https://bugs.webkit.org/show_bug.cgi?id=219144 Reviewed by Carlos Garcia Campos. Source/WebCore: Test: compositing/filters/invert-transparent.html * platform/graphics/texmap/TextureMapperShaderProgram.cpp: Take alpha value as an argument. LayoutTests: * compositing/filters/invert-transparent-expected.html: Added. * compositing/filters/invert-transparent.html: Added. Canonical link: https://commits.webkit.org/231780@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@270040 268f45cc-cd09-0410-ab3c-d52691b4dbfc