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Code Issues 121 Wiki Activity

audio: use native OpenAL Soft typedefs, drop local token fallbacks

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Now that ref/openal ships a current alext.h, include it and use the real
LPALC*SOFT / ALCEVENTPROCTYPESOFT typedefs instead of hand-rolled function
pointer types and #define'd ALC_* tokens. The event callback is marked
ALC_APIENTRY + noexcept to match ALCEVENTPROCTYPESOFT. No behaviour change.
This commit is contained in:
maj00r
2026-07-04 15:33:32 +02:00
parent 6b97268014
commit 3d6c45cd00
3 changed files with 19 additions and 36 deletions
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35
audio/audiorenderer.cpp
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@@ -17,23 +17,6 @@ http://mozilla.org/MPL/2.0/.
#include "simulation/simulation.h"
#include "vehicle/Train.h"
// ALC_EXT_disconnect / ALC_SOFT_reopen_device tokens; the bundled AL headers ship no alext.h,
// but OpenAL Soft provides these at runtime (resolved via alcGetProcAddress).
#ifndef ALC_CONNECTED
#define ALC_CONNECTED 0x313
#endif
// ALC_ENUMERATE_ALL_EXT token; identifies the system's current default output device
#ifndef ALC_DEFAULT_ALL_DEVICES_SPECIFIER
#define ALC_DEFAULT_ALL_DEVICES_SPECIFIER 0x1012
#endif
// ALC_SOFT_system_events tokens (bundled headers may predate them); functions resolved at runtime
#ifndef ALC_EVENT_TYPE_DEFAULT_DEVICE_CHANGED_SOFT
#define ALC_PLAYBACK_DEVICE_SOFT 0x19D4
#define ALC_CAPTURE_DEVICE_SOFT 0x19D5
#define ALC_EVENT_TYPE_DEFAULT_DEVICE_CHANGED_SOFT 0x19D6
#define ALC_EVENT_TYPE_DEVICE_REMOVED_SOFT 0x19D8
#endif
namespace audio {
openal_renderer renderer;
@@ -299,8 +282,8 @@ openal_renderer::~openal_renderer() {
// invoked by OpenAL (possibly on an internal thread) on device events; only flags the change,
// the actual reopen is done on the main thread in update()
void
openal_renderer::device_event_callback( ALCenum eventtype, ALCenum devicetype, ALCdevice */*device*/, ALCsizei /*length*/, ALCchar const */*message*/, void *userparam ) {
void ALC_APIENTRY
openal_renderer::device_event_callback( ALCenum eventtype, ALCenum devicetype, ALCdevice */*device*/, ALCsizei /*length*/, ALCchar const */*message*/, void *userparam ) noexcept {
if( userparam == nullptr ) { return; }
if( devicetype == ALC_CAPTURE_DEVICE_SOFT ) { return; } // only care about playback output
@@ -639,23 +622,23 @@ openal_renderer::init_caps() {
// Initialize all extension function pointers
if (alIsExtensionPresent("AL_SOFT_deferred_updates"))
{
m_alDeferUpdatesSOFT = (void(*)())alGetProcAddress("alDeferUpdatesSOFT");
m_alProcessUpdatesSOFT = (void(*)())alGetProcAddress("alProcessUpdatesSOFT");
m_alDeferUpdatesSOFT = (LPALDEFERUPDATESSOFT)alGetProcAddress("alDeferUpdatesSOFT");
m_alProcessUpdatesSOFT = (LPALPROCESSUPDATESSOFT)alGetProcAddress("alProcessUpdatesSOFT");
}
if (!m_alDeferUpdatesSOFT || !m_alProcessUpdatesSOFT)
WriteLog("sound: warning: extension AL_SOFT_deferred_updates not found");
if (alcIsExtensionPresent(m_device, "ALC_SOFT_pause_device"))
{
m_alcDevicePauseSOFT = (void(*)(ALCdevice*))alcGetProcAddress(m_device, "alcDevicePauseSOFT");
m_alcDeviceResumeSOFT = (void(*)(ALCdevice*))alcGetProcAddress(m_device, "alcDeviceResumeSOFT");
m_alcDevicePauseSOFT = (LPALCDEVICEPAUSESOFT)alcGetProcAddress(m_device, "alcDevicePauseSOFT");
m_alcDeviceResumeSOFT = (LPALCDEVICERESUMESOFT)alcGetProcAddress(m_device, "alcDeviceResumeSOFT");
}
if (!m_alcDevicePauseSOFT || !m_alcDeviceResumeSOFT)
WriteLog("sound: warning: extension ALC_SOFT_pause_device not found");
m_candetectdisconnect = ( alcIsExtensionPresent( m_device, "ALC_EXT_disconnect" ) == ALC_TRUE );
if( alcIsExtensionPresent( m_device, "ALC_SOFT_reopen_device" ) == ALC_TRUE )
m_alcReopenDeviceSOFT = (ALCboolean(*)(ALCdevice*, ALCchar const*, ALCint const*))alcGetProcAddress( m_device, "alcReopenDeviceSOFT" );
m_alcReopenDeviceSOFT = (LPALCREOPENDEVICESOFT)alcGetProcAddress( m_device, "alcReopenDeviceSOFT" );
if( !m_alcReopenDeviceSOFT )
WriteLog( "sound: warning: extension ALC_SOFT_reopen_device not found; audio output device changes won't be followed" );
@@ -663,8 +646,8 @@ openal_renderer::init_caps() {
// catches both device removal and default-output changes, incl. re-plugging headphones
if( m_alcReopenDeviceSOFT != nullptr
&& alcIsExtensionPresent( m_device, "ALC_SOFT_system_events" ) == ALC_TRUE ) {
m_alcEventControlSOFT = (ALCboolean(*)(ALCsizei, ALCenum const*, ALCboolean))alcGetProcAddress( m_device, "alcEventControlSOFT" );
m_alcEventCallbackSOFT = (void(*)(alc_event_proc, void*))alcGetProcAddress( m_device, "alcEventCallbackSOFT" );
m_alcEventControlSOFT = (LPALCEVENTCONTROLSOFT)alcGetProcAddress( m_device, "alcEventControlSOFT" );
m_alcEventCallbackSOFT = (LPALCEVENTCALLBACKSOFT)alcGetProcAddress( m_device, "alcEventCallbackSOFT" );
if( m_alcEventControlSOFT != nullptr && m_alcEventCallbackSOFT != nullptr ) {
m_alcEventCallbackSOFT( &openal_renderer::device_event_callback, this );
ALCenum const events[]{ ALC_EVENT_TYPE_DEFAULT_DEVICE_CHANGED_SOFT, ALC_EVENT_TYPE_DEVICE_REMOVED_SOFT };