[netjack] Add -H option to turn off ntoh of payload data. reduces CPU load.

git-svn-id: svn+ssh://jackaudio.org/trunk/jack@3198 0c269be4-1314-0410-8aa9-9f06e86f4224

4 files changed, 58 insertions, 26 deletions

diff --git a/drivers/netjack/net_driver.c b/drivers/netjack/net_driver.c
index fc8742a..6ca859d 100644
--- a/drivers/netjack/net_driver.c
+++ b/drivers/netjack/net_driver.c
@@ -393,7 +393,7 @@ net_driver_read (net_driver_t* driver, jack_nframes_t nframes)
     unsigned int *packet_buf, *packet_bufX;
 
     if( ! driver->packet_data_valid ) {
-	render_payload_to_jack_ports (driver->bitdepth, NULL, driver->net_period_down, driver->capture_ports, driver->capture_srcs, nframes);
+	render_payload_to_jack_ports (driver->bitdepth, NULL, driver->net_period_down, driver->capture_ports, driver->capture_srcs, nframes, driver->dont_htonl_floats );
 	return 0;
     }
     packet_buf = driver->rx_buf;
@@ -461,7 +461,7 @@ net_driver_read (net_driver_t* driver, jack_nframes_t nframes)
         }
     }
 
-    render_payload_to_jack_ports (driver->bitdepth, packet_bufX, driver->net_period_down, driver->capture_ports, driver->capture_srcs, nframes);
+    render_payload_to_jack_ports (driver->bitdepth, packet_bufX, driver->net_period_down, driver->capture_ports, driver->capture_srcs, nframes, driver->dont_htonl_floats );
 
     return 0;
 }
@@ -490,7 +490,7 @@ net_driver_write (net_driver_t* driver, jack_nframes_t nframes)
     pkthdr->framecnt = driver->expected_framecnt;
 
 
-    render_jack_ports_to_payload(driver->bitdepth, driver->playback_ports, driver->playback_srcs, nframes, packet_bufX, driver->net_period_up);
+    render_jack_ports_to_payload(driver->bitdepth, driver->playback_ports, driver->playback_srcs, nframes, packet_bufX, driver->net_period_up, driver->dont_htonl_floats );
 
     packet_header_hton(pkthdr);
     if (driver->srcaddress_valid)
@@ -674,7 +674,8 @@ net_driver_new (jack_client_t * client,
                 unsigned int bitdepth,
 		unsigned int use_autoconfig,
 		unsigned int latency,
-		unsigned int redundancy)
+		unsigned int redundancy,
+		int dont_htonl_floats)
 {
     net_driver_t * driver;
     int first_pack_len;
@@ -702,6 +703,7 @@ net_driver_new (jack_client_t * client,
 
     driver->sample_rate = sample_rate;
     driver->period_size = period_size;
+    driver->dont_htonl_floats = dont_htonl_floats;
 
     driver->listen_port   = listen_port;
     driver->last_wait_ust = 0;
@@ -876,7 +878,7 @@ driver_get_descriptor ()
 
     desc = calloc (1, sizeof (jack_driver_desc_t));
     strcpy (desc->name, "net");
-    desc->nparams = 15;
+    desc->nparams = 16;
 
     params = calloc (desc->nparams, sizeof (jack_driver_param_desc_t));
 
@@ -1009,6 +1011,15 @@ driver_get_descriptor ()
             "Send packets N times");
     strcpy (params[i].long_desc, params[i].short_desc);
 
+    i++;
+    strcpy (params[i].name, "no-htonl");
+    params[i].character  = 'H';
+    params[i].type       = JackDriverParamUInt;
+    params[i].value.ui   = 0U;
+    strcpy (params[i].short_desc,
+            "Dont convert samples to network byte order.");
+    strcpy (params[i].long_desc, params[i].short_desc);
+
     desc->params = params;
 
     return desc;
@@ -1033,6 +1044,7 @@ driver_initialize (jack_client_t *client, const JSList * params)
     unsigned int use_autoconfig = 1;
     unsigned int latency = 5;
     unsigned int redundancy = 1;
+    int dont_htonl_floats = 0;
     const JSList * node;
     const jack_driver_param_t * param;
 
@@ -1116,6 +1128,10 @@ driver_initialize (jack_client_t *client, const JSList * params)
             case 'R':
                 redundancy = param->value.ui;
                 break;
+
+            case 'H':
+                dont_htonl_floats = param->value.ui;
+                break;
         }
     }
 
@@ -1124,7 +1140,8 @@ driver_initialize (jack_client_t *client, const JSList * params)
                            sample_rate, period_size,
                            listen_port, handle_transport_sync,
                            resample_factor, resample_factor_up, bitdepth,
-			   use_autoconfig, latency, redundancy);
+			   use_autoconfig, latency, redundancy,
+			   dont_htonl_floats);
 }
 
 void
diff --git a/drivers/netjack/net_driver.h b/drivers/netjack/net_driver.h
index 5521e6f..63321d0 100644
--- a/drivers/netjack/net_driver.h
+++ b/drivers/netjack/net_driver.h
@@ -41,6 +41,7 @@ struct _net_driver
     jack_nframes_t  sample_rate;
     jack_nframes_t  bitdepth;
     jack_nframes_t  period_size;
+    int		    dont_htonl_floats;
 
     jack_nframes_t  codec_latency;
 
diff --git a/drivers/netjack/netjack_packet.c b/drivers/netjack/netjack_packet.c
index 4be553f..c551015 100644
--- a/drivers/netjack/netjack_packet.c
+++ b/drivers/netjack/netjack_packet.c
@@ -843,7 +843,7 @@ encode_midi_buffer (uint32_t *buffer_uint32, unsigned int buffer_size_uint32, ja
 
 // render functions for float
 void
-render_payload_to_jack_ports_float ( void *packet_payload, jack_nframes_t net_period_down, JSList *capture_ports, JSList *capture_srcs, jack_nframes_t nframes)
+render_payload_to_jack_ports_float ( void *packet_payload, jack_nframes_t net_period_down, JSList *capture_ports, JSList *capture_srcs, jack_nframes_t nframes, int dont_htonl_floats)
 {
     channel_t chn = 0;
     JSList *node = capture_ports;
@@ -895,12 +895,19 @@ render_payload_to_jack_ports_float ( void *packet_payload, jack_nframes_t net_pe
             else
 #endif
             {
-                for (i = 0; i < net_period_down; i++)
-                {
-                    val.i = packet_bufX[i];
-                    val.i = ntohl (val.i);
-                    buf[i] = val.f;
-                }
+		if( dont_htonl_floats ) 
+		{
+		    memcpy( buf, packet_bufX, net_period_down*sizeof(jack_default_audio_sample_t));
+		}
+		else
+		{
+		    for (i = 0; i < net_period_down; i++)
+		    {
+			val.i = packet_bufX[i];
+			val.i = ntohl (val.i);
+			buf[i] = val.f;
+		    }
+		}
             }
         }
         else if (strncmp (porttype, JACK_DEFAULT_MIDI_TYPE, jack_port_type_size()) == 0)
@@ -918,7 +925,7 @@ render_payload_to_jack_ports_float ( void *packet_payload, jack_nframes_t net_pe
 }
 
 void
-render_jack_ports_to_payload_float (JSList *playback_ports, JSList *playback_srcs, jack_nframes_t nframes, void *packet_payload, jack_nframes_t net_period_up)
+render_jack_ports_to_payload_float (JSList *playback_ports, JSList *playback_srcs, jack_nframes_t nframes, void *packet_payload, jack_nframes_t net_period_up, int dont_htonl_floats )
 {
     channel_t chn = 0;
     JSList *node = playback_ports;
@@ -966,12 +973,19 @@ render_jack_ports_to_payload_float (JSList *playback_ports, JSList *playback_src
             else
 #endif
             {
-                for (i = 0; i < net_period_up; i++)
-                {
-                    val.f = buf[i];
-                    val.i = htonl (val.i);
-                    packet_bufX[i] = val.i;
-                }
+		if( dont_htonl_floats )
+		{
+		    memcpy( packet_bufX, buf, net_period_up*sizeof(jack_default_audio_sample_t) );
+		}
+		else
+		{
+		    for (i = 0; i < net_period_up; i++)
+		    {
+			val.f = buf[i];
+			val.i = htonl (val.i);
+			packet_bufX[i] = val.i;
+		    }
+		}
             }
         }
         else if (strncmp(porttype, JACK_DEFAULT_MIDI_TYPE, jack_port_type_size()) == 0)
@@ -1352,7 +1366,7 @@ render_jack_ports_to_payload_celt (JSList *playback_ports, JSList *playback_srcs
 #endif
 /* Wrapper functions with bitdepth argument... */
 void
-render_payload_to_jack_ports (int bitdepth, void *packet_payload, jack_nframes_t net_period_down, JSList *capture_ports, JSList *capture_srcs, jack_nframes_t nframes)
+render_payload_to_jack_ports (int bitdepth, void *packet_payload, jack_nframes_t net_period_down, JSList *capture_ports, JSList *capture_srcs, jack_nframes_t nframes, int dont_htonl_floats)
 {
     if (bitdepth == 8)
         render_payload_to_jack_ports_8bit (packet_payload, net_period_down, capture_ports, capture_srcs, nframes);
@@ -1363,11 +1377,11 @@ render_payload_to_jack_ports (int bitdepth, void *packet_payload, jack_nframes_t
         render_payload_to_jack_ports_celt (packet_payload, net_period_down, capture_ports, capture_srcs, nframes);
 #endif
     else
-        render_payload_to_jack_ports_float (packet_payload, net_period_down, capture_ports, capture_srcs, nframes);
+        render_payload_to_jack_ports_float (packet_payload, net_period_down, capture_ports, capture_srcs, nframes, dont_htonl_floats);
 }
 
 void
-render_jack_ports_to_payload (int bitdepth, JSList *playback_ports, JSList *playback_srcs, jack_nframes_t nframes, void *packet_payload, jack_nframes_t net_period_up)
+render_jack_ports_to_payload (int bitdepth, JSList *playback_ports, JSList *playback_srcs, jack_nframes_t nframes, void *packet_payload, jack_nframes_t net_period_up, int dont_htonl_floats)
 {
     if (bitdepth == 8)
         render_jack_ports_to_payload_8bit (playback_ports, playback_srcs, nframes, packet_payload, net_period_up);
@@ -1378,5 +1392,5 @@ render_jack_ports_to_payload (int bitdepth, JSList *playback_ports, JSList *play
         render_jack_ports_to_payload_celt (playback_ports, playback_srcs, nframes, packet_payload, net_period_up);
 #endif
     else
-        render_jack_ports_to_payload_float (playback_ports, playback_srcs, nframes, packet_payload, net_period_up);
+        render_jack_ports_to_payload_float (playback_ports, playback_srcs, nframes, packet_payload, net_period_up, dont_htonl_floats);
 }
diff --git a/drivers/netjack/netjack_packet.h b/drivers/netjack/netjack_packet.h
index f70b7e9..f91aaf5 100644
--- a/drivers/netjack/netjack_packet.h
+++ b/drivers/netjack/netjack_packet.h
@@ -131,9 +131,9 @@ void packet_header_hton(jacknet_packet_header *pkthdr);
 
 void packet_header_ntoh(jacknet_packet_header *pkthdr);
 
-void render_payload_to_jack_ports(int bitdepth, void *packet_payload, jack_nframes_t net_period_down, JSList *capture_ports, JSList *capture_srcs, jack_nframes_t nframes);
+void render_payload_to_jack_ports(int bitdepth, void *packet_payload, jack_nframes_t net_period_down, JSList *capture_ports, JSList *capture_srcs, jack_nframes_t nframes, int dont_htonl_floats );
 
-void render_jack_ports_to_payload(int bitdepth, JSList *playback_ports, JSList *playback_srcs, jack_nframes_t nframes, void *packet_payload, jack_nframes_t net_period_up);
+void render_jack_ports_to_payload(int bitdepth, JSList *playback_ports, JSList *playback_srcs, jack_nframes_t nframes, void *packet_payload, jack_nframes_t net_period_up, int dont_htonl_floats );
 
 
 // XXX: This is sort of deprecated: