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#include "gstmacos.h"
#include <Cocoa/Cocoa.h>
typedef struct _ThreadArgs ThreadArgs;
struct _ThreadArgs {
void* main_func;
int argc;
char **argv;
gpointer user_data;
gboolean is_simple;
};
int
gst_thread_func (ThreadArgs *args)
{
int ret;
if (args->is_simple) {
ret = ((GstMainFuncSimple) args->main_func) (args->user_data);
} else {
ret = ((GstMainFunc) args->main_func) (args->argc, args->argv, args->user_data);
}
[NSApp terminate: nil];
return ret;
}
int
run_main_with_nsapp (ThreadArgs args)
{
GThread *gst_thread;
[NSApplication sharedApplication];
if ([NSApp activationPolicy] == NSApplicationActivationPolicyProhibited) {
[NSApp setActivationPolicy:NSApplicationActivationPolicyAccessory];
}
gst_thread = g_thread_new ("macos-gst-thread", (GThreadFunc) gst_thread_func, &args);
[NSApp run];
return GPOINTER_TO_INT (g_thread_join (gst_thread));
}
/**
* gst_macos_main:
* @main_func: (scope async): pointer to the main function to be called
* @argc: the amount of arguments passed in @argv
* @argv: (array length=argc): an array of arguments to be passed to the main function
* @user_data: (nullable): user data to be passed to the main function
*
* Starts an NSApplication on the main thread before calling
* the provided main() function on a secondary thread.
*
* This ensures that GStreamer can correctly perform actions
* such as creating a GL window, which require a Cocoa main loop
* to be running on the main thread.
*
* Do not call this function more than once - especially while
* another one is still running - as that will cause unpredictable
* behaviour and most likely completely fail.
*
* Returns: the return value of the provided main_func
*
* Since: 1.22
*/
int
gst_macos_main (GstMainFunc main_func, int argc, char **argv, gpointer user_data)
{
ThreadArgs args;
args.argc = argc;
args.argv = argv;
args.main_func = main_func;
args.user_data = user_data;
args.is_simple = FALSE;
return run_main_with_nsapp (args);
}
/**
* gst_macos_main_simple:
* @main_func: (scope async): pointer to the main function to be called
* @user_data: (nullable): user data to be passed to the main function
*
* Simplified variant of gst_macos_main(), meant to be used with bindings
* for languages which do not have to pass argc and argv like C does.
* See gst_macos_main() for a more detailed description.
*
* Returns: the return value of the provided main_func
*
* Since: 1.22
*/
int
gst_macos_main_simple (GstMainFuncSimple main_func, gpointer user_data)
{
ThreadArgs args;
args.argc = 0;
args.argv = NULL;
args.main_func = main_func;
args.user_data = user_data;
args.is_simple = TRUE;
return run_main_with_nsapp (args);
}
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