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428
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1 /* Copyright (C) 1993 Free Software Foundation, Inc.
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2
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3 This file is part of XEmacs.
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4
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5 XEmacs is free software; you can redistribute it and/or modify it
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6 under the terms of the GNU General Public License as published by the
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7 Free Software Foundation; either version 2, or (at your option) any
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8 later version.
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9
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10 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with XEmacs; see the file COPYING. If not, write to
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17 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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18 Boston, MA 02111-1307, USA. */
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19
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20 /* Synched up with: Not in FSF. */
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21
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22
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23 /***
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24 NAME
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25 hpplay
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26 PURPOSE
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27 Play .au sound files on hp9000s700
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28 BUGS
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29 I have been unable to figure out how to use the volume feature, so no
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30 attempts has been made to honor the volume arg of play_sound_*
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31 This means that all sounds are played at 100%.
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32 The gain parameter can be set by using the hp-play-gain variable.
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33
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34 NOTES
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35 This file is mostly based on the player program found in the examples
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36 directory of the audio software delivered on our machines. The path I
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37 found it under was /usr/audio/examples/player.c
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38 This file contained no credits and no copyrights. The original fileheader
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39 is given below.
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40 HISTORY
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41 lynbech - Feb 10, 1993: Created.
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42 ***/
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43
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44 /* ORIGINAL FILEHEADER:
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45 * player - command-line audio file player
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46 * Aug. 28 1991
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47 * by three unknown, unsung audio programmers
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48 * (well, only two are unsung)
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49 */
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50
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51 #include <config.h>
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52 #include "lisp.h"
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53
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54 #include <stdlib.h>
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55 #include <stdio.h>
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56 #ifdef HPUX10
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57 #include <Alib.h>
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58 #include <CUlib.h>
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59 #else /* !HPUX 10 */
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60 #include <audio/Alib.h>
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61 #include <audio/CUlib.h>
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62 #endif /* !HPUX 10 */
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63
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64 Lisp_Object Vhp_play_server;
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65 Lisp_Object Vhp_play_speaker;
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66 int hp_play_gain;
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67
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68 /* Functions */
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69
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70 /* error handling */
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71 void player_error_internal(
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72 Audio * audio,
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73 char * text,
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74 long errorCode
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75 )
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76 {
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77 char errorbuff[132],buf[256];
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78
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79 AGetErrorText(audio, errorCode, errorbuff, 131);
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80 sprintf(buf,"%s: %s\n",text,errorbuff);
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81 error(buf);
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82 }
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83
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84 long myHandler(audio, err_event)
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85 Audio * audio;
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86 AErrorEvent * err_event;
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87 {
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88 player_error_internal(audio, "Internal sound error", err_event->error_code);
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89 return 1; /* Must return something, was orig. an exit */
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90 }
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91
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92 /* Playing */
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93 void
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94 play_bucket_internal(audio, pSBucket, volume)
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95 Audio *audio;
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96 SBucket *pSBucket;
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97 long volume;
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98 {
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99 SBPlayParams playParams;
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100 AGainEntry gainEntry;
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101 ATransID xid;
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102 long status;
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103 char * speaker;
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104
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105 playParams.priority = APriorityNormal; /* normal priority */
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106
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107 /*
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108 * We can't signal an error, because all h*ll would break loose if
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109 * we did.
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110 */
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111 if (SYMBOLP (Vhp_play_speaker))
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112 {
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113 speaker = (char *) (string_data (XSYMBOL (Vhp_play_speaker)->name));
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114
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115 /*
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116 * setup the playback parameters
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117 */
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118
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119 /* speaker selection */
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120 if ( strcmp(speaker,"external") == 0 ) {
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121 gainEntry.u.o.out_dst = AODTMonoJack;
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122 } else {
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123 gainEntry.u.o.out_dst = AODTMonoIntSpeaker;
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124 }
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125 }
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126 else
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127 {
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128 /*
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129 * Quietly revert to the internal speaker
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130 */
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131 gainEntry.u.o.out_dst = AODTMonoIntSpeaker;
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132 }
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133
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134 gainEntry.u.o.out_ch = AOCTMono;
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135 gainEntry.gain = AUnityGain;
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136 playParams.gain_matrix.type = AGMTOutput; /* gain matrix */
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137 playParams.gain_matrix.num_entries = 1;
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138 playParams.gain_matrix.gain_entries = &gainEntry;
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139 playParams.play_volume = hp_play_gain; /* play volume */
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140 playParams.pause_first = False; /* don't pause */
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141 playParams.start_offset.type = ATTSamples; /* start offset 0 */
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142 playParams.start_offset.u.samples = 0;
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143 playParams.duration.type = ATTFullLength; /* play entire sample */
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144 playParams.loop_count = 1; /* play sample just once */
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145 playParams.previous_transaction = 0; /* no linked transaction */
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146 playParams.event_mask = 0; /* don't solicit any events */
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147
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148 /*
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149 * play the sound bucket
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150 */
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151 xid = APlaySBucket( audio, pSBucket, &playParams, NULL );
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152
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153 /*
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154 * set close mode to prevent playback from stopping
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155 * when we close audio connection
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156 */
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157 ASetCloseDownMode( audio, AKeepTransactions, &status );
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158
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159 /*
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160 * That's all, folks!
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161 * Always destroy bucket and close connection.
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162 */
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163 ADestroySBucket( audio, pSBucket, &status );
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164 ACloseAudio( audio, &status );
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165 }
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166
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167 void
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168 play_sound_file (sound_file, volume)
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169 char * sound_file;
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170 int volume;
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171 {
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172 SBucket *pSBucket;
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173 Audio *audio;
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174 long status;
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175 AErrorHandler prevHandler; /* pointer to previous handler */
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176 char *server;
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177
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178 if (STRINGP(Vhp_play_server))
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179 server = (char *) XSTRING_DATA (Vhp_play_server);
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180 server = "";
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181
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182 /*
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183 * open audio connection
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184 */
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185 audio = AOpenAudio( server, &status );
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186 if( status ) {
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187 player_error_internal( audio, "Open audio failed", status );
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188 }
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189
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190 /* replace default error handler */
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191 prevHandler = ASetErrorHandler(myHandler);
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192
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193 /*
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194 * Load the audio file into a sound bucket
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195 */
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196
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197 pSBucket = ALoadAFile( audio, sound_file, AFFUnknown, 0, NULL, NULL );
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198
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199 /*
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200 * Play the bucket
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201 */
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202
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203 play_bucket_internal(audio, pSBucket, volume);
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204
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205 ASetErrorHandler(prevHandler);
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206 }
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207
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208
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209 void
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210 play_sound_data (data, length, volume)
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211 unsigned char * data;
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212 int length;
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213 int volume;
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214 {
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215 SBucket *pSBucket;
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216 Audio *audio;
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217 AErrorHandler prevHandler;
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218 SunHeader *header;
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219 long status;
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220 char *server;
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221
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222 if (STRINGP (Vhp_play_server))
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223 server = (char *) XSTRING_DATA (Vhp_play_server);
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224 server = "";
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225
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226 /* open audio connection */
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227 audio = AOpenAudio( server, &status );
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228 if( status ) {
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229 player_error_internal( audio, "Open audio failed", status );
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230 }
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231
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232 /* replace default error handler */
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233 prevHandler = ASetErrorHandler (myHandler);
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234
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235 /* Create sound bucket */
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236 header = (SunHeader *) data;
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237
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238 pSBucket = ACreateSBucket(audio, NULL, NULL, &status);
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239 if (status)
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240 player_error_internal( audio, "Bucket creation failed", status );
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241
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242 APutSBucketData(audio, pSBucket, 0, (char *) (data + header->header_size), header->data_length, &status);
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243
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244 if (status)
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245 player_error_internal( audio, "Audio data copy failed", status );
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246
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247 /* Play sound */
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248 play_bucket_internal(audio, pSBucket, volume);
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249
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250 ASetErrorHandler(prevHandler);
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251 if (status)
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252 player_error_internal( audio, "Audio data copy failed", status );
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253 }
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254
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255 void
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256 vars_of_hpplay (void)
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257 {
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258 DEFVAR_LISP ("hp-play-server", &Vhp_play_server /*
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259 A string, determining which server to play sound at.
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260 Note that this is specific to the HP sound implementation, and you should
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261 not make your functions depend on it.
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262 */ );
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263
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264 Vhp_play_server = Qnil;
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265
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266 DEFVAR_LISP ("hp-play-speaker", &Vhp_play_speaker /*
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267 If this variable is the symbol `external', sound is played externally.
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268 If the environment variable SPEAKER is set, that value is used for
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269 initializing this variable.
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270 Note that this is specific to the HP sound implementation, and you should
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271 not make your functions depend on it.
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272 */ );
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273
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274 Vhp_play_speaker = intern ("internal");
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275
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276 DEFVAR_INT("hp-play-gain", &hp_play_gain /*
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277 Global gain value for playing sounds.
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278 Default value is AUnityGain which means keep level.
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279 Please refer to the HP documentation, for instance in
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280 `Using the Audio Application Program Interface', for details on how to
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281 interpret this variable.
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282 Note that this is specific to the HP sound implementation, and you should
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283 not make your functions depend on it.
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284 */ );
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285
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286 hp_play_gain = AUnityGain;
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287 }
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288
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289 void
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290 init_hpplay (void)
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291 {
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292 if (getenv ("SPEAKER"))
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293 Vhp_play_speaker = intern (getenv ("SPEAKER"));
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294 }
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