diff options
Diffstat (limited to 'src/difference.c')
| -rw-r--r-- | src/difference.c | 166 |
1 files changed, 74 insertions, 92 deletions
diff --git a/src/difference.c b/src/difference.c index 1a9db38..bee9552 100644 --- a/src/difference.c +++ b/src/difference.c @@ -18,22 +18,16 @@ */ #include <stdlib.h> -#include "lv2/lv2plug.in/ns/ext/morph/morph.h" #include "lv2/lv2plug.in/ns/lv2core/lv2.h" -#include "uris.h" -#define DIFFERENCE_MINUEND 0 -#define DIFFERENCE_SUBTRAHEND 1 -#define DIFFERENCE_DIFFERENCE 2 +#define DIFFERENCE_INPUT 0 +#define DIFFERENCE_MINUS 1 +#define DIFFERENCE_OUTPUT 2 typedef struct { - float* minuend; - float* subtrahend; - float* difference; - uint32_t minuend_is_cv; - uint32_t subtrahend_is_cv; - uint32_t difference_is_cv; - URIs uris; + float* input; + float* minus; + float* output; } Difference; static void @@ -50,128 +44,116 @@ connect_port(LV2_Handle instance, Difference* plugin = (Difference*)instance; switch (port) { - case DIFFERENCE_MINUEND: - plugin->minuend = data; + case DIFFERENCE_INPUT: + plugin->input = data; break; - case DIFFERENCE_SUBTRAHEND: - plugin->subtrahend = data; + case DIFFERENCE_MINUS: + plugin->minus = data; break; - case DIFFERENCE_DIFFERENCE: - plugin->difference = data; + case DIFFERENCE_OUTPUT: + plugin->output = data; break; } } -static LV2_Morph_Status -morph_port(LV2_Handle instance, - uint32_t port, - LV2_URID type, - const LV2_Morph_Property*const* properties) +static LV2_Handle +instantiate(const LV2_Descriptor* descriptor, + double sample_rate, + const char* bundle_path, + const LV2_Feature* const* features) { - Difference* plugin = (Difference*)instance; - - if (type != plugin->uris.lv2_ControlPort && - type != plugin->uris.lv2_CVPort) { - return LV2_MORPH_ERR_BAD_TYPE; - } - - switch (port) { - case DIFFERENCE_MINUEND: - plugin->minuend_is_cv = (type == plugin->uris.lv2_CVPort); - break; - case DIFFERENCE_SUBTRAHEND: - plugin->subtrahend_is_cv = (type == plugin->uris.lv2_CVPort); - break; - default: - return LV2_MORPH_ERR_BAD_PORT; - } - - plugin->difference_is_cv = (plugin->minuend_is_cv || - plugin->subtrahend_is_cv); + Difference* plugin = (Difference*)malloc(sizeof(Difference)); - return LV2_MORPH_SUCCESS; + return (LV2_Handle)plugin; } -static LV2_URID -port_type(LV2_Handle instance, - uint32_t port, - LV2_Morph_Property*const* properties) +static void +runDifference_iama_oa(LV2_Handle instance, + uint32_t sample_count) { Difference* plugin = (Difference*)instance; - switch (port) { - case DIFFERENCE_DIFFERENCE: - return (plugin->difference_is_cv - ? plugin->uris.lv2_CVPort - : plugin->uris.lv2_ControlPort); - default: - return 0; + /* Input (array of floats of length sample_count) */ + const float* input = plugin->input; + + /* Input to Subtract (array of floats of length sample_count) */ + const float* minus = plugin->minus; + + /* Output (array of floats of length sample_count) */ + float* output = plugin->output; + + for (uint32_t s = 0; s < sample_count; ++s) { + output[s] = input[s] - minus[s]; } } -static LV2_Handle -instantiate(const LV2_Descriptor* descriptor, - double sample_rate, - const char* bundle_path, - const LV2_Feature* const* features) +static void +runDifference_iamc_oa(LV2_Handle instance, + uint32_t sample_count) { - Difference* plugin = (Difference*)malloc(sizeof(Difference)); + Difference* plugin = (Difference*)instance; - plugin->minuend_is_cv = 0; - plugin->subtrahend_is_cv = 0; - plugin->difference_is_cv = 0; + /* Input (array of floats of length sample_count) */ + const float* input = plugin->input; - map_uris(&plugin->uris, features); + /* Input to Subtract (float value) */ + const float minus = *(plugin->minus); - return (LV2_Handle)plugin; + /* Output (array of floats of length sample_count) */ + float* output = plugin->output; + + for (uint32_t s = 0; s < sample_count; ++s) { + output[s] = input[s] - minus; + } } static void -run(LV2_Handle instance, - uint32_t sample_count) +runDifference_icma_oa(LV2_Handle instance, + uint32_t sample_count) { Difference* plugin = (Difference*)instance; - /* Minuend (array of floats of length 1 or sample_count) */ - const float* minuend = plugin->minuend; + /* Input (float value) */ + const float input = *(plugin->input); - /* Subtrahend (array of floats of length 1 or sample_count) */ - const float* subtrahend = plugin->subtrahend; + /* Input to Subtract (array of floats of length sample_count) */ + const float* minus = plugin->minus; - /* Difference (array of floats of length 1 or sample_count) */ - float* difference = plugin->difference; - - if (!plugin->difference_is_cv) { /* TODO: Avoid this branch */ - sample_count = 1; - } + /* Output (array of floats of length sample_count) */ + float* output = plugin->output; for (uint32_t s = 0; s < sample_count; ++s) { - const float min = minuend[s * plugin->minuend_is_cv]; - const float sub = subtrahend[s * plugin->subtrahend_is_cv]; - - difference[s] = min - sub; + output[s] = input - minus[s]; } } -static const void* -extension_data(const char* uri) +static void +runDifference_icmc_oc(LV2_Handle instance, + uint32_t sample_count) { - static const LV2_Morph_Interface morph = { morph_port, port_type }; - if (!strcmp(uri, LV2_MORPH__interface)) { - return &morph; - } - return NULL; + Difference* plugin = (Difference*)instance; + + /* Input (float value) */ + const float input = *(plugin->input); + + /* Input to Subtract (float value) */ + const float minus = *(plugin->minus); + + /* Output Frequency (pointer to float value) */ + float* output = plugin->output; + + output[0] = input - minus; } static const LV2_Descriptor descriptor = { - "http://drobilla.net/plugins/blop/difference", + "http://drobilla.net/plugins/blip/difference", instantiate, connect_port, NULL, - run, + runDifference_icmc_oc, NULL, cleanup, - extension_data, + NULL, }; LV2_SYMBOL_EXPORT const LV2_Descriptor* |