| 2388 |
dunkaist |
1 |
;;================================================================================================;; |
|
|
2 |
;;//// tiff.asm //// (c) dunkaist, 2011-2012 /////////////////////////////////////////////////////;; |
|
|
3 |
;;================================================================================================;; |
|
|
4 |
;; ;; |
|
|
5 |
;; This file is part of Common development libraries (Libs-Dev). ;; |
|
|
6 |
;; ;; |
|
|
7 |
;; Libs-Dev is free software: you can redistribute it and/or modify it under the terms of the GNU ;; |
|
|
8 |
;; Lesser General Public License as published by the Free Software Foundation, either version 2.1 ;; |
|
|
9 |
;; of the License, or (at your option) any later version. ;; |
|
|
10 |
;; ;; |
|
|
11 |
;; Libs-Dev is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without ;; |
|
|
12 |
;; even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ;; |
|
|
13 |
;; Lesser General Public License for more details. ;; |
|
|
14 |
;; ;; |
|
|
15 |
;; You should have received a copy of the GNU Lesser General Public License along with Libs-Dev. ;; |
|
|
16 |
;; If not, see . ;; |
|
|
17 |
;; ;; |
|
|
18 |
;;================================================================================================;; |
|
|
19 |
|
|
|
20 |
include 'tiff.inc' |
|
|
21 |
|
|
|
22 |
;;================================================================================================;; |
|
|
23 |
proc img.is.tiff _data, _length ;/////////////////////////////////////////////////////////////////;; |
|
|
24 |
;;------------------------------------------------------------------------------------------------;; |
|
|
25 |
;? Determine if raw data could be decoded (is in tiff format) ;; |
|
|
26 |
;;------------------------------------------------------------------------------------------------;; |
|
|
27 |
;> _data = raw data as read from file/stream ;; |
|
|
28 |
;> _length = data length ;; |
|
|
29 |
;;------------------------------------------------------------------------------------------------;; |
|
|
30 |
;< eax = false / true ;; |
|
|
31 |
;;================================================================================================;; |
|
|
32 |
|
|
|
33 |
push esi |
|
|
34 |
|
|
|
35 |
mov esi, [_data] |
|
|
36 |
lodsw |
|
|
37 |
cmp ax, word 'II' |
|
|
38 |
je .little_endian |
|
|
39 |
cmp ax, word 'MM' |
|
|
40 |
je .big_endian |
|
|
41 |
jmp .is_not_tiff |
|
|
42 |
|
|
|
43 |
.little_endian: |
|
|
44 |
lodsw |
|
|
45 |
cmp ax, 0x002A |
|
|
46 |
je .is_tiff |
|
|
47 |
jmp .is_not_tiff |
|
|
48 |
|
|
|
49 |
.big_endian: |
|
|
50 |
lodsw |
|
|
51 |
cmp ax, 0x2A00 |
|
|
52 |
je .is_tiff |
|
|
53 |
|
|
|
54 |
.is_not_tiff: |
|
|
55 |
pop esi |
|
|
56 |
xor eax, eax |
|
|
57 |
ret |
|
|
58 |
|
|
|
59 |
.is_tiff: |
|
|
60 |
pop esi |
|
|
61 |
xor eax, eax |
|
|
62 |
inc eax |
|
|
63 |
ret |
|
|
64 |
endp |
|
|
65 |
|
|
|
66 |
;;================================================================================================;; |
|
|
67 |
proc img.decode.tiff _data, _length, _options ;///////////////////////////////////////////////////;; |
|
|
68 |
;;------------------------------------------------------------------------------------------------;; |
|
|
69 |
;? Decode data into image if it contains correctly formed raw data in tiff format ;; |
|
|
70 |
;;------------------------------------------------------------------------------------------------;; |
|
|
71 |
;> _data = raw data as read from file/stream ;; |
|
|
72 |
;> _length = data length ;; |
|
|
73 |
;;------------------------------------------------------------------------------------------------;; |
|
|
74 |
;< eax = 0 (error) or pointer to image ;; |
|
|
75 |
;;================================================================================================;; |
|
|
76 |
locals |
|
|
77 |
_endianness rd 1 ; 0 stands for LE, otherwise BE |
|
|
78 |
retvalue rd 1 ; 0 (error) or pointer to image |
|
|
79 |
endl |
|
|
80 |
|
|
|
81 |
push ebx edx esi edi |
|
|
82 |
|
|
|
83 |
mov esi, [_data] |
|
|
84 |
lodsw |
|
|
85 |
mov [_endianness], 0 |
|
|
86 |
cmp ax, word 'II' |
|
|
87 |
seta byte[_endianness] |
|
|
88 |
|
|
|
89 |
lodsw_ |
|
|
90 |
lodsd_ |
|
|
91 |
@@: |
|
|
92 |
stdcall tiff._.parse_IFD, [_data], eax, [_endianness] |
|
|
93 |
mov ebx, eax |
|
|
94 |
mov [retvalue], eax |
|
|
95 |
lodsd_ |
|
|
96 |
test eax, eax |
|
|
97 |
; jnz @b |
|
|
98 |
|
|
|
99 |
|
|
|
100 |
.quit: |
|
|
101 |
mov eax, [retvalue] |
|
|
102 |
pop edi esi edx ebx |
|
|
103 |
ret |
|
|
104 |
endp |
|
|
105 |
|
|
|
106 |
|
|
|
107 |
;;================================================================================================;; |
|
|
108 |
proc img.encode.tiff _img, _p_length, _options ;//////////////////////////////////////////////////;; |
|
|
109 |
;;------------------------------------------------------------------------------------------------;; |
|
|
110 |
;? Encode image into raw data in tiff format ;; |
|
|
111 |
;;------------------------------------------------------------------------------------------------;; |
|
|
112 |
;> _img = pointer to image ;; |
|
|
113 |
;;------------------------------------------------------------------------------------------------;; |
|
|
114 |
;< eax = 0 (error) or pointer to encoded data ;; |
|
|
115 |
;< _p_length = encoded data length ;; |
|
|
116 |
;;================================================================================================;; |
|
|
117 |
xor eax, eax |
|
|
118 |
ret |
|
|
119 |
endp |
|
|
120 |
|
|
|
121 |
|
|
|
122 |
;;================================================================================================;; |
|
|
123 |
;;////////////////////////////////////////////////////////////////////////////////////////////////;; |
|
|
124 |
;;================================================================================================;; |
|
|
125 |
;! Below are private procs you should never call directly from your code ;; |
|
|
126 |
;;================================================================================================;; |
|
|
127 |
;;////////////////////////////////////////////////////////////////////////////////////////////////;; |
|
|
128 |
;;================================================================================================;; |
|
|
129 |
proc tiff._.parse_IFD _data, _IFD, _endianness |
|
|
130 |
locals |
|
|
131 |
extended rd 1 |
|
|
132 |
retvalue rd 1 |
|
|
133 |
decompress rd 1 |
|
|
134 |
endl |
|
|
135 |
push ebx edx edi |
|
|
136 |
mov [retvalue], 0 |
|
|
137 |
|
|
|
138 |
invoke mem.alloc, sizeof.tiff_extra |
|
|
139 |
test eax, eax |
|
|
140 |
jz .quit |
|
|
141 |
mov [extended], eax |
|
|
142 |
mov ebx, eax |
|
|
143 |
mov edi, eax |
|
|
144 |
mov ecx, sizeof.tiff_extra/4 |
|
|
145 |
xor eax, eax |
|
|
146 |
rep stosd |
|
|
147 |
|
|
|
148 |
mov esi, [_IFD] |
|
|
149 |
add esi, [_data] |
|
|
150 |
lodsw_ |
|
|
151 |
movzx ecx, ax |
|
|
152 |
@@: |
|
|
153 |
push ecx |
|
|
154 |
stdcall tiff._.parse_IFDE, [_data], [_endianness] |
|
|
155 |
pop ecx |
|
|
156 |
dec ecx |
|
|
157 |
jnz @b |
|
|
158 |
|
|
|
159 |
call tiff._.define_image_type |
|
|
160 |
|
|
|
161 |
stdcall img.create, [ebx + tiff_extra.image_width], [ebx + tiff_extra.image_height], eax |
|
|
162 |
test eax, eax |
|
|
163 |
jz .quit |
|
|
164 |
mov [retvalue], eax |
|
|
165 |
mov edx, eax |
|
|
166 |
mov [edx + Image.Extended], ebx |
|
|
167 |
|
|
|
168 |
cmp [ebx+tiff_extra.compression], TIFF.COMPRESSION.UNCOMPRESSED |
|
|
169 |
jne @f |
|
|
170 |
mov [decompress], tiff._.decompress.uncompressed |
|
|
171 |
jmp .decompressor_defined |
|
|
172 |
@@: |
|
|
173 |
cmp [ebx + tiff_extra.compression], TIFF.COMPRESSION.PACKBITS |
|
|
174 |
jne @f |
|
|
175 |
mov [decompress], tiff._.decompress.packbits |
|
|
176 |
jmp .decompressor_defined |
|
|
177 |
@@: |
| 2992 |
dunkaist |
178 |
cmp [ebx + tiff_extra.compression], TIFF.COMPRESSION.LZW |
|
|
179 |
jne @f |
|
|
180 |
mov [decompress], tiff._.decompress.lzw |
|
|
181 |
jmp .decompressor_defined |
|
|
182 |
@@: |
|
|
183 |
cmp [ebx + tiff_extra.compression], TIFF.COMPRESSION.CCITT1D |
|
|
184 |
jne @f |
| 2388 |
dunkaist |
185 |
mov [decompress], tiff._.decompress.ccitt1d |
|
|
186 |
jmp .decompressor_defined |
| 2992 |
dunkaist |
187 |
@@: |
|
|
188 |
|
|
|
189 |
mov [decompress], 0 |
| 2388 |
dunkaist |
190 |
jmp .quit |
|
|
191 |
.decompressor_defined: |
|
|
192 |
|
|
|
193 |
push esi ; fixme!! |
|
|
194 |
|
|
|
195 |
mov ecx, [edx + Image.Type] |
|
|
196 |
dec ecx |
| 2733 |
dunkaist |
197 |
jz .bpp8i |
| 2388 |
dunkaist |
198 |
dec ecx |
|
|
199 |
jz .bpp24 |
|
|
200 |
dec ecx |
|
|
201 |
jz .bpp32 |
|
|
202 |
dec ecx |
|
|
203 |
dec ecx ; tiff doesn't handle 15bpp images |
|
|
204 |
jz .bpp16 |
|
|
205 |
dec ecx |
|
|
206 |
jz .bpp1 |
|
|
207 |
dec ecx |
| 2733 |
dunkaist |
208 |
jz .bpp8g |
|
|
209 |
dec ecx |
|
|
210 |
jz .bpp8a |
| 2388 |
dunkaist |
211 |
;error report!! |
|
|
212 |
|
|
|
213 |
.bpp1: |
|
|
214 |
.bpp1.palette: |
|
|
215 |
mov edi, [edx+Image.Palette] |
|
|
216 |
cmp [ebx + tiff_extra.photometric], TIFF.PHOTOMETRIC.BLACK_IS_ZERO |
|
|
217 |
jne .bpp1.white_is_zero |
|
|
218 |
.bpp1.black_is_zero: |
|
|
219 |
mov [edi], dword 0x00000000 |
|
|
220 |
mov [edi + 4], dword 0x00ffffff |
|
|
221 |
jmp .common |
|
|
222 |
.bpp1.white_is_zero: |
|
|
223 |
mov [edi], dword 0x00ffffff |
|
|
224 |
mov [edi + 4], dword 0x00000000 |
|
|
225 |
jmp .common |
|
|
226 |
|
|
|
227 |
.bpp4: |
|
|
228 |
jmp .common |
|
|
229 |
|
| 2733 |
dunkaist |
230 |
.bpp8i: |
| 2388 |
dunkaist |
231 |
mov esi, [ebx + tiff_extra.palette] |
|
|
232 |
mov ah, 2 |
|
|
233 |
.bpp8.channel: |
|
|
234 |
mov edi, eax |
|
|
235 |
and edi, 0x0000ff00 |
|
|
236 |
shr edi, 8 |
|
|
237 |
add edi, [edx + Image.Palette] |
|
|
238 |
mov ecx, 256 |
|
|
239 |
@@: |
|
|
240 |
lodsb |
|
|
241 |
stosb |
|
|
242 |
lodsb |
|
|
243 |
add edi, 3 |
|
|
244 |
dec ecx |
|
|
245 |
jnz @b |
|
|
246 |
dec ah |
|
|
247 |
jns .bpp8.channel |
|
|
248 |
jmp .common |
| 2733 |
dunkaist |
249 |
.bpp8g: |
| 2388 |
dunkaist |
250 |
jmp .common |
|
|
251 |
|
| 2733 |
dunkaist |
252 |
.bpp8a: |
|
|
253 |
jmp .common |
|
|
254 |
|
| 2388 |
dunkaist |
255 |
.bpp16: |
|
|
256 |
jmp .common |
|
|
257 |
|
|
|
258 |
.bpp24: |
|
|
259 |
jmp .common |
|
|
260 |
|
|
|
261 |
.bpp32: |
|
|
262 |
jmp .common |
|
|
263 |
|
|
|
264 |
|
|
|
265 |
.common: |
|
|
266 |
mov edi, [edx+Image.Data] |
|
|
267 |
mov esi, [ebx+tiff_extra.strip_offsets] |
|
|
268 |
mov edx, [ebx+tiff_extra.strip_byte_counts] |
|
|
269 |
|
|
|
270 |
|
|
|
271 |
cmp [ebx + tiff_extra.strip_offsets_length], TIFF.IFDE_TYPE_LENGTH.SHORT |
|
|
272 |
jne .l_x |
|
|
273 |
cmp [ebx + tiff_extra.strip_byte_counts_length], TIFF.IFDE_TYPE_LENGTH.SHORT |
|
|
274 |
jne .s_l |
|
|
275 |
jmp .s_s |
|
|
276 |
.l_x: cmp [ebx + tiff_extra.strip_byte_counts_length], TIFF.IFDE_TYPE_LENGTH.SHORT |
|
|
277 |
jne .l_l |
|
|
278 |
jmp .l_s |
|
|
279 |
|
|
|
280 |
.s_s: |
|
|
281 |
xor eax, eax |
|
|
282 |
lodsw_ |
|
|
283 |
push esi |
|
|
284 |
mov esi, eax |
|
|
285 |
add esi, [_data] |
|
|
286 |
xor ecx, ecx |
|
|
287 |
mov cx, word[edx] |
|
|
288 |
test [_endianness], 1 |
|
|
289 |
jz @f |
|
|
290 |
xchg cl, ch |
|
|
291 |
@@: |
|
|
292 |
add edx, 2 |
|
|
293 |
stdcall [decompress], [retvalue] |
|
|
294 |
pop esi |
|
|
295 |
dec [ebx + tiff_extra.offsets_number] |
|
|
296 |
jnz .s_s |
|
|
297 |
jmp .decoded |
|
|
298 |
|
|
|
299 |
.s_l: |
|
|
300 |
xor eax, eax |
|
|
301 |
lodsw_ |
|
|
302 |
push esi |
|
|
303 |
mov esi, eax |
|
|
304 |
add esi, [_data] |
|
|
305 |
mov ecx, [edx] |
|
|
306 |
test [_endianness], 1 |
|
|
307 |
jz @f |
|
|
308 |
bswap ecx |
|
|
309 |
@@: |
|
|
310 |
add edx, 4 |
|
|
311 |
stdcall [decompress], [retvalue] |
|
|
312 |
pop esi |
|
|
313 |
dec [ebx + tiff_extra.offsets_number] |
|
|
314 |
jnz .s_l |
|
|
315 |
jmp .decoded |
|
|
316 |
|
|
|
317 |
.l_s: |
|
|
318 |
lodsd_ |
|
|
319 |
push esi |
|
|
320 |
mov esi, eax |
|
|
321 |
add esi, [_data] |
|
|
322 |
xor ecx, ecx |
|
|
323 |
mov cx, word[edx] |
|
|
324 |
test [_endianness], 1 |
|
|
325 |
jz @f |
|
|
326 |
xchg cl, ch |
|
|
327 |
@@: |
|
|
328 |
add edx, 2 |
|
|
329 |
stdcall [decompress], [retvalue] |
|
|
330 |
pop esi |
|
|
331 |
dec [ebx + tiff_extra.offsets_number] |
|
|
332 |
jnz .l_s |
|
|
333 |
jmp .decoded |
|
|
334 |
|
|
|
335 |
.l_l: |
|
|
336 |
lodsd_ |
|
|
337 |
push esi |
|
|
338 |
mov esi, eax |
|
|
339 |
add esi, [_data] |
|
|
340 |
mov ecx, [edx] |
|
|
341 |
test [_endianness], 1 |
|
|
342 |
jz @f |
|
|
343 |
bswap ecx |
|
|
344 |
@@: |
|
|
345 |
add edx, 4 |
|
|
346 |
stdcall [decompress], [retvalue] |
|
|
347 |
pop esi |
|
|
348 |
dec [ebx + tiff_extra.offsets_number] |
|
|
349 |
jnz .l_l |
|
|
350 |
jmp .decoded |
|
|
351 |
|
|
|
352 |
|
|
|
353 |
.decoded: |
| 2992 |
dunkaist |
354 |
.post.rgb_bgr: |
| 2388 |
dunkaist |
355 |
cmp [ebx + tiff_extra.samples_per_pixel], 3 |
| 2992 |
dunkaist |
356 |
jne .post.rgba_bgra |
| 2388 |
dunkaist |
357 |
mov eax, [retvalue] |
|
|
358 |
mov esi, [eax + Image.Data] |
|
|
359 |
mov edi, [eax + Image.Data] |
|
|
360 |
mov ecx, [eax + Image.Width] |
|
|
361 |
imul ecx, [eax + Image.Height] |
|
|
362 |
@@: |
|
|
363 |
lodsw |
|
|
364 |
movsb |
|
|
365 |
mov byte[esi - 1], al |
|
|
366 |
add edi, 2 |
|
|
367 |
dec ecx |
|
|
368 |
jnz @b |
| 2992 |
dunkaist |
369 |
|
|
|
370 |
.post.rgba_bgra: |
|
|
371 |
cmp [ebx + tiff_extra.samples_per_pixel], 4 |
|
|
372 |
jne .post.bpp8a_to_bpp8g |
|
|
373 |
mov eax, [retvalue] |
|
|
374 |
mov esi, [eax + Image.Data] |
|
|
375 |
mov edi, [eax + Image.Data] |
|
|
376 |
mov ecx, [eax + Image.Width] |
|
|
377 |
imul ecx, [eax + Image.Height] |
|
|
378 |
@@: |
|
|
379 |
lodsw |
|
|
380 |
movsb |
|
|
381 |
mov byte[esi - 1], al |
|
|
382 |
add edi, 3 |
|
|
383 |
add esi, 1 |
|
|
384 |
dec ecx |
|
|
385 |
jnz @b |
|
|
386 |
|
|
|
387 |
.post.bpp8a_to_bpp8g: |
|
|
388 |
mov eax, [retvalue] |
|
|
389 |
cmp [eax + Image.Type], Image.bpp8a |
|
|
390 |
jne .post.predictor |
| 2733 |
dunkaist |
391 |
mov ebx, [retvalue] |
|
|
392 |
stdcall tiff._.pack_8a, ebx |
|
|
393 |
mov [ebx + Image.Type], Image.bpp8g |
| 2388 |
dunkaist |
394 |
|
| 2992 |
dunkaist |
395 |
.post.predictor: |
|
|
396 |
cmp [ebx + tiff_extra.predictor], 2 ; Horizontal differencing |
|
|
397 |
jne .post.end |
| 3053 |
dunkaist |
398 |
cmp [ebx + tiff_extra.image_width], 1 |
|
|
399 |
je .post.end |
| 2992 |
dunkaist |
400 |
push ebx |
|
|
401 |
mov edi, [ebx + tiff_extra.samples_per_pixel] |
|
|
402 |
mov edx, edi |
|
|
403 |
mov ebx, [retvalue] |
|
|
404 |
.post.predictor.plane: |
|
|
405 |
mov esi, [ebx + Image.Data] |
|
|
406 |
sub esi, 1 |
|
|
407 |
add esi, edx |
|
|
408 |
mov ecx, [ebx + Image.Height] |
|
|
409 |
.post.predictor.line: |
|
|
410 |
push ecx |
|
|
411 |
mov ecx, [ebx + Image.Width] |
|
|
412 |
sub ecx, 1 |
|
|
413 |
mov ah, byte[esi] |
|
|
414 |
add esi, edi |
|
|
415 |
@@: |
|
|
416 |
mov al, byte[esi] |
|
|
417 |
add al, ah |
|
|
418 |
mov byte[esi], al |
|
|
419 |
add esi, edi |
|
|
420 |
shl eax, 8 |
|
|
421 |
dec ecx |
|
|
422 |
jnz @b |
|
|
423 |
pop ecx |
|
|
424 |
dec ecx |
|
|
425 |
jnz .post.predictor.line |
|
|
426 |
dec edx |
|
|
427 |
jnz .post.predictor.plane |
|
|
428 |
pop ebx |
|
|
429 |
|
|
|
430 |
.post.end: |
|
|
431 |
|
| 2388 |
dunkaist |
432 |
.pop_quit: |
|
|
433 |
pop esi |
|
|
434 |
.quit: |
|
|
435 |
pop edi edx ebx |
|
|
436 |
mov eax, [retvalue] |
|
|
437 |
ret |
|
|
438 |
endp |
|
|
439 |
|
|
|
440 |
proc tiff._.parse_IFDE _data, _endianness |
|
|
441 |
|
|
|
442 |
push ebx edx edi |
|
|
443 |
|
|
|
444 |
lodsw_ |
|
|
445 |
mov edx, tiff.IFDE_tag_table.begin |
|
|
446 |
mov ecx, (tiff.IFDE_tag_table.end-tiff.IFDE_tag_table.begin)/8 |
|
|
447 |
.tag: |
|
|
448 |
cmp ax, word[edx] |
|
|
449 |
jne @f |
|
|
450 |
lodsw_ |
|
|
451 |
jmp dword[edx + 4] |
|
|
452 |
@@: |
|
|
453 |
add edx, 8 |
|
|
454 |
dec ecx |
|
|
455 |
jnz .tag |
| 2992 |
dunkaist |
456 |
.tag_default: ; unknown/unsupported/unimportant |
| 2388 |
dunkaist |
457 |
lodsw |
|
|
458 |
lodsd |
|
|
459 |
lodsd |
| 2733 |
dunkaist |
460 |
jmp .quit ; just skip it |
| 2388 |
dunkaist |
461 |
|
| 2733 |
dunkaist |
462 |
.tag_100: ; ImageWidth |
| 2388 |
dunkaist |
463 |
cmp ax, TIFF.IFDE_TYPE.SHORT |
|
|
464 |
jne @f |
|
|
465 |
lodsd |
|
|
466 |
xor eax, eax |
|
|
467 |
lodsw_ |
|
|
468 |
mov [ebx + tiff_extra.image_width], eax |
|
|
469 |
lodsw |
|
|
470 |
jmp .quit |
|
|
471 |
@@: |
|
|
472 |
cmp ax, TIFF.IFDE_TYPE.LONG |
|
|
473 |
jne @f |
|
|
474 |
lodsd |
|
|
475 |
lodsd_ |
|
|
476 |
mov [ebx + tiff_extra.image_width], eax |
|
|
477 |
jmp .quit |
|
|
478 |
@@: |
|
|
479 |
jmp .quit |
|
|
480 |
|
| 2733 |
dunkaist |
481 |
.tag_101: ; ImageHeight |
| 2388 |
dunkaist |
482 |
cmp ax, TIFF.IFDE_TYPE.SHORT |
|
|
483 |
jne @f |
|
|
484 |
lodsd |
|
|
485 |
xor eax, eax |
|
|
486 |
lodsw_ |
|
|
487 |
mov [ebx + tiff_extra.image_height], eax |
|
|
488 |
lodsw |
|
|
489 |
jmp .quit |
|
|
490 |
@@: |
|
|
491 |
cmp ax, TIFF.IFDE_TYPE.LONG |
|
|
492 |
jne @f |
|
|
493 |
lodsd |
|
|
494 |
lodsd_ |
|
|
495 |
mov [ebx + tiff_extra.image_height], eax |
|
|
496 |
jmp .quit |
|
|
497 |
@@: |
|
|
498 |
jmp .quit |
|
|
499 |
|
| 2733 |
dunkaist |
500 |
.tag_102: ; BitsPerSample |
| 2388 |
dunkaist |
501 |
lodsd_ |
|
|
502 |
imul eax, TIFF.IFDE_TYPE_LENGTH.SHORT |
|
|
503 |
cmp eax, 4 |
|
|
504 |
ja @f |
|
|
505 |
xor eax, eax |
|
|
506 |
lodsw_ |
|
|
507 |
mov [ebx + tiff_extra.bits_per_sample], eax |
|
|
508 |
lodsw |
|
|
509 |
jmp .quit |
|
|
510 |
@@: |
|
|
511 |
lodsd_ |
|
|
512 |
add eax, [_data] |
|
|
513 |
push esi |
|
|
514 |
mov esi, eax |
|
|
515 |
xor eax, eax |
|
|
516 |
lodsw_ |
|
|
517 |
pop esi |
|
|
518 |
mov [ebx + tiff_extra.bits_per_sample], eax |
|
|
519 |
jmp .quit |
|
|
520 |
|
| 2733 |
dunkaist |
521 |
.tag_103: ; Compression |
| 2388 |
dunkaist |
522 |
cmp ax, TIFF.IFDE_TYPE.SHORT |
|
|
523 |
jne @f |
|
|
524 |
lodsd |
|
|
525 |
xor eax, eax |
|
|
526 |
lodsw_ |
|
|
527 |
mov [ebx + tiff_extra.compression], eax |
|
|
528 |
lodsw |
|
|
529 |
jmp .quit |
|
|
530 |
@@: |
|
|
531 |
jmp .quit |
|
|
532 |
|
| 2733 |
dunkaist |
533 |
.tag_106: ; PhotometricInterpretation |
| 2388 |
dunkaist |
534 |
cmp ax, TIFF.IFDE_TYPE.SHORT |
|
|
535 |
jne @f |
|
|
536 |
lodsd |
|
|
537 |
xor eax, eax |
|
|
538 |
lodsw_ |
|
|
539 |
mov [ebx + tiff_extra.photometric], eax |
|
|
540 |
lodsw |
|
|
541 |
jmp .quit |
|
|
542 |
@@: |
|
|
543 |
|
|
|
544 |
jmp .quit |
|
|
545 |
|
| 2733 |
dunkaist |
546 |
.tag_111: ; StripOffsets |
| 2388 |
dunkaist |
547 |
cmp ax, TIFF.IFDE_TYPE.SHORT |
|
|
548 |
jne @f |
|
|
549 |
mov [ebx + tiff_extra.strip_offsets_length], TIFF.IFDE_TYPE_LENGTH.SHORT |
|
|
550 |
jmp .tag_111.common |
|
|
551 |
@@: |
|
|
552 |
mov [ebx + tiff_extra.strip_offsets_length], TIFF.IFDE_TYPE_LENGTH.LONG |
|
|
553 |
.tag_111.common: |
|
|
554 |
lodsd_ |
|
|
555 |
mov [ebx + tiff_extra.offsets_number], eax |
|
|
556 |
imul eax, [ebx+tiff_extra.strip_offsets_length] |
|
|
557 |
cmp eax, 4 |
|
|
558 |
ja @f |
|
|
559 |
mov [ebx + tiff_extra.strip_offsets], esi |
|
|
560 |
lodsd |
|
|
561 |
jmp .quit |
|
|
562 |
@@: |
|
|
563 |
lodsd_ |
|
|
564 |
add eax, [_data] |
|
|
565 |
mov [ebx + tiff_extra.strip_offsets], eax |
|
|
566 |
jmp .quit |
|
|
567 |
|
| 2733 |
dunkaist |
568 |
.tag_115: ; SamplesPerPixel |
| 2388 |
dunkaist |
569 |
lodsd_ |
|
|
570 |
imul eax, TIFF.IFDE_TYPE_LENGTH.SHORT |
|
|
571 |
cmp eax, 4 |
|
|
572 |
ja @f |
|
|
573 |
xor eax, eax |
|
|
574 |
lodsw_ |
|
|
575 |
mov [ebx + tiff_extra.samples_per_pixel], eax |
|
|
576 |
lodsw |
|
|
577 |
jmp .quit |
|
|
578 |
@@: |
|
|
579 |
lodsd_ |
|
|
580 |
add eax, [_data] |
|
|
581 |
movzx eax, word[eax] |
|
|
582 |
jmp .quit |
|
|
583 |
|
| 2733 |
dunkaist |
584 |
.tag_116: ; RowsPerStrip |
| 2388 |
dunkaist |
585 |
cmp ax, TIFF.IFDE_TYPE.SHORT |
|
|
586 |
jne @f |
|
|
587 |
lodsd |
|
|
588 |
xor eax, eax |
|
|
589 |
lodsw_ |
|
|
590 |
mov [ebx + tiff_extra.rows_per_strip], eax |
|
|
591 |
lodsw |
|
|
592 |
jmp .quit |
|
|
593 |
@@: |
|
|
594 |
lodsd |
|
|
595 |
lodsd_ |
|
|
596 |
mov [ebx + tiff_extra.rows_per_strip], eax |
|
|
597 |
jmp .quit |
|
|
598 |
|
| 2733 |
dunkaist |
599 |
.tag_117: ; StripByteCounts |
| 2388 |
dunkaist |
600 |
cmp ax, TIFF.IFDE_TYPE.SHORT |
|
|
601 |
jne @f |
|
|
602 |
mov [ebx + tiff_extra.strip_byte_counts_length], TIFF.IFDE_TYPE_LENGTH.SHORT |
|
|
603 |
jmp .tag_117.common |
|
|
604 |
@@: |
|
|
605 |
mov [ebx + tiff_extra.strip_byte_counts_length], TIFF.IFDE_TYPE_LENGTH.LONG |
|
|
606 |
.tag_117.common: |
|
|
607 |
lodsd_ |
|
|
608 |
imul eax, [ebx + tiff_extra.strip_byte_counts_length] |
|
|
609 |
cmp eax, 4 |
|
|
610 |
ja @f |
|
|
611 |
mov [ebx + tiff_extra.strip_byte_counts], esi |
|
|
612 |
lodsd |
|
|
613 |
jmp .quit |
|
|
614 |
@@: |
|
|
615 |
lodsd_ |
|
|
616 |
add eax, [_data] |
|
|
617 |
mov [ebx + tiff_extra.strip_byte_counts], eax |
|
|
618 |
jmp .quit |
|
|
619 |
|
| 2992 |
dunkaist |
620 |
.tag_13d: ; Predictor |
|
|
621 |
cmp ax, TIFF.IFDE_TYPE.SHORT |
|
|
622 |
jne @f |
|
|
623 |
lodsd |
|
|
624 |
xor eax, eax |
|
|
625 |
lodsw_ |
|
|
626 |
mov [ebx + tiff_extra.predictor], eax |
|
|
627 |
lodsw |
|
|
628 |
@@: |
|
|
629 |
jmp .quit |
|
|
630 |
|
| 2733 |
dunkaist |
631 |
.tag_140: ; ColorMap |
| 2388 |
dunkaist |
632 |
lodsd |
|
|
633 |
lodsd_ |
|
|
634 |
add eax, [_data] |
|
|
635 |
mov [ebx + tiff_extra.palette], eax |
|
|
636 |
jmp .quit |
| 2733 |
dunkaist |
637 |
.tag_152: ; ExtraSamples |
|
|
638 |
mov [ebx + tiff_extra.extra_samples], esi |
|
|
639 |
mov ecx, [ebx + tiff_extra.extra_samples_number] |
|
|
640 |
rep lodsw ; ignored |
|
|
641 |
jmp .quit |
| 2388 |
dunkaist |
642 |
|
|
|
643 |
.quit: |
|
|
644 |
pop edi edx ebx |
|
|
645 |
ret |
|
|
646 |
endp |
|
|
647 |
|
|
|
648 |
|
|
|
649 |
proc tiff._.define_image_type |
|
|
650 |
|
|
|
651 |
xor eax, eax |
|
|
652 |
|
| 2733 |
dunkaist |
653 |
cmp [ebx + tiff_extra.photometric], TIFF.PHOTOMETRIC.RGB |
|
|
654 |
jne .not_full_color |
|
|
655 |
mov eax, -3 |
|
|
656 |
add eax, [ebx + tiff_extra.samples_per_pixel] |
|
|
657 |
mov [ebx + tiff_extra.extra_samples_number], eax |
|
|
658 |
dec eax |
|
|
659 |
jns @f |
|
|
660 |
mov eax, Image.bpp24 |
|
|
661 |
jmp .quit |
|
|
662 |
@@: |
|
|
663 |
dec eax |
|
|
664 |
jns @f |
|
|
665 |
mov eax, Image.bpp32 |
|
|
666 |
; mov [ebx + tiff_extra.extra_samples_number], 0 |
|
|
667 |
jmp .quit |
|
|
668 |
@@: |
|
|
669 |
.not_full_color: ; grayscale, indexed, bilevel |
| 2388 |
dunkaist |
670 |
cmp [ebx + tiff_extra.bits_per_sample], 1 |
|
|
671 |
jg .not_bilevel |
|
|
672 |
mov eax, Image.bpp1 |
|
|
673 |
jmp .quit |
| 2733 |
dunkaist |
674 |
.not_bilevel: ; grayscale, indexed |
| 2388 |
dunkaist |
675 |
cmp [ebx + tiff_extra.palette], 0 |
|
|
676 |
je .without_palette |
|
|
677 |
cmp [ebx + tiff_extra.bits_per_sample], 4 |
|
|
678 |
jne @f |
| 2733 |
dunkaist |
679 |
; mov eax, Image.bpp4 |
| 2388 |
dunkaist |
680 |
jmp .quit |
|
|
681 |
@@: |
|
|
682 |
cmp [ebx + tiff_extra.bits_per_sample], 8 |
|
|
683 |
jne @f |
| 2733 |
dunkaist |
684 |
mov eax, Image.bpp8i |
| 2388 |
dunkaist |
685 |
jmp .quit |
|
|
686 |
@@: |
|
|
687 |
jmp .quit |
| 2733 |
dunkaist |
688 |
.without_palette: ; grayscale |
|
|
689 |
mov eax, -1 |
|
|
690 |
add eax, [ebx + tiff_extra.samples_per_pixel] |
|
|
691 |
mov [ebx + tiff_extra.extra_samples_number], eax |
|
|
692 |
dec eax |
|
|
693 |
jns @f |
|
|
694 |
mov eax, Image.bpp8g |
| 2388 |
dunkaist |
695 |
jmp .quit |
|
|
696 |
@@: |
| 2733 |
dunkaist |
697 |
mov eax, Image.bpp8a |
| 2388 |
dunkaist |
698 |
jmp .quit |
|
|
699 |
.quit: |
|
|
700 |
ret |
|
|
701 |
endp |
|
|
702 |
|
|
|
703 |
|
|
|
704 |
proc tiff._.decompress.uncompressed _image |
|
|
705 |
|
|
|
706 |
rep movsb |
|
|
707 |
ret |
|
|
708 |
endp |
|
|
709 |
|
|
|
710 |
|
|
|
711 |
proc tiff._.decompress.packbits _image |
|
|
712 |
|
|
|
713 |
push ebx ecx edx esi |
|
|
714 |
|
|
|
715 |
mov edx, ecx |
|
|
716 |
|
|
|
717 |
.decode: |
|
|
718 |
lodsb |
|
|
719 |
dec edx |
| 2397 |
dunkaist |
720 |
cmp al, 0x7f |
| 2388 |
dunkaist |
721 |
jbe .different |
|
|
722 |
cmp al, 0x80 |
|
|
723 |
jne .identical |
|
|
724 |
test edx, edx |
|
|
725 |
jz .quit |
|
|
726 |
jmp .decode |
|
|
727 |
|
|
|
728 |
.identical: |
|
|
729 |
neg al |
|
|
730 |
inc al |
|
|
731 |
movzx ecx, al |
|
|
732 |
dec edx |
|
|
733 |
lodsb |
|
|
734 |
rep stosb |
|
|
735 |
test edx, edx |
|
|
736 |
jnz .decode |
|
|
737 |
jmp .quit |
|
|
738 |
|
|
|
739 |
.different: |
|
|
740 |
movzx ecx, al |
|
|
741 |
inc ecx |
|
|
742 |
sub edx, ecx |
|
|
743 |
rep movsb |
|
|
744 |
test edx, edx |
|
|
745 |
jnz .decode |
|
|
746 |
|
|
|
747 |
.quit: |
|
|
748 |
pop esi edx ecx ebx |
|
|
749 |
ret |
|
|
750 |
endp |
|
|
751 |
|
|
|
752 |
|
|
|
753 |
proc tiff._.decompress.ccitt1d _image |
|
|
754 |
locals |
|
|
755 |
current_tree rd 1 |
|
|
756 |
old_tree rd 1 |
|
|
757 |
width rd 1 |
|
|
758 |
height rd 1 |
|
|
759 |
width_left rd 1 |
|
|
760 |
is_makeup rd 1 |
|
|
761 |
endl |
|
|
762 |
push ebx ecx edx esi |
|
|
763 |
mov [is_makeup], 0 |
|
|
764 |
|
|
|
765 |
mov ebx, [_image] |
|
|
766 |
push [ebx + Image.Height] |
|
|
767 |
pop [height] |
|
|
768 |
push [ebx + Image.Width] |
|
|
769 |
pop [width] |
|
|
770 |
|
|
|
771 |
mov edx, esi |
|
|
772 |
.next_scanline: |
|
|
773 |
push [width] |
|
|
774 |
pop [width_left] |
|
|
775 |
dec [height] |
|
|
776 |
js .error |
|
|
777 |
mov [current_tree], tiff._.huffman_tree_white.begin |
|
|
778 |
mov [old_tree], tiff._.huffman_tree_black.begin |
|
|
779 |
mov ebx, 0 |
|
|
780 |
mov ecx, 8 |
|
|
781 |
.next_run: |
|
|
782 |
mov esi, [current_tree] |
|
|
783 |
.branch: |
|
|
784 |
lodsd |
|
|
785 |
btr eax, 31 |
|
|
786 |
jnc .not_a_leaf |
|
|
787 |
cmp eax, 63 |
|
|
788 |
seta byte[is_makeup] |
|
|
789 |
ja @f |
|
|
790 |
push [current_tree] |
|
|
791 |
push [old_tree] |
|
|
792 |
pop [current_tree] |
|
|
793 |
pop [old_tree] |
|
|
794 |
@@: |
|
|
795 |
stdcall tiff._.write_run, [width_left], [current_tree] |
|
|
796 |
mov [width_left], eax |
|
|
797 |
test byte[is_makeup], 0x01 |
|
|
798 |
jnz .next_run |
|
|
799 |
test eax, eax |
|
|
800 |
jnz .next_run |
|
|
801 |
jmp .next_scanline |
|
|
802 |
.not_a_leaf: |
|
|
803 |
test bh, bh |
|
|
804 |
jnz @f |
|
|
805 |
mov bl, byte[edx] |
|
|
806 |
inc edx |
|
|
807 |
mov bh, 8 |
|
|
808 |
@@: |
|
|
809 |
test al, 0x02 |
|
|
810 |
jz .not_a_corner |
|
|
811 |
dec bh |
|
|
812 |
sal bl, 1 |
|
|
813 |
lahf |
|
|
814 |
and ah, 0x03 |
|
|
815 |
cmp al, ah |
|
|
816 |
jne .error |
|
|
817 |
mov esi, [esi] |
|
|
818 |
jmp .branch |
|
|
819 |
.not_a_corner: |
|
|
820 |
lodsd |
|
|
821 |
dec bh |
|
|
822 |
sal bl, 1 |
|
|
823 |
jc .branch |
|
|
824 |
mov esi, eax |
|
|
825 |
jmp .branch |
|
|
826 |
.error: |
|
|
827 |
.quit: |
|
|
828 |
pop esi edx ecx ebx |
|
|
829 |
ret |
|
|
830 |
endp |
|
|
831 |
|
|
|
832 |
|
| 2992 |
dunkaist |
833 |
proc tiff._.decompress.lzw _image |
|
|
834 |
locals |
|
|
835 |
cur_shift rd 1 ; 9 -- 12 |
|
|
836 |
shift_counter rd 1 ; how many shifts of current length remained |
|
|
837 |
bits_left rd 1 ; in current byte ( pointed to by [esi] ) |
|
|
838 |
table rd 1 |
|
|
839 |
table_size rd 1 ; the number of entries |
|
|
840 |
old_code rd 1 |
|
|
841 |
next_table_entry rd 1 ; where to place new entry |
|
|
842 |
endl |
|
|
843 |
push ebx ecx edx esi |
|
|
844 |
|
|
|
845 |
mov [table], 0 |
|
|
846 |
mov [bits_left], 8 |
|
|
847 |
mov [cur_shift], 9 |
|
|
848 |
|
|
|
849 |
.begin: |
|
|
850 |
|
|
|
851 |
; .getnextcode: |
|
|
852 |
xor eax, eax |
|
|
853 |
mov edx, [cur_shift] |
|
|
854 |
|
|
|
855 |
lodsb |
|
|
856 |
mov ecx, [bits_left] |
|
|
857 |
mov ch, cl |
|
|
858 |
neg cl |
|
|
859 |
add cl, 8 |
|
|
860 |
shl al, cl |
|
|
861 |
mov cl, ch |
|
|
862 |
shl eax, cl |
|
|
863 |
sub edx, [bits_left] |
|
|
864 |
; second_byte |
|
|
865 |
cmp edx, 8 |
|
|
866 |
je .enough_zero |
|
|
867 |
jb .enough_nonzero |
|
|
868 |
sub edx, 8 |
|
|
869 |
lodsb |
|
|
870 |
shl eax, 8 |
|
|
871 |
jmp .third_byte |
|
|
872 |
.enough_zero: |
|
|
873 |
mov [bits_left], 8 |
|
|
874 |
lodsb |
|
|
875 |
jmp .code_done |
|
|
876 |
.enough_nonzero: |
|
|
877 |
mov al, byte[esi] |
|
|
878 |
neg edx |
|
|
879 |
add edx, 8 |
|
|
880 |
mov ecx, edx |
|
|
881 |
mov [bits_left], edx |
|
|
882 |
shr eax, cl |
|
|
883 |
jmp .code_done |
|
|
884 |
.third_byte: |
|
|
885 |
mov al, byte[esi] |
|
|
886 |
neg edx |
|
|
887 |
add edx, 8 |
|
|
888 |
mov ecx, edx |
|
|
889 |
mov [bits_left], edx |
|
|
890 |
shr eax, cl |
|
|
891 |
.code_done: |
|
|
892 |
|
|
|
893 |
|
|
|
894 |
mov ebx, eax |
|
|
895 |
cmp ebx, 0x101 ; end of information |
|
|
896 |
je .quit |
|
|
897 |
cmp ebx, 0x100 ; clear code |
|
|
898 |
jne .no_clear_code |
|
|
899 |
|
|
|
900 |
cmp [table], 0 |
|
|
901 |
jne @f |
|
|
902 |
invoke mem.alloc, 256 + 63488 ; 256 + (2^8 + 2^9 + 2^10 + 2^11 + 2^12)*(4+4) |
|
|
903 |
test eax, eax |
|
|
904 |
jz .quit |
|
|
905 |
mov [table], eax |
|
|
906 |
@@: |
|
|
907 |
mov eax, [table] |
|
|
908 |
mov [next_table_entry], eax |
|
|
909 |
add [next_table_entry], 256 + (256*8) + 2*8 |
|
|
910 |
mov [cur_shift], 9 |
|
|
911 |
mov [shift_counter], 256-3 ; clear code, end of information, why -3? |
|
|
912 |
mov [table_size], 257 |
|
|
913 |
|
|
|
914 |
push edi |
|
|
915 |
mov ecx, 256 |
|
|
916 |
mov edi, [table] |
|
|
917 |
mov ebx, edi |
|
|
918 |
add edi, 256 |
|
|
919 |
mov eax, 0 |
|
|
920 |
@@: |
|
|
921 |
mov byte[ebx], al |
|
|
922 |
mov [edi], ebx |
|
|
923 |
add edi, 4 |
|
|
924 |
add ebx, 1 |
|
|
925 |
add eax, 1 |
|
|
926 |
mov [edi], dword 1 |
|
|
927 |
add edi, 4 |
|
|
928 |
dec ecx |
|
|
929 |
jnz @b |
|
|
930 |
pop edi |
|
|
931 |
; .getnextcode: |
|
|
932 |
xor eax, eax |
|
|
933 |
mov edx, [cur_shift] |
|
|
934 |
|
|
|
935 |
lodsb |
|
|
936 |
mov ecx, [bits_left] |
|
|
937 |
mov ch, cl |
|
|
938 |
neg cl |
|
|
939 |
add cl, 8 |
|
|
940 |
shl al, cl |
|
|
941 |
mov cl, ch |
|
|
942 |
shl eax, cl |
|
|
943 |
sub edx, [bits_left] |
|
|
944 |
; second_byte |
|
|
945 |
cmp edx, 8 |
|
|
946 |
je .enough_zero2 |
|
|
947 |
jb .enough_nonzero2 |
|
|
948 |
sub edx, 8 |
|
|
949 |
lodsb |
|
|
950 |
shl eax, 8 |
|
|
951 |
jmp .third_byte2 |
|
|
952 |
.enough_zero2: |
|
|
953 |
mov [bits_left], 8 |
|
|
954 |
lodsb |
|
|
955 |
jmp .code_done2 |
|
|
956 |
.enough_nonzero2: |
|
|
957 |
mov al, byte[esi] |
|
|
958 |
neg edx |
|
|
959 |
add edx, 8 |
|
|
960 |
mov ecx, edx |
|
|
961 |
mov [bits_left], edx |
|
|
962 |
shr eax, cl |
|
|
963 |
jmp .code_done2 |
|
|
964 |
.third_byte2: |
|
|
965 |
mov al, byte[esi] |
|
|
966 |
neg edx |
|
|
967 |
add edx, 8 |
|
|
968 |
mov ecx, edx |
|
|
969 |
mov [bits_left], edx |
|
|
970 |
shr eax, cl |
|
|
971 |
.code_done2: |
|
|
972 |
|
|
|
973 |
|
|
|
974 |
mov [old_code], eax |
|
|
975 |
cmp eax, 0x101 ; end of information |
|
|
976 |
je .quit |
|
|
977 |
|
|
|
978 |
push esi |
|
|
979 |
mov esi, [table] |
|
|
980 |
lea esi, [esi + eax*8 + 256] |
|
|
981 |
mov ecx, dword[esi+4] |
|
|
982 |
|
|
|
983 |
mov edx, [next_table_entry] |
|
|
984 |
mov [edx], edi |
|
|
985 |
lea eax, [ecx + 1] |
|
|
986 |
mov [edx + 4], eax |
|
|
987 |
add [next_table_entry], 8 |
|
|
988 |
|
|
|
989 |
mov esi, [esi] |
|
|
990 |
rep movsb |
|
|
991 |
pop esi |
|
|
992 |
jmp .begin |
|
|
993 |
.no_clear_code: |
|
|
994 |
cmp eax, [table_size] |
|
|
995 |
ja .not_in_table |
|
|
996 |
mov [old_code], eax |
|
|
997 |
push esi |
|
|
998 |
mov esi, [table] |
|
|
999 |
lea esi, [esi + eax*8 + 256] |
|
|
1000 |
mov ecx, dword[esi + 4] |
|
|
1001 |
|
|
|
1002 |
mov edx, [next_table_entry] |
|
|
1003 |
mov [edx], edi |
|
|
1004 |
lea eax, [ecx + 1] |
|
|
1005 |
mov [edx + 4], eax |
|
|
1006 |
add [next_table_entry], 8 |
|
|
1007 |
add [table_size], 1 |
|
|
1008 |
|
|
|
1009 |
mov esi, [esi] |
|
|
1010 |
rep movsb |
|
|
1011 |
pop esi |
|
|
1012 |
|
|
|
1013 |
dec [shift_counter] |
|
|
1014 |
jnz @f |
|
|
1015 |
mov ecx, [cur_shift] |
|
|
1016 |
add [cur_shift], 1 |
|
|
1017 |
mov edx, 1 |
|
|
1018 |
shl edx, cl |
|
|
1019 |
mov [shift_counter], edx |
|
|
1020 |
@@: |
|
|
1021 |
jmp .begin |
|
|
1022 |
|
|
|
1023 |
.not_in_table: |
|
|
1024 |
xchg eax, [old_code] |
|
|
1025 |
push esi |
|
|
1026 |
mov esi, [table] |
|
|
1027 |
lea esi, [esi + eax*8 + 256] |
|
|
1028 |
mov ecx, dword[esi+4] |
|
|
1029 |
|
|
|
1030 |
mov edx, [next_table_entry] |
|
|
1031 |
mov [edx], edi |
|
|
1032 |
lea eax, [ecx + 2] |
|
|
1033 |
mov [edx + 4], eax |
|
|
1034 |
add [next_table_entry], 8 |
|
|
1035 |
add [table_size], 1 |
|
|
1036 |
|
|
|
1037 |
mov esi, [esi] |
|
|
1038 |
mov al, [esi] |
|
|
1039 |
rep movsb |
|
|
1040 |
mov byte[edi], al |
|
|
1041 |
add edi, 1 |
|
|
1042 |
pop esi |
|
|
1043 |
|
|
|
1044 |
dec [shift_counter] |
|
|
1045 |
jnz @f |
|
|
1046 |
mov ecx, [cur_shift] |
|
|
1047 |
add [cur_shift], 1 |
|
|
1048 |
mov edx, 1 |
|
|
1049 |
shl edx, cl |
|
|
1050 |
mov [shift_counter], edx |
|
|
1051 |
@@: |
|
|
1052 |
jmp .begin |
|
|
1053 |
|
|
|
1054 |
.quit: |
|
|
1055 |
cmp [table], 0 |
|
|
1056 |
je @f |
|
|
1057 |
invoke mem.free, [table] |
|
|
1058 |
@@: |
|
|
1059 |
pop esi edx ecx ebx |
|
|
1060 |
ret |
|
|
1061 |
endp |
|
|
1062 |
|
|
|
1063 |
|
| 2388 |
dunkaist |
1064 |
proc tiff._.write_run _width_left, _current_tree |
|
|
1065 |
|
|
|
1066 |
push ebx |
|
|
1067 |
|
|
|
1068 |
test eax, eax |
|
|
1069 |
jz .done |
|
|
1070 |
sub [_width_left], eax |
|
|
1071 |
js .error |
|
|
1072 |
cmp esi, tiff._.huffman_tree_black.begin |
|
|
1073 |
seta bh |
|
|
1074 |
|
|
|
1075 |
cmp ecx, eax |
|
|
1076 |
ja .one_byte |
|
|
1077 |
.many_bytes: |
|
|
1078 |
mov bl, [edi] |
|
|
1079 |
@@: |
|
|
1080 |
shl bl, 1 |
|
|
1081 |
or bl, bh |
|
|
1082 |
dec eax |
|
|
1083 |
dec ecx |
|
|
1084 |
jnz @b |
|
|
1085 |
mov [edi], bl |
|
|
1086 |
inc edi |
|
|
1087 |
mov ecx, eax |
|
|
1088 |
and eax, 0x07 |
|
|
1089 |
shr ecx, 3 |
|
|
1090 |
|
|
|
1091 |
push eax |
|
|
1092 |
xor eax, eax |
|
|
1093 |
test bh, bh |
|
|
1094 |
jz @f |
|
|
1095 |
dec al |
|
|
1096 |
@@: |
|
|
1097 |
rep stosb |
|
|
1098 |
pop eax |
|
|
1099 |
|
|
|
1100 |
mov ecx, 8 |
|
|
1101 |
test eax, eax |
|
|
1102 |
jz .done |
|
|
1103 |
|
|
|
1104 |
.one_byte: |
|
|
1105 |
mov bl, [edi] |
|
|
1106 |
@@: |
|
|
1107 |
shl bl, 1 |
|
|
1108 |
or bl, bh |
|
|
1109 |
dec ecx |
|
|
1110 |
dec eax |
|
|
1111 |
jnz @b |
|
|
1112 |
mov byte[edi], bl |
|
|
1113 |
|
|
|
1114 |
cmp [_width_left], 0 |
|
|
1115 |
jne .done |
|
|
1116 |
mov bl, [edi] |
|
|
1117 |
shl bl, cl |
|
|
1118 |
mov byte[edi], bl |
|
|
1119 |
inc edi |
|
|
1120 |
.done: |
|
|
1121 |
mov eax, [_width_left] |
|
|
1122 |
jmp .quit |
|
|
1123 |
.error: |
|
|
1124 |
.quit: |
|
|
1125 |
pop ebx |
|
|
1126 |
ret |
|
|
1127 |
endp |
|
|
1128 |
|
|
|
1129 |
|
|
|
1130 |
proc tiff._.get_word _endianness |
|
|
1131 |
|
|
|
1132 |
lodsw |
|
|
1133 |
test [_endianness], 1 |
|
|
1134 |
jnz @f |
|
|
1135 |
ret |
|
|
1136 |
@@: |
|
|
1137 |
xchg al, ah |
|
|
1138 |
ret |
|
|
1139 |
endp |
|
|
1140 |
|
|
|
1141 |
|
|
|
1142 |
proc tiff._.get_dword _endianness |
|
|
1143 |
|
|
|
1144 |
lodsd |
|
|
1145 |
test [_endianness], 1 |
|
|
1146 |
jnz @f |
|
|
1147 |
ret |
|
|
1148 |
@@: |
|
|
1149 |
bswap eax |
|
|
1150 |
ret |
|
|
1151 |
|
|
|
1152 |
ret |
|
|
1153 |
endp |
|
|
1154 |
|
|
|
1155 |
|
| 2733 |
dunkaist |
1156 |
proc tiff._.pack_8a _img |
|
|
1157 |
mov ebx, [_img] |
|
|
1158 |
mov esi, [ebx + Image.Data] |
|
|
1159 |
mov edi, esi |
|
|
1160 |
mov ecx, [ebx + Image.Width] |
|
|
1161 |
imul ecx, [ebx + Image.Height] |
|
|
1162 |
@@: |
|
|
1163 |
lodsw |
|
|
1164 |
stosb |
|
|
1165 |
dec ecx |
|
|
1166 |
jnz @b |
|
|
1167 |
ret |
|
|
1168 |
endp |
|
|
1169 |
|
| 2388 |
dunkaist |
1170 |
;;================================================================================================;; |
|
|
1171 |
;;////////////////////////////////////////////////////////////////////////////////////////////////;; |
|
|
1172 |
;;================================================================================================;; |
|
|
1173 |
;! Below is private data you should never use directly from your code ;; |
|
|
1174 |
;;================================================================================================;; |
|
|
1175 |
;;////////////////////////////////////////////////////////////////////////////////////////////////;; |
|
|
1176 |
;;================================================================================================;; |
|
|
1177 |
tiff.IFDE_tag_table.begin: |
|
|
1178 |
.tag_100: dd 0x0100, tiff._.parse_IFDE.tag_100 ; image width |
|
|
1179 |
.tag_101: dd 0x0101, tiff._.parse_IFDE.tag_101 ; image height (this is called 'length' in spec) |
|
|
1180 |
.tag_102: dd 0x0102, tiff._.parse_IFDE.tag_102 ; bits per sample |
|
|
1181 |
.tag_103: dd 0x0103, tiff._.parse_IFDE.tag_103 ; compression |
|
|
1182 |
.tag_106: dd 0x0106, tiff._.parse_IFDE.tag_106 ; photometric interpretation |
|
|
1183 |
.tag_111: dd 0x0111, tiff._.parse_IFDE.tag_111 ; strip offsets |
|
|
1184 |
.tag_115: dd 0x0115, tiff._.parse_IFDE.tag_115 ; samples per pixel |
|
|
1185 |
.tag_116: dd 0x0116, tiff._.parse_IFDE.tag_116 ; rows per strip |
|
|
1186 |
.tag_117: dd 0x0117, tiff._.parse_IFDE.tag_117 ; strip byte counts |
| 2992 |
dunkaist |
1187 |
.tag_13d: dd 0x013d, tiff._.parse_IFDE.tag_13d ; predictor |
| 2388 |
dunkaist |
1188 |
.tag_140: dd 0x0140, tiff._.parse_IFDE.tag_140 ; color map |
| 2733 |
dunkaist |
1189 |
.tag_152: dd 0x0152, tiff._.parse_IFDE.tag_152 ; extra samples |
| 2388 |
dunkaist |
1190 |
tiff.IFDE_tag_table.end: |
|
|
1191 |
|
|
|
1192 |
include 'huffman.asm' ; huffman trees for ccitt1d compression method |