1 | //mixer.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008, 2009 |
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5 | * |
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6 | * This file is part of roard a part of RoarAudio, |
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7 | * a cross-platform sound system for both, home and professional use. |
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8 | * See README for details. |
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9 | * |
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10 | * This file is free software; you can redistribute it and/or modify |
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11 | * it under the terms of the GNU General Public License version 3 |
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12 | * as published by the Free Software Foundation. |
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13 | * |
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14 | * RoarAudio is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this software; see the file COPYING. If not, write to |
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21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | * |
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23 | */ |
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24 | |
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25 | #include "roard.h" |
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26 | |
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27 | int need_vol_change (int channels, struct roar_mixer_settings * set) { |
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28 | int i; |
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29 | |
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30 | if ( set == NULL || channels < 1 || channels > ROAR_MAX_CHANNELS ) |
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31 | return -1; |
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32 | |
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33 | if ( set->rpg_mul != set->rpg_div ) |
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34 | return 1; |
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35 | |
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36 | for (i = 0; i < channels; i++) |
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37 | if ( set->mixer[i] != set->scale ) |
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38 | return 1; |
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39 | |
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40 | return 0; |
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41 | } |
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42 | |
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43 | #define _err() streams_delete(stream); return -1 |
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44 | int add_mixer (int subsys, char * name, struct roar_stream_server ** ss_ptr) { |
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45 | struct roar_stream_server * ss; |
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46 | int stream; |
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47 | |
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48 | if ( (stream = streams_new()) == -1 ) |
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49 | return -1; |
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50 | |
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51 | if ( streams_get(stream, &ss) == -1 ) { |
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52 | _err(); |
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53 | } |
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54 | |
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55 | if ( streams_set_name(stream, name) == -1 ) { |
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56 | _err(); |
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57 | } |
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58 | |
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59 | if ( client_stream_add(g_self_client, stream) == -1 ) { |
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60 | _err(); |
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61 | } |
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62 | |
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63 | if ( streams_set_dir(stream, ROAR_DIR_MIXING, 1) == -1 ) { |
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64 | _err(); |
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65 | } |
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66 | |
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67 | if ( streams_set_flag(stream, ROAR_FLAG_PRIMARY) == -1 ) { |
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68 | _err(); |
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69 | } |
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70 | |
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71 | switch (subsys) { |
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72 | case ROAR_SUBSYS_WAVEFORM: |
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73 | break; |
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74 | } |
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75 | |
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76 | if ( ss_ptr != NULL ) |
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77 | *ss_ptr = ss; |
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78 | |
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79 | return stream; |
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80 | } |
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81 | |
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82 | //ll |
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