[PATCH 1/2] d3d10core/tests: Multisampled render targets are zeroed on creation (v2).

[Stefan Dösinger]

Version 2: Use ResolveSubresource and check for multisample support.
---
 dlls/d3d10core/tests/device.c | 73 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)

diff --git a/dlls/d3d10core/tests/device.c b/dlls/d3d10core/tests/device.c
index cedeef6..60ad01e 100644
--- a/dlls/d3d10core/tests/device.c
+++ b/dlls/d3d10core/tests/device.c
@@ -4586,6 +4586,78 @@ static void test_update_subresource(void)
     DestroyWindow(window);
 }
 
+static void test_multisample_init(void)
+{
+    D3D10_TEXTURE2D_DESC desc;
+    ID3D10Texture2D *single, *multi;
+    ID3D10Device *device;
+    ULONG refcount;
+    DWORD color;
+    HRESULT hr;
+    unsigned int x, y;
+    struct texture_readback rb;
+    BOOL all_zero = TRUE;
+    UINT count = 0;
+
+    if (!(device = create_device()))
+    {
+        skip("Failed to create device, skipping tests.\n");
+        return;
+    }
+
+    hr = ID3D10Device_CheckMultisampleQualityLevels(device, DXGI_FORMAT_R8G8B8A8_UNORM, 2, &count);
+    todo_wine ok(SUCCEEDED(hr), "Failed to get quality levels, hr %#x.\n", hr);
+    if (!count)
+    {
+        skip("Multisampling not supported for DXGI_FORMAT_R8G8B8A8_UNORM, skipping tests.\n");
+        goto done;
+    }
+
+    desc.Width = 640;
+    desc.Height = 480;
+    desc.MipLevels = 1;
+    desc.ArraySize = 1;
+    desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+    desc.SampleDesc.Count = 2;
+    desc.SampleDesc.Quality = 0;
+    desc.Usage = D3D10_USAGE_DEFAULT;
+    desc.BindFlags = D3D10_BIND_RENDER_TARGET;
+    desc.CPUAccessFlags = 0;
+    desc.MiscFlags = 0;
+    hr = ID3D10Device_CreateTexture2D(device, &desc, NULL, &multi);
+    ok(SUCCEEDED(hr), "Failed to create texture, hr %#x.\n", hr);
+
+    desc.SampleDesc.Count = 1;
+    hr = ID3D10Device_CreateTexture2D(device, &desc, NULL, &single);
+    ok(SUCCEEDED(hr), "Failed to create texture, hr %#x.\n", hr);
+    ID3D10Device_ResolveSubresource(device, (ID3D10Resource *)single, 0,
+            (ID3D10Resource *)multi, 0, DXGI_FORMAT_R8G8B8A8_UNORM);
+
+    get_texture_readback(single, &rb);
+    for (y = 0; y < 480; ++y)
+    {
+        for (x = 0; x < 640; ++x)
+        {
+            color = get_readback_color(&rb, x, y);
+            if (!compare_color(color, 0x00000000, 0))
+            {
+                all_zero = FALSE;
+                break;
+            }
+        }
+        if (!all_zero)
+            break;
+    }
+    release_texture_readback(&rb);
+    ok(all_zero, "Got unexpected color 0x%08x, position %ux%u.\n", color, x, y);
+
+    ID3D10Texture2D_Release(single);
+    ID3D10Texture2D_Release(multi);
+done:
+    refcount = ID3D10Device_Release(device);
+    ok(!refcount, "Device has %u references left.\n", refcount);
+}
+
 START_TEST(device)
 {
     test_feature_level();
@@ -4613,4 +4685,5 @@ START_TEST(device)
     test_il_append_aligned();
     test_fragment_coords();
     test_update_subresource();
+    test_multisample_init();
 }
-- 
2.4.10