project-swan/libcygnet/include/cygnet/util.h

#pragma once

#include <stdexcept>
#include <stdint.h>

#include "swan-common/Matrix3.h"

namespace Cygnet {

// I don't want every use of Cygnet to drag in OpenGL headers.
using GLint = int32_t;
using GLuint = uint32_t;
using GLsizei = int32_t;
using GLenum = uint32_t;
using GLfloat = float;

using Mat3gf = SwanCommon::Matrix3<GLfloat>;

struct Color {
	float r = 0, g = 0, b = 0, a = 1;
};

struct ByteColor {
	uint8_t r = 0, g = 0, b = 0, a = 0;

	operator Color() { return { r / 255.0f, g / 255.0f, b / 255.0f, a / 255.0f }; }
};

struct GlError: public std::exception {
	GlError(std::string msg): message(std::move(msg)) {}
	const char *what() const noexcept override { return message.c_str(); }
	std::string message;
};

void glCheck();

}