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87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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// Original file Copyright Crytek GMBH or its affiliates, used under license.
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#include <CryCommon/ImageExtensionHelper.h>
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namespace CImageExtensionHelper
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{
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ColorF GetAverageColor(uint8 const* pMem)
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{
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pMem = _findChunkStart(pMem, FOURCC_AvgC);
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if (pMem)
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{
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ColorF ret = ColorF(SwapEndianValue(*(uint32*)pMem));
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//flip red and blue
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const float cRed = ret.r;
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ret.r = ret.b;
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ret.b = cRed;
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return ret;
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}
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return Col_White; // chunk does not exist
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}
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bool IsRangeless(ETEX_Format eTF)
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{
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return (eTF == eTF_BC6UH ||
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eTF == eTF_BC6SH ||
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eTF == eTF_R9G9B9E5 ||
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eTF == eTF_R16G16B16A16F ||
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eTF == eTF_R32G32B32A32F ||
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eTF == eTF_R16F ||
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eTF == eTF_R32F ||
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eTF == eTF_R16G16F ||
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eTF == eTF_R11G11B10F);
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}
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bool IsQuantized(ETEX_Format eTF)
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{
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return (eTF == eTF_B4G4R4A4 ||
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eTF == eTF_B5G6R5 ||
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eTF == eTF_B5G5R5 ||
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eTF == eTF_BC1 ||
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eTF == eTF_BC2 ||
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eTF == eTF_BC3 ||
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eTF == eTF_BC4U ||
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eTF == eTF_BC4S ||
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eTF == eTF_BC5U ||
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eTF == eTF_BC5S ||
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eTF == eTF_BC6UH ||
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eTF == eTF_BC6SH ||
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eTF == eTF_BC7 ||
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eTF == eTF_R9G9B9E5 ||
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eTF == eTF_ETC2 ||
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eTF == eTF_EAC_R11 ||
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eTF == eTF_ETC2A ||
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eTF == eTF_EAC_RG11 ||
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eTF == eTF_PVRTC2 ||
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eTF == eTF_PVRTC4 ||
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eTF == eTF_ASTC_4x4 ||
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eTF == eTF_ASTC_5x4 ||
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eTF == eTF_ASTC_5x5 ||
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eTF == eTF_ASTC_6x5 ||
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eTF == eTF_ASTC_6x6 ||
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eTF == eTF_ASTC_8x5 ||
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eTF == eTF_ASTC_8x6 ||
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eTF == eTF_ASTC_8x8 ||
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eTF == eTF_ASTC_10x5 ||
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eTF == eTF_ASTC_10x6 ||
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eTF == eTF_ASTC_10x8 ||
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eTF == eTF_ASTC_10x10 ||
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eTF == eTF_ASTC_12x10 ||
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eTF == eTF_ASTC_12x12
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);
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}
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}
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