gdi32: Use a common helper for emf StretchBlt and AlphaBlend.
Signed-off-by: Zhiyi Zhang <zzhang@codeweavers.com> Signed-off-by: Huw Davies <huw@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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@ -27,15 +27,17 @@
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#include "enhmetafiledrv.h"
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#include "enhmetafiledrv.h"
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#include "wine/debug.h"
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#include "wine/debug.h"
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BOOL CDECL EMFDRV_AlphaBlend( PHYSDEV dev_dst, struct bitblt_coords *dst,
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/* Generate an EMRBITBLT, EMRSTRETCHBLT or EMRALPHABLEND record depending on the type parameter */
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PHYSDEV dev_src, struct bitblt_coords *src, BLENDFUNCTION func )
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static BOOL emfdrv_stretchblt( PHYSDEV dev_dst, struct bitblt_coords *dst, PHYSDEV dev_src,
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struct bitblt_coords *src, DWORD rop, DWORD type )
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{
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{
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unsigned char src_buffer[FIELD_OFFSET(BITMAPINFO, bmiColors[256])];
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unsigned char src_buffer[FIELD_OFFSET(BITMAPINFO, bmiColors[256])];
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BITMAPINFO *src_info = (BITMAPINFO *)src_buffer;
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BITMAPINFO *src_info = (BITMAPINFO *)src_buffer;
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UINT bits_size, bmi_size, emr_size, size, bpp;
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UINT bits_size, bmi_size, emr_size, size, bpp;
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EMRSTRETCHBLT *emr_stretchblt;
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struct gdi_image_bits bits;
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struct gdi_image_bits bits;
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EMRALPHABLEND *emr;
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BITMAPINFO *bmi;
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BITMAPINFO *bmi;
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EMRBITBLT *emr;
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DC *dc_src;
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DC *dc_src;
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DWORD err;
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DWORD err;
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BOOL ret = FALSE;
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BOOL ret = FALSE;
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@ -56,14 +58,15 @@ BOOL CDECL EMFDRV_AlphaBlend( PHYSDEV dev_dst, struct bitblt_coords *dst,
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bmi_size = sizeof(BITMAPINFOHEADER) + 3 * sizeof(RGBQUAD);
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bmi_size = sizeof(BITMAPINFOHEADER) + 3 * sizeof(RGBQUAD);
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else
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else
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bmi_size = sizeof(BITMAPINFOHEADER);
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bmi_size = sizeof(BITMAPINFOHEADER);
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emr_size = sizeof(EMRALPHABLEND);
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/* EMRSTRETCHBLT and EMRALPHABLEND have the same structure */
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emr_size = type == EMR_BITBLT ? sizeof(EMRBITBLT) : sizeof(EMRSTRETCHBLT);
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bits_size = src_info->bmiHeader.biSizeImage;
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bits_size = src_info->bmiHeader.biSizeImage;
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size = emr_size + bmi_size + bits_size;
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size = emr_size + bmi_size + bits_size;
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emr = HeapAlloc(GetProcessHeap(), 0, size);
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emr = HeapAlloc(GetProcessHeap(), 0, size);
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if (!emr) goto err;
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if (!emr) goto err;
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emr->emr.iType = EMR_ALPHABLEND;
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emr->emr.iType = type;
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emr->emr.nSize = size;
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emr->emr.nSize = size;
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emr->rclBounds.left = dst->log_x;
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emr->rclBounds.left = dst->log_x;
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emr->rclBounds.top = dst->log_y;
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emr->rclBounds.top = dst->log_y;
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@ -75,9 +78,13 @@ BOOL CDECL EMFDRV_AlphaBlend( PHYSDEV dev_dst, struct bitblt_coords *dst,
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emr->cyDest = dst->log_height;
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emr->cyDest = dst->log_height;
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emr->xSrc = src->log_x;
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emr->xSrc = src->log_x;
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emr->ySrc = src->log_y;
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emr->ySrc = src->log_y;
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emr->cxSrc = src->log_width;
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if (type == EMR_STRETCHBLT || type == EMR_ALPHABLEND)
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emr->cySrc = src->log_height;
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{
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emr->dwRop = *(DWORD *)&func;
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emr_stretchblt = (EMRSTRETCHBLT *)emr;
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emr_stretchblt->cxSrc = src->log_width;
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emr_stretchblt->cySrc = src->log_height;
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}
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emr->dwRop = rop;
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GetTransform(dev_src->hdc, 0x204, &emr->xformSrc);
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GetTransform(dev_src->hdc, 0x204, &emr->xformSrc);
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emr->crBkColorSrc = GetBkColor(dev_src->hdc);
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emr->crBkColorSrc = GetBkColor(dev_src->hdc);
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emr->iUsageSrc = DIB_RGB_COLORS;
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emr->iUsageSrc = DIB_RGB_COLORS;
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@ -115,6 +122,12 @@ err:
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return ret;
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return ret;
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}
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}
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BOOL CDECL EMFDRV_AlphaBlend( PHYSDEV dev_dst, struct bitblt_coords *dst,
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PHYSDEV dev_src, struct bitblt_coords *src, BLENDFUNCTION func )
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{
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return emfdrv_stretchblt(dev_dst, dst, dev_src, src, *(DWORD *)&func, EMR_ALPHABLEND);
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}
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BOOL CDECL EMFDRV_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
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BOOL CDECL EMFDRV_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
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{
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{
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EMRBITBLT emr;
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EMRBITBLT emr;
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@ -155,106 +168,10 @@ BOOL CDECL EMFDRV_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
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BOOL CDECL EMFDRV_StretchBlt( PHYSDEV devDst, struct bitblt_coords *dst,
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BOOL CDECL EMFDRV_StretchBlt( PHYSDEV devDst, struct bitblt_coords *dst,
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PHYSDEV devSrc, struct bitblt_coords *src, DWORD rop )
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PHYSDEV devSrc, struct bitblt_coords *src, DWORD rop )
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{
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{
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BOOL ret;
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PEMRBITBLT pEMR;
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UINT emrSize;
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UINT bmiSize;
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UINT bitsSize;
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UINT size;
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BITMAP BM;
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WORD nBPP = 0;
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LPBITMAPINFOHEADER lpBmiH;
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HBITMAP hBitmap = NULL;
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DWORD emrType;
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if (devSrc->funcs == devDst->funcs) return FALSE; /* can't use a metafile DC as source */
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if (src->log_width == dst->log_width && src->log_height == dst->log_height)
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if (src->log_width == dst->log_width && src->log_height == dst->log_height)
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{
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return emfdrv_stretchblt(devDst, dst, devSrc, src, rop, EMR_BITBLT);
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emrType = EMR_BITBLT;
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emrSize = sizeof(EMRBITBLT);
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}
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else
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else
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{
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return emfdrv_stretchblt(devDst, dst, devSrc, src, rop, EMR_STRETCHBLT);
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emrType = EMR_STRETCHBLT;
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emrSize = sizeof(EMRSTRETCHBLT);
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}
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hBitmap = GetCurrentObject(devSrc->hdc, OBJ_BITMAP);
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if(sizeof(BITMAP) != GetObjectW(hBitmap, sizeof(BITMAP), &BM))
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return FALSE;
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nBPP = BM.bmPlanes * BM.bmBitsPixel;
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if(nBPP > 8) nBPP = 24; /* FIXME Can't get 16bpp to work for some reason */
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bitsSize = get_dib_stride( BM.bmWidth, nBPP ) * BM.bmHeight;
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bmiSize = sizeof(BITMAPINFOHEADER) +
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(nBPP <= 8 ? 1 << nBPP : 0) * sizeof(RGBQUAD);
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size = emrSize + bmiSize + bitsSize;
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pEMR = HeapAlloc(GetProcessHeap(), 0, size);
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if (!pEMR) return FALSE;
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/* Initialize EMR */
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pEMR->emr.iType = emrType;
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pEMR->emr.nSize = size;
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pEMR->rclBounds.left = dst->log_x;
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pEMR->rclBounds.top = dst->log_y;
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pEMR->rclBounds.right = dst->log_x + dst->log_width - 1;
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pEMR->rclBounds.bottom = dst->log_y + dst->log_height - 1;
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pEMR->xDest = dst->log_x;
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pEMR->yDest = dst->log_y;
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pEMR->cxDest = dst->log_width;
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pEMR->cyDest = dst->log_height;
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pEMR->dwRop = rop;
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pEMR->xSrc = src->log_x;
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pEMR->ySrc = src->log_y;
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GetTransform(devSrc->hdc, 0x204, &pEMR->xformSrc);
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pEMR->crBkColorSrc = GetBkColor(devSrc->hdc);
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pEMR->iUsageSrc = DIB_RGB_COLORS;
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pEMR->offBmiSrc = emrSize;
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pEMR->offBitsSrc = emrSize + bmiSize;
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pEMR->cbBmiSrc = bmiSize;
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pEMR->cbBitsSrc = bitsSize;
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if (emrType == EMR_STRETCHBLT)
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{
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PEMRSTRETCHBLT pEMRStretch = (PEMRSTRETCHBLT)pEMR;
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pEMRStretch->cxSrc = src->log_width;
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pEMRStretch->cySrc = src->log_height;
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}
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/* Initialize BITMAPINFO structure */
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lpBmiH = (LPBITMAPINFOHEADER)((BYTE*)pEMR + pEMR->offBmiSrc);
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lpBmiH->biSize = sizeof(BITMAPINFOHEADER);
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lpBmiH->biWidth = BM.bmWidth;
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lpBmiH->biHeight = BM.bmHeight;
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lpBmiH->biPlanes = BM.bmPlanes;
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lpBmiH->biBitCount = nBPP;
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/* Assume the bitmap isn't compressed and set the BI_RGB flag. */
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lpBmiH->biCompression = BI_RGB;
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lpBmiH->biSizeImage = bitsSize;
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lpBmiH->biYPelsPerMeter = 0;
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lpBmiH->biXPelsPerMeter = 0;
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lpBmiH->biClrUsed = nBPP <= 8 ? 1 << nBPP : 0;
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/* Set biClrImportant to 0, indicating that all of the
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device colors are important. */
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lpBmiH->biClrImportant = 0;
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/* Initialize bitmap bits */
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if (GetDIBits(devSrc->hdc, hBitmap, 0, (UINT)lpBmiH->biHeight,
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(BYTE*)pEMR + pEMR->offBitsSrc,
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(LPBITMAPINFO)lpBmiH, DIB_RGB_COLORS))
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{
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ret = EMFDRV_WriteRecord(devDst, (EMR*)pEMR);
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if (ret) EMFDRV_UpdateBBox(devDst, &(pEMR->rclBounds));
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}
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else
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ret = FALSE;
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HeapFree( GetProcessHeap(), 0, pEMR);
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return ret;
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}
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}
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INT CDECL EMFDRV_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst, INT heightDst,
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INT CDECL EMFDRV_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst, INT heightDst,
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