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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /vcl/qa/cppunit/BitmapExTest.cxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vcl/qa/cppunit/BitmapExTest.cxx')
-rw-r--r--vcl/qa/cppunit/BitmapExTest.cxx114
1 files changed, 114 insertions, 0 deletions
diff --git a/vcl/qa/cppunit/BitmapExTest.cxx b/vcl/qa/cppunit/BitmapExTest.cxx
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+++ b/vcl/qa/cppunit/BitmapExTest.cxx
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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
+ if (!ImplGetSVData()->mpDefInst->supportsBitmap32())
+ 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: */