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Make mal_device_init_ex() more robust.

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This commit is contained in:
David Reid
2018-03-08 18:54:39 +10:00
parent 293d7424f8
commit 165c92ec8e
1 changed files with 39 additions and 26 deletions
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mini_al.h
+39 -26
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@@ -1283,7 +1283,7 @@ struct mal_device
//
// Effeciency: LOW
// This will dynamically load backends DLLs/SOs (such as dsound.dll).
mal_result mal_context_init(mal_backend backends[], mal_uint32 backendCount, const mal_context_config* pConfig, mal_context* pContext);
mal_result mal_context_init(const mal_backend backends[], mal_uint32 backendCount, const mal_context_config* pConfig, mal_context* pContext);
// Uninitializes a context.
//
@@ -1364,7 +1364,7 @@ mal_result mal_device_init(mal_context* pContext, mal_device_type type, mal_devi
// of the internal self-managed context.
//
// See mal_device_init().
mal_result mal_device_init_ex(mal_backend backends[], mal_uint32 backendCount, const mal_context_config* pContextConfig, mal_device_type type, mal_device_id* pDeviceID, const mal_device_config* pConfig, void* pUserData, mal_device* pDevice);
mal_result mal_device_init_ex(const mal_backend backends[], mal_uint32 backendCount, const mal_context_config* pContextConfig, mal_device_type type, mal_device_id* pDeviceID, const mal_device_config* pConfig, void* pUserData, mal_device* pDevice);
// Uninitializes a device.
//
@@ -11927,7 +11927,21 @@ mal_result mal_context_uninit_backend_apis(mal_context* pContext)
return result;
}
mal_result mal_context_init(mal_backend backends[], mal_uint32 backendCount, const mal_context_config* pConfig, mal_context* pContext)
static const mal_backend g_malDefaultBackends[] = {
mal_backend_wasapi,
mal_backend_dsound,
mal_backend_winmm,
mal_backend_alsa,
mal_backend_pulseaudio,
mal_backend_jack,
mal_backend_oss,
mal_backend_opensl,
mal_backend_openal,
mal_backend_sdl,
mal_backend_null
};
mal_result mal_context_init(const mal_backend backends[], mal_uint32 backendCount, const mal_context_config* pConfig, mal_context* pContext)
{
if (pContext == NULL) return MAL_INVALID_ARGS;
mal_zero_object(pContext);
@@ -11945,23 +11959,9 @@ mal_result mal_context_init(mal_backend backends[], mal_uint32 backendCount, con
return result;
}
static mal_backend defaultBackends[] = {
mal_backend_wasapi,
mal_backend_dsound,
mal_backend_winmm,
mal_backend_alsa,
mal_backend_pulseaudio,
mal_backend_jack,
mal_backend_oss,
mal_backend_opensl,
mal_backend_openal,
mal_backend_sdl,
mal_backend_null
};
if (backends == NULL) {
backends = defaultBackends;
backendCount = mal_countof(defaultBackends);
backends = g_malDefaultBackends;
backendCount = mal_countof(g_malDefaultBackends);
}
mal_assert(backends != NULL);
@@ -12466,22 +12466,33 @@ mal_result mal_device_init(mal_context* pContext, mal_device_type type, mal_devi
return MAL_SUCCESS;
}
mal_result mal_device_init_ex(mal_backend backends[], mal_uint32 backendCount, const mal_context_config* pContextConfig, mal_device_type type, mal_device_id* pDeviceID, const mal_device_config* pConfig, void* pUserData, mal_device* pDevice)
mal_result mal_device_init_ex(const mal_backend backends[], mal_uint32 backendCount, const mal_context_config* pContextConfig, mal_device_type type, mal_device_id* pDeviceID, const mal_device_config* pConfig, void* pUserData, mal_device* pDevice)
{
mal_context* pContext = (mal_context*)mal_malloc(sizeof(*pContext));
if (pContext == NULL) {
return MAL_OUT_OF_MEMORY;
}
mal_result result = mal_context_init(backends, backendCount, pContextConfig, pContext);
if (result != MAL_SUCCESS) {
mal_free(pContext);
return result;
if (backends == NULL) {
backends = g_malDefaultBackends;
backendCount = mal_countof(g_malDefaultBackends);
}
mal_result result = MAL_NO_BACKEND;
for (mal_uint32 iBackend = 0; iBackend < backendCount; ++iBackend) {
result = mal_context_init(&backends[iBackend], 1, pContextConfig, pContext);
if (result == MAL_SUCCESS) {
result = mal_device_init(pContext, type, pDeviceID, pConfig, pUserData, pDevice);
if (result == MAL_SUCCESS) {
break; // Success.
} else {
mal_context_uninit(pContext); // Failure.
}
}
}
result = mal_device_init(pContext, type, pDeviceID, pConfig, pUserData, pDevice);
if (result != MAL_SUCCESS) {
mal_context_uninit(pContext);
mal_free(pContext);
return result;
}
@@ -15596,6 +15607,8 @@ void mal_pcm_f32_to_s32(int* pOut, const float* pIn, unsigned int count)
// - Add support for JACK.
// - Remove dependency on asound.h for the ALSA backend. This means the ALSA development packages are no
// longer required to build mini_al.
// - Make mal_device_init_ex() more robust.
// - Make some APIs more const-correct.
// - Fix errors with OpenAL detection.
// - Fix some memory leaks.
// - Miscellaneous bug fixes.