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Sweden-Number/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"
/* 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;
BITMAPINFO *bmi;
EMRBITBLT *emr;
DC *dc_src;
DWORD err;
BOOL ret = FALSE;
dc_src = get_physdev_dc(dev_src);
dev_src = GET_DC_PHYSDEV(dc_src, pGetImage);
err = dev_src->funcs->pGetImage(dev_src, src_info, &bits, src);
if (err)
{
SetLastError(err);
return FALSE;
}
bpp = src_info->bmiHeader.biBitCount;
if (bpp <= 8)
bmi_size = sizeof(BITMAPINFOHEADER) + (1 << bpp) * sizeof(RGBQUAD);
else if (bpp == 16 || bpp == 32)
bmi_size = sizeof(BITMAPINFOHEADER) + 3 * sizeof(RGBQUAD);
else
bmi_size = sizeof(BITMAPINFOHEADER);
/* 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 = type;
emr->emr.nSize = size;
emr->rclBounds.left = dst->log_x;
emr->rclBounds.top = dst->log_y;
emr->rclBounds.right = dst->log_x + dst->log_width - 1;
emr->rclBounds.bottom = dst->log_y + dst->log_height - 1;
emr->xDest = dst->log_x;
emr->yDest = dst->log_y;
emr->cxDest = dst->log_width;
emr->cyDest = dst->log_height;
emr->xSrc = src->log_x;
emr->ySrc = src->log_y;
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;
emr->offBmiSrc = emr_size;
emr->cbBmiSrc = bmi_size;
emr->offBitsSrc = emr_size + bmi_size;
emr->cbBitsSrc = bits_size;
bmi = (BITMAPINFO *)((BYTE *)emr + emr->offBmiSrc);
memcpy(bmi, src_info, bmi_size);
memcpy((BYTE *)emr + emr->offBitsSrc, bits.ptr, bits_size);
bmi->bmiHeader.biClrUsed = 0;
if (bmi->bmiHeader.biCompression == BI_RGB && bmi->bmiHeader.biBitCount == 16)
{
bmi->bmiHeader.biCompression = BI_BITFIELDS;
((DWORD *)bmi->bmiColors)[0] = 0xf800;
((DWORD *)bmi->bmiColors)[1] = 0x07e0;
((DWORD *)bmi->bmiColors)[2] = 0x001f;
}
else if (bmi->bmiHeader.biCompression == BI_RGB && bmi->bmiHeader.biBitCount == 32)
{
bmi->bmiHeader.biCompression = BI_BITFIELDS;
((DWORD *)bmi->bmiColors)[0] = 0xff0000;
((DWORD *)bmi->bmiColors)[1] = 0x00ff00;
((DWORD *)bmi->bmiColors)[2] = 0x0000ff;
}
ret = EMFDRV_WriteRecord(dev_dst, (EMR *)emr);
if (ret) EMFDRV_UpdateBBox(dev_dst, &emr->rclBounds);
err:
HeapFree(GetProcessHeap(), 0, emr);
if (bits.free) bits.free(&bits);
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;
BOOL ret;
emr.emr.iType = EMR_BITBLT;
emr.emr.nSize = sizeof(emr);
emr.rclBounds.left = dst->log_x;
emr.rclBounds.top = dst->log_y;
emr.rclBounds.right = dst->log_x + dst->log_width - 1;
emr.rclBounds.bottom = dst->log_y + dst->log_height - 1;
emr.xDest = dst->log_x;
emr.yDest = dst->log_y;
emr.cxDest = dst->log_width;
emr.cyDest = dst->log_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;
}
BOOL CDECL EMFDRV_StretchBlt( PHYSDEV devDst, struct bitblt_coords *dst,
PHYSDEV devSrc, struct bitblt_coords *src, DWORD rop )
{
if (src->log_width == dst->log_width && src->log_height == dst->log_height)
return emfdrv_stretchblt(devDst, dst, devSrc, src, rop, EMR_BITBLT);
else
return emfdrv_stretchblt(devDst, dst, devSrc, src, 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,
BITMAPINFO *info, UINT wUsage, DWORD dwRop )
{
EMRSTRETCHDIBITS *emr;
BOOL ret;
UINT bmi_size, emr_size;
/* calculate the size of the colour table */
bmi_size = get_dib_info_size(info, wUsage);
emr_size = sizeof (EMRSTRETCHDIBITS) + bmi_size + info->bmiHeader.biSizeImage;
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, info->bmiHeader.biSizeImage);
/* 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 = info->bmiHeader.biSizeImage;
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, BITMAPINFO *info, UINT wUsage )
{
EMRSETDIBITSTODEVICE* pEMR;
DWORD bmiSize = get_dib_info_size(info, wUsage);
DWORD size = sizeof(EMRSETDIBITSTODEVICE) + bmiSize + info->bmiHeader.biSizeImage;
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 = info->bmiHeader.biSizeImage;
pEMR->iUsageSrc = wUsage;
pEMR->iStartScan = startscan;
pEMR->cScans = lines;
memcpy((BYTE*)pEMR + pEMR->offBmiSrc, info, bmiSize);
memcpy((BYTE*)pEMR + pEMR->offBitsSrc, bits, info->bmiHeader.biSizeImage);
if (EMFDRV_WriteRecord(dev, (EMR*)pEMR))
EMFDRV_UpdateBBox(dev, &(pEMR->rclBounds));
HeapFree( GetProcessHeap(), 0, pEMR);
return lines;
}
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