dxgi: Implement d3d12_swapchain_GetCurrentBackBufferIndex().

Signed-off-by: Józef Kucia <jkucia@codeweavers.com> Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dxgi: Implement d3d12_swapchain_GetCurrentBackBufferIndex().
71b29963 · Józef Kucia · Alexandre Julliard · 9ff8fe17 · 71b29963
Commit 71b29963 authored May 31, 2018 by Józef Kucia Committed by Alexandre Julliard May 31, 2018
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swapchain.c dlls/dxgi/swapchain.c +4 -2

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--- a/dlls/dxgi/swapchain.c
+++ b/dlls/dxgi/swapchain.c
@@ -1291,9 +1291,11 @@ static HRESULT STDMETHODCALLTYPE d3d12_swapchain_GetMatrixTransform(IDXGISwapCha

 static UINT STDMETHODCALLTYPE d3d12_swapchain_GetCurrentBackBufferIndex(IDXGISwapChain3 *iface)
 {
-    FIXME("iface %p stub!\n", iface);
+    struct d3d12_swapchain *swapchain = d3d12_swapchain_from_IDXGISwapChain3(iface);
+
+    TRACE("iface %p.\n", iface);

-    return 0;
+    return swapchain->current_buffer_index;
 }

 static HRESULT STDMETHODCALLTYPE d3d12_swapchain_CheckColorSpaceSupport(IDXGISwapChain3 *iface,