kolibrios/programs/develop/info3ds/convert_stl_3ds.inc

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;
; ”㭪樨 ¤«ï ¯à¥®¡à §®¢ ­¨ï ä ©«  *.stl ¢ *.3ds
;
; ‘âàãªâãà  á®§¤ ¢ ¥¬®£® ä ©«  *.3ds:
; CHUNK_MAIN (40+n+v+f)
; + CHUNK_OBJMESH (34+n+v+f)
; + CHUNK_OBJBLOCK (28+n+v+f)
; + CHUNK_TRIMESH (22+v+f)
; + CHUNK_VERTLIST (8+v)
; + CHUNK_FACELIST (8+f)
;
; ¢ ᪮¡ª å 㪠§ ­ë à §¬¥àë ¡«®ª®¢:
; n - ¯ ¬ïâì ¤«ï ¨¬¥­¨ ®¡ê¥ªâ 
; v - ¯ ¬ïâì ¤«ï ¢¥à設
; f - ¯ ¬ïâì ¤«ï £à ­¥©
; ”®à¬ â ¡¨­ à­®£® *.stl:
; char[80] - § £®«®¢®ª
; uint32 - ç¨á«® £à ­¥©
; ¤«ï ª ¦¤®© £à ­¨:
; float[3] - ¢¥ªâ®à ­®à¬ «¨
; float[9] - ¢¥à設ë 1,2,3
; uint16 -  âਡãâë
if lang eq ru_RU
txt_err_stl_open:
db '"STL',13,10
db '” ©« *.stl ®ç¥­ì ¡®«ì让." -tW',0
txt_err_stl_null_v:
db '"STL',13,10
db '‚¥àè¨­ë ­¥ ­ ©¤¥­ë." -tE',0
else
txt_err_stl_open:
db '"STL',13,10
db 'File *.stl is very large." -tW',0
txt_err_stl_null_v:
db '"STL',13,10
db 'Vertexes not found." -tE',0
end if
;output:
; eax - 㪠§ â¥«ì ­  áä®à¬¨à®¢ ­ë© ä ©« 3ds (¢ á«ãç ¥ ­¥ã¤ ç¨ 0)
; ecx - à §¬¥à áä®à¬¨à®¢ ­®£® ä ©«  3ds
align 4
proc convert_stl_3ds uses ebx edx edi esi, f_data:dword, f_size:dword
locals
c_mem dd ? ;¯ ¬ïâì ¤«ï ¯à¥®¡à §®¢ ­¨ï (convert memory)
c_size dd ? ;à §¬¥à ¯ ¬ï⨠¤«ï ¯à¥®¡à §®¢ ­¨© (convert memory size)
vert_c dd ? ;ç¨á«® ¢¥à設 (vertex count)
face_c dd ? ;ç¨á«® £à ­¥© (faces count)
endl
xor eax,eax
mov esi,[f_data]
cmp dword[esi],'soli'
jne .bin_stl
cmp word[esi+4],'d '
jne .bin_stl
jmp @f
.bin_stl:
;¯à®¢¥à塞 ä ©« ­  ¡¨­ à­ë© ä®à¬ â
mov ecx,[esi+80]
imul ecx,50
add ecx,84 ;§ £®«®¢®ª
cmp ecx,[f_size]
jne .no_stl
call convert_binary_stl
jmp .no_stl
@@:
;¢ ­ ç «¥ ­ ©¤¥­® 'solid '
stdcall txt_next_line, 80
mov eax,[f_data]
sub eax,esi
add eax,[f_size]
stdcall get_stl_vertex_count, esi,eax
or eax,eax
jnz @f
notify_window_run txt_err_stl_null_v
jmp .no_stl
@@:
cmp eax,0xffff
jle @f
notify_window_run txt_err_stl_open
mov eax,0xffff
@@:
mov [vert_c],eax
mov ecx,3
xor edx,edx
div ecx
mov [face_c],eax
shl eax,3
mov ecx,[vert_c]
imul ecx,12
lea ecx,[ecx+eax+40]
lea edx,[esi-6]
sub edx,[f_data]
cmp edx,2
jge @f
mov edx,2 ;¬¨­¨¬ «ì­ë© à §¬¥à ¤«ï ¨¬¥­¨ ®¡ê¥ªâ 
@@:
add ecx,edx ;for object name
mov [c_size],ecx
stdcall mem.Alloc,ecx
mov [c_mem],eax
mov ebx,eax
mov word[ebx],CHUNK_MAIN
mov dword[ebx+2],ecx
add ebx,6
;3d3d
mov word[ebx],CHUNK_OBJMESH
sub ecx,6
mov dword[ebx+2],ecx
add ebx,6
;4000
mov word[ebx],CHUNK_OBJBLOCK
sub ecx,6
mov dword[ebx+2],ecx
add ebx,6
push ecx esi
mov ecx,edx
mov edi,ebx
mov esi,[f_data]
add esi,6 ;¯à®¯ã᪠¥¬ 'solid '
rep movsb ;ª®¯¨à㥬 ¨¬ï ®¡ê¥ªâ 
mov byte[edi-1],0
add ebx,edx
pop esi ecx
;4100
mov word[ebx],CHUNK_TRIMESH
sub ecx,6
mov dword[ebx+2],ecx
add ebx,6
;4110
mov word[ebx],CHUNK_VERTLIST
mov dword[ebx+2],8 ;+ ç¨á«® ¢¥à設 * 12
add ebx,6
mov edx,ebx
mov word[edx],0 ;ª®«. ¢¥à設
add ebx,2
finit
.cycle0:
call txt_ignore_space
cmp dword[esi],'face'
jne .end_v
stdcall txt_next_line, 80
call txt_ignore_space
cmp dword[esi],'oute'
jne .end_v
stdcall txt_next_line, 80
mov ecx,3 ;3 â®çª¨ ­  1 £à ­ì
@@:
stdcall stl_vertex_init, ebx
or eax,eax
jz .end_v
add ebx,12
inc word[edx]
loop @b
mov eax,[vert_c]
cmp word[edx],ax
jge .end_v
call txt_ignore_space
cmp dword[esi],'endl'
jne .end_v
stdcall txt_next_line, 80
call txt_ignore_space
cmp dword[esi],'endf'
jne .end_v
stdcall txt_next_line, 80
jmp .cycle0
.end_v:
movzx eax,word[edx]
imul eax,12
add [edx-4],eax ;¨á¯à ¢«ï¥¬ à §¬¥à ¡«®ª  4110
;4120
mov word[ebx],CHUNK_FACELIST
mov ecx,[face_c]
mov edx,ecx
shl edx,3 ;ª®«. £à ­¥© * 8
add edx,8
mov [ebx+2],edx
add ebx,6
mov [ebx],cx ;ª®«. £à ­¥©
add ebx,2
xor eax,eax
@@:
mov [ebx],ax
inc eax
mov [ebx+2],ax
inc eax
mov [ebx+4],ax
inc eax
mov word[ebx+6],0 ; âਡãâë
add ebx,8
loop @b
mov eax,[c_mem]
mov ecx,[c_size]
.no_stl:
ret
endp
;input:
; esi - 㪠§ â¥«ì ­  ­ ç «® ä ©« 
; ecx - à §¬¥à ä ©« 
align 4
proc convert_binary_stl
locals
c_mem dd ? ;¯ ¬ïâì ¤«ï ¯à¥®¡à §®¢ ­¨ï (convert memory)
c_size dd ? ;à §¬¥à ¯ ¬ï⨠¤«ï ¯à¥®¡à §®¢ ­¨© (convert memory size)
vert_c dd ? ;ç¨á«® ¢¥à設 (vertex count)
face_c dd ? ;ç¨á«® £à ­¥© (faces count)
endl
mov eax,[esi+80]
or eax,eax
jnz @f
notify_window_run txt_err_stl_null_v
jmp .no_stl
@@:
cmp eax,0xffff/3
jle @f
notify_window_run txt_err_stl_open
mov eax,0xffff/3
@@:
mov [face_c],eax
mov ecx,eax
imul eax,3
mov [vert_c],eax
shl ecx,3
imul eax,12
lea ecx,[ecx+eax+40+4] ;+4 à §¬¥à ¤«ï ¨¬¥­¨ ®¡ê¥ªâ 
mov [c_size],ecx
stdcall mem.Alloc,ecx
mov [c_mem],eax
mov ebx,eax
mov word[ebx],CHUNK_MAIN
mov dword[ebx+2],ecx
add ebx,6
;3d3d
mov word[ebx],CHUNK_OBJMESH
sub ecx,6
mov dword[ebx+2],ecx
add ebx,6
;4000
mov word[ebx],CHUNK_OBJBLOCK
sub ecx,6
mov dword[ebx+2],ecx
add ebx,6
mov dword[ebx],'Stl' ;¨¬ï ®¡ê¥ªâ 
add ebx,4
;4100
mov word[ebx],CHUNK_TRIMESH
sub ecx,6
mov dword[ebx+2],ecx
add ebx,6
;4110
mov word[ebx],CHUNK_VERTLIST
mov dword[ebx+2],8 ;+ ç¨á«® ¢¥à設 * 12
add ebx,6
mov edx,ebx
mov ecx,[vert_c]
mov word[edx],cx ;ª®«. ¢¥à設
add ebx,2
add esi,80+4+12 ;¯à®¯ã᪠§ £®«®¢ª , ç¨á«  £à ­¥©, 1-£® ¢¥ªâ®à  ­®à¬ «¥©
mov edi,ebx
mov eax,[face_c]
@@: ;横« ¯® £à ­ï¬
mov ecx,9
rep movsd ;ª®¯¨à㥬 ª®®à¤¨­ âë 3-å ¢¥à設
add esi,14 ;¯à®¯ã᪠¢¥ªâ®à  ­®à¬ «¥© ¨  âਡã⮢
dec eax
jnz @b
mov ebx,edi
movzx eax,word[edx]
imul eax,12
add [edx-4],eax ;¨á¯à ¢«ï¥¬ à §¬¥à ¡«®ª  4110
;4120
mov word[ebx],CHUNK_FACELIST
mov ecx,[face_c]
mov edx,ecx
shl edx,3 ;ª®«. £à ­¥© * 8
add edx,8
mov [ebx+2],edx
add ebx,6
mov [ebx],cx ;ª®«. £à ­¥©
add ebx,2
xor eax,eax
@@:
mov [ebx],ax
inc eax
mov [ebx+2],ax
inc eax
mov [ebx+4],ax
inc eax
mov word[ebx+6],0 ; âਡãâë
add ebx,8
loop @b
mov eax,[c_mem]
mov ecx,[c_size]
.no_stl:
ret
endp
;output:
; eax - vertex count
align 4
proc get_stl_vertex_count uses ebx ecx edi, f_data:dword, f_size:dword
mov al,'v'
xor ebx,ebx
mov ecx,[f_size]
mov edi,[f_data]
.cycle0:
repne scasb
cmp dword[edi],'erte'
jne @f
inc ebx
add edi,4
sub ecx,4
cmp ecx,4
jg .cycle0
@@:
mov eax,ebx
ret
endp
;input:
; esi - input description text
; ppoi - pointer to vertex struct
;output:
; eax - 0 (if error init) or 1
; esi - output description text
align 4
proc stl_vertex_init uses ebx ecx edi, ppoi:dword
call txt_ignore_space
cmp dword[esi],'vert'
jne .err_init
cmp word[esi+4],'ex'
jne .err_init
add esi,6
mov ebx,[ppoi]
call txt_copy_data
call String_to_DoubleFloat
fld qword[Data_Double]
fstp dword[ebx] ;coord X
call txt_copy_data
call String_to_DoubleFloat
fld qword[Data_Double]
fstp dword[ebx+4] ;coord X
call txt_copy_data
call String_to_DoubleFloat
fld qword[Data_Double]
fstp dword[ebx+8] ;coord Z
stdcall txt_next_line, 80
jmp @f
.err_init:
xor eax,eax
jmp .end_f
@@:
xor eax,eax
inc eax
.end_f:
ret
endp
;input:
; esi - 㪠§ â¥«ì ­  ­ ç «® áâப¨ á ¯à®¡¥« ¬¨
;output:
; al - destroy
; ecx - destroy
; esi - 㪠§ â¥«ì ­  ¯¥à¢ë© ­¥¯à®¡¥«ì­ë© ᨬ¢®«
align 4
txt_ignore_space:
mov ecx,64 ;§ é¨â  ®â § æ¨ª«¨¢ ­¨ï
@@:
lodsb
cmp al,' '
jne @f
loop @b
@@:
dec esi
ret
;input:
; esi - 㪠§ â¥«ì ­  áâபã á ç¨á«®¬ (¯à®¡¥«ë ¢ ­ ç «¥ áâப¨ ¨£­®à¨àãîâìáï)
;output:
; al - destroy
; ecx - destroy
; edi - destroy
; esi - 㪠§ â¥«ì ­  ª®­¥æ ª®¯¨à®¢ ­­®£® ç¨á« 
; Data_String - áâப  á ç¨á«®¬ ¨§ esi
align 4
txt_copy_data:
call txt_ignore_space
mov ecx,32
mov edi,esi
@@:
lodsb
or al,al
jz @f
cmp al,' '
je @f
cmp al,13
je @f
loop @b
@@:
mov esi,edi
sub ecx,32
neg ecx
mov edi,Data_String
rep movsb
mov byte[edi],0
ret
;input:
; esi - text pointer
align 4
proc txt_next_line uses eax ecx edi, mlen:dword
mov al,13
mov ecx,[mlen]
mov edi,esi
repne scasb
cmp byte[edi],10
jne @f
inc edi
@@:
mov esi,edi
ret
endp