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st/mesa: improved draw_range_elements code

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Don't use pipe->draw_range_elements() if min_index=max_index=~0 since
that doesn't provide any useful info.

Also, implement the loop around pipe->draw_range_elements() when
nr_prims > 1.
This commit is contained in:
Brian Paul 2010-02-12 15:40:57 -07:00
parent b9b4e7724e
commit ff37205f93
1 changed files with 7 additions and 9 deletions
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16
src/mesa/state_tracker/st_draw.c
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@ -645,20 +645,18 @@ st_draw_vbo(GLcontext *ctx,
}
/* draw */
if (nr_prims == 1 && pipe->draw_range_elements != NULL) {
i = 0;
if (pipe->draw_range_elements && min_index != ~0 && max_index != ~0) {
/* XXX: exercise temporary path to pass min/max directly
* through to driver & draw module. These interfaces still
* need a bit of work...
*/
prim = translate_prim( ctx, prims[i].mode );
for (i = 0; i < nr_prims; i++) {
prim = translate_prim( ctx, prims[i].mode );
pipe->draw_range_elements(pipe, indexBuf, indexSize,
min_index,
max_index,
prim,
prims[i].start + indexOffset, prims[i].count);
pipe->draw_range_elements(pipe, indexBuf, indexSize,
min_index, max_index, prim,
prims[i].start + indexOffset, prims[i].count);
}
}
else {
for (i = 0; i < nr_prims; i++) {