ByteArray.h

   1 /* (C) 2011 - 2012 rofl0r.
   2 Permission for use by AGS is hereby granted. */
   3
   4 #ifndef BYTEARRAY_H
   5 #define BYTEARRAY_H
   6
   7 #ifdef __cplusplus
   8 extern "C" {
   9 #endif
  10
  11 #include <unistd.h>
  12 #include <sys/stat.h>
  13 #include <fcntl.h>
  14 #include <string.h>
  15 #include <stdio.h>
  16 #include "MemGrow.h"
  17
  18 enum ByteArray_Endianess {
  19         BAE_BIG,
  20         BAE_LITTLE,
  21 };
  22
  23 enum ByteArray_Type {
  24         BAT_MEMSTREAM,
  25         BAT_FILESTREAM,
  26 };
  27
  28 enum ByteArray_Flags {
  29         BAF_CANGROW = 1,
  30 };
  31
  32 struct ByteArray {
  33         int type;
  34         int flags;
  35         enum ByteArray_Endianess endian;
  36         enum ByteArray_Endianess sys_endian;
  37         off_t pos;
  38         off_t size;
  39         MG source_mem;
  40         int source_fd;
  41         const char *filename;
  42         ssize_t (*readMultiByte)(struct ByteArray*, char*, size_t);
  43         unsigned long long (*readUnsignedLongLong)(struct ByteArray*);
  44         unsigned int (*readUnsignedInt)(struct ByteArray*);
  45         signed int (*readInt)(struct ByteArray*);
  46         unsigned short (*readUnsignedShort)(struct ByteArray*);
  47         signed short (*readShort)(struct ByteArray*);
  48         unsigned char (*readUnsignedByte)(struct ByteArray*);
  49         signed char (*readByte)(struct ByteArray*);
  50         off_t (*readBytes) (struct ByteArray* self, struct ByteArray *dest, off_t start, off_t len);
  51         off_t (*bytesAvailable)(struct ByteArray*);
  52         off_t (*writeByte) (struct ByteArray* self, signed char what);
  53         off_t (*writeUnsignedByte) (struct ByteArray* self, unsigned char what);
  54         off_t (*writeShort) (struct ByteArray* self, signed short what);
  55         off_t (*writeUnsignedShort) (struct ByteArray* self, unsigned short what);
  56         off_t (*writeInt) (struct ByteArray* self, signed int what);
  57         off_t (*writeUnsignedInt) (struct ByteArray* self, unsigned int what);
  58         off_t (*writeMem) (struct ByteArray* self, unsigned char* what, size_t len);
  59         off_t (*writeUTFBytes) (struct ByteArray* self, char* what);
  60         off_t (*writeBytes) (struct ByteArray* self, struct ByteArray* what);
  61         off_t (*writeFloat) (struct ByteArray* self, float what);
  62         int (*set_position_rel) (struct ByteArray* self, int rel);
  63         int (*set_position) (struct ByteArray* self, off_t pos);
  64         off_t (*get_position) (struct ByteArray* self);
  65 };
  66
  67 void ByteArray_defaults(struct ByteArray* self);
  68 void ByteArray_ctor(struct ByteArray* self);
  69 struct ByteArray* ByteArray_new(void);
  70
  71 void ByteArray_set_endian(struct ByteArray* self, enum ByteArray_Endianess endian);
  72 void ByteArray_set_flags(struct ByteArray *self, int flags);
  73 enum ByteArray_Endianess ByteArray_get_endian(struct ByteArray* self);
  74
  75 int ByteArray_open_file(struct ByteArray* self, const char* filename);
  76 void ByteArray_close_file(struct ByteArray *self);
  77 int ByteArray_open_mem(struct ByteArray* self, char* data, size_t size);
  78 void* ByteArray_get_mem(struct ByteArray* self, size_t offset, size_t byteswanted);
  79 void ByteArray_clear(struct ByteArray* self);
  80 void ByteArray_close(struct ByteArray* self);
  81
  82 void ByteArray_set_length(struct ByteArray* self, off_t len);
  83 off_t ByteArray_get_length(struct ByteArray* self);
  84
  85 off_t ByteArray_get_position(struct ByteArray* self);
  86 int ByteArray_set_position(struct ByteArray* self, off_t pos);
  87 int ByteArray_set_position_rel(struct ByteArray* self, int rel);
  88 off_t ByteArray_bytesAvailable(struct ByteArray* self);
  89
  90 ssize_t ByteArray_readMultiByte(struct ByteArray* self, char* buffer, size_t len);
  91 unsigned long long ByteArray_readUnsignedLongLong(struct ByteArray* self);
  92 unsigned int ByteArray_readUnsignedInt(struct ByteArray* self);
  93 int ByteArray_readInt(struct ByteArray* self);
  94 unsigned short ByteArray_readUnsignedShort(struct ByteArray* self);
  95 short ByteArray_readShort(struct ByteArray* self);
  96 unsigned char ByteArray_readUnsignedByte(struct ByteArray* self);
  97 signed char ByteArray_readByte(struct ByteArray* self);
  98 off_t ByteArray_readBytes(struct ByteArray* self, struct ByteArray *dest, off_t start, off_t len);
  99
 100 off_t ByteArray_writeByte(struct ByteArray* self, signed char what);
 101 off_t ByteArray_writeUnsignedByte(struct ByteArray* self, unsigned char what);
 102 off_t ByteArray_writeShort(struct ByteArray* self, signed short what);
 103 off_t ByteArray_writeUnsignedShort(struct ByteArray* self, unsigned short what);
 104 off_t ByteArray_writeInt(struct ByteArray* self, signed int what);
 105 off_t ByteArray_writeUnsignedInt(struct ByteArray* self, unsigned int what);
 106 off_t ByteArray_writeFloat(struct ByteArray* self, float what);
 107 off_t ByteArray_writeMem(struct ByteArray* self, unsigned char* what, size_t len);
 108 off_t ByteArray_writeUTFBytes(struct ByteArray* self, char* what);
 109 off_t ByteArray_writeBytes(struct ByteArray* self, struct ByteArray* what);
 110
 111 unsigned char ByteArray_getUnsignedByte(struct ByteArray* self, off_t index);
 112 void ByteArray_setUnsignedByte(struct ByteArray* self, off_t index, unsigned char what);
 113
 114 void ByteArray_dump_to_stream(struct ByteArray* self, FILE *out);
 115 void ByteArray_dump_to_file(struct ByteArray* self, char* filename);
 116
 117 #ifdef __cplusplus
 118 }
 119 #endif
 120
 121 #pragma RcB2 DEP "ByteArray.c"
 122
 123 #endif