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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
4348 svoboda 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>
4691 svoboda 54
#include <io/color.h>
55
#include <io/style.h>
1392 palkovsky 56
#include <async.h>
4691 svoboda 57
#include <fibril.h>
1993 decky 58
#include <bool.h>
4691 svoboda 59
#include <stdio.h>
60
#include <byteorder.h>
1505 palkovsky 61
 
1404 palkovsky 62
#include "font-8x16.h"
1363 vana 63
#include "fb.h"
1505 palkovsky 64
#include "main.h"
65
#include "../console/screenbuffer.h"
1547 palkovsky 66
#include "ppm.h"
1363 vana 67
 
1711 palkovsky 68
#include "pointer.xbm"
69
#include "pointer_mask.xbm"
70
 
4337 svoboda 71
#define DEFAULT_BGCOLOR  0xf0f0f0
72
#define DEFAULT_FGCOLOR  0x000000
1363 vana 73
 
4348 svoboda 74
#define GLYPH_UNAVAIL    '?'
75
 
4337 svoboda 76
#define MAX_ANIM_LEN     8
77
#define MAX_ANIMATIONS   4
78
#define MAX_PIXMAPS      256  /**< Maximum number of saved pixmaps */
79
#define MAX_VIEWPORTS    128  /**< Viewport is a rectangular area on the screen */
1363 vana 80
 
4338 svoboda 81
/** Function to render a pixel from a RGB value. */
4337 svoboda 82
typedef void (*rgb_conv_t)(void *, uint32_t);
1363 vana 83
 
4348 svoboda 84
/** Function to render a bit mask. */
85
typedef void (*mask_conv_t)(void *, bool);
86
 
4338 svoboda 87
/** Function to draw a glyph. */
88
typedef void (*dg_t)(unsigned int x, unsigned int y, bool cursor,
4348 svoboda 89
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
4338 svoboda 90
 
1485 palkovsky 91
struct {
4337 svoboda 92
    uint8_t *fb_addr;
93
 
1875 jermar 94
    unsigned int xres;
95
    unsigned int yres;
4337 svoboda 96
 
1875 jermar 97
    unsigned int scanline;
4337 svoboda 98
    unsigned int glyphscanline;
99
 
1875 jermar 100
    unsigned int pixelbytes;
4337 svoboda 101
    unsigned int glyphbytes;
102
 
4348 svoboda 103
    /** Pre-rendered mask for rendering glyphs. Specific for the visual. */
104
    uint8_t *glyphs;
105
 
4337 svoboda 106
    rgb_conv_t rgb_conv;
4348 svoboda 107
    mask_conv_t mask_conv;
1485 palkovsky 108
} screen;
1363 vana 109
 
4338 svoboda 110
/** Backbuffer character cell. */
1485 palkovsky 111
typedef struct {
4348 svoboda 112
    uint32_t glyph;
4338 svoboda 113
    uint32_t fg_color;
114
    uint32_t bg_color;
115
} bb_cell_t;
116
 
117
typedef struct {
4337 svoboda 118
    bool initialized;
119
    unsigned int x;
120
    unsigned int y;
121
    unsigned int width;
122
    unsigned int height;
123
 
1485 palkovsky 124
    /* Text support in window */
4337 svoboda 125
    unsigned int cols;
126
    unsigned int rows;
127
 
4338 svoboda 128
    /*
129
     * Style and glyphs for text printing
130
     */
4348 svoboda 131
 
4338 svoboda 132
    /** Current attributes. */
133
    attr_rgb_t attr;
4348 svoboda 134
 
135
    uint8_t *bgpixel;
136
 
137
    /**
138
     * Glyph drawing function for this viewport.  Different viewports
4338 svoboda 139
     * might use different drawing functions depending on whether their
4348 svoboda 140
     * scanlines are aligned on a word boundary.
141
     */
4338 svoboda 142
    dg_t dglyph;
4337 svoboda 143
 
1485 palkovsky 144
    /* Auto-cursor position */
4337 svoboda 145
    bool cursor_active;
146
    unsigned int cur_col;
147
    unsigned int cur_row;
148
    bool cursor_shown;
149
 
150
    /* Back buffer */
4338 svoboda 151
    bb_cell_t *backbuf;
4337 svoboda 152
    unsigned int bbsize;
1485 palkovsky 153
} viewport_t;
1363 vana 154
 
1646 palkovsky 155
typedef struct {
4337 svoboda 156
    bool initialized;
157
    bool enabled;
1646 palkovsky 158
    unsigned int vp;
4337 svoboda 159
 
1646 palkovsky 160
    unsigned int pos;
161
    unsigned int animlen;
162
    unsigned int pixmaps[MAX_ANIM_LEN];
163
} animation_t;
4337 svoboda 164
 
1646 palkovsky 165
static animation_t animations[MAX_ANIMATIONS];
4337 svoboda 166
static bool anims_enabled;
1646 palkovsky 167
 
1552 palkovsky 168
typedef struct {
169
    unsigned int width;
170
    unsigned int height;
1781 jermar 171
    uint8_t *data;
1552 palkovsky 172
} pixmap_t;
4337 svoboda 173
 
1552 palkovsky 174
static pixmap_t pixmaps[MAX_PIXMAPS];
1485 palkovsky 175
static viewport_t viewports[128];
176
 
4337 svoboda 177
static bool client_connected = false;  /**< Allow only 1 connection */
1485 palkovsky 178
 
4338 svoboda 179
static uint32_t color_table[16] = {
4348 svoboda 180
    [COLOR_BLACK]       = 0x000000,
181
    [COLOR_BLUE]        = 0x0000f0,
182
    [COLOR_GREEN]       = 0x00f000,
183
    [COLOR_CYAN]        = 0x00f0f0,
184
    [COLOR_RED]         = 0xf00000,
185
    [COLOR_MAGENTA]     = 0xf000f0,
186
    [COLOR_YELLOW]      = 0xf0f000,
187
    [COLOR_WHITE]       = 0xf0f0f0,
188
 
189
    [8 + COLOR_BLACK]   = 0x000000,
190
    [8 + COLOR_BLUE]    = 0x0000ff,
191
    [8 + COLOR_GREEN]   = 0x00ff00,
192
    [8 + COLOR_CYAN]    = 0x00ffff,
193
    [8 + COLOR_RED]     = 0xff0000,
194
    [8 + COLOR_MAGENTA] = 0xff00ff,
195
    [8 + COLOR_YELLOW]  = 0xffff00,
196
    [8 + COLOR_WHITE]   = 0xffffff,
4338 svoboda 197
};
198
 
4339 svoboda 199
static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a);
4338 svoboda 200
static int rgb_from_style(attr_rgb_t *rgb, int style);
201
static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
202
    ipcarg_t bg_color, ipcarg_t flags);
203
 
204
static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
205
    ipcarg_t bg_color, ipcarg_t attr);
206
 
207
static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
4348 svoboda 208
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
4338 svoboda 209
static void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
4348 svoboda 210
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
4338 svoboda 211
 
4337 svoboda 212
static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
213
    unsigned int row);
1363 vana 214
 
215
 
4691 svoboda 216
#define RED(x, bits)                 (((x) >> (8 + 8 + 8 - (bits))) & ((1 << (bits)) - 1))
217
#define GREEN(x, bits)               (((x) >> (8 + 8 - (bits))) & ((1 << (bits)) - 1))
218
#define BLUE(x, bits)                (((x) >> (8 - (bits))) & ((1 << (bits)) - 1))
1363 vana 219
 
4337 svoboda 220
#define COL2X(col)                   ((col) * FONT_WIDTH)
221
#define ROW2Y(row)                   ((row) * FONT_SCANLINES)
1875 jermar 222
 
4337 svoboda 223
#define X2COL(x)                     ((x) / FONT_WIDTH)
224
#define Y2ROW(y)                     ((y) / FONT_SCANLINES)
1363 vana 225
 
4337 svoboda 226
#define FB_POS(x, y)                 ((y) * screen.scanline + (x) * screen.pixelbytes)
227
#define BB_POS(vport, col, row)      ((row) * vport->cols + (col))
228
#define GLYPH_POS(glyph, y, cursor)  (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
1363 vana 229
 
4691 svoboda 230
/*
231
 * RGB conversion and mask functions.
4337 svoboda 232
 *
4691 svoboda 233
 * These functions write an RGB value to some memory in some predefined format.
234
 * The naming convention corresponds to the format created by these functions.
235
 * The functions use the so called network order (i.e. big endian) with respect
236
 * to their names.
4337 svoboda 237
 */
4691 svoboda 238
 
4337 svoboda 239
static void rgb_0888(void *dst, uint32_t rgb)
1994 decky 240
{
4691 svoboda 241
    *((uint32_t *) dst) = host2uint32_t_be((0 << 24) |
242
        (RED(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | (BLUE(rgb, 8)));
1994 decky 243
}
244
 
4691 svoboda 245
static void bgr_0888(void *dst, uint32_t rgb)
246
{
247
    *((uint32_t *) dst) = host2uint32_t_be((0 << 24) |
248
        (BLUE(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | (RED(rgb, 8)));
249
}
250
 
4348 svoboda 251
static void mask_0888(void *dst, bool mask)
252
{
4691 svoboda 253
    bgr_0888(dst, mask ? 0xffffff : 0);
4348 svoboda 254
}
4337 svoboda 255
 
4691 svoboda 256
static void rgb_8880(void *dst, uint32_t rgb)
257
{
258
    *((uint32_t *) dst) = host2uint32_t_be((RED(rgb, 8) << 24) |
259
        (GREEN(rgb, 8) << 16) | (BLUE(rgb, 8) << 8) | 0);
260
}
4348 svoboda 261
 
4691 svoboda 262
static void bgr_8880(void *dst, uint32_t rgb)
1994 decky 263
{
4691 svoboda 264
    *((uint32_t *) dst) = host2uint32_t_be((BLUE(rgb, 8) << 24) |
265
        (GREEN(rgb, 8) << 16) | (RED(rgb, 8) << 8) | 0);
1994 decky 266
}
267
 
4691 svoboda 268
static void mask_8880(void *dst, bool mask)
269
{
270
    bgr_8880(dst, mask ? 0xffffff : 0);
271
}
4337 svoboda 272
 
273
static void rgb_888(void *dst, uint32_t rgb)
1363 vana 274
{
4691 svoboda 275
    ((uint8_t *) dst)[0] = RED(rgb, 8);
276
    ((uint8_t *) dst)[1] = GREEN(rgb, 8);
277
    ((uint8_t *) dst)[2] = BLUE(rgb, 8);
278
}
279
 
280
static void bgr_888(void *dst, uint32_t rgb)
281
{
4337 svoboda 282
    ((uint8_t *) dst)[0] = BLUE(rgb, 8);
283
    ((uint8_t *) dst)[1] = GREEN(rgb, 8);
284
    ((uint8_t *) dst)[2] = RED(rgb, 8);
1363 vana 285
}
286
 
4348 svoboda 287
static void mask_888(void *dst, bool mask)
288
{
4691 svoboda 289
    bgr_888(dst, mask ? 0xffffff : 0);
4348 svoboda 290
}
1363 vana 291
 
4691 svoboda 292
static void rgb_555_be(void *dst, uint32_t rgb)
293
{
294
    *((uint16_t *) dst) = host2uint16_t_be(RED(rgb, 5) << 10 |
295
        GREEN(rgb, 5) << 5 | BLUE(rgb, 5));
296
}
4348 svoboda 297
 
4691 svoboda 298
static void rgb_555_le(void *dst, uint32_t rgb)
4342 svoboda 299
{
4691 svoboda 300
    *((uint16_t *) dst) = host2uint16_t_le(RED(rgb, 5) << 10 |
301
        GREEN(rgb, 5) << 5 | BLUE(rgb, 5));
4342 svoboda 302
}
303
 
4691 svoboda 304
static void rgb_565_be(void *dst, uint32_t rgb)
1993 decky 305
{
4691 svoboda 306
    *((uint16_t *) dst) = host2uint16_t_be(RED(rgb, 5) << 11 |
307
        GREEN(rgb, 6) << 5 | BLUE(rgb, 5));
1993 decky 308
}
309
 
4691 svoboda 310
static void rgb_565_le(void *dst, uint32_t rgb)
4348 svoboda 311
{
4691 svoboda 312
    *((uint16_t *) dst) = host2uint16_t_le(RED(rgb, 5) << 11 |
313
        GREEN(rgb, 6) << 5 | BLUE(rgb, 5));
4348 svoboda 314
}
1993 decky 315
 
4691 svoboda 316
static void mask_555(void *dst, bool mask)
1363 vana 317
{
4691 svoboda 318
    rgb_555_be(dst, mask ? 0xffffff : 0);
1363 vana 319
}
320
 
4348 svoboda 321
static void mask_565(void *dst, bool mask)
322
{
4691 svoboda 323
    rgb_565_be(dst, mask ? 0xffffff : 0);
4348 svoboda 324
}
1363 vana 325
 
4691 svoboda 326
static void bgr_323(void *dst, uint32_t rgb)
1363 vana 327
{
4337 svoboda 328
    *((uint8_t *) dst)
329
        = ~((RED(rgb, 3) << 5) | (GREEN(rgb, 2) << 3) | BLUE(rgb, 3));
1363 vana 330
}
331
 
4348 svoboda 332
static void mask_323(void *dst, bool mask)
333
{
4691 svoboda 334
    bgr_323(dst, mask ? 0x0 : ~0x0);
4348 svoboda 335
}
336
 
4337 svoboda 337
/** Draw a filled rectangle.
1498 palkovsky 338
 *
4337 svoboda 339
 * @note Need real implementation that does not access VRAM twice.
4348 svoboda 340
 *
1498 palkovsky 341
 */
4337 svoboda 342
static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
343
    unsigned int y1, uint32_t color)
1485 palkovsky 344
{
4348 svoboda 345
    unsigned int x;
346
    unsigned int y;
4337 svoboda 347
    unsigned int copy_bytes;
4348 svoboda 348
 
349
    uint8_t *sp;
350
    uint8_t *dp;
4337 svoboda 351
    uint8_t cbuf[4];
4348 svoboda 352
 
353
    if ((y0 >= y1) || (x0 >= x1))
354
        return;
355
 
4337 svoboda 356
    screen.rgb_conv(cbuf, color);
4348 svoboda 357
 
4337 svoboda 358
    sp = &screen.fb_addr[FB_POS(x0, y0)];
359
    dp = sp;
4348 svoboda 360
 
4337 svoboda 361
    /* Draw the first line. */
362
    for (x = x0; x < x1; x++) {
363
        memcpy(dp, cbuf, screen.pixelbytes);
364
        dp += screen.pixelbytes;
1672 palkovsky 365
    }
4348 svoboda 366
 
4337 svoboda 367
    dp = sp + screen.scanline;
368
    copy_bytes = (x1 - x0) * screen.pixelbytes;
4348 svoboda 369
 
4337 svoboda 370
    /* Draw the remaining lines by copying. */
371
    for (y = y0 + 1; y < y1; y++) {
372
        memcpy(dp, sp, copy_bytes);
373
        dp += screen.scanline;
374
    }
1485 palkovsky 375
}
376
 
4337 svoboda 377
/** Redraw viewport.
378
 *
379
 * @param vport Viewport to redraw
380
 *
381
 */
382
static void vport_redraw(viewport_t *vport)
1363 vana 383
{
4691 svoboda 384
    unsigned int col;
4348 svoboda 385
    unsigned int row;
386
 
4337 svoboda 387
    for (row = 0; row < vport->rows; row++) {
388
        for (col = 0; col < vport->cols; col++) {
389
            draw_vp_glyph(vport, false, col, row);
390
        }
391
    }
4348 svoboda 392
 
4337 svoboda 393
    if (COL2X(vport->cols) < vport->width) {
394
        draw_filled_rect(
395
            vport->x + COL2X(vport->cols), vport->y,
396
            vport->x + vport->width, vport->y + vport->height,
4338 svoboda 397
            vport->attr.bg_color);
4337 svoboda 398
    }
4348 svoboda 399
 
4337 svoboda 400
    if (ROW2Y(vport->rows) < vport->height) {
401
        draw_filled_rect(
402
            vport->x, vport->y + ROW2Y(vport->rows),
403
            vport->x + vport->width, vport->y + vport->height,
4338 svoboda 404
            vport->attr.bg_color);
1672 palkovsky 405
    }
1559 palkovsky 406
}
407
 
4338 svoboda 408
static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
409
    uint32_t bg_color)
410
{
4348 svoboda 411
    size_t i;
412
 
4338 svoboda 413
    for (i = 0; i < len; i++) {
414
        backbuf[i].glyph = 0;
415
        backbuf[i].fg_color = fg_color;
416
        backbuf[i].bg_color = bg_color;
417
    }
418
}
419
 
4337 svoboda 420
/** Clear viewport.
421
 *
422
 * @param vport Viewport to clear
423
 *
424
 */
425
static void vport_clear(viewport_t *vport)
1363 vana 426
{
4338 svoboda 427
    backbuf_clear(vport->backbuf, vport->cols * vport->rows,
428
        vport->attr.fg_color, vport->attr.bg_color);
4337 svoboda 429
    vport_redraw(vport);
1363 vana 430
}
431
 
4337 svoboda 432
/** Scroll viewport by the specified number of lines.
1485 palkovsky 433
 *
1709 jermar 434
 * @param vport Viewport to scroll
4337 svoboda 435
 * @param lines Number of lines to scroll
436
 *
1485 palkovsky 437
 */
4337 svoboda 438
static void vport_scroll(viewport_t *vport, int lines)
1363 vana 439
{
4691 svoboda 440
    unsigned int col;
4348 svoboda 441
    unsigned int row;
442
    unsigned int x;
443
    unsigned int y;
444
    uint32_t glyph;
4338 svoboda 445
    uint32_t fg_color;
446
    uint32_t bg_color;
4348 svoboda 447
    bb_cell_t *bbp;
448
    bb_cell_t *xbp;
449
 
4337 svoboda 450
    /*
451
     * Redraw.
452
     */
4348 svoboda 453
 
4337 svoboda 454
    y = vport->y;
455
    for (row = 0; row < vport->rows; row++) {
456
        x = vport->x;
457
        for (col = 0; col < vport->cols; col++) {
4691 svoboda 458
            if (((int) row + lines >= 0) &&
459
                ((int) row + lines < (int) vport->rows)) {
4338 svoboda 460
                xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
461
                bbp = &vport->backbuf[BB_POS(vport, col, row)];
4348 svoboda 462
 
4338 svoboda 463
                glyph = xbp->glyph;
464
                fg_color = xbp->fg_color;
465
                bg_color = xbp->bg_color;
4348 svoboda 466
 
467
                if ((bbp->glyph == glyph)
468
                   && (bbp->fg_color == xbp->fg_color)
469
                   && (bbp->bg_color == xbp->bg_color)) {
4337 svoboda 470
                    x += FONT_WIDTH;
471
                    continue;
472
                }
473
            } else {
474
                glyph = 0;
4338 svoboda 475
                fg_color = vport->attr.fg_color;
476
                bg_color = vport->attr.bg_color;
4337 svoboda 477
            }
4348 svoboda 478
 
479
            (*vport->dglyph)(x, y, false, screen.glyphs, glyph,
4338 svoboda 480
                fg_color, bg_color);
4337 svoboda 481
            x += FONT_WIDTH;
482
        }
483
        y += FONT_SCANLINES;
1672 palkovsky 484
    }
4348 svoboda 485
 
4337 svoboda 486
    /*
487
     * Scroll backbuffer.
488
     */
4348 svoboda 489
 
1672 palkovsky 490
    if (lines > 0) {
4337 svoboda 491
        memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
4338 svoboda 492
            vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
493
        backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
494
            vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
4337 svoboda 495
    } else {
496
        memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
4338 svoboda 497
            vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
498
        backbuf_clear(vport->backbuf, - vport->cols * lines,
499
            vport->attr.fg_color, vport->attr.bg_color);
1672 palkovsky 500
    }
501
}
502
 
4337 svoboda 503
/** Render glyphs
1558 palkovsky 504
 *
4337 svoboda 505
 * Convert glyphs from device independent font
506
 * description to current visual representation.
507
 *
1558 palkovsky 508
 */
4348 svoboda 509
static void render_glyphs(void)
1363 vana 510
{
4337 svoboda 511
    unsigned int glyph;
512
 
513
    for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
514
        unsigned int y;
515
 
516
        for (y = 0; y < FONT_SCANLINES; y++) {
517
            unsigned int x;
518
 
519
            for (x = 0; x < FONT_WIDTH; x++) {
4348 svoboda 520
                screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
521
                    (fb_font[glyph][y] & (1 << (7 - x))) ? true : false);
4337 svoboda 522
 
4348 svoboda 523
                screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
524
                    (fb_font[glyph][y] & (1 << (7 - x))) ? false : true);
4337 svoboda 525
            }
1509 palkovsky 526
        }
527
    }
1363 vana 528
}
529
 
1485 palkovsky 530
/** Create new viewport
1363 vana 531
 *
4337 svoboda 532
 * @param x      Origin of the viewport (x).
533
 * @param y      Origin of the viewport (y).
534
 * @param width  Width of the viewport.
535
 * @param height Height of the viewport.
536
 *
537
 * @return New viewport number.
538
 *
1363 vana 539
 */
4337 svoboda 540
static int vport_create(unsigned int x, unsigned int y,
541
    unsigned int width, unsigned int height)
1363 vana 542
{
4337 svoboda 543
    unsigned int i;
544
 
2070 jermar 545
    for (i = 0; i < MAX_VIEWPORTS; i++) {
1485 palkovsky 546
        if (!viewports[i].initialized)
1363 vana 547
            break;
548
    }
4348 svoboda 549
 
1485 palkovsky 550
    if (i == MAX_VIEWPORTS)
551
        return ELIMIT;
4337 svoboda 552
 
553
    unsigned int cols = width / FONT_WIDTH;
554
    unsigned int rows = height / FONT_SCANLINES;
4338 svoboda 555
    unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
556
    unsigned int word_size = sizeof(unsigned long);
4337 svoboda 557
 
4338 svoboda 558
    bb_cell_t *backbuf = (bb_cell_t *) malloc(bbsize);
4337 svoboda 559
    if (!backbuf)
560
        return ENOMEM;
561
 
562
    uint8_t *bgpixel = (uint8_t *) malloc(screen.pixelbytes);
563
    if (!bgpixel) {
564
        free(backbuf);
565
        return ENOMEM;
566
    }
4348 svoboda 567
 
4338 svoboda 568
    backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
4337 svoboda 569
    memset(bgpixel, 0, screen.pixelbytes);
570
 
1485 palkovsky 571
    viewports[i].x = x;
572
    viewports[i].y = y;
573
    viewports[i].width = width;
574
    viewports[i].height = height;
1363 vana 575
 
4337 svoboda 576
    viewports[i].cols = cols;
577
    viewports[i].rows = rows;
578
 
4338 svoboda 579
    viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
580
    viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
1363 vana 581
 
4337 svoboda 582
    viewports[i].bgpixel = bgpixel;
4348 svoboda 583
 
4338 svoboda 584
    /*
4348 svoboda 585
     * Conditions necessary to select aligned version:
586
     *  - word size is divisible by pixelbytes
587
     *  - cell scanline size is divisible by word size
588
     *  - cell scanlines are word-aligned
4338 svoboda 589
     *
590
     */
4348 svoboda 591
    if (((word_size % screen.pixelbytes) == 0)
592
        && ((FONT_WIDTH * screen.pixelbytes) % word_size == 0)
593
        && ((x * screen.pixelbytes) % word_size == 0)
594
        && (screen.scanline % word_size == 0)) {
4338 svoboda 595
        viewports[i].dglyph = draw_glyph_aligned;
596
    } else {
597
        viewports[i].dglyph = draw_glyph_fallback;
598
    }
4348 svoboda 599
 
1489 palkovsky 600
    viewports[i].cur_col = 0;
601
    viewports[i].cur_row = 0;
4337 svoboda 602
    viewports[i].cursor_active = false;
603
    viewports[i].cursor_shown = false;
604
 
605
    viewports[i].bbsize = bbsize;
606
    viewports[i].backbuf = backbuf;
607
 
608
    viewports[i].initialized = true;
609
 
4348 svoboda 610
    screen.rgb_conv(viewports[i].bgpixel, viewports[i].attr.bg_color);
4337 svoboda 611
 
1485 palkovsky 612
    return i;
1363 vana 613
}
614
 
4337 svoboda 615
 
1363 vana 616
/** Initialize framebuffer as a chardev output device
617
 *
4337 svoboda 618
 * @param addr   Address of the framebuffer
619
 * @param xres   Screen width in pixels
620
 * @param yres   Screen height in pixels
621
 * @param visual Bits per pixel (8, 16, 24, 32)
622
 * @param scan   Bytes per one scanline
1363 vana 623
 *
624
 */
4337 svoboda 625
static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
626
    unsigned int scan, unsigned int visual)
1363 vana 627
{
1993 decky 628
    switch (visual) {
629
    case VISUAL_INDIRECT_8:
4691 svoboda 630
        screen.rgb_conv = bgr_323;
4348 svoboda 631
        screen.mask_conv = mask_323;
1886 jermar 632
        screen.pixelbytes = 1;
633
        break;
4691 svoboda 634
    case VISUAL_RGB_5_5_5_LE:
635
        screen.rgb_conv = rgb_555_le;
4348 svoboda 636
        screen.mask_conv = mask_555;
1886 jermar 637
        screen.pixelbytes = 2;
638
        break;
4691 svoboda 639
    case VISUAL_RGB_5_5_5_BE:
640
        screen.rgb_conv = rgb_555_be;
641
        screen.mask_conv = mask_555;
642
        screen.pixelbytes = 2;
643
        break;
644
    case VISUAL_RGB_5_6_5_LE:
645
        screen.rgb_conv = rgb_565_le;
4348 svoboda 646
        screen.mask_conv = mask_565;
1993 decky 647
        screen.pixelbytes = 2;
1886 jermar 648
        break;
4691 svoboda 649
    case VISUAL_RGB_5_6_5_BE:
650
        screen.rgb_conv = rgb_565_be;
651
        screen.mask_conv = mask_565;
652
        screen.pixelbytes = 2;
653
        break;
1993 decky 654
    case VISUAL_RGB_8_8_8:
4337 svoboda 655
        screen.rgb_conv = rgb_888;
4348 svoboda 656
        screen.mask_conv = mask_888;
1993 decky 657
        screen.pixelbytes = 3;
658
        break;
4342 svoboda 659
    case VISUAL_BGR_8_8_8:
660
        screen.rgb_conv = bgr_888;
4348 svoboda 661
        screen.mask_conv = mask_888;
4342 svoboda 662
        screen.pixelbytes = 3;
663
        break;
1993 decky 664
    case VISUAL_RGB_8_8_8_0:
4691 svoboda 665
        screen.rgb_conv = rgb_8880;
666
        screen.mask_conv = mask_8880;
1886 jermar 667
        screen.pixelbytes = 4;
668
        break;
1993 decky 669
    case VISUAL_RGB_0_8_8_8:
4337 svoboda 670
        screen.rgb_conv = rgb_0888;
4348 svoboda 671
        screen.mask_conv = mask_0888;
1993 decky 672
        screen.pixelbytes = 4;
673
        break;
1994 decky 674
    case VISUAL_BGR_0_8_8_8:
4337 svoboda 675
        screen.rgb_conv = bgr_0888;
4348 svoboda 676
        screen.mask_conv = mask_0888;
1994 decky 677
        screen.pixelbytes = 4;
678
        break;
4691 svoboda 679
    case VISUAL_BGR_8_8_8_0:
680
        screen.rgb_conv = bgr_8880;
681
        screen.mask_conv = mask_8880;
682
        screen.pixelbytes = 4;
683
        break;
1993 decky 684
    default:
685
        return false;
1363 vana 686
    }
4348 svoboda 687
 
4337 svoboda 688
    screen.fb_addr = (unsigned char *) addr;
1485 palkovsky 689
    screen.xres = xres;
690
    screen.yres = yres;
691
    screen.scanline = scan;
1363 vana 692
 
4337 svoboda 693
    screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
694
    screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
695
 
4348 svoboda 696
    size_t glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
697
    uint8_t *glyphs = (uint8_t *) malloc(glyphsize);
698
    if (!glyphs)
699
        return false;
700
 
701
    memset(glyphs, 0, glyphsize);
702
    screen.glyphs = glyphs;
703
 
704
    render_glyphs();
705
 
1485 palkovsky 706
    /* Create first viewport */
4337 svoboda 707
    vport_create(0, 0, xres, yres);
1993 decky 708
 
709
    return true;
1485 palkovsky 710
}
1363 vana 711
 
4337 svoboda 712
 
4338 svoboda 713
/** Draw a glyph, takes advantage of alignment.
4337 svoboda 714
 *
4338 svoboda 715
 * This version can only be used if the following conditions are met:
4337 svoboda 716
 *
4338 svoboda 717
 *   - word size is divisible by pixelbytes
718
 *   - cell scanline size is divisible by word size
719
 *   - cell scanlines are word-aligned
720
 *
721
 * It makes use of the pre-rendered mask to process (possibly) several
722
 * pixels at once (word size / pixelbytes pixels at a time are processed)
723
 * making it very fast. Most notably this version is not applicable at 24 bits
724
 * per pixel.
725
 *
4348 svoboda 726
 * @param x        x coordinate of top-left corner on screen.
727
 * @param y        y coordinate of top-left corner on screen.
728
 * @param cursor   Draw glyph with cursor
729
 * @param glyphs   Pointer to font bitmap.
730
 * @param glyph    Code of the glyph to draw.
731
 * @param fg_color Foreground color.
732
 * @param bg_color Backgroudn color.
733
 *
4337 svoboda 734
 */
4338 svoboda 735
static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
4348 svoboda 736
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
1500 palkovsky 737
{
4348 svoboda 738
    unsigned int i;
739
    unsigned int yd;
740
    unsigned long fg_buf;
741
    unsigned long bg_buf;
4338 svoboda 742
    unsigned long mask;
4348 svoboda 743
 
4338 svoboda 744
    /*
745
     * Prepare a pair of words, one filled with foreground-color
746
     * pattern and the other filled with background-color pattern.
747
     */
748
    for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
4348 svoboda 749
        screen.rgb_conv(&((uint8_t *) &fg_buf)[i * screen.pixelbytes],
4338 svoboda 750
            fg_color);
4348 svoboda 751
        screen.rgb_conv(&((uint8_t *) &bg_buf)[i * screen.pixelbytes],
4338 svoboda 752
            bg_color);
753
    }
4348 svoboda 754
 
4338 svoboda 755
    /* Pointer to the current position in the mask. */
4348 svoboda 756
    unsigned long *maskp = (unsigned long *) &glyphs[GLYPH_POS(glyph, 0, cursor)];
757
 
4338 svoboda 758
    /* Pointer to the current position on the screen. */
4348 svoboda 759
    unsigned long *dp = (unsigned long *) &screen.fb_addr[FB_POS(x, y)];
760
 
4338 svoboda 761
    /* Width of the character cell in words. */
4348 svoboda 762
    unsigned int ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
763
 
4338 svoboda 764
    /* Offset to add when moving to another screen scanline. */
4348 svoboda 765
    unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
766
 
4338 svoboda 767
    for (yd = 0; yd < FONT_SCANLINES; yd++) {
768
        /*
769
         * Now process the cell scanline, combining foreground
770
         * and background color patters using the pre-rendered mask.
771
         */
772
        for (i = 0; i < ww; i++) {
773
            mask = *maskp++;
774
            *dp++ = (fg_buf & mask) | (bg_buf & ~mask);
775
        }
4348 svoboda 776
 
4338 svoboda 777
        /* Move to the beginning of the next scanline of the cell. */
778
        dp = (unsigned long *) ((uint8_t *) dp + d_add);
779
    }
4337 svoboda 780
}
781
 
4338 svoboda 782
/** Draw a glyph, fallback version.
783
 *
784
 * This version does not make use of the pre-rendered mask, it uses
785
 * the font bitmap directly. It works always, but it is slower.
786
 *
4348 svoboda 787
 * @param x        x coordinate of top-left corner on screen.
788
 * @param y        y coordinate of top-left corner on screen.
789
 * @param cursor   Draw glyph with cursor
790
 * @param glyphs   Pointer to font bitmap.
791
 * @param glyph    Code of the glyph to draw.
792
 * @param fg_color Foreground color.
793
 * @param bg_color Backgroudn color.
794
 *
4338 svoboda 795
 */
796
void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
4348 svoboda 797
    uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
4338 svoboda 798
{
4348 svoboda 799
    unsigned int i;
800
    unsigned int j;
801
    unsigned int yd;
802
    uint8_t fg_buf[4];
803
    uint8_t bg_buf[4];
804
    uint8_t *sp;
4338 svoboda 805
    uint8_t b;
4348 svoboda 806
 
4338 svoboda 807
    /* Pre-render 1x the foreground and background color pixels. */
808
    if (cursor) {
809
        screen.rgb_conv(fg_buf, bg_color);
810
        screen.rgb_conv(bg_buf, fg_color);
811
    } else {
812
        screen.rgb_conv(fg_buf, fg_color);
813
        screen.rgb_conv(bg_buf, bg_color);
814
    }
4348 svoboda 815
 
4338 svoboda 816
    /* Pointer to the current position on the screen. */
4348 svoboda 817
    uint8_t *dp = (uint8_t *) &screen.fb_addr[FB_POS(x, y)];
818
 
4338 svoboda 819
    /* Offset to add when moving to another screen scanline. */
4348 svoboda 820
    unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
821
 
4338 svoboda 822
    for (yd = 0; yd < FONT_SCANLINES; yd++) {
823
        /* Byte containing bits of the glyph scanline. */
4348 svoboda 824
        b = fb_font[glyph][yd];
825
 
4338 svoboda 826
        for (i = 0; i < FONT_WIDTH; i++) {
827
            /* Choose color based on the current bit. */
828
            sp = (b & 0x80) ? fg_buf : bg_buf;
4348 svoboda 829
 
4338 svoboda 830
            /* Copy the pixel. */
831
            for (j = 0; j < screen.pixelbytes; j++) {
832
                *dp++ = *sp++;
833
            }
4348 svoboda 834
 
4338 svoboda 835
            /* Move to the next bit. */
836
            b = b << 1;
837
        }
838
 
839
        /* Move to the beginning of the next scanline of the cell. */
840
        dp += d_add;
841
    }
842
}
843
 
4348 svoboda 844
/** Draw glyph at specified position in viewport.
4337 svoboda 845
 *
846
 * @param vport  Viewport identification
847
 * @param cursor Draw glyph with cursor
848
 * @param col    Screen position relative to viewport
849
 * @param row    Screen position relative to viewport
850
 *
851
 */
852
static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
853
    unsigned int row)
854
{
855
    unsigned int x = vport->x + COL2X(col);
856
    unsigned int y = vport->y + ROW2Y(row);
857
 
4348 svoboda 858
    uint32_t glyph = vport->backbuf[BB_POS(vport, col, row)].glyph;
859
    uint32_t fg_color = vport->backbuf[BB_POS(vport, col, row)].fg_color;
860
    uint32_t bg_color = vport->backbuf[BB_POS(vport, col, row)].bg_color;
861
 
862
    (*vport->dglyph)(x, y, cursor, screen.glyphs, glyph,
4338 svoboda 863
        fg_color, bg_color);
4337 svoboda 864
}
865
 
866
/** Hide cursor if it is shown
867
 *
868
 */
869
static void cursor_hide(viewport_t *vport)
870
{
871
    if ((vport->cursor_active) && (vport->cursor_shown)) {
872
        draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
873
        vport->cursor_shown = false;
1500 palkovsky 874
    }
875
}
876
 
4337 svoboda 877
 
878
/** Show cursor if cursor showing is enabled
879
 *
880
 */
881
static void cursor_show(viewport_t *vport)
1500 palkovsky 882
{
883
    /* Do not check for cursor_shown */
884
    if (vport->cursor_active) {
4337 svoboda 885
        draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
886
        vport->cursor_shown = true;
1500 palkovsky 887
    }
888
}
889
 
4337 svoboda 890
 
891
/** Invert cursor, if it is enabled
892
 *
893
 */
894
static void cursor_blink(viewport_t *vport)
1500 palkovsky 895
{
896
    if (vport->cursor_shown)
1673 palkovsky 897
        cursor_hide(vport);
1500 palkovsky 898
    else
4337 svoboda 899
        cursor_show(vport);
1500 palkovsky 900
}
901
 
4337 svoboda 902
 
903
/** Draw character at given position relative to viewport
904
 *
905
 * @param vport  Viewport identification
906
 * @param c      Character to draw
907
 * @param col    Screen position relative to viewport
908
 * @param row    Screen position relative to viewport
909
 *
1498 palkovsky 910
 */
4348 svoboda 911
static void draw_char(viewport_t *vport, wchar_t c, unsigned int col, unsigned int row)
1486 palkovsky 912
{
4338 svoboda 913
    bb_cell_t *bbp;
4348 svoboda 914
 
4337 svoboda 915
    /* Do not hide cursor if we are going to overwrite it */
916
    if ((vport->cursor_active) && (vport->cursor_shown) &&
917
        ((vport->cur_col != col) || (vport->cur_row != row)))
918
        cursor_hide(vport);
4348 svoboda 919
 
4338 svoboda 920
    bbp = &vport->backbuf[BB_POS(vport, col, row)];
4348 svoboda 921
    bbp->glyph = fb_font_glyph(c);
4338 svoboda 922
    bbp->fg_color = vport->attr.fg_color;
923
    bbp->bg_color = vport->attr.bg_color;
4348 svoboda 924
 
4337 svoboda 925
    draw_vp_glyph(vport, false, col, row);
926
 
1489 palkovsky 927
    vport->cur_col = col;
928
    vport->cur_row = row;
4337 svoboda 929
 
1489 palkovsky 930
    vport->cur_col++;
2025 jermar 931
    if (vport->cur_col >= vport->cols) {
1489 palkovsky 932
        vport->cur_col = 0;
933
        vport->cur_row++;
934
        if (vport->cur_row >= vport->rows)
935
            vport->cur_row--;
1486 palkovsky 936
    }
4337 svoboda 937
 
938
    cursor_show(vport);
1486 palkovsky 939
}
940
 
4347 svoboda 941
/** Draw text data to viewport.
1552 palkovsky 942
 *
1709 jermar 943
 * @param vport Viewport id
4347 svoboda 944
 * @param data  Text data.
4348 svoboda 945
 * @param x     Leftmost column of the area.
946
 * @param y     Topmost row of the area.
947
 * @param w     Number of rows.
948
 * @param h     Number of columns.
949
 *
1552 palkovsky 950
 */
4347 svoboda 951
static void draw_text_data(viewport_t *vport, keyfield_t *data, unsigned int x,
952
    unsigned int y, unsigned int w, unsigned int h)
1505 palkovsky 953
{
4348 svoboda 954
    unsigned int i;
955
    unsigned int j;
4338 svoboda 956
    bb_cell_t *bbp;
957
    attrs_t *a;
958
    attr_rgb_t rgb;
4348 svoboda 959
 
4347 svoboda 960
    for (j = 0; j < h; j++) {
961
        for (i = 0; i < w; i++) {
962
            unsigned int col = x + i;
963
            unsigned int row = y + j;
4348 svoboda 964
 
4347 svoboda 965
            bbp = &vport->backbuf[BB_POS(vport, col, row)];
4348 svoboda 966
 
4347 svoboda 967
            a = &data[j * w + i].attrs;
968
            rgb_from_attr(&rgb, a);
4348 svoboda 969
 
970
            bbp->glyph = fb_font_glyph(data[j * w + i].character);
4347 svoboda 971
            bbp->fg_color = rgb.fg_color;
972
            bbp->bg_color = rgb.bg_color;
4348 svoboda 973
 
4347 svoboda 974
            draw_vp_glyph(vport, false, col, row);
975
        }
1505 palkovsky 976
    }
4337 svoboda 977
    cursor_show(vport);
1505 palkovsky 978
}
979
 
4337 svoboda 980
 
981
static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
1555 palkovsky 982
{
4337 svoboda 983
    int pm = *((int *) data);
984
    pixmap_t *pmap = &pixmaps[pm];
985
    unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
1555 palkovsky 986
 
4337 svoboda 987
    screen.rgb_conv(&pmap->data[pos], color);
988
}
989
 
990
 
991
static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
992
{
993
    viewport_t *vport = (viewport_t *) data;
994
    unsigned int dx = vport->x + x;
995
    unsigned int dy = vport->y + y;
996
 
997
    screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
998
}
999
 
1000
 
1001
/** Return first free pixmap
1002
 *
1003
 */
1004
static int find_free_pixmap(void)
1005
{
1006
    unsigned int i;
1007
 
1008
    for (i = 0; i < MAX_PIXMAPS; i++)
1555 palkovsky 1009
        if (!pixmaps[i].data)
1010
            return i;
4337 svoboda 1011
 
1555 palkovsky 1012
    return -1;
1013
}
1014
 
1015
 
4337 svoboda 1016
/** Create a new pixmap and return appropriate ID
1017
 *
1018
 */
1019
static int shm2pixmap(unsigned char *shm, size_t size)
1555 palkovsky 1020
{
1021
    int pm;
1022
    pixmap_t *pmap;
4337 svoboda 1023
 
1555 palkovsky 1024
    pm = find_free_pixmap();
1025
    if (pm == -1)
1026
        return ELIMIT;
4337 svoboda 1027
 
1555 palkovsky 1028
    pmap = &pixmaps[pm];
1029
 
1030
    if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
1031
        return EINVAL;
1032
 
1033
    pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
1034
    if (!pmap->data)
1035
        return ENOMEM;
4337 svoboda 1036
 
1037
    ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
1038
 
1555 palkovsky 1039
    return pm;
1040
}
1041
 
4337 svoboda 1042
 
1552 palkovsky 1043
/** Handle shared memory communication calls
1044
 *
1045
 * Protocol for drawing pixmaps:
1046
 * - FB_PREPARE_SHM(client shm identification)
2025 jermar 1047
 * - IPC_M_AS_AREA_SEND
4337 svoboda 1048
 * - FB_DRAW_PPM(startx, starty)
1552 palkovsky 1049
 * - FB_DROP_SHM
1050
 *
1051
 * Protocol for text drawing
2025 jermar 1052
 * - IPC_M_AS_AREA_SEND
1552 palkovsky 1053
 * - FB_DRAW_TEXT_DATA
1054
 *
1055
 * @param callid Callid of the current call
4337 svoboda 1056
 * @param call   Current call data
1057
 * @param vp     Active viewport
1552 palkovsky 1058
 *
4337 svoboda 1059
 * @return false if the call was not handled byt this function, true otherwise
1060
 *
4691 svoboda 1061
 * Note: this function is not thread-safe, you would have
1062
 * to redefine static variables with fibril_local.
4337 svoboda 1063
 *
1552 palkovsky 1064
 */
4337 svoboda 1065
static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1547 palkovsky 1066
{
1067
    static keyfield_t *interbuffer = NULL;
1068
    static size_t intersize = 0;
4337 svoboda 1069
 
1720 palkovsky 1070
    static unsigned char *shm = NULL;
1555 palkovsky 1071
    static ipcarg_t shm_id = 0;
1072
    static size_t shm_size;
4337 svoboda 1073
 
1074
    bool handled = true;
1075
    int retval = EOK;
1547 palkovsky 1076
    viewport_t *vport = &viewports[vp];
4337 svoboda 1077
    unsigned int x;
1078
    unsigned int y;
4347 svoboda 1079
    unsigned int w;
1080
    unsigned int h;
4337 svoboda 1081
 
1547 palkovsky 1082
    switch (IPC_GET_METHOD(*call)) {
2677 jermar 1083
    case IPC_M_SHARE_OUT:
1547 palkovsky 1084
        /* We accept one area for data interchange */
1555 palkovsky 1085
        if (IPC_GET_ARG1(*call) == shm_id) {
2141 jermar 1086
            void *dest = as_get_mappable_page(IPC_GET_ARG2(*call));
1555 palkovsky 1087
            shm_size = IPC_GET_ARG2(*call);
4691 svoboda 1088
            if (ipc_answer_1(callid, EOK, (sysarg_t) dest)) {
1555 palkovsky 1089
                shm_id = 0;
4691 svoboda 1090
                return false;
1091
            }
1092
            shm = dest;
4337 svoboda 1093
 
1555 palkovsky 1094
            if (shm[0] != 'P')
4337 svoboda 1095
                return false;
1096
 
1097
            return true;
1547 palkovsky 1098
        } else {
1099
            intersize = IPC_GET_ARG2(*call);
2015 jermar 1100
            receive_comm_area(callid, call, (void *) &interbuffer);
1547 palkovsky 1101
        }
4337 svoboda 1102
        return true;
1547 palkovsky 1103
    case FB_PREPARE_SHM:
1555 palkovsky 1104
        if (shm_id)
1547 palkovsky 1105
            retval = EBUSY;
1106
        else
1555 palkovsky 1107
            shm_id = IPC_GET_ARG1(*call);
1547 palkovsky 1108
        break;
1109
 
1110
    case FB_DROP_SHM:
1555 palkovsky 1111
        if (shm) {
1112
            as_area_destroy(shm);
1113
            shm = NULL;
1547 palkovsky 1114
        }
1555 palkovsky 1115
        shm_id = 0;
1547 palkovsky 1116
        break;
4337 svoboda 1117
 
1555 palkovsky 1118
    case FB_SHM2PIXMAP:
1119
        if (!shm) {
1120
            retval = EINVAL;
1121
            break;
1122
        }
1123
        retval = shm2pixmap(shm, shm_size);
1124
        break;
1547 palkovsky 1125
    case FB_DRAW_PPM:
1555 palkovsky 1126
        if (!shm) {
1547 palkovsky 1127
            retval = EINVAL;
1128
            break;
1129
        }
1130
        x = IPC_GET_ARG1(*call);
1131
        y = IPC_GET_ARG2(*call);
4337 svoboda 1132
 
1133
        if ((x > vport->width) || (y > vport->height)) {
1547 palkovsky 1134
            retval = EINVAL;
1135
            break;
1136
        }
1137
 
2025 jermar 1138
        ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
4337 svoboda 1139
            IPC_GET_ARG2(*call), vport->width - x, vport->height - y, putpixel, (void *) vport);
1547 palkovsky 1140
        break;
1141
    case FB_DRAW_TEXT_DATA:
4347 svoboda 1142
        x = IPC_GET_ARG1(*call);
1143
        y = IPC_GET_ARG2(*call);
1144
        w = IPC_GET_ARG3(*call);
1145
        h = IPC_GET_ARG4(*call);
1547 palkovsky 1146
        if (!interbuffer) {
1147
            retval = EINVAL;
1148
            break;
1149
        }
4347 svoboda 1150
        if (x + w > vport->cols || y + h > vport->rows) {
1547 palkovsky 1151
            retval = EINVAL;
1152
            break;
1153
        }
4347 svoboda 1154
        if (intersize < w * h * sizeof(*interbuffer)) {
1155
            retval = EINVAL;
1156
            break;
1157
        }
1158
        draw_text_data(vport, interbuffer, x, y, w, h);
1547 palkovsky 1159
        break;
1160
    default:
4337 svoboda 1161
        handled = false;
1547 palkovsky 1162
    }
1163
 
1164
    if (handled)
2619 jermar 1165
        ipc_answer_0(callid, retval);
1547 palkovsky 1166
    return handled;
1167
}
1168
 
4337 svoboda 1169
 
1170
static void copy_vp_to_pixmap(viewport_t *vport, pixmap_t *pmap)
1552 palkovsky 1171
{
4337 svoboda 1172
    unsigned int width = vport->width;
1173
    unsigned int height = vport->height;
1174
 
1711 palkovsky 1175
    if (width + vport->x > screen.xres)
1176
        width = screen.xres - vport->x;
2301 decky 1177
    if (height + vport->y > screen.yres)
1711 palkovsky 1178
        height = screen.yres - vport->y;
2301 decky 1179
 
4337 svoboda 1180
    unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1181
    unsigned int realheight = pmap->height <= height ? pmap->height : height;
2301 decky 1182
 
4337 svoboda 1183
    unsigned int srcrowsize = vport->width * screen.pixelbytes;
1184
    unsigned int realrowsize = realwidth * screen.pixelbytes;
1185
 
1186
    unsigned int y;
2301 decky 1187
    for (y = 0; y < realheight; y++) {
4337 svoboda 1188
        unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1189
        memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1711 palkovsky 1190
    }
1191
}
1192
 
4337 svoboda 1193
 
1194
/** Save viewport to pixmap
1195
 *
1196
 */
1197
static int save_vp_to_pixmap(viewport_t *vport)
1711 palkovsky 1198
{
1199
    int pm;
1200
    pixmap_t *pmap;
4337 svoboda 1201
 
1552 palkovsky 1202
    pm = find_free_pixmap();
1203
    if (pm == -1)
1204
        return ELIMIT;
1205
 
1206
    pmap = &pixmaps[pm];
1207
    pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
1208
    if (!pmap->data)
1209
        return ENOMEM;
4337 svoboda 1210
 
1552 palkovsky 1211
    pmap->width = vport->width;
1212
    pmap->height = vport->height;
4337 svoboda 1213
 
1711 palkovsky 1214
    copy_vp_to_pixmap(vport, pmap);
1552 palkovsky 1215
 
1216
    return pm;
1217
}
1218
 
4337 svoboda 1219
 
1552 palkovsky 1220
/** Draw pixmap on screen
1221
 *
1222
 * @param vp Viewport to draw on
1223
 * @param pm Pixmap identifier
4337 svoboda 1224
 *
1552 palkovsky 1225
 */
1226
static int draw_pixmap(int vp, int pm)
1227
{
1228
    pixmap_t *pmap = &pixmaps[pm];
1229
    viewport_t *vport = &viewports[vp];
4337 svoboda 1230
 
1231
    unsigned int width = vport->width;
1232
    unsigned int height = vport->height;
1233
 
1711 palkovsky 1234
    if (width + vport->x > screen.xres)
1235
        width = screen.xres - vport->x;
1236
    if (height + vport->y > screen.yres)
1237
        height = screen.yres - vport->y;
4337 svoboda 1238
 
1552 palkovsky 1239
    if (!pmap->data)
1240
        return EINVAL;
4337 svoboda 1241
 
1242
    unsigned int realwidth = pmap->width <= width ? pmap->width : width;
1243
    unsigned int realheight = pmap->height <= height ? pmap->height : height;
1244
 
1245
    unsigned int srcrowsize = vport->width * screen.pixelbytes;
1246
    unsigned int realrowsize = realwidth * screen.pixelbytes;
1247
 
1248
    unsigned int y;
2070 jermar 1249
    for (y = 0; y < realheight; y++) {
4337 svoboda 1250
        unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
1251
        memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1552 palkovsky 1252
    }
4337 svoboda 1253
 
1254
    return EOK;
1552 palkovsky 1255
}
1256
 
4337 svoboda 1257
 
1258
/** Tick animation one step forward
1259
 *
1260
 */
1261
static void anims_tick(void)
1646 palkovsky 1262
{
4337 svoboda 1263
    unsigned int i;
1646 palkovsky 1264
    static int counts = 0;
1265
 
1266
    /* Limit redrawing */
2025 jermar 1267
    counts = (counts + 1) % 8;
1646 palkovsky 1268
    if (counts)
1269
        return;
4348 svoboda 1270
 
2070 jermar 1271
    for (i = 0; i < MAX_ANIMATIONS; i++) {
4337 svoboda 1272
        if ((!animations[i].animlen) || (!animations[i].initialized) ||
1273
            (!animations[i].enabled))
1646 palkovsky 1274
            continue;
4337 svoboda 1275
 
1276
        draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
1277
        animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1646 palkovsky 1278
    }
1279
}
1280
 
1711 palkovsky 1281
 
4337 svoboda 1282
static unsigned int pointer_x;
1283
static unsigned int pointer_y;
1284
static bool pointer_shown, pointer_enabled;
1711 palkovsky 1285
static int pointer_vport = -1;
1286
static int pointer_pixmap = -1;
1287
 
4337 svoboda 1288
 
1289
static void mouse_show(void)
1711 palkovsky 1290
{
2070 jermar 1291
    int i, j;
1711 palkovsky 1292
    int visibility;
1293
    int color;
1294
    int bytepos;
4337 svoboda 1295
 
1296
    if ((pointer_shown) || (!pointer_enabled))
1723 palkovsky 1297
        return;
4337 svoboda 1298
 
1299
    /* Save image under the pointer. */
1711 palkovsky 1300
    if (pointer_vport == -1) {
4337 svoboda 1301
        pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1711 palkovsky 1302
        if (pointer_vport < 0)
1303
            return;
1304
    } else {
1305
        viewports[pointer_vport].x = pointer_x;
1306
        viewports[pointer_vport].y = pointer_y;
1307
    }
4337 svoboda 1308
 
1711 palkovsky 1309
    if (pointer_pixmap == -1)
1310
        pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
1311
    else
4337 svoboda 1312
        copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
1313
 
1314
    /* Draw mouse pointer. */
2025 jermar 1315
    for (i = 0; i < pointer_height; i++)
1316
        for (j = 0; j < pointer_width; j++) {
1317
            bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
2070 jermar 1318
            visibility = pointer_mask_bits[bytepos] &
2619 jermar 1319
                (1 << (j % 8));
1711 palkovsky 1320
            if (visibility) {
2619 jermar 1321
                color = pointer_bits[bytepos] &
1322
                    (1 << (j % 8)) ? 0 : 0xffffff;
2025 jermar 1323
                if (pointer_x + j < screen.xres && pointer_y +
2619 jermar 1324
                    i < screen.yres)
2025 jermar 1325
                    putpixel(&viewports[0], pointer_x + j,
2619 jermar 1326
                        pointer_y + i, color);
1711 palkovsky 1327
            }
1328
        }
1329
    pointer_shown = 1;
1330
}
1331
 
4337 svoboda 1332
 
1333
static void mouse_hide(void)
1711 palkovsky 1334
{
4337 svoboda 1335
    /* Restore image under the pointer. */
1711 palkovsky 1336
    if (pointer_shown) {
1337
        draw_pixmap(pointer_vport, pointer_pixmap);
1338
        pointer_shown = 0;
1339
    }
1340
}
1341
 
4337 svoboda 1342
 
1343
static void mouse_move(unsigned int x, unsigned int y)
1711 palkovsky 1344
{
1345
    mouse_hide();
1346
    pointer_x = x;
1347
    pointer_y = y;
1348
    mouse_show();
1349
}
1350
 
4337 svoboda 1351
 
1352
static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1646 palkovsky 1353
{
4337 svoboda 1354
    bool handled = true;
1355
    int retval = EOK;
1356
    int i, nvp;
1646 palkovsky 1357
    int newval;
4337 svoboda 1358
 
1646 palkovsky 1359
    switch (IPC_GET_METHOD(*call)) {
1360
    case FB_ANIM_CREATE:
1361
        nvp = IPC_GET_ARG1(*call);
1362
        if (nvp == -1)
1363
            nvp = vp;
2025 jermar 1364
        if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1365
            !viewports[nvp].initialized) {
1646 palkovsky 1366
            retval = EINVAL;
1367
            break;
1368
        }
2025 jermar 1369
        for (i = 0; i < MAX_ANIMATIONS; i++) {
1370
            if (!animations[i].initialized)
1646 palkovsky 1371
                break;
1372
        }
1373
        if (i == MAX_ANIMATIONS) {
1374
            retval = ELIMIT;
1375
            break;
1376
        }
1377
        animations[i].initialized = 1;
1378
        animations[i].animlen = 0;
1379
        animations[i].pos = 0;
1380
        animations[i].enabled = 0;
1381
        animations[i].vp = nvp;
1382
        retval = i;
1383
        break;
1384
    case FB_ANIM_DROP:
1385
        i = IPC_GET_ARG1(*call);
1720 palkovsky 1386
        if (i >= MAX_ANIMATIONS || i < 0) {
1646 palkovsky 1387
            retval = EINVAL;
1388
            break;
1389
        }
1390
        animations[i].initialized = 0;
1391
        break;
1392
    case FB_ANIM_ADDPIXMAP:
1393
        i = IPC_GET_ARG1(*call);
2025 jermar 1394
        if (i >= MAX_ANIMATIONS || i < 0 ||
1395
            !animations[i].initialized) {
1646 palkovsky 1396
            retval = EINVAL;
1397
            break;
1398
        }
1399
        if (animations[i].animlen == MAX_ANIM_LEN) {
1400
            retval = ELIMIT;
1401
            break;
1402
        }
1403
        newval = IPC_GET_ARG2(*call);
2025 jermar 1404
        if (newval < 0 || newval > MAX_PIXMAPS ||
1405
            !pixmaps[newval].data) {
1646 palkovsky 1406
            retval = EINVAL;
1407
            break;
1408
        }
1409
        animations[i].pixmaps[animations[i].animlen++] = newval;
1410
        break;
1411
    case FB_ANIM_CHGVP:
1412
        i = IPC_GET_ARG1(*call);
1413
        if (i >= MAX_ANIMATIONS || i < 0) {
1414
            retval = EINVAL;
1415
            break;
1416
        }
1417
        nvp = IPC_GET_ARG2(*call);
1418
        if (nvp == -1)
1419
            nvp = vp;
2025 jermar 1420
        if (nvp >= MAX_VIEWPORTS || nvp < 0 ||
1421
            !viewports[nvp].initialized) {
1646 palkovsky 1422
            retval = EINVAL;
1423
            break;
1424
        }
1425
        animations[i].vp = nvp;
1426
        break;
1427
    case FB_ANIM_START:
1428
    case FB_ANIM_STOP:
1429
        i = IPC_GET_ARG1(*call);
1430
        if (i >= MAX_ANIMATIONS || i < 0) {
1431
            retval = EINVAL;
1432
            break;
1433
        }
1434
        newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
1435
        if (newval ^ animations[i].enabled) {
1436
            animations[i].enabled = newval;
1437
            anims_enabled += newval ? 1 : -1;
1438
        }
1439
        break;
1440
    default:
1441
        handled = 0;
1442
    }
1443
    if (handled)
2619 jermar 1444
        ipc_answer_0(callid, retval);
1646 palkovsky 1445
    return handled;
1446
}
1447
 
4337 svoboda 1448
 
1449
/** Handler for messages concerning pixmap handling
1450
 *
1451
 */
1452
static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1552 palkovsky 1453
{
4337 svoboda 1454
    bool handled = true;
1455
    int retval = EOK;
1456
    int i, nvp;
1457
 
1552 palkovsky 1458
    switch (IPC_GET_METHOD(*call)) {
1459
    case FB_VP_DRAW_PIXMAP:
1460
        nvp = IPC_GET_ARG1(*call);
1461
        if (nvp == -1)
1462
            nvp = vp;
2025 jermar 1463
        if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1464
            !viewports[nvp].initialized) {
1552 palkovsky 1465
            retval = EINVAL;
1466
            break;
1467
        }
1468
        i = IPC_GET_ARG2(*call);
1469
        retval = draw_pixmap(nvp, i);
1470
        break;
1471
    case FB_VP2PIXMAP:
1472
        nvp = IPC_GET_ARG1(*call);
1473
        if (nvp == -1)
1474
            nvp = vp;
2025 jermar 1475
        if (nvp < 0 || nvp >= MAX_VIEWPORTS ||
1476
            !viewports[nvp].initialized)
1552 palkovsky 1477
            retval = EINVAL;
1478
        else
1711 palkovsky 1479
            retval = save_vp_to_pixmap(&viewports[nvp]);
1552 palkovsky 1480
        break;
1481
    case FB_DROP_PIXMAP:
1482
        i = IPC_GET_ARG1(*call);
1483
        if (i >= MAX_PIXMAPS) {
1484
            retval = EINVAL;
1485
            break;
1486
        }
1487
        if (pixmaps[i].data) {
1488
            free(pixmaps[i].data);
1489
            pixmaps[i].data = NULL;
1490
        }
1491
        break;
1492
    default:
1493
        handled = 0;
1494
    }
4337 svoboda 1495
 
1552 palkovsky 1496
    if (handled)
2619 jermar 1497
        ipc_answer_0(callid, retval);
1552 palkovsky 1498
    return handled;
1499
 
1500
}
1501
 
4338 svoboda 1502
static int rgb_from_style(attr_rgb_t *rgb, int style)
1503
{
1504
    switch (style) {
1505
    case STYLE_NORMAL:
1506
        rgb->fg_color = color_table[COLOR_BLACK];
1507
        rgb->bg_color = color_table[COLOR_WHITE];
1508
        break;
1509
    case STYLE_EMPHASIS:
1510
        rgb->fg_color = color_table[COLOR_RED];
1511
        rgb->bg_color = color_table[COLOR_WHITE];
1512
        break;
1513
    default:
1514
        return EINVAL;
1515
    }
1516
 
1517
    return EOK;
1518
}
1519
 
1520
static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
1521
    ipcarg_t bg_color, ipcarg_t flags)
1522
{
1523
    fg_color = (fg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1524
    bg_color = (bg_color & 7) | ((flags & CATTR_BRIGHT) ? 8 : 0);
1525
 
1526
    rgb->fg_color = color_table[fg_color];
1527
    rgb->bg_color = color_table[bg_color];
1528
 
1529
    return EOK;
1530
}
1531
 
4339 svoboda 1532
static int rgb_from_attr(attr_rgb_t *rgb, const attrs_t *a)
1533
{
1534
    int rc;
1535
 
1536
    switch (a->t) {
1537
    case at_style:
1538
        rc = rgb_from_style(rgb, a->a.s.style);
1539
        break;
1540
    case at_idx:
1541
        rc = rgb_from_idx(rgb, a->a.i.fg_color,
1542
            a->a.i.bg_color, a->a.i.flags);
1543
        break;
1544
    case at_rgb:
1545
        *rgb = a->a.r;
1546
        rc = EOK;
1547
        break;
1548
    }
1549
 
1550
    return rc;
1551
}
1552
 
4338 svoboda 1553
static int fb_set_style(viewport_t *vport, ipcarg_t style)
1554
{
1555
    return rgb_from_style(&vport->attr, (int) style);
1556
}
1557
 
1558
static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
1559
    ipcarg_t bg_color, ipcarg_t flags)
1560
{
1561
    return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
1562
}
1563
 
1498 palkovsky 1564
/** Function for handling connections to FB
1565
 *
1566
 */
4337 svoboda 1567
static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363 vana 1568
{
4337 svoboda 1569
    unsigned int vp = 0;
1570
    viewport_t *vport = &viewports[vp];
1571
 
1485 palkovsky 1572
    if (client_connected) {
2619 jermar 1573
        ipc_answer_0(iid, ELIMIT);
1485 palkovsky 1574
        return;
1575
    }
4337 svoboda 1576
 
1577
    /* Accept connection */
1578
    client_connected = true;
1579
    ipc_answer_0(iid, EOK);
1580
 
1581
    while (true) {
1582
        ipc_callid_t callid;
1583
        ipc_call_t call;
1584
        int retval;
1585
        unsigned int i;
1586
        int scroll;
4348 svoboda 1587
        wchar_t ch;
4691 svoboda 1588
        unsigned int col, row;
4337 svoboda 1589
 
1590
        if ((vport->cursor_active) || (anims_enabled))
2070 jermar 1591
            callid = async_get_call_timeout(&call, 250000);
1640 palkovsky 1592
        else
1593
            callid = async_get_call(&call);
4337 svoboda 1594
 
1713 palkovsky 1595
        mouse_hide();
1500 palkovsky 1596
        if (!callid) {
1673 palkovsky 1597
            cursor_blink(vport);
1646 palkovsky 1598
            anims_tick();
1723 palkovsky 1599
            mouse_show();
1500 palkovsky 1600
            continue;
1601
        }
4337 svoboda 1602
 
1547 palkovsky 1603
        if (shm_handle(callid, &call, vp))
1604
            continue;
4337 svoboda 1605
 
1552 palkovsky 1606
        if (pixmap_handle(callid, &call, vp))
1607
            continue;
4337 svoboda 1608
 
1646 palkovsky 1609
        if (anim_handle(callid, &call, vp))
1610
            continue;
4337 svoboda 1611
 
1612
        switch (IPC_GET_METHOD(call)) {
1485 palkovsky 1613
        case IPC_M_PHONE_HUNGUP:
4337 svoboda 1614
            client_connected = false;
1615
 
1616
            /* Cleanup other viewports */
2025 jermar 1617
            for (i = 1; i < MAX_VIEWPORTS; i++)
4337 svoboda 1618
                vport->initialized = false;
1619
 
1620
            /* Exit thread */
1621
            return;
1622
 
1485 palkovsky 1623
        case FB_PUTCHAR:
4348 svoboda 1624
            ch = IPC_GET_ARG1(call);
4691 svoboda 1625
            col = IPC_GET_ARG2(call);
1626
            row = IPC_GET_ARG3(call);
4337 svoboda 1627
 
1628
            if ((col >= vport->cols) || (row >= vport->rows)) {
1485 palkovsky 1629
                retval = EINVAL;
1630
                break;
1631
            }
2619 jermar 1632
            ipc_answer_0(callid, EOK);
4337 svoboda 1633
 
4348 svoboda 1634
            draw_char(vport, ch, col, row);
4337 svoboda 1635
 
1636
            /* Message already answered */
1637
            continue;
1485 palkovsky 1638
        case FB_CLEAR:
4337 svoboda 1639
            vport_clear(vport);
1640
            cursor_show(vport);
1641
            retval = EOK;
1485 palkovsky 1642
            break;
4337 svoboda 1643
        case FB_CURSOR_GOTO:
4691 svoboda 1644
            col = IPC_GET_ARG1(call);
1645
            row = IPC_GET_ARG2(call);
4337 svoboda 1646
 
1647
            if ((col >= vport->cols) || (row >= vport->rows)) {
1486 palkovsky 1648
                retval = EINVAL;
1649
                break;
1650
            }
4337 svoboda 1651
            retval = EOK;
1652
 
1673 palkovsky 1653
            cursor_hide(vport);
1486 palkovsky 1654
            vport->cur_col = col;
1655
            vport->cur_row = row;
4337 svoboda 1656
            cursor_show(vport);
1657
            break;
1486 palkovsky 1658
        case FB_CURSOR_VISIBILITY:
1673 palkovsky 1659
            cursor_hide(vport);
1500 palkovsky 1660
            vport->cursor_active = IPC_GET_ARG1(call);
4337 svoboda 1661
            cursor_show(vport);
1662
            retval = EOK;
1486 palkovsky 1663
            break;
1485 palkovsky 1664
        case FB_GET_CSIZE:
4691 svoboda 1665
            ipc_answer_2(callid, EOK, vport->cols, vport->rows);
1485 palkovsky 1666
            continue;
4691 svoboda 1667
        case FB_GET_COLOR_CAP:
1668
            ipc_answer_1(callid, EOK, FB_CCAP_RGB);
1669
            continue;
1486 palkovsky 1670
        case FB_SCROLL:
4337 svoboda 1671
            scroll = IPC_GET_ARG1(call);
1672
            if ((scroll > (int) vport->rows) || (scroll < (-(int) vport->rows))) {
1486 palkovsky 1673
                retval = EINVAL;
1674
                break;
1675
            }
1673 palkovsky 1676
            cursor_hide(vport);
4337 svoboda 1677
            vport_scroll(vport, scroll);
1678
            cursor_show(vport);
1679
            retval = EOK;
1486 palkovsky 1680
            break;
1681
        case FB_VIEWPORT_SWITCH:
1682
            i = IPC_GET_ARG1(call);
4337 svoboda 1683
            if (i >= MAX_VIEWPORTS) {
1486 palkovsky 1684
                retval = EINVAL;
1685
                break;
1686
            }
4337 svoboda 1687
            if (!viewports[i].initialized) {
1486 palkovsky 1688
                retval = EADDRNOTAVAIL;
1689
                break;
1690
            }
1673 palkovsky 1691
            cursor_hide(vport);
1486 palkovsky 1692
            vp = i;
1693
            vport = &viewports[vp];
4337 svoboda 1694
            cursor_show(vport);
1695
            retval = EOK;
1486 palkovsky 1696
            break;
1697
        case FB_VIEWPORT_CREATE:
4337 svoboda 1698
            retval = vport_create(IPC_GET_ARG1(call) >> 16,
2619 jermar 1699
                IPC_GET_ARG1(call) & 0xffff,
1700
                IPC_GET_ARG2(call) >> 16,
1701
                IPC_GET_ARG2(call) & 0xffff);
1486 palkovsky 1702
            break;
1703
        case FB_VIEWPORT_DELETE:
1704
            i = IPC_GET_ARG1(call);
4337 svoboda 1705
            if (i >= MAX_VIEWPORTS) {
1486 palkovsky 1706
                retval = EINVAL;
1707
                break;
1708
            }
4337 svoboda 1709
            if (!viewports[i].initialized) {
1486 palkovsky 1710
                retval = EADDRNOTAVAIL;
1711
                break;
1712
            }
4337 svoboda 1713
            viewports[i].initialized = false;
1714
            if (viewports[i].bgpixel)
1715
                free(viewports[i].bgpixel);
1716
            if (viewports[i].backbuf)
1717
                free(viewports[i].backbuf);
1718
            retval = EOK;
1486 palkovsky 1719
            break;
1720
        case FB_SET_STYLE:
4338 svoboda 1721
            retval = fb_set_style(vport, IPC_GET_ARG1(call));
1722
            break;
1723
        case FB_SET_COLOR:
1724
            retval = fb_set_color(vport, IPC_GET_ARG1(call),
1725
                IPC_GET_ARG2(call), IPC_GET_ARG3(call));
1726
            break;
1727
        case FB_SET_RGB_COLOR:
1728
            vport->attr.fg_color = IPC_GET_ARG1(call);
1729
            vport->attr.bg_color = IPC_GET_ARG2(call);
4337 svoboda 1730
            retval = EOK;
1486 palkovsky 1731
            break;
1732
        case FB_GET_RESOLUTION:
2619 jermar 1733
            ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1486 palkovsky 1734
            continue;
1707 palkovsky 1735
        case FB_POINTER_MOVE:
4337 svoboda 1736
            pointer_enabled = true;
1711 palkovsky 1737
            mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
4337 svoboda 1738
            retval = EOK;
1707 palkovsky 1739
            break;
4348 svoboda 1740
        case FB_SCREEN_YIELD:
1741
        case FB_SCREEN_RECLAIM:
1742
            retval = EOK;
1743
            break;
1485 palkovsky 1744
        default:
1745
            retval = ENOENT;
1746
        }
2619 jermar 1747
        ipc_answer_0(callid, retval);
1363 vana 1748
    }
1485 palkovsky 1749
}
1363 vana 1750
 
4337 svoboda 1751
/** Initialization of framebuffer
1752
 *
1753
 */
1754
int fb_init(void)
1485 palkovsky 1755
{
1490 palkovsky 1756
    async_set_client_connection(fb_client_connection);
1485 palkovsky 1757
 
4337 svoboda 1758
    void *fb_ph_addr = (void *) sysinfo_value("fb.address.physical");
1759
    unsigned int fb_offset = sysinfo_value("fb.offset");
1760
    unsigned int fb_width = sysinfo_value("fb.width");
1761
    unsigned int fb_height = sysinfo_value("fb.height");
1762
    unsigned int fb_scanline = sysinfo_value("fb.scanline");
1763
    unsigned int fb_visual = sysinfo_value("fb.visual");
4691 svoboda 1764
 
4337 svoboda 1765
    unsigned int fbsize = fb_scanline * fb_height;
1766
    void *fb_addr = as_get_mappable_page(fbsize);
4691 svoboda 1767
 
4343 svoboda 1768
    if (physmem_map(fb_ph_addr + fb_offset, fb_addr,
1769
        ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE) != 0)
1770
        return -1;
4691 svoboda 1771
 
4337 svoboda 1772
    if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1993 decky 1773
        return 0;
4691 svoboda 1774
 
1993 decky 1775
    return -1;
1363 vana 1776
}
1490 palkovsky 1777
 
4337 svoboda 1778
/**
1649 cejka 1779
 * @}
1780
 */