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cmdproc.c
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cmdproc.c
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// -*- coding: utf-8 -*-
#include "cmdproc.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "midi.h"
#include "cmdproc.h"
#include "utils.h"
// convert string to boolean
static bool to_boolean(const char *s, bool *result_r)
{
if( 0==strcmp(s,"ENABLE") || 0==strcmp(s,"ON") || 0==strcmp(s,"YES") ||
0==strcmp(s,"TRUE") || 0==strcmp(s,"1") )
*result_r = true;
else if( 0==strcmp(s,"DISABLE") || 0==strcmp(s,"OFF") || 0==strcmp(s,"NO") ||
0==strcmp(s,"FALSE") || 0==strcmp(s,"0") )
*result_r = false;
else
return false;
return true;
}
int cmdprocDEBUG(int n_args, char **args)
{
if( n_args != 1 )
return CMDPROC_FATAL;
bool bl;
if( to_boolean(args[0], &bl) )
set_debug(bl);
else
return CMDPROC_FATAL;
DEBUGF("debug mode enabled");
return CMDPROC_SUCCESS;
}
// 主に同期を取るために使われる
int cmdprocECHO(int n_args, char **args)
{
DEBUGF("ECHO with %d argument(s)", n_args);
printf("< ");
for(int i=0; i<n_args; i++)
printf((i+1 == n_args?"%s":"%s "), args[i]);
printf("\n");
fflush(stdout);
}
int cmdprocQUIT(int n_arg, char **args)
{
DEBUGF("QUIT");
exit(0);
//
return 0;
}
static void list_names(char **names)
{
printf("{\n");
for(char **p = names; *p; p++)
printf("%s\n", *p);
printf("}\n");
fflush(stdout);
os_midi_free_enum_device_names(names);
}
static void list_input_devices()
{
list_names(os_midi_in_enum_device_names());
}
static void list_output_devices()
{
list_names(os_midi_out_enum_device_names());
}
int cmdprocLIST(int n_argc, char **args)
{
if( n_argc != 1 )
return CMDPROC_FATAL;
const char *direction = args[0];
if( 0 == strcmp("INPUT", direction) )
list_input_devices();
else if( 0 == strcmp("OUTPUT", direction) )
list_output_devices();
else{
return CMDPROC_FATAL;
}
DEBUGF("LIST %s", direction);
return CMDPROC_SUCCESS;
}
static inline bool check_direction(const char *direction, const char *cmd, bool ext)
{
if( 0 == strcmp(direction,"INPUT") ||
0 == strcmp(direction,"OUTPUT") ||
// 以下はOPENの場合のみ有効な指定子である
(ext && (0 == strcmp(direction,"INPUT8T") ||
0 == strcmp(direction,"INPUT9T")))
){
return true;
}
return false;
}
static inline bool check_dev(const char *hexes, midi_t *result_r, const char *cmd)
{
bool has_error;
int x = hexes_to_unsigned(hexes, &has_error);
if( has_error ){
return false;
}
*result_r = x;
return true;
}
int cmdprocOPEN(int n_args, char **args)
{
if( n_args != 2 )
return CMDPROC_FATAL;
const char *direction = args[0];
midi_t device_index;
if( ! check_direction(direction, "OPEN", true) || ! check_dev(args[1], &device_index, "OPEN") )
return CMDPROC_FATAL;
midi_t internal_dev;
if( direction[0] == 'I' ){
int translate_to;
if( 0 == strcmp(direction, "INPUT") )
translate_to = MIDIIN_TRANSLATE_NONE;
else if( 0 == strcmp(direction, "INPUT8T") )
translate_to = MIDIIN_TRANSLATE_TO_8;
else if( 0 == strcmp(direction, "INPUT9T") )
translate_to = MIDIIN_TRANSLATE_TO_9;
else
return CMDPROC_FATAL;
internal_dev = os_midi_in_open(device_index, translate_to);
}else if( 0 == strcmp(direction, "OUTPUT") )
internal_dev = os_midi_out_open(device_index);
else
return CMDPROC_FATAL;
// internal_dev == 0 は失敗を表す
printf("< %03X\n",internal_dev);
fflush(stdout);
DEBUGF("OPEN %s %d --> %03X", direction, device_index, internal_dev);
return CMDPROC_SUCCESS;
}
int cmdprocCLOSE(int n_args, char **args)
{
if( n_args != 2 )
return CMDPROC_FATAL;
const char *direction = args[0];
midi_t dev;
if( ! check_direction(direction, "CLOSE", false) || ! check_dev(args[1], &dev, "CLOSE") )
return CMDPROC_FATAL;
DEBUGF("CLOSE %s %d", direction, dev);
if( direction[0] == 'I' )
os_midi_in_close(dev);
else
os_midi_out_close(dev);
return CMDPROC_SUCCESS;
}
int cmdprocRESET(int n_args, char **args)
{
if( n_args != 2 )
return CMDPROC_FATAL;
const char *direction = args[0];
midi_t dev;
if( ! check_direction(direction, "RESET", false) || ! check_dev(args[1], &dev, "RESET") )
return CMDPROC_FATAL;
DEBUGF("CLOSE %s %d", direction, dev);
if( direction[0] == 'I' )
os_midi_in_reset(dev);
else
os_midi_out_reset(dev);
return CMDPROC_SUCCESS;
}
int cmdprocSTOP(int n_args, char **args)
{
if( n_args != 1 )
return CMDPROC_FATAL;
midi_t dev;
DEBUGF("STOP %d", dev);
if( ! check_dev(args[0], &dev, "STOP") )
return CMDPROC_FATAL;
os_midi_in_stop(dev);
return CMDPROC_SUCCESS;
}
int cmdprocLISTEN(int n_args, char **args)
{
if( n_args != 1 )
return CMDPROC_FATAL;
midi_t dev;
DEBUGF("STOP %d", dev);
if( ! check_dev(args[0], &dev, "LISTEN") )
return CMDPROC_FATAL;
os_midi_in_listen(dev);
return CMDPROC_SUCCESS;
}
static inline int hex2int(char c)
{
if( c >= '0' && c <= '9' )
return c-'0';
else if( c >= 'A' && c <= 'F' )
return c-'A'+10;
else
return -1;
}
static int try_send_sysex(midi_t dev, char *msg, size_t msg_len)
{
// msg_len >= 2 は保証されていることに注意
// 'F7' terminator not found
if( ! (msg[msg_len-2]=='F' && msg[msg_len-1]=='7') )
return CMDPROC_FATAL;
uint8_t *bytes = (uint8_t*)msg;
*bytes++ = 0xF0;
for(char *s=msg+2,*end =msg+(msg_len-2); s!=end; s+=2)
*bytes++ = (uint8_t)(hex2int(s[0])*16 + hex2int(s[1]));
*bytes = 0xF7;
os_midi_out_send_sysex(dev, (uint8_t*)msg, (int)msg_len/2);
return CMDPROC_SUCCESS;
}
int cmdprocSEND(int n_args, char **args)
{
if( n_args != 2 )
return CMDPROC_FATAL;
midi_t dev;
if( ! check_dev(args[0], &dev, "SEND") )
return CMDPROC_FATAL;
char *msg = args[1];
size_t msg_len = strlen(msg);
DEBUGF("SEND %d %s", dev, msg);
// メッセージはHEX表記であるため、
// 正しい表記は必ず偶数個のキャラクタから構成されねばならない
if( msg_len % 2 == 1 )
return CMDPROC_FATAL;
bool passed = true;
for(const char *p=msg; *p; *p++)
if( 0 > hex2int(*p) ){
passed = false;
break;
}
if( msg[0]=='F' && msg[1]=='0' ){
// System-Exclusive Message
return try_send_sysex(dev, msg, msg_len);
}
/***************************************************************************/
/******************** Except System-Exclusive Message *********************/
/***************************************************************************/
// SysExでなければ、最長6桁である
if( msg_len > 6 )
return CMDPROC_FATAL;
// ステータスバイトの基本チェック
if( ! (hex2int(msg[0])&0x8) )
passed = false;
// データバイトの基本チェック
if( msg_len >= 4 && (hex2int(msg[2])&0x8) )
passed = false;
if( msg_len == 6 && (hex2int(msg[4])&0x8) )
passed = false;
if( passed ){
int st_1 = hex2int(msg[0]);
int st_2 = hex2int(msg[1]);
if( st_1 < 0xF ){
switch( st_1 ){
case 0x8: case 0x9: case 0xA: case 0xB: case 0xE:
if( msg_len != 6 )
passed = false;
break;
default:
if( msg_len != 4 )
passed = false;
break;
}
}else{
switch( (st_1<<4)|st_2 ){
case 0xF2:
if( msg_len != 6 )
passed = false;
break;
case 0xF1: case 0xF3:
if( msg_len != 4 )
passed = false;
break;
case 0xF6: case 0xF8: case 0xFA: case 0xFB:
case 0xFC: case 0xFE: case 0xFF:
if( msg_len != 2 )
passed = false;
break;
default:
// 0xF4,0xF5,0xF9,0xFD are undefined
// 0xF7 is perfectory wrong
passed = false; break; // err
}
}
}
if( passed ){
uint8_t status_byte = (uint8_t)((hex2int(msg[0])<<4)|hex2int(msg[1]));
if( msg_len == 2 )
os_midi_out_send1(dev, status_byte);
else{
uint8_t data_1 = (uint8_t)((hex2int(msg[2])<<4)|hex2int(msg[3]));
if( msg_len == 4 )
os_midi_out_send2(dev, status_byte, data_1);
else{
uint8_t data_2 = (uint8_t)((hex2int(msg[4])<<4)|hex2int(msg[5]));
os_midi_out_send3(dev, status_byte, data_1, data_2);
}
}
}else{
return CMDPROC_FATAL;
}
return CMDPROC_SUCCESS;
}
int cmdprocCALLBACK(int n_args, char **args)
{
if( n_args != 3 )
return CMDPROC_FATAL;
const char *device = args[0];
const char *signal_pattern = args[1];
const char *callback_id = args[2];
DEBUGF("CALLBACK %s %s %s", device, signal_pattern, callback_id);
if( 0 == strcmp(device, "*") )
register_global_callback(signal_pattern, callback_id);
else{
int indev = atoi(device);
register_local_callback(indev, signal_pattern, callback_id);
}
return CMDPROC_SUCCESS;
}