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nir/xfb_info: nir_gather_xfb_info_from_intrinsics update nir xfb_info

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Use this function to update nir_shader->xfb_info.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19489>
This commit is contained in:
Qiang Yu 2022-12-04 21:42:08 +08:00 • committed by Marge Bot
parent b6c172f26c
commit 49cfbe1fed
2 changed files with 12 additions and 19 deletions
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26
src/compiler/nir/nir_gather_xfb_info.c
View file

@ -317,20 +317,14 @@ compare_xfb_out(const void *pa, const void *pb)
* Optionally return slot_to_register, an optional table to translate * Optionally return slot_to_register, an optional table to translate
* gl_varying_slot to "base" indices. * gl_varying_slot to "base" indices.
*/ */
nir_xfb_info * void
nir_gather_xfb_info_from_intrinsics(nir_shader *nir, nir_gather_xfb_info_from_intrinsics(nir_shader *nir)
int slot_to_register[NUM_TOTAL_VARYING_SLOTS])
{ {
nir_function_impl *impl = nir_shader_get_entrypoint(nir); nir_function_impl *impl = nir_shader_get_entrypoint(nir);
uint8_t buffer_to_stream[MAX_XFB_BUFFERS] = {0}; uint8_t buffer_to_stream[MAX_XFB_BUFFERS] = {0};
uint8_t buffer_mask = 0; uint8_t buffer_mask = 0;
uint8_t stream_mask = 0; uint8_t stream_mask = 0;
if (slot_to_register) {
memset(slot_to_register, -1,
sizeof(slot_to_register[0] * NUM_TOTAL_VARYING_SLOTS));
}
/* Gather xfb outputs. */ /* Gather xfb outputs. */
struct util_dynarray array = {0}; struct util_dynarray array = {0};
@ -368,9 +362,6 @@ nir_gather_xfb_info_from_intrinsics(nir_shader *nir,
buffer_mask |= BITFIELD_BIT(out.buffer); buffer_mask |= BITFIELD_BIT(out.buffer);
stream_mask |= BITFIELD_BIT(stream); stream_mask |= BITFIELD_BIT(stream);
if (slot_to_register)
slot_to_register[sem.location] = nir_intrinsic_base(intr);
/* No elements before component_offset are allowed to be set. */ /* No elements before component_offset are allowed to be set. */
assert(!(out.component_mask & BITFIELD_MASK(out.component_offset))); assert(!(out.component_mask & BITFIELD_MASK(out.component_offset)));
} }
@ -382,7 +373,7 @@ nir_gather_xfb_info_from_intrinsics(nir_shader *nir,
int count = util_dynarray_num_elements(&array, nir_xfb_output_info); int count = util_dynarray_num_elements(&array, nir_xfb_output_info);
if (!count) if (!count)
return NULL; return;
if (count > 1) { if (count > 1) {
/* Sort outputs by buffer, location, and component. */ /* Sort outputs by buffer, location, and component. */
@ -436,10 +427,10 @@ nir_gather_xfb_info_from_intrinsics(nir_shader *nir,
assert(outputs[i].component_mask); assert(outputs[i].component_mask);
/* Create nir_xfb_info. */ /* Create nir_xfb_info. */
nir_xfb_info *info = calloc(1, nir_xfb_info_size(count)); nir_xfb_info *info = nir_xfb_info_create(nir, count);
if (!info) { if (!info) {
util_dynarray_fini(&array); util_dynarray_fini(&array);
return NULL; return;
} }
/* Fill nir_xfb_info. */ /* Fill nir_xfb_info. */
@ -452,15 +443,18 @@ nir_gather_xfb_info_from_intrinsics(nir_shader *nir,
/* Set strides. */ /* Set strides. */
for (unsigned i = 0; i < MAX_XFB_BUFFERS; i++) { for (unsigned i = 0; i < MAX_XFB_BUFFERS; i++) {
if (buffer_mask & BITFIELD_BIT(i)) if (buffer_mask & BITFIELD_BIT(i))
info->buffers[i].stride = nir->info.xfb_stride[i]; info->buffers[i].stride = nir->info.xfb_stride[i] * 4;
} }
/* Set varying_count. */ /* Set varying_count. */
for (unsigned i = 0; i < count; i++) for (unsigned i = 0; i < count; i++)
info->buffers[outputs[i].buffer].varying_count++; info->buffers[outputs[i].buffer].varying_count++;
/* Replace original xfb info. */
ralloc_free(nir->xfb_info);
nir->xfb_info = info;
util_dynarray_fini(&array); util_dynarray_fini(&array);
return info;
} }
void void

5
src/compiler/nir/nir_xfb_info.h
View file

@ -82,9 +82,8 @@ nir_gather_xfb_info_with_varyings(nir_shader *shader,
void *mem_ctx, void *mem_ctx,
nir_xfb_varyings_info **varyings_info); nir_xfb_varyings_info **varyings_info);
nir_xfb_info * void
nir_gather_xfb_info_from_intrinsics(nir_shader *nir, nir_gather_xfb_info_from_intrinsics(nir_shader *nir);
int slot_to_register[NUM_TOTAL_VARYING_SLOTS]);
void void
nir_print_xfb_info(nir_xfb_info *info, FILE *fp); nir_print_xfb_info(nir_xfb_info *info, FILE *fp);