static int old_volume;
static void sigterm_handler(int signal) {
- ioctl(dsp_fd, SNDCTL_DSP_RESET, 0);
- if (mixer_fd >= 0)
- ioctl(mixer_fd, SOUND_MIXER_WRITE_VOLUME, &old_volume);
- _exit(0);
+ ioctl(dsp_fd, SNDCTL_DSP_RESET, 0);
+ if (mixer_fd >= 0)
+ ioctl(mixer_fd, SOUND_MIXER_WRITE_VOLUME, &old_volume);
+ _exit(0);
}
static void oss_sigint_handler(int signal) {
- num_repeats = 1;
+ num_repeats = 1;
}
static void play_sound(int volume, int repeats) {
- struct sigaction sa;
- int format = AFMT_U8;
- int channels = 1;
-
- dsp_fd = open(SOUND_DEV, O_WRONLY);
- if (dsp_fd < 0) {
- perror(SOUND_DEV);
- _exit(1);
- }
-
-
- /* This section of code fixes the nasty problem of samples
- * being played with pops and scratches when used with a
- * non-Linux system implementing OSS sound.
- */
- if (ioctl(dsp_fd, SNDCTL_DSP_SETFMT, &format) == -1) {
- perror(SOUND_DEV);
- exit(1);
- }
- if (format != AFMT_U8) {
- fprintf(stderr, "bad sound format\n");
- exit(1);
- }
- if (ioctl(dsp_fd, SNDCTL_DSP_CHANNELS, &channels) == -1) {
- perror(SOUND_DEV);
- exit(1);
- }
- if (channels != 1) {
- fprintf(stderr, "bad channels\n");
- exit(1);
- }
- /* End sound fix from Torbjorn Andersson (no dot thingies) */
-
- ioctl(dsp_fd, SNDCTL_DSP_SPEED, &sample_rate);
-
- if (volume != 255) {
- mixer_fd = open("/dev/mixer", O_RDWR);
- if (mixer_fd < 0)
- perror("/dev/mixer");
- else {
- int new_vol;
- ioctl(mixer_fd, SOUND_MIXER_READ_VOLUME, &old_volume);
- new_vol = volume * 100 / 8;
- new_vol = (new_vol << 8) | new_vol;
- ioctl(mixer_fd, SOUND_MIXER_WRITE_VOLUME, &new_vol);
- }
- }
- else
- mixer_fd = -1;
-
- sa.sa_handler = sigterm_handler;
- sigemptyset(&sa.sa_mask);
- sigaddset(&sa.sa_mask, SIGINT);
- sigaddset(&sa.sa_mask, SIGTERM);
- sa.sa_flags = 0;
- sigaction(SIGTERM, &sa, NULL);
- sa.sa_handler = oss_sigint_handler;
- sigaction(SIGINT, &sa, NULL);
-
- for (num_repeats = repeats; num_repeats > 0;
- num_repeats < 255 ? num_repeats-- : 0) {
- char *curr_pos = sound_buffer;
- int len_left = sound_length;
- int write_result;
-
- while (len_left > 0) {
- write_result = write(dsp_fd, curr_pos, len_left);
- if (write_result <= 0) {
- perror(SOUND_DEV);
- goto finish;
- }
- curr_pos += write_result;
- len_left -= write_result;
- }
- }
-
- finish:
- ioctl(dsp_fd, SNDCTL_DSP_SYNC, 0);
- if (mixer_fd >= 0)
- ioctl(mixer_fd, SOUND_MIXER_WRITE_VOLUME, &old_volume);
- _exit(0);
+ struct sigaction sa;
+ int format = AFMT_U8;
+ int channels = 1;
+
+ dsp_fd = open(SOUND_DEV, O_WRONLY);
+ if (dsp_fd < 0) {
+ perror(SOUND_DEV);
+ _exit(1);
+ }
+
+
+ /* This section of code fixes the nasty problem of samples
+ * being played with pops and scratches when used with a
+ * non-Linux system implementing OSS sound.
+ */
+ if (ioctl(dsp_fd, SNDCTL_DSP_SETFMT, &format) == -1) {
+ perror(SOUND_DEV);
+ exit(1);
+ }
+ if (format != AFMT_U8) {
+ fprintf(stderr, "bad sound format\n");
+ exit(1);
+ }
+ if (ioctl(dsp_fd, SNDCTL_DSP_CHANNELS, &channels) == -1) {
+ perror(SOUND_DEV);
+ exit(1);
+ }
+ if (channels != 1) {
+ fprintf(stderr, "bad channels\n");
+ exit(1);
+ }
+ /* End sound fix from Torbjorn Andersson (no dot thingies) */
+
+ ioctl(dsp_fd, SNDCTL_DSP_SPEED, &sample_rate);
+
+ if (volume != 255) {
+ mixer_fd = open("/dev/mixer", O_RDWR);
+ if (mixer_fd < 0)
+ perror("/dev/mixer");
+ else {
+ int new_vol;
+ ioctl(mixer_fd, SOUND_MIXER_READ_VOLUME, &old_volume);
+ new_vol = volume * 100 / 8;
+ new_vol = (new_vol << 8) | new_vol;
+ ioctl(mixer_fd, SOUND_MIXER_WRITE_VOLUME, &new_vol);
+ }
+ } else
+ mixer_fd = -1;
+
+ sa.sa_handler = sigterm_handler;
+ sigemptyset(&sa.sa_mask);
+ sigaddset(&sa.sa_mask, SIGINT);
+ sigaddset(&sa.sa_mask, SIGTERM);
+ sa.sa_flags = 0;
+ sigaction(SIGTERM, &sa, NULL);
+ sa.sa_handler = oss_sigint_handler;
+ sigaction(SIGINT, &sa, NULL);
+
+ for (num_repeats = repeats; num_repeats > 0;
+ num_repeats < 255 ? num_repeats-- : 0) {
+ char *curr_pos = sound_buffer;
+ int len_left = sound_length;
+ int write_result;
+
+ while (len_left > 0) {
+ write_result = write(dsp_fd, curr_pos, len_left);
+ if (write_result <= 0) {
+ perror(SOUND_DEV);
+ goto finish;
+ }
+ curr_pos += write_result;
+ len_left -= write_result;
+ }
+ }
+
+finish:
+ ioctl(dsp_fd, SNDCTL_DSP_SYNC, 0);
+ if (mixer_fd >= 0)
+ ioctl(mixer_fd, SOUND_MIXER_WRITE_VOLUME, &old_volume);
+ _exit(0);
}
void os_beep (int number)
{
+ /* This should later be expanded to support high and low beeps. */
+ beep();
- /* This should later be expanded to support high and low beeps.
- */
-
- beep();
-
-}/* os_beep */
+} /* os_beep */
/*
void os_prepare_sample (int number)
{
- FILE *samples;
- char *filename;
- const char *basename, *dotpos;
- int namelen;
- int read_length;
-
- if (sound_buffer != NULL && current_num == number)
- return;
-
- free(sound_buffer);
- sound_buffer = NULL;
-
- filename = malloc(strlen(f_setup.story_name) + 10);
-
- if (! filename)
- return;
-
- basename = strrchr(f_setup.story_name, '/');
- if (basename) basename++; else basename = f_setup.story_name;
- dotpos = strrchr(basename, '.');
- namelen = (dotpos ? dotpos - basename : strlen(basename));
- if (namelen > 6) namelen = 6;
- sprintf(filename, "%.*ssound/%.*s%02d.snd",
- basename - f_setup.story_name, f_setup.story_name,
- namelen, basename, number);
-
-
- samples = fopen(filename, "r");
- if (samples == NULL) {
- perror(filename);
- return;
- }
-
- fgetc(samples); fgetc(samples); fgetc(samples); fgetc(samples);
- sample_rate = fgetc(samples) << 8;
- sample_rate |= fgetc(samples);
- fgetc(samples); fgetc(samples);
- sound_length = fgetc(samples) << 8;
- sound_length |= fgetc(samples);
- sound_buffer = NULL;
-
- if (sound_length > 0) {
- sound_buffer = malloc(sound_length);
- if (!sound_buffer) {
- perror("malloc");
- return;
- }
- read_length = fread(sound_buffer, 1, sound_length, samples);
- if (read_length < sound_length) {
- if (feof(samples)) {
- /*
- * One of the Sherlock samples trigger this for me, so let's make it
- * a non-fatal error.
- */
- sound_buffer = realloc(sound_buffer, read_length);
- if (! sound_buffer) {
- perror("realloc");
- return;
- }
- sound_length = read_length;
- } else {
- errno = ferror(samples);
- perror(filename);
+ FILE *samples;
+ char *filename;
+ const char *basename, *dotpos;
+ int namelen;
+ int read_length;
+
+ if (sound_buffer != NULL && current_num == number)
+ return;
+
free(sound_buffer);
sound_buffer = NULL;
- }
- }
- }
-}/* os_prepare_sample */
+
+ filename = malloc(strlen(f_setup.story_name) + 10);
+
+ if (! filename)
+ return;
+
+ basename = strrchr(f_setup.story_name, '/');
+ if (basename) basename++; else basename = f_setup.story_name;
+ dotpos = strrchr(basename, '.');
+ namelen = (dotpos ? dotpos - basename : strlen(basename));
+ if (namelen > 6) namelen = 6;
+ sprintf(filename, "%.*ssound/%.*s%02d.snd",
+ basename - f_setup.story_name, f_setup.story_name,
+ namelen, basename, number);
+
+
+ samples = fopen(filename, "r");
+ if (samples == NULL) {
+ perror(filename);
+ return;
+ }
+
+ fgetc(samples); fgetc(samples); fgetc(samples); fgetc(samples);
+ sample_rate = fgetc(samples) << 8;
+ sample_rate |= fgetc(samples);
+ fgetc(samples); fgetc(samples);
+ sound_length = fgetc(samples) << 8;
+ sound_length |= fgetc(samples);
+ sound_buffer = NULL;
+
+ if (sound_length > 0) {
+ sound_buffer = malloc(sound_length);
+ if (!sound_buffer) {
+ perror("malloc");
+ return;
+ }
+ read_length = fread(sound_buffer, 1, sound_length, samples);
+ if (read_length < sound_length) {
+ if (feof(samples)) {
+ /*
+ * One of the Sherlock samples trigger this for me, so let's make it
+ * a non-fatal error.
+ */
+ sound_buffer = realloc(sound_buffer, read_length);
+ if (! sound_buffer) {
+ perror("realloc");
+ return;
+ }
+ sound_length = read_length;
+ } else {
+ errno = ferror(samples);
+ perror(filename);
+ free(sound_buffer);
+ sound_buffer = NULL;
+ }
+ }
+ }
+} /* os_prepare_sample */
+
static void sigchld_handler(int signal) {
- int status;
- struct sigaction sa;
-
- waitpid(child_pid, &status, WNOHANG);
- child_pid = 0;
- sa.sa_handler = SIG_IGN;
- sigemptyset(&sa.sa_mask);
- sa.sa_flags = 0;
- sigaction(SIGCHLD, &sa, NULL);
- end_of_sound();
+ int status;
+ struct sigaction sa;
+
+ waitpid(child_pid, &status, WNOHANG);
+ child_pid = 0;
+ sa.sa_handler = SIG_IGN;
+ sigemptyset(&sa.sa_mask);
+ sa.sa_flags = 0;
+ sigaction(SIGCHLD, &sa, NULL);
+ end_of_sound();
}
+
/*
* os_start_sample
*
void os_start_sample (int number, int volume, int repeats, zword eos)
{
- /* INCOMPLETE */
-
- sigset_t sigchld_mask;
- struct sigaction sa;
-
- os_prepare_sample(number);
- if (! sound_buffer)
- return;
- os_stop_sample(0);
-
- sigemptyset(&sigchld_mask);
- sigaddset(&sigchld_mask, SIGCHLD);
- sigprocmask(SIG_BLOCK, &sigchld_mask, NULL);
-
- child_pid = fork();
-
- if (child_pid < 0) { /* error in fork */
- perror("fork");
- return;
- }
- else if (child_pid == 0) { /* child */
- sigprocmask(SIG_UNBLOCK, &sigchld_mask, NULL);
- play_sound(volume, repeats);
- }
- else { /* parent */
- sa.sa_handler = sigchld_handler;
- sigemptyset(&sa.sa_mask);
- sa.sa_flags = 0;
- sigaction(SIGCHLD, &sa, NULL);
-
- sigprocmask(SIG_UNBLOCK, &sigchld_mask, NULL);
- }
-}/* os_start_sample */
+ /* INCOMPLETE */
+
+ sigset_t sigchld_mask;
+ struct sigaction sa;
+
+ os_prepare_sample(number);
+ if (! sound_buffer)
+ return;
+ os_stop_sample(0);
+
+ sigemptyset(&sigchld_mask);
+ sigaddset(&sigchld_mask, SIGCHLD);
+ sigprocmask(SIG_BLOCK, &sigchld_mask, NULL);
+
+ child_pid = fork();
+
+ if (child_pid < 0) { /* error in fork */
+ perror("fork");
+ return;
+ } else if (child_pid == 0) { /* child */
+ sigprocmask(SIG_UNBLOCK, &sigchld_mask, NULL);
+ play_sound(volume, repeats);
+ } else { /* parent */
+ sa.sa_handler = sigchld_handler;
+ sigemptyset(&sa.sa_mask);
+ sa.sa_flags = 0;
+ sigaction(SIGCHLD, &sa, NULL);
+
+ sigprocmask(SIG_UNBLOCK, &sigchld_mask, NULL);
+ }
+} /* os_start_sample */
+
/* Send the specified signal to the player program, then wait for
it to exit. */
-
static void stop_player(int signal) {
- sigset_t sigchld_mask;
- struct sigaction sa;
- int status;
-
- sigemptyset(&sigchld_mask);
- sigaddset(&sigchld_mask, SIGCHLD);
- sigprocmask(SIG_BLOCK, &sigchld_mask, NULL);
-
- if (child_pid == 0) {
- sigprocmask(SIG_UNBLOCK, &sigchld_mask, NULL);
- return;
- }
- kill(child_pid, signal);
- waitpid(child_pid, &status, 0);
- child_pid = 0;
-
- sa.sa_handler = SIG_IGN;
- sigemptyset(&sa.sa_mask);
- sa.sa_flags = 0;
- sigaction(SIGCHLD, &sa, NULL);
-
- sigprocmask(SIG_UNBLOCK, &sigchld_mask, NULL);
+ sigset_t sigchld_mask;
+ struct sigaction sa;
+ int status;
+
+ sigemptyset(&sigchld_mask);
+ sigaddset(&sigchld_mask, SIGCHLD);
+ sigprocmask(SIG_BLOCK, &sigchld_mask, NULL);
+
+ if (child_pid == 0) {
+ sigprocmask(SIG_UNBLOCK, &sigchld_mask, NULL);
+ return;
+ }
+ kill(child_pid, signal);
+ waitpid(child_pid, &status, 0);
+ child_pid = 0;
+
+ sa.sa_handler = SIG_IGN;
+ sigemptyset(&sa.sa_mask);
+ sa.sa_flags = 0;
+ sigaction(SIGCHLD, &sa, NULL);
+
+ sigprocmask(SIG_UNBLOCK, &sigchld_mask, NULL);
}
+
/*
* os_stop_sample
*
* Turn off the current sample.
*
*/
-
void os_stop_sample (int number)
{
- /* INCOMPLETE */
+ /* INCOMPLETE */
+
+ stop_player(SIGTERM);
+} /* os_stop_sample */
- stop_player(SIGTERM);
-}/* os_stop_sample */
/*
* os_finish_with_sample
void os_finish_with_sample (int number)
{
- /* INCOMPLETE */
+ /* INCOMPLETE */
+
+ free(sound_buffer);
+ sound_buffer = NULL;
+} /* os_finish_with_sample */
- free(sound_buffer);
- sound_buffer = NULL;
-}/* os_finish_with_sample */
/*
* os_wait_sample
void os_wait_sample (void)
{
- stop_player(SIGINT);
-}/* os_wait_sample */
+ stop_player(SIGINT);
+} /* os_wait_sample */
#endif /* OSS_SOUND */
Scope-eye.net Git Repository / liskon_frotz.git / commitdiff