diff options
Diffstat (limited to 'lib/libossmix/libossmix_cache.c')
| -rw-r--r-- | lib/libossmix/libossmix_cache.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/lib/libossmix/libossmix_cache.c b/lib/libossmix/libossmix_cache.c new file mode 100644 index 0000000..a15fbf4 --- /dev/null +++ b/lib/libossmix/libossmix_cache.c @@ -0,0 +1,210 @@ +/* + * + * This file is part of Open Sound System. + * + * Copyright (C) 4Front Technologies 1996-2008. + * + * This this source file is released under GPL v2 license (no other versions). + * See the COPYING file included in the main directory of this source + * distribution for the license terms and conditions. + * + */ +/* + * Settings cache for libossmix + */ +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <soundcard.h> +#include <fcntl.h> +#include <string.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <fcntl.h> +#include <errno.h> +#include <netdb.h> + +#define OSSMIX_REMOTE + +#include "libossmix.h" +#include "libossmix_impl.h" + +static local_mixer_t *mixers[MAX_TMP_MIXER] = { NULL }; + +void +mixc_add_node (int mixernum, int node, oss_mixext * ext) +{ + local_mixer_t *lmixer; + oss_mixext *lnode; + + if (mixers[mixernum] == NULL) + { + int i; + + mixers[mixernum] = lmixer = malloc (sizeof (*lmixer)); + if (lmixer == NULL) + { + fprintf (stderr, "mixc_add_node: Out of memory\n"); + exit (EXIT_FAILURE); + } + + memset (lmixer, 0, sizeof (*lmixer)); + for (i = 0; i < MAX_TMP_NODES; i++) + lmixer->values[i] = -1; // Invalid + } + else + lmixer = mixers[mixernum]; + + if (ext->ctrl >= lmixer->nrext) + lmixer->nrext = ext->ctrl + 1; + + if (node >= MAX_TMP_NODES) + { + fprintf (stderr, "mixc_add_node: Node number too large %d\n", node); + exit (EXIT_FAILURE); + } + + lnode = lmixer->nodes[node]; + + if (lnode == NULL) + { + lmixer->nodes[node] = lnode = malloc (sizeof (*lnode)); + + if (lnode == NULL) + { + fprintf (stderr, "mixc_get_node: Out of memory\n"); + exit (EXIT_FAILURE); + } + } + + memcpy (lnode, ext, sizeof (*ext)); + +} + +oss_mixext * +mixc_get_node (int mixernum, int node) +{ + local_mixer_t *lmixer; + oss_mixext *lnode; + + if (mixers[mixernum] == NULL) + { + return NULL; + } + lmixer = mixers[mixernum]; + + if (node >= MAX_TMP_NODES) + { + fprintf (stderr, "mixc_get_node: Node number too large %d\n", node); + exit (EXIT_FAILURE); + } + + lnode = lmixer->nodes[node]; + + return lnode; +} + +void +mixc_clear_changeflags(int mixernum) +{ + local_mixer_t *lmixer; + + if (mixers[mixernum] == NULL) + { + return; + } + lmixer = mixers[mixernum]; + + memset(lmixer->changemask, 0, sizeof(lmixer->changemask)); +} + +void +mixc_set_value (int mixernum, int node, int value) +{ + local_mixer_t *lmixer; + + if (mixers[mixernum] == NULL) + { + return; + } + lmixer = mixers[mixernum]; + + if (node >= MAX_TMP_NODES) + { + fprintf (stderr, "mixc_set_value: Node number too large %d\n", node); + exit (EXIT_FAILURE); + } + + if (lmixer->values[node] != value) + lmixer->changemask[node / 8] |= (1 << (node % 8)); + + lmixer->values[node] = value; +} + +int +mixc_get_value (int mixernum, int node) +{ + local_mixer_t *lmixer; + + if (mixers[mixernum] == NULL) + { + return -1; + } + lmixer = mixers[mixernum]; + + if (node >= MAX_TMP_NODES) + { + fprintf (stderr, "mixc_get_value: Node number too large %d\n", node); + exit (EXIT_FAILURE); + } + lmixer->changemask[node / 8] &= ~(1 << (node % 8)); + + return lmixer->values[node]; +} + +int +mixc_get_all_values (int mixernum, value_packet_t value_packet, int changecheck) +{ + int i, n = 0; + oss_mixext *lnode; + local_mixer_t *lmixer; + + if (mixers[mixernum] == NULL) + { + fprintf (stderr, "mixc_get_all_values: Mixer %d doesn't exist\n", + mixernum); + return 0; + } + lmixer = mixers[mixernum]; + + for (i = 0; i < lmixer->nrext; i++) + { + lnode = lmixer->nodes[i]; + + if (lnode == NULL) + { + fprintf (stderr, "mixc_get_all_values: Mixer %d, node %d == NULL\n", + mixernum, i); + continue; + } + + if (changecheck) // Not changed since the last time + if (!(lmixer->changemask[i / 8] & (1 << (i % 8)) )) + continue; + + if (lnode->type != MIXT_DEVROOT && lnode->type != MIXT_GROUP + && lnode->type != MIXT_MARKER) + { + value_packet[n].node = i; + value_packet[n].value = lmixer->values[i]; + + lmixer->changemask[i / 8] &= ~(1 << (i % 8)); + +//printf("Send %d = %08x\n", i, lmixer->values[i]); + n++; + } + } + + return n; +} |