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diff --git a/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/Buffer11.h b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/Buffer11.h
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+++ b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/Buffer11.h
@@ -0,0 +1,103 @@
+//
+// Copyright 2014 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.
+//
+
+// Buffer11.h: Defines the rx::Buffer11 class which implements rx::BufferImpl via rx::BufferD3D.
+
+#ifndef LIBANGLE_RENDERER_D3D_D3D11_BUFFER11_H_
+#define LIBANGLE_RENDERER_D3D_D3D11_BUFFER11_H_
+
+#include "libANGLE/angletypes.h"
+#include "libANGLE/renderer/d3d/BufferD3D.h"
+
+namespace rx
+{
+class Renderer11;
+
+enum BufferUsage
+{
+ BUFFER_USAGE_STAGING,
+ BUFFER_USAGE_VERTEX_OR_TRANSFORM_FEEDBACK,
+ BUFFER_USAGE_INDEX,
+ BUFFER_USAGE_PIXEL_UNPACK,
+ BUFFER_USAGE_PIXEL_PACK,
+ BUFFER_USAGE_UNIFORM,
+ BUFFER_USAGE_SYSTEM_MEMORY,
+};
+
+struct PackPixelsParams
+{
+ PackPixelsParams();
+ PackPixelsParams(const gl::Rectangle &area, GLenum format, GLenum type, GLuint outputPitch,
+ const gl::PixelPackState &pack, ptrdiff_t offset);
+
+ gl::Rectangle area;
+ GLenum format;
+ GLenum type;
+ GLuint outputPitch;
+ gl::Buffer *packBuffer;
+ gl::PixelPackState pack;
+ ptrdiff_t offset;
+};
+
+typedef size_t DataRevision;
+
+class Buffer11 : public BufferD3D
+{
+ public:
+ Buffer11(Renderer11 *renderer);
+ virtual ~Buffer11();
+
+ static Buffer11 *makeBuffer11(BufferImpl *buffer);
+
+ ID3D11Buffer *getBuffer(BufferUsage usage);
+ ID3D11ShaderResourceView *getSRV(DXGI_FORMAT srvFormat);
+ bool isMapped() const { return mMappedStorage != NULL; }
+ gl::Error packPixels(ID3D11Texture2D *srcTexure, UINT srcSubresource, const PackPixelsParams &params);
+
+ // BufferD3D implementation
+ virtual size_t getSize() const { return mSize; }
+ virtual bool supportsDirectBinding() const;
+
+ // BufferImpl implementation
+ virtual gl::Error setData(const void* data, size_t size, GLenum usage);
+ gl::Error getData(const uint8_t **outData) override;
+ virtual gl::Error setSubData(const void* data, size_t size, size_t offset);
+ virtual gl::Error copySubData(BufferImpl* source, GLintptr sourceOffset, GLintptr destOffset, GLsizeiptr size);
+ virtual gl::Error map(size_t offset, size_t length, GLbitfield access, GLvoid **mapPtr);
+ virtual gl::Error unmap();
+ virtual void markTransformFeedbackUsage();
+
+ private:
+ class BufferStorage;
+ class NativeStorage;
+ class PackStorage;
+ class SystemMemoryStorage;
+
+ Renderer11 *mRenderer;
+ size_t mSize;
+
+ BufferStorage *mMappedStorage;
+
+ std::map<BufferUsage, BufferStorage*> mBufferStorages;
+
+ typedef std::pair<ID3D11Buffer *, ID3D11ShaderResourceView *> BufferSRVPair;
+ std::map<DXGI_FORMAT, BufferSRVPair> mBufferResourceViews;
+
+ unsigned int mReadUsageCount;
+ bool mHasSystemMemoryStorage;
+
+ void markBufferUsage();
+ NativeStorage *getStagingStorage();
+ PackStorage *getPackStorage();
+ gl::Error getSystemMemoryStorage(SystemMemoryStorage **storageOut);
+
+ BufferStorage *getBufferStorage(BufferUsage usage);
+ BufferStorage *getLatestBufferStorage() const;
+};
+
+}
+
+#endif // LIBANGLE_RENDERER_D3D_D3D11_BUFFER11_H_