reactos/win32ss/gdi/ntgdi/gdiobj.h

   1 /*
   2  *  GDI object common header definition
   3  *
   4  */
   5
   6 #pragma once
   7
   8 #define GDI_OBJECT_STACK_LEVELS 20
   9
  10 /* The first 10 entries are never used in windows, they are empty */
  11 static const unsigned RESERVE_ENTRIES_COUNT = 10;
  12
  13 typedef struct _GDI_HANDLE_TABLE
  14 {
  15 /* The table must be located at the beginning of this structure so it can be
  16  * properly mapped!
  17  */
  18 //////////////////////////////////////////////////////////////////////////////
  19   GDI_TABLE_ENTRY Entries[GDI_HANDLE_COUNT];
  20   DEVCAPS         DevCaps;                 // Device Capabilities.
  21   FLONG           flDeviceUniq;            // Device settings uniqueness.
  22   PVOID           pvLangPack;              // Language Pack.
  23   CFONT           cfPublic[GDI_CFONT_MAX]; // Public Fonts.
  24   DWORD           dwCFCount;
  25
  26
  27 } GDI_HANDLE_TABLE, *PGDI_HANDLE_TABLE;
  28
  29 extern PGDI_HANDLE_TABLE GdiHandleTable;
  30
  31 typedef PVOID PGDIOBJ;
  32
  33 typedef VOID (NTAPI *GDICLEANUPPROC)(PVOID ObjectBody);
  34 typedef VOID (NTAPI *GDIOBJDELETEPROC)(PVOID ObjectBody);
  35
  36 /* Every GDI Object must have this standard type of header.
  37  * It's for thread locking. */
  38 typedef struct _BASEOBJECT
  39 {
  40     HGDIOBJ hHmgr;
  41     union {
  42         ULONG ulShareCount; /* For objects without a handle */
  43         DWORD dwThreadId;   /* Exclusive lock owner */
  44     };
  45     USHORT cExclusiveLock;
  46     USHORT BaseFlags;
  47     EX_PUSH_LOCK pushlock;
  48 #if DBG_ENABLE_GDIOBJ_BACKTRACES
  49     PVOID apvBackTrace[GDI_OBJECT_STACK_LEVELS];
  50 #endif
  51 #if DBG_ENABLE_EVENT_LOGGING
  52     SLIST_HEADER slhLog;
  53 #endif
  54 } BASEOBJECT, *POBJ;
  55
  56 enum BASEFLAGS
  57 {
  58     BASEFLAG_LOOKASIDE = 0x80,
  59
  60     /* ReactOS specific: */
  61     BASEFLAG_READY_TO_DIE = 0x1000
  62 };
  63
  64 typedef struct _CLIENTOBJ
  65 {
  66     BASEOBJECT BaseObject;
  67 } CLIENTOBJ, *PCLIENTOBJ;
  68
  69 enum _GDIOBJLAGS
  70 {
  71     GDIOBJFLAG_DEFAULT    = 0x00,
  72     GDIOBJFLAG_IGNOREPID  = 0x01,
  73     GDIOBJFLAG_IGNORELOCK = 0x02
  74 };
  75
  76 INIT_FUNCTION
  77 NTSTATUS
  78 NTAPI
  79 InitGdiHandleTable(VOID);
  80
  81 BOOL
  82 NTAPI
  83 GreIsHandleValid(
  84     HGDIOBJ hobj);
  85
  86 BOOL
  87 NTAPI
  88 GreDeleteObject(
  89     HGDIOBJ hObject);
  90
  91 ULONG
  92 NTAPI
  93 GreGetObjectOwner(
  94     HGDIOBJ hobj);
  95
  96 BOOL
  97 NTAPI
  98 GreSetObjectOwner(
  99     HGDIOBJ hobj,
 100     ULONG ulOwner);
 101
 102 BOOL
 103 NTAPI
 104 GreSetObjectOwnerEx(
 105     HGDIOBJ hobj,
 106     ULONG ulOwner,
 107     ULONG Flags);
 108
 109 INT
 110 NTAPI
 111 GreGetObject(
 112     IN HGDIOBJ hobj,
 113     IN INT cbCount,
 114     IN PVOID pvBuffer);
 115
 116 POBJ
 117 NTAPI
 118 GDIOBJ_AllocateObject(
 119     UCHAR objt,
 120     ULONG cjSize,
 121     FLONG fl);
 122
 123 VOID
 124 NTAPI
 125 GDIOBJ_vDeleteObject(
 126     POBJ pobj);
 127
 128 POBJ
 129 NTAPI
 130 GDIOBJ_ReferenceObjectByHandle(
 131     HGDIOBJ hobj,
 132     UCHAR objt);
 133
 134 VOID
 135 NTAPI
 136 GDIOBJ_vReferenceObjectByPointer(
 137     POBJ pobj);
 138
 139 VOID
 140 NTAPI
 141 GDIOBJ_vDereferenceObject(
 142     POBJ pobj);
 143
 144 PGDIOBJ
 145 NTAPI
 146 GDIOBJ_LockObject(
 147     HGDIOBJ hobj,
 148     UCHAR objt);
 149
 150 PGDIOBJ
 151 NTAPI
 152 GDIOBJ_TryLockObject(
 153     HGDIOBJ hobj,
 154     UCHAR objt);
 155
 156 VOID
 157 NTAPI
 158 GDIOBJ_vUnlockObject(
 159     POBJ pobj);
 160
 161 VOID
 162 NTAPI
 163 GDIOBJ_vSetObjectOwner(
 164     POBJ pobj,
 165     ULONG ulOwner);
 166
 167 BOOL
 168 NTAPI
 169 GDIOBJ_bLockMultipleObjects(
 170     ULONG ulCount,
 171     HGDIOBJ* ahObj,
 172     PGDIOBJ* apObj,
 173     UCHAR objt);
 174
 175 HGDIOBJ
 176 NTAPI
 177 GDIOBJ_hInsertObject(
 178     POBJ pobj,
 179     ULONG ulOwner);
 180
 181 VOID
 182 NTAPI
 183 GDIOBJ_vFreeObject(
 184     POBJ pobj);
 185
 186 VOID
 187 NTAPI
 188 GDIOBJ_vSetObjectAttr(
 189     POBJ pobj,
 190     PVOID pvObjAttr);
 191
 192 PVOID
 193 NTAPI
 194 GDIOBJ_pvGetObjectAttr(
 195     POBJ pobj);
 196
 197 BOOL    NTAPI GDIOBJ_ConvertToStockObj(HGDIOBJ *hObj);
 198 POBJ    NTAPI GDIOBJ_AllocObjWithHandle(ULONG ObjectType, ULONG cjSize);
 199 PGDIOBJ NTAPI GDIOBJ_ShareLockObj(HGDIOBJ hObj, DWORD ObjectType);
 200 PVOID   NTAPI GDI_MapHandleTable(PEPROCESS Process);