do_sinus:
.x equ [ebp-8]
.y equ [ebp-12]
.new_y equ [ebp-16]
.temp equ [ebp-20]
push ebp
mov ebp,esp
sub esp,64
mov dword .x,0
mov dword .y,0
mov esi,[screen_ptr]
mov edi,[Zbuffer_ptr]
push edi
; clear Zbuffer temporally used as image buffer
mov ecx,SIZE_X*SIZE_Y
xor eax,eax
cld
rep stosd
pop edi
; movzx eax,[sinus_flag]
; mov edx,10
; mul edx
; mov [sin_amplitude],eax
; mov [sin_frq],eax
fninit
;if Ext = SSE2
; movups xmm1,[const0123] ; xmm1 - init values
; mov eax,0x000000ff
; movd xmm2,eax
; shufps xmm2,xmm2,0 ; xmm2 - mask value
; mov eax,4
; movd xmm3,eax
; shufps xmm3,xmm3,0
.again:
if 0
fild dword .x
fidiv [sin_frq]
fsin
fimul [sin_amplitude]
fiadd dword .y
fistp dword .new_y
else
fild dword .x
fmul [sin_frq]
fistp dword .temp
mov eax, .temp
; mov bx, [angle_x]
; add bx, [angle_y]
; movzx ebx,bx
; shr ebx,1 ; change phase
; add eax,ebx
and eax, 0x000000ff
; cdq
; mul [sin_frq]
; and eax,0x000000ff
; and ax,0x00ff
; cwde
fld dword [sin_tab+eax*4]
fimul dword [sin_amplitude]
fiadd dword .y
fistp dword .new_y
end if
mov eax,.new_y
or eax,eax
jl .skip
cmp eax,SIZE_Y
jg .skip
; mov edx,SIZE_X
; mul edx
shl eax,9
add eax,dword .x
lea ebx,[eax*3]
mov eax,[esi]
mov [edi+ebx],eax
.skip:
add esi,3
inc dword .x
cmp dword .x,SIZE_X
jl .again
mov dword .x,0
inc dword .y
cmp dword .y,SIZE_Y
jl .again
; copy from temporary buffer -> Zbuffer to screen
mov esi,[Zbuffer_ptr]
mov edi,[screen_ptr]
mov ecx,SIZE_X*SIZE_Y*3/4
cld
rep movsd
mov esp,ebp
pop ebp
ret
draw_dots:
mov esi,[points_translated_ptr]
movzx ecx,[points_count_var]
.drw:
@@:
lodsd
add esi,2 ; skip z
movzx ebx,ax
shr eax,16 ; bx = x , ax = y
or ax,ax
jl @f
or bx,bx
jl @f
cmp ax,SIZE_Y
jge @f
cmp bx,SIZE_X
jge @f
mov edx,SIZE_X ; SIZE_X not only power of 2 -> 256,512,...
mul edx
add eax,ebx
mov edi,[screen_ptr]
lea eax,[eax*3]
add edi,eax
xor eax,eax
not eax
stosd
@@:
loop .drw
ret
do_emboss:
; emboss - after drawing all,
; transfer screen buffer into bump map
; and draw two bump triangles
; *************************************
mov esi,screen
mov edi,bumpmap2
mov ecx,TEXTURE_SIZE/3
cld
if Ext=NON
xor eax,eax
xor bh,bh
xor dh,dh
@@:
lodsb
movzx bx,al
lodsb
movzx dx,al
lodsb
add ax,bx
add ax,dx
; cwd
; div [i3]
;; push ax
;; pop bx
;; shr bx,3
;; shr ax,2
;; add ax,bx
lea eax,[eax*5]
shr ax,4
stosb
loop @b
else
emms
pxor mm1,mm1
mov ebx,0x0000ffff
@@:
movd mm0,[esi]
punpcklbw mm0,mm1
movq mm2,mm0
psrlq mm2,16
movq mm3,mm0
psrlq mm3,32
paddw mm0,mm2
paddw mm0,mm3
movd eax,mm0
and eax,ebx
lea eax,[eax*5]
shr ax,4
stosb
add esi,3
loop @b
end if
push ebp
push dword 0 ; env coords
push word 0
push word SIZE_X
push word SIZE_Y
push dword 0
push dword 0 ; bump coords
push word SIZE_X
push word SIZE_Y
push word 0
mov eax,SIZE_Y
mov ebx,SIZE_X*65536+0
xor ecx,ecx
mov edx,bumpmap2
mov esi,envmap
mov edi,screen
call bump_triangle
push dword SIZE_X shl 16 + SIZE_Y ; env coords
push word 0
push word SIZE_X
push word SIZE_Y
push word 0
push dword SIZE_X shl 16 + SIZE_Y ; bump coords
push word 0
push word SIZE_X
push word SIZE_Y
push word 0
mov eax,SIZE_Y
mov ebx,SIZE_X * 65536+0
mov ecx,SIZE_X shl 16 + SIZE_Y
mov edx,bumpmap2
mov esi,envmap
mov edi,screen
call bump_triangle
pop ebp
ret
;********************************EMBOSS DONE*******************************
generate_object2: ; torus
;in ax - figure number 2=torus, 3=loop, 4=loop
;locals
; counter dw ?
; sin dd ?
; cos dd ?
;endl
.counter equ word[ebp-2]
.sin equ dword[ebp-6]
.cos equ dword[ebp-10]
.sin2 equ dword[ebp-14]
.cos2 equ dword[ebp-18]
.piD180m3 equ dword[ebp-22]
.cD2 equ word[ebp-24]
push ebp
mov ebp,esp
sub esp,24
push ax
fninit
mov edi,[points_ptr]
xor eax,eax
; init seed -> 4 3d points
mov dword[edi],-1.0 ; x
add edi,4
stosd ; y
stosd ; z
mov dword[edi],-0.9 ; x1
mov dword[edi+4],0.1 ; y1
add edi,8
stosd ; z1
mov dword[edi],-0.8
add edi,4
stosd
stosd
mov dword[edi],-0.9 ; x3
mov dword[edi+4],-0.1 ; y3
add edi,8
stosd ; z3
mov [points_count_var],4
fld [piD180]
fidiv [i3]
fstp .piD180m3
mov .cD2,5
pop ax
mov ecx,1
mov edx,9
.next: ; calc angle and rotate seed 4 points
mov .counter,cx
mov ebx,[points_ptr]
fld .piD180m3
fimul .counter
fld st
fsincos
fstp .sin
fstp .cos
fadd st,st0
fsincos
fstp .sin2
fstp .cos2
.rotor: ; next 4
; rotary y
fld dword[ebx] ; x
fld .sin
fmul dword[ebx+8] ; z * sinbeta
fchs
fld .cos
fmul dword[ebx] ; x * cosbeta
faddp
fstp dword[edi] ; new x
fmul .sin ; old x * sinbeta
fld .cos
fmul dword[ebx+8] ; z * cosbeta
faddp
dec dx
or dx,dx
jnz @f
; mov .counter,dx
fld st
fidiv [i3]
faddp
@@:
fstp dword[edi+8] ; new z
fld dword[ebx+4]
or dx,dx
jnz @f
; fld1
; faddp
; fld st
fadd st,st0
fadd st,st0
; fxch
; fimul [i3]
; fsin
; faddp
mov dx,9
@@:
fstp dword[edi+4]
; rotary x
cmp al,3
jl .end_rot
fld dword[edi+4] ;y
fld .sin2
fmul dword[edi+8] ;z
fld .cos2
fmul dword[edi+4] ;y
faddp
fstp dword[edi+4] ; new y
fmul .sin2 ; sinbeta * old y
fchs
fld .cos2
fmul dword[edi+8]
faddp
fstp dword[edi+8]
; rotary z
cmp al,4
jl .end_rot
fld dword[edi] ;x
fld .sin
fmul dword[edi+4] ;y
fld .cos
fmul dword[edi] ;x
faddp
fstp dword[edi] ;new x
fmul .sin ; sinbeta * old x
fchs
fld .cos
fmul dword[edi+4] ; cosbeta * y
faddp
fstp dword[edi+4] ; new y
.end_rot:
add edi,12
add ebx,12
mov esi,[points_ptr]
add esi,12*4
cmp ebx,esi
jl .rotor
add [points_count_var],4
add cx,18
cmp cx,(18*21*3)+1
jle .next
mov edi,[triangles_ptr]
mov ax,4
mov bx,4+4
mov [triangles_count_var],164*3 ;140
mov cx,80*3 ;68
@@:
stosw ;----
mov [edi],bx ; |
add edi,2 ; |
inc ax ; |
stosw ; |repeat 4 times
mov [edi],bx ; |
inc bx
add edi,2
stosw ; |
mov [edi],bx ; |
add edi,2 ;----
loop @b
mov dword[edi],-1 ; < - end mark
mov [culling_flag],0
mov esp,ebp
pop ebp
ret
generate_object3: ; heart
;locals
; counter dw ?
; sin dd ?
; cos dd ?
;endl
.counter equ word[ebp-2]
.sin equ dword[ebp-6]
.cos equ dword[ebp-10]
.sin2 equ dword[ebp-14]
.cos2 equ dword[ebp-18]
.piD180m3 equ dword[ebp-22]
.cD2 equ word[ebp-24]
push ebp
mov ebp,esp
sub esp,24
fninit
mov edi,[points_ptr]
xor eax,eax
; init seed -> eight 3d points
mov dword[edi],2.0
add edi,4
stosd
stosd
mov dword[edi],2.0
mov dword[edi+4],-0.5
add edi,8
stosd
mov dword[edi],1.5
mov dword[edi+4],-1.5
add edi,8
stosd
mov dword[edi],1.0
mov dword[edi+4],-2.0
add edi,8
stosd
stosd
mov dword[edi],-2.5
add edi,4
stosd
mov [points_count_var],5
mov ecx,1
.next: ; calc angle and rotate seed 4 points
mov .counter,cx
mov ebx,[points_ptr]
fld [piD180]
fimul .counter
fsincos
fstp .sin
fstp .cos
.rotor: ; next 4
; rotary y
fld dword[ebx] ; x
fld .sin
fmul dword[ebx+8] ; z * sinbeta
fchs
fld .cos
fmul dword[ebx] ; x * cosbeta
faddp
fidiv [i3]
fstp dword[edi] ; new x
fmul .sin ; old x * sinbeta
fld .cos
fmul dword[ebx+8] ; z * cosbeta
faddp
fstp dword[edi+8] ; new z
fld dword[ebx+4] ;y
fstp dword[edi+4]
.end_rot:
add edi,12
add ebx,12
mov esi,[points_ptr]
add esi,12*5
cmp ebx,esi ;real_points + (12*5)
jl .rotor
add [points_count_var],5
add cx,18
cmp cx,(18*21)+1
jle .next
;last points
xor eax,eax
mov dword[edi],0.22
mov dword[edi+4],0.77
mov dword[edi+8],1.25
add edi,12
mov dword[edi],0.22
mov dword[edi+4],0.77
mov dword[edi+8],-1.25
add edi,12
stosd
add [points_count_var],2
; init triangles list
mov edi,[triangles_ptr]
mov ax,5
mov bx,5+5
mov [triangles_count_var],204
mov cx,100
@@:
stosw ;----
mov [edi],bx ; |
add edi,2 ; |
inc ax ; |
stosw ; |repeat
mov [edi],bx ; |
inc bx
add edi,2
stosw ; |
mov [edi],bx ; |
add edi,2 ;----
loop @b
mov ax,5
mov bx,[points_count_var]
sub bx,2
mov dl,2
.nx:
mov cx,5
add [triangles_count_var],cx
@@:
stosw
add ax,5
stosw
mov word[edi],bx
add edi,2
loop @b
cmp dl,1
je @f
inc bx
jmp .lab
@@:
dec bx
.lab:
mov cx,5
add [triangles_count_var],cx
@@:
stosw
add ax,5
stosw
mov word[edi],bx
add edi,2
loop @b
dec dl
or dl,dl
jnz .nx
sub ax,25
stosw
sub ax,50
stosw
mov word[edi],bx
add edi,2
stosw
add ax,50
stosw
inc bx
mov word[edi],bx
add edi,2
add [triangles_count_var],2
mov dword[edi],-1 ; < - end mark
mov [culling_flag],0
mov esp,ebp
pop ebp
ret