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Win32: Simplify use of COM.

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This commit is contained in:
David Reid
2016-12-29 23:44:52 +10:00
parent dd0554be0e
commit d568fe547a
1 changed files with 12 additions and 21 deletions
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mini_al.h
+12 -21
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@@ -369,7 +369,6 @@ typedef struct
struct
{
/*IMMDeviceEnumerator**/ mal_ptr pDeviceEnumerator;
mal_bool32 needCoUninit; // Whether or not COM needs to be uninitialized.
} wasapi;
struct
@@ -513,7 +512,6 @@ struct mal_device
/*IAudioRenderClient */ mal_ptr pRenderClient;
/*IAudioCaptureClient */ mal_ptr pCaptureClient;
/*HANDLE*/ mal_handle hStopEvent;
mal_bool32 needCoUninit; // Whether or not COM needs to be uninitialized.
mal_bool32 breakFromMainLoop;
} wasapi;
@@ -1805,17 +1803,10 @@ const IID g_malIID_IAudioCaptureClient_Instance = {0xC8ADBD64, 0xE71E, 0x48A0,
mal_result mal_context_init__wasapi(mal_context* pContext)
{
mal_assert(pContext != NULL);
pContext->wasapi.needCoUninit = MAL_FALSE;
HRESULT hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
if (hr == S_OK || hr == S_FALSE) {
pContext->wasapi.needCoUninit = MAL_TRUE;
}
// Validate the WASAPI is available by grabbing an MMDeviceEnumerator object.
hr = CoCreateInstance(g_malCLSID_MMDeviceEnumerator, NULL, CLSCTX_ALL, g_malIID_IMMDeviceEnumerator, (void**)&pContext->wasapi.pDeviceEnumerator);
HRESULT hr = CoCreateInstance(g_malCLSID_MMDeviceEnumerator, NULL, CLSCTX_ALL, g_malIID_IMMDeviceEnumerator, (void**)&pContext->wasapi.pDeviceEnumerator);
if (FAILED(hr)) {
if (pContext->wasapi.needCoUninit) CoUninitialize();
return MAL_NO_BACKEND;
}
@@ -1835,10 +1826,6 @@ mal_result mal_context_uninit__wasapi(mal_context* pContext)
#endif
}
if (pContext->wasapi.needCoUninit) {
CoUninitialize();
}
return MAL_SUCCESS;
}
@@ -1993,13 +1980,8 @@ static mal_result mal_device_init__wasapi(mal_context* pContext, mal_device_type
mal_assert(pDevice != NULL);
mal_zero_object(&pDevice->wasapi);
HRESULT hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
if (hr == S_OK || hr == S_FALSE) {
pDevice->wasapi.needCoUninit = MAL_TRUE;
}
IMMDeviceEnumerator* pDeviceEnumerator;
hr = CoCreateInstance(g_malCLSID_MMDeviceEnumerator, NULL, CLSCTX_ALL, g_malIID_IMMDeviceEnumerator, (void**)&pDeviceEnumerator);
HRESULT hr = CoCreateInstance(g_malCLSID_MMDeviceEnumerator, NULL, CLSCTX_ALL, g_malIID_IMMDeviceEnumerator, (void**)&pDeviceEnumerator);
if (FAILED(hr)) {
mal_device_uninit__wasapi(pDevice);
return mal_post_error(pDevice, "[WASAPI] Failed to create IMMDeviceEnumerator.", MAL_WASAPI_FAILED_TO_CREATE_DEVICE_ENUMERATOR);
@@ -4837,12 +4819,17 @@ mal_result mal_context_init(mal_backend backends[], mal_uint32 backendCount, mal
if (pContext == NULL) return MAL_INVALID_ARGS;
mal_zero_object(pContext);
// Keep it simple and always initialize COM.
#ifdef MAL_WIN32
CoInitializeEx(NULL, COINIT_MULTITHREADED);
#endif
static mal_backend defaultBackends[] = {
mal_backend_openal, // TODO: Move this below all platform-specific backends.
mal_backend_dsound,
mal_backend_wasapi,
mal_backend_alsa,
mal_backend_sles,
mal_backend_openal,
mal_backend_null
};
@@ -4971,6 +4958,10 @@ mal_result mal_context_uninit(mal_context* pContext)
default: break;
}
#ifdef MAL_WIN32
CoUninitialize();
#endif
mal_assert(MAL_FALSE);
return MAL_NO_BACKEND;
}