%global forgeurl        https://github.com/dreamworksanimation
%global cmodver         1.0.0.5

# CUDA/Optix Support
%bcond gpu      0
%bcond tests    1

# Core Dump Fix
%global optflags %(echo '%optflags' | sed s/-Wp,-D_GLIBCXX_ASSERTIONS//)

Name:           mcrt_denoise
Version:        5.22.0.0
Release:        %{autorelease}
Summary:        MoonRay’s Denoiser

License:        Apache-2.0
URL:            https://openmoonray.org/
Source0:        %{forgeurl}/%{name}/archive/refs/tags/%{name}-%{version}.tar.gz
Source1:        %{forgeurl}/cmake_modules/archive/refs/tags/cmake_modules-%{cmodver}.tar.gz

%if %{with gpu}
Patch0:         %{name}-optix.patch
%endif

BuildRequires:  cmake >= 3.23.1
BuildRequires:  gcc-c++
%if %{with gpu}
BuildRequires:  nvidia-sdk-optix >= 8.0.0
BuildRequires:  cuda-nvcc
%endif
Requires:       cmake(OpenImageDenoise)

Requires:       oidn

Requires:       SceneRdl2 = 14.22.0.0
Provides:       McrtDenoise = %{version}

%description
OpenImageDenoise (OIDN) and OptiX de-noisers for moonray.


%package        devel
Summary:        Development files for %{name}
Requires:       %{name}%{?_isa} = %{version}-%{release}

%if %{with gpu}
Requires:       nvidia-sdk-optix >= 8.0.0
%endif

Requires:       cmake(OpenImageDenoise)
Requires:       cmake(SceneRdl2) = 14.22.0.0

%description    devel
The %{name}-devel package contains libraries and header files of %{name}, required to build other parts of OpenMoonRay.


%prep
%autosetup -p1 -n %{name}-%{name}-%{version}
mkdir -p cmake_modules
tar -xzf %{SOURCE1} --strip-components=1 -C $_


%build
%if %{with gpu}
export NVCC_PREPEND_FLAGS='-allow-unsupported-compiler'
%endif
CMAKE_MODULES_ROOT=%{_builddir}/%{buildsubdir}/cmake_modules \
ARRAS_SESSION_PATH=%{_libdir}/openmoonray/sessions \
%cmake \
    -DCMAKE_MODULE_PATH=${CMAKE_MODULES_ROOT}/cmake \
    -DBUILD_TESTING=%{expr:%{with tests}?"ON":"OFF"} \
%if %{with gpu}
    -DOptiX_INCLUDE_DIRS=/usr/include/optix \
    -DCMAKE_CUDA_COMPILER=%{_bindir}/nvcc \
    -DCMAKE_CUDA_FLAGS="-Xcompiler -fPIC" \
%endif
    -DMOONRAY_USE_OPTIX=%{expr:%{with gpu}?"ON":"OFF"}
%cmake_build


%install
%cmake_install

# Manually include Optix installation
%if %{with gpu}
sed -i '13a set(CMAKE_INCLUDE_PATH /usr/include/optix ${CMAKE_INCLUDE_PATH})' \
    %{buildroot}%{_libdir}/cmake/*/McrtDenoiseConfig.cmake
%endif


%files
%license LICENSE
%{_libdir}/libdenoiser.so

%files devel
%{_includedir}/%{name}
%{_libdir}/cmake/McrtDenoise-%(echo %{version} | sed 's/\(.*\)\.[0-9]*$/\1/').0

%changelog
%autochangelog