source: mainline/uspace/srv/fb/fb.c@ 9805cde

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 9805cde was 9805cde, checked in by Jiri Svoboda <jirik.svoboda@…>, 17 years ago

Console color support overhaul. Create C library console interface.
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File size: 38.7 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 <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_style(attr_rgb_t *rgb, int style);
189static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
190 ipcarg_t bg_color, ipcarg_t flags);
191
192static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
193 ipcarg_t bg_color, ipcarg_t attr);
194
195static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
196 uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color);
197static void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
198 uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color);
199
200static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
201 unsigned int row);
202
203
204#define RED(x, bits) ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))
205#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
206#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
207
208#define COL2X(col) ((col) * FONT_WIDTH)
209#define ROW2Y(row) ((row) * FONT_SCANLINES)
210
211#define X2COL(x) ((x) / FONT_WIDTH)
212#define Y2ROW(y) ((y) / FONT_SCANLINES)
213
214#define FB_POS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
215#define BB_POS(vport, col, row) ((row) * vport->cols + (col))
216#define GLYPH_POS(glyph, y, cursor) (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
217
218
219/** ARGB 8:8:8:8 conversion
220 *
221 */
222static void rgb_0888(void *dst, uint32_t rgb)
223{
224 *((uint32_t *) dst) = rgb & 0xffffff;
225}
226
227
228/** ABGR 8:8:8:8 conversion
229 *
230 */
231static void bgr_0888(void *dst, uint32_t rgb)
232{
233 *((uint32_t *) dst)
234 = (BLUE(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | RED(rgb, 8);
235}
236
237
238/** BGR 8:8:8 conversion
239 *
240 */
241static void rgb_888(void *dst, uint32_t rgb)
242{
243#if defined(FB_INVERT_ENDIAN)
244 ((uint8_t *) dst)[0] = RED(rgb, 8);
245 ((uint8_t *) dst)[1] = GREEN(rgb, 8);
246 ((uint8_t *) dst)[2] = BLUE(rgb, 8);
247#else
248 ((uint8_t *) dst)[0] = BLUE(rgb, 8);
249 ((uint8_t *) dst)[1] = GREEN(rgb, 8);
250 ((uint8_t *) dst)[2] = RED(rgb, 8);
251#endif
252}
253
254
255/** RGB 5:5:5 conversion
256 *
257 */
258static void rgb_555(void *dst, uint32_t rgb)
259{
260 *((uint16_t *) dst)
261 = (RED(rgb, 5) << 10) | (GREEN(rgb, 5) << 5) | BLUE(rgb, 5);
262}
263
264
265/** RGB 5:6:5 conversion
266 *
267 */
268static void rgb_565(void *dst, uint32_t rgb)
269{
270 *((uint16_t *) dst)
271 = (RED(rgb, 5) << 11) | (GREEN(rgb, 6) << 5) | BLUE(rgb, 5);
272}
273
274
275/** RGB 3:2:3
276 *
277 */
278static void rgb_323(void *dst, uint32_t rgb)
279{
280 *((uint8_t *) dst)
281 = ~((RED(rgb, 3) << 5) | (GREEN(rgb, 2) << 3) | BLUE(rgb, 3));
282}
283
284/** Draw a filled rectangle.
285 *
286 * @note Need real implementation that does not access VRAM twice.
287 */
288static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
289 unsigned int y1, uint32_t color)
290{
291 unsigned int x, y;
292 unsigned int copy_bytes;
293
294 uint8_t *sp, *dp;
295 uint8_t cbuf[4];
296
297 if (y0 >= y1 || x0 >= x1) return;
298 screen.rgb_conv(cbuf, color);
299
300 sp = &screen.fb_addr[FB_POS(x0, y0)];
301 dp = sp;
302
303 /* Draw the first line. */
304 for (x = x0; x < x1; x++) {
305 memcpy(dp, cbuf, screen.pixelbytes);
306 dp += screen.pixelbytes;
307 }
308
309 dp = sp + screen.scanline;
310 copy_bytes = (x1 - x0) * screen.pixelbytes;
311
312 /* Draw the remaining lines by copying. */
313 for (y = y0 + 1; y < y1; y++) {
314 memcpy(dp, sp, copy_bytes);
315 dp += screen.scanline;
316 }
317}
318
319/** Redraw viewport.
320 *
321 * @param vport Viewport to redraw
322 *
323 */
324static void vport_redraw(viewport_t *vport)
325{
326 unsigned int row, col;
327
328 for (row = 0; row < vport->rows; row++) {
329 for (col = 0; col < vport->cols; col++) {
330 draw_vp_glyph(vport, false, col, row);
331 }
332 }
333
334 if (COL2X(vport->cols) < vport->width) {
335 draw_filled_rect(
336 vport->x + COL2X(vport->cols), vport->y,
337 vport->x + vport->width, vport->y + vport->height,
338 vport->attr.bg_color);
339 }
340
341 if (ROW2Y(vport->rows) < vport->height) {
342 draw_filled_rect(
343 vport->x, vport->y + ROW2Y(vport->rows),
344 vport->x + vport->width, vport->y + vport->height,
345 vport->attr.bg_color);
346 }
347}
348
349static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
350 uint32_t bg_color)
351{
352 unsigned i;
353
354 for (i = 0; i < len; i++) {
355 backbuf[i].glyph = 0;
356 backbuf[i].fg_color = fg_color;
357 backbuf[i].bg_color = bg_color;
358 }
359}
360
361/** Clear viewport.
362 *
363 * @param vport Viewport to clear
364 *
365 */
366static void vport_clear(viewport_t *vport)
367{
368 backbuf_clear(vport->backbuf, vport->cols * vport->rows,
369 vport->attr.fg_color, vport->attr.bg_color);
370 vport_redraw(vport);
371}
372
373/** Scroll viewport by the specified number of lines.
374 *
375 * @param vport Viewport to scroll
376 * @param lines Number of lines to scroll
377 *
378 */
379static void vport_scroll(viewport_t *vport, int lines)
380{
381 unsigned int row, col;
382 unsigned int x, y;
383 uint8_t glyph;
384 uint32_t fg_color;
385 uint32_t bg_color;
386 bb_cell_t *bbp, *xbp;
387
388 /*
389 * Redraw.
390 */
391
392 y = vport->y;
393 for (row = 0; row < vport->rows; row++) {
394 x = vport->x;
395 for (col = 0; col < vport->cols; col++) {
396 if ((row + lines >= 0) && (row + lines < vport->rows)) {
397 xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
398 bbp = &vport->backbuf[BB_POS(vport, col, row)];
399
400 glyph = xbp->glyph;
401 fg_color = xbp->fg_color;
402 bg_color = xbp->bg_color;
403
404 if (bbp->glyph == glyph &&
405 bbp->fg_color == xbp->fg_color &&
406 bbp->bg_color == xbp->bg_color) {
407 x += FONT_WIDTH;
408 continue;
409 }
410 } else {
411 glyph = 0;
412 fg_color = vport->attr.fg_color;
413 bg_color = vport->attr.bg_color;
414 }
415
416 (*vport->dglyph)(x, y, false, vport->glyphs, glyph,
417 fg_color, bg_color);
418 x += FONT_WIDTH;
419 }
420 y += FONT_SCANLINES;
421 }
422
423 /*
424 * Scroll backbuffer.
425 */
426
427 if (lines > 0) {
428 memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
429 vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
430 backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
431 vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
432 } else {
433 memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
434 vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
435 backbuf_clear(vport->backbuf, - vport->cols * lines,
436 vport->attr.fg_color, vport->attr.bg_color);
437 }
438}
439
440/** Render glyphs
441 *
442 * Convert glyphs from device independent font
443 * description to current visual representation.
444 *
445 * @param vport Viewport
446 *
447 */
448static void render_glyphs(viewport_t* vport)
449{
450 unsigned int glyph;
451
452 for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
453 unsigned int y;
454
455 for (y = 0; y < FONT_SCANLINES; y++) {
456 unsigned int x;
457
458 for (x = 0; x < FONT_WIDTH; x++) {
459 screen.rgb_conv(&vport->glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
460 (fb_font[glyph * FONT_SCANLINES + y] & (1 << (7 - x)))
461 ? 0xffffff : 0x000000);
462
463 screen.rgb_conv(&vport->glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
464 (fb_font[glyph * FONT_SCANLINES + y] & (1 << (7 - x)))
465 ? 0x000000 : 0xffffff);
466 }
467 }
468 }
469
470 screen.rgb_conv(vport->bgpixel, vport->attr.bg_color);
471}
472
473
474/** Create new viewport
475 *
476 * @param x Origin of the viewport (x).
477 * @param y Origin of the viewport (y).
478 * @param width Width of the viewport.
479 * @param height Height of the viewport.
480 *
481 * @return New viewport number.
482 *
483 */
484static int vport_create(unsigned int x, unsigned int y,
485 unsigned int width, unsigned int height)
486{
487 unsigned int i;
488
489 for (i = 0; i < MAX_VIEWPORTS; i++) {
490 if (!viewports[i].initialized)
491 break;
492 }
493 if (i == MAX_VIEWPORTS)
494 return ELIMIT;
495
496 unsigned int cols = width / FONT_WIDTH;
497 unsigned int rows = height / FONT_SCANLINES;
498 unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
499 unsigned int glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
500 unsigned int word_size = sizeof(unsigned long);
501
502 bb_cell_t *backbuf = (bb_cell_t *) malloc(bbsize);
503 if (!backbuf)
504 return ENOMEM;
505
506 uint8_t *glyphs = (uint8_t *) malloc(glyphsize);
507 if (!glyphs) {
508 free(backbuf);
509 return ENOMEM;
510 }
511
512 uint8_t *bgpixel = (uint8_t *) malloc(screen.pixelbytes);
513 if (!bgpixel) {
514 free(glyphs);
515 free(backbuf);
516 return ENOMEM;
517 }
518
519 backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
520 memset(glyphs, 0, glyphsize);
521 memset(bgpixel, 0, screen.pixelbytes);
522
523 viewports[i].x = x;
524 viewports[i].y = y;
525 viewports[i].width = width;
526 viewports[i].height = height;
527
528 viewports[i].cols = cols;
529 viewports[i].rows = rows;
530
531 viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
532 viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
533
534 viewports[i].glyphs = glyphs;
535 viewports[i].bgpixel = bgpixel;
536
537 /*
538 * Conditions necessary to select aligned version:
539 *
540 * - word size is divisible by pixelbytes
541 * - cell scanline size is divisible by word size
542 * - cell scanlines are word-aligned
543 */
544 if ((word_size % screen.pixelbytes) == 0 &&
545 (FONT_WIDTH * screen.pixelbytes) % word_size == 0 &&
546 (x * screen.pixelbytes) % word_size == 0 &&
547 screen.scanline % word_size == 0) {
548
549 viewports[i].dglyph = draw_glyph_aligned;
550 } else {
551 viewports[i].dglyph = draw_glyph_fallback;
552 }
553
554 viewports[i].cur_col = 0;
555 viewports[i].cur_row = 0;
556 viewports[i].cursor_active = false;
557 viewports[i].cursor_shown = false;
558
559 viewports[i].bbsize = bbsize;
560 viewports[i].backbuf = backbuf;
561
562 viewports[i].initialized = true;
563
564 render_glyphs(&viewports[i]);
565
566 return i;
567}
568
569
570/** Initialize framebuffer as a chardev output device
571 *
572 * @param addr Address of the framebuffer
573 * @param xres Screen width in pixels
574 * @param yres Screen height in pixels
575 * @param visual Bits per pixel (8, 16, 24, 32)
576 * @param scan Bytes per one scanline
577 *
578 */
579static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
580 unsigned int scan, unsigned int visual)
581{
582 switch (visual) {
583 case VISUAL_INDIRECT_8:
584 screen.rgb_conv = rgb_323;
585 screen.pixelbytes = 1;
586 break;
587 case VISUAL_RGB_5_5_5:
588 screen.rgb_conv = rgb_555;
589 screen.pixelbytes = 2;
590 break;
591 case VISUAL_RGB_5_6_5:
592 screen.rgb_conv = rgb_565;
593 screen.pixelbytes = 2;
594 break;
595 case VISUAL_RGB_8_8_8:
596 screen.rgb_conv = rgb_888;
597 screen.pixelbytes = 3;
598 break;
599 case VISUAL_RGB_8_8_8_0:
600 screen.rgb_conv = rgb_888;
601 screen.pixelbytes = 4;
602 break;
603 case VISUAL_RGB_0_8_8_8:
604 screen.rgb_conv = rgb_0888;
605 screen.pixelbytes = 4;
606 break;
607 case VISUAL_BGR_0_8_8_8:
608 screen.rgb_conv = bgr_0888;
609 screen.pixelbytes = 4;
610 break;
611 default:
612 return false;
613 }
614
615 screen.fb_addr = (unsigned char *) addr;
616 screen.xres = xres;
617 screen.yres = yres;
618 screen.scanline = scan;
619
620 screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
621 screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
622
623 /* Create first viewport */
624 vport_create(0, 0, xres, yres);
625
626 return true;
627}
628
629
630/** Draw a glyph, takes advantage of alignment.
631 *
632 * This version can only be used if the following conditions are met:
633 *
634 * - word size is divisible by pixelbytes
635 * - cell scanline size is divisible by word size
636 * - cell scanlines are word-aligned
637 *
638 * It makes use of the pre-rendered mask to process (possibly) several
639 * pixels at once (word size / pixelbytes pixels at a time are processed)
640 * making it very fast. Most notably this version is not applicable at 24 bits
641 * per pixel.
642 *
643 * @param x x coordinate of top-left corner on screen.
644 * @param y y coordinate of top-left corner on screen.
645 * @param cursor Draw glyph with cursor
646 * @param glyphs Pointer to font bitmap.
647 * @param glyph Code of the glyph to draw.
648 * @param fg_color Foreground color.
649 * @param bg_color Backgroudn color.
650 */
651static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
652 uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color)
653{
654 unsigned int i, yd;
655 unsigned long fg_buf, bg_buf;
656 unsigned long *maskp, *dp;
657 unsigned long mask;
658 unsigned int ww, d_add;
659
660 /*
661 * Prepare a pair of words, one filled with foreground-color
662 * pattern and the other filled with background-color pattern.
663 */
664 for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
665 screen.rgb_conv(&((uint8_t *)&fg_buf)[i * screen.pixelbytes],
666 fg_color);
667 screen.rgb_conv(&((uint8_t *)&bg_buf)[i * screen.pixelbytes],
668 bg_color);
669 }
670
671
672 /* Pointer to the current position in the mask. */
673 maskp = (unsigned long *) &glyphs[GLYPH_POS(glyph, 0, cursor)];
674
675 /* Pointer to the current position on the screen. */
676 dp = (unsigned long *) &screen.fb_addr[FB_POS(x, y)];
677
678 /* Width of the character cell in words. */
679 ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
680
681 /* Offset to add when moving to another screen scanline. */
682 d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
683
684 for (yd = 0; yd < FONT_SCANLINES; yd++) {
685 /*
686 * Now process the cell scanline, combining foreground
687 * and background color patters using the pre-rendered mask.
688 */
689 for (i = 0; i < ww; i++) {
690 mask = *maskp++;
691 *dp++ = (fg_buf & mask) | (bg_buf & ~mask);
692 }
693
694 /* Move to the beginning of the next scanline of the cell. */
695 dp = (unsigned long *) ((uint8_t *) dp + d_add);
696 }
697}
698
699/** Draw a glyph, fallback version.
700 *
701 * This version does not make use of the pre-rendered mask, it uses
702 * the font bitmap directly. It works always, but it is slower.
703 *
704 * @param x x coordinate of top-left corner on screen.
705 * @param y y coordinate of top-left corner on screen.
706 * @param cursor Draw glyph with cursor
707 * @param glyphs Pointer to font bitmap.
708 * @param glyph Code of the glyph to draw.
709 * @param fg_color Foreground color.
710 * @param bg_color Backgroudn color.
711 */
712void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
713 uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color)
714{
715 unsigned int i, j, yd;
716 uint8_t fg_buf[4], bg_buf[4];
717 uint8_t *dp, *sp;
718 unsigned int d_add;
719 uint8_t b;
720
721 /* Pre-render 1x the foreground and background color pixels. */
722 if (cursor) {
723 screen.rgb_conv(fg_buf, bg_color);
724 screen.rgb_conv(bg_buf, fg_color);
725 } else {
726 screen.rgb_conv(fg_buf, fg_color);
727 screen.rgb_conv(bg_buf, bg_color);
728 }
729
730 /* Pointer to the current position on the screen. */
731 dp = (uint8_t *) &screen.fb_addr[FB_POS(x, y)];
732
733 /* Offset to add when moving to another screen scanline. */
734 d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
735
736 for (yd = 0; yd < FONT_SCANLINES; yd++) {
737 /* Byte containing bits of the glyph scanline. */
738 b = fb_font[glyph * FONT_SCANLINES + yd];
739
740 for (i = 0; i < FONT_WIDTH; i++) {
741 /* Choose color based on the current bit. */
742 sp = (b & 0x80) ? fg_buf : bg_buf;
743
744 /* Copy the pixel. */
745 for (j = 0; j < screen.pixelbytes; j++) {
746 *dp++ = *sp++;
747 }
748
749 /* Move to the next bit. */
750 b = b << 1;
751 }
752
753 /* Move to the beginning of the next scanline of the cell. */
754 dp += d_add;
755 }
756}
757
758/** Draw glyph at specified position in viewport.
759 *
760 * @param vport Viewport identification
761 * @param cursor Draw glyph with cursor
762 * @param col Screen position relative to viewport
763 * @param row Screen position relative to viewport
764 *
765 */
766static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
767 unsigned int row)
768{
769 unsigned int x = vport->x + COL2X(col);
770 unsigned int y = vport->y + ROW2Y(row);
771
772 uint8_t glyph;
773 uint32_t fg_color;
774 uint32_t bg_color;
775
776 glyph = vport->backbuf[BB_POS(vport, col, row)].glyph;
777 fg_color = vport->backbuf[BB_POS(vport, col, row)].fg_color;
778 bg_color = vport->backbuf[BB_POS(vport, col, row)].bg_color;
779
780 (*vport->dglyph)(x, y, cursor, vport->glyphs, glyph,
781 fg_color, bg_color);
782}
783
784/** Hide cursor if it is shown
785 *
786 */
787static void cursor_hide(viewport_t *vport)
788{
789 if ((vport->cursor_active) && (vport->cursor_shown)) {
790 draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
791 vport->cursor_shown = false;
792 }
793}
794
795
796/** Show cursor if cursor showing is enabled
797 *
798 */
799static void cursor_show(viewport_t *vport)
800{
801 /* Do not check for cursor_shown */
802 if (vport->cursor_active) {
803 draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
804 vport->cursor_shown = true;
805 }
806}
807
808
809/** Invert cursor, if it is enabled
810 *
811 */
812static void cursor_blink(viewport_t *vport)
813{
814 if (vport->cursor_shown)
815 cursor_hide(vport);
816 else
817 cursor_show(vport);
818}
819
820
821/** Draw character at given position relative to viewport
822 *
823 * @param vport Viewport identification
824 * @param c Character to draw
825 * @param col Screen position relative to viewport
826 * @param row Screen position relative to viewport
827 *
828 */
829static void draw_char(viewport_t *vport, uint8_t c, unsigned int col, unsigned int row)
830{
831 bb_cell_t *bbp;
832
833 /* Do not hide cursor if we are going to overwrite it */
834 if ((vport->cursor_active) && (vport->cursor_shown) &&
835 ((vport->cur_col != col) || (vport->cur_row != row)))
836 cursor_hide(vport);
837
838 bbp = &vport->backbuf[BB_POS(vport, col, row)];
839 bbp->glyph = c;
840 bbp->fg_color = vport->attr.fg_color;
841 bbp->bg_color = vport->attr.bg_color;
842
843 draw_vp_glyph(vport, false, col, row);
844
845 vport->cur_col = col;
846 vport->cur_row = row;
847
848 vport->cur_col++;
849 if (vport->cur_col >= vport->cols) {
850 vport->cur_col = 0;
851 vport->cur_row++;
852 if (vport->cur_row >= vport->rows)
853 vport->cur_row--;
854 }
855
856 cursor_show(vport);
857}
858
859
860/** Draw text data to viewport
861 *
862 * @param vport Viewport id
863 * @param data Text data fitting exactly into viewport
864 *
865 */
866static void draw_text_data(viewport_t *vport, keyfield_t *data)
867{
868 unsigned int i;
869 bb_cell_t *bbp;
870 attrs_t *a;
871 attr_rgb_t rgb;
872
873 for (i = 0; i < vport->cols * vport->rows; i++) {
874 unsigned int col = i % vport->cols;
875 unsigned int row = i / vport->cols;
876
877 bbp = &vport->backbuf[BB_POS(vport, col, row)];
878 uint8_t glyph = bbp->glyph;
879
880 if (glyph != data[i].character) {
881 bbp->glyph = data[i].character;
882 a = &data[i].attrs;
883
884 switch (a->t) {
885 case at_style:
886 rgb_from_style(&rgb, a->a.s.style);
887 break;
888 case at_idx:
889 rgb_from_idx(&rgb, a->a.i.fg_color,
890 a->a.i.bg_color, a->a.i.flags);
891 break;
892 case at_rgb:
893 rgb = a->a.r;
894 break;
895 }
896
897 bbp->fg_color = rgb.fg_color;
898 bbp->bg_color = rgb.bg_color;
899
900 draw_vp_glyph(vport, false, col, row);
901 }
902 }
903 cursor_show(vport);
904}
905
906
907static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
908{
909 int pm = *((int *) data);
910 pixmap_t *pmap = &pixmaps[pm];
911 unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
912
913 screen.rgb_conv(&pmap->data[pos], color);
914}
915
916
917static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
918{
919 viewport_t *vport = (viewport_t *) data;
920 unsigned int dx = vport->x + x;
921 unsigned int dy = vport->y + y;
922
923 screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
924}
925
926
927/** Return first free pixmap
928 *
929 */
930static int find_free_pixmap(void)
931{
932 unsigned int i;
933
934 for (i = 0; i < MAX_PIXMAPS; i++)
935 if (!pixmaps[i].data)
936 return i;
937
938 return -1;
939}
940
941
942/** Create a new pixmap and return appropriate ID
943 *
944 */
945static int shm2pixmap(unsigned char *shm, size_t size)
946{
947 int pm;
948 pixmap_t *pmap;
949
950 pm = find_free_pixmap();
951 if (pm == -1)
952 return ELIMIT;
953
954 pmap = &pixmaps[pm];
955
956 if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
957 return EINVAL;
958
959 pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
960 if (!pmap->data)
961 return ENOMEM;
962
963 ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
964
965 return pm;
966}
967
968
969/** Handle shared memory communication calls
970 *
971 * Protocol for drawing pixmaps:
972 * - FB_PREPARE_SHM(client shm identification)
973 * - IPC_M_AS_AREA_SEND
974 * - FB_DRAW_PPM(startx, starty)
975 * - FB_DROP_SHM
976 *
977 * Protocol for text drawing
978 * - IPC_M_AS_AREA_SEND
979 * - FB_DRAW_TEXT_DATA
980 *
981 * @param callid Callid of the current call
982 * @param call Current call data
983 * @param vp Active viewport
984 *
985 * @return false if the call was not handled byt this function, true otherwise
986 *
987 * Note: this function is not threads safe, you would have
988 * to redefine static variables with __thread
989 *
990 */
991static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
992{
993 static keyfield_t *interbuffer = NULL;
994 static size_t intersize = 0;
995
996 static unsigned char *shm = NULL;
997 static ipcarg_t shm_id = 0;
998 static size_t shm_size;
999
1000 bool handled = true;
1001 int retval = EOK;
1002 viewport_t *vport = &viewports[vp];
1003 unsigned int x;
1004 unsigned int y;
1005
1006 switch (IPC_GET_METHOD(*call)) {
1007 case IPC_M_SHARE_OUT:
1008 /* We accept one area for data interchange */
1009 if (IPC_GET_ARG1(*call) == shm_id) {
1010 void *dest = as_get_mappable_page(IPC_GET_ARG2(*call));
1011 shm_size = IPC_GET_ARG2(*call);
1012 if (!ipc_answer_1(callid, EOK, (sysarg_t) dest))
1013 shm = dest;
1014 else
1015 shm_id = 0;
1016
1017 if (shm[0] != 'P')
1018 return false;
1019
1020 return true;
1021 } else {
1022 intersize = IPC_GET_ARG2(*call);
1023 receive_comm_area(callid, call, (void *) &interbuffer);
1024 }
1025 return true;
1026 case FB_PREPARE_SHM:
1027 if (shm_id)
1028 retval = EBUSY;
1029 else
1030 shm_id = IPC_GET_ARG1(*call);
1031 break;
1032
1033 case FB_DROP_SHM:
1034 if (shm) {
1035 as_area_destroy(shm);
1036 shm = NULL;
1037 }
1038 shm_id = 0;
1039 break;
1040
1041 case FB_SHM2PIXMAP:
1042 if (!shm) {
1043 retval = EINVAL;
1044 break;
1045 }
1046 retval = shm2pixmap(shm, shm_size);
1047 break;
1048 case FB_DRAW_PPM:
1049 if (!shm) {
1050 retval = EINVAL;
1051 break;
1052 }
1053 x = IPC_GET_ARG1(*call);
1054 y = IPC_GET_ARG2(*call);
1055
1056 if ((x > vport->width) || (y > vport->height)) {
1057 retval = EINVAL;
1058 break;
1059 }
1060
1061 ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
1062 IPC_GET_ARG2(*call), vport->width - x, vport->height - y, putpixel, (void *) vport);
1063 break;
1064 case FB_DRAW_TEXT_DATA:
1065 if (!interbuffer) {
1066 retval = EINVAL;
1067 break;
1068 }
1069 if (intersize < vport->cols * vport->rows * sizeof(*interbuffer)) {
1070 retval = EINVAL;
1071 break;
1072 }
1073 draw_text_data(vport, interbuffer);
1074 break;
1075 default:
1076 handled = false;
1077 }
1078
1079 if (handled)
1080 ipc_answer_0(callid, retval);
1081 return handled;
1082}
1083
1084
1085static void copy_vp_to_pixmap(viewport_t *vport, pixmap_t *pmap)
1086{
1087 unsigned int width = vport->width;
1088 unsigned int height = vport->height;
1089
1090 if (width + vport->x > screen.xres)
1091 width = screen.xres - vport->x;
1092 if (height + vport->y > screen.yres)
1093 height = screen.yres - vport->y;
1094
1095 unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1096 unsigned int realheight = pmap->height <= height ? pmap->height : height;
1097
1098 unsigned int srcrowsize = vport->width * screen.pixelbytes;
1099 unsigned int realrowsize = realwidth * screen.pixelbytes;
1100
1101 unsigned int y;
1102 for (y = 0; y < realheight; y++) {
1103 unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1104 memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1105 }
1106}
1107
1108
1109/** Save viewport to pixmap
1110 *
1111 */
1112static int save_vp_to_pixmap(viewport_t *vport)
1113{
1114 int pm;
1115 pixmap_t *pmap;
1116
1117 pm = find_free_pixmap();
1118 if (pm == -1)
1119 return ELIMIT;
1120
1121 pmap = &pixmaps[pm];
1122 pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
1123 if (!pmap->data)
1124 return ENOMEM;
1125
1126 pmap->width = vport->width;
1127 pmap->height = vport->height;
1128
1129 copy_vp_to_pixmap(vport, pmap);
1130
1131 return pm;
1132}
1133
1134
1135/** Draw pixmap on screen
1136 *
1137 * @param vp Viewport to draw on
1138 * @param pm Pixmap identifier
1139 *
1140 */
1141static int draw_pixmap(int vp, int pm)
1142{
1143 pixmap_t *pmap = &pixmaps[pm];
1144 viewport_t *vport = &viewports[vp];
1145
1146 unsigned int width = vport->width;
1147 unsigned int height = vport->height;
1148
1149 if (width + vport->x > screen.xres)
1150 width = screen.xres - vport->x;
1151 if (height + vport->y > screen.yres)
1152 height = screen.yres - vport->y;
1153
1154 if (!pmap->data)
1155 return EINVAL;
1156
1157 unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1158 unsigned int realheight = pmap->height <= height ? pmap->height : height;
1159
1160 unsigned int srcrowsize = vport->width * screen.pixelbytes;
1161 unsigned int realrowsize = realwidth * screen.pixelbytes;
1162
1163 unsigned int y;
1164 for (y = 0; y < realheight; y++) {
1165 unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1166 memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1167 }
1168
1169 return EOK;
1170}
1171
1172
1173/** Tick animation one step forward
1174 *
1175 */
1176static void anims_tick(void)
1177{
1178 unsigned int i;
1179 static int counts = 0;
1180
1181 /* Limit redrawing */
1182 counts = (counts + 1) % 8;
1183 if (counts)
1184 return;
1185
1186 for (i = 0; i < MAX_ANIMATIONS; i++) {
1187 if ((!animations[i].animlen) || (!animations[i].initialized) ||
1188 (!animations[i].enabled))
1189 continue;
1190
1191 draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
1192 animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1193 }
1194}
1195
1196
1197static unsigned int pointer_x;
1198static unsigned int pointer_y;
1199static bool pointer_shown, pointer_enabled;
1200static int pointer_vport = -1;
1201static int pointer_pixmap = -1;
1202
1203
1204static void mouse_show(void)
1205{
1206 int i, j;
1207 int visibility;
1208 int color;
1209 int bytepos;
1210
1211 if ((pointer_shown) || (!pointer_enabled))
1212 return;
1213
1214 /* Save image under the pointer. */
1215 if (pointer_vport == -1) {
1216 pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1217 if (pointer_vport < 0)
1218 return;
1219 } else {
1220 viewports[pointer_vport].x = pointer_x;
1221 viewports[pointer_vport].y = pointer_y;
1222 }
1223
1224 if (pointer_pixmap == -1)
1225 pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
1226 else
1227 copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
1228
1229 /* Draw mouse pointer. */
1230 for (i = 0; i < pointer_height; i++)
1231 for (j = 0; j < pointer_width; j++) {
1232 bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
1233 visibility = pointer_mask_bits[bytepos] &
1234 (1 << (j % 8));
1235 if (visibility) {
1236 color = pointer_bits[bytepos] &
1237 (1 << (j % 8)) ? 0 : 0xffffff;
1238 if (pointer_x + j < screen.xres && pointer_y +
1239 i < screen.yres)
1240 putpixel(&viewports[0], pointer_x + j,
1241 pointer_y + i, color);
1242 }
1243 }
1244 pointer_shown = 1;
1245}
1246
1247
1248static void mouse_hide(void)
1249{
1250 /* Restore image under the pointer. */
1251 if (pointer_shown) {
1252 draw_pixmap(pointer_vport, pointer_pixmap);
1253 pointer_shown = 0;
1254 }
1255}
1256
1257
1258static void mouse_move(unsigned int x, unsigned int y)
1259{
1260 mouse_hide();
1261 pointer_x = x;
1262 pointer_y = y;
1263 mouse_show();
1264}
1265
1266
1267static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1268{
1269 bool handled = true;
1270 int retval = EOK;
1271 int i, nvp;
1272 int newval;
1273
1274 switch (IPC_GET_METHOD(*call)) {
1275 case FB_ANIM_CREATE:
1276 nvp = IPC_GET_ARG1(*call);
1277 if (nvp == -1)
1278 nvp = vp;
1279 if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1280 !viewports[nvp].initialized) {
1281 retval = EINVAL;
1282 break;
1283 }
1284 for (i = 0; i < MAX_ANIMATIONS; i++) {
1285 if (!animations[i].initialized)
1286 break;
1287 }
1288 if (i == MAX_ANIMATIONS) {
1289 retval = ELIMIT;
1290 break;
1291 }
1292 animations[i].initialized = 1;
1293 animations[i].animlen = 0;
1294 animations[i].pos = 0;
1295 animations[i].enabled = 0;
1296 animations[i].vp = nvp;
1297 retval = i;
1298 break;
1299 case FB_ANIM_DROP:
1300 i = IPC_GET_ARG1(*call);
1301 if (i >= MAX_ANIMATIONS || i < 0) {
1302 retval = EINVAL;
1303 break;
1304 }
1305 animations[i].initialized = 0;
1306 break;
1307 case FB_ANIM_ADDPIXMAP:
1308 i = IPC_GET_ARG1(*call);
1309 if (i >= MAX_ANIMATIONS || i < 0 ||
1310 !animations[i].initialized) {
1311 retval = EINVAL;
1312 break;
1313 }
1314 if (animations[i].animlen == MAX_ANIM_LEN) {
1315 retval = ELIMIT;
1316 break;
1317 }
1318 newval = IPC_GET_ARG2(*call);
1319 if (newval < 0 || newval > MAX_PIXMAPS ||
1320 !pixmaps[newval].data) {
1321 retval = EINVAL;
1322 break;
1323 }
1324 animations[i].pixmaps[animations[i].animlen++] = newval;
1325 break;
1326 case FB_ANIM_CHGVP:
1327 i = IPC_GET_ARG1(*call);
1328 if (i >= MAX_ANIMATIONS || i < 0) {
1329 retval = EINVAL;
1330 break;
1331 }
1332 nvp = IPC_GET_ARG2(*call);
1333 if (nvp == -1)
1334 nvp = vp;
1335 if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1336 !viewports[nvp].initialized) {
1337 retval = EINVAL;
1338 break;
1339 }
1340 animations[i].vp = nvp;
1341 break;
1342 case FB_ANIM_START:
1343 case FB_ANIM_STOP:
1344 i = IPC_GET_ARG1(*call);
1345 if (i >= MAX_ANIMATIONS || i < 0) {
1346 retval = EINVAL;
1347 break;
1348 }
1349 newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
1350 if (newval ^ animations[i].enabled) {
1351 animations[i].enabled = newval;
1352 anims_enabled += newval ? 1 : -1;
1353 }
1354 break;
1355 default:
1356 handled = 0;
1357 }
1358 if (handled)
1359 ipc_answer_0(callid, retval);
1360 return handled;
1361}
1362
1363
1364/** Handler for messages concerning pixmap handling
1365 *
1366 */
1367static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1368{
1369 bool handled = true;
1370 int retval = EOK;
1371 int i, nvp;
1372
1373 switch (IPC_GET_METHOD(*call)) {
1374 case FB_VP_DRAW_PIXMAP:
1375 nvp = IPC_GET_ARG1(*call);
1376 if (nvp == -1)
1377 nvp = vp;
1378 if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1379 !viewports[nvp].initialized) {
1380 retval = EINVAL;
1381 break;
1382 }
1383 i = IPC_GET_ARG2(*call);
1384 retval = draw_pixmap(nvp, i);
1385 break;
1386 case FB_VP2PIXMAP:
1387 nvp = IPC_GET_ARG1(*call);
1388 if (nvp == -1)
1389 nvp = vp;
1390 if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1391 !viewports[nvp].initialized)
1392 retval = EINVAL;
1393 else
1394 retval = save_vp_to_pixmap(&viewports[nvp]);
1395 break;
1396 case FB_DROP_PIXMAP:
1397 i = IPC_GET_ARG1(*call);
1398 if (i >= MAX_PIXMAPS) {
1399 retval = EINVAL;
1400 break;
1401 }
1402 if (pixmaps[i].data) {
1403 free(pixmaps[i].data);
1404 pixmaps[i].data = NULL;
1405 }
1406 break;
1407 default:
1408 handled = 0;
1409 }
1410
1411 if (handled)
1412 ipc_answer_0(callid, retval);
1413 return handled;
1414
1415}
1416
1417static int rgb_from_style(attr_rgb_t *rgb, int style)
1418{
1419 switch (style) {
1420 case STYLE_NORMAL:
1421 rgb->fg_color = color_table[COLOR_BLACK];
1422 rgb->bg_color = color_table[COLOR_WHITE];
1423 break;
1424 case STYLE_EMPHASIS:
1425 rgb->fg_color = color_table[COLOR_RED];
1426 rgb->bg_color = color_table[COLOR_WHITE];
1427 break;
1428 default:
1429 return EINVAL;
1430 }
1431
1432 return EOK;
1433}
1434
1435static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
1436 ipcarg_t bg_color, ipcarg_t flags)
1437{
1438 fg_color = (fg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1439 bg_color = (bg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1440
1441 rgb->fg_color = color_table[fg_color];
1442 rgb->bg_color = color_table[bg_color];
1443
1444 return EOK;
1445}
1446
1447static int fb_set_style(viewport_t *vport, ipcarg_t style)
1448{
1449 return rgb_from_style(&vport->attr, (int) style);
1450}
1451
1452static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
1453 ipcarg_t bg_color, ipcarg_t flags)
1454{
1455 return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
1456}
1457
1458/** Function for handling connections to FB
1459 *
1460 */
1461static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1462{
1463 unsigned int vp = 0;
1464 viewport_t *vport = &viewports[vp];
1465
1466 if (client_connected) {
1467 ipc_answer_0(iid, ELIMIT);
1468 return;
1469 }
1470
1471 /* Accept connection */
1472 client_connected = true;
1473 ipc_answer_0(iid, EOK);
1474
1475 while (true) {
1476 ipc_callid_t callid;
1477 ipc_call_t call;
1478 int retval;
1479 unsigned int i;
1480 int scroll;
1481 uint8_t glyph;
1482 unsigned int row, col;
1483
1484 if ((vport->cursor_active) || (anims_enabled))
1485 callid = async_get_call_timeout(&call, 250000);
1486 else
1487 callid = async_get_call(&call);
1488
1489 mouse_hide();
1490 if (!callid) {
1491 cursor_blink(vport);
1492 anims_tick();
1493 mouse_show();
1494 continue;
1495 }
1496
1497 if (shm_handle(callid, &call, vp))
1498 continue;
1499
1500 if (pixmap_handle(callid, &call, vp))
1501 continue;
1502
1503 if (anim_handle(callid, &call, vp))
1504 continue;
1505
1506 switch (IPC_GET_METHOD(call)) {
1507 case IPC_M_PHONE_HUNGUP:
1508 client_connected = false;
1509
1510 /* Cleanup other viewports */
1511 for (i = 1; i < MAX_VIEWPORTS; i++)
1512 vport->initialized = false;
1513
1514 /* Exit thread */
1515 return;
1516
1517 case FB_PUTCHAR:
1518 glyph = IPC_GET_ARG1(call);
1519 row = IPC_GET_ARG2(call);
1520 col = IPC_GET_ARG3(call);
1521
1522 if ((col >= vport->cols) || (row >= vport->rows)) {
1523 retval = EINVAL;
1524 break;
1525 }
1526 ipc_answer_0(callid, EOK);
1527
1528 draw_char(vport, glyph, col, row);
1529
1530 /* Message already answered */
1531 continue;
1532 case FB_CLEAR:
1533 vport_clear(vport);
1534 cursor_show(vport);
1535 retval = EOK;
1536 break;
1537 case FB_CURSOR_GOTO:
1538 row = IPC_GET_ARG1(call);
1539 col = IPC_GET_ARG2(call);
1540
1541 if ((col >= vport->cols) || (row >= vport->rows)) {
1542 retval = EINVAL;
1543 break;
1544 }
1545 retval = EOK;
1546
1547 cursor_hide(vport);
1548 vport->cur_col = col;
1549 vport->cur_row = row;
1550 cursor_show(vport);
1551 break;
1552 case FB_CURSOR_VISIBILITY:
1553 cursor_hide(vport);
1554 vport->cursor_active = IPC_GET_ARG1(call);
1555 cursor_show(vport);
1556 retval = EOK;
1557 break;
1558 case FB_GET_CSIZE:
1559 ipc_answer_2(callid, EOK, vport->rows, vport->cols);
1560 continue;
1561 case FB_SCROLL:
1562 scroll = IPC_GET_ARG1(call);
1563 if ((scroll > (int) vport->rows) || (scroll < (-(int) vport->rows))) {
1564 retval = EINVAL;
1565 break;
1566 }
1567 cursor_hide(vport);
1568 vport_scroll(vport, scroll);
1569 cursor_show(vport);
1570 retval = EOK;
1571 break;
1572 case FB_VIEWPORT_SWITCH:
1573 i = IPC_GET_ARG1(call);
1574 if (i >= MAX_VIEWPORTS) {
1575 retval = EINVAL;
1576 break;
1577 }
1578 if (!viewports[i].initialized) {
1579 retval = EADDRNOTAVAIL;
1580 break;
1581 }
1582 cursor_hide(vport);
1583 vp = i;
1584 vport = &viewports[vp];
1585 cursor_show(vport);
1586 retval = EOK;
1587 break;
1588 case FB_VIEWPORT_CREATE:
1589 retval = vport_create(IPC_GET_ARG1(call) >> 16,
1590 IPC_GET_ARG1(call) & 0xffff,
1591 IPC_GET_ARG2(call) >> 16,
1592 IPC_GET_ARG2(call) & 0xffff);
1593 break;
1594 case FB_VIEWPORT_DELETE:
1595 i = IPC_GET_ARG1(call);
1596 if (i >= MAX_VIEWPORTS) {
1597 retval = EINVAL;
1598 break;
1599 }
1600 if (!viewports[i].initialized) {
1601 retval = EADDRNOTAVAIL;
1602 break;
1603 }
1604 viewports[i].initialized = false;
1605 if (viewports[i].glyphs)
1606 free(viewports[i].glyphs);
1607 if (viewports[i].bgpixel)
1608 free(viewports[i].bgpixel);
1609 if (viewports[i].backbuf)
1610 free(viewports[i].backbuf);
1611 retval = EOK;
1612 break;
1613 case FB_SET_STYLE:
1614 retval = fb_set_style(vport, IPC_GET_ARG1(call));
1615 break;
1616 case FB_SET_COLOR:
1617 retval = fb_set_color(vport, IPC_GET_ARG1(call),
1618 IPC_GET_ARG2(call), IPC_GET_ARG3(call));
1619 break;
1620 case FB_SET_RGB_COLOR:
1621 vport->attr.fg_color = IPC_GET_ARG1(call);
1622 vport->attr.bg_color = IPC_GET_ARG2(call);
1623 retval = EOK;
1624 break;
1625 case FB_GET_RESOLUTION:
1626 ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1627 continue;
1628 case FB_POINTER_MOVE:
1629 pointer_enabled = true;
1630 mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
1631 retval = EOK;
1632 break;
1633 default:
1634 retval = ENOENT;
1635 }
1636 ipc_answer_0(callid, retval);
1637 }
1638}
1639
1640/** Initialization of framebuffer
1641 *
1642 */
1643int fb_init(void)
1644{
1645 async_set_client_connection(fb_client_connection);
1646
1647 void *fb_ph_addr = (void *) sysinfo_value("fb.address.physical");
1648 unsigned int fb_offset = sysinfo_value("fb.offset");
1649 unsigned int fb_width = sysinfo_value("fb.width");
1650 unsigned int fb_height = sysinfo_value("fb.height");
1651 unsigned int fb_scanline = sysinfo_value("fb.scanline");
1652 unsigned int fb_visual = sysinfo_value("fb.visual");
1653
1654 unsigned int fbsize = fb_scanline * fb_height;
1655 void *fb_addr = as_get_mappable_page(fbsize);
1656
1657 physmem_map(fb_ph_addr + fb_offset, fb_addr,
1658 ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE);
1659
1660 if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1661 return 0;
1662
1663 return -1;
1664}
1665
1666/**
1667 * @}
1668 */
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