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WIP add subgraph

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This commit is contained in:
Wim Taymans 2018-03-16 12:46:18 +01:00
parent 933635f63f
commit 3a9df8096b
4 changed files with 46 additions and 55 deletions
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25
spa/include/spa/graph/graph.h
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@ -47,11 +47,33 @@ struct spa_graph_callbacks {
};
struct spa_graph {
struct spa_list nodes;
struct spa_list link; /* link for subgraph */
struct spa_graph *parent; /* parent graph or NULL when driver */
struct spa_list nodes; /* list of nodes of this graph */
struct spa_list subgraphs; /* list of subgraphs */
const struct spa_graph_callbacks *callbacks;
void *callbacks_data;
};
static inline struct spa_graph * spa_graph_find_root(struct spa_graph *graph)
{
while (graph->parent)
graph = graph->parent;
return graph;
}
static inline void spa_graph_add_subgraph(struct spa_graph *graph, struct spa_graph *subgraph)
{
subgraph->parent = graph;
spa_list_append(&graph->subgraphs, &subgraph->link);
}
static inline void spa_graph_remove_subgraph(struct spa_graph *subgraph)
{
subgraph->parent = NULL;
spa_list_remove(&subgraph->link);
}
#define spa_graph_need_input(g,n) ((g)->callbacks->need_input((g)->callbacks_data, (n)))
#define spa_graph_have_output(g,n) ((g)->callbacks->have_output((g)->callbacks_data, (n)))
#define spa_graph_run(g) ((g)->callbacks->run((g)->callbacks_data))
@ -101,6 +123,7 @@ struct spa_graph_port {
static inline void spa_graph_init(struct spa_graph *graph)
{
spa_list_init(&graph->nodes);
spa_list_init(&graph->subgraphs);
}
static inline void