• Paul Eggert's avatar
    For SVG, 8192 is the new 256 · db9af103
    Paul Eggert authored
    Prefer librsvg for display of splash.svg
    When both librsvg and Imagemagick are available, Emacs should
    prefer librsvg to render SVG images.  However, Emacs was using
    Imagemagick to render its own splash.svg file because
    image-type-from-file-header returned nil for that file.
    * lisp/image.el (image-type-from-buffer)
    (image-type-from-file-header): Look at the first 8192 bytes of
    the image, not just the first 256.  For Emacs’s own splash.svg
    file, image-type-header-regexps needs to look at 939 bytes.
    8192 bytes is a reasonable number nowadays given typical file
    system design.
    * test/lisp/image-tests.el (image-tests--emacs-images-directory):
    New contant.
    (image-type-from-file-header-test): New test.
image.el 39.2 KB