reactos/subsys/win32k/dib/dib24bpp.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: dib24bpp.c,v 1.19 2004/04/06 17:54:32 weiden 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_24BPP_PutPixel(PSURFOBJ SurfObj, LONG x, LONG y, ULONG c)
  34 {
  35   PBYTE addr = SurfObj->pvScan0 + (y * SurfObj->lDelta) + (x << 1) + x;
  36   *(PUSHORT)(addr) = c & 0xFFFF;
  37   *(addr + 2) = (c >> 16) & 0xFF;
  38 }
  39
  40 ULONG
  41 DIB_24BPP_GetPixel(PSURFOBJ SurfObj, LONG x, LONG y)
  42 {
  43   PBYTE addr = SurfObj->pvScan0 + y * SurfObj->lDelta + (x << 1) + x;
  44   return *(PUSHORT)(addr) + (*(addr + 2) << 16);
  45 }
  46
  47 VOID
  48 DIB_24BPP_HLine(PSURFOBJ SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
  49 {
  50   PBYTE addr = SurfObj->pvScan0 + y * SurfObj->lDelta + (x1 << 1) + x1;
  51   LONG cx = x1;
  52
  53   c &= 0xFFFFFF;
  54   while(cx < x2) {
  55     *(PUSHORT)(addr) = c & 0xFFFF;
  56     addr += 2;
  57     *(addr) = c >> 16;
  58     addr += 1;
  59     ++cx;
  60   }
  61 }
  62
  63 VOID
  64 DIB_24BPP_VLine(PSURFOBJ SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
  65 {
  66   PBYTE addr = SurfObj->pvScan0 + y1 * SurfObj->lDelta + (x << 1) + x;
  67   LONG lDelta = SurfObj->lDelta;
  68
  69   c &= 0xFFFFFF;
  70   while(y1++ < y2) {
  71     *(PUSHORT)(addr) = c & 0xFFFF;
  72     *(addr + 2) = c >> 16;
  73
  74     addr += lDelta;
  75   }
  76 }
  77
  78 BOOLEAN
  79 DIB_24BPP_BitBltSrcCopy(  SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
  80                           SURFGDI *DestGDI,  SURFGDI *SourceGDI,
  81                           PRECTL  DestRect,  POINTL  *SourcePoint,
  82                           XLATEOBJ *ColorTranslation)
  83 {
  84   LONG     i, j, sx, sy, xColor, f1;
  85   PBYTE    SourceBits, DestBits, SourceLine, DestLine;
  86   PBYTE    SourceBits_4BPP, SourceLine_4BPP;
  87   PWORD    SourceBits_16BPP, SourceLine_16BPP;
  88
  89   DestBits = DestSurf->pvScan0 + (DestRect->top * DestSurf->lDelta) + DestRect->left * 3;
  90
  91   switch(SourceGDI->BitsPerPixel)
  92   {
  93     case 1:
  94       sx = SourcePoint->x;
  95       sy = SourcePoint->y;
  96
  97       for (j=DestRect->top; j<DestRect->bottom; j++)
  98       {
  99         sx = SourcePoint->x;
 100         for (i=DestRect->left; i<DestRect->right; i++)
 101         {
 102           if(DIB_1BPP_GetPixel(SourceSurf, sx, sy) == 0)
 103           {
 104             DIB_24BPP_PutPixel(DestSurf, i, j, XLATEOBJ_iXlate(ColorTranslation, 0));
 105           } else {
 106             DIB_24BPP_PutPixel(DestSurf, i, j, XLATEOBJ_iXlate(ColorTranslation, 1));
 107           }
 108           sx++;
 109         }
 110         sy++;
 111       }
 112       break;
 113
 114     case 4:
 115       SourceBits_4BPP = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + (SourcePoint->x >> 1);
 116
 117       for (j=DestRect->top; j<DestRect->bottom; j++)
 118       {
 119         SourceLine_4BPP = SourceBits_4BPP;
 120         DestLine = DestBits;
 121         sx = SourcePoint->x;
 122         f1 = sx & 1;
 123
 124         for (i=DestRect->left; i<DestRect->right; i++)
 125         {
 126           xColor = XLATEOBJ_iXlate(ColorTranslation,
 127               (*SourceLine_4BPP & altnotmask[f1]) >> (4 * (1 - f1)));
 128           *DestLine++ = xColor & 0xff;
 129           *(PWORD)DestLine = xColor >> 8;
 130           DestLine += 2;
 131           if(f1 == 1) { SourceLine_4BPP++; f1 = 0; } else { f1 = 1; }
 132           sx++;
 133         }
 134
 135         SourceBits_4BPP += SourceSurf->lDelta;
 136         DestBits += DestSurf->lDelta;
 137       }
 138       break;
 139
 140     case 8:
 141       SourceLine = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + SourcePoint->x;
 142       DestLine = DestBits;
 143
 144       for (j = DestRect->top; j < DestRect->bottom; j++)
 145       {
 146         SourceBits = SourceLine;
 147         DestBits = DestLine;
 148
 149         for (i = DestRect->left; i < DestRect->right; i++)
 150         {
 151           xColor = XLATEOBJ_iXlate(ColorTranslation, *SourceBits);
 152           *DestBits = xColor & 0xff;
 153           *(PWORD)(DestBits + 1) = xColor >> 8;
 154           SourceBits += 1;
 155           DestBits += 3;
 156         }
 157
 158         SourceLine += SourceSurf->lDelta;
 159         DestLine += DestSurf->lDelta;
 160       }
 161       break;
 162
 163     case 16:
 164       SourceBits_16BPP = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + 2 * SourcePoint->x;
 165
 166       for (j=DestRect->top; j<DestRect->bottom; j++)
 167       {
 168         SourceLine_16BPP = SourceBits_16BPP;
 169         DestLine = DestBits;
 170
 171         for (i=DestRect->left; i<DestRect->right; i++)
 172         {
 173           xColor = XLATEOBJ_iXlate(ColorTranslation, *SourceLine_16BPP);
 174           *DestLine++ = xColor & 0xff;
 175           *(PWORD)DestLine = xColor >> 8;
 176           DestLine += 2;
 177           SourceLine_16BPP++;
 178         }
 179
 180         SourceBits_16BPP = (PWORD)((PBYTE)SourceBits_16BPP + SourceSurf->lDelta);
 181         DestBits += DestSurf->lDelta;
 182       }
 183       break;
 184
 185     case 24:
 186       if (NULL == ColorTranslation || 0 != (ColorTranslation->flXlate & XO_TRIVIAL))
 187       {
 188         if (DestRect->top < SourcePoint->y)
 189           {
 190             SourceBits = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + 3 * SourcePoint->x;
 191             for (j = DestRect->top; j < DestRect->bottom; j++)
 192               {
 193                 RtlMoveMemory(DestBits, SourceBits, 3 * (DestRect->right - DestRect->left));
 194                 SourceBits += SourceSurf->lDelta;
 195                 DestBits += DestSurf->lDelta;
 196               }
 197           }
 198         else
 199           {
 200             SourceBits = SourceSurf->pvScan0 + ((SourcePoint->y + DestRect->bottom - DestRect->top - 1) * SourceSurf->lDelta) + 3 * SourcePoint->x;
 201             DestBits = DestSurf->pvScan0 + ((DestRect->bottom - 1) * DestSurf->lDelta) + 3 * DestRect->left;
 202             for (j = DestRect->bottom - 1; DestRect->top <= j; j--)
 203               {
 204                 RtlMoveMemory(DestBits, SourceBits, 3 * (DestRect->right - DestRect->left));
 205                 SourceBits -= SourceSurf->lDelta;
 206                 DestBits -= DestSurf->lDelta;
 207               }
 208           }
 209       }
 210       else
 211       {
 212         /* FIXME */
 213         DPRINT1("DIB_24BPP_Bitblt: Unhandled ColorTranslation for 16 -> 16 copy");
 214         return FALSE;
 215       }
 216       break;
 217
 218     case 32:
 219       SourceLine = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + 4 * SourcePoint->x;
 220       DestLine = DestBits;
 221
 222       for (j = DestRect->top; j < DestRect->bottom; j++)
 223       {
 224         SourceBits = SourceLine;
 225         DestBits = DestLine;
 226
 227         for (i = DestRect->left; i < DestRect->right; i++)
 228         {
 229           xColor = XLATEOBJ_iXlate(ColorTranslation, *((PDWORD) SourceBits));
 230           *DestBits = xColor & 0xff;
 231           *(PWORD)(DestBits + 1) = xColor >> 8;
 232           SourceBits += 4;
 233           DestBits += 3;
 234         }
 235
 236         SourceLine += SourceSurf->lDelta;
 237         DestLine += DestSurf->lDelta;
 238       }
 239       break;
 240
 241     default:
 242       DbgPrint("DIB_24BPP_Bitblt: Unhandled Source BPP: %u\n", SourceGDI->BitsPerPixel);
 243       return FALSE;
 244   }
 245
 246   return TRUE;
 247 }
 248
 249 BOOLEAN
 250 DIB_24BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
 251                  SURFGDI *DestGDI,  SURFGDI *SourceGDI,
 252                  PRECTL  DestRect,  POINTL  *SourcePoint,
 253                  PBRUSHOBJ Brush, PPOINTL BrushOrigin,
 254                  XLATEOBJ *ColorTranslation, ULONG Rop4)
 255 {
 256    ULONG X, Y;
 257    ULONG SourceX, SourceY;
 258    ULONG Dest, Source, Pattern;
 259    PBYTE DestBits;
 260    BOOL UsesSource;
 261    BOOL UsesPattern;
 262    /* Pattern brushes */
 263    PGDIBRUSHOBJ GdiBrush;
 264    HBITMAP PatternSurface = NULL;
 265    PSURFOBJ PatternObj;
 266    ULONG PatternWidth, PatternHeight;
 267
 268    if (Rop4 == SRCCOPY)
 269    {
 270       return DIB_24BPP_BitBltSrcCopy(
 271          DestSurf,
 272          SourceSurf,
 273          DestGDI,
 274          SourceGDI,
 275          DestRect,
 276          SourcePoint,
 277          ColorTranslation);
 278    }
 279
 280    UsesSource = ((Rop4 & 0xCC0000) >> 2) != (Rop4 & 0x330000);
 281    UsesPattern = ((Rop4 & 0xF00000) >> 4) != (Rop4 & 0x0F0000);
 282
 283    if (UsesPattern)
 284    {
 285       if (Brush == NULL)
 286       {
 287          UsesPattern = FALSE;
 288       } else
 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    }
 307
 308    SourceY = SourcePoint->y;
 309    DestBits = (PBYTE)(
 310       DestSurf->pvScan0 +
 311       (DestRect->left << 1) + DestRect->left +
 312       DestRect->top * DestSurf->lDelta);
 313
 314    for (Y = DestRect->top; Y < DestRect->bottom; Y++)
 315    {
 316       SourceX = SourcePoint->x;
 317       for (X = DestRect->left; X < DestRect->right; X++, DestBits += 3, SourceX++)
 318       {
 319          Dest = *((PUSHORT)DestBits) + (*(DestBits + 2) << 16);
 320
 321          if (UsesSource)
 322          {
 323             Source = DIB_GetSource(SourceSurf, SourceGDI, SourceX, SourceY, ColorTranslation);
 324          }
 325
 326          if (UsesPattern)
 327          {
 328             if (Brush->iSolidColor == 0xFFFFFFFF)
 329             {
 330                Pattern = DIB_1BPP_GetPixel(PatternObj, X % PatternWidth, Y % PatternHeight) ? GdiBrush->crFore : GdiBrush->crBack;
 331             }
 332             else
 333             {
 334                Pattern = Brush->iSolidColor;
 335             }
 336          }
 337
 338          Dest = DIB_DoRop(Rop4, Dest, Source, Pattern) & 0xFFFFFF;
 339          *(PUSHORT)(DestBits) = Dest & 0xFFFF;
 340          *(DestBits + 2) = Dest >> 16;
 341       }
 342
 343       SourceY++;
 344       DestBits -= (DestRect->right - DestRect->left) * 3;
 345       DestBits += DestSurf->lDelta;
 346    }
 347
 348    if (PatternSurface != NULL)
 349       EngDeleteSurface(PatternSurface);
 350
 351    return TRUE;
 352 }
 353
 354 BOOLEAN DIB_24BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
 355                             SURFGDI *DestGDI, SURFGDI *SourceGDI,
 356                             RECTL* DestRect, RECTL *SourceRect,
 357                             POINTL* MaskOrigin, POINTL* BrushOrigin,
 358                                         XLATEOBJ *ColorTranslation, ULONG Mode)
 359 {
 360   DbgPrint("DIB_24BPP_StretchBlt: Source BPP: %u\n", SourceGDI->BitsPerPixel);
 361   return FALSE;
 362 }
 363
 364 BOOLEAN
 365 DIB_24BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
 366                          PSURFGDI DestGDI,  PSURFGDI SourceGDI,
 367                          RECTL*  DestRect,  POINTL  *SourcePoint,
 368                          XLATEOBJ *ColorTranslation, ULONG iTransColor)
 369 {
 370   return FALSE;
 371 }
 372
 373 /* EOF */