forked from KolibriOS/kolibrios
405 lines
8.5 KiB
NASM
405 lines
8.5 KiB
NASM
;
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; Crown_s Soft Screensaver v1.13m
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; WWW: http://www.crown-s-soft.com
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;
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; You may add you own figures. See file FIGURES.INC
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;
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; Compile with FASM v1.48 for Menuet or hier (FASM v1.40 contains bug)
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;
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; Copyright(c) 2002-2004 Crown_s Soft. All rights reserved.
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;
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fullscreen = 1
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n_points = 0x1800
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delay = 2
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speed equ 0.004
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macro align value { rb (value-1) - ($ + value-1) mod value }
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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 i_end+0x1000 ; memory for app
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dd i_end+0x1000 ; esp
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dd 0x0 ; I_Param
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dd 0x0 ; I_Icon
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copyright db 'Crown_s Soft(c) Screensaver v1.13m www.crown-s-soft.com',0
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copyrightlen:
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include "lang.inc"
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include "figuresi.inc"
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include "macros.inc"
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start:
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cld
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finit
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call filling_alfbet ; fill table alfbet by casual numbers
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mov eax,[tabl_calls]
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mov [pp1adr],eax
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cmp [flscr],0
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jz nofullscreen
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mov eax,14
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int 0x40
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mov [maxy],ax
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sub ax,480
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jnc m5
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xor ax,ax
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m5:
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shr ax,1
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mov [posy],ax
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shr eax,16
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mov [maxx],ax
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sub ax,480
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jnc m6
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xor ax,ax
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m6:
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shr ax,1
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mov [posx],ax
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mov [outsize],480+65536*480
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jmp m4
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nofullscreen:
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mov [posx],75
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mov [posy],20
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mov [outsize],450+65536*480
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m4:
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red:
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call draw_window
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still:
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mov eax,23
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mov ebx,delay
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int 0x40 ; wait here for event
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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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call calcframe
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mov edx,dword [posy] ; edx=image position in window [x]*65536+[y]
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mov ecx,[outsize] ; ecx=image position in window [x]*65536+[y]
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mov ebx,scr ; ebx pointer to image in memory
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mov eax,07 ; putimage
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int 0x40
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jmp still
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key:
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mov eax,2
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int 0x40
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cmp al,1 ; is key in buffer ?
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jz still
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cmp ah,0x1B ; is key ESC ?
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jz close
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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 still
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close:
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mov eax,-1 ; close this program
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int 0x40
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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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cmp [flscr],0
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jnz m2
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mov ebx,1*65536+640 ; [x start] *65536 + [x size]
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mov ecx,1*65536+480 ; [y start] *65536 + [y size]
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mov edx,0x02000000 ; color of work area RRGGBB,8->color gl
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mov esi,0x805080d0 ; color of grab bar RRGGBB,8->color gl
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mov edi,0x005080d0 ; color of frames RRGGBB
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xor eax,eax ; function 0 : define and draw window
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int 0x40
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; WINDOW LABEL
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mov ebx,8*65536+8 ; [x start] *65536 + [y start]
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mov ecx,0x10ddeeff ; color of text RRGGBB
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mov edx,copyright ; pointer to text beginning
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mov esi,copyrightlen-copyright; text length
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mov eax,4 ; function 4 : write text to window
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int 0x40
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; CLOSE BUTTON
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mov ebx,(640-19)*65536+12 ; [x start] *65536 + [x size]
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mov ecx,5*65536+12 ; [y start] *65536 + [y size]
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mov edx,1 ; button id
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mov esi,0x6688dd ; button color RRGGBB
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mov eax,8 ; function 8 : define and draw button
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int 0x40
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jmp m3
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m2:
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movzx ebx,[maxx] ; [x start] *65536 + [x size]
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movzx ecx,[maxy] ; [y start] *65536 + [y size]
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mov edx,0x01000000 ; color of work area RRGGBB,8->color gl
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mov esi,0x805080d0 ; color of grab bar RRGGBB,8->color gl
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mov edi,0x005080d0 ; color of frames RRGGBB
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xor eax,eax ; function 0 : define and draw window
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int 0x40
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inc bx
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inc cx
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mov eax,13 ; functiom 13 : draw bar
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int 0x40
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m3:
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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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calcframe:
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cld
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mov edi,scr
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mov ecx,480*480*3/4
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xor eax,eax
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rep stosd ; CLS
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mov ebx,[frame]
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not bh
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test bh,03h
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not bh
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jnz lb1
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; ebx=xxxx xxxx xxxx xxxx xxxx xx11 xxxx xxxxb
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mov byte [p],bl
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lb1:
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test bx,03ffh
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jnz lb2
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; ebx=xxxx xxxx xxxx xxxx xxxx xx00 0000 0000b
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mov [p],0
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mov eax,[pp1adr]
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mov [pp0adr],eax
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inc [pp1]
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cmp [pp1],num_tabl_calls
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jnz lb3
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mov [pp1],0
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lb3:
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movzx eax,[pp1]
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mov eax,[tabl_calls+eax*4]
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mov [pp1adr],eax
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lb2:
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fild [frame] ; st0=STime
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fmul [speed1] ; st0=STime*Speed
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fst [bt_r] ; al_rSTime*Speed
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fadd st0,st0
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fstp [al_r] ; al_rSTime*Speed*2
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mov [Fl],0
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mov ecx,[mFl]
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mov esi,alfbet
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ckl1:
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call [pp0adr]
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cmp [p],0
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jz lb4
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fstp [x1]
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fstp [y1]
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fstp [z1]
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call [pp1adr]
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call mix
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lb4:
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call turn
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add esi,4
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inc [Fl]
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loop ckl1
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inc ebx
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mov [frame],ebx
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ret
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; turn coordinate system
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turn:
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; around Y
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; x= x*cos(a)-z*sin(a)
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; y= y
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; z= x*sin(a)+z*cos(a)
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fld st2 ; st0=z st1=x st2=y st3=z
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fld st1 ; st0=x st1=z st2=x st3=y st4=z
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fld [al_r] ; st0=a st1=x st2=z st3=x st4=y st5=z
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fsincos ; st0=cos(a) st1=sin(a) st2=x st3=z st4=x st5=y st6=z
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fmul st4,st0
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fmulp st6,st0 ; st0=sin(a) st1=x st2=z st3=x*cos(a) st4=y st5=z*cos(a)
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fmul st2,st0
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fmulp st1,st0 ; st0=x*sin(a) st1=z*sin(a) st2=x*cos(a) st3=y st4=z*c
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faddp st4,st0
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fsubp st1,st0
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; around X
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; x=x
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; y= y*cos(b)+z*sin(b)
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; z=-y*sin(b)+z*cos(b)
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fld st2 ; st0=z st1=x st2=y st3=z
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fld st2 ; st0=y st1=z st2=x st3=y st4=z
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fld [bt_r] ; st0=b st1=y st2=z st3=x st4=y st5=z
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fsincos ; st0=cos(b) st1=sin(b) st2=y st3=z st4=x st5=y st6=z
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fmul st5,st0
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fmulp st6,st0 ; st0=sin(b) st1=y st2=z st3=x st4=y*cos(b) st5=z*cos(b)
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fmul st2,st0
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fmulp st1,st0 ; st0=y*sin(b) st1=z*sin(b) st2=x st3=y*cos(b) st4=z*cos(b)
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fsubp st4,st0 ; st0=z*sin(b) st1=x st2=y*cos(b) st3=z*cos(b)-y*sin(b)
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faddp st2,st0
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; st0=x st1=y st2=z
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fistp [x1]
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fistp [y1]
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fmul [Zdepth] ; st0=z*Zdepth
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fiadd [Zcolor] ; st0=z*Zdepth+Zcolor
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fistp [z_w] ; st0z*Zdepth+Zcolor
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push edx
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mov eax,[x1]
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add eax,[mid]
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mul [const480]
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add eax,[y1]
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add eax,[mid]
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mul [const3]
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mov dl,byte [z_w] ; al=ZZ
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mov [scr+0+eax],dl
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mov [scr+1+eax],dl
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mov [scr+2+eax],dl
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pop edx
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ret
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mix:
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fild [p] ; st0=p
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fmul [mp] ; st0=p=p*mp
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fld st0 ; st0=p st1=p
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fmul st4,st0
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fmul st3,st0
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fmulp st2,st0 ; st0=p st1=x*p st2=y*p st3=z*p
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fld1
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fsubrp st1,st0 ; st0=1-p st1=x*p st2=y*p st3=z*p
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fld [z1] ; st0=z1 st1=1-p st2=x*p st3=y*p st4=z*p
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fmul st0,st1
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faddp st4,st0
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fld [y1] ; st0=y1 st1=1-p st2=x*p st3=y*p st4=
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fmul st0,st1
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faddp st3,st0
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fld [x1] ; st0=x1 st1=1-p st2=x*p st3=y*p+y1*(1-p) st4=
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fmulp st1,st0 ; st0=x1*(1-p) st1=x*p st2=y*p+y1*(1-p) st3=
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faddp st1,st0 ; st0=x=x*p+x1*(1-p) st1=y=y*p+y1*(1-p) st2=z
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ret
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filling_alfbet:
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; Initialize RND
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mov eax,3
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int 40h
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; eax - fist random number
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mov ecx,n_points
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mov edi,alfbet
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mov ebx,8088405h
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ck2:
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stosd
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; Compute next random number
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; New := 8088405H * Old + 1
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mul ebx
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inc eax
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loop ck2
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ret
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; DATA AREA
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align 2
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frame dd 0
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mp dd 0.00390625
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n_r dd 0.00390625
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mal_r dd 6.28318530717958648
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mbt_r dd 6.28318530717958648
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const3 dd 3
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const6 dw 6
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const480 dd 480
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mFl dd n_points
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pp1 dw 0
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Zdepth dd 0.3
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Zcolor dw 140
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mid dd 240 ; centre of screen
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speed1 dd speed
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flscr db fullscreen
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align 4
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outsize dd ?
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posy dw ?
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posx dw ?
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maxy dw ?
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maxx dw ?
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Fl dd ?
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p dd ?
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al_r dd ?
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bt_r dd ?
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pp0adr dd ?
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pp1adr dd ?
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z_w dw ?
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x1 dd ?
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y1 dd ?
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z1 dd ?
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align 16
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alfbet: ; alfbet db n_points*4 dup (?)
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scr = alfbet+n_points*4 ; scr db 480*480*3+1 dup (?)
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i_end = scr+480*480*3+1 ; i_param db 256 dup (?)
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