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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* 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 .
*/
#include <cppunit/TestAssert.h>
#include <cppunit/TestFixture.h>
#include <cppunit/extensions/HelperMacros.h>
#include <basegfx/vector/b2isize.hxx>
#include <basegfx/point/b2ipoint.hxx>
#include <basebmp/color.hxx>
#include <basebmp/scanlineformats.hxx>
#include <basebmp/bitmapdevice.hxx>
#include "tools.hxx"
using namespace ::basebmp;
namespace
{
class LineTest : public CppUnit::TestFixture
{
private:
BitmapDeviceSharedPtr mpDevice1bpp;
BitmapDeviceSharedPtr mpDevice32bpp;
void implTestBasicDiagonalLines(const BitmapDeviceSharedPtr& rDevice)
{
rDevice->clear(Color(0));
const basegfx::B2IPoint aPt1(1,1);
const basegfx::B2IPoint aPt2(9,9);
const Color aCol(0xFFFFFFFF);
rDevice->drawLine( aPt1, aPt2, aCol, DrawMode::Paint );
CPPUNIT_ASSERT_MESSAGE("first pixel set",
rDevice->getPixel(aPt1) == aCol);
CPPUNIT_ASSERT_MESSAGE("last pixel set",
rDevice->getPixel(aPt2) == aCol);
const basegfx::B2IPoint aPt3(0,0);
CPPUNIT_ASSERT_MESSAGE("topmost pixel not set",
rDevice->getPixel(aPt3) != aCol);
const basegfx::B2IPoint aPt4(10,10);
CPPUNIT_ASSERT_MESSAGE("bottommost pixel not set",
rDevice->getPixel(aPt4) != aCol);
CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 9",
countPixel( rDevice, aCol ) == 9);
rDevice->drawLine( aPt2, aPt1, aCol, DrawMode::Paint );
CPPUNIT_ASSERT_MESSAGE("number of rendered pixel after "
"reversed paint is not 9",
countPixel( rDevice, aCol ) == 9);
}
void implTestBasicHorizontalLines(const BitmapDeviceSharedPtr& rDevice)
{
rDevice->clear(Color(0));
const basegfx::B2IPoint aPt1(10,10);
const basegfx::B2IPoint aPt2(0,10);
const Color aCol(0xFFFFFFFF);
rDevice->drawLine( aPt1, aPt2, aCol, DrawMode::Paint );
CPPUNIT_ASSERT_MESSAGE("first pixel set",
rDevice->getPixel(aPt1) == aCol);
CPPUNIT_ASSERT_MESSAGE("last pixel set",
rDevice->getPixel(aPt2) == aCol);
CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 11",
countPixel( rDevice, aCol ) == 11);
rDevice->clear(Color(0));
rDevice->drawLine( aPt2, aPt1, aCol, DrawMode::Paint );
CPPUNIT_ASSERT_MESSAGE("first pixel set",
rDevice->getPixel(aPt1) == aCol);
CPPUNIT_ASSERT_MESSAGE("last pixel set",
rDevice->getPixel(aPt2) == aCol);
CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 11",
countPixel( rDevice, aCol ) == 11);
}
void implTestBasicVerticalLines(const BitmapDeviceSharedPtr& rDevice)
{
rDevice->clear(Color(0));
const basegfx::B2IPoint aPt1(1,1);
const basegfx::B2IPoint aPt2(1,9);
const Color aCol(0xFFFFFFFF);
rDevice->drawLine( aPt1, aPt2, aCol, DrawMode::Paint );
CPPUNIT_ASSERT_MESSAGE("first pixel set",
rDevice->getPixel(aPt1) == aCol);
CPPUNIT_ASSERT_MESSAGE("last pixel set",
rDevice->getPixel(aPt2) == aCol);
const basegfx::B2IPoint aPt3(0,0);
CPPUNIT_ASSERT_MESSAGE("topmost pixel not set",
rDevice->getPixel(aPt3) != aCol);
const basegfx::B2IPoint aPt4(0,10);
CPPUNIT_ASSERT_MESSAGE("bottommost pixel not set",
rDevice->getPixel(aPt4) != aCol);
CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 9",
countPixel( rDevice, aCol ) == 9);
}
// test pixel rounding (should always tend towards start point of
// the line)
void implTestTieBreaking(const BitmapDeviceSharedPtr& rDevice)
{
rDevice->clear(Color(0));
const basegfx::B2IPoint aPt1(1,1);
const basegfx::B2IPoint aPt2(3,2);
const Color aCol(0xFFFFFFFF);
rDevice->drawLine( aPt1, aPt2, aCol, DrawMode::Paint );
CPPUNIT_ASSERT_MESSAGE("first pixel set",
rDevice->getPixel(aPt1) == aCol);
CPPUNIT_ASSERT_MESSAGE("second pixel set",
rDevice->getPixel(basegfx::B2IPoint(2,1)) == aCol);
CPPUNIT_ASSERT_MESSAGE("last pixel set",
rDevice->getPixel(aPt2) == aCol);
CPPUNIT_ASSERT_MESSAGE("number of rendered pixel after "
"reversed paint is not 3",
countPixel( rDevice, aCol ) == 3);
rDevice->drawLine( aPt2, aPt1, aCol, DrawMode::Paint );
CPPUNIT_ASSERT_MESSAGE("alternate second pixel set",
rDevice->getPixel(basegfx::B2IPoint(2,2)) == aCol);
CPPUNIT_ASSERT_MESSAGE("number of rendered pixel after "
"reversed paint is not 4",
countPixel( rDevice, aCol ) == 4);
}
public:
void setUp() override
{
const basegfx::B2ISize aSize(11,11);
mpDevice1bpp = createBitmapDevice( aSize,
true,
Format::OneBitMsbPal,
basebmp::getBitmapDeviceStrideForWidth(Format::OneBitMsbPal, aSize.getX()) );
mpDevice32bpp = createBitmapDevice( aSize,
true,
Format::ThirtyTwoBitTcMaskBGRA,
basebmp::getBitmapDeviceStrideForWidth(Format::ThirtyTwoBitTcMaskBGRA, aSize.getX()) );
}
void testCornerCases()
{
const basegfx::B2ISize aSize(1,1);
BitmapDeviceSharedPtr pDevice = createBitmapDevice(
aSize,
true,
Format::OneBitMsbPal,
basebmp::getBitmapDeviceStrideForWidth(Format::OneBitMsbPal, aSize.getX()) );
const basegfx::B2IPoint aPt1(0,0);
const basegfx::B2IPoint aPt2(10,10);
CPPUNIT_ASSERT_MESSAGE("only pixel cleared",
pDevice->getPixelData(aPt1) == 0);
const Color aCol(0xFFFFFFFF);
pDevice->drawLine( aPt1, aPt2, aCol, DrawMode::Paint );
CPPUNIT_ASSERT_MESSAGE("only pixel set",
pDevice->getPixelData(aPt1) == 1);
const basegfx::B2ISize aSize2(1,0);
pDevice = createBitmapDevice(
aSize2,
true,
Format::OneBitMsbPal,
basebmp::getBitmapDeviceStrideForWidth(Format::OneBitMsbPal, aSize.getX()));
CPPUNIT_ASSERT_MESSAGE("only pixel cleared",
pDevice->getPixelData(aPt1) == 0);
pDevice->drawLine( aPt1, aPt2, aCol, DrawMode::Paint );
CPPUNIT_ASSERT_MESSAGE("only pixel still cleared",
pDevice->getPixelData(aPt1) == 0);
}
void testBasicDiagonalLines()
{
implTestBasicDiagonalLines( mpDevice1bpp );
implTestBasicDiagonalLines( mpDevice32bpp );
}
void testBasicHorizontalLines()
{
implTestBasicHorizontalLines( mpDevice1bpp );
implTestBasicHorizontalLines( mpDevice32bpp );
}
void testBasicVerticalLines()
{
implTestBasicVerticalLines( mpDevice1bpp );
implTestBasicVerticalLines( mpDevice32bpp );
}
// test pixel rounding (should always tend towards start point of
// the line)
void testTieBreaking()
{
implTestTieBreaking( mpDevice1bpp );
implTestTieBreaking( mpDevice32bpp );
}
// Change the following lines only, if you add, remove or rename
// member functions of the current class,
// because these macros are need by auto register mechanism.
CPPUNIT_TEST_SUITE(LineTest);
CPPUNIT_TEST(testCornerCases);
CPPUNIT_TEST(testBasicDiagonalLines);
CPPUNIT_TEST(testBasicHorizontalLines);
CPPUNIT_TEST(testBasicVerticalLines);
CPPUNIT_TEST(testTieBreaking);
CPPUNIT_TEST_SUITE_END();
};
CPPUNIT_TEST_SUITE_REGISTRATION(LineTest);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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