git.oblomov.eu Git - wine/blob - dlls/gdi32/dibdrv/dc.c

   1 /*
   2  * DIB driver initialization and DC functions.
   3  *
   4  * Copyright 2011 Huw Davies
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <assert.h>
  22
  23 #include "gdi_private.h"
  24 #include "dibdrv.h"
  25
  26 #include "wine/debug.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(dib);
  29
  30 static void calc_shift_and_len(DWORD mask, int *shift, int *len)
  31 {
  32     int s, l;
  33
  34     if(!mask)
  35     {
  36         *shift = *len = 0;
  37         return;
  38     }
  39
  40     s = 0;
  41     while ((mask & 1) == 0)
  42     {
  43         mask >>= 1;
  44         s++;
  45     }
  46     l = 0;
  47     while ((mask & 1) == 1)
  48     {
  49         mask >>= 1;
  50         l++;
  51     }
  52     *shift = s;
  53     *len = l;
  54 }
  55
  56 static void init_bit_fields(dib_info *dib, const DWORD *bit_fields)
  57 {
  58     dib->red_mask    = bit_fields[0];
  59     dib->green_mask  = bit_fields[1];
  60     dib->blue_mask   = bit_fields[2];
  61     calc_shift_and_len(dib->red_mask,   &dib->red_shift,   &dib->red_len);
  62     calc_shift_and_len(dib->green_mask, &dib->green_shift, &dib->green_len);
  63     calc_shift_and_len(dib->blue_mask,  &dib->blue_shift,  &dib->blue_len);
  64 }
  65
  66 static BOOL init_dib_info(dib_info *dib, const BITMAPINFOHEADER *bi, const DWORD *bit_fields,
  67                           RGBQUAD *color_table, int color_table_size, void *bits, enum dib_info_flags flags)
  68 {
  69     static const DWORD bit_fields_888[3] = {0xff0000, 0x00ff00, 0x0000ff};
  70     static const DWORD bit_fields_555[3] = {0x7c00, 0x03e0, 0x001f};
  71
  72     dib->bit_count = bi->biBitCount;
  73     dib->width     = bi->biWidth;
  74     dib->height    = bi->biHeight;
  75     dib->stride    = ((dib->width * dib->bit_count + 31) >> 3) & ~3;
  76     dib->bits      = bits;
  77     dib->ptr_to_free = NULL;
  78     dib->flags     = flags;
  79
  80     if(dib->height < 0) /* top-down */
  81     {
  82         dib->height = -dib->height;
  83     }
  84     else /* bottom-up */
  85     {
  86         /* bits always points to the top-left corner and the stride is -ve */
  87         dib->bits    = (BYTE*)dib->bits + (dib->height - 1) * dib->stride;
  88         dib->stride  = -dib->stride;
  89     }
  90
  91     dib->funcs = &funcs_null;
  92
  93     switch(dib->bit_count)
  94     {
  95     case 32:
  96         if(bi->biCompression == BI_RGB)
  97             bit_fields = bit_fields_888;
  98
  99         init_bit_fields(dib, bit_fields);
 100
 101         if(dib->red_mask == 0xff0000 && dib->green_mask == 0x00ff00 && dib->blue_mask == 0x0000ff)
 102             dib->funcs = &funcs_8888;
 103         else
 104             dib->funcs = &funcs_32;
 105         break;
 106
 107     case 24:
 108         dib->funcs = &funcs_24;
 109         break;
 110
 111     case 16:
 112         if(bi->biCompression == BI_RGB)
 113             bit_fields = bit_fields_555;
 114
 115         init_bit_fields(dib, bit_fields);
 116
 117         if(dib->red_mask == 0x7c00 && dib->green_mask == 0x03e0 && dib->blue_mask == 0x001f)
 118             dib->funcs = &funcs_555;
 119         else
 120             dib->funcs = &funcs_16;
 121         break;
 122
 123     case 8:
 124         dib->funcs = &funcs_8;
 125         break;
 126
 127     case 4:
 128         dib->funcs = &funcs_4;
 129         break;
 130
 131     case 1:
 132         dib->funcs = &funcs_1;
 133         break;
 134
 135     default:
 136         TRACE("bpp %d not supported, will forward to graphics driver.\n", dib->bit_count);
 137         return FALSE;
 138     }
 139
 140     if(color_table)
 141     {
 142         if (flags & private_color_table)
 143         {
 144             dib->color_table = HeapAlloc(GetProcessHeap(), 0, color_table_size * sizeof(dib->color_table[0]));
 145             if(!dib->color_table) return FALSE;
 146             memcpy(dib->color_table, color_table, color_table_size * sizeof(color_table[0]));
 147         }
 148         else
 149             dib->color_table = color_table;
 150         dib->color_table_size = color_table_size;
 151     }
 152     else
 153     {
 154         dib->color_table = NULL;
 155         dib->color_table_size = 0;
 156     }
 157
 158     return TRUE;
 159 }
 160
 161 BOOL init_dib_info_from_packed(dib_info *dib, const BITMAPINFOHEADER *bi, WORD usage, HPALETTE palette)
 162 {
 163     DWORD *masks = NULL;
 164     RGBQUAD *color_table = NULL, pal_table[256];
 165     BYTE *ptr = (BYTE*)bi + bi->biSize;
 166     int num_colors = bi->biClrUsed;
 167
 168     if(bi->biCompression == BI_BITFIELDS)
 169     {
 170         masks = (DWORD *)ptr;
 171         ptr += 3 * sizeof(DWORD);
 172     }
 173
 174     if(!num_colors && bi->biBitCount <= 8) num_colors = 1 << bi->biBitCount;
 175     if(num_colors)
 176     {
 177         if(usage == DIB_PAL_COLORS)
 178         {
 179             PALETTEENTRY entries[256];
 180             const WORD *index = (const WORD*) ptr;
 181             UINT i, count = GetPaletteEntries( palette, 0, num_colors, entries );
 182             for (i = 0; i < num_colors; i++, index++)
 183             {
 184                 PALETTEENTRY *entry = &entries[*index % count];
 185                 pal_table[i].rgbRed      = entry->peRed;
 186                 pal_table[i].rgbGreen    = entry->peGreen;
 187                 pal_table[i].rgbBlue     = entry->peBlue;
 188                 pal_table[i].rgbReserved = 0;
 189             }
 190             color_table = pal_table;
 191             ptr += num_colors * sizeof(WORD);
 192         }
 193         else
 194         {
 195             color_table = (RGBQUAD*)ptr;
 196             ptr += num_colors * sizeof(*color_table);
 197         }
 198     }
 199
 200     return init_dib_info(dib, bi, masks, color_table, num_colors, ptr, private_color_table);
 201 }
 202
 203 static void clear_dib_info(dib_info *dib)
 204 {
 205     dib->color_table = NULL;
 206     dib->bits = NULL;
 207     dib->ptr_to_free = NULL;
 208 }
 209
 210 /**********************************************************************
 211  *      free_dib_info
 212  *
 213  * Free the resources associated with a dib and optionally the bits
 214  */
 215 void free_dib_info(dib_info *dib)
 216 {
 217     if (dib->flags & private_color_table)
 218         HeapFree(GetProcessHeap(), 0, dib->color_table);
 219     dib->color_table = NULL;
 220
 221     HeapFree(GetProcessHeap(), 0, dib->ptr_to_free);
 222     dib->ptr_to_free = NULL;
 223     dib->bits = NULL;
 224 }
 225
 226 void copy_dib_color_info(dib_info *dst, const dib_info *src)
 227 {
 228     dst->bit_count        = src->bit_count;
 229     dst->red_mask         = src->red_mask;
 230     dst->green_mask       = src->green_mask;
 231     dst->blue_mask        = src->blue_mask;
 232     dst->red_len          = src->red_len;
 233     dst->green_len        = src->green_len;
 234     dst->blue_len         = src->blue_len;
 235     dst->red_shift        = src->red_shift;
 236     dst->green_shift      = src->green_shift;
 237     dst->blue_shift       = src->blue_shift;
 238     dst->funcs            = src->funcs;
 239     dst->color_table_size = src->color_table_size;
 240     dst->color_table      = NULL;
 241     dst->flags            = src->flags;
 242     if(dst->color_table_size)
 243     {
 244         int size = dst->color_table_size * sizeof(dst->color_table[0]);
 245         if (dst->flags & private_color_table)
 246         {
 247             dst->color_table = HeapAlloc(GetProcessHeap(), 0, size);
 248             memcpy(dst->color_table, src->color_table, size);
 249         }
 250         else
 251             dst->color_table = src->color_table;
 252     }
 253 }
 254
 255 /**************************************************************
 256  *            convert_dib
 257  *
 258  * Converts src into the format specified in dst.
 259  *
 260  * FIXME: At the moment this always creates a top-down dib,
 261  * do we want to give the option of bottom-up?
 262  */
 263 BOOL convert_dib(dib_info *dst, const dib_info *src)
 264 {
 265     BOOL ret;
 266     RECT src_rect;
 267
 268     dst->height = src->height;
 269     dst->width = src->width;
 270     dst->stride = ((dst->width * dst->bit_count + 31) >> 3) & ~3;
 271     dst->ptr_to_free = dst->bits = HeapAlloc(GetProcessHeap(), 0, dst->height * dst->stride);
 272
 273     src_rect.left = src_rect.top = 0;
 274     src_rect.right = src->width;
 275     src_rect.bottom = src->height;
 276
 277     ret = dst->funcs->convert_to(dst, src, &src_rect);
 278
 279     if(!ret) free_dib_info(dst);
 280     return ret;
 281 }
 282
 283 static void update_fg_colors( dibdrv_physdev *pdev )
 284 {
 285     pdev->pen_color   = get_fg_color( pdev, pdev->pen_colorref );
 286     pdev->brush_color = get_fg_color( pdev, pdev->brush_colorref );
 287 }
 288
 289 static void update_masks( dibdrv_physdev *pdev, INT rop )
 290 {
 291     calc_and_xor_masks( rop, pdev->pen_color, &pdev->pen_and, &pdev->pen_xor );
 292     update_brush_rop( pdev, rop );
 293     if( GetBkMode( pdev->dev.hdc ) == OPAQUE )
 294         calc_and_xor_masks( rop, pdev->bkgnd_color, &pdev->bkgnd_and, &pdev->bkgnd_xor );
 295 }
 296
 297 /***********************************************************************
 298  *           dibdrv_DeleteDC
 299  */
 300 static BOOL dibdrv_DeleteDC( PHYSDEV dev )
 301 {
 302     dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
 303     TRACE("(%p)\n", dev);
 304     DeleteObject(pdev->clip);
 305     free_pattern_brush(pdev);
 306     free_dib_info(&pdev->dib);
 307     return 0;
 308 }
 309
 310 /***********************************************************************
 311  *           dibdrv_SelectBitmap
 312  */
 313 static HBITMAP dibdrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
 314 {
 315     PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSelectBitmap );
 316     dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
 317     BITMAPOBJ *bmp = GDI_GetObjPtr( bitmap, OBJ_BITMAP );
 318     TRACE("(%p, %p)\n", dev, bitmap);
 319
 320     if (!bmp) return 0;
 321     assert(bmp->dib);
 322
 323     pdev->clip = CreateRectRgn(0, 0, 0, 0);
 324     pdev->defer = 0;
 325
 326     clear_dib_info(&pdev->dib);
 327     clear_dib_info(&pdev->brush_dib);
 328     pdev->brush_and_bits = pdev->brush_xor_bits = NULL;
 329
 330     if(!init_dib_info(&pdev->dib, &bmp->dib->dsBmih, bmp->dib->dsBitfields,
 331                       bmp->color_table, bmp->nb_colors, bmp->dib->dsBm.bmBits, private_color_table))
 332         pdev->defer |= DEFER_FORMAT;
 333
 334     GDI_ReleaseObj( bitmap );
 335
 336     return next->funcs->pSelectBitmap( next, bitmap );
 337 }
 338
 339 /***********************************************************************
 340  *           dibdrv_SetBkColor
 341  */
 342 static COLORREF dibdrv_SetBkColor( PHYSDEV dev, COLORREF color )
 343 {
 344     PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetBkColor );
 345     dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
 346
 347     pdev->bkgnd_color = pdev->dib.funcs->colorref_to_pixel( &pdev->dib, color );
 348
 349     if( GetBkMode(dev->hdc) == OPAQUE )
 350         calc_and_xor_masks( GetROP2(dev->hdc), pdev->bkgnd_color, &pdev->bkgnd_and, &pdev->bkgnd_xor );
 351     else
 352     {
 353         pdev->bkgnd_and = ~0u;
 354         pdev->bkgnd_xor = 0;
 355     }
 356
 357     update_fg_colors( pdev ); /* Only needed in the 1 bpp case */
 358
 359     return next->funcs->pSetBkColor( next, color );
 360 }
 361
 362 /***********************************************************************
 363  *           dibdrv_SetBkMode
 364  */
 365 static INT dibdrv_SetBkMode( PHYSDEV dev, INT mode )
 366 {
 367     PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetBkMode );
 368     dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
 369
 370     if( mode == OPAQUE )
 371         calc_and_xor_masks( GetROP2(dev->hdc), pdev->bkgnd_color, &pdev->bkgnd_and, &pdev->bkgnd_xor );
 372     else
 373     {
 374         pdev->bkgnd_and = ~0u;
 375         pdev->bkgnd_xor = 0;
 376     }
 377
 378     return next->funcs->pSetBkMode( next, mode );
 379 }
 380
 381 /***********************************************************************
 382  *           dibdrv_SetDeviceClipping
 383  */
 384 static void dibdrv_SetDeviceClipping( PHYSDEV dev, HRGN vis_rgn, HRGN clip_rgn )
 385 {
 386     PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetDeviceClipping );
 387     dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
 388     TRACE("(%p, %p, %p)\n", dev, vis_rgn, clip_rgn);
 389
 390     CombineRgn( pdev->clip, vis_rgn, clip_rgn, clip_rgn ? RGN_AND : RGN_COPY );
 391     return next->funcs->pSetDeviceClipping( next, vis_rgn, clip_rgn);
 392 }
 393
 394 /***********************************************************************
 395  *           dibdrv_SetDIBColorTable
 396  */
 397 static UINT dibdrv_SetDIBColorTable( PHYSDEV dev, UINT pos, UINT count, const RGBQUAD *colors )
 398 {
 399     PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetDIBColorTable );
 400     dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
 401     TRACE("(%p, %d, %d, %p)\n", dev, pos, count, colors);
 402
 403     if( pdev->dib.color_table && pos < pdev->dib.color_table_size )
 404     {
 405         if( pos + count > pdev->dib.color_table_size ) count = pdev->dib.color_table_size - pos;
 406         memcpy( pdev->dib.color_table + pos, colors, count * sizeof(RGBQUAD) );
 407
 408         pdev->bkgnd_color = pdev->dib.funcs->colorref_to_pixel( &pdev->dib, GetBkColor( dev->hdc ) );
 409         update_fg_colors( pdev );
 410
 411         update_masks( pdev, GetROP2( dev->hdc ) );
 412     }
 413     return next->funcs->pSetDIBColorTable( next, pos, count, colors );
 414 }
 415
 416 /***********************************************************************
 417  *           dibdrv_SetROP2
 418  */
 419 static INT dibdrv_SetROP2( PHYSDEV dev, INT rop )
 420 {
 421     PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetROP2 );
 422     dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
 423
 424     update_masks( pdev, rop );
 425
 426     return next->funcs->pSetROP2( next, rop );
 427 }
 428
 429 const DC_FUNCTIONS dib_driver =
 430 {
 431     NULL,                               /* pAbortDoc */
 432     NULL,                               /* pAbortPath */
 433     NULL,                               /* pAlphaBlend */
 434     NULL,                               /* pAngleArc */
 435     NULL,                               /* pArc */
 436     NULL,                               /* pArcTo */
 437     NULL,                               /* pBeginPath */
 438     NULL,                               /* pChoosePixelFormat */
 439     NULL,                               /* pChord */
 440     NULL,                               /* pCloseFigure */
 441     NULL,                               /* pCreateBitmap */
 442     NULL,                               /* pCreateDC */
 443     NULL,                               /* pCreateDIBSection */
 444     NULL,                               /* pDeleteBitmap */
 445     dibdrv_DeleteDC,                    /* pDeleteDC */
 446     NULL,                               /* pDeleteObject */
 447     NULL,                               /* pDescribePixelFormat */
 448     NULL,                               /* pDeviceCapabilities */
 449     NULL,                               /* pEllipse */
 450     NULL,                               /* pEndDoc */
 451     NULL,                               /* pEndPage */
 452     NULL,                               /* pEndPath */
 453     NULL,                               /* pEnumDeviceFonts */
 454     NULL,                               /* pEnumICMProfiles */
 455     NULL,                               /* pExcludeClipRect */
 456     NULL,                               /* pExtDeviceMode */
 457     NULL,                               /* pExtEscape */
 458     NULL,                               /* pExtFloodFill */
 459     NULL,                               /* pExtSelectClipRgn */
 460     NULL,                               /* pExtTextOut */
 461     NULL,                               /* pFillPath */
 462     NULL,                               /* pFillRgn */
 463     NULL,                               /* pFlattenPath */
 464     NULL,                               /* pFrameRgn */
 465     NULL,                               /* pGdiComment */
 466     NULL,                               /* pGetBitmapBits */
 467     NULL,                               /* pGetCharWidth */
 468     NULL,                               /* pGetDIBits */
 469     NULL,                               /* pGetDeviceCaps */
 470     NULL,                               /* pGetDeviceGammaRamp */
 471     NULL,                               /* pGetICMProfile */
 472     NULL,                               /* pGetImage */
 473     NULL,                               /* pGetNearestColor */
 474     NULL,                               /* pGetPixel */
 475     NULL,                               /* pGetPixelFormat */
 476     NULL,                               /* pGetSystemPaletteEntries */
 477     NULL,                               /* pGetTextExtentExPoint */
 478     NULL,                               /* pGetTextMetrics */
 479     NULL,                               /* pIntersectClipRect */
 480     NULL,                               /* pInvertRgn */
 481     dibdrv_LineTo,                      /* pLineTo */
 482     NULL,                               /* pModifyWorldTransform */
 483     NULL,                               /* pMoveTo */
 484     NULL,                               /* pOffsetClipRgn */
 485     NULL,                               /* pOffsetViewportOrg */
 486     NULL,                               /* pOffsetWindowOrg */
 487     dibdrv_PaintRgn,                    /* pPaintRgn */
 488     dibdrv_PatBlt,                      /* pPatBlt */
 489     NULL,                               /* pPie */
 490     NULL,                               /* pPolyBezier */
 491     NULL,                               /* pPolyBezierTo */
 492     NULL,                               /* pPolyDraw */
 493     NULL,                               /* pPolyPolygon */
 494     NULL,                               /* pPolyPolyline */
 495     NULL,                               /* pPolygon */
 496     NULL,                               /* pPolyline */
 497     NULL,                               /* pPolylineTo */
 498     NULL,                               /* pPutImage */
 499     NULL,                               /* pRealizeDefaultPalette */
 500     NULL,                               /* pRealizePalette */
 501     dibdrv_Rectangle,                   /* pRectangle */
 502     NULL,                               /* pResetDC */
 503     NULL,                               /* pRestoreDC */
 504     NULL,                               /* pRoundRect */
 505     NULL,                               /* pSaveDC */
 506     NULL,                               /* pScaleViewportExt */
 507     NULL,                               /* pScaleWindowExt */
 508     dibdrv_SelectBitmap,                /* pSelectBitmap */
 509     dibdrv_SelectBrush,                 /* pSelectBrush */
 510     NULL,                               /* pSelectClipPath */
 511     NULL,                               /* pSelectFont */
 512     NULL,                               /* pSelectPalette */
 513     dibdrv_SelectPen,                   /* pSelectPen */
 514     NULL,                               /* pSetArcDirection */
 515     NULL,                               /* pSetBitmapBits */
 516     dibdrv_SetBkColor,                  /* pSetBkColor */
 517     dibdrv_SetBkMode,                   /* pSetBkMode */
 518     dibdrv_SetDCBrushColor,             /* pSetDCBrushColor */
 519     dibdrv_SetDCPenColor,               /* pSetDCPenColor */
 520     dibdrv_SetDIBColorTable,            /* pSetDIBColorTable */
 521     NULL,                               /* pSetDIBits */
 522     NULL,                               /* pSetDIBitsToDevice */
 523     dibdrv_SetDeviceClipping,           /* pSetDeviceClipping */
 524     NULL,                               /* pSetDeviceGammaRamp */
 525     NULL,                               /* pSetLayout */
 526     NULL,                               /* pSetMapMode */
 527     NULL,                               /* pSetMapperFlags */
 528     NULL,                               /* pSetPixel */
 529     NULL,                               /* pSetPixelFormat */
 530     NULL,                               /* pSetPolyFillMode */
 531     dibdrv_SetROP2,                     /* pSetROP2 */
 532     NULL,                               /* pSetRelAbs */
 533     NULL,                               /* pSetStretchBltMode */
 534     NULL,                               /* pSetTextAlign */
 535     NULL,                               /* pSetTextCharacterExtra */
 536     NULL,                               /* pSetTextColor */
 537     NULL,                               /* pSetTextJustification */
 538     NULL,                               /* pSetViewportExt */
 539     NULL,                               /* pSetViewportOrg */
 540     NULL,                               /* pSetWindowExt */
 541     NULL,                               /* pSetWindowOrg */
 542     NULL,                               /* pSetWorldTransform */
 543     NULL,                               /* pStartDoc */
 544     NULL,                               /* pStartPage */
 545     NULL,                               /* pStretchBlt */
 546     NULL,                               /* pStretchDIBits */
 547     NULL,                               /* pStrokeAndFillPath */
 548     NULL,                               /* pStrokePath */
 549     NULL,                               /* pSwapBuffers */
 550     NULL,                               /* pUnrealizePalette */
 551     NULL,                               /* pWidenPath */
 552     NULL,                               /* pwglCopyContext */
 553     NULL,                               /* pwglCreateContext */
 554     NULL,                               /* pwglCreateContextAttribsARB */
 555     NULL,                               /* pwglDeleteContext */
 556     NULL,                               /* pwglGetPbufferDCARB */
 557     NULL,                               /* pwglGetProcAddress */
 558     NULL,                               /* pwglMakeContextCurrentARB */
 559     NULL,                               /* pwglMakeCurrent */
 560     NULL,                               /* pwglSetPixelFormatWINE */
 561     NULL,                               /* pwglShareLists */
 562     NULL,                               /* pwglUseFontBitmapsA */
 563     NULL                                /* pwglUseFontBitmapsW */
 564 };