add freeglut wrap

I created this wrap-file for the mesa-demos repository, and I figured
others might be interested in this.

A few details:

1. We provide both "freeglut" and "glut" dependencies. This is because
   FreeGLUT has it's own API that is an extension of the normal GLUT API.
2. We do a few things differently from the upstream CMake build system,
   to make things a bit more straight-forward to use.
   - We disable the FREEGLUT_LIB_PRAGMAS option unconditionally. We don't
     need it, as meson is perfectly capable to forward the correct linker
     args without it.
   - We don't try to match the libnames. This is really only needed for
     the FREEGLUT_LIB_PRAGMAS option, which we already disable.
   - No GLES support. I have some untested patches for this, but would
     prefer to land GL only for now.
   - No Blackberry OS support. There's no first-class support in Meson
     for this, and it seems... needlessly exotic anyway.
   - No Android support. Possible to add, but depends on GLES support. I
     don't do Android development, so I think it'd be better if someone
     who cares about Android *and* GLUT to work on this. We also don't
     have Android build-testing on CI, it seems.

ci_config.json

@@ -139,6 +139,20 @@
   "fontconfig": {
     "fatal_warnings": false
   },
+  "freeglut": {
+    "brew_packages": [
+      "libx11",
+      "libxi",
+      "libxrandr",
+      "libxxf86vm",
+      "mesa"
+    ],
+    "debian_packages": [
+      "libgl-dev",
+      "libglu1-mesa-dev",
+      "libxi-dev"
+    ]
+  },
   "fuse": {
     "_comment": "- relies on Linux and BSD specific APIs",
     "build_on": {

releases.json

@@ -655,6 +655,15 @@
       "2.14.2-1"
     ]
   },
+  "freeglut": {
+    "dependency_names": [
+      "freeglut",
+      "glut"
+    ],
+    "versions": [
+      "3.4.0-1"
+    ]
+  },
   "freetype2": {
     "dependency_names": [
       "freetype2",

subprojects/freeglut.wrap

@@ -0,0 +1,10 @@
+[wrap-file]
+directory = freeglut-3.4.0
+source_url = http://downloads.sourceforge.net/freeglut/3.4.0/freeglut-3.4.0.tar.gz
+source_filename = freeglut-3.4.0.tar.gz
+source_hash = 3c0bcb915d9b180a97edaebd011b7a1de54583a838644dcd42bb0ea0c6f3eaec
+patch_directory = freeglut
+
+[provide]
+freeglut = freeglut_dep
+glut = freeglut_dep

subprojects/packagefiles/freeglut/meson.build

@@ -0,0 +1,254 @@
+# Copyright © 2023 Erik Faye-Lund
+
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+project(
+  'freeglut',
+  'c',
+  version: '3.4.0',
+  license: 'MIT',
+  meson_version: '>= 0.58.0',
+)
+
+cc = meson.get_compiler('c')
+host_system = host_machine.system()
+version = meson.project_version().split('.')
+
+config = configuration_data()
+config.set('VERSION_MAJOR', version[0])
+config.set('VERSION_MINOR', version[1])
+config.set('VERSION_PATCH', version[2])
+
+freeglut_sources = files(
+  'src/fg_callbacks.c',
+  'src/fg_cursor.c',
+  'src/fg_display.c',
+  'src/fg_ext.c',
+  'src/fg_font_data.c',
+  'src/fg_gamemode.c',
+  'src/fg_geometry.c',
+  'src/fg_gl2.c',
+  'src/fg_gl2.h',
+  'src/fg_init.c',
+  'src/fg_init.h',
+  'src/fg_internal.h',
+  'src/fg_callback_macros.h',
+  'src/fg_input_devices.c',
+  'src/fg_joystick.c',
+  'src/fg_main.c',
+  'src/fg_misc.c',
+  'src/fg_overlay.c',
+  'src/fg_spaceball.c',
+  'src/fg_state.c',
+  'src/fg_stroke_mono_roman.c',
+  'src/fg_stroke_roman.c',
+  'src/fg_structure.c',
+  'src/fg_teapot.c',
+  'src/fg_teapot_data.h',
+  'src/fg_videoresize.c',
+  'src/fg_window.c',
+  'src/fg_font.c',
+  'src/fg_menu.c',
+)
+
+freeglut_deps = [
+  cc.find_library('m', required: false),
+  dependency('gl')
+]
+
+if host_system == 'windows'
+  if cc.get_id() == 'msvc'
+    add_project_arguments('/source-charset:windows-1252', language: 'c')
+  endif
+
+  freeglut_sources += files(
+    'src/mswin/fg_cursor_mswin.c',
+    'src/mswin/fg_display_mswin.c',
+    'src/mswin/fg_ext_mswin.c',
+    'src/mswin/fg_gamemode_mswin.c',
+    'src/mswin/fg_init_mswin.c',
+    'src/mswin/fg_internal_mswin.h',
+    'src/mswin/fg_input_devices_mswin.c',
+    'src/mswin/fg_joystick_mswin.c',
+    'src/mswin/fg_main_mswin.c',
+    'src/mswin/fg_menu_mswin.c',
+    'src/mswin/fg_spaceball_mswin.c',
+    'src/mswin/fg_state_mswin.c',
+    'src/mswin/fg_structure_mswin.c',
+    'src/mswin/fg_window_mswin.c',
+    'src/mswin/fg_cmap_mswin.c',
+  )
+
+  freeglut_rc = configure_file(
+    input: 'freeglut.rc.in',
+    output: 'freeglut.rc',
+    encoding: 'cp1252',
+    configuration: config)
+  freeglut_sources += import('windows').compile_resources(freeglut_rc)
+
+  add_project_arguments('-DFREEGLUT_EXPORTS', language: 'c')
+  add_project_arguments('-D_WIN32_WINNT=0x0601', language: 'c')
+
+  freeglut_deps += cc.find_library('winmm')
+  freeglut_deps += cc.find_library('gdi32')
+
+else # not windows
+
+  if get_option('wayland')
+    freeglut_sources += files(
+      'src/wayland/fg_cursor_wl.c',
+      'src/wayland/fg_ext_wl.c',
+      'src/wayland/fg_gamemode_wl.c',
+      'src/wayland/fg_init_wl.c',
+      'src/wayland/fg_internal_wl.h',
+      'src/wayland/fg_input_devices_wl.c',
+      'src/wayland/fg_main_wl.c',
+      'src/wayland/fg_state_wl.c',
+      'src/wayland/fg_structure_wl.c',
+      'src/wayland/fg_window_wl.c',
+      # font, serial port & joystick code are agnostic
+      'src/x11/fg_glutfont_definitions_x11.c',
+      'src/x11/fg_input_devices_x11.c',
+      'src/x11/fg_joystick_x11.c',
+      'src/egl/fg_internal_egl.h',
+      'src/egl/fg_display_egl.c',
+      'src/egl/fg_ext_egl.c',
+      'src/egl/fg_init_egl.c',
+      'src/egl/fg_init_egl.h',
+      'src/egl/fg_state_egl.c',
+      'src/egl/fg_state_egl.h',
+      'src/egl/fg_structure_egl.c',
+      'src/egl/fg_structure_egl.h',
+      'src/egl/fg_window_egl.c',
+      'src/egl/fg_window_egl.h',
+    )
+
+    add_project_arguments('-DFREEGLUT_WAYLAND', language: 'c')
+    freeglut_deps += dependency('wayland-client, wayland-cursor')
+    freeglut_deps += dependency('wayland-egl, egl')
+    freeglut_deps += dependency('xkbcommon')
+
+  else
+    freeglut_sources += files(
+      'src/x11/fg_cursor_x11.c',
+      'src/x11/fg_ext_x11.c',
+      'src/x11/fg_gamemode_x11.c',
+      'src/x11/fg_glutfont_definitions_x11.c',
+      'src/x11/fg_init_x11.c',
+      'src/x11/fg_internal_x11.h',
+      'src/x11/fg_input_devices_x11.c',
+      'src/x11/fg_joystick_x11.c',
+      'src/x11/fg_main_x11.c',
+      'src/x11/fg_menu_x11.c',
+      'src/x11/fg_spaceball_x11.c',
+      'src/x11/fg_state_x11.c',
+      'src/x11/fg_structure_x11.c',
+      'src/x11/fg_window_x11.c',
+      'src/x11/fg_xinput_x11.c',
+      'src/x11/fg_cmap_x11.c',
+      'src/x11/fg_internal_x11_glx.h',
+      'src/x11/fg_display_x11_glx.c',
+      'src/x11/fg_state_x11_glx.c',
+      'src/x11/fg_state_x11_glx.h',
+      'src/x11/fg_window_x11_glx.c',
+      'src/x11/fg_window_x11_glx.h',
+    )
+
+    freeglut_deps += dependency('x11')
+
+    foreach d : [['xrandr', 'XRANDR'],
+                 ['xxf86vm', 'XF86VMODE'],
+                 ['xi', 'XINPUT2']]
+      _dep = dependency(d[0], required: false)
+      if _dep.found()
+        freeglut_deps += _dep
+        add_project_arguments('-DHAVE_X11_EXTENSIONS_@0@_H'.format(d[1]),
+                              language: 'c')
+      endif
+    endforeach
+
+  endif
+
+  add_project_arguments('-D_GNU_SOURCE', language: 'c')
+endif
+
+foreach h : ['sys/types.h', 'unistd.h', 'sys/time.h', 'stdbool.h',
+             'sys/param.h', 'sys/ioctl.h', 'fcntl.h', 'stdint.h',
+             'inttypes.h']
+  if cc.has_header(h)
+    h = h.replace('/', '_')
+    h = h.replace('.', '_')
+    add_project_arguments('-DHAVE_@0@'.format(h.to_upper()), language: 'c')
+  endif
+endforeach
+
+if cc.has_function('gettimeofday')
+  add_project_arguments('-DHAVE_GETTIMEOFDAY', language: 'c')
+endif
+
+if cc.has_function('XParseGeometry', dependencies: freeglut_deps,
+                   prefix: '#include <X11/Xlib.h>')
+  add_project_arguments('-DHAVE_XPARSEGEOMETRY', language: 'c')
+else
+  freeglut_sources += files(
+    'src/util/xparsegeometry_repl.c',
+    'src/util/xparsegeometry_repl.h',
+  )
+  add_project_arguments('-DNEED_XPARSEGEOMETRY_IMPL', language: 'c')
+endif
+
+freeglut_def = configure_file(
+  input: 'src/freeglutdll.def.in',
+  output: 'freeglutdll.def',
+  configuration: config,
+)
+
+compile_args = ['-DFREEGLUT_LIB_PRAGMAS=0']
+if get_option('default_library') == 'static'
+  compile_args += '-DFREEGLUT_STATIC'
+  add_project_arguments('-DFREEGLUT_STATIC', language: 'c')
+endif
+
+freeglut_includes = include_directories('include')
+
+libfreeglut = library(
+  'freeglut',
+  freeglut_sources,
+  include_directories: [freeglut_includes, include_directories('src')],
+  dependencies: freeglut_deps,
+  soversion: host_system == 'windows' ? '' : version[0],
+  version: meson.project_version(),
+  vs_module_defs: freeglut_def,
+  install: true,
+)
+
+install_headers(
+  'include/GL/freeglut_ext.h',
+  'include/GL/freeglut_std.h',
+  'include/GL/freeglut_ucall.h',
+  'include/GL/freeglut.h',
+  'include/GL/glut.h',
+  subdir: 'GL',
+)
+
+freeglut_dep = declare_dependency(
+  compile_args: compile_args,
+  link_with: libfreeglut,
+  include_directories: freeglut_includes,
+)

subprojects/packagefiles/freeglut/meson_options.txt

@@ -0,0 +1 @@
+option('wayland', type : 'boolean', value: false, description : 'Use Wayland (no X11)')