[qcms] Update primaries used to build internal sRGB profile

third_party/qcms/src/tests/qcms_test_internal_srgb.c

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the Chromium LICENSE file.
 
 #include "qcms.h"
 #include "qcms_test_util.h"
 
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
 
-// Colorant matrix for the official sRGB IEC61966-2.1 color (D50) primaries.
+// D50 adapted color primaries of the sRGB IEC61966-2.1 color profile.
 static s15Fixed16Number sRGB_reference[3][3] = {
                 {0x06fa2 /*0.436066*/,  /*0.385147*/ 0x06299, /*0.143066*/ 0x024a0},
                 {0x038f5 /*0.222488*/,  /*0.716873*/ 0x0b785, /*0.060608*/ 0x00f84},
-                {0x00390 /*0.013916*/,  /*0.097076*/ 0x018da, /*0.714096*/ 0x0b6cf}};
+                {0x00390 /*0.013916*/,  /*0.097076*/ 0x018da, /*0.714096*/ 0x0b6cf}

[Noel Gordon, 2016/03/11 15:45:08]

Nit: One tab too many.

[radu.velea, 2016/03/11 15:55:21]

Done.

+};
+
+// Reference media white point of the sRGB IEC61966-2.1 color profile.
+static struct XYZNumber D65 = {
+                0xf351, 0x10000, 0x116cc // ( 0.950455, 1.000000, 1.089050 )

[Noel Gordon, 2016/03/11 15:45:08]

nit: One tab too many.

[radu.velea, 2016/03/11 15:55:21]

Done.

+};
 
 static int qcms_test_internal_srgb(size_t width,
                 size_t height,
                 int iterations,
                 const char *in_path,
                 const char *out_path,
                 const int force_software)
 {
         qcms_profile *profile = qcms_profile_sRGB();
         s15Fixed16Number sRGB_internal[3][3];
         s15Fixed16Number diff = 0;
         int i, j;
 
-        printf("Test qcms internal sRGB colorant matrix against official sRGB IEC61966-2.1 color (D50) primaries\n");
+        if (qcms_profile_is_bogus(profile)) {
+                fprintf(stderr, "Failure: the internal sRGB profile failed the bogus profile check\n");
+                qcms_profile_release(profile);
+                return -1;
+        }
+
+        printf("Test qcms internal sRGB color primaries against sRGB IEC61966-2.1 color primaries\n");
 
         sRGB_internal[0][0] = profile->redColorant.X;
         sRGB_internal[1][0] = profile->redColorant.Y;
         sRGB_internal[2][0] = profile->redColorant.Z;
         sRGB_internal[0][1] = profile->greenColorant.X;
         sRGB_internal[1][1] = profile->greenColorant.Y;
         sRGB_internal[2][1] = profile->greenColorant.Z;
         sRGB_internal[0][2] = profile->blueColorant.X;
         sRGB_internal[1][2] = profile->blueColorant.Y;
         sRGB_internal[2][2] = profile->blueColorant.Z;
 
         for (i = 0; i < 3; i++) {
                 for (j = 0; j < 3; j++) {
                         s15Fixed16Number tmp = sRGB_internal[i][j] - sRGB_reference[i][j];
                         printf("\t%d", tmp);
                         diff += abs(tmp);
                 }
                 printf("\n");
         }
 
+        printf("Total error = 0x%x [%.6f]\n\n", diff, diff / 65536.0);
+
+        printf("Test media white point against expected sRGB IEC61966-2.1 D65 XYZ values\n");
+        printf("Internal values = [0x%X, 0x%X, 0x%X]\n",
+                        profile->mediaWhitePoint.X, profile->mediaWhitePoint.Y, profile->mediaWhitePoint.Z);
+
+        printf("White point error = [%d, %d, %d]\n",
+                        profile->mediaWhitePoint.X - D65.X, profile->mediaWhitePoint.Y - D65.Y, profile->mediaWhitePoint.Z - D65.Z);
+
         qcms_profile_release(profile);
 
-        printf("Total error = 0x%x [%.6f]\n", diff, diff / 65536.0);
-
         return diff;
 }
 
 struct qcms_test_case qcms_test_internal_srgb_info = {
                 "qcms_test_internal_srgb",
                 qcms_test_internal_srgb,
                 QCMS_TEST_DISABLED
 };