Implemented StretchDIBits in the EMF code.

dlls/gdi/enhmfdrv/bitblt.c

@@ -28,8 +28,8 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(enhmetafile);
 
-extern BOOL EMFDRV_PatBlt( PHYSDEV dev, INT left, INT top,
-			   INT width, INT height, DWORD rop )
+BOOL EMFDRV_PatBlt( PHYSDEV dev, INT left, INT top,
+                    INT width, INT height, DWORD rop )
 {
     EMRBITBLT emr;
     BOOL ret;
@@ -65,3 +65,98 @@ extern BOOL EMFDRV_PatBlt( PHYSDEV dev, INT left, INT top,
         EMFDRV_UpdateBBox( dev, &emr.rclBounds );
     return ret;
 }
+
+
+INT EMFDRV_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst,
+                                      INT heightDst, INT xSrc, INT ySrc,
+                                      INT widthSrc, INT heightSrc,
+                                      const void *bits, const BITMAPINFO *info,
+                                      UINT wUsage, DWORD dwRop )
+{
+    EMRSTRETCHDIBITS *emr;
+    BOOL ret;
+    UINT bmi_size=0, bits_size, emr_size;
+    UINT width_bytes;
+
+    /* calculate the size of the bits we need to store */
+    switch(info->bmiHeader.biBitCount)
+    {
+    case 1:
+         width_bytes = (info->bmiHeader.biWidth+7)/8;
+         break;
+    case 4:
+         width_bytes = (info->bmiHeader.biWidth+1)/2;
+         break;
+    case 8:
+         width_bytes = info->bmiHeader.biWidth;
+         break;
+    case 16:
+         width_bytes = info->bmiHeader.biWidth*2;
+         break;
+    case 24:
+         width_bytes = info->bmiHeader.biWidth*3;
+         break;
+    case 32:
+         width_bytes = info->bmiHeader.biWidth*4;
+         break;
+    default:
+         FIXME("bi.biCount has and unknown value (%d)\n", info->bmiHeader.biBitCount);
+         return FALSE;
+    }
+    width_bytes = ((width_bytes+3)/4) << 2;
+    bits_size = width_bytes * info->bmiHeader.biHeight;
+
+    /* calculate the size of the colour table */
+    bmi_size = sizeof (BITMAPINFO);
+    if ( info->bmiHeader.biBitCount <= 8 )
+    {
+         UINT num_colors = info->bmiHeader.biClrUsed;
+         if ( num_colors == 0 )
+              num_colors = (1<<info->bmiHeader.biBitCount);
+         bmi_size += num_colors*sizeof(RGBQUAD);
+    }
+
+    emr_size = sizeof (EMRSTRETCHDIBITS) + bmi_size + bits_size;
+    emr = HeapAlloc(GetProcessHeap(), 0, emr_size );
+
+    /* write a bitmap info header (with colours) to the record */
+    memcpy( &emr[1], info, bmi_size);
+
+    /* write bitmap bits to the record */
+    memcpy ( ( (BYTE *) (&emr[1]) ) + bmi_size, bits, bits_size);
+
+    /* fill in the EMR header at the front of our piece of memory */
+    emr->emr.iType = EMR_STRETCHDIBITS;
+    emr->emr.nSize = emr_size;
+
+    emr->xDest     = xDst;
+    emr->yDest     = yDst;
+    emr->cxDest    = widthDst;
+    emr->cyDest    = heightDst;
+    emr->dwRop     = dwRop;
+    emr->xSrc      = xSrc; /* FIXME: only save the piece of the bitmap needed */
+    emr->ySrc      = ySrc;
+
+    emr->iUsageSrc    = DIB_RGB_COLORS;
+    emr->offBmiSrc    = sizeof (EMRSTRETCHDIBITS);
+    emr->cbBmiSrc     = bmi_size;
+    emr->offBitsSrc   = emr->offBmiSrc + bmi_size; 
+    emr->cbBitsSrc    = bits_size;
+
+    emr->cxSrc = widthSrc;
+    emr->cySrc = heightSrc;
+
+    emr->rclBounds.left   = xDst;
+    emr->rclBounds.top    = yDst;
+    emr->rclBounds.right  = xDst + widthDst;
+    emr->rclBounds.bottom = yDst + heightDst;
+
+    /* save the record we just created */
+    ret = EMFDRV_WriteRecord( dev, &emr->emr );
+    if(ret)
+        EMFDRV_UpdateBBox( dev, &emr->rclBounds );
+
+    HeapFree(GetProcessHeap(), 0, emr);
+
+    return ret;
+}

dlls/gdi/enhmfdrv/init.c

@@ -136,11 +136,11 @@ static const DC_FUNCTIONS EMFDRV_Funcs =
     NULL,                            /* pStartDoc */
     NULL,                            /* pStartPage */
     NULL,                            /* pStretchBlt */
-    NULL,                            /* pStretchDIBits */
+    EMFDRV_StretchDIBits,            /* pStretchDIBits */
     EMFDRV_StrokeAndFillPath,        /* pStrokeAndFillPath */
     EMFDRV_StrokePath,               /* pStrokePath */
     NULL,                            /* pSwapBuffers */
-    EMFDRV_WidenPath                 /* pWiddenPath */
+    EMFDRV_WidenPath                 /* pWidenPath */
 };