/[svn]/liblscp/trunk/examples/example_client.c
ViewVC logotype

Annotation of /liblscp/trunk/examples/example_client.c

Parent Directory Parent Directory | Revision Log Revision Log


Revision 167 - (hide annotations) (download)
Fri Jul 2 14:36:43 2004 UTC (18 years, 1 month ago) by capela
File MIME type: text/plain
File size: 8650 byte(s)
* New lscp_get_channel_stream_usage() helper function.

1 capela 103 // example_client.c
2     //
3     /****************************************************************************
4     Copyright (C) 2004, rncbc aka Rui Nuno Capela. All rights reserved.
5    
6     This program is free software; you can redistribute it and/or
7     modify it under the terms of the GNU General Public License
8     as published by the Free Software Foundation; either version 2
9     of the License, or (at your option) any later version.
10    
11     This program is distributed in the hope that it will be useful,
12     but WITHOUT ANY WARRANTY; without even the implied warranty of
13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14     GNU General Public License for more details.
15    
16     You should have received a copy of the GNU General Public License
17     along with this program; if not, write to the Free Software
18     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19    
20     *****************************************************************************/
21    
22     #include "lscp/client.h"
23     #include "lscp/device.h"
24    
25     #include <time.h>
26    
27     #define SERVER_PORT 8888
28    
29     #if defined(WIN32)
30     static WSADATA _wsaData;
31     #endif
32    
33     ////////////////////////////////////////////////////////////////////////
34    
35 capela 147 lscp_status_t client_callback ( lscp_client_t *pClient, lscp_event_t event, const char *pchData, int cchData, void *pvData )
36 capela 103 {
37 capela 147 lscp_status_t ret = LSCP_FAILED;
38 capela 103
39 capela 147 char *pszData = (char *) malloc(cchData + 1);
40     if (pszData) {
41     memcpy(pszData, pchData, cchData);
42     pszData[cchData] = (char) 0;
43     printf("client_callback: event=%s (0x%04x) [%s]\n", lscp_event_to_text(event), (int) event, pszData);
44     free(pszData);
45     ret = LSCP_OK;
46 capela 103 }
47    
48     return ret;
49     }
50    
51     ////////////////////////////////////////////////////////////////////////
52    
53     void client_test_start ( clock_t *pclk ) { *pclk = clock(); }
54     float client_test_elapsed ( clock_t *pclk ) { return (float) ((long) clock() - *pclk) / (float) CLOCKS_PER_SEC; }
55    
56     #define CLIENT_TEST(p, x) { clock_t c; void *v;\
57     printf(#x ":\n"); client_test_start(&c); v = (void *) (x); \
58     printf(" elapsed=%gs\n", client_test_elapsed(&c)); \
59     printf(" ret=%p (%d)\n", v, (int) v); \
60     printf(" errno=%d\n", lscp_client_get_errno(p)); \
61     printf(" result=\"%s\"\n", lscp_client_get_result(p)); }
62    
63     void client_test ( lscp_client_t *pClient )
64     {
65     const char **ppszAudioDrivers, **ppszMidiDrivers, **ppszEngines;
66     const char *pszAudioDriver, *pszMidiDriver, *pszEngine;
67     int iAudioDriver, iMidiDriver, iEngine;
68     int iSamplerChannel;
69    
70     CLIENT_TEST(pClient, ppszAudioDrivers = lscp_get_available_audio_drivers(pClient));
71     if (ppszAudioDrivers == NULL) {
72     fprintf(stderr, "client_test: No audio drivers available.\n");
73     return;
74     }
75    
76     CLIENT_TEST(pClient, ppszMidiDrivers = lscp_get_available_midi_drivers(pClient));
77     if (ppszMidiDrivers == NULL) {
78     fprintf(stderr, "client_test: No MIDI drivers available.\n");
79     return;
80     }
81    
82     CLIENT_TEST(pClient, ppszEngines = lscp_get_available_engines(pClient));
83     if (ppszEngines == NULL) {
84     fprintf(stderr, "client_test: No engines available.\n");
85     return;
86     }
87    
88 capela 125 CLIENT_TEST(pClient, lscp_get_audio_devices(pClient));
89     CLIENT_TEST(pClient, lscp_list_audio_devices(pClient));
90    
91     CLIENT_TEST(pClient, lscp_get_midi_devices(pClient));
92     CLIENT_TEST(pClient, lscp_list_midi_devices(pClient));
93    
94 capela 103 for (iAudioDriver = 0; ppszAudioDrivers[iAudioDriver]; iAudioDriver++) {
95     pszAudioDriver = ppszAudioDrivers[iAudioDriver];
96     printf("\n--- pszAudioDriver=\"%s\" ---\n", pszAudioDriver);
97     CLIENT_TEST(pClient, lscp_get_audio_driver_info(pClient, pszAudioDriver));
98 capela 163 CLIENT_TEST(pClient, lscp_get_audio_driver_param_info(pClient, pszAudioDriver, "active", NULL));
99 capela 103 for (iMidiDriver = 0; ppszMidiDrivers[iMidiDriver]; iMidiDriver++) {
100     pszMidiDriver = ppszMidiDrivers[iMidiDriver];
101     printf("\n--- pszMidiDriver=\"%s\" ---\n", pszMidiDriver);
102     CLIENT_TEST(pClient, lscp_get_midi_driver_info(pClient, pszMidiDriver));
103 capela 163 CLIENT_TEST(pClient, lscp_get_midi_driver_param_info(pClient, pszMidiDriver, "active", NULL));
104 capela 103 for (iEngine = 0; ppszEngines[iEngine]; iEngine++) {
105     pszEngine = ppszEngines[iEngine];
106     printf("\n--- pszEngine=\"%s\" ---\n", pszEngine);
107     CLIENT_TEST(pClient, lscp_get_engine_info(pClient, pszEngine));
108     CLIENT_TEST(pClient, lscp_get_channels(pClient));
109 capela 125 CLIENT_TEST(pClient, lscp_list_channels(pClient));
110 capela 103 CLIENT_TEST(pClient, iSamplerChannel = lscp_add_channel(pClient));
111     printf(">>> iSamplerChannel=\"%d\"\n", iSamplerChannel);
112     CLIENT_TEST(pClient, lscp_get_channel_info(pClient, iSamplerChannel));
113     CLIENT_TEST(pClient, lscp_load_engine(pClient, pszEngine, iSamplerChannel));
114     CLIENT_TEST(pClient, lscp_load_instrument(pClient, "DefaultInstrument.gig", 0, iSamplerChannel));
115     CLIENT_TEST(pClient, lscp_get_channel_voice_count(pClient, iSamplerChannel));
116     CLIENT_TEST(pClient, lscp_get_channel_stream_count(pClient, iSamplerChannel));
117 capela 167 CLIENT_TEST(pClient, lscp_get_channel_stream_usage(pClient, iSamplerChannel));
118 capela 103 CLIENT_TEST(pClient, lscp_get_channel_buffer_fill(pClient, LSCP_USAGE_BYTES, iSamplerChannel));
119     CLIENT_TEST(pClient, lscp_get_channel_buffer_fill(pClient, LSCP_USAGE_PERCENTAGE, iSamplerChannel));
120     CLIENT_TEST(pClient, lscp_set_channel_audio_type(pClient, iSamplerChannel, pszAudioDriver));
121 capela 144 CLIENT_TEST(pClient, lscp_set_channel_audio_device(pClient, iSamplerChannel, 0));
122 capela 103 CLIENT_TEST(pClient, lscp_set_channel_audio_channel(pClient, iSamplerChannel, 0, 1));
123     CLIENT_TEST(pClient, lscp_set_channel_midi_type(pClient, iSamplerChannel, pszMidiDriver));
124 capela 144 CLIENT_TEST(pClient, lscp_set_channel_midi_device(pClient, iSamplerChannel, 0));
125 capela 103 CLIENT_TEST(pClient, lscp_set_channel_midi_channel(pClient, iSamplerChannel, 0));
126     CLIENT_TEST(pClient, lscp_set_channel_midi_port(pClient, iSamplerChannel, 0));
127     CLIENT_TEST(pClient, lscp_set_channel_volume(pClient, iSamplerChannel, 0.5));
128     CLIENT_TEST(pClient, lscp_get_channel_info(pClient, iSamplerChannel));
129     CLIENT_TEST(pClient, lscp_reset_channel(pClient, iSamplerChannel));
130     CLIENT_TEST(pClient, lscp_remove_channel(pClient, iSamplerChannel));
131     printf("\n");
132     }
133     }
134     }
135    
136     }
137    
138     ////////////////////////////////////////////////////////////////////////
139    
140     void client_usage (void)
141     {
142     printf("\n %s %s (Build: %s)\n", lscp_client_package(), lscp_client_version(), lscp_client_build());
143    
144     fputs("\n Available client commands: help, test, exit, quit, subscribe, unsubscribe", stdout);
145     fputs("\n (all else are sent verbatim to server)\n\n", stdout);
146    
147     }
148    
149     void client_prompt (void)
150     {
151     fputs("lscp_client> ", stdout);
152     }
153    
154     int main (int argc, char *argv[] )
155     {
156     lscp_client_t *pClient;
157     char *pszHost = "localhost";
158     char szLine[1024];
159     int cchLine;
160     lscp_status_t ret;
161    
162     #if defined(WIN32)
163     if (WSAStartup(MAKEWORD(1, 1), &_wsaData) != 0) {
164     fprintf(stderr, "lscp_client: WSAStartup failed.\n");
165     return -1;
166     }
167     #endif
168    
169     if (argc > 1)
170     pszHost = argv[1];
171    
172     pClient = lscp_client_create(pszHost, SERVER_PORT, client_callback, NULL);
173     if (pClient == NULL)
174     return -1;
175    
176     client_usage();
177     client_prompt();
178    
179     while (fgets(szLine, sizeof(szLine) - 3, stdin)) {
180    
181     cchLine = strlen(szLine);
182     while (cchLine > 0 && (szLine[cchLine - 1] == '\n' || szLine[cchLine - 1] == '\r'))
183     cchLine--;
184     szLine[cchLine] = '\0';
185    
186     if (strcmp(szLine, "exit") == 0 || strcmp(szLine, "quit") == 0)
187     break;
188     else
189     if (strcmp(szLine, "subscribe") == 0)
190 capela 146 lscp_client_subscribe(pClient, LSCP_EVENT_MISCELLANEOUS);
191 capela 103 else
192     if (strcmp(szLine, "unsubscribe") == 0)
193 capela 146 lscp_client_unsubscribe(pClient, LSCP_EVENT_MISCELLANEOUS);
194 capela 103 else
195     if (strcmp(szLine, "test") == 0)
196     client_test(pClient);
197     else
198     if (cchLine > 0 && strcmp(szLine, "help") != 0) {
199     szLine[cchLine++] = '\r';
200     szLine[cchLine++] = '\n';
201     szLine[cchLine] = '\0';
202     ret = lscp_client_query(pClient, szLine);
203     printf("%s\n(errno = %d)\n", lscp_client_get_result(pClient), lscp_client_get_errno(pClient));
204     if (ret == LSCP_QUIT)
205     break;
206     }
207     else client_usage();
208    
209     client_prompt();
210     }
211    
212     lscp_client_destroy(pClient);
213    
214     #if defined(WIN32)
215     WSACleanup();
216     #endif
217    
218     return 0;
219     }
220    
221     // end of example_client.c

  ViewVC Help
Powered by ViewVC