0ad617cbf0
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7380 a1c6a512-1295-4272-9138-f99709370657
251 lines
7.3 KiB
C
251 lines
7.3 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $$
|
|
*
|
|
* Copyright (C) 2005 Ray Lambert
|
|
*
|
|
* All files in this archive are subject to the GNU General Public License.
|
|
* See the file COPYING in the source tree root for full license agreement.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#include "abrepeat.h"
|
|
|
|
#include "settings.h"
|
|
#include "audio.h"
|
|
#include "kernel.h"
|
|
|
|
#ifdef HAVE_LCD_BITMAP
|
|
#include "lcd.h"
|
|
#endif
|
|
|
|
#ifdef AB_REPEAT_ENABLE
|
|
|
|
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;
|
|
}
|
|
|
|
void ab_repeat_init(void)
|
|
{
|
|
static bool ab_initialized = false;
|
|
if ( ! ab_initialized )
|
|
{
|
|
ab_initialized = true;
|
|
audio_register_event_handler(ab_audio_event_handler,
|
|
AUDIO_EVENT_POS_REPORT | AUDIO_EVENT_END_OF_TRACK );
|
|
}
|
|
}
|
|
|
|
static unsigned int ab_A_marker = AB_MARKER_NONE;
|
|
static unsigned int ab_B_marker = AB_MARKER_NONE;
|
|
|
|
bool ab_repeat_mode_enabled(void)
|
|
{
|
|
extern struct user_settings global_settings;
|
|
return global_settings.repeat_mode == REPEAT_AB;
|
|
}
|
|
|
|
bool ab_A_marker_set(void)
|
|
{
|
|
return ab_A_marker != AB_MARKER_NONE;
|
|
}
|
|
|
|
bool ab_B_marker_set(void)
|
|
{
|
|
return ab_B_marker != AB_MARKER_NONE;
|
|
}
|
|
|
|
unsigned int ab_get_A_marker(void)
|
|
{
|
|
return ab_A_marker;
|
|
}
|
|
|
|
unsigned int ab_get_B_marker(void)
|
|
{
|
|
return ab_B_marker;
|
|
}
|
|
|
|
bool ab_reached_B_marker(unsigned int song_position)
|
|
{
|
|
/* following is the size of the window in which we'll detect that the B marker
|
|
was hit; it must be larger than the frequency (in milliseconds) at which this
|
|
function is called otherwise detection of the B marker will be unreliable;
|
|
we assume that this function will be called on each system tick and derive
|
|
the window size from this with a generous margin of error (note: the number
|
|
of ticks per second is given by HZ) */
|
|
#define B_MARKER_DETECT_WINDOW ((1000/HZ)*10)
|
|
if (ab_B_marker != AB_MARKER_NONE)
|
|
{
|
|
if ( (song_position >= ab_B_marker)
|
|
&& (song_position <= (ab_B_marker+B_MARKER_DETECT_WINDOW)) )
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/* 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)
|
|
{
|
|
bool paused = (audio_status() & AUDIO_STATUS_PAUSE) != 0;
|
|
if ( ! paused )
|
|
audio_pause();
|
|
audio_ff_rewind(ab_A_marker);
|
|
if ( ! paused )
|
|
audio_resume();
|
|
}
|
|
|
|
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 int ab_calc_mark_x_pos(int mark, int capacity, int offset, int size)
|
|
{
|
|
int w = size - offset;
|
|
return offset + ( (w * mark) / capacity );
|
|
}
|
|
|
|
static void ab_draw_veritcal_line_mark(int x, int y, int h)
|
|
{
|
|
lcd_set_drawmode(DRMODE_COMPLEMENT);
|
|
lcd_vline(x, y, y+h-1);
|
|
}
|
|
|
|
#define DIRECTION_RIGHT 1
|
|
#define DIRECTION_LEFT -1
|
|
|
|
static void ab_draw_arrow_mark(int x, int y, int h, int direction)
|
|
{
|
|
/* draw lines in decreasing size until a height of zero is reached */
|
|
lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
|
|
while( h > 0 )
|
|
{
|
|
lcd_vline(x, y, y+h-1);
|
|
h -= 2;
|
|
y++;
|
|
x += direction;
|
|
lcd_set_drawmode(DRMODE_COMPLEMENT);
|
|
}
|
|
}
|
|
|
|
void ab_draw_markers(int capacity, int x, int y, int w, 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, x, w);
|
|
int xb = ab_calc_mark_x_pos(ab_B_marker, capacity, x, w);
|
|
int arrow_width = (h+1) / 2;
|
|
if ( (xb-xa) < (arrow_width*2) )
|
|
{
|
|
ab_draw_veritcal_line_mark(xa, y, h);
|
|
ab_draw_veritcal_line_mark(xb, y, h);
|
|
}
|
|
else
|
|
{
|
|
ab_draw_arrow_mark(xa, y, h, DIRECTION_RIGHT);
|
|
ab_draw_arrow_mark(xb, y, h, DIRECTION_LEFT);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (ab_A_marker_set())
|
|
{
|
|
int xa = ab_calc_mark_x_pos(ab_A_marker, capacity, x, w);
|
|
ab_draw_arrow_mark(xa, y, h, DIRECTION_RIGHT);
|
|
}
|
|
if (ab_B_marker_set())
|
|
{
|
|
int xb = ab_calc_mark_x_pos(ab_B_marker, capacity, x, w);
|
|
ab_draw_arrow_mark(xb, y, h, DIRECTION_LEFT);
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif /* HAVE_LCD_BITMAP */
|
|
|
|
#endif /* AB_REPEAT_ENABLE */
|