From 6a651aca0de7262e805ff8edb12cdc4692009997 Mon Sep 17 00:00:00 2001 From: David Robillard Date: Sun, 19 Aug 2012 19:24:44 +0000 Subject: Move omins to plugins directory. git-svn-id: http://svn.drobilla.net/lad/trunk/plugins/omins.lv2@4725 a436a847-0d15-0410-975c-d299462d15a1 --- src/slew_limiter_2743.c | 259 ------------------------------------------------ 1 file changed, 259 deletions(-) delete mode 100644 src/slew_limiter_2743.c (limited to 'src/slew_limiter_2743.c') diff --git a/src/slew_limiter_2743.c b/src/slew_limiter_2743.c deleted file mode 100644 index b612f1d..0000000 --- a/src/slew_limiter_2743.c +++ /dev/null @@ -1,259 +0,0 @@ -/* slew_limiter - A LADSPA plugin that limits the rate of change of a - * signal. Increases and decreases in the signal can be - * limited separately. - * - * Copyright 2005 Lars Luthman - * LADSPA skeleton code taken from dahdsr_fexp.c by Loki Davison - * - * This plugin is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * This plugin is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA - */ - -#define _XOPEN_SOURCE 500 /* strdup */ -#include -#include -#include - -/* This defines the number of "variants", i.e. the number of separate plugins - in this file */ -#define SLIM_VARIANT_COUNT 2 - -/* These are the port numbers */ -#define SLIM_INPUT 0 -#define SLIM_MAXRISE 1 -#define SLIM_MAXFALL 2 -#define SLIM_OUTPUT 3 - -/* This is an array pointer to the descriptors of the different variants */ -LADSPA_Descriptor** slim_descriptors = 0; - -/* This is the data for a single instance of the plugin */ -typedef struct -{ - LADSPA_Data* input; - LADSPA_Data* maxrise; - LADSPA_Data* maxfall; - LADSPA_Data* reset; - LADSPA_Data* output; - LADSPA_Data srate; - LADSPA_Data last_output; -} -SLim; - -/* LADSPA hosts use this function to get the plugin descriptors */ -const LADSPA_Descriptor* ladspa_descriptor(unsigned long index) -{ - if (index < SLIM_VARIANT_COUNT) - return slim_descriptors[index]; - return 0; -} - -/* Clean up after a plugin instance */ -void cleanupSLim (LADSPA_Handle instance) -{ - free(instance); -} - -/* This is called when the hosts connects a port to a buffer */ -void connectPortSLim(LADSPA_Handle instance, - unsigned long port, LADSPA_Data* data) -{ - SLim* plugin = (SLim *)instance; - - switch (port) { - case SLIM_INPUT: - plugin->input = data; - break; - case SLIM_MAXRISE: - plugin->maxrise = data; - break; - case SLIM_MAXFALL: - plugin->maxfall = data; - break; - case SLIM_OUTPUT: - plugin->output = data; - break; - } -} - -/* The host uses this function to create an instance of a plugin */ -LADSPA_Handle instantiateSLim(const LADSPA_Descriptor * descriptor, - unsigned long sample_rate) -{ - SLim* plugin = (SLim*)calloc(1, sizeof(SLim)); - plugin->srate = (LADSPA_Data)sample_rate; - return (LADSPA_Handle)plugin; -} - -/* This is called before the hosts starts to use the plugin instance */ -void activateSLim(LADSPA_Handle instance) -{ - SLim* plugin = (SLim*)instance; - plugin->last_output = 0; -} - -/* The run function! */ -void runSLim(LADSPA_Handle instance, unsigned long sample_count, int variant) -{ - SLim* plugin = (SLim*)instance; - - if (plugin->input && plugin->output) { - unsigned long i; - LADSPA_Data maxrise, maxfall; - for (i = 0; i < sample_count; ++i) { - - if (plugin->maxrise && variant == 0) - maxrise = plugin->maxrise[i]; - else if (plugin->maxrise && variant == 1) - maxrise = plugin->maxrise[0]; - else - maxrise = 0; - - if (plugin->maxfall && variant == 0) - maxfall = plugin->maxfall[i]; - else if (plugin->maxfall && variant == 1) - maxfall = plugin->maxfall[0]; - else - maxfall = 0; - - LADSPA_Data maxinc = maxrise / plugin->srate; - LADSPA_Data maxdec = maxfall / plugin->srate; - LADSPA_Data increment = plugin->input[i] - plugin->last_output; - if (increment > maxinc) - increment = maxinc; - else if (increment < -maxdec) - increment = -maxdec; - - plugin->output[i] = plugin->last_output + increment; - plugin->last_output = plugin->output[i]; - } - } -} - -void runSLim_audio(LADSPA_Handle instance, unsigned long sample_count) -{ - runSLim(instance, sample_count, 0); -} - -void runSLim_control(LADSPA_Handle instance, unsigned long sample_count) -{ - runSLim(instance, sample_count, 1); -} - -/* Called automagically by the dynamic linker - set up global stuff here */ -void _init(void) -{ - static const unsigned long ids[] = { 2743, 2744 }; - static const char * labels[] = { "slew_limiter_ra", "slew_limiter_rc" }; - static const char * names[] = { "Slew limiter (RA)", "Slew limiter (RC)" }; - - char** port_names; - LADSPA_PortDescriptor* port_descriptors; - LADSPA_PortRangeHint* port_range_hints; - LADSPA_Descriptor* descriptor; - - LADSPA_PortDescriptor input_port_descriptors[] = - { LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO, - LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO }; - LADSPA_PortDescriptor maxrise_port_descriptors[] = - { LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO, - LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL }; - LADSPA_PortDescriptor maxfall_port_descriptors[] = - { LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO, - LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL }; - LADSPA_PortDescriptor output_port_descriptors[] = - { LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO, - LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO }; - - void (*run_functions[]) (LADSPA_Handle, unsigned long) = { runSLim_audio, - runSLim_control }; - - slim_descriptors = (LADSPA_Descriptor**)calloc(SLIM_VARIANT_COUNT, - sizeof(LADSPA_Descriptor)); - - if (slim_descriptors) { - int i; - for (i = 0; i < SLIM_VARIANT_COUNT; ++i) { - slim_descriptors[i] = - (LADSPA_Descriptor*)malloc(sizeof(LADSPA_Descriptor)); - descriptor = slim_descriptors[i]; - if (descriptor) { - descriptor->UniqueID = ids[i]; - descriptor->Label = labels[i]; - descriptor->Properties = LADSPA_PROPERTY_HARD_RT_CAPABLE; - descriptor->Name = names[i]; - descriptor->Maker = "Lars Luthman "; - descriptor->Copyright = "GPL"; - descriptor->PortCount = 4; - - port_descriptors = - (LADSPA_PortDescriptor*)calloc(4, sizeof(LADSPA_PortDescriptor)); - descriptor->PortDescriptors = - (const LADSPA_PortDescriptor*)port_descriptors; - port_range_hints = - (LADSPA_PortRangeHint*)calloc(4, sizeof(LADSPA_PortRangeHint)); - descriptor->PortRangeHints = - (const LADSPA_PortRangeHint*)port_range_hints; - - port_names = (char**)calloc(9, sizeof (char*)); - descriptor->PortNames = (const char**)port_names; - - /* Parameters for Input */ - port_descriptors[SLIM_INPUT] = input_port_descriptors[i]; - port_names[SLIM_INPUT] = "Input"; - - /* Parameters for Rise rate */ - port_descriptors[SLIM_MAXRISE] = maxrise_port_descriptors[i]; - port_names[SLIM_MAXRISE] = "Rise rate (1/s)"; - - /* Parameters for Fall rate */ - port_descriptors[SLIM_MAXFALL] = maxfall_port_descriptors[i]; - port_names[SLIM_MAXFALL] = "Fall rate (1/s)"; - - /* Parameters for Output*/ - port_descriptors[SLIM_OUTPUT] = output_port_descriptors[i]; - port_names[SLIM_OUTPUT] = "Output"; - - descriptor->activate = activateSLim; - descriptor->cleanup = cleanupSLim; - descriptor->connect_port = connectPortSLim; - descriptor->deactivate = NULL; - descriptor->instantiate = instantiateSLim; - descriptor->run = run_functions[i]; - descriptor->run_adding = NULL; - descriptor->set_run_adding_gain = NULL; - } - } - } -} - -/* Called automagically by the dynamic linker - free global stuff here */ -void _fini(void) -{ - LADSPA_Descriptor* descriptor; - int i; - - if (slim_descriptors) { - for (i = 0; i < SLIM_VARIANT_COUNT; i++) { - descriptor = slim_descriptors[i]; - if (descriptor) { - free((LADSPA_PortDescriptor*)descriptor->PortDescriptors); - free((char**)descriptor->PortNames); - free((LADSPA_PortRangeHint*)descriptor->PortRangeHints); - free(descriptor); - } - } - free(slim_descriptors); - } -} -- cgit v1.2.1