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

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

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