diff options
| author | Luca Barbieri <luca@luca-barbieri.com> | 2010-01-18 01:02:55 +0100 |
|---|---|---|
| committer | Luca Barbieri <luca@luca-barbieri.com> | 2010-04-12 23:36:21 +0200 |
| commit | 9ad385fef95e8f8b9ecf89c85fb443e30196e9c2 (patch) | |
| tree | 0a40214011a89573d2c48d92fb6939e4cdb25ace /src/gallium/drivers/nvfx/nvfx_screen.c | |
| parent | 202760b4372fbe8488b0c6b93578697ae81fd430 (diff) | |
nvfx: support an unlimited number of occlusion queries
Currently on nv30/nv40 an assert will be triggered once 32 queries are
outstanding.
This violates the OpenGL/Gallium interface, which requires support for
an unlimited number of fences.
This patch fixes the problem by putting queries in a linked list and
waiting on the oldest one if allocation fails.
nVidia seems to use a similar strategy, but with 1024 instead of 32 fences.
The next patch will improve this.
Diffstat (limited to 'src/gallium/drivers/nvfx/nvfx_screen.c')
| -rw-r--r-- | src/gallium/drivers/nvfx/nvfx_screen.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvfx/nvfx_screen.c b/src/gallium/drivers/nvfx/nvfx_screen.c index 9236c8d256..651e6ee64b 100644 --- a/src/gallium/drivers/nvfx/nvfx_screen.c +++ b/src/gallium/drivers/nvfx/nvfx_screen.c @@ -411,6 +411,8 @@ nvfx_screen_create(struct pipe_winsys *ws, struct nouveau_device *dev) return NULL; } + LIST_INITHEAD(&screen->query_list); + /* Vtxprog resources */ if (nouveau_resource_init(&screen->vp_exec_heap, 0, screen->is_nv4x ? 512 : 256) || nouveau_resource_init(&screen->vp_data_heap, 0, 256)) { |