[qcms] Provide an API to compute xyY gamut area relative to NTSC 1953

third_party/qcms/src/tests/qcms_test_ntsc_gamut.c

Index: third_party/qcms/src/tests/qcms_test_ntsc_gamut.c
diff --git a/third_party/qcms/src/tests/qcms_test_ntsc_gamut.c b/third_party/qcms/src/tests/qcms_test_ntsc_gamut.c
new file mode 100644
index 0000000000000000000000000000000000000000..e025594923016e63bf5b2dd081ddb489750c7efa
--- /dev/null
+++ b/third_party/qcms/src/tests/qcms_test_ntsc_gamut.c
@@ -0,0 +1,73 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.

[Noel Gordon, 2016/02/17 10:42:24]

nit: 2015 -> 2016.

[radu.velea, 2016/02/17 11:31:00]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the Chromium LICENSE file.
+
+#include "qcms_test_util.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+static qcms_bool invalid_rgb_color_profile(qcms_profile *profile)
+{
+    return rgbData != qcms_profile_get_color_space(profile) || qcms_profile_is_bogus(profile);
+}
+
+static int qcms_test_ntsc_gamut(size_t width,
+        size_t height,
+        int iterations,
+        const char *input_path,
+        const char *referece_path,
+        const int force_software)
+{
+    qcms_profile *input_profile;
+    qcms_profile *reference_profile = qcms_profile_sRGB();
+    qcms_transform *transform;
+    float input_gamut_metric, reference_gamut_metric;
+
+    if (input_path == NULL) {

[Noel Gordon, 2016/02/17 10:42:25]

if (!input_path)

[radu.velea, 2016/02/17 11:31:00]

Done.

+        fprintf(stderr, "%s: please provide valid ICC profiles via -i/o options\n", __FUNCTION__);
+        return EXIT_FAILURE;
+    }
+
+    input_profile = qcms_profile_from_path(input_path);
+    if (!input_profile || invalid_rgb_color_profile(input_profile)) {
+        fprintf(stderr, "Invalid input profile\n");
+        return EXIT_FAILURE;
+    }
+
+    transform = qcms_transform_create(input_profile, QCMS_DATA_RGBA_8, reference_profile, QCMS_DATA_RGBA_8, QCMS_INTENT_DEFAULT);
+    if (!transform) {
+        fprintf(stderr, "Could not create transform\n");
+        return EXIT_FAILURE;
+    }
+    else if (!(transform->transform_flags & TRANSFORM_FLAG_MATRIX)) {

[Noel Gordon, 2016/02/17 10:42:24]

nite: space before this line and then write it as ...

if (!(transform->transform_flags & TRANSFORM_FLAG_MATRIX)) {

[radu.velea, 2016/02/17 11:31:00]

Done.

+        fprintf(stderr, "Transform is not matrix\n");
+        qcms_transform_release(transform);
+        qcms_profile_release(input_profile);
+        qcms_profile_release(reference_profile);
+        return EXIT_FAILURE;
+    }
+
+    printf("NTSC 1953 relative gamut area test\n");
+
+    input_gamut_metric = qcms_profile_ntsc_relative_gamut_size(input_profile);
+    printf("Input profile\n\tDescription: %s\n\tNTSC relative gamut area: %.3f %%\n",
+            input_profile->description, input_gamut_metric);
+
+    reference_gamut_metric = qcms_profile_ntsc_relative_gamut_size(reference_profile);
+    printf("Internal reference profile\n\tDescription: %s\n\tNTSC relative gamut area: %.3f %%\n",
+            reference_profile->description, reference_gamut_metric);
+
+    qcms_transform_release(transform);
+    qcms_profile_release(input_profile);
+    qcms_profile_release(reference_profile);
+
+    return 0;
+}
+
+struct qcms_test_case qcms_test_ntsc_gamut_info = {
+        "qcms_test_ntsc_gamut",
+        qcms_test_ntsc_gamut,
+        QCMS_TEST_DISABLED
+};