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lima: support indexed draw with bias

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When doing an indexed draw with index_bias set to a non-zero value (e.g.
by glDrawElementsBaseVertex), the vertex buffer should be offseted by
index_bias vertices.

Add this offset when setting the vertex buffer address.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
This commit is contained in:
Icenowy Zheng
2019-10-22 22:14:56 +08:00
committed by Vasily Khoruzhick
parent f60ef0fff4
commit 8fa13db251
1 changed files with 1 additions and 1 deletions
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src/gallium/drivers/lima/lima_draw.c
+1 -1
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@@ -1154,7 +1154,7 @@ lima_update_gp_attribute_info(struct lima_context *ctx, const struct pipe_draw_i
lima_submit_add_bo(ctx->gp_submit, res->bo, LIMA_SUBMIT_BO_READ);
unsigned start = info->index_size ? ctx->min_index : info->start;
unsigned start = info->index_size ? (ctx->min_index + info->index_bias) : info->start;
attribute[n++] = res->bo->va + pvb->buffer_offset + pve->src_offset
+ start * pvb->stride;
attribute[n++] = (pvb->stride << 11) |