62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
// Copyright (c) 2012-2022 Wojciech Figat. All rights reserved.
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#pragma once
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#include "Engine/Core/Types/BaseTypes.h"
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#include "Types.h"
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/// <summary>
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/// Texture utilities class
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/// </summary>
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class TextureUtils
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{
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public:
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static PixelFormat ToPixelFormat(const TextureFormatType format, int32 width, int32 height, bool canCompress)
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{
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const bool canUseBlockCompression = width % 4 == 0 && height % 4 == 0;
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if (canCompress && canUseBlockCompression)
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{
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switch (format)
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{
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case TextureFormatType::ColorRGB:
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return PixelFormat::BC1_UNorm;
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case TextureFormatType::ColorRGBA:
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return PixelFormat::BC3_UNorm;
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case TextureFormatType::NormalMap:
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return PixelFormat::BC5_UNorm;
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case TextureFormatType::GrayScale:
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return PixelFormat::BC4_UNorm;
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case TextureFormatType::HdrRGBA:
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return PixelFormat::BC7_UNorm;
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case TextureFormatType::HdrRGB:
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#if PLATFORM_LINUX
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// TODO: support BC6H compression for Linux Editor
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return PixelFormat::BC7_UNorm;
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#else
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return PixelFormat::BC6H_Uf16;
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#endif
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default:
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return PixelFormat::Unknown;
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}
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}
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switch (format)
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{
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case TextureFormatType::ColorRGB:
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return PixelFormat::R8G8B8A8_UNorm;
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case TextureFormatType::ColorRGBA:
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return PixelFormat::R8G8B8A8_UNorm;
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case TextureFormatType::NormalMap:
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return PixelFormat::R16G16_UNorm;
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case TextureFormatType::GrayScale:
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return PixelFormat::R8_UNorm;
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case TextureFormatType::HdrRGBA:
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return PixelFormat::R16G16B16A16_Float;
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case TextureFormatType::HdrRGB:
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return PixelFormat::R11G11B10_Float;
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default:
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return PixelFormat::Unknown;
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}
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}
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};
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