Reorganised the source tree. We now have src/ with a couple of subdirs:

* daemon/ - Contains the files specific to the polypaudio daemon.
 * modules/ - All loadable modules.
 * polyp/ - Files that are part of the public, application interface or
   are only used in libpolyp.
 * polypcore/ - All other shared files.
 * tests/ - Test programs.
 * utils/ - Utility programs.


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@487 fefdeb5f-60dc-0310-8127-8f9354f1896f

src/polyp/channelmap.c

@@ -0,0 +1,202 @@
+/* $Id$ */
+
+/***
+  This file is part of polypaudio.
+ 
+  polypaudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published
+  by the Free Software Foundation; either version 2 of the License,
+  or (at your option) any later version.
+ 
+  polypaudio is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+ 
+  You should have received a copy of the GNU Lesser General Public License
+  along with polypaudio; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "channelmap.h"
+
+pa_channel_map* pa_channel_map_init(pa_channel_map *m) {
+    unsigned c;
+    assert(m);
+
+    m->channels = 0;
+
+    for (c = 0; c < PA_CHANNELS_MAX; c++)
+        m->map[c] = PA_CHANNEL_POSITION_INVALID;
+
+    return m;
+}
+
+pa_channel_map* pa_channel_map_init_mono(pa_channel_map *m) {
+    assert(m);
+
+    pa_channel_map_init(m);
+
+    m->channels = 1;
+    m->map[0] = PA_CHANNEL_POSITION_MONO;
+    return m;
+}
+
+pa_channel_map* pa_channel_map_init_stereo(pa_channel_map *m) {
+    assert(m);
+
+    pa_channel_map_init(m);
+
+    m->channels = 2;
+    m->map[0] = PA_CHANNEL_POSITION_LEFT;
+    m->map[1] = PA_CHANNEL_POSITION_RIGHT;
+    return m;
+}
+
+pa_channel_map* pa_channel_map_init_auto(pa_channel_map *m, unsigned channels) {
+    assert(m);
+    assert(channels > 0);
+    assert(channels <= PA_CHANNELS_MAX);
+
+    pa_channel_map_init(m);
+
+    m->channels = channels;
+    
+    switch (channels) {
+        case 1:
+            m->map[0] = PA_CHANNEL_POSITION_MONO;
+            return m;
+
+        case 8:
+            m->map[6] = PA_CHANNEL_POSITION_SIDE_LEFT;
+            m->map[7] = PA_CHANNEL_POSITION_SIDE_RIGHT;
+            /* Fall through */
+            
+        case 6:
+            m->map[5] = PA_CHANNEL_POSITION_LFE;
+            /* Fall through */
+            
+        case 5:
+            m->map[4] = PA_CHANNEL_POSITION_FRONT_CENTER;
+            /* Fall through */
+            
+        case 4:
+            m->map[2] = PA_CHANNEL_POSITION_REAR_LEFT;
+            m->map[3] = PA_CHANNEL_POSITION_REAR_RIGHT;
+            /* Fall through */
+            
+        case 2:
+            m->map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
+            m->map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
+            return m;
+            
+        default:
+            return NULL;
+    }
+}
+
+const char* pa_channel_position_to_string(pa_channel_position_t pos) {
+
+    const char *const table[] = {
+        [PA_CHANNEL_POSITION_MONO] = "mono",
+
+        [PA_CHANNEL_POSITION_FRONT_CENTER] = "front-center",
+        [PA_CHANNEL_POSITION_FRONT_LEFT] = "front-left",
+        [PA_CHANNEL_POSITION_FRONT_RIGHT] = "front-right",
+        
+        [PA_CHANNEL_POSITION_REAR_CENTER] = "rear-center",
+        [PA_CHANNEL_POSITION_REAR_LEFT] = "rear-left",
+        [PA_CHANNEL_POSITION_REAR_RIGHT] = "rear-right",
+
+        [PA_CHANNEL_POSITION_LFE] = "lfe",
+
+        [PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = "front-left-of-center",
+        [PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = "front-right-of-center",
+        
+        [PA_CHANNEL_POSITION_SIDE_LEFT] = "side-left",
+        [PA_CHANNEL_POSITION_SIDE_RIGHT] = "side-right",
+
+        [PA_CHANNEL_POSITION_AUX1] = "aux1",
+        [PA_CHANNEL_POSITION_AUX2] = "aux2",
+        [PA_CHANNEL_POSITION_AUX3] = "aux3",
+        [PA_CHANNEL_POSITION_AUX4] = "aux4",
+        [PA_CHANNEL_POSITION_AUX5] = "aux5",
+        [PA_CHANNEL_POSITION_AUX6] = "aux6",
+        [PA_CHANNEL_POSITION_AUX7] = "aux7",
+        [PA_CHANNEL_POSITION_AUX8] = "aux8",
+        [PA_CHANNEL_POSITION_AUX9] = "aux9",
+        [PA_CHANNEL_POSITION_AUX10] = "aux10",
+        [PA_CHANNEL_POSITION_AUX11] = "aux11",
+        [PA_CHANNEL_POSITION_AUX12] = "aux12"
+    };
+
+    if (pos < 0 || pos >= PA_CHANNEL_POSITION_MAX)
+        return NULL;
+
+    return table[pos];
+}
+
+int pa_channel_map_equal(const pa_channel_map *a, const pa_channel_map *b) {
+    unsigned c;
+    
+    assert(a);
+    assert(b);
+
+    if (a->channels != b->channels)
+        return 0;
+    
+    for (c = 0; c < a->channels; c++)
+        if (a->map[c] != b->map[c])
+            return 0;
+
+    return 1;
+}
+
+char* pa_channel_map_snprint(char *s, size_t l, const pa_channel_map *map) {
+    unsigned channel;
+    int first = 1;
+    char *e;
+    
+    assert(s);
+    assert(l > 0);
+    assert(map);
+
+    *(e = s) = 0;
+
+    for (channel = 0; channel < map->channels && l > 1; channel++) {
+        l -= snprintf(e, l, "%s%u:%s",
+                      first ? "" : " ",
+                      channel,
+                      pa_channel_position_to_string(map->map[channel]));
+
+        e = strchr(e, 0);
+        first = 0;
+    }
+
+    return s;
+}
+
+int pa_channel_map_valid(const pa_channel_map *map) {
+    unsigned c;
+    
+    assert(map);
+
+    if (map->channels <= 0 || map->channels > PA_CHANNELS_MAX)
+        return 0;
+
+    for (c = 0; c < map->channels; c++)
+        if (map->map[c] < 0 ||map->map[c] >= PA_CHANNEL_POSITION_MAX)
+            return 0;
+
+    return 1;
+}