source: abuse/trunk/src/imlib/include/specs.hpp @ 2

Last change on this file since 2 was 2, checked in by Sam Hocevar, 14 years ago
  • imported original 0.7.0 tarball
File size: 6.7 KB
Line 
1#ifndef __SPECS_HPP_
2#define __SPECS_HPP_
3#include "linked.hpp"
4#include <stdio.h>
5#include "jmalloc.hpp"
6#include "system.h"
7#include <fcntl.h>
8#include <stdlib.h>
9
10extern char *spec_types[];
11
12#define SPEC_INVALID_TYPE    0
13#define SPEC_COLOR_TABLE     1
14#define SPEC_PALETTE         2
15#define SPEC_IMAGE           4
16#define SPEC_FORETILE        5
17#define SPEC_BACKTILE        6
18#define SPEC_CHARACTER       7
19#define SPEC_MORPH_POINTS_8  8
20#define SPEC_MORPH_POINTS_16 9
21#define SPEC_GRUE_OBJS       10
22#define SPEC_EXTERN_SFX      11
23#define SPEC_DMX_MUS         12
24#define SPEC_PATCHED_MORPH   13
25#define SPEC_NORMAL_FILE     14
26#define SPEC_COMPRESS1_FILE  15
27#define SPEC_VECTOR_IMAGE    16
28#define SPEC_LIGHT_LIST      17
29#define SPEC_GRUE_FGMAP      18
30#define SPEC_GRUE_BGMAP      19
31#define SPEC_DATA_ARRAY      20
32#define SPEC_CHARACTER2      21
33#define SPEC_PARTICLE        22
34#define SPEC_EXTERNAL_LCACHE 23
35
36
37#define SPEC_SIGNATURE    "SPEC1.0"
38#define SPEC_SIG_SIZE     8
39
40#define SPEC_FLAG_LINK    1
41
42#define SPEC_SEARCH_INSIDE_OUTSIDE 1
43#define SPEC_SEARCH_OUTSIDE_INSIDE 2
44#define SPEC_SEARCH_INSIDE_ONLY    3
45
46/* file specs
47              8   signature
48              2   number entries
49                  [entries]
50              1      entry type
51              1      entry name length
52              X      entry name (with null terminator)
53              1      flags
54                     if (flags&LINK)
55              1        link filename length
56              X        link filename
57                     else
58              4        data size
59              4        offset
60*/
61
62void set_spec_main_file(char *filename, int search_order=SPEC_SEARCH_OUTSIDE_INSIDE);
63
64void set_filename_prefix(char *prefix);
65char *get_filename_prefix();
66void set_save_filename_prefix(char *prefix);
67char *get_save_filename_prefix();
68#define JFILE_CLONED 1
69
70class bFILE     // base file type which other files should be derived from (jFILE & NFS for now)
71{
72  protected :
73  unsigned char *rbuf,*wbuf;
74  unsigned long rbuf_start,rbuf_end,rbuf_size,
75                wbuf_end,wbuf_size;                // can't seek while writing!
76  int flush_writes();                             // returns 0 on failure, else # of bytes written
77
78  virtual int unbuffered_read(void *buf, size_t count)  = 0;
79  virtual int unbuffered_write(void *buf, size_t count) = 0;
80  virtual int unbuffered_tell()                         = 0;
81  virtual int unbuffered_seek(long offset, int whence)  = 0;   // whence=SEEK_SET, SEEK_CUR,
82                                                               // SEEK_END, ret=0=success
83  virtual int allow_read_buffering();
84  virtual int allow_write_buffering();
85  public :
86  bFILE();
87  virtual int open_failure() = 0;
88  int read(void *buf, size_t count);       // returns number of bytes read, calls unbuffer_read
89  int write(void *buf, size_t count);      // returns number of bytes written
90  int seek(long offset, int whence);       // whence=SEEK_SET, SEEK_CUR, SEEK_END, ret=0=success
91  int tell();
92  virtual int file_size() = 0;
93
94  virtual ~bFILE();
95
96
97  // these read and writes, allways read/write Intel endian-ness
98  unsigned short read_short();
99  unsigned long read_long();
100  unsigned char read_byte();
101  double read_double();
102  void write_short(unsigned short x);
103  void write_long(unsigned long x);
104  void write_byte(unsigned char x);
105  void write_double(double x);
106  void set_read_buffer_size(long size);
107} ;
108
109class jFILE : public bFILE     // this file type will use virtual opens inside of a spe
110{
111  char *fname;
112  char *tmp_write_name;
113  int access;
114  int fd,flags;
115  long start_offset,file_length;    // offset of file from actual file begining
116
117  long current_offset;  // current offset
118 
119public :
120        int get_fd() const { return fd; }
121
122  void open_internal(char *filename, char *mode, int flags);
123  void open_external(char *filename, char *mode, int flags);
124
125  jFILE(char *filename, char *access_string);      // same as fopen parameters
126  jFILE(FILE *file_pointer);                      // assumes fp is at begining of file
127  virtual int open_failure() { return fd<0; }
128  virtual int unbuffered_read(void *buf, size_t count);       // returns number of bytes read
129  virtual int unbuffered_write(void *buf, size_t count);     // returns number of bytes written
130  virtual int unbuffered_seek(long offset, int whence);      // whence=SEEK_SET, SEEK_CUR,
131                                                             // SEEK_END, ret=0=success
132  virtual int unbuffered_tell();
133  virtual int file_size() { return file_length; }
134  virtual ~jFILE();
135} ;
136
137class spec_entry
138{
139public :
140  char *name;
141  unsigned long size,offset;
142  unsigned char type;
143 
144  spec_entry(unsigned char spec_type,
145             char *object_name,
146             char *link_filename,
147             unsigned long data_size,
148             unsigned long data_offset)
149  { type=spec_type;
150    name=strcpy((char *)jmalloc(strlen(object_name)+1,"spec_entry::name"),object_name);
151    size=data_size; offset=data_offset;
152  } 
153  void print();
154  ~spec_entry() { if (name) jfree(name); }
155} ;
156
157
158class spec_directory
159{
160public :
161  void startup(bFILE *fp);
162
163  int total;
164  spec_entry **entries;
165  void *data;
166  long size;
167//  spec_directory(char *filename);  ;; not allowed anymore, user must construct file first!
168  spec_directory(FILE *fp);
169  spec_directory(bFILE *fp);
170  spec_directory();
171  spec_entry *find(char *name);
172  spec_entry *find(char *name, int type);
173  spec_entry *find(int type);
174  long find_number(char*name);
175  long find_number(int type);
176  void remove(spec_entry *e);
177  void add_by_hand(spec_entry *e);
178  void calc_offsets();
179  long data_start_offset();  // returns the firsyt offset past directory items
180  long data_end_offset();    // this should be the end of the file
181  long type_total(int type);
182  jFILE *write(char *filename);
183  int    write(bFILE *fp);
184  void print();
185  void delete_entries();   // if the directory was created by hand instead of by file
186  ~spec_directory();
187} ;
188
189/*jFILE *add_directory_entry(char *filename,
190                         unsigned short data_type,
191                         char *data_name,
192                         unsigned long data_size,
193                         char *link_filename=NULL);*/
194
195unsigned short read_short(FILE *fp);
196unsigned long read_long(FILE *fp);
197unsigned short read_other_long(FILE *fp);
198unsigned long read_other_short(FILE *fp);
199unsigned char read_byte(FILE *fp);
200
201void write_short(FILE *fp, unsigned short x);
202void write_long(FILE *fp, unsigned long x);
203void write_other_short(FILE *fp, unsigned short x);
204void write_other_long(FILE *fp, unsigned long x);
205void write_byte(FILE *fp, unsigned char x);
206
207void set_spec_main_file(char *filename, int Search_order);
208void set_file_opener(bFILE *(*open_fun)(char *, char *));
209void set_no_space_handler(void (*handle_fun)());
210bFILE *open_file(char *filename, char *mode);
211#endif
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