/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2005 Kevin Ferrare * * Fire demo plugin * * All files in this archive are subject to the GNU General Public License. * See the file COPYING in the source tree root for full license agreement. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #include "plugin.h" #ifdef HAVE_LCD_BITMAP /* and also not for the Player */ #ifndef HAVE_LCD_COLOR #include "gray.h" #endif PLUGIN_HEADER /******************************* Globals ***********************************/ static struct plugin_api* rb; /* global api struct pointer */ static unsigned char *gbuf; static unsigned int gbuf_size = 0; static unsigned char fire[LCD_HEIGHT+3][LCD_WIDTH]; static unsigned char cooling_map[LCD_HEIGHT][LCD_WIDTH]; #ifndef HAVE_LCD_COLOR static unsigned char draw_buffer[8*LCD_WIDTH]; #endif /* Key assignement */ #if (CONFIG_KEYPAD == IRIVER_H100_PAD) || (CONFIG_KEYPAD == IRIVER_H300_PAD) #define FIRE_QUIT BUTTON_OFF #define FIRE_SWITCH_FLAMES_TYPE BUTTON_MODE #define FIRE_SWITCH_FLAMES_MOVING BUTTON_REC #define FIRE_INCREASE_MULT BUTTON_UP #define FIRE_DECREASE_MULT BUTTON_DOWN #elif CONFIG_KEYPAD == RECORDER_PAD #define FIRE_QUIT BUTTON_OFF #define FIRE_SWITCH_FLAMES_TYPE BUTTON_ON #define FIRE_SWITCH_FLAMES_MOVING BUTTON_PLAY #define FIRE_INCREASE_MULT BUTTON_UP #define FIRE_DECREASE_MULT BUTTON_DOWN #elif CONFIG_KEYPAD == ONDIO_PAD #define FIRE_QUIT BUTTON_OFF #define FIRE_SWITCH_FLAMES_TYPE BUTTON_MENU #define FIRE_SWITCH_FLAMES_MOVING BUTTON_RIGHT #define FIRE_INCREASE_MULT BUTTON_UP #define FIRE_DECREASE_MULT BUTTON_DOWN #elif (CONFIG_KEYPAD == IPOD_3G_PAD) || (CONFIG_KEYPAD == IPOD_4G_PAD) #define FIRE_QUIT BUTTON_MENU #define FIRE_SWITCH_FLAMES_TYPE BUTTON_SELECT #define FIRE_SWITCH_FLAMES_MOVING BUTTON_RIGHT #define FIRE_INCREASE_MULT BUTTON_SCROLL_FWD #define FIRE_DECREASE_MULT BUTTON_SCROLL_BACK #elif (CONFIG_KEYPAD == IAUDIO_X5_PAD) #define FIRE_QUIT BUTTON_POWER #define FIRE_SWITCH_FLAMES_TYPE BUTTON_LEFT #define FIRE_SWITCH_FLAMES_MOVING BUTTON_RIGHT #define FIRE_INCREASE_MULT BUTTON_UP #define FIRE_DECREASE_MULT BUTTON_DOWN #elif (CONFIG_KEYPAD == GIGABEAT_PAD) #define FIRE_QUIT BUTTON_A #define FIRE_SWITCH_FLAMES_TYPE BUTTON_LEFT #define FIRE_SWITCH_FLAMES_MOVING BUTTON_RIGHT #define FIRE_INCREASE_MULT BUTTON_UP #define FIRE_DECREASE_MULT BUTTON_DOWN #endif #define MIN_FLAME_VALUE 0 #if LCD_HEIGHT > 64 #define COOL_MAX 5 #else #define COOL_MAX 8 #endif /* unsigned 16 bit multiplication (a single instruction on the SH) */ #define MULU16(a, b) ((unsigned long) \ (((unsigned short) (a)) * ((unsigned short) (b)))) #ifndef HAVE_LCD_COLOR static const unsigned char palette[255]= {/* logarithmic histogram equalisation */ 0, 15, 31, 50, 63, 74, 82, 89, 95, 101, 105, 110, 114, 118, 121, 124, 127, 130, 133, 135, 137, 140, 142, 144, 146, 148, 149, 151, 153, 154, 156, 158, 159, 160, 162, 163, 164, 166, 167, 168, 169, 170, 172, 173, 174, 175, 176, 177, 178, 179, 180, 180, 181, 182, 183, 184, 185, 186, 186, 187, 188, 189, 189, 190, 191, 192, 192, 193, 194, 194, 195, 196, 196, 197, 198, 198, 199, 199, 200, 201, 201, 202, 202, 203, 203, 204, 204, 205, 206, 206, 207, 207, 208, 208, 209, 209, 210, 210, 210, 211, 211, 212, 212, 213, 213, 214, 214, 215, 215, 215, 216, 216, 217, 217, 217, 218, 218, 219, 219, 219, 220, 220, 221, 221, 221, 222, 222, 222, 223, 223, 223, 224, 224, 225, 225, 225, 226, 226, 226, 227, 227, 227, 228, 228, 228, 229, 229, 229, 229, 230, 230, 230, 231, 231, 231, 232, 232, 232, 232, 233, 233, 233, 234, 234, 234, 234, 235, 235, 235, 236, 236, 236, 236, 237, 237, 237, 237, 238, 238, 238, 238, 239, 239, 239, 239, 240, 240, 240, 240, 241, 241, 241, 241, 242, 242, 242, 242, 243, 243, 243, 243, 244, 244, 244, 244, 244, 245, 245, 245, 245, 246, 246, 246, 246, 246, 247, 247, 247, 247, 247, 248, 248, 248, 248, 249, 249, 249, 249, 249, 250, 250, 250, 250, 250, 251, 251, 251, 251, 251, 252, 252, 252, 252, 252, 252, 253, 253, 253, 253, 253, 254, 254, 254, 254, 254 }; #else #define L(r,g,b) LCD_RGBPACK(r,g,b) static const fb_data colorpalette[256] = { L(248,246,211), L(248,246,203), L(248,245,196), L(248,245,189), L(247,245,182), L(248,245,174), L(248,244,167), L(248,244,160), L(248,243,153), L(247,243,145), L(248,243,138), L(247,243,131), L(247,243,125), L(248,242,117), L(248,242,110), L(247,242,102), L(248,241, 94), L(247,240, 85), L(247,241, 78), L(248,240, 70), L(247,239, 63), L(247,240, 55), L(247,239, 47), L(247,239, 39), L(247,238, 31), L(247,238, 23), L(247,236, 19), L(248,232, 21), L(248,228, 22), L(248,224, 23), L(248,219, 25), L(249,215, 26), L(249,211, 27), L(249,206, 29), L(249,203, 30), L(249,199, 31), L(250,194, 33), L(250,190, 34), L(251,186, 35), L(251,181, 37), L(252,177, 38), L(251,172, 40), L(252,168, 41), L(252,163, 42), L(253,158, 44), L(253,154, 45), L(253,149, 46), L(254,145, 48), L(253,141, 50), L(253,137, 49), L(253,135, 49), L(252,133, 48), L(251,130, 47), L(249,129, 47), L(248,128, 46), L(247,125, 46), L(247,124, 44), L(246,122, 44), L(244,119, 43), L(243,118, 43), L(242,115, 42), L(242,113, 41), L(241,112, 40), L(240,109, 39), L(238,107, 39), L(237,105, 38), L(236,103, 37), L(235,101, 37), L(234, 99, 36), L(233, 97, 35), L(232, 95, 34), L(231, 93, 33), L(230, 91, 32), L(229, 89, 32), L(228, 86, 31), L(227, 85, 30), L(226, 82, 29), L(225, 80, 29), L(224, 78, 28), L(223, 76, 28), L(222, 74, 26), L(221, 72, 26), L(220, 69, 25), L(218, 67, 24), L(217, 64, 23), L(215, 60, 22), L(213, 57, 21), L(212, 54, 19), L(210, 50, 18), L(208, 47, 17), L(207, 44, 16), L(205, 41, 14), L(203, 37, 13), L(202, 34, 12), L(201, 30, 11), L(199, 27, 10), L(197, 24, 9), L(196, 21, 8), L(194, 18, 7), L(192, 14, 5), L(191, 11, 4), L(189, 8, 3), L(187, 5, 1), L(186, 2, 0), L(184, 0, 0), L(181, 0, 0), L(178, 0, 0), L(175, 0, 0), L(172, 0, 0), L(170, 0, 0), L(167, 0, 0), L(165, 0, 0), L(162, 0, 0), L(159, 0, 0), L(156, 0, 0), L(153, 0, 0), L(152, 0, 0), L(149, 0, 0), L(146, 0, 0), L(143, 0, 0), L(141, 0, 0), L(138, 0, 0), L(135, 0, 0), L(132, 0, 0), L(129, 0, 0), L(127, 0, 0), L(126, 0, 0), L(123, 0, 0), L(120, 0, 0), L(117, 0, 0), L(115, 0, 0), L(112, 0, 0), L(109, 0, 0), L(106, 0, 0), L(104, 0, 0), L(101, 0, 0), L( 98, 0, 0), L( 95, 0, 0), L( 93, 0, 0), L( 92, 0, 0), L( 91, 0, 0), L( 91, 0, 0), L( 90, 0, 0), L( 89, 0, 0), L( 88, 0, 0), L( 88, 0, 0), L( 87, 0, 0), L( 86, 0, 0), L( 85, 0, 0), L( 84, 0, 0), L( 84, 0, 0), L( 82, 0, 0), L( 82, 0, 0), L( 81, 0, 0), L( 80, 0, 0), L( 80, 0, 0), L( 79, 0, 0), L( 78, 0, 0), L( 77, 0, 0), L( 76, 0, 0), L( 76, 0, 0), L( 75, 0, 0), L( 74, 0, 0), L( 73, 0, 0), L( 72, 0, 0), L( 72, 0, 0), L( 71, 0, 0), L( 70, 0, 0), L( 69, 0, 0), L( 68, 0, 0), L( 68, 0, 0), L( 67, 0, 0), L( 66, 0, 0), L( 65, 0, 0), L( 65, 0, 0), L( 63, 0, 0), L( 62, 0, 0), L( 62, 0, 0), L( 61, 0, 0), L( 60, 0, 0), L( 59, 0, 0), L( 58, 0, 0), L( 58, 0, 0), L( 58, 0, 0), L( 57, 0, 0), L( 56, 0, 0), L( 54, 0, 0), L( 54, 0, 0), L( 53, 0, 0), L( 52, 0, 0), L( 52, 0, 0), L( 51, 0, 0), L( 50, 0, 0), L( 49, 0, 0), L( 48, 0, 0), L( 47, 0, 0), L( 47, 0, 0), L( 46, 0, 0), L( 45, 0, 0), L( 44, 0, 0), L( 44, 0, 0), L( 43, 0, 0), L( 42, 0, 0), L( 42, 0, 0), L( 40, 0, 0), L( 40, 0, 0), L( 39, 0, 0), L( 38, 0, 0), L( 38, 0, 0), L( 37, 0, 0), L( 36, 0, 0), L( 35, 0, 0), L( 34, 0, 0), L( 33, 0, 0), L( 32, 0, 0), L( 32, 0, 0), L( 31, 0, 0), L( 30, 0, 0), L( 30, 0, 0), L( 28, 0, 0), L( 28, 0, 0), L( 27, 0, 0), L( 26, 0, 0), L( 25, 0, 0), L( 25, 0, 0), L( 23, 0, 0), L( 23, 0, 0), L( 22, 0, 0), L( 21, 0, 0), L( 21, 0, 0), L( 20, 0, 0), L( 19, 0, 0), L( 18, 0, 0), L( 18, 0, 0), L( 16, 0, 0), L( 16, 0, 0), L( 15, 0, 0), L( 14, 0, 0), L( 14, 0, 0), L( 13, 0, 0), L( 12, 0, 0), L( 11, 0, 0), L( 10, 0, 0), L( 9, 0, 0), L( 9, 0, 0), L( 8, 0, 0), L( 7, 0, 0), L( 6, 0, 0), L( 5, 0, 0), L( 5, 0, 0), L( 4, 0, 0), L( 3, 0, 0), L( 3, 0, 0), L( 2, 0, 0), L( 1, 0, 0), L( 0, 0, 0) }; #endif static inline void tab_init_rand(unsigned char *tab, unsigned int tab_size, int rand_max) { unsigned char *end = tab + tab_size; while(tab < end) *tab++ = (unsigned char)rb->rand() % rand_max; } static inline void fire_generate(int mult, int flames_type, bool moving) { unsigned int pixel_value = 0; /* stop the compiler complaining */ unsigned int cooling_value; unsigned char *ptr, *end, *cool; /* Randomize the bottom line */ if(moving) {/* moving must be true the first time the function is called */ ptr = &fire[LCD_HEIGHT][0]; end = ptr + LCD_WIDTH; do { *ptr++ = (MIN_FLAME_VALUE + rb->rand() % (256-MIN_FLAME_VALUE)); } while (ptr < end); } rb->yield(); /* Convolve the pixels and handle cooling (to add nice shapes effects later) */ cool = &cooling_map[0][0]; ptr = &fire[0][0]; end = ptr + LCD_HEIGHT*LCD_WIDTH; switch (flames_type) { case 0: do { pixel_value = ptr[LCD_WIDTH-1] /* fire[y+1][x-1] */ + ptr[2*LCD_WIDTH] /* fire[y+2][x] */ + ptr[LCD_WIDTH+1] /* fire[y+1][x+1] */ + ptr[3*LCD_WIDTH]; /* fire[y+3][x] */ pixel_value = MULU16(pixel_value, mult) >> 10; cooling_value = *cool++; if (cooling_value <= pixel_value) pixel_value -= cooling_value; /* else it's too cold, don't frost the pixels !!! */ if (pixel_value > 255) pixel_value = 255; *ptr++ = pixel_value; } while (ptr < end); break; case 1: do { pixel_value = ptr[LCD_WIDTH-1] /* fire[y+1][x-1] */ + ptr[LCD_WIDTH] /* fire[y+1][x] */ + ptr[LCD_WIDTH+1] /* fire[y+1][x+1] */ + ptr[2*LCD_WIDTH]; /* fire[y+2][x] */ pixel_value = MULU16(pixel_value, mult) >> 10; cooling_value = *cool++; if (cooling_value <= pixel_value) pixel_value -= cooling_value; /* else it's too cold, don't frost the pixels !!! */ if (pixel_value > 255) pixel_value = 255; *ptr++ = pixel_value; } while (ptr < end); break; default: /* We should never reach this */ break; } rb->yield(); } static inline void fire_draw(void) { #ifndef HAVE_LCD_COLOR int block; unsigned char *dest, *end; unsigned char *src = &fire[0][0]; for (block = 0; block < LCD_HEIGHT; block += 8) { dest = draw_buffer; end = dest + 8*LCD_WIDTH; do *dest++ = palette[*src++]; while(dest < end); gray_ub_gray_bitmap(draw_buffer, 0, block, LCD_WIDTH, 8); } #else fb_data* dest = rb->lcd_framebuffer; fb_data* end = rb->lcd_framebuffer+(LCD_WIDTH*LCD_HEIGHT); unsigned char* src = &fire[0][0]; while (dest < end) { *(dest++) = colorpalette[*(src++)]; } rb->lcd_update(); #endif } void cleanup(void *parameter) { (void)parameter; #if defined(HAVE_ADJUSTABLE_CPU_FREQ) rb->cpu_boost(false); #endif #ifndef HAVE_LCD_COLOR gray_release(); #endif rb->backlight_set_timeout(rb->global_settings->backlight_timeout); } /* * Main function that also contain the main plasma * algorithm. */ int main(void) { int shades, button; #ifdef HAVE_LCD_COLOR int mult = 267; #else int mult = 261; #endif int flames_type=0; bool moving=true; /* get the remainder of the plugin buffer */ gbuf = (unsigned char *) rb->plugin_get_buffer(&gbuf_size); #ifdef HAVE_LCD_COLOR shades = 256; #else shades = gray_init(rb, gbuf, gbuf_size, false, LCD_WIDTH, LCD_HEIGHT/8, 32, NULL) + 1; if(shades <= 1) { rb->splash(HZ, true, "not enough memory"); return PLUGIN_ERROR; } #endif #if defined(HAVE_ADJUSTABLE_CPU_FREQ) rb->cpu_boost(true); #endif #ifndef HAVE_LCD_COLOR /* switch on grayscale overlay */ gray_show(true); #endif rb->memset(&fire[0][0], 0, sizeof(fire)); tab_init_rand(&cooling_map[0][0], LCD_HEIGHT*LCD_WIDTH, COOL_MAX); while (true) { fire_generate(mult, flames_type, moving); fire_draw(); rb->yield(); button = rb->button_get(false); switch(button) { case(FIRE_QUIT): cleanup(NULL); return PLUGIN_OK; break; case (FIRE_INCREASE_MULT): ++mult; break; case (FIRE_DECREASE_MULT): if (mult > 0) --mult; break; case (FIRE_SWITCH_FLAMES_TYPE): flames_type = (flames_type + 1) % 2; break; case (FIRE_SWITCH_FLAMES_MOVING): moving = !moving; break; default: if (rb->default_event_handler_ex(button, cleanup, NULL) == SYS_USB_CONNECTED) return PLUGIN_USB_CONNECTED; break; } } } /*************************** Plugin entry point ****************************/ enum plugin_status plugin_start(struct plugin_api* api, void* parameter) { int ret; rb = api; // copy to global api pointer (void)parameter; if (rb->global_settings->backlight_timeout > 0) rb->backlight_set_timeout(1);/* keep the light on */ ret = main(); return ret; } #endif /* #ifdef HAVE_LCD_BITMAP */