Add A2B tables, and PCSLab support to QIcc

This finishes off ICC color space support in Qt (short of the
optional multi process elements), and includes necessary parts for
potential CMYK support (PCSLab and A2B support)

[ChangeLog][QColorSpace] ICC profiles that are not three-component
matrix based are now supported.

Task-number: QTBUG-108175
Change-Id: Ie29b17a366d9ba0ea8135e1752530d6bb19e7520
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/tests/libfuzzer/gui/painting/qcolorspace/fromiccprofile/main.cpp b/tests/libfuzzer/gui/painting/qcolorspace/fromiccprofile/main.cpp
index 85edee4149..765c332412 100644
--- a/tests/libfuzzer/gui/painting/qcolorspace/fromiccprofile/main.cpp
+++ b/tests/libfuzzer/gui/painting/qcolorspace/fromiccprofile/main.cpp
@@ -18,5 +18,18 @@ extern "C" int LLVMFuzzerTestOneInput(const char *data, size_t size) {
     static char *argv[] = {arg1, arg2, arg3, nullptr};
     static QGuiApplication qga(argc, argv);
     QColorSpace cs = QColorSpace::fromIccProfile(QByteArray::fromRawData(data, size));
+    if (cs.isValid()) {
+        cs.description();
+        QColorTransform trans1 = cs.transformationToColorSpace(QColorSpace::SRgb);
+        trans1.isIdentity();
+        QColorSpace cs2 = cs;
+        cs2.setDescription("Hello");
+        bool b = (cs == cs2);
+        QRgb color = 0xfaf8fa00;
+        color = trans1.map(color);
+        QColorTransform trans2 = QColorSpace(QColorSpace::SRgb).transformationToColorSpace(cs);
+        bool a = (trans1 == trans2);
+        color = trans2.map(color);
+    }
     return 0;
 }