/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2005 Tomas Salfischberger * * 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" PLUGIN_HEADER /* save the plugin api pointer. */ static const struct plugin_api* rb; /* screen info */ static int display_columns, display_lines; /* Some lenghts */ #define WORDLEN 32 /* has to be the same in rdf2binary.c */ /* Struct packing */ #ifdef __GNUC__ #define STRUCT_PACKED __attribute__((packed)) #else #define STRUCT_PACKED #pragma pack (push, 2) #endif /* The word struct :) */ struct stWord { char word[WORDLEN]; long offset; } STRUCT_PACKED; /* A funtion to get width and height etc (from viewer.c) */ void init_screen(void) { #ifdef HAVE_LCD_BITMAP int w,h; rb->lcd_getstringsize("o", &w, &h); display_lines = LCD_HEIGHT / h; display_columns = LCD_WIDTH / w; #else display_lines = 2; display_columns = 11; #endif } /* global vars for pl_malloc() */ void *bufptr; ssize_t bufleft; /* simple function to "allocate" memory in pluginbuffer. */ void *pl_malloc(ssize_t size) { void *ptr; ptr = bufptr; if (bufleft < size) { return NULL; } else { bufptr += size; bufleft -= size; return ptr; } } /* init function for pl_malloc() */ void pl_malloc_init(void) { bufptr = rb->plugin_get_buffer((size_t *)&bufleft); } /* for endian problems */ #ifdef ROCKBOX_BIG_ENDIAN #define reverse(x) x #else long reverse (long N) { unsigned char B[4]; B[0] = (N & 0x000000FF) >> 0; B[1] = (N & 0x0000FF00) >> 8; B[2] = (N & 0x00FF0000) >> 16; B[3] = (N & 0xFF000000) >> 24; return ((B[0] << 24) | (B[1] << 16) | (B[2] << 8) | (B[3] << 0)); } #endif /* Button definitions */ #if CONFIG_KEYPAD == PLAYER_PAD #define LP_QUIT BUTTON_STOP #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \ (CONFIG_KEYPAD == IPOD_3G_PAD) || \ (CONFIG_KEYPAD == IPOD_1G2G_PAD) #define LP_QUIT BUTTON_MENU #elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD #define LP_QUIT BUTTON_PLAY #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD #define LP_QUIT BUTTON_POWER #elif CONFIG_KEYPAD == GIGABEAT_PAD #define LP_QUIT BUTTON_POWER #elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \ (CONFIG_KEYPAD == SANSA_C200_PAD) #define LP_QUIT BUTTON_POWER #elif CONFIG_KEYPAD == IRIVER_H10_PAD #define LP_QUIT BUTTON_POWER #elif CONFIG_KEYPAD == MROBE500_PAD #define LP_QUIT BUTTON_POWER #elif CONFIG_KEYPAD == MROBE100_PAD #define LP_QUIT BUTTON_POWER #elif CONFIG_KEYPAD == GIGABEAT_S_PAD #define LP_QUIT BUTTON_BACK #elif CONFIG_KEYPAD == IAUDIO_M3_PAD #define LP_QUIT BUTTON_RC_REC #elif CONFIG_KEYPAD == COWOND2_PAD #define LP_QUIT BUTTON_POWER #elif CONFIG_KEYPAD == IAUDIO67_PAD #define LP_QUIT BUTTON_POWER #else #define LP_QUIT BUTTON_OFF #endif /* data files */ #define DICT_INDEX ROCKBOX_DIR "/rocks/apps/dict.index" #define DICT_DESC ROCKBOX_DIR "/rocks/apps/dict.desc" /* the main plugin function */ enum plugin_status plugin_start(const struct plugin_api* api, const void* parameter) { char searchword[WORDLEN]; /* word to search for */ char *description; /* pointer to description buffer */ char *output; /* pointer to output buffer */ char *ptr, *space; struct stWord word; /* the struct to read into */ int fIndex, fData; /* files */ int filesize, high, low, probe; int lines, len, outputted, next; /* plugin stuff */ (void)parameter; rb = api; /* get screen info */ init_screen(); /* get pl_malloc() buffer ready. */ pl_malloc_init(); /* init description buffer (size is because we don't have scrolling)*/ description = (char *)pl_malloc(display_columns * display_lines); if (description == NULL) { DEBUGF("Err: failed to allocate description buffer."); return PLUGIN_ERROR; } /* init output buffer */ output = (char *)pl_malloc(display_columns); if (output == NULL) { DEBUGF("Err: failed to allocate output buffer."); return PLUGIN_ERROR; } /* "clear" input buffer */ searchword[0] = '\0'; rb->kbd_input(searchword, sizeof(searchword)); /* get the word to search */ fIndex = rb->open(DICT_INDEX, O_RDONLY); /* index file */ if (fIndex < 0) { DEBUGF("Err: Failed to open index file.\n"); rb->splash(HZ*2, "Failed to open index."); return PLUGIN_ERROR; } filesize = rb->filesize(fIndex); /* get filesize */ DEBUGF("Filesize: %d bytes = %d words \n", filesize, (filesize / (int)sizeof(struct stWord))); /* for the searching algorithm */ high = filesize / sizeof( struct stWord ); low = -1; while (high - low > 1) { probe = (high + low) / 2; /* Jump to word pointed by probe, and read it. */ rb->lseek(fIndex, sizeof(struct stWord) * probe, SEEK_SET); rb->read(fIndex, &word, sizeof(struct stWord)); /* jump according to the found word. */ if (rb->strcasecmp(searchword, word.word) < 0) { high = probe; } else { low = probe; } } /* read in the word */ rb->lseek(fIndex, sizeof(struct stWord) * low, SEEK_SET); rb->read(fIndex, &word, sizeof(struct stWord)); /* Check if we found something */ if (low == -1 || rb->strcasecmp(searchword, word.word) != 0) { DEBUGF("Not found.\n"); rb->splash(HZ*2, "Not found."); rb->close(fIndex); return PLUGIN_OK; } DEBUGF("Found %s at offset %ld\n", word.word, reverse(word.offset)); /* now open the description file */ fData = rb->open(DICT_DESC, O_RDONLY); if (fData < 0) { DEBUGF("Err: Failed to open description file.\n"); rb->splash(HZ*2, "Failed to open descriptions."); rb->close(fIndex); return PLUGIN_ERROR; } /* seek to the right offset */ rb->lseek(fData, (off_t)reverse(word.offset), SEEK_SET); /* Read in the description */ rb->read_line(fData, description, display_columns * display_lines); /* And print it to debug. */ DEBUGF("Description: %s\n", description); /* get pointer to first char */ ptr = description; lines = 0; outputted = 0; len = rb->strlen(description); /* clear screen */ rb->lcd_clear_display(); /* for large screens display the searched word. */ if(display_lines > 4) { rb->lcd_puts(0, lines, searchword); lines++; } /* TODO: Scroll, or just stop when there are to much lines. */ while (1) { /* copy one lcd line */ rb->strncpy(output, ptr, display_columns); output[display_columns] = '\0'; /* typecast to kill a warning... */ if((int)rb->strlen(ptr) < display_columns) { rb->lcd_puts(0, lines, output); lines++; break; } /* get the last spacechar */ space = rb->strrchr(output, ' '); if (space != NULL) { *space = '\0'; next = (space - (char*)output) + 1; } else { next = display_columns; } /* put the line on screen */ rb->lcd_puts(0, lines, output); /* get output count */ outputted += rb->strlen(output); if (outputted < len) { /* set pointer to the next part */ ptr += next; lines++; } else { break; } } rb->lcd_update(); /* wait for keypress */ while(rb->button_get(true) != LP_QUIT) { /* do nothing */ /* maybe define some keys for navigation here someday. */ } rb->close(fIndex); rb->close(fData); return PLUGIN_OK; }