1 files changed, 478 insertions, 0 deletions
diff --git a/vcl/backendtest/outputdevice/common.cxx b/vcl/backendtest/outputdevice/common.cxx
new file mode 100644
index 000000000..a5d032315
--- /dev/null
+++ b/vcl/backendtest/outputdevice/common.cxx
@@ -0,0 +1,478 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <test/outputdevice.hxx>
+#include <bitmapwriteaccess.hxx>
+#include <salgdi.hxx>
+
+namespace vcl::test {
+
+namespace
+{
+
+int deltaColor(BitmapColor aColor1, BitmapColor aColor2)
+{
+    int deltaR = std::abs(aColor1.GetRed()   - aColor2.GetRed());
+    int deltaG = std::abs(aColor1.GetGreen() - aColor2.GetGreen());
+    int deltaB = std::abs(aColor1.GetBlue()  - aColor2.GetBlue());
+
+    return std::max(std::max(deltaR, deltaG), deltaB);
+}
+
+void checkValue(BitmapScopedWriteAccess& pAccess, int x, int y, Color aExpected,
+                      int& nNumberOfQuirks, int& nNumberOfErrors, bool bQuirkMode, int nColorDeltaThresh = 0)
+{
+    const bool bColorize = false;
+    Color aColor = pAccess->GetPixel(y, x);
+    int nColorDelta = deltaColor(aColor, aExpected);
+
+    if (nColorDelta <= nColorDeltaThresh)
+    {
+        if (bColorize)
+            pAccess->SetPixel(y, x, COL_LIGHTGREEN);
+    }
+    else if (bQuirkMode)
+    {
+        nNumberOfQuirks++;
+        if (bColorize)
+            pAccess->SetPixel(y, x, COL_YELLOW);
+    }
+    else
+    {
+        nNumberOfErrors++;
+        if (bColorize)
+            pAccess->SetPixel(y, x, COL_LIGHTRED);
+    }
+}
+
+TestResult checkRect(Bitmap& rBitmap, int aLayerNumber, Color aExpectedColor)
+{
+    BitmapScopedWriteAccess pAccess(rBitmap);
+    long nHeight = pAccess->Height();
+    long nWidth = pAccess->Width();
+
+    long firstX = 0 + aLayerNumber;
+    long firstY = 0 + aLayerNumber;
+
+    long lastX = nWidth  - aLayerNumber - 1;
+    long lastY = nHeight - aLayerNumber - 1;
+
+    TestResult aResult = TestResult::Passed;
+    int nNumberOfQuirks = 0;
+    int nNumberOfErrors = 0;
+
+    // check corner quirks
+    checkValue(pAccess, firstX, firstY, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, true);
+    checkValue(pAccess, lastX,  firstY, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, true);
+    checkValue(pAccess, firstX, lastY,  aExpectedColor, nNumberOfQuirks, nNumberOfErrors, true);
+    checkValue(pAccess, lastX,  lastY,  aExpectedColor, nNumberOfQuirks, nNumberOfErrors, true);
+
+    for (long y = firstY + 1; y <= lastY - 1; y++)
+    {
+        checkValue(pAccess, firstX, y,  aExpectedColor, nNumberOfQuirks, nNumberOfErrors, false);
+        checkValue(pAccess, lastX,  y,  aExpectedColor, nNumberOfQuirks, nNumberOfErrors, false);
+    }
+    for (long x = firstX + 1; x <= lastX - 1; x++)
+    {
+        checkValue(pAccess, x, firstY, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, false);
+        checkValue(pAccess, x, lastY,  aExpectedColor, nNumberOfQuirks, nNumberOfErrors, false);
+    }
+    if (nNumberOfQuirks > 0)
+        aResult = TestResult::PassedWithQuirks;
+    if (nNumberOfErrors > 0)
+        aResult = TestResult::Failed;
+    return aResult;
+}
+
+TestResult checkHorizontalVerticalDiagonalLines(Bitmap& rBitmap, Color aExpectedColor, int nColorThresh)
+{
+    BitmapScopedWriteAccess pAccess(rBitmap);
+    long nWidth  = pAccess->Width();
+    long nHeight = pAccess->Height();
+
+    TestResult aResult = TestResult::Passed;
+    int nNumberOfQuirks = 0;
+    int nNumberOfErrors = 0;
+
+    // check horizontal line
+    {
+        long startX = 4;
+        long endX   = nWidth - 2;
+
+        long y = 1;
+
+        checkValue(pAccess, startX, y, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, true, nColorThresh);
+        checkValue(pAccess, endX,   y, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, true, nColorThresh);
+
+        for (long x = startX + 1; x <= endX - 1; x++)
+        {
+            checkValue(pAccess, x, y, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, false, nColorThresh);
+        }
+    }
+
+    // check vertical line
+    {
+        long startY = 4;
+        long endY   = nHeight - 2;
+
+        long x = 1;
+
+        checkValue(pAccess, x, startY, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, true, nColorThresh);
+        checkValue(pAccess, x, endY,   aExpectedColor, nNumberOfQuirks, nNumberOfErrors, true, nColorThresh);
+
+        for (long y = startY + 1; y <= endY - 1; y++)
+        {
+            checkValue(pAccess, x, y, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, false, nColorThresh);
+        }
+    }
+
+    // check diagonal line
+    {
+        long startX = 1;
+        long endX   = nWidth - 2;
+
+        long startY = 1;
+        long endY   = nHeight - 2;
+
+        long x = startX;
+        long y = startY;
+
+        checkValue(pAccess, startX, startY, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, true, nColorThresh);
+        checkValue(pAccess, endX,   endY,   aExpectedColor, nNumberOfQuirks, nNumberOfErrors, true, nColorThresh);
+
+        x++; y++;
+
+        while(y <= endY - 1  && x <= endX - 1)
+        {
+            checkValue(pAccess, x, y, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, false, nColorThresh);
+            x++; y++;
+        }
+    }
+
+    if (nNumberOfQuirks > 0)
+        aResult = TestResult::PassedWithQuirks;
+    if (nNumberOfErrors > 0)
+        aResult = TestResult::Failed;
+    return aResult;
+}
+
+TestResult checkDiamondLine(Bitmap& rBitmap, int aLayerNumber, Color aExpectedColor)
+{
+    BitmapScopedWriteAccess pAccess(rBitmap);
+    long nHeight = pAccess->Height();
+    long nWidth = pAccess->Width();
+
+    long midX = nWidth  / 2;
+    long midY = nHeight / 2;
+
+    long firstX = aLayerNumber;
+    long lastX  = nWidth - aLayerNumber - 1;
+
+    long firstY = aLayerNumber;
+    long lastY  = nHeight - aLayerNumber - 1;
+
+    long offsetFromMid = 0;
+
+    TestResult aResult = TestResult::Passed;
+    int nNumberOfQuirks = 0;
+    int nNumberOfErrors = 0;
+
+    checkValue(pAccess, firstX, midY, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, true);
+    checkValue(pAccess, lastX,  midY, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, true);
+    checkValue(pAccess, midX, firstY, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, true);
+    checkValue(pAccess, midX,  lastY, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, true);
+
+    offsetFromMid = 1;
+    for (long x = firstX + 1; x <= midX - 1; x++)
+    {
+        checkValue(pAccess, x, midY - offsetFromMid, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, false);
+        checkValue(pAccess, x, midY + offsetFromMid, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, false);
+
+        offsetFromMid++;
+    }
+
+    offsetFromMid = midY - aLayerNumber - 1;
+
+    for (long x = midX + 1; x <= lastX - 1; x++)
+    {
+        checkValue(pAccess, x, midY - offsetFromMid, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, false);
+        checkValue(pAccess, x, midY + offsetFromMid, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, false);
+
+        offsetFromMid--;
+    }
+
+    if (nNumberOfQuirks > 0)
+        aResult = TestResult::PassedWithQuirks;
+    if (nNumberOfErrors > 0)
+        aResult = TestResult::Failed;
+    return aResult;
+}
+
+} // end anonymous namespace
+
+const Color OutputDeviceTestCommon::constBackgroundColor(COL_LIGHTGRAY);
+const Color OutputDeviceTestCommon::constLineColor(COL_LIGHTBLUE);
+const Color OutputDeviceTestCommon::constFillColor(COL_BLUE);
+
+OutputDeviceTestCommon::OutputDeviceTestCommon()
+{}
+
+OUString OutputDeviceTestCommon::getRenderBackendName() const
+{
+    if (mpVirtualDevice && mpVirtualDevice->GetGraphics())
+    {
+        SalGraphics const * pGraphics = mpVirtualDevice->GetGraphics();
+        return pGraphics->getRenderBackendName();
+    }
+    return OUString();
+}
+
+void OutputDeviceTestCommon::initialSetup(long nWidth, long nHeight, Color aColor, bool bEnableAA, bool bAlphaVirtualDevice)
+{
+    if (bAlphaVirtualDevice)
+        mpVirtualDevice = VclPtr<VirtualDevice>::Create(DeviceFormat::DEFAULT, DeviceFormat::DEFAULT);
+    else
+        mpVirtualDevice = VclPtr<VirtualDevice>::Create(DeviceFormat::DEFAULT);
+
+    maVDRectangle = tools::Rectangle(Point(), Size (nWidth, nHeight));
+    mpVirtualDevice->SetOutputSizePixel(maVDRectangle.GetSize());
+    if (bEnableAA)
+        mpVirtualDevice->SetAntialiasing(AntialiasingFlags::EnableB2dDraw | AntialiasingFlags::PixelSnapHairline);
+    else
+        mpVirtualDevice->SetAntialiasing(AntialiasingFlags::NONE);
+    mpVirtualDevice->SetBackground(Wallpaper(aColor));
+    mpVirtualDevice->Erase();
+}
+
+TestResult OutputDeviceTestCommon::checkLines(Bitmap& rBitmap)
+{
+    return checkHorizontalVerticalDiagonalLines(rBitmap, constLineColor, 0);
+}
+
+TestResult OutputDeviceTestCommon::checkAALines(Bitmap& rBitmap)
+{
+    return checkHorizontalVerticalDiagonalLines(rBitmap, constLineColor, 30); // 30 color values threshold delta
+}
+
+static void checkResult(TestResult eResult, TestResult & eTotal)
+{
+    if (eTotal == TestResult::Failed)
+        return;
+
+    if (eResult == TestResult::Failed)
+        eTotal = TestResult::Failed;
+
+    if (eResult == TestResult::PassedWithQuirks)
+        eTotal = TestResult::PassedWithQuirks;
+}
+
+TestResult OutputDeviceTestCommon::checkInvertRectangle(Bitmap& aBitmap)
+{
+    TestResult aReturnValue = TestResult::Passed;
+    TestResult eResult;
+
+    std::vector<Color> aExpected{ COL_WHITE, COL_WHITE };
+    eResult = checkRectangles(aBitmap, aExpected);
+    checkResult(eResult, aReturnValue);
+
+    eResult = checkFilled(aBitmap, tools::Rectangle(Point(2, 2), Size(8, 8)), COL_LIGHTCYAN);
+    checkResult(eResult, aReturnValue);
+
+    eResult = checkFilled(aBitmap, tools::Rectangle(Point(10, 2), Size(8, 8)), COL_LIGHTMAGENTA);
+    checkResult(eResult, aReturnValue);
+
+    eResult = checkFilled(aBitmap, tools::Rectangle(Point(2, 10), Size(8, 8)), COL_YELLOW);
+    checkResult(eResult, aReturnValue);
+
+    eResult = checkFilled(aBitmap, tools::Rectangle(Point(10, 10), Size(8, 8)), COL_BLACK);
+    checkResult(eResult, aReturnValue);
+
+    return aReturnValue;
+}
+
+TestResult OutputDeviceTestCommon::checkChecker(Bitmap& rBitmap, sal_Int32 nStartX, sal_Int32 nEndX, sal_Int32 nStartY, sal_Int32 nEndY, std::vector<Color> const & rExpected)
+{
+    TestResult aReturnValue = TestResult::Passed;
+
+    int choice = 0;
+    for (sal_Int32 y = nStartY; y <= nEndY; ++y)
+    {
+        for (sal_Int32 x = nStartX; x <= nEndX; ++x)
+        {
+            TestResult eResult = checkFilled(rBitmap, tools::Rectangle(Point(x, y), Size(1, 1)), rExpected[choice % 2]);
+            checkResult(eResult, aReturnValue);
+            choice++;
+        }
+        choice++;
+    }
+    return aReturnValue;
+}
+
+TestResult OutputDeviceTestCommon::checkInvertN50Rectangle(Bitmap& aBitmap)
+{
+    TestResult aReturnValue = TestResult::Passed;
+    TestResult eResult;
+
+    std::vector<Color> aExpected{ COL_WHITE, COL_WHITE };
+    eResult = checkRectangles(aBitmap, aExpected);
+    checkResult(eResult, aReturnValue);
+
+    eResult = checkChecker(aBitmap, 2, 9, 2, 9, { COL_LIGHTCYAN, COL_LIGHTRED });
+    checkResult(eResult, aReturnValue);
+    eResult = checkChecker(aBitmap, 2, 9, 10, 17, { COL_YELLOW, COL_LIGHTBLUE });
+    checkResult(eResult, aReturnValue);
+    eResult = checkChecker(aBitmap, 10, 17, 2, 9, { COL_LIGHTMAGENTA, COL_LIGHTGREEN });
+    checkResult(eResult, aReturnValue);
+    eResult = checkChecker(aBitmap, 10, 17, 10, 17, { COL_BLACK, COL_WHITE });
+    checkResult(eResult, aReturnValue);
+
+    return aReturnValue;
+}
+
+TestResult OutputDeviceTestCommon::checkInvertTrackFrameRectangle(Bitmap& aBitmap)
+{
+    std::vector<Color> aExpected
+    {
+        COL_WHITE, COL_WHITE
+    };
+    return checkRectangles(aBitmap, aExpected);
+}
+
+TestResult OutputDeviceTestCommon::checkRectangle(Bitmap& aBitmap)
+{
+    std::vector<Color> aExpected
+    {
+        constBackgroundColor, constBackgroundColor, constLineColor,
+        constBackgroundColor, constBackgroundColor, constLineColor, constBackgroundColor
+    };
+    return checkRectangles(aBitmap, aExpected);
+}
+
+TestResult OutputDeviceTestCommon::checkRectangleAA(Bitmap& aBitmap)
+{
+    std::vector<Color> aExpected
+    {
+        constBackgroundColor, constBackgroundColor, constLineColor,
+        constBackgroundColor, constBackgroundColor, constLineColor, constBackgroundColor
+    };
+    return checkRectangles(aBitmap, aExpected);
+}
+
+TestResult OutputDeviceTestCommon::checkFilledRectangle(Bitmap& aBitmap, bool useLineColor)
+{
+    std::vector<Color> aExpected
+    {
+        constBackgroundColor, constBackgroundColor,
+        useLineColor ? constLineColor : constFillColor,
+        constFillColor, constFillColor, constFillColor, constFillColor
+    };
+    return checkRectangles(aBitmap, aExpected);
+}
+
+TestResult OutputDeviceTestCommon::checkFilled(Bitmap& rBitmap, tools::Rectangle aRectangle, Color aExpectedColor)
+{
+    BitmapScopedWriteAccess pAccess(rBitmap);
+
+    TestResult aResult = TestResult::Passed;
+    int nNumberOfQuirks = 0;
+    int nNumberOfErrors = 0;
+
+    for (long y = aRectangle.Top(); y < aRectangle.Top() + aRectangle.GetHeight(); y++)
+    {
+        for (long x = aRectangle.Left(); x < aRectangle.Left() + aRectangle.GetWidth(); x++)
+        {
+            checkValue(pAccess, x, y, aExpectedColor, nNumberOfQuirks, nNumberOfErrors, false);
+        }
+    }
+
+    if (nNumberOfQuirks > 0)
+        aResult = TestResult::PassedWithQuirks;
+
+    if (nNumberOfErrors > 0)
+        aResult = TestResult::Failed;
+
+    return aResult;
+}
+
+TestResult OutputDeviceTestCommon::checkRectangles(Bitmap& aBitmap, std::vector<Color>& aExpectedColors)
+{
+    TestResult aReturnValue = TestResult::Passed;
+    for (size_t i = 0; i < aExpectedColors.size(); i++)
+    {
+        TestResult eResult = checkRect(aBitmap, i, aExpectedColors[i]);
+
+        if (eResult == TestResult::Failed)
+            aReturnValue = TestResult::Failed;
+        if (eResult == TestResult::PassedWithQuirks && aReturnValue != TestResult::Failed)
+            aReturnValue = TestResult::PassedWithQuirks;
+    }
+    return aReturnValue;
+}
+
+TestResult OutputDeviceTestCommon::checkRectangle(Bitmap& rBitmap, int aLayerNumber, Color aExpectedColor)
+{
+    return checkRect(rBitmap, aLayerNumber, aExpectedColor);
+}
+
+tools::Rectangle OutputDeviceTestCommon::alignToCenter(tools::Rectangle aRect1, tools::Rectangle aRect2)
+{
+    Point aPoint((aRect1.GetWidth()  / 2.0) - (aRect2.GetWidth()  / 2.0),
+                 (aRect1.GetHeight() / 2.0) - (aRect2.GetHeight() / 2.0));
+
+    return tools::Rectangle(aPoint, aRect2.GetSize());
+}
+
+TestResult OutputDeviceTestCommon::checkDiamond(Bitmap& rBitmap)
+{
+    return checkDiamondLine(rBitmap, 1, constLineColor);
+}
+
+void OutputDeviceTestCommon::createDiamondPoints(tools::Rectangle rRect, int nOffset,
+                                                 Point& rPoint1, Point& rPoint2,
+                                                 Point& rPoint3, Point& rPoint4)
+{
+    long midPointX = rRect.Left() + (rRect.Right()  - rRect.Left()) / 2.0;
+    long midPointY = rRect.Top()  + (rRect.Bottom() - rRect.Top())  / 2.0;
+
+    rPoint1 = Point(midPointX         , midPointY - nOffset);
+    rPoint2 = Point(midPointX + nOffset, midPointY         );
+    rPoint3 = Point(midPointX         , midPointY + nOffset);
+    rPoint4 = Point(midPointX - nOffset, midPointY         );
+}
+
+void OutputDeviceTestCommon::createHorizontalVerticalDiagonalLinePoints(tools::Rectangle rRect,
+                                Point& rHorizontalLinePoint1, Point& rHorizontalLinePoint2,
+                                Point& rVerticalLinePoint1, Point& rVerticalLinePoint2,
+                                Point& rDiagonalLinePoint1, Point& rDiagonalLinePoint2)
+{
+    rHorizontalLinePoint1 = Point(4, 1);
+    rHorizontalLinePoint2 = Point(rRect.Right() - 1, 1);
+
+    rVerticalLinePoint1 = Point(1, 4);
+    rVerticalLinePoint2 = Point(1,rRect.Bottom() - 1);
+
+    rDiagonalLinePoint1 = Point(1, 1);
+    rDiagonalLinePoint2 = Point(rRect.Right() - 1, rRect.Bottom() - 1);
+}
+
+TestResult OutputDeviceTestCommon::checkBezier(Bitmap& rBitmap)
+{
+    std::vector<Color> aExpected
+    {
+        constBackgroundColor, constBackgroundColor
+    };
+    // Check the bezier doesn't go over to the margins first
+    // TODO extend the check with more exact assert
+    return checkRectangles(rBitmap, aExpected);
+}
+
+} // end namespace vcl::test
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */