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Less hacky approach
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Signed-off-by: falkTX <[email protected]>
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@falkTX
falkTX committed Mar 13, 2024
1 parent 59f06bd commit eb09b71
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Showing 12 changed files with 803 additions and 150 deletions.
9 changes: 0 additions & 9 deletions src/plugin/ChildProcess.hpp
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Expand Up @@ -26,15 +26,6 @@

START_NAMESPACE_DISTRHO

// FIXME
#if defined(DISTRHO_OS_MAC)
# define P "/Users/falktx/Source/MOD/mod-app/build/mod-desktop.app/Contents"
#elif defined(DISTRHO_OS_WINDOWS)
# define P "Z:\\home\\falktx\\Source\\MOD\\mod-app\\build"
#else
# define P "/home/falktx/Source/MOD/mod-app/build"
#endif

// -----------------------------------------------------------------------------------------------------------

class ChildProcess
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214 changes: 98 additions & 116 deletions src/plugin/DesktopPlugin.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3,120 +3,55 @@

#include "DistrhoPlugin.hpp"

#include "Time.hpp"

#include "ChildProcess.hpp"
#include "SharedMemory.hpp"
#include "extra/Runner.hpp"

#include "utils.hpp"

START_NAMESPACE_DISTRHO

// -----------------------------------------------------------------------------------------------------------

class DesktopPlugin : public Plugin
class DesktopPlugin : public Plugin,
public Runner
{
ChildProcess jackd;
ChildProcess mod_ui;
SharedMemory shm;
bool processing = false;
bool firstTimeProcessing = true;
float parameters[24] = {};
float parameters[kParameterCount] = {};
float* tmpBuffers[2] = {};
uint32_t numFramesInShmBuffer = 0;
uint32_t numFramesInTmpBuffer = 0;

#ifdef DISTRHO_OS_WINDOWS
const CHAR* envp;
const WCHAR* envp;
#else
char** envp;
char* const* envp;
#endif

public:
DesktopPlugin()
: Plugin(0, 0, 0)
: Plugin(kParameterCount, 0, 0),
envp(nullptr)
{
if (isDummyInstance())
return;

#ifdef DISTRHO_OS_WINDOWS
envp = (
"MOD_DATA_DIR=" P "\\data\0"
"MOD_FACTORY_PEDALBOARDS_DIR=" P "\\pedalboards\0"
"LV2_PATH=" P "\\plugins\0"
"\0"
);
#else
uint envsize = 0;
while (environ[envsize] != nullptr)
++envsize;

envp = new char*[envsize + 8];

for (uint i = 0; i < envsize; ++i)
envp[i] = strdup(environ[i]);

envp[envsize] = strdup("MOD_DESKTOP=1");
envp[envsize + 1] = strdup("LANG=en_US.UTF-8");
#ifdef DISTRHO_OS_MAC
envp[envsize + 2] = strdup("DYLD_LIBRARY_PATH=" P "/MacOS");
envp[envsize + 3] = strdup("JACK_DRIVER_DIR=" P "/MacOS/jack");
envp[envsize + 4] = strdup("MOD_DATA_DIR=/Users/falktx/Documents/MOD Desktop");
envp[envsize + 5] = strdup("MOD_FACTORY_PEDALBOARDS_DIR=" P "/Resources/pedalboards");
envp[envsize + 6] = strdup("LV2_PATH=" P "/LV2");
envp[envsize + 7] = nullptr;
#else
envp[envsize + 2] = strdup("LD_LIBRARY_PATH=" P);
envp[envsize + 3] = strdup("JACK_DRIVER_DIR=" P "/jack");
envp[envsize + 4] = strdup("MOD_DATA_DIR=" P "/data");
envp[envsize + 5] = strdup("MOD_FACTORY_PEDALBOARDS_DIR=" P "/pedalboards");
envp[envsize + 6] = strdup("LV2_PATH=" P "/plugins");
envp[envsize + 7] = nullptr;
#endif
#endif

const String sampleRateStr(static_cast<int>(getSampleRate()));
const char* const jackd_args[] = {
#if defined(DISTRHO_OS_MAC)
P "/MacOS/jackd",
#elif defined(DISTRHO_OS_WINDOWS)
P "\\jackd.exe",
#else
P "/jackd",
#endif
"-R",
"-S",
"-n", "mod-desktop", "-C",
#if defined(DISTRHO_OS_MAC)
P "/MacOS/jack/jack-session.conf",
#elif defined(DISTRHO_OS_WINDOWS)
P "\\jack\\jack-session.conf",
#else
P "/jack/jack-session.conf",
#endif
"-d", "desktop", "-r", sampleRateStr.buffer(), nullptr
};
const char* const mod_ui_args[] = {
#if defined(DISTRHO_OS_MAC)
P "/MacOS/mod-ui",
#elif defined(DISTRHO_OS_WINDOWS)
P "\\mod-ui.exe",
#else
P "/mod-ui",
#endif
nullptr
};
envp = getEvironment();

if (shm.init() && jackd.start(jackd_args, envp))
{
processing = true;
bufferSizeChanged(getBufferSize());
if (shm.init() && run())
startRunner(500);

d_msleep(500);
mod_ui.start(mod_ui_args, envp);
}
bufferSizeChanged(getBufferSize());
}

~DesktopPlugin()
{
stopRunner();

if (processing && jackd.isRunning())
shm.stopWait();

Expand All @@ -128,16 +63,76 @@ class DesktopPlugin : public Plugin
delete[] tmpBuffers[0];
delete[] tmpBuffers[1];

if (envp != nullptr)
{
#ifndef DISTRHO_OS_WINDOWS
for (uint i = 0; envp[i] != nullptr; ++i)
std::free(envp[i]);
#endif

delete[] envp;
}
}

protected:
/* --------------------------------------------------------------------------------------------------------
* Keep services running */

bool run() override
{
#ifdef DISTRHO_OS_WINDOWS
#define APP_EXT ".ext"
#else
for (uint i = 0; envp[i] != nullptr; ++i)
std::free(envp[i]);

delete[] envp;
#define APP_EXT ""
#endif

if (! jackd.isRunning())
{
const String appDir(getAppDir());
const String jackdStr(appDir + DISTRHO_OS_SEP_STR "jackd" APP_EXT);
const String jacksessionStr(appDir + DISTRHO_OS_SEP_STR "jack" DISTRHO_OS_SEP_STR "jack-session.conf");
const String sampleRateStr(static_cast<int>(getSampleRate()));

const char* const jackd_args[] = {
jackdStr.buffer(),
"-R",
"-S",
"-n", "mod-desktop",
"-C",
jacksessionStr.buffer(),
"-d", "desktop",
"-r", sampleRateStr.buffer(),
nullptr
};

return jackd.start(jackd_args, envp);
}

if (! processing)
{
if (shm.sync())
processing = true;

return true;
}

if (! mod_ui.isRunning())
{
const String appDir(getAppDir());
const String moduiStr(appDir + DISTRHO_OS_SEP_STR "mod-ui" APP_EXT);

const char* const mod_ui_args[] = {
moduiStr.buffer(),
nullptr
};

return mod_ui.start(mod_ui_args, envp);
}

parameters[kParameterBasePortNumber] = 1;
return true;
}

protected:
/* --------------------------------------------------------------------------------------------------------
* Information */

Expand Down Expand Up @@ -213,10 +208,16 @@ class DesktopPlugin : public Plugin
*/
void initParameter(uint32_t index, Parameter& parameter) override
{
parameter.hints = kParameterIsAutomatable;

switch (index)
{
case kParameterBasePortNumber:
parameter.hints = kParameterIsOutput | kParameterIsInteger;
parameter.name = "base port number";
parameter.symbol = "base_port_num";
parameter.ranges.min = 0.f;
parameter.ranges.max = 512.f;
parameter.ranges.def = 0.f;
break;
}
}

Expand Down Expand Up @@ -245,7 +246,7 @@ class DesktopPlugin : public Plugin
*/
void setParameterValue(const uint32_t index, const float value) override
{
parameters[index] = value;
// parameters[index] = value;
}

/**
Expand Down Expand Up @@ -459,35 +460,16 @@ class DesktopPlugin : public Plugin
std::memset(tmpBuffers[1], 0, sizeof(float) * (bufferSize + 256));
}

void sampleRateChanged(const double sampleRate) override
void sampleRateChanged(double) override
{
if (! processing)
return;

const String sampleRateStr(static_cast<int>(sampleRate));
const char* const jackd_args[] = {
#if defined(DISTRHO_OS_MAC)
P "/MacOS/jackd",
#elif defined(DISTRHO_OS_WINDOWS)
P "\\jackd.exe",
#else
P "/jackd",
#endif
"-R",
"-S",
"-n", "mod-desktop", "-C",
#if defined(DISTRHO_OS_MAC)
P "/MacOS/jack/jack-session.conf",
#elif defined(DISTRHO_OS_WINDOWS)
P "\\jack\\jack-session.conf",
#else
P "/jack/jack-session.conf",
#endif
"-d", "desktop", "-r", sampleRateStr.buffer(), nullptr
};
if (jackd.isRunning())
{
stopRunner();
jackd.stop();

jackd.stop();
jackd.start(jackd_args);
if (run())
startRunner(500);
}
}

// -------------------------------------------------------------------------------------------------------
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