add: libplacebo (#857)

anda/lib/placebo/anda.hcl

@@ -0,0 +1,5 @@
+project pkg {
+  rpm {
+	spec = "terra-libplacebo.spec"
+  }
+}

anda/lib/placebo/terra-libplacebo.spec

@@ -0,0 +1,80 @@
+Name:           terra-libplacebo
+Version:        6.338.1
+Release:        %autorelease
+Summary:        Reusable library for GPU-accelerated video/image rendering primitives
+
+License:        LGPLv2+
+URL:            https://github.com/haasn/libplacebo
+Source0:        %{url}/archive/v%{version}%{?prerelease}/libplacebo-%{version}%{?prerelease}.tar.gz
+
+BuildRequires:  gcc
+BuildRequires:  gcc-c++
+BuildRequires:  meson
+BuildRequires:  glad2 >= 2.0.0
+BuildRequires:  lcms2-devel
+BuildRequires:  libdovi-devel
+BuildRequires:  libepoxy-devel
+BuildRequires:  libunwind-devel
+BuildRequires:  libshaderc-devel >= 2018.0-1
+BuildRequires:  python3-mako
+BuildRequires:  spirv-tools-devel
+BuildRequires:  vulkan-devel
+BuildRequires:  glslang-devel
+BuildRequires:  xxhash-devel
+
+
+%description
+libplacebo is essentially the core rendering algorithms and ideas of
+mpv turned into a library. This grew out of an interest to accomplish
+the following goals:
+
+- Clean up mpv's internal API and make it reusable for other projects.
+- Provide a standard library of useful GPU-accelerated image processing
+  primitives based on GLSL, so projects like VLC or Firefox can use them
+  without incurring a heavy dependency on `libmpv`.
+- Rewrite core parts of mpv's GPU-accelerated video renderer on top of
+  redesigned abstractions. (Basically, I wanted to eliminate code smell
+  like `shader_cache.c` and totally redesign `gpu/video.c`)
+
+
+%package        devel
+Summary:        Development files for %{name}
+Requires:       %{name}%{?_isa} = %{version}-%{release}
+
+%description    devel
+The %{name}-devel package contains libraries and header files for
+developing applications that use %{name}.
+
+
+%prep
+%autosetup -p1 -n libplacebo-%{version}%{?prerelease}
+
+
+%build
+%meson \
+ -Dd3d11=disabled \
+ -Ddemos=False
+
+%meson_build
+
+
+%install
+%meson_install
+
+
+%ldconfig_scriptlets
+
+
+%files
+%license LICENSE
+%doc README.md
+%{_libdir}/libplacebo.so.338
+
+%files devel
+%{_includedir}/*
+%{_libdir}/*.so
+%{_libdir}/pkgconfig/libplacebo.pc
+
+
+%changelog
+%autochangelog

anda/lib/placebo/update.rhai

@@ -0,0 +1,4 @@
+// let txt = get("https://code.videolan.org/api/v4/projects/380/releases/");
+// rpm.version(txt.json_arr()[0].tag_name);
+// apparently their API doesn't work (for sake)
+rpm.version(gh("haasn/libplacebo"));