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/******************************************************************************
Copyright (c) 2015, Focusrite Audio Engineering Ltd.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of Focusrite Audio Engineering Ltd., nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#include <stdio.h>
#include "app.h"
#include <CoreMIDI/CoreMIDI.h>
//////////////////////////////////////////////////////////////////////////
static MIDIClientRef g_client = 0;
static MIDIPortRef g_inDevPort = 0;
static MIDIPortRef g_outDevPort = 0;
static MIDIPortRef g_inVirtualPort = 0;
static MIDIPortRef g_outVirtualPort = 0;
// ____________________________________________________________________________
//
// Simulator "hal". This lets you exercise your device code without having to upload
// it to the hardware, which also means you can debug it interactively.
// ____________________________________________________________________________
void hal_plot_led(u8 type, u8 index, u8 red, u8 green, u8 blue)
{
// wire this up to MIDI out...
}
void hal_send_midi(u8 port, u8 status, u8 d1, u8 d2)
{
// send this up a virtual MIDI port?
}
void hal_send_sysex(u8 port, const u8* data, u16 length)
{
// as above, or just dump to console?
}
// ____________________________________________________________________________
//
// App event wrappers - these just log to the console. Would be nice to wire
// these up to a MIDI input from the real Launchpad Pro!
// ____________________________________________________________________________
static void sim_app_init()
{
app_init();
}
static void sim_app_surface_event(u8 type, u8 index, u8 value)
{
app_surface_event(type, index, value);
}
static void sim_app_midi_event(u8 port, u8 status, u8 d1, u8 d2)
{
app_midi_event(port, status, d1, d2);
}
static void sim_app_timer_event()
{
app_timer_event();
}
//////////////////////////////////////////////////////////////////////////
static void processPacket(const unsigned char *data, int length)
{
while (length > 0)
{
printf("%2.2x ", *data++);
--length;
}
printf("\n");
// recieve a pad or button press!
}
static void readProc(const MIDIPacketList *pktlist, void *readProcRefCon, void *srcConnRefCon)
{
// farm out the packet list entries
const MIDIPacket *packet = &pktlist->packet[0];
for (int i=0; i < pktlist->numPackets; ++i)
{
// process the packet - in our case, receive a surface message
processPacket(packet->data, packet->length);
// next
packet = MIDIPacketNext(packet);
}
}
static int findLaunchapdPro()
{
// find the input hardware port
for (ItemCount i=0; i < MIDIGetNumberOfSources(); ++i)
{
MIDIEndpointRef endpoint = MIDIGetSource(i);
if (endpoint)
{
// get the endpoint name (always available)
CFStringRef endpointName = NULL;
if (noErr != MIDIObjectGetStringProperty(endpoint, kMIDIPropertyName, &endpointName))
{
return -1;
}
if (CFStringCompare(endpointName, CFSTR("Standalone Port"), kCFCompareCaseInsensitive) == 0)
{
// found it! open the endpoint.
if (noErr != MIDIInputPortCreate(g_client, CFSTR("In"), readProc, NULL, &g_inDevPort))
{
return -1;
}
if (noErr != MIDIPortConnectSource(g_inDevPort, endpoint, NULL))
{
return -1;
}
}
}
}
// now find the output
for (ItemCount i=0; i < MIDIGetNumberOfDestinations(); ++i)
{
MIDIEndpointRef endpoint = MIDIGetDestination(i);
if (endpoint)
{
// get the endpoint name (always available)
CFStringRef endpointName = NULL;
if (noErr != MIDIObjectGetStringProperty(endpoint, kMIDIPropertyName, &endpointName))
{
return -1;
}
if (CFStringCompare(endpointName, CFSTR("Standalone Port"), kCFCompareCaseInsensitive) == 0)
{
// found it! open the endpoint.
if (noErr != MIDIOutputPortCreate(g_client, CFSTR("Out"), &g_outDevPort))
{
return -1;
}
}
}
}
return !(g_inDevPort && g_outDevPort);
}
static int createVirtualPorts()
{
// create local virtual Launchpad Pro ports
return 0;
}
// ____________________________________________________________________________
int main(int argc, char * argv[])
{
// open MIDI ports and wire them up
CFStringRef strName = CFStringCreateWithCString(NULL, "Launchpad Pro Simulator", kCFStringEncodingASCII);
if (noErr == MIDIClientCreate(strName, NULL, NULL, &g_client))
{
CFRelease(strName);
}
else
{
// failed to open MIDI client
return -1;
}
if (findLaunchapdPro())
{
// no Launchpad Pro connected
return -2;
}
if (createVirtualPorts())
{
// unable to open virtual MIDI ports
return -3;
}
// init the app
sim_app_init();
// start the terrible busywaiting timer loop
for (;;)
{
usleep(1000);
app_timer_event();
// tickle the runloop so we can recieve events
while (kCFRunLoopRunHandledSource == CFRunLoopRunInMode(kCFRunLoopCommonModes, 0, true));
}
return 0;
}
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