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ail: add ail_get_twiddled_block_B helper

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this is useful for sparse updates.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33682>
This commit is contained in:
Alyssa Rosenzweig 2025-01-09 15:25:43 -05:00 • committed by Marge Bot
parent 78ca483940
commit b842a7732d
1 changed files with 30 additions and 0 deletions
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30
src/asahi/layout/layout.h
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@ -263,6 +263,36 @@ ail_get_blocksize_B(const struct ail_layout *layout)
return util_format_get_blocksize(layout->format);
}
static inline uint32_t
ail_get_twiddled_block_B(const struct ail_layout *layout, unsigned level,
uint32_t x_px, uint32_t y_px, uint32_t z_px)
{
assert(layout->tiling == AIL_TILING_TWIDDLED ||
layout->tiling == AIL_TILING_TWIDDLED_COMPRESSED);
assert(level < layout->levels);
unsigned x_el = util_format_get_nblocksx(layout->format, x_px);
unsigned y_el = util_format_get_nblocksy(layout->format, y_px);
struct ail_tile tile_size = layout->tilesize_el[level];
assert((x_el % tile_size.width_el) == 0 && "must be aligned");
assert((y_el % tile_size.height_el) == 0 && "must be aligned");
unsigned stride_el = layout->stride_el[level];
unsigned tile_area_el = tile_size.width_el * tile_size.height_el;
unsigned tiles_per_row = DIV_ROUND_UP(stride_el, tile_size.width_el);
unsigned y_rowtile = y_el / tile_size.height_el;
unsigned y_tile = y_rowtile * tiles_per_row;
unsigned tile_idx = y_tile + (x_el / tile_size.width_el);
unsigned tile_offset_el = tile_idx * tile_area_el;
unsigned tile_offset_B = tile_offset_el * ail_get_blocksize_B(layout);
return ail_get_layer_level_B(layout, z_px, level) + tile_offset_B;
}
static inline unsigned
ail_effective_width_sa(unsigned width_px, unsigned sample_count_sa)
{