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radv/bvh: Add radv_aabb16 and use it for box16 nodes

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This commit is contained in:
Konstantin Seurer 2025-10-14 20:53:45 +02:00
parent 9a4e00a925
commit 4950f6e23d
2 changed files with 14 additions and 4 deletions
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12
src/amd/vulkan/bvh/bvh.h
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@ -34,6 +34,7 @@
#else
#include <vulkan/vulkan.h>
typedef uint16_t float16_t;
typedef struct radv_aabb16 radv_aabb16;
#endif
struct radv_accel_struct_serialization_header {
@ -112,9 +113,18 @@ struct radv_bvh_instance_node {
mat3x4 otw_matrix;
};
struct radv_aabb16 {
float16_t min_x;
float16_t min_y;
float16_t min_z;
float16_t max_x;
float16_t max_y;
float16_t max_z;
};
struct radv_bvh_box16_node {
uint32_t children[4];
float16_t coords[4][2][3];
radv_aabb16 coords[4];
};
struct radv_bvh_box32_node {

6
src/amd/vulkan/radv_rra_gfx10_3.c
View file

@ -376,9 +376,9 @@ radv_gather_bvh_stats_gfx10_3(const uint8_t *bvh, uint32_t node_id, uint32_t dep
for (uint32_t i = 0; i < 4; i++) {
if (box16->children[i] != 0xffffffff) {
float extent[3] = {
_mesa_half_to_float(box16->coords[i][1][0]) - _mesa_half_to_float(box16->coords[i][0][0]),
_mesa_half_to_float(box16->coords[i][1][1]) - _mesa_half_to_float(box16->coords[i][0][1]),
_mesa_half_to_float(box16->coords[i][1][2]) - _mesa_half_to_float(box16->coords[i][0][2]),
_mesa_half_to_float(box16->coords[i].max_x) - _mesa_half_to_float(box16->coords[i].min_x),
_mesa_half_to_float(box16->coords[i].max_y) - _mesa_half_to_float(box16->coords[i].min_y),
_mesa_half_to_float(box16->coords[i].max_z) - _mesa_half_to_float(box16->coords[i].min_z),
};
float surface_area = 2 * (extent[0] * extent[1] + extent[0] * extent[2] + extent[1] * extent[2]);
radv_gather_bvh_stats_gfx10_3(bvh, box16->children[i], depth + 1, surface_area, blas_sah, stats);