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util: Add a helper for querying sparse tile sizes

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Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29408>
This commit is contained in:
Konstantin Seurer 2024-05-06 16:27:57 +02:00 • committed by Marge Bot
parent a603cc0633
commit eb64ce4386
2 changed files with 25 additions and 0 deletions
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23
src/util/format/u_format.c
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@ -1520,3 +1520,26 @@ util_format_get_max_channel_size(enum pipe_format format)
8 : desc->channel[max_src_chan].size; 8 : desc->channel[max_src_chan].size;
} }
} }
static uint32_t blocksizes_64kb[5][6][3] = {
/* 3D 2D 1 sample 2D 2 samples 2D 4 samples 2D 8 samples 2D 16 samples) */
{ { 64, 32, 32 }, { 256, 256, 1 }, { 128, 256, 1 }, { 128, 128, 1 }, { 64, 128, 1 }, { 64, 64, 1 } }, /* 8 bits */
{ { 32, 32, 32 }, { 256, 128, 1 }, { 128, 128, 1 }, { 128, 64, 1 }, { 64, 64, 1 }, { 64, 32, 1 } }, /* 16 bits */
{ { 32, 32, 16 }, { 128, 128, 1 }, { 64, 128, 1 }, { 64, 64, 1 }, { 32, 64, 1 }, { 32, 32, 1 } }, /* 32 bits */
{ { 32, 16, 16 }, { 128, 64, 1 }, { 64, 64, 1 }, { 64, 32, 1 }, { 32, 32, 1 }, { 32, 16, 1 } }, /* 64 bits */
{ { 16, 16, 16 }, { 64, 64, 1 }, { 32, 64, 1 }, { 32, 32, 1 }, { 16, 32, 1 }, { 16, 16, 1 } }, /* 128 bits */
};
uint32_t
util_format_get_tilesize(enum pipe_format format, uint32_t dimensions, uint32_t samples, uint32_t axis)
{
if (dimensions == 1)
return axis == 0 ? 64 * 1024 : 1;
uint32_t kind = 0;
if (dimensions == 2)
kind = util_logbase2(samples) + 1;
uint32_t block_size_log2 = util_logbase2_ceil(util_format_get_blocksize(format));
return blocksizes_64kb[block_size_log2][kind][axis];
}

2
src/util/format/u_format.h
View file

@ -1809,6 +1809,8 @@ unsigned util_format_get_last_component(enum pipe_format format);
int util_format_get_largest_non_void_channel(enum pipe_format format); int util_format_get_largest_non_void_channel(enum pipe_format format);
unsigned util_format_get_max_channel_size(enum pipe_format format); unsigned util_format_get_max_channel_size(enum pipe_format format);
uint32_t util_format_get_tilesize(enum pipe_format format, uint32_t dimensions, uint32_t samples, uint32_t axis);
#ifdef __cplusplus #ifdef __cplusplus
} // extern "C" { } // extern "C" {
#endif #endif