--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/lcms2/utils/samples/mktiff8.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,150 @@
+//
+//  Little cms
+//  Copyright (C) 1998-2010 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.
+//
+// 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.
+
+// Creates a devicelink that decodes TIFF8 Lab files 
+
+#include "lcms2mt.h"
+#include <stdlib.h>
+#include <math.h>
+
+static
+double DecodeAbTIFF(double ab)
+{
+	if (ab <= 128.)
+		ab += 127.;
+	else
+		ab -= 127.;
+
+	return ab;
+}
+
+static
+cmsToneCurve* CreateStep(void)
+{
+	cmsToneCurve* Gamma;
+	cmsUInt16Number* Table;
+	int i;
+	double a;
+
+	Table = calloc(4096, sizeof(cmsUInt16Number));
+	if (Table == NULL) return NULL;
+
+	for (i=0; i < 4096; i++) {
+
+		a = (double) i * 255. / 4095.;
+
+		a = DecodeAbTIFF(a);
+
+		Table[i] = (cmsUInt16Number) floor(a * 257. + 0.5);
+	}
+
+	Gamma = cmsBuildTabulatedToneCurve16(0, 4096, Table);
+	free(Table);
+
+	return Gamma;
+}
+
+
+static
+cmsToneCurve* CreateLinear(void)
+{
+	cmsUInt16Number Linear[2] = { 0, 0xffff };
+
+	return cmsBuildTabulatedToneCurve16(0, 2, Linear);          
+}
+
+
+
+// Set the copyright and description
+static
+cmsBool SetTextTags(cmsHPROFILE hProfile)
+{
+    cmsMLU *DescriptionMLU, *CopyrightMLU;
+    cmsBool  rc = FALSE;
+  
+    DescriptionMLU  = cmsMLUalloc(0, 1);
+    CopyrightMLU    = cmsMLUalloc(0, 1);
+
+    if (DescriptionMLU == NULL || CopyrightMLU == NULL) goto Error;
+
+    if (!cmsMLUsetASCII(DescriptionMLU,  "en", "US", "Little cms Tiff8 CIELab")) goto Error;
+    if (!cmsMLUsetASCII(CopyrightMLU,    "en", "US", "Copyright (c) Marti Maria, 2010. All rights reserved.")) goto Error;
+
+    if (!cmsWriteTag(hProfile, cmsSigProfileDescriptionTag,  DescriptionMLU)) goto Error;
+    if (!cmsWriteTag(hProfile, cmsSigCopyrightTag,           CopyrightMLU)) goto Error;     
+
+    rc = TRUE;
+
+Error:
+
+    if (DescriptionMLU)
+        cmsMLUfree(DescriptionMLU);
+    if (CopyrightMLU)
+        cmsMLUfree(CopyrightMLU);
+    return rc;
+}
+
+
+int main(int argc, char *argv[])
+{
+	cmsHPROFILE hProfile;
+	cmsPipeline *AToB0;
+	cmsToneCurve* PreLinear[3];
+	cmsToneCurve *Lin, *Step;
+
+	fprintf(stderr, "Creating lcmstiff8.icm...");
+    
+    remove("lcmstiff8.icm");
+	hProfile = cmsOpenProfileFromFile("lcmstiff8.icm", "w");
+
+	// Create linearization
+	Lin  = CreateLinear();
+	Step = CreateStep();
+
+	PreLinear[0] = Lin;
+	PreLinear[1] = Step;
+	PreLinear[2] = Step;
+
+    AToB0 = cmsPipelineAlloc(0, 3, 3);
+
+	cmsPipelineInsertStage(AToB0, 
+		cmsAT_BEGIN, cmsStageAllocToneCurves(0, 3, PreLinear));
+
+	cmsSetColorSpace(hProfile, cmsSigLabData);
+	cmsSetPCS(hProfile, cmsSigLabData);
+	cmsSetDeviceClass(hProfile, cmsSigLinkClass);
+	cmsSetProfileVersion(hProfile, 4.2);
+
+    cmsWriteTag(hProfile, cmsSigAToB0Tag, AToB0);
+	
+    SetTextTags(hProfile);
+
+	cmsCloseProfile(hProfile);
+
+	cmsFreeToneCurve(Lin);
+	cmsFreeToneCurve(Step);
+	cmsPipelineFree(AToB0);
+		
+	fprintf(stderr, "Done.\n");
+
+	return 0;
+}