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/*************************************************************************** |
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* * |
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* Copyright (C) 2008 - 2012 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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|
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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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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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logmutex.Lock(); |
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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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logmutex.Unlock(); |
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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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// *************** LinuxSamplerVstProgram *************** |
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// * |
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|
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LinuxSamplerVstProgram::LinuxSamplerVstProgram() { |
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vst_strncpy(name, "Basic", kVstMaxProgNameLen); |
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} |
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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, NbPrograms, 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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Programs = new LinuxSamplerVstProgram[NbPrograms]; |
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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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delete[] Programs; |
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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 >= NbPrograms) return; |
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|
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curProgram = program; |
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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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vst_strncpy(Programs[curProgram].name, name, kVstMaxProgNameLen); |
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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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vst_strncpy(name, Programs[curProgram].name, kVstMaxProgNameLen); |
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} |
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|
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|
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bool LinuxSamplerVst::getOutputProperties(VstInt32 index, |
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VstPinProperties* properties) { |
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if (index < CHANNELS) { |
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sprintf(properties->label, "LS %d", index + 1); |
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properties->flags = kVstPinIsActive | kVstPinIsStereo; |
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return true; |
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} |
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return false; |
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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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if (index < NbPrograms) { |
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vst_strncpy(text, Programs[index].name, kVstMaxProgNameLen); |
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return true; |
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} |
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return false; |
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} |
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|
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|
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bool LinuxSamplerVst::getEffectName(char* name) { |
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vst_strncpy(name, "LinuxSampler", kVstMaxEffectNameLen); |
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return true; |
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} |
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|
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|
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bool LinuxSamplerVst::getVendorString(char* text) { |
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vst_strncpy(text, "linuxsampler.org", kVstMaxVendorStrLen); |
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return true; |
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} |
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|
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|
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bool LinuxSamplerVst::getProductString(char* text) { |
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vst_strncpy(text, "LinuxSampler VST", kVstMaxProductStrLen); |
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return true; |
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} |
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|
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|
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VstInt32 LinuxSamplerVst::getVendorVersion() { |
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return 1000; |
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} |
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|
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|
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VstInt32 LinuxSamplerVst::canDo(char* text) { |
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dmsg(2, ("canDo %s\n", text)); |
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if (strcmp(text, "receiveVstEvents") == 0 || |
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strcmp(text, "receiveVstMidiEvent") == 0) return 1; |
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return -1; |
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} |
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|
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void LinuxSamplerVst::setSampleRate(float sampleRate) { |
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dmsg(2, ("linuxsampler: setSampleRate %f\n", sampleRate)); |
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AudioEffectX::setSampleRate(sampleRate); |
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} |
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|
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void LinuxSamplerVst::setBlockSize(VstInt32 blockSize) { |
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dmsg(2, ("linuxsampler: setBlockSize %d\n", blockSize)); |
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AudioEffectX::setBlockSize(blockSize); |
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} |
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|
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|
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void LinuxSamplerVst::processReplacing(float** inputs, float** outputs, |
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VstInt32 sampleFrames) { |
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if (pAudioDevice) { |
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for (int i = 0 ; i < CHANNELS ; i++) { |
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pAudioDevice->Channel(i)->SetBuffer(outputs[i]); |
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} |
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pAudioDevice->Render(sampleFrames); |
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} else { |
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for (int i = 0 ; i < CHANNELS ; i++) { |
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memset(outputs[i], 0, sampleFrames * sizeof(float)); |
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} |
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} |
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} |
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|
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|
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VstInt32 LinuxSamplerVst::processEvents(VstEvents* ev) { |
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if (pMidiDevice) { |
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for (int i = 0; i < ev->numEvents; i++) |
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{ |
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if (ev->events[i]->type == kVstMidiType) { |
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VstMidiEvent* event = reinterpret_cast<VstMidiEvent*>(ev->events[i]); |
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pMidiDevice->Port()->DispatchRaw(reinterpret_cast<uint8_t*>(event->midiData), |
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event->deltaFrames); |
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} |
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} |
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} |
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return 1; |
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} |
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|
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|
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VstInt32 LinuxSamplerVst::getChunk(void** data, bool isPreset) { |
| 419 |
dmsg(2, ("-->getChunk\n")); |
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|
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String state = GetState(); |
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dmsg(2, ("state=\"%s\"\n", state.c_str()));; |
| 423 |
if (StateBuf) free(StateBuf); |
| 424 |
StateBuf = strdup(state.c_str()); |
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*data = StateBuf; |
| 426 |
dmsg(2, ("<--getChunk\n")); |
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return state.length() + 1; |
| 428 |
} |
| 429 |
|
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|
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VstInt32 LinuxSamplerVst::setChunk(void* data, VstInt32 byteSize, |
| 432 |
bool isPreset) { |
| 433 |
dmsg(2, ("-->setChunk byteSize=%d isPreset=%d\n", byteSize, isPreset)); |
| 434 |
|
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const char* state = static_cast<const char*>(data); |
| 436 |
VstInt32 res = 0; |
| 437 |
if (byteSize > 0 && state[byteSize - 1] == '\0') { |
| 438 |
dmsg(2, ("state=\"%s\"\n", state)); |
| 439 |
if (pAudioDevice) { |
| 440 |
res = SetState(state); |
| 441 |
} else { |
| 442 |
SavedChunk = state; |
| 443 |
} |
| 444 |
} |
| 445 |
dmsg(2, ("<--setChunk\n")); |
| 446 |
return res; |
| 447 |
} |
| 448 |
} |
| 449 |
|
| 450 |
|
| 451 |
// *************** VST main function *************** |
| 452 |
// * |
| 453 |
|
| 454 |
AudioEffect* createEffectInstance(audioMasterCallback audioMaster) |
| 455 |
{ |
| 456 |
return new LinuxSamplerVst(audioMaster); |
| 457 |
} |
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