source: mainline/fb/fb.c@ a805c24

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since a805c24 was 58fce89, checked in by Ondrej Palkovsky <ondrap@…>, 19 years ago

Don't move cursor on draw_text_data
  • Property mode set to 100644
File size: 17.4 KB
Line 
1/*
2 * Copyright (C) 2006 Jakub Vana
3 * Copyright (C) 2006 Ondrej Palkovsky
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * - Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * - Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * - The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#include <stdlib.h>
31#include <unistd.h>
32#include <string.h>
33#include <ddi.h>
34#include <sysinfo.h>
35#include <align.h>
36#include <as.h>
37#include <ipc/fb.h>
38#include <ipc/ipc.h>
39#include <ipc/ns.h>
40#include <ipc/services.h>
41#include <kernel/errno.h>
42#include <async.h>
43
44#include "font-8x16.h"
45#include "helenos.xbm"
46#include "fb.h"
47#include "main.h"
48#include "../console/screenbuffer.h"
49
50#define DEFAULT_BGCOLOR 0x000080
51#define DEFAULT_FGCOLOR 0xffff00
52
53/***************************************************************/
54/* Pixel specific fuctions */
55
56typedef void (*putpixel_fn_t)(unsigned int x, unsigned int y, int color);
57typedef int (*getpixel_fn_t)(unsigned int x, unsigned int y);
58
59struct {
60 __u8 *fbaddress ;
61
62 unsigned int xres ;
63 unsigned int yres ;
64 unsigned int scanline ;
65 unsigned int pixelbytes ;
66
67 putpixel_fn_t putpixel;
68 getpixel_fn_t getpixel;
69} screen;
70
71typedef struct {
72 int initialized;
73 unsigned int x, y;
74 unsigned int width, height;
75
76 /* Text support in window */
77 unsigned int rows, cols;
78 /* Style for text printing */
79 style_t style;
80 /* Auto-cursor position */
81 int cursor_active, cur_col, cur_row;
82 int cursor_shown;
83} viewport_t;
84
85#define MAX_VIEWPORTS 128
86static viewport_t viewports[128];
87
88/* Allow only 1 connection */
89static int client_connected = 0;
90
91#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
92#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
93#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
94
95#define COL_WIDTH 8
96#define ROW_BYTES (screen.scanline * FONT_SCANLINES)
97
98#define POINTPOS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
99
100/** Put pixel - 24-bit depth, 1 free byte */
101static void putpixel_4byte(unsigned int x, unsigned int y, int color)
102{
103 *((__u32 *)(screen.fbaddress + POINTPOS(x, y))) = color;
104}
105
106/** Return pixel color - 24-bit depth, 1 free byte */
107static int getpixel_4byte(unsigned int x, unsigned int y)
108{
109 return *((__u32 *)(screen.fbaddress + POINTPOS(x, y))) & 0xffffff;
110}
111
112/** Put pixel - 24-bit depth */
113static void putpixel_3byte(unsigned int x, unsigned int y, int color)
114{
115 unsigned int startbyte = POINTPOS(x, y);
116
117#if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
118 screen.fbaddress[startbyte] = RED(color, 8);
119 screen.fbaddress[startbyte + 1] = GREEN(color, 8);
120 screen.fbaddress[startbyte + 2] = BLUE(color, 8);
121#else
122 screen.fbaddress[startbyte + 2] = RED(color, 8);
123 screen.fbaddress[startbyte + 1] = GREEN(color, 8);
124 screen.fbaddress[startbyte + 0] = BLUE(color, 8);
125#endif
126
127}
128
129/** Return pixel color - 24-bit depth */
130static int getpixel_3byte(unsigned int x, unsigned int y)
131{
132 unsigned int startbyte = POINTPOS(x, y);
133
134
135
136#if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
137 return screen.fbaddress[startbyte] << 16 | screen.fbaddress[startbyte + 1] << 8 | screen.fbaddress[startbyte + 2];
138#else
139 return screen.fbaddress[startbyte + 2] << 16 | screen.fbaddress[startbyte + 1] << 8 | screen.fbaddress[startbyte + 0];
140#endif
141
142
143}
144
145/** Put pixel - 16-bit depth (5:6:5) */
146static void putpixel_2byte(unsigned int x, unsigned int y, int color)
147{
148 /* 5-bit, 6-bits, 5-bits */
149 *((__u16 *)(screen.fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 | GREEN(color, 6) << 5 | BLUE(color, 5);
150}
151
152/** Return pixel color - 16-bit depth (5:6:5) */
153static int getpixel_2byte(unsigned int x, unsigned int y)
154{
155 int color = *((__u16 *)(screen.fbaddress + POINTPOS(x, y)));
156 return (((color >> 11) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x3f) << (8 + 2)) | ((color & 0x1f) << 3);
157}
158
159/** Put pixel - 8-bit depth (3:2:3) */
160static void putpixel_1byte(unsigned int x, unsigned int y, int color)
161{
162 screen.fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 | GREEN(color, 2) << 3 | BLUE(color, 3);
163}
164
165/** Return pixel color - 8-bit depth (3:2:3) */
166static int getpixel_1byte(unsigned int x, unsigned int y)
167{
168 int color = screen.fbaddress[POINTPOS(x, y)];
169 return (((color >> 5) & 0x7) << (16 + 5)) | (((color >> 3) & 0x3) << (8 + 6)) | ((color & 0x7) << 5);
170}
171
172/** Put pixel into viewport
173 *
174 * @param vp Viewport identification
175 * @param x X coord relative to viewport
176 * @param y Y coord relative to viewport
177 * @param color RGB color
178 */
179static void putpixel(int vp, unsigned int x, unsigned int y, int color)
180{
181 screen.putpixel(viewports[vp].x + x, viewports[vp].y + y, color);
182}
183/** Get pixel from viewport */
184static int getpixel(int vp, unsigned int x, unsigned int y)
185{
186 return screen.getpixel(viewports[vp].x + x, viewports[vp].y + y);
187}
188
189/** Fill line with color BGCOLOR */
190static void clear_line(int vp, unsigned int y)
191{
192 unsigned int x;
193 for (x = 0; x < viewports[vp].width; x++)
194 putpixel(vp, x, y, viewports[vp].style.bg_color);
195}
196
197/** Fill viewport with background color */
198static void clear_port(int vp)
199{
200 unsigned int y;
201
202 clear_line(vp, 0);
203 for (y = viewports[vp].y+1; y < viewports[vp].y+viewports[vp].height; y++) {
204 memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
205 &screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
206 screen.pixelbytes * viewports[vp].width);
207 }
208}
209
210/** Scroll port up/down
211 *
212 * @param vp Viewport to scroll
213 * @param rows Positive number - scroll up, negative - scroll down
214 */
215static void scroll_port(int vp, int rows)
216{
217 int y;
218 int startline;
219 int endline;
220
221 if (rows > 0) {
222 for (y=viewports[vp].y; y < viewports[vp].y+viewports[vp].height - rows*FONT_SCANLINES; y++)
223 memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
224 &screen.fbaddress[POINTPOS(viewports[vp].x,y + rows*FONT_SCANLINES)],
225 screen.pixelbytes * viewports[vp].width);
226 /* Clear last row */
227 startline = viewports[vp].y+FONT_SCANLINES*(viewports[vp].rows-1);
228 endline = viewports[vp].y + viewports[vp].height;
229 clear_line(vp, startline);
230 for (y=startline+1;y < endline; y++)
231 memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
232 &screen.fbaddress[POINTPOS(viewports[vp].x,startline)],
233 screen.pixelbytes * viewports[vp].width);
234
235 } else if (rows < 0) {
236 rows = -rows;
237 for (y=viewports[vp].y + viewports[vp].height-1; y >= viewports[vp].y + rows*FONT_SCANLINES; y--)
238 memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
239 &screen.fbaddress[POINTPOS(viewports[vp].x,y - rows*FONT_SCANLINES)],
240 screen.pixelbytes * viewports[vp].width);
241 /* Clear first row */
242 clear_line(0, viewports[vp].style.bg_color);
243 for (y=1;y < rows*FONT_SCANLINES; y++)
244 memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y+y)],
245 &screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
246 screen.pixelbytes * viewports[vp].width);
247 }
248}
249
250static void invert_pixel(int vp,unsigned int x, unsigned int y)
251{
252 putpixel(vp, x, y, ~getpixel(vp, x, y));
253}
254
255
256/***************************************************************/
257/* Character-console functions */
258
259/** Draw character at given position */
260static void draw_glyph(int vp,__u8 glyph, unsigned int sx, unsigned int sy, style_t style)
261{
262 int i;
263 unsigned int y;
264 unsigned int glline;
265
266 for (y = 0; y < FONT_SCANLINES; y++) {
267 glline = fb_font[glyph * FONT_SCANLINES + y];
268 for (i = 0; i < 8; i++) {
269 if (glline & (1 << (7 - i)))
270 putpixel(vp, sx + i, sy + y, style.fg_color);
271 else
272 putpixel(vp, sx + i, sy + y, style.bg_color);
273 }
274 }
275}
276
277/** Invert character at given position */
278static void invert_char(int vp,unsigned int row, unsigned int col)
279{
280 unsigned int x;
281 unsigned int y;
282
283 for (x = 0; x < COL_WIDTH; x++)
284 for (y = 0; y < FONT_SCANLINES; y++)
285 invert_pixel(vp, col * COL_WIDTH + x, row * FONT_SCANLINES + y);
286}
287
288static void draw_logo(int vp,unsigned int startx, unsigned int starty)
289{
290 unsigned int x;
291 unsigned int y;
292 unsigned int byte;
293 unsigned int rowbytes;
294
295 rowbytes = (helenos_width - 1) / 8 + 1;
296
297 for (y = 0; y < helenos_height; y++)
298 for (x = 0; x < helenos_width; x++) {
299 byte = helenos_bits[rowbytes * y + x / 8];
300 byte >>= x % 8;
301 if (byte & 1)
302 putpixel(vp ,startx + x, starty + y, viewports[vp].style.fg_color);
303 }
304}
305
306/***************************************************************/
307/* Stdout specific functions */
308
309
310/** Create new viewport
311 *
312 * @return New viewport number
313 */
314static int viewport_create(unsigned int x, unsigned int y,unsigned int width,
315 unsigned int height)
316{
317 int i;
318
319for (i=0; i < MAX_VIEWPORTS; i++) {
320 if (!viewports[i].initialized)
321 break;
322 }
323 if (i == MAX_VIEWPORTS)
324 return ELIMIT;
325
326 if (width ==0 || height == 0 ||
327 x+width > screen.xres || y+height > screen.yres)
328 return EINVAL;
329 if (width < FONT_SCANLINES || height < COL_WIDTH)
330 return EINVAL;
331
332 viewports[i].x = x;
333 viewports[i].y = y;
334 viewports[i].width = width;
335 viewports[i].height = height;
336
337 viewports[i].rows = height / FONT_SCANLINES;
338 viewports[i].cols = width / COL_WIDTH;
339
340 viewports[i].style.bg_color = DEFAULT_BGCOLOR;
341 viewports[i].style.fg_color = DEFAULT_FGCOLOR;
342
343 viewports[i].cur_col = 0;
344 viewports[i].cur_row = 0;
345 viewports[i].cursor_active = 0;
346
347 viewports[i].initialized = 1;
348
349 return i;
350}
351
352
353/** Initialize framebuffer as a chardev output device
354 *
355 * @param addr Address of theframebuffer
356 * @param x Screen width in pixels
357 * @param y Screen height in pixels
358 * @param bpp Bits per pixel (8, 16, 24, 32)
359 * @param scan Bytes per one scanline
360 *
361 */
362static void screen_init(void *addr, unsigned int xres, unsigned int yres, unsigned int bpp, unsigned int scan)
363{
364 switch (bpp) {
365 case 8:
366 screen.putpixel = putpixel_1byte;
367 screen.getpixel = getpixel_1byte;
368 screen.pixelbytes = 1;
369 break;
370 case 16:
371 screen.putpixel = putpixel_2byte;
372 screen.getpixel = getpixel_2byte;
373 screen.pixelbytes = 2;
374 break;
375 case 24:
376 screen.putpixel = putpixel_3byte;
377 screen.getpixel = getpixel_3byte;
378 screen.pixelbytes = 3;
379 break;
380 case 32:
381 screen.putpixel = putpixel_4byte;
382 screen.getpixel = getpixel_4byte;
383 screen.pixelbytes = 4;
384 break;
385 }
386
387
388 screen.fbaddress = (unsigned char *) addr;
389 screen.xres = xres;
390 screen.yres = yres;
391 screen.scanline = scan;
392
393 /* Create first viewport */
394 viewport_create(0,0,xres,yres);
395}
396
397static void cursor_hide(int vp)
398{
399 viewport_t *vport = &viewports[vp];
400
401 if (vport->cursor_active && vport->cursor_shown) {
402 invert_char(vp, vport->cur_row, vport->cur_col);
403 vport->cursor_shown = 0;
404 }
405}
406
407static void cursor_print(int vp)
408{
409 viewport_t *vport = &viewports[vp];
410
411 /* Do not check for cursor_shown */
412 if (vport->cursor_active) {
413 invert_char(vp, vport->cur_row, vport->cur_col);
414 vport->cursor_shown = 1;
415 }
416}
417
418static void cursor_blink(int vp)
419{
420 viewport_t *vport = &viewports[vp];
421
422 if (vport->cursor_shown)
423 cursor_hide(vp);
424 else
425 cursor_print(vp);
426}
427
428/** Draw character at given position relative to viewport
429 *
430 * @param vp Viewport identification
431 * @param c Character to print
432 * @param row Screen position relative to viewport
433 * @param col Screen position relative to viewport
434 */
435static void draw_char(int vp, char c, unsigned int row, unsigned int col, style_t style)
436{
437 viewport_t *vport = &viewports[vp];
438
439 /* Optimize - do not hide cursor if we are going to overwrite it */
440 if (vport->cursor_active && vport->cursor_shown &&
441 (vport->cur_col != col || vport->cur_row != row))
442 invert_char(vp, vport->cur_row, vport->cur_col);
443
444 draw_glyph(vp, c, col * COL_WIDTH, row * FONT_SCANLINES, style);
445
446 vport->cur_col = col;
447 vport->cur_row = row;
448
449 vport->cur_col++;
450 if (vport->cur_col>= vport->cols) {
451 vport->cur_col = 0;
452 vport->cur_row++;
453 if (vport->cur_row >= vport->rows)
454 vport->cur_row--;
455 }
456 cursor_print(vp);
457}
458
459static void draw_text_data(int vp, keyfield_t *data)
460{
461 viewport_t *vport = &viewports[vp];
462 int i;
463 char c;
464 int col,row;
465
466 clear_port(vp);
467 for (i=0; i < vport->cols * vport->rows; i++) {
468 if (data[i].character == ' ' && style_same(data[i].style,vport->style))
469 continue;
470 col = i % vport->cols;
471 row = i / vport->cols;
472 draw_glyph(vp, data[i].character, col * COL_WIDTH, row * FONT_SCANLINES, data[i].style);
473 }
474 cursor_print(vp);
475}
476
477
478/** Function for handling connections to FB
479 *
480 */
481static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
482{
483 ipc_callid_t callid;
484 ipc_call_t call;
485 int retval;
486 int i;
487 unsigned int row,col;
488 char c;
489 keyfield_t *interbuffer = NULL;
490 size_t intersize = 0;
491
492 int vp = 0;
493 viewport_t *vport = &viewports[0];
494
495 if (client_connected) {
496 ipc_answer_fast(iid, ELIMIT, 0,0);
497 return;
498 }
499 client_connected = 1;
500 ipc_answer_fast(iid, 0, 0, 0); /* Accept connection */
501
502 while (1) {
503 callid = async_get_call_timeout(&call,250000);
504 if (!callid) {
505 cursor_blink(vp);
506 continue;
507 }
508 switch (IPC_GET_METHOD(call)) {
509 case IPC_M_PHONE_HUNGUP:
510 client_connected = 0;
511 /* cleanup other viewports */
512 for (i=1; i < MAX_VIEWPORTS; i++)
513 vport->initialized = 0;
514 ipc_answer_fast(callid,0,0,0);
515 return; /* Exit thread */
516 case IPC_M_AS_AREA_SEND:
517 /* We accept one area for data interchange */
518 intersize = IPC_GET_ARG2(call);
519 receive_comm_area(callid,&call,(void **)&interbuffer,
520 sizeof(*interbuffer)*viewports[0].cols*viewports[0].rows);
521 continue;
522
523 case FB_DRAW_TEXT_DATA:
524 if (!interbuffer) {
525 retval = EINVAL;
526 break;
527 }
528 if (intersize < vport->cols*vport->rows*sizeof(*interbuffer)) {
529 retval = EINVAL;
530 break;
531 }
532 draw_text_data(vp, interbuffer);
533 retval = 0;
534 break;
535 case FB_PUTCHAR:
536 c = IPC_GET_ARG1(call);
537 row = IPC_GET_ARG2(call);
538 col = IPC_GET_ARG3(call);
539 if (row >= vport->rows || col >= vport->cols) {
540 retval = EINVAL;
541 break;
542 }
543 ipc_answer_fast(callid,0,0,0);
544
545 draw_char(vp, c, row, col, vport->style);
546 continue; /* msg already answered */
547 case FB_CLEAR:
548 clear_port(vp);
549 cursor_print(vp);
550 retval = 0;
551 break;
552 case FB_CURSOR_GOTO:
553 row = IPC_GET_ARG1(call);
554 col = IPC_GET_ARG2(call);
555 if (row >= vport->rows || col >= vport->cols) {
556 retval = EINVAL;
557 break;
558 }
559 retval = 0;
560 cursor_hide(vp);
561 vport->cur_col = col;
562 vport->cur_row = row;
563 cursor_print(vp);
564 break;
565 case FB_CURSOR_VISIBILITY:
566 cursor_hide(vp);
567 vport->cursor_active = IPC_GET_ARG1(call);
568 cursor_print(vp);
569 retval = 0;
570 break;
571 case FB_GET_CSIZE:
572 ipc_answer_fast(callid, 0, vport->rows, vport->cols);
573 continue;
574 case FB_SCROLL:
575 i = IPC_GET_ARG1(call);
576 if (i > vport->rows || i < (- (int)vport->rows)) {
577 retval = EINVAL;
578 break;
579 }
580 cursor_hide(vp);
581 scroll_port(vp, i);
582 cursor_print(vp);
583 retval = 0;
584 break;
585 case FB_VIEWPORT_SWITCH:
586 i = IPC_GET_ARG1(call);
587 if (i < 0 || i >= MAX_VIEWPORTS) {
588 retval = EINVAL;
589 break;
590 }
591 if (! viewports[i].initialized ) {
592 retval = EADDRNOTAVAIL;
593 break;
594 }
595 cursor_hide(vp);
596 vp = i;
597 vport = &viewports[vp];
598 cursor_print(vp);
599 retval = 0;
600 break;
601 case FB_VIEWPORT_CREATE:
602 retval = viewport_create(IPC_GET_ARG1(call) >> 16,
603 IPC_GET_ARG1(call) & 0xffff,
604 IPC_GET_ARG2(call) >> 16,
605 IPC_GET_ARG2(call) & 0xffff);
606 break;
607 case FB_VIEWPORT_DELETE:
608 i = IPC_GET_ARG1(call);
609 if (i < 0 || i >= MAX_VIEWPORTS) {
610 retval = EINVAL;
611 break;
612 }
613 if (! viewports[i].initialized ) {
614 retval = EADDRNOTAVAIL;
615 break;
616 }
617 viewports[i].initialized = 0;
618 retval = 0;
619 break;
620 case FB_SET_STYLE:
621 vport->style.fg_color = IPC_GET_ARG1(call);
622 vport->style.bg_color = IPC_GET_ARG2(call);
623 retval = 0;
624 break;
625 case FB_GET_RESOLUTION:
626 ipc_answer_fast(callid, 0, screen.xres,screen.yres);
627 continue;
628 default:
629 retval = ENOENT;
630 }
631 ipc_answer_fast(callid,retval,0,0);
632 }
633}
634
635/** Initialization of framebuffer */
636int fb_init(void)
637{
638 void *fb_ph_addr;
639 unsigned int fb_width;
640 unsigned int fb_height;
641 unsigned int fb_bpp;
642 unsigned int fb_scanline;
643 void *fb_addr;
644 size_t asz;
645
646 async_set_client_connection(fb_client_connection);
647
648 fb_ph_addr=(void *)sysinfo_value("fb.address.physical");
649 fb_width=sysinfo_value("fb.width");
650 fb_height=sysinfo_value("fb.height");
651 fb_bpp=sysinfo_value("fb.bpp");
652 fb_scanline=sysinfo_value("fb.scanline");
653
654 asz = fb_scanline*fb_height;
655 fb_addr = as_get_mappable_page(asz);
656
657 map_physmem(fb_ph_addr, fb_addr, ALIGN_UP(asz,PAGE_SIZE) >>PAGE_WIDTH,
658 AS_AREA_READ | AS_AREA_WRITE | AS_AREA_CACHEABLE);
659
660 screen_init(fb_addr, fb_width, fb_height, fb_bpp, fb_scanline);
661
662 return 0;
663}
664
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