[pixbuf] Enable PNG format by default

Enable IMAGE_PNG (but not IMAGE_PNM) by default, and drag in the
relevant objects only when image_pixbuf() is present in the binary.

Signed-off-by: Michael Brown <mcb30@ipxe.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/src/config/config_pixbuf.c b/src/config/config_pixbuf.c
new file mode 100644
index 00000000..f8ff59da
--- /dev/null
+++ b/src/config/config_pixbuf.c
@@ -0,0 +1,39 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ *
+ * You can also choose to distribute this program under the terms of
+ * the Unmodified Binary Distribution Licence (as given in the file
+ * COPYING.UBDL), provided that you have satisfied its requirements.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+
+#include <config/general.h>
+
+/** @file
+ *
+ * Pixel buffer file format configuration
+ *
+ */
+
+PROVIDE_REQUIRING_SYMBOL();
+
+#ifdef IMAGE_PNM
+REQUIRE_OBJECT ( pnm );
+#endif
+#ifdef IMAGE_PNG
+REQUIRE_OBJECT ( png );
+#endif