Rev 1776 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
1245 | hidnplayr | 1 | gouraud_triangle: |
2 | ;------------------in - eax - x1 shl 16 + y1 --------- |
||
3 | ;---------------------- ebx - x2 shl 16 + y2 --------- |
||
4 | ;---------------------- ecx - x3 shl 16 + y3 --------- |
||
5 | ;---------------------- edi - pointer to screen buffer |
||
6 | ;---------------------- stack : colors---------------- |
||
7 | ;----------------- procedure don't save registers !!-- |
||
8 | .col1r equ ebp+4 ; each color as word |
||
9 | .col1g equ ebp+6 |
||
10 | .col1b equ ebp+8 |
||
11 | .col2r equ ebp+10 |
||
12 | .col2g equ ebp+12 |
||
13 | .col2b equ ebp+14 |
||
14 | .col3r equ ebp+16 |
||
15 | .col3g equ ebp+18 |
||
16 | .col3b equ ebp+20 |
||
17 | |||
18 | .x1 equ word[ebp-2] |
||
19 | .y1 equ word[ebp-4] |
||
20 | .x2 equ word[ebp-6] |
||
21 | .y2 equ word[ebp-8] |
||
22 | .x3 equ word[ebp-10] |
||
23 | .y3 equ word[ebp-12] |
||
24 | |||
1776 | yogev_ezra | 25 | .dx12 equ dword[ebp-16] |
26 | .dc12r equ dword[ebp-20] |
||
27 | .dc12g equ [ebp-24] |
||
28 | .dc12b equ dword[ebp-28] |
||
29 | .dx13 equ dword[ebp-32] |
||
30 | .dc13r equ dword[ebp-36] |
||
31 | .dc13g equ [ebp-40] |
||
32 | .dc13b equ dword[ebp-44] |
||
33 | .dx23 equ dword[ebp-48] |
||
34 | .dc23r equ dword[ebp-52] |
||
35 | .dc23g equ [ebp-56] |
||
36 | .dc23b equ dword[ebp-60] |
||
1245 | hidnplayr | 37 | |
1776 | yogev_ezra | 38 | .c1r equ dword[ebp-64] |
39 | .c1g equ [ebp-68] |
||
40 | .c1b equ dword[ebp-72] |
||
41 | .c2r equ dword[ebp-76] |
||
42 | .c2g equ [ebp-80] |
||
43 | .c2b equ dword[ebp-84] |
||
1245 | hidnplayr | 44 | |
45 | |||
46 | mov ebp,esp |
||
47 | ; sub esp,72 |
||
48 | |||
49 | .sort3: ; sort triangle coordinates... |
||
50 | cmp ax,bx |
||
51 | jle .sort1 |
||
52 | xchg eax,ebx |
||
53 | mov edx,dword[.col1r] |
||
54 | xchg edx,dword[.col2r] |
||
55 | mov dword[.col1r],edx |
||
56 | mov dx,word[.col1b] |
||
57 | xchg dx,word[.col2b] |
||
58 | mov word[.col1b],dx |
||
59 | .sort1: |
||
60 | cmp bx,cx |
||
61 | jle .sort2 |
||
62 | xchg ebx,ecx |
||
63 | mov edx,dword[.col2r] |
||
64 | xchg edx,dword[.col3r] |
||
65 | mov dword[.col2r],edx |
||
66 | mov dx,word[.col2b] |
||
67 | xchg dx,word[.col3b] |
||
68 | mov word[.col2b],dx |
||
69 | jmp .sort3 |
||
70 | .sort2: |
||
71 | push eax ;store triangle coordinates in user friendly variables |
||
72 | push ebx |
||
73 | push ecx |
||
1776 | yogev_ezra | 74 | ; sub esp,72 ; set correctly value of esp |
1245 | hidnplayr | 75 | |
76 | mov edx,eax ; check only X triangle coordinate |
||
77 | or edx,ebx |
||
78 | or edx,ecx |
||
79 | test edx,80000000h |
||
80 | jne .gt_loop2_end |
||
6619 | leency | 81 | |
82 | mov dx,[size_x_var] |
||
83 | dec dx |
||
1245 | hidnplayr | 84 | shr eax,16 |
6619 | leency | 85 | cmp ax,dx ;SIZE_X-1 |
1245 | hidnplayr | 86 | jg .gt_loop2_end |
87 | shr ebx,16 |
||
6619 | leency | 88 | cmp bx,dx ;SIZE_X-1 |
1245 | hidnplayr | 89 | jg .gt_loop2_end |
90 | shr ecx,16 |
||
6619 | leency | 91 | cmp cx,dx ;SIZE_X-1 |
1245 | hidnplayr | 92 | jg .gt_loop2_end |
93 | |||
94 | |||
95 | mov bx,.y2 ; calc deltas |
||
96 | sub bx,.y1 |
||
97 | jnz .gt_dx12_make |
||
1776 | yogev_ezra | 98 | xor edx,edx |
99 | mov ecx,4 |
||
100 | @@: |
||
101 | push edx |
||
102 | loop @b |
||
103 | ; mov .dx12,0 |
||
104 | ; mov .dc12r,0 |
||
105 | ; mov .dc12g,0 |
||
106 | ; mov .dc12b,0 |
||
1245 | hidnplayr | 107 | jmp .gt_dx12_done |
108 | .gt_dx12_make: |
||
109 | |||
110 | mov ax,.x2 |
||
111 | sub ax,.x1 |
||
112 | cwde |
||
113 | movsx ebx,bx |
||
114 | shl eax,ROUND |
||
115 | cdq |
||
116 | idiv ebx |
||
1776 | yogev_ezra | 117 | ; mov .dx12,eax |
118 | push eax |
||
1245 | hidnplayr | 119 | |
120 | mov ax,word[.col2r] |
||
121 | sub ax,word[.col1r] |
||
122 | cwde |
||
123 | shl eax,ROUND |
||
124 | cdq |
||
125 | idiv ebx |
||
1776 | yogev_ezra | 126 | ; mov .dc12r,eax |
127 | push eax |
||
128 | |||
1245 | hidnplayr | 129 | mov ax,word[.col2g] |
130 | sub ax,word[.col1g] |
||
131 | cwde |
||
132 | shl eax,ROUND |
||
133 | cdq |
||
134 | idiv ebx |
||
1776 | yogev_ezra | 135 | ; mov .dc12g,eax |
136 | push eax |
||
137 | |||
1245 | hidnplayr | 138 | mov ax,word[.col2b] |
139 | sub ax,word[.col1b] |
||
140 | cwde |
||
141 | shl eax,ROUND |
||
142 | cdq |
||
143 | idiv ebx |
||
1776 | yogev_ezra | 144 | ; mov .dc12b,eax |
145 | push eax |
||
1245 | hidnplayr | 146 | .gt_dx12_done: |
147 | mov bx,.y3 |
||
148 | sub bx,.y1 |
||
149 | jnz .gt_dx13_make |
||
1776 | yogev_ezra | 150 | xor edx,edx |
151 | mov ecx,4 |
||
152 | @@: |
||
153 | push edx |
||
154 | loop @b |
||
155 | ; mov .dx13,0 |
||
156 | ; mov .dc13r,0 |
||
157 | ; mov .dc13g,0 |
||
158 | ; mov .dc13b,0 |
||
1245 | hidnplayr | 159 | jmp .gt_dx13_done |
160 | .gt_dx13_make: |
||
161 | mov ax,.x3 |
||
162 | sub ax,.x1 |
||
163 | cwde |
||
164 | movsx ebx,bx |
||
165 | shl eax,ROUND |
||
166 | cdq |
||
167 | idiv ebx |
||
1776 | yogev_ezra | 168 | ; mov .dx13,eax |
169 | push eax |
||
1245 | hidnplayr | 170 | |
171 | mov ax,word[.col3r] |
||
172 | sub ax,word[.col1r] |
||
173 | cwde |
||
174 | shl eax,ROUND |
||
175 | cdq |
||
176 | idiv ebx |
||
1776 | yogev_ezra | 177 | ; mov .dc13r,eax |
178 | push eax |
||
179 | |||
1245 | hidnplayr | 180 | mov ax,word[.col3g] |
181 | sub ax,word[.col1g] |
||
182 | cwde |
||
183 | shl eax,ROUND |
||
184 | cdq |
||
185 | idiv ebx |
||
1776 | yogev_ezra | 186 | ; mov .dc13g,eax |
187 | push eax |
||
1245 | hidnplayr | 188 | mov ax,word[.col3b] |
189 | sub ax,word[.col1b] |
||
190 | cwde |
||
191 | shl eax,ROUND |
||
192 | cdq |
||
193 | idiv ebx |
||
1776 | yogev_ezra | 194 | ; mov .dc13b,eax |
195 | push eax |
||
1245 | hidnplayr | 196 | .gt_dx13_done: |
197 | mov bx,.y3 |
||
198 | sub bx,.y2 |
||
199 | jnz .gt_dx23_make |
||
1776 | yogev_ezra | 200 | xor edx,edx |
201 | mov ecx,4 |
||
202 | @@: |
||
203 | push edx |
||
204 | loop @b |
||
205 | ; mov .dx23,0 |
||
206 | ; mov .dc23r,0 |
||
207 | ; mov .dc23g,0 |
||
208 | ; mov .dc23b,0 |
||
1245 | hidnplayr | 209 | jmp .gt_dx23_done |
210 | .gt_dx23_make: |
||
211 | mov ax,.x3 |
||
212 | sub ax,.x2 |
||
213 | cwde |
||
214 | movsx ebx,bx |
||
215 | shl eax,ROUND |
||
216 | cdq |
||
217 | idiv ebx |
||
1776 | yogev_ezra | 218 | ; mov .dx23,eax |
219 | push eax |
||
1245 | hidnplayr | 220 | |
221 | mov ax,word[.col3r] |
||
222 | sub ax,word[.col2r] |
||
223 | cwde |
||
224 | shl eax,ROUND |
||
225 | cdq |
||
226 | idiv ebx |
||
1776 | yogev_ezra | 227 | ; mov .dc23r,eax |
228 | push eax |
||
229 | |||
230 | |||
1245 | hidnplayr | 231 | mov ax,word[.col3g] |
232 | sub ax,word[.col2g] |
||
233 | cwde |
||
234 | shl eax,ROUND |
||
235 | cdq |
||
236 | idiv ebx |
||
1776 | yogev_ezra | 237 | ; mov .dc23g,eax |
238 | push eax |
||
239 | |||
1245 | hidnplayr | 240 | mov ax,word[.col3b] |
241 | sub ax,word[.col2b] |
||
242 | cwde |
||
243 | shl eax,ROUND |
||
244 | cdq |
||
245 | idiv ebx |
||
1776 | yogev_ezra | 246 | ; mov .dc23b,eax |
247 | push eax |
||
248 | |||
1245 | hidnplayr | 249 | .gt_dx23_done: |
1776 | yogev_ezra | 250 | sub esp,24 |
1245 | hidnplayr | 251 | movsx eax,.x1 |
252 | shl eax,ROUND |
||
253 | mov ebx,eax |
||
254 | movsx edx,word[.col1r] |
||
255 | shl edx,ROUND |
||
256 | mov .c1r,edx |
||
257 | mov .c2r,edx |
||
258 | movsx edx,word[.col1g] |
||
259 | shl edx,ROUND |
||
260 | mov .c1g,edx |
||
261 | mov .c2g,edx |
||
262 | movsx edx,word[.col1b] |
||
263 | shl edx,ROUND |
||
264 | mov .c1b,edx |
||
265 | mov .c2b,edx |
||
266 | mov cx,.y1 |
||
267 | cmp cx,.y2 |
||
268 | jge .gt_loop1_end |
||
269 | .gt_loop1: |
||
270 | push eax ; eax - cur x1 |
||
271 | push ebx ; ebx - cur x2 |
||
272 | push cx ; cx - cur y |
||
273 | push edi |
||
274 | push ebp |
||
275 | |||
1776 | yogev_ezra | 276 | sar ebx,ROUND |
277 | push bx |
||
1245 | hidnplayr | 278 | mov edx,.c2r ; c2r,c2g,c2b,c1r,c1g,c1b - current colors |
279 | sar edx,ROUND |
||
280 | push dx |
||
281 | mov edx,.c2g |
||
282 | sar edx,ROUND |
||
283 | push dx |
||
284 | mov edx,.c2b |
||
285 | sar edx,ROUND |
||
286 | push dx |
||
1776 | yogev_ezra | 287 | |
288 | sar eax,ROUND |
||
289 | push ax |
||
1245 | hidnplayr | 290 | mov edx,.c1r |
291 | sar edx,ROUND |
||
292 | push dx |
||
293 | mov edx,.c1g |
||
294 | sar edx,ROUND |
||
295 | push dx |
||
296 | mov edx,.c1b |
||
297 | sar edx,ROUND |
||
298 | push dx |
||
299 | push cx |
||
300 | call gouraud_line |
||
301 | |||
302 | pop ebp |
||
303 | pop edi |
||
304 | pop cx |
||
305 | pop ebx |
||
306 | pop eax |
||
307 | |||
1776 | yogev_ezra | 308 | if Ext >= MMX |
309 | movq mm0,.c1g |
||
310 | paddd mm0,.dc13g |
||
311 | movq .c1g,mm0 |
||
312 | else |
||
1245 | hidnplayr | 313 | mov edx,.dc13r |
314 | add .c1r,edx |
||
315 | mov edx,.dc13g |
||
316 | add .c1g,edx |
||
1776 | yogev_ezra | 317 | end if |
1245 | hidnplayr | 318 | mov edx,.dc13b |
319 | add .c1b,edx |
||
1776 | yogev_ezra | 320 | if Ext >= MMX |
321 | movq mm0,.c2g |
||
322 | paddd mm0,.dc12g |
||
323 | movq .c2g,mm0 |
||
324 | else |
||
1245 | hidnplayr | 325 | mov edx,.dc12r |
326 | add .c2r,edx |
||
327 | mov edx,.dc12g |
||
328 | add .c2g,edx |
||
1776 | yogev_ezra | 329 | end if |
1245 | hidnplayr | 330 | mov edx,.dc12b |
331 | add .c2b,edx |
||
332 | |||
333 | add eax,.dx13 |
||
334 | add ebx,.dx12 |
||
335 | inc cx |
||
336 | cmp cx,.y2 |
||
337 | jl .gt_loop1 |
||
338 | .gt_loop1_end: |
||
339 | |||
340 | mov cx,.y2 |
||
341 | cmp cx,.y3 |
||
342 | jge .gt_loop2_end |
||
343 | movsx ebx,.x2 |
||
344 | shl ebx,ROUND |
||
345 | |||
346 | movsx edx,word[.col2r] |
||
347 | shl edx,ROUND |
||
348 | mov .c2r,edx |
||
349 | movsx edx,word[.col2g] |
||
350 | shl edx,ROUND |
||
351 | mov .c2g,edx |
||
352 | movsx edx,word[.col2b] |
||
353 | shl edx,ROUND |
||
354 | mov .c2b,edx |
||
355 | .gt_loop2: |
||
356 | push eax ; eax - cur x1 |
||
357 | push ebx ; ebx - cur x2 |
||
358 | push cx |
||
359 | push edi |
||
360 | push ebp |
||
361 | |||
1776 | yogev_ezra | 362 | sar ebx,ROUND |
363 | push bx |
||
1245 | hidnplayr | 364 | mov edx,.c2r |
365 | sar edx,ROUND |
||
366 | push dx |
||
367 | mov edx,.c2g |
||
368 | sar edx,ROUND |
||
369 | push dx |
||
370 | mov edx,.c2b |
||
371 | sar edx,ROUND |
||
372 | push dx |
||
1776 | yogev_ezra | 373 | |
374 | sar eax,ROUND |
||
375 | push ax |
||
1245 | hidnplayr | 376 | mov edx,.c1r |
377 | sar edx,ROUND |
||
378 | push dx |
||
379 | mov edx,.c1g |
||
380 | sar edx,ROUND |
||
381 | push dx |
||
382 | mov edx,.c1b |
||
383 | sar edx,ROUND |
||
384 | push dx |
||
385 | push cx |
||
386 | call gouraud_line |
||
387 | |||
388 | pop ebp |
||
389 | pop edi |
||
390 | pop cx |
||
391 | pop ebx |
||
392 | pop eax |
||
393 | |||
1776 | yogev_ezra | 394 | if Ext >= MMX |
395 | movq mm0,.c1g |
||
396 | paddd mm0,.dc13g |
||
397 | movq .c1g,mm0 |
||
398 | else |
||
1245 | hidnplayr | 399 | mov edx,.dc13r |
400 | add .c1r,edx |
||
401 | mov edx,.dc13g |
||
402 | add .c1g,edx |
||
1776 | yogev_ezra | 403 | end if |
1245 | hidnplayr | 404 | mov edx,.dc13b |
405 | add .c1b,edx |
||
1776 | yogev_ezra | 406 | if Ext >= MMX |
407 | movq mm0,.c2g |
||
408 | paddd mm0,.dc23g |
||
409 | movq .c2g,mm0 |
||
410 | else |
||
1245 | hidnplayr | 411 | mov edx,.dc23r |
412 | add .c2r,edx |
||
413 | mov edx,.dc23g |
||
414 | add .c2g,edx |
||
1776 | yogev_ezra | 415 | end if |
1245 | hidnplayr | 416 | mov edx,.dc23b |
417 | add .c2b,edx |
||
418 | |||
419 | add eax,.dx13 |
||
420 | add ebx,.dx23 |
||
421 | inc cx |
||
422 | cmp cx,.y3 |
||
423 | jl .gt_loop2 |
||
424 | .gt_loop2_end: |
||
425 | |||
426 | ; add esp,84 |
||
427 | mov esp,ebp |
||
428 | ret 18 |
||
429 | gouraud_line: |
||
430 | ;-------------in - edi - pointer to screen buffer |
||
431 | ;----------------- stack - another parameters |
||
1776 | yogev_ezra | 432 | .y equ word [ebp+4] |
433 | .col1b equ ebp+6 |
||
434 | .col1g equ ebp+8 |
||
435 | .col1r equ ebp+10 |
||
436 | .x1 equ [ebp+12] |
||
437 | .col2b equ ebp+14 |
||
438 | .col2g equ ebp+16 |
||
439 | .col2r equ ebp+18 |
||
440 | .x2 equ [ebp+20] |
||
1245 | hidnplayr | 441 | .dc_r equ dword[ebp-4] |
442 | .dc_g equ dword[ebp-8] |
||
443 | .dc_b equ dword[ebp-12] |
||
444 | mov ebp,esp |
||
445 | |||
446 | mov ax,.y |
||
447 | or ax,ax |
||
448 | jl .gl_quit |
||
6619 | leency | 449 | mov dx,[size_y_var] |
450 | dec dx |
||
451 | cmp ax,dx ;SIZE_Y-1 |
||
1245 | hidnplayr | 452 | jg .gl_quit |
453 | |||
454 | mov ax,.x1 |
||
455 | cmp ax,.x2 |
||
456 | je .gl_quit |
||
457 | jl .gl_ok |
||
458 | |||
1776 | yogev_ezra | 459 | if Ext >= MMX |
460 | movq mm0,[.col1b] |
||
461 | movq mm1,[.col2b] |
||
462 | movq [.col1b],mm1 |
||
463 | movq [.col2b],mm0 |
||
464 | else |
||
465 | mov eax,[.col1b] |
||
466 | xchg eax,[.col2b] |
||
467 | mov [.col1b],eax |
||
468 | mov eax,[.col1r] |
||
469 | xchg eax,[.col2r] |
||
470 | mov [.col1r],eax |
||
471 | end if |
||
1245 | hidnplayr | 472 | .gl_ok: |
473 | ; cmp .x1,SIZE_X-1 ;check |
||
474 | ; jg .gl_quit |
||
475 | ; cmp .x2,SIZE_X-1 |
||
476 | ; jl @f |
||
477 | ; mov .x2,SIZE_X-1 |
||
478 | ; @@: |
||
479 | ; cmp .x1,0 |
||
480 | ; jg @f |
||
481 | ; mov .x1,0 |
||
482 | ; @@: |
||
483 | ; cmp .x2,0 |
||
484 | ; jl .gl_quit |
||
485 | |||
486 | movsx ecx,.y |
||
6619 | leency | 487 | movzx eax,word[size_x_var] |
488 | lea eax,[eax*3] |
||
489 | ; mov eax,SIZE_X*3 |
||
1245 | hidnplayr | 490 | mul ecx |
1776 | yogev_ezra | 491 | movsx ebx,word .x1 |
1245 | hidnplayr | 492 | lea ecx,[ebx*2+eax] |
493 | add edi,ecx |
||
494 | add edi,ebx |
||
495 | |||
496 | mov ax,word[.col2r] |
||
497 | sub ax,word[.col1r] |
||
498 | cwde |
||
499 | shl eax,ROUND |
||
500 | cdq |
||
501 | mov cx,.x2 |
||
502 | sub cx,.x1 |
||
503 | movsx ecx,cx |
||
504 | idiv ecx |
||
505 | ;mov .dc_r,eax ;first delta |
||
506 | push eax |
||
507 | |||
508 | mov ax,word[.col2g] |
||
509 | sub ax,word[.col1g] |
||
510 | cwde |
||
511 | shl eax,ROUND |
||
512 | cdq |
||
513 | idiv ecx |
||
514 | ;mov .dc_g,eax |
||
515 | push eax |
||
516 | |||
517 | mov ax,word[.col2b] |
||
518 | sub ax,word[.col1b] |
||
519 | cwde |
||
520 | shl eax,ROUND |
||
521 | cdq |
||
522 | idiv ecx |
||
523 | ; mov .dc_b,eax |
||
524 | push eax |
||
525 | |||
526 | movsx ebx,word[.col1r] |
||
527 | shl ebx,ROUND |
||
528 | movsx edx,word[.col1g] |
||
529 | shl edx,ROUND |
||
530 | movsx esi,word[.col1b] |
||
531 | shl esi,ROUND |
||
532 | .gl_draw: |
||
533 | mov eax,ebx |
||
534 | sar eax,ROUND |
||
535 | stosb |
||
536 | mov eax,edx |
||
537 | sar eax,ROUND |
||
538 | stosb |
||
539 | mov eax,esi |
||
540 | sar eax,ROUND |
||
541 | stosb |
||
542 | add ebx,.dc_r |
||
543 | add edx,.dc_g |
||
544 | add esi,.dc_b |
||
545 | loop .gl_draw |
||
546 | .gl_quit: |
||
547 | ; add esp,12 |
||
548 | mov esp,ebp |
||
1776 | yogev_ezra | 549 | ret 18 |
550 | if 0 |
||
551 | gouraud_line_SSE: ; new |
||
552 | ;-------------in - edi - pointer to screen buffer |
||
553 | ;----------------- stack - another parameters |
||
554 | .y equ word [ebp+4] |
||
555 | .col1b equ ebp+6 |
||
556 | .col1g equ ebp+8 |
||
557 | .col1r equ ebp+10 |
||
558 | .x1 equ [ebp+12] |
||
559 | .col2b equ ebp+14 |
||
560 | .col2g equ ebp+16 |
||
561 | .col2r equ ebp+18 |
||
562 | .x2 equ [ebp+20] |
||
563 | .dc_r equ dword[ebp-4] |
||
564 | .dc_g equ dword[ebp-8] |
||
565 | .dc_b equ dword[ebp-12] |
||
566 | .lenght equ [ebp-16] |
||
567 | .factor equ [ebp-24] ;new |
||
568 | mov ebp,esp |
||
569 | |||
570 | mov ax,.y |
||
571 | or ax,ax |
||
572 | jl .gl_quit |
||
573 | cmp ax,SIZE_Y-1 |
||
574 | jg .gl_quit |
||
575 | |||
576 | mov ax,.x1 |
||
577 | cmp ax,.x2 |
||
578 | je .gl_quit |
||
579 | jl .gl_ok |
||
580 | |||
581 | if Ext >= MMX |
||
582 | movq mm0,[.col1b] |
||
583 | movq mm1,[.col2b] |
||
584 | movq [.col1b],mm1 |
||
585 | movq [.col2b],mm0 |
||
586 | else |
||
587 | mov eax,[.col1b] |
||
588 | xchg eax,[.col2b] |
||
589 | mov [.col1b],eax |
||
590 | mov eax,[.col1r] |
||
591 | xchg eax,[.col2r] |
||
592 | mov [.col1r],eax |
||
593 | end if |
||
594 | .gl_ok: |
||
595 | ; cmp .x1,SIZE_X-1 ;check |
||
596 | ; jg .gl_quit |
||
597 | ; cmp .x2,SIZE_X-1 |
||
598 | ; jl @f |
||
599 | ; mov .x2,SIZE_X-1 |
||
600 | ; @@: |
||
601 | ; cmp .x1,0 |
||
602 | ; jg @f |
||
603 | ; mov .x1,0 |
||
604 | ; @@: |
||
605 | ; cmp .x2,0 |
||
606 | ; jl .gl_quit |
||
607 | |||
608 | movsx ecx,.y |
||
609 | mov eax,SIZE_X*3 |
||
610 | mul ecx |
||
611 | movsx ebx,word .x1 |
||
612 | lea ecx,[ebx*2+eax] |
||
613 | add edi,ecx |
||
614 | add edi,ebx |
||
615 | |||
616 | mov ax,word[.col2r] |
||
617 | sub ax,word[.col1r] |
||
618 | cwde |
||
619 | shl eax,ROUND |
||
620 | cdq |
||
621 | mov cx,.x2 |
||
622 | sub cx,.x1 |
||
623 | movsx ecx,cx |
||
624 | idiv ecx |
||
625 | ;mov .dc_r,eax ;first delta |
||
626 | push eax |
||
627 | |||
628 | mov ax,word[.col2g] |
||
629 | sub ax,word[.col1g] |
||
630 | cwde |
||
631 | shl eax,ROUND |
||
632 | cdq |
||
633 | idiv ecx |
||
634 | ;mov .dc_g,eax |
||
635 | push eax |
||
636 | |||
637 | mov ax,word[.col2b] |
||
638 | sub ax,word[.col1b] |
||
639 | cwde |
||
640 | shl eax,ROUND |
||
641 | cdq |
||
642 | idiv ecx |
||
643 | ; mov .dc_b,eax |
||
644 | push eax |
||
645 | |||
646 | movsx ebx,word[.col1r] |
||
647 | shl ebx,ROUND |
||
648 | movsx edx,word[.col1g] |
||
649 | shl edx,ROUND |
||
650 | movsx esi,word[.col1b] |
||
651 | shl esi,ROUND |
||
652 | |||
653 | push ecx ; store line lenght |
||
654 | movd mm3,.dc_r |
||
655 | psrlq mm3,16 ; load dr to lowest word of mm3 |
||
656 | pxor mm2,mm2 ; clear mm2 |
||
657 | movd mm4,.dc_g |
||
658 | punpcklwd mm3,mm3 ; unpack dr to lower 2 words in in mm3 |
||
659 | psrlq mm4,16 ; load dg to lowest word of mm4 |
||
660 | movd mm5,.dc_b |
||
661 | psrlq mm5,16 ; load db to lowest word of mm5 |
||
662 | punpcklwd mm4,mm4 ; unpack dg to lower 2 words in in mm3 |
||
663 | lea ecx,[factor] |
||
664 | punpckldq mm3,mm3 |
||
665 | punpcklwd mm5,mm5 ; unpack db to lower 2 words in in mm5 |
||
666 | movq mm6,[.col1b] |
||
667 | xor eax,eax |
||
668 | pinsrw mm6,eax,3 ; clear the highest word in mm6 |
||
669 | mov eax,010000h |
||
670 | punpckldq mm4,mm4 ; unpack dg to 4 words in mm4 |
||
671 | mov [ecx],eax |
||
672 | mov eax,030002h |
||
673 | punpckldq mm5,mm5 ; unpack db to 4 words in mm5 |
||
674 | movq mm7,mm6 ; load r1r1,g1g1,b1b1 to the first three |
||
675 | ; words of mm7 |
||
676 | pxor mm1,mm1 ; clear mm1 |
||
677 | |||
678 | |||
679 | .gl_draw: |
||
680 | mov eax,ebx |
||
681 | sar eax,ROUND |
||
682 | stosb |
||
683 | mov eax,edx |
||
684 | sar eax,ROUND |
||
685 | stosb |
||
686 | mov eax,esi |
||
687 | sar eax,ROUND |
||
688 | stosb |
||
689 | add ebx,.dc_r |
||
690 | add edx,.dc_g |
||
691 | add esi,.dc_b |
||
692 | loop .gl_draw |
||
693 | .gl_quit: |
||
694 | ; add esp,12 |
||
695 | mov esp,ebp |
||
696 | ret 18 |
||
697 | end if |