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diff --git a/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d11/formatutils11.h b/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d11/formatutils11.h
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+++ b/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d11/formatutils11.h
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+//
+// Copyright 2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// formatutils11.h: Queries for GL image formats and their translations to D3D11
+// formats.
+
+#ifndef LIBANGLE_RENDERER_D3D_D3D11_FORMATUTILS11_H_
+#define LIBANGLE_RENDERER_D3D_D3D11_FORMATUTILS11_H_
+
+#include <map>
+
+#include "common/platform.h"
+#include "libANGLE/angletypes.h"
+#include "libANGLE/formatutils.h"
+#include "libANGLE/renderer/copyvertex.h"
+#include "libANGLE/renderer/d3d/formatutilsD3D.h"
+#include "libANGLE/renderer/dxgi_format_map.h"
+#include "libANGLE/renderer/renderer_utils.h"
+
+namespace rx
+{
+struct Renderer11DeviceCaps;
+
+namespace d3d11
+{
+
+// A texture might be stored as DXGI_FORMAT_R16_TYPELESS but store integer components,
+// which are accessed through an DXGI_FORMAT_R16_SINT view. It's easy to write code which queries
+// information about the wrong format. Therefore, use of this should be avoided where possible.
+
+bool SupportsMipGen(DXGI_FORMAT dxgiFormat, D3D_FEATURE_LEVEL featureLevel);
+
+struct DXGIFormatSize
+{
+ DXGIFormatSize(GLuint pixelBits, GLuint blockWidth, GLuint blockHeight);
+
+ GLuint pixelBytes;
+ GLuint blockWidth;
+ GLuint blockHeight;
+};
+const DXGIFormatSize &GetDXGIFormatSizeInfo(DXGI_FORMAT format);
+
+struct VertexFormat : private angle::NonCopyable
+{
+ constexpr VertexFormat();
+ constexpr VertexFormat(VertexConversionType conversionType,
+ DXGI_FORMAT nativeFormat,
+ VertexCopyFunction copyFunction);
+
+ VertexConversionType conversionType;
+ DXGI_FORMAT nativeFormat;
+ VertexCopyFunction copyFunction;
+};
+
+const VertexFormat &GetVertexFormatInfo(angle::FormatID vertexFormatID,
+ D3D_FEATURE_LEVEL featureLevel);
+} // namespace d3d11
+
+} // namespace rx
+
+#endif // LIBANGLE_RENDERER_D3D_D3D11_FORMATUTILS11_H_