Sweden-Number/dlls/gdi32/dibdrv/graphics.c

118 lines
3.3 KiB
C

/*
* DIB driver graphics operations.
*
* Copyright 2011 Huw Davies
*
* 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 "gdi_private.h"
#include "dibdrv.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(dib);
static RECT get_device_rect( HDC hdc, int left, int top, int right, int bottom )
{
RECT rect;
rect.left = left;
rect.top = top;
rect.right = right;
rect.bottom = bottom;
if (GetLayout( hdc ) & LAYOUT_RTL)
{
/* shift the rectangle so that the right border is included after mirroring */
/* it would be more correct to do this after LPtoDP but that's not what Windows does */
rect.left--;
rect.right--;
}
LPtoDP( hdc, (POINT *)&rect, 2 );
if (rect.left > rect.right)
{
int tmp = rect.left;
rect.left = rect.right;
rect.right = tmp;
}
if (rect.top > rect.bottom)
{
int tmp = rect.top;
rect.top = rect.bottom;
rect.bottom = tmp;
}
return rect;
}
/***********************************************************************
* dibdrv_LineTo
*/
BOOL CDECL dibdrv_LineTo( PHYSDEV dev, INT x, INT y )
{
PHYSDEV next = GET_NEXT_PHYSDEV( dev, pLineTo );
dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
POINT pts[2];
GetCurrentPositionEx(dev->hdc, pts);
pts[1].x = x;
pts[1].y = y;
LPtoDP(dev->hdc, pts, 2);
if(defer_pen(pdev) || !pdev->pen_line(pdev, pts, pts + 1))
return next->funcs->pLineTo( next, x, y );
return TRUE;
}
/***********************************************************************
* get_rop2_from_rop
*
* Returns the binary rop that is equivalent to the provided ternary rop
* if the src bits are ignored.
*/
static inline INT get_rop2_from_rop(INT rop)
{
return (((rop >> 18) & 0x0c) | ((rop >> 16) & 0x03)) + 1;
}
/***********************************************************************
* dibdrv_PatBlt
*/
BOOL CDECL dibdrv_PatBlt( PHYSDEV dev, INT x, INT y, INT width, INT height, DWORD rop )
{
PHYSDEV next = GET_NEXT_PHYSDEV( dev, pPatBlt );
dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
INT rop2 = get_rop2_from_rop(rop);
RECT rect = get_device_rect( dev->hdc, x, y, x + width, y + height );
BOOL done;
TRACE("(%p, %d, %d, %d, %d, %06x)\n", dev, x, y, width, height, rop);
if(defer_brush(pdev))
return next->funcs->pPatBlt( next, x, y, width, height, rop );
update_brush_rop( pdev, rop2 );
done = pdev->brush_rects( pdev, 1, &rect );
update_brush_rop( pdev, GetROP2(dev->hdc) );
if(!done)
return next->funcs->pPatBlt( next, x, y, width, height, rop );
return TRUE;
}