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https://github.com/coop-deluxe/sm64coopdx.git
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155 lines
4.6 KiB
C
155 lines
4.6 KiB
C
#ifndef UTILS_H_
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#define UTILS_H_
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#include <stdio.h>
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#include <stdint.h>
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// defines
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// printing size_t varies by compiler
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#if defined(_MSC_VER) || defined(__MINGW32__)
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#include <windows.h>
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#define SIZE_T_FORMAT "%Iu"
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#define realpath(N,R) _fullpath((R),(N),MAX_PATH)
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#else
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#define SIZE_T_FORMAT "%zu"
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#endif
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#define KB 1024
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#define MB (1024 * KB)
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// number of elements in statically declared array
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#define DIM(S_ARR_) (sizeof(S_ARR_) / sizeof(S_ARR_[0]))
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#define MIN(A_, B_) ((A_) < (B_) ? (A_) : (B_))
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#define MAX(A_, B_) ((A_) > (B_) ? (A_) : (B_))
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// align value to N-byte boundary
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#define ALIGN(VAL_, ALIGNMENT_) (((VAL_) + ((ALIGNMENT_) - 1)) & ~((ALIGNMENT_) - 1))
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// read/write u32/16 big/little endian
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#define read_u32_be(buf) (unsigned int)(((buf)[0] << 24) + ((buf)[1] << 16) + ((buf)[2] << 8) + ((buf)[3]))
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#define read_u32_le(buf) (unsigned int)(((buf)[1] << 24) + ((buf)[0] << 16) + ((buf)[3] << 8) + ((buf)[2]))
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#define write_u32_be(buf, val) do { \
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(buf)[0] = ((val) >> 24) & 0xFF; \
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(buf)[1] = ((val) >> 16) & 0xFF; \
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(buf)[2] = ((val) >> 8) & 0xFF; \
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(buf)[3] = (val) & 0xFF; \
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} while(0)
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#define read_u16_be(buf) (((buf)[0] << 8) + ((buf)[1]))
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#define write_u16_be(buf, val) do { \
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(buf)[0] = ((val) >> 8) & 0xFF; \
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(buf)[1] = ((val)) & 0xFF; \
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} while(0)
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// Windows compatibility
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#if defined(_MSC_VER) || defined(__MINGW32__)
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#include <direct.h>
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#define mkdir(DIR_, PERM_) _mkdir(DIR_)
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#ifndef strcasecmp
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#define strcasecmp(A, B) stricmp(A, B)
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#endif
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#endif
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// typedefs
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#define MAX_DIR_FILES 128
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typedef struct
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{
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char *files[MAX_DIR_FILES];
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int count;
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} dir_list;
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typedef enum
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{
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ENCODING_RAW,
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ENCODING_U8,
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ENCODING_U16,
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ENCODING_U32,
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ENCODING_U64,
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} write_encoding;
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// global verbosity setting
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extern int g_verbosity;
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#undef ERROR
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#define ERROR(...) fprintf(stderr, __VA_ARGS__)
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#define INFO(...) if (g_verbosity) printf(__VA_ARGS__)
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// functions
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// convert two bytes in big-endian to signed int
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int read_s16_be(unsigned char *buf);
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// convert four bytes in big-endian to float
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float read_f32_be(unsigned char *buf);
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// determine if value is power of 2
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// returns 1 if val is power of 2, 0 otherwise
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int is_power2(unsigned int val);
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// print buffer as raw binary, hex u8, hex u16, hex u32, hex u64. pads to encoding size
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// fp: file pointer
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// encoding: encoding type to use (see write_encoding)
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// buf: buffer to read bytes from
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// length: length of buffer to print
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int fprint_write_output(FILE *fp, write_encoding encoding, const uint8_t *buf, int length);
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// perform byteswapping to convert from v64 to z64 ordering
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void swap_bytes(unsigned char *data, long length);
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// reverse endian to convert from n64 to z64 ordering
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void reverse_endian(unsigned char *data, long length);
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// get size of file without opening it;
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// returns file size or negative on error
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long filesize(const char *file_name);
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// update file timestamp to now, creating it if it doesn't exist
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void touch_file(const char *filename);
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// read entire contents of file into buffer
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// returns file size or negative on error
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long read_file(const char *file_name, unsigned char **data);
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// write buffer to file
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// returns number of bytes written out or -1 on failure
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long write_file(const char *file_name, unsigned char *data, long length);
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// generate an output file name from input name by replacing file extension
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// in_name: input file name
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// out_name: buffer to write output name in
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// extension: new file extension to use
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void generate_filename(const char *in_name, char *out_name, char *extension);
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// extract base filename from file path
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// name: path to file
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// returns just the file name after the last '/'
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char *basename(const char *name);
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// make a directory if it doesn't exist
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// dir_name: name of the directory
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void make_dir(const char *dir_name);
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// copy a file from src_name to dst_name. will not make directories
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// src_name: source file name
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// dst_name: destination file name
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long copy_file(const char *src_name, const char *dst_name);
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// list a directory, optionally filtering files by extension
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// dir: directory to list files in
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// extension: extension to filter files by (NULL if no filtering)
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// list: output list and count
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void dir_list_ext(const char *dir, const char *extension, dir_list *list);
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// free associated date from a directory list
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// list: directory list filled in by dir_list_ext() call
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void dir_list_free(dir_list *list);
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// determine if a string ends with another string
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// str: string to check if ends with 'suffix'
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// suffix: string to see if 'str' ends with
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// returns 1 if 'str' ends with 'suffix'
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int str_ends_with(const char *str, const char *suffix);
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#endif // UTILS_H_
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