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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdarg.h>
#include <stdio.h>
#include <SDL.h>
#include <lo/lo.h>
#include "osc_graphics.h"
#include "layer.h"
#include "osc_server.h"
/*
* liblo callbacks
*/
extern "C" {
static void error_handler(int num, const char *msg, const char *path);
static int generic_handler(const char *path, const char *types, lo_arg **argv,
int argc, void *data, void *user_data);
static int dtor_generic_handler(const char *path, const char *types,
lo_arg **argv, int argc,
void *data, void *user_data);
static int ctor_generic_handler(const char *path, const char *types,
lo_arg **argv, int argc,
void *data, void *user_data);
static int method_generic_handler(const char *path, const char *types,
lo_arg **argv, int argc,
void *data, void *user_data);
}
extern LayerList layers;
static void
error_handler(int num, const char *msg, const char *path)
{
fprintf(stderr, "liblo server error %d in path %s: %s\n",
num, path, msg);
}
/* catch any incoming messages and display them. returning 1 means that the
* message has not been fully handled and the server should try other methods */
static int
generic_handler(const char *path, const char *types, lo_arg **argv,
int argc, void *data,
void *user_data __attribute__((unused)))
{
if (!config_dump_osc)
return 1;
printf("path: <%s>\n", path);
for (int i = 0; i < argc; i++) {
printf("arg %d '%c' ", i, types[i]);
lo_arg_pp((lo_type)types[i], argv[i]);
printf("\n");
}
printf("\n");
return 1;
}
void
OSCServer::open(const char *port)
{
server = lo_server_thread_new(port, error_handler);
add_method(NULL, generic_handler, NULL, NULL);
}
void
OSCServer::add_method_v(MethodHandlerId **hnd, const char *types,
lo_method_handler handler, void *data,
const char *fmt, va_list ap)
{
char buf[255];
if (fmt)
vsnprintf(buf, sizeof(buf), fmt, ap);
lo_server_thread_add_method(server, fmt ? buf : NULL, types,
handler, data);
if (hnd)
*hnd = new MethodHandlerId(types, buf, data);
}
void
OSCServer::del_method(const char *types, const char *fmt, ...)
{
char buf[255];
va_list ap;
va_start(ap, fmt);
vsnprintf(buf, sizeof(buf), fmt, ap);
lo_server_thread_del_method(server, buf, types);
va_end(ap);
}
static int
dtor_generic_handler(const char *path,
const char *types __attribute__((unused)),
lo_arg **argv __attribute__((unused)),
int argc __attribute__((unused)),
void *data __attribute__((unused)),
void *user_data)
{
Layer *layer = (Layer *)user_data;
layers.delete_layer(layer);
osc_server.del_method("", "%s", path);
return 0;
}
static int
ctor_generic_handler(const char *path __attribute__((unused)),
const char *types __attribute__((unused)),
lo_arg **argv, int argc,
void *data __attribute__((unused)),
void *user_data)
{
OSCServer::CtorHandlerCb const_cb = (OSCServer::CtorHandlerCb)user_data;
Layer *layer;
SDL_Rect geo = {
(Sint16)argv[2]->i, (Sint16)argv[3]->i,
(Uint16)argv[4]->i, (Uint16)argv[5]->i
};
layer = const_cb(&argv[1]->s, geo, argv[6]->f, argv + 7);
layers.insert(argv[0]->i, layer);
osc_server.add_method("", dtor_generic_handler, layer,
"/layer/%s/delete", layer->name);
return 0;
}
void
OSCServer::register_layer(const char *name, const char *types,
CtorHandlerCb ctor_cb)
{
char buf[255];
snprintf(buf, sizeof(buf), "%s%s", NEW_LAYER_TYPES, types);
add_method(buf, ctor_generic_handler, (void *)ctor_cb,
"/layer/new/%s", name);
}
struct OscMethodDefaultCtx {
Layer *layer;
OSCServer::MethodHandlerCb method_cb;
};
static int
method_generic_handler(const char *path __attribute__((unused)),
const char *types __attribute__((unused)),
lo_arg **argv, int argc,
void *data __attribute__((unused)),
void *user_data)
{
OscMethodDefaultCtx *ctx = (OscMethodDefaultCtx *)user_data;
ctx->layer->lock();
ctx->method_cb(ctx->layer, argv);
ctx->layer->unlock();
return 0;
}
OSCServer::MethodHandlerId *
OSCServer::register_method(Layer *layer, const char *method, const char *types,
MethodHandlerCb method_cb)
{
MethodHandlerId *hnd;
OscMethodDefaultCtx *ctx = new OscMethodDefaultCtx;
ctx->layer = layer;
ctx->method_cb = method_cb;
add_method(&hnd, types, method_generic_handler, ctx,
"/layer/%s/%s", layer->name, method);
return hnd;
}
void
OSCServer::unregister_method(MethodHandlerId *hnd)
{
delete (OscMethodDefaultCtx *)hnd->data;
del_method(hnd);
}
OSCServer::~OSCServer()
{
if (server)
lo_server_thread_free(server);
}
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