win32ss/gdi/eng/engobjects.h

   1 /*
   2  *  ReactOS kernel
   3  *  Copyright (C) 1998, 1999, 2000, 2001 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License along
  16  *  with this program; if not, write to the Free Software Foundation, Inc.,
  17  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19  /*
  20  * COPYRIGHT:         See COPYING in the top level directory
  21  * PROJECT:           ReactOS kernel
  22  * PURPOSE:           GDI Internal Objects
  23  * FILE:              subsystem/win32/win32k/eng/objects.h
  24  * PROGRAMER:         Jason Filby
  25  * REVISION HISTORY:
  26  *                 21/8/1999: Created
  27  */
  28
  29 #pragma once
  30
  31 /* Structure of internal gdi objects that win32k manages for ddi engine:
  32    |---------------------------------|
  33    |         Public part             |
  34    |      accessed from engine       |
  35    |---------------------------------|
  36    |        Private part             |
  37    |       managed by gdi            |
  38    |_________________________________|
  39
  40 ---------------------------------------------------------------------------*/
  41
  42 /* EXtended CLip and Window Region Object */
  43 typedef struct _XCLIPOBJ
  44 {
  45   WNDOBJ;
  46   PVOID   pClipRgn;    /* prgnRao_ or (prgnVis_ if (prgnRao_ == z)) */
  47   RECTL   rclClipRgn;
  48   PVOID   pscanClipRgn; /* Ptr to regions rect buffer based on iDirection. */
  49   DWORD   cScan;
  50   DWORD   reserved;
  51   ULONG   ulBSize;
  52   LONG    lscnSize;
  53   ULONG   ulObjSize;
  54   ULONG   iDirection;
  55   ULONG   ulClipType;
  56   DWORD   reserved1;
  57   LONG    lUpDown;
  58   DWORD   reserved2;
  59   BOOL    bShouldDoAll;
  60   DWORD   nComplexity; /* count/mode based on # of rect in regions scan. */
  61   PVOID   pDDA;        /* Pointer to a large drawing structure. */
  62 } XCLIPOBJ, *PXCLIPOBJ;
  63 /*
  64   EngCreateClip allocates XCLIPOBJ and RGNOBJ, pco->co.pClipRgn = &pco->ro.
  65   {
  66     XCLIPOBJ co;
  67     RGNOBJ   ro;
  68   }
  69  */
  70 typedef struct _CLIPGDI {
  71     union
  72     {
  73         CLIPOBJ ClipObj;
  74         WNDOBJ WndObj;
  75     };
  76     /* WNDOBJ part */
  77     HWND              Hwnd;
  78     WNDOBJCHANGEPROC  ChangeProc;
  79     FLONG             Flags;
  80     int               PixelFormat;
  81     /* CLIPOBJ part */
  82     ULONG EnumPos;
  83     ULONG EnumOrder;
  84     ULONG EnumMax;
  85     ULONG RectCount;
  86     RECTL* Rects;
  87 } CLIPGDI, *PCLIPGDI;
  88 C_ASSERT(FIELD_OFFSET(CLIPGDI, ClipObj) == FIELD_OFFSET(CLIPGDI, WndObj.coClient));
  89
  90 // HACK, until we use the original structure
  91 #define XCLIPOBJ CLIPGDI
  92
  93 extern XCLIPOBJ gxcoTrivial;
  94
  95 /*ei What is this for? */
  96 typedef struct _DRVFUNCTIONSGDI {
  97   HDEV  hdev;
  98   DRVFN Functions[INDEX_LAST];
  99 } DRVFUNCTIONSGDI;
 100
 101 typedef struct _FLOATGDI {
 102   ULONG Dummy;
 103 } FLOATGDI;
 104
 105 typedef struct _FONTGDI {
 106   FONTOBJ     FontObj;
 107   ULONG       iUnique;
 108   FLONG       flType;
 109   union{
 110   DHPDEV      dhpdev;
 111   FT_Face     face;
 112   };
 113
 114   LONG        lMaxNegA;
 115   LONG        lMaxNegC;
 116   LONG        lMinWidthD;
 117
 118   LPWSTR      Filename;
 119   BYTE        Underline;
 120   BYTE        StrikeOut;
 121 } FONTGDI, *PFONTGDI;
 122
 123 typedef struct _PATHGDI {
 124   PATHOBJ PathObj;
 125 } PATHGDI;
 126
 127 typedef struct _XFORMGDI {
 128   ULONG Dummy;
 129   /* XFORMOBJ has no public members */
 130 } XFORMGDI;
 131
 132 /* As the *OBJ structures are located at the beginning of the *GDI structures
 133    we can simply typecast the pointer */
 134 #define ObjToGDI(ClipObj, Type) (Type##GDI *)(ClipObj)
 135 #define GDIToObj(ClipGDI, Type) (Type##OBJ *)(ClipGDI)