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pan/afbc: Add helpers to query AFBC header alignment requirements

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Will be used in pan_layout.c to validate the WSI info.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Tested-by: Eric R. Smith <eric.smith@collabora.com>
Reviewed-by: Eric R. Smith <eric.smith@collabora.com>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35015>
This commit is contained in:
Boris Brezillon 2025-05-19 16:41:50 +02:00 • committed by Marge Bot
parent ce197c8018
commit 5292fef80d
1 changed files with 22 additions and 0 deletions
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22
src/panfrost/lib/pan_afbc.h
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@ -167,6 +167,28 @@ pan_afbc_subblock_size(uint64_t modifier)
return (struct pan_image_block_size){4, 4};
}
static inline uint32_t
pan_afbc_header_row_stride_align(unsigned arch, enum pipe_format format,
uint64_t modifier)
{
if (arch <= 7 || !(modifier & AFBC_FORMAT_MOD_TILED))
return 16;
if (util_format_get_blocksizebits(format) <= 32)
return 1024;
else
return 256;
}
static inline uint32_t
pan_afbc_header_align(unsigned arch, uint64_t modifier)
{
if (modifier & AFBC_FORMAT_MOD_TILED)
return 4096;
else
return 128;
}
/*
* Determine the required alignment for the body offset of an AFBC image. For
* now, this depends only on whether tiling is in use. These minimum alignments