Bump shm test

colorchord2/DisplaySHM.c

@@ -14,13 +14,16 @@
 #include <fcntl.h>           /* For O_* constants */
 #include <unistd.h>
 
+extern struct NoteFinder * nf;
+
+
 struct SHMDriver
 {
 	int lights_file;
-	//int dft_file; //Not available.
-	//uint8_t * dft_ptr;
+	int dft_file; //Not available.
+	uint8_t * dft_ptr;
 	uint8_t * lights_ptr;
-	//int total_dft;
+	int total_dft;
 	int total_leds;
 };
 
@@ -29,7 +32,6 @@ static void SHMUpdate(void * id, struct NoteFinder*nf)
 {
 	struct SHMDriver * d = (struct SHMDriver*)id;
 
-
 	if( !d->lights_file )
 	{
 		const char * shm_lights = GetParameterS( "shm_lights", 0 );
@@ -46,6 +48,33 @@ static void SHMUpdate(void * id, struct NoteFinder*nf)
 	}
 
 
+	if( !d->dft_file )
+	{
+		const char * shmname = GetParameterS( "shm_dft", 0 );
+		//const char * shm_dft    = GetParameterS( "shm_dft", 0 ); // Not available.
+
+		if( shmname )
+		{
+			d->dft_file = shm_open(shmname, O_CREAT | O_RDWR, 0644);
+			ftruncate( d->dft_file, 16384 );
+			d->dft_ptr = mmap(0,16384, PROT_READ | PROT_WRITE, MAP_SHARED, d->dft_file, 0);
+		}
+
+		printf( "Got SHM: %s->%d [%p]\n", shmname, d->dft_file, d->dft_ptr );
+	}
+
+
+	if( d->dft_ptr )
+	{
+
+		d->total_dft = nf->octaves * nf->freqbins;
+		memcpy( d->dft_ptr+0, &nf->octaves, 4 );
+		memcpy( d->dft_ptr+4, &nf->freqbins, 4 );
+		memcpy( d->dft_ptr+8, nf->folded_bins, nf->freqbins * sizeof(float) );
+		memcpy( d->dft_ptr+8+nf->freqbins * sizeof(float),
+			 nf->outbins, d->total_dft * sizeof(float) );
+	}
+
 	if( d->lights_ptr )
 	{
 		memcpy( d->lights_ptr, &d->total_leds, 4 );

colorchord2/shmtest.conf

@@ -0,0 +1,49 @@
+cpu_autolimit = 1
+
+#General GUI properties.
+title = PA Test
+set_screenx = 720
+set_screeny = 480
+
+sample_channel = -1
+sourcename = alsa_output.pci-0000_01_00.1.hdmi-stereo-extra2.monitor
+#alsa_output.pci-0000_00_1f.3.analog-stereo.monitor
+#default
+# alsa_output.pci-0000_00_1b.0.analog-stereo.monitor
+#alsa_output.pci-0000_00_1f.3.analog-stereo.monitor << New laptop
+#use pactl list | grep pci- | grep monitor
+
+
+#How many bins a note can jump from frame to frame to be considered a slide.
+#this is used to prevent notes from popping in and out a lot.
+note_combine_distance = 0.5000
+note_jumpability = 1.8000
+note_minimum_new_distribution_value = 0.0200
+note_out_chop = 0.05000
+
+#compress_coefficient = 4.0
+#compress_exponent = .5
+
+
+#=======================================================================
+#Outputs
+
+
+#DisplayArray
+outdrivers = OutputCells, DisplaySHM
+
+shm_lights = /cclights
+shm_dft    = /ccdft
+
+lightx = 20
+lighty = 4
+fromsides = 1
+leds = 120
+qtyamp = 120
+
+satamp = 2.800
+amppow = 2.510
+distpow = 1.500
+
+
+