1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/angle/src/libGLESv2/renderer/InputLayoutCache.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,80 @@
1.4 +//
1.5 +// Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.
1.6 +// Use of this source code is governed by a BSD-style license that can be
1.7 +// found in the LICENSE file.
1.8 +//
1.9 +
1.10 +// InputLayoutCache.h: Defines InputLayoutCache, a class that builds and caches
1.11 +// D3D11 input layouts.
1.12 +
1.13 +#ifndef LIBGLESV2_RENDERER_INPUTLAYOUTCACHE_H_
1.14 +#define LIBGLESV2_RENDERER_INPUTLAYOUTCACHE_H_
1.15 +
1.16 +#include "libGLESv2/Constants.h"
1.17 +#include "common/angleutils.h"
1.18 +
1.19 +namespace gl
1.20 +{
1.21 +class ProgramBinary;
1.22 +}
1.23 +
1.24 +namespace rx
1.25 +{
1.26 +struct TranslatedAttribute;
1.27 +
1.28 +class InputLayoutCache
1.29 +{
1.30 + public:
1.31 + InputLayoutCache();
1.32 + virtual ~InputLayoutCache();
1.33 +
1.34 + void initialize(ID3D11Device *device, ID3D11DeviceContext *context);
1.35 + void clear();
1.36 + void markDirty();
1.37 +
1.38 + GLenum applyVertexBuffers(TranslatedAttribute attributes[gl::MAX_VERTEX_ATTRIBS],
1.39 + gl::ProgramBinary *programBinary);
1.40 +
1.41 + private:
1.42 + DISALLOW_COPY_AND_ASSIGN(InputLayoutCache);
1.43 +
1.44 + struct InputLayoutKey
1.45 + {
1.46 + unsigned int elementCount;
1.47 + D3D11_INPUT_ELEMENT_DESC elements[gl::MAX_VERTEX_ATTRIBS];
1.48 + GLenum glslElementType[gl::MAX_VERTEX_ATTRIBS];
1.49 + };
1.50 +
1.51 + struct InputLayoutCounterPair
1.52 + {
1.53 + ID3D11InputLayout *inputLayout;
1.54 + unsigned long long lastUsedTime;
1.55 + };
1.56 +
1.57 + ID3D11InputLayout *mCurrentIL;
1.58 + unsigned int mCurrentBuffers[gl::MAX_VERTEX_ATTRIBS];
1.59 + UINT mCurrentVertexStrides[gl::MAX_VERTEX_ATTRIBS];
1.60 + UINT mCurrentVertexOffsets[gl::MAX_VERTEX_ATTRIBS];
1.61 +
1.62 + static std::size_t hashInputLayout(const InputLayoutKey &inputLayout);
1.63 + static bool compareInputLayouts(const InputLayoutKey &a, const InputLayoutKey &b);
1.64 +
1.65 + typedef std::size_t (*InputLayoutHashFunction)(const InputLayoutKey &);
1.66 + typedef bool (*InputLayoutEqualityFunction)(const InputLayoutKey &, const InputLayoutKey &);
1.67 + typedef std::unordered_map<InputLayoutKey,
1.68 + InputLayoutCounterPair,
1.69 + InputLayoutHashFunction,
1.70 + InputLayoutEqualityFunction> InputLayoutMap;
1.71 + InputLayoutMap mInputLayoutMap;
1.72 +
1.73 + static const unsigned int kMaxInputLayouts;
1.74 +
1.75 + unsigned long long mCounter;
1.76 +
1.77 + ID3D11Device *mDevice;
1.78 + ID3D11DeviceContext *mDeviceContext;
1.79 +};
1.80 +
1.81 +}
1.82 +
1.83 +#endif // LIBGLESV2_RENDERER_INPUTLAYOUTCACHE_H_
