mirror of
https://github.com/reactos/reactos.git
synced 2024-10-30 11:35:58 +00:00
1341 lines
32 KiB
C
1341 lines
32 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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/*
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PURPOSE: Coordinate systems
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* FILE: subsys/win32k/objects/coord.c
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* PROGRAMER: Unknown
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*/
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/* INCLUDES ******************************************************************/
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#include <win32k.h>
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#define NDEBUG
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#include <debug.h>
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/* FUNCTIONS *****************************************************************/
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void FASTCALL
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IntFixIsotropicMapping(PDC dc)
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{
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PDC_ATTR pdcattr;
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LONG fx, fy, s;
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/* Get a pointer to the DC_ATTR */
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pdcattr = dc->pdcattr;
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/* Check if all values are valid */
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if (pdcattr->szlWindowExt.cx == 0 || pdcattr->szlWindowExt.cy == 0 ||
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pdcattr->szlViewportExt.cx == 0 || pdcattr->szlViewportExt.cy == 0)
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{
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/* Don't recalculate */
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return;
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}
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fx = abs(pdcattr->szlWindowExt.cx * pdcattr->szlViewportExt.cy);
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fy = abs(pdcattr->szlWindowExt.cy * pdcattr->szlViewportExt.cx);
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if (fy > fx)
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{
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s = pdcattr->szlWindowExt.cy * pdcattr->szlViewportExt.cx > 0 ? 1 : -1;
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pdcattr->szlViewportExt.cx = s * fx / pdcattr->szlWindowExt.cy;
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}
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else if (fx > fy)
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{
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s = pdcattr->szlWindowExt.cx * pdcattr->szlViewportExt.cy > 0 ? 1 : -1;
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pdcattr->szlViewportExt.cy = s * fy / pdcattr->szlWindowExt.cx;
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}
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}
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// FIXME: don't use floating point in the kernel! use XFORMOBJ function
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BOOL FASTCALL
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IntGdiCombineTransform(
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LPXFORM XFormResult,
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LPXFORM xform1,
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LPXFORM xform2)
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{
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XFORM xformTemp;
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/* Check for illegal parameters */
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if (!XFormResult || !xform1 || !xform2)
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{
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return FALSE;
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}
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/* Create the result in a temporary XFORM, since xformResult may be
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* equal to xform1 or xform2 */
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xformTemp.eM11 = xform1->eM11 * xform2->eM11 + xform1->eM12 * xform2->eM21;
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xformTemp.eM12 = xform1->eM11 * xform2->eM12 + xform1->eM12 * xform2->eM22;
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xformTemp.eM21 = xform1->eM21 * xform2->eM11 + xform1->eM22 * xform2->eM21;
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xformTemp.eM22 = xform1->eM21 * xform2->eM12 + xform1->eM22 * xform2->eM22;
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xformTemp.eDx = xform1->eDx * xform2->eM11 + xform1->eDy * xform2->eM21 + xform2->eDx;
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xformTemp.eDy = xform1->eDx * xform2->eM12 + xform1->eDy * xform2->eM22 + xform2->eDy;
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*XFormResult = xformTemp;
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return TRUE;
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}
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// FIXME: should be XFORML and use XFORMOBJ functions
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BOOL APIENTRY NtGdiCombineTransform(
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LPXFORM UnsafeXFormResult,
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LPXFORM Unsafexform1,
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LPXFORM Unsafexform2)
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{
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BOOL Ret;
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_SEH2_TRY
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{
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ProbeForWrite(UnsafeXFormResult, sizeof(XFORM), 1);
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ProbeForRead(Unsafexform1, sizeof(XFORM), 1);
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ProbeForRead(Unsafexform2, sizeof(XFORM), 1);
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Ret = IntGdiCombineTransform(UnsafeXFormResult,
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Unsafexform1,
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Unsafexform2);
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Ret = FALSE;
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}
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_SEH2_END;
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return Ret;
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}
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// FIXME: Don't use floating point in the kernel
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BOOL
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FASTCALL
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IntGdiModifyWorldTransform(
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PDC pDc,
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CONST LPXFORM lpXForm,
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DWORD Mode)
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{
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XFORM xformWorld2Wnd;
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ASSERT(pDc);
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switch (Mode)
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{
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case MWT_IDENTITY:
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xformWorld2Wnd.eM11 = 1.0f;
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xformWorld2Wnd.eM12 = 0.0f;
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xformWorld2Wnd.eM21 = 0.0f;
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xformWorld2Wnd.eM22 = 1.0f;
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xformWorld2Wnd.eDx = 0.0f;
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xformWorld2Wnd.eDy = 0.0f;
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XForm2MatrixS(&pDc->dclevel.mxWorldToPage, &xformWorld2Wnd);
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break;
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case MWT_LEFTMULTIPLY:
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MatrixS2XForm(&xformWorld2Wnd, &pDc->dclevel.mxWorldToPage);
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IntGdiCombineTransform(&xformWorld2Wnd, lpXForm, &xformWorld2Wnd);
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XForm2MatrixS(&pDc->dclevel.mxWorldToPage, &xformWorld2Wnd);
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break;
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case MWT_RIGHTMULTIPLY:
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MatrixS2XForm(&xformWorld2Wnd, &pDc->dclevel.mxWorldToPage);
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IntGdiCombineTransform(&xformWorld2Wnd, &xformWorld2Wnd, lpXForm);
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XForm2MatrixS(&pDc->dclevel.mxWorldToPage, &xformWorld2Wnd);
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break;
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case MWT_MAX+1: // Must be MWT_SET????
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XForm2MatrixS(&pDc->dclevel.mxWorldToPage, lpXForm); // Do it like Wine.
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break;
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default:
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return FALSE;
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}
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DC_UpdateXforms(pDc);
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return TRUE;
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}
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// FIXME: Don't use floating point in the kernel!
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void IntWindowToViewPort(PDC_ATTR pdcattr, LPXFORM xformWnd2Vport)
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{
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FLOAT scaleX, scaleY;
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scaleX = (pdcattr->szlWindowExt.cx ? (FLOAT)pdcattr->szlViewportExt.cx / (FLOAT)pdcattr->szlWindowExt.cx : 0.0f);
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scaleY = (pdcattr->szlWindowExt.cy ? (FLOAT)pdcattr->szlViewportExt.cy / (FLOAT)pdcattr->szlWindowExt.cy : 0.0f);
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xformWnd2Vport->eM11 = scaleX;
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xformWnd2Vport->eM12 = 0.0;
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xformWnd2Vport->eM21 = 0.0;
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xformWnd2Vport->eM22 = scaleY;
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xformWnd2Vport->eDx = (FLOAT)pdcattr->ptlViewportOrg.x - scaleX * (FLOAT)pdcattr->ptlWindowOrg.x;
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xformWnd2Vport->eDy = (FLOAT)pdcattr->ptlViewportOrg.y - scaleY * (FLOAT)pdcattr->ptlWindowOrg.y;
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}
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// FIXME: Should be XFORML and use XFORMOBJ functions directly
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BOOL
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APIENTRY
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NtGdiGetTransform(
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HDC hDC,
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DWORD iXform,
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LPXFORM XForm)
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{
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PDC dc;
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NTSTATUS Status = STATUS_SUCCESS;
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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 (!XForm)
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{
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DC_UnlockDc(dc);
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SetLastWin32Error(ERROR_INVALID_PARAMETER);
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return FALSE;
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}
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_SEH2_TRY
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{
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ProbeForWrite(XForm, sizeof(XFORM), 1);
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switch (iXform)
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{
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case GdiWorldSpaceToPageSpace:
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MatrixS2XForm(XForm, &dc->dclevel.mxWorldToPage);
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break;
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case GdiWorldSpaceToDeviceSpace:
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MatrixS2XForm(XForm, &dc->dclevel.mxWorldToDevice);
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break;
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case GdiPageSpaceToDeviceSpace:
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IntWindowToViewPort(dc->pdcattr, XForm);
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break;
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case GdiDeviceSpaceToWorldSpace:
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MatrixS2XForm(XForm, &dc->dclevel.mxDeviceToWorld);
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break;
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default:
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DPRINT1("Unknown transform %lu\n", iXform);
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Status = STATUS_INVALID_PARAMETER;
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break;
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}
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Status = _SEH2_GetExceptionCode();
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}
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_SEH2_END;
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DC_UnlockDc(dc);
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return NT_SUCCESS(Status);
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}
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/*!
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* Converts points from logical coordinates into device coordinates. Conversion depends on the mapping mode,
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* world transfrom, viewport origin settings for the given device context.
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* \param hDC device context.
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* \param Points an array of POINT structures (in/out).
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* \param Count number of elements in the array of POINT structures.
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* \return TRUE if success.
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*/
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BOOL
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APIENTRY
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NtGdiTransformPoints(
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HDC hDC,
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PPOINT UnsafePtsIn,
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PPOINT UnsafePtOut,
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INT Count,
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INT iMode)
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{
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PDC dc;
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NTSTATUS Status = STATUS_SUCCESS;
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LPPOINT Points;
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ULONG Size;
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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 (!UnsafePtsIn || !UnsafePtOut || Count <= 0)
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{
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DC_UnlockDc(dc);
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SetLastWin32Error(ERROR_INVALID_PARAMETER);
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return FALSE;
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}
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Size = Count * sizeof(POINT);
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// FIXME: It would be wise to have a small stack buffer as optimization
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Points = ExAllocatePoolWithTag(PagedPool, Size, TAG_COORD);
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if (!Points)
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{
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DC_UnlockDc(dc);
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SetLastWin32Error(ERROR_NOT_ENOUGH_MEMORY);
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return FALSE;
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}
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_SEH2_TRY
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{
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ProbeForWrite(UnsafePtOut, Size, 1);
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ProbeForRead(UnsafePtsIn, Size, 1);
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RtlCopyMemory(Points, UnsafePtsIn, Size);
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Status = _SEH2_GetExceptionCode();
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}
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_SEH2_END;
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if (!NT_SUCCESS(Status))
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{
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DC_UnlockDc(dc);
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ExFreePoolWithTag(Points, TAG_COORD);
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SetLastNtError(Status);
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return FALSE;
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}
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switch (iMode)
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{
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case GdiDpToLp:
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IntDPtoLP(dc, Points, Count);
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break;
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case GdiLpToDp:
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IntLPtoDP(dc, Points, Count);
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break;
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case 2: // Not supported yet. Need testing.
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default:
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{
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DC_UnlockDc(dc);
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ExFreePoolWithTag(Points, TAG_COORD);
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SetLastWin32Error(ERROR_INVALID_PARAMETER);
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return FALSE;
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}
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}
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_SEH2_TRY
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{
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/* pointer was already probed! */
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RtlCopyMemory(UnsafePtOut, Points, Size);
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Status = _SEH2_GetExceptionCode();
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}
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_SEH2_END;
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if (!NT_SUCCESS(Status))
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{
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DC_UnlockDc(dc);
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ExFreePoolWithTag(Points, TAG_COORD);
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SetLastNtError(Status);
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return FALSE;
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}
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//
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// If we are getting called that means User XForms is a mess!
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//
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DC_UnlockDc(dc);
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ExFreePoolWithTag(Points, TAG_COORD);
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return TRUE;
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}
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BOOL
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APIENTRY
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NtGdiModifyWorldTransform(
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HDC hDC,
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LPXFORM UnsafeXForm,
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DWORD Mode)
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{
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PDC dc;
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XFORM SafeXForm;
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BOOL Ret = TRUE;
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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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// The xform is permitted to be NULL for MWT_IDENTITY.
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// However, if it is not NULL, then it must be valid even though it is not used.
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if (UnsafeXForm != NULL || Mode != MWT_IDENTITY)
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{
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_SEH2_TRY
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{
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ProbeForRead(UnsafeXForm, sizeof(XFORM), 1);
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RtlCopyMemory(&SafeXForm, UnsafeXForm, sizeof(XFORM));
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Ret = FALSE;
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}
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_SEH2_END;
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}
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// Safe to handle kernel mode data.
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if (Ret) Ret = IntGdiModifyWorldTransform(dc, &SafeXForm, Mode);
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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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NtGdiOffsetViewportOrgEx(
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HDC hDC,
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int XOffset,
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int YOffset,
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LPPOINT UnsafePoint)
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{
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PDC dc;
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PDC_ATTR pdcattr;
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NTSTATUS Status = STATUS_SUCCESS;
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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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pdcattr = dc->pdcattr;
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if (UnsafePoint)
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{
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_SEH2_TRY
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{
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ProbeForWrite(UnsafePoint, sizeof(POINT), 1);
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UnsafePoint->x = pdcattr->ptlViewportOrg.x;
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UnsafePoint->y = pdcattr->ptlViewportOrg.y;
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if (pdcattr->dwLayout & LAYOUT_RTL)
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{
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UnsafePoint->x = -UnsafePoint->x;
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}
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
|
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{
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Status = _SEH2_GetExceptionCode();
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}
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_SEH2_END;
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if (!NT_SUCCESS(Status))
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{
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SetLastNtError(Status);
|
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DC_UnlockDc(dc);
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return FALSE;
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}
|
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}
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if (pdcattr->dwLayout & LAYOUT_RTL)
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{
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XOffset = -XOffset;
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}
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pdcattr->ptlViewportOrg.x += XOffset;
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pdcattr->ptlViewportOrg.y += YOffset;
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DC_UpdateXforms(dc);
|
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DC_UnlockDc(dc);
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return TRUE;
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}
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|
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BOOL
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APIENTRY
|
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NtGdiOffsetWindowOrgEx(
|
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HDC hDC,
|
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int XOffset,
|
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int YOffset,
|
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LPPOINT Point)
|
|
{
|
|
PDC dc;
|
|
PDC_ATTR pdcattr;
|
|
|
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dc = DC_LockDc(hDC);
|
|
if (!dc)
|
|
{
|
|
SetLastWin32Error(ERROR_INVALID_HANDLE);
|
|
return FALSE;
|
|
}
|
|
pdcattr = dc->pdcattr;
|
|
|
|
if (Point)
|
|
{
|
|
NTSTATUS Status = STATUS_SUCCESS;
|
|
|
|
_SEH2_TRY
|
|
{
|
|
ProbeForWrite(Point, sizeof(POINT), 1);
|
|
Point->x = pdcattr->ptlWindowOrg.x;
|
|
Point->y = pdcattr->ptlWindowOrg.y;
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|
}
|
|
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
Status = _SEH2_GetExceptionCode();
|
|
}
|
|
_SEH2_END;
|
|
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
SetLastNtError(Status);
|
|
DC_UnlockDc(dc);
|
|
return FALSE;
|
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}
|
|
}
|
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|
|
pdcattr->ptlWindowOrg.x += XOffset;
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pdcattr->ptlWindowOrg.y += YOffset;
|
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|
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DC_UpdateXforms(dc);
|
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DC_UnlockDc(dc);
|
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|
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return TRUE;
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}
|
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|
|
BOOL
|
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APIENTRY
|
|
NtGdiScaleViewportExtEx(
|
|
HDC hDC,
|
|
int Xnum,
|
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int Xdenom,
|
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int Ynum,
|
|
int Ydenom,
|
|
LPSIZE pSize)
|
|
{
|
|
PDC pDC;
|
|
PDC_ATTR pdcattr;
|
|
BOOL Ret = FALSE;
|
|
LONG X, Y;
|
|
|
|
pDC = DC_LockDc(hDC);
|
|
if (!pDC)
|
|
{
|
|
SetLastWin32Error(ERROR_INVALID_HANDLE);
|
|
return FALSE;
|
|
}
|
|
pdcattr = pDC->pdcattr;
|
|
|
|
if (pSize)
|
|
{
|
|
NTSTATUS Status = STATUS_SUCCESS;
|
|
|
|
_SEH2_TRY
|
|
{
|
|
ProbeForWrite(pSize, sizeof(LPSIZE), 1);
|
|
|
|
pSize->cx = pdcattr->szlViewportExt.cx;
|
|
pSize->cy = pdcattr->szlViewportExt.cy;
|
|
}
|
|
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
Status = _SEH2_GetExceptionCode();
|
|
}
|
|
_SEH2_END;
|
|
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
SetLastNtError(Status);
|
|
DC_UnlockDc(pDC);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
if (pdcattr->iMapMode > MM_TWIPS)
|
|
{
|
|
if (Xdenom && Ydenom)
|
|
{
|
|
X = Xnum * pdcattr->szlViewportExt.cx / Xdenom;
|
|
if (X)
|
|
{
|
|
Y = Ynum * pdcattr->szlViewportExt.cy / Ydenom;
|
|
if (Y)
|
|
{
|
|
pdcattr->szlViewportExt.cx = X;
|
|
pdcattr->szlViewportExt.cy = Y;
|
|
|
|
IntMirrorWindowOrg(pDC);
|
|
|
|
pdcattr->flXform |= (PAGE_EXTENTS_CHANGED |
|
|
INVALIDATE_ATTRIBUTES |
|
|
DEVICE_TO_WORLD_INVALID);
|
|
|
|
if (pdcattr->iMapMode == MM_ISOTROPIC)
|
|
{
|
|
IntFixIsotropicMapping(pDC);
|
|
}
|
|
DC_UpdateXforms(pDC);
|
|
|
|
Ret = TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
Ret = TRUE;
|
|
|
|
DC_UnlockDc(pDC);
|
|
return Ret;
|
|
}
|
|
|
|
BOOL
|
|
APIENTRY
|
|
NtGdiScaleWindowExtEx(
|
|
HDC hDC,
|
|
int Xnum,
|
|
int Xdenom,
|
|
int Ynum,
|
|
int Ydenom,
|
|
LPSIZE pSize)
|
|
{
|
|
PDC pDC;
|
|
PDC_ATTR pdcattr;
|
|
BOOL Ret = FALSE;
|
|
LONG X, Y;
|
|
|
|
pDC = DC_LockDc(hDC);
|
|
if (!pDC)
|
|
{
|
|
SetLastWin32Error(ERROR_INVALID_HANDLE);
|
|
return FALSE;
|
|
}
|
|
pdcattr = pDC->pdcattr;
|
|
|
|
if (pSize)
|
|
{
|
|
NTSTATUS Status = STATUS_SUCCESS;
|
|
|
|
_SEH2_TRY
|
|
{
|
|
ProbeForWrite(pSize, sizeof(LPSIZE), 1);
|
|
|
|
X = pdcattr->szlWindowExt.cx;
|
|
if (pdcattr->dwLayout & LAYOUT_RTL) X = -X;
|
|
pSize->cx = X;
|
|
pSize->cy = pdcattr->szlWindowExt.cy;
|
|
}
|
|
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
Status = _SEH2_GetExceptionCode();
|
|
}
|
|
_SEH2_END;
|
|
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
SetLastNtError(Status);
|
|
DC_UnlockDc(pDC);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
if (pdcattr->iMapMode > MM_TWIPS)
|
|
{
|
|
if (Xdenom && Ydenom)
|
|
{
|
|
X = Xnum * pdcattr->szlWindowExt.cx / Xdenom;
|
|
if (X)
|
|
{
|
|
Y = Ynum * pdcattr->szlWindowExt.cy / Ydenom;
|
|
if (Y)
|
|
{
|
|
pdcattr->szlWindowExt.cx = X;
|
|
pdcattr->szlWindowExt.cy = Y;
|
|
|
|
IntMirrorWindowOrg(pDC);
|
|
|
|
pdcattr->flXform |= (PAGE_EXTENTS_CHANGED|INVALIDATE_ATTRIBUTES|DEVICE_TO_WORLD_INVALID);
|
|
|
|
if (pdcattr->iMapMode == MM_ISOTROPIC) IntFixIsotropicMapping(pDC);
|
|
DC_UpdateXforms(pDC);
|
|
|
|
Ret = TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
Ret = TRUE;
|
|
|
|
DC_UnlockDc(pDC);
|
|
return Ret;
|
|
}
|
|
|
|
int
|
|
APIENTRY
|
|
IntGdiSetMapMode(
|
|
PDC dc,
|
|
int MapMode)
|
|
{
|
|
int PrevMapMode;
|
|
PDC_ATTR pdcattr = dc->pdcattr;
|
|
|
|
PrevMapMode = pdcattr->iMapMode;
|
|
|
|
pdcattr->iMapMode = MapMode;
|
|
|
|
switch (MapMode)
|
|
{
|
|
case MM_TEXT:
|
|
pdcattr->szlWindowExt.cx = 1;
|
|
pdcattr->szlWindowExt.cy = 1;
|
|
pdcattr->szlViewportExt.cx = 1;
|
|
pdcattr->szlViewportExt.cy = 1;
|
|
pdcattr->flXform &= ~(ISO_OR_ANISO_MAP_MODE|PTOD_EFM22_NEGATIVE|
|
|
PTOD_EFM11_NEGATIVE|POSITIVE_Y_IS_UP);
|
|
pdcattr->flXform |= (PAGE_XLATE_CHANGED|PAGE_TO_DEVICE_SCALE_IDENTITY|
|
|
INVALIDATE_ATTRIBUTES|DEVICE_TO_WORLD_INVALID);
|
|
break;
|
|
|
|
case MM_ISOTROPIC:
|
|
pdcattr->flXform |= ISO_OR_ANISO_MAP_MODE;
|
|
/* Fall through */
|
|
|
|
case MM_LOMETRIC:
|
|
pdcattr->szlWindowExt.cx = pdcattr->szlVirtualDeviceMm.cx * 10;
|
|
pdcattr->szlWindowExt.cy = pdcattr->szlVirtualDeviceMm.cy * 10;
|
|
pdcattr->szlViewportExt.cx = pdcattr->szlVirtualDevicePixel.cx;
|
|
pdcattr->szlViewportExt.cy = -pdcattr->szlVirtualDevicePixel.cy;
|
|
break;
|
|
|
|
case MM_HIMETRIC:
|
|
pdcattr->szlWindowExt.cx = pdcattr->szlVirtualDeviceMm.cx * 100;
|
|
pdcattr->szlWindowExt.cy = pdcattr->szlVirtualDeviceMm.cy * 100;
|
|
pdcattr->szlViewportExt.cx = pdcattr->szlVirtualDevicePixel.cx;
|
|
pdcattr->szlViewportExt.cy = -pdcattr->szlVirtualDevicePixel.cy;
|
|
break;
|
|
|
|
case MM_LOENGLISH:
|
|
pdcattr->szlWindowExt.cx = MulDiv(1000, pdcattr->szlVirtualDeviceMm.cx, 254);
|
|
pdcattr->szlWindowExt.cy = MulDiv(1000, pdcattr->szlVirtualDeviceMm.cy, 254);
|
|
pdcattr->szlViewportExt.cx = pdcattr->szlVirtualDevicePixel.cx;
|
|
pdcattr->szlViewportExt.cy = -pdcattr->szlVirtualDevicePixel.cy;
|
|
break;
|
|
|
|
case MM_HIENGLISH:
|
|
pdcattr->szlWindowExt.cx = MulDiv(10000, pdcattr->szlVirtualDeviceMm.cx, 254);
|
|
pdcattr->szlWindowExt.cy = MulDiv(10000, pdcattr->szlVirtualDeviceMm.cy, 254);
|
|
pdcattr->szlViewportExt.cx = pdcattr->szlVirtualDevicePixel.cx;
|
|
pdcattr->szlViewportExt.cy = -pdcattr->szlVirtualDevicePixel.cy;
|
|
break;
|
|
|
|
case MM_TWIPS:
|
|
pdcattr->szlWindowExt.cx = MulDiv(14400, pdcattr->szlVirtualDeviceMm.cx, 254);
|
|
pdcattr->szlWindowExt.cy = MulDiv(14400, pdcattr->szlVirtualDeviceMm.cy, 254);
|
|
pdcattr->szlViewportExt.cx = pdcattr->szlVirtualDevicePixel.cx;
|
|
pdcattr->szlViewportExt.cy = -pdcattr->szlVirtualDevicePixel.cy;
|
|
break;
|
|
|
|
case MM_ANISOTROPIC:
|
|
pdcattr->flXform &= ~(PAGE_TO_DEVICE_IDENTITY|POSITIVE_Y_IS_UP);
|
|
pdcattr->flXform |= ISO_OR_ANISO_MAP_MODE;
|
|
break;
|
|
|
|
default:
|
|
pdcattr->iMapMode = PrevMapMode;
|
|
PrevMapMode = 0;
|
|
}
|
|
DC_UpdateXforms(dc);
|
|
|
|
return PrevMapMode;
|
|
}
|
|
|
|
|
|
BOOL
|
|
APIENTRY
|
|
NtGdiSetViewportOrgEx(
|
|
HDC hDC,
|
|
int X,
|
|
int Y,
|
|
LPPOINT Point)
|
|
{
|
|
PDC dc;
|
|
PDC_ATTR pdcattr;
|
|
|
|
dc = DC_LockDc(hDC);
|
|
if (!dc)
|
|
{
|
|
SetLastWin32Error(ERROR_INVALID_HANDLE);
|
|
return FALSE;
|
|
}
|
|
pdcattr = dc->pdcattr;
|
|
|
|
if (Point)
|
|
{
|
|
NTSTATUS Status = STATUS_SUCCESS;
|
|
|
|
_SEH2_TRY
|
|
{
|
|
ProbeForWrite(Point, sizeof(POINT), 1);
|
|
Point->x = pdcattr->ptlViewportOrg.x;
|
|
Point->y = pdcattr->ptlViewportOrg.y;
|
|
}
|
|
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
Status = _SEH2_GetExceptionCode();
|
|
}
|
|
_SEH2_END;
|
|
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
SetLastNtError(Status);
|
|
DC_UnlockDc(dc);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
pdcattr->ptlViewportOrg.x = X;
|
|
pdcattr->ptlViewportOrg.y = Y;
|
|
|
|
DC_UpdateXforms(dc);
|
|
DC_UnlockDc(dc);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL
|
|
APIENTRY
|
|
NtGdiSetWindowOrgEx(
|
|
HDC hDC,
|
|
int X,
|
|
int Y,
|
|
LPPOINT Point)
|
|
{
|
|
PDC dc;
|
|
PDC_ATTR pdcattr;
|
|
|
|
dc = DC_LockDc(hDC);
|
|
if (!dc)
|
|
{
|
|
SetLastWin32Error(ERROR_INVALID_HANDLE);
|
|
return FALSE;
|
|
}
|
|
pdcattr = dc->pdcattr;
|
|
|
|
if (Point)
|
|
{
|
|
NTSTATUS Status = STATUS_SUCCESS;
|
|
|
|
_SEH2_TRY
|
|
{
|
|
ProbeForWrite(Point, sizeof(POINT), 1);
|
|
Point->x = pdcattr->ptlWindowOrg.x;
|
|
Point->y = pdcattr->ptlWindowOrg.y;
|
|
}
|
|
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
Status = _SEH2_GetExceptionCode();
|
|
}
|
|
_SEH2_END;
|
|
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
SetLastNtError(Status);
|
|
DC_UnlockDc(dc);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
pdcattr->ptlWindowOrg.x = X;
|
|
pdcattr->ptlWindowOrg.y = Y;
|
|
|
|
DC_UpdateXforms(dc);
|
|
DC_UnlockDc(dc);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
//
|
|
// Mirror Window function.
|
|
//
|
|
VOID
|
|
FASTCALL
|
|
IntMirrorWindowOrg(PDC dc)
|
|
{
|
|
PDC_ATTR pdcattr;
|
|
LONG X;
|
|
|
|
pdcattr = dc->pdcattr;
|
|
|
|
if (!(pdcattr->dwLayout & LAYOUT_RTL))
|
|
{
|
|
pdcattr->ptlWindowOrg.x = pdcattr->lWindowOrgx; // Flip it back.
|
|
return;
|
|
}
|
|
if (!pdcattr->szlViewportExt.cx) return;
|
|
//
|
|
// WOrgx = wox - (Width - 1) * WExtx / VExtx
|
|
//
|
|
X = (dc->erclWindow.right - dc->erclWindow.left) - 1; // Get device width - 1
|
|
|
|
X = (X * pdcattr->szlWindowExt.cx) / pdcattr->szlViewportExt.cx;
|
|
|
|
pdcattr->ptlWindowOrg.x = pdcattr->lWindowOrgx - X; // Now set the inverted win origion.
|
|
|
|
return;
|
|
}
|
|
|
|
// NtGdiSetLayout
|
|
//
|
|
// The default is left to right. This function changes it to right to left, which
|
|
// is the standard in Arabic and Hebrew cultures.
|
|
//
|
|
/*
|
|
* @implemented
|
|
*/
|
|
DWORD
|
|
APIENTRY
|
|
NtGdiSetLayout(
|
|
IN HDC hdc,
|
|
IN LONG wox,
|
|
IN DWORD dwLayout)
|
|
{
|
|
PDC dc;
|
|
PDC_ATTR pdcattr;
|
|
DWORD oLayout;
|
|
|
|
dc = DC_LockDc(hdc);
|
|
if (!dc)
|
|
{
|
|
SetLastWin32Error(ERROR_INVALID_HANDLE);
|
|
return GDI_ERROR;
|
|
}
|
|
pdcattr = dc->pdcattr;
|
|
|
|
pdcattr->dwLayout = dwLayout;
|
|
oLayout = pdcattr->dwLayout;
|
|
|
|
if (!(dwLayout & LAYOUT_ORIENTATIONMASK))
|
|
{
|
|
DC_UnlockDc(dc);
|
|
return oLayout;
|
|
}
|
|
|
|
if (dwLayout & LAYOUT_RTL)
|
|
{
|
|
pdcattr->iMapMode = MM_ANISOTROPIC;
|
|
}
|
|
|
|
pdcattr->szlWindowExt.cy = -pdcattr->szlWindowExt.cy;
|
|
pdcattr->ptlWindowOrg.x = -pdcattr->ptlWindowOrg.x;
|
|
|
|
if (wox == -1)
|
|
IntMirrorWindowOrg(dc);
|
|
else
|
|
pdcattr->ptlWindowOrg.x = wox - pdcattr->ptlWindowOrg.x;
|
|
|
|
if (!(pdcattr->flTextAlign & TA_CENTER)) pdcattr->flTextAlign |= TA_RIGHT;
|
|
|
|
if (dc->dclevel.flPath & DCPATH_CLOCKWISE)
|
|
dc->dclevel.flPath &= ~DCPATH_CLOCKWISE;
|
|
else
|
|
dc->dclevel.flPath |= DCPATH_CLOCKWISE;
|
|
|
|
pdcattr->flXform |= (PAGE_EXTENTS_CHANGED |
|
|
INVALIDATE_ATTRIBUTES |
|
|
DEVICE_TO_WORLD_INVALID);
|
|
|
|
// DC_UpdateXforms(dc);
|
|
DC_UnlockDc(dc);
|
|
return oLayout;
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
LONG
|
|
APIENTRY
|
|
NtGdiGetDeviceWidth(
|
|
IN HDC hdc)
|
|
{
|
|
PDC dc;
|
|
LONG Ret;
|
|
dc = DC_LockDc(hdc);
|
|
if (!dc)
|
|
{
|
|
SetLastWin32Error(ERROR_INVALID_HANDLE);
|
|
return 0;
|
|
}
|
|
Ret = dc->erclWindow.right - dc->erclWindow.left;
|
|
DC_UnlockDc(dc);
|
|
return Ret;
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
BOOL
|
|
APIENTRY
|
|
NtGdiMirrorWindowOrg(
|
|
IN HDC hdc)
|
|
{
|
|
PDC dc;
|
|
dc = DC_LockDc(hdc);
|
|
if (!dc)
|
|
{
|
|
SetLastWin32Error(ERROR_INVALID_HANDLE);
|
|
return FALSE;
|
|
}
|
|
IntMirrorWindowOrg(dc);
|
|
DC_UnlockDc(dc);
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
BOOL
|
|
APIENTRY
|
|
NtGdiSetSizeDevice(
|
|
IN HDC hdc,
|
|
IN INT cxVirtualDevice,
|
|
IN INT cyVirtualDevice)
|
|
{
|
|
PDC dc;
|
|
PDC_ATTR pdcattr;
|
|
|
|
if (!cxVirtualDevice || !cyVirtualDevice)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
dc = DC_LockDc(hdc);
|
|
if (!dc) return FALSE;
|
|
|
|
pdcattr = dc->pdcattr;
|
|
|
|
pdcattr->szlVirtualDeviceSize.cx = cxVirtualDevice;
|
|
pdcattr->szlVirtualDeviceSize.cy = cyVirtualDevice;
|
|
|
|
// DC_UpdateXforms(dc);
|
|
DC_UnlockDc(dc);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
BOOL
|
|
APIENTRY
|
|
NtGdiSetVirtualResolution(
|
|
IN HDC hdc,
|
|
IN INT cxVirtualDevicePixel,
|
|
IN INT cyVirtualDevicePixel,
|
|
IN INT cxVirtualDeviceMm,
|
|
IN INT cyVirtualDeviceMm)
|
|
{
|
|
PDC dc;
|
|
PDC_ATTR pdcattr;
|
|
|
|
/* Check parameters (all zeroes resets to real resolution) */
|
|
if (cxVirtualDevicePixel == 0 && cyVirtualDevicePixel == 0 &&
|
|
cxVirtualDeviceMm == 0 && cyVirtualDeviceMm == 0)
|
|
{
|
|
cxVirtualDevicePixel = NtGdiGetDeviceCaps(hdc, HORZRES);
|
|
cyVirtualDevicePixel = NtGdiGetDeviceCaps(hdc, VERTRES);
|
|
cxVirtualDeviceMm = NtGdiGetDeviceCaps(hdc, HORZSIZE);
|
|
cyVirtualDeviceMm = NtGdiGetDeviceCaps(hdc, VERTSIZE);
|
|
}
|
|
else if (cxVirtualDevicePixel == 0 || cyVirtualDevicePixel == 0 ||
|
|
cxVirtualDeviceMm == 0 || cyVirtualDeviceMm == 0)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
dc = DC_LockDc(hdc);
|
|
if (!dc) return FALSE;
|
|
|
|
pdcattr = dc->pdcattr;
|
|
|
|
pdcattr->szlVirtualDevicePixel.cx = cxVirtualDevicePixel;
|
|
pdcattr->szlVirtualDevicePixel.cy = cyVirtualDevicePixel;
|
|
pdcattr->szlVirtualDeviceMm.cx = cxVirtualDeviceMm;
|
|
pdcattr->szlVirtualDeviceMm.cy = cyVirtualDeviceMm;
|
|
|
|
// DC_UpdateXforms(dc);
|
|
DC_UnlockDc(dc);
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
// FIXME: Don't use floating point in the kernel!
|
|
BOOL FASTCALL
|
|
DC_InvertXform(const XFORM *xformSrc,
|
|
XFORM *xformDest)
|
|
{
|
|
FLOAT determinant;
|
|
|
|
determinant = xformSrc->eM11*xformSrc->eM22 - xformSrc->eM12*xformSrc->eM21;
|
|
if (determinant > -1e-12 && determinant < 1e-12)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
xformDest->eM11 = xformSrc->eM22 / determinant;
|
|
xformDest->eM12 = -xformSrc->eM12 / determinant;
|
|
xformDest->eM21 = -xformSrc->eM21 / determinant;
|
|
xformDest->eM22 = xformSrc->eM11 / determinant;
|
|
xformDest->eDx = -xformSrc->eDx * xformDest->eM11 - xformSrc->eDy * xformDest->eM21;
|
|
xformDest->eDy = -xformSrc->eDx * xformDest->eM12 - xformSrc->eDy * xformDest->eM22;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
VOID FASTCALL
|
|
DC_UpdateXforms(PDC dc)
|
|
{
|
|
XFORM xformWnd2Vport;
|
|
PDC_ATTR pdcattr = dc->pdcattr;
|
|
XFORM xformWorld2Vport, xformWorld2Wnd, xformVport2World;
|
|
|
|
/* Construct a transformation to do the window-to-viewport conversion */
|
|
IntWindowToViewPort(pdcattr, &xformWnd2Vport);
|
|
|
|
/* Combine with the world transformation */
|
|
MatrixS2XForm(&xformWorld2Vport, &dc->dclevel.mxWorldToDevice);
|
|
MatrixS2XForm(&xformWorld2Wnd, &dc->dclevel.mxWorldToPage);
|
|
IntGdiCombineTransform(&xformWorld2Vport, &xformWorld2Wnd, &xformWnd2Vport);
|
|
|
|
/* Create inverse of world-to-viewport transformation */
|
|
MatrixS2XForm(&xformVport2World, &dc->dclevel.mxDeviceToWorld);
|
|
if (DC_InvertXform(&xformWorld2Vport, &xformVport2World))
|
|
{
|
|
pdcattr->flXform &= ~DEVICE_TO_WORLD_INVALID;
|
|
}
|
|
else
|
|
{
|
|
pdcattr->flXform |= DEVICE_TO_WORLD_INVALID;
|
|
}
|
|
|
|
/* Update transformation matrices */
|
|
XForm2MatrixS(&dc->dclevel.mxWorldToDevice, &xformWorld2Vport);
|
|
XForm2MatrixS(&dc->dclevel.mxDeviceToWorld, &xformVport2World);
|
|
}
|
|
|
|
LONG FASTCALL
|
|
IntCalcFillOrigin(PDC pdc)
|
|
{
|
|
pdc->ptlFillOrigin.x = pdc->dclevel.ptlBrushOrigin.x + pdc->ptlDCOrig.x;
|
|
pdc->ptlFillOrigin.y = pdc->dclevel.ptlBrushOrigin.y + pdc->ptlDCOrig.y;
|
|
|
|
return pdc->ptlFillOrigin.y;
|
|
}
|
|
|
|
PPOINTL
|
|
FASTCALL
|
|
IntptlBrushOrigin(PDC pdc, LONG x, LONG y )
|
|
{
|
|
pdc->dclevel.ptlBrushOrigin.x = x;
|
|
pdc->dclevel.ptlBrushOrigin.y = y;
|
|
IntCalcFillOrigin(pdc);
|
|
return &pdc->dclevel.ptlBrushOrigin;
|
|
}
|
|
|
|
VOID
|
|
APIENTRY
|
|
GdiSetDCOrg(HDC hDC, LONG Left, LONG Top, PRECTL prc)
|
|
{
|
|
PDC pdc;
|
|
|
|
pdc = DC_LockDc(hDC);
|
|
if (!pdc) return;
|
|
|
|
pdc->ptlDCOrig.x = Left;
|
|
pdc->ptlDCOrig.y = Top;
|
|
|
|
IntCalcFillOrigin(pdc);
|
|
|
|
if (prc) pdc->erclWindow = *prc;
|
|
|
|
DC_UnlockDc(pdc);
|
|
}
|
|
|
|
// FIXME: remove me
|
|
BOOL FASTCALL
|
|
IntGdiGetDCOrg(PDC pDc, PPOINTL ppt)
|
|
{
|
|
*ppt = pDc->ptlDCOrig;
|
|
return TRUE;
|
|
}
|
|
|
|
// FIXME: remove me
|
|
BOOL APIENTRY
|
|
GdiGetDCOrgEx(HDC hDC, PPOINTL ppt, PRECTL prc)
|
|
{
|
|
PDC pdc;
|
|
|
|
pdc = DC_LockDc(hDC);
|
|
if (!pdc) return FALSE;
|
|
|
|
*prc = pdc->erclWindow;
|
|
*ppt = pdc->ptlDCOrig;
|
|
|
|
DC_UnlockDc(pdc);
|
|
return TRUE;
|
|
}
|
|
|
|
static
|
|
VOID FASTCALL
|
|
DC_vGetAspectRatioFilter(PDC pDC, LPSIZE AspectRatio)
|
|
{
|
|
if (pDC->pdcattr->flFontMapper & 1) // TRUE assume 1.
|
|
{
|
|
// "This specifies that Windows should only match fonts that have the
|
|
// same aspect ratio as the display.", Programming Windows, Fifth Ed.
|
|
AspectRatio->cx = pDC->ppdev->gdiinfo.ulLogPixelsX;
|
|
AspectRatio->cy = pDC->ppdev->gdiinfo.ulLogPixelsY;
|
|
}
|
|
else
|
|
{
|
|
AspectRatio->cx = 0;
|
|
AspectRatio->cy = 0;
|
|
}
|
|
}
|
|
|
|
VOID
|
|
FASTCALL
|
|
DC_vUpdateViewportExt(PDC pdc)
|
|
{
|
|
PDC_ATTR pdcattr;
|
|
|
|
/* Get a pointer to the dc attribute */
|
|
pdcattr = pdc->pdcattr;
|
|
|
|
/* Check if we need to recalculate */
|
|
if (pdcattr->flXform & PAGE_EXTENTS_CHANGED)
|
|
{
|
|
/* Check if we need to do isotropic fixup */
|
|
if (pdcattr->iMapMode == MM_ISOTROPIC)
|
|
{
|
|
IntFixIsotropicMapping(pdc);
|
|
}
|
|
|
|
/* Update xforms, CHECKME: really done here? */
|
|
DC_UpdateXforms(pdc);
|
|
}
|
|
}
|
|
|
|
BOOL APIENTRY
|
|
NtGdiGetDCPoint(
|
|
HDC hDC,
|
|
UINT iPoint,
|
|
PPOINTL Point)
|
|
{
|
|
BOOL Ret = TRUE;
|
|
DC *pdc;
|
|
POINTL SafePoint;
|
|
SIZE Size;
|
|
NTSTATUS Status = STATUS_SUCCESS;
|
|
|
|
if (!Point)
|
|
{
|
|
SetLastWin32Error(ERROR_INVALID_PARAMETER);
|
|
return FALSE;
|
|
}
|
|
|
|
pdc = DC_LockDc(hDC);
|
|
if (!pdc)
|
|
{
|
|
SetLastWin32Error(ERROR_INVALID_HANDLE);
|
|
return FALSE;
|
|
}
|
|
|
|
switch (iPoint)
|
|
{
|
|
case GdiGetViewPortExt:
|
|
DC_vUpdateViewportExt(pdc);
|
|
SafePoint.x = pdc->pdcattr->szlViewportExt.cx;
|
|
SafePoint.y = pdc->pdcattr->szlViewportExt.cy;
|
|
break;
|
|
|
|
case GdiGetWindowExt:
|
|
SafePoint.x = pdc->pdcattr->szlWindowExt.cx;
|
|
SafePoint.y = pdc->pdcattr->szlWindowExt.cy;
|
|
break;
|
|
|
|
case GdiGetViewPortOrg:
|
|
SafePoint = pdc->pdcattr->ptlViewportOrg;
|
|
break;
|
|
|
|
case GdiGetWindowOrg:
|
|
SafePoint = pdc->pdcattr->ptlWindowOrg;
|
|
break;
|
|
|
|
case GdiGetDCOrg:
|
|
SafePoint = pdc->ptlDCOrig;
|
|
break;
|
|
|
|
case GdiGetAspectRatioFilter:
|
|
DC_vGetAspectRatioFilter(pdc, &Size);
|
|
SafePoint.x = Size.cx;
|
|
SafePoint.y = Size.cy;
|
|
break;
|
|
|
|
default:
|
|
SetLastWin32Error(ERROR_INVALID_PARAMETER);
|
|
Ret = FALSE;
|
|
break;
|
|
}
|
|
|
|
if (Ret)
|
|
{
|
|
_SEH2_TRY
|
|
{
|
|
ProbeForWrite(Point, sizeof(POINT), 1);
|
|
*Point = SafePoint;
|
|
}
|
|
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
Status = _SEH2_GetExceptionCode();
|
|
}
|
|
_SEH2_END;
|
|
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
SetLastNtError(Status);
|
|
Ret = FALSE;
|
|
}
|
|
}
|
|
|
|
DC_UnlockDc(pdc);
|
|
return Ret;
|
|
}
|
|
|
|
|
|
DWORD
|
|
APIENTRY
|
|
NtGdiGetBoundsRect(
|
|
IN HDC hdc,
|
|
OUT LPRECT prc,
|
|
IN DWORD f)
|
|
{
|
|
DPRINT1("stub\n");
|
|
return DCB_RESET; /* bounding rectangle always empty */
|
|
}
|
|
|
|
DWORD
|
|
APIENTRY
|
|
NtGdiSetBoundsRect(
|
|
IN HDC hdc,
|
|
IN LPRECT prc,
|
|
IN DWORD f)
|
|
{
|
|
DPRINT1("stub\n");
|
|
return DCB_DISABLE; /* bounding rectangle always empty */
|
|
}
|
|
|
|
|
|
/* EOF */
|