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Brought back portmidi with conditional compilation

This commit is contained in:
Andrew Alderwick 2021-06-25 23:20:36 +01:00
parent adf32aa9f4
commit 8783bf12b2
4 changed files with 21 additions and 11 deletions
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2
README.md
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@ -6,7 +6,7 @@ An assembler and emulator for the [Uxn stack-machine](https://wiki.xxiivv.com/si
### Linux
To build the Uxn emulator, you must have [SDL2](https://wiki.libsdl.org/).
To build the Uxn emulator, you must have [SDL2](https://wiki.libsdl.org/). If you wish to use the `Midi` device, you must also have [Portmidi](http://portmedia.sourceforge.net/portmidi/) installed. The build script indicates whether it has detected Portmidi or not, but will build Uxn either way.
```sh
./build.sh

9
build.sh
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@ -19,10 +19,17 @@ rm -f ./bin/uxnemu
rm -f ./bin/uxncli
rm -f ./bin/boot.rom
echo "Building.."
mkdir -p bin
CFLAGS="-std=c89 -Wall -Wno-unknown-pragmas"
UXNEMU_LDFLAGS="-L/usr/local/lib $(sdl2-config --cflags --libs)"
if cc ${CFLAGS} -c src/devices/mpu.c -o bin/mpu.o 2>/dev/null; then
rm -f bin/mpu.o
echo "Building with portmidi.."
UXNEMU_LDFLAGS="${UXNEMU_LDFLAGS} -lportmidi"
else
echo "Building without portmidi.."
CFLAGS="${CFLAGS} -DNO_PORTMIDI"
fi
if [ "${1}" = '--debug' ];
then
echo "[debug]"

8
src/devices/mpu.c
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@ -15,7 +15,7 @@ WITH REGARD TO THIS SOFTWARE.
int
initmpu(Mpu *m, Uint8 device)
{
/*
#ifndef NO_PORTMIDI
int i;
Pm_Initialize();
for(i = 0; i < Pm_CountDevices(); ++i)
@ -26,7 +26,7 @@ initmpu(Mpu *m, Uint8 device)
Pm_OpenInput(&m->midi, device, NULL, 128, 0, NULL);
m->queue = 0;
m->error = pmNoError;
*/
#endif
(void)m;
(void)device;
return 1;
@ -35,7 +35,7 @@ initmpu(Mpu *m, Uint8 device)
void
listenmpu(Mpu *m)
{
/*
#ifndef NO_PORTMIDI
const int result = Pm_Read(m->midi, m->events, 32);
if(result < 0) {
m->error = (PmError)result;
@ -43,6 +43,6 @@ listenmpu(Mpu *m)
return;
}
m->queue = result;
*/
#endif
(void)m;
}

13
src/devices/mpu.h
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@ -1,6 +1,5 @@
#include <stdio.h>
#include <stdlib.h>
/* #include <portmidi.h> */
/*
Copyright (c) 2021 Devine Lu Linvega
@ -14,19 +13,23 @@ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE.
*/
typedef unsigned char Uint8;
#ifndef NO_PORTMIDI
#include <portmidi.h>
#else
typedef struct {
int message;
} PmEvent;
#endif
typedef unsigned char Uint8;
typedef struct {
Uint8 queue;
PmEvent events[32];
/*
#ifndef NO_PORTMIDI
PmStream *midi;
PmError error;
*/
#endif
} Mpu;
int initmpu(Mpu *m, Uint8 device);