reactos/subsystems/win32/win32k/eng/copybits.c
Timo Kreuzer 160142322e [WIN32K]
Make the SURFACE structure a bit more like the half documented windows version.

svn path=/branches/reactos-yarotows/; revision=47603
2010-06-05 21:19:41 +00:00

194 lines
5.8 KiB
C

/*
* ReactOS W32 Subsystem
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* PURPOSE: GDI EngCopyBits Function
* FILE: subsys/win32k/eng/copybits.c
* PROGRAMER: Jason Filby
* REVISION HISTORY:
* 8/18/1999: Created
*/
#include <win32k.h>
#define NDEBUG
#include <debug.h>
/*
* @implemented
*/
BOOL APIENTRY
EngCopyBits(SURFOBJ *psoDest,
SURFOBJ *psoSource,
CLIPOBJ *Clip,
XLATEOBJ *ColorTranslation,
RECTL *DestRect,
POINTL *SourcePoint)
{
BOOL ret;
BYTE clippingType;
RECT_ENUM RectEnum;
BOOL EnumMore;
BLTINFO BltInfo;
SURFACE *psurfDest;
SURFACE *psurfSource;
ASSERT(psoDest != NULL && psoSource != NULL && DestRect != NULL && SourcePoint != NULL);
psurfSource = CONTAINING_RECORD(psoSource, SURFACE, SurfObj);
psurfDest = CONTAINING_RECORD(psoDest, SURFACE, SurfObj);
// FIXME: Don't punt to the driver's DrvCopyBits immediately. Instead,
// mark the copy block function to be DrvCopyBits instead of the
// GDI's copy bit function so as to remove clipping from the
// driver's responsibility
// If one of the surfaces isn't managed by the GDI
if ((psoDest->iType!=STYPE_BITMAP) || (psoSource->iType!=STYPE_BITMAP))
{
// Destination surface is device managed
if (psoDest->iType!=STYPE_BITMAP)
{
/* FIXME: Eng* functions shouldn't call Drv* functions. ? */
if (psurfDest->flags & HOOK_COPYBITS)
{
ret = GDIDEVFUNCS(psoDest).CopyBits(
psoDest, psoSource, Clip, ColorTranslation, DestRect, SourcePoint);
goto cleanup;
}
}
// Source surface is device managed
if (psoSource->iType!=STYPE_BITMAP)
{
/* FIXME: Eng* functions shouldn't call Drv* functions. ? */
if (psurfSource->flags & HOOK_COPYBITS)
{
ret = GDIDEVFUNCS(psoSource).CopyBits(
psoDest, psoSource, Clip, ColorTranslation, DestRect, SourcePoint);
goto cleanup;
}
}
// If CopyBits wasn't hooked, BitBlt must be
ret = IntEngBitBlt(psoDest, psoSource,
NULL, Clip, ColorTranslation, DestRect, SourcePoint,
NULL, NULL, NULL, ROP3_TO_ROP4(SRCCOPY));
goto cleanup;
}
// Determine clipping type
if (!Clip)
{
clippingType = DC_TRIVIAL;
}
else
{
clippingType = Clip->iDComplexity;
}
BltInfo.DestSurface = psoDest;
BltInfo.SourceSurface = psoSource;
BltInfo.PatternSurface = NULL;
BltInfo.XlateSourceToDest = ColorTranslation;
BltInfo.Rop4 = SRCCOPY;
switch (clippingType)
{
case DC_TRIVIAL:
BltInfo.DestRect = *DestRect;
BltInfo.SourcePoint = *SourcePoint;
ret = DibFunctionsForBitmapFormat[psoDest->iBitmapFormat].DIB_BitBltSrcCopy(&BltInfo);
break;
case DC_RECT:
// Clip the blt to the clip rectangle
RECTL_bIntersectRect(&BltInfo.DestRect, DestRect, &Clip->rclBounds);
BltInfo.SourcePoint.x = SourcePoint->x + BltInfo.DestRect.left - DestRect->left;
BltInfo.SourcePoint.y = SourcePoint->y + BltInfo.DestRect.top - DestRect->top;
ret = DibFunctionsForBitmapFormat[psoDest->iBitmapFormat].DIB_BitBltSrcCopy(&BltInfo);
break;
case DC_COMPLEX:
CLIPOBJ_cEnumStart(Clip, FALSE, CT_RECTANGLES, CD_ANY, 0);
do
{
EnumMore = CLIPOBJ_bEnum(Clip,(ULONG) sizeof(RectEnum), (PVOID) &RectEnum);
if (RectEnum.c > 0)
{
RECTL* prclEnd = &RectEnum.arcl[RectEnum.c];
RECTL* prcl = &RectEnum.arcl[0];
do
{
RECTL_bIntersectRect(&BltInfo.DestRect, prcl, DestRect);
BltInfo.SourcePoint.x = SourcePoint->x + prcl->left - DestRect->left;
BltInfo.SourcePoint.y = SourcePoint->y + prcl->top - DestRect->top;
if (!DibFunctionsForBitmapFormat[psoDest->iBitmapFormat].DIB_BitBltSrcCopy(&BltInfo))
{
ret = FALSE;
goto cleanup;
}
prcl++;
} while (prcl < prclEnd);
}
} while (EnumMore);
ret = TRUE;
break;
default:
ASSERT(FALSE);
ret = FALSE;
break;
}
cleanup:
return ret;
}
BOOL APIENTRY
IntEngCopyBits(
SURFOBJ *psoDest,
SURFOBJ *psoSource,
CLIPOBJ *pco,
XLATEOBJ *pxlo,
RECTL *prclDest,
POINTL *ptlSource)
{
return EngCopyBits(psoDest, psoSource, pco, pxlo, prclDest, ptlSource);
}
/* EOF */