[PATCH 2/6] drm: fourcc byteorder: add DRM_FORMAT_CPU_*

From: Gerd Hoffmann <kraxel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: "Jani Nikula"
	<jani.nikula-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
	"David Airlie" <airlied-cv59FeDIM0c@public.gmane.org>,
	"Michel Dänzer" <michel-otUistvHUpPR7s880joybQ@public.gmane.org>,
	"open list"
	<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	"Pekka Paalanen"
	<ppaalanen-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	"Sean Paul" <seanpaul-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
	"Ville Syrjälä"
	<ville.syrjala-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
	"Alex Deucher"
	<alexdeucher-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	"Daniel Vetter"
	<daniel.vetter-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	"Ilia Mirkin" <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org>,
	"Gerd Hoffmann" <kraxel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: [PATCH 2/6] drm: fourcc byteorder: add DRM_FORMAT_CPU_*
Date: Mon, 24 Apr 2017 08:25:28 +0200	[thread overview]
Message-ID: <20170424062532.26722-3-kraxel@redhat.com> (raw)
In-Reply-To: <20170424062532.26722-1-kraxel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

Add fourcc variants in cpu byte order.  With these at hand we don't
need #ifdefs in drivers want support framebuffers in cpu endianess.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 include/drm/drm_fourcc.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h
index 6942e84b6e..cae05153e8 100644
--- a/include/drm/drm_fourcc.h
+++ b/include/drm/drm_fourcc.h
@@ -25,6 +25,18 @@
 #include <linux/types.h>
 #include <uapi/drm/drm_fourcc.h>
 
+/*
+ * DRM formats are little endian.  define cpu endian variants here, to
+ * reduce the #ifdefs needed in drivers.
+ */
+#ifdef __BIG_ENDIAN
+# define DRM_FORMAT_CPU_XRGB8888 DRM_FORMAT_BGRX8888
+# define DRM_FORMAT_CPU_ARGB8888 DRM_FORMAT_BGRA8888
+#else
+# define DRM_FORMAT_CPU_XRGB8888 DRM_FORMAT_XRGB8888
+# define DRM_FORMAT_CPU_ARGB8888 DRM_FORMAT_ARGB8888
+#endif
+
 struct drm_device;
 struct drm_mode_fb_cmd2;
 
-- 
2.9.3

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