%define distname %{name}-%{version}

%bcond_without egl
%define git 20250805

Name:		mesa-demos
Version: 	9.0.0
Release: 	%mkrel 1.1
Summary:	Demos for Mesa (OpenGL compatible 3D lib)
Group:		Graphics/Utilities
License:	MIT
URL:		https://www.mesa3d.org/
# git clone git://anongit.freedesktop.org/mesa/demos
# NAME=mesa-demos; DATE=$(git show -s --pretty=%ai | awk '{ gsub("-", "", $1); print $1 }'); DISTNAME=$NAME-$DATE ; git archive --format=tar.gz --prefix=$DISTNAME/ HEAD > $DISTNAME.tar.gz
Source0:	https://archive.mesa3d.org/demos/%{name}-%{version}-%{git}.tar.xz
Source4:	Mesa-icons.tar.bz2

# Upstream patches (from https://gitlab.freedesktop.org/mesa/demos)

BuildRequires:	meson
BuildRequires:	glslang
# (tv) BR probably need to be shrinked:
BuildRequires:	tcl
BuildRequires:	texinfo
BuildRequires:	pkgconfig(xfixes)	>= 4.0.3
BuildRequires:	pkgconfig(xt)		>= 1.0.5
BuildRequires:	pkgconfig(xmu)		>= 1.0.3
BuildRequires:	pkgconfig(x11)		>= 1.3.3
BuildRequires:	pkgconfig(xdamage)	>= 1.1.1
BuildRequires:	pkgconfig(expat)	>= 2.0.1
BuildRequires:	gccmakedep
BuildRequires:	pkgconfig(xextproto)	>= 7.3
BuildRequires:	pkgconfig(libdrm)	>= 2.4.19-3

BuildRequires:	pkgconfig(xext)		>= 1.1.1
BuildRequires:	pkgconfig(xxf86vm)	>= 1.1.0
BuildRequires:	pkgconfig(xi)		>= 1.3

BuildRequires:	pkgconfig(glew)
BuildRequires:	pkgconfig(freetype2)
BuildRequires:	pkgconfig(wayland-server)
BuildRequires:	pkgconfig(wayland-protocols)

BuildRequires:	pkgconfig(libdecor-0)
BuildRequires:	pkgconfig(xcb)
BuildRequires:	pkgconfig(xkbcommon)
BuildRequires:	pkgconfig(vulkan)

%if %with egl
BuildRequires:	mesaegl-devel
BuildRequires:	mesaglesv1-devel
BuildRequires:	mesaglesv2-devel
Requires:	eglinfo = %{version}
%endif
BuildRequires:	gbm-devel

# (tv) for glinfo:
BuildRequires:	pkgconfig(freeglut)

Requires:	glxinfo = %{version}

%description
Mesa is an OpenGL 2.1 compatible 3D graphics library.

This package contains some demo programs for the Mesa library.

%if %with egl
%package -n	eglinfo
Summary:	Command-line EGL information tool
Group:		Graphics/Utilities
Conflicts:	mesa-demos < 8.5.0-2

%description -n	eglinfo
Mesa is an OpenGL 2.1 compatible 3D graphics library.

This package contains the eglinfo EGL information utility.
%endif

%package -n	glxinfo
Summary:	Command-line GLX information tool
Group:		Graphics/Utilities
Conflicts:	mesa-demos < 7.7-4

%description -n	glxinfo
Mesa is an OpenGL 2.1 compatible 3D graphics library.

This package contains the glinfo & glxinfo GLX information utility.

%prep
%autosetup -p1 -n %{distname}

perl -pi -e "s,\"([^/].+?)\.(vert|geom|frag)\",\"%{_datadir}/%{name}/\$1.\$2\",g" src/*/*.c

%build
%meson -Dwith-system-data-files=true \
       -Dx11=enabled \
       -Dwayland=enabled \
       -Degl=%{?with_egl:enabled}%{!?with_egl:disabled} \
       -Dgles1=enabled \
       -Dgles2=enabled \
       -Dvulkan=enabled \
       -Dlibdrm=enabled
       
%meson_build

%install
%meson_install

# (fg) So that demos at least work :)
cp -a src/*/*.{frag,vert} %{buildroot}%{_datadir}/%{name}

# (tv) fix conflict with bitmap:
mv %{buildroot}%{_bindir}/bitmap{,-gl}

%if %with egl
# (blino) install some egl test apps as well
pushd %{_vpath_builddir}/src/egl/opengl
for p in dmabufshare eglgears ../common/eglinfo eglkms egltri peglgears xeglgears xeglthreads; do
    install -m 0755 $p %{buildroot}%{_bindir}
done
popd
%endif

# icons for three demos examples [we lack a frontend
# to launch the demos obviously]
install -d %{buildroot}%{_miconsdir}
install -d %{buildroot}%{_iconsdir}
install -d %{buildroot}%{_liconsdir}
tar jxvf %{SOURCE4} -C %{buildroot}%{_iconsdir}

%files
%{_bindir}/*
%if %with egl
%exclude %{_bindir}/eglinfo
%endif
%exclude %{_bindir}/glxinfo
%exclude %{_bindir}/glinfo
%dir %{_datadir}/%{name}
%{_datadir}/%{name}/*
%{_miconsdir}/*demos*.png
%{_iconsdir}/*demos*.png
%{_liconsdir}/*demos*.png

%if %with egl
%files -n eglinfo
%{_bindir}/eglinfo
%endif

%files -n glxinfo
%{_bindir}/glxinfo
%{_bindir}/glinfo