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Evgeny Zemtsov f2e4808337 Improve PGTK Skia GL presentation
* src/pgtkterm.c (pgtk_gl_note_full_damage): New function.
(pgtk_gl_note_damage, pgtk_gl_queue_draw): New functions.
(pgtk_frame_up_to_date): Queue damaged Skia GL regions.
(pgtk_buffer_flipping_unblocked_hook): Likewise.
(pgtk_skia_frame_needs_texture_alpha): New function.
(pgtk_setup_gl_framebuffer_storage): New function.
(pgtk_check_gl_framebuffer_complete): New function.
(pgtk_setup_gl_framebuffer): Prefer opaque RGB textures.
(pgtk_create_skia_gl_surface): Fall back to RGBA when needed.
(Fpgtk_skia_gl_texture_alpha_size): New function.
(Fpgtk_skia_gl_presentation_stats): New function.
* src/pgtkterm.h (struct pgtk_output): Add Skia GL alpha,
damage, and presentation counters.
* src/skia/emacs_skia.cpp (emacs_skia_surface_create_gl):
Accept whether the GL target has alpha.
* src/skia/emacs_skia.h: Update declaration.
2026年06月08日 08:58:32 +02:00
admin ; update README for windows binaries 2026年06月07日 21:09:01 -05:00
build-aux * build-aux/git-hooks/commit-msg: Replace Markdown-style quotation. 2026年05月23日 17:25:07 +01:00
cross ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
doc Read a key sequence instead of a single key in 'map-y-or-n-p' 2026年06月07日 21:56:47 +03:00
etc Add Skia support to PGTK frames 2026年06月08日 08:58:32 +02:00
exec Bump Emacs version to 31.0.90 2026年06月05日 10:42:43 +01:00
java Bump Emacs version to 31.0.90 2026年06月05日 10:42:43 +01:00
leim ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
lib Update from Gnulib by running admin/merge-gnulib 2026年03月01日 10:41:54 -08:00
lib-src emacsclient quote_argument is void 2026年05月26日 19:36:00 -07:00
lisp Ensure Tramp backward compatibility 2026年06月08日 08:45:40 +02:00
lwlib butttonTrans need not be extern 2026年02月08日 17:02:55 -08:00
m4 Update from Gnulib by running admin/merge-gnulib 2026年03月01日 10:41:54 -08:00
modules ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
msdos Bump Emacs version to 31.0.90 2026年06月05日 10:42:43 +01:00
nextstep ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
nt Bump Emacs version to 31.0.90 2026年06月05日 10:42:43 +01:00
oldXMenu ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
src Improve PGTK Skia GL presentation 2026年06月08日 08:58:32 +02:00
test Read a key sequence instead of a single key in 'map-y-or-n-p' 2026年06月07日 21:56:47 +03:00
.clang-format ; Configure ObjC for clang-format 2023年10月06日 16:52:19 +02:00
.clangd Tweak .clangd to work with gcc-compiled Emacs (bug#78367) 2025年05月11日 11:14:32 +01:00
.dir-locals.el Review some attribute macro usage 2026年03月14日 15:08:15 +01:00
.gitattributes Merge branch 'main' into icalendar 2026年02月08日 16:05:31 -05:00
.gitignore ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
.gitlab-ci.yml ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
.mailmap ; * .mailmap: Add email alias 2026年01月18日 21:59:38 +01:00
autogen.sh ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
BUGS * BUGS: Minor copy edit. 2024年09月21日 13:29:36 +02:00
ChangeLog.1 ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
ChangeLog.2 ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
ChangeLog.3 ; Update exported ChangeLog files and etc/AUTHORS 2026年05月07日 20:08:43 +01:00
ChangeLog.4 ; Spelling fixes. 2026年04月29日 22:45:51 -07:00
ChangeLog.5 ; Update exported ChangeLog files and etc/AUTHORS 2026年06月05日 10:41:22 +01:00
ChangeLog.android ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
config.bat ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
configure.ac Add Skia support to PGTK frames 2026年06月08日 08:58:32 +02:00
CONTRIBUTE ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
COPYING
GNUmakefile ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
INSTALL Add Skia support to PGTK frames 2026年06月08日 08:58:32 +02:00
INSTALL.REPO ; Add 2026 to copyright years. 2026年01月01日 12:54:34 +00:00
make-dist ; Avoid rebuilding Emacs Lisp Intro when building release tarball 2026年06月05日 14:42:58 +03:00
Makefile.in ; Update exported ChangeLog files and etc/AUTHORS 2026年05月07日 20:08:43 +01:00
README Bump Emacs version to 31.0.90 2026年06月05日 10:42:43 +01:00

Copyright (C) 2001-2026 Free Software Foundation, Inc.
See the end of the file for license conditions.
This directory tree holds version 31.0.90 of GNU Emacs, the extensible,
customizable, self-documenting real-time display editor.
The file INSTALL in this directory says how to build and install GNU
Emacs on various systems, once you have unpacked or checked out the
entire Emacs file tree.
See the file etc/NEWS for information on new features and other
user-visible changes in recent versions of Emacs.
The file etc/PROBLEMS contains information on many common problems that
occur in building, installing and running Emacs.
The file CONTRIBUTE contains information on contributing to Emacs as a
developer.
You may encounter bugs in this release. If you do, please report
them; your bug reports are valuable contributions to the FSF, since
they allow us to notice and fix problems on machines we don't have, or
in code we don't use often. Please send bug reports to the mailing
list bug-gnu-emacs@gnu.org. If possible, use M-x report-emacs-bug.
See the "Bugs" section of the Emacs manual for more information on how
to report bugs. (The file 'BUGS' in this directory explains how you
can find and read that section using the Info files that come with
Emacs.) For a list of mailing lists related to Emacs, see
<https://savannah.gnu.org/mail/?group=emacs>. For the complete
list of GNU mailing lists, see <https://lists.gnu.org/>.
The 'etc' subdirectory contains several other files, named in capital
letters, which you might consider looking at when installing GNU
Emacs.
The file 'configure' is a shell script to acclimate Emacs to the
oddities of your processor and operating system. It creates the file
'Makefile' (a script for the 'make' program), which automates the
process of building and installing Emacs. See INSTALL for more
detailed information.
The file 'configure.ac' is the input used by the autoconf program to
construct the 'configure' script.
The shell script 'autogen.sh' generates 'configure' and other files by
running Autoconf (which in turn uses GNU m4), and configures files in
the .git subdirectory if you are using Git. If you want to use it,
you will need to install recent versions of these build tools. This
should be needed only if you edit files like 'configure.ac' that
specify Emacs's autobuild procedure.
The file 'Makefile.in' is a template used by 'configure' to create
'Makefile'.
The file 'make-dist' is a shell script to build a distribution tar
file from the current Emacs tree, containing only those files
appropriate for distribution. If you make extensive changes to Emacs,
this script will help you distribute your version to others.
There are several subdirectories:
'src' holds the C code for Emacs (the Emacs Lisp interpreter and
 its primitives, the redisplay code, and some basic editing
 functions).
'lisp' holds the Emacs Lisp code for Emacs (most everything else).
'leim' holds the original source files for the generated files
 in lisp/leim. These form the library of Emacs input methods,
 required to type international characters that can't be
 directly produced by your keyboard.
'lib' holds source code for libraries used by Emacs and its utilities
'lib-src' holds the source code for some utility programs for use by or
 with Emacs, like movemail and etags.
'lwlib' holds the sources of the Lucid Widget Library used on X.
'oldXMenu' source files from X11R2 XMenu library, used in non-toolkit builds.
'etc' holds miscellaneous architecture-independent data files Emacs
 uses, like the tutorial text and tool bar images.
 The contents of the 'lisp', 'leim', 'info', and 'doc'
 subdirectories are architecture-independent too.
'info' holds the Info documentation tree for Emacs.
'doc/emacs' holds the source code for the Emacs Manual. If you modify the
 manual sources, you will need the 'makeinfo' program to produce
 an updated manual. 'makeinfo' is part of the GNU Texinfo
 package; you need a suitably recent version of Texinfo.
'doc/lispref' holds the source code for the Emacs Lisp reference manual.
'doc/lispintro' holds the source code for the Introduction to Programming
 in Emacs Lisp manual.
'msdos' holds configuration files for compiling Emacs under MS-DOS.
'nextstep' holds instructions and some other files for compiling the
 Nextstep port of Emacs, for GNUstep and macOS Cocoa.
'nt' holds code and documentation for building Emacs on MS-Windows.
'test' holds tests for various aspects of Emacs's functionality.
'modules' holds the modhelp.py helper script.
'admin' holds files used by Emacs developers, and Unicode data files.
'build-aux' holds auxiliary files used during the build.
'm4' holds Autoconf macros used for generating the configure script.
'java'	 holds the Java code for the Emacs port to Android.
'cross'	 holds Makefiles and an additional copy of gnulib used to build
	 Emacs for Android devices.
'exec'	 holds the source code to several helper executables used to run
	 user-installed programs on Android.
 Building Emacs on non-Posix platforms requires tools that aren't part
of the standard distribution of the OS. The platform-specific README
files and installation instructions should list the required tools.

NOTE ON COPYRIGHT YEARS
In copyright notices where the copyright holder is the Free Software
Foundation, then where a range of years appears, this is an inclusive
range that applies to every year in the range. For example: 2005-2008
represents the years 2005, 2006, 2007, and 2008.

This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.