Subversion Repositories Kolibri OS

Rev

Rev 6111 | Rev 6126 | Go to most recent revision | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 6111 Rev 6113
Line 1... Line -...
1 
;
 - 
 
2 
; Макрос DRAW_LINE имеет параметр code, от которого зависит
 - 
 
3 
; будет ли включен код или объявлены переменные.
 - 
 
4 
; В версии на C++ параметра code нет, потому что там переменные
 - 
 
5 
; можно ставить в любом месте функции, в asm версии такое не проходит.
 - 
 
6 
;
 - 
 
Line 7... Line 1...
7 
 
 1 
INTERP_Z equ 1
Line 8... Line 2...
8 
INTERP_Z equ 1
 2 
 
9 
 
 3 
macro DRAW_INIT
Line 234... Line 228...
234 
	add [t],eax
 228 
}
235 
}
 229 
 
Line 236... Line 230...
236 
 
 230 
DRAW_LINE_M equ 1
Line 237... Line 231...
237 
DRAW_LINE_M equ 1
 231 
 
238 
 
 232 
macro DRAW_LINE
239 
macro DRAW_LINE code
 233 
{
240 
{
 - 
 
241 
if TGL_FEATURE_RENDER_BITS eq 24
 - 
 
242 
if code eq 0
 - 
 
243 
	s dd ? ;uint
 - 
 
244 
	t dd ? ;uint
 - 
 
245 
	dsdx dd ? ;int
 - 
 
246 
	dtdx dd ? ;int
 - 
 
247 
	fz dd ? ;float
 - 
 
248 
	zinv dd ? ;float
 - 
 
249 
end if
 234 
if TGL_FEATURE_RENDER_BITS eq 24
250 
if code eq 1
 235 
	mov eax,[x2]
- 
 
 236 
	sar eax,16
251 
	mov eax,[x2]
 237 
	mov edi,[x1]
252 
	sar eax,16
 238 
	sub eax,edi
253 
	sub eax,[x1]
 239 
	mov [n],eax ;n = (x2 >> 16) - x1
254 
	mov [n],eax ;n = (x2 >> 16) - x1
 240 
fld1
255 
fld1
 241 
	fild dword[z1]
256 
	fild dword[z1]
 242 
	fst dword[f_z] ;fz = (float)z1
257 
	fst dword[fz] ;fz = (float)z1
 243 
	;fld1
258 
	;fld1
 244 
	fdivp
259 
	fdivp
 - 
 
260 
	fstp dword[zinv] ;zinv = 1.0 / fz
 245 
	fstp dword[zinv] ;zinv = 1.0 / fz
261 
	mov edi,[x1]
 246 
	imul edi,PSZB
262 
	imul edi,PSZB
 247 
	add edi,[pp1] ;pp = (pp1 + x1 * PSZB)
263 
	add edi,[pp1] ;pp = (pp1 + x1 * PSZB)
 248 
	mov eax,[x1]
264 
	mov eax,[x1]
 249 
	shl eax,1
Line 290... Line 275...
290 
		fchs
 275 
		fadd dword[dtzdx]
291 
		fadd dword[dtzdx]
 276 
		fmul dword[zinv]
292 
		fmul dword[zinv]
 277 
		fistp dword[dtdx] ;dtdx = (int)( (dtzdx - tt*fdzdx)*zinv )
293 
		fistp dword[dtdx] ;dtdx = (int)( (dtzdx - tt*fdzdx)*zinv )
 278 
fld1
294 
fld1
 279 
		fld dword[f_z]
295 
		fld dword[fz]
 280 
		fadd dword[fndzdx]
296 
		fadd dword[fndzdx]
 281 
		fst dword[f_z] ;fz += fndzdx
297 
		fst dword[fz] ;fz += fndzdx
 282 
		;fld1
298 
		;fld1
 283 
		fdivp
299 
		fdivp
 284 
		fstp dword[zinv] ;zinv = 1.0 / fz
300 
		fstp dword[zinv] ;zinv = 1.0 / fz
 285 
		PUT_PIXEL 0
301 
		PUT_PIXEL 0
 286 
		PUT_PIXEL 1
302 
		PUT_PIXEL 1
 287 
		PUT_PIXEL 2
Line 342... Line 327...
342 
		add edi,PSZB ;pp += PSZB
 327 
		dec dword[n]
343 
		dec dword[n]
 328 
		jmp .cycle_3
344 
		jmp .cycle_3
 329 
	.cycle_3_end:
345 
	.cycle_3_end:
 330 
end if
346 
end if
 331 
}
347 
end if
 - 
 
348 
}
 332 
 
Line 349... Line 333...
349 
 
 333 
align 4
350 
align 4
 334 
proc ZB_fillTriangleMappingPerspective, zb:dword, p0:dword, p1:dword, p2:dword
351 
proc ZB_fillTriangleMappingPerspective, zb:dword, p0:dword, p1:dword, p2:dword
 335 
locals
352 
locals
 336 
	texture dd ? ;PIXEL *
353 
	texture dd ? ;PIXEL *
 337 
	fdzdx dd ? ;float
354 
	fdzdx dd ? ;float
 338 
	fndzdx dd ? ;float
355 
	fndzdx dd ? ;float
 339 
	ndszdx dd ? ;float
356 
	ndszdx dd ? ;float
 340 
	ndtzdx dd ? ;float
- 
 
 341 
	zinv dd ? ;float
- 
 
 342 
	f_z dd ? ;float - переменная отвечающая за геометрию текстуры
357 
	ndtzdx dd ? ;float
 343 
include 'ztriangle.inc'
Line 358... Line 344...
358 
include 'ztriangle.inc'
 344 
 
Line 359... Line 345...
359 
 
 345 
end if
Line 375... Line 361...
375 
}
 361 
 
Line 376... Line 362...
376 
 
 362 
macro PUT_PIXEL _a
377 
macro PUT_PIXEL _a
 363 
{
378 
{
 364 
local .end_0
379 
local .end_0
 - 
 
380 
;   int s,t;
 365 
	mov eax,[z]
381 
	mov eax,[z]
 366 
	shr eax,ZB_POINT_Z_FRAC_BITS
382 
	shr eax,ZB_POINT_Z_FRAC_BITS
 367 
	mov [zz],eax
383 
	mov [zz],eax
 368 
	mov ebx,[pz]
384 
	mov ebx,[pz]
 369 
	cmp ax,word[ebx+2*_a] ;if (zz >= pz[_a])