WebSVN – Kolibri OS – Blame – /kernel/trunk/video/vesa12.inc

Rev	Author	Line No.	Line
2288	clevermous	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
5363	yogev_ezra	3	;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
2288	clevermous	4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
		6	;; VESA12.INC ;;
		7	;; ;;
		8	;; Vesa 1.2 functions for MenuetOS ;;
		9	;; ;;
		10	;; Copyright 2002 Ville Turjanmaa ;;
		11	;; ;;
		12	;; quickcode@mail.ru - bankswitch for S3 cards ;;
		13	;; ;;
		14	;; See file COPYING for details ;;
		15	;; ;;
		16	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		17
		18	$Revision: 9709 $
		19
		20
7136	dunkaist	21	TRIDENT = 0
		22	S3_VIDEO = 0
		23	INTEL_VIDEO = 0
2288	clevermous	24
		25	if TRIDENT
		26	if S3_VIDEO or INTEL_VIDEO
		27	stop
		28	end if
		29	end if
		30
		31	if S3_VIDEO
		32	if TRIDENT or INTEL_VIDEO
		33	stop
		34	end if
		35	end if
		36
		37	if INTEL_VIDEO
		38	if S3_VIDEO or TRIDENT
		39	stop
		40	end if
		41	end if
		42
		43
		44	; A complete video driver should include the following types of function
		45	;
		46	; Putpixel
		47	; Getpixel
		48	;
		49	; Drawimage
		50	; Drawbar
		51	;
		52	; Drawbackground
		53	;
		54	;
		55	; Modifying the set_bank -function is mostly enough
		56	; for different Vesa 1.2 setups.
		57
		58	;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
		59	; set_bank for Trident videocards, work on Trident 9440
		60	; modified by Mario79
		61
		62	if TRIDENT
		63	set_bank:
		64	pushfd
		65	cli
		66	cmp al, [BANK_RW]
		67	je .retsb
		68
		69	mov [BANK_RW], al
		70	push dx
		71	mov dx, 3D8h
		72	out dx, al
		73	pop dx
		74	.retsb:
		75	popfd
		76	ret
		77	end if
		78
		79	;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
		80	; set_bank for S3 videocards, work on S3 ViRGE PCI (325)
		81	; modified by kmeaw
		82
		83	if S3_VIDEO
		84	set_bank:
		85	pushfd
		86	cli
		87	cmp al, [BANK_RW]
		88	je .retsb
		89
		90	mov [BANK_RW], al
		91	push ax
		92	push dx
		93	push cx
		94	mov cl, al
		95	mov dx, 0x3D4
		96	mov al, 0x38
		97	out dx, al ;CR38 Register Lock 1 ;Note: Traditionally 48h is used to
		98	;unlock and 00h to lock
		99	inc dx
		100	mov al, 0x48
		101	out dx, al ;3d5 -?
		102	dec dx
		103	mov al, 0x31
		104	out dx, al ;CR31 Memory Configuration Register
		105	;0 Enable Base Address Offset (CPUA BASE). Enables bank operation if set, ;disables if clear.
		106	;4-5 Bit 16-17 of the Display Start Address. For the 801/5,928 see index 51h,
		107	;for the 864/964 see index 69h.
		108
		109	inc dx
		110	in al, dx
		111	dec dx
		112	mov ah, al
		113	mov al, 0x31
		114	out dx, ax
		115	mov al, ah
		116	or al, 9
		117	inc dx
		118	out dx, al
		119	dec dx
		120	mov al, 0x35
		121	out dx, al ;CR35 CRT Register Lock
		122	inc dx
		123	in al, dx
		124	dec dx
		125	and al, 0xF0
		126	mov ch, cl
		127	and ch, 0x0F
		128	or ch, al
		129	mov al, 0x35
		130	out dx, al
		131	inc dx
		132	mov al, ch
		133	out dx, ax
		134	dec dx
		135	mov al, 0x51 ;Extended System Control 2 Register
		136	out dx, al
		137	inc dx
		138	in al, dx
		139	dec dx
		140	and al, 0xF3
		141	shr cl, 2
		142	and cl, 0x0C
		143	or cl, al
		144	mov al, 0x51
		145	out dx, al
		146	inc dx
		147	mov al, cl
		148	out dx, al
		149	dec dx
		150	mov al, 0x38
		151	out dx, al
		152	inc dx
		153	xor al, al
		154	out dx, al
		155	dec dx
		156	pop cx
		157	pop dx
		158	pop ax
		159	.retsb:
		160	popfd
		161	ret
		162	end if
		163
		164	;Set bank function for Intel 810/815 chipsets
		165	; ***Modified by Protopopius, Russia.***
		166	; ******* http://menuetos.hut.ru ************
		167	; ************************************************
		168
		169	if INTEL_VIDEO
		170
		171	set_bank:
		172	pushfd
		173	cli
		174
		175	cmp al, [BANK_RW]
		176	je .retsb
		177
		178	mov [BANK_RW], al
		179	push ax
		180	push dx
		181	mov dx, 3CEh
		182	mov ah, al ; Save value for later use
		183	mov al, 10h ; Index GR10 (Address Mapping)
		184	out dx, al ; Select GR10
		185	inc dl
		186	mov al, 3 ; Set bits 0 and 1 (Enable linear page mapping)
		187	out dx, al ; Write value
		188	dec dl
		189	mov al, 11h ; Index GR11 (Page Selector)
		190	out dx, al ; Select GR11
		191	inc dl
		192	mov al, ah ; Write address
		193	out dx, al ; Write the value
		194	pop dx
		195	pop ax
		196	.retsb:
		197	popfd
		198	ret
		199	end if
		200
		201	;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!}
		202
		203	if (TRIDENT or S3_VIDEO or INTEL_VIDEO)
		204	else
		205	set_bank:
		206	pushfd
		207	cli
		208
		209	cmp al, [BANK_RW]
		210	je .retsb
		211
		212	mov [BANK_RW], al
		213	push ax
		214	push dx
		215	mov ah, al
		216	mov dx, 0x03D4
		217	mov al, 0x39
		218	out dx, al
		219	inc dl
		220	mov al, 0xA5
		221	out dx, al
		222	dec dl
		223	mov al, 6Ah
		224	out dx, al
		225	inc dl
		226	mov al, ah
		227	out dx, al
		228	dec dl
		229	mov al, 0x39
		230	out dx, al
		231	inc dl
		232	mov al, 0x5A
		233	out dx, al
		234	dec dl
		235	pop dx
		236	pop ax
		237
		238	.retsb:
		239	popfd
		240	ret
		241	end if
		242
		243	vesa12_drawbackground:
		244
		245	call [_display.disable_mouse]
		246
		247	push eax
		248	push ebx
		249	push ecx
		250	push edx
		251
		252	xor edx, edx
		253	mov eax, dword[BgrDataWidth]
		254	mov ebx, dword[BgrDataHeight]
		255	mul ebx
		256	mov ebx, 3
		257	mul ebx
		258	mov [imax], eax
		259	mov eax, [draw_data+32+RECT.left]
		260	mov ebx, [draw_data+32+RECT.top]
		261	xor edi, edi;no force
		262
		263	v12dp3:
		264
		265	push eax
		266	push ebx
		267
		268	cmp [BgrDrawMode], dword 1 ; tiled background
		269	jne no_vesa12_tiled_bgr
		270
		271	push edx
		272
		273	xor edx, edx
		274	div dword [BgrDataWidth]
		275
		276	push edx
		277	mov eax, ebx
		278	xor edx, edx
		279	div dword [BgrDataHeight]
		280	mov ebx, edx
		281	pop eax
		282
		283	pop edx
		284
		285	no_vesa12_tiled_bgr:
		286
		287	cmp [BgrDrawMode], dword 2 ; stretched background
		288	jne no_vesa12_stretched_bgr
		289
		290	push edx
		291
		292	mul dword [BgrDataWidth]
		293	mov ecx, [Screen_Max_X]
		294	inc ecx
		295	div ecx
		296
		297	push eax
		298	mov eax, ebx
		299	mul dword [BgrDataHeight]
		300	mov ecx, [Screen_Max_Y]
		301	inc ecx
		302	div ecx
		303	mov ebx, eax
		304	pop eax
		305
		306	pop edx
		307
		308	no_vesa12_stretched_bgr:
		309
		310
		311	mov esi, ebx
		312	imul esi, dword [BgrDataWidth]
		313	add esi, eax
		314	lea esi, [esi*3]
		315	add esi, [img_background];IMG_BACKGROUND
		316	pop ebx
		317	pop eax
		318
		319	v12di4:
		320
		321	mov cl, [esi+2]
		322	shl ecx, 16
		323	mov cx, [esi]
		324	pusha
		325	mov esi, eax
		326	mov edi, ebx
		327	mov eax, [Screen_Max_X]
		328	add eax, 1
		329	mul ebx
		330	add eax, [_WinMapAddress]
		331	cmp [eax+esi], byte 1
		332	jnz v12nbgp
		333	mov eax, [BytesPerScanLine]
		334	mov ebx, edi
		335	mul ebx
		336	add eax, esi
		337	lea eax, [VGABasePtr+eax+esi*2]
		338	cmp [ScreenBPP], byte 24
		339	jz v12bgl3
		340	add eax, esi
		341
		342	v12bgl3:
		343
		344	push ebx
		345	push eax
		346
		347	sub eax, VGABasePtr
		348
		349	shr eax, 16
		350	call set_bank
		351	pop eax
		352	and eax, 65535
		353	add eax, VGABasePtr
		354	pop ebx
		355
		356	mov [eax], cx
		357	add eax, 2
		358	shr ecx, 16
		359	mov [eax], cl
		360	sti
		361
		362	v12nbgp:
		363
		364	popa
		365	add esi, 3
		366	inc eax
		367	cmp eax, [draw_data+32+RECT.right]
		368	jg v12nodp31
		369	jmp v12dp3
		370
		371	v12nodp31:
		372
		373	mov eax, [draw_data+32+RECT.left]
		374	inc ebx
		375	cmp ebx, [draw_data+32+RECT.bottom]
		376	jg v12dp4
		377	jmp v12dp3
		378
		379	v12dp4:
		380
		381	pop edx
		382	pop ecx
		383	pop ebx
		384	pop eax
		385	ret
		386
		387
		388	vesa12_drawbar:
		389
		390	call [_display.disable_mouse]
		391
		392	;; mov [novesachecksum],dword 0
		393	sub edx, ebx
		394	sub ecx, eax
		395	push esi
		396	push edi
		397	push eax
		398	push ebx
		399	push ecx
		400	push edx
9679	Doczom	401	mov ecx, [current_slot_idx]
		402	shl ecx, 5
		403	add eax, [ecx + window_data + WDATA.box.left]
		404	add ebx, [ecx + window_data + WDATA.box.top]
2288	clevermous	405	push eax
		406	mov eax, ebx ; y
		407	mov ebx, [BytesPerScanLine]
		408	mul ebx
		409	pop ecx
		410	add eax, ecx ; x
		411	add eax, ecx
		412	add eax, ecx
		413	cmp [ScreenBPP], byte 24; 24 or 32 bpp ? - x start
		414	jz dbpi2412
		415	add eax, ecx
		416
		417	dbpi2412:
		418
		419	add eax, VGABasePtr
		420	mov edi, eax
		421
		422	; x size
		423
		424	mov eax, [esp+4]; [esp+6]
		425	mov ecx, eax
		426	add ecx, eax
		427	add ecx, eax
		428	cmp [ScreenBPP], byte 24; 24 or 32 bpp ? - x size
		429	jz dbpi24312
		430	add ecx, eax
		431
		432	dbpi24312:
		433
		434	mov ebx, [esp+0]
		435
		436	; check limits ?
		437
		438	push eax
		439	push ecx
		440	mov eax, [TASK_BASE]
		441	mov ecx, [eax+draw_data-CURRENT_TASK+RECT.left]
		442	cmp ecx, 0
		443	jnz dbcblimitlset12
		444	mov ecx, [eax+draw_data-CURRENT_TASK+RECT.top]
		445	cmp ecx, 0
		446	jnz dbcblimitlset12
		447	mov ecx, [eax+draw_data-CURRENT_TASK+RECT.right]
		448	cmp ecx, [Screen_Max_X]
		449	jnz dbcblimitlset12
		450	mov ecx, [eax+draw_data-CURRENT_TASK+RECT.bottom]
		451	cmp ecx, [Screen_Max_Y]
		452	jnz dbcblimitlset12
		453	pop ecx
		454	pop eax
		455	push dword 0
		456	jmp dbcblimitlno12
		457
		458	dbcblimitlset12:
		459
		460	pop ecx
		461	pop eax
		462	push dword 1
		463
		464	dbcblimitlno12:
		465
		466	cmp [ScreenBPP], byte 24; 24 or 32 bpp ?
		467	jz dbpi24bit12
		468	jmp dbpi32bit12
		469
		470
		471	; DRAWBAR 24 BBP
		472
		473
		474	dbpi24bit12:
		475
		476	push eax
		477	push ebx
		478	push edx
		479	mov eax, ecx
		480	mov ebx, 3
		481	div ebx
		482	mov ecx, eax
		483	pop edx
		484	pop ebx
		485	pop eax
		486	cld
		487
		488	dbnewpi12:
		489
		490	push ebx
		491	push edi
		492	push ecx
		493
		494	xor edx, edx
		495	mov eax, edi
		496	sub eax, VGABasePtr
		497	mov ebx, 3
		498	div ebx
		499	add eax, [_WinMapAddress]
		500	mov ebx, [CURRENT_TASK]
		501	cld
		502
		503	dbnp2412:
		504
		505	mov dl, [eax]
		506	push eax
		507	push ecx
		508	cmp dl, bl
		509	jnz dbimp24no12
		510	cmp [esp+5*4], dword 0
		511	jz dbimp24yes12
		512	; call dbcplimit
		513	; jnz dbimp24no12
		514
		515	dbimp24yes12:
		516
		517	push edi
		518	mov eax, edi
		519	sub eax, VGABasePtr
		520	shr eax, 16
		521	call set_bank
		522	and edi, 0xffff
		523	add edi, VGABasePtr
		524	mov eax, [esp+8+3*4+16+4+4]
		525	stosw
		526	shr eax, 16
		527	stosb
		528	sti
		529	pop edi
		530	add edi, 3
		531	pop ecx
		532	pop eax
		533	inc eax
		534	loop dbnp2412
		535	jmp dbnp24d12
		536
		537	dbimp24no12:
		538
		539	pop ecx
		540	pop eax
		541	cld
		542	add edi, 3
		543	inc eax
		544	loop dbnp2412
		545
		546	dbnp24d12:
		547
		548	mov eax, [esp+3*4+16+4]
		549	test eax, 0x80000000
		550	jz nodbgl2412
		551	cmp al, 0
		552	jz nodbgl2412
		553	dec eax
		554	mov [esp+3*4+16+4], eax
		555
		556	nodbgl2412:
		557
		558	pop ecx
		559	pop edi
		560	pop ebx
		561	add edi, [BytesPerScanLine]
		562	dec ebx
		563	jz dbnonewpi12
		564	jmp dbnewpi12
		565
		566	dbnonewpi12:
		567
		568	add esp, 7*4
		569
		570	ret
		571
		572
		573	; DRAWBAR 32 BBP
		574
		575
		576	dbpi32bit12:
		577
		578	cld
		579	shr ecx, 2
		580
		581	dbnewpi3212:
		582
		583	push ebx
		584	push edi
		585	push ecx
		586
		587	mov eax, edi
		588	sub eax, VGABasePtr
		589	shr eax, 2
		590	add eax, [_WinMapAddress]
		591	mov ebx, [CURRENT_TASK]
		592	cld
		593
		594	dbnp3212:
		595
		596	mov dl, [eax]
		597	push eax
		598	push ecx
		599	cmp dl, bl
		600	jnz dbimp32no12
		601	cmp [esp+5*4], dword 0
		602	jz dbimp32yes12
		603	; call dbcplimit
		604	; jnz dbimp32no12
		605
		606	dbimp32yes12:
		607
		608	push edi
		609	mov eax, edi
		610	sub eax, VGABasePtr
		611	shr eax, 16
		612	call set_bank
		613	and edi, 0xffff
		614	add edi, VGABasePtr
		615	mov eax, [esp+8+3*4+16+4+4]
		616	stosw
		617	shr eax, 16
		618	stosb
		619	sti
		620	pop edi
		621	add edi, 4
		622	inc ebp
		623	pop ecx
		624	pop eax
		625	inc eax
		626	loop dbnp3212
		627	jmp dbnp32d12
		628
		629	dbimp32no12:
		630
		631	pop ecx
		632	pop eax
		633	inc eax
		634	add edi, 4
		635	inc ebp
		636	loop dbnp3212
		637
		638	dbnp32d12:
		639
		640	mov eax, [esp+12+16+4]
		641	test eax, 0x80000000
		642	jz nodbgl3212
		643	cmp al, 0
		644	jz nodbgl3212
		645	dec eax
		646	mov [esp+12+16+4], eax
		647
		648	nodbgl3212:
		649
		650	pop ecx
		651	pop edi
		652	pop ebx
		653	add edi, [BytesPerScanLine]
		654	dec ebx
		655	jz nodbnewpi3212
		656	jmp dbnewpi3212
		657
		658	nodbnewpi3212:
		659
		660	add esp, 7*4
		661	ret
		662
		663
		664	Vesa12_putpixel24:
		665
		666	mov edi, eax; x
		667	mov eax, ebx; y
		668	lea edi, [edi+edi*2]
		669	mov ebx, [BytesPerScanLine]
		670	mul ebx
		671	add edi, eax
		672	mov eax, edi
		673	shr eax, 16
		674	call set_bank
		675	and edi, 65535
		676	add edi, VGABasePtr
		677	mov eax, [esp+28]
		678	stosw
		679	shr eax, 16
		680	mov [edi], al
		681	sti
		682	ret
		683
		684
		685
		686	Vesa12_putpixel32:
		687
		688	mov edi, eax; x
		689	mov eax, ebx; y
		690	shl edi, 2
		691	mov ebx, [BytesPerScanLine]
		692	mul ebx
		693	add edi, eax
		694	mov eax, edi
		695	shr eax, 16
		696	call set_bank
		697	and edi, 65535
		698	add edi, VGABasePtr
		699	mov ecx, [esp+28]
		700	mov [edi], ecx
		701	sti
		702	ret
		703
		704
		705	Vesa12_getpixel24:
		706
		707	mov edi, eax; x
		708	mov eax, ebx; y
		709	lea edi, [edi+edi*2]
		710	mov ebx, [BytesPerScanLine]
		711	mul ebx
		712	add edi, eax
		713	mov eax, edi
		714	shr eax, 16
		715	call set_bank
		716	and edi, 65535
		717	add edi, VGABasePtr
		718	mov ecx, [edi]
		719	and ecx, 255256256+255*256+255
		720	sti
		721	ret
		722
		723
		724	Vesa12_getpixel32:
		725
		726	mov edi, eax; x
		727	mov eax, ebx; y
		728	shl edi, 2
		729	mov ebx, [BytesPerScanLine]
		730	xor edx, edx
		731	mul ebx
		732	add edi, eax
		733	mov eax, edi
		734	shr eax, 16
		735	call set_bank
		736	and edi, 65535
		737	add edi, VGABasePtr
		738	mov ecx, [edi]
		739	and ecx, 255256256+255*256+255
		740	sti
		741
		742	ret
		743
		744
		745
		746	vesa12_putimage:
		747	; ebx = pointer to image
		748	; ecx = size [x\|y]
		749	; edx = coordinates [x\|y]
		750	; ebp = pointer to 'get' function
		751	; esi = pointer to 'init' function
		752	; edi = parameter for 'get' function
		753
		754	; mov ebx,image
		755	; mov ecx,320*65536+240
		756	; mov edx,20*65536+20
		757
		758	call [_display.disable_mouse]
		759
		760	mov [novesachecksum], dword 0
		761	push esi
		762	push edi
		763	push eax
		764	push ebx
		765	push ecx
		766	push edx
		767	movzx eax, word [esp+2]
		768	movzx ebx, word [esp+0]
9679	Doczom	769	mov ecx, [current_slot_idx]
		770	shl ecx, 5
		771	add eax, [ecx + window_data + WDATA.box.left]
		772	add ebx, [ecx + window_data + WDATA.box.top]
2288	clevermous	773	push eax
		774	mov eax, ebx ; y
		775	mul dword [BytesPerScanLine]
		776	pop ecx
		777	add eax, ecx ; x
		778	add eax, ecx
		779	add eax, ecx
		780	cmp [ScreenBPP], byte 24; 24 or 32 bpp ? - x start
		781	jz pi2412
		782	add eax, ecx
		783
		784	pi2412:
		785
		786	add eax, VGABasePtr
		787	mov edi, eax
		788
		789	; x size
		790
		791	movzx ecx, word [esp+6]
		792
		793	mov esi, [esp+8]
		794	movzx ebx, word [esp+4]
		795
		796	; check limits while draw ?
		797
		798	push ecx
		799	mov eax, [TASK_BASE]
		800	cmp dword [eax+draw_data-CURRENT_TASK+RECT.left], 0
		801	jnz dbcblimitlset212
		802	cmp dword [eax+draw_data-CURRENT_TASK+RECT.top], 0
		803	jnz dbcblimitlset212
		804	mov ecx, [eax+draw_data-CURRENT_TASK+RECT.right]
		805	cmp ecx, [Screen_Max_X]
		806	jnz dbcblimitlset212
		807	mov ecx, [eax+draw_data-CURRENT_TASK+RECT.bottom]
		808	cmp ecx, [Screen_Max_Y]
		809	jnz dbcblimitlset212
		810	pop ecx
		811	push 0
		812	jmp dbcblimitlno212
		813
		814	dbcblimitlset212:
		815
		816	pop ecx
		817	push 1
		818
		819	dbcblimitlno212:
		820
		821	cmp [ScreenBPP], byte 24; 24 or 32 bpp ?
		822	jnz pi32bit12
		823
		824	pi24bit12:
		825
		826	newpi12:
		827
		828	push edi
		829	push ecx
		830	push ebx
		831
		832	mov edx, edi
		833	sub edx, VGABasePtr
		834	mov ebx, 3
		835	div ebx
		836	add edx, [_WinMapAddress]
		837	mov ebx, [CURRENT_TASK]
		838	mov bh, [esp+4*3]
		839
		840	np2412:
		841
		842	cmp bl, [edx]
		843	jnz imp24no12
		844	; mov eax,[esi]
		845	push dword [esp+4*3+20]
		846	call ebp
		847	; cmp bh,0
		848	; jz imp24yes12
		849	; call dbcplimit
		850	; jnz imp24no12
		851
		852	imp24yes12:
		853
		854	push edi
		855	push eax
		856	mov eax, edi
		857	sub eax, VGABasePtr
		858	shr eax, 16
		859	call set_bank
		860	pop eax
		861	and edi, 0xffff
		862	add edi, VGABasePtr
		863	mov [edi], ax
		864	shr eax, 16
		865	mov [edi+2], al
		866	pop edi
		867
		868	imp24no12:
		869
		870	inc edx
		871	; add esi,3
		872	add edi, 3
		873	dec ecx
		874	jnz np2412
		875
		876	np24d12:
		877
		878	pop ebx
		879	pop ecx
		880	pop edi
		881
		882	add edi, [BytesPerScanLine]
		883	add esi, [esp+32]
		884	cmp ebp, putimage_get1bpp
		885	jz .correct
		886	cmp ebp, putimage_get2bpp
		887	jz .correct
		888	cmp ebp, putimage_get4bpp
		889	jnz @f
		890	.correct:
		891	mov eax, [esp+20]
		892	mov byte[eax], 80h
		893	@@:
		894	dec ebx
		895	jnz newpi12
		896
		897	nonewpi12:
		898
		899	pop eax edx ecx ebx eax edi esi
		900	xor eax, eax
		901	ret
		902
		903
		904	pi32bit12:
		905
		906	newpi3212:
		907
		908	push edi
		909	push ecx
		910	push ebx
		911
		912	mov edx, edi
		913	sub edx, VGABasePtr
		914	shr edx, 2
		915	add edx, [_WinMapAddress]
		916	mov ebx, [CURRENT_TASK]
		917	mov bh, [esp+4*3]
		918
		919	np3212:
		920
		921	cmp bl, [edx]
		922	jnz imp32no12
		923	; mov eax,[esi]
		924	push dword [esp+4*3+20]
		925	call ebp
		926	; cmp bh,0
		927	; jz imp32yes12
		928	; call dbcplimit
		929	; jnz imp32no12
		930
		931	imp32yes12:
		932
		933	push edi
		934	push eax
		935	mov eax, edi
		936	sub eax, VGABasePtr
		937	shr eax, 16
		938	call set_bank
		939	pop eax
		940	and edi, 0xffff
		941	mov [edi+VGABasePtr], eax
		942	pop edi
		943
		944	imp32no12:
		945
		946	inc edx
		947	; add esi,3
		948	add edi, 4
		949	dec ecx
		950	jnz np3212
		951
		952	np32d12:
		953
		954	pop ebx
		955	pop ecx
		956	pop edi
		957
		958	add edi, [BytesPerScanLine]
		959	cmp ebp, putimage_get1bpp
		960	jz .correct
		961	cmp ebp, putimage_get2bpp
		962	jz .correct
		963	cmp ebp, putimage_get4bpp
		964	jnz @f
		965	.correct:
		966	mov eax, [esp+20]
		967	mov byte[eax], 80h
		968	@@:
		969	dec ebx
		970	jnz newpi3212
		971
		972	nonewpi3212:
		973
		974	pop eax edx ecx ebx eax edi esi
		975	xor eax, eax
		976	ret
		977
		978
		979	vesa12_read_screen_pixel:
		980
		981	and eax, 0x3FFFFF
		982	cmp [ScreenBPP], byte 24; 24 or 32 bpp ?
		983	jz v12rsp24
		984	mov edi, eax
		985	shl edi, 2
		986	mov eax, edi
		987	shr eax, 16
		988	call set_bank
		989	and edi, 65535
		990	add edi, VGABasePtr
		991	mov eax, [edi]
		992	and eax, 0x00ffffff
		993	ret
		994	v12rsp24:
		995
		996	imul eax, 3
		997	mov edi, eax
		998	shr eax, 16
		999	call set_bank
		1000	and edi, 65535
		1001	add edi, VGABasePtr
		1002	mov eax, [edi]
		1003	and eax, 0x00ffffff
		1004	ret
		1005

Subversion Repositories Kolibri OS

(root)/kernel/trunk/video/vesa12.inc – Rev 9709