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#include "audio/nebu_SourceCopy.h"
#include <assert.h>
namespace Sound {
int SourceCopy::Mix(Uint8 *data, int len) {
if(_source->_buffer == NULL) return 0;
int volume = (int)(_source->GetVolume() * SDL_MIX_MAXVOLUME);
// fprintf(stderr, "playing copy sample at %d, position: %d\n", volume, _position);
int buffersize = _source->_buffersize;
Uint8* buffer = (Uint8*) _source->_buffer;
assert(len < buffersize);
if(len < buffersize - _position) {
SDL_MixAudio(data, buffer + _position, len, volume);
_position += len;
} else {
SDL_MixAudio(data, buffer + _position, buffersize - _position,
volume);
len -= buffersize - _position;
printf("end of sample reached!\n");
if(_loop) {
if(_loop != 255)
_loop--;
_position = 0;
SDL_MixAudio(data, buffer + _position, len, volume);
_position += len;
} else {
_isPlaying = 0;
}
}
return 1;
}
}
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