WebSVN – Kolibri OS – Diff – /programs/demos/view3ds/3stencil.inc


ROUND2 equ 10
 
stencil_tri:
;  procedure calculate triangle in stencil buffer
;  ----------------in - eax - x1 shl 16 + y1 ----------------------
;  -------------------- ebx - x2 shl 16 + y2 ----------------------
;  -------------------- ecx - x3 shl 16 + y3 ----------------------
;  -------------------- esi - pointer to s-buffer -----------------
;  -------------------- xmm0 - lo -> hi z1, z2, z3 as dword float
 
.x1     equ [ebp-2]
.y1     equ [ebp-4]
.x2     equ [ebp-6]
.y2     equ [ebp-8]
.x3     equ [ebp-10]
.y3     equ [ebp-12]
 
.dx12   equ dword[ebp-20]
.dx13   equ dword[ebp-24]
.dx23   equ dword[ebp-28]
.dz12   equ dword[ebp-32]
.dz13   equ dword[ebp-36]
.dz23   equ dword[ebp-40]
.zz2    equ [ebp-44]
.zz1    equ [ebp-48]
.z3     equ [ebp-56]
.z2     equ [ebp-60]
.z1     equ [ebp-64]
.s_buff equ [ebp-68]
 
       push    ebp
       mov     ebp,esp
       sub     esp,128
       and     ebp,0xfffffff0
      .sort2:
        cmp     ax,bx
        jle     .sort1
        xchg    eax,ebx
        shufps  xmm0,xmm0,11100001b
      .sort1:
        cmp     bx,cx
        jle     .sort3
        xchg    ebx,ecx
        shufps  xmm0,xmm0,11011000b
        jmp     .sort2
      .sort3:
        mov     .y1,eax            ; store triangle coordinates in user friendly variables
        mov     .y2,ebx
        mov     .y3,ecx
 
    ;   mov     edx,100.11
    ;   movd    xmm0,edx
    ;   shufps  xmm0,xmm0,11100000b
 
        movaps  .z1,xmm0
    ;    mov     dword .z1,edx
    ;    mov     .z2,edx
    ;    mov     .z3,edx
        mov     .s_buff,esi
 
         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      .loop2_end
 
        mov     bx,.y2       ; calc delta 12
        sub     bx,.y1
        jnz     .dx12_make
        mov     .dx12,0
        mov     .dz12,0
        jmp     .dx12_done
   .dx12_make:
        mov     ax,.x2
        sub     ax,.x1
        cwde
        movsx   ebx,bx
        shl     eax,ROUND2
        cdq
        idiv    ebx
        mov     .dx12,eax
 
        movss    xmm1,.z2
        cvtsi2ss xmm2,ebx
        subss    xmm1,.z1
        divss    xmm1,xmm2
        movss    .dz12,xmm1
     ;  mov      .dz12, dword 0.11
 
  .dx12_done:
        mov     bx,.y3       ; calc delta 13
        sub     bx,.y1
        jnz     .dx13_make
        mov     .dx13,0
        mov     .dz13,0
        jmp     .dx13_done
   .dx13_make:
        mov     ax,.x3
        sub     ax,.x1
        cwde
        movsx   ebx,bx
        shl     eax,ROUND2
        cdq
        idiv    ebx
        mov     .dx13,eax
 
        movss    xmm1,.z3
        cvtsi2ss xmm2,ebx
        subss    xmm1,.z1
        divss    xmm1,xmm2
        movss    .dz13,xmm1
    ;    mov  .dz13, dword 0.11
 
    .dx13_done:
        mov     bx,.y3       ; calc delta 23
        sub     bx,.y2
        jnz     .dx23_make
        mov     .dx23,0
        mov     .dz23,0
        jmp     .dx23_done
   .dx23_make:
        mov     ax,.x3
        sub     ax,.x2
        cwde
        movsx   ebx,bx
        shl     eax,ROUND2
        cdq
        idiv    ebx
        mov     .dx23,eax
 
        movss    xmm1,.z3
        cvtsi2ss xmm2,ebx
        subss    xmm1,.z2
        divss    xmm1,xmm2
        movss    .dz23,xmm1
 
    .dx23_done:
        mov     edx,.z1
 
        mov     .zz1,edx
        mov     .zz2,edx
        movsx   eax,word .x1
        shl     eax,ROUND2    ; eax - cur x1
        mov     ebx,eax       ; ebx - cur x2
 
        mov     cx,.y1
        cmp     cx,.y2
        jge     .loop1_end
     .loop1:
 
        pushad
        sar     ebx,ROUND2
        sar     eax,ROUND2
     ;   movq    xmm0,.zz1
        movlps  xmm0,.zz1
   ;     mov     edx,0.11
   ;     movd    xmm0,edx
   ;     shufps  xmm0,xmm0,11100000b
        mov     esi,.s_buff
 
        call    stencil_line
 
        popad
        add     eax,.dx13
        add     ebx,.dx12
 
        movss   xmm1,.zz1
        movss   xmm2,.zz2
        addss   xmm1,.dz13
        addss   xmm2,.dz12
        movss   .zz1,xmm1
        movss   .zz2,xmm2
 
        add     cx,1
        cmp     cx,.y2
        jl      .loop1
 
    .loop1_end:
 
        mov     edx,.z2
        mov     .zz2,edx
        movsx   ebx,word .x2
        shl     ebx,ROUND2
 
        mov     cx,.y2
        cmp     cx,.y3
        jge     .loop2_end
     .loop2:
        pushad
 
        sar     ebx,ROUND2
        sar     eax,ROUND2
        movlps  xmm0,.zz1
        mov     esi,.s_buff
 
 
        call    stencil_line
 
        popad
 
        add     eax,.dx13
        add     ebx,.dx23
 
        movss   xmm1,.zz1
        movss   xmm2,.zz2
        addss   xmm1,.dz13
        addss   xmm2,.dz23
        movss   .zz1,xmm1
        movss   .zz2,xmm2
 
 
        add     cx,1
        cmp     cx,.y3
        jl      .loop2
     .loop2_end:
 
        add  esp,128
        pop  ebp
 
ret
 
stencil_line:
;----------------------------------------------------
;-------------in xmm0 - lo -> hi z1, z2
;--------------- eax - x1 ---------------------------
;--------------- ebx - x2 ---------------------------
;--------------- ecx - y-----------------------------
;--------------- esi - pointer to s-buffer
 
 
.dz equ  [ebp-4]
.z2 equ  [ebp-8]
.z1 equ  [ebp-12]
.x2 equ  [ebp-16]
.x1 equ  [ebp-20]
.s_buf  equ [ebp-24]
;     cmp        eax,ebx
;     je  @f
;     int3
;   @@:
     push       ebp
     mov        ebp,esp
     sub        esp,64
  ;   cmp        eax,0
  ;   jg         @f
  ;
  ; @@:
     or         cx,cx
     jle        .l_quit
 
     cmp        cx,[size_y_var]
     jge        .l_quit
 
     movzx      ecx,cx
     mov        .s_buf,esi
     cmp        eax,ebx
     je         .l_quit
     jl         .l_ok
 
     xchg       eax,ebx
     shufps     xmm0,xmm0,11100001b
   .l_ok:
 
     cmp        ax,[size_x_var]
     jge        .l_quit
     cmp        bx,0
     jle        .l_quit
 
     movlps     .z1,xmm0
     mov        .x1,eax
     mov        .x2,ebx
 
     sub        ebx,eax
     movss      xmm0,.z2
     cvtsi2ss   xmm1,ebx
     subss      xmm0,.z1
     divss      xmm0,xmm1
     movss      .dz,xmm0
 
     movzx      edx,word[size_x_var]
     cmp        eax,1
     jge        @f
     mov        eax,.x1
     neg        eax
     cvtsi2ss   xmm2,eax
     mulss      xmm2,.dz
     addss      xmm2,.z1
     movss      .z1,xmm2
     mov        dword .x1,0
     movzx      edx,word[size_x_var]
     sub        edx,1
   @@:
     cmp        .x2,edx
     jl         @f
     mov        .x2,edx
 
    @@:
 ;   mov         eax,.x1
 ;   cmp         .x2,eax
 ;   je          .l_quit
     movzx      edx,word[size_x_var]
     mov        esi,.s_buf
     mov        eax,ecx  ; y
     mul        edx
     add        eax,.x1
 
     shl        eax,2
     add        esi,eax
 
     mov        ecx,.x2
     sub        ecx,.x1
     movss      xmm2,.z1   ; cz
   .ccalc:
   ;  movss     xmm1,xmm2
     comiss   xmm2,dword[esi]
 
 
     jg        @f
     movss     dword[esi],xmm2
    @@:
     add       esi,4
     addss     xmm2,.dz
     sub       ecx,1
     jnz       .ccalc
  .l_quit:
     mov       esp,ebp
     pop       ebp
ret

Rev 8232	Rev 8666
1	ROUND2 equ 10	1	ROUND2 equ 10
2		2
3	stencil_tri:	3	stencil_tri:
4	; procedure calculate triangle in stencil buffer	4	; procedure calculate triangle in stencil buffer
5	; ----------------in - eax - x1 shl 16 + y1 ----------------------	5	; ----------------in - eax - x1 shl 16 + y1 ----------------------
6	; -------------------- ebx - x2 shl 16 + y2 ----------------------	6	; -------------------- ebx - x2 shl 16 + y2 ----------------------
7	; -------------------- ecx - x3 shl 16 + y3 ----------------------	7	; -------------------- ecx - x3 shl 16 + y3 ----------------------
8	; -------------------- esi - pointer to s-buffer -----------------	8	; -------------------- esi - pointer to s-buffer -----------------
9	; -------------------- xmm0 - lo -> hi z1, z2, z3 as dword float	9	; -------------------- xmm0 - lo -> hi z1, z2, z3 as dword float
10		10
11	.x1 equ [ebp-2]	11	.x1 equ [ebp-2]
12	.y1 equ [ebp-4]	12	.y1 equ [ebp-4]
13	.x2 equ [ebp-6]	13	.x2 equ [ebp-6]
14	.y2 equ [ebp-8]	14	.y2 equ [ebp-8]
15	.x3 equ [ebp-10]	15	.x3 equ [ebp-10]
16	.y3 equ [ebp-12]	16	.y3 equ [ebp-12]
17		17
18	.dx12 equ dword[ebp-20]	18	.dx12 equ dword[ebp-20]
19	.dx13 equ dword[ebp-24]	19	.dx13 equ dword[ebp-24]
20	.dx23 equ dword[ebp-28]	20	.dx23 equ dword[ebp-28]
21	.dz12 equ dword[ebp-32]	21	.dz12 equ dword[ebp-32]
22	.dz13 equ dword[ebp-36]	22	.dz13 equ dword[ebp-36]
23	.dz23 equ dword[ebp-40]	23	.dz23 equ dword[ebp-40]
24	.zz2 equ [ebp-44]	24	.zz2 equ [ebp-44]
25	.zz1 equ [ebp-48]	25	.zz1 equ [ebp-48]
26	.z3 equ [ebp-56]	26	.z3 equ [ebp-56]
27	.z2 equ [ebp-60]	27	.z2 equ [ebp-60]
28	.z1 equ [ebp-64]	28	.z1 equ [ebp-64]
29	.s_buff equ [ebp-68]	29	.s_buff equ [ebp-68]
30		30
31	push ebp	31	push ebp
32	mov ebp,esp	32	mov ebp,esp
33	sub esp,128	33	sub esp,128
34	and ebp,0xfffffff0	34	and ebp,0xfffffff0
35	.sort2:	35	.sort2:
36	cmp ax,bx	36	cmp ax,bx
37	jle .sort1	37	jle .sort1
38	xchg eax,ebx	38	xchg eax,ebx
39	shufps xmm0,xmm0,11100001b	39	shufps xmm0,xmm0,11100001b
40	.sort1:	40	.sort1:
41	cmp bx,cx	41	cmp bx,cx
42	jle .sort3	42	jle .sort3
43	xchg ebx,ecx	43	xchg ebx,ecx
44	shufps xmm0,xmm0,11011000b	44	shufps xmm0,xmm0,11011000b
45	jmp .sort2	45	jmp .sort2
46	.sort3:	46	.sort3:
47	mov .y1,eax ; store triangle coordinates in user friendly variables	47	mov .y1,eax ; store triangle coordinates in user friendly variables
48	mov .y2,ebx	48	mov .y2,ebx
49	mov .y3,ecx	49	mov .y3,ecx
50		50
51	; mov edx,100.11	51	; mov edx,100.11
52	; movd xmm0,edx	52	; movd xmm0,edx
53	; shufps xmm0,xmm0,11100000b	53	; shufps xmm0,xmm0,11100000b
54		54
55	movaps .z1,xmm0	55	movaps .z1,xmm0
56	; mov dword .z1,edx	56	; mov dword .z1,edx
57	; mov .z2,edx	57	; mov .z2,edx
58	; mov .z3,edx	58	; mov .z3,edx
59	mov .s_buff,esi	59	mov .s_buff,esi
60		60
61	mov edx,80008000h ; eax,ebx,ecx are ANDd together into edx which means that	61	mov edx,80008000h ; eax,ebx,ecx are ANDd together into edx which means that
62	and edx,ebx ; if all of them are negative a sign flag is raised	62	and edx,ebx ; if all of them are negative a sign flag is raised
63	and edx,ecx	63	and edx,ecx
64	and edx,eax	64	and edx,eax
65	test edx,80008000h ; Check both X&Y at once	65	test edx,80008000h ; Check both X&Y at once
66	jne .loop2_end	66	jne .loop2_end
67		67
68	mov bx,.y2 ; calc delta 12	68	mov bx,.y2 ; calc delta 12
69	sub bx,.y1	69	sub bx,.y1
70	jnz .dx12_make	70	jnz .dx12_make
71	mov .dx12,0	71	mov .dx12,0
72	mov .dz12,0	72	mov .dz12,0
73	jmp .dx12_done	73	jmp .dx12_done
74	.dx12_make:	74	.dx12_make:
75	mov ax,.x2	75	mov ax,.x2
76	sub ax,.x1	76	sub ax,.x1
77	cwde	77	cwde
78	movsx ebx,bx	78	movsx ebx,bx
79	shl eax,ROUND2	79	shl eax,ROUND2
80	cdq	80	cdq
81	idiv ebx	81	idiv ebx
82	mov .dx12,eax	82	mov .dx12,eax
83		83
84	movss xmm1,.z2	84	movss xmm1,.z2
85	cvtsi2ss xmm2,ebx	85	cvtsi2ss xmm2,ebx
86	subss xmm1,.z1	86	subss xmm1,.z1
87	divss xmm1,xmm2	87	divss xmm1,xmm2
88	movss .dz12,xmm1	88	movss .dz12,xmm1
89	; mov .dz12, dword 0.11	89	; mov .dz12, dword 0.11
90		90
91	.dx12_done:	91	.dx12_done:
92	mov bx,.y3 ; calc delta 13	92	mov bx,.y3 ; calc delta 13
93	sub bx,.y1	93	sub bx,.y1
94	jnz .dx13_make	94	jnz .dx13_make
95	mov .dx13,0	95	mov .dx13,0
96	mov .dz13,0	96	mov .dz13,0
97	jmp .dx13_done	97	jmp .dx13_done
98	.dx13_make:	98	.dx13_make:
99	mov ax,.x3	99	mov ax,.x3
100	sub ax,.x1	100	sub ax,.x1
101	cwde	101	cwde
102	movsx ebx,bx	102	movsx ebx,bx
103	shl eax,ROUND2	103	shl eax,ROUND2
104	cdq	104	cdq
105	idiv ebx	105	idiv ebx
106	mov .dx13,eax	106	mov .dx13,eax
107		107
108	movss xmm1,.z3	108	movss xmm1,.z3
109	cvtsi2ss xmm2,ebx	109	cvtsi2ss xmm2,ebx
110	subss xmm1,.z1	110	subss xmm1,.z1
111	divss xmm1,xmm2	111	divss xmm1,xmm2
112	movss .dz13,xmm1	112	movss .dz13,xmm1
113	; mov .dz13, dword 0.11	113	; mov .dz13, dword 0.11
114		114
115	.dx13_done:	115	.dx13_done:
116	mov bx,.y3 ; calc delta 23	116	mov bx,.y3 ; calc delta 23
117	sub bx,.y2	117	sub bx,.y2
118	jnz .dx23_make	118	jnz .dx23_make
119	mov .dx23,0	119	mov .dx23,0
120	mov .dz23,0	120	mov .dz23,0
121	jmp .dx23_done	121	jmp .dx23_done
122	.dx23_make:	122	.dx23_make:
123	mov ax,.x3	123	mov ax,.x3
124	sub ax,.x2	124	sub ax,.x2
125	cwde	125	cwde
126	movsx ebx,bx	126	movsx ebx,bx
127	shl eax,ROUND2	127	shl eax,ROUND2
128	cdq	128	cdq
129	idiv ebx	129	idiv ebx
130	mov .dx23,eax	130	mov .dx23,eax
131		131
132	movss xmm1,.z3	132	movss xmm1,.z3
133	cvtsi2ss xmm2,ebx	133	cvtsi2ss xmm2,ebx
134	subss xmm1,.z2	134	subss xmm1,.z2
135	divss xmm1,xmm2	135	divss xmm1,xmm2
136	movss .dz23,xmm1	136	movss .dz23,xmm1
137		137
138	.dx23_done:	138	.dx23_done:
139	mov edx,.z1	139	mov edx,.z1
140		140
141	mov .zz1,edx	141	mov .zz1,edx
142	mov .zz2,edx	142	mov .zz2,edx
143	movsx eax,word .x1	143	movsx eax,word .x1
144	shl eax,ROUND2 ; eax - cur x1	144	shl eax,ROUND2 ; eax - cur x1
145	mov ebx,eax ; ebx - cur x2	145	mov ebx,eax ; ebx - cur x2
146		146
147	mov cx,.y1	147	mov cx,.y1
148	cmp cx,.y2	148	cmp cx,.y2
149	jge .loop1_end	149	jge .loop1_end
150	.loop1:	150	.loop1:
151		151
152	pushad	152	pushad
153	sar ebx,ROUND2	153	sar ebx,ROUND2
154	sar eax,ROUND2	154	sar eax,ROUND2
155	; movq xmm0,.zz1	155	; movq xmm0,.zz1
156	movlps xmm0,.zz1	156	movlps xmm0,.zz1
157	; mov edx,0.11	157	; mov edx,0.11
158	; movd xmm0,edx	158	; movd xmm0,edx
159	; shufps xmm0,xmm0,11100000b	159	; shufps xmm0,xmm0,11100000b
160	mov esi,.s_buff	160	mov esi,.s_buff
161		161
162	call stencil_line	162	call stencil_line
163		163
164	popad	164	popad
165	add eax,.dx13	165	add eax,.dx13
166	add ebx,.dx12	166	add ebx,.dx12
167		167
168	movss xmm1,.zz1	168	movss xmm1,.zz1
169	movss xmm2,.zz2	169	movss xmm2,.zz2
170	addss xmm1,.dz13	170	addss xmm1,.dz13
171	addss xmm2,.dz12	171	addss xmm2,.dz12
172	movss .zz1,xmm1	172	movss .zz1,xmm1
173	movss .zz2,xmm2	173	movss .zz2,xmm2
174		174
175	add cx,1	175	add cx,1
176	cmp cx,.y2	176	cmp cx,.y2
177	jl .loop1	177	jl .loop1
178		178
179	.loop1_end:	179	.loop1_end:
180		180
181	mov edx,.z2	181	mov edx,.z2
182	mov .zz2,edx	182	mov .zz2,edx
183	movsx ebx,word .x2	183	movsx ebx,word .x2
184	shl ebx,ROUND2	184	shl ebx,ROUND2
185		185
186	mov cx,.y2	186	mov cx,.y2
187	cmp cx,.y3	187	cmp cx,.y3
188	jge .loop2_end	188	jge .loop2_end
189	.loop2:	189	.loop2:
190	pushad	190	pushad
191		191
192	sar ebx,ROUND2	192	sar ebx,ROUND2
193	sar eax,ROUND2	193	sar eax,ROUND2
194	movlps xmm0,.zz1	194	movlps xmm0,.zz1
195	mov esi,.s_buff	195	mov esi,.s_buff
196		196
197		197
198	call stencil_line	198	call stencil_line
199		199
200	popad	200	popad
201		201
202	add eax,.dx13	202	add eax,.dx13
203	add ebx,.dx23	203	add ebx,.dx23
204		204
205	movss xmm1,.zz1	205	movss xmm1,.zz1
206	movss xmm2,.zz2	206	movss xmm2,.zz2
207	addss xmm1,.dz13	207	addss xmm1,.dz13
208	addss xmm2,.dz23	208	addss xmm2,.dz23
209	movss .zz1,xmm1	209	movss .zz1,xmm1
210	movss .zz2,xmm2	210	movss .zz2,xmm2
211		211
212		212
213	add cx,1	213	add cx,1
214	cmp cx,.y3	214	cmp cx,.y3
215	jl .loop2	215	jl .loop2
216	.loop2_end:	216	.loop2_end:
217		217
218	add esp,128	218	add esp,128
219	pop ebp	219	pop ebp
220		220
221	ret	221	ret
222		222
223	stencil_line:	223	stencil_line:
224	;----------------------------------------------------	224	;----------------------------------------------------
225	;-------------in xmm0 - lo -> hi z1, z2	225	;-------------in xmm0 - lo -> hi z1, z2
226	;--------------- eax - x1 ---------------------------	226	;--------------- eax - x1 ---------------------------
227	;--------------- ebx - x2 ---------------------------	227	;--------------- ebx - x2 ---------------------------
228	;--------------- ecx - y-----------------------------	228	;--------------- ecx - y-----------------------------
229	;--------------- esi - pointer to s-buffer	229	;--------------- esi - pointer to s-buffer
230		230
231		231
232	.dz equ [ebp-4]	232	.dz equ [ebp-4]
233	.z2 equ [ebp-8]	233	.z2 equ [ebp-8]
234	.z1 equ [ebp-12]	234	.z1 equ [ebp-12]
235	.x2 equ [ebp-16]	235	.x2 equ [ebp-16]
236	.x1 equ [ebp-20]	236	.x1 equ [ebp-20]
237	.s_buf equ [ebp-24]	237	.s_buf equ [ebp-24]
238	; cmp eax,ebx	238	; cmp eax,ebx
239	; je @f	239	; je @f
240	; int3	240	; int3
241	; @@:	241	; @@:
242	push ebp	242	push ebp
243	mov ebp,esp	243	mov ebp,esp
244	sub esp,64	244	sub esp,64
245	; cmp eax,0	245	; cmp eax,0
246	; jg @f	246	; jg @f
247	;	247	;
248	; @@:	248	; @@:
249	or cx,cx	249	or cx,cx
250	jle .l_quit	250	jle .l_quit
251		251
252	cmp cx,[size_y_var]	252	cmp cx,[size_y_var]
253	jge .l_quit	253	jge .l_quit
254		254
255	movzx ecx,cx	255	movzx ecx,cx
256	mov .s_buf,esi	256	mov .s_buf,esi
257	cmp eax,ebx	257	cmp eax,ebx
258	je .l_quit	258	je .l_quit
259	jl .l_ok	259	jl .l_ok
260		260
261	xchg eax,ebx	261	xchg eax,ebx
262	shufps xmm0,xmm0,11100001b	262	shufps xmm0,xmm0,11100001b
263	.l_ok:	263	.l_ok:
264		264
265	cmp ax,[size_x_var]	265	cmp ax,[size_x_var]
266	jge .l_quit	266	jge .l_quit
267	cmp bx,0	267	cmp bx,0
268	jle .l_quit	268	jle .l_quit
269		269
270	movlps .z1,xmm0	270	movlps .z1,xmm0
271	mov .x1,eax	271	mov .x1,eax
272	mov .x2,ebx	272	mov .x2,ebx
273		273
274	sub ebx,eax	274	sub ebx,eax
275	movss xmm0,.z2	275	movss xmm0,.z2
276	cvtsi2ss xmm1,ebx	276	cvtsi2ss xmm1,ebx
277	subss xmm0,.z1	277	subss xmm0,.z1
278	divss xmm0,xmm1	278	divss xmm0,xmm1
279	movss .dz,xmm0	279	movss .dz,xmm0
280		280
281	movzx edx,word[size_x_var]	281	movzx edx,word[size_x_var]
282	cmp eax,1	282	cmp eax,1
283	jge @f	283	jge @f
284	mov eax,.x1	284	mov eax,.x1
285	neg eax	285	neg eax
286	cvtsi2ss xmm2,eax	286	cvtsi2ss xmm2,eax
287	mulss xmm2,.dz	287	mulss xmm2,.dz
288	addss xmm2,.z1	288	addss xmm2,.z1
289	movss .z1,xmm2	289	movss .z1,xmm2
290	mov dword .x1,0	290	mov dword .x1,0
291	movzx edx,word[size_x_var]	291	movzx edx,word[size_x_var]
292	sub edx,1	292	sub edx,1
293	@@:	293	@@:
294	cmp .x2,edx	294	cmp .x2,edx
295	jl @f	295	jl @f
296	mov .x2,edx	296	mov .x2,edx
297		297
298	@@:	298	@@:
299	; mov eax,.x1	299	; mov eax,.x1
300	; cmp .x2,eax	300	; cmp .x2,eax
301	; je .l_quit	301	; je .l_quit
302	movzx edx,word[size_x_var]	302	movzx edx,word[size_x_var]
303	mov esi,.s_buf	303	mov esi,.s_buf
304	mov eax,ecx ; y	304	mov eax,ecx ; y
305	mul edx	305	mul edx
306	add eax,.x1	306	add eax,.x1
307		307
308	shl eax,2	308	shl eax,2
309	add esi,eax	309	add esi,eax
310		310
311	mov ecx,.x2	311	mov ecx,.x2
312	sub ecx,.x1	312	sub ecx,.x1
313	movss xmm2,.z1 ; cz	313	movss xmm2,.z1 ; cz
314	.ccalc:	314	.ccalc:
315	movss xmm1,xmm2	315	; movss xmm1,xmm2
316	cmpltss xmm1,dword[esi]	316	comiss xmm2,dword[esi]
317	movd eax,xmm1	-
318	cmp eax,-1	-
319	jnz @f	317	jg @f
320	movss dword[esi],xmm2	318	movss dword[esi],xmm2
321	@@:	319	@@:
322	add esi,4	320	add esi,4
323	addss xmm2,.dz	321	addss xmm2,.dz
324	sub ecx,1	322	sub ecx,1
325	jnz .ccalc	323	jnz .ccalc
326	.l_quit:	324	.l_quit:
327	mov esp,ebp	325	mov esp,ebp
328	pop ebp	326	pop ebp
329	ret	327	ret

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(root)/programs/demos/view3ds/3stencil.inc – Rev 8232 → 8666