1 | /* -*- mode: C; tab-width:8; c-basic-offset:8 -*- |
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2 | * vi:set ts=8: |
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3 | * |
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4 | * al_error.c |
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5 | * |
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6 | * openal error reporting. |
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7 | * |
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8 | */ |
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9 | |
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10 | #include "al_siteconfig.h" |
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11 | |
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12 | #include <AL/al.h> |
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13 | #include <signal.h> |
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14 | #include <stdio.h> |
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15 | |
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16 | #include "al_debug.h" |
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17 | #include "al_types.h" |
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18 | #include "al_error.h" |
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19 | #include "alc/alc_context.h" |
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20 | |
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21 | /* |
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22 | * _alShouldBombOnError_LOKI controls whether or not _alSetError should |
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23 | * abort when setting an error. This allows applications to get immediate |
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24 | * error reporting. |
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25 | */ |
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26 | ALboolean _alShouldBombOnError_LOKI = AL_FALSE; |
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27 | |
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28 | /* |
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29 | * index2ErrorNo( int index ) |
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30 | * |
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31 | * Returns an al error from a simple index. |
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32 | */ |
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33 | static ALenum index2ErrorNo( int index ); |
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34 | |
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35 | /* |
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36 | * ErrorNo2index( ALenum error_number ) |
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37 | * |
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38 | * Returns a simple index from an al error. |
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39 | */ |
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40 | static int ErrorNo2index( ALenum error_number ); |
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41 | |
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42 | /** |
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43 | * Error support. |
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44 | */ |
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45 | |
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46 | /* |
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47 | * alGetError( void ) |
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48 | * |
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49 | * Returns the most recent error generated in the AL state machine. |
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50 | */ |
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51 | ALenum alGetError( void ) { |
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52 | AL_context *cc; |
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53 | int index; |
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54 | |
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55 | _alcDCLockContext(); |
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56 | |
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57 | cc = _alcDCGetContext(); |
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58 | |
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59 | if(cc == NULL) |
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60 | { |
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61 | _alcDCUnlockContext(); |
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62 | return 0; |
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63 | } |
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64 | |
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65 | index = index2ErrorNo(cc->alErrorIndex); |
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66 | |
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67 | /* |
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68 | * In deference to the new spec, GetError clears the error |
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69 | * after reading it. |
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70 | */ |
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71 | cc->alErrorIndex = 0; |
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72 | |
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73 | _alcDCUnlockContext(); |
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74 | |
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75 | return index; |
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76 | } |
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77 | |
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78 | /* |
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79 | * ErrorNo2index( ALenum error_number ) |
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80 | * |
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81 | * Returns a simple index from an al error. |
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82 | */ |
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83 | static int ErrorNo2index( ALenum error_number ) { |
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84 | switch( error_number ) { |
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85 | case AL_NO_ERROR: |
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86 | return 0; |
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87 | case AL_INVALID_NAME: |
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88 | return 1; |
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89 | case AL_INVALID_ENUM: |
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90 | return 2; |
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91 | case AL_INVALID_VALUE: |
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92 | return 3; |
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93 | case AL_INVALID_OPERATION: |
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94 | return 4; |
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95 | case AL_OUT_OF_MEMORY: |
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96 | return 5; |
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97 | default: |
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98 | _alDebug( ALD_ERROR, __FILE__, __LINE__, |
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99 | "Unknown error condition: 0x%x", error_number ); |
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100 | return -1; |
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101 | } |
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102 | } |
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103 | |
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104 | /* |
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105 | * index2ErrorNo( int index ) |
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106 | * |
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107 | * Returns an al error from a simple index. |
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108 | */ |
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109 | static ALenum index2ErrorNo( int index ) { |
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110 | switch( index ) { |
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111 | case 0: |
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112 | return AL_NO_ERROR; |
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113 | case 1: |
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114 | return AL_INVALID_NAME; |
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115 | case 2: |
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116 | return AL_INVALID_ENUM; |
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117 | case 3: |
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118 | return AL_INVALID_VALUE; |
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119 | case 4: |
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120 | return AL_INVALID_OPERATION; |
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121 | case 5: |
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122 | return AL_OUT_OF_MEMORY; |
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123 | default: |
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124 | _alDebug( ALD_ERROR, __FILE__, __LINE__, |
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125 | "Unknown index : %d", index ); |
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126 | return -1; |
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127 | } |
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128 | } |
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129 | |
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130 | /* |
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131 | * _alSetError( ALuint cid, ALenum param ) |
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132 | * |
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133 | * Sets the error for the context with name cid to param. |
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134 | * |
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135 | * assumes locked context |
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136 | */ |
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137 | void _alSetError( ALuint cid, ALenum param ) { |
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138 | AL_context *cc; |
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139 | |
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140 | cc = _alcGetContext( cid ); |
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141 | if(cc == NULL) { |
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142 | /* No default context, no error set. */ |
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143 | return; |
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144 | } |
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145 | |
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146 | if( cc->alErrorIndex == 0 ) { |
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147 | /* |
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148 | * Only set error if no previous error has been recorded. |
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149 | */ |
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150 | |
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151 | cc->alErrorIndex = ErrorNo2index(param); |
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152 | } |
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153 | |
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154 | if(_alShouldBombOnError_LOKI == AL_TRUE) { |
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155 | raise(SIGABRT); |
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156 | } |
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157 | |
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158 | return; |
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159 | } |
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