d2d1: Implement d2d_effect_GetInputCount().

Signed-off-by: Ziqing Hui <zhui@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dlls/d2d1/d2d1_private.h

@@ -572,9 +572,12 @@ struct d2d_effect
     LONG refcount;
 
     ID2D1Factory *factory;
+    ID2D1Image **inputs;
+    size_t inputs_size;
+    size_t input_count;
 };
 
-void d2d_effect_init(struct d2d_effect *effect, ID2D1Factory *factory) DECLSPEC_HIDDEN;
+HRESULT d2d_effect_init(struct d2d_effect *effect, ID2D1Factory *factory) DECLSPEC_HIDDEN;
 
 static inline BOOL d2d_array_reserve(void **elements, size_t *capacity, size_t count, size_t size)
 {

dlls/d2d1/device.c

@@ -1887,13 +1887,19 @@ static HRESULT STDMETHODCALLTYPE d2d_device_context_CreateEffect(ID2D1DeviceCont
 {
     struct d2d_device_context *context = impl_from_ID2D1DeviceContext(iface);
     struct d2d_effect *object;
+    HRESULT hr;
 
     FIXME("iface %p, effect_id %s, effect %p stub!\n", iface, debugstr_guid(effect_id), effect);
 
     if (!(object = heap_alloc_zero(sizeof(*object))))
         return E_OUTOFMEMORY;
 
-    d2d_effect_init(object, context->factory);
+    if (FAILED(hr = d2d_effect_init(object, context->factory)))
+    {
+        WARN("Failed to initialize effect, hr %#x.\n", hr);
+        heap_free(object);
+        return hr;
+    }
 
     TRACE("Created effect %p.\n", object);
     *effect = &object->ID2D1Effect_iface;

dlls/d2d1/effect.c

@@ -25,6 +25,12 @@ static inline struct d2d_effect *impl_from_ID2D1Effect(ID2D1Effect *iface)
     return CONTAINING_RECORD(iface, struct d2d_effect, ID2D1Effect_iface);
 }
 
+static void d2d_effect_cleanup(struct d2d_effect *effect)
+{
+    heap_free(effect->inputs);
+    ID2D1Factory_Release(effect->factory);
+}
+
 static HRESULT STDMETHODCALLTYPE d2d_effect_QueryInterface(ID2D1Effect *iface, REFIID iid, void **out)
 {
     struct d2d_effect *effect = impl_from_ID2D1Effect(iface);
@@ -72,7 +78,7 @@ static ULONG STDMETHODCALLTYPE d2d_effect_Release(ID2D1Effect *iface)
 
     if (!refcount)
     {
-        ID2D1Factory_Release(effect->factory);
+        d2d_effect_cleanup(effect);
         heap_free(effect);
     }
 
@@ -183,9 +189,11 @@ static void STDMETHODCALLTYPE d2d_effect_GetInput(ID2D1Effect *iface, UINT32 ind
 
 static UINT32 STDMETHODCALLTYPE d2d_effect_GetInputCount(ID2D1Effect *iface)
 {
-    FIXME("iface %p stub!\n", iface);
+    struct d2d_effect *effect = impl_from_ID2D1Effect(iface);
 
-    return 0;
+    TRACE("iface %p.\n", iface);
+
+    return effect->input_count;
 }
 
 static void STDMETHODCALLTYPE d2d_effect_GetOutput(ID2D1Effect *iface, ID2D1Image **output)
@@ -269,10 +277,19 @@ static const ID2D1ImageVtbl d2d_effect_image_vtbl =
     d2d_effect_image_GetFactory,
 };
 
-void d2d_effect_init(struct d2d_effect *effect, ID2D1Factory *factory)
+HRESULT d2d_effect_init(struct d2d_effect *effect, ID2D1Factory *factory)
 {
     effect->ID2D1Effect_iface.lpVtbl = &d2d_effect_vtbl;
     effect->ID2D1Image_iface.lpVtbl = &d2d_effect_image_vtbl;
     effect->refcount = 1;
+
+    effect->input_count = 1;
+    if (!d2d_array_reserve((void **)&effect->inputs, &effect->inputs_size,
+            effect->input_count, sizeof(*effect->inputs)))
+        return E_OUTOFMEMORY;
+    memset(effect->inputs, 0, sizeof(*effect->inputs) * effect->input_count);
+
     ID2D1Factory_AddRef(effect->factory = factory);
+
+    return S_OK;
 }

dlls/d2d1/tests/d2d1.c

@@ -9802,7 +9802,7 @@ static void test_effect(BOOL d3d11)
         }
 
         input_count = ID2D1Effect_GetInputCount(effect);
-        todo_wine
+        todo_wine_if(test->default_input_count != 1)
         ok (input_count == test->default_input_count, "Got unexpected input count %u, expected %u.\n",
                 input_count, test->default_input_count);