Mercurial > hg > sidinfo
annotate sidlib.c @ 162:7359170fbb7f
Clarify some comments.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Fri, 16 Feb 2018 21:24:28 +0200 |
parents | 27365eae837b |
children | 179ffe97599c |
rev | line source |
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70
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Split some functionality into sidlib.[ch].
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1 /* |
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2 * SIDInfoLib - Way too simplistic PSID/RSID file library |
93 | 3 * Written by Matti 'ccr' Hämäläinen <ccr@tnsp.org> |
131 | 4 * (C) Copyright 2014-2017 Tecnic Software productions (TNSP) |
70
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5 */ |
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6 #include "sidlib.h" |
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7 #include "th_endian.h" |
85
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8 #include "th_string.h" |
70
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9 |
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10 |
103
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11 #define SIDLIB_DB_MAGIC "SIDLibDB" |
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12 #define SIDLIB_DB_VERSION 0x0100 |
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13 |
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14 |
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15 typedef struct |
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16 { |
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17 char magic[8]; // File magic ID |
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18 uint16_t version; // Version |
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19 uint32_t nnodes; // Number of song nodes |
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20 // struct { |
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21 // th_md5hash_t hash; // Hash for this SID file |
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22 // uint16_t nlengths; // Number of song (lengths) |
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23 // uint16_t length[nlengths]; // Length in seconds |
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24 // } * nnodes; |
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25 th_md5hash_t hash; |
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26 } PSIDLibHdr; |
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27 |
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28 |
128
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29 BOOL si_fread_str(th_ioctx *ctx, char **str, const size_t len) |
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30 { |
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31 char *tmp = th_malloc(len + 1); |
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32 if (tmp == NULL) |
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33 goto err; |
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34 |
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35 if (!thfread_str(ctx, tmp, len)) |
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36 goto err; |
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37 |
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38 tmp[len] = 0; |
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39 |
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40 *str = tmp; |
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41 |
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42 return TRUE; |
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43 |
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44 err: |
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45 th_free(tmp); |
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46 return FALSE; |
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47 } |
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48 |
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49 |
126
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50 int si_read_sid_file(th_ioctx *ctx, PSIDHeader **ppsid) |
70
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51 { |
126
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52 PSIDHeader *psid = NULL; |
70
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53 th_md5state_t state; |
85
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54 uint8_t tmp8, *data = NULL; |
70
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55 int index, ret = -1; |
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56 size_t read; |
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57 BOOL first; |
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58 |
85
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59 if ((data = (uint8_t *) th_malloc(PSID_BUFFER_SIZE)) == NULL) |
70
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60 { |
85
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61 th_io_error(ctx, THERR_MALLOC, |
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62 "Error allocating temporary data buffer of %d bytes.\n", |
77 | 63 PSID_BUFFER_SIZE); |
70
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64 goto error; |
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65 } |
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66 |
126
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67 if ((psid = *ppsid = th_malloc0(sizeof(PSIDHeader))) == NULL) |
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68 { |
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69 th_io_error(ctx, THERR_MALLOC, |
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70 "Error PSID context struct.\n"); |
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71 goto error; |
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72 } |
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73 |
70
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74 // Read PSID header in |
85
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75 if (!thfread_str(ctx, (uint8_t *) psid->magic, PSID_MAGIC_LEN) || |
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76 !thfread_be16(ctx, &psid->version) || |
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77 !thfread_be16(ctx, &psid->dataOffset) || |
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78 !thfread_be16(ctx, &psid->loadAddress) || |
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79 !thfread_be16(ctx, &psid->initAddress) || |
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80 !thfread_be16(ctx, &psid->playAddress) || |
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81 !thfread_be16(ctx, &psid->nSongs) || |
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82 !thfread_be16(ctx, &psid->startSong) || |
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83 !thfread_be32(ctx, &psid->speed)) |
70
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84 { |
104
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85 th_io_error(ctx, ctx->status, |
85
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86 "Could not read PSID/RSID header: %s.\n", |
104
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87 th_error_str(ctx->status)); |
70
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88 goto error; |
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89 } |
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90 |
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91 psid->magic[PSID_MAGIC_LEN] = 0; |
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92 |
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93 if ((psid->magic[0] != 'R' && psid->magic[0] != 'P') || |
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94 psid->magic[1] != 'S' || psid->magic[2] != 'I' || psid->magic[3] != 'D' || |
133
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95 psid->version < 1 || psid->version > 4) |
70
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96 { |
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97 th_io_error(ctx, THERR_NOT_SUPPORTED, |
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98 "Not a supported PSID or RSID file.\n"); |
70
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99 goto error; |
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100 } |
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101 |
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102 psid->isRSID = psid->magic[0] == 'R'; |
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103 |
128
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126
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104 if (!si_fread_str(ctx, &psid->sidName, PSID_STR_LEN) || |
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126
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105 !si_fread_str(ctx, &psid->sidAuthor, PSID_STR_LEN) || |
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126
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106 !si_fread_str(ctx, &psid->sidCopyright, PSID_STR_LEN)) |
70
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107 { |
104
09ca9d9a8710
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103
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108 th_io_error(ctx, ctx->status, |
85
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109 "Error reading SID file header: %s.\n", |
104
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110 th_error_str(ctx->status)); |
70
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111 goto error; |
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112 } |
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113 |
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114 // Check if we need to load PSIDv2NG header ... |
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115 if (psid->version >= 2) |
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116 { |
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117 // Yes, we need to |
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118 if (!thfread_be16(ctx, &psid->flags) || |
98
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Match with th-libs API change.
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95
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119 !thfread_u8(ctx, &psid->startPage) || |
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Match with th-libs API change.
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95
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120 !thfread_u8(ctx, &psid->pageLength) || |
133
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changeset
|
121 !thfread_u8(ctx, &psid->sid2Addr) || |
9cfa0553e7f9
Add support for reading PSID/RSID v4 in sidlib.
Matti Hamalainen <ccr@tnsp.org>
parents:
132
diff
changeset
|
122 !thfread_u8(ctx, &psid->sid3Addr)) |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
123 { |
104
09ca9d9a8710
Change to match changed th_ioctx API.
Matti Hamalainen <ccr@tnsp.org>
parents:
103
diff
changeset
|
124 th_io_error(ctx, ctx->status, |
85
4c0ecb078591
Rename various variables and functions and change relevant places to use the
Matti Hamalainen <ccr@tnsp.org>
parents:
77
diff
changeset
|
125 "Error reading PSID/RSID v2+ extra header data: %s.\n", |
104
09ca9d9a8710
Change to match changed th_ioctx API.
Matti Hamalainen <ccr@tnsp.org>
parents:
103
diff
changeset
|
126 th_error_str(ctx->status)); |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
127 goto error; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
128 } |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
129 } |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
130 |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
131 // Initialize MD5-hash calculation |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
132 th_md5_init(&state); |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
133 |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
134 // Process actual data |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
135 psid->dataSize = 0; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
136 first = TRUE; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
137 do |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
138 { |
85
4c0ecb078591
Rename various variables and functions and change relevant places to use the
Matti Hamalainen <ccr@tnsp.org>
parents:
77
diff
changeset
|
139 read = thfread(data, sizeof(uint8_t), PSID_BUFFER_SIZE, ctx); |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
140 psid->dataSize += read; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
141 |
162 | 142 // If load address is 0 in header and we have the first block, grab it |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
143 if (first && psid->loadAddress == 0) |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
144 { |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
145 if (read < 4) |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
146 { |
85
4c0ecb078591
Rename various variables and functions and change relevant places to use the
Matti Hamalainen <ccr@tnsp.org>
parents:
77
diff
changeset
|
147 th_io_error(ctx, THERR_FREAD, |
4c0ecb078591
Rename various variables and functions and change relevant places to use the
Matti Hamalainen <ccr@tnsp.org>
parents:
77
diff
changeset
|
148 "Error reading song data, unexpectedly small file.\n"); |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
149 goto error; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
150 } |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
151 |
162 | 152 // Grab the load address |
85
4c0ecb078591
Rename various variables and functions and change relevant places to use the
Matti Hamalainen <ccr@tnsp.org>
parents:
77
diff
changeset
|
153 psid->loadAddress = TH_LE16_TO_NATIVE(*(uint16_t *) data); |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
154 |
162 | 155 // .. do not include the load address to the hash |
85
4c0ecb078591
Rename various variables and functions and change relevant places to use the
Matti Hamalainen <ccr@tnsp.org>
parents:
77
diff
changeset
|
156 th_md5_append(&state, &data[2], read - 2); |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
157 first = FALSE; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
158 } |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
159 else |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
160 if (read > 0) |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
161 { |
162 | 162 // Append data "as is" |
85
4c0ecb078591
Rename various variables and functions and change relevant places to use the
Matti Hamalainen <ccr@tnsp.org>
parents:
77
diff
changeset
|
163 th_md5_append(&state, data, read); |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
164 } |
85
4c0ecb078591
Rename various variables and functions and change relevant places to use the
Matti Hamalainen <ccr@tnsp.org>
parents:
77
diff
changeset
|
165 } while (read > 0 && !thfeof(ctx)); |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
166 |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
167 // Append header data to hash |
95
833bb78eb658
Use th_md5_append_le*() functions instead.
Matti Hamalainen <ccr@tnsp.org>
parents:
93
diff
changeset
|
168 th_md5_append_le16(&state, psid->initAddress); |
833bb78eb658
Use th_md5_append_le*() functions instead.
Matti Hamalainen <ccr@tnsp.org>
parents:
93
diff
changeset
|
169 th_md5_append_le16(&state, psid->playAddress); |
833bb78eb658
Use th_md5_append_le*() functions instead.
Matti Hamalainen <ccr@tnsp.org>
parents:
93
diff
changeset
|
170 th_md5_append_le16(&state, psid->nSongs); |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
171 |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
172 // Append song speed data to hash |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
173 tmp8 = psid->isRSID ? 60 : 0; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
174 for (index = 0; index < psid->nSongs && index < 32; index++) |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
175 { |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
176 if (psid->isRSID) |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
177 tmp8 = 60; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
178 else |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
179 tmp8 = (psid->speed & (1 << index)) ? 60 : 0; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
180 |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
181 th_md5_append(&state, &tmp8, sizeof(tmp8)); |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
182 } |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
183 |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
184 // Rest of songs (more than 32) |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
185 for (index = 32; index < psid->nSongs; index++) |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
186 th_md5_append(&state, &tmp8, sizeof(tmp8)); |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
187 |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
188 // PSIDv2NG specific |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
189 if (psid->version >= 2) |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
190 { |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
191 // REFER TO SIDPLAY HEADERS FOR MORE INFORMATION |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
192 tmp8 = (psid->flags >> 2) & 3; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
193 if (tmp8 == 2) |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
194 th_md5_append(&state, &tmp8, sizeof(tmp8)); |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
195 } |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
196 |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
197 // Calculate the hash |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
198 th_md5_finish(&state, psid->hash); |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
199 ret = 0; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
200 |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
201 error: |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
202 // Free buffer |
85
4c0ecb078591
Rename various variables and functions and change relevant places to use the
Matti Hamalainen <ccr@tnsp.org>
parents:
77
diff
changeset
|
203 th_free(data); |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
204 return ret; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
205 } |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
206 |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
207 |
126
c1462b7880e8
Make si_read_sid_file() to allocate the PSIDHeader struct itself, adjust
Matti Hamalainen <ccr@tnsp.org>
parents:
104
diff
changeset
|
208 void si_free_sid_file(PSIDHeader *psid) |
c1462b7880e8
Make si_read_sid_file() to allocate the PSIDHeader struct itself, adjust
Matti Hamalainen <ccr@tnsp.org>
parents:
104
diff
changeset
|
209 { |
c1462b7880e8
Make si_read_sid_file() to allocate the PSIDHeader struct itself, adjust
Matti Hamalainen <ccr@tnsp.org>
parents:
104
diff
changeset
|
210 if (psid != NULL) |
c1462b7880e8
Make si_read_sid_file() to allocate the PSIDHeader struct itself, adjust
Matti Hamalainen <ccr@tnsp.org>
parents:
104
diff
changeset
|
211 { |
c1462b7880e8
Make si_read_sid_file() to allocate the PSIDHeader struct itself, adjust
Matti Hamalainen <ccr@tnsp.org>
parents:
104
diff
changeset
|
212 th_free(psid->sidName); |
c1462b7880e8
Make si_read_sid_file() to allocate the PSIDHeader struct itself, adjust
Matti Hamalainen <ccr@tnsp.org>
parents:
104
diff
changeset
|
213 th_free(psid->sidAuthor); |
c1462b7880e8
Make si_read_sid_file() to allocate the PSIDHeader struct itself, adjust
Matti Hamalainen <ccr@tnsp.org>
parents:
104
diff
changeset
|
214 th_free(psid->sidCopyright); |
c1462b7880e8
Make si_read_sid_file() to allocate the PSIDHeader struct itself, adjust
Matti Hamalainen <ccr@tnsp.org>
parents:
104
diff
changeset
|
215 } |
c1462b7880e8
Make si_read_sid_file() to allocate the PSIDHeader struct itself, adjust
Matti Hamalainen <ccr@tnsp.org>
parents:
104
diff
changeset
|
216 } |
c1462b7880e8
Make si_read_sid_file() to allocate the PSIDHeader struct itself, adjust
Matti Hamalainen <ccr@tnsp.org>
parents:
104
diff
changeset
|
217 |
c1462b7880e8
Make si_read_sid_file() to allocate the PSIDHeader struct itself, adjust
Matti Hamalainen <ccr@tnsp.org>
parents:
104
diff
changeset
|
218 |
85
4c0ecb078591
Rename various variables and functions and change relevant places to use the
Matti Hamalainen <ccr@tnsp.org>
parents:
77
diff
changeset
|
219 const char *si_get_sid_clock_str(const int flags) |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
220 { |
132
b3e034b8c4b9
Change how certain flags (for SID model and clock) are handled.
Matti Hamalainen <ccr@tnsp.org>
parents:
131
diff
changeset
|
221 switch (flags) |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
222 { |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
223 case PSF_CLOCK_UNKNOWN : return "Unknown"; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
224 case PSF_CLOCK_PAL : return "PAL 50Hz"; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
225 case PSF_CLOCK_NTSC : return "NTSC 60Hz"; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
226 case PSF_CLOCK_ANY : return "PAL / NTSC"; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
227 default : return "?"; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
228 } |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
229 } |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
230 |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
231 |
85
4c0ecb078591
Rename various variables and functions and change relevant places to use the
Matti Hamalainen <ccr@tnsp.org>
parents:
77
diff
changeset
|
232 const char *si_get_sid_model_str(const int flags) |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
233 { |
132
b3e034b8c4b9
Change how certain flags (for SID model and clock) are handled.
Matti Hamalainen <ccr@tnsp.org>
parents:
131
diff
changeset
|
234 switch (flags) |
70
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
235 { |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
236 case PSF_MODEL_UNKNOWN : return "Unknown"; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
237 case PSF_MODEL_MOS6581 : return "MOS6581"; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
238 case PSF_MODEL_MOS8580 : return "MOS8580"; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
239 case PSF_MODEL_ANY : return "MOS6581 / MOS8580"; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
240 default : return "?"; |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
241 } |
4779bbec2f28
Split some functionality into sidlib.[ch].
Matti Hamalainen <ccr@tnsp.org>
parents:
diff
changeset
|
242 } |
86
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
243 |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
244 |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
245 // Free memory allocated for given SLDB node |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
246 // |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
247 static void si_sldb_node_free(SIDLibSLDBNode *node) |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
248 { |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
249 if (node) |
e1ff9cd27a84
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250 { |
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251 th_free_r(&node->lengths); |
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252 th_free_r(&node); |
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253 } |
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254 } |
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255 |
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256 |
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257 // Insert given node to db linked list |
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258 // |
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259 static void si_sldb_node_insert(SIDLibSLDB *dbh, SIDLibSLDBNode *node) |
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260 { |
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261 if (dbh->nodes) |
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262 { |
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263 node->prev = dbh->nodes->prev; |
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264 dbh->nodes->prev->next = node; |
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265 dbh->nodes->prev = node; |
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266 } |
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267 else |
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268 { |
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269 dbh->nodes = node; |
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270 node->prev = node; |
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271 } |
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272 node->next = NULL; |
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273 } |
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274 |
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275 |
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276 // Parse a time-entry in SLDB format |
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277 // |
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278 static int si_sldb_get_value(const char *str, size_t *pos) |
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279 { |
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280 int result = 0; |
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281 |
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282 while (isdigit(str[*pos])) |
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283 result = (result * 10) + (str[(*pos)++] - '0'); |
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284 |
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285 return result; |
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286 } |
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287 |
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288 |
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289 static int si_sldb_gettime(const char *str, size_t *pos) |
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290 { |
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291 int result; |
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292 |
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293 // Check if it starts with a digit |
88
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294 if (th_isdigit(str[*pos])) |
86
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295 { |
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296 // Get minutes-field |
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297 result = si_sldb_get_value(str, pos) * 60; |
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298 |
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299 // Check the field separator char |
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300 if (str[*pos] == ':') |
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301 { |
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302 // Get seconds-field |
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303 (*pos)++; |
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304 result += si_sldb_get_value(str, pos); |
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305 } |
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306 else |
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307 result = -2; |
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308 } |
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309 else |
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310 result = -1; |
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311 |
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312 // Ignore and skip the possible attributes |
88
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313 while (str[*pos] && !th_isspace(str[*pos])) |
86
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314 (*pos)++; |
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315 |
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316 return result; |
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317 } |
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318 |
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319 |
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320 // Parse one SLDB definition line, return SLDB node |
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321 // |
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322 SIDLibSLDBNode *si_sldb_parse_entry(th_ioctx *ctx, const char *line) |
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323 { |
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324 SIDLibSLDBNode *node = NULL; |
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325 size_t pos, tmpLen, savePos; |
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Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
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326 BOOL isOK; |
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327 int i; |
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328 |
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329 // Allocate new node |
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330 node = (SIDLibSLDBNode *) th_malloc0(sizeof(SIDLibSLDBNode)); |
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331 if (node == NULL) |
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332 { |
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333 th_io_error(ctx, THERR_MALLOC, |
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|
334 "Error allocating new node.\n"); |
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335 return NULL; |
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336 } |
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337 |
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|
338 // Get hash value |
160 | 339 for (pos = 0, i = 0; i < TH_MD5HASH_LENGTH; i++, pos += 2) |
86
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340 { |
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|
341 unsigned int tmpu; |
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Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
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|
342 sscanf(&line[pos], "%2x", &tmpu); |
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Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
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|
343 node->hash[i] = tmpu; |
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Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
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344 } |
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345 |
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346 // Get playtimes |
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Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
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|
347 th_findnext(line, &pos); |
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Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
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348 if (line[pos] != '=') |
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Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
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349 { |
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|
350 th_io_error(ctx, THERR_INVALID_DATA, |
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|
351 "'=' expected on column #%d.\n", pos); |
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Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
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|
352 goto error; |
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Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
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353 } |
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Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
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|
354 |
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Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
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|
355 // First playtime is after '=' |
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Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
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|
356 savePos = ++pos; |
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Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
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|
357 tmpLen = strlen(line); |
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Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
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diff
changeset
|
358 |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
359 // Get number of sub-tune lengths |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
360 isOK = TRUE; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
361 while (pos < tmpLen && isOK) |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
362 { |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
363 th_findnext(line, &pos); |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
364 |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
365 if (si_sldb_gettime(line, &pos) >= 0) |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
366 node->nlengths++; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
367 else |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
368 isOK = FALSE; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
369 } |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
370 |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
371 // Allocate memory for lengths |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
372 if (node->nlengths == 0) |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
373 goto error; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
374 |
99 | 375 node->lengths = (int *) th_calloc(node->nlengths, sizeof(int)); |
86
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
376 if (node->lengths == NULL) |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
377 { |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
378 th_io_error(ctx, THERR_MALLOC, |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
379 "Could not allocate memory for node.\n"); |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
380 goto error; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
381 } |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
382 |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
383 // Read lengths in |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
384 for (i = 0, pos = savePos, isOK = TRUE; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
385 pos < tmpLen && i < node->nlengths && isOK; i++) |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
386 { |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
387 int l; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
388 th_findnext(line, &pos); |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
389 |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
390 l = si_sldb_gettime(line, &pos); |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
391 if (l >= 0) |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
392 node->lengths[i] = l; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
393 else |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
394 isOK = FALSE; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
395 } |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
396 |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
397 return node; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
398 |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
399 error: |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
400 si_sldb_node_free(node); |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
401 return NULL; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
402 } |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
403 |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
404 |
88
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
405 SIDLibSLDB * si_sldb_new(void) |
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
406 { |
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
407 return (SIDLibSLDB *) th_malloc0(sizeof(SIDLibSLDB)); |
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
408 } |
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
409 |
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
410 |
86
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
411 // Read SLDB database to memory |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
412 // |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
413 int si_sldb_read(th_ioctx *ctx, SIDLibSLDB *dbh) |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
414 { |
88
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
415 char *line = NULL; |
86
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
416 |
88
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
417 if ((line = th_malloc(PSID_BUFFER_SIZE)) == NULL) |
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
418 { |
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
419 th_io_error(ctx, THERR_MALLOC, |
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
420 "Error allocating temporary data buffer of %d bytes.\n", |
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
421 PSID_BUFFER_SIZE); |
104
09ca9d9a8710
Change to match changed th_ioctx API.
Matti Hamalainen <ccr@tnsp.org>
parents:
103
diff
changeset
|
422 return ctx->status; |
88
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
423 } |
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
424 |
c5ff71d64e53
More work on sidlib SLDB code.
Matti Hamalainen <ccr@tnsp.org>
parents:
86
diff
changeset
|
425 while (thfgets(line, PSID_BUFFER_SIZE, ctx) != NULL) |
86
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
426 { |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
427 SIDLibSLDBNode *tmnode; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
428 size_t pos = 0; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
429 ctx->line++; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
430 |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
431 th_findnext(line, &pos); |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
432 |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
433 // Check if it is datafield |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
434 if (th_isxdigit(line[pos])) |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
435 { |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
436 // Check the length of the hash |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
437 int hashLen; |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
438 for (hashLen = 0; line[pos] && th_isxdigit(line[pos]); hashLen++, pos++); |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
439 |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
440 if (hashLen != TH_MD5HASH_LENGTH_CH) |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
441 { |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
442 th_io_error(ctx, THERR_INVALID_DATA, |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
443 "Invalid MD5-hash in SongLengthDB file '%s' line #%d:\n%s\n", |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
444 ctx->filename, ctx->line, line); |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
445 } |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
446 else |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
447 { |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
448 // Parse and add node to db |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
449 if ((tmnode = si_sldb_parse_entry(ctx, line)) != NULL) |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
450 { |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
451 si_sldb_node_insert(dbh, tmnode); |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
452 } |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
453 else |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
454 { |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
455 th_io_error(ctx, THERR_INVALID_DATA, |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
456 "Invalid entry in SongLengthDB file '%s' line #%d:\n%s\n", |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
457 ctx->filename, ctx->line, line); |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
458 } |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
459 } |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
460 } |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
461 else |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
462 if (line[pos] != ';' && line[pos] != '[' && line[pos] != 0) |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
463 { |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
464 th_io_error(ctx, THERR_INVALID_DATA, |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
465 "Invalid line in SongLengthDB file '%s' line #%d:\n%s\n", |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
466 ctx->filename, ctx->line, line); |
e1ff9cd27a84
Initial port of songlength database (SLDB) handling code from XMMS-SID to here.
Matti Hamalainen <ccr@tnsp.org>
parents:
85
diff
changeset
|
467 } |
e1ff9cd27a84
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468 } |
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469 |
88
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470 th_free(line); |
86
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471 return THERR_OK; |
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472 } |
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473 |
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474 |
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475 // Compare two given MD5-hashes. |
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476 // Return: 0 if equal |
102 | 477 // negative if hash1 < hash2 |
478 // positive if hash1 > hash2 | |
86
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479 // |
102 | 480 static int si_sldb_compare_hash(th_md5hash_t hash1, th_md5hash_t hash2) |
86
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481 { |
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482 int i, delta; |
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483 |
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484 for (i = delta = 0; i < TH_MD5HASH_LENGTH && !delta; i++) |
102 | 485 delta = hash1[i] - hash2[i]; |
86
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486 |
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487 return delta; |
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488 } |
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489 |
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490 |
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491 // Compare two nodes. |
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492 // We assume here that we never ever get NULL-pointers. |
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493 static int si_sldb_compare_nodes(const void *node1, const void *node2) |
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494 { |
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495 return si_sldb_compare_hash( |
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496 (*(SIDLibSLDBNode **) node1)->hash, |
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497 (*(SIDLibSLDBNode **) node2)->hash); |
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498 } |
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499 |
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500 |
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501 // (Re)create index |
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502 // |
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503 int si_sldb_build_index(SIDLibSLDB * dbh) |
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504 { |
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505 SIDLibSLDBNode *node; |
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506 |
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507 // Free old index |
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508 th_free_r(&dbh->pindex); |
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509 |
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510 // Get size of db |
100 | 511 for (node = dbh->nodes, dbh->nnodes = 0; node != NULL; node = node->next) |
512 dbh->nnodes++; | |
86
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513 |
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514 // Check number of nodes |
100 | 515 if (dbh->nnodes > 0) |
86
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516 { |
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517 size_t i; |
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518 |
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519 // Allocate memory for index-table |
100 | 520 dbh->pindex = (SIDLibSLDBNode **) th_malloc(sizeof(SIDLibSLDBNode *) * dbh->nnodes); |
86
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521 if (dbh->pindex == NULL) |
88
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522 return THERR_MALLOC; |
86
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523 |
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524 // Get node-pointers to table |
100 | 525 for (i = 0, node = dbh->nodes; node && i < dbh->nnodes; node = node->next) |
86
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526 dbh->pindex[i++] = node; |
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527 |
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528 // Sort the indexes |
100 | 529 qsort(dbh->pindex, dbh->nnodes, sizeof(SIDLibSLDBNode *), si_sldb_compare_nodes); |
86
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530 } |
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531 |
88
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532 return THERR_OK; |
86
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533 } |
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534 |
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535 |
103
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536 // |
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537 // Read binary format SLDB |
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538 // |
101
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539 int si_sldb_read_bin(th_ioctx *ctx, SIDLibSLDB *dbh) |
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540 { |
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541 PSIDLibHdr hdr; |
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542 th_md5state_t state; |
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543 th_md5hash_t hash; |
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544 size_t n; |
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545 |
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546 // Check pointers |
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547 if (ctx == NULL || dbh == NULL) |
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548 return THERR_NULLPTR; |
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549 |
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550 if (!thfread_str(ctx, &hdr.magic, sizeof(hdr.magic)) || |
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551 !thfread_le16(ctx, &hdr.version) || |
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552 !thfread_le32(ctx, &hdr.nnodes)) |
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553 return THERR_FREAD; |
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554 |
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555 // Check magic and version |
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556 if (memcmp(hdr.magic, SIDLIB_DB_MAGIC, sizeof(hdr.magic)) != 0) |
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557 return THERR_NOT_SUPPORTED; |
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558 |
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559 if (hdr.version != SIDLIB_DB_VERSION) |
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560 return THERR_NOT_SUPPORTED; |
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561 |
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562 // Make some reasonable assumptions about validity |
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563 if (hdr.nnodes == 0 || hdr.nnodes > 256*1024) |
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564 return THERR_INVALID_DATA; |
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565 |
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566 th_md5_init(&state); |
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567 th_md5_append_ne16(&state, hdr.version); |
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568 th_md5_append_ne32(&state, hdr.nnodes); |
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569 |
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570 // Allocate index |
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571 dbh->nnodes = hdr.nnodes; |
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572 dbh->pindex = (SIDLibSLDBNode **) th_malloc(sizeof(SIDLibSLDBNode *) * dbh->nnodes); |
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573 if (dbh->pindex == NULL) |
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574 return THERR_MALLOC; |
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575 |
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576 // Read nodes |
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577 for (n = 0; n < dbh->nnodes; n++) |
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578 { |
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579 SIDLibSLDBNode *node; |
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580 th_md5hash_t mhash; |
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581 uint16_t tmpn; |
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582 int index; |
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583 |
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584 // Read node hash and nlengths |
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585 if (!thfread_str(ctx, mhash, TH_MD5HASH_LENGTH) || |
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586 !thfread_le16(ctx, &tmpn)) |
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587 return THERR_FREAD; |
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588 |
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589 // Sanity check |
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590 if (tmpn == 0 || tmpn > 2048) |
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591 return THERR_INVALID_DATA; |
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592 |
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593 // Append to hash |
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594 th_md5_append(&state, mhash, TH_MD5HASH_LENGTH); |
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595 th_md5_append_ne16(&state, tmpn); |
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596 |
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597 // Allocate node |
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598 node = (SIDLibSLDBNode *) th_malloc0(sizeof(SIDLibSLDBNode)); |
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599 if (node == NULL) |
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600 return THERR_MALLOC; |
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601 |
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602 node->nlengths = tmpn; |
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603 memcpy(node->hash, mhash, sizeof(mhash)); |
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604 |
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605 node->lengths = (int *) th_calloc(node->nlengths, sizeof(int)); |
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606 if (node->lengths == NULL) |
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607 { |
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608 th_free(node); |
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609 th_io_error(ctx, THERR_MALLOC, |
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610 "Could not allocate memory for node.\n"); |
104
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611 return ctx->status; |
101
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612 } |
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613 |
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614 // Read node lenghts |
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615 for (index = 0; index < node->nlengths; index++) |
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616 { |
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617 uint16_t tmpl; |
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618 if (!thfread_le16(ctx, &tmpl)) |
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619 return THERR_FREAD; |
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620 |
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621 th_md5_append_ne16(&state, tmpl); |
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622 node->lengths[index] = tmpl; |
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623 } |
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624 |
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625 si_sldb_node_insert(dbh, node); |
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626 dbh->pindex[n] = node; |
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627 } |
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628 |
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629 // Read stored checksum hash |
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630 if (!thfread_str(ctx, hdr.hash, sizeof(hdr.hash))) |
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631 return THERR_FREAD; |
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632 |
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633 // Compare to what we get |
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634 th_md5_finish(&state, hash); |
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635 if (memcmp(hash, hdr.hash, sizeof(hdr.hash)) != 0) |
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636 return THERR_INVALID_DATA; |
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637 |
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638 return THERR_OK; |
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639 } |
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640 |
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641 |
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642 int si_sldb_write_bin(th_ioctx *ctx, SIDLibSLDB *dbh) |
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643 { |
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644 th_md5state_t state; |
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645 th_md5hash_t hash; |
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646 size_t n; |
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647 |
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648 // Check pointers |
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649 if (ctx == NULL || dbh == NULL) |
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650 return THERR_NULLPTR; |
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651 |
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652 // Write header |
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653 if (!thfwrite_str(ctx, SIDLIB_DB_MAGIC, 8) || |
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654 !thfwrite_le16(ctx, SIDLIB_DB_VERSION) || |
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655 !thfwrite_le32(ctx, dbh->nnodes)) |
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656 return THERR_FWRITE; |
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657 |
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658 th_md5_init(&state); |
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659 th_md5_append_ne16(&state, SIDLIB_DB_VERSION); |
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660 th_md5_append_ne32(&state, dbh->nnodes); |
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661 |
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662 // Write nodes |
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663 for (n = 0; n < dbh->nnodes; n++) |
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664 { |
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665 SIDLibSLDBNode *node = dbh->pindex[n]; |
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666 uint16_t tmpn; |
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667 int index; |
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668 |
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669 // Sanity check |
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670 if (node->nlengths <= 0 || node->nlengths > 2048) |
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671 return THERR_INVALID_DATA; |
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672 |
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673 tmpn = node->nlengths; |
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674 th_md5_append(&state, node->hash, TH_MD5HASH_LENGTH); |
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675 th_md5_append_ne16(&state, tmpn); |
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676 |
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677 // Write node data |
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678 if (!thfwrite_str(ctx, node->hash, TH_MD5HASH_LENGTH) || |
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679 !thfwrite_le16(ctx, tmpn)) |
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680 return THERR_FWRITE; |
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681 |
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682 for (index = 0; index < node->nlengths; index++) |
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683 { |
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684 if (node->lengths[index] > 16378) |
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685 return THERR_INVALID_DATA; |
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686 |
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687 if (!thfwrite_le16(ctx, node->lengths[index])) |
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688 return THERR_FWRITE; |
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689 |
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690 th_md5_append_ne16(&state, node->lengths[index]); |
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691 } |
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692 } |
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693 |
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694 th_md5_finish(&state, hash); |
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695 if (!thfwrite_str(ctx, hash, sizeof(hash))) |
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696 return THERR_FWRITE; |
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697 |
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698 return THERR_OK; |
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699 } |
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700 |
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701 |
86
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702 // Free a given song-length database |
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703 // |
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704 void si_sldb_free(SIDLibSLDB *dbh) |
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705 { |
88
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706 if (dbh != NULL) |
86
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707 { |
88
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708 SIDLibSLDBNode *node = dbh->nodes; |
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709 while (node != NULL) |
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710 { |
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711 SIDLibSLDBNode *next = node->next; |
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712 si_sldb_node_free(node); |
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713 node = next; |
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714 } |
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715 |
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716 dbh->nodes = NULL; |
100 | 717 dbh->nnodes = 0; |
88
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718 |
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719 th_free_r(&dbh->pindex); |
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720 th_free(dbh); |
86
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721 } |
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722 } |
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723 |
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724 |
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725 SIDLibSLDBNode *si_sldb_get_by_hash(SIDLibSLDB *dbh, th_md5hash_t hash) |
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726 { |
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727 SIDLibSLDBNode keyItem, *key, **item; |
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728 |
88
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729 memcpy(&keyItem.hash, hash, sizeof(th_md5hash_t)); |
86
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730 key = &keyItem; |
100 | 731 item = bsearch(&key, dbh->pindex, dbh->nnodes, sizeof(dbh->pindex[0]), si_sldb_compare_nodes); |
86
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732 |
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733 return (item != NULL) ? *item : NULL; |
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734 } |