summaryrefslogtreecommitdiffstats
path: root/apps/radio/radioart.c
blob: 23fb7a33d516c2a666f04e19fcaff8efba3ac4bf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
/***************************************************************************
 *             __________               __   ___.
 *   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 "settings.h"
#include "radio.h"
#include "buffering.h"
#include "file.h"
#include "kernel.h"
#include "string-extra.h"
#include "filefuncs.h"

#define MAX_RADIOART_IMAGES 10
struct radioart {
    int handle;
    long last_tick;
    struct dim dim;
    char name[MAX_FMPRESET_LEN+1];
};

static struct radioart radioart[MAX_RADIOART_IMAGES];
#ifdef HAVE_RECORDING
static bool allow_buffer_access = true; /* If we are recording dont touch the buffers! */
#endif
static int find_oldest_image(void)
{
    int i;
    long oldest_tick = radioart[0].last_tick;
    int oldest_idx = 0;
    for(i=1;i<MAX_RADIOART_IMAGES;i++)
    {
        if (radioart[i].last_tick < oldest_tick)
        {
            oldest_tick = radioart[i].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];
#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;
    ra->handle = bufopen(path, 0, TYPE_BITMAP, &ra->dim);
    if (ra->handle == ERR_BUFFER_FULL)
    {
        int i = find_oldest_image();
        bufclose(i);
        ra->handle = bufopen(path, 0, TYPE_BITMAP, &ra->dim);
    }
#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 i, free_idx = -1;
    const char* preset_name;
    if (radio_scan_mode() || preset < 0)
        return -1;
#ifdef HAVE_RECORDING
    if (!allow_buffer_access)
        return -1;
#endif
    preset_name = radio_get_preset_name(preset);
    for(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();
        bufclose(radioart[i].handle);
        return load_radioart_image(&radioart[i],
                                   preset_name, requested_dim);        
    }
        
    return -1;
}
static void playback_restarting_handler(void *data)
{
    (void)data;
    int i;
    for(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';
    }
}
#ifdef HAVE_RECORDING
static void recording_started_handler(void *data)
{
    (void)data;
    allow_buffer_access = false;
    playback_restarting_handler(NULL);
}
static void recording_stopped_handler(void *data)
{
    (void)data;
    allow_buffer_access = true;
}
#endif

void radioart_init(bool entering_screen)
{
    int i;
    if (entering_screen)
    {
        for(i=0;i<MAX_RADIOART_IMAGES;i++)
        {
            radioart[i].handle = -1;
            radioart[i].name[0] = '\0';
        }
        add_event(PLAYBACK_EVENT_START_PLAYBACK, true, playback_restarting_handler);
    }
    else
    {
#if defined(HAVE_RECORDING)
        add_event(RECORDING_EVENT_START, false, recording_started_handler);
        add_event(RECORDING_EVENT_STOP, false, recording_stopped_handler);
#endif
    }
}