From e3138b82967a71005e9f0371592e489c36c20dce Mon Sep 17 00:00:00 2001 From: Chris Cannam Date: Sat, 5 Apr 2008 13:27:01 +0000 Subject: [PATCH 01/15] * dssi-vst From 44350ac980efd62242003d73d5190b49d1aae47f Mon Sep 17 00:00:00 2001 From: Chris Cannam Date: Sat, 5 Apr 2008 13:29:08 +0000 Subject: [PATCH 02/15] * import --- COPYING | 313 +++++++++ Makefile | 70 ++ README | 214 ++++++ dssi-vst-scanner.cpp | 414 ++++++++++++ dssi-vst-server.cpp | 1459 ++++++++++++++++++++++++++++++++++++++++ dssi-vst.cpp | 703 +++++++++++++++++++ dssi-vst_gui.cpp | 301 +++++++++ paths.cpp | 40 ++ paths.h | 23 + rdwrops.cpp | 159 +++++ rdwrops.h | 35 + remoteplugin.h | 63 ++ remotepluginclient.cpp | 491 ++++++++++++++ remotepluginclient.h | 97 +++ remotepluginserver.cpp | 453 +++++++++++++ remotepluginserver.h | 101 +++ remotevstclient.cpp | 411 +++++++++++ remotevstclient.h | 48 ++ runvst.sh | 10 + vestige/aeffectx.h | 280 ++++++++ vsthost.cpp | 576 ++++++++++++++++ 21 files changed, 6261 insertions(+) create mode 100644 COPYING create mode 100644 Makefile create mode 100644 README create mode 100644 dssi-vst-scanner.cpp create mode 100644 dssi-vst-server.cpp create mode 100644 dssi-vst.cpp create mode 100644 dssi-vst_gui.cpp create mode 100644 paths.cpp create mode 100644 paths.h create mode 100644 rdwrops.cpp create mode 100644 rdwrops.h create mode 100644 remoteplugin.h create mode 100644 remotepluginclient.cpp create mode 100644 remotepluginclient.h create mode 100644 remotepluginserver.cpp create mode 100644 remotepluginserver.h create mode 100644 remotevstclient.cpp create mode 100644 remotevstclient.h create mode 100755 runvst.sh create mode 100644 vestige/aeffectx.h create mode 100644 vsthost.cpp diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..95a3a48 --- /dev/null +++ b/COPYING @@ -0,0 +1,313 @@ + + LICENSING TERMS FOR DSSI-VST + +You may distribute and/or modify dssi-vst under the terms of version 2 +of the GNU General Public License as published by the Free Software +Foundation (full text below), except that you are hereby permitted to +omit the source code to the two VST SDK header files aeffect.h and +aeffectx.h (the source code of which would otherwise be required by +section 3 of the GPL) when redistributing dssi-vst. The full terms of +the GPL continue to apply to all of the remaining source code for +dssi-vst. + + LICENSING TERMS FOR LIBLO OSC LIBRARY WHEN USED WITH DSSI-VST + +You may distribute and/or modify liblo under the terms of version 2 of +the GNU General Public License as published by the Free Software +Foundation (full text below), except that you are hereby permitted to +omit the source code to the two VST SDK header files aeffect.h and +aeffectx.h (the source code of which would otherwise be required by +section 3 of the GPL) when redistributing liblo as part of any version +of dssi-vst. This offer does not imply any exemption to the GPL for +the liblo code itself or the remainder of dssi-vst, nor to any other +derived work that may use liblo. + +*** NOTE: If you build dssi-vst using the VeSTige VST compatibility +*** header instead of the official VST SDK, then the original GNU +*** General Public License applies, and the above exception is not +*** available to you. + +*** Please see the dssi-vst README for more information about these terms. +*** The following is the standard GPL, as referred to in the above. + + + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 675 Mass Ave, Cambridge, MA 02139, USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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With this header, you no longer need to obtain +the official VST SDK in order to build dssi-vst. Many thanks to +Javier for publishing this fine piece of work. + + ** IMPORTANT: The author of dssi-vst has no connection with the + ** author of the VeSTige VST-compatibility header, has had no + ** involvement in its creation, and has not modified it in any way. + ** The VeSTige header is included in this package in the good-faith + ** belief that it has been cleanly and legally reverse engineered + ** without reference to the official VST SDK and without its + ** developer(s) having agreed to the VST SDK license agreement. + ** If you have any reason to believe that this is not the case, + ** please contact the author of dssi-vst. + +Please also read the "Licence" section further down this document. + +This release is also compatible with version 2.4r2 of the official VST +SDK. It may also compile with version 2.3. + + +Build etc +--------- + +To build dssi-vst, you will need: + +* The DSSI header. + +* Wine 0.9.5 or newer and its development tools -- http://www.winehq.com/ + +* Steve Harris's liblo "Lite OSC" library -- http://liblo.sf.net/ -- + version 0.9 or newer. + +* OPTIONALLY the VST SDK headers. The URL for downloading these seems + to change every week, but at the time of writing it is: + + http://www.steinberg.de/331+M54a708de802.html + + These are free to download, but you need to agree to Steinberg's + licensing terms and you may not redistribute them. Unzip the SDK + into the current directory (creating a subdirectory called vstsdk2.4). + + If you wish to use the official VST SDK, please edit the Makefile + as directed in its comments. + +Once you have all of the above, you should be able to build and +install by running "make" then "make install". + +To use dssi-vst: make sure DSSI_PATH is set appropriately, set +VST_PATH to a colon-separated list of the directories containing VST +plugins, and start up your DSSI host. + +The plugin soname is dssi-vst.so, and each VST plugin gets a label +corresponding to its DLL name. So for example, with +jack-dssi-host, you should be able to just run + + jack-dssi-host dssi-vst.so:MyVstPlugin.dll + +Source files: + +* dssi-vst.cpp: DSSI plugin implementation +* dssi-vst_gui.cpp: DSSI plugin GUI process implementation +* dssi-vst-scanner.cpp: Program that determines what VSTs you have and + communicates that to the plugin +* dssi-vst-server.cpp: Program that hosts a single VST with a comms link + to the plugin +* rdwrops.cpp, paths.cpp: misc functions +* remotepluginclient.cpp/remotepluginserver.cpp: Code to handle process + separation for audio plugin (not VST specific), used by DSSI plugin & server +* vsthost.cpp: JACK/aseq host for VSTs using dssi-vst-server, but not using + the actual DSSI plugin. + + +Bugs and limitations +-------------------- + +Does not handle multiple VST plugins in a single DLL. + +Does not handle multi-channel support correctly yet. DSSI does not +use MIDI channels, so dssi-vst should permit separate instances +delivering to separate VST MIDI channels using run_multiple_synths to +share the VST plugin. + +Does not communicate tempo and beat information to the VST plugin (the +VST API has a mechanism for this, but DSSI does not... yet). + +Has a tendency to leave FIFOs and shared-memory files lying around in +the temporary directory (/tmp or /var/tmp). You may want to go and +remove anything starting with "rplugin_" occasionally... + + +Why not use vstserver or libfst? +-------------------------------- + +dssi-vst doesn't use libfst because libfst is just too serious a thing +to start messing about with in a plugin whose host doesn't know about +it (because it involves introducing Wine threads into the host). + +The main reason dssi-vst doesn't use vstserver is that I wrote most of +this code quite a while ago as an exercise, and I've just got used to +my own code. Architecturally dssi-vst is like vstserver in that it +runs the VST plugin in a separate process and communicates with it via +some IPC mechanism (here shared memory and POSIX FIFOs, in vstserver +shared memory and Unix domain sockets). + +Good points of dssi-vst: + +* Bugs in dssi-vst aside, it ought to be impossible for a misbehaving + VST plugin to crash its host. It's therefore theoretically possible + for dssi-vst to be more stable for audio use than an fst host. + (The same is true of vstserver.) + +* DSSI provides a closer match to the VST feature set than LADSPA + does -- apart from the synth stuff, this plugin handles VST programs + as well as parameters -- which makes it more useful than vstserver's + existing ladspavst plugin. + +* Obviously, dssi-vst allows any DSSI host to become a VST host + without having to know anything about VST or to have a code (or + licence) dependency on the VST SDK, which is not the case with fst. + +Bad points: + +* Processes everywhere. Besides your host process, you get a + server process to do the actual audio processing, a scanner + process to identify the available VST plugins, and a GUI process. + All of these except the GUI process (which in fact does nothing + except send information around between the other processes) are + winelib applications that are run under Wine. dssi-vst is useful + for running the odd synth or effect on a fast machine, not for + doing all your effects work. + +* It's hard to make sure things like the communications FIFOs are + tidied up when exiting. Apart from anything else it requires + that the host call cleanup() on its plugins when exiting from + ctrl-C or whatever. A model with a server shared among many + plugins would cope better with this by having the server take + ownership of such resources instead of the DSSI plugin. + +* The comms model dssi-vst uses introduces a fixed latency equal to + the JACK period size, as well as any existing latency in the VST + plugin. (The fixed latency is exposed through the _latency output + control port. Does anyone know how to find out the latency of a + VST plugin?) + + +Licence +------- + +dssi-vst is offered under two alternative licensing schemes: the GNU +General Public License (GPL), or the GPL with a special exception for +the VST SDK headers. + +* GPL. If you choose to compile with the VeSTige VST compatibility +header, then you may distribute and/or modify dssi-vst 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. Note that in order to accept this +license, you must not have included any part of the official VST +SDK in your dssi-vst build. Provided that this is the case, please +ignore the remainder of this Licence section. + +* GPL-with-exception. If you compile dssi-vst with the official VST +SDK headers, you may distribute the results under the following +licence terms: + +"You may distribute and/or modify dssi-vst under the terms of version 2 +of the GNU General Public License as published by the Free Software +Foundation, except that you are hereby permitted to omit the source +code to the two VST SDK header files AEffect.h and aeffectx.h (the +source code of which would otherwise be required by section 3 of the +GPL) when redistributing dssi-vst. The full terms of the GPL continue +to apply to all of the remaining source code for dssi-vst. + +Chris Cannam, cannam@all-day-breakfast.com" + +Note that these two licensing schemes are exclusive. If you accept +the GPL-with-exception option, you may not distribute the VeSTige +header code with or in dssi-vst. If you accept the GPL option, you +may not distribute binaries of dssi-vst built with the official VST +SDK. The default for dssi-vst is to build using the VeSTige headers, +and therefore the result is covered by the GPL without any additional +exception. + + +Licence for liblo +----------------- + +dssi-vst makes use of the liblo library by Steve Harris, which is +provided under the GPL. Steve Harris has provided the following +exemption to permit the liblo library to be used with dssi-vst: + +"You are hereby permitted to omit the source code to the two VST SDK +header files AEffect.h and aeffectx.h (the source code of which would +otherwise be required by section 3 of the GPL) when redistributing any +version of dssi-vst which uses liblo. This offer does not imply any +exemption to the GPL for the liblo code itself or the remainder of +dssi-vst, nor to any other derived work that may use liblo. + +Steve Harris +steve plugin org uk" + diff --git a/dssi-vst-scanner.cpp b/dssi-vst-scanner.cpp new file mode 100644 index 0000000..972e72a --- /dev/null +++ b/dssi-vst-scanner.cpp @@ -0,0 +1,414 @@ +// -*- c-basic-offset: 4 -*- + +/* + dssi-vst: a DSSI plugin wrapper for VST effects and instruments + Copyright 2004-2006 Chris Cannam +*/ + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#define WIN32_LEAN_AND_MEAN +#include + +#include "aeffectx.h" + +#include "remotepluginserver.h" +#include "paths.h" + +#define APPLICATION_CLASS_NAME "dssi_vst" +#define OLD_PLUGIN_ENTRY_POINT "main" +#define NEW_PLUGIN_ENTRY_POINT "VSTPluginMain" + +#if VST_FORCE_DEPRECATED +#define DEPRECATED_VST_SYMBOL(x) __##x##Deprecated +#else +#define DEPRECATED_VST_SYMBOL(x) x +#endif + +using namespace std; + + +#if VST_2_4_EXTENSIONS +VstIntPtr VSTCALLBACK +hostCallback(AEffect *plugin, VstInt32 opcode, VstInt32 index, + VstIntPtr value, void *ptr, float opt) +#else +long VSTCALLBACK +hostCallback(AEffect *plugin, long opcode, long index, + long value, void *ptr, float opt) +#endif +{ + static VstTimeInfo timeInfo; + + switch (opcode) { + + case audioMasterVersion: + return 2300; + + case audioMasterGetVendorString: + strcpy((char *)ptr, "Chris Cannam"); + break; + + case audioMasterGetProductString: + strcpy((char *)ptr, "DSSI VST Wrapper Plugin Scanner"); + break; + + case audioMasterGetVendorVersion: + return long(RemotePluginVersion * 100); + + case audioMasterGetLanguage: + return kVstLangEnglish; + + case audioMasterCanDo: + if (!strcmp((char*)ptr, "sendVstEvents") || + !strcmp((char*)ptr, "sendVstMidiEvent") || + !strcmp((char*)ptr, "sendVstTimeInfo") || + !strcmp((char*)ptr, "sizeWindow") || + !strcmp((char*)ptr, "supplyIdle")) { + return 1; + } + break; + + case audioMasterGetTime: + timeInfo.samplePos = 0; + timeInfo.sampleRate = 48000; + timeInfo.flags = 0; // don't mark anything valid except default samplePos/Rate + return (long)&timeInfo; + + case DEPRECATED_VST_SYMBOL(audioMasterTempoAt): + // can't support this, return 120bpm + return 120 * 10000; + + case audioMasterGetSampleRate: + plugin->dispatcher(plugin, effSetSampleRate, + 0, 0, NULL, 48000.0); + break; + + case audioMasterGetBlockSize: + plugin->dispatcher(plugin, effSetBlockSize, + 0, 1024, NULL, 0); + break; + + case DEPRECATED_VST_SYMBOL(audioMasterWillReplaceOrAccumulate): + // 0 -> unsupported, 1 -> replace, 2 -> accumulate + return 1; + + case audioMasterGetCurrentProcessLevel: + // 0 -> unsupported, 1 -> gui, 2 -> process, 3 -> midi/timer, 4 -> offline + return 1; + + case DEPRECATED_VST_SYMBOL(audioMasterGetParameterQuantization): + return 1; + + case DEPRECATED_VST_SYMBOL(audioMasterNeedIdle): + return 1; + + case DEPRECATED_VST_SYMBOL(audioMasterWantMidi): + return 1; + + default: + ; + } + + return 0; +}; + +int WINAPI +WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, LPSTR cmdline, int cmdshow) +{ + char *destFile = 0; + + cout << "DSSI VST plugin scanner v0.3" << endl; + cout << "Copyright (c) 2004-2007 Chris Cannam" << endl; + + if (cmdline && cmdline[0]) destFile = strdup(cmdline); + + int targetfd = 0; + if (destFile) { + if ((targetfd = open(destFile, O_WRONLY)) < 0) { + cerr << "dssi-vst-scanner: Failed to open output file " << destFile; + perror(" "); + cerr << "dssi-vst-scanner: Defaulting to stdout" << endl; + targetfd = 0; + } + } + + int version = int(RemotePluginVersion * 1000); + write(targetfd, &version, sizeof(int)); + + HINSTANCE libHandle = 0; + + std::vector vstPath = Paths::getPath + ("VST_PATH", "/usr/local/lib/vst:/usr/lib/vst", "/vst"); + + for (size_t i = 0; i < vstPath.size(); ++i) { + + std::string vstDir = vstPath[i]; + + DIR *directory = opendir(vstDir.c_str()); + if (!directory) { +// cerr << "dssi-vst-scanner: couldn't read VST directory \"" +// << vstDir << "\"" << std::endl; + continue; + } + + struct dirent *entry; + char *home = getenv("HOME"); + std::string cacheDir = std::string(home) + "/.dssi-vst"; + bool haveCacheDir = false; + + DIR *test = opendir(cacheDir.c_str()); + if (!test) { + if (mkdir(cacheDir.c_str(), 0755)) { + cerr << "dssi-vst-scanner: failed to create cache directory " << cacheDir; + perror(0); + } else { + haveCacheDir = true; + } + } else { + haveCacheDir = true; + closedir(test); + } + + while ((entry = readdir(directory))) { + + // For each plugin, we write: + // + // dll name (64 chars) + // name (64 chars) + // vendor (64 chars) + // is synth (bool) + // have editor (bool) + // input count (int) + // output count (int) + // + // parameter count (int) + // then for each parameter: + // name (64 chars) + // default value (float) + // + // program count (int) + // then for each program: + // name (64 chars) + + std::string libname = entry->d_name; + + if (libname[0] == '.' || + libname.length() < 5 || + (libname.substr(libname.length() - 4) != ".dll" && + libname.substr(libname.length() - 4) != ".DLL")) { + continue; + } + + int fd = targetfd; + bool haveCache = false; + bool writingCache = false; + std::string cacheFileName = cacheDir + "/" + libname + ".cache"; + + if (haveCacheDir) { + + struct stat st; + if (!stat(cacheFileName.c_str(), &st)) { + int testfd = open(cacheFileName.c_str(), O_RDONLY); + if (testfd >= 0) { + int testVersion = 0; + if (read(testfd, &testVersion, sizeof(int)) == sizeof(int) && + testVersion == version) { + haveCache = true; + } else { + cerr << "dssi-vst-scanner: Cache version mismatch for file " + << cacheFileName << " (" << testVersion << ", wanted " + << version << ") - rewriting" << endl; + } + close(testfd); + } + } + if (!haveCache) { + if ((fd = open(cacheFileName.c_str(), O_WRONLY | O_CREAT, 0644)) < 0) { + cerr << "dssi-vst-scanner: Failed to open cache file " << cacheFileName; + perror(" for writing"); + fd = targetfd; + } else { + writingCache = true; + write(fd, &version, sizeof(int)); + } + } + } + + if (!haveCache) { + + int inputs = 0, outputs = 0, params = 0, programs = 0; + char buffer[65]; + unsigned long uniqueId = 0; + bool synth = false, gui = false; + int i = 0; + AEffect *(__stdcall* getInstance)(audioMasterCallback) = 0; + AEffect *plugin = 0; + std::string libPath; + + if (vstDir[vstDir.length()-1] == '/') { + libPath = vstDir + libname; + } else { + libPath = vstDir + "/" + libname; + } + + libHandle = LoadLibrary(libPath.c_str()); + cerr << "dssi-vst-scanner: " << (libHandle ? "" : "not ") + << "found in " << libPath << endl; + + if (!libHandle) { + if (home && home[0] != '\0') { + if (libPath.substr(0, strlen(home)) == home) { + libPath = libPath.substr(strlen(home) + 1); + } + libHandle = LoadLibrary(libPath.c_str()); + cerr << "dssi-vst-scanner: " << (libHandle ? "" : "not ") + << "found in " << libPath << endl; + } + } + + if (!libHandle) { + cerr << "dssi-vst-scanner: Couldn't load DLL " << libPath << endl; + goto done; + } + + getInstance = (AEffect*(__stdcall*)(audioMasterCallback)) + GetProcAddress(libHandle, NEW_PLUGIN_ENTRY_POINT); + + if (!getInstance) { + getInstance = (AEffect*(__stdcall*)(audioMasterCallback)) + GetProcAddress(libHandle, OLD_PLUGIN_ENTRY_POINT); + + if (!getInstance) { + cerr << "dssi-vst-scanner: VST entrypoints \"" + << NEW_PLUGIN_ENTRY_POINT << "\" or \"" + << OLD_PLUGIN_ENTRY_POINT << "\" not found in DLL \"" + << libname << "\"" << endl; + goto done; + } + } + + plugin = getInstance(hostCallback); + + if (!plugin) { + cerr << "dssi-vst-scanner: Failed to instantiate plugin in VST DLL \"" + << libPath << "\"" << endl; + goto done; + } + + if (plugin->magic != kEffectMagic) { + cerr << "dssi-vst-scanner: Not a VST effect in DLL \"" + << libPath << "\"" << endl; + goto done; + } + + if (!plugin->flags & effFlagsCanReplacing) { + cerr << "dssi-vst-scanner: Effect does not support processReplacing (required)" + << endl; + goto done; + } + + memset(buffer, 0, 65); + snprintf(buffer, 64, "%s", libname.c_str()); + write(fd, buffer, 64); + + memset(buffer, 0, 65); + plugin->dispatcher(plugin, effGetEffectName, 0, 0, buffer, 0); + if (buffer[0] == '\0') { + snprintf(buffer, 64, "%s", libname.c_str()); + } + write(fd, buffer, 64); + + memset(buffer, 0, 65); + plugin->dispatcher(plugin, effGetVendorString, 0, 0, buffer, 0); + write(fd, buffer, 64); + + synth = false; + if (plugin->flags & effFlagsIsSynth) synth = true; + write(fd, &synth, sizeof(bool)); + + gui = false; + if (plugin->flags & effFlagsHasEditor) gui = true; + write(fd, &gui, sizeof(bool)); + + inputs = plugin->numInputs; + write(fd, &inputs, sizeof(int)); + + outputs = plugin->numOutputs; + write(fd, &outputs, sizeof(int)); + + params = plugin->numParams; + write(fd, ¶ms, sizeof(int)); + + for (i = 0; i < params; ++i) { + memset(buffer, 0, 65); + plugin->dispatcher(plugin, effGetParamName, i, 0, buffer, 0); + write(fd, buffer, 64); + float f = plugin->getParameter(plugin, i); + write(fd, &f, sizeof(float)); + } + + programs = plugin->numPrograms; + write(fd, &programs, sizeof(int)); + + for (i = 0; i < programs; ++i) { + memset(buffer, 0, 65); + // effGetProgramName appears to return the name of the + // current program, not program -- though we + // pass in as well, just in case + plugin->dispatcher(plugin, effSetProgram, 0, i, NULL, 0); + plugin->dispatcher(plugin, effGetProgramName, i, 0, buffer, 0); + write(fd, buffer, 64); + } + + done: + if (plugin) plugin->dispatcher(plugin, effClose, 0, 0, NULL, 0); + FreeLibrary(libHandle); + } + + if (writingCache) { + close(fd); + } + + if (haveCache || writingCache) { + // need to read from cache as well + if ((fd = open(cacheFileName.c_str(), O_RDONLY)) < 0) { + cerr << "dssi-vst-scanner: Failed to open cache file " << cacheFileName; + perror("for reading"); + } else { + int testVersion = 0; + if (read(fd, &testVersion, sizeof(int)) != sizeof(int) || + testVersion != version) { + cerr << "dssi-vst-scanner: Internal error: cache file " << cacheFileName << " verified earlier, but now fails version test (" << testVersion << " != " << version << ")" << endl; + } else { + unsigned char c; + while (read(fd, &c, 1) == 1) { + write(targetfd, &c, 1); + } + } + close(fd); + } + } + } + + closedir(directory); + } + + if (targetfd != 0) { + close(targetfd); + } + + return 0; +} + + diff --git a/dssi-vst-server.cpp b/dssi-vst-server.cpp new file mode 100644 index 0000000..2e12d87 --- /dev/null +++ b/dssi-vst-server.cpp @@ -0,0 +1,1459 @@ +// -*- c-basic-offset: 4 -*- + +/* + dssi-vst: a DSSI plugin wrapper for VST effects and instruments + Copyright 2004-2006 Chris Cannam +*/ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#define WIN32_LEAN_AND_MEAN +#include + +#include "aeffectx.h" + +#include "remotepluginserver.h" + +#include "paths.h" +#include "rdwrops.h" + +#define APPLICATION_CLASS_NAME "dssi_vst" +#define OLD_PLUGIN_ENTRY_POINT "main" +#define NEW_PLUGIN_ENTRY_POINT "VSTPluginMain" + +#if VST_FORCE_DEPRECATED +#define DEPRECATED_VST_SYMBOL(x) __##x##Deprecated +#else +#define DEPRECATED_VST_SYMBOL(x) x +#endif + +struct Rect { + short top; + short left; + short bottom; + short right; +}; + +static bool inProcessThread = false; +static HANDLE audioThreadHandle = 0; +static bool exiting = false; +static HWND hWnd = 0; +static double currentSamplePosition = 0.0; + +static bool ready = false; +static bool alive = false; +static int bufferSize = 0; +static int sampleRate = 0; +static bool guiVisible = false; + +static RemotePluginDebugLevel debugLevel = RemotePluginDebugSetup; +static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; + +using namespace std; + +class RemoteVSTServer : public RemotePluginServer +{ +public: + RemoteVSTServer(std::string fileIdentifiers, AEffect *plugin, std::string fallbackName); + virtual ~RemoteVSTServer(); + + virtual bool isReady() { return ready; } + + virtual std::string getName() { return m_name; } + virtual std::string getMaker() { return m_maker; } + virtual void setBufferSize(int); + virtual void setSampleRate(int); + virtual void reset(); + virtual void terminate(); + + virtual int getInputCount() { return m_plugin->numInputs; } + virtual int getOutputCount() { return m_plugin->numOutputs; } + + virtual int getParameterCount() { return m_plugin->numParams; } + virtual std::string getParameterName(int); + virtual void setParameter(int, float); + virtual float getParameter(int); + virtual float getParameterDefault(int); + virtual void getParameters(int, int, float *); + + virtual int getProgramCount() { return m_plugin->numPrograms; } + virtual std::string getProgramName(int); + virtual void setCurrentProgram(int); + + virtual bool hasMIDIInput() { return m_hasMIDI; } + virtual void sendMIDIData(unsigned char *data, + int *frameOffsets, + int events); + + virtual void showGUI(std::string); + virtual void hideGUI(); + + virtual void process(float **inputs, float **outputs); + + virtual void setDebugLevel(RemotePluginDebugLevel level) { + debugLevel = level; + } + + virtual bool warn(std::string); + + void startEdit(); + void endEdit(); + void monitorEdits(); + void scheduleGUINotify(int index, float value); + void notifyGUI(int index, float value); + void checkGUIExited(); + void terminateGUIProcess(); + +private: + AEffect *m_plugin; + + std::string m_name; + std::string m_maker; + + // These should be referred to from the GUI thread only + std::string m_guiFifoFile; + int m_guiFifoFd; + int m_guiEventsExpected; + struct timeval m_lastGuiComms; + + // To be written by the audio thread and read by the GUI thread +#define PARAMETER_CHANGE_COUNT 200 + int m_paramChangeIndices[PARAMETER_CHANGE_COUNT]; + float m_paramChangeValues[PARAMETER_CHANGE_COUNT]; + int m_paramChangeReadIndex; + int m_paramChangeWriteIndex; + + enum { + EditNone, + EditStarted, + EditFinished + } m_editLevel; + + float *m_defaults; + float *m_values; + bool m_hasMIDI; +}; + +static RemoteVSTServer *remoteVSTServerInstance = 0; + +RemoteVSTServer::RemoteVSTServer(std::string fileIdentifiers, + AEffect *plugin, std::string fallbackName) : + RemotePluginServer(fileIdentifiers), + m_plugin(plugin), + m_name(fallbackName), + m_maker(""), + m_guiFifoFile(""), + m_guiFifoFd(-1), + m_guiEventsExpected(0), + m_paramChangeReadIndex(0), + m_paramChangeWriteIndex(0), + m_editLevel(EditNone) +{ + pthread_mutex_lock(&mutex); + + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: opening plugin" << endl; + } + + m_plugin->dispatcher(m_plugin, effOpen, 0, 0, NULL, 0); + m_plugin->dispatcher(m_plugin, effMainsChanged, 0, 0, NULL, 0); + + m_hasMIDI = false; + + if (m_plugin->dispatcher(m_plugin, effGetVstVersion, 0, 0, NULL, 0) < 2) { + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: plugin is VST 1.x" << endl; + } + } else { + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: plugin is VST 2.0 or newer" << endl; + } + if ((m_plugin->flags & effFlagsIsSynth)) { + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: plugin is a synth" << endl; + } + m_hasMIDI = true; + } else { + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: plugin is not a synth" << endl; + } + if (m_plugin->dispatcher(m_plugin, effCanDo, 0, 0, (void *)"receiveVstMidiEvent", 0) > 0) { + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: plugin can receive MIDI anyway" << endl; + } + m_hasMIDI = true; + } + } + } + + char buffer[65]; + buffer[0] = '\0'; + m_plugin->dispatcher(m_plugin, effGetEffectName, 0, 0, buffer, 0); + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: plugin name is \"" << buffer + << "\"" << endl; + } + if (buffer[0]) m_name = buffer; + + buffer[0] = '\0'; + m_plugin->dispatcher(m_plugin, effGetVendorString, 0, 0, buffer, 0); + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: vendor string is \"" << buffer + << "\"" << endl; + } + if (buffer[0]) m_maker = buffer; + + m_plugin->dispatcher(m_plugin, effMainsChanged, 0, 1, NULL, 0); + + m_defaults = new float[m_plugin->numParams]; + m_values = new float[m_plugin->numParams]; + for (int i = 0; i < m_plugin->numParams; ++i) { + m_defaults[i] = m_plugin->getParameter(m_plugin, i); + m_values[i] = m_defaults[i]; + } + + pthread_mutex_unlock(&mutex); +} + +RemoteVSTServer::~RemoteVSTServer() +{ + pthread_mutex_lock(&mutex); + + if (m_guiFifoFd >= 0) { + try { + writeOpcode(m_guiFifoFd, RemotePluginTerminate); + } catch (...) { } + close(m_guiFifoFd); + } + + if (guiVisible) { + ShowWindow(hWnd, SW_HIDE); + UpdateWindow(hWnd); + m_plugin->dispatcher(m_plugin, effEditClose, 0, 0, 0, 0); + guiVisible = false; + } + + m_plugin->dispatcher(m_plugin, effMainsChanged, 0, 0, NULL, 0); + m_plugin->dispatcher(m_plugin, effClose, 0, 0, NULL, 0); + delete[] m_defaults; + + pthread_mutex_unlock(&mutex); +} + +void +RemoteVSTServer::process(float **inputs, float **outputs) +{ + if (pthread_mutex_trylock(&mutex)) { + for (int i = 0; i < m_plugin->numOutputs; ++i) { + memset(outputs[i], 0, bufferSize * sizeof(float)); + } + currentSamplePosition += bufferSize; + return; + } + + inProcessThread = true; + + // superclass guarantees setBufferSize will be called before this + m_plugin->processReplacing(m_plugin, inputs, outputs, bufferSize); + currentSamplePosition += bufferSize; + + inProcessThread = false; + pthread_mutex_unlock(&mutex); +} + +void +RemoteVSTServer::setBufferSize(int sz) +{ + pthread_mutex_lock(&mutex); + + if (bufferSize != sz) { + m_plugin->dispatcher(m_plugin, effMainsChanged, 0, 0, NULL, 0); + m_plugin->dispatcher(m_plugin, effSetBlockSize, 0, sz, NULL, 0); + m_plugin->dispatcher(m_plugin, effMainsChanged, 0, 1, NULL, 0); + bufferSize = sz; + } + + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: set buffer size to " << sz << endl; + } + + pthread_mutex_unlock(&mutex); +} + +void +RemoteVSTServer::setSampleRate(int sr) +{ + pthread_mutex_lock(&mutex); + + if (sampleRate != sr) { + m_plugin->dispatcher(m_plugin, effMainsChanged, 0, 0, NULL, 0); + m_plugin->dispatcher(m_plugin, effSetSampleRate, 0, 0, NULL, (float)sr); + m_plugin->dispatcher(m_plugin, effMainsChanged, 0, 1, NULL, 0); + sampleRate = sr; + } + + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: set sample rate to " << sr << endl; + } + + pthread_mutex_unlock(&mutex); +} + +void +RemoteVSTServer::reset() +{ + pthread_mutex_lock(&mutex); + + cerr << "dssi-vst-server[1]: reset" << endl; + + m_plugin->dispatcher(m_plugin, effMainsChanged, 0, 0, NULL, 0); + m_plugin->dispatcher(m_plugin, effMainsChanged, 0, 1, NULL, 0); + + pthread_mutex_unlock(&mutex); +} + +void +RemoteVSTServer::terminate() +{ + cerr << "RemoteVSTServer::terminate: setting exiting flag" << endl; + exiting = true; +} + +std::string +RemoteVSTServer::getParameterName(int p) +{ + char name[24]; + m_plugin->dispatcher(m_plugin, effGetParamName, p, 0, name, 0); + return name; +} + +void +RemoteVSTServer::setParameter(int p, float v) +{ + if (debugLevel > 1) { + cerr << "dssi-vst-server[2]: setParameter (" << p << "," << v << ")" << endl; + } + + pthread_mutex_lock(&mutex); + + cerr << "RemoteVSTServer::setParameter (" << p << "," << v << "): " << m_guiEventsExpected << " events expected" << endl; + + if (m_guiFifoFd < 0) { + m_guiEventsExpected = 0; + } + + if (m_guiEventsExpected > 0) { + + //!!! should be per-parameter of course! + + struct timeval tv; + gettimeofday(&tv, NULL); + + if (tv.tv_sec > m_lastGuiComms.tv_sec + 10) { + m_guiEventsExpected = 0; + } else { + --m_guiEventsExpected; + cerr << "Reduced to " << m_guiEventsExpected << endl; + pthread_mutex_unlock(&mutex); + return; + } + } + + pthread_mutex_unlock(&mutex); + + m_plugin->setParameter(m_plugin, p, v); +} + +float +RemoteVSTServer::getParameter(int p) +{ + return m_plugin->getParameter(m_plugin, p); +} + +float +RemoteVSTServer::getParameterDefault(int p) +{ + return m_defaults[p]; +} + +void +RemoteVSTServer::getParameters(int p0, int pn, float *v) +{ + for (int i = p0; i <= pn; ++i) { + v[i - p0] = m_plugin->getParameter(m_plugin, i); + } +} + +std::string +RemoteVSTServer::getProgramName(int p) +{ + if (debugLevel > 1) { + cerr << "dssi-vst-server[2]: getProgramName(" << p << ")" << endl; + } + + pthread_mutex_lock(&mutex); + + char name[24]; + // effGetProgramName appears to return the name of the current + // program, not program -- though we pass in as + // well, just in case + long prevProgram = + m_plugin->dispatcher(m_plugin, effGetProgram, 0, 0, NULL, 0); + m_plugin->dispatcher(m_plugin, effSetProgram, 0, p, NULL, 0); + m_plugin->dispatcher(m_plugin, effGetProgramName, p, 0, name, 0); + m_plugin->dispatcher(m_plugin, effSetProgram, 0, prevProgram, NULL, 0); + + pthread_mutex_unlock(&mutex); + return name; +} + +void +RemoteVSTServer::setCurrentProgram(int p) +{ + if (debugLevel > 1) { + cerr << "dssi-vst-server[2]: setCurrentProgram(" << p << ")" << endl; + } + + pthread_mutex_lock(&mutex); + + m_plugin->dispatcher(m_plugin, effSetProgram, 0, p, 0, 0); + + pthread_mutex_unlock(&mutex); +} + +void +RemoteVSTServer::sendMIDIData(unsigned char *data, int *frameOffsets, int events) +{ +#define MIDI_EVENT_BUFFER_COUNT 1024 + static VstMidiEvent vme[MIDI_EVENT_BUFFER_COUNT]; + static char evbuf[sizeof(VstMidiEvent *) * MIDI_EVENT_BUFFER_COUNT + + sizeof(VstEvents)]; + + VstEvents *vstev = (VstEvents *)evbuf; + vstev->reserved = 0; + + int ix = 0; + + if (events > MIDI_EVENT_BUFFER_COUNT) { + std::cerr << "vstserv: WARNING: " << events << " MIDI events received " + << "for " << MIDI_EVENT_BUFFER_COUNT << "-event buffer" + << std::endl; + events = MIDI_EVENT_BUFFER_COUNT; + } + + while (ix < events) { + + vme[ix].type = kVstMidiType; + vme[ix].byteSize = 24; + vme[ix].deltaFrames = (frameOffsets ? frameOffsets[ix] : 0); + vme[ix].flags = 0; + vme[ix].noteLength = 0; + vme[ix].noteOffset = 0; + vme[ix].detune = 0; + vme[ix].noteOffVelocity = 0; + vme[ix].reserved1 = 0; + vme[ix].reserved2 = 0; + vme[ix].midiData[0] = data[ix*3]; + vme[ix].midiData[1] = data[ix*3+1]; + vme[ix].midiData[2] = data[ix*3+2]; + vme[ix].midiData[3] = 0; + + vstev->events[ix] = (VstEvent *)&vme[ix]; + + if (debugLevel > 1) { + cerr << "dssi-vst-server[2]: MIDI event in: " + << (int)data[ix*3] << " " + << (int)data[ix*3+1] << " " + << (int)data[ix*3+2] << endl; + } + + ++ix; + } + + pthread_mutex_lock(&mutex); + + vstev->numEvents = events; + if (!m_plugin->dispatcher(m_plugin, effProcessEvents, 0, 0, vstev, 0)) { + cerr << "WARNING: " << ix << " MIDI event(s) rejected by plugin" << endl; + } + + pthread_mutex_unlock(&mutex); +} + +bool +RemoteVSTServer::warn(std::string warning) +{ + if (hWnd) MessageBox(hWnd, warning.c_str(), "Error", 0); + return true; +} + +void +RemoteVSTServer::showGUI(std::string guiData) +{ + if (debugLevel > 0) { + cerr << "RemoteVSTServer::showGUI(" << guiData << "): guiVisible is " << guiVisible << endl; + } + + if (guiVisible) return; + + if (guiData != m_guiFifoFile || m_guiFifoFd < 0) { + + if (m_guiFifoFd >= 0) { + close(m_guiFifoFd); + m_guiFifoFd = -1; + } + + m_guiFifoFile = guiData; + + if ((m_guiFifoFd = open(m_guiFifoFile.c_str(), O_WRONLY | O_NONBLOCK)) < 0) { + perror(m_guiFifoFile.c_str()); + cerr << "WARNING: Failed to open FIFO to GUI manager process" << endl; + pthread_mutex_unlock(&mutex); + return; + } + + writeOpcode(m_guiFifoFd, RemotePluginIsReady); + } + + m_plugin->dispatcher(m_plugin, effEditOpen, 0, 0, hWnd, 0); + Rect *rect = 0; + m_plugin->dispatcher(m_plugin, effEditGetRect, 0, 0, &rect, 0); + if (!rect) { + cerr << "dssi-vst-server: ERROR: Plugin failed to report window size\n" << endl; + } else { + // Seems we need to provide space in here for the titlebar + // and frame, even though we don't know how big they'll + // be! How crap. + SetWindowPos(hWnd, 0, 0, 0, + rect->right - rect->left + 6, + rect->bottom - rect->top + 25, + SWP_NOACTIVATE | SWP_NOMOVE | + SWP_NOOWNERZORDER | SWP_NOZORDER); + + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: sized window" << endl; + } + + ShowWindow(hWnd, SW_SHOWNORMAL); + UpdateWindow(hWnd); + guiVisible = true; + } + + m_paramChangeReadIndex = m_paramChangeWriteIndex; +} + +void +RemoteVSTServer::hideGUI() +{ + if (!guiVisible) return; + + if (m_guiFifoFd >= 0) { + int fd = m_guiFifoFd; + m_guiFifoFd = -1; + close(m_guiFifoFd); + } + + ShowWindow(hWnd, SW_HIDE); + UpdateWindow(hWnd); + m_plugin->dispatcher(m_plugin, effEditClose, 0, 0, 0, 0); + guiVisible = false; +} + +void +RemoteVSTServer::startEdit() +{ + m_editLevel = EditStarted; +} + +void +RemoteVSTServer::endEdit() +{ + m_editLevel = EditFinished; +} + +void +RemoteVSTServer::monitorEdits() +{ + if (m_editLevel != EditNone) { + + if (m_editLevel == EditFinished) m_editLevel = EditNone; + + for (int i = 0; i < m_plugin->numParams; ++i) { + float actual = m_plugin->getParameter(m_plugin, i); + if (actual != m_values[i]) { + m_values[i] = actual; + notifyGUI(i, actual); + } + } + } + + while (m_paramChangeReadIndex != m_paramChangeWriteIndex) { + int index = m_paramChangeIndices[m_paramChangeReadIndex]; + float value = m_paramChangeValues[m_paramChangeReadIndex]; + if (value != m_values[index]) { + m_values[index] = value; + notifyGUI(index, value); + } + m_paramChangeReadIndex = + (m_paramChangeReadIndex + 1) % PARAMETER_CHANGE_COUNT; + } +} + +void +RemoteVSTServer::scheduleGUINotify(int index, float value) +{ + int ni = (m_paramChangeWriteIndex + 1) % PARAMETER_CHANGE_COUNT; + if (ni == m_paramChangeReadIndex) return; + + m_paramChangeIndices[m_paramChangeWriteIndex] = index; + m_paramChangeValues[m_paramChangeWriteIndex] = value; + + m_paramChangeWriteIndex = ni; +} + +void +RemoteVSTServer::notifyGUI(int index, float value) +{ + if (m_guiFifoFd >= 0) { + + if (debugLevel > 1) { + cerr << "RemoteVSTServer::notifyGUI(" << index << "," << value << "): about to lock" << endl; + } + + try { + writeOpcode(m_guiFifoFd, RemotePluginSetParameter); + int i = (int)index; + writeInt(m_guiFifoFd, i); + writeFloat(m_guiFifoFd, value); + + gettimeofday(&m_lastGuiComms, NULL); + ++m_guiEventsExpected; + + } catch (RemotePluginClosedException e) { + hideGUI(); + } + + if (debugLevel > 1) { + cerr << "wrote (" << index << "," << value << ") to gui (" << m_guiEventsExpected << " events expected now)" << endl; + } + } +} + +void +RemoteVSTServer::checkGUIExited() +{ + if (m_guiFifoFd >= 0) { + + struct pollfd pfd; + pfd.fd = m_guiFifoFd; + pfd.events = POLLHUP; + + if (poll(&pfd, 1, 0) != 0) { + m_guiFifoFd = -1; + } + + } +} + +void +RemoteVSTServer::terminateGUIProcess() +{ + if (m_guiFifoFd >= 0) { + writeOpcode(m_guiFifoFd, RemotePluginTerminate); + m_guiFifoFd = -1; + } +} + +#if VST_2_4_EXTENSIONS +VstIntPtr VSTCALLBACK +hostCallback(AEffect *plugin, VstInt32 opcode, VstInt32 index, + VstIntPtr value, void *ptr, float opt) +#else +long VSTCALLBACK +hostCallback(AEffect *plugin, long opcode, long index, + long value, void *ptr, float opt) +#endif +{ + static VstTimeInfo timeInfo; + int rv = 0; + + switch (opcode) { + + case audioMasterAutomate: + { + /*!!! Automation: + + When something changes here, we send it straight to the GUI + via our back channel. The GUI sends it back to the host via + configure; that comes to us; and we somehow need to know to + ignore it. Checking whether it's the same as the existing + param value won't cut it, as we might be changing that + continuously. (Shall we record that we're expecting the + configure call because we just sent to the GUI?) + + */ + + float v = plugin->getParameter(plugin, index); + + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterAutomate(" << index << "," << v << ")" << endl; + + remoteVSTServerInstance->scheduleGUINotify(index, v); + + break; + } + + case audioMasterVersion: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterVersion requested" << endl; + rv = 2300; + break; + + case audioMasterCurrentId: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterCurrentId requested" << endl; + rv = 0; + break; + + case audioMasterIdle: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterIdle requested" << endl; + plugin->dispatcher(plugin, effEditIdle, 0, 0, 0, 0); + break; + + case DEPRECATED_VST_SYMBOL(audioMasterPinConnected): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterPinConnected requested" << endl; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterWantMidi): + if (debugLevel > 1) { + cerr << "dssi-vst-server[2]: audioMasterWantMidi requested" << endl; + } + // happy to oblige + rv = 1; + break; + + case audioMasterGetTime: +// if (debugLevel > 1) +// cerr << "dssi-vst-server[2]: audioMasterGetTime requested" << endl; + timeInfo.samplePos = currentSamplePosition; + timeInfo.sampleRate = sampleRate; + timeInfo.flags = 0; // don't mark anything valid except default samplePos/Rate + rv = (long)&timeInfo; + break; + + case audioMasterProcessEvents: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterProcessEvents requested" << endl; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterSetTime): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterSetTime requested" << endl; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterTempoAt): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterTempoAt requested" << endl; + // can't support this, return 120bpm + rv = 120 * 10000; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterGetNumAutomatableParameters): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetNumAutomatableParameters requested" << endl; + rv = 5000; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterGetParameterQuantization): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetParameterQuantization requested" << endl; + rv = 1; + break; + + case audioMasterIOChanged: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterIOChanged requested" << endl; + cerr << "WARNING: Plugin inputs and/or outputs changed: NOT SUPPORTED" << endl; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterNeedIdle): + if (debugLevel > 1) { + cerr << "dssi-vst-server[2]: audioMasterNeedIdle requested" << endl; + } + // might be nice to handle this better + rv = 1; + break; + + case audioMasterSizeWindow: + if (debugLevel > 1) { + cerr << "dssi-vst-server[2]: audioMasterSizeWindow requested" << endl; + } + if (hWnd) { + SetWindowPos(hWnd, 0, 0, 0, + index + 6, + value + 25, + SWP_NOACTIVATE | SWP_NOMOVE | + SWP_NOOWNERZORDER | SWP_NOZORDER); + } + rv = 1; + break; + + case audioMasterGetSampleRate: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetSampleRate requested" << endl; + if (!sampleRate) { + cerr << "WARNING: Sample rate requested but not yet set" << endl; + } + plugin->dispatcher(plugin, effSetSampleRate, + 0, 0, NULL, (float)sampleRate); + break; + + case audioMasterGetBlockSize: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetBlockSize requested" << endl; + if (!bufferSize) { + cerr << "WARNING: Buffer size requested but not yet set" << endl; + } + plugin->dispatcher(plugin, effSetBlockSize, + 0, bufferSize, NULL, 0); + break; + + case audioMasterGetInputLatency: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetInputLatency requested" << endl; + break; + + case audioMasterGetOutputLatency: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetOutputLatency requested" << endl; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterGetPreviousPlug): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetPreviousPlug requested" << endl; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterGetNextPlug): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetNextPlug requested" << endl; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterWillReplaceOrAccumulate): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterWillReplaceOrAccumulate requested" << endl; + // 0 -> unsupported, 1 -> replace, 2 -> accumulate + rv = 1; + break; + + case audioMasterGetCurrentProcessLevel: + if (debugLevel > 1) { + cerr << "dssi-vst-server[2]: audioMasterGetCurrentProcessLevel requested (level is " << (inProcessThread ? 2 : 1) << ")" << endl; + } + // 0 -> unsupported, 1 -> gui, 2 -> process, 3 -> midi/timer, 4 -> offline + if (inProcessThread) rv = 2; + else rv = 1; + break; + + case audioMasterGetAutomationState: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetAutomationState requested" << endl; + rv = 4; // read/write + break; + + case audioMasterOfflineStart: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterOfflineStart requested" << endl; + break; + + case audioMasterOfflineRead: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterOfflineRead requested" << endl; + break; + + case audioMasterOfflineWrite: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterOfflineWrite requested" << endl; + break; + + case audioMasterOfflineGetCurrentPass: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterOfflineGetCurrentPass requested" << endl; + break; + + case audioMasterOfflineGetCurrentMetaPass: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterOfflineGetCurrentMetaPass requested" << endl; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterSetOutputSampleRate): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterSetOutputSampleRate requested" << endl; + break; + +/* Deprecated in VST 2.4 and also (accidentally?) renamed in the SDK header, + so we won't retain it here + case audioMasterGetSpeakerArrangement: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetSpeakerArrangement requested" << endl; + break; +*/ + case audioMasterGetVendorString: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetVendorString requested" << endl; + strcpy((char *)ptr, "Chris Cannam"); + break; + + case audioMasterGetProductString: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetProductString requested" << endl; + strcpy((char *)ptr, "DSSI VST Wrapper Plugin"); + break; + + case audioMasterGetVendorVersion: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetVendorVersion requested" << endl; + rv = long(RemotePluginVersion * 100); + break; + + case audioMasterVendorSpecific: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterVendorSpecific requested" << endl; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterSetIcon): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterSetIcon requested" << endl; + break; + + case audioMasterCanDo: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterCanDo(" << (char *)ptr + << ") requested" << endl; + if (!strcmp((char*)ptr, "sendVstEvents") || + !strcmp((char*)ptr, "sendVstMidiEvent") || + !strcmp((char*)ptr, "sendVstTimeInfo") || + !strcmp((char*)ptr, "sizeWindow") /* || + !strcmp((char*)ptr, "supplyIdle") */) { + rv = 1; + } + break; + + case audioMasterGetLanguage: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetLanguage requested" << endl; + rv = kVstLangEnglish; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterOpenWindow): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterOpenWindow requested" << endl; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterCloseWindow): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterCloseWindow requested" << endl; + break; + + case audioMasterGetDirectory: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetDirectory requested" << endl; + break; + + case audioMasterUpdateDisplay: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterUpdateDisplay requested" << endl; + break; + + case audioMasterBeginEdit: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterBeginEdit requested" << endl; + remoteVSTServerInstance->startEdit(); + break; + + case audioMasterEndEdit: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterEndEdit requested" << endl; + remoteVSTServerInstance->endEdit(); + break; + + case audioMasterOpenFileSelector: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterOpenFileSelector requested" << endl; + break; + + case audioMasterCloseFileSelector: + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterCloseFileSelector requested" << endl; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterEditFile): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterEditFile requested" << endl; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterGetChunkFile): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetChunkFile requested" << endl; + break; + + case DEPRECATED_VST_SYMBOL(audioMasterGetInputSpeakerArrangement): + if (debugLevel > 1) + cerr << "dssi-vst-server[2]: audioMasterGetInputSpeakerArrangement requested" << endl; + break; + + default: + if (debugLevel > 0) { + cerr << "dssi-vst-server[0]: unsupported audioMaster callback opcode " + << opcode << endl; + } + } + + return rv; +}; + +DWORD WINAPI +WatchdogThreadMain(LPVOID parameter) +{ + struct sched_param param; + param.sched_priority = 2; + int result = sched_setscheduler(0, SCHED_FIFO, ¶m); + if (result < 0) { + perror("Failed to set realtime priority for watchdog thread"); + } + + int count = 0; + + while (!exiting) { + if (!alive) { + ++count; + } + if (count == 20) { + cerr << "Remote VST plugin watchdog: terminating audio thread" << endl; + // bam + TerminateThread(audioThreadHandle, 0); + exiting = 1; + break; + } else { +// cerr << "Remote VST plugin watchdog: OK, count is " << count << endl; + } + sleep(1); + } + + cerr << "Remote VST plugin watchdog thread: returning" << endl; + + param.sched_priority = 0; + (void)sched_setscheduler(0, SCHED_OTHER, ¶m); + return 0; +} + +DWORD WINAPI +AudioThreadMain(LPVOID parameter) +{ + struct sched_param param; + param.sched_priority = 1; + HANDLE watchdogThreadHandle; + + int result = sched_setscheduler(0, SCHED_FIFO, ¶m); + + if (result < 0) { + perror("Failed to set realtime priority for audio thread"); + } else { + // Start a watchdog thread as well + DWORD watchdogThreadId = 0; + watchdogThreadHandle = + CreateThread(0, 0, WatchdogThreadMain, 0, 0, &watchdogThreadId); + if (!watchdogThreadHandle) { + cerr << "Failed to create watchdog thread -- not using RT priority for audio thread" << endl; + param.sched_priority = 0; + (void)sched_setscheduler(0, SCHED_OTHER, ¶m); + } + } + + while (!exiting) { + alive = true; + try { + // This can call sendMIDIData, setCurrentProgram, process + remoteVSTServerInstance->dispatchProcess(50); + } catch (std::string message) { + cerr << "ERROR: Remote VST server instance failed: " << message << endl; + exiting = true; + } catch (RemotePluginClosedException) { + cerr << "ERROR: Remote VST plugin communication failure" << endl; + exiting = true; + } + } + + cerr << "Remote VST plugin audio thread: returning" << endl; + + param.sched_priority = 0; + (void)sched_setscheduler(0, SCHED_OTHER, ¶m); + + if (watchdogThreadHandle) { + TerminateThread(watchdogThreadHandle, 0); + CloseHandle(watchdogThreadHandle); + } + return 0; +} + +LRESULT WINAPI +MainProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) +{ + switch (msg) { + case WM_DESTROY: + remoteVSTServerInstance->terminateGUIProcess(); + guiVisible = false; + return 0; + } + + return DefWindowProc(hWnd, msg, wParam, lParam); +} + +int WINAPI +WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, LPSTR cmdline, int cmdshow) +{ + char *libname = 0; + char *fileInfo = 0; + bool tryGui = false, haveGui = true; + + cout << "DSSI VST plugin server v" << RemotePluginVersion << endl; + cout << "Copyright (c) 2004-2006 Chris Cannam" << endl; + + char *home = getenv("HOME"); + + if (cmdline) { + int offset = 0; + if (cmdline[0] == '"' || cmdline[0] == '\'') offset = 1; + if (!strncmp(&cmdline[offset], "-g ", 3)) { + tryGui = true; + offset += 3; + } + for (int ci = offset; cmdline[ci]; ++ci) { + if (cmdline[ci] == ',') { + libname = strndup(cmdline + offset, ci - offset); + ++ci; + if (cmdline[ci]) { + fileInfo = strdup(cmdline + ci); + int l = strlen(fileInfo); + if (fileInfo[l-1] == '"' || + fileInfo[l-1] == '\'') { + fileInfo[l-1] = '\0'; + } + } + } + } + } + + if (!libname || !libname[0] || !fileInfo || !fileInfo[0]) { + cerr << "Usage: dssi-vst-server ," << endl; + cerr << "(Command line was: " << cmdline << ")" << endl; + exit(2); + } + + // LADSPA labels can't contain spaces so dssi-vst replaces spaces + // with asterisks. + for (int ci = 0; libname[ci]; ++ci) { + if (libname[ci] == '*') libname[ci] = ' '; + } + + cout << "Loading \"" << libname << "\"... "; + if (debugLevel > 0) cout << endl; + + HINSTANCE libHandle = 0; + + std::vector vstPath = Paths::getPath + ("VST_PATH", "/usr/local/lib/vst:/usr/lib/vst", "/vst"); + + for (size_t i = 0; i < vstPath.size(); ++i) { + + std::string vstDir = vstPath[i]; + std::string libPath; + + if (vstDir[vstDir.length()-1] == '/') { + libPath = vstDir + libname; + } else { + libPath = vstDir + "/" + libname; + } + + libHandle = LoadLibrary(libPath.c_str()); + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: " << (libHandle ? "" : "not ") + << "found in " << libPath << endl; + } + + if (!libHandle) { + if (home && home[0] != '\0') { + if (libPath.substr(0, strlen(home)) == home) { + libPath = libPath.substr(strlen(home) + 1); + } + libHandle = LoadLibrary(libPath.c_str()); + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: " << (libHandle ? "" : "not ") + << "found in " << libPath << endl; + } + } + } + + if (libHandle) break; + } + + if (!libHandle) { + libHandle = LoadLibrary(libname); + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: " << (libHandle ? "" : "not ") + << "found in DLL path" << endl; + } + } + + if (!libHandle) { + cerr << "dssi-vst-server: ERROR: Couldn't load VST DLL \"" << libname << "\"" << endl; + return 1; + } + + cout << "done" << endl; + + cout << "Testing VST compatibility... "; + if (debugLevel > 0) cout << endl; + +//!!! better debug level support + + AEffect *(__stdcall* getInstance)(audioMasterCallback); + + getInstance = (AEffect*(__stdcall*)(audioMasterCallback)) + GetProcAddress(libHandle, NEW_PLUGIN_ENTRY_POINT); + + if (!getInstance) { + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: VST 2.4 entrypoint \"" + << NEW_PLUGIN_ENTRY_POINT << "\" not found in DLL \"" + << libname << "\", looking for \"" + << OLD_PLUGIN_ENTRY_POINT << "\"" << endl; + } + + getInstance = (AEffect*(__stdcall*)(audioMasterCallback)) + GetProcAddress(libHandle, OLD_PLUGIN_ENTRY_POINT); + + if (!getInstance) { + cerr << "dssi-vst-server: ERROR: VST entrypoints \"" + << NEW_PLUGIN_ENTRY_POINT << "\" or \"" + << OLD_PLUGIN_ENTRY_POINT << "\" not found in DLL \"" + << libname << "\"" << endl; + return 1; + } else if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: VST entrypoint \"" + << OLD_PLUGIN_ENTRY_POINT << "\" found" << endl; + } + + } else if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: VST entrypoint \"" + << NEW_PLUGIN_ENTRY_POINT << "\" found" << endl; + } + + AEffect *plugin = getInstance(hostCallback); + + if (!plugin) { + cerr << "dssi-vst-server: ERROR: Failed to instantiate plugin in VST DLL \"" + << libname << "\"" << endl; + return 1; + } else if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: plugin instantiated" << endl; + } + + if (plugin->magic != kEffectMagic) { + cerr << "dssi-vst-server: ERROR: Not a VST plugin in DLL \"" << libname << "\"" << endl; + return 1; + } else if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: plugin is a VST" << endl; + } + + if (!(plugin->flags & effFlagsHasEditor)) { + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: Plugin has no GUI" << endl; + } + haveGui = false; + } else if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: plugin has a GUI" << endl; + } + + if (!plugin->flags & effFlagsCanReplacing) { + cerr << "dssi-vst-server: ERROR: Plugin does not support processReplacing (required)" + << endl; + return 1; + } else if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: plugin supports processReplacing" << endl; + } + + try { + remoteVSTServerInstance = + new RemoteVSTServer(fileInfo, plugin, libname); + } catch (std::string message) { + cerr << "ERROR: Remote VST startup failed: " << message << endl; + return 1; + } catch (RemotePluginClosedException) { + cerr << "ERROR: Remote VST plugin communication failure" << endl; + return 1; + } + + cout << "Initialising Windows subsystem... "; + if (debugLevel > 0) cout << endl; + + WNDCLASSEX wclass; + wclass.cbSize = sizeof(WNDCLASSEX); + wclass.style = 0; + wclass.lpfnWndProc = MainProc; + wclass.cbClsExtra = 0; + wclass.cbWndExtra = 0; + wclass.hInstance = hInst; + wclass.hIcon = LoadIcon(hInst, APPLICATION_CLASS_NAME); + wclass.hCursor = LoadCursor(0, IDI_APPLICATION); +// wclass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH); + wclass.lpszMenuName = "MENU_DSSI_VST"; + wclass.lpszClassName = APPLICATION_CLASS_NAME; + wclass.hIconSm = 0; + + if (!RegisterClassEx(&wclass)) { + cerr << "dssi-vst-server: ERROR: Failed to register Windows application class!\n" << endl; + return 1; + } else if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: registered Windows application class \"" << APPLICATION_CLASS_NAME << "\"" << endl; + } + + hWnd = CreateWindow + (APPLICATION_CLASS_NAME, remoteVSTServerInstance->getName().c_str(), + WS_OVERLAPPEDWINDOW & ~WS_THICKFRAME & ~WS_MAXIMIZEBOX, + CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, + 0, 0, hInst, 0); + if (!hWnd) { + cerr << "dssi-vst-server: ERROR: Failed to create window!\n" << endl; + return 1; + } else if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: created main window" << endl; + } + + if (!haveGui) { + cerr << "Should be showing message here" << endl; + } else { + + if (tryGui) { + + plugin->dispatcher(plugin, effEditOpen, 0, 0, hWnd, 0); + Rect *rect = 0; + plugin->dispatcher(plugin, effEditGetRect, 0, 0, &rect, 0); + if (!rect) { + cerr << "dssi-vst-server: ERROR: Plugin failed to report window size\n" << endl; + return 1; + } + + // Seems we need to provide space in here for the titlebar + // and frame, even though we don't know how big they'll + // be! How crap. + SetWindowPos(hWnd, 0, 0, 0, + rect->right - rect->left + 6, + rect->bottom - rect->top + 25, + SWP_NOACTIVATE | SWP_NOMOVE | + SWP_NOOWNERZORDER | SWP_NOZORDER); + + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: sized window" << endl; + } + + ShowWindow(hWnd, SW_SHOWNORMAL); + UpdateWindow(hWnd); + + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: showed window" << endl; + } + + guiVisible = true; + } + } + + cout << "done" << endl; + + DWORD threadId = 0; + audioThreadHandle = CreateThread(0, 0, AudioThreadMain, 0, 0, &threadId); + if (!audioThreadHandle) { + cerr << "Failed to create audio thread!" << endl; + delete remoteVSTServerInstance; + FreeLibrary(libHandle); + return 1; + } else if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: created audio thread" << endl; + } + + ready = true; + + MSG msg; + exiting = false; + while (!exiting) { + + while (!exiting && PeekMessage(&msg, 0, 0, 0, PM_REMOVE)) { + DispatchMessage(&msg); + } + + if (tryGui && haveGui && !guiVisible) { + // Running in GUI-always-on mode and GUI has exited: follow it + exiting = true; + } + + if (exiting) break; + + try { + if (guiVisible) { + remoteVSTServerInstance->dispatchControl(10); + } else { + remoteVSTServerInstance->dispatchControl(500); + } + } catch (RemotePluginClosedException) { + cerr << "ERROR: Remote VST plugin communication failure" << endl; + exiting = true; + break; + } + + remoteVSTServerInstance->checkGUIExited(); + remoteVSTServerInstance->monitorEdits(); + } + + // wait for audio thread to catch up + sleep(1); + + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: cleaning up" << endl; + } + + CloseHandle(audioThreadHandle); + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: closed audio thread" << endl; + } + + delete remoteVSTServerInstance; + remoteVSTServerInstance = 0; + + FreeLibrary(libHandle); + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: freed dll" << endl; + } + + if (debugLevel > 0) { + cerr << "dssi-vst-server[1]: exiting" << endl; + } + + return 0; +} + diff --git a/dssi-vst.cpp b/dssi-vst.cpp new file mode 100644 index 0000000..e3f2f22 --- /dev/null +++ b/dssi-vst.cpp @@ -0,0 +1,703 @@ + +/* -*- c-basic-offset: 4 -*- */ + +/* + dssi-vst: a DSSI plugin wrapper for VST effects and instruments + Copyright 2004-2006 Chris Cannam +*/ + +#include "remotevstclient.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +// Should be divisible by three +#define MIDI_BUFFER_SIZE 1023 + +class DSSIVSTPluginInstance +{ +public: + static void freeFields(DSSI_Descriptor &descriptor); + + DSSIVSTPluginInstance(std::string dllName, + unsigned long sampleRate); + virtual ~DSSIVSTPluginInstance(); + + bool isOK() { return m_ok; } + + // LADSPA methods: + + void activate(); + void deactivate(); + void connectPort(unsigned long port, LADSPA_Data *location); + void run(unsigned long sampleCount); + + // DSSI methods: + + const DSSI_Program_Descriptor *getProgram(unsigned long index); + void selectProgram(unsigned long bank, unsigned long program); + void runSynth(unsigned long sampleCount, + snd_seq_event_t *events, unsigned long eventCount); + std::string configure(std::string key, std::string value); + +protected: + static RemotePluginClient *load(std::string name); + + unsigned long m_sampleRate; + unsigned long m_lastSampleCount; + + LADSPA_Data **m_controlPorts; + LADSPA_Data *m_controlPortsSaved; + unsigned long m_controlPortCount; + + LADSPA_Data **m_audioIns; + unsigned long m_audioInCount; + + LADSPA_Data **m_audioOuts; + unsigned long m_audioOutCount; + + LADSPA_Data *m_latencyOut; + + DSSI_Program_Descriptor **m_programs; + unsigned long m_programCount; + + unsigned char m_decodeBuffer[MIDI_BUFFER_SIZE]; + int m_frameOffsetsBuffer[MIDI_BUFFER_SIZE / 3]; + snd_midi_event_t *m_alsaDecoder; + + bool m_pendingProgram; + + RemotePluginClient *m_plugin; + bool m_ok; +}; + +class DSSIVSTPlugin +{ +public: + DSSIVSTPlugin(); + virtual ~DSSIVSTPlugin(); + + DSSI_Descriptor *queryDescriptor(unsigned long index); + + // LADSPA methods: + + static LADSPA_Handle instantiate(const LADSPA_Descriptor *descriptor, + unsigned long sampleRate); + + static void connect_port(LADSPA_Handle instance, + unsigned long port, + LADSPA_Data *location); + + static void activate(LADSPA_Handle instance); + + static void run(LADSPA_Handle instance, + unsigned long sampleCount); + + static void deactivate(LADSPA_Handle instance); + + static void cleanup(LADSPA_Handle instance); + + // DSSI methods: + + static const DSSI_Program_Descriptor *get_program(LADSPA_Handle instance, + unsigned long index); + + static void select_program(LADSPA_Handle instance, + unsigned long bank, unsigned long program); + + static void run_synth(LADSPA_Handle instance, unsigned long sampleCount, + snd_seq_event_t *events, unsigned long eventCount); + + static char *configure(LADSPA_Handle instance, const char *key, + const char *value); + +private: + typedef std::pair PluginPair; + typedef std::vector PluginList; + PluginList m_descriptors; +}; + + +#define NO_CONTROL_DATA -10000000000000.0 + +DSSIVSTPluginInstance::DSSIVSTPluginInstance(std::string dllName, + unsigned long sampleRate) : + m_sampleRate(sampleRate), + m_lastSampleCount(0), + m_controlPorts(0), + m_controlPortsSaved(0), + m_controlPortCount(0), + m_audioIns(0), + m_audioInCount(0), + m_audioOuts(0), + m_audioOutCount(0), + m_programs(0), + m_programCount(0), + m_pendingProgram(false), + m_plugin(0), + m_ok(false) +{ + std::cerr << "DSSIVSTPluginInstance::DSSIVSTPluginInstance(" << dllName << ")" << std::endl; + + try { + m_plugin = new RemoteVSTClient(dllName); + + m_controlPortCount = m_plugin->getParameterCount(); + m_controlPorts = new LADSPA_Data*[m_controlPortCount]; + m_controlPortsSaved = new LADSPA_Data[m_controlPortCount]; + + for (unsigned long i = 0; i < m_controlPortCount; ++i) { + m_controlPortsSaved[i] = NO_CONTROL_DATA; + } + + m_audioInCount = m_plugin->getInputCount(); + m_audioIns = new LADSPA_Data*[m_audioInCount]; + + m_audioOutCount = m_plugin->getOutputCount(); + m_audioOuts = new LADSPA_Data*[m_audioOutCount]; + + m_programCount = m_plugin->getProgramCount(); + m_programs = new DSSI_Program_Descriptor*[m_programCount]; + for (unsigned long i = 0; i < m_programCount; ++i) { + m_programs[i] = new DSSI_Program_Descriptor; + m_programs[i]->Bank = 0; + m_programs[i]->Program = i; + m_programs[i]->Name = strdup(m_plugin->getProgramName(i).c_str()); + } + + snd_midi_event_new(MIDI_BUFFER_SIZE, &m_alsaDecoder); + if (!m_alsaDecoder) { + std::cerr << "DSSIVSTPluginInstance::DSSIVSTPluginInstance(" + << dllName << "): failed to initialize ALSA MIDI decoder" + << std::endl; + } else { + snd_midi_event_no_status(m_alsaDecoder, 1); + } + + std::cerr << "DSSIVSTPluginInstance(" << this << "): setting OK true" << std::endl; + + m_ok = true; + + } catch (RemotePluginClosedException) { + std::cerr << "DSSIVSTPluginInstance::DSSIVSTPluginInstance(" + << dllName << "): startup failed" << std::endl; + + m_ok = false; + delete m_plugin; m_plugin = 0; + delete m_controlPorts; m_controlPorts = 0; + delete m_controlPortsSaved; m_controlPortsSaved = 0; + delete m_audioIns; m_audioIns = 0; + delete m_audioOuts; m_audioOuts = 0; + } + + std::cerr << "DSSIVSTPluginInstance::DSSIVSTPluginInstance(" << dllName << ") construction complete" << std::endl; +} + +DSSIVSTPluginInstance::~DSSIVSTPluginInstance() +{ + std::cerr << "DSSIVSTPluginInstance::~DSSIVSTPluginInstance" << std::endl; + + if (m_ok) { + try { + std::cerr << "DSSIVSTPluginInstance::~DSSIVSTPluginInstance: asking plugin to terminate" << std::endl; + m_plugin->terminate(); + } catch (RemotePluginClosedException) { } + } + + delete m_plugin; + + if (m_alsaDecoder) { + snd_midi_event_free(m_alsaDecoder); + } + + delete m_controlPorts; + delete m_controlPortsSaved; + delete m_audioIns; + delete m_audioOuts; + + for (unsigned long i = 0; i < m_programCount; ++i) { + free((void *)m_programs[i]->Name); + delete m_programs[i]; + } + delete m_programs; +} + +void +DSSIVSTPluginInstance::activate() +{ + if (m_ok) { + try { + m_plugin->setSampleRate(m_sampleRate); + } catch (RemotePluginClosedException) { + m_ok = false; + } + } +} + +void +DSSIVSTPluginInstance::deactivate() +{ + if (m_ok) { + try { + m_plugin->reset(); + } catch (RemotePluginClosedException) { + m_ok = false; + } + } +} + +void +DSSIVSTPluginInstance::connectPort(unsigned long port, LADSPA_Data *location) +{ +// std::cerr << "connectPort(" << port << "," << location << ")" << std::endl; + + if (!m_ok) return; + + if (port < m_controlPortCount) { +// std::cerr << "(control port)" << std::endl; + m_controlPorts[port] = location; + return; + } + port -= m_controlPortCount; + + if (port < m_audioInCount) { +// std::cerr << "(audio in port)" << std::endl; + m_audioIns[port] = location; + return; + } + port -= m_audioInCount; + + if (port < m_audioOutCount) { +// std::cerr << "(audio out port)" << std::endl; + m_audioOuts[port] = location; + return; + } + port -= m_audioOutCount; + + if (port < 1) { // latency +// std::cerr << "(latency output port)" << std::endl; + m_latencyOut = location; + if (m_latencyOut) *m_latencyOut = 0; + return; + } +} + +const DSSI_Program_Descriptor * +DSSIVSTPluginInstance::getProgram(unsigned long index) +{ + if (index >= m_programCount) return 0; + m_programs[index]->Name = strdup(m_programs[index]->Name); // host frees + return m_programs[index]; +} + +void +DSSIVSTPluginInstance::selectProgram(unsigned long bank, unsigned long program) +{ + if (bank != 0 || program >= m_programCount) return; + + try { + m_plugin->setCurrentProgram(program); + m_plugin->getParameters(0, m_controlPortCount - 1, m_controlPortsSaved); + + for (unsigned long i = 0; i < m_controlPortCount; ++i) { + if (!m_controlPorts[i]) continue; + *m_controlPorts[i] = m_controlPortsSaved[i]; + } + + } catch (RemotePluginClosedException) { + m_ok = false; + return; + } +} + +void +DSSIVSTPluginInstance::run(unsigned long sampleCount) +{ + if (!m_ok) return; + + try { + if (sampleCount != m_lastSampleCount) { + m_plugin->setBufferSize(sampleCount); + m_lastSampleCount = sampleCount; + if (m_latencyOut) *m_latencyOut = sampleCount; + } + + int modifiedCount = 0; + + for (unsigned long i = 0; i < m_controlPortCount; ++i) { + + if (!m_controlPorts[i]) continue; + + if (m_controlPortsSaved[i] != *m_controlPorts[i]) { +// std::cout << "Sending new value " << *m_controlPorts[i] +// << " for control port " << i << std::endl; + m_plugin->setParameter(i, *m_controlPorts[i]); + m_controlPortsSaved[i] = *m_controlPorts[i]; + if (++modifiedCount > 10) break; + } + } + + m_plugin->process(m_audioIns, m_audioOuts); + + } catch (RemotePluginClosedException) { + m_ok = false; + } +} + +void +DSSIVSTPluginInstance::runSynth(unsigned long sampleCount, + snd_seq_event_t *events, unsigned long eventCount) +{ + if (!m_ok) return; + + try { + if (m_alsaDecoder) { + + unsigned long index = 0; + unsigned long i; + + for (i = 0; i < eventCount; ++i) { + + snd_seq_event_t *ev = &events[i]; + + if (index >= MIDI_BUFFER_SIZE - 4) break; + +// std::cerr << "MIDI event at frame " << ev->time.tick +// << ", channel " << int(ev->data.note.channel) << std::endl; + + m_frameOffsetsBuffer[i] = ev->time.tick; + ev->time.tick = 0; + + long count = snd_midi_event_decode(m_alsaDecoder, + m_decodeBuffer + index, + MIDI_BUFFER_SIZE - index, + ev); + if (count < 0) { + std::cerr << "WARNING: MIDI decoder error " << count + << " for event type " << ev->type << std::endl; + } else if (count == 0 || count > 3) { + std::cerr << "WARNING: MIDI event of type " << ev->type + << " decoded to " << count << " bytes, discarding" << std::endl; + } else { + index += count; + while (count++ < 3) { + m_decodeBuffer[index++] = '\0'; + } + } + } + + if (index > 0) { + m_plugin->sendMIDIData(m_decodeBuffer, m_frameOffsetsBuffer, i); + } + } + } catch (RemotePluginClosedException) { + m_ok = false; + } + + run(sampleCount); +} + +std::string +DSSIVSTPluginInstance::configure(std::string key, std::string value) +{ + std::cerr << "DSSIVSTPluginInstance::configure(" << key << "," << value <<")" << std::endl; + + try { + if (key == "guiVisible") { + if (value.length() > 0) { + std::cerr << "DSSIVSTPluginInstance::configure: show gui: value " << value << std::endl; + m_plugin->showGUI(value); + } else { + std::cerr << "DSSIVSTPluginInstance::configure: hide gui" << std::endl; + m_plugin->hideGUI(); + } + } + } catch (RemotePluginClosedException) { + m_ok = false; + } + + return ""; +} + +void +DSSIVSTPluginInstance::freeFields(DSSI_Descriptor &descriptor) +{ + LADSPA_Descriptor &ldesc = (LADSPA_Descriptor &)*descriptor.LADSPA_Plugin; + + if (ldesc.Name) free((char *)ldesc.Name); + if (ldesc.Maker) free((char *)ldesc.Maker); + if (ldesc.Copyright) free((char *)ldesc.Copyright); + + if (ldesc.PortDescriptors) { + delete[] ldesc.PortDescriptors; + } + + if (ldesc.PortNames) { + for (unsigned long i = 0; i < ldesc.PortCount; ++i) { + free((char *)ldesc.PortNames[i]); + } + delete[] ldesc.PortNames; + } + + if (ldesc.PortRangeHints) { + delete[] ldesc.PortRangeHints; + } +} + + +DSSIVSTPlugin::DSSIVSTPlugin() +{ + std::vector plugins; + + try { + RemoteVSTClient::queryPlugins(plugins); + } catch (std::string error) { + std::cerr << "DSSIVSTPlugin: Error on plugin query: " << error << std::endl; + return; + } + + for (unsigned int p = 0; p < plugins.size(); ++p) { + + DSSI_Descriptor *descriptor = new DSSI_Descriptor; + LADSPA_Descriptor *ldesc = new LADSPA_Descriptor; + descriptor->LADSPA_Plugin = ldesc; + + RemoteVSTClient::PluginRecord &rec = plugins[p]; + + // LADSPA labels mustn't contain spaces. We replace them with + // asterisks here and restore them when used to indicate DLL name + // again. + char *label = strdup(rec.dllName.c_str()); + for (int i = 0; label[i]; ++i) { + if (label[i] == ' ') label[i] = '*'; + } + + ldesc->UniqueID = 6666 + p; + ldesc->Label = label; + ldesc->Name = strdup(std::string(rec.pluginName + " VST").c_str()); + ldesc->Maker = strdup(rec.vendorName.c_str()); + ldesc->Copyright = strdup(ldesc->Maker); + +// std::cerr << "Plugin name: " << ldesc->Name << std::endl; + + int parameters = rec.parameters; + int inputs = rec.inputs; + int outputs = rec.outputs; + int portCount = parameters + inputs + outputs + 1; // 1 for latency output + + LADSPA_PortDescriptor *ports = new LADSPA_PortDescriptor[portCount]; + char **names = new char *[portCount]; + LADSPA_PortRangeHint *hints = new LADSPA_PortRangeHint[portCount]; + + for (int i = 0; i < parameters; ++i) { + ports[i] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL; + names[i] = strdup(rec.parameterNames[i].c_str()); + hints[i].LowerBound = 0.0f; + hints[i].UpperBound = 1.0f; + hints[i].HintDescriptor = + LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE; + float deflt = rec.parameterDefaults[i]; + if (deflt < 0.0001) { + hints[i].HintDescriptor |= LADSPA_HINT_DEFAULT_MINIMUM; + } else if (deflt > 0.999) { + hints[i].HintDescriptor |= LADSPA_HINT_DEFAULT_MAXIMUM; + } else if (deflt < 0.35) { + hints[i].HintDescriptor |= LADSPA_HINT_DEFAULT_LOW; + } else if (deflt > 0.65) { + hints[i].HintDescriptor |= LADSPA_HINT_DEFAULT_HIGH; + } else { + hints[i].HintDescriptor |= LADSPA_HINT_DEFAULT_MIDDLE; + } + } + + for (int i = 0; i < inputs; ++i) { + int j = i + parameters; + ports[j] = LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO; + char buf[20]; + snprintf(buf, 19, "in%d", i + 1); + names[j] = strdup(buf); + hints[j].HintDescriptor = 0; + } + + for (int i = 0; i < outputs; ++i) { + int j = i + inputs + parameters; + ports[j] = LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO; + char buf[20]; + snprintf(buf, 19, "out%d", i + 1); + names[j] = strdup(buf); + hints[j].HintDescriptor = 0; + } + + ports[portCount-1] = LADSPA_PORT_OUTPUT | LADSPA_PORT_CONTROL; + names[portCount-1] = strdup("_latency"); + hints[portCount-1].HintDescriptor = 0; + + ldesc->PortCount = portCount; + ldesc->PortDescriptors = ports; + ldesc->PortNames = names; + ldesc->PortRangeHints = hints; + ldesc->ImplementationData = 0; + + ldesc->instantiate = DSSIVSTPlugin::instantiate; + ldesc->connect_port = DSSIVSTPlugin::connect_port; + ldesc->activate = DSSIVSTPlugin::activate; + ldesc->run = DSSIVSTPlugin::run; + ldesc->run_adding = 0; + ldesc->set_run_adding_gain = 0; + ldesc->deactivate = DSSIVSTPlugin::deactivate; + ldesc->cleanup = DSSIVSTPlugin::cleanup; + + descriptor->DSSI_API_Version = 1; + descriptor->configure = DSSIVSTPlugin::configure; + descriptor->get_program = DSSIVSTPlugin::get_program; + descriptor->select_program = DSSIVSTPlugin::select_program; + descriptor->get_midi_controller_for_port = 0; + + if (rec.isSynth) { + descriptor->run_synth = DSSIVSTPlugin::run_synth; + } else { + descriptor->run_synth = 0; + } + + descriptor->run_synth_adding = 0; + descriptor->run_multiple_synths = 0; + descriptor->run_multiple_synths_adding = 0; + + m_descriptors.push_back(PluginPair(rec.dllName, descriptor)); + } +} + +DSSIVSTPlugin::~DSSIVSTPlugin() +{ + for (PluginList::iterator i = m_descriptors.begin(); i != m_descriptors.end(); ++i) { + DSSIVSTPluginInstance::freeFields(*i->second); + delete i->second->LADSPA_Plugin; + delete i->second; + } +} + + +DSSI_Descriptor * +DSSIVSTPlugin::queryDescriptor(unsigned long index) +{ + if (index < m_descriptors.size()) { +// std::cerr << "DSSIVSTPlugin::queryDescriptor: index is " << index +// << ", returning " << m_descriptors[index].second->LADSPA_Plugin->Name +// << std::endl; + return m_descriptors[index].second; + } else { + return 0; + } +} + +LADSPA_Handle +DSSIVSTPlugin::instantiate(const LADSPA_Descriptor *descriptor, + unsigned long sampleRate) +{ + std::cerr << "DSSIVSTPlugin::instantiate(" << descriptor->Label << ")" << std::endl; + + try { + return (LADSPA_Handle) + (new DSSIVSTPluginInstance(descriptor->Label, sampleRate)); + } catch (std::string e) { + perror(e.c_str()); + } catch (RemotePluginClosedException) { + std::cerr << "Remote plugin closed." << std::endl; + } + return 0; +} + +void +DSSIVSTPlugin::connect_port(LADSPA_Handle instance, + unsigned long port, + LADSPA_Data *location) +{ + ((DSSIVSTPluginInstance *)instance)->connectPort(port, location); +} + +void +DSSIVSTPlugin::activate(LADSPA_Handle instance) +{ + ((DSSIVSTPluginInstance *)instance)->activate(); +} + +void +DSSIVSTPlugin::run(LADSPA_Handle instance, unsigned long sampleCount) +{ + ((DSSIVSTPluginInstance *)instance)->run(sampleCount); +} + +void +DSSIVSTPlugin::deactivate(LADSPA_Handle instance) +{ + ((DSSIVSTPluginInstance *)instance)->deactivate(); +} + +void +DSSIVSTPlugin::cleanup(LADSPA_Handle instance) +{ + std::cerr << "DSSIVSTPlugin::cleanup" << std::endl; + delete ((DSSIVSTPluginInstance *)instance); +} + +const DSSI_Program_Descriptor * +DSSIVSTPlugin::get_program(LADSPA_Handle instance, unsigned long index) +{ + return ((DSSIVSTPluginInstance *)instance)->getProgram(index); +} + +void +DSSIVSTPlugin::select_program(LADSPA_Handle instance, unsigned long bank, + unsigned long program) +{ + ((DSSIVSTPluginInstance *)instance)->selectProgram(bank, program); +} + +void +DSSIVSTPlugin::run_synth(LADSPA_Handle instance, unsigned long sampleCount, + snd_seq_event_t *events, unsigned long eventCount) +{ + ((DSSIVSTPluginInstance *)instance)->runSynth(sampleCount, events, + eventCount); +} + +char * +DSSIVSTPlugin::configure(LADSPA_Handle instance, const char *key, + const char *value) +{ + std::cerr << "DSSIVSTPlugin::configure(" << key << "," << value << ")" << std::endl; + + std::string rv = ((DSSIVSTPluginInstance *)instance)->configure(key, value); + if (rv == "") { + return NULL; + } else { + return strdup(rv.c_str()); + } +} + + +static DSSIVSTPlugin *_plugin = 0; + +const LADSPA_Descriptor * +ladspa_descriptor(unsigned long index) +{ + return 0; +} + +const DSSI_Descriptor * +dssi_descriptor(unsigned long index) +{ + if (!_plugin) { + _plugin = new DSSIVSTPlugin; + } + return _plugin->queryDescriptor(index); +} + diff --git a/dssi-vst_gui.cpp b/dssi-vst_gui.cpp new file mode 100644 index 0000000..52b2087 --- /dev/null +++ b/dssi-vst_gui.cpp @@ -0,0 +1,301 @@ +// -*- c-basic-offset: 4 -*- + +/* + dssi-vst: a DSSI plugin wrapper for VST effects and instruments + Copyright 2004-2006 Chris Cannam +*/ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include "rdwrops.h" + +static int debugLevel = 3; +static bool ready = false; +static bool exiting = false; + +static lo_server oscserver = 0; + +static char *hosturl = 0; +static lo_address hostaddr = 0; +static char *hosthostname = 0; +static char *hostport = 0; +static char *hostpath = 0; + +static char *fifoFile = 0; +static int fifoFd = -1; + +using std::cout; +using std::cerr; +using std::endl; + +#include "remoteplugin.h" // for RemotePluginVersion + +void +osc_error(int num, const char *msg, const char *path) +{ + cerr << "Error: liblo server error " << num + << " in path \"" << (path ? path : "(null)") + << "\": " << msg << endl; +} + +int +debug_handler(const char *path, const char *types, lo_arg **argv, + int argc, void *data, void *user_data) +{ + int i; + + cerr << "Warning: unhandled OSC message in GUI:" << endl; + + for (i = 0; i < argc; ++i) { + cerr << "arg " << i << ": type '" << types[i] << "': "; + lo_arg_pp((lo_type)types[i], argv[i]); + cerr << endl; + } + + cerr << "(path is <" << path << ">)" << endl; + return 1; +} + +int +program_handler(const char *path, const char *types, lo_arg **argv, + int argc, void *data, void *user_data) +{ + cerr << "dssi-vst_gui: program_handler" << endl; + return 0; +} + +int +configure_handler(const char *path, const char *types, lo_arg **argv, + int argc, void *data, void *user_data) +{ + cerr << "dssi-vst_gui: configure_handler, returning 0" << endl; + return 0; +} + +int +show_handler(const char *path, const char *types, lo_arg **argv, + int argc, void *data, void *user_data) +{ + cerr << "dssi-vst_gui: show_handler" << endl; + + lo_send(hostaddr, + (std::string(hostpath) + "/configure").c_str(), + "ss", + "guiVisible", + fifoFile); + + return 0; +} + +int +hide_handler(const char *path, const char *types, lo_arg **argv, + int argc, void *data, void *user_data) +{ + cerr << "dssi-vst_gui: hide_handler" << endl; + + lo_send(hostaddr, + (std::string(hostpath) + "/configure").c_str(), + "ss", + "guiVisible", + ""); + + return 0; +} + +int +quit_handler(const char *path, const char *types, lo_arg **argv, + int argc, void *data, void *user_data) +{ + cerr << "quit_handler" << endl; + exiting = true; + return 0; +} + +int +control_handler(const char *path, const char *types, lo_arg **argv, + int argc, void *data, void *user_data) +{ + static int count = 0; + cerr << "dssi-vst_gui: control_handler " << count++ << endl; + return 0; +} + +void +readFromPlugin() +{ + cerr << "dssi-vst_gui: something to read from plugin" << endl; + + try { + RemotePluginOpcode opcode = RemotePluginNoOpcode; + tryRead(fifoFd, &opcode, sizeof(RemotePluginOpcode)); + + switch (opcode) { + + case RemotePluginIsReady: + ready = true; + break; + + case RemotePluginSetParameter: + { + int port = readInt(fifoFd); + float value = readFloat(fifoFd); + + cerr << "dssi-vst_gui: sending (" << port << "," << value << ") to host" << endl; + + lo_send(hostaddr, + (std::string(hostpath) + "/control").c_str(), + "if", port, value); + break; + } + + case RemotePluginTerminate: + cerr << "dssi-vst_gui: asked to terminate" << endl; + lo_send(hostaddr, + (std::string(hostpath) + "/exiting").c_str(), + ""); + exiting = true; + break; + + default: + std::cerr << "WARNING: dssi-vst_gui: unexpected opcode " + << opcode << std::endl; + break; + } + } catch (...) { } +} + +int +main(int argc, char **argv) +{ + cout << "DSSI VST plugin GUI controller v" << RemotePluginVersion << endl; + cout << "Copyright (c) 2004-2006 Chris Cannam" << endl; + + char *pluginlibname = 0; + char *label = 0; + char *friendlyname = 0; + + if (argc != 5) { + cerr << "Usage: dssi-vst_gui