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1363 vana 1
/*
4337 svoboda 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
 * @{
4337 svoboda 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>
4338 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
 
4337 svoboda 68
#define DEFAULT_BGCOLOR  0xf0f0f0
69
#define DEFAULT_FGCOLOR  0x000000
1363 vana 70
 
4337 svoboda 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
 
4338 svoboda 76
/** Function to render a pixel from a RGB value. */
4337 svoboda 77
typedef void (*rgb_conv_t)(void *, uint32_t);
1363 vana 78
 
4338 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 {
4337 svoboda 84
    uint8_t *fb_addr;
85
 
1875 jermar 86
    unsigned int xres;
87
    unsigned int yres;
4337 svoboda 88
 
1875 jermar 89
    unsigned int scanline;
4337 svoboda 90
    unsigned int glyphscanline;
91
 
1875 jermar 92
    unsigned int pixelbytes;
4337 svoboda 93
    unsigned int glyphbytes;
94
 
95
    rgb_conv_t rgb_conv;
1485 palkovsky 96
} screen;
1363 vana 97
 
4338 svoboda 98
/** Backbuffer character cell. */
1485 palkovsky 99
typedef struct {
4338 svoboda 100
    uint8_t glyph;
101
    uint32_t fg_color;
102
    uint32_t bg_color;
103
} bb_cell_t;
104
 
105
typedef struct {
4337 svoboda 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 */
4337 svoboda 113
    unsigned int cols;
114
    unsigned int rows;
115
 
4338 svoboda 116
    /*
117
     * Style and glyphs for text printing
118
     */
119
 
120
    /** Current attributes. */
121
    attr_rgb_t attr;
122
 
123
    /** Pre-rendered mask for rendering glyphs. Different viewports
124
     * might use different drawing functions depending on whether their
125
     * scanlines are aligned on a word boundary.*/
4337 svoboda 126
    uint8_t *glyphs;
4338 svoboda 127
 
4337 svoboda 128
    uint8_t *bgpixel;
4338 svoboda 129
 
130
    /** Glyph drawing function for this viewport. */
131
    dg_t dglyph;
4337 svoboda 132
 
1485 palkovsky 133
    /* Auto-cursor position */
4337 svoboda 134
    bool cursor_active;
135
    unsigned int cur_col;
136
    unsigned int cur_row;
137
    bool cursor_shown;
138
 
139
    /* Back buffer */
4338 svoboda 140
    bb_cell_t *backbuf;
4337 svoboda 141
    unsigned int bbsize;
1485 palkovsky 142
} viewport_t;
1363 vana 143
 
1646 palkovsky 144
typedef struct {
4337 svoboda 145
    bool initialized;
146
    bool enabled;
1646 palkovsky 147
    unsigned int vp;
4337 svoboda 148
 
1646 palkovsky 149
    unsigned int pos;
150
    unsigned int animlen;
151
    unsigned int pixmaps[MAX_ANIM_LEN];
152
} animation_t;
4337 svoboda 153
 
1646 palkovsky 154
static animation_t animations[MAX_ANIMATIONS];
4337 svoboda 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;
4337 svoboda 162
 
1552 palkovsky 163
static pixmap_t pixmaps[MAX_PIXMAPS];
1485 palkovsky 164
static viewport_t viewports[128];
165
 
4337 svoboda 166
static bool client_connected = false;  /**< Allow only 1 connection */
1485 palkovsky 167
 
4338 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
 
4339 svoboda 188
static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a);
4338 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
 
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
 
4337 svoboda 201
static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
202
    unsigned int row);
1363 vana 203
 
204
 
4337 svoboda 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
 
4337 svoboda 209
#define COL2X(col)                   ((col) * FONT_WIDTH)
210
#define ROW2Y(row)                   ((row) * FONT_SCANLINES)
1875 jermar 211
 
4337 svoboda 212
#define X2COL(x)                     ((x) / FONT_WIDTH)
213
#define Y2ROW(y)                     ((y) / FONT_SCANLINES)
1363 vana 214
 
4337 svoboda 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)
1363 vana 218
 
4337 svoboda 219
 
220
/** ARGB 8:8:8:8 conversion
221
 *
222
 */
223
static void rgb_0888(void *dst, uint32_t rgb)
1994 decky 224
{
4337 svoboda 225
    *((uint32_t *) dst) = rgb & 0xffffff;
1994 decky 226
}
227
 
4337 svoboda 228
 
229
/** ABGR 8:8:8:8 conversion
230
 *
231
 */
232
static void bgr_0888(void *dst, uint32_t rgb)
1994 decky 233
{
4337 svoboda 234
    *((uint32_t *) dst)
235
        = (BLUE(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | RED(rgb, 8);
1994 decky 236
}
237
 
4337 svoboda 238
 
239
/** BGR 8:8:8 conversion
240
 *
241
 */
242
static void rgb_888(void *dst, uint32_t rgb)
1363 vana 243
{
1871 jermar 244
#if defined(FB_INVERT_ENDIAN)
4337 svoboda 245
    ((uint8_t *) dst)[0] = RED(rgb, 8);
246
    ((uint8_t *) dst)[1] = GREEN(rgb, 8);
247
    ((uint8_t *) dst)[2] = BLUE(rgb, 8);
1363 vana 248
#else
4337 svoboda 249
    ((uint8_t *) dst)[0] = BLUE(rgb, 8);
250
    ((uint8_t *) dst)[1] = GREEN(rgb, 8);
251
    ((uint8_t *) dst)[2] = RED(rgb, 8);
1363 vana 252
#endif
253
}
254
 
255
 
4337 svoboda 256
/** RGB 5:5:5 conversion
257
 *
258
 */
259
static void rgb_555(void *dst, uint32_t rgb)
1993 decky 260
{
4337 svoboda 261
    *((uint16_t *) dst)
262
        = (RED(rgb, 5) << 10) | (GREEN(rgb, 5) << 5) | BLUE(rgb, 5);
1993 decky 263
}
264
 
265
 
4337 svoboda 266
/** RGB 5:6:5 conversion
267
 *
268
 */
269
static void rgb_565(void *dst, uint32_t rgb)
1363 vana 270
{
4337 svoboda 271
    *((uint16_t *) dst)
272
        = (RED(rgb, 5) << 11) | (GREEN(rgb, 6) << 5) | BLUE(rgb, 5);
1363 vana 273
}
274
 
275
 
4337 svoboda 276
/** RGB 3:2:3
277
 *
278
 */
279
static void rgb_323(void *dst, uint32_t rgb)
1363 vana 280
{
4337 svoboda 281
    *((uint8_t *) dst)
282
        = ~((RED(rgb, 3) << 5) | (GREEN(rgb, 2) << 3) | BLUE(rgb, 3));
1363 vana 283
}
284
 
4337 svoboda 285
/** Draw a filled rectangle.
1498 palkovsky 286
 *
4337 svoboda 287
 * @note Need real implementation that does not access VRAM twice.
1498 palkovsky 288
 */
4337 svoboda 289
static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
290
    unsigned int y1, uint32_t color)
1485 palkovsky 291
{
4337 svoboda 292
    unsigned int x, y;
293
    unsigned int copy_bytes;
1672 palkovsky 294
 
4337 svoboda 295
    uint8_t *sp, *dp;
296
    uint8_t cbuf[4];
1672 palkovsky 297
 
4337 svoboda 298
    if (y0 >= y1 || x0 >= x1) return;
299
    screen.rgb_conv(cbuf, color);
300
 
301
    sp = &screen.fb_addr[FB_POS(x0, y0)];
302
    dp = sp;
303
 
304
    /* Draw the first line. */
305
    for (x = x0; x < x1; x++) {
306
        memcpy(dp, cbuf, screen.pixelbytes);
307
        dp += screen.pixelbytes;
1672 palkovsky 308
    }
309
 
4337 svoboda 310
    dp = sp + screen.scanline;
311
    copy_bytes = (x1 - x0) * screen.pixelbytes;
1555 palkovsky 312
 
4337 svoboda 313
    /* Draw the remaining lines by copying. */
314
    for (y = y0 + 1; y < y1; y++) {
315
        memcpy(dp, sp, copy_bytes);
316
        dp += screen.scanline;
317
    }
1485 palkovsky 318
}
319
 
4337 svoboda 320
/** Redraw viewport.
321
 *
322
 * @param vport Viewport to redraw
323
 *
324
 */
325
static void vport_redraw(viewport_t *vport)
1363 vana 326
{
4337 svoboda 327
    unsigned int row, col;
1363 vana 328
 
4337 svoboda 329
    for (row = 0; row < vport->rows; row++) {
330
        for (col = 0; col < vport->cols; col++) {
331
            draw_vp_glyph(vport, false, col, row);
332
        }
333
    }
1559 palkovsky 334
 
4337 svoboda 335
    if (COL2X(vport->cols) < vport->width) {
336
        draw_filled_rect(
337
            vport->x + COL2X(vport->cols), vport->y,
338
            vport->x + vport->width, vport->y + vport->height,
4338 svoboda 339
            vport->attr.bg_color);
4337 svoboda 340
    }
1668 palkovsky 341
 
4337 svoboda 342
    if (ROW2Y(vport->rows) < vport->height) {
343
        draw_filled_rect(
344
            vport->x, vport->y + ROW2Y(vport->rows),
345
            vport->x + vport->width, vport->y + vport->height,
4338 svoboda 346
            vport->attr.bg_color);
1672 palkovsky 347
    }
1559 palkovsky 348
}
349
 
4338 svoboda 350
static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
351
    uint32_t bg_color)
352
{
353
    unsigned i;
4337 svoboda 354
 
4338 svoboda 355
    for (i = 0; i < len; i++) {
356
        backbuf[i].glyph = 0;
357
        backbuf[i].fg_color = fg_color;
358
        backbuf[i].bg_color = bg_color;
359
    }
360
}
361
 
4337 svoboda 362
/** Clear viewport.
363
 *
364
 * @param vport Viewport to clear
365
 *
366
 */
367
static void vport_clear(viewport_t *vport)
1363 vana 368
{
4338 svoboda 369
    backbuf_clear(vport->backbuf, vport->cols * vport->rows,
370
        vport->attr.fg_color, vport->attr.bg_color);
4337 svoboda 371
    vport_redraw(vport);
1363 vana 372
}
373
 
4337 svoboda 374
/** Scroll viewport by the specified number of lines.
1485 palkovsky 375
 *
1709 jermar 376
 * @param vport Viewport to scroll
4337 svoboda 377
 * @param lines Number of lines to scroll
378
 *
1485 palkovsky 379
 */
4337 svoboda 380
static void vport_scroll(viewport_t *vport, int lines)
1363 vana 381
{
4337 svoboda 382
    unsigned int row, col;
383
    unsigned int x, y;
384
    uint8_t glyph;
4338 svoboda 385
    uint32_t fg_color;
386
    uint32_t bg_color;
387
    bb_cell_t *bbp, *xbp;
1672 palkovsky 388
 
4337 svoboda 389
    /*
390
     * Redraw.
391
     */
1363 vana 392
 
4337 svoboda 393
    y = vport->y;
394
    for (row = 0; row < vport->rows; row++) {
395
        x = vport->x;
396
        for (col = 0; col < vport->cols; col++) {
397
            if ((row + lines >= 0) && (row + lines < vport->rows)) {
4338 svoboda 398
                xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
399
                bbp = &vport->backbuf[BB_POS(vport, col, row)];
1672 palkovsky 400
 
4338 svoboda 401
                glyph = xbp->glyph;
402
                fg_color = xbp->fg_color;
403
                bg_color = xbp->bg_color;
404
 
405
                if (bbp->glyph == glyph &&
406
                    bbp->fg_color == xbp->fg_color &&
407
                    bbp->bg_color == xbp->bg_color) {
4337 svoboda 408
                    x += FONT_WIDTH;
409
                    continue;
410
                }
411
            } else {
412
                glyph = 0;
4338 svoboda 413
                fg_color = vport->attr.fg_color;
414
                bg_color = vport->attr.bg_color;
4337 svoboda 415
            }
1672 palkovsky 416
 
4338 svoboda 417
            (*vport->dglyph)(x, y, false, vport->glyphs, glyph,
418
                fg_color, bg_color);
4337 svoboda 419
            x += FONT_WIDTH;
420
        }
421
        y += FONT_SCANLINES;
1672 palkovsky 422
    }
423
 
4337 svoboda 424
    /*
425
     * Scroll backbuffer.
426
     */
427
 
1672 palkovsky 428
    if (lines > 0) {
4337 svoboda 429
        memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
4338 svoboda 430
            vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
431
        backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
432
            vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
4337 svoboda 433
    } else {
434
        memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
4338 svoboda 435
            vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
436
        backbuf_clear(vport->backbuf, - vport->cols * lines,
437
            vport->attr.fg_color, vport->attr.bg_color);
1672 palkovsky 438
    }
439
}
440
 
4337 svoboda 441
/** Render glyphs
1558 palkovsky 442
 *
4337 svoboda 443
 * Convert glyphs from device independent font
444
 * description to current visual representation.
445
 *
446
 * @param vport Viewport
447
 *
1558 palkovsky 448
 */
4337 svoboda 449
static void render_glyphs(viewport_t* vport)
1363 vana 450
{
4337 svoboda 451
    unsigned int glyph;
452
 
453
    for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
454
        unsigned int y;
455
 
456
        for (y = 0; y < FONT_SCANLINES; y++) {
457
            unsigned int x;
458
 
459
            for (x = 0; x < FONT_WIDTH; x++) {
460
                screen.rgb_conv(&vport->glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
461
                    (fb_font[glyph * FONT_SCANLINES + y] & (1 << (7 - x)))
4338 svoboda 462
                    ? 0xffffff : 0x000000);
4337 svoboda 463
 
4338 svoboda 464
                screen.rgb_conv(&vport->glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
465
                    (fb_font[glyph * FONT_SCANLINES + y] & (1 << (7 - x)))
466
                    ? 0x000000 : 0xffffff);
4337 svoboda 467
            }
1509 palkovsky 468
        }
469
    }
4337 svoboda 470
 
4338 svoboda 471
    screen.rgb_conv(vport->bgpixel, vport->attr.bg_color);
1363 vana 472
}
473
 
474
 
1485 palkovsky 475
/** Create new viewport
1363 vana 476
 *
4337 svoboda 477
 * @param x      Origin of the viewport (x).
478
 * @param y      Origin of the viewport (y).
479
 * @param width  Width of the viewport.
480
 * @param height Height of the viewport.
481
 *
482
 * @return New viewport number.
483
 *
1363 vana 484
 */
4337 svoboda 485
static int vport_create(unsigned int x, unsigned int y,
486
    unsigned int width, unsigned int height)
1363 vana 487
{
4337 svoboda 488
    unsigned int i;
489
 
2070 jermar 490
    for (i = 0; i < MAX_VIEWPORTS; i++) {
1485 palkovsky 491
        if (!viewports[i].initialized)
1363 vana 492
            break;
493
    }
1485 palkovsky 494
    if (i == MAX_VIEWPORTS)
495
        return ELIMIT;
4337 svoboda 496
 
497
    unsigned int cols = width / FONT_WIDTH;
498
    unsigned int rows = height / FONT_SCANLINES;
4338 svoboda 499
    unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
4337 svoboda 500
    unsigned int glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
4338 svoboda 501
    unsigned int word_size = sizeof(unsigned long);
4337 svoboda 502
 
4338 svoboda 503
    bb_cell_t *backbuf = (bb_cell_t *) malloc(bbsize);
4337 svoboda 504
    if (!backbuf)
505
        return ENOMEM;
506
 
507
    uint8_t *glyphs = (uint8_t *) malloc(glyphsize);
508
    if (!glyphs) {
509
        free(backbuf);
510
        return ENOMEM;
511
    }
512
 
513
    uint8_t *bgpixel = (uint8_t *) malloc(screen.pixelbytes);
514
    if (!bgpixel) {
515
        free(glyphs);
516
        free(backbuf);
517
        return ENOMEM;
518
    }
4338 svoboda 519
 
520
    backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
4337 svoboda 521
    memset(glyphs, 0, glyphsize);
522
    memset(bgpixel, 0, screen.pixelbytes);
523
 
1485 palkovsky 524
    viewports[i].x = x;
525
    viewports[i].y = y;
526
    viewports[i].width = width;
527
    viewports[i].height = height;
1363 vana 528
 
4337 svoboda 529
    viewports[i].cols = cols;
530
    viewports[i].rows = rows;
531
 
4338 svoboda 532
    viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
533
    viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
1363 vana 534
 
4337 svoboda 535
    viewports[i].glyphs = glyphs;
536
    viewports[i].bgpixel = bgpixel;
4338 svoboda 537
 
538
    /*
539
     * Conditions necessary  to select aligned version:
540
     *
541
     *   - word size is divisible by pixelbytes
542
     *   - cell scanline size is divisible by word size
543
     *   - cell scanlines are word-aligned
544
     */
545
    if ((word_size % screen.pixelbytes) == 0 &&
546
        (FONT_WIDTH * screen.pixelbytes) % word_size == 0 &&
547
        (x * screen.pixelbytes) % word_size == 0 &&
548
        screen.scanline % word_size == 0) {
549
 
550
        viewports[i].dglyph = draw_glyph_aligned;
551
    } else {
552
        viewports[i].dglyph = draw_glyph_fallback;
553
    }
554
 
1489 palkovsky 555
    viewports[i].cur_col = 0;
556
    viewports[i].cur_row = 0;
4337 svoboda 557
    viewports[i].cursor_active = false;
558
    viewports[i].cursor_shown = false;
559
 
560
    viewports[i].bbsize = bbsize;
561
    viewports[i].backbuf = backbuf;
562
 
563
    viewports[i].initialized = true;
564
 
565
    render_glyphs(&viewports[i]);
566
 
1485 palkovsky 567
    return i;
1363 vana 568
}
569
 
4337 svoboda 570
 
1363 vana 571
/** Initialize framebuffer as a chardev output device
572
 *
4337 svoboda 573
 * @param addr   Address of the framebuffer
574
 * @param xres   Screen width in pixels
575
 * @param yres   Screen height in pixels
576
 * @param visual Bits per pixel (8, 16, 24, 32)
577
 * @param scan   Bytes per one scanline
1363 vana 578
 *
579
 */
4337 svoboda 580
static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
581
    unsigned int scan, unsigned int visual)
1363 vana 582
{
1993 decky 583
    switch (visual) {
584
    case VISUAL_INDIRECT_8:
4337 svoboda 585
        screen.rgb_conv = rgb_323;
1886 jermar 586
        screen.pixelbytes = 1;
587
        break;
1993 decky 588
    case VISUAL_RGB_5_5_5:
4337 svoboda 589
        screen.rgb_conv = rgb_555;
1886 jermar 590
        screen.pixelbytes = 2;
591
        break;
1993 decky 592
    case VISUAL_RGB_5_6_5:
4337 svoboda 593
        screen.rgb_conv = rgb_565;
1993 decky 594
        screen.pixelbytes = 2;
1886 jermar 595
        break;
1993 decky 596
    case VISUAL_RGB_8_8_8:
4337 svoboda 597
        screen.rgb_conv = rgb_888;
1993 decky 598
        screen.pixelbytes = 3;
599
        break;
600
    case VISUAL_RGB_8_8_8_0:
4337 svoboda 601
        screen.rgb_conv = rgb_888;
1886 jermar 602
        screen.pixelbytes = 4;
603
        break;
1993 decky 604
    case VISUAL_RGB_0_8_8_8:
4337 svoboda 605
        screen.rgb_conv = rgb_0888;
1993 decky 606
        screen.pixelbytes = 4;
607
        break;
1994 decky 608
    case VISUAL_BGR_0_8_8_8:
4337 svoboda 609
        screen.rgb_conv = bgr_0888;
1994 decky 610
        screen.pixelbytes = 4;
611
        break;
1993 decky 612
    default:
613
        return false;
1363 vana 614
    }
615
 
4337 svoboda 616
    screen.fb_addr = (unsigned char *) addr;
1485 palkovsky 617
    screen.xres = xres;
618
    screen.yres = yres;
619
    screen.scanline = scan;
1363 vana 620
 
4337 svoboda 621
    screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
622
    screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
623
 
1485 palkovsky 624
    /* Create first viewport */
4337 svoboda 625
    vport_create(0, 0, xres, yres);
1993 decky 626
 
627
    return true;
1485 palkovsky 628
}
1363 vana 629
 
4337 svoboda 630
 
4338 svoboda 631
/** Draw a glyph, takes advantage of alignment.
4337 svoboda 632
 *
4338 svoboda 633
 * This version can only be used if the following conditions are met:
4337 svoboda 634
 *
4338 svoboda 635
 *   - word size is divisible by pixelbytes
636
 *   - cell scanline size is divisible by word size
637
 *   - cell scanlines are word-aligned
638
 *
639
 * It makes use of the pre-rendered mask to process (possibly) several
640
 * pixels at once (word size / pixelbytes pixels at a time are processed)
641
 * making it very fast. Most notably this version is not applicable at 24 bits
642
 * per pixel.
643
 *
644
 * @param x     x coordinate of top-left corner on screen.
645
 * @param y     y coordinate of top-left corner on screen.
646
 * @param cursor    Draw glyph with cursor
647
 * @param glyphs    Pointer to font bitmap.
648
 * @param glyph     Code of the glyph to draw.
649
 * @param fg_color  Foreground color.
650
 * @param bg_color  Backgroudn color.
4337 svoboda 651
 */
4338 svoboda 652
static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
653
    uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color)
1500 palkovsky 654
{
4338 svoboda 655
    unsigned int i, yd;
656
    unsigned long fg_buf, bg_buf;
657
    unsigned long *maskp, *dp;
658
    unsigned long mask;
659
    unsigned int ww, d_add;
660
 
661
    /*
662
     * Prepare a pair of words, one filled with foreground-color
663
     * pattern and the other filled with background-color pattern.
664
     */
665
    for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
666
        screen.rgb_conv(&((uint8_t *)&fg_buf)[i * screen.pixelbytes],
667
            fg_color);
668
        screen.rgb_conv(&((uint8_t *)&bg_buf)[i * screen.pixelbytes],
669
            bg_color);
670
    }
671
 
672
 
673
    /* Pointer to the current position in the mask. */
674
    maskp = (unsigned long *) &glyphs[GLYPH_POS(glyph, 0, cursor)];
675
 
676
    /* Pointer to the current position on the screen. */
677
    dp = (unsigned long *) &screen.fb_addr[FB_POS(x, y)];
678
 
679
    /* Width of the character cell in words. */
680
    ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
681
 
682
    /* Offset to add when moving to another screen scanline. */
683
    d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
684
 
685
    for (yd = 0; yd < FONT_SCANLINES; yd++) {
686
        /*
687
         * Now process the cell scanline, combining foreground
688
         * and background color patters using the pre-rendered mask.
689
         */
690
        for (i = 0; i < ww; i++) {
691
            mask = *maskp++;
692
            *dp++ = (fg_buf & mask) | (bg_buf & ~mask);
693
        }
694
 
695
        /* Move to the beginning of the next scanline of the cell. */
696
        dp = (unsigned long *) ((uint8_t *) dp + d_add);
697
    }
4337 svoboda 698
}
699
 
4338 svoboda 700
/** Draw a glyph, fallback version.
701
 *
702
 * This version does not make use of the pre-rendered mask, it uses
703
 * the font bitmap directly. It works always, but it is slower.
704
 *
705
 * @param x     x coordinate of top-left corner on screen.
706
 * @param y     y coordinate of top-left corner on screen.
707
 * @param cursor    Draw glyph with cursor
708
 * @param glyphs    Pointer to font bitmap.
709
 * @param glyph     Code of the glyph to draw.
710
 * @param fg_color  Foreground color.
711
 * @param bg_color  Backgroudn color.
712
 */
713
void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
714
    uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color)
715
{
716
    unsigned int i, j, yd;
717
    uint8_t fg_buf[4], bg_buf[4];
718
    uint8_t *dp, *sp;
719
    unsigned int d_add;
720
    uint8_t b;
721
 
722
    /* Pre-render 1x the foreground and background color pixels. */
723
    if (cursor) {
724
        screen.rgb_conv(fg_buf, bg_color);
725
        screen.rgb_conv(bg_buf, fg_color);
726
    } else {
727
        screen.rgb_conv(fg_buf, fg_color);
728
        screen.rgb_conv(bg_buf, bg_color);
729
    }
730
 
731
    /* Pointer to the current position on the screen. */
732
    dp = (uint8_t *) &screen.fb_addr[FB_POS(x, y)];
733
 
734
    /* Offset to add when moving to another screen scanline. */
735
    d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
736
 
737
    for (yd = 0; yd < FONT_SCANLINES; yd++) {
738
        /* Byte containing bits of the glyph scanline. */
739
        b = fb_font[glyph * FONT_SCANLINES + yd];
740
 
741
        for (i = 0; i < FONT_WIDTH; i++) {
742
            /* Choose color based on the current bit. */
743
            sp = (b & 0x80) ? fg_buf : bg_buf;
744
 
745
            /* Copy the pixel. */
746
            for (j = 0; j < screen.pixelbytes; j++) {
747
                *dp++ = *sp++;
748
            }
749
 
750
            /* Move to the next bit. */
751
            b = b << 1;
752
        }
753
 
754
        /* Move to the beginning of the next scanline of the cell. */
755
        dp += d_add;
756
    }
757
}
758
 
4337 svoboda 759
/** Draw glyph at specified position in viewport.
760
 *
761
 * @param vport  Viewport identification
762
 * @param cursor Draw glyph with cursor
763
 * @param col    Screen position relative to viewport
764
 * @param row    Screen position relative to viewport
765
 *
766
 */
767
static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
768
    unsigned int row)
769
{
770
    unsigned int x = vport->x + COL2X(col);
771
    unsigned int y = vport->y + ROW2Y(row);
4338 svoboda 772
 
4337 svoboda 773
    uint8_t glyph;
4338 svoboda 774
    uint32_t fg_color;
775
    uint32_t bg_color;
4337 svoboda 776
 
4338 svoboda 777
    glyph = vport->backbuf[BB_POS(vport, col, row)].glyph;
778
    fg_color = vport->backbuf[BB_POS(vport, col, row)].fg_color;
779
    bg_color = vport->backbuf[BB_POS(vport, col, row)].bg_color;
780
 
781
    (*vport->dglyph)(x, y, cursor, vport->glyphs, glyph,
782
        fg_color, bg_color);
4337 svoboda 783
}
784
 
785
/** Hide cursor if it is shown
786
 *
787
 */
788
static void cursor_hide(viewport_t *vport)
789
{
790
    if ((vport->cursor_active) && (vport->cursor_shown)) {
791
        draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
792
        vport->cursor_shown = false;
1500 palkovsky 793
    }
794
}
795
 
4337 svoboda 796
 
797
/** Show cursor if cursor showing is enabled
798
 *
799
 */
800
static void cursor_show(viewport_t *vport)
1500 palkovsky 801
{
802
    /* Do not check for cursor_shown */
803
    if (vport->cursor_active) {
4337 svoboda 804
        draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
805
        vport->cursor_shown = true;
1500 palkovsky 806
    }
807
}
808
 
4337 svoboda 809
 
810
/** Invert cursor, if it is enabled
811
 *
812
 */
813
static void cursor_blink(viewport_t *vport)
1500 palkovsky 814
{
815
    if (vport->cursor_shown)
1673 palkovsky 816
        cursor_hide(vport);
1500 palkovsky 817
    else
4337 svoboda 818
        cursor_show(vport);
1500 palkovsky 819
}
820
 
4337 svoboda 821
 
822
/** Draw character at given position relative to viewport
823
 *
824
 * @param vport  Viewport identification
825
 * @param c      Character to draw
826
 * @param col    Screen position relative to viewport
827
 * @param row    Screen position relative to viewport
828
 *
1498 palkovsky 829
 */
4337 svoboda 830
static void draw_char(viewport_t *vport, uint8_t c, unsigned int col, unsigned int row)
1486 palkovsky 831
{
4338 svoboda 832
    bb_cell_t *bbp;
833
 
4337 svoboda 834
    /* Do not hide cursor if we are going to overwrite it */
835
    if ((vport->cursor_active) && (vport->cursor_shown) &&
836
        ((vport->cur_col != col) || (vport->cur_row != row)))
837
        cursor_hide(vport);
4338 svoboda 838
 
839
    bbp = &vport->backbuf[BB_POS(vport, col, row)];
840
    bbp->glyph = c;
841
    bbp->fg_color = vport->attr.fg_color;
842
    bbp->bg_color = vport->attr.bg_color;
843
 
4337 svoboda 844
    draw_vp_glyph(vport, false, col, row);
845
 
1489 palkovsky 846
    vport->cur_col = col;
847
    vport->cur_row = row;
4337 svoboda 848
 
1489 palkovsky 849
    vport->cur_col++;
2025 jermar 850
    if (vport->cur_col >= vport->cols) {
1489 palkovsky 851
        vport->cur_col = 0;
852
        vport->cur_row++;
853
        if (vport->cur_row >= vport->rows)
854
            vport->cur_row--;
1486 palkovsky 855
    }
4337 svoboda 856
 
857
    cursor_show(vport);
1486 palkovsky 858
}
859
 
4337 svoboda 860
 
1552 palkovsky 861
/** Draw text data to viewport
862
 *
1709 jermar 863
 * @param vport Viewport id
4337 svoboda 864
 * @param data  Text data fitting exactly into viewport
865
 *
1552 palkovsky 866
 */
4337 svoboda 867
static void draw_text_data(viewport_t *vport, keyfield_t *data)
1505 palkovsky 868
{
4337 svoboda 869
    unsigned int i;
4338 svoboda 870
    bb_cell_t *bbp;
871
    attrs_t *a;
872
    attr_rgb_t rgb;
4337 svoboda 873
 
2025 jermar 874
    for (i = 0; i < vport->cols * vport->rows; i++) {
4337 svoboda 875
        unsigned int col = i % vport->cols;
876
        unsigned int row = i / vport->cols;
877
 
4338 svoboda 878
        bbp = &vport->backbuf[BB_POS(vport, col, row)];
879
        uint8_t glyph = bbp->glyph;
880
 
4339 svoboda 881
        a = &data[i].attrs;
882
        rgb_from_attr(&rgb, a);
4338 svoboda 883
 
4339 svoboda 884
        bbp->glyph = data[i].character;
885
        bbp->fg_color = rgb.fg_color;
886
        bbp->bg_color = rgb.bg_color;
4338 svoboda 887
 
4339 svoboda 888
        draw_vp_glyph(vport, false, col, row);
1505 palkovsky 889
    }
4337 svoboda 890
    cursor_show(vport);
1505 palkovsky 891
}
892
 
4337 svoboda 893
 
894
static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
1555 palkovsky 895
{
4337 svoboda 896
    int pm = *((int *) data);
897
    pixmap_t *pmap = &pixmaps[pm];
898
    unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
1555 palkovsky 899
 
4337 svoboda 900
    screen.rgb_conv(&pmap->data[pos], color);
901
}
902
 
903
 
904
static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
905
{
906
    viewport_t *vport = (viewport_t *) data;
907
    unsigned int dx = vport->x + x;
908
    unsigned int dy = vport->y + y;
909
 
910
    screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
911
}
912
 
913
 
914
/** Return first free pixmap
915
 *
916
 */
917
static int find_free_pixmap(void)
918
{
919
    unsigned int i;
920
 
921
    for (i = 0; i < MAX_PIXMAPS; i++)
1555 palkovsky 922
        if (!pixmaps[i].data)
923
            return i;
4337 svoboda 924
 
1555 palkovsky 925
    return -1;
926
}
927
 
928
 
4337 svoboda 929
/** Create a new pixmap and return appropriate ID
930
 *
931
 */
932
static int shm2pixmap(unsigned char *shm, size_t size)
1555 palkovsky 933
{
934
    int pm;
935
    pixmap_t *pmap;
4337 svoboda 936
 
1555 palkovsky 937
    pm = find_free_pixmap();
938
    if (pm == -1)
939
        return ELIMIT;
4337 svoboda 940
 
1555 palkovsky 941
    pmap = &pixmaps[pm];
942
 
943
    if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
944
        return EINVAL;
945
 
946
    pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
947
    if (!pmap->data)
948
        return ENOMEM;
4337 svoboda 949
 
950
    ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
951
 
1555 palkovsky 952
    return pm;
953
}
954
 
4337 svoboda 955
 
1552 palkovsky 956
/** Handle shared memory communication calls
957
 *
958
 * Protocol for drawing pixmaps:
959
 * - FB_PREPARE_SHM(client shm identification)
2025 jermar 960
 * - IPC_M_AS_AREA_SEND
4337 svoboda 961
 * - FB_DRAW_PPM(startx, starty)
1552 palkovsky 962
 * - FB_DROP_SHM
963
 *
964
 * Protocol for text drawing
2025 jermar 965
 * - IPC_M_AS_AREA_SEND
1552 palkovsky 966
 * - FB_DRAW_TEXT_DATA
967
 *
968
 * @param callid Callid of the current call
4337 svoboda 969
 * @param call   Current call data
970
 * @param vp     Active viewport
1552 palkovsky 971
 *
4337 svoboda 972
 * @return false if the call was not handled byt this function, true otherwise
973
 *
974
 * Note: this function is not threads safe, you would have
1552 palkovsky 975
 * to redefine static variables with __thread
4337 svoboda 976
 *
1552 palkovsky 977
 */
4337 svoboda 978
static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1547 palkovsky 979
{
980
    static keyfield_t *interbuffer = NULL;
981
    static size_t intersize = 0;
4337 svoboda 982
 
1720 palkovsky 983
    static unsigned char *shm = NULL;
1555 palkovsky 984
    static ipcarg_t shm_id = 0;
985
    static size_t shm_size;
4337 svoboda 986
 
987
    bool handled = true;
988
    int retval = EOK;
1547 palkovsky 989
    viewport_t *vport = &viewports[vp];
4337 svoboda 990
    unsigned int x;
991
    unsigned int y;
992
 
1547 palkovsky 993
    switch (IPC_GET_METHOD(*call)) {
2677 jermar 994
    case IPC_M_SHARE_OUT:
1547 palkovsky 995
        /* We accept one area for data interchange */
1555 palkovsky 996
        if (IPC_GET_ARG1(*call) == shm_id) {
2141 jermar 997
            void *dest = as_get_mappable_page(IPC_GET_ARG2(*call));
1555 palkovsky 998
            shm_size = IPC_GET_ARG2(*call);
4337 svoboda 999
            if (!ipc_answer_1(callid, EOK, (sysarg_t) dest))
1555 palkovsky 1000
                shm = dest;
1547 palkovsky 1001
            else
1555 palkovsky 1002
                shm_id = 0;
4337 svoboda 1003
 
1555 palkovsky 1004
            if (shm[0] != 'P')
4337 svoboda 1005
                return false;
1006
 
1007
            return true;
1547 palkovsky 1008
        } else {
1009
            intersize = IPC_GET_ARG2(*call);
2015 jermar 1010
            receive_comm_area(callid, call, (void *) &interbuffer);
1547 palkovsky 1011
        }
4337 svoboda 1012
        return true;
1547 palkovsky 1013
    case FB_PREPARE_SHM:
1555 palkovsky 1014
        if (shm_id)
1547 palkovsky 1015
            retval = EBUSY;
1016
        else
1555 palkovsky 1017
            shm_id = IPC_GET_ARG1(*call);
1547 palkovsky 1018
        break;
1019
 
1020
    case FB_DROP_SHM:
1555 palkovsky 1021
        if (shm) {
1022
            as_area_destroy(shm);
1023
            shm = NULL;
1547 palkovsky 1024
        }
1555 palkovsky 1025
        shm_id = 0;
1547 palkovsky 1026
        break;
4337 svoboda 1027
 
1555 palkovsky 1028
    case FB_SHM2PIXMAP:
1029
        if (!shm) {
1030
            retval = EINVAL;
1031
            break;
1032
        }
1033
        retval = shm2pixmap(shm, shm_size);
1034
        break;
1547 palkovsky 1035
    case FB_DRAW_PPM:
1555 palkovsky 1036
        if (!shm) {
1547 palkovsky 1037
            retval = EINVAL;
1038
            break;
1039
        }
1040
        x = IPC_GET_ARG1(*call);
1041
        y = IPC_GET_ARG2(*call);
4337 svoboda 1042
 
1043
        if ((x > vport->width) || (y > vport->height)) {
1547 palkovsky 1044
            retval = EINVAL;
1045
            break;
1046
        }
1047
 
2025 jermar 1048
        ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
4337 svoboda 1049
            IPC_GET_ARG2(*call), vport->width - x, vport->height - y, putpixel, (void *) vport);
1547 palkovsky 1050
        break;
1051
    case FB_DRAW_TEXT_DATA:
1052
        if (!interbuffer) {
1053
            retval = EINVAL;
1054
            break;
1055
        }
4337 svoboda 1056
        if (intersize < vport->cols * vport->rows * sizeof(*interbuffer)) {
1547 palkovsky 1057
            retval = EINVAL;
1058
            break;
1059
        }
1673 palkovsky 1060
        draw_text_data(vport, interbuffer);
1547 palkovsky 1061
        break;
1062
    default:
4337 svoboda 1063
        handled = false;
1547 palkovsky 1064
    }
1065
 
1066
    if (handled)
2619 jermar 1067
        ipc_answer_0(callid, retval);
1547 palkovsky 1068
    return handled;
1069
}
1070
 
4337 svoboda 1071
 
1072
static void copy_vp_to_pixmap(viewport_t *vport, pixmap_t *pmap)
1552 palkovsky 1073
{
4337 svoboda 1074
    unsigned int width = vport->width;
1075
    unsigned int height = vport->height;
1076
 
1711 palkovsky 1077
    if (width + vport->x > screen.xres)
1078
        width = screen.xres - vport->x;
2301 decky 1079
    if (height + vport->y > screen.yres)
1711 palkovsky 1080
        height = screen.yres - vport->y;
2301 decky 1081
 
4337 svoboda 1082
    unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1083
    unsigned int realheight = pmap->height <= height ? pmap->height : height;
2301 decky 1084
 
4337 svoboda 1085
    unsigned int srcrowsize = vport->width * screen.pixelbytes;
1086
    unsigned int realrowsize = realwidth * screen.pixelbytes;
1087
 
1088
    unsigned int y;
2301 decky 1089
    for (y = 0; y < realheight; y++) {
4337 svoboda 1090
        unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1091
        memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1711 palkovsky 1092
    }
1093
}
1094
 
4337 svoboda 1095
 
1096
/** Save viewport to pixmap
1097
 *
1098
 */
1099
static int save_vp_to_pixmap(viewport_t *vport)
1711 palkovsky 1100
{
1101
    int pm;
1102
    pixmap_t *pmap;
4337 svoboda 1103
 
1552 palkovsky 1104
    pm = find_free_pixmap();
1105
    if (pm == -1)
1106
        return ELIMIT;
1107
 
1108
    pmap = &pixmaps[pm];
1109
    pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
1110
    if (!pmap->data)
1111
        return ENOMEM;
4337 svoboda 1112
 
1552 palkovsky 1113
    pmap->width = vport->width;
1114
    pmap->height = vport->height;
4337 svoboda 1115
 
1711 palkovsky 1116
    copy_vp_to_pixmap(vport, pmap);
1552 palkovsky 1117
 
1118
    return pm;
1119
}
1120
 
4337 svoboda 1121
 
1552 palkovsky 1122
/** Draw pixmap on screen
1123
 *
1124
 * @param vp Viewport to draw on
1125
 * @param pm Pixmap identifier
4337 svoboda 1126
 *
1552 palkovsky 1127
 */
1128
static int draw_pixmap(int vp, int pm)
1129
{
1130
    pixmap_t *pmap = &pixmaps[pm];
1131
    viewport_t *vport = &viewports[vp];
4337 svoboda 1132
 
1133
    unsigned int width = vport->width;
1134
    unsigned int height = vport->height;
1135
 
1711 palkovsky 1136
    if (width + vport->x > screen.xres)
1137
        width = screen.xres - vport->x;
1138
    if (height + vport->y > screen.yres)
1139
        height = screen.yres - vport->y;
4337 svoboda 1140
 
1552 palkovsky 1141
    if (!pmap->data)
1142
        return EINVAL;
4337 svoboda 1143
 
1144
    unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1145
    unsigned int realheight = pmap->height <= height ? pmap->height : height;
1146
 
1147
    unsigned int srcrowsize = vport->width * screen.pixelbytes;
1148
    unsigned int realrowsize = realwidth * screen.pixelbytes;
1149
 
1150
    unsigned int y;
2070 jermar 1151
    for (y = 0; y < realheight; y++) {
4337 svoboda 1152
        unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1153
        memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1552 palkovsky 1154
    }
4337 svoboda 1155
 
1156
    return EOK;
1552 palkovsky 1157
}
1158
 
4337 svoboda 1159
 
1160
/** Tick animation one step forward
1161
 *
1162
 */
1163
static void anims_tick(void)
1646 palkovsky 1164
{
4337 svoboda 1165
    unsigned int i;
1646 palkovsky 1166
    static int counts = 0;
1167
 
1168
    /* Limit redrawing */
2025 jermar 1169
    counts = (counts + 1) % 8;
1646 palkovsky 1170
    if (counts)
1171
        return;
1172
 
2070 jermar 1173
    for (i = 0; i < MAX_ANIMATIONS; i++) {
4337 svoboda 1174
        if ((!animations[i].animlen) || (!animations[i].initialized) ||
1175
            (!animations[i].enabled))
1646 palkovsky 1176
            continue;
4337 svoboda 1177
 
1178
        draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
1179
        animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1646 palkovsky 1180
    }
1181
}
1182
 
1711 palkovsky 1183
 
4337 svoboda 1184
static unsigned int pointer_x;
1185
static unsigned int pointer_y;
1186
static bool pointer_shown, pointer_enabled;
1711 palkovsky 1187
static int pointer_vport = -1;
1188
static int pointer_pixmap = -1;
1189
 
4337 svoboda 1190
 
1191
static void mouse_show(void)
1711 palkovsky 1192
{
2070 jermar 1193
    int i, j;
1711 palkovsky 1194
    int visibility;
1195
    int color;
1196
    int bytepos;
4337 svoboda 1197
 
1198
    if ((pointer_shown) || (!pointer_enabled))
1723 palkovsky 1199
        return;
4337 svoboda 1200
 
1201
    /* Save image under the pointer. */
1711 palkovsky 1202
    if (pointer_vport == -1) {
4337 svoboda 1203
        pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1711 palkovsky 1204
        if (pointer_vport < 0)
1205
            return;
1206
    } else {
1207
        viewports[pointer_vport].x = pointer_x;
1208
        viewports[pointer_vport].y = pointer_y;
1209
    }
4337 svoboda 1210
 
1711 palkovsky 1211
    if (pointer_pixmap == -1)
1212
        pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
1213
    else
4337 svoboda 1214
        copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
1215
 
1216
    /* Draw mouse pointer. */
2025 jermar 1217
    for (i = 0; i < pointer_height; i++)
1218
        for (j = 0; j < pointer_width; j++) {
1219
            bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
2070 jermar 1220
            visibility = pointer_mask_bits[bytepos] &
2619 jermar 1221
                (1 << (j % 8));
1711 palkovsky 1222
            if (visibility) {
2619 jermar 1223
                color = pointer_bits[bytepos] &
1224
                    (1 << (j % 8)) ? 0 : 0xffffff;
2025 jermar 1225
                if (pointer_x + j < screen.xres && pointer_y +
2619 jermar 1226
                    i < screen.yres)
2025 jermar 1227
                    putpixel(&viewports[0], pointer_x + j,
2619 jermar 1228
                        pointer_y + i, color);
1711 palkovsky 1229
            }
1230
        }
1231
    pointer_shown = 1;
1232
}
1233
 
4337 svoboda 1234
 
1235
static void mouse_hide(void)
1711 palkovsky 1236
{
4337 svoboda 1237
    /* Restore image under the pointer. */
1711 palkovsky 1238
    if (pointer_shown) {
1239
        draw_pixmap(pointer_vport, pointer_pixmap);
1240
        pointer_shown = 0;
1241
    }
1242
}
1243
 
4337 svoboda 1244
 
1245
static void mouse_move(unsigned int x, unsigned int y)
1711 palkovsky 1246
{
1247
    mouse_hide();
1248
    pointer_x = x;
1249
    pointer_y = y;
1250
    mouse_show();
1251
}
1252
 
4337 svoboda 1253
 
1254
static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1646 palkovsky 1255
{
4337 svoboda 1256
    bool handled = true;
1257
    int retval = EOK;
1258
    int i, nvp;
1646 palkovsky 1259
    int newval;
4337 svoboda 1260
 
1646 palkovsky 1261
    switch (IPC_GET_METHOD(*call)) {
1262
    case FB_ANIM_CREATE:
1263
        nvp = IPC_GET_ARG1(*call);
1264
        if (nvp == -1)
1265
            nvp = vp;
2025 jermar 1266
        if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1267
            !viewports[nvp].initialized) {
1646 palkovsky 1268
            retval = EINVAL;
1269
            break;
1270
        }
2025 jermar 1271
        for (i = 0; i < MAX_ANIMATIONS; i++) {
1272
            if (!animations[i].initialized)
1646 palkovsky 1273
                break;
1274
        }
1275
        if (i == MAX_ANIMATIONS) {
1276
            retval = ELIMIT;
1277
            break;
1278
        }
1279
        animations[i].initialized = 1;
1280
        animations[i].animlen = 0;
1281
        animations[i].pos = 0;
1282
        animations[i].enabled = 0;
1283
        animations[i].vp = nvp;
1284
        retval = i;
1285
        break;
1286
    case FB_ANIM_DROP:
1287
        i = IPC_GET_ARG1(*call);
1720 palkovsky 1288
        if (i >= MAX_ANIMATIONS || i < 0) {
1646 palkovsky 1289
            retval = EINVAL;
1290
            break;
1291
        }
1292
        animations[i].initialized = 0;
1293
        break;
1294
    case FB_ANIM_ADDPIXMAP:
1295
        i = IPC_GET_ARG1(*call);
2025 jermar 1296
        if (i >= MAX_ANIMATIONS || i < 0 ||
1297
            !animations[i].initialized) {
1646 palkovsky 1298
            retval = EINVAL;
1299
            break;
1300
        }
1301
        if (animations[i].animlen == MAX_ANIM_LEN) {
1302
            retval = ELIMIT;
1303
            break;
1304
        }
1305
        newval = IPC_GET_ARG2(*call);
2025 jermar 1306
        if (newval < 0 || newval > MAX_PIXMAPS ||
1307
            !pixmaps[newval].data) {
1646 palkovsky 1308
            retval = EINVAL;
1309
            break;
1310
        }
1311
        animations[i].pixmaps[animations[i].animlen++] = newval;
1312
        break;
1313
    case FB_ANIM_CHGVP:
1314
        i = IPC_GET_ARG1(*call);
1315
        if (i >= MAX_ANIMATIONS || i < 0) {
1316
            retval = EINVAL;
1317
            break;
1318
        }
1319
        nvp = IPC_GET_ARG2(*call);
1320
        if (nvp == -1)
1321
            nvp = vp;
2025 jermar 1322
        if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1323
            !viewports[nvp].initialized) {
1646 palkovsky 1324
            retval = EINVAL;
1325
            break;
1326
        }
1327
        animations[i].vp = nvp;
1328
        break;
1329
    case FB_ANIM_START:
1330
    case FB_ANIM_STOP:
1331
        i = IPC_GET_ARG1(*call);
1332
        if (i >= MAX_ANIMATIONS || i < 0) {
1333
            retval = EINVAL;
1334
            break;
1335
        }
1336
        newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
1337
        if (newval ^ animations[i].enabled) {
1338
            animations[i].enabled = newval;
1339
            anims_enabled += newval ? 1 : -1;
1340
        }
1341
        break;
1342
    default:
1343
        handled = 0;
1344
    }
1345
    if (handled)
2619 jermar 1346
        ipc_answer_0(callid, retval);
1646 palkovsky 1347
    return handled;
1348
}
1349
 
4337 svoboda 1350
 
1351
/** Handler for messages concerning pixmap handling
1352
 *
1353
 */
1354
static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1552 palkovsky 1355
{
4337 svoboda 1356
    bool handled = true;
1357
    int retval = EOK;
1358
    int i, nvp;
1359
 
1552 palkovsky 1360
    switch (IPC_GET_METHOD(*call)) {
1361
    case FB_VP_DRAW_PIXMAP:
1362
        nvp = IPC_GET_ARG1(*call);
1363
        if (nvp == -1)
1364
            nvp = vp;
2025 jermar 1365
        if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1366
            !viewports[nvp].initialized) {
1552 palkovsky 1367
            retval = EINVAL;
1368
            break;
1369
        }
1370
        i = IPC_GET_ARG2(*call);
1371
        retval = draw_pixmap(nvp, i);
1372
        break;
1373
    case FB_VP2PIXMAP:
1374
        nvp = IPC_GET_ARG1(*call);
1375
        if (nvp == -1)
1376
            nvp = vp;
2025 jermar 1377
        if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1378
            !viewports[nvp].initialized)
1552 palkovsky 1379
            retval = EINVAL;
1380
        else
1711 palkovsky 1381
            retval = save_vp_to_pixmap(&viewports[nvp]);
1552 palkovsky 1382
        break;
1383
    case FB_DROP_PIXMAP:
1384
        i = IPC_GET_ARG1(*call);
1385
        if (i >= MAX_PIXMAPS) {
1386
            retval = EINVAL;
1387
            break;
1388
        }
1389
        if (pixmaps[i].data) {
1390
            free(pixmaps[i].data);
1391
            pixmaps[i].data = NULL;
1392
        }
1393
        break;
1394
    default:
1395
        handled = 0;
1396
    }
4337 svoboda 1397
 
1552 palkovsky 1398
    if (handled)
2619 jermar 1399
        ipc_answer_0(callid, retval);
1552 palkovsky 1400
    return handled;
1401
 
1402
}
1403
 
4338 svoboda 1404
static int rgb_from_style(attr_rgb_t *rgb, int style)
1405
{
1406
    switch (style) {
1407
    case STYLE_NORMAL:
1408
        rgb->fg_color = color_table[COLOR_BLACK];
1409
        rgb->bg_color = color_table[COLOR_WHITE];
1410
        break;
1411
    case STYLE_EMPHASIS:
1412
        rgb->fg_color = color_table[COLOR_RED];
1413
        rgb->bg_color = color_table[COLOR_WHITE];
1414
        break;
1415
    default:
1416
        return EINVAL;
1417
    }
1418
 
1419
    return EOK;
1420
}
1421
 
1422
static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
1423
    ipcarg_t bg_color, ipcarg_t flags)
1424
{
1425
    fg_color = (fg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1426
    bg_color = (bg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1427
 
1428
    rgb->fg_color = color_table[fg_color];
1429
    rgb->bg_color = color_table[bg_color];
1430
 
1431
    return EOK;
1432
}
1433
 
4339 svoboda 1434
static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a)
1435
{
1436
    int rc;
1437
 
1438
    switch (a->t) {
1439
    case at_style:
1440
        rc = rgb_from_style(rgb, a->a.s.style);
1441
        break;
1442
    case at_idx:
1443
        rc = rgb_from_idx(rgb, a->a.i.fg_color,
1444
            a->a.i.bg_color, a->a.i.flags);
1445
        break;
1446
    case at_rgb:
1447
        *rgb = a->a.r;
1448
        rc = EOK;
1449
        break;
1450
    }
1451
 
1452
    return rc;
1453
}
1454
 
4338 svoboda 1455
static int fb_set_style(viewport_t *vport, ipcarg_t style)
1456
{
1457
    return rgb_from_style(&vport->attr, (int) style);
1458
}
1459
 
1460
static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
1461
    ipcarg_t bg_color, ipcarg_t flags)
1462
{
1463
    return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
1464
}
1465
 
1498 palkovsky 1466
/** Function for handling connections to FB
1467
 *
1468
 */
4337 svoboda 1469
static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363 vana 1470
{
4337 svoboda 1471
    unsigned int vp = 0;
1472
    viewport_t *vport = &viewports[vp];
1473
 
1485 palkovsky 1474
    if (client_connected) {
2619 jermar 1475
        ipc_answer_0(iid, ELIMIT);
1485 palkovsky 1476
        return;
1477
    }
4337 svoboda 1478
 
1479
    /* Accept connection */
1480
    client_connected = true;
1481
    ipc_answer_0(iid, EOK);
1482
 
1483
    while (true) {
1484
        ipc_callid_t callid;
1485
        ipc_call_t call;
1486
        int retval;
1487
        unsigned int i;
1488
        int scroll;
1489
        uint8_t glyph;
1490
        unsigned int row, col;
1491
 
1492
        if ((vport->cursor_active) || (anims_enabled))
2070 jermar 1493
            callid = async_get_call_timeout(&call, 250000);
1640 palkovsky 1494
        else
1495
            callid = async_get_call(&call);
4337 svoboda 1496
 
1713 palkovsky 1497
        mouse_hide();
1500 palkovsky 1498
        if (!callid) {
1673 palkovsky 1499
            cursor_blink(vport);
1646 palkovsky 1500
            anims_tick();
1723 palkovsky 1501
            mouse_show();
1500 palkovsky 1502
            continue;
1503
        }
4337 svoboda 1504
 
1547 palkovsky 1505
        if (shm_handle(callid, &call, vp))
1506
            continue;
4337 svoboda 1507
 
1552 palkovsky 1508
        if (pixmap_handle(callid, &call, vp))
1509
            continue;
4337 svoboda 1510
 
1646 palkovsky 1511
        if (anim_handle(callid, &call, vp))
1512
            continue;
4337 svoboda 1513
 
1514
        switch (IPC_GET_METHOD(call)) {
1485 palkovsky 1515
        case IPC_M_PHONE_HUNGUP:
4337 svoboda 1516
            client_connected = false;
1517
 
1518
            /* Cleanup other viewports */
2025 jermar 1519
            for (i = 1; i < MAX_VIEWPORTS; i++)
4337 svoboda 1520
                vport->initialized = false;
1521
 
1522
            /* Exit thread */
1523
            return;
1524
 
1485 palkovsky 1525
        case FB_PUTCHAR:
4337 svoboda 1526
            glyph = IPC_GET_ARG1(call);
1485 palkovsky 1527
            row = IPC_GET_ARG2(call);
1528
            col = IPC_GET_ARG3(call);
4337 svoboda 1529
 
1530
            if ((col >= vport->cols) || (row >= vport->rows)) {
1485 palkovsky 1531
                retval = EINVAL;
1532
                break;
1533
            }
2619 jermar 1534
            ipc_answer_0(callid, EOK);
4337 svoboda 1535
 
1536
            draw_char(vport, glyph, col, row);
1537
 
1538
            /* Message already answered */
1539
            continue;
1485 palkovsky 1540
        case FB_CLEAR:
4337 svoboda 1541
            vport_clear(vport);
1542
            cursor_show(vport);
1543
            retval = EOK;
1485 palkovsky 1544
            break;
4337 svoboda 1545
        case FB_CURSOR_GOTO:
1486 palkovsky 1546
            row = IPC_GET_ARG1(call);
1547
            col = IPC_GET_ARG2(call);
4337 svoboda 1548
 
1549
            if ((col >= vport->cols) || (row >= vport->rows)) {
1486 palkovsky 1550
                retval = EINVAL;
1551
                break;
1552
            }
4337 svoboda 1553
            retval = EOK;
1554
 
1673 palkovsky 1555
            cursor_hide(vport);
1486 palkovsky 1556
            vport->cur_col = col;
1557
            vport->cur_row = row;
4337 svoboda 1558
            cursor_show(vport);
1559
            break;
1486 palkovsky 1560
        case FB_CURSOR_VISIBILITY:
1673 palkovsky 1561
            cursor_hide(vport);
1500 palkovsky 1562
            vport->cursor_active = IPC_GET_ARG1(call);
4337 svoboda 1563
            cursor_show(vport);
1564
            retval = EOK;
1486 palkovsky 1565
            break;
1485 palkovsky 1566
        case FB_GET_CSIZE:
2619 jermar 1567
            ipc_answer_2(callid, EOK, vport->rows, vport->cols);
1485 palkovsky 1568
            continue;
1486 palkovsky 1569
        case FB_SCROLL:
4337 svoboda 1570
            scroll = IPC_GET_ARG1(call);
1571
            if ((scroll > (int) vport->rows) || (scroll < (-(int) vport->rows))) {
1486 palkovsky 1572
                retval = EINVAL;
1573
                break;
1574
            }
1673 palkovsky 1575
            cursor_hide(vport);
4337 svoboda 1576
            vport_scroll(vport, scroll);
1577
            cursor_show(vport);
1578
            retval = EOK;
1486 palkovsky 1579
            break;
1580
        case FB_VIEWPORT_SWITCH:
1581
            i = IPC_GET_ARG1(call);
4337 svoboda 1582
            if (i >= MAX_VIEWPORTS) {
1486 palkovsky 1583
                retval = EINVAL;
1584
                break;
1585
            }
4337 svoboda 1586
            if (!viewports[i].initialized) {
1486 palkovsky 1587
                retval = EADDRNOTAVAIL;
1588
                break;
1589
            }
1673 palkovsky 1590
            cursor_hide(vport);
1486 palkovsky 1591
            vp = i;
1592
            vport = &viewports[vp];
4337 svoboda 1593
            cursor_show(vport);
1594
            retval = EOK;
1486 palkovsky 1595
            break;
1596
        case FB_VIEWPORT_CREATE:
4337 svoboda 1597
            retval = vport_create(IPC_GET_ARG1(call) >> 16,
2619 jermar 1598
                IPC_GET_ARG1(call) & 0xffff,
1599
                IPC_GET_ARG2(call) >> 16,
1600
                IPC_GET_ARG2(call) & 0xffff);
1486 palkovsky 1601
            break;
1602
        case FB_VIEWPORT_DELETE:
1603
            i = IPC_GET_ARG1(call);
4337 svoboda 1604
            if (i >= MAX_VIEWPORTS) {
1486 palkovsky 1605
                retval = EINVAL;
1606
                break;
1607
            }
4337 svoboda 1608
            if (!viewports[i].initialized) {
1486 palkovsky 1609
                retval = EADDRNOTAVAIL;
1610
                break;
1611
            }
4337 svoboda 1612
            viewports[i].initialized = false;
1613
            if (viewports[i].glyphs)
1614
                free(viewports[i].glyphs);
1615
            if (viewports[i].bgpixel)
1616
                free(viewports[i].bgpixel);
1617
            if (viewports[i].backbuf)
1618
                free(viewports[i].backbuf);
1619
            retval = EOK;
1486 palkovsky 1620
            break;
1621
        case FB_SET_STYLE:
4338 svoboda 1622
            retval = fb_set_style(vport, IPC_GET_ARG1(call));
1623
            break;
1624
        case FB_SET_COLOR:
1625
            retval = fb_set_color(vport, IPC_GET_ARG1(call),
1626
                IPC_GET_ARG2(call), IPC_GET_ARG3(call));
1627
            break;
1628
        case FB_SET_RGB_COLOR:
1629
            vport->attr.fg_color = IPC_GET_ARG1(call);
1630
            vport->attr.bg_color = IPC_GET_ARG2(call);
4337 svoboda 1631
            retval = EOK;
1486 palkovsky 1632
            break;
1633
        case FB_GET_RESOLUTION:
2619 jermar 1634
            ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1486 palkovsky 1635
            continue;
1707 palkovsky 1636
        case FB_POINTER_MOVE:
4337 svoboda 1637
            pointer_enabled = true;
1711 palkovsky 1638
            mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
4337 svoboda 1639
            retval = EOK;
1707 palkovsky 1640
            break;
1485 palkovsky 1641
        default:
1642
            retval = ENOENT;
1643
        }
2619 jermar 1644
        ipc_answer_0(callid, retval);
1363 vana 1645
    }
1485 palkovsky 1646
}
1363 vana 1647
 
4337 svoboda 1648
/** Initialization of framebuffer
1649
 *
1650
 */
1651
int fb_init(void)
1485 palkovsky 1652
{
1490 palkovsky 1653
    async_set_client_connection(fb_client_connection);
1485 palkovsky 1654
 
4337 svoboda 1655
    void *fb_ph_addr = (void *) sysinfo_value("fb.address.physical");
1656
    unsigned int fb_offset = sysinfo_value("fb.offset");
1657
    unsigned int fb_width = sysinfo_value("fb.width");
1658
    unsigned int fb_height = sysinfo_value("fb.height");
1659
    unsigned int fb_scanline = sysinfo_value("fb.scanline");
1660
    unsigned int fb_visual = sysinfo_value("fb.visual");
1661
 
1662
    unsigned int fbsize = fb_scanline * fb_height;
1663
    void *fb_addr = as_get_mappable_page(fbsize);
1664
 
1665
    physmem_map(fb_ph_addr + fb_offset, fb_addr,
1666
        ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE);
1667
 
1668
    if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1993 decky 1669
        return 0;
1670
 
1671
    return -1;
1363 vana 1672
}
1490 palkovsky 1673
 
4337 svoboda 1674
/**
1649 cejka 1675
 * @}
1676
 */