Zhiyi Zhang : gdi32: Use a common helper for emf StretchBlt and AlphaBlend.
Module: wine Branch: master Commit: dadc6fd29b8bfeb94e9f3954a6d65473ab1d2ba6 URL: https://source.winehq.org/git/wine.git/?a=commit;h=dadc6fd29b8bfeb94e9f3954a... Author: Zhiyi Zhang <zzhang(a)codeweavers.com> Date: Mon May 31 16:13:06 2021 +0800 gdi32: Use a common helper for emf StretchBlt and AlphaBlend. Signed-off-by: Zhiyi Zhang <zzhang(a)codeweavers.com> Signed-off-by: Huw Davies <huw(a)codeweavers.com> Signed-off-by: Alexandre Julliard <julliard(a)winehq.org> --- dlls/gdi32/enhmfdrv/bitblt.c | 129 ++++++++----------------------------------- 1 file changed, 23 insertions(+), 106 deletions(-) diff --git a/dlls/gdi32/enhmfdrv/bitblt.c b/dlls/gdi32/enhmfdrv/bitblt.c index 597a6110abd..f15acaa1f14 100644 --- a/dlls/gdi32/enhmfdrv/bitblt.c +++ b/dlls/gdi32/enhmfdrv/bitblt.c @@ -27,15 +27,17 @@ #include "enhmetafiledrv.h" #include "wine/debug.h" -BOOL CDECL EMFDRV_AlphaBlend( PHYSDEV dev_dst, struct bitblt_coords *dst, - PHYSDEV dev_src, struct bitblt_coords *src, BLENDFUNCTION func ) +/* Generate an EMRBITBLT, EMRSTRETCHBLT or EMRALPHABLEND record depending on the type parameter */ +static BOOL emfdrv_stretchblt( PHYSDEV dev_dst, struct bitblt_coords *dst, PHYSDEV dev_src, + struct bitblt_coords *src, DWORD rop, DWORD type ) { unsigned char src_buffer[FIELD_OFFSET(BITMAPINFO, bmiColors[256])]; BITMAPINFO *src_info = (BITMAPINFO *)src_buffer; UINT bits_size, bmi_size, emr_size, size, bpp; + EMRSTRETCHBLT *emr_stretchblt; struct gdi_image_bits bits; - EMRALPHABLEND *emr; BITMAPINFO *bmi; + EMRBITBLT *emr; DC *dc_src; DWORD err; BOOL ret = FALSE; @@ -56,14 +58,15 @@ BOOL CDECL EMFDRV_AlphaBlend( PHYSDEV dev_dst, struct bitblt_coords *dst, bmi_size = sizeof(BITMAPINFOHEADER) + 3 * sizeof(RGBQUAD); else bmi_size = sizeof(BITMAPINFOHEADER); - emr_size = sizeof(EMRALPHABLEND); + /* EMRSTRETCHBLT and EMRALPHABLEND have the same structure */ + emr_size = type == EMR_BITBLT ? sizeof(EMRBITBLT) : sizeof(EMRSTRETCHBLT); bits_size = src_info->bmiHeader.biSizeImage; size = emr_size + bmi_size + bits_size; emr = HeapAlloc(GetProcessHeap(), 0, size); if (!emr) goto err; - emr->emr.iType = EMR_ALPHABLEND; + emr->emr.iType = type; emr->emr.nSize = size; emr->rclBounds.left = dst->log_x; emr->rclBounds.top = dst->log_y; @@ -75,9 +78,13 @@ BOOL CDECL EMFDRV_AlphaBlend( PHYSDEV dev_dst, struct bitblt_coords *dst, emr->cyDest = dst->log_height; emr->xSrc = src->log_x; emr->ySrc = src->log_y; - emr->cxSrc = src->log_width; - emr->cySrc = src->log_height; - emr->dwRop = *(DWORD *)&func; + if (type == EMR_STRETCHBLT || type == EMR_ALPHABLEND) + { + emr_stretchblt = (EMRSTRETCHBLT *)emr; + emr_stretchblt->cxSrc = src->log_width; + emr_stretchblt->cySrc = src->log_height; + } + emr->dwRop = rop; GetTransform(dev_src->hdc, 0x204, &emr->xformSrc); emr->crBkColorSrc = GetBkColor(dev_src->hdc); emr->iUsageSrc = DIB_RGB_COLORS; @@ -115,6 +122,12 @@ err: return ret; } +BOOL CDECL EMFDRV_AlphaBlend( PHYSDEV dev_dst, struct bitblt_coords *dst, + PHYSDEV dev_src, struct bitblt_coords *src, BLENDFUNCTION func ) +{ + return emfdrv_stretchblt(dev_dst, dst, dev_src, src, *(DWORD *)&func, EMR_ALPHABLEND); +} + BOOL CDECL EMFDRV_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop ) { EMRBITBLT emr; @@ -155,106 +168,10 @@ BOOL CDECL EMFDRV_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop ) BOOL CDECL EMFDRV_StretchBlt( PHYSDEV devDst, struct bitblt_coords *dst, PHYSDEV devSrc, struct bitblt_coords *src, DWORD rop ) { - BOOL ret; - PEMRBITBLT pEMR; - UINT emrSize; - UINT bmiSize; - UINT bitsSize; - UINT size; - BITMAP BM; - WORD nBPP = 0; - LPBITMAPINFOHEADER lpBmiH; - HBITMAP hBitmap = NULL; - DWORD emrType; - - if (devSrc->funcs == devDst->funcs) return FALSE; /* can't use a metafile DC as source */ - if (src->log_width == dst->log_width && src->log_height == dst->log_height) - { - emrType = EMR_BITBLT; - emrSize = sizeof(EMRBITBLT); - } - else - { - emrType = EMR_STRETCHBLT; - emrSize = sizeof(EMRSTRETCHBLT); - } - - hBitmap = GetCurrentObject(devSrc->hdc, OBJ_BITMAP); - - if(sizeof(BITMAP) != GetObjectW(hBitmap, sizeof(BITMAP), &BM)) - return FALSE; - - nBPP = BM.bmPlanes * BM.bmBitsPixel; - if(nBPP > 8) nBPP = 24; /* FIXME Can't get 16bpp to work for some reason */ - bitsSize = get_dib_stride( BM.bmWidth, nBPP ) * BM.bmHeight; - bmiSize = sizeof(BITMAPINFOHEADER) + - (nBPP <= 8 ? 1 << nBPP : 0) * sizeof(RGBQUAD); - - size = emrSize + bmiSize + bitsSize; - - pEMR = HeapAlloc(GetProcessHeap(), 0, size); - if (!pEMR) return FALSE; - - /* Initialize EMR */ - pEMR->emr.iType = emrType; - pEMR->emr.nSize = size; - pEMR->rclBounds.left = dst->log_x; - pEMR->rclBounds.top = dst->log_y; - pEMR->rclBounds.right = dst->log_x + dst->log_width - 1; - pEMR->rclBounds.bottom = dst->log_y + dst->log_height - 1; - pEMR->xDest = dst->log_x; - pEMR->yDest = dst->log_y; - pEMR->cxDest = dst->log_width; - pEMR->cyDest = dst->log_height; - pEMR->dwRop = rop; - pEMR->xSrc = src->log_x; - pEMR->ySrc = src->log_y; - GetTransform(devSrc->hdc, 0x204, &pEMR->xformSrc); - pEMR->crBkColorSrc = GetBkColor(devSrc->hdc); - pEMR->iUsageSrc = DIB_RGB_COLORS; - pEMR->offBmiSrc = emrSize; - pEMR->offBitsSrc = emrSize + bmiSize; - pEMR->cbBmiSrc = bmiSize; - pEMR->cbBitsSrc = bitsSize; - if (emrType == EMR_STRETCHBLT) - { - PEMRSTRETCHBLT pEMRStretch = (PEMRSTRETCHBLT)pEMR; - pEMRStretch->cxSrc = src->log_width; - pEMRStretch->cySrc = src->log_height; - } - - /* Initialize BITMAPINFO structure */ - lpBmiH = (LPBITMAPINFOHEADER)((BYTE*)pEMR + pEMR->offBmiSrc); - - lpBmiH->biSize = sizeof(BITMAPINFOHEADER); - lpBmiH->biWidth = BM.bmWidth; - lpBmiH->biHeight = BM.bmHeight; - lpBmiH->biPlanes = BM.bmPlanes; - lpBmiH->biBitCount = nBPP; - /* Assume the bitmap isn't compressed and set the BI_RGB flag. */ - lpBmiH->biCompression = BI_RGB; - lpBmiH->biSizeImage = bitsSize; - lpBmiH->biYPelsPerMeter = 0; - lpBmiH->biXPelsPerMeter = 0; - lpBmiH->biClrUsed = nBPP <= 8 ? 1 << nBPP : 0; - /* Set biClrImportant to 0, indicating that all of the - device colors are important. */ - lpBmiH->biClrImportant = 0; - - /* Initialize bitmap bits */ - if (GetDIBits(devSrc->hdc, hBitmap, 0, (UINT)lpBmiH->biHeight, - (BYTE*)pEMR + pEMR->offBitsSrc, - (LPBITMAPINFO)lpBmiH, DIB_RGB_COLORS)) - { - ret = EMFDRV_WriteRecord(devDst, (EMR*)pEMR); - if (ret) EMFDRV_UpdateBBox(devDst, &(pEMR->rclBounds)); - } + return emfdrv_stretchblt(devDst, dst, devSrc, src, rop, EMR_BITBLT); else - ret = FALSE; - - HeapFree( GetProcessHeap(), 0, pEMR); - return ret; + return emfdrv_stretchblt(devDst, dst, devSrc, src, rop, EMR_STRETCHBLT); } INT CDECL EMFDRV_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst, INT heightDst,
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Alexandre Julliard