From bd9ec0f3334b460babf61cac9a60e34cad11ceb0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Mon, 15 Jun 2015 20:39:59 +0200
Subject: [PATCH] gtk: Cairo color formats are in native endianness,
 GStreamer's in memory order

CAIRO_FORMAT_ARGB32 is ARGB on big endian and BGRA on little endian.
---
 ext/gtk/gstgtksink.c   | 8 +++++++-
 ext/gtk/gtkgstwidget.c | 5 +++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/ext/gtk/gstgtksink.c b/ext/gtk/gstgtksink.c
index be5bf15e76..baf495088c 100644
--- a/ext/gtk/gstgtksink.c
+++ b/ext/gtk/gstgtksink.c
@@ -51,11 +51,17 @@ static gboolean gst_gtk_sink_set_caps (GstBaseSink * bsink, GstCaps * caps);
 static GstFlowReturn gst_gtk_sink_show_frame (GstVideoSink * bsink,
     GstBuffer * buf);
 
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+#define FORMATS "BGRA"
+#else
+#define FORMATS "ARGB"
+#endif
+
 static GstStaticPadTemplate gst_gtk_sink_template =
 GST_STATIC_PAD_TEMPLATE ("sink",
     GST_PAD_SINK,
     GST_PAD_ALWAYS,
-    GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("BGRA"))
+    GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (FORMATS))
     );
 
 #define DEFAULT_FORCE_ASPECT_RATIO  TRUE
diff --git a/ext/gtk/gtkgstwidget.c b/ext/gtk/gtkgstwidget.c
index ac3e5a9e0b..2f4b0bf102 100644
--- a/ext/gtk/gtkgstwidget.c
+++ b/ext/gtk/gtkgstwidget.c
@@ -431,8 +431,13 @@ gtk_gst_widget_set_caps (GtkGstWidget * widget, GstCaps * caps)
     return FALSE;
 
   /* FIXME: support other formats */
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
   g_return_val_if_fail (GST_VIDEO_INFO_FORMAT (&v_info) ==
       GST_VIDEO_FORMAT_BGRA, FALSE);
+#else
+  g_return_val_if_fail (GST_VIDEO_INFO_FORMAT (&v_info) ==
+      GST_VIDEO_FORMAT_ARGB, FALSE);
+#endif
 
   g_mutex_lock (&widget->priv->lock);