mirror of
https://github.com/Rockbox/rockbox.git
synced 2025-10-26 23:36:37 -04:00
8d5a6609a3
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8409 a1c6a512-1295-4272-9138-f99709370657
231 lines
6.8 KiB
C
231 lines
6.8 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $$
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*
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* Copyright (C) 2005 Ray Lambert
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "abrepeat.h"
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#ifdef AB_REPEAT_ENABLE
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unsigned int ab_A_marker IDATA_ATTR = AB_MARKER_NONE;
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unsigned int ab_B_marker IDATA_ATTR = AB_MARKER_NONE;
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#if (CONFIG_CODEC == SWCODEC)
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void ab_end_of_track_report(void)
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{
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if ( ab_A_marker_set() && ! ab_B_marker_set() )
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{
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ab_jump_to_A_marker();
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}
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}
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#else
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static int ab_audio_event_handler(unsigned short event, unsigned long data)
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{
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int rc = AUDIO_EVENT_RC_IGNORED;
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if ( ab_repeat_mode_enabled() )
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{
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switch(event)
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{
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case AUDIO_EVENT_POS_REPORT:
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{
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if ( ! (audio_status() & AUDIO_STATUS_PAUSE) &&
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ab_reached_B_marker(data) )
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{
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ab_jump_to_A_marker();
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rc = AUDIO_EVENT_RC_HANDLED;
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}
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break;
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}
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case AUDIO_EVENT_END_OF_TRACK:
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{
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if ( ab_A_marker_set() && ! ab_B_marker_set() )
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{
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ab_jump_to_A_marker();
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rc = AUDIO_EVENT_RC_HANDLED;
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}
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break;
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}
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}
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}
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return rc;
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}
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#endif
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void ab_repeat_init(void)
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{
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static bool ab_initialized = false;
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if ( ! ab_initialized )
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{
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ab_initialized = true;
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#if (CONFIG_CODEC != SWCODEC)
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audio_register_event_handler(ab_audio_event_handler,
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AUDIO_EVENT_POS_REPORT | AUDIO_EVENT_END_OF_TRACK );
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#endif
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}
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}
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unsigned int ab_get_A_marker(void)
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{
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return ab_A_marker;
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}
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unsigned int ab_get_B_marker(void)
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{
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return ab_B_marker;
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}
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/* determines if the given song position is earlier than the A mark;
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intended for use in handling the jump NEXT and PREV commands */
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bool ab_before_A_marker(unsigned int song_position)
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{
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return (ab_A_marker != AB_MARKER_NONE)
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&& (song_position < ab_A_marker);
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}
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/* determines if the given song position is later than the A mark;
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intended for use in handling the jump PREV command */
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bool ab_after_A_marker(unsigned int song_position)
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{
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/* following is the size of the virtual A marker; we pretend that the A marker
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is larger than a single instant in order to give the user time to hit PREV again
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to jump back to the start of the song; it should be large enough to allow a
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reasonable amount of time for the typical user to react */
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#define A_MARKER_VIRTUAL_SIZE 1000
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return (ab_A_marker != AB_MARKER_NONE)
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&& (song_position > (ab_A_marker+A_MARKER_VIRTUAL_SIZE));
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}
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void ab_jump_to_A_marker(void)
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{
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#if (CONFIG_CODEC == SWCODEC)
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audio_seamless_seek(ab_A_marker);
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#else
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bool paused = (audio_status() & AUDIO_STATUS_PAUSE) != 0;
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if ( ! paused )
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audio_pause();
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audio_ff_rewind(ab_A_marker);
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if ( ! paused )
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audio_resume();
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#endif
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}
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void ab_reset_markers(void)
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{
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ab_A_marker = AB_MARKER_NONE;
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ab_B_marker = AB_MARKER_NONE;
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}
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/* following is a fudge factor to help overcome the latency between
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the time the user hears the passage they want to mark and the time
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they actually press the button; the actual song position is adjusted
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by this fudge factor when setting a mark */
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#define EAR_TO_HAND_LATENCY_FUDGE 200
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void ab_set_A_marker(unsigned int song_position)
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{
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ab_A_marker = song_position;
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ab_A_marker = (ab_A_marker >= EAR_TO_HAND_LATENCY_FUDGE)
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? (ab_A_marker - EAR_TO_HAND_LATENCY_FUDGE) : 0;
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/* check if markers are out of order */
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if ( (ab_B_marker != AB_MARKER_NONE) && (ab_A_marker > ab_B_marker) )
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ab_B_marker = AB_MARKER_NONE;
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}
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void ab_set_B_marker(unsigned int song_position)
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{
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ab_B_marker = song_position;
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ab_B_marker = (ab_B_marker >= EAR_TO_HAND_LATENCY_FUDGE)
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? (ab_B_marker - EAR_TO_HAND_LATENCY_FUDGE) : 0;
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/* check if markers are out of order */
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if ( (ab_A_marker != AB_MARKER_NONE) && (ab_B_marker < ab_A_marker) )
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ab_A_marker = AB_MARKER_NONE;
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}
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#ifdef HAVE_LCD_BITMAP
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static inline int ab_calc_mark_x_pos(int mark, int capacity,
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int offset, int size)
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{
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int w = size - offset;
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return offset + ( (w * mark) / capacity );
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}
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static inline void ab_draw_veritcal_line_mark(struct screen * screen,
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int x, int y, int h)
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{
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screen->set_drawmode(DRMODE_COMPLEMENT);
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screen->vline(x, y, y+h-1);
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}
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#define DIRECTION_RIGHT 1
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#define DIRECTION_LEFT -1
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static inline void ab_draw_arrow_mark(struct screen * screen,
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int x, int y, int h, int direction)
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{
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/* draw lines in decreasing size until a height of zero is reached */
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screen->set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
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while( h > 0 )
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{
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screen->vline(x, y, y+h-1);
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h -= 2;
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y++;
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x += direction;
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screen->set_drawmode(DRMODE_COMPLEMENT);
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}
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}
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void ab_draw_markers(struct screen * screen, int capacity,
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int x, int y, int h)
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{
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int w = screen->width;
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/* if both markers are set, determine if they're far enough apart
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to draw arrows */
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if ( ab_A_marker_set() && ab_B_marker_set() )
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{
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int xa = ab_calc_mark_x_pos(ab_A_marker, capacity, x, w);
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int xb = ab_calc_mark_x_pos(ab_B_marker, capacity, x, w);
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int arrow_width = (h+1) / 2;
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if ( (xb-xa) < (arrow_width*2) )
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{
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ab_draw_veritcal_line_mark(screen, xa, y, h);
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ab_draw_veritcal_line_mark(screen, xb, y, h);
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}
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else
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{
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ab_draw_arrow_mark(screen, xa, y, h, DIRECTION_RIGHT);
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ab_draw_arrow_mark(screen, xb, y, h, DIRECTION_LEFT);
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}
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}
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else
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{
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if (ab_A_marker_set())
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{
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int xa = ab_calc_mark_x_pos(ab_A_marker, capacity, x, w);
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ab_draw_arrow_mark(screen, xa, y, h, DIRECTION_RIGHT);
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}
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if (ab_B_marker_set())
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{
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int xb = ab_calc_mark_x_pos(ab_B_marker, capacity, x, w);
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ab_draw_arrow_mark(screen, xb, y, h, DIRECTION_LEFT);
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}
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}
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}
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#endif /* HAVE_LCD_BITMAP */
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#endif /* AB_REPEAT_ENABLE */
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