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authorDavid Robillard <d@drobilla.net>2006-07-26 03:25:08 +0000
committerDavid Robillard <d@drobilla.net>2006-07-26 03:25:08 +0000
commit2cd84e4209633e59439c445f821bed8410347bab (patch)
treeba34505505795cff5cf35c2958ed21933b822e12 /examples/plugins/Amp-slv2.lv2
parentdeca2cc89850dffc051d0a0aafc9d681af838934 (diff)
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- Removed all the unsigned char garbage from the API
- Updated types in lv2.h to be non-machine-dependant (removed unsigned long in favour of uint32_t) - Updated schema - Updated example plugin to work with the above (partially) git-svn-id: http://svn.drobilla.net/lad/libslv2@101 a436a847-0d15-0410-975c-d299462d15a1
Diffstat (limited to 'examples/plugins/Amp-slv2.lv2')
-rw-r--r--examples/plugins/Amp-slv2.lv2/Makefile10
-rw-r--r--examples/plugins/Amp-slv2.lv2/amp.c108
-rw-r--r--examples/plugins/Amp-slv2.lv2/amp.ttl57
-rw-r--r--examples/plugins/Amp-slv2.lv2/manifest.ttl11
4 files changed, 186 insertions, 0 deletions
diff --git a/examples/plugins/Amp-slv2.lv2/Makefile b/examples/plugins/Amp-slv2.lv2/Makefile
new file mode 100644
index 0000000..55180c2
--- /dev/null
+++ b/examples/plugins/Amp-slv2.lv2/Makefile
@@ -0,0 +1,10 @@
+CFLAGS = -Wall -I../../../include -fPIC
+
+all: amp.so
+
+amp.so: amp.o
+ $(LD) amp.o -o amp.so -shared
+ rm amp.o
+
+clean:
+ rm *.o amp.so
diff --git a/examples/plugins/Amp-slv2.lv2/amp.c b/examples/plugins/Amp-slv2.lv2/amp.c
new file mode 100644
index 0000000..e6b891e
--- /dev/null
+++ b/examples/plugins/Amp-slv2.lv2/amp.c
@@ -0,0 +1,108 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include <math.h>
+
+#include "lv2.h"
+
+#ifdef WIN32
+#define SYMBOL_EXPORT __declspec(dllexport)
+#else
+#define SYMBOL_EXPORT
+#endif
+
+#define AMP_URI "http://codeson.net/plugins/amp"
+#define AMP_GAIN 0
+#define AMP_INPUT 1
+#define AMP_OUTPUT 2
+
+static LV2_Descriptor *ampDescriptor = NULL;
+
+typedef struct {
+ float *gain;
+ float *input;
+ float *output;
+} Amp;
+
+
+static void
+cleanupAmp(LV2_Handle instance) {
+ free(instance);
+}
+
+
+static void
+connectPortAmp(LV2_Handle instance, unsigned long port,
+ void *data) {
+ Amp *plugin = (Amp *)instance;
+
+ switch (port) {
+ case AMP_GAIN:
+ plugin->gain = data;
+ break;
+ case AMP_INPUT:
+ plugin->input = data;
+ break;
+ case AMP_OUTPUT:
+ plugin->output = data;
+ break;
+ }
+}
+
+
+static LV2_Handle
+instantiateAmp(const LV2_Descriptor *descriptor,
+ unsigned long s_rate, const char *path , const LV2_Host_Feature **features) {
+ Amp *plugin_data = (Amp *)malloc(sizeof(Amp));
+
+ return (LV2_Handle)plugin_data;
+}
+
+
+#define DB_CO(g) ((g) > -90.0f ? powf(10.0f, (g) * 0.05f) : 0.0f)
+
+static void
+runAmp(LV2_Handle instance, unsigned long sample_count) {
+ Amp *plugin_data = (Amp *)instance;
+
+ const float gain = *(plugin_data->gain);
+ const float * const input = plugin_data->input;
+ float * const output = plugin_data->output;
+
+ unsigned long pos;
+ float coef = DB_CO(gain);
+
+ for (pos = 0; pos < sample_count; pos++) {
+ output[pos] = input[pos] * coef;
+ }
+}
+
+
+static void
+init() {
+ ampDescriptor =
+ (LV2_Descriptor *)malloc(sizeof(LV2_Descriptor));
+
+ ampDescriptor->URI = AMP_URI;
+ ampDescriptor->activate = NULL;
+ ampDescriptor->cleanup = cleanupAmp;
+ ampDescriptor->connect_port = connectPortAmp;
+ ampDescriptor->deactivate = NULL;
+ ampDescriptor->instantiate = instantiateAmp;
+ ampDescriptor->run = runAmp;
+}
+
+
+SYMBOL_EXPORT
+const LV2_Descriptor*
+lv2_descriptor(unsigned long index) {
+ if (!ampDescriptor) init();
+
+ switch (index) {
+ case 0:
+ return ampDescriptor;
+ default:
+ return NULL;
+ }
+}
+
diff --git a/examples/plugins/Amp-slv2.lv2/amp.ttl b/examples/plugins/Amp-slv2.lv2/amp.ttl
new file mode 100644
index 0000000..abc5b33
--- /dev/null
+++ b/examples/plugins/Amp-slv2.lv2/amp.ttl
@@ -0,0 +1,57 @@
+@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix lv2: <http://lv2plug.in/ontology#> .
+@prefix foaf: <http://xmlns.com/foaf/0.1/> .
+@prefix doap: <http://usefulinc.com/ns/doap#> .
+
+<http://codeson.net/plugins/amp> a lv2:Plugin ;
+ a lv2:AmplifierPlugin ;
+ doap:maintainer [
+ foaf:name "Dave Robillard";
+ foaf:homepage <http://codeson.net/> ;
+ foaf:mbox <mailto:drobilla@connect.carleton.ca>
+ ] ;
+ doap:name "Simple Amplifier" ;
+ doap:name "Einfacher Verst¿¿rker"@de ;
+ doap:licence <http://usefulinc.com/doap/licenses/gpl> ;
+
+ lv2:property lv2:hardRTCapable ;
+
+ lv2:port [
+ a lv2:ControlRateInputPort ;
+ lv2:datatype lv2:float ;
+ lv2:index 0 ;
+ lv2:symbol "gain" ;
+ lv2:name "Gain" ;
+ lv2:name "Gewinn"@de ;
+ lv2:default [ rdf:value 0.0 ] ;
+ lv2:minimum [ rdf:value -90.0 ] ;
+ lv2:maximum [ rdf:value 24.0 ] ;
+ lv2:scalePoint [
+ rdfs:label "+5" ;
+ rdf:value 5.0
+ ] , [
+ rdfs:label "Unity" ;
+ rdf:value 1.0
+ ] , [
+ rdfs:label "-5" ;
+ rdf:value -5.0
+ ] , [
+ rdfs:label "-10" ;
+ rdf:value -10.0
+ ]
+ ] , [
+ a lv2:AudioRateInputPort ;
+ lv2:datatype lv2:float ;
+ lv2:index 1 ;
+ lv2:symbol "in" ;
+ lv2:name "Input"
+ ] , [
+ a lv2:AudioRateOutputPort ;
+ lv2:datatype lv2:float ;
+ lv2:index 2 ;
+ lv2:symbol "out" ;
+ lv2:name "Output"
+ ]
+.
+
diff --git a/examples/plugins/Amp-slv2.lv2/manifest.ttl b/examples/plugins/Amp-slv2.lv2/manifest.ttl
new file mode 100644
index 0000000..94456e6
--- /dev/null
+++ b/examples/plugins/Amp-slv2.lv2/manifest.ttl
@@ -0,0 +1,11 @@
+# LV2 Plugin Manifest
+# Lists where plugins' data files and shared objects reside.
+
+@prefix lv2: <http://lv2plug.in/ontology#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<http://codeson.net/plugins/amp>
+ lv2:binary <amp.so> ;
+ rdfs:seeAlso <amp.ttl> .
+
+