devilutionX/Source/utils/aulib.hpp

#pragma once
#ifndef NOSOUND

#include <memory>

#include <Aulib/Stream.h>

#ifdef DEVILUTIONX_RESAMPLER_SPEEX
#include <Aulib/ResamplerSpeex.h>
#endif

#ifdef DVL_AULIB_SUPPORTS_SDL_RESAMPLER
#include <Aulib/ResamplerSdl.h>
#endif

#include "options.h"

namespace devilution {

inline std::unique_ptr<Aulib::Resampler> CreateAulibResampler(int sourceRate)
{
	if (Aulib::sampleRate() == sourceRate)
		return nullptr;
	switch (*sgOptions.Audio.resampler) {
#ifdef DEVILUTIONX_RESAMPLER_SPEEX
	case Resampler::Speex:
		return std::make_unique<Aulib::ResamplerSpeex>(*sgOptions.Audio.resamplingQuality);
#endif
#ifdef DVL_AULIB_SUPPORTS_SDL_RESAMPLER
	case Resampler::SDL:
		return std::make_unique<Aulib::ResamplerSdl>();
#endif
	}
	return nullptr;
}

} // namespace devilution

#endif // !NOSOUND
Audio: Use SDL resampler where available 4 years ago			`#pragma once`
			`#ifndef NOSOUND`

			`#include <memory>`

			`#include <Aulib/Stream.h>`

Settings: Add Resampler Makes the resampler algorithm configurable from the settings menu. 4 years ago			`#ifdef DEVILUTIONX_RESAMPLER_SPEEX`
			`#include <Aulib/ResamplerSpeex.h>`
			`#endif`

Audio: Use SDL resampler where available 4 years ago			`#ifdef DVL_AULIB_SUPPORTS_SDL_RESAMPLER`
			`#include <Aulib/ResamplerSdl.h>`
			`#endif`

			`#include "options.h"`

			`namespace devilution {`

Audio: Avoid creating same-rate resamplers Each resampler allocates an input buffer and an output buffer. Since we create ~100 audio stream objects (1 per `sfx_MISC` effect), the memory cost of these buffers adds up. Avoids creating a resampler when the audio sampler rate matches the output sample rate. This is mostly the case when the output sample rate is 22050. 3 years ago			`inline std::unique_ptr<Aulib::Resampler> CreateAulibResampler(int sourceRate)`
Audio: Use SDL resampler where available 4 years ago			`{`
`CreateAulibResampler`: Check the real sample rate The requested sample rate is merely preferred and the actual rate may be different. 3 years ago			`if (Aulib::sampleRate() == sourceRate)`
Audio: Avoid creating same-rate resamplers Each resampler allocates an input buffer and an output buffer. Since we create ~100 audio stream objects (1 per `sfx_MISC` effect), the memory cost of these buffers adds up. Avoids creating a resampler when the audio sampler rate matches the output sample rate. This is mostly the case when the output sample rate is 22050. 3 years ago			`return nullptr;`
Settings: Add Resampler Makes the resampler algorithm configurable from the settings menu. 4 years ago			`switch (*sgOptions.Audio.resampler) {`
			`#ifdef DEVILUTIONX_RESAMPLER_SPEEX`
			`case Resampler::Speex:`
			`return std::make_unique<Aulib::ResamplerSpeex>(*sgOptions.Audio.resamplingQuality);`
			`#endif`
Audio: Use SDL resampler where available 4 years ago			`#ifdef DVL_AULIB_SUPPORTS_SDL_RESAMPLER`
Settings: Add Resampler Makes the resampler algorithm configurable from the settings menu. 4 years ago			`case Resampler::SDL:`
			`return std::make_unique<Aulib::ResamplerSdl>();`
Audio: Use SDL resampler where available 4 years ago			`#endif`
Settings: Add Resampler Makes the resampler algorithm configurable from the settings menu. 4 years ago			`}`
			`return nullptr;`
Audio: Use SDL resampler where available 4 years ago			`}`

			`} // namespace devilution`

			`#endif // !NOSOUND`