temp/gtk4.0: fork from alpine to fix bug in PinePhone (MR 3122)

Add hack to prevent GTK4 apps to be unusable in the PinePhone.

Fixes #1510
Upstream issue https://gitlab.gnome.org/GNOME/gtk/-/issues/4763

A good solution will take a bit more time but is an on-going process
https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/4687

[ci:skip-build]: already built successfully in CI

temp/gtk4.0/APKBUILD

@@ -0,0 +1,129 @@
+# Forked from Alpine to apply patch to fix PinePhone
+# Disabled docs and broadway backend
+pkgname=gtk4.0
+pkgver=9999
+_pkgver=4.6.3
+pkgrel=0
+pkgdesc="The GTK Toolkit (v4)"
+url="https://www.gtk.org/"
+install="$pkgname.post-install $pkgname.post-upgrade $pkgname.post-deinstall"
+arch="all !s390x !riscv64" # blocked by polkit -> colord
+options="!check" # Test suite is known to fail upstream
+license="LGPL-2.1-or-later"
+subpackages="$pkgname-demo $pkgname-dev $pkgname-lang $pkgname-dbg"
+depends="shared-mime-info gtk-update-icon-cache"
+
+depends_dev="
+	atk-dev
+	gdk-pixbuf-dev
+	glib-dev
+	libepoxy-dev
+	libxext-dev
+	libxi-dev
+	libxinerama-dev
+	wayland-protocols
+	wayland-libs-client
+	wayland-libs-cursor
+	libxkbcommon-dev
+	vulkan-headers
+	"
+makedepends="
+	$depends_dev
+	perl
+	cups-dev
+	expat-dev
+	gettext-dev
+	gnutls-dev
+	gobject-introspection-dev
+	libice-dev
+	tiff-dev
+	zlib-dev
+	at-spi2-atk-dev
+	cairo-dev
+	fontconfig-dev
+	pango-dev
+	wayland-dev
+	libx11-dev
+	libxcomposite-dev
+	libxcursor-dev
+	libxdamage-dev
+	libxfixes-dev
+	libxrandr-dev
+	meson
+	iso-codes-dev
+	vulkan-loader-dev
+	sassc
+	colord-dev
+	gstreamer-dev
+	gst-plugins-bad-dev
+	gtk-doc>=1.33
+	gi-docgen
+	py3-docutils
+	graphene-dev
+	"
+source="https://download.gnome.org/sources/gtk/${_pkgver%.*}/gtk-$_pkgver.tar.xz
+	gdk-hack-context-realize.patch
+	"
+
+builddir="$srcdir/gtk-$_pkgver"
+
+build() {
+	# We don't run tests and they currently fail to build
+	abuild-meson \
+		-Dgtk_doc=false \
+		-Dbroadway-backend=false \
+		-Dman-pages=false \
+		-Dbuild-tests=false \
+		. output
+	meson compile ${JOBS:+-j ${JOBS}} -C output
+}
+
+package() {
+	DESTDIR="$pkgdir" meson install --no-rebuild -C output
+
+	# use gtk-update-icon-cache from gtk+2.0 for now. The icon cache is forward
+	# compatible so this is fine.
+	# do the same for gtk4-update-icon-cache
+	rm -f "$pkgdir"/usr/bin/gtk-update-icon-cache
+	rm -f "$pkgdir"/usr/bin/gtk4-update-icon-cache
+	rm -f "$pkgdir"/usr/share/man/man1/gtk-update-icon-cache.1
+}
+
+demo() {
+	pkgdesc="$pkgdesc (demonstration application)"
+	amove \
+		usr/bin/gtk4-demo \
+		usr/bin/gtk4-demo-application \
+		usr/bin/gtk4-icon-browser \
+		usr/bin/gtk4-print-editor \
+		usr/bin/gtk4-widget-factory \
+		usr/share/applications/org.gtk.Demo4.desktop \
+		usr/share/applications/org.gtk.IconBrowser4.desktop \
+		usr/share/applications/org.gtk.PrintEditor4.desktop \
+		usr/share/applications/org.gtk.WidgetFactory4.desktop \
+		usr/share/glib-2.0/schemas/org.gtk.Demo4.gschema.xml \
+		usr/share/gtk-4.0/gtk4builder.rng \
+		usr/share/icons
+}
+
+dev() {
+	default_dev
+
+	amove \
+		usr/bin/gtk4-builder-tool \
+		usr/bin/gtk4-encode-symbolic-svg \
+		usr/bin/gtk4-query-settings \
+		usr/share/gtk-4.0/valgrind
+}
+
+lang() {
+	default_lang
+
+	# These are some localized emoji labels.
+	amove usr/share/gtk-4.0/emoji
+}
+
+sha512sums="
+0e96b39a8171ccefc24808d1af8af8e3cbcc9b403c1bdfd85778ed2e824c93e3687b7baa1237b05fa35181d300eacfd6cc9f79c7a6eef70b365991f0a2769f71  gtk-4.6.3.tar.xz
+e0ab58ad4ad1ce73ac6f038144a8de0326d41c764f91d4b91864efcfff548d7a1ba1318b9c4b276821e72d8612a0677533914fd5870a1a9f2db483a4b43bff5d  gdk-hack-context-realize.patch
+"

temp/gtk4.0/gdk-hack-context-realize.patch

@@ -0,0 +1,27 @@
+This is a hack to solve some crashes for GTK4 apps in the pinephone
+by dirty fixing an upstream bug[1]. The real fix will take longer and
+will not be trivial to backport[2]. In the meanwhile, we force a GLES
+context if it is allowed and the shared context is also using GLES,
+to avoid the creation of a GL context with wrong version. Hopefully,
+this should not have additional side-effects for other devices.
+
+[1] https://gitlab.gnome.org/GNOME/gtk/-/issues/4763
+[2] https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/4687
+
+diff --git i/gdk/gdkglcontext.c w/gdk/gdkglcontext.c
+index 3869b14da0..57a3661492 100644
+--- i/gdk/gdkglcontext.c
++++ w/gdk/gdkglcontext.c
+@@ -280,6 +280,11 @@ gdk_gl_context_real_realize (GdkGLContext  *context,
+       G_GNUC_UNUSED gint64 start_time = GDK_PROFILER_CURRENT_TIME;
+
+       if (share != NULL)
+-        gdk_gl_context_get_required_version (share, &major, &minor);
++        {
++          gdk_gl_context_get_required_version (share, &major, &minor);
++          if (gdk_gl_context_get_use_es (share) &&
++              gdk_gl_context_is_api_allowed (context, GDK_GL_API_GLES, NULL))
++            gdk_gl_context_set_allowed_apis (context, GDK_GL_API_GLES);
++        }
+       else
+         gdk_gl_context_get_required_version (context, &major, &minor);

temp/gtk4.0/gtk4.0.post-deinstall

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+rm -f etc/gtk-4.0/gdk-pixbuf.loaders

temp/gtk4.0/gtk4.0.post-install

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+mkdir -p etc/gtk-4.0
+usr/bin/gdk-pixbuf-query-loaders > etc/gtk-4.0/gdk-pixbuf.loaders
+

temp/gtk4.0/gtk4.0.post-upgrade

@@ -0,0 +1 @@
+gtk4.0.post-install