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u_vbuf_mgr: fix uploading with a non-zero index bias

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Also don't rely on pipe_draw_info being set correctly.

NOTE: This is a candidate for the 7.11 branch.
(cherry picked from commit 60a77cf316)
This commit is contained in:
Marek Olšák 2011-09-26 03:30:24 +02:00
parent 012b2057e8
commit 37c2c9688c
1 changed files with 11 additions and 4 deletions
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15
src/gallium/auxiliary/util/u_vbuf_mgr.c
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@ -641,11 +641,18 @@ u_vbuf_draw_begin(struct u_vbuf_mgr *mgrb,
u_vbuf_compute_max_index(mgr);
min_index = info->min_index - info->index_bias;
if (info->max_index == ~0) {
max_index = mgr->b.max_index;
if (info->indexed) {
min_index = info->min_index;
if (info->max_index == ~0) {
max_index = mgr->b.max_index;
} else {
max_index = MIN2(info->max_index, mgr->b.max_index);
}
min_index += info->index_bias;
max_index += info->index_bias;
} else {
max_index = MIN2(info->max_index - info->index_bias, mgr->b.max_index);
min_index = info->start;
max_index = info->start + info->count - 1;
}
/* Translate vertices with non-native layouts or formats. */