1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
|
#include "evas_common.h"
#include "evas_private.h"
#include <Edb.h>
#include <zlib.h>
#define SWAP32(x) (x) = ((((x) & 0x000000ff ) << 24) | (((x) & 0x0000ff00 ) << 8) | (((x) & 0x00ff0000 ) >> 8) | (((x) & 0xff000000 ) >> 24))
static Eina_Bool evas_image_load_file_head_edb(Image_Entry *ie, const char *file, const char *key, int *error) EINA_ARG_NONNULL(1, 2, 4);
static Eina_Bool evas_image_load_file_data_edb(Image_Entry *ie, const char *file, const char *key, int *error) EINA_ARG_NONNULL(1, 2, 4);
static Evas_Image_Load_Func evas_image_load_edb_func =
{
EINA_TRUE,
evas_image_load_file_head_edb,
evas_image_load_file_data_edb,
NULL
};
static Eina_Bool
evas_image_load_file_head_edb(Image_Entry *ie, const char *file, const char *key, int *error)
{
int w, h, alpha, compression, size;
E_DB_File *db;
DATA32 *ret;
DATA32 header[8];
if (!key)
{
*error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
return EINA_FALSE;
}
db = e_db_open_read((char *)file);
if (!db)
{
*error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
return EINA_FALSE;
}
ret = e_db_data_get(db, (char *)key, &size);
if (!ret)
{
e_db_close(db);
*error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
return EINA_FALSE;
}
if (size < 32)
{
free(ret);
e_db_close(db);
*error = EVAS_LOAD_ERROR_CORRUPT_FILE;
return EINA_FALSE;
}
memcpy(header, ret, 32);
#ifdef WORDS_BIGENDIAN
{
int i;
for (i = 0; i < 8; i++) SWAP32(header[i]);
}
#endif
if (header[0] != 0xac1dfeed)
{
free(ret);
e_db_close(db);
*error = EVAS_LOAD_ERROR_CORRUPT_FILE;
return EINA_FALSE;
}
w = header[1];
h = header[2];
if ((w < 1) || (h < 1) || (w > IMG_MAX_SIZE) || (h > IMG_MAX_SIZE) ||
IMG_TOO_BIG(w, h))
{
free(ret);
e_db_close(db);
if (IMG_TOO_BIG(w, h))
*error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
else
*error = EVAS_LOAD_ERROR_GENERIC;
return EINA_FALSE;
}
alpha = header[3];
compression = header[4];
if ((compression == 0) && (size < ((w * h * 4) + 32)))
{
free(ret);
e_db_close(db);
*error = EVAS_LOAD_ERROR_GENERIC;
return EINA_FALSE;
}
if (alpha) ie->flags.alpha = 1;
ie->w = w;
ie->h = h;
free(ret);
e_db_close(db);
*error = EVAS_LOAD_ERROR_NONE;
return EINA_TRUE;
}
static Eina_Bool
evas_image_load_file_data_edb(Image_Entry *ie, const char *file, const char *key, int *error)
{
int w, h, alpha, compression, size;
E_DB_File *db;
DATA32 *ret;
DATA32 *body;
DATA32 *surface;
DATA32 header[8];
if (!key)
{
*error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
return EINA_FALSE;
}
db = e_db_open_read((char *)file);
if (!db)
{
*error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
return EINA_FALSE;
}
ret = e_db_data_get(db, (char *)key, &size);
if (!ret)
{
e_db_close(db);
*error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
return EINA_FALSE;
}
if (size < 32)
{
free(ret);
e_db_close(db);
*error = EVAS_LOAD_ERROR_CORRUPT_FILE;
return EINA_FALSE;
}
memcpy(header, ret, 32);
#ifdef WORDS_BIGENDIAN
{
int i;
for (i = 0; i < 8; i++) SWAP32(header[i]);
}
#endif
if (header[0] != 0xac1dfeed)
{
free(ret);
e_db_close(db);
*error = EVAS_LOAD_ERROR_CORRUPT_FILE;
return EINA_FALSE;
}
w = header[1];
h = header[2];
if ((w < 1) || (h < 1) || (w > IMG_MAX_SIZE) || (h > IMG_MAX_SIZE) ||
IMG_TOO_BIG(w, h))
{
free(ret);
e_db_close(db);
if (IMG_TOO_BIG(w, h))
*error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
else
*error = EVAS_LOAD_ERROR_GENERIC;
return EINA_FALSE;
}
alpha = header[3];
compression = header[4];
if ((compression == 0) && (size < ((w * h * 4) + 32)))
{
free(ret);
e_db_close(db);
*error = EVAS_LOAD_ERROR_GENERIC;
return EINA_FALSE;
}
if (alpha) ie->flags.alpha = 1;
body = &(ret[8]);
evas_cache_image_surface_alloc(ie, w, h);
surface = evas_cache_image_pixels(ie);
if (!surface)
{
free(ret);
e_db_close(db);
*error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
return EINA_FALSE;
}
if (!compression)
{
#ifdef WORDS_BIGENDIAN
{
int x;
memcpy(surface, body, w * h * sizeof(DATA32));
for (x = 0; x < (w * h); x++) SWAP32(surface[x]);
}
#else
memcpy(surface, body, w * h * sizeof(DATA32));
#endif
}
else
{
uLongf dlen;
dlen = w * h * sizeof(DATA32);
uncompress((Bytef *)surface, &dlen, (Bytef *)body,
(uLongf)(size - 32));
#ifdef WORDS_BIGENDIAN
{
int x;
for (x = 0; x < (w * h); x++) SWAP32(surface[x]);
}
#endif
}
evas_common_image_premul(ie);
free(ret);
e_db_close(db);
*error = EVAS_LOAD_ERROR_NONE;
return EINA_TRUE;
}
static int
module_open(Evas_Module *em)
{
if (!em) return 0;
em->functions = (void *)(&evas_image_load_edb_func);
return 1;
}
static void
module_close(Evas_Module *em)
{
}
static Evas_Module_Api evas_modapi =
{
EVAS_MODULE_API_VERSION,
"edb",
"none",
{
module_open,
module_close
}
};
EVAS_MODULE_DEFINE(EVAS_MODULE_TYPE_IMAGE_LOADER, image_loader, edb);
#ifndef EVAS_STATIC_BUILD_EDB
EVAS_EINA_MODULE_DEFINE(image_loader, edb);
#endif
|
