/[public]/psiconv/trunk/lib/psiconv/parse_page.c
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Diff of /psiconv/trunk/lib/psiconv/parse_page.c

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Revision 63 Revision 111
… …
16 along with this program; if not, write to the Free Software 16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18*/ 18*/
19 19
20#include "config.h" 20#include "config.h"
21#include "compat.h"
22
21#include <stdlib.h> 23#include <stdlib.h>
22#include <string.h> 24#include <string.h>
23 25
24#include "data.h"
25#include "parse_routines.h" 26#include "parse_routines.h"
27#include "error.h"
26 28
27int psiconv_parse_page_header(const psiconv_buffer buf,int lev,psiconv_u32 off, 29int psiconv_parse_page_header(const psiconv_buffer buf,int lev,psiconv_u32 off,
28 int *length,psiconv_page_header *result) 30 int *length,psiconv_page_header *result)
29{ 31{
30 int res = 0; 32 int res = 0;
31 int len = 0; 33 int len = 0;
32 int i,leng; 34 int i,leng,has_content;
33 psiconv_u32 temp; 35 psiconv_u32 temp;
34 36
35 psiconv_progress(lev+1,off,"Going to read a page header (or footer)"); 37 psiconv_progress(lev+1,off,"Going to read a page header (or footer)");
36 (*result) = malloc(sizeof(**result)); 38 if (!(*result = malloc(sizeof(**result))))
39 goto ERROR1;
37 40
38 psiconv_progress(lev+2,off+len, 41 psiconv_progress(lev+2,off+len,
39 "Going to read the first byte (0x01 expected)"); 42 "Going to read the has_content flag");
40 temp = psiconv_read_u8(buf,lev+2,off+len); 43 temp = psiconv_read_u8(buf,lev+2,off+len,&res);
44 if (res)
45 goto ERROR2;
41 if (temp != 0x01) { 46 if (temp == 0x00)
42 psiconv_warn(lev+2,off+len,"Page header first byte mismatch"); 47 has_content = 0;
43 psiconv_debug(lev+2,off+len,"First byte: read %02x, expected %02x", 48 else if (temp == 0x01)
44 temp,0x01); 49 has_content = 1;
45 res = -1; 50 else {
51 psiconv_warn(lev+2,off+len,
52 "Page header has_content flag unknown value (assumed default)");
53 psiconv_debug(lev+2,off+len,"Flag: %02x",temp);
54 has_content = 1;
46 } 55 }
56 psiconv_debug(lev+2,off+len,"Has_content flag: %02x",has_content);
47 len += 1; 57 len += 1;
48 58
49 psiconv_progress(lev+2,off+len,"Going to read displayed-on-first-page flag"); 59 psiconv_progress(lev+2,off+len,"Going to read displayed-on-first-page flag");
50 res |= psiconv_parse_bool(buf,lev+2,off+len,&leng,&(*result)->on_first_page); 60 if ((res = psiconv_parse_bool(buf,lev+2,off+len,&leng,
61 &(*result)->on_first_page)))
62 goto ERROR2;
51 len += leng; 63 len += leng;
52 64
53 psiconv_progress(lev+2,off+len,"Going to read three zero bytes"); 65 psiconv_progress(lev+2,off+len,"Going to read three zero bytes");
54 for (i = 0; i < 0x03; i++,len++) { 66 for (i = 0; i < 0x03; i++,len++) {
55 temp = psiconv_read_u8(buf,lev+2,off+len); 67 temp = psiconv_read_u8(buf,lev+2,off+len,&res);
68 if (res)
69 goto ERROR2;
56 if (temp != 0x00) { 70 if (temp != 0x00) {
57 psiconv_warn(lev+2,off+len, 71 psiconv_warn(lev+2,off+len,
58 "Page Header unknown value in zero bytes section"); 72 "Page Header unknown value in zero bytes section");
59 psiconv_debug(lev+2,off+len,"Byte %d: read %02x, expected %02x", 73 psiconv_debug(lev+2,off+len,"Byte %d: read %02x, expected %02x",
60 i,temp,0x00); 74 i,temp,0x00);
61 res = -1;
62 } 75 }
63 } 76 }
64 77
65 psiconv_progress(lev+2,off+len,"Going to read base paragraph layout"); 78 psiconv_progress(lev+2,off+len,"Going to read base paragraph layout");
66 (*result)->base_paragraph_layout = psiconv_basic_paragraph_layout(); 79 if (!((*result)->base_paragraph_layout = psiconv_basic_paragraph_layout()))
80 goto ERROR2;
81
82 if (has_content) {
67 res |= psiconv_parse_paragraph_layout_list(buf,lev+2,off+len,&leng, 83 if ((res = psiconv_parse_paragraph_layout_list(buf,lev+2,off+len,&leng,
68 (*result)->base_paragraph_layout); 84 (*result)->base_paragraph_layout)))
85 goto ERROR3;
69 len += leng; 86 len += leng;
87 }
70 88
71 psiconv_progress(lev+2,off+len,"Going to read base character layout"); 89 psiconv_progress(lev+2,off+len,"Going to read base character layout");
72 (*result)->base_character_layout = psiconv_basic_character_layout(); 90 if (!((*result)->base_character_layout = psiconv_basic_character_layout()))
91 goto ERROR3;
92 if (has_content) {
73 res |= psiconv_parse_character_layout_list(buf,lev+2,off+len,&leng, 93 if ((res = psiconv_parse_character_layout_list(buf,lev+2,off+len,&leng,
74 (*result)->base_character_layout); 94 (*result)->base_character_layout)))
95 goto ERROR4;
96 }
75 len += leng; 97 len += leng;
76 98
77 99
78 psiconv_progress(lev+2,off+len,"Going to read the TextEd section"); 100 psiconv_progress(lev+2,off+len,"Going to read the TextEd section");
101 if (has_content) {
79 res |= psiconv_parse_texted_section(buf,lev+2,off+len,&leng, 102 if ((res = psiconv_parse_texted_section(buf,lev+2,off+len,&leng,
80 &(*result)->text, 103 &(*result)->text,
81 (*result)->base_character_layout, 104 (*result)->base_character_layout,
82 (*result)->base_paragraph_layout); 105 (*result)->base_paragraph_layout)))
106 goto ERROR4;
83 len += leng; 107 len += leng;
108 }
84 109
85 if (length) 110 if (length)
86 *length = len; 111 *length = len;
87 112
88 psiconv_progress(lev+1,off+len-1,"End of page header" 113 psiconv_progress(lev+1,off+len-1,"End of page header"
89 "(total length: %08x", len); 114 "(total length: %08x", len);
90 115
91 return res; 116 return res;
117
118ERROR4:
119 psiconv_free_character_layout((*result)->base_character_layout);
120ERROR3:
121 psiconv_free_paragraph_layout((*result)->base_paragraph_layout);
122ERROR2:
123 free (*result);
124ERROR1:
125 psiconv_warn(lev+1,off,"Reading of Page Header failed");
126 if (length)
127 *length = 0;
128 if (!res)
129 return -PSICONV_E_NOMEM;
130 else
131 return res;
92} 132}
93 133
94int psiconv_parse_page_layout_section(const psiconv_buffer buf,int lev, 134int psiconv_parse_page_layout_section(const psiconv_buffer buf,int lev,
95 psiconv_u32 off, int *length, 135 psiconv_u32 off, int *length,
96 psiconv_page_layout_section *result) 136 psiconv_page_layout_section *result)
… …
99 int len = 0; 139 int len = 0;
100 int leng; 140 int leng;
101 psiconv_u32 temp; 141 psiconv_u32 temp;
102 142
103 psiconv_progress(lev+1,off,"Going to read the page layout section"); 143 psiconv_progress(lev+1,off,"Going to read the page layout section");
104 (*result) = malloc(sizeof(**result)); 144 if (!(*result = malloc(sizeof(**result))))
145 goto ERROR1;
105 146
106 psiconv_progress(lev+2,off+len,"Going to read first page number"); 147 psiconv_progress(lev+2,off+len,"Going to read first page number");
107 (*result)->first_page_nr = psiconv_read_u32(buf,lev+2,off+len); 148 (*result)->first_page_nr = psiconv_read_u32(buf,lev+2,off+len,&res);
149 if (res)
150 goto ERROR2;
108 psiconv_debug(lev+2,off+len,"First page: %d",(*result)->first_page_nr); 151 psiconv_debug(lev+2,off+len,"First page: %d",(*result)->first_page_nr);
109 len += 4; 152 len += 4;
110 153
111 psiconv_progress(lev+2,off+len,"Going to read header distance"); 154 psiconv_progress(lev+2,off+len,"Going to read header distance");
112 (*result)->header_dist = psiconv_read_length(buf,lev+2,off+len,&leng); 155 (*result)->header_dist = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
156 if (res)
157 goto ERROR2;
113 psiconv_debug(lev+2,off+len,"Header distance: %6.3f",(*result)->header_dist); 158 psiconv_debug(lev+2,off+len,"Header distance: %6.3f",(*result)->header_dist);
114 len += leng; 159 len += leng;
115 160
116 psiconv_progress(lev+2,off+len,"Going to read footer distance"); 161 psiconv_progress(lev+2,off+len,"Going to read footer distance");
117 (*result)->footer_dist = psiconv_read_length(buf,lev+2,off+len,&leng); 162 (*result)->footer_dist = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
163 if (res)
164 goto ERROR2;
118 psiconv_debug(lev+2,off+len,"Footer distance: %6.3f",(*result)->footer_dist); 165 psiconv_debug(lev+2,off+len,"Footer distance: %6.3f",(*result)->footer_dist);
119 len += leng; 166 len += leng;
120 167
121 psiconv_progress(lev+2,off+len,"Going to read the left margin"); 168 psiconv_progress(lev+2,off+len,"Going to read the left margin");
122 (*result)->left_margin = psiconv_read_length(buf,lev+2,off+len,&leng); 169 (*result)->left_margin = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
170 if (res)
171 goto ERROR2;
123 psiconv_debug(lev+2,off+len,"Left margin: %6.3f",(*result)->left_margin); 172 psiconv_debug(lev+2,off+len,"Left margin: %6.3f",(*result)->left_margin);
124 len += leng; 173 len += leng;
125 174
126 psiconv_progress(lev+2,off+len,"Going read the to right margin"); 175 psiconv_progress(lev+2,off+len,"Going read the to right margin");
127 (*result)->right_margin = psiconv_read_length(buf,lev+2,off+len,&leng); 176 (*result)->right_margin = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
177 if (res)
178 goto ERROR2;
128 psiconv_debug(lev+2,off+len,"Right margin: %6.3f",(*result)->right_margin); 179 psiconv_debug(lev+2,off+len,"Right margin: %6.3f",(*result)->right_margin);
129 len += leng; 180 len += leng;
130 181
131 psiconv_progress(lev+2,off+len,"Going to read the top margin"); 182 psiconv_progress(lev+2,off+len,"Going to read the top margin");
132 (*result)->top_margin = psiconv_read_length(buf,lev+2,off+len,&leng); 183 (*result)->top_margin = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
184 if (res)
185 goto ERROR2;
133 psiconv_debug(lev+2,off+len,"Top margin: %6.3f",(*result)->top_margin); 186 psiconv_debug(lev+2,off+len,"Top margin: %6.3f",(*result)->top_margin);
134 len += leng; 187 len += leng;
135 188
136 psiconv_progress(lev+2,off+len,"Going to read the bottom margin"); 189 psiconv_progress(lev+2,off+len,"Going to read the bottom margin");
137 (*result)->bottom_margin = psiconv_read_length(buf,lev+2,off+len,&leng); 190 (*result)->bottom_margin = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
191 if (res)
192 goto ERROR2;
138 psiconv_debug(lev+2,off+len,"Bottom margin: %6.3f",(*result)->bottom_margin); 193 psiconv_debug(lev+2,off+len,"Bottom margin: %6.3f",(*result)->bottom_margin);
139 len += leng; 194 len += leng;
140 195
141 psiconv_progress(lev+2,off+len,"Going to read the header"); 196 psiconv_progress(lev+2,off+len,"Going to read the header");
142 res |= psiconv_parse_page_header(buf,lev+2,off+len,&leng,&(*result)->header); 197 if ((res = psiconv_parse_page_header(buf,lev+2,off+len,&leng,
198 &(*result)->header)))
199 goto ERROR2;
143 len += leng; 200 len += leng;
144 201
145 psiconv_progress(lev+2,off+len,"Going to read the footer"); 202 psiconv_progress(lev+2,off+len,"Going to read the footer");
146 res |= psiconv_parse_page_header(buf,lev+2,off+len,&leng,&(*result)->footer); 203 if ((res = psiconv_parse_page_header(buf,lev+2,off+len,&leng,
204 &(*result)->footer)))
205 goto ERROR3;
147 len += leng; 206 len += leng;
148 207
149 psiconv_progress(lev+2,off+len,"Going to read page dimensions id"); 208 psiconv_progress(lev+2,off+len,"Going to read page dimensions id");
150 temp = psiconv_read_u32(buf,lev+2,off+len); 209 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
210 if (res)
211 goto ERROR4;
151 if (temp != PSICONV_ID_PAGE_DIMENSIONS) { 212 if ((temp != PSICONV_ID_PAGE_DIMENSIONS1) &&
213 (temp != PSICONV_ID_PAGE_DIMENSIONS2)) {
152 psiconv_warn(lev+2,off+len, 214 psiconv_warn(lev+2,off+len,
153 "Page layout section page dimensions marker not found"); 215 "Page layout section page dimensions marker not found");
154 psiconv_debug(lev+2,off+len, 216 psiconv_debug(lev+2,off+len,
155 "Page dimensions marker: read %08x, expected %08x",temp, 217 "Page dimensions marker: read %08x, expected %08x or %08x",
218 temp, PSICONV_ID_PAGE_DIMENSIONS1,
156 PSICONV_ID_PAGE_DIMENSIONS); 219 PSICONV_ID_PAGE_DIMENSIONS2);
157 res = -1;
158 } 220 }
221 len += 4;
159 222
160 psiconv_progress(lev+2,off+len,"Going to read the page width"); 223 psiconv_progress(lev+2,off+len,"Going to read the page width");
161 (*result)->page_width = psiconv_read_length(buf,lev+2,off+len,&leng); 224 (*result)->page_width = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
225 if (res)
226 goto ERROR4;
162 psiconv_debug(lev+2,off+len,"Page width: %6.3f",(*result)->page_width); 227 psiconv_debug(lev+2,off+len,"Page width: %6.3f",(*result)->page_width);
163 len += leng; 228 len += leng;
164 229
165 psiconv_progress(lev+2,off+len,"Going to read the page height"); 230 psiconv_progress(lev+2,off+len,"Going to read the page height");
166 (*result)->page_height = psiconv_read_length(buf,lev+2,off+len,&leng); 231 (*result)->page_height = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
232 if (res)
233 goto ERROR4;
167 psiconv_debug(lev+2,off+len,"Page height: %6.3f",(*result)->page_height); 234 psiconv_debug(lev+2,off+len,"Page height: %6.3f",(*result)->page_height);
168 len += leng; 235 len += leng;
236
237 psiconv_progress(lev+2,off+len,"Going to read page portrait/landscape");
238 if ((res = psiconv_parse_bool(buf,lev+2,off+len,&leng,&(*result)->landscape)))
239 goto ERROR4;
240 psiconv_debug(lev+2,off+len,"Landscape: %d",(*result)->landscape);
241 len += leng;
242
169 243
170 if (length) 244 if (length)
171 *length = len; 245 *length = len;
172 246
173 psiconv_progress(lev,off+len-1,"End of page section (total length: %08x)", 247 psiconv_progress(lev,off+len-1,"End of page section (total length: %08x)",
174 len); 248 len);
175 249
176 return res; 250 return res;
251
252ERROR4:
253 psiconv_free_page_header((*result)->footer);
254ERROR3:
255 psiconv_free_page_header((*result)->header);
256ERROR2:
257 free (*result);
258ERROR1:
259 psiconv_warn(lev+1,off,"Reading of Page Section failed");
260 if (length)
261 *length = 0;
262 if (!res)
263 return -PSICONV_E_NOMEM;
264 else
265 return res;
177} 266}
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