在 2019/10/11 下午3:22, james qian wang (Arm Technology China) 写道:
On Fri, Oct 11, 2019 at 03:07:22PM +0800, sandy.huang wrote:在 2019/10/11 下午2:44, james qian wang (Arm Technology China) 写道:On Fri, Oct 11, 2019 at 11:35:53AM +0800, sandy.huang wrote:Hi james.qian.wang, Thank for you remind, fou some unknow reason, i miss the the mail from you:(, i get this message from https://patchwork.kernel.org/patch/11161937/ sorry about that. About the format block describe, I also found some unreasonable, this format need 2 line aligned, so the block_h need to sed as 2, and the char_per_block need set as w * h * 10 for y plane, and w * h * 2 * 10 for uv plane, so the following describe maybe more correct, thanks. { .format = DRM_FORMAT_NV12_10, .depth = 0, .num_planes = 2, .char_per_block = { 10, 10, 0 }, .block_w = { 4, 2, 0 }, .block_h = { 2, 2, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true},Hi Sandy: I think for such NV12 YUV-422 (hsub = 2, vsub = 2) 2x2 subsampled format the block size can be: the Y plane: 2x2; The UV plane: 1x2; (H direction sample 1 Cb and 1Cr, V direction 2 lines got 2) Then: .char_per_block = {5, 5, 0} block_w = {2, 1, 0}. block_h = {2, 2, 0}; Thanks JamesHi James, If the block_w is 2 pixel, one line size at block is 2*10 bit %8 != 0,Hi Sandy: you got a mistake here, the bpp of UV plane is 20, 10bit Cb + 10 bit Cr.
here is for y plane.
although we use block to describe this format, but actually the data is still stored one line by one line, still need 4 pixel aligned. so i think here need use 4pixel*2line for per blockI think this is your hardware specific requirement. Thanks James
yes, this is a new format first used at rockchip platform. Thanks, sandy.huang
Thanks, sandy.huang..hsub = 2, .vsub = 2, .is_yuv = true}, { .format = DRM_FORMAT_NV21_10, .depth = 0, .num_planes = 2, .char_per_block = { 10, 10, 0 }, .block_w = { 4, 2, 0 }, .block_h = { 2, 2, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true}, { .format = DRM_FORMAT_NV16_10, .depth = 0, .num_planes = 2, .char_per_block = { 10, 10, 0 }, .block_w = { 4, 2, 0 }, .block_h = { 2, 2, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true}, { .format = DRM_FORMAT_NV61_10, .depth = 0, .num_planes = 2, .char_per_block = { 10, 10, 0 }, .block_w = { 4, 2, 0 }, .block_h = { 2, 2, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true}, { .format = DRM_FORMAT_NV24_10, .depth = 0, .num_planes = 2, .char_per_block = { 10, 10, 0 }, .block_w = { 4, 2, 0 }, .block_h = { 2, 2, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true}, { .format = DRM_FORMAT_NV42_10, .depth = 0, .num_planes = 2, .char_per_block = { 10, 10, 0 }, .block_w = { 4, 2, 0 }, .block_h = { 2, 2, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true},{ .format = DRM_FORMAT_P016, .depth = 0, .num_planes =2,.char_per_block = { 2, 4, 0 }, .block_w = { 1, 0, 0 },.block_h = { 1, 0, 0 },.hsub = 2, .vsub = 2, .is_yuv = true}, + { .format = DRM_FORMAT_NV12_10, .depth = 0, .num_planes= 2,+ .char_per_block = { 5, 10, 0 }, .block_w = { 4, 4, 0 },.block_h = { 4, 4, 0 },Hi Sandy: Their is a problem here for char_per_block size of plane[0]: Since: 5 * 8 != 4 * 4 * 10; Seems you mis-set the block_w/h, per your block size the block is 2x2, andit should be:.char_per_block = { 5, 10, 0 }, .block_w = { 2, 2, 0 }, .block_h = { 2,2, 0 },Best Regards: James在 2019/10/8 下午7:49, sandy.huang 写道:在 2019/10/8 下午7:33, Ville Syrjälä 写道:On Tue, Oct 08, 2019 at 10:40:20AM +0800, sandy.huang wrote:Hi ville syrjala, 在 2019/9/30 下午6:48, Ville Syrjälä 写道:On Thu, Sep 26, 2019 at 04:24:47PM +0800, Sandy Huang wrote:These new format is supported by some rockchip socs: DRM_FORMAT_NV12_10/DRM_FORMAT_NV21_10 DRM_FORMAT_NV16_10/DRM_FORMAT_NV61_10 DRM_FORMAT_NV24_10/DRM_FORMAT_NV42_10 Signed-off-by: Sandy Huang <hjc@xxxxxxxxxxxxxx> --- drivers/gpu/drm/drm_fourcc.c | 18 ++++++++++++++++++ include/uapi/drm/drm_fourcc.h | 14 ++++++++++++++ 2 files changed, 32 insertions(+) diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c index c630064..ccd78a3 100644 --- a/drivers/gpu/drm/drm_fourcc.c +++ b/drivers/gpu/drm/drm_fourcc.c @@ -261,6 +261,24 @@ const struct drm_format_info *__drm_format_info(u32 format) { .format = DRM_FORMAT_P016, .depth = 0, .num_planes = 2, .char_per_block = { 2, 4, 0 }, .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true}, + { .format = DRM_FORMAT_NV12_10, .depth = 0, .num_planes = 2, + .char_per_block = { 5, 10, 0 }, .block_w = { 4, 4, 0 }, .block_h = { 4, 4, 0 }, + .hsub = 2, .vsub = 2, .is_yuv = true}, + { .format = DRM_FORMAT_NV21_10, .depth = 0, .num_planes = 2, + .char_per_block = { 5, 10, 0 }, .block_w = { 4, 4, 0 }, .block_h = { 4, 4, 0 }, + .hsub = 2, .vsub = 2, .is_yuv = true}, + { .format = DRM_FORMAT_NV16_10, .depth = 0, .num_planes = 2, + .char_per_block = { 5, 10, 0 }, .block_w = { 4, 4, 0 }, .block_h = { 4, 4, 0 }, + .hsub = 2, .vsub = 1, .is_yuv = true}, + { .format = DRM_FORMAT_NV61_10, .depth = 0, .num_planes = 2, + .char_per_block = { 5, 10, 0 }, .block_w = { 4, 4, 0 }, .block_h = { 4, 4, 0 }, + .hsub = 2, .vsub = 1, .is_yuv = true}, + { .format = DRM_FORMAT_NV24_10, .depth = 0, .num_planes = 2, + .char_per_block = { 5, 10, 0 }, .block_w = { 4, 4, 0 }, .block_h = { 4, 4, 0 }, + .hsub = 1, .vsub = 1, .is_yuv = true}, + { .format = DRM_FORMAT_NV42_10, .depth = 0, .num_planes = 2, + .char_per_block = { 5, 10, 0 }, .block_w = { 4, 4, 0 }, .block_h = { 4, 4, 0 }, + .hsub = 1, .vsub = 1, .is_yuv = true}, { .format = DRM_FORMAT_P210, .depth = 0, .num_planes = 2, .char_per_block = { 2, 4, 0 }, .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 0 }, .hsub = 2, diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index 3feeaa3..08e2221 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -238,6 +238,20 @@ extern "C" { #define DRM_FORMAT_NV42 fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */ /* + * 2 plane YCbCr + * index 0 = Y plane, Y3:Y2:Y1:Y0 10:10:10:10 + * index 1 = Cb:Cr plane, Cb3:Cr3:Cb2:Cr2:Cb1:Cr1:Cb0:Cr0 10:10:10:10:10:10:10:10 + * or + * index 1 = Cr:Cb plane, Cr3:Cb3:Cr2:Cb2:Cr1:Cb1:Cr0:Cb0 10:10:10:10:10:10:10:10So now you're defining it as some kind of byte aligned block. With that specifying endianness would now make sense since otherwise this tells us absolutely nothing about the memory layout. So I'd either do that, or go back to not specifying anything and use some weasel words like "mamory layout is implementation defined" which of course means no one can use it for anything that involves any kind of cross vendor stuff./* * 2 plane YCbCr * index 0 = Y plane, [39: 0] Y3:Y2:Y1:Y0 10:10:10:10 little endian * index 1 = Cb:Cr plane, [79: 0] Cb3:Cr3:Cb2:Cr2:Cb1:Cr1:Cb0:Cr0 10:10:10:10:10:10:10:10 little endian * or * index 1 = Cr:Cb plane, [79: 0] Cr3:Cb3:Cr2:Cb2:Cr1:Cb1:Cr0:Cb0 10:10:10:10:10:10:10:10 little endian */ Is this description ok?Seems OK to me, if it actually describes the format correctly. Though I'm not sure why the CbCr is defines as an 80bit block and Y has a 40bit block. 40bits should be enough for CbCr as well.well, this is taken into account yuv444, 4 y point corresponding with 4 uv point. if only describes the layout memory, here can change to 40bit block. thanks.+ */ +#define DRM_FORMAT_NV12_10 fourcc_code('N', 'A', '1', '2') /* 2x2 subsampled Cr:Cb plane */ +#define DRM_FORMAT_NV21_10 fourcc_code('N', 'A', '2', '1') /* 2x2 subsampled Cb:Cr plane */ +#define DRM_FORMAT_NV16_10 fourcc_code('N', 'A', '1', '6') /* 2x1 subsampled Cr:Cb plane */ +#define DRM_FORMAT_NV61_10 fourcc_code('N', 'A', '6', '1') /* 2x1 subsampled Cb:Cr plane */ +#define DRM_FORMAT_NV24_10 fourcc_code('N', 'A', '2', '4') /* non-subsampled Cr:Cb plane */ +#define DRM_FORMAT_NV42_10 fourcc_code('N', 'A', '4', '2') /* non-subsampled Cb:Cr plane */ + +/* * 2 plane YCbCr MSB aligned * index 0 = Y plane, [15:0] Y:x [10:6] little endian * index 1 = Cr:Cb plane, [31:0] Cr:x:Cb:x [10:6:10:6] little endian -- 2.7.4 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel_______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
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