+/**
+ * Create a new fragment shader variant.
+ */
+static struct sp_fragment_shader_variant *
+create_fs_variant(struct softpipe_context *softpipe,
+ struct sp_fragment_shader *fs,
+ const struct sp_fragment_shader_variant_key *key)
+{
+ struct sp_fragment_shader_variant *var;
+ struct pipe_shader_state *curfs = &fs->shader;
+
+ /* codegen, create variant object */
+ var = softpipe_create_fs_variant_sse(softpipe, curfs);
+ if (!var) {
+ var = softpipe_create_fs_variant_exec(softpipe, curfs);
+ }
+
+ if (var) {
+ var->key = *key;
+ var->tokens = tgsi_dup_tokens(curfs->tokens);
+
+ tgsi_scan_shader(var->tokens, &var->info);
+
+ /* See comments elsewhere about draw fragment shaders */
+#if 0
+ /* draw's fs state */
+ var->draw_shader = draw_create_fragment_shader(softpipe->draw,
+ &fs->shader);
+ if (!var->draw_shader) {
+ var->delete(var);
+ FREE((void *) var->tokens);
+ return NULL;
+ }
+#endif
+
+ /* insert variant into linked list */
+ var->next = fs->variants;
+ fs->variants = var;
+ }
+
+ return var;
+}
+
+
+struct sp_fragment_shader_variant *
+softpipe_find_fs_variant(struct softpipe_context *sp,
+ struct sp_fragment_shader *fs,
+ const struct sp_fragment_shader_variant_key *key)
+{
+ struct sp_fragment_shader_variant *var;
+
+ for (var = fs->variants; var; var = var->next) {
+ if (memcmp(&var->key, key, sizeof(*key)) == 0) {
+ /* found it */
+ return var;
+ }
+ }
+
+ return create_fs_variant(sp, fs, key);
+}
+
+