diff options
| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2011-11-14 14:51:28 -0800 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-11-15 19:53:23 +0000 |
| commit | 308e5bcbdb10452e8aba31aa21432fb67ee46d72 (patch) | |
| tree | 5e4eebef07685c4047f54d1727fc9bcbace8889d /include/drm/drm_mode.h | |
| parent | 8cf5c9177151537e73ff1816540e4ba24b174391 (diff) | |
drm: add an fb creation ioctl that takes a pixel format v5
To properly support the various plane formats supported by different
hardware, the kernel must know the pixel format of a framebuffer object.
So add a new ioctl taking a format argument corresponding to a fourcc
name from the new drm_fourcc.h header file. Implement the fb creation
hooks in terms of the new mode_fb_cmd2 using helpers where the old
bpp/depth values are needed.
v2: create DRM specific fourcc header file for sharing with libdrm etc
v3: fix rebase failure and use DRM fourcc codes in intel_display.c and
update commit message
v4: make fb_cmd2 handle field into an array for multi-object formats
pull in Ville's fix for the memcpy in drm_plane_init
apply Ville's cleanup to zero out fb_cmd2 arg in drm_mode_addfb
v5: add 'flags' field for interlaced support (from Ville)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Reviewed-by: Rob Clark <rob.clark@linaro.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/drm/drm_mode.h')
| -rw-r--r-- | include/drm/drm_mode.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/drm/drm_mode.h b/include/drm/drm_mode.h index 44576a54dc3b..95d7aad5cad3 100644 --- a/include/drm/drm_mode.h +++ b/include/drm/drm_mode.h @@ -268,6 +268,33 @@ struct drm_mode_fb_cmd { __u32 handle; }; +#define DRM_MODE_FB_INTERLACED (1<<0 /* for interlaced framebuffers */ + +struct drm_mode_fb_cmd2 { + __u32 fb_id; + __u32 width, height; + __u32 pixel_format; /* fourcc code from drm_fourcc.h */ + __u32 flags; /* see above flags */ + + /* + * In case of planar formats, this ioctl allows up to 4 + * buffer objects with offets and pitches per plane. + * The pitch and offset order is dictated by the fourcc, + * e.g. NV12 (http://fourcc.org/yuv.php#NV12) is described as: + * + * YUV 4:2:0 image with a plane of 8 bit Y samples + * followed by an interleaved U/V plane containing + * 8 bit 2x2 subsampled colour difference samples. + * + * So it would consist of Y as offset[0] and UV as + * offeset[1]. Note that offset[0] will generally + * be 0. + */ + __u32 handles[4]; + __u32 pitches[4]; /* pitch for each plane */ + __u32 offsets[4]; /* offset of each plane */ +}; + #define DRM_MODE_FB_DIRTY_ANNOTATE_COPY 0x01 #define DRM_MODE_FB_DIRTY_ANNOTATE_FILL 0x02 #define DRM_MODE_FB_DIRTY_FLAGS 0x03 |