diff options
Diffstat (limited to 'Alc')
| -rw-r--r-- | Alc/ALc.c | 110 |
1 files changed, 100 insertions, 10 deletions
@@ -38,10 +38,20 @@ #include "bs2b.h" #include "alu.h" +#include "backends/base.h" + /************************************************ * Backends ************************************************/ +struct BackendInfo { + const char *name; + ALCboolean (*Init)(BackendFuncs*); + void (*Deinit)(void); + void (*Probe)(enum DevProbe); + BackendFuncs Funcs; +}; + #define EmptyFuncs { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL } static struct BackendInfo BackendList[] = { #ifdef HAVE_PULSEAUDIO @@ -96,6 +106,77 @@ static struct BackendInfo BackendLoopback = { static struct BackendInfo PlaybackBackend; static struct BackendInfo CaptureBackend; + +/* Wrapper to use an old-style backend with the new interface. */ +typedef struct BackendWrapper { + DERIVE_FROM_TYPE(ALCbackend); + + ALCdevice *mDevice; +} BackendWrapper; +#define BACKENDWRAPPER_INITIALIZER { { GET_VTABLE2(ALCbackend, BackendWrapper) }, NULL } + +static void BackendWrapper_Destruct(BackendWrapper* UNUSED(self)) +{ +} + +static ALCenum BackendWrapper_open(BackendWrapper *self, const ALCchar *name) +{ + ALCdevice *device = self->mDevice; + return device->Funcs->OpenPlayback(device, name); +} + +static void BackendWrapper_close(BackendWrapper *self) +{ + ALCdevice *device = self->mDevice; + device->Funcs->ClosePlayback(device); +} + +static ALCboolean BackendWrapper_reset(BackendWrapper *self) +{ + ALCdevice *device = self->mDevice; + return device->Funcs->ResetPlayback(device); +} + +static ALCboolean BackendWrapper_start(BackendWrapper *self) +{ + ALCdevice *device = self->mDevice; + return device->Funcs->StartPlayback(device); +} + +static void BackendWrapper_stop(BackendWrapper *self) +{ + ALCdevice *device = self->mDevice; + device->Funcs->StopPlayback(device); +} + +static ALint64 BackendWrapper_getLatency(BackendWrapper *self) +{ + ALCdevice *device = self->mDevice; + return device->Funcs->GetLatency(device); +} + +static void BackendWrapper_Delete(BackendWrapper *self) +{ + free(self); +} + +DEFINE_ALCBACKEND_VTABLE(BackendWrapper); + + +ALCbackend *create_backend_wrapper(ALCdevice *device) +{ + BackendWrapper *backend; + + backend = malloc(sizeof(*backend)); + if(!backend) return NULL; + SET_VTABLE2(BackendWrapper, ALCbackend, backend); + + backend->mDevice = device; + + return STATIC_CAST(ALCbackend, backend); +} + + /************************************************ * Functions, enums, and errors ************************************************/ @@ -1335,6 +1416,11 @@ ALint64 ALCdevice_GetLatencyDefault(ALCdevice *UNUSED(device)) return 0; } +ALint64 alcGetLatency(ALCdevice *device) +{ + return VCALL0(device->Backend,getLatency,()); +} + /* SetDefaultWFXChannelOrder * * Sets the default channel order used by WaveFormatEx. @@ -1561,7 +1647,7 @@ static ALCenum UpdateDeviceParams(ALCdevice *device, const ALCint *attrList) numSends = minu(MAX_SENDS, numSends); if((device->Flags&DEVICE_RUNNING)) - ALCdevice_StopPlayback(device); + VCALL0(device->Backend,stop,()); device->Flags &= ~DEVICE_RUNNING; device->Frequency = freq; @@ -1579,7 +1665,7 @@ static ALCenum UpdateDeviceParams(ALCdevice *device, const ALCint *attrList) /* If a context is already running on the device, stop playback so the * device attributes can be updated. */ if((device->Flags&DEVICE_RUNNING)) - ALCdevice_StopPlayback(device); + VCALL0(device->Backend,close,()); device->Flags &= ~DEVICE_RUNNING; freq = device->Frequency; @@ -1664,7 +1750,7 @@ static ALCenum UpdateDeviceParams(ALCdevice *device, const ALCint *attrList) DEVICE_FREQUENCY_REQUEST; } - if(ALCdevice_ResetPlayback(device) == ALC_FALSE) + if(VCALL0(device->Backend,reset,()) == ALC_FALSE) return ALC_INVALID_DEVICE; if(device->FmtChans != oldChans && (device->Flags&DEVICE_CHANNELS_REQUEST)) @@ -1804,7 +1890,7 @@ static ALCenum UpdateDeviceParams(ALCdevice *device, const ALCint *attrList) ALCdevice_Unlock(device); RestoreFPUMode(&oldMode); - if(ALCdevice_StartPlayback(device) == ALC_FALSE) + if(VCALL0(device->Backend,start,()) == ALC_FALSE) return ALC_INVALID_DEVICE; device->Flags |= DEVICE_RUNNING; @@ -1821,7 +1907,7 @@ static ALCvoid FreeDevice(ALCdevice *device) TRACE("%p\n", device); if(device->Type != Capture) - ALCdevice_ClosePlayback(device); + VCALL0(device->Backend,close,()); else ALCdevice_CloseCapture(device); @@ -2596,7 +2682,7 @@ ALC_API ALCcontext* ALC_APIENTRY alcCreateContext(ALCdevice *device, const ALCin { if(!device->ContextList) { - ALCdevice_StopPlayback(device); + VCALL0(device->Backend,stop,()); device->Flags &= ~DEVICE_RUNNING; } UnlockLists(); @@ -2640,7 +2726,7 @@ ALC_API ALCvoid ALC_APIENTRY alcDestroyContext(ALCcontext *context) ReleaseContext(context, Device); if(!Device->ContextList) { - ALCdevice_StopPlayback(Device); + VCALL0(Device->Backend,stop,()); Device->Flags &= ~DEVICE_RUNNING; } } @@ -2801,6 +2887,8 @@ ALC_API ALCdevice* ALC_APIENTRY alcOpenDevice(const ALCchar *deviceName) device->NumUpdates = 4; device->UpdateSize = 1024; + device->Backend = create_backend_wrapper(device); + if(ConfigValueStr(NULL, "channels", &fmt)) { static const struct { @@ -2937,7 +3025,7 @@ ALC_API ALCdevice* ALC_APIENTRY alcOpenDevice(const ALCchar *deviceName) device->NumMonoSources = device->MaxNoOfSources - device->NumStereoSources; // Find a playback device to open - if((err=ALCdevice_OpenPlayback(device, deviceName)) != ALC_NO_ERROR) + if((err=VCALL(device->Backend,open,(deviceName))) != ALC_NO_ERROR) { DeleteCriticalSection(&device->Mutex); al_free(device); @@ -3000,7 +3088,7 @@ ALC_API ALCboolean ALC_APIENTRY alcCloseDevice(ALCdevice *Device) ReleaseContext(ctx, Device); } if((Device->Flags&DEVICE_RUNNING)) - ALCdevice_StopPlayback(Device); + VCALL0(Device->Backend,stop,()); Device->Flags &= ~DEVICE_RUNNING; ALCdevice_DecRef(Device); @@ -3215,6 +3303,8 @@ ALC_API ALCdevice* ALC_APIENTRY alcLoopbackOpenDeviceSOFT(const ALCchar *deviceN InitUIntMap(&device->EffectMap, ~0); InitUIntMap(&device->FilterMap, ~0); + device->Backend = create_backend_wrapper(device); + //Set output format device->NumUpdates = 0; device->UpdateSize = 0; @@ -3236,7 +3326,7 @@ ALC_API ALCdevice* ALC_APIENTRY alcLoopbackOpenDeviceSOFT(const ALCchar *deviceN device->NumMonoSources = device->MaxNoOfSources - device->NumStereoSources; // Open the "backend" - ALCdevice_OpenPlayback(device, "Loopback"); + VCALL(device->Backend,open,("Loopback")); do { device->next = DeviceList; } while(!CompExchangePtr((XchgPtr*)&DeviceList, device->next, device)); |