On 05/22/2018 05:26 PM, Maarten Lankhorst wrote:
It is default behavior that using the filed "cpp" to calculate the pixel in many drivers. I would suggest use a new filed called bits per pixel (bpp) instead of the old cpp. The one used in the Gstreamer is more complex: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-GstVideoAlignment.html#GstVideoFormatInfo As the struct drm_format_info only a kernel internal data structure, it doesn't need to update the user-space interface like libdrm.Op 20-05-18 om 19:17 schreef Randy Li:This pixel format is a fully packed and 10bits variant of NV12. A luma pixel would take 10bits in memory, without any filled bits between pixels in a stride. The color gamut follows the BT.2020 standard. Signed-off-by: Randy Li <ay...@soulik.info> --- drivers/gpu/drm/drm_fourcc.c | 1 + include/uapi/drm/drm_fourcc.h | 3 +++ 2 files changed, 4 insertions(+) diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c index 5ca6395cd4d3..1f43967c4013 100644 --- a/drivers/gpu/drm/drm_fourcc.c +++ b/drivers/gpu/drm/drm_fourcc.c @@ -173,6 +173,7 @@ const struct drm_format_info *__drm_format_info(u32 format) { .format = DRM_FORMAT_UYVY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1 }, { .format = DRM_FORMAT_VYUY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1 }, { .format = DRM_FORMAT_AYUV, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true }, + { .format = DRM_FORMAT_NV12_10LE40, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 2 },Hm, the cpp value might give problems because it rounds down, not sure how we should handle that? Set to zero?
};unsigned int i;diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index e04613d30a13..8eabf01e966f 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -140,6 +140,9 @@ extern "C" { #define DRM_FORMAT_NV61 fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */ #define DRM_FORMAT_NV24 fourcc_code('N', 'V', '2', '4') /* non-subsampled Cr:Cb plane */ #define DRM_FORMAT_NV42 fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */ +/* A fully packed variant of NV12_10LE32 */ +#define DRM_FORMAT_NV12_10LE40 fourcc_code('R', 'K', '2', '0') /* 2x2 subsampled Cr:Cb plane */ +/** 3 plane YCbCr_______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
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