winex11: Always allocate a new GC for bitmap operations.

dlls/winex11.drv/bitblt.c

@@ -1365,16 +1365,21 @@ DWORD X11DRV_GetImage( PHYSDEV dev, BITMAPINFO *info,
     if (X11DRV_check_error())
     {
         /* use a temporary pixmap to avoid the BadMatch error */
+        GC gc;
         Pixmap pixmap;
 
         wine_tsx11_lock();
         pixmap = XCreatePixmap( gdi_display, root_window, width, height, vis.depth );
-        XCopyArea( gdi_display, physdev->drawable, pixmap, get_bitmap_gc(vis.depth),
+        gc = XCreateGC( gdi_display, pixmap, 0, NULL );
+        XSetGraphicsExposures( gdi_display, gc, False );
+        XCopyArea( gdi_display, physdev->drawable, pixmap, gc,
                    physdev->dc_rect.left + x, physdev->dc_rect.top + y, width, height, 0, 0 );
         image = XGetImage( gdi_display, pixmap, 0, 0, width, height, AllPlanes, ZPixmap );
         XFreePixmap( gdi_display, pixmap );
+        XFreeGC( gdi_display, gc );
         wine_tsx11_unlock();
     }
+
     if (!image) return ERROR_OUTOFMEMORY;
 
     info->bmiHeader.biWidth     = width;
@@ -1408,6 +1413,7 @@ static DWORD put_pixmap_image( Pixmap pixmap, const XVisualInfo *vis,
 {
     DWORD ret;
     XImage *image;
+    GC gc;
     struct bitblt_coords coords;
     struct gdi_image_bits dst_bits;
     const XPixmapFormatValues *format = pixmap_formats[vis->depth];
@@ -1439,8 +1445,9 @@ static DWORD put_pixmap_image( Pixmap pixmap, const XVisualInfo *vis,
     {
         image->data = dst_bits.ptr;
         wine_tsx11_lock();
-        XPutImage( gdi_display, pixmap, get_bitmap_gc( vis->depth ),
-                   image, 0, 0, 0, 0, coords.width, coords.height );
+        gc = XCreateGC( gdi_display, pixmap, 0, NULL );
+        XPutImage( gdi_display, pixmap, gc, image, 0, 0, 0, 0, coords.width, coords.height );
+        XFreeGC( gdi_display, gc );
         wine_tsx11_unlock();
         image->data = NULL;
     }

dlls/winex11.drv/bitmap.c

@@ -36,7 +36,7 @@ X_PHYSBITMAP BITMAP_stock_phys_bitmap = { 0 };  /* phys bitmap for the default s
 
 static XContext bitmap_context;  /* X context to associate a phys bitmap to a handle */
 
-GC get_bitmap_gc(int depth)
+static GC get_bitmap_gc(int depth)
 {
     if(depth < 1 || depth > 32)
         return 0;

dlls/winex11.drv/brush.c

@@ -110,7 +110,7 @@ static Pixmap BRUSH_DitherColor( COLORREF color, int depth)
     static COLORREF prevColor = 0xffffffff;
     unsigned int x, y;
     Pixmap pixmap;
-    GC gc = get_bitmap_gc(depth);
+    GC gc;
 
     wine_tsx11_lock();
     if (!ditherImage)
@@ -149,8 +149,9 @@ static Pixmap BRUSH_DitherColor( COLORREF color, int depth)
     }
 
     pixmap = XCreatePixmap( gdi_display, root_window, MATRIX_SIZE, MATRIX_SIZE, depth );
-    XPutImage( gdi_display, pixmap, gc, ditherImage, 0, 0,
-    	       0, 0, MATRIX_SIZE, MATRIX_SIZE );
+    gc = XCreateGC( gdi_display, pixmap, 0, NULL );
+    XPutImage( gdi_display, pixmap, gc, ditherImage, 0, 0, 0, 0, MATRIX_SIZE, MATRIX_SIZE );
+    XFreeGC( gdi_display, gc );
     wine_tsx11_unlock();
 
     return pixmap;

dlls/winex11.drv/x11drv.h

@@ -164,9 +164,6 @@ static inline void add_bounds_rect( RECT *bounds, const RECT *rect )
 
 extern X_PHYSBITMAP BITMAP_stock_phys_bitmap DECLSPEC_HIDDEN;  /* phys bitmap for the default stock bitmap */
 
-/* Retrieve the GC used for bitmap operations */
-extern GC get_bitmap_gc(int depth) DECLSPEC_HIDDEN;
-
 /* Wine driver X11 functions */
 
 extern BOOL X11DRV_Arc( PHYSDEV dev, INT left, INT top, INT right,

dlls/winex11.drv/xrender.c

@@ -1876,6 +1876,7 @@ static DWORD create_image_pixmap( BITMAPINFO *info, const struct gdi_image_bits
     int depth = pict_formats[format]->depth;
     struct gdi_image_bits dst_bits;
     XRenderPictureAttributes pa;
+    GC gc;
     XImage *image;
 
     wine_tsx11_lock();
@@ -1894,9 +1895,10 @@ static DWORD create_image_pixmap( BITMAPINFO *info, const struct gdi_image_bits
 
     wine_tsx11_lock();
     *pixmap = XCreatePixmap( gdi_display, root_window, width, height, depth );
-    XPutImage( gdi_display, *pixmap, get_bitmap_gc( depth ), image,
-               src->visrect.left, 0, 0, 0, width, height );
+    gc = XCreateGC( gdi_display, *pixmap, 0, NULL );
+    XPutImage( gdi_display, *pixmap, gc, image, src->visrect.left, 0, 0, 0, width, height );
     *pict = pXRenderCreatePicture( gdi_display, *pixmap, pict_formats[format], CPRepeat, &pa );
+    XFreeGC( gdi_display, gc );
     wine_tsx11_unlock();
 
     /* make coordinates relative to the pixmap */