WebSVN – Kolibri OS – Diff – /kernel/trunk/video/vga.inc

Rev 9941		Rev 9977
1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2	;; ;;	2	;; ;;
3	;; Copyright (C) KolibriOS team 2004-2022. All rights reserved. ;;	3	;; Copyright (C) KolibriOS team 2004-2022. All rights reserved. ;;
4	;; Distributed under terms of the GNU General Public License ;;	4	;; Distributed under terms of the GNU General Public License ;;
5	;; ;;	5	;; ;;
6	;; VGA.INC ;;	6	;; VGA.INC ;;
7	;; ;;	7	;; ;;
8	;; 640x480 mode 0x12 VGA functions for MenuetOS ;;	8	;; 640x480 mode 0x12 VGA functions for MenuetOS ;;
9	;; ;;	9	;; ;;
10	;; Paul Butcher, paul.butcher@asa.co.uk ;;	10	;; Paul Butcher, paul.butcher@asa.co.uk ;;
11	;; ;;	11	;; ;;
12	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	12	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
13		13
14	$Revision: 9941 $	14	$Revision: 9977 $
15		15
16	;------------------------------------------------------------------------------	16	;------------------------------------------------------------------------------
17	align 4	17	align 4
18	paletteVGA:	18	paletteVGA:
19		19
20	;16 colour palette	20	;16 colour palette
21	mov dx, 0x3c8	21	mov dx, 0x3c8
22	mov al, 0	22	mov al, 0
23	out dx, al	23	out dx, al
24		24
25	mov ecx, 16	25	mov ecx, 16
26	mov dx, 0x3c9	26	mov dx, 0x3c9
27	xor eax, eax	27	xor eax, eax
28	;--------------------------------------	28	;--------------------------------------
29	align 4	29	align 4
30	palvganew:	30	palvganew:
31	mov al, 0	31	mov al, 0
32	test ah, 4	32	test ah, 4
33	jz palvgalbl1	33	jz palvgalbl1
34	add al, 31	34	add al, 31
35	test ah, 8	35	test ah, 8
36	jz palvgalbl1	36	jz palvgalbl1
37	add al, 32	37	add al, 32
38	;--------------------------------------	38	;--------------------------------------
39	align 4	39	align 4
40	palvgalbl1:	40	palvgalbl1:
41	out dx, al; red 0,31 or 63	41	out dx, al; red 0,31 or 63
42	mov al, 0	42	mov al, 0
43	test ah, 2	43	test ah, 2
44	jz palvgalbl2	44	jz palvgalbl2
45	add al, 31	45	add al, 31
46	test ah, 8	46	test ah, 8
47	jz palvgalbl2	47	jz palvgalbl2
48	add al, 32	48	add al, 32
49	;--------------------------------------	49	;--------------------------------------
50	align 4	50	align 4
51	palvgalbl2:	51	palvgalbl2:
52	out dx, al; blue 0,31 or 63	52	out dx, al; blue 0,31 or 63
53	mov al, 0	53	mov al, 0
54	test ah, 1	54	test ah, 1
55	jz palvgalbl3	55	jz palvgalbl3
56	add al, 31	56	add al, 31
57	test ah, 8	57	test ah, 8
58	jz palvgalbl3	58	jz palvgalbl3
59	add al, 32	59	add al, 32
60	;--------------------------------------	60	;--------------------------------------
61	align 4	61	align 4
62	palvgalbl3:	62	palvgalbl3:
63	out dx, al; green 0,31 or 63	63	out dx, al; green 0,31 or 63
64	add ah, 1	64	add ah, 1
65	loop palvganew	65	loop palvganew
66	; mov dx, 3ceh	66	; mov dx, 3ceh
67	; mov ax, 0005h	67	; mov ax, 0005h
68	; out dx, ax	68	; out dx, ax
69	ret	69	ret
70	;------------------------------------------------------------------------------	70	;------------------------------------------------------------------------------
71	align 4	71	align 4
72	palette320x200:	72	palette320x200:
73	mov edx, 0x3c8	73	mov edx, 0x3c8
74	xor eax, eax	74	xor eax, eax
75	out dx, al	75	out dx, al
76	mov ecx, 256	76	mov ecx, 256
77	mov edx, 0x3c9	77	mov edx, 0x3c9
78	xor eax, eax	78	xor eax, eax
79	;--------------------------------------	79	;--------------------------------------
80	align 4	80	align 4
81	palnew:	81	palnew:
82	mov al, 0	82	mov al, 0
83	test ah, 64	83	test ah, 64
84	jz pallbl1	84	jz pallbl1
85	add al, 21	85	add al, 21
86	;--------------------------------------	86	;--------------------------------------
87	align 4	87	align 4
88	pallbl1:	88	pallbl1:
89	test ah, 128	89	test ah, 128
90	jz pallbl2	90	jz pallbl2
91	add al, 42	91	add al, 42
92	;--------------------------------------	92	;--------------------------------------
93	align 4	93	align 4
94	pallbl2:	94	pallbl2:
95	out dx, al	95	out dx, al
96	mov al, 0	96	mov al, 0
97	test ah, 8	97	test ah, 8
98	jz pallbl3	98	jz pallbl3
99	add al, 8	99	add al, 8
100	;--------------------------------------	100	;--------------------------------------
101	align 4	101	align 4
102	pallbl3:	102	pallbl3:
103	test ah, 16	103	test ah, 16
104	jz pallbl4	104	jz pallbl4
105	add al, 15	105	add al, 15
106	;--------------------------------------	106	;--------------------------------------
107	align 4	107	align 4
108	pallbl4:	108	pallbl4:
109	test ah, 32	109	test ah, 32
110	jz pallbl5	110	jz pallbl5
111	add al, 40	111	add al, 40
112	;--------------------------------------	112	;--------------------------------------
113	align 4	113	align 4
114	pallbl5:	114	pallbl5:
115	out dx, al	115	out dx, al
116	mov al, 0	116	mov al, 0
117	test ah, 1	117	test ah, 1
118	jz pallbl6	118	jz pallbl6
119	add al, 8	119	add al, 8
120	;--------------------------------------	120	;--------------------------------------
121	align 4	121	align 4
122	pallbl6:	122	pallbl6:
123	test ah, 2	123	test ah, 2
124	jz pallbl7	124	jz pallbl7
125	add al, 15	125	add al, 15
126	;--------------------------------------	126	;--------------------------------------
127	align 4	127	align 4
128	pallbl7:	128	pallbl7:
129	test ah, 4	129	test ah, 4
130	jz pallbl8	130	jz pallbl8
131	add al, 40	131	add al, 40
132	;--------------------------------------	132	;--------------------------------------
133	align 4	133	align 4
134	pallbl8:	134	pallbl8:
135	out dx, al	135	out dx, al
136	add ah, 1	136	add ah, 1
137	loop palnew	137	loop palnew
138	ret	138	ret
139	;------------------------------------------------------------------------------	139	;------------------------------------------------------------------------------
140	align 4	140	align 4
141	uglobal	141	uglobal
142	novesachecksum dd 0x0	142	novesachecksum dd 0x0
143	EGA_counter db 0	143	EGA_counter db 0
144	VGA_drawing_screen db 0	144	VGA_drawing_screen db 0
145	VGA_8_pixels:	145	VGA_8_pixels:
146	rb 16	146	rb 16
147	temp:	147	temp:
148	.cx dd 0	148	.cx dd 0
149	endg	149	endg
150	;------------------------------------------------------------------------------	150	;------------------------------------------------------------------------------
151	align 4	151	align 4
152	checkVga_N13:	152	checkVga_N13:
153	cmp [SCR_MODE], 0x13	153	cmp [SCR_MODE], 0x13
154	jne @f	154	jne @f
155		155
156	pushad	156	pushad
157	cmp [EGA_counter], 1	157	cmp [EGA_counter], 1
158	je novesal	158	je novesal
159	mov ecx, [MOUSE_X]	159	mov ecx, [MOUSE_X]
160	cmp ecx, [novesachecksum]	160	cmp ecx, [novesachecksum]
161	jne novesal	161	jne novesal
162	popad	162	popad
163	;--------------------------------------	163	;--------------------------------------
164	align 4	164	align 4
165	@@:	165	@@:
166	ret	166	ret
167	;--------------------------------------	167	;--------------------------------------
168	align 4	168	align 4
169	novesal:	169	novesal:
170	mov [novesachecksum], ecx	170	mov [novesachecksum], ecx
171	xor ecx, ecx ;mov ecx, 0	171	xor ecx, ecx
172	movzx eax, word [MOUSE_Y]	172	movzx eax, word [MOUSE_Y]
173	cmp eax, 100	173	cmp eax, 100
174	jge m13l3	174	jge m13l3
175	mov eax, 100	175	mov eax, 100
176	;--------------------------------------	176	;--------------------------------------
177	align 4	177	align 4
178	m13l3:	178	m13l3:
179	cmp eax, 480-100	179	cmp eax, 480-100
180	jbe m13l4	180	jbe m13l4
181	mov eax, 480-100	181	mov eax, 480-100
182	;--------------------------------------	182	;--------------------------------------
183	align 4	183	align 4
184	m13l4:	184	m13l4:
185	sub eax, 100	185	sub eax, 100
186	imul eax, 640*4	186	imul eax, 640*4
187	add ecx, eax	187	add ecx, eax
188	movzx eax, word [MOUSE_X]	188	movzx eax, word [MOUSE_X]
189	cmp eax, 160	189	cmp eax, 160
190	jge m13l1	190	jge m13l1
191	mov eax, 160	191	mov eax, 160
192	;--------------------------------------	192	;--------------------------------------
193	align 4	193	align 4
194	m13l1:	194	m13l1:
195	cmp eax, 640-160	195	cmp eax, 640-160
196	jbe m13l2	196	jbe m13l2
197	mov eax, 640-160	197	mov eax, 640-160
198	;--------------------------------------	198	;--------------------------------------
199	align 4	199	align 4
200	m13l2:	200	m13l2:
201	sub eax, 160	201	sub eax, 160
202	shl eax, 2	202	shl eax, 2
203	add ecx, eax	203	add ecx, eax
204	mov esi, [LFBAddress]	204	mov esi, [LFBAddress]
205	add esi, ecx	205	add esi, ecx
206	mov edi, VGABasePtr	206	mov edi, VGABasePtr
207	mov edx, 200	207	mov edx, 200
208	mov ecx, 320	208	mov ecx, 320
209	cld	209	cld
210	;--------------------------------------	210	;--------------------------------------
211	align 4	211	align 4
212	m13pix:	212	m13pix:
213	lodsd	213	lodsd
214	test eax, eax	214	test eax, eax
215	jz .save_pixel	215	jz .save_pixel
216	push eax	216	push eax
217	mov ebx, eax	217	mov ebx, eax
218	and eax, (128+64+32) ; blue	218	and eax, (128+64+32) ; blue
219	shr eax, 5	219	shr eax, 5
220	and ebx, (128+64+32)*256; green	220	and ebx, (128+64+32)*256; green
221	shr ebx, 8+2	221	shr ebx, 8+2
222	add eax, ebx	222	add eax, ebx
223	pop ebx	223	pop ebx
224	and ebx, (128+64)256256; red	224	and ebx, (128+64)256256; red
225	shr ebx, 8+8	225	shr ebx, 8+8
226	add eax, ebx	226	add eax, ebx
227	;--------------------------------------	227	;--------------------------------------
228	align 4	228	align 4
229	.save_pixel:	229	.save_pixel:
230	stosb	230	stosb
231	loop m13pix	231	loop m13pix
232	mov ecx, 320	232	mov ecx, 320
233	add esi, 4*(640-320)	233	add esi, 4*(640-320)
234	dec edx	234	dec edx
235	jnz m13pix	235	jnz m13pix
236	mov [EGA_counter], 0	236	mov [EGA_counter], 0
237	popad	237	popad
238	ret	238	ret
239	;------------------------------------------------------------------------------	239	;------------------------------------------------------------------------------
240	align 4	240	align 4
241	VGA_drawbackground:	241	VGA_drawbackground:
242	; draw all	242	; draw all
243	pushad	243	pushad
244	mov esi, [LFBAddress]	244	mov esi, [LFBAddress]
245	mov edi, VGABasePtr	245	mov edi, VGABasePtr
246	mov ebx, 640/32; 640480/(84)	246	mov ebx, 640/32; 640480/(84)
247	mov edx, 480	247	mov edx, 480
248	;--------------------------------------	248	;--------------------------------------
249	align 4	249	align 4
250	@@:	250	@@:
251	push ebx edx esi edi	251	push ebx edx esi edi
252	shl edx, 9	252	shl edx, 9
253	lea edx, [edx + edx*4]	253	lea edx, [edx + edx*4]
254	add esi, edx	254	add esi, edx
255	shr edx, 5	255	shr edx, 5
256	add edi, edx	256	add edi, edx
257	call VGA_draw_long_line	257	call VGA_draw_long_line
258	pop edi esi edx ebx	258	pop edi esi edx ebx
259	dec edx	259	dec edx
260	jnz @r	260	jnz @r
261	call VGA_draw_long_line_1	261	call VGA_draw_long_line_1
262	popad	262	popad
263	ret	263	ret
264	;------------------------------------------------------------------------------	264	;------------------------------------------------------------------------------
265	align 4	265	align 4
266	VGA_draw_long_line:	266	VGA_draw_long_line:
267	mov dx, 3ceh	267	mov dx, 3ceh
268	mov ax, 0ff08h	268	mov ax, 0ff08h
269	cli	269	cli
270	out dx, ax	270	out dx, ax
271	mov ax, 0005h	271	mov ax, 0005h
272	out dx, ax	272	out dx, ax
273	;--------------------------------------	273	;--------------------------------------
274	align 4	274	align 4
275	m12pix:	275	m12pix:
276	call VGA_draw_32_pixels	276	call VGA_draw_32_pixels
277	dec ebx	277	dec ebx
278	jnz m12pix	278	jnz m12pix
279	mov dx, 3c4h	279	mov dx, 3c4h
280	mov ax, 0ff02h	280	mov ax, 0ff02h
281	out dx, ax	281	out dx, ax
282	mov dx, 3ceh	282	mov dx, 3ceh
283	mov ax, 0205h	283	mov ax, 0205h
284	out dx, ax	284	out dx, ax
285	mov dx, 3ceh	285	mov dx, 3ceh
286	mov al, 08h	286	mov al, 08h
287	out dx, al	287	out dx, al
288	sti	288	sti
289	ret	289	ret
290	;------------------------------------------------------------------------------	290	;------------------------------------------------------------------------------
291	align 4	291	align 4
292	VGA_draw_32_pixels:	292	VGA_draw_32_pixels:
293	xor eax, eax	293	xor eax, eax
294	mov ebp, VGA_8_pixels	294	mov ebp, VGA_8_pixels
295	mov [ebp], eax	295	mov [ebp], eax
296	mov [ebp+4], eax	296	mov [ebp+4], eax
297	mov [ebp+8], eax	297	mov [ebp+8], eax
298	mov [ebp+12], eax	298	mov [ebp+12], eax
299	mov ch, 4	299	mov ch, 4
300	;--------------------------------------	300	;--------------------------------------
301	align 4	301	align 4
302	.main_loop:	302	.main_loop:
303	mov cl, 8	303	mov cl, 8
304	;--------------------------------------	304	;--------------------------------------
305	align 4	305	align 4
306	.convert_pixels_to_VGA:	306	.convert_pixels_to_VGA:
307	lodsd ; eax = 24bit colour	307	lodsd ; eax = 24bit colour
308	test eax, eax	308	test eax, eax
309	jz .end	309	jz .end
310	rol eax, 8	310	rol eax, 8
311	mov al, ch	311	mov al, ch
312	ror eax, 8	312	ror eax, 8
313	mov ch, 1	313	mov ch, 1
314	dec cl	314	dec cl
315	shl ch, cl	315	shl ch, cl
316	cmp al, 85	316	cmp al, 85
317	jbe .p13green	317	jbe .p13green
318	or [ebp], ch	318	or [ebp], ch
319	cmp al, 170	319	cmp al, 170
320	jbe .p13green	320	jbe .p13green
321	or [ebp+12], ch	321	or [ebp+12], ch
322	;--------------------------------------	322	;--------------------------------------
323	align 4	323	align 4
324	.p13green:	324	.p13green:
325	cmp ah, 85	325	cmp ah, 85
326	jbe .p13red	326	jbe .p13red
327	or [ebp+4], ch	327	or [ebp+4], ch
328	cmp ah, 170	328	cmp ah, 170
329	jbe .p13red	329	jbe .p13red
330	or [ebp+12], ch	330	or [ebp+12], ch
331	;--------------------------------------	331	;--------------------------------------
332	align 4	332	align 4
333	.p13red:	333	.p13red:
334	shr eax, 8	334	shr eax, 8
335	cmp ah, 85	335	cmp ah, 85
336	jbe .p13cont	336	jbe .p13cont
337	or [ebp+8], ch	337	or [ebp+8], ch
338	cmp ah, 170	338	cmp ah, 170
339	jbe .p13cont	339	jbe .p13cont
340	or [ebp+12], ch	340	or [ebp+12], ch
341	;--------------------------------------	341	;--------------------------------------
342	align 4	342	align 4
343	.p13cont:	343	.p13cont:
344	ror eax, 8	344	ror eax, 8
345	mov ch, ah	345	mov ch, ah
346	inc cl	346	inc cl
347	;--------------------------------------	347	;--------------------------------------
348	align 4	348	align 4
349	.end:	349	.end:
350	dec cl	350	dec cl
351	jnz .convert_pixels_to_VGA	351	jnz .convert_pixels_to_VGA
352	inc ebp	352	inc ebp
353	dec ch	353	dec ch
354	jnz .main_loop	354	jnz .main_loop
355	push esi	355	push esi
356	sub ebp, 4	356	sub ebp, 4
357	mov esi, ebp	357	mov esi, ebp
358	mov dx, 3c4h	358	mov dx, 3c4h
359	mov ah, 1h	359	mov ah, 1h
360	;--------------------------------------	360	;--------------------------------------
361	align 4	361	align 4
362	@@:	362	@@:
363	mov al, 02h	363	mov al, 02h
364	out dx, ax	364	out dx, ax
365	xchg ax, bp	365	xchg ax, bp
366	lodsd	366	lodsd
367	mov [edi], eax	367	mov [edi], eax
368	xchg ax, bp	368	xchg ax, bp
369	shl ah, 1	369	shl ah, 1
370	cmp ah, 10h	370	cmp ah, 10h
371	jnz @r	371	jnz @r
372	add edi, 4	372	add edi, 4
373	pop esi	373	pop esi
374	ret	374	ret
375	;------------------------------------------------------------------------------	375	;------------------------------------------------------------------------------
376	align 4	376	align 4
377	VGA_putpixel:	377	VGA_putpixel:
378	; eax = x	378	; eax = x
379	; ebx = y	379	; ebx = y
380	mov ecx, eax	380	mov ecx, eax
381	mov eax, [esp + 32-8+4] ; color	381	mov eax, [esp + 32-8+4] ; color
382	;--------------------------------------	382	;--------------------------------------
383	; check for hardware cursor	383	; check for hardware cursor
384	cmp [_display.select_cursor], select_cursor	384	cmp [_display.select_cursor], select_cursor
385	jne .no_mouseunder	385	jne .no_mouseunder
386	;--------------------------------------	386	;--------------------------------------
387	align 4	387	align 4
388	push ecx	388	push ecx
389	shl ecx, 16	389	shl ecx, 16
390	mov cx, bx	390	mov cx, bx
391	; check mouse area for putpixel	391	; check mouse area for putpixel
392	test eax, 0x04000000	392	test eax, 0x04000000
393	jnz @f	393	jnz @f
394		394
395	call [_display.check_mouse]	395	call [_display.check_mouse]
396	;--------------------------------------	396	;--------------------------------------
397	align 4	397	align 4
398	@@:	398	@@:
399	pop ecx	399	pop ecx
400	;--------------------------------------	400	;--------------------------------------
401	align 4	401	align 4
402	.no_mouseunder:	402	.no_mouseunder:
403	shl ebx, 9	403	shl ebx, 9
404	lea ebx, [ebx + ebx*4] ; multiply by 5	404	lea ebx, [ebx + ebx*4] ; multiply by 5
405	lea edx, [ebx + ecx4] ; + xBytesPerPixel (Vesa2.0 32)	405	lea edx, [ebx + ecx4] ; + xBytesPerPixel (Vesa2.0 32)
406	mov edi, edx	406	mov edi, edx
407	add edi, [LFBAddress] ; + LFB address	407	add edi, [LFBAddress] ; + LFB address
408	mov [edi], eax ; write to LFB for Vesa2.0	408	mov [edi], eax ; write to LFB for Vesa2.0
409	shr edx, 5 ; change BytesPerPixel to 1/8	409	shr edx, 5 ; change BytesPerPixel to 1/8
410	mov edi, edx	410	mov edi, edx
411	add edi, VGABasePtr ; address of pixel in VGA area	411	add edi, VGABasePtr ; address of pixel in VGA area
412	and ecx, 0x07 ; bit no. (modulo 8)	412	and ecx, 0x07 ; bit no. (modulo 8)
413	pushfd	413	pushfd
414	; edi = address, eax = 24bit colour, ecx = bit no. (modulo 8)	414	; edi = address, eax = 24bit colour, ecx = bit no. (modulo 8)
415	xor edx, edx	415	xor edx, edx
416	test eax, eax	416	test eax, eax
417	jz .p13cont	417	jz .p13cont
418	cmp al, 85	418	cmp al, 85
419	jbe .p13green	419	jbe .p13green
420	or dl, 0x01	420	or dl, 0x01
421	cmp al, 170	421	cmp al, 170
422	jbe .p13green	422	jbe .p13green
423	or dl, 0x08	423	or dl, 0x08
424	;--------------------------------------	424	;--------------------------------------
425	align 4	425	align 4
426	.p13green:	426	.p13green:
427	cmp ah, 85	427	cmp ah, 85
428	jbe .p13red	428	jbe .p13red
429	or dl, 0x02	429	or dl, 0x02
430	cmp ah, 170	430	cmp ah, 170
431	jbe .p13red	431	jbe .p13red
432	or dl, 0x08	432	or dl, 0x08
433	;--------------------------------------	433	;--------------------------------------
434	align 4	434	align 4
435	.p13red:	435	.p13red:
436	shr eax, 8	436	shr eax, 8
437	cmp ah, 85	437	cmp ah, 85
438	jbe .p13cont	438	jbe .p13cont
439	or dl, 0x04	439	or dl, 0x04
440	cmp ah, 170	440	cmp ah, 170
441	jbe .p13cont	441	jbe .p13cont
442	or dl, 0x08	442	or dl, 0x08
443	;--------------------------------------	443	;--------------------------------------
444	align 4	444	align 4
445	.p13cont:	445	.p13cont:
446	ror edx, 8	446	ror edx, 8
447	inc cl	447	inc cl
448	xor eax, eax	448	xor eax, eax
449	inc ah	449	inc ah
450	shr ax, cl	450	shr ax, cl
451	mov dx, 3cfh	451	mov dx, 3cfh
452	cli	452	cli
453	out dx, al	453	out dx, al
454	mov al, [edi] ; dummy read	454	mov al, [edi] ; dummy read
455	rol edx, 8	455	rol edx, 8
456	mov [edi], dl	456	mov [edi], dl
457	popfd	457	popfd
458	ret	458	ret
459	;------------------------------------------------------------------------------	459	;------------------------------------------------------------------------------
460	align 4	460	align 4
461	VGA__putimage:	461	VGA__putimage:
462	; ecx = size [x\|y]	462	; ecx = size [x\|y]
463	; edx = coordinates [x\|y]	463	; edx = coordinates [x\|y]
464	pushad	464	pushad
465	rol edx, 16	465	rol edx, 16
466	movzx eax, dx	466	movzx eax, dx
467	rol edx, 16	467	rol edx, 16
468	movzx ebx, dx	468	movzx ebx, dx
469	movzx edx, cx	469	movzx edx, cx
470	rol ecx, 16	470	rol ecx, 16
471	movzx ecx, cx	471	movzx ecx, cx
472	call VGA_draw_bar_1	472	call VGA_draw_bar_1
473	popad	473	popad
474	ret	474	ret
475	;------------------------------------------------------------------------------	475	;------------------------------------------------------------------------------
476	align 4	476	align 4
477	VGA_draw_bar:	477	VGA_draw_bar:
478	; eax cx	478	; eax cx
479	; ebx cy	479	; ebx cy
480	; ecx xe	480	; ecx xe
481	; edx ye	481	; edx ye
482	pushad	482	pushad
483	sub ecx, eax	483	sub ecx, eax
484	sub edx, ebx	484	sub edx, ebx
485	and eax, 0xffff	485	and eax, 0xffff
486	and ebx, 0xffff	486	and ebx, 0xffff
487	and ecx, 0xffff	487	and ecx, 0xffff
488	and edx, 0xffff	488	and edx, 0xffff
489	call VGA_draw_bar_1	489	call VGA_draw_bar_1
490	popad	490	popad
491	ret	491	ret
492	;------------------------------------------------------------------------------	492	;------------------------------------------------------------------------------
493	align 4	493	align 4
494	VGA_draw_bar_1:	494	VGA_draw_bar_1:
495	mov [temp.cx], eax	495	mov [temp.cx], eax
496	mov eax, [current_slot]	496	mov eax, [current_slot]
497	mov eax, [eax + APPDATA.window]	497	mov eax, [eax + APPDATA.window]
498	add ebx, [eax + WDATA.box.top]	498	add ebx, [eax + WDATA.box.top]
499	mov eax, [eax + WDATA.box.left]	499	mov eax, [eax + WDATA.box.left]
500	add eax, [temp.cx]	500	add eax, [temp.cx]
501	and eax, 0xfff8	501	and eax, 0xfff8
502	shl ebx, 9	502	shl ebx, 9
503	lea ebx, [ebx + ebx*4] ; multiply by 5	503	lea ebx, [ebx + ebx*4] ; multiply by 5
504	lea ebx, [ebx + eax4] ; + xBytesPerPixel (Vesa2.0 32)	504	lea ebx, [ebx + eax4] ; + xBytesPerPixel (Vesa2.0 32)
505	mov esi, ebx	505	mov esi, ebx
506	add esi, [LFBAddress] ; + LFB address	506	add esi, [LFBAddress] ; + LFB address
507	shr ebx, 5 ; change BytesPerPixel to 1/8	507	shr ebx, 5 ; change BytesPerPixel to 1/8
508	mov edi, ebx	508	mov edi, ebx
509	add edi, VGABasePtr ; address of pixel in VGA area	509	add edi, VGABasePtr ; address of pixel in VGA area
510	mov ebx, ecx	510	mov ebx, ecx
511	shr ebx, 5	511	shr ebx, 5
512	inc ebx	512	inc ebx
513	;--------------------------------------	513	;--------------------------------------
514	align 4	514	align 4
515	.main_loop:	515	.main_loop:
516	call VGA_draw_long_line_1	516	call VGA_draw_long_line_1
517	dec edx	517	dec edx
518	jnz .main_loop	518	jnz .main_loop
519	call VGA_draw_long_line_1	519	call VGA_draw_long_line_1
520	ret	520	ret
521	;------------------------------------------------------------------------------	521	;------------------------------------------------------------------------------
522	align 4	522	align 4
523	VGA_draw_long_line_1:	523	VGA_draw_long_line_1:
524	push ebx edx esi edi	524	push ebx edx esi edi
525	shl edx, 9	525	shl edx, 9
526	lea edx, [edx + edx*4]	526	lea edx, [edx + edx*4]
527	add esi, edx	527	add esi, edx
528	shr edx, 5	528	shr edx, 5
529	add edi, edx	529	add edi, edx
530	call VGA_draw_long_line	530	call VGA_draw_long_line
531	pop edi esi edx ebx	531	pop edi esi edx ebx
532	ret	532	ret
533	;------------------------------------------------------------------------------	533	;------------------------------------------------------------------------------

Subversion Repositories Kolibri OS

(root)/kernel/trunk/video/vga.inc – Rev 9941 → 9977