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Diffstat (limited to 'vcl/qa/cppunit/BitmapTest.cxx')
| -rw-r--r-- | vcl/qa/cppunit/BitmapTest.cxx | 739 |
1 files changed, 739 insertions, 0 deletions
diff --git a/vcl/qa/cppunit/BitmapTest.cxx b/vcl/qa/cppunit/BitmapTest.cxx new file mode 100644 index 000000000..79f779f2a --- /dev/null +++ b/vcl/qa/cppunit/BitmapTest.cxx @@ -0,0 +1,739 @@ +/* + * 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 <cppunit/TestAssert.h> +#include <cppunit/TestFixture.h> +#include <cppunit/extensions/HelperMacros.h> +#include <cppunit/plugin/TestPlugIn.h> + +#include <config_features.h> + +#include <rtl/strbuf.hxx> + +#include <vcl/BitmapTools.hxx> +#include <vcl/bitmap.hxx> +#include <vcl/virdev.hxx> +#include <vcl/skia/SkiaHelper.hxx> +#include <vcl/BitmapMonochromeFilter.hxx> + +#include <bitmap/BitmapWriteAccess.hxx> +#include <bitmap/Octree.hxx> +#include <salinst.hxx> +#include <svdata.hxx> + +#include <unordered_map> + +namespace +{ +class BitmapTest : public CppUnit::TestFixture +{ + void testCreation(); + void testEmpty(); + void testMonochrome(); + void testN8Greyscale(); + void testConvert(); + void testCRC(); + void testGreyPalette(); + void testCustom8BitPalette(); + void testErase(); + void testBitmap32(); + void testOctree(); + void testEmptyAccess(); + void testDitherSize(); + void testMirror(); + void testCrop(); + void testCroppedDownsampledBitmap(); + + CPPUNIT_TEST_SUITE(BitmapTest); + CPPUNIT_TEST(testCreation); + CPPUNIT_TEST(testEmpty); + CPPUNIT_TEST(testMonochrome); + CPPUNIT_TEST(testConvert); + CPPUNIT_TEST(testN8Greyscale); + CPPUNIT_TEST(testCRC); + CPPUNIT_TEST(testGreyPalette); + CPPUNIT_TEST(testCustom8BitPalette); + CPPUNIT_TEST(testErase); + CPPUNIT_TEST(testBitmap32); + CPPUNIT_TEST(testOctree); + CPPUNIT_TEST(testEmptyAccess); + CPPUNIT_TEST(testDitherSize); + CPPUNIT_TEST(testMirror); + CPPUNIT_TEST(testCrop); + CPPUNIT_TEST(testCroppedDownsampledBitmap); + CPPUNIT_TEST_SUITE_END(); +}; + +void assertColorsAreSimilar(int maxDifference, const std::string& message, + const BitmapColor& expected, const BitmapColor& actual) +{ + // Check that the two colors match or are reasonably similar. + if (expected.GetColorError(actual) <= maxDifference) + return; + CPPUNIT_ASSERT_EQUAL_MESSAGE(message, expected, actual); +} + +void BitmapTest::testCreation() +{ + { + Bitmap aBmp; + Size aSize = aBmp.GetSizePixel(); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong width", static_cast<tools::Long>(0), aSize.Width()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong height", static_cast<tools::Long>(0), aSize.Height()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong pref size", Size(), aBmp.GetPrefSize()); + CPPUNIT_ASSERT_MESSAGE("Not empty", aBmp.IsEmpty()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong pixel format", vcl::PixelFormat::INVALID, + aBmp.getPixelFormat()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong byte size", static_cast<sal_Int64>(0), + aBmp.GetSizeBytes()); + } + + { + Bitmap aBmp(Size(10, 10), vcl::PixelFormat::N1_BPP); + Size aSize = aBmp.GetSizePixel(); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong width", static_cast<tools::Long>(10), aSize.Width()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong height", static_cast<tools::Long>(10), aSize.Height()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong pref size", Size(), aBmp.GetPrefSize()); + CPPUNIT_ASSERT_MESSAGE("Empty bitmap", !aBmp.IsEmpty()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong pixel format", vcl::PixelFormat::N1_BPP, + aBmp.getPixelFormat()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong byte size", static_cast<sal_Int64>(12), + aBmp.GetSizeBytes()); + } + + { + Bitmap aBmp(Size(10, 10), vcl::PixelFormat::N8_BPP); + Size aSize = aBmp.GetSizePixel(); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong width", static_cast<tools::Long>(10), aSize.Width()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong height", static_cast<tools::Long>(10), aSize.Height()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong pref size", Size(), aBmp.GetPrefSize()); + CPPUNIT_ASSERT_MESSAGE("Empty bitmap", !aBmp.IsEmpty()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong pixel format", vcl::PixelFormat::N8_BPP, + aBmp.getPixelFormat()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong byte size", static_cast<sal_Int64>(100), + aBmp.GetSizeBytes()); + } + + { + Bitmap aBmp(Size(10, 10), vcl::PixelFormat::N24_BPP); + Size aSize = aBmp.GetSizePixel(); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong width", static_cast<tools::Long>(10), aSize.Width()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong height", static_cast<tools::Long>(10), aSize.Height()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong pref size", Size(), aBmp.GetPrefSize()); + CPPUNIT_ASSERT_MESSAGE("Empty bitmap", !aBmp.IsEmpty()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong pixel format", vcl::PixelFormat::N24_BPP, + aBmp.getPixelFormat()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong byte size", static_cast<sal_Int64>(300), + aBmp.GetSizeBytes()); + } + + // Check backend capabilities and return from the test successfully + // if the backend doesn't support 32-bit bitmap + if (ImplGetSVData()->mpDefInst->supportsBitmap32()) + { + Bitmap aBmp(Size(10, 10), vcl::PixelFormat::N32_BPP); + Size aSize = aBmp.GetSizePixel(); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong width", static_cast<tools::Long>(10), aSize.Width()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong height", static_cast<tools::Long>(10), aSize.Height()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong pref size", Size(), aBmp.GetPrefSize()); + CPPUNIT_ASSERT_MESSAGE("Empty bitmap", !aBmp.IsEmpty()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong pixel format", vcl::PixelFormat::N32_BPP, + aBmp.getPixelFormat()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong byte size", sal_Int64(400), aBmp.GetSizeBytes()); + } +} + +void BitmapTest::testEmpty() +{ + Bitmap aBitmap(Size(10, 10), vcl::PixelFormat::N8_BPP); + aBitmap.Erase(COL_LIGHTGRAYBLUE); + + CPPUNIT_ASSERT(!aBitmap.IsEmpty()); + + aBitmap.SetEmpty(); + CPPUNIT_ASSERT(aBitmap.IsEmpty()); +} + +Bitmap createTestBitmap() +{ + Bitmap aBmp(Size(4, 4), vcl::PixelFormat::N24_BPP); + BitmapWriteAccess aBmpAccess(aBmp); + + // row 1 + aBmpAccess.SetPixel(0, 0, BitmapColor(COL_BLACK)); + aBmpAccess.SetPixel(0, 1, BitmapColor(COL_BLUE)); + aBmpAccess.SetPixel(0, 2, BitmapColor(COL_GREEN)); + aBmpAccess.SetPixel(0, 3, BitmapColor(COL_CYAN)); + + // row 2 + aBmpAccess.SetPixel(1, 0, BitmapColor(COL_RED)); + aBmpAccess.SetPixel(1, 1, BitmapColor(COL_MAGENTA)); + aBmpAccess.SetPixel(1, 2, BitmapColor(COL_BROWN)); + aBmpAccess.SetPixel(1, 3, BitmapColor(COL_GRAY)); + + // row 3 + aBmpAccess.SetPixel(2, 0, BitmapColor(COL_LIGHTGRAY)); + aBmpAccess.SetPixel(2, 1, BitmapColor(COL_LIGHTBLUE)); + aBmpAccess.SetPixel(2, 2, BitmapColor(COL_LIGHTGREEN)); + aBmpAccess.SetPixel(2, 3, BitmapColor(COL_LIGHTCYAN)); + + // row 4 + aBmpAccess.SetPixel(3, 0, BitmapColor(COL_LIGHTRED)); + aBmpAccess.SetPixel(3, 1, BitmapColor(COL_LIGHTMAGENTA)); + aBmpAccess.SetPixel(3, 2, BitmapColor(COL_YELLOW)); + aBmpAccess.SetPixel(3, 3, BitmapColor(COL_WHITE)); + + return aBmp; +} + +void BitmapTest::testMonochrome() +{ + Bitmap aBmp = createTestBitmap(); + + BitmapEx aBmpEx(aBmp); + BitmapFilter::Filter(aBmpEx, BitmapMonochromeFilter(63)); + aBmp = aBmpEx.GetBitmap(); + BitmapReadAccess aBmpReadAccess(aBmp); + + CPPUNIT_ASSERT_EQUAL_MESSAGE("Black pixel wrong monochrome value", BitmapColor(COL_BLACK), + aBmpReadAccess.GetColor(0, 0)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Blue pixel wrong monochrome value", BitmapColor(COL_BLACK), + aBmpReadAccess.GetColor(0, 1)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Green pixel wrong monochrome value", BitmapColor(COL_WHITE), + aBmpReadAccess.GetColor(0, 2)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Cyan pixel wrong monochrome value", BitmapColor(COL_WHITE), + aBmpReadAccess.GetColor(0, 3)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Red pixel wrong monochrome value", BitmapColor(COL_BLACK), + aBmpReadAccess.GetColor(1, 0)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Magenta pixel wrong monochrome value", BitmapColor(COL_BLACK), + aBmpReadAccess.GetColor(1, 1)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Brown pixel wrong monochrome value", BitmapColor(COL_WHITE), + aBmpReadAccess.GetColor(1, 2)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Gray pixel wrong monochrome value", BitmapColor(COL_WHITE), + aBmpReadAccess.GetColor(1, 3)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Light gray pixel wrong monochrome value", BitmapColor(COL_WHITE), + aBmpReadAccess.GetColor(2, 0)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Light blue pixel wrong monochrome value", BitmapColor(COL_BLACK), + aBmpReadAccess.GetColor(2, 1)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Light green pixel wrong monochrome value", BitmapColor(COL_WHITE), + aBmpReadAccess.GetColor(2, 2)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Light cyan pixel wrong monochrome value", BitmapColor(COL_WHITE), + aBmpReadAccess.GetColor(2, 3)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Light red pixel wrong monochrome value", BitmapColor(COL_WHITE), + aBmpReadAccess.GetColor(3, 0)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Light magenta pixel wrong monochrome value", + BitmapColor(COL_WHITE), aBmpReadAccess.GetColor(3, 1)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Yellow pixel wrong monochrome value", BitmapColor(COL_WHITE), + aBmpReadAccess.GetColor(3, 2)); + CPPUNIT_ASSERT_EQUAL_MESSAGE("White pixel wrong monochrome value", BitmapColor(COL_WHITE), + aBmpReadAccess.GetColor(3, 3)); +} + +void BitmapTest::testN8Greyscale() +{ + Bitmap aBmp = createTestBitmap(); + BitmapPalette aGreyscalePalette = Bitmap::GetGreyPalette(256); + + aBmp.Convert(BmpConversion::N8BitGreys); + BitmapReadAccess aBmpReadAccess(aBmp); + + assertColorsAreSimilar(1, "Black pixel wrong 8-bit greyscale value", aGreyscalePalette[0], + aBmpReadAccess.GetColor(0, 0)); + assertColorsAreSimilar(1, "Blue pixel wrong 8-bit greyscale value", aGreyscalePalette[14], + aBmpReadAccess.GetColor(0, 1)); + assertColorsAreSimilar(1, "Green pixel wrong 8-bit greyscale value", aGreyscalePalette[75], + aBmpReadAccess.GetColor(0, 2)); + assertColorsAreSimilar(1, "Cyan pixel wrong 8-bit greyscale value", aGreyscalePalette[89], + aBmpReadAccess.GetColor(0, 3)); + assertColorsAreSimilar(1, "Red pixel wrong 8-bit greyscale value", aGreyscalePalette[38], + aBmpReadAccess.GetColor(1, 0)); + assertColorsAreSimilar(1, "Magenta pixel wrong 8-bit greyscale value", aGreyscalePalette[52], + aBmpReadAccess.GetColor(1, 1)); + assertColorsAreSimilar(1, "Brown pixel wrong 8-bit greyscale value", aGreyscalePalette[114], + aBmpReadAccess.GetColor(1, 2)); + assertColorsAreSimilar(1, "Gray pixel wrong 8-bit greyscale value", aGreyscalePalette[128], + aBmpReadAccess.GetColor(1, 3)); + assertColorsAreSimilar(1, "Light gray pixel wrong 8-bit greyscale value", + aGreyscalePalette[192], aBmpReadAccess.GetColor(2, 0)); + assertColorsAreSimilar(1, "Light blue pixel wrong 8-bit greyscale value", aGreyscalePalette[27], + aBmpReadAccess.GetColor(2, 1)); + assertColorsAreSimilar(1, "Light green pixel wrong 8-bit greyscale value", + aGreyscalePalette[150], aBmpReadAccess.GetColor(2, 2)); + assertColorsAreSimilar(1, "Light cyan pixel wrong 8-bit greyscale value", + aGreyscalePalette[178], aBmpReadAccess.GetColor(2, 3)); + assertColorsAreSimilar(1, "Light red pixel wrong 8-bit greyscale value", aGreyscalePalette[76], + aBmpReadAccess.GetColor(3, 0)); + assertColorsAreSimilar(1, "Light magenta pixel wrong 8-bit greyscale value", + aGreyscalePalette[104], aBmpReadAccess.GetColor(3, 1)); + assertColorsAreSimilar(1, "Yellow pixel wrong 8-bit greyscale value", aGreyscalePalette[227], + aBmpReadAccess.GetColor(3, 2)); + assertColorsAreSimilar(1, "White pixel wrong 8-bit greyscale value", aGreyscalePalette[255], + aBmpReadAccess.GetColor(3, 3)); +} + +void BitmapTest::testConvert() +{ + Bitmap aBitmap(Size(10, 10), vcl::PixelFormat::N8_BPP); + + aBitmap.Erase(COL_LIGHTGRAYBLUE); + + CPPUNIT_ASSERT_EQUAL(vcl::PixelFormat::N8_BPP, aBitmap.getPixelFormat()); + { + Bitmap::ScopedReadAccess pReadAccess(aBitmap); + CPPUNIT_ASSERT_EQUAL(static_cast<sal_uInt16>(8), pReadAccess->GetBitCount()); +#if defined MACOSX || defined IOS + if (SkiaHelper::isVCLSkiaEnabled()) + CPPUNIT_ASSERT_EQUAL(static_cast<sal_uInt32>(12), pReadAccess->GetScanlineSize()); + else + //it would be nice to find and change the stride for quartz to be the same as everyone else + CPPUNIT_ASSERT_EQUAL(static_cast<sal_uInt32>(10), pReadAccess->GetScanlineSize()); +#else + CPPUNIT_ASSERT_EQUAL(static_cast<sal_uInt32>(12), pReadAccess->GetScanlineSize()); +#endif + CPPUNIT_ASSERT(pReadAccess->HasPalette()); + const BitmapColor& rColor = pReadAccess->GetPaletteColor(pReadAccess->GetPixelIndex(1, 1)); + CPPUNIT_ASSERT_EQUAL(sal_Int32(204), sal_Int32(rColor.GetRed())); + CPPUNIT_ASSERT_EQUAL(sal_Int32(204), sal_Int32(rColor.GetGreen())); + CPPUNIT_ASSERT_EQUAL(sal_Int32(255), sal_Int32(rColor.GetBlue())); + } + + aBitmap.Convert(BmpConversion::N24Bit); + + CPPUNIT_ASSERT_EQUAL(vcl::PixelFormat::N24_BPP, aBitmap.getPixelFormat()); + { + Bitmap::ScopedReadAccess pReadAccess(aBitmap); + // 24 bit Bitmap on SVP backend can now use 24bit RGB everywhere. + CPPUNIT_ASSERT_EQUAL(static_cast<sal_uInt16>(24), pReadAccess->GetBitCount()); + + if (SkiaHelper::isVCLSkiaEnabled()) // aligned to 4 bytes + CPPUNIT_ASSERT_EQUAL(sal_uInt32(32), pReadAccess->GetScanlineSize()); + else +#if defined LINUX || defined FREEBSD + { + CPPUNIT_ASSERT_EQUAL(sal_uInt32(32), pReadAccess->GetScanlineSize()); + } +#elif defined(_WIN32) + { + // GDI Scanlines padded to DWORD multiples, it seems + CPPUNIT_ASSERT_EQUAL(sal_uInt32(32), pReadAccess->GetScanlineSize()); + } +#else + { + CPPUNIT_ASSERT_EQUAL(sal_uInt32(30), pReadAccess->GetScanlineSize()); + } +#endif + + CPPUNIT_ASSERT(!pReadAccess->HasPalette()); + Color aColor = pReadAccess->GetPixel(0, 0); + CPPUNIT_ASSERT_EQUAL(sal_Int32(204), sal_Int32(aColor.GetRed())); + CPPUNIT_ASSERT_EQUAL(sal_Int32(204), sal_Int32(aColor.GetGreen())); + CPPUNIT_ASSERT_EQUAL(sal_Int32(255), sal_Int32(aColor.GetBlue())); + } +} + +typedef std::unordered_map<sal_uInt64, const char*> CRCHash; + +void checkAndInsert(CRCHash& rHash, sal_uInt64 nCRC, const char* pLocation) +{ + auto it = rHash.find(nCRC); + if (it != rHash.end()) + { + OStringBuffer aBuf("CRC collision between "); + aBuf.append(pLocation); + aBuf.append(" and "); + aBuf.append(it->second); + aBuf.append(" hash is 0x"); + aBuf.append(static_cast<sal_Int64>(nCRC), 16); + CPPUNIT_FAIL(aBuf.toString().getStr()); + } + rHash[nCRC] = pLocation; +} + +void checkAndInsert(CRCHash& rHash, Bitmap const& rBmp, const char* pLocation) +{ + checkAndInsert(rHash, rBmp.GetChecksum(), pLocation); +} + +Bitmap getAsBitmap(VclPtr<OutputDevice> const& pOut) +{ + return pOut->GetBitmap(Point(), pOut->GetOutputSizePixel()); +} + +void BitmapTest::testCRC() +{ + CRCHash aCRCs; + + Bitmap aBitmap(Size(1023, 759), vcl::PixelFormat::N24_BPP); + aBitmap.Erase(COL_BLACK); + checkAndInsert(aCRCs, aBitmap, "black bitmap"); + aBitmap.Invert(); + checkAndInsert(aCRCs, aBitmap, "white bitmap"); + + ScopedVclPtrInstance<VirtualDevice> aVDev; + aVDev->SetBackground(Wallpaper(COL_WHITE)); + aVDev->SetOutputSizePixel(Size(1023, 759)); + +#if 0 // disabled for now - oddly breaks on OS/X - but why ? + Bitmap aWhiteCheck = getAsBitmap(aVDev); + CPPUNIT_ASSERT(aCRCs.find(aWhiteCheck.GetChecksum()) != aCRCs.end()); +#endif + + // a 1x1 black & white checkerboard + aVDev->DrawCheckered(Point(), aVDev->GetOutputSizePixel(), 1, Color(0, 0, 1)); + Bitmap aChecker = getAsBitmap(aVDev); + checkAndInsert(aCRCs, aChecker, "checkerboard"); + aChecker.Invert(); + checkAndInsert(aCRCs, aChecker, "inverted checkerboard"); +} + +void BitmapTest::testGreyPalette() +{ + { + BitmapPalette aPalette = Bitmap::GetGreyPalette(2); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong number of palette entries", static_cast<sal_uInt16>(2), + aPalette.GetEntryCount()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 1 wrong", BitmapColor(0, 0, 0), aPalette[0]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 2 wrong", BitmapColor(255, 255, 255), aPalette[1]); + } + + { + BitmapPalette aPalette = Bitmap::GetGreyPalette(4); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong number of palette entries", static_cast<sal_uInt16>(4), + aPalette.GetEntryCount()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 1 wrong", BitmapColor(0, 0, 0), aPalette[0]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 2 wrong", BitmapColor(85, 85, 85), aPalette[1]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 3 wrong", BitmapColor(170, 170, 170), aPalette[2]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 4 wrong", BitmapColor(255, 255, 255), aPalette[3]); + } + + { + BitmapPalette aPalette = Bitmap::GetGreyPalette(16); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong number of palette entries", static_cast<sal_uInt16>(16), + aPalette.GetEntryCount()); + // this is a *real* specific number of greys, incremented in units of 17 so may + // as well test them all... + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 1 wrong", BitmapColor(0, 0, 0), aPalette[0]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 2 wrong", BitmapColor(17, 17, 17), aPalette[1]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 3 wrong", BitmapColor(34, 34, 34), aPalette[2]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 4 wrong", BitmapColor(51, 51, 51), aPalette[3]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 5 wrong", BitmapColor(68, 68, 68), aPalette[4]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 6 wrong", BitmapColor(85, 85, 85), aPalette[5]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 7 wrong", BitmapColor(102, 102, 102), aPalette[6]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 8 wrong", BitmapColor(119, 119, 119), aPalette[7]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 9 wrong", BitmapColor(136, 136, 136), aPalette[8]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 10 wrong", BitmapColor(153, 153, 153), aPalette[9]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 11 wrong", BitmapColor(170, 170, 170), aPalette[10]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 12 wrong", BitmapColor(187, 187, 187), aPalette[11]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 13 wrong", BitmapColor(204, 204, 204), aPalette[12]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 14 wrong", BitmapColor(221, 221, 221), aPalette[13]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 15 wrong", BitmapColor(238, 238, 238), aPalette[14]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 16 wrong", BitmapColor(255, 255, 255), aPalette[15]); + } + + { + BitmapPalette aPalette = Bitmap::GetGreyPalette(256); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong number of palette entries", + static_cast<sal_uInt16>(256), aPalette.GetEntryCount()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 1 wrong", BitmapColor(0, 0, 0), aPalette[0]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 127 wrong", BitmapColor(127, 127, 127), aPalette[127]); + CPPUNIT_ASSERT_EQUAL_MESSAGE("Entry 255 wrong", BitmapColor(255, 255, 255), aPalette[255]); + } +} + +void BitmapTest::testCustom8BitPalette() +{ + BitmapPalette aCustomPalette; + aCustomPalette.SetEntryCount(256); + for (sal_uInt16 i = 0; i < 256; i++) + { + aCustomPalette[i] = BitmapColor(sal_uInt8(i), sal_uInt8(0xCC), sal_uInt8(0x22)); + } + Bitmap aBitmap(Size(3, 2), vcl::PixelFormat::N8_BPP, &aCustomPalette); + + { + BitmapScopedWriteAccess pAccess(aBitmap); + pAccess->SetPixelIndex(0, 0, 0); + pAccess->SetPixelIndex(0, 1, 1); + pAccess->SetPixelIndex(0, 2, 2); + + pAccess->SetPixelIndex(1, 0, 253); + pAccess->SetPixelIndex(1, 1, 254); + pAccess->SetPixelIndex(1, 2, 255); + } + + { + Bitmap::ScopedReadAccess pAccess(aBitmap); + CPPUNIT_ASSERT_EQUAL(0, int(pAccess->GetPixelIndex(0, 0))); + CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0xCC, 0x22), pAccess->GetColor(0, 0)); + + CPPUNIT_ASSERT_EQUAL(1, int(pAccess->GetPixelIndex(0, 1))); + CPPUNIT_ASSERT_EQUAL(BitmapColor(0x01, 0xCC, 0x22), pAccess->GetColor(0, 1)); + + CPPUNIT_ASSERT_EQUAL(2, int(pAccess->GetPixelIndex(0, 2))); + CPPUNIT_ASSERT_EQUAL(BitmapColor(0x02, 0xCC, 0x22), pAccess->GetColor(0, 2)); + + CPPUNIT_ASSERT_EQUAL(253, int(pAccess->GetPixelIndex(1, 0))); + CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFD, 0xCC, 0x22), pAccess->GetColor(1, 0)); + + CPPUNIT_ASSERT_EQUAL(254, int(pAccess->GetPixelIndex(1, 1))); + CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFE, 0xCC, 0x22), pAccess->GetColor(1, 1)); + + CPPUNIT_ASSERT_EQUAL(255, int(pAccess->GetPixelIndex(1, 2))); + CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xCC, 0x22), pAccess->GetColor(1, 2)); + } +} + +void BitmapTest::testErase() +{ + Bitmap aBitmap(Size(3, 3), vcl::PixelFormat::N24_BPP); + { + BitmapScopedWriteAccess pWriteAccess(aBitmap); + pWriteAccess->Erase(Color(0x11, 0x22, 0x33)); + } + { + Bitmap::ScopedReadAccess pReadAccess(aBitmap); + BitmapColor aColor(pReadAccess->GetPixel(0, 0)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(ColorTransparency, 0x11, 0x22, 0x33, 0x00), aColor); + } +} + +void BitmapTest::testBitmap32() +{ + // Check backend capabilities and return from the test successfully + // if the backend doesn't support 32-bit bitmap + if (!ImplGetSVData()->mpDefInst->supportsBitmap32()) + return; + + Bitmap aBitmap(Size(3, 3), vcl::PixelFormat::N32_BPP); + { + BitmapScopedWriteAccess pWriteAccess(aBitmap); + pWriteAccess->Erase(Color(ColorTransparency, 0xFF, 0x11, 0x22, 0x33)); + pWriteAccess->SetPixel(1, 1, BitmapColor(ColorTransparency, 0x44, 0xFF, 0xBB, 0x00)); + pWriteAccess->SetPixel(2, 2, BitmapColor(ColorTransparency, 0x99, 0x77, 0x66, 0x55)); + } + { + Bitmap::ScopedReadAccess pReadAccess(aBitmap); + BitmapColor aColor = pReadAccess->GetPixel(0, 0); + CPPUNIT_ASSERT_EQUAL(BitmapColor(ColorTransparency, 0x00, 0x00, 0x00, 0xFF), aColor); + + aColor = pReadAccess->GetPixel(1, 1); + CPPUNIT_ASSERT_EQUAL(BitmapColor(ColorTransparency, 0x44, 0xFF, 0xBB, 0x00), aColor); + + aColor = pReadAccess->GetPixel(2, 2); + CPPUNIT_ASSERT_EQUAL(BitmapColor(ColorTransparency, 0x99, 0x77, 0x66, 0x55), aColor); + } +} + +void BitmapTest::testOctree() +{ + Size aSize(1000, 100); + Bitmap aBitmap(aSize, vcl::PixelFormat::N24_BPP); + { + BitmapScopedWriteAccess pWriteAccess(aBitmap); + for (tools::Long y = 0; y < aSize.Height(); ++y) + { + for (tools::Long x = 0; x < aSize.Width(); ++x) + { + double fPercent = double(x) / double(aSize.Width()); + pWriteAccess->SetPixel(y, x, + BitmapColor(255.0 * fPercent, 64.0 + (128.0 * fPercent), + 255.0 - 255.0 * fPercent)); + } + } + } + + { + // Reduce to 1 color + Bitmap::ScopedReadAccess pAccess(aBitmap); + Octree aOctree(*pAccess, 1); + auto aBitmapPalette = aOctree.GetPalette(); + CPPUNIT_ASSERT_EQUAL(sal_uInt16(1), aBitmapPalette.GetEntryCount()); + CPPUNIT_ASSERT_EQUAL(BitmapColor(0x7e, 0x7f, 0x7f), aBitmapPalette[0]); + } + + { + // Reduce to 4 color + Bitmap::ScopedReadAccess pAccess(aBitmap); + Octree aOctree(*pAccess, 4); + auto aBitmapPalette = aOctree.GetPalette(); + CPPUNIT_ASSERT_EQUAL(sal_uInt16(4), aBitmapPalette.GetEntryCount()); + CPPUNIT_ASSERT_EQUAL(BitmapColor(0x7f, 0x7f, 0x7f), aBitmapPalette[0]); + CPPUNIT_ASSERT_EQUAL(BitmapColor(0x3e, 0x5f, 0xbf), aBitmapPalette[1]); + CPPUNIT_ASSERT_EQUAL(BitmapColor(0x7f, 0x80, 0x7f), aBitmapPalette[2]); + CPPUNIT_ASSERT_EQUAL(BitmapColor(0xbe, 0x9f, 0x3f), aBitmapPalette[3]); + } + + { + // Reduce to 256 color + Bitmap::ScopedReadAccess pAccess(aBitmap); + Octree aOctree(*pAccess, 256); + auto aBitmapPalette = aOctree.GetPalette(); + CPPUNIT_ASSERT_EQUAL(sal_uInt16(74), aBitmapPalette.GetEntryCount()); + } +} + +void BitmapTest::testEmptyAccess() +{ + Bitmap empty; + BitmapInfoAccess access(empty); + CPPUNIT_ASSERT_EQUAL(tools::Long(0), access.Width()); + CPPUNIT_ASSERT_EQUAL(tools::Long(0), access.Height()); +} + +void BitmapTest::testDitherSize() +{ + // no need to do anything for a 1x1 pixel bitmap + { + Bitmap aBitmap(Size(1, 1), vcl::PixelFormat::N24_BPP); + CPPUNIT_ASSERT(aBitmap.Dither()); + } + + // cannot dither a bitmap with a width of 2 or 3 pixels + { + Bitmap aBitmap(Size(2, 4), vcl::PixelFormat::N24_BPP); + CPPUNIT_ASSERT(!aBitmap.Dither()); + } + + { + Bitmap aBitmap(Size(3, 4), vcl::PixelFormat::N24_BPP); + CPPUNIT_ASSERT(!aBitmap.Dither()); + } + + // cannot dither a bitmap with a height of 2 pixels + { + Bitmap aBitmap(Size(4, 2), vcl::PixelFormat::N24_BPP); + CPPUNIT_ASSERT(!aBitmap.Dither()); + } + + // only dither bitmaps with a width > 3 pixels and height > 2 pixels + { + Bitmap aBitmap(Size(4, 3), vcl::PixelFormat::N24_BPP); + CPPUNIT_ASSERT(aBitmap.Dither()); + } +} + +void BitmapTest::testMirror() +{ + vcl::PixelFormat bppArray[] + = { vcl::PixelFormat::N8_BPP, vcl::PixelFormat::N24_BPP, vcl::PixelFormat::N32_BPP }; + + for (vcl::PixelFormat bpp : bppArray) + { + Bitmap bitmap(Size(11, 11), bpp); + { + bitmap.Erase(COL_MAGENTA); + BitmapWriteAccess write(bitmap); + if (write.HasPalette()) + { + // Note that SetPixel() and GetColor() take arguments as Y,X. + write.SetPixel(0, 0, BitmapColor(write.GetBestPaletteIndex(COL_BLACK))); + write.SetPixel(10, 0, BitmapColor(write.GetBestPaletteIndex(COL_WHITE))); + write.SetPixel(0, 10, BitmapColor(write.GetBestPaletteIndex(COL_RED))); + write.SetPixel(10, 10, BitmapColor(write.GetBestPaletteIndex(COL_BLUE))); + write.SetPixel(5, 0, BitmapColor(write.GetBestPaletteIndex(COL_GREEN))); + write.SetPixel(0, 5, BitmapColor(write.GetBestPaletteIndex(COL_YELLOW))); + } + else + { + write.SetPixel(0, 0, COL_BLACK); + write.SetPixel(10, 0, COL_WHITE); + write.SetPixel(0, 10, COL_RED); + write.SetPixel(10, 10, COL_BLUE); + write.SetPixel(5, 0, COL_GREEN); + write.SetPixel(0, 5, COL_YELLOW); + } + } + bitmap.Mirror(BmpMirrorFlags::Horizontal); + { + BitmapReadAccess read(bitmap); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_BLACK), read.GetColor(0, 10)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_WHITE), read.GetColor(10, 10)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_RED), read.GetColor(0, 0)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_BLUE), read.GetColor(10, 0)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_GREEN), read.GetColor(5, 10)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_YELLOW), read.GetColor(0, 5)); + } + bitmap.Mirror(BmpMirrorFlags::Vertical); + { + BitmapReadAccess read(bitmap); + // Now is effectively mirrored in both directions. + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_BLACK), read.GetColor(10, 10)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_WHITE), read.GetColor(0, 10)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_RED), read.GetColor(10, 0)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_BLUE), read.GetColor(0, 0)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_GREEN), read.GetColor(5, 10)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_YELLOW), read.GetColor(10, 5)); + } + bitmap.Mirror(BmpMirrorFlags::Vertical | BmpMirrorFlags::Horizontal); + { + BitmapReadAccess read(bitmap); + // Now is back the original. + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_BLACK), read.GetColor(0, 0)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_WHITE), read.GetColor(10, 0)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_RED), read.GetColor(0, 10)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_BLUE), read.GetColor(10, 10)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_GREEN), read.GetColor(5, 0)); + CPPUNIT_ASSERT_EQUAL(BitmapColor(COL_YELLOW), read.GetColor(0, 5)); + } + } +} + +void BitmapTest::testCroppedDownsampledBitmap() +{ + Bitmap aBitmap(Size(16, 16), vcl::PixelFormat::N24_BPP); + Bitmap aDownsampledBmp(vcl::bitmap::GetDownsampledBitmap(Size(10, 10), Point(20, 20), + Size(5, 5), aBitmap, 72, 72)); + CPPUNIT_ASSERT(aDownsampledBmp.IsEmpty()); +} + +void BitmapTest::testCrop() +{ + Bitmap aBitmap(Bitmap(Size(16, 16), vcl::PixelFormat::N24_BPP)); + + { + Bitmap aCroppedBmp(aBitmap); + CPPUNIT_ASSERT_MESSAGE("Crop was fully outside of bitmap bounds", + !aCroppedBmp.Crop(tools::Rectangle(Point(20, 20), Size(5, 5)))); + CPPUNIT_ASSERT_EQUAL(Size(16, 16), aCroppedBmp.GetSizePixel()); + } + + { + Bitmap aCroppedBmp(aBitmap); + CPPUNIT_ASSERT_MESSAGE("Crop same size as bitmap", + !aCroppedBmp.Crop(tools::Rectangle(Point(0, 0), Size(16, 16)))); + CPPUNIT_ASSERT_EQUAL(Size(16, 16), aCroppedBmp.GetSizePixel()); + } + + { + Bitmap aCroppedBmp(aBitmap); + CPPUNIT_ASSERT_MESSAGE("Crop larger than bitmap", + !aCroppedBmp.Crop(tools::Rectangle(Point(0, 0), Size(100, 100)))); + CPPUNIT_ASSERT_EQUAL(Size(16, 16), aCroppedBmp.GetSizePixel()); + } + + { + Bitmap aCroppedBmp(aBitmap); + CPPUNIT_ASSERT_MESSAGE("Crop partially overcrops bitmap", + aCroppedBmp.Crop(tools::Rectangle(Point(10, 10), Size(100, 100)))); + CPPUNIT_ASSERT_EQUAL(Size(6, 6), aCroppedBmp.GetSizePixel()); + } + + { + Bitmap aCroppedBmp(aBitmap); + CPPUNIT_ASSERT_MESSAGE("Crop inside bitmap", + aCroppedBmp.Crop(tools::Rectangle(Point(5, 5), Size(10, 10)))); + CPPUNIT_ASSERT_EQUAL(Size(10, 10), aCroppedBmp.GetSizePixel()); + } +} +} // namespace + +CPPUNIT_TEST_SUITE_REGISTRATION(BitmapTest); + +CPPUNIT_PLUGIN_IMPLEMENT(); + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |