wined3d: Use the display format if WINED3DFMT_UNKNOWN is passed as backbuffer…

dlls/d3d9/tests/d3d9ex.c

@@ -1064,7 +1064,7 @@ static void test_reset(void)
 
     ok(d3dpp.BackBufferWidth == 200, "Got unexpected BackBufferWidth %u.\n", d3dpp.BackBufferWidth);
     ok(d3dpp.BackBufferHeight == 150, "Got unexpected BackBufferHeight %u.\n", d3dpp.BackBufferHeight);
-    todo_wine ok(d3dpp.BackBufferFormat == d3ddm.Format, "Got unexpected BackBufferFormat %#x, expected %#x.\n",
+    ok(d3dpp.BackBufferFormat == d3ddm.Format, "Got unexpected BackBufferFormat %#x, expected %#x.\n",
             d3dpp.BackBufferFormat, d3ddm.Format);
     ok(d3dpp.BackBufferCount == 1, "Got unexpected BackBufferCount %u.\n", d3dpp.BackBufferCount);
     ok(!d3dpp.MultiSampleType, "Got unexpected MultiSampleType %u.\n", d3dpp.MultiSampleType);
@@ -1100,7 +1100,7 @@ static void test_reset(void)
     ok(SUCCEEDED(hr), "Failed to get present parameters, hr %#x.\n", hr);
     ok(d3dpp.BackBufferWidth == 200, "Got unexpected backbuffer width %u.\n", d3dpp.BackBufferWidth);
     ok(d3dpp.BackBufferHeight == 150, "Got unexpected backbuffer height %u.\n", d3dpp.BackBufferHeight);
-    todo_wine ok(d3dpp.BackBufferFormat == d3ddm.Format, "Got unexpected BackBufferFormat %#x, expected %#x.\n",
+    ok(d3dpp.BackBufferFormat == d3ddm.Format, "Got unexpected BackBufferFormat %#x, expected %#x.\n",
             d3dpp.BackBufferFormat, d3ddm.Format);
     ok(d3dpp.BackBufferCount == 1, "Got unexpected BackBufferCount %u.\n", d3dpp.BackBufferCount);
     ok(!d3dpp.MultiSampleType, "Got unexpected MultiSampleType %u.\n", d3dpp.MultiSampleType);

dlls/d3d9/tests/device.c

@@ -1869,7 +1869,7 @@ static void test_reset(void)
 
     ok(d3dpp.BackBufferWidth == 200, "Got unexpected BackBufferWidth %u.\n", d3dpp.BackBufferWidth);
     ok(d3dpp.BackBufferHeight == 150, "Got unexpected BackBufferHeight %u.\n", d3dpp.BackBufferHeight);
-    todo_wine ok(d3dpp.BackBufferFormat == d3ddm.Format, "Got unexpected BackBufferFormat %#x, expected %#x.\n",
+    ok(d3dpp.BackBufferFormat == d3ddm.Format, "Got unexpected BackBufferFormat %#x, expected %#x.\n",
             d3dpp.BackBufferFormat, d3ddm.Format);
     ok(d3dpp.BackBufferCount == 1, "Got unexpected BackBufferCount %u.\n", d3dpp.BackBufferCount);
     ok(!d3dpp.MultiSampleType, "Got unexpected MultiSampleType %u.\n", d3dpp.MultiSampleType);
@@ -1904,7 +1904,7 @@ static void test_reset(void)
     ok(SUCCEEDED(hr), "Failed to get present parameters, hr %#x.\n", hr);
     ok(d3dpp.BackBufferWidth == 200, "Got unexpected BackBufferWidth %u.\n", d3dpp.BackBufferWidth);
     ok(d3dpp.BackBufferHeight == 150, "Got unexpected BackBufferHeight %u.\n", d3dpp.BackBufferHeight);
-    todo_wine ok(d3dpp.BackBufferFormat == d3ddm.Format, "Got unexpected BackBufferFormat %#x, expected %#x.\n",
+    ok(d3dpp.BackBufferFormat == d3ddm.Format, "Got unexpected BackBufferFormat %#x, expected %#x.\n",
             d3dpp.BackBufferFormat, d3ddm.Format);
     ok(d3dpp.BackBufferCount == 1, "Got unexpected BackBufferCount %u.\n", d3dpp.BackBufferCount);
     ok(!d3dpp.MultiSampleType, "Got unexpected MultiSampleType %u.\n", d3dpp.MultiSampleType);

dlls/wined3d/device.c

@@ -4331,6 +4331,7 @@ HRESULT CDECL wined3d_device_reset(struct wined3d_device *device,
         const struct wined3d_swapchain_desc *swapchain_desc, const struct wined3d_display_mode *mode,
         wined3d_device_reset_cb callback, BOOL reset_state)
 {
+    enum wined3d_format_id backbuffer_format = swapchain_desc->backbuffer_format;
     struct wined3d_resource *resource, *cursor;
     struct wined3d_swapchain *swapchain;
     struct wined3d_display_mode m;
@@ -4492,10 +4493,16 @@ HRESULT CDECL wined3d_device_reset(struct wined3d_device *device,
         update_desc = TRUE;
     }
 
-    if (swapchain_desc->backbuffer_format != WINED3DFMT_UNKNOWN
-            && swapchain_desc->backbuffer_format != swapchain->desc.backbuffer_format)
+    if (backbuffer_format == WINED3DFMT_UNKNOWN)
     {
-        swapchain->desc.backbuffer_format = swapchain_desc->backbuffer_format;
+        if (!swapchain_desc->windowed)
+            return WINED3DERR_INVALIDCALL;
+        backbuffer_format = swapchain->original_mode.format_id;
+    }
+
+    if (backbuffer_format != swapchain->desc.backbuffer_format)
+    {
+        swapchain->desc.backbuffer_format = backbuffer_format;
         update_desc = TRUE;
     }