vcl/qa/cppunit/png/PngFilterTest.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <test/bootstrapfixture.hxx>
  21 #include <tools/stream.hxx>
  22 #include <vcl/filter/PngImageReader.hxx>
  23 #include <vcl/bitmapaccess.hxx>
  24 #include <vcl/alpha.hxx>
  25
  26 using namespace css;
  27
  28 class PngFilterTest : public test::BootstrapFixture
  29 {
  30     OUString maDataUrl;
  31
  32     OUString getFullUrl(const OUString& sFileName)
  33     {
  34         return m_directories.getURLFromSrc(maDataUrl) + sFileName;
  35     }
  36
  37 public:
  38     PngFilterTest()
  39         : BootstrapFixture(true, false)
  40         , maDataUrl("/vcl/qa/cppunit/png/data/")
  41     {
  42     }
  43
  44     void testPng();
  45
  46     CPPUNIT_TEST_SUITE(PngFilterTest);
  47     CPPUNIT_TEST(testPng);
  48     CPPUNIT_TEST_SUITE_END();
  49 };
  50
  51 void PngFilterTest::testPng()
  52 {
  53     for (const OUString& aFileName : { OUString("rect-1bit-pal.png") })
  54     {
  55         SvFileStream aFileStream(getFullUrl(aFileName), StreamMode::READ);
  56
  57         vcl::PngImageReader aPngReader(aFileStream);
  58         BitmapEx aBitmapEx;
  59         aPngReader.read(aBitmapEx);
  60
  61         Bitmap aBitmap = aBitmapEx.GetBitmap();
  62         {
  63             Bitmap::ScopedReadAccess pAccess(aBitmap);
  64             CPPUNIT_ASSERT_EQUAL(tools::Long(4), pAccess->Width());
  65             CPPUNIT_ASSERT_EQUAL(tools::Long(4), pAccess->Height());
  66
  67             if (pAccess->GetBitCount() == 24 || pAccess->GetBitCount() == 32)
  68             {
  69                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x00), pAccess->GetPixel(0, 0));
  70                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x00), pAccess->GetPixel(3, 3));
  71                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x00), pAccess->GetPixel(3, 0));
  72                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x00), pAccess->GetPixel(0, 3));
  73
  74                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0x00, 0x00), pAccess->GetPixel(1, 1));
  75                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0x00, 0x00), pAccess->GetPixel(1, 2));
  76                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0x00, 0x00), pAccess->GetPixel(2, 1));
  77                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0x00, 0x00), pAccess->GetPixel(2, 2));
  78             }
  79             else
  80             {
  81                 CPPUNIT_ASSERT_MESSAGE("Bitmap is not 24 or 32 bit.", false);
  82             }
  83         }
  84     }
  85     for (const OUString& aFileName :
  86          { OUString("color-rect-8bit-RGB.png"), OUString("color-rect-4bit-pal.png") })
  87     {
  88         SvFileStream aFileStream(getFullUrl(aFileName), StreamMode::READ);
  89
  90         vcl::PngImageReader aPngReader(aFileStream);
  91         BitmapEx aBitmapEx;
  92         aPngReader.read(aBitmapEx);
  93
  94         Bitmap aBitmap = aBitmapEx.GetBitmap();
  95         {
  96             Bitmap::ScopedReadAccess pAccess(aBitmap);
  97             CPPUNIT_ASSERT_EQUAL(tools::Long(4), pAccess->Width());
  98             CPPUNIT_ASSERT_EQUAL(tools::Long(4), pAccess->Height());
  99             if (pAccess->GetBitCount() == 24 || pAccess->GetBitCount() == 32)
 100             {
 101                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x00), pAccess->GetPixel(0, 0));
 102                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x00), pAccess->GetPixel(3, 3));
 103                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x00), pAccess->GetPixel(3, 0));
 104                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x00), pAccess->GetPixel(0, 3));
 105
 106                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0x00, 0x00, 0x00), pAccess->GetPixel(1, 1));
 107                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0xFF, 0x00, 0x00), pAccess->GetPixel(1, 2));
 108                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0xFF, 0x00), pAccess->GetPixel(2, 1));
 109                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0x00, 0x00), pAccess->GetPixel(2, 2));
 110             }
 111             else
 112             {
 113                 CPPUNIT_ASSERT_MESSAGE("Bitmap is not 24 or 32 bit.", false);
 114             }
 115         }
 116     }
 117     for (const OUString& aFileName : { OUString("alpha-rect-8bit-RGBA.png") })
 118     {
 119         SvFileStream aFileStream(getFullUrl(aFileName), StreamMode::READ);
 120
 121         vcl::PngImageReader aPngReader(aFileStream);
 122         BitmapEx aBitmapEx;
 123         aPngReader.read(aBitmapEx);
 124
 125         Bitmap aBitmap = aBitmapEx.GetBitmap();
 126         {
 127             Bitmap::ScopedReadAccess pAccess(aBitmap);
 128             CPPUNIT_ASSERT_EQUAL(tools::Long(4), pAccess->Width());
 129             CPPUNIT_ASSERT_EQUAL(tools::Long(4), pAccess->Height());
 130
 131             if (pAccess->GetBitCount() == 24)
 132             {
 133                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x00), pAccess->GetPixel(0, 0));
 134                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x00), pAccess->GetPixel(3, 3));
 135                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x00), pAccess->GetPixel(3, 0));
 136                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x00), pAccess->GetPixel(0, 3));
 137
 138                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0x00, 0x00, 0x00), pAccess->GetPixel(1, 1));
 139                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0xFF, 0x00, 0x00), pAccess->GetPixel(1, 2));
 140                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0xFF, 0x00), pAccess->GetPixel(2, 1));
 141                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0x00, 0x00), pAccess->GetPixel(2, 2));
 142
 143                 AlphaMask aAlpha = aBitmapEx.GetAlpha();
 144                 {
 145                     AlphaMask::ScopedReadAccess pAlphaAccess(aAlpha);
 146                     CPPUNIT_ASSERT_EQUAL(sal_uInt16(8), pAlphaAccess->GetBitCount());
 147                     CPPUNIT_ASSERT_EQUAL(tools::Long(4), pAlphaAccess->Width());
 148                     CPPUNIT_ASSERT_EQUAL(tools::Long(4), pAlphaAccess->Height());
 149
 150                     CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0x80, 0x00),
 151                                          pAlphaAccess->GetPixel(0, 0));
 152                     CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0x80, 0x00),
 153                                          pAlphaAccess->GetPixel(3, 3));
 154                     CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0x80, 0x00),
 155                                          pAlphaAccess->GetPixel(3, 0));
 156                     CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0x80, 0x00),
 157                                          pAlphaAccess->GetPixel(0, 3));
 158
 159                     CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0x40, 0x00),
 160                                          pAlphaAccess->GetPixel(1, 1));
 161                     CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0xC0, 0x00),
 162                                          pAlphaAccess->GetPixel(1, 2));
 163                     CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0xC0, 0x00),
 164                                          pAlphaAccess->GetPixel(2, 1));
 165                     CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0x40, 0x00),
 166                                          pAlphaAccess->GetPixel(2, 2));
 167                 }
 168             }
 169             else if (pAccess->GetBitCount() == 32)
 170             {
 171                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x80), pAccess->GetPixel(0, 0));
 172                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x80), pAccess->GetPixel(3, 3));
 173                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x80), pAccess->GetPixel(3, 0));
 174                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0xFF, 0x80), pAccess->GetPixel(0, 3));
 175
 176                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0x00, 0x00, 0x40), pAccess->GetPixel(1, 1));
 177                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0xFF, 0x00, 0xC0), pAccess->GetPixel(1, 2));
 178                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0x00, 0x00, 0xFF, 0xC0), pAccess->GetPixel(2, 1));
 179                 CPPUNIT_ASSERT_EQUAL(BitmapColor(0xFF, 0xFF, 0x00, 0x40), pAccess->GetPixel(2, 2));
 180             }
 181             else
 182             {
 183                 CPPUNIT_ASSERT_MESSAGE("Bitmap is not 24 or 32 bit.", false);
 184             }
 185         }
 186     }
 187 }
 188
 189 CPPUNIT_TEST_SUITE_REGISTRATION(PngFilterTest);
 190
 191 CPPUNIT_PLUGIN_IMPLEMENT();
 192
 193 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */