1 |
/* |
2 |
* soundplay.cpp - SIDPlayer SoundPlay plugin |
3 |
* |
4 |
* SIDPlayer (C) Copyright 1996-2004 Christian Bauer |
5 |
* |
6 |
* This program is free software; you can redistribute it and/or modify |
7 |
* it under the terms of the GNU General Public License as published by |
8 |
* the Free Software Foundation; either version 2 of the License, or |
9 |
* (at your option) any later version. |
10 |
* |
11 |
* This program is distributed in the hope that it will be useful, |
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 |
* GNU General Public License for more details. |
15 |
* |
16 |
* You should have received a copy of the GNU General Public License |
17 |
* along with this program; if not, write to the Free Software |
18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 |
*/ |
20 |
|
21 |
|
22 |
#include <stdio.h> |
23 |
#include <string.h> |
24 |
#include <stdlib.h> |
25 |
#include <MediaDefs.h> |
26 |
#include <Path.h> |
27 |
|
28 |
#include "soundplay.h" |
29 |
|
30 |
#include "prefs.h" |
31 |
#include "main.h" |
32 |
#include "psid.h" |
33 |
#include "sid.h" |
34 |
#include "prefs_window.h" |
35 |
|
36 |
static const char MY_URL_HEADER[] = "sid://"; |
37 |
const int MY_URL_HEADER_LEN = 6; |
38 |
|
39 |
/* =========================================================== |
40 |
Plugin-descriptor structure. |
41 |
This structure is used to gather information about a plugin |
42 |
and instantiate and destroy specific instances of a plugin. |
43 |
Since SIDPlayer is single-context, we set the single context |
44 |
flag to make SoundPlay load additional instances of this plugin |
45 |
when needed. |
46 |
*/ |
47 |
static plugin_descriptor plugin={ |
48 |
PLUGIN_DESCRIPTOR_MAGIC,PLUGIN_DESCRIPTOR_VERSION, |
49 |
"sp-sidplay",1, PLUGIN_IS_DECODER|PLUGIN_IS_SINGLE_CONTEXT, |
50 |
|
51 |
"SIDPlayer Decoder", |
52 |
"By Christian Bauer.\n\n" |
53 |
"SoundPlay plugin by\nMarco Nelissen.", |
54 |
NULL, //about, |
55 |
configure, |
56 |
getplugin, |
57 |
destroyplugin |
58 |
}; |
59 |
|
60 |
/* =========================================================== |
61 |
Plugin-operations structure. |
62 |
This is used to actually perform operations on a plugin. |
63 |
It is returned by the getplugin() function from the |
64 |
plugin_descriptor structure above. |
65 |
*/ |
66 |
static decoder_plugin_ops ops={ |
67 |
PLUGIN_DECODER_MAGIC,PLUGIN_DECODER_VERSION, |
68 |
|
69 |
open, |
70 |
NULL, // close |
71 |
info, |
72 |
read, |
73 |
NULL, // play |
74 |
NULL, // stop |
75 |
NULL, // setvolume |
76 |
NULL, // setpitchandspeed |
77 |
NULL, // seek, |
78 |
NULL, // position, |
79 |
NULL // bufferamount |
80 |
}; |
81 |
|
82 |
|
83 |
/* =========================================================== |
84 |
Return the list of plugins in this file. |
85 |
*/ |
86 |
static plugin_descriptor *plugs[]={ |
87 |
&plugin, |
88 |
0 |
89 |
}; |
90 |
|
91 |
plugin_descriptor **get_plugin_list(void) |
92 |
{ |
93 |
return plugs; |
94 |
} |
95 |
|
96 |
/* =========================================================== |
97 |
Return the list of filetypes supported by all the plugins |
98 |
in this file |
99 |
*/ |
100 |
static supported_type supportedtypes[]= |
101 |
{ |
102 |
{"audio/x-psid", "SIDPlayer file", "SIDPlayer file", "sid", "psid"}, |
103 |
{NULL, NULL, NULL, NULL, NULL} |
104 |
}; |
105 |
|
106 |
supported_type *get_supported_types(void) |
107 |
{ |
108 |
return supportedtypes; |
109 |
} |
110 |
|
111 |
|
112 |
/* =========================================================== |
113 |
Implementation of the plugin_descriptor functions |
114 |
*/ |
115 |
|
116 |
static BWindow *prefs_window=NULL; |
117 |
|
118 |
static bool initialized=false; |
119 |
|
120 |
class autoinit |
121 |
{ |
122 |
public: |
123 |
autoinit() |
124 |
{ |
125 |
} |
126 |
~autoinit() |
127 |
{ |
128 |
if(initialized) |
129 |
{ |
130 |
ExitAll(); |
131 |
initialized = false; |
132 |
} |
133 |
} |
134 |
}; |
135 |
static autoinit autoinit; |
136 |
|
137 |
static void *getplugin(void **data, const char *filename, const char *header, uint32 size, plugin_info *info) |
138 |
{ |
139 |
if(!initialized) |
140 |
{ |
141 |
initialized = true; |
142 |
int argc = 0; |
143 |
char **argv = NULL; |
144 |
InitAll(argc, argv); |
145 |
} |
146 |
if (strncasecmp(filename, MY_URL_HEADER, MY_URL_HEADER_LEN) == 0) { |
147 |
// name starts with "sid://", extract file name |
148 |
char name[B_FILE_NAME_LENGTH]; |
149 |
char *q = strrchr(filename, '?'); |
150 |
if (q == NULL) |
151 |
return NULL; |
152 |
int name_len = q - (filename + MY_URL_HEADER_LEN); |
153 |
strncpy(name, filename + MY_URL_HEADER_LEN, name_len); |
154 |
name[name_len] = 0; |
155 |
if(!IsPSIDFile(name)) |
156 |
return NULL; |
157 |
} else { |
158 |
if(!IsPSIDFile(filename)) |
159 |
return NULL; |
160 |
} |
161 |
return &ops; |
162 |
} |
163 |
|
164 |
static void destroyplugin(void *ops,void *_sh) |
165 |
{ |
166 |
} |
167 |
|
168 |
static BView* configure(BMessage *config) |
169 |
{ |
170 |
if (prefs_window_open && prefs_window) { |
171 |
prefs_window->Activate(true); |
172 |
return NULL; |
173 |
} else { |
174 |
prefs_window = new PrefsWindow(); |
175 |
return NULL; |
176 |
} |
177 |
} |
178 |
|
179 |
/* =========================================================== |
180 |
Implementation of the decoder_plugin_ops functions |
181 |
*/ |
182 |
|
183 |
status_t open(void *,const char *filename, const char *header, uint32 size, BMessage *config) |
184 |
{ |
185 |
char name[B_FILE_NAME_LENGTH]; |
186 |
bool subsong_given = false; |
187 |
int song; |
188 |
|
189 |
if (strncasecmp(filename, MY_URL_HEADER, MY_URL_HEADER_LEN) == 0) { |
190 |
|
191 |
// name starts with "sid://", extract file name |
192 |
char *q = strrchr(filename, '?'); |
193 |
if (q == NULL) |
194 |
return B_ERROR; |
195 |
subsong_given = true; |
196 |
song = atoi(q + 1); |
197 |
int name_len = q - (filename + MY_URL_HEADER_LEN); |
198 |
strncpy(name, filename + MY_URL_HEADER_LEN, name_len); |
199 |
name[name_len] = 0; |
200 |
|
201 |
} else |
202 |
strcpy(name, filename); |
203 |
|
204 |
// Load PSID file |
205 |
if (!LoadPSIDFile(name)) |
206 |
return B_ERROR; |
207 |
|
208 |
// Select subsong if subsong number given |
209 |
if (subsong_given) |
210 |
SelectSong(song); |
211 |
|
212 |
return B_OK; |
213 |
} |
214 |
|
215 |
|
216 |
static status_t info(void *_sid, file_info *info) |
217 |
{ |
218 |
strcpy(info->name,""); |
219 |
strcpy(info->typedesc,"SID"); |
220 |
strcpy(info->mimetype,"audio/x-psid"); |
221 |
info->samplerate=44100; |
222 |
info->bitrate=0; |
223 |
info->numchannels=2; |
224 |
info->granularity=4096; |
225 |
info->framecount=0x7fffffff; |
226 |
info->samplesize=2; |
227 |
if(B_HOST_IS_LENDIAN) |
228 |
info->byteorder=B_LITTLE_ENDIAN; |
229 |
else |
230 |
info->byteorder=B_BIG_ENDIAN; |
231 |
info->sampleformat=B_LINEAR_SAMPLES; |
232 |
info->flags=PLUGIN_FILELENGTH_UNKNOWN; |
233 |
|
234 |
return B_OK; |
235 |
} |
236 |
|
237 |
|
238 |
int32 read(void *,char *buf, ulong numframes) |
239 |
{ |
240 |
SIDCalcBuffer((uint8*)buf, numframes*4); |
241 |
return numframes; |
242 |
} |
243 |
|
244 |
|