[Win32k]

[reactos.git] / reactos / subsystems / win32 / win32k / include / gdiobj.h

diff --git a/reactos/subsystems/win32/win32k/include/gdiobj.h b/reactos/subsystems/win32/win32k/include/gdiobj.h
index 489e98e..3f581bc 100644 (file)
--- a/reactos/subsystems/win32/win32k/include/gdiobj.h
+++ b/reactos/subsystems/win32/win32k/include/gdiobj.h
@@ -3,13 +3,15 @@
  *
  */
 
-#ifndef __WIN32K_GDIOBJ_H
-#define __WIN32K_GDIOBJ_H
+#pragma once
 
 /* Public GDI Object/Handle definitions */
 #include <win32k/ntgdihdl.h>
 #include "win32.h"
 
+/* apparently the first 10 entries are never used in windows as they are empty */
+#define RESERVE_ENTRIES_COUNT 10
+
 typedef struct _GDI_HANDLE_TABLE
 {
 /* The table must be located at the beginning of this structure so it can be
@@ -60,6 +62,8 @@ enum BASEFLAGS
     BASEFLAG_READY_TO_DIE = 0x1000
 };
 
+extern PSECTION_OBJECT GdiTableSection;
+
 BOOL    INTERNAL_CALL GDIOBJ_OwnedByCurrentProcess(HGDIOBJ ObjectHandle);
 BOOL    INTERNAL_CALL GDIOBJ_SetOwnership(HGDIOBJ ObjectHandle, PEPROCESS Owner);
 BOOL    INTERNAL_CALL GDIOBJ_CopyOwnership(HGDIOBJ CopyFrom, HGDIOBJ CopyTo);
@@ -72,9 +76,15 @@ VOID    INTERNAL_CALL GDIOBJ_FreeObj (POBJ pObj, UCHAR ObjectType);
 BOOL    INTERNAL_CALL GDIOBJ_FreeObjByHandle (HGDIOBJ hObj, DWORD ObjectType);
 PGDIOBJ INTERNAL_CALL GDIOBJ_LockObj (HGDIOBJ hObj, DWORD ObjectType);
 PGDIOBJ INTERNAL_CALL GDIOBJ_ShareLockObj (HGDIOBJ hObj, DWORD ObjectType);
+VOID INTERNAL_CALL GDIOBJ_LockMultipleObjs(ULONG ulCount, IN HGDIOBJ* ahObj, OUT PGDIOBJ* apObj);
 
 PVOID   INTERNAL_CALL GDI_MapHandleTable(PSECTION_OBJECT SectionObject, PEPROCESS Process);
 
+INIT_FUNCTION
+NTSTATUS
+NTAPI
+InitGdiHandleTable();
+
 #define GDIOBJ_GetObjectType(Handle) \
   GDI_HANDLE_GET_TYPE(Handle)
 
@@ -88,7 +98,7 @@ BOOL FASTCALL IntGdiSetDCOwnerEx( HDC, DWORD, BOOL);
 BOOL FASTCALL IntGdiSetRegionOwner(HRGN,DWORD);
 
 /*!
- * Release GDI object. Every object locked by GDIOBJ_LockObj() must be unlocked. 
+ * Release GDI object. Every object locked by GDIOBJ_LockObj() must be unlocked.
  * You should unlock the object
  * as soon as you don't need to have access to it's data.
 
@@ -98,6 +108,19 @@ ULONG
 FORCEINLINE
 GDIOBJ_UnlockObjByPtr(POBJ Object)
 {
+#if DBG
+    PTHREADINFO pti = (PTHREADINFO)PsGetCurrentThreadWin32Thread();
+    if (pti)
+    {
+        if (pti->cExclusiveLocks < 1)
+        {
+            DbgPrint("cExclusiveLocks = %ld, object: %ld\n",
+                    pti->cExclusiveLocks, Object->cExclusiveLock);
+            ASSERT(FALSE);
+        }
+        pti->cExclusiveLocks--;
+    }
+#endif
     INT cLocks = InterlockedDecrement((PLONG)&Object->cExclusiveLock);
     ASSERT(cLocks >= 0);
     return cLocks;
@@ -113,6 +136,8 @@ GDIOBJ_ShareUnlockObjByPtr(POBJ Object)
     ASSERT(cLocks >= 0);
     if ((flags & BASEFLAG_READY_TO_DIE) && (cLocks == 0))
     {
+        ASSERT(Object->cExclusiveLock == 0);
+        GDIOBJ_SetOwnership(hobj, PsGetCurrentProcess());
         GDIOBJ_FreeObjByHandle(hobj, GDI_OBJECT_TYPE_DONTCARE);
     }
     return cLocks;
@@ -133,4 +158,9 @@ GDIOBJ_IncrementShareCount(POBJ Object)
 
 INT FASTCALL GreGetObjectOwner(HGDIOBJ, GDIOBJTYPE);
 
-#endif
+#define GDIOBJ_GetKernelObj(Handle) \
+  ((PGDI_TABLE_ENTRY)&GdiHandleTable->Entries[GDI_HANDLE_GET_INDEX(Handle)])->KernelData
+#define GDI_ENTRY_TO_INDEX(ht, e)                                              \
+  (((ULONG_PTR)(e) - (ULONG_PTR)&((ht)->Entries[0])) / sizeof(GDI_TABLE_ENTRY))
+#define GDI_HANDLE_GET_ENTRY(HandleTable, h)                                   \
+  (&(HandleTable)->Entries[GDI_HANDLE_GET_INDEX((h))])