[PATCH v3 1/2] dsdmo: Add Distortion effect stub.

[Vijay Kiran Kamuju]

From: Vijay Kiran Kamuju

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55978
---
 dlls/dsdmo/dsdmo.idl     |  8 ++++
 dlls/dsdmo/main.c        | 95 ++++++++++++++++++++++++++++++++++++++++
 dlls/dsdmo/tests/dsdmo.c |  8 ++--
 3 files changed, 108 insertions(+), 3 deletions(-)

diff --git a/dlls/dsdmo/dsdmo.idl b/dlls/dsdmo/dsdmo.idl
index 30c54d0f889..df76ac15e96 100644
--- a/dlls/dsdmo/dsdmo.idl
+++ b/dlls/dsdmo/dsdmo.idl
@@ -73,3 +73,11 @@ coclass DirectSoundChorusDMO {}
     vi_progid("Microsoft.DirectSoundFlangerDMO")
 ]
 coclass DirectSoundFlangerDMO {}
+
+[
+    uuid(ef114c90-cd1d-484e-96e5-09cfaf912a21),
+    threading(both),
+    progid("Microsoft.DirectSoundDistortionDMO.1"),
+    vi_progid("Microsoft.DirectSoundDistortionDMO")
+]
+coclass DirectSoundDistortionDMO {}
diff --git a/dlls/dsdmo/main.c b/dlls/dsdmo/main.c
index 769f040c790..5c667816d81 100644
--- a/dlls/dsdmo/main.c
+++ b/dlls/dsdmo/main.c
@@ -1339,6 +1339,100 @@ static HRESULT flanger_create(IUnknown *outer, IUnknown **out)
     return S_OK;
 }

+struct distortion
+{
+    struct effect effect;
+    IDirectSoundFXDistortion IDirectSoundFXDistortion_iface;
+};
+
+static inline struct distortion *impl_from_IDirectSoundFXDistortion(IDirectSoundFXDistortion *iface)
+{
+    return CONTAINING_RECORD(iface, struct distortion, IDirectSoundFXDistortion_iface);
+}
+
+static HRESULT WINAPI distortion_QueryInterface(IDirectSoundFXDistortion *iface, REFIID iid, void **out)
+{
+    struct distortion *effect = impl_from_IDirectSoundFXDistortion(iface);
+    return IUnknown_QueryInterface(effect->effect.outer_unk, iid, out);
+}
+
+static ULONG WINAPI distortion_AddRef(IDirectSoundFXDistortion *iface)
+{
+    struct distortion *effect = impl_from_IDirectSoundFXDistortion(iface);
+    return IUnknown_AddRef(effect->effect.outer_unk);
+}
+
+static ULONG WINAPI distortion_Release(IDirectSoundFXDistortion *iface)
+{
+    struct distortion *effect = impl_from_IDirectSoundFXDistortion(iface);
+    return IUnknown_Release(effect->effect.outer_unk);
+}
+
+static HRESULT WINAPI distortion_SetAllParameters(IDirectSoundFXDistortion *iface, const DSFXDistortion *params)
+{
+    struct distortion *This = impl_from_IDirectSoundFXDistortion(iface);
+    FIXME("(%p) %p\n", This, params);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI distortion_GetAllParameters(IDirectSoundFXDistortion *iface, DSFXDistortion *params)
+{
+    struct distortion *This = impl_from_IDirectSoundFXDistortion(iface);
+    FIXME("(%p) %p\n", This, params);
+    return E_NOTIMPL;
+}
+
+static const struct IDirectSoundFXDistortionVtbl distortion_vtbl =
+{
+    distortion_QueryInterface,
+    distortion_AddRef,
+    distortion_Release,
+    distortion_SetAllParameters,
+    distortion_GetAllParameters
+};
+
+static struct distortion *impl_distortion_from_effect(struct effect *iface)
+{
+    return CONTAINING_RECORD(iface, struct distortion, effect);
+}
+
+static void *distortion_query_interface(struct effect *iface, REFIID iid)
+{
+    struct distortion *effect = impl_distortion_from_effect(iface);
+
+    if (IsEqualGUID(iid, &IID_IDirectSoundFXDistortion))
+        return &effect->IDirectSoundFXDistortion_iface;
+    return NULL;
+}
+
+static void distortion_destroy(struct effect *iface)
+{
+    struct distortion *effect = impl_distortion_from_effect(iface);
+
+    free(effect);
+}
+
+static const struct effect_ops distortion_ops =
+{
+    .destroy = distortion_destroy,
+    .query_interface = distortion_query_interface,
+};
+
+static HRESULT distortion_create(IUnknown *outer, IUnknown **out)
+{
+    struct distortion *object;
+
+    if (!(object = calloc(1, sizeof(*object))))
+        return E_OUTOFMEMORY;
+
+    effect_init(&object->effect, outer, &distortion_ops);
+    object->IDirectSoundFXDistortion_iface.lpVtbl = &distortion_vtbl;
+
+    TRACE("Created distortion effect %p.\n", object);
+    *out = &object->effect.IUnknown_inner;
+    return S_OK;
+}
+
 struct class_factory
 {
     IClassFactory IClassFactory_iface;
@@ -1427,6 +1521,7 @@ class_factories[] =
     {&GUID_DSFX_STANDARD_COMPRESSOR,    {{&class_factory_vtbl}, compressor_create}},
     {&GUID_DSFX_STANDARD_CHORUS,        {{&class_factory_vtbl}, chorus_create}},
     {&GUID_DSFX_STANDARD_FLANGER,       {{&class_factory_vtbl}, flanger_create}},
+    {&GUID_DSFX_STANDARD_DISTORTION,    {{&class_factory_vtbl}, distortion_create}},
 };

HRESULT WINAPI DllGetClassObject(REFCLSID clsid, REFIID iid, void **out)
diff --git a/dlls/dsdmo/tests/dsdmo.c b/dlls/dsdmo/tests/dsdmo.c
index 369e02aeaa4..a3eb5a7d864 100644
--- a/dlls/dsdmo/tests/dsdmo.c
+++ b/dlls/dsdmo/tests/dsdmo.c
@@ -363,12 +363,14 @@ static void test_distortion_parameters(void)

hr = CoCreateInstance(&GUID_DSFX_STANDARD_DISTORTION, NULL, CLSCTX_INPROC_SERVER,
             &IID_IDirectSoundFXDistortion, (void **)&distortion);
-    todo_wine ok(hr == S_OK, "Got hr %#lx.\n", hr);
+    ok(hr == S_OK, "Got hr %#lx.\n", hr);
     if (hr != S_OK)
         return;

hr = IDirectSoundFXDistortion_GetAllParameters(distortion, &params);
-    ok(hr == S_OK, "Got hr %#lx.\n", hr);
+    todo_wine ok(hr == S_OK, "Got hr %#lx.\n", hr);
+    if (hr != S_OK)
+        return;
     ok(params.fGain == -18.0f, "Got gain %.8e dB.\n", params.fGain);
     ok(params.fEdge == 15.0f, "Got edge %.8e%%.\n", params.fEdge);
     ok(params.fPostEQCenterFrequency == 2400.0f, "Got center frequency %.8e Hz.\n", params.fPostEQCenterFrequency);
@@ -552,7 +554,7 @@ START_TEST(dsdmo)
     {
         {&GUID_DSFX_STANDARD_CHORUS,        &IID_IDirectSoundFXChorus},
         {&GUID_DSFX_STANDARD_COMPRESSOR,    &IID_IDirectSoundFXCompressor},
-        {&GUID_DSFX_STANDARD_DISTORTION,    &IID_IDirectSoundFXDistortion, TRUE},
+        {&GUID_DSFX_STANDARD_DISTORTION,    &IID_IDirectSoundFXDistortion},
         {&GUID_DSFX_STANDARD_ECHO,          &IID_IDirectSoundFXEcho},
         {&GUID_DSFX_STANDARD_FLANGER,       &IID_IDirectSoundFXFlanger},
         {&GUID_DSFX_STANDARD_GARGLE,        &IID_IDirectSoundFXGargle, TRUE},