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428
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1 /* play.c - play a sound file on the speaker
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2 **
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3 ** Copyright (C) 1989 by Jef Poskanzer.
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4 **
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5 ** Modified 24-May-91 by Jamie Zawinski (for Lucid Emacs).
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6 ** Modified 17-Dec-92 by Jamie Zawinski (largely rewritten for SunOS 4.1.3).
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7 **
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8 ** Permission to use, copy, modify, and distribute this software and its
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9 ** documentation for any purpose and without fee is hereby granted, provided
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10 ** that the above copyright notice appear in all copies and that both that
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11 ** copyright notice and this permission notice appear in supporting
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12 ** documentation. This software is provided "as is" without express or
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13 ** implied warranty.
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14 */
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15
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16 /* Synched up with: Not in FSF. */
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17
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563
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18 /* This file Mule-ized by Ben Wing, 5-15-01. */
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428
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19
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563
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20 #include <config.h>
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21 #include "lisp.h"
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22 #include "sound.h"
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428
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23
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563
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24 #include "sysdep.h"
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25 #include "sysfile.h"
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26 #include "syssignal.h"
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428
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27
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28 #include <multimedia/libaudio.h>
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29 #include <multimedia/audio_device.h>
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30
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31 static SIGTYPE (*sighup_handler) (int sig);
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32 static SIGTYPE (*sigint_handler) (int sig);
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33 static SIGTYPE sighandler (int sig);
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34
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35 static int audio_fd;
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36
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37 #define audio_open() open ("/dev/audio", (O_WRONLY | O_NONBLOCK), 0)
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38
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442
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39 static int initialized_device_p;
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428
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40 static int reset_volume_p, reset_device_p;
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41 static double old_volume;
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42 static Audio_hdr dev_hdr;
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43
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44 static int
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2367
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45 init_device (int volume, Binbyte *data, int fd,
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428
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46 unsigned int *header_length)
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47 {
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48 Audio_hdr file_hdr;
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49
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50 reset_volume_p = 0;
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51 reset_device_p = 0;
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52
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2500
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53 if (data && fd) ABORT (); /* one or the other */
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428
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54
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55 if (AUDIO_SUCCESS != audio_get_play_config (audio_fd, &dev_hdr))
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56 {
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563
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57 sound_perror ("Not a valid audio device");
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428
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58 return 1;
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59 }
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60
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61 if (AUDIO_SUCCESS != (data
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62 ? audio_decode_filehdr (data, &file_hdr, header_length)
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63 : audio_read_filehdr (fd, &file_hdr, 0, 0)))
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64 {
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65 if (data)
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563
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66 sound_perror ("invalid audio data");
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428
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67 else
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563
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68 sound_perror ("invalid audio file");
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428
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69 return 1;
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70 }
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71
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72 audio_flush_play (audio_fd);
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73
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442
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74 if (!initialized_device_p || (0 != audio_cmp_hdr (&dev_hdr, &file_hdr)))
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428
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75 {
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76 Audio_hdr new_hdr;
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77 new_hdr = file_hdr;
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78 reset_device_p = 1;
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442
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79 initialized_device_p = 1;
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428
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80 if (AUDIO_SUCCESS != audio_set_play_config (audio_fd, &new_hdr))
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81 {
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563
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82 Extbyte buf1 [100], buf2 [100], buf3 [250];
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428
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83 audio_enc_to_str (&file_hdr, buf1);
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84 audio_enc_to_str (&new_hdr, buf2);
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85 sprintf (buf3, "wanted %s, got %s", buf1, buf2);
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563
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86 sound_warn (buf3);
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428
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87 return 1;
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88 }
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89 }
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90
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91 if (volume < 0 || volume > 100)
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92 {
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563
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93 Extbyte buf [255];
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428
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94 sprintf (buf, "volume must be between 0 and 100 (not %d)", volume);
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563
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95 sound_warn (buf);
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428
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96 return 1;
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97 }
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98 {
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99 /* set the volume; scale it to 0.0 - 1.0 */
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100 double V = (volume / 100.0);
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101 audio_get_play_gain (audio_fd, &old_volume);
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102 reset_volume_p = 1;
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103 audio_set_play_gain (audio_fd, &V);
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104 }
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105
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106 return 0;
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107 }
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108
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109
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110 static void
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111 reset_device (int wait_p)
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112 {
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113 if (wait_p)
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114 audio_drain (audio_fd, 1);
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115 else
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116 audio_flush_play (audio_fd);
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117 if (reset_device_p)
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118 audio_set_play_config (audio_fd, &dev_hdr);
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119 if (reset_volume_p)
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120 audio_set_play_gain (audio_fd, &old_volume);
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121 }
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122
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123
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124 void
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563
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125 play_sound_file (Extbyte *sound_file, int volume)
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428
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126 {
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127 int rrtn, wrtn;
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2367
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128 Binbyte buf [255];
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428
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129 int file_fd;
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130
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131 audio_fd = audio_open ();
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132
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133 if (audio_fd < 0)
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134 {
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563
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135 sound_perror ("open /dev/audio");
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428
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136 return;
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137 }
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138
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139 /* where to find the proto for signal()... */
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613
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140 sighup_handler = (SIGTYPE (*) (int)) EMACS_SIGNAL (SIGHUP, sighandler);
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141 sigint_handler = (SIGTYPE (*) (int)) EMACS_SIGNAL (SIGINT, sighandler);
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428
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142
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143 file_fd = open (sound_file, O_RDONLY, 0);
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144 if (file_fd < 0)
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145 {
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563
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146 sound_perror (sound_file);
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428
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147 goto END_OF_PLAY;
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148 }
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149
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2367
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150 if (init_device (volume, (Binbyte *) 0, file_fd, (unsigned int *) 0))
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428
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151 goto END_OF_PLAY;
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152
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153 while (1)
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154 {
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2367
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155 rrtn = read (file_fd, (CBinbyte *) buf, sizeof (buf));
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428
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156 if (rrtn < 0)
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157 {
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563
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158 sound_perror ("read");
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428
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159 goto END_OF_PLAY;
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160 }
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161 if (rrtn == 0)
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162 break;
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163
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164 while (1)
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165 {
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2367
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166 wrtn = write (audio_fd, (CBinbyte *) buf, rrtn);
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428
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167 if (wrtn < 0)
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168 {
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563
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169 sound_perror ("write");
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428
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170 goto END_OF_PLAY;
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171 }
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172 if (wrtn != 0)
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173 break;
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174
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175 if (AUDIO_ERR_INTERRUPTED == audio_drain (audio_fd, 1))
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176 goto END_OF_PLAY;
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177 }
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178 if (wrtn != rrtn)
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179 {
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563
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180 Extbyte warn_buf [255];
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428
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181 sprintf (warn_buf, "play: rrtn = %d, wrtn = %d", rrtn, wrtn);
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563
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182 sound_warn (warn_buf);
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428
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183 goto END_OF_PLAY;
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184 }
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185 }
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186
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187 END_OF_PLAY:
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188
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189 if (file_fd > 0)
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190 close (file_fd);
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191
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192 if (audio_fd > 0)
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193 {
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194 reset_device (1);
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195 close (audio_fd);
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196 }
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197
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613
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198 EMACS_SIGNAL (SIGHUP, sighup_handler);
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199 EMACS_SIGNAL (SIGINT, sigint_handler);
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428
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200 }
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201
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202
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442
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203 int
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2367
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204 play_sound_data (Binbyte *data, int length, int volume)
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428
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205 {
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206 int wrtn, start = 0;
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207 unsigned int ilen;
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442
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208 int result = 0;
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428
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209
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210 audio_fd = -1;
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211
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442
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212 if (length == 0) return 0;
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428
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213
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214 /* this is just to get a better error message */
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2367
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215 if (strncmp (".snd\0", (CBinbyte *) data, 4))
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428
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216 {
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563
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217 sound_warn ("Not valid audio data (bad magic number)");
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428
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218 goto END_OF_PLAY;
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219 }
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220 if (length <= sizeof (Audio_hdr))
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221 {
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563
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222 sound_warn ("Not valid audio data (too short)");
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428
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223 goto END_OF_PLAY;
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224 }
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225
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226 audio_fd = audio_open ();
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227 if (audio_fd < 0)
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442
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228 return 0;
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428
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229
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230 /* where to find the proto for signal()... */
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613
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231 sighup_handler = (SIGTYPE (*) (int)) EMACS_SIGNAL (SIGHUP, sighandler);
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232 sigint_handler = (SIGTYPE (*) (int)) EMACS_SIGNAL (SIGINT, sighandler);
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428
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233
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234 if (init_device (volume, data, 0, &ilen))
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235 goto END_OF_PLAY;
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236
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237 data += (ilen<<2);
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238 length -= (ilen<<2);
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239 if (length <= 1)
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240 goto END_OF_PLAY;
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241
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242 while (1)
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243 {
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2367
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244 wrtn = write (audio_fd, (CBinbyte *) (data+start), length-start);
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428
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245 if (wrtn < 0)
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246 {
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563
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247 sound_perror ("write");
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428
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248 goto END_OF_PLAY;
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249 }
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250 if (wrtn != 0)
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251 {
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252 start += wrtn;
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253 break;
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254 }
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255 if (AUDIO_ERR_INTERRUPTED == audio_drain (audio_fd, 1))
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256 goto END_OF_PLAY;
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257 }
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258 if (wrtn != length)
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259 {
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563
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260 Extbyte buf [255];
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428
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261 sprintf (buf, "play: rrtn = %d, wrtn = %d", length, wrtn);
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563
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262 sound_warn (buf);
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428
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263 goto END_OF_PLAY;
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264 }
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265
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442
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266 result = 1;
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267
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428
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268 END_OF_PLAY:
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269
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270 if (audio_fd > 0)
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271 {
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272 reset_device (1);
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273 close (audio_fd);
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274 }
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275
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613
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276 EMACS_SIGNAL (SIGHUP, sighup_handler);
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277 EMACS_SIGNAL (SIGINT, sigint_handler);
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442
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278
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279 return result;
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428
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280 }
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281
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282 /* #### sigcontext doesn't exist in Solaris. This should be updated
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283 to be correct for Solaris. */
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442
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284 static SIGTYPE
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428
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285 sighandler (int sig)
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286 {
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287 if (audio_fd > 0)
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288 {
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289 reset_device (0);
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290 close (audio_fd);
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291 }
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292 if (sig == SIGHUP && sighup_handler)
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293 sighup_handler (sig);
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294 else if (sig == SIGINT && sigint_handler)
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295 sigint_handler (sig);
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296 else
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297 exit (1);
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298 }
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