source: mainline/uspace/srv/fb/fb.c@ 7f341820

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 7f341820 was ae318d3, checked in by Martin Decky <martin@…>, 16 years ago

overhaul pareas: use one single physical area for the physical address space not belonging to physical memory
  • Property mode set to 100644
File size: 39.0 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 <string.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 <console/color.h>
55#include <console/style.h>
56#include <async.h>
57#include <bool.h>
58
59#include "font-8x16.h"
60#include "fb.h"
61#include "main.h"
62#include "../console/screenbuffer.h"
63#include "ppm.h"
64
65#include "pointer.xbm"
66#include "pointer_mask.xbm"
67
68#define DEFAULT_BGCOLOR 0xf0f0f0
69#define DEFAULT_FGCOLOR 0x000000
70
71#define MAX_ANIM_LEN 8
72#define MAX_ANIMATIONS 4
73#define MAX_PIXMAPS 256 /**< Maximum number of saved pixmaps */
74#define MAX_VIEWPORTS 128 /**< Viewport is a rectangular area on the screen */
75
76/** Function to render a pixel from a RGB value. */
77typedef void (*rgb_conv_t)(void *, uint32_t);
78
79/** Function to draw a glyph. */
80typedef void (*dg_t)(unsigned int x, unsigned int y, bool cursor,
81 uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color);
82
83struct {
84 uint8_t *fb_addr;
85
86 unsigned int xres;
87 unsigned int yres;
88
89 unsigned int scanline;
90 unsigned int glyphscanline;
91
92 unsigned int pixelbytes;
93 unsigned int glyphbytes;
94
95 rgb_conv_t rgb_conv;
96} screen;
97
98/** Backbuffer character cell. */
99typedef struct {
100 uint8_t glyph;
101 uint32_t fg_color;
102 uint32_t bg_color;
103} bb_cell_t;
104
105typedef struct {
106 bool initialized;
107 unsigned int x;
108 unsigned int y;
109 unsigned int width;
110 unsigned int height;
111
112 /* Text support in window */
113 unsigned int cols;
114 unsigned int rows;
115
116 /*
117 * Style and glyphs for text printing
118 */
119
120 /** Current attributes. */
121 attr_rgb_t attr;
122
123 /** Pre-rendered mask for rendering glyphs. Different viewports
124 * might use different drawing functions depending on whether their
125 * scanlines are aligned on a word boundary.*/
126 uint8_t *glyphs;
127
128 uint8_t *bgpixel;
129
130 /** Glyph drawing function for this viewport. */
131 dg_t dglyph;
132
133 /* Auto-cursor position */
134 bool cursor_active;
135 unsigned int cur_col;
136 unsigned int cur_row;
137 bool cursor_shown;
138
139 /* Back buffer */
140 bb_cell_t *backbuf;
141 unsigned int bbsize;
142} viewport_t;
143
144typedef struct {
145 bool initialized;
146 bool enabled;
147 unsigned int vp;
148
149 unsigned int pos;
150 unsigned int animlen;
151 unsigned int pixmaps[MAX_ANIM_LEN];
152} animation_t;
153
154static animation_t animations[MAX_ANIMATIONS];
155static bool anims_enabled;
156
157typedef struct {
158 unsigned int width;
159 unsigned int height;
160 uint8_t *data;
161} pixmap_t;
162
163static pixmap_t pixmaps[MAX_PIXMAPS];
164static viewport_t viewports[128];
165
166static bool client_connected = false; /**< Allow only 1 connection */
167
168static uint32_t color_table[16] = {
169 [COLOR_BLACK] = 0x000000,
170 [COLOR_BLUE] = 0x0000f0,
171 [COLOR_GREEN] = 0x00f000,
172 [COLOR_CYAN] = 0x00f0f0,
173 [COLOR_RED] = 0xf00000,
174 [COLOR_MAGENTA] = 0xf000f0,
175 [COLOR_YELLOW] = 0xf0f000,
176 [COLOR_WHITE] = 0xf0f0f0,
177
178 [8 + COLOR_BLACK] = 0x000000,
179 [8 + COLOR_BLUE] = 0x0000ff,
180 [8 + COLOR_GREEN] = 0x00ff00,
181 [8 + COLOR_CYAN] = 0x00ffff,
182 [8 + COLOR_RED] = 0xff0000,
183 [8 + COLOR_MAGENTA] = 0xff00ff,
184 [8 + COLOR_YELLOW] = 0xffff00,
185 [8 + COLOR_WHITE] = 0xffffff,
186};
187
188static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a);
189static int rgb_from_style(attr_rgb_t *rgb, int style);
190static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
191 ipcarg_t bg_color, ipcarg_t flags);
192
193static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
194 ipcarg_t bg_color, ipcarg_t attr);
195
196static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
197 uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color);
198static void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
199 uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color);
200
201static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
202 unsigned int row);
203
204
205#define RED(x, bits) ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))
206#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
207#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
208
209#define COL2X(col) ((col) * FONT_WIDTH)
210#define ROW2Y(row) ((row) * FONT_SCANLINES)
211
212#define X2COL(x) ((x) / FONT_WIDTH)
213#define Y2ROW(y) ((y) / FONT_SCANLINES)
214
215#define FB_POS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
216#define BB_POS(vport, col, row) ((row) * vport->cols + (col))
217#define GLYPH_POS(glyph, y, cursor) (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
218
219
220/** ARGB 8:8:8:8 conversion
221 *
222 */
223static void rgb_0888(void *dst, uint32_t rgb)
224{
225 *((uint32_t *) dst) = rgb & 0xffffff;
226}
227
228
229/** ABGR 8:8:8:8 conversion
230 *
231 */
232static void bgr_0888(void *dst, uint32_t rgb)
233{
234 *((uint32_t *) dst)
235 = (BLUE(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | RED(rgb, 8);
236}
237
238
239/** RGB 8:8:8 conversion
240 *
241 */
242static void rgb_888(void *dst, uint32_t rgb)
243{
244 ((uint8_t *) dst)[0] = BLUE(rgb, 8);
245 ((uint8_t *) dst)[1] = GREEN(rgb, 8);
246 ((uint8_t *) dst)[2] = RED(rgb, 8);
247}
248
249
250/** BGR 8:8:8 conversion
251 *
252 */
253static void bgr_888(void *dst, uint32_t rgb)
254{
255 ((uint8_t *) dst)[0] = RED(rgb, 8);
256 ((uint8_t *) dst)[1] = GREEN(rgb, 8);
257 ((uint8_t *) dst)[2] = BLUE(rgb, 8);
258}
259
260
261/** RGB 5:5:5 conversion
262 *
263 */
264static void rgb_555(void *dst, uint32_t rgb)
265{
266 *((uint16_t *) dst)
267 = (RED(rgb, 5) << 10) | (GREEN(rgb, 5) << 5) | BLUE(rgb, 5);
268}
269
270
271/** RGB 5:6:5 conversion
272 *
273 */
274static void rgb_565(void *dst, uint32_t rgb)
275{
276 *((uint16_t *) dst)
277 = (RED(rgb, 5) << 11) | (GREEN(rgb, 6) << 5) | BLUE(rgb, 5);
278}
279
280
281/** RGB 3:2:3
282 *
283 */
284static void rgb_323(void *dst, uint32_t rgb)
285{
286 *((uint8_t *) dst)
287 = ~((RED(rgb, 3) << 5) | (GREEN(rgb, 2) << 3) | BLUE(rgb, 3));
288}
289
290/** Draw a filled rectangle.
291 *
292 * @note Need real implementation that does not access VRAM twice.
293 */
294static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
295 unsigned int y1, uint32_t color)
296{
297 unsigned int x, y;
298 unsigned int copy_bytes;
299
300 uint8_t *sp, *dp;
301 uint8_t cbuf[4];
302
303 if (y0 >= y1 || x0 >= x1) return;
304 screen.rgb_conv(cbuf, color);
305
306 sp = &screen.fb_addr[FB_POS(x0, y0)];
307 dp = sp;
308
309 /* Draw the first line. */
310 for (x = x0; x < x1; x++) {
311 memcpy(dp, cbuf, screen.pixelbytes);
312 dp += screen.pixelbytes;
313 }
314
315 dp = sp + screen.scanline;
316 copy_bytes = (x1 - x0) * screen.pixelbytes;
317
318 /* Draw the remaining lines by copying. */
319 for (y = y0 + 1; y < y1; y++) {
320 memcpy(dp, sp, copy_bytes);
321 dp += screen.scanline;
322 }
323}
324
325/** Redraw viewport.
326 *
327 * @param vport Viewport to redraw
328 *
329 */
330static void vport_redraw(viewport_t *vport)
331{
332 unsigned int row, col;
333
334 for (row = 0; row < vport->rows; row++) {
335 for (col = 0; col < vport->cols; col++) {
336 draw_vp_glyph(vport, false, col, row);
337 }
338 }
339
340 if (COL2X(vport->cols) < vport->width) {
341 draw_filled_rect(
342 vport->x + COL2X(vport->cols), vport->y,
343 vport->x + vport->width, vport->y + vport->height,
344 vport->attr.bg_color);
345 }
346
347 if (ROW2Y(vport->rows) < vport->height) {
348 draw_filled_rect(
349 vport->x, vport->y + ROW2Y(vport->rows),
350 vport->x + vport->width, vport->y + vport->height,
351 vport->attr.bg_color);
352 }
353}
354
355static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
356 uint32_t bg_color)
357{
358 unsigned i;
359
360 for (i = 0; i < len; i++) {
361 backbuf[i].glyph = 0;
362 backbuf[i].fg_color = fg_color;
363 backbuf[i].bg_color = bg_color;
364 }
365}
366
367/** Clear viewport.
368 *
369 * @param vport Viewport to clear
370 *
371 */
372static void vport_clear(viewport_t *vport)
373{
374 backbuf_clear(vport->backbuf, vport->cols * vport->rows,
375 vport->attr.fg_color, vport->attr.bg_color);
376 vport_redraw(vport);
377}
378
379/** Scroll viewport by the specified number of lines.
380 *
381 * @param vport Viewport to scroll
382 * @param lines Number of lines to scroll
383 *
384 */
385static void vport_scroll(viewport_t *vport, int lines)
386{
387 unsigned int row, col;
388 unsigned int x, y;
389 uint8_t glyph;
390 uint32_t fg_color;
391 uint32_t bg_color;
392 bb_cell_t *bbp, *xbp;
393
394 /*
395 * Redraw.
396 */
397
398 y = vport->y;
399 for (row = 0; row < vport->rows; row++) {
400 x = vport->x;
401 for (col = 0; col < vport->cols; col++) {
402 if ((row + lines >= 0) && (row + lines < vport->rows)) {
403 xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
404 bbp = &vport->backbuf[BB_POS(vport, col, row)];
405
406 glyph = xbp->glyph;
407 fg_color = xbp->fg_color;
408 bg_color = xbp->bg_color;
409
410 if (bbp->glyph == glyph &&
411 bbp->fg_color == xbp->fg_color &&
412 bbp->bg_color == xbp->bg_color) {
413 x += FONT_WIDTH;
414 continue;
415 }
416 } else {
417 glyph = 0;
418 fg_color = vport->attr.fg_color;
419 bg_color = vport->attr.bg_color;
420 }
421
422 (*vport->dglyph)(x, y, false, vport->glyphs, glyph,
423 fg_color, bg_color);
424 x += FONT_WIDTH;
425 }
426 y += FONT_SCANLINES;
427 }
428
429 /*
430 * Scroll backbuffer.
431 */
432
433 if (lines > 0) {
434 memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
435 vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
436 backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
437 vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
438 } else {
439 memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
440 vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
441 backbuf_clear(vport->backbuf, - vport->cols * lines,
442 vport->attr.fg_color, vport->attr.bg_color);
443 }
444}
445
446/** Render glyphs
447 *
448 * Convert glyphs from device independent font
449 * description to current visual representation.
450 *
451 * @param vport Viewport
452 *
453 */
454static void render_glyphs(viewport_t* vport)
455{
456 unsigned int glyph;
457
458 for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
459 unsigned int y;
460
461 for (y = 0; y < FONT_SCANLINES; y++) {
462 unsigned int x;
463
464 for (x = 0; x < FONT_WIDTH; x++) {
465 screen.rgb_conv(&vport->glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
466 (fb_font[glyph * FONT_SCANLINES + y] & (1 << (7 - x)))
467 ? 0xffffff : 0x000000);
468
469 screen.rgb_conv(&vport->glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
470 (fb_font[glyph * FONT_SCANLINES + y] & (1 << (7 - x)))
471 ? 0x000000 : 0xffffff);
472 }
473 }
474 }
475
476 screen.rgb_conv(vport->bgpixel, vport->attr.bg_color);
477}
478
479
480/** Create new viewport
481 *
482 * @param x Origin of the viewport (x).
483 * @param y Origin of the viewport (y).
484 * @param width Width of the viewport.
485 * @param height Height of the viewport.
486 *
487 * @return New viewport number.
488 *
489 */
490static int vport_create(unsigned int x, unsigned int y,
491 unsigned int width, unsigned int height)
492{
493 unsigned int i;
494
495 for (i = 0; i < MAX_VIEWPORTS; i++) {
496 if (!viewports[i].initialized)
497 break;
498 }
499 if (i == MAX_VIEWPORTS)
500 return ELIMIT;
501
502 unsigned int cols = width / FONT_WIDTH;
503 unsigned int rows = height / FONT_SCANLINES;
504 unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
505 unsigned int glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
506 unsigned int word_size = sizeof(unsigned long);
507
508 bb_cell_t *backbuf = (bb_cell_t *) malloc(bbsize);
509 if (!backbuf)
510 return ENOMEM;
511
512 uint8_t *glyphs = (uint8_t *) malloc(glyphsize);
513 if (!glyphs) {
514 free(backbuf);
515 return ENOMEM;
516 }
517
518 uint8_t *bgpixel = (uint8_t *) malloc(screen.pixelbytes);
519 if (!bgpixel) {
520 free(glyphs);
521 free(backbuf);
522 return ENOMEM;
523 }
524
525 backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
526 memset(glyphs, 0, glyphsize);
527 memset(bgpixel, 0, screen.pixelbytes);
528
529 viewports[i].x = x;
530 viewports[i].y = y;
531 viewports[i].width = width;
532 viewports[i].height = height;
533
534 viewports[i].cols = cols;
535 viewports[i].rows = rows;
536
537 viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
538 viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
539
540 viewports[i].glyphs = glyphs;
541 viewports[i].bgpixel = bgpixel;
542
543 /*
544 * Conditions necessary to select aligned version:
545 *
546 * - word size is divisible by pixelbytes
547 * - cell scanline size is divisible by word size
548 * - cell scanlines are word-aligned
549 */
550 if ((word_size % screen.pixelbytes) == 0 &&
551 (FONT_WIDTH * screen.pixelbytes) % word_size == 0 &&
552 (x * screen.pixelbytes) % word_size == 0 &&
553 screen.scanline % word_size == 0) {
554
555 viewports[i].dglyph = draw_glyph_aligned;
556 } else {
557 viewports[i].dglyph = draw_glyph_fallback;
558 }
559
560 viewports[i].cur_col = 0;
561 viewports[i].cur_row = 0;
562 viewports[i].cursor_active = false;
563 viewports[i].cursor_shown = false;
564
565 viewports[i].bbsize = bbsize;
566 viewports[i].backbuf = backbuf;
567
568 viewports[i].initialized = true;
569
570 render_glyphs(&viewports[i]);
571
572 return i;
573}
574
575
576/** Initialize framebuffer as a chardev output device
577 *
578 * @param addr Address of the framebuffer
579 * @param xres Screen width in pixels
580 * @param yres Screen height in pixels
581 * @param visual Bits per pixel (8, 16, 24, 32)
582 * @param scan Bytes per one scanline
583 *
584 */
585static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
586 unsigned int scan, unsigned int visual)
587{
588 switch (visual) {
589 case VISUAL_INDIRECT_8:
590 screen.rgb_conv = rgb_323;
591 screen.pixelbytes = 1;
592 break;
593 case VISUAL_RGB_5_5_5:
594 screen.rgb_conv = rgb_555;
595 screen.pixelbytes = 2;
596 break;
597 case VISUAL_RGB_5_6_5:
598 screen.rgb_conv = rgb_565;
599 screen.pixelbytes = 2;
600 break;
601 case VISUAL_RGB_8_8_8:
602 screen.rgb_conv = rgb_888;
603 screen.pixelbytes = 3;
604 break;
605 case VISUAL_BGR_8_8_8:
606 screen.rgb_conv = bgr_888;
607 screen.pixelbytes = 3;
608 break;
609 case VISUAL_RGB_8_8_8_0:
610 screen.rgb_conv = rgb_888;
611 screen.pixelbytes = 4;
612 break;
613 case VISUAL_RGB_0_8_8_8:
614 screen.rgb_conv = rgb_0888;
615 screen.pixelbytes = 4;
616 break;
617 case VISUAL_BGR_0_8_8_8:
618 screen.rgb_conv = bgr_0888;
619 screen.pixelbytes = 4;
620 break;
621 default:
622 return false;
623 }
624
625 screen.fb_addr = (unsigned char *) addr;
626 screen.xres = xres;
627 screen.yres = yres;
628 screen.scanline = scan;
629
630 screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
631 screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
632
633 /* Create first viewport */
634 vport_create(0, 0, xres, yres);
635
636 return true;
637}
638
639
640/** Draw a glyph, takes advantage of alignment.
641 *
642 * This version can only be used if the following conditions are met:
643 *
644 * - word size is divisible by pixelbytes
645 * - cell scanline size is divisible by word size
646 * - cell scanlines are word-aligned
647 *
648 * It makes use of the pre-rendered mask to process (possibly) several
649 * pixels at once (word size / pixelbytes pixels at a time are processed)
650 * making it very fast. Most notably this version is not applicable at 24 bits
651 * per pixel.
652 *
653 * @param x x coordinate of top-left corner on screen.
654 * @param y y coordinate of top-left corner on screen.
655 * @param cursor Draw glyph with cursor
656 * @param glyphs Pointer to font bitmap.
657 * @param glyph Code of the glyph to draw.
658 * @param fg_color Foreground color.
659 * @param bg_color Backgroudn color.
660 */
661static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
662 uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color)
663{
664 unsigned int i, yd;
665 unsigned long fg_buf, bg_buf;
666 unsigned long *maskp, *dp;
667 unsigned long mask;
668 unsigned int ww, d_add;
669
670 /*
671 * Prepare a pair of words, one filled with foreground-color
672 * pattern and the other filled with background-color pattern.
673 */
674 for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
675 screen.rgb_conv(&((uint8_t *)&fg_buf)[i * screen.pixelbytes],
676 fg_color);
677 screen.rgb_conv(&((uint8_t *)&bg_buf)[i * screen.pixelbytes],
678 bg_color);
679 }
680
681
682 /* Pointer to the current position in the mask. */
683 maskp = (unsigned long *) &glyphs[GLYPH_POS(glyph, 0, cursor)];
684
685 /* Pointer to the current position on the screen. */
686 dp = (unsigned long *) &screen.fb_addr[FB_POS(x, y)];
687
688 /* Width of the character cell in words. */
689 ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
690
691 /* Offset to add when moving to another screen scanline. */
692 d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
693
694 for (yd = 0; yd < FONT_SCANLINES; yd++) {
695 /*
696 * Now process the cell scanline, combining foreground
697 * and background color patters using the pre-rendered mask.
698 */
699 for (i = 0; i < ww; i++) {
700 mask = *maskp++;
701 *dp++ = (fg_buf & mask) | (bg_buf & ~mask);
702 }
703
704 /* Move to the beginning of the next scanline of the cell. */
705 dp = (unsigned long *) ((uint8_t *) dp + d_add);
706 }
707}
708
709/** Draw a glyph, fallback version.
710 *
711 * This version does not make use of the pre-rendered mask, it uses
712 * the font bitmap directly. It works always, but it is slower.
713 *
714 * @param x x coordinate of top-left corner on screen.
715 * @param y y coordinate of top-left corner on screen.
716 * @param cursor Draw glyph with cursor
717 * @param glyphs Pointer to font bitmap.
718 * @param glyph Code of the glyph to draw.
719 * @param fg_color Foreground color.
720 * @param bg_color Backgroudn color.
721 */
722void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
723 uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color)
724{
725 unsigned int i, j, yd;
726 uint8_t fg_buf[4], bg_buf[4];
727 uint8_t *dp, *sp;
728 unsigned int d_add;
729 uint8_t b;
730
731 /* Pre-render 1x the foreground and background color pixels. */
732 if (cursor) {
733 screen.rgb_conv(fg_buf, bg_color);
734 screen.rgb_conv(bg_buf, fg_color);
735 } else {
736 screen.rgb_conv(fg_buf, fg_color);
737 screen.rgb_conv(bg_buf, bg_color);
738 }
739
740 /* Pointer to the current position on the screen. */
741 dp = (uint8_t *) &screen.fb_addr[FB_POS(x, y)];
742
743 /* Offset to add when moving to another screen scanline. */
744 d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
745
746 for (yd = 0; yd < FONT_SCANLINES; yd++) {
747 /* Byte containing bits of the glyph scanline. */
748 b = fb_font[glyph * FONT_SCANLINES + yd];
749
750 for (i = 0; i < FONT_WIDTH; i++) {
751 /* Choose color based on the current bit. */
752 sp = (b & 0x80) ? fg_buf : bg_buf;
753
754 /* Copy the pixel. */
755 for (j = 0; j < screen.pixelbytes; j++) {
756 *dp++ = *sp++;
757 }
758
759 /* Move to the next bit. */
760 b = b << 1;
761 }
762
763 /* Move to the beginning of the next scanline of the cell. */
764 dp += d_add;
765 }
766}
767
768/** Draw glyph at specified position in viewport.
769 *
770 * @param vport Viewport identification
771 * @param cursor Draw glyph with cursor
772 * @param col Screen position relative to viewport
773 * @param row Screen position relative to viewport
774 *
775 */
776static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
777 unsigned int row)
778{
779 unsigned int x = vport->x + COL2X(col);
780 unsigned int y = vport->y + ROW2Y(row);
781
782 uint8_t glyph;
783 uint32_t fg_color;
784 uint32_t bg_color;
785
786 glyph = vport->backbuf[BB_POS(vport, col, row)].glyph;
787 fg_color = vport->backbuf[BB_POS(vport, col, row)].fg_color;
788 bg_color = vport->backbuf[BB_POS(vport, col, row)].bg_color;
789
790 (*vport->dglyph)(x, y, cursor, vport->glyphs, glyph,
791 fg_color, bg_color);
792}
793
794/** Hide cursor if it is shown
795 *
796 */
797static void cursor_hide(viewport_t *vport)
798{
799 if ((vport->cursor_active) && (vport->cursor_shown)) {
800 draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
801 vport->cursor_shown = false;
802 }
803}
804
805
806/** Show cursor if cursor showing is enabled
807 *
808 */
809static void cursor_show(viewport_t *vport)
810{
811 /* Do not check for cursor_shown */
812 if (vport->cursor_active) {
813 draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
814 vport->cursor_shown = true;
815 }
816}
817
818
819/** Invert cursor, if it is enabled
820 *
821 */
822static void cursor_blink(viewport_t *vport)
823{
824 if (vport->cursor_shown)
825 cursor_hide(vport);
826 else
827 cursor_show(vport);
828}
829
830
831/** Draw character at given position relative to viewport
832 *
833 * @param vport Viewport identification
834 * @param c Character to draw
835 * @param col Screen position relative to viewport
836 * @param row Screen position relative to viewport
837 *
838 */
839static void draw_char(viewport_t *vport, uint8_t c, unsigned int col, unsigned int row)
840{
841 bb_cell_t *bbp;
842
843 /* Do not hide cursor if we are going to overwrite it */
844 if ((vport->cursor_active) && (vport->cursor_shown) &&
845 ((vport->cur_col != col) || (vport->cur_row != row)))
846 cursor_hide(vport);
847
848 bbp = &vport->backbuf[BB_POS(vport, col, row)];
849 bbp->glyph = c;
850 bbp->fg_color = vport->attr.fg_color;
851 bbp->bg_color = vport->attr.bg_color;
852
853 draw_vp_glyph(vport, false, col, row);
854
855 vport->cur_col = col;
856 vport->cur_row = row;
857
858 vport->cur_col++;
859 if (vport->cur_col >= vport->cols) {
860 vport->cur_col = 0;
861 vport->cur_row++;
862 if (vport->cur_row >= vport->rows)
863 vport->cur_row--;
864 }
865
866 cursor_show(vport);
867}
868
869
870/** Draw text data to viewport
871 *
872 * @param vport Viewport id
873 * @param data Text data fitting exactly into viewport
874 *
875 */
876static void draw_text_data(viewport_t *vport, keyfield_t *data)
877{
878 unsigned int i;
879 bb_cell_t *bbp;
880 attrs_t *a;
881 attr_rgb_t rgb;
882
883 for (i = 0; i < vport->cols * vport->rows; i++) {
884 unsigned int col = i % vport->cols;
885 unsigned int row = i / vport->cols;
886
887 bbp = &vport->backbuf[BB_POS(vport, col, row)];
888 uint8_t glyph = bbp->glyph;
889
890 a = &data[i].attrs;
891 rgb_from_attr(&rgb, a);
892
893 bbp->glyph = data[i].character;
894 bbp->fg_color = rgb.fg_color;
895 bbp->bg_color = rgb.bg_color;
896
897 draw_vp_glyph(vport, false, col, row);
898 }
899 cursor_show(vport);
900}
901
902
903static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
904{
905 int pm = *((int *) data);
906 pixmap_t *pmap = &pixmaps[pm];
907 unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
908
909 screen.rgb_conv(&pmap->data[pos], color);
910}
911
912
913static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
914{
915 viewport_t *vport = (viewport_t *) data;
916 unsigned int dx = vport->x + x;
917 unsigned int dy = vport->y + y;
918
919 screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
920}
921
922
923/** Return first free pixmap
924 *
925 */
926static int find_free_pixmap(void)
927{
928 unsigned int i;
929
930 for (i = 0; i < MAX_PIXMAPS; i++)
931 if (!pixmaps[i].data)
932 return i;
933
934 return -1;
935}
936
937
938/** Create a new pixmap and return appropriate ID
939 *
940 */
941static int shm2pixmap(unsigned char *shm, size_t size)
942{
943 int pm;
944 pixmap_t *pmap;
945
946 pm = find_free_pixmap();
947 if (pm == -1)
948 return ELIMIT;
949
950 pmap = &pixmaps[pm];
951
952 if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
953 return EINVAL;
954
955 pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
956 if (!pmap->data)
957 return ENOMEM;
958
959 ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
960
961 return pm;
962}
963
964
965/** Handle shared memory communication calls
966 *
967 * Protocol for drawing pixmaps:
968 * - FB_PREPARE_SHM(client shm identification)
969 * - IPC_M_AS_AREA_SEND
970 * - FB_DRAW_PPM(startx, starty)
971 * - FB_DROP_SHM
972 *
973 * Protocol for text drawing
974 * - IPC_M_AS_AREA_SEND
975 * - FB_DRAW_TEXT_DATA
976 *
977 * @param callid Callid of the current call
978 * @param call Current call data
979 * @param vp Active viewport
980 *
981 * @return false if the call was not handled byt this function, true otherwise
982 *
983 * Note: this function is not threads safe, you would have
984 * to redefine static variables with __thread
985 *
986 */
987static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
988{
989 static keyfield_t *interbuffer = NULL;
990 static size_t intersize = 0;
991
992 static unsigned char *shm = NULL;
993 static ipcarg_t shm_id = 0;
994 static size_t shm_size;
995
996 bool handled = true;
997 int retval = EOK;
998 viewport_t *vport = &viewports[vp];
999 unsigned int x;
1000 unsigned int y;
1001
1002 switch (IPC_GET_METHOD(*call)) {
1003 case IPC_M_SHARE_OUT:
1004 /* We accept one area for data interchange */
1005 if (IPC_GET_ARG1(*call) == shm_id) {
1006 void *dest = as_get_mappable_page(IPC_GET_ARG2(*call));
1007 shm_size = IPC_GET_ARG2(*call);
1008 if (!ipc_answer_1(callid, EOK, (sysarg_t) dest))
1009 shm = dest;
1010 else
1011 shm_id = 0;
1012
1013 if (shm[0] != 'P')
1014 return false;
1015
1016 return true;
1017 } else {
1018 intersize = IPC_GET_ARG2(*call);
1019 receive_comm_area(callid, call, (void *) &interbuffer);
1020 }
1021 return true;
1022 case FB_PREPARE_SHM:
1023 if (shm_id)
1024 retval = EBUSY;
1025 else
1026 shm_id = IPC_GET_ARG1(*call);
1027 break;
1028
1029 case FB_DROP_SHM:
1030 if (shm) {
1031 as_area_destroy(shm);
1032 shm = NULL;
1033 }
1034 shm_id = 0;
1035 break;
1036
1037 case FB_SHM2PIXMAP:
1038 if (!shm) {
1039 retval = EINVAL;
1040 break;
1041 }
1042 retval = shm2pixmap(shm, shm_size);
1043 break;
1044 case FB_DRAW_PPM:
1045 if (!shm) {
1046 retval = EINVAL;
1047 break;
1048 }
1049 x = IPC_GET_ARG1(*call);
1050 y = IPC_GET_ARG2(*call);
1051
1052 if ((x > vport->width) || (y > vport->height)) {
1053 retval = EINVAL;
1054 break;
1055 }
1056
1057 ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
1058 IPC_GET_ARG2(*call), vport->width - x, vport->height - y, putpixel, (void *) vport);
1059 break;
1060 case FB_DRAW_TEXT_DATA:
1061 if (!interbuffer) {
1062 retval = EINVAL;
1063 break;
1064 }
1065 if (intersize < vport->cols * vport->rows * sizeof(*interbuffer)) {
1066 retval = EINVAL;
1067 break;
1068 }
1069 draw_text_data(vport, interbuffer);
1070 break;
1071 default:
1072 handled = false;
1073 }
1074
1075 if (handled)
1076 ipc_answer_0(callid, retval);
1077 return handled;
1078}
1079
1080
1081static void copy_vp_to_pixmap(viewport_t *vport, pixmap_t *pmap)
1082{
1083 unsigned int width = vport->width;
1084 unsigned int height = vport->height;
1085
1086 if (width + vport->x > screen.xres)
1087 width = screen.xres - vport->x;
1088 if (height + vport->y > screen.yres)
1089 height = screen.yres - vport->y;
1090
1091 unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1092 unsigned int realheight = pmap->height <= height ? pmap->height : height;
1093
1094 unsigned int srcrowsize = vport->width * screen.pixelbytes;
1095 unsigned int realrowsize = realwidth * screen.pixelbytes;
1096
1097 unsigned int y;
1098 for (y = 0; y < realheight; y++) {
1099 unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1100 memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1101 }
1102}
1103
1104
1105/** Save viewport to pixmap
1106 *
1107 */
1108static int save_vp_to_pixmap(viewport_t *vport)
1109{
1110 int pm;
1111 pixmap_t *pmap;
1112
1113 pm = find_free_pixmap();
1114 if (pm == -1)
1115 return ELIMIT;
1116
1117 pmap = &pixmaps[pm];
1118 pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
1119 if (!pmap->data)
1120 return ENOMEM;
1121
1122 pmap->width = vport->width;
1123 pmap->height = vport->height;
1124
1125 copy_vp_to_pixmap(vport, pmap);
1126
1127 return pm;
1128}
1129
1130
1131/** Draw pixmap on screen
1132 *
1133 * @param vp Viewport to draw on
1134 * @param pm Pixmap identifier
1135 *
1136 */
1137static int draw_pixmap(int vp, int pm)
1138{
1139 pixmap_t *pmap = &pixmaps[pm];
1140 viewport_t *vport = &viewports[vp];
1141
1142 unsigned int width = vport->width;
1143 unsigned int height = vport->height;
1144
1145 if (width + vport->x > screen.xres)
1146 width = screen.xres - vport->x;
1147 if (height + vport->y > screen.yres)
1148 height = screen.yres - vport->y;
1149
1150 if (!pmap->data)
1151 return EINVAL;
1152
1153 unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1154 unsigned int realheight = pmap->height <= height ? pmap->height : height;
1155
1156 unsigned int srcrowsize = vport->width * screen.pixelbytes;
1157 unsigned int realrowsize = realwidth * screen.pixelbytes;
1158
1159 unsigned int y;
1160 for (y = 0; y < realheight; y++) {
1161 unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1162 memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1163 }
1164
1165 return EOK;
1166}
1167
1168
1169/** Tick animation one step forward
1170 *
1171 */
1172static void anims_tick(void)
1173{
1174 unsigned int i;
1175 static int counts = 0;
1176
1177 /* Limit redrawing */
1178 counts = (counts + 1) % 8;
1179 if (counts)
1180 return;
1181
1182 for (i = 0; i < MAX_ANIMATIONS; i++) {
1183 if ((!animations[i].animlen) || (!animations[i].initialized) ||
1184 (!animations[i].enabled))
1185 continue;
1186
1187 draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
1188 animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1189 }
1190}
1191
1192
1193static unsigned int pointer_x;
1194static unsigned int pointer_y;
1195static bool pointer_shown, pointer_enabled;
1196static int pointer_vport = -1;
1197static int pointer_pixmap = -1;
1198
1199
1200static void mouse_show(void)
1201{
1202 int i, j;
1203 int visibility;
1204 int color;
1205 int bytepos;
1206
1207 if ((pointer_shown) || (!pointer_enabled))
1208 return;
1209
1210 /* Save image under the pointer. */
1211 if (pointer_vport == -1) {
1212 pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1213 if (pointer_vport < 0)
1214 return;
1215 } else {
1216 viewports[pointer_vport].x = pointer_x;
1217 viewports[pointer_vport].y = pointer_y;
1218 }
1219
1220 if (pointer_pixmap == -1)
1221 pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
1222 else
1223 copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
1224
1225 /* Draw mouse pointer. */
1226 for (i = 0; i < pointer_height; i++)
1227 for (j = 0; j < pointer_width; j++) {
1228 bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
1229 visibility = pointer_mask_bits[bytepos] &
1230 (1 << (j % 8));
1231 if (visibility) {
1232 color = pointer_bits[bytepos] &
1233 (1 << (j % 8)) ? 0 : 0xffffff;
1234 if (pointer_x + j < screen.xres && pointer_y +
1235 i < screen.yres)
1236 putpixel(&viewports[0], pointer_x + j,
1237 pointer_y + i, color);
1238 }
1239 }
1240 pointer_shown = 1;
1241}
1242
1243
1244static void mouse_hide(void)
1245{
1246 /* Restore image under the pointer. */
1247 if (pointer_shown) {
1248 draw_pixmap(pointer_vport, pointer_pixmap);
1249 pointer_shown = 0;
1250 }
1251}
1252
1253
1254static void mouse_move(unsigned int x, unsigned int y)
1255{
1256 mouse_hide();
1257 pointer_x = x;
1258 pointer_y = y;
1259 mouse_show();
1260}
1261
1262
1263static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1264{
1265 bool handled = true;
1266 int retval = EOK;
1267 int i, nvp;
1268 int newval;
1269
1270 switch (IPC_GET_METHOD(*call)) {
1271 case FB_ANIM_CREATE:
1272 nvp = IPC_GET_ARG1(*call);
1273 if (nvp == -1)
1274 nvp = vp;
1275 if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1276 !viewports[nvp].initialized) {
1277 retval = EINVAL;
1278 break;
1279 }
1280 for (i = 0; i < MAX_ANIMATIONS; i++) {
1281 if (!animations[i].initialized)
1282 break;
1283 }
1284 if (i == MAX_ANIMATIONS) {
1285 retval = ELIMIT;
1286 break;
1287 }
1288 animations[i].initialized = 1;
1289 animations[i].animlen = 0;
1290 animations[i].pos = 0;
1291 animations[i].enabled = 0;
1292 animations[i].vp = nvp;
1293 retval = i;
1294 break;
1295 case FB_ANIM_DROP:
1296 i = IPC_GET_ARG1(*call);
1297 if (i >= MAX_ANIMATIONS || i < 0) {
1298 retval = EINVAL;
1299 break;
1300 }
1301 animations[i].initialized = 0;
1302 break;
1303 case FB_ANIM_ADDPIXMAP:
1304 i = IPC_GET_ARG1(*call);
1305 if (i >= MAX_ANIMATIONS || i < 0 ||
1306 !animations[i].initialized) {
1307 retval = EINVAL;
1308 break;
1309 }
1310 if (animations[i].animlen == MAX_ANIM_LEN) {
1311 retval = ELIMIT;
1312 break;
1313 }
1314 newval = IPC_GET_ARG2(*call);
1315 if (newval < 0 || newval > MAX_PIXMAPS ||
1316 !pixmaps[newval].data) {
1317 retval = EINVAL;
1318 break;
1319 }
1320 animations[i].pixmaps[animations[i].animlen++] = newval;
1321 break;
1322 case FB_ANIM_CHGVP:
1323 i = IPC_GET_ARG1(*call);
1324 if (i >= MAX_ANIMATIONS || i < 0) {
1325 retval = EINVAL;
1326 break;
1327 }
1328 nvp = IPC_GET_ARG2(*call);
1329 if (nvp == -1)
1330 nvp = vp;
1331 if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1332 !viewports[nvp].initialized) {
1333 retval = EINVAL;
1334 break;
1335 }
1336 animations[i].vp = nvp;
1337 break;
1338 case FB_ANIM_START:
1339 case FB_ANIM_STOP:
1340 i = IPC_GET_ARG1(*call);
1341 if (i >= MAX_ANIMATIONS || i < 0) {
1342 retval = EINVAL;
1343 break;
1344 }
1345 newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
1346 if (newval ^ animations[i].enabled) {
1347 animations[i].enabled = newval;
1348 anims_enabled += newval ? 1 : -1;
1349 }
1350 break;
1351 default:
1352 handled = 0;
1353 }
1354 if (handled)
1355 ipc_answer_0(callid, retval);
1356 return handled;
1357}
1358
1359
1360/** Handler for messages concerning pixmap handling
1361 *
1362 */
1363static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1364{
1365 bool handled = true;
1366 int retval = EOK;
1367 int i, nvp;
1368
1369 switch (IPC_GET_METHOD(*call)) {
1370 case FB_VP_DRAW_PIXMAP:
1371 nvp = IPC_GET_ARG1(*call);
1372 if (nvp == -1)
1373 nvp = vp;
1374 if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1375 !viewports[nvp].initialized) {
1376 retval = EINVAL;
1377 break;
1378 }
1379 i = IPC_GET_ARG2(*call);
1380 retval = draw_pixmap(nvp, i);
1381 break;
1382 case FB_VP2PIXMAP:
1383 nvp = IPC_GET_ARG1(*call);
1384 if (nvp == -1)
1385 nvp = vp;
1386 if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1387 !viewports[nvp].initialized)
1388 retval = EINVAL;
1389 else
1390 retval = save_vp_to_pixmap(&viewports[nvp]);
1391 break;
1392 case FB_DROP_PIXMAP:
1393 i = IPC_GET_ARG1(*call);
1394 if (i >= MAX_PIXMAPS) {
1395 retval = EINVAL;
1396 break;
1397 }
1398 if (pixmaps[i].data) {
1399 free(pixmaps[i].data);
1400 pixmaps[i].data = NULL;
1401 }
1402 break;
1403 default:
1404 handled = 0;
1405 }
1406
1407 if (handled)
1408 ipc_answer_0(callid, retval);
1409 return handled;
1410
1411}
1412
1413static int rgb_from_style(attr_rgb_t *rgb, int style)
1414{
1415 switch (style) {
1416 case STYLE_NORMAL:
1417 rgb->fg_color = color_table[COLOR_BLACK];
1418 rgb->bg_color = color_table[COLOR_WHITE];
1419 break;
1420 case STYLE_EMPHASIS:
1421 rgb->fg_color = color_table[COLOR_RED];
1422 rgb->bg_color = color_table[COLOR_WHITE];
1423 break;
1424 default:
1425 return EINVAL;
1426 }
1427
1428 return EOK;
1429}
1430
1431static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
1432 ipcarg_t bg_color, ipcarg_t flags)
1433{
1434 fg_color = (fg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1435 bg_color = (bg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1436
1437 rgb->fg_color = color_table[fg_color];
1438 rgb->bg_color = color_table[bg_color];
1439
1440 return EOK;
1441}
1442
1443static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a)
1444{
1445 int rc;
1446
1447 switch (a->t) {
1448 case at_style:
1449 rc = rgb_from_style(rgb, a->a.s.style);
1450 break;
1451 case at_idx:
1452 rc = rgb_from_idx(rgb, a->a.i.fg_color,
1453 a->a.i.bg_color, a->a.i.flags);
1454 break;
1455 case at_rgb:
1456 *rgb = a->a.r;
1457 rc = EOK;
1458 break;
1459 }
1460
1461 return rc;
1462}
1463
1464static int fb_set_style(viewport_t *vport, ipcarg_t style)
1465{
1466 return rgb_from_style(&vport->attr, (int) style);
1467}
1468
1469static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
1470 ipcarg_t bg_color, ipcarg_t flags)
1471{
1472 return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
1473}
1474
1475/** Function for handling connections to FB
1476 *
1477 */
1478static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1479{
1480 unsigned int vp = 0;
1481 viewport_t *vport = &viewports[vp];
1482
1483 if (client_connected) {
1484 ipc_answer_0(iid, ELIMIT);
1485 return;
1486 }
1487
1488 /* Accept connection */
1489 client_connected = true;
1490 ipc_answer_0(iid, EOK);
1491
1492 while (true) {
1493 ipc_callid_t callid;
1494 ipc_call_t call;
1495 int retval;
1496 unsigned int i;
1497 int scroll;
1498 uint8_t glyph;
1499 unsigned int row, col;
1500
1501 if ((vport->cursor_active) || (anims_enabled))
1502 callid = async_get_call_timeout(&call, 250000);
1503 else
1504 callid = async_get_call(&call);
1505
1506 mouse_hide();
1507 if (!callid) {
1508 cursor_blink(vport);
1509 anims_tick();
1510 mouse_show();
1511 continue;
1512 }
1513
1514 if (shm_handle(callid, &call, vp))
1515 continue;
1516
1517 if (pixmap_handle(callid, &call, vp))
1518 continue;
1519
1520 if (anim_handle(callid, &call, vp))
1521 continue;
1522
1523 switch (IPC_GET_METHOD(call)) {
1524 case IPC_M_PHONE_HUNGUP:
1525 client_connected = false;
1526
1527 /* Cleanup other viewports */
1528 for (i = 1; i < MAX_VIEWPORTS; i++)
1529 vport->initialized = false;
1530
1531 /* Exit thread */
1532 return;
1533
1534 case FB_PUTCHAR:
1535 glyph = IPC_GET_ARG1(call);
1536 row = IPC_GET_ARG2(call);
1537 col = IPC_GET_ARG3(call);
1538
1539 if ((col >= vport->cols) || (row >= vport->rows)) {
1540 retval = EINVAL;
1541 break;
1542 }
1543 ipc_answer_0(callid, EOK);
1544
1545 draw_char(vport, glyph, col, row);
1546
1547 /* Message already answered */
1548 continue;
1549 case FB_CLEAR:
1550 vport_clear(vport);
1551 cursor_show(vport);
1552 retval = EOK;
1553 break;
1554 case FB_CURSOR_GOTO:
1555 row = IPC_GET_ARG1(call);
1556 col = IPC_GET_ARG2(call);
1557
1558 if ((col >= vport->cols) || (row >= vport->rows)) {
1559 retval = EINVAL;
1560 break;
1561 }
1562 retval = EOK;
1563
1564 cursor_hide(vport);
1565 vport->cur_col = col;
1566 vport->cur_row = row;
1567 cursor_show(vport);
1568 break;
1569 case FB_CURSOR_VISIBILITY:
1570 cursor_hide(vport);
1571 vport->cursor_active = IPC_GET_ARG1(call);
1572 cursor_show(vport);
1573 retval = EOK;
1574 break;
1575 case FB_GET_CSIZE:
1576 ipc_answer_2(callid, EOK, vport->rows, vport->cols);
1577 continue;
1578 case FB_SCROLL:
1579 scroll = IPC_GET_ARG1(call);
1580 if ((scroll > (int) vport->rows) || (scroll < (-(int) vport->rows))) {
1581 retval = EINVAL;
1582 break;
1583 }
1584 cursor_hide(vport);
1585 vport_scroll(vport, scroll);
1586 cursor_show(vport);
1587 retval = EOK;
1588 break;
1589 case FB_VIEWPORT_SWITCH:
1590 i = IPC_GET_ARG1(call);
1591 if (i >= MAX_VIEWPORTS) {
1592 retval = EINVAL;
1593 break;
1594 }
1595 if (!viewports[i].initialized) {
1596 retval = EADDRNOTAVAIL;
1597 break;
1598 }
1599 cursor_hide(vport);
1600 vp = i;
1601 vport = &viewports[vp];
1602 cursor_show(vport);
1603 retval = EOK;
1604 break;
1605 case FB_VIEWPORT_CREATE:
1606 retval = vport_create(IPC_GET_ARG1(call) >> 16,
1607 IPC_GET_ARG1(call) & 0xffff,
1608 IPC_GET_ARG2(call) >> 16,
1609 IPC_GET_ARG2(call) & 0xffff);
1610 break;
1611 case FB_VIEWPORT_DELETE:
1612 i = IPC_GET_ARG1(call);
1613 if (i >= MAX_VIEWPORTS) {
1614 retval = EINVAL;
1615 break;
1616 }
1617 if (!viewports[i].initialized) {
1618 retval = EADDRNOTAVAIL;
1619 break;
1620 }
1621 viewports[i].initialized = false;
1622 if (viewports[i].glyphs)
1623 free(viewports[i].glyphs);
1624 if (viewports[i].bgpixel)
1625 free(viewports[i].bgpixel);
1626 if (viewports[i].backbuf)
1627 free(viewports[i].backbuf);
1628 retval = EOK;
1629 break;
1630 case FB_SET_STYLE:
1631 retval = fb_set_style(vport, IPC_GET_ARG1(call));
1632 break;
1633 case FB_SET_COLOR:
1634 retval = fb_set_color(vport, IPC_GET_ARG1(call),
1635 IPC_GET_ARG2(call), IPC_GET_ARG3(call));
1636 break;
1637 case FB_SET_RGB_COLOR:
1638 vport->attr.fg_color = IPC_GET_ARG1(call);
1639 vport->attr.bg_color = IPC_GET_ARG2(call);
1640 retval = EOK;
1641 break;
1642 case FB_GET_RESOLUTION:
1643 ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1644 continue;
1645 case FB_POINTER_MOVE:
1646 pointer_enabled = true;
1647 mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
1648 retval = EOK;
1649 break;
1650 default:
1651 retval = ENOENT;
1652 }
1653 ipc_answer_0(callid, retval);
1654 }
1655}
1656
1657/** Initialization of framebuffer
1658 *
1659 */
1660int fb_init(void)
1661{
1662 async_set_client_connection(fb_client_connection);
1663
1664 void *fb_ph_addr = (void *) sysinfo_value("fb.address.physical");
1665 unsigned int fb_offset = sysinfo_value("fb.offset");
1666 unsigned int fb_width = sysinfo_value("fb.width");
1667 unsigned int fb_height = sysinfo_value("fb.height");
1668 unsigned int fb_scanline = sysinfo_value("fb.scanline");
1669 unsigned int fb_visual = sysinfo_value("fb.visual");
1670
1671 unsigned int fbsize = fb_scanline * fb_height;
1672 void *fb_addr = as_get_mappable_page(fbsize);
1673
1674 if (physmem_map(fb_ph_addr + fb_offset, fb_addr,
1675 ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE) != 0)
1676 return -1;
1677
1678 if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1679 return 0;
1680
1681 return -1;
1682}
1683
1684/**
1685 * @}
1686 */
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