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| Setup OpenGL version |
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I-am-bigov
Member #16,909
October 2018
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Hi all! I try to init display with OpenGL 3.2: 1void window_create(void)
2{
3 if(!al_init()) ERR("failed to initialize allegro!\n");
4
5 uint32_t version = al_get_allegro_version();
6 unsigned int major = version >> 24;
7 unsigned int minor = (version >> 16) & 255;
8 unsigned int revision = (version >> 8) & 255;
9 unsigned int release = version & 255;
10 std::cout << "Allegro version: "
11 << major << "." << minor << "." << revision << "." << release << "\n";
12
13 al_install_keyboard();
14
15 timer = al_create_timer(1.0 / 30.0);
16 queue = al_create_event_queue();
17
18 al_set_new_display_flags(ALLEGRO_OPENGL |
19 ALLEGRO_WINDOWED | ALLEGRO_RESIZABLE);
20 al_set_new_display_option(ALLEGRO_OPENGL_MAJOR_VERSION, 3, ALLEGRO_REQUIRE);
21 al_set_new_display_option(ALLEGRO_OPENGL_MINOR_VERSION, 2, ALLEGRO_REQUIRE);
22 display = al_create_display(640, 480);
23 if(nullptr == display) ERR ("failed to create display!\n");
24 al_set_current_opengl_context(display);
25
26 al_register_event_source(queue, al_get_keyboard_event_source());
27 al_register_event_source(queue, al_get_timer_event_source(timer));
28
29 std::cout<<"al opengl version: "
30 << std::hex << al_get_opengl_version() << std::endl;
31
32 std::cout << "disp options: OPENGL_MAJOR = "
33 << al_get_display_option(display, ALLEGRO_OPENGL_MAJOR_VERSION) << ", "
34 << "OPENGL_MINOR = "
35 << al_get_display_option(display, ALLEGRO_OPENGL_MINOR_VERSION) << "\n";
36
37 return;
38}
But I see that version 3.2 did not load. I see: Allegro version: 5.2.4.1 al opengl version: 4060000 disp options: OPENGL_MAJOR = 0, OPENGL_MINOR = 0 --- OpenGL Version 4 6 loaded What am I doing wrong? I need for OpenGL version 3.2, not 4.6.
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