From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Kocialkowski Subject: [PATCH v2 10/43] drm/fourcc: Add format helpers for checking YUV planes disposition Date: Fri, 23 Nov 2018 10:24:42 +0100 Message-ID: <20181123092515.2511-11-paul.kocialkowski@bootlin.com> References: <20181123092515.2511-1-paul.kocialkowski@bootlin.com> Reply-To: paul.kocialkowski-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: Sender: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org In-Reply-To: <20181123092515.2511-1-paul.kocialkowski-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org Cc: Maarten Lankhorst , Maxime Ripard , Sean Paul , David Airlie , Chen-Yu Tsai , Thomas Petazzoni , linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, Daniel Vetter , Paul Kocialkowski List-Id: dri-devel@lists.freedesktop.org This introduces new format helpers that use the previously-introduced format info helpers for checking YUV planes disposition. Only the format fourcc is required by these helpers and the formats are iterated from the list. Signed-off-by: Paul Kocialkowski --- drivers/gpu/drm/drm_fourcc.c | 60 ++++++++++++++++++++++++++++++++++++ include/drm/drm_fourcc.h | 3 ++ 2 files changed, 63 insertions(+) diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c index f85650c3463a..b56e773f9f63 100644 --- a/drivers/gpu/drm/drm_fourcc.c +++ b/drivers/gpu/drm/drm_fourcc.c @@ -432,6 +432,66 @@ bool drm_format_is_yuv(uint32_t format) } EXPORT_SYMBOL(drm_format_is_yuv); +/** + * drm_format_is_yuv_packed - check that the format is a YUV format with data + * laid in a single plane + * @format: pixel format + * + * Returns: + * A boolean indicating whether the format is a packed YUV format + */ +bool drm_format_is_yuv_packed(uint32_t format) +{ + const struct drm_format_info *info; + + info = drm_format_info(format); + if (!info) + return false; + + return drm_format_info_is_yuv_packed(info); +} +EXPORT_SYMBOL(drm_format_is_yuv_packed); + +/** + * drm_format_is_yuv_semiplanar - check that the format is a YUV format with + * data laid in two planes (luminance and chrominance) + * @format: pixel format + * + * Returns: + * A boolean indicating whether the format is a semiplanar YUV format + */ +bool drm_format_is_yuv_semiplanar(uint32_t format) +{ + const struct drm_format_info *info; + + info = drm_format_info(format); + if (!info) + return false; + + return drm_format_info_is_yuv_semiplanar(info); +} +EXPORT_SYMBOL(drm_format_is_yuv_semiplanar); + +/** + * drm_format_is_yuv_planar - check that the format is a YUV format with data + * laid in three planes (one for each YUV component) + * @format: pixel format + * + * Returns: + * A boolean indicating whether the format is a planar YUV format + */ +bool drm_format_is_yuv_planar(uint32_t format) +{ + const struct drm_format_info *info; + + info = drm_format_info(format); + if (!info) + return false; + + return drm_format_info_is_yuv_planar(info); +} +EXPORT_SYMBOL(drm_format_is_yuv_planar); + /** * drm_format_info_block_width - width in pixels of block. * @info: pixel format info diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h index f43d5ba412fb..b652b711df1a 100644 --- a/include/drm/drm_fourcc.h +++ b/include/drm/drm_fourcc.h @@ -200,6 +200,9 @@ int drm_format_vert_chroma_subsampling(uint32_t format); int drm_format_plane_width(int width, uint32_t format, int plane); int drm_format_plane_height(int height, uint32_t format, int plane); bool drm_format_is_yuv(uint32_t format); +bool drm_format_is_yuv_packed(uint32_t format); +bool drm_format_is_yuv_semiplanar(uint32_t format); +bool drm_format_is_yuv_planar(uint32_t format); unsigned int drm_format_info_block_width(const struct drm_format_info *info, int plane); unsigned int drm_format_info_block_height(const struct drm_format_info *info, -- 2.19.1