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-rw-r--r--third_party/lcms2-2.6/src/cmscam02.c486
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diff --git a/third_party/lcms2-2.6/src/cmscam02.c b/third_party/lcms2-2.6/src/cmscam02.c
deleted file mode 100644
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--- a/third_party/lcms2-2.6/src/cmscam02.c
+++ /dev/null
@@ -1,486 +0,0 @@
-//---------------------------------------------------------------------------------
-//
-// Little Color Management System
-// Copyright (c) 1998-2012 Marti Maria Saguer
-//
-// Permission is hereby granted, free of charge, to any person obtaining
-// a copy of this software and associated documentation files (the "Software"),
-// to deal in the Software without restriction, including without limitation
-// the rights to use, copy, modify, merge, publish, distribute, sublicense,
-// and/or sell copies of the Software, and to permit persons to whom the Software
-// is furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
-// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-//
-//---------------------------------------------------------------------------------
-//
-
-#include "lcms2_internal.h"
-
-// CIECAM 02 appearance model. Many thanks to Jordi Vilar for the debugging.
-
-// ---------- Implementation --------------------------------------------
-
-typedef struct {
-
- cmsFloat64Number XYZ[3];
- cmsFloat64Number RGB[3];
- cmsFloat64Number RGBc[3];
- cmsFloat64Number RGBp[3];
- cmsFloat64Number RGBpa[3];
- cmsFloat64Number a, b, h, e, H, A, J, Q, s, t, C, M;
- cmsFloat64Number abC[2];
- cmsFloat64Number abs[2];
- cmsFloat64Number abM[2];
-
-} CAM02COLOR;
-
-typedef struct {
-
- CAM02COLOR adoptedWhite;
- cmsFloat64Number LA, Yb;
- cmsFloat64Number F, c, Nc;
- cmsUInt32Number surround;
- cmsFloat64Number n, Nbb, Ncb, z, FL, D;
-
- cmsContext ContextID;
-
-} cmsCIECAM02;
-
-
-static
-cmsFloat64Number compute_n(cmsCIECAM02* pMod)
-{
- return (pMod -> Yb / pMod -> adoptedWhite.XYZ[1]);
-}
-
-static
-cmsFloat64Number compute_z(cmsCIECAM02* pMod)
-{
- return (1.48 + pow(pMod -> n, 0.5));
-}
-
-static
-cmsFloat64Number computeNbb(cmsCIECAM02* pMod)
-{
- return (0.725 * pow((1.0 / pMod -> n), 0.2));
-}
-
-static
-cmsFloat64Number computeFL(cmsCIECAM02* pMod)
-{
- cmsFloat64Number k, FL;
-
- k = 1.0 / ((5.0 * pMod->LA) + 1.0);
- FL = 0.2 * pow(k, 4.0) * (5.0 * pMod->LA) + 0.1 *
- (pow((1.0 - pow(k, 4.0)), 2.0)) *
- (pow((5.0 * pMod->LA), (1.0 / 3.0)));
-
- return FL;
-}
-
-static
-cmsFloat64Number computeD(cmsCIECAM02* pMod)
-{
- cmsFloat64Number D;
-
- D = pMod->F - (1.0/3.6)*(exp(((-pMod ->LA-42) / 92.0)));
-
- return D;
-}
-
-
-static
-CAM02COLOR XYZtoCAT02(CAM02COLOR clr)
-{
- clr.RGB[0] = (clr.XYZ[0] * 0.7328) + (clr.XYZ[1] * 0.4296) + (clr.XYZ[2] * -0.1624);
- clr.RGB[1] = (clr.XYZ[0] * -0.7036) + (clr.XYZ[1] * 1.6975) + (clr.XYZ[2] * 0.0061);
- clr.RGB[2] = (clr.XYZ[0] * 0.0030) + (clr.XYZ[1] * 0.0136) + (clr.XYZ[2] * 0.9834);
-
- return clr;
-}
-
-static
-CAM02COLOR ChromaticAdaptation(CAM02COLOR clr, cmsCIECAM02* pMod)
-{
- cmsUInt32Number i;
-
- for (i = 0; i < 3; i++) {
- clr.RGBc[i] = ((pMod -> adoptedWhite.XYZ[1] *
- (pMod->D / pMod -> adoptedWhite.RGB[i])) +
- (1.0 - pMod->D)) * clr.RGB[i];
- }
-
- return clr;
-}
-
-
-static
-CAM02COLOR CAT02toHPE(CAM02COLOR clr)
-{
- cmsFloat64Number M[9];
-
- M[0] =(( 0.38971 * 1.096124) + (0.68898 * 0.454369) + (-0.07868 * -0.009628));
- M[1] =(( 0.38971 * -0.278869) + (0.68898 * 0.473533) + (-0.07868 * -0.005698));
- M[2] =(( 0.38971 * 0.182745) + (0.68898 * 0.072098) + (-0.07868 * 1.015326));
- M[3] =((-0.22981 * 1.096124) + (1.18340 * 0.454369) + ( 0.04641 * -0.009628));
- M[4] =((-0.22981 * -0.278869) + (1.18340 * 0.473533) + ( 0.04641 * -0.005698));
- M[5] =((-0.22981 * 0.182745) + (1.18340 * 0.072098) + ( 0.04641 * 1.015326));
- M[6] =(-0.009628);
- M[7] =(-0.005698);
- M[8] =( 1.015326);
-
- clr.RGBp[0] = (clr.RGBc[0] * M[0]) + (clr.RGBc[1] * M[1]) + (clr.RGBc[2] * M[2]);
- clr.RGBp[1] = (clr.RGBc[0] * M[3]) + (clr.RGBc[1] * M[4]) + (clr.RGBc[2] * M[5]);
- clr.RGBp[2] = (clr.RGBc[0] * M[6]) + (clr.RGBc[1] * M[7]) + (clr.RGBc[2] * M[8]);
-
- return clr;
-}
-
-static
-CAM02COLOR NonlinearCompression(CAM02COLOR clr, cmsCIECAM02* pMod)
-{
- cmsUInt32Number i;
- cmsFloat64Number temp;
-
- for (i = 0; i < 3; i++) {
- if (clr.RGBp[i] < 0) {
-
- temp = pow((-1.0 * pMod->FL * clr.RGBp[i] / 100.0), 0.42);
- clr.RGBpa[i] = (-1.0 * 400.0 * temp) / (temp + 27.13) + 0.1;
- }
- else {
- temp = pow((pMod->FL * clr.RGBp[i] / 100.0), 0.42);
- clr.RGBpa[i] = (400.0 * temp) / (temp + 27.13) + 0.1;
- }
- }
-
- clr.A = (((2.0 * clr.RGBpa[0]) + clr.RGBpa[1] +
- (clr.RGBpa[2] / 20.0)) - 0.305) * pMod->Nbb;
-
- return clr;
-}
-
-static
-CAM02COLOR ComputeCorrelates(CAM02COLOR clr, cmsCIECAM02* pMod)
-{
- cmsFloat64Number a, b, temp, e, t, r2d, d2r;
-
- a = clr.RGBpa[0] - (12.0 * clr.RGBpa[1] / 11.0) + (clr.RGBpa[2] / 11.0);
- b = (clr.RGBpa[0] + clr.RGBpa[1] - (2.0 * clr.RGBpa[2])) / 9.0;
-
- r2d = (180.0 / 3.141592654);
- if (a == 0) {
- if (b == 0) clr.h = 0;
- else if (b > 0) clr.h = 90;
- else clr.h = 270;
- }
- else if (a > 0) {
- temp = b / a;
- if (b > 0) clr.h = (r2d * atan(temp));
- else if (b == 0) clr.h = 0;
- else clr.h = (r2d * atan(temp)) + 360;
- }
- else {
- temp = b / a;
- clr.h = (r2d * atan(temp)) + 180;
- }
-
- d2r = (3.141592654 / 180.0);
- e = ((12500.0 / 13.0) * pMod->Nc * pMod->Ncb) *
- (cos((clr.h * d2r + 2.0)) + 3.8);
-
- if (clr.h < 20.14) {
- temp = ((clr.h + 122.47)/1.2) + ((20.14 - clr.h)/0.8);
- clr.H = 300 + (100*((clr.h + 122.47)/1.2)) / temp;
- }
- else if (clr.h < 90.0) {
- temp = ((clr.h - 20.14)/0.8) + ((90.00 - clr.h)/0.7);
- clr.H = (100*((clr.h - 20.14)/0.8)) / temp;
- }
- else if (clr.h < 164.25) {
- temp = ((clr.h - 90.00)/0.7) + ((164.25 - clr.h)/1.0);
- clr.H = 100 + ((100*((clr.h - 90.00)/0.7)) / temp);
- }
- else if (clr.h < 237.53) {
- temp = ((clr.h - 164.25)/1.0) + ((237.53 - clr.h)/1.2);
- clr.H = 200 + ((100*((clr.h - 164.25)/1.0)) / temp);
- }
- else {
- temp = ((clr.h - 237.53)/1.2) + ((360 - clr.h + 20.14)/0.8);
- clr.H = 300 + ((100*((clr.h - 237.53)/1.2)) / temp);
- }
-
- clr.J = 100.0 * pow((clr.A / pMod->adoptedWhite.A),
- (pMod->c * pMod->z));
-
- clr.Q = (4.0 / pMod->c) * pow((clr.J / 100.0), 0.5) *
- (pMod->adoptedWhite.A + 4.0) * pow(pMod->FL, 0.25);
-
- t = (e * pow(((a * a) + (b * b)), 0.5)) /
- (clr.RGBpa[0] + clr.RGBpa[1] +
- ((21.0 / 20.0) * clr.RGBpa[2]));
-
- clr.C = pow(t, 0.9) * pow((clr.J / 100.0), 0.5) *
- pow((1.64 - pow(0.29, pMod->n)), 0.73);
-
- clr.M = clr.C * pow(pMod->FL, 0.25);
- clr.s = 100.0 * pow((clr.M / clr.Q), 0.5);
-
- return clr;
-}
-
-
-static
-CAM02COLOR InverseCorrelates(CAM02COLOR clr, cmsCIECAM02* pMod)
-{
-
- cmsFloat64Number t, e, p1, p2, p3, p4, p5, hr, d2r;
- d2r = 3.141592654 / 180.0;
-
- t = pow( (clr.C / (pow((clr.J / 100.0), 0.5) *
- (pow((1.64 - pow(0.29, pMod->n)), 0.73)))),
- (1.0 / 0.9) );
- e = ((12500.0 / 13.0) * pMod->Nc * pMod->Ncb) *
- (cos((clr.h * d2r + 2.0)) + 3.8);
-
- clr.A = pMod->adoptedWhite.A * pow(
- (clr.J / 100.0),
- (1.0 / (pMod->c * pMod->z)));
-
- p1 = e / t;
- p2 = (clr.A / pMod->Nbb) + 0.305;
- p3 = 21.0 / 20.0;
-
- hr = clr.h * d2r;
-
- if (fabs(sin(hr)) >= fabs(cos(hr))) {
- p4 = p1 / sin(hr);
- clr.b = (p2 * (2.0 + p3) * (460.0 / 1403.0)) /
- (p4 + (2.0 + p3) * (220.0 / 1403.0) *
- (cos(hr) / sin(hr)) - (27.0 / 1403.0) +
- p3 * (6300.0 / 1403.0));
- clr.a = clr.b * (cos(hr) / sin(hr));
- }
- else {
- p5 = p1 / cos(hr);
- clr.a = (p2 * (2.0 + p3) * (460.0 / 1403.0)) /
- (p5 + (2.0 + p3) * (220.0 / 1403.0) -
- ((27.0 / 1403.0) - p3 * (6300.0 / 1403.0)) *
- (sin(hr) / cos(hr)));
- clr.b = clr.a * (sin(hr) / cos(hr));
- }
-
- clr.RGBpa[0] = ((460.0 / 1403.0) * p2) +
- ((451.0 / 1403.0) * clr.a) +
- ((288.0 / 1403.0) * clr.b);
- clr.RGBpa[1] = ((460.0 / 1403.0) * p2) -
- ((891.0 / 1403.0) * clr.a) -
- ((261.0 / 1403.0) * clr.b);
- clr.RGBpa[2] = ((460.0 / 1403.0) * p2) -
- ((220.0 / 1403.0) * clr.a) -
- ((6300.0 / 1403.0) * clr.b);
-
- return clr;
-}
-
-static
-CAM02COLOR InverseNonlinearity(CAM02COLOR clr, cmsCIECAM02* pMod)
-{
- cmsUInt32Number i;
- cmsFloat64Number c1;
-
- for (i = 0; i < 3; i++) {
- if ((clr.RGBpa[i] - 0.1) < 0) c1 = -1;
- else c1 = 1;
- clr.RGBp[i] = c1 * (100.0 / pMod->FL) *
- pow(((27.13 * fabs(clr.RGBpa[i] - 0.1)) /
- (400.0 - fabs(clr.RGBpa[i] - 0.1))),
- (1.0 / 0.42));
- }
-
- return clr;
-}
-
-static
-CAM02COLOR HPEtoCAT02(CAM02COLOR clr)
-{
- cmsFloat64Number M[9];
-
- M[0] = (( 0.7328 * 1.910197) + (0.4296 * 0.370950));
- M[1] = (( 0.7328 * -1.112124) + (0.4296 * 0.629054));
- M[2] = (( 0.7328 * 0.201908) + (0.4296 * 0.000008) - 0.1624);
- M[3] = ((-0.7036 * 1.910197) + (1.6975 * 0.370950));
- M[4] = ((-0.7036 * -1.112124) + (1.6975 * 0.629054));
- M[5] = ((-0.7036 * 0.201908) + (1.6975 * 0.000008) + 0.0061);
- M[6] = (( 0.0030 * 1.910197) + (0.0136 * 0.370950));
- M[7] = (( 0.0030 * -1.112124) + (0.0136 * 0.629054));
- M[8] = (( 0.0030 * 0.201908) + (0.0136 * 0.000008) + 0.9834);;
-
- clr.RGBc[0] = (clr.RGBp[0] * M[0]) + (clr.RGBp[1] * M[1]) + (clr.RGBp[2] * M[2]);
- clr.RGBc[1] = (clr.RGBp[0] * M[3]) + (clr.RGBp[1] * M[4]) + (clr.RGBp[2] * M[5]);
- clr.RGBc[2] = (clr.RGBp[0] * M[6]) + (clr.RGBp[1] * M[7]) + (clr.RGBp[2] * M[8]);
- return clr;
-}
-
-
-static
-CAM02COLOR InverseChromaticAdaptation(CAM02COLOR clr, cmsCIECAM02* pMod)
-{
- cmsUInt32Number i;
- for (i = 0; i < 3; i++) {
- clr.RGB[i] = clr.RGBc[i] /
- ((pMod->adoptedWhite.XYZ[1] * pMod->D / pMod->adoptedWhite.RGB[i]) + 1.0 - pMod->D);
- }
- return clr;
-}
-
-
-static
-CAM02COLOR CAT02toXYZ(CAM02COLOR clr)
-{
- clr.XYZ[0] = (clr.RGB[0] * 1.096124) + (clr.RGB[1] * -0.278869) + (clr.RGB[2] * 0.182745);
- clr.XYZ[1] = (clr.RGB[0] * 0.454369) + (clr.RGB[1] * 0.473533) + (clr.RGB[2] * 0.072098);
- clr.XYZ[2] = (clr.RGB[0] * -0.009628) + (clr.RGB[1] * -0.005698) + (clr.RGB[2] * 1.015326);
-
- return clr;
-}
-
-
-cmsHANDLE CMSEXPORT cmsCIECAM02Init(cmsContext ContextID, const cmsViewingConditions* pVC)
-{
- cmsCIECAM02* lpMod;
-
- _cmsAssert(pVC != NULL);
-
- if((lpMod = (cmsCIECAM02*) _cmsMallocZero(ContextID, sizeof(cmsCIECAM02))) == NULL) {
- return NULL;
- }
-
- lpMod ->ContextID = ContextID;
-
- lpMod ->adoptedWhite.XYZ[0] = pVC ->whitePoint.X;
- lpMod ->adoptedWhite.XYZ[1] = pVC ->whitePoint.Y;
- lpMod ->adoptedWhite.XYZ[2] = pVC ->whitePoint.Z;
-
- lpMod -> LA = pVC ->La;
- lpMod -> Yb = pVC ->Yb;
- lpMod -> D = pVC ->D_value;
- lpMod -> surround = pVC ->surround;
-
- switch (lpMod -> surround) {
-
-
- case CUTSHEET_SURROUND:
- lpMod->F = 0.8;
- lpMod->c = 0.41;
- lpMod->Nc = 0.8;
- break;
-
- case DARK_SURROUND:
- lpMod -> F = 0.8;
- lpMod -> c = 0.525;
- lpMod -> Nc = 0.8;
- break;
-
- case DIM_SURROUND:
- lpMod -> F = 0.9;
- lpMod -> c = 0.59;
- lpMod -> Nc = 0.95;
- break;
-
- default:
- // Average surround
- lpMod -> F = 1.0;
- lpMod -> c = 0.69;
- lpMod -> Nc = 1.0;
- }
-
- lpMod -> n = compute_n(lpMod);
- lpMod -> z = compute_z(lpMod);
- lpMod -> Nbb = computeNbb(lpMod);
- lpMod -> FL = computeFL(lpMod);
-
- if (lpMod -> D == D_CALCULATE) {
- lpMod -> D = computeD(lpMod);
- }
-
- lpMod -> Ncb = lpMod -> Nbb;
-
- lpMod -> adoptedWhite = XYZtoCAT02(lpMod -> adoptedWhite);
- lpMod -> adoptedWhite = ChromaticAdaptation(lpMod -> adoptedWhite, lpMod);
- lpMod -> adoptedWhite = CAT02toHPE(lpMod -> adoptedWhite);
- lpMod -> adoptedWhite = NonlinearCompression(lpMod -> adoptedWhite, lpMod);
-
- return (cmsHANDLE) lpMod;
-
-}
-
-void CMSEXPORT cmsCIECAM02Done(cmsHANDLE hModel)
-{
- cmsCIECAM02* lpMod = (cmsCIECAM02*) hModel;
-
- if (lpMod) _cmsFree(lpMod ->ContextID, lpMod);
-}
-
-
-void CMSEXPORT cmsCIECAM02Forward(cmsHANDLE hModel, const cmsCIEXYZ* pIn, cmsJCh* pOut)
-{
- CAM02COLOR clr;
- cmsCIECAM02* lpMod = (cmsCIECAM02*) hModel;
-
- _cmsAssert(lpMod != NULL);
- _cmsAssert(pIn != NULL);
- _cmsAssert(pOut != NULL);
-
- memset(&clr, 0, sizeof(clr));
-
- clr.XYZ[0] = pIn ->X;
- clr.XYZ[1] = pIn ->Y;
- clr.XYZ[2] = pIn ->Z;
-
- clr = XYZtoCAT02(clr);
- clr = ChromaticAdaptation(clr, lpMod);
- clr = CAT02toHPE(clr);
- clr = NonlinearCompression(clr, lpMod);
- clr = ComputeCorrelates(clr, lpMod);
-
- pOut ->J = clr.J;
- pOut ->C = clr.C;
- pOut ->h = clr.h;
-}
-
-void CMSEXPORT cmsCIECAM02Reverse(cmsHANDLE hModel, const cmsJCh* pIn, cmsCIEXYZ* pOut)
-{
- CAM02COLOR clr;
- cmsCIECAM02* lpMod = (cmsCIECAM02*) hModel;
-
- _cmsAssert(lpMod != NULL);
- _cmsAssert(pIn != NULL);
- _cmsAssert(pOut != NULL);
-
- memset(&clr, 0, sizeof(clr));
-
- clr.J = pIn -> J;
- clr.C = pIn -> C;
- clr.h = pIn -> h;
-
- clr = InverseCorrelates(clr, lpMod);
- clr = InverseNonlinearity(clr, lpMod);
- clr = HPEtoCAT02(clr);
- clr = InverseChromaticAdaptation(clr, lpMod);
- clr = CAT02toXYZ(clr);
-
- pOut ->X = clr.XYZ[0];
- pOut ->Y = clr.XYZ[1];
- pOut ->Z = clr.XYZ[2];
-}
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