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

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Revision 11 Revision 15
… …
20#include "config.h" 20#include "config.h"
21#include <stdlib.h> 21#include <stdlib.h>
22 22
23#include "data.h" 23#include "data.h"
24#include "parse_routines.h" 24#include "parse_routines.h"
25
26int psiconv_parse_mbm_jumptable_section(const psiconv_buffer buf,int lev,
27 psiconv_u32 off, int *length,
28 psiconv_mbm_jumptable_section *result)
29{
30 int res = 0;
31 int len = 0;
32 psiconv_u32 listlen,temp;
33 int i;
34
35 psiconv_progress(lev+1,off+len,"Going to read the mbm jumptable section");
36 (*result) = psiconv_list_new(sizeof(psiconv_u32));
37
38 psiconv_progress(lev+2,off+len,"Going to read the list length");
39 listlen = psiconv_read_u32(buf,lev+2,off+len);
40 psiconv_debug(lev+2,off+len,"List length: %08x",listlen);
41 len += 4;
42
43 psiconv_progress(lev+2,off+len,"Going to read the list");
44 for (i = 0; i < listlen; i++) {
45 temp = psiconv_read_u32(buf,lev+2,off+len);
46 psiconv_list_add(*result,&temp);
47 psiconv_debug(lev+3,off+len,"Offset: %08x",temp);
48 len += 4;
49 }
50
51 if (length)
52 *length = len;
53
54 psiconv_progress(lev+1,off+len-1,"End of mbm jumptable section "
55 "(total length: %08x)", len);
56
57 return res;
58}
25 59
26int psiconv_parse_paint_data_section(const psiconv_buffer buf,int lev, 60int psiconv_parse_paint_data_section(const psiconv_buffer buf,int lev,
27 psiconv_u32 off, int *length, 61 psiconv_u32 off, int *length,
28 psiconv_paint_data_section *result) 62 psiconv_paint_data_section *result)
29{ 63{
30 int res = 0; 64 int res = 0;
31 int len = 0; 65 int len = 0;
66 int read_err = 0;
32 psiconv_u32 size,offset,picsize,temp,datasize,pixelnr,datanr; 67 psiconv_u32 size,offset,picsize,temp,datasize,pixelnr,datanr,linelen;
33 psiconv_u8 marker; 68 psiconv_u8 marker;
34 int i; 69 int i;
35 70
36 psiconv_progress(lev+1,off,"Going to read a paint data section"); 71 psiconv_progress(lev+1,off,"Going to read a paint data section");
37 (*result) = malloc(sizeof(**result)); 72 (*result) = malloc(sizeof(**result));
… …
41 psiconv_debug(lev+2,off+len,"Section size: %08x",size); 76 psiconv_debug(lev+2,off+len,"Section size: %08x",size);
42 len += 4; 77 len += 4;
43 78
44 psiconv_progress(lev+2,off+len,"Going to read pixel data offset"); 79 psiconv_progress(lev+2,off+len,"Going to read pixel data offset");
45 offset = psiconv_read_u32(buf,lev+2,off+len); 80 offset = psiconv_read_u32(buf,lev+2,off+len);
46 if (size != 0x28) { 81 if (offset != 0x28) {
47 psiconv_warn(lev+2,off+len, 82 psiconv_warn(lev+2,off+len,
48 "Paint data section data offset has unexpected value"); 83 "Paint data section data offset has unexpected value");
49 psiconv_debug(lev+2,off+len, 84 psiconv_debug(lev+2,off+len,
50 "Data offset: read %08x, expected %08x",offset,0x28); 85 "Data offset: read %08x, expected %08x",offset,0x28);
86 res = -1;
51 } 87 }
52 len += 4; 88 len += 4;
53 89
54 psiconv_progress(lev+2,off+len,"Going to read picture X size"); 90 psiconv_progress(lev+2,off+len,"Going to read picture X size");
55 (*result)->xsize = psiconv_read_u32(buf,lev+2,off+len); 91 (*result)->xsize = psiconv_read_u32(buf,lev+2,off+len);
… …
59 psiconv_progress(lev+2,off+len,"Going to read picture Y size"); 95 psiconv_progress(lev+2,off+len,"Going to read picture Y size");
60 (*result)->ysize = psiconv_read_u32(buf,lev+2,off+len); 96 (*result)->ysize = psiconv_read_u32(buf,lev+2,off+len);
61 psiconv_debug(lev+2,off+len,"Picture Y size: %08x:",(*result)->ysize); 97 psiconv_debug(lev+2,off+len,"Picture Y size: %08x:",(*result)->ysize);
62 len += 4; 98 len += 4;
63 99
64 picsize = (*result)->ysize * (*result)->xsize; 100 picsize = (*result)->ysize * (*result)->xsize * 2;
101 linelen = (*result)->xsize;
65 102
66 psiconv_progress(lev+2,off+len,"Going to read 6 unused longs"); 103 psiconv_progress(lev+2,off+len,"Going to read 6 unknown longs");
67 for (i = 0 ; i < 6; i++) { 104 for (i = 0 ; i < 6; i++) {
68 temp = psiconv_read_u32(buf,lev+2,off+len); 105 temp = psiconv_read_u32(buf,lev+2,off+len);
69 if (temp != 0x00) { 106 if (temp != (i==2?0x02:i==5?0x01:0x00)) {
70 psiconv_warn(lev+2,off+len, 107 psiconv_warn(lev+2,off+len,
71 "Paint data section prologue has unknown values"); 108 "Paint data section prologue has unknown values");
72 psiconv_debug(lev+2,off+len, 109 psiconv_debug(lev+2,off+len,
73 "offset %02x: read %08x, expected %08x",i,temp,0x00); 110 "offset %02x: read %08x, expected %08x",i,temp,
111 i==2?0x02:i==5?0x01:0x00);
112 res = -1;
74 } 113 }
75 len += 4; 114 len += 4;
76 } 115 }
77 116
78 (*result)->red = malloc(sizeof(float) * picsize); 117 (*result)->red = malloc(sizeof(float) * picsize);
… …
90 "Pixelnr %08x, Datanr %08x: Read marker %02x", 129 "Pixelnr %08x, Datanr %08x: Read marker %02x",
91 pixelnr,datanr,marker); 130 pixelnr,datanr,marker);
92 datanr ++; 131 datanr ++;
93 if (marker >= 0x80) { 132 if (marker >= 0x80) {
94 /* 0x100 - marker bytes of data follow */ 133 /* 0x100 - marker bytes of data follow */
95 if ((0x100 - marker + datanr > datasize) || 134 for (i = 0; i < 0x100-marker; i++,datanr++) {
96 ((0x100 - marker) * 4 + pixelnr > picsize)) { 135 if ((picsize == pixelnr) || (datasize == datanr)) {
136 psiconv_warn(lev+3,off+len+datanr,"Corrupted picture data");
137 psiconv_debug(lev+3,off+len+datanr,
138 "Picsize: %08x, Datasize: %08x, Pixelnr: %08x,"
139 "Datanr: %08x, marker: %02x",picsize,datasize,pixelnr,
140 datanr,marker);
141 read_err = 1;
142 res = -1;
143 break;
144 }
145 temp = psiconv_read_u8(buf,lev+3,off+len+datanr);
146 (*result)->red[pixelnr] =
147 (*result)->green[pixelnr] =
148 (*result)->blue[pixelnr] =
149 (temp & 0x03) * (1.0/3.0);
150 pixelnr ++;
151 if (pixelnr % linelen == 0)
152 continue;
153 (*result)->red[pixelnr] =
154 (*result)->green[pixelnr] =
155 (*result)->blue[pixelnr] =
156 ((temp >> 2) & 0x03) * (1.0/3.0);
157 pixelnr ++;
158 if (pixelnr % linelen == 0)
159 continue;
160 (*result)->red[pixelnr] =
161 (*result)->green[pixelnr] =
162 (*result)->blue[pixelnr] =
163 ((temp >> 4) & 0x03) * (1.0/3.0);
164 pixelnr ++;
165 if (pixelnr % linelen == 0)
166 continue;
167 (*result)->red[pixelnr] =
168 (*result)->green[pixelnr] =
169 (*result)->blue[pixelnr] =
170 ((temp >> 6) & 0x03) * (1.0/3.0);
171 }
172 } else { /* marker < 0x080 */
173 if (datasize == datanr) {
97 psiconv_warn(lev+3,off+len+datanr,"Corrupted picture data"); 174 psiconv_warn(lev+3,off+len+datanr,"Corrupted picture data");
98 psiconv_debug(lev+3,off+len+datanr, 175 psiconv_debug(lev+3,off+len+datanr,
99 "Picsize: %08x, Datasize: %08x, Pixelnr: %08x," 176 "Picsize: %08x, Datasize: %08x, Pixelnr: %08x,"
100 "Datanr: %08x, marker: %02x",picsize,datasize,pixelnr, 177 "Datanr: %08x, marker: %02x",picsize,datasize,pixelnr,
101 datanr,marker); 178 datanr,marker);
179 read_err = 1;
180 res = -1;
102 } else { 181 } else {
103 for (i = 0; i < 0x100-marker; i++) {
104 temp = psiconv_read_u8(buf,lev+3,off+len+datanr+i); 182 temp = psiconv_read_u8(buf,lev+3,off+len+datanr);
183 for (i = 0; i <= marker; i++) {
184 if (picsize == pixelnr) {
185 psiconv_warn(lev+3,off+len+datanr,"Corrupted picture data");
186 psiconv_debug(lev+3,off+len+datanr,
187 "Picsize: %08x, Datasize: %08x, Pixelnr: %08x,"
188 "Datanr: %08x, marker: %02x",picsize,datasize,pixelnr,
189 datanr,marker);
190 read_err = 1;
191 res = -1;
192 break;
193 }
105 (*result)->red[pixelnr + i*4] = 194 (*result)->red[pixelnr] =
106 (*result)->green[pixelnr + i*4] = 195 (*result)->green[pixelnr] =
107 (*result)->blue[pixelnr + i*4] = 196 (*result)->blue[pixelnr] =
108 (temp & 0x03) * (1.0/3.0); 197 (temp & 0x03) * (1.0/3.0);
198 pixelnr ++;
199 if (pixelnr % linelen == 0)
200 continue;
109 (*result)->red[pixelnr + i*4 + 1] = 201 (*result)->red[pixelnr] =
110 (*result)->green[pixelnr + i*4 +1] = 202 (*result)->green[pixelnr] =
111 (*result)->blue[pixelnr + i*4 + 1] = 203 (*result)->blue[pixelnr] =
112 ((temp >> 2) & 0x03) * (1.0/3.0); 204 ((temp >> 2) & 0x03) * (1.0/3.0);
205 pixelnr ++;
206 if (pixelnr % linelen == 0)
207 continue;
113 (*result)->red[pixelnr + i*4 + 2] = 208 (*result)->red[pixelnr] =
114 (*result)->green[pixelnr + i*4 +2] = 209 (*result)->green[pixelnr] =
115 (*result)->blue[pixelnr + i*4 + 2] = 210 (*result)->blue[pixelnr] =
116 ((temp >> 4) & 0x03) * (1.0/3.0); 211 ((temp >> 4) & 0x03) * (1.0/3.0);
212 pixelnr ++;
213 if (pixelnr % linelen == 0)
214 continue;
117 (*result)->red[pixelnr + i*4 + 3] = 215 (*result)->red[pixelnr] =
118 (*result)->green[pixelnr + i*4 +3] = 216 (*result)->green[pixelnr] =
119 (*result)->blue[pixelnr + i*4 + 3] = 217 (*result)->blue[pixelnr] =
120 ((temp >> 6) & 0x03) * (1.0/3.0); 218 ((temp >> 6) & 0x03) * (1.0/3.0);
219 pixelnr ++;
121 } 220 }
122 } 221 }
123 pixelnr += (0x100 - marker) * 4;
124 datanr += (0x100 - marker);
125 } else { /* marker < 0x080 */
126 if ((datanr + 1 > datasize) ||
127 (marker * 4 + pixelnr > picsize)) {
128 psiconv_warn(lev+3,off+len+datanr,"Corrupted picture data");
129 psiconv_debug(lev+3,off+len+datanr,
130 "Picsize: %08x, Datasize: %08x, Pixelnr: %08x,"
131 "Datanr: %08x, marker: %02x",picsize,datasize,pixelnr,
132 datanr,marker);
133 } else {
134 temp = psiconv_read_u8(buf,lev+3,off+len+datanr);
135 for (i = 0; i < marker; i++) {
136 (*result)->red[pixelnr + i*4] =
137 (*result)->green[pixelnr + i*4] =
138 (*result)->blue[pixelnr + i*4] =
139 (temp & 0x03) * (1.0/3.0);
140 (*result)->red[pixelnr + i*4 + 1] =
141 (*result)->green[pixelnr + i*4 +1] =
142 (*result)->blue[pixelnr + i*4 + 1] =
143 ((temp >> 2) & 0x03) * (1.0/3.0);
144 (*result)->red[pixelnr + i*4 + 2] =
145 (*result)->green[pixelnr + i*4 +2] =
146 (*result)->blue[pixelnr + i*4 + 2] =
147 ((temp >> 4) & 0x03) * (1.0/3.0);
148 (*result)->red[pixelnr + i*4 + 3] =
149 (*result)->green[pixelnr + i*4 +3] =
150 (*result)->blue[pixelnr + i*4 + 3] =
151 ((temp >> 6) & 0x03) * (1.0/3.0);
152 }
153 }
154 pixelnr += marker * 4;
155 datanr += 1; 222 datanr += 1;
156 } 223 }
157 } 224 }
225 if (!read_err && ((datanr != datasize) || (pixelnr != picsize))) {
226 psiconv_warn(lev+2,off+len,"Corrupted picture data!");
227 psiconv_debug(lev+3,off+len+datanr,
228 "Picsize: %08x, Datasize: %08x, Pixelnr: %08x,"
229 "Datanr: %08x",picsize,datasize,pixelnr,datanr);
230 res = -1;
231 }
232
158 len += datanr; 233 len += datanr;
159 234
160 if (length) 235 if (length)
161 *length = len; 236 *length = len;
162 237
163 psiconv_progress(lev+1,off+len-1,"End of paint data section " 238 psiconv_progress(lev+1,off+len-1,"End of paint data section "
164 "(total length: %08x", len); 239 "(total length: %08x)", len);
165 240
166 return res; 241 return res;
167} 242}
168 243
169 244
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