748 lines
18 KiB
NASM
748 lines
18 KiB
NASM
; 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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; version 0.15 24th August 2006
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; diamond (rewritten to function 70)
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; version 0.16 19th May 2007
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; Mario79
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; 1) correction for changed function 15,
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; 2) use monochrome background if free memory there are less than 2 MB
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; 3) use COL0 - COL9 boot parameter
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; 0=black,1=white,2=green,3=lilas,4=grey
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; 5=light-blue,6=blue,7=salad,8=pink,9=yellow
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; version 0.17 17th June 2007
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; diamond (background definition now uses shared memory)
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; version 0.18 9th August 2007
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; Mario79
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; Open file with parameter in patch:
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; Size of parameter - 4 bytes. Parameter starts with the character "\",
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; the unused characters are filled by a blank (ASCII 20h).
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; '\T /hd0/1/1.jpg' - set background, mode: tile
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; '\S /hd0/1/1.jpg' - set background, mode: stretch
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memsize=20000h
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org 0
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PARAMS = memsize - 1024
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appname equ 'Jpegview '
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version equ '0.18'
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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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stack_size=4096 + 1024
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include '..\..\..\macros.inc'
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START: ; start of execution
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mcall 68,11 ; initialize heap
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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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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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mcall
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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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mcall
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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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mcall
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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,2 ; offset for boarder
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add ebx,2 ; 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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mcall ; 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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cmp [PARAMS], word "CO"
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jne @f
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cmp [PARAMS+2], byte "L"
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je boot_set_background
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@@:
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cmp byte [PARAMS], "\"
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jne @f
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cmp [PARAMS+1], byte "S"
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jne .tile
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mov [drawing_mode],2
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jmp @f
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.tile:
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cmp [PARAMS+1], byte "T"
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jne @f
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mov [drawing_mode],1
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@@:
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cmp byte [PARAMS], 1
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jz ipc_service
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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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cmp byte [PARAMS], "\"
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jne @f
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add esi,4
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sub ecx,4
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@@:
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cld
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rep movsb
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cmp byte [PARAMS], "\"
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je boot_set_background.1
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jmp START.l1 ; return to beggining of the progra
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;******************************************************************************
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boot_set_background:
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mov [drawing_mode],2
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.1:
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mcall 18,16
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cmp eax,1024*2
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jb set_mono
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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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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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set_mono:
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mov eax, 15
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mov ebx, 1
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mov ecx, 1
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mov edx, 1
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mcall
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cmp [PARAMS], dword "BOOT" ; received BOOT parameter -> goto handler
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jne @f
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.green:
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mov ecx,mono+6
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jmp .set
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@@:
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; cmp [PARAMS], word "CO" ; received BOOT parameter -> goto handler
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; jne .green
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xor ecx,ecx
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mov cl,[PARAMS+3]
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sub cl,0x30
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cmp ecx,0
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jb .green
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cmp ecx,9
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ja .green
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imul ecx,3
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add ecx,mono
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.set:
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mcall 15,5, ,0,3
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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, 1
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mcall
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mov eax, 15
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mov ebx, 3
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mcall
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jmp close_program
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mono:
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db 0,0,0 ; black
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db 255,255,255 ; white
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db 128,128,0 ; green
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db 240,202,166 ; lilas
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db 192,192,192 ; grey
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db 255,255,0 ; light-blue
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db 255,0,0 ; blue
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db 192,220,192 ; salad
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db 255,0,255 ; pink
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db 0,255,255 ; yellow
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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 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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mcall
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mov ebx, 6
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mcall
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test eax, eax
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jz .end
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mov [ipc_mem_out], eax
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mov dword [ebp+draw_ptr],put_chunk_to_mem
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call jpeg_display
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mov eax, 15
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mov ebx, 7
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mov ecx, [ipc_mem_out]
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mcall
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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, [drawing_mode] ;2
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mcall
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mov eax, 15
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mov ebx, 3
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mcall
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.end:
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ret
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;******************************************************************************
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ipc_service:
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mov esi, PARAMS+1
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xor eax, eax
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xor ecx, ecx
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@@:
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lodsb
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test al, al
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jz @f
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lea ecx, [ecx*5]
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lea ecx, [ecx*2+eax-'0']
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jmp @b
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@@:
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add ecx, 16
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mov edx, ecx
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mcall 68, 12
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test eax, eax
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jnz @f
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.exit:
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mcall -1
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@@:
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mov ecx, eax
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and dword [ecx], 0
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mov dword [ecx+4], 8
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mov [ipc_mem], ecx
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mcall 60, 1
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mcall 40, 1 shl 6
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mcall 23, 500 ; wait up to 5 seconds for IPC message
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test eax, eax
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jz .exit
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; we got message with JPEG data, now decode it
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mov eax, [ecx+12]
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mov [ipc_mem_size], eax
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; init JPEG decoder
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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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call colorprecalc ; calculate colors
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; hook file functions
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mov ecx, 4
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call malloc
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and dword [edi], 0
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lea eax, [edi-file_handler.position]
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mov byte [read], 0xE9
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mov dword [read+1], read_from_mem - (read+5)
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; decode
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call jpeg_info
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mov dword [jpeg_st],ebp
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test ebp,ebp
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jz .end
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mov eax, [ebp + x_size]
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mul dword [ebp + y_size]
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lea eax, [eax*3+8]
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mov ecx, eax
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mcall 68, 12
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test eax, eax
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jz .end
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add eax, 8
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mov [ipc_mem_out], eax
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mov ebx, [ebp + x_size]
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mov [eax-8], ebx
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mov ebx, [ebp + y_size]
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mov [eax-4], ebx
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mov dword [ebp+draw_ptr],put_chunk_to_mem
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call jpeg_display
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; IPC response
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mov esi, [ebp + x_size]
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imul esi, [ebp + y_size]
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lea esi, [esi*3+8]
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mov edx, [ipc_mem_out]
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sub edx, 8
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.response:
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mov ecx, [ipc_mem]
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mov ecx, [ecx+8]
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mcall 60,2
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jmp close_program ; close the program right now
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.end:
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mov esi, 8
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mov edx, x_pointer ; points to 2 null dwords
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jmp .response
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read_from_mem:
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; in: eax=handle, ecx=size, edi=pointer to buffer
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; out: ecx=number of read bytes, buffer filled
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pushad
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mov esi, [ipc_mem]
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add esi, 16
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add esi, [eax+file_handler.position]
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add ecx, [eax+file_handler.position]
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cmp ecx, [ipc_mem_size]
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jb @f
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mov ecx, [ipc_mem_size]
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@@:
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sub ecx, [eax+file_handler.position]
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add [eax+file_handler.position], ecx
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rep movsb
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popad
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ret
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;******************************************************************************
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put_chunk_to_mem:
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; in: (eax,ebx) = start coordinates of chunk
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; (ecx,edx) = sizes of chunk
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; edi -> chunk data
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push esi edi edx
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mov esi, edi
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mov edi, ebx
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imul edi, [ebp + x_size]
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add edi, eax
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lea edi, [edi*3]
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add edi, [ipc_mem_out]
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@@:
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push ecx edi
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lea ecx, [ecx*3]
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rep movsb
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pop edi ecx
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add edi, [ebp + x_size]
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add edi, [ebp + x_size]
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add edi, [ebp + x_size]
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dec edx
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jnz @b
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pop edx edi esi
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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,48
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mov ebx,3
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mov ecx,sc
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mov edx,sizeof.system_colors
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mcall
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mov eax,12
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mov ebx,1
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mcall
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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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cmp [winxs], 0
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jne dw_001
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; Give the screen some inital defaults
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mov [winxs], 400
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mov [winys], 300
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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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mcall
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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 ebx, dword [winxo-2]
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mov bx, [winxs]
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mov ecx, dword [winyo-2]
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mov cx, [winys]
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xor eax,eax ; DRAW WINDOW
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mov edx,[sc.work]
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or edx,0x33000000
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mov edi,title ; WINDOW LABEL
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mcall
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mov eax,8 ; BUTTON 2: slideshow
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mov ebx,57
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mov cx, [winys]
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sub cx, 39
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shl ecx, 16
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add ecx, 12
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mov esi, [sc.work_button]
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mov edx,2
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mcall
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mov eax,4 ; Button text
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movzx ebx, word [winys]
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add ebx, 3 shl 16 - 36
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mov ecx,[sc.work_button_text]
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mov edx,setname
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mov esi,setnamelen-setname
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mcall
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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, 65
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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, 39
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shl ecx, 16
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add ecx, 12
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mov esi, [sc.work_button]
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mov edx,3
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mcall
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mov eax,4 ; Button text
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movzx ebx, word [winxs]
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sub ebx, 63
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shl ebx,16
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mov bx, word [winys]
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sub bx,36
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mov ecx,[sc.work_button_text]
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mov edx,setbgr
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mov esi,setbgrlen-setbgr
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mcall
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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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mcall
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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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mcall ; 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
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cmp edi,name_string.end
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jnc print_strings
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inc byte[name_string.cursor]
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jmp print_strings
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.rs_done:
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call print_strings
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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 .exit
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call jpeg_info
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test ebp,ebp
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jz close
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xchg [jpeg_st],ebp
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call jpeg_close
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load_image:
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mov eax,13 ; clear picture area
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movzx ebx, word [winxs]
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add ebx, 1 shl 16 -10
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movzx ecx, word [winys]
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|
sub ecx, 40
|
|
add ecx, 1 shl 16
|
|
|
|
mov edx,[sc.work]
|
|
mcall
|
|
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]
|
|
add ebx, 59 shl 16 -125
|
|
mov cx, [winys]
|
|
sub cx, 39
|
|
shl ecx, 16
|
|
add ecx, 12
|
|
mov edx,0xffffff
|
|
mcall
|
|
|
|
mov eax,4 ;
|
|
movzx ebx, word [winys]
|
|
add ebx, 61 shl 16 - 37
|
|
mov ecx,0x000000
|
|
mov edx,name_string
|
|
mov esi,60
|
|
mcall
|
|
popa
|
|
ret
|
|
|
|
slideshow:
|
|
cmp [file_dir], 0
|
|
jnz .exit
|
|
cmp [jpeg_st], 0
|
|
jz .exit
|
|
mov esi, name_string
|
|
movzx ecx, byte [name_string.cursor]
|
|
.l1:
|
|
cmp byte [esi+ecx], '/'
|
|
jz .l2
|
|
loop .l1
|
|
.exit:
|
|
ret
|
|
.l2:
|
|
mov byte [esi+ecx], 0
|
|
call open
|
|
mov byte [esi+ecx], '/'
|
|
test eax, eax
|
|
jz .exit
|
|
test byte [fileattr], 0x10
|
|
jz .exit
|
|
mov [file_dir], eax
|
|
inc ecx
|
|
mov [name_string.cursor], cl
|
|
display_next:
|
|
mov ebx, [file_dir]
|
|
test ebx, ebx
|
|
jnz @f
|
|
ret
|
|
@@:
|
|
mov byte [ebx], 1
|
|
mov byte [ebx+12], 1
|
|
mov dword [ebx+16], dirinfo
|
|
mov eax, 70
|
|
mcall
|
|
mov eax, [file_dir]
|
|
inc dword [eax+4]
|
|
cmp ebx, 1
|
|
jz @f
|
|
mov eax, [file_dir]
|
|
and [file_dir], 0
|
|
jmp close
|
|
@@:
|
|
movzx edi, byte [name_string.cursor]
|
|
add edi, name_string
|
|
lea esi, [dirinfo+32+40]
|
|
@@:
|
|
lodsb
|
|
stosb
|
|
test al, al
|
|
jnz @b
|
|
mov ecx, name_string.end
|
|
sub ecx, edi
|
|
rep stosb
|
|
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
|
|
drawing_mode dd 2
|
|
title db appname,version,0
|
|
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
|
|
name_string: db '/sys/jpegview.jpg',0
|
|
rb 256
|
|
.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
|
|
|
|
I_END:
|
|
sc system_colors
|
|
ipc_mem dd ?
|
|
ipc_mem_size dd ?
|
|
ipc_mem_out dd ?
|
|
fileattr: rb 40
|
|
dirinfo: rb 32+304
|
|
fin:
|