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Implemented BitBlt, StretchBlt and SetDIBitsToDevice EMF driver 

callbacks.
Cleaned up redundant code in EMFDRV_StretchDIBits.
This commit is contained in:
Dave Belanger 2003-10-15 02:33:15 +00:00 committed by Alexandre Julliard
parent a02ce81082
commit 53f2e61e37
2 changed files with 181 additions and 41 deletions
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216
dlls/gdi/enhmfdrv/bitblt.c
View File

@ -26,6 +26,7 @@
#include "wingdi.h"
#include "gdi.h"
#include "enhmetafiledrv.h"
#include "bitmap.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(enhmetafile);
@ -68,6 +69,130 @@ BOOL EMFDRV_PatBlt( PHYSDEV dev, INT left, INT top,
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;
DC* dcSrc = physDevSrc->dc;
if (emrType == EMR_BITBLT)
emrSize = sizeof(EMRBITBLT);
else if (emrType == EMR_STRETCHBLT)
emrSize = sizeof(EMRSTRETCHBLT);
else
return FALSE;
GetObjectA(dcSrc->hBitmap, sizeof(BITMAP), &BM);
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 = dcSrc->backgroundColor;
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(dcSrc->hSelf,LOGPIXELSX),3937,100);
lpBmiH->biXPelsPerMeter =
MulDiv(GetDeviceCaps(dcSrc->hSelf,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;
/* Initiliaze bitmap bits */
if (GetDIBits(dcSrc->hSelf, dcSrc->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 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 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 EMFDRV_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst,
INT heightDst, INT xSrc, INT ySrc,
@ -78,48 +203,17 @@ INT EMFDRV_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst,
EMRSTRETCHDIBITS *emr;
BOOL ret;
UINT bmi_size=0, bits_size, emr_size;
UINT width_bytes;
/* calculate the size of the bits we need to store */
switch(info->bmiHeader.biBitCount)
{
case 1:
width_bytes = (info->bmiHeader.biWidth+7)/8;
break;
case 4:
width_bytes = (info->bmiHeader.biWidth+1)/2;
break;
case 8:
width_bytes = info->bmiHeader.biWidth;
break;
case 16:
width_bytes = info->bmiHeader.biWidth*2;
break;
case 24:
width_bytes = info->bmiHeader.biWidth*3;
break;
case 32:
width_bytes = info->bmiHeader.biWidth*4;
break;
default:
FIXME("bi.biCount has and unknown value (%d)\n", info->bmiHeader.biBitCount);
return FALSE;
}
width_bytes = ((width_bytes+3)/4) << 2;
bits_size = width_bytes * info->bmiHeader.biHeight;
bits_size = DIB_GetDIBImageBytes(info->bmiHeader.biWidth,
info->bmiHeader.biHeight,
info->bmiHeader.biBitCount);
/* calculate the size of the colour table */
bmi_size = sizeof (BITMAPINFO);
if ( info->bmiHeader.biBitCount <= 8 )
{
UINT num_colors = info->bmiHeader.biClrUsed;
if ( num_colors == 0 )
num_colors = (1<<info->bmiHeader.biBitCount);
bmi_size += num_colors*sizeof(RGBQUAD);
}
bmi_size = DIB_BitmapInfoSize(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);
@ -139,7 +233,7 @@ INT EMFDRV_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst,
emr->xSrc = xSrc; /* FIXME: only save the piece of the bitmap needed */
emr->ySrc = ySrc;
emr->iUsageSrc = DIB_RGB_COLORS;
emr->iUsageSrc = wUsage;
emr->offBmiSrc = sizeof (EMRSTRETCHDIBITS);
emr->cbBmiSrc = bmi_size;
emr->offBitsSrc = emr->offBmiSrc + bmi_size;
@ -162,3 +256,49 @@ INT EMFDRV_StretchDIBits( PHYSDEV dev, INT xDst, INT yDst, INT widthDst,
return ret;
}
INT 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 = DIB_BitmapInfoSize(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;
}

6
dlls/gdi/enhmfdrv/init.c
View File

@ -38,7 +38,7 @@ static const DC_FUNCTIONS EMFDRV_Funcs =
EMFDRV_Arc, /* pArc */
NULL, /* pArcTo */
EMFDRV_BeginPath, /* pBeginPath */
NULL, /* pBitBlt */
EMFDRV_BitBlt, /* pBitBlt */
NULL, /* pChoosePixelFormat */
EMFDRV_Chord, /* pChord */
EMFDRV_CloseFigure, /* pCloseFigure */
@ -119,7 +119,7 @@ static const DC_FUNCTIONS EMFDRV_Funcs =
NULL, /* pSetDCOrg */
NULL, /* pSetDIBColorTable */
NULL, /* pSetDIBits */
NULL, /* pSetDIBitsToDevice */
EMFDRV_SetDIBitsToDevice, /* pSetDIBitsToDevice */
NULL, /* pSetDeviceClipping */
NULL, /* pSetDeviceGammaRamp */
EMFDRV_SetMapMode, /* pSetMapMode */
@ -141,7 +141,7 @@ static const DC_FUNCTIONS EMFDRV_Funcs =
EMFDRV_SetWorldTransform, /* pSetWorldTransform */
NULL, /* pStartDoc */
NULL, /* pStartPage */
NULL, /* pStretchBlt */
EMFDRV_StretchBlt, /* pStretchBlt */
EMFDRV_StretchDIBits, /* pStretchDIBits */
EMFDRV_StrokeAndFillPath, /* pStrokeAndFillPath */
EMFDRV_StrokePath, /* pStrokePath */