/* SPDX-License-Identifier: LGPL-2.1-only */

/*
 * The Rin Library – floating point module
 *
 * Copyright (C) 2015 Gediminas Jakutis
 */

#ifndef LIBRIN_FLOAT_TYPES_INCLUDED
#define LIBRIN_FLOAT_TYPES_INCLUDED

/* These rin_vec[num] types mostly mimic the analogous types found in OpenGL
 * with other existing libraries get noticed.
 *
 * rin_vecd[num] use double instead of float, but are otherwise identical to rin_vec[num].
 */

struct rin_vec2 {
	union {
		struct {
			float x;
			float y;
		};
		struct {
			float r;
			float g;
		};
		struct {
			float s;
			float t;
		};
		float arr[2];
	};
};

struct rin_vec3 {
	union {
		struct {
			float x;
			float y;
			float z;
		};
		struct {
			float r;
			float g;
			float b;
		};
		struct {
			float s;
			float t;
			float p;
		};
		float arr[3];
	};
};

struct rin_vec4 {
	union {
		struct {
			float x;
			float y;
			float z;
			float w;
		};
		struct {
			float r;
			float g;
			float b;
			float a;
		};
		struct {
			float s;
			float t;
			float p;
			float q;
		};
		float arr[4];
	};
};

struct rin_vec2d {
	union {
		struct {
			double x;
			double y;
		};
		struct {
			double r;
			double g;
		};
		struct {
			double s;
			double t;
		};
		double arr[2];
	};
};

struct rin_vec3d {
	union {
		struct {
			double x;
			double y;
			double z;
		};
		struct {
			double r;
			double g;
			double b;
		};
		struct {
			double s;
			double t;
			double p;
		};
		double arr[3];
	};
};

struct rin_vec4d {
	union {
		struct {
			double x;
			double y;
			double z;
			double w;
		};
		struct {
			double r;
			double g;
			double b;
			double a;
		};
		struct {
			double s;
			double t;
			double p;
			double q;
		};
		double arr[4];
	};
};

/* A simple 3D vertex with position and normal data. */
struct vertex {
	struct rin_vec3 position;
	struct rin_vec3 normal;
};

#endif /* LIBRIN_FLOAT_TYPES_INCLUDED */