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: 2455 $
		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
		1427	call check_mouse_area_for_putpixel_new.1
		1428	mov [edx], ax
		1429	shr eax, 16
		1430	mov [edx + 2], al
2446	mario79	1431	mov eax, [drbar.color]
2430	mario79	1432	jmp .skip
		1433	; store to real LFB
		1434	;--------------------------------------
		1435	align 4
		1436	.no_mouse_area:
2446	mario79	1437	mov [edx], ax
		1438	ror eax, 16
		1439	mov [edx + 2], al
		1440	rol eax, 16
2430	mario79	1441	;--------------------------------------
		1442	align 4
		1443	.skip:
		1444	; add pixel
		1445	add edx, 3
		1446	inc ebp
		1447	dec edi
		1448	jnz .new_x
		1449	; add line
		1450	add edx, [drbar.line_inc_scr]
		1451	add ebp, [drbar.line_inc_map]
2446	mario79	1452	; drawing gradient bars
		1453	test bh, 0x80
2430	mario79	1454	jz @f
2446	mario79	1455	test al, al
2430	mario79	1456	jz @f
2446	mario79	1457	dec al
2430	mario79	1458	;--------------------------------------
		1459	align 4
		1460	@@:
		1461	dec esi
		1462	jnz .new_y
		1463	jmp draw_bar_end_24.end
2453	mario79	1464	;------------------------------------------------------------------------------
2430	mario79	1465	align 4
2288	clevermous	1466	draw_bar_end_32:
2446	mario79	1467	; eax - color high RRGGBB
		1468	; bl - process num
		1469	; ecx - temp
		1470	; edx - pointer to screen
		1471	; esi - counter
		1472	; edi - counter
2453	mario79	1473	;--------------------------------------
		1474	; check for hardware cursor
2455	mario79	1475	mov ecx, [_display.select_cursor]
		1476	cmp ecx, select_cursor
		1477	je draw_bar_end_32_new
		1478	cmp ecx, 0
2453	mario79	1479	je draw_bar_end_32_old
2430	mario79	1480	;--------------------------------------
		1481	align 4
2288	clevermous	1482	.new_y:
		1483	mov edi, [drbar.real_sx]
2430	mario79	1484	;--------------------------------------
		1485	align 4
2288	clevermous	1486	.new_x:
		1487	cmp byte [ebp], bl
		1488	jne .skip
2430	mario79	1489	;--------------------------------------
		1490	; store to real LFB
		1491	mov [edx], eax
2446	mario79	1492	mov eax, [drbar.color]
2430	mario79	1493	;--------------------------------------
		1494	align 4
2288	clevermous	1495	.skip:
		1496	; add pixel
		1497	add edx, 4
		1498	inc ebp
		1499	dec edi
		1500	jnz .new_x
		1501	; add line
		1502	add edx, [drbar.line_inc_scr]
		1503	add ebp, [drbar.line_inc_map]
2446	mario79	1504	; drawing gradient bars
		1505	test bh, 0x80
2288	clevermous	1506	jz @f
		1507	test al, al
		1508	jz @f
		1509	dec al
2430	mario79	1510	;--------------------------------------
		1511	align 4
2288	clevermous	1512	@@:
		1513	dec esi
		1514	jnz .new_y
2430	mario79	1515	;--------------------------------------
		1516	align 4
		1517	.end:
2288	clevermous	1518	add esp, drbar.stack_data
		1519	popad
2436	mario79	1520	cmp [SCR_MODE], dword 0x12
		1521	jne @f
2288	clevermous	1522	call VGA_draw_bar
2436	mario79	1523	;--------------------------------------
		1524	align 4
		1525	@@:
2288	clevermous	1526	xor eax, eax
		1527	mov [EGA_counter], 1
		1528	ret
2453	mario79	1529	;------------------------------------------------------------------------------
		1530	align 4
		1531	draw_bar_end_32_old:
2430	mario79	1532	;--------------------------------------
		1533	align 4
2453	mario79	1534	.new_y:
		1535	mov edi, [drbar.real_sx]
		1536	;--------------------------------------
		1537	align 4
		1538	.new_x:
		1539	cmp byte [ebp], bl
		1540	jne .skip
		1541	;--------------------------------------
		1542	mov ecx, [drbar.real_sx_and_abs_cx]
		1543	sub ecx, edi
		1544	shl ecx, 16
		1545	add ecx, [drbar.real_sy_and_abs_cy]
		1546	sub ecx, esi
		1547
		1548	; check mouse area for putpixel
		1549	call check_mouse_area_for_putpixel
		1550	; store to real LFB
		1551	mov [edx], eax
		1552	mov eax, [drbar.color]
		1553	;--------------------------------------
		1554	align 4
		1555	.skip:
		1556	; add pixel
		1557	add edx, 4
		1558	inc ebp
		1559	dec edi
		1560	jnz .new_x
		1561	; add line
		1562	add edx, [drbar.line_inc_scr]
		1563	add ebp, [drbar.line_inc_map]
		1564	; drawing gradient bars
		1565	test bh, 0x80
		1566	jz @f
		1567	test al, al
		1568	jz @f
		1569	dec al
		1570	;--------------------------------------
		1571	align 4
		1572	@@:
		1573	dec esi
		1574	jnz .new_y
		1575	jmp draw_bar_end_32.end
		1576	;------------------------------------------------------------------------------
		1577	align 4
2430	mario79	1578	draw_bar_end_32_new:
		1579	;--------------------------------------
		1580	align 4
		1581	.new_y:
		1582	mov edi, [drbar.real_sx]
		1583	;--------------------------------------
		1584	align 4
		1585	.new_x:
		1586	cmp byte [ebp], bl
		1587	jne .skip
		1588	;--------------------------------------
		1589	mov ecx, [drbar.real_sy_and_abs_cy]
		1590	sub ecx, esi
		1591	;--------------------------------------
		1592	; check for Y
		1593	cmp cx, [Y_UNDER_subtraction_CUR_hot_y]
		1594	jb .no_mouse_area
2288	clevermous	1595
2430	mario79	1596	cmp cx, [Y_UNDER_sub_CUR_hot_y_add_curh]
		1597	jae .no_mouse_area
		1598
		1599	rol ecx, 16
		1600	add ecx, [drbar.real_sx_and_abs_cx]
		1601	sub ecx, edi
		1602	;--------------------------------------
		1603	; check for X
		1604	cmp cx, [X_UNDER_subtraction_CUR_hot_x]
		1605	jb .no_mouse_area
		1606
		1607	cmp cx, [X_UNDER_sub_CUR_hot_x_add_curh]
		1608	jae .no_mouse_area
		1609	;--------------------------------------
		1610	; check mouse area for putpixel
		1611	call check_mouse_area_for_putpixel_new.1
		1612	mov [edx], eax
2446	mario79	1613	mov eax, [drbar.color]
2430	mario79	1614	jmp .skip
		1615	; store to real LFB
		1616	;--------------------------------------
2288	clevermous	1617	align 4
2430	mario79	1618	.no_mouse_area:
		1619	mov [edx], eax
		1620	;--------------------------------------
		1621	align 4
		1622	.skip:
		1623	; add pixel
		1624	add edx, 4
		1625	inc ebp
		1626	dec edi
		1627	jnz .new_x
		1628	; add line
		1629	add edx, [drbar.line_inc_scr]
		1630	add ebp, [drbar.line_inc_map]
2446	mario79	1631	; drawing gradient bars
		1632	test bh, 0x80
2430	mario79	1633	jz @f
		1634	test al, al
		1635	jz @f
		1636	dec al
		1637	;--------------------------------------
		1638	align 4
		1639	@@:
		1640	dec esi
		1641	jnz .new_y
		1642	jmp draw_bar_end_32.end
		1643	;------------------------------------------------------------------------------
		1644	align 4
2288	clevermous	1645	vesa20_drawbackground_tiled:
		1646	pushad
		1647	; External loop for all y from start to end
		1648	mov ebx, [draw_data+32+RECT.top] ; y start
2430	mario79	1649	;--------------------------------------
		1650	align 4
2288	clevermous	1651	dp2:
		1652	mov ebp, [draw_data+32+RECT.left] ; x start
		1653	; 1) Calculate pointers in WinMapAddress (does pixel belong to OS thread?) [ebp]
		1654	; and LFB data (output for our function) [edi]
2446	mario79	1655	; mov eax, [BytesPerScanLine]
		1656	; mul ebx
		1657	mov eax, [d_width_calc_area + ebx*4]
		1658	cmp [ScreenBPP], byte 32
		1659	je .32
		1660	lea eax, [eax+eax*2]
		1661	jmp @f
		1662	;-------------------------------------
		1663	align 4
		1664	.32:
		1665	shl eax, 2
		1666	;-------------------------------------
		1667	align 4
		1668	@@:
2288	clevermous	1669	xchg ebp, eax
		1670	add ebp, eax
		1671	add ebp, eax
		1672	add ebp, eax
		1673	cmp [ScreenBPP], byte 24 ; 24 or 32 bpp ? - x size
		1674	jz @f
		1675	add ebp, eax
2430	mario79	1676	;--------------------------------------
		1677	align 4
2288	clevermous	1678	@@:
		1679	add ebp, LFB_BASE
		1680	; ebp:=YBytesPerScanLine+XBytesPerPixel+AddrLFB
		1681	call calculate_edi
		1682	xchg edi, ebp
		1683	add ebp, [_WinMapAddress]
		1684	; Now eax=x, ebx=y, edi->output, ebp=offset in WinMapAddress
		1685	; 2) Calculate offset in background memory block
		1686	push eax
		1687	xor edx, edx
		1688	mov eax, ebx
		1689	div dword [BgrDataHeight] ; edx := y mod BgrDataHeight
		1690	pop eax
		1691	push eax
		1692	mov ecx, [BgrDataWidth]
		1693	mov esi, edx
		1694	imul esi, ecx ; esi := (y mod BgrDataHeight) * BgrDataWidth
		1695	xor edx, edx
		1696	div ecx ; edx := x mod BgrDataWidth
		1697	sub ecx, edx
		1698	add esi, edx ; esi := (y mod BgrDataHeight)*BgrDataWidth + (x mod BgrDataWidth)
		1699	pop eax
		1700	lea esi, [esi*3]
		1701	add esi, [img_background]
		1702	xor edx, edx
		1703	inc edx
		1704	; 3) Loop through redraw rectangle and copy background data
		1705	; Registers meaning:
		1706	; eax = x, ebx = y (screen coordinates)
		1707	; ecx = deltax - number of pixels left in current tile block
		1708	; edx = 1
		1709	; esi -> bgr memory, edi -> output
		1710	; ebp = offset in WinMapAddress
2430	mario79	1711	;--------------------------------------
		1712	align 4
2288	clevermous	1713	dp3:
		1714	cmp [ebp], dl
		1715	jnz nbgp
2430	mario79	1716	;--------------------------------------
		1717	push eax ecx
		1718
		1719	mov ecx, eax
		1720	shl ecx, 16
		1721	add ecx, ebx
		1722
		1723	mov eax, [esi]
2448	mario79	1724
		1725	; check for hardware cursor
2451	mario79	1726	cmp [_display.select_cursor], select_cursor
		1727	je @f
2448	mario79	1728	cmp [_display.select_cursor], 0
		1729	jne .no_mouseunder
		1730	;--------------------------------------
		1731	align 4
		1732	@@:
2430	mario79	1733	and eax, 0xffffff
		1734	; check mouse area for putpixel
		1735	call [_display.check_mouse]
2448	mario79	1736	;--------------------------------------
		1737	align 4
		1738	.no_mouseunder:
2430	mario79	1739	; store to real LFB
		1740	mov [edi], ax
		1741	shr eax, 16
		1742	mov [edi+2], al
		1743
		1744	pop ecx eax
		1745	;--------------------------------------
		1746	align 4
2288	clevermous	1747	nbgp:
		1748	add esi, 3
		1749	add edi, 3
2430	mario79	1750	;--------------------------------------
		1751	align 4
2288	clevermous	1752	@@:
		1753	cmp [ScreenBPP], byte 25 ; 24 or 32 bpp?
		1754	sbb edi, -1 ; +1 for 32 bpp
		1755	; I do not use 'inc eax' because this is slightly slower then 'add eax,1'
		1756	add ebp, edx
		1757	add eax, edx
		1758	cmp eax, [draw_data+32+RECT.right]
		1759	ja dp4
		1760	sub ecx, edx
		1761	jnz dp3
		1762	; next tile block on x-axis
		1763	mov ecx, [BgrDataWidth]
		1764	sub esi, ecx
		1765	sub esi, ecx
		1766	sub esi, ecx
		1767	jmp dp3
2430	mario79	1768	;--------------------------------------
		1769	align 4
2288	clevermous	1770	dp4:
		1771	; next scan line
		1772	inc ebx
		1773	cmp ebx, [draw_data+32+RECT.bottom]
		1774	jbe dp2
		1775	popad
		1776	mov [EGA_counter], 1
2436	mario79	1777	cmp [SCR_MODE], dword 0x12
		1778	jne @f
2288	clevermous	1779	call VGA_drawbackground
2436	mario79	1780	;--------------------------------------
		1781	align 4
		1782	@@:
2288	clevermous	1783	ret
2430	mario79	1784	;------------------------------------------------------------------------------
		1785	align 4
2288	clevermous	1786	vesa20_drawbackground_stretch:
		1787	pushad
		1788	; Helper variables
		1789	; calculate 2^32*(BgrDataWidth-1) mod (ScreenWidth-1)
		1790	mov eax, [BgrDataWidth]
		1791	dec eax
		1792	xor edx, edx
		1793	div dword [Screen_Max_X]
		1794	push eax ; high
		1795	xor eax, eax
		1796	div dword [Screen_Max_X]
		1797	push eax ; low
		1798	; the same for height
		1799	mov eax, [BgrDataHeight]
		1800	dec eax
		1801	xor edx, edx
		1802	div dword [Screen_Max_Y]
		1803	push eax ; high
		1804	xor eax, eax
		1805	div dword [Screen_Max_Y]
		1806	push eax ; low
		1807	; External loop for all y from start to end
		1808	mov ebx, [draw_data+32+RECT.top] ; y start
		1809	mov ebp, [draw_data+32+RECT.left] ; x start
		1810	; 1) Calculate pointers in WinMapAddress (does pixel belong to OS thread?) [ebp]
		1811	; and LFB data (output for our function) [edi]
2446	mario79	1812	; mov eax, [BytesPerScanLine]
		1813	; mul ebx
		1814	mov eax, [d_width_calc_area + ebx*4]
		1815	cmp [ScreenBPP], byte 32
		1816	je .32
		1817	lea eax, [eax+eax*2]
		1818	jmp @f
		1819	;-------------------------------------
		1820	align 4
		1821	.32:
		1822	shl eax, 2
		1823	;-------------------------------------
		1824	align 4
		1825	@@:
		1826
2288	clevermous	1827	xchg ebp, eax
		1828	add ebp, eax
		1829	add ebp, eax
		1830	add ebp, eax
		1831	cmp [ScreenBPP], byte 24 ; 24 or 32 bpp ? - x size
		1832	jz @f
		1833	add ebp, eax
2430	mario79	1834	;--------------------------------------
		1835	align 4
2288	clevermous	1836	@@:
		1837	; ebp:=YBytesPerScanLine+XBytesPerPixel+AddrLFB
		1838	call calculate_edi
		1839	xchg edi, ebp
		1840	; Now eax=x, ebx=y, edi->output, ebp=offset in WinMapAddress
		1841	push ebx
		1842	push eax
		1843	; 2) Calculate offset in background memory block
		1844	mov eax, ebx
		1845	imul ebx, dword [esp+12]
		1846	mul dword [esp+8]
		1847	add edx, ebx ; edx:eax = y * 2^32*(BgrDataHeight-1)/(ScreenHeight-1)
		1848	mov esi, edx
		1849	imul esi, [BgrDataWidth]
		1850	push edx
		1851	push eax
		1852	mov eax, [esp+8]
		1853	mul dword [esp+28]
		1854	push eax
		1855	mov eax, [esp+12]
		1856	mul dword [esp+28]
		1857	add [esp], edx
		1858	pop edx ; edx:eax = x * 2^32*(BgrDataWidth-1)/(ScreenWidth-1)
		1859	add esi, edx
		1860	lea esi, [esi*3]
		1861	add esi, [img_background]
		1862	push eax
		1863	push edx
		1864	push esi
		1865	; 3) Smooth horizontal
2430	mario79	1866	;--------------------------------------
		1867	align 4
2288	clevermous	1868	bgr_resmooth0:
		1869	mov ecx, [esp+8]
		1870	mov edx, [esp+4]
		1871	mov esi, [esp]
		1872	push edi
		1873	mov edi, bgr_cur_line
		1874	call smooth_line
2430	mario79	1875	;--------------------------------------
		1876	align 4
2288	clevermous	1877	bgr_resmooth1:
		1878	mov eax, [esp+16+4]
		1879	inc eax
		1880	cmp eax, [BgrDataHeight]
		1881	jae bgr.no2nd
		1882	mov ecx, [esp+8+4]
		1883	mov edx, [esp+4+4]
		1884	mov esi, [esp+4]
		1885	add esi, [BgrDataWidth]
		1886	add esi, [BgrDataWidth]
		1887	add esi, [BgrDataWidth]
		1888	mov edi, bgr_next_line
		1889	call smooth_line
2430	mario79	1890	;--------------------------------------
		1891	align 4
2288	clevermous	1892	bgr.no2nd:
		1893	pop edi
2430	mario79	1894	;--------------------------------------
		1895	align 4
2288	clevermous	1896	sdp3:
		1897	xor esi, esi
		1898	mov ecx, [esp+12]
		1899	; 4) Loop through redraw rectangle and copy background data
		1900	; Registers meaning:
		1901	; esi = offset in current line, edi -> output
		1902	; ebp = offset in WinMapAddress
		1903	; dword [esp] = offset in bgr data
		1904	; qword [esp+4] = x * 2^32 * (BgrDataWidth-1) / (ScreenWidth-1)
		1905	; qword [esp+12] = y * 2^32 * (BgrDataHeight-1) / (ScreenHeight-1)
		1906	; dword [esp+20] = x
		1907	; dword [esp+24] = y
		1908	; precalculated constants:
		1909	; qword [esp+28] = 2^32*(BgrDataHeight-1)/(ScreenHeight-1)
		1910	; qword [esp+36] = 2^32*(BgrDataWidth-1)/(ScreenWidth-1)
2430	mario79	1911	;--------------------------------------
		1912	align 4
2288	clevermous	1913	sdp3a:
		1914	mov eax, [_WinMapAddress]
		1915	cmp [ebp+eax], byte 1
		1916	jnz snbgp
		1917	mov eax, [bgr_cur_line+esi]
		1918	test ecx, ecx
		1919	jz .novert
		1920	mov ebx, [bgr_next_line+esi]
		1921	call [overlapping_of_points_ptr]
2430	mario79	1922	;--------------------------------------
		1923	align 4
2288	clevermous	1924	.novert:
2430	mario79	1925	push ecx
2448	mario79	1926	; check for hardware cursor
2451	mario79	1927	cmp [_display.select_cursor], select_cursor
		1928	jne @f
2448	mario79	1929	cmp [_display.select_cursor], 0
		1930	jne .no_mouseunder
		1931	;--------------------------------------
		1932	align 4
		1933	@@:
2430	mario79	1934	mov ecx, [esp+20+4] ;x
		1935	shl ecx, 16
		1936	add ecx, [esp+24+4] ;y
		1937	; check mouse area for putpixel
		1938	call [_display.check_mouse]
2448	mario79	1939	;--------------------------------------
		1940	align 4
		1941	.no_mouseunder:
2430	mario79	1942	; store to real LFB
2288	clevermous	1943	mov [LFB_BASE+edi], ax
		1944	shr eax, 16
		1945	mov [LFB_BASE+edi+2], al
2430	mario79	1946	pop ecx
		1947	;--------------------------------------
		1948	align 4
2288	clevermous	1949	snbgp:
		1950	cmp [ScreenBPP], byte 25
		1951	sbb edi, -4
		1952	add ebp, 1
		1953	mov eax, [esp+20]
		1954	add eax, 1
		1955	mov [esp+20], eax
		1956	add esi, 4
		1957	cmp eax, [draw_data+32+RECT.right]
		1958	jbe sdp3a
2430	mario79	1959	;--------------------------------------
		1960	align 4
2288	clevermous	1961	sdp4:
		1962	; next y
		1963	mov ebx, [esp+24]
		1964	add ebx, 1
		1965	mov [esp+24], ebx
		1966	cmp ebx, [draw_data+32+RECT.bottom]
		1967	ja sdpdone
		1968	; advance edi, ebp to next scan line
		1969	sub eax, [draw_data+32+RECT.left]
		1970	sub ebp, eax
		1971	add ebp, [Screen_Max_X]
		1972	add ebp, 1
		1973	sub edi, eax
		1974	sub edi, eax
		1975	sub edi, eax
		1976	cmp [ScreenBPP], byte 24
		1977	jz @f
		1978	sub edi, eax
2430	mario79	1979	;--------------------------------------
		1980	align 4
2288	clevermous	1981	@@:
		1982	add edi, [BytesPerScanLine]
		1983	; restore ecx,edx; advance esi to next background line
		1984	mov eax, [esp+28]
		1985	mov ebx, [esp+32]
		1986	add [esp+12], eax
		1987	mov eax, [esp+16]
		1988	adc [esp+16], ebx
		1989	sub eax, [esp+16]
		1990	mov ebx, eax
		1991	lea eax, [eax*3]
		1992	imul eax, [BgrDataWidth]
		1993	sub [esp], eax
		1994	mov eax, [draw_data+32+RECT.left]
		1995	mov [esp+20], eax
		1996	test ebx, ebx
		1997	jz sdp3
		1998	cmp ebx, -1
		1999	jnz bgr_resmooth0
		2000	push edi
		2001	mov esi, bgr_next_line
		2002	mov edi, bgr_cur_line
		2003	mov ecx, [Screen_Max_X]
		2004	inc ecx
		2005	rep movsd
		2006	jmp bgr_resmooth1
2430	mario79	2007	;--------------------------------------
		2008	align 4
2288	clevermous	2009	sdpdone:
		2010	add esp, 44
		2011	popad
		2012	mov [EGA_counter], 1
2436	mario79	2013	cmp [SCR_MODE], dword 0x12
		2014	jne @f
2288	clevermous	2015	call VGA_drawbackground
2436	mario79	2016	;--------------------------------------
		2017	align 4
		2018	@@:
2288	clevermous	2019	ret
		2020
		2021	uglobal
2430	mario79	2022	;--------------------------------------
2288	clevermous	2023	align 4
		2024	bgr_cur_line rd 1920 ; maximum width of screen
		2025	bgr_next_line rd 1920
2430	mario79	2026	;--------------------------------------
2288	clevermous	2027	endg
2430	mario79	2028	;--------------------------------------
		2029	align 4
2288	clevermous	2030	smooth_line:
		2031	mov al, [esi+2]
		2032	shl eax, 16
		2033	mov ax, [esi]
		2034	test ecx, ecx
		2035	jz @f
		2036	mov ebx, [esi+2]
		2037	shr ebx, 8
		2038	call [overlapping_of_points_ptr]
2430	mario79	2039	;--------------------------------------
		2040	align 4
2288	clevermous	2041	@@:
		2042	stosd
		2043	mov eax, [esp+20+8]
		2044	add eax, 1
		2045	mov [esp+20+8], eax
		2046	cmp eax, [draw_data+32+RECT.right]
		2047	ja @f
		2048	add ecx, [esp+36+8]
		2049	mov eax, edx
		2050	adc edx, [esp+40+8]
		2051	sub eax, edx
		2052	lea eax, [eax*3]
		2053	sub esi, eax
		2054	jmp smooth_line
2430	mario79	2055	;--------------------------------------
		2056	align 4
2288	clevermous	2057	@@:
		2058	mov eax, [draw_data+32+RECT.left]
		2059	mov [esp+20+8], eax
		2060	ret
2430	mario79	2061	;------------------------------------------------------------------------------
2288	clevermous	2062	align 16
		2063	overlapping_of_points:
		2064	if 0
		2065	; this version of procedure works, but is slower than next version
		2066	push ecx edx
		2067	mov edx, eax
		2068	push esi
		2069	shr ecx, 24
		2070	mov esi, ecx
		2071	mov ecx, ebx
		2072	movzx ebx, dl
		2073	movzx eax, cl
		2074	sub eax, ebx
		2075	movzx ebx, dh
		2076	imul eax, esi
		2077	add dl, ah
		2078	movzx eax, ch
		2079	sub eax, ebx
		2080	imul eax, esi
		2081	add dh, ah
		2082	ror ecx, 16
		2083	ror edx, 16
		2084	movzx eax, cl
		2085	movzx ebx, dl
		2086	sub eax, ebx
		2087	imul eax, esi
		2088	pop esi
		2089	add dl, ah
		2090	mov eax, edx
		2091	pop edx
		2092	ror eax, 16
		2093	pop ecx
		2094	ret
		2095	else
		2096	push ecx edx
		2097	mov edx, eax
		2098	push esi
		2099	shr ecx, 26
		2100	mov esi, ecx
		2101	mov ecx, ebx
		2102	shl esi, 9
		2103	movzx ebx, dl
		2104	movzx eax, cl
		2105	sub eax, ebx
		2106	movzx ebx, dh
		2107	add dl, [BgrAuxTable+(eax+0x100)+esi]
		2108	movzx eax, ch
		2109	sub eax, ebx
		2110	add dh, [BgrAuxTable+(eax+0x100)+esi]
		2111	ror ecx, 16
		2112	ror edx, 16
		2113	movzx eax, cl
		2114	movzx ebx, dl
		2115	sub eax, ebx
		2116	add dl, [BgrAuxTable+(eax+0x100)+esi]
		2117	pop esi
		2118	mov eax, edx
		2119	pop edx
		2120	ror eax, 16
		2121	pop ecx
		2122	ret
		2123	end if
		2124
		2125	iglobal
2430	mario79	2126	;--------------------------------------
2288	clevermous	2127	align 4
		2128	overlapping_of_points_ptr dd overlapping_of_points
2430	mario79	2129	;--------------------------------------
2288	clevermous	2130	endg
2430	mario79	2131	;------------------------------------------------------------------------------
		2132	align 4
2288	clevermous	2133	init_background:
		2134	mov edi, BgrAuxTable
		2135	xor edx, edx
2430	mario79	2136	;--------------------------------------
		2137	align 4
2288	clevermous	2138	.loop2:
		2139	mov eax, edx
		2140	shl eax, 8
		2141	neg eax
		2142	mov ecx, 0x200
2430	mario79	2143	;--------------------------------------
		2144	align 4
2288	clevermous	2145	.loop1:
		2146	mov byte [edi], ah
		2147	inc edi
		2148	add eax, edx
		2149	loop .loop1
		2150	add dl, 4
		2151	jnz .loop2
		2152	test byte [cpu_caps+(CAPS_MMX/8)], 1 shl (CAPS_MMX mod 8)
		2153	jz @f
		2154	mov [overlapping_of_points_ptr], overlapping_of_points_mmx
2430	mario79	2155	;--------------------------------------
		2156	align 4
2288	clevermous	2157	@@:
		2158	ret
2430	mario79	2159	;------------------------------------------------------------------------------
2288	clevermous	2160	align 16
		2161	overlapping_of_points_mmx:
		2162	movd mm0, eax
		2163	movd mm4, eax
		2164	movd mm1, ebx
		2165	pxor mm2, mm2
		2166	punpcklbw mm0, mm2
		2167	punpcklbw mm1, mm2
		2168	psubw mm1, mm0
		2169	movd mm3, ecx
		2170	psrld mm3, 24
		2171	packuswb mm3, mm3
		2172	packuswb mm3, mm3
		2173	pmullw mm1, mm3
		2174	psrlw mm1, 8
		2175	packuswb mm1, mm2
		2176	paddb mm4, mm1
		2177	movd eax, mm4
		2178	ret
2430	mario79	2179	;------------------------------------------------------------------------------

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(root)/kernel/trunk/video/vesa20.inc – Rev 2455