639 lines
13 KiB
NASM
639 lines
13 KiB
NASM
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; IMGVIEW.ASM
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;
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; This program displays jpeg images. The window can be resized.
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;
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; Version 0.0 END OF 2003
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; Octavio Vega
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; Version 0.1 7th March 2004
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; Mike Hibbett ( very small part! )
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; Version 0.11 7th April 2004
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; Ville Turjanmaa ( 'set_as_bgr' function )
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; Version 0.12 29th May 2004
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; Ivan Poddubny (correct "set_as_bgr"+parameters+boot+...)
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; Version 0.12 30 de mayo 2004
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; Octavio Vega
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; bugs correction and slideshow
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; version 0.13 3 de junio 2004
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; Octavio Vega
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; unos retoques
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; version 0.14 10th August 2004
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; Mike Hibbett Added setting default colours
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;
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memsize=20000h
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org 0
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PARAMS = memsize - 1024
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use32
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db 'MENUET01' ; 8 byte id
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dd 0x01 ; header version
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dd START ; start of code
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dd I_END ; size of image
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dd memsize ; memory for app
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dd memsize - 1024 ; esp
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dd PARAMS , 0x0 ; I_Param , I_Icon
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include 'lang.inc'
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stack_size=4096 + 1024
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START: ; start of execution
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cmp [PARAMS], byte 0
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jne check_parameters
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; Calculate the 'free' memory available
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; to the application, and create the malloc block from it
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.l1:
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mov ecx,memsize-fin-stack_size
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mov edi,fin
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call add_mem
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; Get some memory
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mov ecx,16384
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call malloc
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mov [work_area],edi
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call colorprecalc ;inicializa tablas usadas para pasar de ybr a bgr
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call draw_window
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call read_string.rs_done
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still:
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push still
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mov ebx,100 ;1 second
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mov eax,23 ; wait here for event
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int 0x40
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cmp eax,1 ; redraw request ?
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je draw_window
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cmp eax,2 ; key in buffer ?
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je read_string
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cmp eax,3 ; button in buffer ?
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je button
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jmp display_next
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button: ; BUTTON
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mov eax,17
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int 0x40
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cmp ah,3
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je set_as_bgr2
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cmp ah,2
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je slideshow
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cmp ah,1 ; CLOSE PROGRAM
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jne close_program.exit
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close_program:
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mov eax,-1
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int 0x40
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.exit:
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ret
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; Put a 'chunk' of the image on the window
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put_image:
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pushad
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lea ebp,[edx+eax+7]
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cmp [winxs],bp
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jc .l1
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lea ebp,[ecx+ebx+20+2+17]
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cmp [winys],bp
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jc .l1
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add eax,5 ; offset for boarder
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add ebx,20 ; offset for title bar
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push ax ; pox
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push bx ; pos
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push cx ; size
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push dx ; size
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pop ecx
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pop edx
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mov ebx,edi
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mov eax,7
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int 40h ; Put image function
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.l1:
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popad
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ret
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;******************************************************************************
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check_parameters:
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cmp [PARAMS], dword "BOOT" ; received BOOT parameter -> goto handler
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je boot_set_background
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mov edi, name_string ; clear string with file name
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mov al, 0
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mov ecx, 100
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rep stosb
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mov ecx, 100 ; calculate length of parameter string
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mov edi, PARAMS
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repne scasb
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sub edi, PARAMS
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mov ecx, edi
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mov esi, PARAMS ; copy parameters to file name
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mov edi, name_string
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cld
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rep movsb
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jmp START.l1 ; return to beggining of the progra
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;******************************************************************************
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set_default_colours:
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pusha
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mov eax,6 ; load default color map
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mov ebx,defcol
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mov ecx,0
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mov edx,-1
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mov esi,0x10000
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int 0x40
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mov eax,48 ; set default color map
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mov ebx,2
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mov ecx,0x10000
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mov edx,10*4
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int 0x40
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popa
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ret
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defcol db 'DEFAULT.DTP'
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boot_set_background:
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call set_default_colours
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mov ecx,memsize-fin-stack_size ; size
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mov edi,fin ; pointer
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call add_mem ; mark memory from fin to 0x100000-1024 as free
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; Get some memory
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mov ecx,16384 ; get 16 Kb of memory
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call malloc ; returns pointer in edi
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mov [work_area],edi ; save it
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call colorprecalc ; calculate colors
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mov esi,name_string
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call open
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test eax,eax
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jz close_program
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call jpeg_info
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mov dword [jpeg_st],ebp
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call set_as_bgr2 ; set wallpaper
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jmp close_program ; close the program right now
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;******************************************************************************
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;******************************************************************************
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set_as_bgr2:
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mov ebp,dword[jpeg_st]
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test ebp,ebp
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jz .end
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mov dword [ebp+draw_ptr],put_chunk_to_bgr
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call jpeg_display
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mov eax, 15
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mov ebx, 1
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mov ecx, [ebp + x_size]
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mov edx, [ebp + y_size]
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int 0x40
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; Stretch the image to fit
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mov eax, 15
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mov ebx, 4
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mov ecx, 2
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int 0x40
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mov eax, 15
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mov ebx, 3
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int 0x40
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.end:
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ret
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;******************************************************************************
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put_chunk_to_bgr:
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pushad
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mov [x_pointer], edi
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mov esi, ecx
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imul esi, 3
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mov [x_numofbytes], esi
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mov ecx, [ebp + x_size]
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imul ecx, ebx
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add ecx, eax
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imul ecx, 3
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mov [x_offset], ecx
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mov [x_counter], edx
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mov eax, [ebp + x_size]
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imul eax, 3
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mov [x_numofb2], eax
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.new_string:
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mov eax, 15
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mov ebx, 5
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mov ecx, [x_pointer]
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mov edx, [x_offset]
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mov esi, [x_numofbytes]
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int 0x40
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mov eax, [x_numofbytes]
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add [x_pointer], eax
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mov eax, [x_numofb2]
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add [x_offset], eax
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dec [x_counter]
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jnz .new_string
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popad
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ret
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;******************************************************************************
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; *********************************************
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; ******* WINDOW DEFINITIONS AND DRAW ********
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; *********************************************
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draw_window:
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mov eax,12
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mov ebx,1
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int 0x40
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; Draw the window to the appropriate size - it may have
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; been resized by the user
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mov eax, 0
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cmp [winxs], ax
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jne dw_001
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; Give the screen some inital defaults
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mov ax, 400
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mov [winxs], ax
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mov ax, 300
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mov [winys], ax
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mov ax, 100
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mov [winxo], ax
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mov [winyo], ax
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jmp dw_002
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dw_001:
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mov eax, 9
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mov ebx, memsize - 1024
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mov ecx, -1
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int 0x40
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mov eax, [ebx + 34]
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mov [winxo], ax
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mov eax, [ebx + 38]
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mov [winyo], ax
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mov eax, [ebx + 42]
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mov [winxs], ax
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mov eax, [ebx + 46]
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mov [winys], ax
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dw_002:
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mov bx, [winxo]
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shl ebx, 16
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mov bx, [winxs]
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mov cx, [winyo]
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shl ecx, 16
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mov cx, [winys]
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mov eax,0 ; DRAW WINDOW
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mov edx,[wcolor]
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add edx,0x02000000
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mov esi,0x80557799
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mov edi,0x00557799
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int 0x40
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mov eax,4 ; WINDOW LABEL
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mov ebx,8*65536+8
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mov ecx,0x00ffffff
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mov edx,labelt
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mov esi,labellen-labelt
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int 0x40
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mov eax,8 ; CLOSE BUTTON
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mov bx, [winxs]
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sub bx, 19
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shl ebx, 16
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add ebx, 12
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mov ecx,5*65536+12
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mov edx,1
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mov esi,0x557799
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int 0x40
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; draw status bar
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mov eax, 13
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movzx ebx, word [winxs]
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sub ebx, 5
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add ebx, 4*65536
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mov cx, [winys]
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sub ecx, 19
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shl ecx, 16
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add ecx, 3
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mov edx, 0x00557799
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int 0x40
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mov eax,8 ; BUTTON 2: filename
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mov ebx,4*65536+55
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mov cx, [winys]
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sub cx, 16
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shl ecx, 16
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add ecx, 12
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mov esi, 0x00557799
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mov edx,2
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int 0x40
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mov eax,4 ; Button text
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movzx ebx, word [winys]
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sub ebx, 13
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add ebx, 6*65536
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mov ecx,0x00ffffff
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mov edx,setname
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mov esi,setnamelen-setname
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int 0x40
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mov eax,8 ; BUTTON 3: set as background
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mov bx, [winxs]
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sub bx, 60
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shl ebx, 16
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mov bx,55
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mov cx, [winys]
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sub cx, 16
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shl ecx, 16
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add ecx, 12
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mov esi, 0x00557799
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mov edx,3
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int 0x40
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mov eax,4 ; Button text
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movzx ebx, word [winxs]
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sub ebx, 60
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shl ebx,16
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mov bx, word [winys]
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sub bx,13
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mov ecx,0x00ffffff
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mov edx,setbgr
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mov esi,setbgrlen-setbgr
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int 0x40
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call print_strings
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call load_image
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mov eax,12 ; function 12:tell os about windowdraw
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mov ebx,2 ; 2, end of draw
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int 0x40
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ret
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; Read in the image file name.
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read_string:
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movzx edi,byte[name_string.cursor]
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add edi,name_string
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mov eax,2
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int 0x40 ; Get the key value
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shr eax,8
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cmp eax,13 ; Return key ends input
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je .rs_done
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cmp eax,8
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jnz .nobsl
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cmp edi,name_string
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je .exit
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dec edi
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mov [edi],byte 0;'_'
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dec byte[name_string.cursor]
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jmp print_strings
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.exit: ret
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.nobsl:
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cmp eax,31
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jbe .exit
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cmp eax,97
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jb .keyok
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sub eax,32
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.keyok:
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mov ah,0
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stosw
|
||
|
|
cmp edi,name_string.end
|
||
|
|
jnc print_strings
|
||
|
|
inc byte[name_string.cursor]
|
||
|
|
jmp print_strings
|
||
|
|
.rs_done:
|
||
|
|
call print_strings
|
||
|
|
mov esi,name_string
|
||
|
|
call open
|
||
|
|
test eax,eax
|
||
|
|
jz .exit
|
||
|
|
call jpeg_info
|
||
|
|
test ebp,ebp
|
||
|
|
jz close
|
||
|
|
xchg [jpeg_st],ebp
|
||
|
|
call jpeg_close
|
||
|
|
|
||
|
|
load_image:
|
||
|
|
|
||
|
|
mov eax,13 ; clear picture area
|
||
|
|
movzx ebx, word [winxs]
|
||
|
|
sub ebx, 7
|
||
|
|
add ebx, 4 * 65536
|
||
|
|
movzx ecx, word [winys]
|
||
|
|
sub ecx, 39
|
||
|
|
add ecx, 20 * 65536
|
||
|
|
|
||
|
|
mov edx,0
|
||
|
|
int 0x40
|
||
|
|
mov ebp,[jpeg_st]
|
||
|
|
test ebp,ebp
|
||
|
|
jz .exit
|
||
|
|
mov dword [ebp+draw_ptr],put_image
|
||
|
|
jmp jpeg_display
|
||
|
|
.exit: ret
|
||
|
|
|
||
|
|
print_strings:
|
||
|
|
pusha
|
||
|
|
mov eax,13 ; clear text area
|
||
|
|
movzx ebx, word [winxs]
|
||
|
|
sub ebx, 64+58
|
||
|
|
add ebx, 60*65536
|
||
|
|
mov cx, [winys]
|
||
|
|
sub cx, 16
|
||
|
|
shl ecx, 16
|
||
|
|
add ecx, 12
|
||
|
|
mov edx,0xffffff
|
||
|
|
int 0x40
|
||
|
|
|
||
|
|
mov eax,4 ;
|
||
|
|
movzx ebx, word [winys]
|
||
|
|
sub ebx, 14
|
||
|
|
add ebx, 60*65536
|
||
|
|
mov ecx,0x000000
|
||
|
|
mov edx,name_string
|
||
|
|
mov esi,60
|
||
|
|
int 0x40
|
||
|
|
popa
|
||
|
|
ret
|
||
|
|
|
||
|
|
slideshow:
|
||
|
|
test dword[file_dir],-1
|
||
|
|
jnz .exit
|
||
|
|
test dword[jpeg_st],-1
|
||
|
|
jz .exit
|
||
|
|
mov esi,name_string
|
||
|
|
movzx ecx,byte[name_string.cursor]
|
||
|
|
.l1:
|
||
|
|
cmp byte[esi+ecx],'/'
|
||
|
|
je .l2
|
||
|
|
loop .l1
|
||
|
|
.exit:
|
||
|
|
ret
|
||
|
|
.l2:
|
||
|
|
mov byte[esi+ecx],0
|
||
|
|
call open
|
||
|
|
mov byte[esi+ecx],'/'
|
||
|
|
test eax,eax
|
||
|
|
jz .exit
|
||
|
|
|
||
|
|
mov dword[eax+file_handler.size],-1 ;directory size is always 0
|
||
|
|
mov [file_dir],eax
|
||
|
|
inc cl
|
||
|
|
mov [name_string.cursor],cl
|
||
|
|
|
||
|
|
display_next:
|
||
|
|
mov eax,[file_dir]
|
||
|
|
test eax,eax
|
||
|
|
jnz .l1
|
||
|
|
ret
|
||
|
|
.l1:
|
||
|
|
mov ecx,32
|
||
|
|
sub esp,ecx
|
||
|
|
mov edi,esp
|
||
|
|
call read
|
||
|
|
cmp ecx,32
|
||
|
|
jnc .l11
|
||
|
|
.l10:
|
||
|
|
add esp,32
|
||
|
|
mov eax,dword[file_dir]
|
||
|
|
mov dword[file_dir],0
|
||
|
|
jmp close
|
||
|
|
.l11:
|
||
|
|
mov esi,esp
|
||
|
|
movzx edi,byte[name_string.cursor]
|
||
|
|
add edi,name_string
|
||
|
|
lodsb
|
||
|
|
cmp al,0
|
||
|
|
je .l10
|
||
|
|
cmp al,229
|
||
|
|
jne .l0
|
||
|
|
add esp,32
|
||
|
|
jmp display_next
|
||
|
|
.l0:
|
||
|
|
stosb
|
||
|
|
mov cl,7
|
||
|
|
.l2:
|
||
|
|
lodsb
|
||
|
|
cmp al,32
|
||
|
|
jna .l3
|
||
|
|
stosb
|
||
|
|
loop .l2
|
||
|
|
.l3:
|
||
|
|
lea esi,[esp+8]
|
||
|
|
mov al,'.'
|
||
|
|
stosb
|
||
|
|
mov cl,3
|
||
|
|
.l4:
|
||
|
|
lodsb
|
||
|
|
cmp al,32
|
||
|
|
jna .l5
|
||
|
|
stosb
|
||
|
|
loop .l4
|
||
|
|
.l5:
|
||
|
|
mov al,0
|
||
|
|
stosb
|
||
|
|
cmp edi,name_string.end
|
||
|
|
jc .l5
|
||
|
|
add esp,32
|
||
|
|
call print_strings
|
||
|
|
mov esi,name_string
|
||
|
|
call open
|
||
|
|
test eax,eax
|
||
|
|
jz display_next
|
||
|
|
call jpeg_info
|
||
|
|
test ebp,ebp
|
||
|
|
jnz .l6
|
||
|
|
call close
|
||
|
|
jmp display_next
|
||
|
|
.l6:
|
||
|
|
mov dword[ebp+draw_ptr],put_image
|
||
|
|
push ebp
|
||
|
|
xchg [jpeg_st],ebp
|
||
|
|
call jpeg_close
|
||
|
|
pop ebp
|
||
|
|
jmp jpeg_display
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
include 'filelib.asm'
|
||
|
|
include 'memlib.asm'
|
||
|
|
include 'jpeglib.asm'
|
||
|
|
|
||
|
|
|
||
|
|
; DATA AREA
|
||
|
|
|
||
|
|
wcolor dd 0x000000
|
||
|
|
labelt db 'Jpegview v0.14'
|
||
|
|
labellen:
|
||
|
|
setname db 'SLIDESHOW'
|
||
|
|
setnamelen:
|
||
|
|
|
||
|
|
setbgr db ' BGR '
|
||
|
|
setbgrlen:
|
||
|
|
|
||
|
|
x_pointer dd 0
|
||
|
|
x_offset dd 0
|
||
|
|
x_numofbytes dd 0
|
||
|
|
x_numofb2 dd 0
|
||
|
|
x_counter dd 0
|
||
|
|
winxo: dw 0
|
||
|
|
winyo: dw 0
|
||
|
|
winxs: dw 0
|
||
|
|
winys: dw 0
|
||
|
|
jpeg_st: dd 0
|
||
|
|
file_dir: dd 0
|
||
|
|
work_area: dd 0
|
||
|
|
tcolor dd 0x000000
|
||
|
|
btcolor dd 0x224466+0x808080
|
||
|
|
name_string: db '/rd/1/jpegview.jpg',0
|
||
|
|
|
||
|
|
rb 100
|
||
|
|
.end:
|
||
|
|
.cursor: db 19
|
||
|
|
.cursor2: db 0
|
||
|
|
|
||
|
|
align 4
|
||
|
|
|
||
|
|
rgb16: db 0,4,8,13,17,21,25,29,34,38,42,46,50,55,59,63
|
||
|
|
rgb4: db 0,21,42,63
|
||
|
|
|
||
|
|
include 'jpegdat.asm'
|
||
|
|
|
||
|
|
align 4
|
||
|
|
|
||
|
|
iniciomemoria:
|
||
|
|
dd -(iniciomemoria+4),-(iniciomemoria+4),(iniciomemoria+4),.l1,0
|
||
|
|
.l1 dd 0
|
||
|
|
|
||
|
|
fin:
|
||
|
|
I_END:
|
||
|
|
|
||
|
|
|
||
|
|
|