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Diffstat (limited to 'thirdparty/etc2comp/EtcBlock4x4Encoding_ETC1.h')
| -rw-r--r-- | thirdparty/etc2comp/EtcBlock4x4Encoding_ETC1.h | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/thirdparty/etc2comp/EtcBlock4x4Encoding_ETC1.h b/thirdparty/etc2comp/EtcBlock4x4Encoding_ETC1.h deleted file mode 100644 index c0dc84d5d5..0000000000 --- a/thirdparty/etc2comp/EtcBlock4x4Encoding_ETC1.h +++ /dev/null @@ -1,186 +0,0 @@ -/* - * Copyright 2015 The Etc2Comp Authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#pragma once - -#include "EtcBlock4x4Encoding.h" -#include "EtcBlock4x4EncodingBits.h" -#include "EtcDifferentialTrys.h" -#include "EtcIndividualTrys.h" - -namespace Etc -{ - - // base class for Block4x4Encoding_RGB8 - class Block4x4Encoding_ETC1 : public Block4x4Encoding - { - public: - - Block4x4Encoding_ETC1(void); - virtual ~Block4x4Encoding_ETC1(void); - - virtual void InitFromSource(Block4x4 *a_pblockParent, - ColorFloatRGBA *a_pafrgbaSource, - - unsigned char *a_paucEncodingBits, - ErrorMetric a_errormetric); - - virtual void InitFromEncodingBits(Block4x4 *a_pblockParent, - unsigned char *a_paucEncodingBits, - ColorFloatRGBA *a_pafrgbaSource, - - ErrorMetric a_errormetric); - - virtual void PerformIteration(float a_fEffort); - - inline virtual bool GetFlip(void) - { - return m_boolFlip; - } - - inline virtual bool IsDifferential(void) - { - return m_boolDiff; - } - - virtual void SetEncodingBits(void); - - void Decode(void); - - inline ColorFloatRGBA GetColor1(void) const - { - return m_frgbaColor1; - } - - inline ColorFloatRGBA GetColor2(void) const - { - return m_frgbaColor2; - } - - inline const unsigned int * GetSelectors(void) const - { - return m_auiSelectors; - } - - inline unsigned int GetCW1(void) const - { - return m_uiCW1; - } - - inline unsigned int GetCW2(void) const - { - return m_uiCW2; - } - - inline bool HasSeverelyBentDifferentialColors(void) const - { - return m_boolSeverelyBentDifferentialColors; - } - - protected: - - static const unsigned int s_auiPixelOrderFlip0[PIXELS]; - static const unsigned int s_auiPixelOrderFlip1[PIXELS]; - static const unsigned int s_auiPixelOrderHScan[PIXELS]; - - static const unsigned int s_auiLeftPixelMapping[8]; - static const unsigned int s_auiRightPixelMapping[8]; - static const unsigned int s_auiTopPixelMapping[8]; - static const unsigned int s_auiBottomPixelMapping[8]; - - static const unsigned int SELECTOR_BITS = 2; - static const unsigned int SELECTORS = 1 << SELECTOR_BITS; - - static const unsigned int CW_BITS = 3; - static const unsigned int CW_RANGES = 1 << CW_BITS; - - static float s_aafCwTable[CW_RANGES][SELECTORS]; - static unsigned char s_aucDifferentialCwRange[256]; - - static const int MAX_DIFFERENTIAL = 3; - static const int MIN_DIFFERENTIAL = -4; - - void InitFromEncodingBits_Selectors(void); - - void PerformFirstIteration(void); - void CalculateMostLikelyFlip(void); - - void TryDifferential(bool a_boolFlip, unsigned int a_uiRadius, - int a_iGrayOffset1, int a_iGrayOffset2); - void TryDifferentialHalf(DifferentialTrys::Half *a_phalf); - - void TryIndividual(bool a_boolFlip, unsigned int a_uiRadius); - void TryIndividualHalf(IndividualTrys::Half *a_phalf); - - void TryDegenerates1(void); - void TryDegenerates2(void); - void TryDegenerates3(void); - void TryDegenerates4(void); - - void CalculateSelectors(); - void CalculateHalfOfTheSelectors(unsigned int a_uiHalf, - const unsigned int *pauiPixelMapping); - - // calculate the distance2 of r_frgbaPixel from r_frgbaTarget's gray line - inline float CalcGrayDistance2(ColorFloatRGBA &r_frgbaPixel, - ColorFloatRGBA &r_frgbaTarget) - { - float fDeltaGray = ((r_frgbaPixel.fR - r_frgbaTarget.fR) + - (r_frgbaPixel.fG - r_frgbaTarget.fG) + - (r_frgbaPixel.fB - r_frgbaTarget.fB)) / 3.0f; - - ColorFloatRGBA frgbaPointOnGrayLine = (r_frgbaTarget + fDeltaGray).ClampRGB(); - - float fDR = r_frgbaPixel.fR - frgbaPointOnGrayLine.fR; - float fDG = r_frgbaPixel.fG - frgbaPointOnGrayLine.fG; - float fDB = r_frgbaPixel.fB - frgbaPointOnGrayLine.fB; - - return (fDR*fDR) + (fDG*fDG) + (fDB*fDB); - } - - void SetEncodingBits_Selectors(void); - - // intermediate encoding - bool m_boolDiff; - bool m_boolFlip; - ColorFloatRGBA m_frgbaColor1; - ColorFloatRGBA m_frgbaColor2; - unsigned int m_uiCW1; - unsigned int m_uiCW2; - unsigned int m_auiSelectors[PIXELS]; - - // state shared between iterations - ColorFloatRGBA m_frgbaSourceAverageLeft; - ColorFloatRGBA m_frgbaSourceAverageRight; - ColorFloatRGBA m_frgbaSourceAverageTop; - ColorFloatRGBA m_frgbaSourceAverageBottom; - bool m_boolMostLikelyFlip; - - // stats - float m_fError1; // error for Etc1 half 1 - float m_fError2; // error for Etc1 half 2 - bool m_boolSeverelyBentDifferentialColors; // only valid if m_boolDiff; - - // final encoding - Block4x4EncodingBits_RGB8 *m_pencodingbitsRGB8; // or RGB8 portion of Block4x4EncodingBits_RGB8A8 - - private: - - void CalculateSourceAverages(void); - - }; - -} // namespace Etc |