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	mov eax, ebx
		71	call __L1OutCode
		72
		73	mov esi, eax
		74	mov edx, [esp+28]
		75
		76	.L21:
		77	mov eax, [esp+24]
		78	mov edx, [eax]
		79	mov eax, ebx
		80	call __L1OutCode
		81
		82	mov edi, eax
		83	.L20:
		84
		85	and eax, esi
		86	jne .L9
		87	cmp esi, edi
		88	je .L9
		89	test esi, esi
		90	jne .L10
		91	test edi, 1
		92	je .L11
		93	mov eax, [ebx+4]
		94	jmp .L25
		95	.L11:
		96	test edi, 2
		97	je .L13
		98	mov eax, [ebx+12]
		99	.L25:
		100	mov edx, [esp+28]
		101	jmp .L22
		102	.L13:
		103	test edi, 4
		104	je .L14
		105	mov eax, [ebx+8]
		106	jmp .L26
		107	.L14:
		108	and edi, 8
		109	je .L12
		110	mov eax, [ebx]
		111	.L26:
		112	mov edx, [esp+24]
		113	.L22:
		114	mov [edx], eax
		115	.L12:
		116	mov eax, [esp+28]
		117	mov ecx, [eax]
		118	jmp .L21
		119	.L10:
		120	test esi, 1
		121	je .L16
		122	mov eax, [ebx+4]
		123	jmp .L23
		124	.L16:
		125	test esi, 2
		126	je .L18
		127	mov eax, [ebx+12]
		128	.L23:
		129	mov [ebp+0], eax
		130	jmp .L17
		131	.L18:
		132	test esi, 4
		133	je .L19
		134	mov eax, [ebx+8]
		135	jmp .L24
		136	.L19:
		137	and esi, 8
		138	je .L17
		139	mov eax, [ebx]
		140	.L24:
		141	mov edx, [esp]
		142	mov [edx], eax
		143	.L17:
		144	mov ecx, [ebp+0]
		145	mov eax, [esp]
		146	mov edx, [eax]
		147	mov eax, ebx
		148	call __L1OutCode
		149	mov esi, eax
		150	jmp .L20
		151	.L9:
		152	add esp, 4
		153	pop ebx
		154	pop esi
		155	pop edi
		156	pop ebp
		157	ret
		158
		159	align 4
		160	blit_clip:
		161
		162	.sx0 equ 36
		163	.sy0 equ 32
		164
		165	.sy1 equ 24
		166
		167	.dx0 equ 20
		168	.dy0 equ 16
		169
		170	.dy1 equ 8
		171
		172
		173	push edi
		174
		175
		176	sub esp, 40
		177
		178	mov ebx, ecx
		179	mov edx, [ecx+BLITTER.src_x]
		180
		181	mov eax, [ecx+BLITTER.src_y]
		182	mov [esp+.sy0], eax
		183	add edx, [ecx+BLITTER.w]
		184	dec edx
		185	mov [esp+.sx1], edx
		186	add eax, [ecx+BLITTER.h]
		187	dec eax
		188	mov [esp+.sy1], eax
		189
		190	lea ecx, [esp+.sy0]
		191	lea edx, [esp+.sx0]
		192
		193	lea esi, [esp+.sy1]
		194
		195	mov [esp+4], esi
		196	lea esi, [esp+.sx1]
		197
		198	call block_clip
		199
		200	mov esi, 1
		201	test eax, eax
		202
		203
		204	mov edi, [esp+.sx0]
		205	mov edx, [ebx+BLITTER.dst_x]
		206
		207	sub edx, [ebx+BLITTER.src_x]
		208	mov [esp+.dx0], edx
		209
		210	mov ecx, [esp+.sy0]
		211	mov eax, [ebx+BLITTER.dst_y]
		212
		213	sub eax, [ebx+BLITTER.src_y]
		214	mov [esp+.dy0], eax
		215	sub edx, edi
		216	add edx, [esp+.sx1]
		217	mov [esp+.dx1], edx
		218
		219	sub eax, ecx
		220	add eax, [esp+.sy1]
		221
		222
		223	lea ecx, [esp+.dy0]
		224	lea edx, [esp+.dx0]
		225
		226	mov [esp+4], eax
		227	lea eax, [esp+.dx1]
		228	mov [esp], eax
		229	mov eax, ebx
		230	call block_clip
		231	test eax, eax
		232	jne .L28
		233
		234	mov edx, [esp+.dx0]
		235	mov eax, [esp+.dx1]
		236
		237	sub eax, edx
		238	mov [ebx+BLITTER.w], eax
		239
		240	mov eax, [esp+.dy0]
		241	mov ecx, [esp+.dy1]
		242
		243	sub ecx, eax
		244	mov [ebx+BLITTER.h], ecx
		245
		246	mov ecx, [ebx+BLITTER.src_x]
		247	add ecx, edx
		248
		249	mov [ebx+BLITTER.src_x], ecx
		250
		251	mov ecx, [ebx+BLITTER.src_y]
		252	add ecx, eax
		253
		254	mov [ebx+BLITTER.src_y], ecx
		255	mov [ebx+BLITTER.dst_x], edx
		256	mov [ebx+BLITTER.dst_y], eax
		257	xor esi, esi
		258	.L28:
		259	mov eax, esi
		260	add esp, 40
		261	pop ebx
		262	pop esi
		263	pop edi
		264
		265
		266	purge .sx0
		267
		268
		269	purge .sy1
		270
		271	purge .dx0
		272	purge .dy0
		273
		274	purge .dy1
		275
		276	ret
		277
		278
		279
		280
		281
		282
		283	push ebp
		284
		285	push esi
		286	push ebx
		287	sub esp, 72
		288
		289	mov eax, [TASK_BASE]
		290	mov ebx, [eax-twdw + WDATA.box.width]
		291
		292
		293	xor eax, eax
		294
		295
		296	mov [esp+BLITTER.dc.ymin], eax
		297
		298	mov [esp+BLITTER.dc.ymax], edx
		299
		300	mov [esp+BLITTER.sc.xmin], eax
		301	mov [esp+BLITTER.sc.ymin], eax
		302
		303	dec eax
		304	mov [esp+BLITTER.sc.xmax], eax
		305	mov eax, [ecx+28]
		306	dec eax
		307	mov [esp+BLITTER.sc.ymax], eax
		308
		309	mov eax, [ecx]
		310	mov [esp+BLITTER.dst_x], eax
		311
		312	mov [esp+BLITTER.dst_y], eax
		313
		314	mov eax, [ecx+16]
		315	mov [esp+BLITTER.src_x], eax
		316
		317	mov [esp+BLITTER.src_y], eax
		318	mov eax, [ecx+8]
		319	mov [esp+BLITTER.w], eax
		320	mov eax, [ecx+12]
		321	mov [esp+BLITTER.h], eax
		322
		323
		324	mov eax, [ecx+32]
		325
		326
		327	mov [esp+60], eax
		328
		329	mov ecx, esp
		330	call blit_clip
		331
		332	jne .L57
		333
		334	inc [mouse_pause]
		335	call [_display.disable_mouse]
		336
		337	mov eax, [TASK_BASE]
		338
		339
		340	mov ebp, [esp+BLITTER.dst_y]
		341
		342	add ebp, [eax-twdw + WDATA.box.top]
		343	mov edi, ebp
		344
		345	imul edi, [_display.pitch]
		346	imul ebp, [_display.width]
		347
		348	add ebp, [_WinMapAddress]
		349
		350	mov eax, [esp+BLITTER.src_y]
		351	imul eax, [esp+BLITTER.stride]
		352
		353	lea esi, [eax+esi*4]
		354	add esi, [esp+BLITTER.bitmap]
		355
		356	mov ecx, [esp+BLITTER.h]
		357	mov edx, [esp+BLITTER.w]
		358
		359	test ecx, ecx ;FIXME check clipping
		360	jz .L57
		361
		362	test edx, edx
		363	jz .L57
		364
		365	cmp [_display.bpp], 32
		366	jne .core_24
		367
		368	lea edi, [edi+ebx*4]
		369
		370
		371
		372
		373	.outer32:
		374
		375
		376	align 4
		377	.inner32:
		378
		379	jne @F
		380
		381	mov eax, [esi+ecx*4]
		382	mov [LFB_BASE+edi+ecx*4], eax
		383
		384	inc ecx
		385	dec edx
		386	jnz .inner32
		387
		388	add esi, [esp+BLITTER.stride]
		389	add edi, [_display.pitch]
		390
		391
		392	mov edx, [esp+BLITTER.w]
		393	dec [esp+BLITTER.h]
		394
		395
		396	.done:
		397	dec [mouse_pause]
		398
		399	.L57:
		400	add esp, 72
		401	pop ebx
		402	pop esi
		403	pop edi
		404	pop ebp
		405	ret
		406
		407	.core_24:
		408	lea ebx, [ebx+ebx*2]
		409
		410	mov ebx, [CURRENT_TASK]
		411
		412	align 4
		413	.outer24:
		414
		415	xor ecx, ecx
		416
		417	align 4
		418	.inner24:
		419
		420	jne @F
		421
		422	mov eax, [esi+ecx*4]
		423
		424
		425	mov [edi+ecx], ax
		426
		427	mov [edi+ecx+2], al
		428	@@:
		429	mov edi, [esp+64]
		430	inc ecx
		431	dec edx
		432	jnz .inner24
		433
		434	add esi, [esp+BLITTER.stride]
		435	add edi, [_display.pitch]
		436
		437
		438	mov edx, [esp+BLITTER.w]
		439	dec [esp+BLITTER.h]
		440
		441
		442	jmp .done
		443

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(root)/kernel/trunk/video/blitter.inc @ 7474 – Rev 1894