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Implement playback of EMR_ALPHABLEND.

This commit is contained in:
Huw Davies 2005-10-31 21:04:18 +00:00 committed by Alexandre Julliard
parent 8f0c45b5c8
commit 063824dd22
2 changed files with 62 additions and 1 deletions
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42
dlls/gdi/enhmetafile.c
View File

@ -646,6 +646,7 @@ static BOOL emr_produces_output(int type)
case EMR_POLYTEXTOUTA: case EMR_POLYTEXTOUTA:
case EMR_POLYTEXTOUTW: case EMR_POLYTEXTOUTW:
case EMR_SMALLTEXTOUT: case EMR_SMALLTEXTOUT:
case EMR_ALPHABLEND:
case EMR_TRANSPARENTBLT: case EMR_TRANSPARENTBLT:
return TRUE; return TRUE;
default: default:
@ -1795,6 +1796,46 @@ BOOL WINAPI PlayEnhMetaFileRecord(
break; break;
} }
case EMR_ALPHABLEND:
{
PEMRALPHABLEND pAlphaBlend= (PEMRALPHABLEND)mr;
TRACE("EMR_ALPHABLEND: %ld, %ld %ldx%ld -> %ld, %ld %ldx%ld. blendfn %08lx offBitsSrc %ld\n",
pAlphaBlend->xSrc, pAlphaBlend->ySrc, pAlphaBlend->cxSrc, pAlphaBlend->cySrc,
pAlphaBlend->xDest, pAlphaBlend->yDest, pAlphaBlend->cxDest, pAlphaBlend->cyDest,
pAlphaBlend->dwRop, pAlphaBlend->offBitsSrc);
if(pAlphaBlend->offBmiSrc == 0) {
FIXME("EMR_ALPHABLEND: offBmiSrc == 0\n");
} else {
HDC hdcSrc = CreateCompatibleDC(hdc);
HBITMAP hBmp = 0, hBmpOld = 0;
BITMAPINFO *pbi = (BITMAPINFO *)((BYTE *)mr + pAlphaBlend->offBmiSrc);
BLENDFUNCTION blendfn;
void *bits;
SetWorldTransform(hdcSrc, &pAlphaBlend->xformSrc);
hBmp = CreateDIBSection(hdc, pbi, pAlphaBlend->iUsageSrc, &bits, NULL, 0);
memcpy(bits, (BYTE*)mr + pAlphaBlend->offBitsSrc, pAlphaBlend->cbBitsSrc);
hBmpOld = SelectObject(hdcSrc, hBmp);
blendfn.BlendOp = (pAlphaBlend->dwRop >> 24) & 0xff;
blendfn.BlendFlags = (pAlphaBlend->dwRop >> 16) & 0xff;
blendfn.SourceConstantAlpha = (pAlphaBlend->dwRop >> 8) & 0xff;
blendfn.AlphaFormat = (pAlphaBlend->dwRop) & 0xff;
GdiAlphaBlend(hdc, pAlphaBlend->xDest, pAlphaBlend->yDest, pAlphaBlend->cxDest, pAlphaBlend->cyDest,
hdcSrc, pAlphaBlend->xSrc, pAlphaBlend->ySrc, pAlphaBlend->cxSrc, pAlphaBlend->cySrc,
blendfn);
SelectObject(hdcSrc, hBmpOld);
DeleteObject(hBmp);
DeleteDC(hdcSrc);
}
break;
}
case EMR_MASKBLT: case EMR_MASKBLT:
{ {
PEMRMASKBLT pMaskBlt= (PEMRMASKBLT)mr; PEMRMASKBLT pMaskBlt= (PEMRMASKBLT)mr;
@ -2061,7 +2102,6 @@ BOOL WINAPI PlayEnhMetaFileRecord(
case EMR_COLORCORRECTPALETTE: case EMR_COLORCORRECTPALETTE:
case EMR_SETICMPROFILEA: case EMR_SETICMPROFILEA:
case EMR_SETICMPROFILEW: case EMR_SETICMPROFILEW:
case EMR_ALPHABLEND:
case EMR_TRANSPARENTBLT: case EMR_TRANSPARENTBLT:
case EMR_GRADIENTFILL: case EMR_GRADIENTFILL:
case EMR_SETLINKEDUFI: case EMR_SETLINKEDUFI:

21
include/wingdi.h
View File

@ -2581,6 +2581,27 @@ typedef struct {
LONG cySrc; LONG cySrc;
} EMRSTRETCHBLT, *PEMRSTRETCHBLT; } EMRSTRETCHBLT, *PEMRSTRETCHBLT;
typedef struct {
EMR emr;
RECTL rclBounds;
LONG xDest;
LONG yDest;
LONG cxDest;
LONG cyDest;
DWORD dwRop;
LONG xSrc;
LONG ySrc;
XFORM xformSrc;
COLORREF crBkColorSrc;
DWORD iUsageSrc;
DWORD offBmiSrc;
DWORD cbBmiSrc;
DWORD offBitsSrc;
DWORD cbBitsSrc;
LONG cxSrc;
LONG cySrc;
} EMRALPHABLEND, *PEMRALPHABLEND;
typedef struct { typedef struct {
EMR emr; EMR emr;
RECTL rclBounds; RECTL rclBounds;