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_source.c |
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5 | * |
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6 | * Contains the implementation for source related functions like |
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7 | * GenSource, DeleteSource, SourcePlay, etc, as well as internal |
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8 | * use functions intended to manage the source structure. |
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9 | * |
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10 | */ |
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11 | #include "al_siteconfig.h" |
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12 | |
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13 | #include <AL/al.h> |
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14 | #include <AL/alc.h> |
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15 | #include <AL/alext.h> |
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16 | #include <math.h> |
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17 | #include <limits.h> |
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18 | #include <stdio.h> |
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19 | #include <stdlib.h> |
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20 | #include <string.h> |
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21 | #include <float.h> |
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22 | |
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23 | #include "al_buffer.h" |
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24 | #include "al_config.h" |
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25 | #include "al_debug.h" |
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26 | #include "al_error.h" |
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27 | #include "al_main.h" |
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28 | #include "al_mixer.h" |
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29 | #include "al_spool.h" |
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30 | #include "al_source.h" |
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31 | #include "al_queue.h" |
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32 | #include "al_types.h" |
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33 | #include "al_vector.h" |
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34 | #include "alc/alc_context.h" |
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35 | #include "alc/alc_speaker.h" |
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36 | #include "al_ext.h" |
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37 | |
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38 | /* |
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39 | * _alInitSource( ALuint sid ) |
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40 | * |
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41 | * Initialize an already allocated source. |
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42 | */ |
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43 | static void _alInitSource( ALuint sid ); |
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44 | |
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45 | /* |
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46 | * _alSource2D( AL_source *src ) |
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47 | * |
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48 | * Turns off 3D attributes of a source |
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49 | */ |
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50 | static void _alSource2D( AL_source *src ); |
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51 | |
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52 | /* |
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53 | * Monoify functions copy an interleaved array of PCM data, usually in LRLR |
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54 | * format into seperate dst buffers. |
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55 | */ |
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56 | static void _alMonoifyOffset1to2(ALshort **dstref, ALuint offset, ALvoid *src, ALuint ssize); |
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57 | static void _alMonoifyOffset2to2(ALshort **dstref, ALuint offset, ALvoid *src, ALuint ssize); |
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58 | static void _alMonoifyOffset1to4(ALshort **dstref, ALuint offset, ALvoid *src, ALuint ssize); |
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59 | static void _alMonoifyOffset2to4(ALshort **dstref, ALuint offset, ALvoid *src, ALuint ssize); |
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60 | static void _alMonoifyOffset4to4(ALshort **dstref, ALuint offset, ALvoid *src, ALuint ssize); |
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61 | |
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62 | /* |
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63 | * Channelify functions copy the PCM data from srcs[0..nc-1] into an |
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64 | * interleaved destination. nc ( number of channels) is specified in the |
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65 | * function name, ie _alChannelify2 specifies that srcs[0] and srcs[1] contain |
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66 | * left and right channel data, respectively. |
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67 | */ |
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68 | static void _alChannelify2Offset(ALshort *dst, ALuint offset, ALshort **srcs, ALuint size); |
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69 | static void _alChannelify4Offset(ALshort *dst, ALuint offset, ALshort **srcs, ALuint size); |
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70 | |
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71 | /* static data */ |
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72 | static ALshort *stereoptr = NULL; /* |
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73 | * scratch space for splitting multichannels |
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74 | * sources. |
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75 | */ |
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76 | |
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77 | /* |
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78 | * special split source to handle callbacks |
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79 | */ |
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80 | static void _alSplitSourceCallback(ALuint cid, |
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81 | ALuint sourceid, |
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82 | ALint nc, ALuint len, |
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83 | AL_buffer *samp, |
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84 | ALshort **buffers); |
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85 | /* |
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86 | * special split source to handle looping end case (wrap-around). |
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87 | */ |
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88 | static void _alSplitSourceLooping(ALuint cid, |
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89 | ALuint sourceid, |
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90 | ALint nc, ALuint len, |
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91 | AL_buffer *samp, |
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92 | ALshort **buffers); |
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93 | |
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94 | /* |
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95 | * special split source to handle buffer queue transitions |
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96 | * (wrap-around). |
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97 | */ |
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98 | static void _alSplitSourceQueue(ALuint cid, |
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99 | ALuint sourceid, |
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100 | ALint nc, ALuint len, |
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101 | AL_buffer *samp, |
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102 | ALshort **buffers); |
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103 | |
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104 | /* |
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105 | * get a channel pointer into the buffer's data, scaled by the source's |
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106 | * position into the PCM data. |
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107 | */ |
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108 | void *_alSourceGetBufptr(AL_source *src, AL_buffer *buf, ALuint ind); |
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109 | |
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110 | /* |
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111 | * alIsSource( ALuint sid ) |
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112 | * |
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113 | * Returns AL_TRUE if sid is a currently valid source id, |
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114 | * AL_FALSE otherwise. |
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115 | */ |
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116 | ALboolean alIsSource( ALuint sid ) |
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117 | { |
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118 | ALboolean retval = AL_FALSE; |
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119 | |
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120 | _alDCLockSource( sid ); |
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121 | |
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122 | retval = _alIsSource( sid ); |
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123 | |
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124 | _alDCUnlockSource( sid ); |
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125 | |
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126 | return retval; |
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127 | } |
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128 | |
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129 | /* |
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130 | * _alIsSource( ALuint sid ) |
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131 | * |
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132 | * Returns AL_TRUE if sid is a currently valid source id, |
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133 | * AL_FALSE otherwise. |
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134 | * |
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135 | * Assumes locked source |
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136 | */ |
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137 | ALboolean _alIsSource( ALuint sid ) |
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138 | { |
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139 | AL_source *src; |
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140 | ALboolean retval = AL_TRUE; |
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141 | |
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142 | src = _alDCGetSource( sid ); |
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143 | if(src == NULL) { |
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144 | retval = AL_FALSE; |
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145 | } |
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146 | |
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147 | return retval; |
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148 | } |
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149 | |
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150 | /* |
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151 | * alGenSources( ALsizei n, ALuint *buffer ) |
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152 | * |
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153 | * Generate n sources, with sids in buffer[0..(n-1)]. Only |
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154 | * full allocation is performed, with error being set otherwise. |
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155 | * |
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156 | * If n is 0, this is a legal nop. If n < 0, INVALID_VALUE is |
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157 | * set and this is a nop. |
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158 | */ |
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159 | void alGenSources( ALsizei n, ALuint *buffer ) { |
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160 | AL_context *cc; |
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161 | ALint sindex; |
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162 | ALuint *temp; |
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163 | int i; |
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164 | |
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165 | if( n == 0 ) { |
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166 | /* with n == 0, we NOP */ |
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167 | return; |
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168 | } |
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169 | |
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170 | _alcDCLockContext(); |
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171 | cc = _alcDCGetContext(); |
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172 | if(cc == NULL) |
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173 | { |
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174 | /* |
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175 | * alGenSources called without current context. Is there even |
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176 | * an error for this? |
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177 | * |
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178 | * JIV FIXME: set some sort of error? Where? |
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179 | */ |
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180 | |
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181 | return; |
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182 | } |
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183 | |
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184 | if( n < 0 ) { |
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185 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
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186 | "alGenSources: illegal n value %d\n", n ); |
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187 | |
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188 | _alDCSetError( AL_INVALID_VALUE ); |
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189 | _alcDCUnlockContext(); |
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190 | |
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191 | return; |
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192 | } |
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193 | |
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194 | temp = malloc( n * sizeof *temp ); |
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195 | if(temp == NULL) { |
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196 | /* |
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197 | * Could not reserve memory for temporary |
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198 | * ALuint *buffer. |
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199 | */ |
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200 | _alDCSetError( AL_OUT_OF_MEMORY ); |
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201 | _alcDCUnlockContext(); |
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202 | |
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203 | return; |
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204 | } |
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205 | |
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206 | for(i = 0; i < n; i++) { |
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207 | sindex = spool_alloc( &cc->source_pool ); |
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208 | if( sindex == -1 ) { |
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209 | /* We ran into a problem somewhere in |
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210 | * allocing a set of source ids. Run |
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211 | * through the ones we did alloc, |
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212 | * realloc them, set error and return. |
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213 | * |
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214 | * FIXME: Should unlock, or have a non-locking |
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215 | * version of alDelSources called inside |
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216 | * the current lock? |
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217 | */ |
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218 | _alcDCUnlockContext(); |
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219 | |
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220 | if(i > 0) { |
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221 | /* |
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222 | * We delete i sources, and not i + 1, because |
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223 | * the last alloc did not happen. And only |
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224 | * if i > 0. |
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225 | */ |
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226 | alDeleteSources( i, temp ); |
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227 | } |
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228 | |
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229 | free( temp ); |
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230 | |
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231 | _alDCSetError( AL_OUT_OF_MEMORY ); |
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232 | |
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233 | return; |
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234 | } |
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235 | |
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236 | temp[i] = sindex; |
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237 | _alInitSource( temp[i] ); |
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238 | } |
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239 | |
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240 | _alcDCUnlockContext(); |
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241 | |
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242 | /* |
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243 | * temp[0...n-1] now contains the generated buffers. Copy them |
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244 | * to the user data. |
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245 | */ |
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246 | memcpy( buffer, temp, n * sizeof *buffer ); |
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247 | |
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248 | free( temp ); |
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249 | |
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250 | return; |
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251 | } |
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252 | |
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253 | /* |
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254 | * _alSource2D( AL_source *src ) |
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255 | * |
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256 | * Turns off 3D attributes of a source |
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257 | * |
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258 | * Assumes locked source |
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259 | */ |
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260 | void _alSource2D( AL_source *src ) { |
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261 | _alDebug(ALD_MAXIMUS, __FILE__, __LINE__, |
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262 | "_alSource2D: source turned 2D"); |
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263 | |
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264 | src->position.isset = AL_FALSE; |
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265 | _alSourceGetParamDefault( AL_POSITION, src->position.data ); |
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266 | |
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267 | src->direction.isset = AL_FALSE; |
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268 | _alSourceGetParamDefault( AL_DIRECTION, src->direction.data ); |
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269 | |
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270 | src->cone_inner_angle.isset = AL_FALSE; |
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271 | _alSourceGetParamDefault( AL_CONE_INNER_ANGLE, &src->cone_inner_angle.data ); |
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272 | |
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273 | src->cone_outer_angle.isset = AL_FALSE; |
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274 | _alSourceGetParamDefault( AL_CONE_OUTER_ANGLE, &src->cone_outer_angle.data ); |
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275 | |
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276 | src->cone_outer_gain.isset = AL_FALSE; |
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277 | } |
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278 | |
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279 | /* |
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280 | * alSourcei( ALuint sid, ALenum param, ALint i1 ) |
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281 | * |
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282 | * Sets an attribute for a source. |
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283 | * |
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284 | * If sid does not name a valid source, AL_INVALID_NAME. |
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285 | * If param does not specify a source attribute, AL_INVALID_ENUM. |
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286 | * If i1 is out of range for the attribute, AL_INVALID_VALUE. |
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287 | * |
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288 | * If param is AL_BUFFER, and the source in question is not in the state |
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289 | * AL_INITIAL or AL_STOPPED, AL_INVALID_OPERATION. |
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290 | * |
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291 | */ |
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292 | void alSourcei( ALuint sid, ALenum param, ALint i1 ) |
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293 | { |
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294 | AL_source *src; |
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295 | ALboolean inrange = AL_TRUE; |
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296 | ALfloat temp; |
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297 | |
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298 | /* |
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299 | * If param refers to a integer attribute, accept it. |
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300 | * If it refers to a float attribute, delegate it to alSourcefv. If |
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301 | * it is an invalid attribute, set INVALID_ENUM and bail out. |
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302 | * |
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303 | * Float vectors are obviously not possible, so we set |
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304 | * INVALID_OPERATION. This is probably a spec violation. |
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305 | */ |
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306 | switch( param ) { |
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307 | case AL_BUFFER: |
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308 | case AL_LOOPING: |
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309 | case AL_SOURCE_RELATIVE: |
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310 | /* |
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311 | * We handle these natively. |
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312 | */ |
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313 | break; |
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314 | case AL_PITCH: |
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315 | case AL_MIN_GAIN: |
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316 | case AL_MAX_GAIN: |
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317 | case AL_CONE_INNER_ANGLE: |
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318 | case AL_CONE_OUTER_ANGLE: |
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319 | case AL_CONE_OUTER_GAIN: |
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320 | case AL_GAIN: |
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321 | case AL_GAIN_LINEAR_LOKI: |
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322 | case AL_REFERENCE_DISTANCE: |
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323 | case AL_ROLLOFF_FACTOR: |
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324 | case AL_MAX_DISTANCE: |
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325 | temp = i1; |
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326 | |
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327 | alSourcef( sid, param, temp ); |
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328 | |
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329 | return; |
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330 | break; |
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331 | case AL_POSITION: |
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332 | case AL_VELOCITY: |
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333 | case AL_DIRECTION: |
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334 | default: |
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335 | _alcDCLockContext(); |
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336 | _alDCSetError( AL_INVALID_ENUM ); |
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337 | _alcDCUnlockContext(); |
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338 | |
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339 | return; |
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340 | break; |
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341 | } |
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342 | |
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343 | SOURCELOCK(); |
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344 | |
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345 | src = _alDCGetSource( sid ); |
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346 | if(src == NULL) { |
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347 | /* |
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348 | * sid is invalid. |
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349 | */ |
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350 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
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351 | "alSourcei: source id %d is not valid", sid); |
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352 | |
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353 | _alDCSetError( AL_INVALID_NAME ); |
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354 | |
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355 | SOURCEUNLOCK(); |
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356 | return; |
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357 | } |
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358 | |
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359 | /* |
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360 | * all calls to alSourcei specify ALboolean parameters, |
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361 | * which means that i1 is either AL_TRUE, AL_FALSE, or |
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362 | * not valid. So check for validity of i1 first, and |
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363 | * set error if that's the case. |
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364 | */ |
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365 | switch( param ) { |
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366 | case AL_LOOPING: |
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367 | case AL_SOURCE_RELATIVE: |
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368 | inrange = _alCheckRangeb( i1 ); |
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369 | break; |
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370 | case AL_BUFFER: |
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371 | inrange = alIsBuffer( i1 ); |
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372 | |
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373 | if( i1 == 0 ) { |
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374 | /* |
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375 | * bid of 0 has a special meaning: unset the |
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376 | * parameter. So it's in range. |
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377 | */ |
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378 | inrange = AL_TRUE; |
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379 | } |
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380 | break; |
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381 | default: |
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382 | /* invalid param, error below. */ |
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383 | break; |
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384 | } |
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385 | |
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386 | if( inrange == AL_FALSE ) { |
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387 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
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388 | "alSourcei(%d, 0x%x, ...) called with invalid value %d", |
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389 | sid, param, i1); |
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390 | |
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391 | _alDCSetError( AL_INVALID_VALUE ); |
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392 | |
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393 | SOURCEUNLOCK(); |
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394 | return; |
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395 | } |
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396 | |
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397 | switch(param) |
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398 | { |
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399 | case AL_BUFFER: |
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400 | switch( src->state ) |
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401 | { |
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402 | case AL_PLAYING: |
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403 | case AL_PAUSED: |
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404 | /* |
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405 | * Invalid state to set buffer in. |
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406 | */ |
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407 | _alDebug( ALD_SOURCE, |
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408 | __FILE__, __LINE__, |
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409 | "alSourcei(%d): source is playing, AL_BUFFER invalid", |
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410 | sid ); |
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411 | _alDCSetError( AL_INVALID_OPERATION ); |
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412 | break; |
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413 | default: |
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414 | _alSourceQueueHead( src, i1 ); |
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415 | break; |
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416 | } |
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417 | |
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418 | break; |
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419 | case AL_LOOPING: |
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420 | src->looping.isset = AL_TRUE; |
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421 | src->looping.data = i1; |
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422 | break; |
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423 | case AL_SOURCE_RELATIVE: |
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424 | src->relative.isset = AL_TRUE; |
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425 | src->relative.data = i1; |
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426 | /* If this is a relative source with zero position, |
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427 | perform the 2D sound hack... |
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428 | (Tribes 2 reuses 3D sources as 2D sources) |
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429 | */ |
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430 | if ( i1 && src->position.isset && |
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431 | ! src->position.data[0] && |
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432 | ! src->position.data[1] && |
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433 | ! src->position.data[2] ) { |
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434 | _alSource2D(src); |
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435 | } |
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436 | break; |
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437 | default: |
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438 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
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439 | "alSourcei: invalid or stubbed source param 0x%x", |
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440 | param ); |
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441 | |
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442 | _alDCSetError( AL_INVALID_ENUM ); |
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443 | break; |
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444 | } |
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445 | |
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446 | SOURCEUNLOCK(); |
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447 | |
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448 | return; |
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449 | } |
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450 | |
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451 | /* |
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452 | * alSourcef( ALuint sid, ALenum param, ALfloat f1 ) |
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453 | * |
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454 | * Sets an attribute for a source. |
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455 | * |
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456 | * If sid does not name a valid source, AL_INVALID_NAME. |
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457 | * If param does not specify a source attribute, AL_INVALID_ENUM. |
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458 | * If f1 is out of range for the attribute, AL_INVALID_VALUE. |
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459 | * |
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460 | */ |
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461 | void alSourcef( ALuint sid, ALenum param, ALfloat f1 ) { |
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462 | /* |
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463 | * If param refers to a integer attribute, delegate it to alSourcei. |
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464 | * If it refers to a float attribute, delegate it to alSourcefv. If |
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465 | * it is an invalid attribute, set INVALID_ENUM and bail out. |
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466 | * |
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467 | * Float vectors are obviously not possible, so we set |
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468 | * INVALID_OPERATION. This is probably a spec violation. |
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469 | */ |
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470 | switch( param ) { |
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471 | case AL_BUFFER: |
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472 | case AL_LOOPING: |
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473 | case AL_SOURCE_RELATIVE: |
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474 | alSourcei( sid, param, (ALint) f1 ); |
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475 | return; |
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476 | case AL_PITCH: |
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477 | case AL_MIN_GAIN: |
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478 | case AL_MAX_GAIN: |
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479 | case AL_CONE_INNER_ANGLE: |
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480 | case AL_CONE_OUTER_ANGLE: |
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481 | case AL_CONE_OUTER_GAIN: |
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482 | case AL_GAIN: |
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483 | case AL_GAIN_LINEAR_LOKI: |
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484 | case AL_REFERENCE_DISTANCE: |
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485 | case AL_ROLLOFF_FACTOR: |
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486 | case AL_MAX_DISTANCE: |
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487 | alSourcefv( sid, param, &f1 ); |
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488 | return; |
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489 | case AL_POSITION: |
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490 | case AL_VELOCITY: |
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491 | case AL_DIRECTION: |
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492 | default: |
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493 | _alcDCLockContext(); |
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494 | _alDCSetError( AL_INVALID_ENUM ); |
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495 | _alcDCUnlockContext(); |
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496 | return; |
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497 | } |
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498 | } |
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499 | |
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500 | /* |
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501 | * alSource3f( ALuint sid, ALenum param, ALfloat f1, ALfloat f2, ALfloat f3 ) |
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502 | * |
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503 | * Sets an 3 float parameter for a source. |
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504 | * |
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505 | * If sid does not name a valid source, AL_INVALID_NAME. |
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506 | * If param does not specify a source attribute, AL_INVALID_ENUM. |
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507 | * If f1, f2, or f3 is out of range for the attribute, AL_INVALID_VALUE. |
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508 | * |
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509 | */ |
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510 | void alSource3f( ALuint sid, ALenum param, |
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511 | ALfloat f1, ALfloat f2, ALfloat f3 ) { |
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512 | ALfloat fv[3]; |
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513 | |
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514 | fv[0] = f1; |
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515 | fv[1] = f2; |
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516 | fv[2] = f3; |
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517 | |
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518 | alSourcefv( sid, param, fv ); |
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519 | |
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520 | return; |
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521 | } |
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522 | |
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523 | /* |
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524 | * alSourcefv( ALuint sid, ALenum param, ALfloat fv ) |
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525 | * |
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526 | * Sets an float vector parameter for a source. |
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527 | * |
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528 | * If sid does not name a valid source, AL_INVALID_NAME. |
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529 | * If param does not specify a source attribute, AL_INVALID_ENUM. |
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530 | * If any member of fv is out of range for the attribute, AL_INVALID_VALUE. |
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531 | * |
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532 | */ |
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533 | void alSourcefv( ALuint sid, ALenum param, const ALfloat *fv1 ) |
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534 | { |
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535 | AL_source *source; |
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536 | ALboolean inrange = AL_TRUE; |
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537 | |
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538 | /* |
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539 | * If param refers to a integer attribute, delegate it to alSourcei. |
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540 | * If it refers to a float attribute, we accept it. |
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541 | */ |
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542 | switch( param ) { |
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543 | case AL_BUFFER: |
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544 | case AL_LOOPING: |
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545 | case AL_SOURCE_RELATIVE: |
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546 | alSourcei( sid, param, (ALint) fv1[0] ); |
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547 | return; |
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548 | case AL_PITCH: |
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549 | case AL_MIN_GAIN: |
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550 | case AL_MAX_GAIN: |
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551 | case AL_CONE_INNER_ANGLE: |
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552 | case AL_CONE_OUTER_ANGLE: |
---|
553 | case AL_CONE_OUTER_GAIN: |
---|
554 | case AL_GAIN: |
---|
555 | case AL_GAIN_LINEAR_LOKI: |
---|
556 | case AL_REFERENCE_DISTANCE: |
---|
557 | case AL_ROLLOFF_FACTOR: |
---|
558 | case AL_MAX_DISTANCE: |
---|
559 | case AL_POSITION: |
---|
560 | case AL_VELOCITY: |
---|
561 | case AL_DIRECTION: |
---|
562 | break; |
---|
563 | default: |
---|
564 | _alcDCLockContext(); |
---|
565 | _alDCSetError( AL_INVALID_ENUM ); |
---|
566 | _alcDCUnlockContext(); |
---|
567 | return; |
---|
568 | } |
---|
569 | |
---|
570 | |
---|
571 | SOURCELOCK(); |
---|
572 | source = _alDCGetSource( sid ); |
---|
573 | |
---|
574 | if( source == NULL ) { |
---|
575 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
576 | "alSourcefv: %d is an invalid source id", sid ); |
---|
577 | |
---|
578 | _alDCSetError( AL_INVALID_NAME ); |
---|
579 | |
---|
580 | SOURCEUNLOCK(); |
---|
581 | |
---|
582 | return; |
---|
583 | } |
---|
584 | |
---|
585 | if( fv1 == NULL ) { |
---|
586 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
587 | "alSourcefv: passed fv is NULL"); |
---|
588 | |
---|
589 | _alDCSetError( AL_INVALID_VALUE ); |
---|
590 | |
---|
591 | SOURCEUNLOCK(); |
---|
592 | |
---|
593 | return; |
---|
594 | } |
---|
595 | |
---|
596 | /* check to see if we are in range, first */ |
---|
597 | switch( param ) { |
---|
598 | case AL_MIN_GAIN: |
---|
599 | case AL_MAX_GAIN: |
---|
600 | case AL_CONE_OUTER_GAIN: |
---|
601 | case AL_GAIN: |
---|
602 | case AL_GAIN_LINEAR_LOKI: |
---|
603 | inrange = _alCheckRangef( fv1[0], 0.0, FLT_MAX ); |
---|
604 | break; |
---|
605 | case AL_CONE_INNER_ANGLE: |
---|
606 | case AL_CONE_OUTER_ANGLE: |
---|
607 | inrange = _alCheckRangef( fv1[0], 0.0, 360.0 ); |
---|
608 | break; |
---|
609 | case AL_PITCH: |
---|
610 | /* FIXME: deviates from spec */ |
---|
611 | inrange = _alCheckRangef( fv1[0], 0.0, 2.0 ); |
---|
612 | break; |
---|
613 | case AL_REFERENCE_DISTANCE: |
---|
614 | case AL_MAX_DISTANCE: |
---|
615 | case AL_ROLLOFF_FACTOR: |
---|
616 | inrange = _alCheckRangef( fv1[0], 0.0, FLT_MAX ); |
---|
617 | break; |
---|
618 | case AL_POSITION: |
---|
619 | case AL_DIRECTION: |
---|
620 | inrange = inrange && ( _alIsFinite( fv1[0] ) == AL_TRUE ); |
---|
621 | inrange = inrange && ( _alIsFinite( fv1[1] ) == AL_TRUE ); |
---|
622 | inrange = inrange && ( _alIsFinite( fv1[2] ) == AL_TRUE ); |
---|
623 | |
---|
624 | assert( inrange ); |
---|
625 | break; |
---|
626 | default: |
---|
627 | /* invalid param. error below */ |
---|
628 | break; |
---|
629 | } |
---|
630 | |
---|
631 | if( inrange == AL_FALSE ) { |
---|
632 | /* |
---|
633 | * We have a range error, exit early. |
---|
634 | */ |
---|
635 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
636 | "alSourcef(%d, 0x%x, ...): %f out of range", |
---|
637 | sid, param, fv1[0] ); |
---|
638 | |
---|
639 | _alDCSetError( AL_INVALID_VALUE ); |
---|
640 | |
---|
641 | SOURCEUNLOCK(); |
---|
642 | |
---|
643 | return; |
---|
644 | } |
---|
645 | |
---|
646 | switch( param ) { |
---|
647 | case AL_POSITION: |
---|
648 | source->position.isset = AL_TRUE; |
---|
649 | memcpy( &source->position.data, fv1, SIZEOFVECTOR ); |
---|
650 | /* If this is a relative source with zero position, |
---|
651 | perform the 2D sound hack... |
---|
652 | (Tribes 2 reuses 3D sources as 2D sources) |
---|
653 | */ |
---|
654 | if ( !fv1[0] && !fv1[1] && !fv1[2] && |
---|
655 | source->relative.isset && |
---|
656 | source->relative.data ) { |
---|
657 | _alSource2D(source); |
---|
658 | } |
---|
659 | break; |
---|
660 | case AL_DIRECTION: |
---|
661 | /* |
---|
662 | * The zero vector will make a directional sound |
---|
663 | * non-directional. |
---|
664 | */ |
---|
665 | if(_alIsZeroVector(fv1) == AL_TRUE) { |
---|
666 | /* clear DIRECTION flag */ |
---|
667 | source->direction.isset = AL_FALSE; |
---|
668 | } else { |
---|
669 | source->direction.isset = AL_TRUE; |
---|
670 | memcpy( &source->direction.data, fv1, SIZEOFVECTOR ); |
---|
671 | } |
---|
672 | break; |
---|
673 | case AL_VELOCITY: |
---|
674 | source->velocity.isset = AL_TRUE; |
---|
675 | memcpy( &source->velocity.data, fv1, SIZEOFVECTOR ); |
---|
676 | |
---|
677 | /* |
---|
678 | * velocity means doppler, which means that we |
---|
679 | * need pitch, which means alf_tpitch takes care of |
---|
680 | * incrementing soundpos. Very kludgey, I'll admit. |
---|
681 | * |
---|
682 | */ |
---|
683 | source->flags |= ALS_NEEDPITCH; |
---|
684 | break; |
---|
685 | case AL_MIN_GAIN: |
---|
686 | source->min_gain.isset = AL_TRUE; |
---|
687 | source->min_gain.data = fv1[0]; |
---|
688 | break; |
---|
689 | case AL_MAX_GAIN: |
---|
690 | source->max_gain.isset = AL_TRUE; |
---|
691 | source->max_gain.data = fv1[0]; |
---|
692 | break; |
---|
693 | case AL_CONE_INNER_ANGLE: |
---|
694 | source->cone_inner_angle.isset = AL_TRUE; |
---|
695 | source->cone_inner_angle.data = fv1[0]; |
---|
696 | break; |
---|
697 | case AL_CONE_OUTER_ANGLE: |
---|
698 | source->cone_outer_angle.isset = AL_TRUE; |
---|
699 | source->cone_outer_angle.data = fv1[0]; |
---|
700 | break; |
---|
701 | case AL_CONE_OUTER_GAIN: |
---|
702 | source->cone_outer_gain.isset = AL_TRUE; |
---|
703 | source->cone_outer_gain.data = fv1[0]; |
---|
704 | break; |
---|
705 | case AL_PITCH: |
---|
706 | /* only set pitch if it differs from 1.0 */ |
---|
707 | if(fv1[0] == 1.0) { |
---|
708 | source->pitch.isset = AL_FALSE; |
---|
709 | source->pitch.data = 1.0; |
---|
710 | |
---|
711 | /* |
---|
712 | * If velocity is set, then doppler may |
---|
713 | * change the pitch. |
---|
714 | */ |
---|
715 | if (!source->velocity.isset) { |
---|
716 | source->flags &= ~ALS_NEEDPITCH; |
---|
717 | } |
---|
718 | } else { |
---|
719 | source->pitch.isset = AL_TRUE; |
---|
720 | source->pitch.data = fv1[0]; |
---|
721 | |
---|
722 | /* tpitch messes with soundpos */ |
---|
723 | source->flags |= ALS_NEEDPITCH; |
---|
724 | } |
---|
725 | break; |
---|
726 | case AL_GAIN: |
---|
727 | case AL_GAIN_LINEAR_LOKI: |
---|
728 | source->gain.isset = AL_TRUE; |
---|
729 | source->gain.data = fv1[0]; |
---|
730 | break; |
---|
731 | case AL_REFERENCE_DISTANCE: |
---|
732 | source->reference_distance.isset = AL_TRUE; |
---|
733 | source->reference_distance.data = fv1[0]; |
---|
734 | break; |
---|
735 | case AL_MAX_DISTANCE: |
---|
736 | source->max_distance.isset = AL_TRUE; |
---|
737 | source->max_distance.data = fv1[0]; |
---|
738 | break; |
---|
739 | case AL_ROLLOFF_FACTOR: |
---|
740 | source->rolloff_factor.isset = AL_TRUE; |
---|
741 | source->rolloff_factor.data = fv1[0]; |
---|
742 | break; |
---|
743 | default: |
---|
744 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
745 | "alSourcefv(%d): param 0x%x not valid", sid, param ); |
---|
746 | |
---|
747 | _alDCSetError( AL_INVALID_ENUM ); |
---|
748 | break; |
---|
749 | } |
---|
750 | |
---|
751 | SOURCEUNLOCK(); |
---|
752 | |
---|
753 | return; |
---|
754 | } |
---|
755 | |
---|
756 | /* |
---|
757 | * alGetSourcei( ALuint sid, ALenum pname, ALint *retref ) |
---|
758 | * |
---|
759 | * Retrieve the value of a source (scalar) attribute |
---|
760 | * |
---|
761 | * If sid does not name a valid source, AL_INVALID_NAME. |
---|
762 | * If param does not specify a source attribute, AL_INVALID_ENUM. |
---|
763 | * |
---|
764 | */ |
---|
765 | void alGetSourcei( ALuint sid, ALenum param, ALint *retref ) |
---|
766 | { |
---|
767 | ALint safety_first[6]; |
---|
768 | |
---|
769 | alGetSourceiv( sid, param, safety_first ); |
---|
770 | |
---|
771 | *retref = safety_first[0]; |
---|
772 | |
---|
773 | return; |
---|
774 | } |
---|
775 | |
---|
776 | /* |
---|
777 | * alGetSourceiv( ALuint sid, ALenum pname, ALint *retref ) |
---|
778 | * |
---|
779 | * Retrieve the value of a source attribute. |
---|
780 | * |
---|
781 | * If sid does not name a valid source, AL_INVALID_NAME. |
---|
782 | * If param does not specify a source attribute, AL_INVALID_ENUM. |
---|
783 | * |
---|
784 | */ |
---|
785 | void alGetSourceiv( ALuint sid, ALenum param, ALint *retref ) |
---|
786 | { |
---|
787 | AL_source *src; |
---|
788 | ALint *temp; |
---|
789 | |
---|
790 | /* |
---|
791 | * Check for invalid type request: eg AL_GAIN. We need |
---|
792 | * to convert these. |
---|
793 | */ |
---|
794 | switch( param ) { |
---|
795 | case AL_GAIN: |
---|
796 | case AL_GAIN_LINEAR_LOKI: |
---|
797 | case AL_CONE_INNER_ANGLE: |
---|
798 | case AL_CONE_OUTER_ANGLE: |
---|
799 | case AL_CONE_OUTER_GAIN: |
---|
800 | case AL_PITCH: |
---|
801 | case AL_REFERENCE_DISTANCE: |
---|
802 | case AL_ROLLOFF_FACTOR: |
---|
803 | case AL_MAX_DISTANCE: |
---|
804 | /* float conversion */ |
---|
805 | do { |
---|
806 | ALfloat ftemp = 0.0f; |
---|
807 | |
---|
808 | alGetSourcefv( sid, param, &ftemp ); |
---|
809 | |
---|
810 | /* how do we know if we've failed? */ |
---|
811 | *retref = ftemp; |
---|
812 | |
---|
813 | return; |
---|
814 | } while(0); |
---|
815 | break; |
---|
816 | case AL_VELOCITY: |
---|
817 | case AL_POSITION: |
---|
818 | case AL_DIRECTION: |
---|
819 | /* float conversion */ |
---|
820 | do { |
---|
821 | ALfloat ftemp[3]; |
---|
822 | |
---|
823 | alGetSourcefv( sid, param, ftemp ); |
---|
824 | |
---|
825 | /* how do we know if we've failed? */ |
---|
826 | retref[0] = ftemp[0]; |
---|
827 | retref[1] = ftemp[1]; |
---|
828 | retref[2] = ftemp[2]; |
---|
829 | |
---|
830 | return; |
---|
831 | } while(0); |
---|
832 | break; |
---|
833 | default: |
---|
834 | /* |
---|
835 | * either integer, boolean, or invalid |
---|
836 | * param. |
---|
837 | */ |
---|
838 | break; |
---|
839 | } |
---|
840 | |
---|
841 | SOURCELOCK(); |
---|
842 | src = _alDCGetSource( sid ); |
---|
843 | |
---|
844 | if( src == NULL ) { |
---|
845 | /* |
---|
846 | * Invalid source id |
---|
847 | */ |
---|
848 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
849 | "alGetSourcei: invalid source id %d", |
---|
850 | sid); |
---|
851 | |
---|
852 | _alDCSetError( AL_INVALID_NAME ); |
---|
853 | |
---|
854 | SOURCEUNLOCK(); |
---|
855 | return; |
---|
856 | } |
---|
857 | |
---|
858 | if(retref == NULL) { |
---|
859 | /* silently ignore */ |
---|
860 | |
---|
861 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
862 | "alGetSourcei(%d): NULL value", sid); |
---|
863 | |
---|
864 | SOURCEUNLOCK(); |
---|
865 | return; |
---|
866 | } |
---|
867 | |
---|
868 | |
---|
869 | /* |
---|
870 | * get param value, and store it in temp. We need it |
---|
871 | * for most, but not all, of the following params enums. |
---|
872 | */ |
---|
873 | temp = _alGetSourceParam( src, param ); |
---|
874 | if(temp != NULL) { |
---|
875 | /* If temp is not NULL, then there is a value set, |
---|
876 | * and we don't have to slog through the defaults |
---|
877 | * below. |
---|
878 | */ |
---|
879 | |
---|
880 | switch( param ) { |
---|
881 | case AL_LOOPING: |
---|
882 | case AL_SOURCE_RELATIVE: |
---|
883 | *retref = * (ALboolean *) temp; |
---|
884 | break; |
---|
885 | default: |
---|
886 | *retref = *temp; |
---|
887 | break; |
---|
888 | } |
---|
889 | |
---|
890 | SOURCEUNLOCK(); |
---|
891 | |
---|
892 | return; |
---|
893 | } |
---|
894 | |
---|
895 | switch(param) { |
---|
896 | case AL_BUFFERS_QUEUED: |
---|
897 | /* AL_BUFFERS_QUEUED is not setable, and has no default. */ |
---|
898 | /* Following code incorrectly subtracts the number of |
---|
899 | * processed buffers from the total number of buffers |
---|
900 | * queued. We return the total number of buffers queued at |
---|
901 | * all times. |
---|
902 | * |
---|
903 | * *retref = src->bid_queue.size - src->bid_queue.read_index; |
---|
904 | * |
---|
905 | * Following code correctly returns total number of buffers |
---|
906 | * queued. |
---|
907 | */ |
---|
908 | if(src->bid_queue.size == 1) |
---|
909 | { |
---|
910 | /* |
---|
911 | * Test to see if the only buffer queued is the 0 |
---|
912 | * buffer. If so, don't report it. |
---|
913 | */ |
---|
914 | if(src->bid_queue.queue[0] == 0) |
---|
915 | { |
---|
916 | *retref = 0; |
---|
917 | } |
---|
918 | else |
---|
919 | { |
---|
920 | /* |
---|
921 | * There was only one bid but it wasn't the |
---|
922 | * 0 buffer. |
---|
923 | */ |
---|
924 | *retref = 1; |
---|
925 | } |
---|
926 | } |
---|
927 | else |
---|
928 | { |
---|
929 | /* |
---|
930 | * More than one bid, not the 0 buffer. Or is it |
---|
931 | * possible to stick it in there? Do we count it? |
---|
932 | * |
---|
933 | * JIV FIXME: check it out. |
---|
934 | */ |
---|
935 | *retref = src->bid_queue.size; |
---|
936 | } |
---|
937 | break; |
---|
938 | case AL_BUFFERS_PROCESSED: |
---|
939 | /* AL_BUFFERS_PROCESSED is not setable, and has no default. */ |
---|
940 | |
---|
941 | if( src->bid_queue.read_index == 0 ) { |
---|
942 | /* |
---|
943 | * We're still reading the first bid, so we haven't |
---|
944 | * processed any yet. So return 0. |
---|
945 | */ |
---|
946 | *retref = 0; |
---|
947 | } else { |
---|
948 | *retref = src->bid_queue.read_index; |
---|
949 | } |
---|
950 | break; |
---|
951 | #ifdef AL_SUPPORT_BYTE_LOKI_SOURCE_ATTR_ |
---|
952 | case AL_BYTE_LOKI: |
---|
953 | /* AL_BYTE_LOKI is not setable, and has no default. */ |
---|
954 | switch(src->state) { |
---|
955 | case AL_PLAYING: |
---|
956 | case AL_PAUSED: |
---|
957 | *retref = src->srcParams.soundpos; |
---|
958 | break; |
---|
959 | default: |
---|
960 | *retref = -1; |
---|
961 | break; |
---|
962 | } |
---|
963 | break; |
---|
964 | #endif |
---|
965 | case AL_SOURCE_STATE: |
---|
966 | *retref = src->state; |
---|
967 | break; |
---|
968 | case AL_LOOPING: |
---|
969 | case AL_SOURCE_RELATIVE: |
---|
970 | /* |
---|
971 | * These all have default states, but must be handled |
---|
972 | * differently because they are booleans. |
---|
973 | */ |
---|
974 | { |
---|
975 | ALboolean val; |
---|
976 | |
---|
977 | _alSourceGetParamDefault( param, &val ); |
---|
978 | |
---|
979 | *retref = val; |
---|
980 | } |
---|
981 | break; |
---|
982 | case AL_BUFFER: |
---|
983 | /* These all have default states */ |
---|
984 | _alSourceGetParamDefault( param, retref ); |
---|
985 | break; |
---|
986 | default: |
---|
987 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
988 | "alGetSourcei: invalid or unsupported param 0x%x", |
---|
989 | param); |
---|
990 | |
---|
991 | _alDCSetError( AL_INVALID_ENUM ); |
---|
992 | |
---|
993 | break; |
---|
994 | } |
---|
995 | |
---|
996 | SOURCEUNLOCK(); |
---|
997 | |
---|
998 | return; |
---|
999 | } |
---|
1000 | |
---|
1001 | /* |
---|
1002 | * alGetSource3f( ALuint sid, ALenum param, |
---|
1003 | * ALfloat *value1, ALfloat *value2, ALfloat *value3) |
---|
1004 | * |
---|
1005 | * Retrieve the value of a (potentially) 3-tuple valued source attribute. |
---|
1006 | * |
---|
1007 | * If sid does not name a valid source, AL_INVALID_NAME. |
---|
1008 | * If param does not specify a source attribute, AL_INVALID_ENUM. |
---|
1009 | */ |
---|
1010 | void alGetSource3f( ALuint sid, ALenum param, |
---|
1011 | ALfloat *value1, ALfloat *value2, ALfloat *value3) |
---|
1012 | { |
---|
1013 | ALfloat safety_first[6]; |
---|
1014 | |
---|
1015 | if(( value1 == NULL ) && |
---|
1016 | ( value2 == NULL ) && |
---|
1017 | ( value3 == NULL )) |
---|
1018 | { |
---|
1019 | /* silently ignore */ |
---|
1020 | _alDebug( ALD_SOURCE, __FILE__, __LINE__, |
---|
1021 | "alGetSource3f: value passed is NULL" ); |
---|
1022 | |
---|
1023 | return; |
---|
1024 | } |
---|
1025 | |
---|
1026 | alGetSourcefv( sid, param, safety_first ); |
---|
1027 | |
---|
1028 | if(value1) |
---|
1029 | { |
---|
1030 | *value1 = safety_first[0]; |
---|
1031 | } |
---|
1032 | |
---|
1033 | if(value2) |
---|
1034 | { |
---|
1035 | *value2 = safety_first[1]; |
---|
1036 | } |
---|
1037 | |
---|
1038 | if(value3) |
---|
1039 | { |
---|
1040 | *value3 = safety_first[2]; |
---|
1041 | } |
---|
1042 | |
---|
1043 | return; |
---|
1044 | } |
---|
1045 | |
---|
1046 | /* |
---|
1047 | * alGetSourcef( ALuint sid, ALenum param, ALfloat *value ) |
---|
1048 | * |
---|
1049 | * Retrieve the value of a source attribute. |
---|
1050 | * |
---|
1051 | * If sid does not name a valid source, AL_INVALID_NAME. |
---|
1052 | * If param does not specify a source attribute, AL_INVALID_ENUM. |
---|
1053 | */ |
---|
1054 | void alGetSourcef( ALuint sid, ALenum param, ALfloat *value ) |
---|
1055 | { |
---|
1056 | ALfloat safety_first[6]; |
---|
1057 | |
---|
1058 | if( value == NULL ) |
---|
1059 | { |
---|
1060 | /* silently ignore */ |
---|
1061 | _alDebug( ALD_SOURCE, __FILE__, __LINE__, |
---|
1062 | "alGetSourcef: value passed is NULL" ); |
---|
1063 | |
---|
1064 | return; |
---|
1065 | } |
---|
1066 | |
---|
1067 | alGetSourcefv( sid, param, safety_first ); |
---|
1068 | |
---|
1069 | *value = safety_first[0]; |
---|
1070 | |
---|
1071 | return; |
---|
1072 | } |
---|
1073 | |
---|
1074 | /* |
---|
1075 | * alGetSourcefv( ALuint sid, ALenum param, ALfloat *values ) |
---|
1076 | * |
---|
1077 | * Retrieve the value of a source attribute. |
---|
1078 | * |
---|
1079 | * If sid does not name a valid source, AL_INVALID_NAME. |
---|
1080 | * If param does not specify a source attribute, AL_INVALID_ENUM. |
---|
1081 | */ |
---|
1082 | void alGetSourcefv( ALuint sid, ALenum param, ALfloat *values ) { |
---|
1083 | AL_source *src; |
---|
1084 | ALfloat *srcvals; |
---|
1085 | ALsizei numvalues; /* number of values to copy */ |
---|
1086 | |
---|
1087 | /* |
---|
1088 | * Check for invalid type request: eg integer, boolean |
---|
1089 | * or single float types. |
---|
1090 | * |
---|
1091 | * We need to convert these. |
---|
1092 | */ |
---|
1093 | switch( param ) { |
---|
1094 | case AL_GAIN: |
---|
1095 | case AL_GAIN_LINEAR_LOKI: |
---|
1096 | case AL_CONE_INNER_ANGLE: |
---|
1097 | case AL_CONE_OUTER_ANGLE: |
---|
1098 | case AL_CONE_OUTER_GAIN: |
---|
1099 | case AL_PITCH: |
---|
1100 | case AL_REFERENCE_DISTANCE: |
---|
1101 | case AL_MAX_DISTANCE: |
---|
1102 | case AL_ROLLOFF_FACTOR: |
---|
1103 | /* scalar param, only copy 1 value */ |
---|
1104 | numvalues = 1; |
---|
1105 | break; |
---|
1106 | case AL_LOOPING: |
---|
1107 | case AL_SOURCE_RELATIVE: |
---|
1108 | case AL_BUFFERS_QUEUED: |
---|
1109 | case AL_BUFFERS_PROCESSED: |
---|
1110 | #ifdef AL_SUPPORT_BYTE_LOKI_SOURCE_ATTR_ |
---|
1111 | case AL_BYTE_LOKI: |
---|
1112 | #endif |
---|
1113 | case AL_SOURCE_STATE: |
---|
1114 | case AL_BUFFER: |
---|
1115 | /* conversion to integer */ |
---|
1116 | do { |
---|
1117 | ALint temp = 0; |
---|
1118 | |
---|
1119 | alGetSourceiv( sid, param, &temp ); |
---|
1120 | |
---|
1121 | /* |
---|
1122 | * how do we know if we've failed? |
---|
1123 | * |
---|
1124 | * only populate first entry |
---|
1125 | */ |
---|
1126 | *values = temp; |
---|
1127 | |
---|
1128 | return; |
---|
1129 | } while(0); |
---|
1130 | break; |
---|
1131 | default: |
---|
1132 | /* |
---|
1133 | * either float vector or invalid |
---|
1134 | * param. |
---|
1135 | */ |
---|
1136 | numvalues = 3; |
---|
1137 | break; |
---|
1138 | } |
---|
1139 | |
---|
1140 | SOURCELOCK(); |
---|
1141 | src = _alDCGetSource( sid ); |
---|
1142 | |
---|
1143 | if(src == NULL) { |
---|
1144 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
1145 | "alGetSourcefv: source id %d is invalid", sid); |
---|
1146 | |
---|
1147 | _alDCSetError( AL_INVALID_NAME ); |
---|
1148 | |
---|
1149 | SOURCEUNLOCK(); |
---|
1150 | return; |
---|
1151 | } |
---|
1152 | |
---|
1153 | if( values == NULL ) { |
---|
1154 | /* silently ignore */ |
---|
1155 | |
---|
1156 | _alDebug( ALD_SOURCE, __FILE__, __LINE__, |
---|
1157 | "alGetSourcefv: values passed is NULL" ); |
---|
1158 | |
---|
1159 | SOURCEUNLOCK(); |
---|
1160 | |
---|
1161 | return; |
---|
1162 | } |
---|
1163 | |
---|
1164 | srcvals = _alGetSourceParam( src, param ); |
---|
1165 | if(srcvals != NULL) { |
---|
1166 | /* |
---|
1167 | * If srcvals is not NULL, then the attribute has been set by |
---|
1168 | * the application, and we don't need to set defaults. |
---|
1169 | */ |
---|
1170 | memcpy( values, srcvals, numvalues * sizeof *values ); |
---|
1171 | |
---|
1172 | SOURCEUNLOCK(); |
---|
1173 | |
---|
1174 | return; |
---|
1175 | } |
---|
1176 | |
---|
1177 | /* If we are at this point, srcvals is NULL, which means |
---|
1178 | * that either param is an invalid param, or that the value |
---|
1179 | * is not set. Check for a valid param, in which case we |
---|
1180 | * set the default, or set error. |
---|
1181 | */ |
---|
1182 | switch( param ) { |
---|
1183 | /* scalars */ |
---|
1184 | case AL_GAIN: |
---|
1185 | case AL_GAIN_LINEAR_LOKI: |
---|
1186 | case AL_MIN_GAIN: |
---|
1187 | case AL_MAX_GAIN: |
---|
1188 | case AL_CONE_INNER_ANGLE: |
---|
1189 | case AL_CONE_OUTER_ANGLE: |
---|
1190 | case AL_CONE_OUTER_GAIN: |
---|
1191 | case AL_PITCH: |
---|
1192 | case AL_ROLLOFF_FACTOR: |
---|
1193 | case AL_REFERENCE_DISTANCE: |
---|
1194 | case AL_MAX_DISTANCE: |
---|
1195 | case AL_VELOCITY: |
---|
1196 | case AL_POSITION: |
---|
1197 | case AL_DIRECTION: |
---|
1198 | _alSourceGetParamDefault( param, values ); |
---|
1199 | break; |
---|
1200 | default: |
---|
1201 | _alDebug( ALD_SOURCE, __FILE__, __LINE__, |
---|
1202 | "alGetSourcefv: param 0x%x either invalid or unset", |
---|
1203 | param); |
---|
1204 | |
---|
1205 | _alDCSetError( AL_INVALID_ENUM ); |
---|
1206 | |
---|
1207 | break; |
---|
1208 | } |
---|
1209 | |
---|
1210 | SOURCEUNLOCK(); |
---|
1211 | |
---|
1212 | return; |
---|
1213 | } |
---|
1214 | |
---|
1215 | /* |
---|
1216 | * _alGetSource( ALuint cid, ALuint sid ) |
---|
1217 | * |
---|
1218 | * Returns the address of the source sid from the |
---|
1219 | * context cid, or NULL if the cid or sid is |
---|
1220 | * invalid. |
---|
1221 | * |
---|
1222 | * Assumes locked context |
---|
1223 | */ |
---|
1224 | AL_source *_alGetSource( ALuint cid, ALuint sid ) { |
---|
1225 | AL_context *cc; |
---|
1226 | |
---|
1227 | cc = _alcGetContext( cid ); |
---|
1228 | if(cc == NULL) { |
---|
1229 | /* |
---|
1230 | * FIXME: Where, if at all, should be set the error? |
---|
1231 | */ |
---|
1232 | return NULL; |
---|
1233 | } |
---|
1234 | |
---|
1235 | return spool_index( &cc->source_pool, sid ); |
---|
1236 | } |
---|
1237 | |
---|
1238 | /* |
---|
1239 | * _alSplitSources( ALuint cid, ALuint sid, |
---|
1240 | * ALint nc, ALuint len, |
---|
1241 | * AL_buffer *buf, ALshort **buffs ); |
---|
1242 | * |
---|
1243 | * Populate buffs[0..nc-1][0..len/2-1] with data from buf, with offset into |
---|
1244 | * buf given by the position associated with the source named by sid in the |
---|
1245 | * context named by cid. |
---|
1246 | * |
---|
1247 | * This function delegates to static functions in the case of looping, |
---|
1248 | * callback or queue sounds. |
---|
1249 | * |
---|
1250 | * assumes locked context |
---|
1251 | * |
---|
1252 | * FIXME: what an ugly mess |
---|
1253 | */ |
---|
1254 | void _alSplitSources( ALuint cid, |
---|
1255 | ALuint sourceid, |
---|
1256 | ALint nc, ALuint len, |
---|
1257 | AL_buffer *samp, |
---|
1258 | ALshort **buffers ) { |
---|
1259 | AL_source *src; |
---|
1260 | AL_sourcestate *srcstate; |
---|
1261 | ALuint i; |
---|
1262 | char *bufptr = NULL; |
---|
1263 | static ALuint buflen = 0; |
---|
1264 | |
---|
1265 | src = _alGetSource( cid, sourceid ); |
---|
1266 | if(src == NULL) |
---|
1267 | { |
---|
1268 | /* bad mojo */ |
---|
1269 | return; |
---|
1270 | } |
---|
1271 | |
---|
1272 | /* |
---|
1273 | * if buflen is less that the passed len, this is probably |
---|
1274 | * the first initialization and we need to allocate the |
---|
1275 | * stereoptr (stereoptr being that buffer where we mix this |
---|
1276 | * sort of thing). |
---|
1277 | * |
---|
1278 | * or buflen is equal to len and stereoptr is null because |
---|
1279 | * the device was destroyed and then restarted. |
---|
1280 | */ |
---|
1281 | if(buflen < len || stereoptr == NULL) |
---|
1282 | { |
---|
1283 | buflen = len; |
---|
1284 | |
---|
1285 | stereoptr = realloc(stereoptr, buflen * 2); |
---|
1286 | |
---|
1287 | memset( stereoptr, 0, buflen * 2 ); |
---|
1288 | } |
---|
1289 | |
---|
1290 | if(stereoptr == NULL) |
---|
1291 | { |
---|
1292 | /* at this point, we're dead and don't know it. */ |
---|
1293 | return; |
---|
1294 | } |
---|
1295 | |
---|
1296 | /* Shouldn't happen. */ |
---|
1297 | if(len == 0) { |
---|
1298 | _alDebug(ALD_SOURCE, |
---|
1299 | __FILE__, __LINE__, |
---|
1300 | "wtf? size = 0!!!!!!"); |
---|
1301 | _alDebug(ALD_SOURCE, |
---|
1302 | __FILE__, __LINE__, |
---|
1303 | "Expect SIGSEGV soon"); |
---|
1304 | return; |
---|
1305 | } |
---|
1306 | |
---|
1307 | |
---|
1308 | srcstate = _alSourceQueueGetCurrentState( src ); |
---|
1309 | |
---|
1310 | /* |
---|
1311 | * If we have a callback function, read from it. |
---|
1312 | */ |
---|
1313 | if(samp->flags & ALB_CALLBACK) |
---|
1314 | { |
---|
1315 | srcstate->flags |= ALQ_CALLBACKBUFFER; |
---|
1316 | |
---|
1317 | _alSplitSourceCallback(cid, sourceid, nc, len, samp, buffers); |
---|
1318 | return; |
---|
1319 | } else { |
---|
1320 | /* make sure we mark this as a normal buffer */ |
---|
1321 | srcstate->flags &= ~ALQ_CALLBACKBUFFER; |
---|
1322 | } |
---|
1323 | |
---|
1324 | if(_alSourceBytesLeftByChannel(src, samp) < (ALint) len) |
---|
1325 | { |
---|
1326 | if(_alSourceIsLooping(src) == AL_TRUE && |
---|
1327 | _alSourceIsQueue(src) == AL_FALSE ) |
---|
1328 | { |
---|
1329 | /* |
---|
1330 | * looping sources, when they need to wrap, |
---|
1331 | * are handled via SplitSourceLooping. |
---|
1332 | */ |
---|
1333 | _alSplitSourceLooping(cid, sourceid, |
---|
1334 | nc, len, |
---|
1335 | samp, |
---|
1336 | buffers); |
---|
1337 | |
---|
1338 | return; |
---|
1339 | } |
---|
1340 | |
---|
1341 | if(_alSourceGetPendingBids(src) > 0) |
---|
1342 | { |
---|
1343 | /* |
---|
1344 | * There are more buffers in the queue, so |
---|
1345 | * do the wrapping. |
---|
1346 | */ |
---|
1347 | _alSplitSourceQueue(cid, sourceid, |
---|
1348 | nc, len, samp, buffers); |
---|
1349 | |
---|
1350 | return; |
---|
1351 | } |
---|
1352 | |
---|
1353 | len = _alSourceBytesLeftByChannel(src, samp); |
---|
1354 | |
---|
1355 | if((len <= 0) || (len > samp->size)) |
---|
1356 | { |
---|
1357 | /* really short sound */ |
---|
1358 | len = samp->size; |
---|
1359 | |
---|
1360 | return; |
---|
1361 | } |
---|
1362 | } |
---|
1363 | |
---|
1364 | if(_alSourceGetPendingBids(src) > 0) |
---|
1365 | assert(src->bid_queue.read_index < src->bid_queue.size ); |
---|
1366 | |
---|
1367 | for(i = 0; i < _alcGetNumSpeakers(cid); i++) |
---|
1368 | { |
---|
1369 | bufptr = _alSourceGetBufptr(src, samp, i); |
---|
1370 | |
---|
1371 | memcpy(buffers[i], bufptr, len); |
---|
1372 | } |
---|
1373 | |
---|
1374 | return; |
---|
1375 | } |
---|
1376 | |
---|
1377 | /* |
---|
1378 | * _alSplitSourceCallback( ALuint cid, |
---|
1379 | * ALuint sourceid, |
---|
1380 | * ALint nc, ALuint len, |
---|
1381 | * AL_buffer *samp, |
---|
1382 | * ALshort **buffers ) |
---|
1383 | * |
---|
1384 | * Special SplitSource for callback sources, which need to have their |
---|
1385 | * data populated not from the buffer's original data, but from the |
---|
1386 | * callback. |
---|
1387 | */ |
---|
1388 | static void _alSplitSourceCallback( ALuint cid, |
---|
1389 | ALuint sourceid, |
---|
1390 | ALint nc, ALuint len, |
---|
1391 | AL_buffer *samp, |
---|
1392 | ALshort **buffers ) { |
---|
1393 | AL_source *src; |
---|
1394 | int *bid = NULL; |
---|
1395 | ALuint nsamps = 0; |
---|
1396 | int resultsamps = -1; |
---|
1397 | int bufchannels = _alGetChannelsFromFormat( samp->format ); |
---|
1398 | |
---|
1399 | src = _alGetSource( cid, sourceid ); |
---|
1400 | if(src == NULL) { |
---|
1401 | /* |
---|
1402 | * Should we really be setting the error here? |
---|
1403 | */ |
---|
1404 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
1405 | "_alSplitSourceCallback: invalid source id %d", |
---|
1406 | sourceid); |
---|
1407 | |
---|
1408 | _alSetError(cid, AL_INVALID_NAME); |
---|
1409 | return; |
---|
1410 | } |
---|
1411 | |
---|
1412 | bid = (int *) _alGetSourceParam(src, AL_BUFFER); |
---|
1413 | if(bid == NULL) { |
---|
1414 | return; |
---|
1415 | } |
---|
1416 | |
---|
1417 | nsamps = bufchannels * len / sizeof **buffers; |
---|
1418 | |
---|
1419 | resultsamps = samp->callback(sourceid, *bid, |
---|
1420 | stereoptr, |
---|
1421 | samp->format, |
---|
1422 | samp->frequency, |
---|
1423 | nsamps); |
---|
1424 | |
---|
1425 | if(resultsamps < 0) { |
---|
1426 | /* callback problem */ |
---|
1427 | _alDebug(ALD_STREAMING, __FILE__, __LINE__, |
---|
1428 | "%d callback returned -1", sourceid); |
---|
1429 | |
---|
1430 | memset(stereoptr, 0, len); |
---|
1431 | |
---|
1432 | _alRemoveSourceFromMixer(sourceid); |
---|
1433 | |
---|
1434 | return; |
---|
1435 | } |
---|
1436 | |
---|
1437 | if(resultsamps < (ALint) nsamps) { |
---|
1438 | /* source is over */ |
---|
1439 | _alDebug(ALD_STREAMING, __FILE__, __LINE__, |
---|
1440 | "time for %d to die", sourceid); |
---|
1441 | |
---|
1442 | /* FIXME: |
---|
1443 | * |
---|
1444 | * offset memset at resultsamps / width to end |
---|
1445 | |
---|
1446 | memset(stereoptr, 0, len); |
---|
1447 | */ |
---|
1448 | |
---|
1449 | /* |
---|
1450 | * we want this to end. please. |
---|
1451 | * What a cheat. |
---|
1452 | */ |
---|
1453 | |
---|
1454 | src->srcParams.soundpos = samp->size + nc * resultsamps * sizeof **buffers; |
---|
1455 | } |
---|
1456 | |
---|
1457 | /* set len to the number of bytes we actually got back |
---|
1458 | * from the callback. |
---|
1459 | */ |
---|
1460 | len = resultsamps * sizeof **buffers / bufchannels; |
---|
1461 | |
---|
1462 | /* |
---|
1463 | * since we're decoding it, copy it to the orig_buffers so we only |
---|
1464 | * have to do it once. |
---|
1465 | */ |
---|
1466 | _alMonoify(buffers, stereoptr, len, samp->num_buffers, bufchannels); |
---|
1467 | |
---|
1468 | samp->size += nc * resultsamps * sizeof **buffers; |
---|
1469 | |
---|
1470 | return; |
---|
1471 | } |
---|
1472 | |
---|
1473 | /* |
---|
1474 | * _alSplitSourceLooping( ALuint cid, |
---|
1475 | * ALuint sourceid, |
---|
1476 | * ALint nc, ALuint len, |
---|
1477 | * AL_buffer *samp, |
---|
1478 | * ALshort **buffers ) |
---|
1479 | * |
---|
1480 | * _alSplitSourceLooping is called to split a looping source that |
---|
1481 | * has reached the loop point (ie, point where it needs to wrap around. |
---|
1482 | * |
---|
1483 | * This is very ugly, and needs to be cleaned up. I'd prefer not to |
---|
1484 | * have a special case so if you're looking to contribute, please |
---|
1485 | * consider redoing this. |
---|
1486 | * |
---|
1487 | * assumes locked context |
---|
1488 | * |
---|
1489 | * FIXME: this is so ugly. |
---|
1490 | */ |
---|
1491 | static void _alSplitSourceLooping( ALuint cid, |
---|
1492 | ALuint sourceid, |
---|
1493 | ALint nc, ALuint len, |
---|
1494 | AL_buffer *samp, |
---|
1495 | ALshort **buffers ) { |
---|
1496 | AL_source *src; |
---|
1497 | long mixable; |
---|
1498 | long remaining; |
---|
1499 | char *bufptr; |
---|
1500 | int i; |
---|
1501 | int bi; |
---|
1502 | int bufchannels = _alGetChannelsFromFormat(samp->format); |
---|
1503 | char *mdp; |
---|
1504 | |
---|
1505 | src = _alGetSource(cid, sourceid); |
---|
1506 | if(src == NULL) { |
---|
1507 | /* |
---|
1508 | * Should we really be setting the error here? |
---|
1509 | */ |
---|
1510 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
1511 | "_alSplitSourceLooping: invalid source id %d", |
---|
1512 | sourceid); |
---|
1513 | |
---|
1514 | _alSetError(cid, AL_INVALID_NAME); |
---|
1515 | return; |
---|
1516 | } |
---|
1517 | |
---|
1518 | mixable = _alSourceBytesLeftByChannel(src, samp); |
---|
1519 | remaining = 0; |
---|
1520 | |
---|
1521 | assert(mixable >= 0); |
---|
1522 | |
---|
1523 | /* in case samp->size < len, we don't want |
---|
1524 | * to overwrite with the memcpy |
---|
1525 | */ |
---|
1526 | if(len * bufchannels <= samp->size) { |
---|
1527 | /* normal case */ |
---|
1528 | remaining = (len * bufchannels) - mixable; |
---|
1529 | |
---|
1530 | for(i = 0; i < nc; i++) { |
---|
1531 | bufptr = _alSourceGetBufptr(src, samp, i); |
---|
1532 | |
---|
1533 | memcpy(buffers[i], bufptr, mixable); |
---|
1534 | memcpy(buffers[i] + mixable/2, samp->orig_buffers[i], |
---|
1535 | remaining); |
---|
1536 | } |
---|
1537 | |
---|
1538 | return; |
---|
1539 | } else { |
---|
1540 | /* really small looping sample */ |
---|
1541 | if(mixable < 0) { |
---|
1542 | /* we loop sound in monoptr */ |
---|
1543 | mixable = src->srcParams.soundpos % len; |
---|
1544 | } |
---|
1545 | |
---|
1546 | for(bi = 0; bi < nc; bi++) { |
---|
1547 | mdp = (char *) buffers[bi]; |
---|
1548 | |
---|
1549 | /* copy samp again and again */ |
---|
1550 | for(i = mixable; i < (signed int) len; i += samp->size) { |
---|
1551 | int copylen; |
---|
1552 | |
---|
1553 | if(i + samp->size < len) { |
---|
1554 | copylen = samp->size; |
---|
1555 | } else { |
---|
1556 | copylen = len - i; |
---|
1557 | } |
---|
1558 | |
---|
1559 | memcpy(&mdp[i], samp->orig_buffers[bi], copylen); |
---|
1560 | } |
---|
1561 | |
---|
1562 | for(i = 0; i < mixable; i += samp->size) { |
---|
1563 | int copylen; |
---|
1564 | |
---|
1565 | if(i + samp->size < (unsigned int) mixable) { |
---|
1566 | copylen = samp->size; |
---|
1567 | } else { |
---|
1568 | copylen = mixable - i; |
---|
1569 | } |
---|
1570 | |
---|
1571 | memcpy(&mdp[i], |
---|
1572 | samp->orig_buffers[bi], |
---|
1573 | copylen); |
---|
1574 | } |
---|
1575 | } |
---|
1576 | |
---|
1577 | return; |
---|
1578 | } |
---|
1579 | #if 0 |
---|
1580 | /* ToDo: This is never reached?! */ |
---|
1581 | for(i = 0; i < nc; i++) { |
---|
1582 | bufptr = _alSourceGetBufptr(src, samp, i); |
---|
1583 | |
---|
1584 | memcpy(buffers[i], bufptr, len); |
---|
1585 | } |
---|
1586 | #endif |
---|
1587 | } |
---|
1588 | |
---|
1589 | /* |
---|
1590 | * _alSplitSourceQueue( ALuint cid, |
---|
1591 | * ALuint sourceid, |
---|
1592 | * ALint nc, ALuint len, |
---|
1593 | * AL_buffer *samp, |
---|
1594 | * ALshort **buffers ) |
---|
1595 | * |
---|
1596 | * _alSplitSourceQueue is called to ease the transition between |
---|
1597 | * buffers in a source's queue. |
---|
1598 | * |
---|
1599 | * This is very ugly, and needs to be cleaned up. I'd prefer not to |
---|
1600 | * have a special case so if you're looking to contribute, please |
---|
1601 | * consider redoing this. |
---|
1602 | * |
---|
1603 | * assumes locked context |
---|
1604 | * |
---|
1605 | * FIXME: this is so ugly. |
---|
1606 | */ |
---|
1607 | static void _alSplitSourceQueue( ALuint cid, |
---|
1608 | ALuint sourceid, |
---|
1609 | ALint nc, ALuint len, |
---|
1610 | AL_buffer *samp, |
---|
1611 | ALshort **buffers ) |
---|
1612 | { |
---|
1613 | AL_source *src; |
---|
1614 | AL_buffer *nextsamp; |
---|
1615 | long mixable; |
---|
1616 | ALuint remaining; |
---|
1617 | char *bufptr; |
---|
1618 | ALuint nextbid; |
---|
1619 | void *nextpcm; |
---|
1620 | int new_soundpos = -1; |
---|
1621 | int old_soundpos; |
---|
1622 | int old_readindex; |
---|
1623 | ALuint collected_bytes = 0; |
---|
1624 | int i; |
---|
1625 | |
---|
1626 | src = _alGetSource(cid, sourceid); |
---|
1627 | if(src == NULL) |
---|
1628 | { |
---|
1629 | /* |
---|
1630 | * Should we really be setting the error here? |
---|
1631 | */ |
---|
1632 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
1633 | "_alSplitSourceQueue: invalid source id %d", |
---|
1634 | sourceid); |
---|
1635 | |
---|
1636 | _alSetError(cid, AL_INVALID_NAME); |
---|
1637 | return; |
---|
1638 | } |
---|
1639 | |
---|
1640 | old_soundpos = src->srcParams.soundpos; |
---|
1641 | old_readindex = src->bid_queue.read_index; |
---|
1642 | |
---|
1643 | #if 1 |
---|
1644 | if( _alSourceBytesLeftByChannel(src, samp) <= 0) |
---|
1645 | { |
---|
1646 | |
---|
1647 | ALuint bid = 0; |
---|
1648 | |
---|
1649 | /* no data left in this buffer */ |
---|
1650 | src->bid_queue.read_index++; |
---|
1651 | if(src->bid_queue.read_index >= src->bid_queue.size) |
---|
1652 | { |
---|
1653 | /* JIV FIXME: breaks queue looping? */ |
---|
1654 | if(_alSourceIsLooping(src)) |
---|
1655 | { |
---|
1656 | src->bid_queue.read_index = 0; |
---|
1657 | } |
---|
1658 | else |
---|
1659 | { |
---|
1660 | /* JIV FIXME: doesn't mix last queue bit */ |
---|
1661 | |
---|
1662 | return; |
---|
1663 | } |
---|
1664 | } |
---|
1665 | |
---|
1666 | bid = src->bid_queue.queue[src->bid_queue.read_index]; |
---|
1667 | samp = _alGetBuffer(bid); |
---|
1668 | if(samp == NULL) |
---|
1669 | { |
---|
1670 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
1671 | "_alSplitSourceQueue: null buffer"); |
---|
1672 | |
---|
1673 | return; |
---|
1674 | } |
---|
1675 | |
---|
1676 | src->srcParams.soundpos = 0; |
---|
1677 | |
---|
1678 | /* ho ho ho ho */ |
---|
1679 | _alSplitSources(cid, sourceid, nc, len, samp, buffers); |
---|
1680 | return; |
---|
1681 | } |
---|
1682 | #endif |
---|
1683 | |
---|
1684 | nextbid = src->bid_queue.queue[src->bid_queue.read_index + 1]; |
---|
1685 | nextsamp = _alGetBuffer(nextbid); |
---|
1686 | if(nextsamp == NULL) |
---|
1687 | { |
---|
1688 | /* |
---|
1689 | * Should we really be setting the error here? |
---|
1690 | */ |
---|
1691 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
1692 | "_alSplitSourceQueue: shouldn't happen"); |
---|
1693 | |
---|
1694 | return; |
---|
1695 | } |
---|
1696 | |
---|
1697 | /* assert(len >= 0); */ |
---|
1698 | /* assert(src->srcParams.soundpos >= 0); */ |
---|
1699 | |
---|
1700 | /* |
---|
1701 | * |
---|
1702 | * First, test whether we can get enough data to fill the |
---|
1703 | * request with the current buffer's data ( minus current sound |
---|
1704 | * pos ) plus the next buffer's data. |
---|
1705 | */ |
---|
1706 | if( samp->size + nextsamp->size >= len + src->srcParams.soundpos ) |
---|
1707 | { |
---|
1708 | #ifdef DEBUG_QUEUE |
---|
1709 | _alDebug(ALD_QUEUE, __FILE__, __LINE__, |
---|
1710 | "Queue filling from two buffers ( size + nextsize (%d) vs soundpos + len %d", |
---|
1711 | samp->size + nextsamp->size, |
---|
1712 | len + src->srcParams.soundpos); |
---|
1713 | #endif |
---|
1714 | |
---|
1715 | /* we can fill the request */ |
---|
1716 | mixable = _alSourceBytesLeftByChannel(src, samp); |
---|
1717 | remaining = 0; |
---|
1718 | |
---|
1719 | assert( mixable >= 0 ); |
---|
1720 | |
---|
1721 | /* |
---|
1722 | * in case samp->size < len, we don't want |
---|
1723 | * to overwrite with the memcpy |
---|
1724 | */ |
---|
1725 | remaining = len - mixable; |
---|
1726 | |
---|
1727 | #ifdef DEBUG_QUEUE |
---|
1728 | _alDebug(ALD_QUEUE, __FILE__, __LINE__, |
---|
1729 | "first buffer %d, second buffer %d", |
---|
1730 | mixable, remaining); |
---|
1731 | #endif |
---|
1732 | |
---|
1733 | |
---|
1734 | for(i = 0; i < nc; i++) { |
---|
1735 | bufptr = _alSourceGetBufptr(src, samp, i); |
---|
1736 | nextpcm = nextsamp->orig_buffers[i]; |
---|
1737 | |
---|
1738 | memcpy(buffers[i], bufptr, mixable); |
---|
1739 | memcpy(buffers[i] + mixable/2, nextpcm, remaining); |
---|
1740 | } |
---|
1741 | |
---|
1742 | src->srcParams.new_readindex = src->bid_queue.read_index + 1; |
---|
1743 | src->srcParams.new_soundpos = remaining; |
---|
1744 | |
---|
1745 | if(remaining >= nextsamp->size) |
---|
1746 | { |
---|
1747 | /* we read all of the next buffer */ |
---|
1748 | src->srcParams.new_readindex++; |
---|
1749 | } |
---|
1750 | |
---|
1751 | #ifdef DEBUG_QUEUE |
---|
1752 | _alDebug(ALD_QUEUE, __FILE__, __LINE__, |
---|
1753 | "SplitSourceQueue, read_index is now %d", |
---|
1754 | src->srcParams.new_readindex); |
---|
1755 | #endif |
---|
1756 | |
---|
1757 | return; |
---|
1758 | } |
---|
1759 | |
---|
1760 | #ifdef DEBUG_QUEUE |
---|
1761 | fprintf(stderr, "Splitting from multiple needed %d left %d\n", |
---|
1762 | len, |
---|
1763 | samp->size - src->srcParams.soundpos); |
---|
1764 | #endif |
---|
1765 | |
---|
1766 | /* |
---|
1767 | * We need to get data from more than one buffer |
---|
1768 | */ |
---|
1769 | while( collected_bytes < len ) |
---|
1770 | { |
---|
1771 | int bid; |
---|
1772 | |
---|
1773 | if( src->bid_queue.read_index >= src->bid_queue.size ) |
---|
1774 | { |
---|
1775 | #ifdef DEBUG_QUEUE |
---|
1776 | fprintf(stderr, "end of buffer queue\n" ); |
---|
1777 | #endif |
---|
1778 | |
---|
1779 | /* |
---|
1780 | * Read past the last buffer and we still |
---|
1781 | * have to write out. Pad the rest with silence, |
---|
1782 | * I guess. Do we support looping queued buffers? |
---|
1783 | */ |
---|
1784 | for(i = 0; i < nc; i++) |
---|
1785 | { |
---|
1786 | memset(buffers[i] + collected_bytes/2, |
---|
1787 | 0, len - collected_bytes); |
---|
1788 | } |
---|
1789 | |
---|
1790 | src->bid_queue.read_index = old_readindex; |
---|
1791 | src->srcParams.soundpos = old_soundpos; |
---|
1792 | |
---|
1793 | return; |
---|
1794 | } |
---|
1795 | |
---|
1796 | assert(src->bid_queue.read_index < src->bid_queue.size ); |
---|
1797 | |
---|
1798 | bid = src->bid_queue.queue[src->bid_queue.read_index]; |
---|
1799 | samp = _alGetBuffer(bid); |
---|
1800 | |
---|
1801 | mixable = samp->size - src->srcParams.soundpos; |
---|
1802 | |
---|
1803 | if(mixable > (int) (len - collected_bytes)) |
---|
1804 | { |
---|
1805 | mixable = len - collected_bytes; |
---|
1806 | new_soundpos = src->srcParams.soundpos + mixable; |
---|
1807 | } |
---|
1808 | else |
---|
1809 | { |
---|
1810 | src->bid_queue.read_index++; |
---|
1811 | new_soundpos = 0; |
---|
1812 | } |
---|
1813 | |
---|
1814 | /* copy from current buffer */ |
---|
1815 | for(i = 0; i < nc; i++) |
---|
1816 | { |
---|
1817 | bufptr = _alSourceGetBufptr(src, samp, i); |
---|
1818 | |
---|
1819 | memcpy(buffers[i] + collected_bytes/2, bufptr, mixable); |
---|
1820 | } |
---|
1821 | |
---|
1822 | collected_bytes += mixable; |
---|
1823 | |
---|
1824 | src->srcParams.soundpos = new_soundpos; |
---|
1825 | } |
---|
1826 | |
---|
1827 | src->srcParams.new_readindex = src->bid_queue.read_index; |
---|
1828 | src->srcParams.new_soundpos = new_soundpos; |
---|
1829 | |
---|
1830 | src->bid_queue.read_index = old_readindex; |
---|
1831 | src->srcParams.soundpos = old_soundpos; |
---|
1832 | |
---|
1833 | return; |
---|
1834 | } |
---|
1835 | |
---|
1836 | /* |
---|
1837 | * _alMonoifyOffset( ALshort **dstref, ALuint offset, |
---|
1838 | * ALvoid *src, ALuint src_size, |
---|
1839 | * ALuint dest_channels, ALuint src_channels ) |
---|
1840 | * |
---|
1841 | * Copies the interleaved data from src[0..(src_size/2)-1] to |
---|
1842 | * dstret[0..dest_channels-1], splitting it into seperate channels. |
---|
1843 | * src_channels describes the period of the channel repetition in src, |
---|
1844 | * dest_channels describes the number of independant buffers in dstref. |
---|
1845 | * src_size is the size of src in bytes, and offset is the offset into each |
---|
1846 | * seperate channel in dstref where the copying begins. |
---|
1847 | * |
---|
1848 | * assumes locked context |
---|
1849 | */ |
---|
1850 | void _alMonoifyOffset(ALshort **dstref, ALuint offset, |
---|
1851 | ALvoid *srcp, ALuint size, ALuint dc, ALuint sc) { |
---|
1852 | switch( dc ) { |
---|
1853 | case 4: |
---|
1854 | switch(sc) { |
---|
1855 | case 1: |
---|
1856 | _alMonoifyOffset1to4(dstref, offset, srcp, size); |
---|
1857 | break; |
---|
1858 | case 2: |
---|
1859 | _alMonoifyOffset2to4(dstref, offset, srcp, size); |
---|
1860 | break; |
---|
1861 | case 4: |
---|
1862 | _alMonoifyOffset4to4(dstref, offset, srcp, size); |
---|
1863 | break; |
---|
1864 | default: |
---|
1865 | fprintf(stderr, "unhandled Monoify (dc %d sc %d)\n", |
---|
1866 | dc, sc); |
---|
1867 | break; |
---|
1868 | } |
---|
1869 | break; |
---|
1870 | case 2: |
---|
1871 | switch(sc) { |
---|
1872 | case 1: |
---|
1873 | _alMonoifyOffset1to2(dstref, offset, srcp, size); |
---|
1874 | break; |
---|
1875 | case 2: |
---|
1876 | _alMonoifyOffset2to2(dstref, offset, srcp, size); |
---|
1877 | break; |
---|
1878 | default: |
---|
1879 | fprintf(stderr, "unhandled Monoify (dc %d sc %d)\n", |
---|
1880 | dc, sc); |
---|
1881 | break; |
---|
1882 | } |
---|
1883 | break; |
---|
1884 | case 1: |
---|
1885 | switch(sc) { |
---|
1886 | case 1: |
---|
1887 | memcpy((char *) *dstref + offset, srcp, size); |
---|
1888 | break; |
---|
1889 | default: |
---|
1890 | fprintf(stderr, "unhandled Monoify (dc %d sc %d)\n", |
---|
1891 | dc, sc); |
---|
1892 | break; |
---|
1893 | } |
---|
1894 | break; |
---|
1895 | default: |
---|
1896 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
1897 | "Unhandled dc %d", dc); |
---|
1898 | break; |
---|
1899 | } |
---|
1900 | |
---|
1901 | return; |
---|
1902 | } |
---|
1903 | |
---|
1904 | static void _alMonoifyOffset1to4( ALshort **dsts, ALuint offset, |
---|
1905 | ALvoid *srcp, ALuint size) { |
---|
1906 | ALshort *src = (ALshort *) srcp; |
---|
1907 | ALshort *dst0 = dsts[0]; |
---|
1908 | ALshort *dst1 = dsts[1]; |
---|
1909 | ALshort *dst2 = dsts[2]; |
---|
1910 | ALshort *dst3 = dsts[3]; |
---|
1911 | |
---|
1912 | int len = size / sizeof *src; |
---|
1913 | int i; |
---|
1914 | |
---|
1915 | offset /= sizeof **dsts; |
---|
1916 | dst0 += offset; |
---|
1917 | dst1 += offset; |
---|
1918 | dst2 += offset; |
---|
1919 | dst3 += offset; |
---|
1920 | |
---|
1921 | for(i = 0; i < len; i++) { |
---|
1922 | dst0[i] = src[0]; |
---|
1923 | dst1[i] = src[0]; |
---|
1924 | dst2[i] = src[0]; |
---|
1925 | dst3[i] = src[0]; |
---|
1926 | |
---|
1927 | src++; |
---|
1928 | } |
---|
1929 | |
---|
1930 | return; |
---|
1931 | } |
---|
1932 | |
---|
1933 | |
---|
1934 | |
---|
1935 | static void _alMonoifyOffset2to4( ALshort **dsts, ALuint offset, |
---|
1936 | ALvoid *srcp, ALuint size) { |
---|
1937 | ALshort *src = (ALshort *) srcp; |
---|
1938 | ALshort *dst0 = dsts[0]; |
---|
1939 | ALshort *dst1 = dsts[1]; |
---|
1940 | ALshort *dst2 = dsts[2]; |
---|
1941 | ALshort *dst3 = dsts[3]; |
---|
1942 | |
---|
1943 | int len = size / sizeof *src; |
---|
1944 | int i; |
---|
1945 | |
---|
1946 | offset /= sizeof **dsts; |
---|
1947 | dst0 += offset; |
---|
1948 | dst1 += offset; |
---|
1949 | dst2 += offset; |
---|
1950 | dst3 += offset; |
---|
1951 | |
---|
1952 | for(i = 0; i < len; i++) { |
---|
1953 | dst0[i] = src[0]; |
---|
1954 | dst1[i] = src[1]; |
---|
1955 | dst2[i] = src[0]; |
---|
1956 | dst3[i] = src[1]; |
---|
1957 | |
---|
1958 | src += 2; |
---|
1959 | } |
---|
1960 | |
---|
1961 | return; |
---|
1962 | } |
---|
1963 | |
---|
1964 | |
---|
1965 | |
---|
1966 | static void _alMonoifyOffset4to4( ALshort **dsts, ALuint offset, |
---|
1967 | ALvoid *srcp, ALuint size) { |
---|
1968 | ALshort *src = (ALshort *) srcp; |
---|
1969 | ALshort *dst0 = dsts[0]; |
---|
1970 | ALshort *dst1 = dsts[1]; |
---|
1971 | ALshort *dst2 = dsts[2]; |
---|
1972 | ALshort *dst3 = dsts[3]; |
---|
1973 | |
---|
1974 | int len = size / sizeof *src; |
---|
1975 | int i; |
---|
1976 | |
---|
1977 | offset /= sizeof **dsts; |
---|
1978 | dst0 += offset; |
---|
1979 | dst1 += offset; |
---|
1980 | dst2 += offset; |
---|
1981 | dst3 += offset; |
---|
1982 | |
---|
1983 | for(i = 0; i < len; i++) { |
---|
1984 | dst0[i] = src[0]; |
---|
1985 | dst1[i] = src[1]; |
---|
1986 | dst2[i] = src[2]; |
---|
1987 | dst3[i] = src[3]; |
---|
1988 | |
---|
1989 | src += 4; |
---|
1990 | } |
---|
1991 | |
---|
1992 | return; |
---|
1993 | } |
---|
1994 | |
---|
1995 | |
---|
1996 | /* |
---|
1997 | * _alMonoifyOffset1to2( ALshort **dsts, ALuint offset, |
---|
1998 | * ALvoid *srcp, ALuint size) |
---|
1999 | * |
---|
2000 | * Helper function for _alMonoifyOffset. Converts from stereo to 2 channels |
---|
2001 | * of buffer data. |
---|
2002 | */ |
---|
2003 | static void _alMonoifyOffset1to2( ALshort **dsts, ALuint offset, |
---|
2004 | ALvoid *srcp, ALuint size) { |
---|
2005 | ALshort *src = (ALshort *) srcp; |
---|
2006 | ALshort *dst0 = dsts[0]; |
---|
2007 | ALshort *dst1 = dsts[1]; |
---|
2008 | int len = size / sizeof *src; |
---|
2009 | int i; |
---|
2010 | |
---|
2011 | offset /= sizeof **dsts; |
---|
2012 | dst0 += offset; |
---|
2013 | dst1 += offset; |
---|
2014 | |
---|
2015 | for(i = 0; i < len; i++) { |
---|
2016 | dst0[i] = src[0]; |
---|
2017 | dst1[i] = src[0]; |
---|
2018 | |
---|
2019 | src++; |
---|
2020 | } |
---|
2021 | |
---|
2022 | return; |
---|
2023 | } |
---|
2024 | |
---|
2025 | /* |
---|
2026 | * _alMonoifyOffset2to2( ALshort **dsts, ALuint offset, |
---|
2027 | * ALvoid *srcp, ALuint size ) |
---|
2028 | * |
---|
2029 | * Helper function for _alMonoifyOffset. Converts from stereo to 2 channels |
---|
2030 | * of buffer data. |
---|
2031 | */ |
---|
2032 | static void _alMonoifyOffset2to2( ALshort **dsts, ALuint offset, |
---|
2033 | ALvoid *srcp, ALuint size) { |
---|
2034 | ALshort *src = (ALshort *) srcp; |
---|
2035 | ALshort *dst0 = dsts[0]; |
---|
2036 | ALshort *dst1 = dsts[1]; |
---|
2037 | int len = size / sizeof *src; |
---|
2038 | int i; |
---|
2039 | |
---|
2040 | offset /= sizeof **dsts; |
---|
2041 | |
---|
2042 | dst0 += offset; |
---|
2043 | dst1 += offset; |
---|
2044 | |
---|
2045 | for(i = 0; i < len; i++) { |
---|
2046 | dst0[i] = src[0]; |
---|
2047 | dst1[i] = src[1]; |
---|
2048 | |
---|
2049 | src += 2; |
---|
2050 | } |
---|
2051 | |
---|
2052 | return; |
---|
2053 | } |
---|
2054 | |
---|
2055 | /* |
---|
2056 | * _alChannelifyOffset( ALshort *dst, ALuint offset, |
---|
2057 | * ALshort **srcs, ALuint size, ALuint nc ) |
---|
2058 | * |
---|
2059 | * This function is sort of the complement of _alMonoifyOffset. Data is |
---|
2060 | * copied from srcs[0..nc-1][offset/2..(offset + size)/2-1] into an |
---|
2061 | * interleaved array dst. |
---|
2062 | * |
---|
2063 | * assumes locked context |
---|
2064 | * |
---|
2065 | * FIXME: handle cases with > 2 channels |
---|
2066 | */ |
---|
2067 | void _alChannelifyOffset( ALshort *dst, ALuint offset, |
---|
2068 | ALshort **srcs, ALuint size, ALuint nc ) |
---|
2069 | { |
---|
2070 | switch( nc ) |
---|
2071 | { |
---|
2072 | case 4: |
---|
2073 | _alChannelify4Offset(dst, offset, srcs, size); |
---|
2074 | break; |
---|
2075 | case 2: |
---|
2076 | _alChannelify2Offset(dst, offset, srcs, size); |
---|
2077 | break; |
---|
2078 | case 1: |
---|
2079 | memcpy( dst, srcs[0] + offset/sizeof *srcs, size ); |
---|
2080 | break; |
---|
2081 | default: |
---|
2082 | break; |
---|
2083 | } |
---|
2084 | |
---|
2085 | return; |
---|
2086 | } |
---|
2087 | |
---|
2088 | /* |
---|
2089 | * _alChannelify2Offset( ALshort *dst, ALuint offset, |
---|
2090 | * ALshort **srcs, ALuint size ) |
---|
2091 | * |
---|
2092 | * This function is like ChannelifyOffset, but specificly for those cases |
---|
2093 | * where the number of channels in srcs is 2. |
---|
2094 | * |
---|
2095 | * assumes locked context |
---|
2096 | */ |
---|
2097 | void _alChannelify2Offset( ALshort *dst, ALuint offset, |
---|
2098 | ALshort **srcs, ALuint size ) { |
---|
2099 | ALshort *src0 = &srcs[0][offset / sizeof *srcs]; |
---|
2100 | ALshort *src1 = &srcs[1][offset / sizeof *srcs]; |
---|
2101 | ALuint k; |
---|
2102 | |
---|
2103 | size /= sizeof *dst; /* we need sample offsets */ |
---|
2104 | |
---|
2105 | for( k = 0; k < size; k++ ) { |
---|
2106 | dst[0] = src0[k]; |
---|
2107 | dst[1] = src1[k]; |
---|
2108 | |
---|
2109 | dst += 2; |
---|
2110 | } |
---|
2111 | |
---|
2112 | return; |
---|
2113 | } |
---|
2114 | |
---|
2115 | /* |
---|
2116 | * _alChannelify4Offset( ALshort *dst, ALuint offset, |
---|
2117 | * ALshort **srcs, ALuint size ) |
---|
2118 | * |
---|
2119 | * This function is like ChannelifyOffset, but specificly for those cases |
---|
2120 | * where the number of channels in srcs is 4. |
---|
2121 | * |
---|
2122 | * assumes locked context |
---|
2123 | */ |
---|
2124 | void _alChannelify4Offset( ALshort *dst, ALuint offset, |
---|
2125 | ALshort **srcs, ALuint size ) { |
---|
2126 | ALshort *src0 = &srcs[0][offset / sizeof *srcs]; |
---|
2127 | ALshort *src1 = &srcs[1][offset / sizeof *srcs]; |
---|
2128 | ALshort *src2 = &srcs[2][offset / sizeof *srcs]; |
---|
2129 | ALshort *src3 = &srcs[3][offset / sizeof *srcs]; |
---|
2130 | ALuint k; |
---|
2131 | |
---|
2132 | size /= sizeof *dst; /* we need sample offsets */ |
---|
2133 | |
---|
2134 | for( k = 0; k < size; k++ ) { |
---|
2135 | dst[0] = src0[k]; |
---|
2136 | dst[1] = src1[k]; |
---|
2137 | dst[2] = src2[k]; |
---|
2138 | dst[3] = src3[k]; |
---|
2139 | |
---|
2140 | dst += 4; |
---|
2141 | } |
---|
2142 | |
---|
2143 | return; |
---|
2144 | } |
---|
2145 | |
---|
2146 | |
---|
2147 | |
---|
2148 | /* |
---|
2149 | * alDeleteSources( ALsizei n, ALuint *sources ) |
---|
2150 | * |
---|
2151 | * Delete n sources, with sids located in sources[0..n-1]. Only full |
---|
2152 | * deallocations are possible, and if one of sources[0..n-1] is not a |
---|
2153 | * valid source id (or is currently in an active state), and error is |
---|
2154 | * set and no deallocation occurs. |
---|
2155 | * |
---|
2156 | * If n is 0, this is a legal nop. If n < 0, INVALID_VALUE is set |
---|
2157 | * and this is a nop. |
---|
2158 | */ |
---|
2159 | void alDeleteSources( ALsizei n, const ALuint *sources ) { |
---|
2160 | AL_source *src; |
---|
2161 | AL_context *cc; |
---|
2162 | int i; |
---|
2163 | |
---|
2164 | if(n == 0) { |
---|
2165 | /* silently return */ |
---|
2166 | return; |
---|
2167 | } |
---|
2168 | |
---|
2169 | if(n < 0) { |
---|
2170 | _alDebug(ALD_BUFFER, __FILE__, __LINE__, |
---|
2171 | "alDeleteSources: invalid n %d\n", n); |
---|
2172 | |
---|
2173 | _alDCSetError(AL_INVALID_VALUE); |
---|
2174 | return; |
---|
2175 | } |
---|
2176 | |
---|
2177 | _alcDCLockContext(); |
---|
2178 | |
---|
2179 | cc = _alcDCGetContext(); |
---|
2180 | if(cc == NULL) { |
---|
2181 | /* |
---|
2182 | * No current context with which to evaluate the |
---|
2183 | * validity of the sources |
---|
2184 | */ |
---|
2185 | _alcDCUnlockContext(); |
---|
2186 | return; |
---|
2187 | } |
---|
2188 | |
---|
2189 | for(i = 0; i < n; i++) { |
---|
2190 | src = _alDCGetSource( sources[i] ); |
---|
2191 | if(src == NULL) { |
---|
2192 | /* invalid source id, return. */ |
---|
2193 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
2194 | "alDeleteSources: invalid source %d", |
---|
2195 | sources[i]); |
---|
2196 | |
---|
2197 | _alDCSetError( AL_INVALID_NAME ); |
---|
2198 | _alcDCUnlockContext(); |
---|
2199 | |
---|
2200 | return; |
---|
2201 | } |
---|
2202 | |
---|
2203 | if((src->state == AL_PLAYING) || (src->state == AL_PAUSED)) { |
---|
2204 | /* |
---|
2205 | * FIXME: illegal to delete playing source? |
---|
2206 | */ |
---|
2207 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
2208 | "alDeleteSources: tried to delete playing/paused source %d", |
---|
2209 | sources[i]); |
---|
2210 | |
---|
2211 | _alDCSetError(AL_INVALID_OPERATION); |
---|
2212 | _alcDCUnlockContext(); |
---|
2213 | return; |
---|
2214 | } |
---|
2215 | |
---|
2216 | } |
---|
2217 | |
---|
2218 | for(i = 0; i < n; i++) { |
---|
2219 | src = _alDCGetSource(sources[i]); |
---|
2220 | if(src == NULL) { |
---|
2221 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
2222 | "alDeleteSources: invalid source %d", |
---|
2223 | sources[i]); |
---|
2224 | |
---|
2225 | _alDCSetError(AL_INVALID_NAME); |
---|
2226 | continue; |
---|
2227 | } |
---|
2228 | |
---|
2229 | if(src->state == AL_PLAYING) { |
---|
2230 | /* |
---|
2231 | * FIXME: illegal to delete playing source? |
---|
2232 | */ |
---|
2233 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
2234 | "alDeleteSources: tried to del playing source %d", |
---|
2235 | sources[i]); |
---|
2236 | |
---|
2237 | _alDCSetError(AL_INVALID_OPERATION); |
---|
2238 | continue; |
---|
2239 | } |
---|
2240 | |
---|
2241 | spool_dealloc(&cc->source_pool, sources[i], |
---|
2242 | _alDestroySource); |
---|
2243 | } |
---|
2244 | |
---|
2245 | _alcDCUnlockContext(); |
---|
2246 | return; |
---|
2247 | } |
---|
2248 | |
---|
2249 | /* |
---|
2250 | * _alDestroySources |
---|
2251 | * |
---|
2252 | * This destructor is responsible for deallocating source data structures |
---|
2253 | * after openal has finished. |
---|
2254 | */ |
---|
2255 | void _alDestroySources(spool_t *spool) { |
---|
2256 | ALuint i; |
---|
2257 | |
---|
2258 | for( i = 0; i < spool->size; i++ ) { |
---|
2259 | _alDestroyMutex( spool->smutexen[i] ); |
---|
2260 | } |
---|
2261 | |
---|
2262 | |
---|
2263 | spool_free( spool, _alDestroySource ); |
---|
2264 | |
---|
2265 | free( spool->smutexen ); |
---|
2266 | free( stereoptr ); |
---|
2267 | |
---|
2268 | spool->smutexen = NULL; |
---|
2269 | stereoptr = NULL; |
---|
2270 | |
---|
2271 | return; |
---|
2272 | } |
---|
2273 | |
---|
2274 | /* |
---|
2275 | * _alDestroySource |
---|
2276 | * |
---|
2277 | * Deallocates the memory associated with an AL_source, passed as a void * |
---|
2278 | * to this function. |
---|
2279 | * |
---|
2280 | * assumes locked context |
---|
2281 | */ |
---|
2282 | void _alDestroySource( void *srcp ) { |
---|
2283 | AL_source *src = (AL_source *) srcp; |
---|
2284 | ALuint *bidp; |
---|
2285 | int i; |
---|
2286 | |
---|
2287 | /* |
---|
2288 | * if we have a callback buffer, call the |
---|
2289 | * destructor with the "free one source" args |
---|
2290 | */ |
---|
2291 | bidp = _alGetSourceParam(src, AL_BUFFER); |
---|
2292 | if(bidp != NULL) { |
---|
2293 | if(_alBidIsCallback(*bidp) == AL_TRUE) { |
---|
2294 | _alBidCallDestroyCallbackSource(src->sid); |
---|
2295 | } |
---|
2296 | } |
---|
2297 | |
---|
2298 | /* deallocation per source scratch space */ |
---|
2299 | free(src->srcParams.outbuf); |
---|
2300 | src->srcParams.outbuf = NULL; |
---|
2301 | |
---|
2302 | for(i = _alcDCGetNumSpeakers() - 1; i >= 0; i--) { |
---|
2303 | if(src->reverb_buf[i] != NULL) { |
---|
2304 | /* deallocation reverb scratch space */ |
---|
2305 | free( src->reverb_buf[i] ); |
---|
2306 | src->reverb_buf[i] = NULL; |
---|
2307 | } |
---|
2308 | } |
---|
2309 | |
---|
2310 | free( src->bid_queue.queuestate ); |
---|
2311 | free( src->bid_queue.queue ); |
---|
2312 | |
---|
2313 | src->bid_queue.queue = NULL; |
---|
2314 | src->bid_queue.queuestate = NULL; |
---|
2315 | src->bid_queue.size = 0; |
---|
2316 | |
---|
2317 | return; |
---|
2318 | } |
---|
2319 | |
---|
2320 | /* |
---|
2321 | * alSourcePause( ALuint sid ) |
---|
2322 | * |
---|
2323 | * If sid is a valid source name, then if the source associated with it has |
---|
2324 | * the state AL_PLAYING, it will be taken to the state AL_PAUSED. |
---|
2325 | * |
---|
2326 | * If sid is not a valid source name, set AL_INVALID_NAME. |
---|
2327 | */ |
---|
2328 | void alSourcePause( ALuint sid ) { |
---|
2329 | alSourcePausev( 1, &sid ); |
---|
2330 | |
---|
2331 | return; |
---|
2332 | } |
---|
2333 | |
---|
2334 | /* |
---|
2335 | * alSourcePlay( ALuint sid ) |
---|
2336 | * |
---|
2337 | * If sid is a valid source name, then if the source associated with it has |
---|
2338 | * the state AL_INITAL, AL_PAUSED, or AL_STOPPED, it will be taken to the |
---|
2339 | * state AL_PLAYING. |
---|
2340 | * |
---|
2341 | * If sid is not a valid source name, set AL_INVALID_NAME. |
---|
2342 | */ |
---|
2343 | void alSourcePlay( ALuint sid ) { |
---|
2344 | alSourcePlayv( 1, &sid ); |
---|
2345 | |
---|
2346 | return; |
---|
2347 | } |
---|
2348 | |
---|
2349 | /* |
---|
2350 | * alSourceStop( ALuint sid ) |
---|
2351 | * |
---|
2352 | * If sid is a valid source name, then if the source associated with it has |
---|
2353 | * the state AL_PLAYING or AL_PAUSED it will be taken to the state AL_STOPPED. |
---|
2354 | * |
---|
2355 | * If sid is not a valid source name, set AL_INVALID_NAME. |
---|
2356 | */ |
---|
2357 | void alSourceStop( ALuint sid ) { |
---|
2358 | alSourceStopv( 1, &sid ); |
---|
2359 | |
---|
2360 | return; |
---|
2361 | } |
---|
2362 | |
---|
2363 | /* |
---|
2364 | * alSourceRewind( ALuint sid ) |
---|
2365 | * |
---|
2366 | * If sid is a valid source name, then if the source associated with it has |
---|
2367 | * the state AL_PLAYING, AL_PAUSED or AL_STOPPED, it will be taken to the |
---|
2368 | * state AL_INITAL. |
---|
2369 | * |
---|
2370 | * If the source is playing or paused, it will first be stopped. |
---|
2371 | * |
---|
2372 | * If sid is not a valid source name, set AL_INVALID_NAME. |
---|
2373 | */ |
---|
2374 | void alSourceRewind( ALuint sid ) { |
---|
2375 | alSourceRewindv( 1, &sid ); |
---|
2376 | |
---|
2377 | return; |
---|
2378 | } |
---|
2379 | |
---|
2380 | /* |
---|
2381 | * alSourceRewindv( ALsizei ns, ALuint *sids ) |
---|
2382 | * |
---|
2383 | * If ns == 0, legal NOP. |
---|
2384 | * If ns < 0, sets AL_INVALID_VALUE. |
---|
2385 | * |
---|
2386 | * If sids[0..ns-1] are all valid source names, then for each source with |
---|
2387 | * state AL_PLAYING, AL_PAUSED or AL_STOPPER change the state to AL_INITAL. |
---|
2388 | * If sources are playing or paused, they will first be stopped. |
---|
2389 | * |
---|
2390 | * If any member of sids[0..ns-1] is not a valid source name, set |
---|
2391 | * AL_INVALID_NAME. |
---|
2392 | */ |
---|
2393 | void alSourceRewindv( ALsizei ns, const ALuint *sids ) { |
---|
2394 | AL_source *src; |
---|
2395 | ALsizei i; |
---|
2396 | |
---|
2397 | if( ns == 0 ) { |
---|
2398 | /* legal NOP */ |
---|
2399 | return; |
---|
2400 | } |
---|
2401 | |
---|
2402 | if( ns < 0 ) { |
---|
2403 | /* set error */ |
---|
2404 | _alcDCLockContext(); |
---|
2405 | _alDCSetError( AL_INVALID_VALUE ); |
---|
2406 | _alcDCUnlockContext(); |
---|
2407 | |
---|
2408 | return; |
---|
2409 | } |
---|
2410 | |
---|
2411 | SOURCELOCK(); |
---|
2412 | |
---|
2413 | /* validate */ |
---|
2414 | for( i = 0; i < ns; i++ ) { |
---|
2415 | if( _alIsSource( sids[i] ) == AL_FALSE ) { |
---|
2416 | _alDCSetError( AL_INVALID_NAME ); |
---|
2417 | |
---|
2418 | SOURCEUNLOCK(); |
---|
2419 | |
---|
2420 | return; |
---|
2421 | } |
---|
2422 | } |
---|
2423 | |
---|
2424 | _alLockMixBuf(); |
---|
2425 | |
---|
2426 | for( i = 0; i < ns; i++ ) { |
---|
2427 | src = _alDCGetSource( sids[i] ); |
---|
2428 | if(src == NULL) { |
---|
2429 | /* shouldn't happen */ |
---|
2430 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
2431 | "alSourceRewindv: source id %d is invalid", |
---|
2432 | sids[i] ); |
---|
2433 | |
---|
2434 | _alDCSetError( AL_INVALID_NAME ); |
---|
2435 | |
---|
2436 | SOURCEUNLOCK(); |
---|
2437 | return; |
---|
2438 | } |
---|
2439 | |
---|
2440 | |
---|
2441 | switch( src->state ) { |
---|
2442 | case AL_INITIAL: |
---|
2443 | /* legal NOP */ |
---|
2444 | break; |
---|
2445 | case AL_PAUSED: |
---|
2446 | case AL_PLAYING: |
---|
2447 | _alRemoveSourceFromMixer( sids[i] ); |
---|
2448 | case AL_STOPPED: |
---|
2449 | src->state = AL_INITIAL; |
---|
2450 | src->srcParams.soundpos = 0; |
---|
2451 | break; |
---|
2452 | } |
---|
2453 | } |
---|
2454 | |
---|
2455 | _alUnlockMixBuf(); |
---|
2456 | |
---|
2457 | SOURCEUNLOCK(); |
---|
2458 | |
---|
2459 | return; |
---|
2460 | } |
---|
2461 | |
---|
2462 | /* |
---|
2463 | * alSourceStopv( ALsizei ns, ALuint *sids ) |
---|
2464 | * |
---|
2465 | * If ns == 0, legal NOP. |
---|
2466 | * If ns < 0, sets AL_INVALID_VALUE. |
---|
2467 | * |
---|
2468 | * If sids[0..ns-1] are all valid source names, then for each source with |
---|
2469 | * state AL_PLAYING or AL_PAUSED change the state to AL_STOPPED. Otherwise, |
---|
2470 | * set AL_INVALID_NAME. |
---|
2471 | */ |
---|
2472 | void alSourceStopv( ALsizei ns, const ALuint *sids ) { |
---|
2473 | ALsizei i; |
---|
2474 | |
---|
2475 | if( ns == 0 ) { |
---|
2476 | /* legal NOP */ |
---|
2477 | return; |
---|
2478 | } |
---|
2479 | |
---|
2480 | if( ns < 0 ) { |
---|
2481 | /* set error */ |
---|
2482 | _alcDCLockContext(); |
---|
2483 | _alDCSetError( AL_INVALID_VALUE ); |
---|
2484 | _alcDCUnlockContext(); |
---|
2485 | |
---|
2486 | return; |
---|
2487 | } |
---|
2488 | |
---|
2489 | SOURCELOCK(); |
---|
2490 | |
---|
2491 | /* validate */ |
---|
2492 | for( i = 0; i < ns; i++ ) { |
---|
2493 | if( _alIsSource( sids[i] ) == AL_FALSE ) { |
---|
2494 | _alDCSetError( AL_INVALID_NAME ); |
---|
2495 | |
---|
2496 | SOURCEUNLOCK(); |
---|
2497 | |
---|
2498 | return; |
---|
2499 | } |
---|
2500 | } |
---|
2501 | |
---|
2502 | _alLockMixBuf(); |
---|
2503 | |
---|
2504 | for( i = 0; i < ns; i++ ) { |
---|
2505 | _alRemoveSourceFromMixer( sids[i] ); |
---|
2506 | } |
---|
2507 | |
---|
2508 | _alUnlockMixBuf(); |
---|
2509 | |
---|
2510 | SOURCEUNLOCK(); |
---|
2511 | |
---|
2512 | return; |
---|
2513 | } |
---|
2514 | |
---|
2515 | /* |
---|
2516 | * alSourcePlayv( ALsizei ns, ALuint *sids ) |
---|
2517 | * |
---|
2518 | * If ns == 0, legal NOP. |
---|
2519 | * If ns < 0, sets AL_INVALID_VALUE. |
---|
2520 | * |
---|
2521 | * If sids[0..ns-1] are all valid source names, then for each source with |
---|
2522 | * state AL_INITIAL, AL_STOPPED or AL_PAUSED, change the state to AL_PLAYING. |
---|
2523 | * Otherwise, set AL_INVALID_NAME. |
---|
2524 | */ |
---|
2525 | void alSourcePlayv( ALsizei ns, const ALuint *sids ) { |
---|
2526 | ALsizei i; |
---|
2527 | |
---|
2528 | if( ns == 0 ) { |
---|
2529 | /* legal NOP */ |
---|
2530 | return; |
---|
2531 | } |
---|
2532 | |
---|
2533 | if( ns < 0 ) { |
---|
2534 | /* set error */ |
---|
2535 | _alcDCLockContext(); |
---|
2536 | _alDCSetError( AL_INVALID_VALUE ); |
---|
2537 | _alcDCUnlockContext(); |
---|
2538 | |
---|
2539 | return; |
---|
2540 | } |
---|
2541 | |
---|
2542 | SOURCELOCK(); |
---|
2543 | |
---|
2544 | /* validate */ |
---|
2545 | for( i = 0; i < ns; i++ ) { |
---|
2546 | if( _alIsSource( sids[i] ) == AL_FALSE ) { |
---|
2547 | _alDCSetError( AL_INVALID_NAME ); |
---|
2548 | |
---|
2549 | SOURCEUNLOCK(); |
---|
2550 | |
---|
2551 | return; |
---|
2552 | } |
---|
2553 | } |
---|
2554 | |
---|
2555 | _alLockMixBuf(); |
---|
2556 | |
---|
2557 | for(i = 0; i < ns; i++) { |
---|
2558 | _alAddSourceToMixer( sids[i] ); |
---|
2559 | } |
---|
2560 | |
---|
2561 | _alUnlockMixBuf(); |
---|
2562 | |
---|
2563 | SOURCEUNLOCK(); |
---|
2564 | |
---|
2565 | return; |
---|
2566 | } |
---|
2567 | |
---|
2568 | /* |
---|
2569 | * alSourcePausev( ALsizei ns, ALuint *sids ) |
---|
2570 | * |
---|
2571 | * If ns == 0, legal NOP. |
---|
2572 | * If ns < 0, sets AL_INVALID_VALUE. |
---|
2573 | * |
---|
2574 | * If sids[0..ns-1] are all valid source names, then for each source with |
---|
2575 | * state AL_PLAYING, change the state to AL_PAUSED. Otherwise, set |
---|
2576 | * AL_INVALID_NAME. |
---|
2577 | * |
---|
2578 | */ |
---|
2579 | void alSourcePausev( ALsizei ns, const ALuint *sids ) { |
---|
2580 | AL_source *src; |
---|
2581 | ALsizei i; |
---|
2582 | |
---|
2583 | if( ns == 0 ) { |
---|
2584 | /* legal NOP */ |
---|
2585 | return; |
---|
2586 | } |
---|
2587 | |
---|
2588 | if( ns < 0 ) { |
---|
2589 | /* set error */ |
---|
2590 | _alcDCLockContext(); |
---|
2591 | _alDCSetError( AL_INVALID_VALUE ); |
---|
2592 | _alcDCUnlockContext(); |
---|
2593 | |
---|
2594 | return; |
---|
2595 | } |
---|
2596 | |
---|
2597 | SOURCELOCK(); |
---|
2598 | |
---|
2599 | /* validate */ |
---|
2600 | for( i = 0; i < ns; i++ ) { |
---|
2601 | if( _alIsSource( sids[i] ) == AL_FALSE ) { |
---|
2602 | _alDCSetError( AL_INVALID_NAME ); |
---|
2603 | |
---|
2604 | SOURCEUNLOCK(); |
---|
2605 | |
---|
2606 | return; |
---|
2607 | } |
---|
2608 | } |
---|
2609 | |
---|
2610 | /* set */ |
---|
2611 | |
---|
2612 | _alLockMixBuf(); |
---|
2613 | |
---|
2614 | for( i = 0; i < ns; i++ ) { |
---|
2615 | src = _alDCGetSource( sids[i] ); |
---|
2616 | |
---|
2617 | /* |
---|
2618 | * If source is active, set it to be paused. Otherwise, |
---|
2619 | * it's a legal NOP. |
---|
2620 | */ |
---|
2621 | |
---|
2622 | if( src->state == AL_PLAYING ) { |
---|
2623 | src->state = AL_PAUSED; |
---|
2624 | } |
---|
2625 | } |
---|
2626 | |
---|
2627 | _alUnlockMixBuf(); |
---|
2628 | |
---|
2629 | SOURCEUNLOCK(); |
---|
2630 | |
---|
2631 | return; |
---|
2632 | } |
---|
2633 | |
---|
2634 | /* |
---|
2635 | * _alCollapseSource( ALuint cid, ALuint sid, |
---|
2636 | * ALuint nc, ALuint mixbuflen, |
---|
2637 | * ALshort **buffers ); |
---|
2638 | * |
---|
2639 | * Populates the scratch space associated with the source named by sid in the |
---|
2640 | * context named by cid with interleaved data. The data is interleaved using |
---|
2641 | * alternating channels from buffers[0..nc-1]. Each member of the set |
---|
2642 | * buffers[0..nc-1] is an indepedent channel's worth of data, 0..mixbuflen/2 |
---|
2643 | * long bytes long. |
---|
2644 | * |
---|
2645 | * assumes locked context |
---|
2646 | */ |
---|
2647 | void _alCollapseSource( ALuint cid, ALuint sid, |
---|
2648 | ALuint nc, ALuint mixbuflen, |
---|
2649 | ALshort **buffers ) { |
---|
2650 | ALboolean islooping; |
---|
2651 | ALboolean isqueued; |
---|
2652 | AL_source *src; |
---|
2653 | AL_buffer *smp; |
---|
2654 | ALuint len; |
---|
2655 | |
---|
2656 | len = mixbuflen / nc; |
---|
2657 | |
---|
2658 | src = _alGetSource( cid, sid ); |
---|
2659 | if(src == NULL) { |
---|
2660 | _alSetError( cid, AL_INVALID_NAME ); |
---|
2661 | return; |
---|
2662 | } |
---|
2663 | |
---|
2664 | smp = _alGetBufferFromSid( cid, sid ); |
---|
2665 | if(smp == NULL) { |
---|
2666 | _alSetError( cid, AL_INVALID_NAME ); |
---|
2667 | return; |
---|
2668 | } |
---|
2669 | |
---|
2670 | islooping = _alSourceIsLooping(src); |
---|
2671 | isqueued = _alSourceGetPendingBids(src) > 0; |
---|
2672 | |
---|
2673 | if(src->srcParams.outbuf == NULL) { |
---|
2674 | src->srcParams.outbuf = malloc( mixbuflen ); |
---|
2675 | |
---|
2676 | if(src->srcParams.outbuf == NULL) { |
---|
2677 | _alSetError( cid, AL_OUT_OF_MEMORY ); |
---|
2678 | return; |
---|
2679 | } |
---|
2680 | } |
---|
2681 | |
---|
2682 | if(len > (smp->size - src->srcParams.soundpos)) { |
---|
2683 | if( !isqueued && !islooping ) |
---|
2684 | { |
---|
2685 | /* kludge. dc->silence? */ |
---|
2686 | memset(src->srcParams.outbuf, 0, mixbuflen); |
---|
2687 | |
---|
2688 | /* |
---|
2689 | * Non looping source get f_buffer truncated because |
---|
2690 | * they don't (potentially) posses enough data. |
---|
2691 | */ |
---|
2692 | len = (smp->size - src->srcParams.soundpos); |
---|
2693 | } |
---|
2694 | } |
---|
2695 | |
---|
2696 | _alChannelify(src->srcParams.outbuf, buffers, len, nc); |
---|
2697 | |
---|
2698 | return; |
---|
2699 | } |
---|
2700 | |
---|
2701 | /* |
---|
2702 | * _alInitSource( ALuint sid ) |
---|
2703 | * |
---|
2704 | * Initialize an already allocated source. |
---|
2705 | */ |
---|
2706 | static void _alInitSource( ALuint sid ) { |
---|
2707 | AL_source *src; |
---|
2708 | AL_sourcestate *srcstate; |
---|
2709 | int i; |
---|
2710 | |
---|
2711 | src = _alDCGetSource( sid ); |
---|
2712 | if(src == NULL) { |
---|
2713 | /* sid is invalid */ |
---|
2714 | return; |
---|
2715 | } |
---|
2716 | |
---|
2717 | /* set state */ |
---|
2718 | src->state = AL_INITIAL; |
---|
2719 | |
---|
2720 | /* set identifier */ |
---|
2721 | src->sid = sid; |
---|
2722 | |
---|
2723 | /* set data values */ |
---|
2724 | src->srcParams.outbuf = NULL; |
---|
2725 | src->srcParams.soundpos = 0; |
---|
2726 | src->srcParams.new_soundpos = -1; |
---|
2727 | src->srcParams.new_readindex = -1; |
---|
2728 | src->flags = ALS_NONE; |
---|
2729 | src->reverbpos = 0; |
---|
2730 | |
---|
2731 | for(i = 0; i < _ALC_MAX_CHANNELS; i++) { |
---|
2732 | src->reverb_buf[i] = NULL; |
---|
2733 | } |
---|
2734 | |
---|
2735 | /* Initialize the buffer queue */ |
---|
2736 | _alSourceQueueInit( src ); |
---|
2737 | |
---|
2738 | srcstate = _alSourceQueueGetCurrentState( src ); |
---|
2739 | assert( srcstate ); |
---|
2740 | |
---|
2741 | _alSourceStateInit( srcstate ); |
---|
2742 | |
---|
2743 | /* |
---|
2744 | * initialize position, direction, velocity. |
---|
2745 | */ |
---|
2746 | src->position.isset = AL_FALSE; |
---|
2747 | _alSourceGetParamDefault( AL_POSITION, src->position.data ); |
---|
2748 | |
---|
2749 | src->direction.isset = AL_FALSE; |
---|
2750 | _alSourceGetParamDefault( AL_DIRECTION, src->direction.data ); |
---|
2751 | |
---|
2752 | src->velocity.isset = AL_FALSE; |
---|
2753 | _alSourceGetParamDefault( AL_VELOCITY, src->velocity.data ); |
---|
2754 | |
---|
2755 | /* |
---|
2756 | * initialize reverb kludge |
---|
2757 | */ |
---|
2758 | src->reverb_scale = 0.25; |
---|
2759 | src->reverb_delay = 0.00; |
---|
2760 | |
---|
2761 | /* |
---|
2762 | * initialize default mix rate |
---|
2763 | */ |
---|
2764 | src->mixrate = 1.0; |
---|
2765 | |
---|
2766 | /* |
---|
2767 | * initialize gain |
---|
2768 | */ |
---|
2769 | src->gain.isset = AL_FALSE; |
---|
2770 | _alSourceGetParamDefault( AL_GAIN, &src->gain.data ); |
---|
2771 | |
---|
2772 | src->min_gain.isset = AL_FALSE; |
---|
2773 | _alSourceGetParamDefault( AL_MIN_GAIN, &src->min_gain.data ); |
---|
2774 | |
---|
2775 | src->max_gain.isset = AL_FALSE; |
---|
2776 | _alSourceGetParamDefault( AL_MAX_GAIN, &src->max_gain.data ); |
---|
2777 | |
---|
2778 | /* cone initializations */ |
---|
2779 | src->cone_inner_angle.isset = AL_FALSE; |
---|
2780 | _alSourceGetParamDefault( AL_CONE_INNER_ANGLE, |
---|
2781 | &src->cone_inner_angle.data ); |
---|
2782 | |
---|
2783 | src->cone_outer_angle.isset = AL_FALSE; |
---|
2784 | _alSourceGetParamDefault( AL_CONE_OUTER_ANGLE, |
---|
2785 | &src->cone_outer_angle.data ); |
---|
2786 | |
---|
2787 | src->cone_outer_gain.isset = AL_FALSE; |
---|
2788 | _alSourceGetParamDefault( AL_CONE_OUTER_GAIN, |
---|
2789 | &src->cone_outer_gain.data ); |
---|
2790 | |
---|
2791 | /* |
---|
2792 | * initialize source relative, looping, pitch |
---|
2793 | */ |
---|
2794 | |
---|
2795 | src->relative.isset = AL_FALSE; |
---|
2796 | _alSourceGetParamDefault( AL_SOURCE_RELATIVE, &src->relative.data ); |
---|
2797 | |
---|
2798 | src->looping.isset = AL_FALSE; |
---|
2799 | _alSourceGetParamDefault( AL_LOOPING, &src->looping.data ); |
---|
2800 | |
---|
2801 | src->pitch.isset = AL_FALSE; |
---|
2802 | _alSourceGetParamDefault( AL_PITCH, &src->pitch.data ); |
---|
2803 | |
---|
2804 | /* |
---|
2805 | * initialize reference distance, max distance, rolloff factor |
---|
2806 | */ |
---|
2807 | src->reference_distance.isset = AL_FALSE; |
---|
2808 | _alSourceGetParamDefault( AL_REFERENCE_DISTANCE, |
---|
2809 | &src->reference_distance.data ); |
---|
2810 | |
---|
2811 | src->max_distance.isset = AL_FALSE; |
---|
2812 | _alSourceGetParamDefault( AL_MAX_DISTANCE, |
---|
2813 | &src->max_distance.data ); |
---|
2814 | |
---|
2815 | src->rolloff_factor.isset = AL_FALSE; |
---|
2816 | _alSourceGetParamDefault( AL_ROLLOFF_FACTOR, |
---|
2817 | &src->rolloff_factor.data ); |
---|
2818 | |
---|
2819 | return; |
---|
2820 | } |
---|
2821 | |
---|
2822 | /* |
---|
2823 | * _alSourceTranslate( AL_source *src, ALfloat *delta ) |
---|
2824 | * |
---|
2825 | * Translates the source (src) position attribute by delta. Delta is a three |
---|
2826 | * tuple x/y/z. |
---|
2827 | * |
---|
2828 | * assumes locked context |
---|
2829 | */ |
---|
2830 | void _alSourceTranslate( AL_source *src, ALfloat *delta ) { |
---|
2831 | ALfloat *opos; /* original source position */ |
---|
2832 | |
---|
2833 | opos = _alGetSourceParam( src, AL_POSITION ); |
---|
2834 | if( opos == NULL ) { |
---|
2835 | /* no translation possible or needed */ |
---|
2836 | return; |
---|
2837 | } |
---|
2838 | |
---|
2839 | _alVectorTranslate( opos, opos, delta ); |
---|
2840 | |
---|
2841 | return; |
---|
2842 | } |
---|
2843 | |
---|
2844 | /* |
---|
2845 | * srcParam functions |
---|
2846 | * |
---|
2847 | * The use of srcParam settings is this: most filter operations break down |
---|
2848 | * into applying a multiplier or delay to the raw PCM data copied in |
---|
2849 | * SplitSources. Since there operations are cumulative, this can be simplified |
---|
2850 | * by simply collecting the coefficients of the operations and applying them |
---|
2851 | * all at one. So instead of actually performing a gain or delay operation on |
---|
2852 | * the PCM data, the filter can change the srcParam setting, which is applied |
---|
2853 | * in _alSourceParamApply. |
---|
2854 | * |
---|
2855 | */ |
---|
2856 | |
---|
2857 | /* |
---|
2858 | * _alSourceParamReset( AL_source *src ) |
---|
2859 | * |
---|
2860 | * Resets the srcParam settings gain and delay. Does not affect srcParam |
---|
2861 | * settings associated with sound position or the temporary scratch space. |
---|
2862 | * |
---|
2863 | * assumes locked context |
---|
2864 | */ |
---|
2865 | void _alSourceParamReset( AL_source *src ) { |
---|
2866 | AL_listener *lis; |
---|
2867 | int i; |
---|
2868 | |
---|
2869 | lis = _alcDCGetListener(); |
---|
2870 | |
---|
2871 | if(src == NULL) { |
---|
2872 | return; |
---|
2873 | } |
---|
2874 | |
---|
2875 | for(i = 0; i < _ALC_MAX_CHANNELS; i++) { |
---|
2876 | src->srcParams.delay[i] = 0; |
---|
2877 | src->srcParams.gain[i] = 1.0; |
---|
2878 | } |
---|
2879 | |
---|
2880 | return; |
---|
2881 | } |
---|
2882 | |
---|
2883 | /* |
---|
2884 | * _alSourceParamApply( AL_source *src, |
---|
2885 | * ALuint nc, ALuint len, ALshort **buffers) |
---|
2886 | * |
---|
2887 | * Applies the srcParam settings of src to buffers[0..nc-1][0..(len/2)-1]. |
---|
2888 | * |
---|
2889 | * This function should be called before a source is collapsed, in |
---|
2890 | * ApplyFilters. |
---|
2891 | * |
---|
2892 | * assumes locked context |
---|
2893 | * |
---|
2894 | * FIXME: ignores delay |
---|
2895 | */ |
---|
2896 | void _alSourceParamApply( AL_source *src, |
---|
2897 | ALuint nc, ALuint len, ALshort **buffers ) { |
---|
2898 | ALuint sampLen; |
---|
2899 | ALuint i; |
---|
2900 | ALfloat gain; |
---|
2901 | |
---|
2902 | sampLen = len / sizeof(ALshort); /* we pass sample length */ |
---|
2903 | |
---|
2904 | for(i = 0; i < nc; i++) { |
---|
2905 | gain = src->srcParams.gain[i]; |
---|
2906 | |
---|
2907 | if(gain == 1.0) { |
---|
2908 | /* don't floatmul when gain is 1.0 */ |
---|
2909 | continue; |
---|
2910 | } |
---|
2911 | |
---|
2912 | _alFloatMul( buffers[i], gain, sampLen ); |
---|
2913 | } |
---|
2914 | |
---|
2915 | return; |
---|
2916 | } |
---|
2917 | |
---|
2918 | /* |
---|
2919 | * _alSourceGetPendingBids( AL_source *src ) |
---|
2920 | * |
---|
2921 | * Returns the number of buffers queued in the source, not including the |
---|
2922 | * current one ( if any ). |
---|
2923 | */ |
---|
2924 | ALint _alSourceGetPendingBids(AL_source *src) { |
---|
2925 | ALint retval = (src->bid_queue.size - 1) - src->bid_queue.read_index; |
---|
2926 | |
---|
2927 | return retval; |
---|
2928 | } |
---|
2929 | |
---|
2930 | /* |
---|
2931 | * _alSourceShouldIncrement( AL_source *src ) |
---|
2932 | * |
---|
2933 | * Usually, the top-level mixing function _alMixSources handles updating each |
---|
2934 | * source's sound position ( a pointer into its associate buffer's raw PCM |
---|
2935 | * data. ) Some attributes, like pitch, demand a more sophisticated approach |
---|
2936 | * that can only be done by the filter which handles this attribute. |
---|
2937 | * |
---|
2938 | * _alSourceShouldIncrement returns AL_TRUE if the top-level mixing function |
---|
2939 | * should update this sort of state information, and AL_FALSE if it should |
---|
2940 | * leave it to another portion of the library. |
---|
2941 | * |
---|
2942 | * assumes locked context |
---|
2943 | */ |
---|
2944 | ALboolean _alSourceShouldIncrement(AL_source *src) { |
---|
2945 | AL_sourcestate *srcstate; |
---|
2946 | |
---|
2947 | srcstate =_alSourceQueueGetCurrentState(src); |
---|
2948 | |
---|
2949 | if((srcstate == NULL) || (src->flags & ALS_NEEDPITCH)) { |
---|
2950 | return AL_FALSE; |
---|
2951 | } |
---|
2952 | |
---|
2953 | return AL_TRUE; |
---|
2954 | } |
---|
2955 | |
---|
2956 | /* |
---|
2957 | * _alSourceIncrement( AL_source *src, ALuint bytes ) |
---|
2958 | * |
---|
2959 | * Increments the source's (src) offset into its current buffer's PCM data. |
---|
2960 | */ |
---|
2961 | void _alSourceIncrement(AL_source *src, ALuint bytes) { |
---|
2962 | src->srcParams.soundpos += bytes; |
---|
2963 | |
---|
2964 | return; |
---|
2965 | } |
---|
2966 | |
---|
2967 | /* |
---|
2968 | * _alSourceGetBufptr( AL_source *src, AL_buffer *buf, ALuint index ) |
---|
2969 | * |
---|
2970 | * Returns pointer to pcm data for buf, offset by src's soundpos. |
---|
2971 | * |
---|
2972 | * assumes locked context |
---|
2973 | */ |
---|
2974 | void *_alSourceGetBufptr( AL_source *src, AL_buffer *buf, ALuint ind ) { |
---|
2975 | ALbyte *retval; |
---|
2976 | ALuint pos = src->srcParams.soundpos; |
---|
2977 | |
---|
2978 | retval = buf->orig_buffers[ind]; |
---|
2979 | |
---|
2980 | return retval + pos; |
---|
2981 | } |
---|
2982 | |
---|
2983 | /* |
---|
2984 | * _alSourceBytesLeftByChannel( AL_source *src, AL_buffer *samp ) |
---|
2985 | * |
---|
2986 | * Returns the byte length of the amount of data left before this source/samp |
---|
2987 | * pair will either run out of data or be required to wrap. This returns the |
---|
2988 | * byte length of a simple array, with 1 channel's worth of data. |
---|
2989 | */ |
---|
2990 | ALint _alSourceBytesLeft(AL_source *src, AL_buffer *samp) { |
---|
2991 | ALuint nc = samp->num_buffers; |
---|
2992 | |
---|
2993 | return nc * _alSourceBytesLeftByChannel(src, samp); |
---|
2994 | } |
---|
2995 | |
---|
2996 | /* |
---|
2997 | * _alSourceBytesLeft(AL_source *src, AL_buffer *samp) |
---|
2998 | * |
---|
2999 | * Returns the byte length of the amount of data left before this source/samp |
---|
3000 | * pair will either run out of data or be required to wrap. This returns the |
---|
3001 | * byte length of an interleaved array, with periodic repetition equal to the |
---|
3002 | * number of channels in the canonical format. |
---|
3003 | */ |
---|
3004 | ALint _alSourceBytesLeftByChannel(AL_source *src, AL_buffer *samp) { |
---|
3005 | return samp->size - src->srcParams.soundpos; |
---|
3006 | } |
---|
3007 | |
---|
3008 | /* |
---|
3009 | * |
---|
3010 | * _alSourceIsQueue( AL_source * src ) |
---|
3011 | * |
---|
3012 | * Returns AL_TRUE if source (src) has its queue set to AL_TRUE, AL_FALSE otherwise. |
---|
3013 | */ |
---|
3014 | ALboolean _alSourceIsQueue( AL_source * src ) { |
---|
3015 | |
---|
3016 | if ( src->looping.isset == AL_TRUE && |
---|
3017 | src->looping.data == AL_TRUE && |
---|
3018 | src->bid_queue.size > 1 ) return AL_TRUE; |
---|
3019 | |
---|
3020 | return AL_FALSE; |
---|
3021 | } |
---|
3022 | |
---|
3023 | /* |
---|
3024 | * _alSourceIsLooping( AL_source *src ) |
---|
3025 | * |
---|
3026 | * Returns AL_TRUE if the source (src) has its AL_LOOPING attribute set to |
---|
3027 | * AL_TRUE, AL_FALSE otherwise. |
---|
3028 | */ |
---|
3029 | ALboolean _alSourceIsLooping( AL_source *src ) { |
---|
3030 | ALboolean *boo = _alGetSourceParam( src, AL_LOOPING ); |
---|
3031 | |
---|
3032 | if( boo == NULL ) { |
---|
3033 | return AL_FALSE; |
---|
3034 | } |
---|
3035 | |
---|
3036 | return *boo; |
---|
3037 | } |
---|
3038 | |
---|
3039 | /* |
---|
3040 | * FL_alLockSource( UNUSED(const char *fn), |
---|
3041 | * UNUSED(int ln), |
---|
3042 | * ALuint cid, |
---|
3043 | * ALuint sid ) |
---|
3044 | * |
---|
3045 | * Locks source sid at cid. |
---|
3046 | */ |
---|
3047 | ALboolean FL_alLockSource( UNUSED(const char *fn), |
---|
3048 | UNUSED(int ln), |
---|
3049 | ALuint cid, |
---|
3050 | ALuint sid ) { |
---|
3051 | ALint sindex; |
---|
3052 | AL_context *cc; |
---|
3053 | |
---|
3054 | cc = _alcGetContext( cid ); |
---|
3055 | if( cc == NULL ) { |
---|
3056 | return AL_FALSE; |
---|
3057 | } |
---|
3058 | |
---|
3059 | _alLockPrintf("_alLockSource", fn, ln); |
---|
3060 | |
---|
3061 | sindex = spool_sid_to_index( &cc->source_pool, sid ); |
---|
3062 | if( sindex < 0 ) { |
---|
3063 | /* invalid sid */ |
---|
3064 | return AL_FALSE; |
---|
3065 | } |
---|
3066 | |
---|
3067 | if( cc->source_pool.smutexen[sindex] == NULL ) { |
---|
3068 | return AL_FALSE; |
---|
3069 | } |
---|
3070 | |
---|
3071 | _alLockMutex( cc->source_pool.smutexen[sindex] ); |
---|
3072 | |
---|
3073 | return AL_TRUE; |
---|
3074 | } |
---|
3075 | |
---|
3076 | /* |
---|
3077 | * FL_alUnlockSource( UNUSED(const char *fn), |
---|
3078 | * UNUSED(int ln), |
---|
3079 | * ALuint cid, |
---|
3080 | * ALuint sid ) |
---|
3081 | * |
---|
3082 | * Unlocks source mutex for sid at cid. |
---|
3083 | */ |
---|
3084 | ALboolean FL_alUnlockSource( UNUSED(const char *fn), |
---|
3085 | UNUSED(int ln), |
---|
3086 | ALuint cid, |
---|
3087 | ALuint sid ) { |
---|
3088 | ALint sindex; |
---|
3089 | AL_context *cc; |
---|
3090 | |
---|
3091 | cc = _alcGetContext( cid ); |
---|
3092 | if( cc == NULL ) { |
---|
3093 | return AL_FALSE; |
---|
3094 | } |
---|
3095 | |
---|
3096 | _alLockPrintf("_alUnlockSource", fn, ln); |
---|
3097 | |
---|
3098 | sindex = spool_sid_to_index( &cc->source_pool, sid ); |
---|
3099 | if( sindex < 0 ) { |
---|
3100 | /* invalid sid */ |
---|
3101 | return AL_FALSE; |
---|
3102 | } |
---|
3103 | |
---|
3104 | if( cc->source_pool.smutexen[sindex] == NULL ) { |
---|
3105 | return AL_FALSE; |
---|
3106 | } |
---|
3107 | |
---|
3108 | _alUnlockMutex( cc->source_pool.smutexen[sindex] ); |
---|
3109 | |
---|
3110 | return AL_TRUE; |
---|
3111 | } |
---|
3112 | |
---|
3113 | /* |
---|
3114 | * _alGetSourceParam( AL_source *source, ALenum param ) |
---|
3115 | * |
---|
3116 | * Returns a pointer to the source attribute specified by param. If the |
---|
3117 | * attribute has not been set by the application, NULL is returned. |
---|
3118 | * |
---|
3119 | * NOTES: |
---|
3120 | * This returns NULL if the paramater specified by param hasn't |
---|
3121 | * been set, so that the calling function can determine what it |
---|
3122 | * thinks a sensible default should be. Perhaps it would be |
---|
3123 | * best to have a set of default variables here and return their |
---|
3124 | * value when need be? |
---|
3125 | */ |
---|
3126 | void *_alGetSourceParam(AL_source *source, ALenum param ) |
---|
3127 | { |
---|
3128 | if( _alSourceIsParamSet( source, param ) == AL_FALSE ) |
---|
3129 | { |
---|
3130 | if(param == AL_BUFFER) |
---|
3131 | assert(0); |
---|
3132 | |
---|
3133 | return NULL; |
---|
3134 | } |
---|
3135 | |
---|
3136 | switch( param ) |
---|
3137 | { |
---|
3138 | case AL_BUFFER: |
---|
3139 | if( source->bid_queue.read_index >= |
---|
3140 | source->bid_queue.size ) |
---|
3141 | { |
---|
3142 | int size = source->bid_queue.size; |
---|
3143 | |
---|
3144 | /* often the case for size one queues */ |
---|
3145 | return &source->bid_queue.queue[size - 1]; |
---|
3146 | } |
---|
3147 | else |
---|
3148 | if( source->bid_queue.size > 0 ) |
---|
3149 | { |
---|
3150 | int rind = source->bid_queue.read_index; |
---|
3151 | |
---|
3152 | assert(rind < source->bid_queue.size); |
---|
3153 | return &source->bid_queue.queue[rind]; |
---|
3154 | } |
---|
3155 | else |
---|
3156 | { |
---|
3157 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
3158 | "_alGetSourceState: bid_queue.size == %d", |
---|
3159 | source->bid_queue.size); |
---|
3160 | } |
---|
3161 | break; |
---|
3162 | case AL_CONE_INNER_ANGLE: |
---|
3163 | return &source->cone_inner_angle.data; |
---|
3164 | break; |
---|
3165 | case AL_CONE_OUTER_ANGLE: |
---|
3166 | return &source->cone_outer_angle.data; |
---|
3167 | break; |
---|
3168 | case AL_CONE_OUTER_GAIN: |
---|
3169 | return &source->cone_outer_gain.data; |
---|
3170 | break; |
---|
3171 | case AL_DIRECTION: |
---|
3172 | return &source->direction.data; |
---|
3173 | break; |
---|
3174 | case AL_GAIN: |
---|
3175 | case AL_GAIN_LINEAR_LOKI: |
---|
3176 | return &source->gain.data; |
---|
3177 | break; |
---|
3178 | case AL_LOOPING: |
---|
3179 | return &source->looping.data; |
---|
3180 | break; |
---|
3181 | case AL_PITCH: |
---|
3182 | return &source->pitch.data; |
---|
3183 | break; |
---|
3184 | case AL_POSITION: |
---|
3185 | return &source->position.data; |
---|
3186 | break; |
---|
3187 | case AL_SOURCE_RELATIVE: |
---|
3188 | return &source->relative.data; |
---|
3189 | break; |
---|
3190 | case AL_VELOCITY: |
---|
3191 | return &source->velocity.data; |
---|
3192 | break; |
---|
3193 | case AL_MIN_GAIN: |
---|
3194 | return &source->min_gain.data; |
---|
3195 | break; |
---|
3196 | case AL_MAX_GAIN: |
---|
3197 | return &source->max_gain.data; |
---|
3198 | break; |
---|
3199 | case AL_SOURCE_STATE: |
---|
3200 | return &source->state; |
---|
3201 | break; |
---|
3202 | case AL_REFERENCE_DISTANCE: |
---|
3203 | return &source->reference_distance.data; |
---|
3204 | break; |
---|
3205 | case AL_MAX_DISTANCE: |
---|
3206 | return &source->max_distance.data; |
---|
3207 | break; |
---|
3208 | case AL_ROLLOFF_FACTOR: |
---|
3209 | return &source->rolloff_factor.data; |
---|
3210 | break; |
---|
3211 | default: |
---|
3212 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
3213 | "unknown source param 0x%x", param); |
---|
3214 | |
---|
3215 | assert( 0 ); |
---|
3216 | |
---|
3217 | break; |
---|
3218 | } |
---|
3219 | |
---|
3220 | if(param == AL_BUFFER) |
---|
3221 | assert(0); |
---|
3222 | return NULL; |
---|
3223 | } |
---|
3224 | |
---|
3225 | /* |
---|
3226 | * _alSourceIsParamSet( AL_source *source, ALenum param ) |
---|
3227 | * |
---|
3228 | * Returns AL_TRUE if param is set for source, AL_FALSE otherwise. |
---|
3229 | */ |
---|
3230 | ALboolean _alSourceIsParamSet( AL_source *source, ALenum param ) { |
---|
3231 | switch( param ) { |
---|
3232 | case AL_BUFFER: |
---|
3233 | case AL_SOURCE_STATE: |
---|
3234 | return AL_TRUE; |
---|
3235 | case AL_CONE_INNER_ANGLE: |
---|
3236 | return source->cone_inner_angle.isset; |
---|
3237 | case AL_CONE_OUTER_ANGLE: |
---|
3238 | return source->cone_outer_angle.isset; |
---|
3239 | case AL_CONE_OUTER_GAIN: |
---|
3240 | return source->cone_outer_gain.isset; |
---|
3241 | case AL_DIRECTION: |
---|
3242 | return source->direction.isset; |
---|
3243 | case AL_GAIN: |
---|
3244 | case AL_GAIN_LINEAR_LOKI: |
---|
3245 | return source->gain.isset; |
---|
3246 | case AL_LOOPING: |
---|
3247 | return source->looping.isset; |
---|
3248 | case AL_PITCH: |
---|
3249 | return source->pitch.isset; |
---|
3250 | case AL_POSITION: |
---|
3251 | return source->position.isset; |
---|
3252 | case AL_SOURCE_RELATIVE: |
---|
3253 | return source->relative.isset; |
---|
3254 | case AL_VELOCITY: |
---|
3255 | return source->velocity.isset; |
---|
3256 | case AL_MIN_GAIN: |
---|
3257 | return source->min_gain.isset; |
---|
3258 | case AL_MAX_GAIN: |
---|
3259 | return source->max_gain.isset; |
---|
3260 | case AL_REFERENCE_DISTANCE: |
---|
3261 | return source->reference_distance.isset; |
---|
3262 | case AL_MAX_DISTANCE: |
---|
3263 | return source->max_distance.isset; |
---|
3264 | case AL_ROLLOFF_FACTOR: |
---|
3265 | return source->rolloff_factor.isset; |
---|
3266 | default: |
---|
3267 | _alDebug(ALD_SOURCE, __FILE__, __LINE__, |
---|
3268 | "unknown source param 0x%x", param); |
---|
3269 | return AL_FALSE; |
---|
3270 | } |
---|
3271 | } |
---|
3272 | |
---|
3273 | /* |
---|
3274 | * _alSourceGetParamDefault( ALenum param, ALvoid *retref ) |
---|
3275 | * |
---|
3276 | * Sets retref to the default value for param. |
---|
3277 | */ |
---|
3278 | void _alSourceGetParamDefault( ALenum param, ALvoid *retref ) { |
---|
3279 | ALint *ip = retref; |
---|
3280 | ALboolean *bp = retref; |
---|
3281 | ALfloat *fp = retref; |
---|
3282 | Rcvar pref = NULL; |
---|
3283 | |
---|
3284 | switch( param ) { |
---|
3285 | case AL_BUFFER: |
---|
3286 | *ip = 0; |
---|
3287 | break; |
---|
3288 | case AL_CONE_INNER_ANGLE: |
---|
3289 | case AL_CONE_OUTER_ANGLE: |
---|
3290 | *fp = 360.0f; |
---|
3291 | break; |
---|
3292 | case AL_MIN_GAIN: |
---|
3293 | case AL_CONE_OUTER_GAIN: |
---|
3294 | *fp = 0.0f; |
---|
3295 | break; |
---|
3296 | case AL_GAIN: |
---|
3297 | case AL_GAIN_LINEAR_LOKI: |
---|
3298 | case AL_MAX_GAIN: |
---|
3299 | case AL_PITCH: |
---|
3300 | case AL_REFERENCE_DISTANCE: |
---|
3301 | *fp = 1.0f; |
---|
3302 | break; |
---|
3303 | case AL_ROLLOFF_FACTOR: |
---|
3304 | /* |
---|
3305 | * check user preference. If set, use that. |
---|
3306 | * Otherwise, use the default of 1.0f |
---|
3307 | */ |
---|
3308 | pref = rc_lookup( "source-rolloff-factor" ); |
---|
3309 | if( pref != NULL ) { |
---|
3310 | *fp = rc_tofloat( pref ); |
---|
3311 | } else { |
---|
3312 | *fp = 1.0f; |
---|
3313 | } |
---|
3314 | break; |
---|
3315 | case AL_DIRECTION: |
---|
3316 | case AL_POSITION: |
---|
3317 | case AL_VELOCITY: |
---|
3318 | fp[0] = 0.0f; |
---|
3319 | fp[1] = 0.0f; |
---|
3320 | fp[2] = 0.0f; |
---|
3321 | break; |
---|
3322 | case AL_LOOPING: |
---|
3323 | case AL_SOURCE_RELATIVE: |
---|
3324 | *bp = AL_FALSE; |
---|
3325 | break; |
---|
3326 | case AL_MAX_DISTANCE: |
---|
3327 | *fp = FLT_MAX; |
---|
3328 | break; |
---|
3329 | case AL_SOURCE_STATE: |
---|
3330 | default: |
---|
3331 | assert( 0 ); |
---|
3332 | break; |
---|
3333 | } |
---|
3334 | } |
---|
3335 | |
---|
3336 | /* |
---|
3337 | * _alSourceGetNextBuffer( AL_source *src ) |
---|
3338 | * |
---|
3339 | * Returns the next buffer in a queue, or NULL if no next buffer exists. |
---|
3340 | * Assumes locked source. |
---|
3341 | * |
---|
3342 | */ |
---|
3343 | AL_buffer *_alSourceGetNextBuffer( AL_source *src ) |
---|
3344 | { |
---|
3345 | assert( src ); |
---|
3346 | |
---|
3347 | if(src->bid_queue.read_index < src->bid_queue.size - 1) |
---|
3348 | { |
---|
3349 | ALuint ri = src->bid_queue.read_index; |
---|
3350 | ALuint bid = src->bid_queue.queue[ri]; |
---|
3351 | |
---|
3352 | return _alGetBuffer(bid); |
---|
3353 | } |
---|
3354 | |
---|
3355 | return NULL; |
---|
3356 | } |
---|
3357 | |
---|
3358 | /* |
---|
3359 | * _alSourceQueuedBuffers( AL_source *src ) |
---|
3360 | * |
---|
3361 | * Returns the total number of buffers queued for the source, |
---|
3362 | * without regard to the read or write pointer. |
---|
3363 | */ |
---|
3364 | ALint _alSourceQueuedBuffers( AL_source *src ) |
---|
3365 | { |
---|
3366 | assert( src ); |
---|
3367 | |
---|
3368 | return src->bid_queue.size; |
---|
3369 | } |
---|