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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/.
*/
#include <cppunit/TestAssert.h>
#include <cppunit/TestFixture.h>
#include <cppunit/extensions/HelperMacros.h>
#include <vcl/bitmapex.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <bitmap/BitmapWriteAccess.hxx>
#include <svdata.hxx>
#include <salinst.hxx>
namespace
{
class BitmapExTest : public CppUnit::TestFixture
{
void testGetPixelColor24_8();
void testGetPixelColor32();
void testTransformBitmapEx();
CPPUNIT_TEST_SUITE(BitmapExTest);
CPPUNIT_TEST(testGetPixelColor24_8);
CPPUNIT_TEST(testGetPixelColor32);
CPPUNIT_TEST(testTransformBitmapEx);
CPPUNIT_TEST_SUITE_END();
};
void BitmapExTest::testGetPixelColor24_8()
{
Bitmap aBitmap(Size(3, 3), vcl::PixelFormat::N24_BPP);
{
BitmapScopedWriteAccess pWriteAccess(aBitmap);
pWriteAccess->Erase(Color(ColorTransparency, 0x00, 0x00, 0xFF, 0x00));
}
AlphaMask aMask(Size(3, 3));
{
AlphaScopedWriteAccess pWriteAccess(aMask);
pWriteAccess->Erase(Color(ColorTransparency, 0x00, 0xAA, 0xAA, 0xAA));
}
BitmapEx aBitmapEx(aBitmap, aMask);
CPPUNIT_ASSERT_EQUAL(Color(ColorTransparency, 0xAA, 0x00, 0xFF, 0x00),
aBitmapEx.GetPixelColor(0, 0));
}
void BitmapExTest::testGetPixelColor32()
{
// Check backend capabilities and return from the test successfully
// if the backend doesn't support 32-bit bitmap
auto pBackendCapabilities = ImplGetSVData()->mpDefInst->GetBackendCapabilities();
if (!pBackendCapabilities->mbSupportsBitmap32)
return;
Bitmap aBitmap(Size(3, 3), vcl::PixelFormat::N32_BPP);
{
BitmapScopedWriteAccess pWriteAccess(aBitmap);
pWriteAccess->Erase(Color(ColorTransparency, 0xAA, 0x00, 0xFF, 0x00));
}
BitmapEx aBitmapEx(aBitmap);
CPPUNIT_ASSERT_EQUAL(Color(ColorTransparency, 0xAA, 0x00, 0xFF, 0x00),
aBitmapEx.GetPixelColor(0, 0));
}
void BitmapExTest::testTransformBitmapEx()
{
Bitmap aBitmap(Size(16, 16), vcl::PixelFormat::N24_BPP);
{
BitmapScopedWriteAccess pWriteAccess(aBitmap);
pWriteAccess->Erase(COL_WHITE);
for (int i = 0; i < 8; ++i)
{
for (int j = 0; j < 8; ++j)
{
pWriteAccess->SetPixel(i, j, COL_BLACK);
}
}
}
BitmapEx aBitmapEx(aBitmap);
basegfx::B2DHomMatrix aMatrix;
aMatrix.rotate(M_PI / 2);
BitmapEx aTransformed = aBitmapEx.TransformBitmapEx(16, 16, aMatrix);
aBitmap = aTransformed.GetBitmap();
Bitmap::ScopedReadAccess pAccess(aBitmap);
for (int i = 0; i < 16; ++i)
{
for (int j = 0; j < 16; ++j)
{
BitmapColor aColor = pAccess->GetPixel(i, j);
std::stringstream ss;
ss << "Color is expected to be white or black, is '" << aColor.AsRGBHexString() << "'";
// Without the accompanying fix in place, this test would have failed with:
// - Expression: aColor == COL_WHITE || aColor == COL_BLACK
// - Color is expected to be white or black, is 'bfbfbf'
// i.e. smoothing introduced noise for a simple 90 deg rotation.
CPPUNIT_ASSERT_MESSAGE(ss.str(), aColor == COL_WHITE || aColor == COL_BLACK);
}
}
}
} // namespace
CPPUNIT_TEST_SUITE_REGISTRATION(BitmapExTest);
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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