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/*************************************************************************** |
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* * |
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* Copyright (C) 2008 - 2013 Andreas Persson * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, * |
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* MA 02110-1301 USA * |
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***************************************************************************/ |
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|
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#include <cstdio> |
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#include <cstdlib> |
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#include <cstring> |
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|
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#ifdef WIN32 |
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#include <tchar.h> |
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#else |
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#include <cerrno> |
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#include <signal.h> |
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#include <sys/wait.h> |
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#include <unistd.h> |
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#include <dirent.h> |
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#include <sys/stat.h> |
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#endif |
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|
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#include "PluginVst.h" |
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#include "../../drivers/midi/MidiInstrumentMapper.h" |
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|
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#ifndef CHANNELS |
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#define CHANNELS 32 |
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#endif |
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|
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// the sampler can actually hold up a very huge amount of programs |
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// (2^32 [maps] * 2^16 [banks MSB + LSB] * 2^8 [programs per bank] = 2^56 [total programs] ) |
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// however I am not sure if we might crash some VST host with a number |
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// here that is too huge, however this should be enough in most cases ... |
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#define MAX_VST_PROGRAMS (128*128) |
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|
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using namespace LinuxSampler; |
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|
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namespace { |
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|
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#if defined(WIN32) && CONFIG_DEBUG_LEVEL >= 2 |
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// on windows, send debug logging to a file instead of a non-existent |
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// console |
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#include <cstdarg> |
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#include "../../common/Mutex.h" |
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LinuxSampler::Mutex logmutex; |
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|
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void log(const char* fmt, ...) { |
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LockGuard lock(logmutex); |
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FILE* f = fopen((String(getenv("TEMP")) + "\\linuxsamplervst.log").c_str(), "a"); |
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va_list ap; |
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va_start(ap, fmt); |
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vfprintf(f, fmt, ap); |
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va_end(ap); |
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fclose(f); |
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} |
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#undef dmsg |
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#define dmsg(debuglevel,x) log x; |
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#endif |
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|
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|
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// *************** LinuxSamplerEditor *************** |
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// * |
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|
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LinuxSamplerEditor::LinuxSamplerEditor(AudioEffect* effect) : |
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AEffEditor(effect) { |
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dmsg(2, ("-->LinuxSamplerEditor constructor\n")); |
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#ifdef WIN32 |
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ProcessHandle = INVALID_HANDLE_VALUE; |
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#else |
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pid = 0; |
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#endif |
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} |
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|
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LinuxSamplerEditor::~LinuxSamplerEditor() { |
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close(); |
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} |
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|
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String LinuxSamplerEditor::FindFantasia() { |
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String fantasia; |
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#ifdef WIN32 |
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// assume Fantasia is in the same directory or one directory above |
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// the liblinuxsampler dll |
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String lspath = LinuxSampler::Sampler::GetInstallDir(); |
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if (!lspath.empty()) { |
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lspath += "\\"; |
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WIN32_FIND_DATA fd; |
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HANDLE hFind = |
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FindFirstFile((lspath + "Fantasia*.jar").c_str(), &fd); |
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if (hFind == INVALID_HANDLE_VALUE) { |
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lspath += "..\\"; |
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hFind = FindFirstFile((lspath + "Fantasia*.jar").c_str(), &fd); |
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} |
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if (hFind != INVALID_HANDLE_VALUE) { |
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fantasia = fd.cFileName; |
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FindClose(hFind); |
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return lspath + fantasia; |
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} |
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} |
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#elif defined(__APPLE__) |
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// look for the java application wrapper |
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const char* cmd = |
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"/Applications/LinuxSampler/Fantasia.app" |
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"/Contents/MacOS/JavaApplicationStub"; |
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fantasia = String(getenv("HOME")) + cmd; |
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struct stat buf; |
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if (stat(fantasia.c_str(), &buf) != 0) { |
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fantasia = stat(cmd, &buf) == 0 ? cmd : ""; |
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} |
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#else |
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// search in <datadir>/java (default: /usr/local/share/java) |
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String path(DATADIR); |
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path += *(path.end() - 1) == '/' ? "java" : "/java"; |
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DIR* dir = opendir(path.c_str()); |
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if (dir) { |
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while (dirent* d = readdir(dir)) { |
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const char* name = d->d_name; |
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if (strncmp("Fantasia", name, 8) == 0 && |
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strcmp(name + strlen(name) - 4, ".jar") == 0) { |
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fantasia = path + "/" + name; |
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} |
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} |
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closedir(dir); |
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} |
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#endif |
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return fantasia; |
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} |
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|
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bool LinuxSamplerEditor::open(void* ptr) { |
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dmsg(2, ("-->LinuxSamplerEditor::open\n")); |
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AEffEditor::open(ptr); |
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|
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// try to start the JSampler Fantasia GUI as a separate process |
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#ifdef WIN32 |
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// first check if it's already running |
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if (ProcessHandle != INVALID_HANDLE_VALUE) { |
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DWORD exitCode; |
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if (GetExitCodeProcess(ProcessHandle, &exitCode)) { |
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if (exitCode == STILL_ACTIVE) return true; |
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} |
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free(Command); |
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CloseHandle(ProcessHandle); |
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ProcessHandle = INVALID_HANDLE_VALUE; |
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} |
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|
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String fantasia = FindFantasia(); |
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if (!fantasia.empty()) { |
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// start a java process |
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String path; // look in PATH first |
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for (int i = 0 ; i < 2 ; i++) { // two tries |
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STARTUPINFO si; |
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PROCESS_INFORMATION pi; |
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ZeroMemory(&si, sizeof(si)); |
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si.cb = sizeof(si); |
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ZeroMemory(&pi, sizeof(pi)); |
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|
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Command = _tcsdup(TEXT((String("\"") + path + |
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"javaw\" -jar \"" + fantasia + |
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"\"").c_str())); |
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if (CreateProcess(NULL, Command, NULL, NULL, FALSE, 0, NULL, |
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NULL, &si, &pi)) { |
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ProcessHandle = pi.hProcess; |
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CloseHandle(pi.hThread); |
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break; |
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} else { |
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free(Command); |
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if (path.empty()) { |
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// java wasn't found in PATH, try again |
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// with an alternative directory |
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char* windir = getenv("windir"); |
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if (!windir) break; |
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#ifdef _WIN64 |
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// LS plugin is 64 bit - look for 32 bit java |
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path = String(windir) + "\\SysWOW64\\"; |
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#else |
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// LS plugin is 32 bit - look for 64 bit java |
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path = String(windir) + "\\Sysnative\\"; |
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#endif |
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} |
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} |
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} |
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} |
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#else |
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// first check if it's already running |
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if (pid && waitpid(pid, 0, WNOHANG) == 0) return true; |
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|
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String fantasia = FindFantasia(); |
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if (!fantasia.empty()) |
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{ |
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// start a java process |
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pid = fork(); |
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if (pid == -1) { |
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dmsg(1, ("fork failed %d %s\n", errno, strerror(errno))); |
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pid = 0; |
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} else if (pid == 0) { |
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#ifdef __APPLE__ |
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execl(fantasia.c_str(), fantasia.c_str(), (char*)0); |
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#else |
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execlp("java", "java", "-jar", fantasia.c_str(), (char*)0); |
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#endif |
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dmsg(1, ("exec failed %d %s\n", errno, strerror(errno))); |
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|
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// make sure something is executed, so the static |
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// destructors copied from the parent don't run |
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execl("/usr/bin/true", "/usr/bin/true", (char*)0); |
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} |
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} |
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#endif |
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dmsg(2, ("<--LinuxSamplerEditor::open\n")); |
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return true; |
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} |
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|
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void LinuxSamplerEditor::close() { |
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systemWindow = 0; |
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#ifdef WIN32 |
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if (ProcessHandle != INVALID_HANDLE_VALUE) { |
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TerminateProcess(ProcessHandle, 0); |
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free(Command); |
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CloseHandle(ProcessHandle); |
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ProcessHandle = INVALID_HANDLE_VALUE; |
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} |
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#else |
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if (pid) { |
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kill(pid, SIGTERM); |
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waitpid(pid, 0, 0); |
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pid = 0; |
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} |
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#endif |
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} |
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|
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bool LinuxSamplerEditor::getRect(ERect** rect) { |
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ERect* r = new ERect(); |
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r->top = 0; |
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r->left = 0; |
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r->bottom = 1; // 0 makes EnergyXT and Ardour on Linux crash |
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r->right = 400; |
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*rect = r; |
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return true; |
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} |
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|
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|
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// *************** LinuxSamplerVst *************** |
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// * |
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|
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LinuxSamplerVst::LinuxSamplerVst(audioMasterCallback audioMaster) : |
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AudioEffectX(audioMaster, MAX_VST_PROGRAMS, 0), |
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StateBuf(0) |
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{ |
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dmsg(2, ("-->constructor\n")); |
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|
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setProgram(0); |
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setNumInputs(0); |
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setNumOutputs(CHANNELS); |
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canProcessReplacing(); |
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isSynth(); |
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programsAreChunks(); |
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setUniqueID(CCONST('L', 'S', 'm', 'p')); // (registred at Steinberg) |
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setEditor(new LinuxSamplerEditor(this)); |
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|
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suspend(); |
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dmsg(2, ("<--constructor\n")); |
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} |
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|
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|
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void LinuxSamplerVst::resume() { |
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dmsg(2, ("-->resume\n")); |
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|
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// Ardour initially sets blockSize to zero - we postpone the |
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// initialization until we have a blockSize |
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if (blockSize != 0) { |
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if (!pAudioDevice) { |
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Init(int(sampleRate), blockSize, CHANNELS); |
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|
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if (!SavedChunk.empty()) { |
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SetState(SavedChunk); |
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SavedChunk.clear(); |
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} else { |
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InitState(); |
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} |
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} else { |
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Init(int(sampleRate), blockSize, CHANNELS); |
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} |
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} |
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AudioEffectX::resume(); |
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dmsg(2, ("<--resume\n")); |
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} |
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|
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LinuxSamplerVst::~LinuxSamplerVst() { |
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dmsg(2, ("-->destructor\n")); |
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if (StateBuf) free(StateBuf); |
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dmsg(2, ("<--destructor\n")); |
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} |
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|
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|
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void LinuxSamplerVst::setProgram(VstInt32 program) { |
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if (program < 0 || program >= MAX_VST_PROGRAMS || |
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!pMidiDevice || !pMidiDevice->Port()) return; |
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|
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int i = 0; |
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const std::vector<int> maps = MidiInstrumentMapper::Maps(); |
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for (int iMap = 0; iMap < maps.size(); ++iMap) { |
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const int mapID = maps[iMap]; |
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const std::map<midi_prog_index_t, MidiInstrumentMapper::entry_t> mappings = |
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MidiInstrumentMapper::Entries(maps[mapID]); |
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for (std::map<midi_prog_index_t, MidiInstrumentMapper::entry_t>::const_iterator iter = mappings.begin(); |
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iter != mappings.end(); ++iter, ++i) |
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{ |
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if (i == program) { |
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//TODO: switch MIDI instrument map before sending bank select and program change |
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|
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const uint iMIDIChannel = 0; |
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pMidiDevice->Port()->DispatchBankSelectMsb(iter->first.midi_bank_msb, iMIDIChannel); |
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pMidiDevice->Port()->DispatchBankSelectLsb(iter->first.midi_bank_lsb, iMIDIChannel); |
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pMidiDevice->Port()->DispatchProgramChange(iter->first.midi_prog, iMIDIChannel); |
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|
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curProgram = program; |
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|
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return; |
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} |
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} |
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} |
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} |
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|
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void LinuxSamplerVst::setProgramName(char* name) { |
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int i = 0; |
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const std::vector<int> maps = MidiInstrumentMapper::Maps(); |
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for (int iMap = 0; iMap < maps.size(); ++iMap) { |
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const int mapID = maps[iMap]; |
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const std::map<midi_prog_index_t, MidiInstrumentMapper::entry_t> mappings = |
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MidiInstrumentMapper::Entries(maps[mapID]); |
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for (std::map<midi_prog_index_t, MidiInstrumentMapper::entry_t>::const_iterator iter = mappings.begin(); |
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iter != mappings.end(); ++iter, ++i) |
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{ |
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if (i == curProgram) { |
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char buf[kVstMaxProgNameLen + 1] = {}; |
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vst_strncpy(buf, name, kVstMaxProgNameLen); |
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MidiInstrumentMapper::entry_t entry = iter->second; |
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entry.Name = buf; |
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try { |
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MidiInstrumentMapper::AddOrReplaceEntry( |
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mapID, iter->first, entry, false/*bInBackground*/ |
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); |
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} catch (Exception e) { |
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e.PrintMessage(); |
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} |
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return; |
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} |
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} |
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} |
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} |
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|
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void LinuxSamplerVst::getProgramName(char* name) { |
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if (!getProgramNameIndexed(0 /*dont care*/, curProgram, name)) { |
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vst_strncpy(name, "unknown", kVstMaxProgNameLen); |
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} |
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} |
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|
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bool LinuxSamplerVst::getProgramNameIndexed(VstInt32 /*category*/, VstInt32 index, |
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char* text) |
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{ |
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//NOTE: parameter 'category' is unused in VST 2.4 |
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|
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int i = 0; |
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const std::vector<int> maps = MidiInstrumentMapper::Maps(); |
| 377 |
for (int iMap = 0; iMap < maps.size(); ++iMap) { |
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const int mapID = maps[iMap]; |
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const std::map<midi_prog_index_t, MidiInstrumentMapper::entry_t> mappings = |
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MidiInstrumentMapper::Entries(maps[mapID]); |
| 381 |
for (std::map<midi_prog_index_t, MidiInstrumentMapper::entry_t>::const_iterator iter = mappings.begin(); |
| 382 |
iter != mappings.end(); ++iter, ++i) |
| 383 |
{ |
| 384 |
if (i == index) { |
| 385 |
vst_strncpy(text, iter->second.Name.c_str(), kVstMaxProgNameLen); |
| 386 |
return true; |
| 387 |
} |
| 388 |
} |
| 389 |
} |
| 390 |
return false; |
| 391 |
} |
| 392 |
|
| 393 |
|
| 394 |
bool LinuxSamplerVst::getOutputProperties(VstInt32 index, |
| 395 |
VstPinProperties* properties) { |
| 396 |
if (index < CHANNELS) { |
| 397 |
sprintf(properties->label, "LS %d", index + 1); |
| 398 |
properties->flags = kVstPinIsActive | kVstPinIsStereo; |
| 399 |
return true; |
| 400 |
} |
| 401 |
return false; |
| 402 |
} |
| 403 |
|
| 404 |
|
| 405 |
bool LinuxSamplerVst::getEffectName(char* name) { |
| 406 |
vst_strncpy(name, "LinuxSampler", kVstMaxEffectNameLen); |
| 407 |
return true; |
| 408 |
} |
| 409 |
|
| 410 |
|
| 411 |
bool LinuxSamplerVst::getVendorString(char* text) { |
| 412 |
vst_strncpy(text, "linuxsampler.org", kVstMaxVendorStrLen); |
| 413 |
return true; |
| 414 |
} |
| 415 |
|
| 416 |
|
| 417 |
bool LinuxSamplerVst::getProductString(char* text) { |
| 418 |
vst_strncpy(text, "LinuxSampler VST", kVstMaxProductStrLen); |
| 419 |
return true; |
| 420 |
} |
| 421 |
|
| 422 |
|
| 423 |
VstInt32 LinuxSamplerVst::getVendorVersion() { |
| 424 |
return 1000; |
| 425 |
} |
| 426 |
|
| 427 |
|
| 428 |
VstInt32 LinuxSamplerVst::canDo(char* text) { |
| 429 |
dmsg(2, ("canDo %s\n", text)); |
| 430 |
|
| 431 |
// supported features |
| 432 |
if (strcmp(text, "receiveVstEvents") == 0 || |
| 433 |
strcmp(text, "receiveVstMidiEvent") == 0 || |
| 434 |
strcmp(text, "midiProgramNames") == 0) return 1; |
| 435 |
|
| 436 |
// not supported features |
| 437 |
if (strcmp(text, "sendVstEvents") == 0 || |
| 438 |
strcmp(text, "sendVstMidiEvent") == 0 || |
| 439 |
strcmp(text, "receiveVstTimeInfo") == 0 || |
| 440 |
strcmp(text, "offline") == 0 || |
| 441 |
strcmp(text, "bypass") == 0) return -1; |
| 442 |
|
| 443 |
return 0; // "don't know", never heard of this feature |
| 444 |
} |
| 445 |
|
| 446 |
void LinuxSamplerVst::setSampleRate(float sampleRate) { |
| 447 |
dmsg(2, ("linuxsampler: setSampleRate %f\n", sampleRate)); |
| 448 |
AudioEffectX::setSampleRate(sampleRate); |
| 449 |
} |
| 450 |
|
| 451 |
void LinuxSamplerVst::setBlockSize(VstInt32 blockSize) { |
| 452 |
dmsg(2, ("linuxsampler: setBlockSize %d\n", blockSize)); |
| 453 |
AudioEffectX::setBlockSize(blockSize); |
| 454 |
} |
| 455 |
|
| 456 |
|
| 457 |
void LinuxSamplerVst::processReplacing(float** inputs, float** outputs, |
| 458 |
VstInt32 sampleFrames) { |
| 459 |
if (pAudioDevice) { |
| 460 |
for (int i = 0 ; i < CHANNELS ; i++) { |
| 461 |
pAudioDevice->Channel(i)->SetBuffer(outputs[i]); |
| 462 |
} |
| 463 |
pAudioDevice->Render(sampleFrames); |
| 464 |
} else { |
| 465 |
for (int i = 0 ; i < CHANNELS ; i++) { |
| 466 |
memset(outputs[i], 0, sampleFrames * sizeof(float)); |
| 467 |
} |
| 468 |
} |
| 469 |
} |
| 470 |
|
| 471 |
|
| 472 |
VstInt32 LinuxSamplerVst::processEvents(VstEvents* ev) { |
| 473 |
if (pMidiDevice) { |
| 474 |
for (int i = 0; i < ev->numEvents; i++) |
| 475 |
{ |
| 476 |
if (ev->events[i]->type == kVstMidiType) { |
| 477 |
VstMidiEvent* event = reinterpret_cast<VstMidiEvent*>(ev->events[i]); |
| 478 |
pMidiDevice->Port()->DispatchRaw(reinterpret_cast<uint8_t*>(event->midiData), |
| 479 |
event->deltaFrames); |
| 480 |
} |
| 481 |
} |
| 482 |
} |
| 483 |
return 1; |
| 484 |
} |
| 485 |
|
| 486 |
|
| 487 |
VstInt32 LinuxSamplerVst::getChunk(void** data, bool isPreset) { |
| 488 |
dmsg(2, ("-->getChunk\n")); |
| 489 |
|
| 490 |
String state = GetState(); |
| 491 |
dmsg(2, ("state=\"%s\"\n", state.c_str()));; |
| 492 |
if (StateBuf) free(StateBuf); |
| 493 |
StateBuf = strdup(state.c_str()); |
| 494 |
*data = StateBuf; |
| 495 |
dmsg(2, ("<--getChunk\n")); |
| 496 |
return (VstInt32) state.length() + 1; |
| 497 |
} |
| 498 |
|
| 499 |
|
| 500 |
VstInt32 LinuxSamplerVst::setChunk(void* data, VstInt32 byteSize, |
| 501 |
bool isPreset) { |
| 502 |
dmsg(2, ("-->setChunk byteSize=%d isPreset=%d\n", byteSize, isPreset)); |
| 503 |
|
| 504 |
const char* state = static_cast<const char*>(data); |
| 505 |
VstInt32 res = 0; |
| 506 |
if (byteSize > 0 && state[byteSize - 1] == '\0') { |
| 507 |
dmsg(2, ("state=\"%s\"\n", state)); |
| 508 |
if (pAudioDevice) { |
| 509 |
res = SetState(state); |
| 510 |
} else { |
| 511 |
SavedChunk = state; |
| 512 |
} |
| 513 |
} |
| 514 |
dmsg(2, ("<--setChunk\n")); |
| 515 |
return res; |
| 516 |
} |
| 517 |
} |
| 518 |
|
| 519 |
|
| 520 |
// *************** VST main function *************** |
| 521 |
// * |
| 522 |
|
| 523 |
AudioEffect* createEffectInstance(audioMasterCallback audioMaster) |
| 524 |
{ |
| 525 |
return new LinuxSamplerVst(audioMaster); |
| 526 |
} |
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