--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/lcms2/utils/samples/mkcmy.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,170 @@
+//
+//  Little cms
+//  Copyright (C) 1998-2003 Marti Maria
+//
+// 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.
+//
+// THIS SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+// WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+//
+// IN NO EVENT SHALL MARTI MARIA BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
+// INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
+// OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+// WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
+// LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+// OF THIS SOFTWARE.
+//
+// Version 1.12
+
+
+#include "lcms.h"
+
+
+typedef struct {
+				cmsHPROFILE   hLab;
+				cmsHPROFILE   hRGB;
+				cmsHTRANSFORM Lab2RGB;
+				cmsHTRANSFORM RGB2Lab;
+
+				} CARGO, FAR* LPCARGO;
+
+
+	 
+ 
+
+// Our space will be CIE primaries plus a gamma of 4.5
+
+static
+int Forward(register WORD In[], register WORD Out[], register LPVOID Cargo)
+{	
+	LPCARGO C = (LPCARGO) Cargo;	
+	WORD RGB[3];
+    cmsCIELab Lab;
+
+    cmsLabEncoded2Float(&Lab, In);
+
+	printf("%g %g %g\n", Lab.L, Lab.a, Lab.b);
+
+	cmsDoTransform(C ->Lab2RGB, In, &RGB, 1);
+
+
+	Out[0] = 0xFFFF - RGB[0]; // Our CMY is negative of RGB
+	Out[1] = 0xFFFF - RGB[1]; 
+	Out[2] = 0xFFFF - RGB[2]; 
+	
+	
+	return TRUE;
+
+}
+
+
+static
+int Reverse(register WORD In[], register WORD Out[], register LPVOID Cargo)
+{	
+
+	LPCARGO C = (LPCARGO) Cargo;	
+	WORD RGB[3];
+  
+	RGB[0] = 0xFFFF - In[0];
+	RGB[1] = 0xFFFF - In[1];
+	RGB[2] = 0xFFFF - In[2];
+
+	cmsDoTransform(C ->RGB2Lab, &RGB, Out, 1);
+	
+	return TRUE;
+
+}
+
+
+
+static
+void InitCargo(LPCARGO Cargo)
+{
+	
+
+	Cargo -> hLab = cmsCreateLabProfile(NULL);
+	Cargo -> hRGB = cmsCreate_sRGBProfile();  
+	
+	Cargo->Lab2RGB = cmsCreateTransform(Cargo->hLab, TYPE_Lab_16, 
+									    Cargo ->hRGB, TYPE_RGB_16,
+										INTENT_RELATIVE_COLORIMETRIC, 
+										cmsFLAGS_NOTPRECALC);
+
+	Cargo->RGB2Lab = cmsCreateTransform(Cargo ->hRGB, TYPE_RGB_16, 
+										Cargo ->hLab, TYPE_Lab_16, 
+										INTENT_RELATIVE_COLORIMETRIC, 
+										cmsFLAGS_NOTPRECALC);
+}
+
+
+
+
+static
+void FreeCargo(LPCARGO Cargo)
+{
+	cmsDeleteTransform(Cargo ->Lab2RGB);
+	cmsDeleteTransform(Cargo ->RGB2Lab);
+	cmsCloseProfile(Cargo ->hLab);
+	cmsCloseProfile(Cargo ->hRGB);
+}
+
+	
+	
+	
+int main(void)
+{
+	LPLUT AToB0, BToA0;	
+	CARGO Cargo;
+	cmsHPROFILE hProfile;
+	
+	fprintf(stderr, "Creating lcmscmy.icm...");	
+	
+	InitCargo(&Cargo);
+
+	hProfile = cmsCreateLabProfile(NULL);
+	
+
+    AToB0 = cmsAllocLUT();
+	BToA0 = cmsAllocLUT();
+
+	cmsAlloc3DGrid(AToB0, 25, 3, 3);
+	cmsAlloc3DGrid(BToA0, 25, 3, 3);
+	
+	
+	cmsSample3DGrid(AToB0, Reverse, &Cargo, 0);
+	cmsSample3DGrid(BToA0, Forward, &Cargo, 0);
+	
+	
+    cmsAddTag(hProfile, icSigAToB0Tag, AToB0);
+	cmsAddTag(hProfile, icSigBToA0Tag, BToA0);
+
+	cmsSetColorSpace(hProfile, icSigCmyData);
+	cmsSetDeviceClass(hProfile, icSigOutputClass);
+
+	cmsAddTag(hProfile, icSigProfileDescriptionTag, "CMY ");
+    cmsAddTag(hProfile, icSigCopyrightTag,          "Copyright (c) HP, 2007. All rights reserved.");
+    cmsAddTag(hProfile, icSigDeviceMfgDescTag,      "Little cms");    
+    cmsAddTag(hProfile, icSigDeviceModelDescTag,    "CMY space");
+
+	_cmsSaveProfile(hProfile, "lcmscmy.icm");
+	
+	
+	cmsFreeLUT(AToB0);
+	cmsFreeLUT(BToA0);
+	cmsCloseProfile(hProfile);	
+	FreeCargo(&Cargo);
+	fprintf(stderr, "Done.\n");
+
+
+
+	return 0;
+}