diff options
Diffstat (limited to 'src/gallium/drivers/nvc0/nvc0_vbo.c')
| -rw-r--r-- | src/gallium/drivers/nvc0/nvc0_vbo.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvc0/nvc0_vbo.c b/src/gallium/drivers/nvc0/nvc0_vbo.c index 50e99ac5df3..7cf69910e6a 100644 --- a/src/gallium/drivers/nvc0/nvc0_vbo.c +++ b/src/gallium/drivers/nvc0/nvc0_vbo.c @@ -569,6 +569,38 @@ nvc0_draw_elements(struct nvc0_context *nvc0, boolean shorten, } } +static void +nvc0_draw_stream_output(struct nvc0_context *nvc0, + const struct pipe_draw_info *info) +{ + struct nouveau_channel *chan = nvc0->screen->base.channel; + struct nvc0_so_target *so = nvc0_so_target(info->count_from_stream_output); + struct nv04_resource *res = nv04_resource(so->pipe.buffer); + unsigned mode = nvc0_prim_gl(info->mode); + unsigned num_instances = info->instance_count; + + if (res->status & NOUVEAU_BUFFER_STATUS_GPU_WRITING) { + res->status &= ~NOUVEAU_BUFFER_STATUS_GPU_WRITING; + IMMED_RING(chan, RING_3D(SERIALIZE), 0); + nvc0_query_fifo_wait(chan, so->pq); + IMMED_RING(chan, RING_3D(VERTEX_ARRAY_FLUSH), 0); + } + + while (num_instances--) { + BEGIN_RING(chan, RING_3D(VERTEX_BEGIN_GL), 1); + OUT_RING (chan, mode); + BEGIN_RING(chan, RING_3D(DRAW_TFB_BASE), 1); + OUT_RING (chan, 0); + BEGIN_RING(chan, RING_3D(DRAW_TFB_STRIDE), 1); + OUT_RING (chan, so->stride); + BEGIN_RING(chan, RING_3D(DRAW_TFB_BYTES), 1); + nvc0_query_pushbuf_submit(chan, so->pq, 0x4); + IMMED_RING(chan, RING_3D(VERTEX_END_GL), 0); + + mode |= NVC0_3D_VERTEX_BEGIN_GL_INSTANCE_NEXT; + } +} + void nvc0_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info) { @@ -615,6 +647,9 @@ nvc0_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info) nvc0->base.vbo_dirty = FALSE; } + if (unlikely(info->count_from_stream_output)) { + nvc0_draw_stream_output(nvc0, info); + } else if (!info->indexed) { nvc0_draw_arrays(nvc0, info->mode, info->start, info->count, |