Subversion Repositories HelenOS

Rev

Rev 3882 | Rev 4167 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
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
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
 
3707 decky 71
#define MAX_ANIM_LEN     8
72
#define MAX_ANIMATIONS   4
73
#define MAX_PIXMAPS      256  /**< Maximum number of saved pixmaps */
74
#define MAX_VIEWPORTS    128  /**< Viewport is a rectangular area on the screen */
1363 vana 75
 
3744 svoboda 76
/** Function to render a pixel from a RGB value. */
3707 decky 77
typedef void (*rgb_conv_t)(void *, uint32_t);
1363 vana 78
 
3744 svoboda 79
/** Function to draw a glyph. */
80
typedef void (*dg_t)(unsigned int x, unsigned int y, bool cursor,
81
    uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color);
82
 
1485 palkovsky 83
struct {
3707 decky 84
    uint8_t *fb_addr;
85
 
1875 jermar 86
    unsigned int xres;
87
    unsigned int yres;
3707 decky 88
 
1875 jermar 89
    unsigned int scanline;
3707 decky 90
    unsigned int glyphscanline;
91
 
1875 jermar 92
    unsigned int pixelbytes;
3707 decky 93
    unsigned int glyphbytes;
94
 
95
    rgb_conv_t rgb_conv;
1485 palkovsky 96
} screen;
1363 vana 97
 
3767 svoboda 98
/** Backbuffer character cell. */
1485 palkovsky 99
typedef struct {
3767 svoboda 100
    uint8_t glyph;
101
    uint32_t fg_color;
102
    uint32_t bg_color;
103
} bb_cell_t;
104
 
105
typedef struct {
3707 decky 106
    bool initialized;
107
    unsigned int x;
108
    unsigned int y;
109
    unsigned int width;
110
    unsigned int height;
111
 
1485 palkovsky 112
    /* Text support in window */
3707 decky 113
    unsigned int cols;
114
    unsigned int rows;
115
 
3744 svoboda 116
    /*
117
     * Style and glyphs for text printing
118
     */
119
 
3767 svoboda 120
    /** Current attributes. */
121
    attr_rgb_t attr;
3744 svoboda 122
 
123
    /** Pre-rendered mask for rendering glyphs. Different viewports
124
     * might use different drawing functions depending on whether their
125
     * scanlines are aligned on a word boundary.*/
3707 decky 126
    uint8_t *glyphs;
3744 svoboda 127
 
3707 decky 128
    uint8_t *bgpixel;
3744 svoboda 129
 
130
    /** Glyph drawing function for this viewport. */
131
    dg_t dglyph;
3707 decky 132
 
1485 palkovsky 133
    /* Auto-cursor position */
3707 decky 134
    bool cursor_active;
135
    unsigned int cur_col;
136
    unsigned int cur_row;
137
    bool cursor_shown;
138
 
139
    /* Back buffer */
3767 svoboda 140
    bb_cell_t *backbuf;
3707 decky 141
    unsigned int bbsize;
1485 palkovsky 142
} viewport_t;
1363 vana 143
 
1646 palkovsky 144
typedef struct {
3707 decky 145
    bool initialized;
146
    bool enabled;
1646 palkovsky 147
    unsigned int vp;
3707 decky 148
 
1646 palkovsky 149
    unsigned int pos;
150
    unsigned int animlen;
151
    unsigned int pixmaps[MAX_ANIM_LEN];
152
} animation_t;
3707 decky 153
 
1646 palkovsky 154
static animation_t animations[MAX_ANIMATIONS];
3707 decky 155
static bool anims_enabled;
1646 palkovsky 156
 
1552 palkovsky 157
typedef struct {
158
    unsigned int width;
159
    unsigned int height;
1781 jermar 160
    uint8_t *data;
1552 palkovsky 161
} pixmap_t;
3707 decky 162
 
1552 palkovsky 163
static pixmap_t pixmaps[MAX_PIXMAPS];
1485 palkovsky 164
static viewport_t viewports[128];
165
 
3707 decky 166
static bool client_connected = false;  /**< Allow only 1 connection */
1485 palkovsky 167
 
3767 svoboda 168
static uint32_t color_table[16] = {
169
    [COLOR_BLACK]       = 0x000000,
170
    [COLOR_BLUE]        = 0x0000f0,
171
    [COLOR_GREEN]       = 0x00f000,
172
    [COLOR_CYAN]        = 0x00f0f0,
173
    [COLOR_RED]     = 0xf00000,
174
    [COLOR_MAGENTA]     = 0xf000f0,
175
    [COLOR_YELLOW]      = 0xf0f000,
176
    [COLOR_WHITE]       = 0xf0f0f0,
177
 
178
    [8 + COLOR_BLACK]   = 0x000000,
179
    [8 + COLOR_BLUE]    = 0x0000ff,
180
    [8 + COLOR_GREEN]   = 0x00ff00,
181
    [8 + COLOR_CYAN]    = 0x00ffff,
182
    [8 + COLOR_RED]     = 0xff0000,
183
    [8 + COLOR_MAGENTA] = 0xff00ff,
184
    [8 + COLOR_YELLOW]  = 0xffff00,
185
    [8 + COLOR_WHITE]   = 0xffffff,
186
};
187
 
3792 svoboda 188
static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a);
3767 svoboda 189
static int rgb_from_style(attr_rgb_t *rgb, int style);
190
static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
191
    ipcarg_t bg_color, ipcarg_t flags);
192
 
193
static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
194
    ipcarg_t bg_color, ipcarg_t attr);
195
 
3744 svoboda 196
static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
197
    uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color);
198
static void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
199
    uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color);
200
 
3739 svoboda 201
static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
3723 svoboda 202
    unsigned int row);
203
 
204
 
3707 decky 205
#define RED(x, bits)                 ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))
206
#define GREEN(x, bits)               ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
207
#define BLUE(x, bits)                ((x >> (8 - bits)) & ((1 << bits) - 1))
1363 vana 208
 
3707 decky 209
#define COL2X(col)                   ((col) * FONT_WIDTH)
210
#define ROW2Y(row)                   ((row) * FONT_SCANLINES)
1363 vana 211
 
3707 decky 212
#define X2COL(x)                     ((x) / FONT_WIDTH)
213
#define Y2ROW(y)                     ((y) / FONT_SCANLINES)
1363 vana 214
 
3707 decky 215
#define FB_POS(x, y)                 ((y) * screen.scanline + (x) * screen.pixelbytes)
216
#define BB_POS(vport, col, row)      ((row) * vport->cols + (col))
217
#define GLYPH_POS(glyph, y, cursor)  (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
1875 jermar 218
 
1363 vana 219
 
3707 decky 220
/** ARGB 8:8:8:8 conversion
221
 *
222
 */
223
static void rgb_0888(void *dst, uint32_t rgb)
1363 vana 224
{
3707 decky 225
    *((uint32_t *) dst) = rgb & 0xffffff;
1363 vana 226
}
227
 
1994 decky 228
 
3707 decky 229
/** ABGR 8:8:8:8 conversion
230
 *
231
 */
232
static void bgr_0888(void *dst, uint32_t rgb)
1994 decky 233
{
3707 decky 234
    *((uint32_t *) dst)
235
        = (BLUE(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | RED(rgb, 8);
1994 decky 236
}
237
 
3707 decky 238
 
3882 decky 239
/** RGB 8:8:8 conversion
3707 decky 240
 *
241
 */
242
static void rgb_888(void *dst, uint32_t rgb)
1363 vana 243
{
3710 decky 244
    ((uint8_t *) dst)[0] = BLUE(rgb, 8);
245
    ((uint8_t *) dst)[1] = GREEN(rgb, 8);
246
    ((uint8_t *) dst)[2] = RED(rgb, 8);
1363 vana 247
}
248
 
249
 
3882 decky 250
/** BGR 8:8:8 conversion
251
 *
252
 */
253
static void bgr_888(void *dst, uint32_t rgb)
254
{
255
    ((uint8_t *) dst)[0] = RED(rgb, 8);
256
    ((uint8_t *) dst)[1] = GREEN(rgb, 8);
257
    ((uint8_t *) dst)[2] = BLUE(rgb, 8);
258
}
259
 
260
 
3707 decky 261
/** RGB 5:5:5 conversion
262
 *
263
 */
264
static void rgb_555(void *dst, uint32_t rgb)
1993 decky 265
{
3707 decky 266
    *((uint16_t *) dst)
267
        = (RED(rgb, 5) << 10) | (GREEN(rgb, 5) << 5) | BLUE(rgb, 5);
1993 decky 268
}
269
 
270
 
3707 decky 271
/** RGB 5:6:5 conversion
272
 *
273
 */
274
static void rgb_565(void *dst, uint32_t rgb)
1363 vana 275
{
3707 decky 276
    *((uint16_t *) dst)
277
        = (RED(rgb, 5) << 11) | (GREEN(rgb, 6) << 5) | BLUE(rgb, 5);
1363 vana 278
}
279
 
280
 
3707 decky 281
/** RGB 3:2:3
282
 *
283
 */
284
static void rgb_323(void *dst, uint32_t rgb)
1363 vana 285
{
3707 decky 286
    *((uint8_t *) dst)
287
        = ~((RED(rgb, 3) << 5) | (GREEN(rgb, 2) << 3) | BLUE(rgb, 3));
1363 vana 288
}
289
 
3725 svoboda 290
/** Draw a filled rectangle.
291
 *
292
 * @note Need real implementation that does not access VRAM twice.
293
 */
3723 svoboda 294
static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
295
    unsigned int y1, uint32_t color)
296
{
297
    unsigned int x, y;
3725 svoboda 298
    unsigned int copy_bytes;
299
 
300
    uint8_t *sp, *dp;
3723 svoboda 301
    uint8_t cbuf[4];
1363 vana 302
 
3725 svoboda 303
    if (y0 >= y1 || x0 >= x1) return;
3723 svoboda 304
    screen.rgb_conv(cbuf, color);
305
 
3725 svoboda 306
    sp = &screen.fb_addr[FB_POS(x0, y0)];
307
    dp = sp;
308
 
309
    /* Draw the first line. */
310
    for (x = x0; x < x1; x++) {
311
        memcpy(dp, cbuf, screen.pixelbytes);
312
        dp += screen.pixelbytes;
3723 svoboda 313
    }
3725 svoboda 314
 
315
    dp = sp + screen.scanline;
316
    copy_bytes = (x1 - x0) * screen.pixelbytes;
317
 
318
    /* Draw the remaining lines by copying. */
319
    for (y = y0 + 1; y < y1; y++) {
320
        memcpy(dp, sp, copy_bytes);
321
        dp += screen.scanline;
322
    }
3723 svoboda 323
}
324
 
325
/** Redraw viewport.
1498 palkovsky 326
 *
3707 decky 327
 * @param vport Viewport to redraw
328
 *
1498 palkovsky 329
 */
3707 decky 330
static void vport_redraw(viewport_t *vport)
1485 palkovsky 331
{
3723 svoboda 332
    unsigned int row, col;
333
 
3707 decky 334
    for (row = 0; row < vport->rows; row++) {
3723 svoboda 335
        for (col = 0; col < vport->cols; col++) {
3739 svoboda 336
            draw_vp_glyph(vport, false, col, row);
3707 decky 337
        }
1672 palkovsky 338
    }
3723 svoboda 339
 
3707 decky 340
    if (COL2X(vport->cols) < vport->width) {
3723 svoboda 341
        draw_filled_rect(
342
            vport->x + COL2X(vport->cols), vport->y,
343
            vport->x + vport->width, vport->y + vport->height,
3767 svoboda 344
            vport->attr.bg_color);
1672 palkovsky 345
    }
3723 svoboda 346
 
3707 decky 347
    if (ROW2Y(vport->rows) < vport->height) {
3723 svoboda 348
        draw_filled_rect(
349
            vport->x, vport->y + ROW2Y(vport->rows),
350
            vport->x + vport->width, vport->y + vport->height,
3767 svoboda 351
            vport->attr.bg_color);
1672 palkovsky 352
    }
1559 palkovsky 353
}
354
 
3767 svoboda 355
static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
356
    uint32_t bg_color)
357
{
358
    unsigned i;
3707 decky 359
 
3767 svoboda 360
    for (i = 0; i < len; i++) {
361
        backbuf[i].glyph = 0;
362
        backbuf[i].fg_color = fg_color;
363
        backbuf[i].bg_color = bg_color;
364
    }
365
}
366
 
3724 svoboda 367
/** Clear viewport.
3707 decky 368
 *
369
 * @param vport Viewport to clear
370
 *
371
 */
372
static void vport_clear(viewport_t *vport)
1363 vana 373
{
3767 svoboda 374
    backbuf_clear(vport->backbuf, vport->cols * vport->rows,
375
        vport->attr.fg_color, vport->attr.bg_color);
3707 decky 376
    vport_redraw(vport);
1363 vana 377
}
378
 
3724 svoboda 379
/** Scroll viewport by the specified number of lines.
1485 palkovsky 380
 *
1709 jermar 381
 * @param vport Viewport to scroll
3707 decky 382
 * @param lines Number of lines to scroll
383
 *
1485 palkovsky 384
 */
3707 decky 385
static void vport_scroll(viewport_t *vport, int lines)
1363 vana 386
{
3726 svoboda 387
    unsigned int row, col;
3739 svoboda 388
    unsigned int x, y;
389
    uint8_t glyph;
3767 svoboda 390
    uint32_t fg_color;
391
    uint32_t bg_color;
392
    bb_cell_t *bbp, *xbp;
3726 svoboda 393
 
3724 svoboda 394
    /*
3739 svoboda 395
     * Redraw.
396
     */
397
 
398
    y = vport->y;
399
    for (row = 0; row < vport->rows; row++) {
400
        x = vport->x;
401
        for (col = 0; col < vport->cols; col++) {
402
            if ((row + lines >= 0) && (row + lines < vport->rows)) {
3767 svoboda 403
                xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
404
                bbp = &vport->backbuf[BB_POS(vport, col, row)];
3739 svoboda 405
 
3767 svoboda 406
                glyph = xbp->glyph;
407
                fg_color = xbp->fg_color;
408
                bg_color = xbp->bg_color;
409
 
410
                if (bbp->glyph == glyph &&
411
                    bbp->fg_color == xbp->fg_color &&
412
                    bbp->bg_color == xbp->bg_color) {
3739 svoboda 413
                    x += FONT_WIDTH;
414
                    continue;
415
                }
416
            } else {
417
                glyph = 0;
3767 svoboda 418
                fg_color = vport->attr.fg_color;
419
                bg_color = vport->attr.bg_color;
3739 svoboda 420
            }
421
 
3744 svoboda 422
            (*vport->dglyph)(x, y, false, vport->glyphs, glyph,
3767 svoboda 423
                fg_color, bg_color);
3739 svoboda 424
            x += FONT_WIDTH;
425
        }
426
        y += FONT_SCANLINES;
427
    }
428
 
429
    /*
3724 svoboda 430
     * Scroll backbuffer.
431
     */
3723 svoboda 432
 
1672 palkovsky 433
    if (lines > 0) {
3739 svoboda 434
        memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
3767 svoboda 435
            vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
436
        backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
437
            vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
3707 decky 438
    } else {
3739 svoboda 439
        memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
3767 svoboda 440
            vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
441
        backbuf_clear(vport->backbuf, - vport->cols * lines,
442
            vport->attr.fg_color, vport->attr.bg_color);
1672 palkovsky 443
    }
444
}
445
 
3707 decky 446
/** Render glyphs
1558 palkovsky 447
 *
3707 decky 448
 * Convert glyphs from device independent font
449
 * description to current visual representation.
450
 *
451
 * @param vport Viewport
452
 *
1558 palkovsky 453
 */
3707 decky 454
static void render_glyphs(viewport_t* vport)
1363 vana 455
{
3707 decky 456
    unsigned int glyph;
457
 
458
    for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
459
        unsigned int y;
460
 
461
        for (y = 0; y < FONT_SCANLINES; y++) {
462
            unsigned int x;
463
 
464
            for (x = 0; x < FONT_WIDTH; x++) {
465
                screen.rgb_conv(&vport->glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
466
                    (fb_font[glyph * FONT_SCANLINES + y] & (1 << (7 - x)))
3744 svoboda 467
                    ? 0xffffff : 0x000000);
3707 decky 468
 
3744 svoboda 469
                screen.rgb_conv(&vport->glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
470
                    (fb_font[glyph * FONT_SCANLINES + y] & (1 << (7 - x)))
471
                    ? 0x000000 : 0xffffff);
3707 decky 472
            }
1509 palkovsky 473
        }
474
    }
3707 decky 475
 
3767 svoboda 476
    screen.rgb_conv(vport->bgpixel, vport->attr.bg_color);
1363 vana 477
}
478
 
479
 
1485 palkovsky 480
/** Create new viewport
1363 vana 481
 *
3707 decky 482
 * @param x      Origin of the viewport (x).
483
 * @param y      Origin of the viewport (y).
484
 * @param width  Width of the viewport.
485
 * @param height Height of the viewport.
486
 *
487
 * @return New viewport number.
488
 *
1363 vana 489
 */
3707 decky 490
static int vport_create(unsigned int x, unsigned int y,
491
    unsigned int width, unsigned int height)
1363 vana 492
{
3707 decky 493
    unsigned int i;
494
 
2070 jermar 495
    for (i = 0; i < MAX_VIEWPORTS; i++) {
1485 palkovsky 496
        if (!viewports[i].initialized)
1363 vana 497
            break;
498
    }
1485 palkovsky 499
    if (i == MAX_VIEWPORTS)
500
        return ELIMIT;
3707 decky 501
 
502
    unsigned int cols = width / FONT_WIDTH;
503
    unsigned int rows = height / FONT_SCANLINES;
3767 svoboda 504
    unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
3707 decky 505
    unsigned int glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
3744 svoboda 506
    unsigned int word_size = sizeof(unsigned long);
3707 decky 507
 
3767 svoboda 508
    bb_cell_t *backbuf = (bb_cell_t *) malloc(bbsize);
3707 decky 509
    if (!backbuf)
510
        return ENOMEM;
511
 
512
    uint8_t *glyphs = (uint8_t *) malloc(glyphsize);
513
    if (!glyphs) {
514
        free(backbuf);
515
        return ENOMEM;
516
    }
517
 
518
    uint8_t *bgpixel = (uint8_t *) malloc(screen.pixelbytes);
519
    if (!bgpixel) {
520
        free(glyphs);
521
        free(backbuf);
522
        return ENOMEM;
523
    }
3767 svoboda 524
 
525
    backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
3707 decky 526
    memset(glyphs, 0, glyphsize);
527
    memset(bgpixel, 0, screen.pixelbytes);
528
 
1485 palkovsky 529
    viewports[i].x = x;
530
    viewports[i].y = y;
531
    viewports[i].width = width;
532
    viewports[i].height = height;
1363 vana 533
 
3707 decky 534
    viewports[i].cols = cols;
535
    viewports[i].rows = rows;
536
 
3767 svoboda 537
    viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
538
    viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
1363 vana 539
 
3707 decky 540
    viewports[i].glyphs = glyphs;
541
    viewports[i].bgpixel = bgpixel;
3744 svoboda 542
 
543
    /*
544
     * Conditions necessary  to select aligned version:
545
     *
546
     *   - word size is divisible by pixelbytes
547
     *   - cell scanline size is divisible by word size
548
     *   - cell scanlines are word-aligned
549
     */
550
    if ((word_size % screen.pixelbytes) == 0 &&
551
        (FONT_WIDTH * screen.pixelbytes) % word_size == 0 &&
552
        (x * screen.pixelbytes) % word_size == 0 &&
553
        screen.scanline % word_size == 0) {
554
 
555
        viewports[i].dglyph = draw_glyph_aligned;
556
    } else {
557
        viewports[i].dglyph = draw_glyph_fallback;
558
    }
559
 
1489 palkovsky 560
    viewports[i].cur_col = 0;
561
    viewports[i].cur_row = 0;
3707 decky 562
    viewports[i].cursor_active = false;
563
    viewports[i].cursor_shown = false;
564
 
565
    viewports[i].bbsize = bbsize;
566
    viewports[i].backbuf = backbuf;
567
 
568
    viewports[i].initialized = true;
569
 
570
    render_glyphs(&viewports[i]);
571
 
1485 palkovsky 572
    return i;
1363 vana 573
}
574
 
3707 decky 575
 
1363 vana 576
/** Initialize framebuffer as a chardev output device
577
 *
3707 decky 578
 * @param addr   Address of the framebuffer
579
 * @param xres   Screen width in pixels
580
 * @param yres   Screen height in pixels
581
 * @param visual Bits per pixel (8, 16, 24, 32)
582
 * @param scan   Bytes per one scanline
1363 vana 583
 *
584
 */
3707 decky 585
static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
586
    unsigned int scan, unsigned int visual)
1363 vana 587
{
1993 decky 588
    switch (visual) {
589
    case VISUAL_INDIRECT_8:
3707 decky 590
        screen.rgb_conv = rgb_323;
1886 jermar 591
        screen.pixelbytes = 1;
592
        break;
1993 decky 593
    case VISUAL_RGB_5_5_5:
3707 decky 594
        screen.rgb_conv = rgb_555;
1886 jermar 595
        screen.pixelbytes = 2;
596
        break;
1993 decky 597
    case VISUAL_RGB_5_6_5:
3707 decky 598
        screen.rgb_conv = rgb_565;
1993 decky 599
        screen.pixelbytes = 2;
1886 jermar 600
        break;
1993 decky 601
    case VISUAL_RGB_8_8_8:
3707 decky 602
        screen.rgb_conv = rgb_888;
1993 decky 603
        screen.pixelbytes = 3;
604
        break;
3882 decky 605
    case VISUAL_BGR_8_8_8:
606
        screen.rgb_conv = bgr_888;
607
        screen.pixelbytes = 3;
608
        break;
1993 decky 609
    case VISUAL_RGB_8_8_8_0:
3707 decky 610
        screen.rgb_conv = rgb_888;
1886 jermar 611
        screen.pixelbytes = 4;
612
        break;
1993 decky 613
    case VISUAL_RGB_0_8_8_8:
3707 decky 614
        screen.rgb_conv = rgb_0888;
1993 decky 615
        screen.pixelbytes = 4;
616
        break;
1994 decky 617
    case VISUAL_BGR_0_8_8_8:
3707 decky 618
        screen.rgb_conv = bgr_0888;
1994 decky 619
        screen.pixelbytes = 4;
620
        break;
1993 decky 621
    default:
622
        return false;
1363 vana 623
    }
624
 
3707 decky 625
    screen.fb_addr = (unsigned char *) addr;
1485 palkovsky 626
    screen.xres = xres;
627
    screen.yres = yres;
628
    screen.scanline = scan;
1363 vana 629
 
3707 decky 630
    screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
631
    screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
632
 
1485 palkovsky 633
    /* Create first viewport */
3707 decky 634
    vport_create(0, 0, xres, yres);
1993 decky 635
 
636
    return true;
1485 palkovsky 637
}
1363 vana 638
 
3707 decky 639
 
3744 svoboda 640
/** Draw a glyph, takes advantage of alignment.
3707 decky 641
 *
3744 svoboda 642
 * This version can only be used if the following conditions are met:
3739 svoboda 643
 *
3744 svoboda 644
 *   - word size is divisible by pixelbytes
645
 *   - cell scanline size is divisible by word size
646
 *   - cell scanlines are word-aligned
647
 *
648
 * It makes use of the pre-rendered mask to process (possibly) several
649
 * pixels at once (word size / pixelbytes pixels at a time are processed)
650
 * making it very fast. Most notably this version is not applicable at 24 bits
651
 * per pixel.
652
 *
653
 * @param x     x coordinate of top-left corner on screen.
654
 * @param y     y coordinate of top-left corner on screen.
655
 * @param cursor    Draw glyph with cursor
656
 * @param glyphs    Pointer to font bitmap.
657
 * @param glyph     Code of the glyph to draw.
658
 * @param fg_color  Foreground color.
659
 * @param bg_color  Backgroudn color.
3739 svoboda 660
 */
3744 svoboda 661
static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
662
    uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color)
3739 svoboda 663
{
3744 svoboda 664
    unsigned int i, yd;
665
    unsigned long fg_buf, bg_buf;
666
    unsigned long *maskp, *dp;
667
    unsigned long mask;
668
    unsigned int ww, d_add;
669
 
670
    /*
671
     * Prepare a pair of words, one filled with foreground-color
672
     * pattern and the other filled with background-color pattern.
673
     */
674
    for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
675
        screen.rgb_conv(&((uint8_t *)&fg_buf)[i * screen.pixelbytes],
676
            fg_color);
677
        screen.rgb_conv(&((uint8_t *)&bg_buf)[i * screen.pixelbytes],
678
            bg_color);
679
    }
680
 
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
    }
3739 svoboda 707
}
708
 
3744 svoboda 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,
723
    uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color)
724
{
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. */
748
        b = fb_font[glyph * FONT_SCANLINES + yd];
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
 
3739 svoboda 768
/** Draw glyph at specified position in viewport.
769
 *
3707 decky 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
 */
3739 svoboda 776
static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
777
    unsigned int row)
1500 palkovsky 778
{
3707 decky 779
    unsigned int x = vport->x + COL2X(col);
780
    unsigned int y = vport->y + ROW2Y(row);
3767 svoboda 781
 
3739 svoboda 782
    uint8_t glyph;
3767 svoboda 783
    uint32_t fg_color;
784
    uint32_t bg_color;
3707 decky 785
 
3767 svoboda 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;
3744 svoboda 789
 
790
    (*vport->dglyph)(x, y, cursor, vport->glyphs, glyph,
3767 svoboda 791
        fg_color, bg_color);
3707 decky 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)) {
3739 svoboda 800
        draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
3707 decky 801
        vport->cursor_shown = false;
1500 palkovsky 802
    }
803
}
804
 
3707 decky 805
 
806
/** Show cursor if cursor showing is enabled
807
 *
808
 */
809
static void cursor_show(viewport_t *vport)
1500 palkovsky 810
{
811
    /* Do not check for cursor_shown */
812
    if (vport->cursor_active) {
3739 svoboda 813
        draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
3707 decky 814
        vport->cursor_shown = true;
1500 palkovsky 815
    }
816
}
817
 
3707 decky 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
3707 decky 827
        cursor_show(vport);
1500 palkovsky 828
}
829
 
3707 decky 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
 */
3707 decky 839
static void draw_char(viewport_t *vport, uint8_t c, unsigned int col, unsigned int row)
1486 palkovsky 840
{
3767 svoboda 841
    bb_cell_t *bbp;
842
 
3707 decky 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);
3767 svoboda 847
 
848
    bbp = &vport->backbuf[BB_POS(vport, col, row)];
849
    bbp->glyph = c;
850
    bbp->fg_color = vport->attr.fg_color;
851
    bbp->bg_color = vport->attr.bg_color;
852
 
3739 svoboda 853
    draw_vp_glyph(vport, false, col, row);
3707 decky 854
 
1489 palkovsky 855
    vport->cur_col = col;
856
    vport->cur_row = row;
3707 decky 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
    }
3707 decky 865
 
866
    cursor_show(vport);
1486 palkovsky 867
}
868
 
3707 decky 869
 
1552 palkovsky 870
/** Draw text data to viewport
871
 *
1709 jermar 872
 * @param vport Viewport id
3707 decky 873
 * @param data  Text data fitting exactly into viewport
874
 *
1552 palkovsky 875
 */
3707 decky 876
static void draw_text_data(viewport_t *vport, keyfield_t *data)
1505 palkovsky 877
{
3707 decky 878
    unsigned int i;
3767 svoboda 879
    bb_cell_t *bbp;
880
    attrs_t *a;
881
    attr_rgb_t rgb;
3707 decky 882
 
2025 jermar 883
    for (i = 0; i < vport->cols * vport->rows; i++) {
3707 decky 884
        unsigned int col = i % vport->cols;
885
        unsigned int row = i / vport->cols;
886
 
3767 svoboda 887
        bbp = &vport->backbuf[BB_POS(vport, col, row)];
888
        uint8_t glyph = bbp->glyph;
889
 
3792 svoboda 890
        a = &data[i].attrs;
891
        rgb_from_attr(&rgb, a);
3767 svoboda 892
 
3795 svoboda 893
        bbp->glyph = data[i].character;
894
        bbp->fg_color = rgb.fg_color;
895
        bbp->bg_color = rgb.bg_color;
3767 svoboda 896
 
3795 svoboda 897
        draw_vp_glyph(vport, false, col, row);
1505 palkovsky 898
    }
3707 decky 899
    cursor_show(vport);
1505 palkovsky 900
}
901
 
3707 decky 902
 
903
static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
1555 palkovsky 904
{
3707 decky 905
    int pm = *((int *) data);
906
    pixmap_t *pmap = &pixmaps[pm];
907
    unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
1555 palkovsky 908
 
3707 decky 909
    screen.rgb_conv(&pmap->data[pos], color);
910
}
911
 
912
 
913
static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
914
{
915
    viewport_t *vport = (viewport_t *) data;
916
    unsigned int dx = vport->x + x;
917
    unsigned int dy = vport->y + y;
918
 
919
    screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
920
}
921
 
922
 
923
/** Return first free pixmap
924
 *
925
 */
926
static int find_free_pixmap(void)
927
{
928
    unsigned int i;
929
 
930
    for (i = 0; i < MAX_PIXMAPS; i++)
1555 palkovsky 931
        if (!pixmaps[i].data)
932
            return i;
3707 decky 933
 
1555 palkovsky 934
    return -1;
935
}
936
 
937
 
3707 decky 938
/** Create a new pixmap and return appropriate ID
939
 *
940
 */
941
static int shm2pixmap(unsigned char *shm, size_t size)
1555 palkovsky 942
{
943
    int pm;
944
    pixmap_t *pmap;
3707 decky 945
 
1555 palkovsky 946
    pm = find_free_pixmap();
947
    if (pm == -1)
948
        return ELIMIT;
3707 decky 949
 
1555 palkovsky 950
    pmap = &pixmaps[pm];
951
 
952
    if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
953
        return EINVAL;
954
 
955
    pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
956
    if (!pmap->data)
957
        return ENOMEM;
3707 decky 958
 
959
    ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
960
 
1555 palkovsky 961
    return pm;
962
}
963
 
3707 decky 964
 
1552 palkovsky 965
/** Handle shared memory communication calls
966
 *
967
 * Protocol for drawing pixmaps:
968
 * - FB_PREPARE_SHM(client shm identification)
2025 jermar 969
 * - IPC_M_AS_AREA_SEND
3707 decky 970
 * - FB_DRAW_PPM(startx, starty)
1552 palkovsky 971
 * - FB_DROP_SHM
972
 *
973
 * Protocol for text drawing
2025 jermar 974
 * - IPC_M_AS_AREA_SEND
1552 palkovsky 975
 * - FB_DRAW_TEXT_DATA
976
 *
977
 * @param callid Callid of the current call
3707 decky 978
 * @param call   Current call data
979
 * @param vp     Active viewport
1552 palkovsky 980
 *
3707 decky 981
 * @return false if the call was not handled byt this function, true otherwise
982
 *
983
 * Note: this function is not threads safe, you would have
1552 palkovsky 984
 * to redefine static variables with __thread
3707 decky 985
 *
1552 palkovsky 986
 */
3707 decky 987
static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1547 palkovsky 988
{
989
    static keyfield_t *interbuffer = NULL;
990
    static size_t intersize = 0;
3707 decky 991
 
1720 palkovsky 992
    static unsigned char *shm = NULL;
1555 palkovsky 993
    static ipcarg_t shm_id = 0;
994
    static size_t shm_size;
3707 decky 995
 
996
    bool handled = true;
997
    int retval = EOK;
1547 palkovsky 998
    viewport_t *vport = &viewports[vp];
3707 decky 999
    unsigned int x;
1000
    unsigned int y;
1001
 
1547 palkovsky 1002
    switch (IPC_GET_METHOD(*call)) {
2677 jermar 1003
    case IPC_M_SHARE_OUT:
1547 palkovsky 1004
        /* We accept one area for data interchange */
1555 palkovsky 1005
        if (IPC_GET_ARG1(*call) == shm_id) {
2141 jermar 1006
            void *dest = as_get_mappable_page(IPC_GET_ARG2(*call));
1555 palkovsky 1007
            shm_size = IPC_GET_ARG2(*call);
3707 decky 1008
            if (!ipc_answer_1(callid, EOK, (sysarg_t) dest))
1555 palkovsky 1009
                shm = dest;
1547 palkovsky 1010
            else
1555 palkovsky 1011
                shm_id = 0;
3707 decky 1012
 
1555 palkovsky 1013
            if (shm[0] != 'P')
3707 decky 1014
                return false;
1015
 
1016
            return true;
1547 palkovsky 1017
        } else {
1018
            intersize = IPC_GET_ARG2(*call);
2015 jermar 1019
            receive_comm_area(callid, call, (void *) &interbuffer);
1547 palkovsky 1020
        }
3707 decky 1021
        return true;
1547 palkovsky 1022
    case FB_PREPARE_SHM:
1555 palkovsky 1023
        if (shm_id)
1547 palkovsky 1024
            retval = EBUSY;
1025
        else
1555 palkovsky 1026
            shm_id = IPC_GET_ARG1(*call);
1547 palkovsky 1027
        break;
1028
 
1029
    case FB_DROP_SHM:
1555 palkovsky 1030
        if (shm) {
1031
            as_area_destroy(shm);
1032
            shm = NULL;
1547 palkovsky 1033
        }
1555 palkovsky 1034
        shm_id = 0;
1547 palkovsky 1035
        break;
3707 decky 1036
 
1555 palkovsky 1037
    case FB_SHM2PIXMAP:
1038
        if (!shm) {
1039
            retval = EINVAL;
1040
            break;
1041
        }
1042
        retval = shm2pixmap(shm, shm_size);
1043
        break;
1547 palkovsky 1044
    case FB_DRAW_PPM:
1555 palkovsky 1045
        if (!shm) {
1547 palkovsky 1046
            retval = EINVAL;
1047
            break;
1048
        }
1049
        x = IPC_GET_ARG1(*call);
1050
        y = IPC_GET_ARG2(*call);
3707 decky 1051
 
1052
        if ((x > vport->width) || (y > vport->height)) {
1547 palkovsky 1053
            retval = EINVAL;
1054
            break;
1055
        }
1056
 
2025 jermar 1057
        ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
3707 decky 1058
            IPC_GET_ARG2(*call), vport->width - x, vport->height - y, putpixel, (void *) vport);
1547 palkovsky 1059
        break;
1060
    case FB_DRAW_TEXT_DATA:
1061
        if (!interbuffer) {
1062
            retval = EINVAL;
1063
            break;
1064
        }
3707 decky 1065
        if (intersize < vport->cols * vport->rows * sizeof(*interbuffer)) {
1547 palkovsky 1066
            retval = EINVAL;
1067
            break;
1068
        }
1673 palkovsky 1069
        draw_text_data(vport, interbuffer);
1547 palkovsky 1070
        break;
1071
    default:
3707 decky 1072
        handled = false;
1547 palkovsky 1073
    }
1074
 
1075
    if (handled)
2619 jermar 1076
        ipc_answer_0(callid, retval);
1547 palkovsky 1077
    return handled;
1078
}
1079
 
3707 decky 1080
 
1081
static void copy_vp_to_pixmap(viewport_t *vport, pixmap_t *pmap)
1552 palkovsky 1082
{
3707 decky 1083
    unsigned int width = vport->width;
1084
    unsigned int height = vport->height;
1085
 
1711 palkovsky 1086
    if (width + vport->x > screen.xres)
1087
        width = screen.xres - vport->x;
2301 decky 1088
    if (height + vport->y > screen.yres)
1711 palkovsky 1089
        height = screen.yres - vport->y;
2301 decky 1090
 
3707 decky 1091
    unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1092
    unsigned int realheight = pmap->height <= height ? pmap->height : height;
2301 decky 1093
 
3707 decky 1094
    unsigned int srcrowsize = vport->width * screen.pixelbytes;
1095
    unsigned int realrowsize = realwidth * screen.pixelbytes;
1096
 
1097
    unsigned int y;
2301 decky 1098
    for (y = 0; y < realheight; y++) {
3707 decky 1099
        unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1100
        memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1711 palkovsky 1101
    }
1102
}
1103
 
3707 decky 1104
 
1105
/** Save viewport to pixmap
1106
 *
1107
 */
1108
static int save_vp_to_pixmap(viewport_t *vport)
1711 palkovsky 1109
{
1110
    int pm;
1111
    pixmap_t *pmap;
3707 decky 1112
 
1552 palkovsky 1113
    pm = find_free_pixmap();
1114
    if (pm == -1)
1115
        return ELIMIT;
1116
 
1117
    pmap = &pixmaps[pm];
1118
    pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
1119
    if (!pmap->data)
1120
        return ENOMEM;
3707 decky 1121
 
1552 palkovsky 1122
    pmap->width = vport->width;
1123
    pmap->height = vport->height;
3707 decky 1124
 
1711 palkovsky 1125
    copy_vp_to_pixmap(vport, pmap);
1552 palkovsky 1126
 
1127
    return pm;
1128
}
1129
 
3707 decky 1130
 
1552 palkovsky 1131
/** Draw pixmap on screen
1132
 *
1133
 * @param vp Viewport to draw on
1134
 * @param pm Pixmap identifier
3707 decky 1135
 *
1552 palkovsky 1136
 */
1137
static int draw_pixmap(int vp, int pm)
1138
{
1139
    pixmap_t *pmap = &pixmaps[pm];
1140
    viewport_t *vport = &viewports[vp];
3707 decky 1141
 
1142
    unsigned int width = vport->width;
1143
    unsigned int height = vport->height;
1144
 
1711 palkovsky 1145
    if (width + vport->x > screen.xres)
1146
        width = screen.xres - vport->x;
1147
    if (height + vport->y > screen.yres)
1148
        height = screen.yres - vport->y;
3707 decky 1149
 
1552 palkovsky 1150
    if (!pmap->data)
1151
        return EINVAL;
3707 decky 1152
 
1153
    unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1154
    unsigned int realheight = pmap->height <= height ? pmap->height : height;
1155
 
1156
    unsigned int srcrowsize = vport->width * screen.pixelbytes;
1157
    unsigned int realrowsize = realwidth * screen.pixelbytes;
1158
 
1159
    unsigned int y;
2070 jermar 1160
    for (y = 0; y < realheight; y++) {
3707 decky 1161
        unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1162
        memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1552 palkovsky 1163
    }
3707 decky 1164
 
1165
    return EOK;
1552 palkovsky 1166
}
1167
 
3707 decky 1168
 
1169
/** Tick animation one step forward
1170
 *
1171
 */
1172
static void anims_tick(void)
1646 palkovsky 1173
{
3707 decky 1174
    unsigned int i;
1646 palkovsky 1175
    static int counts = 0;
1176
 
1177
    /* Limit redrawing */
2025 jermar 1178
    counts = (counts + 1) % 8;
1646 palkovsky 1179
    if (counts)
1180
        return;
1181
 
2070 jermar 1182
    for (i = 0; i < MAX_ANIMATIONS; i++) {
3707 decky 1183
        if ((!animations[i].animlen) || (!animations[i].initialized) ||
1184
            (!animations[i].enabled))
1646 palkovsky 1185
            continue;
3707 decky 1186
 
1187
        draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
1188
        animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1646 palkovsky 1189
    }
1190
}
1191
 
1711 palkovsky 1192
 
3707 decky 1193
static unsigned int pointer_x;
1194
static unsigned int pointer_y;
1195
static bool pointer_shown, pointer_enabled;
1711 palkovsky 1196
static int pointer_vport = -1;
1197
static int pointer_pixmap = -1;
1198
 
3707 decky 1199
 
1200
static void mouse_show(void)
1711 palkovsky 1201
{
2070 jermar 1202
    int i, j;
1711 palkovsky 1203
    int visibility;
1204
    int color;
1205
    int bytepos;
3707 decky 1206
 
1207
    if ((pointer_shown) || (!pointer_enabled))
1723 palkovsky 1208
        return;
3707 decky 1209
 
3723 svoboda 1210
    /* Save image under the pointer. */
1711 palkovsky 1211
    if (pointer_vport == -1) {
3707 decky 1212
        pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1711 palkovsky 1213
        if (pointer_vport < 0)
1214
            return;
1215
    } else {
1216
        viewports[pointer_vport].x = pointer_x;
1217
        viewports[pointer_vport].y = pointer_y;
1218
    }
3707 decky 1219
 
1711 palkovsky 1220
    if (pointer_pixmap == -1)
1221
        pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
1222
    else
3707 decky 1223
        copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
1224
 
3723 svoboda 1225
    /* Draw mouse pointer. */
2025 jermar 1226
    for (i = 0; i < pointer_height; i++)
1227
        for (j = 0; j < pointer_width; j++) {
1228
            bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
2070 jermar 1229
            visibility = pointer_mask_bits[bytepos] &
2619 jermar 1230
                (1 << (j % 8));
1711 palkovsky 1231
            if (visibility) {
2619 jermar 1232
                color = pointer_bits[bytepos] &
1233
                    (1 << (j % 8)) ? 0 : 0xffffff;
2025 jermar 1234
                if (pointer_x + j < screen.xres && pointer_y +
2619 jermar 1235
                    i < screen.yres)
2025 jermar 1236
                    putpixel(&viewports[0], pointer_x + j,
2619 jermar 1237
                        pointer_y + i, color);
1711 palkovsky 1238
            }
1239
        }
1240
    pointer_shown = 1;
1241
}
1242
 
3707 decky 1243
 
1244
static void mouse_hide(void)
1711 palkovsky 1245
{
3723 svoboda 1246
    /* Restore image under the pointer. */
1711 palkovsky 1247
    if (pointer_shown) {
1248
        draw_pixmap(pointer_vport, pointer_pixmap);
1249
        pointer_shown = 0;
1250
    }
1251
}
1252
 
3707 decky 1253
 
1254
static void mouse_move(unsigned int x, unsigned int y)
1711 palkovsky 1255
{
1256
    mouse_hide();
1257
    pointer_x = x;
1258
    pointer_y = y;
1259
    mouse_show();
1260
}
1261
 
3707 decky 1262
 
1263
static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1646 palkovsky 1264
{
3707 decky 1265
    bool handled = true;
1266
    int retval = EOK;
1267
    int i, nvp;
1646 palkovsky 1268
    int newval;
3707 decky 1269
 
1646 palkovsky 1270
    switch (IPC_GET_METHOD(*call)) {
1271
    case FB_ANIM_CREATE:
1272
        nvp = IPC_GET_ARG1(*call);
1273
        if (nvp == -1)
1274
            nvp = vp;
2025 jermar 1275
        if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1276
            !viewports[nvp].initialized) {
1646 palkovsky 1277
            retval = EINVAL;
1278
            break;
1279
        }
2025 jermar 1280
        for (i = 0; i < MAX_ANIMATIONS; i++) {
1281
            if (!animations[i].initialized)
1646 palkovsky 1282
                break;
1283
        }
1284
        if (i == MAX_ANIMATIONS) {
1285
            retval = ELIMIT;
1286
            break;
1287
        }
1288
        animations[i].initialized = 1;
1289
        animations[i].animlen = 0;
1290
        animations[i].pos = 0;
1291
        animations[i].enabled = 0;
1292
        animations[i].vp = nvp;
1293
        retval = i;
1294
        break;
1295
    case FB_ANIM_DROP:
1296
        i = IPC_GET_ARG1(*call);
1720 palkovsky 1297
        if (i >= MAX_ANIMATIONS || i < 0) {
1646 palkovsky 1298
            retval = EINVAL;
1299
            break;
1300
        }
1301
        animations[i].initialized = 0;
1302
        break;
1303
    case FB_ANIM_ADDPIXMAP:
1304
        i = IPC_GET_ARG1(*call);
2025 jermar 1305
        if (i >= MAX_ANIMATIONS || i < 0 ||
1306
            !animations[i].initialized) {
1646 palkovsky 1307
            retval = EINVAL;
1308
            break;
1309
        }
1310
        if (animations[i].animlen == MAX_ANIM_LEN) {
1311
            retval = ELIMIT;
1312
            break;
1313
        }
1314
        newval = IPC_GET_ARG2(*call);
2025 jermar 1315
        if (newval < 0 || newval > MAX_PIXMAPS ||
1316
            !pixmaps[newval].data) {
1646 palkovsky 1317
            retval = EINVAL;
1318
            break;
1319
        }
1320
        animations[i].pixmaps[animations[i].animlen++] = newval;
1321
        break;
1322
    case FB_ANIM_CHGVP:
1323
        i = IPC_GET_ARG1(*call);
1324
        if (i >= MAX_ANIMATIONS || i < 0) {
1325
            retval = EINVAL;
1326
            break;
1327
        }
1328
        nvp = IPC_GET_ARG2(*call);
1329
        if (nvp == -1)
1330
            nvp = vp;
2025 jermar 1331
        if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1332
            !viewports[nvp].initialized) {
1646 palkovsky 1333
            retval = EINVAL;
1334
            break;
1335
        }
1336
        animations[i].vp = nvp;
1337
        break;
1338
    case FB_ANIM_START:
1339
    case FB_ANIM_STOP:
1340
        i = IPC_GET_ARG1(*call);
1341
        if (i >= MAX_ANIMATIONS || i < 0) {
1342
            retval = EINVAL;
1343
            break;
1344
        }
1345
        newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
1346
        if (newval ^ animations[i].enabled) {
1347
            animations[i].enabled = newval;
1348
            anims_enabled += newval ? 1 : -1;
1349
        }
1350
        break;
1351
    default:
1352
        handled = 0;
1353
    }
1354
    if (handled)
2619 jermar 1355
        ipc_answer_0(callid, retval);
1646 palkovsky 1356
    return handled;
1357
}
1358
 
3707 decky 1359
 
1360
/** Handler for messages concerning pixmap handling
1361
 *
1362
 */
1363
static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1552 palkovsky 1364
{
3707 decky 1365
    bool handled = true;
1366
    int retval = EOK;
1367
    int i, nvp;
1368
 
1552 palkovsky 1369
    switch (IPC_GET_METHOD(*call)) {
1370
    case FB_VP_DRAW_PIXMAP:
1371
        nvp = IPC_GET_ARG1(*call);
1372
        if (nvp == -1)
1373
            nvp = vp;
2025 jermar 1374
        if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1375
            !viewports[nvp].initialized) {
1552 palkovsky 1376
            retval = EINVAL;
1377
            break;
1378
        }
1379
        i = IPC_GET_ARG2(*call);
1380
        retval = draw_pixmap(nvp, i);
1381
        break;
1382
    case FB_VP2PIXMAP:
1383
        nvp = IPC_GET_ARG1(*call);
1384
        if (nvp == -1)
1385
            nvp = vp;
2025 jermar 1386
        if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1387
            !viewports[nvp].initialized)
1552 palkovsky 1388
            retval = EINVAL;
1389
        else
1711 palkovsky 1390
            retval = save_vp_to_pixmap(&viewports[nvp]);
1552 palkovsky 1391
        break;
1392
    case FB_DROP_PIXMAP:
1393
        i = IPC_GET_ARG1(*call);
1394
        if (i >= MAX_PIXMAPS) {
1395
            retval = EINVAL;
1396
            break;
1397
        }
1398
        if (pixmaps[i].data) {
1399
            free(pixmaps[i].data);
1400
            pixmaps[i].data = NULL;
1401
        }
1402
        break;
1403
    default:
1404
        handled = 0;
1405
    }
3707 decky 1406
 
1552 palkovsky 1407
    if (handled)
2619 jermar 1408
        ipc_answer_0(callid, retval);
1552 palkovsky 1409
    return handled;
1410
 
1411
}
1412
 
3767 svoboda 1413
static int rgb_from_style(attr_rgb_t *rgb, int style)
1414
{
1415
    switch (style) {
1416
    case STYLE_NORMAL:
1417
        rgb->fg_color = color_table[COLOR_BLACK];
1418
        rgb->bg_color = color_table[COLOR_WHITE];
1419
        break;
1420
    case STYLE_EMPHASIS:
1421
        rgb->fg_color = color_table[COLOR_RED];
1422
        rgb->bg_color = color_table[COLOR_WHITE];
1423
        break;
1424
    default:
1425
        return EINVAL;
1426
    }
1427
 
1428
    return EOK;
1429
}
1430
 
1431
static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
1432
    ipcarg_t bg_color, ipcarg_t flags)
1433
{
1434
    fg_color = (fg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1435
    bg_color = (bg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1436
 
1437
    rgb->fg_color = color_table[fg_color];
1438
    rgb->bg_color = color_table[bg_color];
1439
 
1440
    return EOK;
1441
}
1442
 
3792 svoboda 1443
static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a)
1444
{
1445
    int rc;
1446
 
1447
    switch (a->t) {
1448
    case at_style:
1449
        rc = rgb_from_style(rgb, a->a.s.style);
1450
        break;
1451
    case at_idx:
1452
        rc = rgb_from_idx(rgb, a->a.i.fg_color,
1453
            a->a.i.bg_color, a->a.i.flags);
1454
        break;
1455
    case at_rgb:
1456
        *rgb = a->a.r;
1457
        rc = EOK;
1458
        break;
1459
    }
1460
 
1461
    return rc;
1462
}
1463
 
3767 svoboda 1464
static int fb_set_style(viewport_t *vport, ipcarg_t style)
1465
{
1466
    return rgb_from_style(&vport->attr, (int) style);
1467
}
1468
 
1469
static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
1470
    ipcarg_t bg_color, ipcarg_t flags)
1471
{
1472
    return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
1473
}
1474
 
1498 palkovsky 1475
/** Function for handling connections to FB
1476
 *
1477
 */
3707 decky 1478
static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363 vana 1479
{
3707 decky 1480
    unsigned int vp = 0;
1481
    viewport_t *vport = &viewports[vp];
1482
 
1485 palkovsky 1483
    if (client_connected) {
2619 jermar 1484
        ipc_answer_0(iid, ELIMIT);
1485 palkovsky 1485
        return;
1486
    }
3707 decky 1487
 
1488
    /* Accept connection */
1489
    client_connected = true;
1490
    ipc_answer_0(iid, EOK);
1491
 
1492
    while (true) {
1493
        ipc_callid_t callid;
1494
        ipc_call_t call;
1495
        int retval;
1496
        unsigned int i;
1497
        int scroll;
1498
        uint8_t glyph;
1499
        unsigned int row, col;
1500
 
1501
        if ((vport->cursor_active) || (anims_enabled))
2070 jermar 1502
            callid = async_get_call_timeout(&call, 250000);
1640 palkovsky 1503
        else
1504
            callid = async_get_call(&call);
3707 decky 1505
 
1713 palkovsky 1506
        mouse_hide();
1500 palkovsky 1507
        if (!callid) {
1673 palkovsky 1508
            cursor_blink(vport);
1646 palkovsky 1509
            anims_tick();
1723 palkovsky 1510
            mouse_show();
1500 palkovsky 1511
            continue;
1512
        }
3707 decky 1513
 
1547 palkovsky 1514
        if (shm_handle(callid, &call, vp))
1515
            continue;
3707 decky 1516
 
1552 palkovsky 1517
        if (pixmap_handle(callid, &call, vp))
1518
            continue;
3707 decky 1519
 
1646 palkovsky 1520
        if (anim_handle(callid, &call, vp))
1521
            continue;
3707 decky 1522
 
1523
        switch (IPC_GET_METHOD(call)) {
1485 palkovsky 1524
        case IPC_M_PHONE_HUNGUP:
3707 decky 1525
            client_connected = false;
1526
 
1527
            /* Cleanup other viewports */
2025 jermar 1528
            for (i = 1; i < MAX_VIEWPORTS; i++)
3707 decky 1529
                vport->initialized = false;
1530
 
1531
            /* Exit thread */
1532
            return;
1533
 
1485 palkovsky 1534
        case FB_PUTCHAR:
3707 decky 1535
            glyph = IPC_GET_ARG1(call);
1485 palkovsky 1536
            row = IPC_GET_ARG2(call);
1537
            col = IPC_GET_ARG3(call);
3707 decky 1538
 
1539
            if ((col >= vport->cols) || (row >= vport->rows)) {
1485 palkovsky 1540
                retval = EINVAL;
1541
                break;
1542
            }
2619 jermar 1543
            ipc_answer_0(callid, EOK);
3707 decky 1544
 
1545
            draw_char(vport, glyph, col, row);
1546
 
1547
            /* Message already answered */
1548
            continue;
1485 palkovsky 1549
        case FB_CLEAR:
3707 decky 1550
            vport_clear(vport);
1551
            cursor_show(vport);
1552
            retval = EOK;
1485 palkovsky 1553
            break;
3707 decky 1554
        case FB_CURSOR_GOTO:
1486 palkovsky 1555
            row = IPC_GET_ARG1(call);
1556
            col = IPC_GET_ARG2(call);
3707 decky 1557
 
1558
            if ((col >= vport->cols) || (row >= vport->rows)) {
1486 palkovsky 1559
                retval = EINVAL;
1560
                break;
1561
            }
3707 decky 1562
            retval = EOK;
1563
 
1673 palkovsky 1564
            cursor_hide(vport);
1486 palkovsky 1565
            vport->cur_col = col;
1566
            vport->cur_row = row;
3707 decky 1567
            cursor_show(vport);
1568
            break;
1486 palkovsky 1569
        case FB_CURSOR_VISIBILITY:
1673 palkovsky 1570
            cursor_hide(vport);
1500 palkovsky 1571
            vport->cursor_active = IPC_GET_ARG1(call);
3707 decky 1572
            cursor_show(vport);
1573
            retval = EOK;
1486 palkovsky 1574
            break;
1485 palkovsky 1575
        case FB_GET_CSIZE:
2619 jermar 1576
            ipc_answer_2(callid, EOK, vport->rows, vport->cols);
1485 palkovsky 1577
            continue;
1486 palkovsky 1578
        case FB_SCROLL:
3707 decky 1579
            scroll = IPC_GET_ARG1(call);
1580
            if ((scroll > (int) vport->rows) || (scroll < (-(int) vport->rows))) {
1486 palkovsky 1581
                retval = EINVAL;
1582
                break;
1583
            }
1673 palkovsky 1584
            cursor_hide(vport);
3707 decky 1585
            vport_scroll(vport, scroll);
1586
            cursor_show(vport);
1587
            retval = EOK;
1486 palkovsky 1588
            break;
1589
        case FB_VIEWPORT_SWITCH:
1590
            i = IPC_GET_ARG1(call);
3707 decky 1591
            if (i >= MAX_VIEWPORTS) {
1486 palkovsky 1592
                retval = EINVAL;
1593
                break;
1594
            }
3707 decky 1595
            if (!viewports[i].initialized) {
1486 palkovsky 1596
                retval = EADDRNOTAVAIL;
1597
                break;
1598
            }
1673 palkovsky 1599
            cursor_hide(vport);
1486 palkovsky 1600
            vp = i;
1601
            vport = &viewports[vp];
3707 decky 1602
            cursor_show(vport);
1603
            retval = EOK;
1486 palkovsky 1604
            break;
1605
        case FB_VIEWPORT_CREATE:
3707 decky 1606
            retval = vport_create(IPC_GET_ARG1(call) >> 16,
2619 jermar 1607
                IPC_GET_ARG1(call) & 0xffff,
1608
                IPC_GET_ARG2(call) >> 16,
1609
                IPC_GET_ARG2(call) & 0xffff);
1486 palkovsky 1610
            break;
1611
        case FB_VIEWPORT_DELETE:
1612
            i = IPC_GET_ARG1(call);
3707 decky 1613
            if (i >= MAX_VIEWPORTS) {
1486 palkovsky 1614
                retval = EINVAL;
1615
                break;
1616
            }
3707 decky 1617
            if (!viewports[i].initialized) {
1486 palkovsky 1618
                retval = EADDRNOTAVAIL;
1619
                break;
1620
            }
3707 decky 1621
            viewports[i].initialized = false;
1622
            if (viewports[i].glyphs)
1623
                free(viewports[i].glyphs);
1624
            if (viewports[i].bgpixel)
1625
                free(viewports[i].bgpixel);
1626
            if (viewports[i].backbuf)
1627
                free(viewports[i].backbuf);
1628
            retval = EOK;
1486 palkovsky 1629
            break;
1630
        case FB_SET_STYLE:
3767 svoboda 1631
            retval = fb_set_style(vport, IPC_GET_ARG1(call));
1632
            break;
1633
        case FB_SET_COLOR:
1634
            retval = fb_set_color(vport, IPC_GET_ARG1(call),
1635
                IPC_GET_ARG2(call), IPC_GET_ARG3(call));
1636
            break;
1637
        case FB_SET_RGB_COLOR:
1638
            vport->attr.fg_color = IPC_GET_ARG1(call);
1639
            vport->attr.bg_color = IPC_GET_ARG2(call);
3707 decky 1640
            retval = EOK;
1486 palkovsky 1641
            break;
1642
        case FB_GET_RESOLUTION:
2619 jermar 1643
            ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1486 palkovsky 1644
            continue;
1707 palkovsky 1645
        case FB_POINTER_MOVE:
3707 decky 1646
            pointer_enabled = true;
1711 palkovsky 1647
            mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
3707 decky 1648
            retval = EOK;
1707 palkovsky 1649
            break;
1485 palkovsky 1650
        default:
1651
            retval = ENOENT;
1652
        }
2619 jermar 1653
        ipc_answer_0(callid, retval);
1363 vana 1654
    }
1485 palkovsky 1655
}
1363 vana 1656
 
3707 decky 1657
/** Initialization of framebuffer
1658
 *
1659
 */
1660
int fb_init(void)
1485 palkovsky 1661
{
1490 palkovsky 1662
    async_set_client_connection(fb_client_connection);
1485 palkovsky 1663
 
3707 decky 1664
    void *fb_ph_addr = (void *) sysinfo_value("fb.address.physical");
1665
    unsigned int fb_offset = sysinfo_value("fb.offset");
1666
    unsigned int fb_width = sysinfo_value("fb.width");
1667
    unsigned int fb_height = sysinfo_value("fb.height");
1668
    unsigned int fb_scanline = sysinfo_value("fb.scanline");
1669
    unsigned int fb_visual = sysinfo_value("fb.visual");
1670
 
1671
    unsigned int fbsize = fb_scanline * fb_height;
1672
    void *fb_addr = as_get_mappable_page(fbsize);
1673
 
3908 decky 1674
    if (physmem_map(fb_ph_addr + fb_offset, fb_addr,
1675
        ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE) != 0)
1676
        return -1;
3707 decky 1677
 
1678
    if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1993 decky 1679
        return 0;
1680
 
1681
    return -1;
1363 vana 1682
}
1490 palkovsky 1683
 
3707 decky 1684
/**
1649 cejka 1685
 * @}
1686
 */