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alsa-seq: keep track of last port

Browse source 
Keep track of the last port and only iterate until that port.
This commit is contained in:
Wim Taymans 2020-03-31 17:52:22 +02:00
parent b3bddb853f
commit 74665de68e
3 changed files with 19 additions and 9 deletions
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17
spa/plugins/alsa/alsa-seq-source.c
View file

@ -350,7 +350,7 @@ static struct seq_port *find_port(struct seq_state *state,
struct seq_stream *stream, const snd_seq_addr_t *addr)
{
uint32_t i;
for (i = 0; i < MAX_PORTS; i++) {
for (i = 0; i < stream->last_port; i++) {
struct seq_port *port = &stream->ports[i];
if (port->valid &&
port->addr.client == addr->client &&
@ -369,14 +369,23 @@ static struct seq_port *alloc_port(struct seq_state *state, struct seq_stream *s
port->id = i;
port->direction = stream->direction;
port->valid = true;
if (stream->last_port < i + 1)
stream->last_port = i + 1;
return port;
}
}
return NULL;
}
static void free_port(struct seq_state *state, struct seq_port *port)
static void free_port(struct seq_state *state, struct seq_stream *stream, struct seq_port *port)
{
if (port->id + 1 == stream->last_port) {
int i;
for (i = stream->last_port - 1; i >= 0; i--)
if (!stream->ports[i].valid)
break;
stream->last_port = i + 1;
}
spa_node_emit_port_info(&state->hooks,
port->direction, port->id, NULL);
spa_zero(*port);
@ -417,7 +426,7 @@ static void update_stream_port(struct seq_state *state, struct seq_stream *strea
if (info == NULL) {
spa_log_debug(state->log, "free port %d.%d", addr->client, addr->port);
if (port)
free_port(state, port);
free_port(state, stream, port);
} else {
if (port == NULL && (caps & stream->caps) == stream->caps) {
spa_log_debug(state->log, "new port %d.%d", addr->client, addr->port);
@ -428,7 +437,7 @@ static void update_stream_port(struct seq_state *state, struct seq_stream *strea
} else if (port != NULL) {
if ((caps & stream->caps) != stream->caps) {
spa_log_debug(state->log, "free port %d.%d", addr->client, addr->port);
free_port(state, port);
free_port(state, stream, port);
}
else {
spa_log_debug(state->log, "update port %d.%d", addr->client, addr->port);

10
spa/plugins/alsa/alsa-seq.c
View file

@ -366,7 +366,7 @@ static struct seq_port *find_port(struct seq_state *state,
struct seq_stream *stream, const snd_seq_addr_t *addr)
{
uint32_t i;
for (i = 0; i < MAX_PORTS; i++) {
for (i = 0; i < stream->last_port; i++) {
struct seq_port *port = &stream->ports[i];
if (port->valid &&
port->addr.client == addr->client &&
@ -460,7 +460,7 @@ static int process_recycle(struct seq_state *state)
struct seq_stream *stream = &state->streams[SPA_DIRECTION_OUTPUT];
uint32_t i;
for (i = 0; i < MAX_PORTS; i++) {
for (i = 0; i < stream->last_port; i++) {
struct seq_port *port = &stream->ports[i];
struct spa_io_buffers *io = port->io;
@ -547,7 +547,7 @@ static int process_read(struct seq_state *state)
/* prepare a buffer on each port, some ports might have their
* buffer filled above */
res = 0;
for (i = 0; i < MAX_PORTS; i++) {
for (i = 0; i < stream->last_port; i++) {
struct seq_port *port = &stream->ports[i];
struct spa_io_buffers *io = port->io;
@ -599,7 +599,7 @@ static int process_write(struct seq_state *state)
uint32_t i;
int res = 0;
for (i = 0; i < MAX_PORTS; i++) {
for (i = 0; i < stream->last_port; i++) {
struct seq_port *port = &stream->ports[i];
struct spa_io_buffers *io = port->io;
struct buffer *buffer;
@ -819,7 +819,7 @@ static void reset_buffers(struct seq_state *this, struct seq_port *port)
static void reset_stream(struct seq_state *this, struct seq_stream *stream, bool active)
{
uint32_t i;
for (i = 0; i < MAX_PORTS; i++) {
for (i = 0; i < stream->last_port; i++) {
struct seq_port *port = &stream->ports[i];
if (port->valid) {
reset_buffers(this, port);

1
spa/plugins/alsa/alsa-seq.h
View file

@ -94,6 +94,7 @@ struct seq_stream {
unsigned int caps;
snd_midi_event_t *codec;
struct seq_port ports[MAX_PORTS];
uint32_t last_port;
};
struct seq_conn {