dlls/gdi32/mfdrv/bitblt.c

   1 /*
   2  * GDI bit-blit operations
   3  *
   4  * Copyright 1993, 1994  Alexandre Julliard
   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 <string.h>
  22
  23 #include "mfdrv/metafiledrv.h"
  24 #include "wine/debug.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(metafile);
  27
  28 /***********************************************************************
  29  *           MFDRV_PatBlt
  30  */
  31 BOOL MFDRV_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
  32 {
  33     MFDRV_MetaParam6( dev, META_PATBLT, dst->log_x, dst->log_y, dst->log_width, dst->log_height,
  34                       HIWORD(rop), LOWORD(rop) );
  35     return TRUE;
  36 }
  37
  38
  39 /***********************************************************************
  40  *           MFDRV_StretchBlt
  41  * this function contains TWO ways for processing StretchBlt in metafiles,
  42  * decide between rdFunction values  META_STRETCHBLT or META_DIBSTRETCHBLT
  43  * via #define STRETCH_VIA_DIB
  44  */
  45 #define STRETCH_VIA_DIB
  46
  47 BOOL MFDRV_StretchBlt( PHYSDEV devDst, struct bitblt_coords *dst,
  48                        PHYSDEV devSrc, struct bitblt_coords *src, DWORD rop )
  49 {
  50     BOOL ret;
  51     DWORD len;
  52     METARECORD *mr;
  53     BITMAP BM;
  54 #ifdef STRETCH_VIA_DIB
  55     LPBITMAPINFOHEADER lpBMI;
  56     WORD nBPP;
  57 #endif
  58     HBITMAP hBitmap = GetCurrentObject(devSrc->hdc, OBJ_BITMAP);
  59
  60     if (devSrc->funcs == devDst->funcs) return FALSE;  /* can't use a metafile DC as source */
  61
  62     if (GetObjectW(hBitmap, sizeof(BITMAP), &BM) != sizeof(BITMAP))
  63     {
  64         WARN("bad bitmap object %p passed for hdc %p\n", hBitmap, devSrc->hdc);
  65         return FALSE;
  66     }
  67 #ifdef STRETCH_VIA_DIB
  68     nBPP = BM.bmPlanes * BM.bmBitsPixel;
  69     if(nBPP > 8) nBPP = 24; /* FIXME Can't get 16bpp to work for some reason */
  70     len = sizeof(METARECORD) + 10 * sizeof(INT16)
  71             + sizeof(BITMAPINFOHEADER) + (nBPP <= 8 ? 1 << nBPP: 0) * sizeof(RGBQUAD)
  72               + get_dib_stride( BM.bmWidth, nBPP ) * BM.bmHeight;
  73     if (!(mr = HeapAlloc( GetProcessHeap(), 0, len)))
  74         return FALSE;
  75     mr->rdFunction = META_DIBSTRETCHBLT;
  76     lpBMI=(LPBITMAPINFOHEADER)(mr->rdParm+10);
  77     lpBMI->biSize      = sizeof(BITMAPINFOHEADER);
  78     lpBMI->biWidth     = BM.bmWidth;
  79     lpBMI->biHeight    = BM.bmHeight;
  80     lpBMI->biPlanes    = 1;
  81     lpBMI->biBitCount  = nBPP;
  82     lpBMI->biSizeImage = get_dib_image_size( (BITMAPINFO *)lpBMI );
  83     lpBMI->biClrUsed   = nBPP <= 8 ? 1 << nBPP : 0;
  84     lpBMI->biCompression = BI_RGB;
  85     lpBMI->biXPelsPerMeter = MulDiv(GetDeviceCaps(devSrc->hdc,LOGPIXELSX),3937,100);
  86     lpBMI->biYPelsPerMeter = MulDiv(GetDeviceCaps(devSrc->hdc,LOGPIXELSY),3937,100);
  87     lpBMI->biClrImportant  = 0;                          /* 1 meter  = 39.37 inch */
  88
  89     TRACE("MF_StretchBltViaDIB->len = %d  rop=%x  PixYPM=%d Caps=%d\n",
  90           len,rop,lpBMI->biYPelsPerMeter,GetDeviceCaps(devSrc->hdc, LOGPIXELSY));
  91
  92     if (GetDIBits(devSrc->hdc, hBitmap, 0, (UINT)lpBMI->biHeight,
  93                   (LPSTR)lpBMI + get_dib_info_size( (BITMAPINFO *)lpBMI, DIB_RGB_COLORS ),
  94                   (LPBITMAPINFO)lpBMI, DIB_RGB_COLORS))
  95 #else
  96     len = sizeof(METARECORD) + 15 * sizeof(INT16) + BM.bmWidthBytes * BM.bmHeight;
  97     if (!(mr = HeapAlloc( GetProcessHeap(), 0, len )))
  98         return FALSE;
  99     mr->rdFunction = META_STRETCHBLT;
 100     *(mr->rdParm +10) = BM.bmWidth;
 101     *(mr->rdParm +11) = BM.bmHeight;
 102     *(mr->rdParm +12) = BM.bmWidthBytes;
 103     *(mr->rdParm +13) = BM.bmPlanes;
 104     *(mr->rdParm +14) = BM.bmBitsPixel;
 105     TRACE("len = %ld  rop=%lx\n", len, rop);
 106     if (GetBitmapBits( hBitmap, BM.bmWidthBytes * BM.bmHeight, mr->rdParm + 15))
 107 #endif
 108     {
 109       mr->rdSize = len / sizeof(INT16);
 110       *(mr->rdParm) = LOWORD(rop);
 111       *(mr->rdParm + 1) = HIWORD(rop);
 112       *(mr->rdParm + 2) = src->log_height;
 113       *(mr->rdParm + 3) = src->log_width;
 114       *(mr->rdParm + 4) = src->log_y;
 115       *(mr->rdParm + 5) = src->log_x;
 116       *(mr->rdParm + 6) = dst->log_height;
 117       *(mr->rdParm + 7) = dst->log_width;
 118       *(mr->rdParm + 8) = dst->log_y;
 119       *(mr->rdParm + 9) = dst->log_x;
 120       ret = MFDRV_WriteRecord( devDst, mr, mr->rdSize * 2);
 121     }
 122     else
 123         ret = FALSE;
 124     HeapFree( GetProcessHeap(), 0, mr);
 125     return ret;
 126 }
 127
 128
 129 /***********************************************************************
 130  *           MFDRV_StretchDIBits
 131  */
 132 INT MFDRV_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst,
 133                          INT heightDst, INT xSrc, INT ySrc, INT widthSrc,
 134                          INT heightSrc, const void *bits,
 135                          BITMAPINFO *info, UINT wUsage, DWORD dwRop )
 136 {
 137     DWORD infosize = get_dib_info_size(info, wUsage);
 138     DWORD len = sizeof(METARECORD) + 10 * sizeof(WORD) + infosize + info->bmiHeader.biSizeImage;
 139     METARECORD *mr = HeapAlloc( GetProcessHeap(), 0, len );
 140     if(!mr) return 0;
 141
 142     mr->rdSize = len / 2;
 143     mr->rdFunction = META_STRETCHDIB;
 144     mr->rdParm[0] = LOWORD(dwRop);
 145     mr->rdParm[1] = HIWORD(dwRop);
 146     mr->rdParm[2] = wUsage;
 147     mr->rdParm[3] = (INT16)heightSrc;
 148     mr->rdParm[4] = (INT16)widthSrc;
 149     mr->rdParm[5] = (INT16)ySrc;
 150     mr->rdParm[6] = (INT16)xSrc;
 151     mr->rdParm[7] = (INT16)heightDst;
 152     mr->rdParm[8] = (INT16)widthDst;
 153     mr->rdParm[9] = (INT16)yDst;
 154     mr->rdParm[10] = (INT16)xDst;
 155     memcpy(mr->rdParm + 11, info, infosize);
 156     memcpy(mr->rdParm + 11 + infosize / 2, bits, info->bmiHeader.biSizeImage);
 157     MFDRV_WriteRecord( dev, mr, mr->rdSize * 2 );
 158     HeapFree( GetProcessHeap(), 0, mr );
 159     return heightSrc;
 160 }
 161
 162
 163 /***********************************************************************
 164  *           MFDRV_SetDIBitsToDeivce
 165  */
 166 INT MFDRV_SetDIBitsToDevice( PHYSDEV dev, INT xDst, INT yDst, DWORD cx,
 167                              DWORD cy, INT xSrc, INT ySrc, UINT startscan,
 168                              UINT lines, LPCVOID bits, BITMAPINFO *info, UINT coloruse )
 169
 170 {
 171     DWORD infosize = get_dib_info_size(info, coloruse);
 172     DWORD len = sizeof(METARECORD) + 8 * sizeof(WORD) + infosize + info->bmiHeader.biSizeImage;
 173     METARECORD *mr = HeapAlloc( GetProcessHeap(), 0, len );
 174     if(!mr) return 0;
 175
 176     mr->rdSize = len / 2;
 177     mr->rdFunction = META_SETDIBTODEV;
 178     mr->rdParm[0] = coloruse;
 179     mr->rdParm[1] = lines;
 180     mr->rdParm[2] = startscan;
 181     mr->rdParm[3] = (INT16)ySrc;
 182     mr->rdParm[4] = (INT16)xSrc;
 183     mr->rdParm[5] = (INT16)cy;
 184     mr->rdParm[6] = (INT16)cx;
 185     mr->rdParm[7] = (INT16)yDst;
 186     mr->rdParm[8] = (INT16)xDst;
 187     memcpy(mr->rdParm + 9, info, infosize);
 188     memcpy(mr->rdParm + 9 + infosize / 2, bits, info->bmiHeader.biSizeImage);
 189     MFDRV_WriteRecord( dev, mr, mr->rdSize * 2 );
 190     HeapFree( GetProcessHeap(), 0, mr );
 191     return lines;
 192 }