| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SRC_UI_LIB_ESCHER_GEOMETRY_TYPE_UTILS_H_ |
| #define SRC_UI_LIB_ESCHER_GEOMETRY_TYPE_UTILS_H_ |
| |
| #include "src/ui/lib/escher/geometry/types.h" |
| |
| namespace escher { |
| |
| // Extend |v| to be a homogeneous vec4. The w-component is set to |w|, |
| // which should be 0 for vectors and 1 for points. |
| inline vec4 Homo4(const vec3& v, float w) { return vec4(v, w); } |
| inline vec4 Homo4(const vec2& v, float w) { return vec4(v, 0, w); } |
| |
| } // namespace escher |
| |
| #endif // SRC_UI_LIB_ESCHER_GEOMETRY_TYPE_UTILS_H_ |
