1 | //rolestack.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010-2011 |
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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, 51 Franklin Street, Fifth Floor, |
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22 | * Boston, MA 02110-1301, USA. |
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23 | * |
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24 | */ |
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25 | |
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26 | #include "roard.h" |
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27 | |
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28 | #define STACKSIZE 16 |
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29 | |
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30 | static struct rolestack g_rolestack[STACKSIZE]; |
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31 | |
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32 | void rolestack_init(void) { |
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33 | int i; |
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34 | |
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35 | for (i = 0; i < STACKSIZE; i++) { |
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36 | g_rolestack[i].index = i; |
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37 | g_rolestack[i].role = ROAR_ROLE_UNKNOWN; |
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38 | g_rolestack[i].action = RS_MIX; |
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39 | } |
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40 | |
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41 | g_rolestack[0].role = ROAR_ROLE_NONE; |
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42 | } |
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43 | |
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44 | void print_rolestack(void) { |
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45 | int i; |
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46 | |
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47 | printf("Index Role Action\n"); |
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48 | printf("-----------------------------\n"); |
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49 | for (i = 0; i < STACKSIZE && g_rolestack[i].role != ROAR_ROLE_UNKNOWN; i++) { |
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50 | printf("%-5i %-16s %s\n", g_rolestack[i].index, |
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51 | roar_role2str(g_rolestack[i].role), rolestack_action2str(g_rolestack[i].action)); |
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52 | } |
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53 | } |
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54 | |
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55 | const struct rolestack * rolestack_get_role(int role) { |
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56 | int i; |
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57 | |
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58 | ROAR_DBG("rolestack_get_role(role=%i) = ?", role); |
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59 | |
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60 | if ( role == -1 ) |
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61 | return &(g_rolestack[0]); |
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62 | |
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63 | for (i = STACKSIZE - 1; i >= 0; i--) |
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64 | if ( g_rolestack[i].role == role ) |
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65 | return &(g_rolestack[i]); |
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66 | |
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67 | return &(g_rolestack[0]); |
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68 | } |
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69 | |
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70 | int rolestack_push(const struct rolestack * role) { |
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71 | int i; |
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72 | |
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73 | for (i = 0; i < STACKSIZE; i++) { |
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74 | if ( g_rolestack[i].role == ROAR_ROLE_UNKNOWN ) { |
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75 | memcpy(&(g_rolestack[i]), role, sizeof(g_rolestack[i])); |
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76 | g_rolestack[i].index = i; |
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77 | return 0; |
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78 | } |
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79 | } |
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80 | |
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81 | roar_err_set(ROAR_ERROR_NOMEM); |
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82 | return -1; |
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83 | } |
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84 | |
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85 | enum rs_action rolestack_str2action(const char * str) { |
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86 | if ( str == NULL ) { |
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87 | roar_err_set(ROAR_ERROR_FAULT); |
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88 | return -1; |
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89 | } |
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90 | |
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91 | if (!strcasecmp(str, "mix")) { |
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92 | return RS_MIX; |
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93 | } else if (!strcasecmp(str, "kick")) { |
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94 | return RS_KICK; |
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95 | } else if (!strcasecmp(str, "mute")) { |
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96 | return RS_MUTE; |
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97 | } else if (!strcasecmp(str, "pause")) { |
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98 | return RS_PAUSE; |
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99 | } |
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100 | |
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101 | return RS_ERROR; |
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102 | } |
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103 | |
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104 | const char * rolestack_action2str(enum rs_action action) { |
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105 | switch (action) { |
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106 | case RS_ERROR: return "(error)"; break; |
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107 | case RS_MIX: return "mix"; break; |
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108 | case RS_MUTE: return "mute"; break; |
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109 | case RS_PAUSE: return "pause"; break; |
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110 | case RS_KICK: return "kick"; break; |
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111 | } |
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112 | |
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113 | return "(unknown)"; |
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114 | } |
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115 | |
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116 | const struct rolestack * rolestack_parse(const char * str) { |
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117 | static struct rolestack ret; |
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118 | char * role, * action; |
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119 | |
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120 | if ( str == NULL ) { |
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121 | roar_err_set(ROAR_ERROR_FAULT); |
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122 | return NULL; |
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123 | } |
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124 | |
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125 | role = roar_mm_strdup(str); |
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126 | if ( role == NULL ) |
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127 | return NULL; |
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128 | |
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129 | if ( (action = strstr(role, ":")) == NULL ) { |
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130 | roar_mm_free(role); |
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131 | roar_err_set(ROAR_ERROR_BADMSG); |
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132 | return NULL; |
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133 | } |
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134 | |
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135 | *action = 0; |
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136 | action++; |
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137 | |
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138 | ret.index = -1; |
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139 | ret.role = roar_str2role(role); |
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140 | ret.action = rolestack_str2action(action); |
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141 | |
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142 | roar_mm_free(role); |
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143 | |
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144 | if ( ret.role == -1 || ret.action == RS_ERROR ) { |
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145 | roar_err_set(ROAR_ERROR_BADMSG); |
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146 | return NULL; |
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147 | } |
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148 | |
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149 | return &ret; |
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150 | } |
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151 | |
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152 | //ll |
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