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1363 vana 1
/*
3707 decky 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
4316 decky 33
 * @brief HelenOS graphical framebuffer.
1649 cejka 34
 * @ingroup fbs
35
 * @{
3707 decky 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>
3767 svoboda 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
 
3707 decky 68
#define DEFAULT_BGCOLOR  0xf0f0f0
69
#define DEFAULT_FGCOLOR  0x000000
1363 vana 70
 
4316 decky 71
#define GLYPH_UNAVAIL    '?'
4226 svoboda 72
 
3707 decky 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
 
3744 svoboda 78
/** Function to render a pixel from a RGB value. */
3707 decky 79
typedef void (*rgb_conv_t)(void *, uint32_t);
1363 vana 80
 
4316 decky 81
/** Function to render a bit mask. */
82
typedef void (*mask_conv_t)(void *, bool);
83
 
3744 svoboda 84
/** Function to draw a glyph. */
85
typedef void (*dg_t)(unsigned int x, unsigned int y, bool cursor,
4226 svoboda 86
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
3744 svoboda 87
 
1485 palkovsky 88
struct {
3707 decky 89
    uint8_t *fb_addr;
90
 
1875 jermar 91
    unsigned int xres;
92
    unsigned int yres;
3707 decky 93
 
1875 jermar 94
    unsigned int scanline;
3707 decky 95
    unsigned int glyphscanline;
96
 
1875 jermar 97
    unsigned int pixelbytes;
3707 decky 98
    unsigned int glyphbytes;
4316 decky 99
 
4233 svoboda 100
    /** Pre-rendered mask for rendering glyphs. Specific for the visual. */
101
    uint8_t *glyphs;
3707 decky 102
 
103
    rgb_conv_t rgb_conv;
4316 decky 104
    mask_conv_t mask_conv;
1485 palkovsky 105
} screen;
1363 vana 106
 
3767 svoboda 107
/** Backbuffer character cell. */
1485 palkovsky 108
typedef struct {
4211 svoboda 109
    uint32_t glyph;
3767 svoboda 110
    uint32_t fg_color;
111
    uint32_t bg_color;
112
} bb_cell_t;
113
 
114
typedef struct {
3707 decky 115
    bool initialized;
116
    unsigned int x;
117
    unsigned int y;
118
    unsigned int width;
119
    unsigned int height;
120
 
1485 palkovsky 121
    /* Text support in window */
3707 decky 122
    unsigned int cols;
123
    unsigned int rows;
124
 
3744 svoboda 125
    /*
126
     * Style and glyphs for text printing
127
     */
4316 decky 128
 
3767 svoboda 129
    /** Current attributes. */
130
    attr_rgb_t attr;
4316 decky 131
 
3707 decky 132
    uint8_t *bgpixel;
4316 decky 133
 
4233 svoboda 134
    /**
135
     * Glyph drawing function for this viewport.  Different viewports
136
     * might use different drawing functions depending on whether their
137
     * scanlines are aligned on a word boundary.
138
     */
3744 svoboda 139
    dg_t dglyph;
3707 decky 140
 
1485 palkovsky 141
    /* Auto-cursor position */
3707 decky 142
    bool cursor_active;
143
    unsigned int cur_col;
144
    unsigned int cur_row;
145
    bool cursor_shown;
146
 
147
    /* Back buffer */
3767 svoboda 148
    bb_cell_t *backbuf;
3707 decky 149
    unsigned int bbsize;
1485 palkovsky 150
} viewport_t;
1363 vana 151
 
1646 palkovsky 152
typedef struct {
3707 decky 153
    bool initialized;
154
    bool enabled;
1646 palkovsky 155
    unsigned int vp;
3707 decky 156
 
1646 palkovsky 157
    unsigned int pos;
158
    unsigned int animlen;
159
    unsigned int pixmaps[MAX_ANIM_LEN];
160
} animation_t;
3707 decky 161
 
1646 palkovsky 162
static animation_t animations[MAX_ANIMATIONS];
3707 decky 163
static bool anims_enabled;
1646 palkovsky 164
 
1552 palkovsky 165
typedef struct {
166
    unsigned int width;
167
    unsigned int height;
1781 jermar 168
    uint8_t *data;
1552 palkovsky 169
} pixmap_t;
3707 decky 170
 
1552 palkovsky 171
static pixmap_t pixmaps[MAX_PIXMAPS];
1485 palkovsky 172
static viewport_t viewports[128];
173
 
3707 decky 174
static bool client_connected = false;  /**< Allow only 1 connection */
1485 palkovsky 175
 
3767 svoboda 176
static uint32_t color_table[16] = {
4316 decky 177
    [COLOR_BLACK]       = 0x000000,
178
    [COLOR_BLUE]        = 0x0000f0,
179
    [COLOR_GREEN]       = 0x00f000,
180
    [COLOR_CYAN]        = 0x00f0f0,
181
    [COLOR_RED]         = 0xf00000,
182
    [COLOR_MAGENTA]     = 0xf000f0,
183
    [COLOR_YELLOW]      = 0xf0f000,
184
    [COLOR_WHITE]       = 0xf0f0f0,
185
 
186
    [8 + COLOR_BLACK]   = 0x000000,
187
    [8 + COLOR_BLUE]    = 0x0000ff,
188
    [8 + COLOR_GREEN]   = 0x00ff00,
189
    [8 + COLOR_CYAN]    = 0x00ffff,
190
    [8 + COLOR_RED]     = 0xff0000,
191
    [8 + COLOR_MAGENTA] = 0xff00ff,
192
    [8 + COLOR_YELLOW]  = 0xffff00,
193
    [8 + COLOR_WHITE]   = 0xffffff,
3767 svoboda 194
};
195
 
3792 svoboda 196
static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a);
3767 svoboda 197
static int rgb_from_style(attr_rgb_t *rgb, int style);
198
static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
199
    ipcarg_t bg_color, ipcarg_t flags);
200
 
201
static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
202
    ipcarg_t bg_color, ipcarg_t attr);
203
 
3744 svoboda 204
static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
4211 svoboda 205
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
3744 svoboda 206
static void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
4211 svoboda 207
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
3744 svoboda 208
 
3739 svoboda 209
static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
3723 svoboda 210
    unsigned int row);
211
 
212
 
3707 decky 213
#define RED(x, bits)                 ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))
214
#define GREEN(x, bits)               ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
215
#define BLUE(x, bits)                ((x >> (8 - bits)) & ((1 << bits) - 1))
1363 vana 216
 
3707 decky 217
#define COL2X(col)                   ((col) * FONT_WIDTH)
218
#define ROW2Y(row)                   ((row) * FONT_SCANLINES)
1363 vana 219
 
3707 decky 220
#define X2COL(x)                     ((x) / FONT_WIDTH)
221
#define Y2ROW(y)                     ((y) / FONT_SCANLINES)
1363 vana 222
 
3707 decky 223
#define FB_POS(x, y)                 ((y) * screen.scanline + (x) * screen.pixelbytes)
224
#define BB_POS(vport, col, row)      ((row) * vport->cols + (col))
225
#define GLYPH_POS(glyph, y, cursor)  (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
1875 jermar 226
 
1363 vana 227
 
3707 decky 228
/** ARGB 8:8:8:8 conversion
229
 *
230
 */
231
static void rgb_0888(void *dst, uint32_t rgb)
1363 vana 232
{
4316 decky 233
    *((uint32_t *) dst) = rgb & 0x00ffffff;
1363 vana 234
}
235
 
4316 decky 236
static void mask_0888(void *dst, bool mask)
237
{
238
    *((uint32_t *) dst) = (mask ? 0x00ffffff : 0);
239
}
1994 decky 240
 
4316 decky 241
 
3707 decky 242
/** ABGR 8:8:8:8 conversion
243
 *
244
 */
245
static void bgr_0888(void *dst, uint32_t rgb)
1994 decky 246
{
3707 decky 247
    *((uint32_t *) dst)
248
        = (BLUE(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | RED(rgb, 8);
1994 decky 249
}
250
 
3707 decky 251
 
3882 decky 252
/** RGB 8:8:8 conversion
3707 decky 253
 *
254
 */
255
static void rgb_888(void *dst, uint32_t rgb)
1363 vana 256
{
3710 decky 257
    ((uint8_t *) dst)[0] = BLUE(rgb, 8);
258
    ((uint8_t *) dst)[1] = GREEN(rgb, 8);
259
    ((uint8_t *) dst)[2] = RED(rgb, 8);
1363 vana 260
}
261
 
4316 decky 262
static void mask_888(void *dst, bool mask)
263
{
264
    if (mask) {
265
        ((uint8_t *) dst)[0] = 0xff;
266
        ((uint8_t *) dst)[1] = 0xff;
267
        ((uint8_t *) dst)[2] = 0xff;
268
    } else {
269
        ((uint8_t *) dst)[0] = 0;
270
        ((uint8_t *) dst)[1] = 0;
271
        ((uint8_t *) dst)[2] = 0;
272
    }
273
}
1363 vana 274
 
4316 decky 275
 
3882 decky 276
/** BGR 8:8:8 conversion
277
 *
278
 */
279
static void bgr_888(void *dst, uint32_t rgb)
280
{
281
    ((uint8_t *) dst)[0] = RED(rgb, 8);
282
    ((uint8_t *) dst)[1] = GREEN(rgb, 8);
283
    ((uint8_t *) dst)[2] = BLUE(rgb, 8);
284
}
285
 
286
 
3707 decky 287
/** RGB 5:5:5 conversion
288
 *
289
 */
290
static void rgb_555(void *dst, uint32_t rgb)
1993 decky 291
{
3707 decky 292
    *((uint16_t *) dst)
293
        = (RED(rgb, 5) << 10) | (GREEN(rgb, 5) << 5) | BLUE(rgb, 5);
1993 decky 294
}
295
 
4316 decky 296
static void mask_555(void *dst, bool mask)
297
{
298
    *((uint16_t *) dst) = (mask ? 0x7fff : 0);
299
}
1993 decky 300
 
4316 decky 301
 
3707 decky 302
/** RGB 5:6:5 conversion
303
 *
304
 */
305
static void rgb_565(void *dst, uint32_t rgb)
1363 vana 306
{
3707 decky 307
    *((uint16_t *) dst)
308
        = (RED(rgb, 5) << 11) | (GREEN(rgb, 6) << 5) | BLUE(rgb, 5);
1363 vana 309
}
310
 
4316 decky 311
static void mask_565(void *dst, bool mask)
312
{
313
    *((uint16_t *) dst) = (mask ? 0xffff : 0);
314
}
1363 vana 315
 
4316 decky 316
 
3707 decky 317
/** RGB 3:2:3
318
 *
319
 */
320
static void rgb_323(void *dst, uint32_t rgb)
1363 vana 321
{
3707 decky 322
    *((uint8_t *) dst)
323
        = ~((RED(rgb, 3) << 5) | (GREEN(rgb, 2) << 3) | BLUE(rgb, 3));
1363 vana 324
}
325
 
4316 decky 326
static void mask_323(void *dst, bool mask)
327
{
328
    *((uint8_t *) dst) = (mask ? 0xff : 0);
329
}
330
 
3725 svoboda 331
/** Draw a filled rectangle.
332
 *
333
 * @note Need real implementation that does not access VRAM twice.
4316 decky 334
 *
3725 svoboda 335
 */
3723 svoboda 336
static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
337
    unsigned int y1, uint32_t color)
338
{
4316 decky 339
    unsigned int x;
340
    unsigned int y;
3725 svoboda 341
    unsigned int copy_bytes;
4316 decky 342
 
343
    uint8_t *sp;
344
    uint8_t *dp;
3723 svoboda 345
    uint8_t cbuf[4];
4316 decky 346
 
347
    if ((y0 >= y1) || (x0 >= x1))
348
        return;
349
 
3723 svoboda 350
    screen.rgb_conv(cbuf, color);
4316 decky 351
 
3725 svoboda 352
    sp = &screen.fb_addr[FB_POS(x0, y0)];
353
    dp = sp;
4316 decky 354
 
3725 svoboda 355
    /* Draw the first line. */
356
    for (x = x0; x < x1; x++) {
357
        memcpy(dp, cbuf, screen.pixelbytes);
358
        dp += screen.pixelbytes;
3723 svoboda 359
    }
4316 decky 360
 
3725 svoboda 361
    dp = sp + screen.scanline;
362
    copy_bytes = (x1 - x0) * screen.pixelbytes;
4316 decky 363
 
3725 svoboda 364
    /* Draw the remaining lines by copying. */
365
    for (y = y0 + 1; y < y1; y++) {
366
        memcpy(dp, sp, copy_bytes);
367
        dp += screen.scanline;
368
    }
3723 svoboda 369
}
370
 
371
/** Redraw viewport.
1498 palkovsky 372
 *
3707 decky 373
 * @param vport Viewport to redraw
374
 *
1498 palkovsky 375
 */
3707 decky 376
static void vport_redraw(viewport_t *vport)
1485 palkovsky 377
{
4316 decky 378
    unsigned int row;
379
    unsigned int col;
380
 
3707 decky 381
    for (row = 0; row < vport->rows; row++) {
3723 svoboda 382
        for (col = 0; col < vport->cols; col++) {
3739 svoboda 383
            draw_vp_glyph(vport, false, col, row);
3707 decky 384
        }
1672 palkovsky 385
    }
4316 decky 386
 
3707 decky 387
    if (COL2X(vport->cols) < vport->width) {
3723 svoboda 388
        draw_filled_rect(
389
            vport->x + COL2X(vport->cols), vport->y,
390
            vport->x + vport->width, vport->y + vport->height,
3767 svoboda 391
            vport->attr.bg_color);
1672 palkovsky 392
    }
4316 decky 393
 
3707 decky 394
    if (ROW2Y(vport->rows) < vport->height) {
3723 svoboda 395
        draw_filled_rect(
396
            vport->x, vport->y + ROW2Y(vport->rows),
397
            vport->x + vport->width, vport->y + vport->height,
3767 svoboda 398
            vport->attr.bg_color);
1672 palkovsky 399
    }
1559 palkovsky 400
}
401
 
3767 svoboda 402
static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
403
    uint32_t bg_color)
404
{
4316 decky 405
    size_t i;
406
 
3767 svoboda 407
    for (i = 0; i < len; i++) {
408
        backbuf[i].glyph = 0;
409
        backbuf[i].fg_color = fg_color;
410
        backbuf[i].bg_color = bg_color;
411
    }
412
}
413
 
3724 svoboda 414
/** Clear viewport.
3707 decky 415
 *
416
 * @param vport Viewport to clear
417
 *
418
 */
419
static void vport_clear(viewport_t *vport)
1363 vana 420
{
3767 svoboda 421
    backbuf_clear(vport->backbuf, vport->cols * vport->rows,
422
        vport->attr.fg_color, vport->attr.bg_color);
3707 decky 423
    vport_redraw(vport);
1363 vana 424
}
425
 
3724 svoboda 426
/** Scroll viewport by the specified number of lines.
1485 palkovsky 427
 *
1709 jermar 428
 * @param vport Viewport to scroll
3707 decky 429
 * @param lines Number of lines to scroll
430
 *
1485 palkovsky 431
 */
3707 decky 432
static void vport_scroll(viewport_t *vport, int lines)
1363 vana 433
{
4316 decky 434
    unsigned int row;
435
    unsigned int col;
436
    unsigned int x;
437
    unsigned int y;
4232 svoboda 438
    uint32_t glyph;
3767 svoboda 439
    uint32_t fg_color;
440
    uint32_t bg_color;
4316 decky 441
    bb_cell_t *bbp;
442
    bb_cell_t *xbp;
443
 
3724 svoboda 444
    /*
3739 svoboda 445
     * Redraw.
446
     */
4316 decky 447
 
3739 svoboda 448
    y = vport->y;
449
    for (row = 0; row < vport->rows; row++) {
450
        x = vport->x;
451
        for (col = 0; col < vport->cols; col++) {
452
            if ((row + lines >= 0) && (row + lines < vport->rows)) {
3767 svoboda 453
                xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
454
                bbp = &vport->backbuf[BB_POS(vport, col, row)];
4316 decky 455
 
3767 svoboda 456
                glyph = xbp->glyph;
457
                fg_color = xbp->fg_color;
458
                bg_color = xbp->bg_color;
4316 decky 459
 
460
                if ((bbp->glyph == glyph)
461
                   && (bbp->fg_color == xbp->fg_color)
462
                   && (bbp->bg_color == xbp->bg_color)) {
3739 svoboda 463
                    x += FONT_WIDTH;
464
                    continue;
465
                }
466
            } else {
467
                glyph = 0;
3767 svoboda 468
                fg_color = vport->attr.fg_color;
469
                bg_color = vport->attr.bg_color;
3739 svoboda 470
            }
4316 decky 471
 
4233 svoboda 472
            (*vport->dglyph)(x, y, false, screen.glyphs, glyph,
3767 svoboda 473
                fg_color, bg_color);
3739 svoboda 474
            x += FONT_WIDTH;
475
        }
476
        y += FONT_SCANLINES;
477
    }
4316 decky 478
 
3739 svoboda 479
    /*
3724 svoboda 480
     * Scroll backbuffer.
481
     */
4316 decky 482
 
1672 palkovsky 483
    if (lines > 0) {
3739 svoboda 484
        memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
3767 svoboda 485
            vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
486
        backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
487
            vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
3707 decky 488
    } else {
3739 svoboda 489
        memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
3767 svoboda 490
            vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
491
        backbuf_clear(vport->backbuf, - vport->cols * lines,
492
            vport->attr.fg_color, vport->attr.bg_color);
1672 palkovsky 493
    }
494
}
495
 
3707 decky 496
/** Render glyphs
1558 palkovsky 497
 *
3707 decky 498
 * Convert glyphs from device independent font
499
 * description to current visual representation.
4316 decky 500
 *
1558 palkovsky 501
 */
4233 svoboda 502
static void render_glyphs(void)
1363 vana 503
{
3707 decky 504
    unsigned int glyph;
4316 decky 505
 
3707 decky 506
    for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
507
        unsigned int y;
4316 decky 508
 
3707 decky 509
        for (y = 0; y < FONT_SCANLINES; y++) {
510
            unsigned int x;
4316 decky 511
 
3707 decky 512
            for (x = 0; x < FONT_WIDTH; x++) {
4316 decky 513
                screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
514
                    (fb_font[glyph][y] & (1 << (7 - x))) ? 1 : 0);
515
 
516
                screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
517
                    (fb_font[glyph][y] & (1 << (7 - x))) ? 1 : 0);
3707 decky 518
            }
1509 palkovsky 519
        }
520
    }
1363 vana 521
}
522
 
1485 palkovsky 523
/** Create new viewport
1363 vana 524
 *
3707 decky 525
 * @param x      Origin of the viewport (x).
526
 * @param y      Origin of the viewport (y).
527
 * @param width  Width of the viewport.
528
 * @param height Height of the viewport.
529
 *
530
 * @return New viewport number.
531
 *
1363 vana 532
 */
3707 decky 533
static int vport_create(unsigned int x, unsigned int y,
534
    unsigned int width, unsigned int height)
1363 vana 535
{
3707 decky 536
    unsigned int i;
537
 
2070 jermar 538
    for (i = 0; i < MAX_VIEWPORTS; i++) {
1485 palkovsky 539
        if (!viewports[i].initialized)
1363 vana 540
            break;
541
    }
4316 decky 542
 
1485 palkovsky 543
    if (i == MAX_VIEWPORTS)
544
        return ELIMIT;
3707 decky 545
 
546
    unsigned int cols = width / FONT_WIDTH;
547
    unsigned int rows = height / FONT_SCANLINES;
3767 svoboda 548
    unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
3744 svoboda 549
    unsigned int word_size = sizeof(unsigned long);
3707 decky 550
 
3767 svoboda 551
    bb_cell_t *backbuf = (bb_cell_t *) malloc(bbsize);
3707 decky 552
    if (!backbuf)
553
        return ENOMEM;
554
 
555
    uint8_t *bgpixel = (uint8_t *) malloc(screen.pixelbytes);
556
    if (!bgpixel) {
557
        free(backbuf);
558
        return ENOMEM;
559
    }
4316 decky 560
 
3767 svoboda 561
    backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
3707 decky 562
    memset(bgpixel, 0, screen.pixelbytes);
563
 
1485 palkovsky 564
    viewports[i].x = x;
565
    viewports[i].y = y;
566
    viewports[i].width = width;
567
    viewports[i].height = height;
1363 vana 568
 
3707 decky 569
    viewports[i].cols = cols;
570
    viewports[i].rows = rows;
571
 
3767 svoboda 572
    viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
573
    viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
1363 vana 574
 
3707 decky 575
    viewports[i].bgpixel = bgpixel;
4316 decky 576
 
3744 svoboda 577
    /*
4316 decky 578
     * Conditions necessary to select aligned version:
579
     *  - word size is divisible by pixelbytes
580
     *  - cell scanline size is divisible by word size
581
     *  - cell scanlines are word-aligned
3744 svoboda 582
     *
583
     */
4316 decky 584
    if (((word_size % screen.pixelbytes) == 0)
585
        && ((FONT_WIDTH * screen.pixelbytes) % word_size == 0)
586
        && ((x * screen.pixelbytes) % word_size == 0)
587
        && (screen.scanline % word_size == 0)) {
3744 svoboda 588
        viewports[i].dglyph = draw_glyph_aligned;
589
    } else {
590
        viewports[i].dglyph = draw_glyph_fallback;
591
    }
4316 decky 592
 
1489 palkovsky 593
    viewports[i].cur_col = 0;
594
    viewports[i].cur_row = 0;
3707 decky 595
    viewports[i].cursor_active = false;
596
    viewports[i].cursor_shown = false;
597
 
598
    viewports[i].bbsize = bbsize;
599
    viewports[i].backbuf = backbuf;
600
 
601
    viewports[i].initialized = true;
602
 
4233 svoboda 603
    screen.rgb_conv(viewports[i].bgpixel, viewports[i].attr.bg_color);
3707 decky 604
 
1485 palkovsky 605
    return i;
1363 vana 606
}
607
 
3707 decky 608
 
1363 vana 609
/** Initialize framebuffer as a chardev output device
610
 *
3707 decky 611
 * @param addr   Address of the framebuffer
612
 * @param xres   Screen width in pixels
613
 * @param yres   Screen height in pixels
614
 * @param visual Bits per pixel (8, 16, 24, 32)
615
 * @param scan   Bytes per one scanline
1363 vana 616
 *
617
 */
3707 decky 618
static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
619
    unsigned int scan, unsigned int visual)
1363 vana 620
{
4316 decky 621
 
622
 
1993 decky 623
    switch (visual) {
624
    case VISUAL_INDIRECT_8:
3707 decky 625
        screen.rgb_conv = rgb_323;
4316 decky 626
        screen.mask_conv = mask_323;
1886 jermar 627
        screen.pixelbytes = 1;
628
        break;
1993 decky 629
    case VISUAL_RGB_5_5_5:
3707 decky 630
        screen.rgb_conv = rgb_555;
4316 decky 631
        screen.mask_conv = mask_555;
1886 jermar 632
        screen.pixelbytes = 2;
633
        break;
1993 decky 634
    case VISUAL_RGB_5_6_5:
3707 decky 635
        screen.rgb_conv = rgb_565;
4316 decky 636
        screen.mask_conv = mask_565;
1993 decky 637
        screen.pixelbytes = 2;
1886 jermar 638
        break;
1993 decky 639
    case VISUAL_RGB_8_8_8:
3707 decky 640
        screen.rgb_conv = rgb_888;
4316 decky 641
        screen.mask_conv = mask_888;
1993 decky 642
        screen.pixelbytes = 3;
643
        break;
3882 decky 644
    case VISUAL_BGR_8_8_8:
645
        screen.rgb_conv = bgr_888;
4316 decky 646
        screen.mask_conv = mask_888;
3882 decky 647
        screen.pixelbytes = 3;
648
        break;
1993 decky 649
    case VISUAL_RGB_8_8_8_0:
3707 decky 650
        screen.rgb_conv = rgb_888;
4316 decky 651
        screen.mask_conv = mask_888;
1886 jermar 652
        screen.pixelbytes = 4;
653
        break;
1993 decky 654
    case VISUAL_RGB_0_8_8_8:
3707 decky 655
        screen.rgb_conv = rgb_0888;
4316 decky 656
        screen.mask_conv = mask_0888;
1993 decky 657
        screen.pixelbytes = 4;
658
        break;
1994 decky 659
    case VISUAL_BGR_0_8_8_8:
3707 decky 660
        screen.rgb_conv = bgr_0888;
4316 decky 661
        screen.mask_conv = mask_0888;
1994 decky 662
        screen.pixelbytes = 4;
663
        break;
1993 decky 664
    default:
665
        return false;
1363 vana 666
    }
4316 decky 667
 
3707 decky 668
    screen.fb_addr = (unsigned char *) addr;
1485 palkovsky 669
    screen.xres = xres;
670
    screen.yres = yres;
671
    screen.scanline = scan;
1363 vana 672
 
3707 decky 673
    screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
674
    screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
4316 decky 675
 
676
    size_t glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
677
    uint8_t *glyphs = (uint8_t *) malloc(glyphsize);
4233 svoboda 678
    if (!glyphs)
679
        return false;
3707 decky 680
 
4233 svoboda 681
    memset(glyphs, 0, glyphsize);
682
    screen.glyphs = glyphs;
4316 decky 683
 
4233 svoboda 684
    render_glyphs();
685
 
1485 palkovsky 686
    /* Create first viewport */
3707 decky 687
    vport_create(0, 0, xres, yres);
1993 decky 688
 
689
    return true;
1485 palkovsky 690
}
1363 vana 691
 
3707 decky 692
 
3744 svoboda 693
/** Draw a glyph, takes advantage of alignment.
3707 decky 694
 *
3744 svoboda 695
 * This version can only be used if the following conditions are met:
3739 svoboda 696
 *
3744 svoboda 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
 *
4316 decky 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
 *
3739 svoboda 714
 */
3744 svoboda 715
static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
4211 svoboda 716
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
3739 svoboda 717
{
4316 decky 718
    unsigned int i;
719
    unsigned int yd;
720
    unsigned long fg_buf;
721
    unsigned long bg_buf;
3744 svoboda 722
    unsigned long mask;
4316 decky 723
 
3744 svoboda 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++) {
4316 decky 729
        screen.rgb_conv(&((uint8_t *) &fg_buf)[i * screen.pixelbytes],
3744 svoboda 730
            fg_color);
4316 decky 731
        screen.rgb_conv(&((uint8_t *) &bg_buf)[i * screen.pixelbytes],
3744 svoboda 732
            bg_color);
733
    }
4316 decky 734
 
3744 svoboda 735
    /* Pointer to the current position in the mask. */
4316 decky 736
    unsigned long *maskp = (unsigned long *) &glyphs[GLYPH_POS(glyph, 0, cursor)];
737
 
3744 svoboda 738
    /* Pointer to the current position on the screen. */
4316 decky 739
    unsigned long *dp = (unsigned long *) &screen.fb_addr[FB_POS(x, y)];
740
 
3744 svoboda 741
    /* Width of the character cell in words. */
4316 decky 742
    unsigned int ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
743
 
3744 svoboda 744
    /* Offset to add when moving to another screen scanline. */
4316 decky 745
    unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
746
 
3744 svoboda 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
        }
4316 decky 756
 
3744 svoboda 757
        /* Move to the beginning of the next scanline of the cell. */
758
        dp = (unsigned long *) ((uint8_t *) dp + d_add);
759
    }
3739 svoboda 760
}
761
 
3744 svoboda 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
 *
4316 decky 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
 *
3744 svoboda 775
 */
776
void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
4211 svoboda 777
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
3744 svoboda 778
{
4316 decky 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;
3744 svoboda 785
    uint8_t b;
4316 decky 786
 
3744 svoboda 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
    }
4316 decky 795
 
3744 svoboda 796
    /* Pointer to the current position on the screen. */
4316 decky 797
    uint8_t *dp = (uint8_t *) &screen.fb_addr[FB_POS(x, y)];
798
 
3744 svoboda 799
    /* Offset to add when moving to another screen scanline. */
4316 decky 800
    unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
801
 
3744 svoboda 802
    for (yd = 0; yd < FONT_SCANLINES; yd++) {
803
        /* Byte containing bits of the glyph scanline. */
4232 svoboda 804
        b = fb_font[glyph][yd];
4316 decky 805
 
3744 svoboda 806
        for (i = 0; i < FONT_WIDTH; i++) {
807
            /* Choose color based on the current bit. */
808
            sp = (b & 0x80) ? fg_buf : bg_buf;
4316 decky 809
 
3744 svoboda 810
            /* Copy the pixel. */
811
            for (j = 0; j < screen.pixelbytes; j++) {
812
                *dp++ = *sp++;
813
            }
4316 decky 814
 
3744 svoboda 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
 
4316 decky 824
/** Draw glyph at specified position in viewport.
3739 svoboda 825
 *
3707 decky 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
 */
3739 svoboda 832
static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
833
    unsigned int row)
1500 palkovsky 834
{
3707 decky 835
    unsigned int x = vport->x + COL2X(col);
836
    unsigned int y = vport->y + ROW2Y(row);
837
 
4316 decky 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
 
4233 svoboda 842
    (*vport->dglyph)(x, y, cursor, screen.glyphs, glyph,
3767 svoboda 843
        fg_color, bg_color);
3707 decky 844
}
845
 
846
/** Hide cursor if it is shown
847
 *
848
 */
849
static void cursor_hide(viewport_t *vport)
850
{
851
    if ((vport->cursor_active) && (vport->cursor_shown)) {
3739 svoboda 852
        draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
3707 decky 853
        vport->cursor_shown = false;
1500 palkovsky 854
    }
855
}
856
 
3707 decky 857
 
858
/** Show cursor if cursor showing is enabled
859
 *
860
 */
861
static void cursor_show(viewport_t *vport)
1500 palkovsky 862
{
863
    /* Do not check for cursor_shown */
864
    if (vport->cursor_active) {
3739 svoboda 865
        draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
3707 decky 866
        vport->cursor_shown = true;
1500 palkovsky 867
    }
868
}
869
 
3707 decky 870
 
871
/** Invert cursor, if it is enabled
872
 *
873
 */
874
static void cursor_blink(viewport_t *vport)
1500 palkovsky 875
{
876
    if (vport->cursor_shown)
1673 palkovsky 877
        cursor_hide(vport);
1500 palkovsky 878
    else
3707 decky 879
        cursor_show(vport);
1500 palkovsky 880
}
881
 
3707 decky 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
 *
1498 palkovsky 890
 */
4211 svoboda 891
static void draw_char(viewport_t *vport, wchar_t c, unsigned int col, unsigned int row)
1486 palkovsky 892
{
3767 svoboda 893
    bb_cell_t *bbp;
4316 decky 894
 
3707 decky 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);
4316 decky 899
 
3767 svoboda 900
    bbp = &vport->backbuf[BB_POS(vport, col, row)];
4232 svoboda 901
    bbp->glyph = fb_font_glyph(c);
3767 svoboda 902
    bbp->fg_color = vport->attr.fg_color;
903
    bbp->bg_color = vport->attr.bg_color;
4316 decky 904
 
3739 svoboda 905
    draw_vp_glyph(vport, false, col, row);
3707 decky 906
 
1489 palkovsky 907
    vport->cur_col = col;
908
    vport->cur_row = row;
3707 decky 909
 
1489 palkovsky 910
    vport->cur_col++;
2025 jermar 911
    if (vport->cur_col >= vport->cols) {
1489 palkovsky 912
        vport->cur_col = 0;
913
        vport->cur_row++;
914
        if (vport->cur_row >= vport->rows)
915
            vport->cur_row--;
1486 palkovsky 916
    }
3707 decky 917
 
918
    cursor_show(vport);
1486 palkovsky 919
}
920
 
4167 svoboda 921
/** Draw text data to viewport.
1552 palkovsky 922
 *
1709 jermar 923
 * @param vport Viewport id
4167 svoboda 924
 * @param data  Text data.
4316 decky 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
 *
1552 palkovsky 930
 */
4167 svoboda 931
static void draw_text_data(viewport_t *vport, keyfield_t *data, unsigned int x,
932
    unsigned int y, unsigned int w, unsigned int h)
1505 palkovsky 933
{
4316 decky 934
    unsigned int i;
935
    unsigned int j;
3767 svoboda 936
    bb_cell_t *bbp;
937
    attrs_t *a;
938
    attr_rgb_t rgb;
4316 decky 939
 
4167 svoboda 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;
4316 decky 944
 
4167 svoboda 945
            bbp = &vport->backbuf[BB_POS(vport, col, row)];
4316 decky 946
 
4167 svoboda 947
            a = &data[j * w + i].attrs;
948
            rgb_from_attr(&rgb, a);
4316 decky 949
 
4232 svoboda 950
            bbp->glyph = fb_font_glyph(data[j * w + i].character);
4167 svoboda 951
            bbp->fg_color = rgb.fg_color;
952
            bbp->bg_color = rgb.bg_color;
4316 decky 953
 
4167 svoboda 954
            draw_vp_glyph(vport, false, col, row);
955
        }
1505 palkovsky 956
    }
3707 decky 957
    cursor_show(vport);
1505 palkovsky 958
}
959
 
3707 decky 960
 
961
static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
1555 palkovsky 962
{
3707 decky 963
    int pm = *((int *) data);
964
    pixmap_t *pmap = &pixmaps[pm];
965
    unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
1555 palkovsky 966
 
3707 decky 967
    screen.rgb_conv(&pmap->data[pos], color);
968
}
969
 
970
 
971
static 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
 */
984
static int find_free_pixmap(void)
985
{
986
    unsigned int i;
987
 
988
    for (i = 0; i < MAX_PIXMAPS; i++)
1555 palkovsky 989
        if (!pixmaps[i].data)
990
            return i;
3707 decky 991
 
1555 palkovsky 992
    return -1;
993
}
994
 
995
 
3707 decky 996
/** Create a new pixmap and return appropriate ID
997
 *
998
 */
999
static int shm2pixmap(unsigned char *shm, size_t size)
1555 palkovsky 1000
{
1001
    int pm;
1002
    pixmap_t *pmap;
3707 decky 1003
 
1555 palkovsky 1004
    pm = find_free_pixmap();
1005
    if (pm == -1)
1006
        return ELIMIT;
3707 decky 1007
 
1555 palkovsky 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;
3707 decky 1016
 
1017
    ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
1018
 
1555 palkovsky 1019
    return pm;
1020
}
1021
 
3707 decky 1022
 
1552 palkovsky 1023
/** Handle shared memory communication calls
1024
 *
1025
 * Protocol for drawing pixmaps:
1026
 * - FB_PREPARE_SHM(client shm identification)
2025 jermar 1027
 * - IPC_M_AS_AREA_SEND
3707 decky 1028
 * - FB_DRAW_PPM(startx, starty)
1552 palkovsky 1029
 * - FB_DROP_SHM
1030
 *
1031
 * Protocol for text drawing
2025 jermar 1032
 * - IPC_M_AS_AREA_SEND
1552 palkovsky 1033
 * - FB_DRAW_TEXT_DATA
1034
 *
1035
 * @param callid Callid of the current call
3707 decky 1036
 * @param call   Current call data
1037
 * @param vp     Active viewport
1552 palkovsky 1038
 *
3707 decky 1039
 * @return false if the call was not handled byt this function, true otherwise
1040
 *
1041
 * Note: this function is not threads safe, you would have
1552 palkovsky 1042
 * to redefine static variables with __thread
3707 decky 1043
 *
1552 palkovsky 1044
 */
3707 decky 1045
static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1547 palkovsky 1046
{
1047
    static keyfield_t *interbuffer = NULL;
1048
    static size_t intersize = 0;
3707 decky 1049
 
1720 palkovsky 1050
    static unsigned char *shm = NULL;
1555 palkovsky 1051
    static ipcarg_t shm_id = 0;
1052
    static size_t shm_size;
3707 decky 1053
 
1054
    bool handled = true;
1055
    int retval = EOK;
1547 palkovsky 1056
    viewport_t *vport = &viewports[vp];
3707 decky 1057
    unsigned int x;
1058
    unsigned int y;
4167 svoboda 1059
    unsigned int w;
1060
    unsigned int h;
3707 decky 1061
 
1547 palkovsky 1062
    switch (IPC_GET_METHOD(*call)) {
2677 jermar 1063
    case IPC_M_SHARE_OUT:
1547 palkovsky 1064
        /* We accept one area for data interchange */
1555 palkovsky 1065
        if (IPC_GET_ARG1(*call) == shm_id) {
2141 jermar 1066
            void *dest = as_get_mappable_page(IPC_GET_ARG2(*call));
1555 palkovsky 1067
            shm_size = IPC_GET_ARG2(*call);
3707 decky 1068
            if (!ipc_answer_1(callid, EOK, (sysarg_t) dest))
1555 palkovsky 1069
                shm = dest;
1547 palkovsky 1070
            else
1555 palkovsky 1071
                shm_id = 0;
3707 decky 1072
 
1555 palkovsky 1073
            if (shm[0] != 'P')
3707 decky 1074
                return false;
1075
 
1076
            return true;
1547 palkovsky 1077
        } else {
1078
            intersize = IPC_GET_ARG2(*call);
2015 jermar 1079
            receive_comm_area(callid, call, (void *) &interbuffer);
1547 palkovsky 1080
        }
3707 decky 1081
        return true;
1547 palkovsky 1082
    case FB_PREPARE_SHM:
1555 palkovsky 1083
        if (shm_id)
1547 palkovsky 1084
            retval = EBUSY;
1085
        else
1555 palkovsky 1086
            shm_id = IPC_GET_ARG1(*call);
1547 palkovsky 1087
        break;
1088
 
1089
    case FB_DROP_SHM:
1555 palkovsky 1090
        if (shm) {
1091
            as_area_destroy(shm);
1092
            shm = NULL;
1547 palkovsky 1093
        }
1555 palkovsky 1094
        shm_id = 0;
1547 palkovsky 1095
        break;
3707 decky 1096
 
1555 palkovsky 1097
    case FB_SHM2PIXMAP:
1098
        if (!shm) {
1099
            retval = EINVAL;
1100
            break;
1101
        }
1102
        retval = shm2pixmap(shm, shm_size);
1103
        break;
1547 palkovsky 1104
    case FB_DRAW_PPM:
1555 palkovsky 1105
        if (!shm) {
1547 palkovsky 1106
            retval = EINVAL;
1107
            break;
1108
        }
1109
        x = IPC_GET_ARG1(*call);
1110
        y = IPC_GET_ARG2(*call);
3707 decky 1111
 
1112
        if ((x > vport->width) || (y > vport->height)) {
1547 palkovsky 1113
            retval = EINVAL;
1114
            break;
1115
        }
1116
 
2025 jermar 1117
        ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
3707 decky 1118
            IPC_GET_ARG2(*call), vport->width - x, vport->height - y, putpixel, (void *) vport);
1547 palkovsky 1119
        break;
1120
    case FB_DRAW_TEXT_DATA:
4167 svoboda 1121
        x = IPC_GET_ARG1(*call);
1122
        y = IPC_GET_ARG2(*call);
1123
        w = IPC_GET_ARG3(*call);
1124
        h = IPC_GET_ARG4(*call);
1547 palkovsky 1125
        if (!interbuffer) {
1126
            retval = EINVAL;
1127
            break;
1128
        }
4167 svoboda 1129
        if (x + w > vport->cols || y + h > vport->rows) {
1547 palkovsky 1130
            retval = EINVAL;
1131
            break;
1132
        }
4167 svoboda 1133
        if (intersize < w * h * sizeof(*interbuffer)) {
1134
            retval = EINVAL;
1135
            break;
1136
        }
1137
        draw_text_data(vport, interbuffer, x, y, w, h);
1547 palkovsky 1138
        break;
1139
    default:
3707 decky 1140
        handled = false;
1547 palkovsky 1141
    }
1142
 
1143
    if (handled)
2619 jermar 1144
        ipc_answer_0(callid, retval);
1547 palkovsky 1145
    return handled;
1146
}
1147
 
3707 decky 1148
 
1149
static void copy_vp_to_pixmap(viewport_t *vport, pixmap_t *pmap)
1552 palkovsky 1150
{
3707 decky 1151
    unsigned int width = vport->width;
1152
    unsigned int height = vport->height;
1153
 
1711 palkovsky 1154
    if (width + vport->x > screen.xres)
1155
        width = screen.xres - vport->x;
2301 decky 1156
    if (height + vport->y > screen.yres)
1711 palkovsky 1157
        height = screen.yres - vport->y;
2301 decky 1158
 
3707 decky 1159
    unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1160
    unsigned int realheight = pmap->height <= height ? pmap->height : height;
2301 decky 1161
 
3707 decky 1162
    unsigned int srcrowsize = vport->width * screen.pixelbytes;
1163
    unsigned int realrowsize = realwidth * screen.pixelbytes;
1164
 
1165
    unsigned int y;
2301 decky 1166
    for (y = 0; y < realheight; y++) {
3707 decky 1167
        unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1168
        memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1711 palkovsky 1169
    }
1170
}
1171
 
3707 decky 1172
 
1173
/** Save viewport to pixmap
1174
 *
1175
 */
1176
static int save_vp_to_pixmap(viewport_t *vport)
1711 palkovsky 1177
{
1178
    int pm;
1179
    pixmap_t *pmap;
3707 decky 1180
 
1552 palkovsky 1181
    pm = find_free_pixmap();
1182
    if (pm == -1)
1183
        return ELIMIT;
1184
 
1185
    pmap = &pixmaps[pm];
1186
    pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
1187
    if (!pmap->data)
1188
        return ENOMEM;
3707 decky 1189
 
1552 palkovsky 1190
    pmap->width = vport->width;
1191
    pmap->height = vport->height;
3707 decky 1192
 
1711 palkovsky 1193
    copy_vp_to_pixmap(vport, pmap);
1552 palkovsky 1194
 
1195
    return pm;
1196
}
1197
 
3707 decky 1198
 
1552 palkovsky 1199
/** Draw pixmap on screen
1200
 *
1201
 * @param vp Viewport to draw on
1202
 * @param pm Pixmap identifier
3707 decky 1203
 *
1552 palkovsky 1204
 */
1205
static int draw_pixmap(int vp, int pm)
1206
{
1207
    pixmap_t *pmap = &pixmaps[pm];
1208
    viewport_t *vport = &viewports[vp];
3707 decky 1209
 
1210
    unsigned int width = vport->width;
1211
    unsigned int height = vport->height;
1212
 
1711 palkovsky 1213
    if (width + vport->x > screen.xres)
1214
        width = screen.xres - vport->x;
1215
    if (height + vport->y > screen.yres)
1216
        height = screen.yres - vport->y;
3707 decky 1217
 
1552 palkovsky 1218
    if (!pmap->data)
1219
        return EINVAL;
3707 decky 1220
 
1221
    unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1222
    unsigned int realheight = pmap->height <= height ? pmap->height : height;
1223
 
1224
    unsigned int srcrowsize = vport->width * screen.pixelbytes;
1225
    unsigned int realrowsize = realwidth * screen.pixelbytes;
1226
 
1227
    unsigned int y;
2070 jermar 1228
    for (y = 0; y < realheight; y++) {
3707 decky 1229
        unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1230
        memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1552 palkovsky 1231
    }
3707 decky 1232
 
1233
    return EOK;
1552 palkovsky 1234
}
1235
 
3707 decky 1236
 
1237
/** Tick animation one step forward
1238
 *
1239
 */
1240
static void anims_tick(void)
1646 palkovsky 1241
{
3707 decky 1242
    unsigned int i;
1646 palkovsky 1243
    static int counts = 0;
1244
 
1245
    /* Limit redrawing */
2025 jermar 1246
    counts = (counts + 1) % 8;
1646 palkovsky 1247
    if (counts)
1248
        return;
4316 decky 1249
 
2070 jermar 1250
    for (i = 0; i < MAX_ANIMATIONS; i++) {
3707 decky 1251
        if ((!animations[i].animlen) || (!animations[i].initialized) ||
1252
            (!animations[i].enabled))
1646 palkovsky 1253
            continue;
3707 decky 1254
 
1255
        draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
1256
        animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1646 palkovsky 1257
    }
1258
}
1259
 
1711 palkovsky 1260
 
3707 decky 1261
static unsigned int pointer_x;
1262
static unsigned int pointer_y;
1263
static bool pointer_shown, pointer_enabled;
1711 palkovsky 1264
static int pointer_vport = -1;
1265
static int pointer_pixmap = -1;
1266
 
3707 decky 1267
 
1268
static void mouse_show(void)
1711 palkovsky 1269
{
2070 jermar 1270
    int i, j;
1711 palkovsky 1271
    int visibility;
1272
    int color;
1273
    int bytepos;
3707 decky 1274
 
1275
    if ((pointer_shown) || (!pointer_enabled))
1723 palkovsky 1276
        return;
3707 decky 1277
 
3723 svoboda 1278
    /* Save image under the pointer. */
1711 palkovsky 1279
    if (pointer_vport == -1) {
3707 decky 1280
        pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1711 palkovsky 1281
        if (pointer_vport < 0)
1282
            return;
1283
    } else {
1284
        viewports[pointer_vport].x = pointer_x;
1285
        viewports[pointer_vport].y = pointer_y;
1286
    }
3707 decky 1287
 
1711 palkovsky 1288
    if (pointer_pixmap == -1)
1289
        pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
1290
    else
3707 decky 1291
        copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
1292
 
3723 svoboda 1293
    /* Draw mouse pointer. */
2025 jermar 1294
    for (i = 0; i < pointer_height; i++)
1295
        for (j = 0; j < pointer_width; j++) {
1296
            bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
2070 jermar 1297
            visibility = pointer_mask_bits[bytepos] &
2619 jermar 1298
                (1 << (j % 8));
1711 palkovsky 1299
            if (visibility) {
2619 jermar 1300
                color = pointer_bits[bytepos] &
1301
                    (1 << (j % 8)) ? 0 : 0xffffff;
2025 jermar 1302
                if (pointer_x + j < screen.xres && pointer_y +
2619 jermar 1303
                    i < screen.yres)
2025 jermar 1304
                    putpixel(&viewports[0], pointer_x + j,
2619 jermar 1305
                        pointer_y + i, color);
1711 palkovsky 1306
            }
1307
        }
1308
    pointer_shown = 1;
1309
}
1310
 
3707 decky 1311
 
1312
static void mouse_hide(void)
1711 palkovsky 1313
{
3723 svoboda 1314
    /* Restore image under the pointer. */
1711 palkovsky 1315
    if (pointer_shown) {
1316
        draw_pixmap(pointer_vport, pointer_pixmap);
1317
        pointer_shown = 0;
1318
    }
1319
}
1320
 
3707 decky 1321
 
1322
static void mouse_move(unsigned int x, unsigned int y)
1711 palkovsky 1323
{
1324
    mouse_hide();
1325
    pointer_x = x;
1326
    pointer_y = y;
1327
    mouse_show();
1328
}
1329
 
3707 decky 1330
 
1331
static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1646 palkovsky 1332
{
3707 decky 1333
    bool handled = true;
1334
    int retval = EOK;
1335
    int i, nvp;
1646 palkovsky 1336
    int newval;
3707 decky 1337
 
1646 palkovsky 1338
    switch (IPC_GET_METHOD(*call)) {
1339
    case FB_ANIM_CREATE:
1340
        nvp = IPC_GET_ARG1(*call);
1341
        if (nvp == -1)
1342
            nvp = vp;
2025 jermar 1343
        if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1344
            !viewports[nvp].initialized) {
1646 palkovsky 1345
            retval = EINVAL;
1346
            break;
1347
        }
2025 jermar 1348
        for (i = 0; i < MAX_ANIMATIONS; i++) {
1349
            if (!animations[i].initialized)
1646 palkovsky 1350
                break;
1351
        }
1352
        if (i == MAX_ANIMATIONS) {
1353
            retval = ELIMIT;
1354
            break;
1355
        }
1356
        animations[i].initialized = 1;
1357
        animations[i].animlen = 0;
1358
        animations[i].pos = 0;
1359
        animations[i].enabled = 0;
1360
        animations[i].vp = nvp;
1361
        retval = i;
1362
        break;
1363
    case FB_ANIM_DROP:
1364
        i = IPC_GET_ARG1(*call);
1720 palkovsky 1365
        if (i >= MAX_ANIMATIONS || i < 0) {
1646 palkovsky 1366
            retval = EINVAL;
1367
            break;
1368
        }
1369
        animations[i].initialized = 0;
1370
        break;
1371
    case FB_ANIM_ADDPIXMAP:
1372
        i = IPC_GET_ARG1(*call);
2025 jermar 1373
        if (i >= MAX_ANIMATIONS || i < 0 ||
1374
            !animations[i].initialized) {
1646 palkovsky 1375
            retval = EINVAL;
1376
            break;
1377
        }
1378
        if (animations[i].animlen == MAX_ANIM_LEN) {
1379
            retval = ELIMIT;
1380
            break;
1381
        }
1382
        newval = IPC_GET_ARG2(*call);
2025 jermar 1383
        if (newval < 0 || newval > MAX_PIXMAPS ||
1384
            !pixmaps[newval].data) {
1646 palkovsky 1385
            retval = EINVAL;
1386
            break;
1387
        }
1388
        animations[i].pixmaps[animations[i].animlen++] = newval;
1389
        break;
1390
    case FB_ANIM_CHGVP:
1391
        i = IPC_GET_ARG1(*call);
1392
        if (i >= MAX_ANIMATIONS || i < 0) {
1393
            retval = EINVAL;
1394
            break;
1395
        }
1396
        nvp = IPC_GET_ARG2(*call);
1397
        if (nvp == -1)
1398
            nvp = vp;
2025 jermar 1399
        if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1400
            !viewports[nvp].initialized) {
1646 palkovsky 1401
            retval = EINVAL;
1402
            break;
1403
        }
1404
        animations[i].vp = nvp;
1405
        break;
1406
    case FB_ANIM_START:
1407
    case FB_ANIM_STOP:
1408
        i = IPC_GET_ARG1(*call);
1409
        if (i >= MAX_ANIMATIONS || i < 0) {
1410
            retval = EINVAL;
1411
            break;
1412
        }
1413
        newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
1414
        if (newval ^ animations[i].enabled) {
1415
            animations[i].enabled = newval;
1416
            anims_enabled += newval ? 1 : -1;
1417
        }
1418
        break;
1419
    default:
1420
        handled = 0;
1421
    }
1422
    if (handled)
2619 jermar 1423
        ipc_answer_0(callid, retval);
1646 palkovsky 1424
    return handled;
1425
}
1426
 
3707 decky 1427
 
1428
/** Handler for messages concerning pixmap handling
1429
 *
1430
 */
1431
static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1552 palkovsky 1432
{
3707 decky 1433
    bool handled = true;
1434
    int retval = EOK;
1435
    int i, nvp;
1436
 
1552 palkovsky 1437
    switch (IPC_GET_METHOD(*call)) {
1438
    case FB_VP_DRAW_PIXMAP:
1439
        nvp = IPC_GET_ARG1(*call);
1440
        if (nvp == -1)
1441
            nvp = vp;
2025 jermar 1442
        if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1443
            !viewports[nvp].initialized) {
1552 palkovsky 1444
            retval = EINVAL;
1445
            break;
1446
        }
1447
        i = IPC_GET_ARG2(*call);
1448
        retval = draw_pixmap(nvp, i);
1449
        break;
1450
    case FB_VP2PIXMAP:
1451
        nvp = IPC_GET_ARG1(*call);
1452
        if (nvp == -1)
1453
            nvp = vp;
2025 jermar 1454
        if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1455
            !viewports[nvp].initialized)
1552 palkovsky 1456
            retval = EINVAL;
1457
        else
1711 palkovsky 1458
            retval = save_vp_to_pixmap(&viewports[nvp]);
1552 palkovsky 1459
        break;
1460
    case FB_DROP_PIXMAP:
1461
        i = IPC_GET_ARG1(*call);
1462
        if (i >= MAX_PIXMAPS) {
1463
            retval = EINVAL;
1464
            break;
1465
        }
1466
        if (pixmaps[i].data) {
1467
            free(pixmaps[i].data);
1468
            pixmaps[i].data = NULL;
1469
        }
1470
        break;
1471
    default:
1472
        handled = 0;
1473
    }
3707 decky 1474
 
1552 palkovsky 1475
    if (handled)
2619 jermar 1476
        ipc_answer_0(callid, retval);
1552 palkovsky 1477
    return handled;
1478
 
1479
}
1480
 
3767 svoboda 1481
static int rgb_from_style(attr_rgb_t *rgb, int style)
1482
{
1483
    switch (style) {
1484
    case STYLE_NORMAL:
1485
        rgb->fg_color = color_table[COLOR_BLACK];
1486
        rgb->bg_color = color_table[COLOR_WHITE];
1487
        break;
1488
    case STYLE_EMPHASIS:
1489
        rgb->fg_color = color_table[COLOR_RED];
1490
        rgb->bg_color = color_table[COLOR_WHITE];
1491
        break;
1492
    default:
1493
        return EINVAL;
1494
    }
1495
 
1496
    return EOK;
1497
}
1498
 
1499
static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
1500
    ipcarg_t bg_color, ipcarg_t flags)
1501
{
1502
    fg_color = (fg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1503
    bg_color = (bg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1504
 
1505
    rgb->fg_color = color_table[fg_color];
1506
    rgb->bg_color = color_table[bg_color];
1507
 
1508
    return EOK;
1509
}
1510
 
3792 svoboda 1511
static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a)
1512
{
1513
    int rc;
1514
 
1515
    switch (a->t) {
1516
    case at_style:
1517
        rc = rgb_from_style(rgb, a->a.s.style);
1518
        break;
1519
    case at_idx:
1520
        rc = rgb_from_idx(rgb, a->a.i.fg_color,
1521
            a->a.i.bg_color, a->a.i.flags);
1522
        break;
1523
    case at_rgb:
1524
        *rgb = a->a.r;
1525
        rc = EOK;
1526
        break;
1527
    }
1528
 
1529
    return rc;
1530
}
1531
 
3767 svoboda 1532
static int fb_set_style(viewport_t *vport, ipcarg_t style)
1533
{
1534
    return rgb_from_style(&vport->attr, (int) style);
1535
}
1536
 
1537
static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
1538
    ipcarg_t bg_color, ipcarg_t flags)
1539
{
1540
    return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
1541
}
1542
 
1498 palkovsky 1543
/** Function for handling connections to FB
1544
 *
1545
 */
3707 decky 1546
static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363 vana 1547
{
3707 decky 1548
    unsigned int vp = 0;
1549
    viewport_t *vport = &viewports[vp];
1550
 
1485 palkovsky 1551
    if (client_connected) {
2619 jermar 1552
        ipc_answer_0(iid, ELIMIT);
1485 palkovsky 1553
        return;
1554
    }
3707 decky 1555
 
1556
    /* Accept connection */
1557
    client_connected = true;
1558
    ipc_answer_0(iid, EOK);
1559
 
1560
    while (true) {
1561
        ipc_callid_t callid;
1562
        ipc_call_t call;
1563
        int retval;
1564
        unsigned int i;
1565
        int scroll;
4232 svoboda 1566
        wchar_t ch;
3707 decky 1567
        unsigned int row, col;
1568
 
1569
        if ((vport->cursor_active) || (anims_enabled))
2070 jermar 1570
            callid = async_get_call_timeout(&call, 250000);
1640 palkovsky 1571
        else
1572
            callid = async_get_call(&call);
3707 decky 1573
 
1713 palkovsky 1574
        mouse_hide();
1500 palkovsky 1575
        if (!callid) {
1673 palkovsky 1576
            cursor_blink(vport);
1646 palkovsky 1577
            anims_tick();
1723 palkovsky 1578
            mouse_show();
1500 palkovsky 1579
            continue;
1580
        }
3707 decky 1581
 
1547 palkovsky 1582
        if (shm_handle(callid, &call, vp))
1583
            continue;
3707 decky 1584
 
1552 palkovsky 1585
        if (pixmap_handle(callid, &call, vp))
1586
            continue;
3707 decky 1587
 
1646 palkovsky 1588
        if (anim_handle(callid, &call, vp))
1589
            continue;
3707 decky 1590
 
1591
        switch (IPC_GET_METHOD(call)) {
1485 palkovsky 1592
        case IPC_M_PHONE_HUNGUP:
3707 decky 1593
            client_connected = false;
1594
 
1595
            /* Cleanup other viewports */
2025 jermar 1596
            for (i = 1; i < MAX_VIEWPORTS; i++)
3707 decky 1597
                vport->initialized = false;
1598
 
1599
            /* Exit thread */
1600
            return;
1601
 
1485 palkovsky 1602
        case FB_PUTCHAR:
4232 svoboda 1603
            ch = IPC_GET_ARG1(call);
1485 palkovsky 1604
            row = IPC_GET_ARG2(call);
1605
            col = IPC_GET_ARG3(call);
3707 decky 1606
 
1607
            if ((col >= vport->cols) || (row >= vport->rows)) {
1485 palkovsky 1608
                retval = EINVAL;
1609
                break;
1610
            }
2619 jermar 1611
            ipc_answer_0(callid, EOK);
3707 decky 1612
 
4232 svoboda 1613
            draw_char(vport, ch, col, row);
3707 decky 1614
 
1615
            /* Message already answered */
1616
            continue;
1485 palkovsky 1617
        case FB_CLEAR:
3707 decky 1618
            vport_clear(vport);
1619
            cursor_show(vport);
1620
            retval = EOK;
1485 palkovsky 1621
            break;
3707 decky 1622
        case FB_CURSOR_GOTO:
1486 palkovsky 1623
            row = IPC_GET_ARG1(call);
1624
            col = IPC_GET_ARG2(call);
3707 decky 1625
 
1626
            if ((col >= vport->cols) || (row >= vport->rows)) {
1486 palkovsky 1627
                retval = EINVAL;
1628
                break;
1629
            }
3707 decky 1630
            retval = EOK;
1631
 
1673 palkovsky 1632
            cursor_hide(vport);
1486 palkovsky 1633
            vport->cur_col = col;
1634
            vport->cur_row = row;
3707 decky 1635
            cursor_show(vport);
1636
            break;
1486 palkovsky 1637
        case FB_CURSOR_VISIBILITY:
1673 palkovsky 1638
            cursor_hide(vport);
1500 palkovsky 1639
            vport->cursor_active = IPC_GET_ARG1(call);
3707 decky 1640
            cursor_show(vport);
1641
            retval = EOK;
1486 palkovsky 1642
            break;
1485 palkovsky 1643
        case FB_GET_CSIZE:
2619 jermar 1644
            ipc_answer_2(callid, EOK, vport->rows, vport->cols);
1485 palkovsky 1645
            continue;
1486 palkovsky 1646
        case FB_SCROLL:
3707 decky 1647
            scroll = IPC_GET_ARG1(call);
1648
            if ((scroll > (int) vport->rows) || (scroll < (-(int) vport->rows))) {
1486 palkovsky 1649
                retval = EINVAL;
1650
                break;
1651
            }
1673 palkovsky 1652
            cursor_hide(vport);
3707 decky 1653
            vport_scroll(vport, scroll);
1654
            cursor_show(vport);
1655
            retval = EOK;
1486 palkovsky 1656
            break;
1657
        case FB_VIEWPORT_SWITCH:
1658
            i = IPC_GET_ARG1(call);
3707 decky 1659
            if (i >= MAX_VIEWPORTS) {
1486 palkovsky 1660
                retval = EINVAL;
1661
                break;
1662
            }
3707 decky 1663
            if (!viewports[i].initialized) {
1486 palkovsky 1664
                retval = EADDRNOTAVAIL;
1665
                break;
1666
            }
1673 palkovsky 1667
            cursor_hide(vport);
1486 palkovsky 1668
            vp = i;
1669
            vport = &viewports[vp];
3707 decky 1670
            cursor_show(vport);
1671
            retval = EOK;
1486 palkovsky 1672
            break;
1673
        case FB_VIEWPORT_CREATE:
3707 decky 1674
            retval = vport_create(IPC_GET_ARG1(call) >> 16,
2619 jermar 1675
                IPC_GET_ARG1(call) & 0xffff,
1676
                IPC_GET_ARG2(call) >> 16,
1677
                IPC_GET_ARG2(call) & 0xffff);
1486 palkovsky 1678
            break;
1679
        case FB_VIEWPORT_DELETE:
1680
            i = IPC_GET_ARG1(call);
3707 decky 1681
            if (i >= MAX_VIEWPORTS) {
1486 palkovsky 1682
                retval = EINVAL;
1683
                break;
1684
            }
3707 decky 1685
            if (!viewports[i].initialized) {
1486 palkovsky 1686
                retval = EADDRNOTAVAIL;
1687
                break;
1688
            }
3707 decky 1689
            viewports[i].initialized = false;
1690
            if (viewports[i].bgpixel)
1691
                free(viewports[i].bgpixel);
1692
            if (viewports[i].backbuf)
1693
                free(viewports[i].backbuf);
1694
            retval = EOK;
1486 palkovsky 1695
            break;
1696
        case FB_SET_STYLE:
3767 svoboda 1697
            retval = fb_set_style(vport, IPC_GET_ARG1(call));
1698
            break;
1699
        case FB_SET_COLOR:
1700
            retval = fb_set_color(vport, IPC_GET_ARG1(call),
1701
                IPC_GET_ARG2(call), IPC_GET_ARG3(call));
1702
            break;
1703
        case FB_SET_RGB_COLOR:
1704
            vport->attr.fg_color = IPC_GET_ARG1(call);
1705
            vport->attr.bg_color = IPC_GET_ARG2(call);
3707 decky 1706
            retval = EOK;
1486 palkovsky 1707
            break;
1708
        case FB_GET_RESOLUTION:
2619 jermar 1709
            ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1486 palkovsky 1710
            continue;
1707 palkovsky 1711
        case FB_POINTER_MOVE:
3707 decky 1712
            pointer_enabled = true;
1711 palkovsky 1713
            mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
3707 decky 1714
            retval = EOK;
1707 palkovsky 1715
            break;
1485 palkovsky 1716
        default:
1717
            retval = ENOENT;
1718
        }
2619 jermar 1719
        ipc_answer_0(callid, retval);
1363 vana 1720
    }
1485 palkovsky 1721
}
1363 vana 1722
 
3707 decky 1723
/** Initialization of framebuffer
1724
 *
1725
 */
1726
int fb_init(void)
1485 palkovsky 1727
{
1490 palkovsky 1728
    async_set_client_connection(fb_client_connection);
1485 palkovsky 1729
 
3707 decky 1730
    void *fb_ph_addr = (void *) sysinfo_value("fb.address.physical");
1731
    unsigned int fb_offset = sysinfo_value("fb.offset");
1732
    unsigned int fb_width = sysinfo_value("fb.width");
1733
    unsigned int fb_height = sysinfo_value("fb.height");
1734
    unsigned int fb_scanline = sysinfo_value("fb.scanline");
1735
    unsigned int fb_visual = sysinfo_value("fb.visual");
1736
 
1737
    unsigned int fbsize = fb_scanline * fb_height;
1738
    void *fb_addr = as_get_mappable_page(fbsize);
1739
 
3908 decky 1740
    if (physmem_map(fb_ph_addr + fb_offset, fb_addr,
1741
        ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE) != 0)
1742
        return -1;
3707 decky 1743
 
1744
    if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1993 decky 1745
        return 0;
1746
 
1747
    return -1;
1363 vana 1748
}
1490 palkovsky 1749
 
3707 decky 1750
/**
1649 cejka 1751
 * @}
1752
 */