mirror of
https://github.com/cookiengineer/audacity
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58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/* finddefault.c -- find_default_device() implementation
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Roger Dannenberg, June 2008
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "portmidi.h"
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#include "pmutil.h"
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#include "pminternal.h"
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#include "pmmacosxcm.h"
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#include "readbinaryplist.h"
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/* Parse preference files, find default device, search devices --
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This parses the preference file(s) once for input and once for
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output, which is inefficient but much simpler to manage. Note
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that using the readbinaryplist.c module, you cannot keep two
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plist files (user and system) open at once (due to a simple
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memory management scheme).
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*/
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PmDeviceID find_default_device(char *path, int input, PmDeviceID id)
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/* path -- the name of the preference we are searching for
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input -- true iff this is an input device
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id -- current default device id
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returns matching device id if found, otherwise id
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*/
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{
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static char *pref_file = "com.apple.java.util.prefs.plist";
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char *pref_str = NULL;
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// read device preferences
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value_ptr prefs = bplist_read_user_pref(pref_file);
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if (prefs) {
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value_ptr pref_val = value_dict_lookup_using_path(prefs, path);
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if (pref_val) {
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pref_str = value_get_asciistring(pref_val);
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}
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}
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if (!pref_str) {
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bplist_free_data(); /* look elsewhere */
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prefs = bplist_read_system_pref(pref_file);
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if (prefs) {
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value_ptr pref_val = value_dict_lookup_using_path(prefs, path);
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if (pref_val) {
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pref_str = value_get_asciistring(pref_val);
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}
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}
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}
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if (pref_str) { /* search devices for match */
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int i = pm_find_default_device(pref_str, input);
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if (i != pmNoDevice) {
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id = i;
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}
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}
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if (prefs) {
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bplist_free_data();
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}
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return id;
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}
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