From d0e18bdb7924c71cdca8dd983711171d87ef28be Mon Sep 17 00:00:00 2001 From: Benjamin Barenblat Date: Mon, 17 Jan 2022 23:12:32 -0500 Subject: glplanet, an OpenGL-based planetary renderer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit glplanet draws Earth like it currently appears from space, putting nighttime areas in shadow and daytime areas in light. It’s modeled after Xplanet (http://xplanet.sourceforge.net/), but whereas Xplanet is entirely a CPU-resident program, glplanet draws using OpenGL. It’s thus much less resource-intensive, particularly when using high-resolution textures. --- src/util.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 src/util.h (limited to 'src/util.h') diff --git a/src/util.h b/src/util.h new file mode 100644 index 0000000..37d43da --- /dev/null +++ b/src/util.h @@ -0,0 +1,35 @@ +// Copyright 2021 Benjamin Barenblat +// +// Licensed under the Apache License, Version 2.0 (the "License"); you may not +// use this file except in compliance with the License. You may obtain a copy of +// the License at +// +// https://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations under +// the License. + +#ifndef GLPLANET_SRC_UTIL_H_ +#define GLPLANET_SRC_UTIL_H_ + +#include + +#include "third_party/abseil/absl/meta/type_traits.h" + +// A variant of assert that always evaluates its arguments, even when assertions +// are disabled. +#ifdef NDEBUG +#define DCHECK(x) (void)(x) +#else +#define DCHECK(x) assert(x) +#endif + +template +constexpr absl::underlying_type_t FromEnum(T x) { + return static_cast>(x); +} + +#endif // GLPLANET_SRC_GL_UTIL_H_ -- cgit v1.2.3