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Diffstat (limited to 'thirdparty/etc2comp/EtcColorFloatRGBA.h')
-rw-r--r--thirdparty/etc2comp/EtcColorFloatRGBA.h321
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diff --git a/thirdparty/etc2comp/EtcColorFloatRGBA.h b/thirdparty/etc2comp/EtcColorFloatRGBA.h
deleted file mode 100644
index f2ca2c1f71..0000000000
--- a/thirdparty/etc2comp/EtcColorFloatRGBA.h
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@@ -1,321 +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 "EtcConfig.h"
-#include "EtcColor.h"
-
-#include <math.h>
-
-namespace Etc
-{
-
- class ColorFloatRGBA
- {
- public:
-
- ColorFloatRGBA(void)
- {
- fR = fG = fB = fA = 0.0f;
- }
-
- ColorFloatRGBA(float a_fR, float a_fG, float a_fB, float a_fA)
- {
- fR = a_fR;
- fG = a_fG;
- fB = a_fB;
- fA = a_fA;
- }
-
- inline ColorFloatRGBA operator+(ColorFloatRGBA& a_rfrgba)
- {
- ColorFloatRGBA frgba;
- frgba.fR = fR + a_rfrgba.fR;
- frgba.fG = fG + a_rfrgba.fG;
- frgba.fB = fB + a_rfrgba.fB;
- frgba.fA = fA + a_rfrgba.fA;
- return frgba;
- }
-
- inline ColorFloatRGBA operator+(float a_f)
- {
- ColorFloatRGBA frgba;
- frgba.fR = fR + a_f;
- frgba.fG = fG + a_f;
- frgba.fB = fB + a_f;
- frgba.fA = fA;
- return frgba;
- }
-
- inline ColorFloatRGBA operator-(float a_f)
- {
- ColorFloatRGBA frgba;
- frgba.fR = fR - a_f;
- frgba.fG = fG - a_f;
- frgba.fB = fB - a_f;
- frgba.fA = fA;
- return frgba;
- }
-
- inline ColorFloatRGBA operator-(ColorFloatRGBA& a_rfrgba)
- {
- ColorFloatRGBA frgba;
- frgba.fR = fR - a_rfrgba.fR;
- frgba.fG = fG - a_rfrgba.fG;
- frgba.fB = fB - a_rfrgba.fB;
- frgba.fA = fA - a_rfrgba.fA;
- return frgba;
- }
-
- inline ColorFloatRGBA operator*(float a_f)
- {
- ColorFloatRGBA frgba;
- frgba.fR = fR * a_f;
- frgba.fG = fG * a_f;
- frgba.fB = fB * a_f;
- frgba.fA = fA;
-
- return frgba;
- }
-
- inline ColorFloatRGBA ScaleRGB(float a_f)
- {
- ColorFloatRGBA frgba;
- frgba.fR = a_f * fR;
- frgba.fG = a_f * fG;
- frgba.fB = a_f * fB;
- frgba.fA = fA;
-
- return frgba;
- }
-
- inline ColorFloatRGBA RoundRGB(void)
- {
- ColorFloatRGBA frgba;
- frgba.fR = roundf(fR);
- frgba.fG = roundf(fG);
- frgba.fB = roundf(fB);
-
- return frgba;
- }
-
- inline ColorFloatRGBA ToLinear()
- {
- ColorFloatRGBA frgbaLinear;
- frgbaLinear.fR = LogToLinear(fR);
- frgbaLinear.fG = LogToLinear(fG);
- frgbaLinear.fB = LogToLinear(fB);
- frgbaLinear.fA = fA;
-
- return frgbaLinear;
- }
-
- inline ColorFloatRGBA ToLog(void)
- {
- ColorFloatRGBA frgbaLog;
- frgbaLog.fR = LinearToLog(fR);
- frgbaLog.fG = LinearToLog(fG);
- frgbaLog.fB = LinearToLog(fB);
- frgbaLog.fA = fA;
-
- return frgbaLog;
- }
-
- inline static ColorFloatRGBA ConvertFromRGBA8(unsigned char a_ucR,
- unsigned char a_ucG, unsigned char a_ucB, unsigned char a_ucA)
- {
- ColorFloatRGBA frgba;
-
- frgba.fR = (float)a_ucR / 255.0f;
- frgba.fG = (float)a_ucG / 255.0f;
- frgba.fB = (float)a_ucB / 255.0f;
- frgba.fA = (float)a_ucA / 255.0f;
-
- return frgba;
- }
-
- inline static ColorFloatRGBA ConvertFromRGB4(unsigned char a_ucR4,
- unsigned char a_ucG4,
- unsigned char a_ucB4)
- {
- ColorFloatRGBA frgba;
-
- unsigned char ucR8 = (unsigned char)((a_ucR4 << 4) + a_ucR4);
- unsigned char ucG8 = (unsigned char)((a_ucG4 << 4) + a_ucG4);
- unsigned char ucB8 = (unsigned char)((a_ucB4 << 4) + a_ucB4);
-
- frgba.fR = (float)ucR8 / 255.0f;
- frgba.fG = (float)ucG8 / 255.0f;
- frgba.fB = (float)ucB8 / 255.0f;
- frgba.fA = 1.0f;
-
- return frgba;
- }
-
- inline static ColorFloatRGBA ConvertFromRGB5(unsigned char a_ucR5,
- unsigned char a_ucG5,
- unsigned char a_ucB5)
- {
- ColorFloatRGBA frgba;
-
- unsigned char ucR8 = (unsigned char)((a_ucR5 << 3) + (a_ucR5 >> 2));
- unsigned char ucG8 = (unsigned char)((a_ucG5 << 3) + (a_ucG5 >> 2));
- unsigned char ucB8 = (unsigned char)((a_ucB5 << 3) + (a_ucB5 >> 2));
-
- frgba.fR = (float)ucR8 / 255.0f;
- frgba.fG = (float)ucG8 / 255.0f;
- frgba.fB = (float)ucB8 / 255.0f;
- frgba.fA = 1.0f;
-
- return frgba;
- }
-
- inline static ColorFloatRGBA ConvertFromR6G7B6(unsigned char a_ucR6,
- unsigned char a_ucG7,
- unsigned char a_ucB6)
- {
- ColorFloatRGBA frgba;
-
- unsigned char ucR8 = (unsigned char)((a_ucR6 << 2) + (a_ucR6 >> 4));
- unsigned char ucG8 = (unsigned char)((a_ucG7 << 1) + (a_ucG7 >> 6));
- unsigned char ucB8 = (unsigned char)((a_ucB6 << 2) + (a_ucB6 >> 4));
-
- frgba.fR = (float)ucR8 / 255.0f;
- frgba.fG = (float)ucG8 / 255.0f;
- frgba.fB = (float)ucB8 / 255.0f;
- frgba.fA = 1.0f;
-
- return frgba;
- }
-
- // quantize to 4 bits, expand to 8 bits
- inline ColorFloatRGBA QuantizeR4G4B4(void) const
- {
- ColorFloatRGBA frgba = *this;
-
- // quantize to 4 bits
- frgba = frgba.ClampRGB().ScaleRGB(15.0f).RoundRGB();
- unsigned int uiR4 = (unsigned int)frgba.fR;
- unsigned int uiG4 = (unsigned int)frgba.fG;
- unsigned int uiB4 = (unsigned int)frgba.fB;
-
- // expand to 8 bits
- frgba.fR = (float) ((uiR4 << 4) + uiR4);
- frgba.fG = (float) ((uiG4 << 4) + uiG4);
- frgba.fB = (float) ((uiB4 << 4) + uiB4);
-
- frgba = frgba.ScaleRGB(1.0f/255.0f);
-
- return frgba;
- }
-
- // quantize to 5 bits, expand to 8 bits
- inline ColorFloatRGBA QuantizeR5G5B5(void) const
- {
- ColorFloatRGBA frgba = *this;
-
- // quantize to 5 bits
- frgba = frgba.ClampRGB().ScaleRGB(31.0f).RoundRGB();
- unsigned int uiR5 = (unsigned int)frgba.fR;
- unsigned int uiG5 = (unsigned int)frgba.fG;
- unsigned int uiB5 = (unsigned int)frgba.fB;
-
- // expand to 8 bits
- frgba.fR = (float)((uiR5 << 3) + (uiR5 >> 2));
- frgba.fG = (float)((uiG5 << 3) + (uiG5 >> 2));
- frgba.fB = (float)((uiB5 << 3) + (uiB5 >> 2));
-
- frgba = frgba.ScaleRGB(1.0f / 255.0f);
-
- return frgba;
- }
-
- // quantize to 6/7/6 bits, expand to 8 bits
- inline ColorFloatRGBA QuantizeR6G7B6(void) const
- {
- ColorFloatRGBA frgba = *this;
-
- // quantize to 6/7/6 bits
- ColorFloatRGBA frgba6 = frgba.ClampRGB().ScaleRGB(63.0f).RoundRGB();
- ColorFloatRGBA frgba7 = frgba.ClampRGB().ScaleRGB(127.0f).RoundRGB();
- unsigned int uiR6 = (unsigned int)frgba6.fR;
- unsigned int uiG7 = (unsigned int)frgba7.fG;
- unsigned int uiB6 = (unsigned int)frgba6.fB;
-
- // expand to 8 bits
- frgba.fR = (float)((uiR6 << 2) + (uiR6 >> 4));
- frgba.fG = (float)((uiG7 << 1) + (uiG7 >> 6));
- frgba.fB = (float)((uiB6 << 2) + (uiB6 >> 4));
-
- frgba = frgba.ScaleRGB(1.0f / 255.0f);
-
- return frgba;
- }
-
- inline ColorFloatRGBA ClampRGB(void)
- {
- ColorFloatRGBA frgba = *this;
- if (frgba.fR < 0.0f) { frgba.fR = 0.0f; }
- if (frgba.fR > 1.0f) { frgba.fR = 1.0f; }
- if (frgba.fG < 0.0f) { frgba.fG = 0.0f; }
- if (frgba.fG > 1.0f) { frgba.fG = 1.0f; }
- if (frgba.fB < 0.0f) { frgba.fB = 0.0f; }
- if (frgba.fB > 1.0f) { frgba.fB = 1.0f; }
-
- return frgba;
- }
-
- inline ColorFloatRGBA ClampRGBA(void)
- {
- ColorFloatRGBA frgba = *this;
- if (frgba.fR < 0.0f) { frgba.fR = 0.0f; }
- if (frgba.fR > 1.0f) { frgba.fR = 1.0f; }
- if (frgba.fG < 0.0f) { frgba.fG = 0.0f; }
- if (frgba.fG > 1.0f) { frgba.fG = 1.0f; }
- if (frgba.fB < 0.0f) { frgba.fB = 0.0f; }
- if (frgba.fB > 1.0f) { frgba.fB = 1.0f; }
- if (frgba.fA < 0.0f) { frgba.fA = 0.0f; }
- if (frgba.fA > 1.0f) { frgba.fA = 1.0f; }
-
- return frgba;
- }
-
- inline int IntRed(float a_fScale)
- {
- return (int)roundf(fR * a_fScale);
- }
-
- inline int IntGreen(float a_fScale)
- {
- return (int)roundf(fG * a_fScale);
- }
-
- inline int IntBlue(float a_fScale)
- {
- return (int)roundf(fB * a_fScale);
- }
-
- inline int IntAlpha(float a_fScale)
- {
- return (int)roundf(fA * a_fScale);
- }
-
- float fR, fG, fB, fA;
- };
-
-}
-
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