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livetrax/libs/fst/vstwin.c

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#include <stdio.h>
#include <jack/jack.h>
#include <jack/thread.h>
#include <libgen.h>
#include <windows.h>
#include <winnt.h>
#include <wine/exception.h>
#include <pthread.h>
#include <signal.h>
#include <glib.h>
#include "fst.h"
#include <X11/X.h>
#include <X11/Xlib.h>
extern char * strdup (const char *);
struct ERect{
short top;
short left;
short bottom;
short right;
};
static pthread_mutex_t plugin_mutex;
/** Head of linked list of all FSTs */
static FST* fst_first = NULL;
const char magic[] = "FST Plugin State v002";
DWORD gui_thread_id = 0;
static int gui_quit = 0;
#define DELAYED_WINDOW 1
static LRESULT WINAPI
my_window_proc (HWND w, UINT msg, WPARAM wp, LPARAM lp)
{
#if 0
if (msg != WM_TIMER) {
fst_error ("window callback handler, msg = 0x%x win=%p\n", msg, w);
}
#endif
switch (msg) {
case WM_KEYUP:
case WM_KEYDOWN:
break;
case WM_CLOSE:
/* we don't care about windows closing ... */
return 0;
break;
case WM_DESTROY:
case WM_NCDESTROY:
/* we don't care about windows being destroyed ... */
return 0;
break;
default:
break;
}
return DefWindowProcA (w, msg, wp, lp );
}
static FST*
fst_new ()
{
FST* fst = (FST*) calloc (1, sizeof (FST));
pthread_mutex_init (&fst->lock, NULL);
pthread_cond_init (&fst->window_status_change, NULL);
pthread_cond_init (&fst->plugin_dispatcher_called, NULL);
fst->want_program = -1;
fst->want_chunk = 0;
fst->current_program = -1;
fst->n_pending_keys = 0;
fst->has_editor = 0;
fst->program_set_without_editor = 0;
return fst;
}
static FSTHandle*
fst_handle_new ()
{
FSTHandle* fst = (FSTHandle*) calloc (1, sizeof (FSTHandle));
return fst;
}
void
maybe_set_program (FST* fst)
{
if (fst->want_program != -1) {
if (fst->vst_version >= 2) {
fst->plugin->dispatcher (fst->plugin, 67 /* effBeginSetProgram */, 0, 0, NULL, 0);
}
fst->plugin->dispatcher (fst->plugin, effSetProgram, 0, fst->want_program, NULL, 0);
if (fst->vst_version >= 2) {
fst->plugin->dispatcher (fst->plugin, 68 /* effEndSetProgram */, 0, 0, NULL, 0);
}
/* did it work? */
fst->current_program = fst->plugin->dispatcher (fst->plugin, 3, /* effGetProgram */ 0, 0, NULL, 0);
fst->want_program = -1;
}
if (fst->want_chunk == 1) {
fst->plugin->dispatcher (fst->plugin, 24 /* effSetChunk */, 1, fst->wanted_chunk_size, fst->wanted_chunk, 0);
fst->want_chunk = 0;
}
}
DWORD WINAPI gui_event_loop (LPVOID param)
{
MSG msg;
FST* fst;
HMODULE hInst;
HWND window;
int i;
gui_thread_id = GetCurrentThreadId ();
/* create a dummy window for timer events */
if ((hInst = GetModuleHandleA (NULL)) == NULL) {
fst_error ("can't get module handle");
return 1;
}
if ((window = CreateWindowExA (0, "FST", "dummy",
WS_OVERLAPPEDWINDOW & ~WS_THICKFRAME & ~WS_MAXIMIZEBOX,
9999, 9999,
1, 1,
NULL, NULL,
hInst,
NULL )) == NULL) {
fst_error ("cannot create dummy timer window");
}
if (!SetTimer (window, 1000, 20, NULL)) {
fst_error ("cannot set timer on dummy window");
}
while (!gui_quit) {
if (!GetMessageA (&msg, NULL, 0,0)) {
if (!gui_quit) {
fprintf (stderr, "QUIT message received by Windows GUI thread - ignored\n");
continue;
} else {
break;
}
}
TranslateMessage( &msg );
DispatchMessageA (&msg);
if (msg.message != WM_TIMER) {
continue;
}
pthread_mutex_lock (&plugin_mutex);
/* Do things that are appropriate for plugins which have open editor windows:
handle window creation requests, destroy requests,
and run idle callbacks
*/
again:
for (fst = fst_first; fst; fst = fst->next) {
pthread_mutex_lock (&fst->lock);
if (fst->has_editor == 1) {
if (fst->destroy) {
fprintf (stderr, "%s scheduled for destroy\n", fst->handle->name);
if (fst->window) {
fst->plugin->dispatcher( fst->plugin, effEditClose, 0, 0, NULL, 0.0 );
CloseWindow (fst->window);
fst->window = NULL;
fst->destroy = FALSE;
}
fst_event_loop_remove_plugin (fst);
fst->been_activated = FALSE;
pthread_cond_signal (&fst->window_status_change);
pthread_mutex_unlock (&fst->lock);
goto again;
}
if (fst->window == NULL) {
if (fst_create_editor (fst)) {
fst_error ("cannot create editor for plugin %s", fst->handle->name);
fst_event_loop_remove_plugin (fst);
pthread_cond_signal (&fst->window_status_change);
pthread_mutex_unlock (&fst->lock);
goto again;
} else {
/* condition/unlock: it was signalled & unlocked in fst_create_editor() */
}
}
if (fst->dispatcher_wantcall) {
fst->dispatcher_retval = fst->plugin->dispatcher( fst->plugin,
fst->dispatcher_opcode,
fst->dispatcher_index,
fst->dispatcher_val,
fst->dispatcher_ptr,
fst->dispatcher_opt );
fst->dispatcher_wantcall = 0;
pthread_cond_signal (&fst->plugin_dispatcher_called);
}
fst->plugin->dispatcher (fst->plugin, effEditIdle, 0, 0, NULL, 0);
if (fst->wantIdle) {
fst->plugin->dispatcher (fst->plugin, 53, 0, 0, NULL, 0);
}
/* Dispatch messages to send keypresses to the plugin */
for (i = 0; i < fst->n_pending_keys; ++i) {
/* I'm not quite sure what is going on here; it seems
`special' keys must be delivered with WM_KEYDOWN,
but that alphanumerics etc. must use WM_CHAR or
they will be ignored. Ours is not to reason why ...
*/
if (fst->pending_keys[i].special != 0) {
msg.message = WM_KEYDOWN;
msg.wParam = fst->pending_keys[i].special;
} else {
msg.message = WM_CHAR;
msg.wParam = fst->pending_keys[i].character;
}
msg.hwnd = GetFocus ();
msg.lParam = 0;
DispatchMessageA (&msg);
}
fst->n_pending_keys = 0;
/* See comment for maybe_set_program call below */
maybe_set_program (fst);
fst->want_program = -1;
fst->want_chunk = 0;
}
/* If we don't have an editor window yet, we still need to
* set up the program, otherwise when we load a plugin without
* opening its window it will sound wrong. However, it seems
* that if you don't also load the program after opening the GUI,
* the GUI does not reflect the program properly. So we'll not
* mark that we've done this (ie we won't set want_program to -1)
* and so it will be done again if and when the GUI arrives.
*/
if (fst->program_set_without_editor == 0) {
maybe_set_program (fst);
fst->program_set_without_editor = 1;
}
pthread_mutex_unlock (&fst->lock);
}
pthread_mutex_unlock (&plugin_mutex);
}
return 0;
}
int
fst_init (void* possible_hmodule)
{
WNDCLASSEX wclass;
HMODULE hInst;
if (possible_hmodule) {
hInst = (HMODULE) possible_hmodule;
} else if ((hInst = GetModuleHandleA (NULL)) == NULL) {
fst_error ("can't get module handle");
return -1;
}
wclass.cbSize = sizeof(WNDCLASSEX);
wclass.style = 0;
wclass.lpfnWndProc = my_window_proc;
wclass.cbClsExtra = 0;
wclass.cbWndExtra = 0;
wclass.hInstance = hInst;
wclass.hIcon = LoadIcon(hInst, "FST");
wclass.hCursor = LoadCursor(0, IDI_APPLICATION);
// wclass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
wclass.lpszMenuName = "MENU_FST";
wclass.lpszClassName = "FST";
wclass.hIconSm = 0;
if (!RegisterClassExA(&wclass)){
printf( "Class register failed :(\n" );
return -1;
}
fst_error ("Startup win32 GUI thread\n");
if (CreateThread (NULL, 0, gui_event_loop, NULL, 0, NULL) == NULL) {
fst_error ("could not create new thread proxy");
return -1;
}
#ifdef HAVE_JACK_SET_THREAD_CREATOR
jack_set_thread_creator (wine_pthread_create);
#endif
return 0;
}
void
fst_exit ()
{
gui_quit = 1;
PostQuitMessage (0);
}
int
fst_run_editor (FST* fst)
{
/* wait for the plugin editor window to be created (or not) */
pthread_mutex_lock (&fst->lock);
fst->has_editor = 1;
if (!fst->window) {
pthread_cond_wait (&fst->window_status_change, &fst->lock);
}
pthread_mutex_unlock (&fst->lock);
if (!fst->window) {
return -1;
}
return 0;
}
int
fst_call_dispatcher (FST *fst, int opcode, int index, int val, void *ptr, float opt)
{
pthread_mutex_lock (&fst->lock);
fst->dispatcher_opcode = opcode;
fst->dispatcher_index = index;
fst->dispatcher_val = val;
fst->dispatcher_ptr = ptr;
fst->dispatcher_opt = opt;
fst->dispatcher_wantcall = 1;
pthread_cond_wait (&fst->plugin_dispatcher_called, &fst->lock);
pthread_mutex_unlock (&fst->lock);
return fst->dispatcher_retval;
}
int
fst_create_editor (FST* fst)
{
HMODULE hInst;
HWND window;
struct ERect* er;
/* "guard point" to trap errors that occur during plugin loading */
/* Note: fst->lock is held while this function is called */
if (!(fst->plugin->flags & effFlagsHasEditor)) {
fst_error ("Plugin \"%s\" has no editor", fst->handle->name);
return -1;
}
if ((hInst = GetModuleHandleA (NULL)) == NULL) {
fst_error ("can't get module handle");
return 1;
}
// if ((window = CreateWindowExA (WS_EX_TOOLWINDOW | WS_EX_TRAYWINDOW, "FST", fst->handle->name,
if ((window = CreateWindowExA (0, "FST", fst->handle->name,
(WS_OVERLAPPEDWINDOW & ~WS_THICKFRAME & ~WS_MAXIMIZEBOX),
// (WS_OVERLAPPEDWINDOW & ~WS_MAXIMIZEBOX),
9999,9999,1,1,
// CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL,
hInst,
NULL)) == NULL) {
fst_error ("cannot create editor window");
return 1;
}
if (!SetPropA (window, "fst_ptr", fst)) {
fst_error ("cannot set fst_ptr on window");
}
fst->window = window;
// fst->xid = (int) GetPropA (window, "__wine_x11_whole_window");
//printf( "effEditOpen......\n" );
fst->plugin->dispatcher (fst->plugin, effEditOpen, 0, 0, fst->window, 0 );
fst->plugin->dispatcher (fst->plugin, effEditGetRect, 0, 0, &er, 0 );
fst->width = er->right-er->left;
fst->height = er->bottom-er->top;
//printf( "get rect ses... %d,%d\n", fst->width, fst->height );
//SetWindowPos (fst->window, 0, 9999, 9999, er->right-er->left+8, er->bottom-er->top+26, 0);
SetWindowPos (fst->window, 0, 9999, 9999, 2, 2, 0);
ShowWindow (fst->window, SW_SHOWNA);
//SetWindowPos (fst->window, 0, 0, 0, er->right-er->left+8, er->bottom-er->top+26, SWP_NOMOVE|SWP_NOZORDER);
fst->xid = (int) GetPropA (window, "__wine_x11_whole_window");
fst->been_activated = TRUE;
pthread_cond_signal (&fst->window_status_change);
pthread_mutex_unlock (&fst->lock);
return 0;
}
void
fst_move_window_into_view (FST* fst)
{
if (fst->window) {
SetWindowPos (fst->window, 0, 0, 0, fst->width, fst->height+24, 0);
ShowWindow (fst->window, SW_SHOWNA);
}
}
void
fst_destroy_editor (FST* fst)
{
pthread_mutex_lock (&fst->lock);
if (fst->window) {
fprintf (stderr, "mark %s for destroy\n", fst->handle->name);
fst->destroy = TRUE;
//if (!PostThreadMessageA (gui_thread_id, WM_USER, 0, 0)) {
//if (!PostThreadMessageA (gui_thread_id, WM_QUIT, 0, 0)) {
// fst_error ("could not post message to gui thread");
//}
pthread_cond_wait (&fst->window_status_change, &fst->lock);
fprintf (stderr, "%s editor destroyed\n", fst->handle->name);
fst->has_editor = 0;
}
pthread_mutex_unlock (&fst->lock);
}
void
fst_event_loop_remove_plugin (FST* fst)
{
FST* p;
FST* prev;
for (p = fst_first, prev = NULL; p->next; prev = p, p = p->next) {
if (p == fst) {
if (prev) {
prev->next = p->next;
}
}
}
if (fst_first == fst) {
fst_first = fst_first->next;
}
}
HMODULE
fst_load_vst_library(const char * path)
{
HMODULE dll;
char * full_path;
char * envdup;
char * vst_path;
size_t len1;
size_t len2;
if ((dll = LoadLibraryA (path)) != NULL) {
return dll;
}
envdup = getenv ("VST_PATH");
if (envdup == NULL) {
return NULL;
}
envdup = strdup (envdup);
if (envdup == NULL) {
fst_error ("strdup failed");
return NULL;
}
len2 = strlen(path);
vst_path = strtok (envdup, ":");
while (vst_path != NULL) {
fst_error ("\"%s\"", vst_path);
len1 = strlen(vst_path);
full_path = malloc (len1 + 1 + len2 + 1);
memcpy(full_path, vst_path, len1);
full_path[len1] = '/';
memcpy(full_path + len1 + 1, path, len2);
full_path[len1 + 1 + len2] = '\0';
if ((dll = LoadLibraryA (full_path)) != NULL) {
break;
}
vst_path = strtok (NULL, ":");
}
free(envdup);
return dll;
}
FSTHandle*
fst_load (const char *path)
{
char* buf;
FSTHandle* fhandle;
char* period;
fhandle = fst_handle_new ();
// XXX: Would be nice to find the correct call for this.
// if the user does not configure Z: to be / we are doomed :(
if (strstr (path, ".dll") == NULL) {
buf = (char *) malloc (strlen (path) + 7);
if( path[0] == '/' ) {
sprintf (buf, "Z:%s.dll", path);
} else {
sprintf (buf, "%s.dll", path);
}
fhandle->nameptr = strdup (path);
} else {
buf = (char *) malloc (strlen (path) + 3);
if( path[0] == '/' ) {
sprintf (buf, "Z:%s", path);
} else {
sprintf (buf, "%s", path);
}
fhandle->nameptr = strdup (path);
}
fhandle->name = basename (fhandle->nameptr);
/* strip off .dll */
if ((period = strrchr (fhandle->name, '.')) != NULL) {
*period = '\0';
}
if ((fhandle->dll = fst_load_vst_library (buf)) == NULL) {
fst_unload (fhandle);
return NULL;
}
if ((fhandle->main_entry = (main_entry_t) GetProcAddress (fhandle->dll, "main")) == NULL) {
fst_unload (fhandle);
return NULL;
}
return fhandle;
}
int
fst_unload (FSTHandle* fhandle)
{
if (fhandle->plugincnt) {
return -1;
}
if (fhandle->dll) {
FreeLibrary (fhandle->dll);
fhandle->dll = NULL;
}
if (fhandle->nameptr) {
free (fhandle->nameptr);
fhandle->name = NULL;
}
free (fhandle);
return 0;
}
FST*
fst_instantiate (FSTHandle* fhandle, audioMasterCallback amc, void* userptr)
{
FST* fst = fst_new ();
pthread_mutex_lock (&plugin_mutex);
if (fst_first == NULL) {
fst_first = fst;
} else {
FST* p = fst_first;
while (p->next) {
p = p->next;
}
p->next = fst;
}
pthread_mutex_unlock (&plugin_mutex);
if( fhandle == NULL ) {
fst_error( "the handle was NULL\n" );
return NULL;
}
if ((fst->plugin = fhandle->main_entry (amc)) == NULL) {
fst_error ("%s could not be instantiated\n", fhandle->name);
free (fst);
return NULL;
}
fst->handle = fhandle;
fst->plugin->user = userptr;
if (fst->plugin->magic != kEffectMagic) {
fst_error ("%s is not a VST plugin\n", fhandle->name);
free (fst);
return NULL;
}
fst->plugin->dispatcher (fst->plugin, effOpen, 0, 0, 0, 0);
//fst->plugin->dispatcher (fst->plugin, effMainsChanged, 0, 0, NULL, 0);
fst->vst_version = fst->plugin->dispatcher (fst->plugin, effGetVstVersion, 0, 0, 0, 0);
fst->handle->plugincnt++;
fst->wantIdle = 0;
return fst;
}
void
fst_close (FST* fst)
{
fst_destroy_editor (fst);
fst->plugin->dispatcher (fst->plugin, effMainsChanged, 0, 0, NULL, 0);
fst->plugin->dispatcher (fst->plugin, effClose, 0, 0, 0, 0);
if (fst->handle->plugincnt) {
--fst->handle->plugincnt;
}
}
int
fst_get_XID (FST* fst)
{
return fst->xid;
}
float htonf (float v)
{
float result;
char * fin = (char*)&v;
char * fout = (char*)&result;
fout[0] = fin[3];
fout[1] = fin[2];
fout[2] = fin[1];
fout[3] = fin[0];
return result;
}
#if 0
int fst_load_state (FST * fst, char * filename)
{
FILE * f = fopen (filename, "rb");
if (f) {
char testMagic[sizeof (magic)];
fread (&testMagic, sizeof (magic), 1, f);
if (strcmp (testMagic, magic)) {
printf ("File corrupt\n");
return FALSE;
}
char productString[64];
char vendorString[64];
char effectName[64];
char testString[64];
unsigned length;
int success;
fread (&length, sizeof (unsigned), 1, f);
length = htonl (length);
fread (productString, length, 1, f);
productString[length] = 0;
printf ("Product string: %s\n", productString);
success = fst_call_dispatcher( fst, effGetProductString, 0, 0, testString, 0 );
if (success == 1) {
if (strcmp (testString, productString) != 0) {
printf ("Product string mismatch! Plugin has: %s\n", testString);
fclose (f);
return FALSE;
}
} else if (length != 0) {
printf ("Product string mismatch! Plugin has none.\n", testString);
fclose (f);
return FALSE;
}
fread (&length, sizeof (unsigned), 1, f);
length = htonl (length);
fread (effectName, length, 1, f);
effectName[length] = 0;
printf ("Effect name: %s\n", effectName);
success = fst_call_dispatcher( fst, effGetEffectName, 0, 0, testString, 0 );
if (success == 1) {
if (strcmp (testString, effectName) != 0) {
printf ("Effect name mismatch! Plugin has: %s\n", testString);
fclose (f);
return FALSE;
}
} else if (length != 0) {
printf ("Effect name mismatch! Plugin has none.\n", testString);
fclose (f);
return FALSE;
}
fread (&length, sizeof (unsigned), 1, f);
length = htonl (length);
fread (vendorString, length, 1, f);
vendorString[length] = 0;
printf ("Vendor string: %s\n", vendorString);
success = fst_call_dispatcher( fst, effGetVendorString, 0, 0, testString, 0 );
if (success == 1) {
if (strcmp (testString, vendorString) != 0) {
printf ("Vendor string mismatch! Plugin has: %s\n", testString);
fclose (f);
return FALSE;
}
} else if (length != 0) {
printf ("Vendor string mismatch! Plugin has none.\n", testString);
fclose (f);
return FALSE;
}
int numParam;
unsigned i;
fread (&numParam, sizeof (int), 1, f);
numParam = htonl (numParam);
for (i = 0; i < numParam; ++i) {
float val;
fread (&val, sizeof (float), 1, f);
val = htonf (val);
pthread_mutex_lock( &fst->lock );
fst->plugin->setParameter( fst->plugin, i, val );
pthread_mutex_unlock( &fst->lock );
}
int bytelen;
fread (&bytelen, sizeof (int), 1, f);
bytelen = htonl (bytelen);
if (bytelen) {
char * buf = malloc (bytelen);
fread (buf, bytelen, 1, f);
fst_call_dispatcher( fst, 24, 0, bytelen, buf, 0 );
free (buf);
}
} else {
printf ("Could not open state file\n");
return FALSE;
}
return TRUE;
}
#endif
int fst_save_state (FST * fst, char * filename)
{
FILE * f = fopen (filename, "wb");
int j;
if (f) {
int bytelen;
int numParams = fst->plugin->numParams;
char productString[64];
char effectName[64];
char vendorString[64];
int success;
// write header
fprintf( f, "<plugin_state>\n" );
success = fst_call_dispatcher( fst, effGetProductString, 0, 0, productString, 0 );
if( success == 1 ) {
fprintf (f, " <check field=\"productString\" value=\"%s\"/>\n", productString);
} else {
printf ("No product string\n");
}
success = fst_call_dispatcher( fst, 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 = fst_call_dispatcher( fst, 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( fst->plugin->flags & 32 ) {
numParams = 0;
}
for (j = 0; j < numParams; ++j) {
float val;
pthread_mutex_lock( &fst->lock );
val = fst->plugin->getParameter (fst->plugin, j);
pthread_mutex_unlock( &fst->lock );
fprintf( f, " <param index=\"%d\" value=\"%f\"/>\n", j, val );
}
if( fst->plugin->flags & 32 ) {
printf( "getting chunk...\n" );
void * chunk;
bytelen = fst_call_dispatcher( fst, 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;
}