<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [patch] add support for subpixel rendering support for cairo backend" href="https://bugs.freedesktop.org/show_bug.cgi?id=95485#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [patch] add support for subpixel rendering support for cairo backend" href="https://bugs.freedesktop.org/show_bug.cgi?id=95485">bug 95485</a> from <a class="email" href="mailto:broken.zhou@gmail.com" title="Yichao Zhou <broken.zhou@gmail.com>"> Yichao Zhou</a> <pre>Thanks for the review. For the second point, poppler calls cairo_user_font_face_set_render_glyph_func to define the render function for type3 font, as the type3 font is actually a PS file and it is not supported by freetype. It seems that cairo uses other blend mode other than CAIRO_OPERATOR_OVER to create a cairo_t as the canvas for input of user defined render function. So if we enable subpixel rendering, the result will be incorrect. I am not 100% sure on this as it requires to understand how the internal of cairo's custom render function works. I tried to workaround this problem but I did not succeed. I am not sure how to create a test in this case. Any advice?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>