260 lines
4.8 KiB
NASM
260 lines
4.8 KiB
NASM
;
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; application : WAVED 3D FORM SIN(SQRT(x*x+y*y))
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; author : macgub
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; email : macgub3@wp.pl
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; system : MenuetOS
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; compiler : fasm
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;
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;
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TIMEOUT EQU 2
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IMG_X equ 512
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IMG_Y equ 384
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use32
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org 0x0
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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 0x100000 ; memory for app
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dd 0x7fff0 ; esp
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dd 0x0 , 0x0 ; I_Param , I_Icon
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START: ; start of execution
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call draw_window
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still:
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mov eax,23 ; wait here for event
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mov ebx,TIMEOUT
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int 0x40
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cmp eax,1 ; redraw request ?
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je red
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cmp eax,2 ; key in buffer ?
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je key
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cmp eax,3 ; button in buffer ?
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je button
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jmp noclose
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red: ; redraw
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call draw_window
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jmp still
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key: ; key
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mov eax,2 ; just read it and ignore
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int 0x40
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jmp still
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button: ; button
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mov eax,17 ; get id
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int 0x40
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cmp ah,1 ; button id=1 ?
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jne noclose
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mov eax,-1 ; close this program
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int 0x40
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noclose:
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call calc_deg
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; mov eax,13 ;clear screen
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; mov ebx,5*65536 + 517
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; mov ecx,20*65536 + 345
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; xor edx,edx
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; int 0x40
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mov edi,the_mem ;clear buffer
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mov ecx,512*384*3/4
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xor eax,eax
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cld
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rep stosd
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mov eax,1 ;main loop
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oop:
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mov ebx,1
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oop1:
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push eax
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push ebx
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mov [x],eax
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mov [z],ebx
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call fun
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add [y],260
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add [x],40
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call rotateY
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call put3dpixel
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pop ebx
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pop eax
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add ebx,4
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cmp ebx,201
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jne oop1
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inc eax
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cmp eax,300
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jne oop
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mov eax,7 ;put image
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mov ebx,the_mem
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mov ecx,IMG_X*65536+IMG_Y
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mov edx,0
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int 0x40
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jmp still
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;-------------------PROCEDURES-------------------------------
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calc_deg:
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cmp [deg_counter], 360
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jne go_deg
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mov [deg_counter],0
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go_deg:
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fldpi
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fidiv [deg_div]
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fimul [deg_counter]
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fst [current_deg]
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fsincos
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fstp [cosbeta]
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fstp [sinbeta]
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inc [deg_counter]
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ret
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;-----------------
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rotateY:
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mov eax,[z]
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sub eax,[zo]
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mov [subz],eax
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mov eax,[x]
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sub eax,[xo]
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mov [subx],eax
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fld [sinbeta]
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fimul [subz]
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fchs
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fld [cosbeta]
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fimul[subx]
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faddp
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fiadd [xo]
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fistp [x]
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fld [sinbeta]
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fimul [subx]
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fld [cosbeta]
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fimul [subz]
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faddp
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fiadd [zo]
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fistp [z]
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ret
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;-----------------------------
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fun:
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finit
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fild [x]
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fisub [i150]
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fidiv [xdiv]
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fmul st,st0
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fld st0
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fild [z]
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fisub [i100]
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fidiv [zdiv]
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fmul st,st0
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faddp
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fsqrt
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fld [current_deg]
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fimul [cur_deg_mul]
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faddp
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fsin
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fimul [ymul]
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fistp [y]
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ret
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;--------------------------
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put3dpixel:
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fild [z]
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fmul [sq]
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fchs
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fiadd [y]
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fistp [y]
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fild [z]
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fmul [sq]
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fiadd [x]
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fistp [x]
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;mov eax,1
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;mov ebx,[x]
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;mov ecx,[y]
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;mov edx,[col]
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;int 0x40
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mov eax,[y] ; calculating pixel position in buffer
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dec eax
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shl eax,9
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add eax,[x]
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mov ebx,eax
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shl eax,1
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add eax,ebx
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add eax,the_mem
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mov ebx,[col]
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or [eax],ebx
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ret
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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 ; function 12:tell os about windowdraw
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mov ebx,1 ; 1, start of draw
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int 0x40
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mov eax,48 ;get skin width
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mov ebx,4
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int 0x40
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mov esi, eax
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; DRAW WINDOW
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mov eax,0 ; function 0 : define and draw window
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mov ebx,100*65536+IMG_X+9 ; [x start] *65536 + [x size]
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mov ecx,100*65536+IMG_Y+4 ; [y start] *65536 + [y size]
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add ecx, esi
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mov edx,0x74000000 ; color of work area RRGGBB,8->color gl
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mov edi,labelt
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int 0x40
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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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; DATA AREA
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deg_div dd 90
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deg_counter dd ?
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col dd 0x00ffffff
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sq dd 0.707 ;sin pi/4
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cosbeta dd ?
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sinbeta dd ?
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x dd ?
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y dd ?
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z dd ?
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xo dd 200 ;axle variables
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;yo dd 110
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zo dd 80
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xdiv dd 20
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zdiv dd 20
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ymul dd 20
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subx dd ?
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;suby dd ?
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subz dd ?
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current_deg dd ? ;real
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cur_deg_mul dd 12
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i100 dd 100
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i150 dd 150
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labelt:
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db 'Waved 3d form',0
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the_mem:
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I_END:
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