mirror of
https://github.com/bsnes-emu/bsnes.git
synced 2025-04-02 10:42:14 -04:00
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.)
95 lines
2.3 KiB
C++
95 lines
2.3 KiB
C++
#include <pulse/simple.h>
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#include <pulse/error.h>
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struct AudioPulseAudioSimple : Audio {
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~AudioPulseAudioSimple() { term(); }
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struct {
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pa_simple* handle = nullptr;
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pa_sample_spec spec;
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} device;
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struct {
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uint32_t* data = nullptr;
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unsigned offset = 0;
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} buffer;
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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(device.handle) 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 left, uint16_t right) -> void {
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if(!device.handle) return;
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buffer.data[buffer.offset++] = left + (right << 16);
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if(buffer.offset >= 64) {
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int error;
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pa_simple_write(device.handle, (const void*)buffer.data, buffer.offset * sizeof(uint32_t), &error);
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buffer.offset = 0;
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}
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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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device.spec.format = PA_SAMPLE_S16LE;
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device.spec.channels = 2;
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device.spec.rate = settings.frequency;
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int error = 0;
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device.handle = pa_simple_new(
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0, //default server
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"ruby::pulseaudiosimple", //application name
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PA_STREAM_PLAYBACK, //direction
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0, //default device
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"audio", //stream description
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&device.spec, //sample format
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0, //default channel map
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0, //default buffering attributes
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&error //error code
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);
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if(!device.handle) {
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fprintf(stderr, "ruby::pulseaudiosimple failed to initialize - %s\n", pa_strerror(error));
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return false;
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}
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buffer.data = new uint32_t[64];
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buffer.offset = 0;
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return true;
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}
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auto term() -> void {
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if(device.handle) {
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int error;
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pa_simple_flush(device.handle, &error);
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pa_simple_free(device.handle);
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device.handle = nullptr;
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}
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if(buffer.data) {
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delete[] buffer.data;
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buffer.data = nullptr;
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}
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}
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};
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