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Enable the OSS backend on Linux.

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This is the lowest priority stock backend for Linux.
This commit is contained in:
David Reid
2025-07-17 19:09:30 +10:00
parent 7b157815ab
commit c468230e8f
1 changed files with 85 additions and 83 deletions
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miniaudio.h
+85 -83
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@@ -6693,7 +6693,7 @@ BACKENDS
#if defined(__NetBSD__) || defined(__OpenBSD__) #if defined(__NetBSD__) || defined(__OpenBSD__)
#define MA_SUPPORT_AUDIO4 /* Only support audio(4) on platforms with known support. */ #define MA_SUPPORT_AUDIO4 /* Only support audio(4) on platforms with known support. */
#endif #endif
#if defined(__FreeBSD__) || defined(__DragonFly__) #if defined(__FreeBSD__) || defined(__DragonFly__) || defined(MA_LINUX)
#define MA_SUPPORT_OSS /* Only support OSS on specific platforms with known support. */ #define MA_SUPPORT_OSS /* Only support OSS on specific platforms with known support. */
#endif #endif
#endif #endif
@@ -6729,15 +6729,6 @@ BACKENDS
#if defined(MA_SUPPORT_COREAUDIO) && !defined(MA_NO_COREAUDIO) && (!defined(MA_ENABLE_ONLY_SPECIFIC_BACKENDS) || defined(MA_ENABLE_COREAUDIO)) #if defined(MA_SUPPORT_COREAUDIO) && !defined(MA_NO_COREAUDIO) && (!defined(MA_ENABLE_ONLY_SPECIFIC_BACKENDS) || defined(MA_ENABLE_COREAUDIO))
#define MA_HAS_COREAUDIO #define MA_HAS_COREAUDIO
#endif #endif
#if defined(MA_SUPPORT_SNDIO) && !defined(MA_NO_SNDIO) && (!defined(MA_ENABLE_ONLY_SPECIFIC_BACKENDS) || defined(MA_ENABLE_SNDIO))
#define MA_HAS_SNDIO
#endif
#if defined(MA_SUPPORT_AUDIO4) && !defined(MA_NO_AUDIO4) && (!defined(MA_ENABLE_ONLY_SPECIFIC_BACKENDS) || defined(MA_ENABLE_AUDIO4))
#define MA_HAS_AUDIO4
#endif
#if defined(MA_SUPPORT_OSS) && !defined(MA_NO_OSS) && (!defined(MA_ENABLE_ONLY_SPECIFIC_BACKENDS) || defined(MA_ENABLE_OSS))
#define MA_HAS_OSS
#endif
#if defined(MA_SUPPORT_PULSEAUDIO) && !defined(MA_NO_PULSEAUDIO) && (!defined(MA_ENABLE_ONLY_SPECIFIC_BACKENDS) || defined(MA_ENABLE_PULSEAUDIO)) #if defined(MA_SUPPORT_PULSEAUDIO) && !defined(MA_NO_PULSEAUDIO) && (!defined(MA_ENABLE_ONLY_SPECIFIC_BACKENDS) || defined(MA_ENABLE_PULSEAUDIO))
#define MA_HAS_PULSEAUDIO #define MA_HAS_PULSEAUDIO
#endif #endif
@@ -6747,6 +6738,15 @@ BACKENDS
#if defined(MA_SUPPORT_JACK) && !defined(MA_NO_JACK) && (!defined(MA_ENABLE_ONLY_SPECIFIC_BACKENDS) || defined(MA_ENABLE_JACK)) #if defined(MA_SUPPORT_JACK) && !defined(MA_NO_JACK) && (!defined(MA_ENABLE_ONLY_SPECIFIC_BACKENDS) || defined(MA_ENABLE_JACK))
#define MA_HAS_JACK #define MA_HAS_JACK
#endif #endif
#if defined(MA_SUPPORT_SNDIO) && !defined(MA_NO_SNDIO) && (!defined(MA_ENABLE_ONLY_SPECIFIC_BACKENDS) || defined(MA_ENABLE_SNDIO))
#define MA_HAS_SNDIO
#endif
#if defined(MA_SUPPORT_AUDIO4) && !defined(MA_NO_AUDIO4) && (!defined(MA_ENABLE_ONLY_SPECIFIC_BACKENDS) || defined(MA_ENABLE_AUDIO4))
#define MA_HAS_AUDIO4
#endif
#if defined(MA_SUPPORT_OSS) && !defined(MA_NO_OSS) && (!defined(MA_ENABLE_ONLY_SPECIFIC_BACKENDS) || defined(MA_ENABLE_OSS))
#define MA_HAS_OSS
#endif
#if defined(MA_SUPPORT_AAUDIO) && !defined(MA_NO_AAUDIO) && (!defined(MA_ENABLE_ONLY_SPECIFIC_BACKENDS) || defined(MA_ENABLE_AAUDIO)) #if defined(MA_SUPPORT_AAUDIO) && !defined(MA_NO_AAUDIO) && (!defined(MA_ENABLE_ONLY_SPECIFIC_BACKENDS) || defined(MA_ENABLE_AAUDIO))
#define MA_HAS_AAUDIO #define MA_HAS_AAUDIO
#endif #endif
@@ -6888,69 +6888,6 @@ extern ma_device_backend_vtable* ma_device_backend_coreaudio;
/* END COREAUDIO */ /* END COREAUDIO */
/* BEG SNDIO */
typedef struct ma_context_config_sndio
{
int _unused;
} ma_context_config_sndio;
MA_API ma_context_config_sndio ma_context_config_sndio_init(void);
typedef struct ma_device_config_sndio
{
int _unused;
} ma_device_config_sndio;
MA_API ma_device_config_sndio ma_device_config_sndio_init(void);
extern ma_device_backend_vtable* ma_device_backend_sndio;
/* END SNDIO */
/* BEG AUDIO4 */
typedef struct ma_context_config_audio4
{
int _unused;
} ma_context_config_audio4;
MA_API ma_context_config_audio4 ma_context_config_audio4_init(void);
typedef struct ma_device_config_audio4
{
int _unused;
} ma_device_config_audio4;
MA_API ma_device_config_audio4 ma_device_config_audio4_init(void);
extern ma_device_backend_vtable* ma_device_backend_audio4;
/* END AUDIO4 */
/* BEG OSS */
typedef struct ma_context_config_oss
{
int _unused;
} ma_context_config_oss;
MA_API ma_context_config_oss ma_context_config_oss_init(void);
typedef struct ma_device_config_oss
{
int _unused;
} ma_device_config_oss;
MA_API ma_device_config_oss ma_device_config_oss_init(void);
extern ma_device_backend_vtable* ma_device_backend_oss;
/* END OSS */
/* BEG PULSEAUDIO */ /* BEG PULSEAUDIO */
typedef struct ma_context_config_pulseaudio typedef struct ma_context_config_pulseaudio
{ {
@@ -7022,6 +6959,69 @@ extern ma_device_backend_vtable* ma_device_backend_jack;
/* END JACK */ /* END JACK */
/* BEG SNDIO */
typedef struct ma_context_config_sndio
{
int _unused;
} ma_context_config_sndio;
MA_API ma_context_config_sndio ma_context_config_sndio_init(void);
typedef struct ma_device_config_sndio
{
int _unused;
} ma_device_config_sndio;
MA_API ma_device_config_sndio ma_device_config_sndio_init(void);
extern ma_device_backend_vtable* ma_device_backend_sndio;
/* END SNDIO */
/* BEG AUDIO4 */
typedef struct ma_context_config_audio4
{
int _unused;
} ma_context_config_audio4;
MA_API ma_context_config_audio4 ma_context_config_audio4_init(void);
typedef struct ma_device_config_audio4
{
int _unused;
} ma_device_config_audio4;
MA_API ma_device_config_audio4 ma_device_config_audio4_init(void);
extern ma_device_backend_vtable* ma_device_backend_audio4;
/* END AUDIO4 */
/* BEG OSS */
typedef struct ma_context_config_oss
{
int _unused;
} ma_context_config_oss;
MA_API ma_context_config_oss ma_context_config_oss_init(void);
typedef struct ma_device_config_oss
{
int _unused;
} ma_device_config_oss;
MA_API ma_device_config_oss ma_device_config_oss_init(void);
extern ma_device_backend_vtable* ma_device_backend_oss;
/* END OSS */
/* BEG AAUDIO */ /* BEG AAUDIO */
/* AAudio usage types. */ /* AAudio usage types. */
typedef enum typedef enum
@@ -39238,6 +39238,10 @@ OSS Backend
#define SNDCTL_DSP_HALT SNDCTL_DSP_RESET #define SNDCTL_DSP_HALT SNDCTL_DSP_RESET
#endif #endif
#ifndef OSS_GETVERSION
#define OSS_GETVERSION _IOR('M', 118, int)
#endif
#define MA_OSS_DEFAULT_DEVICE_NAME "/dev/dsp" #define MA_OSS_DEFAULT_DEVICE_NAME "/dev/dsp"
typedef struct ma_context_state_oss typedef struct ma_context_state_oss
@@ -39303,7 +39307,7 @@ static ma_result ma_context_init__oss(ma_context* pContext, const void* pContext
fd = ma_open_temp_device__oss(); fd = ma_open_temp_device__oss();
if (fd == -1) { if (fd == -1) {
ma_free(pContextStateOSS, ma_context_get_allocation_callbacks(pContext)); ma_free(pContextStateOSS, ma_context_get_allocation_callbacks(pContext));
ma_log_post(ma_context_get_log(pContext), MA_LOG_LEVEL_ERROR, "[OSS] Failed to open temporary device for retrieving system properties."); /* Looks liks OSS isn't installed, or there are no available devices. */ ma_log_postf(ma_context_get_log(pContext), MA_LOG_LEVEL_ERROR, "[OSS] Failed to open temporary device for retrieving system properties. errno = %s", strerror(errno)); /* Looks liks OSS isn't installed, or there are no available devices. */
return MA_NO_BACKEND; return MA_NO_BACKEND;
} }
@@ -39311,10 +39315,8 @@ static ma_result ma_context_init__oss(ma_context* pContext, const void* pContext
ossVersion = 0; ossVersion = 0;
result = ioctl(fd, OSS_GETVERSION, &ossVersion); result = ioctl(fd, OSS_GETVERSION, &ossVersion);
if (result == -1) { if (result == -1) {
close(fd); ma_log_postf(ma_context_get_log(pContext), MA_LOG_LEVEL_WARNING, "[OSS] Failed to retrieve OSS version. Assuming the version of SOUND_VERSION (%d).", SOUND_VERSION);
ma_free(pContextStateOSS, ma_context_get_allocation_callbacks(pContext)); ossVersion = SOUND_VERSION;
ma_log_post(ma_context_get_log(pContext), MA_LOG_LEVEL_ERROR, "[OSS] Failed to retrieve OSS version.");
return MA_NO_BACKEND;
} }
/* The file handle to temp device is no longer needed. Close ASAP. */ /* The file handle to temp device is no longer needed. Close ASAP. */
@@ -39332,11 +39334,11 @@ static ma_result ma_context_init__oss(ma_context* pContext, const void* pContext
#if defined(MA_OSS_MODERN) #if defined(MA_OSS_MODERN)
{ {
ma_log_post(ma_context_get_log(pContext), MA_LOG_LEVEL_DEBUG, "[OSS] API: Modern"); ma_log_postf(ma_context_get_log(pContext), MA_LOG_LEVEL_DEBUG, "[OSS] API: Modern");
} }
#else #else
{ {
ma_log_post(ma_context_get_log(pContext), MA_LOG_LEVEL_DEBUG, "[OSS] API: Legacy"); ma_log_postf(ma_context_get_log(pContext), MA_LOG_LEVEL_DEBUG, "[OSS] API: Legacy");
} }
#endif #endif
@@ -44493,12 +44495,12 @@ static const void* ma_context_config_find_backend_config(const ma_context_config
{ ma_device_backend_dsound, NULL }, \ { ma_device_backend_dsound, NULL }, \
{ ma_device_backend_winmm, NULL }, \ { ma_device_backend_winmm, NULL }, \
{ ma_device_backend_coreaudio, NULL }, \ { ma_device_backend_coreaudio, NULL }, \
{ ma_device_backend_sndio, NULL }, \
{ ma_device_backend_audio4, NULL }, \
{ ma_device_backend_oss, NULL }, \
{ ma_device_backend_pulseaudio, NULL }, \ { ma_device_backend_pulseaudio, NULL }, \
{ ma_device_backend_alsa, NULL }, \ { ma_device_backend_alsa, NULL }, \
{ ma_device_backend_jack, NULL }, \ { ma_device_backend_jack, NULL }, \
{ ma_device_backend_sndio, NULL }, \
{ ma_device_backend_audio4, NULL }, \
{ ma_device_backend_oss, NULL }, \
{ ma_device_backend_aaudio, NULL }, \ { ma_device_backend_aaudio, NULL }, \
{ ma_device_backend_opensl, NULL }, \ { ma_device_backend_opensl, NULL }, \
{ ma_device_backend_webaudio, NULL }, \ { ma_device_backend_webaudio, NULL }, \