tdf#107166 BindDC doesn't handle 0 width/height rect consistently

When binding a GDI device context to D2D we need to provide a
rectangle where the surface will have effect. When we just need
some font information we need to bind the DC too, but we aren't
really interested what the rectangle is, so we just provided a
0,0,0,0 rectangle in that case. This sometimes fails with a
"out of memory" result and is dependent on the renderer.

Instead of 0,0,0,0 rectangle we rather define a 0,0,1,1 rectangle
which should never fail. This is not problematic as for actual
rendering we later rebind with an actual rectangle.

Change-Id: I79c7f0cf4d69f213370ed26a811a908ed16070ff
Reviewed-on: https://gerrit.libreoffice.org/39902
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
(cherry picked from commit 35f8c78b5fbdbb3619b1c0f9fdee5f84ac1a6f73)
Reviewed-on: https://gerrit.libreoffice.org/40273
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>
Reviewed-by: Michael Stahl <mstahl@redhat.com>
Reviewed-by: Jan Holesovsky <kendy@collabora.com>
Tested-by: Jan Holesovsky <kendy@collabora.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/vcl/inc/win/winlayout.hxx b/vcl/inc/win/winlayout.hxx
index 9d2a40eba5be..128ff1f96a47 100644
--- a/vcl/inc/win/winlayout.hxx
+++ b/vcl/inc/win/winlayout.hxx
@@ -225,7 +225,10 @@ public:
         SalGraphics &rGraphics,
         HDC hDC) override;
 
-    bool BindDC(HDC hDC, tools::Rectangle const & rRect = tools::Rectangle(0, 0, 0, 0)) {
+    bool BindDC(HDC hDC, tools::Rectangle const & rRect = tools::Rectangle(0, 0, 1, 1))
+    {
+        if (rRect.GetWidth() == 0 || rRect.GetHeight() == 0)
+            return false;
         RECT const rc = { rRect.Left(), rRect.Top(), rRect.Right(), rRect.Bottom() };
         return SUCCEEDED(mpRT->BindDC(hDC, &rc));
     }