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authorEric Anholt <eric@anholt.net>2017-10-02 12:17:30 -0700
committerEric Anholt <eric@anholt.net>2017-10-10 11:42:05 -0700
commitd8bc9c71dfcfa4e1e43e899f6b67da45f26efc79 (patch)
tree8bcee4166d8a59fad2c440241e3e4cceba4634de /src/gallium/drivers/vc5
parent28105560f778c4b7718349d3719cc96e15092f2b (diff)
broadcom/vc5: Mark our primitives as needing TF processing.
The TF enable state appears to stick around until the next TF enable packet is sent, so we only want to request TF when the shader is using it.
Diffstat (limited to 'src/gallium/drivers/vc5')
-rw-r--r--src/gallium/drivers/vc5/vc5_draw.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/src/gallium/drivers/vc5/vc5_draw.c b/src/gallium/drivers/vc5/vc5_draw.c
index 953477817d8..8c6a753b271 100644
--- a/src/gallium/drivers/vc5/vc5_draw.c
+++ b/src/gallium/drivers/vc5/vc5_draw.c
@@ -409,6 +409,13 @@ vc5_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
}
}
+ /* The HW only processes transform feedback on primitives with the
+ * flag set.
+ */
+ uint32_t prim_tf_enable = 0;
+ if (vc5->prog.bind_vs->num_tf_outputs)
+ prim_tf_enable = (V3D_PRIM_POINTS_TF - V3D_PRIM_POINTS);
+
/* Note that the primitive type fields match with OpenGL/gallium
* definitions, up to but not including QUADS.
*/
@@ -433,7 +440,7 @@ vc5_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
prim.maximum_index = (1u << 31) - 1; /* XXX */
prim.address_of_indices_list =
cl_address(rsc->bo, offset);
- prim.mode = info->mode;
+ prim.mode = info->mode | prim_tf_enable;
prim.enable_primitive_restarts = info->primitive_restart;
prim.number_of_instances = info->instance_count;
@@ -446,7 +453,7 @@ vc5_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
prim.maximum_index = (1u << 31) - 1; /* XXX */
prim.address_of_indices_list =
cl_address(rsc->bo, offset);
- prim.mode = info->mode;
+ prim.mode = info->mode | prim_tf_enable;
prim.enable_primitive_restarts = info->primitive_restart;
}
}
@@ -458,14 +465,14 @@ vc5_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
} else {
if (info->instance_count > 1) {
cl_emit(&job->bcl, VERTEX_ARRAY_INSTANCED_PRIMITIVES, prim) {
- prim.mode = info->mode;
+ prim.mode = info->mode | prim_tf_enable;
prim.index_of_first_vertex = info->start;
prim.number_of_instances = info->instance_count;
prim.instance_length = info->count;
}
} else {
cl_emit(&job->bcl, VERTEX_ARRAY_PRIMITIVES, prim) {
- prim.mode = info->mode;
+ prim.mode = info->mode | prim_tf_enable;
prim.length = info->count;
prim.index_of_first_vertex = info->start;
}