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Removes assumption that all machines produce audio.

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This commit is contained in:
Thomas Harte 2021-06-14 21:02:55 -04:00
parent 5f7b3ae313
commit 26b019a4d4
1 changed files with 25 additions and 19 deletions
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8
OSBindings/SDL/main.cpp
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@ -832,11 +832,14 @@ int main(int argc, char *argv[]) {
} else if(volume < 0.0 || volume > 1.0) {
std::cerr << "Cannot run with volume " << volume_string << "; volumes must be between 0.0 and 1.0." << std::endl;
} else {
const auto audio_producer = machine->audio_producer();
if(audio_producer) {
const auto speaker = machine->audio_producer()->get_speaker();
if(speaker) speaker->set_output_volume(volume);
}
}
}
}
// Check whether a 'logical' keyboard has been requested, or the machine would prefer one anyway.
const bool logical_keyboard =
@ -907,7 +910,9 @@ int main(int argc, char *argv[]) {
machine->scan_producer()->set_scan_target(&scan_target);
// For now, lie about audio output intentions.
auto speaker = machine->audio_producer()->get_speaker();
const auto audio_producer = machine->audio_producer();
if(audio_producer) {
auto speaker = audio_producer->get_speaker();
if(speaker) {
// Create an audio pipe.
SDL_AudioSpec desired_audio_spec;
@ -928,6 +933,7 @@ int main(int argc, char *argv[]) {
speaker->set_delegate(&speaker_delegate);
SDL_PauseAudioDevice(speaker_delegate.audio_device, 0);
}
}
/*
If the machine offers anything for activity observation,