reactos/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:              win32ss/gdi/eng/engobjects.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 #ifdef __cplusplus
  44 typedef struct _XCLIPOBJ : _WNDOBJ
  45 {
  46 #else
  47 typedef struct _XCLIPOBJ
  48 {
  49   WNDOBJ;
  50 #endif
  51   PVOID   pClipRgn;    /* prgnRao_ or (prgnVis_ if (prgnRao_ == z)) */
  52   RECTL   rclClipRgn;
  53   PVOID   pscanClipRgn; /* Ptr to regions rect buffer based on iDirection. */
  54   DWORD   cScan;
  55   DWORD   reserved;
  56   ULONG   ulBSize;
  57   LONG    lscnSize;
  58   ULONG   ulObjSize;
  59   ULONG   iDirection;
  60   ULONG   ulClipType;
  61   DWORD   reserved1;
  62   LONG    lUpDown;
  63   DWORD   reserved2;
  64   BOOL    bShouldDoAll;
  65   DWORD   nComplexity; /* count/mode based on # of rect in regions scan. */
  66   PVOID   pDDA;        /* Pointer to a large drawing structure. */
  67 } XCLIPOBJ, *PXCLIPOBJ;
  68 /*
  69   EngCreateClip allocates XCLIPOBJ and RGNOBJ, pco->co.pClipRgn = &pco->ro.
  70   {
  71     XCLIPOBJ co;
  72     RGNOBJ   ro;
  73   }
  74  */
  75 typedef struct _CLIPGDI {
  76     union
  77     {
  78         CLIPOBJ ClipObj;
  79         WNDOBJ WndObj;
  80     };
  81     /* WNDOBJ part */
  82     HWND              Hwnd;
  83     WNDOBJCHANGEPROC  ChangeProc;
  84     FLONG             Flags;
  85     int               PixelFormat;
  86     /* CLIPOBJ part */
  87     ULONG EnumPos;
  88     ULONG EnumOrder;
  89     ULONG EnumMax;
  90     ULONG RectCount;
  91     RECTL* Rects;
  92 } CLIPGDI, *PCLIPGDI;
  93 C_ASSERT(FIELD_OFFSET(CLIPGDI, ClipObj) == FIELD_OFFSET(CLIPGDI, WndObj.coClient));
  94
  95 // HACK, until we use the original structure
  96 #define XCLIPOBJ CLIPGDI
  97
  98 extern XCLIPOBJ gxcoTrivial;
  99
 100 /*ei What is this for? */
 101 typedef struct _DRVFUNCTIONSGDI {
 102   HDEV  hdev;
 103   DRVFN Functions[INDEX_LAST];
 104 } DRVFUNCTIONSGDI;
 105
 106 typedef struct _FLOATGDI {
 107   ULONG Dummy;
 108 } FLOATGDI;
 109
 110 typedef struct _SHARED_MEM {
 111   PVOID         Buffer;
 112   ULONG         BufferSize;
 113   BOOL          IsMapping;
 114   LONG          RefCount;
 115 } SHARED_MEM, *PSHARED_MEM;
 116
 117 typedef struct _SHARED_FACE {
 118   FT_Face       Face;
 119   LONG          RefCount;
 120   PSHARED_MEM   Memory;
 121 } SHARED_FACE, *PSHARED_FACE;
 122
 123 typedef struct _FONTGDI {
 124   FONTOBJ       FontObj;
 125   ULONG         iUnique;
 126   FLONG         flType;
 127
 128   DHPDEV        dhpdev;
 129   PSHARED_FACE  SharedFace;
 130
 131   LONG          lMaxNegA;
 132   LONG          lMaxNegC;
 133   LONG          lMinWidthD;
 134
 135   LPWSTR        Filename;
 136   BYTE          RequestUnderline;
 137   BYTE          RequestStrikeOut;
 138   BYTE          RequestItalic;
 139   LONG          RequestWeight;
 140   BYTE          OriginalItalic;
 141   LONG          OriginalWeight;
 142   BYTE          CharSet;
 143 } FONTGDI, *PFONTGDI;
 144
 145 typedef struct _PATHGDI {
 146   PATHOBJ PathObj;
 147 } PATHGDI;
 148
 149 typedef struct _XFORMGDI {
 150   ULONG Dummy;
 151   /* XFORMOBJ has no public members */
 152 } XFORMGDI;
 153
 154 /* As the *OBJ structures are located at the beginning of the *GDI structures
 155    we can simply typecast the pointer */
 156 #define ObjToGDI(ClipObj, Type) (Type##GDI *)(ClipObj)
 157 #define GDIToObj(ClipGDI, Type) (Type##OBJ *)(ClipGDI)