/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2007 Jonas Hurrelmann (j@outpo.st) * Copyright (C) 2007 Nicolas Pennequin * Copyright (C) 2007 Ariya Hidayat (ariya@kde.org) (original Qt Version) * * Original code: http://code.google.com/p/pictureflow/ * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #include "plugin.h" #include #include "lib/read_image.h" #include "lib/pluginlib_actions.h" #include "lib/helper.h" #include "lib/configfile.h" #include "lib/grey.h" #include "lib/feature_wrappers.h" #include "lib/buflib.h" PLUGIN_HEADER /******************************* Globals ***********************************/ /* * Targets which use plugin_get_audio_buffer() can't have playback from * within pictureflow itself, as the whole core audio buffer is occupied */ #define PF_PLAYBACK_CAPABLE (PLUGIN_BUFFER_SIZE > 0x10000) #if PF_PLAYBACK_CAPABLE #include "lib/playback_control.h" #endif #define PF_PREV ACTION_STD_PREV #define PF_PREV_REPEAT ACTION_STD_PREVREPEAT #define PF_NEXT ACTION_STD_NEXT #define PF_NEXT_REPEAT ACTION_STD_NEXTREPEAT #define PF_SELECT ACTION_STD_OK #define PF_CONTEXT ACTION_STD_CONTEXT #define PF_BACK ACTION_STD_CANCEL #define PF_MENU ACTION_STD_MENU #define PF_WPS ACTION_TREE_WPS #define PF_QUIT (LAST_ACTION_PLACEHOLDER + 1) #if defined(HAVE_SCROLLWHEEL) || CONFIG_KEYPAD == IRIVER_H10_PAD || \ CONFIG_KEYPAD == SAMSUNG_YH_PAD #define USE_CORE_PREVNEXT #endif #ifndef USE_CORE_PREVNEXT /* scrollwheel targets use the wheel, just as they do in lists, * so there's no need for a special context, * others use left/right here too (as oppsed to up/down in lists) */ const struct button_mapping pf_context_album_scroll[] = { #ifdef HAVE_TOUCHSCREEN {PF_PREV, BUTTON_MIDLEFT, BUTTON_NONE}, {PF_PREV_REPEAT, BUTTON_MIDLEFT|BUTTON_REPEAT, BUTTON_NONE}, {PF_NEXT, BUTTON_MIDRIGHT, BUTTON_NONE}, {PF_NEXT_REPEAT, BUTTON_MIDRIGHT|BUTTON_REPEAT, BUTTON_NONE}, #endif #if (CONFIG_KEYPAD == IAUDIO_M3_PAD || CONFIG_KEYPAD == MROBE500_PAD) {PF_PREV, BUTTON_RC_REW, BUTTON_NONE}, {PF_PREV_REPEAT, BUTTON_RC_REW|BUTTON_REPEAT,BUTTON_NONE}, {PF_NEXT, BUTTON_RC_FF, BUTTON_NONE}, {PF_NEXT_REPEAT, BUTTON_RC_FF|BUTTON_REPEAT, BUTTON_NONE}, #else {PF_PREV, BUTTON_LEFT, BUTTON_NONE}, {PF_PREV_REPEAT, BUTTON_LEFT|BUTTON_REPEAT, BUTTON_NONE}, {PF_NEXT, BUTTON_RIGHT, BUTTON_NONE}, {PF_NEXT_REPEAT, BUTTON_RIGHT|BUTTON_REPEAT, BUTTON_NONE}, {ACTION_NONE, BUTTON_LEFT|BUTTON_REL, BUTTON_LEFT}, {ACTION_NONE, BUTTON_RIGHT|BUTTON_REL, BUTTON_RIGHT}, {ACTION_NONE, BUTTON_LEFT|BUTTON_REPEAT, BUTTON_LEFT}, {ACTION_NONE, BUTTON_RIGHT|BUTTON_REPEAT, BUTTON_RIGHT}, #endif #if CONFIG_KEYPAD == ONDIO_PAD {PF_SELECT, BUTTON_UP|BUTTON_REL, BUTTON_UP}, {PF_CONTEXT, BUTTON_UP|BUTTON_REPEAT, BUTTON_UP}, {ACTION_NONE, BUTTON_UP, BUTTON_NONE}, {ACTION_NONE, BUTTON_DOWN, BUTTON_NONE}, {ACTION_NONE, BUTTON_DOWN|BUTTON_REPEAT, BUTTON_NONE}, #endif LAST_ITEM_IN_LIST__NEXTLIST(CONTEXT_PLUGIN|1) }; #endif /* !USE_CORE_PREVNEXT */ const struct button_mapping pf_context_buttons[] = { #ifdef HAVE_TOUCHSCREEN {PF_SELECT, BUTTON_CENTER, BUTTON_NONE}, {PF_BACK, BUTTON_BOTTOMRIGHT, BUTTON_NONE}, #endif #if CONFIG_KEYPAD == ARCHOS_AV300_PAD {PF_QUIT, BUTTON_OFF, BUTTON_NONE}, #elif CONFIG_KEYPAD == SANSA_C100_PAD {PF_QUIT, BUTTON_MENU|BUTTON_REPEAT, BUTTON_MENU}, #elif CONFIG_KEYPAD == CREATIVEZV_PAD || CONFIG_KEYPAD == CREATIVEZVM_PAD || \ CONFIG_KEYPAD == PHILIPS_HDD1630_PAD || CONFIG_KEYPAD == IAUDIO67_PAD || \ CONFIG_KEYPAD == GIGABEAT_PAD || CONFIG_KEYPAD == GIGABEAT_S_PAD || \ CONFIG_KEYPAD == MROBE100_PAD || CONFIG_KEYPAD == MROBE500_PAD || \ CONFIG_KEYPAD == PHILIPS_SA9200_PAD || CONFIG_KEYPAD == SANSA_CLIP_PAD {PF_QUIT, BUTTON_POWER, BUTTON_NONE}, #elif CONFIG_KEYPAD == SANSA_FUZE_PAD {PF_QUIT, BUTTON_HOME|BUTTON_REPEAT, BUTTON_NONE}, /* These all use short press of BUTTON_POWER for menu, map long POWER to quit */ #elif CONFIG_KEYPAD == SANSA_C200_PAD || CONFIG_KEYPAD == SANSA_M200_PAD || \ CONFIG_KEYPAD == IRIVER_H10_PAD || CONFIG_KEYPAD == COWON_D2_PAD {PF_QUIT, BUTTON_POWER|BUTTON_REPEAT, BUTTON_POWER}, #if CONFIG_KEYPAD == COWON_D2_PAD {PF_BACK, BUTTON_POWER|BUTTON_REL, BUTTON_POWER}, {ACTION_NONE, BUTTON_POWER, BUTTON_NONE}, #endif #elif CONFIG_KEYPAD == SANSA_E200_PAD {PF_QUIT, BUTTON_POWER, BUTTON_NONE}, #elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD {PF_QUIT, BUTTON_EQ, BUTTON_NONE}, #elif (CONFIG_KEYPAD == IPOD_1G2G_PAD) \ || (CONFIG_KEYPAD == IPOD_3G_PAD) \ || (CONFIG_KEYPAD == IPOD_4G_PAD) {PF_QUIT, BUTTON_MENU|BUTTON_REPEAT, BUTTON_MENU}, #elif CONFIG_KEYPAD == LOGIK_DAX_PAD {PF_QUIT, BUTTON_POWERPLAY|BUTTON_REPEAT, BUTTON_POWERPLAY}, #elif CONFIG_KEYPAD == IAUDIO_M3_PAD {PF_QUIT, BUTTON_RC_REC, BUTTON_NONE}, #elif CONFIG_KEYPAD == MEIZU_M6SL_PAD {PF_QUIT, BUTTON_MENU|BUTTON_REPEAT, BUTTON_MENU}, #elif CONFIG_KEYPAD == IRIVER_H100_PAD || CONFIG_KEYPAD == IRIVER_H300_PAD || \ CONFIG_KEYPAD == RECORDER_PAD || CONFIG_KEYPAD == ONDIO_PAD {PF_QUIT, BUTTON_OFF, BUTTON_NONE}, #elif CONFIG_KEYPAD == PBELL_VIBE500_PAD {PF_QUIT, BUTTON_REC, BUTTON_NONE}, #endif #if CONFIG_KEYPAD == IAUDIO_M3_PAD LAST_ITEM_IN_LIST__NEXTLIST(CONTEXT_STD|CONTEXT_REMOTE) #else LAST_ITEM_IN_LIST__NEXTLIST(CONTEXT_TREE) #endif }; const struct button_mapping *pf_contexts[] = { #ifndef USE_CORE_PREVNEXT pf_context_album_scroll, #endif pf_context_buttons }; #if LCD_DEPTH < 8 #if LCD_DEPTH > 1 #define N_BRIGHT(y) LCD_BRIGHTNESS(y) #else /* LCD_DEPTH <= 1 */ #define N_BRIGHT(y) ((y > 127) ? 0 : 1) #ifdef HAVE_NEGATIVE_LCD /* m:robe 100, Clip */ #define PICTUREFLOW_DRMODE DRMODE_SOLID #else #define PICTUREFLOW_DRMODE (DRMODE_SOLID|DRMODE_INVERSEVID) #endif #endif /* LCD_DEPTH <= 1 */ #define USEGSLIB GREY_INFO_STRUCT #define LCD_BUF _grey_info.buffer #define MYLCD(fn) grey_ ## fn #define G_PIX(r,g,b) \ (77 * (unsigned)(r) + 150 * (unsigned)(g) + 29 * (unsigned)(b)) / 256 #define N_PIX(r,g,b) N_BRIGHT(G_PIX(r,g,b)) #define G_BRIGHT(y) (y) #define BUFFER_WIDTH _grey_info.width #define BUFFER_HEIGHT _grey_info.height typedef unsigned char pix_t; #else /* LCD_DEPTH >= 8 */ #define LCD_BUF rb->lcd_framebuffer #define MYLCD(fn) rb->lcd_ ## fn #define G_PIX LCD_RGBPACK #define N_PIX LCD_RGBPACK #define G_BRIGHT(y) LCD_RGBPACK(y,y,y) #define N_BRIGHT(y) LCD_RGBPACK(y,y,y) #define BUFFER_WIDTH LCD_WIDTH #define BUFFER_HEIGHT LCD_HEIGHT typedef fb_data pix_t; #endif /* LCD_DEPTH >= 8 */ /* for fixed-point arithmetic, we need minimum 32-bit long long long (64-bit) might be useful for multiplication and division */ #define PFreal long #define PFREAL_SHIFT 10 #define PFREAL_FACTOR (1 << PFREAL_SHIFT) #define PFREAL_ONE (1 << PFREAL_SHIFT) #define PFREAL_HALF (PFREAL_ONE >> 1) #define IANGLE_MAX 1024 #define IANGLE_MASK 1023 #define REFLECT_TOP (LCD_HEIGHT * 2 / 3) #define REFLECT_HEIGHT (LCD_HEIGHT - REFLECT_TOP) #define DISPLAY_HEIGHT REFLECT_TOP #define DISPLAY_WIDTH MAX((LCD_HEIGHT * LCD_PIXEL_ASPECT_HEIGHT / \ LCD_PIXEL_ASPECT_WIDTH / 2), (LCD_WIDTH * 2 / 5)) #define REFLECT_SC ((0x10000U * 3 + (REFLECT_HEIGHT * 5 - 1)) / \ (REFLECT_HEIGHT * 5)) #define DISPLAY_OFFS ((LCD_HEIGHT / 2) - REFLECT_HEIGHT) #define CAM_DIST MAX(MIN(LCD_HEIGHT,LCD_WIDTH),120) #define CAM_DIST_R (CAM_DIST << PFREAL_SHIFT) #define DISPLAY_LEFT_R (PFREAL_HALF - LCD_WIDTH * PFREAL_HALF) #define MAXSLIDE_LEFT_R (PFREAL_HALF - DISPLAY_WIDTH * PFREAL_HALF) #define SLIDE_CACHE_SIZE 64 /* probably more than can be loaded */ #define MAX_SLIDES_COUNT 10 #define THREAD_STACK_SIZE DEFAULT_STACK_SIZE + 0x200 #define CACHE_PREFIX PLUGIN_DEMOS_DIR "/pictureflow" #define EV_EXIT 9999 #define EV_WAKEUP 1337 #define EMPTY_SLIDE CACHE_PREFIX "/emptyslide.pfraw" #define EMPTY_SLIDE_BMP PLUGIN_DEMOS_DIR "/pictureflow_emptyslide.bmp" #define SPLASH_BMP PLUGIN_DEMOS_DIR "/pictureflow_splash.bmp" /* Error return values */ #define ERROR_NO_ALBUMS -1 #define ERROR_BUFFER_FULL -2 /* current version for cover cache */ #define CACHE_VERSION 3 #define CONFIG_VERSION 1 #define CONFIG_FILE "pictureflow.cfg" /** structs we use */ struct slide_data { int slide_index; int angle; PFreal cx; PFreal cy; PFreal distance; }; struct slide_cache { int index; /* index of the cached slide */ int hid; /* handle ID of the cached slide */ short next; /* "next" slide, with LRU last */ short prev; /* "previous" slide */ }; struct album_data { int name_idx; long seek; }; struct track_data { uint32_t sort; int name_idx; /* offset to the track name */ long seek; #if PF_PLAYBACK_CAPABLE /* offset to the filename in the string, needed for playlist generation */ int filename_idx; #endif }; struct rect { int left; int right; int top; int bottom; }; struct load_slide_event_data { int slide_index; int cache_index; }; struct pfraw_header { int32_t width; /* bmap width in pixels */ int32_t height; /* bmap height in pixels */ }; enum show_album_name_values { album_name_hide = 0, album_name_bottom, album_name_top }; static char* show_album_name_conf[] = { "hide", "bottom", "top" }; #define MAX_SPACING 40 #define MAX_MARGIN 80 /* config values and their defaults */ static int slide_spacing = DISPLAY_WIDTH / 4; static int center_margin = (LCD_WIDTH - DISPLAY_WIDTH) / 12; static int num_slides = 4; static int zoom = 100; static bool show_fps = false; static bool resize = true; static int cache_version = 0; static int show_album_name = (LCD_HEIGHT > 100) ? album_name_top : album_name_bottom; static struct configdata config[] = { { TYPE_INT, 0, MAX_SPACING, { .int_p = &slide_spacing }, "slide spacing", NULL }, { TYPE_INT, 0, MAX_MARGIN, { .int_p = ¢er_margin }, "center margin", NULL }, { TYPE_INT, 0, MAX_SLIDES_COUNT, { .int_p = &num_slides }, "slides count", NULL }, { TYPE_INT, 0, 300, { .int_p = &zoom }, "zoom", NULL }, { TYPE_BOOL, 0, 1, { .bool_p = &show_fps }, "show fps", NULL }, { TYPE_BOOL, 0, 1, { .bool_p = &resize }, "resize", NULL }, { TYPE_INT, 0, 100, { .int_p = &cache_version }, "cache version", NULL }, { TYPE_ENUM, 0, 2, { .int_p = &show_album_name }, "show album name", show_album_name_conf } }; #define CONFIG_NUM_ITEMS (sizeof(config) / sizeof(struct configdata)) /** below we allocate the memory we want to use **/ static pix_t *buffer; /* for now it always points to the lcd framebuffer */ static uint8_t reflect_table[REFLECT_HEIGHT]; static struct slide_data center_slide; static struct slide_data left_slides[MAX_SLIDES_COUNT]; static struct slide_data right_slides[MAX_SLIDES_COUNT]; static int slide_frame; static int step; static int target; static int fade; static int center_index = 0; /* index of the slide that is in the center */ static int itilt; static PFreal offsetX; static PFreal offsetY; static int number_of_slides; static struct slide_cache cache[SLIDE_CACHE_SIZE]; static int cache_free; static int cache_used = -1; static int cache_left_index = -1; static int cache_right_index = -1; static int cache_center_index = -1; /* use long for aligning */ unsigned long thread_stack[THREAD_STACK_SIZE / sizeof(long)]; /* queue (as array) for scheduling load_surface */ static int empty_slide_hid; unsigned int thread_id; struct event_queue thread_q; static struct tagcache_search tcs; static struct buflib_context buf_ctx; static struct album_data *album; static char *album_names; static int album_count; static struct track_data *tracks; static char *track_names; static size_t borrowed = 0; static int track_count; static int track_index; static int selected_track; static int selected_track_pulse; void reset_track_list(void); void * buf; size_t buf_size; static bool thread_is_running; static int cover_animation_keyframe; static int extra_fade; static int albumtxt_x = 0; static int albumtxt_dir = -1; static int prev_center_index = -1; static int start_index_track_list = 0; static int track_list_visible_entries = 0; static int track_list_y; static int track_list_h; static int track_scroll_index = 0; static int track_scroll_dir = 1; /* Proposals for transitions: pf_idle -> pf_scrolling : NEXT_ALBUM/PREV_ALBUM pressed -> pf_cover_in -> pf_show_tracks : SELECT_ALBUM clicked pf_scrolling -> pf_idle : NEXT_ALBUM/PREV_ALBUM released pf_show_tracks -> pf_cover_out -> pf_idle : SELECT_ALBUM pressed TODO: pf_show_tracks -> pf_cover_out -> pf_idle : MENU_PRESSED pressed pf_show_tracks -> play_track() -> exit() : SELECT_ALBUM pressed pf_idle, pf_scrolling -> show_menu(): MENU_PRESSED */ enum pf_states { pf_idle = 0, pf_scrolling, pf_cover_in, pf_show_tracks, pf_cover_out }; static int pf_state; /** code */ static bool free_slide_prio(int prio); static inline unsigned fade_color(pix_t c, unsigned a); bool save_pfraw(char* filename, struct bitmap *bm); bool load_new_slide(void); int load_surface(int); static inline PFreal fmul(PFreal a, PFreal b) { return (a*b) >> PFREAL_SHIFT; } /** * This version preshifts each operand, which is useful when we know how many * of the least significant bits will be empty, or are worried about overflow * in a particular calculation */ static inline PFreal fmuln(PFreal a, PFreal b, int ps1, int ps2) { return ((a >> ps1) * (b >> ps2)) >> (PFREAL_SHIFT - ps1 - ps2); } /* ARMv5+ has a clz instruction equivalent to our function. */ #if (defined(CPU_ARM) && (ARM_ARCH > 4)) static inline int clz(uint32_t v) { return __builtin_clz(v); } /* Otherwise, use our clz, which can be inlined */ #elif defined(CPU_COLDFIRE) /* This clz is based on the log2(n) implementation at * http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog * A clz benchmark plugin showed this to be about 14% faster on coldfire * than the LUT-based version. */ static inline int clz(uint32_t v) { int r = 32; if (v >= 0x10000) { v >>= 16; r -= 16; } if (v & 0xff00) { v >>= 8; r -= 8; } if (v & 0xf0) { v >>= 4; r -= 4; } if (v & 0xc) { v >>= 2; r -= 2; } if (v & 2) { v >>= 1; r -= 1; } r -= v; return r; } #else static const char clz_lut[16] = { 4, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 }; /* This clz is based on the log2(n) implementation at * http://graphics.stanford.edu/~seander/bithacks.html#IntegerLogLookup * It is not any faster than the one above, but trades 16B in the lookup table * for a savings of 12B per each inlined call. */ static inline int clz(uint32_t v) { int r = 28; if (v >= 0x10000) { v >>= 16; r -= 16; } if (v & 0xff00) { v >>= 8; r -= 8; } if (v & 0xf0) { v >>= 4; r -= 4; } return r + clz_lut[v]; } #endif /* Return the maximum possible left shift for a signed int32, without * overflow */ static inline int allowed_shift(int32_t val) { uint32_t uval = val ^ (val >> 31); return clz(uval) - 1; } /* Calculate num/den, with the result shifted left by PFREAL_SHIFT, by shifting * num and den before dividing. */ static inline PFreal fdiv(PFreal num, PFreal den) { int shift = allowed_shift(num); shift = MIN(PFREAL_SHIFT, shift); num <<= shift; den >>= PFREAL_SHIFT - shift; return num / den; } #define fmin(a,b) (((a) < (b)) ? (a) : (b)) #define fmax(a,b) (((a) > (b)) ? (a) : (b)) #define fabs(a) (a < 0 ? -a : a) #define fbound(min,val,max) (fmax((min),fmin((max),(val)))) #if CONFIG_CPU == SH7034 /* 16*16->32 bit multiplication is a single instrcution on the SH1 */ #define MULUQ(a, b) ((uint32_t) (((uint16_t) (a)) * ((uint16_t) (b)))) #else #define MULUQ(a, b) ((a) * (b)) #endif #if 0 #define fmul(a,b) ( ((a)*(b)) >> PFREAL_SHIFT ) #define fdiv(n,m) ( ((n)<< PFREAL_SHIFT ) / m ) #define fconv(a, q1, q2) (((q2)>(q1)) ? (a)<<((q2)-(q1)) : (a)>>((q1)-(q2))) #define tofloat(a, q) ( (float)(a) / (float)(1<<(q)) ) static inline PFreal fmul(PFreal a, PFreal b) { return (a*b) >> PFREAL_SHIFT; } static inline PFreal fdiv(PFreal n, PFreal m) { return (n<<(PFREAL_SHIFT))/m; } #endif /* warning: regenerate the table if IANGLE_MAX and PFREAL_SHIFT are changed! */ static const short sin_tab[] = { 0, 100, 200, 297, 392, 483, 569, 650, 724, 792, 851, 903, 946, 980, 1004, 1019, 1024, 1019, 1004, 980, 946, 903, 851, 792, 724, 650, 569, 483, 392, 297, 200, 100, 0, -100, -200, -297, -392, -483, -569, -650, -724, -792, -851, -903, -946, -980, -1004, -1019, -1024, -1019, -1004, -980, -946, -903, -851, -792, -724, -650, -569, -483, -392, -297, -200, -100, 0 }; static inline PFreal fsin(int iangle) { iangle &= IANGLE_MASK; int i = (iangle >> 4); PFreal p = sin_tab[i]; PFreal q = sin_tab[(i+1)]; PFreal g = (q - p); return p + g * (iangle-i*16)/16; } static inline PFreal fcos(int iangle) { return fsin(iangle + (IANGLE_MAX >> 2)); } static inline unsigned scale_val(unsigned val, unsigned bits) { val = val * ((1 << bits) - 1); return ((val >> 8) + val + 128) >> 8; } static void output_row_8_transposed(uint32_t row, void * row_in, struct scaler_context *ctx) { pix_t *dest = (pix_t*)ctx->bm->data + row; pix_t *end = dest + ctx->bm->height * ctx->bm->width; #ifdef USEGSLIB uint8_t *qp = (uint8_t*)row_in; for (; dest < end; dest += ctx->bm->height) *dest = *qp++; #else struct uint8_rgb *qp = (struct uint8_rgb*)row_in; unsigned r, g, b; for (; dest < end; dest += ctx->bm->height) { r = scale_val(qp->red, 5); g = scale_val(qp->green, 6); b = scale_val((qp++)->blue, 5); *dest = LCD_RGBPACK_LCD(r,g,b); } #endif } static void output_row_32_transposed(uint32_t row, void * row_in, struct scaler_context *ctx) { pix_t *dest = (pix_t*)ctx->bm->data + row; pix_t *end = dest + ctx->bm->height * ctx->bm->width; #ifdef USEGSLIB uint32_t *qp = (uint32_t*)row_in; for (; dest < end; dest += ctx->bm->height) *dest = SC_OUT(*qp++, ctx); #else struct uint32_rgb *qp = (struct uint32_rgb*)row_in; int r, g, b; for (; dest < end; dest += ctx->bm->height) { r = scale_val(SC_OUT(qp->r, ctx), 5); g = scale_val(SC_OUT(qp->g, ctx), 6); b = scale_val(SC_OUT(qp->b, ctx), 5); qp++; *dest = LCD_RGBPACK_LCD(r,g,b); } #endif } #ifdef HAVE_LCD_COLOR static void output_row_32_transposed_fromyuv(uint32_t row, void * row_in, struct scaler_context *ctx) { pix_t *dest = (pix_t*)ctx->bm->data + row; pix_t *end = dest + ctx->bm->height * ctx->bm->width; struct uint32_rgb *qp = (struct uint32_rgb*)row_in; for (; dest < end; dest += ctx->bm->height) { unsigned r, g, b, y, u, v; y = SC_OUT(qp->b, ctx); u = SC_OUT(qp->g, ctx); v = SC_OUT(qp->r, ctx); qp++; yuv_to_rgb(y, u, v, &r, &g, &b); r = scale_val(r, 5); g = scale_val(g, 6); b = scale_val(b, 5); *dest = LCD_RGBPACK_LCD(r, g, b); } } #endif static unsigned int get_size(struct bitmap *bm) { return bm->width * bm->height * sizeof(pix_t); } const struct custom_format format_transposed = { .output_row_8 = output_row_8_transposed, #ifdef HAVE_LCD_COLOR .output_row_32 = { output_row_32_transposed, output_row_32_transposed_fromyuv }, #else .output_row_32 = output_row_32_transposed, #endif .get_size = get_size }; static const struct button_mapping* get_context_map(int context) { return pf_contexts[context & ~CONTEXT_PLUGIN]; } /* Create the lookup table with the scaling values for the reflections */ void init_reflect_table(void) { int i; for (i = 0; i < REFLECT_HEIGHT; i++) reflect_table[i] = (768 * (REFLECT_HEIGHT - i) + (5 * REFLECT_HEIGHT / 2)) / (5 * REFLECT_HEIGHT); } /** Create an index of all albums from the database. Also store the album names so we can access them later. */ int create_album_index(void) { album = ((struct album_data *)(buf_size + (char *) buf)) - 1; rb->memset(&tcs, 0, sizeof(struct tagcache_search) ); album_count = 0; rb->tagcache_search(&tcs, tag_album); unsigned int l, old_l = 0; album_names = buf; album[0].name_idx = 0; while (rb->tagcache_get_next(&tcs)) { buf_size -= sizeof(struct album_data); l = tcs.result_len; if ( album_count > 0 ) album[-album_count].name_idx = album[1-album_count].name_idx + old_l; if ( l > buf_size ) /* not enough memory */ return ERROR_BUFFER_FULL; rb->strcpy(buf, tcs.result); buf_size -= l; buf = l + (char *)buf; album[-album_count].seek = tcs.result_seek; old_l = l; album_count++; } rb->tagcache_search_finish(&tcs); ALIGN_BUFFER(buf, buf_size, 4); int i; struct album_data* tmp_album = (struct album_data*)buf; for (i = album_count - 1; i >= 0; i--) tmp_album[i] = album[-i]; album = tmp_album; buf = album + album_count; return (album_count > 0) ? 0 : ERROR_NO_ALBUMS; } /** Return a pointer to the album name of the given slide_index */ char* get_album_name(const int slide_index) { return album_names + album[slide_index].name_idx; } /** Return a pointer to the track name of the active album create_track_index has to be called first. */ char* get_track_name(const int track_index) { if ( track_index < track_count ) return track_names + tracks[track_index].name_idx; return 0; } #if PF_PLAYBACK_CAPABLE char* get_track_filename(const int track_index) { if ( track_index < track_count ) return track_names + tracks[track_index].filename_idx; return 0; } #endif /** Compare two unsigned ints passed via pointers. */ int compare_tracks (const void *a_v, const void *b_v) { uint32_t a = ((struct track_data *)a_v)->sort; uint32_t b = ((struct track_data *)b_v)->sort; return (int)(a - b); } /** Create the track index of the given slide_index. */ void create_track_index(const int slide_index) { if ( slide_index == track_index ) return; track_index = slide_index; if (!rb->tagcache_search(&tcs, tag_title)) goto fail; rb->tagcache_search_add_filter(&tcs, tag_album, album[slide_index].seek); track_count=0; int string_index = 0, track_num; int disc_num; size_t out = 0; track_names = (char *)buflib_buffer_out(&buf_ctx, &out); borrowed += out; int avail = borrowed; tracks = (struct track_data*)(track_names + borrowed); while (rb->tagcache_get_next(&tcs)) { int len = 0, fn_idx = 0; avail -= sizeof(struct track_data); track_num = rb->tagcache_get_numeric(&tcs, tag_tracknumber) - 1; disc_num = rb->tagcache_get_numeric(&tcs, tag_discnumber); if (disc_num < 0) disc_num = 0; retry: if (track_num >= 0) { if (disc_num) fn_idx = 1 + rb->snprintf(track_names + string_index , avail, "%d.%02d: %s", disc_num, track_num + 1, tcs.result); else fn_idx = 1 + rb->snprintf(track_names + string_index , avail, "%d: %s", track_num + 1, tcs.result); } else { track_num = 0; fn_idx = 1 + rb->snprintf(track_names + string_index, avail, "%s", tcs.result); } if (fn_idx <= 0) goto fail; #if PF_PLAYBACK_CAPABLE int remain = avail - fn_idx; if (remain >= MAX_PATH) { /* retrieve filename for building the playlist */ rb->tagcache_retrieve(&tcs, tcs.idx_id, tag_filename, track_names + string_index + fn_idx, remain); len = fn_idx + rb->strlen(track_names + string_index + fn_idx) + 1; /* make sure track name and file name are really split by a \0, else * get_track_name might fail */ *(track_names + string_index + fn_idx -1) = '\0'; } else /* request more buffer so that track and filename fit */ len = (avail - remain) + MAX_PATH; #else len = fn_idx; #endif if (len > avail) { while (len > avail) { if (!free_slide_prio(0)) goto fail; out = 0; buflib_buffer_out(&buf_ctx, &out); avail += out; borrowed += out; if (track_count) { struct track_data *new_tracks = (struct track_data *)(out + (uintptr_t)tracks); unsigned int bytes = track_count * sizeof(struct track_data); rb->memmove(new_tracks, tracks, bytes); tracks = new_tracks; } } goto retry; } avail -= len; tracks--; tracks->sort = ((disc_num - 1) << 24) + (track_num << 14) + track_count; tracks->name_idx = string_index; tracks->seek = tcs.result_seek; #if PF_PLAYBACK_CAPABLE tracks->filename_idx = fn_idx + string_index; #endif track_count++; string_index += len; } rb->tagcache_search_finish(&tcs); /* now fix the track list order */ rb->qsort(tracks, track_count, sizeof(struct track_data), compare_tracks); return; fail: track_count = 0; return; } /** Determine filename of the album art for the given slide_index and store the result in buf. The algorithm looks for the first track of the given album uses find_albumart to find the filename. */ bool get_albumart_for_index_from_db(const int slide_index, char *buf, int buflen) { if ( slide_index == -1 ) { rb->strlcpy( buf, EMPTY_SLIDE, buflen ); } if (!rb->tagcache_search(&tcs, tag_filename)) return false; bool result; /* find the first track of the album */ rb->tagcache_search_add_filter(&tcs, tag_album, album[slide_index].seek); if ( rb->tagcache_get_next(&tcs) ) { struct mp3entry id3; int fd; #ifdef HAVE_TC_RAMCACHE if (rb->tagcache_fill_tags(&id3, tcs.result)) { rb->strlcpy(id3.path, tcs.result, sizeof(id3.path)); } else #endif { fd = rb->open(tcs.result, O_RDONLY); rb->get_metadata(&id3, fd, tcs.result); rb->close(fd); } if ( search_albumart_files(&id3, ":", buf, buflen) ) result = true; else result = false; } else { /* did not find a matching track */ result = false; } rb->tagcache_search_finish(&tcs); return result; } /** Draw the PictureFlow logo */ void draw_splashscreen(void) { unsigned char * buf_tmp = buf; size_t buf_tmp_size = buf_size; struct screen* display = rb->screens[0]; #if FB_DATA_SZ > 1 ALIGN_BUFFER(buf_tmp, buf_tmp_size, sizeof(fb_data)); #endif struct bitmap logo = { #if LCD_WIDTH < 200 .width = 100, .height = 18, #else .width = 193, .height = 34, #endif .data = buf_tmp }; int ret = rb->read_bmp_file(SPLASH_BMP, &logo, buf_tmp_size, FORMAT_NATIVE, NULL); #if LCD_DEPTH > 1 rb->lcd_set_background(N_BRIGHT(0)); rb->lcd_set_foreground(N_BRIGHT(255)); #else rb->lcd_set_drawmode(PICTUREFLOW_DRMODE); #endif rb->lcd_clear_display(); if (ret > 0) { #if LCD_DEPTH == 1 /* Mono LCDs need the logo inverted */ rb->lcd_set_drawmode(PICTUREFLOW_DRMODE ^ DRMODE_INVERSEVID); #endif display->bitmap(logo.data, (LCD_WIDTH - logo.width) / 2, 10, logo.width, logo.height); #if LCD_DEPTH == 1 /* Mono LCDs need the logo inverted */ rb->lcd_set_drawmode(PICTUREFLOW_DRMODE); #endif } rb->lcd_update(); } /** Draw a simple progress bar */ void draw_progressbar(int step) { int txt_w, txt_h; const int bar_height = 22; const int w = LCD_WIDTH - 20; const int x = 10; rb->lcd_getstringsize("Preparing album artwork", &txt_w, &txt_h); int y = (LCD_HEIGHT - txt_h)/2; rb->lcd_putsxy((LCD_WIDTH - txt_w)/2, y, "Preparing album artwork"); y += (txt_h + 5); #if LCD_DEPTH > 1 rb->lcd_set_foreground(N_BRIGHT(100)); #endif rb->lcd_drawrect(x, y, w+2, bar_height); #if LCD_DEPTH > 1 rb->lcd_set_foreground(N_PIX(165, 231, 82)); #endif rb->lcd_fillrect(x+1, y+1, step * w / album_count, bar_height-2); #if LCD_DEPTH > 1 rb->lcd_set_foreground(N_BRIGHT(255)); #endif rb->lcd_update(); rb->yield(); } /** Precomupte the album art images and store them in CACHE_PREFIX. */ bool create_albumart_cache(void) { int ret; int i, slides = 0; struct bitmap input_bmp; char pfraw_file[MAX_PATH]; char albumart_file[MAX_PATH]; unsigned int format = FORMAT_NATIVE; cache_version = 0; configfile_save(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION); if (resize) format |= FORMAT_RESIZE|FORMAT_KEEP_ASPECT; for (i=0; i < album_count; i++) { rb->snprintf(pfraw_file, sizeof(pfraw_file), CACHE_PREFIX "/%d.pfraw", i); /* delete existing cache, so it's a true rebuild */ if(rb->file_exists(pfraw_file)) rb->remove(pfraw_file); draw_progressbar(i); if (!get_albumart_for_index_from_db(i, albumart_file, MAX_PATH)) continue; input_bmp.data = buf; input_bmp.width = DISPLAY_WIDTH; input_bmp.height = DISPLAY_HEIGHT; ret = read_image_file(albumart_file, &input_bmp, buf_size, format, &format_transposed); if (ret <= 0) { rb->splash(HZ, "Could not read bmp"); continue; /* skip missing/broken files */ } if (!save_pfraw(pfraw_file, &input_bmp)) { rb->splash(HZ, "Could not write bmp"); } slides++; if ( rb->button_get(false) == PF_MENU ) return false; } if ( slides == 0 ) { /* Warn the user that we couldn't find any albumart */ rb->splash(2*HZ, "No album art found"); return false; } return true; } /** Thread used for loading and preparing bitmaps in the background */ void thread(void) { long sleep_time = 5 * HZ; struct queue_event ev; while (1) { rb->queue_wait_w_tmo(&thread_q, &ev, sleep_time); switch (ev.id) { case EV_EXIT: return; case EV_WAKEUP: /* we just woke up */ break; } while ( load_new_slide() ) { rb->yield(); switch (ev.id) { case EV_EXIT: return; } } } } /** End the thread by posting the EV_EXIT event */ void end_pf_thread(void) { if ( thread_is_running ) { rb->queue_post(&thread_q, EV_EXIT, 0); rb->thread_wait(thread_id); /* remove the thread's queue from the broadcast list */ rb->queue_delete(&thread_q); thread_is_running = false; } } /** Create the thread an setup the event queue */ bool create_pf_thread(void) { /* put the thread's queue in the bcast list */ rb->queue_init(&thread_q, true); if ((thread_id = rb->create_thread( thread, thread_stack, sizeof(thread_stack), 0, "Picture load thread" IF_PRIO(, MAX(PRIORITY_USER_INTERFACE / 2, PRIORITY_REALTIME + 1)) IF_COP(, CPU) ) ) == 0) { return false; } thread_is_running = true; rb->queue_post(&thread_q, EV_WAKEUP, 0); return true; } /** Safe the given bitmap as filename in the pfraw format */ bool save_pfraw(char* filename, struct bitmap *bm) { struct pfraw_header bmph; bmph.width = bm->width; bmph.height = bm->height; int fh = rb->creat( filename , 0666); if( fh < 0 ) return false; rb->write( fh, &bmph, sizeof( struct pfraw_header ) ); int y; for( y = 0; y < bm->height; y++ ) { pix_t *d = (pix_t*)( bm->data ) + (y*bm->width); rb->write( fh, d, sizeof( pix_t ) * bm->width ); } rb->close( fh ); return true; } /* * The following functions implement the linked-list-in-array used to manage * the LRU cache of slides, and the list of free cache slots. */ #define seek_right_while(start, cond) \ ({ \ int ind_, next_ = (start); \ do { \ ind_ = next_; \ next_ = cache[ind_].next; \ } while (next_ != cache_used && (cond)); \ ind_; \ }) #define seek_left_while(start, cond) \ ({ \ int ind_, next_ = (start); \ do { \ ind_ = next_; \ next_ = cache[ind_].prev; \ } while (ind_ != cache_used && (cond)); \ ind_; \ }) /** Pop the given item from the linked list starting at *head, returning the next item, or -1 if the list is now empty. */ static inline int lla_pop_item (int *head, int i) { int prev = cache[i].prev; int next = cache[i].next; if (i == next) { *head = -1; return -1; } else if (i == *head) *head = next; cache[next].prev = prev; cache[prev].next = next; return next; } /** Pop the head item from the list starting at *head, returning the index of the item, or -1 if the list is already empty. */ static inline int lla_pop_head (int *head) { int i = *head; if (i != -1) lla_pop_item(head, i); return i; } /** Insert the item at index i before the one at index p. */ static inline void lla_insert (int i, int p) { int next = p; int prev = cache[next].prev; cache[next].prev = i; cache[prev].next = i; cache[i].next = next; cache[i].prev = prev; } /** Insert the item at index i at the end of the list starting at *head. */ static inline void lla_insert_tail (int *head, int i) { if (*head == -1) { *head = i; cache[i].next = i; cache[i].prev = i; } else lla_insert(i, *head); } /** Insert the item at index i before the one at index p. */ static inline void lla_insert_after(int i, int p) { p = cache[p].next; lla_insert(i, p); } /** Insert the item at index i before the one at index p in the list starting at *head */ static inline void lla_insert_before(int *head, int i, int p) { lla_insert(i, p); if (*head == p) *head = i; } /** Free the used slide at index i, and its buffer, and move it to the free slides list. */ static inline void free_slide(int i) { if (cache[i].hid != empty_slide_hid) buflib_free(&buf_ctx, cache[i].hid); cache[i].index = -1; lla_pop_item(&cache_used, i); lla_insert_tail(&cache_free, i); if (cache_used == -1) { cache_right_index = -1; cache_left_index = -1; cache_center_index = -1; } } /** Free one slide ranked above the given priority. If no such slide can be found, return false. */ static bool free_slide_prio(int prio) { if (cache_used == -1) return false; int i, l = cache_used, r = cache[cache_used].prev, prio_max; int prio_l = cache[l].index < center_index ? center_index - cache[l].index : 0; int prio_r = cache[r].index > center_index ? cache[r].index - center_index : 0; if (prio_l > prio_r) { i = l; prio_max = prio_l; } else { i = r; prio_max = prio_r; } if (prio_max > prio) { if (i == cache_left_index) cache_left_index = cache[i].next; if (i == cache_right_index) cache_right_index = cache[i].prev; free_slide(i); return true; } else return false; } /** Read the pfraw image given as filename and return the hid of the buffer */ int read_pfraw(char* filename, int prio) { struct pfraw_header bmph; int fh = rb->open(filename, O_RDONLY); if( fh < 0 ) return empty_slide_hid; else rb->read(fh, &bmph, sizeof(struct pfraw_header)); int size = sizeof(struct bitmap) + sizeof( pix_t ) * bmph.width * bmph.height; int hid; while (!(hid = buflib_alloc(&buf_ctx, size)) && free_slide_prio(prio)); if (!hid) { rb->close( fh ); return 0; } struct dim *bm = buflib_get_data(&buf_ctx, hid); bm->width = bmph.width; bm->height = bmph.height; pix_t *data = (pix_t*)(sizeof(struct dim) + (char *)bm); int y; for( y = 0; y < bm->height; y++ ) { rb->read( fh, data , sizeof( pix_t ) * bm->width ); data += bm->width; } rb->close( fh ); return hid; } /** Load the surface for the given slide_index into the cache at cache_index. */ static inline bool load_and_prepare_surface(const int slide_index, const int cache_index, const int prio) { char tmp_path_name[MAX_PATH+1]; rb->snprintf(tmp_path_name, sizeof(tmp_path_name), CACHE_PREFIX "/%d.pfraw", slide_index); int hid = read_pfraw(tmp_path_name, prio); if (!hid) return false; cache[cache_index].hid = hid; if ( cache_index < SLIDE_CACHE_SIZE ) { cache[cache_index].index = slide_index; } return true; } /** Load the "next" slide that we can load, freeing old slides if needed, provided that they are further from center_index than the current slide */ bool load_new_slide(void) { int i = -1; if (cache_center_index != -1) { int next, prev; if (cache[cache_center_index].index != center_index) { if (cache[cache_center_index].index < center_index) { cache_center_index = seek_right_while(cache_center_index, cache[next_].index <= center_index); prev = cache_center_index; next = cache[cache_center_index].next; } else { cache_center_index = seek_left_while(cache_center_index, cache[next_].index >= center_index); next = cache_center_index; prev = cache[cache_center_index].prev; } if (cache[cache_center_index].index != center_index) { if (cache_free == -1) free_slide_prio(0); i = lla_pop_head(&cache_free); if (!load_and_prepare_surface(center_index, i, 0)) goto fail_and_refree; if (cache[next].index == -1) { if (cache[prev].index == -1) goto insert_first_slide; else next = cache[prev].next; } lla_insert(i, next); if (cache[i].index < cache[cache_used].index) cache_used = i; cache_center_index = i; cache_left_index = i; cache_right_index = i; return true; } } if (cache[cache_left_index].index > cache[cache_center_index].index) cache_left_index = cache_center_index; if (cache[cache_right_index].index < cache[cache_center_index].index) cache_right_index = cache_center_index; cache_left_index = seek_left_while(cache_left_index, cache[ind_].index - 1 == cache[next_].index); cache_right_index = seek_right_while(cache_right_index, cache[ind_].index - 1 == cache[next_].index); int prio_l = cache[cache_center_index].index - cache[cache_left_index].index + 1; int prio_r = cache[cache_right_index].index - cache[cache_center_index].index + 1; if ((prio_l < prio_r || cache[cache_right_index].index >= number_of_slides) && cache[cache_left_index].index > 0) { if (cache_free == -1 && !free_slide_prio(prio_l)) return false; i = lla_pop_head(&cache_free); if (load_and_prepare_surface(cache[cache_left_index].index - 1, i, prio_l)) { lla_insert_before(&cache_used, i, cache_left_index); cache_left_index = i; return true; } } else if(cache[cache_right_index].index < number_of_slides - 1) { if (cache_free == -1 && !free_slide_prio(prio_r)) return false; i = lla_pop_head(&cache_free); if (load_and_prepare_surface(cache[cache_right_index].index + 1, i, prio_r)) { lla_insert_after(i, cache_right_index); cache_right_index = i; return true; } } } else { i = lla_pop_head(&cache_free); if (load_and_prepare_surface(center_index, i, 0)) { insert_first_slide: cache[i].next = i; cache[i].prev = i; cache_center_index = i; cache_left_index = i; cache_right_index = i; cache_used = i; return true; } } fail_and_refree: if (i != -1) { lla_insert_tail(&cache_free, i); } return false; } /** Get a slide from the buffer */ static inline struct dim *get_slide(const int hid) { if (!hid) return NULL; struct dim *bmp; bmp = buflib_get_data(&buf_ctx, hid); return bmp; } /** Return the requested surface */ static inline struct dim *surface(const int slide_index) { if (slide_index < 0) return 0; if (slide_index >= number_of_slides) return 0; int i; if ((i = cache_used ) != -1) { do { if (cache[i].index == slide_index) return get_slide(cache[i].hid); i = cache[i].next; } while (i != cache_used); } return get_slide(empty_slide_hid); } /** adjust slides so that they are in "steady state" position */ void reset_slides(void) { center_slide.angle = 0; center_slide.cx = 0; center_slide.cy = 0; center_slide.distance = 0; center_slide.slide_index = center_index; int i; for (i = 0; i < num_slides; i++) { struct slide_data *si = &left_slides[i]; si->angle = itilt; si->cx = -(offsetX + slide_spacing * i * PFREAL_ONE); si->cy = offsetY; si->slide_index = center_index - 1 - i; si->distance = 0; } for (i = 0; i < num_slides; i++) { struct slide_data *si = &right_slides[i]; si->angle = -itilt; si->cx = offsetX + slide_spacing * i * PFREAL_ONE; si->cy = offsetY; si->slide_index = center_index + 1 + i; si->distance = 0; } } /** Updates look-up table and other stuff necessary for the rendering. Call this when the viewport size or slide dimension is changed. * * To calculate the offset that will provide the proper margin, we use the same * projection used to render the slides. The solution for xc, the slide center, * is: * xp * (zo + xs * sin(r)) * xc = xp - xs * cos(r) + ─────────────────────── * z * TODO: support moving the side slides toward or away from the camera */ void recalc_offsets(void) { PFreal xs = PFREAL_HALF - DISPLAY_WIDTH * PFREAL_HALF; PFreal zo; PFreal xp = (DISPLAY_WIDTH * PFREAL_HALF - PFREAL_HALF + center_margin * PFREAL_ONE) * zoom / 100; PFreal cosr, sinr; itilt = 70 * IANGLE_MAX / 360; /* approx. 70 degrees tilted */ cosr = fcos(-itilt); sinr = fsin(-itilt); zo = CAM_DIST_R * 100 / zoom - CAM_DIST_R + fmuln(MAXSLIDE_LEFT_R, sinr, PFREAL_SHIFT - 2, 0); offsetX = xp - fmul(xs, cosr) + fmuln(xp, zo + fmuln(xs, sinr, PFREAL_SHIFT - 2, 0), PFREAL_SHIFT - 2, 0) / CAM_DIST; offsetY = DISPLAY_WIDTH / 2 * (fsin(itilt) + PFREAL_ONE / 2); } /** Fade the given color by spreading the fb_data (ushort) to an uint, multiply and compress the result back to a ushort. */ #if (LCD_PIXELFORMAT == RGB565SWAPPED) static inline unsigned fade_color(pix_t c, unsigned a) { unsigned int result; c = swap16(c); a = (a + 2) & 0x1fc; result = ((c & 0xf81f) * a) & 0xf81f00; result |= ((c & 0x7e0) * a) & 0x7e000; result >>= 8; return swap16(result); } #elif LCD_PIXELFORMAT == RGB565 static inline unsigned fade_color(pix_t c, unsigned a) { unsigned int result; a = (a + 2) & 0x1fc; result = ((c & 0xf81f) * a) & 0xf81f00; result |= ((c & 0x7e0) * a) & 0x7e000; result >>= 8; return result; } #else static inline unsigned fade_color(pix_t c, unsigned a) { unsigned val = c; return MULUQ(val, a) >> 8; } #endif /** * Render a single slide * Where xc is the slide's horizontal offset from center, xs is the horizontal * on the slide from its center, zo is the slide's depth offset from the plane * of the display, r is the angle at which the slide is tilted, and xp is the * point on the display corresponding to xs on the slide, the projection * formulas are: * * z * (xc + xs * cos(r)) * xp = ────────────────────── * z + zo + xs * sin(r) * * z * (xc - xp) - xp * zo * xs = ──────────────────────── * xp * sin(r) - z * cos(r) * * We use the xp projection once, to find the left edge of the slide on the * display. From there, we use the xs reverse projection to find the horizontal * offset from the slide center of each column on the screen, until we reach * the right edge of the slide, or the screen. The reverse projection can be * optimized by saving the numerator and denominator of the fraction, which can * then be incremented by (z + zo) and sin(r) respectively. */ void render_slide(struct slide_data *slide, const int alpha) { struct dim *bmp = surface(slide->slide_index); if (!bmp) { return; } if (slide->angle > 255 || slide->angle < -255) return; pix_t *src = (pix_t*)(sizeof(struct dim) + (char *)bmp); const int sw = bmp->width; const int sh = bmp->height; const PFreal slide_left = -sw * PFREAL_HALF + PFREAL_HALF; const int w = LCD_WIDTH; uint8_t reftab[REFLECT_HEIGHT]; /* on stack, which is in IRAM on several targets */ if (alpha == 256) { /* opaque -> copy table */ rb->memcpy(reftab, reflect_table, sizeof(reftab)); } else { /* precalculate faded table */ int i, lalpha; for (i = 0; i < REFLECT_HEIGHT; i++) { lalpha = reflect_table[i]; reftab[i] = (MULUQ(lalpha, alpha) + 129) >> 8; } } PFreal cosr = fcos(slide->angle); PFreal sinr = fsin(slide->angle); PFreal zo = PFREAL_ONE * slide->distance + CAM_DIST_R * 100 / zoom - CAM_DIST_R - fmuln(MAXSLIDE_LEFT_R, fabs(sinr), PFREAL_SHIFT - 2, 0); PFreal xs = slide_left, xsnum, xsnumi, xsden, xsdeni; PFreal xp = fdiv(CAM_DIST * (slide->cx + fmul(xs, cosr)), (CAM_DIST_R + zo + fmul(xs,sinr))); /* Since we're finding the screen position of the left edge of the slide, * we round up. */ int xi = (fmax(DISPLAY_LEFT_R, xp) - DISPLAY_LEFT_R + PFREAL_ONE - 1) >> PFREAL_SHIFT; xp = DISPLAY_LEFT_R + xi * PFREAL_ONE; if (xi >= w) { return; } xsnum = CAM_DIST * (slide->cx - xp) - fmuln(xp, zo, PFREAL_SHIFT - 2, 0); xsden = fmuln(xp, sinr, PFREAL_SHIFT - 2, 0) - CAM_DIST * cosr; xs = fdiv(xsnum, xsden); xsnumi = -CAM_DIST_R - zo; xsdeni = sinr; int x; int dy = PFREAL_ONE; for (x = xi; x < w; x++) { int column = (xs - slide_left) / PFREAL_ONE; if (column >= sw) break; if (zo || slide->angle) dy = (CAM_DIST_R + zo + fmul(xs, sinr)) / CAM_DIST; const pix_t *ptr = &src[column * bmp->height]; #if defined(LCD_STRIDEFORMAT) && LCD_STRIDEFORMAT == VERTICAL_STRIDE #define PIXELSTEP_Y 1 #define LCDADDR(x, y) (&buffer[BUFFER_HEIGHT*(x) + (y)]) #else #define PIXELSTEP_Y BUFFER_WIDTH #define LCDADDR(x, y) (&buffer[(y)*BUFFER_WIDTH + (x)]) #endif int p = (bmp->height-1-DISPLAY_OFFS) * PFREAL_ONE; int plim = MAX(0, p - (LCD_HEIGHT/2-1) * dy); pix_t *pixel = LCDADDR(x, (LCD_HEIGHT/2)-1 ); if (alpha == 256) { while (p >= plim) { *pixel = ptr[((unsigned)p) >> PFREAL_SHIFT]; p -= dy; pixel -= PIXELSTEP_Y; } } else { while (p >= plim) { *pixel = fade_color(ptr[((unsigned)p) >> PFREAL_SHIFT], alpha); p -= dy; pixel -= PIXELSTEP_Y; } } p = (bmp->height-DISPLAY_OFFS) * PFREAL_ONE; plim = MIN(sh * PFREAL_ONE, p + (LCD_HEIGHT/2) * dy); int plim2 = MIN(MIN(sh + REFLECT_HEIGHT, sh * 2) * PFREAL_ONE, p + (LCD_HEIGHT/2) * dy); pixel = LCDADDR(x, (LCD_HEIGHT/2) ); if (alpha == 256) { while (p < plim) { *pixel = ptr[((unsigned)p) >> PFREAL_SHIFT]; p += dy; pixel += PIXELSTEP_Y; } } else { while (p < plim) { *pixel = fade_color(ptr[((unsigned)p) >> PFREAL_SHIFT], alpha); p += dy; pixel += PIXELSTEP_Y; } } while (p < plim2) { int ty = (((unsigned)p) >> PFREAL_SHIFT) - sh; int lalpha = reftab[ty]; *pixel = fade_color(ptr[sh - 1 - ty], lalpha); p += dy; pixel += PIXELSTEP_Y; } if (zo || slide->angle) { xsnum += xsnumi; xsden += xsdeni; xs = fdiv(xsnum, xsden); } else xs += PFREAL_ONE; } /* let the music play... */ rb->yield(); return; } /** Jump the the given slide_index */ static inline void set_current_slide(const int slide_index) { int old_center_index = center_index; step = 0; center_index = fbound(slide_index, 0, number_of_slides - 1); if (old_center_index != center_index) rb->queue_post(&thread_q, EV_WAKEUP, 0); target = center_index; slide_frame = slide_index << 16; reset_slides(); } /** Start the animation for changing slides */ void start_animation(void) { step = (target < center_slide.slide_index) ? -1 : 1; pf_state = pf_scrolling; } /** Go to the previous slide */ void show_previous_slide(void) { if (step == 0) { if (center_index > 0) { target = center_index - 1; start_animation(); } } else if ( step > 0 ) { target = center_index; start_animation(); } else { target = fmax(0, center_index - 2); } } /** Go to the next slide */ void show_next_slide(void) { if (step == 0) { if (center_index < number_of_slides - 1) { target = center_index + 1; start_animation(); } } else if ( step < 0 ) { target = center_index; start_animation(); } else { target = fmin(center_index + 2, number_of_slides - 1); } } /** Render the slides. Updates only the offscreen buffer. */ void render_all_slides(void) { MYLCD(set_background)(G_BRIGHT(0)); /* TODO: Optimizes this by e.g. invalidating rects */ MYLCD(clear_display)(); int nleft = num_slides; int nright = num_slides; int index; if (step == 0) { /* no animation, boring plain rendering */ for (index = nleft - 2; index >= 0; index--) { int alpha = (index < nleft - 2) ? 256 : 128; alpha -= extra_fade; if (alpha > 0 ) render_slide(&left_slides[index], alpha); } for (index = nright - 2; index >= 0; index--) { int alpha = (index < nright - 2) ? 256 : 128; alpha -= extra_fade; if (alpha > 0 ) render_slide(&right_slides[index], alpha); } } else { /* the first and last slide must fade in/fade out */ for (index = nleft - 1; index >= 0; index--) { int alpha = 256; if (index == nleft - 1) alpha = (step > 0) ? 0 : 128 - fade / 2; if (index == nleft - 2) alpha = (step > 0) ? 128 - fade / 2 : 256 - fade / 2; if (index == nleft - 3) alpha = (step > 0) ? 256 - fade / 2 : 256; render_slide(&left_slides[index], alpha); } for (index = nright - 1; index >= 0; index--) { int alpha = (index < nright - 2) ? 256 : 128; if (index == nright - 1) alpha = (step > 0) ? fade / 2 : 0; if (index == nright - 2) alpha = (step > 0) ? 128 + fade / 2 : fade / 2; if (index == nright - 3) alpha = (step > 0) ? 256 : 128 + fade / 2; render_slide(&right_slides[index], alpha); } } render_slide(¢er_slide, 256); } /** Updates the animation effect. Call this periodically from a timer. */ void update_scroll_animation(void) { if (step == 0) return; int speed = 16384; int i; /* deaccelerate when approaching the target */ if (true) { const int max = 2 * 65536; int fi = slide_frame; fi -= (target << 16); if (fi < 0) fi = -fi; fi = fmin(fi, max); int ia = IANGLE_MAX * (fi - max / 2) / (max * 2); speed = 512 + 16384 * (PFREAL_ONE + fsin(ia)) / PFREAL_ONE; } slide_frame += speed * step; int index = slide_frame >> 16; int pos = slide_frame & 0xffff; int neg = 65536 - pos; int tick = (step < 0) ? neg : pos; PFreal ftick = (tick * PFREAL_ONE) >> 16; /* the leftmost and rightmost slide must fade away */ fade = pos / 256; if (step < 0) index++; if (center_index != index) { center_index = index; rb->queue_post(&thread_q, EV_WAKEUP, 0); slide_frame = index << 16; center_slide.slide_index = center_index; for (i = 0; i < num_slides; i++) left_slides[i].slide_index = center_index - 1 - i; for (i = 0; i < num_slides; i++) right_slides[i].slide_index = center_index + 1 + i; } center_slide.angle = (step * tick * itilt) >> 16; center_slide.cx = -step * fmul(offsetX, ftick); center_slide.cy = fmul(offsetY, ftick); if (center_index == target) { reset_slides(); pf_state = pf_idle; step = 0; fade = 256; return; } for (i = 0; i < num_slides; i++) { struct slide_data *si = &left_slides[i]; si->angle = itilt; si->cx = -(offsetX + slide_spacing * i * PFREAL_ONE + step * slide_spacing * ftick); si->cy = offsetY; } for (i = 0; i < num_slides; i++) { struct slide_data *si = &right_slides[i]; si->angle = -itilt; si->cx = offsetX + slide_spacing * i * PFREAL_ONE - step * slide_spacing * ftick; si->cy = offsetY; } if (step > 0) { PFreal ftick = (neg * PFREAL_ONE) >> 16; right_slides[0].angle = -(neg * itilt) >> 16; right_slides[0].cx = fmul(offsetX, ftick); right_slides[0].cy = fmul(offsetY, ftick); } else { PFreal ftick = (pos * PFREAL_ONE) >> 16; left_slides[0].angle = (pos * itilt) >> 16; left_slides[0].cx = -fmul(offsetX, ftick); left_slides[0].cy = fmul(offsetY, ftick); } /* must change direction ? */ if (target < index) if (step > 0) step = -1; if (target > index) if (step < 0) step = 1; } /** Cleanup the plugin */ void cleanup(void *parameter) { (void) parameter; int i; #ifdef HAVE_ADJUSTABLE_CPU_FREQ rb->cpu_boost(false); #endif end_pf_thread(); /* Turn on backlight timeout (revert to settings) */ backlight_use_settings(); /* backlight control in lib/helper.c */ #ifdef USEGSLIB grey_release(); #endif FOR_NB_SCREENS(i) rb->viewportmanager_theme_undo(i, false); } /** Create the "?" slide, that is shown while loading or when no cover was found. */ int create_empty_slide(bool force) { if ( force || ! rb->file_exists( EMPTY_SLIDE ) ) { struct bitmap input_bmp; int ret; input_bmp.width = DISPLAY_WIDTH; input_bmp.height = DISPLAY_HEIGHT; #if LCD_DEPTH > 1 input_bmp.format = FORMAT_NATIVE; #endif input_bmp.data = (char*)buf; ret = scaled_read_bmp_file(EMPTY_SLIDE_BMP, &input_bmp, buf_size, FORMAT_NATIVE|FORMAT_RESIZE|FORMAT_KEEP_ASPECT, &format_transposed); if (!save_pfraw(EMPTY_SLIDE, &input_bmp)) return false; } return true; } /** Shows the settings menu */ int settings_menu(void) { int selection = 0; bool old_val; MENUITEM_STRINGLIST(settings_menu, "PictureFlow Settings", NULL, "Show FPS", "Spacing", "Centre margin", "Number of slides", "Zoom", "Show album title", "Resize Covers", "Rebuild cache"); static const struct opt_items album_name_options[] = { { "Hide album title", -1 }, { "Show at the bottom", -1 }, { "Show at the top", -1 } }; do { selection=rb->do_menu(&settings_menu,&selection, NULL, true); switch(selection) { case 0: rb->set_bool("Show FPS", &show_fps); reset_track_list(); break; case 1: rb->set_int("Spacing between slides", "", 1, &slide_spacing, NULL, 1, 0, 100, NULL ); recalc_offsets(); reset_slides(); break; case 2: rb->set_int("Centre margin", "", 1, ¢er_margin, NULL, 1, 0, 80, NULL ); recalc_offsets(); reset_slides(); break; case 3: rb->set_int("Number of slides", "", 1, &num_slides, NULL, 1, 1, MAX_SLIDES_COUNT, NULL ); recalc_offsets(); reset_slides(); break; case 4: rb->set_int("Zoom", "", 1, &zoom, NULL, 1, 10, 300, NULL ); recalc_offsets(); reset_slides(); break; case 5: rb->set_option("Show album title", &show_album_name, INT, album_name_options, 3, NULL); reset_track_list(); recalc_offsets(); reset_slides(); break; case 6: old_val = resize; rb->set_bool("Resize Covers", &resize); if (old_val == resize) /* changed? */ break; /* fallthrough if changed, since cache needs to be rebuilt */ case 7: cache_version = 0; rb->remove(EMPTY_SLIDE); rb->splash(HZ, "Cache will be rebuilt on next restart"); break; case MENU_ATTACHED_USB: return PLUGIN_USB_CONNECTED; } } while ( selection >= 0 ); configfile_save(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION); return 0; } /** Show the main menu */ enum { PF_GOTO_WPS, #if PF_PLAYBACK_CAPABLE PF_MENU_PLAYBACK_CONTROL, #endif PF_MENU_SETTINGS, PF_MENU_RETURN, PF_MENU_QUIT, }; int main_menu(void) { int selection = 0; int result; #if LCD_DEPTH > 1 rb->lcd_set_foreground(N_BRIGHT(255)); #endif MENUITEM_STRINGLIST(main_menu,"PictureFlow Main Menu",NULL, "Go to WPS", #if PF_PLAYBACK_CAPABLE "Playback Control", #endif "Settings", "Return", "Quit"); while (1) { switch (rb->do_menu(&main_menu,&selection, NULL, true)) { case PF_GOTO_WPS: /* WPS */ return -2; #if PF_PLAYBACK_CAPABLE case PF_MENU_PLAYBACK_CONTROL: /* Playback Control */ playback_control(NULL); break; #endif case PF_MENU_SETTINGS: result = settings_menu(); if ( result != 0 ) return result; break; case PF_MENU_RETURN: return 0; case PF_MENU_QUIT: return -1; case MENU_ATTACHED_USB: return PLUGIN_USB_CONNECTED; default: return 0; } } } /** Animation step for zooming into the current cover */ void update_cover_in_animation(void) { cover_animation_keyframe++; if( cover_animation_keyframe < 20 ) { center_slide.distance-=5; center_slide.angle+=1; extra_fade += 13; } else if( cover_animation_keyframe < 35 ) { center_slide.angle+=16; } else { cover_animation_keyframe = 0; pf_state = pf_show_tracks; } } /** Animation step for zooming out the current cover */ void update_cover_out_animation(void) { cover_animation_keyframe++; if( cover_animation_keyframe <= 15 ) { center_slide.angle-=16; } else if( cover_animation_keyframe < 35 ) { center_slide.distance+=5; center_slide.angle-=1; extra_fade -= 13; } else { cover_animation_keyframe = 0; pf_state = pf_idle; } } /** Draw a blue gradient at y with height h */ static inline void draw_gradient(int y, int h) { static int r, inc, c; inc = (100 << 8) / h; c = 0; selected_track_pulse = (selected_track_pulse+1) % 10; int c2 = selected_track_pulse - 5; for (r=0; r> 9), c2+100-(c >> 9), c2+250-(c >> 8))); #else MYLCD(set_foreground)(G_BRIGHT(c2+160-(c >> 8))); #endif MYLCD(hline)(0, LCD_WIDTH, r+y); if ( r > h/2 ) c-=inc; else c+=inc; } } static void track_list_yh(int char_height) { switch (show_album_name) { case album_name_hide: track_list_y = (show_fps ? char_height : 0); track_list_h = LCD_HEIGHT - track_list_y; break; case album_name_bottom: track_list_y = (show_fps ? char_height : 0); track_list_h = LCD_HEIGHT - track_list_y - char_height * 2; break; default: /* case album_name_top */ track_list_y = char_height * 2; track_list_h = LCD_HEIGHT - track_list_y - (show_fps ? char_height : 0); break; } } /** Reset the track list after a album change */ void reset_track_list(void) { int albumtxt_h = rb->screens[SCREEN_MAIN]->getcharheight(); track_list_yh(albumtxt_h); track_list_visible_entries = fmin( track_list_h/albumtxt_h , track_count ); start_index_track_list = 0; track_scroll_index = 0; track_scroll_dir = 1; selected_track = 0; /* let the tracklist start more centered * if the screen isn't filled with tracks */ if (track_count*albumtxt_h < track_list_h) { track_list_h = track_count * albumtxt_h; track_list_y = LCD_HEIGHT / 2 - (track_list_h / 2); } } /** Display the list of tracks */ void show_track_list(void) { MYLCD(clear_display)(); if ( center_slide.slide_index != track_index ) { create_track_index(center_slide.slide_index); reset_track_list(); } static int titletxt_w, titletxt_x, color, titletxt_h; titletxt_h = rb->screens[SCREEN_MAIN]->getcharheight(); int titletxt_y = track_list_y; int track_i; track_i = start_index_track_list; for (;track_i < track_list_visible_entries+start_index_track_list; track_i++) { MYLCD(getstringsize)(get_track_name(track_i), &titletxt_w, NULL); titletxt_x = (LCD_WIDTH-titletxt_w)/2; if ( track_i == selected_track ) { draw_gradient(titletxt_y, titletxt_h); MYLCD(set_foreground)(G_BRIGHT(255)); if (titletxt_w > LCD_WIDTH ) { if ( titletxt_w + track_scroll_index <= LCD_WIDTH ) track_scroll_dir = 1; else if ( track_scroll_index >= 0 ) track_scroll_dir = -1; track_scroll_index += track_scroll_dir*2; titletxt_x = track_scroll_index; } MYLCD(putsxy)(titletxt_x,titletxt_y,get_track_name(track_i)); } else { color = 250 - (abs(selected_track - track_i) * 200 / track_count); MYLCD(set_foreground)(G_BRIGHT(color)); MYLCD(putsxy)(titletxt_x,titletxt_y,get_track_name(track_i)); } titletxt_y += titletxt_h; } } void select_next_track(void) { if ( selected_track < track_count - 1 ) { selected_track++; track_scroll_index = 0; track_scroll_dir = 1; if (selected_track==(track_list_visible_entries+start_index_track_list)) start_index_track_list++; } } void select_prev_track(void) { if (selected_track > 0 ) { if (selected_track==start_index_track_list) start_index_track_list--; track_scroll_index = 0; track_scroll_dir = 1; selected_track--; } } #if PF_PLAYBACK_CAPABLE /* * Puts the current tracklist into a newly created playlist and starts playling */ void start_playback(void) { static int old_playlist = -1, old_shuffle = 0; int count = 0; int position = selected_track; int shuffle = rb->global_settings->playlist_shuffle; /* reuse existing playlist if possible * regenerate if shuffle is on or changed, since playlist index and * selected track are "out of sync" */ if (!shuffle && center_slide.slide_index == old_playlist && (old_shuffle == shuffle)) { goto play; } /* First, replace the current playlist with a new one */ else if (rb->playlist_remove_all_tracks(NULL) == 0 && rb->playlist_create(NULL, NULL) == 0) { do { rb->yield(); if (rb->playlist_insert_track(NULL, get_track_filename(count), PLAYLIST_INSERT_LAST, false, true) < 0) break; } while(++count < track_count); rb->playlist_sync(NULL); } else return; if (rb->global_settings->playlist_shuffle) position = rb->playlist_shuffle(*rb->current_tick, selected_track); play: /* TODO: can we adjust selected_track if !play_selected ? * if shuffle, we can't predict the playing track easily, and for either * case the track list doesn't get auto scrolled*/ rb->playlist_start(position, 0); old_playlist = center_slide.slide_index; old_shuffle = shuffle; } #endif /** Draw the current album name */ void draw_album_text(void) { if (0 == show_album_name) return; int albumtxt_w, albumtxt_h; int albumtxt_y = 0; char *albumtxt; int c; /* Draw album text */ if ( pf_state == pf_scrolling ) { c = ((slide_frame & 0xffff )/ 255); if (step < 0) c = 255-c; if (c > 128 ) { /* half way to next slide .. still not perfect! */ albumtxt = get_album_name(center_index+step); c = (c-128)*2; } else { albumtxt = get_album_name(center_index); c = (128-c)*2; } } else { c= 255; albumtxt = get_album_name(center_index); } MYLCD(set_foreground)(G_BRIGHT(c)); MYLCD(getstringsize)(albumtxt, &albumtxt_w, &albumtxt_h); if (center_index != prev_center_index) { albumtxt_x = 0; albumtxt_dir = -1; prev_center_index = center_index; } if (show_album_name == album_name_top) albumtxt_y = albumtxt_h / 2; else albumtxt_y = LCD_HEIGHT - albumtxt_h - albumtxt_h/2; if (albumtxt_w > LCD_WIDTH ) { MYLCD(putsxy)(albumtxt_x, albumtxt_y , albumtxt); if ( pf_state == pf_idle || pf_state == pf_show_tracks ) { if ( albumtxt_w + albumtxt_x <= LCD_WIDTH ) albumtxt_dir = 1; else if ( albumtxt_x >= 0 ) albumtxt_dir = -1; albumtxt_x += albumtxt_dir; } } else { MYLCD(putsxy)((LCD_WIDTH - albumtxt_w) /2, albumtxt_y , albumtxt); } } /** Display an error message and wait for input. */ void error_wait(const char *message) { rb->splashf(0, "%s. Press any button to continue.", message); while (rb->get_action(CONTEXT_STD, 1) == ACTION_NONE) rb->yield(); rb->sleep(2 * HZ); } /** Main function that also contain the main plasma algorithm. */ int main(void) { int ret; rb->lcd_setfont(FONT_UI); draw_splashscreen(); if ( ! rb->dir_exists( CACHE_PREFIX ) ) { if ( rb->mkdir( CACHE_PREFIX ) < 0 ) { error_wait("Could not create directory " CACHE_PREFIX); return PLUGIN_ERROR; } } configfile_load(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION); init_reflect_table(); ALIGN_BUFFER(buf, buf_size, 4); ret = create_album_index(); if (ret == ERROR_BUFFER_FULL) { error_wait("Not enough memory for album names"); return PLUGIN_ERROR; } else if (ret == ERROR_NO_ALBUMS) { error_wait("No albums found. Please enable database"); return PLUGIN_ERROR; } ALIGN_BUFFER(buf, buf_size, 4); number_of_slides = album_count; if ((cache_version != CACHE_VERSION) && !create_albumart_cache()) { error_wait("Could not create album art cache"); return PLUGIN_ERROR; } if (!create_empty_slide(cache_version != CACHE_VERSION)) { error_wait("Could not load the empty slide"); return PLUGIN_ERROR; } cache_version = CACHE_VERSION; configfile_save(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION); #ifdef USEGSLIB long grey_buf_used; if (!grey_init(buf, buf_size, GREY_BUFFERED|GREY_ON_COP, LCD_WIDTH, LCD_HEIGHT, &grey_buf_used)) { error_wait("Greylib init failed!"); return PLUGIN_ERROR; } grey_setfont(FONT_UI); buf_size -= grey_buf_used; buf = (void*)(grey_buf_used + (char*)buf); #endif buflib_init(&buf_ctx, (void *)buf, buf_size); if (!(empty_slide_hid = read_pfraw(EMPTY_SLIDE, 0))) { error_wait("Unable to load empty slide image"); return PLUGIN_ERROR; } if (!create_pf_thread()) { error_wait("Cannot create thread!"); return PLUGIN_ERROR; } int i; /* initialize */ for (i = 0; i < SLIDE_CACHE_SIZE; i++) { cache[i].hid = 0; cache[i].index = 0; cache[i].next = i + 1; cache[i].prev = i - 1; } cache[0].prev = i - 1; cache[i - 1].next = 0; cache_free = 0; buffer = LCD_BUF; pf_state = pf_idle; track_index = -1; extra_fade = 0; slide_frame = 0; step = 0; target = 0; fade = 256; recalc_offsets(); reset_slides(); char fpstxt[10]; int button; int frames = 0; long last_update = *rb->current_tick; long current_update; long update_interval = 100; int fps = 0; int fpstxt_y; bool instant_update; #ifdef USEGSLIB grey_show(true); grey_set_drawmode(DRMODE_FG); #endif rb->lcd_set_drawmode(DRMODE_FG); while (true) { current_update = *rb->current_tick; frames++; /* Initial rendering */ instant_update = false; /* Handle states */ switch ( pf_state ) { case pf_scrolling: update_scroll_animation(); render_all_slides(); instant_update = true; break; case pf_cover_in: update_cover_in_animation(); render_all_slides(); instant_update = true; break; case pf_cover_out: update_cover_out_animation(); render_all_slides(); instant_update = true; break; case pf_show_tracks: show_track_list(); break; case pf_idle: render_all_slides(); break; } /* Calculate FPS */ if (current_update - last_update > update_interval) { fps = frames * HZ / (current_update - last_update); last_update = current_update; frames = 0; } /* Draw FPS */ if (show_fps) { #ifdef USEGSLIB MYLCD(set_foreground)(G_BRIGHT(255)); #else MYLCD(set_foreground)(G_PIX(255,0,0)); #endif rb->snprintf(fpstxt, sizeof(fpstxt), "FPS: %d", fps); if (show_album_name == album_name_top) fpstxt_y = LCD_HEIGHT - rb->screens[SCREEN_MAIN]->getcharheight(); else fpstxt_y = 0; MYLCD(putsxy)(0, fpstxt_y, fpstxt); } draw_album_text(); /* Copy offscreen buffer to LCD and give time to other threads */ MYLCD(update)(); rb->yield(); /*/ Handle buttons */ button = rb->get_custom_action(CONTEXT_PLUGIN #ifndef USE_CORE_PREVNEXT |(pf_state == pf_show_tracks ? 1 : 0) #endif ,instant_update ? 0 : HZ/16, get_context_map); switch (button) { case PF_QUIT: return PLUGIN_OK; case PF_WPS: return PLUGIN_GOTO_WPS; case PF_BACK: if ( pf_state == pf_show_tracks ) { buflib_buffer_in(&buf_ctx, borrowed); borrowed = 0; track_index = -1; pf_state = pf_cover_out; } if (pf_state == pf_idle || pf_state == pf_scrolling) return PLUGIN_OK; break; case PF_MENU: #ifdef USEGSLIB grey_show(false); #endif ret = main_menu(); if ( ret == -2 ) return PLUGIN_GOTO_WPS; if ( ret == -1 ) return PLUGIN_OK; if ( ret != 0 ) return ret; #ifdef USEGSLIB grey_show(true); #endif MYLCD(set_drawmode)(DRMODE_FG); break; case PF_NEXT: case PF_NEXT_REPEAT: if ( pf_state == pf_show_tracks ) select_next_track(); if ( pf_state == pf_idle || pf_state == pf_scrolling ) show_next_slide(); break; case PF_PREV: case PF_PREV_REPEAT: if ( pf_state == pf_show_tracks ) select_prev_track(); if ( pf_state == pf_idle || pf_state == pf_scrolling ) show_previous_slide(); break; case PF_SELECT: if ( pf_state == pf_idle ) { pf_state = pf_cover_in; } else if ( pf_state == pf_show_tracks ) { #if PF_PLAYBACK_CAPABLE start_playback(); #endif } 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(const void *parameter) { int ret, i; (void) parameter; FOR_NB_SCREENS(i) rb->viewportmanager_theme_enable(i, false, NULL); /* Turn off backlight timeout */ backlight_force_on(); /* backlight control in lib/helper.c */ #ifdef HAVE_ADJUSTABLE_CPU_FREQ rb->cpu_boost(true); #endif #if PF_PLAYBACK_CAPABLE buf = rb->plugin_get_buffer(&buf_size); #else buf = rb->plugin_get_audio_buffer(&buf_size); #ifndef SIMULATOR if ((uintptr_t)buf < (uintptr_t)plugin_start_addr) { uint32_t tmp_size = (uintptr_t)plugin_start_addr - (uintptr_t)buf; buf_size = MIN(buf_size, tmp_size); } #endif #endif ret = main(); if ( ret == PLUGIN_OK ) { if (configfile_save(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION)) { rb->splash(HZ, "Error writing config."); ret = PLUGIN_ERROR; } } cleanup(NULL); return ret; }