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diff --git a/vcl/qa/cppunit/ScanlineToolsTest.cxx b/vcl/qa/cppunit/ScanlineToolsTest.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 <bitmap/ScanlineTools.hxx>
+
+namespace
+{
+class ScanlineToolsTest : public CppUnit::TestFixture
+{
+ void ScanlineTransformer_32_ARGB();
+ void ScanlineTransformer_24_BGR();
+ void ScanlineTransformer_8bit_Palette();
+ void ScanlineTransformer_4bit_Palette();
+ void ScanlineTransformer_1bit_Palette();
+
+ CPPUNIT_TEST_SUITE(ScanlineToolsTest);
+ CPPUNIT_TEST(ScanlineTransformer_32_ARGB);
+ CPPUNIT_TEST(ScanlineTransformer_24_BGR);
+ CPPUNIT_TEST(ScanlineTransformer_8bit_Palette);
+ CPPUNIT_TEST(ScanlineTransformer_4bit_Palette);
+ CPPUNIT_TEST(ScanlineTransformer_1bit_Palette);
+ CPPUNIT_TEST_SUITE_END();
+};
+
+void ScanlineToolsTest::ScanlineTransformer_32_ARGB()
+{
+ BitmapPalette aPalette;
+ std::unique_ptr<vcl::bitmap::ScanlineTransformer> pScanlineTransformer
+ = vcl::bitmap::getScanlineTransformer(32, aPalette);
+
+ std::vector<sal_uInt8> aScanLine(5 * 4, 0); // 5 * 4 BytesPerPixel
+ pScanlineTransformer->startLine(aScanLine.data());
+
+ std::vector<Color> aColors{
+ Color(ColorAlpha, 255, 10, 250, 120), Color(ColorAlpha, 205, 30, 230, 110),
+ Color(ColorAlpha, 155, 50, 210, 100), Color(ColorAlpha, 105, 70, 190, 90),
+ Color(ColorAlpha, 55, 90, 170, 80),
+ };
+
+ for (Color const& aColor : aColors)
+ {
+ pScanlineTransformer->writePixel(aColor);
+ }
+
+ std::vector<sal_uInt8> aExpectedBytes{ 255, 10, 250, 120, 205, 30, 230, 110, 155, 50,
+ 210, 100, 105, 70, 190, 90, 55, 90, 170, 80 };
+
+ for (size_t i = 0; i < aScanLine.size(); ++i)
+ {
+ CPPUNIT_ASSERT_EQUAL(int(aExpectedBytes[i]), int(aScanLine[i]));
+ }
+}
+
+void ScanlineToolsTest::ScanlineTransformer_24_BGR()
+{
+ BitmapPalette aPalette;
+ std::unique_ptr<vcl::bitmap::ScanlineTransformer> pScanlineTransformer
+ = vcl::bitmap::getScanlineTransformer(24, aPalette);
+
+ std::vector<sal_uInt8> aScanLine(5 * 3, 0); // 5 * 3 BytesPerPixel
+ pScanlineTransformer->startLine(aScanLine.data());
+
+ std::vector<Color> aColors{
+ Color(ColorTransparency, 0, 10, 250, 120), Color(ColorTransparency, 50, 30, 230, 110),
+ Color(ColorTransparency, 100, 50, 210, 100), Color(ColorTransparency, 150, 70, 190, 90),
+ Color(ColorTransparency, 200, 90, 170, 80),
+ };
+
+ for (Color const& aColor : aColors)
+ {
+ pScanlineTransformer->writePixel(aColor);
+ }
+
+ std::vector<sal_uInt8> aExpectedBytes{ 120, 250, 10, 110, 230, 30, 100, 210,
+ 50, 90, 190, 70, 80, 170, 90 };
+
+ for (size_t i = 0; i < aScanLine.size(); ++i)
+ {
+ CPPUNIT_ASSERT_EQUAL(int(aExpectedBytes[i]), int(aScanLine[i]));
+ }
+}
+
+void ScanlineToolsTest::ScanlineTransformer_8bit_Palette()
+{
+ std::vector<Color> aColors{
+ Color(ColorTransparency, 0, 10, 250, 120), Color(ColorTransparency, 50, 30, 230, 110),
+ Color(ColorTransparency, 100, 50, 210, 100), Color(ColorTransparency, 150, 70, 190, 90),
+ Color(ColorTransparency, 200, 90, 170, 80),
+ };
+
+ BitmapPalette aPalette(256);
+ for (size_t i = 0; i < aColors.size(); ++i)
+ aPalette[i] = aColors[i];
+
+ std::unique_ptr<vcl::bitmap::ScanlineTransformer> pScanlineTransformer
+ = vcl::bitmap::getScanlineTransformer(8, aPalette);
+
+ std::vector<sal_uInt8> aScanLine(5, 0); // 5 * 1 BytesPerPixel
+ pScanlineTransformer->startLine(aScanLine.data());
+
+ for (Color const& aColor : aColors)
+ {
+ pScanlineTransformer->writePixel(aColor);
+ }
+
+ std::vector<sal_uInt8> aExpectedBytes{ 0, 1, 2, 3, 4 };
+
+ for (size_t i = 0; i < aScanLine.size(); ++i)
+ {
+ CPPUNIT_ASSERT_EQUAL(int(aExpectedBytes[i]), int(aScanLine[i]));
+ }
+
+ pScanlineTransformer->startLine(aScanLine.data());
+
+ for (Color const& rColor : aColors)
+ {
+ Color aColor = pScanlineTransformer->readPixel();
+ CPPUNIT_ASSERT_EQUAL(rColor, aColor);
+ }
+}
+
+void ScanlineToolsTest::ScanlineTransformer_4bit_Palette()
+{
+ std::vector<Color> aColors{
+ Color(10, 250, 120), Color(30, 230, 110), Color(50, 210, 100),
+ Color(70, 190, 90), Color(90, 170, 80), Color(110, 150, 70),
+ };
+
+ BitmapPalette aPalette(16);
+ for (size_t i = 0; i < aColors.size(); ++i)
+ {
+ aPalette[i] = aColors[i];
+ }
+
+ std::unique_ptr<vcl::bitmap::ScanlineTransformer> pScanlineTransformer
+ = vcl::bitmap::getScanlineTransformer(4, aPalette);
+
+ std::vector<sal_uInt8> aScanLine(3, 0); // 6 * 0.5 BytesPerPixel
+ pScanlineTransformer->startLine(aScanLine.data());
+
+ for (Color const& aColor : aColors)
+ {
+ pScanlineTransformer->writePixel(aColor);
+ }
+
+ std::vector<sal_uInt8> aExpectedBytes{ 0x01, 0x23, 0x45 };
+
+ for (size_t i = 0; i < aScanLine.size(); ++i)
+ {
+ CPPUNIT_ASSERT_EQUAL(int(aExpectedBytes[i]), int(aScanLine[i]));
+ }
+
+ pScanlineTransformer->startLine(aScanLine.data());
+
+ for (Color const& rColor : aColors)
+ {
+ Color aColor = pScanlineTransformer->readPixel();
+ CPPUNIT_ASSERT_EQUAL(rColor, aColor);
+ }
+}
+
+void ScanlineToolsTest::ScanlineTransformer_1bit_Palette()
+{
+ std::vector<Color> aColors{
+ Color(10, 250, 120), Color(30, 230, 110), Color(50, 210, 100), Color(70, 190, 90),
+ Color(90, 170, 80), Color(110, 150, 70), Color(130, 130, 60), Color(150, 110, 50),
+ Color(170, 90, 40), Color(190, 70, 30), Color(210, 50, 20), Color(230, 30, 10),
+ Color(250, 10, 0),
+ };
+
+ BitmapPalette aPalette(2);
+ aPalette[0] = Color(10, 250, 120);
+ aPalette[1] = Color(110, 150, 70);
+
+ std::unique_ptr<vcl::bitmap::ScanlineTransformer> pScanlineTransformer
+ = vcl::bitmap::getScanlineTransformer(1, aPalette);
+
+ std::vector<sal_uInt8> aScanLine(2, 0); // 13 * 1/8 BytesPerPixel
+ pScanlineTransformer->startLine(aScanLine.data());
+
+ for (Color const& aColor : aColors)
+ {
+ pScanlineTransformer->writePixel(aColor);
+ }
+
+ std::vector<sal_uInt8> aExpectedBytes{
+ // We expect 3x index 0 and 10x index 1 => 000 111111111
+ 0x1f, // 0001 1111
+ 0xf8 // 1111 1000
+ };
+
+ for (size_t i = 0; i < aScanLine.size(); ++i)
+ {
+ CPPUNIT_ASSERT_EQUAL(int(aExpectedBytes[i]), int(aScanLine[i]));
+ }
+
+ pScanlineTransformer->startLine(aScanLine.data());
+
+ std::vector<Color> aColorsExpected{
+ Color(10, 250, 120), Color(10, 250, 120), Color(10, 250, 120), Color(110, 150, 70),
+ Color(110, 150, 70), Color(110, 150, 70), Color(110, 150, 70), Color(110, 150, 70),
+ Color(110, 150, 70), Color(110, 150, 70), Color(110, 150, 70), Color(110, 150, 70),
+ Color(110, 150, 70),
+ };
+
+ for (Color const& rColor : aColorsExpected)
+ {
+ Color aColor = pScanlineTransformer->readPixel();
+ CPPUNIT_ASSERT_EQUAL(rColor, aColor);
+ }
+}
+
+} // namespace
+
+CPPUNIT_TEST_SUITE_REGISTRATION(ScanlineToolsTest);
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-17 16:24:48 +0000