[PATCH 1/1] subsystem drm: add fourcc for 16bit buffers

From: Rainer Hochecker
Date: Sun Nov 20 2016 - 07:10:43 EST


From: Rainer Hochecker <fernetmenta@xxxxxxxxx>

In order to expose 16-bit dma buffers to Mesa, additional codes are required.
R16 and RG16 are already defined by OpenGL.

Motivation: allow CreateImageKHR to map 16 bit buffers created by VAAPI

Signed-off-by: Rainer Hochecker <fernetmenta@xxxxxxxxx>
---
include/uapi/drm/drm_fourcc.h | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index a5890bf..2505bc8 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -41,10 +41,16 @@ extern "C" {
/* 8 bpp Red */
#define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */

+/* 16 bpp Red */
+#define DRM_FORMAT_R16 fourcc_code('R', '1', '6', ' ') /* [15:0] R */
+
/* 16 bpp RG */
#define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
#define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */

+/* 32 bpp RG */
+#define DRM_FORMAT_RG16 fourcc_code('R', 'G', '1', '6') /* [31:0] R:G 16:16 little endian */
+
/* 8 bpp RGB */
#define DRM_FORMAT_RGB332 fourcc_code('R', 'G', 'B', '8') /* [7:0] R:G:B 3:3:2 */
#define DRM_FORMAT_BGR233 fourcc_code('B', 'G', 'R', '8') /* [7:0] B:G:R 2:3:3 */
--
2.7.4