forked from amazingfate/loongoffice
68bc6a5dd6
Bit count for the image is a numeric value (sal_uInt16) but only a handful of values make sense - namely 1,4,8,24 and 32. This replaces the numeric value with an enum, which only accepts those values and checks the correct values are used at compile time. Change-Id: I0fc137c62bce3b0d021f05019a1648da628521bc Reviewed-on: https://gerrit.libreoffice.org/c/core/+/112408 Tested-by: Jenkins Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
116 lines
3.6 KiB
C++
116 lines
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include <cppunit/TestAssert.h>
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#include <cppunit/TestFixture.h>
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#include <cppunit/extensions/HelperMacros.h>
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#include <vcl/bitmapex.hxx>
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#include <bitmap/BitmapWriteAccess.hxx>
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#include <svdata.hxx>
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#include <salinst.hxx>
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namespace
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{
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class BitmapExTest : public CppUnit::TestFixture
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{
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void testGetPixelColor24_8();
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void testGetPixelColor32();
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void testTransformBitmapEx();
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CPPUNIT_TEST_SUITE(BitmapExTest);
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CPPUNIT_TEST(testGetPixelColor24_8);
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CPPUNIT_TEST(testGetPixelColor32);
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CPPUNIT_TEST(testTransformBitmapEx);
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CPPUNIT_TEST_SUITE_END();
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};
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void BitmapExTest::testGetPixelColor24_8()
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{
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Bitmap aBitmap(Size(3, 3), vcl::PixelFormat::N24_BPP);
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{
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BitmapScopedWriteAccess pWriteAccess(aBitmap);
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pWriteAccess->Erase(Color(ColorTransparency, 0x00, 0x00, 0xFF, 0x00));
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}
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AlphaMask aMask(Size(3, 3));
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{
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AlphaScopedWriteAccess pWriteAccess(aMask);
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pWriteAccess->Erase(Color(ColorTransparency, 0x00, 0xAA, 0xAA, 0xAA));
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}
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BitmapEx aBitmapEx(aBitmap, aMask);
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CPPUNIT_ASSERT_EQUAL(Color(ColorTransparency, 0xAA, 0x00, 0xFF, 0x00),
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aBitmapEx.GetPixelColor(0, 0));
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}
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void BitmapExTest::testGetPixelColor32()
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{
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// Check backend capabilities and return from the test successfully
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// if the backend doesn't support 32-bit bitmap
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auto pBackendCapabilities = ImplGetSVData()->mpDefInst->GetBackendCapabilities();
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if (!pBackendCapabilities->mbSupportsBitmap32)
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return;
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Bitmap aBitmap(Size(3, 3), vcl::PixelFormat::N32_BPP);
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{
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BitmapScopedWriteAccess pWriteAccess(aBitmap);
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pWriteAccess->Erase(Color(ColorTransparency, 0xAA, 0x00, 0xFF, 0x00));
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}
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BitmapEx aBitmapEx(aBitmap);
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CPPUNIT_ASSERT_EQUAL(Color(ColorTransparency, 0xAA, 0x00, 0xFF, 0x00),
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aBitmapEx.GetPixelColor(0, 0));
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}
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void BitmapExTest::testTransformBitmapEx()
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{
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Bitmap aBitmap(Size(16, 16), vcl::PixelFormat::N24_BPP);
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{
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BitmapScopedWriteAccess pWriteAccess(aBitmap);
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pWriteAccess->Erase(COL_WHITE);
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for (int i = 0; i < 8; ++i)
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{
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for (int j = 0; j < 8; ++j)
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{
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pWriteAccess->SetPixel(i, j, COL_BLACK);
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}
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}
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}
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BitmapEx aBitmapEx(aBitmap);
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basegfx::B2DHomMatrix aMatrix;
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aMatrix.rotate(M_PI / 2);
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BitmapEx aTransformed = aBitmapEx.TransformBitmapEx(16, 16, aMatrix);
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aBitmap = aTransformed.GetBitmap();
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Bitmap::ScopedReadAccess pAccess(aBitmap);
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for (int i = 0; i < 16; ++i)
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{
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for (int j = 0; j < 16; ++j)
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{
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BitmapColor aColor = pAccess->GetPixel(i, j);
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std::stringstream ss;
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ss << "Color is expected to be white or black, is '" << aColor.AsRGBHexString() << "'";
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// Without the accompanying fix in place, this test would have failed with:
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// - Expression: aColor == COL_WHITE || aColor == COL_BLACK
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// - Color is expected to be white or black, is 'bfbfbf'
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// i.e. smoothing introduced noise for a simple 90 deg rotation.
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CPPUNIT_ASSERT_MESSAGE(ss.str(), aColor == COL_WHITE || aColor == COL_BLACK);
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}
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}
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}
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} // namespace
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CPPUNIT_TEST_SUITE_REGISTRATION(BitmapExTest);
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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