WebSVN – Kolibri OS – Blame – /programs/demos/3DS/B_PROCS.INC

Rev	Author	Line No.	Line
1245	hidnplayr	1	;init_envmap_cub2:
		2	; mov esi,envmap
		3	; mov edi,envmap_cub ;take cubic env. map from
		4	; xor eax,eax ;spherical env. map
		5	; @@:
		6	; add esi,eax
		7	; movsd
		8	; dec edi
		9	; dec esi
		10	; add esi,511*3
		11	; add eax,3
		12	; cmp eax,511*3
		13	; jl @b
		14	;ret
		15	init_envmap_cub: ; create 512x512 env map
		16	.temp equ word [ebp-2]
		17	push ebp
		18	mov ebp,esp
		19	sub esp,2
		20	mov edi,envmap_cub
		21	fninit
		22
		23	mov cx,-256
		24	.ie_hor:
		25	mov .temp,cx
		26	fild .temp
		27	fabs
		28	; fmul st,st0
		29	; fsqrt
		30	mov .temp,255
		31	fisubr .temp
		32	fmul [env_const]
		33	fistp .temp
		34	mov ax,.temp
		35
		36	or ax,ax
		37	jge .ie_ok1
		38	xor ax,ax
		39	jmp .ie_ok2
		40	.ie_ok1:
		41	cmp ax,255
		42	jle .ie_ok2
		43	mov ax,255
		44	.ie_ok2:
		45	stosb
		46	stosb
		47	stosb
		48
		49	inc cx
		50	cmp cx,256
		51	jne .ie_hor
		52
		53	mov esp,ebp
		54	pop ebp
		55	ret
		56
		57	calc_one_col:
		58	; procedure don't save registers !!!
		59	; in - st - dot_product
		60	; stack - other parameters
		61	; out - eax - 0x00rrggbb
		62	.dot_prd equ dword[ebp+4] ; dot product - cos x - not now
		63	.min_col_r equ word[ebp+8] ; minimum color - ambient
		64	.min_col_g equ word[ebp+10]
		65	.min_col_b equ word[ebp+12]
		66	.max_col_r equ word[ebp+14] ; maximum color - specular
		67	.max_col_g equ word[ebp+16]
		68	.max_col_b equ word[ebp+18]
		69	.org_col_r equ word[ebp+20] ; orginal color - diffuse
		70	.org_col_g equ word[ebp+22]
		71	.org_col_b equ word[ebp+24]
		72	.n equ word[ebp+26] ; shines - not implemented
		73	.temp equ word[ebp-2]
		74	.color_sum_r equ dword[ebp-6]
		75	.color_sum_g equ dword[ebp-10]
		76	.color_sum_b equ dword[ebp-14]
		77	; color = ambient+cos(x)diffuse+(cos(x)^n)specular
		78	mov ebp,esp
		79	sub esp,14
		80
		81	mov ax,.min_col_r
		82	add ax,.max_col_r
		83	add ax,.org_col_r
		84	cwde
		85	mov .color_sum_r,eax
		86
		87	mov ax,.min_col_g
		88	add ax,.max_col_g
		89	add ax,.org_col_g
		90	cwde
		91	mov .color_sum_g,eax
		92
		93	mov ax,.min_col_b
		94	add ax,.max_col_b
		95	add ax,.org_col_b
		96	cwde
		97	mov .color_sum_b,eax
		98
		99
		100	; fld .dot_prd
		101	; fild .n
		102	; fxch st1
		103	; fabs
		104	; fyl2x ;
		105	; f2xm1
		106	; fld1
		107	; faddp ; st = dot_product ^ n
		108
		109	fld st ; copy dot pr
		110	fmul st,st0
		111	fmul st,st0
		112	fmul st,st0
		113	cmp .n,255 ; .n = 255 -> spot light
		114	jne @f
		115	fmul st,st0
		116	fmul st,st0
		117	fmul st,st0
		118	@@:
		119	fld st ; st0=st1=dot_pr^n, st2=dot_pr
		120	fimul .max_col_b
		121	fild .org_col_b
		122	fmul st,st3
		123	faddp ; st0=first piece of col, st1=dot_pr^n..
		124	fiadd .min_col_b
		125	fimul .max_col_b
		126	fidiv .color_sum_b
		127	fistp .temp
		128	movzx eax,.temp
		129	shl eax,16
		130
		131	fld st
		132	fimul .max_col_g
		133	fild .org_col_g
		134	fmul st,st3
		135	faddp
		136	fiadd .min_col_g
		137	fimul .max_col_g
		138	fidiv .color_sum_g
		139	fistp .temp
		140	mov ax,.temp
		141	mov ah,al
		142	shl eax,8
		143
		144	fimul .max_col_r
		145	fild .org_col_r
		146	fmulp st2,st
		147	faddp
		148	fiadd .min_col_r
		149	fimul .max_col_r
		150	fidiv .color_sum_r
		151	fistp .temp
		152	mov ax,.temp ;eax - 0xbbgg00rr
		153	; mov ah,al
		154	ror eax,16
		155	xchg al,ah ; eax - 0x00rrggbb
		156	mov esp,ebp
		157	ret 24
		158
		159	calc_bumpmap: ; calculate random bumpmap
		160	;--------------in edi _ pointer to TEX_X x TEX_Y bumpmap
		161
		162	push edi
		163
		164	cmp [bumps_flag],0
		165	je .random_bump_map
		166	; else bumps according to texture
		167	mov esi,texmap
		168	mov ecx,TEXTURE_SIZE
		169	@@:
		170	movzx ax,byte[esi]
		171	movzx bx,byte[esi+1]
		172	movzx dx,byte[esi+2]
		173	add ax,bx
		174	add ax,dx
		175	cwd
		176	div [i3]
		177	stosb
		178	add esi,3
		179	loop @b
		180	jmp .blur_map
		181	; push ecx
		182	; mov eax,0x88888888
		183	; mov ecx,16/4
		184	; rep stosd
		185	; mov eax,0xffffffff
		186	; mov ecx,16/4
		187	; rep stosd
		188	; pop ecx
		189	; loop @b
		190	.random_bump_map:
		191
		192	mov ecx,TEXTURE_SIZE
		193	@@:
		194	push ecx
		195	xor ecx,ecx
		196	mov edx,255
		197	call random
		198	stosb
		199	pop ecx
		200	loop @b
		201
		202	.blur_map:
		203	pop edi
		204	movzx ecx,[bumps_deep_flag]
		205	inc cx
		206	.blur:
		207	xor esi,esi
		208	mov edx,TEXTURE_SIZE
		209	xor eax,eax
		210	xor ebx,ebx
		211	@@:
		212	mov ebp,esi
		213	dec ebp
		214	and ebp,TEXTURE_SIZE
		215	mov al,byte[ebp+edi]
		216
		217	mov ebp,esi
		218	inc ebp
		219	and ebp,TEXTURE_SIZE
		220	mov bl,byte[ebp+edi]
		221	add eax,ebx
		222
		223	mov ebp,esi
		224	sub ebp,TEX_X
		225	and ebp,TEXTURE_SIZE
		226	mov bl,byte[ebp+edi]
		227	add eax,ebx
		228
		229	mov ebp,esi
		230	add ebp,TEX_X
		231	and ebp,TEXTURE_SIZE
		232	mov bl,byte[ebp+edi]
		233	add eax,ebx
		234
		235	shr eax,2
		236	mov byte[esi+edi],al
		237
		238	inc esi
		239	dec edx
		240	jnz @b
		241
		242	loop .blur
		243	ret
		244	random:
		245	; in - ecx - min
		246	; edx - max
		247	; out - eax - random number
		248	mov bx,[rand_seed]
		249	add bx,0x9248
		250	ror bx,3
		251	mov [rand_seed],bx
		252
		253	mov ax,dx
		254	sub ax,cx
		255	mul bx
		256	mov ax,dx
		257	add ax,cx
		258	cwde
		259	ret
		260
		261	optimize_object1: ; setting point (0,0,0) in center of object
		262	; recalculate all coords , scale object,
		263	;the coords in <-1.0,1.0>
		264	;in : real_points - table filled of real float dd coordinates (x,y,z), end mark dd -1
		265	; _ global variable
		266	; points_count_var - dw integer variable with exactly points count
		267	; - global variable
		268	; SIZE_X, SIZE_Y must be defined
		269
		270	.max equ dword[ebp-4]
		271	.min equ dword[ebp-8]
		272	.maxxx equ dword[ebp-12]
		273	.center equ dword[ebp-16]
		274
		275	mov ebp,esp
		276	sub esp,16
		277	fninit
		278	mov .maxxx,0
		279	mov ecx,3
		280	xor ebx,ebx ; ebx - x,y,z coord in real_points list
		281	.next_c: ; max/min/center x,y,z
		282	mov edi,[points_ptr] ; in real_point list minimum two points
		283	mov dx,[points_count_var]
		284	fld dword[edi+ebx]
		285	fst .max
		286	fstp .min
		287	add edi,12
		288	dec dx
		289	.next_coord: ; next coord from real_points list
		290	fld dword [edi+ebx] ; real_points -> x,y,z
		291	fcom .max ; max_x,y,z
		292	fstsw ax
		293	sahf
		294	jbe @f ; jmp less equal
		295	fstp .max ; new max_x,y,z
		296	jmp .end_coords
		297	@@:
		298	fcom .min ; min_x,y,z
		299	fstsw ax
		300	sahf
		301	jnbe @f ; jmp greater
		302	fst .min ; new min_x
		303	@@:
		304	ffree st
		305	.end_coords:
		306	add edi,12
		307	; cmp dword[edi],-1 ; cmp with end mark
		308	dec dx
		309	jnz .next_coord
		310	; ok after this we found max_coord and min_coord
		311	fld .max ; find center point
		312	fadd .min
		313	fld1
		314	fld1
		315	faddp
		316	fdivp st1,st ; st0 - center coord
		317	fstp .center
		318
		319	fld .max
		320	fsub .center ; st = .max - .center
		321	fcom .maxxx ; maximum of all .max
		322	fstsw ax
		323	sahf
		324	jbe @f ; jmp lower
		325	fst .maxxx ; new maxx
		326	@@:
		327	ffree st
		328	mov edi,[points_ptr]
		329	mov dx,[points_count_var] ; substraction all coords - center point
		330	@@:
		331	fld dword[edi+ebx]
		332	fsub .center
		333	fstp dword[edi+ebx]
		334	add edi,12
		335	; cmp dword[edi],-1
		336	; jne @b
		337	dec dx
		338	jnz @b
		339
		340	add ebx,4 ; ebx - x,y,z cooficientes in list real_points
		341	dec ecx
		342	jnz .next_c
		343
		344	fld .maxxx
		345	mov edi,[points_ptr] ; create all coords in <-1.0,1.0>
		346	movzx ecx,[points_count_var]
		347	@@:
		348	fld dword[edi]
		349	fdiv .maxxx
		350	fstp dword[edi]
		351	fld dword[edi+4]
		352	fdiv .maxxx
		353	fstp dword[edi+4]
		354	fld dword[edi+8]
		355	fdiv .maxxx
		356	fstp dword[edi+8]
		357	add edi,12
		358	loop @b
		359	; cmp dword[edi],-1
		360
		361	; jne @b
		362
		363	mov esp,ebp
		364	ret
		365
		366	generate_object: ; generate node
		367	.N equ 32
		368	.x equ word[ebp-2]
		369	.Ndiv2 equ word[ebp-10]
		370	.MthickSqr equ dword[ebp-14] ; diameter^2
		371	.temp equ dword[ebp-18] ; variable for x <-1;1>
		372	.Hthick equ dword[ebp-22]
		373	.cos_temp equ dword[ebp-26]
		374	.next_const equ dword[ebp-30]
		375	.a equ dword[ebp-34]
		376	.Pi2 equ ebp-38
		377
		378
		379
		380	mov ebp,esp
		381	sub esp,42
		382
		383	mov .Ndiv2,.N/2
		384	fninit
		385	fldpi
		386	fadd st,st
		387	fst dword[.Pi2]
		388	fidiv .Ndiv2
		389	fst .a ; .Ndiv2*.a=2Pi => .a=2pi/.Ndiv2
		390
		391	fld [.Mthick] ; inside diameter, (outside daiameter = 1)
		392	fmul st,st0
		393	fstp .MthickSqr
		394	fld1
		395
		396	fsub [.Mthick]
		397
		398	fst .Hthick ; Hthick = 1 - Mthick
		399	fld st
		400	fadd st,st
		401	faddp
		402	fstp .next_const ; next_const = Hthick * 3
		403
		404
		405	;init triangles list
		406	mov edi,[triangles_ptr]
		407
		408	xor si,si
		409	xor ax,ax
		410	mov bx,.N+1
		411	mov cx,(.N*2)+2 ;--
		412	mov dx,(.N*3)+3 ;---
		413	mov [triangles_count_var],0
		414	.again_tri:
		415	stosw ; main wave
		416	mov word[edi],bx
		417	inc ax
		418	add edi,2
		419	stosw
		420	stosw
		421	mov word[edi],bx
		422	inc bx
		423	mov word[edi+2],bx
		424
		425
		426	add edi,4
		427
		428	mov word[edi],cx ;---- ; n2+2 ; xor ax,ax
		429	inc cx ; n2+3 ; mov bx,.N+1
		430	mov word[edi+2],dx ; ; mov cx,(.N*2)+2 ;--
		431	mov word[edi+4],cx ; n3+3 ; mov dx,(.N*3)+3 ;---
		432	mov word[edi+6],dx ; n3+3 ;
		433	inc dx ; ;
		434	mov word[edi+8],dx ; n2+3 ;
		435	mov word[edi+10],cx ; n3+4
		436	add edi,12 ;----
		437
		438	dec ax ; border of wave
		439	dec bx
		440	dec cx
		441	dec dx
		442
		443	stosw ; first border
		444	inc ax
		445	stosw
		446	mov word[edi],dx
		447	add edi,2
		448
		449	mov word[edi],dx
		450	add edi,2
		451	stosw
		452	inc dx
		453	mov word[edi],dx
		454
		455	mov word[edi+2],bx ; second border
		456	mov word[edi+4],cx
		457	inc bx
		458	mov word[edi+6],bx
		459
		460	mov word[edi+8],bx
		461	mov word[edi+10],cx
		462	inc cx
		463	mov word[edi+12],cx
		464	add edi,14
		465
		466	add [triangles_count_var],8 ;10
		467	inc si
		468	cmp si,.N
		469	jne .again_tri
		470
		471	add ax,((.N+1)*3)+1
		472	add bx,((.N+1)*3)+1
		473	add cx,((.N+1)*3)+1
		474	add dx,((.N+1)*3)+1
		475	xor si,si
		476	cmp ax,(.N13)+13 ;;;(.N23)+23 ; ax,(.N*13)+13
		477	jl .again_tri
		478
		479	mov dword[edi],-1 ; <--- end mark not always in use
		480
		481	; init real points list
		482	mov .x,-(.N/2)
		483	mov edi,[points_ptr]
		484	lea esi,[edi+(12*(.N+1))]
		485	mov eax,[points_ptr]
		486	mov ebx,eax
		487	add eax,212(.N+1) ;---
		488	add ebx,312(.N+1) ;---
		489	mov [points_count_var],0
		490
		491
		492	.R_P4 equ edi+(412(.N+1))
		493	.R_P5 equ edi+(512(.N+1))
		494	.R_P6 equ edi+(612(.N+1))
		495	.R_P7 equ edi+(712(.N+1))
		496
		497	.R_P8 equ edi+(812(.N+1))
		498	.R_P9 equ edi+(912(.N+1))
		499	.R_P10 equ edi+(1012(.N+1))
		500	.R_P11 equ edi+(1112(.N+1))
		501
		502	.R_P12 equ edi+(1212(.N+1))
		503	.R_P13 equ edi+(1312(.N+1))
		504	.R_P14 equ edi+(1412(.N+1))
		505	.R_P15 equ edi+(1512(.N+1))
		506
		507	@@:
		508	; x coordinate
		509	fild .x
		510	fld st
		511	;; fmul .a ; st = <-2pi;2pi> when mul .a
		512	fidiv .Ndiv2
		513	fst .temp ; temporary x in <-1.0;1.0>
		514
		515	fst dword[edi] ;x coordinate of point
		516	fst dword[esi]
		517	fst dword[eax] ;--
		518
		519
		520	fst dword[.R_P4]
		521	fst dword[.R_P5]
		522	fst dword[.R_P6]
		523	fst dword[.R_P7]
		524
		525	fst dword[.R_P8]
		526	fst dword[.R_P9]
		527	fst dword[.R_P10]
		528	fst dword[.R_P11]
		529
		530	fst dword[.R_P12]
		531	fst dword[.R_P13]
		532	fst dword[.R_P14]
		533	fst dword[.R_P15]
		534
		535	fstp dword[ebx] ;pop
		536	;*******y coord dword[offset + 4]
		537	fmul .a ; st = <-2pi;2pi>
		538	fsincos
		539	fmul .next_const
		540	fst dword[edi+4] ; y coordinate of point
		541	fst dword[esi+4]
		542	fst dword[.R_P4+4]
		543	fst dword[.R_P5+4]
		544	fld .Hthick
		545	faddp
		546	fst dword[.R_P6+4]
		547	fst dword[.R_P7+4]
		548	fst dword[eax+4]
		549	fst dword[ebx+4]
		550
		551	fchs
		552	fst dword[.R_P10+4]
		553	fst dword[.R_P11+4]
		554	fst dword[.R_P14+4]
		555	fst dword[.R_P15+4]
		556	fadd .Hthick
		557	fadd .Hthick
		558	fst dword[.R_P8+4]
		559	fst dword[.R_P9+4]
		560	fst dword[.R_P12+4]
		561	fstp dword[.R_P13+4]
		562
		563
		564	fmul .Hthick
		565	fmul .next_const
		566	fstp .cos_temp ; cos_temp = Hthick^2 * 3
		567
		568	;***************z coord
		569	fld .temp
		570	fld st
		571	fmul st,st0 ; z coords
		572	fchs
		573	fld1
		574	faddp
		575	fabs
		576	fsqrt
		577	; fld st
		578	; fsub
		579	fld st
		580	fsub .cos_temp
		581	fst dword[esi+8]
		582	fstp dword[eax+8] ;--
		583	fld st
		584	fadd .cos_temp
		585	fst dword[.R_P9+8]
		586	fstp dword[.R_P10+8]
		587	fchs
		588	fld st
		589	fsub .cos_temp
		590	fst dword[.R_P6+8]
		591	fstp dword[.R_P5+8]
		592	fadd .cos_temp
		593	fst dword[.R_P13+8]
		594	fstp dword[.R_P14+8]
		595
		596	fmul [.Mthick]
		597	fmul st,st0
		598	fchs
		599	fld .MthickSqr
		600	faddp
		601	fabs
		602	fsqrt
		603	fld st
		604	fsub .cos_temp
		605	fst dword[edi+8] ; z coordinate
		606	fstp dword[ebx+8] ;--
		607	fld st
		608	fadd .cos_temp
		609	fst dword[.R_P8+8]
		610	fstp dword[.R_P11+8]
		611	fchs
		612	fld st
		613	fsub .cos_temp
		614	fst dword[.R_P7+8]
		615	fstp dword[.R_P4+8]
		616	fadd .cos_temp
		617	fst dword[.R_P12+8]
		618	fstp dword[.R_P15+8]
		619
		620	add edi,12
		621	add esi,12
		622	add eax,12 ;--
		623	add ebx,12 ;---
		624	add [points_count_var],24 ;16
		625	inc .x
		626	cmp .x,.N/2
		627	jng @b
		628	; mov dword[esi],-1 ; <-- end mark
		629	mov [culling_flag],0
		630	mov esp,ebp
		631	ret
		632	.Mthick dd 0.85 ; size-thickness
		633
		634	make_random_lights:
		635	.temp1 equ ebp-4
		636	.temp2 equ ebp-8 ; - light vector generate variables
		637	.temp3 equ ebp-12
		638	.max equ 800
1931	yogev_ezra	639	RDTSC
		640	mov [rand_seed],ax
1245	hidnplayr	641	push ebp
		642	mov ebp,esp
		643	sub esp,12
		644	mov edi,lights
		645	fninit
		646	mov dword[.temp2],.max
		647	mov dword[.temp3],.max/2
		648
		649	.again:
		650	xor esi,esi
		651	@@:
		652	mov edx,.max
		653	xor ecx,ecx
		654	call random
		655	sub eax,.max/2
		656	mov dword[.temp1],eax
		657	fild dword[.temp1]
		658	fidiv dword[.temp3]
		659	fstp dword[edi+esi*4]
		660	inc esi
		661	cmp esi,2
		662	jne @b
		663
		664	.max1 equ 1000
		665	mov dword[.temp2],.max1/2
		666	mov edx,.max1
		667	xor ecx,ecx
		668	call random
		669	mov dword[.temp1],eax
		670	fild dword[.temp1]
		671	fchs
		672	fidiv dword[.temp2]
		673	fstp dword[edi+8]
		674
		675	xor esi,esi
		676	@@:
		677	mov ecx,220 ; max colors and shine , ecx = 200 - more bright shading
		678	mov edx,255
		679	call random
		680	mov byte[edi+18+esi],al
		681	inc esi
		682	cmp esi,4
		683	jne @b
		684
		685
		686	xor esi,esi
		687	@@:
		688	mov ecx,100 ; orginal colors
		689	movzx edx,byte[edi+18+esi]
		690	call random
		691	mov byte[edi+12+esi],al
		692	inc esi
		693	cmp esi,3
		694	jne @b
		695
		696	xor esi,esi
		697	@@:
		698	mov ecx,1 ; min cols
		699	movzx edx,byte[edi+12+esi]
		700	call random
		701	mov byte[edi+15+esi],al
		702	inc esi
		703	cmp esi,3
		704	jne @b
		705
		706	add edi,LIGHT_SIZE ;22
		707	cmp edi,lightsend ; see file View3ds,asm
		708	jne .again
		709
		710	mov esp,ebp
		711	pop ebp
		712	ret
		713
		714	generate_texture2:
		715	.const equ 32
		716	mov edi,texmap
		717	xor bx,bx
		718	.next_line:
		719	xor dx,dx
		720	.next2stripes:
		721	mov eax,-1
		722	mov ecx,(TEX_X/.const)*3/4
		723	rep stosd
		724	mov eax,0x00ff0000
		725	mov ecx,(TEX_X/.const)
		726	@@:
		727	stosd
		728	dec edi
		729	loop @b
		730	inc dx
		731	cmp dx,.const/2
		732	jl .next2stripes
		733	inc bx
		734	cmp bx,TEX_Y
		735	jl .next_line
		736	ret
		737
		738	blur_screen: ;blur n times ; blur or fire
		739	;in - ecx times count
		740	;.counter equ dword[esp-4]
		741	.counter1 equ dword[esp-8]
		742	if Ext>=MMX
		743	emms
		744	push ebp
		745	mov ebp,esp
		746	push dword 0x0
		747	push dword 0x01010101
		748	.again_blur:
		749	push ecx
		750	mov edi,screen
		751	mov ecx,SIZE_X*3/4
		752	pxor mm5,mm5
		753	xor eax,eax
		754	rep stosd
		755
		756	mov ecx,(SIZE_X(SIZE_Y-3))3/4
		757	.blr:
		758	@@:
		759
		760	movd mm0,[edi+SIZE_X*3]
		761	movd mm1,[edi-SIZE_X*3]
		762	movd mm2,[edi-3]
		763	movd mm3,[edi+3]
		764
		765	punpcklbw mm0,mm5
		766	punpcklbw mm1,mm5
		767	punpcklbw mm2,mm5
		768	punpcklbw mm3,mm5
		769	paddw mm0,mm1
		770	paddw mm0,mm2
		771	paddw mm0,mm3
		772	psrlw mm0,2
		773
		774	packuswb mm0,mm5
		775	psubusb mm0,qword[esp] ; importand if fire
		776	movd eax,mm0
		777	stosd
		778
		779	loop .blr
		780
		781	xor eax,eax
		782	mov ecx,SIZE_X*3/4
		783	rep stosd
		784	pop ecx
		785	loop .again_blur
		786	mov esp,ebp
		787	pop ebp
		788	end if
		789	if Ext=NON
		790	.blur:
		791	push ecx
		792	xor ecx,ecx
		793	.next_col_coof:
		794	xor esi,esi
		795	xor eax,eax
		796	xor ebx,ebx
		797	mov edi,SIZE_X*SIZE_Y
		798	.next:
		799	mov ebp,esi
		800	dec ebp
		801
		802	cmp ebp,SIZE_X*SIZE_Y-1 ; clipping
		803	jl @f
		804	mov ebp,SIZE_X*SIZE_Y-1
		805	@@:
		806	or ebp,ebp
		807	jg @f
		808	xor ebp,ebp
		809	@@:
		810	lea edx,[ebp*3+screen]
		811	mov al,byte[edx+ecx]
		812
		813	mov ebp,esi
		814	inc ebp
		815	cmp ebp,SIZE_X*SIZE_Y-1 ; clipping
		816	jl @f
		817	mov ebp,SIZE_X*SIZE_Y-1
		818	@@:
		819	or ebp,ebp
		820	jg @f
		821	xor ebp,ebp
		822	@@:
		823	lea edx,[ebp*3+screen]
		824	mov bl,byte[edx+ecx]
		825	add eax,ebx
		826
		827	mov ebp,esi
		828	sub ebp,SIZE_X
		829	cmp ebp,SIZE_X*SIZE_Y-1 ; clipping
		830	jl @f
		831	mov ebp,SIZE_X*SIZE_Y-1
		832	@@:
		833	or ebp,ebp
		834	jg @f
		835	xor ebp,ebp
		836	@@:
		837	lea edx,[ebp*3+screen]
		838	mov bl,byte[edx+ecx]
		839	add eax,ebx
		840
		841	mov ebp,esi
		842	add ebp,SIZE_X
		843	cmp ebp,SIZE_X*SIZE_Y-1 ; clipping
		844	jl @f
		845	mov ebp,SIZE_X*SIZE_Y-1
		846	@@:
		847	or ebp,ebp
		848	jg @f
		849	xor ebp,ebp
		850	@@:
		851	lea edx,[ebp*3+screen]
		852	mov bl,byte[edx+ecx]
		853	add eax,ebx
		854
		855	shr eax,2
		856	lea edx,[esi*3+screen]
		857	or al,al
		858	jz @f
		859	dec al ; not importand if fire
		860	mov byte[edx+ecx],al
		861	@@:
		862
		863	inc esi
		864	dec edi
		865	jnz .next
		866
		867	inc ecx
		868	cmp ecx,3
		869	jne .next_col_coof
		870	pop ecx
		871	dec ecx
		872	jnz .blur
		873	end if
		874	ret
		875
		876	mirror: ; mirror effect - loseless operation
		877	; in ah - button id = 11, 12, 13
		878	mov edi,[points_ptr] ; one real point - triple float
		879	mov esi,[points_normals_ptr] ; one 3dvector - triple float dword x,y,z
		880	fninit
		881	movzx ecx,[points_count_var]
		882
		883	cmp ah,11
		884	je @f
		885	cmp ah,12
		886	je .yn
		887	cmp ah,13
		888	je .zn
		889
		890	@@: ; neg x
		891	fld dword[edi] ;x
		892	fchs
		893	fstp dword[edi] ;x
		894	fld dword[esi]
		895	fchs
		896	fstp dword[esi]
		897	add edi,12
		898	add esi,12
		899	loop @b
		900	ret
		901	.yn:
		902	fld dword[edi+4] ;y
		903	fchs
		904	fstp dword[edi+4] ;y
		905	fld dword[esi+4]
		906	fchs
		907	fstp dword[esi+4]
		908
		909	add edi,12
		910	add esi,12
		911	loop .yn
		912	ret
		913	.zn:
		914	fld dword[edi+8] ;z
		915	fchs
		916	fstp dword[edi+8] ;z
		917	fld dword[esi+8]
		918	fchs
		919	fstp dword[esi+8]
		920
		921	add edi,12
		922	add esi,12
		923	loop .zn
		924	ret
		925
		926	exchange: ; exchange some coords - loseless operation
		927	mov edi,[points_ptr] ; one real point - triple float
		928	mov esi,[points_normals_ptr] ; one 3dvector - triple float dword x,y,z
		929	fninit ; exchange both points and normal vactors coords/coofics
		930	movzx ecx,[points_count_var]
		931
		932	cmp [xchg_flag],1
		933	je @f
		934	cmp [xchg_flag],2
		935	je .zx
		936	cmp [xchg_flag],3
		937	je .yz
		938	@@:
		939	fld dword[edi] ;x
		940	fld dword[edi+4] ;y
		941	fstp dword[edi] ;x
		942	fstp dword[edi+4] ;y
		943	fld dword[esi] ;x
		944	fld dword[esi+4] ;y
		945	fstp dword[esi] ;x
		946	fstp dword[esi+4] ;y
		947
		948	add esi,12
		949	add edi,12
		950	loop @b
		951	ret
		952	.zx:
		953	fld dword[edi] ;x
		954	fld dword[edi+8] ;z
		955	fstp dword[edi] ;x
		956	fstp dword[edi+8] ;z
		957	fld dword[esi] ;x
		958	fld dword[esi+8] ;y
		959	fstp dword[esi] ;x
		960	fstp dword[esi+8] ;y
		961
		962	add esi,12
		963	add edi,12
		964	loop .zx
		965	ret
		966	.yz:
		967	fld dword[edi+8] ;z
		968	fld dword[edi+4] ;y
		969	fstp dword[edi+8] ;z
		970	fstp dword[edi+4] ;y
		971	fld dword[esi+8] ;x
		972	fld dword[esi+4] ;y
		973	fstp dword[esi+8] ;x
		974	fstp dword[esi+4] ;y
		975
		976	add edi,12
		977	add esi,12
		978	loop .yz
		979	ret
		980
		981	;#\\\\\\\\\\\\\\\\\\\\\\\\\comented///////////////////////////////
		982	if 0
		983	calc_attenuation_light: ;; calculate point to spot_light distance
		984	; spot light with attenuation ;; and vector, normalize vector,
		985	;; calc dot_pr and unlinear color according
		986	;; to dot_product, write to color buff
		987	.distance equ dword[ebp-4] ;; color buff in bumpmap for save the mem
		988	.temp_col equ word[ebp-6]
		989	.vector equ [ebp-20]
		990	.spot_light_ptr equ dword [ebp-24]
		991	mov ebp,esp
		992	sub esp,24
		993	mov edi,rotated_points_r ;points_rotated
		994	mov edx,point_normals_rotated
		995	mov ecx,bumpmap ; mem area with temp points color list
		996	xor ax,ax ; counter
		997	mov esi,spot_light_params
		998	mov .spot_light_ptr,esi
		999	.again_color:
		1000	push eax
		1001	lea ebx,.vector
		1002	mov esi,.spot_light_ptr ; calc vector fom light to every point
		1003	call make_vector_r
		1004	; ebx - ptr to result vector
		1005	fld dword [ebx]
		1006	fmul st, st
		1007	fld dword [ebx+4]
		1008	fmul st, st
		1009	fld dword [ebx+8]
		1010	fmul st, st
		1011	faddp st1, st
		1012	faddp st1, st
		1013	fsqrt
		1014	fstp .distance
		1015	push edi
		1016	mov edi,ebx
		1017	call normalize_vector
		1018	; edi - normalized distance vector
		1019	mov esi,edx
		1020	call dot_product ; esi first vector, edi second vector
		1021	; st0 - dot product
		1022	fabs ; why not ? - think about it
		1023	pop edi
		1024	fldz
		1025	fcomip st1
		1026	jbe @f ; st1>0
		1027	mov dword[ecx],0
		1028	mov word[ecx+4],0
		1029	add ecx,6
		1030	ffree st0
		1031	jmp .update_counters
		1032	@@:
		1033	; pop edi
		1034
		1035	; calc color(with atenuation), write to buff
		1036	; buff - color of points list
		1037	; color = ambient+cos(x)diffuse+(cos(x)^n)specular
		1038
		1039	push edx
		1040	push edi
		1041
		1042	push ecx
		1043	push ebp
		1044
		1045	; mov eax,spot_light_params
		1046	mov eax,.spot_light_ptr
		1047	movzx dx,byte[eax+15]
		1048	push dx ; shines
		1049	movzx dx,byte[eax+8] ; b
		1050	push dx ; orginal col
		1051	movzx dx,byte[eax+7] ; g
		1052	push dx
		1053	movzx dx,byte[eax+6] ; r
		1054	push dx
		1055	movzx dx,byte[eax+14] ; max col
		1056	push dx
		1057	movzx dx,byte[eax+13]
		1058	push dx
		1059	movzx dx,byte[eax+12]
		1060	push dx
		1061	movzx dx,byte[eax+11] ; min col
		1062	push dx
		1063	movzx dx,byte[eax+10]
		1064	push dx
		1065	movzx dx,byte[eax+9]
		1066	push dx
		1067	push eax ; dot pr. (in st0)
		1068	call calc_one_col
		1069	; eax - 0x00rrggbb
		1070	; brightness = 1 - (distance/light.fadezero)^fogness
		1071	; if brightness < 0, then brightness = 0
		1072	; attenuetion equation taken from 3dica tutorial - 1/d^2 isn't perfect
		1073	; color = color * brightness ; fogness = <0.5,2.0>
		1074	pop ebp
		1075	pop ecx
		1076
		1077	fld .distance
		1078	mov esi,.spot_light_ptr
		1079	; fidiv word[spot_light_params+16] ; fadezero
		1080	fidiv word[esi+16] ; fadezero
		1081	; fmul st,st0 ; fogness = 2
		1082	fabs ; to be sure
		1083	fchs
		1084	fld1
		1085	faddp
		1086	fld1
		1087	fcomip st1
		1088	jnbe @f
		1089	ffree st0
		1090	fld1
		1091	@@:
		1092	fld st ; st - brightness
		1093	ror eax,16
		1094	movzx bx,al ; al - r
		1095	mov .temp_col,bx
		1096	fimul .temp_col
		1097	fistp word[ecx]
		1098	cmp word[ecx],0
		1099	jge @f
		1100	mov word[ecx],0
		1101	@@:
		1102	; mov edx,dword[spot_light_params+12] ; max colors
		1103	mov edx,dword[esi+12] ; max colors
		1104	movzx bx,dl ; r max
		1105	cmp word[ecx],bx ; choose the brightest for r, g, b
		1106	jl @f
		1107	mov word[ecx],bx
		1108	@@:
		1109
		1110	add ecx,2
		1111	fld st
		1112	ror eax,16
		1113	movzx bx,ah ; g
		1114	mov .temp_col,bx
		1115	fimul .temp_col
		1116	fistp word[ecx]
		1117	cmp word[ecx],0
		1118	jg @f
		1119	mov word[ecx],0
		1120	@@:
		1121	movzx bx,dh ; g max
		1122	cmp word[ecx],bx
		1123	jle @f
		1124	mov word[ecx],bx
		1125	@@:
		1126
		1127	add ecx,2
		1128	movzx bx,al ; b
		1129	mov .temp_col,bx
		1130	fimul .temp_col
		1131	fistp word[ecx]
		1132	cmp word[ecx],0
		1133	jg @f
		1134	mov word[ecx],0
		1135	@@:
		1136	shr edx,16
		1137	movzx bx,dl ; b max
		1138	cmp word[ecx],bx
		1139	jle @f
		1140	mov word[ecx],bx
		1141	@@:
		1142	add ecx,2
		1143	;end if
		1144	; ror eax,16
		1145	; movzx bx,al
		1146	; mov word[ecx],bx
		1147	; ror eax,16
		1148	; movzx bx,ah
		1149	; mov word[ecx+2],bx
		1150	; xor ah,ah
		1151	; mov word[ecx+4],ax
		1152	; add ecx,6
		1153
		1154	pop edi
		1155	pop edx
		1156
		1157	.update_counters:
		1158	add edx,12 ; normal_size
		1159	add edi,12 ;6 ; 3d point_coord_size
		1160
		1161	pop eax
		1162	inc ax
		1163	cmp ax,[points_count_var]
		1164	jne .again_color
		1165
		1166	add .spot_light_ptr,18
		1167	cmp .spot_light_ptr,spot_l_end
		1168	jl .again_color
		1169
		1170	mov esp,ebp
		1171	ret
		1172	end if
		1173	;#\\\\\\\\\\\\\\\\\\\\\\\\\comented////////////////////////////////////

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(root)/programs/demos/3DS/B_PROCS.INC – Rev 1931