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Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/renderer/InputLayoutCache.h')
-rw-r--r-- | src/3rdparty/angle/src/libGLESv2/renderer/InputLayoutCache.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/renderer/InputLayoutCache.h b/src/3rdparty/angle/src/libGLESv2/renderer/InputLayoutCache.h new file mode 100644 index 0000000000..d95f39fae4 --- /dev/null +++ b/src/3rdparty/angle/src/libGLESv2/renderer/InputLayoutCache.h @@ -0,0 +1,74 @@ +// +// Copyright (c) 2012 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. +// + +// InputLayoutCache.h: Defines InputLayoutCache, a class that builds and caches +// D3D11 input layouts. + +#ifndef LIBGLESV2_RENDERER_INPUTLAYOUTCACHE_H_ +#define LIBGLESV2_RENDERER_INPUTLAYOUTCACHE_H_ + +#include "libGLESv2/Constants.h" +#include "common/angleutils.h" + +namespace gl +{ +class ProgramBinary; +} + +namespace rx +{ +struct TranslatedAttribute; + +class InputLayoutCache +{ + public: + InputLayoutCache(); + virtual ~InputLayoutCache(); + + void initialize(ID3D11Device *device, ID3D11DeviceContext *context); + void clear(); + + GLenum applyVertexBuffers(TranslatedAttribute attributes[gl::MAX_VERTEX_ATTRIBS], + gl::ProgramBinary *programBinary); + + private: + DISALLOW_COPY_AND_ASSIGN(InputLayoutCache); + + struct InputLayoutKey + { + unsigned int elementCount; + D3D11_INPUT_ELEMENT_DESC elements[gl::MAX_VERTEX_ATTRIBS]; + GLenum glslElementType[gl::MAX_VERTEX_ATTRIBS]; + }; + + struct InputLayoutCounterPair + { + ID3D11InputLayout *inputLayout; + unsigned long long lastUsedTime; + }; + + static std::size_t hashInputLayout(const InputLayoutKey &inputLayout); + static bool compareInputLayouts(const InputLayoutKey &a, const InputLayoutKey &b); + + typedef std::size_t (*InputLayoutHashFunction)(const InputLayoutKey &); + typedef bool (*InputLayoutEqualityFunction)(const InputLayoutKey &, const InputLayoutKey &); + typedef std::unordered_map<InputLayoutKey, + InputLayoutCounterPair, + InputLayoutHashFunction, + InputLayoutEqualityFunction> InputLayoutMap; + InputLayoutMap mInputLayoutMap; + + static const unsigned int kMaxInputLayouts; + + unsigned long long mCounter; + + ID3D11Device *mDevice; + ID3D11DeviceContext *mDeviceContext; +}; + +} + +#endif // LIBGLESV2_RENDERER_INPUTLAYOUTCACHE_H_ |