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
movzx ecx,word[size_x_var]
movzx eax,word[size_y_var]
imul ecx,eax ;SIZE_X*SIZE_Y
xor eax,eax
cld
rep stosd
pop edi
fninit
.again:
fild dword .x
fmul [sin_frq]
fistp dword .temp
mov eax, .temp
and eax, 0x000000ff
fld dword [sin_tab+eax*4]
fimul dword [sin_amplitude]
fiadd dword .y
fistp dword .new_y
mov eax,.new_y
or eax,eax
jl .skip
movzx ebx,word[size_y_var]
cmp eax,ebx ;SIZE_Y
jg .skip
movzx edx,word[size_x_var]
mul edx
; shl eax,9
add eax,dword .x
lea ebx,[eax*3]
cmp [dr_flag],12 ; 32 bit col cause
jl @f
add ebx,eax
@@:
mov eax,[esi]
mov [edi+ebx],eax
.skip:
add esi,3
cmp [dr_flag],12
jl @f
inc esi
@@:
inc dword .x
movzx edx,word[size_x_var]
cmp dword .x,edx ;SIZE_X
jl .again
mov dword .x,0
inc dword .y
movzx edx,word[size_y_var]
cmp dword .y,edx ;SIZE_Y
jl .again
; copy from temporary buffer -> Zbuffer to screen
mov esi,[Zbuffer_ptr]
mov edi,[screen_ptr]
movzx ecx,word[size_x_var]
movzx eax,word[size_y_var]
imul ecx,eax
cmp [dr_flag],12
jge @f
lea ecx,[ecx*3]
shr ecx,2
; mov ecx,SIZE_X*SIZE_Y*3/4
@@:
cld
rep movsd
mov esp,ebp
pop ebp
ret
draw_dots:
mov esi,[points_translated_ptr]
mov 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_var] ;SIZE_Y
jge @f
cmp bx,[size_x_var] ;SIZE_X
jge @f
movzx edx,word[size_x_var] ;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: ; sse2 version only
if Ext >= SSE2
movzx ecx,[bumps_deep_flag]
inc ecx
call blur_screen ;blur n times
mov eax,[size_y_var] ;load both x, y
mov ebx,eax
shr ebx,16
cwde
mul ebx
mov ecx,eax
sub ecx,ebx
sub ecx,ebx
mov esi,[screen_ptr]
mov edi,[Zbuffer_ptr]
cmp [dr_flag],12
jge @f
lea ebx,[ebx*3]
jmp .f
@@:
shl ebx,2
.f:
mov edx,esi
add esi,ebx
lea ebx,[ebx+esi]
pxor xmm0,xmm0
push eax
.emb:
cmp [dr_flag],12
jge @f
movlps xmm1,[esi+3]
movhps xmm1,[esi+6]
movlps xmm2,[esi-3]
movhps xmm2,[esi]
movlps xmm3,[ebx]
movhps xmm3,[ebx+3]
movlps xmm4,[edx]
movhps xmm4,[edx+3]
jmp .ff
@@:
movlps xmm1,[esi+4]
movhps xmm1,[esi+8]
movlps xmm2,[esi-4]
movhps xmm2,[esi]
movlps xmm3,[ebx]
movhps xmm3,[ebx+4]
movlps xmm4,[edx]
movhps xmm4,[edx+4]
.ff:
punpcklbw xmm1,xmm0
punpcklbw xmm2,xmm0
punpcklbw xmm3,xmm0
punpcklbw xmm4,xmm0
psubsw xmm1,xmm2
paddw xmm1,[emboss_bias]
psubsw xmm3,xmm4
paddw xmm3,[emboss_bias]
pmulhw xmm1,xmm3
movaps xmm7,xmm1
movaps xmm6,xmm1
psrlq xmm7,2*8
psrlq xmm6,4*8
pmaxsw xmm1,xmm7
pmaxsw xmm1,xmm6
if 0
movaps xmm7,xmm3
movaps xmm6,xmm3
psrlq xmm7,2*8
psrlq xmm6,4*8
pmaxsw xmm3,xmm7
pmaxsw xmm3,xmm6
end if
pmaxsw xmm1,xmm3
movd eax,xmm1
movzx eax,al
; cmp [dr_flag],12
; je @f
lea eax,[eax*3+envmap_cub]
; jmp .fff
;@@:
mov eax,[eax]
mov [edi],eax ;xmm1
psrldq xmm1,8
movd eax,xmm1
movzx eax,al
lea eax,[eax*3+envmap_cub]
mov eax,[eax]
mov [edi+4],eax
cmp [dr_flag],12
jl @f
add esi,2
add ebx,2
add edx,2
@@:
add edi,8
add esi,6
add ebx,6
add edx,6
sub ecx,2
jnc .emb
pop ecx ;,eax
mov edi,[screen_ptr]
mov esi,[Zbuffer_ptr]
cmp [dr_flag],12
jge .e
@@:
movsd
dec edi
loop @b
.e:
rep movsd
end if
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 eax,4
mov ebx,4+4
mov [triangles_count_var],160*3 ;164*3 ;140
mov ecx,80*3 ;68
@@:
stosd ;----
mov [edi],ebx ; |
add edi,4 ; |
inc eax ; |
stosd ; |repeat 4 times
mov [edi],ebx ; |
inc ebx
add edi,4
stosd ; |
mov [edi],ebx ; |
add edi,4 ;----
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 eax,5
mov ebx,5+5
mov [triangles_count_var],200 ;204
mov ecx,100
@@:
stosd ;----
mov [edi],ebx ; |
add edi,4 ; |
inc eax ; |
stosd ; |repeat
mov [edi],ebx ; |
inc ebx
add edi,4
stosd ; |
mov [edi],ebx ; |
add edi,4 ;----
loop @b
mov eax,5
mov ebx,[points_count_var]
sub ebx,2
mov dl,2
.nx:
mov ecx,5
add [triangles_count_var],ecx
@@:
stosd
add eax,5
stosd
mov dword[edi],ebx
add edi,4
loop @b
cmp dl,1
je @f
inc ebx
jmp .lab
@@:
dec ebx
.lab:
mov ecx,5
add [triangles_count_var],ecx
@@:
stosd
add eax,5
stosd
mov dword[edi],ebx
add edi,4
loop @b
dec dl
or dl,dl
jnz .nx
sub eax,25
stosd
sub eax,50
stosd
mov dword[edi],ebx
add edi,4
stosd
add eax,50
stosd
inc ebx
mov dword[edi],ebx
add edi,4
add [triangles_count_var],2
mov dword[edi],-1 ; < - end mark
mov [culling_flag],0
mov esp,ebp
pop ebp
ret