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u_vbuf: Regard non-constant vbufs with non-instance elements as free

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In the case of unroll_indices, we can regard all non-constant
vertex buffers with only non-instance vertex elements as incompatible
and thus free.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2807>
This commit is contained in:
Paul Cercueil
2019-11-19 22:10:10 +01:00
committed by Marge Bot
parent 87a6029ccf
commit c6ef79c488
1 changed files with 13 additions and 4 deletions
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17
src/gallium/auxiliary/util/u_vbuf.c
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@@ -533,14 +533,15 @@ u_vbuf_translate_buffers(struct u_vbuf *mgr, struct translate_key *key,
static boolean
u_vbuf_translate_find_free_vb_slots(struct u_vbuf *mgr,
unsigned mask[VB_NUM])
unsigned mask[VB_NUM],
unsigned extra_free_vb_mask)
{
unsigned type;
unsigned fallback_vbs[VB_NUM];
/* Set the bit for each buffer which is incompatible, or isn't set. */
uint32_t unused_vb_mask =
mgr->ve->incompatible_vb_mask_all | mgr->incompatible_vb_mask |
~mgr->enabled_vb_mask;
(mgr->ve->incompatible_vb_mask_all | mgr->incompatible_vb_mask |
~mgr->enabled_vb_mask | extra_free_vb_mask) & mgr->allowed_vb_mask;
uint32_t unused_vb_mask_orig;
boolean insufficient_buffers = false;
@@ -601,6 +602,7 @@ u_vbuf_translate_begin(struct u_vbuf *mgr,
unsigned i, type;
const unsigned incompatible_vb_mask = mgr->incompatible_vb_mask &
mgr->ve->used_vb_mask;
unsigned extra_free_vb_mask = 0;
const int start[VB_NUM] = {
start_vertex, /* VERTEX */
@@ -646,8 +648,15 @@ u_vbuf_translate_begin(struct u_vbuf *mgr,
assert(mask[VB_VERTEX] || mask[VB_INSTANCE] || mask[VB_CONST]);
/* In the case of unroll_indices, we can regard all non-constant
* vertex buffers with only non-instance vertex elements as incompatible
* and thus free.
*/
if (unroll_indices)
extra_free_vb_mask = mask[VB_VERTEX] & ~mask[VB_INSTANCE];
/* Find free vertex buffer slots. */
if (!u_vbuf_translate_find_free_vb_slots(mgr, mask)) {
if (!u_vbuf_translate_find_free_vb_slots(mgr, mask, extra_free_vb_mask)) {
return FALSE;
}