| 1 |
/*************************************************************************** |
| 2 |
* * |
| 3 |
* Copyright (C) 2008 Andreas Persson * |
| 4 |
* * |
| 5 |
* This program is free software; you can redistribute it and/or modify * |
| 6 |
* it under the terms of the GNU General Public License as published by * |
| 7 |
* the Free Software Foundation; either version 2 of the License, or * |
| 8 |
* (at your option) any later version. * |
| 9 |
* * |
| 10 |
* This program is distributed in the hope that it will be useful, * |
| 11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
| 12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
| 13 |
* GNU General Public License for more details. * |
| 14 |
* * |
| 15 |
* You should have received a copy of the GNU General Public License * |
| 16 |
* along with this program; if not, write to the Free Software * |
| 17 |
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, * |
| 18 |
* MA 02110-1301 USA * |
| 19 |
***************************************************************************/ |
| 20 |
|
| 21 |
#include <cstdio> |
| 22 |
#include <cstdlib> |
| 23 |
#include <cstring> |
| 24 |
|
| 25 |
#ifdef WIN32 |
| 26 |
#include <tchar.h> |
| 27 |
#endif |
| 28 |
|
| 29 |
#include "PluginVst.h" |
| 30 |
|
| 31 |
namespace { |
| 32 |
|
| 33 |
#if defined(WIN32) && CONFIG_DEBUG_LEVEL >= 2 |
| 34 |
// on windows, send debug logging to a file instead of a non-existent |
| 35 |
// console |
| 36 |
#include <cstdarg> |
| 37 |
#include "../../common/Mutex.h" |
| 38 |
LinuxSampler::Mutex logmutex; |
| 39 |
|
| 40 |
void log(const char* fmt, ...) { |
| 41 |
logmutex.Lock(); |
| 42 |
FILE* f = fopen("C:\\linuxsamplervst.log", "a"); |
| 43 |
va_list ap; |
| 44 |
va_start(ap, fmt); |
| 45 |
vfprintf(f, fmt, ap); |
| 46 |
va_end(ap); |
| 47 |
fclose(f); |
| 48 |
logmutex.Unlock(); |
| 49 |
} |
| 50 |
#undef dmsg |
| 51 |
#define dmsg(debuglevel,x) log x; |
| 52 |
#endif |
| 53 |
|
| 54 |
|
| 55 |
// *************** LinuxSamplerVstProgram *************** |
| 56 |
// * |
| 57 |
|
| 58 |
LinuxSamplerVstProgram::LinuxSamplerVstProgram() { |
| 59 |
vst_strncpy(name, "Basic", kVstMaxProgNameLen); |
| 60 |
} |
| 61 |
|
| 62 |
|
| 63 |
// *************** LinuxSamplerEditor *************** |
| 64 |
// * |
| 65 |
|
| 66 |
LinuxSamplerEditor::LinuxSamplerEditor(AudioEffect* effect) : |
| 67 |
AEffEditor(effect) { |
| 68 |
dmsg(2, ("-->LinuxSamplerEditor constructor\n")); |
| 69 |
#ifdef WIN32 |
| 70 |
ProcessHandle = INVALID_HANDLE_VALUE; |
| 71 |
#endif |
| 72 |
} |
| 73 |
|
| 74 |
LinuxSamplerEditor::~LinuxSamplerEditor() { |
| 75 |
close(); |
| 76 |
} |
| 77 |
|
| 78 |
bool LinuxSamplerEditor::open(void* ptr) { |
| 79 |
dmsg(2, ("-->LinuxSamplerEditor::open\n")); |
| 80 |
AEffEditor::open(ptr); |
| 81 |
|
| 82 |
#ifdef WIN32 |
| 83 |
// try to start the JSample Fantasia GUI as a separate process |
| 84 |
|
| 85 |
ProcessHandle = INVALID_HANDLE_VALUE; |
| 86 |
|
| 87 |
// assume Fantasia is in the same directory as the |
| 88 |
// liblinuxsampler dll |
| 89 |
String lspath = LinuxSampler::Sampler::GetInstallDir(); |
| 90 |
if (!lspath.empty()) { |
| 91 |
lspath += "\\"; |
| 92 |
WIN32_FIND_DATA fd; |
| 93 |
HANDLE hFind = FindFirstFile((lspath + "Fantasia*.jar").c_str(), &fd); |
| 94 |
if (hFind != INVALID_HANDLE_VALUE) { |
| 95 |
String fantasia(fd.cFileName); |
| 96 |
FindClose(hFind); |
| 97 |
|
| 98 |
// start a java process |
| 99 |
STARTUPINFO si; |
| 100 |
PROCESS_INFORMATION pi; |
| 101 |
ZeroMemory(&si, sizeof(si)); |
| 102 |
si.cb = sizeof(si); |
| 103 |
ZeroMemory(&pi, sizeof(pi)); |
| 104 |
|
| 105 |
Command = _tcsdup(TEXT((String("javaw -jar \"") + lspath + fantasia + "\" &").c_str())); |
| 106 |
CreateProcess(NULL, Command, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi); |
| 107 |
ProcessHandle = pi.hProcess; |
| 108 |
} |
| 109 |
} |
| 110 |
#endif |
| 111 |
dmsg(2, ("<--LinuxSamplerEditor::open\n")); |
| 112 |
return true; |
| 113 |
} |
| 114 |
|
| 115 |
void LinuxSamplerEditor::close() { |
| 116 |
systemWindow = 0; |
| 117 |
#ifdef WIN32 |
| 118 |
if (ProcessHandle != INVALID_HANDLE_VALUE) { |
| 119 |
TerminateProcess(ProcessHandle, 0); |
| 120 |
free(Command); |
| 121 |
ProcessHandle = INVALID_HANDLE_VALUE; |
| 122 |
} |
| 123 |
#endif |
| 124 |
} |
| 125 |
|
| 126 |
bool LinuxSamplerEditor::getRect(ERect** rect) { |
| 127 |
ERect* r = new ERect(); |
| 128 |
r->top = 0; |
| 129 |
r->left = 0; |
| 130 |
r->bottom = 0; |
| 131 |
r->right = 400; |
| 132 |
*rect = r; |
| 133 |
return true; |
| 134 |
} |
| 135 |
|
| 136 |
|
| 137 |
// *************** LinuxSamplerVst *************** |
| 138 |
// * |
| 139 |
|
| 140 |
LinuxSamplerVst::LinuxSamplerVst(audioMasterCallback audioMaster) : |
| 141 |
AudioEffectX(audioMaster, NbPrograms, 0), |
| 142 |
StateBuf(0) |
| 143 |
{ |
| 144 |
dmsg(2, ("-->constructor\n")); |
| 145 |
|
| 146 |
Programs = new LinuxSamplerVstProgram[NbPrograms]; |
| 147 |
setProgram(0); |
| 148 |
setNumInputs(0); |
| 149 |
setNumOutputs(2); |
| 150 |
canProcessReplacing(); |
| 151 |
isSynth(); |
| 152 |
programsAreChunks(); |
| 153 |
setUniqueID(CCONST('L', 'S', 'm', 'p')); // (registred at Steinberg) |
| 154 |
setEditor(new LinuxSamplerEditor(this)); |
| 155 |
|
| 156 |
suspend(); |
| 157 |
dmsg(2, ("<--constructor\n")); |
| 158 |
} |
| 159 |
|
| 160 |
|
| 161 |
void LinuxSamplerVst::resume() { |
| 162 |
dmsg(2, ("-->resume\n")); |
| 163 |
if (!pAudioDevice) { |
| 164 |
Init(int(sampleRate), blockSize); |
| 165 |
|
| 166 |
if (!SavedChunk.empty()) { |
| 167 |
SetState(SavedChunk); |
| 168 |
SavedChunk.clear(); |
| 169 |
} else { |
| 170 |
InitState(); |
| 171 |
} |
| 172 |
} else { |
| 173 |
Init(int(sampleRate), blockSize); |
| 174 |
} |
| 175 |
dmsg(2, ("<--resume\n")); |
| 176 |
} |
| 177 |
|
| 178 |
LinuxSamplerVst::~LinuxSamplerVst() { |
| 179 |
dmsg(2, ("-->destructor\n")); |
| 180 |
delete[] Programs; |
| 181 |
if (StateBuf) free(StateBuf); |
| 182 |
dmsg(2, ("<--destructor\n")); |
| 183 |
} |
| 184 |
|
| 185 |
|
| 186 |
void LinuxSamplerVst::setProgram(VstInt32 program) { |
| 187 |
if (program < 0 || program >= NbPrograms) return; |
| 188 |
|
| 189 |
curProgram = program; |
| 190 |
} |
| 191 |
|
| 192 |
|
| 193 |
void LinuxSamplerVst::setProgramName(char* name) { |
| 194 |
vst_strncpy(Programs[curProgram].name, name, kVstMaxProgNameLen); |
| 195 |
} |
| 196 |
|
| 197 |
|
| 198 |
void LinuxSamplerVst::getProgramName(char* name) { |
| 199 |
vst_strncpy(name, Programs[curProgram].name, kVstMaxProgNameLen); |
| 200 |
} |
| 201 |
|
| 202 |
|
| 203 |
bool LinuxSamplerVst::getOutputProperties(VstInt32 index, |
| 204 |
VstPinProperties* properties) { |
| 205 |
if (index < 2) { |
| 206 |
sprintf(properties->label, "LS %d", index + 1); |
| 207 |
properties->flags = kVstPinIsActive | kVstPinIsStereo; |
| 208 |
return true; |
| 209 |
} |
| 210 |
return false; |
| 211 |
} |
| 212 |
|
| 213 |
|
| 214 |
bool LinuxSamplerVst::getProgramNameIndexed(VstInt32 category, VstInt32 index, |
| 215 |
char* text) { |
| 216 |
if (index < NbPrograms) { |
| 217 |
vst_strncpy(text, Programs[index].name, kVstMaxProgNameLen); |
| 218 |
return true; |
| 219 |
} |
| 220 |
return false; |
| 221 |
} |
| 222 |
|
| 223 |
|
| 224 |
bool LinuxSamplerVst::getEffectName(char* name) { |
| 225 |
vst_strncpy(name, "LinuxSampler", kVstMaxEffectNameLen); |
| 226 |
return true; |
| 227 |
} |
| 228 |
|
| 229 |
|
| 230 |
bool LinuxSamplerVst::getVendorString(char* text) { |
| 231 |
vst_strncpy(text, "linuxsampler.org", kVstMaxVendorStrLen); |
| 232 |
return true; |
| 233 |
} |
| 234 |
|
| 235 |
|
| 236 |
bool LinuxSamplerVst::getProductString(char* text) { |
| 237 |
vst_strncpy(text, "LinuxSampler VST", kVstMaxProductStrLen); |
| 238 |
return true; |
| 239 |
} |
| 240 |
|
| 241 |
|
| 242 |
VstInt32 LinuxSamplerVst::getVendorVersion() { |
| 243 |
return 1000; |
| 244 |
} |
| 245 |
|
| 246 |
|
| 247 |
VstInt32 LinuxSamplerVst::canDo(char* text) { |
| 248 |
dmsg(2, ("canDo %s\n", text)); |
| 249 |
if (strcmp(text, "receiveVstEvents") == 0 || |
| 250 |
strcmp(text, "receiveVstMidiEvent") == 0) return 1; |
| 251 |
return -1; |
| 252 |
} |
| 253 |
|
| 254 |
void LinuxSamplerVst::setSampleRate(float sampleRate) { |
| 255 |
dmsg(2, ("linuxsampler: setSampleRate %f\n", sampleRate)); |
| 256 |
AudioEffectX::setSampleRate(sampleRate); |
| 257 |
} |
| 258 |
|
| 259 |
void LinuxSamplerVst::setBlockSize(VstInt32 blockSize) { |
| 260 |
dmsg(2, ("linuxsampler: setBlockSize %d\n", blockSize)); |
| 261 |
AudioEffectX::setBlockSize(blockSize); |
| 262 |
} |
| 263 |
|
| 264 |
|
| 265 |
void LinuxSamplerVst::processReplacing(float** inputs, float** outputs, |
| 266 |
VstInt32 sampleFrames) { |
| 267 |
if (pAudioDevice) { |
| 268 |
pAudioDevice->Channel(0)->SetBuffer(outputs[0]); |
| 269 |
pAudioDevice->Channel(1)->SetBuffer(outputs[1]); |
| 270 |
pAudioDevice->Render(sampleFrames); |
| 271 |
} else { |
| 272 |
memset(outputs[0], 0, sampleFrames * sizeof(float)); |
| 273 |
memset(outputs[1], 0, sampleFrames * sizeof(float)); |
| 274 |
} |
| 275 |
} |
| 276 |
|
| 277 |
|
| 278 |
VstInt32 LinuxSamplerVst::processEvents(VstEvents* ev) { |
| 279 |
if (pMidiDevice) { |
| 280 |
for (int i = 0; i < ev->numEvents; i++) |
| 281 |
{ |
| 282 |
if (ev->events[i]->type == kVstMidiType) { |
| 283 |
VstMidiEvent* event = reinterpret_cast<VstMidiEvent*>(ev->events[i]); |
| 284 |
pMidiDevice->Port()->DispatchRaw(reinterpret_cast<uint8_t*>(event->midiData), |
| 285 |
event->deltaFrames); |
| 286 |
} |
| 287 |
} |
| 288 |
} |
| 289 |
return 1; |
| 290 |
} |
| 291 |
|
| 292 |
|
| 293 |
VstInt32 LinuxSamplerVst::getChunk(void** data, bool isPreset) { |
| 294 |
dmsg(2, ("-->getChunk\n")); |
| 295 |
|
| 296 |
String state = GetState(); |
| 297 |
dmsg(2, ("state=\"%s\"\n", state.c_str()));; |
| 298 |
if (StateBuf) free(StateBuf); |
| 299 |
StateBuf = strdup(state.c_str()); |
| 300 |
*data = StateBuf; |
| 301 |
dmsg(2, ("<--getChunk\n")); |
| 302 |
return state.length() + 1; |
| 303 |
} |
| 304 |
|
| 305 |
|
| 306 |
VstInt32 LinuxSamplerVst::setChunk(void* data, VstInt32 byteSize, |
| 307 |
bool isPreset) { |
| 308 |
dmsg(2, ("-->setChunk byteSize=%d isPreset=%d\n", byteSize, isPreset)); |
| 309 |
|
| 310 |
const char* state = static_cast<const char*>(data); |
| 311 |
VstInt32 res = 0; |
| 312 |
if (byteSize > 0 && state[byteSize - 1] == '\0') { |
| 313 |
dmsg(2, ("state=\"%s\"\n", state)); |
| 314 |
if (pAudioDevice) { |
| 315 |
res = SetState(state); |
| 316 |
} else { |
| 317 |
SavedChunk = state; |
| 318 |
} |
| 319 |
} |
| 320 |
dmsg(2, ("<--setChunk\n")); |
| 321 |
return res; |
| 322 |
} |
| 323 |
} |
| 324 |
|
| 325 |
|
| 326 |
// *************** VST main function *************** |
| 327 |
// * |
| 328 |
|
| 329 |
AudioEffect* createEffectInstance(audioMasterCallback audioMaster) |
| 330 |
{ |
| 331 |
return new LinuxSamplerVst(audioMaster); |
| 332 |
} |
Parent Directory
| 
Revision Log