-static struct st_vp_varient *
-find_translated_vp(struct st_context *st,
- struct st_vertex_program *stvp )
-{
- struct st_vp_varient *vpv;
- struct st_vp_varient_key key;
-
- /* Nothing in our key yet. This will change:
- */
- memset(&key, 0, sizeof key);
- key.dummy = 0;
-
- /* Do we need to throw away old translations after a change in the
- * GL program string?
- */
- if (stvp->serialNo != stvp->lastSerialNo) {
- /* These may have changed if the program string changed.
- */
- st_prepare_vertex_program( st, stvp );
-
- /* We are now up-to-date:
- */
- stvp->lastSerialNo = stvp->serialNo;
- }
-
- /* See if we've got a translated vertex program whose outputs match
- * the fragment program's inputs.
- */
- for (vpv = stvp->varients; vpv; vpv = vpv->next) {
- if (memcmp(&vpv->key, &key, sizeof key) == 0) {
- break;
- }
- }
-
- /* No? Perform new translation here. */
- if (!vpv) {
- vpv = st_translate_vertex_program(st, stvp, &key);
- if (!vpv)
- return NULL;
-
- vpv->next = stvp->varients;
- stvp->varients = vpv;
- }
-
- return vpv;
-}
-
-
-
-