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wine/dlls/gdi32/enhmfdrv/bitblt.c

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/*
* Enhanced MetaFile driver BitBlt functions
*
* Copyright 2002 Huw D M Davies for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "enhmetafiledrv.h"
#include "wine/debug.h"
BOOL CDECL EMFDRV_PatBlt( PHYSDEV dev, INT left, INT top,
INT width, INT height, DWORD rop )
{
EMRBITBLT emr;
BOOL ret;
emr.emr.iType = EMR_BITBLT;
emr.emr.nSize = sizeof(emr);
emr.rclBounds.left = left;
emr.rclBounds.top = top;
emr.rclBounds.right = left + width - 1;
emr.rclBounds.bottom = top + height - 1;
emr.xDest = left;
emr.yDest = top;
emr.cxDest = width;
emr.cyDest = height;
emr.dwRop = rop;
emr.xSrc = 0;
emr.ySrc = 0;
emr.xformSrc.eM11 = 1.0;
emr.xformSrc.eM12 = 0.0;
emr.xformSrc.eM21 = 0.0;
emr.xformSrc.eM22 = 1.0;
emr.xformSrc.eDx = 0.0;
emr.xformSrc.eDy = 0.0;
emr.crBkColorSrc = 0;
emr.iUsageSrc = 0;
emr.offBmiSrc = 0;
emr.cbBmiSrc = 0;
emr.offBitsSrc = 0;
emr.cbBitsSrc = 0;
ret = EMFDRV_WriteRecord( dev, &emr.emr );
if(ret)
EMFDRV_UpdateBBox( dev, &emr.rclBounds );
return ret;
}
/* Utilitarian function used by EMFDRV_BitBlt and EMFDRV_StretchBlt */
static BOOL EMFDRV_BitBlockTransfer(
PHYSDEV devDst, INT xDst, INT yDst, INT widthDst, INT heightDst,
PHYSDEV devSrc, INT xSrc, INT ySrc, INT widthSrc, INT heightSrc, DWORD rop,
DWORD emrType)
{
BOOL ret;
PEMRBITBLT pEMR;
UINT emrSize;
UINT bmiSize;
UINT bitsSize;
UINT size;
BITMAP BM;
WORD nBPP;
LPBITMAPINFOHEADER lpBmiH;
EMFDRV_PDEVICE* physDevSrc = (EMFDRV_PDEVICE*)devSrc;
HBITMAP hBitmap = GetCurrentObject(physDevSrc->hdc, OBJ_BITMAP);
if (emrType == EMR_BITBLT)
emrSize = sizeof(EMRBITBLT);
else if (emrType == EMR_STRETCHBLT)
emrSize = sizeof(EMRSTRETCHBLT);
else
return FALSE;
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 = DIB_GetDIBWidthBytes(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 = xDst;
pEMR->rclBounds.top = yDst;
pEMR->rclBounds.right = xDst + widthDst - 1;
pEMR->rclBounds.bottom = yDst + heightDst - 1;
pEMR->xDest = xDst;
pEMR->yDest = yDst;
pEMR->cxDest = widthDst;
pEMR->cyDest = heightDst;
pEMR->dwRop = rop;
pEMR->xSrc = xSrc;
pEMR->ySrc = ySrc;
pEMR->xformSrc.eM11 = 1.0; /** FIXME: */
pEMR->xformSrc.eM12 = 0.0; /** Setting default */
pEMR->xformSrc.eM21 = 0.0; /** value. */
pEMR->xformSrc.eM22 = 1.0; /** Where should we */
pEMR->xformSrc.eDx = 0.0; /** get that info */
pEMR->xformSrc.eDy = 0.0; /** ???? */
pEMR->crBkColorSrc = GetBkColor(physDevSrc->hdc);
pEMR->iUsageSrc = DIB_RGB_COLORS;
pEMR->offBmiSrc = emrSize;
pEMR->cbBmiSrc = bmiSize;
pEMR->offBitsSrc = emrSize + bmiSize;
pEMR->cbBitsSrc = bitsSize;
if (emrType == EMR_STRETCHBLT)
{
PEMRSTRETCHBLT pEMRStretch = (PEMRSTRETCHBLT)pEMR;
pEMRStretch->cxSrc = widthSrc;
pEMRStretch->cySrc = heightSrc;
}
/* 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 = /* 1 meter = 39.37 inch */
MulDiv(GetDeviceCaps(physDevSrc->hdc,LOGPIXELSX),3937,100);
lpBmiH->biXPelsPerMeter =
MulDiv(GetDeviceCaps(physDevSrc->hdc,LOGPIXELSY),3937,100);
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(physDevSrc->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));
}
else
ret = FALSE;
HeapFree( GetProcessHeap(), 0, pEMR);
return ret;
}
BOOL CDECL EMFDRV_BitBlt(
PHYSDEV devDst, INT xDst, INT yDst, INT width, INT height,
PHYSDEV devSrc, INT xSrc, INT ySrc, DWORD rop)
{
return EMFDRV_BitBlockTransfer( devDst, xDst, yDst, width, height,
devSrc, xSrc, ySrc, width, height,
rop, EMR_BITBLT );
}
BOOL CDECL EMFDRV_StretchBlt(
PHYSDEV devDst, INT xDst, INT yDst, INT widthDst, INT heightDst,
PHYSDEV devSrc, INT xSrc, INT ySrc, INT widthSrc, INT heightSrc, DWORD rop )
{
return EMFDRV_BitBlockTransfer( devDst, xDst, yDst, widthDst, heightDst,
devSrc, xSrc, ySrc, widthSrc, heightSrc,
rop, EMR_STRETCHBLT );
}
INT CDECL 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;
bits_size = DIB_GetDIBImageBytes(info->bmiHeader.biWidth,
info->bmiHeader.biHeight,
info->bmiHeader.biBitCount);
/* calculate the size of the colour table */
bmi_size = bitmap_info_size(info, wUsage);
emr_size = sizeof (EMRSTRETCHDIBITS) + bmi_size + bits_size;
emr = HeapAlloc(GetProcessHeap(), 0, emr_size );
if (!emr) return 0;
/* 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 = wUsage;
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 ? heightSrc : GDI_ERROR;
}
INT CDECL EMFDRV_SetDIBitsToDevice(
PHYSDEV dev, INT xDst, INT yDst, DWORD width, DWORD height,
INT xSrc, INT ySrc, UINT startscan, UINT lines,
LPCVOID bits, const BITMAPINFO *info, UINT wUsage )
{
EMRSETDIBITSTODEVICE* pEMR;
DWORD size, bmiSize, bitsSize;
bmiSize = bitmap_info_size(info, wUsage);
bitsSize = DIB_GetDIBImageBytes( info->bmiHeader.biWidth,
info->bmiHeader.biHeight,
info->bmiHeader.biBitCount );
size = sizeof(EMRSETDIBITSTODEVICE) + bmiSize + bitsSize;
pEMR = HeapAlloc(GetProcessHeap(), 0, size);
if (!pEMR) return 0;
pEMR->emr.iType = EMR_SETDIBITSTODEVICE;
pEMR->emr.nSize = size;
pEMR->rclBounds.left = xDst;
pEMR->rclBounds.top = yDst;
pEMR->rclBounds.right = xDst + width - 1;
pEMR->rclBounds.bottom = yDst + height - 1;
pEMR->xDest = xDst;
pEMR->yDest = yDst;
pEMR->xSrc = xSrc;
pEMR->ySrc = ySrc;
pEMR->cxSrc = width;
pEMR->cySrc = height;
pEMR->offBmiSrc = sizeof(EMRSETDIBITSTODEVICE);
pEMR->cbBmiSrc = bmiSize;
pEMR->offBitsSrc = sizeof(EMRSETDIBITSTODEVICE) + bmiSize;
pEMR->cbBitsSrc = bitsSize;
pEMR->iUsageSrc = wUsage;
pEMR->iStartScan = startscan;
pEMR->cScans = lines;
memcpy((BYTE*)pEMR + pEMR->offBmiSrc, info, bmiSize);
memcpy((BYTE*)pEMR + pEMR->offBitsSrc, bits, bitsSize);
if (EMFDRV_WriteRecord(dev, (EMR*)pEMR))
EMFDRV_UpdateBBox(dev, &(pEMR->rclBounds));
HeapFree( GetProcessHeap(), 0, pEMR);
return lines;
}
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