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cebix |
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/* |
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* soundplay.cpp - SIDPlayer SoundPlay plugin |
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* |
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cebix |
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* SIDPlayer (C) Copyright 1996-2001 Christian Bauer |
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cebix |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#include <stdio.h> |
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#include <string.h> |
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#include <stdlib.h> |
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#include <MediaDefs.h> |
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#include <Path.h> |
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#include "soundplay.h" |
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#include "prefs.h" |
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#include "main.h" |
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#include "psid.h" |
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#include "sid.h" |
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#include "prefs_window.h" |
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static const char MY_URL_HEADER[] = "sid://"; |
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const int MY_URL_HEADER_LEN = 6; |
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/* =========================================================== |
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Plugin-descriptor structure. |
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This structure is used to gather information about a plugin |
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and instantiate and destroy specific instances of a plugin. |
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Since SIDPlayer is single-context, we set the single context |
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flag to make SoundPlay load additional instances of this plugin |
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when needed. |
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*/ |
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static plugin_descriptor plugin={ |
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PLUGIN_DESCRIPTOR_MAGIC,PLUGIN_DESCRIPTOR_VERSION, |
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"sp-sidplay",1, PLUGIN_IS_DECODER|PLUGIN_IS_SINGLE_CONTEXT, |
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"SIDPlayer Decoder", |
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"By Christian Bauer.\n\n" |
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"SoundPlay plugin by\nMarco Nelissen.", |
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NULL, //about, |
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configure, |
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getplugin, |
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destroyplugin |
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}; |
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/* =========================================================== |
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Plugin-operations structure. |
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This is used to actually perform operations on a plugin. |
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It is returned by the getplugin() function from the |
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plugin_descriptor structure above. |
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*/ |
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static decoder_plugin_ops ops={ |
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PLUGIN_DECODER_MAGIC,PLUGIN_DECODER_VERSION, |
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open, |
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NULL, // close |
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info, |
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read, |
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NULL, // play |
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NULL, // stop |
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NULL, // setvolume |
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NULL, // setpitchandspeed |
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NULL, // seek, |
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NULL, // position, |
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NULL // bufferamount |
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}; |
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/* =========================================================== |
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Return the list of plugins in this file. |
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*/ |
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static plugin_descriptor *plugs[]={ |
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&plugin, |
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0 |
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}; |
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plugin_descriptor **get_plugin_list(void) |
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{ |
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return plugs; |
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} |
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/* =========================================================== |
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Return the list of filetypes supported by all the plugins |
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in this file |
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*/ |
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static supported_type supportedtypes[]= |
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{ |
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{"audio/x-psid", "SIDPlayer file", "SIDPlayer file", "sid", "psid"}, |
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{NULL, NULL, NULL, NULL, NULL} |
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}; |
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supported_type *get_supported_types(void) |
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{ |
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return supportedtypes; |
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} |
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/* =========================================================== |
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Implementation of the plugin_descriptor functions |
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*/ |
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static BWindow *prefs_window=NULL; |
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static bool initialized=false; |
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class autoinit |
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{ |
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public: |
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autoinit() |
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{ |
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} |
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~autoinit() |
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{ |
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if(initialized) |
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{ |
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ExitAll(); |
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initialized = false; |
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} |
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} |
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}; |
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static autoinit autoinit; |
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static void *getplugin(void **data, const char *filename, const char *header, uint32 size, plugin_info *info) |
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{ |
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if(!initialized) |
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{ |
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initialized = true; |
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cebix |
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int argc = 0; |
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char **argv = NULL; |
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InitAll(argc, argv); |
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cebix |
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} |
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if (strncasecmp(filename, MY_URL_HEADER, MY_URL_HEADER_LEN) == 0) { |
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// name starts with "sid://", extract file name |
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char name[B_FILE_NAME_LENGTH]; |
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char *q = strrchr(filename, '?'); |
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if (q == NULL) |
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return NULL; |
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int name_len = q - (filename + MY_URL_HEADER_LEN); |
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strncpy(name, filename + MY_URL_HEADER_LEN, name_len); |
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name[name_len] = 0; |
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if(!IsPSIDFile(name)) |
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return NULL; |
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} else { |
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if(!IsPSIDFile(filename)) |
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return NULL; |
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} |
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return &ops; |
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} |
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static void destroyplugin(void *ops,void *_sh) |
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{ |
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} |
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static BView* configure(BMessage *config) |
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{ |
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if (prefs_window_open && prefs_window) { |
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prefs_window->Activate(true); |
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return NULL; |
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} else { |
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prefs_window = new PrefsWindow(); |
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return NULL; |
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} |
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} |
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/* =========================================================== |
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Implementation of the decoder_plugin_ops functions |
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*/ |
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status_t open(void *,const char *filename, const char *header, uint32 size, BMessage *config) |
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{ |
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char name[B_FILE_NAME_LENGTH]; |
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bool subsong_given = false; |
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int song; |
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if (strncasecmp(filename, MY_URL_HEADER, MY_URL_HEADER_LEN) == 0) { |
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// name starts with "sid://", extract file name |
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char *q = strrchr(filename, '?'); |
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if (q == NULL) |
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return B_ERROR; |
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subsong_given = true; |
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song = atoi(q + 1); |
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int name_len = q - (filename + MY_URL_HEADER_LEN); |
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strncpy(name, filename + MY_URL_HEADER_LEN, name_len); |
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name[name_len] = 0; |
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} else |
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strcpy(name, filename); |
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// Load PSID file |
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if (!LoadPSIDFile(name)) |
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return B_ERROR; |
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// Select subsong if subsong number given |
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if (subsong_given) |
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SelectSong(song); |
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return B_OK; |
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} |
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static status_t info(void *_sid, file_info *info) |
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{ |
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strcpy(info->name,""); |
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strcpy(info->typedesc,"SID"); |
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strcpy(info->mimetype,"audio/x-psid"); |
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info->samplerate=44100; |
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info->bitrate=0; |
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info->numchannels=2; |
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info->granularity=4096; |
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info->framecount=0x7fffffff; |
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info->samplesize=2; |
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if(B_HOST_IS_LENDIAN) |
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info->byteorder=B_LITTLE_ENDIAN; |
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else |
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info->byteorder=B_BIG_ENDIAN; |
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info->sampleformat=B_LINEAR_SAMPLES; |
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info->flags=PLUGIN_FILELENGTH_UNKNOWN; |
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return B_OK; |
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} |
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int32 read(void *,char *buf, ulong numframes) |
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{ |
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SIDCalcBuffer((uint8*)buf, numframes*4); |
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return numframes; |
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} |
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