dxgi/tests: Test presentation parameter combinations.

dlls/dxgi/factory.c

@@ -190,21 +190,43 @@ static HRESULT STDMETHODCALLTYPE dxgi_factory_CreateSwapChain(IDXGIFactory1 *ifa
     struct wined3d_swapchain_desc wined3d_desc;
     IWineDXGIDevice *dxgi_device;
     HRESULT hr;
+    UINT min_buffer_count;
 
     FIXME("iface %p, device %p, desc %p, swapchain %p partial stub!\n", iface, device, desc, swapchain);
 
-    hr = IUnknown_QueryInterface(device, &IID_IWineDXGIDevice, (void **)&dxgi_device);
-    if (FAILED(hr))
+    switch (desc->SwapEffect)
     {
-        ERR("This is not the device we're looking for\n");
-        return hr;
+        case DXGI_SWAP_EFFECT_DISCARD:
+        case DXGI_SWAP_EFFECT_SEQUENTIAL:
+            min_buffer_count = 1;
+            break;
+
+        case DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL:
+            min_buffer_count = 2;
+            break;
+
+        default:
+            WARN("Invalid swap effect %u used, returning DXGI_ERROR_INVALID_CALL.\n", desc->SwapEffect);
+            return DXGI_ERROR_INVALID_CALL;
     }
 
+    if (desc->BufferCount < min_buffer_count || desc->BufferCount > 16)
+    {
+        WARN("BufferCount is %u, returning DXGI_ERROR_INVALID_CALL.\n", desc->BufferCount);
+        return DXGI_ERROR_INVALID_CALL;
+    }
     if (!desc->OutputWindow)
     {
         FIXME("No output window, should use factory output window\n");
     }
 
+    hr = IUnknown_QueryInterface(device, &IID_IWineDXGIDevice, (void **)&dxgi_device);
+    if (FAILED(hr))
+    {
+        ERR("This is not the device we're looking for\n");
+        return hr;
+    }
+
     FIXME("Ignoring SwapEffect and Flags\n");
 
     wined3d_desc.backbuffer_width = desc->BufferDesc.Width;

include/dxgi.idl

@@ -60,6 +60,8 @@ const DXGI_USAGE DXGI_USAGE_RENDER_TARGET_OUTPUT    = 0x20L;
 const DXGI_USAGE DXGI_USAGE_BACK_BUFFER             = 0x40L;
 const DXGI_USAGE DXGI_USAGE_SHARED                  = 0x80L;
 const DXGI_USAGE DXGI_USAGE_READ_ONLY               = 0x100L;
+const DXGI_USAGE DXGI_USAGE_DISCARD_ON_PRESENT      = 0x200L;
+const DXGI_USAGE DXGI_USAGE_UNORDERED_ACCESS        = 0x400L;
 
 const UINT DXGI_ENUM_MODES_INTERLACED               = 1;
 const UINT DXGI_ENUM_MODES_SCALING                  = 2;