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spa: allocate ports dynamically

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So that we don't need to allocate large memory blocks that are mostly
unused.

See #1840
This commit is contained in:
Wim Taymans 2022-01-01 17:41:27 +01:00
parent 3f87741b27
commit 2ed62f53d9
5 changed files with 107 additions and 44 deletions
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27
spa/plugins/control/mixer.c
View file

@ -86,7 +86,7 @@ struct impl {
uint32_t port_count;
uint32_t last_port;
struct port in_ports[MAX_PORTS];
struct port *in_ports[MAX_PORTS];
struct port out_ports[1];
int n_formats;
@ -95,11 +95,12 @@ struct impl {
unsigned int started:1;
};
#define CHECK_FREE_IN_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) < MAX_PORTS && !this->in_ports[(p)].valid)
#define CHECK_IN_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) < MAX_PORTS && this->in_ports[(p)].valid)
#define PORT_VALID(p) ((p) != NULL && (p)->valid)
#define CHECK_FREE_IN_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) < MAX_PORTS && !PORT_VALID(this->in_ports[(p)]))
#define CHECK_IN_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) < MAX_PORTS && PORT_VALID(this->in_ports[(p)]))
#define CHECK_OUT_PORT(this,d,p) ((d) == SPA_DIRECTION_OUTPUT && (p) == 0)
#define CHECK_PORT(this,d,p) (CHECK_OUT_PORT(this,d,p) || CHECK_IN_PORT (this,d,p))
#define GET_IN_PORT(this,p) (&this->in_ports[p])
#define GET_IN_PORT(this,p) (this->in_ports[p])
#define GET_OUT_PORT(this,p) (&this->out_ports[p])
#define GET_PORT(this,d,p) (d == SPA_DIRECTION_INPUT ? GET_IN_PORT(this,p) : GET_OUT_PORT(this,p))
@ -180,7 +181,7 @@ static int impl_node_add_listener(void *object,
emit_node_info(this, true);
emit_port_info(this, GET_OUT_PORT(this, 0), true);
for (i = 0; i < this->last_port; i++) {
if (this->in_ports[i].valid)
if (PORT_VALID(this->in_ports[i]))
emit_port_info(this, GET_IN_PORT(this, i), true);
}
@ -207,6 +208,13 @@ static int impl_node_add_port(void *object, enum spa_direction direction, uint32
spa_return_val_if_fail(CHECK_FREE_IN_PORT(this, direction, port_id), -EINVAL);
port = GET_IN_PORT (this, port_id);
if (port == NULL) {
port = calloc(1, sizeof(struct port));
if (port == NULL)
return -errno;
this->in_ports[port_id] = port;
}
port->direction = direction;
port->id = port_id;
@ -720,6 +728,15 @@ static int impl_get_interface(struct spa_handle *handle, const char *type, void
static int impl_clear(struct spa_handle *handle)
{
struct impl *this;
uint32_t i;
spa_return_val_if_fail(handle != NULL, -EINVAL);
this = (struct impl *) handle;
for (i = 0; i < MAX_PORTS; i++)
free(this->in_ports[i]);
return 0;
}