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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2010 Jonathan Gordon
*
* 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 "config.h"
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include "system.h"
#include "rbpaths.h"
#include "radio.h"
#include "buffering.h"
#include "playback.h" /* bufopen_user_data */
#include "file.h"
#include "kernel.h"
#include "string-extra.h"
#include "pathfuncs.h"
#include "core_alloc.h"
#include "splash.h"
#define MAX_RADIOART_IMAGES 10
struct radioart {
int handle;
long last_tick;
struct dim dim;
char name[MAX_FMPRESET_LEN+1];
};
static char* buf;
static struct radioart radioart[MAX_RADIOART_IMAGES];
static int find_oldest_image_index(void)
{
unsigned i;
long oldest_tick = current_tick;
int oldest_idx = -1;
for(i = 0; i < ARRAYLEN(radioart); i++)
{
struct radioart *ra = &radioart[i];
/* last_tick is only valid if it's actually loaded, i.e. valid handle */
if (ra->handle >= 0 && TIME_BEFORE(ra->last_tick, oldest_tick))
{
oldest_tick = ra->last_tick;
oldest_idx = i;
}
}
return oldest_idx;
}
static int load_radioart_image(struct radioart *ra, const char* preset_name,
struct dim *dim)
{
char path[MAX_PATH];
struct bufopen_bitmap_data user_data;
#ifndef HAVE_NOISY_IDLE_MODE
cpu_idle_mode(false);
#endif
snprintf(path, sizeof(path), FMPRESET_PATH "/%s.bmp",preset_name);
if (!file_exists(path))
snprintf(path, sizeof(path), FMPRESET_PATH "/%s.jpg",preset_name);
if (!file_exists(path))
{
#ifndef HAVE_NOISY_IDLE_MODE
cpu_idle_mode(true);
#endif
return -1;
}
strlcpy(ra->name, preset_name, MAX_FMPRESET_LEN+1);
ra->dim.height = dim->height;
ra->dim.width = dim->width;
ra->last_tick = current_tick;
user_data.embedded_albumart = NULL;
user_data.dim = &ra->dim;
ra->handle = bufopen(path, 0, TYPE_BITMAP, &user_data);
if (ra->handle == ERR_BUFFER_FULL || ra->handle == ERR_BITMAP_TOO_LARGE)
{
int i = find_oldest_image_index();
if (i != -1)
{
bufclose(radioart[i].handle);
ra->handle = bufopen(path, 0, TYPE_BITMAP, &user_data);
}
}
#ifndef HAVE_NOISY_IDLE_MODE
cpu_idle_mode(true);
#endif
return ra->handle;
}
int radio_get_art_hid(struct dim *requested_dim)
{
int preset = radio_current_preset();
int free_idx = -1;
const char* preset_name;
if (!buf || radio_scan_mode() || preset < 0)
return -1;
preset_name = radio_get_preset_name(preset);
for (int i=0; i<MAX_RADIOART_IMAGES; i++)
{
if (radioart[i].handle < 0)
{
free_idx = i;
}
else if (!strcmp(radioart[i].name, preset_name) &&
radioart[i].dim.width == requested_dim->width &&
radioart[i].dim.height == requested_dim->height)
{
radioart[i].last_tick = current_tick;
return radioart[i].handle;
}
}
if (free_idx >= 0)
{
return load_radioart_image(&radioart[free_idx],
preset_name, requested_dim);
}
else
{
int i = find_oldest_image_index();
if (i != -1)
{
bufclose(radioart[i].handle);
return load_radioart_image(&radioart[i],
preset_name, requested_dim);
}
}
return -1;
}
static void buffer_reset_handler(unsigned short id, void *data, void *user_data)
{
buf = NULL;
for(int i=0;i<MAX_RADIOART_IMAGES;i++)
{
if (radioart[i].handle >= 0)
bufclose(radioart[i].handle);
radioart[i].handle = -1;
radioart[i].name[0] = '\0';
}
(void)id;
(void)data;
(void)user_data;
}
static int shrink_callback(int handle, unsigned hints, void* start, size_t old_size)
{
(void)start;
(void)old_size;
ssize_t old_size_s = old_size;
size_t size_hint = (hints & BUFLIB_SHRINK_SIZE_MASK);
ssize_t wanted_size = old_size_s - size_hint;
if (wanted_size <= 0)
{
core_free(handle);
buffering_reset(NULL, 0);
}
else
{
if (hints & BUFLIB_SHRINK_POS_FRONT)
start += size_hint;
buffering_reset(start, wanted_size);
core_shrink(handle, start, wanted_size);
buf = start;
/* one-shot */
add_event_ex(BUFFER_EVENT_BUFFER_RESET, true, buffer_reset_handler, NULL);
}
return BUFLIB_CB_OK;
}
static struct buflib_callbacks radioart_ops = {
.shrink_callback = shrink_callback,
};
void radioart_init(bool entering_screen)
{
if (entering_screen)
{
/* grab control over buffering */
size_t bufsize;
int handle = core_alloc_maximum("radioart", &bufsize, &radioart_ops);
if (handle <0)
{
splash(HZ, "Radioart Failed - OOM");
return;
}
buffering_reset(core_get_data(handle), bufsize);
buf = core_get_data(handle);
/* one-shot */
add_event_ex(BUFFER_EVENT_BUFFER_RESET, true, buffer_reset_handler, NULL);
}
else /* init at startup */
{
for(int i=0;i<MAX_RADIOART_IMAGES;i++)
{
radioart[i].handle = -1;
radioart[i].name[0] = '\0';
}
}
}
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