/[svn]/liblscp/trunk/src/client.c
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Diff of /liblscp/trunk/src/client.c

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revision 921 by capela, Sun Sep 24 12:55:48 2006 UTC revision 946 by capela, Mon Nov 27 18:33:02 2006 UTC
# Line 340  lscp_client_t* lscp_client_create ( cons Line 340  lscp_client_t* lscp_client_create ( cons
340      lscp_server_info_init(&(pClient->server_info));      lscp_server_info_init(&(pClient->server_info));
341      lscp_engine_info_init(&(pClient->engine_info));      lscp_engine_info_init(&(pClient->engine_info));
342      lscp_channel_info_init(&(pClient->channel_info));      lscp_channel_info_init(&(pClient->channel_info));
343        lscp_midi_instrument_info_init(&(pClient->midi_instrument_info));
344      // Initialize error stuff.      // Initialize error stuff.
345      pClient->pszResult = NULL;      pClient->pszResult = NULL;
346      pClient->iErrno = -1;      pClient->iErrno = -1;
# Line 400  lscp_status_t lscp_client_destroy ( lscp Line 401  lscp_status_t lscp_client_destroy ( lscp
401      lscp_mutex_lock(pClient->mutex);      lscp_mutex_lock(pClient->mutex);
402    
403      // Free up all cached members.      // Free up all cached members.
404        lscp_midi_instrument_info_free(&(pClient->midi_instrument_info));
405      lscp_channel_info_free(&(pClient->channel_info));      lscp_channel_info_free(&(pClient->channel_info));
406      lscp_engine_info_free(&(pClient->engine_info));      lscp_engine_info_free(&(pClient->engine_info));
407      lscp_server_info_free(&(pClient->server_info));      lscp_server_info_free(&(pClient->server_info));
# Line 1275  lscp_buffer_fill_t *lscp_get_channel_buf Line 1277  lscp_buffer_fill_t *lscp_get_channel_buf
1277   *  @param pClient          Pointer to client instance structure.   *  @param pClient          Pointer to client instance structure.
1278   *  @param iSamplerChannel  Sampler channel number.   *  @param iSamplerChannel  Sampler channel number.
1279   *  @param pszAudioDriver   Audio output driver type (e.g. "ALSA" or "JACK").   *  @param pszAudioDriver   Audio output driver type (e.g. "ALSA" or "JACK").
1280     *
1281     *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1282   */   */
1283  lscp_status_t lscp_set_channel_audio_type ( lscp_client_t *pClient, int iSamplerChannel, const char *pszAudioDriver )  lscp_status_t lscp_set_channel_audio_type ( lscp_client_t *pClient, int iSamplerChannel, const char *pszAudioDriver )
1284  {  {
# Line 1295  lscp_status_t lscp_set_channel_audio_typ Line 1299  lscp_status_t lscp_set_channel_audio_typ
1299   *  @param pClient          Pointer to client instance structure.   *  @param pClient          Pointer to client instance structure.
1300   *  @param iSamplerChannel  Sampler channel number.   *  @param iSamplerChannel  Sampler channel number.
1301   *  @param iAudioDevice     Audio output device number identifier.   *  @param iAudioDevice     Audio output device number identifier.
1302     *
1303     *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1304   */   */
1305  lscp_status_t lscp_set_channel_audio_device ( lscp_client_t *pClient, int iSamplerChannel, int iAudioDevice )  lscp_status_t lscp_set_channel_audio_device ( lscp_client_t *pClient, int iSamplerChannel, int iAudioDevice )
1306  {  {
# Line 1360  lscp_status_t lscp_set_channel_midi_type Line 1366  lscp_status_t lscp_set_channel_midi_type
1366   *  @param pClient          Pointer to client instance structure.   *  @param pClient          Pointer to client instance structure.
1367   *  @param iSamplerChannel  Sampler channel number.   *  @param iSamplerChannel  Sampler channel number.
1368   *  @param iMidiDevice      MIDI input device number identifier.   *  @param iMidiDevice      MIDI input device number identifier.
1369     *
1370     *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1371   */   */
1372  lscp_status_t lscp_set_channel_midi_device ( lscp_client_t *pClient, int iSamplerChannel, int iMidiDevice )  lscp_status_t lscp_set_channel_midi_device ( lscp_client_t *pClient, int iSamplerChannel, int iMidiDevice )
1373  {  {
# Line 1578  lscp_server_info_t *lscp_get_server_info Line 1586  lscp_server_info_t *lscp_get_server_info
1586  }  }
1587    
1588    
1589    /**
1590     *  Current total number of active voices:
1591     *  GET TOTAL_VOICE_COUNT
1592     *
1593     *  @param pClient  Pointer to client instance structure.
1594     *
1595     *  @returns The total number of voices currently active,
1596     *  -1 in case of failure.
1597     */
1598    int lscp_get_total_voice_count ( lscp_client_t *pClient )
1599    {
1600        int iVoiceCount = -1;
1601    
1602        // Lock this section up.
1603        lscp_mutex_lock(pClient->mutex);
1604    
1605        if (lscp_client_call(pClient, "GET TOTAL_VOICE_COUNT\r\n") == LSCP_OK)
1606            iVoiceCount = atoi(lscp_client_get_result(pClient));
1607    
1608        // Unlock this section down.
1609        lscp_mutex_unlock(pClient->mutex);
1610    
1611        return iVoiceCount;
1612    }
1613    
1614    
1615    /**
1616     *  Maximum amount of active voices:
1617     *  GET TOTAL_VOICE_COUNT_MAX
1618     *
1619     *  @param pClient  Pointer to client instance structure.
1620     *
1621     *  @returns The maximum amount of voices currently active,
1622     *  -1 in case of failure.
1623     */
1624    int lscp_get_total_voice_count_max ( lscp_client_t *pClient )
1625    {
1626        int iVoiceCount = -1;
1627    
1628        // Lock this section up.
1629        lscp_mutex_lock(pClient->mutex);
1630    
1631        if (lscp_client_call(pClient, "GET TOTAL_VOICE_COUNT_MAX\r\n") == LSCP_OK)
1632            iVoiceCount = atoi(lscp_client_get_result(pClient));
1633    
1634        // Unlock this section down.
1635        lscp_mutex_unlock(pClient->mutex);
1636    
1637        return iVoiceCount;
1638    }
1639    
1640    
1641    /**
1642     *  Create or replace a MIDI instrumnet map entry:
1643     *  MAP MIDI_INSTRUMENT <midi-bank-msb> <midi-bank-lsb> <midi-prog>
1644     *      <engine-name> <filename> <instr-index> <volume> <load-mode> [<name>]
1645     *
1646     *  @param pClient          Pointer to client instance structure.
1647     *  @param pMidiInstr       MIDI instrument bank and program parameter key.
1648     *  @param pszEngineName    Engine name.
1649     *  @param pszFileName      Instrument file name.
1650     *  @param iInstrIndex      Instrument index number.
1651     *  @param fVolume          Reflects the master volume of the instrument as
1652     *                          a positive floating point number, where a value
1653     *                          less than 1.0 for attenuation, and greater than
1654     *                          1.0 for amplification.
1655     *  @param load_mode        Instrument load life-time strategy, either
1656     *                          @ref LSCP_LOAD_DEFAULT, or
1657     *                          @ref LSCP_LOAD_ON_DEMAND, or
1658     *                          @ref LSCP_LOAD_ON_DEMAND_HOLD, or
1659     *                          @ref LSCP_LOAD_PERSISTENT.
1660     *  @param pszName          Instrument custom name for the map entry.
1661     *
1662     *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1663     */
1664    lscp_status_t lscp_map_midi_instrument ( lscp_client_t *pClient, lscp_midi_instrument_t *pMidiInstr, const char *pszEngineName, const char *pszFileName, int iInstrIndex, float fVolume, lscp_load_mode_t load_mode, const char *pszName )
1665    {
1666        char szQuery[LSCP_BUFSIZ];
1667    
1668        if (pMidiInstr->bank_msb < 0 || pMidiInstr->bank_msb > 127)
1669            return LSCP_FAILED;
1670        if (pMidiInstr->bank_lsb < 0 || pMidiInstr->bank_lsb > 127)
1671            return LSCP_FAILED;
1672        if (pMidiInstr->program < 0 || pMidiInstr->program > 127)
1673            return LSCP_FAILED;
1674        if (pszEngineName == NULL || pszFileName == NULL)
1675            return LSCP_FAILED;
1676    
1677            if (fVolume < 0.0f)
1678                    fVolume = 1.0f;
1679    
1680        sprintf(szQuery, "MAP MIDI_INSTRUMENT %d %d %d %s '%s' %d %g",
1681                    pMidiInstr->bank_msb, pMidiInstr->bank_lsb, pMidiInstr->program,
1682                    pszEngineName, pszFileName, iInstrIndex, fVolume);
1683    
1684            switch (load_mode) {
1685            case LSCP_LOAD_PERSISTENT:
1686                    strcat(szQuery, " PERSISTENT");
1687                    break;
1688            case LSCP_LOAD_ON_DEMAND_HOLD:
1689                    strcat(szQuery, " ON_DEMAND_HOLD");
1690                    break;
1691            case LSCP_LOAD_ON_DEMAND:
1692                    strcat(szQuery, " ON_DEMAND_HOLD");
1693                    break;
1694            case LSCP_LOAD_DEFAULT:
1695            default:
1696                    break;
1697            }
1698    
1699            if (pszName)
1700                    sprintf(szQuery + strlen(szQuery), " '%s'", pszName);
1701    
1702            strcat(szQuery, "\r\n");
1703    
1704        return lscp_client_query(pClient, szQuery);
1705    }
1706    
1707    
1708    /**
1709     *  Remove an entry from the MIDI instrument map:
1710     *  UNMAP MIDI_INSTRUMENT <midi-bank-msb> <midi-bank-lsb> <midi-prog>
1711     *
1712     *  @param pClient      Pointer to client instance structure.
1713     *  @param pMidiInstr   MIDI instrument bank and program parameter key.
1714     *
1715     *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1716     */
1717    lscp_status_t lscp_unmap_midi_instrument ( lscp_client_t *pClient, lscp_midi_instrument_t *pMidiInstr )
1718    {
1719        char szQuery[LSCP_BUFSIZ];
1720    
1721        if (pMidiInstr->bank_msb < 0 || pMidiInstr->bank_msb > 127)
1722            return LSCP_FAILED;
1723        if (pMidiInstr->bank_lsb < 0 || pMidiInstr->bank_lsb > 127)
1724            return LSCP_FAILED;
1725        if (pMidiInstr->program < 0 || pMidiInstr->program > 127)
1726            return LSCP_FAILED;
1727    
1728        sprintf(szQuery, "UNMAP MIDI_INSTRUMENT %d %d %d\r\n",
1729                    pMidiInstr->bank_msb, pMidiInstr->bank_lsb, pMidiInstr->program);
1730    
1731        return lscp_client_query(pClient, szQuery);
1732    }
1733    
1734    
1735    /**
1736     *  Get the total count of MIDI instrument map entries:
1737     *  GET MIDI_INSTRUMENTS
1738     *
1739     *  @param pClient  Pointer to client instance structure.
1740     *
1741     *  @returns The current total number of MIDI instrument map entries
1742     *  on success, -1 otherwise.
1743     */
1744    int lscp_get_midi_instruments ( lscp_client_t *pClient )
1745    {
1746        int iInstruments = -1;
1747    
1748        // Lock this section up.
1749        lscp_mutex_lock(pClient->mutex);
1750    
1751        if (lscp_client_call(pClient, "GET MIDI_INSTRUMENTS\r\n") == LSCP_OK)
1752            iInstruments = atoi(lscp_client_get_result(pClient));
1753    
1754        // Unlock this section down.
1755        lscp_mutex_unlock(pClient->mutex);
1756    
1757        return iInstruments;
1758    }
1759    
1760    
1761    /**
1762     *  Getting information about a MIDI instrument map entry:
1763     *  GET MIDI_INSTRUMENT INFO <midi-bank-msb> <midi-bank-lsb> <midi-prog>
1764     *
1765     *  @param pClient      Pointer to client instance structure.
1766     *  @param pMidiInstr   MIDI instrument bank and program parameter key.
1767     *
1768     *  @returns A pointer to a @ref lscp_midi_instrument_info_t structure,
1769     *  with all the information of the given MIDI instrument map entry,
1770     *  or NULL in case of failure.
1771     */
1772    lscp_midi_instrument_info_t *lscp_get_midi_instrument_info ( lscp_client_t *pClient, lscp_midi_instrument_t *pMidiInstr )
1773    {
1774        lscp_midi_instrument_info_t *pInstrInfo;
1775        char szQuery[LSCP_BUFSIZ];
1776        const char *pszResult;
1777        const char *pszSeps = ":";
1778        const char *pszCrlf = "\r\n";
1779        char *pszToken;
1780        char *pch;
1781    
1782        if (pMidiInstr->bank_msb < 0 || pMidiInstr->bank_msb > 127)
1783            return NULL;
1784        if (pMidiInstr->bank_lsb < 0 || pMidiInstr->bank_lsb > 127)
1785            return NULL;
1786        if (pMidiInstr->program < 0 || pMidiInstr->program > 127)
1787            return NULL;
1788    
1789        // Lock this section up.
1790        lscp_mutex_lock(pClient->mutex);
1791    
1792        pInstrInfo = &(pClient->midi_instrument_info);
1793        lscp_midi_instrument_info_reset(pInstrInfo);
1794    
1795        sprintf(szQuery, "GET MIDI_INSTRUMENT INFO %d %d %d\r\n",
1796                    pMidiInstr->bank_msb, pMidiInstr->bank_lsb, pMidiInstr->program);
1797        if (lscp_client_call(pClient, szQuery) == LSCP_OK) {
1798            pszResult = lscp_client_get_result(pClient);
1799            pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch));
1800            while (pszToken) {
1801                if (strcasecmp(pszToken, "NAME") == 0) {
1802                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1803                    if (pszToken)
1804                        lscp_unquote_dup(&(pInstrInfo->name), &pszToken);
1805                }
1806                else if (strcasecmp(pszToken, "ENGINE_NAME") == 0) {
1807                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1808                    if (pszToken)
1809                        lscp_unquote_dup(&(pInstrInfo->engine_name), &pszToken);
1810                }
1811                else if (strcasecmp(pszToken, "INSTRUMENT_FILE") == 0) {
1812                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1813                    if (pszToken)
1814                        lscp_unquote_dup(&(pInstrInfo->instrument_file), &pszToken);
1815                }
1816                else if (strcasecmp(pszToken, "INSTRUMENT_NR") == 0) {
1817                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1818                    if (pszToken)
1819                        pInstrInfo->instrument_nr = atoi(lscp_ltrim(pszToken));
1820                }
1821                else if (strcasecmp(pszToken, "INSTRUMENT_NAME") == 0) {
1822                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1823                    if (pszToken)
1824                        lscp_unquote_dup(&(pInstrInfo->instrument_name), &pszToken);
1825                }
1826                else if (strcasecmp(pszToken, "LOAD_MODE") == 0) {
1827                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1828                    if (pszToken) {
1829                        pszToken = lscp_ltrim(pszToken);
1830                        if (strcasecmp(pszToken, "ON_DEMAND") == 0)
1831                            pInstrInfo->load_mode = LSCP_LOAD_ON_DEMAND;
1832                        else
1833                        if (strcasecmp(pszToken, "ON_DEMAND_HOLD") == 0)
1834                            pInstrInfo->load_mode = LSCP_LOAD_ON_DEMAND_HOLD;
1835                        else
1836                        if (strcasecmp(pszToken, "PERSISTENT") == 0)
1837                            pInstrInfo->load_mode = LSCP_LOAD_PERSISTENT;
1838                        else
1839                            pInstrInfo->load_mode = LSCP_LOAD_DEFAULT;
1840                    }
1841                }
1842                else if (strcasecmp(pszToken, "VOLUME") == 0) {
1843                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1844                    if (pszToken)
1845                        pInstrInfo->volume = (float) atof(lscp_ltrim(pszToken));
1846                }
1847                pszToken = lscp_strtok(NULL, pszSeps, &(pch));
1848                    }
1849        }
1850        else pInstrInfo = NULL;
1851    
1852        // Unlock this section down.
1853        lscp_mutex_unlock(pClient->mutex);
1854    
1855        return pInstrInfo;
1856    }
1857    
1858    
1859    /**
1860     *  Clear the MIDI instrumnet map:
1861     *  CLEAR MIDI_INSTRUMENTS
1862     *
1863     *  @param pClient          Pointer to client instance structure.
1864     *  @param iSamplerChannel  Sampler channel number.
1865     *
1866     *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1867     */
1868    lscp_status_t lscp_clear_midi_instruments  ( lscp_client_t *pClient )
1869    {
1870        return lscp_client_query(pClient, "CLEAR MIDI_INSTRUMENTS\r\n");
1871    }
1872    
1873    
1874  // end of client.c  // end of client.c

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