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FS#8961 - Anti-Aliased Fonts.
[kugel-rb/myfork.git] / apps / plugins / pictureflow / pictureflow.c
blob52209e60a2ee8a1f9186d8a3781833146341d766
1 /***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2007 Jonas Hurrelmann (j@outpo.st)
11 * Copyright (C) 2007 Nicolas Pennequin
12 * Copyright (C) 2007 Ariya Hidayat (ariya@kde.org) (original Qt Version)
13 *
14 * Original code: http://code.google.com/p/pictureflow/
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License
18 * as published by the Free Software Foundation; either version 2
19 * of the License, or (at your option) any later version.
20 *
21 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
22 * KIND, either express or implied.
23 *
24 ****************************************************************************/
25
26 #include "plugin.h"
27 #include <albumart.h>
28 #include "lib/read_image.h"
29 #include "lib/pluginlib_actions.h"
30 #include "lib/helper.h"
31 #include "lib/configfile.h"
32 #include "lib/grey.h"
33 #include "lib/feature_wrappers.h"
34 #include "lib/buflib.h"
35
36 PLUGIN_HEADER
37
38 /******************************* Globals ***********************************/
39
40 /*
41 * Targets which use plugin_get_audio_buffer() can't have playback from
42 * within pictureflow itself, as the whole core audio buffer is occupied */
43 #define PF_PLAYBACK_CAPABLE (PLUGIN_BUFFER_SIZE > 0x10000)
44
45 #if PF_PLAYBACK_CAPABLE
46 #include "lib/playback_control.h"
47 #endif
48
49 #define PF_PREV ACTION_STD_PREV
50 #define PF_PREV_REPEAT ACTION_STD_PREVREPEAT
51 #define PF_NEXT ACTION_STD_NEXT
52 #define PF_NEXT_REPEAT ACTION_STD_NEXTREPEAT
53 #define PF_SELECT ACTION_STD_OK
54 #define PF_CONTEXT ACTION_STD_CONTEXT
55 #define PF_BACK ACTION_STD_CANCEL
56 #define PF_MENU ACTION_STD_MENU
57 #define PF_WPS ACTION_TREE_WPS
58
59 #define PF_QUIT (LAST_ACTION_PLACEHOLDER + 1)
60
61 #if defined(HAVE_SCROLLWHEEL) || CONFIG_KEYPAD == IRIVER_H10_PAD || \
62 CONFIG_KEYPAD == SAMSUNG_YH_PAD
63 #define USE_CORE_PREVNEXT
64 #endif
65
66 #ifndef USE_CORE_PREVNEXT
67 /* scrollwheel targets use the wheel, just as they do in lists,
68 * so there's no need for a special context,
69 * others use left/right here too (as oppsed to up/down in lists) */
70 const struct button_mapping pf_context_album_scroll[] =
71 {
72 #ifdef HAVE_TOUCHSCREEN
73 {PF_PREV, BUTTON_MIDLEFT, BUTTON_NONE},
74 {PF_PREV_REPEAT, BUTTON_MIDLEFT|BUTTON_REPEAT, BUTTON_NONE},
75 {PF_NEXT, BUTTON_MIDRIGHT, BUTTON_NONE},
76 {PF_NEXT_REPEAT, BUTTON_MIDRIGHT|BUTTON_REPEAT, BUTTON_NONE},
77 #endif
78 #if (CONFIG_KEYPAD == IAUDIO_M3_PAD || CONFIG_KEYPAD == MROBE500_PAD)
79 {PF_PREV, BUTTON_RC_REW, BUTTON_NONE},
80 {PF_PREV_REPEAT, BUTTON_RC_REW|BUTTON_REPEAT,BUTTON_NONE},
81 {PF_NEXT, BUTTON_RC_FF, BUTTON_NONE},
82 {PF_NEXT_REPEAT, BUTTON_RC_FF|BUTTON_REPEAT, BUTTON_NONE},
83 #else
84 {PF_PREV, BUTTON_LEFT, BUTTON_NONE},
85 {PF_PREV_REPEAT, BUTTON_LEFT|BUTTON_REPEAT, BUTTON_NONE},
86 {PF_NEXT, BUTTON_RIGHT, BUTTON_NONE},
87 {PF_NEXT_REPEAT, BUTTON_RIGHT|BUTTON_REPEAT, BUTTON_NONE},
88 {ACTION_NONE, BUTTON_LEFT|BUTTON_REL, BUTTON_LEFT},
89 {ACTION_NONE, BUTTON_RIGHT|BUTTON_REL, BUTTON_RIGHT},
90 {ACTION_NONE, BUTTON_LEFT|BUTTON_REPEAT, BUTTON_LEFT},
91 {ACTION_NONE, BUTTON_RIGHT|BUTTON_REPEAT, BUTTON_RIGHT},
92 #endif
93 #if CONFIG_KEYPAD == ONDIO_PAD
94 {PF_SELECT, BUTTON_UP|BUTTON_REL, BUTTON_UP},
95 {PF_CONTEXT, BUTTON_UP|BUTTON_REPEAT, BUTTON_UP},
96 {ACTION_NONE, BUTTON_UP, BUTTON_NONE},
97 {ACTION_NONE, BUTTON_DOWN, BUTTON_NONE},
98 {ACTION_NONE, BUTTON_DOWN|BUTTON_REPEAT, BUTTON_NONE},
99 #endif
100 LAST_ITEM_IN_LIST__NEXTLIST(CONTEXT_PLUGIN|1)
101 };
102 #endif /* !USE_CORE_PREVNEXT */
103
104 const struct button_mapping pf_context_buttons[] =
105 {
106 #ifdef HAVE_TOUCHSCREEN
107 {PF_SELECT, BUTTON_CENTER, BUTTON_NONE},
108 {PF_MENU, BUTTON_TOPLEFT, BUTTON_NONE},
109 {PF_BACK, BUTTON_BOTTOMRIGHT, BUTTON_NONE},
110 #endif
111 #if CONFIG_KEYPAD == ARCHOS_AV300_PAD
112 {PF_QUIT, BUTTON_OFF, BUTTON_NONE},
113 #elif CONFIG_KEYPAD == SANSA_C100_PAD
114 {PF_QUIT, BUTTON_MENU|BUTTON_REPEAT, BUTTON_MENU},
115 #elif CONFIG_KEYPAD == CREATIVEZV_PAD || CONFIG_KEYPAD == CREATIVEZVM_PAD || \
116 CONFIG_KEYPAD == PHILIPS_HDD1630_PAD || CONFIG_KEYPAD == IAUDIO67_PAD || \
117 CONFIG_KEYPAD == GIGABEAT_PAD || CONFIG_KEYPAD == GIGABEAT_S_PAD || \
118 CONFIG_KEYPAD == MROBE100_PAD || CONFIG_KEYPAD == MROBE500_PAD || \
119 CONFIG_KEYPAD == PHILIPS_SA9200_PAD || CONFIG_KEYPAD == SANSA_CLIP_PAD
120 {PF_QUIT, BUTTON_POWER, BUTTON_NONE},
121 #elif CONFIG_KEYPAD == SANSA_FUZE_PAD
122 {PF_QUIT, BUTTON_HOME|BUTTON_REPEAT, BUTTON_NONE},
123 /* These all use short press of BUTTON_POWER for menu, map long POWER to quit
124 */
125 #elif CONFIG_KEYPAD == SANSA_C200_PAD || CONFIG_KEYPAD == SANSA_M200_PAD || \
126 CONFIG_KEYPAD == IRIVER_H10_PAD || CONFIG_KEYPAD == COWOND2_PAD
127 {PF_QUIT, BUTTON_POWER|BUTTON_REPEAT, BUTTON_POWER},
128 #if CONFIG_KEYPAD == COWOND2_PAD
129 {PF_BACK, BUTTON_POWER|BUTTON_REL, BUTTON_POWER},
130 {ACTION_NONE, BUTTON_POWER, BUTTON_NONE},
131 #endif
132 #elif CONFIG_KEYPAD == SANSA_E200_PAD
133 {PF_QUIT, BUTTON_POWER, BUTTON_NONE},
134 #elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
135 {PF_QUIT, BUTTON_EQ, BUTTON_NONE},
136 #elif (CONFIG_KEYPAD == IPOD_1G2G_PAD) \
137 || (CONFIG_KEYPAD == IPOD_3G_PAD) \
138 || (CONFIG_KEYPAD == IPOD_4G_PAD)
139 {PF_QUIT, BUTTON_MENU|BUTTON_REPEAT, BUTTON_MENU},
140 #elif CONFIG_KEYPAD == LOGIK_DAX_PAD
141 {PF_QUIT, BUTTON_POWERPLAY|BUTTON_REPEAT, BUTTON_POWERPLAY},
142 #elif CONFIG_KEYPAD == IAUDIO_M3_PAD
143 {PF_QUIT, BUTTON_RC_REC, BUTTON_NONE},
144 #elif CONFIG_KEYPAD == MEIZU_M6SL_PAD
145 {PF_QUIT, BUTTON_MENU|BUTTON_REPEAT, BUTTON_MENU},
146 #elif CONFIG_KEYPAD == IRIVER_H100_PAD || CONFIG_KEYPAD == IRIVER_H300_PAD || \
147 CONFIG_KEYPAD == RECORDER_PAD || CONFIG_KEYPAD == ONDIO_PAD
148 {PF_QUIT, BUTTON_OFF, BUTTON_NONE},
149 #endif
150 #if CONFIG_KEYPAD == IAUDIO_M3_PAD
151 LAST_ITEM_IN_LIST__NEXTLIST(CONTEXT_STD|CONTEXT_REMOTE)
152 #else
153 LAST_ITEM_IN_LIST__NEXTLIST(CONTEXT_TREE)
154 #endif
155 };
156 const struct button_mapping *pf_contexts[] =
157 {
158 #ifndef USE_CORE_PREVNEXT
159 pf_context_album_scroll,
160 #endif
161 pf_context_buttons
162 };
163
164 #if LCD_DEPTH < 8
165 #if LCD_DEPTH > 1
166 #define N_BRIGHT(y) LCD_BRIGHTNESS(y)
167 #else /* LCD_DEPTH <= 1 */
168 #define N_BRIGHT(y) ((y > 127) ? 0 : 1)
169 #ifdef HAVE_NEGATIVE_LCD /* m:robe 100, Clip */
170 #define PICTUREFLOW_DRMODE DRMODE_SOLID
171 #else
172 #define PICTUREFLOW_DRMODE (DRMODE_SOLID|DRMODE_INVERSEVID)
173 #endif
174 #endif /* LCD_DEPTH <= 1 */
175 #define USEGSLIB
176 GREY_INFO_STRUCT
177 #define LCD_BUF _grey_info.buffer
178 #define MYLCD(fn) grey_ ## fn
179 #define G_PIX(r,g,b) \
180 (77 * (unsigned)(r) + 150 * (unsigned)(g) + 29 * (unsigned)(b)) / 256
181 #define N_PIX(r,g,b) N_BRIGHT(G_PIX(r,g,b))
182 #define G_BRIGHT(y) (y)
183 #define BUFFER_WIDTH _grey_info.width
184 #define BUFFER_HEIGHT _grey_info.height
185 typedef unsigned char pix_t;
186 #else /* LCD_DEPTH >= 8 */
187 #define LCD_BUF rb->lcd_framebuffer
188 #define MYLCD(fn) rb->lcd_ ## fn
189 #define G_PIX LCD_RGBPACK
190 #define N_PIX LCD_RGBPACK
191 #define G_BRIGHT(y) LCD_RGBPACK(y,y,y)
192 #define N_BRIGHT(y) LCD_RGBPACK(y,y,y)
193 #define BUFFER_WIDTH LCD_WIDTH
194 #define BUFFER_HEIGHT LCD_HEIGHT
195 typedef fb_data pix_t;
196 #endif /* LCD_DEPTH >= 8 */
197
198 /* for fixed-point arithmetic, we need minimum 32-bit long
199 long long (64-bit) might be useful for multiplication and division */
200 #define PFreal long
201 #define PFREAL_SHIFT 10
202 #define PFREAL_FACTOR (1 << PFREAL_SHIFT)
203 #define PFREAL_ONE (1 << PFREAL_SHIFT)
204 #define PFREAL_HALF (PFREAL_ONE >> 1)
205
206
207 #define IANGLE_MAX 1024
208 #define IANGLE_MASK 1023
209
210 #define REFLECT_TOP (LCD_HEIGHT * 2 / 3)
211 #define REFLECT_HEIGHT (LCD_HEIGHT - REFLECT_TOP)
212 #define DISPLAY_HEIGHT REFLECT_TOP
213 #define DISPLAY_WIDTH MAX((LCD_HEIGHT * LCD_PIXEL_ASPECT_HEIGHT / \
214 LCD_PIXEL_ASPECT_WIDTH / 2), (LCD_WIDTH * 2 / 5))
215 #define REFLECT_SC ((0x10000U * 3 + (REFLECT_HEIGHT * 5 - 1)) / \
216 (REFLECT_HEIGHT * 5))
217 #define DISPLAY_OFFS ((LCD_HEIGHT / 2) - REFLECT_HEIGHT)
218 #define CAM_DIST MAX(MIN(LCD_HEIGHT,LCD_WIDTH),120)
219 #define CAM_DIST_R (CAM_DIST << PFREAL_SHIFT)
220 #define DISPLAY_LEFT_R (PFREAL_HALF - LCD_WIDTH * PFREAL_HALF)
221 #define MAXSLIDE_LEFT_R (PFREAL_HALF - DISPLAY_WIDTH * PFREAL_HALF)
222
223 #define SLIDE_CACHE_SIZE 64 /* probably more than can be loaded */
224
225 #define MAX_SLIDES_COUNT 10
226
227 #define THREAD_STACK_SIZE DEFAULT_STACK_SIZE + 0x200
228 #define CACHE_PREFIX PLUGIN_DEMOS_DIR "/pictureflow"
229
230 #define EV_EXIT 9999
231 #define EV_WAKEUP 1337
232
233 #define EMPTY_SLIDE CACHE_PREFIX "/emptyslide.pfraw"
234 #define EMPTY_SLIDE_BMP PLUGIN_DEMOS_DIR "/pictureflow_emptyslide.bmp"
235 #define SPLASH_BMP PLUGIN_DEMOS_DIR "/pictureflow_splash.bmp"
236
237 /* Error return values */
238 #define ERROR_NO_ALBUMS -1
239 #define ERROR_BUFFER_FULL -2
240
241 /* current version for cover cache */
242 #define CACHE_VERSION 3
243 #define CONFIG_VERSION 1
244 #define CONFIG_FILE "pictureflow.cfg"
245
246 /** structs we use */
247
248 struct slide_data {
249 int slide_index;
250 int angle;
251 PFreal cx;
252 PFreal cy;
253 PFreal distance;
254 };
255
256 struct slide_cache {
257 int index; /* index of the cached slide */
258 int hid; /* handle ID of the cached slide */
259 short next; /* "next" slide, with LRU last */
260 short prev; /* "previous" slide */
261 };
262
263 struct album_data {
264 int name_idx;
265 long seek;
266 };
267
268 struct track_data {
269 uint32_t sort;
270 int name_idx; /* offset to the track name */
271 long seek;
272 #if PF_PLAYBACK_CAPABLE
273 /* offset to the filename in the string, needed for playlist generation */
274 int filename_idx;
275 #endif
276 };
277
278 struct rect {
279 int left;
280 int right;
281 int top;
282 int bottom;
283 };
284
285 struct load_slide_event_data {
286 int slide_index;
287 int cache_index;
288 };
289
290
291 struct pfraw_header {
292 int32_t width; /* bmap width in pixels */
293 int32_t height; /* bmap height in pixels */
294 };
295
296 enum show_album_name_values { album_name_hide = 0, album_name_bottom,
297 album_name_top };
298 static char* show_album_name_conf[] =
299 {
300 "hide",
301 "bottom",
302 "top"
303 };
304
305 #define MAX_SPACING 40
306 #define MAX_MARGIN 80
307
308 /* config values and their defaults */
309 static int slide_spacing = DISPLAY_WIDTH / 4;
310 static int center_margin = (LCD_WIDTH - DISPLAY_WIDTH) / 12;
311 static int num_slides = 4;
312 static int zoom = 100;
313 static bool show_fps = false;
314 static bool resize = true;
315 static int cache_version = 0;
316 static int show_album_name = (LCD_HEIGHT > 100)
317 ? album_name_top : album_name_bottom;
318
319 static struct configdata config[] =
320 {
321 { TYPE_INT, 0, MAX_SPACING, { .int_p = &slide_spacing }, "slide spacing",
322 NULL },
323 { TYPE_INT, 0, MAX_MARGIN, { .int_p = &center_margin }, "center margin",
324 NULL },
325 { TYPE_INT, 0, MAX_SLIDES_COUNT, { .int_p = &num_slides }, "slides count",
326 NULL },
327 { TYPE_INT, 0, 300, { .int_p = &zoom }, "zoom", NULL },
328 { TYPE_BOOL, 0, 1, { .bool_p = &show_fps }, "show fps", NULL },
329 { TYPE_BOOL, 0, 1, { .bool_p = &resize }, "resize", NULL },
330 { TYPE_INT, 0, 100, { .int_p = &cache_version }, "cache version", NULL },
331 { TYPE_ENUM, 0, 2, { .int_p = &show_album_name }, "show album name",
332 show_album_name_conf }
333 };
334
335 #define CONFIG_NUM_ITEMS (sizeof(config) / sizeof(struct configdata))
336
337 /** below we allocate the memory we want to use **/
338
339 static pix_t *buffer; /* for now it always points to the lcd framebuffer */
340 static uint8_t reflect_table[REFLECT_HEIGHT];
341 static struct slide_data center_slide;
342 static struct slide_data left_slides[MAX_SLIDES_COUNT];
343 static struct slide_data right_slides[MAX_SLIDES_COUNT];
344 static int slide_frame;
345 static int step;
346 static int target;
347 static int fade;
348 static int center_index = 0; /* index of the slide that is in the center */
349 static int itilt;
350 static PFreal offsetX;
351 static PFreal offsetY;
352 static int number_of_slides;
353
354 static struct slide_cache cache[SLIDE_CACHE_SIZE];
355 static int cache_free;
356 static int cache_used = -1;
357 static int cache_left_index = -1;
358 static int cache_right_index = -1;
359 static int cache_center_index = -1;
360
361 /* use long for aligning */
362 unsigned long thread_stack[THREAD_STACK_SIZE / sizeof(long)];
363 /* queue (as array) for scheduling load_surface */
364
365 static int empty_slide_hid;
366
367 unsigned int thread_id;
368 struct event_queue thread_q;
369
370 static struct tagcache_search tcs;
371
372 static struct buflib_context buf_ctx;
373
374 static struct album_data *album;
375 static char *album_names;
376 static int album_count;
377
378 static struct track_data *tracks;
379 static char *track_names;
380 static size_t borrowed = 0;
381 static int track_count;
382 static int track_index;
383 static int selected_track;
384 static int selected_track_pulse;
385 void reset_track_list(void);
386
387 void * buf;
388 size_t buf_size;
389
390 static bool thread_is_running;
391
392 static int cover_animation_keyframe;
393 static int extra_fade;
394
395 static int albumtxt_x = 0;
396 static int albumtxt_dir = -1;
397 static int prev_center_index = -1;
398
399 static int start_index_track_list = 0;
400 static int track_list_visible_entries = 0;
401 static int track_list_y;
402 static int track_list_h;
403 static int track_scroll_index = 0;
404 static int track_scroll_dir = 1;
405
406 /*
407 Proposals for transitions:
408
409 pf_idle -> pf_scrolling : NEXT_ALBUM/PREV_ALBUM pressed
410 -> pf_cover_in -> pf_show_tracks : SELECT_ALBUM clicked
411
412 pf_scrolling -> pf_idle : NEXT_ALBUM/PREV_ALBUM released
413
414 pf_show_tracks -> pf_cover_out -> pf_idle : SELECT_ALBUM pressed
415
416 TODO:
417 pf_show_tracks -> pf_cover_out -> pf_idle : MENU_PRESSED pressed
418 pf_show_tracks -> play_track() -> exit() : SELECT_ALBUM pressed
419
420 pf_idle, pf_scrolling -> show_menu(): MENU_PRESSED
421 */
422 enum pf_states {
423 pf_idle = 0,
424 pf_scrolling,
425 pf_cover_in,
426 pf_show_tracks,
427 pf_cover_out
428 };
429
430 static int pf_state;
431
432 /** code */
433 static bool free_slide_prio(int prio);
434 static inline unsigned fade_color(pix_t c, unsigned a);
435 bool save_pfraw(char* filename, struct bitmap *bm);
436 bool load_new_slide(void);
437 int load_surface(int);
438
439 static inline PFreal fmul(PFreal a, PFreal b)
440 {
441 return (a*b) >> PFREAL_SHIFT;
442 }
443
444 /**
445 * This version preshifts each operand, which is useful when we know how many
446 * of the least significant bits will be empty, or are worried about overflow
447 * in a particular calculation
448 */
449 static inline PFreal fmuln(PFreal a, PFreal b, int ps1, int ps2)
450 {
451 return ((a >> ps1) * (b >> ps2)) >> (PFREAL_SHIFT - ps1 - ps2);
452 }
453
454 /* ARMv5+ has a clz instruction equivalent to our function.
455 */
456 #if (defined(CPU_ARM) && (ARM_ARCH > 4))
457 static inline int clz(uint32_t v)
458 {
459 return __builtin_clz(v);
460 }
461
462 /* Otherwise, use our clz, which can be inlined */
463 #elif defined(CPU_COLDFIRE)
464 /* This clz is based on the log2(n) implementation at
465 * http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog
466 * A clz benchmark plugin showed this to be about 14% faster on coldfire
467 * than the LUT-based version.
468 */
469 static inline int clz(uint32_t v)
470 {
471 int r = 32;
472 if (v >= 0x10000)
473 {
474 v >>= 16;
475 r -= 16;
476 }
477 if (v & 0xff00)
478 {
479 v >>= 8;
480 r -= 8;
481 }
482 if (v & 0xf0)
483 {
484 v >>= 4;
485 r -= 4;
486 }
487 if (v & 0xc)
488 {
489 v >>= 2;
490 r -= 2;
491 }
492 if (v & 2)
493 {
494 v >>= 1;
495 r -= 1;
496 }
497 r -= v;
498 return r;
499 }
500 #else
501 static const char clz_lut[16] = { 4, 3, 2, 2, 1, 1, 1, 1,
502 0, 0, 0, 0, 0, 0, 0, 0 };
503 /* This clz is based on the log2(n) implementation at
504 * http://graphics.stanford.edu/~seander/bithacks.html#IntegerLogLookup
505 * It is not any faster than the one above, but trades 16B in the lookup table
506 * for a savings of 12B per each inlined call.
507 */
508 static inline int clz(uint32_t v)
509 {
510 int r = 28;
511 if (v >= 0x10000)
512 {
513 v >>= 16;
514 r -= 16;
515 }
516 if (v & 0xff00)
517 {
518 v >>= 8;
519 r -= 8;
520 }
521 if (v & 0xf0)
522 {
523 v >>= 4;
524 r -= 4;
525 }
526 return r + clz_lut[v];
527 }
528 #endif
529
530 /* Return the maximum possible left shift for a signed int32, without
531 * overflow
532 */
533 static inline int allowed_shift(int32_t val)
534 {
535 uint32_t uval = val ^ (val >> 31);
536 return clz(uval) - 1;
537 }
538
539 /* Calculate num/den, with the result shifted left by PFREAL_SHIFT, by shifting
540 * num and den before dividing.
541 */
542 static inline PFreal fdiv(PFreal num, PFreal den)
543 {
544 int shift = allowed_shift(num);
545 shift = MIN(PFREAL_SHIFT, shift);
546 num <<= shift;
547 den >>= PFREAL_SHIFT - shift;
548 return num / den;
549 }
550
551 #define fmin(a,b) (((a) < (b)) ? (a) : (b))
552 #define fmax(a,b) (((a) > (b)) ? (a) : (b))
553 #define fabs(a) (a < 0 ? -a : a)
554 #define fbound(min,val,max) (fmax((min),fmin((max),(val))))
555
556 #if CONFIG_CPU == SH7034
557 /* 16*16->32 bit multiplication is a single instrcution on the SH1 */
558 #define MULUQ(a, b) ((uint32_t) (((uint16_t) (a)) * ((uint16_t) (b))))
559 #else
560 #define MULUQ(a, b) ((a) * (b))
561 #endif
562
563
564 #if 0
565 #define fmul(a,b) ( ((a)*(b)) >> PFREAL_SHIFT )
566 #define fdiv(n,m) ( ((n)<< PFREAL_SHIFT ) / m )
567
568 #define fconv(a, q1, q2) (((q2)>(q1)) ? (a)<<((q2)-(q1)) : (a)>>((q1)-(q2)))
569 #define tofloat(a, q) ( (float)(a) / (float)(1<<(q)) )
570
571 static inline PFreal fmul(PFreal a, PFreal b)
572 {
573 return (a*b) >> PFREAL_SHIFT;
574 }
575
576 static inline PFreal fdiv(PFreal n, PFreal m)
577 {
578 return (n<<(PFREAL_SHIFT))/m;
579 }
580 #endif
581
582 /* warning: regenerate the table if IANGLE_MAX and PFREAL_SHIFT are changed! */
583 static const short sin_tab[] = {
584 0, 100, 200, 297, 392, 483, 569, 650,
585 724, 792, 851, 903, 946, 980, 1004, 1019,
586 1024, 1019, 1004, 980, 946, 903, 851, 792,
587 724, 650, 569, 483, 392, 297, 200, 100,
588 0, -100, -200, -297, -392, -483, -569, -650,
589 -724, -792, -851, -903, -946, -980, -1004, -1019,
590 -1024, -1019, -1004, -980, -946, -903, -851, -792,
591 -724, -650, -569, -483, -392, -297, -200, -100,
592 0
593 };
594
595 static inline PFreal fsin(int iangle)
596 {
597 iangle &= IANGLE_MASK;
598
599 int i = (iangle >> 4);
600 PFreal p = sin_tab[i];
601 PFreal q = sin_tab[(i+1)];
602 PFreal g = (q - p);
603 return p + g * (iangle-i*16)/16;
604 }
605
606 static inline PFreal fcos(int iangle)
607 {
608 return fsin(iangle + (IANGLE_MAX >> 2));
609 }
610
611 static inline unsigned scale_val(unsigned val, unsigned bits)
612 {
613 val = val * ((1 << bits) - 1);
614 return ((val >> 8) + val + 128) >> 8;
615 }
616
617 static void output_row_8_transposed(uint32_t row, void * row_in,
618 struct scaler_context *ctx)
619 {
620 pix_t *dest = (pix_t*)ctx->bm->data + row;
621 pix_t *end = dest + ctx->bm->height * ctx->bm->width;
622 #ifdef USEGSLIB
623 uint8_t *qp = (uint8_t*)row_in;
624 for (; dest < end; dest += ctx->bm->height)
625 *dest = *qp++;
626 #else
627 struct uint8_rgb *qp = (struct uint8_rgb*)row_in;
628 unsigned r, g, b;
629 for (; dest < end; dest += ctx->bm->height)
630 {
631 r = scale_val(qp->red, 5);
632 g = scale_val(qp->green, 6);
633 b = scale_val((qp++)->blue, 5);
634 *dest = LCD_RGBPACK_LCD(r,g,b);
635 }
636 #endif
637 }
638
639 static void output_row_32_transposed(uint32_t row, void * row_in,
640 struct scaler_context *ctx)
641 {
642 pix_t *dest = (pix_t*)ctx->bm->data + row;
643 pix_t *end = dest + ctx->bm->height * ctx->bm->width;
644 #ifdef USEGSLIB
645 uint32_t *qp = (uint32_t*)row_in;
646 for (; dest < end; dest += ctx->bm->height)
647 *dest = SC_OUT(*qp++, ctx);
648 #else
649 struct uint32_rgb *qp = (struct uint32_rgb*)row_in;
650 int r, g, b;
651 for (; dest < end; dest += ctx->bm->height)
652 {
653 r = scale_val(SC_OUT(qp->r, ctx), 5);
654 g = scale_val(SC_OUT(qp->g, ctx), 6);
655 b = scale_val(SC_OUT(qp->b, ctx), 5);
656 qp++;
657 *dest = LCD_RGBPACK_LCD(r,g,b);
658 }
659 #endif
660 }
661
662 #ifdef HAVE_LCD_COLOR
663 static void output_row_32_transposed_fromyuv(uint32_t row, void * row_in,
664 struct scaler_context *ctx)
665 {
666 pix_t *dest = (pix_t*)ctx->bm->data + row;
667 pix_t *end = dest + ctx->bm->height * ctx->bm->width;
668 struct uint32_rgb *qp = (struct uint32_rgb*)row_in;
669 for (; dest < end; dest += ctx->bm->height)
670 {
671 unsigned r, g, b, y, u, v;
672 y = SC_OUT(qp->b, ctx);
673 u = SC_OUT(qp->g, ctx);
674 v = SC_OUT(qp->r, ctx);
675 qp++;
676 yuv_to_rgb(y, u, v, &r, &g, &b);
677 r = scale_val(r, 5);
678 g = scale_val(g, 6);
679 b = scale_val(b, 5);
680 *dest = LCD_RGBPACK_LCD(r, g, b);
681 }
682 }
683 #endif
684
685 static unsigned int get_size(struct bitmap *bm)
686 {
687 return bm->width * bm->height * sizeof(pix_t);
688 }
689
690 const struct custom_format format_transposed = {
691 .output_row_8 = output_row_8_transposed,
692 #ifdef HAVE_LCD_COLOR
693 .output_row_32 = {
694 output_row_32_transposed,
695 output_row_32_transposed_fromyuv
696 },
697 #else
698 .output_row_32 = output_row_32_transposed,
699 #endif
700 .get_size = get_size
701 };
702
703 static const struct button_mapping* get_context_map(int context)
704 {
705 return pf_contexts[context & ~CONTEXT_PLUGIN];
706 }
707
708 /* Create the lookup table with the scaling values for the reflections */
709 void init_reflect_table(void)
710 {
711 int i;
712 for (i = 0; i < REFLECT_HEIGHT; i++)
713 reflect_table[i] =
714 (768 * (REFLECT_HEIGHT - i) + (5 * REFLECT_HEIGHT / 2)) /
715 (5 * REFLECT_HEIGHT);
716 }
717
718 /**
719 Create an index of all albums from the database.
720 Also store the album names so we can access them later.
721 */
722 int create_album_index(void)
723 {
724 album = ((struct album_data *)(buf_size + (char *) buf)) - 1;
725 rb->memset(&tcs, 0, sizeof(struct tagcache_search) );
726 album_count = 0;
727 rb->tagcache_search(&tcs, tag_album);
728 unsigned int l, old_l = 0;
729 album_names = buf;
730 album[0].name_idx = 0;
731 while (rb->tagcache_get_next(&tcs))
732 {
733 buf_size -= sizeof(struct album_data);
734 l = tcs.result_len;
735 if ( album_count > 0 )
736 album[-album_count].name_idx = album[1-album_count].name_idx + old_l;
737
738 if ( l > buf_size )
739 /* not enough memory */
740 return ERROR_BUFFER_FULL;
741
742 rb->strcpy(buf, tcs.result);
743 buf_size -= l;
744 buf = l + (char *)buf;
745 album[-album_count].seek = tcs.result_seek;
746 old_l = l;
747 album_count++;
748 }
749 rb->tagcache_search_finish(&tcs);
750 ALIGN_BUFFER(buf, buf_size, 4);
751 int i;
752 struct album_data* tmp_album = (struct album_data*)buf;
753 for (i = album_count - 1; i >= 0; i--)
754 tmp_album[i] = album[-i];
755 album = tmp_album;
756 buf = album + album_count;
757 return (album_count > 0) ? 0 : ERROR_NO_ALBUMS;
758 }
759
760 /**
761 Return a pointer to the album name of the given slide_index
762 */
763 char* get_album_name(const int slide_index)
764 {
765 return album_names + album[slide_index].name_idx;
766 }
767
768 /**
769 Return a pointer to the track name of the active album
770 create_track_index has to be called first.
771 */
772 char* get_track_name(const int track_index)
773 {
774 if ( track_index < track_count )
775 return track_names + tracks[track_index].name_idx;
776 return 0;
777 }
778 #if PF_PLAYBACK_CAPABLE
779 char* get_track_filename(const int track_index)
780 {
781 if ( track_index < track_count )
782 return track_names + tracks[track_index].filename_idx;
783 return 0;
784 }
785 #endif
786 /**
787 Compare two unsigned ints passed via pointers.
788 */
789 int compare_tracks (const void *a_v, const void *b_v)
790 {
791 uint32_t a = ((struct track_data *)a_v)->sort;
792 uint32_t b = ((struct track_data *)b_v)->sort;
793 return (int)(a - b);
794 }
795
796 /**
797 Create the track index of the given slide_index.
798 */
799 void create_track_index(const int slide_index)
800 {
801 if ( slide_index == track_index )
802 return;
803 track_index = slide_index;
804
805 if (!rb->tagcache_search(&tcs, tag_title))
806 goto fail;
807
808 rb->tagcache_search_add_filter(&tcs, tag_album, album[slide_index].seek);
809 track_count=0;
810 int string_index = 0, track_num;
811 int disc_num;
812 size_t out = 0;
813 track_names = (char *)buflib_buffer_out(&buf_ctx, &out);
814 borrowed += out;
815 int avail = borrowed;
816 tracks = (struct track_data*)(track_names + borrowed);
817 while (rb->tagcache_get_next(&tcs))
818 {
819 int len = 0, fn_idx = 0;
820
821 avail -= sizeof(struct track_data);
822 track_num = rb->tagcache_get_numeric(&tcs, tag_tracknumber) - 1;
823 disc_num = rb->tagcache_get_numeric(&tcs, tag_discnumber);
824
825 if (disc_num < 0)
826 disc_num = 0;
827 retry:
828 if (track_num >= 0)
829 {
830 if (disc_num)
831 fn_idx = 1 + rb->snprintf(track_names + string_index , avail,
832 "%d.%02d: %s", disc_num, track_num + 1, tcs.result);
833 else
834 fn_idx = 1 + rb->snprintf(track_names + string_index , avail,
835 "%d: %s", track_num + 1, tcs.result);
836 }
837 else
838 {
839 track_num = 0;
840 fn_idx = 1 + rb->snprintf(track_names + string_index, avail,
841 "%s", tcs.result);
842 }
843 if (fn_idx <= 0)
844 goto fail;
845 #if PF_PLAYBACK_CAPABLE
846 int remain = avail - fn_idx;
847 if (remain >= MAX_PATH)
848 { /* retrieve filename for building the playlist */
849 rb->tagcache_retrieve(&tcs, tcs.idx_id, tag_filename,
850 track_names + string_index + fn_idx, remain);
851 len = fn_idx + rb->strlen(track_names + string_index + fn_idx) + 1;
852 /* make sure track name and file name are really split by a \0, else
853 * get_track_name might fail */
854 *(track_names + string_index + fn_idx -1) = '\0';
855
856 }
857 else /* request more buffer so that track and filename fit */
858 len = (avail - remain) + MAX_PATH;
859 #else
860 len = fn_idx;
861 #endif
862 if (len > avail)
863 {
864 while (len > avail)
865 {
866 if (!free_slide_prio(0))
867 goto fail;
868 out = 0;
869 buflib_buffer_out(&buf_ctx, &out);
870 avail += out;
871 borrowed += out;
872 if (track_count)
873 {
874 struct track_data *new_tracks = (struct track_data *)(out + (uintptr_t)tracks);
875 unsigned int bytes = track_count * sizeof(struct track_data);
876 rb->memmove(new_tracks, tracks, bytes);
877 tracks = new_tracks;
878 }
879 }
880 goto retry;
881 }
882
883 avail -= len;
884 tracks--;
885 tracks->sort = ((disc_num - 1) << 24) + (track_num << 14) + track_count;
886 tracks->name_idx = string_index;
887 tracks->seek = tcs.result_seek;
888 #if PF_PLAYBACK_CAPABLE
889 tracks->filename_idx = fn_idx + string_index;
890 #endif
891 track_count++;
892 string_index += len;
893 }
894
895 rb->tagcache_search_finish(&tcs);
896
897 /* now fix the track list order */
898 rb->qsort(tracks, track_count, sizeof(struct track_data), compare_tracks);
899 return;
900 fail:
901 track_count = 0;
902 return;
903 }
904
905 /**
906 Determine filename of the album art for the given slide_index and
907 store the result in buf.
908 The algorithm looks for the first track of the given album uses
909 find_albumart to find the filename.
910 */
911 bool get_albumart_for_index_from_db(const int slide_index, char *buf,
912 int buflen)
913 {
914 if ( slide_index == -1 )
915 {
916 rb->strlcpy( buf, EMPTY_SLIDE, buflen );
917 }
918
919 if (!rb->tagcache_search(&tcs, tag_filename))
920 return false;
921
922 bool result;
923 /* find the first track of the album */
924 rb->tagcache_search_add_filter(&tcs, tag_album, album[slide_index].seek);
925
926 if ( rb->tagcache_get_next(&tcs) ) {
927 struct mp3entry id3;
928 int fd;
929
930 #ifdef HAVE_TC_RAMCACHE
931 if (rb->tagcache_fill_tags(&id3, tcs.result))
932 {
933 rb->strlcpy(id3.path, tcs.result, sizeof(id3.path));
934 }
935 else
936 #endif
937 {
938 fd = rb->open(tcs.result, O_RDONLY);
939 rb->get_metadata(&id3, fd, tcs.result);
940 rb->close(fd);
941 }
942 if ( search_albumart_files(&id3, ":", buf, buflen) )
943 result = true;
944 else
945 result = false;
946 }
947 else {
948 /* did not find a matching track */
949 result = false;
950 }
951 rb->tagcache_search_finish(&tcs);
952 return result;
953 }
954
955 /**
956 Draw the PictureFlow logo
957 */
958 void draw_splashscreen(void)
959 {
960 unsigned char * buf_tmp = buf;
961 size_t buf_tmp_size = buf_size;
962 struct screen* display = rb->screens[0];
963 #if FB_DATA_SZ > 1
964 ALIGN_BUFFER(buf_tmp, buf_tmp_size, sizeof(fb_data));
965 #endif
966 struct bitmap logo = {
967 #if LCD_WIDTH < 200
968 .width = 100,
969 .height = 18,
970 #else
971 .width = 193,
972 .height = 34,
973 #endif
974 .data = buf_tmp
975 };
976 int ret = rb->read_bmp_file(SPLASH_BMP, &logo, buf_tmp_size, FORMAT_NATIVE,
977 NULL);
978 #if LCD_DEPTH > 1
979 rb->lcd_set_background(N_BRIGHT(0));
980 rb->lcd_set_foreground(N_BRIGHT(255));
981 #else
982 rb->lcd_set_drawmode(PICTUREFLOW_DRMODE);
983 #endif
984 rb->lcd_clear_display();
985
986 if (ret > 0)
987 {
988 #if LCD_DEPTH == 1 /* Mono LCDs need the logo inverted */
989 rb->lcd_set_drawmode(PICTUREFLOW_DRMODE ^ DRMODE_INVERSEVID);
990 #endif
991 display->bitmap(logo.data, (LCD_WIDTH - logo.width) / 2, 10,
992 logo.width, logo.height);
993 #if LCD_DEPTH == 1 /* Mono LCDs need the logo inverted */
994 rb->lcd_set_drawmode(PICTUREFLOW_DRMODE);
995 #endif
996 }
997
998 rb->lcd_update();
999 }
1000
1001
1002 /**
1003 Draw a simple progress bar
1004 */
1005 void draw_progressbar(int step)
1006 {
1007 int txt_w, txt_h;
1008 const int bar_height = 22;
1009 const int w = LCD_WIDTH - 20;
1010 const int x = 10;
1011
1012 rb->lcd_getstringsize("Preparing album artwork", &txt_w, &txt_h);
1013
1014 int y = (LCD_HEIGHT - txt_h)/2;
1015
1016 rb->lcd_putsxy((LCD_WIDTH - txt_w)/2, y, "Preparing album artwork");
1017 y += (txt_h + 5);
1018
1019 #if LCD_DEPTH > 1
1020 rb->lcd_set_foreground(N_BRIGHT(100));
1021 #endif
1022 rb->lcd_drawrect(x, y, w+2, bar_height);
1023 #if LCD_DEPTH > 1
1024 rb->lcd_set_foreground(N_PIX(165, 231, 82));
1025 #endif
1026
1027 rb->lcd_fillrect(x+1, y+1, step * w / album_count, bar_height-2);
1028 #if LCD_DEPTH > 1
1029 rb->lcd_set_foreground(N_BRIGHT(255));
1030 #endif
1031 rb->lcd_update();
1032 rb->yield();
1033 }
1034
1035 /**
1036 Precomupte the album art images and store them in CACHE_PREFIX.
1037 */
1038 bool create_albumart_cache(void)
1039 {
1040 int ret;
1041
1042 int i, slides = 0;
1043 struct bitmap input_bmp;
1044
1045 char pfraw_file[MAX_PATH];
1046 char albumart_file[MAX_PATH];
1047 unsigned int format = FORMAT_NATIVE;
1048 cache_version = 0;
1049 configfile_save(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION);
1050 if (resize)
1051 format |= FORMAT_RESIZE|FORMAT_KEEP_ASPECT;
1052 for (i=0; i < album_count; i++)
1053 {
1054 rb->snprintf(pfraw_file, sizeof(pfraw_file), CACHE_PREFIX "/%d.pfraw",
1055 i);
1056 /* delete existing cache, so it's a true rebuild */
1057 if(rb->file_exists(pfraw_file))
1058 rb->remove(pfraw_file);
1059 draw_progressbar(i);
1060 if (!get_albumart_for_index_from_db(i, albumart_file, MAX_PATH))
1061 continue;
1062
1063 input_bmp.data = buf;
1064 input_bmp.width = DISPLAY_WIDTH;
1065 input_bmp.height = DISPLAY_HEIGHT;
1066 ret = read_image_file(albumart_file, &input_bmp,
1067 buf_size, format, &format_transposed);
1068 if (ret <= 0) {
1069 rb->splash(HZ, "Could not read bmp");
1070 continue; /* skip missing/broken files */
1071 }
1072 if (!save_pfraw(pfraw_file, &input_bmp))
1073 {
1074 rb->splash(HZ, "Could not write bmp");
1075 }
1076 slides++;
1077 if ( rb->button_get(false) == PF_MENU ) return false;
1078 }
1079 if ( slides == 0 ) {
1080 /* Warn the user that we couldn't find any albumart */
1081 rb->splash(2*HZ, "No album art found");
1082 return false;
1083 }
1084 return true;
1085 }
1086
1087 /**
1088 Thread used for loading and preparing bitmaps in the background
1089 */
1090 void thread(void)
1091 {
1092 long sleep_time = 5 * HZ;
1093 struct queue_event ev;
1094 while (1) {
1095 rb->queue_wait_w_tmo(&thread_q, &ev, sleep_time);
1096 switch (ev.id) {
1097 case EV_EXIT:
1098 return;
1099 case EV_WAKEUP:
1100 /* we just woke up */
1101 break;
1102 }
1103 while ( load_new_slide() ) {
1104 rb->yield();
1105 switch (ev.id) {
1106 case EV_EXIT:
1107 return;
1108 }
1109 }
1110 }
1111 }
1112
1113
1114 /**
1115 End the thread by posting the EV_EXIT event
1116 */
1117 void end_pf_thread(void)
1118 {
1119 if ( thread_is_running ) {
1120 rb->queue_post(&thread_q, EV_EXIT, 0);
1121 rb->thread_wait(thread_id);
1122 /* remove the thread's queue from the broadcast list */
1123 rb->queue_delete(&thread_q);
1124 thread_is_running = false;
1125 }
1126
1127 }
1128
1129
1130 /**
1131 Create the thread an setup the event queue
1132 */
1133 bool create_pf_thread(void)
1134 {
1135 /* put the thread's queue in the bcast list */
1136 rb->queue_init(&thread_q, true);
1137 if ((thread_id = rb->create_thread(
1138 thread,
1139 thread_stack,
1140 sizeof(thread_stack),
1141 0,
1142 "Picture load thread"
1143 IF_PRIO(, MAX(PRIORITY_USER_INTERFACE / 2,
1144 PRIORITY_REALTIME + 1))
1145 IF_COP(, CPU)
1146 )
1147 ) == 0) {
1148 return false;
1149 }
1150 thread_is_running = true;
1151 rb->queue_post(&thread_q, EV_WAKEUP, 0);
1152 return true;
1153 }
1154
1155 /**
1156 Safe the given bitmap as filename in the pfraw format
1157 */
1158 bool save_pfraw(char* filename, struct bitmap *bm)
1159 {
1160 struct pfraw_header bmph;
1161 bmph.width = bm->width;
1162 bmph.height = bm->height;
1163 int fh = rb->creat( filename );
1164 if( fh < 0 ) return false;
1165 rb->write( fh, &bmph, sizeof( struct pfraw_header ) );
1166 int y;
1167 for( y = 0; y < bm->height; y++ )
1168 {
1169 pix_t *d = (pix_t*)( bm->data ) + (y*bm->width);
1170 rb->write( fh, d, sizeof( pix_t ) * bm->width );
1171 }
1172 rb->close( fh );
1173 return true;
1174 }
1175
1176
1177 /*
1178 * The following functions implement the linked-list-in-array used to manage
1179 * the LRU cache of slides, and the list of free cache slots.
1180 */
1181
1182 #define seek_right_while(start, cond) \
1183 ({ \
1184 int ind_, next_ = (start); \
1185 do { \
1186 ind_ = next_; \
1187 next_ = cache[ind_].next; \
1188 } while (next_ != cache_used && (cond)); \
1189 ind_; \
1190 })
1191
1192 #define seek_left_while(start, cond) \
1193 ({ \
1194 int ind_, next_ = (start); \
1195 do { \
1196 ind_ = next_; \
1197 next_ = cache[ind_].prev; \
1198 } while (ind_ != cache_used && (cond)); \
1199 ind_; \
1200 })
1201
1202 /**
1203 Pop the given item from the linked list starting at *head, returning the next
1204 item, or -1 if the list is now empty.
1205 */
1206 static inline int lla_pop_item (int *head, int i)
1207 {
1208 int prev = cache[i].prev;
1209 int next = cache[i].next;
1210 if (i == next)
1211 {
1212 *head = -1;
1213 return -1;
1214 }
1215 else if (i == *head)
1216 *head = next;
1217 cache[next].prev = prev;
1218 cache[prev].next = next;
1219 return next;
1220 }
1221
1222
1223 /**
1224 Pop the head item from the list starting at *head, returning the index of the
1225 item, or -1 if the list is already empty.
1226 */
1227 static inline int lla_pop_head (int *head)
1228 {
1229 int i = *head;
1230 if (i != -1)
1231 lla_pop_item(head, i);
1232 return i;
1233 }
1234
1235 /**
1236 Insert the item at index i before the one at index p.
1237 */
1238 static inline void lla_insert (int i, int p)
1239 {
1240 int next = p;
1241 int prev = cache[next].prev;
1242 cache[next].prev = i;
1243 cache[prev].next = i;
1244 cache[i].next = next;
1245 cache[i].prev = prev;
1246 }
1247
1248
1249 /**
1250 Insert the item at index i at the end of the list starting at *head.
1251 */
1252 static inline void lla_insert_tail (int *head, int i)
1253 {
1254 if (*head == -1)
1255 {
1256 *head = i;
1257 cache[i].next = i;
1258 cache[i].prev = i;
1259 } else
1260 lla_insert(i, *head);
1261 }
1262
1263 /**
1264 Insert the item at index i before the one at index p.
1265 */
1266 static inline void lla_insert_after(int i, int p)
1267 {
1268 p = cache[p].next;
1269 lla_insert(i, p);
1270 }
1271
1272
1273 /**
1274 Insert the item at index i before the one at index p in the list starting at
1275 *head
1276 */
1277 static inline void lla_insert_before(int *head, int i, int p)
1278 {
1279 lla_insert(i, p);
1280 if (*head == p)
1281 *head = i;
1282 }
1283
1284
1285 /**
1286 Free the used slide at index i, and its buffer, and move it to the free
1287 slides list.
1288 */
1289 static inline void free_slide(int i)
1290 {
1291 if (cache[i].hid != empty_slide_hid)
1292 buflib_free(&buf_ctx, cache[i].hid);
1293 cache[i].index = -1;
1294 lla_pop_item(&cache_used, i);
1295 lla_insert_tail(&cache_free, i);
1296 if (cache_used == -1)
1297 {
1298 cache_right_index = -1;
1299 cache_left_index = -1;
1300 cache_center_index = -1;
1301 }
1302 }
1303
1304
1305 /**
1306 Free one slide ranked above the given priority. If no such slide can be found,
1307 return false.
1308 */
1309 static bool free_slide_prio(int prio)
1310 {
1311 if (cache_used == -1)
1312 return false;
1313 int i, l = cache_used, r = cache[cache_used].prev, prio_max;
1314 int prio_l = cache[l].index < center_index ?
1315 center_index - cache[l].index : 0;
1316 int prio_r = cache[r].index > center_index ?
1317 cache[r].index - center_index : 0;
1318 if (prio_l > prio_r)
1319 {
1320 i = l;
1321 prio_max = prio_l;
1322 } else {
1323 i = r;
1324 prio_max = prio_r;
1325 }
1326 if (prio_max > prio)
1327 {
1328 if (i == cache_left_index)
1329 cache_left_index = cache[i].next;
1330 if (i == cache_right_index)
1331 cache_right_index = cache[i].prev;
1332 free_slide(i);
1333 return true;
1334 } else
1335 return false;
1336 }
1337
1338 /**
1339 Read the pfraw image given as filename and return the hid of the buffer
1340 */
1341 int read_pfraw(char* filename, int prio)
1342 {
1343 struct pfraw_header bmph;
1344 int fh = rb->open(filename, O_RDONLY);
1345 if( fh < 0 )
1346 return empty_slide_hid;
1347 else
1348 rb->read(fh, &bmph, sizeof(struct pfraw_header));
1349
1350 int size = sizeof(struct bitmap) + sizeof( pix_t ) *
1351 bmph.width * bmph.height;
1352
1353 int hid;
1354 while (!(hid = buflib_alloc(&buf_ctx, size)) && free_slide_prio(prio));
1355
1356 if (!hid) {
1357 rb->close( fh );
1358 return 0;
1359 }
1360
1361 struct dim *bm = buflib_get_data(&buf_ctx, hid);
1362
1363 bm->width = bmph.width;
1364 bm->height = bmph.height;
1365 pix_t *data = (pix_t*)(sizeof(struct dim) + (char *)bm);
1366
1367 int y;
1368 for( y = 0; y < bm->height; y++ )
1369 {
1370 rb->read( fh, data , sizeof( pix_t ) * bm->width );
1371 data += bm->width;
1372 }
1373 rb->close( fh );
1374 return hid;
1375 }
1376
1377
1378 /**
1379 Load the surface for the given slide_index into the cache at cache_index.
1380 */
1381 static inline bool load_and_prepare_surface(const int slide_index,
1382 const int cache_index,
1383 const int prio)
1384 {
1385 char tmp_path_name[MAX_PATH+1];
1386 rb->snprintf(tmp_path_name, sizeof(tmp_path_name), CACHE_PREFIX "/%d.pfraw",
1387 slide_index);
1388
1389 int hid = read_pfraw(tmp_path_name, prio);
1390 if (!hid)
1391 return false;
1392
1393 cache[cache_index].hid = hid;
1394
1395 if ( cache_index < SLIDE_CACHE_SIZE ) {
1396 cache[cache_index].index = slide_index;
1397 }
1398
1399 return true;
1400 }
1401
1402
1403 /**
1404 Load the "next" slide that we can load, freeing old slides if needed, provided
1405 that they are further from center_index than the current slide
1406 */
1407 bool load_new_slide(void)
1408 {
1409 int i = -1;
1410 if (cache_center_index != -1)
1411 {
1412 int next, prev;
1413 if (cache[cache_center_index].index != center_index)
1414 {
1415 if (cache[cache_center_index].index < center_index)
1416 {
1417 cache_center_index = seek_right_while(cache_center_index,
1418 cache[next_].index <= center_index);
1419 prev = cache_center_index;
1420 next = cache[cache_center_index].next;
1421 }
1422 else
1423 {
1424 cache_center_index = seek_left_while(cache_center_index,
1425 cache[next_].index >= center_index);
1426 next = cache_center_index;
1427 prev = cache[cache_center_index].prev;
1428 }
1429 if (cache[cache_center_index].index != center_index)
1430 {
1431 if (cache_free == -1)
1432 free_slide_prio(0);
1433 i = lla_pop_head(&cache_free);
1434 if (!load_and_prepare_surface(center_index, i, 0))
1435 goto fail_and_refree;
1436 if (cache[next].index == -1)
1437 {
1438 if (cache[prev].index == -1)
1439 goto insert_first_slide;
1440 else
1441 next = cache[prev].next;
1442 }
1443 lla_insert(i, next);
1444 if (cache[i].index < cache[cache_used].index)
1445 cache_used = i;
1446 cache_center_index = i;
1447 cache_left_index = i;
1448 cache_right_index = i;
1449 return true;
1450 }
1451 }
1452 if (cache[cache_left_index].index >
1453 cache[cache_center_index].index)
1454 cache_left_index = cache_center_index;
1455 if (cache[cache_right_index].index <
1456 cache[cache_center_index].index)
1457 cache_right_index = cache_center_index;
1458 cache_left_index = seek_left_while(cache_left_index,
1459 cache[ind_].index - 1 == cache[next_].index);
1460 cache_right_index = seek_right_while(cache_right_index,
1461 cache[ind_].index - 1 == cache[next_].index);
1462 int prio_l = cache[cache_center_index].index -
1463 cache[cache_left_index].index + 1;
1464 int prio_r = cache[cache_right_index].index -
1465 cache[cache_center_index].index + 1;
1466 if ((prio_l < prio_r ||
1467 cache[cache_right_index].index >= number_of_slides) &&
1468 cache[cache_left_index].index > 0)
1469 {
1470 if (cache_free == -1 && !free_slide_prio(prio_l))
1471 return false;
1472 i = lla_pop_head(&cache_free);
1473 if (load_and_prepare_surface(cache[cache_left_index].index
1474 - 1, i, prio_l))
1475 {
1476 lla_insert_before(&cache_used, i, cache_left_index);
1477 cache_left_index = i;
1478 return true;
1479 }
1480 } else if(cache[cache_right_index].index < number_of_slides - 1)
1481 {
1482 if (cache_free == -1 && !free_slide_prio(prio_r))
1483 return false;
1484 i = lla_pop_head(&cache_free);
1485 if (load_and_prepare_surface(cache[cache_right_index].index
1486 + 1, i, prio_r))
1487 {
1488 lla_insert_after(i, cache_right_index);
1489 cache_right_index = i;
1490 return true;
1491 }
1492 }
1493 } else {
1494 i = lla_pop_head(&cache_free);
1495 if (load_and_prepare_surface(center_index, i, 0))
1496 {
1497 insert_first_slide:
1498 cache[i].next = i;
1499 cache[i].prev = i;
1500 cache_center_index = i;
1501 cache_left_index = i;
1502 cache_right_index = i;
1503 cache_used = i;
1504 return true;
1505 }
1506 }
1507 fail_and_refree:
1508 if (i != -1)
1509 {
1510 lla_insert_tail(&cache_free, i);
1511 }
1512 return false;
1513 }
1514
1515
1516 /**
1517 Get a slide from the buffer
1518 */
1519 static inline struct dim *get_slide(const int hid)
1520 {
1521 if (!hid)
1522 return NULL;
1523
1524 struct dim *bmp;
1525
1526 bmp = buflib_get_data(&buf_ctx, hid);
1527
1528 return bmp;
1529 }
1530
1531
1532 /**
1533 Return the requested surface
1534 */
1535 static inline struct dim *surface(const int slide_index)
1536 {
1537 if (slide_index < 0)
1538 return 0;
1539 if (slide_index >= number_of_slides)
1540 return 0;
1541 int i;
1542 if ((i = cache_used ) != -1)
1543 {
1544 do {
1545 if (cache[i].index == slide_index)
1546 return get_slide(cache[i].hid);
1547 i = cache[i].next;
1548 } while (i != cache_used);
1549 }
1550 return get_slide(empty_slide_hid);
1551 }
1552
1553 /**
1554 adjust slides so that they are in "steady state" position
1555 */
1556 void reset_slides(void)
1557 {
1558 center_slide.angle = 0;
1559 center_slide.cx = 0;
1560 center_slide.cy = 0;
1561 center_slide.distance = 0;
1562 center_slide.slide_index = center_index;
1563
1564 int i;
1565 for (i = 0; i < num_slides; i++) {
1566 struct slide_data *si = &left_slides[i];
1567 si->angle = itilt;
1568 si->cx = -(offsetX + slide_spacing * i * PFREAL_ONE);
1569 si->cy = offsetY;
1570 si->slide_index = center_index - 1 - i;
1571 si->distance = 0;
1572 }
1573
1574 for (i = 0; i < num_slides; i++) {
1575 struct slide_data *si = &right_slides[i];
1576 si->angle = -itilt;
1577 si->cx = offsetX + slide_spacing * i * PFREAL_ONE;
1578 si->cy = offsetY;
1579 si->slide_index = center_index + 1 + i;
1580 si->distance = 0;
1581 }
1582 }
1583
1584
1585 /**
1586 Updates look-up table and other stuff necessary for the rendering.
1587 Call this when the viewport size or slide dimension is changed.
1588 *
1589 * To calculate the offset that will provide the proper margin, we use the same
1590 * projection used to render the slides. The solution for xc, the slide center,
1591 * is:
1592 * xp * (zo + xs * sin(r))
1593 * xc = xp - xs * cos(r) + ───────────────────────
1594 * z
1595 * TODO: support moving the side slides toward or away from the camera
1596 */
1597 void recalc_offsets(void)
1598 {
1599 PFreal xs = PFREAL_HALF - DISPLAY_WIDTH * PFREAL_HALF;
1600 PFreal zo;
1601 PFreal xp = (DISPLAY_WIDTH * PFREAL_HALF - PFREAL_HALF + center_margin *
1602 PFREAL_ONE) * zoom / 100;
1603 PFreal cosr, sinr;
1604
1605 itilt = 70 * IANGLE_MAX / 360; /* approx. 70 degrees tilted */
1606 cosr = fcos(-itilt);
1607 sinr = fsin(-itilt);
1608 zo = CAM_DIST_R * 100 / zoom - CAM_DIST_R +
1609 fmuln(MAXSLIDE_LEFT_R, sinr, PFREAL_SHIFT - 2, 0);
1610 offsetX = xp - fmul(xs, cosr) + fmuln(xp,
1611 zo + fmuln(xs, sinr, PFREAL_SHIFT - 2, 0), PFREAL_SHIFT - 2, 0)
1612 / CAM_DIST;
1613 offsetY = DISPLAY_WIDTH / 2 * (fsin(itilt) + PFREAL_ONE / 2);
1614 }
1615
1616
1617 /**
1618 Fade the given color by spreading the fb_data (ushort)
1619 to an uint, multiply and compress the result back to a ushort.
1620 */
1621 #if (LCD_PIXELFORMAT == RGB565SWAPPED)
1622 static inline unsigned fade_color(pix_t c, unsigned a)
1623 {
1624 unsigned int result;
1625 c = swap16(c);
1626 a = (a + 2) & 0x1fc;
1627 result = ((c & 0xf81f) * a) & 0xf81f00;
1628 result |= ((c & 0x7e0) * a) & 0x7e000;
1629 result >>= 8;
1630 return swap16(result);
1631 }
1632 #elif LCD_PIXELFORMAT == RGB565
1633 static inline unsigned fade_color(pix_t c, unsigned a)
1634 {
1635 unsigned int result;
1636 a = (a + 2) & 0x1fc;
1637 result = ((c & 0xf81f) * a) & 0xf81f00;
1638 result |= ((c & 0x7e0) * a) & 0x7e000;
1639 result >>= 8;
1640 return result;
1641 }
1642 #else
1643 static inline unsigned fade_color(pix_t c, unsigned a)
1644 {
1645 unsigned val = c;
1646 return MULUQ(val, a) >> 8;
1647 }
1648 #endif
1649
1650 /**
1651 * Render a single slide
1652 * Where xc is the slide's horizontal offset from center, xs is the horizontal
1653 * on the slide from its center, zo is the slide's depth offset from the plane
1654 * of the display, r is the angle at which the slide is tilted, and xp is the
1655 * point on the display corresponding to xs on the slide, the projection
1656 * formulas are:
1657 *
1658 * z * (xc + xs * cos(r))
1659 * xp = ──────────────────────
1660 * z + zo + xs * sin(r)
1661 *
1662 * z * (xc - xp) - xp * zo
1663 * xs = ────────────────────────
1664 * xp * sin(r) - z * cos(r)
1665 *
1666 * We use the xp projection once, to find the left edge of the slide on the
1667 * display. From there, we use the xs reverse projection to find the horizontal
1668 * offset from the slide center of each column on the screen, until we reach
1669 * the right edge of the slide, or the screen. The reverse projection can be
1670 * optimized by saving the numerator and denominator of the fraction, which can
1671 * then be incremented by (z + zo) and sin(r) respectively.
1672 */
1673 void render_slide(struct slide_data *slide, const int alpha)
1674 {
1675 struct dim *bmp = surface(slide->slide_index);
1676 if (!bmp) {
1677 return;
1678 }
1679 if (slide->angle > 255 || slide->angle < -255)
1680 return;
1681 pix_t *src = (pix_t*)(sizeof(struct dim) + (char *)bmp);
1682
1683 const int sw = bmp->width;
1684 const int sh = bmp->height;
1685 const PFreal slide_left = -sw * PFREAL_HALF + PFREAL_HALF;
1686 const int w = LCD_WIDTH;
1687
1688 uint8_t reftab[REFLECT_HEIGHT]; /* on stack, which is in IRAM on several targets */
1689
1690 if (alpha == 256) { /* opaque -> copy table */
1691 rb->memcpy(reftab, reflect_table, sizeof(reftab));
1692 } else { /* precalculate faded table */
1693 int i, lalpha;
1694 for (i = 0; i < REFLECT_HEIGHT; i++) {
1695 lalpha = reflect_table[i];
1696 reftab[i] = (MULUQ(lalpha, alpha) + 129) >> 8;
1697 }
1698 }
1699
1700 PFreal cosr = fcos(slide->angle);
1701 PFreal sinr = fsin(slide->angle);
1702 PFreal zo = PFREAL_ONE * slide->distance + CAM_DIST_R * 100 / zoom
1703 - CAM_DIST_R - fmuln(MAXSLIDE_LEFT_R, fabs(sinr), PFREAL_SHIFT - 2, 0);
1704 PFreal xs = slide_left, xsnum, xsnumi, xsden, xsdeni;
1705 PFreal xp = fdiv(CAM_DIST * (slide->cx + fmul(xs, cosr)),
1706 (CAM_DIST_R + zo + fmul(xs,sinr)));
1707
1708 /* Since we're finding the screen position of the left edge of the slide,
1709 * we round up.
1710 */
1711 int xi = (fmax(DISPLAY_LEFT_R, xp) - DISPLAY_LEFT_R + PFREAL_ONE - 1)
1712 >> PFREAL_SHIFT;
1713 xp = DISPLAY_LEFT_R + xi * PFREAL_ONE;
1714 if (xi >= w) {
1715 return;
1716 }
1717 xsnum = CAM_DIST * (slide->cx - xp) - fmuln(xp, zo, PFREAL_SHIFT - 2, 0);
1718 xsden = fmuln(xp, sinr, PFREAL_SHIFT - 2, 0) - CAM_DIST * cosr;
1719 xs = fdiv(xsnum, xsden);
1720
1721 xsnumi = -CAM_DIST_R - zo;
1722 xsdeni = sinr;
1723 int x;
1724 int dy = PFREAL_ONE;
1725 for (x = xi; x < w; x++) {
1726 int column = (xs - slide_left) / PFREAL_ONE;
1727 if (column >= sw)
1728 break;
1729 if (zo || slide->angle)
1730 dy = (CAM_DIST_R + zo + fmul(xs, sinr)) / CAM_DIST;
1731
1732 const pix_t *ptr = &src[column * bmp->height];
1733 const int pixelstep = BUFFER_WIDTH;
1734
1735 int p = (bmp->height-1-DISPLAY_OFFS) * PFREAL_ONE;
1736 int plim = MAX(0, p - (LCD_HEIGHT/2-1) * dy);
1737 pix_t *pixel = &buffer[((LCD_HEIGHT/2)-1)*BUFFER_WIDTH + x];
1738
1739 if (alpha == 256) {
1740 while (p >= plim) {
1741 *pixel = ptr[((unsigned)p) >> PFREAL_SHIFT];
1742 p -= dy;
1743 pixel -= pixelstep;
1744 }
1745 } else {
1746 while (p >= plim) {
1747 *pixel = fade_color(ptr[((unsigned)p) >> PFREAL_SHIFT], alpha);
1748 p -= dy;
1749 pixel -= pixelstep;
1750 }
1751 }
1752 p = (bmp->height-DISPLAY_OFFS) * PFREAL_ONE;
1753 plim = MIN(sh * PFREAL_ONE, p + (LCD_HEIGHT/2) * dy);
1754 int plim2 = MIN(MIN(sh + REFLECT_HEIGHT, sh * 2) * PFREAL_ONE,
1755 p + (LCD_HEIGHT/2) * dy);
1756 pixel = &buffer[(LCD_HEIGHT/2)*BUFFER_WIDTH + x];
1757
1758 if (alpha == 256) {
1759 while (p < plim) {
1760 *pixel = ptr[((unsigned)p) >> PFREAL_SHIFT];
1761 p += dy;
1762 pixel += pixelstep;
1763 }
1764 } else {
1765 while (p < plim) {
1766 *pixel = fade_color(ptr[((unsigned)p) >> PFREAL_SHIFT], alpha);
1767 p += dy;
1768 pixel += pixelstep;
1769 }
1770 }
1771 while (p < plim2) {
1772 int ty = (((unsigned)p) >> PFREAL_SHIFT) - sh;
1773 int lalpha = reftab[ty];
1774 *pixel = fade_color(ptr[sh - 1 - ty], lalpha);
1775 p += dy;
1776 pixel += pixelstep;
1777 }
1778
1779 if (zo || slide->angle)
1780 {
1781 xsnum += xsnumi;
1782 xsden += xsdeni;
1783 xs = fdiv(xsnum, xsden);
1784 } else
1785 xs += PFREAL_ONE;
1786
1787 }
1788 /* let the music play... */
1789 rb->yield();
1790 return;
1791 }
1792
1793
1794 /**
1795 Jump the the given slide_index
1796 */
1797 static inline void set_current_slide(const int slide_index)
1798 {
1799 int old_center_index = center_index;
1800 step = 0;
1801 center_index = fbound(slide_index, 0, number_of_slides - 1);
1802 if (old_center_index != center_index)
1803 rb->queue_post(&thread_q, EV_WAKEUP, 0);
1804 target = center_index;
1805 slide_frame = slide_index << 16;
1806 reset_slides();
1807 }
1808
1809 /**
1810 Start the animation for changing slides
1811 */
1812 void start_animation(void)
1813 {
1814 step = (target < center_slide.slide_index) ? -1 : 1;
1815 pf_state = pf_scrolling;
1816 }
1817
1818 /**
1819 Go to the previous slide
1820 */
1821 void show_previous_slide(void)
1822 {
1823 if (step == 0) {
1824 if (center_index > 0) {
1825 target = center_index - 1;
1826 start_animation();
1827 }
1828 } else if ( step > 0 ) {
1829 target = center_index;
1830 start_animation();
1831 } else {
1832 target = fmax(0, center_index - 2);
1833 }
1834 }
1835
1836
1837 /**
1838 Go to the next slide
1839 */
1840 void show_next_slide(void)
1841 {
1842 if (step == 0) {
1843 if (center_index < number_of_slides - 1) {
1844 target = center_index + 1;
1845 start_animation();
1846 }
1847 } else if ( step < 0 ) {
1848 target = center_index;
1849 start_animation();
1850 } else {
1851 target = fmin(center_index + 2, number_of_slides - 1);
1852 }
1853 }
1854
1855
1856 /**
1857 Render the slides. Updates only the offscreen buffer.
1858 */
1859 void render_all_slides(void)
1860 {
1861 MYLCD(set_background)(G_BRIGHT(0));
1862 /* TODO: Optimizes this by e.g. invalidating rects */
1863 MYLCD(clear_display)();
1864
1865 int nleft = num_slides;
1866 int nright = num_slides;
1867
1868 int index;
1869 if (step == 0) {
1870 /* no animation, boring plain rendering */
1871 for (index = nleft - 2; index >= 0; index--) {
1872 int alpha = (index < nleft - 2) ? 256 : 128;
1873 alpha -= extra_fade;
1874 if (alpha > 0 )
1875 render_slide(&left_slides[index], alpha);
1876 }
1877 for (index = nright - 2; index >= 0; index--) {
1878 int alpha = (index < nright - 2) ? 256 : 128;
1879 alpha -= extra_fade;
1880 if (alpha > 0 )
1881 render_slide(&right_slides[index], alpha);
1882 }
1883 } else {
1884 /* the first and last slide must fade in/fade out */
1885 for (index = nleft - 1; index >= 0; index--) {
1886 int alpha = 256;
1887 if (index == nleft - 1)
1888 alpha = (step > 0) ? 0 : 128 - fade / 2;
1889 if (index == nleft - 2)
1890 alpha = (step > 0) ? 128 - fade / 2 : 256 - fade / 2;
1891 if (index == nleft - 3)
1892 alpha = (step > 0) ? 256 - fade / 2 : 256;
1893 render_slide(&left_slides[index], alpha);
1894 }
1895 for (index = nright - 1; index >= 0; index--) {
1896 int alpha = (index < nright - 2) ? 256 : 128;
1897 if (index == nright - 1)
1898 alpha = (step > 0) ? fade / 2 : 0;
1899 if (index == nright - 2)
1900 alpha = (step > 0) ? 128 + fade / 2 : fade / 2;
1901 if (index == nright - 3)
1902 alpha = (step > 0) ? 256 : 128 + fade / 2;
1903 render_slide(&right_slides[index], alpha);
1904 }
1905 }
1906 render_slide(&center_slide, 256);
1907 }
1908
1909
1910 /**
1911 Updates the animation effect. Call this periodically from a timer.
1912 */
1913 void update_scroll_animation(void)
1914 {
1915 if (step == 0)
1916 return;
1917
1918 int speed = 16384;
1919 int i;
1920
1921 /* deaccelerate when approaching the target */
1922 if (true) {
1923 const int max = 2 * 65536;
1924
1925 int fi = slide_frame;
1926 fi -= (target << 16);
1927 if (fi < 0)
1928 fi = -fi;
1929 fi = fmin(fi, max);
1930
1931 int ia = IANGLE_MAX * (fi - max / 2) / (max * 2);
1932 speed = 512 + 16384 * (PFREAL_ONE + fsin(ia)) / PFREAL_ONE;
1933 }
1934
1935 slide_frame += speed * step;
1936
1937 int index = slide_frame >> 16;
1938 int pos = slide_frame & 0xffff;
1939 int neg = 65536 - pos;
1940 int tick = (step < 0) ? neg : pos;
1941 PFreal ftick = (tick * PFREAL_ONE) >> 16;
1942
1943 /* the leftmost and rightmost slide must fade away */
1944 fade = pos / 256;
1945
1946 if (step < 0)
1947 index++;
1948 if (center_index != index) {
1949 center_index = index;
1950 rb->queue_post(&thread_q, EV_WAKEUP, 0);
1951 slide_frame = index << 16;
1952 center_slide.slide_index = center_index;
1953 for (i = 0; i < num_slides; i++)
1954 left_slides[i].slide_index = center_index - 1 - i;
1955 for (i = 0; i < num_slides; i++)
1956 right_slides[i].slide_index = center_index + 1 + i;
1957 }
1958
1959 center_slide.angle = (step * tick * itilt) >> 16;
1960 center_slide.cx = -step * fmul(offsetX, ftick);
1961 center_slide.cy = fmul(offsetY, ftick);
1962
1963 if (center_index == target) {
1964 reset_slides();
1965 pf_state = pf_idle;
1966 step = 0;
1967 fade = 256;
1968 return;
1969 }
1970
1971 for (i = 0; i < num_slides; i++) {
1972 struct slide_data *si = &left_slides[i];
1973 si->angle = itilt;
1974 si->cx =
1975 -(offsetX + slide_spacing * i * PFREAL_ONE + step
1976 * slide_spacing * ftick);
1977 si->cy = offsetY;
1978 }
1979
1980 for (i = 0; i < num_slides; i++) {
1981 struct slide_data *si = &right_slides[i];
1982 si->angle = -itilt;
1983 si->cx =
1984 offsetX + slide_spacing * i * PFREAL_ONE - step
1985 * slide_spacing * ftick;
1986 si->cy = offsetY;
1987 }
1988
1989 if (step > 0) {
1990 PFreal ftick = (neg * PFREAL_ONE) >> 16;
1991 right_slides[0].angle = -(neg * itilt) >> 16;
1992 right_slides[0].cx = fmul(offsetX, ftick);
1993 right_slides[0].cy = fmul(offsetY, ftick);
1994 } else {
1995 PFreal ftick = (pos * PFREAL_ONE) >> 16;
1996 left_slides[0].angle = (pos * itilt) >> 16;
1997 left_slides[0].cx = -fmul(offsetX, ftick);
1998 left_slides[0].cy = fmul(offsetY, ftick);
1999 }
2000
2001 /* must change direction ? */
2002 if (target < index)
2003 if (step > 0)
2004 step = -1;
2005 if (target > index)
2006 if (step < 0)
2007 step = 1;
2008 }
2009
2010
2011 /**
2012 Cleanup the plugin
2013 */
2014 void cleanup(void *parameter)
2015 {
2016 (void) parameter;
2017 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
2018 rb->cpu_boost(false);
2019 #endif
2020 end_pf_thread();
2021 /* Turn on backlight timeout (revert to settings) */
2022 backlight_use_settings(); /* backlight control in lib/helper.c */
2023
2024 #ifdef USEGSLIB
2025 grey_release();
2026 #endif
2027 }
2028
2029 /**
2030 Create the "?" slide, that is shown while loading
2031 or when no cover was found.
2032 */
2033 int create_empty_slide(bool force)
2034 {
2035 if ( force || ! rb->file_exists( EMPTY_SLIDE ) ) {
2036 struct bitmap input_bmp;
2037 int ret;
2038 input_bmp.width = DISPLAY_WIDTH;
2039 input_bmp.height = DISPLAY_HEIGHT;
2040 #if LCD_DEPTH > 1
2041 input_bmp.format = FORMAT_NATIVE;
2042 #endif
2043 input_bmp.data = (char*)buf;
2044 ret = scaled_read_bmp_file(EMPTY_SLIDE_BMP, &input_bmp,
2045 buf_size,
2046 FORMAT_NATIVE|FORMAT_RESIZE|FORMAT_KEEP_ASPECT,
2047 &format_transposed);
2048 if (!save_pfraw(EMPTY_SLIDE, &input_bmp))
2049 return false;
2050 }
2051
2052 return true;
2053 }
2054
2055 /**
2056 Shows the settings menu
2057 */
2058 int settings_menu(void)
2059 {
2060 int selection = 0;
2061 bool old_val;
2062
2063 MENUITEM_STRINGLIST(settings_menu, "PictureFlow Settings", NULL, "Show FPS",
2064 "Spacing", "Centre margin", "Number of slides", "Zoom",
2065 "Show album title", "Resize Covers", "Rebuild cache");
2066
2067 static const struct opt_items album_name_options[] = {
2068 { "Hide album title", -1 },
2069 { "Show at the bottom", -1 },
2070 { "Show at the top", -1 }
2071 };
2072
2073 do {
2074 selection=rb->do_menu(&settings_menu,&selection, NULL, false);
2075 switch(selection) {
2076 case 0:
2077 rb->set_bool("Show FPS", &show_fps);
2078 reset_track_list();
2079 break;
2080
2081 case 1:
2082 rb->set_int("Spacing between slides", "", 1,
2083 &slide_spacing,
2084 NULL, 1, 0, 100, NULL );
2085 recalc_offsets();
2086 reset_slides();
2087 break;
2088
2089 case 2:
2090 rb->set_int("Centre margin", "", 1,
2091 &center_margin,
2092 NULL, 1, 0, 80, NULL );
2093 recalc_offsets();
2094 reset_slides();
2095 break;
2096
2097 case 3:
2098 rb->set_int("Number of slides", "", 1, &num_slides,
2099 NULL, 1, 1, MAX_SLIDES_COUNT, NULL );
2100 recalc_offsets();
2101 reset_slides();
2102 break;
2103
2104 case 4:
2105 rb->set_int("Zoom", "", 1, &zoom,
2106 NULL, 1, 10, 300, NULL );
2107 recalc_offsets();
2108 reset_slides();
2109 break;
2110 case 5:
2111 rb->set_option("Show album title", &show_album_name,
2112 INT, album_name_options, 3, NULL);
2113 reset_track_list();
2114 recalc_offsets();
2115 reset_slides();
2116 break;
2117 case 6:
2118 old_val = resize;
2119 rb->set_bool("Resize Covers", &resize);
2120 if (old_val == resize) /* changed? */
2121 break;
2122 /* fallthrough if changed, since cache needs to be rebuilt */
2123 case 7:
2124 cache_version = 0;
2125 rb->remove(EMPTY_SLIDE);
2126 rb->splash(HZ, "Cache will be rebuilt on next restart");
2127 break;
2128
2129 case MENU_ATTACHED_USB:
2130 return PLUGIN_USB_CONNECTED;
2131 }
2132 } while ( selection >= 0 );
2133 configfile_save(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION);
2134 return 0;
2135 }
2136
2137 /**
2138 Show the main menu
2139 */
2140 enum {
2141 PF_GOTO_WPS,
2142 #if PF_PLAYBACK_CAPABLE
2143 PF_MENU_PLAYBACK_CONTROL,
2144 #endif
2145 PF_MENU_SETTINGS,
2146 PF_MENU_RETURN,
2147 PF_MENU_QUIT,
2148 };
2149
2150 int main_menu(void)
2151 {
2152 int selection = 0;
2153 int result;
2154
2155 #if LCD_DEPTH > 1
2156 rb->lcd_set_foreground(N_BRIGHT(255));
2157 #endif
2158
2159 MENUITEM_STRINGLIST(main_menu,"PictureFlow Main Menu",NULL,
2160 "Go to WPS",
2161 #if PF_PLAYBACK_CAPABLE
2162 "Playback Control",
2163 #endif
2164 "Settings", "Return", "Quit");
2165 while (1) {
2166 switch (rb->do_menu(&main_menu,&selection, NULL, false)) {
2167 case PF_GOTO_WPS: /* WPS */
2168 return -2;
2169 #if PF_PLAYBACK_CAPABLE
2170 case PF_MENU_PLAYBACK_CONTROL: /* Playback Control */
2171 playback_control(NULL);
2172 break;
2173 #endif
2174 case PF_MENU_SETTINGS:
2175 result = settings_menu();
2176 if ( result != 0 ) return result;
2177 break;
2178 case PF_MENU_RETURN:
2179 return 0;
2180 case PF_MENU_QUIT:
2181 return -1;
2182
2183 case MENU_ATTACHED_USB:
2184 return PLUGIN_USB_CONNECTED;
2185
2186 default:
2187 return 0;
2188 }
2189 }
2190 }
2191
2192 /**
2193 Animation step for zooming into the current cover
2194 */
2195 void update_cover_in_animation(void)
2196 {
2197 cover_animation_keyframe++;
2198 if( cover_animation_keyframe < 20 ) {
2199 center_slide.distance-=5;
2200 center_slide.angle+=1;
2201 extra_fade += 13;
2202 }
2203 else if( cover_animation_keyframe < 35 ) {
2204 center_slide.angle+=16;
2205 }
2206 else {
2207 cover_animation_keyframe = 0;
2208 pf_state = pf_show_tracks;
2209 }
2210 }
2211
2212 /**
2213 Animation step for zooming out the current cover
2214 */
2215 void update_cover_out_animation(void)
2216 {
2217 cover_animation_keyframe++;
2218 if( cover_animation_keyframe <= 15 ) {
2219 center_slide.angle-=16;
2220 }
2221 else if( cover_animation_keyframe < 35 ) {
2222 center_slide.distance+=5;
2223 center_slide.angle-=1;
2224 extra_fade -= 13;
2225 }
2226 else {
2227 cover_animation_keyframe = 0;
2228 pf_state = pf_idle;
2229 }
2230 }
2231
2232 /**
2233 Draw a blue gradient at y with height h
2234 */
2235 static inline void draw_gradient(int y, int h)
2236 {
2237 static int r, inc, c;
2238 inc = (100 << 8) / h;
2239 c = 0;
2240 selected_track_pulse = (selected_track_pulse+1) % 10;
2241 int c2 = selected_track_pulse - 5;
2242 for (r=0; r<h; r++) {
2243 #ifdef HAVE_LCD_COLOR
2244 MYLCD(set_foreground)(G_PIX(c2+80-(c >> 9), c2+100-(c >> 9),
2245 c2+250-(c >> 8)));
2246 #else
2247 MYLCD(set_foreground)(G_BRIGHT(c2+160-(c >> 8)));
2248 #endif
2249 MYLCD(hline)(0, LCD_WIDTH, r+y);
2250 if ( r > h/2 )
2251 c-=inc;
2252 else
2253 c+=inc;
2254 }
2255 }
2256
2257
2258 static void track_list_yh(int char_height)
2259 {
2260 switch (show_album_name)
2261 {
2262 case album_name_hide:
2263 track_list_y = (show_fps ? char_height : 0);
2264 track_list_h = LCD_HEIGHT - track_list_y;
2265 break;
2266 case album_name_bottom:
2267 track_list_y = (show_fps ? char_height : 0);
2268 track_list_h = LCD_HEIGHT - track_list_y - char_height * 2;
2269 break;
2270 default: /* case album_name_top */
2271 track_list_y = char_height * 2;
2272 track_list_h = LCD_HEIGHT - track_list_y -
2273 (show_fps ? char_height : 0);
2274 break;
2275 }
2276 }
2277
2278 /**
2279 Reset the track list after a album change
2280 */
2281 void reset_track_list(void)
2282 {
2283 int albumtxt_h = rb->screens[SCREEN_MAIN]->getcharheight();
2284 track_list_yh(albumtxt_h);
2285 track_list_visible_entries = fmin( track_list_h/albumtxt_h , track_count );
2286 start_index_track_list = 0;
2287 track_scroll_index = 0;
2288 track_scroll_dir = 1;
2289 selected_track = 0;
2290
2291 /* let the tracklist start more centered
2292 * if the screen isn't filled with tracks */
2293 if (track_count*albumtxt_h < track_list_h)
2294 {
2295 track_list_h = track_count * albumtxt_h;
2296 track_list_y = LCD_HEIGHT / 2 - (track_list_h / 2);
2297 }
2298 }
2299
2300 /**
2301 Display the list of tracks
2302 */
2303 void show_track_list(void)
2304 {
2305 MYLCD(clear_display)();
2306 if ( center_slide.slide_index != track_index ) {
2307 create_track_index(center_slide.slide_index);
2308 reset_track_list();
2309 }
2310 static int titletxt_w, titletxt_x, color, titletxt_h;
2311 titletxt_h = rb->screens[SCREEN_MAIN]->getcharheight();
2312
2313 int titletxt_y = track_list_y;
2314 int track_i;
2315 track_i = start_index_track_list;
2316 for (;track_i < track_list_visible_entries+start_index_track_list;
2317 track_i++)
2318 {
2319 MYLCD(getstringsize)(get_track_name(track_i), &titletxt_w, NULL);
2320 titletxt_x = (LCD_WIDTH-titletxt_w)/2;
2321 if ( track_i == selected_track ) {
2322 draw_gradient(titletxt_y, titletxt_h);
2323 MYLCD(set_foreground)(G_BRIGHT(255));
2324 if (titletxt_w > LCD_WIDTH ) {
2325 if ( titletxt_w + track_scroll_index <= LCD_WIDTH )
2326 track_scroll_dir = 1;
2327 else if ( track_scroll_index >= 0 ) track_scroll_dir = -1;
2328 track_scroll_index += track_scroll_dir*2;
2329 titletxt_x = track_scroll_index;
2330 }
2331 MYLCD(putsxy)(titletxt_x,titletxt_y,get_track_name(track_i));
2332 }
2333 else {
2334 color = 250 - (abs(selected_track - track_i) * 200 / track_count);
2335 MYLCD(set_foreground)(G_BRIGHT(color));
2336 MYLCD(putsxy)(titletxt_x,titletxt_y,get_track_name(track_i));
2337 }
2338 titletxt_y += titletxt_h;
2339 }
2340 }
2341
2342 void select_next_track(void)
2343 {
2344 if ( selected_track < track_count - 1 ) {
2345 selected_track++;
2346 track_scroll_index = 0;
2347 track_scroll_dir = 1;
2348 if (selected_track==(track_list_visible_entries+start_index_track_list))
2349 start_index_track_list++;
2350 }
2351 }
2352
2353 void select_prev_track(void)
2354 {
2355 if (selected_track > 0 ) {
2356 if (selected_track==start_index_track_list) start_index_track_list--;
2357 track_scroll_index = 0;
2358 track_scroll_dir = 1;
2359 selected_track--;
2360 }
2361 }
2362
2363 #if PF_PLAYBACK_CAPABLE
2364 /*
2365 * Puts the current tracklist into a newly created playlist and starts playling
2366 */
2367 void start_playback(void)
2368 {
2369 static int old_playlist = -1, old_shuffle = 0;
2370 int count = 0;
2371 int position = selected_track;
2372 int shuffle = rb->global_settings->playlist_shuffle;
2373 /* reuse existing playlist if possible
2374 * regenerate if shuffle is on or changed, since playlist index and
2375 * selected track are "out of sync" */
2376 if (!shuffle && center_slide.slide_index == old_playlist
2377 && (old_shuffle == shuffle))
2378 {
2379 goto play;
2380 }
2381 /* First, replace the current playlist with a new one */
2382 else if (rb->playlist_remove_all_tracks(NULL) == 0
2383 && rb->playlist_create(NULL, NULL) == 0)
2384 {
2385 do {
2386 rb->yield();
2387 if (rb->playlist_insert_track(NULL, get_track_filename(count),
2388 PLAYLIST_INSERT_LAST, false, true) < 0)
2389 break;
2390 } while(++count < track_count);
2391 rb->playlist_sync(NULL);
2392 }
2393 else
2394 return;
2395
2396 if (rb->global_settings->playlist_shuffle)
2397 position = rb->playlist_shuffle(*rb->current_tick, selected_track);
2398 play:
2399 /* TODO: can we adjust selected_track if !play_selected ?
2400 * if shuffle, we can't predict the playing track easily, and for either
2401 * case the track list doesn't get auto scrolled*/
2402 rb->playlist_start(position, 0);
2403 old_playlist = center_slide.slide_index;
2404 old_shuffle = shuffle;
2405 }
2406 #endif
2407
2408 /**
2409 Draw the current album name
2410 */
2411 void draw_album_text(void)
2412 {
2413 if (0 == show_album_name)
2414 return;
2415
2416 int albumtxt_w, albumtxt_h;
2417 int albumtxt_y = 0;
2418
2419 char *albumtxt;
2420 int c;
2421 /* Draw album text */
2422 if ( pf_state == pf_scrolling ) {
2423 c = ((slide_frame & 0xffff )/ 255);
2424 if (step < 0) c = 255-c;
2425 if (c > 128 ) { /* half way to next slide .. still not perfect! */
2426 albumtxt = get_album_name(center_index+step);
2427 c = (c-128)*2;
2428 }
2429 else {
2430 albumtxt = get_album_name(center_index);
2431 c = (128-c)*2;
2432 }
2433 }
2434 else {
2435 c= 255;
2436 albumtxt = get_album_name(center_index);
2437 }
2438
2439 MYLCD(set_foreground)(G_BRIGHT(c));
2440 MYLCD(getstringsize)(albumtxt, &albumtxt_w, &albumtxt_h);
2441 if (center_index != prev_center_index) {
2442 albumtxt_x = 0;
2443 albumtxt_dir = -1;
2444 prev_center_index = center_index;
2445 }
2446
2447 if (show_album_name == album_name_top)
2448 albumtxt_y = albumtxt_h / 2;
2449 else
2450 albumtxt_y = LCD_HEIGHT - albumtxt_h - albumtxt_h/2;
2451
2452 if (albumtxt_w > LCD_WIDTH ) {
2453 MYLCD(putsxy)(albumtxt_x, albumtxt_y , albumtxt);
2454 if ( pf_state == pf_idle || pf_state == pf_show_tracks ) {
2455 if ( albumtxt_w + albumtxt_x <= LCD_WIDTH ) albumtxt_dir = 1;
2456 else if ( albumtxt_x >= 0 ) albumtxt_dir = -1;
2457 albumtxt_x += albumtxt_dir;
2458 }
2459 }
2460 else {
2461 MYLCD(putsxy)((LCD_WIDTH - albumtxt_w) /2, albumtxt_y , albumtxt);
2462 }
2463
2464
2465 }
2466
2467 /**
2468 Display an error message and wait for input.
2469 */
2470 void error_wait(const char *message)
2471 {
2472 rb->splashf(0, "%s. Press any button to continue.", message);
2473 while (rb->get_action(CONTEXT_STD, 1) == ACTION_NONE)
2474 rb->yield();
2475 rb->sleep(2 * HZ);
2476 }
2477
2478 /**
2479 Main function that also contain the main plasma
2480 algorithm.
2481 */
2482 int main(void)
2483 {
2484 int ret;
2485
2486 rb->lcd_setfont(FONT_UI);
2487 draw_splashscreen();
2488
2489 if ( ! rb->dir_exists( CACHE_PREFIX ) ) {
2490 if ( rb->mkdir( CACHE_PREFIX ) < 0 ) {
2491 error_wait("Could not create directory " CACHE_PREFIX);
2492 return PLUGIN_ERROR;
2493 }
2494 }
2495
2496 configfile_load(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION);
2497
2498 init_reflect_table();
2499
2500 ALIGN_BUFFER(buf, buf_size, 4);
2501 ret = create_album_index();
2502 if (ret == ERROR_BUFFER_FULL) {
2503 error_wait("Not enough memory for album names");
2504 return PLUGIN_ERROR;
2505 } else if (ret == ERROR_NO_ALBUMS) {
2506 error_wait("No albums found. Please enable database");
2507 return PLUGIN_ERROR;
2508 }
2509
2510 ALIGN_BUFFER(buf, buf_size, 4);
2511 number_of_slides = album_count;
2512 if ((cache_version != CACHE_VERSION) && !create_albumart_cache()) {
2513 error_wait("Could not create album art cache");
2514 return PLUGIN_ERROR;
2515 }
2516
2517 if (!create_empty_slide(cache_version != CACHE_VERSION)) {
2518 error_wait("Could not load the empty slide");
2519 return PLUGIN_ERROR;
2520 }
2521 cache_version = CACHE_VERSION;
2522 configfile_save(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION);
2523
2524
2525 #ifdef USEGSLIB
2526 long grey_buf_used;
2527 if (!grey_init(buf, buf_size, GREY_BUFFERED|GREY_ON_COP,
2528 LCD_WIDTH, LCD_HEIGHT, &grey_buf_used))
2529 {
2530 error_wait("Greylib init failed!");
2531 return PLUGIN_ERROR;
2532 }
2533 grey_setfont(FONT_UI);
2534 buf_size -= grey_buf_used;
2535 buf = (void*)(grey_buf_used + (char*)buf);
2536 #endif
2537 buflib_init(&buf_ctx, (void *)buf, buf_size);
2538
2539 if (!(empty_slide_hid = read_pfraw(EMPTY_SLIDE, 0)))
2540 {
2541 error_wait("Unable to load empty slide image");
2542 return PLUGIN_ERROR;
2543 }
2544
2545 if (!create_pf_thread()) {
2546 error_wait("Cannot create thread!");
2547 return PLUGIN_ERROR;
2548 }
2549
2550 int i;
2551
2552 /* initialize */
2553 for (i = 0; i < SLIDE_CACHE_SIZE; i++) {
2554 cache[i].hid = 0;
2555 cache[i].index = 0;
2556 cache[i].next = i + 1;
2557 cache[i].prev = i - 1;
2558 }
2559 cache[0].prev = i - 1;
2560 cache[i - 1].next = 0;
2561 cache_free = 0;
2562 buffer = LCD_BUF;
2563
2564 pf_state = pf_idle;
2565
2566 track_index = -1;
2567 extra_fade = 0;
2568 slide_frame = 0;
2569 step = 0;
2570 target = 0;
2571 fade = 256;
2572
2573 recalc_offsets();
2574 reset_slides();
2575
2576 char fpstxt[10];
2577 int button;
2578
2579 int frames = 0;
2580 long last_update = *rb->current_tick;
2581 long current_update;
2582 long update_interval = 100;
2583 int fps = 0;
2584 int fpstxt_y;
2585
2586 bool instant_update;
2587 #ifdef USEGSLIB
2588 grey_show(true);
2589 grey_set_drawmode(DRMODE_FG);
2590 #endif
2591 rb->lcd_set_drawmode(DRMODE_FG);
2592 while (true) {
2593 current_update = *rb->current_tick;
2594 frames++;
2595
2596 /* Initial rendering */
2597 instant_update = false;
2598
2599 /* Handle states */
2600 switch ( pf_state ) {
2601 case pf_scrolling:
2602 update_scroll_animation();
2603 render_all_slides();
2604 instant_update = true;
2605 break;
2606 case pf_cover_in:
2607 update_cover_in_animation();
2608 render_all_slides();
2609 instant_update = true;
2610 break;
2611 case pf_cover_out:
2612 update_cover_out_animation();
2613 render_all_slides();
2614 instant_update = true;
2615 break;
2616 case pf_show_tracks:
2617 show_track_list();
2618 break;
2619 case pf_idle:
2620 render_all_slides();
2621 break;
2622 }
2623
2624 /* Calculate FPS */
2625 if (current_update - last_update > update_interval) {
2626 fps = frames * HZ / (current_update - last_update);
2627 last_update = current_update;
2628 frames = 0;
2629 }
2630 /* Draw FPS */
2631 if (show_fps)
2632 {
2633 #ifdef USEGSLIB
2634 MYLCD(set_foreground)(G_BRIGHT(255));
2635 #else
2636 MYLCD(set_foreground)(G_PIX(255,0,0));
2637 #endif
2638 rb->snprintf(fpstxt, sizeof(fpstxt), "FPS: %d", fps);
2639 if (show_album_name == album_name_top)
2640 fpstxt_y = LCD_HEIGHT -
2641 rb->screens[SCREEN_MAIN]->getcharheight();
2642 else
2643 fpstxt_y = 0;
2644 MYLCD(putsxy)(0, fpstxt_y, fpstxt);
2645 }
2646 draw_album_text();
2647
2648
2649 /* Copy offscreen buffer to LCD and give time to other threads */
2650 MYLCD(update)();
2651 rb->yield();
2652
2653 /*/ Handle buttons */
2654 button = rb->get_custom_action(CONTEXT_PLUGIN
2655 #ifndef USE_CORE_PREVNEXT
2656 |(pf_state == pf_show_tracks ? 1 : 0)
2657 #endif
2658 ,instant_update ? 0 : HZ/16,
2659 get_context_map);
2660
2661 switch (button) {
2662 case PF_QUIT:
2663 return PLUGIN_OK;
2664 case PF_WPS:
2665 return PLUGIN_GOTO_WPS;
2666 case PF_BACK:
2667 if ( pf_state == pf_show_tracks )
2668 {
2669 buflib_buffer_in(&buf_ctx, borrowed);
2670 borrowed = 0;
2671 track_index = -1;
2672 pf_state = pf_cover_out;
2673 }
2674 if (pf_state == pf_idle || pf_state == pf_scrolling)
2675 return PLUGIN_OK;
2676 break;
2677 case PF_MENU:
2678 #ifdef USEGSLIB
2679 grey_show(false);
2680 #endif
2681 ret = main_menu();
2682 if ( ret == -2 ) return PLUGIN_GOTO_WPS;
2683 if ( ret == -1 ) return PLUGIN_OK;
2684 if ( ret != 0 ) return ret;
2685 #ifdef USEGSLIB
2686 grey_show(true);
2687 #endif
2688 MYLCD(set_drawmode)(DRMODE_FG);
2689 break;
2690
2691 case PF_NEXT:
2692 case PF_NEXT_REPEAT:
2693 if ( pf_state == pf_show_tracks )
2694 select_next_track();
2695 if ( pf_state == pf_idle || pf_state == pf_scrolling )
2696 show_next_slide();
2697 break;
2698
2699 case PF_PREV:
2700 case PF_PREV_REPEAT:
2701 if ( pf_state == pf_show_tracks )
2702 select_prev_track();
2703 if ( pf_state == pf_idle || pf_state == pf_scrolling )
2704 show_previous_slide();
2705 break;
2706
2707 case PF_SELECT:
2708 if ( pf_state == pf_idle ) {
2709 pf_state = pf_cover_in;
2710 }
2711 else if ( pf_state == pf_show_tracks ) {
2712 #if PF_PLAYBACK_CAPABLE
2713 start_playback();
2714 #endif
2715 }
2716 break;
2717 default:
2718 if (rb->default_event_handler_ex(button, cleanup, NULL)
2719 == SYS_USB_CONNECTED)
2720 return PLUGIN_USB_CONNECTED;
2721 break;
2722 }
2723 }
2724 }
2725
2726 /*************************** Plugin entry point ****************************/
2727
2728 enum plugin_status plugin_start(const void *parameter)
2729 {
2730 int ret;
2731 (void) parameter;
2732 #if LCD_DEPTH > 1
2733 rb->lcd_set_backdrop(NULL);
2734 #endif
2735 /* Turn off backlight timeout */
2736 backlight_force_on(); /* backlight control in lib/helper.c */
2737 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
2738 rb->cpu_boost(true);
2739 #endif
2740 #if PF_PLAYBACK_CAPABLE
2741 buf = rb->plugin_get_buffer(&buf_size);
2742 #else
2743 buf = rb->plugin_get_audio_buffer(&buf_size);
2744 #ifndef SIMULATOR
2745 if ((uintptr_t)buf < (uintptr_t)plugin_start_addr)
2746 {
2747 uint32_t tmp_size = (uintptr_t)plugin_start_addr - (uintptr_t)buf;
2748 buf_size = MIN(buf_size, tmp_size);
2749 }
2750 #endif
2751 #endif
2752 ret = main();
2753 if ( ret == PLUGIN_OK ) {
2754 if (configfile_save(CONFIG_FILE, config, CONFIG_NUM_ITEMS,
2755 CONFIG_VERSION))
2756 {
2757 rb->splash(HZ, "Error writing config.");
2758 ret = PLUGIN_ERROR;
2759 }
2760 }
2761
2762 cleanup(NULL);
2763 return ret;
2764 }