From: Maxime Ripard <maxime.ripard@bootlin.com>
To: Daniel Vetter <daniel.vetter@intel.com>,
David Airlie <airlied@linux.ie>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Sean Paul <seanpaul@chromium.org>,
Maxime Ripard <maxime.ripard@bootlin.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
Hans Verkuil <hans.verkuil@cisco.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
linux-media@vger.kernel.org
Subject: [RFC PATCH 19/20] lib: image-formats: Add more functions
Date: Tue, 19 Mar 2019 22:57:24 +0100 [thread overview]
Message-ID: <f7196882b8aca389d99b4cba109704b4c79e0113.1553032382.git-series.maxime.ripard@bootlin.com> (raw)
In-Reply-To: <cover.92acdec88ee4c280cb74e08ea22f0075e5fa055c.1553032382.git-series.maxime.ripard@bootlin.com>
V4L2 drivers typically need a few more helpers compared to DRM drivers, so
let's add them.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
---
include/linux/image-formats.h | 4 +++-
lib/image-formats.c | 42 ++++++++++++++++++++++++++++++++++++-
2 files changed, 46 insertions(+)
diff --git a/include/linux/image-formats.h b/include/linux/image-formats.h
index fbc3a4501ebd..f1d4a2a03cc0 100644
--- a/include/linux/image-formats.h
+++ b/include/linux/image-formats.h
@@ -236,9 +236,13 @@ unsigned int image_format_plane_cpp(const struct image_format_info *format,
unsigned int image_format_plane_width(int width,
const struct image_format_info *format,
int plane);
+unsigned int image_format_plane_stride(const struct image_format_info *format,
+ int width, int plane);
unsigned int image_format_plane_height(int height,
const struct image_format_info *format,
int plane);
+unsigned int image_format_plane_size(const struct image_format_info *format,
+ int width, int height, int plane);
unsigned int image_format_block_width(const struct image_format_info *format,
int plane);
unsigned int image_format_block_height(const struct image_format_info *format,
diff --git a/lib/image-formats.c b/lib/image-formats.c
index 39f1d38ae861..c4e213a89edb 100644
--- a/lib/image-formats.c
+++ b/lib/image-formats.c
@@ -740,6 +740,26 @@ unsigned int image_format_plane_width(int width,
EXPORT_SYMBOL(image_format_plane_width);
/**
+ * image_format_plane_stride - determine the stride value
+ * @format: pointer to the image_format
+ * @width: plane width
+ * @plane: plane index
+ *
+ * Returns:
+ * The bytes per pixel value for the specified plane.
+ */
+unsigned int image_format_plane_stride(const struct image_format_info *format,
+ unsigned int width, int plane)
+{
+ if (!format || plane >= format->num_planes)
+ return 0;
+
+ return image_format_plane_width(width, format, plane) *
+ image_format_plane_cpp(format, plane);
+}
+EXPORT_SYMBOL(image_format_plane_stride);
+
+/**
* image_format_plane_height - height of the plane given the first plane
* @format: pointer to the image_format
* @height: height of the first plane
@@ -763,6 +783,28 @@ unsigned int image_format_plane_height(int height,
EXPORT_SYMBOL(image_format_plane_height);
/**
+ * image_format_plane_size - determine the size value
+ * @format: pointer to the image_format
+ * @width: plane width
+ * @height: plane width
+ * @plane: plane index
+ *
+ * Returns:
+ * The size of the plane buffer.
+ */
+unsigned int image_format_plane_size(const struct image_format_info *format,
+ unsigned int width, unsigned int height,
+ int plane)
+{
+ if (!format || plane >= format->num_planes)
+ return 0;
+
+ return image_format_plane_stride(format, width, plane) *
+ image_format_plane_height(format, height, plane);
+}
+EXPORT_SYMBOL(image_format_plane_size);
+
+/**
* image_format_block_width - width in pixels of block.
* @format: pointer to the image_format
* @plane: plane index
--
git-series 0.9.1
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next prev parent reply other threads:[~2019-03-19 21:58 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-19 21:57 [RFC PATCH 00/20] drm: Split out the formats API and move it to a common place Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 01/20] drm: Remove users of drm_format_num_planes Maxime Ripard
2019-03-20 14:16 ` Paul Kocialkowski
2019-04-02 9:43 ` Emil Velikov
2019-04-02 14:51 ` Maxime Ripard
2019-04-04 16:24 ` Emil Velikov
2019-03-19 21:57 ` [RFC PATCH 02/20] drm: Remove users of drm_format_(horz|vert)_chroma_subsampling Maxime Ripard
2019-03-20 14:19 ` Paul Kocialkowski
2019-03-19 21:57 ` [RFC PATCH 03/20] drm/fourcc: Pass the format_info pointer to drm_format_plane_cpp Maxime Ripard
2019-03-20 14:24 ` Paul Kocialkowski
2019-03-21 10:13 ` Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 04/20] drm/fourcc: Pass the format_info pointer to drm_format_plane_width/height Maxime Ripard
2019-03-20 14:26 ` Paul Kocialkowski
2019-03-19 21:57 ` [RFC PATCH 05/20] drm: Replace instances of drm_format_info by drm_get_format_info Maxime Ripard
2019-03-20 14:27 ` Paul Kocialkowski
2019-03-19 21:57 ` [RFC PATCH 06/20] lib: Add video format information library Maxime Ripard
2019-03-20 13:39 ` Boris Brezillon
2019-03-21 8:20 ` Maxime Ripard
2019-03-21 8:40 ` Boris Brezillon
2019-03-19 21:57 ` [RFC PATCH 07/20] drm/fb: Move from drm_format_info to image_format_info Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 08/20] drm/malidp: Convert to generic image format library Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 09/20] drm/client: " Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 10/20] drm/exynos: " Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 11/20] drm/i915: " Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 12/20] drm/ipuv3: " Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 13/20] drm/msm: " Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 14/20] drm/omap: " Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 15/20] drm/rockchip: " Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 16/20] drm/tegra: " Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 17/20] drm/fourcc: Remove old DRM format API Maxime Ripard
2019-03-19 21:57 ` [RFC PATCH 18/20] lib: image-formats: Add v4l2 formats support Maxime Ripard
2019-03-19 23:29 ` Nicolas Dufresne
2019-03-20 14:27 ` Ville Syrjälä
2019-03-20 15:51 ` Nicolas Dufresne
2019-03-20 16:09 ` Ville Syrjälä
2019-03-20 16:30 ` Nicolas Dufresne
2019-03-20 16:41 ` Ville Syrjälä
2019-03-20 18:27 ` Nicolas Dufresne
2019-03-20 18:39 ` Ville Syrjälä
2019-03-21 16:04 ` Paul Kocialkowski
2019-03-21 16:35 ` Ville Syrjälä
2019-03-21 19:14 ` Nicolas Dufresne
2019-03-21 21:44 ` Ville Syrjälä
2019-03-22 18:24 ` Nicolas Dufresne
2019-03-22 18:44 ` Ville Syrjälä
2019-03-22 19:25 ` Nicolas Dufresne
2019-03-22 14:42 ` Ville Syrjälä
2019-03-22 18:11 ` Nicolas Dufresne
2019-03-20 18:15 ` Brian Starkey
2019-03-21 15:47 ` Maxime Ripard
2019-03-22 19:55 ` Nicolas Dufresne
2019-04-01 14:44 ` Maxime Ripard
2019-04-11 7:24 ` Hans Verkuil
2019-04-11 7:38 ` Hans Verkuil
2019-04-11 15:55 ` Maxime Ripard
2019-04-11 7:12 ` Hans Verkuil
2019-04-11 7:15 ` Hans Verkuil
2019-03-19 21:57 ` Maxime Ripard [this message]
2019-03-19 21:57 ` [RFC PATCH 20/20] media: sun6i: Convert to the image format API Maxime Ripard
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