Create and use a backend wrapper for capture

3 files changed, 139 insertions, 40 deletions

diff --git a/Alc/ALc.c b/Alc/ALc.c
index 7efebaa2..a80863bc 100644
--- a/Alc/ALc.c
+++ b/Alc/ALc.c
@@ -1909,10 +1909,7 @@ static ALCvoid FreeDevice(ALCdevice *device)
 {
     TRACE("%p\n", device);
 
-    if(device->Type != Capture)
-        VCALL0(device->Backend,close)();
-    else
-        ALCdevice_CloseCapture(device);
+    VCALL0(device->Backend,close)();
     DELETE_OBJ(device->Backend);
     device->Backend = NULL;
 
@@ -2405,7 +2402,7 @@ ALC_API ALCvoid ALC_APIENTRY alcGetIntegerv(ALCdevice *device,ALCenum param,ALsi
         {
             case ALC_CAPTURE_SAMPLES:
                 ALCdevice_Lock(device);
-                *data = ALCdevice_AvailableSamples(device);
+                *data = VCALL0(device->Backend,availableSamples)();
                 ALCdevice_Unlock(device);
                 break;
 
@@ -2890,7 +2887,7 @@ ALC_API ALCdevice* ALC_APIENTRY alcOpenDevice(const ALCchar *deviceName)
     device->UpdateSize = 1024;
 
     if(!PlaybackBackend.getFactory)
-        device->Backend = create_backend_wrapper(device);
+        device->Backend = create_backend_wrapper(device, ALCbackend_Playback);
     else
     {
         ALCbackendFactory *factory = PlaybackBackend.getFactory();
@@ -3156,7 +3153,7 @@ ALC_API ALCdevice* ALC_APIENTRY alcCaptureOpenDevice(const ALCchar *deviceName,
 
     device->DeviceName = NULL;
 
-    device->Backend = create_backend_wrapper(device);
+    device->Backend = create_backend_wrapper(device, ALCbackend_Capture);
     if(!device->Backend)
     {
         al_free(device);
@@ -3178,7 +3175,7 @@ ALC_API ALCdevice* ALC_APIENTRY alcCaptureOpenDevice(const ALCchar *deviceName,
     device->UpdateSize = samples;
     device->NumUpdates = 1;
 
-    if((err=ALCdevice_OpenCapture(device, deviceName)) != ALC_NO_ERROR)
+    if((err=VCALL(device->Backend,open)(deviceName)) != ALC_NO_ERROR)
     {
         al_free(device);
         alcSetError(NULL, err);
@@ -3227,7 +3224,7 @@ ALC_API void ALC_APIENTRY alcCaptureStart(ALCdevice *device)
         if(device->Connected)
         {
             if(!(device->Flags&DEVICE_RUNNING))
-                ALCdevice_StartCapture(device);
+                VCALL0(device->Backend,start)();
             device->Flags |= DEVICE_RUNNING;
         }
         ALCdevice_Unlock(device);
@@ -3244,7 +3241,7 @@ ALC_API void ALC_APIENTRY alcCaptureStop(ALCdevice *device)
     {
         ALCdevice_Lock(device);
         if((device->Flags&DEVICE_RUNNING))
-            ALCdevice_StopCapture(device);
+            VCALL0(device->Backend,stop)();
         device->Flags &= ~DEVICE_RUNNING;
         ALCdevice_Unlock(device);
     }
@@ -3261,8 +3258,8 @@ ALC_API void ALC_APIENTRY alcCaptureSamples(ALCdevice *device, ALCvoid *buffer,
         ALCenum err = ALC_INVALID_VALUE;
 
         ALCdevice_Lock(device);
-        if(samples >= 0 && ALCdevice_AvailableSamples(device) >= (ALCuint)samples)
-            err = ALCdevice_CaptureSamples(device, buffer, samples);
+        if(samples >= 0 && VCALL0(device->Backend,availableSamples)() >= (ALCuint)samples)
+            err = VCALL(device->Backend,captureSamples)(buffer, samples);
         ALCdevice_Unlock(device);
 
         if(err != ALC_NO_ERROR)
@@ -3322,7 +3319,7 @@ ALC_API ALCdevice* ALC_APIENTRY alcLoopbackOpenDeviceSOFT(const ALCchar *deviceN
     InitUIntMap(&device->EffectMap, ~0);
     InitUIntMap(&device->FilterMap, ~0);
 
-    device->Backend = create_backend_wrapper(device);
+    device->Backend = create_backend_wrapper(device, ALCbackend_Playback);
     if(!device->Backend)
     {
         al_free(device);
diff --git a/Alc/backends/base.c b/Alc/backends/base.c
index 8837b0c8..22744ab7 100644
--- a/Alc/backends/base.c
+++ b/Alc/backends/base.c
@@ -36,97 +36,198 @@ void ALCbackend_unlock(ALCbackend *self)
 }
 
 
-/* Wrapper to use an old-style backend with the new interface. */
-typedef struct BackendWrapper {
+/* Wrappers to use an old-style backend with the new interface. */
+typedef struct PlaybackWrapper {
     DERIVE_FROM_TYPE(ALCbackend);
-} BackendWrapper;
-#define BACKENDWRAPPER_INITIALIZER { { GET_VTABLE2(ALCbackend, BackendWrapper) } }
+} PlaybackWrapper;
+#define PLAYBACKWRAPPER_INITIALIZER { { GET_VTABLE2(ALCbackend, PlaybackWrapper) } }
 
-static void BackendWrapper_Construct(BackendWrapper *self, ALCdevice *device)
+static void PlaybackWrapper_Construct(PlaybackWrapper *self, ALCdevice *device)
 {
     ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device);
 }
 
-static void BackendWrapper_Destruct(BackendWrapper *self)
+static void PlaybackWrapper_Destruct(PlaybackWrapper *self)
 {
     ALCbackend_Destruct(STATIC_CAST(ALCbackend, self));
 }
 
-static ALCenum BackendWrapper_open(BackendWrapper *self, const ALCchar *name)
+static ALCenum PlaybackWrapper_open(PlaybackWrapper *self, const ALCchar *name)
 {
     ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
     return device->Funcs->OpenPlayback(device, name);
 }
 
-static void BackendWrapper_close(BackendWrapper *self)
+static void PlaybackWrapper_close(PlaybackWrapper *self)
 {
     ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
     device->Funcs->ClosePlayback(device);
 }
 
-static ALCboolean BackendWrapper_reset(BackendWrapper *self)
+static ALCboolean PlaybackWrapper_reset(PlaybackWrapper *self)
 {
     ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
     return device->Funcs->ResetPlayback(device);
 }
 
-static ALCboolean BackendWrapper_start(BackendWrapper *self)
+static ALCboolean PlaybackWrapper_start(PlaybackWrapper *self)
 {
     ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
     return device->Funcs->StartPlayback(device);
 }
 
-static void BackendWrapper_stop(BackendWrapper *self)
+static void PlaybackWrapper_stop(PlaybackWrapper *self)
 {
     ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
     device->Funcs->StopPlayback(device);
 }
 
-ALCenum BackendWrapper_captureSamples(BackendWrapper* UNUSED(self), void* UNUSED(buffer), ALCuint UNUSED(samples))
+ALCenum PlaybackWrapper_captureSamples(PlaybackWrapper* UNUSED(self), void* UNUSED(buffer), ALCuint UNUSED(samples))
 {
     return ALC_INVALID_VALUE;
 }
 
-ALCuint BackendWrapper_availableSamples(BackendWrapper* UNUSED(self))
+ALCuint PlaybackWrapper_availableSamples(PlaybackWrapper* UNUSED(self))
 {
     return 0;
 }
 
-static ALint64 BackendWrapper_getLatency(BackendWrapper *self)
+static ALint64 PlaybackWrapper_getLatency(PlaybackWrapper *self)
 {
     ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
     return device->Funcs->GetLatency(device);
 }
 
-static void BackendWrapper_lock(BackendWrapper *self)
+static void PlaybackWrapper_lock(PlaybackWrapper *self)
 {
     ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
     return device->Funcs->Lock(device);
 }
 
-static void BackendWrapper_unlock(BackendWrapper *self)
+static void PlaybackWrapper_unlock(PlaybackWrapper *self)
 {
     ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
     return device->Funcs->Unlock(device);
 }
 
-static void BackendWrapper_Delete(BackendWrapper *self)
+static void PlaybackWrapper_Delete(PlaybackWrapper *self)
 {
     free(self);
 }
 
-DEFINE_ALCBACKEND_VTABLE(BackendWrapper);
+DEFINE_ALCBACKEND_VTABLE(PlaybackWrapper);
 
 
-ALCbackend *create_backend_wrapper(ALCdevice *device)
+typedef struct CaptureWrapper {
+    DERIVE_FROM_TYPE(ALCbackend);
+} CaptureWrapper;
+#define CAPTUREWRAPPER_INITIALIZER { { GET_VTABLE2(ALCbackend, PlaybackWrapper) } }
+
+static void CaptureWrapper_Construct(CaptureWrapper *self, ALCdevice *device)
+{
+    ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device);
+}
+
+static void CaptureWrapper_Destruct(CaptureWrapper *self)
+{
+    ALCbackend_Destruct(STATIC_CAST(ALCbackend, self));
+}
+
+static ALCenum CaptureWrapper_open(CaptureWrapper *self, const ALCchar *name)
+{
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+    return device->Funcs->OpenCapture(device, name);
+}
+
+static void CaptureWrapper_close(CaptureWrapper *self)
+{
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+    device->Funcs->CloseCapture(device);
+}
+
+static ALCboolean CaptureWrapper_reset(CaptureWrapper* UNUSED(self))
+{
+    return ALC_FALSE;
+}
+
+static ALCboolean CaptureWrapper_start(CaptureWrapper *self)
+{
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+    device->Funcs->StartCapture(device);
+    return ALC_TRUE;
+}
+
+static void CaptureWrapper_stop(CaptureWrapper *self)
+{
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+    device->Funcs->StopCapture(device);
+}
+
+ALCenum CaptureWrapper_captureSamples(CaptureWrapper *self, void *buffer, ALCuint samples)
 {
-    BackendWrapper *backend;
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+    return device->Funcs->CaptureSamples(device, buffer, samples);
+}
+
+ALCuint CaptureWrapper_availableSamples(CaptureWrapper *self)
+{
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+    return device->Funcs->AvailableSamples(device);
+}
+
+static ALint64 CaptureWrapper_getLatency(CaptureWrapper *self)
+{
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+    return device->Funcs->GetLatency(device);
+}
+
+static void CaptureWrapper_lock(CaptureWrapper *self)
+{
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+    return device->Funcs->Lock(device);
+}
+
+static void CaptureWrapper_unlock(CaptureWrapper *self)
+{
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+    return device->Funcs->Unlock(device);
+}
+
+static void CaptureWrapper_Delete(CaptureWrapper *self)
+{
+    free(self);
+}
+
+DEFINE_ALCBACKEND_VTABLE(CaptureWrapper);
+
+
+ALCbackend *create_backend_wrapper(ALCdevice *device, ALCbackend_Type type)
+{
+    if(type == ALCbackend_Playback)
+    {
+        PlaybackWrapper *backend;
+
+        backend = malloc(sizeof(*backend));
+        if(!backend) return NULL;
+        SET_VTABLE2(PlaybackWrapper, ALCbackend, backend);
+
+        PlaybackWrapper_Construct(backend, device);
+
+        return STATIC_CAST(ALCbackend, backend);
+    }
+
+    if(type == ALCbackend_Capture)
+    {
+        CaptureWrapper *backend;
+
+        backend = malloc(sizeof(*backend));
+        if(!backend) return NULL;
+        SET_VTABLE2(CaptureWrapper, ALCbackend, backend);
 
-    backend = malloc(sizeof(*backend));
-    if(!backend) return NULL;
-    SET_VTABLE2(BackendWrapper, ALCbackend, backend);
+        CaptureWrapper_Construct(backend, device);
 
-    BackendWrapper_Construct(backend, device);
+        return STATIC_CAST(ALCbackend, backend);
+    }
 
-    return STATIC_CAST(ALCbackend, backend);
+    return NULL;
 }
diff --git a/Alc/backends/base.h b/Alc/backends/base.h
index 9ba33097..ed0fff50 100644
--- a/Alc/backends/base.h
+++ b/Alc/backends/base.h
@@ -87,7 +87,8 @@ static const struct ALCbackendVtable T##_ALCbackend_vtable = {                \
 
 
 typedef enum ALCbackend_Type {
-    ALCbackend_Playback
+    ALCbackend_Playback,
+    ALCbackend_Capture
 } ALCbackend_Type;
 
 
@@ -131,6 +132,6 @@ static const struct ALCbackendFactoryVtable T##_ALCbackendFactory_vtable = {  \
 
 ALCbackendFactory *ALCnullBackendFactory_getFactory(void);
 
-ALCbackend *create_backend_wrapper(ALCdevice *device);
+ALCbackend *create_backend_wrapper(ALCdevice *device, ALCbackend_Type type);
 
 #endif /* AL_BACKENDS_BASE_H */