gdi32: Don't store a DC pointer in the metafile devices.

dlls/gdi32/enhmfdrv/dc.c

@@ -34,6 +34,7 @@ INT EMFDRV_SaveDC( PHYSDEV dev )
 BOOL EMFDRV_RestoreDC( PHYSDEV dev, INT level )
 {
     EMFDRV_PDEVICE* physDev = (EMFDRV_PDEVICE*)dev;
+    DC *dc = get_dc_ptr( physDev->hdc );
     EMRRESTOREDC emr;
 
     emr.emr.iType = EMR_RESTOREDC;
@@ -42,10 +43,11 @@ BOOL EMFDRV_RestoreDC( PHYSDEV dev, INT level )
     if (level < 0)
         emr.iRelative = level;
     else
-        emr.iRelative = level - physDev->dc->saveLevel - 1;
+        emr.iRelative = level - dc->saveLevel - 1;
 
     EMFDRV_WriteRecord( dev, &emr.emr );
 
+    release_dc_ptr( dc );
     return TRUE;
 }
 

dlls/gdi32/enhmfdrv/enhmetafiledrv.h

@@ -33,7 +33,6 @@
 typedef struct
 {
     HDC             hdc;
-    DC             *dc;
     ENHMETAHEADER  *emh;           /* Pointer to enhanced metafile header */
     UINT       handles_size, cur_handles;
     HGDIOBJ   *handles;

dlls/gdi32/enhmfdrv/init.c

@@ -159,10 +159,9 @@ static const DC_FUNCTIONS EMFDRV_Funcs =
 /**********************************************************************
  *	     EMFDRV_DeleteDC
  */
-static BOOL EMFDRV_DeleteDC( PHYSDEV dev )
+static BOOL EMFDRV_DeleteDC( DC *dc )
 {
-    EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
-    DC *dc = physDev->dc;
+    EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dc->physDev;
     UINT index;
 
     if (physDev->emh) HeapFree( GetProcessHeap(), 0, physDev->emh );
@@ -324,7 +323,6 @@ HDC WINAPI CreateEnhMetaFileW(
     }
     dc->physDev = (PHYSDEV)physDev;
     physDev->hdc = dc->hSelf;
-    physDev->dc = dc;
 
     if(description) { /* App name\0Title\0\0 */
         length = lstrlenW(description);
@@ -405,11 +403,11 @@ HDC WINAPI CreateEnhMetaFileW(
     {
         if ((hFile = CreateFileW(filename, GENERIC_WRITE | GENERIC_READ, 0,
 				 NULL, CREATE_ALWAYS, 0, 0)) == INVALID_HANDLE_VALUE) {
-            EMFDRV_DeleteDC( dc->physDev );
+            EMFDRV_DeleteDC( dc );
             return 0;
         }
         if (!WriteFile( hFile, (LPSTR)physDev->emh, size, NULL, NULL )) {
-            EMFDRV_DeleteDC( dc->physDev );
+            EMFDRV_DeleteDC( dc );
             return 0;
 	}
 	physDev->hFile = hFile;
@@ -479,7 +477,7 @@ HENHMETAFILE WINAPI CloseEnhMetaFile(HDC hdc) /* [in] metafile DC */
         if (SetFilePointer(physDev->hFile, 0, NULL, FILE_BEGIN) != 0)
         {
             CloseHandle( physDev->hFile );
-            EMFDRV_DeleteDC( dc->physDev );
+            EMFDRV_DeleteDC( dc );
             return 0;
         }
 
@@ -487,7 +485,7 @@ HENHMETAFILE WINAPI CloseEnhMetaFile(HDC hdc) /* [in] metafile DC */
                        sizeof(*physDev->emh), NULL, NULL))
         {
             CloseHandle( physDev->hFile );
-            EMFDRV_DeleteDC( dc->physDev );
+            EMFDRV_DeleteDC( dc );
             return 0;
         }
 	HeapFree( GetProcessHeap(), 0, physDev->emh );
@@ -502,6 +500,6 @@ HENHMETAFILE WINAPI CloseEnhMetaFile(HDC hdc) /* [in] metafile DC */
 
     hmf = EMF_Create_HENHMETAFILE( physDev->emh, (physDev->hFile != 0) );
     physDev->emh = NULL;  /* So it won't be deleted */
-    EMFDRV_DeleteDC( dc->physDev );
+    EMFDRV_DeleteDC( dc );
     return hmf;
 }

dlls/gdi32/mfdrv/init.c

@@ -175,7 +175,6 @@ static DC *MFDRV_AllocMetaFile(void)
     }
     dc->physDev = (PHYSDEV)physDev;
     physDev->hdc = dc->hSelf;
-    physDev->dc = dc;
 
     if (!(physDev->mh = HeapAlloc( GetProcessHeap(), 0, sizeof(*physDev->mh) )))
     {
@@ -204,10 +203,9 @@ static DC *MFDRV_AllocMetaFile(void)
 /**********************************************************************
  *	     MFDRV_DeleteDC
  */
-static BOOL MFDRV_DeleteDC( PHYSDEV dev )
+static BOOL MFDRV_DeleteDC( DC *dc )
 {
-    METAFILEDRV_PDEVICE *physDev = (METAFILEDRV_PDEVICE *)dev;
-    DC *dc = physDev->dc;
+    METAFILEDRV_PDEVICE *physDev = (METAFILEDRV_PDEVICE *)dc->physDev;
     DWORD index;
 
     HeapFree( GetProcessHeap(), 0, physDev->mh );
@@ -251,12 +249,12 @@ HDC WINAPI CreateMetaFileW( LPCWSTR filename )
         physDev->mh->mtType = METAFILE_DISK;
         if ((hFile = CreateFileW(filename, GENERIC_WRITE, 0, NULL,
 				CREATE_ALWAYS, 0, 0)) == INVALID_HANDLE_VALUE) {
-            MFDRV_DeleteDC( dc->physDev );
+            MFDRV_DeleteDC( dc );
             return 0;
         }
         if (!WriteFile( hFile, physDev->mh, sizeof(*physDev->mh), NULL,
 			NULL )) {
-            MFDRV_DeleteDC( dc->physDev );
+            MFDRV_DeleteDC( dc );
             return 0;
 	}
 	physDev->hFile = hFile;
@@ -328,21 +326,21 @@ static DC *MFDRV_CloseMetaFile( HDC hdc )
 
     if (!MFDRV_MetaParam0(dc->physDev, META_EOF))
     {
-        MFDRV_DeleteDC( dc->physDev );
+        MFDRV_DeleteDC( dc );
 	return 0;
     }
 
     if (physDev->mh->mtType == METAFILE_DISK)  /* disk based metafile */
     {
         if (SetFilePointer(physDev->hFile, 0, NULL, FILE_BEGIN) != 0) {
-            MFDRV_DeleteDC( dc->physDev );
+            MFDRV_DeleteDC( dc );
             return 0;
         }
 
 	physDev->mh->mtType = METAFILE_MEMORY; /* This is what windows does */
         if (!WriteFile(physDev->hFile, (LPSTR)physDev->mh,
                        sizeof(*physDev->mh), NULL, NULL)) {
-            MFDRV_DeleteDC( dc->physDev );
+            MFDRV_DeleteDC( dc );
             return 0;
         }
         CloseHandle(physDev->hFile);
@@ -394,7 +392,7 @@ HMETAFILE16 WINAPI CloseMetaFile16(HDC16 hdc)
     hmf = MF_Create_HMETAFILE16( physDev->mh );
 
     physDev->mh = NULL;  /* So it won't be deleted */
-    MFDRV_DeleteDC( dc->physDev );
+    MFDRV_DeleteDC( dc );
     return hmf;
 }
 
@@ -423,7 +421,7 @@ HMETAFILE WINAPI CloseMetaFile(HDC hdc)
     hmf = MF_Create_HMETAFILE( physDev->mh );
 
     physDev->mh = NULL;  /* So it won't be deleted */
-    MFDRV_DeleteDC( dc->physDev );
+    MFDRV_DeleteDC( dc );
     return hmf;
 }
 

dlls/gdi32/mfdrv/metafiledrv.h

@@ -33,7 +33,6 @@
 typedef struct
 {
     HDC          hdc;
-    DC          *dc;
     METAHEADER  *mh;           /* Pointer to metafile header */
     UINT       handles_size, cur_handles;
     HGDIOBJ   *handles;