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| author | Stefan Kangas <stefan@marxist.se> | 2021-10-22 10:59:01 +0200 |
|---|---|---|
| committer | Stefan Kangas <stefan@marxist.se> | 2021-10-22 10:59:01 +0200 |
| commit | bc2a5c112796ea9f072984b471f980e4321263b3 (patch) | |
| tree | 04c5f5effd7f1a75be9e457deed9352da43be1ef /nt | |
| parent | 938f10c601e87154b697cdb73b44e0d44851303b (diff) | |
| download | emacs-bc2a5c112796ea9f072984b471f980e4321263b3.tar.gz | |
Add WebP image format support (Bug#51296)
* configure.ac (--with-webp): New option.
(HAVE_WEBP): New variable.
(emacs_config_features): Add webp.
* src/image.c (enum webp_keyword_index) [HAVE_WEBP]: New enum.
(webp_format) [HAVE_WEBP]: New variable.
(webp_image_p, init_webp_functions, webp_load) [HAVE_WEBP]: New
functions for WebP support.
(image_types) [HAVE_WEBP]: Define WebP format.
(syms_of_image) <Qwebp> [HAVE_WEBP]: New DEFSYM. Add image type Qwebp.
* src/Makefile.in (LIBIMAGE): Add WEBP_LIBS.
* lisp/files.el (auto-mode-alist):
* lisp/image-file.el (image-file-name-extensions):
* lisp/image.el (image-type-header-regexps)
(image-type-file-name-regexps, image-type-auto-detectable): Add WebP
support.
* lisp/term/w32-win.el (dynamic-library-alist): Add the libwebp DLL.
* INSTALL:
* admin/CPP-DEFINES:
* doc/lispref/display.texi (Image Formats, Other Image Types):
* nt/INSTALL: Document WebP support.
* test/lisp/image-tests.el (image-find-image)
(image-type-from-file-name): Expand tests.
* test/src/image-tests.el (image-tests--files): Add WebP.
(image-tests-image-size/webp, image-tests-image-mask-p/webp)
(image-tests-image-metadata/webp): New tests.
* test/data/image/black.webp: New file.
Diffstat (limited to 'nt')
| -rw-r--r-- | nt/INSTALL | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/nt/INSTALL b/nt/INSTALL index 9f543151a94..a39057c66c6 100644 --- a/nt/INSTALL +++ b/nt/INSTALL @@ -488,6 +488,7 @@ build will run on Windows 9X and newer systems). Does Emacs use a gif library? yes Does Emacs use a png library? yes Does Emacs use -lrsvg-2? yes + Does Emacs use -lwebp? yes Does Emacs use cairo? no Does Emacs use -llcms2? yes Does Emacs use imagemagick? no @@ -597,8 +598,8 @@ build will run on Windows 9X and newer systems). * Optional image library support In addition to its "native" image formats (pbm and xbm), Emacs can - handle other image types: xpm, tiff, gif, png, jpeg and experimental - support for svg. + handle other image types: xpm, tiff, gif, png, jpeg, webp and + experimental support for svg. To build Emacs with support for them, the corresponding headers must be in the include path and libraries should be where the linker @@ -736,6 +737,10 @@ build will run on Windows 9X and newer systems). without it by specifying the --without-rsvg switch to the configure script. + For WebP images you will need libwebp: + + https://developers.google.com/speed/webp/ + Binaries for the other image libraries can be found on the ezwinports site or at the GnuWin32 project (the latter are generally very old, so not recommended). Note specifically that, due to some |