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 <paul.kocialkowski@xxxxxxxxxxx>
---
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
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel
