/* u_vbuf uses its own caching for vertex elements, because it needs to keep
* its own preprocessed state per vertex element CSO. */
static struct u_vbuf_elements *
u_vbuf_set_vertex_elements_internal(struct u_vbuf *mgr, unsigned count,
const struct pipe_vertex_element *states)
{
struct pipe_context *pipe = mgr->pipe;
unsigned key_size, hash_key;
struct cso_hash_iter iter;
struct u_vbuf_elements *ve;
struct cso_velems_state velems_state;
/* need to include the count into the stored state data too. */
key_size = sizeof(struct pipe_vertex_element) * count + sizeof(unsigned);
velems_state.count = count;
memcpy(velems_state.velems, states,
sizeof(struct pipe_vertex_element) * count);
hash_key = cso_construct_key((void*)&velems_state, key_size);
iter = cso_find_state_template(mgr->cso_cache, hash_key, CSO_VELEMENTS,
(void*)&velems_state, key_size);
if (cso_hash_iter_is_null(iter)) {
struct cso_velements *cso = MALLOC_STRUCT(cso_velements);
memcpy(&cso->state, &velems_state, key_size);
cso->data = u_vbuf_create_vertex_elements(mgr, count, states);
cso->delete_state = (cso_state_callback)u_vbuf_delete_vertex_elements;
cso->context = (void*)mgr;
iter = cso_insert_state(mgr->cso_cache, hash_key, CSO_VELEMENTS, cso);
ve = cso->data;
} else {
ve = ((struct cso_velements *)cso_hash_iter_data(iter))->data;
}
assert(ve);
if (ve != mgr->ve)
pipe->bind_vertex_elements_state(pipe, ve->driver_cso);
return ve;
}
void *r600_create_vertex_elements(struct pipe_context *ctx,
unsigned count,
const struct pipe_vertex_element *elements)
{
struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
struct r600_vertex_element *v = CALLOC_STRUCT(r600_vertex_element);
assert(count < 32);
if (!v)
return NULL;
v->count = count;
v->vmgr_elements =
u_vbuf_create_vertex_elements(rctx->vbuf_mgr, count,
elements, v->elements);
if (r600_vertex_elements_build_fetch_shader(rctx, v)) {
FREE(v);
return NULL;
}
return v;
}
