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/**
* SPDX-FileCopyrightText: Copyright (C) 2024 ZeldaRET
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef UTIL_H
#define UTIL_H
#include <stdint.h>
// Endian
#if defined(__linux__) || defined(__CYGWIN__)
#include <endian.h>
#elif defined(__APPLE__)
#include <libkern/OSByteOrder.h>
#define htobe16(x) OSSwapHostToBigInt16(x)
#define htole16(x) OSSwapHostToLittleInt16(x)
#define be16toh(x) OSSwapBigToHostInt16(x)
#define le16toh(x) OSSwapLittleToHostInt16(x)
#define htobe32(x) OSSwapHostToBigInt32(x)
#define htole32(x) OSSwapHostToLittleInt32(x)
#define be32toh(x) OSSwapBigToHostInt32(x)
#define le32toh(x) OSSwapLittleToHostInt32(x)
#define htobe64(x) OSSwapHostToBigInt64(x)
#define htole64(x) OSSwapHostToLittleInt64(x)
#define be64toh(x) OSSwapBigToHostInt64(x)
#define le64toh(x) OSSwapLittleToHostInt64(x)
#else
#error "Endian conversion unsupported, add it"
#endif
#define ARRAY_COUNT(arr) (sizeof(arr) / sizeof((arr)[0]))
#define NORETURN __attribute__((noreturn))
#define UNUSED __attribute__((unused))
#define strequ(s1, s2) ((__builtin_constant_p(s2) ? strncmp(s1, s2, sizeof(s2) - 1) : strcmp(s1, s2)) == 0)
#define MALLOC_CHECKED(length) \
({ \
size_t malloc_len_ = (size_t)(length); \
void *result_ = malloc(malloc_len_); \
if (result_ == NULL) \
error("[malloc] Failed to allocate %lu bytes @ [%s:%u]", malloc_len_, __FILE__, __LINE__); \
result_; \
})
#define MALLOC_CHECKED_INFO(length, fmt, ...) \
({ \
size_t malloc_len_ = (size_t)(length); \
void *result_ = malloc(malloc_len_); \
if (result_ == NULL) \
error("[malloc] Failed to allocate %lu bytes @ [%s:%u] (" fmt ")", malloc_len_, __FILE__, __LINE__, \
##__VA_ARGS__); \
result_; \
})
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#define ABS(x) (((x) < 0) ? (-(x)) : (x))
#define FWRITE(file, data, size) \
do { \
if (fwrite((data), (size), 1, (file)) != 1) { \
error("[%s:%d] Could not write %lu bytes to file", __FILE__, __LINE__, (size_t)(size)); \
} \
} while (0)
#define FREAD(file, data, size) \
do { \
if (fread((data), (size), 1, (file)) != 1) { \
error("[%s:%d] Could not read %lu bytes from file", __FILE__, __LINE__, (size_t)(size)); \
} \
} while (0)
#define CC4_CHECK(buf, str) \
((buf)[0] == (str)[0] && (buf)[1] == (str)[1] && (buf)[2] == (str)[2] && (buf)[3] == (str)[3])
#define CC4(c1, c2, c3, c4) (((c1) << 24) | ((c2) << 16) | ((c3) << 8) | (c4))
#define CHUNK_BEGIN(file, name, start) \
do { \
*(start) = ftell(out); \
FWRITE(file, name "\0\0\0\0", 8); \
} while (0)
#define CHUNK_WRITE(file, structure) \
do { \
FWRITE(file, structure, sizeof(*(structure))); \
} while (0)
#define CHUNK_WRITE_RAW(file, data, length) FWRITE(file, data, length)
#define CHUNK_END(file, start, endian_func) \
do { \
long end = ftell(out); \
uint32_t size = endian_func(end - (start)-8); \
fseek(out, (start) + 4, SEEK_SET); \
FWRITE(out, &size, 4); \
fseek(out, end, SEEK_SET); \
} while (0)
__attribute__((format(printf, 1, 2))) NORETURN void
error(const char *fmt, ...);
__attribute__((format(printf, 1, 2))) void
warning(const char *fmt, ...);
#endif
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