|
|
|
This thread is locked; no one can reply to it.
|
| Access Violation in al_flip_display with threads |
|
schollexpos
Member #16,751
October 2017
|
1void *windowThread(ALLEGRO_THREAD *thread, void* arg) {
2 void **arguments = (void**)arg;
3 ALLEGRO_DISPLAY *display;
4
5 DrawList *drawList = ((DrawList*)arguments[0]);
6 ALLEGRO_EVENT_QUEUE *eventQueue = ((ALLEGRO_EVENT_QUEUE*)arguments[1]);
7
8 display = al_create_display(1280, 720);
9 al_register_event_source(eventQueue, al_get_display_event_source(display));
10
11 while (!al_get_thread_should_stop(thread)) {
12 drawlist::List *drawbuffer = drawList->getScreenList();
13 while(drawbuffer->consume()) {
14 //...Draw Stuff...
15 }
16 drawList->ready(drawbuffer);
17 al_flip_display();
18 }
19
20 return nullptr;
21 }
Total suprise: The problem wasn't actually caused by allegro but instead by some other thing which had a buffer overflow. |
|
Erin Maus
Member #7,537
July 2006
 |
schollexpos said: Total suprise: The problem wasn't actually caused by allegro but instead by some other thing which had a buffer overflow. Ah, the best kind of bug. I remember many nights spent debugging those sort of errors... --- |
|
Edgar Reynaldo
Major Reynaldo
May 2007
 |
You'll want to be careful using a display in another thread like that. There are certain things you need to be aware of. You will only get hw accelerated drawing on bitmaps created, or converted on that thread when that display is current. So if you load or create bitmaps in another thread they must be converted to the proper format before you get acceleration. You can make sure they are loaded in the right format by 1) loading them in the same thread as the one that created the display, or 2) by cheating and setting the target bitmap to the backbuffer of the display created on that thread. That would make that thread and display current for loading and creation purposes. You would need to un set the current display for that thread when you were done then, and re-set it for the display thread. My Website! | EAGLE GUI Library Demos | My Deviant Art Gallery | Spiraloid Preview | A4 FontMaker | Skyline! (Missile Defense) Eagle and Allegro 5 binaries | Older Allegro 4 and 5 binaries | Allegro 5 compile guide |
|
|
