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util: added util_set_index_buffer()

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Like util_set_vertex_buffers_count(), this basically just copies a
pipe_index_buffer object, taking care of refcounting.
This commit is contained in:
Brian Paul 2015-09-01 16:29:17 -06:00
parent 47b4efc710
commit 84dad65088
2 changed files with 18 additions and 0 deletions
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15
src/gallium/auxiliary/util/u_helpers.c
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@ -88,3 +88,18 @@ void util_set_vertex_buffers_count(struct pipe_vertex_buffer *dst,
*dst_count = util_last_bit(enabled_buffers);
}
void
util_set_index_buffer(struct pipe_index_buffer *dst,
const struct pipe_index_buffer *src)
{
if (src) {
pipe_resource_reference(&dst->buffer, src->buffer);
memcpy(dst, src, sizeof(*dst));
}
else {
pipe_resource_reference(&dst->buffer, NULL);
memset(dst, 0, sizeof(*dst));
}
}

3
src/gallium/auxiliary/util/u_helpers.h
View file

@ -44,6 +44,9 @@ void util_set_vertex_buffers_count(struct pipe_vertex_buffer *dst,
const struct pipe_vertex_buffer *src,
unsigned start_slot, unsigned count);
void util_set_index_buffer(struct pipe_index_buffer *dst,
const struct pipe_index_buffer *src);
#ifdef __cplusplus
}
#endif