d3d10core: Only create unique depthstencil state objects.

dlls/d3d10core/d3d10core_private.h

@@ -232,10 +232,12 @@ struct d3d10_depthstencil_state
     ID3D10DepthStencilState ID3D10DepthStencilState_iface;
     LONG refcount;
 
+    struct d3d10_device *device;
     D3D10_DEPTH_STENCIL_DESC desc;
+    struct wine_rb_entry entry;
 };
 
-HRESULT d3d10_depthstencil_state_init(struct d3d10_depthstencil_state *state,
+HRESULT d3d10_depthstencil_state_init(struct d3d10_depthstencil_state *state, struct d3d10_device *device,
         const D3D10_DEPTH_STENCIL_DESC *desc) DECLSPEC_HIDDEN;
 struct d3d10_depthstencil_state *unsafe_impl_from_ID3D10DepthStencilState(
         ID3D10DepthStencilState *iface) DECLSPEC_HIDDEN;
@@ -288,6 +290,7 @@ struct d3d10_device
     struct wined3d_device *wined3d_device;
 
     struct wine_rb_tree blend_states;
+    struct wine_rb_tree depthstencil_states;
     struct wine_rb_tree sampler_states;
 
     struct d3d10_blend_state *blend_state;

dlls/d3d10core/device.c

@@ -82,6 +82,7 @@ static ULONG STDMETHODCALLTYPE d3d10_device_inner_Release(IUnknown *iface)
         if (device->wined3d_device)
             wined3d_device_decref(device->wined3d_device);
         wine_rb_destroy(&device->sampler_states, NULL, NULL);
+        wine_rb_destroy(&device->depthstencil_states, NULL, NULL);
         wine_rb_destroy(&device->blend_states, NULL, NULL);
     }
 
@@ -1430,7 +1431,9 @@ static HRESULT STDMETHODCALLTYPE d3d10_device_CreateBlendState(ID3D10Device *ifa
 static HRESULT STDMETHODCALLTYPE d3d10_device_CreateDepthStencilState(ID3D10Device *iface,
         const D3D10_DEPTH_STENCIL_DESC *desc, ID3D10DepthStencilState **depth_stencil_state)
 {
+    struct d3d10_device *device = impl_from_ID3D10Device(iface);
     struct d3d10_depthstencil_state *object;
+    struct wine_rb_entry *entry;
     HRESULT hr;
 
     TRACE("iface %p, desc %p, depth_stencil_state %p.\n", iface, desc, depth_stencil_state);
@@ -1438,6 +1441,17 @@ static HRESULT STDMETHODCALLTYPE d3d10_device_CreateDepthStencilState(ID3D10Devi
     if (!desc)
         return E_INVALIDARG;
 
+    if ((entry = wine_rb_get(&device->depthstencil_states, desc)))
+    {
+        object = WINE_RB_ENTRY_VALUE(entry, struct d3d10_depthstencil_state, entry);
+
+        TRACE("Returning existing depthstencil state %p.\n", object);
+        *depth_stencil_state = &object->ID3D10DepthStencilState_iface;
+        ID3D10DepthStencilState_AddRef(*depth_stencil_state);
+
+        return S_OK;
+    }
+
     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
     if (!object)
     {
@@ -1445,7 +1459,7 @@ static HRESULT STDMETHODCALLTYPE d3d10_device_CreateDepthStencilState(ID3D10Devi
         return E_OUTOFMEMORY;
     }
 
-    if (FAILED(hr = d3d10_depthstencil_state_init(object, desc)))
+    if (FAILED(hr = d3d10_depthstencil_state_init(object, device, desc)))
     {
         WARN("Failed to initialize depthstencil state, hr %#x.\n", hr);
         HeapFree(GetProcessHeap(), 0, object);
@@ -1987,6 +2001,23 @@ static const struct wine_rb_functions d3d10_blend_state_rb_ops =
     d3d10_blend_state_compare,
 };
 
+static int d3d10_depthstencil_state_compare(const void *key, const struct wine_rb_entry *entry)
+{
+    const D3D10_DEPTH_STENCIL_DESC *ka = key;
+    const D3D10_DEPTH_STENCIL_DESC *kb = &WINE_RB_ENTRY_VALUE(entry,
+            const struct d3d10_depthstencil_state, entry)->desc;
+
+    return memcmp(ka, kb, sizeof(*ka));
+}
+
+static const struct wine_rb_functions d3d10_depthstencil_state_rb_ops =
+{
+    d3d10_rb_alloc,
+    d3d10_rb_realloc,
+    d3d10_rb_free,
+    d3d10_depthstencil_state_compare,
+};
+
 HRESULT d3d10_device_init(struct d3d10_device *device, void *outer_unknown)
 {
     device->ID3D10Device_iface.lpVtbl = &d3d10_device_vtbl;
@@ -2003,9 +2034,17 @@ HRESULT d3d10_device_init(struct d3d10_device *device, void *outer_unknown)
         return E_FAIL;
     }
 
+    if (wine_rb_init(&device->depthstencil_states, &d3d10_depthstencil_state_rb_ops) == -1)
+    {
+        WARN("Failed to initialize depthstencil state rbtree.\n");
+        wine_rb_destroy(&device->blend_states, NULL, NULL);
+        return E_FAIL;
+    }
+
     if (wine_rb_init(&device->sampler_states, &d3d10_sampler_state_rb_ops) == -1)
     {
         WARN("Failed to initialize sampler state rbtree.\n");
+        wine_rb_destroy(&device->depthstencil_states, NULL, NULL);
         wine_rb_destroy(&device->blend_states, NULL, NULL);
         return E_FAIL;
     }

dlls/d3d10core/state.c

@@ -202,14 +202,15 @@ static ULONG STDMETHODCALLTYPE d3d10_depthstencil_state_AddRef(ID3D10DepthStenci
 
 static ULONG STDMETHODCALLTYPE d3d10_depthstencil_state_Release(ID3D10DepthStencilState *iface)
 {
-    struct d3d10_depthstencil_state *This = impl_from_ID3D10DepthStencilState(iface);
-    ULONG refcount = InterlockedDecrement(&This->refcount);
+    struct d3d10_depthstencil_state *state = impl_from_ID3D10DepthStencilState(iface);
+    ULONG refcount = InterlockedDecrement(&state->refcount);
 
-    TRACE("%p decreasing refcount to %u.\n", This, refcount);
+    TRACE("%p decreasing refcount to %u.\n", state, refcount);
 
     if (!refcount)
     {
-        HeapFree(GetProcessHeap(), 0, This);
+        wine_rb_remove(&state->device->depthstencil_states, &state->desc);
+        HeapFree(GetProcessHeap(), 0, state);
     }
 
     return refcount;
@@ -275,12 +276,20 @@ static const struct ID3D10DepthStencilStateVtbl d3d10_depthstencil_state_vtbl =
     d3d10_depthstencil_state_GetDesc,
 };
 
-HRESULT d3d10_depthstencil_state_init(struct d3d10_depthstencil_state *state, const D3D10_DEPTH_STENCIL_DESC *desc)
+HRESULT d3d10_depthstencil_state_init(struct d3d10_depthstencil_state *state, struct d3d10_device *device,
+        const D3D10_DEPTH_STENCIL_DESC *desc)
 {
     state->ID3D10DepthStencilState_iface.lpVtbl = &d3d10_depthstencil_state_vtbl;
     state->refcount = 1;
+    state->device = device;
     state->desc = *desc;
 
+    if (wine_rb_put(&device->depthstencil_states, desc, &state->entry) == -1)
+    {
+        ERR("Failed to insert depthstencil state entry.\n");
+        return E_FAIL;
+    }
+
     return S_OK;
 }