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1363 vana 1
/*
2
 * Copyright (C) 2006 Jakub Vana
1404 palkovsky 3
 * Copyright (C) 2006 Ondrej Palkovsky
1363 vana 4
 * All rights reserved.
5
 *
6
 * Redistribution and use in source and binary forms, with or without
7
 * modification, are permitted provided that the following conditions
8
 * are met:
9
 *
10
 * - Redistributions of source code must retain the above copyright
11
 *   notice, this list of conditions and the following disclaimer.
12
 * - Redistributions in binary form must reproduce the above copyright
13
 *   notice, this list of conditions and the following disclaimer in the
14
 *   documentation and/or other materials provided with the distribution.
15
 * - The name of the author may not be used to endorse or promote products
16
 *   derived from this software without specific prior written permission.
17
 *
18
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
 */
29
 
1430 jermar 30
#include <stdlib.h>
31
#include <unistd.h>
32
#include <string.h>
1363 vana 33
#include <ddi.h>
34
#include <sysinfo.h>
35
#include <align.h>
36
#include <as.h>
37
#include <ipc/fb.h>
38
#include <ipc/ipc.h>
1430 jermar 39
#include <ipc/ns.h>
1363 vana 40
#include <ipc/services.h>
41
#include <kernel/errno.h>
1392 palkovsky 42
#include <async.h>
1505 palkovsky 43
 
1404 palkovsky 44
#include "font-8x16.h"
45
#include "helenos.xbm"
1363 vana 46
#include "fb.h"
1505 palkovsky 47
#include "main.h"
48
#include "../console/screenbuffer.h"
1547 palkovsky 49
#include "ppm.h"
1363 vana 50
 
1485 palkovsky 51
#define DEFAULT_BGCOLOR                0x000080
52
#define DEFAULT_FGCOLOR                0xffff00
1363 vana 53
 
54
/***************************************************************/
55
/* Pixel specific fuctions */
56
 
1555 palkovsky 57
typedef void (*conv2scr_fn_t)(void *, int);
58
typedef int (*conv2rgb_fn_t)(void *);
1363 vana 59
 
1485 palkovsky 60
struct {
1363 vana 61
    __u8 *fbaddress ;
62
 
63
    unsigned int xres ;
64
    unsigned int yres ;
65
    unsigned int scanline ;
66
    unsigned int pixelbytes ;
67
 
1555 palkovsky 68
    conv2scr_fn_t rgb2scr;
69
    conv2rgb_fn_t scr2rgb;
1485 palkovsky 70
} screen;
1363 vana 71
 
1485 palkovsky 72
typedef struct {
73
    int initialized;
74
    unsigned int x, y;
75
    unsigned int width, height;
1363 vana 76
 
1485 palkovsky 77
    /* Text support in window */
78
    unsigned int rows, cols;
79
    /* Style for text printing */
1509 palkovsky 80
    style_t style;
1485 palkovsky 81
    /* Auto-cursor position */
1486 palkovsky 82
    int cursor_active, cur_col, cur_row;
1500 palkovsky 83
    int cursor_shown;
1485 palkovsky 84
} viewport_t;
1363 vana 85
 
1552 palkovsky 86
/** Maximum number of saved pixmaps
87
 * Pixmap is a saved rectangle
88
 */
89
#define MAX_PIXMAPS        256
90
typedef struct {
91
    unsigned int width;
92
    unsigned int height;
1555 palkovsky 93
    __u8 *data;
1552 palkovsky 94
} pixmap_t;
95
static pixmap_t pixmaps[MAX_PIXMAPS];
96
 
97
/* Viewport is a rectangular area on the screen */
1485 palkovsky 98
#define MAX_VIEWPORTS 128
99
static viewport_t viewports[128];
100
 
101
/* Allow only 1 connection */
102
static int client_connected = 0;
103
 
1363 vana 104
#define RED(x, bits)    ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
105
#define GREEN(x, bits)  ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
106
#define BLUE(x, bits)   ((x >> (8 - bits)) & ((1 << bits) - 1))
107
 
1485 palkovsky 108
#define COL_WIDTH   8
109
#define ROW_BYTES   (screen.scanline * FONT_SCANLINES)
1363 vana 110
 
1485 palkovsky 111
#define POINTPOS(x, y)  ((y) * screen.scanline + (x) * screen.pixelbytes)
1363 vana 112
 
1555 palkovsky 113
/* Conversion routines between different color representations */
114
static void rgb_4byte(void *dst, int rgb)
1363 vana 115
{
1555 palkovsky 116
    *(int *)dst = rgb;
1363 vana 117
}
118
 
1555 palkovsky 119
static int byte4_rgb(void *src)
1363 vana 120
{
1555 palkovsky 121
    return (*(int *)src) & 0xffffff;
1363 vana 122
}
123
 
1555 palkovsky 124
static void rgb_3byte(void *dst, int rgb)
1363 vana 125
{
1555 palkovsky 126
    __u8 *scr = dst;
1363 vana 127
#if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
1555 palkovsky 128
    scr[0] = RED(rgb, 8);
129
    scr[1] = GREEN(rgb, 8);
130
    scr[2] = BLUE(rgb, 8);
1363 vana 131
#else
1555 palkovsky 132
    scr[2] = RED(rgb, 8);
133
    scr[1] = GREEN(rgb, 8);
134
    scr[0] = BLUE(rgb, 8);
1363 vana 135
#endif
136
 
1555 palkovsky 137
 
1363 vana 138
}
139
 
1555 palkovsky 140
static int byte3_rgb(void *src)
1363 vana 141
{
1555 palkovsky 142
    __u8 *scr = src;
1363 vana 143
#if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
1555 palkovsky 144
    return scr[0] << 16 | scr[1] << 8 | scr[2];
1363 vana 145
#else
1555 palkovsky 146
    return scr[2] << 16 | scr[1] << 8 | scr[0];
147
#endif  
1363 vana 148
}
149
 
1555 palkovsky 150
/**  16-bit depth (5:6:5) */
151
static void rgb_2byte(void *dst, int rgb)
1363 vana 152
{
153
    /* 5-bit, 6-bits, 5-bits */
1555 palkovsky 154
    *((__u16 *)(dst)) = RED(rgb, 5) << 11 | GREEN(rgb, 6) << 5 | BLUE(rgb, 5);
1363 vana 155
}
156
 
1555 palkovsky 157
/** 16-bit depth (5:6:5) */
158
static int byte2_rgb(void *src)
1363 vana 159
{
1555 palkovsky 160
    int color = *(__u16 *)(src);
1363 vana 161
    return (((color >> 11) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x3f) << (8 + 2)) | ((color & 0x1f) << 3);
162
}
163
 
164
/** Put pixel - 8-bit depth (3:2:3) */
1555 palkovsky 165
static void rgb_1byte(void *dst, int rgb)
1363 vana 166
{
1555 palkovsky 167
    *(__u8 *)dst = RED(rgb, 3) << 5 | GREEN(rgb, 2) << 3 | BLUE(rgb, 3);
1363 vana 168
}
169
 
170
/** Return pixel color - 8-bit depth (3:2:3) */
1555 palkovsky 171
static int byte1_rgb(void *src)
1363 vana 172
{
1555 palkovsky 173
    int color = *(__u8 *)src;
1363 vana 174
    return (((color >> 5) & 0x7) << (16 + 5)) | (((color >> 3) & 0x3) << (8 + 6)) | ((color & 0x7) << 5);
175
}
176
 
1498 palkovsky 177
/** Put pixel into viewport
178
 *
179
 * @param vp Viewport identification
180
 * @param x X coord relative to viewport
181
 * @param y Y coord relative to viewport
182
 * @param color RGB color
183
 */
1485 palkovsky 184
static void putpixel(int vp, unsigned int x, unsigned int y, int color)
185
{
1555 palkovsky 186
    int dx = viewports[vp].x + x;
187
    int dy = viewports[vp].y + y;
188
    (*screen.rgb2scr)(&screen.fbaddress[POINTPOS(dx,dy)],color);
1485 palkovsky 189
}
1498 palkovsky 190
/** Get pixel from viewport */
1485 palkovsky 191
static int getpixel(int vp, unsigned int x, unsigned int y)
192
{
1555 palkovsky 193
    int dx = viewports[vp].x + x;
194
    int dy = viewports[vp].y + y;
195
 
196
    return (*screen.scr2rgb)(&screen.fbaddress[POINTPOS(dx,dy)]);
1485 palkovsky 197
}
198
 
1363 vana 199
/** Fill line with color BGCOLOR */
1485 palkovsky 200
static void clear_line(int vp, unsigned int y)
1363 vana 201
{
202
    unsigned int x;
1485 palkovsky 203
    for (x = 0; x < viewports[vp].width; x++)
1509 palkovsky 204
        putpixel(vp, x, y, viewports[vp].style.bg_color);
1363 vana 205
}
206
 
1559 palkovsky 207
static void draw_rectangle(int vp, unsigned int sx, unsigned int sy,
208
               unsigned int width, unsigned int height,
209
               int color)
210
{
211
    unsigned int x, y;
212
 
213
    /* Clear first line */
214
    for (x = 0; x < width; x++)
215
        putpixel(vp, sx + x, sy, color);
216
 
217
    /* Recompute to screen coords */
218
    sx += viewports[vp].x;
219
    sy += viewports[vp].y;
220
    /* Copy the rest */
221
    for (y = sy+1;y < sy+height; y++)
222
        memcpy(&screen.fbaddress[POINTPOS(sx,y)],
223
               &screen.fbaddress[POINTPOS(sx,sy)],
224
               screen.pixelbytes * width);
225
 
226
}
227
 
1485 palkovsky 228
/** Fill viewport with background color */
229
static void clear_port(int vp)
1363 vana 230
{
1559 palkovsky 231
    viewport_t *vport = &viewports[vp];
1485 palkovsky 232
 
1559 palkovsky 233
    draw_rectangle(vp, 0, 0, vport->width, vport->height, vport->style.bg_color);
1363 vana 234
}
235
 
1485 palkovsky 236
/** Scroll port up/down
237
 *
238
 * @param vp Viewport to scroll
239
 * @param rows Positive number - scroll up, negative - scroll down
240
 */
241
static void scroll_port(int vp, int rows)
1363 vana 242
{
1485 palkovsky 243
    int y;
244
    int startline;
245
    int endline;
1559 palkovsky 246
    viewport_t *vport = &viewports[vp];
1485 palkovsky 247
 
248
    if (rows > 0) {
1559 palkovsky 249
        for (y=vport->y; y < vport->y+vport->height - rows*FONT_SCANLINES; y++)
250
            memcpy(&screen.fbaddress[POINTPOS(vport->x,y)],
251
                   &screen.fbaddress[POINTPOS(vport->x,y + rows*FONT_SCANLINES)],
252
                   screen.pixelbytes * vport->width);
253
        draw_rectangle(vp, 0, FONT_SCANLINES*(vport->rows - 1),
254
                   vport->width, FONT_SCANLINES, vport->style.bg_color);
1485 palkovsky 255
    } else if (rows < 0) {
256
        rows = -rows;
1559 palkovsky 257
        for (y=vport->y + vport->height-1; y >= vport->y + rows*FONT_SCANLINES; y--)
258
            memcpy(&screen.fbaddress[POINTPOS(vport->x,y)],
259
                &screen.fbaddress[POINTPOS(vport->x,y - rows*FONT_SCANLINES)],
260
                screen.pixelbytes * vport->width);
261
        draw_rectangle(vp, 0, 0, vport->width, FONT_SCANLINES, vport->style.bg_color);
1485 palkovsky 262
    }
1363 vana 263
}
264
 
1485 palkovsky 265
static void invert_pixel(int vp,unsigned int x, unsigned int y)
1363 vana 266
{
1485 palkovsky 267
    putpixel(vp, x, y, ~getpixel(vp, x, y));
1363 vana 268
}
269
 
270
 
271
/***************************************************************/
272
/* Character-console functions */
273
 
1558 palkovsky 274
/** Draw character at given position
275
 *
276
 * @param vp Viewport where the character is printed
277
 * @param sx Coordinates of top-left of the character
278
 * @param sy Coordinates of top-left of the character
279
 * @param style Color of the character
280
 * @param transparent If false, print background color
281
 */
282
static void draw_glyph(int vp,__u8 glyph, unsigned int sx, unsigned int sy,
283
               style_t style, int transparent)
1363 vana 284
{
1509 palkovsky 285
    int i;
1363 vana 286
    unsigned int y;
1509 palkovsky 287
    unsigned int glline;
1363 vana 288
 
1509 palkovsky 289
    for (y = 0; y < FONT_SCANLINES; y++) {
290
        glline = fb_font[glyph * FONT_SCANLINES + y];
291
        for (i = 0; i < 8; i++) {
292
            if (glline & (1 << (7 - i)))
293
                putpixel(vp, sx + i, sy + y, style.fg_color);
1558 palkovsky 294
            else if (!transparent)
1509 palkovsky 295
                putpixel(vp, sx + i, sy + y, style.bg_color);
296
        }
297
    }
1363 vana 298
}
299
 
300
/** Invert character at given position */
1489 palkovsky 301
static void invert_char(int vp,unsigned int row, unsigned int col)
1363 vana 302
{
303
    unsigned int x;
304
    unsigned int y;
305
 
306
    for (x = 0; x < COL_WIDTH; x++)
307
        for (y = 0; y < FONT_SCANLINES; y++)
1485 palkovsky 308
            invert_pixel(vp, col * COL_WIDTH + x, row * FONT_SCANLINES + y);
1363 vana 309
}
310
 
311
/***************************************************************/
312
/* Stdout specific functions */
313
 
314
 
1485 palkovsky 315
/** Create new viewport
1363 vana 316
 *
1485 palkovsky 317
 * @return New viewport number
1363 vana 318
 */
1485 palkovsky 319
static int viewport_create(unsigned int x, unsigned int y,unsigned int width,
320
               unsigned int height)
1363 vana 321
{
1485 palkovsky 322
    int i;
323
 
1498 palkovsky 324
for (i=0; i < MAX_VIEWPORTS; i++) {
1485 palkovsky 325
        if (!viewports[i].initialized)
1363 vana 326
            break;
327
    }
1485 palkovsky 328
    if (i == MAX_VIEWPORTS)
329
        return ELIMIT;
330
 
1486 palkovsky 331
    if (width ==0 || height == 0 ||
332
        x+width > screen.xres || y+height > screen.yres)
333
        return EINVAL;
334
    if (width < FONT_SCANLINES || height < COL_WIDTH)
335
        return EINVAL;
336
 
1485 palkovsky 337
    viewports[i].x = x;
338
    viewports[i].y = y;
339
    viewports[i].width = width;
340
    viewports[i].height = height;
1363 vana 341
 
1485 palkovsky 342
    viewports[i].rows = height / FONT_SCANLINES;
343
    viewports[i].cols = width / COL_WIDTH;
344
 
1509 palkovsky 345
    viewports[i].style.bg_color = DEFAULT_BGCOLOR;
346
    viewports[i].style.fg_color = DEFAULT_FGCOLOR;
1363 vana 347
 
1489 palkovsky 348
    viewports[i].cur_col = 0;
349
    viewports[i].cur_row = 0;
350
    viewports[i].cursor_active = 0;
351
 
1486 palkovsky 352
    viewports[i].initialized = 1;
353
 
1485 palkovsky 354
    return i;
1363 vana 355
}
356
 
357
 
358
/** Initialize framebuffer as a chardev output device
359
 *
360
 * @param addr Address of theframebuffer
361
 * @param x    Screen width in pixels
362
 * @param y    Screen height in pixels
363
 * @param bpp  Bits per pixel (8, 16, 24, 32)
364
 * @param scan Bytes per one scanline
365
 *
366
 */
1501 palkovsky 367
static void screen_init(void *addr, unsigned int xres, unsigned int yres, unsigned int bpp, unsigned int scan)
1363 vana 368
{
369
    switch (bpp) {
370
        case 8:
1555 palkovsky 371
            screen.rgb2scr = rgb_1byte;
372
            screen.scr2rgb = byte1_rgb;
1485 palkovsky 373
            screen.pixelbytes = 1;
1363 vana 374
            break;
375
        case 16:
1555 palkovsky 376
            screen.rgb2scr = rgb_2byte;
377
            screen.scr2rgb = byte2_rgb;
1485 palkovsky 378
            screen.pixelbytes = 2;
1363 vana 379
            break;
380
        case 24:
1555 palkovsky 381
            screen.rgb2scr = rgb_3byte;
382
            screen.scr2rgb = byte3_rgb;
1485 palkovsky 383
            screen.pixelbytes = 3;
1363 vana 384
            break;
385
        case 32:
1555 palkovsky 386
            screen.rgb2scr = rgb_4byte;
387
            screen.scr2rgb = byte4_rgb;
1485 palkovsky 388
            screen.pixelbytes = 4;
1363 vana 389
            break;
390
    }
391
 
392
 
1485 palkovsky 393
    screen.fbaddress = (unsigned char *) addr;
394
    screen.xres = xres;
395
    screen.yres = yres;
396
    screen.scanline = scan;
1363 vana 397
 
1485 palkovsky 398
    /* Create first viewport */
399
    viewport_create(0,0,xres,yres);
400
}
1363 vana 401
 
1552 palkovsky 402
/** Hide cursor if it is shown */
1500 palkovsky 403
static void cursor_hide(int vp)
404
{
405
    viewport_t *vport = &viewports[vp];
406
 
407
    if (vport->cursor_active && vport->cursor_shown) {
408
        invert_char(vp, vport->cur_row, vport->cur_col);
409
        vport->cursor_shown = 0;
410
    }
411
}
412
 
1552 palkovsky 413
/** Show cursor if cursor showing is enabled */
1500 palkovsky 414
static void cursor_print(int vp)
415
{
416
    viewport_t *vport = &viewports[vp];
417
 
418
    /* Do not check for cursor_shown */
419
    if (vport->cursor_active) {
420
        invert_char(vp, vport->cur_row, vport->cur_col);
421
        vport->cursor_shown = 1;
422
    }
423
}
424
 
1552 palkovsky 425
/** Invert cursor, if it is enabled */
1500 palkovsky 426
static void cursor_blink(int vp)
427
{
428
    viewport_t *vport = &viewports[vp];
429
 
430
    if (vport->cursor_shown)
431
        cursor_hide(vp);
432
    else
433
        cursor_print(vp);
434
}
435
 
1498 palkovsky 436
/** Draw character at given position relative to viewport
437
 *
438
 * @param vp Viewport identification
439
 * @param c Character to print
440
 * @param row Screen position relative to viewport
441
 * @param col Screen position relative to viewport
1558 palkovsky 442
 * @param transparent If false, print background color with character
1498 palkovsky 443
 */
1558 palkovsky 444
static void draw_char(int vp, char c, unsigned int row, unsigned int col, style_t style, int transparent)
1486 palkovsky 445
{
446
    viewport_t *vport = &viewports[vp];
447
 
1500 palkovsky 448
    /* Optimize - do not hide cursor if we are going to overwrite it */
449
    if (vport->cursor_active && vport->cursor_shown &&
450
        (vport->cur_col != col || vport->cur_row != row))
1489 palkovsky 451
        invert_char(vp, vport->cur_row, vport->cur_col);
1486 palkovsky 452
 
1558 palkovsky 453
    draw_glyph(vp, c, col * COL_WIDTH, row * FONT_SCANLINES, style, transparent);
1489 palkovsky 454
 
455
    vport->cur_col = col;
456
    vport->cur_row = row;
457
 
458
    vport->cur_col++;
459
    if (vport->cur_col>= vport->cols) {
460
        vport->cur_col = 0;
461
        vport->cur_row++;
462
        if (vport->cur_row >= vport->rows)
463
            vport->cur_row--;
1486 palkovsky 464
    }
1500 palkovsky 465
    cursor_print(vp);
1486 palkovsky 466
}
467
 
1552 palkovsky 468
/** Draw text data to viewport
469
 *
470
 * @param vp Viewport id
471
 * @param data Text data fitting exactly into viewport
472
 */
1505 palkovsky 473
static void draw_text_data(int vp, keyfield_t *data)
474
{
475
    viewport_t *vport = &viewports[vp];
476
    int i;
477
    char c;
1515 palkovsky 478
    int col,row;
1505 palkovsky 479
 
480
    clear_port(vp);
481
    for (i=0; i < vport->cols * vport->rows; i++) {
1509 palkovsky 482
        if (data[i].character == ' ' && style_same(data[i].style,vport->style))
1505 palkovsky 483
            continue;
1515 palkovsky 484
        col = i % vport->cols;
485
        row = i / vport->cols;
1558 palkovsky 486
        draw_glyph(vp, data[i].character, col * COL_WIDTH, row * FONT_SCANLINES,
487
               data[i].style, style_same(data[i].style,vport->style));
1505 palkovsky 488
    }
489
    cursor_print(vp);
490
}
491
 
1555 palkovsky 492
 
493
/** Return first free pixmap */
494
static int find_free_pixmap(void)
495
{
496
    int i;
497
 
498
    for (i=0;i < MAX_PIXMAPS;i++)
499
        if (!pixmaps[i].data)
500
            return i;
501
    return -1;
502
}
503
 
504
static void putpixel_pixmap(int pm, unsigned int x, unsigned int y, int color)
505
{
506
    pixmap_t *pmap = &pixmaps[pm];
507
    int pos = (y * pmap->width + x) * screen.pixelbytes;
508
 
509
    (*screen.rgb2scr)(&pmap->data[pos],color);
510
}
511
 
512
/** Create a new pixmap and return appropriate ID */
513
static int shm2pixmap(char *shm, size_t size)
514
{
515
    int pm;
516
    pixmap_t *pmap;
517
 
518
    pm = find_free_pixmap();
519
    if (pm == -1)
520
        return ELIMIT;
521
    pmap = &pixmaps[pm];
522
 
523
    if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
524
        return EINVAL;
525
 
526
    pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
527
    if (!pmap->data)
528
        return ENOMEM;
529
 
530
    ppm_draw(shm, size, 0, 0, pmap->width, pmap->height,
531
         putpixel_pixmap, pm);
532
 
533
    return pm;
534
}
535
 
1552 palkovsky 536
/** Handle shared memory communication calls
537
 *
538
 * Protocol for drawing pixmaps:
539
 * - FB_PREPARE_SHM(client shm identification)
540
 * - IPC_M_SEND_AS_AREA
541
 * - FB_DRAW_PPM(startx,starty)
542
 * - FB_DROP_SHM
543
 *
544
 * Protocol for text drawing
545
 * - IPC_M_SEND_AS_AREA
546
 * - FB_DRAW_TEXT_DATA
547
 *
548
 * @param callid Callid of the current call
549
 * @param call Current call data
550
 * @param vp Active viewport
551
 * @return 0 if the call was not handled byt this function, 1 otherwise
552
 *
553
 * note: this function is not threads safe, you would have
554
 * to redefine static variables with __thread
555
 */
1547 palkovsky 556
static int shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
557
{
558
    static keyfield_t *interbuffer = NULL;
559
    static size_t intersize = 0;
1505 palkovsky 560
 
1555 palkovsky 561
    static char *shm = NULL;
562
    static ipcarg_t shm_id = 0;
563
    static size_t shm_size;
1547 palkovsky 564
 
565
    int handled = 1;
566
    int retval = 0;
567
    viewport_t *vport = &viewports[vp];
568
    unsigned int x,y;
569
 
570
    switch (IPC_GET_METHOD(*call)) {
571
    case IPC_M_AS_AREA_SEND:
572
        /* We accept one area for data interchange */
1555 palkovsky 573
        if (IPC_GET_ARG1(*call) == shm_id) {
1547 palkovsky 574
            void *dest = as_get_mappable_page(IPC_GET_ARG2(*call));
1555 palkovsky 575
            shm_size = IPC_GET_ARG2(*call);
1547 palkovsky 576
            if (!ipc_answer_fast(callid, 0, (sysarg_t)dest, 0))
1555 palkovsky 577
                shm = dest;
1547 palkovsky 578
            else
1555 palkovsky 579
                shm_id = 0;
580
            if (shm[0] != 'P')
1547 palkovsky 581
                while (1)
582
                    ;
583
            return 1;
584
        } else {
585
            intersize = IPC_GET_ARG2(*call);
586
            receive_comm_area(callid,call,(void **)&interbuffer);
587
        }
588
        return 1;
589
    case FB_PREPARE_SHM:
1555 palkovsky 590
        if (shm_id)
1547 palkovsky 591
            retval = EBUSY;
592
        else
1555 palkovsky 593
            shm_id = IPC_GET_ARG1(*call);
1547 palkovsky 594
        break;
595
 
596
    case FB_DROP_SHM:
1555 palkovsky 597
        if (shm) {
598
            as_area_destroy(shm);
599
            shm = NULL;
1547 palkovsky 600
        }
1555 palkovsky 601
        shm_id = 0;
1547 palkovsky 602
        break;
1555 palkovsky 603
 
604
    case FB_SHM2PIXMAP:
605
        if (!shm) {
606
            retval = EINVAL;
607
            break;
608
        }
609
        retval = shm2pixmap(shm, shm_size);
610
        break;
1547 palkovsky 611
    case FB_DRAW_PPM:
1555 palkovsky 612
        if (!shm) {
1547 palkovsky 613
            retval = EINVAL;
614
            break;
615
        }
616
        x = IPC_GET_ARG1(*call);
617
        y = IPC_GET_ARG2(*call);
618
        if (x > vport->width || y > vport->height) {
619
            retval = EINVAL;
620
            break;
621
        }
622
 
1555 palkovsky 623
        ppm_draw(shm, shm_size, IPC_GET_ARG1(*call), IPC_GET_ARG2(*call),
1547 palkovsky 624
             vport->width - x, vport->height - y, putpixel, vp);
625
        break;
626
    case FB_DRAW_TEXT_DATA:
627
        if (!interbuffer) {
628
            retval = EINVAL;
629
            break;
630
        }
631
        if (intersize < vport->cols*vport->rows*sizeof(*interbuffer)) {
632
            retval = EINVAL;
633
            break;
634
        }
635
        draw_text_data(vp, interbuffer);
636
        break;
637
    default:
638
        handled = 0;
639
    }
640
 
641
    if (handled)
642
        ipc_answer_fast(callid, retval, 0, 0);
643
    return handled;
644
}
645
 
1552 palkovsky 646
/** Save viewport to pixmap */
647
static int save_vp_to_pixmap(int vp)
648
{
649
    int pm;
650
    pixmap_t *pmap;
651
    viewport_t *vport = &viewports[vp];
652
    int x,y;
653
    int rowsize;
654
    int tmp;
655
 
656
    pm = find_free_pixmap();
657
    if (pm == -1)
658
        return ELIMIT;
659
 
660
    pmap = &pixmaps[pm];
661
    pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
662
    if (!pmap->data)
663
        return ENOMEM;
664
 
665
    pmap->width = vport->width;
666
    pmap->height = vport->height;
667
 
668
    rowsize = vport->width * screen.pixelbytes;
669
    for (y=0;y < vport->height; y++) {
670
        tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
671
        memcpy(pmap->data + rowsize*y, screen.fbaddress + tmp, rowsize);
672
    }
673
    return pm;
674
}
675
 
676
/** Draw pixmap on screen
677
 *
678
 * @param vp Viewport to draw on
679
 * @param pm Pixmap identifier
680
 */
681
static int draw_pixmap(int vp, int pm)
682
{
683
    pixmap_t *pmap = &pixmaps[pm];
684
    viewport_t *vport = &viewports[vp];
685
    int x,y;
686
    int tmp, srcrowsize;
687
    int realwidth, realheight, realrowsize;
688
 
689
    if (!pmap->data)
690
        return EINVAL;
691
 
692
    realwidth = pmap->width <= vport->width ? pmap->width : vport->width;
693
    realheight = pmap->height <= vport->height ? pmap->height : vport->height;
694
 
695
    srcrowsize = vport->width * screen.pixelbytes;
696
    realrowsize = realwidth * screen.pixelbytes;
697
 
698
    for (y=0; y < realheight; y++) {
699
        tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
700
        memcpy(screen.fbaddress + tmp, pmap->data + y * srcrowsize, realrowsize);
701
    }
702
}
703
 
704
/** Handler for messages concerning pixmap handling */
705
static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
706
{
707
    int handled = 1;
708
    int retval = 0;
709
    int i,nvp;
710
 
711
    switch (IPC_GET_METHOD(*call)) {
712
    case FB_VP_DRAW_PIXMAP:
713
        nvp = IPC_GET_ARG1(*call);
714
        if (nvp == -1)
715
            nvp = vp;
716
        if (nvp < 0 || nvp >= MAX_VIEWPORTS || !viewports[nvp].initialized) {
717
            retval = EINVAL;
718
            break;
719
        }
720
        i = IPC_GET_ARG2(*call);
721
        retval = draw_pixmap(nvp, i);
722
        break;
723
    case FB_VP2PIXMAP:
724
        nvp = IPC_GET_ARG1(*call);
725
        if (nvp == -1)
726
            nvp = vp;
727
        if (nvp < 0 || nvp >= MAX_VIEWPORTS || !viewports[nvp].initialized)
728
            retval = EINVAL;
729
        else
730
            retval = save_vp_to_pixmap(nvp);
731
        break;
732
    case FB_DROP_PIXMAP:
733
        i = IPC_GET_ARG1(*call);
734
        if (i >= MAX_PIXMAPS) {
735
            retval = EINVAL;
736
            break;
737
        }
738
        if (pixmaps[i].data) {
739
            free(pixmaps[i].data);
740
            pixmaps[i].data = NULL;
741
        }
742
        break;
743
    default:
744
        handled = 0;
745
    }
746
 
747
    if (handled)
748
        ipc_answer_fast(callid, retval, 0, 0);
749
    return handled;
750
 
751
}
752
 
1498 palkovsky 753
/** Function for handling connections to FB
754
 *
755
 */
1490 palkovsky 756
static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363 vana 757
{
1485 palkovsky 758
    ipc_callid_t callid;
759
    ipc_call_t call;
760
    int retval;
761
    int i;
762
    unsigned int row,col;
763
    char c;
1486 palkovsky 764
 
1485 palkovsky 765
    int vp = 0;
1486 palkovsky 766
    viewport_t *vport = &viewports[0];
1363 vana 767
 
1485 palkovsky 768
    if (client_connected) {
769
        ipc_answer_fast(iid, ELIMIT, 0,0);
770
        return;
771
    }
1486 palkovsky 772
    client_connected = 1;
1485 palkovsky 773
    ipc_answer_fast(iid, 0, 0, 0); /* Accept connection */
1363 vana 774
 
1485 palkovsky 775
    while (1) {
1500 palkovsky 776
        callid = async_get_call_timeout(&call,250000);
777
        if (!callid) {
778
            cursor_blink(vp);
779
            continue;
780
        }
1547 palkovsky 781
        if (shm_handle(callid, &call, vp))
782
            continue;
1552 palkovsky 783
        if (pixmap_handle(callid, &call, vp))
784
            continue;
1547 palkovsky 785
 
1485 palkovsky 786
        switch (IPC_GET_METHOD(call)) {
787
        case IPC_M_PHONE_HUNGUP:
788
            client_connected = 0;
789
            /* cleanup other viewports */
790
            for (i=1; i < MAX_VIEWPORTS; i++)
1486 palkovsky 791
                vport->initialized = 0;
1485 palkovsky 792
            ipc_answer_fast(callid,0,0,0);
793
            return; /* Exit thread */
1505 palkovsky 794
 
1485 palkovsky 795
        case FB_PUTCHAR:
1558 palkovsky 796
        case FB_TRANS_PUTCHAR:
1485 palkovsky 797
            c = IPC_GET_ARG1(call);
798
            row = IPC_GET_ARG2(call);
799
            col = IPC_GET_ARG3(call);
1486 palkovsky 800
            if (row >= vport->rows || col >= vport->cols) {
1485 palkovsky 801
                retval = EINVAL;
802
                break;
803
            }
804
            ipc_answer_fast(callid,0,0,0);
1486 palkovsky 805
 
1558 palkovsky 806
            draw_char(vp, c, row, col, vport->style, IPC_GET_METHOD(call) == FB_TRANS_PUTCHAR);
1485 palkovsky 807
            continue; /* msg already answered */
808
        case FB_CLEAR:
809
            clear_port(vp);
1500 palkovsky 810
            cursor_print(vp);
1485 palkovsky 811
            retval = 0;
812
            break;
1486 palkovsky 813
        case FB_CURSOR_GOTO:
814
            row = IPC_GET_ARG1(call);
815
            col = IPC_GET_ARG2(call);
816
            if (row >= vport->rows || col >= vport->cols) {
817
                retval = EINVAL;
818
                break;
819
            }
820
            retval = 0;
1500 palkovsky 821
            cursor_hide(vp);
1486 palkovsky 822
            vport->cur_col = col;
823
            vport->cur_row = row;
1500 palkovsky 824
            cursor_print(vp);
1486 palkovsky 825
            break;
826
        case FB_CURSOR_VISIBILITY:
1500 palkovsky 827
            cursor_hide(vp);
828
            vport->cursor_active = IPC_GET_ARG1(call);
829
            cursor_print(vp);
1486 palkovsky 830
            retval = 0;
831
            break;
1485 palkovsky 832
        case FB_GET_CSIZE:
1486 palkovsky 833
            ipc_answer_fast(callid, 0, vport->rows, vport->cols);
1485 palkovsky 834
            continue;
1486 palkovsky 835
        case FB_SCROLL:
836
            i = IPC_GET_ARG1(call);
837
            if (i > vport->rows || i < (- (int)vport->rows)) {
838
                retval = EINVAL;
839
                break;
840
            }
1500 palkovsky 841
            cursor_hide(vp);
1486 palkovsky 842
            scroll_port(vp, i);
1500 palkovsky 843
            cursor_print(vp);
1486 palkovsky 844
            retval = 0;
845
            break;
846
        case FB_VIEWPORT_SWITCH:
847
            i = IPC_GET_ARG1(call);
848
            if (i < 0 || i >= MAX_VIEWPORTS) {
849
                retval = EINVAL;
850
                break;
851
            }
852
            if (! viewports[i].initialized ) {
853
                retval = EADDRNOTAVAIL;
854
                break;
855
            }
1500 palkovsky 856
            cursor_hide(vp);
1486 palkovsky 857
            vp = i;
858
            vport = &viewports[vp];
1500 palkovsky 859
            cursor_print(vp);
1486 palkovsky 860
            retval = 0;
861
            break;
862
        case FB_VIEWPORT_CREATE:
863
            retval = viewport_create(IPC_GET_ARG1(call) >> 16,
864
                         IPC_GET_ARG1(call) & 0xffff,
865
                         IPC_GET_ARG2(call) >> 16,
866
                         IPC_GET_ARG2(call) & 0xffff);
867
            break;
868
        case FB_VIEWPORT_DELETE:
869
            i = IPC_GET_ARG1(call);
870
            if (i < 0 || i >= MAX_VIEWPORTS) {
871
                retval = EINVAL;
872
                break;
873
            }
874
            if (! viewports[i].initialized ) {
875
                retval = EADDRNOTAVAIL;
876
                break;
877
            }
878
            viewports[i].initialized = 0;
879
            retval = 0;
880
            break;
881
        case FB_SET_STYLE:
1509 palkovsky 882
            vport->style.fg_color = IPC_GET_ARG1(call);
883
            vport->style.bg_color = IPC_GET_ARG2(call);
1486 palkovsky 884
            retval = 0;
885
            break;
886
        case FB_GET_RESOLUTION:
887
            ipc_answer_fast(callid, 0, screen.xres,screen.yres);
888
            continue;
1485 palkovsky 889
        default:
890
            retval = ENOENT;
891
        }
892
        ipc_answer_fast(callid,retval,0,0);
1363 vana 893
    }
1485 palkovsky 894
}
1363 vana 895
 
1498 palkovsky 896
/** Initialization of framebuffer */
1490 palkovsky 897
int fb_init(void)
1485 palkovsky 898
{
1501 palkovsky 899
    void *fb_ph_addr;
1490 palkovsky 900
    unsigned int fb_width;
901
    unsigned int fb_height;
902
    unsigned int fb_bpp;
903
    unsigned int fb_scanline;
1501 palkovsky 904
    void *fb_addr;
905
    size_t asz;
1363 vana 906
 
1490 palkovsky 907
    async_set_client_connection(fb_client_connection);
1363 vana 908
 
1501 palkovsky 909
    fb_ph_addr=(void *)sysinfo_value("fb.address.physical");
1490 palkovsky 910
    fb_width=sysinfo_value("fb.width");
911
    fb_height=sysinfo_value("fb.height");
912
    fb_bpp=sysinfo_value("fb.bpp");
913
    fb_scanline=sysinfo_value("fb.scanline");
914
 
1501 palkovsky 915
    asz = fb_scanline*fb_height;
916
    fb_addr = as_get_mappable_page(asz);
1485 palkovsky 917
 
1501 palkovsky 918
    map_physmem(fb_ph_addr, fb_addr, ALIGN_UP(asz,PAGE_SIZE) >>PAGE_WIDTH,
1490 palkovsky 919
            AS_AREA_READ | AS_AREA_WRITE | AS_AREA_CACHEABLE);
920
 
921
    screen_init(fb_addr, fb_width, fb_height, fb_bpp, fb_scanline);
1363 vana 922
 
1485 palkovsky 923
    return 0;
1363 vana 924
}
1490 palkovsky 925