/home/maarten/src/libreoffice/core/include/rtl/ref.hxx

Bug Summary

File:	home/maarten/src/libreoffice/core/include/rtl/ref.hxx
Warning:	line 192, column 9 Use of memory after it is freed

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name VisualBackendTest.cxx -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -mframe-pointer=all -fmath-errno -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/lib64/clang/11.0.0 -D BOOST_ERROR_CODE_HEADER_ONLY -D BOOST_SYSTEM_NO_DEPRECATED -D CPPU_ENV=gcc3 -D LINUX -D OSL_DEBUG_LEVEL=1 -D SAL_LOG_INFO -D SAL_LOG_WARN -D UNIX -D UNX -D X86_64 -D _PTHREADS -D _REENTRANT -D EXCEPTIONS_ON -D LIBO_INTERNAL_ONLY -I /home/maarten/src/libreoffice/core/external/boost/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/boost -I /home/maarten/src/libreoffice/core/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include/linux -I /home/maarten/src/libreoffice/core/config_host -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/offapi/normal -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/udkapi/normal -I /home/maarten/src/libreoffice/core/vcl/inc -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10 -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/x86_64-redhat-linux -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/backward -internal-isystem /usr/local/include -internal-isystem /usr/lib64/clang/11.0.0/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O0 -Wno-missing-braces -std=c++17 -fdeprecated-macro -fdebug-compilation-dir /home/maarten/src/libreoffice/core -ferror-limit 19 -fvisibility hidden -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -debug-info-kind=constructor -analyzer-output=html -faddrsig -o /home/maarten/tmp/wis/scan-build-libreoffice/output/report/2020-10-07-141433-9725-1 -x c++ /home/maarten/src/libreoffice/core/vcl/backendtest/VisualBackendTest.cxx

/home/maarten/src/libreoffice/core/vcl/backendtest/VisualBackendTest.cxx

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1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
* 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/.
*/

10#include <math.h>
11#include <sal/log.hxx>

13#include <comphelper/processfactory.hxx>
14#include <cppuhelper/bootstrap.hxx>
15#include <com/sun/star/lang/XComponent.hpp>
16#include <com/sun/star/uno/XComponentContext.hpp>
17#include <com/sun/star/lang/XMultiServiceFactory.hpp>

19#include <vcl/event.hxx>
20#include <vcl/gradient.hxx>
21#include <vcl/vclmain.hxx>

23#include <vcl/svapp.hxx>
24#include <vcl/wrkwin.hxx>
25#include <vcl/virdev.hxx>

27#include <basegfx/numeric/ftools.hxx>
28#include <tools/diagnose_ex.h>

30#include <chrono>
31#include <iostream>

33#include <test/outputdevice.hxx>

35using namespace css;

37static void drawBitmapCentered(tools::Rectangle const& rRect, const Bitmap& aBitmap,
                      vcl::RenderContext& rRenderContext)
39{
  long nWidth = rRect.GetWidth();
  long nHeight = rRect.GetHeight();

  Size aBitmapSize(aBitmap.GetSizePixel());

  Point aPoint(rRect.TopLeft());

  aPoint.AdjustX((nWidth  - aBitmapSize.Width())  / 2 );
  aPoint.AdjustY((nHeight - aBitmapSize.Height()) / 2 );

  rRenderContext.DrawBitmap(aPoint, aBitmap);
51}

53static void drawBitmapScaledAndCentered(tools::Rectangle const & rRect, Bitmap aBitmap, vcl::RenderContext& rRenderContext, BmpScaleFlag aFlag = BmpScaleFlag::Fast)
54{
  long nWidth = rRect.GetWidth();
  long nHeight = rRect.GetHeight();

  Size aBitmapSize(aBitmap.GetSizePixel());

  double fWidthHeight = std::min(nWidth, nHeight);
  double fScale = fWidthHeight / aBitmapSize.Width();
  aBitmap.Scale(fScale, fScale, aFlag);

  drawBitmapCentered(rRect, aBitmap, rRenderContext);
65}

67static void drawBackgroundRect(tools::Rectangle const & rRect, Color aColor, vcl::RenderContext& rRenderContext)
68{
  rRenderContext.Push(PushFlags::LINECOLOR | PushFlags::FILLCOLOR);
  rRenderContext.SetFillColor(aColor);
  rRenderContext.SetLineColor(aColor);
  rRenderContext.DrawRect(rRect);
  rRenderContext.Pop();
74}

76static void assertAndSetBackground(vcl::test::TestResult eResult, tools::Rectangle const & rRect, vcl::RenderContext& rRenderContext)
77{
  if (eResult == vcl::test::TestResult::Passed)
      drawBackgroundRect(rRect, COL_GREEN, rRenderContext);
  else if (eResult == vcl::test::TestResult::PassedWithQuirks)
      drawBackgroundRect(rRect, COL_YELLOW, rRenderContext);
  else if (eResult == vcl::test::TestResult::Failed)
      drawBackgroundRect(rRect, COL_RED, rRenderContext);
84}

86namespace {

88class VisualBackendTestWindow : public WorkWindow
89{
90private:
  Timer maUpdateTimer;
  std::vector<std::chrono::high_resolution_clock::time_point> mTimePoints;
  static constexpr unsigned char gnNumberOfTests = 11;
  unsigned char mnTest;
  bool mbAnimate;
  ScopedVclPtr<VirtualDevice> mpVDev;

98public:
  VisualBackendTestWindow()
      : WorkWindow(nullptr, WB_APP | WB_STDWORK)
      , mnTest(10 * gnNumberOfTests)
      , mbAnimate(mnTest % gnNumberOfTests == gnNumberOfTests - 1)
      , mpVDev(VclPtr<VirtualDevice>::Create())
  {
      maUpdateTimer.SetInvokeHandler(LINK(this, VisualBackendTestWindow, updateHdl)::tools::detail::makeLink( ::tools::detail::castTo<VisualBackendTestWindow
 *>(this), &VisualBackendTestWindow::LinkStubupdateHdl
));
      maUpdateTimer.SetPriority(TaskPriority::DEFAULT_IDLE);
      if (mbAnimate)
      {
          maUpdateTimer.SetTimeout(1000.0);
          maUpdateTimer.Start();
      }
  }

  virtual ~VisualBackendTestWindow() override
  {
      disposeOnce();
  }

  DECL_LINK(updateHdl, Timer*, void)static void LinkStubupdateHdl(void *, Timer*); void updateHdl
(Timer*);

  virtual void KeyInput(const KeyEvent& rKEvt) override
  {
      sal_uInt16 nCode = rKEvt.GetKeyCode().GetCode();

      if (nCode == KEY_BACKSPACE)
          mnTest--;
      else if(nCode == KEY_SPACE)
          mnTest++;

      if (nCode != KEY_BACKSPACE && nCode != KEY_SPACE)
          return;

      if (mnTest % gnNumberOfTests == gnNumberOfTests - 1)
      {
          mbAnimate = true;
          maUpdateTimer.Start();
      }
      else
      {
          mbAnimate = false;
          Invalidate();
      }
  }

  static std::vector<tools::Rectangle> setupRegions(int nPartitionsX, int nPartitionsY, int nWidth, int nHeight)
  {
      std::vector<tools::Rectangle> aRegions;

      for (int y = 0; y < nPartitionsY; y++)
      {
          for (int x = 0; x < nPartitionsX; x++)
          {
              long x1 =  x    * (nWidth  / nPartitionsX);
              long y1 =  y    * (nHeight / nPartitionsY);
              long x2 = (x+1) * (nWidth  / nPartitionsX);
              long y2 = (y+1) * (nHeight / nPartitionsY);

              aRegions.emplace_back(x1 + 1, y1 + 1, x2 - 6, y2 - 2);
          }
      }
      return aRegions;
  }

  static void testRectangles(vcl::RenderContext& rRenderContext, int nWidth, int nHeight, bool AA)
  {
      tools::Rectangle aRectangle;
      size_t index = 0;

      std::vector<tools::Rectangle> aRegions = setupRegions(4, 2, nWidth, nHeight);

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestRect aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupRectangle(AA);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkRectangle(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPixel aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupRectangle(AA);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkRectangle(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestLine aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupRectangle(AA);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkRectangle(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolygon aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupRectangle(AA);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkRectangle(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolyLine aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupRectangle(AA);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkRectangle(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolyLineB2D aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupRectangle(AA);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkRectangle(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolyPolygon aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupRectangle(AA);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkRectangle(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolyPolygonB2D aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupRectangle(AA);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkRectangle(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
  }

  static void testFilledRectangles(vcl::RenderContext& rRenderContext, int nWidth, int nHeight)
  {
      tools::Rectangle aRectangle;
      size_t index = 0;

      std::vector<tools::Rectangle> aRegions = setupRegions(4, 2, nWidth, nHeight);

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestRect aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupFilledRectangle(false);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkFilledRectangle(aBitmap, false), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolygon aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupFilledRectangle(false);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkFilledRectangle(aBitmap, false), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolyPolygon aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupFilledRectangle(false);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkFilledRectangle(aBitmap, false), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolyPolygonB2D aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupFilledRectangle(false);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkFilledRectangle(aBitmap, false), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestRect aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupFilledRectangle(true);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkFilledRectangle(aBitmap, true), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolygon aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupFilledRectangle(true);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkFilledRectangle(aBitmap, true), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolyPolygon aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupFilledRectangle(true);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkFilledRectangle(aBitmap, true), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolyPolygonB2D aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupFilledRectangle(true);
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkFilledRectangle(aBitmap, true), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
  }

  static void testDiamondsAndBezier(vcl::RenderContext& rRenderContext, int nWidth, int nHeight)
  {
      tools::Rectangle aRectangle;
      size_t index = 0;

      std::vector<tools::Rectangle> aRegions = setupRegions(3, 2, nWidth, nHeight);

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolygon aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupDiamond();
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkDiamond(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestLine aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupDiamond();
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkDiamond(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolyLine aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupDiamond();
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkDiamond(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolyLineB2D aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupDiamond();
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkDiamond(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolyLineB2D aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupBezier();
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkBezier(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolyLineB2D aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupAABezier();
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkBezier(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
  }

  static void testLines(vcl::RenderContext& rRenderContext, int nWidth, int nHeight)
  {
      tools::Rectangle aRectangle;
      size_t index = 0;

      std::vector<tools::Rectangle> aRegions = setupRegions(3, 2, nWidth, nHeight);

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestLine aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupLines();
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkLines(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolyLine aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupLines();
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkLines(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolygon aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupLines();
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkLines(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestLine aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupAALines();
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkAALines(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolyLine aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupAALines();
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkAALines(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestPolygon aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupAALines();
          assertAndSetBackground(vcl::test::OutputDeviceTestCommon::checkAALines(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
  }

  static void testBitmaps(vcl::RenderContext& rRenderContext, int nWidth, int nHeight)
  {
      tools::Rectangle aRectangle;
      size_t index = 0;

      std::vector<tools::Rectangle> aRegions = setupRegions(3, 2, nWidth, nHeight);

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestBitmap aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupDrawBitmap();
          assertAndSetBackground(vcl::test::OutputDeviceTestBitmap::checkTransformedBitmap(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestBitmap aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupDrawTransformedBitmap();
          assertAndSetBackground(vcl::test::OutputDeviceTestBitmap::checkTransformedBitmap(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestBitmap aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupDrawBitmapExWithAlpha();
          assertAndSetBackground(vcl::test::OutputDeviceTestBitmap::checkBitmapExWithAlpha(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestBitmap aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupDrawMask();
          assertAndSetBackground(vcl::test::OutputDeviceTestBitmap::checkMask(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestBitmap aOutDevTest;
          BitmapEx aBitmap = aOutDevTest.setupDrawBlend();
          assertAndSetBackground(vcl::test::OutputDeviceTestBitmap::checkBlend(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap.GetBitmap(), rRenderContext);
      }
  }

  static void testInvert(vcl::RenderContext& rRenderContext, int nWidth, int nHeight)
  {
      tools::Rectangle aRectangle;
      size_t index = 0;

      std::vector<tools::Rectangle> aRegions = setupRegions(2, 2, nWidth, nHeight);

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestRect aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupInvert_NONE();
          assertAndSetBackground(vcl::test::OutputDeviceTestRect::checkInvertRectangle(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestRect aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupInvert_N50();
          assertAndSetBackground(vcl::test::OutputDeviceTestRect::checkInvertN50Rectangle(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestRect aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupInvert_TrackFrame();
          assertAndSetBackground(vcl::test::OutputDeviceTestRect::checkInvertTrackFrameRectangle(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestAnotherOutDev aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupXOR();
          assertAndSetBackground(vcl::test::OutputDeviceTestAnotherOutDev::checkXOR(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
  }

  static void testClip(vcl::RenderContext& rRenderContext, int nWidth, int nHeight)
  {
      tools::Rectangle aRectangle;
      size_t index = 0;

      std::vector<tools::Rectangle> aRegions = setupRegions(2, 2, nWidth, nHeight);

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestClip aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupClipRectangle();
          assertAndSetBackground(vcl::test::OutputDeviceTestClip::checkClip(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestClip aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupClipPolygon();
          assertAndSetBackground(vcl::test::OutputDeviceTestClip::checkClip(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestClip aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupClipPolyPolygon();
          assertAndSetBackground(vcl::test::OutputDeviceTestClip::checkClip(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestClip aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupClipB2DPolyPolygon();
          assertAndSetBackground(vcl::test::OutputDeviceTestClip::checkClip(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
  }

  static void testGradients(vcl::RenderContext& rRenderContext, int nWidth, int nHeight)
  {
      tools::Rectangle aRectangle;
      size_t index = 0;

      std::vector<tools::Rectangle> aRegions = setupRegions(4, 2, nWidth, nHeight);

      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestGradient aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupLinearGradient();
          assertAndSetBackground(vcl::test::OutputDeviceTestGradient::checkLinearGradient(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestGradient aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupLinearGradientAngled();
          assertAndSetBackground(vcl::test::OutputDeviceTestGradient::checkLinearGradientAngled(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestGradient aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupLinearGradientBorder();
          assertAndSetBackground(vcl::test::OutputDeviceTestGradient::checkLinearGradientBorder(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestGradient aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupLinearGradientIntensity();
          assertAndSetBackground(vcl::test::OutputDeviceTestGradient::checkLinearGradientIntensity(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestGradient aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupLinearGradientSteps();
          assertAndSetBackground(vcl::test::OutputDeviceTestGradient::checkLinearGradientSteps(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestGradient aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupAxialGradient();
          assertAndSetBackground(vcl::test::OutputDeviceTestGradient::checkAxialGradient(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestGradient aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupRadialGradient();
          assertAndSetBackground(vcl::test::OutputDeviceTestGradient::checkRadialGradient(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
      aRectangle = aRegions[index++];
      {
          vcl::test::OutputDeviceTestGradient aOutDevTest;
          Bitmap aBitmap = aOutDevTest.setupRadialGradientOfs();
          assertAndSetBackground(vcl::test::OutputDeviceTestGradient::checkRadialGradientOfs(aBitmap), aRectangle, rRenderContext);
          drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
      }
  }

  virtual void Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& /*rRect*/) override
  {
      if (mnTest % gnNumberOfTests == gnNumberOfTests - 1)
      {
          rRenderContext.SetBackground(Wallpaper(COL_GREEN));

          static size_t nTimeIndex = 0;
          static const size_t constSamplesFPS = 120;
          double fps = 0.0;

          if (mTimePoints.size() < constSamplesFPS)
          {
              mTimePoints.push_back(std::chrono::high_resolution_clock::now());
              nTimeIndex++;
          }
          else
          {
              size_t current = nTimeIndex % constSamplesFPS;
              mTimePoints[current] = std::chrono::high_resolution_clock::now();
              size_t last = (nTimeIndex + 1) % constSamplesFPS;
              auto ms = std::chrono::duration_cast<std::chrono::milliseconds>(mTimePoints[current] - mTimePoints[last]).count();
              fps = constSamplesFPS * 1000.0 / ms;
              nTimeIndex++;
          }

          double fTime = 0.5 + std::sin(nTimeIndex / 100.0) / 2.0;

          Size aSizePixel = GetSizePixel();

          mpVDev->SetAntialiasing(AntialiasingFlags::Enable | AntialiasingFlags::PixelSnapHairline);
          mpVDev->SetOutputSizePixel(aSizePixel);
          mpVDev->SetBackground(Wallpaper(COL_LIGHTGRAY));
          mpVDev->Erase();
          mpVDev->SetFillColor(COL_LIGHTRED);
          mpVDev->SetLineColor(COL_LIGHTBLUE);

          basegfx::B2DPolyPolygon polyPolygon;

          for (int b=10; b<14; b++)
          {
              basegfx::B2DPolygon polygon;
              for (double a=0.0; a<360.0; a+=0.5)
              {
                  double x = std::sin(basegfx::deg2rad(a)) * (b+1) * 20;
                  double y = std::cos(basegfx::deg2rad(a)) * (b+1) * 20;
                  polygon.append(basegfx::B2DPoint(x + 200 + 500 * fTime, y + 200 + 500 * fTime));
              }
              polygon.setClosed(true);
              polyPolygon.append(polygon);
          }

          mpVDev->DrawPolyPolygon(polyPolygon);

          tools::Rectangle aGradientRect(Point(200, 200), Size(200 + fTime * 300, 200 + fTime * 300));
          mpVDev->DrawGradient(aGradientRect, Gradient(GradientStyle::Linear, COL_YELLOW, COL_BLUE));

          rRenderContext.DrawOutDev(Point(), mpVDev->GetOutputSizePixel(),
                                    Point(), mpVDev->GetOutputSizePixel(),
                                    *mpVDev);
          rRenderContext.SetTextColor(COL_LIGHTRED);
          rRenderContext.DrawText(Point(10, 10), "FPS: " + OUString::number(int(fps)));
          return;
      }

      rRenderContext.SetBackground(Wallpaper(COL_GREEN));

      Size aSize = GetOutputSizePixel();

      long nWidth = aSize.Width();
      long nHeight = aSize.Height();

      if (mnTest % gnNumberOfTests == 0)
      {
          testRectangles(rRenderContext, nWidth, nHeight, false);
      }
      else if (mnTest % gnNumberOfTests == 1)
      {
          testRectangles(rRenderContext, nWidth, nHeight, true);
      }
      else if (mnTest % gnNumberOfTests == 2)
      {
          testFilledRectangles(rRenderContext, nWidth, nHeight);
      }
      else if (mnTest % gnNumberOfTests == 3)
      {
          testDiamondsAndBezier(rRenderContext, nWidth, nHeight);
      }
      else if (mnTest % gnNumberOfTests == 4)
      {
          testLines(rRenderContext, nWidth, nHeight);
      }
      else if (mnTest % gnNumberOfTests == 5)
      {
          testBitmaps(rRenderContext, nWidth, nHeight);
      }
      else if (mnTest % gnNumberOfTests == 6)
      {
          testInvert(rRenderContext, nWidth, nHeight);
      }
      else if (mnTest % gnNumberOfTests == 7)
      {
          testClip(rRenderContext, nWidth, nHeight);
      }
      else if (mnTest % gnNumberOfTests == 8)
      {
          testGradients(rRenderContext, nWidth, nHeight);
      }
      else if (mnTest % gnNumberOfTests == 9)
      {
          std::vector<tools::Rectangle> aRegions = setupRegions(2, 1, nWidth, nHeight);
          size_t index = 0;

          tools::Rectangle aRectangle = aRegions[index++];
          {
              vcl::test::OutputDeviceTestAnotherOutDev aOutDevTest;
              Bitmap aBitmap = aOutDevTest.setupDrawOutDev();
              assertAndSetBackground(vcl::test::OutputDeviceTestAnotherOutDev::checkDrawOutDev(aBitmap), aRectangle, rRenderContext);
              drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
          }
          aRectangle = aRegions[index++];
          {
              vcl::test::OutputDeviceTestLine aOutDevTest;
              Bitmap aBitmap = aOutDevTest.setupDashedLine();
              assertAndSetBackground(vcl::test::OutputDeviceTestLine::checkDashedLine(aBitmap), aRectangle, rRenderContext);
              drawBitmapScaledAndCentered(aRectangle, aBitmap, rRenderContext);
          }
      }
  }
722};

724}

726IMPL_LINK_NOARG(VisualBackendTestWindow, updateHdl, Timer *, void)void VisualBackendTestWindow::LinkStubupdateHdl(void * instance
, Timer * data) { return static_cast<VisualBackendTestWindow
 *>(instance)->updateHdl(data); } void VisualBackendTestWindow
::updateHdl(__attribute__ ((unused)) Timer *)
727{
  if (mbAnimate)
  {
      maUpdateTimer.SetTimeout(1.0);
      maUpdateTimer.Start();
      Invalidate();
  }
734}

736namespace {

738class VisualBackendTestApp : public Application
739{

741public:
  VisualBackendTestApp()
  {}

  virtual int Main() override
  {
      try
      {
          ScopedVclPtrInstance<VisualBackendTestWindow> aMainWindow;
1
Calling default constructor for 'ScopedVclPtrInstance<(anonymous namespace)::VisualBackendTestWindow>'→
3
←
Returning from default constructor for 'ScopedVclPtrInstance<(anonymous namespace)::VisualBackendTestWindow>'→

          aMainWindow->SetText("VCL Test");
          aMainWindow->Show();

          Application::Execute();
      }
4
←
Calling implicit destructor for 'ScopedVclPtrInstance<(anonymous namespace)::VisualBackendTestWindow>'→
5
←
Calling '~ScopedVclPtr'→
      catch (const css::uno::Exception&)
      {
          DBG_UNHANDLED_EXCEPTION("vcl.app", "Fatal")DbgUnhandledException( DbgGetCaughtException(), __func__, "/home/maarten/src/libreoffice/core/vcl/backendtest/VisualBackendTest.cxx"
 ":" "758" ": ", "vcl.app", "Fatal" );;
          return 1;
      }
      catch (const std::exception& rException)
      {
          SAL_WARN("vcl.app", "Fatal exception: " << rException.what())do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_WARN
, "vcl.app")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case
 SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult
( ::sal::detail::StreamStart() << "Fatal exception: " <<
 rException.what()) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN
), ("vcl.app"), ("/home/maarten/src/libreoffice/core/vcl/backendtest/VisualBackendTest.cxx"
 ":" "763" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Fatal exception: " << rException
.what()), 0); } else { ::std::ostringstream sal_detail_stream
; sal_detail_stream << "Fatal exception: " << rException
.what(); ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), (
"vcl.app"), ("/home/maarten/src/libreoffice/core/vcl/backendtest/VisualBackendTest.cxx"
 ":" "763" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Fatal exception: " << rException.what()) ==
 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl.app"
), ("/home/maarten/src/libreoffice/core/vcl/backendtest/VisualBackendTest.cxx"
 ":" "763" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Fatal exception: " << rException
.what()), 0); } else { ::std::ostringstream sal_detail_stream
; sal_detail_stream << "Fatal exception: " << rException
.what(); ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), (
"vcl.app"), ("/home/maarten/src/libreoffice/core/vcl/backendtest/VisualBackendTest.cxx"
 ":" "763" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
          return 1;
      }
      return 0;
  }

769protected:
  void Init() override
  {
      try
      {
          uno::Reference<uno::XComponentContext> xComponentContext = ::cppu::defaultBootstrap_InitialComponentContext();
          uno::Reference<lang::XMultiServiceFactory> xMSF(xComponentContext->getServiceManager(), uno::UNO_QUERY);

          if (!xMSF.is())
              Application::Abort("Bootstrap failure - no service manager");

          comphelper::setProcessServiceFactory(xMSF);
      }
      catch (const uno::Exception &e)
      {
          Application::Abort("Bootstrap exception " + e.Message);
      }
  }

  void DeInit() override
  {
      uno::Reference<lang::XComponent> xComponent(comphelper::getProcessComponentContext(), uno::UNO_QUERY_THROW);
      xComponent->dispose();
      comphelper::setProcessServiceFactory(nullptr);
  }
794};

796}

798void vclmain::createApplication()
799{
  static VisualBackendTestApp aApplication;
801}

803/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

←

/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx

→

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
* 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/.
*
* This file incorporates work covered by the following license notice:
*
*   Licensed to the Apache Software Foundation (ASF) under one or more
*   contributor license agreements. See the NOTICE file distributed
*   with this work for additional information regarding copyright
*   ownership. The ASF licenses this file to you under the Apache
*   License, Version 2.0 (the "License"); you may not use this file
*   except in compliance with the License. You may obtain a copy of
*   the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/

20#ifndef INCLUDED_VCL_PTR_HXX
21#define INCLUDED_VCL_PTR_HXX

23#include <sal/config.h>

25#include <rtl/ref.hxx>

27#include <utility>
28#include <type_traits>

30#ifdef DBG_UTIL
31#ifndef _WIN32
32#include <vcl/vclmain.hxx>
33#endif
34#endif

36class VclReferenceBase;

38namespace vcl::detail {

40template<typename>
41constexpr bool isIncompleteOrDerivedFromVclReferenceBase(...) { return true; }

43template<typename T> constexpr bool isIncompleteOrDerivedFromVclReferenceBase(
  int (*)[sizeof(T)])
45{ return std::is_base_of<VclReferenceBase, T>::value; }

47} // namespace vcl::detail

49/**
* A thin wrapper around rtl::Reference to implement the acquire and dispose semantics we want for references to vcl::Window subclasses.
*
* For more details on the design please see vcl/README.lifecycle
*
* @param reference_type must be a subclass of vcl::Window
*/
56template <class reference_type>
57class VclPtr
58{
  static_assert(
      vcl::detail::isIncompleteOrDerivedFromVclReferenceBase<reference_type>(
          nullptr),
      "template argument type must be derived from VclReferenceBase");

  ::rtl::Reference<reference_type> m_rInnerRef;

66public:
  /** Constructor...
   */
  VclPtr()
      : m_rInnerRef()
  {}

  /** Constructor...
   */
  VclPtr (reference_type * pBody)
      : m_rInnerRef(pBody)
  {}

  /** Constructor... that doesn't take a ref.
   */
  VclPtr (reference_type * pBody, __sal_NoAcquire)
      : m_rInnerRef(pBody, SAL_NO_ACQUIRE)
  {}

  /** Up-casting conversion constructor: Copies interface reference.

      Does not work for up-casts to ambiguous bases.  For the special case of
      up-casting to Reference< XInterface >, see the corresponding conversion
      operator.

      @param rRef another reference
  */
  template< class derived_type >
  VclPtr(
      const VclPtr< derived_type > & rRef,
      typename std::enable_if<
          std::is_base_of<reference_type, derived_type>::value, int>::type
          = 0 )
      : m_rInnerRef( static_cast<reference_type*>(rRef) )
  {
  }

103#if defined(DBG_UTIL) && !defined(_WIN32)
  virtual ~VclPtr()
  {
      assert(m_rInnerRef.get() == nullptr || vclmain::isAlive())(static_cast <bool> (m_rInnerRef.get() == nullptr || vclmain
::isAlive()) ? void (0) : __assert_fail ("m_rInnerRef.get() == nullptr || vclmain::isAlive()"
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 106, __extension__ __PRETTY_FUNCTION__));
      // We can be one of the intermediate counts, but if we are the last
      // VclPtr keeping this object alive, then something forgot to call dispose().
      assert((!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1)(static_cast <bool> ((!m_rInnerRef.get() || m_rInnerRef
->isDisposed() || m_rInnerRef->getRefCount() > 1) &&
 "someone forgot to call dispose()") ? void (0) : __assert_fail
 ("(!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1) && \"someone forgot to call dispose()\""
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 110, __extension__ __PRETTY_FUNCTION__))
              && "someone forgot to call dispose()")(static_cast <bool> ((!m_rInnerRef.get() || m_rInnerRef
->isDisposed() || m_rInnerRef->getRefCount() > 1) &&
 "someone forgot to call dispose()") ? void (0) : __assert_fail
 ("(!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1) && \"someone forgot to call dispose()\""
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 110, __extension__ __PRETTY_FUNCTION__));
  }
  VclPtr(VclPtr const &) = default;
  VclPtr(VclPtr &&) = default;
  VclPtr & operator =(VclPtr const &) = default;
  VclPtr & operator =(VclPtr &&) = default;
116#endif

  /**
   * A construction helper for VclPtr. Since VclPtr types are created
   * with a reference-count of one - to help fit into the existing
   * code-flow; this helps us to construct them easily.
   *
   * For more details on the design please see vcl/README.lifecycle
   *
   * @tparam reference_type must be a subclass of vcl::Window
   */
  template<typename... Arg> [[nodiscard]] static VclPtr< reference_type > Create(Arg &&... arg)
  {
      return VclPtr< reference_type >( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE );
  }

  /** Probably most common used: handle->someBodyOp().
   */
  reference_type * operator->() const
  {
      return m_rInnerRef.get();
  }

  /** Get the body. Can be used instead of operator->().
       I.e. handle->someBodyOp() and handle.get()->someBodyOp()
       are the same.
    */
  reference_type * get() const
  {
      return m_rInnerRef.get();
  }

  void set(reference_type *pBody)
  {
      m_rInnerRef.set(pBody);
  }

  void reset(reference_type *pBody)
  {
      m_rInnerRef.set(pBody);
  }

  /** Up-casting copy assignment operator.

      Does not work for up-casts to ambiguous bases.

      @param rRef another reference
  */
  template<typename derived_type>
  typename std::enable_if<
      std::is_base_of<reference_type, derived_type>::value,
      VclPtr &>::type
  operator =(VclPtr<derived_type> const & rRef)
  {
      m_rInnerRef.set(rRef.get());
      return *this;
  }

  VclPtr & operator =(reference_type * pBody)
  {
      m_rInnerRef.set(pBody);
      return *this;
  }

  operator reference_type * () const
  {
      return m_rInnerRef.get();
  }

  explicit operator bool () const
  {
      return m_rInnerRef.get() != nullptr;
  }

  void clear()
  {
      m_rInnerRef.clear();
  }

  void reset()
  {
      m_rInnerRef.clear();
  }

  void disposeAndClear()
  {
      // hold it alive for the lifetime of this method
      ::rtl::Reference<reference_type> aTmp(m_rInnerRef);
      m_rInnerRef.clear(); // we should use some 'swap' method ideally ;-)
7
←
Calling 'Reference::clear'→
14
←
Returning; memory was released→
      if (aTmp.get()) {
15
←
Calling 'Reference::get'→
          aTmp->disposeOnce();
      }
  }

  /** Needed to place VclPtr's into STL collection.
   */
  bool operator< (const VclPtr<reference_type> & handle) const
  {
      return (m_rInnerRef < handle.m_rInnerRef);
  }
216}; // class VclPtr

218template<typename T1, typename T2>
219inline bool operator ==(VclPtr<T1> const & p1, VclPtr<T2> const & p2) {
  return p1.get() == p2.get();
221}

223template<typename T> inline bool operator ==(VclPtr<T> const & p1, T const * p2)
224{
  return p1.get() == p2;
226}

228template<typename T> inline bool operator ==(VclPtr<T> const & p1, T * p2) {
  return p1.get() == p2;
230}

232template<typename T> inline bool operator ==(T const * p1, VclPtr<T> const & p2)
233{
  return p1 == p2.get();
235}

237template<typename T> inline bool operator ==(T * p1, VclPtr<T> const & p2) {
  return p1 == p2.get();
239}

241template<typename T1, typename T2>
242inline bool operator !=(VclPtr<T1> const & p1, VclPtr<T2> const & p2) {
  return !(p1 == p2);
244}

246template<typename T> inline bool operator !=(VclPtr<T> const & p1, T const * p2)
247{
  return !(p1 == p2);
249}

251template<typename T> inline bool operator !=(VclPtr<T> const & p1, T * p2) {
  return !(p1 == p2);
253}

255template<typename T> inline bool operator !=(T const * p1, VclPtr<T> const & p2)
256{
  return !(p1 == p2);
258}

260template<typename T> inline bool operator !=(T * p1, VclPtr<T> const & p2) {
  return !(p1 == p2);
262}

264/**
* A construction helper for a temporary VclPtr. Since VclPtr types
* are created with a reference-count of one - to help fit into
* the existing code-flow; this helps us to construct them easily.
* see also VclPtr::Create and ScopedVclPtr
*
* For more details on the design please see vcl/README.lifecycle
*
* @param reference_type must be a subclass of vcl::Window
*/
274template <class reference_type>
275class SAL_WARN_UNUSED__attribute__((warn_unused)) VclPtrInstance final : public VclPtr<reference_type>
276{
277public:
  template<typename... Arg> VclPtrInstance(Arg &&... arg)
      : VclPtr<reference_type>( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE )
  {
  }

  /**
   * Override and disallow this, to prevent people accidentally calling it and actually
   * getting VclPtr::Create and getting a naked VclPtr<> instance
   */
  template<typename... Arg> static VclPtrInstance< reference_type > Create(Arg &&... ) = delete;
288};

290template <class reference_type>
291class ScopedVclPtr : public VclPtr<reference_type>
292{
293public:
  /** Constructor...
   */
  ScopedVclPtr()
      : VclPtr<reference_type>()
  {}

  /** Constructor
   */
  ScopedVclPtr (reference_type * pBody)
      : VclPtr<reference_type>(pBody)
  {}

  /** Copy constructor...
   */
  ScopedVclPtr (const VclPtr<reference_type> & handle)
      : VclPtr<reference_type>(handle)
  {}

  /**
     Assignment that releases the last reference.
   */
  void disposeAndReset(reference_type *pBody)
  {
      if (pBody != this->get()) {
          VclPtr<reference_type>::disposeAndClear();
          VclPtr<reference_type>::set(pBody);
      }
  }

  /**
     Assignment that releases the last reference.
   */
  ScopedVclPtr<reference_type>& operator = (reference_type * pBody)
  {
      disposeAndReset(pBody);
      return *this;
  }

  /** Up-casting conversion constructor: Copies interface reference.

      Does not work for up-casts to ambiguous bases.  For the special case of
      up-casting to Reference< XInterface >, see the corresponding conversion
      operator.

      @param rRef another reference
  */
  template< class derived_type >
  ScopedVclPtr(
      const VclPtr< derived_type > & rRef,
      typename std::enable_if<
          std::is_base_of<reference_type, derived_type>::value, int>::type
          = 0 )
      : VclPtr<reference_type>( rRef )
  {
  }

  /** Up-casting assignment operator.

      Does not work for up-casts to ambiguous bases.

      @param rRef another VclPtr
  */
  template<typename derived_type>
  typename std::enable_if<
      std::is_base_of<reference_type, derived_type>::value,
      ScopedVclPtr &>::type
  operator =(VclPtr<derived_type> const & rRef)
  {
      disposeAndReset(rRef.get());
      return *this;
  }

  /**
   * Override and disallow this, to prevent people accidentally calling it and actually
   * getting VclPtr::Create and getting a naked VclPtr<> instance
   */
  template<typename... Arg> static ScopedVclPtr< reference_type > Create(Arg &&... ) = delete;

  ~ScopedVclPtr()
  {
      VclPtr<reference_type>::disposeAndClear();
6
←
Calling 'VclPtr::disposeAndClear'→
      assert(VclPtr<reference_type>::get() == nullptr)(static_cast <bool> (VclPtr<reference_type>::get(
) == nullptr) ? void (0) : __assert_fail ("VclPtr<reference_type>::get() == nullptr"
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 375, __extension__ __PRETTY_FUNCTION__)); // make sure there are no lingering references
  }

378private:
  // Most likely we don't want this default copy-constructor.
  ScopedVclPtr (const ScopedVclPtr<reference_type> &) = delete;
  // And certainly we don't want a default assignment operator.
  ScopedVclPtr<reference_type>& operator = (const ScopedVclPtr<reference_type> &) = delete;
  // And disallow reset as that doesn't call disposeAndClear on the original reference
  void reset() = delete;
  void reset(reference_type *pBody) = delete;

387protected:
  ScopedVclPtr (reference_type * pBody, __sal_NoAcquire)
      : VclPtr<reference_type>(pBody, SAL_NO_ACQUIRE)
  {}
391};

393/**
* A construction helper for ScopedVclPtr. Since VclPtr types are created
* with a reference-count of one - to help fit into the existing
* code-flow; this helps us to construct them easily.
*
* For more details on the design please see vcl/README.lifecycle
*
* @param reference_type must be a subclass of vcl::Window
*/
402#if defined _MSC_VER
403#pragma warning(push)
404#pragma warning(disable: 4521) // " multiple copy constructors specified"
405#endif
406template <class reference_type>
407class SAL_WARN_UNUSED__attribute__((warn_unused)) ScopedVclPtrInstance final : public ScopedVclPtr<reference_type>
408{
409public:
  template<typename... Arg> ScopedVclPtrInstance(Arg &&... arg)
      : ScopedVclPtr<reference_type>( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE )
2
←
Memory is allocated→
  {
  }

  /**
   * Override and disallow this, to prevent people accidentally calling it and actually
   * getting VclPtr::Create and getting a naked VclPtr<> instance
   */
  template<typename... Arg> static ScopedVclPtrInstance< reference_type > Create(Arg &&...) = delete;

421private:
  // Prevent the above perfect forwarding ctor from hijacking (accidental)
  // attempts at ScopedVclPtrInstance copy construction (where the hijacking
  // would typically lead to somewhat obscure error messages); both non-const
  // and const variants are needed here, as the ScopedVclPtr base class has a
  // const--variant copy ctor, so the implicitly declared copy ctor for
  // ScopedVclPtrInstance would also be the const variant, so non-const copy
  // construction attempts would be hijacked by the perfect forwarding ctor;
  // but if we only declared a non-const variant here, the const variant would
  // no longer be implicitly declared (as there would already be an explicitly
  // declared copy ctor), so const copy construction attempts would then be
  // hijacked by the perfect forwarding ctor:
  ScopedVclPtrInstance(ScopedVclPtrInstance &) = delete;
  ScopedVclPtrInstance(ScopedVclPtrInstance const &) = delete;
435};
436#if defined _MSC_VER
437#pragma warning(pop)
438#endif

440#endif // INCLUDED_VCL_PTR_HXX

442/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

←

/home/maarten/src/libreoffice/core/include/rtl/ref.hxx

→

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
* 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/.
*
* This file incorporates work covered by the following license notice:
*
*   Licensed to the Apache Software Foundation (ASF) under one or more
*   contributor license agreements. See the NOTICE file distributed
*   with this work for additional information regarding copyright
*   ownership. The ASF licenses this file to you under the Apache
*   License, Version 2.0 (the "License"); you may not use this file
*   except in compliance with the License. You may obtain a copy of
*   the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/

20#ifndef INCLUDED_RTL_REF_HXX
21#define INCLUDED_RTL_REF_HXX

23#include "sal/config.h"

25#include <cassert>
26#include <cstddef>
27#include <functional>
28#ifdef LIBO_INTERNAL_ONLY1
29#include <type_traits>
30#endif

32#include "sal/types.h"

34namespace rtl
35{

37/** Template reference class for reference type.
38*/
39template <class reference_type>
40class Reference
41{
  /** The <b>reference_type</b> body pointer.
   */
  reference_type * m_pBody;


47public:
  /** Constructor...
   */
  Reference()
      : m_pBody (NULL__null)
  {}


  /** Constructor...
   */
  Reference (reference_type * pBody, __sal_NoAcquire)
      : m_pBody (pBody)
  {
  }

  /** Constructor...
   */
  Reference (reference_type * pBody)
      : m_pBody (pBody)
  {
      if (m_pBody)
          m_pBody->acquire();
  }

  /** Copy constructor...
   */
  Reference (const Reference<reference_type> & handle)
      : m_pBody (handle.m_pBody)
  {
      if (m_pBody)
          m_pBody->acquire();
  }

80#ifdef LIBO_INTERNAL_ONLY1
  /** Move constructor...
   */
  Reference (Reference<reference_type> && handle) noexcept
      : m_pBody (handle.m_pBody)
  {
      handle.m_pBody = nullptr;
  }
88#endif

90#if defined LIBO_INTERNAL_ONLY1
  /** Up-casting conversion constructor: Copies interface reference.

      Does not work for up-casts to ambiguous bases.

      @param rRef another reference
  */
  template< class derived_type >
  inline Reference(
      const Reference< derived_type > & rRef,
      std::enable_if_t<std::is_base_of_v<reference_type, derived_type>, int> = 0 )
      : m_pBody (rRef.get())
  {
      if (m_pBody)
          m_pBody->acquire();
  }
106#endif

  /** Destructor...
   */
  ~Reference() COVERITY_NOEXCEPT_FALSE
  {
      if (m_pBody)
          m_pBody->release();
  }

  /** Set...
       Similar to assignment.
   */
  Reference<reference_type> &
  SAL_CALL set (reference_type * pBody)
  {
      if (pBody)
          pBody->acquire();
      reference_type * const pOld = m_pBody;
      m_pBody = pBody;
      if (pOld)
          pOld->release();
      return *this;
  }

  /** Assignment.
       Unbinds this instance from its body (if bound) and
       bind it to the body represented by the handle.
   */
  Reference<reference_type> &
  SAL_CALL operator= (const Reference<reference_type> & handle)
  {
      return set( handle.m_pBody );
  }

141#ifdef LIBO_INTERNAL_ONLY1
  /** Assignment.
   *   Unbinds this instance from its body (if bound),
   *   bind it to the body represented by the handle, and
   *   set the body represented by the handle to nullptr.
   */
  Reference<reference_type> &
  operator= (Reference<reference_type> && handle)
  {
      // self-movement guts ourself
      if (m_pBody)
          m_pBody->release();
      m_pBody = handle.m_pBody;
      handle.m_pBody = nullptr;
      return *this;
  }
157#endif

  /** Assignment...
   */
  Reference<reference_type> &
  SAL_CALL operator= (reference_type * pBody)
  {
      return set( pBody );
  }

  /** Unbind the body from this handle.
       Note that for a handle representing a large body,
       "handle.clear().set(new body());" _might_
       perform a little bit better than "handle.set(new body());",
       since in the second case two large objects exist in memory
       (the old body and the new body).
   */
  Reference<reference_type> & SAL_CALL clear()
  {
      if (m_pBody7.1
Field 'm_pBody' is non-null
1
Field 'm_pBody' is non-null
1
Field 'm_pBody' is non-null
1
Field 'm_pBody' is non-null
)
8
←
Taking true branch→
      {
          reference_type * const pOld = m_pBody;
          m_pBody = NULL__null;
          pOld->release();
9
←
Calling 'VclReferenceBase::release'→
13
←
Returning; memory was released→
      }
      return *this;
  }


  /** Get the body. Can be used instead of operator->().
       I.e. handle->someBodyOp() and handle.get()->someBodyOp()
       are the same.
   */
  reference_type * SAL_CALL get() const
  {
      return m_pBody;
16
←
Use of memory after it is freed
  }


  /** Probably most common used: handle->someBodyOp().
   */
  reference_type * SAL_CALL operator->() const
  {
      assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
 ("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 200, __extension__ __PRETTY_FUNCTION__));
      return m_pBody;
  }


  /** Allows (*handle).someBodyOp().
  */
  reference_type & SAL_CALL operator*() const
  {
      assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
 ("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 209, __extension__ __PRETTY_FUNCTION__));
      return *m_pBody;
  }


  /** Returns True if the handle does point to a valid body.
   */
  bool SAL_CALL is() const
  {
      return (m_pBody != NULL__null);
  }

221#if defined LIBO_INTERNAL_ONLY1
  /** Returns True if the handle does point to a valid body.
   */
  explicit operator bool() const
  {
      return is();
  }
228#endif

  /** Returns True if this points to pBody.
   */
  bool SAL_CALL operator== (const reference_type * pBody) const
  {
      return (m_pBody == pBody);
  }


  /** Returns True if handle points to the same body.
   */
  bool
  SAL_CALL operator== (const Reference<reference_type> & handle) const
  {
      return (m_pBody == handle.m_pBody);
  }


  /** Needed to place References into STL collection.
   */
  bool
  SAL_CALL operator!= (const Reference<reference_type> & handle) const
  {
      return (m_pBody != handle.m_pBody);
  }


  /** Needed to place References into STL collection.
   */
  bool
  SAL_CALL operator< (const Reference<reference_type> & handle) const
  {
      return (m_pBody < handle.m_pBody);
  }


  /** Needed to place References into STL collection.
   */
  bool
  SAL_CALL operator> (const Reference<reference_type> & handle) const
  {
      return (m_pBody > handle.m_pBody);
  }
272};

274} // namespace rtl

276#if defined LIBO_INTERNAL_ONLY1
277namespace std
278{

280/// @cond INTERNAL
281/**
Make rtl::Reference hashable by default for use in STL containers.

@since LibreOffice 6.3
285*/
286template<typename T>
287struct hash<::rtl::Reference<T>>
288{
  std::size_t operator()(::rtl::Reference<T> const & s) const
  { return std::size_t(s.get()); }
291};
292/// @endcond

294}

296#endif

298#endif /* ! INCLUDED_RTL_REF_HXX */

300/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

←

/home/maarten/src/libreoffice/core/include/vcl/vclreferencebase.hxx

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
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#ifndef INCLUDED_VCL_Reference_HXX
20#define INCLUDED_VCL_Reference_HXX
21 
22#include <vcl/dllapi.h>
23#include <osl/interlck.h>
24 
25class VCL_DLLPUBLIC__attribute__ ((visibility("default"))) VclReferenceBase
26{
27    mutable oslInterlockedCount mnRefCnt;
28 
29    template<typename T> friend class VclPtr;
30 
31public:
32    void acquire() const
33    {
34        osl_atomic_increment(&mnRefCnt)__sync_add_and_fetch((&mnRefCnt), 1);
35    }
36 
37    void release() const
38    {
39        if (osl_atomic_decrement(&mnRefCnt)__sync_sub_and_fetch((&mnRefCnt), 1) == 0)
10
←
Assuming the condition is true→
11
←
Taking true branch→
40            delete this;
12
←
Memory is released→
41    }
42#ifdef DBG_UTIL
43#ifndef _WIN32
44    sal_Int32 getRefCount() const { return mnRefCnt; }
45#endif
46#endif
47 
48 
49private:
50    VclReferenceBase(const VclReferenceBase&) = delete;
51    VclReferenceBase& operator=(const VclReferenceBase&) = delete;
52 
53    bool                        mbDisposed : 1;
54 
55protected:
56                                VclReferenceBase();
57protected:
58    virtual                     ~VclReferenceBase();
59 
60protected:
61    virtual void                dispose();
62 
63public:
64    void                        disposeOnce();
65    bool                        isDisposed() const { return mbDisposed; }
66 
67};
68#endif