lib/psiconv/generate_simple.c

/*
    generate_simple.c - Part of psiconv, a PSION 5 file formats converter
    Copyright (c) 2000  Frodo Looijaard <frodol@dds.nl>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "config.h"
#include "compat.h"

#include "generate_routines.h"
#include "error.h"

int psiconv_write_u8(psiconv_buffer buf,const psiconv_u8 value)
{
  return psiconv_buffer_add(buf,value);
}

int psiconv_write_u16(psiconv_buffer buf,const psiconv_u16 value)
{
  int res;
  if ((res = psiconv_buffer_add(buf,value & 0xff))) 
        return res;
  return psiconv_buffer_add(buf,(value & 0xff00) >> 8);
}

int psiconv_write_u32(psiconv_buffer buf,const psiconv_u32 value)
{
  int res;
  if ((res = psiconv_buffer_add(buf,value & 0xff))) 
        return res;
  if ((res = psiconv_buffer_add(buf,(value & 0xff00) >> 8))) 
        return res;
  if ((res = psiconv_buffer_add(buf,(value & 0xff0000) >> 16))) 
        return res;
  return psiconv_buffer_add(buf,(value & 0xff000000) >> 24);
}

int psiconv_write_S(psiconv_buffer buf, const psiconv_u32 value)
{
  if (value < 0x40) 
    return psiconv_write_u8(buf,value * 4 + 2);
  else if (value < 0x2000) 
    return psiconv_write_u16(buf,value * 8 + 3);
  else {
    psiconv_warn(0,psiconv_buffer_length(buf),
                 "Don't know how to write S value larger than 0x2000 "
                 "(trying %x)",value);
    return -PSICONV_E_GENERATE;
  }
}

int psiconv_write_X(psiconv_buffer buf, const psiconv_u32 value)
{
  if (value < 0x80) 
    return psiconv_write_u8(buf,value * 2);
  else if (value < 0x4000) 
    return psiconv_write_u16(buf,value * 4 + 1);
  else if (value < 0x20000000) 
    return psiconv_write_u16(buf,value * 8 + 3);
  else {
    psiconv_warn(0,psiconv_buffer_length(buf),
                 "Don't know how to write X value larger than 0x20000000 "
                 "(trying %x)",value);
    return -PSICONV_E_GENERATE;
  }
}

int psiconv_write_offset(psiconv_buffer buf, const psiconv_u32 value)
{
  return psiconv_write_u32(buf,value + psiconv_buffer_base_offset(buf));
}

int psiconv_write_length(psiconv_buffer buf, const psiconv_length_t value)
{
  return psiconv_write_u32(buf,value * (1440.0/2.54) + 0.5);
}

int psiconv_write_size(psiconv_buffer buf, psiconv_size_t value)
{
  return psiconv_write_u32(buf,value * 20.0 + 0.5);
}

int psiconv_write_bool(psiconv_buffer buf, const psiconv_bool_t value)
{
  if ((value != psiconv_bool_true) && (value != psiconv_bool_false)) 
    psiconv_warn(0,psiconv_buffer_length(buf),
                 "Boolean has non-enum value (found %d)",value);
  return psiconv_write_u8(buf,value == psiconv_bool_false?0:1);
}

int psiconv_write_string(psiconv_buffer buf, const psiconv_string_t value)
{
  int res,i;
  if (!value) {
    psiconv_warn(0,psiconv_buffer_length(buf),
                 "NULL string");
    return -PSICONV_E_GENERATE;
  }
  if ((res = psiconv_write_S(buf,strlen(value))))
    return res;
  for (i = 0; i < strlen(value); i++) 
    if ((res = psiconv_write_u8(buf,value[i])))
      return res;
  return -PSICONV_E_OK;
}
1	frodo	71	/*
2			generate_simple.c - Part of psiconv, a PSION 5 file formats converter
3			Copyright (c) 2000 Frodo Looijaard <frodol@dds.nl>
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; either version 2 of the License, or
8			(at your option) any later version.
9
10			This program is distributed in the hope that it will be useful,
11			but WITHOUT ANY WARRANTY; without even the implied warranty of
12			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13			GNU General Public License for more details.
14
15			You should have received a copy of the GNU General Public License
16			along with this program; if not, write to the Free Software
17			Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18			*/
19
20			#include "config.h"
21			#include "compat.h"
22
23			#include "generate_routines.h"
24			#include "error.h"
25
26	frodo	72	int psiconv_write_u8(psiconv_buffer buf,const psiconv_u8 value)
27	frodo	71	{
28	frodo	79	return psiconv_buffer_add(buf,value);
29	frodo	71	}
30
31	frodo	72	int psiconv_write_u16(psiconv_buffer buf,const psiconv_u16 value)
32	frodo	71	{
33			int res;
34	frodo	79	if ((res = psiconv_buffer_add(buf,value & 0xff)))
35	frodo	71	return res;
36	frodo	79	return psiconv_buffer_add(buf,(value & 0xff00) >> 8);
37	frodo	71	}
38
39	frodo	72	int psiconv_write_u32(psiconv_buffer buf,const psiconv_u32 value)
40	frodo	71	{
41			int res;
42	frodo	79	if ((res = psiconv_buffer_add(buf,value & 0xff)))
43	frodo	71	return res;
44	frodo	79	if ((res = psiconv_buffer_add(buf,(value & 0xff00) >> 8)))
45	frodo	71	return res;
46	frodo	79	if ((res = psiconv_buffer_add(buf,(value & 0xff0000) >> 16)))
47	frodo	71	return res;
48	frodo	79	return psiconv_buffer_add(buf,(value & 0xff000000) >> 24);
49	frodo	71	}
50
51	frodo	72	int psiconv_write_S(psiconv_buffer buf, const psiconv_u32 value)
52	frodo	71	{
53			if (value < 0x40)
54			return psiconv_write_u8(buf,value * 4 + 2);
55			else if (value < 0x2000)
56			return psiconv_write_u16(buf,value * 8 + 3);
57			else {
58	frodo	79	psiconv_warn(0,psiconv_buffer_length(buf),
59	frodo	71	"Don't know how to write S value larger than 0x2000 "
60			"(trying %x)",value);
61			return -PSICONV_E_GENERATE;
62			}
63			}
64
65	frodo	72	int psiconv_write_X(psiconv_buffer buf, const psiconv_u32 value)
66	frodo	71	{
67			if (value < 0x80)
68			return psiconv_write_u8(buf,value * 2);
69			else if (value < 0x4000)
70			return psiconv_write_u16(buf,value * 4 + 1);
71			else if (value < 0x20000000)
72			return psiconv_write_u16(buf,value * 8 + 3);
73			else {
74	frodo	79	psiconv_warn(0,psiconv_buffer_length(buf),
75	frodo	71	"Don't know how to write X value larger than 0x20000000 "
76			"(trying %x)",value);
77			return -PSICONV_E_GENERATE;
78			}
79			}
80
81	frodo	79	int psiconv_write_offset(psiconv_buffer buf, const psiconv_u32 value)
82			{
83			return psiconv_write_u32(buf,value + psiconv_buffer_base_offset(buf));
84			}
85
86	frodo	72	int psiconv_write_length(psiconv_buffer buf, const psiconv_length_t value)
87	frodo	71	{
88			return psiconv_write_u32(buf,value * (1440.0/2.54) + 0.5);
89			}
90
91			int psiconv_write_size(psiconv_buffer buf, psiconv_size_t value)
92			{
93			return psiconv_write_u32(buf,value * 20.0 + 0.5);
94			}
95
96	frodo	72	int psiconv_write_bool(psiconv_buffer buf, const psiconv_bool_t value)
97	frodo	71	{
98	frodo	72	if ((value != psiconv_bool_true) && (value != psiconv_bool_false))
99	frodo	79	psiconv_warn(0,psiconv_buffer_length(buf),
100	frodo	72	"Boolean has non-enum value (found %d)",value);
101			return psiconv_write_u8(buf,value == psiconv_bool_false?0:1);
102	frodo	71	}
103
104	frodo	72	int psiconv_write_string(psiconv_buffer buf, const psiconv_string_t value)
105	frodo	71	{
106			int res,i;
107	frodo	72	if (!value) {
108	frodo	79	psiconv_warn(0,psiconv_buffer_length(buf),
109	frodo	72	"NULL string");
110			return -PSICONV_E_GENERATE;
111			}
112	frodo	71	if ((res = psiconv_write_S(buf,strlen(value))))
113			return res;
114			for (i = 0; i < strlen(value); i++)
115			if ((res = psiconv_write_u8(buf,value[i])))
116			return res;
117			return -PSICONV_E_OK;
118			}
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