Topics

1

Window / Window doesn't have an alpha channel

« on: August 10, 2012, 08:08:07 am »

Hi !

I have a problem with the window creation with SFML. Here's how a create my window :
  sf::Window(sf::VideoMode(640, 480, 32),
      "OpenGL", sf::Style::Default,
      sf::ContextSettings(32, 0, 0, 2, 1)),

Even if I create my window with 32 bpp, it seems like the window does not have an alpha channel. I checked with gDEBugger which tells me that GL_ALPHA_BITS is 0. The consequence is that when I do a glReadPixels, I can't get the alpha channel.

Btw, blending with GL_BLEND works fine and I'm using SFML2 (revision 5706111) on Linux.

Any help on that?

2

Audio / Problems with sf::Music

« on: May 01, 2010, 08:37:24 pm »

Hi,

I got some huge problems with sf::Music. I tried using the code given in the SFML Audio tutorial and I encoded an ogg file with oggenc.

The result is that the program uses 100% of my CPU. I tried commenting the line Music.Play(), it doesn't change anything, the process still uses 100% of my cpu.
I have another problem that may be related, the music stops playing after a while (sometime it happens just a few seconds after it started) but it seems that Music.GetStatus() still returns Playing. Also, the program won't exit, even if I wait until the "end" of the music. I never managed to have the file played until the end.

Here is the output of the test :
g++ music.cpp -lsfml-audio -lsfml-system && ./a.out
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
music.ogg :
 278.733 sec
 44100 samples / sec
 2 channels
Playing...

I don't think the bt_audio things are related to my problem.

I'm using Ubuntu 9.10 with SFML 1.6. Any help would be appreciated.