source: mainline/uspace/srv/fb/fb.c@ 5462a30

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 5462a30 was 50cfa6c, checked in by Jiri Svoboda <jirik.svoboda@…>, 16 years ago

Method for getting console color capabilities. Use to fix invisible tetris pieces.
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File size: 40.7 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 <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
61#include "font-8x16.h"
62#include "fb.h"
63#include "main.h"
64#include "../console/screenbuffer.h"
65#include "ppm.h"
66
67#include "pointer.xbm"
68#include "pointer_mask.xbm"
69
70#define DEFAULT_BGCOLOR 0xf0f0f0
71#define DEFAULT_FGCOLOR 0x000000
72
73#define GLYPH_UNAVAIL '?'
74
75#define MAX_ANIM_LEN 8
76#define MAX_ANIMATIONS 4
77#define MAX_PIXMAPS 256 /**< Maximum number of saved pixmaps */
78#define MAX_VIEWPORTS 128 /**< Viewport is a rectangular area on the screen */
79
80/** Function to render a pixel from a RGB value. */
81typedef void (*rgb_conv_t)(void *, uint32_t);
82
83/** Function to render a bit mask. */
84typedef void (*mask_conv_t)(void *, bool);
85
86/** Function to draw a glyph. */
87typedef void (*dg_t)(unsigned int x, unsigned int y, bool cursor,
88 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
89
90struct {
91 uint8_t *fb_addr;
92
93 unsigned int xres;
94 unsigned int yres;
95
96 unsigned int scanline;
97 unsigned int glyphscanline;
98
99 unsigned int pixelbytes;
100 unsigned int glyphbytes;
101
102 /** Pre-rendered mask for rendering glyphs. Specific for the visual. */
103 uint8_t *glyphs;
104
105 rgb_conv_t rgb_conv;
106 mask_conv_t mask_conv;
107} screen;
108
109/** Backbuffer character cell. */
110typedef struct {
111 uint32_t glyph;
112 uint32_t fg_color;
113 uint32_t bg_color;
114} bb_cell_t;
115
116typedef struct {
117 bool initialized;
118 unsigned int x;
119 unsigned int y;
120 unsigned int width;
121 unsigned int height;
122
123 /* Text support in window */
124 unsigned int cols;
125 unsigned int rows;
126
127 /*
128 * Style and glyphs for text printing
129 */
130
131 /** Current attributes. */
132 attr_rgb_t attr;
133
134 uint8_t *bgpixel;
135
136 /**
137 * Glyph drawing function for this viewport. Different viewports
138 * might use different drawing functions depending on whether their
139 * scanlines are aligned on a word boundary.
140 */
141 dg_t dglyph;
142
143 /* Auto-cursor position */
144 bool cursor_active;
145 unsigned int cur_col;
146 unsigned int cur_row;
147 bool cursor_shown;
148
149 /* Back buffer */
150 bb_cell_t *backbuf;
151 unsigned int bbsize;
152} viewport_t;
153
154typedef struct {
155 bool initialized;
156 bool enabled;
157 unsigned int vp;
158
159 unsigned int pos;
160 unsigned int animlen;
161 unsigned int pixmaps[MAX_ANIM_LEN];
162} animation_t;
163
164static animation_t animations[MAX_ANIMATIONS];
165static bool anims_enabled;
166
167typedef struct {
168 unsigned int width;
169 unsigned int height;
170 uint8_t *data;
171} pixmap_t;
172
173static pixmap_t pixmaps[MAX_PIXMAPS];
174static viewport_t viewports[128];
175
176static bool client_connected = false; /**< Allow only 1 connection */
177
178static uint32_t color_table[16] = {
179 [COLOR_BLACK] = 0x000000,
180 [COLOR_BLUE] = 0x0000f0,
181 [COLOR_GREEN] = 0x00f000,
182 [COLOR_CYAN] = 0x00f0f0,
183 [COLOR_RED] = 0xf00000,
184 [COLOR_MAGENTA] = 0xf000f0,
185 [COLOR_YELLOW] = 0xf0f000,
186 [COLOR_WHITE] = 0xf0f0f0,
187
188 [8 + COLOR_BLACK] = 0x000000,
189 [8 + COLOR_BLUE] = 0x0000ff,
190 [8 + COLOR_GREEN] = 0x00ff00,
191 [8 + COLOR_CYAN] = 0x00ffff,
192 [8 + COLOR_RED] = 0xff0000,
193 [8 + COLOR_MAGENTA] = 0xff00ff,
194 [8 + COLOR_YELLOW] = 0xffff00,
195 [8 + COLOR_WHITE] = 0xffffff,
196};
197
198static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a);
199static int rgb_from_style(attr_rgb_t *rgb, int style);
200static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
201 ipcarg_t bg_color, ipcarg_t flags);
202
203static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
204 ipcarg_t bg_color, ipcarg_t attr);
205
206static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
207 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
208static void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
209 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
210
211static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
212 unsigned int row);
213
214
215#define RED(x, bits) ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))
216#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
217#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
218
219#define COL2X(col) ((col) * FONT_WIDTH)
220#define ROW2Y(row) ((row) * FONT_SCANLINES)
221
222#define X2COL(x) ((x) / FONT_WIDTH)
223#define Y2ROW(y) ((y) / FONT_SCANLINES)
224
225#define FB_POS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
226#define BB_POS(vport, col, row) ((row) * vport->cols + (col))
227#define GLYPH_POS(glyph, y, cursor) (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
228
229
230/** ARGB 8:8:8:8 conversion
231 *
232 */
233static void rgb_0888(void *dst, uint32_t rgb)
234{
235 *((uint32_t *) dst) = rgb & 0x00ffffff;
236}
237
238static void mask_0888(void *dst, bool mask)
239{
240 *((uint32_t *) dst) = (mask ? 0x00ffffff : 0);
241}
242
243
244/** ABGR 8:8:8:8 conversion
245 *
246 */
247static void bgr_0888(void *dst, uint32_t rgb)
248{
249 *((uint32_t *) dst)
250 = (BLUE(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | RED(rgb, 8);
251}
252
253
254/** RGB 8:8:8 conversion
255 *
256 */
257static void rgb_888(void *dst, uint32_t rgb)
258{
259 ((uint8_t *) dst)[0] = BLUE(rgb, 8);
260 ((uint8_t *) dst)[1] = GREEN(rgb, 8);
261 ((uint8_t *) dst)[2] = RED(rgb, 8);
262}
263
264static void mask_888(void *dst, bool mask)
265{
266 if (mask) {
267 ((uint8_t *) dst)[0] = 0xff;
268 ((uint8_t *) dst)[1] = 0xff;
269 ((uint8_t *) dst)[2] = 0xff;
270 } else {
271 ((uint8_t *) dst)[0] = 0;
272 ((uint8_t *) dst)[1] = 0;
273 ((uint8_t *) dst)[2] = 0;
274 }
275}
276
277
278/** BGR 8:8:8 conversion
279 *
280 */
281static void bgr_888(void *dst, uint32_t rgb)
282{
283 ((uint8_t *) dst)[0] = RED(rgb, 8);
284 ((uint8_t *) dst)[1] = GREEN(rgb, 8);
285 ((uint8_t *) dst)[2] = BLUE(rgb, 8);
286}
287
288
289/** RGB 5:5:5 conversion
290 *
291 */
292static void rgb_555(void *dst, uint32_t rgb)
293{
294 *((uint16_t *) dst)
295 = (RED(rgb, 5) << 10) | (GREEN(rgb, 5) << 5) | BLUE(rgb, 5);
296}
297
298static void mask_555(void *dst, bool mask)
299{
300 *((uint16_t *) dst) = (mask ? 0x7fff : 0);
301}
302
303
304/** RGB 5:6:5 conversion
305 *
306 */
307static void rgb_565(void *dst, uint32_t rgb)
308{
309 *((uint16_t *) dst)
310 = (RED(rgb, 5) << 11) | (GREEN(rgb, 6) << 5) | BLUE(rgb, 5);
311}
312
313static void mask_565(void *dst, bool mask)
314{
315 *((uint16_t *) dst) = (mask ? 0xffff : 0);
316}
317
318
319/** RGB 3:2:3
320 *
321 */
322static void rgb_323(void *dst, uint32_t rgb)
323{
324 *((uint8_t *) dst)
325 = ~((RED(rgb, 3) << 5) | (GREEN(rgb, 2) << 3) | BLUE(rgb, 3));
326}
327
328static void mask_323(void *dst, bool mask)
329{
330 *((uint8_t *) dst) = (mask ? 0xff : 0);
331}
332
333/** Draw a filled rectangle.
334 *
335 * @note Need real implementation that does not access VRAM twice.
336 *
337 */
338static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
339 unsigned int y1, uint32_t color)
340{
341 unsigned int x;
342 unsigned int y;
343 unsigned int copy_bytes;
344
345 uint8_t *sp;
346 uint8_t *dp;
347 uint8_t cbuf[4];
348
349 if ((y0 >= y1) || (x0 >= x1))
350 return;
351
352 screen.rgb_conv(cbuf, color);
353
354 sp = &screen.fb_addr[FB_POS(x0, y0)];
355 dp = sp;
356
357 /* Draw the first line. */
358 for (x = x0; x < x1; x++) {
359 memcpy(dp, cbuf, screen.pixelbytes);
360 dp += screen.pixelbytes;
361 }
362
363 dp = sp + screen.scanline;
364 copy_bytes = (x1 - x0) * screen.pixelbytes;
365
366 /* Draw the remaining lines by copying. */
367 for (y = y0 + 1; y < y1; y++) {
368 memcpy(dp, sp, copy_bytes);
369 dp += screen.scanline;
370 }
371}
372
373/** Redraw viewport.
374 *
375 * @param vport Viewport to redraw
376 *
377 */
378static void vport_redraw(viewport_t *vport)
379{
380 unsigned int col;
381 unsigned int row;
382
383 for (row = 0; row < vport->rows; row++) {
384 for (col = 0; col < vport->cols; col++) {
385 draw_vp_glyph(vport, false, col, row);
386 }
387 }
388
389 if (COL2X(vport->cols) < vport->width) {
390 draw_filled_rect(
391 vport->x + COL2X(vport->cols), vport->y,
392 vport->x + vport->width, vport->y + vport->height,
393 vport->attr.bg_color);
394 }
395
396 if (ROW2Y(vport->rows) < vport->height) {
397 draw_filled_rect(
398 vport->x, vport->y + ROW2Y(vport->rows),
399 vport->x + vport->width, vport->y + vport->height,
400 vport->attr.bg_color);
401 }
402}
403
404static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
405 uint32_t bg_color)
406{
407 size_t i;
408
409 for (i = 0; i < len; i++) {
410 backbuf[i].glyph = 0;
411 backbuf[i].fg_color = fg_color;
412 backbuf[i].bg_color = bg_color;
413 }
414}
415
416/** Clear viewport.
417 *
418 * @param vport Viewport to clear
419 *
420 */
421static void vport_clear(viewport_t *vport)
422{
423 backbuf_clear(vport->backbuf, vport->cols * vport->rows,
424 vport->attr.fg_color, vport->attr.bg_color);
425 vport_redraw(vport);
426}
427
428/** Scroll viewport by the specified number of lines.
429 *
430 * @param vport Viewport to scroll
431 * @param lines Number of lines to scroll
432 *
433 */
434static void vport_scroll(viewport_t *vport, int lines)
435{
436 unsigned int col;
437 unsigned int row;
438 unsigned int x;
439 unsigned int y;
440 uint32_t glyph;
441 uint32_t fg_color;
442 uint32_t bg_color;
443 bb_cell_t *bbp;
444 bb_cell_t *xbp;
445
446 /*
447 * Redraw.
448 */
449
450 y = vport->y;
451 for (row = 0; row < vport->rows; row++) {
452 x = vport->x;
453 for (col = 0; col < vport->cols; col++) {
454 if (((int) row + lines >= 0) &&
455 ((int) row + lines < (int) vport->rows)) {
456 xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
457 bbp = &vport->backbuf[BB_POS(vport, col, row)];
458
459 glyph = xbp->glyph;
460 fg_color = xbp->fg_color;
461 bg_color = xbp->bg_color;
462
463 if ((bbp->glyph == glyph)
464 && (bbp->fg_color == xbp->fg_color)
465 && (bbp->bg_color == xbp->bg_color)) {
466 x += FONT_WIDTH;
467 continue;
468 }
469 } else {
470 glyph = 0;
471 fg_color = vport->attr.fg_color;
472 bg_color = vport->attr.bg_color;
473 }
474
475 (*vport->dglyph)(x, y, false, screen.glyphs, glyph,
476 fg_color, bg_color);
477 x += FONT_WIDTH;
478 }
479 y += FONT_SCANLINES;
480 }
481
482 /*
483 * Scroll backbuffer.
484 */
485
486 if (lines > 0) {
487 memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
488 vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
489 backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
490 vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
491 } else {
492 memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
493 vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
494 backbuf_clear(vport->backbuf, - vport->cols * lines,
495 vport->attr.fg_color, vport->attr.bg_color);
496 }
497}
498
499/** Render glyphs
500 *
501 * Convert glyphs from device independent font
502 * description to current visual representation.
503 *
504 */
505static void render_glyphs(void)
506{
507 unsigned int glyph;
508
509 for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
510 unsigned int y;
511
512 for (y = 0; y < FONT_SCANLINES; y++) {
513 unsigned int x;
514
515 for (x = 0; x < FONT_WIDTH; x++) {
516 screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
517 (fb_font[glyph][y] & (1 << (7 - x))) ? true : false);
518
519 screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
520 (fb_font[glyph][y] & (1 << (7 - x))) ? false : true);
521 }
522 }
523 }
524}
525
526/** Create new viewport
527 *
528 * @param x Origin of the viewport (x).
529 * @param y Origin of the viewport (y).
530 * @param width Width of the viewport.
531 * @param height Height of the viewport.
532 *
533 * @return New viewport number.
534 *
535 */
536static int vport_create(unsigned int x, unsigned int y,
537 unsigned int width, unsigned int height)
538{
539 unsigned int i;
540
541 for (i = 0; i < MAX_VIEWPORTS; i++) {
542 if (!viewports[i].initialized)
543 break;
544 }
545
546 if (i == MAX_VIEWPORTS)
547 return ELIMIT;
548
549 unsigned int cols = width / FONT_WIDTH;
550 unsigned int rows = height / FONT_SCANLINES;
551 unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
552 unsigned int word_size = sizeof(unsigned long);
553
554 bb_cell_t *backbuf = (bb_cell_t *) malloc(bbsize);
555 if (!backbuf)
556 return ENOMEM;
557
558 uint8_t *bgpixel = (uint8_t *) malloc(screen.pixelbytes);
559 if (!bgpixel) {
560 free(backbuf);
561 return ENOMEM;
562 }
563
564 backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
565 memset(bgpixel, 0, screen.pixelbytes);
566
567 viewports[i].x = x;
568 viewports[i].y = y;
569 viewports[i].width = width;
570 viewports[i].height = height;
571
572 viewports[i].cols = cols;
573 viewports[i].rows = rows;
574
575 viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
576 viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
577
578 viewports[i].bgpixel = bgpixel;
579
580 /*
581 * Conditions necessary to select aligned version:
582 * - word size is divisible by pixelbytes
583 * - cell scanline size is divisible by word size
584 * - cell scanlines are word-aligned
585 *
586 */
587 if (((word_size % screen.pixelbytes) == 0)
588 && ((FONT_WIDTH * screen.pixelbytes) % word_size == 0)
589 && ((x * screen.pixelbytes) % word_size == 0)
590 && (screen.scanline % word_size == 0)) {
591 viewports[i].dglyph = draw_glyph_aligned;
592 } else {
593 viewports[i].dglyph = draw_glyph_fallback;
594 }
595
596 viewports[i].cur_col = 0;
597 viewports[i].cur_row = 0;
598 viewports[i].cursor_active = false;
599 viewports[i].cursor_shown = false;
600
601 viewports[i].bbsize = bbsize;
602 viewports[i].backbuf = backbuf;
603
604 viewports[i].initialized = true;
605
606 screen.rgb_conv(viewports[i].bgpixel, viewports[i].attr.bg_color);
607
608 return i;
609}
610
611
612/** Initialize framebuffer as a chardev output device
613 *
614 * @param addr Address of the framebuffer
615 * @param xres Screen width in pixels
616 * @param yres Screen height in pixels
617 * @param visual Bits per pixel (8, 16, 24, 32)
618 * @param scan Bytes per one scanline
619 *
620 */
621static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
622 unsigned int scan, unsigned int visual)
623{
624
625
626 switch (visual) {
627 case VISUAL_INDIRECT_8:
628 screen.rgb_conv = rgb_323;
629 screen.mask_conv = mask_323;
630 screen.pixelbytes = 1;
631 break;
632 case VISUAL_RGB_5_5_5:
633 screen.rgb_conv = rgb_555;
634 screen.mask_conv = mask_555;
635 screen.pixelbytes = 2;
636 break;
637 case VISUAL_RGB_5_6_5:
638 screen.rgb_conv = rgb_565;
639 screen.mask_conv = mask_565;
640 screen.pixelbytes = 2;
641 break;
642 case VISUAL_RGB_8_8_8:
643 screen.rgb_conv = rgb_888;
644 screen.mask_conv = mask_888;
645 screen.pixelbytes = 3;
646 break;
647 case VISUAL_BGR_8_8_8:
648 screen.rgb_conv = bgr_888;
649 screen.mask_conv = mask_888;
650 screen.pixelbytes = 3;
651 break;
652 case VISUAL_RGB_8_8_8_0:
653 screen.rgb_conv = rgb_888;
654 screen.mask_conv = mask_888;
655 screen.pixelbytes = 4;
656 break;
657 case VISUAL_RGB_0_8_8_8:
658 screen.rgb_conv = rgb_0888;
659 screen.mask_conv = mask_0888;
660 screen.pixelbytes = 4;
661 break;
662 case VISUAL_BGR_0_8_8_8:
663 screen.rgb_conv = bgr_0888;
664 screen.mask_conv = mask_0888;
665 screen.pixelbytes = 4;
666 break;
667 default:
668 return false;
669 }
670
671 screen.fb_addr = (unsigned char *) addr;
672 screen.xres = xres;
673 screen.yres = yres;
674 screen.scanline = scan;
675
676 screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
677 screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
678
679 size_t glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
680 uint8_t *glyphs = (uint8_t *) malloc(glyphsize);
681 if (!glyphs)
682 return false;
683
684 memset(glyphs, 0, glyphsize);
685 screen.glyphs = glyphs;
686
687 render_glyphs();
688
689 /* Create first viewport */
690 vport_create(0, 0, xres, yres);
691
692 return true;
693}
694
695
696/** Draw a glyph, takes advantage of alignment.
697 *
698 * This version can only be used if the following conditions are met:
699 *
700 * - word size is divisible by pixelbytes
701 * - cell scanline size is divisible by word size
702 * - cell scanlines are word-aligned
703 *
704 * It makes use of the pre-rendered mask to process (possibly) several
705 * pixels at once (word size / pixelbytes pixels at a time are processed)
706 * making it very fast. Most notably this version is not applicable at 24 bits
707 * per pixel.
708 *
709 * @param x x coordinate of top-left corner on screen.
710 * @param y y coordinate of top-left corner on screen.
711 * @param cursor Draw glyph with cursor
712 * @param glyphs Pointer to font bitmap.
713 * @param glyph Code of the glyph to draw.
714 * @param fg_color Foreground color.
715 * @param bg_color Backgroudn color.
716 *
717 */
718static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
719 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
720{
721 unsigned int i;
722 unsigned int yd;
723 unsigned long fg_buf;
724 unsigned long bg_buf;
725 unsigned long mask;
726
727 /*
728 * Prepare a pair of words, one filled with foreground-color
729 * pattern and the other filled with background-color pattern.
730 */
731 for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
732 screen.rgb_conv(&((uint8_t *) &fg_buf)[i * screen.pixelbytes],
733 fg_color);
734 screen.rgb_conv(&((uint8_t *) &bg_buf)[i * screen.pixelbytes],
735 bg_color);
736 }
737
738 /* Pointer to the current position in the mask. */
739 unsigned long *maskp = (unsigned long *) &glyphs[GLYPH_POS(glyph, 0, cursor)];
740
741 /* Pointer to the current position on the screen. */
742 unsigned long *dp = (unsigned long *) &screen.fb_addr[FB_POS(x, y)];
743
744 /* Width of the character cell in words. */
745 unsigned int ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
746
747 /* Offset to add when moving to another screen scanline. */
748 unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
749
750 for (yd = 0; yd < FONT_SCANLINES; yd++) {
751 /*
752 * Now process the cell scanline, combining foreground
753 * and background color patters using the pre-rendered mask.
754 */
755 for (i = 0; i < ww; i++) {
756 mask = *maskp++;
757 *dp++ = (fg_buf & mask) | (bg_buf & ~mask);
758 }
759
760 /* Move to the beginning of the next scanline of the cell. */
761 dp = (unsigned long *) ((uint8_t *) dp + d_add);
762 }
763}
764
765/** Draw a glyph, fallback version.
766 *
767 * This version does not make use of the pre-rendered mask, it uses
768 * the font bitmap directly. It works always, but it is slower.
769 *
770 * @param x x coordinate of top-left corner on screen.
771 * @param y y coordinate of top-left corner on screen.
772 * @param cursor Draw glyph with cursor
773 * @param glyphs Pointer to font bitmap.
774 * @param glyph Code of the glyph to draw.
775 * @param fg_color Foreground color.
776 * @param bg_color Backgroudn color.
777 *
778 */
779void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
780 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
781{
782 unsigned int i;
783 unsigned int j;
784 unsigned int yd;
785 uint8_t fg_buf[4];
786 uint8_t bg_buf[4];
787 uint8_t *sp;
788 uint8_t b;
789
790 /* Pre-render 1x the foreground and background color pixels. */
791 if (cursor) {
792 screen.rgb_conv(fg_buf, bg_color);
793 screen.rgb_conv(bg_buf, fg_color);
794 } else {
795 screen.rgb_conv(fg_buf, fg_color);
796 screen.rgb_conv(bg_buf, bg_color);
797 }
798
799 /* Pointer to the current position on the screen. */
800 uint8_t *dp = (uint8_t *) &screen.fb_addr[FB_POS(x, y)];
801
802 /* Offset to add when moving to another screen scanline. */
803 unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
804
805 for (yd = 0; yd < FONT_SCANLINES; yd++) {
806 /* Byte containing bits of the glyph scanline. */
807 b = fb_font[glyph][yd];
808
809 for (i = 0; i < FONT_WIDTH; i++) {
810 /* Choose color based on the current bit. */
811 sp = (b & 0x80) ? fg_buf : bg_buf;
812
813 /* Copy the pixel. */
814 for (j = 0; j < screen.pixelbytes; j++) {
815 *dp++ = *sp++;
816 }
817
818 /* Move to the next bit. */
819 b = b << 1;
820 }
821
822 /* Move to the beginning of the next scanline of the cell. */
823 dp += d_add;
824 }
825}
826
827/** Draw glyph at specified position in viewport.
828 *
829 * @param vport Viewport identification
830 * @param cursor Draw glyph with cursor
831 * @param col Screen position relative to viewport
832 * @param row Screen position relative to viewport
833 *
834 */
835static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
836 unsigned int row)
837{
838 unsigned int x = vport->x + COL2X(col);
839 unsigned int y = vport->y + ROW2Y(row);
840
841 uint32_t glyph = vport->backbuf[BB_POS(vport, col, row)].glyph;
842 uint32_t fg_color = vport->backbuf[BB_POS(vport, col, row)].fg_color;
843 uint32_t bg_color = vport->backbuf[BB_POS(vport, col, row)].bg_color;
844
845 (*vport->dglyph)(x, y, cursor, screen.glyphs, glyph,
846 fg_color, bg_color);
847}
848
849/** Hide cursor if it is shown
850 *
851 */
852static void cursor_hide(viewport_t *vport)
853{
854 if ((vport->cursor_active) && (vport->cursor_shown)) {
855 draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
856 vport->cursor_shown = false;
857 }
858}
859
860
861/** Show cursor if cursor showing is enabled
862 *
863 */
864static void cursor_show(viewport_t *vport)
865{
866 /* Do not check for cursor_shown */
867 if (vport->cursor_active) {
868 draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
869 vport->cursor_shown = true;
870 }
871}
872
873
874/** Invert cursor, if it is enabled
875 *
876 */
877static void cursor_blink(viewport_t *vport)
878{
879 if (vport->cursor_shown)
880 cursor_hide(vport);
881 else
882 cursor_show(vport);
883}
884
885
886/** Draw character at given position relative to viewport
887 *
888 * @param vport Viewport identification
889 * @param c Character to draw
890 * @param col Screen position relative to viewport
891 * @param row Screen position relative to viewport
892 *
893 */
894static void draw_char(viewport_t *vport, wchar_t c, unsigned int col, unsigned int row)
895{
896 bb_cell_t *bbp;
897
898 /* Do not hide cursor if we are going to overwrite it */
899 if ((vport->cursor_active) && (vport->cursor_shown) &&
900 ((vport->cur_col != col) || (vport->cur_row != row)))
901 cursor_hide(vport);
902
903 bbp = &vport->backbuf[BB_POS(vport, col, row)];
904 bbp->glyph = fb_font_glyph(c);
905 bbp->fg_color = vport->attr.fg_color;
906 bbp->bg_color = vport->attr.bg_color;
907
908 draw_vp_glyph(vport, false, col, row);
909
910 vport->cur_col = col;
911 vport->cur_row = row;
912
913 vport->cur_col++;
914 if (vport->cur_col >= vport->cols) {
915 vport->cur_col = 0;
916 vport->cur_row++;
917 if (vport->cur_row >= vport->rows)
918 vport->cur_row--;
919 }
920
921 cursor_show(vport);
922}
923
924/** Draw text data to viewport.
925 *
926 * @param vport Viewport id
927 * @param data Text data.
928 * @param x Leftmost column of the area.
929 * @param y Topmost row of the area.
930 * @param w Number of rows.
931 * @param h Number of columns.
932 *
933 */
934static void draw_text_data(viewport_t *vport, keyfield_t *data, unsigned int x,
935 unsigned int y, unsigned int w, unsigned int h)
936{
937 unsigned int i;
938 unsigned int j;
939 bb_cell_t *bbp;
940 attrs_t *a;
941 attr_rgb_t rgb;
942
943 for (j = 0; j < h; j++) {
944 for (i = 0; i < w; i++) {
945 unsigned int col = x + i;
946 unsigned int row = y + j;
947
948 bbp = &vport->backbuf[BB_POS(vport, col, row)];
949
950 a = &data[j * w + i].attrs;
951 rgb_from_attr(&rgb, a);
952
953 bbp->glyph = fb_font_glyph(data[j * w + i].character);
954 bbp->fg_color = rgb.fg_color;
955 bbp->bg_color = rgb.bg_color;
956
957 draw_vp_glyph(vport, false, col, row);
958 }
959 }
960 cursor_show(vport);
961}
962
963
964static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
965{
966 int pm = *((int *) data);
967 pixmap_t *pmap = &pixmaps[pm];
968 unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
969
970 screen.rgb_conv(&pmap->data[pos], color);
971}
972
973
974static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
975{
976 viewport_t *vport = (viewport_t *) data;
977 unsigned int dx = vport->x + x;
978 unsigned int dy = vport->y + y;
979
980 screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
981}
982
983
984/** Return first free pixmap
985 *
986 */
987static int find_free_pixmap(void)
988{
989 unsigned int i;
990
991 for (i = 0; i < MAX_PIXMAPS; i++)
992 if (!pixmaps[i].data)
993 return i;
994
995 return -1;
996}
997
998
999/** Create a new pixmap and return appropriate ID
1000 *
1001 */
1002static int shm2pixmap(unsigned char *shm, size_t size)
1003{
1004 int pm;
1005 pixmap_t *pmap;
1006
1007 pm = find_free_pixmap();
1008 if (pm == -1)
1009 return ELIMIT;
1010
1011 pmap = &pixmaps[pm];
1012
1013 if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
1014 return EINVAL;
1015
1016 pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
1017 if (!pmap->data)
1018 return ENOMEM;
1019
1020 ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
1021
1022 return pm;
1023}
1024
1025
1026/** Handle shared memory communication calls
1027 *
1028 * Protocol for drawing pixmaps:
1029 * - FB_PREPARE_SHM(client shm identification)
1030 * - IPC_M_AS_AREA_SEND
1031 * - FB_DRAW_PPM(startx, starty)
1032 * - FB_DROP_SHM
1033 *
1034 * Protocol for text drawing
1035 * - IPC_M_AS_AREA_SEND
1036 * - FB_DRAW_TEXT_DATA
1037 *
1038 * @param callid Callid of the current call
1039 * @param call Current call data
1040 * @param vp Active viewport
1041 *
1042 * @return false if the call was not handled byt this function, true otherwise
1043 *
1044 * Note: this function is not thread-safe, you would have
1045 * to redefine static variables with fibril_local.
1046 *
1047 */
1048static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1049{
1050 static keyfield_t *interbuffer = NULL;
1051 static size_t intersize = 0;
1052
1053 static unsigned char *shm = NULL;
1054 static ipcarg_t shm_id = 0;
1055 static size_t shm_size;
1056
1057 bool handled = true;
1058 int retval = EOK;
1059 viewport_t *vport = &viewports[vp];
1060 unsigned int x;
1061 unsigned int y;
1062 unsigned int w;
1063 unsigned int h;
1064
1065 switch (IPC_GET_METHOD(*call)) {
1066 case IPC_M_SHARE_OUT:
1067 /* We accept one area for data interchange */
1068 if (IPC_GET_ARG1(*call) == shm_id) {
1069 void *dest = as_get_mappable_page(IPC_GET_ARG2(*call));
1070 shm_size = IPC_GET_ARG2(*call);
1071 if (ipc_answer_1(callid, EOK, (sysarg_t) dest)) {
1072 shm_id = 0;
1073 return false;
1074 }
1075 shm = dest;
1076
1077 if (shm[0] != 'P')
1078 return false;
1079
1080 return true;
1081 } else {
1082 intersize = IPC_GET_ARG2(*call);
1083 receive_comm_area(callid, call, (void *) &interbuffer);
1084 }
1085 return true;
1086 case FB_PREPARE_SHM:
1087 if (shm_id)
1088 retval = EBUSY;
1089 else
1090 shm_id = IPC_GET_ARG1(*call);
1091 break;
1092
1093 case FB_DROP_SHM:
1094 if (shm) {
1095 as_area_destroy(shm);
1096 shm = NULL;
1097 }
1098 shm_id = 0;
1099 break;
1100
1101 case FB_SHM2PIXMAP:
1102 if (!shm) {
1103 retval = EINVAL;
1104 break;
1105 }
1106 retval = shm2pixmap(shm, shm_size);
1107 break;
1108 case FB_DRAW_PPM:
1109 if (!shm) {
1110 retval = EINVAL;
1111 break;
1112 }
1113 x = IPC_GET_ARG1(*call);
1114 y = IPC_GET_ARG2(*call);
1115
1116 if ((x > vport->width) || (y > vport->height)) {
1117 retval = EINVAL;
1118 break;
1119 }
1120
1121 ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
1122 IPC_GET_ARG2(*call), vport->width - x, vport->height - y, putpixel, (void *) vport);
1123 break;
1124 case FB_DRAW_TEXT_DATA:
1125 x = IPC_GET_ARG1(*call);
1126 y = IPC_GET_ARG2(*call);
1127 w = IPC_GET_ARG3(*call);
1128 h = IPC_GET_ARG4(*call);
1129 if (!interbuffer) {
1130 retval = EINVAL;
1131 break;
1132 }
1133 if (x + w > vport->cols || y + h > vport->rows) {
1134 retval = EINVAL;
1135 break;
1136 }
1137 if (intersize < w * h * sizeof(*interbuffer)) {
1138 retval = EINVAL;
1139 break;
1140 }
1141 draw_text_data(vport, interbuffer, x, y, w, h);
1142 break;
1143 default:
1144 handled = false;
1145 }
1146
1147 if (handled)
1148 ipc_answer_0(callid, retval);
1149 return handled;
1150}
1151
1152
1153static void copy_vp_to_pixmap(viewport_t *vport, pixmap_t *pmap)
1154{
1155 unsigned int width = vport->width;
1156 unsigned int height = vport->height;
1157
1158 if (width + vport->x > screen.xres)
1159 width = screen.xres - vport->x;
1160 if (height + vport->y > screen.yres)
1161 height = screen.yres - vport->y;
1162
1163 unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1164 unsigned int realheight = pmap->height <= height ? pmap->height : height;
1165
1166 unsigned int srcrowsize = vport->width * screen.pixelbytes;
1167 unsigned int realrowsize = realwidth * screen.pixelbytes;
1168
1169 unsigned int y;
1170 for (y = 0; y < realheight; y++) {
1171 unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1172 memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1173 }
1174}
1175
1176
1177/** Save viewport to pixmap
1178 *
1179 */
1180static int save_vp_to_pixmap(viewport_t *vport)
1181{
1182 int pm;
1183 pixmap_t *pmap;
1184
1185 pm = find_free_pixmap();
1186 if (pm == -1)
1187 return ELIMIT;
1188
1189 pmap = &pixmaps[pm];
1190 pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
1191 if (!pmap->data)
1192 return ENOMEM;
1193
1194 pmap->width = vport->width;
1195 pmap->height = vport->height;
1196
1197 copy_vp_to_pixmap(vport, pmap);
1198
1199 return pm;
1200}
1201
1202
1203/** Draw pixmap on screen
1204 *
1205 * @param vp Viewport to draw on
1206 * @param pm Pixmap identifier
1207 *
1208 */
1209static int draw_pixmap(int vp, int pm)
1210{
1211 pixmap_t *pmap = &pixmaps[pm];
1212 viewport_t *vport = &viewports[vp];
1213
1214 unsigned int width = vport->width;
1215 unsigned int height = vport->height;
1216
1217 if (width + vport->x > screen.xres)
1218 width = screen.xres - vport->x;
1219 if (height + vport->y > screen.yres)
1220 height = screen.yres - vport->y;
1221
1222 if (!pmap->data)
1223 return EINVAL;
1224
1225 unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1226 unsigned int realheight = pmap->height <= height ? pmap->height : height;
1227
1228 unsigned int srcrowsize = vport->width * screen.pixelbytes;
1229 unsigned int realrowsize = realwidth * screen.pixelbytes;
1230
1231 unsigned int y;
1232 for (y = 0; y < realheight; y++) {
1233 unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1234 memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1235 }
1236
1237 return EOK;
1238}
1239
1240
1241/** Tick animation one step forward
1242 *
1243 */
1244static void anims_tick(void)
1245{
1246 unsigned int i;
1247 static int counts = 0;
1248
1249 /* Limit redrawing */
1250 counts = (counts + 1) % 8;
1251 if (counts)
1252 return;
1253
1254 for (i = 0; i < MAX_ANIMATIONS; i++) {
1255 if ((!animations[i].animlen) || (!animations[i].initialized) ||
1256 (!animations[i].enabled))
1257 continue;
1258
1259 draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
1260 animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1261 }
1262}
1263
1264
1265static unsigned int pointer_x;
1266static unsigned int pointer_y;
1267static bool pointer_shown, pointer_enabled;
1268static int pointer_vport = -1;
1269static int pointer_pixmap = -1;
1270
1271
1272static void mouse_show(void)
1273{
1274 int i, j;
1275 int visibility;
1276 int color;
1277 int bytepos;
1278
1279 if ((pointer_shown) || (!pointer_enabled))
1280 return;
1281
1282 /* Save image under the pointer. */
1283 if (pointer_vport == -1) {
1284 pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1285 if (pointer_vport < 0)
1286 return;
1287 } else {
1288 viewports[pointer_vport].x = pointer_x;
1289 viewports[pointer_vport].y = pointer_y;
1290 }
1291
1292 if (pointer_pixmap == -1)
1293 pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
1294 else
1295 copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
1296
1297 /* Draw mouse pointer. */
1298 for (i = 0; i < pointer_height; i++)
1299 for (j = 0; j < pointer_width; j++) {
1300 bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
1301 visibility = pointer_mask_bits[bytepos] &
1302 (1 << (j % 8));
1303 if (visibility) {
1304 color = pointer_bits[bytepos] &
1305 (1 << (j % 8)) ? 0 : 0xffffff;
1306 if (pointer_x + j < screen.xres && pointer_y +
1307 i < screen.yres)
1308 putpixel(&viewports[0], pointer_x + j,
1309 pointer_y + i, color);
1310 }
1311 }
1312 pointer_shown = 1;
1313}
1314
1315
1316static void mouse_hide(void)
1317{
1318 /* Restore image under the pointer. */
1319 if (pointer_shown) {
1320 draw_pixmap(pointer_vport, pointer_pixmap);
1321 pointer_shown = 0;
1322 }
1323}
1324
1325
1326static void mouse_move(unsigned int x, unsigned int y)
1327{
1328 mouse_hide();
1329 pointer_x = x;
1330 pointer_y = y;
1331 mouse_show();
1332}
1333
1334
1335static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1336{
1337 bool handled = true;
1338 int retval = EOK;
1339 int i, nvp;
1340 int newval;
1341
1342 switch (IPC_GET_METHOD(*call)) {
1343 case FB_ANIM_CREATE:
1344 nvp = IPC_GET_ARG1(*call);
1345 if (nvp == -1)
1346 nvp = vp;
1347 if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1348 !viewports[nvp].initialized) {
1349 retval = EINVAL;
1350 break;
1351 }
1352 for (i = 0; i < MAX_ANIMATIONS; i++) {
1353 if (!animations[i].initialized)
1354 break;
1355 }
1356 if (i == MAX_ANIMATIONS) {
1357 retval = ELIMIT;
1358 break;
1359 }
1360 animations[i].initialized = 1;
1361 animations[i].animlen = 0;
1362 animations[i].pos = 0;
1363 animations[i].enabled = 0;
1364 animations[i].vp = nvp;
1365 retval = i;
1366 break;
1367 case FB_ANIM_DROP:
1368 i = IPC_GET_ARG1(*call);
1369 if (i >= MAX_ANIMATIONS || i < 0) {
1370 retval = EINVAL;
1371 break;
1372 }
1373 animations[i].initialized = 0;
1374 break;
1375 case FB_ANIM_ADDPIXMAP:
1376 i = IPC_GET_ARG1(*call);
1377 if (i >= MAX_ANIMATIONS || i < 0 ||
1378 !animations[i].initialized) {
1379 retval = EINVAL;
1380 break;
1381 }
1382 if (animations[i].animlen == MAX_ANIM_LEN) {
1383 retval = ELIMIT;
1384 break;
1385 }
1386 newval = IPC_GET_ARG2(*call);
1387 if (newval < 0 || newval > MAX_PIXMAPS ||
1388 !pixmaps[newval].data) {
1389 retval = EINVAL;
1390 break;
1391 }
1392 animations[i].pixmaps[animations[i].animlen++] = newval;
1393 break;
1394 case FB_ANIM_CHGVP:
1395 i = IPC_GET_ARG1(*call);
1396 if (i >= MAX_ANIMATIONS || i < 0) {
1397 retval = EINVAL;
1398 break;
1399 }
1400 nvp = IPC_GET_ARG2(*call);
1401 if (nvp == -1)
1402 nvp = vp;
1403 if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1404 !viewports[nvp].initialized) {
1405 retval = EINVAL;
1406 break;
1407 }
1408 animations[i].vp = nvp;
1409 break;
1410 case FB_ANIM_START:
1411 case FB_ANIM_STOP:
1412 i = IPC_GET_ARG1(*call);
1413 if (i >= MAX_ANIMATIONS || i < 0) {
1414 retval = EINVAL;
1415 break;
1416 }
1417 newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
1418 if (newval ^ animations[i].enabled) {
1419 animations[i].enabled = newval;
1420 anims_enabled += newval ? 1 : -1;
1421 }
1422 break;
1423 default:
1424 handled = 0;
1425 }
1426 if (handled)
1427 ipc_answer_0(callid, retval);
1428 return handled;
1429}
1430
1431
1432/** Handler for messages concerning pixmap handling
1433 *
1434 */
1435static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1436{
1437 bool handled = true;
1438 int retval = EOK;
1439 int i, nvp;
1440
1441 switch (IPC_GET_METHOD(*call)) {
1442 case FB_VP_DRAW_PIXMAP:
1443 nvp = IPC_GET_ARG1(*call);
1444 if (nvp == -1)
1445 nvp = vp;
1446 if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1447 !viewports[nvp].initialized) {
1448 retval = EINVAL;
1449 break;
1450 }
1451 i = IPC_GET_ARG2(*call);
1452 retval = draw_pixmap(nvp, i);
1453 break;
1454 case FB_VP2PIXMAP:
1455 nvp = IPC_GET_ARG1(*call);
1456 if (nvp == -1)
1457 nvp = vp;
1458 if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1459 !viewports[nvp].initialized)
1460 retval = EINVAL;
1461 else
1462 retval = save_vp_to_pixmap(&viewports[nvp]);
1463 break;
1464 case FB_DROP_PIXMAP:
1465 i = IPC_GET_ARG1(*call);
1466 if (i >= MAX_PIXMAPS) {
1467 retval = EINVAL;
1468 break;
1469 }
1470 if (pixmaps[i].data) {
1471 free(pixmaps[i].data);
1472 pixmaps[i].data = NULL;
1473 }
1474 break;
1475 default:
1476 handled = 0;
1477 }
1478
1479 if (handled)
1480 ipc_answer_0(callid, retval);
1481 return handled;
1482
1483}
1484
1485static int rgb_from_style(attr_rgb_t *rgb, int style)
1486{
1487 switch (style) {
1488 case STYLE_NORMAL:
1489 rgb->fg_color = color_table[COLOR_BLACK];
1490 rgb->bg_color = color_table[COLOR_WHITE];
1491 break;
1492 case STYLE_EMPHASIS:
1493 rgb->fg_color = color_table[COLOR_RED];
1494 rgb->bg_color = color_table[COLOR_WHITE];
1495 break;
1496 default:
1497 return EINVAL;
1498 }
1499
1500 return EOK;
1501}
1502
1503static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
1504 ipcarg_t bg_color, ipcarg_t flags)
1505{
1506 fg_color = (fg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1507 bg_color = (bg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1508
1509 rgb->fg_color = color_table[fg_color];
1510 rgb->bg_color = color_table[bg_color];
1511
1512 return EOK;
1513}
1514
1515static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a)
1516{
1517 int rc;
1518
1519 switch (a->t) {
1520 case at_style:
1521 rc = rgb_from_style(rgb, a->a.s.style);
1522 break;
1523 case at_idx:
1524 rc = rgb_from_idx(rgb, a->a.i.fg_color,
1525 a->a.i.bg_color, a->a.i.flags);
1526 break;
1527 case at_rgb:
1528 *rgb = a->a.r;
1529 rc = EOK;
1530 break;
1531 }
1532
1533 return rc;
1534}
1535
1536static int fb_set_style(viewport_t *vport, ipcarg_t style)
1537{
1538 return rgb_from_style(&vport->attr, (int) style);
1539}
1540
1541static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
1542 ipcarg_t bg_color, ipcarg_t flags)
1543{
1544 return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
1545}
1546
1547/** Function for handling connections to FB
1548 *
1549 */
1550static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1551{
1552 unsigned int vp = 0;
1553 viewport_t *vport = &viewports[vp];
1554
1555 if (client_connected) {
1556 ipc_answer_0(iid, ELIMIT);
1557 return;
1558 }
1559
1560 /* Accept connection */
1561 client_connected = true;
1562 ipc_answer_0(iid, EOK);
1563
1564 while (true) {
1565 ipc_callid_t callid;
1566 ipc_call_t call;
1567 int retval;
1568 unsigned int i;
1569 int scroll;
1570 wchar_t ch;
1571 unsigned int col, row;
1572
1573 if ((vport->cursor_active) || (anims_enabled))
1574 callid = async_get_call_timeout(&call, 250000);
1575 else
1576 callid = async_get_call(&call);
1577
1578 mouse_hide();
1579 if (!callid) {
1580 cursor_blink(vport);
1581 anims_tick();
1582 mouse_show();
1583 continue;
1584 }
1585
1586 if (shm_handle(callid, &call, vp))
1587 continue;
1588
1589 if (pixmap_handle(callid, &call, vp))
1590 continue;
1591
1592 if (anim_handle(callid, &call, vp))
1593 continue;
1594
1595 switch (IPC_GET_METHOD(call)) {
1596 case IPC_M_PHONE_HUNGUP:
1597 client_connected = false;
1598
1599 /* Cleanup other viewports */
1600 for (i = 1; i < MAX_VIEWPORTS; i++)
1601 vport->initialized = false;
1602
1603 /* Exit thread */
1604 return;
1605
1606 case FB_PUTCHAR:
1607 ch = IPC_GET_ARG1(call);
1608 col = IPC_GET_ARG2(call);
1609 row = IPC_GET_ARG3(call);
1610
1611 if ((col >= vport->cols) || (row >= vport->rows)) {
1612 retval = EINVAL;
1613 break;
1614 }
1615 ipc_answer_0(callid, EOK);
1616
1617 draw_char(vport, ch, col, row);
1618
1619 /* Message already answered */
1620 continue;
1621 case FB_CLEAR:
1622 vport_clear(vport);
1623 cursor_show(vport);
1624 retval = EOK;
1625 break;
1626 case FB_CURSOR_GOTO:
1627 col = IPC_GET_ARG1(call);
1628 row = IPC_GET_ARG2(call);
1629
1630 if ((col >= vport->cols) || (row >= vport->rows)) {
1631 retval = EINVAL;
1632 break;
1633 }
1634 retval = EOK;
1635
1636 cursor_hide(vport);
1637 vport->cur_col = col;
1638 vport->cur_row = row;
1639 cursor_show(vport);
1640 break;
1641 case FB_CURSOR_VISIBILITY:
1642 cursor_hide(vport);
1643 vport->cursor_active = IPC_GET_ARG1(call);
1644 cursor_show(vport);
1645 retval = EOK;
1646 break;
1647 case FB_GET_CSIZE:
1648 ipc_answer_2(callid, EOK, vport->cols, vport->rows);
1649 continue;
1650 case FB_GET_COLOR_CAP:
1651 ipc_answer_1(callid, EOK, FB_CCAP_RGB);
1652 continue;
1653 case FB_SCROLL:
1654 scroll = IPC_GET_ARG1(call);
1655 if ((scroll > (int) vport->rows) || (scroll < (-(int) vport->rows))) {
1656 retval = EINVAL;
1657 break;
1658 }
1659 cursor_hide(vport);
1660 vport_scroll(vport, scroll);
1661 cursor_show(vport);
1662 retval = EOK;
1663 break;
1664 case FB_VIEWPORT_SWITCH:
1665 i = IPC_GET_ARG1(call);
1666 if (i >= MAX_VIEWPORTS) {
1667 retval = EINVAL;
1668 break;
1669 }
1670 if (!viewports[i].initialized) {
1671 retval = EADDRNOTAVAIL;
1672 break;
1673 }
1674 cursor_hide(vport);
1675 vp = i;
1676 vport = &viewports[vp];
1677 cursor_show(vport);
1678 retval = EOK;
1679 break;
1680 case FB_VIEWPORT_CREATE:
1681 retval = vport_create(IPC_GET_ARG1(call) >> 16,
1682 IPC_GET_ARG1(call) & 0xffff,
1683 IPC_GET_ARG2(call) >> 16,
1684 IPC_GET_ARG2(call) & 0xffff);
1685 break;
1686 case FB_VIEWPORT_DELETE:
1687 i = IPC_GET_ARG1(call);
1688 if (i >= MAX_VIEWPORTS) {
1689 retval = EINVAL;
1690 break;
1691 }
1692 if (!viewports[i].initialized) {
1693 retval = EADDRNOTAVAIL;
1694 break;
1695 }
1696 viewports[i].initialized = false;
1697 if (viewports[i].bgpixel)
1698 free(viewports[i].bgpixel);
1699 if (viewports[i].backbuf)
1700 free(viewports[i].backbuf);
1701 retval = EOK;
1702 break;
1703 case FB_SET_STYLE:
1704 retval = fb_set_style(vport, IPC_GET_ARG1(call));
1705 break;
1706 case FB_SET_COLOR:
1707 retval = fb_set_color(vport, IPC_GET_ARG1(call),
1708 IPC_GET_ARG2(call), IPC_GET_ARG3(call));
1709 break;
1710 case FB_SET_RGB_COLOR:
1711 vport->attr.fg_color = IPC_GET_ARG1(call);
1712 vport->attr.bg_color = IPC_GET_ARG2(call);
1713 retval = EOK;
1714 break;
1715 case FB_GET_RESOLUTION:
1716 ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1717 continue;
1718 case FB_POINTER_MOVE:
1719 pointer_enabled = true;
1720 mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
1721 retval = EOK;
1722 break;
1723 case FB_SCREEN_YIELD:
1724 case FB_SCREEN_RECLAIM:
1725 retval = EOK;
1726 break;
1727 default:
1728 retval = ENOENT;
1729 }
1730 ipc_answer_0(callid, retval);
1731 }
1732}
1733
1734/** Initialization of framebuffer
1735 *
1736 */
1737int fb_init(void)
1738{
1739 async_set_client_connection(fb_client_connection);
1740
1741 void *fb_ph_addr = (void *) sysinfo_value("fb.address.physical");
1742 unsigned int fb_offset = sysinfo_value("fb.offset");
1743 unsigned int fb_width = sysinfo_value("fb.width");
1744 unsigned int fb_height = sysinfo_value("fb.height");
1745 unsigned int fb_scanline = sysinfo_value("fb.scanline");
1746 unsigned int fb_visual = sysinfo_value("fb.visual");
1747
1748 unsigned int fbsize = fb_scanline * fb_height;
1749 void *fb_addr = as_get_mappable_page(fbsize);
1750
1751 if (physmem_map(fb_ph_addr + fb_offset, fb_addr,
1752 ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE) != 0)
1753 return -1;
1754
1755 if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1756 return 0;
1757
1758 return -1;
1759}
1760
1761/**
1762 * @}
1763 */
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