Hi, I'm working with actor preloader i.e. main-loop is running and
another thread loads actors. I'm not even plan to add these on stage,
just load them.
In this example application I add them to stage, because now it forms
complete application.
If in thread I make clutterRectangle, it works.
If in thread I try to make clutterTexture from image file, I got
"Failed to create COGL texture".
Is this bug, or how I should make this working?
#include <clutter/clutter.h>
ClutterActor *stage;
void *start_preloader(int parameter) {
g_usleep( 1 * G_USEC_PER_SEC );
ClutterActor *actor;
if (parameter==2)
{
GError* error = NULL;
if (!(actor = clutter_texture_new_from_file("image.png", &error))) {
fprintf(stderr, "%s\n", error->message);
g_error_free(error);
}
}
else
{
actor =clutter_rectangle_new();
clutter_actor_set_size (actor, 400, 80);
clutter_actor_set_position (actor, 10, 10);
clutter_rectangle_set_border_width(CLUTTER_RECTANGLE(actor),10);
}
clutter_container_add_actor(CLUTTER_CONTAINER(stage), actor);
pthread_exit(NULL);
}
int main (int argc, char *argv[]) {
ClutterActor *actor;
clutter_init (&argc, &argv);
stage = clutter_stage_get_default ();
actor =clutter_rectangle_new();
clutter_actor_set_size (actor, 400, 400);
clutter_actor_set_position (actor, 40, 40);
clutter_rectangle_set_border_width(CLUTTER_RECTANGLE(actor),16);
clutter_container_add_actor(CLUTTER_CONTAINER(stage), actor);
clutter_actor_show_all(stage);
pthread_t preloader_thread;
pthread_create(&preloader_thread, NULL, start_preloader, argc);
clutter_main();
return 0;
}
Usage:
copy any png image to working directory and rename it to image.png
compile: gcc `pkg-config --libs --cflags clutter-1.0` main.c
./a.out
Main loop starts, then preloader waits one second. Move mouse over
stage, so it is refreshed and then second rectangle will be visible.
./a.out BUG
Main loop starts, one second later preloader tries to open png file
and gives error: "Failed to create COGL texture" and actor is NULL.
This error message is coming from clutter-texture:1976
(clutter_texture_set_from_file), but I do not understand why.
-Aapo Rantalainen
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