source: mainline/uspace/srv/hid/fb/fb.c@ ea5dbaf

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since ea5dbaf was 5b8b66c, checked in by Jakub Jermar <jakub@…>, 15 years ago

fb should be robust wrt. bogus mouse coordinates passed from console.
  • Property mode set to 100644
File size: 42.4 KB
Line 
1/*
2 * Copyright (c) 2008 Martin Decky
3 * Copyright (c) 2006 Jakub Vana
4 * Copyright (c) 2006 Ondrej Palkovsky
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * - Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * - Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * - The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31/**
32 * @defgroup fb Graphical framebuffer
33 * @brief HelenOS graphical framebuffer.
34 * @ingroup fbs
35 * @{
36 */
37
38/** @file
39 */
40
41#include <stdlib.h>
42#include <unistd.h>
43#include <str.h>
44#include <ddi.h>
45#include <sysinfo.h>
46#include <align.h>
47#include <as.h>
48#include <ipc/fb.h>
49#include <ipc/ipc.h>
50#include <ipc/ns.h>
51#include <ipc/services.h>
52#include <kernel/errno.h>
53#include <kernel/genarch/fb/visuals.h>
54#include <io/color.h>
55#include <io/style.h>
56#include <async.h>
57#include <fibril.h>
58#include <bool.h>
59#include <stdio.h>
60#include <byteorder.h>
61#include <io/screenbuffer.h>
62
63#include "font-8x16.h"
64#include "fb.h"
65#include "main.h"
66#include "ppm.h"
67
68#include "pointer.xbm"
69#include "pointer_mask.xbm"
70
71#define DEFAULT_BGCOLOR 0xf0f0f0
72#define DEFAULT_FGCOLOR 0x000000
73
74#define GLYPH_UNAVAIL '?'
75
76#define MAX_ANIM_LEN 8
77#define MAX_ANIMATIONS 4
78#define MAX_PIXMAPS 256 /**< Maximum number of saved pixmaps */
79#define MAX_VIEWPORTS 128 /**< Viewport is a rectangular area on the screen */
80
81/** Function to render a pixel from a RGB value. */
82typedef void (*rgb_conv_t)(void *, uint32_t);
83
84/** Function to render a bit mask. */
85typedef void (*mask_conv_t)(void *, bool);
86
87/** Function to draw a glyph. */
88typedef void (*dg_t)(unsigned int x, unsigned int y, bool cursor,
89 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
90
91struct {
92 uint8_t *fb_addr;
93
94 unsigned int xres;
95 unsigned int yres;
96
97 unsigned int scanline;
98 unsigned int glyphscanline;
99
100 unsigned int pixelbytes;
101 unsigned int glyphbytes;
102
103 /** Pre-rendered mask for rendering glyphs. Specific for the visual. */
104 uint8_t *glyphs;
105
106 rgb_conv_t rgb_conv;
107 mask_conv_t mask_conv;
108} screen;
109
110/** Backbuffer character cell. */
111typedef struct {
112 uint32_t glyph;
113 uint32_t fg_color;
114 uint32_t bg_color;
115} bb_cell_t;
116
117typedef struct {
118 bool initialized;
119 unsigned int x;
120 unsigned int y;
121 unsigned int width;
122 unsigned int height;
123
124 /* Text support in window */
125 unsigned int cols;
126 unsigned int rows;
127
128 /*
129 * Style and glyphs for text printing
130 */
131
132 /** Current attributes. */
133 attr_rgb_t attr;
134
135 uint8_t *bgpixel;
136
137 /**
138 * Glyph drawing function for this viewport. Different viewports
139 * might use different drawing functions depending on whether their
140 * scanlines are aligned on a word boundary.
141 */
142 dg_t dglyph;
143
144 /* Auto-cursor position */
145 bool cursor_active;
146 unsigned int cur_col;
147 unsigned int cur_row;
148 bool cursor_shown;
149
150 /* Back buffer */
151 bb_cell_t *backbuf;
152 unsigned int bbsize;
153} viewport_t;
154
155typedef struct {
156 bool initialized;
157 bool enabled;
158 unsigned int vp;
159
160 unsigned int pos;
161 unsigned int animlen;
162 unsigned int pixmaps[MAX_ANIM_LEN];
163} animation_t;
164
165static animation_t animations[MAX_ANIMATIONS];
166static bool anims_enabled;
167
168typedef struct {
169 unsigned int width;
170 unsigned int height;
171 uint8_t *data;
172} pixmap_t;
173
174static pixmap_t pixmaps[MAX_PIXMAPS];
175static viewport_t viewports[128];
176
177static bool client_connected = false; /**< Allow only 1 connection */
178
179static uint32_t color_table[16] = {
180 [COLOR_BLACK] = 0x000000,
181 [COLOR_BLUE] = 0x0000f0,
182 [COLOR_GREEN] = 0x00f000,
183 [COLOR_CYAN] = 0x00f0f0,
184 [COLOR_RED] = 0xf00000,
185 [COLOR_MAGENTA] = 0xf000f0,
186 [COLOR_YELLOW] = 0xf0f000,
187 [COLOR_WHITE] = 0xf0f0f0,
188
189 [8 + COLOR_BLACK] = 0x000000,
190 [8 + COLOR_BLUE] = 0x0000ff,
191 [8 + COLOR_GREEN] = 0x00ff00,
192 [8 + COLOR_CYAN] = 0x00ffff,
193 [8 + COLOR_RED] = 0xff0000,
194 [8 + COLOR_MAGENTA] = 0xff00ff,
195 [8 + COLOR_YELLOW] = 0xffff00,
196 [8 + COLOR_WHITE] = 0xffffff,
197};
198
199static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a);
200static int rgb_from_style(attr_rgb_t *rgb, int style);
201static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
202 ipcarg_t bg_color, ipcarg_t flags);
203
204static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
205 ipcarg_t bg_color, ipcarg_t attr);
206
207static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
208 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
209static void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
210 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
211
212static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
213 unsigned int row);
214
215
216#define RED(x, bits) (((x) >> (8 + 8 + 8 - (bits))) & ((1 << (bits)) - 1))
217#define GREEN(x, bits) (((x) >> (8 + 8 - (bits))) & ((1 << (bits)) - 1))
218#define BLUE(x, bits) (((x) >> (8 - (bits))) & ((1 << (bits)) - 1))
219
220#define COL2X(col) ((col) * FONT_WIDTH)
221#define ROW2Y(row) ((row) * FONT_SCANLINES)
222
223#define X2COL(x) ((x) / FONT_WIDTH)
224#define Y2ROW(y) ((y) / FONT_SCANLINES)
225
226#define FB_POS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
227#define BB_POS(vport, col, row) ((row) * vport->cols + (col))
228#define GLYPH_POS(glyph, y, cursor) (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
229
230/*
231 * RGB conversion and mask functions.
232 *
233 * These functions write an RGB value to some memory in some predefined format.
234 * The naming convention corresponds to the format created by these functions.
235 * The functions use the so called network order (i.e. big endian) with respect
236 * to their names.
237 */
238
239static void rgb_0888(void *dst, uint32_t rgb)
240{
241 *((uint32_t *) dst) = host2uint32_t_be((0 << 24) |
242 (RED(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | (BLUE(rgb, 8)));
243}
244
245static void bgr_0888(void *dst, uint32_t rgb)
246{
247 *((uint32_t *) dst) = host2uint32_t_be((0 << 24) |
248 (BLUE(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | (RED(rgb, 8)));
249}
250
251static void mask_0888(void *dst, bool mask)
252{
253 bgr_0888(dst, mask ? 0xffffff : 0);
254}
255
256static void rgb_8880(void *dst, uint32_t rgb)
257{
258 *((uint32_t *) dst) = host2uint32_t_be((RED(rgb, 8) << 24) |
259 (GREEN(rgb, 8) << 16) | (BLUE(rgb, 8) << 8) | 0);
260}
261
262static void bgr_8880(void *dst, uint32_t rgb)
263{
264 *((uint32_t *) dst) = host2uint32_t_be((BLUE(rgb, 8) << 24) |
265 (GREEN(rgb, 8) << 16) | (RED(rgb, 8) << 8) | 0);
266}
267
268static void mask_8880(void *dst, bool mask)
269{
270 bgr_8880(dst, mask ? 0xffffff : 0);
271}
272
273static void rgb_888(void *dst, uint32_t rgb)
274{
275 ((uint8_t *) dst)[0] = RED(rgb, 8);
276 ((uint8_t *) dst)[1] = GREEN(rgb, 8);
277 ((uint8_t *) dst)[2] = BLUE(rgb, 8);
278}
279
280static void bgr_888(void *dst, uint32_t rgb)
281{
282 ((uint8_t *) dst)[0] = BLUE(rgb, 8);
283 ((uint8_t *) dst)[1] = GREEN(rgb, 8);
284 ((uint8_t *) dst)[2] = RED(rgb, 8);
285}
286
287static void mask_888(void *dst, bool mask)
288{
289 bgr_888(dst, mask ? 0xffffff : 0);
290}
291
292static void rgb_555_be(void *dst, uint32_t rgb)
293{
294 *((uint16_t *) dst) = host2uint16_t_be(RED(rgb, 5) << 10 |
295 GREEN(rgb, 5) << 5 | BLUE(rgb, 5));
296}
297
298static void rgb_555_le(void *dst, uint32_t rgb)
299{
300 *((uint16_t *) dst) = host2uint16_t_le(RED(rgb, 5) << 10 |
301 GREEN(rgb, 5) << 5 | BLUE(rgb, 5));
302}
303
304static void rgb_565_be(void *dst, uint32_t rgb)
305{
306 *((uint16_t *) dst) = host2uint16_t_be(RED(rgb, 5) << 11 |
307 GREEN(rgb, 6) << 5 | BLUE(rgb, 5));
308}
309
310static void rgb_565_le(void *dst, uint32_t rgb)
311{
312 *((uint16_t *) dst) = host2uint16_t_le(RED(rgb, 5) << 11 |
313 GREEN(rgb, 6) << 5 | BLUE(rgb, 5));
314}
315
316static void mask_555(void *dst, bool mask)
317{
318 rgb_555_be(dst, mask ? 0xffffff : 0);
319}
320
321static void mask_565(void *dst, bool mask)
322{
323 rgb_565_be(dst, mask ? 0xffffff : 0);
324}
325
326static void bgr_323(void *dst, uint32_t rgb)
327{
328 *((uint8_t *) dst)
329 = ~((RED(rgb, 3) << 5) | (GREEN(rgb, 2) << 3) | BLUE(rgb, 3));
330}
331
332static void mask_323(void *dst, bool mask)
333{
334 bgr_323(dst, mask ? 0x0 : ~0x0);
335}
336
337/** Draw a filled rectangle.
338 *
339 * @note Need real implementation that does not access VRAM twice.
340 *
341 */
342static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
343 unsigned int y1, uint32_t color)
344{
345 unsigned int x;
346 unsigned int y;
347 unsigned int copy_bytes;
348
349 uint8_t *sp;
350 uint8_t *dp;
351 uint8_t cbuf[4];
352
353 if ((y0 >= y1) || (x0 >= x1))
354 return;
355
356 screen.rgb_conv(cbuf, color);
357
358 sp = &screen.fb_addr[FB_POS(x0, y0)];
359 dp = sp;
360
361 /* Draw the first line. */
362 for (x = x0; x < x1; x++) {
363 memcpy(dp, cbuf, screen.pixelbytes);
364 dp += screen.pixelbytes;
365 }
366
367 dp = sp + screen.scanline;
368 copy_bytes = (x1 - x0) * screen.pixelbytes;
369
370 /* Draw the remaining lines by copying. */
371 for (y = y0 + 1; y < y1; y++) {
372 memcpy(dp, sp, copy_bytes);
373 dp += screen.scanline;
374 }
375}
376
377/** Redraw viewport.
378 *
379 * @param vport Viewport to redraw
380 *
381 */
382static void vport_redraw(viewport_t *vport)
383{
384 unsigned int col;
385 unsigned int row;
386
387 for (row = 0; row < vport->rows; row++) {
388 for (col = 0; col < vport->cols; col++) {
389 draw_vp_glyph(vport, false, col, row);
390 }
391 }
392
393 if (COL2X(vport->cols) < vport->width) {
394 draw_filled_rect(
395 vport->x + COL2X(vport->cols), vport->y,
396 vport->x + vport->width, vport->y + vport->height,
397 vport->attr.bg_color);
398 }
399
400 if (ROW2Y(vport->rows) < vport->height) {
401 draw_filled_rect(
402 vport->x, vport->y + ROW2Y(vport->rows),
403 vport->x + vport->width, vport->y + vport->height,
404 vport->attr.bg_color);
405 }
406}
407
408static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
409 uint32_t bg_color)
410{
411 size_t i;
412
413 for (i = 0; i < len; i++) {
414 backbuf[i].glyph = 0;
415 backbuf[i].fg_color = fg_color;
416 backbuf[i].bg_color = bg_color;
417 }
418}
419
420/** Clear viewport.
421 *
422 * @param vport Viewport to clear
423 *
424 */
425static void vport_clear(viewport_t *vport)
426{
427 backbuf_clear(vport->backbuf, vport->cols * vport->rows,
428 vport->attr.fg_color, vport->attr.bg_color);
429 vport_redraw(vport);
430}
431
432/** Scroll viewport by the specified number of lines.
433 *
434 * @param vport Viewport to scroll
435 * @param lines Number of lines to scroll
436 *
437 */
438static void vport_scroll(viewport_t *vport, int lines)
439{
440 unsigned int col;
441 unsigned int row;
442 unsigned int x;
443 unsigned int y;
444 uint32_t glyph;
445 uint32_t fg_color;
446 uint32_t bg_color;
447 bb_cell_t *bbp;
448 bb_cell_t *xbp;
449
450 /*
451 * Redraw.
452 */
453
454 y = vport->y;
455 for (row = 0; row < vport->rows; row++) {
456 x = vport->x;
457 for (col = 0; col < vport->cols; col++) {
458 if (((int) row + lines >= 0) &&
459 ((int) row + lines < (int) vport->rows)) {
460 xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
461 bbp = &vport->backbuf[BB_POS(vport, col, row)];
462
463 glyph = xbp->glyph;
464 fg_color = xbp->fg_color;
465 bg_color = xbp->bg_color;
466
467 if ((bbp->glyph == glyph)
468 && (bbp->fg_color == xbp->fg_color)
469 && (bbp->bg_color == xbp->bg_color)) {
470 x += FONT_WIDTH;
471 continue;
472 }
473 } else {
474 glyph = 0;
475 fg_color = vport->attr.fg_color;
476 bg_color = vport->attr.bg_color;
477 }
478
479 (*vport->dglyph)(x, y, false, screen.glyphs, glyph,
480 fg_color, bg_color);
481 x += FONT_WIDTH;
482 }
483 y += FONT_SCANLINES;
484 }
485
486 /*
487 * Scroll backbuffer.
488 */
489
490 if (lines > 0) {
491 memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
492 vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
493 backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
494 vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
495 } else {
496 memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
497 vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
498 backbuf_clear(vport->backbuf, - vport->cols * lines,
499 vport->attr.fg_color, vport->attr.bg_color);
500 }
501}
502
503/** Render glyphs
504 *
505 * Convert glyphs from device independent font
506 * description to current visual representation.
507 *
508 */
509static void render_glyphs(void)
510{
511 unsigned int glyph;
512
513 for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
514 unsigned int y;
515
516 for (y = 0; y < FONT_SCANLINES; y++) {
517 unsigned int x;
518
519 for (x = 0; x < FONT_WIDTH; x++) {
520 screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
521 (fb_font[glyph][y] & (1 << (7 - x))) ? true : false);
522
523 screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
524 (fb_font[glyph][y] & (1 << (7 - x))) ? false : true);
525 }
526 }
527 }
528}
529
530/** Create new viewport
531 *
532 * @param x Origin of the viewport (x).
533 * @param y Origin of the viewport (y).
534 * @param width Width of the viewport.
535 * @param height Height of the viewport.
536 *
537 * @return New viewport number.
538 *
539 */
540static int vport_create(unsigned int x, unsigned int y,
541 unsigned int width, unsigned int height)
542{
543 unsigned int i;
544
545 for (i = 0; i < MAX_VIEWPORTS; i++) {
546 if (!viewports[i].initialized)
547 break;
548 }
549
550 if (i == MAX_VIEWPORTS)
551 return ELIMIT;
552
553 unsigned int cols = width / FONT_WIDTH;
554 unsigned int rows = height / FONT_SCANLINES;
555 unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
556 unsigned int word_size = sizeof(unsigned long);
557
558 bb_cell_t *backbuf = (bb_cell_t *) malloc(bbsize);
559 if (!backbuf)
560 return ENOMEM;
561
562 uint8_t *bgpixel = (uint8_t *) malloc(screen.pixelbytes);
563 if (!bgpixel) {
564 free(backbuf);
565 return ENOMEM;
566 }
567
568 backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
569 memset(bgpixel, 0, screen.pixelbytes);
570
571 viewports[i].x = x;
572 viewports[i].y = y;
573 viewports[i].width = width;
574 viewports[i].height = height;
575
576 viewports[i].cols = cols;
577 viewports[i].rows = rows;
578
579 viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
580 viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
581
582 viewports[i].bgpixel = bgpixel;
583
584 /*
585 * Conditions necessary to select aligned version:
586 * - word size is divisible by pixelbytes
587 * - cell scanline size is divisible by word size
588 * - cell scanlines are word-aligned
589 *
590 */
591 if (((word_size % screen.pixelbytes) == 0)
592 && ((FONT_WIDTH * screen.pixelbytes) % word_size == 0)
593 && ((x * screen.pixelbytes) % word_size == 0)
594 && (screen.scanline % word_size == 0)) {
595 viewports[i].dglyph = draw_glyph_aligned;
596 } else {
597 viewports[i].dglyph = draw_glyph_fallback;
598 }
599
600 viewports[i].cur_col = 0;
601 viewports[i].cur_row = 0;
602 viewports[i].cursor_active = false;
603 viewports[i].cursor_shown = false;
604
605 viewports[i].bbsize = bbsize;
606 viewports[i].backbuf = backbuf;
607
608 viewports[i].initialized = true;
609
610 screen.rgb_conv(viewports[i].bgpixel, viewports[i].attr.bg_color);
611
612 return i;
613}
614
615
616/** Initialize framebuffer as a chardev output device
617 *
618 * @param addr Address of the framebuffer
619 * @param xres Screen width in pixels
620 * @param yres Screen height in pixels
621 * @param visual Bits per pixel (8, 16, 24, 32)
622 * @param scan Bytes per one scanline
623 *
624 */
625static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
626 unsigned int scan, unsigned int visual)
627{
628 switch (visual) {
629 case VISUAL_INDIRECT_8:
630 screen.rgb_conv = bgr_323;
631 screen.mask_conv = mask_323;
632 screen.pixelbytes = 1;
633 break;
634 case VISUAL_RGB_5_5_5_LE:
635 screen.rgb_conv = rgb_555_le;
636 screen.mask_conv = mask_555;
637 screen.pixelbytes = 2;
638 break;
639 case VISUAL_RGB_5_5_5_BE:
640 screen.rgb_conv = rgb_555_be;
641 screen.mask_conv = mask_555;
642 screen.pixelbytes = 2;
643 break;
644 case VISUAL_RGB_5_6_5_LE:
645 screen.rgb_conv = rgb_565_le;
646 screen.mask_conv = mask_565;
647 screen.pixelbytes = 2;
648 break;
649 case VISUAL_RGB_5_6_5_BE:
650 screen.rgb_conv = rgb_565_be;
651 screen.mask_conv = mask_565;
652 screen.pixelbytes = 2;
653 break;
654 case VISUAL_RGB_8_8_8:
655 screen.rgb_conv = rgb_888;
656 screen.mask_conv = mask_888;
657 screen.pixelbytes = 3;
658 break;
659 case VISUAL_BGR_8_8_8:
660 screen.rgb_conv = bgr_888;
661 screen.mask_conv = mask_888;
662 screen.pixelbytes = 3;
663 break;
664 case VISUAL_RGB_8_8_8_0:
665 screen.rgb_conv = rgb_8880;
666 screen.mask_conv = mask_8880;
667 screen.pixelbytes = 4;
668 break;
669 case VISUAL_RGB_0_8_8_8:
670 screen.rgb_conv = rgb_0888;
671 screen.mask_conv = mask_0888;
672 screen.pixelbytes = 4;
673 break;
674 case VISUAL_BGR_0_8_8_8:
675 screen.rgb_conv = bgr_0888;
676 screen.mask_conv = mask_0888;
677 screen.pixelbytes = 4;
678 break;
679 case VISUAL_BGR_8_8_8_0:
680 screen.rgb_conv = bgr_8880;
681 screen.mask_conv = mask_8880;
682 screen.pixelbytes = 4;
683 break;
684 default:
685 return false;
686 }
687
688 screen.fb_addr = (unsigned char *) addr;
689 screen.xres = xres;
690 screen.yres = yres;
691 screen.scanline = scan;
692
693 screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
694 screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
695
696 size_t glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
697 uint8_t *glyphs = (uint8_t *) malloc(glyphsize);
698 if (!glyphs)
699 return false;
700
701 memset(glyphs, 0, glyphsize);
702 screen.glyphs = glyphs;
703
704 render_glyphs();
705
706 /* Create first viewport */
707 vport_create(0, 0, xres, yres);
708
709 return true;
710}
711
712
713/** Draw a glyph, takes advantage of alignment.
714 *
715 * This version can only be used if the following conditions are met:
716 *
717 * - word size is divisible by pixelbytes
718 * - cell scanline size is divisible by word size
719 * - cell scanlines are word-aligned
720 *
721 * It makes use of the pre-rendered mask to process (possibly) several
722 * pixels at once (word size / pixelbytes pixels at a time are processed)
723 * making it very fast. Most notably this version is not applicable at 24 bits
724 * per pixel.
725 *
726 * @param x x coordinate of top-left corner on screen.
727 * @param y y coordinate of top-left corner on screen.
728 * @param cursor Draw glyph with cursor
729 * @param glyphs Pointer to font bitmap.
730 * @param glyph Code of the glyph to draw.
731 * @param fg_color Foreground color.
732 * @param bg_color Backgroudn color.
733 *
734 */
735static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
736 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
737{
738 unsigned int i;
739 unsigned int yd;
740 unsigned long fg_buf;
741 unsigned long bg_buf;
742 unsigned long mask;
743
744 /*
745 * Prepare a pair of words, one filled with foreground-color
746 * pattern and the other filled with background-color pattern.
747 */
748 for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
749 screen.rgb_conv(&((uint8_t *) &fg_buf)[i * screen.pixelbytes],
750 fg_color);
751 screen.rgb_conv(&((uint8_t *) &bg_buf)[i * screen.pixelbytes],
752 bg_color);
753 }
754
755 /* Pointer to the current position in the mask. */
756 unsigned long *maskp = (unsigned long *) &glyphs[GLYPH_POS(glyph, 0, cursor)];
757
758 /* Pointer to the current position on the screen. */
759 unsigned long *dp = (unsigned long *) &screen.fb_addr[FB_POS(x, y)];
760
761 /* Width of the character cell in words. */
762 unsigned int ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
763
764 /* Offset to add when moving to another screen scanline. */
765 unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
766
767 for (yd = 0; yd < FONT_SCANLINES; yd++) {
768 /*
769 * Now process the cell scanline, combining foreground
770 * and background color patters using the pre-rendered mask.
771 */
772 for (i = 0; i < ww; i++) {
773 mask = *maskp++;
774 *dp++ = (fg_buf & mask) | (bg_buf & ~mask);
775 }
776
777 /* Move to the beginning of the next scanline of the cell. */
778 dp = (unsigned long *) ((uint8_t *) dp + d_add);
779 }
780}
781
782/** Draw a glyph, fallback version.
783 *
784 * This version does not make use of the pre-rendered mask, it uses
785 * the font bitmap directly. It works always, but it is slower.
786 *
787 * @param x x coordinate of top-left corner on screen.
788 * @param y y coordinate of top-left corner on screen.
789 * @param cursor Draw glyph with cursor
790 * @param glyphs Pointer to font bitmap.
791 * @param glyph Code of the glyph to draw.
792 * @param fg_color Foreground color.
793 * @param bg_color Backgroudn color.
794 *
795 */
796void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
797 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
798{
799 unsigned int i;
800 unsigned int j;
801 unsigned int yd;
802 uint8_t fg_buf[4];
803 uint8_t bg_buf[4];
804 uint8_t *sp;
805 uint8_t b;
806
807 /* Pre-render 1x the foreground and background color pixels. */
808 if (cursor) {
809 screen.rgb_conv(fg_buf, bg_color);
810 screen.rgb_conv(bg_buf, fg_color);
811 } else {
812 screen.rgb_conv(fg_buf, fg_color);
813 screen.rgb_conv(bg_buf, bg_color);
814 }
815
816 /* Pointer to the current position on the screen. */
817 uint8_t *dp = (uint8_t *) &screen.fb_addr[FB_POS(x, y)];
818
819 /* Offset to add when moving to another screen scanline. */
820 unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
821
822 for (yd = 0; yd < FONT_SCANLINES; yd++) {
823 /* Byte containing bits of the glyph scanline. */
824 b = fb_font[glyph][yd];
825
826 for (i = 0; i < FONT_WIDTH; i++) {
827 /* Choose color based on the current bit. */
828 sp = (b & 0x80) ? fg_buf : bg_buf;
829
830 /* Copy the pixel. */
831 for (j = 0; j < screen.pixelbytes; j++) {
832 *dp++ = *sp++;
833 }
834
835 /* Move to the next bit. */
836 b = b << 1;
837 }
838
839 /* Move to the beginning of the next scanline of the cell. */
840 dp += d_add;
841 }
842}
843
844/** Draw glyph at specified position in viewport.
845 *
846 * @param vport Viewport identification
847 * @param cursor Draw glyph with cursor
848 * @param col Screen position relative to viewport
849 * @param row Screen position relative to viewport
850 *
851 */
852static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
853 unsigned int row)
854{
855 unsigned int x = vport->x + COL2X(col);
856 unsigned int y = vport->y + ROW2Y(row);
857
858 uint32_t glyph = vport->backbuf[BB_POS(vport, col, row)].glyph;
859 uint32_t fg_color = vport->backbuf[BB_POS(vport, col, row)].fg_color;
860 uint32_t bg_color = vport->backbuf[BB_POS(vport, col, row)].bg_color;
861
862 (*vport->dglyph)(x, y, cursor, screen.glyphs, glyph,
863 fg_color, bg_color);
864}
865
866/** Hide cursor if it is shown
867 *
868 */
869static void cursor_hide(viewport_t *vport)
870{
871 if ((vport->cursor_active) && (vport->cursor_shown)) {
872 draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
873 vport->cursor_shown = false;
874 }
875}
876
877
878/** Show cursor if cursor showing is enabled
879 *
880 */
881static void cursor_show(viewport_t *vport)
882{
883 /* Do not check for cursor_shown */
884 if (vport->cursor_active) {
885 draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
886 vport->cursor_shown = true;
887 }
888}
889
890
891/** Invert cursor, if it is enabled
892 *
893 */
894static void cursor_blink(viewport_t *vport)
895{
896 if (vport->cursor_shown)
897 cursor_hide(vport);
898 else
899 cursor_show(vport);
900}
901
902
903/** Draw character at given position relative to viewport
904 *
905 * @param vport Viewport identification
906 * @param c Character to draw
907 * @param col Screen position relative to viewport
908 * @param row Screen position relative to viewport
909 *
910 */
911static void draw_char(viewport_t *vport, wchar_t c, unsigned int col, unsigned int row)
912{
913 bb_cell_t *bbp;
914
915 /* Do not hide cursor if we are going to overwrite it */
916 if ((vport->cursor_active) && (vport->cursor_shown) &&
917 ((vport->cur_col != col) || (vport->cur_row != row)))
918 cursor_hide(vport);
919
920 bbp = &vport->backbuf[BB_POS(vport, col, row)];
921 bbp->glyph = fb_font_glyph(c);
922 bbp->fg_color = vport->attr.fg_color;
923 bbp->bg_color = vport->attr.bg_color;
924
925 draw_vp_glyph(vport, false, col, row);
926
927 vport->cur_col = col;
928 vport->cur_row = row;
929
930 vport->cur_col++;
931 if (vport->cur_col >= vport->cols) {
932 vport->cur_col = 0;
933 vport->cur_row++;
934 if (vport->cur_row >= vport->rows)
935 vport->cur_row--;
936 }
937
938 cursor_show(vport);
939}
940
941/** Draw text data to viewport.
942 *
943 * @param vport Viewport id
944 * @param data Text data.
945 * @param x Leftmost column of the area.
946 * @param y Topmost row of the area.
947 * @param w Number of rows.
948 * @param h Number of columns.
949 *
950 */
951static void draw_text_data(viewport_t *vport, keyfield_t *data, unsigned int x,
952 unsigned int y, unsigned int w, unsigned int h)
953{
954 unsigned int i;
955 unsigned int j;
956 bb_cell_t *bbp;
957 attrs_t *a;
958
959 for (j = 0; j < h; j++) {
960 for (i = 0; i < w; i++) {
961 unsigned int col = x + i;
962 unsigned int row = y + j;
963
964 bbp = &vport->backbuf[BB_POS(vport, col, row)];
965
966 a = &data[j * w + i].attrs;
967
968 attr_rgb_t rgb;
969 rgb.fg_color = 0;
970 rgb.bg_color = 0;
971 rgb_from_attr(&rgb, a);
972
973 bbp->glyph = fb_font_glyph(data[j * w + i].character);
974 bbp->fg_color = rgb.fg_color;
975 bbp->bg_color = rgb.bg_color;
976
977 draw_vp_glyph(vport, false, col, row);
978 }
979 }
980 cursor_show(vport);
981}
982
983
984static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
985{
986 int pm = *((int *) data);
987 pixmap_t *pmap = &pixmaps[pm];
988 unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
989
990 screen.rgb_conv(&pmap->data[pos], color);
991}
992
993
994static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
995{
996 viewport_t *vport = (viewport_t *) data;
997 unsigned int dx = vport->x + x;
998 unsigned int dy = vport->y + y;
999
1000 screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
1001}
1002
1003
1004/** Return first free pixmap
1005 *
1006 */
1007static int find_free_pixmap(void)
1008{
1009 unsigned int i;
1010
1011 for (i = 0; i < MAX_PIXMAPS; i++)
1012 if (!pixmaps[i].data)
1013 return i;
1014
1015 return -1;
1016}
1017
1018
1019/** Create a new pixmap and return appropriate ID
1020 *
1021 */
1022static int shm2pixmap(unsigned char *shm, size_t size)
1023{
1024 int pm;
1025 pixmap_t *pmap;
1026
1027 pm = find_free_pixmap();
1028 if (pm == -1)
1029 return ELIMIT;
1030
1031 pmap = &pixmaps[pm];
1032
1033 if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
1034 return EINVAL;
1035
1036 pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
1037 if (!pmap->data)
1038 return ENOMEM;
1039
1040 ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
1041
1042 return pm;
1043}
1044
1045
1046/** Handle shared memory communication calls
1047 *
1048 * Protocol for drawing pixmaps:
1049 * - FB_PREPARE_SHM(client shm identification)
1050 * - IPC_M_AS_AREA_SEND
1051 * - FB_DRAW_PPM(startx, starty)
1052 * - FB_DROP_SHM
1053 *
1054 * Protocol for text drawing
1055 * - IPC_M_AS_AREA_SEND
1056 * - FB_DRAW_TEXT_DATA
1057 *
1058 * @param callid Callid of the current call
1059 * @param call Current call data
1060 * @param vp Active viewport
1061 *
1062 * @return false if the call was not handled byt this function, true otherwise
1063 *
1064 * Note: this function is not thread-safe, you would have
1065 * to redefine static variables with fibril_local.
1066 *
1067 */
1068static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1069{
1070 static keyfield_t *interbuffer = NULL;
1071 static size_t intersize = 0;
1072
1073 static unsigned char *shm = NULL;
1074 static ipcarg_t shm_id = 0;
1075 static size_t shm_size;
1076
1077 bool handled = true;
1078 int retval = EOK;
1079 viewport_t *vport = &viewports[vp];
1080 unsigned int x;
1081 unsigned int y;
1082 unsigned int w;
1083 unsigned int h;
1084
1085 switch (IPC_GET_METHOD(*call)) {
1086 case IPC_M_SHARE_OUT:
1087 /* We accept one area for data interchange */
1088 if (IPC_GET_ARG1(*call) == shm_id) {
1089 void *dest = as_get_mappable_page(IPC_GET_ARG2(*call));
1090 shm_size = IPC_GET_ARG2(*call);
1091 if (ipc_answer_1(callid, EOK, (sysarg_t) dest)) {
1092 shm_id = 0;
1093 return false;
1094 }
1095 shm = dest;
1096
1097 if (shm[0] != 'P')
1098 return false;
1099
1100 return true;
1101 } else {
1102 intersize = IPC_GET_ARG2(*call);
1103 receive_comm_area(callid, call, (void *) &interbuffer);
1104 }
1105 return true;
1106 case FB_PREPARE_SHM:
1107 if (shm_id)
1108 retval = EBUSY;
1109 else
1110 shm_id = IPC_GET_ARG1(*call);
1111 break;
1112
1113 case FB_DROP_SHM:
1114 if (shm) {
1115 as_area_destroy(shm);
1116 shm = NULL;
1117 }
1118 shm_id = 0;
1119 break;
1120
1121 case FB_SHM2PIXMAP:
1122 if (!shm) {
1123 retval = EINVAL;
1124 break;
1125 }
1126 retval = shm2pixmap(shm, shm_size);
1127 break;
1128 case FB_DRAW_PPM:
1129 if (!shm) {
1130 retval = EINVAL;
1131 break;
1132 }
1133 x = IPC_GET_ARG1(*call);
1134 y = IPC_GET_ARG2(*call);
1135
1136 if ((x > vport->width) || (y > vport->height)) {
1137 retval = EINVAL;
1138 break;
1139 }
1140
1141 ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
1142 IPC_GET_ARG2(*call), vport->width - x, vport->height - y, putpixel, (void *) vport);
1143 break;
1144 case FB_DRAW_TEXT_DATA:
1145 x = IPC_GET_ARG1(*call);
1146 y = IPC_GET_ARG2(*call);
1147 w = IPC_GET_ARG3(*call);
1148 h = IPC_GET_ARG4(*call);
1149 if (!interbuffer) {
1150 retval = EINVAL;
1151 break;
1152 }
1153 if (x + w > vport->cols || y + h > vport->rows) {
1154 retval = EINVAL;
1155 break;
1156 }
1157 if (intersize < w * h * sizeof(*interbuffer)) {
1158 retval = EINVAL;
1159 break;
1160 }
1161 draw_text_data(vport, interbuffer, x, y, w, h);
1162 break;
1163 default:
1164 handled = false;
1165 }
1166
1167 if (handled)
1168 ipc_answer_0(callid, retval);
1169 return handled;
1170}
1171
1172
1173static void copy_vp_to_pixmap(viewport_t *vport, pixmap_t *pmap)
1174{
1175 unsigned int width = vport->width;
1176 unsigned int height = vport->height;
1177
1178 if (width + vport->x > screen.xres)
1179 width = screen.xres - vport->x;
1180 if (height + vport->y > screen.yres)
1181 height = screen.yres - vport->y;
1182
1183 unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1184 unsigned int realheight = pmap->height <= height ? pmap->height : height;
1185
1186 unsigned int srcrowsize = vport->width * screen.pixelbytes;
1187 unsigned int realrowsize = realwidth * screen.pixelbytes;
1188
1189 unsigned int y;
1190 for (y = 0; y < realheight; y++) {
1191 unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1192 memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1193 }
1194}
1195
1196
1197/** Save viewport to pixmap
1198 *
1199 */
1200static int save_vp_to_pixmap(viewport_t *vport)
1201{
1202 int pm;
1203 pixmap_t *pmap;
1204
1205 pm = find_free_pixmap();
1206 if (pm == -1)
1207 return ELIMIT;
1208
1209 pmap = &pixmaps[pm];
1210 pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
1211 if (!pmap->data)
1212 return ENOMEM;
1213
1214 pmap->width = vport->width;
1215 pmap->height = vport->height;
1216
1217 copy_vp_to_pixmap(vport, pmap);
1218
1219 return pm;
1220}
1221
1222
1223/** Draw pixmap on screen
1224 *
1225 * @param vp Viewport to draw on
1226 * @param pm Pixmap identifier
1227 *
1228 */
1229static int draw_pixmap(int vp, int pm)
1230{
1231 pixmap_t *pmap = &pixmaps[pm];
1232 viewport_t *vport = &viewports[vp];
1233
1234 unsigned int width = vport->width;
1235 unsigned int height = vport->height;
1236
1237 if (width + vport->x > screen.xres)
1238 width = screen.xres - vport->x;
1239 if (height + vport->y > screen.yres)
1240 height = screen.yres - vport->y;
1241
1242 if (!pmap->data)
1243 return EINVAL;
1244
1245 unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1246 unsigned int realheight = pmap->height <= height ? pmap->height : height;
1247
1248 unsigned int srcrowsize = vport->width * screen.pixelbytes;
1249 unsigned int realrowsize = realwidth * screen.pixelbytes;
1250
1251 unsigned int y;
1252 for (y = 0; y < realheight; y++) {
1253 unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1254 memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1255 }
1256
1257 return EOK;
1258}
1259
1260
1261/** Tick animation one step forward
1262 *
1263 */
1264static void anims_tick(void)
1265{
1266 unsigned int i;
1267 static int counts = 0;
1268
1269 /* Limit redrawing */
1270 counts = (counts + 1) % 8;
1271 if (counts)
1272 return;
1273
1274 for (i = 0; i < MAX_ANIMATIONS; i++) {
1275 if ((!animations[i].animlen) || (!animations[i].initialized) ||
1276 (!animations[i].enabled))
1277 continue;
1278
1279 draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
1280 animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1281 }
1282}
1283
1284
1285static unsigned int pointer_x;
1286static unsigned int pointer_y;
1287static bool pointer_shown, pointer_enabled;
1288static int pointer_vport = -1;
1289static int pointer_pixmap = -1;
1290
1291
1292static void mouse_show(void)
1293{
1294 int i, j;
1295 int visibility;
1296 int color;
1297 int bytepos;
1298
1299 if ((pointer_shown) || (!pointer_enabled))
1300 return;
1301
1302 /* Save image under the pointer. */
1303 if (pointer_vport == -1) {
1304 pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1305 if (pointer_vport < 0)
1306 return;
1307 } else {
1308 viewports[pointer_vport].x = pointer_x;
1309 viewports[pointer_vport].y = pointer_y;
1310 }
1311
1312 if (pointer_pixmap == -1)
1313 pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
1314 else
1315 copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
1316
1317 /* Draw mouse pointer. */
1318 for (i = 0; i < pointer_height; i++)
1319 for (j = 0; j < pointer_width; j++) {
1320 bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
1321 visibility = pointer_mask_bits[bytepos] &
1322 (1 << (j % 8));
1323 if (visibility) {
1324 color = pointer_bits[bytepos] &
1325 (1 << (j % 8)) ? 0 : 0xffffff;
1326 if (pointer_x + j < screen.xres && pointer_y +
1327 i < screen.yres)
1328 putpixel(&viewports[0], pointer_x + j,
1329 pointer_y + i, color);
1330 }
1331 }
1332 pointer_shown = 1;
1333}
1334
1335
1336static void mouse_hide(void)
1337{
1338 /* Restore image under the pointer. */
1339 if (pointer_shown) {
1340 draw_pixmap(pointer_vport, pointer_pixmap);
1341 pointer_shown = 0;
1342 }
1343}
1344
1345
1346static void mouse_move(unsigned int x, unsigned int y)
1347{
1348 mouse_hide();
1349 pointer_x = x % screen.xres;
1350 pointer_y = y % screen.yres;
1351 mouse_show();
1352}
1353
1354
1355static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1356{
1357 bool handled = true;
1358 int retval = EOK;
1359 int i, nvp;
1360 int newval;
1361
1362 switch (IPC_GET_METHOD(*call)) {
1363 case FB_ANIM_CREATE:
1364 nvp = IPC_GET_ARG1(*call);
1365 if (nvp == -1)
1366 nvp = vp;
1367 if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1368 !viewports[nvp].initialized) {
1369 retval = EINVAL;
1370 break;
1371 }
1372 for (i = 0; i < MAX_ANIMATIONS; i++) {
1373 if (!animations[i].initialized)
1374 break;
1375 }
1376 if (i == MAX_ANIMATIONS) {
1377 retval = ELIMIT;
1378 break;
1379 }
1380 animations[i].initialized = 1;
1381 animations[i].animlen = 0;
1382 animations[i].pos = 0;
1383 animations[i].enabled = 0;
1384 animations[i].vp = nvp;
1385 retval = i;
1386 break;
1387 case FB_ANIM_DROP:
1388 i = IPC_GET_ARG1(*call);
1389 if (i >= MAX_ANIMATIONS || i < 0) {
1390 retval = EINVAL;
1391 break;
1392 }
1393 animations[i].initialized = 0;
1394 break;
1395 case FB_ANIM_ADDPIXMAP:
1396 i = IPC_GET_ARG1(*call);
1397 if (i >= MAX_ANIMATIONS || i < 0 ||
1398 !animations[i].initialized) {
1399 retval = EINVAL;
1400 break;
1401 }
1402 if (animations[i].animlen == MAX_ANIM_LEN) {
1403 retval = ELIMIT;
1404 break;
1405 }
1406 newval = IPC_GET_ARG2(*call);
1407 if (newval < 0 || newval > MAX_PIXMAPS ||
1408 !pixmaps[newval].data) {
1409 retval = EINVAL;
1410 break;
1411 }
1412 animations[i].pixmaps[animations[i].animlen++] = newval;
1413 break;
1414 case FB_ANIM_CHGVP:
1415 i = IPC_GET_ARG1(*call);
1416 if (i >= MAX_ANIMATIONS || i < 0) {
1417 retval = EINVAL;
1418 break;
1419 }
1420 nvp = IPC_GET_ARG2(*call);
1421 if (nvp == -1)
1422 nvp = vp;
1423 if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1424 !viewports[nvp].initialized) {
1425 retval = EINVAL;
1426 break;
1427 }
1428 animations[i].vp = nvp;
1429 break;
1430 case FB_ANIM_START:
1431 case FB_ANIM_STOP:
1432 i = IPC_GET_ARG1(*call);
1433 if (i >= MAX_ANIMATIONS || i < 0) {
1434 retval = EINVAL;
1435 break;
1436 }
1437 newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
1438 if (newval ^ animations[i].enabled) {
1439 animations[i].enabled = newval;
1440 anims_enabled += newval ? 1 : -1;
1441 }
1442 break;
1443 default:
1444 handled = 0;
1445 }
1446 if (handled)
1447 ipc_answer_0(callid, retval);
1448 return handled;
1449}
1450
1451
1452/** Handler for messages concerning pixmap handling
1453 *
1454 */
1455static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1456{
1457 bool handled = true;
1458 int retval = EOK;
1459 int i, nvp;
1460
1461 switch (IPC_GET_METHOD(*call)) {
1462 case FB_VP_DRAW_PIXMAP:
1463 nvp = IPC_GET_ARG1(*call);
1464 if (nvp == -1)
1465 nvp = vp;
1466 if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1467 !viewports[nvp].initialized) {
1468 retval = EINVAL;
1469 break;
1470 }
1471 i = IPC_GET_ARG2(*call);
1472 retval = draw_pixmap(nvp, i);
1473 break;
1474 case FB_VP2PIXMAP:
1475 nvp = IPC_GET_ARG1(*call);
1476 if (nvp == -1)
1477 nvp = vp;
1478 if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1479 !viewports[nvp].initialized)
1480 retval = EINVAL;
1481 else
1482 retval = save_vp_to_pixmap(&viewports[nvp]);
1483 break;
1484 case FB_DROP_PIXMAP:
1485 i = IPC_GET_ARG1(*call);
1486 if (i >= MAX_PIXMAPS) {
1487 retval = EINVAL;
1488 break;
1489 }
1490 if (pixmaps[i].data) {
1491 free(pixmaps[i].data);
1492 pixmaps[i].data = NULL;
1493 }
1494 break;
1495 default:
1496 handled = 0;
1497 }
1498
1499 if (handled)
1500 ipc_answer_0(callid, retval);
1501 return handled;
1502
1503}
1504
1505static int rgb_from_style(attr_rgb_t *rgb, int style)
1506{
1507 switch (style) {
1508 case STYLE_NORMAL:
1509 rgb->fg_color = color_table[COLOR_BLACK];
1510 rgb->bg_color = color_table[COLOR_WHITE];
1511 break;
1512 case STYLE_EMPHASIS:
1513 rgb->fg_color = color_table[COLOR_RED];
1514 rgb->bg_color = color_table[COLOR_WHITE];
1515 break;
1516 case STYLE_INVERTED:
1517 rgb->fg_color = color_table[COLOR_WHITE];
1518 rgb->bg_color = color_table[COLOR_BLACK];
1519 break;
1520 case STYLE_SELECTED:
1521 rgb->fg_color = color_table[COLOR_WHITE];
1522 rgb->bg_color = color_table[COLOR_RED];
1523 break;
1524 default:
1525 return EINVAL;
1526 }
1527
1528 return EOK;
1529}
1530
1531static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
1532 ipcarg_t bg_color, ipcarg_t flags)
1533{
1534 fg_color = (fg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1535 bg_color = (bg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1536
1537 rgb->fg_color = color_table[fg_color];
1538 rgb->bg_color = color_table[bg_color];
1539
1540 return EOK;
1541}
1542
1543static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a)
1544{
1545 int rc;
1546
1547 switch (a->t) {
1548 case at_style:
1549 rc = rgb_from_style(rgb, a->a.s.style);
1550 break;
1551 case at_idx:
1552 rc = rgb_from_idx(rgb, a->a.i.fg_color,
1553 a->a.i.bg_color, a->a.i.flags);
1554 break;
1555 case at_rgb:
1556 *rgb = a->a.r;
1557 rc = EOK;
1558 break;
1559 }
1560
1561 return rc;
1562}
1563
1564static int fb_set_style(viewport_t *vport, ipcarg_t style)
1565{
1566 return rgb_from_style(&vport->attr, (int) style);
1567}
1568
1569static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
1570 ipcarg_t bg_color, ipcarg_t flags)
1571{
1572 return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
1573}
1574
1575/** Function for handling connections to FB
1576 *
1577 */
1578static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1579{
1580 unsigned int vp = 0;
1581 viewport_t *vport = &viewports[vp];
1582
1583 if (client_connected) {
1584 ipc_answer_0(iid, ELIMIT);
1585 return;
1586 }
1587
1588 /* Accept connection */
1589 client_connected = true;
1590 ipc_answer_0(iid, EOK);
1591
1592 while (true) {
1593 ipc_callid_t callid;
1594 ipc_call_t call;
1595 int retval;
1596 unsigned int i;
1597 int scroll;
1598 wchar_t ch;
1599 unsigned int col, row;
1600
1601 if ((vport->cursor_active) || (anims_enabled))
1602 callid = async_get_call_timeout(&call, 250000);
1603 else
1604 callid = async_get_call(&call);
1605
1606 mouse_hide();
1607 if (!callid) {
1608 cursor_blink(vport);
1609 anims_tick();
1610 mouse_show();
1611 continue;
1612 }
1613
1614 if (shm_handle(callid, &call, vp))
1615 continue;
1616
1617 if (pixmap_handle(callid, &call, vp))
1618 continue;
1619
1620 if (anim_handle(callid, &call, vp))
1621 continue;
1622
1623 switch (IPC_GET_METHOD(call)) {
1624 case IPC_M_PHONE_HUNGUP:
1625 client_connected = false;
1626
1627 /* Cleanup other viewports */
1628 for (i = 1; i < MAX_VIEWPORTS; i++)
1629 vport->initialized = false;
1630
1631 /* Exit thread */
1632 return;
1633
1634 case FB_PUTCHAR:
1635 ch = IPC_GET_ARG1(call);
1636 col = IPC_GET_ARG2(call);
1637 row = IPC_GET_ARG3(call);
1638
1639 if ((col >= vport->cols) || (row >= vport->rows)) {
1640 retval = EINVAL;
1641 break;
1642 }
1643 ipc_answer_0(callid, EOK);
1644
1645 draw_char(vport, ch, col, row);
1646
1647 /* Message already answered */
1648 continue;
1649 case FB_CLEAR:
1650 vport_clear(vport);
1651 cursor_show(vport);
1652 retval = EOK;
1653 break;
1654 case FB_CURSOR_GOTO:
1655 col = IPC_GET_ARG1(call);
1656 row = IPC_GET_ARG2(call);
1657
1658 if ((col >= vport->cols) || (row >= vport->rows)) {
1659 retval = EINVAL;
1660 break;
1661 }
1662 retval = EOK;
1663
1664 cursor_hide(vport);
1665 vport->cur_col = col;
1666 vport->cur_row = row;
1667 cursor_show(vport);
1668 break;
1669 case FB_CURSOR_VISIBILITY:
1670 cursor_hide(vport);
1671 vport->cursor_active = IPC_GET_ARG1(call);
1672 cursor_show(vport);
1673 retval = EOK;
1674 break;
1675 case FB_GET_CSIZE:
1676 ipc_answer_2(callid, EOK, vport->cols, vport->rows);
1677 continue;
1678 case FB_GET_COLOR_CAP:
1679 ipc_answer_1(callid, EOK, FB_CCAP_RGB);
1680 continue;
1681 case FB_SCROLL:
1682 scroll = IPC_GET_ARG1(call);
1683 if ((scroll > (int) vport->rows) || (scroll < (-(int) vport->rows))) {
1684 retval = EINVAL;
1685 break;
1686 }
1687 cursor_hide(vport);
1688 vport_scroll(vport, scroll);
1689 cursor_show(vport);
1690 retval = EOK;
1691 break;
1692 case FB_VIEWPORT_SWITCH:
1693 i = IPC_GET_ARG1(call);
1694 if (i >= MAX_VIEWPORTS) {
1695 retval = EINVAL;
1696 break;
1697 }
1698 if (!viewports[i].initialized) {
1699 retval = EADDRNOTAVAIL;
1700 break;
1701 }
1702 cursor_hide(vport);
1703 vp = i;
1704 vport = &viewports[vp];
1705 cursor_show(vport);
1706 retval = EOK;
1707 break;
1708 case FB_VIEWPORT_CREATE:
1709 retval = vport_create(IPC_GET_ARG1(call) >> 16,
1710 IPC_GET_ARG1(call) & 0xffff,
1711 IPC_GET_ARG2(call) >> 16,
1712 IPC_GET_ARG2(call) & 0xffff);
1713 break;
1714 case FB_VIEWPORT_DELETE:
1715 i = IPC_GET_ARG1(call);
1716 if (i >= MAX_VIEWPORTS) {
1717 retval = EINVAL;
1718 break;
1719 }
1720 if (!viewports[i].initialized) {
1721 retval = EADDRNOTAVAIL;
1722 break;
1723 }
1724 viewports[i].initialized = false;
1725 if (viewports[i].bgpixel)
1726 free(viewports[i].bgpixel);
1727 if (viewports[i].backbuf)
1728 free(viewports[i].backbuf);
1729 retval = EOK;
1730 break;
1731 case FB_SET_STYLE:
1732 retval = fb_set_style(vport, IPC_GET_ARG1(call));
1733 break;
1734 case FB_SET_COLOR:
1735 retval = fb_set_color(vport, IPC_GET_ARG1(call),
1736 IPC_GET_ARG2(call), IPC_GET_ARG3(call));
1737 break;
1738 case FB_SET_RGB_COLOR:
1739 vport->attr.fg_color = IPC_GET_ARG1(call);
1740 vport->attr.bg_color = IPC_GET_ARG2(call);
1741 retval = EOK;
1742 break;
1743 case FB_GET_RESOLUTION:
1744 ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1745 continue;
1746 case FB_POINTER_MOVE:
1747 pointer_enabled = true;
1748 mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
1749 retval = EOK;
1750 break;
1751 case FB_SCREEN_YIELD:
1752 case FB_SCREEN_RECLAIM:
1753 retval = EOK;
1754 break;
1755 default:
1756 retval = ENOENT;
1757 }
1758 ipc_answer_0(callid, retval);
1759 }
1760}
1761
1762/** Initialization of framebuffer
1763 *
1764 */
1765int fb_init(void)
1766{
1767 async_set_client_connection(fb_client_connection);
1768
1769 sysarg_t fb_ph_addr;
1770 if (sysinfo_get_value("fb.address.physical", &fb_ph_addr) != EOK)
1771 return -1;
1772
1773 sysarg_t fb_offset;
1774 if (sysinfo_get_value("fb.offset", &fb_offset) != EOK)
1775 fb_offset = 0;
1776
1777 sysarg_t fb_width;
1778 if (sysinfo_get_value("fb.width", &fb_width) != EOK)
1779 return -1;
1780
1781 sysarg_t fb_height;
1782 if (sysinfo_get_value("fb.height", &fb_height) != EOK)
1783 return -1;
1784
1785 sysarg_t fb_scanline;
1786 if (sysinfo_get_value("fb.scanline", &fb_scanline) != EOK)
1787 return -1;
1788
1789 sysarg_t fb_visual;
1790 if (sysinfo_get_value("fb.visual", &fb_visual) != EOK)
1791 return -1;
1792
1793 sysarg_t fbsize = fb_scanline * fb_height;
1794 void *fb_addr = as_get_mappable_page(fbsize);
1795
1796 if (physmem_map((void *) fb_ph_addr + fb_offset, fb_addr,
1797 ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE) != 0)
1798 return -1;
1799
1800 if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1801 return 0;
1802
1803 return -1;
1804}
1805
1806/**
1807 * @}
1808 */
Note: See TracBrowser for help on using the repository browser.