Add jack2 patches

Signed-off-by: falkTX <falktx@falktx.com>

patches/jack2/01_ignore-missing-internals.patch

@@ -0,0 +1,53 @@
+From 3bc08a79629fe22b2cbf4acb4a69bfe79403a6a6 Mon Sep 17 00:00:00 2001
+From: falkTX <falktx@falktx.com>
+Date: Thu, 14 Mar 2024 18:26:30 +0100
+Subject: [PATCH] Ignore missing internals
+
+Signed-off-by: falkTX <falktx@falktx.com>
+---
+ common/JackControlAPI.cpp   | 3 ---
+ common/JackDriverLoader.cpp | 9 ---------
+ 2 files changed, 12 deletions(-)
+
+diff --git a/common/JackControlAPI.cpp b/common/JackControlAPI.cpp
+index c13640a97..0e005353b 100644
+--- a/common/JackControlAPI.cpp
++++ b/common/JackControlAPI.cpp
+@@ -458,10 +458,7 @@ jackctl_internals_load(
+ 
+     descriptor_node_ptr = jack_internals_load(NULL);
+     if (descriptor_node_ptr == NULL)
+-    {
+-        jack_error("Could not find any internals in driver directory!");
+         return false;
+-    }
+ 
+     while (descriptor_node_ptr != NULL)
+     {
+diff --git a/common/JackDriverLoader.cpp b/common/JackDriverLoader.cpp
+index 77150435c..9a1be518b 100644
+--- a/common/JackDriverLoader.cpp
++++ b/common/JackDriverLoader.cpp
+@@ -670,10 +670,6 @@ JSList* jack_internals_load(JSList * internals)
+ 
+     } while (FindNextFileW(file, &filedata));
+ 
+-    if (!driver_list) {
+-        jack_error ("Could not find any internals in %s!", driver_dir);
+-    }
+-
+  error:
+     if (driver_dir) {
+         free(driver_dir);
+@@ -738,11 +734,6 @@ JSList* jack_internals_load(JSList * internals)
+                     driver_dir, strerror (errno));
+     }
+ 
+-    if (!driver_list) {
+-        jack_error ("Could not find any internals in %s!", driver_dir);
+-        return NULL;
+-    }
+-
+     return driver_list;
+ }
+ 

patches/jack2/02_skip-alsa-jack-plugins.patch

@@ -0,0 +1,25 @@
+From 912ed316fdec187005f4172d06093baa1a791c2a Mon Sep 17 00:00:00 2001
+From: falkTX <falktx@falktx.com>
+Date: Thu, 14 Mar 2024 18:27:05 +0100
+Subject: [PATCH] Skip alsa-jack from alsa-plugins
+
+Signed-off-by: falkTX <falktx@falktx.com>
+---
+ common/JackInternalClient.cpp | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/common/JackInternalClient.cpp b/common/JackInternalClient.cpp
+index 6b4dd75bd..a428c975d 100644
+--- a/common/JackInternalClient.cpp
++++ b/common/JackInternalClient.cpp
+@@ -73,6 +73,10 @@ int JackInternalClient::Open(const char* server_name, const char* name, jack_uui
+     int result;
+     jack_log("JackInternalClient::Open name = %s", name);
+     
++    // ignore client from alsa-plugins
++    if (strncmp(name, "alsa-jack.", 10) == 0)
++        return -1;
++
+     if (strlen(name) >= JACK_CLIENT_NAME_SIZE) {
+         jack_error("\"%s\" is too long to be used as a JACK client name.\n"
+                    "Please use %lu characters or less",

patches/jack2/03_portaudio-midi-hack.patch

@@ -0,0 +1,147 @@
+From 6c283bab3570af9e059745aec6a7f41bfa8e37df Mon Sep 17 00:00:00 2001
+From: falkTX <falktx@falktx.com>
+Date: Thu, 14 Mar 2024 18:27:29 +0100
+Subject: [PATCH] portaudio driver midi bridge
+
+Signed-off-by: falkTX <falktx@falktx.com>
+---
+ windows/portaudio/JackPortAudioDriver.cpp | 64 +++++++++++++++++++++++
+ windows/portaudio/JackPortAudioDriver.h   |  7 +++
+ 2 files changed, 71 insertions(+)
+
+diff --git a/windows/portaudio/JackPortAudioDriver.cpp b/windows/portaudio/JackPortAudioDriver.cpp
+index 67829abac..0f428cf0d 100644
+--- a/windows/portaudio/JackPortAudioDriver.cpp
++++ b/windows/portaudio/JackPortAudioDriver.cpp
+@@ -26,6 +26,8 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ #include "JackTime.h"
+ #include "JackTools.h"
+ #include "JackCompilerDeps.h"
++#include "JackLockedEngine.h"
++#include "JackMidiPort.h"
+ #include <iostream>
+ #include <assert.h>
+ 
+@@ -33,6 +35,31 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ #include "JackServerGlobals.h"
+ #endif
+ 
++typedef uint32_t (*jacksym_midi_get_event_count)(void*);
++typedef int (*jacksym_midi_event_get)(jack_midi_event_t*, void*, uint32_t);
++typedef int (*jacksym_midi_event_write)(void*, jack_nframes_t, const jack_midi_data_t*, size_t);
++
++extern "C"
++{
++LIB_EXPORT uint32_t jack_midi_get_event_count(void* port_buffer);
++
++LIB_EXPORT int jack_midi_event_get(jack_midi_event_t* event,
++                                void* port_buffer, uint32_t event_index);
++
++LIB_EXPORT int jack_midi_event_write(void* port_buffer,
++                                     jack_nframes_t time, const jack_midi_data_t* data, size_t data_size);
++
++void PaJack_SetMidiCallbacks(PaStream* s,
++                             jacksym_midi_get_event_count get_count,
++                             jacksym_midi_event_get get,
++                             jacksym_midi_event_write write);
++
++void PaJack_SetMidiBuffers(PaStream* s,
++                           void* get_ptr,
++                           void* write_ptr);
++
++}
++
+ using namespace std;
+ 
+ namespace Jack
+@@ -109,6 +136,14 @@ int JackPortAudioDriver::Read()
+     for (int i = 0; i < fCaptureChannels; i++) {
+         memcpy(GetInputBuffer(i), fInputBuffer[i], sizeof(jack_default_audio_sample_t) * fEngineControl->fBufferSize);
+     }
++
++#ifdef __linux__
++    JackMidiBuffer* cbuf = (JackMidiBuffer*)fGraphManager->GetBuffer(fCaptureMidiPort, fEngineControl->fBufferSize);
++    JackMidiBuffer* pbuf = (JackMidiBuffer*)fGraphManager->GetBuffer(fPlaybackMidiPort, fEngineControl->fBufferSize);
++    pbuf->Reset(fEngineControl->fBufferSize);
++    PaJack_SetMidiBuffers(fStream, pbuf, cbuf);
++#endif
++
+     return 0;
+ }
+ 
+@@ -117,6 +152,12 @@ int JackPortAudioDriver::Write()
+     for (int i = 0; i < fPlaybackChannels; i++) {
+         memcpy(fOutputBuffer[i], GetOutputBuffer(i), sizeof(jack_default_audio_sample_t) * fEngineControl->fBufferSize);
+     }
++
++#ifdef __linux__
++    JackMidiBuffer* cbuf = (JackMidiBuffer*)fGraphManager->GetBuffer(fCaptureMidiPort, fEngineControl->fBufferSize);
++    cbuf->Reset(fEngineControl->fBufferSize);
++#endif
++
+     return 0;
+ }
+ 
+@@ -303,6 +344,23 @@ int JackPortAudioDriver::Open(jack_nframes_t buffer_size,
+             device_reservation_loop_running = false;
+         }
+     }
++
++    jack_port_id_t port_index;
++    JackPort* port;
++    if (fEngine->PortRegister(fClientControl.fRefNum, "system:midi_capture_1", JACK_DEFAULT_MIDI_TYPE,
++                              CaptureDriverFlags, fEngineControl->fBufferSize, &port_index) < 0) {
++        goto error;
++    }
++    fCaptureMidiPort = port_index;
++    port = fGraphManager->GetPort(port_index);
++    port->SetAlias("MOD Desktop MIDI Capture");
++    if (fEngine->PortRegister(fClientControl.fRefNum, "system:midi_playback_1", JACK_DEFAULT_MIDI_TYPE,
++                              PlaybackDriverFlags, fEngineControl->fBufferSize, &port_index) < 0) {
++        goto error;
++    }
++    fPlaybackMidiPort = port_index;
++    port = fGraphManager->GetPort(port_index);
++    port->SetAlias("MOD Desktop MIDI Playback");
+ #endif
+ 
+     return 0;
+@@ -387,6 +445,12 @@ int JackPortAudioDriver::Start()
+     if (JackAudioDriver::Start() == 0) {
+         PaError err;
+         if ((err = Pa_StartStream(fStream)) == paNoError) {
++#ifdef __linux__
++            PaJack_SetMidiCallbacks(fStream,
++                                    jack_midi_get_event_count,
++                                    jack_midi_event_get,
++                                    jack_midi_event_write);
++#endif
+             return 0;
+         }
+         jack_error("Pa_StartStream error = %s", Pa_GetErrorText(err));
+diff --git a/windows/portaudio/JackPortAudioDriver.h b/windows/portaudio/JackPortAudioDriver.h
+index 7b16d6ea6..f366189b7 100644
+--- a/windows/portaudio/JackPortAudioDriver.h
++++ b/windows/portaudio/JackPortAudioDriver.h
+@@ -49,7 +49,11 @@ class JackPortAudioDriver :
+         PaDeviceIndex fInputDevice;
+         PaDeviceIndex fOutputDevice;
+         PortAudioDevices* fPaDevices;
++#ifdef __linux__
++        int fCaptureMidiPort;
++        int fPlaybackMidiPort;
+         jack_native_thread_t fReservationLoopThread;
++#endif
+ 
+         static int Render(const void* inputBuffer, void* outputBuffer,
+                           unsigned long framesPerBuffer,
+@@ -69,6 +73,9 @@ class JackPortAudioDriver :
+ #endif
+                 JackAudioDriver(name, alias, engine, table), fStream(NULL), fInputBuffer(NULL), fOutputBuffer(NULL),
+                 fInputDevice(paNoDevice), fOutputDevice(paNoDevice), fPaDevices(pa_devices)
++#ifdef __linux__
++                , fCaptureMidiPort(0), fPlaybackMidiPort(0)
++#endif
+         {}
+ 
+         virtual ~JackPortAudioDriver()