;
; application : WAVED 3D FORM SIN(SQRT(x*x+y*y))
; author : macgub
; email : macgub3@wp.pl
; system : MenuetOS
; compiler : fasm
;
;
TIMEOUT EQU 2
IMG_X equ 512
IMG_Y equ 384
use32
org 0x0
db 'MENUET01' ; 8 byte id
dd 0x01 ; header version
dd START ; start of code
dd I_END ; size of image
dd 0x100000 ; memory for app
dd 0x7fff0 ; esp
dd 0x0 , 0x0 ; I_Param , I_Icon
START: ; start of execution
call draw_window
still:
mov eax,23 ; wait here for event
mov ebx,TIMEOUT
int 0x40
cmp eax,1 ; redraw request ?
je red
cmp eax,2 ; key in buffer ?
je key
cmp eax,3 ; button in buffer ?
je button
jmp noclose
red: ; redraw
call draw_window
jmp still
key: ; key
mov eax,2 ; just read it and ignore
int 0x40
jmp still
button: ; button
mov eax,17 ; get id
int 0x40
cmp ah,1 ; button id=1 ?
jne noclose
mov eax,-1 ; close this program
int 0x40
noclose:
call calc_deg
; mov eax,13 ;clear screen
; mov ebx,5*65536 + 517
; mov ecx,20*65536 + 345
; xor edx,edx
; int 0x40
mov edi,the_mem ;clear buffer
mov ecx,512*384*3/4
xor eax,eax
cld
rep stosd
mov eax,1 ;main loop
oop:
mov ebx,1
oop1:
push eax
push ebx
mov [x],eax
mov [z],ebx
call fun
add [y],260
add [x],40
call rotateY
call put3dpixel
pop ebx
pop eax
add ebx,4
cmp ebx,201
jne oop1
inc eax
cmp eax,300
jne oop
mov eax,7 ;put image
mov ebx,the_mem
mov ecx,IMG_X*65536+IMG_Y
mov edx,0
int 0x40
jmp still
;-------------------PROCEDURES-------------------------------
calc_deg:
cmp [deg_counter], 360
jne go_deg
mov [deg_counter],0
go_deg:
fldpi
fidiv [deg_div]
fimul [deg_counter]
fst [current_deg]
fsincos
fstp [cosbeta]
fstp [sinbeta]
inc [deg_counter]
ret
;-----------------
rotateY:
mov eax,[z]
sub eax,[zo]
mov [subz],eax
mov eax,[x]
sub eax,[xo]
mov [subx],eax
fld [sinbeta]
fimul [subz]
fchs
fld [cosbeta]
fimul[subx]
faddp
fiadd [xo]
fistp [x]
fld [sinbeta]
fimul [subx]
fld [cosbeta]
fimul [subz]
faddp
fiadd [zo]
fistp [z]
ret
;-----------------------------
fun:
finit
fild [x]
fisub [i150]
fidiv [xdiv]
fmul st,st0
fld st0
fild [z]
fisub [i100]
fidiv [zdiv]
fmul st,st0
faddp
fsqrt
fld [current_deg]
fimul [cur_deg_mul]
faddp
fsin
fimul [ymul]
fistp [y]
ret
;--------------------------
put3dpixel:
fild [z]
fmul [sq]
fchs
fiadd [y]
fistp [y]
fild [z]
fmul [sq]
fiadd [x]
fistp [x]
;mov eax,1
;mov ebx,[x]
;mov ecx,[y]
;mov edx,[col]
;int 0x40
mov eax,[y] ; calculating pixel position in buffer
dec eax
shl eax,9
add eax,[x]
mov ebx,eax
shl eax,1
add eax,ebx
add eax,the_mem
mov ebx,[col]
or [eax],ebx
ret
; *********************************************
; ******* WINDOW DEFINITIONS AND DRAW ********
; *********************************************
draw_window:
mov eax,12 ; function 12:tell os about windowdraw
mov ebx,1 ; 1, start of draw
int 0x40
mov eax,48 ;get skin width
mov ebx,4
int 0x40
mov esi, eax
; DRAW WINDOW
mov eax,0 ; function 0 : define and draw window
mov ebx,100*65536+IMG_X+9 ; [x start] *65536 + [x size]
mov ecx,100*65536+IMG_Y+4 ; [y start] *65536 + [y size]
add ecx, esi
mov edx,0x74000000 ; color of work area RRGGBB,8->color gl
mov edi,labelt
int 0x40
mov eax,12 ; function 12:tell os about windowdraw
mov ebx,2 ; 2, end of draw
int 0x40
ret
; DATA AREA
deg_div dd 90
deg_counter dd ?
col dd 0x00ffffff
sq dd 0.707 ;sin pi/4
cosbeta dd ?
sinbeta dd ?
x dd ?
y dd ?
z dd ?
xo dd 200 ;axle variables
;yo dd 110
zo dd 80
xdiv dd 20
zdiv dd 20
ymul dd 20
subx dd ?
;suby dd ?
subz dd ?
current_deg dd ? ;real
cur_deg_mul dd 12
i100 dd 100
i150 dd 150
labelt:
db 'Waved 3d form',0
the_mem:
I_END: