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add new library 'exif.obj'

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git-svn-id: svn://kolibrios.org@4994 a494cfbc-eb01-0410-851d-a64ba20cac60
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IgorA
2014-07-15 14:57:31 +00:00
parent e72c474426
commit d7cac76dad
5 changed files with 839 additions and 0 deletions
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253
programs/develop/libraries/exif/trunk/exif.asm Normal file
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format MS COFF
public EXPORTS
section '.flat' code readable align 16
include '../../../../macros.inc'
include '../../../../proc32.inc'
;---------
offs_m_or_i equ 8 ;ᬥ饭<E1ACA5><E9A5AD> <20><>ࠬ<EFBFBD><E0A0AC><EFBFBD><EFBFBD> 'MM' <20><><EFBFBD> 'II' (Motorola, Intel)
offs_tag_count equ 16 ;ᬥ饭<E1ACA5><E9A5AD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢠ ⥣<><E2A5A3>
offs_tag_0 equ 18 ;ᬥ饭<E1ACA5><E9A5AD> 0-<2D><> ⥣<>
tag_size equ 12 ;ࠧ<><E0A0A7><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⥣<>
;<3B><>ଠ<EFBFBD><E0ACA0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
tag_format_ui1b equ 1 ;unsigned integer 1 byte
tag_format_text equ 2 ;ascii string
tag_format_ui2b equ 3 ;unsigned integer 2 byte
tag_format_ui4b equ 4 ;unsigned integer 4 byte
tag_format_ui8b equ 5 ;unsigned integer 8 byte
tag_format_si1b equ 6 ;signed integer 1 byte
tag_format_undef equ 7 ;undefined
tag_format_si2b equ 8 ;signed integer 2 byte
tag_format_si4b equ 9 ;signed integer 4 byte
tag_format_si8b equ 10 ;signed integer 8 byte
tag_format_f4b equ 11 ;float 4 byte
tag_format_f8b equ 12 ;float 8 byte
align 4
txt_dp db ': ',0
;
align 4
exif_tag_numbers:
db 0x01,0x0e,'Image description',0
db 0x01,0x0f,'Manufacturer of digicam',0
db 0x01,0x10,'Model',0
db 0x01,0x12,'Orientation',0
db 0x01,0x1a,'X resolution',0
db 0x01,0x1b,'Y resolution',0
db 0x01,0x28,'Resolution unit',0
db 0x01,0x31,'Software',0
db 0x01,0x32,'Date time',0
db 0x01,0x3e,'White point',0
db 0x01,0x3f,'Primary chromaticities',0
db 0x02,0x11,'YCbCrCoefficients',0
db 0x02,0x13,'YCbCrPositioning',0
db 0x02,0x14,'Reference black white',0
db 0x82,0x98,'Copyright',0
db 0x87,0x69,'Exif offset',0
db 0x88,0x25,'GPS Info',0
dw 0
;input:
; bof - 㪠<><E3AAA0>⥫<EFBFBD> <20><> <20><>砫<EFBFBD> 䠩<><E4A0A9>
; app1 - 㪠<><E3AAA0>⥫<EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> exif.app1
;output:
; app1 - 㪠<><E3AAA0>⥫<EFBFBD> <20><> <20><>砫<EFBFBD> exif.app1 (<28><><EFBFBD> 0 <20>᫨ <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><>ଠ<EFBFBD> 䠩<><E4A0A9> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>ন<EFBFBD><E0A6A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
align 4
proc exif_get_app1 uses eax ebx edi, bof:dword, app1:dword
mov eax,[bof]
mov edi,[app1]
;䠩<> <20> <20><>ଠ<EFBFBD><E0ACA0> jpg?
cmp word[eax],0xd8ff
jne .no_exif
add eax,2
;䠩<> ᮤ<>ন<EFBFBD> exif.app0?
cmp word[eax],0xe0ff
jne @f
add eax,2
movzx ebx,word[eax]
ror bx,8 ;<3B>ᥣ<EFBFBD><E1A5A3> <20><> ⠪ <20><><EFBFBD><EFBFBD>?
add eax,ebx
@@:
;䠩<> ᮤ<>ন<EFBFBD> exif.app1?
cmp word[eax],0xe1ff
jne .no_exif
add eax,2
mov [edi],eax
jmp @f
.no_exif:
mov dword[edi],0
@@:
ret
endp
;input:
; app1 - 㪠<><E3AAA0>⥫<EFBFBD> <20><> <20><>砫<EFBFBD> exif.app1
; num - <20><><EFBFBD>浪<EFBFBD><EFA4AA><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> ⥣<> (<28><>稭<EFBFBD><E7A8AD><EFBFBD><EFBFBD><EFBFBD> <20> 1)
; txt - 㪠<><E3AAA0>⥫<EFBFBD> <20><> ⥪<><E2A5AA>, <20>㤠 <20>㤥<EFBFBD> <20><><EFBFBD><EFBFBD>ᠭ<EFBFBD> <20><><EFBFBD>祭<EFBFBD><E7A5AD>
; t_max - <20><><EFBFBD>ᨬ<EFBFBD><E1A8AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ࠧ<><E0A0A7><EFBFBD> ⥪<><E2A5AA><EFBFBD>
align 4
proc exif_get_app1_tag, app1:dword, num:dword, txt:dword, t_max:dword
pushad
mov eax,[app1]
mov edi,[txt]
mov ecx,[num]
xor edx,edx
cmp eax,edx
je .end_f ;<3B>᫨ <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 㪠<><E3AAA0>⥫<EFBFBD> <20><> <20><>砫<EFBFBD> exif.app1
cmp ecx,edx
jle .end_f ;<3B>᫨ <20><><EFBFBD>浪<EFBFBD><EFA4AA><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> ⥣<> <= 0
mov byte[edi],0
cmp word[eax+offs_m_or_i],'II'
je @f
inc edx ;if 'MM' edx=1
@@:
;<3B>஢<EFBFBD><E0AEA2>塞 <20><>᫮ ⥣<><E2A5A3>
movzx ebx,word[eax+offs_tag_count]
bt edx,0
jnc @f
ror bx,8
@@:
cmp ecx,ebx
jg .end_f ;<3B>᫨ <20><><EFBFBD><EFBFBD><EFBFBD> ⥣<> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 祬 <20><> <20><><EFBFBD><EFBFBD> <20> 䠩<><E4A0A9>
;<3B><><EFBFBD><EFBFBD>室<EFBFBD><E5AEA4> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⥣
dec ecx
imul ecx,tag_size
add eax,offs_tag_0
add eax,ecx
;<3B><>⠥<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>祭<EFBFBD><E7A5AD> ⥣<>
push exif_tag_numbers
pop esi
.next_tag:
mov bx,word[esi]
cmp bx,0
je .tag_unknown ;⥣ <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
bt edx,0
jc @f
ror bx,8
@@:
cmp word[eax],bx
je .found
inc esi
@@:
inc esi
cmp byte[esi],0
jne @b
inc esi
jmp .next_tag
.found:
;<3B><><EFBFBD><EFBFBD><EFBFBD>㥬 <20><>ப<EFBFBD>
add esi,2
stdcall str_n_cat,edi,esi,[t_max]
;<3B><>⠥<EFBFBD> <20><><EFBFBD><EFBFBD>ଠ<EFBFBD><E0ACA0><EFBFBD> <20> ⥣<>
mov bx,tag_format_text
bt edx,0
jnc @f
ror bx,8
@@:
cmp word[eax+2],bx
jne .tag_02
stdcall str_n_cat,edi,txt_dp,[t_max]
;<3B>஢<EFBFBD><E0AEA2>塞 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ப<EFBFBD>
mov ebx,dword[eax+4]
bt edx,0
jnc @f
ror bx,8
ror ebx,16
ror bx,8
@@:
cmp ebx,4
jg @f
;<3B>᫨ <20><>ப<EFBFBD> <20><><EFBFBD><EFBFBD>頥<EFBFBD><E9A0A5><EFBFBD> <20> 4 ᨬ<><E1A8AC><EFBFBD><EFBFBD>
mov esi,eax
add esi,8
stdcall str_n_cat,edi,esi,[t_max]
jmp .end_f
;<3B>᫨ <20><>ப<EFBFBD> <20><> <20><><EFBFBD><EFBFBD>頥<EFBFBD><E9A0A5><EFBFBD> <20> 4 ᨬ<><E1A8AC><EFBFBD><EFBFBD>
@@:
mov esi,dword[eax+8]
bt edx,0
jnc @f
ror si,8
ror esi,16
ror si,8
@@:
add esi,offs_m_or_i
add esi,[app1]
stdcall str_n_cat,edi,esi,[t_max]
;;;jmp .end_f
.tag_02:
jmp .end_f
.tag_unknown:
mov dword[edi],'???'
mov byte[edi+3],0
.end_f:
popad
ret
endp
align 4
proc exif_get_image_160_120 uses edi, app1:dword
mov edi,[app1]
ret
endp
align 4
proc str_n_cat uses eax ecx edi esi, str1:dword, str2:dword, n:dword
mov esi,dword[str2]
mov ecx,dword[n]
mov edi,dword[str1]
stdcall str_len,edi
add edi,eax
cld
repne movsb
mov byte[edi],0
ret
endp
;output:
; eax = strlen
align 4
proc str_len, str1:dword
mov eax,[str1]
@@:
cmp byte[eax],0
je @f
inc eax
jmp @b
@@:
sub eax,[str1]
ret
endp
align 16
EXPORTS:
dd sz_exif_get_app1, exif_get_app1
dd sz_exif_get_app1_tag, exif_get_app1_tag
;dd sz_exif_get_image_160_120, exif_get_image_160_120
dd 0,0
sz_exif_get_app1 db 'exif_get_app1',0
sz_exif_get_app1_tag db 'exif_get_app1_tag',0
;sz_exif_get_image_160_120 db 'exif_get_image_160_120',0