1 files changed, 86 insertions, 0 deletions
diff --git a/pango/pangowin32-dwrite-fontmap.cpp b/pango/pangowin32-dwrite-fontmap.cpp
new file mode 100644
index 00000000..bb22efea
--- /dev/null
+++ b/pango/pangowin32-dwrite-fontmap.cpp
@@ -0,0 +1,86 @@
+/* Pango
+ * pangowin32-dwrite-fontmap.cpp: Win32 font handling with DirectWrite
+ *
+ * Copyright (C) 2022 Luca Bacci
+ * Copyright (C) 2022 Chun-wei Fan
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "config.h"
+
+#include <initguid.h>
+#include <dwrite.h>
+
+#ifdef STRICT
+#undef STRICT
+#endif
+#include "pangowin32-private.h"
+
+#ifdef _MSC_VER
+# define UUID_OF_IDWriteFactory __uuidof (IDWriteFactory)
+#else
+# define UUID_OF_IDWriteFactory IID_IDWriteFactory
+#endif
+
+struct _PangoWin32DWriteItems
+{
+  IDWriteFactory    *dwrite_factory;
+  IDWriteGdiInterop *gdi_interop;
+};
+
+PangoWin32DWriteItems *
+pango_win32_init_direct_write (void)
+{
+  PangoWin32DWriteItems *dwrite_items = g_new0 (PangoWin32DWriteItems, 1);
+  HRESULT hr;
+  gboolean failed = FALSE;
+
+  hr = DWriteCreateFactory (DWRITE_FACTORY_TYPE_SHARED,
+                            UUID_OF_IDWriteFactory,
+                            reinterpret_cast<IUnknown**> (&dwrite_items->dwrite_factory));
+
+  if (SUCCEEDED (hr) && dwrite_items->dwrite_factory != NULL)
+    {
+      hr = dwrite_items->dwrite_factory->GetGdiInterop (&dwrite_items->gdi_interop);
+      if (FAILED (hr) || dwrite_items->gdi_interop == NULL)
+        {
+          g_error ("DWriteCreateFactory::GetGdiInterop failed with error code %x", (unsigned)hr);
+          dwrite_items->dwrite_factory->Release ();
+          failed = TRUE;
+        }
+    }
+  else
+    {
+      g_error ("DWriteCreateFactory failed with error code %x", (unsigned)hr);
+      failed = TRUE;
+    }
+
+
+  if (failed)
+    g_free (dwrite_items);
+
+  return failed ? NULL : dwrite_items;
+}
+
+void
+pango_win32_dwrite_items_destroy (PangoWin32DWriteItems *dwrite_items)
+{
+  dwrite_items->gdi_interop->Release ();
+  dwrite_items->dwrite_factory->Release ();
+
+  g_free (dwrite_items);
+}