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Miklos Vajna yazdı
Visible at e.g. in Calc: Format Cells/Borders/Line Styles. The problem was that first commit 2e99e4e1 (opengl: use MVP matrix in vertex shaders, pixel offsets, 2015-07-08) introduced the concept of pixel offsets, setting the value (implicitly) to 0 in OpenGLSalGraphicsImpl::DrawTrapezoid(), but using 0.5 in OpenGLSalGraphicsImpl::FlushLinesOrTriangles(). This is fine, but then later commit 2003076c (opengl: batch draw polypolygons, 2016-05-29) changed OpenGLSalGraphicsImpl::drawPolyPolygon() to use deferred drawing instead of DrawTrapezoid(), without doing any translation of the input polypolygon. This resulted in loss of those polygons when used in the above mentioned dialog, which has a listbox of bitmaps, where each line style preview is drawn on a virtual device with a height of 1px. So at the end the 1px offset meant the previews were simply missing. ('make CppunitTest_vcl_gen SAL_USE_VCLPLUGIN=gen SAL_FORCEGL=1' is needed on Linux to see the test failing without the fix.) Change-Id: Ia9f3d6e7cb38a43fe2f8a41746b538af68add43c Reviewed-on: https://gerrit.libreoffice.org/69920Reviewed-by: Miklos Vajna <vmiklos@collabora.com> Tested-by: Jenkins
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