1 /***************************************************************************
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
12 * My crack at making a 80's style retro plasma effect for the fantastic
14 * Okay, I could've hard-coded the sine wave values, I just wanted the
15 * challange of calculating them! silly: maybe, fun: yes!
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License
19 * as published by the Free Software Foundation; either version 2
20 * of the License, or (at your option) any later version.
22 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
23 * KIND, either express or implied.
25 ****************************************************************************/
28 #include "lib/helper.h"
30 #ifdef HAVE_LCD_BITMAP
32 #ifndef HAVE_LCD_COLOR
35 #include "lib/fixedpoint.h"
39 /******************************* Globals ***********************************/
41 static unsigned char wave_array
[256]; /* Pre calculated wave array */
43 static fb_data colours
[256]; /* Smooth transition of shades */
44 static int redfactor
= 1, greenfactor
= 2, bluefactor
= 3;
45 static int redphase
= 0, greenphase
= 50, bluephase
= 100;
46 /* lower chance of gray at regular intervals */
49 static unsigned char colours
[256]; /* Smooth transition of shades */
50 static unsigned char greybuffer
[LCD_HEIGHT
*LCD_WIDTH
]; /* off screen buffer */
51 static unsigned char *gbuf
;
52 static size_t gbuf_size
= 0;
54 static unsigned char sp1
, sp2
, sp3
, sp4
; /* Speed of plasma */
55 static int plasma_frequency
;
56 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
57 static bool boosted
= false;
60 /* Key assignement, all bitmapped models */
61 #if (CONFIG_KEYPAD == RECORDER_PAD) || (CONFIG_KEYPAD == ONDIO_PAD)
62 #define PLASMA_QUIT BUTTON_OFF
63 #define PLASMA_INCREASE_FREQUENCY BUTTON_UP
64 #define PLASMA_DECREASE_FREQUENCY BUTTON_DOWN
66 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || (CONFIG_KEYPAD == IRIVER_H300_PAD)
67 #define PLASMA_QUIT BUTTON_OFF
68 #define PLASMA_INCREASE_FREQUENCY BUTTON_UP
69 #define PLASMA_DECREASE_FREQUENCY BUTTON_DOWN
70 #define PLASMA_REGEN_COLORS BUTTON_SELECT
71 #define PLASMA_RC_QUIT BUTTON_RC_STOP
73 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD) || \
74 (CONFIG_KEYPAD == IPOD_1G2G_PAD)
75 #define PLASMA_QUIT BUTTON_MENU
76 #define PLASMA_INCREASE_FREQUENCY BUTTON_SCROLL_FWD
77 #define PLASMA_DECREASE_FREQUENCY BUTTON_SCROLL_BACK
78 #define PLASMA_REGEN_COLORS BUTTON_SELECT
80 #elif (CONFIG_KEYPAD == GIGABEAT_PAD)
81 #define PLASMA_QUIT BUTTON_POWER
82 #define PLASMA_INCREASE_FREQUENCY BUTTON_UP
83 #define PLASMA_DECREASE_FREQUENCY BUTTON_DOWN
84 #define PLASMA_REGEN_COLORS BUTTON_SELECT
86 #elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \
87 (CONFIG_KEYPAD == SANSA_C200_PAD) || \
88 (CONFIG_KEYPAD == SANSA_CLIP_PAD) || \
89 (CONFIG_KEYPAD == SANSA_M200_PAD)
90 #define PLASMA_QUIT BUTTON_POWER
91 #define PLASMA_INCREASE_FREQUENCY BUTTON_UP
92 #define PLASMA_DECREASE_FREQUENCY BUTTON_DOWN
93 #define PLASMA_REGEN_COLORS BUTTON_SELECT
95 #elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
96 #define PLASMA_QUIT (BUTTON_HOME|BUTTON_REPEAT)
97 #define PLASMA_INCREASE_FREQUENCY BUTTON_UP
98 #define PLASMA_DECREASE_FREQUENCY BUTTON_DOWN
99 #define PLASMA_REGEN_COLORS BUTTON_SELECT
101 #elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD)
102 #define PLASMA_QUIT BUTTON_POWER
103 #define PLASMA_INCREASE_FREQUENCY BUTTON_UP
104 #define PLASMA_DECREASE_FREQUENCY BUTTON_DOWN
105 #define PLASMA_REGEN_COLORS BUTTON_PLAY
107 #elif (CONFIG_KEYPAD == IRIVER_H10_PAD)
108 #define PLASMA_QUIT BUTTON_POWER
109 #define PLASMA_INCREASE_FREQUENCY BUTTON_SCROLL_UP
110 #define PLASMA_DECREASE_FREQUENCY BUTTON_SCROLL_DOWN
111 #define PLASMA_REGEN_COLORS BUTTON_PLAY
113 #elif (CONFIG_KEYPAD == GIGABEAT_S_PAD)
114 #define PLASMA_QUIT BUTTON_BACK
115 #define PLASMA_INCREASE_FREQUENCY BUTTON_UP
116 #define PLASMA_DECREASE_FREQUENCY BUTTON_DOWN
117 #define PLASMA_REGEN_COLORS BUTTON_SELECT
119 #elif (CONFIG_KEYPAD == MROBE100_PAD)
120 #define PLASMA_QUIT BUTTON_POWER
121 #define PLASMA_INCREASE_FREQUENCY BUTTON_UP
122 #define PLASMA_DECREASE_FREQUENCY BUTTON_DOWN
124 #elif (CONFIG_KEYPAD == IAUDIO_M3_PAD)
125 #define PLASMA_QUIT BUTTON_RC_REC
126 #define PLASMA_INCREASE_FREQUENCY BUTTON_RC_VOL_UP
127 #define PLASMA_DECREASE_FREQUENCY BUTTON_RC_VOL_DOWN
128 #define PLASMA_RC_QUIT BUTTON_REC
130 #elif (CONFIG_KEYPAD == COWON_D2_PAD)
131 #define PLASMA_QUIT BUTTON_POWER
133 #elif (CONFIG_KEYPAD == IAUDIO67_PAD)
134 #define PLASMA_QUIT BUTTON_POWER
135 #define PLASMA_INCREASE_FREQUENCY BUTTON_RIGHT
136 #define PLASMA_DECREASE_FREQUENCY BUTTON_LEFT
137 #define PLASMA_REGEN_COLORS BUTTON_PLAY
138 #define PLASMA_RC_QUIT BUTTON_STOP
140 #elif CONFIG_KEYPAD == CREATIVEZVM_PAD
141 #define PLASMA_QUIT BUTTON_BACK
142 #define PLASMA_INCREASE_FREQUENCY BUTTON_UP
143 #define PLASMA_DECREASE_FREQUENCY BUTTON_DOWN
144 #define PLASMA_REGEN_COLORS BUTTON_SELECT
146 #elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
147 #define PLASMA_QUIT BUTTON_POWER
148 #define PLASMA_INCREASE_FREQUENCY BUTTON_UP
149 #define PLASMA_DECREASE_FREQUENCY BUTTON_DOWN
150 #define PLASMA_REGEN_COLORS BUTTON_SELECT
152 #elif CONFIG_KEYPAD == PHILIPS_SA9200_PAD
153 #define PLASMA_QUIT BUTTON_POWER
154 #define PLASMA_INCREASE_FREQUENCY BUTTON_UP
155 #define PLASMA_DECREASE_FREQUENCY BUTTON_DOWN
156 #define PLASMA_REGEN_COLORS BUTTON_PLAY
158 #elif (CONFIG_KEYPAD == ONDAVX747_PAD) || (CONFIG_KEYPAD == ONDAVX777_PAD)
159 #define PLASMA_QUIT BUTTON_POWER
161 #elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
162 #define PLASMA_QUIT BUTTON_PLAY
163 #define PLASMA_INCREASE_FREQUENCY BUTTON_UP
164 #define PLASMA_DECREASE_FREQUENCY BUTTON_DOWN
165 #define PLASMA_REGEN_COLORS BUTTON_LEFT
169 #ifdef HAVE_TOUCHSCREEN
171 #define PLASMA_QUIT BUTTON_TOPLEFT
173 #ifndef PLASMA_INCREASE_FREQUENCY
174 #define PLASMA_INCREASE_FREQUENCY BUTTON_MIDRIGHT
176 #ifndef PLASMA_DECREASE_FREQUENCY
177 #define PLASMA_DECREASE_FREQUENCY BUTTON_MIDLEFT
179 #ifdef HAVE_LCD_COLOR
180 #ifndef PLASMA_REGEN_COLORS
181 #define PLASMA_REGEN_COLORS BUTTON_CENTER
183 #endif /* HAVE_LCD_COLOR */
184 #endif /* HAVE_TOUCHSCREEN */
189 * Main wave function so we don't have to re-calc the sine
190 * curve every time. Mess around WAV_AMP and FREQ to make slighlty
191 * weirder looking plasmas!
194 static void wave_table_generate(void)
199 wave_array
[i
] = (unsigned char)((WAV_AMP
200 * (fp14_sin((i
* 360 * plasma_frequency
) / 256))) / 16384);
204 #ifdef HAVE_LCD_COLOR
205 /* Make a smooth colour cycle. */
206 void shades_generate(int time
)
209 unsigned red
, green
, blue
;
210 unsigned r
= time
* redfactor
+ redphase
;
211 unsigned g
= time
* greenfactor
+ greenphase
;
212 unsigned b
= time
* bluefactor
+ bluephase
;
214 for(i
=0; i
< 256; ++i
)
216 r
&= 0xFF; g
&= 0xFF; b
&= 0xFF;
228 colours
[i
] = LCD_RGBPACK(red
, green
, blue
);
232 #if defined(HAVE_LCD_MODES) && (HAVE_LCD_MODES & LCD_MODE_PAL256)
233 rb
->lcd_pal256_update_pal(colours
);
237 /* Make a smooth shade from black into white and back into black again. */
238 static void shades_generate(void)
242 for(i
=0; i
< 256; ++i
)
252 void cleanup(void *parameter
)
256 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
258 rb
->cpu_boost(false);
260 #ifndef HAVE_LCD_COLOR
263 /* Turn on backlight timeout (revert to settings) */
264 backlight_use_settings(); /* backlight control in lib/helper.c */
268 * Main function that also contain the main plasma
274 plasma_frequency
= 1;
275 int button
, delay
, x
, y
;
276 unsigned char p1
,p2
,p3
,p4
,t1
,t2
,t3
,t4
, z
,z0
;
277 long last_tick
= *rb
->current_tick
;
278 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
279 int cumulated_lag
= 0;
281 #ifdef HAVE_LCD_COLOR
282 #if defined(HAVE_LCD_MODES) && (HAVE_LCD_MODES & LCD_MODE_PAL256)
292 /*Generate the neccesary pre calced stuff*/
293 wave_table_generate();
295 #ifndef HAVE_LCD_COLOR
296 shades_generate(); /* statically */
298 /* get the remainder of the plugin buffer */
299 gbuf
= (unsigned char *) rb
->plugin_get_buffer(&gbuf_size
);
301 grey_init(gbuf
, gbuf_size
, GREY_ON_COP
, LCD_WIDTH
, LCD_HEIGHT
, NULL
);
302 /* switch on greyscale overlay */
312 #ifdef HAVE_LCD_COLOR
313 shades_generate(time
++); /* dynamically */
314 #if defined(HAVE_LCD_MODES) && (HAVE_LCD_MODES & LCD_MODE_PAL256)
315 ptr
= (unsigned char*)rb
->lcd_framebuffer
;
317 ptr
= rb
->lcd_framebuffer
;
325 for(y
= 0; y
< LCD_HEIGHT
; ++y
)
329 z0
= wave_array
[t1
] + wave_array
[t2
];
330 for(x
= 0; x
< LCD_WIDTH
; ++x
)
332 z
= z0
+ wave_array
[t3
] + wave_array
[t4
];
333 #if defined(HAVE_LCD_MODES) && (HAVE_LCD_MODES & LCD_MODE_PAL256)
349 #ifdef HAVE_LCD_COLOR
350 #if defined(HAVE_LCD_MODES) && (HAVE_LCD_MODES & LCD_MODE_PAL256)
351 rb
->lcd_blit_pal256( (unsigned char*)rb
->lcd_framebuffer
,
352 0,0,0,0,LCD_WIDTH
,LCD_HEIGHT
);
357 grey_ub_gray_bitmap(greybuffer
, 0, 0, LCD_WIDTH
, LCD_HEIGHT
);
360 delay
= last_tick
- *rb
->current_tick
+ HZ
/33;
361 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
362 if (!boosted
&& delay
< 0)
364 cumulated_lag
-= delay
; /* proportional increase */
365 if (cumulated_lag
>= HZ
)
366 rb
->cpu_boost(boosted
= true);
368 else if (boosted
&& delay
> 1) /* account for jitter */
370 if (--cumulated_lag
<= 0) /* slow decrease */
371 rb
->cpu_boost(boosted
= false);
374 button
= rb
->button_get_w_tmo(MAX(0, delay
));
375 last_tick
= *rb
->current_tick
;
379 #ifdef PLASMA_RC_QUIT
387 case (PLASMA_INCREASE_FREQUENCY
):
389 wave_table_generate();
392 case (PLASMA_DECREASE_FREQUENCY
):
393 if(plasma_frequency
>1)
396 wave_table_generate();
399 #ifdef HAVE_LCD_COLOR
400 case (PLASMA_REGEN_COLORS
):
401 redfactor
=rb
->rand()%4;
402 greenfactor
=rb
->rand()%4;
403 bluefactor
=rb
->rand()%4;
404 redphase
=rb
->rand()%256;
405 greenphase
=rb
->rand()%256;
406 bluephase
=rb
->rand()%256;
411 if (rb
->default_event_handler_ex(button
, cleanup
, NULL
)
412 == SYS_USB_CONNECTED
)
413 return PLUGIN_USB_CONNECTED
;
419 /*************************** Plugin entry point ****************************/
421 enum plugin_status
plugin_start(const void* parameter
)
427 rb
->lcd_set_backdrop(NULL
);
429 /* Turn off backlight timeout */
430 backlight_force_on(); /* backlight control in lib/helper.c */
432 #if defined(HAVE_LCD_MODES) && (HAVE_LCD_MODES & LCD_MODE_PAL256)
433 rb
->lcd_set_mode(LCD_MODE_PAL256
);
438 #if defined(HAVE_LCD_MODES) && (HAVE_LCD_MODES & LCD_MODE_PAL256)
439 rb
->lcd_set_mode(LCD_MODE_RGB565
);
445 #endif /* HAVE_LCD_BITMAP */