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// device.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, 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 Lesser General Public |
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License along with this library; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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|
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*****************************************************************************/ |
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|
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#include "common.h" |
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|
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|
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// Local prototypes. |
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|
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static lscp_driver_info_t *_lscp_driver_info_query (lscp_client_t *pClient, lscp_driver_info_t *pDriverInfo, const char *pszQuery); |
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|
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|
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//------------------------------------------------------------------------- |
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// Local funtions. |
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|
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// Common driver type query command. |
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static lscp_driver_info_t *_lscp_driver_info_query ( lscp_client_t *pClient, lscp_driver_info_t *pDriverInfo, const char *pszQuery ) |
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{ |
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const char *pszResult; |
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const char *pszSeps = ":"; |
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const char *pszCrlf = "\r\n"; |
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char *pszToken; |
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char *pch; |
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|
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lscp_driver_info_reset(pDriverInfo); |
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|
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if (lscp_client_query(pClient, pszQuery) != LSCP_OK) |
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return NULL; |
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|
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pszResult = lscp_client_get_result(pClient); |
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pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
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while (pszToken) { |
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if (strcasecmp(pszToken, "DESCRIPTION") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pDriverInfo->description = lscp_unquote(&pszToken, 1); |
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} |
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else if (strcasecmp(pszToken, "VERSION") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pDriverInfo->version = lscp_unquote(&pszToken, 1); |
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} |
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else if (strcasecmp(pszToken, "PARAMETERS") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pDriverInfo->parameters = lscp_szsplit_create(pszToken, ","); |
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} |
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pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
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} |
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|
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return pDriverInfo; |
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} |
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|
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|
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//------------------------------------------------------------------------- |
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// Audio driver control functions. |
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|
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/** |
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* Getting all available audio output drivers. |
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* GET AVAILABLE_AUDIO_OUTPUT_DRIVERS |
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* |
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* @param pClient Pointer to client instance structure. |
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* |
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* @returns A NULL terminated array of audio output driver type |
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* name strings, or NULL in case of failure. |
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*/ |
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const char ** lscp_get_available_audio_drivers ( lscp_client_t *pClient ) |
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{ |
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const char *pszSeps = ","; |
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|
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if (pClient->audio_drivers) { |
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lscp_szsplit_destroy(pClient->audio_drivers); |
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pClient->audio_drivers = NULL; |
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} |
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|
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if (lscp_client_query(pClient, "GET AVAILABLE_AUDIO_OUTPUT_DRIVERS\r\n") == LSCP_OK) |
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pClient->audio_drivers = lscp_szsplit_create(lscp_client_get_result(pClient), pszSeps); |
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|
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return (const char **) pClient->audio_drivers; |
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} |
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|
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|
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/** |
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* Getting informations about a specific audio output driver. |
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* GET AUDIO_OUTPUT_DRIVER INFO <audio-output-type> |
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* |
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* @param pClient Pointer to client instance structure. |
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* @param pszAudioDriver Audio driver type string (e.g. "ALSA"). |
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* |
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* @returns A pointer to a @ref lscp_driver_info_t structure, with |
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* the given audio driver information, or NULL in case of failure. |
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*/ |
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lscp_driver_info_t* lscp_get_audio_driver_info ( lscp_client_t *pClient, const char *pszAudioDriver ) |
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{ |
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char szQuery[LSCP_BUFSIZ]; |
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|
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if (pszAudioDriver == NULL) |
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return NULL; |
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|
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sprintf(szQuery, "GET AUDIO_OUTPUT_DRIVER INFO %s\r\n", pszAudioDriver); |
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return _lscp_driver_info_query(pClient, &(pClient->audio_info), szQuery); |
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} |
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|
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|
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/** |
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* Getting informations about specific audio output driver parameter. |
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* GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO <audio-output-driver> <param> [<dep-list>] |
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* |
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* @param pClient Pointer to client instance structure. |
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* @param pszAudioDriver Audio driver type string (e.g. "ALSA"). |
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* @param pszParam Audio driver parameter name. |
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* @param pDepList Pointer to specific dependencies parameter list. |
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* |
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* @returns A pointer to a @ref lscp_param_info_t structure, with |
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* the given audio driver parameter information, or NULL in case of failure. |
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*/ |
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lscp_param_info_t *lscp_get_audio_driver_param_info ( lscp_client_t *pClient, const char *pszAudioDriver, const char *pszParam, lscp_param_t *pDepList ) |
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{ |
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lscp_param_info_t *pParamInfo = NULL; |
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|
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if (pClient == NULL) |
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return NULL; |
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if (pszAudioDriver == NULL) |
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return NULL; |
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if (pszParam == NULL) |
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return NULL; |
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if (pDepList == NULL) |
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return NULL; |
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|
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return pParamInfo; |
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} |
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|
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|
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//------------------------------------------------------------------------- |
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// Audio device control functions. |
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|
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/** |
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* Creating an audio output device. |
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* CREATE AUDIO_OUTPUT_DEVICE <audio-output-driver> [<params>] |
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* |
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* @param pClient Pointer to client instance structure. |
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* @param pszAudioDriver Audio driver type string (e.g. "ALSA"). |
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* @param pParams Pointer to specific parameter list. |
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* |
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* @returns The new audio device number identifier on success, |
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* or -1 in case of failure. |
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*/ |
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int lscp_create_audio_device ( lscp_client_t *pClient, const char *pszAudioDriver, lscp_param_t *pParams ) |
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{ |
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int iAudioDevice = -1; |
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|
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if (pClient == NULL) |
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return -1; |
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if (pszAudioDriver == NULL) |
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return -1; |
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if (pParams == NULL) |
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return -1; |
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|
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return iAudioDevice; |
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} |
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|
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|
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/** |
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* Destroying an audio output device. |
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* DESTROY AUDIO_OUTPUT_DEVICE <audio-device-id> |
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* |
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* @param pClient Pointer to client instance structure. |
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* @param iAudioDevice Audio device number identifier. |
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* |
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* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
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*/ |
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lscp_status_t lscp_destroy_audio_device ( lscp_client_t *pClient, int iAudioDevice ) |
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{ |
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lscp_status_t ret = LSCP_FAILED; |
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|
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if (pClient == NULL) |
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return ret; |
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if (iAudioDevice < 0) |
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return ret; |
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|
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return ret; |
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} |
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|
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|
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/** |
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* Getting all created audio output devices. |
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* GET AUDIO_OUTPUT_DEVICES |
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* |
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* @param pClient Pointer to client instance structure. |
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* |
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* @returns An array of audio device number identifiers, |
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* terminated with -1 on success, or NULL in case of failure. |
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*/ |
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int *lscp_get_audio_devices ( lscp_client_t *pClient ) |
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{ |
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int *piAudioDevices = NULL; |
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|
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if (pClient == NULL) |
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return NULL; |
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|
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return piAudioDevices; |
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} |
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|
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|
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/** |
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* Getting current settings of an audio output device. |
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* GET AUDIO_OUTPUT_DEVICE INFO <audio-device-id> |
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* |
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* @param pClient Pointer to client instance structure. |
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* @param iAudioDevice Audio device number identifier. |
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* |
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* @returns A pointer to a @ref lscp_device_info_t structure, with |
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* the given audio device information, or NULL in case of failure. |
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*/ |
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lscp_device_info_t *lscp_get_audio_device_info ( lscp_client_t *pClient, int iAudioDevice ) |
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{ |
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lscp_device_info_t *pDeviceInfo = NULL; |
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|
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if (pClient == NULL) |
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return NULL; |
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if (iAudioDevice < 0) |
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return NULL; |
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|
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return pDeviceInfo; |
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} |
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|
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|
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/** |
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* Changing settings of audio output devices. |
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* SET AUDIO_OUTPUT_DEVICE_PARAMETER <audio-device-id> <param> <value> |
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* |
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* @param pClient Pointer to client instance structure. |
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* @param iAudioDevice Audio device number identifier. |
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* @param pParam Pointer to a key-valued audio device parameter. |
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* |
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* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
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*/ |
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lscp_status_t lscp_set_audio_device_param ( lscp_client_t *pClient, int iAudioDevice, lscp_param_t *pParam ) |
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{ |
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lscp_status_t ret = LSCP_FAILED; |
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|
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if (pClient == NULL) |
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return ret; |
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if (iAudioDevice < 0) |
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return ret; |
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if (pParam == NULL) |
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return ret; |
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|
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return ret; |
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} |
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|
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|
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/** |
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* Getting informations about an audio channel. |
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* GET AUDIO_OUTPUT_CHANNEL INFO <audio-device-id> <audio-channel> |
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* |
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* @param pClient Pointer to client instance structure. |
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* @param iAudioDevice Audio device number identifier. |
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* @param iAudioChannel Audio channel number. |
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* |
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* @returns A pointer to a @ref lscp_device_channel_info_t structure, |
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* with the given audio channel information, or NULL in case of failure. |
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*/ |
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lscp_device_channel_info_t* lscp_get_audio_channel_info ( lscp_client_t *pClient, int iAudioDevice, int iAudioChannel ) |
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{ |
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lscp_device_channel_info_t *pDevChannelInfo = NULL; |
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|
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if (pClient == NULL) |
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return NULL; |
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if (iAudioDevice < 0) |
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return NULL; |
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if (iAudioChannel < 0) |
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return NULL; |
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|
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return pDevChannelInfo; |
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} |
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|
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|
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/** |
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* Getting informations about specific audio channel parameter. |
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* GET AUDIO_OUTPUT_CHANNEL_PARAMETER INFO <audio-device-id> <audio-channel> <param> |
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* |
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* @param pClient Pointer to client instance structure. |
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* @param iAudioDevice Audio device number identifier. |
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* @param iAudioChannel Audio channel number. |
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* @param pszParam Audio channel parameter name. |
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* |
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* @returns A pointer to a @ref lscp_param_info_t structure, with |
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* the given audio channel parameter information, or NULL in case of failure. |
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*/ |
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lscp_param_info_t* lscp_get_audio_channel_param_info ( lscp_client_t *pClient, int iAudioDevice, int iAudioChannel, const char *pszParam ) |
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{ |
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lscp_param_info_t *pParamInfo = NULL; |
312 |
|
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if (pClient == NULL) |
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return NULL; |
315 |
if (iAudioDevice < 0) |
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return NULL; |
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if (iAudioChannel < 0) |
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return NULL; |
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if (pszParam == NULL) |
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return NULL; |
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|
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return pParamInfo; |
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} |
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|
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|
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/** |
327 |
* Changing settings of audio output channels. |
328 |
* SET AUDIO_OUTPUT_CHANNEL_PARAMETER <audio-device-id> <audio-channel> <param> <value> |
329 |
* |
330 |
* @param pClient Pointer to client instance structure. |
331 |
* @param iAudioDevice Audio device number identifier. |
332 |
* @param iAudioChannel Audio channel number. |
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* @param pParam Pointer to a key-valued audio channel parameter. |
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* |
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* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
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*/ |
337 |
lscp_status_t lscp_set_audio_channel_param ( lscp_client_t *pClient, int iAudioDevice, int iAudioChannel, lscp_param_t *pParam ) |
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{ |
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lscp_status_t ret = LSCP_FAILED; |
340 |
|
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if (pClient == NULL) |
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return ret; |
343 |
if (iAudioDevice < 0) |
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return ret; |
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if (iAudioChannel < 0) |
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return ret; |
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if (pParam == NULL) |
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return ret; |
349 |
|
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return ret; |
351 |
} |
352 |
|
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|
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//------------------------------------------------------------------------- |
355 |
// MIDI driver control functions. |
356 |
|
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/** |
358 |
* Getting all available MIDI input drivers. |
359 |
* GET AVAILABLE_MIDI_INPUT_DRIVERS |
360 |
* |
361 |
* @param pClient Pointer to client instance structure. |
362 |
* |
363 |
* @returns A NULL terminated array of MIDI input driver type |
364 |
* name strings, or NULL in case of failure. |
365 |
*/ |
366 |
const char** lscp_get_available_midi_drivers ( lscp_client_t *pClient ) |
367 |
{ |
368 |
const char *pszSeps = ","; |
369 |
|
370 |
if (pClient->midi_drivers) { |
371 |
lscp_szsplit_destroy(pClient->midi_drivers); |
372 |
pClient->midi_drivers = NULL; |
373 |
} |
374 |
|
375 |
if (lscp_client_query(pClient, "GET AVAILABLE_MIDI_INPUT_DRIVERS\r\n") == LSCP_OK) |
376 |
pClient->midi_drivers = lscp_szsplit_create(lscp_client_get_result(pClient), pszSeps); |
377 |
|
378 |
return (const char **) pClient->midi_drivers; |
379 |
} |
380 |
|
381 |
|
382 |
/** |
383 |
* Getting informations about a specific MIDI input driver. |
384 |
* GET MIDI_INPUT_DRIVER INFO <midi-input-type> |
385 |
* |
386 |
* @param pClient Pointer to client instance structure. |
387 |
* @param pszMidiDriver MIDI driver type string (e.g. "ALSA"). |
388 |
* |
389 |
* @returns A pointer to a @ref lscp_driver_info_t structure, with |
390 |
* the given MIDI driver information, or NULL in case of failure. |
391 |
*/ |
392 |
lscp_driver_info_t* lscp_get_midi_driver_info ( lscp_client_t *pClient, const char *pszMidiDriver ) |
393 |
{ |
394 |
char szQuery[LSCP_BUFSIZ]; |
395 |
|
396 |
if (pszMidiDriver == NULL) |
397 |
return NULL; |
398 |
|
399 |
sprintf(szQuery, "GET MIDI_INPUT_DRIVER INFO %s\r\n", pszMidiDriver); |
400 |
return _lscp_driver_info_query(pClient, &(pClient->midi_info), szQuery); |
401 |
} |
402 |
|
403 |
|
404 |
/** |
405 |
* Getting informations about specific MIDI input driver parameter. |
406 |
* GET MIDI_INPUT_DRIVER_PARAMETER INFO <midi-input-driver> <param> [<dep-list>] |
407 |
* |
408 |
* @param pClient Pointer to client instance structure. |
409 |
* @param pszMidiDriver MIDI driver type string (e.g. "ALSA"). |
410 |
* @param pszParam MIDI driver parameter name. |
411 |
* @param pDepList Pointer to specific dependencies parameter list. |
412 |
* |
413 |
* @returns A pointer to a @ref lscp_param_info_t structure, with |
414 |
* the given MIDI driver parameter information, or NULL in case of failure. |
415 |
* |
416 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
417 |
*/ |
418 |
lscp_param_info_t *lscp_get_midi_driver_param_info ( lscp_client_t *pClient, const char *pszMidiDriver, const char *pszParam, lscp_param_t *pDepList ) |
419 |
{ |
420 |
lscp_param_info_t *pParamInfo = NULL; |
421 |
|
422 |
if (pClient == NULL) |
423 |
return NULL; |
424 |
if (pszMidiDriver == NULL) |
425 |
return NULL; |
426 |
if (pszParam == NULL) |
427 |
return NULL; |
428 |
if (pDepList == NULL) |
429 |
return NULL; |
430 |
|
431 |
return pParamInfo; |
432 |
} |
433 |
|
434 |
|
435 |
//------------------------------------------------------------------------- |
436 |
// MIDI device control functions. |
437 |
|
438 |
/** |
439 |
* Creating a MIDI input device. |
440 |
* CREATE MIDI_INPUT_DEVICE <midi-input-driver> [<params>] |
441 |
* |
442 |
* @param pClient Pointer to client instance structure. |
443 |
* @param pszMidiDriver MIDI driver type string (e.g. "ALSA"). |
444 |
* @param pParams Pointer to specific parameter list. |
445 |
* |
446 |
* @returns The new audio device number identifier on success, |
447 |
* or -1 in case of failure. |
448 |
*/ |
449 |
int lscp_create_midi_device ( lscp_client_t *pClient, const char *pszMidiDriver, lscp_param_t *pParams ) |
450 |
{ |
451 |
int iMidiDevice = -1; |
452 |
|
453 |
if (pClient == NULL) |
454 |
return -1; |
455 |
if (pszMidiDriver == NULL) |
456 |
return -1; |
457 |
if (pParams == NULL) |
458 |
return -1; |
459 |
|
460 |
return iMidiDevice; |
461 |
} |
462 |
|
463 |
|
464 |
/** |
465 |
* Destroying a MIDI input device. |
466 |
* DESTROY MIDI_INPUT_DEVICE <midi-device-id> |
467 |
* |
468 |
* @param pClient Pointer to client instance structure. |
469 |
* @param iMidiDevice MIDI device number identifier. |
470 |
* |
471 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
472 |
*/ |
473 |
lscp_status_t lscp_destroy_midi_device ( lscp_client_t *pClient, int iMidiDevice ) |
474 |
{ |
475 |
lscp_status_t ret = LSCP_FAILED; |
476 |
|
477 |
if (pClient == NULL) |
478 |
return ret; |
479 |
if (iMidiDevice < 0) |
480 |
return ret; |
481 |
|
482 |
return ret; |
483 |
} |
484 |
|
485 |
|
486 |
/** |
487 |
* Getting all created MIDI input devices. |
488 |
* GET MIDI_INPUT_DEVICES |
489 |
* |
490 |
* @param pClient Pointer to client instance structure. |
491 |
* |
492 |
* @returns An array of MIDI device number identifiers, |
493 |
* terminated with -1 on success, or NULL in case of failure. |
494 |
*/ |
495 |
int *lscp_get_midi_devices ( lscp_client_t *pClient ) |
496 |
{ |
497 |
int *piMidiDevices = NULL; |
498 |
|
499 |
if (pClient == NULL) |
500 |
return NULL; |
501 |
|
502 |
return piMidiDevices; |
503 |
} |
504 |
|
505 |
|
506 |
/** |
507 |
* Getting current settings of a MIDI input device. |
508 |
* GET MIDI_INPUT_DEVICE INFO <midi-device-id> |
509 |
* |
510 |
* @param pClient Pointer to client instance structure. |
511 |
* @param iMidiDevice MIDI device number identifier. |
512 |
* |
513 |
* @returns A pointer to a @ref lscp_device_info_t structure, with |
514 |
* the given MIDI device information, or NULL in case of failure. |
515 |
*/ |
516 |
lscp_device_info_t* lscp_get_midi_device_info ( lscp_client_t *pClient, int iMidiDevice ) |
517 |
{ |
518 |
lscp_device_info_t *pDeviceInfo = NULL; |
519 |
|
520 |
if (pClient == NULL) |
521 |
return NULL; |
522 |
if (iMidiDevice < 0) |
523 |
return NULL; |
524 |
|
525 |
return pDeviceInfo; |
526 |
} |
527 |
|
528 |
|
529 |
/** |
530 |
* Changing settings of MIDI input devices. |
531 |
* SET MIDI_INPUT_DEVICE_PARAMETER <midi-device-id> <param> <value> |
532 |
* |
533 |
* @param pClient Pointer to client instance structure. |
534 |
* @param iMidiDevice MIDI device number identifier. |
535 |
* @param pParam Pointer to a key-valued MIDI device parameter. |
536 |
* |
537 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
538 |
*/ |
539 |
lscp_status_t lscp_set_midi_device_param ( lscp_client_t *pClient, int iMidiDevice, lscp_param_t *pParam ) |
540 |
{ |
541 |
lscp_status_t ret = LSCP_FAILED; |
542 |
|
543 |
if (pClient == NULL) |
544 |
return ret; |
545 |
if (iMidiDevice < 0) |
546 |
return ret; |
547 |
if (pParam == NULL) |
548 |
return ret; |
549 |
|
550 |
return ret; |
551 |
} |
552 |
|
553 |
|
554 |
/** |
555 |
* Getting informations about a MIDI port. |
556 |
* GET MIDI_INPUT_PORT INFO <midi-device-id> <midi-port> |
557 |
* |
558 |
* @param pClient Pointer to client instance structure. |
559 |
* @param iMidiDevice MIDI device number identifier. |
560 |
* @param iMidiPort MIDI port number. |
561 |
* |
562 |
* @returns A pointer to a @ref lscp_device_channel_info_t structure, |
563 |
* with the given MIDI port information, or NULL in case of failure. |
564 |
*/ |
565 |
lscp_device_channel_info_t* lscp_get_midi_port_info ( lscp_client_t *pClient, int iMidiDevice, int iMidiPort ) |
566 |
{ |
567 |
lscp_device_channel_info_t *pDevChannelInfo = NULL; |
568 |
|
569 |
if (pClient == NULL) |
570 |
return NULL; |
571 |
if (iMidiDevice < 0) |
572 |
return NULL; |
573 |
if (iMidiPort < 0) |
574 |
return NULL; |
575 |
|
576 |
return pDevChannelInfo; |
577 |
} |
578 |
|
579 |
|
580 |
/** |
581 |
* Getting informations about specific MIDI port parameter. |
582 |
* GET MIDI_INPUT_PORT_PARAMETER INFO <midi-device-id> <midi-port> <param> |
583 |
* |
584 |
* @param pClient Pointer to client instance structure. |
585 |
* @param iMidiDevice MIDI device number identifier. |
586 |
* @param iMidiPort MIDI port number. |
587 |
* @param pszParam MIDI port parameter name. |
588 |
* |
589 |
* @returns A pointer to a @ref lscp_param_info_t structure, with |
590 |
* the given MIDI port parameter information, or NULL in case of failure. |
591 |
*/ |
592 |
lscp_param_info_t* lscp_get_midi_port_param_info ( lscp_client_t *pClient, int iMidiDevice, int iMidiPort, const char *pszParam ) |
593 |
{ |
594 |
lscp_param_info_t *pParamInfo = NULL; |
595 |
|
596 |
if (pClient == NULL) |
597 |
return NULL; |
598 |
if (iMidiDevice < 0) |
599 |
return NULL; |
600 |
if (iMidiPort < 0) |
601 |
return NULL; |
602 |
if (pszParam == NULL) |
603 |
return NULL; |
604 |
|
605 |
return pParamInfo; |
606 |
} |
607 |
|
608 |
|
609 |
/** |
610 |
* Changing settings of MIDI input ports. |
611 |
* SET MIDI_INPUT_PORT_PARAMETER <midi-device-id> <midi-port> <param> <value> |
612 |
* |
613 |
* @param pClient Pointer to client instance structure. |
614 |
* @param iMidiDevice MIDI device number identifier. |
615 |
* @param iMidiPort MIDI port number. |
616 |
* @param pParam Pointer to a key-valued MIDI port parameter. |
617 |
* |
618 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
619 |
*/ |
620 |
lscp_status_t lscp_set_midi_port_param ( lscp_client_t *pClient, int iMidiDevice, int iMidiPort, lscp_param_t *pParam ) |
621 |
{ |
622 |
lscp_status_t ret = LSCP_FAILED; |
623 |
|
624 |
if (pClient == NULL) |
625 |
return ret; |
626 |
if (iMidiDevice < 0) |
627 |
return ret; |
628 |
if (iMidiPort < 0) |
629 |
return ret; |
630 |
if (pParam == NULL) |
631 |
return ret; |
632 |
|
633 |
return ret; |
634 |
} |
635 |
|
636 |
// end of device.c |
637 |
|