From cd0e36773992e26985bdec1f7a5341f83fa3e521 Mon Sep 17 00:00:00 2001 From: deva Date: Fri, 15 Jul 2011 13:02:33 +0000 Subject: New input/output plugin architecture. New LV2 plugin. --- drumgizmo/audioinputenginedl.cc | 236 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 236 insertions(+) create mode 100644 drumgizmo/audioinputenginedl.cc (limited to 'drumgizmo/audioinputenginedl.cc') diff --git a/drumgizmo/audioinputenginedl.cc b/drumgizmo/audioinputenginedl.cc new file mode 100644 index 0000000..3b2a483 --- /dev/null +++ b/drumgizmo/audioinputenginedl.cc @@ -0,0 +1,236 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * audioinputenginedl.cc + * + * Wed Jul 13 14:39:54 CEST 2011 + * Copyright 2011 Bent Bisballe Nyeng + * deva@aasimon.org + ****************************************************************************/ + +/* + * This file is part of DrumGizmo. + * + * DrumGizmo 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. + * + * DrumGizmo 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 DrumGizmo; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +#include "audioinputenginedl.h" + +#include + +#include + +#include +#include +#include + +AudioInputEngineDL::AudioInputEngineDL(std::string name) +{ + std::string plugin = INPUT_PLUGIN_DIR"/lib" + name + ".so"; + void *lib = dlopen(plugin.c_str(), RTLD_LAZY); + if(!lib) { + printf("Cannot load device: %s\n", dlerror()); + return; + } + + i_create = (input_create_func_t) dlsym(lib, "create"); + const char* dlsym_error = dlerror(); + if(dlsym_error) { + printf("Cannot load symbol create: %s\n", dlsym_error); + return; + } + + i_destroy = (input_destroy_func_t) dlsym(lib, "destroy"); + dlsym_error = dlerror(); + if(dlsym_error) { + printf("Cannot load symbol destroy: %s\n", dlsym_error); + return; + } + + i_init = (input_init_func_t) dlsym(lib, "init"); + dlsym_error = dlerror(); + if(dlsym_error) { + printf("Cannot load symbol destroy: %s\n", dlsym_error); + return; + } + + i_setparm = (input_setparm_func_t) dlsym(lib, "setparm"); + dlsym_error = dlerror(); + if(dlsym_error) { + printf("Cannot load symbol destroy: %s\n", dlsym_error); + return; + } + + i_start = (input_start_func_t) dlsym(lib, "start"); + dlsym_error = dlerror(); + if(dlsym_error) { + printf("Cannot load symbol destroy: %s\n", dlsym_error); + return; + } + + i_stop = (input_stop_func_t) dlsym(lib, "stop"); + dlsym_error = dlerror(); + if(dlsym_error) { + printf("Cannot load symbol destroy: %s\n", dlsym_error); + return; + } + + i_pre = (input_pre_func_t) dlsym(lib, "pre"); + dlsym_error = dlerror(); + if(dlsym_error) { + printf("Cannot load symbol destroy: %s\n", dlsym_error); + return; + } + + i_run = (input_run_func_t) dlsym(lib, "run"); + dlsym_error = dlerror(); + if(dlsym_error) { + printf("Cannot load symbol destroy: %s\n", dlsym_error); + return; + } + + i_post = (input_post_func_t) dlsym(lib, "post"); + dlsym_error = dlerror(); + if(dlsym_error) { + printf("Cannot load symbol destroy: %s\n", dlsym_error); + return; + } + + ptr = i_create(); +} + +AudioInputEngineDL::~AudioInputEngineDL() +{ + i_destroy(ptr); +} + +bool AudioInputEngineDL::init(Instruments &instruments) +{ + char **n = (char**)malloc(sizeof(char*)*instruments.size()); + for(size_t i = 0; i < instruments.size(); i++) { + n[i] = strdup(instruments[i].name().c_str()); + } + + bool ret = i_init(ptr, instruments.size(), n); + + for(size_t i = 0; i < instruments.size(); i++) { + free(n[i]); + } + free(n); + + return ret; +} + +void AudioInputEngineDL::setParm(std::string parm, std::string value) +{ + i_setparm(ptr, parm.c_str(), value.c_str()); +} + +bool AudioInputEngineDL::start() +{ + return i_start(ptr); +} + +void AudioInputEngineDL::stop() +{ + return i_stop(ptr); +} + +void AudioInputEngineDL::pre() +{ + return i_pre(ptr); +} + +event_t *AudioInputEngineDL::run(size_t pos, size_t len, size_t *nevents) +{ + return i_run(ptr, pos, len, nevents); +} + +void AudioInputEngineDL::post() +{ + return i_post(ptr); +} + +//#include "audioinputenginedummy.h" +//#include "audioinputenginejackmidi.h" +//#include "audioinputenginemidifile.h" + +/* + +typedef Device* (*create_func_t)(void); +typedef void (*destroy_func_t)(Device*); + +struct device_t { + Device* dev; + destroy_func_t destroyer; + void* lib; +}; + +int load_shared_device(device_t &dev, std::string devlib, + std::string devfile, ConfMap devconfmap) { + // load library + dev.lib = dlopen(devlib.c_str(), RTLD_LAZY); + if(!dev.lib ) { + printf("Cannot load device: %s\n", dlerror()); + return -1; + } + + create_func_t create_device = (create_func_t) dlsym(dev.lib, "create"); + const char* dlsym_error = dlerror(); + if(dlsym_error) { + printf("Cannot load symbol create: %s\n", dlsym_error); + return -1; + } + + dev.destroyer = (destroy_func_t) dlsym(dev.lib, "destroy"); + dlsym_error = dlerror(); + if(dlsym_error) { + printf("Cannot load symbol destroy: %s\n", dlsym_error); + return -1; + } + + dev.dev = create_device(); + + // initialize device + DevData devdata = dev.dev->init(devfile, devconfmap); + if(devdata.retval != DevData::VALUE_SUCCESS) { + printf("Error while initializing device: %s\n", devdata.msg.c_str()); + return -1; + } + + return 0; +} + +void unload_shared_device(device_t &dev) { + + dev.destroyer(dev.dev); + dlclose(dev.lib); +} +*/ + +#ifdef TEST_AUDIOINPUTENGINEDL +//Additional dependency files +//deps: +//Required cflags (autoconf vars may be used) +//cflags: +//Required link options (autoconf vars may be used) +//libs: +#include "test.h" + +TEST_BEGIN; + +// TODO: Put some testcode here (see test.h for usable macros). + +TEST_END; + +#endif/*TEST_AUDIOINPUTENGINEDL*/ -- cgit v1.2.3