1 /**

     2  * ShaderShark

     3  * Copyright © 2023 František Kučera (Frantovo.cz, GlobalCode.info)

     4  *

     5  * This program is free software: you can redistribute it and/or modify

     6  * it under the terms of the GNU General Public License as published by

     7  * the Free Software Foundation, version 3 of the License.

     8  *

     9  * This program is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

    12  * GNU General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU General Public License

    15  * along with this program. If not, see <http://www.gnu.org/licenses/>.

    16  */

    17 

    18 #pragma once

    19 

    20 #include <ostream>

    21 #include <string>

    22 

    23 #define LOG_LEVEL(XX) \

    24 	XX(OFF, 0, "OFF") \

    25 	XX(SEVERE, 1, "SEVERE") \

    26 	XX(WARNING, 2, "WARNING") \

    27 	XX(INFO, 3, "INFO") \

    28 	XX(CONFIG, 4, "CONFIG") \

    29 	XX(FINE, 5, "FINE") \

    30 	XX(FINER, 6, "FINER") \

    31 	XX(FINEST, 7, "FINEST") \

    32 	XX(ALL, 8, "ALL")

    33 

    34 enum class LogLevel {

    35 #define XX(a, b, c) a = (1 << b),

    36 	LOG_LEVEL(XX)

    37 #undef XX

    38 };

    39 

    40 static const char* LOG_LEVELS[] = {

    41 #define XX(a, b, c) [b] = c,

    42 	LOG_LEVEL(XX)

    43 #undef XX

    44 };

    45 

    46 #undef LOG_LEVEL

    47 

    48 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))

    49 

    50 inline const char* getLogLevelName(LogLevel l) {

    51 	auto count = ARRAY_SIZE(LOG_LEVELS);

    52 	for (int i = 0; i < count; i++) if ((int) l == 1 << i) return LOG_LEVELS[i];

    53 	return nullptr;

    54 }

    55 

    56 inline void log(std::ostream& out, LogLevel level, std::string message) {

    57 	out << getLogLevelName(level) << ": " << message << std::endl;

    58 }