WebSVN – Kolibri OS – Blame – /kernel/trunk/video/blitter.inc

Rev	Author	Line No.	Line
2455	mario79	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
		3	;; Copyright (C) KolibriOS team 2011-2012. All rights reserved. ;;
		4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
		6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1894	serge	7
2384	hidnplayr	8	struct BLITTER_BLOCK
		9	xmin dd ?
		10	ymin dd ?
		11	xmax dd ?
		12	ymax dd ?
		13	ends
1894	serge	14
		15
2384	hidnplayr	16	struct BLITTER
2988	Serge	17	dc RECT
		18	sc RECT
2384	hidnplayr	19	dst_x dd ? ; 32
		20	dst_y dd ? ; 36
		21	src_x dd ? ; 40
		22	src_y dd ? ; 44
		23	w dd ? ; 48
		24	h dd ? ; 52
1894	serge	25
2384	hidnplayr	26	bitmap dd ? ; 56
		27	stride dd ? ; 60
		28	ends
1894	serge	29
		30
2988	Serge	31
1894	serge	32	align 4
2988	Serge	33	block_clip:
		34	;esi= clip RECT ptr
		35	;edi= RECT ptr
		36	;return code:
		37	;eax= 0 - draw, 1 - don't draw
1894	serge	38
2288	clevermous	39	push ebx
1894	serge	40
2988	Serge	41	mov eax, [edi+RECT.left]
		42	mov ebx, [edi+RECT.right]
		43	mov ecx, [esi+RECT.left] ;clip.left
		44	mov edx, [esi+RECT.right] ;clip.right
1894	serge	45
2988	Serge	46	cmp eax, edx ;left >= clip.right
		47	jge .fail
1894	serge	48
2988	Serge	49	cmp ebx, ecx ;right < clip.left
		50	jl .fail
1894	serge	51
2988	Serge	52	cmp eax, ecx ;left >= clip.left
		53	jae @F
1894	serge	54
2988	Serge	55	mov eax, ecx
		56	@@:
		57	mov [edi+RECT.left], eax
		58
		59	cmp ebx, edx ;right <= clip.right
		60	jle @f
		61	mov ebx, edx
		62	@@:
		63	mov [edi+RECT.right], ebx
		64
		65	mov eax, [edi+RECT.top]
		66	mov ebx, [edi+RECT.bottom]
		67	mov ecx, [esi+RECT.top] ;clip.top
		68	mov edx, [esi+RECT.bottom] ;clip.bottom
		69
		70	cmp eax, edx ;top >= clip.bottom
		71	jge .fail
		72
		73	cmp ebx, ecx ;bottom < clip.top
		74	jl .fail
		75
		76	cmp eax, ecx ;top >= clip.top
		77	jae @F
		78
		79	mov eax, ecx
		80	@@:
		81	mov [edi+RECT.top], eax
		82
		83	cmp ebx, edx ;bottom <= clip.bottom
		84	jle @f
		85	mov ebx, edx
		86	@@:
		87	mov [edi+RECT.bottom], ebx
2288	clevermous	88	pop ebx
2988	Serge	89	xor eax, eax
1894	serge	90	ret
2988	Serge	91	.fail:
		92	pop ebx
		93	mov eax, 1
		94	ret
1894	serge	95
2988	Serge	96
1894	serge	97	align 4
		98	blit_clip:
		99
2988	Serge	100	.sx0 equ 8
		101	.sy0 equ 12
		102	.sx1 equ 16
		103	.sy1 equ 20
1894	serge	104
2988	Serge	105	.dx0 equ 24
		106	.dy0 equ 28
		107	.dx1 equ 32
		108	.dy1 equ 36
1894	serge	109
		110
2288	clevermous	111	push edi
		112	push esi
		113	push ebx
		114	sub esp, 40
1894	serge	115
2288	clevermous	116	mov ebx, ecx
		117	mov edx, [ecx+BLITTER.src_x]
		118	mov [esp+.sx0], edx
		119	mov eax, [ecx+BLITTER.src_y]
		120	mov [esp+.sy0], eax
		121	add edx, [ecx+BLITTER.w]
2988	Serge	122	add eax, [ecx+BLITTER.h]
2288	clevermous	123	mov [esp+.sx1], edx
		124	mov [esp+.sy1], eax
1894	serge	125
2988	Serge	126	lea edi, [esp+.sx0]
		127	lea esi, [ebx+BLITTER.sc]
1894	serge	128
2288	clevermous	129	call block_clip
2988	Serge	130	test eax, eax
2288	clevermous	131	mov esi, 1
2988	Serge	132	jnz .done
1894	serge	133
2288	clevermous	134	mov edi, [esp+.sx0]
		135	mov edx, [ebx+BLITTER.dst_x]
		136	add edx, edi
		137	sub edx, [ebx+BLITTER.src_x]
		138	mov [esp+.dx0], edx
1894	serge	139
2288	clevermous	140	mov ecx, [esp+.sy0]
		141	mov eax, [ebx+BLITTER.dst_y]
		142	add eax, ecx
		143	sub eax, [ebx+BLITTER.src_y]
		144	mov [esp+.dy0], eax
2988	Serge	145
2288	clevermous	146	sub edx, edi
		147	add edx, [esp+.sx1]
		148	mov [esp+.dx1], edx
1894	serge	149
2288	clevermous	150	sub eax, ecx
		151	add eax, [esp+.sy1]
		152	mov [esp+.dy1], eax
1894	serge	153
2988	Serge	154	lea edi, [esp+.dx0]
		155	lea esi, [ebx+BLITTER.dc]
2288	clevermous	156	call block_clip
		157	test eax, eax
2988	Serge	158	mov esi, 1
		159	jnz .done
1894	serge	160
2288	clevermous	161	mov edx, [esp+.dx0]
		162	mov eax, [esp+.dx1]
		163	sub eax, edx
		164	mov [ebx+BLITTER.w], eax
1894	serge	165
2288	clevermous	166	mov eax, [esp+.dy0]
		167	mov ecx, [esp+.dy1]
		168	sub ecx, eax
		169	mov [ebx+BLITTER.h], ecx
1894	serge	170
2288	clevermous	171	mov ecx, [ebx+BLITTER.src_x]
		172	add ecx, edx
		173	sub ecx, [ebx+BLITTER.dst_x]
		174	mov [ebx+BLITTER.src_x], ecx
1894	serge	175
2288	clevermous	176	mov ecx, [ebx+BLITTER.src_y]
		177	add ecx, eax
		178	sub ecx, [ebx+BLITTER.dst_y]
		179	mov [ebx+BLITTER.src_y], ecx
		180	mov [ebx+BLITTER.dst_x], edx
		181	mov [ebx+BLITTER.dst_y], eax
		182	xor esi, esi
2988	Serge	183	.done:
2288	clevermous	184	mov eax, esi
		185	add esp, 40
		186	pop ebx
		187	pop esi
		188	pop edi
1894	serge	189
		190
		191	purge .sx0
		192	purge .sy0
		193	purge .sx1
		194	purge .sy1
		195
		196	purge .dx0
		197	purge .dy0
		198	purge .dx1
		199	purge .dy1
		200
		201	ret
		202
		203	align 4
		204	blit_32:
2288	clevermous	205	push ebp
		206	push edi
		207	push esi
		208	push ebx
		209	sub esp, 72
1894	serge	210
2288	clevermous	211	mov eax, [TASK_BASE]
		212	mov ebx, [eax-twdw + WDATA.box.width]
		213	mov edx, [eax-twdw + WDATA.box.height]
2988	Serge	214	inc ebx
		215	inc edx
1894	serge	216
2288	clevermous	217	xor eax, eax
1894	serge	218
2988	Serge	219	mov [esp+BLITTER.dc.left], eax
		220	mov [esp+BLITTER.dc.top], eax
		221	mov [esp+BLITTER.dc.right], ebx
		222	mov [esp+BLITTER.dc.bottom], edx
1894	serge	223
2988	Serge	224	mov [esp+BLITTER.sc.left], eax
		225	mov [esp+BLITTER.sc.top], eax
2288	clevermous	226	mov eax, [ecx+24]
2988	Serge	227
		228	mov [esp+BLITTER.sc.right], eax
2288	clevermous	229	mov eax, [ecx+28]
1894	serge	230
2988	Serge	231	mov [esp+BLITTER.sc.bottom], eax
		232
2288	clevermous	233	mov eax, [ecx]
		234	mov [esp+BLITTER.dst_x], eax
		235	mov eax, [ecx+4]
		236	mov [esp+BLITTER.dst_y], eax
1894	serge	237
2288	clevermous	238	mov eax, [ecx+16]
		239	mov [esp+BLITTER.src_x], eax
		240	mov eax, [ecx+20]
		241	mov [esp+BLITTER.src_y], eax
		242	mov eax, [ecx+8]
		243	mov [esp+BLITTER.w], eax
		244	mov eax, [ecx+12]
		245	mov [esp+BLITTER.h], eax
1894	serge	246
		247
2288	clevermous	248	mov eax, [ecx+32]
		249	mov [esp+56], eax
		250	mov eax, [ecx+36]
		251	mov [esp+60], eax
1894	serge	252
2288	clevermous	253	mov ecx, esp
		254	call blit_clip
		255	test eax, eax
		256	jne .L57
1894	serge	257
2288	clevermous	258	mov eax, [TASK_BASE]
1894	serge	259
2288	clevermous	260	mov ebx, [esp+BLITTER.dst_x]
		261	mov ebp, [esp+BLITTER.dst_y]
		262	add ebx, [eax-twdw + WDATA.box.left]
		263	add ebp, [eax-twdw + WDATA.box.top]
2430	mario79	264
		265	mov ecx, ebx
		266	add ecx, [esp+BLITTER.w]
		267	shl ecx, 16
		268	mov cx, bp
		269	add ecx, [esp+BLITTER.h]
		270
2288	clevermous	271	mov edi, ebp
1894	serge	272
2480	mario79	273	; imul edi, [_display.pitch]
		274	mov edi, [BPSLine_calc_area+edi*4]
2446	mario79	275	; imul ebp, [_display.width]
2480	mario79	276	mov ebp, [d_width_calc_area+ebp*4]
2446	mario79	277
2288	clevermous	278	add ebp, ebx
		279	add ebp, [_WinMapAddress]
1894	serge	280
2288	clevermous	281	mov eax, [esp+BLITTER.src_y]
		282	imul eax, [esp+BLITTER.stride]
		283	mov esi, [esp+BLITTER.src_x]
		284	lea esi, [eax+esi*4]
		285	add esi, [esp+BLITTER.bitmap]
1894	serge	286
2430	mario79	287	mov eax, ecx
2288	clevermous	288	mov ecx, [esp+BLITTER.h]
		289	mov edx, [esp+BLITTER.w]
1894	serge	290
2288	clevermous	291	test ecx, ecx ;FIXME check clipping
		292	jz .L57
1894	serge	293
2288	clevermous	294	test edx, edx
		295	jz .L57
1894	serge	296
2288	clevermous	297	cmp [_display.bpp], 32
		298	jne .core_24
1894	serge	299
2288	clevermous	300	lea edi, [edi+ebx*4]
1894	serge	301
2288	clevermous	302	mov ebx, [CURRENT_TASK]
1894	serge	303	align 4
		304	.outer32:
2288	clevermous	305	xor ecx, ecx
1894	serge	306
		307	align 4
		308	.inner32:
2288	clevermous	309	cmp [ebp+ecx], bl
2449	mario79	310	jne .skip
2430	mario79	311	;--------------------------------------
		312	push eax
		313	mov eax, [esi+ecx*4]
1894	serge	314
2448	mario79	315	; check for hardware cursor
2451	mario79	316	cmp [_display.select_cursor], select_cursor
		317	je @f
2448	mario79	318	cmp [_display.select_cursor], 0
		319	jne .no_mouseunder
		320	;--------------------------------------
		321	align 4
		322	@@:
2430	mario79	323	push ecx
		324
		325	mov ecx, [esp+4]
		326	ror ecx, 16
		327	sub ecx, edx
		328	rol ecx, 16
		329	sub ecx, [esp+BLITTER.h + 8]
		330
		331	; check mouse area for putpixel
		332	call [_display.check_mouse]
		333	pop ecx
2448	mario79	334	;--------------------------------------
		335	align 4
		336	.no_mouseunder:
2430	mario79	337	; store to real LFB
2288	clevermous	338	mov [LFB_BASE+edi+ecx*4], eax
2430	mario79	339	pop eax
		340	;--------------------------------------
		341	align 4
2449	mario79	342	.skip:
2288	clevermous	343	inc ecx
		344	dec edx
		345	jnz .inner32
1894	serge	346
2288	clevermous	347	add esi, [esp+BLITTER.stride]
		348	add edi, [_display.pitch]
		349	add ebp, [_display.width]
1894	serge	350
2288	clevermous	351	mov edx, [esp+BLITTER.w]
		352	dec [esp+BLITTER.h]
		353	jnz .outer32
1894	serge	354
		355	.done:
2453	mario79	356	; call [draw_pointer]
2988	Serge	357	; call __sys_draw_pointer
1894	serge	358	.L57:
2288	clevermous	359	add esp, 72
		360	pop ebx
		361	pop esi
		362	pop edi
		363	pop ebp
1894	serge	364	ret
		365
		366	.core_24:
2288	clevermous	367	lea ebx, [ebx+ebx*2]
		368	lea edi, [LFB_BASE+edi+ebx]
		369	mov ebx, [CURRENT_TASK]
1894	serge	370
		371	align 4
		372	.outer24:
2288	clevermous	373	mov [esp+64], edi
		374	xor ecx, ecx
1894	serge	375
		376	align 4
		377	.inner24:
2288	clevermous	378	cmp [ebp+ecx], bl
2449	mario79	379	jne .skip_1
2430	mario79	380	;--------------------------------------
		381	push eax
2288	clevermous	382	mov eax, [esi+ecx*4]
1894	serge	383
2288	clevermous	384	lea edi, [edi+ecx*2]
2430	mario79	385
2448	mario79	386	; check for hardware cursor
2451	mario79	387	cmp [_display.select_cursor], select_cursor
		388	je @f
2448	mario79	389	cmp [_display.select_cursor], 0
		390	jne .no_mouseunder_1
		391	;--------------------------------------
		392	align 4
		393	@@:
2430	mario79	394	push ecx
		395
		396	mov ecx, [esp+4]
		397	ror ecx, 16
		398	sub ecx, edx
		399	rol ecx, 16
		400	sub ecx, [esp+BLITTER.h + 8]
		401
		402	; check mouse area for putpixel
		403	call [_display.check_mouse]
		404	pop ecx
2448	mario79	405	;--------------------------------------
		406	align 4
		407	.no_mouseunder_1:
2288	clevermous	408	mov [edi+ecx], ax
		409	shr eax, 16
		410	mov [edi+ecx+2], al
2430	mario79	411
		412	pop eax
		413	;--------------------------------------
		414	align 4
2449	mario79	415	.skip_1:
2288	clevermous	416	mov edi, [esp+64]
		417	inc ecx
		418	dec edx
		419	jnz .inner24
1894	serge	420
2288	clevermous	421	add esi, [esp+BLITTER.stride]
		422	add edi, [_display.pitch]
		423	add ebp, [_display.width]
1894	serge	424
2288	clevermous	425	mov edx, [esp+BLITTER.w]
		426	dec [esp+BLITTER.h]
		427	jnz .outer24
1894	serge	428
2288	clevermous	429	jmp .done

Subversion Repositories Kolibri OS

(root)/kernel/trunk/video/blitter.inc – Rev 2988