From 8b6a7a9c02d048949cf4b0e9b72494213d55ead2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20D=C3=B6singer?= <stefan@codeweavers.com>
Date: Tue, 25 Nov 2014 10:16:54 +0100
Subject: [PATCH] d3d9: Only one fullscreen swapchain is allowed.

---
 dlls/d3d9/device.c       | 25 +++++++++++++++++++++++++
 dlls/d3d9/tests/device.c | 38 +++++++++++++++++++++++++++++++++++++-
 2 files changed, 62 insertions(+), 1 deletion(-)

diff --git a/dlls/d3d9/device.c b/dlls/d3d9/device.c
index ca902a238f..67a5629908 100644
--- a/dlls/d3d9/device.c
+++ b/dlls/d3d9/device.c
@@ -503,11 +503,36 @@ static HRESULT WINAPI DECLSPEC_HOTPATCH d3d9_device_CreateAdditionalSwapChain(ID
     struct d3d9_device *device = impl_from_IDirect3DDevice9Ex(iface);
     struct wined3d_swapchain_desc desc;
     struct d3d9_swapchain *object;
+    UINT i, count;
     HRESULT hr;
 
     TRACE("iface %p, present_parameters %p, swapchain %p.\n",
             iface, present_parameters, swapchain);
 
+    if (!present_parameters->Windowed)
+    {
+        WARN("Trying to create an additional fullscreen swapchain, returning D3DERR_INVALIDCALL.\n");
+        return D3DERR_INVALIDCALL;
+    }
+
+    wined3d_mutex_lock();
+    count = wined3d_device_get_swapchain_count(device->wined3d_device);
+    for (i = 0; i < count; ++i)
+    {
+        struct wined3d_swapchain *wined3d_swapchain;
+
+        wined3d_swapchain = wined3d_device_get_swapchain(device->wined3d_device, i);
+        wined3d_swapchain_get_desc(wined3d_swapchain, &desc);
+
+        if (!desc.windowed)
+        {
+            wined3d_mutex_unlock();
+            WARN("Trying to create an additional swapchain in fullscreen mode, returning D3DERR_INVALIDCALL.\n");
+            return D3DERR_INVALIDCALL;
+        }
+    }
+    wined3d_mutex_unlock();
+
     wined3d_swapchain_desc_from_present_parameters(&desc, present_parameters);
     if (SUCCEEDED(hr = d3d9_swapchain_create(device, &desc, &object)))
         *swapchain = (IDirect3DSwapChain9 *)&object->IDirect3DSwapChain9Ex_iface;
diff --git a/dlls/d3d9/tests/device.c b/dlls/d3d9/tests/device.c
index 35dad62a44..061846b87d 100644
--- a/dlls/d3d9/tests/device.c
+++ b/dlls/d3d9/tests/device.c
@@ -1058,12 +1058,16 @@ static void test_swapchain(void)
     IDirect3DDevice9 *device;
     IDirect3D9 *d3d;
     ULONG refcount;
-    HWND window;
+    HWND window, window2;
     HRESULT hr;
+    struct device_desc device_desc;
 
     window = CreateWindowA("d3d9_test_wc", "d3d9_test", WS_OVERLAPPEDWINDOW,
             0, 0, 640, 480, NULL, NULL, NULL, NULL);
     ok(!!window, "Failed to create a window.\n");
+    window2 = CreateWindowA("d3d9_test_wc", "d3d9_test", WS_OVERLAPPEDWINDOW,
+            0, 0, 640, 480, NULL, NULL, NULL, NULL);
+    ok(!!window2, "Failed to create a window.\n");
     d3d = Direct3DCreate9(D3D_SDK_VERSION);
     ok(!!d3d, "Failed to create a D3D object.\n");
     if (!(device = create_device(d3d, window, NULL)))
@@ -1176,10 +1180,42 @@ static void test_swapchain(void)
     IDirect3DSwapChain9_Release(swapchain3);
     IDirect3DSwapChain9_Release(swapchain2);
     IDirect3DSwapChain9_Release(swapchain1);
+
+    d3dpp.Windowed = FALSE;
+    d3dpp.hDeviceWindow = window;
+    d3dpp.BackBufferCount = 1;
+    hr = IDirect3DDevice9_CreateAdditionalSwapChain(device, &d3dpp, &swapchain1);
+    ok(hr == D3DERR_INVALIDCALL, "Got unexpected hr %#x\n", hr);
+    d3dpp.hDeviceWindow = window2;
+    hr = IDirect3DDevice9_CreateAdditionalSwapChain(device, &d3dpp, &swapchain1);
+    ok(hr == D3DERR_INVALIDCALL, "Got unexpected hr %#x\n", hr);
+
+    device_desc.width = registry_mode.dmPelsWidth;
+    device_desc.height = registry_mode.dmPelsHeight;
+    device_desc.device_window = window;
+    device_desc.flags = CREATE_DEVICE_FULLSCREEN;
+    hr = reset_device(device, &device_desc);
+    ok(SUCCEEDED(hr), "Failed to reset device, hr %#x.\n", hr);
+
+    d3dpp.hDeviceWindow = window;
+    hr = IDirect3DDevice9_CreateAdditionalSwapChain(device, &d3dpp, &swapchain1);
+    ok(hr == D3DERR_INVALIDCALL, "Got unexpected hr %#x\n", hr);
+    d3dpp.hDeviceWindow = window2;
+    hr = IDirect3DDevice9_CreateAdditionalSwapChain(device, &d3dpp, &swapchain1);
+    ok(hr == D3DERR_INVALIDCALL, "Got unexpected hr %#x\n", hr);
+    d3dpp.Windowed = TRUE;
+    d3dpp.hDeviceWindow = window;
+    hr = IDirect3DDevice9_CreateAdditionalSwapChain(device, &d3dpp, &swapchain1);
+    ok(hr == D3DERR_INVALIDCALL, "Got unexpected hr %#x\n", hr);
+    d3dpp.hDeviceWindow = window2;
+    hr = IDirect3DDevice9_CreateAdditionalSwapChain(device, &d3dpp, &swapchain1);
+    ok(hr == D3DERR_INVALIDCALL, "Got unexpected hr %#x\n", hr);
+
     refcount = IDirect3DDevice9_Release(device);
     ok(!refcount, "Device has %u references left.\n", refcount);
 cleanup:
     IDirect3D9_Release(d3d);
+    DestroyWindow(window2);
     DestroyWindow(window);
 }