gdi32: Make the push/pop_dc_driver functions available to the drivers.

dlls/gdi32/bitmap.c

@@ -703,12 +703,12 @@ static HGDIOBJ BITMAP_SelectObject( HGDIOBJ handle, HDC hdc )
 
     old_physdev = GET_DC_PHYSDEV( dc, pSelectBitmap );
     if(old_physdev == &dc->dibdrv.dev)
-        pop_dc_driver( dc, old_physdev );
+        old_physdev = pop_dc_driver( &dc->physDev );
 
     if(bitmap->dib)
     {
         physdev = &dc->dibdrv.dev;
-        push_dc_driver( dc, physdev, physdev->funcs );
+        push_dc_driver( &dc->physDev, physdev, physdev->funcs );
     }
     else
         physdev = GET_DC_PHYSDEV( dc, pSelectBitmap );
@@ -742,8 +742,8 @@ static HGDIOBJ BITMAP_SelectObject( HGDIOBJ handle, HDC hdc )
  done:
     if(!ret)
     {
-        if(physdev == &dc->dibdrv.dev) pop_dc_driver( dc, physdev );
-        if(old_physdev == &dc->dibdrv.dev) push_dc_driver( dc, old_physdev, old_physdev->funcs );
+        if(physdev == &dc->dibdrv.dev) pop_dc_driver( &dc->physDev );
+        if(old_physdev == &dc->dibdrv.dev) push_dc_driver( &dc->physDev, old_physdev, old_physdev->funcs );
     }
     release_dc_ptr( dc );
     return ret;

dlls/gdi32/dc.c

@@ -183,8 +183,7 @@ void free_dc_ptr( DC *dc )
 
     while (dc->physDev != &dc->nulldrv)
     {
-        PHYSDEV physdev = dc->physDev;
-        pop_dc_driver( dc, physdev );
+        PHYSDEV physdev = pop_dc_driver( &dc->physDev );
         physdev->funcs->pDeleteDC( physdev );
     }
     free_gdi_handle( dc->hSelf );
@@ -248,33 +247,6 @@ void update_dc( DC *dc )
 
 
 /***********************************************************************
- *           push_dc_driver
- *
- * Push a driver on top of the DC driver stack.
- */
-void push_dc_driver( DC * dc, PHYSDEV physdev, const DC_FUNCTIONS *funcs )
-{
-    physdev->funcs = funcs;
-    physdev->next = dc->physDev;
-    physdev->hdc = dc->hSelf;
-    dc->physDev = physdev;
-}
-
-
-/***********************************************************************
- *           pop_dc_driver
- *
- * Pop the top driver from the DC driver stack.
- */
-void pop_dc_driver( DC * dc, PHYSDEV physdev )
-{
-    assert( physdev == dc->physDev );
-    assert( physdev != &dc->nulldrv );
-    dc->physDev = physdev->next;
-}
-
-
-/***********************************************************************
  *           DC_DeleteObject
  */
 static BOOL DC_DeleteObject( HGDIOBJ handle )
@@ -662,7 +634,7 @@ HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
             WARN("creation aborted by device\n" );
             goto error;
         }
-        push_dc_driver( dc, physdev, funcs );
+        push_dc_driver( &dc->physDev, physdev, funcs );
     }
 
     dc->vis_rect.left   = 0;
@@ -786,7 +758,7 @@ HDC WINAPI CreateCompatibleDC( HDC hdc )
             WARN("creation aborted by device\n");
             goto error;
         }
-        push_dc_driver( dc, physDev, funcs );
+        push_dc_driver( &dc->physDev, physDev, funcs );
     }
     DC_InitDC( dc );
     release_dc_ptr( dc );

dlls/gdi32/enhmfdrv/init.c

@@ -331,7 +331,7 @@ HDC WINAPI CreateEnhMetaFileW(
         return 0;
     }
 
-    push_dc_driver( dc, &physDev->dev, &EMFDRV_Funcs );
+    push_dc_driver( &dc->physDev, &physDev->dev, &EMFDRV_Funcs );
 
     physDev->handles = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, HANDLE_LIST_INC * sizeof(physDev->handles[0]));
     physDev->handles_size = HANDLE_LIST_INC;

dlls/gdi32/gdi_private.h

@@ -330,8 +330,6 @@ extern void free_dc_ptr( DC *dc ) DECLSPEC_HIDDEN;
 extern DC *get_dc_ptr( HDC hdc ) DECLSPEC_HIDDEN;
 extern void release_dc_ptr( DC *dc ) DECLSPEC_HIDDEN;
 extern void update_dc( DC *dc ) DECLSPEC_HIDDEN;
-extern void push_dc_driver( DC * dc, PHYSDEV physdev, const DC_FUNCTIONS *funcs ) DECLSPEC_HIDDEN;
-extern void pop_dc_driver( DC * dc, PHYSDEV physdev ) DECLSPEC_HIDDEN;
 extern void DC_InitDC( DC * dc ) DECLSPEC_HIDDEN;
 extern void DC_UpdateXforms( DC * dc ) DECLSPEC_HIDDEN;
 

dlls/gdi32/mfdrv/init.c

@@ -224,7 +224,7 @@ static DC *MFDRV_AllocMetaFile(void)
         return NULL;
     }
 
-    push_dc_driver( dc, &physDev->dev, &MFDRV_Funcs );
+    push_dc_driver( &dc->physDev, &physDev->dev, &MFDRV_Funcs );
 
     physDev->handles = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, HANDLE_LIST_INC * sizeof(physDev->handles[0]));
     physDev->handles_size = HANDLE_LIST_INC;

include/wine/gdi_driver.h

@@ -199,4 +199,19 @@ static inline PHYSDEV get_physdev_entry_point( PHYSDEV dev, size_t offset )
 #define GET_NEXT_PHYSDEV(dev,func) \
     get_physdev_entry_point( (dev)->next, FIELD_OFFSET(struct gdi_dc_funcs,func))
 
+static inline void push_dc_driver( PHYSDEV *dev, PHYSDEV physdev, const struct gdi_dc_funcs *funcs )
+{
+    physdev->funcs = funcs;
+    physdev->next = *dev;
+    physdev->hdc = (*dev)->hdc;
+    *dev = physdev;
+}
+
+static inline PHYSDEV pop_dc_driver( PHYSDEV *dev )
+{
+    PHYSDEV ret = *dev;
+    *dev = ret->next;
+    return ret;
+}
+
 #endif /* __WINE_WINE_GDI_DRIVER_H */