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#include "audio/nebu_SourceSample.h"
#include <assert.h>
#include <string.h>
namespace Sound {
SourceSample::SourceSample(System *system) {
_system = system;
_buffer = NULL;
_buffersize = 8192;
_position = 0;
_decoded = 0;
}
SourceSample::~SourceSample() {
// fprintf(stderr, "nebu_SourceSample destructor called\n");
if(_buffer)
delete _buffer;
// Source::~Source();
}
void SourceSample::Load(char *filename) {
#define BUFSIZE 1024 * 1024
SDL_RWops *rwops;
rwops = SDL_RWFromFile(filename, "rb");
Sound_Sample *sample = Sound_NewSample(rwops, NULL,
_system->GetAudioInfo(),
_buffersize );
if(sample == NULL) {
fprintf(stderr, "[error] failed loading sample from '%s': %s\n",
filename, Sound_GetError());
return;
}
Sound_DecodeAll(sample);
_buffersize = sample->buffer_size;
_buffer = new Uint8[_buffersize];
memcpy(_buffer, sample->buffer, _buffersize);
Sound_FreeSample(sample);
// fprintf(stderr, "done decoding sample '%s'\n", filename);
_position = 0;
}
int SourceSample::Mix(Uint8 *data, int len) {
if(_buffer == NULL)
return 0;
int volume = (int)(_volume * SDL_MIX_MAXVOLUME);
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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