diff options
Diffstat (limited to 'examples/plugins/Amp-onefile-slv2.lv2')
-rw-r--r-- | examples/plugins/Amp-onefile-slv2.lv2/Makefile | 10 | ||||
-rw-r--r-- | examples/plugins/Amp-onefile-slv2.lv2/amp.c | 108 | ||||
-rw-r--r-- | examples/plugins/Amp-onefile-slv2.lv2/manifest.ttl | 58 |
3 files changed, 176 insertions, 0 deletions
diff --git a/examples/plugins/Amp-onefile-slv2.lv2/Makefile b/examples/plugins/Amp-onefile-slv2.lv2/Makefile new file mode 100644 index 0000000..eb7dfe1 --- /dev/null +++ b/examples/plugins/Amp-onefile-slv2.lv2/Makefile @@ -0,0 +1,10 @@ +CFLAGS = -Wall -I../../../include -fPIC -g -O0 + +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-onefile-slv2.lv2/amp.c b/examples/plugins/Amp-onefile-slv2.lv2/amp.c new file mode 100644 index 0000000..d52e8f4 --- /dev/null +++ b/examples/plugins/Amp-onefile-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/amponefile" +#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, uint32_t 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, + uint32_t 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, uint32_t 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; + + uint32_t 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(uint32_t index) { + if (!ampDescriptor) init(); + + switch (index) { + case 0: + return ampDescriptor; + default: + return NULL; + } +} + diff --git a/examples/plugins/Amp-onefile-slv2.lv2/manifest.ttl b/examples/plugins/Amp-onefile-slv2.lv2/manifest.ttl new file mode 100644 index 0000000..8113dec --- /dev/null +++ b/examples/plugins/Amp-onefile-slv2.lv2/manifest.ttl @@ -0,0 +1,58 @@ +@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/amponefile> a lv2:Plugin ; + lv2:binary <amp.so> ; + 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" + ] +. + |