wined3d: Introduce a separate structure for OpenGL swapchain information.

dlls/wined3d/adapter_gl.c

@@ -4656,7 +4656,7 @@ static void adapter_gl_uninit_3d(struct wined3d_device *device)
 static HRESULT adapter_gl_create_swapchain(struct wined3d_device *device, struct wined3d_swapchain_desc *desc,
         void *parent, const struct wined3d_parent_ops *parent_ops, struct wined3d_swapchain **swapchain)
 {
-    struct wined3d_swapchain *swapchain_gl;
+    struct wined3d_swapchain_gl *swapchain_gl;
     HRESULT hr;
 
     TRACE("device %p, desc %p, parent %p, parent_ops %p, swapchain %p.\n",
@@ -4673,15 +4673,17 @@ static HRESULT adapter_gl_create_swapchain(struct wined3d_device *device, struct
     }
 
     TRACE("Created swapchain %p.\n", swapchain_gl);
-    *swapchain = swapchain_gl;
+    *swapchain = &swapchain_gl->s;
 
     return hr;
 }
 
 static void adapter_gl_destroy_swapchain(struct wined3d_swapchain *swapchain)
 {
-    wined3d_swapchain_cleanup(swapchain);
-    heap_free(swapchain);
+    struct wined3d_swapchain_gl *swapchain_gl = wined3d_swapchain_gl(swapchain);
+
+    wined3d_swapchain_gl_cleanup(swapchain_gl);
+    heap_free(swapchain_gl);
 }
 
 static HRESULT adapter_gl_create_buffer(struct wined3d_device *device,

dlls/wined3d/swapchain.c

@@ -105,6 +105,11 @@ void wined3d_swapchain_cleanup(struct wined3d_swapchain *swapchain)
     }
 }
 
+void wined3d_swapchain_gl_cleanup(struct wined3d_swapchain_gl *swapchain_gl)
+{
+    wined3d_swapchain_cleanup(&swapchain_gl->s);
+}
+
 ULONG CDECL wined3d_swapchain_incref(struct wined3d_swapchain *swapchain)
 {
     ULONG refcount = InterlockedIncrement(&swapchain->ref);
@@ -1031,13 +1036,13 @@ HRESULT wined3d_swapchain_no3d_init(struct wined3d_swapchain *swapchain_no3d, st
     return wined3d_swapchain_init(swapchain_no3d, device, desc, parent, parent_ops, &swapchain_no3d_ops);
 }
 
-HRESULT wined3d_swapchain_gl_init(struct wined3d_swapchain *swapchain_gl, struct wined3d_device *device,
+HRESULT wined3d_swapchain_gl_init(struct wined3d_swapchain_gl *swapchain_gl, struct wined3d_device *device,
         struct wined3d_swapchain_desc *desc, void *parent, const struct wined3d_parent_ops *parent_ops)
 {
     TRACE("swapchain_gl %p, device %p, desc %p, parent %p, parent_ops %p.\n",
             swapchain_gl, device, desc, parent, parent_ops);
 
-    return wined3d_swapchain_init(swapchain_gl, device, desc, parent, parent_ops, &swapchain_gl_ops);
+    return wined3d_swapchain_init(&swapchain_gl->s, device, desc, parent, parent_ops, &swapchain_gl_ops);
 }
 
 HRESULT wined3d_swapchain_vk_init(struct wined3d_swapchain *swapchain_vk, struct wined3d_device *device,

dlls/wined3d/wined3d_private.h

@@ -4422,7 +4422,18 @@ HRESULT wined3d_swapchain_no3d_init(struct wined3d_swapchain *swapchain_no3d,
         struct wined3d_device *device, struct wined3d_swapchain_desc *desc,
         void *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;
 
-HRESULT wined3d_swapchain_gl_init(struct wined3d_swapchain *swapchain_gl,
+struct wined3d_swapchain_gl
+{
+    struct wined3d_swapchain s;
+};
+
+static inline struct wined3d_swapchain_gl *wined3d_swapchain_gl(struct wined3d_swapchain *swapchain)
+{
+    return CONTAINING_RECORD(swapchain, struct wined3d_swapchain_gl, s);
+}
+
+void wined3d_swapchain_gl_cleanup(struct wined3d_swapchain_gl *swapchain_gl) DECLSPEC_HIDDEN;
+HRESULT wined3d_swapchain_gl_init(struct wined3d_swapchain_gl *swapchain_gl,
         struct wined3d_device *device, struct wined3d_swapchain_desc *desc,
         void *parent, const struct wined3d_parent_ops *parent_ops) DECLSPEC_HIDDEN;