llvmpipe: EXT_transform_feedback support (v1.1)

I'd written most of this ages ago, but never finished it off.

This passes 115/130 piglit tests so far. I'll look into the
others as time permits.

v1.1: fix calloc return check as suggested by Jose.

Reviewed-by: Jose Fonseca <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_query.h b/src/gallium/drivers/llvmpipe/lp_query.h
index cacbd9d0b8c..19d977fd2e4 100644
--- a/src/gallium/drivers/llvmpipe/lp_query.h
+++ b/src/gallium/drivers/llvmpipe/lp_query.h
@@ -45,6 +45,8 @@ struct llvmpipe_query {
    uint64_t count[LP_MAX_THREADS];  /* a counter for each thread */
    struct lp_fence *fence;          /* fence from last scene this was binned in */
    unsigned type;                   /* PIPE_QUERY_* */
+   unsigned num_primitives_generated;
+   unsigned num_primitives_written;
 };