SDL_image 1.2.4: Defines

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# 6. Defines

MIX_MAJOR_VERSION
  `1`
  SDL_mixer library major number at compilation time
MIX_MINOR_VERSION
  `2`
  SDL_mixer library minor number at compilation time
MIX_PATCHLEVEL
  `4`
  SDL_mixer library patch level at compilation time
MIX_CHANNELS
  `8`
  The default mixer has this many simultaneous mixing channels after the first call to `Mix_OpenAudio`.
MIX_DEFAULT_FREQUENCY
  `22050`
  Good default sample rate in Hz (samples per second) for PC sound cards.
MIX_DEFAULT_FORMAT
  `AUDIO_S16SYS`
  The suggested default is signed 16bit samples in host byte order.
MIX_DEFAULT_CHANNELS
  `2`
  Stereo sound is a good default.
MIX_MAX_VOLUME
  `128`
  Maximum value for any volume setting.
  This is currently the same as SDL_MIX_MAXVOLUME.
MIX_CHANNEL_POST
  `-2`
  This is the channel number used for post processing effects.
MIX_EFFECTSMAXSPEED
  `"MIX_EFFECTSMAXSPEED"`
  A convience definition for the string name of the environment variable to define when you desire the internal effects to sacrifice quality and/or RAM for speed. The environment variable must be set (else nonexisting) before `Mix_OpenAudio` is called for the setting to take effect.

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