mirror of
https://github.com/bsnes-emu/bsnes.git
synced 2025-02-24 07:02:27 +01:00
e0815b55b9
byuu says: This WIP substantially restructures the ruby API for the first time since that project started. It is my hope that with this restructuring, destruction of the ruby objects should now be deterministic, which should fix the crashing on closing the emulator on Linux. We'll see I guess ... either way, it removed two layers of wrappers from ruby, so it's a pretty nice code cleanup. It won't compile on Windows due to a few issues I didn't see until uploading the WIP, too lazy to upload another. But I fixed all the compilation issues locally, so it'll work on Windows again with the next WIP (unless I break something else.) (Kind of annoying that Linux defines glActiveTexture but Windows doesn't.)
74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
#include <ao/ao.h>
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struct AudioAO : Audio {
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~AudioAO() { term(); }
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int driver_id;
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ao_sample_format driver_format;
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ao_device* audio_device = nullptr;
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struct {
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unsigned frequency = 22050;
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} settings;
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auto cap(const string& name) -> bool {
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if(name == Audio::Frequency) return true;
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return false;
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}
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auto get(const string& name) -> any {
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if(name == Audio::Frequency) return settings.frequency;
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return {};
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}
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auto set(const string& name, const any& value) -> bool {
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if(name == Audio::Frequency && value.is<unsigned>()) {
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settings.frequency = value.get<unsigned>();
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if(audio_device) init();
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return true;
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}
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return false;
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}
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auto sample(uint16_t l_sample, uint16_t r_sample) -> void {
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uint32_t samp = (l_sample << 0) + (r_sample << 16);
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ao_play(audio_device, (char*)&samp, 4); //This may need to be byte swapped for Big Endian
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}
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auto clear() -> void {
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}
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auto init() -> bool {
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ao_initialize();
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driver_id = ao_default_driver_id(); //ao_driver_id((const char*)driver)
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if(driver_id < 0) return false;
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driver_format.bits = 16;
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driver_format.channels = 2;
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driver_format.rate = settings.frequency;
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driver_format.byte_format = AO_FMT_LITTLE;
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ao_option* options = nullptr;
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ao_info *di = ao_driver_info(driver_id);
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if(!di) return false;
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if(!strcmp(di->short_name, "alsa")) {
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ao_append_option(&options, "buffer_time", "100000"); //100ms latency (default was 500ms)
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}
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audio_device = ao_open_live(driver_id, &driver_format, options);
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if(!audio_device) return false;
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return true;
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}
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auto term() -> void {
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if(audio_device) {
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ao_close(audio_device);
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audio_device = nullptr;
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}
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ao_shutdown();
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}
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};
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