CODE:

function color_calc(img_data,width,height) {
	var back_color = new rgba_t();
	var number_color = new rgba_t();
	// 設定
	back_color.r = 255; back_color.g = 255; back_color.b = 255; back_color.a = 255; // 背景色
	number_color.r = 16; number_color.g = 16; number_color.b = 16; number_color.a = 255; // 数字の色
	var cols = 4; // 横の画像数
	var rows = 4; // 縦の画像数
	var renban = true; // 連番(true)か縦横の番号(false)か
	// 初期化
	for (var y = 0 ;y = rows ? cols : rows) - 1);
	var number_digits = ("" + number_max).length;
	var max_height = (renban ? box_height : (box_height >> 1)) - 2;
	var max_width = ~~((box_width - 1) / number_digits);
	var number_width = (max_width * 2 > 1);
	var number_haba = number_width >= 6 ? ~~(number_width / 6) : 1;
	// [sx, sy, dx, dy]
	var bar = [[0, 0, 1, 0], [0, 0, 0, 1], [1, 0, 0, 1], [0, 1, 1, 0], [0, 1, 0, 1], [1, 1, 0, 1], [0, 2, 1, 0]];
	// [dx, dy, dsx, dsy]
	var d = [[0, 1, 0, 0], [1, 0, 0, 0], [-1, 0, 0, 0], [0, 1, 0, -(number_haba >> 1)], [1, 0, 0, 0], [-1, 0, 0, 0], [0, -1, 0, 0]];
	var digits = [0x77, 0x24, 0x5D, 0x6D, 0x2E, 0x6B, 0x7B, 0x25, 0x7F, 0x6F];
	function render_number(x, y, n) {
		var nn = "" + n;
		for (var i = 0; i  0 && l >= ~~(number_width * 5 / 6)) break;
							img_data[y + bar[j][1] * number_width + bar[j][3] * l + d[j][3] + d[j][1] * k]
							[x + i * number_width + bar[j][0] * ~~(number_width * 5 / 6) + bar[j][2] * l + d[j][2] + d[j][0] * k] = number_color;
						}
					}
				}
			}
		}
	}
	// 生成
	for (var r = 0; r > 1), c);
			}
		}
	}
}