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86 lines
2.9 KiB
C++
86 lines
2.9 KiB
C++
/*
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* Copyright 2015 The Etc2Comp Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License 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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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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EtcIndividualTrys.cpp
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Gathers the results of the various encoding trys for both halves of a 4x4 block for Individual mode
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*/
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#include "EtcConfig.h"
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#include "EtcIndividualTrys.h"
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#include <assert.h>
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namespace Etc
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{
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// ----------------------------------------------------------------------------------------------------
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// construct a list of trys (encoding attempts)
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//
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// a_frgbaColor1 is the basecolor for the first half
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// a_frgbaColor2 is the basecolor for the second half
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// a_pauiPixelMapping1 is the pixel order for the first half
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// a_pauiPixelMapping2 is the pixel order for the second half
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// a_uiRadius is the amount to vary the base colors
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//
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IndividualTrys::IndividualTrys(ColorFloatRGBA a_frgbaColor1, ColorFloatRGBA a_frgbaColor2,
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const unsigned int *a_pauiPixelMapping1,
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const unsigned int *a_pauiPixelMapping2,
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unsigned int a_uiRadius)
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{
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assert(a_uiRadius <= MAX_RADIUS);
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ColorFloatRGBA frgbaQuantizedColor1 = a_frgbaColor1.QuantizeR4G4B4();
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ColorFloatRGBA frgbaQuantizedColor2 = a_frgbaColor2.QuantizeR4G4B4();
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// quantize base colors
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// ensure that trys with a_uiRadius don't overflow
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int iRed1 = MoveAwayFromEdge(frgbaQuantizedColor1.IntRed(15.0f), a_uiRadius);
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int iGreen1 = MoveAwayFromEdge(frgbaQuantizedColor1.IntGreen(15.0f), a_uiRadius);
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int iBlue1 = MoveAwayFromEdge(frgbaQuantizedColor1.IntBlue(15.0f), a_uiRadius);
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int iRed2 = MoveAwayFromEdge(frgbaQuantizedColor2.IntRed(15.0f), a_uiRadius);
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int iGreen2 = MoveAwayFromEdge(frgbaQuantizedColor2.IntGreen(15.0f), a_uiRadius);
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int iBlue2 = MoveAwayFromEdge(frgbaQuantizedColor2.IntBlue(15.0f), a_uiRadius);
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m_half1.Init(iRed1, iGreen1, iBlue1, a_pauiPixelMapping1, a_uiRadius);
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m_half2.Init(iRed2, iGreen2, iBlue2, a_pauiPixelMapping2, a_uiRadius);
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}
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// ----------------------------------------------------------------------------------------------------
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//
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void IndividualTrys::Half::Init(int a_iRed, int a_iGreen, int a_iBlue,
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const unsigned int *a_pauiPixelMapping, unsigned int a_uiRadius)
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{
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m_iRed = a_iRed;
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m_iGreen = a_iGreen;
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m_iBlue = a_iBlue;
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m_pauiPixelMapping = a_pauiPixelMapping;
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m_uiRadius = a_uiRadius;
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m_uiTrys = 0;
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}
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// ----------------------------------------------------------------------------------------------------
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//
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} // namespace Etc
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