1 files changed, 136 insertions, 0 deletions
diff --git a/pd/portmidi_osx/pmtest.c b/pd/portmidi_osx/pmtest.c
new file mode 100644
index 00000000..5628d25e
--- /dev/null
+++ b/pd/portmidi_osx/pmtest.c
@@ -0,0 +1,136 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "portmidi.h"
+#include "porttime.h"
+#include "pminternal.h"
+
+#define LATENCY 0
+#define NUM_ECHOES 10
+
+int
+main()
+{
+    int i = 0;
+    int n = 0;
+    PmStream *midi_in;
+    PmStream *midi_out;
+    PmError err;
+    char line[80];
+    PmEvent buffer[NUM_ECHOES];
+    int transpose;
+    int delay;
+    int status, data1, data2;
+    int statusprefix;
+
+
+
+    /* always start the timer before you start midi */
+    Pt_Start(1, 0, 0); /* start a timer with millisecond accuracy */
+
+
+    for (i = 0; i < Pm_CountDevices(); i++) {
+        const PmDeviceInfo *info = Pm_GetDeviceInfo(i);
+        printf("%d: %s, %s", i, info->interf, info->name);
+        if (info->input) printf(" (input)");
+        if (info->output) printf(" (output)");
+        printf("\n");
+    }
+    
+    /* OPEN INPUT DEVICE */
+
+    printf("Type input number: ");
+    while (n != 1) {
+        n = scanf("%d", &i);
+        gets(line);
+    }
+
+    err = Pm_OpenInput(&midi_in, i, NULL, 100, NULL, NULL, NULL);
+    if (err) {
+        printf("could not open midi device: %s\n", Pm_GetErrorText(err));
+        exit(1);
+    }
+    printf("Midi Input opened.\n");
+
+    /* OPEN OUTPUT DEVICE */
+
+    printf("Type output number: ");
+    n = 0;
+    while (n != 1) {
+        n = scanf("%d", &i);
+        gets(line);
+    }
+
+    err = Pm_OpenOutput(&midi_out, i, NULL, 0, NULL, NULL, LATENCY);
+    if (err) {
+        printf("could not open midi device: %s\n", Pm_GetErrorText(err));
+        exit(1);
+    }
+    printf("Midi Output opened with %d ms latency.\n", LATENCY);
+
+
+
+    /* Get input from user for parameters */
+    printf("Type number of milliseconds for echoes: ");
+    n = 0;
+    while (n != 1) {
+        n = scanf("%d", &delay);
+        gets(line);
+    }
+
+    printf("Type number of semitones to transpose up: ");
+    n = 0;
+    while (n != 1) {
+        n = scanf("%d", &transpose);
+        gets(line);
+    }
+
+
+
+    /* loop, echoing input back transposed with multiple taps */
+
+    printf("Press C2 on the keyboard (2 octaves below middle C) to quit.\nWaiting for MIDI input...\n");
+
+    do {
+        err = Pm_Read(midi_in, buffer, 1);
+        if (err == 0) continue;           /* no bytes read. */
+
+        /* print a hash mark for each event read. */
+        printf("#");
+        fflush(stdout);
+
+        status = Pm_MessageStatus(buffer[0].message);
+        data1  = Pm_MessageData1(buffer[0].message);
+        data2  = Pm_MessageData2(buffer[0].message);
+        statusprefix = status >> 4;
+
+        /* ignore messages other than key-down and key-up */
+        if ((statusprefix != 0x9) && (statusprefix != 0x8)) continue;
+
+        printf("\nReceived key message = %X %X %X, at time %ld\n", status, data1, data2, buffer[0].timestamp);
+        fflush(stdout);
+
+        /* immediately send the echoes to PortMIDI */
+        for (i = 1; i < NUM_ECHOES; i++) {
+            buffer[i].message = Pm_Message(status, data1 + transpose, data2 >> i);
+            buffer[i].timestamp = buffer[0].timestamp + (i * delay);
+        }
+        Pm_Write(midi_out, buffer, NUM_ECHOES);
+    } while (data1 != 36); /* quit when C2 is pressed */
+
+    printf("Key C2 pressed.  Exiting...\n");
+    fflush(stdout);
+
+    /* Give the echoes time to finish before quitting. */
+    sleep(((NUM_ECHOES * delay) / 1000) + 1);
+
+    Pm_Close(midi_in);
+    Pm_Close(midi_out);
+
+    printf("Done.\n");
+    return 0;
+}
+
+
+