The Tor Browser: gfx/angle/src/libGLESv2/renderer/InputLayoutCache.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 //

     2 // Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.

     3 // Use of this source code is governed by a BSD-style license that can be

     4 // found in the LICENSE file.

     5 //

     7 // InputLayoutCache.h: Defines InputLayoutCache, a class that builds and caches

     8 // D3D11 input layouts.

    10 #ifndef LIBGLESV2_RENDERER_INPUTLAYOUTCACHE_H_

    11 #define LIBGLESV2_RENDERER_INPUTLAYOUTCACHE_H_

    13 #include "libGLESv2/Constants.h"

    14 #include "common/angleutils.h"

    16 namespace gl

    17 {

    18 class ProgramBinary;

    19 }

    21 namespace rx

    22 {

    23 struct TranslatedAttribute;

    25 class InputLayoutCache

    26 {

    27   public:

    28     InputLayoutCache();

    29     virtual ~InputLayoutCache();

    31     void initialize(ID3D11Device *device, ID3D11DeviceContext *context);

    32     void clear();

    33     void markDirty();

    35     GLenum applyVertexBuffers(TranslatedAttribute attributes[gl::MAX_VERTEX_ATTRIBS],

    36                               gl::ProgramBinary *programBinary);

    38   private:

    39     DISALLOW_COPY_AND_ASSIGN(InputLayoutCache);

    41     struct InputLayoutKey

    42     {

    43         unsigned int elementCount;

    44         D3D11_INPUT_ELEMENT_DESC elements[gl::MAX_VERTEX_ATTRIBS];

    45         GLenum glslElementType[gl::MAX_VERTEX_ATTRIBS];

    46     };

    48     struct InputLayoutCounterPair

    49     {

    50         ID3D11InputLayout *inputLayout;

    51         unsigned long long lastUsedTime;

    52     };

    54     ID3D11InputLayout *mCurrentIL;

    55     unsigned int mCurrentBuffers[gl::MAX_VERTEX_ATTRIBS];

    56     UINT mCurrentVertexStrides[gl::MAX_VERTEX_ATTRIBS];

    57     UINT mCurrentVertexOffsets[gl::MAX_VERTEX_ATTRIBS];

    59     static std::size_t hashInputLayout(const InputLayoutKey &inputLayout);

    60     static bool compareInputLayouts(const InputLayoutKey &a, const InputLayoutKey &b);

    62     typedef std::size_t (*InputLayoutHashFunction)(const InputLayoutKey &);

    63     typedef bool (*InputLayoutEqualityFunction)(const InputLayoutKey &, const InputLayoutKey &);

    64     typedef std::unordered_map<InputLayoutKey,

    65                                InputLayoutCounterPair,

    66                                InputLayoutHashFunction,

    67                                InputLayoutEqualityFunction> InputLayoutMap;

    68     InputLayoutMap mInputLayoutMap;

    70     static const unsigned int kMaxInputLayouts;

    72     unsigned long long mCounter;

    74     ID3D11Device *mDevice;

    75     ID3D11DeviceContext *mDeviceContext;

    76 };

    78 }

    80 #endif // LIBGLESV2_RENDERER_INPUTLAYOUTCACHE_H_

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