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| author | Chris Sherlock <chris.sherlock79@gmail.com> | 2024-09-14 01:04:55 +1000 |
|---|---|---|
| committer | Tomaž Vajngerl <quikee@gmail.com> | 2024-09-18 08:06:33 +0200 |
| commit | 05c01410f3c0fcb791f60b19ce2085beee1dabe0 (patch) | |
| tree | 626807281325dc1fa9fc2f2f98c91f75a1c2f6f9 /vcl | |
| parent | 393b1a5de4e113336ca5fa87cc77555679fa8e03 (diff) | |
vcl: test BitmapAlphaClampFilter
Change-Id: Ie44884a3010cd26b057bac593059a4bd0a3aabc8
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/173345
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
Diffstat (limited to 'vcl')
| -rw-r--r-- | vcl/qa/cppunit/BitmapFilterTest.cxx | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/vcl/qa/cppunit/BitmapFilterTest.cxx b/vcl/qa/cppunit/BitmapFilterTest.cxx index e492b963f48d..099720a1569d 100644 --- a/vcl/qa/cppunit/BitmapFilterTest.cxx +++ b/vcl/qa/cppunit/BitmapFilterTest.cxx @@ -15,6 +15,7 @@ #include <tools/stream.hxx> #include <vcl/graphicfilter.hxx> +#include <vcl/BitmapAlphaClampFilter.hxx> #include <vcl/BitmapArithmeticBlendFilter.hxx> #include <vcl/BitmapDarkenBlendFilter.hxx> #include <vcl/BitmapLightenBlendFilter.hxx> @@ -41,6 +42,7 @@ public: { } + void testClampAlpha(); void testBlurCorrectness(); void testBasicMorphology(); void testPerformance(); @@ -53,6 +55,7 @@ public: void testArithmeticBlendFilter(); CPPUNIT_TEST_SUITE(BitmapFilterTest); + CPPUNIT_TEST(testClampAlpha); CPPUNIT_TEST(testBlurCorrectness); CPPUNIT_TEST(testBasicMorphology); CPPUNIT_TEST(testPerformance); @@ -91,6 +94,22 @@ private: } }; +void BitmapFilterTest::testClampAlpha() +{ + // Setup test bitmap + Size aSize(1, 1); + Bitmap aBitmap24Bit(aSize, vcl::PixelFormat::N24_BPP); + + { + BitmapScopedWriteAccess aWriteAccess(aBitmap24Bit); + aWriteAccess->Erase(COL_RED); + } + + BitmapEx aBitmapEx24Bit(aBitmap24Bit); + BitmapFilter::Filter(aBitmapEx24Bit, BitmapAlphaClampFilter(0x7F)); + CPPUNIT_ASSERT_EQUAL(static_cast<sal_uInt8>(0xFF), aBitmapEx24Bit.GetAlpha(0, 0)); +} + void BitmapFilterTest::testBlurCorrectness() { // Setup test bitmap |