D3D11: Set viewport in Blit11::resolveStencil.

This introduced a flaky failure to the multisample resolve blit tests. They would work sometimes if the state had set the correct viewport previously, so it wasn't always evident there was a bug. BUG=angleproject:1246 Change-Id: If16d574fb87484fcdc9b7cc6ecc0531ee4a8959d Reviewed-on: https://chromium-review.googlesource.com/362699Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Zhenyao Mo <zmo@chromium.org>

D3D11: Set viewport in Blit11::resolveStencil.
7cfefb37 · Jamie Madill · Commit Bot · f178d0bd · 7cfefb37
Commit 7cfefb37 authored Jul 23, 2016 by Jamie Madill Committed by Commit Bot Jul 23, 2016
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Blit11.cpp src/libANGLE/renderer/d3d/d3d11/Blit11.cpp +10 -0

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--- a/src/libANGLE/renderer/d3d/d3d11/Blit11.cpp
+++ b/src/libANGLE/renderer/d3d/d3d11/Blit11.cpp
@@ -1998,6 +1998,16 @@ gl::ErrorOrResult<TextureHelper11> Blit11::resolveStencil(RenderTarget11 *depthS
    context->OMSetRenderTargets(1, &mResolvedDepthStencilRTView, nullptr);
    context->OMSetBlendState(nullptr, nullptr, 0xFFFFFFF);
+    // Set the viewport
+    D3D11_VIEWPORT viewport;
+    viewport.TopLeftX = 0;
+    viewport.TopLeftY = 0;
+    viewport.Width    = static_cast<FLOAT>(extents.width);
+    viewport.Height   = static_cast<FLOAT>(extents.height);
+    viewport.MinDepth = 0.0f;
+    viewport.MaxDepth = 1.0f;
+    context->RSSetViewports(1, &viewport);
    ID3D11ShaderResourceView *pixelViews[] = {
        depthStencil->getShaderResourceView(), mStencilSRV,
    };