MAJOR UPDATE - BROKEN
- New way of loading Texture
This commit is contained in:
232
enginecustom/include/Inc/DirectXHelpers.h
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232
enginecustom/include/Inc/DirectXHelpers.h
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//--------------------------------------------------------------------------------------
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// File: DirectXHelpers.h
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//
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// Copyright (c) Microsoft Corporation.
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// Licensed under the MIT License.
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//
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// http://go.microsoft.com/fwlink/?LinkId=248929
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//--------------------------------------------------------------------------------------
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#pragma once
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#if defined(_XBOX_ONE) && defined(_TITLE)
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#include <d3d11_x.h>
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#else
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#include <d3d11_1.h>
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#endif
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#ifdef _MSC_VER
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#if !defined(NO_D3D11_DEBUG_NAME) && ( defined(_DEBUG) || defined(PROFILE) )
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#if !defined(_XBOX_ONE) || !defined(_TITLE)
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#pragma comment(lib,"dxguid.lib")
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#endif
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#endif
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#endif
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#ifndef IID_GRAPHICS_PPV_ARGS
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#define IID_GRAPHICS_PPV_ARGS(x) IID_PPV_ARGS(x)
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#endif
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#include <cassert>
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#include <cstddef>
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#include <cstdint>
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#include <cstring>
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#include <exception>
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//
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// The core Direct3D headers provide the following helper C++ classes
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// CD3D11_RECT
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// CD3D11_BOX
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// CD3D11_DEPTH_STENCIL_DESC
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// CD3D11_BLEND_DESC, CD3D11_BLEND_DESC1
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// CD3D11_RASTERIZER_DESC, CD3D11_RASTERIZER_DESC1
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// CD3D11_BUFFER_DESC
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// CD3D11_TEXTURE1D_DESC
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// CD3D11_TEXTURE2D_DESC
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// CD3D11_TEXTURE3D_DESC
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// CD3D11_SHADER_RESOURCE_VIEW_DESC
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// CD3D11_RENDER_TARGET_VIEW_DESC
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// CD3D11_VIEWPORT
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// CD3D11_DEPTH_STENCIL_VIEW_DESC
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// CD3D11_UNORDERED_ACCESS_VIEW_DESC
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// CD3D11_SAMPLER_DESC
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// CD3D11_QUERY_DESC
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// CD3D11_COUNTER_DESC
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//
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namespace DirectX
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{
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inline namespace DX11
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{
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class IEffect;
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}
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// simliar to std::lock_guard for exception-safe Direct3D resource locking
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class MapGuard : public D3D11_MAPPED_SUBRESOURCE
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{
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public:
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MapGuard(_In_ ID3D11DeviceContext* context,
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_In_ ID3D11Resource *resource,
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_In_ unsigned int subresource,
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_In_ D3D11_MAP mapType,
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_In_ unsigned int mapFlags) noexcept(false)
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: mContext(context), mResource(resource), mSubresource(subresource)
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{
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HRESULT hr = mContext->Map(resource, subresource, mapType, mapFlags, this);
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if (FAILED(hr))
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{
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throw std::exception();
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}
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}
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MapGuard(MapGuard&&) = delete;
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MapGuard& operator= (MapGuard&&) = delete;
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MapGuard(MapGuard const&) = delete;
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MapGuard& operator= (MapGuard const&) = delete;
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~MapGuard()
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{
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mContext->Unmap(mResource, mSubresource);
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}
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#ifdef __clang__
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wunknown-warning-option"
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#pragma clang diagnostic ignored "-Wunsafe-buffer-usage"
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#endif
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uint8_t* get() const noexcept
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{
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return static_cast<uint8_t*>(pData);
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}
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uint8_t* get(size_t slice) const noexcept
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{
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return static_cast<uint8_t*>(pData) + (slice * DepthPitch);
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}
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uint8_t* scanline(size_t row) const noexcept
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{
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return static_cast<uint8_t*>(pData) + (row * RowPitch);
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}
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uint8_t* scanline(size_t slice, size_t row) const noexcept
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{
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return static_cast<uint8_t*>(pData) + (slice * DepthPitch) + (row * RowPitch);
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}
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#ifdef __clang__
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#pragma clang diagnostic pop
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#endif
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template<typename T>
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void copy(_In_reads_(count) T const* data, size_t count) noexcept
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{
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memcpy(pData, data, count * sizeof(T));
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}
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template<typename T>
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void copy(T const& data) noexcept
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{
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memcpy(pData, data.data(), data.size() * sizeof(typename T::value_type));
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}
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private:
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ID3D11DeviceContext* mContext;
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ID3D11Resource* mResource;
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unsigned int mSubresource;
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};
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// Helper sets a D3D resource name string (used by PIX and debug layer leak reporting).
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#if !defined(NO_D3D11_DEBUG_NAME) && ( defined(_DEBUG) || defined(PROFILE) )
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template<UINT TNameLength>
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inline void SetDebugObjectName(_In_ ID3D11DeviceChild* resource, _In_z_ const char(&name)[TNameLength]) noexcept
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{
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#if defined(_XBOX_ONE) && defined(_TITLE)
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wchar_t wname[MAX_PATH];
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int result = MultiByteToWideChar(CP_UTF8, 0, name, TNameLength, wname, MAX_PATH);
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if (result > 0)
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{
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resource->SetName(wname);
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}
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#else
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resource->SetPrivateData(WKPDID_D3DDebugObjectName, TNameLength - 1, name);
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#endif
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}
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#else
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template<UINT TNameLength>
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inline void SetDebugObjectName(_In_ ID3D11DeviceChild*, _In_z_ const char(&)[TNameLength]) noexcept
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{
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}
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#endif
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#if !defined(NO_D3D11_DEBUG_NAME) && ( defined(_DEBUG) || defined(PROFILE) )
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template<UINT TNameLength>
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inline void SetDebugObjectName(_In_ ID3D11DeviceChild* resource, _In_z_ const wchar_t(&name)[TNameLength])
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{
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#if defined(_XBOX_ONE) && defined(_TITLE)
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resource->SetName(name);
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#else
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char aname[MAX_PATH];
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int result = WideCharToMultiByte(CP_UTF8, 0, name, TNameLength, aname, MAX_PATH, nullptr, nullptr);
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if (result > 0)
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{
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resource->SetPrivateData(WKPDID_D3DDebugObjectName, TNameLength - 1, aname);
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}
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#endif
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}
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#else
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template<UINT TNameLength>
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inline void SetDebugObjectName(_In_ ID3D11DeviceChild*, _In_z_ const wchar_t(&)[TNameLength])
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{
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}
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#endif
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inline namespace DX11
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{
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// Helper to check for power-of-2
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template<typename T>
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constexpr bool IsPowerOf2(T x) noexcept { return ((x != 0) && !(x & (x - 1))); }
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// Helpers for aligning values by a power of 2
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template<typename T>
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inline T AlignDown(T size, size_t alignment) noexcept
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{
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if (alignment > 0)
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{
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assert(((alignment - 1) & alignment) == 0);
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auto mask = static_cast<T>(alignment - 1);
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return size & ~mask;
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}
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return size;
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}
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template<typename T>
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inline T AlignUp(T size, size_t alignment) noexcept
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{
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if (alignment > 0)
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{
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assert(((alignment - 1) & alignment) == 0);
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auto mask = static_cast<T>(alignment - 1);
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return (size + mask) & ~mask;
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}
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return size;
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}
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}
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// Helper for creating a Direct3D input layout to match a shader from an IEffect
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HRESULT __cdecl CreateInputLayoutFromEffect(_In_ ID3D11Device* device,
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_In_ IEffect* effect,
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_In_reads_(count) const D3D11_INPUT_ELEMENT_DESC* desc,
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size_t count,
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_COM_Outptr_ ID3D11InputLayout** pInputLayout) noexcept;
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template<typename T>
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HRESULT CreateInputLayoutFromEffect(_In_ ID3D11Device* device,
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_In_ IEffect* effect,
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_COM_Outptr_ ID3D11InputLayout** pInputLayout) noexcept
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{
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return CreateInputLayoutFromEffect(device, effect, T::InputElements, T::InputElementCount, pInputLayout);
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}
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}
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