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root/cebix/SIDPlayer/src/soundplay.cpp
Revision: 1.2
Committed: 2001-01-21T18:04:46Z (23 years, 1 month ago) by cebix
Branch: MAIN
Changes since 1.1: +2 -2 lines
Log Message:
- fixed compilation problems under BeOS
- updated copyright year 2000->2001

File Contents

# Content
1 /*
2 * soundplay.cpp - SIDPlayer SoundPlay plugin
3 *
4 * SIDPlayer (C) Copyright 1996-2001 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 InitAll(0, NULL);
143 }
144 if (strncasecmp(filename, MY_URL_HEADER, MY_URL_HEADER_LEN) == 0) {
145 // name starts with "sid://", extract file name
146 char name[B_FILE_NAME_LENGTH];
147 char *q = strrchr(filename, '?');
148 if (q == NULL)
149 return NULL;
150 int name_len = q - (filename + MY_URL_HEADER_LEN);
151 strncpy(name, filename + MY_URL_HEADER_LEN, name_len);
152 name[name_len] = 0;
153 if(!IsPSIDFile(name))
154 return NULL;
155 } else {
156 if(!IsPSIDFile(filename))
157 return NULL;
158 }
159 return &ops;
160 }
161
162 static void destroyplugin(void *ops,void *_sh)
163 {
164 }
165
166 static BView* configure(BMessage *config)
167 {
168 if (prefs_window_open && prefs_window) {
169 prefs_window->Activate(true);
170 return NULL;
171 } else {
172 prefs_window = new PrefsWindow();
173 return NULL;
174 }
175 }
176
177 /* ===========================================================
178 Implementation of the decoder_plugin_ops functions
179 */
180
181 status_t open(void *,const char *filename, const char *header, uint32 size, BMessage *config)
182 {
183 char name[B_FILE_NAME_LENGTH];
184 bool subsong_given = false;
185 int song;
186
187 if (strncasecmp(filename, MY_URL_HEADER, MY_URL_HEADER_LEN) == 0) {
188
189 // name starts with "sid://", extract file name
190 char *q = strrchr(filename, '?');
191 if (q == NULL)
192 return B_ERROR;
193 subsong_given = true;
194 song = atoi(q + 1);
195 int name_len = q - (filename + MY_URL_HEADER_LEN);
196 strncpy(name, filename + MY_URL_HEADER_LEN, name_len);
197 name[name_len] = 0;
198
199 } else
200 strcpy(name, filename);
201
202 // Load PSID file
203 if (!LoadPSIDFile(name))
204 return B_ERROR;
205
206 // Select subsong if subsong number given
207 if (subsong_given)
208 SelectSong(song);
209
210 return B_OK;
211 }
212
213
214 static status_t info(void *_sid, file_info *info)
215 {
216 strcpy(info->name,"");
217 strcpy(info->typedesc,"SID");
218 strcpy(info->mimetype,"audio/x-psid");
219 info->samplerate=44100;
220 info->bitrate=0;
221 info->numchannels=2;
222 info->granularity=4096;
223 info->framecount=0x7fffffff;
224 info->samplesize=2;
225 if(B_HOST_IS_LENDIAN)
226 info->byteorder=B_LITTLE_ENDIAN;
227 else
228 info->byteorder=B_BIG_ENDIAN;
229 info->sampleformat=B_LINEAR_SAMPLES;
230 info->flags=PLUGIN_FILELENGTH_UNKNOWN;
231
232 return B_OK;
233 }
234
235
236 int32 read(void *,char *buf, ulong numframes)
237 {
238 SIDCalcBuffer((uint8*)buf, numframes*4);
239 return numframes;
240 }
241
242