source: mainline/uspace/srv/fb/fb.c@ dd2cfa7

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since dd2cfa7 was 30885b9, checked in by Jakub Jermar <jakub@…>, 16 years ago

RGB conversion functions should work with a well-defined pixel format.
  • Property mode set to 100644
File size: 41.5 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#include <byteorder.h>
61
62#include "font-8x16.h"
63#include "fb.h"
64#include "main.h"
65#include "../console/screenbuffer.h"
66#include "ppm.h"
67
68#include "pointer.xbm"
69#include "pointer_mask.xbm"
70
71#define DEFAULT_BGCOLOR 0xf0f0f0
72#define DEFAULT_FGCOLOR 0x000000
73
74#define GLYPH_UNAVAIL '?'
75
76#define MAX_ANIM_LEN 8
77#define MAX_ANIMATIONS 4
78#define MAX_PIXMAPS 256 /**< Maximum number of saved pixmaps */
79#define MAX_VIEWPORTS 128 /**< Viewport is a rectangular area on the screen */
80
81/** Function to render a pixel from a RGB value. */
82typedef void (*rgb_conv_t)(void *, uint32_t);
83
84/** Function to render a bit mask. */
85typedef void (*mask_conv_t)(void *, bool);
86
87/** Function to draw a glyph. */
88typedef void (*dg_t)(unsigned int x, unsigned int y, bool cursor,
89 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
90
91struct {
92 uint8_t *fb_addr;
93
94 unsigned int xres;
95 unsigned int yres;
96
97 unsigned int scanline;
98 unsigned int glyphscanline;
99
100 unsigned int pixelbytes;
101 unsigned int glyphbytes;
102
103 /** Pre-rendered mask for rendering glyphs. Specific for the visual. */
104 uint8_t *glyphs;
105
106 rgb_conv_t rgb_conv;
107 mask_conv_t mask_conv;
108} screen;
109
110/** Backbuffer character cell. */
111typedef struct {
112 uint32_t glyph;
113 uint32_t fg_color;
114 uint32_t bg_color;
115} bb_cell_t;
116
117typedef struct {
118 bool initialized;
119 unsigned int x;
120 unsigned int y;
121 unsigned int width;
122 unsigned int height;
123
124 /* Text support in window */
125 unsigned int cols;
126 unsigned int rows;
127
128 /*
129 * Style and glyphs for text printing
130 */
131
132 /** Current attributes. */
133 attr_rgb_t attr;
134
135 uint8_t *bgpixel;
136
137 /**
138 * Glyph drawing function for this viewport. Different viewports
139 * might use different drawing functions depending on whether their
140 * scanlines are aligned on a word boundary.
141 */
142 dg_t dglyph;
143
144 /* Auto-cursor position */
145 bool cursor_active;
146 unsigned int cur_col;
147 unsigned int cur_row;
148 bool cursor_shown;
149
150 /* Back buffer */
151 bb_cell_t *backbuf;
152 unsigned int bbsize;
153} viewport_t;
154
155typedef struct {
156 bool initialized;
157 bool enabled;
158 unsigned int vp;
159
160 unsigned int pos;
161 unsigned int animlen;
162 unsigned int pixmaps[MAX_ANIM_LEN];
163} animation_t;
164
165static animation_t animations[MAX_ANIMATIONS];
166static bool anims_enabled;
167
168typedef struct {
169 unsigned int width;
170 unsigned int height;
171 uint8_t *data;
172} pixmap_t;
173
174static pixmap_t pixmaps[MAX_PIXMAPS];
175static viewport_t viewports[128];
176
177static bool client_connected = false; /**< Allow only 1 connection */
178
179static uint32_t color_table[16] = {
180 [COLOR_BLACK] = 0x000000,
181 [COLOR_BLUE] = 0x0000f0,
182 [COLOR_GREEN] = 0x00f000,
183 [COLOR_CYAN] = 0x00f0f0,
184 [COLOR_RED] = 0xf00000,
185 [COLOR_MAGENTA] = 0xf000f0,
186 [COLOR_YELLOW] = 0xf0f000,
187 [COLOR_WHITE] = 0xf0f0f0,
188
189 [8 + COLOR_BLACK] = 0x000000,
190 [8 + COLOR_BLUE] = 0x0000ff,
191 [8 + COLOR_GREEN] = 0x00ff00,
192 [8 + COLOR_CYAN] = 0x00ffff,
193 [8 + COLOR_RED] = 0xff0000,
194 [8 + COLOR_MAGENTA] = 0xff00ff,
195 [8 + COLOR_YELLOW] = 0xffff00,
196 [8 + COLOR_WHITE] = 0xffffff,
197};
198
199static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a);
200static int rgb_from_style(attr_rgb_t *rgb, int style);
201static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
202 ipcarg_t bg_color, ipcarg_t flags);
203
204static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
205 ipcarg_t bg_color, ipcarg_t attr);
206
207static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
208 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
209static void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
210 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
211
212static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
213 unsigned int row);
214
215
216#define RED(x, bits) (((x) >> (8 + 8 + 8 - (bits))) & ((1 << (bits)) - 1))
217#define GREEN(x, bits) (((x) >> (8 + 8 - (bits))) & ((1 << (bits)) - 1))
218#define BLUE(x, bits) (((x) >> (8 - (bits))) & ((1 << (bits)) - 1))
219
220#define COL2X(col) ((col) * FONT_WIDTH)
221#define ROW2Y(row) ((row) * FONT_SCANLINES)
222
223#define X2COL(x) ((x) / FONT_WIDTH)
224#define Y2ROW(y) ((y) / FONT_SCANLINES)
225
226#define FB_POS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
227#define BB_POS(vport, col, row) ((row) * vport->cols + (col))
228#define GLYPH_POS(glyph, y, cursor) (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
229
230/*
231 * RGB conversion and mask functions.
232 *
233 * These functions write an RGB value to some memory in some predefined format.
234 * The naming convention corresponds to the format created by these functions.
235 * The functions use the so called network order (i.e. big endian) with respect
236 * to their names.
237 */
238
239static void rgb_0888(void *dst, uint32_t rgb)
240{
241 *((uint32_t *) dst) = host2uint32_t_be((0 << 24) |
242 (RED(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | (BLUE(rgb, 8)));
243}
244
245static void bgr_0888(void *dst, uint32_t rgb)
246{
247 *((uint32_t *) dst) = host2uint32_t_be((0 << 24) |
248 (BLUE(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | (RED(rgb, 8)));
249}
250
251static void mask_0888(void *dst, bool mask)
252{
253 bgr_0888(dst, mask ? 0xffffff : 0);
254}
255
256static void rgb_8880(void *dst, uint32_t rgb)
257{
258 *((uint32_t *) dst) = host2uint32_t_be((RED(rgb, 8) << 24) |
259 (GREEN(rgb, 8) << 16) | (BLUE(rgb, 8) << 8) | 0);
260}
261
262static void bgr_8880(void *dst, uint32_t rgb)
263{
264 *((uint32_t *) dst) = host2uint32_t_be((BLUE(rgb, 8) << 24) |
265 (GREEN(rgb, 8) << 16) | (RED(rgb, 8) << 8) | 0);
266}
267
268static void mask_8880(void *dst, bool mask)
269{
270 bgr_8880(dst, mask ? 0xffffff : 0);
271}
272
273static void rgb_888(void *dst, uint32_t rgb)
274{
275 ((uint8_t *) dst)[0] = RED(rgb, 8);
276 ((uint8_t *) dst)[1] = GREEN(rgb, 8);
277 ((uint8_t *) dst)[2] = BLUE(rgb, 8);
278}
279
280static void bgr_888(void *dst, uint32_t rgb)
281{
282 ((uint8_t *) dst)[0] = BLUE(rgb, 8);
283 ((uint8_t *) dst)[1] = GREEN(rgb, 8);
284 ((uint8_t *) dst)[2] = RED(rgb, 8);
285}
286
287static void mask_888(void *dst, bool mask)
288{
289 bgr_888(dst, mask ? 0xffffff : 0);
290}
291
292static void bgr_555(void *dst, uint32_t rgb)
293{
294 uint8_t hi = (BLUE(rgb, 5) | (GREEN(rgb, 5) << 5)) & 0xff;
295 uint8_t lo = (GREEN(rgb, 5) >> 3) | (RED(rgb, 5) << 2);
296 *((uint16_t *) dst) = host2uint16_t_be((hi << 8) | lo);
297}
298
299static void mask_555(void *dst, bool mask)
300{
301 bgr_555(dst, mask ? 0xffffff : 0);
302}
303
304static void bgr_565(void *dst, uint32_t rgb)
305{
306 uint8_t hi = (BLUE(rgb, 5) | (GREEN(rgb, 6) << 5)) & 0xff;
307 uint8_t lo = (GREEN(rgb, 6) >> 3) | (RED(rgb, 5) << 3);
308 *((uint16_t *) dst) = host2uint16_t_be((hi << 8) | lo);
309}
310
311static void mask_565(void *dst, bool mask)
312{
313 bgr_565(dst, mask ? 0xffffff : 0);
314}
315
316static void bgr_323(void *dst, uint32_t rgb)
317{
318 *((uint8_t *) dst)
319 = ~((RED(rgb, 3) << 5) | (GREEN(rgb, 2) << 3) | BLUE(rgb, 3));
320}
321
322static void mask_323(void *dst, bool mask)
323{
324 bgr_323(dst, mask ? 0x0 : ~0x0);
325}
326
327/** Draw a filled rectangle.
328 *
329 * @note Need real implementation that does not access VRAM twice.
330 *
331 */
332static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
333 unsigned int y1, uint32_t color)
334{
335 unsigned int x;
336 unsigned int y;
337 unsigned int copy_bytes;
338
339 uint8_t *sp;
340 uint8_t *dp;
341 uint8_t cbuf[4];
342
343 if ((y0 >= y1) || (x0 >= x1))
344 return;
345
346 screen.rgb_conv(cbuf, color);
347
348 sp = &screen.fb_addr[FB_POS(x0, y0)];
349 dp = sp;
350
351 /* Draw the first line. */
352 for (x = x0; x < x1; x++) {
353 memcpy(dp, cbuf, screen.pixelbytes);
354 dp += screen.pixelbytes;
355 }
356
357 dp = sp + screen.scanline;
358 copy_bytes = (x1 - x0) * screen.pixelbytes;
359
360 /* Draw the remaining lines by copying. */
361 for (y = y0 + 1; y < y1; y++) {
362 memcpy(dp, sp, copy_bytes);
363 dp += screen.scanline;
364 }
365}
366
367/** Redraw viewport.
368 *
369 * @param vport Viewport to redraw
370 *
371 */
372static void vport_redraw(viewport_t *vport)
373{
374 unsigned int col;
375 unsigned int row;
376
377 for (row = 0; row < vport->rows; row++) {
378 for (col = 0; col < vport->cols; col++) {
379 draw_vp_glyph(vport, false, col, row);
380 }
381 }
382
383 if (COL2X(vport->cols) < vport->width) {
384 draw_filled_rect(
385 vport->x + COL2X(vport->cols), vport->y,
386 vport->x + vport->width, vport->y + vport->height,
387 vport->attr.bg_color);
388 }
389
390 if (ROW2Y(vport->rows) < vport->height) {
391 draw_filled_rect(
392 vport->x, vport->y + ROW2Y(vport->rows),
393 vport->x + vport->width, vport->y + vport->height,
394 vport->attr.bg_color);
395 }
396}
397
398static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
399 uint32_t bg_color)
400{
401 size_t i;
402
403 for (i = 0; i < len; i++) {
404 backbuf[i].glyph = 0;
405 backbuf[i].fg_color = fg_color;
406 backbuf[i].bg_color = bg_color;
407 }
408}
409
410/** Clear viewport.
411 *
412 * @param vport Viewport to clear
413 *
414 */
415static void vport_clear(viewport_t *vport)
416{
417 backbuf_clear(vport->backbuf, vport->cols * vport->rows,
418 vport->attr.fg_color, vport->attr.bg_color);
419 vport_redraw(vport);
420}
421
422/** Scroll viewport by the specified number of lines.
423 *
424 * @param vport Viewport to scroll
425 * @param lines Number of lines to scroll
426 *
427 */
428static void vport_scroll(viewport_t *vport, int lines)
429{
430 unsigned int col;
431 unsigned int row;
432 unsigned int x;
433 unsigned int y;
434 uint32_t glyph;
435 uint32_t fg_color;
436 uint32_t bg_color;
437 bb_cell_t *bbp;
438 bb_cell_t *xbp;
439
440 /*
441 * Redraw.
442 */
443
444 y = vport->y;
445 for (row = 0; row < vport->rows; row++) {
446 x = vport->x;
447 for (col = 0; col < vport->cols; col++) {
448 if (((int) row + lines >= 0) &&
449 ((int) row + lines < (int) vport->rows)) {
450 xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
451 bbp = &vport->backbuf[BB_POS(vport, col, row)];
452
453 glyph = xbp->glyph;
454 fg_color = xbp->fg_color;
455 bg_color = xbp->bg_color;
456
457 if ((bbp->glyph == glyph)
458 && (bbp->fg_color == xbp->fg_color)
459 && (bbp->bg_color == xbp->bg_color)) {
460 x += FONT_WIDTH;
461 continue;
462 }
463 } else {
464 glyph = 0;
465 fg_color = vport->attr.fg_color;
466 bg_color = vport->attr.bg_color;
467 }
468
469 (*vport->dglyph)(x, y, false, screen.glyphs, glyph,
470 fg_color, bg_color);
471 x += FONT_WIDTH;
472 }
473 y += FONT_SCANLINES;
474 }
475
476 /*
477 * Scroll backbuffer.
478 */
479
480 if (lines > 0) {
481 memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
482 vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
483 backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
484 vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
485 } else {
486 memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
487 vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
488 backbuf_clear(vport->backbuf, - vport->cols * lines,
489 vport->attr.fg_color, vport->attr.bg_color);
490 }
491}
492
493/** Render glyphs
494 *
495 * Convert glyphs from device independent font
496 * description to current visual representation.
497 *
498 */
499static void render_glyphs(void)
500{
501 unsigned int glyph;
502
503 for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
504 unsigned int y;
505
506 for (y = 0; y < FONT_SCANLINES; y++) {
507 unsigned int x;
508
509 for (x = 0; x < FONT_WIDTH; x++) {
510 screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
511 (fb_font[glyph][y] & (1 << (7 - x))) ? true : false);
512
513 screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
514 (fb_font[glyph][y] & (1 << (7 - x))) ? false : true);
515 }
516 }
517 }
518}
519
520/** Create new viewport
521 *
522 * @param x Origin of the viewport (x).
523 * @param y Origin of the viewport (y).
524 * @param width Width of the viewport.
525 * @param height Height of the viewport.
526 *
527 * @return New viewport number.
528 *
529 */
530static int vport_create(unsigned int x, unsigned int y,
531 unsigned int width, unsigned int height)
532{
533 unsigned int i;
534
535 for (i = 0; i < MAX_VIEWPORTS; i++) {
536 if (!viewports[i].initialized)
537 break;
538 }
539
540 if (i == MAX_VIEWPORTS)
541 return ELIMIT;
542
543 unsigned int cols = width / FONT_WIDTH;
544 unsigned int rows = height / FONT_SCANLINES;
545 unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
546 unsigned int word_size = sizeof(unsigned long);
547
548 bb_cell_t *backbuf = (bb_cell_t *) malloc(bbsize);
549 if (!backbuf)
550 return ENOMEM;
551
552 uint8_t *bgpixel = (uint8_t *) malloc(screen.pixelbytes);
553 if (!bgpixel) {
554 free(backbuf);
555 return ENOMEM;
556 }
557
558 backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
559 memset(bgpixel, 0, screen.pixelbytes);
560
561 viewports[i].x = x;
562 viewports[i].y = y;
563 viewports[i].width = width;
564 viewports[i].height = height;
565
566 viewports[i].cols = cols;
567 viewports[i].rows = rows;
568
569 viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
570 viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
571
572 viewports[i].bgpixel = bgpixel;
573
574 /*
575 * Conditions necessary to select aligned version:
576 * - word size is divisible by pixelbytes
577 * - cell scanline size is divisible by word size
578 * - cell scanlines are word-aligned
579 *
580 */
581 if (((word_size % screen.pixelbytes) == 0)
582 && ((FONT_WIDTH * screen.pixelbytes) % word_size == 0)
583 && ((x * screen.pixelbytes) % word_size == 0)
584 && (screen.scanline % word_size == 0)) {
585 viewports[i].dglyph = draw_glyph_aligned;
586 } else {
587 viewports[i].dglyph = draw_glyph_fallback;
588 }
589
590 viewports[i].cur_col = 0;
591 viewports[i].cur_row = 0;
592 viewports[i].cursor_active = false;
593 viewports[i].cursor_shown = false;
594
595 viewports[i].bbsize = bbsize;
596 viewports[i].backbuf = backbuf;
597
598 viewports[i].initialized = true;
599
600 screen.rgb_conv(viewports[i].bgpixel, viewports[i].attr.bg_color);
601
602 return i;
603}
604
605
606/** Initialize framebuffer as a chardev output device
607 *
608 * @param addr Address of the framebuffer
609 * @param xres Screen width in pixels
610 * @param yres Screen height in pixels
611 * @param visual Bits per pixel (8, 16, 24, 32)
612 * @param scan Bytes per one scanline
613 *
614 */
615static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
616 unsigned int scan, unsigned int visual)
617{
618 switch (visual) {
619 case VISUAL_INDIRECT_8:
620 screen.rgb_conv = bgr_323;
621 screen.mask_conv = mask_323;
622 screen.pixelbytes = 1;
623 break;
624 case VISUAL_BGR_5_5_5:
625 screen.rgb_conv = bgr_555;
626 screen.mask_conv = mask_555;
627 screen.pixelbytes = 2;
628 break;
629 case VISUAL_BGR_5_6_5:
630 screen.rgb_conv = bgr_565;
631 screen.mask_conv = mask_565;
632 screen.pixelbytes = 2;
633 break;
634 case VISUAL_RGB_8_8_8:
635 screen.rgb_conv = rgb_888;
636 screen.mask_conv = mask_888;
637 screen.pixelbytes = 3;
638 break;
639 case VISUAL_BGR_8_8_8:
640 screen.rgb_conv = bgr_888;
641 screen.mask_conv = mask_888;
642 screen.pixelbytes = 3;
643 break;
644 case VISUAL_RGB_8_8_8_0:
645 screen.rgb_conv = rgb_8880;
646 screen.mask_conv = mask_8880;
647 screen.pixelbytes = 4;
648 break;
649 case VISUAL_RGB_0_8_8_8:
650 screen.rgb_conv = rgb_0888;
651 screen.mask_conv = mask_0888;
652 screen.pixelbytes = 4;
653 break;
654 case VISUAL_BGR_0_8_8_8:
655 screen.rgb_conv = bgr_0888;
656 screen.mask_conv = mask_0888;
657 screen.pixelbytes = 4;
658 break;
659 case VISUAL_BGR_8_8_8_0:
660 screen.rgb_conv = bgr_8880;
661 screen.mask_conv = mask_8880;
662 screen.pixelbytes = 4;
663 break;
664 default:
665 return false;
666 }
667
668 screen.fb_addr = (unsigned char *) addr;
669 screen.xres = xres;
670 screen.yres = yres;
671 screen.scanline = scan;
672
673 screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
674 screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
675
676 size_t glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
677 uint8_t *glyphs = (uint8_t *) malloc(glyphsize);
678 if (!glyphs)
679 return false;
680
681 memset(glyphs, 0, glyphsize);
682 screen.glyphs = glyphs;
683
684 render_glyphs();
685
686 /* Create first viewport */
687 vport_create(0, 0, xres, yres);
688
689 return true;
690}
691
692
693/** Draw a glyph, takes advantage of alignment.
694 *
695 * This version can only be used if the following conditions are met:
696 *
697 * - word size is divisible by pixelbytes
698 * - cell scanline size is divisible by word size
699 * - cell scanlines are word-aligned
700 *
701 * It makes use of the pre-rendered mask to process (possibly) several
702 * pixels at once (word size / pixelbytes pixels at a time are processed)
703 * making it very fast. Most notably this version is not applicable at 24 bits
704 * per pixel.
705 *
706 * @param x x coordinate of top-left corner on screen.
707 * @param y y coordinate of top-left corner on screen.
708 * @param cursor Draw glyph with cursor
709 * @param glyphs Pointer to font bitmap.
710 * @param glyph Code of the glyph to draw.
711 * @param fg_color Foreground color.
712 * @param bg_color Backgroudn color.
713 *
714 */
715static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
716 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
717{
718 unsigned int i;
719 unsigned int yd;
720 unsigned long fg_buf;
721 unsigned long bg_buf;
722 unsigned long mask;
723
724 /*
725 * Prepare a pair of words, one filled with foreground-color
726 * pattern and the other filled with background-color pattern.
727 */
728 for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
729 screen.rgb_conv(&((uint8_t *) &fg_buf)[i * screen.pixelbytes],
730 fg_color);
731 screen.rgb_conv(&((uint8_t *) &bg_buf)[i * screen.pixelbytes],
732 bg_color);
733 }
734
735 /* Pointer to the current position in the mask. */
736 unsigned long *maskp = (unsigned long *) &glyphs[GLYPH_POS(glyph, 0, cursor)];
737
738 /* Pointer to the current position on the screen. */
739 unsigned long *dp = (unsigned long *) &screen.fb_addr[FB_POS(x, y)];
740
741 /* Width of the character cell in words. */
742 unsigned int ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
743
744 /* Offset to add when moving to another screen scanline. */
745 unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
746
747 for (yd = 0; yd < FONT_SCANLINES; yd++) {
748 /*
749 * Now process the cell scanline, combining foreground
750 * and background color patters using the pre-rendered mask.
751 */
752 for (i = 0; i < ww; i++) {
753 mask = *maskp++;
754 *dp++ = (fg_buf & mask) | (bg_buf & ~mask);
755 }
756
757 /* Move to the beginning of the next scanline of the cell. */
758 dp = (unsigned long *) ((uint8_t *) dp + d_add);
759 }
760}
761
762/** Draw a glyph, fallback version.
763 *
764 * This version does not make use of the pre-rendered mask, it uses
765 * the font bitmap directly. It works always, but it is slower.
766 *
767 * @param x x coordinate of top-left corner on screen.
768 * @param y y coordinate of top-left corner on screen.
769 * @param cursor Draw glyph with cursor
770 * @param glyphs Pointer to font bitmap.
771 * @param glyph Code of the glyph to draw.
772 * @param fg_color Foreground color.
773 * @param bg_color Backgroudn color.
774 *
775 */
776void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
777 uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
778{
779 unsigned int i;
780 unsigned int j;
781 unsigned int yd;
782 uint8_t fg_buf[4];
783 uint8_t bg_buf[4];
784 uint8_t *sp;
785 uint8_t b;
786
787 /* Pre-render 1x the foreground and background color pixels. */
788 if (cursor) {
789 screen.rgb_conv(fg_buf, bg_color);
790 screen.rgb_conv(bg_buf, fg_color);
791 } else {
792 screen.rgb_conv(fg_buf, fg_color);
793 screen.rgb_conv(bg_buf, bg_color);
794 }
795
796 /* Pointer to the current position on the screen. */
797 uint8_t *dp = (uint8_t *) &screen.fb_addr[FB_POS(x, y)];
798
799 /* Offset to add when moving to another screen scanline. */
800 unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
801
802 for (yd = 0; yd < FONT_SCANLINES; yd++) {
803 /* Byte containing bits of the glyph scanline. */
804 b = fb_font[glyph][yd];
805
806 for (i = 0; i < FONT_WIDTH; i++) {
807 /* Choose color based on the current bit. */
808 sp = (b & 0x80) ? fg_buf : bg_buf;
809
810 /* Copy the pixel. */
811 for (j = 0; j < screen.pixelbytes; j++) {
812 *dp++ = *sp++;
813 }
814
815 /* Move to the next bit. */
816 b = b << 1;
817 }
818
819 /* Move to the beginning of the next scanline of the cell. */
820 dp += d_add;
821 }
822}
823
824/** Draw glyph at specified position in viewport.
825 *
826 * @param vport Viewport identification
827 * @param cursor Draw glyph with cursor
828 * @param col Screen position relative to viewport
829 * @param row Screen position relative to viewport
830 *
831 */
832static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
833 unsigned int row)
834{
835 unsigned int x = vport->x + COL2X(col);
836 unsigned int y = vport->y + ROW2Y(row);
837
838 uint32_t glyph = vport->backbuf[BB_POS(vport, col, row)].glyph;
839 uint32_t fg_color = vport->backbuf[BB_POS(vport, col, row)].fg_color;
840 uint32_t bg_color = vport->backbuf[BB_POS(vport, col, row)].bg_color;
841
842 (*vport->dglyph)(x, y, cursor, screen.glyphs, glyph,
843 fg_color, bg_color);
844}
845
846/** Hide cursor if it is shown
847 *
848 */
849static void cursor_hide(viewport_t *vport)
850{
851 if ((vport->cursor_active) && (vport->cursor_shown)) {
852 draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
853 vport->cursor_shown = false;
854 }
855}
856
857
858/** Show cursor if cursor showing is enabled
859 *
860 */
861static void cursor_show(viewport_t *vport)
862{
863 /* Do not check for cursor_shown */
864 if (vport->cursor_active) {
865 draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
866 vport->cursor_shown = true;
867 }
868}
869
870
871/** Invert cursor, if it is enabled
872 *
873 */
874static void cursor_blink(viewport_t *vport)
875{
876 if (vport->cursor_shown)
877 cursor_hide(vport);
878 else
879 cursor_show(vport);
880}
881
882
883/** Draw character at given position relative to viewport
884 *
885 * @param vport Viewport identification
886 * @param c Character to draw
887 * @param col Screen position relative to viewport
888 * @param row Screen position relative to viewport
889 *
890 */
891static void draw_char(viewport_t *vport, wchar_t c, unsigned int col, unsigned int row)
892{
893 bb_cell_t *bbp;
894
895 /* Do not hide cursor if we are going to overwrite it */
896 if ((vport->cursor_active) && (vport->cursor_shown) &&
897 ((vport->cur_col != col) || (vport->cur_row != row)))
898 cursor_hide(vport);
899
900 bbp = &vport->backbuf[BB_POS(vport, col, row)];
901 bbp->glyph = fb_font_glyph(c);
902 bbp->fg_color = vport->attr.fg_color;
903 bbp->bg_color = vport->attr.bg_color;
904
905 draw_vp_glyph(vport, false, col, row);
906
907 vport->cur_col = col;
908 vport->cur_row = row;
909
910 vport->cur_col++;
911 if (vport->cur_col >= vport->cols) {
912 vport->cur_col = 0;
913 vport->cur_row++;
914 if (vport->cur_row >= vport->rows)
915 vport->cur_row--;
916 }
917
918 cursor_show(vport);
919}
920
921/** Draw text data to viewport.
922 *
923 * @param vport Viewport id
924 * @param data Text data.
925 * @param x Leftmost column of the area.
926 * @param y Topmost row of the area.
927 * @param w Number of rows.
928 * @param h Number of columns.
929 *
930 */
931static void draw_text_data(viewport_t *vport, keyfield_t *data, unsigned int x,
932 unsigned int y, unsigned int w, unsigned int h)
933{
934 unsigned int i;
935 unsigned int j;
936 bb_cell_t *bbp;
937 attrs_t *a;
938 attr_rgb_t rgb;
939
940 for (j = 0; j < h; j++) {
941 for (i = 0; i < w; i++) {
942 unsigned int col = x + i;
943 unsigned int row = y + j;
944
945 bbp = &vport->backbuf[BB_POS(vport, col, row)];
946
947 a = &data[j * w + i].attrs;
948 rgb_from_attr(&rgb, a);
949
950 bbp->glyph = fb_font_glyph(data[j * w + i].character);
951 bbp->fg_color = rgb.fg_color;
952 bbp->bg_color = rgb.bg_color;
953
954 draw_vp_glyph(vport, false, col, row);
955 }
956 }
957 cursor_show(vport);
958}
959
960
961static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
962{
963 int pm = *((int *) data);
964 pixmap_t *pmap = &pixmaps[pm];
965 unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
966
967 screen.rgb_conv(&pmap->data[pos], color);
968}
969
970
971static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
972{
973 viewport_t *vport = (viewport_t *) data;
974 unsigned int dx = vport->x + x;
975 unsigned int dy = vport->y + y;
976
977 screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
978}
979
980
981/** Return first free pixmap
982 *
983 */
984static int find_free_pixmap(void)
985{
986 unsigned int i;
987
988 for (i = 0; i < MAX_PIXMAPS; i++)
989 if (!pixmaps[i].data)
990 return i;
991
992 return -1;
993}
994
995
996/** Create a new pixmap and return appropriate ID
997 *
998 */
999static int shm2pixmap(unsigned char *shm, size_t size)
1000{
1001 int pm;
1002 pixmap_t *pmap;
1003
1004 pm = find_free_pixmap();
1005 if (pm == -1)
1006 return ELIMIT;
1007
1008 pmap = &pixmaps[pm];
1009
1010 if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
1011 return EINVAL;
1012
1013 pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
1014 if (!pmap->data)
1015 return ENOMEM;
1016
1017 ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
1018
1019 return pm;
1020}
1021
1022
1023/** Handle shared memory communication calls
1024 *
1025 * Protocol for drawing pixmaps:
1026 * - FB_PREPARE_SHM(client shm identification)
1027 * - IPC_M_AS_AREA_SEND
1028 * - FB_DRAW_PPM(startx, starty)
1029 * - FB_DROP_SHM
1030 *
1031 * Protocol for text drawing
1032 * - IPC_M_AS_AREA_SEND
1033 * - FB_DRAW_TEXT_DATA
1034 *
1035 * @param callid Callid of the current call
1036 * @param call Current call data
1037 * @param vp Active viewport
1038 *
1039 * @return false if the call was not handled byt this function, true otherwise
1040 *
1041 * Note: this function is not thread-safe, you would have
1042 * to redefine static variables with fibril_local.
1043 *
1044 */
1045static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1046{
1047 static keyfield_t *interbuffer = NULL;
1048 static size_t intersize = 0;
1049
1050 static unsigned char *shm = NULL;
1051 static ipcarg_t shm_id = 0;
1052 static size_t shm_size;
1053
1054 bool handled = true;
1055 int retval = EOK;
1056 viewport_t *vport = &viewports[vp];
1057 unsigned int x;
1058 unsigned int y;
1059 unsigned int w;
1060 unsigned int h;
1061
1062 switch (IPC_GET_METHOD(*call)) {
1063 case IPC_M_SHARE_OUT:
1064 /* We accept one area for data interchange */
1065 if (IPC_GET_ARG1(*call) == shm_id) {
1066 void *dest = as_get_mappable_page(IPC_GET_ARG2(*call));
1067 shm_size = IPC_GET_ARG2(*call);
1068 if (ipc_answer_1(callid, EOK, (sysarg_t) dest)) {
1069 shm_id = 0;
1070 return false;
1071 }
1072 shm = dest;
1073
1074 if (shm[0] != 'P')
1075 return false;
1076
1077 return true;
1078 } else {
1079 intersize = IPC_GET_ARG2(*call);
1080 receive_comm_area(callid, call, (void *) &interbuffer);
1081 }
1082 return true;
1083 case FB_PREPARE_SHM:
1084 if (shm_id)
1085 retval = EBUSY;
1086 else
1087 shm_id = IPC_GET_ARG1(*call);
1088 break;
1089
1090 case FB_DROP_SHM:
1091 if (shm) {
1092 as_area_destroy(shm);
1093 shm = NULL;
1094 }
1095 shm_id = 0;
1096 break;
1097
1098 case FB_SHM2PIXMAP:
1099 if (!shm) {
1100 retval = EINVAL;
1101 break;
1102 }
1103 retval = shm2pixmap(shm, shm_size);
1104 break;
1105 case FB_DRAW_PPM:
1106 if (!shm) {
1107 retval = EINVAL;
1108 break;
1109 }
1110 x = IPC_GET_ARG1(*call);
1111 y = IPC_GET_ARG2(*call);
1112
1113 if ((x > vport->width) || (y > vport->height)) {
1114 retval = EINVAL;
1115 break;
1116 }
1117
1118 ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
1119 IPC_GET_ARG2(*call), vport->width - x, vport->height - y, putpixel, (void *) vport);
1120 break;
1121 case FB_DRAW_TEXT_DATA:
1122 x = IPC_GET_ARG1(*call);
1123 y = IPC_GET_ARG2(*call);
1124 w = IPC_GET_ARG3(*call);
1125 h = IPC_GET_ARG4(*call);
1126 if (!interbuffer) {
1127 retval = EINVAL;
1128 break;
1129 }
1130 if (x + w > vport->cols || y + h > vport->rows) {
1131 retval = EINVAL;
1132 break;
1133 }
1134 if (intersize < w * h * sizeof(*interbuffer)) {
1135 retval = EINVAL;
1136 break;
1137 }
1138 draw_text_data(vport, interbuffer, x, y, w, h);
1139 break;
1140 default:
1141 handled = false;
1142 }
1143
1144 if (handled)
1145 ipc_answer_0(callid, retval);
1146 return handled;
1147}
1148
1149
1150static void copy_vp_to_pixmap(viewport_t *vport, pixmap_t *pmap)
1151{
1152 unsigned int width = vport->width;
1153 unsigned int height = vport->height;
1154
1155 if (width + vport->x > screen.xres)
1156 width = screen.xres - vport->x;
1157 if (height + vport->y > screen.yres)
1158 height = screen.yres - vport->y;
1159
1160 unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1161 unsigned int realheight = pmap->height <= height ? pmap->height : height;
1162
1163 unsigned int srcrowsize = vport->width * screen.pixelbytes;
1164 unsigned int realrowsize = realwidth * screen.pixelbytes;
1165
1166 unsigned int y;
1167 for (y = 0; y < realheight; y++) {
1168 unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1169 memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1170 }
1171}
1172
1173
1174/** Save viewport to pixmap
1175 *
1176 */
1177static int save_vp_to_pixmap(viewport_t *vport)
1178{
1179 int pm;
1180 pixmap_t *pmap;
1181
1182 pm = find_free_pixmap();
1183 if (pm == -1)
1184 return ELIMIT;
1185
1186 pmap = &pixmaps[pm];
1187 pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
1188 if (!pmap->data)
1189 return ENOMEM;
1190
1191 pmap->width = vport->width;
1192 pmap->height = vport->height;
1193
1194 copy_vp_to_pixmap(vport, pmap);
1195
1196 return pm;
1197}
1198
1199
1200/** Draw pixmap on screen
1201 *
1202 * @param vp Viewport to draw on
1203 * @param pm Pixmap identifier
1204 *
1205 */
1206static int draw_pixmap(int vp, int pm)
1207{
1208 pixmap_t *pmap = &pixmaps[pm];
1209 viewport_t *vport = &viewports[vp];
1210
1211 unsigned int width = vport->width;
1212 unsigned int height = vport->height;
1213
1214 if (width + vport->x > screen.xres)
1215 width = screen.xres - vport->x;
1216 if (height + vport->y > screen.yres)
1217 height = screen.yres - vport->y;
1218
1219 if (!pmap->data)
1220 return EINVAL;
1221
1222 unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1223 unsigned int realheight = pmap->height <= height ? pmap->height : height;
1224
1225 unsigned int srcrowsize = vport->width * screen.pixelbytes;
1226 unsigned int realrowsize = realwidth * screen.pixelbytes;
1227
1228 unsigned int y;
1229 for (y = 0; y < realheight; y++) {
1230 unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1231 memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1232 }
1233
1234 return EOK;
1235}
1236
1237
1238/** Tick animation one step forward
1239 *
1240 */
1241static void anims_tick(void)
1242{
1243 unsigned int i;
1244 static int counts = 0;
1245
1246 /* Limit redrawing */
1247 counts = (counts + 1) % 8;
1248 if (counts)
1249 return;
1250
1251 for (i = 0; i < MAX_ANIMATIONS; i++) {
1252 if ((!animations[i].animlen) || (!animations[i].initialized) ||
1253 (!animations[i].enabled))
1254 continue;
1255
1256 draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
1257 animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1258 }
1259}
1260
1261
1262static unsigned int pointer_x;
1263static unsigned int pointer_y;
1264static bool pointer_shown, pointer_enabled;
1265static int pointer_vport = -1;
1266static int pointer_pixmap = -1;
1267
1268
1269static void mouse_show(void)
1270{
1271 int i, j;
1272 int visibility;
1273 int color;
1274 int bytepos;
1275
1276 if ((pointer_shown) || (!pointer_enabled))
1277 return;
1278
1279 /* Save image under the pointer. */
1280 if (pointer_vport == -1) {
1281 pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1282 if (pointer_vport < 0)
1283 return;
1284 } else {
1285 viewports[pointer_vport].x = pointer_x;
1286 viewports[pointer_vport].y = pointer_y;
1287 }
1288
1289 if (pointer_pixmap == -1)
1290 pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
1291 else
1292 copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
1293
1294 /* Draw mouse pointer. */
1295 for (i = 0; i < pointer_height; i++)
1296 for (j = 0; j < pointer_width; j++) {
1297 bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
1298 visibility = pointer_mask_bits[bytepos] &
1299 (1 << (j % 8));
1300 if (visibility) {
1301 color = pointer_bits[bytepos] &
1302 (1 << (j % 8)) ? 0 : 0xffffff;
1303 if (pointer_x + j < screen.xres && pointer_y +
1304 i < screen.yres)
1305 putpixel(&viewports[0], pointer_x + j,
1306 pointer_y + i, color);
1307 }
1308 }
1309 pointer_shown = 1;
1310}
1311
1312
1313static void mouse_hide(void)
1314{
1315 /* Restore image under the pointer. */
1316 if (pointer_shown) {
1317 draw_pixmap(pointer_vport, pointer_pixmap);
1318 pointer_shown = 0;
1319 }
1320}
1321
1322
1323static void mouse_move(unsigned int x, unsigned int y)
1324{
1325 mouse_hide();
1326 pointer_x = x;
1327 pointer_y = y;
1328 mouse_show();
1329}
1330
1331
1332static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1333{
1334 bool handled = true;
1335 int retval = EOK;
1336 int i, nvp;
1337 int newval;
1338
1339 switch (IPC_GET_METHOD(*call)) {
1340 case FB_ANIM_CREATE:
1341 nvp = IPC_GET_ARG1(*call);
1342 if (nvp == -1)
1343 nvp = vp;
1344 if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1345 !viewports[nvp].initialized) {
1346 retval = EINVAL;
1347 break;
1348 }
1349 for (i = 0; i < MAX_ANIMATIONS; i++) {
1350 if (!animations[i].initialized)
1351 break;
1352 }
1353 if (i == MAX_ANIMATIONS) {
1354 retval = ELIMIT;
1355 break;
1356 }
1357 animations[i].initialized = 1;
1358 animations[i].animlen = 0;
1359 animations[i].pos = 0;
1360 animations[i].enabled = 0;
1361 animations[i].vp = nvp;
1362 retval = i;
1363 break;
1364 case FB_ANIM_DROP:
1365 i = IPC_GET_ARG1(*call);
1366 if (i >= MAX_ANIMATIONS || i < 0) {
1367 retval = EINVAL;
1368 break;
1369 }
1370 animations[i].initialized = 0;
1371 break;
1372 case FB_ANIM_ADDPIXMAP:
1373 i = IPC_GET_ARG1(*call);
1374 if (i >= MAX_ANIMATIONS || i < 0 ||
1375 !animations[i].initialized) {
1376 retval = EINVAL;
1377 break;
1378 }
1379 if (animations[i].animlen == MAX_ANIM_LEN) {
1380 retval = ELIMIT;
1381 break;
1382 }
1383 newval = IPC_GET_ARG2(*call);
1384 if (newval < 0 || newval > MAX_PIXMAPS ||
1385 !pixmaps[newval].data) {
1386 retval = EINVAL;
1387 break;
1388 }
1389 animations[i].pixmaps[animations[i].animlen++] = newval;
1390 break;
1391 case FB_ANIM_CHGVP:
1392 i = IPC_GET_ARG1(*call);
1393 if (i >= MAX_ANIMATIONS || i < 0) {
1394 retval = EINVAL;
1395 break;
1396 }
1397 nvp = IPC_GET_ARG2(*call);
1398 if (nvp == -1)
1399 nvp = vp;
1400 if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1401 !viewports[nvp].initialized) {
1402 retval = EINVAL;
1403 break;
1404 }
1405 animations[i].vp = nvp;
1406 break;
1407 case FB_ANIM_START:
1408 case FB_ANIM_STOP:
1409 i = IPC_GET_ARG1(*call);
1410 if (i >= MAX_ANIMATIONS || i < 0) {
1411 retval = EINVAL;
1412 break;
1413 }
1414 newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
1415 if (newval ^ animations[i].enabled) {
1416 animations[i].enabled = newval;
1417 anims_enabled += newval ? 1 : -1;
1418 }
1419 break;
1420 default:
1421 handled = 0;
1422 }
1423 if (handled)
1424 ipc_answer_0(callid, retval);
1425 return handled;
1426}
1427
1428
1429/** Handler for messages concerning pixmap handling
1430 *
1431 */
1432static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1433{
1434 bool handled = true;
1435 int retval = EOK;
1436 int i, nvp;
1437
1438 switch (IPC_GET_METHOD(*call)) {
1439 case FB_VP_DRAW_PIXMAP:
1440 nvp = IPC_GET_ARG1(*call);
1441 if (nvp == -1)
1442 nvp = vp;
1443 if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1444 !viewports[nvp].initialized) {
1445 retval = EINVAL;
1446 break;
1447 }
1448 i = IPC_GET_ARG2(*call);
1449 retval = draw_pixmap(nvp, i);
1450 break;
1451 case FB_VP2PIXMAP:
1452 nvp = IPC_GET_ARG1(*call);
1453 if (nvp == -1)
1454 nvp = vp;
1455 if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1456 !viewports[nvp].initialized)
1457 retval = EINVAL;
1458 else
1459 retval = save_vp_to_pixmap(&viewports[nvp]);
1460 break;
1461 case FB_DROP_PIXMAP:
1462 i = IPC_GET_ARG1(*call);
1463 if (i >= MAX_PIXMAPS) {
1464 retval = EINVAL;
1465 break;
1466 }
1467 if (pixmaps[i].data) {
1468 free(pixmaps[i].data);
1469 pixmaps[i].data = NULL;
1470 }
1471 break;
1472 default:
1473 handled = 0;
1474 }
1475
1476 if (handled)
1477 ipc_answer_0(callid, retval);
1478 return handled;
1479
1480}
1481
1482static int rgb_from_style(attr_rgb_t *rgb, int style)
1483{
1484 switch (style) {
1485 case STYLE_NORMAL:
1486 rgb->fg_color = color_table[COLOR_BLACK];
1487 rgb->bg_color = color_table[COLOR_WHITE];
1488 break;
1489 case STYLE_EMPHASIS:
1490 rgb->fg_color = color_table[COLOR_RED];
1491 rgb->bg_color = color_table[COLOR_WHITE];
1492 break;
1493 default:
1494 return EINVAL;
1495 }
1496
1497 return EOK;
1498}
1499
1500static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
1501 ipcarg_t bg_color, ipcarg_t flags)
1502{
1503 fg_color = (fg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1504 bg_color = (bg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1505
1506 rgb->fg_color = color_table[fg_color];
1507 rgb->bg_color = color_table[bg_color];
1508
1509 return EOK;
1510}
1511
1512static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a)
1513{
1514 int rc;
1515
1516 switch (a->t) {
1517 case at_style:
1518 rc = rgb_from_style(rgb, a->a.s.style);
1519 break;
1520 case at_idx:
1521 rc = rgb_from_idx(rgb, a->a.i.fg_color,
1522 a->a.i.bg_color, a->a.i.flags);
1523 break;
1524 case at_rgb:
1525 *rgb = a->a.r;
1526 rc = EOK;
1527 break;
1528 }
1529
1530 return rc;
1531}
1532
1533static int fb_set_style(viewport_t *vport, ipcarg_t style)
1534{
1535 return rgb_from_style(&vport->attr, (int) style);
1536}
1537
1538static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
1539 ipcarg_t bg_color, ipcarg_t flags)
1540{
1541 return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
1542}
1543
1544/** Function for handling connections to FB
1545 *
1546 */
1547static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1548{
1549 unsigned int vp = 0;
1550 viewport_t *vport = &viewports[vp];
1551
1552 if (client_connected) {
1553 ipc_answer_0(iid, ELIMIT);
1554 return;
1555 }
1556
1557 /* Accept connection */
1558 client_connected = true;
1559 ipc_answer_0(iid, EOK);
1560
1561 while (true) {
1562 ipc_callid_t callid;
1563 ipc_call_t call;
1564 int retval;
1565 unsigned int i;
1566 int scroll;
1567 wchar_t ch;
1568 unsigned int col, row;
1569
1570 if ((vport->cursor_active) || (anims_enabled))
1571 callid = async_get_call_timeout(&call, 250000);
1572 else
1573 callid = async_get_call(&call);
1574
1575 mouse_hide();
1576 if (!callid) {
1577 cursor_blink(vport);
1578 anims_tick();
1579 mouse_show();
1580 continue;
1581 }
1582
1583 if (shm_handle(callid, &call, vp))
1584 continue;
1585
1586 if (pixmap_handle(callid, &call, vp))
1587 continue;
1588
1589 if (anim_handle(callid, &call, vp))
1590 continue;
1591
1592 switch (IPC_GET_METHOD(call)) {
1593 case IPC_M_PHONE_HUNGUP:
1594 client_connected = false;
1595
1596 /* Cleanup other viewports */
1597 for (i = 1; i < MAX_VIEWPORTS; i++)
1598 vport->initialized = false;
1599
1600 /* Exit thread */
1601 return;
1602
1603 case FB_PUTCHAR:
1604 ch = IPC_GET_ARG1(call);
1605 col = IPC_GET_ARG2(call);
1606 row = IPC_GET_ARG3(call);
1607
1608 if ((col >= vport->cols) || (row >= vport->rows)) {
1609 retval = EINVAL;
1610 break;
1611 }
1612 ipc_answer_0(callid, EOK);
1613
1614 draw_char(vport, ch, col, row);
1615
1616 /* Message already answered */
1617 continue;
1618 case FB_CLEAR:
1619 vport_clear(vport);
1620 cursor_show(vport);
1621 retval = EOK;
1622 break;
1623 case FB_CURSOR_GOTO:
1624 col = IPC_GET_ARG1(call);
1625 row = IPC_GET_ARG2(call);
1626
1627 if ((col >= vport->cols) || (row >= vport->rows)) {
1628 retval = EINVAL;
1629 break;
1630 }
1631 retval = EOK;
1632
1633 cursor_hide(vport);
1634 vport->cur_col = col;
1635 vport->cur_row = row;
1636 cursor_show(vport);
1637 break;
1638 case FB_CURSOR_VISIBILITY:
1639 cursor_hide(vport);
1640 vport->cursor_active = IPC_GET_ARG1(call);
1641 cursor_show(vport);
1642 retval = EOK;
1643 break;
1644 case FB_GET_CSIZE:
1645 ipc_answer_2(callid, EOK, vport->cols, vport->rows);
1646 continue;
1647 case FB_GET_COLOR_CAP:
1648 ipc_answer_1(callid, EOK, FB_CCAP_RGB);
1649 continue;
1650 case FB_SCROLL:
1651 scroll = IPC_GET_ARG1(call);
1652 if ((scroll > (int) vport->rows) || (scroll < (-(int) vport->rows))) {
1653 retval = EINVAL;
1654 break;
1655 }
1656 cursor_hide(vport);
1657 vport_scroll(vport, scroll);
1658 cursor_show(vport);
1659 retval = EOK;
1660 break;
1661 case FB_VIEWPORT_SWITCH:
1662 i = IPC_GET_ARG1(call);
1663 if (i >= MAX_VIEWPORTS) {
1664 retval = EINVAL;
1665 break;
1666 }
1667 if (!viewports[i].initialized) {
1668 retval = EADDRNOTAVAIL;
1669 break;
1670 }
1671 cursor_hide(vport);
1672 vp = i;
1673 vport = &viewports[vp];
1674 cursor_show(vport);
1675 retval = EOK;
1676 break;
1677 case FB_VIEWPORT_CREATE:
1678 retval = vport_create(IPC_GET_ARG1(call) >> 16,
1679 IPC_GET_ARG1(call) & 0xffff,
1680 IPC_GET_ARG2(call) >> 16,
1681 IPC_GET_ARG2(call) & 0xffff);
1682 break;
1683 case FB_VIEWPORT_DELETE:
1684 i = IPC_GET_ARG1(call);
1685 if (i >= MAX_VIEWPORTS) {
1686 retval = EINVAL;
1687 break;
1688 }
1689 if (!viewports[i].initialized) {
1690 retval = EADDRNOTAVAIL;
1691 break;
1692 }
1693 viewports[i].initialized = false;
1694 if (viewports[i].bgpixel)
1695 free(viewports[i].bgpixel);
1696 if (viewports[i].backbuf)
1697 free(viewports[i].backbuf);
1698 retval = EOK;
1699 break;
1700 case FB_SET_STYLE:
1701 retval = fb_set_style(vport, IPC_GET_ARG1(call));
1702 break;
1703 case FB_SET_COLOR:
1704 retval = fb_set_color(vport, IPC_GET_ARG1(call),
1705 IPC_GET_ARG2(call), IPC_GET_ARG3(call));
1706 break;
1707 case FB_SET_RGB_COLOR:
1708 vport->attr.fg_color = IPC_GET_ARG1(call);
1709 vport->attr.bg_color = IPC_GET_ARG2(call);
1710 retval = EOK;
1711 break;
1712 case FB_GET_RESOLUTION:
1713 ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1714 continue;
1715 case FB_POINTER_MOVE:
1716 pointer_enabled = true;
1717 mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
1718 retval = EOK;
1719 break;
1720 case FB_SCREEN_YIELD:
1721 case FB_SCREEN_RECLAIM:
1722 retval = EOK;
1723 break;
1724 default:
1725 retval = ENOENT;
1726 }
1727 ipc_answer_0(callid, retval);
1728 }
1729}
1730
1731/** Initialization of framebuffer
1732 *
1733 */
1734int fb_init(void)
1735{
1736 async_set_client_connection(fb_client_connection);
1737
1738 void *fb_ph_addr = (void *) sysinfo_value("fb.address.physical");
1739 unsigned int fb_offset = sysinfo_value("fb.offset");
1740 unsigned int fb_width = sysinfo_value("fb.width");
1741 unsigned int fb_height = sysinfo_value("fb.height");
1742 unsigned int fb_scanline = sysinfo_value("fb.scanline");
1743 unsigned int fb_visual = sysinfo_value("fb.visual");
1744
1745 unsigned int fbsize = fb_scanline * fb_height;
1746 void *fb_addr = as_get_mappable_page(fbsize);
1747
1748 if (physmem_map(fb_ph_addr + fb_offset, fb_addr,
1749 ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE) != 0)
1750 return -1;
1751
1752 if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1753 return 0;
1754
1755 return -1;
1756}
1757
1758/**
1759 * @}
1760 */
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