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Implemented StretchDIBits in the EMF code.

This commit is contained in:
Mike McCormack 2003-05-19 18:49:52 +00:00 committed by Alexandre Julliard
parent 7faae4c5d5
commit 3b5708640c
2 changed files with 99 additions and 4 deletions
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99
dlls/gdi/enhmfdrv/bitblt.c
View File

@ -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;
}

4
dlls/gdi/enhmfdrv/init.c
View File

@ -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 */
};