fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-06-09 23:08:18 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

kk: Use subgroups for tessellation prefix count since they are now fixed

Browse source 
Reviewed-by: squidbus <squidbus@proton.me>
Signed-off-by: Aitor Camacho <aitor@lunarg.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/42024>
This commit is contained in:
Aitor Camacho 2026-06-04 23:15:59 +09:00 • committed by Marge Bot
parent 25cef2e476
commit 7bd8954086
2 changed files with 11 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
src/kosmickrisp/libkk/kk_geometry.cl
View file

@ -10,21 +10,22 @@
#include "poly/geometry.h"
#include "poly/tessellator.h"
KERNEL(1)
KERNEL(1024)
libkk_prefix_sum_tess(global struct poly_tess_params *p)
{
local uint scratch[32];
poly_prefix_sum(scratch, p->counts, p->nr_patches, 1 /* words */,
0 /* word */, 1024);
/* After prefix summing, we know the total # of indices, so allocate the
* index buffer now. Elect a thread for the allocation.
*/
barrier(CLK_LOCAL_MEM_FENCE);
if (cl_local_id.x != 0)
return;
/* The last element of an inclusive prefix sum is the total sum */
uint total = 0;
if (p->nr_patches > 0) {
for (uint32_t i = 0u; i < p->nr_patches; ++i) {
total += p->counts[i];
p->counts[i] = total;
}
}
uint total = p->nr_patches > 0 ? p->counts[p->nr_patches - 1] : 0;
/* Allocate 4-byte indices */
uint32_t elsize_B = sizeof(uint32_t);

2
src/kosmickrisp/vulkan/kk_cmd_draw.c
View file

@ -1768,7 +1768,7 @@ kk_launch_tess(struct kk_cmd_buffer *cmd, struct kk_draw_data draw,
state);
mtl_memory_barrier_with_scope(enc, MTL_BARRIER_SCOPE_BUFFERS);
libkk_prefix_sum_tess(cmd, kk_grid_1d(1u), true, state);
libkk_prefix_sum_tess(cmd, kk_grid_1d(1024u), true, state);
mtl_memory_barrier_with_scope(enc, MTL_BARRIER_SCOPE_BUFFERS);
libkk_tessellate(cmd, grid_tess, true, info.mode, POLY_TESS_MODE_WITH_COUNTS,