Unittests for bugs with 1bit images rendering problems

Fix was done in 25cd843664919974f0d21ca7a0b02cc43e9eeabb and has
impact on tdf104141, tdf113918, tdf115297 and some others.

Change-Id: I8868dc1463b6f30b871a4f1b3129657f5bcb38f3
Reviewed-on: https://gerrit.libreoffice.org/51855
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

3 files changed, 96 insertions, 0 deletions

diff --git a/vcl/qa/cppunit/bitmaprender/BitmapRenderTest.cxx b/vcl/qa/cppunit/bitmaprender/BitmapRenderTest.cxx
new file mode 100644
index 000000000000..2ee32a812d55
--- /dev/null
+++ b/vcl/qa/cppunit/bitmaprender/BitmapRenderTest.cxx
@@ -0,0 +1,96 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <unotest/filters-test.hxx>
+#include <test/bootstrapfixture.hxx>
+
+#include <vcl/virdev.hxx>
+#include <vcl/salbtype.hxx>
+#include <vcl/bitmapaccess.hxx>
+#include <vcl/wrkwin.hxx>
+
+#include <tools/stream.hxx>
+#include <vcl/pngwrite.hxx>
+
+#include <vcl/graphicfilter.hxx>
+
+class BitmapRenderTest : public test::BootstrapFixture
+{
+    OUString maDataUrl;
+
+    OUString getFullUrl(const OUString& sFileName)
+    {
+        return m_directories.getURLFromSrc(maDataUrl) + sFileName;
+    }
+
+public:
+    BitmapRenderTest()
+        : BootstrapFixture(true, false)
+        , maDataUrl("/vcl/qa/cppunit/bitmaprender/data/")
+    {
+    }
+
+    void testTdf104141();
+    void testTdf113918();
+
+    CPPUNIT_TEST_SUITE(BitmapRenderTest);
+    CPPUNIT_TEST(testTdf104141);
+    CPPUNIT_TEST(testTdf113918);
+    CPPUNIT_TEST_SUITE_END();
+};
+
+void BitmapRenderTest::testTdf104141()
+{
+    ScopedVclPtrInstance<VirtualDevice> pVDev;
+    pVDev->SetOutputSizePixel(Size(400, 400));
+    pVDev->SetBackground(Wallpaper(COL_GREEN));
+    pVDev->Erase();
+
+    // Load animated GIF and draw it on green background
+    GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
+    Graphic aGraphic;
+    const OUString aURL(getFullUrl("tdf104141.gif"));
+    SvFileStream aFileStream(aURL, StreamMode::READ);
+    ErrCode bResult = rFilter.ImportGraphic(aGraphic, aURL, aFileStream);
+    CPPUNIT_ASSERT_EQUAL(ERRCODE_NONE, bResult);
+    BitmapEx aBitmap = aGraphic.GetBitmapEx();
+    pVDev->DrawBitmapEx(Point(20, 20), aBitmap);
+
+    // Check drawing resuts: ensure that it contains transparent (green) pixels
+#if !defined MACOSX //TODO: on Mac colors are drifted, so exact compare fails
+    CPPUNIT_ASSERT_EQUAL(COL_GREEN, pVDev->GetPixel(Point(21, 21)));
+#endif
+}
+
+void BitmapRenderTest::testTdf113918()
+{
+    ScopedVclPtrInstance<VirtualDevice> pVDev;
+    pVDev->SetOutputSizePixel(Size(2480, 3508));
+    pVDev->SetBackground(Wallpaper(COL_GREEN));
+    pVDev->Erase();
+
+    GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
+    Graphic aGraphic;
+    const OUString aURL(getFullUrl("tdf113918.png"));
+    SvFileStream aFileStream(aURL, StreamMode::READ);
+    ErrCode bResult = rFilter.ImportGraphic(aGraphic, aURL, aFileStream);
+    CPPUNIT_ASSERT_EQUAL(ERRCODE_NONE, bResult);
+    BitmapEx aBitmap = aGraphic.GetBitmapEx();
+    pVDev->DrawBitmapEx(Point(0, 0), aBitmap);
+
+    // Ensure that image is drawn with gray color from palette
+    CPPUNIT_ASSERT_EQUAL(COL_WHITE, pVDev->GetPixel(Point(21, 21)));
+    CPPUNIT_ASSERT_EQUAL(Color(0x979797), pVDev->GetPixel(Point(1298, 1368)));
+}
+
+CPPUNIT_TEST_SUITE_REGISTRATION(BitmapRenderTest);
+
+CPPUNIT_PLUGIN_IMPLEMENT();
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/qa/cppunit/bitmaprender/data/tdf104141.gif b/vcl/qa/cppunit/bitmaprender/data/tdf104141.gif
new file mode 100644
index 000000000000..d6390fdaa3c9
--- /dev/null
+++ b/vcl/qa/cppunit/bitmaprender/data/tdf104141.gif
diff --git a/vcl/qa/cppunit/bitmaprender/data/tdf113918.png b/vcl/qa/cppunit/bitmaprender/data/tdf113918.png
new file mode 100644
index 000000000000..dd49897d99ff
--- /dev/null
+++ b/vcl/qa/cppunit/bitmaprender/data/tdf113918.png