Changeset 77d8df8 in buchla-emu for emu

Timestamp:

01/05/2018 04:35:58 PM (7 years ago)

Author:

Alexander Heinrich <alex.heinrich@…>

Branches:

master

Children:

9ddbf3e

Parents:

379ffd9

Message:

Add CLI option for selecting MIDI ports.

Location:

emu

Files:

• all.h (modified) (2 diffs)
• main.c (modified) (3 diffs)
• mid.c (modified) (5 diffs)

emu/all.h

@@ -71 +71 @@
 extern uint32_t lcd_win;
 
+extern uint32_t mid_port;
+
 extern void sdl_init(void);
 extern void sdl_quit(void);
@@ -137 +139 @@
 extern uint32_t mid_read(uint32_t off, int32_t sz);
 extern void mid_write(uint32_t off, int32_t sz, uint32_t val);
+extern void mid_list(void);
 
 extern void fdd_init(void);

emu/main.c

@@ -45 +45 @@
 SDL_atomic_t run;
 
+uint32_t mid_port = 0;
+
 static void usage(FILE *fh)
 {
-        fprintf(fh, "usage: buchla [-h] [-v comp [-v comp [...]]] [-b bios] [-d disk] [-f font]\n");
+        fprintf(fh, "usage: buchla [-h] [-v comp [-v comp [...]]] [-b bios] [-d disk] [-f font] [-m midiport] \n");
         fprintf(fh, "where comp is one of: ");
 
@@ -55 +57 @@
 
         fprintf(fh, "all\n");
+        fprintf(fh, "and midiport is the number of the desired MIDI port\n");
+        fprintf(fh, "list all available MIDI ports with: buchla [-m list]\n");
 }
 
@@ -130 +134 @@
                         continue;
                 }
+
+                if (strcmp(argv[i], "-m") == 0) {
+                        if (++i == argc) {
+                                usage(stderr);
+                                fprintf(stderr, "missing argument to -m\n");
+                                exit(1);
+                        }
+
+                        if (strcmp(argv[i], "list") == 0) {
+                                mid_list();
+                                exit(0);
+                                continue;
+                        }
+
+                        // TODO: Assign midi port number
+                         mid_port = (uint32_t) atoi(argv[i]);
+                        continue;
+                }
         }
 }

emu/mid.c

@@ -47 +47 @@
 int32_t mid_verbose = 0;
 
-struct RtMidiWrapper* midiin;
+struct RtMidiWrapper* mid_in;
 
 static void xmit(int32_t un)
@@ -105 +105 @@
 }
 
-static void midi_callback(double timeStamp, const unsigned char* message, size_t size, void *userData) {
+static void mid_callback(double timeStamp, const unsigned char* message, size_t size, void *userData) {
         (void) size;
         (void) userData;
@@ -121 +121 @@
         ver("mid init");
 
-        midiin = rtmidi_in_create_default();
-        ver2("%p", midiin->ptr);
+        mid_in = rtmidi_in_create_default();
+        ver2("%p", mid_in->ptr);
         // check if null
-        uint32_t portcount = rtmidi_get_port_count(midiin);
-        ver2("%d", midiin->ok);
-
+
+        uint32_t portcount = rtmidi_get_port_count(mid_in);
         if (portcount == 0) {
-                midiin = NULL;
-                ver2("no midi ports\n");
-                return;
-        }
-
-        for (uint32_t i = 0; i < portcount; i++) {
-                ver2("Port %d: %s", i, rtmidi_get_port_name(midiin, i));
-        }
-
-        rtmidi_open_port(midiin, 0, rtmidi_get_port_name(midiin, 0));
-        if(!midiin->ok) {
-                fail("Failed to open Midi port");
-        }
-
-        rtmidi_in_set_callback(midiin, midi_callback, midiin->data);
-        if(!midiin->ok) {
-                fail("Failed to set Midi Callback");
+                mid_in = NULL;
+                ver2("No MIDI ports\n");
+                return;
+        }
+
+        if (mid_port > portcount) {
+                mid_in = NULL;
+                ver2("Selected MIDI port larger than number of midi ports");
+                return;
+        }
+
+        rtmidi_open_port(mid_in, mid_port, rtmidi_get_port_name(mid_in, mid_port));
+
+        if(mid_in->ok == 0) {
+                fail("Failed to open MIDI port");
+        }
+
+        ver2("Using MIDI port %u", mid_port);
+
+        rtmidi_in_set_callback(mid_in, mid_callback, mid_in->data);
+
+        if(mid_in->ok == 0) {
+                fail("Failed to set MIDI Callback");
         }
 }
@@ -150 +155 @@
 void mid_quit(void)
 {
-        if(midiin) {
-                rtmidi_close_port(midiin);
-                rtmidi_in_free(midiin);
+        if(mid_in) {
+                rtmidi_close_port(mid_in);
+                rtmidi_in_free(mid_in);
         }
 
@@ -231 +236 @@
         }
 }
+
+void mid_list(void) {
+        mid_in = rtmidi_in_create_default();
+
+        uint32_t portcount = rtmidi_get_port_count(mid_in);
+
+        if (portcount == 0) {
+                mid_in = NULL;
+                ver2("no MIDI ports\n");
+                return;
+        }
+
+        fprintf(stdout, "the following MIDI ports are available:\n");
+
+        for (uint32_t i = 0; i < portcount; i++) {
+                fprintf(stdout, "port %d: %s\n", i, rtmidi_get_port_name(mid_in, i));
+        }
+
+        rtmidi_in_free(mid_in);
+}