diff options
Diffstat (limited to 'include/drm/drm_fourcc.h')
| -rw-r--r-- | include/drm/drm_fourcc.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h index f9c15845f465..865ef60c17af 100644 --- a/include/drm/drm_fourcc.h +++ b/include/drm/drm_fourcc.h @@ -25,6 +25,28 @@ #include <linux/types.h> #include <uapi/drm/drm_fourcc.h> +/* + * DRM formats are little endian. Define host endian variants for the + * most common formats here, to reduce the #ifdefs needed in drivers. + * + * Note that the DRM_FORMAT_BIG_ENDIAN flag should only be used in + * case the format can't be specified otherwise, so we don't end up + * with two values describing the same format. + */ +#ifdef __BIG_ENDIAN +# define DRM_FORMAT_HOST_XRGB1555 (DRM_FORMAT_XRGB1555 | \ + DRM_FORMAT_BIG_ENDIAN) +# define DRM_FORMAT_HOST_RGB565 (DRM_FORMAT_RGB565 | \ + DRM_FORMAT_BIG_ENDIAN) +# define DRM_FORMAT_HOST_XRGB8888 DRM_FORMAT_BGRX8888 +# define DRM_FORMAT_HOST_ARGB8888 DRM_FORMAT_BGRA8888 +#else +# define DRM_FORMAT_HOST_XRGB1555 DRM_FORMAT_XRGB1555 +# define DRM_FORMAT_HOST_RGB565 DRM_FORMAT_RGB565 +# define DRM_FORMAT_HOST_XRGB8888 DRM_FORMAT_XRGB8888 +# define DRM_FORMAT_HOST_ARGB8888 DRM_FORMAT_ARGB8888 +#endif + struct drm_device; struct drm_mode_fb_cmd2; @@ -66,6 +88,8 @@ const struct drm_format_info * drm_get_format_info(struct drm_device *dev, const struct drm_mode_fb_cmd2 *mode_cmd); uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth); +uint32_t drm_driver_legacy_fb_format(struct drm_device *dev, + uint32_t bpp, uint32_t depth); int drm_format_num_planes(uint32_t format); int drm_format_plane_cpp(uint32_t format, int plane); int drm_format_horz_chroma_subsampling(uint32_t format); |