mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-22 14:52:39 +03:00
1092 lines
26 KiB
Plaintext
1092 lines
26 KiB
Plaintext
|
|
;SIZE_X equ 350
|
|
;SIZE_Y equ 350
|
|
;ROUND equ 8
|
|
;TEX_X equ 512
|
|
;TEX_Y equ 512
|
|
;TEXTURE_SIZE EQU (512*512)-1
|
|
;TEX_SHIFT EQU 9
|
|
|
|
;CATMULL_SHIFT equ 8
|
|
;TEXTURE_SIZE EQU (TEX_X * TEX_Y)-1
|
|
;Ext = SSE
|
|
;SSE = 3
|
|
;MMX = 1
|
|
;NON = 0
|
|
;use32
|
|
;------- Big thanks to Majuma (www.majuma.xt.pl) for absolutely great---
|
|
;------- DOS 13h mode demos --------------------------------------------
|
|
;------- Procedure draws triangle with two overlapped textures, I use --
|
|
;--------Catmull Z-buffer algorithm- (Z coordinate interpolation)-------
|
|
;--------I calc texture pixel by this way: col1*col2/256 ---------------
|
|
two_tex_triangle_z:
|
|
;------------------in - eax - x1 shl 16 + y1 -----------
|
|
;---------------------- ebx - x2 shl 16 + y2 -----------
|
|
;---------------------- ecx - x3 shl 16 + y3 -----------
|
|
;---------------------- edx - pointer to b. texture-----
|
|
;---------------------- esi - pointer to e. texture-----
|
|
;---------------------- edi - pointer to screen buffer--
|
|
;---------------------- stack : b. tex coordinates------
|
|
;---------------------- e. tex coordinates------
|
|
;---------------------- Z position coordinates--
|
|
;---------------------- pointer io Z buffer-----
|
|
;-- Z-buffer - filled with coordinates as dword --------
|
|
;-- (Z coor. as word) shl CATMULL_SHIFT ----------------
|
|
.b_x1 equ ebp+4 ; procedure don't save registers !!!
|
|
.b_y1 equ ebp+6 ; each coordinate as word
|
|
.b_x2 equ ebp+8
|
|
.b_y2 equ ebp+10 ; b - first texture
|
|
.b_x3 equ ebp+12
|
|
.b_y3 equ ebp+14 ; e - second texture
|
|
.e_x1 equ ebp+16
|
|
.e_y1 equ ebp+18
|
|
.e_x2 equ ebp+20
|
|
.e_y2 equ ebp+22
|
|
.e_x3 equ ebp+24
|
|
.e_y3 equ ebp+26
|
|
.z1 equ word[ebp+28]
|
|
.z2 equ word[ebp+30]
|
|
.z3 equ word[ebp+32]
|
|
.z_buff equ dword[ebp+34] ; pointer to Z-buffer
|
|
|
|
|
|
.t_bmap equ dword[ebp-4] ; pointer to b. texture
|
|
.t_emap equ dword[ebp-8] ; pointer to e. texture
|
|
.x1 equ word[ebp-10]
|
|
.y1 equ word[ebp-12]
|
|
.x2 equ word[ebp-14]
|
|
.y2 equ word[ebp-16]
|
|
.x3 equ word[ebp-18]
|
|
.y3 equ word[ebp-20]
|
|
|
|
.dx12 equ dword[ebp-24]
|
|
.dbx12 equ dword[ebp-28]
|
|
.dby12 equ dword[ebp-32]
|
|
.dby12q equ [ebp-32]
|
|
.dex12 equ dword[ebp-36]
|
|
.dey12 equ dword[ebp-40]
|
|
.dey12q equ [ebp-40]
|
|
.dz12 equ dword[ebp-44]
|
|
|
|
.dx13 equ dword[ebp-48]
|
|
.dbx13 equ dword[ebp-52]
|
|
.dby13 equ dword[ebp-56]
|
|
.dby13q equ [ebp-56]
|
|
.dex13 equ dword[ebp-60]
|
|
.dey13 equ dword[ebp-64]
|
|
.dey13q equ [ebp-64]
|
|
.dz13 equ dword[ebp-68]
|
|
|
|
.dx23 equ dword[ebp-72]
|
|
.dbx23 equ dword[ebp-76]
|
|
.dby23 equ dword[ebp-80]
|
|
.dby23q equ [ebp-80]
|
|
.dex23 equ dword[ebp-84]
|
|
.dey23 equ dword[ebp-88]
|
|
.dey23q equ [ebp-88]
|
|
.dz23 equ dword[ebp-92]
|
|
|
|
.cx1 equ dword[ebp-96] ; current variables
|
|
.cx2 equ dword[ebp-100]
|
|
.cbx1 equ dword[ebp-104]
|
|
.cby1 equ [ebp-108]
|
|
.cex1 equ dword[ebp-112]
|
|
.cey1 equ [ebp-116]
|
|
.cbx2 equ dword[ebp-120]
|
|
.cby2 equ [ebp-124]
|
|
.cex2 equ dword[ebp-128]
|
|
.cey2 equ [ebp-132]
|
|
|
|
.cz1 equ dword[ebp-136]
|
|
.cz2 equ dword[ebp-140]
|
|
|
|
if Ext >= MMX
|
|
emms
|
|
else
|
|
cld
|
|
end if
|
|
mov ebp,esp
|
|
push edx esi ; store bump map
|
|
; push esi ; store e. map
|
|
; sub esp,120
|
|
.sort3: ; sort triangle coordinates...
|
|
cmp ax,bx
|
|
jle .sort1
|
|
xchg eax,ebx
|
|
mov edx,dword[.b_x1]
|
|
xchg edx,dword[.b_x2]
|
|
mov dword[.b_x1],edx
|
|
mov edx,dword[.e_x1]
|
|
xchg edx,dword[.e_x2]
|
|
mov dword[.e_x1],edx
|
|
mov dx,.z1
|
|
xchg dx,.z2
|
|
mov .z1,dx
|
|
.sort1:
|
|
cmp bx,cx
|
|
jle .sort2
|
|
xchg ebx,ecx
|
|
mov edx,dword[.b_x2]
|
|
xchg edx,dword[.b_x3]
|
|
mov dword[.b_x2],edx
|
|
mov edx,dword[.e_x2]
|
|
xchg edx,dword[.e_x3]
|
|
mov dword[.e_x2],edx
|
|
mov dx,.z2
|
|
xchg dx,.z3
|
|
mov .z2,dx
|
|
jmp .sort3
|
|
.sort2:
|
|
push eax ebx ecx ; store triangle coords in variables
|
|
; push ebx
|
|
; push ecx
|
|
|
|
mov edx,80008000h ; eax,ebx,ecx are ANDd together into edx which means that
|
|
and edx,ebx ; if *all* of them are negative a sign flag is raised
|
|
and edx,ecx
|
|
and edx,eax
|
|
test edx,80008000h ; Check both X&Y at once
|
|
jne .loop23_done
|
|
; mov edx,eax ; eax,ebx,ecx are ORd together into edx which means that
|
|
; or edx,ebx ; if any *one* of them is negative a sign flag is raised
|
|
; or edx,ecx
|
|
; test edx,80000000h ; Check only X
|
|
; jne .loop23_done
|
|
|
|
; cmp .x1,SIZE_X ; {
|
|
; jg .loop23_done
|
|
; cmp .x2,SIZE_X ; This can be optimized with effort
|
|
; jg .loop23_done
|
|
; cmp .x3,SIZE_X
|
|
; jg .loop23_done ; {
|
|
|
|
|
|
mov bx,.y2 ; calc delta 12
|
|
sub bx,.y1
|
|
jnz .bt_dx12_make
|
|
mov ecx,6
|
|
xor edx,edx
|
|
@@:
|
|
push edx ;dword 0
|
|
loop @b
|
|
jmp .bt_dx12_done
|
|
.bt_dx12_make:
|
|
mov ax,.x2
|
|
sub ax,.x1
|
|
cwde
|
|
movsx ebx,bx
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dx12,eax
|
|
push eax
|
|
|
|
if Ext=SSE
|
|
|
|
sub esp,16
|
|
cvtsi2ss xmm3,ebx ;rcps
|
|
; mov eax,255
|
|
cvtsi2ss xmm4,[i255d] ;eax
|
|
divss xmm3,xmm4
|
|
rcpss xmm3,xmm3
|
|
; mulss xmm3,xmm4
|
|
shufps xmm3,xmm3,0
|
|
|
|
movd mm0,[.b_x1]
|
|
movd mm1,[.b_x2]
|
|
movd mm2,[.e_x1]
|
|
movd mm3,[.e_x2]
|
|
; psubsw mm3,mm2
|
|
; psubsw mm1,mm0
|
|
pxor mm4,mm4
|
|
punpcklwd mm0,mm4
|
|
punpcklwd mm1,mm4
|
|
punpcklwd mm2,mm4
|
|
punpcklwd mm3,mm4
|
|
; pslld mm0,ROUND
|
|
; pslld mm1,ROUND
|
|
; pslld mm2,ROUND
|
|
; pslld mm3,ROUND
|
|
cvtpi2ps xmm0,mm0
|
|
movlhps xmm0,xmm0
|
|
cvtpi2ps xmm0,mm2
|
|
cvtpi2ps xmm1,mm1
|
|
movlhps xmm1,xmm1
|
|
cvtpi2ps xmm1,mm3
|
|
subps xmm1,xmm0
|
|
|
|
; pxor mm4,mm4
|
|
; movq mm5,mm1
|
|
; movq mm6,mm1
|
|
; pcmpeqb mm5,mm4
|
|
; psubd mm1,mm0
|
|
; psubd mm3,mm2
|
|
|
|
; movq mm0,[.b_x1] ; bx1 by1 bx2 by2
|
|
; movq mm1,[.e_x1] ; ex1 ey1 ex2 ey2
|
|
; pxor
|
|
; punpcklhd mm0,mm1 ; lwd ;
|
|
; psubw mm1,mm0 ; mm1, mm0
|
|
; pxor mm2,mm2
|
|
; pmovmaskb eax,mm1
|
|
; and eax,10101010b
|
|
; pcmpgtw mm2,mm1
|
|
; punpcklwd mm1,mm2
|
|
; psllw mm0,ROUND
|
|
; psllw mm1,ROUND
|
|
; movq mm2,mm0
|
|
; psrlq mm0,32
|
|
|
|
; cvtpi2ps xmm0,mm1
|
|
; movlhps xmm0,xmm0
|
|
; cvtpi2ps xmm0,mm3
|
|
; divps xmm1,xmm3
|
|
mulps xmm1,xmm3
|
|
shufps xmm1,xmm1,10110001b
|
|
cvtps2pi mm0,xmm1 ; mm0 -> 2 delta dwords
|
|
movhlps xmm1,xmm1
|
|
cvtps2pi mm1,xmm1
|
|
movq .dey12q,mm0
|
|
movq .dby12q,mm1
|
|
|
|
; movd .dex12,mm0
|
|
; psrlq mm0,32
|
|
; movd .dey12,mm0
|
|
; movhlps xmm1,xmm1
|
|
; cvtps2pi mm0,xmm1
|
|
; movd .dbx12,mm0
|
|
; psrlq mm0,32
|
|
; movd .dby12,mm0
|
|
|
|
else
|
|
mov ax,word[.b_x2]
|
|
sub ax,word[.b_x1]
|
|
cwde
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dbx12,eax
|
|
push eax
|
|
|
|
mov ax,word[.b_y2]
|
|
sub ax,word[.b_y1]
|
|
cwde
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dby12,eax
|
|
push eax
|
|
|
|
; mov eax,.dbx12
|
|
; mov ebx,.dby12
|
|
; int3
|
|
|
|
mov ax,word[.e_x2]
|
|
sub ax,word[.e_x1]
|
|
cwde
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dex12,eax
|
|
push eax
|
|
|
|
mov ax,word[.e_y2]
|
|
sub ax,word[.e_y1]
|
|
cwde
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dey12,eax
|
|
push eax
|
|
|
|
end if
|
|
mov ax,.z2
|
|
sub ax,.z1
|
|
cwde
|
|
shl eax,CATMULL_SHIFT
|
|
cdq
|
|
idiv ebx
|
|
push eax
|
|
.bt_dx12_done:
|
|
|
|
mov bx,.y3 ; calc delta13
|
|
sub bx,.y1
|
|
jnz .bt_dx13_make
|
|
mov ecx,6
|
|
xor edx,edx
|
|
@@:
|
|
push edx ;dword 0
|
|
loop @b
|
|
jmp .bt_dx13_done
|
|
.bt_dx13_make:
|
|
mov ax,.x3
|
|
sub ax,.x1
|
|
cwde
|
|
movsx ebx,bx
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dx13,eax
|
|
push eax
|
|
|
|
if Ext=SSE
|
|
|
|
cvtsi2ss xmm3,ebx
|
|
; mov eax,255
|
|
cvtsi2ss xmm4,[i255d]
|
|
divss xmm3,xmm4
|
|
rcpss xmm3,xmm3
|
|
; mulss xmm3,xmm4
|
|
shufps xmm3,xmm3,0
|
|
sub esp,16
|
|
|
|
movd mm0,[.b_x1]
|
|
movd mm1,[.b_x3]
|
|
movd mm2,[.e_x1]
|
|
movd mm3,[.e_x3]
|
|
|
|
pxor mm4,mm4
|
|
punpcklwd mm0,mm4
|
|
punpcklwd mm1,mm4
|
|
punpcklwd mm2,mm4
|
|
punpcklwd mm3,mm4
|
|
|
|
cvtpi2ps xmm0,mm0
|
|
movlhps xmm0,xmm0
|
|
cvtpi2ps xmm0,mm2
|
|
cvtpi2ps xmm1,mm1
|
|
movlhps xmm1,xmm1
|
|
cvtpi2ps xmm1,mm3
|
|
subps xmm1,xmm0
|
|
|
|
; divps xmm1,xmm3
|
|
mulps xmm1,xmm3
|
|
shufps xmm1,xmm1,10110001b
|
|
cvtps2pi mm0,xmm1 ; mm0 -> 2 delta dwords
|
|
movhlps xmm1,xmm1
|
|
cvtps2pi mm1,xmm1
|
|
movq .dey13q,mm0
|
|
movq .dby13q,mm1
|
|
|
|
else
|
|
|
|
mov ax,word[.b_x3]
|
|
sub ax,word[.b_x1]
|
|
cwde
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dbx13,eax
|
|
push eax
|
|
|
|
mov ax,word[.b_y3]
|
|
sub ax,word[.b_y1]
|
|
cwde
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dby13,eax
|
|
push eax
|
|
|
|
mov ax,word[.e_x3]
|
|
sub ax,word[.e_x1]
|
|
cwde
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dex13,eax
|
|
push eax
|
|
|
|
mov ax,word[.e_y3]
|
|
sub ax,word[.e_y1]
|
|
cwde
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dey13,eax
|
|
push eax
|
|
|
|
end if
|
|
|
|
mov ax,.z3
|
|
sub ax,.z1
|
|
cwde
|
|
shl eax,CATMULL_SHIFT
|
|
cdq
|
|
idiv ebx
|
|
; mov .dz13,eax
|
|
push eax
|
|
.bt_dx13_done:
|
|
|
|
mov bx,.y3 ; calc delta23
|
|
sub bx,.y2
|
|
jnz .bt_dx23_make
|
|
mov ecx,6
|
|
xor edx,edx
|
|
@@:
|
|
push edx ;dword 0
|
|
loop @b
|
|
jmp .bt_dx23_done
|
|
.bt_dx23_make:
|
|
mov ax,.x3
|
|
sub ax,.x2
|
|
cwde
|
|
movsx ebx,bx
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dx23,eax
|
|
push eax
|
|
|
|
if Ext=SSE
|
|
|
|
cvtsi2ss xmm3,ebx
|
|
; mov eax,255
|
|
cvtsi2ss xmm4,[i255d] ;eax
|
|
divss xmm3,xmm4
|
|
shufps xmm3,xmm3,0
|
|
sub esp,16
|
|
|
|
movd mm0,[.b_x2]
|
|
movd mm1,[.b_x3]
|
|
movd mm2,[.e_x2]
|
|
movd mm3,[.e_x3]
|
|
|
|
pxor mm4,mm4
|
|
punpcklwd mm0,mm4
|
|
punpcklwd mm1,mm4
|
|
punpcklwd mm2,mm4
|
|
punpcklwd mm3,mm4
|
|
|
|
cvtpi2ps xmm0,mm0
|
|
movlhps xmm0,xmm0
|
|
cvtpi2ps xmm0,mm2
|
|
cvtpi2ps xmm1,mm1
|
|
movlhps xmm1,xmm1
|
|
cvtpi2ps xmm1,mm3
|
|
subps xmm1,xmm0
|
|
|
|
divps xmm1,xmm3
|
|
shufps xmm1,xmm1,10110001b
|
|
cvtps2pi mm0,xmm1 ; mm0 -> 2 delta dwords
|
|
movhlps xmm1,xmm1
|
|
cvtps2pi mm1,xmm1
|
|
movq .dey23q,mm0
|
|
movq .dby23q,mm1
|
|
|
|
else
|
|
|
|
mov ax,word[.b_x3]
|
|
sub ax,word[.b_x2]
|
|
cwde
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dbx23,eax
|
|
push eax
|
|
|
|
mov ax,word[.b_y3]
|
|
sub ax,word[.b_y2]
|
|
cwde
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dby23,eax
|
|
push eax
|
|
|
|
mov ax,word[.e_x3]
|
|
sub ax,word[.e_x2]
|
|
cwde
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dex23,eax
|
|
push eax
|
|
|
|
mov ax,word[.e_y3]
|
|
sub ax,word[.e_y2]
|
|
cwde
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dey23,eax
|
|
push eax
|
|
end if
|
|
mov ax,.z3
|
|
sub ax,.z2
|
|
cwde
|
|
shl eax,CATMULL_SHIFT
|
|
cdq
|
|
idiv ebx
|
|
; mov .dz23,eax
|
|
push eax
|
|
; sub esp,40
|
|
.bt_dx23_done:
|
|
movsx eax,.x1
|
|
shl eax,ROUND
|
|
; mov .cx1,eax
|
|
; mov .cx2,eax
|
|
push eax eax
|
|
; push eax
|
|
|
|
movsx eax,word[.b_x1]
|
|
shl eax,ROUND
|
|
mov .cbx1,eax
|
|
mov .cbx2,eax
|
|
; push eax eax
|
|
; push eax
|
|
|
|
movsx eax,word[.b_y1]
|
|
shl eax,ROUND
|
|
mov .cby1,eax
|
|
mov .cby2,eax
|
|
; push eax eax
|
|
; push eax
|
|
|
|
movsx eax,word[.e_x1]
|
|
shl eax,ROUND
|
|
mov .cex1,eax
|
|
mov .cex2,eax
|
|
; push eax eax
|
|
;push eax
|
|
|
|
movsx eax,word[.e_y1]
|
|
shl eax,ROUND
|
|
mov .cey1,eax
|
|
mov .cey2,eax
|
|
sub esp,32
|
|
; push eax eax
|
|
;push eax
|
|
|
|
movsx eax,.z1
|
|
shl eax,CATMULL_SHIFT
|
|
; mov .cz1,eax
|
|
; mov .cz2,eax
|
|
push eax eax
|
|
;push eax
|
|
|
|
movsx ecx,.y1
|
|
cmp cx,.y2
|
|
jge .loop12_done
|
|
.loop12:
|
|
call .call_line
|
|
|
|
mov eax,.dx13
|
|
add .cx1,eax
|
|
mov ebx,.dx12
|
|
add .cx2,ebx
|
|
if Ext>= SSE2
|
|
movups xmm0,.cey1
|
|
movups xmm1,.cey2
|
|
movups xmm2,.dey12q
|
|
movups xmm3,.dey13q
|
|
paddd xmm0,xmm3
|
|
paddd xmm1,xmm2
|
|
movups .cey1,xmm0
|
|
movups .cey2,xmm1
|
|
else if (Ext = MMX) | (Ext=SSE)
|
|
movq mm0,.cby2 ; with this optimization object
|
|
movq mm1,.cby1 ; looks bit annoying
|
|
movq mm2,.cey2
|
|
movq mm3,.cey1
|
|
paddd mm0,.dby12q
|
|
paddd mm1,.dby13q
|
|
paddd mm2,.dey12q
|
|
paddd mm3,.dey13q
|
|
movq .cby2,mm0
|
|
movq .cby1,mm1
|
|
movq .cey1,mm3
|
|
movq .cey2,mm2
|
|
else
|
|
mov edx,.dbx13
|
|
add .cbx1,edx
|
|
mov eax,.dbx12
|
|
add .cbx2,eax
|
|
mov ebx,.dby13
|
|
add .cby1,ebx
|
|
mov edx,.dby12
|
|
add .cby2,edx
|
|
|
|
mov eax,.dex13
|
|
add .cex1,eax
|
|
mov ebx,.dex12
|
|
add .cex2,ebx
|
|
mov edx,.dey13
|
|
add .cey1,edx
|
|
mov eax,.dey12
|
|
add .cey2,eax
|
|
|
|
end if
|
|
mov ebx,.dz13
|
|
add .cz1,ebx
|
|
mov edx,.dz12
|
|
add .cz2,edx
|
|
|
|
inc ecx
|
|
cmp cx,.y2
|
|
jl .loop12
|
|
.loop12_done:
|
|
|
|
movsx ecx,.y2
|
|
cmp cx,.y3
|
|
jge .loop23_done
|
|
|
|
movsx eax,.z2
|
|
shl eax,CATMULL_SHIFT
|
|
mov .cz2,eax
|
|
|
|
movsx eax,.x2
|
|
shl eax,ROUND
|
|
mov .cx2,eax
|
|
|
|
movzx eax,word[.b_x2]
|
|
shl eax,ROUND
|
|
mov .cbx2,eax
|
|
|
|
movzx eax,word[.b_y2]
|
|
shl eax,ROUND
|
|
mov .cby2,eax
|
|
|
|
movzx eax,word[.e_x2]
|
|
shl eax,ROUND
|
|
mov .cex2,eax
|
|
|
|
movzx eax,word[.e_y2]
|
|
shl eax,ROUND
|
|
mov .cey2,eax
|
|
|
|
.loop23:
|
|
call .call_line
|
|
;if Ext = NON
|
|
mov eax,.dx13
|
|
add .cx1,eax
|
|
mov ebx,.dx23
|
|
add .cx2,ebx
|
|
if Ext>= SSE2
|
|
movups xmm0,.cey1
|
|
movups xmm1,.cey2
|
|
movups xmm2,.dey23q
|
|
movups xmm3,.dey13q
|
|
paddd xmm0,xmm3
|
|
paddd xmm1,xmm2
|
|
movups .cey1,xmm0
|
|
movups .cey2,xmm1
|
|
else if (Ext = MMX) | ( Ext = SSE)
|
|
movq mm0,.cby2 ; with this mmx optimization object looks bit
|
|
movq mm1,.cby1 ; annoying
|
|
movq mm2,.cey2
|
|
movq mm3,.cey1
|
|
paddd mm0,.dby23q
|
|
paddd mm1,.dby13q
|
|
paddd mm2,.dey23q
|
|
paddd mm3,.dey13q
|
|
movq .cby2,mm0
|
|
movq .cby1,mm1
|
|
movq .cey2,mm2
|
|
movq .cey1,mm3
|
|
|
|
else
|
|
mov edx,.dbx13
|
|
add .cbx1,edx
|
|
mov eax,.dbx23
|
|
add .cbx2,eax
|
|
mov ebx,.dby13
|
|
add .cby1,ebx
|
|
mov edx,.dby23
|
|
add .cby2,edx
|
|
|
|
mov eax,.dex13
|
|
add .cex1,eax
|
|
mov ebx,.dex23
|
|
add .cex2,ebx
|
|
mov edx,.dey13
|
|
add .cey1,edx
|
|
mov eax,.dey23
|
|
add .cey2,eax
|
|
end if
|
|
|
|
mov ebx,.dz13
|
|
add .cz1,ebx
|
|
mov edx,.dz23
|
|
add .cz2,edx
|
|
;else
|
|
; movq mm0,.db13q
|
|
; movq mm1,.cbx1q
|
|
|
|
inc ecx
|
|
cmp cx,.y3
|
|
jl .loop23
|
|
.loop23_done:
|
|
|
|
mov esp,ebp
|
|
ret 34
|
|
|
|
.call_line:
|
|
|
|
pushad
|
|
|
|
push .cz1
|
|
push .cz2
|
|
push .z_buff
|
|
push .t_bmap
|
|
push .t_emap
|
|
push dword .cey2
|
|
push .cex2
|
|
push dword .cey1
|
|
push .cex1
|
|
push dword .cby2
|
|
push .cbx2
|
|
push dword .cby1
|
|
push .cbx1
|
|
push ecx
|
|
|
|
mov eax,.cx1
|
|
sar eax,ROUND
|
|
mov ebx,.cx2
|
|
sar ebx,ROUND
|
|
|
|
call two_tex_line_z
|
|
|
|
popad
|
|
ret
|
|
two_tex_line_z:
|
|
;--------------in: eax - x1
|
|
;-------------- ebx - x2
|
|
;-------------- edi - pointer to screen buffer
|
|
;stack - another parameters :
|
|
.y equ dword [ebp+4]
|
|
.bx1 equ [ebp+8] ; ---
|
|
.by1 equ [ebp+12] ; |
|
|
.bx2 equ [ebp+16] ; |
|
|
.by2 equ [ebp+20] ; |> b. texture and e. texture coords
|
|
.ex1 equ [ebp+24] ; |> shifted shl ROUND
|
|
.ey1 equ [ebp+28] ; |
|
|
.ex2 equ [ebp+32] ; |
|
|
.ey2 equ [ebp+36] ; ---
|
|
.emap equ [ebp+40] ; b texture offset
|
|
.bmap equ [ebp+44] ; e texture offset
|
|
.z_buff equ dword [ebp+48]
|
|
.z2 equ dword [ebp+52] ; -- |> z coords shifted
|
|
.z1 equ dword [ebp+56] ; -- shl CATMULL_SHIFT
|
|
|
|
.x1 equ dword [ebp-4]
|
|
.x2 equ dword [ebp-8]
|
|
.dbx equ [ebp-12]
|
|
.dex equ [ebp-16]
|
|
.dby equ [ebp-20]
|
|
.dey equ [ebp-24]
|
|
.dz equ dword [ebp-28]
|
|
.cbx equ [ebp-32]
|
|
.cex equ [ebp-36]
|
|
.cby equ [ebp-40]
|
|
.cey equ [ebp-44]
|
|
.cz equ dword [ebp-48]
|
|
.czbuff equ dword [ebp-52]
|
|
|
|
mov ebp,esp
|
|
|
|
mov ecx,.y
|
|
or ecx,ecx
|
|
jl .bl_end
|
|
cmp ecx,SIZE_Y
|
|
jge .bl_end
|
|
|
|
cmp eax,ebx
|
|
jl @f
|
|
je .bl_end
|
|
|
|
xchg eax,ebx
|
|
if Ext=NON
|
|
mov edx,.bx1
|
|
xchg edx,.bx2
|
|
mov .bx1,edx
|
|
mov edx,.by1
|
|
xchg edx,.by2
|
|
mov .by1,edx
|
|
|
|
mov edx,.ex1
|
|
xchg edx,.ex2
|
|
mov .ex1,edx
|
|
mov edx,.ey1
|
|
xchg edx,.ey2
|
|
mov .ey1,edx
|
|
else
|
|
movq mm0,.bx1
|
|
movq mm1,.ex1
|
|
movq mm2,.bx2
|
|
movq mm3,.ex2
|
|
movq .bx2,mm0
|
|
movq .ex2,mm1
|
|
movq .bx1,mm2
|
|
movq .ex1,mm3
|
|
end if
|
|
mov edx,.z1
|
|
xchg edx,.z2
|
|
mov .z1,edx
|
|
@@:
|
|
push eax ebx
|
|
; push ebx ;store x1, x2
|
|
|
|
cmp .x1,SIZE_X
|
|
jge .bl_end
|
|
cmp .x2,0
|
|
jle .bl_end
|
|
|
|
mov ebx,.x2
|
|
sub ebx,.x1
|
|
|
|
if Ext>=SSE
|
|
|
|
sub esp,16
|
|
cvtsi2ss xmm3,ebx ;rcps
|
|
shufps xmm3,xmm3,0
|
|
|
|
; movq mm0,.bx1q
|
|
; movq mm1,.bx2q
|
|
; movq mm2,.ex1q
|
|
; movq mm3,.ex2q
|
|
; psubd mm1,mm0
|
|
; psubd mm3,mm2
|
|
; cvtpi2ps xmm1,mm1
|
|
; movlhps xmm1,xmm1
|
|
; cvtpi2ps xmm1,mm3
|
|
|
|
cvtpi2ps xmm0,.bx1 ;mm0 ; bx1; by1
|
|
movlhps xmm0,xmm0
|
|
cvtpi2ps xmm0,.ex1 ;mm2 ; ex1; ey1
|
|
cvtpi2ps xmm1,.bx2 ;mm1 ; bx2; by2
|
|
movlhps xmm1,xmm1
|
|
cvtpi2ps xmm1,.ex2 ;mm3 ; ex2; ey2
|
|
subps xmm1,xmm0
|
|
; hi lo
|
|
divps xmm1,xmm3 ; xmm1 -> dby; dbx; dey; dex
|
|
|
|
shufps xmm1,xmm1,11011000b
|
|
cvtps2pi mm0,xmm1 ; mm0 -> 2 delta dwords
|
|
movhlps xmm1,xmm1
|
|
cvtps2pi mm1,xmm1
|
|
movq .dex,mm0 ; hi - lo -> dbx, dex
|
|
movq .dey,mm1 ; hi - lo -> dby, dey
|
|
|
|
else
|
|
|
|
mov eax,.bx2 ; calc .dbx
|
|
sub eax,.bx1
|
|
cdq
|
|
idiv ebx
|
|
push eax
|
|
|
|
mov eax,.ex2 ; calc .dby
|
|
sub eax,.ex1
|
|
cdq
|
|
idiv ebx
|
|
push eax
|
|
|
|
mov eax,.by2 ; calc .dex
|
|
sub eax,.by1
|
|
cdq
|
|
idiv ebx
|
|
push eax
|
|
|
|
mov eax,.ey2 ; calc .dey
|
|
sub eax,.ey1
|
|
cdq
|
|
idiv ebx
|
|
push eax
|
|
|
|
end if
|
|
|
|
mov eax,.z2 ; calc .dz
|
|
sub eax,.z1
|
|
cdq
|
|
idiv ebx
|
|
push eax
|
|
|
|
cmp .x1,0 ; set correctly begin variable
|
|
jge @f ; CLIPPING ON FUNCTION
|
|
; cutting triangle exceedes screen
|
|
mov ebx,.x1
|
|
neg ebx
|
|
imul ebx ; eax = .dz * abs(.x1)
|
|
add .z1,eax
|
|
mov .x1,0
|
|
|
|
mov eax,.dbx
|
|
imul ebx
|
|
add .bx1,eax
|
|
|
|
mov eax,.dby
|
|
imul ebx
|
|
add .by1,eax
|
|
|
|
mov eax,.dex
|
|
imul ebx
|
|
add .ex1,eax
|
|
|
|
mov eax,.dey
|
|
imul ebx
|
|
add .ey1,eax
|
|
@@:
|
|
cmp .x2,SIZE_X
|
|
jl @f
|
|
mov .x2,SIZE_X
|
|
@@:
|
|
mov eax,SIZE_X ;calc memory begin in buffers
|
|
mov ebx,.y
|
|
mul ebx
|
|
mov ebx,.x1
|
|
add eax,ebx
|
|
mov ebx,eax
|
|
lea eax,[eax*3]
|
|
add edi,eax ; edi - screen
|
|
mov esi,.z_buff ; z-buffer filled with dd variables
|
|
shl ebx,2
|
|
add esi,ebx ; esi - Z buffer
|
|
|
|
mov ecx,.x2
|
|
sub ecx,.x1
|
|
; init current variables
|
|
push dword .bx1 ;.by1 .ex1 .ey1 .z1 esi
|
|
push dword .ex1
|
|
push dword .by1
|
|
push dword .ey1
|
|
|
|
push .z1 ; current z shl CATMULL_SHIFT
|
|
push esi
|
|
|
|
if Ext >= MMX
|
|
pxor mm0,mm0
|
|
movq mm3,.cex ; hi - lo -> cbx; cex
|
|
movq mm4,.cey ; hi - lo -> cby; cey
|
|
; movq mm5,mm3
|
|
; movq mm6,mm4
|
|
; psrad mm5,ROUND
|
|
; psrad mm6,ROUND
|
|
; movq .ceyq,mm5
|
|
; movq .cbyq,mm6
|
|
mov edx,.czbuff
|
|
else
|
|
cld
|
|
end if
|
|
.draw:
|
|
; if TEX = SHIFTING ;bump drawing only in shifting mode
|
|
if Ext=NON
|
|
mov esi,.czbuff ; .czbuff current address in buffer
|
|
mov ebx,.cz ; .cz - cur z position
|
|
cmp ebx,dword[esi]
|
|
else
|
|
mov ebx,.cz
|
|
cmp ebx,dword[edx]
|
|
end if
|
|
jge .skip
|
|
|
|
if Ext=NON
|
|
mov eax,.cby
|
|
mov esi,.cbx
|
|
sar eax,ROUND
|
|
sar esi,ROUND
|
|
shl eax,TEX_SHIFT ;-
|
|
add esi,eax
|
|
lea esi,[esi*3] ;- ; esi - current b. texture addres
|
|
add esi,.bmap
|
|
|
|
mov ebx,.cex ;.cex - current env map X
|
|
mov eax,.cey ;.cey - current env map y
|
|
sar ebx,ROUND
|
|
sar eax,ROUND
|
|
|
|
shl eax,TEX_SHIFT
|
|
add ebx,eax
|
|
lea ebx,[ebx*3]
|
|
add ebx,.emap
|
|
|
|
|
|
else
|
|
movq mm5,mm4 ;.cey
|
|
psrad mm5,ROUND
|
|
pslld mm5,TEX_SHIFT
|
|
movq mm6,mm3 ;.cex
|
|
psrad mm6,ROUND
|
|
paddd mm5,mm6
|
|
movq mm6,mm5
|
|
paddd mm5,mm5
|
|
paddd mm5,mm6
|
|
paddd mm5,.emap
|
|
movd esi,mm5
|
|
psrlq mm5,32
|
|
movd ebx,mm5
|
|
end if
|
|
if Ext>=MMX
|
|
movd mm1,[esi]
|
|
movd mm2,[ebx]
|
|
punpcklbw mm1,mm0
|
|
punpcklbw mm2,mm0
|
|
pmullw mm1,mm2
|
|
psrlw mm1,8
|
|
packuswb mm1,mm0
|
|
movd [edi],mm1
|
|
mov ebx,.cz
|
|
mov dword[edx],ebx
|
|
else
|
|
cld ; esi - tex e.
|
|
lodsb ; ebx - tex b.
|
|
mov dl,[ebx]
|
|
mul dl
|
|
shr ax,8
|
|
stosb
|
|
inc ebx
|
|
lodsb
|
|
mov dl,[ebx]
|
|
mul dl
|
|
shr ax,8
|
|
stosb
|
|
inc ebx
|
|
lodsb
|
|
mov dl,[ebx]
|
|
mul dl
|
|
shr ax,8
|
|
stosb
|
|
mov ebx,.cz
|
|
mov esi,.czbuff
|
|
mov dword[esi],ebx
|
|
jmp .no_skip
|
|
end if
|
|
.skip:
|
|
add edi,3
|
|
|
|
if Ext = NON
|
|
.no_skip:
|
|
add .czbuff,4
|
|
mov eax,.dbx
|
|
add .cbx,eax
|
|
mov eax,.dby
|
|
add .cby,eax
|
|
mov eax,.dex
|
|
add .cex,eax
|
|
mov eax,.dey
|
|
add .cey,eax
|
|
else
|
|
add edx,4
|
|
paddd mm3,.dex
|
|
paddd mm4,.dey
|
|
; movq mm5,mm3
|
|
; movq mm6,mm4
|
|
; psrad mm5,ROUND
|
|
; psrad mm6,ROUND
|
|
; movq .cex,mm3
|
|
; movq .cey,mm4
|
|
end if
|
|
mov eax,.dz
|
|
add .cz,eax
|
|
if Ext = NON
|
|
dec ecx
|
|
jnz .draw
|
|
else
|
|
loop .draw
|
|
end if
|
|
|
|
.bl_end:
|
|
mov esp,ebp
|
|
ret 56
|
|
|