reactos/subsys/win32k/dib/dib4bpp.c

   1 /*
   2  *  ReactOS W32 Subsystem
   3  *  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /* $Id: dib4bpp.c,v 1.31 2004/04/07 20:23:38 navaraf Exp $ */
  20 #undef WIN32_LEAN_AND_MEAN
  21 #include <windows.h>
  22 #include <stdlib.h>
  23 #include <win32k/bitmaps.h>
  24 #include <win32k/brush.h>
  25 #include <win32k/debug.h>
  26 #include <debug.h>
  27 #include <include/object.h>
  28 #include <ddk/winddi.h>
  29 #include "../eng/objects.h"
  30 #include "dib.h"
  31
  32 VOID
  33 DIB_4BPP_PutPixel(PSURFOBJ SurfObj, LONG x, LONG y, ULONG c)
  34 {
  35    PBYTE addr = SurfObj->pvScan0 + (x>>1) + y * SurfObj->lDelta;
  36    *addr = (*addr & notmask[x&1]) | (c << ((1-(x&1))<<2));
  37 }
  38
  39 ULONG
  40 DIB_4BPP_GetPixel(PSURFOBJ SurfObj, LONG x, LONG y)
  41 {
  42    PBYTE addr = SurfObj->pvScan0 + (x>>1) + y * SurfObj->lDelta;
  43    return (*addr >> ((1-(x&1))<<2)) & 0x0f;
  44 }
  45
  46 VOID
  47 DIB_4BPP_HLine(PSURFOBJ SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
  48 {
  49   PBYTE  addr = SurfObj->pvScan0 + (x1>>1) + y * SurfObj->lDelta;
  50   LONG  cx = x1;
  51
  52   while(cx < x2) {
  53     *addr = (*addr & notmask[x1&1]) | (c << ((1-(x1&1))<<2));
  54     if((++x1 & 1) == 0)
  55       ++addr;
  56     ++cx;
  57   }
  58 }
  59
  60 VOID
  61 DIB_4BPP_VLine(PSURFOBJ SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
  62 {
  63   PBYTE  addr = SurfObj->pvScan0;
  64   int  lDelta = SurfObj->lDelta;
  65
  66   addr += (x>>1) + y1 * lDelta;
  67   while(y1++ < y2) {
  68     *addr = (*addr & notmask[x&1]) | (c << ((1-(x&1))<<2));
  69     addr += lDelta;
  70   }
  71 }
  72
  73 BOOLEAN STATIC
  74 DIB_4BPP_BitBltSrcCopy(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
  75                        SURFGDI *DestGDI,  SURFGDI *SourceGDI,
  76                        PRECTL  DestRect,  POINTL  *SourcePoint,
  77                        XLATEOBJ* ColorTranslation)
  78 {
  79   LONG     i, j, sx, sy, f2, xColor;
  80   PBYTE    SourceBits_24BPP, SourceLine_24BPP;
  81   PBYTE    DestBits, DestLine, SourceBits_8BPP, SourceLine_8BPP;
  82   PBYTE    SourceBits, SourceLine;
  83
  84   DestBits = DestSurf->pvScan0 + (DestRect->left>>1) + DestRect->top * DestSurf->lDelta;
  85
  86   switch(SourceGDI->BitsPerPixel)
  87   {
  88     case 1:
  89       sx = SourcePoint->x;
  90       sy = SourcePoint->y;
  91
  92       for (j=DestRect->top; j<DestRect->bottom; j++)
  93       {
  94         sx = SourcePoint->x;
  95         for (i=DestRect->left; i<DestRect->right; i++)
  96         {
  97           if(DIB_1BPP_GetPixel(SourceSurf, sx, sy) == 0)
  98           {
  99             DIB_4BPP_PutPixel(DestSurf, i, j, XLATEOBJ_iXlate(ColorTranslation, 0));
 100           } else {
 101             DIB_4BPP_PutPixel(DestSurf, i, j, XLATEOBJ_iXlate(ColorTranslation, 1));
 102           }
 103           sx++;
 104         }
 105         sy++;
 106       }
 107       break;
 108
 109     case 4:
 110       sy = SourcePoint->y;
 111
 112       for (j=DestRect->top; j<DestRect->bottom; j++)
 113       {
 114         sx = SourcePoint->x;
 115
 116         for (i=DestRect->left; i<DestRect->right; i++)
 117         {
 118           if (NULL != ColorTranslation)
 119           {
 120             DIB_4BPP_PutPixel(DestSurf, i, j, XLATEOBJ_iXlate(ColorTranslation, DIB_4BPP_GetPixel(SourceSurf, sx, sy)));
 121           }
 122           else
 123           {
 124             DIB_4BPP_PutPixel(DestSurf, i, j, DIB_4BPP_GetPixel(SourceSurf, sx, sy));
 125           }
 126           sx++;
 127         }
 128         sy++;
 129       }
 130       break;
 131
 132     case 8:
 133       SourceBits_8BPP = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + SourcePoint->x;
 134
 135       for (j=DestRect->top; j<DestRect->bottom; j++)
 136       {
 137         SourceLine_8BPP = SourceBits_8BPP;
 138         DestLine = DestBits;
 139         f2 = DestRect->left & 1;
 140
 141         for (i=DestRect->left; i<DestRect->right; i++)
 142         {
 143           *DestLine = (*DestLine & notmask[f2]) |
 144             ((XLATEOBJ_iXlate(ColorTranslation, *SourceLine_8BPP)) << ((4 * (1 - f2))));
 145           if(f2 == 1) { DestLine++; f2 = 0; } else { f2 = 1; }
 146           SourceLine_8BPP++;
 147         }
 148
 149         SourceBits_8BPP += SourceSurf->lDelta;
 150         DestBits += DestSurf->lDelta;
 151       }
 152       break;
 153
 154     case 16:
 155       SourceLine = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + 2 * SourcePoint->x;
 156       DestLine = DestBits;
 157
 158       for (j = DestRect->top; j < DestRect->bottom; j++)
 159       {
 160         SourceBits = SourceLine;
 161         DestBits = DestLine;
 162         f2 = DestRect->left & 1;
 163
 164         for (i = DestRect->left; i < DestRect->right; i++)
 165         {
 166           xColor = *((PWORD) SourceBits);
 167           *DestBits = (*DestBits & notmask[f2]) |
 168             ((XLATEOBJ_iXlate(ColorTranslation, xColor)) << ((4 * (1 - f2))));
 169           if(f2 == 1) { DestBits++; f2 = 0; } else { f2 = 1; }
 170           SourceBits += 2;
 171         }
 172
 173         SourceLine += SourceSurf->lDelta;
 174         DestLine += DestSurf->lDelta;
 175       }
 176       break;
 177
 178     case 24:
 179       SourceBits_24BPP = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + SourcePoint->x * 3;
 180
 181       for (j=DestRect->top; j<DestRect->bottom; j++)
 182       {
 183         SourceLine_24BPP = SourceBits_24BPP;
 184         DestLine = DestBits;
 185         f2 = DestRect->left & 1;
 186
 187         for (i=DestRect->left; i<DestRect->right; i++)
 188         {
 189           xColor = (*(SourceLine_24BPP + 2) << 0x10) +
 190              (*(SourceLine_24BPP + 1) << 0x08) +
 191              (*(SourceLine_24BPP));
 192           *DestLine = (*DestLine & notmask[f2]) |
 193             ((XLATEOBJ_iXlate(ColorTranslation, xColor)) << ((4 * (1 - f2))));
 194           if(f2 == 1) { DestLine++; f2 = 0; } else { f2 = 1; }
 195           SourceLine_24BPP+=3;
 196         }
 197
 198         SourceBits_24BPP += SourceSurf->lDelta;
 199         DestBits += DestSurf->lDelta;
 200       }
 201       break;
 202
 203     case 32:
 204       SourceLine = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + 4 * SourcePoint->x;
 205       DestLine = DestBits;
 206
 207       for (j = DestRect->top; j < DestRect->bottom; j++)
 208       {
 209         SourceBits = SourceLine;
 210         DestBits = DestLine;
 211         f2 = DestRect->left & 1;
 212
 213         for (i = DestRect->left; i < DestRect->right; i++)
 214         {
 215           xColor = *((PDWORD) SourceBits);
 216           *DestBits = (*DestBits & notmask[f2]) |
 217             ((XLATEOBJ_iXlate(ColorTranslation, xColor)) << ((4 * (1 - f2))));
 218           if(f2 == 1) { DestBits++; f2 = 0; } else { f2 = 1; }
 219           SourceBits += 4;
 220         }
 221
 222         SourceLine += SourceSurf->lDelta;
 223         DestLine += DestSurf->lDelta;
 224       }
 225       break;
 226
 227     default:
 228       DbgPrint("DIB_4BPP_Bitblt: Unhandled Source BPP: %u\n", SourceGDI->BitsPerPixel);
 229       return FALSE;
 230   }
 231   return(TRUE);
 232 }
 233
 234 BOOLEAN
 235 DIB_4BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
 236                 SURFGDI *DestGDI,  SURFGDI *SourceGDI,
 237                 PRECTL  DestRect,  POINTL  *SourcePoint,
 238                 PBRUSHOBJ Brush, PPOINTL BrushOrigin,
 239                 XLATEOBJ *ColorTranslation, ULONG Rop4)
 240 {
 241    LONG i, j, sx, sy;
 242    ULONG Dest, Source, Pattern = 0, PatternY;
 243    PULONG DestBits;
 244    BOOL UsesSource;
 245    BOOL UsesPattern;
 246    LONG RoundedRight;
 247    /* Pattern brushes */
 248    PGDIBRUSHOBJ GdiBrush;
 249    HBITMAP PatternSurface = NULL;
 250    PSURFOBJ PatternObj;
 251    ULONG PatternWidth, PatternHeight;
 252    static const ULONG ExpandSolidColor[16] =
 253    {
 254       0x00000000 /* 0 */,
 255       0x11111111 /* 1 */,
 256       0x22222222 /* 2 */,
 257       0x33333333 /* 3 */,
 258       0x44444444 /* 4 */,
 259       0x55555555 /* 5 */,
 260       0x66666666 /* 6 */,
 261       0x77777777 /* 7 */,
 262       0x88888888 /* 8 */,
 263       0x99999999 /* 9 */,
 264       0xAAAAAAAA /* 10 */,
 265       0xBBBBBBBB /* 11 */,
 266       0xCCCCCCCC /* 12 */,
 267       0xDDDDDDDD /* 13 */,
 268       0xEEEEEEEE /* 14 */,
 269       0xFFFFFFFF /* 15 */,
 270    };
 271
 272    if (Rop4 == SRCCOPY)
 273    {
 274       return DIB_4BPP_BitBltSrcCopy(
 275          DestSurf,
 276          SourceSurf,
 277          DestGDI,
 278          SourceGDI,
 279          DestRect,
 280          SourcePoint,
 281          ColorTranslation);
 282    }
 283
 284    UsesSource = ((Rop4 & 0xCC0000) >> 2) != (Rop4 & 0x330000);
 285    UsesPattern = (((Rop4 & 0xF00000) >> 4) != (Rop4 & 0x0F0000)) && Brush;
 286
 287    if (UsesPattern)
 288    {
 289       if (Brush->iSolidColor == 0xFFFFFFFF)
 290       {
 291          PBITMAPOBJ PatternBitmap;
 292
 293          GdiBrush = CONTAINING_RECORD(
 294             Brush,
 295             GDIBRUSHOBJ,
 296             BrushObject);
 297
 298          PatternBitmap = BITMAPOBJ_LockBitmap(GdiBrush->hbmPattern);
 299          PatternSurface = BitmapToSurf(PatternBitmap, NULL);
 300          BITMAPOBJ_UnlockBitmap(GdiBrush->hbmPattern);
 301
 302          PatternObj = (PSURFOBJ)AccessUserObject((ULONG)PatternSurface);
 303          PatternWidth = PatternObj->sizlBitmap.cx;
 304          PatternHeight = PatternObj->sizlBitmap.cy;
 305
 306          UsesPattern = TRUE;
 307       }
 308       else
 309       {
 310          UsesPattern = FALSE;
 311          Pattern = ExpandSolidColor[Brush->iSolidColor & 0xF];
 312       }
 313    }
 314
 315    sy = SourcePoint->y;
 316    RoundedRight = DestRect->right - ((DestRect->right - DestRect->left) & 0x7);
 317
 318    for (j = DestRect->top; j < DestRect->bottom; j++, sy++)
 319    {
 320       DestBits = (PULONG)(DestSurf->pvScan0 + (DestRect->left >> 1) + j * DestSurf->lDelta);
 321       sx = SourcePoint->x;
 322       i = DestRect->left;
 323
 324       if (UsesPattern)
 325          PatternY = j % PatternHeight;
 326
 327       if (i & 0x1)
 328       {
 329          Dest = DIB_4BPP_GetPixel(DestSurf, i, j);
 330
 331          if (UsesSource)
 332          {
 333             Source = DIB_GetSource(SourceSurf, SourceGDI, sx, sy, ColorTranslation);
 334          }
 335
 336          if (UsesPattern)
 337          {
 338             Pattern = DIB_1BPP_GetPixel(PatternObj, i % PatternWidth, PatternY) ? GdiBrush->crFore : GdiBrush->crBack;
 339          }
 340
 341          DIB_4BPP_PutPixel(DestSurf, i, j, DIB_DoRop(Rop4, Dest, Source, Pattern) & 0xF);
 342
 343          i++;
 344          sx++;
 345          DestBits = (PULONG)((ULONG_PTR)DestBits + 1);
 346       }
 347
 348       for (; i < RoundedRight; i += 8, sx += 8, DestBits++)
 349       {
 350          Dest = *DestBits;
 351          if (UsesSource)
 352          {
 353             Source =
 354                (DIB_GetSource(SourceSurf, SourceGDI, sx + 1, sy, ColorTranslation)) |
 355                (DIB_GetSource(SourceSurf, SourceGDI, sx + 0, sy, ColorTranslation) << 4) |
 356                (DIB_GetSource(SourceSurf, SourceGDI, sx + 3, sy, ColorTranslation) << 8) |
 357                (DIB_GetSource(SourceSurf, SourceGDI, sx + 2, sy, ColorTranslation) << 12) |
 358                (DIB_GetSource(SourceSurf, SourceGDI, sx + 5, sy, ColorTranslation) << 16) |
 359                (DIB_GetSource(SourceSurf, SourceGDI, sx + 4, sy, ColorTranslation) << 20) |
 360                (DIB_GetSource(SourceSurf, SourceGDI, sx + 7, sy, ColorTranslation) << 24) |
 361                (DIB_GetSource(SourceSurf, SourceGDI, sx + 6, sy, ColorTranslation) << 28);
 362          }
 363          if (UsesPattern)
 364          {
 365             Pattern = DIB_1BPP_GetPixel(PatternObj, (i + 1) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack;
 366             Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + 0) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack) << 4;
 367             Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + 3) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack) << 8;
 368             Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + 2) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack) << 12;
 369             Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + 5) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack) << 16;
 370             Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + 4) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack) << 20;
 371             Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + 7) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack) << 24;
 372             Pattern |= (DIB_1BPP_GetPixel(PatternObj, (i + 6) % PatternWidth, j % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack) << 28;
 373          }
 374          *DestBits = DIB_DoRop(Rop4, Dest, Source, Pattern);
 375       }
 376
 377       /* Process the rest of pixel on the line */
 378       for (; i < DestRect->right; i++, sx++)
 379       {
 380          Dest = DIB_4BPP_GetPixel(DestSurf, i, j);
 381          if (UsesSource)
 382          {
 383             Source = DIB_GetSource(SourceSurf, SourceGDI, sx, sy, ColorTranslation);
 384          }
 385          if (UsesPattern)
 386          {
 387             Pattern = DIB_1BPP_GetPixel(PatternObj, i % PatternWidth, PatternY) ? GdiBrush->crFore : GdiBrush->crBack;
 388          }
 389          DIB_4BPP_PutPixel(DestSurf, i, j, DIB_DoRop(Rop4, Dest, Source, Pattern) & 0xF);
 390       }
 391    }
 392
 393    if (PatternSurface != NULL)
 394       EngDeleteSurface(PatternSurface);
 395
 396    return TRUE;
 397 }
 398
 399 BOOLEAN DIB_4BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
 400                             SURFGDI *DestGDI, SURFGDI *SourceGDI,
 401                             RECTL* DestRect, RECTL *SourceRect,
 402                             POINTL* MaskOrigin, POINTL* BrushOrigin,
 403                                         XLATEOBJ *ColorTranslation, ULONG Mode)
 404 {
 405   DbgPrint("DIB_4BPP_StretchBlt: Source BPP: %u\n", SourceGDI->BitsPerPixel);
 406   return FALSE;
 407 }
 408
 409 BOOLEAN
 410 DIB_4BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
 411                         PSURFGDI DestGDI,  PSURFGDI SourceGDI,
 412                         RECTL*  DestRect,  POINTL  *SourcePoint,
 413                         XLATEOBJ *ColorTranslation, ULONG iTransColor)
 414 {
 415   return FALSE;
 416 }
 417
 418 /* EOF */