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1363 vana 1
/*
4153 mejdrech 2
 * Copyright (c) 2008 Martin Decky
2071 jermar 3
 * Copyright (c) 2006 Jakub Vana
4
 * Copyright (c) 2006 Ondrej Palkovsky
1363 vana 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
 
1740 jermar 31
/**
32
 * @defgroup fb Graphical framebuffer
33
 * @brief   HelenOS graphical framebuffer.
1649 cejka 34
 * @ingroup fbs
35
 * @{
4153 mejdrech 36
 */
1888 jermar 37
 
1649 cejka 38
/** @file
39
 */
40
 
1430 jermar 41
#include <stdlib.h>
42
#include <unistd.h>
43
#include <string.h>
1363 vana 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>
1430 jermar 50
#include <ipc/ns.h>
1363 vana 51
#include <ipc/services.h>
52
#include <kernel/errno.h>
1993 decky 53
#include <kernel/genarch/fb/visuals.h>
4153 mejdrech 54
#include <console/color.h>
55
#include <console/style.h>
1392 palkovsky 56
#include <async.h>
1993 decky 57
#include <bool.h>
1505 palkovsky 58
 
1404 palkovsky 59
#include "font-8x16.h"
1363 vana 60
#include "fb.h"
1505 palkovsky 61
#include "main.h"
62
#include "../console/screenbuffer.h"
1547 palkovsky 63
#include "ppm.h"
1363 vana 64
 
1711 palkovsky 65
#include "pointer.xbm"
66
#include "pointer_mask.xbm"
67
 
4153 mejdrech 68
#define DEFAULT_BGCOLOR  0xf0f0f0
69
#define DEFAULT_FGCOLOR  0x000000
1363 vana 70
 
4263 mejdrech 71
#define GLYPH_UNAVAIL   '?'
72
 
4153 mejdrech 73
#define MAX_ANIM_LEN     8
74
#define MAX_ANIMATIONS   4
75
#define MAX_PIXMAPS      256  /**< Maximum number of saved pixmaps */
76
#define MAX_VIEWPORTS    128  /**< Viewport is a rectangular area on the screen */
1363 vana 77
 
4153 mejdrech 78
/** Function to render a pixel from a RGB value. */
79
typedef void (*rgb_conv_t)(void *, uint32_t);
1363 vana 80
 
4153 mejdrech 81
/** Function to draw a glyph. */
82
typedef void (*dg_t)(unsigned int x, unsigned int y, bool cursor,
4263 mejdrech 83
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
4153 mejdrech 84
 
1485 palkovsky 85
struct {
4153 mejdrech 86
    uint8_t *fb_addr;
87
 
1875 jermar 88
    unsigned int xres;
89
    unsigned int yres;
4153 mejdrech 90
 
1875 jermar 91
    unsigned int scanline;
4153 mejdrech 92
    unsigned int glyphscanline;
93
 
1875 jermar 94
    unsigned int pixelbytes;
4153 mejdrech 95
    unsigned int glyphbytes;
4263 mejdrech 96
 
97
    /** Pre-rendered mask for rendering glyphs. Specific for the visual. */
98
    uint8_t *glyphs;
4153 mejdrech 99
 
100
    rgb_conv_t rgb_conv;
1485 palkovsky 101
} screen;
1363 vana 102
 
4153 mejdrech 103
/** Backbuffer character cell. */
1485 palkovsky 104
typedef struct {
4263 mejdrech 105
    uint32_t glyph;
4153 mejdrech 106
    uint32_t fg_color;
107
    uint32_t bg_color;
108
} bb_cell_t;
1363 vana 109
 
4153 mejdrech 110
typedef struct {
111
    bool initialized;
112
    unsigned int x;
113
    unsigned int y;
114
    unsigned int width;
115
    unsigned int height;
116
 
1485 palkovsky 117
    /* Text support in window */
4153 mejdrech 118
    unsigned int cols;
119
    unsigned int rows;
120
 
121
    /*
122
     * Style and glyphs for text printing
123
     */
124
 
125
    /** Current attributes. */
126
    attr_rgb_t attr;
127
 
128
    uint8_t *bgpixel;
129
 
4263 mejdrech 130
    /**
131
     * Glyph drawing function for this viewport.  Different viewports
132
     * might use different drawing functions depending on whether their
133
     * scanlines are aligned on a word boundary.
134
     */
4153 mejdrech 135
    dg_t dglyph;
136
 
1485 palkovsky 137
    /* Auto-cursor position */
4153 mejdrech 138
    bool cursor_active;
139
    unsigned int cur_col;
140
    unsigned int cur_row;
141
    bool cursor_shown;
142
 
143
    /* Back buffer */
144
    bb_cell_t *backbuf;
145
    unsigned int bbsize;
1485 palkovsky 146
} viewport_t;
1363 vana 147
 
1646 palkovsky 148
typedef struct {
4153 mejdrech 149
    bool initialized;
150
    bool enabled;
1646 palkovsky 151
    unsigned int vp;
4153 mejdrech 152
 
1646 palkovsky 153
    unsigned int pos;
154
    unsigned int animlen;
155
    unsigned int pixmaps[MAX_ANIM_LEN];
156
} animation_t;
4153 mejdrech 157
 
1646 palkovsky 158
static animation_t animations[MAX_ANIMATIONS];
4153 mejdrech 159
static bool anims_enabled;
1646 palkovsky 160
 
1552 palkovsky 161
typedef struct {
162
    unsigned int width;
163
    unsigned int height;
1781 jermar 164
    uint8_t *data;
1552 palkovsky 165
} pixmap_t;
4153 mejdrech 166
 
1552 palkovsky 167
static pixmap_t pixmaps[MAX_PIXMAPS];
1485 palkovsky 168
static viewport_t viewports[128];
169
 
4153 mejdrech 170
static bool client_connected = false;  /**< Allow only 1 connection */
1485 palkovsky 171
 
4153 mejdrech 172
static uint32_t color_table[16] = {
173
    [COLOR_BLACK]       = 0x000000,
174
    [COLOR_BLUE]        = 0x0000f0,
175
    [COLOR_GREEN]       = 0x00f000,
176
    [COLOR_CYAN]        = 0x00f0f0,
177
    [COLOR_RED]     = 0xf00000,
178
    [COLOR_MAGENTA]     = 0xf000f0,
179
    [COLOR_YELLOW]      = 0xf0f000,
180
    [COLOR_WHITE]       = 0xf0f0f0,
1363 vana 181
 
4153 mejdrech 182
    [8 + COLOR_BLACK]   = 0x000000,
183
    [8 + COLOR_BLUE]    = 0x0000ff,
184
    [8 + COLOR_GREEN]   = 0x00ff00,
185
    [8 + COLOR_CYAN]    = 0x00ffff,
186
    [8 + COLOR_RED]     = 0xff0000,
187
    [8 + COLOR_MAGENTA] = 0xff00ff,
188
    [8 + COLOR_YELLOW]  = 0xffff00,
189
    [8 + COLOR_WHITE]   = 0xffffff,
190
};
1363 vana 191
 
4153 mejdrech 192
static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a);
193
static int rgb_from_style(attr_rgb_t *rgb, int style);
194
static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
195
    ipcarg_t bg_color, ipcarg_t flags);
1363 vana 196
 
4153 mejdrech 197
static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
198
    ipcarg_t bg_color, ipcarg_t attr);
1875 jermar 199
 
4153 mejdrech 200
static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
4263 mejdrech 201
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
4153 mejdrech 202
static void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
4263 mejdrech 203
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
1363 vana 204
 
4153 mejdrech 205
static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
206
    unsigned int row);
1363 vana 207
 
1994 decky 208
 
4153 mejdrech 209
#define RED(x, bits)                 ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))
210
#define GREEN(x, bits)               ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
211
#define BLUE(x, bits)                ((x >> (8 - bits)) & ((1 << bits) - 1))
1994 decky 212
 
4153 mejdrech 213
#define COL2X(col)                   ((col) * FONT_WIDTH)
214
#define ROW2Y(row)                   ((row) * FONT_SCANLINES)
1363 vana 215
 
4153 mejdrech 216
#define X2COL(x)                     ((x) / FONT_WIDTH)
217
#define Y2ROW(y)                     ((y) / FONT_SCANLINES)
1363 vana 218
 
4153 mejdrech 219
#define FB_POS(x, y)                 ((y) * screen.scanline + (x) * screen.pixelbytes)
220
#define BB_POS(vport, col, row)      ((row) * vport->cols + (col))
221
#define GLYPH_POS(glyph, y, cursor)  (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
1993 decky 222
 
4153 mejdrech 223
 
224
/** ARGB 8:8:8:8 conversion
225
 *
226
 */
227
static void rgb_0888(void *dst, uint32_t rgb)
1993 decky 228
{
4153 mejdrech 229
    *((uint32_t *) dst) = rgb & 0xffffff;
1993 decky 230
}
231
 
4153 mejdrech 232
 
233
/** ABGR 8:8:8:8 conversion
234
 *
235
 */
236
static void bgr_0888(void *dst, uint32_t rgb)
1363 vana 237
{
4153 mejdrech 238
    *((uint32_t *) dst)
239
        = (BLUE(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | RED(rgb, 8);
1363 vana 240
}
241
 
4153 mejdrech 242
 
243
/** RGB 8:8:8 conversion
244
 *
245
 */
246
static void rgb_888(void *dst, uint32_t rgb)
1363 vana 247
{
4153 mejdrech 248
    ((uint8_t *) dst)[0] = BLUE(rgb, 8);
249
    ((uint8_t *) dst)[1] = GREEN(rgb, 8);
250
    ((uint8_t *) dst)[2] = RED(rgb, 8);
1363 vana 251
}
252
 
4153 mejdrech 253
 
254
/** BGR 8:8:8 conversion
255
 *
256
 */
257
static void bgr_888(void *dst, uint32_t rgb)
1363 vana 258
{
4153 mejdrech 259
    ((uint8_t *) dst)[0] = RED(rgb, 8);
260
    ((uint8_t *) dst)[1] = GREEN(rgb, 8);
261
    ((uint8_t *) dst)[2] = BLUE(rgb, 8);
1363 vana 262
}
263
 
4153 mejdrech 264
 
265
/** RGB 5:5:5 conversion
266
 *
267
 */
268
static void rgb_555(void *dst, uint32_t rgb)
1363 vana 269
{
4153 mejdrech 270
    *((uint16_t *) dst)
271
        = (RED(rgb, 5) << 10) | (GREEN(rgb, 5) << 5) | BLUE(rgb, 5);
1363 vana 272
}
273
 
4153 mejdrech 274
 
275
/** RGB 5:6:5 conversion
1498 palkovsky 276
 *
277
 */
4153 mejdrech 278
static void rgb_565(void *dst, uint32_t rgb)
1485 palkovsky 279
{
4153 mejdrech 280
    *((uint16_t *) dst)
281
        = (RED(rgb, 5) << 11) | (GREEN(rgb, 6) << 5) | BLUE(rgb, 5);
1485 palkovsky 282
}
1672 palkovsky 283
 
1555 palkovsky 284
 
4153 mejdrech 285
/** RGB 3:2:3
286
 *
287
 */
288
static void rgb_323(void *dst, uint32_t rgb)
1363 vana 289
{
4153 mejdrech 290
    *((uint8_t *) dst)
291
        = ~((RED(rgb, 3) << 5) | (GREEN(rgb, 2) << 3) | BLUE(rgb, 3));
1363 vana 292
}
293
 
4153 mejdrech 294
/** Draw a filled rectangle.
295
 *
296
 * @note Need real implementation that does not access VRAM twice.
297
 */
298
static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
299
    unsigned int y1, uint32_t color)
1559 palkovsky 300
{
301
    unsigned int x, y;
4153 mejdrech 302
    unsigned int copy_bytes;
1559 palkovsky 303
 
4153 mejdrech 304
    uint8_t *sp, *dp;
305
    uint8_t cbuf[4];
1668 palkovsky 306
 
4153 mejdrech 307
    if (y0 >= y1 || x0 >= x1) return;
308
    screen.rgb_conv(cbuf, color);
1559 palkovsky 309
 
4153 mejdrech 310
    sp = &screen.fb_addr[FB_POS(x0, y0)];
311
    dp = sp;
312
 
313
    /* Draw the first line. */
314
    for (x = x0; x < x1; x++) {
315
        memcpy(dp, cbuf, screen.pixelbytes);
316
        dp += screen.pixelbytes;
1672 palkovsky 317
    }
1559 palkovsky 318
 
4153 mejdrech 319
    dp = sp + screen.scanline;
320
    copy_bytes = (x1 - x0) * screen.pixelbytes;
1559 palkovsky 321
 
4153 mejdrech 322
    /* Draw the remaining lines by copying. */
323
    for (y = y0 + 1; y < y1; y++) {
324
        memcpy(dp, sp, copy_bytes);
325
        dp += screen.scanline;
326
    }
1363 vana 327
}
328
 
4153 mejdrech 329
/** Redraw viewport.
1485 palkovsky 330
 *
4153 mejdrech 331
 * @param vport Viewport to redraw
332
 *
1485 palkovsky 333
 */
4153 mejdrech 334
static void vport_redraw(viewport_t *vport)
1363 vana 335
{
4153 mejdrech 336
    unsigned int row, col;
1672 palkovsky 337
 
4153 mejdrech 338
    for (row = 0; row < vport->rows; row++) {
339
        for (col = 0; col < vport->cols; col++) {
340
            draw_vp_glyph(vport, false, col, row);
341
        }
1485 palkovsky 342
    }
1363 vana 343
 
4153 mejdrech 344
    if (COL2X(vport->cols) < vport->width) {
345
        draw_filled_rect(
346
            vport->x + COL2X(vport->cols), vport->y,
347
            vport->x + vport->width, vport->y + vport->height,
348
            vport->attr.bg_color);
349
    }
1672 palkovsky 350
 
4153 mejdrech 351
    if (ROW2Y(vport->rows) < vport->height) {
352
        draw_filled_rect(
353
            vport->x, vport->y + ROW2Y(vport->rows),
354
            vport->x + vport->width, vport->y + vport->height,
355
            vport->attr.bg_color);
1672 palkovsky 356
    }
357
}
358
 
4153 mejdrech 359
static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
360
    uint32_t bg_color)
1672 palkovsky 361
{
4153 mejdrech 362
    unsigned i;
1672 palkovsky 363
 
4153 mejdrech 364
    for (i = 0; i < len; i++) {
365
        backbuf[i].glyph = 0;
366
        backbuf[i].fg_color = fg_color;
367
        backbuf[i].bg_color = bg_color;
1672 palkovsky 368
    }
369
}
370
 
4153 mejdrech 371
/** Clear viewport.
372
 *
373
 * @param vport Viewport to clear
374
 *
375
 */
376
static void vport_clear(viewport_t *vport)
1672 palkovsky 377
{
4153 mejdrech 378
    backbuf_clear(vport->backbuf, vport->cols * vport->rows,
379
        vport->attr.fg_color, vport->attr.bg_color);
380
    vport_redraw(vport);
1672 palkovsky 381
}
382
 
4153 mejdrech 383
/** Scroll viewport by the specified number of lines.
384
 *
385
 * @param vport Viewport to scroll
386
 * @param lines Number of lines to scroll
387
 *
388
 */
389
static void vport_scroll(viewport_t *vport, int lines)
1363 vana 390
{
4153 mejdrech 391
    unsigned int row, col;
392
    unsigned int x, y;
4263 mejdrech 393
    uint32_t glyph;
4153 mejdrech 394
    uint32_t fg_color;
395
    uint32_t bg_color;
396
    bb_cell_t *bbp, *xbp;
1363 vana 397
 
4153 mejdrech 398
    /*
399
     * Redraw.
400
     */
1363 vana 401
 
4153 mejdrech 402
    y = vport->y;
403
    for (row = 0; row < vport->rows; row++) {
404
        x = vport->x;
405
        for (col = 0; col < vport->cols; col++) {
406
            if ((row + lines >= 0) && (row + lines < vport->rows)) {
407
                xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
408
                bbp = &vport->backbuf[BB_POS(vport, col, row)];
1363 vana 409
 
4153 mejdrech 410
                glyph = xbp->glyph;
411
                fg_color = xbp->fg_color;
412
                bg_color = xbp->bg_color;
1363 vana 413
 
4153 mejdrech 414
                if (bbp->glyph == glyph &&
415
                    bbp->fg_color == xbp->fg_color &&
416
                    bbp->bg_color == xbp->bg_color) {
417
                    x += FONT_WIDTH;
418
                    continue;
419
                }
420
            } else {
421
                glyph = 0;
422
                fg_color = vport->attr.fg_color;
423
                bg_color = vport->attr.bg_color;
424
            }
425
 
4263 mejdrech 426
            (*vport->dglyph)(x, y, false, screen.glyphs, glyph,
4153 mejdrech 427
                fg_color, bg_color);
428
            x += FONT_WIDTH;
1509 palkovsky 429
        }
4153 mejdrech 430
        y += FONT_SCANLINES;
1509 palkovsky 431
    }
4153 mejdrech 432
 
433
    /*
434
     * Scroll backbuffer.
435
     */
436
 
437
    if (lines > 0) {
438
        memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
439
            vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
440
        backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
441
            vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
442
    } else {
443
        memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
444
            vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
445
        backbuf_clear(vport->backbuf, - vport->cols * lines,
446
            vport->attr.fg_color, vport->attr.bg_color);
447
    }
1363 vana 448
}
449
 
4153 mejdrech 450
/** Render glyphs
451
 *
452
 * Convert glyphs from device independent font
453
 * description to current visual representation.
454
 */
4263 mejdrech 455
static void render_glyphs(void)
1363 vana 456
{
4153 mejdrech 457
    unsigned int glyph;
4263 mejdrech 458
 
4153 mejdrech 459
    for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
460
        unsigned int y;
4263 mejdrech 461
 
4153 mejdrech 462
        for (y = 0; y < FONT_SCANLINES; y++) {
463
            unsigned int x;
4263 mejdrech 464
 
4153 mejdrech 465
            for (x = 0; x < FONT_WIDTH; x++) {
4263 mejdrech 466
                screen.rgb_conv(&screen.glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
467
                    (fb_font[glyph][y] & (1 << (7 - x)))
4153 mejdrech 468
                    ? 0xffffff : 0x000000);
4263 mejdrech 469
 
470
                screen.rgb_conv(&screen.glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
471
                    (fb_font[glyph][y] & (1 << (7 - x)))
4153 mejdrech 472
                    ? 0x000000 : 0xffffff);
473
            }
474
        }
475
    }
1363 vana 476
}
477
 
478
 
1485 palkovsky 479
/** Create new viewport
1363 vana 480
 *
4153 mejdrech 481
 * @param x      Origin of the viewport (x).
482
 * @param y      Origin of the viewport (y).
483
 * @param width  Width of the viewport.
484
 * @param height Height of the viewport.
485
 *
486
 * @return New viewport number.
487
 *
1363 vana 488
 */
4153 mejdrech 489
static int vport_create(unsigned int x, unsigned int y,
490
    unsigned int width, unsigned int height)
1363 vana 491
{
4153 mejdrech 492
    unsigned int i;
493
 
2070 jermar 494
    for (i = 0; i < MAX_VIEWPORTS; i++) {
1485 palkovsky 495
        if (!viewports[i].initialized)
1363 vana 496
            break;
497
    }
1485 palkovsky 498
    if (i == MAX_VIEWPORTS)
499
        return ELIMIT;
4153 mejdrech 500
 
501
    unsigned int cols = width / FONT_WIDTH;
502
    unsigned int rows = height / FONT_SCANLINES;
503
    unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
504
    unsigned int word_size = sizeof(unsigned long);
505
 
506
    bb_cell_t *backbuf = (bb_cell_t *) malloc(bbsize);
507
    if (!backbuf)
508
        return ENOMEM;
509
 
510
    uint8_t *bgpixel = (uint8_t *) malloc(screen.pixelbytes);
511
    if (!bgpixel) {
512
        free(backbuf);
513
        return ENOMEM;
514
    }
1485 palkovsky 515
 
4153 mejdrech 516
    backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
517
    memset(bgpixel, 0, screen.pixelbytes);
518
 
1485 palkovsky 519
    viewports[i].x = x;
520
    viewports[i].y = y;
521
    viewports[i].width = width;
522
    viewports[i].height = height;
1363 vana 523
 
4153 mejdrech 524
    viewports[i].cols = cols;
525
    viewports[i].rows = rows;
526
 
527
    viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
528
    viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
529
 
530
    viewports[i].bgpixel = bgpixel;
1485 palkovsky 531
 
4153 mejdrech 532
    /*
533
     * Conditions necessary  to select aligned version:
534
     *
535
     *   - word size is divisible by pixelbytes
536
     *   - cell scanline size is divisible by word size
537
     *   - cell scanlines are word-aligned
538
     */
539
    if ((word_size % screen.pixelbytes) == 0 &&
540
        (FONT_WIDTH * screen.pixelbytes) % word_size == 0 &&
541
        (x * screen.pixelbytes) % word_size == 0 &&
542
        screen.scanline % word_size == 0) {
543
 
544
        viewports[i].dglyph = draw_glyph_aligned;
545
    } else {
546
        viewports[i].dglyph = draw_glyph_fallback;
547
    }
548
 
1489 palkovsky 549
    viewports[i].cur_col = 0;
550
    viewports[i].cur_row = 0;
4153 mejdrech 551
    viewports[i].cursor_active = false;
552
    viewports[i].cursor_shown = false;
553
 
554
    viewports[i].bbsize = bbsize;
555
    viewports[i].backbuf = backbuf;
556
 
557
    viewports[i].initialized = true;
558
 
4263 mejdrech 559
    screen.rgb_conv(viewports[i].bgpixel, viewports[i].attr.bg_color);
4153 mejdrech 560
 
1485 palkovsky 561
    return i;
1363 vana 562
}
563
 
4153 mejdrech 564
 
1363 vana 565
/** Initialize framebuffer as a chardev output device
566
 *
4153 mejdrech 567
 * @param addr   Address of the framebuffer
568
 * @param xres   Screen width in pixels
569
 * @param yres   Screen height in pixels
570
 * @param visual Bits per pixel (8, 16, 24, 32)
571
 * @param scan   Bytes per one scanline
1363 vana 572
 *
573
 */
4153 mejdrech 574
static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
575
    unsigned int scan, unsigned int visual)
1363 vana 576
{
4263 mejdrech 577
    unsigned int glyphsize;
578
    uint8_t *glyphs;
1993 decky 579
    switch (visual) {
580
    case VISUAL_INDIRECT_8:
4153 mejdrech 581
        screen.rgb_conv = rgb_323;
1886 jermar 582
        screen.pixelbytes = 1;
583
        break;
1993 decky 584
    case VISUAL_RGB_5_5_5:
4153 mejdrech 585
        screen.rgb_conv = rgb_555;
1886 jermar 586
        screen.pixelbytes = 2;
587
        break;
1993 decky 588
    case VISUAL_RGB_5_6_5:
4153 mejdrech 589
        screen.rgb_conv = rgb_565;
1993 decky 590
        screen.pixelbytes = 2;
1886 jermar 591
        break;
1993 decky 592
    case VISUAL_RGB_8_8_8:
4153 mejdrech 593
        screen.rgb_conv = rgb_888;
1993 decky 594
        screen.pixelbytes = 3;
595
        break;
4153 mejdrech 596
    case VISUAL_BGR_8_8_8:
597
        screen.rgb_conv = bgr_888;
598
        screen.pixelbytes = 3;
599
        break;
1993 decky 600
    case VISUAL_RGB_8_8_8_0:
4153 mejdrech 601
        screen.rgb_conv = rgb_888;
1886 jermar 602
        screen.pixelbytes = 4;
603
        break;
1993 decky 604
    case VISUAL_RGB_0_8_8_8:
4153 mejdrech 605
        screen.rgb_conv = rgb_0888;
1993 decky 606
        screen.pixelbytes = 4;
607
        break;
1994 decky 608
    case VISUAL_BGR_0_8_8_8:
4153 mejdrech 609
        screen.rgb_conv = bgr_0888;
1994 decky 610
        screen.pixelbytes = 4;
611
        break;
1993 decky 612
    default:
613
        return false;
1363 vana 614
    }
615
 
4153 mejdrech 616
    screen.fb_addr = (unsigned char *) addr;
1485 palkovsky 617
    screen.xres = xres;
618
    screen.yres = yres;
619
    screen.scanline = scan;
1363 vana 620
 
4153 mejdrech 621
    screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
622
    screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
4263 mejdrech 623
 
624
    glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
625
    glyphs = (uint8_t *) malloc(glyphsize);
626
    if (!glyphs)
627
        return false;
4153 mejdrech 628
 
4263 mejdrech 629
    memset(glyphs, 0, glyphsize);
630
    screen.glyphs = glyphs;
631
 
632
    render_glyphs();
633
 
1485 palkovsky 634
    /* Create first viewport */
4153 mejdrech 635
    vport_create(0, 0, xres, yres);
1993 decky 636
 
637
    return true;
1485 palkovsky 638
}
1363 vana 639
 
4153 mejdrech 640
 
641
/** Draw a glyph, takes advantage of alignment.
642
 *
643
 * This version can only be used if the following conditions are met:
644
 *
645
 *   - word size is divisible by pixelbytes
646
 *   - cell scanline size is divisible by word size
647
 *   - cell scanlines are word-aligned
648
 *
649
 * It makes use of the pre-rendered mask to process (possibly) several
650
 * pixels at once (word size / pixelbytes pixels at a time are processed)
651
 * making it very fast. Most notably this version is not applicable at 24 bits
652
 * per pixel.
653
 *
654
 * @param x     x coordinate of top-left corner on screen.
655
 * @param y     y coordinate of top-left corner on screen.
656
 * @param cursor    Draw glyph with cursor
657
 * @param glyphs    Pointer to font bitmap.
658
 * @param glyph     Code of the glyph to draw.
659
 * @param fg_color  Foreground color.
660
 * @param bg_color  Backgroudn color.
661
 */
662
static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
4263 mejdrech 663
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
1500 palkovsky 664
{
4153 mejdrech 665
    unsigned int i, yd;
666
    unsigned long fg_buf, bg_buf;
667
    unsigned long *maskp, *dp;
668
    unsigned long mask;
669
    unsigned int ww, d_add;
670
 
671
    /*
672
     * Prepare a pair of words, one filled with foreground-color
673
     * pattern and the other filled with background-color pattern.
674
     */
675
    for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
676
        screen.rgb_conv(&((uint8_t *)&fg_buf)[i * screen.pixelbytes],
677
            fg_color);
678
        screen.rgb_conv(&((uint8_t *)&bg_buf)[i * screen.pixelbytes],
679
            bg_color);
1500 palkovsky 680
    }
4153 mejdrech 681
 
682
    /* Pointer to the current position in the mask. */
683
    maskp = (unsigned long *) &glyphs[GLYPH_POS(glyph, 0, cursor)];
684
 
685
    /* Pointer to the current position on the screen. */
686
    dp = (unsigned long *) &screen.fb_addr[FB_POS(x, y)];
687
 
688
    /* Width of the character cell in words. */
689
    ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
690
 
691
    /* Offset to add when moving to another screen scanline. */
692
    d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
693
 
694
    for (yd = 0; yd < FONT_SCANLINES; yd++) {
695
        /*
696
         * Now process the cell scanline, combining foreground
697
         * and background color patters using the pre-rendered mask.
698
         */
699
        for (i = 0; i < ww; i++) {
700
            mask = *maskp++;
701
            *dp++ = (fg_buf & mask) | (bg_buf & ~mask);
702
        }
703
 
704
        /* Move to the beginning of the next scanline of the cell. */
705
        dp = (unsigned long *) ((uint8_t *) dp + d_add);
706
    }
1500 palkovsky 707
}
708
 
4153 mejdrech 709
/** Draw a glyph, fallback version.
710
 *
711
 * This version does not make use of the pre-rendered mask, it uses
712
 * the font bitmap directly. It works always, but it is slower.
713
 *
714
 * @param x     x coordinate of top-left corner on screen.
715
 * @param y     y coordinate of top-left corner on screen.
716
 * @param cursor    Draw glyph with cursor
717
 * @param glyphs    Pointer to font bitmap.
718
 * @param glyph     Code of the glyph to draw.
719
 * @param fg_color  Foreground color.
720
 * @param bg_color  Backgroudn color.
721
 */
722
void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
4263 mejdrech 723
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
1500 palkovsky 724
{
4153 mejdrech 725
    unsigned int i, j, yd;
726
    uint8_t fg_buf[4], bg_buf[4];
727
    uint8_t *dp, *sp;
728
    unsigned int d_add;
729
    uint8_t b;
730
 
731
    /* Pre-render 1x the foreground and background color pixels. */
732
    if (cursor) {
733
        screen.rgb_conv(fg_buf, bg_color);
734
        screen.rgb_conv(bg_buf, fg_color);
735
    } else {
736
        screen.rgb_conv(fg_buf, fg_color);
737
        screen.rgb_conv(bg_buf, bg_color);
738
    }
739
 
740
    /* Pointer to the current position on the screen. */
741
    dp = (uint8_t *) &screen.fb_addr[FB_POS(x, y)];
742
 
743
    /* Offset to add when moving to another screen scanline. */
744
    d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
745
 
746
    for (yd = 0; yd < FONT_SCANLINES; yd++) {
747
        /* Byte containing bits of the glyph scanline. */
4263 mejdrech 748
        b = fb_font[glyph][yd];
4153 mejdrech 749
 
750
        for (i = 0; i < FONT_WIDTH; i++) {
751
            /* Choose color based on the current bit. */
752
            sp = (b & 0x80) ? fg_buf : bg_buf;
753
 
754
            /* Copy the pixel. */
755
            for (j = 0; j < screen.pixelbytes; j++) {
756
                *dp++ = *sp++;
757
            }
758
 
759
            /* Move to the next bit. */
760
            b = b << 1;
761
        }
762
 
763
        /* Move to the beginning of the next scanline of the cell. */
764
        dp += d_add;
765
    }
766
}
767
 
768
/** Draw glyph at specified position in viewport.
769
 *
770
 * @param vport  Viewport identification
771
 * @param cursor Draw glyph with cursor
772
 * @param col    Screen position relative to viewport
773
 * @param row    Screen position relative to viewport
774
 *
775
 */
776
static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
777
    unsigned int row)
778
{
779
    unsigned int x = vport->x + COL2X(col);
780
    unsigned int y = vport->y + ROW2Y(row);
781
 
4263 mejdrech 782
    uint32_t glyph;
4153 mejdrech 783
    uint32_t fg_color;
784
    uint32_t bg_color;
785
 
786
    glyph = vport->backbuf[BB_POS(vport, col, row)].glyph;
787
    fg_color = vport->backbuf[BB_POS(vport, col, row)].fg_color;
788
    bg_color = vport->backbuf[BB_POS(vport, col, row)].bg_color;
789
 
4263 mejdrech 790
    (*vport->dglyph)(x, y, cursor, screen.glyphs, glyph,
4153 mejdrech 791
        fg_color, bg_color);
792
}
793
 
794
/** Hide cursor if it is shown
795
 *
796
 */
797
static void cursor_hide(viewport_t *vport)
798
{
799
    if ((vport->cursor_active) && (vport->cursor_shown)) {
800
        draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
801
        vport->cursor_shown = false;
802
    }
803
}
804
 
805
 
806
/** Show cursor if cursor showing is enabled
807
 *
808
 */
809
static void cursor_show(viewport_t *vport)
810
{
1500 palkovsky 811
    /* Do not check for cursor_shown */
812
    if (vport->cursor_active) {
4153 mejdrech 813
        draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
814
        vport->cursor_shown = true;
1500 palkovsky 815
    }
816
}
817
 
4153 mejdrech 818
 
819
/** Invert cursor, if it is enabled
820
 *
821
 */
822
static void cursor_blink(viewport_t *vport)
1500 palkovsky 823
{
824
    if (vport->cursor_shown)
1673 palkovsky 825
        cursor_hide(vport);
1500 palkovsky 826
    else
4153 mejdrech 827
        cursor_show(vport);
1500 palkovsky 828
}
829
 
4153 mejdrech 830
 
831
/** Draw character at given position relative to viewport
832
 *
833
 * @param vport  Viewport identification
834
 * @param c      Character to draw
835
 * @param col    Screen position relative to viewport
836
 * @param row    Screen position relative to viewport
837
 *
1498 palkovsky 838
 */
4263 mejdrech 839
static void draw_char(viewport_t *vport, wchar_t c, unsigned int col, unsigned int row)
1486 palkovsky 840
{
4153 mejdrech 841
    bb_cell_t *bbp;
842
 
843
    /* Do not hide cursor if we are going to overwrite it */
844
    if ((vport->cursor_active) && (vport->cursor_shown) &&
845
        ((vport->cur_col != col) || (vport->cur_row != row)))
846
        cursor_hide(vport);
847
 
848
    bbp = &vport->backbuf[BB_POS(vport, col, row)];
4263 mejdrech 849
    bbp->glyph = fb_font_glyph(c);
4153 mejdrech 850
    bbp->fg_color = vport->attr.fg_color;
851
    bbp->bg_color = vport->attr.bg_color;
852
 
853
    draw_vp_glyph(vport, false, col, row);
1486 palkovsky 854
 
1489 palkovsky 855
    vport->cur_col = col;
856
    vport->cur_row = row;
4153 mejdrech 857
 
1489 palkovsky 858
    vport->cur_col++;
2025 jermar 859
    if (vport->cur_col >= vport->cols) {
1489 palkovsky 860
        vport->cur_col = 0;
861
        vport->cur_row++;
862
        if (vport->cur_row >= vport->rows)
863
            vport->cur_row--;
1486 palkovsky 864
    }
4153 mejdrech 865
 
866
    cursor_show(vport);
1486 palkovsky 867
}
868
 
4263 mejdrech 869
/** Draw text data to viewport.
1552 palkovsky 870
 *
1709 jermar 871
 * @param vport Viewport id
4263 mejdrech 872
 * @param data  Text data.
873
 * @param x Leftmost column of the area.
874
 * @param y Topmost row of the area.
875
 * @param w Number of rows.
876
 * @param h Number of columns.
1552 palkovsky 877
 */
4263 mejdrech 878
static void draw_text_data(viewport_t *vport, keyfield_t *data, unsigned int x,
879
    unsigned int y, unsigned int w, unsigned int h)
1505 palkovsky 880
{
4263 mejdrech 881
    unsigned int i, j;
4153 mejdrech 882
    bb_cell_t *bbp;
883
    attrs_t *a;
884
    attr_rgb_t rgb;
1505 palkovsky 885
 
4263 mejdrech 886
    for (j = 0; j < h; j++) {
887
        for (i = 0; i < w; i++) {
888
            unsigned int col = x + i;
889
            unsigned int row = y + j;
4153 mejdrech 890
 
4263 mejdrech 891
            bbp = &vport->backbuf[BB_POS(vport, col, row)];
4153 mejdrech 892
 
4263 mejdrech 893
            a = &data[j * w + i].attrs;
894
            rgb_from_attr(&rgb, a);
895
 
896
            bbp->glyph = fb_font_glyph(data[j * w + i].character);
897
            bbp->fg_color = rgb.fg_color;
898
            bbp->bg_color = rgb.bg_color;
899
 
900
            draw_vp_glyph(vport, false, col, row);
901
        }
1505 palkovsky 902
    }
4153 mejdrech 903
    cursor_show(vport);
1505 palkovsky 904
}
905
 
4153 mejdrech 906
 
907
static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
1555 palkovsky 908
{
4153 mejdrech 909
    int pm = *((int *) data);
910
    pixmap_t *pmap = &pixmaps[pm];
911
    unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
1555 palkovsky 912
 
4153 mejdrech 913
    screen.rgb_conv(&pmap->data[pos], color);
914
}
915
 
916
 
917
static 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
 */
930
static int find_free_pixmap(void)
931
{
932
    unsigned int i;
933
 
934
    for (i = 0; i < MAX_PIXMAPS; i++)
1555 palkovsky 935
        if (!pixmaps[i].data)
936
            return i;
4153 mejdrech 937
 
1555 palkovsky 938
    return -1;
939
}
940
 
941
 
4153 mejdrech 942
/** Create a new pixmap and return appropriate ID
943
 *
944
 */
945
static int shm2pixmap(unsigned char *shm, size_t size)
1555 palkovsky 946
{
947
    int pm;
948
    pixmap_t *pmap;
4153 mejdrech 949
 
1555 palkovsky 950
    pm = find_free_pixmap();
951
    if (pm == -1)
952
        return ELIMIT;
4153 mejdrech 953
 
1555 palkovsky 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;
4153 mejdrech 962
 
963
    ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
964
 
1555 palkovsky 965
    return pm;
966
}
967
 
4153 mejdrech 968
 
1552 palkovsky 969
/** Handle shared memory communication calls
970
 *
971
 * Protocol for drawing pixmaps:
972
 * - FB_PREPARE_SHM(client shm identification)
2025 jermar 973
 * - IPC_M_AS_AREA_SEND
4153 mejdrech 974
 * - FB_DRAW_PPM(startx, starty)
1552 palkovsky 975
 * - FB_DROP_SHM
976
 *
977
 * Protocol for text drawing
2025 jermar 978
 * - IPC_M_AS_AREA_SEND
1552 palkovsky 979
 * - FB_DRAW_TEXT_DATA
980
 *
981
 * @param callid Callid of the current call
4153 mejdrech 982
 * @param call   Current call data
983
 * @param vp     Active viewport
1552 palkovsky 984
 *
4153 mejdrech 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
1552 palkovsky 988
 * to redefine static variables with __thread
4153 mejdrech 989
 *
1552 palkovsky 990
 */
4153 mejdrech 991
static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1547 palkovsky 992
{
993
    static keyfield_t *interbuffer = NULL;
994
    static size_t intersize = 0;
4153 mejdrech 995
 
1720 palkovsky 996
    static unsigned char *shm = NULL;
1555 palkovsky 997
    static ipcarg_t shm_id = 0;
998
    static size_t shm_size;
4153 mejdrech 999
 
1000
    bool handled = true;
1001
    int retval = EOK;
1547 palkovsky 1002
    viewport_t *vport = &viewports[vp];
4153 mejdrech 1003
    unsigned int x;
1004
    unsigned int y;
4263 mejdrech 1005
    unsigned int w;
1006
    unsigned int h;
4153 mejdrech 1007
 
1547 palkovsky 1008
    switch (IPC_GET_METHOD(*call)) {
2677 jermar 1009
    case IPC_M_SHARE_OUT:
1547 palkovsky 1010
        /* We accept one area for data interchange */
1555 palkovsky 1011
        if (IPC_GET_ARG1(*call) == shm_id) {
2141 jermar 1012
            void *dest = as_get_mappable_page(IPC_GET_ARG2(*call));
1555 palkovsky 1013
            shm_size = IPC_GET_ARG2(*call);
4153 mejdrech 1014
            if (!ipc_answer_1(callid, EOK, (sysarg_t) dest))
1555 palkovsky 1015
                shm = dest;
1547 palkovsky 1016
            else
1555 palkovsky 1017
                shm_id = 0;
4153 mejdrech 1018
 
1555 palkovsky 1019
            if (shm[0] != 'P')
4153 mejdrech 1020
                return false;
1021
 
1022
            return true;
1547 palkovsky 1023
        } else {
1024
            intersize = IPC_GET_ARG2(*call);
2015 jermar 1025
            receive_comm_area(callid, call, (void *) &interbuffer);
1547 palkovsky 1026
        }
4153 mejdrech 1027
        return true;
1547 palkovsky 1028
    case FB_PREPARE_SHM:
1555 palkovsky 1029
        if (shm_id)
1547 palkovsky 1030
            retval = EBUSY;
1031
        else
1555 palkovsky 1032
            shm_id = IPC_GET_ARG1(*call);
1547 palkovsky 1033
        break;
1034
 
1035
    case FB_DROP_SHM:
1555 palkovsky 1036
        if (shm) {
1037
            as_area_destroy(shm);
1038
            shm = NULL;
1547 palkovsky 1039
        }
1555 palkovsky 1040
        shm_id = 0;
1547 palkovsky 1041
        break;
4153 mejdrech 1042
 
1555 palkovsky 1043
    case FB_SHM2PIXMAP:
1044
        if (!shm) {
1045
            retval = EINVAL;
1046
            break;
1047
        }
1048
        retval = shm2pixmap(shm, shm_size);
1049
        break;
1547 palkovsky 1050
    case FB_DRAW_PPM:
1555 palkovsky 1051
        if (!shm) {
1547 palkovsky 1052
            retval = EINVAL;
1053
            break;
1054
        }
1055
        x = IPC_GET_ARG1(*call);
1056
        y = IPC_GET_ARG2(*call);
4153 mejdrech 1057
 
1058
        if ((x > vport->width) || (y > vport->height)) {
1547 palkovsky 1059
            retval = EINVAL;
1060
            break;
1061
        }
1062
 
2025 jermar 1063
        ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
4153 mejdrech 1064
            IPC_GET_ARG2(*call), vport->width - x, vport->height - y, putpixel, (void *) vport);
1547 palkovsky 1065
        break;
1066
    case FB_DRAW_TEXT_DATA:
4263 mejdrech 1067
        x = IPC_GET_ARG1(*call);
1068
        y = IPC_GET_ARG2(*call);
1069
        w = IPC_GET_ARG3(*call);
1070
        h = IPC_GET_ARG4(*call);
1547 palkovsky 1071
        if (!interbuffer) {
1072
            retval = EINVAL;
1073
            break;
1074
        }
4263 mejdrech 1075
        if (x + w > vport->cols || y + h > vport->rows) {
1547 palkovsky 1076
            retval = EINVAL;
1077
            break;
1078
        }
4263 mejdrech 1079
        if (intersize < w * h * sizeof(*interbuffer)) {
1080
            retval = EINVAL;
1081
            break;
1082
        }
1083
        draw_text_data(vport, interbuffer, x, y, w, h);
1547 palkovsky 1084
        break;
1085
    default:
4153 mejdrech 1086
        handled = false;
1547 palkovsky 1087
    }
1088
 
1089
    if (handled)
2619 jermar 1090
        ipc_answer_0(callid, retval);
1547 palkovsky 1091
    return handled;
1092
}
1093
 
4153 mejdrech 1094
 
1095
static void copy_vp_to_pixmap(viewport_t *vport, pixmap_t *pmap)
1552 palkovsky 1096
{
4153 mejdrech 1097
    unsigned int width = vport->width;
1098
    unsigned int height = vport->height;
1099
 
1711 palkovsky 1100
    if (width + vport->x > screen.xres)
1101
        width = screen.xres - vport->x;
2301 decky 1102
    if (height + vport->y > screen.yres)
1711 palkovsky 1103
        height = screen.yres - vport->y;
2301 decky 1104
 
4153 mejdrech 1105
    unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1106
    unsigned int realheight = pmap->height <= height ? pmap->height : height;
2301 decky 1107
 
4153 mejdrech 1108
    unsigned int srcrowsize = vport->width * screen.pixelbytes;
1109
    unsigned int realrowsize = realwidth * screen.pixelbytes;
1110
 
1111
    unsigned int y;
2301 decky 1112
    for (y = 0; y < realheight; y++) {
4153 mejdrech 1113
        unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1114
        memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1711 palkovsky 1115
    }
1116
}
1117
 
4153 mejdrech 1118
 
1119
/** Save viewport to pixmap
1120
 *
1121
 */
1122
static int save_vp_to_pixmap(viewport_t *vport)
1711 palkovsky 1123
{
1124
    int pm;
1125
    pixmap_t *pmap;
4153 mejdrech 1126
 
1552 palkovsky 1127
    pm = find_free_pixmap();
1128
    if (pm == -1)
1129
        return ELIMIT;
1130
 
1131
    pmap = &pixmaps[pm];
1132
    pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
1133
    if (!pmap->data)
1134
        return ENOMEM;
4153 mejdrech 1135
 
1552 palkovsky 1136
    pmap->width = vport->width;
1137
    pmap->height = vport->height;
4153 mejdrech 1138
 
1711 palkovsky 1139
    copy_vp_to_pixmap(vport, pmap);
1552 palkovsky 1140
 
1141
    return pm;
1142
}
1143
 
4153 mejdrech 1144
 
1552 palkovsky 1145
/** Draw pixmap on screen
1146
 *
1147
 * @param vp Viewport to draw on
1148
 * @param pm Pixmap identifier
4153 mejdrech 1149
 *
1552 palkovsky 1150
 */
1151
static int draw_pixmap(int vp, int pm)
1152
{
1153
    pixmap_t *pmap = &pixmaps[pm];
1154
    viewport_t *vport = &viewports[vp];
4153 mejdrech 1155
 
1156
    unsigned int width = vport->width;
1157
    unsigned int height = vport->height;
1158
 
1711 palkovsky 1159
    if (width + vport->x > screen.xres)
1160
        width = screen.xres - vport->x;
1161
    if (height + vport->y > screen.yres)
1162
        height = screen.yres - vport->y;
4153 mejdrech 1163
 
1552 palkovsky 1164
    if (!pmap->data)
1165
        return EINVAL;
4153 mejdrech 1166
 
1167
    unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1168
    unsigned int realheight = pmap->height <= height ? pmap->height : height;
1169
 
1170
    unsigned int srcrowsize = vport->width * screen.pixelbytes;
1171
    unsigned int realrowsize = realwidth * screen.pixelbytes;
1172
 
1173
    unsigned int y;
2070 jermar 1174
    for (y = 0; y < realheight; y++) {
4153 mejdrech 1175
        unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1176
        memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1552 palkovsky 1177
    }
4153 mejdrech 1178
 
1179
    return EOK;
1552 palkovsky 1180
}
1181
 
4153 mejdrech 1182
 
1183
/** Tick animation one step forward
1184
 *
1185
 */
1186
static void anims_tick(void)
1646 palkovsky 1187
{
4153 mejdrech 1188
    unsigned int i;
1646 palkovsky 1189
    static int counts = 0;
1190
 
1191
    /* Limit redrawing */
2025 jermar 1192
    counts = (counts + 1) % 8;
1646 palkovsky 1193
    if (counts)
1194
        return;
1195
 
2070 jermar 1196
    for (i = 0; i < MAX_ANIMATIONS; i++) {
4153 mejdrech 1197
        if ((!animations[i].animlen) || (!animations[i].initialized) ||
1198
            (!animations[i].enabled))
1646 palkovsky 1199
            continue;
4153 mejdrech 1200
 
1201
        draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
1202
        animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1646 palkovsky 1203
    }
1204
}
1205
 
1711 palkovsky 1206
 
4153 mejdrech 1207
static unsigned int pointer_x;
1208
static unsigned int pointer_y;
1209
static bool pointer_shown, pointer_enabled;
1711 palkovsky 1210
static int pointer_vport = -1;
1211
static int pointer_pixmap = -1;
1212
 
4153 mejdrech 1213
 
1214
static void mouse_show(void)
1711 palkovsky 1215
{
2070 jermar 1216
    int i, j;
1711 palkovsky 1217
    int visibility;
1218
    int color;
1219
    int bytepos;
4153 mejdrech 1220
 
1221
    if ((pointer_shown) || (!pointer_enabled))
1723 palkovsky 1222
        return;
4153 mejdrech 1223
 
1224
    /* Save image under the pointer. */
1711 palkovsky 1225
    if (pointer_vport == -1) {
4153 mejdrech 1226
        pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1711 palkovsky 1227
        if (pointer_vport < 0)
1228
            return;
1229
    } else {
1230
        viewports[pointer_vport].x = pointer_x;
1231
        viewports[pointer_vport].y = pointer_y;
1232
    }
4153 mejdrech 1233
 
1711 palkovsky 1234
    if (pointer_pixmap == -1)
1235
        pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
1236
    else
4153 mejdrech 1237
        copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
1238
 
1239
    /* Draw mouse pointer. */
2025 jermar 1240
    for (i = 0; i < pointer_height; i++)
1241
        for (j = 0; j < pointer_width; j++) {
1242
            bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
2070 jermar 1243
            visibility = pointer_mask_bits[bytepos] &
2619 jermar 1244
                (1 << (j % 8));
1711 palkovsky 1245
            if (visibility) {
2619 jermar 1246
                color = pointer_bits[bytepos] &
1247
                    (1 << (j % 8)) ? 0 : 0xffffff;
2025 jermar 1248
                if (pointer_x + j < screen.xres && pointer_y +
2619 jermar 1249
                    i < screen.yres)
2025 jermar 1250
                    putpixel(&viewports[0], pointer_x + j,
2619 jermar 1251
                        pointer_y + i, color);
1711 palkovsky 1252
            }
1253
        }
1254
    pointer_shown = 1;
1255
}
1256
 
4153 mejdrech 1257
 
1258
static void mouse_hide(void)
1711 palkovsky 1259
{
4153 mejdrech 1260
    /* Restore image under the pointer. */
1711 palkovsky 1261
    if (pointer_shown) {
1262
        draw_pixmap(pointer_vport, pointer_pixmap);
1263
        pointer_shown = 0;
1264
    }
1265
}
1266
 
4153 mejdrech 1267
 
1268
static void mouse_move(unsigned int x, unsigned int y)
1711 palkovsky 1269
{
1270
    mouse_hide();
1271
    pointer_x = x;
1272
    pointer_y = y;
1273
    mouse_show();
1274
}
1275
 
4153 mejdrech 1276
 
1277
static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1646 palkovsky 1278
{
4153 mejdrech 1279
    bool handled = true;
1280
    int retval = EOK;
1281
    int i, nvp;
1646 palkovsky 1282
    int newval;
4153 mejdrech 1283
 
1646 palkovsky 1284
    switch (IPC_GET_METHOD(*call)) {
1285
    case FB_ANIM_CREATE:
1286
        nvp = IPC_GET_ARG1(*call);
1287
        if (nvp == -1)
1288
            nvp = vp;
2025 jermar 1289
        if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1290
            !viewports[nvp].initialized) {
1646 palkovsky 1291
            retval = EINVAL;
1292
            break;
1293
        }
2025 jermar 1294
        for (i = 0; i < MAX_ANIMATIONS; i++) {
1295
            if (!animations[i].initialized)
1646 palkovsky 1296
                break;
1297
        }
1298
        if (i == MAX_ANIMATIONS) {
1299
            retval = ELIMIT;
1300
            break;
1301
        }
1302
        animations[i].initialized = 1;
1303
        animations[i].animlen = 0;
1304
        animations[i].pos = 0;
1305
        animations[i].enabled = 0;
1306
        animations[i].vp = nvp;
1307
        retval = i;
1308
        break;
1309
    case FB_ANIM_DROP:
1310
        i = IPC_GET_ARG1(*call);
1720 palkovsky 1311
        if (i >= MAX_ANIMATIONS || i < 0) {
1646 palkovsky 1312
            retval = EINVAL;
1313
            break;
1314
        }
1315
        animations[i].initialized = 0;
1316
        break;
1317
    case FB_ANIM_ADDPIXMAP:
1318
        i = IPC_GET_ARG1(*call);
2025 jermar 1319
        if (i >= MAX_ANIMATIONS || i < 0 ||
1320
            !animations[i].initialized) {
1646 palkovsky 1321
            retval = EINVAL;
1322
            break;
1323
        }
1324
        if (animations[i].animlen == MAX_ANIM_LEN) {
1325
            retval = ELIMIT;
1326
            break;
1327
        }
1328
        newval = IPC_GET_ARG2(*call);
2025 jermar 1329
        if (newval < 0 || newval > MAX_PIXMAPS ||
1330
            !pixmaps[newval].data) {
1646 palkovsky 1331
            retval = EINVAL;
1332
            break;
1333
        }
1334
        animations[i].pixmaps[animations[i].animlen++] = newval;
1335
        break;
1336
    case FB_ANIM_CHGVP:
1337
        i = IPC_GET_ARG1(*call);
1338
        if (i >= MAX_ANIMATIONS || i < 0) {
1339
            retval = EINVAL;
1340
            break;
1341
        }
1342
        nvp = IPC_GET_ARG2(*call);
1343
        if (nvp == -1)
1344
            nvp = vp;
2025 jermar 1345
        if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1346
            !viewports[nvp].initialized) {
1646 palkovsky 1347
            retval = EINVAL;
1348
            break;
1349
        }
1350
        animations[i].vp = nvp;
1351
        break;
1352
    case FB_ANIM_START:
1353
    case FB_ANIM_STOP:
1354
        i = IPC_GET_ARG1(*call);
1355
        if (i >= MAX_ANIMATIONS || i < 0) {
1356
            retval = EINVAL;
1357
            break;
1358
        }
1359
        newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
1360
        if (newval ^ animations[i].enabled) {
1361
            animations[i].enabled = newval;
1362
            anims_enabled += newval ? 1 : -1;
1363
        }
1364
        break;
1365
    default:
1366
        handled = 0;
1367
    }
1368
    if (handled)
2619 jermar 1369
        ipc_answer_0(callid, retval);
1646 palkovsky 1370
    return handled;
1371
}
1372
 
4153 mejdrech 1373
 
1374
/** Handler for messages concerning pixmap handling
1375
 *
1376
 */
1377
static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1552 palkovsky 1378
{
4153 mejdrech 1379
    bool handled = true;
1380
    int retval = EOK;
1381
    int i, nvp;
1382
 
1552 palkovsky 1383
    switch (IPC_GET_METHOD(*call)) {
1384
    case FB_VP_DRAW_PIXMAP:
1385
        nvp = IPC_GET_ARG1(*call);
1386
        if (nvp == -1)
1387
            nvp = vp;
2025 jermar 1388
        if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1389
            !viewports[nvp].initialized) {
1552 palkovsky 1390
            retval = EINVAL;
1391
            break;
1392
        }
1393
        i = IPC_GET_ARG2(*call);
1394
        retval = draw_pixmap(nvp, i);
1395
        break;
1396
    case FB_VP2PIXMAP:
1397
        nvp = IPC_GET_ARG1(*call);
1398
        if (nvp == -1)
1399
            nvp = vp;
2025 jermar 1400
        if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1401
            !viewports[nvp].initialized)
1552 palkovsky 1402
            retval = EINVAL;
1403
        else
1711 palkovsky 1404
            retval = save_vp_to_pixmap(&viewports[nvp]);
1552 palkovsky 1405
        break;
1406
    case FB_DROP_PIXMAP:
1407
        i = IPC_GET_ARG1(*call);
1408
        if (i >= MAX_PIXMAPS) {
1409
            retval = EINVAL;
1410
            break;
1411
        }
1412
        if (pixmaps[i].data) {
1413
            free(pixmaps[i].data);
1414
            pixmaps[i].data = NULL;
1415
        }
1416
        break;
1417
    default:
1418
        handled = 0;
1419
    }
4153 mejdrech 1420
 
1552 palkovsky 1421
    if (handled)
2619 jermar 1422
        ipc_answer_0(callid, retval);
1552 palkovsky 1423
    return handled;
1424
 
1425
}
1426
 
4153 mejdrech 1427
static int rgb_from_style(attr_rgb_t *rgb, int style)
1428
{
1429
    switch (style) {
1430
    case STYLE_NORMAL:
1431
        rgb->fg_color = color_table[COLOR_BLACK];
1432
        rgb->bg_color = color_table[COLOR_WHITE];
1433
        break;
1434
    case STYLE_EMPHASIS:
1435
        rgb->fg_color = color_table[COLOR_RED];
1436
        rgb->bg_color = color_table[COLOR_WHITE];
1437
        break;
1438
    default:
1439
        return EINVAL;
1440
    }
1441
 
1442
    return EOK;
1443
}
1444
 
1445
static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
1446
    ipcarg_t bg_color, ipcarg_t flags)
1447
{
1448
    fg_color = (fg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1449
    bg_color = (bg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1450
 
1451
    rgb->fg_color = color_table[fg_color];
1452
    rgb->bg_color = color_table[bg_color];
1453
 
1454
    return EOK;
1455
}
1456
 
1457
static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a)
1458
{
1459
    int rc;
1460
 
1461
    switch (a->t) {
1462
    case at_style:
1463
        rc = rgb_from_style(rgb, a->a.s.style);
1464
        break;
1465
    case at_idx:
1466
        rc = rgb_from_idx(rgb, a->a.i.fg_color,
1467
            a->a.i.bg_color, a->a.i.flags);
1468
        break;
1469
    case at_rgb:
1470
        *rgb = a->a.r;
1471
        rc = EOK;
1472
        break;
1473
    }
1474
 
1475
    return rc;
1476
}
1477
 
1478
static int fb_set_style(viewport_t *vport, ipcarg_t style)
1479
{
1480
    return rgb_from_style(&vport->attr, (int) style);
1481
}
1482
 
1483
static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
1484
    ipcarg_t bg_color, ipcarg_t flags)
1485
{
1486
    return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
1487
}
1488
 
1498 palkovsky 1489
/** Function for handling connections to FB
1490
 *
1491
 */
4153 mejdrech 1492
static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363 vana 1493
{
4153 mejdrech 1494
    unsigned int vp = 0;
1495
    viewport_t *vport = &viewports[vp];
1496
 
1485 palkovsky 1497
    if (client_connected) {
2619 jermar 1498
        ipc_answer_0(iid, ELIMIT);
1485 palkovsky 1499
        return;
1500
    }
4153 mejdrech 1501
 
1502
    /* Accept connection */
1503
    client_connected = true;
1504
    ipc_answer_0(iid, EOK);
1505
 
1506
    while (true) {
1507
        ipc_callid_t callid;
1508
        ipc_call_t call;
1509
        int retval;
1510
        unsigned int i;
1511
        int scroll;
4263 mejdrech 1512
        wchar_t ch;
4153 mejdrech 1513
        unsigned int row, col;
1514
 
1515
        if ((vport->cursor_active) || (anims_enabled))
2070 jermar 1516
            callid = async_get_call_timeout(&call, 250000);
1640 palkovsky 1517
        else
1518
            callid = async_get_call(&call);
4153 mejdrech 1519
 
1713 palkovsky 1520
        mouse_hide();
1500 palkovsky 1521
        if (!callid) {
1673 palkovsky 1522
            cursor_blink(vport);
1646 palkovsky 1523
            anims_tick();
1723 palkovsky 1524
            mouse_show();
1500 palkovsky 1525
            continue;
1526
        }
4153 mejdrech 1527
 
1547 palkovsky 1528
        if (shm_handle(callid, &call, vp))
1529
            continue;
4153 mejdrech 1530
 
1552 palkovsky 1531
        if (pixmap_handle(callid, &call, vp))
1532
            continue;
4153 mejdrech 1533
 
1646 palkovsky 1534
        if (anim_handle(callid, &call, vp))
1535
            continue;
4153 mejdrech 1536
 
1537
        switch (IPC_GET_METHOD(call)) {
1485 palkovsky 1538
        case IPC_M_PHONE_HUNGUP:
4153 mejdrech 1539
            client_connected = false;
1540
 
1541
            /* Cleanup other viewports */
2025 jermar 1542
            for (i = 1; i < MAX_VIEWPORTS; i++)
4153 mejdrech 1543
                vport->initialized = false;
1544
 
1545
            /* Exit thread */
1546
            return;
1547
 
1485 palkovsky 1548
        case FB_PUTCHAR:
4263 mejdrech 1549
            ch = IPC_GET_ARG1(call);
1485 palkovsky 1550
            row = IPC_GET_ARG2(call);
1551
            col = IPC_GET_ARG3(call);
4153 mejdrech 1552
 
1553
            if ((col >= vport->cols) || (row >= vport->rows)) {
1485 palkovsky 1554
                retval = EINVAL;
1555
                break;
1556
            }
2619 jermar 1557
            ipc_answer_0(callid, EOK);
4153 mejdrech 1558
 
4263 mejdrech 1559
            draw_char(vport, ch, col, row);
4153 mejdrech 1560
 
1561
            /* Message already answered */
1562
            continue;
1485 palkovsky 1563
        case FB_CLEAR:
4153 mejdrech 1564
            vport_clear(vport);
1565
            cursor_show(vport);
1566
            retval = EOK;
1485 palkovsky 1567
            break;
4153 mejdrech 1568
        case FB_CURSOR_GOTO:
1486 palkovsky 1569
            row = IPC_GET_ARG1(call);
1570
            col = IPC_GET_ARG2(call);
4153 mejdrech 1571
 
1572
            if ((col >= vport->cols) || (row >= vport->rows)) {
1486 palkovsky 1573
                retval = EINVAL;
1574
                break;
1575
            }
4153 mejdrech 1576
            retval = EOK;
1577
 
1673 palkovsky 1578
            cursor_hide(vport);
1486 palkovsky 1579
            vport->cur_col = col;
1580
            vport->cur_row = row;
4153 mejdrech 1581
            cursor_show(vport);
1582
            break;
1486 palkovsky 1583
        case FB_CURSOR_VISIBILITY:
1673 palkovsky 1584
            cursor_hide(vport);
1500 palkovsky 1585
            vport->cursor_active = IPC_GET_ARG1(call);
4153 mejdrech 1586
            cursor_show(vport);
1587
            retval = EOK;
1486 palkovsky 1588
            break;
1485 palkovsky 1589
        case FB_GET_CSIZE:
2619 jermar 1590
            ipc_answer_2(callid, EOK, vport->rows, vport->cols);
1485 palkovsky 1591
            continue;
1486 palkovsky 1592
        case FB_SCROLL:
4153 mejdrech 1593
            scroll = IPC_GET_ARG1(call);
1594
            if ((scroll > (int) vport->rows) || (scroll < (-(int) vport->rows))) {
1486 palkovsky 1595
                retval = EINVAL;
1596
                break;
1597
            }
1673 palkovsky 1598
            cursor_hide(vport);
4153 mejdrech 1599
            vport_scroll(vport, scroll);
1600
            cursor_show(vport);
1601
            retval = EOK;
1486 palkovsky 1602
            break;
1603
        case FB_VIEWPORT_SWITCH:
1604
            i = IPC_GET_ARG1(call);
4153 mejdrech 1605
            if (i >= MAX_VIEWPORTS) {
1486 palkovsky 1606
                retval = EINVAL;
1607
                break;
1608
            }
4153 mejdrech 1609
            if (!viewports[i].initialized) {
1486 palkovsky 1610
                retval = EADDRNOTAVAIL;
1611
                break;
1612
            }
1673 palkovsky 1613
            cursor_hide(vport);
1486 palkovsky 1614
            vp = i;
1615
            vport = &viewports[vp];
4153 mejdrech 1616
            cursor_show(vport);
1617
            retval = EOK;
1486 palkovsky 1618
            break;
1619
        case FB_VIEWPORT_CREATE:
4153 mejdrech 1620
            retval = vport_create(IPC_GET_ARG1(call) >> 16,
2619 jermar 1621
                IPC_GET_ARG1(call) & 0xffff,
1622
                IPC_GET_ARG2(call) >> 16,
1623
                IPC_GET_ARG2(call) & 0xffff);
1486 palkovsky 1624
            break;
1625
        case FB_VIEWPORT_DELETE:
1626
            i = IPC_GET_ARG1(call);
4153 mejdrech 1627
            if (i >= MAX_VIEWPORTS) {
1486 palkovsky 1628
                retval = EINVAL;
1629
                break;
1630
            }
4153 mejdrech 1631
            if (!viewports[i].initialized) {
1486 palkovsky 1632
                retval = EADDRNOTAVAIL;
1633
                break;
1634
            }
4153 mejdrech 1635
            viewports[i].initialized = false;
1636
            if (viewports[i].bgpixel)
1637
                free(viewports[i].bgpixel);
1638
            if (viewports[i].backbuf)
1639
                free(viewports[i].backbuf);
1640
            retval = EOK;
1486 palkovsky 1641
            break;
1642
        case FB_SET_STYLE:
4153 mejdrech 1643
            retval = fb_set_style(vport, IPC_GET_ARG1(call));
1486 palkovsky 1644
            break;
4153 mejdrech 1645
        case FB_SET_COLOR:
1646
            retval = fb_set_color(vport, IPC_GET_ARG1(call),
1647
                IPC_GET_ARG2(call), IPC_GET_ARG3(call));
1648
            break;
1649
        case FB_SET_RGB_COLOR:
1650
            vport->attr.fg_color = IPC_GET_ARG1(call);
1651
            vport->attr.bg_color = IPC_GET_ARG2(call);
1652
            retval = EOK;
1653
            break;
1486 palkovsky 1654
        case FB_GET_RESOLUTION:
2619 jermar 1655
            ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1486 palkovsky 1656
            continue;
1707 palkovsky 1657
        case FB_POINTER_MOVE:
4153 mejdrech 1658
            pointer_enabled = true;
1711 palkovsky 1659
            mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
4153 mejdrech 1660
            retval = EOK;
1707 palkovsky 1661
            break;
1485 palkovsky 1662
        default:
1663
            retval = ENOENT;
1664
        }
2619 jermar 1665
        ipc_answer_0(callid, retval);
1363 vana 1666
    }
1485 palkovsky 1667
}
1363 vana 1668
 
4153 mejdrech 1669
/** Initialization of framebuffer
1670
 *
1671
 */
1672
int fb_init(void)
1485 palkovsky 1673
{
1490 palkovsky 1674
    async_set_client_connection(fb_client_connection);
1485 palkovsky 1675
 
4153 mejdrech 1676
    void *fb_ph_addr = (void *) sysinfo_value("fb.address.physical");
1677
    unsigned int fb_offset = sysinfo_value("fb.offset");
1678
    unsigned int fb_width = sysinfo_value("fb.width");
1679
    unsigned int fb_height = sysinfo_value("fb.height");
1680
    unsigned int fb_scanline = sysinfo_value("fb.scanline");
1681
    unsigned int fb_visual = sysinfo_value("fb.visual");
1682
 
1683
    unsigned int fbsize = fb_scanline * fb_height;
1684
    void *fb_addr = as_get_mappable_page(fbsize);
1685
 
1686
    if (physmem_map(fb_ph_addr + fb_offset, fb_addr,
1687
        ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE) != 0)
1688
        return -1;
1689
 
1690
    if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1993 decky 1691
        return 0;
1692
 
1693
    return -1;
1363 vana 1694
}
1490 palkovsky 1695
 
4153 mejdrech 1696
/**
1649 cejka 1697
 * @}
1698
 */