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// client.c |
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// |
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/**************************************************************************** |
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liblscp - LinuxSampler Control Protocol API |
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Copyright (C) 2004-2019, rncbc aka Rui Nuno Capela. All rights reserved. |
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|
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Lesser General Public |
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License as published by the Free Software Foundation; either |
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version 2.1 of the License, or (at your option) any later version. |
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|
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Lesser General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License along |
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with this program; if not, write to the Free Software Foundation, Inc., |
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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|
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*****************************************************************************/ |
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|
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#include <locale.h> |
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#include "common.h" |
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#include <sys/time.h> |
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#ifdef WIN32 |
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# include <errno.h> |
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#else |
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# include <sys/errno.h> |
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#endif |
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|
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|
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// Default timeout value (in milliseconds). |
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#define LSCP_TIMEOUT_MSECS 500 |
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|
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|
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// Whether to use getaddrinfo() instead |
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// of deprecated gethostbyname() |
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#if !defined(WIN32) |
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#define USE_GETADDRINFO 1 |
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#endif |
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|
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|
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// Local prototypes. |
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|
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static void _lscp_client_evt_proc (void *pvClient); |
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|
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static lscp_status_t _lscp_client_evt_connect (lscp_client_t *pClient); |
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static lscp_status_t _lscp_client_evt_request (lscp_client_t *pClient, |
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int iSubscribe, lscp_event_t event); |
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|
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|
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//------------------------------------------------------------------------- |
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// General helper functions. |
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|
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struct _locale_t { |
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char numeric[32]; |
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char ctype[32]; |
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}; |
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|
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// we need to ensure a constant locale setting e.g. for parsing |
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// floating point numbers with atof(), as the floating point separator |
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// character varies by the invidual locale settings |
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static void _save_and_set_c_locale(struct _locale_t* locale) |
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{ |
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strncpy(locale->numeric, setlocale(LC_NUMERIC, NULL), 32); |
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strncpy(locale->ctype, setlocale(LC_CTYPE, NULL), 32); |
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setlocale(LC_NUMERIC, "C"); |
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setlocale(LC_CTYPE, "C"); |
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} |
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|
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// restore the original locale setting as nothing happened |
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static void _restore_locale(struct _locale_t* locale) |
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{ |
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setlocale(LC_NUMERIC, locale->numeric); |
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setlocale(LC_CTYPE, locale->ctype); |
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} |
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|
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// seems the standard atof() function doesnt care much about locale |
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// runtime modifications, so we use this workaround |
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static float _atof(const char* txt) { |
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float f; |
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sscanf(txt, "%f", &f); // yeah, you're a good boy sscanf() |
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return f; |
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} |
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|
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|
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//------------------------------------------------------------------------- |
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// Event service (datagram oriented). |
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|
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static void _lscp_client_evt_proc ( void *pvClient ) |
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{ |
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lscp_client_t *pClient = (lscp_client_t *) pvClient; |
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|
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fd_set fds; // File descriptor list for select(). |
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int fd, fdmax; // Maximum file descriptor number. |
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struct timeval tv; // For specifying a timeout value. |
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int iSelect; // Holds select return status. |
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int iTimeout; |
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|
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char achBuffer[LSCP_BUFSIZ]; |
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int cchBuffer; |
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const char *pszSeps = ":\r\n"; |
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char *pszToken; |
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char *pch; |
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int cchToken; |
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|
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lscp_event_t event; |
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|
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#ifdef DEBUG |
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fprintf(stderr, "_lscp_client_evt_proc: Client waiting for events.\n"); |
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#endif |
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|
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while (pClient->evt.iState) { |
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|
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// Prepare for waiting on select... |
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fd = (int) pClient->evt.sock; |
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FD_ZERO(&fds); |
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FD_SET((unsigned int) fd, &fds); |
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fdmax = fd; |
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|
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// Use the timeout (x10) select feature ... |
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iTimeout = 10 * pClient->iTimeout; |
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if (iTimeout >= 1000) { |
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tv.tv_sec = iTimeout / 1000; |
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iTimeout -= tv.tv_sec * 1000; |
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} |
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else tv.tv_sec = 0; |
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tv.tv_usec = iTimeout * 1000; |
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|
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// Wait for event... |
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iSelect = select(fdmax + 1, &fds, NULL, NULL, &tv); |
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if (iSelect > 0 && FD_ISSET(fd, &fds)) { |
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// May recv now... |
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cchBuffer = recv(pClient->evt.sock, achBuffer, sizeof(achBuffer), 0); |
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if (cchBuffer > 0) { |
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// Make sure received buffer it's null terminated. |
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achBuffer[cchBuffer] = (char) 0; |
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pch = achBuffer; |
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do { |
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// Parse for the notification event message... |
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pszToken = lscp_strtok(NULL, pszSeps, &(pch)); // Have "NOTIFY" |
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if (strcasecmp(pszToken, "NOTIFY") == 0) { |
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pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
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event = lscp_event_from_text(pszToken); |
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// And pick the rest of data... |
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pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
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cchToken = (pszToken == NULL ? 0 : strlen(pszToken)); |
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// Double-check if we're really up to it... |
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if (pClient->events & event) { |
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// Invoke the client event callback... |
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if ((*pClient->pfnCallback)( |
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pClient, |
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event, |
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pszToken, |
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cchToken, |
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pClient->pvData) != LSCP_OK) { |
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pClient->evt.iState = 0; |
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} |
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} |
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} |
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} while (*pch); |
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} else { |
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lscp_socket_perror("_lscp_client_evt_proc: recv"); |
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pClient->evt.iState = 0; |
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pClient->iErrno = -errno; |
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} |
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} // Check if select has in error. |
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else if (iSelect < 0) { |
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lscp_socket_perror("_lscp_client_evt_proc: select"); |
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pClient->evt.iState = 0; |
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pClient->iErrno = -errno; |
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} |
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|
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// Finally, always signal the event. |
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lscp_cond_signal(pClient->cond); |
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} |
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|
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#ifdef DEBUG |
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fprintf(stderr, "_lscp_client_evt_proc: Client closing.\n"); |
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#endif |
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} |
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|
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|
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//------------------------------------------------------------------------- |
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// Event subscription helpers. |
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|
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// Open the event service socket connection. |
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static lscp_status_t _lscp_client_evt_connect ( lscp_client_t *pClient ) |
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{ |
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lscp_socket_t sock; |
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struct sockaddr_in addr; |
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int cAddr; |
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#if defined(WIN32) |
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int iSockOpt = (-1); |
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#endif |
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|
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// Prepare the event connection socket... |
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sock = socket(AF_INET, SOCK_STREAM, 0); |
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if (sock == INVALID_SOCKET) { |
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lscp_socket_perror("_lscp_client_evt_connect: socket"); |
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return LSCP_FAILED; |
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} |
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|
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#if defined(WIN32) |
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if (setsockopt(sock, SOL_SOCKET, SO_DONTLINGER, |
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(char *) &iSockOpt, sizeof(int)) == SOCKET_ERROR) |
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lscp_socket_perror("lscp_client_evt_connect: setsockopt(SO_DONTLINGER)"); |
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#endif |
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|
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#ifdef DEBUG |
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lscp_socket_getopts("_lscp_client_evt_connect:", sock); |
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#endif |
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|
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// Use same address of the command connection. |
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cAddr = sizeof(struct sockaddr_in); |
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memmove((char *) &addr, &(pClient->cmd.addr), cAddr); |
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|
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// Start the connection... |
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if (connect(sock, (struct sockaddr *) &addr, cAddr) == SOCKET_ERROR) { |
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lscp_socket_perror("_lscp_client_evt_connect: connect"); |
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closesocket(sock); |
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return LSCP_FAILED; |
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} |
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|
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// Set our socket agent struct... |
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lscp_socket_agent_init(&(pClient->evt), sock, &addr, cAddr); |
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|
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// And finally the service thread... |
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return lscp_socket_agent_start(&(pClient->evt), _lscp_client_evt_proc, pClient, 0); |
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} |
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|
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|
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// Subscribe to a single event. |
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static lscp_status_t _lscp_client_evt_request ( lscp_client_t *pClient, |
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int iSubscribe, lscp_event_t event ) |
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{ |
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const char *pszEvent; |
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char szQuery[LSCP_BUFSIZ]; |
240 |
int cchQuery; |
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|
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if (pClient == NULL) |
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return LSCP_FAILED; |
244 |
|
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// Which (single) event? |
246 |
pszEvent = lscp_event_to_text(event); |
247 |
if (pszEvent == NULL) |
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return LSCP_FAILED; |
249 |
|
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// Build the query string... |
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cchQuery = sprintf(szQuery, "%sSUBSCRIBE %s\n\n", |
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(iSubscribe == 0 ? "UN" : ""), pszEvent); |
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// Just send data, forget result... |
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if (send(pClient->evt.sock, szQuery, cchQuery, 0) < cchQuery) { |
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lscp_socket_perror("_lscp_client_evt_request: send"); |
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return LSCP_FAILED; |
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} |
258 |
|
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// Wait on response. |
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lscp_cond_wait(pClient->cond, pClient->mutex); |
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|
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// Update as naively as we can... |
263 |
if (iSubscribe) |
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pClient->events |= event; |
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else |
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pClient->events &= ~event; |
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|
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return LSCP_OK; |
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} |
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|
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|
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//------------------------------------------------------------------------- |
273 |
// Client versioning teller fuunction. |
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|
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|
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/** Retrieve the current client library version string. */ |
277 |
const char* lscp_client_package (void) { return LSCP_PACKAGE; } |
278 |
|
279 |
/** Retrieve the current client library version string. */ |
280 |
const char* lscp_client_version (void) { return LSCP_VERSION; } |
281 |
|
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/** Retrieve the current client library build string. */ |
283 |
const char* lscp_client_build (void) { return LSCP_BUILD; } |
284 |
|
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|
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//------------------------------------------------------------------------- |
287 |
// Client socket functions. |
288 |
|
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/** |
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* Create a client instance, estabilishing a connection to a server hostname, |
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* which must be listening on the given port. A client callback function is |
292 |
* also supplied for server notification event handling. |
293 |
* |
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* @param pszHost Hostname of the linuxsampler listening server. |
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* @param iPort Port number of the linuxsampler listening server. |
296 |
* @param pfnCallback Callback function to receive event notifications. |
297 |
* @param pvData User context opaque data, that will be passed |
298 |
* to the callback function. |
299 |
* |
300 |
* @returns The new client instance pointer if successfull, which shall be |
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* used on all subsequent client calls, NULL otherwise. |
302 |
*/ |
303 |
lscp_client_t* lscp_client_create ( const char *pszHost, int iPort, |
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lscp_client_proc_t pfnCallback, void *pvData ) |
305 |
{ |
306 |
lscp_client_t *pClient; |
307 |
#if defined(USE_GETADDRINFO) |
308 |
char szPort[33]; |
309 |
struct addrinfo hints; |
310 |
struct addrinfo *result, *res; |
311 |
#else |
312 |
struct hostent *pHost; |
313 |
struct sockaddr_in addr; |
314 |
int cAddr; |
315 |
#endif /* !USE_GETADDRINFO */ |
316 |
lscp_socket_t sock; |
317 |
#if defined(WIN32) |
318 |
int iSockOpt = (-1); |
319 |
#endif |
320 |
|
321 |
if (pfnCallback == NULL) { |
322 |
fprintf(stderr, "lscp_client_create: Invalid client callback function.\n"); |
323 |
return NULL; |
324 |
} |
325 |
|
326 |
#if defined(USE_GETADDRINFO) |
327 |
|
328 |
// Convert port number to string/name... |
329 |
snprintf(szPort, sizeof(szPort), "%d", iPort); |
330 |
|
331 |
// Obtain address(es) matching host/port... |
332 |
memset(&hints, 0, sizeof(struct addrinfo)); |
333 |
hints.ai_family = AF_INET; |
334 |
hints.ai_socktype = SOCK_STREAM; |
335 |
|
336 |
result = NULL; |
337 |
|
338 |
if (getaddrinfo(pszHost, szPort, &hints, &result)) { |
339 |
lscp_socket_herror("lscp_client_create: getaddrinfo"); |
340 |
return NULL; |
341 |
} |
342 |
|
343 |
#else |
344 |
|
345 |
// Obtain host matching name... |
346 |
pHost = gethostbyname(pszHost); |
347 |
if (pHost == NULL) { |
348 |
lscp_socket_herror("lscp_client_create: gethostbyname"); |
349 |
return NULL; |
350 |
} |
351 |
|
352 |
#endif /* !USE_GETADDRINFO */ |
353 |
|
354 |
// Allocate client descriptor... |
355 |
|
356 |
pClient = (lscp_client_t *) malloc(sizeof(lscp_client_t)); |
357 |
if (pClient == NULL) { |
358 |
fprintf(stderr, "lscp_client_create: Out of memory.\n"); |
359 |
return NULL; |
360 |
} |
361 |
memset(pClient, 0, sizeof(lscp_client_t)); |
362 |
|
363 |
pClient->pfnCallback = pfnCallback; |
364 |
pClient->pvData = pvData; |
365 |
|
366 |
#ifdef DEBUG |
367 |
fprintf(stderr, |
368 |
"lscp_client_create: pClient=%p: pszHost=%s iPort=%d.\n", |
369 |
pClient, pszHost, iPort); |
370 |
#endif |
371 |
|
372 |
// Prepare the command connection socket... |
373 |
|
374 |
#if defined(USE_GETADDRINFO) |
375 |
|
376 |
// getaddrinfo() returns a list of address structures; |
377 |
// try each address until we successfully connect(2); |
378 |
// if socket or connect fails, we close the socket and |
379 |
// try the next address... |
380 |
sock = INVALID_SOCKET; |
381 |
|
382 |
for (res = result; res; res = res->ai_next) { |
383 |
sock = socket(res->ai_family, res->ai_socktype, res->ai_protocol); |
384 |
if (sock == INVALID_SOCKET) |
385 |
continue; |
386 |
#if defined(WIN32) |
387 |
if (setsockopt(sock, SOL_SOCKET, SO_DONTLINGER, |
388 |
(char *) &iSockOpt, sizeof(int)) == SOCKET_ERROR) |
389 |
lscp_socket_perror("lscp_client_create: cmd: setsockopt(SO_DONTLINGER)"); |
390 |
#endif |
391 |
#ifdef DEBUG |
392 |
lscp_socket_getopts("lscp_client_create: cmd", sock); |
393 |
#endif |
394 |
if (connect(sock, res->ai_addr, res->ai_addrlen) != SOCKET_ERROR) |
395 |
break; |
396 |
closesocket(sock); |
397 |
} |
398 |
|
399 |
if (sock == INVALID_SOCKET) { |
400 |
lscp_socket_perror("lscp_client_create: cmd: socket"); |
401 |
free(pClient); |
402 |
return NULL; |
403 |
} |
404 |
|
405 |
if (res == NULL) { |
406 |
lscp_socket_perror("lscp_client_create: cmd: connect"); |
407 |
free(pClient); |
408 |
return NULL; |
409 |
} |
410 |
|
411 |
// Initialize the command socket agent struct... |
412 |
lscp_socket_agent_init(&(pClient->cmd), sock, |
413 |
(struct sockaddr_in *) res->ai_addr, res->ai_addrlen); |
414 |
|
415 |
// No longer needed... |
416 |
freeaddrinfo(result); |
417 |
|
418 |
#else |
419 |
|
420 |
sock = socket(AF_INET, SOCK_STREAM, 0); |
421 |
if (sock == INVALID_SOCKET) { |
422 |
lscp_socket_perror("lscp_client_create: cmd: socket"); |
423 |
free(pClient); |
424 |
return NULL; |
425 |
} |
426 |
|
427 |
#if defined(WIN32) |
428 |
if (setsockopt(sock, SOL_SOCKET, SO_DONTLINGER, |
429 |
(char *) &iSockOpt, sizeof(int)) == SOCKET_ERROR) |
430 |
lscp_socket_perror("lscp_client_create: cmd: setsockopt(SO_DONTLINGER)"); |
431 |
#endif |
432 |
|
433 |
#ifdef DEBUG |
434 |
lscp_socket_getopts("lscp_client_create: cmd", sock); |
435 |
#endif |
436 |
|
437 |
cAddr = sizeof(struct sockaddr_in); |
438 |
memset((char *) &addr, 0, cAddr); |
439 |
addr.sin_family = pHost->h_addrtype; |
440 |
memmove((char *) &(addr.sin_addr), pHost->h_addr, pHost->h_length); |
441 |
addr.sin_port = htons((short) iPort); |
442 |
|
443 |
if (connect(sock, (struct sockaddr *) &addr, cAddr) == SOCKET_ERROR) { |
444 |
lscp_socket_perror("lscp_client_create: cmd: connect"); |
445 |
closesocket(sock); |
446 |
free(pClient); |
447 |
return NULL; |
448 |
} |
449 |
|
450 |
// Initialize the command socket agent struct... |
451 |
lscp_socket_agent_init(&(pClient->cmd), sock, &addr, cAddr); |
452 |
|
453 |
#endif /* !USE_GETADDRINFO */ |
454 |
|
455 |
#ifdef DEBUG |
456 |
fprintf(stderr, |
457 |
"lscp_client_create: cmd: pClient=%p: sock=%d addr=%s port=%d.\n", |
458 |
pClient, pClient->cmd.sock, |
459 |
inet_ntoa(pClient->cmd.addr.sin_addr), |
460 |
ntohs(pClient->cmd.addr.sin_port)); |
461 |
#endif |
462 |
|
463 |
// Initialize the event service socket struct... |
464 |
lscp_socket_agent_init(&(pClient->evt), INVALID_SOCKET, NULL, 0); |
465 |
// No events subscribed, yet. |
466 |
pClient->events = LSCP_EVENT_NONE; |
467 |
// Initialize cached members. |
468 |
pClient->audio_drivers = NULL; |
469 |
pClient->midi_drivers = NULL; |
470 |
pClient->audio_devices = NULL; |
471 |
pClient->midi_devices = NULL; |
472 |
pClient->engines = NULL; |
473 |
pClient->channels = NULL; |
474 |
pClient->fxsends = NULL; |
475 |
pClient->midi_instruments = NULL; |
476 |
pClient->midi_maps = NULL; |
477 |
pClient->midi_map_name = NULL; |
478 |
lscp_driver_info_init(&(pClient->audio_driver_info)); |
479 |
lscp_driver_info_init(&(pClient->midi_driver_info)); |
480 |
lscp_device_info_init(&(pClient->audio_device_info)); |
481 |
lscp_device_info_init(&(pClient->midi_device_info)); |
482 |
lscp_param_info_init(&(pClient->audio_param_info)); |
483 |
lscp_param_info_init(&(pClient->midi_param_info)); |
484 |
lscp_device_port_info_init(&(pClient->audio_channel_info)); |
485 |
lscp_device_port_info_init(&(pClient->midi_port_info)); |
486 |
lscp_param_info_init(&(pClient->audio_channel_param_info)); |
487 |
lscp_param_info_init(&(pClient->midi_port_param_info)); |
488 |
lscp_server_info_init(&(pClient->server_info)); |
489 |
lscp_engine_info_init(&(pClient->engine_info)); |
490 |
lscp_channel_info_init(&(pClient->channel_info)); |
491 |
lscp_fxsend_info_init(&(pClient->fxsend_info)); |
492 |
lscp_midi_instrument_info_init(&(pClient->midi_instrument_info)); |
493 |
// Initialize error stuff. |
494 |
pClient->pszResult = NULL; |
495 |
pClient->iErrno = -1; |
496 |
// Stream usage stuff. |
497 |
pClient->buffer_fill = NULL; |
498 |
pClient->iStreamCount = 0; |
499 |
// Default timeout value. |
500 |
pClient->iTimeout = LSCP_TIMEOUT_MSECS; |
501 |
pClient->iTimeoutCount = 0; |
502 |
|
503 |
// Initialize the transaction mutex. |
504 |
lscp_mutex_init(pClient->mutex); |
505 |
lscp_cond_init(pClient->cond); |
506 |
|
507 |
// Finally we've some success... |
508 |
return pClient; |
509 |
} |
510 |
|
511 |
|
512 |
/** |
513 |
* Wait for a client instance to terminate graciously. |
514 |
* |
515 |
* @param pClient Pointer to client instance structure. |
516 |
*/ |
517 |
lscp_status_t lscp_client_join ( lscp_client_t *pClient ) |
518 |
{ |
519 |
if (pClient == NULL) |
520 |
return LSCP_FAILED; |
521 |
|
522 |
#ifdef DEBUG |
523 |
fprintf(stderr, "lscp_client_join: pClient=%p.\n", pClient); |
524 |
#endif |
525 |
|
526 |
// lscp_socket_agent_join(&(pClient->evt)); |
527 |
lscp_socket_agent_join(&(pClient->cmd)); |
528 |
|
529 |
return LSCP_OK; |
530 |
} |
531 |
|
532 |
|
533 |
/** |
534 |
* Terminate and destroy a client instance. |
535 |
* |
536 |
* @param pClient Pointer to client instance structure. |
537 |
* |
538 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
539 |
*/ |
540 |
lscp_status_t lscp_client_destroy ( lscp_client_t *pClient ) |
541 |
{ |
542 |
if (pClient == NULL) |
543 |
return LSCP_FAILED; |
544 |
|
545 |
#ifdef DEBUG |
546 |
fprintf(stderr, "lscp_client_destroy: pClient=%p.\n", pClient); |
547 |
#endif |
548 |
|
549 |
// Lock this section up. |
550 |
lscp_mutex_lock(pClient->mutex); |
551 |
|
552 |
// Free up all cached members. |
553 |
lscp_midi_instrument_info_free(&(pClient->midi_instrument_info)); |
554 |
lscp_fxsend_info_free(&(pClient->fxsend_info)); |
555 |
lscp_channel_info_free(&(pClient->channel_info)); |
556 |
lscp_engine_info_free(&(pClient->engine_info)); |
557 |
lscp_server_info_free(&(pClient->server_info)); |
558 |
lscp_param_info_free(&(pClient->midi_port_param_info)); |
559 |
lscp_param_info_free(&(pClient->audio_channel_param_info)); |
560 |
lscp_device_port_info_free(&(pClient->midi_port_info)); |
561 |
lscp_device_port_info_free(&(pClient->audio_channel_info)); |
562 |
lscp_param_info_free(&(pClient->midi_param_info)); |
563 |
lscp_param_info_free(&(pClient->audio_param_info)); |
564 |
lscp_device_info_free(&(pClient->midi_device_info)); |
565 |
lscp_device_info_free(&(pClient->audio_device_info)); |
566 |
lscp_driver_info_free(&(pClient->midi_driver_info)); |
567 |
lscp_driver_info_free(&(pClient->audio_driver_info)); |
568 |
// Free available engine table. |
569 |
lscp_szsplit_destroy(pClient->audio_drivers); |
570 |
lscp_szsplit_destroy(pClient->midi_drivers); |
571 |
lscp_isplit_destroy(pClient->audio_devices); |
572 |
lscp_isplit_destroy(pClient->midi_devices); |
573 |
lscp_szsplit_destroy(pClient->engines); |
574 |
lscp_isplit_destroy(pClient->channels); |
575 |
lscp_isplit_destroy(pClient->fxsends); |
576 |
lscp_midi_instruments_destroy(pClient->midi_instruments); |
577 |
lscp_isplit_destroy(pClient->midi_maps); |
578 |
if (pClient->midi_map_name) |
579 |
free(pClient->midi_map_name); |
580 |
// Make them null. |
581 |
pClient->audio_drivers = NULL; |
582 |
pClient->midi_drivers = NULL; |
583 |
pClient->audio_devices = NULL; |
584 |
pClient->midi_devices = NULL; |
585 |
pClient->engines = NULL; |
586 |
pClient->channels = NULL; |
587 |
pClient->fxsends = NULL; |
588 |
pClient->midi_instruments = NULL; |
589 |
pClient->midi_maps = NULL; |
590 |
pClient->midi_map_name = NULL; |
591 |
// Free result error stuff. |
592 |
lscp_client_set_result(pClient, NULL, 0); |
593 |
// Free stream usage stuff. |
594 |
if (pClient->buffer_fill) |
595 |
free(pClient->buffer_fill); |
596 |
pClient->buffer_fill = NULL; |
597 |
pClient->iStreamCount = 0; |
598 |
pClient->iTimeout = 0; |
599 |
|
600 |
// Free socket agents. |
601 |
lscp_socket_agent_free(&(pClient->evt)); |
602 |
lscp_socket_agent_free(&(pClient->cmd)); |
603 |
|
604 |
// Last but not least, free good ol'transaction mutex. |
605 |
lscp_mutex_unlock(pClient->mutex); |
606 |
lscp_mutex_destroy(pClient->mutex); |
607 |
lscp_cond_destroy(pClient->cond); |
608 |
|
609 |
free(pClient); |
610 |
|
611 |
return LSCP_OK; |
612 |
} |
613 |
|
614 |
|
615 |
/** |
616 |
* Set the client transaction timeout interval. |
617 |
* |
618 |
* @param pClient Pointer to client instance structure. |
619 |
* @param iTimeout Transaction timeout in milliseconds. |
620 |
* |
621 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
622 |
*/ |
623 |
lscp_status_t lscp_client_set_timeout ( lscp_client_t *pClient, int iTimeout ) |
624 |
{ |
625 |
if (pClient == NULL) |
626 |
return LSCP_FAILED; |
627 |
if (iTimeout < 0) |
628 |
return LSCP_FAILED; |
629 |
|
630 |
pClient->iTimeout = iTimeout; |
631 |
return LSCP_OK; |
632 |
} |
633 |
|
634 |
|
635 |
/** |
636 |
* Get the client transaction timeout interval. |
637 |
* |
638 |
* @param pClient Pointer to client instance structure. |
639 |
* |
640 |
* @returns The current timeout value milliseconds, -1 in case of failure. |
641 |
*/ |
642 |
int lscp_client_get_timeout ( lscp_client_t *pClient ) |
643 |
{ |
644 |
if (pClient == NULL) |
645 |
return -1; |
646 |
|
647 |
return pClient->iTimeout; |
648 |
} |
649 |
|
650 |
/** |
651 |
* Check whether connection to server is lost. |
652 |
* |
653 |
* @param pClient Pointer to client instance structure. |
654 |
* |
655 |
* @returns @c true if client lost connection to server, @c false otherwise. |
656 |
*/ |
657 |
bool lscp_client_connection_lost ( lscp_client_t *pClient ) |
658 |
{ |
659 |
int err = lscp_client_get_errno(pClient); |
660 |
if (err >= 0) return false; |
661 |
return err == -EPIPE || err == -ECONNRESET || err == -ECONNABORTED; |
662 |
} |
663 |
|
664 |
|
665 |
//------------------------------------------------------------------------- |
666 |
// Client common protocol functions. |
667 |
|
668 |
/** |
669 |
* Submit a command query line string to the server. The query string |
670 |
* must be cr/lf and null terminated. Besides the return code, the |
671 |
* specific server response to the command request is made available |
672 |
* by the @ref lscp_client_get_result and @ref lscp_client_get_errno |
673 |
* function calls. |
674 |
* |
675 |
* @param pClient Pointer to client instance structure. |
676 |
* @param pszQuery Command request line to be sent to server, |
677 |
* must be cr/lf and null terminated. |
678 |
* |
679 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
680 |
*/ |
681 |
lscp_status_t lscp_client_query ( lscp_client_t *pClient, const char *pszQuery ) |
682 |
{ |
683 |
lscp_status_t ret; |
684 |
|
685 |
if (pClient == NULL) |
686 |
return LSCP_FAILED; |
687 |
|
688 |
// Lock this section up. |
689 |
lscp_mutex_lock(pClient->mutex); |
690 |
|
691 |
// Just make the now guarded call. |
692 |
ret = lscp_client_call(pClient, pszQuery, 0); |
693 |
|
694 |
// Unlock this section down. |
695 |
lscp_mutex_unlock(pClient->mutex); |
696 |
|
697 |
return ret; |
698 |
} |
699 |
|
700 |
/** |
701 |
* Get the last received result string. In case of error or warning, |
702 |
* this is the text of the error or warning message issued. |
703 |
* |
704 |
* @param pClient Pointer to client instance structure. |
705 |
* |
706 |
* @returns A pointer to the literal null-terminated result string as |
707 |
* of the last command request. |
708 |
*/ |
709 |
const char *lscp_client_get_result ( lscp_client_t *pClient ) |
710 |
{ |
711 |
if (pClient == NULL) |
712 |
return NULL; |
713 |
|
714 |
return pClient->pszResult; |
715 |
} |
716 |
|
717 |
|
718 |
/** |
719 |
* Get the last error/warning number received. |
720 |
* |
721 |
* @param pClient Pointer to client instance structure. |
722 |
* |
723 |
* @returns The numerical value of the last error or warning |
724 |
* response code received. |
725 |
*/ |
726 |
int lscp_client_get_errno ( lscp_client_t *pClient ) |
727 |
{ |
728 |
if (pClient == NULL) |
729 |
return -1; |
730 |
|
731 |
return pClient->iErrno; |
732 |
} |
733 |
|
734 |
|
735 |
//------------------------------------------------------------------------- |
736 |
// Client registration protocol functions. |
737 |
|
738 |
/** |
739 |
* Register frontend for receiving event messages by the sampler backend. |
740 |
* @e Caution: since liblscp v0.5.5.4 you have to call lscp_client_subscribe() |
741 |
* for @e each event you want to subscribe. That is the old bitflag approach |
742 |
* was abondoned at this point. You can however still register all older |
743 |
* events with one lscp_client_subscribe() call at once. Thus, the old |
744 |
* behavior of this functions was not broken. Those older events are namely: |
745 |
* @code |
746 |
* SUBSCRIBE CHANNEL_COUNT | VOICE_COUNT | STREAM_COUNT |
747 |
* | BUFFER_FILL | CHANNEL_INFO | TOTAL_VOICE_COUNT |
748 |
* | AUDIO_OUTPUT_DEVICE_COUNT | AUDIO_OUTPUT_DEVICE_INFO |
749 |
* | MIDI_INPUT_DEVICE_COUNT | MIDI_INPUT_DEVICE_INFO |
750 |
* | MIDI_INSTRUMENT_MAP_COUNT | MIDI_INSTRUMENT_MAP_INFO |
751 |
* | MIDI_INSTRUMENT_COUNT | MIDI_INSTRUMENT_INFO |
752 |
* | MISCELLANEOUS |
753 |
* @endcode |
754 |
* The old events occupy the lower 16 bits (as bit flags), and all younger |
755 |
* events enumerate the whole upper 16 bits range. The new, enumerated |
756 |
* events are namely: |
757 |
* @code |
758 |
* SUBSCRIBE CHANNEL_MIDI |
759 |
* @endcode |
760 |
* |
761 |
* @param pClient Pointer to client instance structure. |
762 |
* @param events LSCP event to subscribe. |
763 |
* |
764 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
765 |
*/ |
766 |
lscp_status_t lscp_client_subscribe ( lscp_client_t *pClient, lscp_event_t events ) |
767 |
{ |
768 |
lscp_status_t ret = LSCP_OK; |
769 |
lscp_event_t currentEvent; |
770 |
|
771 |
if (pClient == NULL) |
772 |
return LSCP_FAILED; |
773 |
|
774 |
// Lock this section up. |
775 |
lscp_mutex_lock(pClient->mutex); |
776 |
|
777 |
// If applicable, start the alternate connection... |
778 |
if (pClient->events == LSCP_EVENT_NONE) |
779 |
ret = _lscp_client_evt_connect(pClient); |
780 |
|
781 |
// Send the subscription commands. |
782 |
if (ret == LSCP_OK && (events & LSCP_EVENT_CHANNEL_COUNT)) |
783 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_CHANNEL_COUNT); |
784 |
if (ret == LSCP_OK && (events & LSCP_EVENT_VOICE_COUNT)) |
785 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_VOICE_COUNT); |
786 |
if (ret == LSCP_OK && (events & LSCP_EVENT_STREAM_COUNT)) |
787 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_STREAM_COUNT); |
788 |
if (ret == LSCP_OK && (events & LSCP_EVENT_BUFFER_FILL)) |
789 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_BUFFER_FILL); |
790 |
if (ret == LSCP_OK && (events & LSCP_EVENT_CHANNEL_INFO)) |
791 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_CHANNEL_INFO); |
792 |
if (ret == LSCP_OK && (events & LSCP_EVENT_TOTAL_VOICE_COUNT)) |
793 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_TOTAL_VOICE_COUNT); |
794 |
if (ret == LSCP_OK && (events & LSCP_EVENT_AUDIO_OUTPUT_DEVICE_COUNT)) |
795 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_AUDIO_OUTPUT_DEVICE_COUNT); |
796 |
if (ret == LSCP_OK && (events & LSCP_EVENT_AUDIO_OUTPUT_DEVICE_INFO)) |
797 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_AUDIO_OUTPUT_DEVICE_INFO); |
798 |
if (ret == LSCP_OK && (events & LSCP_EVENT_MIDI_INPUT_DEVICE_COUNT)) |
799 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_MIDI_INPUT_DEVICE_COUNT); |
800 |
if (ret == LSCP_OK && (events & LSCP_EVENT_MIDI_INPUT_DEVICE_INFO)) |
801 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_MIDI_INPUT_DEVICE_INFO); |
802 |
if (ret == LSCP_OK && (events & LSCP_EVENT_MIDI_INSTRUMENT_MAP_COUNT)) |
803 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_MIDI_INSTRUMENT_MAP_COUNT); |
804 |
if (ret == LSCP_OK && (events & LSCP_EVENT_MIDI_INSTRUMENT_MAP_INFO)) |
805 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_MIDI_INSTRUMENT_MAP_INFO); |
806 |
if (ret == LSCP_OK && (events & LSCP_EVENT_MIDI_INSTRUMENT_COUNT)) |
807 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_MIDI_INSTRUMENT_COUNT); |
808 |
if (ret == LSCP_OK && (events & LSCP_EVENT_MIDI_INSTRUMENT_INFO)) |
809 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_MIDI_INSTRUMENT_INFO); |
810 |
if (ret == LSCP_OK && (events & LSCP_EVENT_MISCELLANEOUS)) |
811 |
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_MISCELLANEOUS); |
812 |
// Caution: for the upper 16 bits, we don't use bit flags anymore ... |
813 |
currentEvent = events & 0xffff0000; |
814 |
if (ret == LSCP_OK && currentEvent) { |
815 |
switch (currentEvent) { |
816 |
case LSCP_EVENT_CHANNEL_MIDI: |
817 |
case LSCP_EVENT_DEVICE_MIDI: |
818 |
ret = _lscp_client_evt_request(pClient, 1, currentEvent); |
819 |
break; |
820 |
default: // unknown "upper" event type |
821 |
ret = LSCP_FAILED; |
822 |
break; |
823 |
} |
824 |
} |
825 |
|
826 |
// Unlock this section down. |
827 |
lscp_mutex_unlock(pClient->mutex); |
828 |
|
829 |
return ret; |
830 |
} |
831 |
|
832 |
|
833 |
/** |
834 |
* Deregister frontend from receiving UDP event messages anymore. |
835 |
* @e Caution: since liblscp v0.5.5.4 you have to call |
836 |
* lscp_client_unsubscribe() for @e each event you want to unsubscribe. |
837 |
* That is the old bitflag approach was abondoned at this point. You can |
838 |
* however still register all older events with one lscp_client_subscribe() |
839 |
* call at once. Thus, the old behavior of this functions was not broken. |
840 |
* Those older events are namely: |
841 |
* @code |
842 |
* UNSUBSCRIBE CHANNEL_COUNT | VOICE_COUNT | STREAM_COUNT |
843 |
* | BUFFER_FILL | CHANNEL_INFO | TOTAL_VOICE_COUNT |
844 |
* | AUDIO_OUTPUT_DEVICE_COUNT | AUDIO_OUTPUT_DEVICE_INFO |
845 |
* | MIDI_INPUT_DEVICE_COUNT | MIDI_INPUT_DEVICE_INFO |
846 |
* | MIDI_INSTRUMENT_MAP_COUNT | MIDI_INSTRUMENT_MAP_INFO |
847 |
* | MIDI_INSTRUMENT_COUNT | MIDI_INSTRUMENT_INFO |
848 |
* | MISCELLANEOUS |
849 |
* @endcode |
850 |
* The old events occupy the lower 16 bits (as bit flags), and all younger |
851 |
* events enumerate the whole upper 16 bits range. The new, enumerated |
852 |
* events are namely: |
853 |
* @code |
854 |
* UNSUBSCRIBE CHANNEL_MIDI |
855 |
* @endcode |
856 |
* |
857 |
* @param pClient Pointer to client instance structure. |
858 |
* @param events LSCP event to unsubscribe. |
859 |
* |
860 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
861 |
*/ |
862 |
lscp_status_t lscp_client_unsubscribe ( lscp_client_t *pClient, lscp_event_t events ) |
863 |
{ |
864 |
lscp_status_t ret = LSCP_OK; |
865 |
lscp_event_t currentEvent; |
866 |
|
867 |
if (pClient == NULL) |
868 |
return LSCP_FAILED; |
869 |
|
870 |
// Lock this section up. |
871 |
lscp_mutex_lock(pClient->mutex); |
872 |
|
873 |
// Send the unsubscription commands. |
874 |
if (ret == LSCP_OK && (events & LSCP_EVENT_CHANNEL_COUNT)) |
875 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_CHANNEL_COUNT); |
876 |
if (ret == LSCP_OK && (events & LSCP_EVENT_VOICE_COUNT)) |
877 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_VOICE_COUNT); |
878 |
if (ret == LSCP_OK && (events & LSCP_EVENT_STREAM_COUNT)) |
879 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_STREAM_COUNT); |
880 |
if (ret == LSCP_OK && (events & LSCP_EVENT_BUFFER_FILL)) |
881 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_BUFFER_FILL); |
882 |
if (ret == LSCP_OK && (events & LSCP_EVENT_CHANNEL_INFO)) |
883 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_CHANNEL_INFO); |
884 |
if (ret == LSCP_OK && (events & LSCP_EVENT_TOTAL_VOICE_COUNT)) |
885 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_TOTAL_VOICE_COUNT); |
886 |
if (ret == LSCP_OK && (events & LSCP_EVENT_AUDIO_OUTPUT_DEVICE_COUNT)) |
887 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_AUDIO_OUTPUT_DEVICE_COUNT); |
888 |
if (ret == LSCP_OK && (events & LSCP_EVENT_AUDIO_OUTPUT_DEVICE_INFO)) |
889 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_AUDIO_OUTPUT_DEVICE_INFO); |
890 |
if (ret == LSCP_OK && (events & LSCP_EVENT_MIDI_INPUT_DEVICE_COUNT)) |
891 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_MIDI_INPUT_DEVICE_COUNT); |
892 |
if (ret == LSCP_OK && (events & LSCP_EVENT_MIDI_INPUT_DEVICE_INFO)) |
893 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_MIDI_INPUT_DEVICE_INFO); |
894 |
if (ret == LSCP_OK && (events & LSCP_EVENT_MIDI_INSTRUMENT_MAP_COUNT)) |
895 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_MIDI_INSTRUMENT_MAP_COUNT); |
896 |
if (ret == LSCP_OK && (events & LSCP_EVENT_MIDI_INSTRUMENT_MAP_INFO)) |
897 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_MIDI_INSTRUMENT_MAP_INFO); |
898 |
if (ret == LSCP_OK && (events & LSCP_EVENT_MIDI_INSTRUMENT_COUNT)) |
899 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_MIDI_INSTRUMENT_COUNT); |
900 |
if (ret == LSCP_OK && (events & LSCP_EVENT_MIDI_INSTRUMENT_INFO)) |
901 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_MIDI_INSTRUMENT_INFO); |
902 |
if (ret == LSCP_OK && (events & LSCP_EVENT_MISCELLANEOUS)) |
903 |
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_MISCELLANEOUS); |
904 |
// Caution: for the upper 16 bits, we don't use bit flags anymore ... |
905 |
currentEvent = events & 0xffff0000; |
906 |
if (ret == LSCP_OK && currentEvent) { |
907 |
switch (currentEvent) { |
908 |
case LSCP_EVENT_CHANNEL_MIDI: |
909 |
case LSCP_EVENT_DEVICE_MIDI: |
910 |
ret = _lscp_client_evt_request(pClient, 0, currentEvent); |
911 |
break; |
912 |
default: // unknown "upper" event type |
913 |
ret = LSCP_FAILED; |
914 |
break; |
915 |
} |
916 |
} |
917 |
|
918 |
// If necessary, close the alternate connection... |
919 |
if (pClient->events == LSCP_EVENT_NONE) |
920 |
lscp_socket_agent_free(&(pClient->evt)); |
921 |
|
922 |
// Unlock this section down. |
923 |
lscp_mutex_unlock(pClient->mutex); |
924 |
|
925 |
return ret; |
926 |
} |
927 |
|
928 |
|
929 |
/** |
930 |
* Getting current subscribed events. |
931 |
* |
932 |
* @param pClient Pointer to client instance structure. |
933 |
* |
934 |
* @returns The current subscrived bit-wise OR'ed event flags. |
935 |
*/ |
936 |
lscp_event_t lscp_client_get_events ( lscp_client_t *pClient ) |
937 |
{ |
938 |
if (pClient == NULL) |
939 |
return LSCP_EVENT_NONE; |
940 |
|
941 |
return pClient->events; |
942 |
} |
943 |
|
944 |
|
945 |
//------------------------------------------------------------------------- |
946 |
// Client command protocol functions. |
947 |
|
948 |
/** |
949 |
* Loading an instrument: |
950 |
* LOAD INSTRUMENT <filename> <instr-index> <sampler-channel> |
951 |
* |
952 |
* @param pClient Pointer to client instance structure. |
953 |
* @param pszFileName Instrument file name. |
954 |
* @param iInstrIndex Instrument index number. |
955 |
* @param iSamplerChannel Sampler Channel. |
956 |
* |
957 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
958 |
*/ |
959 |
lscp_status_t lscp_load_instrument ( lscp_client_t *pClient, |
960 |
const char *pszFileName, int iInstrIndex, int iSamplerChannel ) |
961 |
{ |
962 |
char szQuery[LSCP_BUFSIZ]; |
963 |
|
964 |
if (pszFileName == NULL || iSamplerChannel < 0) |
965 |
return LSCP_FAILED; |
966 |
|
967 |
sprintf(szQuery, "LOAD INSTRUMENT '%s' %d %d\r\n", |
968 |
pszFileName, iInstrIndex, iSamplerChannel); |
969 |
return lscp_client_query(pClient, szQuery); |
970 |
} |
971 |
|
972 |
|
973 |
/** |
974 |
* Loading an instrument in the background (non modal): |
975 |
* LOAD INSTRUMENT NON_MODAL <filename> <instr-index> <sampler-channel> |
976 |
* |
977 |
* @param pClient Pointer to client instance structure. |
978 |
* @param pszFileName Instrument file name. |
979 |
* @param iInstrIndex Instrument index number. |
980 |
* @param iSamplerChannel Sampler Channel. |
981 |
* |
982 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
983 |
*/ |
984 |
lscp_status_t lscp_load_instrument_non_modal ( lscp_client_t *pClient, |
985 |
const char *pszFileName, int iInstrIndex, int iSamplerChannel ) |
986 |
{ |
987 |
char szQuery[LSCP_BUFSIZ]; |
988 |
|
989 |
if (pszFileName == NULL || iSamplerChannel < 0) |
990 |
return LSCP_FAILED; |
991 |
|
992 |
sprintf(szQuery, "LOAD INSTRUMENT NON_MODAL '%s' %d %d\r\n", |
993 |
pszFileName, iInstrIndex, iSamplerChannel); |
994 |
return lscp_client_query(pClient, szQuery); |
995 |
} |
996 |
|
997 |
|
998 |
/** |
999 |
* Loading a sampler engine: |
1000 |
* LOAD ENGINE <engine-name> <sampler-channel> |
1001 |
* |
1002 |
* @param pClient Pointer to client instance structure. |
1003 |
* @param pszEngineName Engine name. |
1004 |
* @param iSamplerChannel Sampler channel number. |
1005 |
* |
1006 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1007 |
*/ |
1008 |
lscp_status_t lscp_load_engine ( lscp_client_t *pClient, const char *pszEngineName, int iSamplerChannel ) |
1009 |
{ |
1010 |
char szQuery[LSCP_BUFSIZ]; |
1011 |
|
1012 |
if (pszEngineName == NULL || iSamplerChannel < 0) |
1013 |
return LSCP_FAILED; |
1014 |
|
1015 |
sprintf(szQuery, "LOAD ENGINE %s %d\r\n", |
1016 |
pszEngineName, iSamplerChannel); |
1017 |
return lscp_client_query(pClient, szQuery); |
1018 |
} |
1019 |
|
1020 |
|
1021 |
/** |
1022 |
* Current number of sampler channels: |
1023 |
* GET CHANNELS |
1024 |
* |
1025 |
* @param pClient Pointer to client instance structure. |
1026 |
* |
1027 |
* @returns The current total number of sampler channels on success, |
1028 |
* -1 otherwise. |
1029 |
*/ |
1030 |
int lscp_get_channels ( lscp_client_t *pClient ) |
1031 |
{ |
1032 |
int iChannels = -1; |
1033 |
|
1034 |
if (pClient == NULL) |
1035 |
return -1; |
1036 |
|
1037 |
// Lock this section up. |
1038 |
lscp_mutex_lock(pClient->mutex); |
1039 |
|
1040 |
if (lscp_client_call(pClient, "GET CHANNELS\r\n", 0) == LSCP_OK) |
1041 |
iChannels = atoi(lscp_client_get_result(pClient)); |
1042 |
|
1043 |
// Unlock this section doen. |
1044 |
lscp_mutex_unlock(pClient->mutex); |
1045 |
|
1046 |
return iChannels; |
1047 |
} |
1048 |
|
1049 |
|
1050 |
/** |
1051 |
* List current sampler channels number identifiers: |
1052 |
* LIST CHANNELS |
1053 |
* |
1054 |
* @param pClient Pointer to client instance structure. |
1055 |
* |
1056 |
* @returns An array of the sampler channels identifiers as positive integers, |
1057 |
* terminated with -1 on success, NULL otherwise. |
1058 |
*/ |
1059 |
int *lscp_list_channels ( lscp_client_t *pClient ) |
1060 |
{ |
1061 |
const char *pszSeps = ","; |
1062 |
|
1063 |
if (pClient == NULL) |
1064 |
return NULL; |
1065 |
|
1066 |
// Lock this section up. |
1067 |
lscp_mutex_lock(pClient->mutex); |
1068 |
|
1069 |
if (pClient->channels) { |
1070 |
lscp_isplit_destroy(pClient->channels); |
1071 |
pClient->channels = NULL; |
1072 |
} |
1073 |
|
1074 |
if (lscp_client_call(pClient, "LIST CHANNELS\r\n", 0) == LSCP_OK) |
1075 |
pClient->channels = lscp_isplit_create(lscp_client_get_result(pClient), pszSeps); |
1076 |
|
1077 |
// Unlock this section down. |
1078 |
lscp_mutex_unlock(pClient->mutex); |
1079 |
|
1080 |
return pClient->channels; |
1081 |
} |
1082 |
|
1083 |
|
1084 |
/** |
1085 |
* Adding a new sampler channel: |
1086 |
* ADD CHANNEL |
1087 |
* |
1088 |
* @param pClient Pointer to client instance structure. |
1089 |
* |
1090 |
* @returns The new sampler channel number identifier, |
1091 |
* or -1 in case of failure. |
1092 |
*/ |
1093 |
int lscp_add_channel ( lscp_client_t *pClient ) |
1094 |
{ |
1095 |
int iSamplerChannel = -1; |
1096 |
|
1097 |
if (pClient == NULL) |
1098 |
return -1; |
1099 |
|
1100 |
// Lock this section up. |
1101 |
lscp_mutex_lock(pClient->mutex); |
1102 |
|
1103 |
if (lscp_client_call(pClient, "ADD CHANNEL\r\n", 0) == LSCP_OK) |
1104 |
iSamplerChannel = atoi(lscp_client_get_result(pClient)); |
1105 |
|
1106 |
// Unlock this section down. |
1107 |
lscp_mutex_unlock(pClient->mutex); |
1108 |
|
1109 |
return iSamplerChannel; |
1110 |
} |
1111 |
|
1112 |
|
1113 |
/** |
1114 |
* Removing a sampler channel: |
1115 |
* REMOVE CHANNEL <sampler-channel> |
1116 |
* |
1117 |
* @param pClient Pointer to client instance structure. |
1118 |
* @param iSamplerChannel Sampler channel number. |
1119 |
* |
1120 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1121 |
*/ |
1122 |
lscp_status_t lscp_remove_channel ( lscp_client_t *pClient, int iSamplerChannel ) |
1123 |
{ |
1124 |
char szQuery[LSCP_BUFSIZ]; |
1125 |
|
1126 |
if (iSamplerChannel < 0) |
1127 |
return LSCP_FAILED; |
1128 |
|
1129 |
sprintf(szQuery, "REMOVE CHANNEL %d\r\n", iSamplerChannel); |
1130 |
return lscp_client_query(pClient, szQuery); |
1131 |
} |
1132 |
|
1133 |
|
1134 |
/** |
1135 |
* Getting all available engines count: |
1136 |
* GET AVAILABLE_ENGINES |
1137 |
* |
1138 |
* @param pClient Pointer to client instance structure. |
1139 |
* |
1140 |
* @returns The current total number of sampler engines on success, |
1141 |
* -1 otherwise. |
1142 |
*/ |
1143 |
int lscp_get_available_engines ( lscp_client_t *pClient ) |
1144 |
{ |
1145 |
int iAvailableEngines = -1; |
1146 |
|
1147 |
if (pClient == NULL) |
1148 |
return -1; |
1149 |
|
1150 |
// Lock this section up. |
1151 |
lscp_mutex_lock(pClient->mutex); |
1152 |
|
1153 |
if (lscp_client_call(pClient, "GET AVAILABLE_ENGINES\r\n", 0) == LSCP_OK) |
1154 |
iAvailableEngines = atoi(lscp_client_get_result(pClient)); |
1155 |
|
1156 |
// Unlock this section down. |
1157 |
lscp_mutex_unlock(pClient->mutex); |
1158 |
|
1159 |
return iAvailableEngines; |
1160 |
} |
1161 |
|
1162 |
|
1163 |
/** |
1164 |
* Getting all available engines: |
1165 |
* LIST AVAILABLE_ENGINES |
1166 |
* |
1167 |
* @param pClient Pointer to client instance structure. |
1168 |
* |
1169 |
* @returns A NULL terminated array of engine name strings, |
1170 |
* or NULL in case of failure. |
1171 |
*/ |
1172 |
const char **lscp_list_available_engines ( lscp_client_t *pClient ) |
1173 |
{ |
1174 |
const char *pszSeps = ","; |
1175 |
|
1176 |
if (pClient == NULL) |
1177 |
return NULL; |
1178 |
|
1179 |
// Lock this section up. |
1180 |
lscp_mutex_lock(pClient->mutex); |
1181 |
|
1182 |
if (pClient->engines) { |
1183 |
lscp_szsplit_destroy(pClient->engines); |
1184 |
pClient->engines = NULL; |
1185 |
} |
1186 |
|
1187 |
if (lscp_client_call(pClient, "LIST AVAILABLE_ENGINES\r\n", 0) == LSCP_OK) |
1188 |
pClient->engines = lscp_szsplit_create(lscp_client_get_result(pClient), pszSeps); |
1189 |
|
1190 |
// Unlock this section down. |
1191 |
lscp_mutex_unlock(pClient->mutex); |
1192 |
|
1193 |
return (const char **) pClient->engines; |
1194 |
} |
1195 |
|
1196 |
|
1197 |
/** |
1198 |
* Getting information about an engine. |
1199 |
* GET ENGINE INFO <engine-name> |
1200 |
* |
1201 |
* @param pClient Pointer to client instance structure. |
1202 |
* @param pszEngineName Engine name. |
1203 |
* |
1204 |
* @returns A pointer to a @ref lscp_engine_info_t structure, with all the |
1205 |
* information of the given sampler engine, or NULL in case of failure. |
1206 |
*/ |
1207 |
lscp_engine_info_t *lscp_get_engine_info ( lscp_client_t *pClient, |
1208 |
const char *pszEngineName ) |
1209 |
{ |
1210 |
lscp_engine_info_t *pEngineInfo; |
1211 |
char szQuery[LSCP_BUFSIZ]; |
1212 |
const char *pszResult; |
1213 |
const char *pszSeps = ":"; |
1214 |
const char *pszCrlf = "\r\n"; |
1215 |
char *pszToken; |
1216 |
char *pch; |
1217 |
|
1218 |
if (pClient == NULL) |
1219 |
return NULL; |
1220 |
if (pszEngineName == NULL) |
1221 |
return NULL; |
1222 |
|
1223 |
// Lock this section up. |
1224 |
lscp_mutex_lock(pClient->mutex); |
1225 |
|
1226 |
pEngineInfo = &(pClient->engine_info); |
1227 |
lscp_engine_info_reset(pEngineInfo); |
1228 |
|
1229 |
sprintf(szQuery, "GET ENGINE INFO %s\r\n", pszEngineName); |
1230 |
if (lscp_client_call(pClient, szQuery, 1) == LSCP_OK) { |
1231 |
pszResult = lscp_client_get_result(pClient); |
1232 |
pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
1233 |
while (pszToken) { |
1234 |
if (strcasecmp(pszToken, "DESCRIPTION") == 0) { |
1235 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1236 |
if (pszToken) |
1237 |
lscp_unquote_dup(&(pEngineInfo->description), &pszToken); |
1238 |
} |
1239 |
else if (strcasecmp(pszToken, "VERSION") == 0) { |
1240 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1241 |
if (pszToken) |
1242 |
lscp_unquote_dup(&(pEngineInfo->version), &pszToken); |
1243 |
} |
1244 |
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
1245 |
} |
1246 |
} |
1247 |
else pEngineInfo = NULL; |
1248 |
|
1249 |
// Unlock this section down. |
1250 |
lscp_mutex_unlock(pClient->mutex); |
1251 |
|
1252 |
return pEngineInfo; |
1253 |
} |
1254 |
|
1255 |
|
1256 |
/** |
1257 |
* Getting sampler channel informations: |
1258 |
* GET CHANNEL INFO <sampler-channel> |
1259 |
* |
1260 |
* @param pClient Pointer to client instance structure. |
1261 |
* @param iSamplerChannel Sampler channel number. |
1262 |
* |
1263 |
* @returns A pointer to a @ref lscp_channel_info_t structure, with all the |
1264 |
* information of the given sampler channel, or NULL in case of failure. |
1265 |
*/ |
1266 |
lscp_channel_info_t *lscp_get_channel_info ( lscp_client_t *pClient, int iSamplerChannel ) |
1267 |
{ |
1268 |
lscp_channel_info_t *pChannelInfo; |
1269 |
char szQuery[LSCP_BUFSIZ]; |
1270 |
const char *pszResult; |
1271 |
const char *pszSeps = ":"; |
1272 |
const char *pszCrlf = "\r\n"; |
1273 |
char *pszToken; |
1274 |
char *pch; |
1275 |
struct _locale_t locale; |
1276 |
|
1277 |
if (pClient == NULL) |
1278 |
return NULL; |
1279 |
if (iSamplerChannel < 0) |
1280 |
return NULL; |
1281 |
|
1282 |
// Lock this section up. |
1283 |
lscp_mutex_lock(pClient->mutex); |
1284 |
|
1285 |
pChannelInfo = &(pClient->channel_info); |
1286 |
lscp_channel_info_reset(pChannelInfo); |
1287 |
|
1288 |
_save_and_set_c_locale(&locale); |
1289 |
|
1290 |
sprintf(szQuery, "GET CHANNEL INFO %d\r\n", iSamplerChannel); |
1291 |
if (lscp_client_call(pClient, szQuery, 1) == LSCP_OK) { |
1292 |
pszResult = lscp_client_get_result(pClient); |
1293 |
pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
1294 |
while (pszToken) { |
1295 |
if (strcasecmp(pszToken, "ENGINE_NAME") == 0) { |
1296 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1297 |
if (pszToken) |
1298 |
lscp_unquote_dup(&(pChannelInfo->engine_name), &pszToken); |
1299 |
} |
1300 |
else if (strcasecmp(pszToken, "AUDIO_OUTPUT_DEVICE") == 0) { |
1301 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1302 |
if (pszToken) |
1303 |
pChannelInfo->audio_device = atoi(lscp_ltrim(pszToken)); |
1304 |
} |
1305 |
else if (strcasecmp(pszToken, "AUDIO_OUTPUT_CHANNELS") == 0) { |
1306 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1307 |
if (pszToken) |
1308 |
pChannelInfo->audio_channels = atoi(lscp_ltrim(pszToken)); |
1309 |
} |
1310 |
else if (strcasecmp(pszToken, "AUDIO_OUTPUT_ROUTING") == 0) { |
1311 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1312 |
if (pszToken) { |
1313 |
if (pChannelInfo->audio_routing) |
1314 |
lscp_isplit_destroy(pChannelInfo->audio_routing); |
1315 |
pChannelInfo->audio_routing = lscp_isplit_create(pszToken, ","); |
1316 |
} |
1317 |
} |
1318 |
else if (strcasecmp(pszToken, "INSTRUMENT_FILE") == 0) { |
1319 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1320 |
if (pszToken) |
1321 |
lscp_unquote_dup(&(pChannelInfo->instrument_file), &pszToken); |
1322 |
} |
1323 |
else if (strcasecmp(pszToken, "INSTRUMENT_NR") == 0) { |
1324 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1325 |
if (pszToken) |
1326 |
pChannelInfo->instrument_nr = atoi(lscp_ltrim(pszToken)); |
1327 |
} |
1328 |
else if (strcasecmp(pszToken, "INSTRUMENT_NAME") == 0) { |
1329 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1330 |
if (pszToken) |
1331 |
lscp_unquote_dup(&(pChannelInfo->instrument_name), &pszToken); |
1332 |
} |
1333 |
else if (strcasecmp(pszToken, "INSTRUMENT_STATUS") == 0) { |
1334 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1335 |
if (pszToken) |
1336 |
pChannelInfo->instrument_status = atoi(lscp_ltrim(pszToken)); |
1337 |
} |
1338 |
else if (strcasecmp(pszToken, "MIDI_INPUT_DEVICE") == 0) { |
1339 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1340 |
if (pszToken) |
1341 |
pChannelInfo->midi_device = atoi(lscp_ltrim(pszToken)); |
1342 |
} |
1343 |
else if (strcasecmp(pszToken, "MIDI_INPUT_PORT") == 0) { |
1344 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1345 |
if (pszToken) |
1346 |
pChannelInfo->midi_port = atoi(lscp_ltrim(pszToken)); |
1347 |
} |
1348 |
else if (strcasecmp(pszToken, "MIDI_INPUT_CHANNEL") == 0) { |
1349 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1350 |
if (pszToken) { |
1351 |
pszToken = lscp_ltrim(pszToken); |
1352 |
if (strcasecmp(pszToken, "ALL") == 0) |
1353 |
pChannelInfo->midi_channel = LSCP_MIDI_CHANNEL_ALL; |
1354 |
else |
1355 |
pChannelInfo->midi_channel = atoi(pszToken); |
1356 |
} |
1357 |
} |
1358 |
else if (strcasecmp(pszToken, "MIDI_INSTRUMENT_MAP") == 0) { |
1359 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1360 |
if (pszToken) { |
1361 |
pszToken = lscp_ltrim(pszToken); |
1362 |
if (strcasecmp(pszToken, "NONE") == 0) |
1363 |
pChannelInfo->midi_map = LSCP_MIDI_MAP_NONE; |
1364 |
else |
1365 |
if (strcasecmp(pszToken, "DEFAULT") == 0) |
1366 |
pChannelInfo->midi_map = LSCP_MIDI_MAP_DEFAULT; |
1367 |
else |
1368 |
pChannelInfo->midi_map = atoi(pszToken); |
1369 |
} |
1370 |
} |
1371 |
else if (strcasecmp(pszToken, "VOLUME") == 0) { |
1372 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1373 |
if (pszToken) |
1374 |
pChannelInfo->volume = _atof(lscp_ltrim(pszToken)); |
1375 |
} |
1376 |
else if (strcasecmp(pszToken, "MUTE") == 0) { |
1377 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1378 |
if (pszToken) |
1379 |
pChannelInfo->mute = (strcasecmp(lscp_unquote(&pszToken, 0), "TRUE") == 0); |
1380 |
} |
1381 |
else if (strcasecmp(pszToken, "SOLO") == 0) { |
1382 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1383 |
if (pszToken) |
1384 |
pChannelInfo->solo = (strcasecmp(lscp_unquote(&pszToken, 0), "TRUE") == 0); |
1385 |
} |
1386 |
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
1387 |
} |
1388 |
} |
1389 |
else pChannelInfo = NULL; |
1390 |
|
1391 |
_restore_locale(&locale); |
1392 |
|
1393 |
// Unlock this section up. |
1394 |
lscp_mutex_unlock(pClient->mutex); |
1395 |
|
1396 |
return pChannelInfo; |
1397 |
} |
1398 |
|
1399 |
|
1400 |
/** |
1401 |
* Current number of active voices: |
1402 |
* GET CHANNEL VOICE_COUNT <sampler-channel> |
1403 |
* |
1404 |
* @param pClient Pointer to client instance structure. |
1405 |
* @param iSamplerChannel Sampler channel number. |
1406 |
* |
1407 |
* @returns The number of voices currently active, -1 in case of failure. |
1408 |
*/ |
1409 |
int lscp_get_channel_voice_count ( lscp_client_t *pClient, int iSamplerChannel ) |
1410 |
{ |
1411 |
char szQuery[LSCP_BUFSIZ]; |
1412 |
int iVoiceCount = -1; |
1413 |
|
1414 |
if (pClient == NULL) |
1415 |
return -1; |
1416 |
if (iSamplerChannel < 0) |
1417 |
return -1; |
1418 |
|
1419 |
// Lock this section up. |
1420 |
lscp_mutex_lock(pClient->mutex); |
1421 |
|
1422 |
sprintf(szQuery, "GET CHANNEL VOICE_COUNT %d\r\n", iSamplerChannel); |
1423 |
if (lscp_client_call(pClient, szQuery, 0) == LSCP_OK) |
1424 |
iVoiceCount = atoi(lscp_client_get_result(pClient)); |
1425 |
|
1426 |
// Unlock this section down. |
1427 |
lscp_mutex_unlock(pClient->mutex); |
1428 |
|
1429 |
return iVoiceCount; |
1430 |
} |
1431 |
|
1432 |
|
1433 |
/** |
1434 |
* Current number of active disk streams: |
1435 |
* GET CHANNEL STREAM_COUNT <sampler-channel> |
1436 |
* |
1437 |
* @param pClient Pointer to client instance structure. |
1438 |
* @param iSamplerChannel Sampler channel number. |
1439 |
* |
1440 |
* @returns The number of active disk streams on success, -1 otherwise. |
1441 |
*/ |
1442 |
int lscp_get_channel_stream_count ( lscp_client_t *pClient, int iSamplerChannel ) |
1443 |
{ |
1444 |
char szQuery[LSCP_BUFSIZ]; |
1445 |
int iStreamCount = -1; |
1446 |
|
1447 |
if (pClient == NULL) |
1448 |
return -1; |
1449 |
if (iSamplerChannel < 0) |
1450 |
return -1; |
1451 |
|
1452 |
// Lock this section up. |
1453 |
lscp_mutex_lock(pClient->mutex); |
1454 |
|
1455 |
sprintf(szQuery, "GET CHANNEL STREAM_COUNT %d\r\n", iSamplerChannel); |
1456 |
if (lscp_client_call(pClient, szQuery, 0) == LSCP_OK) |
1457 |
iStreamCount = atoi(lscp_client_get_result(pClient)); |
1458 |
|
1459 |
// Unlock this section down. |
1460 |
lscp_mutex_unlock(pClient->mutex); |
1461 |
|
1462 |
return iStreamCount; |
1463 |
} |
1464 |
|
1465 |
|
1466 |
/** |
1467 |
* Current least usage of active disk streams. |
1468 |
* |
1469 |
* @param pClient Pointer to client instance structure. |
1470 |
* @param iSamplerChannel Sampler channel number. |
1471 |
* |
1472 |
* @returns The usage percentage of the least filled active disk stream |
1473 |
* on success, -1 otherwise. |
1474 |
*/ |
1475 |
int lscp_get_channel_stream_usage ( lscp_client_t *pClient, int iSamplerChannel ) |
1476 |
{ |
1477 |
char szQuery[LSCP_BUFSIZ]; |
1478 |
int iStreamUsage = -1; |
1479 |
const char *pszResult; |
1480 |
const char *pszSeps = "[]%,"; |
1481 |
char *pszToken; |
1482 |
char *pch; |
1483 |
int iStream; |
1484 |
int iPercent; |
1485 |
|
1486 |
if (pClient == NULL) |
1487 |
return -1; |
1488 |
if (iSamplerChannel < 0) |
1489 |
return -1; |
1490 |
|
1491 |
// Lock this section up. |
1492 |
lscp_mutex_lock(pClient->mutex); |
1493 |
|
1494 |
iStream = 0; |
1495 |
sprintf(szQuery, "GET CHANNEL BUFFER_FILL PERCENTAGE %d\r\n", iSamplerChannel); |
1496 |
if (lscp_client_call(pClient, szQuery, 0) == LSCP_OK) { |
1497 |
pszResult = lscp_client_get_result(pClient); |
1498 |
pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
1499 |
while (pszToken) { |
1500 |
if (*pszToken) { |
1501 |
// Skip stream id. |
1502 |
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
1503 |
if (pszToken == NULL) |
1504 |
break; |
1505 |
// Get least buffer fill percentage. |
1506 |
iPercent = atol(pszToken); |
1507 |
if (iStreamUsage > iPercent || iStream == 0) |
1508 |
iStreamUsage = iPercent; |
1509 |
iStream++; |
1510 |
} |
1511 |
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
1512 |
} |
1513 |
} |
1514 |
|
1515 |
// Unlock this section down. |
1516 |
lscp_mutex_unlock(pClient->mutex); |
1517 |
|
1518 |
return iStreamUsage; |
1519 |
} |
1520 |
|
1521 |
|
1522 |
/** |
1523 |
* Current fill state of disk stream buffers: |
1524 |
* GET CHANNEL BUFFER_FILL {BYTES|PERCENTAGE} <sampler-channel> |
1525 |
* |
1526 |
* @param pClient Pointer to client instance structure. |
1527 |
* @param usage_type Usage type to be returned, either |
1528 |
* @ref LSCP_USAGE_BYTES, or |
1529 |
* @ref LSCP_USAGE_PERCENTAGE. |
1530 |
* @param iSamplerChannel Sampler channel number. |
1531 |
* |
1532 |
* @returns A pointer to a @ref lscp_buffer_fill_t structure, with the |
1533 |
* information of the current disk stream buffer fill usage, for the given |
1534 |
* sampler channel, or NULL in case of failure. |
1535 |
*/ |
1536 |
lscp_buffer_fill_t *lscp_get_channel_buffer_fill ( lscp_client_t *pClient, |
1537 |
lscp_usage_t usage_type, int iSamplerChannel ) |
1538 |
{ |
1539 |
lscp_buffer_fill_t *pBufferFill; |
1540 |
char szQuery[LSCP_BUFSIZ]; |
1541 |
int iStreamCount; |
1542 |
const char *pszUsageType = (usage_type == LSCP_USAGE_BYTES ? "BYTES" : "PERCENTAGE"); |
1543 |
const char *pszResult; |
1544 |
const char *pszSeps = "[]%,"; |
1545 |
char *pszToken; |
1546 |
char *pch; |
1547 |
int iStream; |
1548 |
|
1549 |
// Retrieve a channel stream estimation. |
1550 |
iStreamCount = lscp_get_channel_stream_count(pClient, iSamplerChannel); |
1551 |
if (iStreamCount < 0) |
1552 |
return NULL; |
1553 |
|
1554 |
// Lock this section up. |
1555 |
lscp_mutex_lock(pClient->mutex); |
1556 |
|
1557 |
// Check if we need to reallocate the stream usage array. |
1558 |
if (pClient->iStreamCount != iStreamCount) { |
1559 |
if (pClient->buffer_fill) |
1560 |
free(pClient->buffer_fill); |
1561 |
if (iStreamCount > 0) |
1562 |
pClient->buffer_fill = (lscp_buffer_fill_t *) malloc(iStreamCount * sizeof(lscp_buffer_fill_t)); |
1563 |
else |
1564 |
pClient->buffer_fill = NULL; |
1565 |
pClient->iStreamCount = iStreamCount; |
1566 |
} |
1567 |
|
1568 |
// Get buffer fill usage... |
1569 |
pBufferFill = pClient->buffer_fill; |
1570 |
if (pBufferFill && iStreamCount > 0) { |
1571 |
iStream = 0; |
1572 |
pBufferFill = pClient->buffer_fill; |
1573 |
sprintf(szQuery, "GET CHANNEL BUFFER_FILL %s %d\r\n", pszUsageType, iSamplerChannel); |
1574 |
if (lscp_client_call(pClient, szQuery, 0) == LSCP_OK) { |
1575 |
pszResult = lscp_client_get_result(pClient); |
1576 |
pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
1577 |
while (pszToken && iStream < pClient->iStreamCount) { |
1578 |
if (*pszToken) { |
1579 |
pBufferFill[iStream].stream_id = atol(pszToken); |
1580 |
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
1581 |
if (pszToken == NULL) |
1582 |
break; |
1583 |
pBufferFill[iStream].stream_usage = atol(pszToken); |
1584 |
iStream++; |
1585 |
} |
1586 |
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
1587 |
} |
1588 |
} // Reset the usage, whatever it was before. |
1589 |
else while (iStream < pClient->iStreamCount) |
1590 |
pBufferFill[iStream++].stream_usage = 0; |
1591 |
} |
1592 |
|
1593 |
// Unlock this section down. |
1594 |
lscp_mutex_unlock(pClient->mutex); |
1595 |
|
1596 |
return pBufferFill; |
1597 |
} |
1598 |
|
1599 |
|
1600 |
/** |
1601 |
* Setting audio output type: |
1602 |
* SET CHANNEL AUDIO_OUTPUT_TYPE <sampler-channel> <audio-output-type> |
1603 |
* |
1604 |
* @param pClient Pointer to client instance structure. |
1605 |
* @param iSamplerChannel Sampler channel number. |
1606 |
* @param pszAudioDriver Audio output driver type (e.g. "ALSA" or "JACK"). |
1607 |
* |
1608 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1609 |
*/ |
1610 |
lscp_status_t lscp_set_channel_audio_type ( lscp_client_t *pClient, |
1611 |
int iSamplerChannel, const char *pszAudioDriver ) |
1612 |
{ |
1613 |
char szQuery[LSCP_BUFSIZ]; |
1614 |
|
1615 |
if (iSamplerChannel < 0 || pszAudioDriver == NULL) |
1616 |
return LSCP_FAILED; |
1617 |
|
1618 |
sprintf(szQuery, "SET CHANNEL AUDIO_OUTPUT_TYPE %d %s\r\n", |
1619 |
iSamplerChannel, pszAudioDriver); |
1620 |
return lscp_client_query(pClient, szQuery); |
1621 |
} |
1622 |
|
1623 |
|
1624 |
/** |
1625 |
* Setting audio output device: |
1626 |
* SET CHANNEL AUDIO_OUTPUT_DEVICE <sampler-channel> <device-id> |
1627 |
* |
1628 |
* @param pClient Pointer to client instance structure. |
1629 |
* @param iSamplerChannel Sampler channel number. |
1630 |
* @param iAudioDevice Audio output device number identifier. |
1631 |
* |
1632 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1633 |
*/ |
1634 |
lscp_status_t lscp_set_channel_audio_device ( lscp_client_t *pClient, |
1635 |
int iSamplerChannel, int iAudioDevice ) |
1636 |
{ |
1637 |
char szQuery[LSCP_BUFSIZ]; |
1638 |
|
1639 |
if (iSamplerChannel < 0 || iAudioDevice < 0) |
1640 |
return LSCP_FAILED; |
1641 |
|
1642 |
sprintf(szQuery, "SET CHANNEL AUDIO_OUTPUT_DEVICE %d %d\r\n", |
1643 |
iSamplerChannel, iAudioDevice); |
1644 |
return lscp_client_query(pClient, szQuery); |
1645 |
} |
1646 |
|
1647 |
|
1648 |
/** |
1649 |
* Setting audio output channel: |
1650 |
* SET CHANNEL AUDIO_OUTPUT_CHANNEL <sampler-channel> <audio-output-chan> <audio-input-chan> |
1651 |
* |
1652 |
* @param pClient Pointer to client instance structure. |
1653 |
* @param iSamplerChannel Sampler channel number. |
1654 |
* @param iAudioOut Audio output device channel to be routed from. |
1655 |
* @param iAudioIn Audio output device channel to be routed into. |
1656 |
* |
1657 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1658 |
*/ |
1659 |
lscp_status_t lscp_set_channel_audio_channel ( lscp_client_t *pClient, |
1660 |
int iSamplerChannel, int iAudioOut, int iAudioIn ) |
1661 |
{ |
1662 |
char szQuery[LSCP_BUFSIZ]; |
1663 |
|
1664 |
if (iSamplerChannel < 0 || iAudioOut < 0 || iAudioIn < 0) |
1665 |
return LSCP_FAILED; |
1666 |
|
1667 |
sprintf(szQuery, "SET CHANNEL AUDIO_OUTPUT_CHANNEL %d %d %d\r\n", |
1668 |
iSamplerChannel, iAudioOut, iAudioIn); |
1669 |
return lscp_client_query(pClient, szQuery); |
1670 |
} |
1671 |
|
1672 |
|
1673 |
/** |
1674 |
* Setting MIDI input type: |
1675 |
* SET CHANNEL MIDI_INPUT_TYPE <sampler-channel> <midi-input-type> |
1676 |
* |
1677 |
* @param pClient Pointer to client instance structure. |
1678 |
* @param iSamplerChannel Sampler channel number. |
1679 |
* @param pszMidiDriver MIDI input driver type (e.g. "ALSA"). |
1680 |
* |
1681 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1682 |
*/ |
1683 |
lscp_status_t lscp_set_channel_midi_type ( lscp_client_t *pClient, |
1684 |
int iSamplerChannel, const char *pszMidiDriver ) |
1685 |
{ |
1686 |
char szQuery[LSCP_BUFSIZ]; |
1687 |
|
1688 |
if (iSamplerChannel < 0 || pszMidiDriver == NULL) |
1689 |
return LSCP_FAILED; |
1690 |
|
1691 |
sprintf(szQuery, "SET CHANNEL MIDI_INPUT_TYPE %d %s\r\n", |
1692 |
iSamplerChannel, pszMidiDriver); |
1693 |
return lscp_client_query(pClient, szQuery); |
1694 |
} |
1695 |
|
1696 |
|
1697 |
/** |
1698 |
* Setting MIDI input device: |
1699 |
* SET CHANNEL MIDI_INPUT_DEVICE <sampler-channel> <device-id> |
1700 |
* |
1701 |
* @param pClient Pointer to client instance structure. |
1702 |
* @param iSamplerChannel Sampler channel number. |
1703 |
* @param iMidiDevice MIDI input device number identifier. |
1704 |
* |
1705 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1706 |
*/ |
1707 |
lscp_status_t lscp_set_channel_midi_device ( lscp_client_t *pClient, |
1708 |
int iSamplerChannel, int iMidiDevice ) |
1709 |
{ |
1710 |
char szQuery[LSCP_BUFSIZ]; |
1711 |
|
1712 |
if (iSamplerChannel < 0 || iMidiDevice < 0) |
1713 |
return LSCP_FAILED; |
1714 |
|
1715 |
sprintf(szQuery, "SET CHANNEL MIDI_INPUT_DEVICE %d %d\r\n", |
1716 |
iSamplerChannel, iMidiDevice); |
1717 |
return lscp_client_query(pClient, szQuery); |
1718 |
} |
1719 |
|
1720 |
|
1721 |
/** |
1722 |
* Setting MIDI input port: |
1723 |
* SET CHANNEL MIDI_INPUT_PORT <sampler-channel> <midi-input-port> |
1724 |
* |
1725 |
* @param pClient Pointer to client instance structure. |
1726 |
* @param iSamplerChannel Sampler channel number. |
1727 |
* @param iMidiPort MIDI input driver virtual port number. |
1728 |
* |
1729 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1730 |
*/ |
1731 |
lscp_status_t lscp_set_channel_midi_port ( lscp_client_t *pClient, |
1732 |
int iSamplerChannel, int iMidiPort ) |
1733 |
{ |
1734 |
char szQuery[LSCP_BUFSIZ]; |
1735 |
|
1736 |
if (iSamplerChannel < 0 || iMidiPort < 0) |
1737 |
return LSCP_FAILED; |
1738 |
|
1739 |
sprintf(szQuery, "SET CHANNEL MIDI_INPUT_PORT %d %d\r\n", |
1740 |
iSamplerChannel, iMidiPort); |
1741 |
return lscp_client_query(pClient, szQuery); |
1742 |
} |
1743 |
|
1744 |
|
1745 |
/** |
1746 |
* Setting MIDI input channel: |
1747 |
* SET CHANNEL MIDI_INPUT_CHANNEL <sampler-channel> <midi-input-chan> |
1748 |
* |
1749 |
* @param pClient Pointer to client instance structure. |
1750 |
* @param iSamplerChannel Sampler channel number. |
1751 |
* @param iMidiChannel MIDI channel address number to listen (0-15) or |
1752 |
* @ref LSCP_MIDI_CHANNEL_ALL (16) to listen on all channels. |
1753 |
* |
1754 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1755 |
*/ |
1756 |
lscp_status_t lscp_set_channel_midi_channel ( lscp_client_t *pClient, |
1757 |
int iSamplerChannel, int iMidiChannel ) |
1758 |
{ |
1759 |
char szQuery[LSCP_BUFSIZ]; |
1760 |
|
1761 |
if (iSamplerChannel < 0 || iMidiChannel < 0 || iMidiChannel > 16) |
1762 |
return LSCP_FAILED; |
1763 |
|
1764 |
if (iMidiChannel == LSCP_MIDI_CHANNEL_ALL) |
1765 |
sprintf(szQuery, "SET CHANNEL MIDI_INPUT_CHANNEL %d ALL\r\n", |
1766 |
iSamplerChannel); |
1767 |
else |
1768 |
sprintf(szQuery, "SET CHANNEL MIDI_INPUT_CHANNEL %d %d\r\n", |
1769 |
iSamplerChannel, iMidiChannel); |
1770 |
return lscp_client_query(pClient, szQuery); |
1771 |
} |
1772 |
|
1773 |
|
1774 |
/** |
1775 |
* Setting MIDI instrument map: |
1776 |
* SET CHANNEL MIDI_INSTRUMENT_MAP <sampler-channel> <midi-map> |
1777 |
* |
1778 |
* @param pClient Pointer to client instance structure. |
1779 |
* @param iSamplerChannel Sampler channel number. |
1780 |
* @param iMidiMap MIDI instrument map number, or either |
1781 |
* @ref LSCP_MIDI_MAP_NONE or |
1782 |
* @ref LSCP_MIDI_MAP_DEFAULT . |
1783 |
* |
1784 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1785 |
*/ |
1786 |
lscp_status_t lscp_set_channel_midi_map ( lscp_client_t *pClient, |
1787 |
int iSamplerChannel, int iMidiMap ) |
1788 |
{ |
1789 |
char szQuery[LSCP_BUFSIZ]; |
1790 |
|
1791 |
if (iSamplerChannel < 0) |
1792 |
return LSCP_FAILED; |
1793 |
|
1794 |
sprintf(szQuery, "SET CHANNEL MIDI_INSTRUMENT_MAP %d ", iSamplerChannel); |
1795 |
if (iMidiMap == LSCP_MIDI_MAP_NONE) |
1796 |
strcat(szQuery , "NONE"); |
1797 |
else |
1798 |
if (iMidiMap == LSCP_MIDI_MAP_DEFAULT) |
1799 |
strcat(szQuery , "DEFAULT"); |
1800 |
else |
1801 |
sprintf(szQuery + strlen(szQuery), "%d", iMidiMap); |
1802 |
|
1803 |
strcat(szQuery, "\r\n"); |
1804 |
|
1805 |
return lscp_client_query(pClient, szQuery); |
1806 |
} |
1807 |
|
1808 |
|
1809 |
/** |
1810 |
* Setting channel volume: |
1811 |
* SET CHANNEL VOLUME <sampler-channel> <volume> |
1812 |
* |
1813 |
* @param pClient Pointer to client instance structure. |
1814 |
* @param iSamplerChannel Sampler channel number. |
1815 |
* @param fVolume Sampler channel volume as a positive floating point |
1816 |
* number, where a value less than 1.0 for attenuation, |
1817 |
* and greater than 1.0 for amplification. |
1818 |
* |
1819 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1820 |
*/ |
1821 |
lscp_status_t lscp_set_channel_volume ( lscp_client_t *pClient, |
1822 |
int iSamplerChannel, float fVolume ) |
1823 |
{ |
1824 |
char szQuery[LSCP_BUFSIZ]; |
1825 |
struct _locale_t locale; |
1826 |
|
1827 |
if (iSamplerChannel < 0 || fVolume < 0.0f) |
1828 |
return LSCP_FAILED; |
1829 |
|
1830 |
_save_and_set_c_locale(&locale); |
1831 |
sprintf(szQuery, "SET CHANNEL VOLUME %d %g\r\n", |
1832 |
iSamplerChannel, fVolume); |
1833 |
_restore_locale(&locale); |
1834 |
|
1835 |
return lscp_client_query(pClient, szQuery); |
1836 |
} |
1837 |
|
1838 |
|
1839 |
/** |
1840 |
* Muting a sampler channel: |
1841 |
* SET CHANNEL MUTE <sampler-channel> <mute> |
1842 |
* |
1843 |
* @param pClient Pointer to client instance structure. |
1844 |
* @param iSamplerChannel Sampler channel number. |
1845 |
* @param iMute Sampler channel mute state as a boolean value, |
1846 |
* either 1 (one) to mute the channel or 0 (zero) |
1847 |
* to unmute the channel. |
1848 |
* |
1849 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1850 |
*/ |
1851 |
lscp_status_t lscp_set_channel_mute ( lscp_client_t *pClient, |
1852 |
int iSamplerChannel, int iMute ) |
1853 |
{ |
1854 |
char szQuery[LSCP_BUFSIZ]; |
1855 |
|
1856 |
if (iSamplerChannel < 0 || iMute < 0 || iMute > 1) |
1857 |
return LSCP_FAILED; |
1858 |
|
1859 |
sprintf(szQuery, "SET CHANNEL MUTE %d %d\r\n", |
1860 |
iSamplerChannel, iMute); |
1861 |
return lscp_client_query(pClient, szQuery); |
1862 |
} |
1863 |
|
1864 |
|
1865 |
/** |
1866 |
* Soloing a sampler channel: |
1867 |
* SET CHANNEL SOLO <sampler-channel> <solo> |
1868 |
* |
1869 |
* @param pClient Pointer to client instance structure. |
1870 |
* @param iSamplerChannel Sampler channel number. |
1871 |
* @param iSolo Sampler channel solo state as a boolean value, |
1872 |
* either 1 (one) to solo the channel or 0 (zero) |
1873 |
* to unsolo the channel. |
1874 |
* |
1875 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1876 |
*/ |
1877 |
lscp_status_t lscp_set_channel_solo ( lscp_client_t *pClient, |
1878 |
int iSamplerChannel, int iSolo ) |
1879 |
{ |
1880 |
char szQuery[LSCP_BUFSIZ]; |
1881 |
|
1882 |
if (iSamplerChannel < 0 || iSolo < 0 || iSolo > 1) |
1883 |
return LSCP_FAILED; |
1884 |
|
1885 |
sprintf(szQuery, "SET CHANNEL SOLO %d %d\r\n", |
1886 |
iSamplerChannel, iSolo); |
1887 |
return lscp_client_query(pClient, szQuery); |
1888 |
} |
1889 |
|
1890 |
|
1891 |
/** |
1892 |
* Resetting a sampler channel: |
1893 |
* RESET CHANNEL <sampler-channel> |
1894 |
* |
1895 |
* @param pClient Pointer to client instance structure. |
1896 |
* @param iSamplerChannel Sampler channel number. |
1897 |
* |
1898 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1899 |
*/ |
1900 |
lscp_status_t lscp_reset_channel ( lscp_client_t *pClient, int iSamplerChannel ) |
1901 |
{ |
1902 |
char szQuery[LSCP_BUFSIZ]; |
1903 |
|
1904 |
if (iSamplerChannel < 0) |
1905 |
return LSCP_FAILED; |
1906 |
|
1907 |
sprintf(szQuery, "RESET CHANNEL %d\r\n", iSamplerChannel); |
1908 |
return lscp_client_query(pClient, szQuery); |
1909 |
} |
1910 |
|
1911 |
|
1912 |
/** |
1913 |
* Resetting the sampler: |
1914 |
* RESET |
1915 |
* |
1916 |
* @param pClient Pointer to client instance structure. |
1917 |
* |
1918 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1919 |
*/ |
1920 |
lscp_status_t lscp_reset_sampler ( lscp_client_t *pClient ) |
1921 |
{ |
1922 |
// Do actual whole sampler reset... |
1923 |
return lscp_client_query(pClient, "RESET\r\n"); |
1924 |
} |
1925 |
|
1926 |
|
1927 |
/** |
1928 |
* Getting information about the server. |
1929 |
* GET SERVER INFO |
1930 |
* |
1931 |
* @param pClient Pointer to client instance structure. |
1932 |
* |
1933 |
* @returns A pointer to a @ref lscp_server_info_t structure, with all the |
1934 |
* information of the current connected server, or NULL in case of failure. |
1935 |
*/ |
1936 |
lscp_server_info_t *lscp_get_server_info ( lscp_client_t *pClient ) |
1937 |
{ |
1938 |
lscp_server_info_t *pServerInfo; |
1939 |
const char *pszResult; |
1940 |
const char *pszSeps = ":"; |
1941 |
const char *pszCrlf = "\r\n"; |
1942 |
char *pszToken; |
1943 |
char *pch; |
1944 |
|
1945 |
if (pClient == NULL) |
1946 |
return NULL; |
1947 |
|
1948 |
// Lock this section up. |
1949 |
lscp_mutex_lock(pClient->mutex); |
1950 |
|
1951 |
pServerInfo = &(pClient->server_info); |
1952 |
lscp_server_info_reset(pServerInfo); |
1953 |
|
1954 |
if (lscp_client_call(pClient, "GET SERVER INFO\r\n", 1) == LSCP_OK) { |
1955 |
pszResult = lscp_client_get_result(pClient); |
1956 |
pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
1957 |
while (pszToken) { |
1958 |
if (strcasecmp(pszToken, "DESCRIPTION") == 0) { |
1959 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1960 |
if (pszToken) |
1961 |
lscp_unquote_dup(&(pServerInfo->description), &pszToken); |
1962 |
} |
1963 |
else if (strcasecmp(pszToken, "VERSION") == 0) { |
1964 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1965 |
if (pszToken) |
1966 |
lscp_unquote_dup(&(pServerInfo->version), &pszToken); |
1967 |
} |
1968 |
else if (strcasecmp(pszToken, "PROTOCOL_VERSION") == 0) { |
1969 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1970 |
if (pszToken) |
1971 |
lscp_unquote_dup(&(pServerInfo->protocol_version), &pszToken); |
1972 |
} |
1973 |
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
1974 |
} |
1975 |
} |
1976 |
else pServerInfo = NULL; |
1977 |
|
1978 |
// Unlock this section down. |
1979 |
lscp_mutex_unlock(pClient->mutex); |
1980 |
|
1981 |
return pServerInfo; |
1982 |
} |
1983 |
|
1984 |
|
1985 |
/** |
1986 |
* Current total number of active voices: |
1987 |
* GET TOTAL_VOICE_COUNT |
1988 |
* |
1989 |
* @param pClient Pointer to client instance structure. |
1990 |
* |
1991 |
* @returns The total number of voices currently active, |
1992 |
* -1 in case of failure. |
1993 |
*/ |
1994 |
int lscp_get_total_voice_count ( lscp_client_t *pClient ) |
1995 |
{ |
1996 |
int iVoiceCount = -1; |
1997 |
|
1998 |
if (pClient == NULL) |
1999 |
return -1; |
2000 |
|
2001 |
// Lock this section up. |
2002 |
lscp_mutex_lock(pClient->mutex); |
2003 |
|
2004 |
if (lscp_client_call(pClient, "GET TOTAL_VOICE_COUNT\r\n", 0) == LSCP_OK) |
2005 |
iVoiceCount = atoi(lscp_client_get_result(pClient)); |
2006 |
|
2007 |
// Unlock this section down. |
2008 |
lscp_mutex_unlock(pClient->mutex); |
2009 |
|
2010 |
return iVoiceCount; |
2011 |
} |
2012 |
|
2013 |
|
2014 |
/** |
2015 |
* Maximum amount of active voices: |
2016 |
* GET TOTAL_VOICE_COUNT_MAX |
2017 |
* |
2018 |
* @param pClient Pointer to client instance structure. |
2019 |
* |
2020 |
* @returns The maximum amount of voices currently active, |
2021 |
* -1 in case of failure. |
2022 |
*/ |
2023 |
int lscp_get_total_voice_count_max ( lscp_client_t *pClient ) |
2024 |
{ |
2025 |
int iVoiceCount = -1; |
2026 |
|
2027 |
if (pClient == NULL) |
2028 |
return -1; |
2029 |
|
2030 |
// Lock this section up. |
2031 |
lscp_mutex_lock(pClient->mutex); |
2032 |
|
2033 |
if (lscp_client_call(pClient, "GET TOTAL_VOICE_COUNT_MAX\r\n", 0) == LSCP_OK) |
2034 |
iVoiceCount = atoi(lscp_client_get_result(pClient)); |
2035 |
|
2036 |
// Unlock this section down. |
2037 |
lscp_mutex_unlock(pClient->mutex); |
2038 |
|
2039 |
return iVoiceCount; |
2040 |
} |
2041 |
|
2042 |
|
2043 |
/** |
2044 |
* Get global volume attenuation: |
2045 |
* GET VOLUME |
2046 |
* |
2047 |
* @param pClient Pointer to client instance structure. |
2048 |
* |
2049 |
* @returns The global volume as positive floating point value usually in |
2050 |
* the range between 0.0 and 1.0; in case of failure 0.0 is returned. |
2051 |
*/ |
2052 |
float lscp_get_volume ( lscp_client_t *pClient ) |
2053 |
{ |
2054 |
float fVolume = 0.0f; |
2055 |
struct _locale_t locale; |
2056 |
|
2057 |
if (pClient == NULL) |
2058 |
return 0.0f; |
2059 |
|
2060 |
// Lock this section up. |
2061 |
lscp_mutex_lock(pClient->mutex); |
2062 |
|
2063 |
_save_and_set_c_locale(&locale); |
2064 |
|
2065 |
if (lscp_client_call(pClient, "GET VOLUME\r\n", 0) == LSCP_OK) |
2066 |
fVolume = _atof(lscp_client_get_result(pClient)); |
2067 |
|
2068 |
_restore_locale(&locale); |
2069 |
|
2070 |
// Unlock this section down. |
2071 |
lscp_mutex_unlock(pClient->mutex); |
2072 |
|
2073 |
return fVolume; |
2074 |
} |
2075 |
|
2076 |
|
2077 |
/** |
2078 |
* Setting global volume attenuation: |
2079 |
* SET VOLUME <volume> |
2080 |
* |
2081 |
* @param pClient Pointer to client instance structure. |
2082 |
* @param fVolume Global volume parameter as positive floating point |
2083 |
* value usually be in the range between 0.0 and 1.0, |
2084 |
* that is for attenuating the overall volume. |
2085 |
* |
2086 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
2087 |
*/ |
2088 |
lscp_status_t lscp_set_volume ( lscp_client_t *pClient, float fVolume ) |
2089 |
{ |
2090 |
char szQuery[LSCP_BUFSIZ]; |
2091 |
struct _locale_t locale; |
2092 |
|
2093 |
if (fVolume < 0.0f) |
2094 |
return LSCP_FAILED; |
2095 |
|
2096 |
_save_and_set_c_locale(&locale); |
2097 |
sprintf(szQuery, "SET VOLUME %g\r\n", fVolume); |
2098 |
_restore_locale(&locale); |
2099 |
|
2100 |
return lscp_client_query(pClient, szQuery); |
2101 |
} |
2102 |
|
2103 |
|
2104 |
/** |
2105 |
* Get global voice limit setting: |
2106 |
* @code |
2107 |
* GET VOICES |
2108 |
* @endcode |
2109 |
* This value reflects the maximum amount of voices a sampler engine |
2110 |
* processes simultaniously before voice stealing kicks in. |
2111 |
* |
2112 |
* @param pClient Pointer to client instance structure. |
2113 |
* |
2114 |
* @returns The current global maximum amount of voices limit or a |
2115 |
* negative value on error (e.g. if sampler doesn't support |
2116 |
* this command). |
2117 |
*/ |
2118 |
int lscp_get_voices ( lscp_client_t *pClient ) |
2119 |
{ |
2120 |
int iVoices = -1; |
2121 |
|
2122 |
if (pClient == NULL) |
2123 |
return -1; |
2124 |
|
2125 |
// Lock this section up. |
2126 |
lscp_mutex_lock(pClient->mutex); |
2127 |
|
2128 |
if (lscp_client_call(pClient, "GET VOICES\r\n", 0) == LSCP_OK) |
2129 |
iVoices = atoi(lscp_client_get_result(pClient)); |
2130 |
|
2131 |
// Unlock this section down. |
2132 |
lscp_mutex_unlock(pClient->mutex); |
2133 |
|
2134 |
return iVoices; |
2135 |
} |
2136 |
|
2137 |
|
2138 |
/** |
2139 |
* Setting global voice limit setting: |
2140 |
* @code |
2141 |
* SET VOICES <max-voices> |
2142 |
* @endcode |
2143 |
* This value reflects the maximum amount of voices a sampler engine |
2144 |
* processes simultaniously before voice stealing kicks in. Note that |
2145 |
* this value will be passed to all sampler engine instances, that is |
2146 |
* the total amount of maximum voices on the running system is thus |
2147 |
* @param iMaxVoices multiplied with the current amount of sampler |
2148 |
* engine instances. |
2149 |
* |
2150 |
* @param pClient Pointer to client instance structure. |
2151 |
* @param iMaxVoices Global voice limit setting as integer value larger |
2152 |
* or equal to 1. |
2153 |
* |
2154 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
2155 |
*/ |
2156 |
lscp_status_t lscp_set_voices ( lscp_client_t *pClient, int iMaxVoices ) |
2157 |
{ |
2158 |
char szQuery[LSCP_BUFSIZ]; |
2159 |
|
2160 |
if (iMaxVoices < 1) |
2161 |
return LSCP_FAILED; |
2162 |
|
2163 |
sprintf(szQuery, "SET VOICES %d\r\n", iMaxVoices); |
2164 |
return lscp_client_query(pClient, szQuery); |
2165 |
} |
2166 |
|
2167 |
|
2168 |
/** |
2169 |
* Get global disk streams limit setting: |
2170 |
* @code |
2171 |
* GET STREAMS |
2172 |
* @endcode |
2173 |
* This value reflects the maximum amount of disk streams a sampler |
2174 |
* engine processes simultaniously. |
2175 |
* |
2176 |
* @param pClient Pointer to client instance structure. |
2177 |
* |
2178 |
* @returns The current global maximum amount of disk streams limit |
2179 |
* or a negative value on error (e.g. if sampler doesn't |
2180 |
* support this command). |
2181 |
*/ |
2182 |
int lscp_get_streams ( lscp_client_t *pClient ) |
2183 |
{ |
2184 |
int iStreams = -1; |
2185 |
|
2186 |
if (pClient == NULL) |
2187 |
return -1; |
2188 |
|
2189 |
// Lock this section up. |
2190 |
lscp_mutex_lock(pClient->mutex); |
2191 |
|
2192 |
if (lscp_client_call(pClient, "GET STREAMS\r\n", 0) == LSCP_OK) |
2193 |
iStreams = atoi(lscp_client_get_result(pClient)); |
2194 |
|
2195 |
// Unlock this section down. |
2196 |
lscp_mutex_unlock(pClient->mutex); |
2197 |
|
2198 |
return iStreams; |
2199 |
} |
2200 |
|
2201 |
|
2202 |
/** |
2203 |
* Setting global disk streams limit setting: |
2204 |
* @code |
2205 |
* SET STREAMS <max-streams> |
2206 |
* @endcode |
2207 |
* This value reflects the maximum amount of dist streams a sampler |
2208 |
* engine instance processes simultaniously. Note that this value will |
2209 |
* be passed to all sampler engine instances, that is the total amount |
2210 |
* of maximum disk streams on the running system is thus |
2211 |
* @param iMaxStreams multiplied with the current amount of sampler |
2212 |
* engine instances. |
2213 |
* |
2214 |
* @param pClient Pointer to client instance structure. |
2215 |
* @param iMaxStreams Global streams limit setting as positive integer |
2216 |
* value (larger or equal to 0). |
2217 |
* |
2218 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
2219 |
*/ |
2220 |
lscp_status_t lscp_set_streams ( lscp_client_t *pClient, int iMaxStreams ) |
2221 |
{ |
2222 |
char szQuery[LSCP_BUFSIZ]; |
2223 |
|
2224 |
if (iMaxStreams < 0) |
2225 |
return LSCP_FAILED; |
2226 |
|
2227 |
sprintf(szQuery, "SET STREAMS %d\r\n", iMaxStreams); |
2228 |
return lscp_client_query(pClient, szQuery); |
2229 |
} |
2230 |
|
2231 |
|
2232 |
/** |
2233 |
* Add an effect send to a sampler channel: |
2234 |
* CREATE FX_SEND <sampler-channel> <midi-ctrl> [<fx-name>] |
2235 |
* |
2236 |
* @param pClient Pointer to client instance structure. |
2237 |
* @param iSamplerChannel Sampler channel number. |
2238 |
* @param iMidiController MIDI controller used to alter the effect, |
2239 |
* usually a number between 0 and 127. |
2240 |
* @param pszFxName Optional name for the effect send entity, |
2241 |
* does not have to be unique. |
2242 |
* |
2243 |
* @returns The new effect send number identifier, or -1 in case of failure. |
2244 |
*/ |
2245 |
int lscp_create_fxsend ( lscp_client_t *pClient, |
2246 |
int iSamplerChannel, int iMidiController, const char *pszFxName ) |
2247 |
{ |
2248 |
int iFxSend = -1; |
2249 |
char szQuery[LSCP_BUFSIZ]; |
2250 |
|
2251 |
if (pClient == NULL) |
2252 |
return -1; |
2253 |
if (iSamplerChannel < 0 || iMidiController < 0 || iMidiController > 127) |
2254 |
return -1; |
2255 |
|
2256 |
// Lock this section up. |
2257 |
lscp_mutex_lock(pClient->mutex); |
2258 |
|
2259 |
sprintf(szQuery, "CREATE FX_SEND %d %d", |
2260 |
iSamplerChannel, iMidiController); |
2261 |
|
2262 |
if (pszFxName) |
2263 |
sprintf(szQuery + strlen(szQuery), " '%s'", pszFxName); |
2264 |
|
2265 |
strcat(szQuery, "\r\n"); |
2266 |
|
2267 |
if (lscp_client_call(pClient, szQuery, 0) == LSCP_OK) |
2268 |
iFxSend = atoi(lscp_client_get_result(pClient)); |
2269 |
|
2270 |
// Unlock this section down. |
2271 |
lscp_mutex_unlock(pClient->mutex); |
2272 |
|
2273 |
return iFxSend; |
2274 |
} |
2275 |
|
2276 |
|
2277 |
/** |
2278 |
* Remove an effect send from a sampler channel: |
2279 |
* DESTROY FX_SEND <sampler-channel> <fx-send-id> |
2280 |
* |
2281 |
* @param pClient Pointer to client instance structure. |
2282 |
* @param iSamplerChannel Sampler channel number. |
2283 |
* @param iFxSend Effect send number. |
2284 |
* |
2285 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
2286 |
*/ |
2287 |
lscp_status_t lscp_destroy_fxsend ( lscp_client_t *pClient, |
2288 |
int iSamplerChannel, int iFxSend ) |
2289 |
{ |
2290 |
char szQuery[LSCP_BUFSIZ]; |
2291 |
|
2292 |
if (iSamplerChannel < 0 || iFxSend < 0) |
2293 |
return LSCP_FAILED; |
2294 |
|
2295 |
sprintf(szQuery, "DESTROY FX_SEND %d %d\r\n", |
2296 |
iSamplerChannel, iFxSend); |
2297 |
|
2298 |
return lscp_client_query(pClient, szQuery); |
2299 |
} |
2300 |
|
2301 |
|
2302 |
/** |
2303 |
* Get amount of effect sends on a sampler channel: |
2304 |
* GET FX_SENDS <sampler-channel> |
2305 |
* |
2306 |
* @param pClient Pointer to client instance structure. |
2307 |
* @param iSamplerChannel Sampler channel number. |
2308 |
* |
2309 |
* @returns The current total number of effect sends of the sampler channel |
2310 |
* on success, -1 otherwise. |
2311 |
*/ |
2312 |
int lscp_get_fxsends ( lscp_client_t *pClient, int iSamplerChannel ) |
2313 |
{ |
2314 |
int iFxSends = -1; |
2315 |
char szQuery[LSCP_BUFSIZ]; |
2316 |
|
2317 |
if (pClient == NULL) |
2318 |
return -1; |
2319 |
if (iSamplerChannel < 0) |
2320 |
return -1; |
2321 |
|
2322 |
// Lock this section up. |
2323 |
lscp_mutex_lock(pClient->mutex); |
2324 |
|
2325 |
sprintf(szQuery, "GET FX_SENDS %d\r\n", iSamplerChannel); |
2326 |
|
2327 |
if (lscp_client_call(pClient, szQuery, 0) == LSCP_OK) |
2328 |
iFxSends = atoi(lscp_client_get_result(pClient)); |
2329 |
|
2330 |
// Unlock this section doen. |
2331 |
lscp_mutex_unlock(pClient->mutex); |
2332 |
|
2333 |
return iFxSends; |
2334 |
} |
2335 |
|
2336 |
|
2337 |
/** |
2338 |
* List all effect sends on a sampler channel: |
2339 |
* LIST FX_SENDS <sampler-channel> |
2340 |
* |
2341 |
* @param pClient Pointer to client instance structure. |
2342 |
* @param iSamplerChannel Sampler channel number. |
2343 |
* |
2344 |
* @returns An array of the effect sends identifiers as positive integers, |
2345 |
* terminated with -1 on success, NULL otherwise. |
2346 |
*/ |
2347 |
int *lscp_list_fxsends ( lscp_client_t *pClient, int iSamplerChannel ) |
2348 |
{ |
2349 |
const char *pszSeps = ","; |
2350 |
char szQuery[LSCP_BUFSIZ]; |
2351 |
|
2352 |
if (pClient == NULL) |
2353 |
return NULL; |
2354 |
|
2355 |
// Lock this section up. |
2356 |
lscp_mutex_lock(pClient->mutex); |
2357 |
|
2358 |
if (pClient->fxsends) { |
2359 |
lscp_isplit_destroy(pClient->fxsends); |
2360 |
pClient->fxsends = NULL; |
2361 |
} |
2362 |
|
2363 |
sprintf(szQuery, "LIST FX_SENDS %d\r\n", iSamplerChannel); |
2364 |
|
2365 |
if (lscp_client_call(pClient, szQuery, 0) == LSCP_OK) |
2366 |
pClient->fxsends = lscp_isplit_create(lscp_client_get_result(pClient), pszSeps); |
2367 |
|
2368 |
// Unlock this section down. |
2369 |
lscp_mutex_unlock(pClient->mutex); |
2370 |
|
2371 |
return pClient->fxsends; |
2372 |
} |
2373 |
|
2374 |
|
2375 |
/** |
2376 |
* Getting effect send information |
2377 |
* GET FX_SEND INFO <sampler-channel> <fx-send-id> |
2378 |
* |
2379 |
* @param pClient Pointer to client instance structure. |
2380 |
* @param iSamplerChannel Sampler channel number. |
2381 |
* @param iFxSend Effect send number. |
2382 |
* |
2383 |
* @returns A pointer to a @ref lscp_fxsend_info_t structure, with the |
2384 |
* information of the given FX send, or NULL in case of failure. |
2385 |
*/ |
2386 |
lscp_fxsend_info_t *lscp_get_fxsend_info ( lscp_client_t *pClient, |
2387 |
int iSamplerChannel, int iFxSend ) |
2388 |
{ |
2389 |
lscp_fxsend_info_t *pFxSendInfo; |
2390 |
char szQuery[LSCP_BUFSIZ]; |
2391 |
const char *pszResult; |
2392 |
const char *pszSeps = ":"; |
2393 |
const char *pszCrlf = "\r\n"; |
2394 |
char *pszToken; |
2395 |
char *pch; |
2396 |
struct _locale_t locale; |
2397 |
|
2398 |
if (pClient == NULL) |
2399 |
return NULL; |
2400 |
if (iSamplerChannel < 0 || iFxSend < 0) |
2401 |
return NULL; |
2402 |
|
2403 |
// Lock this section up. |
2404 |
lscp_mutex_lock(pClient->mutex); |
2405 |
|
2406 |
_save_and_set_c_locale(&locale); |
2407 |
|
2408 |
pFxSendInfo = &(pClient->fxsend_info); |
2409 |
lscp_fxsend_info_reset(pFxSendInfo); |
2410 |
|
2411 |
sprintf(szQuery, "GET FX_SEND INFO %d %d\r\n", iSamplerChannel, iFxSend); |
2412 |
if (lscp_client_call(pClient, szQuery, 1) == LSCP_OK) { |
2413 |
pszResult = lscp_client_get_result(pClient); |
2414 |
pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
2415 |
while (pszToken) { |
2416 |
if (strcasecmp(pszToken, "NAME") == 0) { |
2417 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
2418 |
if (pszToken) |
2419 |
lscp_unquote_dup(&(pFxSendInfo->name), &pszToken); |
2420 |
} |
2421 |
else if (strcasecmp(pszToken, "MIDI_CONTROLLER") == 0) { |
2422 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
2423 |
if (pszToken) |
2424 |
pFxSendInfo->midi_controller = atoi(lscp_ltrim(pszToken)); |
2425 |
} |
2426 |
else if (strcasecmp(pszToken, "AUDIO_OUTPUT_ROUTING") == 0) { |
2427 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
2428 |
if (pszToken) { |
2429 |
if (pFxSendInfo->audio_routing) |
2430 |
lscp_isplit_destroy(pFxSendInfo->audio_routing); |
2431 |
pFxSendInfo->audio_routing = lscp_isplit_create(pszToken, ","); |
2432 |
} |
2433 |
} |
2434 |
else if (strcasecmp(pszToken, "LEVEL") == 0) { |
2435 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
2436 |
if (pszToken) |
2437 |
pFxSendInfo->level = _atof(lscp_ltrim(pszToken)); |
2438 |
} |
2439 |
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
2440 |
} |
2441 |
} |
2442 |
else pFxSendInfo = NULL; |
2443 |
|
2444 |
_restore_locale(&locale); |
2445 |
|
2446 |
// Unlock this section up. |
2447 |
lscp_mutex_unlock(pClient->mutex); |
2448 |
|
2449 |
return pFxSendInfo; |
2450 |
} |
2451 |
|
2452 |
|
2453 |
/** |
2454 |
* Alter effect send's name: |
2455 |
* @code |
2456 |
* SET FX_SEND NAME <sampler-chan> <fx-send-id> <name> |
2457 |
* @endcode |
2458 |
* |
2459 |
* @param pClient Pointer to client instance structure. |
2460 |
* @param iSamplerChannel Sampler channel number. |
2461 |
* @param iFxSend Effect send number. |
2462 |
* @param pszFxName Effect send's new name. |
2463 |
* |
2464 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
2465 |
*/ |
2466 |
lscp_status_t lscp_set_fxsend_name ( lscp_client_t *pClient, |
2467 |
int iSamplerChannel, int iFxSend, const char *pszFxName ) |
2468 |
{ |
2469 |
char szQuery[LSCP_BUFSIZ]; |
2470 |
|
2471 |
if (!pClient || iSamplerChannel < 0 || iFxSend < 0 || !pszFxName) |
2472 |
return LSCP_FAILED; |
2473 |
|
2474 |
snprintf(szQuery, LSCP_BUFSIZ, "SET FX_SEND NAME %d %d '%s'\r\n", |
2475 |
iSamplerChannel, iFxSend, pszFxName); |
2476 |
return lscp_client_query(pClient, szQuery); |
2477 |
} |
2478 |
|
2479 |
|
2480 |
/** |
2481 |
* Alter effect send's audio routing: |
2482 |
* SET FX_SEND AUDIO_OUTPUT_CHANNEL <sampler-chan> <fx-send-id> |
2483 |
* <audio-src> <audio-dst> |
2484 |
* |
2485 |
* @param pClient Pointer to client instance structure. |
2486 |
* @param iSamplerChannel Sampler channel number. |
2487 |
* @param iFxSend Effect send number. |
2488 |
* @param iAudioSrc Audio output device channel to be routed from. |
2489 |
* @param iAudioDst Audio output device channel to be routed into. |
2490 |
* |
2491 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
2492 |
*/ |
2493 |
lscp_status_t lscp_set_fxsend_audio_channel ( lscp_client_t *pClient, |
2494 |
int iSamplerChannel, int iFxSend, int iAudioSrc, int iAudioDst ) |
2495 |
{ |
2496 |
char szQuery[LSCP_BUFSIZ]; |
2497 |
|
2498 |
if (iSamplerChannel < 0 || iFxSend < 0 || iAudioSrc < 0 || iAudioDst < 0) |
2499 |
return LSCP_FAILED; |
2500 |
|
2501 |
sprintf(szQuery, "SET FX_SEND AUDIO_OUTPUT_CHANNEL %d %d %d %d\r\n", |
2502 |
iSamplerChannel, iFxSend, iAudioSrc, iAudioDst); |
2503 |
return lscp_client_query(pClient, szQuery); |
2504 |
} |
2505 |
|
2506 |
|
2507 |
/** |
2508 |
* Alter effect send's MIDI controller: |
2509 |
* SET FX_SEND MIDI_CONTROLLER <sampler-chan> <fx-send-id> <midi-ctrl> |
2510 |
* |
2511 |
* @param pClient Pointer to client instance structure. |
2512 |
* @param iSamplerChannel Sampler channel number. |
2513 |
* @param iFxSend Effect send number. |
2514 |
* @param iMidiController MIDI controller used to alter the effect, |
2515 |
* usually a number between 0 and 127. |
2516 |
* |
2517 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
2518 |
*/ |
2519 |
lscp_status_t lscp_set_fxsend_midi_controller ( lscp_client_t *pClient, |
2520 |
int iSamplerChannel, int iFxSend, int iMidiController ) |
2521 |
{ |
2522 |
char szQuery[LSCP_BUFSIZ]; |
2523 |
|
2524 |
if (iSamplerChannel < 0 || iFxSend < 0 || |
2525 |
iMidiController < 0 || iMidiController > 127) |
2526 |
return LSCP_FAILED; |
2527 |
|
2528 |
sprintf(szQuery, "SET FX_SEND MIDI_CONTROLLER %d %d %d\r\n", |
2529 |
iSamplerChannel, iFxSend, iMidiController); |
2530 |
return lscp_client_query(pClient, szQuery); |
2531 |
} |
2532 |
|
2533 |
|
2534 |
/** |
2535 |
* Alter effect send's audio level: |
2536 |
* SET FX_SEND LEVEL <sampler-chan> <fx-send-id> <level> |
2537 |
* |
2538 |
* @param pClient Pointer to client instance structure. |
2539 |
* @param iSamplerChannel Sampler channel number. |
2540 |
* @param iFxSend Effect send number. |
2541 |
* @param fLevel Effect send volume level. |
2542 |
* |
2543 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
2544 |
*/ |
2545 |
lscp_status_t lscp_set_fxsend_level ( lscp_client_t *pClient, |
2546 |
int iSamplerChannel, int iFxSend, float fLevel ) |
2547 |
{ |
2548 |
char szQuery[LSCP_BUFSIZ]; |
2549 |
struct _locale_t locale; |
2550 |
|
2551 |
if (iSamplerChannel < 0 || iFxSend < 0 || fLevel < 0.0f) |
2552 |
return LSCP_FAILED; |
2553 |
|
2554 |
_save_and_set_c_locale(&locale); |
2555 |
sprintf(szQuery, "SET FX_SEND LEVEL %d %d %f\r\n", |
2556 |
iSamplerChannel, iFxSend, fLevel); |
2557 |
_restore_locale(&locale); |
2558 |
|
2559 |
return lscp_client_query(pClient, szQuery); |
2560 |
} |
2561 |
|
2562 |
|
2563 |
/** |
2564 |
* Create a new MIDI instrument map: |
2565 |
* ADD MIDI_INSTRUMENT_MAP [<name>] |
2566 |
* |
2567 |
* @param pClient Pointer to client instance structure. |
2568 |
* @param pszMapName MIDI instrument map name (optional) |
2569 |
* |
2570 |
* @returns The new MIDI instrument map number identifier, |
2571 |
* or -1 in case of failure. |
2572 |
*/ |
2573 |
int lscp_add_midi_instrument_map ( lscp_client_t *pClient, const char *pszMapName ) |
2574 |
{ |
2575 |
int iMidiMap = -1; |
2576 |
char szQuery[LSCP_BUFSIZ]; |
2577 |
|
2578 |
if (pClient == NULL) |
2579 |
return -1; |
2580 |
|
2581 |
// Lock this section up. |
2582 |
lscp_mutex_lock(pClient->mutex); |
2583 |
|
2584 |
strcpy(szQuery, "ADD MIDI_INSTRUMENT_MAP"); |
2585 |
|
2586 |
if (pszMapName) |
2587 |
sprintf(szQuery + strlen(szQuery), " '%s'", pszMapName); |
2588 |
|
2589 |
strcat(szQuery, "\r\n"); |
2590 |
|
2591 |
if (lscp_client_call(pClient, szQuery, 0) == LSCP_OK) |
2592 |
iMidiMap = atoi(lscp_client_get_result(pClient)); |
2593 |
|
2594 |
// Unlock this section down. |
2595 |
lscp_mutex_unlock(pClient->mutex); |
2596 |
|
2597 |
return iMidiMap; |
2598 |
} |
2599 |
|
2600 |
|
2601 |
/** |
2602 |
* Delete one particular or all MIDI instrument maps: |
2603 |
* REMOVE MIDI_INSTRUMENT_MAP <midi-map> |
2604 |
* |
2605 |
* @param pClient Pointer to client instance structure. |
2606 |
* @param iMidiMap MIDI instrument map number. |
2607 |
* |
2608 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
2609 |
*/ |
2610 |
lscp_status_t lscp_remove_midi_instrument_map ( lscp_client_t *pClient, int iMidiMap ) |
2611 |
{ |
2612 |
char szQuery[LSCP_BUFSIZ]; |
2613 |
|
2614 |
if (iMidiMap < 0) |
2615 |
return LSCP_FAILED; |
2616 |
|
2617 |
sprintf(szQuery, "REMOVE MIDI_INSTRUMENT_MAP %d\r\n", iMidiMap); |
2618 |
|
2619 |
return lscp_client_query(pClient, szQuery); |
2620 |
} |
2621 |
|
2622 |
|
2623 |
/** |
2624 |
* Get amount of existing MIDI instrument maps: |
2625 |
* GET MIDI_INSTRUMENT_MAPS |
2626 |
* |
2627 |
* @param pClient Pointer to client instance structure. |
2628 |
* |
2629 |
* @returns The current total number of MIDI instrument maps |
2630 |
* on success, -1 otherwise. |
2631 |
*/ |
2632 |
int lscp_get_midi_instrument_maps ( lscp_client_t *pClient ) |
2633 |
{ |
2634 |
int iMidiMaps = -1; |
2635 |
|
2636 |
if (pClient == NULL) |
2637 |
return -1; |
2638 |
|
2639 |
// Lock this section up. |
2640 |
lscp_mutex_lock(pClient->mutex); |
2641 |
|
2642 |
if (lscp_client_call(pClient, "GET MIDI_INSTRUMENT_MAPS\r\n", 0) == LSCP_OK) |
2643 |
iMidiMaps = atoi(lscp_client_get_result(pClient)); |
2644 |
|
2645 |
// Unlock this section doen. |
2646 |
lscp_mutex_unlock(pClient->mutex); |
2647 |
|
2648 |
return iMidiMaps; |
2649 |
} |
2650 |
|
2651 |
|
2652 |
/** |
2653 |
* Getting all created MIDI instrument maps: |
2654 |
* LIST MIDI_INSTRUMENT_MAPS |
2655 |
* |
2656 |
* @param pClient Pointer to client instance structure. |
2657 |
* |
2658 |
* @returns An array of the MIDI instrument map identifiers as positive |
2659 |
* integers, terminated with -1 on success, NULL otherwise. |
2660 |
*/ |
2661 |
int *lscp_list_midi_instrument_maps ( lscp_client_t *pClient ) |
2662 |
{ |
2663 |
const char *pszSeps = ","; |
2664 |
|
2665 |
if (pClient == NULL) |
2666 |
return NULL; |
2667 |
|
2668 |
// Lock this section up. |
2669 |
lscp_mutex_lock(pClient->mutex); |
2670 |
|
2671 |
if (pClient->midi_maps) { |
2672 |
lscp_isplit_destroy(pClient->midi_maps); |
2673 |
pClient->midi_maps = NULL; |
2674 |
} |
2675 |
|
2676 |
if (lscp_client_call(pClient, "LIST MIDI_INSTRUMENT_MAPS\r\n", 0) == LSCP_OK) |
2677 |
pClient->midi_maps = lscp_isplit_create(lscp_client_get_result(pClient), pszSeps); |
2678 |
|
2679 |
// Unlock this section down. |
2680 |
lscp_mutex_unlock(pClient->mutex); |
2681 |
|
2682 |
return pClient->midi_maps; |
2683 |
} |
2684 |
|
2685 |
|
2686 |
/** |
2687 |
* Getting a MIDI instrument map name: |
2688 |
* GET MIDI_INSTRUMENT_MAP INFO <midi-map> |
2689 |
* |
2690 |
* @param pClient Pointer to client instance structure. |
2691 |
* @param iMidiMap MIDI instrument map number. |
2692 |
* |
2693 |
* @returns The MIDI instrument map name on success, NULL on failure. |
2694 |
*/ |
2695 |
const char *lscp_get_midi_instrument_map_name ( lscp_client_t *pClient, int iMidiMap ) |
2696 |
{ |
2697 |
char szQuery[LSCP_BUFSIZ]; |
2698 |
const char *pszResult; |
2699 |
const char *pszSeps = ":"; |
2700 |
const char *pszCrlf = "\r\n"; |
2701 |
char *pszToken; |
2702 |
char *pch; |
2703 |
|
2704 |
if (pClient == NULL) |
2705 |
return NULL; |
2706 |
if (iMidiMap < 0) |
2707 |
return NULL; |
2708 |
|
2709 |
// Lock this section up. |
2710 |
lscp_mutex_lock(pClient->mutex); |
2711 |
|
2712 |
if (pClient->midi_map_name) { |
2713 |
free(pClient->midi_map_name); |
2714 |
pClient->midi_map_name = NULL; |
2715 |
} |
2716 |
|
2717 |
sprintf(szQuery, "GET MIDI_INSTRUMENT_MAP INFO %d\r\n", iMidiMap); |
2718 |
if (lscp_client_call(pClient, szQuery, 1) == LSCP_OK) { |
2719 |
pszResult = lscp_client_get_result(pClient); |
2720 |
pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
2721 |
while (pszToken) { |
2722 |
if (strcasecmp(pszToken, "NAME") == 0) { |
2723 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
2724 |
if (pszToken) |
2725 |
lscp_unquote_dup(&(pClient->midi_map_name), &pszToken); |
2726 |
} |
2727 |
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
2728 |
} |
2729 |
} |
2730 |
|
2731 |
// Unlock this section down. |
2732 |
lscp_mutex_unlock(pClient->mutex); |
2733 |
|
2734 |
return pClient->midi_map_name; |
2735 |
} |
2736 |
|
2737 |
|
2738 |
/** |
2739 |
* Renaming a MIDI instrument map: |
2740 |
* SET MIDI_INSTRUMENT_MAP NAME <midi-map> <map-name> |
2741 |
* |
2742 |
* @param pClient Pointer to client instance structure. |
2743 |
* @param iMidiMap MIDI instrument map number. |
2744 |
* @param pszMapName MIDI instrument map name. |
2745 |
* |
2746 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
2747 |
*/ |
2748 |
lscp_status_t lscp_set_midi_instrument_map_name ( lscp_client_t *pClient, int iMidiMap, const char *pszMapName ) |
2749 |
{ |
2750 |
char szQuery[LSCP_BUFSIZ]; |
2751 |
|
2752 |
if (iMidiMap < 0) |
2753 |
return LSCP_FAILED; |
2754 |
if (pszMapName == NULL) |
2755 |
return LSCP_FAILED; |
2756 |
|
2757 |
sprintf(szQuery, "SET MIDI_INSTRUMENT_MAP NAME %d '%s'\r\n", |
2758 |
iMidiMap, pszMapName); |
2759 |
|
2760 |
return lscp_client_query(pClient, szQuery); |
2761 |
} |
2762 |
|
2763 |
|
2764 |
/** |
2765 |
* Create or replace a MIDI instrumnet map entry: |
2766 |
* MAP MIDI_INSTRUMENT <midi-map> <midi-bank> <midi-prog> |
2767 |
* <engine-name> <filename> <instr-index> <volume> [<load-mode> [<name>]} |
2768 |
* |
2769 |
* @param pClient Pointer to client instance structure. |
2770 |
* @param pMidiInstr MIDI instrument bank and program parameter key. |
2771 |
* @param pszEngineName Engine name. |
2772 |
* @param pszFileName Instrument file name. |
2773 |
* @param iInstrIndex Instrument index number. |
2774 |
* @param fVolume Reflects the master volume of the instrument as |
2775 |
* a positive floating point number, where a value |
2776 |
* less than 1.0 for attenuation, and greater than |
2777 |
* 1.0 for amplification. |
2778 |
* @param load_mode Instrument load life-time strategy, either |
2779 |
* @ref LSCP_LOAD_DEFAULT, or |
2780 |
* @ref LSCP_LOAD_ON_DEMAND, or |
2781 |
* @ref LSCP_LOAD_ON_DEMAND_HOLD, or |
2782 |
* @ref LSCP_LOAD_PERSISTENT. |
2783 |
* @param pszName Instrument custom name for the map entry (optional). |
2784 |
* |
2785 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
2786 |
*/ |
2787 |
lscp_status_t lscp_map_midi_instrument ( lscp_client_t *pClient, |
2788 |
lscp_midi_instrument_t *pMidiInstr, const char *pszEngineName, |
2789 |
const char *pszFileName, int iInstrIndex, float fVolume, |
2790 |
lscp_load_mode_t load_mode, const char *pszName ) |
2791 |
{ |
2792 |
char szQuery[LSCP_BUFSIZ]; |
2793 |
struct _locale_t locale; |
2794 |
|
2795 |
if (pMidiInstr->map < 0) |
2796 |
return LSCP_FAILED; |
2797 |
if (pMidiInstr->bank < 0 || pMidiInstr->bank > 16383) |
2798 |
return LSCP_FAILED; |
2799 |
if (pMidiInstr->prog < 0 || pMidiInstr->prog > 127) |
2800 |
return LSCP_FAILED; |
2801 |
if (pszEngineName == NULL || pszFileName == NULL) |
2802 |
return LSCP_FAILED; |
2803 |
|
2804 |
if (fVolume < 0.0f) |
2805 |
fVolume = 1.0f; |
2806 |
|
2807 |
_save_and_set_c_locale(&locale); |
2808 |
sprintf(szQuery, "MAP MIDI_INSTRUMENT %d %d %d %s '%s' %d %g", |
2809 |
pMidiInstr->map, pMidiInstr->bank, pMidiInstr->prog, |
2810 |
pszEngineName, pszFileName, iInstrIndex, fVolume); |
2811 |
_restore_locale(&locale); |
2812 |
|
2813 |
switch (load_mode) { |
2814 |
case LSCP_LOAD_PERSISTENT: |
2815 |
strcat(szQuery, " PERSISTENT"); |
2816 |
break; |
2817 |
case LSCP_LOAD_ON_DEMAND_HOLD: |
2818 |
strcat(szQuery, " ON_DEMAND_HOLD"); |
2819 |
break; |
2820 |
case LSCP_LOAD_ON_DEMAND: |
2821 |
strcat(szQuery, " ON_DEMAND"); |
2822 |
break; |
2823 |
case LSCP_LOAD_DEFAULT: |
2824 |
default: |
2825 |
break; |
2826 |
} |
2827 |
|
2828 |
if (pszName) |
2829 |
sprintf(szQuery + strlen(szQuery), " '%s'", pszName); |
2830 |
|
2831 |
strcat(szQuery, "\r\n"); |
2832 |
|
2833 |
return lscp_client_query(pClient, szQuery); |
2834 |
} |
2835 |
|
2836 |
|
2837 |
/** |
2838 |
* Remove an entry from the MIDI instrument map: |
2839 |
* UNMAP MIDI_INSTRUMENT <midi-map> <midi-bank> <midi-prog> |
2840 |
* |
2841 |
* @param pClient Pointer to client instance structure. |
2842 |
* @param pMidiInstr MIDI instrument bank and program parameter key. |
2843 |
* |
2844 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
2845 |
*/ |
2846 |
lscp_status_t lscp_unmap_midi_instrument ( lscp_client_t *pClient, |
2847 |
lscp_midi_instrument_t *pMidiInstr ) |
2848 |
{ |
2849 |
char szQuery[LSCP_BUFSIZ]; |
2850 |
|
2851 |
if (pMidiInstr->map < 0) |
2852 |
return LSCP_FAILED; |
2853 |
if (pMidiInstr->bank < 0 || pMidiInstr->bank > 16383) |
2854 |
return LSCP_FAILED; |
2855 |
if (pMidiInstr->prog < 0 || pMidiInstr->prog > 127) |
2856 |
return LSCP_FAILED; |
2857 |
|
2858 |
sprintf(szQuery, "UNMAP MIDI_INSTRUMENT %d %d %d\r\n", |
2859 |
pMidiInstr->map, pMidiInstr->bank, pMidiInstr->prog); |
2860 |
|
2861 |
return lscp_client_query(pClient, szQuery); |
2862 |
} |
2863 |
|
2864 |
|
2865 |
/** |
2866 |
* Get the total count of MIDI instrument map entries: |
2867 |
* GET MIDI_INSTRUMENTS ALL|<midi-map> |
2868 |
* |
2869 |
* @param pClient Pointer to client instance structure. |
2870 |
* @param iMidiMap MIDI instrument map number, or @ref LSCP_MIDI_MAP_ALL . |
2871 |
* |
2872 |
* @returns The current total number of MIDI instrument map entries |
2873 |
* on success, -1 otherwise. |
2874 |
*/ |
2875 |
int lscp_get_midi_instruments ( lscp_client_t *pClient, int iMidiMap ) |
2876 |
{ |
2877 |
int iInstruments = -1; |
2878 |
char szQuery[LSCP_BUFSIZ]; |
2879 |
|
2880 |
if (pClient == NULL) |
2881 |
return -1; |
2882 |
|
2883 |
// Lock this section up. |
2884 |
lscp_mutex_lock(pClient->mutex); |
2885 |
|
2886 |
strcpy(szQuery, "GET MIDI_INSTRUMENTS "); |
2887 |
|
2888 |
if (iMidiMap < 0) |
2889 |
strcat(szQuery, "ALL"); |
2890 |
else |
2891 |
sprintf(szQuery + strlen(szQuery), "%d", iMidiMap); |
2892 |
|
2893 |
strcat(szQuery, "\r\n"); |
2894 |
|
2895 |
if (lscp_client_call(pClient, szQuery, 0) == LSCP_OK) |
2896 |
iInstruments = atoi(lscp_client_get_result(pClient)); |
2897 |
|
2898 |
// Unlock this section down. |
2899 |
lscp_mutex_unlock(pClient->mutex); |
2900 |
|
2901 |
return iInstruments; |
2902 |
} |
2903 |
|
2904 |
|
2905 |
/** |
2906 |
* Getting indeces of all MIDI instrument map entries: |
2907 |
* LIST MIDI_INSTRUMENTS ALL|<midi-map> |
2908 |
* |
2909 |
* @param pClient Pointer to client instance structure. |
2910 |
* @param iMidiMap MIDI instrument map number, or @ref LSCP_MIDI_MAP_ALL . |
2911 |
* |
2912 |
* @returns An array of @ref lscp_midi_instrument_t, terminated with the |
2913 |
* {-1,-1,-1} triplet, NULL otherwise. |
2914 |
*/ |
2915 |
lscp_midi_instrument_t *lscp_list_midi_instruments ( lscp_client_t *pClient, int iMidiMap ) |
2916 |
{ |
2917 |
char szQuery[LSCP_BUFSIZ]; |
2918 |
|
2919 |
if (pClient == NULL) |
2920 |
return NULL; |
2921 |
|
2922 |
// Lock this section up. |
2923 |
lscp_mutex_lock(pClient->mutex); |
2924 |
|
2925 |
if (pClient->midi_instruments) { |
2926 |
lscp_midi_instruments_destroy(pClient->midi_instruments); |
2927 |
pClient->midi_instruments = NULL; |
2928 |
} |
2929 |
|
2930 |
strcpy(szQuery, "LIST MIDI_INSTRUMENTS "); |
2931 |
|
2932 |
if (iMidiMap < 0) |
2933 |
strcat(szQuery, "ALL"); |
2934 |
else |
2935 |
sprintf(szQuery + strlen(szQuery), "%d", iMidiMap); |
2936 |
|
2937 |
strcat(szQuery, "\r\n"); |
2938 |
|
2939 |
if (lscp_client_call(pClient, szQuery, 0) == LSCP_OK) |
2940 |
pClient->midi_instruments = lscp_midi_instruments_create( |
2941 |
lscp_client_get_result(pClient)); |
2942 |
|
2943 |
// Unlock this section down. |
2944 |
lscp_mutex_unlock(pClient->mutex); |
2945 |
|
2946 |
return pClient->midi_instruments; |
2947 |
} |
2948 |
|
2949 |
|
2950 |
/** |
2951 |
* Getting information about a MIDI instrument map entry: |
2952 |
* GET MIDI_INSTRUMENT INFO <midi-map> <midi-bank> <midi-prog> |
2953 |
* |
2954 |
* @param pClient Pointer to client instance structure. |
2955 |
* @param pMidiInstr MIDI instrument bank and program parameter key. |
2956 |
* |
2957 |
* @returns A pointer to a @ref lscp_midi_instrument_info_t structure, |
2958 |
* with all the information of the given MIDI instrument map entry, |
2959 |
* or NULL in case of failure. |
2960 |
*/ |
2961 |
lscp_midi_instrument_info_t *lscp_get_midi_instrument_info ( lscp_client_t *pClient, |
2962 |
lscp_midi_instrument_t *pMidiInstr ) |
2963 |
{ |
2964 |
lscp_midi_instrument_info_t *pInstrInfo; |
2965 |
char szQuery[LSCP_BUFSIZ]; |
2966 |
const char *pszResult; |
2967 |
const char *pszSeps = ":"; |
2968 |
const char *pszCrlf = "\r\n"; |
2969 |
char *pszToken; |
2970 |
char *pch; |
2971 |
struct _locale_t locale; |
2972 |
|
2973 |
if (pClient == NULL) |
2974 |
return NULL; |
2975 |
if (pMidiInstr->map < 0) |
2976 |
return NULL; |
2977 |
if (pMidiInstr->bank < 0 || pMidiInstr->bank > 16383) |
2978 |
return NULL; |
2979 |
if (pMidiInstr->prog < 0 || pMidiInstr->prog > 127) |
2980 |
return NULL; |
2981 |
|
2982 |
// Lock this section up. |
2983 |
lscp_mutex_lock(pClient->mutex); |
2984 |
|
2985 |
_save_and_set_c_locale(&locale); |
2986 |
|
2987 |
pInstrInfo = &(pClient->midi_instrument_info); |
2988 |
lscp_midi_instrument_info_reset(pInstrInfo); |
2989 |
|
2990 |
sprintf(szQuery, "GET MIDI_INSTRUMENT INFO %d %d %d\r\n", |
2991 |
pMidiInstr->map, pMidiInstr->bank, pMidiInstr->prog); |
2992 |
if (lscp_client_call(pClient, szQuery, 1) == LSCP_OK) { |
2993 |
pszResult = lscp_client_get_result(pClient); |
2994 |
pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
2995 |
while (pszToken) { |
2996 |
if (strcasecmp(pszToken, "NAME") == 0) { |
2997 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
2998 |
if (pszToken) |
2999 |
lscp_unquote_dup(&(pInstrInfo->name), &pszToken); |
3000 |
} |
3001 |
else if (strcasecmp(pszToken, "ENGINE_NAME") == 0) { |
3002 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
3003 |
if (pszToken) |
3004 |
lscp_unquote_dup(&(pInstrInfo->engine_name), &pszToken); |
3005 |
} |
3006 |
else if (strcasecmp(pszToken, "INSTRUMENT_FILE") == 0) { |
3007 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
3008 |
if (pszToken) |
3009 |
lscp_unquote_dup(&(pInstrInfo->instrument_file), &pszToken); |
3010 |
} |
3011 |
else if (strcasecmp(pszToken, "INSTRUMENT_NR") == 0) { |
3012 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
3013 |
if (pszToken) |
3014 |
pInstrInfo->instrument_nr = atoi(lscp_ltrim(pszToken)); |
3015 |
} |
3016 |
else if (strcasecmp(pszToken, "INSTRUMENT_NAME") == 0) { |
3017 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
3018 |
if (pszToken) |
3019 |
lscp_unquote_dup(&(pInstrInfo->instrument_name), &pszToken); |
3020 |
} |
3021 |
else if (strcasecmp(pszToken, "LOAD_MODE") == 0) { |
3022 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
3023 |
if (pszToken) { |
3024 |
pszToken = lscp_ltrim(pszToken); |
3025 |
if (strcasecmp(pszToken, "ON_DEMAND") == 0) |
3026 |
pInstrInfo->load_mode = LSCP_LOAD_ON_DEMAND; |
3027 |
else |
3028 |
if (strcasecmp(pszToken, "ON_DEMAND_HOLD") == 0) |
3029 |
pInstrInfo->load_mode = LSCP_LOAD_ON_DEMAND_HOLD; |
3030 |
else |
3031 |
if (strcasecmp(pszToken, "PERSISTENT") == 0) |
3032 |
pInstrInfo->load_mode = LSCP_LOAD_PERSISTENT; |
3033 |
else |
3034 |
pInstrInfo->load_mode = LSCP_LOAD_DEFAULT; |
3035 |
} |
3036 |
} |
3037 |
else if (strcasecmp(pszToken, "VOLUME") == 0) { |
3038 |
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
3039 |
if (pszToken) |
3040 |
pInstrInfo->volume = _atof(lscp_ltrim(pszToken)); |
3041 |
} |
3042 |
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
3043 |
} |
3044 |
} |
3045 |
else pInstrInfo = NULL; |
3046 |
|
3047 |
_restore_locale(&locale); |
3048 |
|
3049 |
// Unlock this section down. |
3050 |
lscp_mutex_unlock(pClient->mutex); |
3051 |
|
3052 |
return pInstrInfo; |
3053 |
} |
3054 |
|
3055 |
|
3056 |
/** |
3057 |
* Clear the MIDI instrumnet map: |
3058 |
* CLEAR MIDI_INSTRUMENTS ALL|<midi-map> |
3059 |
* |
3060 |
* @param pClient Pointer to client instance structure. |
3061 |
* @param iMidiMap MIDI instrument map number, or @ref LSCP_MIDI_MAP_ALL . |
3062 |
* |
3063 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
3064 |
*/ |
3065 |
lscp_status_t lscp_clear_midi_instruments ( lscp_client_t *pClient, int iMidiMap ) |
3066 |
{ |
3067 |
char szQuery[LSCP_BUFSIZ]; |
3068 |
|
3069 |
strcpy(szQuery, "CLEAR MIDI_INSTRUMENTS "); |
3070 |
|
3071 |
if (iMidiMap < 0) |
3072 |
strcat(szQuery, "ALL"); |
3073 |
else |
3074 |
sprintf(szQuery + strlen(szQuery), "%d", iMidiMap); |
3075 |
|
3076 |
strcat(szQuery, "\r\n"); |
3077 |
|
3078 |
return lscp_client_query(pClient, szQuery); |
3079 |
} |
3080 |
|
3081 |
|
3082 |
/** |
3083 |
* Open an instrument editor application for the instrument |
3084 |
* on the given sampler channel: |
3085 |
* EDIT CHANNEL INSTRUMENT <sampler-channel> |
3086 |
* |
3087 |
* @param pClient Pointer to client instance structure. |
3088 |
* @param iSamplerChannel Sampler Channel. |
3089 |
* |
3090 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
3091 |
*/ |
3092 |
lscp_status_t lscp_edit_channel_instrument ( lscp_client_t *pClient, int iSamplerChannel ) |
3093 |
{ |
3094 |
char szQuery[LSCP_BUFSIZ]; |
3095 |
|
3096 |
if (iSamplerChannel < 0) |
3097 |
return LSCP_FAILED; |
3098 |
|
3099 |
sprintf(szQuery, "EDIT CHANNEL INSTRUMENT %d\r\n", iSamplerChannel); |
3100 |
|
3101 |
return lscp_client_query(pClient, szQuery); |
3102 |
} |
3103 |
|
3104 |
|
3105 |
// end of client.c |