WebSVN – Kolibri OS – Blame – /kernel/trunk/video/vesa20.inc

Rev	Author	Line No.	Line
2288	clevermous	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
2455	mario79	3	;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;;
2288	clevermous	4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
		6	;; VESA20.INC ;;
		7	;; ;;
		8	;; Vesa 2.0 functions for MenuetOS ;;
		9	;; ;;
		10	;; Copyright 2002 Ville Turjanmaa ;;
		11	;; Alexey, kgaz@crosswindws.net ;;
		12	;; - Voodoo compatible graphics ;;
		13	;; Juan M. Caravaca ;;
		14	;; - Graphics optimimizations eg. drawline ;;
		15	;; ;;
		16	;; See file COPYING for details ;;
		17	;; ;;
		18	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		19
		20	$Revision: 2477 $
		21
		22
		23	; If you're planning to write your own video driver I suggest
		24	; you replace the VESA12.INC file and see those instructions.
		25
		26	;Screen_Max_X equ 0xfe00
		27	;Screen_Max_Y equ 0xfe04
		28	;BytesPerScanLine equ 0xfe08
		29	;LFBAddress equ 0xfe80
		30	;ScreenBPP equ 0xfbf1
		31
		32
		33
2430	mario79	34	;-----------------------------------------------------------------------------
2288	clevermous	35	; getpixel
		36	;
		37	; in:
		38	; eax = x coordinate
		39	; ebx = y coordinate
		40	;
		41	; ret:
		42	; ecx = 00 RR GG BB
2430	mario79	43	;-----------------------------------------------------------------------------
		44	align 4
2288	clevermous	45	getpixel:
		46	push eax ebx edx edi
		47	call dword [GETPIXEL]
		48	pop edi edx ebx eax
		49	ret
2430	mario79	50	;-----------------------------------------------------------------------------
		51	align 4
2288	clevermous	52	Vesa20_getpixel24:
		53	; eax = x
		54	; ebx = y
2430	mario79	55	;--------------------------------------
2448	mario79	56	; check for hardware cursor
2451	mario79	57	cmp [_display.select_cursor], select_cursor
		58	je @f
2448	mario79	59	cmp [_display.select_cursor], 0
		60	jne .no_mouseunder
		61	;--------------------------------------
		62	align 4
		63	@@:
2430	mario79	64	; check mouse area for putpixel
		65	test ecx, 0x04000000 ; don't load to mouseunder area
		66	jnz .no_mouseunder
		67	call [_display.check_m_pixel]
		68	test ecx, ecx ;0xff000000
		69	jnz @f
2448	mario79	70	;--------------------------------------
		71	align 4
2430	mario79	72	.no_mouseunder:
		73	;--------------------------------------
2446	mario79	74	; imul ebx, [BytesPerScanLine] ; ebx = y * y multiplier
		75	mov ebx, [d_width_calc_area + ebx*4]
		76	lea ebx, [ebx + ebx*2]
2288	clevermous	77	lea edi, [eax+eax2]; edi = x3
		78	add edi, ebx ; edi = x3+(yy multiplier)
		79	mov ecx, [LFB_BASE+edi]
2430	mario79	80	;--------------------------------------
		81	align 4
		82	@@:
2288	clevermous	83	and ecx, 0xffffff
		84	ret
2430	mario79	85	;-----------------------------------------------------------------------------
		86	align 4
2288	clevermous	87	Vesa20_getpixel32:
2430	mario79	88	;--------------------------------------
2448	mario79	89	; check for hardware cursor
2451	mario79	90	cmp [_display.select_cursor], select_cursor
		91	je @f
2448	mario79	92	cmp [_display.select_cursor], 0
		93	jne .no_mouseunder
		94	;--------------------------------------
		95	align 4
		96	@@:
2430	mario79	97	; check mouse area for putpixel
		98	test ecx, 0x04000000 ; don't load to mouseunder area
		99	jnz .no_mouseunder
		100	call [_display.check_m_pixel]
		101	test ecx, ecx ;0xff000000
		102	jnz @f
2448	mario79	103	;--------------------------------------
		104	align 4
2430	mario79	105	.no_mouseunder:
		106	;--------------------------------------
2446	mario79	107	; imul ebx, [BytesPerScanLine] ; ebx = y * y multiplier
		108	mov ebx, [d_width_calc_area + ebx*4]
		109	shl ebx, 2
2288	clevermous	110	lea edi, [ebx+eax4]; edi = x4+(y*y multiplier)
		111	mov ecx, [LFB_BASE+edi]
2430	mario79	112	;--------------------------------------
		113	align 4
		114	@@:
2288	clevermous	115	and ecx, 0xffffff
		116	ret
2430	mario79	117	;-----------------------------------------------------------------------------
2288	clevermous	118	virtual at esp
		119	putimg:
		120	.real_sx dd ?
		121	.real_sy dd ?
		122	.image_sx dd ?
		123	.image_sy dd ?
		124	.image_cx dd ?
		125	.image_cy dd ?
		126	.pti dd ?
		127	.abs_cx dd ?
		128	.abs_cy dd ?
		129	.line_increment dd ?
		130	.winmap_newline dd ?
		131	.screen_newline dd ?
2430	mario79	132	.real_sx_and_abs_cx dd ?
		133	.real_sy_and_abs_cy dd ?
		134	.stack_data = 4*14
2288	clevermous	135	.edi dd ?
		136	.esi dd ?
		137	.ebp dd ?
		138	.esp dd ?
		139	.ebx dd ?
		140	.edx dd ?
		141	.ecx dd ?
		142	.eax dd ?
		143	.ret_addr dd ?
		144	.arg_0 dd ?
		145	end virtual
2430	mario79	146	;-----------------------------------------------------------------------------
2288	clevermous	147	align 16
		148	; ebx = pointer
		149	; ecx = size [x\|y]
		150	; edx = coordinates [x\|y]
		151	; ebp = pointer to 'get' function
		152	; esi = pointer to 'init' function
		153	; edi = parameter for 'get' function
		154	vesa20_putimage:
		155	pushad
		156	sub esp, putimg.stack_data
		157	; save pointer to image
		158	mov [putimg.pti], ebx
		159	; unpack the size
		160	mov eax, ecx
		161	and ecx, 0xFFFF
		162	shr eax, 16
		163	mov [putimg.image_sx], eax
		164	mov [putimg.image_sy], ecx
		165	; unpack the coordinates
		166	mov eax, edx
		167	and edx, 0xFFFF
		168	shr eax, 16
		169	mov [putimg.image_cx], eax
		170	mov [putimg.image_cy], edx
		171	; calculate absolute (i.e. screen) coordinates
		172	mov eax, [TASK_BASE]
		173	mov ebx, [eax-twdw + WDATA.box.left]
		174	add ebx, [putimg.image_cx]
		175	mov [putimg.abs_cx], ebx
		176	mov ebx, [eax-twdw + WDATA.box.top]
		177	add ebx, [putimg.image_cy]
		178	mov [putimg.abs_cy], ebx
		179	; real_sx = MIN(wnd_sx-image_cx, image_sx);
		180	mov ebx, [eax-twdw + WDATA.box.width]; ebx = wnd_sx
		181	; \begin{diamond}[20.08.2006]
		182	; note that WDATA.box.width is one pixel less than real window x-size
		183	inc ebx
		184	; \end{diamond}[20.08.2006]
		185	sub ebx, [putimg.image_cx]
		186	ja @f
		187	add esp, putimg.stack_data
		188	popad
		189	ret
2430	mario79	190	;--------------------------------------
		191	align 4
2288	clevermous	192	@@:
		193	cmp ebx, [putimg.image_sx]
		194	jbe .end_x
		195	mov ebx, [putimg.image_sx]
2430	mario79	196	;--------------------------------------
		197	align 4
2288	clevermous	198	.end_x:
		199	mov [putimg.real_sx], ebx
		200	; init real_sy
		201	mov ebx, [eax-twdw + WDATA.box.height]; ebx = wnd_sy
		202	; \begin{diamond}[20.08.2006]
		203	inc ebx
		204	; \end{diamond}[20.08.2006]
		205	sub ebx, [putimg.image_cy]
		206	ja @f
		207	add esp, putimg.stack_data
		208	popad
		209	ret
2430	mario79	210	;--------------------------------------
		211	align 4
2288	clevermous	212	@@:
		213	cmp ebx, [putimg.image_sy]
		214	jbe .end_y
		215	mov ebx, [putimg.image_sy]
2430	mario79	216	;--------------------------------------
		217	align 4
2288	clevermous	218	.end_y:
		219	mov [putimg.real_sy], ebx
		220	; line increment
		221	mov eax, [putimg.image_sx]
		222	mov ecx, [putimg.real_sx]
		223	sub eax, ecx
		224	;; imul eax, [putimg.source_bpp]
		225	; lea eax, [eax + eax * 2]
		226	call esi
		227	add eax, [putimg.arg_0]
		228	mov [putimg.line_increment], eax
		229	; winmap new line increment
		230	mov eax, [Screen_Max_X]
		231	inc eax
		232	sub eax, [putimg.real_sx]
		233	mov [putimg.winmap_newline], eax
		234	; screen new line increment
		235	mov eax, [BytesPerScanLine]
		236	movzx ebx, byte [ScreenBPP]
		237	shr ebx, 3
		238	imul ecx, ebx
		239	sub eax, ecx
		240	mov [putimg.screen_newline], eax
		241	; pointer to image
		242	mov esi, [putimg.pti]
		243	; pointer to screen
		244	mov edx, [putimg.abs_cy]
2446	mario79	245	; imul edx, [BytesPerScanLine]
		246
		247	mov edx, [d_width_calc_area + edx*4]
		248	cmp bl, 4
		249	je .32
		250	lea edx, [edx+edx*2]
		251	jmp @f
		252	;-------------------------------------
		253	align 4
		254	.32:
		255	shl edx, 2
		256	;-------------------------------------
		257	align 4
		258	@@:
2288	clevermous	259	mov eax, [putimg.abs_cx]
2446	mario79	260	; movzx ebx, byte [ScreenBPP]
		261	; shr ebx, 3
2288	clevermous	262	imul eax, ebx
		263	add edx, eax
		264	; pointer to pixel map
		265	mov eax, [putimg.abs_cy]
2446	mario79	266	; imul eax, [Screen_Max_X]
		267	; add eax, [putimg.abs_cy]
		268	mov eax, [d_width_calc_area + eax*4]
		269
2288	clevermous	270	add eax, [putimg.abs_cx]
		271	add eax, [_WinMapAddress]
		272	xchg eax, ebp
2430	mario79	273	;--------------------------------------
		274	mov ecx, [putimg.real_sx]
		275	add ecx, [putimg.abs_cx]
		276	mov [putimg.real_sx_and_abs_cx], ecx
		277	mov ecx, [putimg.real_sy]
		278	add ecx, [putimg.abs_cy]
		279	mov [putimg.real_sy_and_abs_cy], ecx
		280	;--------------------------------------
2288	clevermous	281	; get process number
		282	mov ebx, [CURRENT_TASK]
		283	cmp byte [ScreenBPP], 32
		284	je put_image_end_32
2435	mario79	285	;--------------------------------------
		286	put_image_end_24:
2288	clevermous	287	mov edi, [putimg.real_sy]
2453	mario79	288	;--------------------------------------
		289	; check for hardware cursor
2455	mario79	290	mov ecx, [_display.select_cursor]
		291	cmp ecx, select_cursor
		292	je put_image_end_24_new
		293	cmp ecx, 0
2453	mario79	294	je put_image_end_24_old
2430	mario79	295	;--------------------------------------
		296	align 4
2288	clevermous	297	.new_line:
		298	mov ecx, [putimg.real_sx]
2430	mario79	299	;--------------------------------------
		300	align 4
2288	clevermous	301	.new_x:
		302	push [putimg.edi]
		303	mov eax, [putimg.ebp+4]
		304	call eax
		305	cmp [ebp], bl
		306	jne .skip
2430	mario79	307	;--------------------------------------
2453	mario79	308	; store to real LFB
		309	mov [LFB_BASE+edx], ax
		310	shr eax, 16
		311	mov [LFB_BASE+edx+2], al
		312	;--------------------------------------
		313	align 4
		314	.skip:
		315	add edx, 3
		316	inc ebp
		317	dec ecx
		318	jnz .new_x
		319
		320	add esi, [putimg.line_increment]
		321	add edx, [putimg.screen_newline];[BytesPerScanLine]
		322	add ebp, [putimg.winmap_newline];[Screen_Max_X]
		323
		324	cmp [putimg.ebp], putimage_get1bpp
		325	jz .correct
		326	cmp [putimg.ebp], putimage_get2bpp
		327	jz .correct
		328	cmp [putimg.ebp], putimage_get4bpp
		329	jnz @f
		330	;--------------------------------------
		331	align 4
		332	.correct:
		333	mov eax, [putimg.edi]
		334	mov byte [eax], 80h
		335	;--------------------------------------
		336	align 4
		337	@@:
		338	dec edi
		339	jnz .new_line
		340	;--------------------------------------
		341	align 4
		342	.finish:
		343	add esp, putimg.stack_data
		344	popad
		345	ret
		346	;------------------------------------------------------------------------------
		347	align 4
		348	put_image_end_24_old:
		349	;--------------------------------------
		350	align 4
		351	.new_line:
		352	mov ecx, [putimg.real_sx]
		353	;--------------------------------------
		354	align 4
		355	.new_x:
		356	push [putimg.edi]
		357	mov eax, [putimg.ebp+4]
		358	call eax
		359	cmp [ebp], bl
		360	jne .skip
		361	;--------------------------------------
2430	mario79	362	push ecx
		363
		364	neg ecx
		365	add ecx, [putimg.real_sx_and_abs_cx + 4]
		366	shl ecx, 16
		367	add ecx, [putimg.real_sy_and_abs_cy + 4]
		368	sub ecx, edi
		369
		370	; check mouse area for putpixel
2435	mario79	371	call check_mouse_area_for_putpixel
2430	mario79	372	pop ecx
		373	; store to real LFB
2288	clevermous	374	mov [LFB_BASE+edx], ax
		375	shr eax, 16
		376	mov [LFB_BASE+edx+2], al
2430	mario79	377	;--------------------------------------
		378	align 4
2288	clevermous	379	.skip:
		380	add edx, 3
		381	inc ebp
		382	dec ecx
		383	jnz .new_x
2435	mario79	384
2288	clevermous	385	add esi, [putimg.line_increment]
		386	add edx, [putimg.screen_newline];[BytesPerScanLine]
		387	add ebp, [putimg.winmap_newline];[Screen_Max_X]
2435	mario79	388
2288	clevermous	389	cmp [putimg.ebp], putimage_get1bpp
		390	jz .correct
		391	cmp [putimg.ebp], putimage_get2bpp
		392	jz .correct
		393	cmp [putimg.ebp], putimage_get4bpp
		394	jnz @f
2430	mario79	395	;--------------------------------------
		396	align 4
2288	clevermous	397	.correct:
		398	mov eax, [putimg.edi]
		399	mov byte [eax], 80h
2430	mario79	400	;--------------------------------------
		401	align 4
2288	clevermous	402	@@:
		403	dec edi
		404	jnz .new_line
2453	mario79	405	jmp put_image_end_24.finish
		406	;------------------------------------------------------------------------------
2430	mario79	407	align 4
2435	mario79	408	put_image_end_24_new:
		409	;--------------------------------------
		410	align 4
		411	.new_line:
		412	mov ecx, [putimg.real_sx]
		413	;--------------------------------------
		414	align 4
		415	.new_x:
		416	push [putimg.edi]
		417	mov eax, [putimg.ebp+4]
		418	call eax
		419	cmp [ebp], bl
		420	jne .skip
		421	;--------------------------------------
		422	push ecx
		423	mov ecx, [putimg.real_sy_and_abs_cy + 4]
		424	sub ecx, edi
		425	;--------------------------------------
		426	; check for Y
		427	cmp cx, [Y_UNDER_subtraction_CUR_hot_y]
		428	jb .no_mouse_area
		429
		430	cmp cx, [Y_UNDER_sub_CUR_hot_y_add_curh]
		431	jae .no_mouse_area
		432
		433	rol ecx, 16
		434	add ecx, [putimg.real_sx_and_abs_cx + 4]
		435	sub ecx, [esp]
		436	;--------------------------------------
		437	; check for X
		438	cmp cx, [X_UNDER_subtraction_CUR_hot_x]
		439	jb .no_mouse_area
		440
		441	cmp cx, [X_UNDER_sub_CUR_hot_x_add_curh]
		442	jae .no_mouse_area
		443	;--------------------------------------
		444	; check mouse area for putpixel
		445	call check_mouse_area_for_putpixel_new.1
		446	;--------------------------------------
		447	align 4
		448	.no_mouse_area:
		449	pop ecx
		450	; store to real LFB
		451	mov [LFB_BASE+edx], ax
		452	shr eax, 16
		453	mov [LFB_BASE+edx+2], al
		454	;--------------------------------------
		455	align 4
		456	.skip:
		457	add edx, 3
		458	inc ebp
		459	dec ecx
		460	jnz .new_x
		461
		462	add esi, [putimg.line_increment]
		463	add edx, [putimg.screen_newline];[BytesPerScanLine]
		464	add ebp, [putimg.winmap_newline];[Screen_Max_X]
		465
		466	cmp [putimg.ebp], putimage_get1bpp
		467	jz .correct
		468	cmp [putimg.ebp], putimage_get2bpp
		469	jz .correct
		470	cmp [putimg.ebp], putimage_get4bpp
		471	jnz @f
		472	;--------------------------------------
		473	align 4
		474	.correct:
		475	mov eax, [putimg.edi]
		476	mov byte [eax], 80h
		477	;--------------------------------------
		478	align 4
		479	@@:
		480	dec edi
		481	jnz .new_line
		482	jmp put_image_end_24.finish
2430	mario79	483	;------------------------------------------------------------------------------
		484	align 4
2288	clevermous	485	put_image_end_32:
		486	mov edi, [putimg.real_sy]
2453	mario79	487	;--------------------------------------
		488	; check for hardware cursor
2455	mario79	489	mov ecx, [_display.select_cursor]
		490	cmp ecx, select_cursor
		491	je put_image_end_32_new
		492	cmp ecx, 0
2453	mario79	493	je put_image_end_32_old
2430	mario79	494	;--------------------------------------
		495	align 4
2288	clevermous	496	.new_line:
		497	mov ecx, [putimg.real_sx]
2430	mario79	498	;--------------------------------------
		499	align 4
2288	clevermous	500	.new_x:
		501	push [putimg.edi]
		502	mov eax, [putimg.ebp+4]
		503	call eax
		504	cmp [ebp], bl
		505	jne .skip
2430	mario79	506	;--------------------------------------
		507	; store to real LFB
2288	clevermous	508	mov [LFB_BASE+edx], eax
2430	mario79	509	;--------------------------------------
		510	align 4
2288	clevermous	511	.skip:
		512	add edx, 4
		513	inc ebp
		514	dec ecx
		515	jnz .new_x
2435	mario79	516
2288	clevermous	517	add esi, [putimg.line_increment]
		518	add edx, [putimg.screen_newline];[BytesPerScanLine]
		519	add ebp, [putimg.winmap_newline];[Screen_Max_X]
2435	mario79	520
2288	clevermous	521	cmp [putimg.ebp], putimage_get1bpp
		522	jz .correct
		523	cmp [putimg.ebp], putimage_get2bpp
		524	jz .correct
		525	cmp [putimg.ebp], putimage_get4bpp
		526	jnz @f
2430	mario79	527	;--------------------------------------
		528	align 4
2288	clevermous	529	.correct:
		530	mov eax, [putimg.edi]
		531	mov byte [eax], 80h
2430	mario79	532	;--------------------------------------
		533	align 4
2288	clevermous	534	@@:
		535	dec edi
		536	jnz .new_line
2430	mario79	537	;--------------------------------------
		538	align 4
2288	clevermous	539	.finish:
		540	add esp, putimg.stack_data
		541	popad
2436	mario79	542	cmp [SCR_MODE], dword 0x12
		543	jne @f
2288	clevermous	544	call VGA__putimage
2436	mario79	545	;--------------------------------------
		546	align 4
		547	@@:
2288	clevermous	548	mov [EGA_counter], 1
		549	ret
2453	mario79	550	;------------------------------------------------------------------------------
		551	align 4
		552	put_image_end_32_old:
2435	mario79	553	;--------------------------------------
		554	align 4
2453	mario79	555	.new_line:
		556	mov ecx, [putimg.real_sx]
		557	;--------------------------------------
		558	align 4
		559	.new_x:
		560	push [putimg.edi]
		561	mov eax, [putimg.ebp+4]
		562	call eax
		563	cmp [ebp], bl
		564	jne .skip
		565	;--------------------------------------
		566	push ecx
		567
		568	neg ecx
		569	add ecx, [putimg.real_sx_and_abs_cx + 4]
		570	shl ecx, 16
		571	add ecx, [putimg.real_sy_and_abs_cy + 4]
		572	sub ecx, edi
		573
		574	; check mouse area for putpixel
		575	call check_mouse_area_for_putpixel
		576	pop ecx
		577	; store to real LFB
		578	mov [LFB_BASE+edx], eax
		579	;--------------------------------------
		580	align 4
		581	.skip:
		582	add edx, 4
		583	inc ebp
		584	dec ecx
		585	jnz .new_x
		586
		587	add esi, [putimg.line_increment]
		588	add edx, [putimg.screen_newline];[BytesPerScanLine]
		589	add ebp, [putimg.winmap_newline];[Screen_Max_X]
		590
		591	cmp [putimg.ebp], putimage_get1bpp
		592	jz .correct
		593	cmp [putimg.ebp], putimage_get2bpp
		594	jz .correct
		595	cmp [putimg.ebp], putimage_get4bpp
		596	jnz @f
		597	;--------------------------------------
		598	align 4
		599	.correct:
		600	mov eax, [putimg.edi]
		601	mov byte [eax], 80h
		602	;--------------------------------------
		603	align 4
		604	@@:
		605	dec edi
		606	jnz .new_line
		607	jmp put_image_end_32.finish
		608	;------------------------------------------------------------------------------
		609	align 4
2435	mario79	610	put_image_end_32_new:
		611	;--------------------------------------
		612	align 4
		613	.new_line:
		614	mov ecx, [putimg.real_sx]
		615	;--------------------------------------
		616	align 4
		617	.new_x:
		618	push [putimg.edi]
		619	mov eax, [putimg.ebp+4]
		620	call eax
		621	cmp [ebp], bl
		622	jne .skip
		623	;--------------------------------------
		624	push ecx
		625	mov ecx, [putimg.real_sy_and_abs_cy + 4]
		626	sub ecx, edi
		627	;--------------------------------------
		628	; check for Y
		629	cmp cx, [Y_UNDER_subtraction_CUR_hot_y]
		630	jb .no_mouse_area
		631
		632	cmp cx, [Y_UNDER_sub_CUR_hot_y_add_curh]
		633	jae .no_mouse_area
		634
		635	rol ecx, 16
		636	add ecx, [putimg.real_sx_and_abs_cx + 4]
		637	sub ecx, [esp]
		638	;--------------------------------------
		639	; check for X
		640	cmp cx, [X_UNDER_subtraction_CUR_hot_x]
		641	jb .no_mouse_area
		642
		643	cmp cx, [X_UNDER_sub_CUR_hot_x_add_curh]
		644	jae .no_mouse_area
		645	;--------------------------------------
		646	; check mouse area for putpixel
		647	call check_mouse_area_for_putpixel_new.1
		648	;--------------------------------------
		649	align 4
		650	.no_mouse_area:
		651	pop ecx
		652	; store to real LFB
		653	mov [LFB_BASE+edx], eax
		654	;--------------------------------------
		655	align 4
		656	.skip:
		657	add edx, 4
		658	inc ebp
		659	dec ecx
		660	jnz .new_x
		661
		662	add esi, [putimg.line_increment]
		663	add edx, [putimg.screen_newline];[BytesPerScanLine]
		664	add ebp, [putimg.winmap_newline];[Screen_Max_X]
		665
		666	cmp [putimg.ebp], putimage_get1bpp
		667	jz .correct
		668	cmp [putimg.ebp], putimage_get2bpp
		669	jz .correct
		670	cmp [putimg.ebp], putimage_get4bpp
		671	jnz @f
		672	;--------------------------------------
		673	align 4
		674	.correct:
		675	mov eax, [putimg.edi]
		676	mov byte [eax], 80h
		677	;--------------------------------------
		678	align 4
		679	@@:
		680	dec edi
		681	jnz .new_line
		682	jmp put_image_end_32.finish
2430	mario79	683	;------------------------------------------------------------------------------
2288	clevermous	684	align 4
		685	__sys_putpixel:
		686
		687	; eax = x coordinate
		688	; ebx = y coordinate
		689	; ecx = ?? RR GG BB ; 0x01000000 negation
2423	mario79	690	; 0x02000000 used for draw_rectangle without top line
		691	; for example drawwindow_III and drawwindow_IV
2288	clevermous	692	; edi = 0x00000001 force
		693
		694	;;; mov [novesachecksum], dword 0
		695	pushad
		696	cmp [Screen_Max_X], eax
		697	jb .exit
		698	cmp [Screen_Max_Y], ebx
		699	jb .exit
		700	test edi, 1 ; force ?
		701	jnz .forced
		702
		703	; not forced:
2438	mario79	704	mov edx, [d_width_calc_area + ebx*4]
		705	add edx, [_WinMapAddress]
2288	clevermous	706	movzx edx, byte [eax+edx]
		707	cmp edx, [CURRENT_TASK]
		708	jne .exit
2430	mario79	709	;--------------------------------------
		710	align 4
2288	clevermous	711	.forced:
		712	; check if negation
		713	test ecx, 0x01000000
		714	jz .noneg
2430	mario79	715
2288	clevermous	716	call getpixel
		717	not ecx
2430	mario79	718
		719	rol ecx, 8
		720	mov cl, [esp+32-8+3]
		721	ror ecx, 8
2288	clevermous	722	mov [esp+32-8], ecx
2430	mario79	723	;--------------------------------------
		724	align 4
2288	clevermous	725	.noneg:
		726	; OK to set pixel
		727	call dword [PUTPIXEL]; call the real put_pixel function
2430	mario79	728	;--------------------------------------
		729	align 4
2288	clevermous	730	.exit:
		731	popad
		732	ret
2430	mario79	733	;-----------------------------------------------------------------------------
2288	clevermous	734	align 4
		735	Vesa20_putpixel24:
		736	; eax = x
		737	; ebx = y
2430	mario79	738	mov ecx, eax
		739	shl ecx, 16
		740	mov cx, bx
		741
2446	mario79	742	; imul ebx, [BytesPerScanLine] ; ebx = y * y multiplier
		743	mov ebx, [d_width_calc_area + ebx*4]
		744	lea ebx, [ebx + ebx*2]
		745
2288	clevermous	746	lea edi, [eax+eax2]; edi = x3
		747	mov eax, [esp+32-8+4]
2430	mario79	748	;--------------------------------------
2448	mario79	749	; check for hardware cursor
		750	cmp [_display.select_cursor], 0
		751	jne @f
2430	mario79	752	; check mouse area for putpixel
		753	test eax, 0x04000000
		754	jnz @f
2436	mario79	755	call check_mouse_area_for_putpixel
2430	mario79	756	;--------------------------------------
		757	align 4
		758	@@:
		759	; store to real LFB
2288	clevermous	760	mov [LFB_BASE+ebx+edi], ax
		761	shr eax, 16
		762	mov [LFB_BASE+ebx+edi+2], al
2436	mario79	763	ret
		764	;-----------------------------------------------------------------------------
		765	align 4
		766	Vesa20_putpixel24_new:
		767	; eax = x
		768	; ebx = y
		769	mov ecx, eax
		770	shl ecx, 16
		771	mov cx, bx
		772
2446	mario79	773	; imul ebx, [BytesPerScanLine] ; ebx = y * y multiplier
		774	mov ebx, [d_width_calc_area + ebx*4]
		775	lea ebx, [ebx + ebx*2]
		776
2436	mario79	777	lea edi, [eax+eax2]; edi = x3
		778	mov eax, [esp+32-8+4]
2430	mario79	779	;--------------------------------------
2448	mario79	780	; check for hardware cursor
		781	cmp [_display.select_cursor], select_cursor
		782	jne @f
2436	mario79	783	; check mouse area for putpixel
		784	test eax, 0x04000000
		785	jnz @f
		786	;--------------------------------------
		787	; check for Y
		788	cmp cx, [Y_UNDER_subtraction_CUR_hot_y]
		789	jb @f
		790
		791	cmp cx, [Y_UNDER_sub_CUR_hot_y_add_curh]
		792	jae @f
		793
		794	rol ecx, 16
		795	;--------------------------------------
		796	; check for X
		797	cmp cx, [X_UNDER_subtraction_CUR_hot_x]
		798	jb @f
		799
		800	cmp cx, [X_UNDER_sub_CUR_hot_x_add_curh]
		801	jae @f
		802
		803	call check_mouse_area_for_putpixel_new.1
		804	;--------------------------------------
		805	align 4
		806	@@:
		807	; store to real LFB
		808	mov [LFB_BASE+ebx+edi], ax
		809	shr eax, 16
		810	mov [LFB_BASE+ebx+edi+2], al
2288	clevermous	811	ret
2430	mario79	812	;-----------------------------------------------------------------------------
2288	clevermous	813	align 4
		814	Vesa20_putpixel32:
		815	; eax = x
		816	; ebx = y
2430	mario79	817	mov ecx, eax
		818	shl ecx, 16
		819	mov cx, bx
		820
2446	mario79	821	; imul ebx, [BytesPerScanLine] ; ebx = y * y multiplier
		822	mov ebx, [d_width_calc_area + ebx*4]
		823	shl ebx, 2
		824
2288	clevermous	825	lea edi, [ebx+eax4]; edi = x4+(y*y multiplier)
		826	mov eax, [esp+32-8+4]; eax = color
2430	mario79	827	;--------------------------------------
2448	mario79	828	; check for hardware cursor
		829	cmp [_display.select_cursor], 0
		830	jne @f
2430	mario79	831	; check mouse area for putpixel
		832	test eax, 0x04000000
		833	jnz @f
2436	mario79	834	call check_mouse_area_for_putpixel
2430	mario79	835	;--------------------------------------
		836	align 4
		837	@@:
		838	and eax, 0xffffff
		839	; store to real LFB
2288	clevermous	840	mov [LFB_BASE+edi], eax
2436	mario79	841	ret
		842	;-----------------------------------------------------------------------------
		843	align 4
		844	Vesa20_putpixel32_new:
		845	; eax = x
		846	; ebx = y
		847	mov ecx, eax
		848	shl ecx, 16
		849	mov cx, bx
		850
2446	mario79	851	; imul ebx, [BytesPerScanLine] ; ebx = y * y multiplier
		852	mov ebx, [d_width_calc_area + ebx*4]
		853	shl ebx, 2
		854
2436	mario79	855	lea edi, [ebx+eax4]; edi = x4+(y*y multiplier)
		856	mov eax, [esp+32-8+4]; eax = color
2430	mario79	857	;--------------------------------------
2448	mario79	858	; check for hardware cursor
		859	cmp [_display.select_cursor], select_cursor
		860	jne @f
2436	mario79	861	; check mouse area for putpixel
		862	test eax, 0x04000000
		863	jnz @f
		864	;--------------------------------------
		865	; check for Y
		866	cmp cx, [Y_UNDER_subtraction_CUR_hot_y]
		867	jb @f
		868
		869	cmp cx, [Y_UNDER_sub_CUR_hot_y_add_curh]
		870	jae @f
		871
		872	rol ecx, 16
		873	;--------------------------------------
		874	; check for X
		875	cmp cx, [X_UNDER_subtraction_CUR_hot_x]
		876	jb @f
		877
		878	cmp cx, [X_UNDER_sub_CUR_hot_x_add_curh]
		879	jae @f
		880
		881	call check_mouse_area_for_putpixel_new.1
		882	;--------------------------------------
		883	align 4
		884	@@:
		885	and eax, 0xffffff
		886	; store to real LFB
		887	mov [LFB_BASE+edi], eax
2288	clevermous	888	ret
2430	mario79	889	;-----------------------------------------------------------------------------
		890	align 4
2288	clevermous	891	calculate_edi:
2446	mario79	892	; mov edi, ebx
		893	; imul edi, [Screen_Max_X]
		894	; add edi, ebx
		895	mov edi, [d_width_calc_area + ebx*4]
2288	clevermous	896	add edi, eax
		897	ret
2430	mario79	898	;-----------------------------------------------------------------------------
2288	clevermous	899	; DRAWLINE
2430	mario79	900	;-----------------------------------------------------------------------------
2288	clevermous	901	align 4
		902	__sys_draw_line:
		903	; draw a line
		904	; eax = HIWORD = x1
		905	; LOWORD = x2
		906	; ebx = HIWORD = y1
		907	; LOWORD = y2
		908	; ecx = color
		909	; edi = force ?
		910	pusha
		911
		912	dl_x1 equ esp+20
		913	dl_y1 equ esp+16
		914	dl_x2 equ esp+12
		915	dl_y2 equ esp+8
		916	dl_dx equ esp+4
		917	dl_dy equ esp+0
		918
		919	xor edx, edx ; clear edx
		920	xor esi, esi ; unpack arguments
		921	xor ebp, ebp
		922	mov si, ax ; esi = x2
		923	mov bp, bx ; ebp = y2
		924	shr eax, 16 ; eax = x1
		925	shr ebx, 16 ; ebx = y1
		926	push eax ; save x1
		927	push ebx ; save y1
		928	push esi ; save x2
		929	push ebp ; save y2
		930	; checking x-axis...
		931	sub esi, eax ; esi = x2-x1
		932	push esi ; save y2-y1
		933	jl .x2lx1 ; is x2 less than x1 ?
		934	jg .no_vline ; x1 > x2 ?
		935	mov edx, ebp ; else (if x1=x2)
		936	call vline
		937	push edx ; necessary to rightly restore stack frame at .exit
		938	jmp .exit
2430	mario79	939	;--------------------------------------
		940	align 4
2288	clevermous	941	.x2lx1:
		942	neg esi ; get esi absolute value
2430	mario79	943	;--------------------------------------
		944	align 4
2288	clevermous	945	.no_vline:
		946	; checking y-axis...
		947	sub ebp, ebx ; ebp = y2-y1
		948	push ebp ; save y2-y1
		949	jl .y2ly1 ; is y2 less than y1 ?
		950	jg .no_hline ; y1 > y2 ?
		951	mov edx, [dl_x2]; else (if y1=y2)
		952	call hline
		953	jmp .exit
2430	mario79	954	;--------------------------------------
		955	align 4
2288	clevermous	956	.y2ly1:
		957	neg ebp ; get ebp absolute value
2430	mario79	958	;--------------------------------------
		959	align 4
2288	clevermous	960	.no_hline:
		961	cmp ebp, esi
		962	jle .x_rules ; \|y2-y1\| < \|x2-x1\| ?
		963	cmp [dl_y2], ebx; make sure y1 is at the begining
		964	jge .no_reverse1
		965	neg dword [dl_dx]
		966	mov edx, [dl_x2]
		967	mov [dl_x2], eax
		968	mov [dl_x1], edx
		969	mov edx, [dl_y2]
		970	mov [dl_y2], ebx
		971	mov [dl_y1], edx
2430	mario79	972	;--------------------------------------
		973	align 4
2288	clevermous	974	.no_reverse1:
		975	mov eax, [dl_dx]
		976	cdq ; extend eax sing to edx
		977	shl eax, 16 ; using 16bit fix-point maths
		978	idiv ebp ; eax = ((x2-x1)*65536)/(y2-y1)
2353	mario79	979	;--------------------------------------
		980	; correction for the remainder of the division
		981	shl edx, 1
		982	cmp ebp, edx
		983	jb @f
		984	inc eax
2430	mario79	985	;--------------------------------------
		986	align 4
2353	mario79	987	@@:
		988	;--------------------------------------
2288	clevermous	989	mov edx, ebp ; edx = counter (number of pixels to draw)
		990	mov ebp, 1 *65536; <<16 ; ebp = dy = 1.0
		991	mov esi, eax ; esi = dx
		992	jmp .y_rules
2430	mario79	993	;--------------------------------------
		994	align 4
2288	clevermous	995	.x_rules:
		996	cmp [dl_x2], eax ; make sure x1 is at the begining
		997	jge .no_reverse2
		998	neg dword [dl_dy]
		999	mov edx, [dl_x2]
		1000	mov [dl_x2], eax
		1001	mov [dl_x1], edx
		1002	mov edx, [dl_y2]
		1003	mov [dl_y2], ebx
		1004	mov [dl_y1], edx
2430	mario79	1005	;--------------------------------------
		1006	align 4
2288	clevermous	1007	.no_reverse2:
		1008	xor edx, edx
		1009	mov eax, [dl_dy]
		1010	cdq ; extend eax sing to edx
		1011	shl eax, 16 ; using 16bit fix-point maths
		1012	idiv esi ; eax = ((y2-y1)*65536)/(x2-x1)
2353	mario79	1013	;--------------------------------------
		1014	; correction for the remainder of the division
		1015	shl edx, 1
		1016	cmp esi, edx
		1017	jb @f
		1018	inc eax
2430	mario79	1019	;--------------------------------------
		1020	align 4
2353	mario79	1021	@@:
		1022	;--------------------------------------
2288	clevermous	1023	mov edx, esi ; edx = counter (number of pixels to draw)
		1024	mov esi, 1 *65536;<< 16 ; esi = dx = 1.0
		1025	mov ebp, eax ; ebp = dy
2430	mario79	1026	;--------------------------------------
		1027	align 4
2288	clevermous	1028	.y_rules:
		1029	mov eax, [dl_x1]
		1030	mov ebx, [dl_y1]
		1031	shl eax, 16
		1032	shl ebx, 16
2455	mario79	1033
		1034	and ecx, 0xFBFFFFFF ;negate 0x04000000 save to mouseunder area
2353	mario79	1035	;-----------------------------------------------------------------------------
2288	clevermous	1036	align 4
		1037	.draw:
		1038	push eax ebx
2353	mario79	1039	;--------------------------------------
		1040	; correction for the remainder of the division
		1041	test ah, 0x80
		1042	jz @f
		1043	add eax, 1 shl 16
2430	mario79	1044	;--------------------------------------
		1045	align 4
2353	mario79	1046	@@:
		1047	;--------------------------------------
2288	clevermous	1048	shr eax, 16
2353	mario79	1049	;--------------------------------------
		1050	; correction for the remainder of the division
		1051	test bh, 0x80
		1052	jz @f
		1053	add ebx, 1 shl 16
2430	mario79	1054	;--------------------------------------
		1055	align 4
2353	mario79	1056	@@:
		1057	;--------------------------------------
2288	clevermous	1058	shr ebx, 16
2455	mario79	1059	; and ecx, 0xFBFFFFFF ;negate 0x04000000 save to mouseunder area
2453	mario79	1060	; call [putpixel]
		1061	call __sys_putpixel
2288	clevermous	1062	pop ebx eax
		1063	add ebx, ebp ; y = y+dy
		1064	add eax, esi ; x = x+dx
		1065	dec edx
		1066	jnz .draw
		1067	; force last drawn pixel to be at (x2,y2)
		1068	mov eax, [dl_x2]
		1069	mov ebx, [dl_y2]
2455	mario79	1070	; and ecx, 0xFBFFFFFF ;negate 0x04000000 save to mouseunder area
2453	mario79	1071	; call [putpixel]
		1072	call __sys_putpixel
2430	mario79	1073	;--------------------------------------
		1074	align 4
2288	clevermous	1075	.exit:
		1076	add esp, 6*4
		1077	popa
2430	mario79	1078	; call [draw_pointer]
2288	clevermous	1079	ret
2430	mario79	1080	;------------------------------------------------------------------------------
		1081	align 4
2288	clevermous	1082	hline:
		1083	; draw an horizontal line
		1084	; eax = x1
		1085	; edx = x2
		1086	; ebx = y
		1087	; ecx = color
		1088	; edi = force ?
		1089	push eax edx
		1090	cmp edx, eax ; make sure x2 is above x1
		1091	jge @f
		1092	xchg eax, edx
2430	mario79	1093	;--------------------------------------
		1094	align 4
2288	clevermous	1095	@@:
2430	mario79	1096	and ecx, 0xFBFFFFFF ;negate 0x04000000 save to mouseunder area
2455	mario79	1097	;--------------------------------------
		1098	align 4
		1099	@@:
2453	mario79	1100	; call [putpixel]
		1101	call __sys_putpixel
2288	clevermous	1102	inc eax
		1103	cmp eax, edx
		1104	jle @b
		1105	pop edx eax
		1106	ret
2430	mario79	1107	;------------------------------------------------------------------------------
		1108	align 4
2288	clevermous	1109	vline:
		1110	; draw a vertical line
		1111	; eax = x
		1112	; ebx = y1
		1113	; edx = y2
		1114	; ecx = color
		1115	; edi = force ?
		1116	push ebx edx
		1117	cmp edx, ebx ; make sure y2 is above y1
		1118	jge @f
		1119	xchg ebx, edx
2430	mario79	1120	;--------------------------------------
		1121	align 4
2288	clevermous	1122	@@:
2430	mario79	1123	and ecx, 0xFBFFFFFF ;negate 0x04000000 save to mouseunder area
2455	mario79	1124	;--------------------------------------
		1125	align 4
		1126	@@:
2453	mario79	1127	; call [putpixel]
		1128	call __sys_putpixel
2288	clevermous	1129	inc ebx
		1130	cmp ebx, edx
		1131	jle @b
		1132	pop edx ebx
		1133	ret
2430	mario79	1134	;------------------------------------------------------------------------------
		1135	align 4
2288	clevermous	1136	virtual at esp
		1137	drbar:
		1138	.bar_sx dd ?
		1139	.bar_sy dd ?
		1140	.bar_cx dd ?
		1141	.bar_cy dd ?
		1142	.abs_cx dd ?
		1143	.abs_cy dd ?
		1144	.real_sx dd ?
		1145	.real_sy dd ?
		1146	.color dd ?
		1147	.line_inc_scr dd ?
		1148	.line_inc_map dd ?
2430	mario79	1149	.real_sx_and_abs_cx dd ?
		1150	.real_sy_and_abs_cy dd ?
		1151	.stack_data = 4*13
2288	clevermous	1152	end virtual
2430	mario79	1153	;--------------------------------------
2288	clevermous	1154	align 4
		1155	; eax cx
		1156	; ebx cy
		1157	; ecx xe
		1158	; edx ye
		1159	; edi color
		1160	vesa20_drawbar:
		1161	pushad
		1162	sub esp, drbar.stack_data
		1163	mov [drbar.color], edi
		1164	sub edx, ebx
		1165	jle .exit ;// mike.dld, 2005-01-29
		1166	sub ecx, eax
		1167	jle .exit ;// mike.dld, 2005-01-29
		1168	mov [drbar.bar_sy], edx
		1169	mov [drbar.bar_sx], ecx
		1170	mov [drbar.bar_cx], eax
		1171	mov [drbar.bar_cy], ebx
		1172	mov edi, [TASK_BASE]
		1173	add eax, [edi-twdw + WDATA.box.left]; win_cx
		1174	add ebx, [edi-twdw + WDATA.box.top]; win_cy
		1175	mov [drbar.abs_cx], eax
		1176	mov [drbar.abs_cy], ebx
		1177	; real_sx = MIN(wnd_sx-bar_cx, bar_sx);
		1178	mov ebx, [edi-twdw + WDATA.box.width]; ebx = wnd_sx
		1179	; \begin{diamond}[20.08.2006]
		1180	; note that WDATA.box.width is one pixel less than real window x-size
		1181	inc ebx
		1182	; \end{diamond}[20.08.2006]
		1183	sub ebx, [drbar.bar_cx]
		1184	ja @f
2430	mario79	1185	;--------------------------------------
		1186	align 4
2288	clevermous	1187	.exit: ;// mike.dld, 2005-01-29
		1188	add esp, drbar.stack_data
		1189	popad
		1190	xor eax, eax
		1191	inc eax
		1192	ret
2430	mario79	1193	;--------------------------------------
		1194	align 4
2288	clevermous	1195	@@:
		1196	cmp ebx, [drbar.bar_sx]
		1197	jbe .end_x
		1198	mov ebx, [drbar.bar_sx]
2430	mario79	1199	;--------------------------------------
		1200	align 4
2288	clevermous	1201	.end_x:
		1202	mov [drbar.real_sx], ebx
		1203	; real_sy = MIN(wnd_sy-bar_cy, bar_sy);
		1204	mov ebx, [edi-twdw + WDATA.box.height]; ebx = wnd_sy
		1205	; \begin{diamond}[20.08.2006]
		1206	inc ebx
		1207	; \end{diamond}
		1208	sub ebx, [drbar.bar_cy]
		1209	ja @f
		1210	add esp, drbar.stack_data
		1211	popad
		1212	xor eax, eax
		1213	inc eax
		1214	ret
2430	mario79	1215	;--------------------------------------
		1216	align 4
2288	clevermous	1217	@@:
		1218	cmp ebx, [drbar.bar_sy]
		1219	jbe .end_y
		1220	mov ebx, [drbar.bar_sy]
2430	mario79	1221	;--------------------------------------
		1222	align 4
2288	clevermous	1223	.end_y:
		1224	mov [drbar.real_sy], ebx
		1225	; line_inc_map
		1226	mov eax, [Screen_Max_X]
		1227	sub eax, [drbar.real_sx]
		1228	inc eax
		1229	mov [drbar.line_inc_map], eax
		1230	; line_inc_scr
		1231	mov eax, [drbar.real_sx]
		1232	movzx ebx, byte [ScreenBPP]
		1233	shr ebx, 3
		1234	imul eax, ebx
		1235	neg eax
		1236	add eax, [BytesPerScanLine]
		1237	mov [drbar.line_inc_scr], eax
		1238	; pointer to screen
		1239	mov edx, [drbar.abs_cy]
2446	mario79	1240	; imul edx, [BytesPerScanLine]
		1241
		1242	mov edx, [d_width_calc_area + edx*4]
		1243	cmp bl, 4
		1244	je .32
		1245	lea edx, [edx+edx*2]
		1246	jmp @f
		1247	;-------------------------------------
		1248	align 4
		1249	.32:
		1250	shl edx, 2
		1251	;-------------------------------------
		1252	align 4
		1253	@@:
2288	clevermous	1254	mov eax, [drbar.abs_cx]
		1255	imul eax, ebx
		1256	add edx, eax
		1257	; pointer to pixel map
		1258	mov eax, [drbar.abs_cy]
2446	mario79	1259	; imul eax, [Screen_Max_X]
		1260	; add eax, [drbar.abs_cy]
		1261	mov eax, [d_width_calc_area + eax*4]
		1262
2288	clevermous	1263	add eax, [drbar.abs_cx]
		1264	add eax, [_WinMapAddress]
		1265	xchg eax, ebp
2430	mario79	1266	;--------------------------------------
		1267	mov ebx, [drbar.real_sx]
		1268	add ebx, [drbar.abs_cx]
		1269	mov [drbar.real_sx_and_abs_cx], ebx
		1270	mov ebx, [drbar.real_sy]
		1271	add ebx, [drbar.abs_cy]
		1272	mov [drbar.real_sy_and_abs_cy], ebx
		1273
		1274	add edx, LFB_BASE
		1275	;--------------------------------------
2288	clevermous	1276	; get process number
2446	mario79	1277	mov ebx, [CURRENT_TASK] ; bl - process num
		1278	mov esi, [drbar.real_sy]
		1279	mov eax, [drbar.color] ; BBGGRR00
		1280	rol eax, 8
		1281	mov bh, al ; 0x80 drawing gradient bars
		1282	ror eax, 8
2288	clevermous	1283	cmp byte [ScreenBPP], 24
		1284	jne draw_bar_end_32
2430	mario79	1285	;--------------------------------------
		1286	align 4
2288	clevermous	1287	draw_bar_end_24:
2446	mario79	1288	; eax - color high RRGGBB
2288	clevermous	1289	; bl - process num
		1290	; ecx - temp
		1291	; edx - pointer to screen
		1292	; esi - counter
		1293	; edi - counter
2453	mario79	1294	;--------------------------------------
		1295	; check for hardware cursor
2455	mario79	1296	mov ecx, [_display.select_cursor]
		1297	cmp ecx, select_cursor
		1298	je draw_bar_end_24_new
		1299	cmp ecx, 0
2453	mario79	1300	je draw_bar_end_24_old
2430	mario79	1301	;--------------------------------------
		1302	align 4
2288	clevermous	1303	.new_y:
		1304	mov edi, [drbar.real_sx]
2430	mario79	1305	;--------------------------------------
		1306	align 4
2288	clevermous	1307	.new_x:
		1308	cmp byte [ebp], bl
		1309	jne .skip
2430	mario79	1310	;--------------------------------------
2453	mario79	1311	; store to real LFB
		1312	mov [edx], ax
		1313	shr eax, 16
		1314	mov [edx + 2], al
		1315	;--------------------------------------
		1316	align 4
		1317	.skip:
		1318	; add pixel
		1319	add edx, 3
		1320	inc ebp
		1321	dec edi
		1322	jnz .new_x
		1323	; add line
		1324	add edx, [drbar.line_inc_scr]
		1325	add ebp, [drbar.line_inc_map]
		1326	; drawing gradient bars
		1327	test bh, 0x80
		1328	jz @f
		1329	test al, al
		1330	jz @f
		1331	dec al
		1332	;--------------------------------------
		1333	align 4
		1334	@@:
		1335	dec esi
		1336	jnz .new_y
		1337	;--------------------------------------
		1338	align 4
		1339	.end:
		1340	add esp, drbar.stack_data
		1341	popad
		1342	xor eax, eax
		1343	ret
		1344	;------------------------------------------------------------------------------
		1345	align 4
		1346	draw_bar_end_24_old:
		1347	;--------------------------------------
		1348	align 4
		1349	.new_y:
		1350	mov edi, [drbar.real_sx]
		1351	;--------------------------------------
		1352	align 4
		1353	.new_x:
		1354	cmp byte [ebp], bl
		1355	jne .skip
		1356	;--------------------------------------
2446	mario79	1357	mov ecx, [drbar.real_sx_and_abs_cx]
2430	mario79	1358	sub ecx, edi
		1359	shl ecx, 16
2446	mario79	1360	add ecx, [drbar.real_sy_and_abs_cy]
2430	mario79	1361	sub ecx, esi
		1362	; check mouse area for putpixel
		1363	call check_mouse_area_for_putpixel
		1364	; store to real LFB
		1365	mov [edx], ax
		1366	shr eax, 16
		1367	mov [edx + 2], al
2446	mario79	1368	mov eax, [drbar.color]
2430	mario79	1369	;--------------------------------------
		1370	align 4
2288	clevermous	1371	.skip:
		1372	; add pixel
		1373	add edx, 3
		1374	inc ebp
		1375	dec edi
		1376	jnz .new_x
		1377	; add line
		1378	add edx, [drbar.line_inc_scr]
		1379	add ebp, [drbar.line_inc_map]
2446	mario79	1380	; drawing gradient bars
		1381	test bh, 0x80
2288	clevermous	1382	jz @f
2446	mario79	1383	test al, al
2288	clevermous	1384	jz @f
2446	mario79	1385	dec al
2430	mario79	1386	;--------------------------------------
		1387	align 4
2288	clevermous	1388	@@:
		1389	dec esi
		1390	jnz .new_y
2453	mario79	1391	jmp draw_bar_end_24.end
		1392	;------------------------------------------------------------------------------
2430	mario79	1393	align 4
		1394	draw_bar_end_24_new:
		1395	;--------------------------------------
		1396	align 4
		1397	.new_y:
		1398	mov edi, [drbar.real_sx]
		1399	;--------------------------------------
		1400	align 4
		1401	.new_x:
		1402	cmp byte [ebp], bl
		1403	jne .skip
		1404	;--------------------------------------
		1405	mov ecx, [drbar.real_sy_and_abs_cy]
		1406	sub ecx, esi
		1407	;--------------------------------------
		1408	; check for Y
		1409	cmp cx, [Y_UNDER_subtraction_CUR_hot_y]
		1410	jb .no_mouse_area
2288	clevermous	1411
2430	mario79	1412	cmp cx, [Y_UNDER_sub_CUR_hot_y_add_curh]
		1413	jae .no_mouse_area
		1414
		1415	rol ecx, 16
		1416	add ecx, [drbar.real_sx_and_abs_cx]
		1417	sub ecx, edi
		1418	;--------------------------------------
		1419	; check for X
		1420	cmp cx, [X_UNDER_subtraction_CUR_hot_x]
		1421	jb .no_mouse_area
		1422
		1423	cmp cx, [X_UNDER_sub_CUR_hot_x_add_curh]
		1424	jae .no_mouse_area
		1425	;--------------------------------------
		1426	; check mouse area for putpixel
2477	mario79	1427	push eax
2430	mario79	1428	call check_mouse_area_for_putpixel_new.1
		1429	mov [edx], ax
		1430	shr eax, 16
		1431	mov [edx + 2], al
2477	mario79	1432	pop eax
2430	mario79	1433	jmp .skip
		1434	; store to real LFB
		1435	;--------------------------------------
		1436	align 4
		1437	.no_mouse_area:
2446	mario79	1438	mov [edx], ax
		1439	ror eax, 16
		1440	mov [edx + 2], al
		1441	rol eax, 16
2430	mario79	1442	;--------------------------------------
		1443	align 4
		1444	.skip:
		1445	; add pixel
		1446	add edx, 3
		1447	inc ebp
		1448	dec edi
		1449	jnz .new_x
		1450	; add line
		1451	add edx, [drbar.line_inc_scr]
		1452	add ebp, [drbar.line_inc_map]
2446	mario79	1453	; drawing gradient bars
		1454	test bh, 0x80
2430	mario79	1455	jz @f
2446	mario79	1456	test al, al
2430	mario79	1457	jz @f
2446	mario79	1458	dec al
2430	mario79	1459	;--------------------------------------
		1460	align 4
		1461	@@:
		1462	dec esi
		1463	jnz .new_y
		1464	jmp draw_bar_end_24.end
2453	mario79	1465	;------------------------------------------------------------------------------
2430	mario79	1466	align 4
2288	clevermous	1467	draw_bar_end_32:
2446	mario79	1468	; eax - color high RRGGBB
		1469	; bl - process num
		1470	; ecx - temp
		1471	; edx - pointer to screen
		1472	; esi - counter
		1473	; edi - counter
2453	mario79	1474	;--------------------------------------
		1475	; check for hardware cursor
2455	mario79	1476	mov ecx, [_display.select_cursor]
		1477	cmp ecx, select_cursor
		1478	je draw_bar_end_32_new
		1479	cmp ecx, 0
2453	mario79	1480	je draw_bar_end_32_old
2430	mario79	1481	;--------------------------------------
		1482	align 4
2288	clevermous	1483	.new_y:
		1484	mov edi, [drbar.real_sx]
2430	mario79	1485	;--------------------------------------
		1486	align 4
2288	clevermous	1487	.new_x:
		1488	cmp byte [ebp], bl
		1489	jne .skip
2430	mario79	1490	;--------------------------------------
		1491	; store to real LFB
		1492	mov [edx], eax
2446	mario79	1493	mov eax, [drbar.color]
2430	mario79	1494	;--------------------------------------
		1495	align 4
2288	clevermous	1496	.skip:
		1497	; add pixel
		1498	add edx, 4
		1499	inc ebp
		1500	dec edi
		1501	jnz .new_x
		1502	; add line
		1503	add edx, [drbar.line_inc_scr]
		1504	add ebp, [drbar.line_inc_map]
2446	mario79	1505	; drawing gradient bars
		1506	test bh, 0x80
2288	clevermous	1507	jz @f
		1508	test al, al
		1509	jz @f
		1510	dec al
2430	mario79	1511	;--------------------------------------
		1512	align 4
2288	clevermous	1513	@@:
		1514	dec esi
		1515	jnz .new_y
2430	mario79	1516	;--------------------------------------
		1517	align 4
		1518	.end:
2288	clevermous	1519	add esp, drbar.stack_data
		1520	popad
2436	mario79	1521	cmp [SCR_MODE], dword 0x12
		1522	jne @f
2288	clevermous	1523	call VGA_draw_bar
2436	mario79	1524	;--------------------------------------
		1525	align 4
		1526	@@:
2288	clevermous	1527	xor eax, eax
		1528	mov [EGA_counter], 1
		1529	ret
2453	mario79	1530	;------------------------------------------------------------------------------
		1531	align 4
		1532	draw_bar_end_32_old:
2430	mario79	1533	;--------------------------------------
		1534	align 4
2453	mario79	1535	.new_y:
		1536	mov edi, [drbar.real_sx]
		1537	;--------------------------------------
		1538	align 4
		1539	.new_x:
		1540	cmp byte [ebp], bl
		1541	jne .skip
		1542	;--------------------------------------
		1543	mov ecx, [drbar.real_sx_and_abs_cx]
		1544	sub ecx, edi
		1545	shl ecx, 16
		1546	add ecx, [drbar.real_sy_and_abs_cy]
		1547	sub ecx, esi
		1548
		1549	; check mouse area for putpixel
		1550	call check_mouse_area_for_putpixel
		1551	; store to real LFB
		1552	mov [edx], eax
		1553	mov eax, [drbar.color]
		1554	;--------------------------------------
		1555	align 4
		1556	.skip:
		1557	; add pixel
		1558	add edx, 4
		1559	inc ebp
		1560	dec edi
		1561	jnz .new_x
		1562	; add line
		1563	add edx, [drbar.line_inc_scr]
		1564	add ebp, [drbar.line_inc_map]
		1565	; drawing gradient bars
		1566	test bh, 0x80
		1567	jz @f
		1568	test al, al
		1569	jz @f
		1570	dec al
		1571	;--------------------------------------
		1572	align 4
		1573	@@:
		1574	dec esi
		1575	jnz .new_y
		1576	jmp draw_bar_end_32.end
		1577	;------------------------------------------------------------------------------
		1578	align 4
2430	mario79	1579	draw_bar_end_32_new:
		1580	;--------------------------------------
		1581	align 4
		1582	.new_y:
		1583	mov edi, [drbar.real_sx]
		1584	;--------------------------------------
		1585	align 4
		1586	.new_x:
		1587	cmp byte [ebp], bl
		1588	jne .skip
		1589	;--------------------------------------
		1590	mov ecx, [drbar.real_sy_and_abs_cy]
		1591	sub ecx, esi
		1592	;--------------------------------------
		1593	; check for Y
		1594	cmp cx, [Y_UNDER_subtraction_CUR_hot_y]
		1595	jb .no_mouse_area
2288	clevermous	1596
2430	mario79	1597	cmp cx, [Y_UNDER_sub_CUR_hot_y_add_curh]
		1598	jae .no_mouse_area
		1599
		1600	rol ecx, 16
		1601	add ecx, [drbar.real_sx_and_abs_cx]
		1602	sub ecx, edi
		1603	;--------------------------------------
		1604	; check for X
		1605	cmp cx, [X_UNDER_subtraction_CUR_hot_x]
		1606	jb .no_mouse_area
		1607
		1608	cmp cx, [X_UNDER_sub_CUR_hot_x_add_curh]
		1609	jae .no_mouse_area
		1610	;--------------------------------------
		1611	; check mouse area for putpixel
2477	mario79	1612	push eax
2430	mario79	1613	call check_mouse_area_for_putpixel_new.1
		1614	mov [edx], eax
2477	mario79	1615	pop eax
2430	mario79	1616	jmp .skip
		1617	; store to real LFB
		1618	;--------------------------------------
2288	clevermous	1619	align 4
2430	mario79	1620	.no_mouse_area:
		1621	mov [edx], eax
		1622	;--------------------------------------
		1623	align 4
		1624	.skip:
		1625	; add pixel
		1626	add edx, 4
		1627	inc ebp
		1628	dec edi
		1629	jnz .new_x
		1630	; add line
		1631	add edx, [drbar.line_inc_scr]
		1632	add ebp, [drbar.line_inc_map]
2446	mario79	1633	; drawing gradient bars
		1634	test bh, 0x80
2430	mario79	1635	jz @f
		1636	test al, al
		1637	jz @f
		1638	dec al
		1639	;--------------------------------------
		1640	align 4
		1641	@@:
		1642	dec esi
		1643	jnz .new_y
		1644	jmp draw_bar_end_32.end
		1645	;------------------------------------------------------------------------------
		1646	align 4
2288	clevermous	1647	vesa20_drawbackground_tiled:
		1648	pushad
		1649	; External loop for all y from start to end
		1650	mov ebx, [draw_data+32+RECT.top] ; y start
2430	mario79	1651	;--------------------------------------
		1652	align 4
2288	clevermous	1653	dp2:
		1654	mov ebp, [draw_data+32+RECT.left] ; x start
		1655	; 1) Calculate pointers in WinMapAddress (does pixel belong to OS thread?) [ebp]
		1656	; and LFB data (output for our function) [edi]
2446	mario79	1657	; mov eax, [BytesPerScanLine]
		1658	; mul ebx
		1659	mov eax, [d_width_calc_area + ebx*4]
		1660	cmp [ScreenBPP], byte 32
		1661	je .32
		1662	lea eax, [eax+eax*2]
		1663	jmp @f
		1664	;-------------------------------------
		1665	align 4
		1666	.32:
		1667	shl eax, 2
		1668	;-------------------------------------
		1669	align 4
		1670	@@:
2288	clevermous	1671	xchg ebp, eax
		1672	add ebp, eax
		1673	add ebp, eax
		1674	add ebp, eax
		1675	cmp [ScreenBPP], byte 24 ; 24 or 32 bpp ? - x size
		1676	jz @f
		1677	add ebp, eax
2430	mario79	1678	;--------------------------------------
		1679	align 4
2288	clevermous	1680	@@:
		1681	add ebp, LFB_BASE
		1682	; ebp:=YBytesPerScanLine+XBytesPerPixel+AddrLFB
		1683	call calculate_edi
		1684	xchg edi, ebp
		1685	add ebp, [_WinMapAddress]
		1686	; Now eax=x, ebx=y, edi->output, ebp=offset in WinMapAddress
		1687	; 2) Calculate offset in background memory block
		1688	push eax
		1689	xor edx, edx
		1690	mov eax, ebx
		1691	div dword [BgrDataHeight] ; edx := y mod BgrDataHeight
		1692	pop eax
		1693	push eax
		1694	mov ecx, [BgrDataWidth]
		1695	mov esi, edx
		1696	imul esi, ecx ; esi := (y mod BgrDataHeight) * BgrDataWidth
		1697	xor edx, edx
		1698	div ecx ; edx := x mod BgrDataWidth
		1699	sub ecx, edx
		1700	add esi, edx ; esi := (y mod BgrDataHeight)*BgrDataWidth + (x mod BgrDataWidth)
		1701	pop eax
		1702	lea esi, [esi*3]
		1703	add esi, [img_background]
		1704	xor edx, edx
		1705	inc edx
		1706	; 3) Loop through redraw rectangle and copy background data
		1707	; Registers meaning:
		1708	; eax = x, ebx = y (screen coordinates)
		1709	; ecx = deltax - number of pixels left in current tile block
		1710	; edx = 1
		1711	; esi -> bgr memory, edi -> output
		1712	; ebp = offset in WinMapAddress
2430	mario79	1713	;--------------------------------------
		1714	align 4
2288	clevermous	1715	dp3:
		1716	cmp [ebp], dl
		1717	jnz nbgp
2430	mario79	1718	;--------------------------------------
		1719	push eax ecx
		1720
		1721	mov ecx, eax
		1722	shl ecx, 16
		1723	add ecx, ebx
		1724
		1725	mov eax, [esi]
2448	mario79	1726
		1727	; check for hardware cursor
2451	mario79	1728	cmp [_display.select_cursor], select_cursor
		1729	je @f
2448	mario79	1730	cmp [_display.select_cursor], 0
		1731	jne .no_mouseunder
		1732	;--------------------------------------
		1733	align 4
		1734	@@:
2430	mario79	1735	and eax, 0xffffff
		1736	; check mouse area for putpixel
		1737	call [_display.check_mouse]
2448	mario79	1738	;--------------------------------------
		1739	align 4
		1740	.no_mouseunder:
2430	mario79	1741	; store to real LFB
		1742	mov [edi], ax
		1743	shr eax, 16
		1744	mov [edi+2], al
		1745
		1746	pop ecx eax
		1747	;--------------------------------------
		1748	align 4
2288	clevermous	1749	nbgp:
		1750	add esi, 3
		1751	add edi, 3
2430	mario79	1752	;--------------------------------------
		1753	align 4
2288	clevermous	1754	@@:
		1755	cmp [ScreenBPP], byte 25 ; 24 or 32 bpp?
		1756	sbb edi, -1 ; +1 for 32 bpp
		1757	; I do not use 'inc eax' because this is slightly slower then 'add eax,1'
		1758	add ebp, edx
		1759	add eax, edx
		1760	cmp eax, [draw_data+32+RECT.right]
		1761	ja dp4
		1762	sub ecx, edx
		1763	jnz dp3
		1764	; next tile block on x-axis
		1765	mov ecx, [BgrDataWidth]
		1766	sub esi, ecx
		1767	sub esi, ecx
		1768	sub esi, ecx
		1769	jmp dp3
2430	mario79	1770	;--------------------------------------
		1771	align 4
2288	clevermous	1772	dp4:
		1773	; next scan line
		1774	inc ebx
		1775	cmp ebx, [draw_data+32+RECT.bottom]
		1776	jbe dp2
		1777	popad
		1778	mov [EGA_counter], 1
2436	mario79	1779	cmp [SCR_MODE], dword 0x12
		1780	jne @f
2288	clevermous	1781	call VGA_drawbackground
2436	mario79	1782	;--------------------------------------
		1783	align 4
		1784	@@:
2288	clevermous	1785	ret
2430	mario79	1786	;------------------------------------------------------------------------------
		1787	align 4
2288	clevermous	1788	vesa20_drawbackground_stretch:
		1789	pushad
		1790	; Helper variables
		1791	; calculate 2^32*(BgrDataWidth-1) mod (ScreenWidth-1)
		1792	mov eax, [BgrDataWidth]
		1793	dec eax
		1794	xor edx, edx
		1795	div dword [Screen_Max_X]
		1796	push eax ; high
		1797	xor eax, eax
		1798	div dword [Screen_Max_X]
		1799	push eax ; low
		1800	; the same for height
		1801	mov eax, [BgrDataHeight]
		1802	dec eax
		1803	xor edx, edx
		1804	div dword [Screen_Max_Y]
		1805	push eax ; high
		1806	xor eax, eax
		1807	div dword [Screen_Max_Y]
		1808	push eax ; low
		1809	; External loop for all y from start to end
		1810	mov ebx, [draw_data+32+RECT.top] ; y start
		1811	mov ebp, [draw_data+32+RECT.left] ; x start
		1812	; 1) Calculate pointers in WinMapAddress (does pixel belong to OS thread?) [ebp]
		1813	; and LFB data (output for our function) [edi]
2446	mario79	1814	; mov eax, [BytesPerScanLine]
		1815	; mul ebx
		1816	mov eax, [d_width_calc_area + ebx*4]
		1817	cmp [ScreenBPP], byte 32
		1818	je .32
		1819	lea eax, [eax+eax*2]
		1820	jmp @f
		1821	;-------------------------------------
		1822	align 4
		1823	.32:
		1824	shl eax, 2
		1825	;-------------------------------------
		1826	align 4
		1827	@@:
		1828
2288	clevermous	1829	xchg ebp, eax
		1830	add ebp, eax
		1831	add ebp, eax
		1832	add ebp, eax
		1833	cmp [ScreenBPP], byte 24 ; 24 or 32 bpp ? - x size
		1834	jz @f
		1835	add ebp, eax
2430	mario79	1836	;--------------------------------------
		1837	align 4
2288	clevermous	1838	@@:
		1839	; ebp:=YBytesPerScanLine+XBytesPerPixel+AddrLFB
		1840	call calculate_edi
		1841	xchg edi, ebp
		1842	; Now eax=x, ebx=y, edi->output, ebp=offset in WinMapAddress
		1843	push ebx
		1844	push eax
		1845	; 2) Calculate offset in background memory block
		1846	mov eax, ebx
		1847	imul ebx, dword [esp+12]
		1848	mul dword [esp+8]
		1849	add edx, ebx ; edx:eax = y * 2^32*(BgrDataHeight-1)/(ScreenHeight-1)
		1850	mov esi, edx
		1851	imul esi, [BgrDataWidth]
		1852	push edx
		1853	push eax
		1854	mov eax, [esp+8]
		1855	mul dword [esp+28]
		1856	push eax
		1857	mov eax, [esp+12]
		1858	mul dword [esp+28]
		1859	add [esp], edx
		1860	pop edx ; edx:eax = x * 2^32*(BgrDataWidth-1)/(ScreenWidth-1)
		1861	add esi, edx
		1862	lea esi, [esi*3]
		1863	add esi, [img_background]
		1864	push eax
		1865	push edx
		1866	push esi
		1867	; 3) Smooth horizontal
2430	mario79	1868	;--------------------------------------
		1869	align 4
2288	clevermous	1870	bgr_resmooth0:
		1871	mov ecx, [esp+8]
		1872	mov edx, [esp+4]
		1873	mov esi, [esp]
		1874	push edi
		1875	mov edi, bgr_cur_line
		1876	call smooth_line
2430	mario79	1877	;--------------------------------------
		1878	align 4
2288	clevermous	1879	bgr_resmooth1:
		1880	mov eax, [esp+16+4]
		1881	inc eax
		1882	cmp eax, [BgrDataHeight]
		1883	jae bgr.no2nd
		1884	mov ecx, [esp+8+4]
		1885	mov edx, [esp+4+4]
		1886	mov esi, [esp+4]
		1887	add esi, [BgrDataWidth]
		1888	add esi, [BgrDataWidth]
		1889	add esi, [BgrDataWidth]
		1890	mov edi, bgr_next_line
		1891	call smooth_line
2430	mario79	1892	;--------------------------------------
		1893	align 4
2288	clevermous	1894	bgr.no2nd:
		1895	pop edi
2430	mario79	1896	;--------------------------------------
		1897	align 4
2288	clevermous	1898	sdp3:
		1899	xor esi, esi
		1900	mov ecx, [esp+12]
		1901	; 4) Loop through redraw rectangle and copy background data
		1902	; Registers meaning:
		1903	; esi = offset in current line, edi -> output
		1904	; ebp = offset in WinMapAddress
		1905	; dword [esp] = offset in bgr data
		1906	; qword [esp+4] = x * 2^32 * (BgrDataWidth-1) / (ScreenWidth-1)
		1907	; qword [esp+12] = y * 2^32 * (BgrDataHeight-1) / (ScreenHeight-1)
		1908	; dword [esp+20] = x
		1909	; dword [esp+24] = y
		1910	; precalculated constants:
		1911	; qword [esp+28] = 2^32*(BgrDataHeight-1)/(ScreenHeight-1)
		1912	; qword [esp+36] = 2^32*(BgrDataWidth-1)/(ScreenWidth-1)
2430	mario79	1913	;--------------------------------------
		1914	align 4
2288	clevermous	1915	sdp3a:
		1916	mov eax, [_WinMapAddress]
		1917	cmp [ebp+eax], byte 1
		1918	jnz snbgp
		1919	mov eax, [bgr_cur_line+esi]
		1920	test ecx, ecx
		1921	jz .novert
		1922	mov ebx, [bgr_next_line+esi]
		1923	call [overlapping_of_points_ptr]
2430	mario79	1924	;--------------------------------------
		1925	align 4
2288	clevermous	1926	.novert:
2430	mario79	1927	push ecx
2448	mario79	1928	; check for hardware cursor
2451	mario79	1929	cmp [_display.select_cursor], select_cursor
2459	mario79	1930	je @f
2448	mario79	1931	cmp [_display.select_cursor], 0
		1932	jne .no_mouseunder
		1933	;--------------------------------------
		1934	align 4
		1935	@@:
2430	mario79	1936	mov ecx, [esp+20+4] ;x
		1937	shl ecx, 16
		1938	add ecx, [esp+24+4] ;y
		1939	; check mouse area for putpixel
		1940	call [_display.check_mouse]
2448	mario79	1941	;--------------------------------------
		1942	align 4
		1943	.no_mouseunder:
2430	mario79	1944	; store to real LFB
2288	clevermous	1945	mov [LFB_BASE+edi], ax
		1946	shr eax, 16
		1947	mov [LFB_BASE+edi+2], al
2430	mario79	1948	pop ecx
		1949	;--------------------------------------
		1950	align 4
2288	clevermous	1951	snbgp:
		1952	cmp [ScreenBPP], byte 25
		1953	sbb edi, -4
		1954	add ebp, 1
		1955	mov eax, [esp+20]
		1956	add eax, 1
		1957	mov [esp+20], eax
		1958	add esi, 4
		1959	cmp eax, [draw_data+32+RECT.right]
		1960	jbe sdp3a
2430	mario79	1961	;--------------------------------------
		1962	align 4
2288	clevermous	1963	sdp4:
		1964	; next y
		1965	mov ebx, [esp+24]
		1966	add ebx, 1
		1967	mov [esp+24], ebx
		1968	cmp ebx, [draw_data+32+RECT.bottom]
		1969	ja sdpdone
		1970	; advance edi, ebp to next scan line
		1971	sub eax, [draw_data+32+RECT.left]
		1972	sub ebp, eax
		1973	add ebp, [Screen_Max_X]
		1974	add ebp, 1
		1975	sub edi, eax
		1976	sub edi, eax
		1977	sub edi, eax
		1978	cmp [ScreenBPP], byte 24
		1979	jz @f
		1980	sub edi, eax
2430	mario79	1981	;--------------------------------------
		1982	align 4
2288	clevermous	1983	@@:
		1984	add edi, [BytesPerScanLine]
		1985	; restore ecx,edx; advance esi to next background line
		1986	mov eax, [esp+28]
		1987	mov ebx, [esp+32]
		1988	add [esp+12], eax
		1989	mov eax, [esp+16]
		1990	adc [esp+16], ebx
		1991	sub eax, [esp+16]
		1992	mov ebx, eax
		1993	lea eax, [eax*3]
		1994	imul eax, [BgrDataWidth]
		1995	sub [esp], eax
		1996	mov eax, [draw_data+32+RECT.left]
		1997	mov [esp+20], eax
		1998	test ebx, ebx
		1999	jz sdp3
		2000	cmp ebx, -1
		2001	jnz bgr_resmooth0
		2002	push edi
		2003	mov esi, bgr_next_line
		2004	mov edi, bgr_cur_line
		2005	mov ecx, [Screen_Max_X]
		2006	inc ecx
		2007	rep movsd
		2008	jmp bgr_resmooth1
2430	mario79	2009	;--------------------------------------
		2010	align 4
2288	clevermous	2011	sdpdone:
		2012	add esp, 44
		2013	popad
		2014	mov [EGA_counter], 1
2436	mario79	2015	cmp [SCR_MODE], dword 0x12
		2016	jne @f
2288	clevermous	2017	call VGA_drawbackground
2436	mario79	2018	;--------------------------------------
		2019	align 4
		2020	@@:
2288	clevermous	2021	ret
		2022
		2023	uglobal
2430	mario79	2024	;--------------------------------------
2288	clevermous	2025	align 4
		2026	bgr_cur_line rd 1920 ; maximum width of screen
		2027	bgr_next_line rd 1920
2430	mario79	2028	;--------------------------------------
2288	clevermous	2029	endg
2430	mario79	2030	;--------------------------------------
		2031	align 4
2288	clevermous	2032	smooth_line:
		2033	mov al, [esi+2]
		2034	shl eax, 16
		2035	mov ax, [esi]
		2036	test ecx, ecx
		2037	jz @f
		2038	mov ebx, [esi+2]
		2039	shr ebx, 8
		2040	call [overlapping_of_points_ptr]
2430	mario79	2041	;--------------------------------------
		2042	align 4
2288	clevermous	2043	@@:
		2044	stosd
		2045	mov eax, [esp+20+8]
		2046	add eax, 1
		2047	mov [esp+20+8], eax
		2048	cmp eax, [draw_data+32+RECT.right]
		2049	ja @f
		2050	add ecx, [esp+36+8]
		2051	mov eax, edx
		2052	adc edx, [esp+40+8]
		2053	sub eax, edx
		2054	lea eax, [eax*3]
		2055	sub esi, eax
		2056	jmp smooth_line
2430	mario79	2057	;--------------------------------------
		2058	align 4
2288	clevermous	2059	@@:
		2060	mov eax, [draw_data+32+RECT.left]
		2061	mov [esp+20+8], eax
		2062	ret
2430	mario79	2063	;------------------------------------------------------------------------------
2288	clevermous	2064	align 16
		2065	overlapping_of_points:
		2066	if 0
		2067	; this version of procedure works, but is slower than next version
		2068	push ecx edx
		2069	mov edx, eax
		2070	push esi
		2071	shr ecx, 24
		2072	mov esi, ecx
		2073	mov ecx, ebx
		2074	movzx ebx, dl
		2075	movzx eax, cl
		2076	sub eax, ebx
		2077	movzx ebx, dh
		2078	imul eax, esi
		2079	add dl, ah
		2080	movzx eax, ch
		2081	sub eax, ebx
		2082	imul eax, esi
		2083	add dh, ah
		2084	ror ecx, 16
		2085	ror edx, 16
		2086	movzx eax, cl
		2087	movzx ebx, dl
		2088	sub eax, ebx
		2089	imul eax, esi
		2090	pop esi
		2091	add dl, ah
		2092	mov eax, edx
		2093	pop edx
		2094	ror eax, 16
		2095	pop ecx
		2096	ret
		2097	else
		2098	push ecx edx
		2099	mov edx, eax
		2100	push esi
		2101	shr ecx, 26
		2102	mov esi, ecx
		2103	mov ecx, ebx
		2104	shl esi, 9
		2105	movzx ebx, dl
		2106	movzx eax, cl
		2107	sub eax, ebx
		2108	movzx ebx, dh
		2109	add dl, [BgrAuxTable+(eax+0x100)+esi]
		2110	movzx eax, ch
		2111	sub eax, ebx
		2112	add dh, [BgrAuxTable+(eax+0x100)+esi]
		2113	ror ecx, 16
		2114	ror edx, 16
		2115	movzx eax, cl
		2116	movzx ebx, dl
		2117	sub eax, ebx
		2118	add dl, [BgrAuxTable+(eax+0x100)+esi]
		2119	pop esi
		2120	mov eax, edx
		2121	pop edx
		2122	ror eax, 16
		2123	pop ecx
		2124	ret
		2125	end if
		2126
		2127	iglobal
2430	mario79	2128	;--------------------------------------
2288	clevermous	2129	align 4
		2130	overlapping_of_points_ptr dd overlapping_of_points
2430	mario79	2131	;--------------------------------------
2288	clevermous	2132	endg
2430	mario79	2133	;------------------------------------------------------------------------------
		2134	align 4
2288	clevermous	2135	init_background:
		2136	mov edi, BgrAuxTable
		2137	xor edx, edx
2430	mario79	2138	;--------------------------------------
		2139	align 4
2288	clevermous	2140	.loop2:
		2141	mov eax, edx
		2142	shl eax, 8
		2143	neg eax
		2144	mov ecx, 0x200
2430	mario79	2145	;--------------------------------------
		2146	align 4
2288	clevermous	2147	.loop1:
		2148	mov byte [edi], ah
		2149	inc edi
		2150	add eax, edx
		2151	loop .loop1
		2152	add dl, 4
		2153	jnz .loop2
		2154	test byte [cpu_caps+(CAPS_MMX/8)], 1 shl (CAPS_MMX mod 8)
		2155	jz @f
		2156	mov [overlapping_of_points_ptr], overlapping_of_points_mmx
2430	mario79	2157	;--------------------------------------
		2158	align 4
2288	clevermous	2159	@@:
		2160	ret
2430	mario79	2161	;------------------------------------------------------------------------------
2288	clevermous	2162	align 16
		2163	overlapping_of_points_mmx:
		2164	movd mm0, eax
		2165	movd mm4, eax
		2166	movd mm1, ebx
		2167	pxor mm2, mm2
		2168	punpcklbw mm0, mm2
		2169	punpcklbw mm1, mm2
		2170	psubw mm1, mm0
		2171	movd mm3, ecx
		2172	psrld mm3, 24
		2173	packuswb mm3, mm3
		2174	packuswb mm3, mm3
		2175	pmullw mm1, mm3
		2176	psrlw mm1, 8
		2177	packuswb mm1, mm2
		2178	paddb mm4, mm1
		2179	movd eax, mm4
		2180	ret
2430	mario79	2181	;------------------------------------------------------------------------------

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(root)/kernel/trunk/video/vesa20.inc – Rev 2477