1 files changed, 149 insertions, 0 deletions
diff --git a/tests/benchmarks/quick/colorresolving/data/tst_colorresolving.qml b/tests/benchmarks/quick/colorresolving/data/tst_colorresolving.qml
new file mode 100644
index 0000000000..37aecaa3a4
--- /dev/null
+++ b/tests/benchmarks/quick/colorresolving/data/tst_colorresolving.qml
@@ -0,0 +1,149 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+import QtTest 1.2
+import QtQuick 6.0
+
+TestCase {
+    id: testCase
+    width: 800
+    height: 600
+    visible: true
+    when: windowShown
+
+    property var items: []
+    property int items_count: 1000
+    property int itemWidth : 50
+    property int itemHeight: 50
+
+    // A reference point (added upon request)
+    function benchmark_do_nothing_with_palettes() {}
+
+    // This test passes through all items in tree to resolve a color. No extra palettes created.
+    // Should be blazingly fast (approx. 0.01 msecs for 999 items).
+    function benchmark_color_lookup() {
+        // Make last item "visible" and create its palette
+        items[items_count - 1].color = items[items_count - 1].palette.button
+
+        compare(items[0].palette.button, items[items_count - 1].palette.button,
+                "Color is not propagated to the last element.")
+    }
+
+    // This test creates palettes for all elements in the tree.
+    function benchmark_create_all_palettes(data) {
+        populate_palettes()
+        check_palettes()
+    }
+
+    // This test creates and resolves palettes for all elements in the tree.
+    function benchmark_create_and_resolve_all_palettes() {
+        populate_palettes()
+        resolve_palettes()
+        check_palettes()
+    }
+
+    function init() {
+        // Re-create all items on each iteration of the benchmark.
+
+        var componentStr = "import QtQuick 6.0;
+
+                            Rectangle {
+                                x: mapFromItem(testCase, testCase.randomX(), testCase.randomY()).x
+                                y: mapFromItem(testCase, testCase.randomX(), testCase.randomY()).y
+
+                                color: \"#7F696969\"
+
+                                width: testCase.itemWidth
+                                height: testCase.itemHeight
+                            }";
+        items.push(createTemporaryQmlObject(componentStr, testCase))
+        for (var i = 1; i < items_count; ++i) {
+            items.push(createTemporaryQmlObject(componentStr, items[i - 1]))
+        }
+
+        // Create a pallet for item 0
+        items[0].palette.button = randomRgba()
+
+        // Make item "visible" (can be overlapped by children)
+        items[0].color = items[0].palette.button
+    }
+
+    function cleanup() {
+        // Explicitly remove all "temporary" items to make sure that a memory
+        // will be released after each iteration of the benchmark.
+        for (var i = 0; i < items_count; ++i) {
+            items[i].destroy();
+        }
+
+        items = [];
+    }
+
+    function randomColorComponent() {
+        return Math.floor(Math.random() * 256) / 255.0;
+    }
+
+    function randomRgba() {
+        return Qt.rgba(randomColorComponent(),
+                       randomColorComponent(),
+                       randomColorComponent(),
+                       randomColorComponent());
+    }
+
+    function randomCoordinate(len, itemLen) { return Math.floor(Math.random() * (len - itemLen + 1)); }
+    function randomX() { return randomCoordinate(width, itemWidth); }
+    function randomY() { return randomCoordinate(height, itemHeight); }
+
+    function populate_palettes() {
+        for (var i = 1; i < items_count; ++i) {
+            items[i].color = items[i].palette.button
+        }
+    }
+
+    function check_palettes() {
+        for (var j = 1; j < items_count; ++j) {
+            compare(items[j - 1].palette.button, items[j].palette.button,
+                    "Color is not propagated to the next child element.")
+        }
+    }
+
+    function resolve_palettes() {
+        // The loop is just in case. Doesn't affect the benchmark
+        do {
+            var randomColor = randomRgba()
+        } while (items[0].palette.button === randomColor)
+
+        items[0].palette.button = randomColor
+    }
+}