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

Rev	Author	Line No.	Line
1894	serge	1
		2
		3
		4	.dc.ymin rd 1 ; 4
		5	.dc.xmax rd 1 ; 8
		6	.dc.ymax rd 1 ; 12
		7
		8	.sc:
		9	.sc.xmin rd 1 ; 16
		10
		11	.sc.xmax rd 1 ; 24
		12	.sc.ymax rd 1 ; 28
		13
		14	.dst_x rd 1 ; 32
		15	.dst_y rd 1 ; 36
		16
		17	.src_y rd 1 ; 44
		18	.w rd 1 ; 48
		19	.h rd 1 ; 52
		20
		21	.bitmap rd 1 ; 56
		22	.stride rd 1 ; 60
		23
		24	}
		25
		26
		27	BLITTER BLITTER
		28
		29
		30
		31	align 4
		32
		33
		34	push ebx
		35
		36	cmp edx, [eax]
		37	jl .L2
		38	xor ebx, ebx
		39	cmp edx, [eax+8]
		40	setg bl
		41	sal ebx, 2
		42	.L2:
		43	cmp ecx, [eax+4]
		44	jge .L3
		45	or ebx, 1
		46	jmp .L4
		47
		48	.L3:
		49	cmp ecx, [eax+12]
		50
		51	or ebx, 2
		52	.L4:
		53	mov eax, ebx
		54	pop ebx
		55	ret
		56
		57	align 4
		58	block_clip:
		59
		60	push edi
		61	push esi
		62	push ebx
		63	sub esp, 4
		64
		65	mov ebx, eax
		66	mov [esp], edx
		67
		68	mov ecx, [ecx]
		69	mov edx, [edx]
		70	call __L1OutCode
		71
		72	mov esi, eax
		73	mov edx, [esp+28]
		74
		75	.L21:
		76	mov eax, [esp+24]
		77	mov edx, [eax]
		78	mov eax, ebx
		79	call __L1OutCode
		80
		81	mov edi, eax
		82	.L20:
		83
		84	and eax, esi
		85	jne .L9
		86	cmp esi, edi
		87	je .L9
		88	test esi, esi
		89	jne .L10
		90	test edi, 1
		91	je .L11
		92	mov eax, [ebx+4]
		93	jmp .L25
		94	.L11:
		95	test edi, 2
		96	je .L13
		97	mov eax, [ebx+12]
		98	.L25:
		99	mov edx, [esp+28]
		100	jmp .L22
		101	.L13:
		102	test edi, 4
		103	je .L14
		104	mov eax, [ebx+8]
		105	jmp .L26
		106	.L14:
		107	and edi, 8
		108	je .L12
		109	mov eax, [ebx]
		110	.L26:
		111	mov edx, [esp+24]
		112	.L22:
		113	mov [edx], eax
		114	.L12:
		115	mov eax, [esp+28]
		116	mov ecx, [eax]
		117	jmp .L21
		118	.L10:
		119	test esi, 1
		120	je .L16
		121	mov eax, [ebx+4]
		122	jmp .L23
		123	.L16:
		124	test esi, 2
		125	je .L18
		126	mov eax, [ebx+12]
		127	.L23:
		128	mov [ebp+0], eax
		129	jmp .L17
		130	.L18:
		131	test esi, 4
		132	je .L19
		133	mov eax, [ebx+8]
		134	jmp .L24
		135	.L19:
		136	and esi, 8
		137	je .L17
		138	mov eax, [ebx]
		139	.L24:
		140	mov edx, [esp]
		141	mov [edx], eax
		142	.L17:
		143	mov ecx, [ebp+0]
		144	mov eax, [esp]
		145	mov edx, [eax]
		146	mov eax, ebx
		147	call __L1OutCode
		148	mov esi, eax
		149	jmp .L20
		150	.L9:
		151	add esp, 4
		152	pop ebx
		153	pop esi
		154	pop edi
		155	pop ebp
		156	ret
		157
		158	align 4
		159	blit_clip:
		160
		161	.sx0 equ 36
		162	.sy0 equ 32
		163
		164	.sy1 equ 24
		165
		166	.dx0 equ 20
		167	.dy0 equ 16
		168
		169	.dy1 equ 8
		170
		171
		172	push edi
		173
		174
		175	sub esp, 40
		176
		177	mov ebx, ecx
		178	mov edx, [ecx+BLITTER.src_x]
		179
		180	mov eax, [ecx+BLITTER.src_y]
		181	mov [esp+.sy0], eax
		182	add edx, [ecx+BLITTER.w]
		183	dec edx
		184	mov [esp+.sx1], edx
		185	add eax, [ecx+BLITTER.h]
		186	dec eax
		187	mov [esp+.sy1], eax
		188
		189	lea ecx, [esp+.sy0]
		190	lea edx, [esp+.sx0]
		191
		192	lea esi, [esp+.sy1]
		193
		194	mov [esp+4], esi
		195	lea esi, [esp+.sx1]
		196
		197	call block_clip
		198
		199	mov esi, 1
		200	test eax, eax
		201
		202
		203	mov edi, [esp+.sx0]
		204	mov edx, [ebx+BLITTER.dst_x]
		205
		206	sub edx, [ebx+BLITTER.src_x]
		207	mov [esp+.dx0], edx
		208
		209	mov ecx, [esp+.sy0]
		210	mov eax, [ebx+BLITTER.dst_y]
		211
		212	sub eax, [ebx+BLITTER.src_y]
		213	mov [esp+.dy0], eax
		214	sub edx, edi
		215	add edx, [esp+.sx1]
		216	mov [esp+.dx1], edx
		217
		218	sub eax, ecx
		219	add eax, [esp+.sy1]
		220
		221
		222	lea ecx, [esp+.dy0]
		223	lea edx, [esp+.dx0]
		224
		225	mov [esp+4], eax
		226	lea eax, [esp+.dx1]
		227	mov [esp], eax
		228	mov eax, ebx
		229	call block_clip
		230	test eax, eax
		231	jne .L28
		232
		233	mov edx, [esp+.dx0]
		234	mov eax, [esp+.dx1]
		235
		236	sub eax, edx
		237	mov [ebx+BLITTER.w], eax
		238
		239	mov eax, [esp+.dy0]
		240	mov ecx, [esp+.dy1]
		241
		242	sub ecx, eax
		243	mov [ebx+BLITTER.h], ecx
		244
		245	mov ecx, [ebx+BLITTER.src_x]
		246	add ecx, edx
		247
		248	mov [ebx+BLITTER.src_x], ecx
		249
		250	mov ecx, [ebx+BLITTER.src_y]
		251	add ecx, eax
		252
		253	mov [ebx+BLITTER.src_y], ecx
		254	mov [ebx+BLITTER.dst_x], edx
		255	mov [ebx+BLITTER.dst_y], eax
		256	xor esi, esi
		257	.L28:
		258	mov eax, esi
		259	add esp, 40
		260	pop ebx
		261	pop esi
		262	pop edi
		263
		264
		265	purge .sx0
		266
		267
		268	purge .sy1
		269
		270	purge .dx0
		271	purge .dy0
		272
		273	purge .dy1
		274
		275	ret
		276
		277
		278
		279
		280
		281
		282	push ebp
		283
		284	push esi
		285	push ebx
		286	sub esp, 72
		287
		288	mov eax, [TASK_BASE]
		289	mov ebx, [eax-twdw + WDATA.box.width]
		290
		291
		292	xor eax, eax
		293
		294
		295	mov [esp+BLITTER.dc.ymin], eax
		296
		297	mov [esp+BLITTER.dc.ymax], edx
		298
		299	mov [esp+BLITTER.sc.xmin], eax
		300	mov [esp+BLITTER.sc.ymin], eax
		301
		302	dec eax
		303	mov [esp+BLITTER.sc.xmax], eax
		304	mov eax, [ecx+28]
		305	dec eax
		306	mov [esp+BLITTER.sc.ymax], eax
		307
		308	mov eax, [ecx]
		309	mov [esp+BLITTER.dst_x], eax
		310
		311	mov [esp+BLITTER.dst_y], eax
		312
		313	mov eax, [ecx+16]
		314	mov [esp+BLITTER.src_x], eax
		315
		316	mov [esp+BLITTER.src_y], eax
		317	mov eax, [ecx+8]
		318	mov [esp+BLITTER.w], eax
		319	mov eax, [ecx+12]
		320	mov [esp+BLITTER.h], eax
		321
		322
		323	mov eax, [ecx+32]
		324
		325
		326	mov [esp+60], eax
		327
		328	mov ecx, esp
		329	call blit_clip
		330
		331	jne .L57
		332
		333	inc [mouse_pause]
		334	call [_display.disable_mouse]
		335
		336	mov eax, [TASK_BASE]
		337
		338
		339	mov ebp, [esp+BLITTER.dst_y]
		340
		341	add ebp, [eax-twdw + WDATA.box.top]
		342	mov edi, ebp
		343
		344	imul edi, [_display.pitch]
		345	imul ebp, [_display.width]
		346
		347	add ebp, [_WinMapAddress]
		348
		349	mov eax, [esp+BLITTER.src_y]
		350	imul eax, [esp+BLITTER.stride]
		351
		352	lea esi, [eax+esi*4]
		353	add esi, [esp+BLITTER.bitmap]
		354
		355	mov ecx, [esp+BLITTER.h]
		356	mov edx, [esp+BLITTER.w]
		357
		358	test ecx, ecx ;FIXME check clipping
		359	jz .L57
		360
		361	test edx, edx
		362	jz .L57
		363
		364	cmp [_display.bpp], 32
		365	jne .core_24
		366
		367	lea edi, [edi+ebx*4]
		368
		369
		370
		371
		372	.outer32:
		373
		374
		375	align 4
		376	.inner32:
		377
		378	jne @F
		379
		380	mov eax, [esi+ecx*4]
		381	mov [LFB_BASE+edi+ecx*4], eax
		382
		383	inc ecx
		384	dec edx
		385	jnz .inner32
		386
		387	add esi, [esp+BLITTER.stride]
		388	add edi, [_display.pitch]
		389
		390
		391	mov edx, [esp+BLITTER.w]
		392	dec [esp+BLITTER.h]
		393
		394
		395	.done:
		396	dec [mouse_pause]
		397
		398	.L57:
		399	add esp, 72
		400	pop ebx
		401	pop esi
		402	pop edi
		403	pop ebp
		404	ret
		405
		406	.core_24:
		407	lea ebx, [ebx+ebx*2]
		408
		409	mov ebx, [CURRENT_TASK]
		410
		411	align 4
		412	.outer24:
		413
		414	xor ecx, ecx
		415
		416	align 4
		417	.inner24:
		418
		419	jne @F
		420
		421	mov eax, [esi+ecx*4]
		422
		423
		424	mov [edi+ecx], ax
		425
		426	mov [edi+ecx+2], al
		427	@@:
		428	mov edi, [esp+64]
		429	inc ecx
		430	dec edx
		431	jnz .inner24
		432
		433	add esi, [esp+BLITTER.stride]
		434	add edi, [_display.pitch]
		435
		436
		437	mov edx, [esp+BLITTER.w]
		438	dec [esp+BLITTER.h]
		439
		440
		441	jmp .done
		442

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(root)/kernel/trunk/video/blitter.inc – Rev 2089