kit_sdl2_kmixer.c as of 2023-10-12

#include "../include/kit_sdl2/kit_kmixer.h"
#include "../_private/include/_kit_privmacro.h"
#include "../_private/include/_kit_coreAllPrivate.h"
#include "../_private/include/_kit_kmixerAllPrivate.h"




#if defined(_KIT_KMIXER_DEBUG) || defined(_KIT_ALL_DEBUG)
const SDL_bool kit_kmixerIsDebug=SDL_TRUE;
#else
const SDL_bool kit_kmixerIsDebug=SDL_FALSE;
#endif




struct _kit_kmixerGlobals_t _kit_kmixerGlobals;




int kit_kmixerInit(int numDeviceThreads){
  if(!_kit_coreGlobals.init){ SDL_SetError("core not initialized!"); return -1; }

  if(_kit_kmixerGlobals.init){ SDL_SetError("kmixer is initialized!"); return 1; }
  if(SDL_InitSubSystem(SDL_INIT_AUDIO)<0) return -2;

  _kit_kmixerGlobals.lock=SDL_CreateMutex();
  if(_kit_kmixerGlobals.lock == NULL) return -3;
  if(SDL_LockMutex(_kit_kmixerGlobals.lock)<0) return -4;

  if(numDeviceThreads>0) _kit_kmixerGlobals.numDeviceThreads = numDeviceThreads;
  else { //MAX is used here so 0 is functionally identical to -1
    int fraction = MAX(SDL_abs(numDeviceThreads),1);
    _kit_kmixerGlobals.numDeviceThreads = MAX(_kit_coreGlobals.cores/fraction,1);
  }

  _kit_kmixerGlobals.init = 1;
  if(SDL_UnlockMutex(_kit_kmixerGlobals.lock)<0) return -5;
  return 0;
}



int kit_kmixerQuit(){
  if(!_kit_kmixerGlobals.init){ SDL_SetError("kmixer not initialized!"); return 1; }
  if(SDL_LockMutex(_kit_kmixerGlobals.lock)<0) return -1;

  _kit_kmixerGlobals.init=0;
  if(SDL_UnlockMutex(_kit_kmixerGlobals.lock)<0) return -2;
  SDL_DestroyMutex(_kit_kmixerGlobals.lock);
  SDL_QuitSubSystem(SDL_INIT_AUDIO);
  return 0;
}