/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2005 Ray Lambert * * 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 "abrepeat.h" #ifdef AB_REPEAT_ENABLE unsigned int ab_A_marker IDATA_ATTR = AB_MARKER_NONE; unsigned int ab_B_marker IDATA_ATTR = AB_MARKER_NONE; #if (CONFIG_CODEC == SWCODEC) void ab_end_of_track_report(void) { if ( ab_A_marker_set() && ! ab_B_marker_set() ) { ab_jump_to_A_marker(); } } #else static int ab_audio_event_handler(unsigned short event, unsigned long data) { int rc = AUDIO_EVENT_RC_IGNORED; if ( ab_repeat_mode_enabled() ) { switch(event) { case AUDIO_EVENT_POS_REPORT: { if ( ! (audio_status() & AUDIO_STATUS_PAUSE) && ab_reached_B_marker(data) ) { ab_jump_to_A_marker(); rc = AUDIO_EVENT_RC_HANDLED; } break; } case AUDIO_EVENT_END_OF_TRACK: { if ( ab_A_marker_set() && ! ab_B_marker_set() ) { ab_jump_to_A_marker(); rc = AUDIO_EVENT_RC_HANDLED; } break; } } } return rc; } #endif void ab_repeat_init(void) { static bool ab_initialized = false; if ( ! ab_initialized ) { ab_initialized = true; #if (CONFIG_CODEC != SWCODEC) audio_register_event_handler(ab_audio_event_handler, AUDIO_EVENT_POS_REPORT | AUDIO_EVENT_END_OF_TRACK ); #endif } } #if 0 /* Currently unused */ unsigned int ab_get_A_marker(void) { return ab_A_marker; } unsigned int ab_get_B_marker(void) { return ab_B_marker; } #endif /* if 0 */ /* determines if the given song position is earlier than the A mark; intended for use in handling the jump NEXT and PREV commands */ bool ab_before_A_marker(unsigned int song_position) { return (ab_A_marker != AB_MARKER_NONE) && (song_position < ab_A_marker); } /* determines if the given song position is later than the A mark; intended for use in handling the jump PREV command */ bool ab_after_A_marker(unsigned int song_position) { /* following is the size of the virtual A marker; we pretend that the A marker is larger than a single instant in order to give the user time to hit PREV again to jump back to the start of the song; it should be large enough to allow a reasonable amount of time for the typical user to react */ #define A_MARKER_VIRTUAL_SIZE 1000 return (ab_A_marker != AB_MARKER_NONE) && (song_position > (ab_A_marker+A_MARKER_VIRTUAL_SIZE)); } void ab_jump_to_A_marker(void) { #if (CONFIG_CODEC != SWCODEC) bool paused = (audio_status() & AUDIO_STATUS_PAUSE) != 0; if ( ! paused ) audio_pause(); #endif audio_ff_rewind(ab_A_marker); #if (CONFIG_CODEC != SWCODEC) if ( ! paused ) audio_resume(); #endif } void ab_reset_markers(void) { ab_A_marker = AB_MARKER_NONE; ab_B_marker = AB_MARKER_NONE; } /* following is a fudge factor to help overcome the latency between the time the user hears the passage they want to mark and the time they actually press the button; the actual song position is adjusted by this fudge factor when setting a mark */ #define EAR_TO_HAND_LATENCY_FUDGE 200 void ab_set_A_marker(unsigned int song_position) { ab_A_marker = song_position; ab_A_marker = (ab_A_marker >= EAR_TO_HAND_LATENCY_FUDGE) ? (ab_A_marker - EAR_TO_HAND_LATENCY_FUDGE) : 0; /* check if markers are out of order */ if ( (ab_B_marker != AB_MARKER_NONE) && (ab_A_marker > ab_B_marker) ) ab_B_marker = AB_MARKER_NONE; } void ab_set_B_marker(unsigned int song_position) { ab_B_marker = song_position; ab_B_marker = (ab_B_marker >= EAR_TO_HAND_LATENCY_FUDGE) ? (ab_B_marker - EAR_TO_HAND_LATENCY_FUDGE) : 0; /* check if markers are out of order */ if ( (ab_A_marker != AB_MARKER_NONE) && (ab_B_marker < ab_A_marker) ) ab_A_marker = AB_MARKER_NONE; } #ifdef HAVE_LCD_BITMAP static inline int ab_calc_mark_x_pos(int mark, int capacity, int offset, int size) { int w = size - offset; return offset + ( (w * mark) / capacity ); } static inline void ab_draw_vertical_line_mark(struct screen * screen, int x, int y, int h) { screen->set_drawmode(DRMODE_COMPLEMENT); screen->vline(x, y, y+h-1); } #define DIRECTION_RIGHT 1 #define DIRECTION_LEFT -1 static inline void ab_draw_arrow_mark(struct screen * screen, int x, int y, int h, int direction) { /* draw lines in decreasing size until a height of zero is reached */ screen->set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID); while( h > 0 ) { screen->vline(x, y, y+h-1); h -= 2; y++; x += direction; screen->set_drawmode(DRMODE_COMPLEMENT); } } void ab_draw_markers(struct screen * screen, int capacity, int x0, int x1, int y, int h) { /* if both markers are set, determine if they're far enough apart to draw arrows */ if ( ab_A_marker_set() && ab_B_marker_set() ) { int xa = ab_calc_mark_x_pos(ab_A_marker, capacity, x0, x1); int xb = ab_calc_mark_x_pos(ab_B_marker, capacity, x0, x1); int arrow_width = (h+1) / 2; if ( (xb-xa) < (arrow_width*2) ) { ab_draw_vertical_line_mark(screen, xa, y, h); ab_draw_vertical_line_mark(screen, xb, y, h); } else { ab_draw_arrow_mark(screen, xa, y, h, DIRECTION_RIGHT); ab_draw_arrow_mark(screen, xb, y, h, DIRECTION_LEFT); } } else { if (ab_A_marker_set()) { int xa = ab_calc_mark_x_pos(ab_A_marker, capacity, x0, x1); ab_draw_arrow_mark(screen, xa, y, h, DIRECTION_RIGHT); } if (ab_B_marker_set()) { int xb = ab_calc_mark_x_pos(ab_B_marker, capacity, x0, x1); ab_draw_arrow_mark(screen, xb, y, h, DIRECTION_LEFT); } } } #endif /* HAVE_LCD_BITMAP */ #endif /* AB_REPEAT_ENABLE */