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draw: fix non-indexed draw calls if there's an index buffer

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pipe_draw_info::indexed determines if it should be indexed and not
the presence of an index buffer.

This fixes crashes in r300g.

NOTE: This is a candidate for the stable branches.

Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Marek Olšák 2012-09-14 17:03:25 +02:00
parent bbb2ebe2fc
commit 2988fa940e
3 changed files with 6 additions and 8 deletions
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2
src/gallium/auxiliary/draw/draw_context.c
View file

@ -621,7 +621,7 @@ draw_set_indexes(struct draw_context *draw,
elem_size == 2 ||
elem_size == 4);
draw->pt.user.elts = elements;
draw->pt.user.eltSize = elem_size;
draw->pt.user.eltSizeIB = elem_size;
}

1
src/gallium/auxiliary/draw/draw_private.h
View file

@ -174,6 +174,7 @@ struct draw_context
/** vertex element/index buffer (ex: glDrawElements) */
const void *elts;
/** bytes per index (0, 1, 2 or 4) */
unsigned eltSizeIB;
unsigned eltSize;
int eltBias;
unsigned min_index;

11
src/gallium/auxiliary/draw/draw_pt.c
View file

@ -362,7 +362,7 @@ draw_pt_arrays_restart(struct draw_context *draw,
assert(info->primitive_restart);
if (draw->pt.user.elts) {
if (draw->pt.user.eltSize) {
/* indexed prims (draw_elements) */
cur_start = start;
cur_count = 0;
@ -433,12 +433,8 @@ draw_arrays_instanced(struct draw_context *draw,
info.count = count;
info.start_instance = startInstance;
info.instance_count = instanceCount;
info.indexed = (draw->pt.user.elts != NULL);
if (!info.indexed) {
info.min_index = start;
info.max_index = start + count - 1;
}
info.min_index = start;
info.max_index = start + count - 1;
draw_vbo(draw, &info);
}
@ -465,6 +461,7 @@ draw_vbo(struct draw_context *draw,
draw->pt.user.eltBias = info->index_bias;
draw->pt.user.min_index = info->min_index;
draw->pt.user.max_index = info->max_index;
draw->pt.user.eltSize = info->indexed ? draw->pt.user.eltSizeIB : 0;
if (0)
debug_printf("draw_vbo(mode=%u start=%u count=%u):\n",