forked from KolibriOS/kolibrios
1353 lines
28 KiB
Plaintext
1353 lines
28 KiB
Plaintext
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;CATMULL_SHIFT equ 8
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;TEXTURE_SIZE EQU (TEX_X * TEX_Y)-1
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;ROUND equ 8
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;Ext = NON
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;MMX = 1
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;NON = 0
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;------- Big thanks to Majuma (www.majuma.xt.pl) for absolutely great---
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;------- DOS 13h mode demos --------------------------------------------
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;------- Procedure draws bump triangle with texture, I use -------------
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;--------Catmull Z-buffer algorithm- (Z coordinate interpolation)-------
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;--------I calc texture pixel by this way: col1*col2/256 ---------------
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bump_tex_triangle_z:
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;------------------in - eax - x1 shl 16 + y1 -----------
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;---------------------- ebx - x2 shl 16 + y2 -----------
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;---------------------- ecx - x3 shl 16 + y3 -----------
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;---------------------- edx - pointer to bump map-------
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;---------------------- esi - pointer to env map--------
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;---------------------- edi - pointer to screen buffer--
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;---------------------- stack : bump coordinates--------
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;---------------------- environment coordinates-
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;---------------------- Z position coordinates--
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;---------------------- pointer to Z buffer-----
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;---------------------- pointer to texture------
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;---------------------- texture coordinates-----
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;-- Z-buffer - filled with coordinates as dword --------
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;-- (Z coor. as word) shl CATMULL_SHIFT ----------------
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.b_x1 equ ebp+4 ; procedure don't save registers !!!
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.b_y1 equ ebp+6 ; each coordinate as word
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.b_x2 equ ebp+8
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.b_y2 equ ebp+10 ; b - bump map coords
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.b_x3 equ ebp+12 ; e - env map coords
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.b_y3 equ ebp+14
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.e_x1 equ ebp+16
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.e_y1 equ ebp+18
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.e_x2 equ ebp+20
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.e_y2 equ ebp+22
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.e_x3 equ ebp+24
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.e_y3 equ ebp+26
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.z1 equ word[ebp+28]
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.z2 equ word[ebp+30]
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.z3 equ word[ebp+32]
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.z_buff equ dword[ebp+34] ; pointer to Z-buffer
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.tex_ptr equ dword[ebp+38] ; ptr to texture
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.t_x1 equ ebp+42 ; texture coords
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.t_y1 equ ebp+44
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.t_x2 equ ebp+46
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.t_y2 equ ebp+48
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.t_x3 equ ebp+50
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.t_y3 equ ebp+52
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.t_bmap equ dword[ebp-4] ; pointer to bump map
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.t_emap equ dword[ebp-8] ; pointer to env map
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.x1 equ word[ebp-10]
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.y1 equ word[ebp-12]
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.x2 equ word[ebp-14]
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.y2 equ word[ebp-16]
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.x3 equ word[ebp-18]
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.y3 equ word[ebp-20]
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.dx12 equ dword[ebp-24]
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.dz12 equ [ebp-28]
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.dbx12 equ dword[ebp-32]
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.dby12 equ [ebp-36]
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.dex12 equ dword[ebp-40]
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.dey12 equ [ebp-44]
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.dtx12 equ dword[ebp-48]
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.dty12 equ [ebp-52]
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.dx13 equ dword[ebp-52-4*1]
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.dz13 equ [ebp-52-4*2]
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.dbx13 equ dword[ebp-52-4*3]
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.dby13 equ [ebp-52-4*4]
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.dex13 equ dword[ebp-52-4*5]
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.dey13 equ [ebp-52-4*6]
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.dtx13 equ dword[ebp-52-4*7]
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.dty13 equ [ebp-52-4*8]
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.dx23 equ dword[ebp-(52+4*9)]
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.dz23 equ [ebp-(52+4*10)]
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.dbx23 equ dword[ebp-(52+4*11)]
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.dby23 equ [ebp-(52+4*12)]
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.dex23 equ dword[ebp-(52+4*13)]
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.dey23 equ [ebp-(52+4*14)]
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.dtx23 equ dword[ebp-(52+4*15)]
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.dty23 equ [ebp-(52+4*16)]
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.cx1 equ dword[ebp-(52+4*17)] ; current variables
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.cz1 equ [ebp-(52+4*18)]
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.cx2 equ dword[ebp-(52+4*19)]
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.cz2 equ [ebp-(52+4*20)]
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.cbx1 equ dword[ebp-(52+4*21)]
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.cby1 equ [ebp-(52+4*22)]
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.cbx2 equ dword[ebp-(52+4*23)]
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.cby2 equ [ebp-(52+4*24)]
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.cex1 equ dword[ebp-(52+4*25)]
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.cey1 equ [ebp-(52+4*26)]
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.cex2 equ dword[ebp-(52+4*27)]
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.cey2 equ [ebp-(52+4*28)]
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.ctx1 equ dword[ebp-(52+4*29)]
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.cty1 equ [ebp-(52+4*30)]
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.ctx2 equ dword[ebp-(52+4*31)]
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.cty2 equ [ebp-(52+4*32)]
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cld
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mov ebp,esp
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push edx ; store bump map
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push esi ; store e. map
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; sub esp,120
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.sort3: ; sort triangle coordinates...
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cmp ax,bx
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jle .sort1
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xchg eax,ebx
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mov edx,dword[.b_x1]
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xchg edx,dword[.b_x2]
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mov dword[.b_x1],edx
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mov edx,dword[.e_x1]
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xchg edx,dword[.e_x2]
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mov dword[.e_x1],edx
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mov edx,dword[.t_x1]
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xchg edx,dword[.t_x2]
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mov dword[.t_x1],edx
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mov dx,.z1
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xchg dx,.z2
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mov .z1,dx
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.sort1:
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cmp bx,cx
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jle .sort2
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xchg ebx,ecx
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mov edx,dword[.b_x2]
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xchg edx,dword[.b_x3]
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mov dword[.b_x2],edx
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mov edx,dword[.e_x2]
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xchg edx,dword[.e_x3]
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mov dword[.e_x2],edx
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mov edx,dword[.t_x2]
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xchg edx,dword[.t_x3]
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mov dword[.t_x2],edx
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mov dx,.z2
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xchg dx,.z3
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mov .z2,dx
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jmp .sort3
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.sort2:
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push eax ; store triangle coords in variables
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push ebx
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push ecx
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mov edx,80008000h ; eax,ebx,ecx are ANDd together into edx which means that
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and edx,ebx ; if *all* of them are negative a sign flag is raised
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and edx,ecx
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and edx,eax
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test edx,80008000h ; Check both X&Y at once
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jne .loop23_done
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; mov edx,eax ; eax,ebx,ecx are ORd together into edx which means that
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; or edx,ebx ; if any *one* of them is negative a sign flag is raised
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; or edx,ecx
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; test edx,80000000h ; Check only X
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; jne .loop23_done
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; cmp .x1,SIZE_X ; {
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; jg .loop23_done
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; cmp .x2,SIZE_X ; This can be optimized with effort
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; jg .loop23_done
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; cmp .x3,SIZE_X
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; jg .loop23_done ; {
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mov bx,.y2 ; calc delta 12
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sub bx,.y1
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jnz .bt_dx12_make
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mov ecx,8
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xor edx,edx
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@@:
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push edx ;dword 0
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loop @b
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jmp .bt_dx12_done
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.bt_dx12_make:
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mov ax,.x2
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sub ax,.x1
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cwde
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movsx ebx,bx
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dx12,eax
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push eax
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mov ax,.z2
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sub ax,.z1
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cwde
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shl eax,CATMULL_SHIFT
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cdq
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idiv ebx
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push eax
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if Ext>=SSE
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sub esp,16
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; mov eax,256
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cvtsi2ss xmm4,[i255d]
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cvtsi2ss xmm3,ebx ;rcps
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divss xmm3,xmm4
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shufps xmm3,xmm3,0
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movd mm0,[.b_x1]
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movd mm1,[.b_x2]
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movd mm2,[.e_x1]
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movd mm3,[.e_x2]
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pxor mm4,mm4
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punpcklwd mm0,mm4
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punpcklwd mm1,mm4
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punpcklwd mm2,mm4
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punpcklwd mm3,mm4
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psubd mm1,mm0
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psubd mm3,mm2
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cvtpi2ps xmm1,mm1
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movlhps xmm1,xmm1
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cvtpi2ps xmm1,mm3
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divps xmm1,xmm3 ;xmm1--> | dby | dbx | dey | dex |
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shufps xmm1,xmm1,10110001b
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;xmm1--> | dbx | dby | dex | dey |
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cvtps2pi mm0,xmm1 ; mm0 -> 2 delta dwords
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movhlps xmm1,xmm1
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cvtps2pi mm1,xmm1
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movq .dey12,mm0
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movq .dby12,mm1
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;-------------
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; mov ax,.z2
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; sub ax,.z1
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; cwde
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; mov bx,.x2
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; sub bx,.x1
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; movsx ebx,bx
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; movd mm1,eax
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; psllq mm1,32
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; movd mm1,ebx
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;; push ebx
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;; push eax
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;; movq mm1,[esp]
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;; add esp,8
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;;; mov ax,.z1
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;;; mov bx,.z2
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;;; shl eax,16
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;;; shl ebx,16
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;;; mov ax,.x1
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;;; mov bx,.x2
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; movd mm2,[.t_x1]
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; movd mm3,[.t_x2]
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;; movd mm0,eax
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;; movd mm1,ebx
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; pxor mm4,mm4
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;; punpcklwd mm0,mm4
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;; punpcklwd mm1,mm4
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; punpcklwd mm2,mm4
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; punpcklwd mm3,mm4
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;; psubd mm1,mm0
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; psubd mm3,mm2
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; cvtpi2ps xmm1,mm1
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; movlhps xmm1,xmm1
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; cvtpi2ps xmm1,mm3
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; divps xmm1,xmm3 ; xmm1--> | dz | dx | dty | dtx |
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; shufps xmm1,xmm1,10110001b
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; xmm1--> | dx | dz | dtx | dty |
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; cvtps2pi mm0,xmm1 ; mm0 -> 2 delta dwords | dtx | dty |
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; movhlps xmm1,xmm1
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; cvtps2pi mm1,xmm1 ; mm1 --> 2 delta dwords | dx | dz |
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; movq .dty12,mm0
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; movq .dz12,mm1
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else
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mov ax,word[.b_x2]
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sub ax,word[.b_x1]
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cwde
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dbx12,eax
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push eax
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mov ax,word[.b_y2]
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sub ax,word[.b_y1]
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cwde
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dby12,eax
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push eax
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mov ax,word[.e_x2]
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sub ax,word[.e_x1]
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cwde
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dex12,eax
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push eax
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mov ax,word[.e_y2]
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sub ax,word[.e_y1]
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cwde
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dey12,eax
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push eax
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end if
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mov ax,word[.t_x2]
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sub ax,word[.t_x1]
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cwde
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dtx12,eax
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push eax
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mov ax,word[.t_y2]
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sub ax,word[.t_y1]
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cwde
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dty12,eax
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push eax
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.bt_dx12_done:
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mov bx,.y3 ; calc delta13
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sub bx,.y1
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jnz .bt_dx13_make
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mov ecx,8
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xor edx,edx
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@@:
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push edx ;dword 0
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loop @b
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jmp .bt_dx13_done
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.bt_dx13_make:
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mov ax,.x3
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sub ax,.x1
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cwde
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movsx ebx,bx
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dx13,eax
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push eax
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mov ax,.z3
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sub ax,.z1
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cwde
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shl eax,CATMULL_SHIFT
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cdq
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idiv ebx
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; mov .dz13,eax
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push eax
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if Ext>=SSE
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sub esp,16
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; mov eax,255
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cvtsi2ss xmm4,[i255d]
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cvtsi2ss xmm3,ebx ;rcps
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divss xmm3,xmm4
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shufps xmm3,xmm3,0
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movd mm0,[.b_x1]
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movd mm1,[.b_x3]
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movd mm2,[.e_x1]
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movd mm3,[.e_x3]
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pxor mm4,mm4
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punpcklwd mm0,mm4
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punpcklwd mm1,mm4
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punpcklwd mm2,mm4
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punpcklwd mm3,mm4
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psubd mm1,mm0
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psubd mm3,mm2
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cvtpi2ps xmm1,mm1
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movlhps xmm1,xmm1
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cvtpi2ps xmm1,mm3
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divps xmm1,xmm3 ;xmm1--> | dby | dbx | dey | dex |
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shufps xmm1,xmm1,10110001b
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;xmm1--> | dbx | dby | dex | dey |
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cvtps2pi mm0,xmm1 ; mm0 -> 2 delta dwords
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movhlps xmm1,xmm1
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cvtps2pi mm1,xmm1
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movq .dey13,mm0
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movq .dby13,mm1
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else
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mov ax,word[.b_x3]
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sub ax,word[.b_x1]
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cwde
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dbx13,eax
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push eax
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mov ax,word[.b_y3]
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sub ax,word[.b_y1]
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cwde
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dby13,eax
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push eax
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mov ax,word[.e_x3]
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sub ax,word[.e_x1]
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cwde
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dex13,eax
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push eax
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mov ax,word[.e_y3]
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sub ax,word[.e_y1]
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cwde
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dey13,eax
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push eax
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end if
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mov ax,word[.t_x3]
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sub ax,word[.t_x1]
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cwde
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dtx13,eax
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push eax
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mov ax,word[.t_y3]
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sub ax,word[.t_y1]
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cwde
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dty13,eax
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push eax
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.bt_dx13_done:
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mov bx,.y3 ; calc delta23
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sub bx,.y2
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jnz .bt_dx23_make
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mov ecx,8
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xor edx,edx
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@@:
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push edx ;dword 0
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loop @b
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jmp .bt_dx23_done
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.bt_dx23_make:
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mov ax,.x3
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sub ax,.x2
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cwde
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movsx ebx,bx
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shl eax,ROUND
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cdq
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idiv ebx
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; mov .dx23,eax
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push eax
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mov ax,.z3
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sub ax,.z2
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cwde
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shl eax,CATMULL_SHIFT
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cdq
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idiv ebx
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; mov .dz23,eax
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push eax
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if Ext>=SSE
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sub esp,16
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; mov eax,255
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cvtsi2ss xmm4,[i255d]
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cvtsi2ss xmm3,ebx ;rcps
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divss xmm3,xmm4
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shufps xmm3,xmm3,0
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movd mm0,[.b_x2]
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movd mm1,[.b_x3]
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movd mm2,[.e_x2]
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movd mm3,[.e_x3]
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pxor mm4,mm4
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punpcklwd mm0,mm4
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punpcklwd mm1,mm4
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punpcklwd mm2,mm4
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punpcklwd mm3,mm4
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psubd mm1,mm0
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psubd mm3,mm2
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cvtpi2ps xmm1,mm1
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movlhps xmm1,xmm1
|
|
cvtpi2ps xmm1,mm3
|
|
|
|
divps xmm1,xmm3 ;xmm1--> | dby | dbx | dey | dex |
|
|
|
|
shufps xmm1,xmm1,10110001b
|
|
;xmm1--> | dbx | dby | dex | dey |
|
|
cvtps2pi mm0,xmm1 ; mm0 -> 2 delta dwords
|
|
movhlps xmm1,xmm1
|
|
cvtps2pi mm1,xmm1
|
|
movq .dey23,mm0
|
|
movq .dby23,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,word[.t_x3]
|
|
sub ax,word[.t_x2]
|
|
cwde
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dtx23,eax
|
|
push eax
|
|
|
|
mov ax,word[.t_y3]
|
|
sub ax,word[.t_y2]
|
|
cwde
|
|
shl eax,ROUND
|
|
cdq
|
|
idiv ebx
|
|
; mov .dty23,eax
|
|
push eax
|
|
|
|
; sub esp,40
|
|
.bt_dx23_done:
|
|
sub esp,64
|
|
movsx eax,.x1
|
|
shl eax,ROUND
|
|
mov .cx1,eax
|
|
mov .cx2,eax
|
|
; push eax
|
|
; push eax
|
|
|
|
movsx ebx,word[.b_x1]
|
|
shl ebx,ROUND
|
|
mov .cbx1,ebx
|
|
mov .cbx2,ebx
|
|
; push ebx
|
|
; push ebx
|
|
|
|
movsx ecx,word[.b_y1]
|
|
shl ecx,ROUND
|
|
mov .cby1,ecx
|
|
mov .cby2,ecx
|
|
; push ecx
|
|
; push ecx
|
|
|
|
movsx edx,word[.e_x1]
|
|
shl edx,ROUND
|
|
mov .cex1,edx
|
|
mov .cex2,edx
|
|
; push edx
|
|
; push edx
|
|
|
|
movsx eax,word[.e_y1]
|
|
shl eax,ROUND
|
|
mov .cey1,eax
|
|
mov .cey2,eax
|
|
; push eax
|
|
; push eax
|
|
|
|
movsx ebx,.z1
|
|
shl ebx,CATMULL_SHIFT
|
|
mov .cz1,ebx
|
|
mov .cz2,ebx
|
|
; push ebx
|
|
; push ebx
|
|
|
|
; sub esp,16
|
|
movsx ecx,word[.t_x1]
|
|
shl ecx,ROUND
|
|
mov .ctx1,ecx
|
|
mov .ctx2,ecx
|
|
;push ecx
|
|
;push ecx
|
|
|
|
movsx edx,word[.t_y1]
|
|
shl edx,ROUND
|
|
mov .cty1,edx
|
|
mov .cty2,edx
|
|
; push edx
|
|
; push edx
|
|
|
|
|
|
movsx ecx,.y1
|
|
cmp cx,.y2
|
|
jge .loop12_done
|
|
.loop12:
|
|
call .call_line
|
|
|
|
if Ext >= MMX
|
|
movq mm0,.cby2
|
|
movq mm1,.cby1
|
|
movq mm2,.cey2
|
|
movq mm3,.cey1
|
|
movq mm4,.cty1
|
|
movq mm5,.cty2
|
|
movq mm6,.cz1
|
|
movq mm7,.cz2
|
|
paddd mm0,.dby12
|
|
paddd mm1,.dby13
|
|
paddd mm2,.dey12
|
|
paddd mm3,.dey13
|
|
paddd mm4,.dty13
|
|
paddd mm5,.dty12
|
|
paddd mm6,.dz13
|
|
paddd mm7,.dz12
|
|
movq .cby2,mm0
|
|
movq .cby1,mm1
|
|
movq .cey1,mm3
|
|
movq .cey2,mm2
|
|
movq .cty1,mm4
|
|
movq .cty2,mm5
|
|
movq .cz1,mm6
|
|
movq .cz2,mm7
|
|
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
|
|
|
|
mov eax,.dtx13
|
|
add .ctx1,eax
|
|
mov ebx,.dtx12
|
|
add .ctx2,ebx
|
|
mov edx,.dty13
|
|
add .cty1,edx
|
|
mov eax,.dty12
|
|
add .cty2,eax
|
|
|
|
mov eax,.dx13
|
|
add .cx1,eax
|
|
mov ebx,.dx12
|
|
add .cx2,ebx
|
|
mov ebx,.dz13
|
|
add .cz1,ebx
|
|
mov edx,.dz12
|
|
add .cz2,edx
|
|
end if
|
|
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 ebx,.x2
|
|
shl ebx,ROUND
|
|
mov .cx2,ebx
|
|
|
|
movzx edx,word[.b_x2]
|
|
shl edx,ROUND
|
|
mov .cbx2,edx
|
|
|
|
movzx eax,word[.b_y2]
|
|
shl eax,ROUND
|
|
mov .cby2,eax
|
|
|
|
movzx ebx,word[.e_x2]
|
|
shl ebx,ROUND
|
|
mov .cex2,ebx
|
|
|
|
movzx edx,word[.e_y2]
|
|
shl edx,ROUND
|
|
mov .cey2,edx
|
|
|
|
movzx eax,word[.t_x2]
|
|
shl eax,ROUND
|
|
mov .ctx2,eax
|
|
|
|
movzx ebx,word[.t_y2]
|
|
shl ebx,ROUND
|
|
mov .cty2,ebx
|
|
|
|
.loop23:
|
|
call .call_line
|
|
|
|
if Ext >= MMX
|
|
movq mm0,.cby2
|
|
movq mm1,.cby1
|
|
movq mm2,.cey2
|
|
movq mm3,.cey1
|
|
movq mm4,.cty1
|
|
movq mm5,.cty2
|
|
movq mm6,.cz1
|
|
movq mm7,.cz2
|
|
paddd mm0,.dby23
|
|
paddd mm1,.dby13
|
|
paddd mm2,.dey23
|
|
paddd mm3,.dey13
|
|
paddd mm4,.dty13
|
|
paddd mm5,.dty23
|
|
paddd mm6,.dz13
|
|
paddd mm7,.dz23
|
|
movq .cby2,mm0
|
|
movq .cby1,mm1
|
|
movq .cey2,mm2
|
|
movq .cey1,mm3
|
|
movq .cty1,mm4
|
|
movq .cty2,mm5
|
|
movq .cz1,mm6
|
|
movq .cz2,mm7
|
|
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
|
|
|
|
mov eax,.dx13
|
|
add .cx1,eax
|
|
mov ebx,.dx23
|
|
add .cx2,ebx
|
|
mov ebx,.dz13
|
|
add .cz1,ebx
|
|
mov edx,.dz23
|
|
add .cz2,edx
|
|
|
|
mov eax,.dtx13
|
|
add .ctx1,eax
|
|
mov ebx,.dtx23
|
|
add .ctx2,ebx
|
|
mov edx,.dty13
|
|
add .cty1,edx
|
|
mov eax,.dty23
|
|
add .cty2,eax
|
|
|
|
end if
|
|
inc ecx
|
|
cmp cx,.y3
|
|
jl .loop23
|
|
.loop23_done:
|
|
|
|
mov esp,ebp
|
|
ret 50
|
|
|
|
.call_line:
|
|
|
|
pushad
|
|
push .tex_ptr
|
|
push dword .cty2
|
|
push .ctx2
|
|
push dword .cty1
|
|
push .ctx1
|
|
push dword .cz1
|
|
push dword .cz2
|
|
push .z_buff
|
|
push .t_emap
|
|
push .t_bmap
|
|
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 bump_tex_line_z
|
|
|
|
popad
|
|
ret
|
|
bump_tex_line_z:
|
|
;--------------in: eax - x1
|
|
;-------------- ebx - x2
|
|
;-------------- edi - pointer to screen buffer
|
|
;stack - another parameters :
|
|
.y equ dword [ebp+4]
|
|
.bx1q equ [ebp+8]
|
|
.bx2q equ [ebp+16]
|
|
.ex1q equ [ebp+24]
|
|
.ex2q equ [ebp+32]
|
|
.tx1q equ [ebp+60]
|
|
.tx2q equ [ebp+68]
|
|
;.bx1q equ [ebp+8]
|
|
;.bx2q equ [ebp+16]
|
|
;.ex1q equ [ebp+24]
|
|
;.exyq equ [ebp+32]
|
|
.bx1 equ dword [ebp+8] ; ---
|
|
.by1 equ dword [ebp+12] ; |
|
|
.bx2 equ dword [ebp+16] ; |
|
|
.by2 equ dword [ebp+20] ; |> b. map and e. map coords
|
|
.ex1 equ dword [ebp+24] ; |> shifted shl ROUND
|
|
.ey1 equ dword [ebp+28] ; |
|
|
.ex2 equ dword [ebp+32] ; |
|
|
.ey2 equ dword [ebp+36] ; ---
|
|
.bmap equ dword [ebp+40] ; bump map offset
|
|
.emap equ dword [ebp+44] ; env map offset
|
|
.z_buff equ dword [ebp+48]
|
|
.z2 equ dword [ebp+52] ; -- |> z coords shifted
|
|
.z1 equ dword [ebp+56] ; -- shl CATMULL_SHIFT
|
|
|
|
.tx1 equ dword [ebp+60] ; -----
|
|
.ty1 equ dword [ebp+64] ; |> shifted shl ROUND
|
|
.tx2 equ dword [ebp+68] ; |
|
|
.ty2 equ dword [ebp+72] ; ---
|
|
.tex_map equ dword [ebp+76] ; texture offset ( pointer )
|
|
|
|
|
|
.x1 equ dword [ebp-4]
|
|
.x2 equ dword [ebp-8]
|
|
.dbx equ dword [ebp-12]
|
|
.dby equ dword [ebp-16]
|
|
.dbyq equ qword [ebp-16] ; - new
|
|
.dex equ dword [ebp-20]
|
|
.dey equ dword [ebp-24]
|
|
.deyq equ qword [ebp-24] ; - new
|
|
.dz equ dword [ebp-28]
|
|
.dtx equ dword [ebp-32]
|
|
.dty equ dword [ebp-36]
|
|
.dtyq equ qword [ebp-36]
|
|
|
|
.cbx equ dword [ebp-40]
|
|
.cby equ dword [ebp-44]
|
|
.cbyq equ qword [ebp-44] ; - new
|
|
.cex equ dword [ebp-48]
|
|
.cey equ dword [ebp-52]
|
|
.ceyq equ qword [ebp-52] ; - new
|
|
.cz equ dword [ebp-56]
|
|
.czbuff equ dword [ebp-60]
|
|
.ctx equ dword [ebp-64]
|
|
.cty equ dword [ebp-68]
|
|
.ctyq equ qword [ebp-68]
|
|
.c_scr equ dword [ebp-72]
|
|
|
|
.temp1 equ ebp-80
|
|
.temp2 equ ebp-88
|
|
.temp3 equ ebp-76
|
|
.temp4 equ ebp-84
|
|
.temp5 equ ebp-92
|
|
|
|
mov ebp,esp
|
|
|
|
|
|
|
|
mov ecx,.y
|
|
or ecx,ecx
|
|
jl .bl_end
|
|
cmp ecx,SIZE_Y
|
|
jge .bl_end
|
|
|
|
cmp eax,ebx
|
|
jl .bl_ok
|
|
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
|
|
|
|
mov edx,.tx1
|
|
xchg edx,.tx2
|
|
mov .tx1,edx
|
|
mov edx,.ty1
|
|
xchg edx,.ty2
|
|
mov .ty1,edx
|
|
else
|
|
movq mm0,.bx1q
|
|
movq mm1,.bx2q
|
|
movq mm2,.ex1q
|
|
movq mm3,.ex2q
|
|
movq mm4,.tx1q
|
|
movq mm5,.tx2q
|
|
movq .bx2q,mm0
|
|
movq .bx1q,mm1
|
|
movq .ex1q,mm3
|
|
movq .ex2q,mm2
|
|
movq .tx1q,mm5
|
|
movq .tx2q,mm4
|
|
end if
|
|
|
|
mov edx,.z1
|
|
xchg edx,.z2
|
|
mov .z1,edx
|
|
.bl_ok:
|
|
push eax
|
|
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,28
|
|
cvtsi2ss xmm3,ebx ;rcps
|
|
shufps xmm3,xmm3,0
|
|
|
|
cvtpi2ps xmm0,.bx1q ;mm0
|
|
movlhps xmm0,xmm0
|
|
cvtpi2ps xmm0,.ex1q ;mm2
|
|
cvtpi2ps xmm1,.bx2q ;mm1
|
|
movlhps xmm1,xmm1
|
|
cvtpi2ps xmm1,.ex2q ;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 .deyq,mm0
|
|
movq .dbyq,mm1
|
|
|
|
movd mm2,.z1
|
|
movd mm3,.z2
|
|
|
|
cvtpi2ps xmm0,.tx1q ;mm0
|
|
movlhps xmm0,xmm0
|
|
cvtpi2ps xmm0,mm2
|
|
cvtpi2ps xmm1,.tx2q ;mm1
|
|
movlhps xmm1,xmm1
|
|
cvtpi2ps xmm1,mm3
|
|
subps xmm1,xmm0
|
|
|
|
divps xmm1,xmm3
|
|
|
|
shufps xmm1,xmm1,10110100b
|
|
cvtps2pi mm0,xmm1 ; mm0 -> 2 delta dwords
|
|
movhlps xmm1,xmm1
|
|
cvtps2pi mm1,xmm1
|
|
movd .dz,mm0
|
|
movq .dtyq,mm1
|
|
|
|
else
|
|
|
|
mov eax,.bx2 ; calc .dbx
|
|
sub eax,.bx1
|
|
cdq
|
|
idiv ebx
|
|
push eax
|
|
|
|
mov eax,.by2 ; calc .dby
|
|
sub eax,.by1
|
|
cdq
|
|
idiv ebx
|
|
push eax
|
|
|
|
mov eax,.ex2 ; calc .dex
|
|
sub eax,.ex1
|
|
cdq
|
|
idiv ebx
|
|
push eax
|
|
|
|
mov eax,.ey2 ; calc .dey
|
|
sub eax,.ey1
|
|
cdq
|
|
idiv ebx
|
|
push eax
|
|
|
|
|
|
mov eax,.z2 ; calc .dz
|
|
sub eax,.z1
|
|
cdq
|
|
idiv ebx
|
|
push eax
|
|
|
|
mov eax,.tx2 ; calc .dtx
|
|
sub eax,.tx1
|
|
cdq
|
|
idiv ebx
|
|
push eax
|
|
|
|
mov eax,.ty2 ; calc .dty
|
|
sub eax,.ty1
|
|
cdq
|
|
idiv ebx
|
|
push eax
|
|
|
|
end if
|
|
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
|
|
|
|
mov eax,.dtx
|
|
imul ebx
|
|
add .tx1,eax
|
|
|
|
mov eax,.dty
|
|
imul ebx
|
|
add .ty1,eax
|
|
|
|
@@:
|
|
cmp .x2,SIZE_X
|
|
jl @f
|
|
mov .x2,SIZE_X
|
|
@@:
|
|
mov eax,SIZE_X ;calc memory begin in buffers
|
|
mul .y
|
|
add eax,.x1
|
|
lea esi,[4*eax]
|
|
add esi,.z_buff ; z-buffer filled with dd variables
|
|
lea eax,[eax*3]
|
|
add edi,eax
|
|
|
|
|
|
mov ecx,.x2
|
|
sub ecx,.x1
|
|
; init current variables
|
|
push .bx1 ; current b, e and t shifted shl ROUND .cbx
|
|
push .by1 ; .cby
|
|
push .ex1 ; .cex
|
|
push .ey1 ; .cey
|
|
|
|
push .z1 ; current z shl CATMULL_SHIFT ; .cz
|
|
push esi ; .czbuff
|
|
|
|
push .tx1 ; .ctx
|
|
push .ty1 ; .cty
|
|
push edi ; .c_scr
|
|
if Ext>=MMX
|
|
movq mm7,.ctyq
|
|
movq mm6,.cbyq
|
|
movq mm5,.ceyq
|
|
; movq mm4,.dtyq
|
|
; movq mm3,.dbyq
|
|
end if
|
|
|
|
.draw:
|
|
; if TEX = SHIFTING ;bump drawing only in shifting mode
|
|
mov esi,.czbuff ; .czbuff current address in buffer
|
|
mov ebx,.cz ; .cz - cur z position
|
|
cmp ebx,dword[esi]
|
|
jge .skip
|
|
if Ext=NON
|
|
mov eax,.cby
|
|
shr eax,ROUND
|
|
mov esi,.cbx
|
|
shr esi,ROUND
|
|
else
|
|
movq mm1,mm6
|
|
psrld mm1,ROUND
|
|
movd eax,mm1
|
|
psrlq mm1,32
|
|
movd esi,mm1
|
|
end if
|
|
|
|
|
|
|
|
shl eax,TEX_SHIFT
|
|
add esi,eax ;- ; esi - current bump map index
|
|
|
|
mov ebx,esi
|
|
dec ebx
|
|
and ebx,TEXTURE_SIZE
|
|
add ebx,.bmap
|
|
movzx eax,byte [ebx]
|
|
|
|
mov ebx,esi
|
|
inc ebx
|
|
and ebx,TEXTURE_SIZE
|
|
add ebx,.bmap
|
|
movzx ebx,byte [ebx]
|
|
sub eax,ebx
|
|
|
|
mov ebx,esi
|
|
sub ebx,TEX_X
|
|
and ebx,TEXTURE_SIZE
|
|
add ebx,.bmap
|
|
movzx edx,byte [ebx]
|
|
|
|
mov ebx,esi
|
|
add ebx,TEX_X
|
|
and ebx,TEXTURE_SIZE
|
|
add ebx,.bmap
|
|
movzx ebx,byte [ebx]
|
|
sub edx,ebx
|
|
|
|
; eax - horizontal sub modificated x coord
|
|
; edx - vertical sub modificated y coord
|
|
if Ext=NON
|
|
mov ebx,.cex ;.cex - current env map X
|
|
shr ebx,ROUND
|
|
add eax,ebx
|
|
|
|
|
|
mov ebx,.cey ;.cey - current env map y
|
|
shr ebx,ROUND
|
|
add edx,ebx
|
|
|
|
else
|
|
movq mm1,mm5 ; mm5 - copy of cur env coords
|
|
psrld mm1,ROUND
|
|
movd ebx,mm1
|
|
psrlq mm1,32
|
|
add eax,ebx
|
|
movd ebx,mm1
|
|
add edx,ebx
|
|
; movq qword[.temp1],mm3
|
|
; add eax,dword [.temp1]
|
|
; add edx,dword [.temp1+4]
|
|
end if
|
|
|
|
or eax,eax
|
|
jl .black
|
|
cmp eax,TEX_X
|
|
jg .black
|
|
or edx,edx
|
|
jl .black
|
|
cmp edx,TEX_Y
|
|
jg .black
|
|
|
|
shl edx,TEX_SHIFT ; zaburzenie w emapie = zaburzenie w teksturze
|
|
add edx,eax ; proponuje nie stawiac czarnego pixela tylko
|
|
lea esi,[edx*3] ; niezaburzony.
|
|
add esi,.emap ;
|
|
lodsd
|
|
|
|
if Ext=NON
|
|
mov edx,.cty
|
|
shr edx,ROUND ; sar
|
|
|
|
mov edi,.ctx
|
|
shr edi,ROUND ; sar
|
|
else
|
|
movq mm1,mm7
|
|
psrld mm1,ROUND
|
|
movd edx,mm1
|
|
psrlq mm1,32
|
|
movd edi,mm1
|
|
|
|
end if
|
|
|
|
shl edx,TEX_SHIFT
|
|
add edi,edx
|
|
and edi,TEXTURE_SIZE
|
|
lea esi,[edi*3]
|
|
add esi,.tex_map
|
|
|
|
if Ext=NON
|
|
mov edx,eax
|
|
lodsd
|
|
push ax
|
|
mul dl
|
|
mov dl,ah
|
|
pop ax
|
|
shr ax,8
|
|
mul dh
|
|
mov al,dl
|
|
mov edi,.c_scr
|
|
stosw
|
|
shr edx,16
|
|
shr eax,16
|
|
mul dl
|
|
shr ax,8
|
|
stosb
|
|
else
|
|
movd mm0,eax
|
|
pxor mm1,mm1
|
|
punpcklbw mm0,mm1
|
|
movd mm2,[esi]
|
|
punpcklbw mm2,mm1
|
|
pmullw mm0,mm2
|
|
psrlw mm0,8
|
|
packuswb mm0,mm1
|
|
mov edi,.c_scr
|
|
movd [edi],mm0
|
|
|
|
end if
|
|
|
|
jmp .actual_zbuff ; actualize z buffer
|
|
@@:
|
|
.black:
|
|
xor eax,eax
|
|
mov edi,.c_scr
|
|
stosd
|
|
.actual_zbuff:
|
|
mov eax,.cz
|
|
mov edi,.czbuff
|
|
stosd
|
|
|
|
.skip:
|
|
add .czbuff,4
|
|
add .c_scr,3
|
|
|
|
if Ext=NON
|
|
mov eax,.dbx
|
|
add .cbx,eax
|
|
mov ebx,.dby
|
|
add .cby,ebx
|
|
|
|
mov edx,.dex
|
|
add .cex,edx
|
|
mov eax,.dey
|
|
add .cey,eax
|
|
|
|
mov ebx,.dtx
|
|
add .ctx,ebx
|
|
mov edx,.dty
|
|
add .cty,edx
|
|
|
|
else
|
|
paddd mm7,.dtyq
|
|
paddd mm6,.dbyq
|
|
paddd mm5,.deyq
|
|
end if
|
|
mov eax,.dz
|
|
add .cz,eax
|
|
|
|
dec ecx
|
|
jnz .draw
|
|
|
|
.bl_end:
|
|
mov esp,ebp
|
|
ret 76
|
|
;Ext = MMX
|
|
|
|
; else
|
|
; movq mm5, qword[.temp1] ;-
|
|
; paddd mm5, qword[.temp5] ; .temp5 == low dword = TEX_X, high dword = -TEX_X
|
|
; pand mm5, qword[.temp3] ; .temp3 == low = high dword = TEX_SIZE
|
|
; paddd mm5, qword[.temp4] ; .temp4 == low = high dword = offset .bmap
|
|
; movd ebx,mm5
|
|
; psrlq mm5,32
|
|
; end if
|