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-rw-r--r--src/mesa/drivers/dri/i965/brw_draw_upload.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c
index 6d9e65e9cfa..b651fd202cd 100644
--- a/src/mesa/drivers/dri/i965/brw_draw_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c
@@ -474,8 +474,8 @@ brw_prepare_vertices(struct brw_context *brw)
if (glarray->InstanceDivisor) {
if (brw->num_instances) {
start = offset + glarray->StrideB * brw->baseinstance;
- range = (glarray->StrideB * ((brw->num_instances /
- glarray->InstanceDivisor) - 1) +
+ range = (glarray->StrideB * ((brw->num_instances - 1) /
+ glarray->InstanceDivisor) +
glarray->_ElementSize);
}
} else {