diff options
| author | Marcin Slusarz <[email protected]> | 2011-05-09 20:12:38 +0200 |
|---|---|---|
| committer | Christoph Bumiller <[email protected]> | 2011-05-09 20:19:19 +0200 |
| commit | 4e1b1cbd0dd5c436d3c9360870df14e2b5e548f3 (patch) | |
| tree | 50ccbbb1a2b258599ae75a6d5b71b081da5a3ceb /src/gallium/drivers/nvc0/nvc0_transfer.c | |
| parent | 86852236a396bd9932a6ab6e73def0c8ef2f23a5 (diff) | |
nv50/nvc0: make transfers aware of PIPE_TRANSFER_MAP_DIRECTLY
If state tracker asked us to map resource directly and we can't
do it (because of tiling), return NULL instead of doing full transfer
- state tracker should handle it and fallback to some other method
or repeat transfer without PIPE_TRANSFER_MAP_DIRECTLY.
It greatly improves performance of xorg state tracker on nv50+,
because its fallback (DFS/UTS) is much faster than full transfer.
Diffstat (limited to 'src/gallium/drivers/nvc0/nvc0_transfer.c')
| -rw-r--r-- | src/gallium/drivers/nvc0/nvc0_transfer.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvc0/nvc0_transfer.c b/src/gallium/drivers/nvc0/nvc0_transfer.c index 7bbfe057e58..0509113e005 100644 --- a/src/gallium/drivers/nvc0/nvc0_transfer.c +++ b/src/gallium/drivers/nvc0/nvc0_transfer.c @@ -246,6 +246,9 @@ nvc0_miptree_transfer_new(struct pipe_context *pctx, uint32_t w, h, d, z, layer; int ret; + if (usage & PIPE_TRANSFER_MAP_DIRECTLY) + return NULL; + tx = CALLOC_STRUCT(nvc0_transfer); if (!tx) return NULL; |