/*
- Copyright (C) 2012 Paul Davis
+ Copyright (C) 2012 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <pthread.h>
#include <glib.h>
-#include <glib/gstdio.h>
+#include "pbd/gstdio_compat.h"
#include <glibmm/miscutils.h>
#include <glibmm/fileutils.h>
#include "pbd/basename.h"
#include "pbd/error.h"
-#include "i18n.h"
+#include "pbd/i18n.h"
/***********************************************************/
/* VSTFX - A set of modules for managing linux VST plugins */
/*default error handler callback*/
-void default_vstfx_error_callback (const char *desc)
+static void default_vstfx_error_callback (const char *desc)
{
PBD::error << desc << endmsg;
}
/*Create and return a pointer to a new VSTFX handle*/
-VSTHandle *
+static VSTHandle *
vstfx_handle_new ()
{
VSTHandle* vstfx = (VSTHandle *) calloc (1, sizeof (VSTHandle));
/*Create and return a pointer to a new vstfx instance*/
-VSTState *
+static VSTState *
vstfx_new ()
{
VSTState* vstfx = (VSTState *) calloc (1, sizeof (VSTState));
-
- /*Mutexes*/
-
- pthread_mutex_init (&vstfx->lock, 0);
- pthread_cond_init (&vstfx->window_status_change, 0);
- pthread_cond_init (&vstfx->plugin_dispatcher_called, 0);
- pthread_cond_init (&vstfx->window_created, 0);
-
- /*Safe values*/
-
- vstfx->want_program = -1;
- vstfx->want_chunk = 0;
- vstfx->n_pending_keys = 0;
- vstfx->has_editor = 0;
- vstfx->program_set_without_editor = 0;
- vstfx->linux_window = 0;
- vstfx->linux_plugin_ui_window = 0;
- vstfx->eventProc = 0;
- vstfx->extra_data = 0;
- vstfx->want_resize = 0;
-
+ vststate_init (vstfx);
return vstfx;
}
/*This loads the plugin shared library*/
-void* vstfx_load_vst_library(const char* path)
+static void* vstfx_load_vst_library(const char* path)
{
void* dll;
- char* full_path;
+ char* full_path = NULL;
char* envdup;
char* lxvst_path;
size_t len1;
size_t len2;
- /*Try and load the shared library pointed to by the path -
+ /*Try and load the shared library pointed to by the path -
NOTE: You have to give RTLD_LAZY or RTLD_NOW to dlopen or
you get some occasional failures to load - dlerror reports
invalid arguments*/
PBD::error << string_compose (_("Could not open existing LXVST plugin: %1"), dlerror()) << endmsg;
return 0;
}
-
+
/*We didn't find the library so try and get the path specified in the
env variable LXVST_PATH*/
envdup = getenv ("LXVST_PATH");
-
+
/*Path not specified - not much more we can do*/
-
+
if (envdup == 0)
return 0;
-
+
/*Copy the path into envdup*/
-
+
envdup = strdup (envdup);
-
+
if (envdup == 0)
return 0;
-
+
len2 = strlen(path);
/*Try all the possibilities in the path - deliminated by : */
+ char *saveptr;
+ lxvst_path = strtok_r (envdup, ":", &saveptr);
- lxvst_path = strtok (envdup, ":");
-
while (lxvst_path != 0)
{
vstfx_error ("\"%s\"", lxvst_path);
len1 = strlen(lxvst_path);
-
+
+ if (full_path) free(full_path);
full_path = (char*)malloc(len1 + 1 + len2 + 1);
memcpy(full_path, lxvst_path, len1);
full_path[len1] = '/';
/*Succeeded */
break;
}
-
+
/*Try again*/
- lxvst_path = strtok (0, ":");
+ lxvst_path = strtok_r (0, ":", &saveptr);
}
/*Free the path*/
-
+ if (full_path) free(full_path);
free(envdup);
return dll;
{
char* buf = 0;
VSTHandle* fhandle;
-
+
/*Create a new handle we can use to reference the plugin*/
fhandle = vstfx_handle_new();
-
+
/*See if we have .so appended to the path - if not we need to make sure it is added*/
if (strstr (path, ".so") == 0)
{
/*Append the .so to the path - Make sure the path has enough space*/
-
+
buf = (char *)malloc(strlen(path) + 4); //The .so and a terminating zero
sprintf (buf, "%s.so", path);
-
- fhandle->nameptr = strdup (path);
}
else
{
/*We already have .so appened to the filename*/
-
+
buf = strdup(path);
-
- fhandle->nameptr = strdup (path);
}
/* get a name for the plugin based on the path: ye old VST problem where
we don't know anything about its name until we load and instantiate the plugin
which we don't want to do at this point
*/
-
- fhandle->name = strdup (PBD::basename_nosuffix (fhandle->nameptr).c_str());
+
+ fhandle->name = strdup (PBD::basename_nosuffix (path).c_str());
/*call load_vstfx_library to actually load the .so into memory*/
if ((fhandle->dll = vstfx_load_vst_library (buf)) == 0)
{
vstfx_unload (fhandle);
-
+
free(buf);
-
+
return 0;
}
/*Find the main entry point into the plugin*/
- fhandle->main_entry = (main_entry_t) dlsym(fhandle->dll, "main");
+ fhandle->main_entry = (main_entry_t) dlsym(fhandle->dll, "VSTPluginMain");
if (fhandle->main_entry == 0) {
- if ((fhandle->main_entry = (main_entry_t) dlsym(fhandle->dll, "VSTPluginMain")) != 0) {
- PBD::warning << path << _(": is a VST >= 2.4 - this plugin may or may not function correctly with this version of Ardour.") << endmsg;
- }
+ fhandle->main_entry = (main_entry_t) dlsym(fhandle->dll, "main");
}
if (fhandle->main_entry == 0)
{
/*If it can't be found, unload the plugin and return a 0 handle*/
-
+
vstfx_unload (fhandle);
-
+
free(buf);
-
+
return 0;
}
{
/*Still have plugin instances - can't unload the library
- actually dlclose keeps an instance count anyway*/
-
+
return -1;
}
fhandle->dll = 0;
}
- if (fhandle->nameptr)
+ if (fhandle->name)
{
- free (fhandle->nameptr);
free (fhandle->name);
}
-
+
/*Don't need the plugin handle any more*/
-
+
free (fhandle);
return 0;
}
if(fhandle == 0)
{
- vstfx_error( "** ERROR ** VSTFX : The handle was 0\n" );
- return 0;
+ vstfx_error( "** ERROR ** VSTFX : The handle was 0\n" );
+ free (vstfx);
+ return 0;
}
- if ((vstfx->plugin = fhandle->main_entry (amc)) == 0)
+ if ((vstfx->plugin = fhandle->main_entry (amc)) == 0)
{
vstfx_error ("** ERROR ** VSTFX : %s could not be instantiated :(\n", fhandle->name);
free (vstfx);
return 0;
}
-
+
vstfx->handle = fhandle;
- vstfx->plugin->user = userptr;
-
+ vstfx->plugin->ptr1 = userptr;
+
if (vstfx->plugin->magic != kEffectMagic)
{
vstfx_error ("** ERROR ** VSTFX : %s is not a VST plugin\n", fhandle->name);
free (vstfx);
return 0;
}
-
- vstfx->plugin->dispatcher (vstfx->plugin, effOpen, 0, 0, 0, 0);
-
- /*May or May not need to 'switch the plugin on' here - unlikely
- since FST doesn't and most plugins start up 'On' by default - I think this is the least of our worries*/
-
- //vstfx->plugin->dispatcher (vstfx->plugin, effMainsChanged, 0, 1, 0, 0);
-
- vstfx->vst_version = vstfx->plugin->dispatcher (vstfx->plugin, effGetVstVersion, 0, 0, 0, 0);
-
+
+ if (!userptr) {
+ /* scanning.. or w/o master-callback userptr == 0, open now.
+ *
+ * Session::vst_callback needs a pointer to the AEffect
+ * ((VSTPlugin*)userptr)->_plugin = vstfx->plugin
+ * before calling effOpen, because effOpen may call back
+ */
+ vstfx->plugin->dispatcher (vstfx->plugin, effOpen, 0, 0, 0, 0);
+ vstfx->vst_version = vstfx->plugin->dispatcher (vstfx->plugin, effGetVstVersion, 0, 0, 0, 0);
+ }
+
vstfx->handle->plugincnt++;
vstfx->wantIdle = 0;
-
+
return vstfx;
}
void vstfx_close (VSTState* vstfx)
{
vstfx_destroy_editor(vstfx);
-
+
if(vstfx->plugin)
{
vstfx->plugin->dispatcher (vstfx->plugin, effMainsChanged, 0, 0, 0, 0);
-
+
/*Calling dispatcher with effClose will cause the plugin's destructor to
be called, which will also remove the editor if it exists*/
-
+
vstfx->plugin->dispatcher (vstfx->plugin, effClose, 0, 0, 0, 0);
}
if (vstfx->handle->plugincnt)
vstfx->handle->plugincnt--;
-
- /*vstfx_unload will unload the dll if the instance count allows -
+
+ /*vstfx_unload will unload the dll if the instance count allows -
we need to do this because some plugins keep their own instance count
and (JUCE) manages the plugin UI in its own thread. When the plugins
internal instance count reaches zero, JUCE stops the UI thread and won't
restart it until the next time the library is loaded. If we don't unload
the lib JUCE will never restart*/
-
-
+
+
if (vstfx->handle->plugincnt)
{
return;
}
-
+
/*Valid plugin loaded - so we can unload it and 0 the pointer
to it. We can't free the handle here because we don't know what else
might need it. It should be / is freed when the plugin is deleted*/
}
free(vstfx);
}
-
-
-bool
-vstfx_save_state (VSTState* vstfx, char * filename)
-{
- FILE* f = g_fopen (filename, "wb");
- if (f)
- {
- int bytelen;
- int numParams = vstfx->plugin->numParams;
- int i;
- char productString[64];
- char effectName[64];
- char vendorString[64];
- int success;
-
- /* write header */
-
- fprintf(f, "<plugin_state>\n");
-
- success = vstfx_call_dispatcher(vstfx, effGetProductString, 0, 0, productString, 0);
-
- if(success == 1)
- {
- fprintf (f, " <check field=\"productString\" value=\"%s\"/>\n", productString);
- }
- else
- {
- printf ("No product string\n");
- }
-
- success = vstfx_call_dispatcher(vstfx, effGetEffectName, 0, 0, effectName, 0);
-
- if(success == 1)
- {
- fprintf (f, " <check field=\"effectName\" value=\"%s\"/>\n", effectName);
- printf ("Effect name: %s\n", effectName);
- }
- else
- {
- printf ("No effect name\n");
- }
-
- success = vstfx_call_dispatcher(vstfx, effGetVendorString, 0, 0, vendorString, 0);
-
- if( success == 1 )
- {
- fprintf (f, " <check field=\"vendorString\" value=\"%s\"/>\n", vendorString);
- printf ("Vendor string: %s\n", vendorString);
- }
- else
- {
- printf ("No vendor string\n");
- }
-
-
- if(vstfx->plugin->flags & 32 )
- {
- numParams = 0;
- }
-
- for(i=0; i < numParams; i++)
- {
- float val;
-
- pthread_mutex_lock( &vstfx->lock );
- val = vstfx->plugin->getParameter(vstfx->plugin, i );
- pthread_mutex_unlock( &vstfx->lock );
- fprintf( f, " <param index=\"%d\" value=\"%f\"/>\n", i, val );
- }
-
- if(vstfx->plugin->flags & 32 )
- {
- printf( "getting chunk...\n" );
- void * chunk;
- bytelen = vstfx_call_dispatcher(vstfx, 23, 0, 0, &chunk, 0 );
- printf( "got tha chunk..\n" );
- if( bytelen )
- {
- if( bytelen < 0 )
- {
- printf( "Chunke len < 0 !!! Not saving chunk.\n" );
- }
- else
- {
- //char *encoded = g_base64_encode( chunk, bytelen );
- //fprintf( f, " <chunk size=\"%d\">\n %s\n </chunk>\n", bytelen, encoded );
- //g_free( encoded );
- }
- }
- }
-
- fprintf( f, "</plugin_state>\n" );
- fclose( f );
- }
- else
- {
- printf ("Could not open state file\n");
- return false;
- }
- return true;
-}
-
-/*Set up a call to the plugins 'dispatcher' function*/
-
-int vstfx_call_dispatcher (VSTState* vstfx, int opcode, int index, int val, void *ptr, float opt)
-{
- pthread_mutex_lock (&vstfx->lock);
-
- /*Set up the opcode and parameters*/
-
- vstfx->dispatcher_opcode = opcode;
- vstfx->dispatcher_index = index;
- vstfx->dispatcher_val = val;
- vstfx->dispatcher_ptr = ptr;
- vstfx->dispatcher_opt = opt;
-
- /*Signal that we want the call to happen*/
-
- vstfx->dispatcher_wantcall = 1;
-
- /*Wait for the call to happen*/
-
- pthread_cond_wait (&vstfx->plugin_dispatcher_called, &vstfx->lock);
- pthread_mutex_unlock (&vstfx->lock);
-
- /*Return the result*/
-
- return vstfx->dispatcher_retval;
-}
projects / ardour.git / blobdiff