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annotate src/hpplay.c @ 5697:40fbceabaafd
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| author | Stephen J. Turnbull <stephen@xemacs.org> |
|---|---|
| date | Mon, 24 Dec 2012 03:08:33 +0900 |
| parents | 308d34e9f07d |
| children |
| rev | line source |
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| 428 | 1 /* Copyright (C) 1993 Free Software Foundation, Inc. |
| 2 | |
| 3 This file is part of XEmacs. | |
| 4 | |
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5 XEmacs is free software: you can redistribute it and/or modify it |
| 428 | 6 under the terms of the GNU General Public License as published by the |
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7 Free Software Foundation, either version 3 of the License, or (at your |
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8 option) any later version. |
| 428 | 9 |
| 10 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU General Public License | |
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16 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 17 |
| 18 /* Synched up with: Not in FSF. */ | |
| 19 | |
| 563 | 20 /* This file Mule-ized by Ben Wing, 5-15-01. */ |
| 21 | |
| 428 | 22 |
| 23 /*** | |
| 24 NAME | |
| 25 hpplay | |
| 26 PURPOSE | |
| 27 Play .au sound files on hp9000s700 | |
| 28 BUGS | |
| 29 I have been unable to figure out how to use the volume feature, so no | |
| 444 | 30 attempt has been made to honor the volume arg of play_sound_* |
| 428 | 31 This means that all sounds are played at 100%. |
| 32 The gain parameter can be set by using the hp-play-gain variable. | |
| 33 | |
| 34 NOTES | |
| 35 This file is mostly based on the player program found in the examples | |
| 36 directory of the audio software delivered on our machines. The path I | |
| 37 found it under was /usr/audio/examples/player.c | |
| 38 This file contained no credits and no copyrights. The original fileheader | |
| 39 is given below. | |
| 40 HISTORY | |
| 41 lynbech - Feb 10, 1993: Created. | |
| 42 ***/ | |
| 43 | |
| 44 /* ORIGINAL FILEHEADER: | |
| 45 * player - command-line audio file player | |
| 46 * Aug. 28 1991 | |
| 47 * by three unknown, unsung audio programmers | |
| 48 * (well, only two are unsung) | |
| 49 */ | |
| 50 | |
| 51 #include <config.h> | |
| 52 #include "lisp.h" | |
| 53 | |
| 563 | 54 #include "sound.h" |
| 442 | 55 |
| 428 | 56 #include <Alib.h> |
| 57 #include <CUlib.h> | |
| 58 | |
| 442 | 59 |
| 428 | 60 Lisp_Object Vhp_play_server; |
| 61 Lisp_Object Vhp_play_speaker; | |
| 458 | 62 Fixnum hp_play_gain; |
| 428 | 63 |
| 64 /* Functions */ | |
| 65 | |
| 66 /* error handling */ | |
| 563 | 67 void |
| 2367 | 68 player_error_internal (Audio * audio, Ascbyte * text, long errorCode) |
| 428 | 69 { |
| 563 | 70 Extbyte errorbuff[132]; |
| 867 | 71 Ibyte *interr; |
| 428 | 72 |
| 563 | 73 AGetErrorText (audio, errorCode, errorbuff, 131); |
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74 interr = EXTERNAL_TO_ITEXT (errorbuf, Qerror_message_encoding); |
| 563 | 75 |
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76 signal_error (Qsound_error, text, build_istring (interr)); |
| 428 | 77 } |
| 78 | |
| 563 | 79 long |
| 80 myHandler( Audio * audio, AErrorEvent * err_event) | |
| 428 | 81 { |
| 82 player_error_internal(audio, "Internal sound error", err_event->error_code); | |
| 83 return 1; /* Must return something, was orig. an exit */ | |
| 84 } | |
| 85 | |
| 86 /* Playing */ | |
| 87 void | |
| 2286 | 88 play_bucket_internal( Audio *audio, SBucket *pSBucket, long UNUSED (volume)) |
| 428 | 89 { |
| 563 | 90 SBPlayParams playParams; |
| 91 AGainEntry gainEntry; | |
| 92 ATransID xid; | |
| 93 long status; | |
| 94 | |
| 95 playParams.priority = APriorityNormal; /* normal priority */ | |
| 428 | 96 |
| 563 | 97 /* |
| 98 * We can't signal an error, because all h*ll would break loose if | |
| 99 * we did. | |
| 100 */ | |
| 101 if (EQ (Vhp_play_speaker, Qexternal)) | |
| 102 gainEntry.u.o.out_dst = AODTMonoJack; | |
| 103 else | |
| 104 gainEntry.u.o.out_dst = AODTMonoIntSpeaker; | |
| 428 | 105 |
| 563 | 106 gainEntry.u.o.out_ch = AOCTMono; |
| 107 gainEntry.gain = AUnityGain; | |
| 108 playParams.gain_matrix.type = AGMTOutput; /* gain matrix */ | |
| 109 playParams.gain_matrix.num_entries = 1; | |
| 110 playParams.gain_matrix.gain_entries = &gainEntry; | |
| 111 playParams.play_volume = hp_play_gain; /* play volume */ | |
| 112 playParams.pause_first = False; /* don't pause */ | |
| 113 playParams.start_offset.type = ATTSamples; /* start offset 0 */ | |
| 114 playParams.start_offset.u.samples = 0; | |
| 115 playParams.duration.type = ATTFullLength; /* play entire sample */ | |
| 116 playParams.loop_count = 1; /* play sample just once */ | |
| 117 playParams.previous_transaction = 0; /* no linked transaction */ | |
| 118 playParams.event_mask = 0; /* don't solicit any events */ | |
| 428 | 119 |
| 563 | 120 /* |
| 121 * play the sound bucket | |
| 122 */ | |
| 123 xid = APlaySBucket( audio, pSBucket, &playParams, NULL ); | |
| 428 | 124 |
| 563 | 125 /* |
| 126 * set close mode to prevent playback from stopping | |
| 127 * when we close audio connection | |
| 128 */ | |
| 129 ASetCloseDownMode( audio, AKeepTransactions, &status ); | |
| 428 | 130 |
| 563 | 131 /* |
| 132 * That's all, folks! | |
| 133 * Always destroy bucket and close connection. | |
| 134 */ | |
| 135 ADestroySBucket( audio, pSBucket, &status ); | |
| 136 ACloseAudio( audio, &status ); | |
| 428 | 137 } |
| 138 | |
| 139 void | |
| 563 | 140 play_sound_file (Extbyte * sound_file, int volume) |
| 428 | 141 { |
| 563 | 142 sbucket *pSBucket; |
| 143 Audio *audio; | |
| 144 long status; | |
| 145 AErrorHandler prevHandler; /* pointer to previous handler */ | |
| 146 Extbyte *server; | |
| 428 | 147 |
| 563 | 148 if (STRINGP (Vhp_play_server)) |
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149 server = LISP_STRING_TO_EXTERNAL (Vhp_play_server, |
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150 Qunix_host_name_encoding); |
| 563 | 151 else |
| 428 | 152 server = ""; |
| 153 | |
| 563 | 154 /* |
| 155 * open audio connection | |
| 156 */ | |
| 157 audio = AOpenAudio( server, &status ); | |
| 158 if( status ) | |
| 159 { | |
| 160 player_error_internal( audio, "Open audio failed", status ); | |
| 428 | 161 } |
| 162 | |
| 563 | 163 /* replace default error handler */ |
| 164 prevHandler = ASetErrorHandler(myHandler); | |
| 428 | 165 |
| 563 | 166 /* |
| 167 * Load the audio file into a sound bucket | |
| 168 */ | |
| 428 | 169 |
| 563 | 170 pSBucket = ALoadAFile( audio, sound_file, AFFUnknown, 0, NULL, NULL ); |
| 428 | 171 |
| 563 | 172 /* |
| 173 * Play the bucket | |
| 174 */ | |
| 428 | 175 |
| 563 | 176 play_bucket_internal(audio, pSBucket, volume); |
| 428 | 177 |
| 563 | 178 ASetErrorHandler(prevHandler); |
| 428 | 179 } |
| 180 | |
| 181 | |
| 442 | 182 int |
| 2367 | 183 play_sound_data (Binbyte * data, int UNUSED (length), int volume) |
| 428 | 184 { |
| 563 | 185 SBucket *pSBucket; |
| 186 Audio *audio; | |
| 187 AErrorHandler prevHandler; | |
| 188 SunHeader *header; | |
| 189 long status; | |
| 190 Extbyte *server; | |
| 191 int result; | |
| 428 | 192 |
| 563 | 193 /* #### Finish this to return an error code. |
| 194 This function signal a lisp error. How consistent with the rest. | |
| 195 What if this function is needed in doing the beep for the error? | |
| 442 | 196 |
| 563 | 197 Apparently the author of this didn't read the comment in |
| 198 Fplay_sound. | |
| 199 */ | |
| 442 | 200 |
| 201 | |
| 563 | 202 if (STRINGP (Vhp_play_server)) |
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203 server = LISP_STRING_TO_EXTERNAL (Vhp_play_server, |
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204 Qunix_host_name_encoding); |
| 563 | 205 else |
| 428 | 206 server = ""; |
| 207 | |
| 563 | 208 /* open audio connection */ |
| 209 audio = AOpenAudio( server, &status ); | |
| 210 if(status) | |
| 211 { | |
| 212 player_error_internal( audio, "Open audio failed", status ); | |
| 428 | 213 } |
| 214 | |
| 563 | 215 /* replace default error handler */ |
| 216 prevHandler = ASetErrorHandler (myHandler); | |
| 428 | 217 |
| 563 | 218 /* Create sound bucket */ |
| 219 header = (SunHeader *) data; | |
| 428 | 220 |
| 563 | 221 pSBucket = ACreateSBucket(audio, NULL, NULL, &status); |
| 222 if (status) | |
| 223 player_error_internal( audio, "Bucket creation failed", status ); | |
| 428 | 224 |
| 2367 | 225 APutSBucketData(audio, pSBucket, 0, (CBinbyte *) (data + header->header_size), header->data_length, &status); |
| 428 | 226 |
| 563 | 227 if (status) |
| 228 player_error_internal( audio, "Audio data copy failed", status ); | |
| 428 | 229 |
| 563 | 230 /* Play sound */ |
| 231 play_bucket_internal(audio, pSBucket, volume); | |
| 428 | 232 |
| 563 | 233 ASetErrorHandler(prevHandler); |
| 234 if (status) | |
| 235 player_error_internal( audio, "Audio data copy failed", status ); | |
| 442 | 236 |
| 563 | 237 return 1; |
| 428 | 238 } |
| 239 | |
| 240 void | |
| 241 vars_of_hpplay (void) | |
| 242 { | |
| 243 DEFVAR_LISP ("hp-play-server", &Vhp_play_server /* | |
| 244 A string, determining which server to play sound at. | |
| 245 Note that this is specific to the HP sound implementation, and you should | |
| 246 not make your functions depend on it. | |
| 247 */ ); | |
| 248 | |
| 249 Vhp_play_server = Qnil; | |
| 250 | |
| 251 DEFVAR_LISP ("hp-play-speaker", &Vhp_play_speaker /* | |
| 252 If this variable is the symbol `external', sound is played externally. | |
| 253 If the environment variable SPEAKER is set, that value is used for | |
| 254 initializing this variable. | |
| 255 Note that this is specific to the HP sound implementation, and you should | |
| 256 not make your functions depend on it. | |
| 257 */ ); | |
| 258 | |
| 259 Vhp_play_speaker = intern ("internal"); | |
| 260 | |
| 563 | 261 DEFVAR_INT ("hp-play-gain", &hp_play_gain /* |
| 428 | 262 Global gain value for playing sounds. |
| 263 Default value is AUnityGain which means keep level. | |
| 264 Please refer to the HP documentation, for instance in | |
| 265 `Using the Audio Application Program Interface', for details on how to | |
| 266 interpret this variable. | |
| 267 Note that this is specific to the HP sound implementation, and you should | |
| 268 not make your functions depend on it. | |
| 269 */ ); | |
| 270 | |
| 271 hp_play_gain = AUnityGain; | |
| 272 } | |
| 273 | |
| 274 void | |
| 275 init_hpplay (void) | |
| 276 { | |
| 771 | 277 if (egetenv ("SPEAKER")) |
| 278 Vhp_play_speaker = intern (egetenv ("SPEAKER")); | |
| 428 | 279 } |