125 строки
3.5 KiB
C++
125 строки
3.5 KiB
C++
//-------------------------------------------------------------------------------------
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// DirectXTex.inl
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//
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// DirectX Texture Library
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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//
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// http://go.microsoft.com/fwlink/?LinkId=248926
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//-------------------------------------------------------------------------------------
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#pragma once
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//=====================================================================================
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// DXGI Format Utilities
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//=====================================================================================
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_Use_decl_annotations_
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constexpr inline bool __cdecl IsValid(DXGI_FORMAT fmt) noexcept
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{
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return (static_cast<size_t>(fmt) >= 1 && static_cast<size_t>(fmt) <= 190);
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}
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_Use_decl_annotations_
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inline bool __cdecl IsCompressed(DXGI_FORMAT fmt) noexcept
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{
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switch (fmt)
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{
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case DXGI_FORMAT_BC1_TYPELESS:
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case DXGI_FORMAT_BC1_UNORM:
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case DXGI_FORMAT_BC1_UNORM_SRGB:
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case DXGI_FORMAT_BC2_TYPELESS:
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case DXGI_FORMAT_BC2_UNORM:
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case DXGI_FORMAT_BC2_UNORM_SRGB:
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case DXGI_FORMAT_BC3_TYPELESS:
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case DXGI_FORMAT_BC3_UNORM:
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case DXGI_FORMAT_BC3_UNORM_SRGB:
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case DXGI_FORMAT_BC4_TYPELESS:
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case DXGI_FORMAT_BC4_UNORM:
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case DXGI_FORMAT_BC4_SNORM:
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case DXGI_FORMAT_BC5_TYPELESS:
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case DXGI_FORMAT_BC5_UNORM:
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case DXGI_FORMAT_BC5_SNORM:
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case DXGI_FORMAT_BC6H_TYPELESS:
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case DXGI_FORMAT_BC6H_UF16:
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case DXGI_FORMAT_BC6H_SF16:
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case DXGI_FORMAT_BC7_TYPELESS:
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case DXGI_FORMAT_BC7_UNORM:
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case DXGI_FORMAT_BC7_UNORM_SRGB:
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return true;
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default:
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return false;
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}
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}
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_Use_decl_annotations_
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inline bool __cdecl IsPalettized(DXGI_FORMAT fmt) noexcept
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{
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switch (fmt)
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{
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case DXGI_FORMAT_AI44:
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case DXGI_FORMAT_IA44:
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case DXGI_FORMAT_P8:
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case DXGI_FORMAT_A8P8:
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return true;
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default:
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return false;
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}
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}
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_Use_decl_annotations_
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inline bool __cdecl IsSRGB(DXGI_FORMAT fmt) noexcept
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{
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switch (fmt)
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{
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case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
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case DXGI_FORMAT_BC1_UNORM_SRGB:
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case DXGI_FORMAT_BC2_UNORM_SRGB:
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case DXGI_FORMAT_BC3_UNORM_SRGB:
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case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
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case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB:
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case DXGI_FORMAT_BC7_UNORM_SRGB:
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return true;
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default:
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return false;
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}
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}
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//=====================================================================================
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// Image I/O
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//=====================================================================================
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_Use_decl_annotations_
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inline HRESULT __cdecl SaveToDDSMemory(const Image& image, DWORD flags, Blob& blob) noexcept
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{
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TexMetadata mdata = {};
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mdata.width = image.width;
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mdata.height = image.height;
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mdata.depth = 1;
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mdata.arraySize = 1;
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mdata.mipLevels = 1;
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mdata.format = image.format;
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mdata.dimension = TEX_DIMENSION_TEXTURE2D;
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return SaveToDDSMemory(&image, 1, mdata, flags, blob);
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}
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_Use_decl_annotations_
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inline HRESULT __cdecl SaveToDDSFile(const Image& image, DWORD flags, const wchar_t* szFile) noexcept
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{
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TexMetadata mdata = {};
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mdata.width = image.width;
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mdata.height = image.height;
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mdata.depth = 1;
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mdata.arraySize = 1;
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mdata.mipLevels = 1;
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mdata.format = image.format;
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mdata.dimension = TEX_DIMENSION_TEXTURE2D;
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return SaveToDDSFile(&image, 1, mdata, flags, szFile);
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}
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