dri: add P010, P012, P016 for 10bit/12bit/16bit YUV420 formats

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Signed-off-by: Lin Johnson <johnson.lin@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

include/GL/internal/dri_interface.h

@@ -1352,6 +1352,10 @@ struct __DRIdri2ExtensionRec {
 #define __DRI_IMAGE_FOURCC_YVU422	0x36315659
 #define __DRI_IMAGE_FOURCC_YVU444	0x34325659
 
+#define __DRI_IMAGE_FOURCC_P010		0x30313050
+#define __DRI_IMAGE_FOURCC_P012		0x32313050
+#define __DRI_IMAGE_FOURCC_P016		0x36313050
+
 /**
  * Queryable on images created by createImageFromNames.
  *

src/egl/drivers/dri2/egl_dri2.c

@@ -66,6 +66,20 @@
 #include "util/u_vector.h"
 #include "mapi/glapi/glapi.h"
 
+/* Additional definitions not yet in the drm_fourcc.h.
+ */
+#ifndef DRM_FORMAT_P010
+#define DRM_FORMAT_P010 	 fourcc_code('P', '0', '1', '0') /* 2x2 subsampled Cb:Cr plane 10 bits per channel */
+#endif
+
+#ifndef DRM_FORMAT_P012
+#define DRM_FORMAT_P012 	 fourcc_code('P', '0', '1', '2') /* 2x2 subsampled Cb:Cr plane 12 bits per channel */
+#endif
+
+#ifndef DRM_FORMAT_P016
+#define DRM_FORMAT_P016 	 fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cb:Cr plane 16 bits per channel */
+#endif
+
 #define NUM_ATTRIBS 12
 
 static void
@@ -2262,6 +2276,9 @@ dri2_num_fourcc_format_planes(EGLint format)
    case DRM_FORMAT_NV21:
    case DRM_FORMAT_NV16:
    case DRM_FORMAT_NV61:
+   case DRM_FORMAT_P010:
+   case DRM_FORMAT_P012:
+   case DRM_FORMAT_P016:
       return 2;
 
    case DRM_FORMAT_YUV410: