diff options
| author | Zack Rusin <[email protected]> | 2013-06-27 20:40:10 -0400 |
|---|---|---|
| committer | Zack Rusin <[email protected]> | 2013-06-28 05:21:20 -0400 |
| commit | 1c2e5c223da28cdffe156b6b430fcdf638909021 (patch) | |
| tree | f86833cf8b5b43134231309cc75932da000de080 /src/gallium/auxiliary/translate/translate.h | |
| parent | df4ab7974a825bf686f9dfa3474f3648e9a3ca66 (diff) | |
draw/translate: fix instancing
We were incorrectly computing the buffer offset when using the
instances. The buffer offset is always equal to:
start_instance * stride + (instance_num / instance_divisor) *
stride
We were completely ignoring the start instance quite
often producing instances that completely wrong, e.g. if
start instance = 5, instance divisor = 2, then on the first
iteration it should be:
5 * stride, not (5/2) * stride as we'd have currently, and if
start instance = 1, instance divisor = 3, then on the first
iteration it should be:
1 * stride, not 0 as we'd have.
This fixes it and adjusts all the code to the changes.
Signed-off-by: Zack Rusin <[email protected]>
Diffstat (limited to 'src/gallium/auxiliary/translate/translate.h')
| -rw-r--r-- | src/gallium/auxiliary/translate/translate.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/translate/translate.h b/src/gallium/auxiliary/translate/translate.h index 850ef39ef21..1132114de9d 100644 --- a/src/gallium/auxiliary/translate/translate.h +++ b/src/gallium/auxiliary/translate/translate.h @@ -74,24 +74,28 @@ struct translate; typedef void (PIPE_CDECL *run_elts_func)(struct translate *, const unsigned *elts, unsigned count, + unsigned start_instance, unsigned instance_id, void *output_buffer); typedef void (PIPE_CDECL *run_elts16_func)(struct translate *, const uint16_t *elts, unsigned count, + unsigned start_instance, unsigned instance_id, void *output_buffer); typedef void (PIPE_CDECL *run_elts8_func)(struct translate *, const uint8_t *elts, unsigned count, + unsigned start_instance, unsigned instance_id, void *output_buffer); typedef void (PIPE_CDECL *run_func)(struct translate *, unsigned start, unsigned count, + unsigned start_instance, unsigned instance_id, void *output_buffer); |