graphics/wing.c

   1 /*
   2  * WinG support
   3  *
   4  * Started by Robert Pouliot <krynos@clic.net>
   5  */
   6
   7 #include "ts_xlib.h"
   8 #include "ts_xshm.h"
   9 #include <sys/types.h>
  10 #include <sys/ipc.h>
  11 #ifndef __EMX__
  12 #include <sys/shm.h>
  13 #endif
  14
  15 #include "windows.h"
  16 #include "bitmap.h"
  17 #include "dc.h"
  18 #include "gdi.h"
  19 #include "xmalloc.h"
  20 #include "debug.h"
  21
  22 typedef enum WING_DITHER_TYPE
  23 {
  24   WING_DISPERSED_4x4, WING_DISPERSED_8x8, WING_CLUSTERED_4x4
  25 } WING_DITHER_TYPE;
  26
  27 static int      __WinGOK = -1;
  28
  29 /*
  30  * WinG DIB bitmaps can be selected into DC and then scribbled upon
  31  * by GDI functions. They can also be changed directly. This gives us
  32  * three choices
  33  *      - use original WinG 16-bit DLL
  34  *              requires working 16-bit driver interface
  35  *      - implement DIB graphics driver from scratch
  36  *              see wing.zip size
  37  *      - use shared pixmaps
  38  *              won't work with some videocards and/or videomodes
  39  * 961208 - AK
  40  */
  41
  42 static BITMAPINFOHEADER __bmpiWinG = { 0, 1, -1, 1, 8, BI_RGB, 1, 0, 0, 0, 0 };
  43
  44 static void __initWinG(void)
  45 {
  46   if( __WinGOK < 0 )
  47   {
  48     Status s = TSXShmQueryExtension(display);
  49     if( s )
  50     {
  51       int i = TSXShmPixmapFormat(display);
  52       if( i == ZPixmap && screenDepth == 8 )
  53       {
  54         __WinGOK = True;
  55         return;
  56       }
  57     }
  58     FIXME(wing,"WinG: incorrect depth or unsupported card.\n");
  59     __WinGOK = False;
  60   }
  61 }
  62
  63 /***********************************************************************
  64  *          WinGCreateDC16      (WING.1001)
  65  */
  66 HDC16 WINAPI WinGCreateDC16(void)
  67 {
  68   __initWinG();
  69
  70   if( __WinGOK > 0 )
  71         return CreateCompatibleDC16(0);
  72   return (HDC16)NULL;
  73 }
  74
  75 /***********************************************************************
  76  *  WinGRecommendDIBFormat16    (WING.1002)
  77  */
  78 BOOL16 WINAPI WinGRecommendDIBFormat16(BITMAPINFO *fmt)
  79 {
  80   FIXME(wing,"(%p): stub\n", fmt);
  81
  82   if( __WinGOK > 0 && fmt )
  83   {
  84     memcpy(&fmt->bmiHeader, &__bmpiWinG, sizeof(BITMAPINFOHEADER));
  85     return TRUE;
  86   }
  87   return FALSE;
  88 }
  89
  90 /***********************************************************************
  91  *        WinGCreateBitmap16    (WING.1003)
  92  */
  93 HBITMAP16 WINAPI WinGCreateBitmap16(HDC16 winDC, BITMAPINFO *header,
  94                                     void **bits)
  95 {
  96   FIXME(wing,"(%x,%p,%p): empty stub! (expect failure)\n",
  97         winDC, header, bits);
  98   if( __WinGOK > 0 && header )
  99   {
 100     BITMAPINFOHEADER* bmpi = &header->bmiHeader;
 101
 102      FIXME(wing,"bytes=%i,planes=%i,bpp=%i,x=%i,y=%i,rle=0x%08x,size=%i\n",
 103            (int)bmpi->biSize, bmpi->biPlanes, bmpi->biBitCount,
 104            (int)bmpi->biWidth, (int)bmpi->biHeight,
 105            (unsigned)bmpi->biCompression, (int)bmpi->biSizeImage);
 106
 107 #ifdef PRELIMINARY_WING16_SUPPORT
 108     if( bmpi->biPlanes == __bmpiWinG.biPlanes && bmpi->biBitCount == __bmpiWinG.biBitCount &&
 109         bmpi->biCompression == __bmpiWinG.biCompression && (int)bmpi->biHeight < 0 &&
 110         bmpi->biWidth )
 111     {
 112         unsigned bytes = (bmpi->biWidth + bmpi->biWidth % 2)*(-bmpi->biHeight) * bmpi->biBitCount/8;
 113         int      key = shmget(IPC_PRIVATE, bytes, IPC_CREAT | 0x01FF);
 114
 115         if( key )
 116         {
 117             /* Create the BITMAPOBJ
 118              *
 119              * FIXME: A facility to manage shared memory structures
 120              * which would clean up when Wine crashes. Perhaps a part of
 121              * IPC code can be adapted. Otherwise this code leaves a lot
 122              * of junk in shared memory.
 123              */
 124
 125             HBITMAP16 hbitmap = GDI_AllocObject( sizeof(BITMAPOBJ), BITMAP_MAGIC );
 126             if (hbitmap)
 127             {
 128               __ShmBitmapCtl* p = (__ShmBitmapCtl*)xmalloc(sizeof(__ShmBitmapCtl));
 129                 BITMAPOBJ*       bmpObjPtr = (BITMAPOBJ *) GDI_HEAP_LOCK( hbitmap );
 130
 131                 bmpObjPtr->size.cx = 0;
 132                 bmpObjPtr->size.cy = 0;
 133                 bmpObjPtr->bitmap.bmType = 0;
 134                 bmpObjPtr->bitmap.bmWidth = (INT16)abs(bmpi->biWidth);
 135                 bmpObjPtr->bitmap.bmHeight = -(INT16)bmpi->biHeight;
 136                 bmpObjPtr->bitmap.bmPlanes = (BYTE)bmpi->biPlanes;
 137                 bmpObjPtr->bitmap.bmBitsPixel = (BYTE)bmpi->biBitCount;
 138                 bmpObjPtr->bitmap.bmWidthBytes =
 139                   (INT16)BITMAP_WIDTH_BYTES( bmpObjPtr->bitmap.bmWidth, bmpi->biBitCount );
 140                 bmpObjPtr->bitmap.bmBits = (SEGPTR)p;
 141
 142                 p->si.shmid = key;
 143                 p->si.shmaddr = shmat(key, NULL, 0);
 144                 p->si.readOnly = False;
 145
 146                 if( p->si.shmaddr )
 147                 {
 148                     WORD        sel = 0;
 149
 150                     TSXShmAttach(display, &p->si);
 151                     bmpObjPtr->pixmap = XShmCreatePixmap(display, rootWindow,
 152                                   p->si.shmaddr, &p->si, bmpObjPtr->bitmap.bmWidth,
 153                                   bmpObjPtr->bitmap.bmHeight, bmpi->biBitCount );
 154                     if( bmpObjPtr->pixmap )
 155                     {
 156                         sel = SELECTOR_AllocBlock( p->si.shmaddr, bytes,
 157                                                    SEGMENT_DATA, FALSE, FALSE);
 158                         if (sel) p->bits = PTR_SEG_OFF_TO_SEGPTR(sel,0);
 159                         else TSXFreePixmap( display, bmpObjPtr->pixmap );
 160                     }
 161                     if( !sel )
 162                     {
 163                       shmdt( p->si.shmaddr );
 164                       p->si.shmaddr = NULL;
 165                     }
 166                 }
 167                 if( !p->si.shmaddr )
 168                 {
 169                     GDI_FreeObject( hbitmap );
 170                     hbitmap = 0;
 171                 }
 172             }
 173             GDI_HEAP_UNLOCK( hbitmap );
 174             return hbitmap;
 175         }
 176     }
 177 #endif
 178   }
 179   return 0;
 180 }
 181
 182 /***********************************************************************
 183  *  WinGGetDIBPointer   (WING.1004)
 184  */
 185 SEGPTR WINAPI WinGGetDIBPointer16(HBITMAP16 hWinGBitmap, BITMAPINFO* bmpi)
 186 {
 187 #ifdef PRELIMINARY_WING16_SUPPORT
 188   BITMAPOBJ*    bmp = (BITMAPOBJ *) GDI_GetObjPtr( hWinGBitmap, BITMAP_MAGIC );
 189
 190   if( bmp )
 191   {
 192     __ShmBitmapCtl* p = (__ShmBitmapCtl*)bmp->bitmap.bmBits;
 193     if( p )
 194     {
 195       if( bmpi ) memcpy( bmpi, &__bmpiWinG, sizeof(BITMAPINFOHEADER));
 196       GDI_HEAP_UNLOCK( hWinGBitmap );
 197       return p->bits;
 198     }
 199   }
 200 #endif
 201   return (SEGPTR)NULL;
 202 }
 203
 204 /***********************************************************************
 205  *  WinGSetDIBColorTable   (WING.1004)
 206  */
 207 UINT16 WINAPI WinGSetDIBColorTable16(HDC16 hWinGDC, UINT16 start, UINT16 num,
 208                                      RGBQUAD* pColor)
 209 {
 210         FIXME(wing,"(%x,%d,%d,%p): empty stub!\n",hWinGDC,start,num,pColor);
 211         return num;
 212 }
 213
 214 /***********************************************************************
 215  *  WinGGetDIBColorTable16   (WING.1005)
 216  */
 217 UINT16 WINAPI WinGGetDIBColorTable16(HDC16 winDC, UINT16 start,
 218                                      UINT16 num, RGBQUAD* colors)
 219 {
 220         FIXME(wing,"(%x,%d,%d,%p): empty stub!\n",winDC,start,num,colors);
 221         return 0;
 222 }
 223
 224 /***********************************************************************
 225  *  WinGCreateHalfTonePalette16   (WING.1007)
 226  */
 227 HPALETTE16 WINAPI WinGCreateHalfTonePalette16(void)
 228 {
 229         FIXME(wing,"(void): empty stub!\n");
 230         return 0;
 231 }
 232
 233 /***********************************************************************
 234  *  WinGCreateHalfToneBrush16   (WING.1008)
 235  */
 236 HPALETTE16 WINAPI WinGCreateHalfToneBrush16(HDC16 winDC, COLORREF col,
 237                                             WING_DITHER_TYPE type)
 238 {
 239         FIXME(wing,"(...): empty stub!\n");
 240         return 0;
 241 }
 242
 243 /***********************************************************************
 244  *  WinGStretchBlt16   (WING.1009)
 245  */
 246 BOOL16 WINAPI WinGStretchBlt16(HDC16 destDC, INT16 xDest, INT16 yDest,
 247                                INT16 widDest, INT16 heiDest,
 248                                HDC16 srcDC, INT16 xSrc, INT16 ySrc,
 249                                INT16 widSrc, INT16 heiSrc)
 250 {
 251
 252         return StretchBlt16(destDC, xDest, yDest, widDest, heiDest, srcDC, xSrc, ySrc, widSrc, heiSrc, SRCCOPY);
 253 }
 254
 255 /***********************************************************************
 256  *  WinGBitBlt16   (WING.1010)
 257  */
 258 BOOL16 WINAPI WinGBitBlt16(HDC16 destDC, INT16 xDest, INT16 yDest,
 259                            INT16 widDest, INT16 heiDest, HDC16 srcDC,
 260                            INT16 xSrc, INT16 ySrc)
 261 {
 262     /* destDC is a display DC, srcDC is a memory DC */
 263
 264     DC *dcDst, *dcSrc;
 265
 266     if (!(dcDst = (DC *)GDI_GetObjPtr( destDC, DC_MAGIC ))) return FALSE;
 267     if (!(dcSrc = (DC *) GDI_GetObjPtr( srcDC, DC_MAGIC ))) return FALSE;
 268
 269     if (dcDst->w.flags & DC_DIRTY) CLIPPING_UpdateGCRegion( dcDst );
 270
 271     xSrc    = dcSrc->w.DCOrgX + XLPTODP( dcSrc, xSrc );
 272     ySrc    = dcSrc->w.DCOrgY + YLPTODP( dcSrc, ySrc );
 273     xDest   = dcDst->w.DCOrgX + XLPTODP( dcDst, xDest );
 274     yDest   = dcDst->w.DCOrgY + YLPTODP( dcDst, yDest );
 275     widDest = widDest * dcDst->vportExtX / dcDst->wndExtX;
 276     heiDest = heiDest * dcDst->vportExtY / dcDst->wndExtY;
 277
 278     TSXSetFunction( display, dcDst->u.x.gc, GXcopy );
 279     TSXCopyArea( display, dcSrc->u.x.drawable,
 280                dcDst->u.x.drawable, dcDst->u.x.gc,
 281                xSrc, ySrc, widDest, heiDest, xDest, yDest );
 282     return TRUE;
 283 }
 284