summaryrefslogtreecommitdiffstats
path: root/apps/recorder/albumart.c
blob: 4cbabbc8ce70e9490b638058ff5694fe7dc8b3a6 (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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2007 Nicolas Pennequin
 *
 * 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 <stdio.h>
#include "string-extra.h"
#include "system.h"
#include "albumart.h"
#include "metadata.h"
#include "buffering.h"
#include "dircache.h"
#include "misc.h"
#include "filefuncs.h"
#include "settings.h"
#include "wps.h"

/* Define LOGF_ENABLE to enable logf output in this file */
/*#define LOGF_ENABLE*/
#include "logf.h"

#if defined(HAVE_JPEG) || defined(PLUGIN)
#define USE_JPEG_COVER
#endif

/* Strip filename from a full path
 *
 * buf      - buffer to extract directory to.
 * buf_size - size of buffer.
 * fullpath - fullpath to extract from.
 *
 * Split the directory part of the given fullpath and store it in buf
 *   (including last '/').
 * The function return parameter is a pointer to the filename
 *   inside the given fullpath.
 */
static char* strip_filename(char* buf, int buf_size, const char* fullpath)
{
    char* sep;
    int   len;

    if (!buf || buf_size <= 0 || !fullpath)
        return NULL;

    /* if 'fullpath' is only a filename return immediately */
    sep = strrchr(fullpath, '/');
    if (sep == NULL)
    {
        buf[0] = 0;
        return (char*)fullpath;
    }

    len = MIN(sep - fullpath + 1, buf_size - 1);
    strlcpy(buf, fullpath, len + 1);
    return (sep + 1);
}

/* Make sure part of path only contain chars valid for a FAT32 long name.
 * Double quotes are replaced with single quotes, other unsupported chars 
 * are replaced with an underscore.
 *
 * path   - path to modify.
 * offset - where in path to start checking.
 * count  - number of chars to check.
 */
static void fix_path_part(char* path, int offset, int count)
{
    static const char invalid_chars[] = "*/:<>?\\|";
    int i;
    
    path += offset;
    
    for (i = 0; i <= count; i++, path++)
    {
        if (*path == 0)
            return;
        if (*path == '"')
            *path = '\'';
        else if (strchr(invalid_chars, *path))
            *path = '_';
    }
}

#ifdef USE_JPEG_COVER
static const char * extensions[] = { "jpeg", "jpg", "bmp" };
static const unsigned char extension_lens[] = { 4, 3, 3 };
/* Try checking for several file extensions, return true if a file is found and
 * leaving the path modified to include the matching extension.
 */
static bool try_exts(char *path, int len)
{
    int i;
    for (i = 0; i < 3; i++)
    {
        if (extension_lens[i] + len > MAX_PATH)
            continue;
        strcpy(path + len, extensions[i]);
        if (file_exists(path))
            return true;
    }
    return false;
}
#define EXT
#else
#define EXT "bmp"
#define try_exts(path, len) file_exists(path)
#endif

/* Look for the first matching album art bitmap in the following list:
 *  ./<trackname><size>.{jpeg,jpg,bmp}
 *  ./<albumname><size>.{jpeg,jpg,bmp}
 *  ./cover<size>.bmp
 *  ../<albumname><size>.{jpeg,jpg,bmp}
 *  ../cover<size>.{jpeg,jpg,bmp}
 *  ROCKBOX_DIR/albumart/<artist>-<albumname><size>.{jpeg,jpg,bmp}
 * <size> is the value of the size_string parameter, <trackname> and
 * <albumname> are read from the ID3 metadata.
 * If a matching bitmap is found, its filename is stored in buf.
 * Return value is true if a bitmap was found, false otherwise.
 *
 * If the first symbol in size_string is a colon (e.g. ":100x100")
 * then the colon is skipped ("100x100" will be used) and the track
 * specific image (./<trackname><size>.bmp) is tried last instead of first.
 */
bool search_albumart_files(const struct mp3entry *id3, const char *size_string,
                           char *buf, int buflen)
{
    char path[MAX_PATH + 1];
    char dir[MAX_PATH + 1];
    bool found = false;
    int track_first = 1;
    int pass;
    const char *trackname;
    const char *artist;
    int dirlen;
    int albumlen;
    int pathlen;

    if (!id3 || !buf)
        return false;

    trackname = id3->path;

    if (strcmp(trackname, "No file!") == 0)
        return false;

    if (*size_string == ':')
    {
        size_string++;
        track_first = 0;
    }

    strip_filename(dir, sizeof(dir), trackname);
    dirlen = strlen(dir);
    albumlen = id3->album ? strlen(id3->album) : 0;

    for(pass = 0; pass < 2 - track_first; pass++)
    {
        if (track_first || pass)
        {
            /* the first file we look for is one specific to the
               current track */
            strip_extension(path, sizeof(path) - strlen(size_string) - 4,
                            trackname);
            strcat(path, size_string);
            strcat(path, "." EXT);
#ifdef USE_JPEG_COVER
            pathlen = strlen(path);
#endif
            found = try_exts(path, pathlen);
        }
        if (pass)
            break;
        if (!found && albumlen > 0)
        {
            /* if it doesn't exist,
            * we look for a file specific to the track's album name */
            pathlen = snprintf(path, sizeof(path),
                            "%s%s%s." EXT, dir, id3->album, size_string);
            fix_path_part(path, dirlen, albumlen);
            found = try_exts(path, pathlen);
        }

        if (!found)
        {
            /* if it still doesn't exist, we look for a generic file */
            pathlen = snprintf(path, sizeof(path),
                            "%scover%s." EXT, dir, size_string);
            found = try_exts(path, pathlen);
        }

#ifdef USE_JPEG_COVER
        if (!found && !*size_string)
        {
            snprintf (path, sizeof(path), "%sfolder.jpg", dir);
            found = file_exists(path);
        }
#endif

        artist = id3->albumartist != NULL ? id3->albumartist : id3->artist;

        if (!found && artist && id3->album)
        {
            /* look in the albumart subdir of .rockbox */
            pathlen = snprintf(path, sizeof(path),
                            ROCKBOX_DIR "/albumart/%s-%s%s." EXT,
                            artist,
                            id3->album,
                            size_string);
            fix_path_part(path, strlen(ROCKBOX_DIR "/albumart/"), MAX_PATH);
            found = try_exts(path, pathlen);
        }

        if (!found)
        {
            /* if it still doesn't exist,
            * we continue to search in the parent directory */
            strcpy(path, dir);
            path[dirlen - 1] = 0;
            strip_filename(dir, sizeof(dir), path);
            dirlen = strlen(dir);
        }

        /* only try parent if there is one */
        if (dirlen > 0)
        {
            if (!found && albumlen > 0)
            {
                /* we look in the parent directory
                * for a file specific to the track's album name */
                pathlen = snprintf(path, sizeof(path),
                                "%s%s%s." EXT, dir, id3->album, size_string);
                fix_path_part(path, dirlen, albumlen);
                found = try_exts(path, pathlen);
            }

            if (!found)
            {
                /* if it still doesn't exist, we look in the parent directory
                * for a generic file */
                pathlen = snprintf(path, sizeof(path),
                                "%scover%s." EXT, dir, size_string);
                found = try_exts(path, pathlen);
            }
        }
        if (found)
            break;
    }

    if (!found)
        return false;

    strlcpy(buf, path, buflen);
    logf("Album art found: %s", path);
    return true;
}

#ifndef PLUGIN
/* Look for albumart bitmap in the same dir as the track and in its parent dir.
 * Stores the found filename in the buf parameter.
 * Returns true if a bitmap was found, false otherwise */
bool find_albumart(const struct mp3entry *id3, char *buf, int buflen,
                    const struct dim *dim)
{
    if (!id3 || !buf)
        return false;

    char size_string[9];
    logf("Looking for album art for %s", id3->path);

    /* Write the size string, e.g. ".100x100". */
    snprintf(size_string, sizeof(size_string), ".%dx%d",
              dim->width, dim->height);

    /* First we look for a bitmap of the right size */
    if (search_albumart_files(id3, size_string, buf, buflen))
        return true;

    /* Then we look for generic bitmaps */
    *size_string = 0;
    return search_albumart_files(id3, size_string, buf, buflen);
}

/* Draw the album art bitmap from the given handle ID onto the given WPS.
   Call with clear = true to clear the bitmap instead of drawing it. */
void draw_album_art(struct gui_wps *gwps, int handle_id, bool clear)
{
    if (!gwps || !gwps->data || !gwps->display || handle_id < 0)
        return;

    struct wps_data *data = gwps->data;
    struct skin_albumart *aa = SKINOFFSETTOPTR(get_skin_buffer(data), data->albumart);

    if (!aa)
        return;
        
    struct bitmap *bmp;
    if (bufgetdata(handle_id, 0, (void *)&bmp) <= 0)
        return;

    short x = aa->x;
    short y = aa->y;
    short width = bmp->width;
    short height = bmp->height;

    if (aa->width > 0)
    {
        /* Crop if the bitmap is too wide */
        width = MIN(bmp->width, aa->width);

        /* Align */
        if (aa->xalign & WPS_ALBUMART_ALIGN_RIGHT)
            x += aa->width - width;
        else if (aa->xalign & WPS_ALBUMART_ALIGN_CENTER)
            x += (aa->width - width) / 2;
    }

    if (aa->height > 0)
    {
        /* Crop if the bitmap is too high */
        height = MIN(bmp->height, aa->height);

        /* Align */
        if (aa->yalign & WPS_ALBUMART_ALIGN_BOTTOM)
            y += aa->height - height;
        else if (aa->yalign & WPS_ALBUMART_ALIGN_CENTER)
            y += (aa->height - height) / 2;
    }

    if (!clear)
    {
        /* Draw the bitmap */
        gwps->display->bitmap_part((fb_data*)bmp->data, 0, 0, 
                                    STRIDE(gwps->display->screen_type, 
                                        bmp->width, bmp->height),
                                   x, y, width, height);
#ifdef HAVE_LCD_INVERT
        if (global_settings.invert) {
            gwps->display->set_drawmode(DRMODE_COMPLEMENT);
            gwps->display->fillrect(x, y, width, height);
            gwps->display->set_drawmode(DRMODE_SOLID);
        }
#endif
    }
    else
    {
        /* Clear the bitmap */
        gwps->display->set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
        gwps->display->fillrect(x, y, width, height);
        gwps->display->set_drawmode(DRMODE_SOLID);
    }
}

#endif /* PLUGIN */