summaryrefslogtreecommitdiff
path: root/firmware/drivers/lcd-remote-2bit-vi.c
diff options
context:
space:
mode:
Diffstat (limited to 'firmware/drivers/lcd-remote-2bit-vi.c')
-rw-r--r--firmware/drivers/lcd-remote-2bit-vi.c1235
1 files changed, 6 insertions, 1229 deletions
diff --git a/firmware/drivers/lcd-remote-2bit-vi.c b/firmware/drivers/lcd-remote-2bit-vi.c
index 9f70e95195..d2440a6296 100644
--- a/firmware/drivers/lcd-remote-2bit-vi.c
+++ b/firmware/drivers/lcd-remote-2bit-vi.c
@@ -18,1235 +18,12 @@
18 * KIND, either express or implied. 18 * KIND, either express or implied.
19 * 19 *
20 ****************************************************************************/ 20 ****************************************************************************/
21#include "config.h"
22#include "cpu.h"
23#include "lcd.h"
24#include "lcd-remote.h"
25#include "kernel.h"
26#include "thread.h"
27#include <string.h>
28#include <stdlib.h>
29#include "memory.h"
30#include "file.h"
31#include "debug.h"
32#include "system.h"
33#include "font.h"
34#include "rbunicode.h"
35#include "bidi.h"
36#include "lcd-remote-target.h"
37#include "scroll_engine.h"
38
39/*** globals ***/
40
41fb_remote_data lcd_remote_framebuffer[LCD_REMOTE_FBHEIGHT][LCD_REMOTE_FBWIDTH]
42 IBSS_ATTR;
43
44static const fb_remote_data patterns[4] = {0xFFFF, 0xFF00, 0x00FF, 0x0000};
45
46static fb_remote_data* remote_backdrop = NULL;
47static long remote_backdrop_offset IDATA_ATTR = 0;
48
49static struct viewport default_vp =
50{
51 .x = 0,
52 .y = 0,
53 .width = LCD_REMOTE_WIDTH,
54 .height = LCD_REMOTE_HEIGHT,
55 .font = FONT_SYSFIXED,
56 .drawmode = DRMODE_SOLID,
57 .xmargin = 0,
58 .ymargin = 0,
59 .fg_pattern = LCD_REMOTE_DEFAULT_FG,
60 .bg_pattern = LCD_REMOTE_DEFAULT_BG
61};
62
63static unsigned fg_pattern IBSS_ATTR;
64static unsigned bg_pattern IBSS_ATTR;
65
66static struct viewport* current_vp IBSS_ATTR;;
67
68/*** Viewports ***/
69
70void lcd_remote_set_viewport(struct viewport* vp)
71{
72 if (vp == NULL)
73 current_vp = &default_vp;
74 else
75 current_vp = vp;
76
77 fg_pattern = patterns[current_vp->fg_pattern & 3];
78 bg_pattern = patterns[current_vp->bg_pattern & 3];
79}
80
81void lcd_remote_update_viewport(void)
82{
83 lcd_remote_update_rect(current_vp->x, current_vp->y,
84 current_vp->width, current_vp->height);
85}
86
87void lcd_remote_update_viewport_rect(int x, int y, int width, int height)
88{
89 lcd_remote_update_rect(current_vp->x + x, current_vp->y + y, width, height);
90}
91
92/*** parameter handling ***/
93unsigned lcd_remote_color_to_native(unsigned color)
94{
95 unsigned r = (color & 0xf800) >> 10;
96 unsigned g = (color & 0x07e0) >> 5;
97 unsigned b = (color & 0x001f) << 2;
98 /*
99 * |R|
100 * |Y'| = |0.299000 0.587000 0.114000| |G|
101 * |B|
102 */
103 return (5*r + 9*g + b) >> 8;
104}
105
106void lcd_remote_set_drawmode(int mode)
107{
108 current_vp->drawmode = mode & (DRMODE_SOLID|DRMODE_INVERSEVID);
109}
110
111int lcd_remote_get_drawmode(void)
112{
113 return current_vp->drawmode;
114}
115
116void lcd_remote_set_foreground(unsigned brightness)
117{
118 current_vp->fg_pattern = brightness;
119 fg_pattern = patterns[brightness & 3];
120}
121
122unsigned lcd_remote_get_foreground(void)
123{
124 return current_vp->fg_pattern;
125}
126
127void lcd_remote_set_background(unsigned brightness)
128{
129 current_vp->bg_pattern = brightness;
130 bg_pattern = patterns[brightness & 3];
131}
132
133unsigned lcd_remote_get_background(void)
134{
135 return current_vp->bg_pattern;
136}
137
138void lcd_remote_set_drawinfo(int mode, unsigned fg_brightness,
139 unsigned bg_brightness)
140{
141 lcd_remote_set_drawmode(mode);
142 lcd_remote_set_foreground(fg_brightness);
143 lcd_remote_set_background(bg_brightness);
144}
145
146int lcd_remote_getwidth(void)
147{
148 return current_vp->width;
149}
150
151int lcd_remote_getheight(void)
152{
153 return current_vp->height;
154}
155
156void lcd_remote_setmargins(int x, int y)
157{
158 current_vp->xmargin = x;
159 current_vp->ymargin = y;
160}
161
162int lcd_remote_getxmargin(void)
163{
164 return current_vp->xmargin;
165}
166
167int lcd_remote_getymargin(void)
168{
169 return current_vp->ymargin;
170}
171
172void lcd_remote_setfont(int newfont)
173{
174 current_vp->font = newfont;
175}
176
177int lcd_remote_getfont(void)
178{
179 return current_vp->font;
180}
181
182int lcd_remote_getstringsize(const unsigned char *str, int *w, int *h)
183{
184 return font_getstringsize(str, w, h, current_vp->font);
185}
186
187/*** low-level drawing functions ***/
188
189static void setpixel(int x, int y)
190{
191 unsigned mask = 0x0101 << (y & 7);
192 fb_remote_data *address = &lcd_remote_framebuffer[y>>3][x];
193 unsigned data = *address;
194
195 *address = data ^ ((data ^ fg_pattern) & mask);
196}
197
198static void clearpixel(int x, int y)
199{
200 unsigned mask = 0x0101 << (y & 7);
201 fb_remote_data *address = &lcd_remote_framebuffer[y>>3][x];
202 unsigned data = *address;
203
204 *address = data ^ ((data ^ bg_pattern) & mask);
205}
206
207static void clearimgpixel(int x, int y)
208{
209 unsigned mask = 0x0101 << (y & 7);
210 fb_remote_data *address = &lcd_remote_framebuffer[y>>3][x];
211 unsigned data = *address;
212
213 *address = data ^ ((data ^ *(fb_remote_data *)((long)address
214 + remote_backdrop_offset)) & mask);
215}
216
217static void flippixel(int x, int y)
218{
219 unsigned mask = 0x0101 << (y & 7);
220 fb_remote_data *address = &lcd_remote_framebuffer[y>>3][x];
221
222 *address ^= mask;
223}
224
225static void nopixel(int x, int y)
226{
227 (void)x;
228 (void)y;
229}
230
231lcd_remote_pixelfunc_type* const lcd_remote_pixelfuncs_bgcolor[8] = {
232 flippixel, nopixel, setpixel, setpixel,
233 nopixel, clearpixel, nopixel, clearpixel
234};
235
236lcd_remote_pixelfunc_type* const lcd_remote_pixelfuncs_backdrop[8] = {
237 flippixel, nopixel, setpixel, setpixel,
238 nopixel, clearimgpixel, nopixel, clearimgpixel
239};
240
241lcd_remote_pixelfunc_type* const *lcd_remote_pixelfuncs = lcd_remote_pixelfuncs_bgcolor;
242
243/* 'mask' and 'bits' contain 2 bits per pixel */
244static void flipblock(fb_remote_data *address, unsigned mask, unsigned bits)
245 ICODE_ATTR;
246static void flipblock(fb_remote_data *address, unsigned mask, unsigned bits)
247{
248 *address ^= bits & mask;
249}
250
251static void bgblock(fb_remote_data *address, unsigned mask, unsigned bits)
252 ICODE_ATTR;
253static void bgblock(fb_remote_data *address, unsigned mask, unsigned bits)
254{
255 unsigned data = *address;
256
257 *address = data ^ ((data ^ bg_pattern) & mask & ~bits);
258}
259
260static void bgimgblock(fb_remote_data *address, unsigned mask, unsigned bits)
261 ICODE_ATTR;
262static void bgimgblock(fb_remote_data *address, unsigned mask, unsigned bits)
263{
264 unsigned data = *address;
265
266 *address = data ^ ((data ^ *(fb_remote_data *)((long)address
267 + remote_backdrop_offset)) & mask & ~bits);
268}
269
270static void fgblock(fb_remote_data *address, unsigned mask, unsigned bits)
271 ICODE_ATTR;
272static void fgblock(fb_remote_data *address, unsigned mask, unsigned bits)
273{
274 unsigned data = *address;
275
276 *address = data ^ ((data ^ fg_pattern) & mask & bits);
277}
278
279static void solidblock(fb_remote_data *address, unsigned mask, unsigned bits)
280 ICODE_ATTR;
281static void solidblock(fb_remote_data *address, unsigned mask, unsigned bits)
282{
283 unsigned data = *address;
284 unsigned bgp = bg_pattern;
285
286 bits = bgp ^ ((bgp ^ fg_pattern) & bits);
287 *address = data ^ ((data ^ bits) & mask);
288}
289
290static void solidimgblock(fb_remote_data *address, unsigned mask, unsigned bits)
291 ICODE_ATTR;
292static void solidimgblock(fb_remote_data *address, unsigned mask, unsigned bits)
293{
294 unsigned data = *address;
295 unsigned bgp = *(fb_remote_data *)((long)address + remote_backdrop_offset);
296
297 bits = bgp ^ ((bgp ^ fg_pattern) & bits);
298 *address = data ^ ((data ^ bits) & mask);
299}
300
301static void flipinvblock(fb_remote_data *address, unsigned mask, unsigned bits)
302 ICODE_ATTR;
303static void flipinvblock(fb_remote_data *address, unsigned mask, unsigned bits)
304{
305 *address ^= ~bits & mask;
306}
307
308static void bginvblock(fb_remote_data *address, unsigned mask, unsigned bits)
309 ICODE_ATTR;
310static void bginvblock(fb_remote_data *address, unsigned mask, unsigned bits)
311{
312 unsigned data = *address;
313
314 *address = data ^ ((data ^ bg_pattern) & mask & bits);
315}
316
317static void bgimginvblock(fb_remote_data *address, unsigned mask, unsigned bits)
318 ICODE_ATTR;
319static void bgimginvblock(fb_remote_data *address, unsigned mask, unsigned bits)
320{
321 unsigned data = *address;
322
323 *address = data ^ ((data ^ *(fb_remote_data *)((long)address
324 + remote_backdrop_offset)) & mask & bits);
325}
326
327static void fginvblock(fb_remote_data *address, unsigned mask, unsigned bits)
328 ICODE_ATTR;
329static void fginvblock(fb_remote_data *address, unsigned mask, unsigned bits)
330{
331 unsigned data = *address;
332
333 *address = data ^ ((data ^ fg_pattern) & mask & ~bits);
334}
335
336static void solidinvblock(fb_remote_data *address, unsigned mask, unsigned bits)
337 ICODE_ATTR;
338static void solidinvblock(fb_remote_data *address, unsigned mask, unsigned bits)
339{
340 unsigned data = *address;
341 unsigned fgp = fg_pattern;
342
343 bits = fgp ^ ((fgp ^ bg_pattern) & bits);
344 *address = data ^ ((data ^ bits) & mask);
345}
346
347static void solidimginvblock(fb_remote_data *address, unsigned mask, unsigned bits)
348 ICODE_ATTR;
349static void solidimginvblock(fb_remote_data *address, unsigned mask, unsigned bits)
350{
351 unsigned data = *address;
352 unsigned fgp = fg_pattern;
353
354 bits = fgp ^ ((fgp ^ *(fb_remote_data *)((long)address
355 + remote_backdrop_offset)) & bits);
356 *address = data ^ ((data ^ bits) & mask);
357}
358
359lcd_remote_blockfunc_type* const lcd_remote_blockfuncs_bgcolor[8] = {
360 flipblock, bgblock, fgblock, solidblock,
361 flipinvblock, bginvblock, fginvblock, solidinvblock
362};
363
364lcd_remote_blockfunc_type* const lcd_remote_blockfuncs_backdrop[8] = {
365 flipblock, bgimgblock, fgblock, solidimgblock,
366 flipinvblock, bgimginvblock, fginvblock, solidimginvblock
367};
368
369lcd_remote_blockfunc_type* const *lcd_remote_blockfuncs = lcd_remote_blockfuncs_bgcolor;
370
371
372void lcd_remote_set_backdrop(fb_remote_data* backdrop)
373{
374 remote_backdrop = backdrop;
375 if (backdrop)
376 {
377 remote_backdrop_offset = (long)backdrop - (long)lcd_remote_framebuffer;
378 lcd_remote_pixelfuncs = lcd_remote_pixelfuncs_backdrop;
379 lcd_remote_blockfuncs = lcd_remote_blockfuncs_backdrop;
380 }
381 else
382 {
383 remote_backdrop_offset = 0;
384 lcd_remote_pixelfuncs = lcd_remote_pixelfuncs_bgcolor;
385 lcd_remote_blockfuncs = lcd_remote_blockfuncs_bgcolor;
386 }
387}
388
389fb_remote_data* lcd_remote_get_backdrop(void)
390{
391 return remote_backdrop;
392}
393
394static inline void setblock(fb_remote_data *address, unsigned mask, unsigned bits)
395{
396 unsigned data = *address;
397
398 bits ^= data;
399 *address = data ^ (bits & mask);
400}
401
402/*** drawing functions ***/
403
404/* Clear the whole display */
405void lcd_remote_clear_display(void)
406{
407 if (default_vp.drawmode & DRMODE_INVERSEVID)
408 {
409 memset(lcd_remote_framebuffer, patterns[default_vp.fg_pattern & 3],
410 sizeof lcd_remote_framebuffer);
411 }
412 else
413 {
414 if (remote_backdrop)
415 memcpy(lcd_remote_framebuffer, remote_backdrop,
416 sizeof lcd_remote_framebuffer);
417 else
418 memset(lcd_remote_framebuffer, patterns[default_vp.bg_pattern & 3],
419 sizeof lcd_remote_framebuffer);
420 }
421
422 lcd_remote_scroll_info.lines = 0;
423}
424
425/* Clear the current viewport */
426void lcd_remote_clear_viewport(void)
427{
428 int lastmode;
429
430 if (current_vp == &default_vp)
431 {
432 lcd_remote_clear_display();
433 }
434 else
435 {
436 lastmode = current_vp->drawmode;
437
438 /* Invert the INVERSEVID bit and set basic mode to SOLID */
439 current_vp->drawmode = (~lastmode & DRMODE_INVERSEVID) |
440 DRMODE_SOLID;
441
442 lcd_remote_fillrect(0, 0, current_vp->width, current_vp->height);
443
444 current_vp->drawmode = lastmode;
445
446 lcd_remote_scroll_stop(current_vp);
447 }
448}
449
450/* Set a single pixel */
451void lcd_remote_drawpixel(int x, int y)
452{
453 if (((unsigned)x < (unsigned)current_vp->width) &&
454 ((unsigned)y < (unsigned)current_vp->height))
455 lcd_remote_pixelfuncs[current_vp->drawmode](current_vp->x+x, current_vp->y+y);
456}
457
458/* Draw a line */
459void lcd_remote_drawline(int x1, int y1, int x2, int y2)
460{
461 int numpixels;
462 int i;
463 int deltax, deltay;
464 int d, dinc1, dinc2;
465 int x, xinc1, xinc2;
466 int y, yinc1, yinc2;
467 lcd_remote_pixelfunc_type *pfunc = lcd_remote_pixelfuncs[current_vp->drawmode];
468
469 deltax = abs(x2 - x1);
470 deltay = abs(y2 - y1);
471 xinc2 = 1;
472 yinc2 = 1;
473
474 if (deltax >= deltay)
475 {
476 numpixels = deltax;
477 d = 2 * deltay - deltax;
478 dinc1 = deltay * 2;
479 dinc2 = (deltay - deltax) * 2;
480 xinc1 = 1;
481 yinc1 = 0;
482 }
483 else
484 {
485 numpixels = deltay;
486 d = 2 * deltax - deltay;
487 dinc1 = deltax * 2;
488 dinc2 = (deltax - deltay) * 2;
489 xinc1 = 0;
490 yinc1 = 1;
491 }
492 numpixels++; /* include endpoints */
493
494 if (x1 > x2)
495 {
496 xinc1 = -xinc1;
497 xinc2 = -xinc2;
498 }
499
500 if (y1 > y2)
501 {
502 yinc1 = -yinc1;
503 yinc2 = -yinc2;
504 }
505
506 x = x1;
507 y = y1;
508
509 for (i = 0; i < numpixels; i++)
510 {
511 if (((unsigned)x < (unsigned)current_vp->width) &&
512 ((unsigned)y < (unsigned)current_vp->height))
513 pfunc(current_vp->x + x, current_vp->y + y);
514
515 if (d < 0)
516 {
517 d += dinc1;
518 x += xinc1;
519 y += yinc1;
520 }
521 else
522 {
523 d += dinc2;
524 x += xinc2;
525 y += yinc2;
526 }
527 }
528}
529
530/* Draw a horizontal line (optimised) */
531void lcd_remote_hline(int x1, int x2, int y)
532{
533 int x;
534 int width;
535 fb_remote_data *dst, *dst_end;
536 unsigned mask;
537 lcd_remote_blockfunc_type *bfunc;
538
539 /* direction flip */
540 if (x2 < x1)
541 {
542 x = x1;
543 x1 = x2;
544 x2 = x;
545 }
546
547 /* nothing to draw? */
548 if (((unsigned)y >= (unsigned)current_vp->height) || (x1 >= current_vp->width)
549 || (x2 < 0))
550 return;
551
552 /* clipping */
553 if (x1 < 0)
554 x1 = 0;
555 if (x2 >= current_vp->width)
556 x2 = current_vp->width-1;
557
558 width = x2 - x1 + 1;
559
560 /* adjust x1 and y to viewport */
561 x1 += current_vp->x;
562 y += current_vp->y;
563
564 bfunc = lcd_remote_blockfuncs[current_vp->drawmode];
565 dst = &lcd_remote_framebuffer[y>>3][x1];
566 mask = 0x0101 << (y & 7);
567
568 dst_end = dst + width;
569 do
570 bfunc(dst++, mask, 0xFFFFu);
571 while (dst < dst_end);
572}
573
574/* Draw a vertical line (optimised) */
575void lcd_remote_vline(int x, int y1, int y2)
576{
577 int ny;
578 fb_remote_data *dst;
579 unsigned mask, mask_bottom;
580 lcd_remote_blockfunc_type *bfunc;
581
582 /* direction flip */
583 if (y2 < y1)
584 {
585 ny = y1;
586 y1 = y2;
587 y2 = ny;
588 }
589 21
590 /* nothing to draw? */ 22#include "lcd-remote.h"
591 if (((unsigned)x >= (unsigned)current_vp->width) || (y1 >= current_vp->height)
592 || (y2 < 0))
593 return;
594
595 /* clipping */
596 if (y1 < 0)
597 y1 = 0;
598 if (y2 >= current_vp->height)
599 y2 = current_vp->height-1;
600
601 /* adjust for viewport */
602 y1 += current_vp->y;
603 y2 += current_vp->y;
604 x += current_vp->x;
605
606 bfunc = lcd_remote_blockfuncs[current_vp->drawmode];
607 dst = &lcd_remote_framebuffer[y1>>3][x];
608 ny = y2 - (y1 & ~7);
609 mask = (0xFFu << (y1 & 7)) & 0xFFu;
610 mask |= mask << 8;
611 mask_bottom = 0xFFu >> (~ny & 7);
612 mask_bottom |= mask_bottom << 8;
613
614 for (; ny >= 8; ny -= 8)
615 {
616 bfunc(dst, mask, 0xFFFFu);
617 dst += LCD_REMOTE_WIDTH;
618 mask = 0xFFFFu;
619 }
620 mask &= mask_bottom;
621 bfunc(dst, mask, 0xFFFFu);
622}
623
624/* Draw a rectangular box */
625void lcd_remote_drawrect(int x, int y, int width, int height)
626{
627 if ((width <= 0) || (height <= 0))
628 return;
629
630 int x2 = x + width - 1;
631 int y2 = y + height - 1;
632
633 lcd_remote_vline(x, y, y2);
634 lcd_remote_vline(x2, y, y2);
635 lcd_remote_hline(x, x2, y);
636 lcd_remote_hline(x, x2, y2);
637}
638
639/* Fill a rectangular area */
640void lcd_remote_fillrect(int x, int y, int width, int height)
641{
642 int ny;
643 fb_remote_data *dst, *dst_end;
644 unsigned mask, mask_bottom;
645 unsigned bits = 0;
646 lcd_remote_blockfunc_type *bfunc;
647 bool fillopt = false;
648
649 /* nothing to draw? */
650 if ((width <= 0) || (height <= 0) || (x >= current_vp->width)
651 || (y >= current_vp->height) || (x + width <= 0) || (y + height <= 0))
652 return;
653
654 /* clipping */
655 if (x < 0)
656 {
657 width += x;
658 x = 0;
659 }
660 if (y < 0)
661 {
662 height += y;
663 y = 0;
664 }
665 if (x + width > current_vp->width)
666 width = current_vp->width - x;
667 if (y + height > current_vp->height)
668 height = current_vp->height - y;
669
670 /* adjust for viewport */
671 x += current_vp->x;
672 y += current_vp->y;
673
674 if (current_vp->drawmode & DRMODE_INVERSEVID)
675 {
676 if ((current_vp->drawmode & DRMODE_BG) && !remote_backdrop)
677 {
678 fillopt = true;
679 bits = bg_pattern;
680 }
681 }
682 else
683 {
684 if (current_vp->drawmode & DRMODE_FG)
685 {
686 fillopt = true;
687 bits = fg_pattern;
688 }
689 }
690 bfunc = lcd_remote_blockfuncs[current_vp->drawmode];
691 dst = &lcd_remote_framebuffer[y>>3][x];
692 ny = height - 1 + (y & 7);
693 mask = (0xFFu << (y & 7)) & 0xFFu;
694 mask |= mask << 8;
695 mask_bottom = 0xFFu >> (~ny & 7);
696 mask_bottom |= mask_bottom << 8;
697
698 for (; ny >= 8; ny -= 8)
699 {
700 if (fillopt && (mask == 0xFFFFu))
701 memset16(dst, bits, width);
702 else
703 {
704 fb_remote_data *dst_row = dst;
705
706 dst_end = dst_row + width;
707 do
708 bfunc(dst_row++, mask, 0xFFFFu);
709 while (dst_row < dst_end);
710 }
711
712 dst += LCD_REMOTE_WIDTH;
713 mask = 0xFFFFu;
714 }
715 mask &= mask_bottom;
716
717 if (fillopt && (mask == 0xFFFFu))
718 memset16(dst, bits, width);
719 else
720 {
721 dst_end = dst + width;
722 do
723 bfunc(dst++, mask, 0xFFFFu);
724 while (dst < dst_end);
725 }
726}
727
728/* About Rockbox' internal monochrome bitmap format:
729 *
730 * A bitmap contains one bit for every pixel that defines if that pixel is
731 * black (1) or white (0). Bits within a byte are arranged vertically, LSB
732 * at top.
733 * The bytes are stored in row-major order, with byte 0 being top left,
734 * byte 1 2nd from left etc. The first row of bytes defines pixel rows
735 * 0..7, the second row defines pixel row 8..15 etc.
736 *
737 * This is similar to the internal lcd hw format. */
738
739/* Draw a partial monochrome bitmap */
740void lcd_remote_mono_bitmap_part(const unsigned char *src, int src_x, int src_y,
741 int stride, int x, int y, int width, int height)
742 ICODE_ATTR;
743void lcd_remote_mono_bitmap_part(const unsigned char *src, int src_x, int src_y,
744 int stride, int x, int y, int width, int height)
745{
746 int shift, ny;
747 fb_remote_data *dst, *dst_end;
748 unsigned data, mask, mask_bottom;
749 lcd_remote_blockfunc_type *bfunc;
750
751 /* nothing to draw? */
752 if ((width <= 0) || (height <= 0) || (x >= current_vp->width) ||
753 (y >= current_vp->height) || (x + width <= 0) || (y + height <= 0))
754 return;
755
756 /* clipping */
757 if (x < 0)
758 {
759 width += x;
760 src_x -= x;
761 x = 0;
762 }
763 if (y < 0)
764 {
765 height += y;
766 src_y -= y;
767 y = 0;
768 }
769 if (x + width > current_vp->width)
770 width = current_vp->width - x;
771 if (y + height > current_vp->height)
772 height = current_vp->height - y;
773
774 /* adjust for viewport */
775 x += current_vp->x;
776 y += current_vp->y;
777
778 src += stride * (src_y >> 3) + src_x; /* move starting point */
779 src_y &= 7;
780 y -= src_y;
781 dst = &lcd_remote_framebuffer[y>>3][x];
782 shift = y & 7;
783 ny = height - 1 + shift + src_y;
784
785 bfunc = lcd_remote_blockfuncs[current_vp->drawmode];
786 mask = 0xFFu << (shift + src_y);
787 /* not byte-doubled here because shift+src_y can be > 7 */
788 mask_bottom = 0xFFu >> (~ny & 7);
789 mask_bottom |= mask_bottom << 8;
790
791 if (shift == 0)
792 {
793 mask &= 0xFFu;
794 mask |= mask << 8;
795
796 for (; ny >= 8; ny -= 8)
797 {
798 const unsigned char *src_row = src;
799 fb_remote_data *dst_row = dst;
800
801 dst_end = dst_row + width;
802 do
803 {
804 data = *src_row++;
805 bfunc(dst_row++, mask, data | (data << 8));
806 }
807 while (dst_row < dst_end);
808
809 src += stride;
810 dst += LCD_REMOTE_WIDTH;
811 mask = 0xFFFFu;
812 }
813 mask &= mask_bottom;
814
815 dst_end = dst + width;
816 do
817 {
818 data = *src++;
819 bfunc(dst++, mask, data | (data << 8));
820 }
821 while (dst < dst_end);
822 }
823 else
824 {
825 unsigned ddata;
826
827 dst_end = dst + width;
828 do
829 {
830 const unsigned char *src_col = src++;
831 fb_remote_data *dst_col = dst++;
832 unsigned mask_col = mask & 0xFFu;
833
834 mask_col |= mask_col << 8;
835 data = 0;
836
837 for (y = ny; y >= 8; y -= 8)
838 {
839 data |= *src_col << shift;
840
841 if (mask_col)
842 {
843 ddata = data & 0xFFu;
844 bfunc(dst_col, mask_col, ddata | (ddata << 8));
845 mask_col = 0xFFFFu;
846 }
847 else
848 {
849 mask_col = (mask >> 8) & 0xFFu;
850 mask_col |= mask_col << 8;
851 }
852
853 src_col += stride;
854 dst_col += LCD_REMOTE_WIDTH;
855 data >>= 8;
856 }
857 data |= *src_col << shift;
858 mask_col &= mask_bottom;
859 ddata = data & 0xFFu;
860 bfunc(dst_col, mask_col, ddata | (ddata << 8));
861 }
862 while (dst < dst_end);
863 }
864}
865
866/* Draw a full monochrome bitmap */
867void lcd_remote_mono_bitmap(const unsigned char *src, int x, int y, int width,
868 int height)
869{
870 lcd_remote_mono_bitmap_part(src, 0, 0, width, x, y, width, height);
871}
872
873/* About Rockbox' internal native bitmap format:
874 *
875 * A bitmap contains one bit in each byte of a pair of bytes for every pixel.
876 * 00 = white, 01 = light grey, 10 = dark grey, 11 = black. Bits within a byte
877 * are arranged vertically, LSB at top.
878 * The pairs of bytes are stored as shorts, in row-major order, with word 0
879 * being top left, word 1 2nd from left etc. The first row of words defines
880 * pixel rows 0..7, the second row defines pixel row 8..15 etc.
881 *
882 * This is the same as the internal lcd hw format. */
883
884/* Draw a partial native bitmap */
885void lcd_remote_bitmap_part(const fb_remote_data *src, int src_x, int src_y,
886 int stride, int x, int y, int width, int height)
887 ICODE_ATTR;
888void lcd_remote_bitmap_part(const fb_remote_data *src, int src_x, int src_y,
889 int stride, int x, int y, int width, int height)
890{
891 int shift, ny;
892 fb_remote_data *dst, *dst_end;
893 unsigned mask, mask_bottom;
894
895 /* nothing to draw? */
896 if ((width <= 0) || (height <= 0) || (x >= current_vp->width)
897 || (y >= current_vp->height) || (x + width <= 0) || (y + height <= 0))
898 return;
899
900 /* clipping */
901 if (x < 0)
902 {
903 width += x;
904 src_x -= x;
905 x = 0;
906 }
907 if (y < 0)
908 {
909 height += y;
910 src_y -= y;
911 y = 0;
912 }
913 if (x + width > current_vp->width)
914 width = current_vp->width - x;
915 if (y + height > current_vp->height)
916 height = current_vp->height - y;
917
918 /* adjust for viewport */
919 x += current_vp->x;
920 y += current_vp->y;
921
922 src += stride * (src_y >> 3) + src_x; /* move starting point */
923 src_y &= 7;
924 y -= src_y;
925 dst = &lcd_remote_framebuffer[y>>3][x];
926 shift = y & 7;
927 ny = height - 1 + shift + src_y;
928
929 mask = 0xFFu << (shift + src_y);
930 /* not byte-doubled here because shift+src_y can be > 7 */
931 mask_bottom = 0xFFu >> (~ny & 7);
932 mask_bottom |= mask_bottom << 8;
933
934 if (shift == 0)
935 {
936 mask &= 0xFFu;
937 mask |= mask << 8;
938
939 for (; ny >= 8; ny -= 8)
940 {
941 if (mask == 0xFFFFu)
942 memcpy(dst, src, width * sizeof(fb_remote_data));
943 else
944 {
945 const fb_remote_data *src_row = src;
946 fb_remote_data *dst_row = dst;
947
948 dst_end = dst_row + width;
949 do
950 setblock(dst_row++, mask, *src_row++);
951 while (dst_row < dst_end);
952 }
953 src += stride;
954 dst += LCD_REMOTE_WIDTH;
955 mask = 0xFFFFu;
956 }
957 mask &= mask_bottom;
958
959 if (mask == 0xFFFFu)
960 memcpy(dst, src, width * sizeof(fb_remote_data));
961 else
962 {
963 dst_end = dst + width;
964 do
965 setblock(dst++, mask, *src++);
966 while (dst < dst_end);
967 }
968 }
969 else
970 {
971 unsigned datamask = (0xFFu << shift) & 0xFFu;
972
973 datamask |= datamask << 8;
974
975 dst_end = dst + width;
976 do
977 {
978 const fb_remote_data *src_col = src++;
979 fb_remote_data *dst_col = dst++;
980 unsigned mask_col = mask & 0xFFu;
981 unsigned data, olddata = 0;
982
983 mask_col |= mask_col << 8;
984
985 for (y = ny; y >= 8; y -= 8)
986 {
987 data = *src_col << shift;
988
989 if (mask_col)
990 {
991 setblock(dst_col, mask_col,
992 olddata ^((olddata ^ data) & datamask));
993 mask_col = 0xFFFFu;
994 }
995 else
996 {
997 mask_col = (mask << 8) & 0xFFu;
998 mask_col |= mask_col << 8;
999 }
1000 src_col += stride;
1001 dst_col += LCD_REMOTE_WIDTH;
1002 olddata = data >> 8;
1003 }
1004 data = *src_col << shift;
1005 setblock(dst_col, mask_col & mask_bottom,
1006 olddata ^((olddata ^ data) & datamask));
1007 }
1008 while (dst < dst_end);
1009 }
1010}
1011
1012/* Draw a full native bitmap */
1013void lcd_remote_bitmap(const fb_remote_data *src, int x, int y, int width,
1014 int height)
1015{
1016 lcd_remote_bitmap_part(src, 0, 0, width, x, y, width, height);
1017}
1018
1019/* put a string at a given pixel position, skipping first ofs pixel columns */
1020void lcd_remote_putsxyofs(int x, int y, int ofs, const unsigned char *str)
1021{
1022 unsigned short ch;
1023 unsigned short *ucs;
1024 struct font* pf = font_get(current_vp->font);
1025
1026 ucs = bidi_l2v(str, 1);
1027
1028 while ((ch = *ucs++) != 0 && x < current_vp->width)
1029 {
1030 int width;
1031 const unsigned char *bits;
1032
1033 /* get proportional width and glyph bits */
1034 width = font_get_width(pf, ch);
1035
1036 if (ofs > width)
1037 {
1038 ofs -= width;
1039 continue;
1040 }
1041
1042 bits = font_get_bits(pf, ch);
1043
1044 lcd_remote_mono_bitmap_part(bits, ofs, 0, width, x, y, width - ofs,
1045 pf->height);
1046
1047 x += width - ofs;
1048 ofs = 0;
1049 }
1050}
1051
1052/* put a string at a given pixel position */
1053void lcd_remote_putsxy(int x, int y, const unsigned char *str)
1054{
1055 lcd_remote_putsxyofs(x, y, 0, str);
1056}
1057
1058/*** line oriented text output ***/
1059
1060/* put a string at a given char position */
1061void lcd_remote_puts(int x, int y, const unsigned char *str)
1062{
1063 lcd_remote_puts_style_offset(x, y, str, STYLE_DEFAULT, 0);
1064}
1065
1066void lcd_remote_puts_style(int x, int y, const unsigned char *str, int style)
1067{
1068 lcd_remote_puts_style_offset(x, y, str, style, 0);
1069}
1070
1071void lcd_remote_puts_offset(int x, int y, const unsigned char *str, int offset)
1072{
1073 lcd_remote_puts_style_offset(x, y, str, STYLE_DEFAULT, offset);
1074}
1075
1076/* put a string at a given char position, style, and pixel position,
1077 * skipping first offset pixel columns */
1078void lcd_remote_puts_style_offset(int x, int y, const unsigned char *str,
1079 int style, int offset)
1080{
1081 int xpos,ypos,w,h,xrect;
1082 int lastmode = current_vp->drawmode;
1083
1084 /* make sure scrolling is turned off on the line we are updating */
1085 lcd_remote_scroll_stop_line(current_vp, y);
1086
1087 if(!str || !str[0])
1088 return;
1089
1090 lcd_remote_getstringsize(str, &w, &h);
1091 xpos = current_vp->xmargin + x*w / utf8length((char *)str);
1092 ypos = current_vp->ymargin + y*h;
1093 current_vp->drawmode = (style & STYLE_INVERT) ?
1094 (DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
1095 lcd_remote_putsxyofs(xpos, ypos, offset, str);
1096 current_vp->drawmode ^= DRMODE_INVERSEVID;
1097 xrect = xpos + MAX(w - offset, 0);
1098 lcd_remote_fillrect(xrect, ypos, current_vp->width - xrect, h);
1099 current_vp->drawmode = lastmode;
1100}
1101
1102/*** scrolling ***/
1103void lcd_remote_puts_scroll(int x, int y, const unsigned char *string)
1104{
1105 lcd_remote_puts_scroll_style(x, y, string, STYLE_DEFAULT);
1106}
1107
1108void lcd_remote_puts_scroll_style(int x, int y, const unsigned char *string, int style)
1109{
1110 lcd_remote_puts_scroll_style_offset(x, y, string, style, 0);
1111}
1112
1113void lcd_remote_puts_scroll_offset(int x, int y, const unsigned char *string, int offset)
1114{
1115 lcd_remote_puts_scroll_style_offset(x, y, string, STYLE_DEFAULT, offset);
1116}
1117
1118void lcd_remote_puts_scroll_style_offset(int x, int y, const unsigned char *string,
1119 int style, int offset)
1120{
1121 struct scrollinfo* s;
1122 int w, h;
1123
1124 if ((unsigned)y >= (unsigned)current_vp->height)
1125 return;
1126
1127 /* remove any previously scrolling line at the same location */
1128 lcd_remote_scroll_stop_line(current_vp, y);
1129
1130 if (lcd_remote_scroll_info.lines >= LCD_REMOTE_SCROLLABLE_LINES) return;
1131
1132 s = &lcd_remote_scroll_info.scroll[lcd_remote_scroll_info.lines];
1133
1134 s->start_tick = current_tick + lcd_remote_scroll_info.delay;
1135 s->style = style;
1136 if (style & STYLE_INVERT) {
1137 lcd_remote_puts_style_offset(x,y,string,STYLE_INVERT,offset);
1138 }
1139 else
1140 lcd_remote_puts_offset(x,y,string,offset);
1141
1142 lcd_remote_getstringsize(string, &w, &h);
1143
1144 if (current_vp->width - x * 8 - current_vp->xmargin < w) {
1145 /* prepare scroll line */
1146 char *end;
1147
1148 memset(s->line, 0, sizeof s->line);
1149 strcpy(s->line, (char *)string);
1150
1151 /* get width */
1152 s->width = lcd_remote_getstringsize((unsigned char *)s->line, &w, &h);
1153
1154 /* scroll bidirectional or forward only depending on the string
1155 width */
1156 if ( lcd_remote_scroll_info.bidir_limit ) {
1157 s->bidir = s->width < (current_vp->width - current_vp->xmargin) *
1158 (100 + lcd_remote_scroll_info.bidir_limit) / 100;
1159 }
1160 else
1161 s->bidir = false;
1162
1163 if (!s->bidir) { /* add spaces if scrolling in the round */
1164 strcat(s->line, " ");
1165 /* get new width incl. spaces */
1166 s->width = lcd_remote_getstringsize((unsigned char *)s->line, &w, &h);
1167 }
1168
1169 end = strchr(s->line, '\0');
1170 strncpy(end, (char *)string, current_vp->width/2);
1171
1172 s->vp = current_vp;
1173 s->y = y;
1174 s->len = utf8length((char *)string);
1175 s->offset = offset;
1176 s->startx = current_vp->xmargin + x * s->width / s->len;
1177 s->backward = false;
1178
1179 lcd_remote_scroll_info.lines++;
1180 }
1181}
1182
1183void lcd_remote_scroll_fn(void)
1184{
1185 struct font* pf;
1186 struct scrollinfo* s;
1187 int index;
1188 int xpos, ypos;
1189 int lastmode;
1190 struct viewport* old_vp = current_vp;
1191
1192 for ( index = 0; index < lcd_remote_scroll_info.lines; index++ ) {
1193 s = &lcd_remote_scroll_info.scroll[index];
1194
1195 /* check pause */
1196 if (TIME_BEFORE(current_tick, s->start_tick))
1197 continue;
1198
1199 lcd_remote_set_viewport(s->vp);
1200
1201 if (s->backward)
1202 s->offset -= lcd_remote_scroll_info.step;
1203 else
1204 s->offset += lcd_remote_scroll_info.step;
1205
1206 pf = font_get(current_vp->font);
1207 xpos = s->startx;
1208 ypos = current_vp->ymargin + s->y * pf->height;
1209
1210 if (s->bidir) { /* scroll bidirectional */
1211 if (s->offset <= 0) {
1212 /* at beginning of line */
1213 s->offset = 0;
1214 s->backward = false;
1215 s->start_tick = current_tick + lcd_remote_scroll_info.delay*2;
1216 }
1217 if (s->offset >= s->width - (current_vp->width - xpos)) {
1218 /* at end of line */
1219 s->offset = s->width - (current_vp->width - xpos);
1220 s->backward = true;
1221 s->start_tick = current_tick + lcd_remote_scroll_info.delay*2;
1222 }
1223 }
1224 else {
1225 /* scroll forward the whole time */
1226 if (s->offset >= s->width)
1227 s->offset %= s->width;
1228 }
1229
1230 lastmode = current_vp->drawmode;
1231 current_vp->drawmode = (s->style&STYLE_INVERT) ?
1232 (DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
1233 lcd_remote_putsxyofs(xpos, ypos, s->offset, s->line);
1234 current_vp->drawmode = lastmode;
1235 lcd_remote_update_viewport_rect(xpos, ypos,
1236 current_vp->width - xpos, pf->height);
1237 }
1238
1239 lcd_remote_set_viewport(old_vp);
1240}
1241 23
1242/* LCD init */ 24/* Compile 2 bit vertical interleaved LCD driver for remote LCD */
1243void lcd_remote_init(void) 25#define LCDFN(fn) lcd_remote_ ## fn
1244{ 26#define FBFN(fn) fb_remote_ ## fn
1245 /* Initialise the viewport */ 27#define LCDM(ma) LCD_REMOTE_ ## ma
1246 lcd_remote_set_viewport(NULL);
1247 28
1248#ifndef SIMULATOR 29#include "lcd-2bit-vi.c"
1249 /* Call device specific init */
1250 lcd_remote_init_device();
1251#endif
1252}
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-24 15:30:37 +0000