vcl/CppunitTest_vcl_jpeg_read_write_test.mk | 1
vcl/qa/cppunit/jpeg/JpegWriterTest.cxx | 88 ++++++++++++++++++++++++++
vcl/qa/cppunit/jpeg/data/8BitNonGrayscale.gif |binary
3 files changed, 89 insertions(+)
New commits:
commit c61623028b79f918d0ed2bc2ca47db17e68a26cb
Author: Luboš Luňák <l.lu...@collabora.com>
AuthorDate: Wed Mar 27 11:47:06 2019 +0100
Commit: Tomaž Vajngerl <qui...@gmail.com>
CommitDate: Thu Mar 28 15:44:19 2019 +0100
check that jpeg export of 8bit non-grayscale works
This checks what I fixed in 1893024c54ab173ec6262d77a05cad285c17a617
(related to tdf#116888).
Change-Id: I721017fd037d62ba75cbc962fdd9316e02085624
Reviewed-on: https://gerrit.libreoffice.org/69819
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <qui...@gmail.com>
diff --git a/vcl/CppunitTest_vcl_jpeg_read_write_test.mk
b/vcl/CppunitTest_vcl_jpeg_read_write_test.mk
index e741916bba0f..88385872b311 100644
--- a/vcl/CppunitTest_vcl_jpeg_read_write_test.mk
+++ b/vcl/CppunitTest_vcl_jpeg_read_write_test.mk
@@ -11,6 +11,7 @@ $(eval $(call
gb_CppunitTest_CppunitTest,vcl_jpeg_read_write_test))
$(eval $(call gb_CppunitTest_add_exception_objects,vcl_jpeg_read_write_test, \
vcl/qa/cppunit/jpeg/JpegReaderTest \
+ vcl/qa/cppunit/jpeg/JpegWriterTest \
))
$(eval $(call
gb_CppunitTest_use_external,vcl_jpeg_read_write_test,boost_headers))
diff --git a/vcl/qa/cppunit/jpeg/JpegWriterTest.cxx
b/vcl/qa/cppunit/jpeg/JpegWriterTest.cxx
new file mode 100644
index 000000000000..a81d0c478ff9
--- /dev/null
+++ b/vcl/qa/cppunit/jpeg/JpegWriterTest.cxx
@@ -0,0 +1,88 @@
+/* -*- 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 <test/setupvcl.hxx>
+#include <unotest/bootstrapfixturebase.hxx>
+#include <vcl/graphicfilter.hxx>
+#include <vcl/bitmapaccess.hxx>
+#include <bitmapwriteaccess.hxx>
+#include <tools/stream.hxx>
+
+static OUString const gaDataUrl("/vcl/qa/cppunit/jpeg/data/");
+
+class JpegWriterTest : public test::BootstrapFixtureBase
+{
+ OUString getFullUrl(const OUString& sFileName)
+ {
+ return m_directories.getURLFromSrc(gaDataUrl) + sFileName;
+ }
+
+ BitmapEx load(const OUString& aURL);
+ BitmapEx roundtripJPG(const BitmapEx& bitmap);
+ BitmapEx roundtripJPG(const OUString& aURL);
+
+public:
+ void testWrite8BitNonGrayscale();
+
+ CPPUNIT_TEST_SUITE(JpegWriterTest);
+ CPPUNIT_TEST(testWrite8BitNonGrayscale);
+ CPPUNIT_TEST_SUITE_END();
+};
+
+BitmapEx JpegWriterTest::load(const OUString& aURL)
+{
+ GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
+ Graphic aGraphic;
+ SvFileStream aFileStream(aURL, StreamMode::READ);
+ ErrCode bResult = rFilter.ImportGraphic(aGraphic, aURL, aFileStream);
+ CPPUNIT_ASSERT_EQUAL(ERRCODE_NONE, bResult);
+ return aGraphic.GetBitmapEx();
+}
+
+BitmapEx JpegWriterTest::roundtripJPG(const OUString& aURL) { return
roundtripJPG(load(aURL)); }
+
+BitmapEx JpegWriterTest::roundtripJPG(const BitmapEx& bitmap)
+{
+ SvMemoryStream stream;
+ GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
+ sal_uInt16 exportFormatJPG =
rFilter.GetExportFormatNumberForShortName(JPG_SHORTNAME);
+ Graphic aExportGraphic(bitmap);
+ ErrCode bResult = rFilter.ExportGraphic(aExportGraphic, "memory", stream,
exportFormatJPG);
+ CPPUNIT_ASSERT_EQUAL(ERRCODE_NONE, bResult);
+ stream.Seek(0);
+ Graphic aImportGraphic;
+ sal_uInt16 importFormatJPG =
rFilter.GetImportFormatNumberForShortName(JPG_SHORTNAME);
+ bResult = rFilter.ImportGraphic(aImportGraphic, "memory", stream,
importFormatJPG);
+ CPPUNIT_ASSERT_EQUAL(ERRCODE_NONE, bResult);
+ return aImportGraphic.GetBitmapEx();
+}
+
+void JpegWriterTest::testWrite8BitNonGrayscale()
+{
+ Bitmap bitmap =
roundtripJPG(getFullUrl("8BitNonGrayscale.gif")).GetBitmap();
+ Bitmap::ScopedReadAccess access(bitmap);
+ const ScanlineFormat format = access->GetScanlineFormat();
+ // Check that it's still 8bit grayscale.
+ CPPUNIT_ASSERT_EQUAL(ScanlineFormat::N8BitPal, format);
+ // The original image has grayscale palette, just with entries in a
different order,
+ // so do not check for non-grayscale, the roundtrip apparently fixes that.
What's important
+ // is the content.
+ // CPPUNIT_ASSERT(!bitmap.HasGreyPalette());
+ // Check that the content is valid.
+ CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_WHITE), access->GetColor(0, 0));
+ CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_WHITE), access->GetColor(0,
access->Width() - 1));
+ CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_WHITE),
access->GetColor(access->Height() - 1, 0));
+ CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_BLACK),
+ access->GetColor(access->Height() - 1,
access->Width() - 1));
+}
+
+CPPUNIT_TEST_SUITE_REGISTRATION(JpegWriterTest);
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/qa/cppunit/jpeg/data/8BitNonGrayscale.gif
b/vcl/qa/cppunit/jpeg/data/8BitNonGrayscale.gif
new file mode 100644
index 000000000000..2953109491c4
Binary files /dev/null and b/vcl/qa/cppunit/jpeg/data/8BitNonGrayscale.gif
differ
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