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/* -*- 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/FilterConfigItem.hxx>
#include <bitmap/BitmapWriteAccess.hxx>
#include <tools/stream.hxx>
#include <vcl/graph.hxx>
#include <vcl/graphicfilter.hxx>
#include <graphic/GraphicFormatDetector.hxx>
#include <filter/WebpReader.hxx>
#include <comphelper/propertyvalue.hxx>
using namespace css;
/* Implementation of Filters test */
class WebpFilterTest : public test::FiltersTest, public test::BootstrapFixture
{
public:
WebpFilterTest()
: BootstrapFixture(true, false)
{
}
virtual bool load(const OUString&, const OUString& rURL, const OUString&, SfxFilterFlags,
SotClipboardFormatId, unsigned int) override;
/**
* Ensure CVEs remain unbroken
*/
void testCVEs();
void testRoundtripLossless();
void testRoundtripLossy();
void testReadAlphaLossless();
void testReadAlphaLossy();
void testReadNoAlphaLossless();
void testReadNoAlphaLossy();
CPPUNIT_TEST_SUITE(WebpFilterTest);
CPPUNIT_TEST(testCVEs);
CPPUNIT_TEST(testRoundtripLossless);
CPPUNIT_TEST(testRoundtripLossy);
CPPUNIT_TEST(testReadAlphaLossless);
CPPUNIT_TEST(testReadAlphaLossy);
CPPUNIT_TEST(testReadNoAlphaLossless);
CPPUNIT_TEST(testReadNoAlphaLossy);
CPPUNIT_TEST_SUITE_END();
private:
void testRoundtrip(bool lossy);
void testRead(bool lossy, bool alpha);
};
bool WebpFilterTest::load(const OUString&, const OUString& rURL, const OUString&, SfxFilterFlags,
SotClipboardFormatId, unsigned int)
{
SvFileStream aFileStream(rURL, StreamMode::READ);
Graphic aGraphic;
return ImportWebpGraphic(aFileStream, aGraphic);
}
void WebpFilterTest::testCVEs()
{
#ifndef DISABLE_CVE_TESTS
testDir(OUString(), m_directories.getURLFromSrc(u"/vcl/qa/cppunit/graphicfilter/data/webp/"));
#endif
}
void WebpFilterTest::testRoundtripLossless() { testRoundtrip(false); }
void WebpFilterTest::testRoundtripLossy() { testRoundtrip(true); }
void WebpFilterTest::testRoundtrip(bool lossy)
{
// Do not use just 2x2, lossy saving would change colors.
Bitmap aBitmap(Size(20, 20), vcl::PixelFormat::N24_BPP);
AlphaMask aAlpha(Size(20, 20));
{
BitmapScopedWriteAccess pAccess(aBitmap);
pAccess->SetFillColor(COL_WHITE);
pAccess->FillRect(tools::Rectangle(Point(0, 0), Size(10, 10)));
pAccess->SetFillColor(COL_BLACK);
pAccess->FillRect(tools::Rectangle(Point(10, 0), Size(10, 10)));
pAccess->SetFillColor(COL_LIGHTRED);
pAccess->FillRect(tools::Rectangle(Point(0, 10), Size(10, 10)));
pAccess->SetFillColor(COL_BLUE);
pAccess->FillRect(tools::Rectangle(Point(10, 10), Size(10, 10)));
AlphaScopedWriteAccess pAccessAlpha(aAlpha);
pAccessAlpha->SetFillColor(BitmapColor(0)); // opaque
pAccessAlpha->FillRect(tools::Rectangle(Point(0, 0), Size(10, 10)));
pAccessAlpha->FillRect(tools::Rectangle(Point(10, 0), Size(10, 10)));
pAccessAlpha->FillRect(tools::Rectangle(Point(0, 10), Size(10, 10)));
pAccessAlpha->SetFillColor(BitmapColor(64, 64, 64));
pAccessAlpha->FillRect(tools::Rectangle(Point(10, 10), Size(10, 10)));
}
BitmapEx aBitmapEx(aBitmap, aAlpha);
SvMemoryStream aStream;
GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
sal_uInt16 nFilterFormat = rFilter.GetExportFormatNumberForShortName(u"webp");
css::uno::Sequence<css::beans::PropertyValue> aFilterData{
comphelper::makePropertyValue("Lossless", !lossy),
comphelper::makePropertyValue("Quality", sal_Int32(100))
};
rFilter.ExportGraphic(Graphic(aBitmapEx), u"none", aStream, nFilterFormat, &aFilterData);
aStream.Seek(STREAM_SEEK_TO_BEGIN);
Graphic aGraphic;
ErrCode bResult = rFilter.ImportGraphic(aGraphic, u"none", aStream);
CPPUNIT_ASSERT_EQUAL(ERRCODE_NONE, bResult);
CPPUNIT_ASSERT_EQUAL(GfxLinkType::NativeWebp, aGraphic.GetGfxLink().GetType());
BitmapEx aResultBitmap = aGraphic.GetBitmapEx();
CPPUNIT_ASSERT_EQUAL(Size(20, 20), aResultBitmap.GetSizePixel());
CPPUNIT_ASSERT(aResultBitmap.IsAlpha());
{
Bitmap tmpBitmap = aResultBitmap.GetBitmap();
Bitmap::ScopedReadAccess pAccess(tmpBitmap);
// Note that x,y are swapped.
CPPUNIT_ASSERT_EQUAL(COL_WHITE, Color(pAccess->GetPixel(0, 0)));
CPPUNIT_ASSERT_EQUAL(COL_BLACK, Color(pAccess->GetPixel(0, 19)));
if (lossy)
{
CPPUNIT_ASSERT_LESS(sal_uInt16(3),
pAccess->GetPixel(19, 0).GetColorError(COL_LIGHTRED));
CPPUNIT_ASSERT_LESS(sal_uInt16(3), pAccess->GetPixel(19, 19).GetColorError(COL_BLUE));
}
else
{
CPPUNIT_ASSERT_EQUAL(COL_LIGHTRED, Color(pAccess->GetPixel(19, 0)));
CPPUNIT_ASSERT_EQUAL(COL_BLUE, Color(pAccess->GetPixel(19, 19)));
}
AlphaMask tmpAlpha = aResultBitmap.GetAlpha();
AlphaMask::ScopedReadAccess pAccessAlpha(tmpAlpha);
CPPUNIT_ASSERT_EQUAL(sal_uInt8(0), pAccessAlpha->GetPixelIndex(0, 0));
CPPUNIT_ASSERT_EQUAL(sal_uInt8(0), pAccessAlpha->GetPixelIndex(0, 19));
CPPUNIT_ASSERT_EQUAL(sal_uInt8(0), pAccessAlpha->GetPixelIndex(19, 0));
CPPUNIT_ASSERT_EQUAL(sal_uInt8(64), pAccessAlpha->GetPixelIndex(19, 19));
}
aStream.Seek(STREAM_SEEK_TO_BEGIN);
vcl::GraphicFormatDetector aDetector(aStream, "");
CPPUNIT_ASSERT_EQUAL(true, aDetector.detect());
CPPUNIT_ASSERT_EQUAL(true, aDetector.checkWEBP());
CPPUNIT_ASSERT_EQUAL(OUString(u"WEBP"), aDetector.msDetectedFormat);
}
void WebpFilterTest::testReadAlphaLossless() { testRead(false, true); }
void WebpFilterTest::testReadAlphaLossy() { testRead(true, true); }
void WebpFilterTest::testReadNoAlphaLossless() { testRead(false, false); }
void WebpFilterTest::testReadNoAlphaLossy() { testRead(true, false); }
void WebpFilterTest::testRead(bool lossy, bool alpha)
{
// Read a file created in GIMP and check it's read correctly.
OUString file = m_directories.getURLFromSrc(u"/vcl/qa/cppunit/graphicfilter/data/webp/")
+ (alpha ? u"alpha" : u"noalpha") + "_" + (lossy ? u"lossy" : u"lossless")
+ ".webp";
SvFileStream aFileStream(file, StreamMode::READ);
Graphic aGraphic;
GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
ErrCode bResult = rFilter.ImportGraphic(aGraphic, u"none", aFileStream);
CPPUNIT_ASSERT_EQUAL(ERRCODE_NONE, bResult);
CPPUNIT_ASSERT_EQUAL(GfxLinkType::NativeWebp, aGraphic.GetGfxLink().GetType());
BitmapEx aResultBitmap = aGraphic.GetBitmapEx();
CPPUNIT_ASSERT_EQUAL(Size(10, 10), aResultBitmap.GetSizePixel());
CPPUNIT_ASSERT_EQUAL(alpha, aResultBitmap.IsAlpha());
{
Bitmap tmpBitmap = aResultBitmap.GetBitmap();
Bitmap::ScopedReadAccess pAccess(tmpBitmap);
// Note that x,y are swapped.
if (lossy)
CPPUNIT_ASSERT_LESS(sal_uInt16(2), pAccess->GetPixel(0, 0).GetColorError(COL_LIGHTRED));
else
CPPUNIT_ASSERT_EQUAL(COL_LIGHTRED, Color(pAccess->GetPixel(0, 0)));
CPPUNIT_ASSERT_EQUAL(COL_LIGHTBLUE, Color(pAccess->GetPixel(9, 9)));
if (alpha)
{
AlphaMask tmpAlpha = aResultBitmap.GetAlpha();
AlphaMask::ScopedReadAccess pAccessAlpha(tmpAlpha);
CPPUNIT_ASSERT_EQUAL(sal_uInt8(0), pAccessAlpha->GetPixelIndex(0, 0));
CPPUNIT_ASSERT_EQUAL(sal_uInt8(255), pAccessAlpha->GetPixelIndex(0, 9));
}
}
}
CPPUNIT_TEST_SUITE_REGISTRATION(WebpFilterTest);
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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