Rev 109 | Rev 139 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
31 | halyavin | 1 | ; BGIFONT.INC v1.0 beta |
2 | ; |
||
3 | ; Written in pure assembler by Ivushkin Andrey aka Willow |
||
4 | ; |
||
5 | ; Created: December 16, 2004 |
||
6 | ; |
||
7 | ; Last changed: February 2, 2005 |
||
8 | ; |
||
9 | ; Compile with FASM |
||
10 | |||
11 | ; BGI constants |
||
12 | BGI_NODRAW equ 0x10000 |
||
13 | BGI_ITALIC equ 0x20000 |
||
14 | BGI_BOLD equ 0x40000 |
||
15 | BGI_HALEFT equ 0x0 |
||
16 | BGI_HARIGHT equ 0x1000 |
||
17 | BGI_HACENTER equ 0x2000 |
||
18 | BGI_VABOTTOM equ 0x0 |
||
19 | BGI_VATOP equ 0x4000 |
||
20 | BGI_VACENTER equ 0x8000 |
||
21 | |||
22 | BGI_FREE equ 0x80000000 |
||
23 | BGI_HAMASK equ 0x3000 |
||
24 | BGI_VAMASK equ 0xc000 |
||
25 | |||
26 | ; Freetext structure |
||
27 | struc BGIfree FontName,XY,Angle,ScaleX,ScaleY,StrPtr,StrLen,Color,Align |
||
28 | { |
||
29 | dd FontName ;0 |
||
30 | dd XY ;4 |
||
31 | dd Angle ;8 |
||
32 | dd ScaleX ;12 |
||
33 | dd ScaleY ;16 |
||
34 | dd StrPtr ;20 |
||
35 | dd StrLen ;24 |
||
36 | dd Color ;28 |
||
37 | dd Align ;32 |
||
38 | } |
||
39 | |||
40 | ; font options structure |
||
41 | struc BGIrec FontName,CharsCount,FirstChar,UpperMargin,LowerMargin,\ |
||
42 | Widths,FirstData,EOF,font_data |
||
43 | { |
||
44 | .FontName dd ? ; 0 |
||
45 | .CharsCount db ? ; 4 |
||
46 | .FirstChar db ? ; 5 |
||
47 | .UpperMargin db ? ; 6 |
||
48 | .LowerMargin db ? ; 7 |
||
49 | .Widths dd ? ; 8 |
||
50 | .FirstData dd ? ; 12 |
||
51 | .EOF dd ? ; 16 |
||
52 | .font_data dd ? ; 20 follows (Offsets) |
||
53 | } |
||
54 | |||
55 | macro BGIfont_GetID |
||
56 | { |
||
57 | call _BGIfont_GetID |
||
58 | } |
||
59 | |||
60 | macro BGIfont_Prepare |
||
61 | { |
||
62 | call _BGIfont_Prepare |
||
63 | } |
||
64 | |||
65 | macro BGIfont_Freetext |
||
66 | { |
||
67 | call _BGIfont_Freetext |
||
68 | } |
||
69 | |||
70 | macro BGIfont_Outtext |
||
71 | { |
||
72 | call _BGIfont_Outtext |
||
73 | } |
||
74 | |||
75 | macro _FI name,_size |
||
76 | { |
||
77 | db name |
||
78 | if BGI_LEVEL eq KERNEL |
||
79 | dw _size |
||
80 | end if |
||
81 | } |
||
82 | |||
83 | BGIfont_names: |
||
84 | _FI 'LCOM',11485 ;7 |
||
85 | _FI 'EURO',8117 ;5 |
||
86 | _FI 'GOTH',13816 ;6 |
||
87 | _FI 'LITT',3596 ;8 |
||
88 | _FI 'TRIP',11932 ;14 |
||
89 | _FI 'SCRI',8490 ;11 |
||
90 | _FI 'SMAL',4162 ;13 |
||
91 | _FI 'TSCR',12134 ;15 |
||
92 | _FI 'SANS',8453 ;10 |
||
93 | _FI 'SIMP',9522 ;12 |
||
94 | BGIfont_names_end: |
||
95 | |||
96 | macro BGIfont_Init |
||
97 | { |
||
98 | ; in: ecx - number of fonts to load; |
||
99 | ; esi-> _FI structure |
||
100 | ; edi-> where to load |
||
101 | push edi |
||
102 | if BGI_LEVEL eq KERNEL |
||
103 | mov edi,0x40000 |
||
104 | end if |
||
105 | .nfont: |
||
106 | mov edx,[esi] |
||
107 | if BGI_LEVEL eq KERNEL |
||
108 | movzx ebx,word[esi+4] |
||
109 | mov [BGIfont_Prepare.okflag],'N' |
||
110 | end if |
||
111 | call _BGIfont_Prepare |
||
112 | if ~ BGI_LEVEL eq KERNEL |
||
113 | add esi,4 |
||
114 | else |
||
115 | push esi |
||
116 | test eax,eax |
||
117 | jz .fail |
||
118 | mov [BGIfont_Prepare.okflag],'*' |
||
119 | .fail: |
||
120 | mov esi,BGIfont_Prepare.font |
||
121 | call boot_log |
||
122 | pop esi |
||
123 | add esi,6 |
||
124 | end if |
||
125 | loop .nfont |
||
126 | dph2 _BGI_BOLD,300,550 |
||
127 | ; movzx edi,byte[0x40000] |
||
128 | pop edi |
||
129 | } |
||
130 | |||
131 | BGIfont_get2head: |
||
132 | shr ecx,28 ; font # |
||
133 | sub ecx,4 |
||
134 | jb .exit2 ; invalid # |
||
135 | mov edi,[BGIfont_Ptr] |
||
136 | inc edi |
||
137 | cmp cl,[edi-1] |
||
138 | jae .exit2 ; # too large |
||
139 | jecxz .ex |
||
140 | .fnext: |
||
141 | mov edi,[edi+16] |
||
142 | loop .fnext |
||
143 | jmp .ex |
||
144 | .exit2: |
||
145 | xor edi,edi |
||
146 | .ex: |
||
147 | ret |
||
148 | |||
149 | BGIfont_GetName: |
||
150 | ; in: ecx-fontID; |
||
151 | ; out: edx-font name. |
||
152 | call BGIfont_get2head |
||
153 | xor edx,edx |
||
154 | test edi,edi |
||
155 | jz .ex |
||
156 | mov edx,[edi] |
||
157 | .ex: |
||
158 | ret |
||
159 | |||
160 | macro dps2 _str |
||
161 | { |
||
162 | if ~ BGI_LEVEL eq KERNEL |
||
163 | if LOAD_MSG eq 1 |
||
164 | dps _str |
||
165 | end if |
||
166 | else |
||
167 | pusha |
||
168 | mov esi,BGIfont_Prepare.okflag |
||
169 | mov byte[esi], _str |
||
170 | call boot_log |
||
171 | popa |
||
172 | end if |
||
173 | } |
||
174 | |||
175 | macro dph2 num,x,y |
||
176 | { |
||
177 | if BGI_LEVEL eq KERNEL |
||
178 | pusha |
||
179 | mov eax,0x00080100 |
||
180 | mov ebx,num |
||
181 | mov ecx,x shl 16+y |
||
182 | mov edx,0xFF0000 |
||
183 | call display_number |
||
184 | popa |
||
185 | end if |
||
186 | } |
||
187 | |||
188 | _BGIfont_GetID: |
||
189 | ; in: edx-font name; |
||
190 | ; out: eax-fontID, edi->BGIrec |
||
191 | push ecx edi |
||
192 | mov edi,[BGIfont_Ptr] |
||
193 | movzx ecx,byte[edi] ; ecx-font count |
||
194 | mov eax,ecx |
||
195 | inc edi ; edi->FontName |
||
196 | jecxz .ex |
||
197 | .fnext: |
||
198 | cmp edx,[edi] |
||
199 | jne .floop |
||
200 | sub eax,ecx |
||
201 | add eax,4 |
||
202 | shl eax,28 |
||
203 | jmp .ex |
||
204 | .floop: |
||
205 | mov edi,[edi+16] |
||
206 | loop .fnext |
||
207 | .num0: |
||
208 | xor eax,eax |
||
209 | .ex: |
||
210 | pop edi ecx |
||
211 | ret |
||
212 | |||
213 | _BGIfont_Prepare: |
||
214 | ; in: edx-font name, edi->pointer to load fonts (fonts_count) |
||
215 | ; out: eax-ID of new font loaded; eax=0 error |
||
216 | cmp [BGIfont_Ptr],0 |
||
217 | jne .already |
||
218 | mov [BGIfont_Ptr],edi |
||
219 | .already: |
||
220 | pusha |
||
221 | mov edi,[BGIfont_Ptr] |
||
222 | movzx ecx,byte[edi] ; ecx-font count |
||
223 | mov eax,ecx |
||
224 | inc edi ; edi->FontName |
||
225 | jecxz .fload |
||
226 | .fnext: |
||
227 | cmp edx,[edi] |
||
228 | jne .loop |
||
229 | sub eax,ecx |
||
230 | inc eax |
||
231 | jmp .cr_id |
||
232 | .loop: |
||
233 | mov edi,[edi+16] |
||
234 | loop .fnext |
||
235 | .fload: |
||
236 | mov dword[.font],edx ; filename |
||
237 | mov esi,edi ; esi->FontName |
||
238 | mov [.dest],edi ; ptr to load font |
||
239 | if ~ BGI_LEVEL eq KERNEL |
||
240 | mov [.fsize],1 |
||
241 | mov eax,58 |
||
242 | mov ebx,.fontinfo |
||
243 | int 0x40 |
||
244 | test eax,eax |
||
245 | jnz .fail |
||
246 | dps2 '1' |
||
247 | shr ebx,9 |
||
248 | inc ebx |
||
249 | mov [.fsize],ebx |
||
250 | mov ebx,.fontinfo |
||
251 | mov eax,58 |
||
252 | int 0x40 ; ebx - file size |
||
253 | else |
||
254 | push edi esi edx |
||
255 | mov eax,.font |
||
256 | xor ebx,ebx |
||
257 | mov esi,12 |
||
258 | mov ecx,ebx |
||
259 | mov edx,edi |
||
260 | call fileread |
||
261 | pop edx esi edi |
||
262 | mov ebp,edi |
||
263 | add ebp,ebx |
||
264 | cmp ebp,0x50000 |
||
265 | ja .fail |
||
266 | end if |
||
267 | cmp dword[edi],0x08084b50 ; 'PK',8,8 |
||
268 | jne .fail |
||
269 | dps2 '2' |
||
270 | inc edi |
||
271 | mov eax,26 ; #EOF |
||
272 | mov ecx,253 |
||
273 | cld |
||
274 | repne scasb ; skip Copyright |
||
275 | test ecx,ecx |
||
276 | jz .fail |
||
277 | dps2 '3' |
||
278 | cmp edx,[edi+2] ; FontName |
||
279 | jne .fail |
||
280 | dps2 '4' |
||
281 | movzx ecx,word[edi] ; HeaderSize |
||
282 | sub ebx,ecx ; Filesize-Headersize |
||
283 | movzx eax,word[edi+6] ; FontSize |
||
284 | cmp eax,ebx |
||
285 | jb .fail ; file truncated |
||
286 | add ecx,[.dest] |
||
287 | dps2 '5' |
||
288 | cmp byte[ecx],'+' ; ParPrefix |
||
289 | jne .fail |
||
290 | ; font is valid, let's fill parameter table |
||
291 | dps2 '>' |
||
292 | mov [esi],edx ; FontName |
||
293 | mov edx,eax |
||
294 | add eax,ecx |
||
295 | mov [esi+16],eax ; Font EOF |
||
296 | movzx eax,word[ecx+5] |
||
297 | add eax,ecx |
||
298 | mov [esi+12],eax |
||
299 | lea edi,[esi+4] ; edi->CharsCount |
||
300 | lea esi,[ecx+1] ; esi->ParPrefix+1 |
||
301 | xor eax,eax |
||
302 | lodsw |
||
303 | stosb ; CharsCount |
||
304 | inc esi |
||
305 | movsb ; FirstChar |
||
306 | add esi,3 |
||
307 | lodsw |
||
308 | stosb ; UpperMargin |
||
309 | movsb ; LowerMargin |
||
310 | add esi,5 ; esi->offsets |
||
311 | mov eax,[esi] |
||
312 | push edi ; edi->Widths |
||
313 | ; prepare moving data |
||
314 | add edi,12 ; edi->offsets |
||
315 | lea ecx,[edx-16] |
||
316 | rep movsb |
||
317 | pop edi ; edi->Widths |
||
318 | mov [edi+8],esi ; EOF |
||
319 | ; mov eax,[edi] |
||
320 | movzx ecx,byte[edi-4] ; CharsCount |
||
321 | lea eax,[edi+12+ecx*2] ; eax->widths |
||
322 | stosd ; edi->FirstData |
||
323 | add eax,ecx |
||
324 | stosd ; edi->EOF |
||
325 | mov eax,[esp] ; eax->fonts_count |
||
326 | inc byte[eax] ; increase font counter |
||
327 | movzx eax,byte[eax] |
||
328 | .cr_id: |
||
329 | add eax,0x3 ; create unique ID |
||
330 | shl eax,28 ; to easy use in color(ecx) |
||
331 | jmp .exit |
||
332 | .fail: |
||
333 | xor eax,eax |
||
334 | .exit: |
||
335 | mov [esp+28],eax |
||
336 | popa |
||
337 | ret |
||
338 | |||
339 | if ~ BGI_LEVEL eq KERNEL |
||
340 | .fontinfo: |
||
341 | dd 0 |
||
342 | dd 0 |
||
343 | .fsize dd 0 |
||
344 | .dest dd 0 |
||
345 | dd 0x10000 |
||
346 | db BGIFONT_PATH |
||
347 | .font db 'FONT.CHR',0 |
||
348 | else |
||
349 | .dest dd 0 |
||
350 | .font db 'FONT CHR' |
||
351 | .okflag db ' ',0 |
||
352 | end if |
||
353 | |||
354 | BGIfont_Coo: |
||
355 | ; y->word[txt.y1], x->word[txt.x1] |
||
356 | fild [txt.y1] ;y |
||
357 | fmul st0,st0; y*y |
||
358 | fild [txt.x1] ;x |
||
359 | fmul st0,st0; x*x |
||
360 | faddp ; x*x+y*y |
||
361 | fsqrt ; sqrt, angle |
||
362 | fild [txt.y1];y |
||
363 | fabs |
||
364 | fild [txt.x1] ; x |
||
365 | fabs |
||
366 | fpatan ; arctg(y/x) |
||
367 | .skip: |
||
368 | cmp [txt.x1],0 |
||
369 | jge .xplus |
||
370 | fchs |
||
371 | fadd st0,st3 |
||
372 | .xplus: |
||
373 | cmp [txt.y1],0 |
||
374 | jge .yplus |
||
375 | fchs |
||
376 | .yplus: |
||
377 | fadd st0,st2 |
||
378 | fsincos |
||
379 | fmul st0,st2 |
||
380 | fiadd [txt.x0] |
||
381 | fistp [txt.x1] ; x=r*cos a |
||
382 | fmulp ; y=r*sin a,angle |
||
383 | fiadd [txt.y0] |
||
384 | fistp [txt.y1] |
||
385 | ret |
||
386 | |||
387 | _BGIfont_Freetext: |
||
388 | ; in: ebx-BGIfree structure |
||
389 | ; out: eax-new drawing coords |
||
390 | mov edx,[ebx] |
||
391 | call _BGIfont_GetID |
||
392 | test eax,eax |
||
393 | jnz .fexists |
||
394 | ret |
||
395 | .fexists: |
||
396 | pusha |
||
397 | fninit |
||
398 | fldpi |
||
399 | fld [pi180] |
||
400 | fimul dword[ebx+8] |
||
401 | fst [BGIangle] |
||
402 | mov esi,[ebx+28] |
||
403 | and esi,0xffffff |
||
404 | add esi,eax |
||
405 | mov eax,[ebx+32] |
||
406 | and [deform],0 |
||
407 | test eax,BGI_ITALIC |
||
408 | jz .norm |
||
409 | mov [deform],0.4 |
||
410 | .norm: |
||
411 | mov ebp,eax |
||
412 | or ebp,BGI_FREE |
||
413 | mov eax,[ebx+12] |
||
414 | mov [Xscale],eax |
||
415 | mov eax,[ebx+16] |
||
416 | mov [Yscale],eax |
||
417 | mov ecx,[ebx+20] |
||
418 | mov edx,ebp |
||
419 | and edx,BGI_FREE+BGI_VAMASK+BGI_HAMASK |
||
420 | add edx,[ebx+24] |
||
421 | mov eax,[ebx+4] |
||
422 | mov ebx,esi |
||
423 | add ebx,0x6000000 |
||
424 | mov [esp+4],edx |
||
425 | mov [esp+20],ecx |
||
426 | jmp txt |
||
427 | |||
428 | pi180 dd 0.017453 |
||
429 | |||
430 | _BGIfont_Outtext: |
||
431 | ; in: ebx-[x][y], ecx-color, edx-string, esi-length |
||
432 | pusha |
||
433 | mov ebp,esi |
||
434 | if ~ BGI_LEVEL eq KERNEL |
||
435 | mov eax,ebx |
||
436 | mov ebx,ecx |
||
437 | mov ecx,edx |
||
438 | mov edx,esi |
||
439 | end if |
||
440 | ; in: eax-[x][y], ebx-color, ecx-string, edx-length |
||
441 | txt: |
||
442 | if ~ BGI_LEVEL eq KERNEL |
||
443 | if BGI_WINDOW_CLIP eq 1 |
||
444 | pusha |
||
445 | mov eax,9 |
||
446 | mov ebx,BGI_PRC_INFO |
||
447 | mov ecx,-1 |
||
448 | int 0x40 |
||
449 | popa |
||
450 | end if |
||
451 | end if |
||
452 | mov [.y0],ax |
||
453 | shr eax,16 |
||
454 | mov [.x0],ax |
||
455 | mov ecx,ebx ; color |
||
456 | and ebx,0xfffffff |
||
457 | mov [.color],ebx |
||
458 | call BGIfont_get2head |
||
459 | test edi,edi |
||
460 | jz .exit |
||
461 | mov ecx,[esp+4]; str length |
||
462 | mov esi,[esp+20]; str ptr |
||
463 | movzx eax,byte[edi+5] |
||
464 | push ecx |
||
465 | and ecx,0xff |
||
466 | jnz .lenok |
||
467 | add esp,4 |
||
468 | jmp .ex2 |
||
469 | .lenok: |
||
470 | pusha |
||
471 | push dword[txt.y0] |
||
472 | and dword[txt.y0],0 |
||
473 | xor edx,edx |
||
474 | mov ebx,[edi+8] |
||
475 | .next: |
||
476 | call txt.BGIfont_GetChar |
||
477 | movzx eax,byte[ebx+eax] |
||
478 | add edx,eax |
||
479 | loop .next |
||
480 | mov ecx,edx ; ecx - x size |
||
481 | movzx dx,byte[edi+6] |
||
482 | mov [BGIheight],dx |
||
483 | mov ebx,[esp+36] |
||
484 | and ebx,BGI_HAMASK |
||
485 | cmp ebx,BGI_HARIGHT |
||
486 | je .nova |
||
487 | ja .subv |
||
488 | xor ecx,ecx |
||
489 | jmp .nova |
||
490 | .subv: |
||
491 | shr cx,1 |
||
492 | .nova: |
||
493 | mov ebx,[esp+36] |
||
494 | and ebx,BGI_VAMASK |
||
495 | cmp ebx,BGI_VATOP |
||
496 | je .def |
||
497 | ja .subh |
||
498 | xor edx,edx |
||
499 | jmp .def |
||
500 | .subh: |
||
501 | shr dx,1 |
||
502 | .def: |
||
503 | call txt.BGIfont_Deform |
||
504 | pop dword[txt.y0] |
||
505 | popa |
||
506 | pop ebx |
||
507 | mov ax,[txt.y1] |
||
508 | sub [txt.y0],ax |
||
509 | mov ax,[txt.x1] |
||
510 | sub [txt.x0],ax |
||
511 | xor eax,eax |
||
512 | cld |
||
513 | .mloop: |
||
514 | push [.y0] |
||
515 | pop [.y] |
||
516 | push [.x0] |
||
517 | pop [.x] |
||
518 | call .BGIfont_GetChar |
||
519 | push esi |
||
520 | lea esi,[edi+20] ; offset |
||
521 | movzx edx,word[esi+eax*2] ; ofs1 |
||
522 | add edx,[edi+12] |
||
523 | inc eax |
||
524 | cmp al,[edi+4] |
||
525 | je .eof |
||
526 | movzx eax,word[esi+eax*2]; ofs2 |
||
527 | add eax,[edi+12] |
||
528 | jmp .prc_vec |
||
529 | .eof: |
||
530 | mov eax,[edi+16] ; ofs2=eof |
||
531 | .prc_vec: ; edx-vec cmd ifs, eax-cmd limit |
||
532 | mov [.vec_end],eax |
||
533 | push ecx |
||
534 | .vec_loop: |
||
535 | mov ax,word[edx] |
||
536 | push edx |
||
537 | mov ecx,eax |
||
538 | and eax,0x8080 ; op |
||
539 | and ecx,0x7f ; xx |
||
540 | mov edx,[edx+1] |
||
541 | and edx,0x7f ; yy |
||
542 | cmp edx,63 |
||
543 | jbe .positive |
||
544 | sub edx,128 ; yy-=128 |
||
545 | .positive: |
||
546 | cmp ecx,63 |
||
547 | jbe .positive2 |
||
548 | sub ecx,128 ; xx-=128 |
||
549 | .positive2: |
||
550 | call .BGIfont_Deform |
||
551 | cmp eax,0x8080 |
||
552 | jne .noline |
||
553 | test ebp,BGI_NODRAW |
||
554 | jnz .noline |
||
555 | ; draw vector |
||
556 | if ~ BGI_LEVEL eq KERNEL |
||
557 | push eax |
||
558 | mov ebx,dword[.x1] |
||
559 | mov ecx,dword[.y1] |
||
560 | if BGI_WINDOW_CLIP eq 1 |
||
561 | movzx eax,[.x] |
||
562 | cmp eax,dword[BGI_PRC_INFO+42] |
||
563 | ja .nobold |
||
564 | movzx eax,[.y] |
||
565 | cmp eax,dword[BGI_PRC_INFO+46] |
||
566 | ja .nobold |
||
567 | xor eax,eax |
||
568 | cmp ax,bx |
||
569 | jg .nobold |
||
570 | cmp ax,cx |
||
571 | jg .nobold |
||
572 | end if |
||
573 | mov edx,[.color] |
||
134 | diamond | 574 | ; \begin{diamond}[18.08.2006] |
575 | ; starting from K0530 kernel interprets flag 0x1000000 as |
||
576 | ; negate existing pixels colors, disregarding passed color |
||
577 | ; we do not want this |
||
578 | and edx, 0xFFFFFF |
||
579 | ; \end{diamond}[18.08.2006] |
||
31 | halyavin | 580 | mov eax,38 |
581 | int 0x40 |
||
582 | test ebp,BGI_BOLD |
||
583 | jz .nobold |
||
584 | test ebp,BGI_FREE |
||
585 | jnz .free5 |
||
586 | .free5: |
||
587 | add ebx,1 shl 16+1 |
||
588 | int 0x40 |
||
589 | .nobold: |
||
590 | pop eax |
||
591 | else |
||
592 | pusha |
||
593 | mov eax,dword[.x1] |
||
594 | mov ebx,dword[.y1] |
||
595 | mov ecx,[.color] |
||
596 | ; call syscall_drawline |
||
597 | test dword[esp+8],BGI_BOLD |
||
598 | jz .nobold |
||
599 | add eax,1 shl 16+1 |
||
600 | ; call syscall_drawline |
||
601 | .nobold: |
||
602 | popa |
||
603 | end if |
||
604 | .noline: |
||
605 | pop edx |
||
606 | test eax,eax |
||
607 | je .eovecs ; op=0 |
||
608 | push [.y1] |
||
609 | pop [.y] |
||
610 | push [.x1] |
||
611 | pop [.x] |
||
612 | add edx,2 |
||
613 | cmp edx,[.vec_end] |
||
614 | jb .vec_loop |
||
615 | .eovecs: |
||
616 | pop ecx esi |
||
617 | push [.y] |
||
618 | pop [.y0] |
||
619 | push [.x] |
||
620 | pop [.x0] |
||
621 | loop .mloop1 |
||
622 | jmp .exit |
||
623 | .mloop1: |
||
624 | jmp .mloop |
||
625 | .exit: |
||
626 | mov eax,dword[.y0] |
||
627 | mov [esp+28],eax |
||
628 | .ex2: |
||
629 | popa |
||
630 | ret |
||
631 | |||
632 | .BGIfont_Deform: |
||
633 | test ebp,BGI_FREE |
||
634 | jnz .free0 |
||
635 | movzx ebx,byte[.color+3] ;ebx=scale |
||
636 | imul ecx,ebx |
||
637 | add ecx,2 |
||
638 | shr ecx,2 |
||
639 | imul edx,ebx |
||
640 | add edx,2 |
||
641 | shr edx,2 |
||
642 | neg edx |
||
643 | mov [.x1],cx |
||
644 | mov [.y1],dx |
||
645 | jmp .add |
||
646 | .free0: |
||
647 | mov [.x1],cx |
||
648 | mov [.y1],dx |
||
649 | fild [.y1] |
||
650 | fld st0 |
||
651 | fmul [Yscale] |
||
652 | fchs |
||
653 | fistp [.y1] |
||
654 | fmul [deform] |
||
655 | fiadd [.x1] |
||
656 | fmul [Xscale] |
||
657 | fistp [.x1] |
||
658 | cmp [BGIangle],0 |
||
659 | je .add |
||
660 | call BGIfont_Coo |
||
661 | jmp .eax |
||
662 | .add: |
||
663 | mov cx,[.x0] |
||
664 | add [.x1],cx |
||
665 | mov cx,[.y0] |
||
666 | add [.y1],cx |
||
667 | .eax: |
||
668 | ret |
||
669 | |||
670 | .BGIfont_GetChar: |
||
671 | ; in: esi -> string; edi -> BGIrec |
||
672 | ; out: esi -> next char; al - char obtained |
||
673 | lodsb ; al - char from str |
||
674 | sub al,[edi+5] |
||
675 | jb .out |
||
676 | cmp al,[edi+4] |
||
677 | jb .in |
||
678 | .out: |
||
679 | xor al,al ; al - 1st symbol available |
||
680 | .in: |
||
681 | ret |
||
682 | |||
683 | .y0 dw ? |
||
684 | .x0 dw ? |
||
685 | |||
686 | .x1 dw ? |
||
687 | .x dw ? |
||
688 | .y1 dw ? |
||
689 | .y dw ? |
||
690 | |||
691 | .color dd ? |
||
692 | .vec_end dd ? |
||
693 | BGIfont_Ptr dd 0 |
||
694 | BGIheight dw ? |
||
695 | deform dd ? |
||
696 | BGIangle dd ? |
||
697 | Xscale dd ? |
||
698 | Yscale dd ? |