m_width = xpmAttr.width;
 373         M_BMPDATA->m_height = xpmAttr.height;
 374
 375         M_BMPDATA->m_bpp = bpp;  // mono as well?
 376
 377 #if __WXDEBUG__
 378         unsigned int depthRet;
 379         int xRet, yRet;
 380         unsigned int widthRet, heightRet, borderWidthRet;
 381         XGetGeometry( xdisplay, pixmap, &xroot, &xRet, &yRet,
 382             &widthRet, &heightRet, &borderWidthRet, &depthRet);
 383
 384         wxASSERT_MSG( bpp == (int)depthRet, wxT("colour depth mismatch") )
 385 #endif
 386
 387         XpmFreeAttributes(&xpmAttr);
 388
 389         M_BMPDATA->m_pixmap = (WXPixmap) pixmap;
 390
 391         if (mask)
 392         {
 393             M_BMPDATA->m_mask = new wxMask;
 394             M_BMPDATA->m_mask->SetBitmap( (WXPixmap) mask );
 395             M_BMPDATA->m_mask->SetDisplay( xdisplay );
 396         }
 397         return TRUE;
 398     }
 399     else
 400     {
 401         UnRef();
 402
 403         return FALSE;
 404     }
 405 #else
 406     wxXPMDecoder decoder;
 407     wxImage image(decoder.ReadData(bits));
 408     if (image.Ok())
 409         return CreateFromImage(image);
 410     else
 411         return FALSE;
 412 #endif
 413 #endif
 414     return FALSE;
 415 }
 416
 417 bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
 418 {
 419 #if wxUSE_NANOX
 420     if (!image.Ok())
 421     {
 422         wxASSERT_MSG(image.Ok(), "Invalid wxImage passed to wxBitmap::CreateFromImage.");
 423         return FALSE;
 424     }
 425
 426     int w = image.GetWidth();
 427     int h = image.GetHeight();
 428
 429     if (!Create(w, h, depth))
 430         return FALSE;
 431
 432     // Unfortunately the mask has to be screen-depth since
 433     // 1-bpp bitmaps don't seem to be supported
 434     // TODO: implement transparent drawing, presumably
 435     // by doing several blits as per the Windows
 436     // implementation because Nano-X doesn't support
 437     // XSetClipMask.
 438
 439     bool hasMask = image.HasMask();
 440
 441     GC pixmapGC = GrNewGC();
 442     Pixmap pixmap = (Pixmap) GetPixmap();
 443
 444     GC maskGC = 0;
 445     Pixmap maskPixmap = 0;
 446
 447     unsigned char maskR = 0;
 448     unsigned char maskG = 0;
 449     unsigned char maskB = 0;
 450
 451     if (hasMask)
 452     {
 453         maskR = image.GetMaskRed();
 454         maskG = image.GetMaskGreen();
 455         maskB = image.GetMaskBlue();
 456
 457         maskGC = GrNewGC();
 458         maskPixmap = GrNewPixmap(w, h, 0);
 459         if (!maskPixmap)
 460             hasMask = FALSE;
 461         else
 462         {
 463             wxMask* mask = new wxMask;
 464             mask->SetBitmap((WXPixmap) maskPixmap);
 465             SetMask(mask);
 466         }
 467     }
 468
 469     GR_COLOR lastPixmapColour = 0;
 470     GR_COLOR lastMaskColour = 0;
 471
 472     int i, j;
 473     for (i = 0; i < w; i++)
 474     {
 475         for (j = 0; j < h; j++)
 476         {
 477             unsigned char red = image.GetRed(i, j);
 478             unsigned char green = image.GetGreen(i, j);
 479             unsigned char blue = image.GetBlue(i, j);
 480
 481             GR_COLOR colour = GR_RGB(red, green, blue);
 482
 483             // Efficiency measure
 484             if (colour != lastPixmapColour || (i == 0 && j == 0))
 485             {
 486                 GrSetGCForeground(pixmapGC, colour);
 487                 lastPixmapColour = colour;
 488             }
 489
 490             GrPoint(pixmap, pixmapGC, i, j);
 491
 492             if (hasMask)
 493             {
 494                 // scan the bitmap for the transparent colour and set the corresponding
 495                 // pixels in the mask to BLACK and the rest to WHITE
 496                 if (maskR == red && maskG == green && maskB == blue)
 497                 {
 498                     colour = GR_RGB(0, 0, 0);
 499                 }
 500                 else
 501                 {
 502                     colour = GR_RGB(255, 255, 255);
 503                 }
 504                 if (colour != lastMaskColour || (i == 0 && j == 0))
 505                 {
 506                     GrSetGCForeground(maskGC, colour);
 507                     lastMaskColour = colour;
 508                 }
 509                 GrPoint(maskPixmap, maskGC, i, j);
 510             }
 511         }
 512     }
 513
 514     GrDestroyGC(pixmapGC);
 515     if (hasMask)
 516         GrDestroyGC(maskGC);
 517
 518     return TRUE;
 519 #else
 520     // !wxUSE_NANOX
 521
 522     UnRef();
 523
 524     wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") )
 525     wxCHECK_MSG( depth == -1, FALSE, wxT("invalid bitmap depth") )
 526
 527     m_refData = new wxBitmapRefData();
 528
 529     M_BMPDATA->m_display = wxGlobalDisplay();
 530
 531     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 532
 533     int xscreen = DefaultScreen( xdisplay );
 534     Window xroot = RootWindow( xdisplay, xscreen );
 535     Visual* xvisual = DefaultVisual( xdisplay, xscreen );
 536
 537     int bpp = DefaultDepth( xdisplay, xscreen );
 538
 539     int width = image.GetWidth();
 540     int height = image.GetHeight();
 541     M_BMPDATA->m_width = width;
 542     M_BMPDATA->m_height = height;
 543
 544     if (depth != 1) depth = bpp;
 545     M_BMPDATA->m_bpp = depth;
 546
 547     if (depth == 1)
 548     {
 549         wxFAIL_MSG( "mono images later" );
 550     }
 551     else
 552     {
 553         // Create image
 554
 555         XImage *data_image = XCreateImage( xdisplay, xvisual, bpp, ZPixmap, 0, 0, width, height, 32, 0 );
 556         data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height );
 557
 558         if (data_image->data == NULL)
 559         {
 560             wxLogError( wxT("Out of memory.") );  // TODO clean
 561             return FALSE;
 562         }
 563
 564         M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, depth );
 565
 566         // Create mask
 567
 568         XImage *mask_image = (XImage*) NULL;
 569         if (image.HasMask())
 570         {
 571             mask_image = XCreateImage( xdisplay, xvisual, 1, ZPixmap, 0, 0, width, height, 32, 0 );
 572             mask_image->data = (char*) malloc( mask_image->bytes_per_line * mask_image->height );
 573
 574             if (mask_image->data == NULL)
 575             {
 576                 wxLogError( wxT("Out of memory.") ); // TODO clean
 577                 return FALSE;
 578             }
 579
 580             wxMask *mask = new wxMask();
 581             mask->SetDisplay( xdisplay );
 582             mask->SetBitmap( (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, 1 ) );
 583
 584             SetMask( mask );
 585         }
 586
 587         // Retrieve info
 588
 589         XVisualInfo vinfo_template;
 590         XVisualInfo *vi;
 591
 592         vinfo_template.visual = xvisual;
 593         vinfo_template.visualid = XVisualIDFromVisual( xvisual );
 594         vinfo_template.depth = bpp;
 595         int nitem = 0;
 596
 597         vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
 598         wxASSERT_MSG( vi, wxT("No visual info") );
 599
 600         if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15;
 601         if (bpp < 8) bpp = 8;
 602
 603         // Render
 604
 605         enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
 606         byte_order b_o = RGB;
 607
 608         if (bpp > 8)
 609         {
 610             if ((vi->red_mask > vi->green_mask) && (vi->green_mask > vi->blue_mask))      b_o = RGB;
 611             else if ((vi->red_mask > vi->blue_mask) && (vi->blue_mask > vi->green_mask))  b_o = RBG;
 612             else if ((vi->blue_mask > vi->red_mask) && (vi->red_mask > vi->green_mask))   b_o = BRG;
 613             else if ((vi->blue_mask > vi->green_mask) && (vi->green_mask > vi->red_mask)) b_o = BGR;
 614             else if ((vi->green_mask > vi->red_mask) && (vi->red_mask > vi->blue_mask))   b_o = GRB;
 615             else if ((vi->green_mask > vi->blue_mask) && (vi->blue_mask > vi->red_mask))  b_o = GBR;
 616         }
 617
 618         XFree( vi );
 619
 620         int r_mask = image.GetMaskRed();
 621         int g_mask = image.GetMaskGreen();
 622         int b_mask = image.GetMaskBlue();
 623
 624         unsigned char* data = image.GetData();
 625         wxASSERT_MSG( data, "No image data" );
 626
 627         bool hasMask = image.HasMask();
 628
 629         int index = 0;
 630         for (int y = 0; y < height; y++)
 631         {
 632             for (int x = 0; x < width; x++)
 633             {
 634                 int r = data[index];
 635                 index++;
 636                 int g = data[index];
 637                 index++;
 638                 int b = data[index];
 639                 index++;
 640
 641                 if (hasMask)
 642                 {
 643                     if ((r == r_mask) && (b == b_mask) && (g == g_mask))
 644                         XPutPixel( mask_image, x, y, 0 );
 645                     else
 646                         XPutPixel( mask_image, x, y, 1 );
 647                 }
 648
 649                 switch (bpp)
 650                 {
 651                     case 8:
 652                     {
 653                         int pixel = 0;
 654 #if 0
 655                         if (wxTheApp->m_colorCube)
 656                         {
 657                             pixel = wxTheApp->m_colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
 658                         }
 659                         else
 660                         {
 661                             GdkColormap *cmap = gtk_widget_get_default_colormap();
 662                             GdkColor *colors = cmap->colors;
 663                             int max = 3 * (65536);
 664
 665                             for (int i = 0; i < cmap->size; i++)
 666                             {
 667                                 int rdiff = (r << 8) - colors[i].red;
 668                                 int gdiff = (g << 8) - colors[i].green;
 669                                 int bdiff = (b << 8) - colors[i].blue;
 670                                 int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
 671                                 if (sum < max) { pixel = i; max = sum; }
 672                             }
 673                         }
 674 #endif
 675                         XPutPixel( data_image, x, y, pixel );
 676                         break;
 677                     }
 678                     case 12:  // SGI only
 679                     {
 680                         int pixel = 0;
 681                         switch (b_o)
 682                         {
 683                             case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break;
 684                             case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break;
 685                             case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break;
 686                             case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break;
 687                             case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break;
 688                             case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break;
 689                         }
 690                         XPutPixel( data_image, x, y, pixel );
 691                         break;
 692                     }
 693                     case 15:
 694                     {
 695                         int pixel = 0;
 696                         switch (b_o)
 697                         {
 698                             case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 699                             case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 700                             case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 701                             case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 702                             case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 703                             case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 704                         }
 705                         XPutPixel( data_image, x, y, pixel );
 706                         break;
 707                     }
 708                     case 16:
 709                     {
 710                         // I actually don't know if for 16-bit displays, it is alway the green
 711                         // component or the second component which has 6 bits.
 712                         int pixel = 0;
 713                         switch (b_o)
 714                         {
 715                             case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 716                             case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 717                             case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 718                             case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 719                             case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 720                             case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 721                         }
 722                         XPutPixel( data_image, x, y, pixel );
 723                         break;
 724                     }
 725                     case 32:
 726                     case 24:
 727                     {
 728                         int pixel = 0;
 729                         switch (b_o)
 730                         {
 731                             case RGB: pixel = (r << 16) | (g << 8) | b; break;
 732                             case RBG: pixel = (r << 16) | (b << 8) | g; break;
 733                             case BRG: pixel = (b << 16) | (r << 8) | g; break;
 734                             case BGR: pixel = (b << 16) | (g << 8) | r; break;
 735                             case GRB: pixel = (g << 16) | (r << 8) | b; break;
 736                             case GBR: pixel = (g << 16) | (b << 8) | r; break;
 737                         }
 738                         XPutPixel( data_image, x, y, pixel );
 739                     }
 740                     default: break;
 741                 }
 742             } // for
 743         }  // for
 744
 745         // Blit picture
 746
 747         GC gc = XCreateGC( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, 0, NULL );
 748         XPutImage( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, gc, data_image, 0, 0, 0, 0, width, height );
 749 #ifdef __WXDEBUG__
 750         XSync(wxGlobalDisplay(), False);
 751 #endif
 752
 753         XDestroyImage( data_image );
 754         XFreeGC( xdisplay, gc );
 755
 756         // Blit mask
 757
 758         if (image.HasMask())
 759         {
 760             GC gc = XCreateGC( xdisplay, (Pixmap) GetMask()->GetBitmap(), 0, NULL );
 761             XPutImage( xdisplay, (Pixmap) GetMask()->GetBitmap(), gc, mask_image, 0, 0, 0, 0, width, height );
 762
 763             XDestroyImage( mask_image );
 764             XFreeGC( xdisplay, gc );
 765         }
 766     }
 767
 768     return TRUE;
 769 #endif
 770     // wxUSE_NANOX
 771 }
 772
 773 static void wxCalcPrecAndShift( unsigned long mask, int *shift, int *prec )
 774 {
 775   *shift = 0;
 776   *prec = 0;
 777
 778   while (!(mask & 0x1))
 779     {
 780       (*shift)++;
 781       mask >>= 1;
 782     }
 783
 784   while (mask & 0x1)
 785     {
 786       (*prec)++;
 787       mask >>= 1;
 788     }
 789 }
 790
 791 wxImage wxBitmap::ConvertToImage() const
 792 {
 793     wxImage image;
 794
 795     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
 796
 797     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 798     wxASSERT_MSG( xdisplay, wxT("No display") );
 799
 800     int xscreen = DefaultScreen( xdisplay );
 801     Visual* xvisual = DefaultVisual( xdisplay, xscreen );
 802
 803     int bpp = DefaultDepth( xdisplay, xscreen );
 804
 805 #if wxUSE_NANOX
 806     int w = image.GetWidth();
 807     int h = image.GetHeight();
 808
 809     wxMemoryDC memDC;
 810     memDC.SelectObject(*this);
 811
 812     wxColour pixelCol;
 813
 814     // Warning: this is very inefficient.
 815     // TODO: use GrReadArea to get an array of pixels
 816     int i, j;
 817     for (i = 0; i < w; i++)
 818     {
 819         for (j = 0; j < h; j++)
 820         {
 821             memDC.GetPixel(i, j, & pixelCol);
 822
 823             // TODO: make wxColour accessors more efficient
 824             // by inlining, if possible
 825             image.SetRGB(i, j,
 826                          pixelCol.Red(), pixelCol.Green(),
 827                          pixelCol.Blue());
 828         }
 829     }
 830     memDC.SelectObject(wxNullBitmap);
 831
 832     return image;
 833
 834 #else
 835     // !wxUSE_NANOX
 836     XImage *x_image = NULL;
 837     if (GetPixmap())
 838     {
 839         x_image = XGetImage( xdisplay, (Pixmap) GetPixmap(),
 840             0, 0,
 841             GetWidth(), GetHeight(),
 842             AllPlanes, ZPixmap );
 843     } else
 844     if (GetBitmap())
 845     {
 846         x_image = XGetImage( xdisplay, (Pixmap) GetBitmap(),
 847             0, 0,
 848             GetWidth(), GetHeight(),
 849             AllPlanes, ZPixmap );
 850     } else
 851     {
 852         wxFAIL_MSG( wxT("Ill-formed bitmap") );
 853     }
 854
 855     wxCHECK_MSG( x_image, wxNullImage, wxT("couldn't create image") );
 856
 857     image.Create( GetWidth(), GetHeight() );
 858     char unsigned *data = image.GetData();
 859
 860     if (!data)
 861     {
 862         XDestroyImage( x_image );
 863         wxFAIL_MSG( wxT("couldn't create image") );
 864         return wxNullImage;
 865     }
 866
 867     XImage *x_image_mask = NULL;
 868     if (GetMask())
 869     {
 870         x_image_mask = XGetImage( xdisplay, (Pixmap) GetMask()->GetBitmap(),
 871             0, 0,
 872             GetWidth(), GetHeight(),
 873             AllPlanes, ZPixmap );
 874
 875         image.SetMaskColour( 16, 16, 16 );  // anything unlikely and dividable
 876     }
 877
 878     int red_shift_right = 0;
 879     int green_shift_right = 0;
 880     int blue_shift_right = 0;
 881     int red_shift_left = 0;
 882     int green_shift_left = 0;
 883     int blue_shift_left = 0;
 884     bool use_shift = FALSE;
 885
 886     if (GetPixmap())
 887     {
 888         // Retrieve info
 889
 890         XVisualInfo vinfo_template;
 891         XVisualInfo *vi;
 892
 893         vinfo_template.visual = xvisual;
 894         vinfo_template.visualid = XVisualIDFromVisual( xvisual );
 895         vinfo_template.depth = bpp;
 896         int nitem = 0;
 897
 898         vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
 899         wxASSERT_MSG( vi, wxT("No visual info") );
 900
 901         int red_prec,green_prec,blue_prec;
 902         int red_shift,green_shift,blue_shift;
 903         wxCalcPrecAndShift( vi->red_mask, &red_shift, &red_prec );
 904         wxCalcPrecAndShift( vi->green_mask, &green_shift, &green_prec );
 905         wxCalcPrecAndShift( vi->blue_mask, &blue_shift, &blue_prec );
 906         if (bpp == 16) bpp = red_prec + green_prec + blue_prec;
 907
 908         red_shift_right = red_shift;
 909         red_shift_left = 8-red_prec;
 910         green_shift_right = green_shift;
 911         green_shift_left = 8-green_prec;
 912         blue_shift_right = blue_shift;
 913         blue_shift_left = 8-blue_prec;
 914
 915 #if 0
 916         use_shift = (vi->visual->c_class == TrueColor) || (vi->visual->c_class == DirectColor);
 917 #else
 918         use_shift = TRUE;
 919 #endif
 920
 921         XFree( vi );
 922     }
 923     if (GetBitmap())
 924     {
 925         bpp = 1;
 926     }
 927
 928
 929 //    GdkColormap *cmap = gtk_widget_get_default_colormap();
 930
 931     long pos = 0;
 932     for (int j = 0; j < GetHeight(); j++)
 933     {
 934         for (int i = 0; i < GetWidth(); i++)
 935         {
 936             unsigned long pixel = XGetPixel( x_image, i, j );
 937             if (bpp == 1)
 938             {
 939                 if (pixel == 0)
 940                 {
 941                     data[pos]   = 0;
 942                     data[pos+1] = 0;
 943                     data[pos+2] = 0;
 944                 }
 945                 else
 946                 {
 947                     data[pos]   = 255;
 948                     data[pos+1] = 255;
 949                     data[pos+2] = 255;
 950                 }
 951             }
 952             else if (use_shift)
 953             {
 954                 data[pos] =   (pixel >> red_shift_right)   << red_shift_left;
 955                 data[pos+1] = (pixel >> green_shift_right) << green_shift_left;
 956                 data[pos+2] = (pixel >> blue_shift_right)  << blue_shift_left;
 957             }
 958 #if 0
 959             else if (cmap->colors)
 960             {
 961                 data[pos] =   cmap->colors[pixel].red   >> 8;
 962                 data[pos+1] = cmap->colors[pixel].green >> 8;
 963                 data[pos+2] = cmap->colors[pixel].blue  >> 8;
 964             }
 965 #endif
 966             else
 967             {
 968                 wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
 969             }
 970
 971             if (x_image_mask)
 972             {
 973                 int mask_pixel = XGetPixel( x_image_mask, i, j );
 974                 if (mask_pixel == 0)
 975                 {
 976                     data[pos] = 16;
 977                     data[pos+1] = 16;
 978                     data[pos+2] = 16;
 979                 }
 980             }
 981
 982             pos += 3;
 983         }
 984     }
 985
 986     XDestroyImage( x_image );
 987     if (x_image_mask) XDestroyImage( x_image_mask );
 988     return image;
 989 #endif
 990     // wxUSE_NANOX
 991 }
 992
 993 wxBitmap::wxBitmap( const wxBitmap& bmp )
 994 {
 995     Ref( bmp );
 996 }
 997
 998 wxBitmap::wxBitmap( const wxString &filename, int type )
 999 {
1000     LoadFile( filename, type );
1001 }
1002
1003 wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth) )
1004 {
1005 #if !wxUSE_NANOX
1006     m_refData = new wxBitmapRefData();
1007
1008     M_BMPDATA->m_display = wxGlobalDisplay();
1009
1010     Display *xdisplay = (Display*) M_BMPDATA->m_display;
1011
1012     int xscreen = DefaultScreen( xdisplay );
1013     Window xroot = RootWindow( xdisplay, xscreen );
1014
1015     M_BMPDATA->m_mask = (wxMask *) NULL;
1016     M_BMPDATA->m_bitmap = (WXPixmap) XCreateBitmapFromData( xdisplay, xroot, (char *) bits, width, height );
1017     M_BMPDATA->m_width = width;
1018     M_BMPDATA->m_height = height;
1019     M_BMPDATA->m_bpp = 1;
1020 #endif
1021     wxCHECK_RET( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
1022 }
1023
1024 wxBitmap::~wxBitmap()
1025 {
1026 }
1027
1028 wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
1029 {
1030     if ( m_refData != bmp.m_refData )
1031         Ref( bmp );
1032
1033     return *this;
1034 }
1035
1036 bool wxBitmap::operator == ( const wxBitmap& bmp ) const
1037 {
1038     return m_refData == bmp.m_refData;
1039 }
1040
1041 bool wxBitmap::operator != ( const wxBitmap& bmp ) const
1042 {
1043     return m_refData != bmp.m_refData;
1044 }
1045
1046 bool wxBitmap::Ok() const
1047 {
1048     return (m_refData != NULL);
1049 }
1050
1051 int wxBitmap::GetHeight() const
1052 {
1053     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1054
1055     return M_BMPDATA->m_height;
1056 }
1057
1058 int wxBitmap::GetWidth() const
1059 {
1060     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1061
1062     return M_BMPDATA->m_width;
1063 }
1064
1065 int wxBitmap::GetDepth() const
1066 {
1067     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1068
1069     return M_BMPDATA->m_bpp;
1070 }
1071
1072 wxMask *wxBitmap::GetMask() const
1073 {
1074     wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
1075
1076     return M_BMPDATA->m_mask;
1077 }
1078
1079 void wxBitmap::SetMask( wxMask *mask )
1080 {
1081     wxCHECK_RET( Ok(), wxT("invalid bitmap") );
1082
1083     if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
1084
1085     M_BMPDATA->m_mask = mask;
1086 }
1087
1088 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
1089 {
1090     *this = icon;
1091     return TRUE;
1092 }
1093
1094 wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
1095 {
1096     wxCHECK_MSG( Ok() &&
1097                  (rect.x >= 0) && (rect.y >= 0) &&
1098                  (rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
1099                  wxNullBitmap, wxT("invalid bitmap or bitmap region") );
1100
1101     wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
1102     wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
1103
1104
1105     wxFAIL_MSG( "wxBitmap::GetSubBitmap not yet implemented" );
1106
1107 #if 0
1108     if (ret.GetPixmap())
1109     {
1110         GdkGC *gc = gdk_gc_new( ret.GetPixmap() );
1111         gdk_draw_pixmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
1112         gdk_gc_destroy( gc );
1113     }
1114     else
1115     {
1116         GdkGC *gc = gdk_gc_new( ret.GetBitmap() );
1117         gdk_wx_draw_bitmap( ret.GetBitmap(), gc, GetBitmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
1118         gdk_gc_destroy( gc );
1119     }
1120
1121     if (GetMask())
1122     {
1123         wxMask *mask = new wxMask;
1124         mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, rect.width, rect.height, 1 );
1125
1126         GdkGC *gc = gdk_gc_new( mask->m_bitmap );
1127         gdk_wx_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, 0, 0, rect.x, rect.y, rect.width, rect.height );
1128         gdk_gc_destroy( gc );
1129
1130         ret.SetMask( mask );
1131     }
1132 #endif
1133
1134     return ret;
1135 }
1136
1137 bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
1138 {
1139     wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") );
1140
1141     // Try to save the bitmap via wxImage handlers:
1142     {
1143         wxImage image( *this );
1144         if (image.Ok()) return image.SaveFile( name, type );
1145     }
1146
1147     return FALSE;
1148 }
1149
1150 bool wxBitmap::LoadFile( const wxString &name, int type )
1151 {
1152     UnRef();
1153
1154     if (!wxFileExists(name)) return FALSE;
1155
1156
1157     if (type == wxBITMAP_TYPE_XPM)
1158     {
1159 #if wxUSE_XPM
1160 #if wxHAVE_LIB_XPM
1161         m_refData = new wxBitmapRefData();
1162
1163         M_BMPDATA->m_display = wxGlobalDisplay();
1164
1165         Display *xdisplay = (Display*) M_BMPDATA->m_display;
1166
1167         int xscreen = DefaultScreen( xdisplay );
1168         Window xroot = RootWindow( xdisplay, xscreen );
1169
1170         int bpp = DefaultDepth( xdisplay, xscreen );
1171
1172         XpmAttributes xpmAttr;
1173         xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
1174
1175         Pixmap pixmap;
1176         Pixmap mask = 0;
1177
1178         int ErrorStatus = XpmReadFileToPixmap( xdisplay, xroot, (char*) name.c_str(), &pixmap, &mask, &xpmAttr);
1179
1180         if (ErrorStatus == XpmSuccess)
1181         {
1182             M_BMPDATA->m_width = xpmAttr.width;
1183             M_BMPDATA->m_height = xpmAttr.height;
1184
1185             M_BMPDATA->m_bpp = bpp;  // mono as well?
1186
1187             XpmFreeAttributes(&xpmAttr);
1188
1189             M_BMPDATA->m_bitmap = (WXPixmap) pixmap;
1190
1191             if (mask)
1192             {
1193                 M_BMPDATA->m_mask = new wxMask;
1194                 M_BMPDATA->m_mask->SetBitmap( (WXPixmap) mask );
1195                 M_BMPDATA->m_mask->SetDisplay( xdisplay );
1196             }
1197         }
1198         else
1199         {
1200             UnRef();
1201
1202             return FALSE;
1203         }
1204 #else
1205 #if wxUSE_STREAMS
1206         wxXPMDecoder decoder;
1207         wxFileInputStream stream(name);
1208         if (stream.Ok())
1209         {
1210             wxImage image(decoder.ReadFile(stream));
1211             if (image.Ok())
1212                 return CreateFromImage(image);
1213             else
1214                 return FALSE;
1215         }
1216         else
1217             return FALSE;
1218 #else
1219         return FALSE;
1220 #endif
1221         // wxUSE_STREAMS
1222 #endif
1223         // wxHAVE_LIB_XPM
1224 #endif
1225         // wxUSE_XPM
1226         return FALSE;
1227     }
1228     else // try if wxImage can load it
1229     {
1230         wxImage image;
1231         if (!image.LoadFile( name, type )) return FALSE;
1232         if (image.Ok()) *this = image.ConvertToBitmap();
1233         else return FALSE;
1234     }
1235
1236     return TRUE;
1237 }
1238
1239 wxPalette *wxBitmap::GetPalette() const
1240 {
1241     if (!Ok()) return (wxPalette *) NULL;
1242
1243     return M_BMPDATA->m_palette;
1244 }
1245
1246 void wxBitmap::SetHeight( int height )
1247 {
1248     if (!m_refData) m_refData = new wxBitmapRefData();
1249
1250     M_BMPDATA->m_height = height;
1251 }
1252
1253 void wxBitmap::SetWidth( int width )
1254 {
1255     if (!m_refData) m_refData = new wxBitmapRefData();
1256
1257     M_BMPDATA->m_width = width;
1258 }
1259
1260 void wxBitmap::SetDepth( int depth )
1261 {
1262     if (!m_refData) m_refData = new wxBitmapRefData();
1263
1264     M_BMPDATA->m_bpp = depth;
1265 }
1266
1267 void wxBitmap::SetPixmap( WXPixmap pixmap )
1268 {
1269     if (!m_refData) m_refData = new wxBitmapRefData();
1270
1271     M_BMPDATA->m_pixmap = pixmap;
1272 }
1273
1274 void wxBitmap::SetBitmap( WXPixmap bitmap )
1275 {
1276     if (!m_refData) m_refData = new wxBitmapRefData();
1277
1278     M_BMPDATA->m_bitmap = bitmap;
1279 }
1280
1281 WXPixmap wxBitmap::GetPixmap() const
1282 {
1283     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1284
1285     return M_BMPDATA->m_pixmap;
1286 }
1287
1288 WXPixmap wxBitmap::GetBitmap() const
1289 {
1290     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1291
1292     return M_BMPDATA->m_bitmap;
1293 }
1294
1295 WXDisplay *wxBitmap::GetDisplay() const
1296 {
1297     wxCHECK_MSG( Ok(), (WXDisplay*) NULL, wxT("invalid bitmap") );
1298
1299     return M_BMPDATA->m_display;
1300 }
1301
1302 #if wxUSE_NANOX
1303 // Copy from the drawable to the wxImage
1304 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image)
1305 {
1306         GR_SCREEN_INFO sinfo;
1307     int x, y;
1308     GR_PIXELVAL *pixels;
1309     GR_PIXELVAL pixel;
1310     GR_COLOR colour;
1311     GR_PALETTE* palette = NULL;
1312
1313         GrGetScreenInfo(&sinfo);
1314
1315         if (sinfo.pixtype == MWPF_PALETTE) {
1316                 if(!(palette = malloc(sizeof(GR_PALETTE)))) {
1317                         return FALSE;
1318                 }
1319                 GrGetSystemPalette(palette);
1320         }
1321
1322         if(!(pixels = (GR_PIXELVAL*) malloc(sizeof(GR_PIXELVAL) * width * height)))
1323     {
1324         return FALSE;
1325     }
1326
1327     if (!image.Create(width, height))
1328     {
1329         free(pixels);
1330         return FALSE;
1331     }
1332
1333         GrReadArea(drawable, srcX, srcY, width, height,
1334                                                 pixels);
1335
1336
1337                 for(x = 0; x < sinfo.cols; x++) {
1338
1339                         pp = (unsigned char *)pixels +
1340                                 ((x + (y * sinfo.cols)) *
1341                                 sizeof(GR_PIXELVAL));
1342
1343                         switch(sinfo.pixtype) {
1344                         /* FIXME: These may need modifying on big endian. */
1345                                 case MWPF_TRUECOLOR0888:
1346                                 case MWPF_TRUECOLOR888:
1347                                         rgb[0] = pp[2];
1348                                         rgb[1] = pp[1];
1349                                         rgb[2] = pp[0];
1350                                         break;
1351                                 case MWPF_PALETTE:
1352                                         rgb[0] = palette->palette[pp[0]].r;
1353                                         rgb[1] = palette->palette[pp[0]].g;
1354                                         rgb[2] = palette->palette[pp[0]].b;
1355                                         break;
1356                                 case MWPF_TRUECOLOR565:
1357                                         rgb[0] = pp[1] & 0xf8;
1358                                         rgb[1] = ((pp[1] & 0x07) << 5) |
1359                                                 ((pp[0] & 0xe0) >> 3);
1360                                         rgb[2] = (pp[0] & 0x1f) << 3;
1361                                         break;
1362                                 case MWPF_TRUECOLOR555:
1363                                         rgb[0] = (pp[1] & 0x7c) << 1;
1364                                         rgb[1] = ((pp[1] & 0x03) << 6) |
1365                                                 ((pp[0] & 0xe0) >> 2);
1366                                         rgb[2] = (pp[0] & 0x1f) << 3;
1367                                         break;
1368                                 case MWPF_TRUECOLOR332:
1369                                         rgb[0] = pp[0] & 0xe0;
1370                                         rgb[1] = (pp[0] & 0x1c) << 3;
1371                                         rgb[2] = (pp[0] & 0x03) << 6;
1372                                         break;
1373                                 default:
1374                                         fprintf(stderr, "Unsupported pixel "
1375                                                         "format\n");
1376                                         return 1;
1377                         }
1378
1379             image.SetRGB(x, y, rgb[0], rgb[1], rgb[2]);
1380
1381                 }
1382         }
1383
1384     free(pixels);
1385         if(palette) free(palette);
1386
1387     return TRUE;
1388 }
1389
1390 #if 0
1391 int GrGetPixelColor(GR_SCREEN_INFO* sinfo, GR_PALETTE* palette, GR_PIXELVAL pixel,
1392     unsigned char* red, unsigned char* green, unsigned char* blue)
1393 {
1394         unsigned char rgb[3], *pp;
1395
1396     pp = (unsigned char*) & pixel ;
1397
1398     switch (sinfo.pixtype)
1399     {
1400                         /* FIXME: These may need modifying on big endian. */
1401                                 case MWPF_TRUECOLOR0888:
1402                                 case MWPF_TRUECOLOR888:
1403                                         rgb[0] = pp[2];
1404                                         rgb[1] = pp[1];
1405                                         rgb[2] = pp[0];
1406                                         break;
1407                                 case MWPF_PALETTE:
1408                                         rgb[0] = palette->palette[pp[0]].r;
1409                                         rgb[1] = palette->palette[pp[0]].g;
1410                                         rgb[2] = palette->palette[pp[0]].b;
1411                                         break;
1412                                 case MWPF_TRUECOLOR565:
1413                                         rgb[0] = pp[1] & 0xf8;
1414                                         rgb[1] = ((pp[1] & 0x07) << 5) |
1415                                                 ((pp[0] & 0xe0) >> 3);
1416                                         rgb[2] = (pp[0] & 0x1f) << 3;
1417                                         break;
1418                                 case MWPF_TRUECOLOR555:
1419                                         rgb[0] = (pp[1] & 0x7c) << 1;
1420                                         rgb[1] = ((pp[1] & 0x03) << 6) |
1421                                                 ((pp[0] & 0xe0) >> 2);
1422                                         rgb[2] = (pp[0] & 0x1f) << 3;
1423                                         break;
1424                                 case MWPF_TRUECOLOR332:
1425                                         rgb[0] = pp[0] & 0xe0;
1426                                         rgb[1] = (pp[0] & 0x1c) << 3;
1427                                         rgb[2] = (pp[0] & 0x03) << 6;
1428                                         break;
1429                                 default:
1430                                         fprintf(stderr, "Unsupported pixel format\n");
1431                                         return 0;
1432         }
1433
1434
1435     *(red) = rgb[0];
1436     *(green) = rgb[1];
1437     *(blue) = rgb[2];
1438     return 1;
1439 }
1440 #endif
1441 #endif
1442   // wxUSE_NANOX
1443