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https://github.com/reactos/reactos.git
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503 lines
13 KiB
C
503 lines
13 KiB
C
/*
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* ReactOS W32 Subsystem
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* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <win32k.h>
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#define NDEBUG
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#include <debug.h>
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// Some code from the WINE project source (www.winehq.com)
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// Should use Fx in Point
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//
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BOOL FASTCALL
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IntGdiMoveToEx(DC *dc,
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int X,
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int Y,
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LPPOINT Point,
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BOOL BypassPath)
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{
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BOOL PathIsOpen;
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PDC_ATTR pdcattr = dc->pdcattr;
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if ( Point )
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{
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if ( pdcattr->ulDirty_ & DIRTY_PTLCURRENT ) // Double hit!
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{
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Point->x = pdcattr->ptfxCurrent.x; // ret prev before change.
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Point->y = pdcattr->ptfxCurrent.y;
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IntDPtoLP ( dc, Point, 1); // reconvert back.
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}
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else
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{
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Point->x = pdcattr->ptlCurrent.x;
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Point->y = pdcattr->ptlCurrent.y;
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}
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}
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pdcattr->ptlCurrent.x = X;
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pdcattr->ptlCurrent.y = Y;
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pdcattr->ptfxCurrent = pdcattr->ptlCurrent;
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CoordLPtoDP(dc, &pdcattr->ptfxCurrent); // Update fx
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pdcattr->ulDirty_ &= ~(DIRTY_PTLCURRENT|DIRTY_PTFXCURRENT|DIRTY_STYLESTATE);
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if (BypassPath) return TRUE;
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PathIsOpen = PATH_IsPathOpen(dc->dclevel);
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if ( PathIsOpen )
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return PATH_MoveTo ( dc );
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return TRUE;
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}
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// Should use Fx in pt
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//
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VOID FASTCALL
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IntGetCurrentPositionEx(PDC dc, LPPOINT pt)
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{
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PDC_ATTR pdcattr = dc->pdcattr;
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if ( pt )
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{
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if (pdcattr->ulDirty_ & DIRTY_PTFXCURRENT)
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{
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pdcattr->ptfxCurrent = pdcattr->ptlCurrent;
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CoordLPtoDP(dc, &pdcattr->ptfxCurrent); // Update fx
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pdcattr->ulDirty_ &= ~(DIRTY_PTFXCURRENT|DIRTY_STYLESTATE);
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}
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pt->x = pdcattr->ptlCurrent.x;
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pt->y = pdcattr->ptlCurrent.y;
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}
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}
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BOOL FASTCALL
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IntGdiLineTo(DC *dc,
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int XEnd,
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int YEnd)
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{
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SURFACE *psurf;
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BOOL Ret = TRUE;
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PBRUSH pbrLine;
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RECTL Bounds;
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POINT Points[2];
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PDC_ATTR pdcattr = dc->pdcattr;
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if (PATH_IsPathOpen(dc->dclevel))
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{
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Ret = PATH_LineTo(dc, XEnd, YEnd);
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if (Ret)
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{
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// FIXME - PATH_LineTo should maybe do this? No
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pdcattr->ptlCurrent.x = XEnd;
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pdcattr->ptlCurrent.y = YEnd;
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pdcattr->ptfxCurrent = pdcattr->ptlCurrent;
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CoordLPtoDP(dc, &pdcattr->ptfxCurrent); // Update fx
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pdcattr->ulDirty_ &= ~(DIRTY_PTLCURRENT|DIRTY_PTFXCURRENT|DIRTY_STYLESTATE);
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}
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return Ret;
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}
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else
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{
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if (pdcattr->ulDirty_ & (DIRTY_LINE | DC_PEN_DIRTY))
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DC_vUpdateLineBrush(dc);
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psurf = dc->dclevel.pSurface;
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if (NULL == psurf)
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{
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SetLastWin32Error(ERROR_INVALID_HANDLE);
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return FALSE;
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}
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Points[0].x = pdcattr->ptlCurrent.x;
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Points[0].y = pdcattr->ptlCurrent.y;
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Points[1].x = XEnd;
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Points[1].y = YEnd;
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IntLPtoDP(dc, Points, 2);
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/* The DCOrg is in device coordinates */
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Points[0].x += dc->ptlDCOrig.x;
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Points[0].y += dc->ptlDCOrig.y;
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Points[1].x += dc->ptlDCOrig.x;
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Points[1].y += dc->ptlDCOrig.y;
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Bounds.left = min(Points[0].x, Points[1].x);
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Bounds.top = min(Points[0].y, Points[1].y);
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Bounds.right = max(Points[0].x, Points[1].x);
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Bounds.bottom = max(Points[0].y, Points[1].y);
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/* get BRUSH from current pen. */
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pbrLine = dc->dclevel.pbrLine;
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ASSERT(pbrLine);
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if (!(pbrLine->flAttrs & GDIBRUSH_IS_NULL))
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{
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Ret = IntEngLineTo(&psurf->SurfObj,
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dc->rosdc.CombinedClip,
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&dc->eboLine.BrushObject,
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Points[0].x, Points[0].y,
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Points[1].x, Points[1].y,
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&Bounds,
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ROP2_TO_MIX(pdcattr->jROP2));
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}
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}
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if (Ret)
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{
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pdcattr->ptlCurrent.x = XEnd;
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pdcattr->ptlCurrent.y = YEnd;
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pdcattr->ptfxCurrent = pdcattr->ptlCurrent;
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CoordLPtoDP(dc, &pdcattr->ptfxCurrent); // Update fx
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pdcattr->ulDirty_ &= ~(DIRTY_PTLCURRENT|DIRTY_PTFXCURRENT|DIRTY_STYLESTATE);
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}
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return Ret;
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}
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BOOL FASTCALL
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IntGdiPolyBezier(DC *dc,
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LPPOINT pt,
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DWORD Count)
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{
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BOOL ret = FALSE; // default to FAILURE
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if ( PATH_IsPathOpen(dc->dclevel) )
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{
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return PATH_PolyBezier ( dc, pt, Count );
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}
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/* We'll convert it into line segments and draw them using Polyline */
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{
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POINT *Pts;
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INT nOut;
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Pts = GDI_Bezier ( pt, Count, &nOut );
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if ( Pts )
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{
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ret = IntGdiPolyline(dc, Pts, nOut);
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ExFreePoolWithTag(Pts, TAG_BEZIER);
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}
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}
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return ret;
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}
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BOOL FASTCALL
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IntGdiPolyBezierTo(DC *dc,
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LPPOINT pt,
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DWORD Count)
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{
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BOOL ret = FALSE; // default to failure
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PDC_ATTR pdcattr = dc->pdcattr;
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if ( PATH_IsPathOpen(dc->dclevel) )
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ret = PATH_PolyBezierTo ( dc, pt, Count );
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else /* We'll do it using PolyBezier */
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{
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POINT *npt;
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npt = ExAllocatePoolWithTag(PagedPool,
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sizeof(POINT) * (Count + 1),
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TAG_BEZIER);
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if ( npt )
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{
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npt[0].x = pdcattr->ptlCurrent.x;
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npt[0].y = pdcattr->ptlCurrent.y;
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memcpy(npt + 1, pt, sizeof(POINT) * Count);
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ret = IntGdiPolyBezier(dc, npt, Count+1);
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ExFreePoolWithTag(npt, TAG_BEZIER);
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}
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}
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if ( ret )
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{
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pdcattr->ptlCurrent.x = pt[Count-1].x;
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pdcattr->ptlCurrent.y = pt[Count-1].y;
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pdcattr->ptfxCurrent = pdcattr->ptlCurrent;
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CoordLPtoDP(dc, &pdcattr->ptfxCurrent); // Update fx
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pdcattr->ulDirty_ &= ~(DIRTY_PTLCURRENT|DIRTY_PTFXCURRENT|DIRTY_STYLESTATE);
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}
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return ret;
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}
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BOOL FASTCALL
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IntGdiPolyline(DC *dc,
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LPPOINT pt,
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int Count)
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{
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SURFACE *psurf;
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BRUSH *pbrLine;
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LPPOINT Points;
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BOOL Ret = TRUE;
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LONG i;
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PDC_ATTR pdcattr = dc->pdcattr;
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if (PATH_IsPathOpen(dc->dclevel))
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return PATH_Polyline(dc, pt, Count);
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if (pdcattr->ulDirty_ & (DIRTY_FILL | DC_BRUSH_DIRTY))
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DC_vUpdateFillBrush(dc);
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if (pdcattr->ulDirty_ & (DIRTY_LINE | DC_PEN_DIRTY))
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DC_vUpdateLineBrush(dc);
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/* Get BRUSHOBJ from current pen. */
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pbrLine = dc->dclevel.pbrLine;
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ASSERT(pbrLine);
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if (!(pbrLine->flAttrs & GDIBRUSH_IS_NULL))
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{
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Points = EngAllocMem(0, Count * sizeof(POINT), TAG_COORD);
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if (Points != NULL)
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{
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psurf = dc->dclevel.pSurface;
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/* FIXME - psurf can be NULL!!!!
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Don't assert but handle this case gracefully! */
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ASSERT(psurf);
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RtlCopyMemory(Points, pt, Count * sizeof(POINT));
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IntLPtoDP(dc, Points, Count);
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/* Offset the array of points by the DC origin */
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for (i = 0; i < Count; i++)
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{
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Points[i].x += dc->ptlDCOrig.x;
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Points[i].y += dc->ptlDCOrig.y;
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}
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Ret = IntEngPolyline(&psurf->SurfObj,
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dc->rosdc.CombinedClip,
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&dc->eboLine.BrushObject,
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Points,
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Count,
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ROP2_TO_MIX(pdcattr->jROP2));
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EngFreeMem(Points);
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}
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else
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{
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Ret = FALSE;
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}
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}
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return Ret;
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}
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BOOL FASTCALL
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IntGdiPolylineTo(DC *dc,
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LPPOINT pt,
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DWORD Count)
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{
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BOOL ret = FALSE; // default to failure
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PDC_ATTR pdcattr = dc->pdcattr;
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if (PATH_IsPathOpen(dc->dclevel))
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{
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ret = PATH_PolylineTo(dc, pt, Count);
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}
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else /* do it using Polyline */
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{
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POINT *pts = ExAllocatePoolWithTag(PagedPool,
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sizeof(POINT) * (Count + 1),
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TAG_SHAPE);
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if ( pts )
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{
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pts[0].x = pdcattr->ptlCurrent.x;
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pts[0].y = pdcattr->ptlCurrent.y;
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memcpy( pts + 1, pt, sizeof(POINT) * Count);
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ret = IntGdiPolyline(dc, pts, Count + 1);
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ExFreePoolWithTag(pts, TAG_SHAPE);
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}
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}
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if ( ret )
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{
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pdcattr->ptlCurrent.x = pt[Count-1].x;
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pdcattr->ptlCurrent.y = pt[Count-1].y;
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pdcattr->ptfxCurrent = pdcattr->ptlCurrent;
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CoordLPtoDP(dc, &pdcattr->ptfxCurrent); // Update fx
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pdcattr->ulDirty_ &= ~(DIRTY_PTLCURRENT|DIRTY_PTFXCURRENT|DIRTY_STYLESTATE);
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}
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return ret;
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}
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BOOL FASTCALL
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IntGdiPolyPolyline(DC *dc,
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LPPOINT pt,
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PULONG PolyPoints,
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DWORD Count)
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{
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int i;
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LPPOINT pts;
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PULONG pc;
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BOOL ret = FALSE; // default to failure
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pts = pt;
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pc = PolyPoints;
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if (PATH_IsPathOpen(dc->dclevel))
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return PATH_PolyPolyline( dc, pt, PolyPoints, Count );
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for (i = 0; i < Count; i++)
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{
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ret = IntGdiPolyline ( dc, pts, *pc );
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if (ret == FALSE)
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{
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return ret;
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}
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pts+=*pc++;
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}
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return ret;
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}
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/******************************************************************************/
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BOOL
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APIENTRY
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NtGdiLineTo(HDC hDC,
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int XEnd,
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int YEnd)
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{
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DC *dc;
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BOOL Ret;
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dc = DC_LockDc(hDC);
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if (!dc)
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{
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SetLastWin32Error(ERROR_INVALID_HANDLE);
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return FALSE;
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}
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if (dc->dctype == DC_TYPE_INFO)
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{
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DC_UnlockDc(dc);
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/* Yes, Windows really returns TRUE in this case */
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return TRUE;
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}
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Ret = IntGdiLineTo(dc, XEnd, YEnd);
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DC_UnlockDc(dc);
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return Ret;
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}
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BOOL
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APIENTRY
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NtGdiPolyDraw(
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IN HDC hdc,
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IN LPPOINT lppt,
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IN LPBYTE lpbTypes,
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IN ULONG cCount)
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{
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PDC dc;
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PPATH pPath;
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BOOL result = FALSE;
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POINT lastmove;
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unsigned int i;
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PDC_ATTR pdcattr;
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dc = DC_LockDc(hdc);
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if (!dc) return FALSE;
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pdcattr = dc->pdcattr;
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_SEH2_TRY
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{
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ProbeArrayForRead(lppt, sizeof(POINT), cCount, sizeof(LONG));
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ProbeArrayForRead(lpbTypes, sizeof(BYTE), cCount, sizeof(BYTE));
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/* check for each bezierto if there are two more points */
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for ( i = 0; i < cCount; i++ )
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{
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if ( lpbTypes[i] != PT_MOVETO &&
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lpbTypes[i] & PT_BEZIERTO )
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{
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if ( cCount < i+3 ) _SEH2_LEAVE;
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else i += 2;
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}
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}
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/* if no moveto occurs, we will close the figure here */
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lastmove.x = pdcattr->ptlCurrent.x;
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lastmove.y = pdcattr->ptlCurrent.y;
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/* now let's draw */
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for ( i = 0; i < cCount; i++ )
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{
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if ( lpbTypes[i] == PT_MOVETO )
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{
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IntGdiMoveToEx( dc, lppt[i].x, lppt[i].y, NULL, FALSE );
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lastmove.x = pdcattr->ptlCurrent.x;
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lastmove.y = pdcattr->ptlCurrent.y;
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}
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else if ( lpbTypes[i] & PT_LINETO )
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IntGdiLineTo( dc, lppt[i].x, lppt[i].y );
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else if ( lpbTypes[i] & PT_BEZIERTO )
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{
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POINT pts[4];
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pts[0].x = pdcattr->ptlCurrent.x;
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pts[0].y = pdcattr->ptlCurrent.y;
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RtlCopyMemory(pts + 1, &lppt[i], sizeof(POINT) * 3);
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IntGdiPolyBezier(dc, pts, 4);
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i += 2;
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}
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else _SEH2_LEAVE;
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if ( lpbTypes[i] & PT_CLOSEFIGURE )
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{
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if ( PATH_IsPathOpen(dc->dclevel) )
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{
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pPath = PATH_LockPath( dc->dclevel.hPath );
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if (pPath)
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{
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IntGdiCloseFigure( pPath );
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PATH_UnlockPath( pPath );
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}
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}
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else IntGdiLineTo( dc, lastmove.x, lastmove.y );
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}
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}
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result = TRUE;
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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SetLastNtError(_SEH2_GetExceptionCode());
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}
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_SEH2_END;
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DC_UnlockDc(dc);
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return result;
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}
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/*
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* @unimplemented
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*/
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BOOL
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APIENTRY
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NtGdiMoveTo(
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IN HDC hdc,
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IN INT x,
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IN INT y,
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OUT OPTIONAL LPPOINT pptOut)
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{
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UNIMPLEMENTED;
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return FALSE;
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}
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/* EOF */
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