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Diffstat (limited to 'src/cli-dssi-host.h')
| -rw-r--r-- | src/cli-dssi-host.h | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/src/cli-dssi-host.h b/src/cli-dssi-host.h new file mode 100644 index 0000000..d8a7a15 --- /dev/null +++ b/src/cli-dssi-host.h @@ -0,0 +1,293 @@ +//it's most likely defined in one of alsa libs, just copy headers include from here to get it. right but it's +//a pointer right? it's a structure. do we need to know what's in it? yes we need to fill it porperly for run_synth +/* cli-dssi-host.h + * Copyright (C) 2005 James McDermott + * jamesmichaelmcdermott@gmail.com + * + * This program is derived from jack-dssi-host + * (Copyright 2004 Chris Cannam, Steve Harris and Sean Bolton). + * + * This program 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 program 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 more 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., 59 Temple Place, Suite 330, Boston, MA 01222-1307 + * USA + */ + +#ifndef _CLI_DSSI_HOST_H +#define _CLI_DSSI_HOST_H + +#define _BSD_SOURCE 1 +#define _SVID_SOURCE 1 +#define _ISOC99_SOURCE 1 + + +#define DEBUG 0 +#define MAX_LENGTH (15.0f) +#define SAMPLE_RATE 44100 +/* character used to separate SO names from plugin labels on command line */ +#define LABEL_SEP ':' +#define KEYVAL_SEP '=' +#define BANK_SEP ':' + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <sndfile.h> +#include <ladspa.h> +#include <dssi.h> +//#include <alsa/asoundlib.h> these two, conflicts with sndfile.h, so if i comment out then souce compiles on my gentoo. is sndfile part of alsa? +//#include <alsa/seq.h> i guess not. what i found it there is asoundlib.h which include a lot of files from alsa, like alsa/seq.h and others, and +//looks like we don't need to include it here, it's included from somewhere else too. ok no worries +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include <dlfcn.h> +#include <unistd.h> +#include <math.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/time.h> +#include <sys/wait.h> +#include <dirent.h> +#include <time.h> +#include <libgen.h> + + +static float sample_rate; +static int verbose = 0; +char *my_name; + +LADSPA_Data get_port_random(const LADSPA_Descriptor *plugin, int port) +{ + LADSPA_PortRangeHint hint = plugin->PortRangeHints[port]; + float lower = hint.LowerBound * + (LADSPA_IS_HINT_SAMPLE_RATE(hint.HintDescriptor) ? sample_rate : 1.0f); + float upper = hint.UpperBound * + (LADSPA_IS_HINT_SAMPLE_RATE(hint.HintDescriptor) ? sample_rate : 1.0f); + + /* FIXME: here we assume that ports are bounded, and we do not take the + * logarithmic hint into account. */ + + float x = random() / (float) RAND_MAX; + + return lower + x * (upper - lower); +} + +LADSPA_Data get_port_default(const LADSPA_Descriptor *plugin, int port) +{ + LADSPA_PortRangeHint hint = plugin->PortRangeHints[port]; + float lower = hint.LowerBound * + (LADSPA_IS_HINT_SAMPLE_RATE(hint.HintDescriptor) ? sample_rate : 1.0f); + float upper = hint.UpperBound * + (LADSPA_IS_HINT_SAMPLE_RATE(hint.HintDescriptor) ? sample_rate : 1.0f); + + if (!LADSPA_IS_HINT_HAS_DEFAULT(hint.HintDescriptor)) { + if (!LADSPA_IS_HINT_BOUNDED_BELOW(hint.HintDescriptor) || + !LADSPA_IS_HINT_BOUNDED_ABOVE(hint.HintDescriptor)) { + /* No hint, its not bounded, wild guess */ + return 0.0f; + } + + if (lower <= 0.0f && upper >= 0.0f) { + /* It spans 0.0, 0.0 is often a good guess */ + return 0.0f; + } + + /* No clues, return minimum */ + return lower; + } + + /* Try all the easy ones */ + + if (LADSPA_IS_HINT_DEFAULT_0(hint.HintDescriptor)) { + return 0.0f; + } else if (LADSPA_IS_HINT_DEFAULT_1(hint.HintDescriptor)) { + return 1.0f; + } else if (LADSPA_IS_HINT_DEFAULT_100(hint.HintDescriptor)) { + return 100.0f; + } else if (LADSPA_IS_HINT_DEFAULT_440(hint.HintDescriptor)) { + return 440.0f; + } + + /* All the others require some bounds */ + + if (LADSPA_IS_HINT_BOUNDED_BELOW(hint.HintDescriptor)) { + if (LADSPA_IS_HINT_DEFAULT_MINIMUM(hint.HintDescriptor)) { + return lower; + } + } + if (LADSPA_IS_HINT_BOUNDED_ABOVE(hint.HintDescriptor)) { + if (LADSPA_IS_HINT_DEFAULT_MAXIMUM(hint.HintDescriptor)) { + return upper; + } + if (LADSPA_IS_HINT_BOUNDED_BELOW(hint.HintDescriptor)) { + if (LADSPA_IS_HINT_LOGARITHMIC(hint.HintDescriptor) && + lower > 0.0f && upper > 0.0f) { + if (LADSPA_IS_HINT_DEFAULT_LOW(hint.HintDescriptor)) { + return expf(logf(lower) * 0.75f + logf(upper) * 0.25f); + } else if (LADSPA_IS_HINT_DEFAULT_MIDDLE(hint.HintDescriptor)) { + return expf(logf(lower) * 0.5f + logf(upper) * 0.5f); + } else if (LADSPA_IS_HINT_DEFAULT_HIGH(hint.HintDescriptor)) { + return expf(logf(lower) * 0.25f + logf(upper) * 0.75f); + } + } else { + if (LADSPA_IS_HINT_DEFAULT_LOW(hint.HintDescriptor)) { + return lower * 0.75f + upper * 0.25f; + } else if (LADSPA_IS_HINT_DEFAULT_MIDDLE(hint.HintDescriptor)) { + return lower * 0.5f + upper * 0.5f; + } else if (LADSPA_IS_HINT_DEFAULT_HIGH(hint.HintDescriptor)) { + return lower * 0.25f + upper * 0.75f; + } + } + } + } + + /* fallback */ + return 0.0f; +} + + + + +char * +load(const char *dllName, void **dll, int quiet) /* returns directory where dll found */ +{ + static char *defaultDssiPath = 0; + const char *dssiPath = getenv("DSSI_PATH"); + char *path, *origPath, *element; + const char *message; + void *handle = 0; + + /* If the dllName is an absolute path */ + if (*dllName == '/') { + if ((handle = dlopen(dllName, RTLD_NOW))) { /* real-time programs should not use RTLD_LAZY */ + *dll = handle; + path = strdup(dllName); + return dirname(path); + } else { + if (!quiet) { + fprintf(stderr, "%s: Error: Cannot find DSSI or LADSPA plugin at '%s'\n", my_name, dllName); + } + return NULL; + } + } + + if (!dssiPath) { + if (!defaultDssiPath) { + const char *home = getenv("HOME"); + if (home) { + defaultDssiPath = malloc(strlen(home) + 60); + sprintf(defaultDssiPath, "/usr/local/lib/dssi:/usr/lib/dssi:%s/.dssi", home); + } else { + defaultDssiPath = strdup("/usr/local/lib/dssi:/usr/lib/dssi"); + } + } + dssiPath = defaultDssiPath; + if (!quiet) { + fprintf(stderr, "\n%s: Warning: DSSI path not set\n%s: Defaulting to \"%s\"\n\n", my_name, my_name, dssiPath); + } + } + + path = strdup(dssiPath); + origPath = path; + *dll = 0; + + while ((element = strtok(path, ":")) != 0) { + + char *filePath; + + path = 0; + + if (element[0] != '/') { + if (!quiet) { + fprintf(stderr, "%s: Warning: Ignoring relative element \"%s\" in path\n", my_name, element); + } + continue; + } + + if (!quiet && verbose) { + fprintf(stderr, "%s: Looking for library \"%s\" in %s... ", my_name, dllName, element); + } + + filePath = (char *)malloc(strlen(element) + strlen(dllName) + 2); + sprintf(filePath, "%s/%s", element, dllName); + + if ((handle = dlopen(filePath, RTLD_NOW))) { /* real-time programs should not use RTLD_LAZY */ + if (!quiet && verbose) { + fprintf(stderr, "found\n"); + } + *dll = handle; + free(filePath); + path = strdup(element); + free(origPath); + return path; + } + + if (!quiet && verbose) { + message = dlerror(); + if (message) { + fprintf(stderr, "not found: %s\n", message); + } else { + fprintf(stderr, "not found\n"); + } + } + + free(filePath); + } + + free(origPath); + return 0; +} + +int +is_silent(LADSPA_Data *data, size_t length) { + float epsilon = 0.01f; + float sum = 0.0f; + + for (size_t i = 0; i < length; i++) { + sum += fabs(data[i]); + } + return (sum < epsilon); +} + +inline int +min(int x, int y) { + return (x < y) ? x : y; +} + + +void +parse_keyval(char *input, char sep, char **key, char **val) { + + char *tmp = strchr(input, sep); + if (tmp) { + *key = calloc(1, tmp - input + 1); + strncpy(*key, input, tmp - input); + *val = strdup(tmp + 1); + } else { + *key = strdup(input); + *val = NULL; + } +} + +typedef enum { + from_stdin, + from_defaults, + from_preset, + from_random +} port_vals_source_t; + +#endif /* _CLI_DSSI_HOST_H */ + |