diff options
Diffstat (limited to 'src/branch.c')
-rw-r--r-- | src/branch.c | 98 |
1 files changed, 94 insertions, 4 deletions
diff --git a/src/branch.c b/src/branch.c index 5ec0fff..a4de320 100644 --- a/src/branch.c +++ b/src/branch.c @@ -1,7 +1,6 @@ /* An LV2 plugin to split a signal into two. - Copyright 2011 David Robillard - + Copyright 2011-2014 David Robillard Copyright 2002 Mike Rawes This is free software: you can redistribute it and/or modify it @@ -18,8 +17,13 @@ along with this software. If not, see <http://www.gnu.org/licenses/>. */ +#include <stdio.h> + #include <stdlib.h> +#include "lv2/lv2plug.in/ns/ext/morph/morph.h" +#include "lv2/lv2plug.in/ns/ext/options/options.h" #include "lv2/lv2plug.in/ns/lv2core/lv2.h" +#include "uris.h" #define BRANCH_INPUT 0 #define BRANCH_OUTPUT1 1 @@ -29,6 +33,8 @@ typedef struct { const float* input; float* output1; float* output2; + LV2_URID input_type; + URIs uris; } Branch; static void @@ -57,6 +63,63 @@ connect_port(LV2_Handle instance, } } +static uint32_t +options_set(LV2_Handle instance, + const LV2_Options_Option* options) +{ + Branch* plugin = (Branch*)instance; + uint32_t ret = 0; + for (const LV2_Options_Option* o = options; o->key; ++o) { + if (o->context != LV2_OPTIONS_PORT) { + ret |= LV2_OPTIONS_ERR_BAD_SUBJECT; + } else if (o->key != plugin->uris.morph_currentType) { + ret |= LV2_OPTIONS_ERR_BAD_KEY; + } else if (o->type != plugin->uris.atom_URID) { + ret |= LV2_OPTIONS_ERR_BAD_VALUE; + } else { + LV2_URID port_type = *(const LV2_URID*)(o->value); + if (port_type != plugin->uris.lv2_AudioPort && + port_type != plugin->uris.lv2_CVPort && + port_type != plugin->uris.lv2_ControlPort) { + ret |= LV2_OPTIONS_ERR_BAD_VALUE; + continue; + } + switch (o->subject) { + case BRANCH_INPUT: + plugin->input_type = port_type; + break; + default: + ret |= LV2_OPTIONS_ERR_BAD_SUBJECT; + } + } + } + return ret; +} + +static uint32_t +options_get(LV2_Handle instance, + LV2_Options_Option* options) +{ + const Branch* plugin = (const Branch*)instance; + uint32_t ret = 0; + for (LV2_Options_Option* o = options; o->key; ++o) { + if (o->context != LV2_OPTIONS_PORT && + o->subject != BRANCH_OUTPUT1 && + o->subject != BRANCH_OUTPUT2) { + fprintf(stderr, "Bad subject %d\n", o->subject); + ret |= LV2_OPTIONS_ERR_BAD_SUBJECT; + } else if (o->key != plugin->uris.morph_currentType) { + fprintf(stderr, "Bad key %d\n", o->subject); + ret |= LV2_OPTIONS_ERR_BAD_KEY; + } else { + o->size = sizeof(LV2_URID); + o->type = plugin->uris.atom_URID; + o->value = &plugin->input_type; + } + } + return ret; +} + static LV2_Handle instantiate(const LV2_Descriptor* descriptor, double sample_rate, @@ -65,6 +128,9 @@ instantiate(const LV2_Descriptor* descriptor, { Branch* plugin = (Branch*)malloc(sizeof(Branch)); + map_uris(&plugin->uris, features); + plugin->input_type = plugin->uris.lv2_ControlPort; + return (LV2_Handle)plugin; } @@ -112,15 +178,39 @@ runBranch_ic_ococ(LV2_Handle instance, output2[0] = input; } +static void +run(LV2_Handle instance, + uint32_t sample_count) +{ + Branch* plugin = (Branch*)instance; + + if (plugin->input_type == plugin->uris.lv2_AudioPort || + plugin->input_type == plugin->uris.lv2_CVPort) { + runBranch_ia_oaoa(instance, sample_count); + } else { + runBranch_ic_ococ(instance, sample_count); + } +} + +static const void* +extension_data(const char* uri) +{ + static const LV2_Options_Interface options = { options_get, options_set }; + if (!strcmp(uri, LV2_OPTIONS__interface)) { + return &options; + } + return NULL; +} + static const LV2_Descriptor descriptor = { "http://drobilla.net/plugins/blop/branch", instantiate, connect_port, NULL, - runBranch_ic_ococ, + run, NULL, cleanup, - NULL, + extension_data, }; LV2_SYMBOL_EXPORT const LV2_Descriptor* |