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resampling

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This commit is contained in:
georgemoralis 2026-07-09 23:55:57 +03:00
parent 3405d982f2
commit bd6232ecbb
1 changed files with 17 additions and 7 deletions
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24
src/core/libraries/audio/openal_manager.h
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@ -12,6 +12,7 @@
#include "common/logging/log.h"
#include "core/emulator_settings.h"
// ALC_SOFT_HRTF constants, in case the alext.h in use predates the extension.
#ifndef ALC_SOFT_HRTF
#define ALC_HRTF_SOFT 0x1992
#define ALC_DONT_CARE_SOFT 0x0002
@ -212,21 +213,23 @@ private:
return false;
}
// Create context, requesting HRTF per the user setting when the device
// supports ALC_SOFT_HRTF. In Auto mode OpenAL Soft decides on its own
const ALCint* attr_ptr = nullptr;
std::array<ALCint, 3> attrs{};
std::array<ALCint, 5> attrs{};
std::size_t attr_count = 0;
attrs[attr_count++] = ALC_FREQUENCY;
attrs[attr_count++] = 48000;
const bool has_hrtf_ext = alcIsExtensionPresent(ctx.device, "ALC_SOFT_HRTF");
if (has_hrtf_ext) {
const u32 hrtf_mode = EmulatorSettings.GetOpenALHrtf();
const ALCint hrtf_value = hrtf_mode == OpenALHrtfMode::HrtfOn ? ALC_TRUE
: hrtf_mode == OpenALHrtfMode::HrtfOff ? ALC_FALSE
: ALC_DONT_CARE_SOFT;
attrs = {ALC_HRTF_SOFT, hrtf_value, 0};
attr_ptr = attrs.data();
attrs[attr_count++] = ALC_HRTF_SOFT;
attrs[attr_count++] = hrtf_value;
}
attrs[attr_count] = 0;
ctx.context = alcCreateContext(ctx.device, attr_ptr);
ctx.context = alcCreateContext(ctx.device, attrs.data());
if (!ctx.context) {
LOG_ERROR(Lib_AudioOut, "Failed to create OpenAL context");
alcCloseDevice(ctx.device);
@ -242,6 +245,13 @@ private:
actual_name = alcGetString(ctx.device, ALC_DEVICE_SPECIFIER);
}
ctx.device_name = actual_name ? actual_name : "Unknown";
ALCint mixer_rate = 0;
alcGetIntegerv(ctx.device, ALC_FREQUENCY, 1, &mixer_rate);
LOG_INFO(Lib_AudioOut, "OpenAL mixer rate for '{}': {} Hz", ctx.device_name, mixer_rate);
if (mixer_rate != 0 && mixer_rate != 48000) {
LOG_WARNING(Lib_AudioOut,
"OpenAL mixer is not running at 48000 Hz per-source resampling active");
}
if (has_hrtf_ext) {
ALCint status = ALC_HRTF_DISABLED_SOFT;