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#include "SoundBlock.h"
#include <memory.h>
#include <malloc.h>
SoundBlock::SoundBlock()
{
data = 0;
size = 0;
next = 0;
prev = 0;
start = 0;
used = 0;
}
SoundBlock::~SoundBlock()
{
if (data) free(data);
}
void SoundBlock::SetData(void *new_data, size_t new_size)
{
if (!data) data = malloc(new_size);
else if (new_size > size)
{
data = realloc(data, new_size);
if (!data) data = malloc(new_size);
else size = new_size;
}
if (data)
{
memcpy(data, new_data, new_size);
used = new_size;
}
else
{
used = 0;
}
start = 0;
}
void SoundBlock::Advance(size_t d)
{
used -= d;
start += d;
}
const void *SoundBlock::GetData()
{
return (char*)data + start;
}
size_t SoundBlock::GetDataSize()
{
return used;
}
size_t SoundBlock::Dump(void * out, size_t out_size)
{
const void * src = GetData();
if (out_size > used) out_size = used;
memcpy(out, src, out_size);
Advance(out_size);
return out_size;
}
void SoundBlock::Clear()
{
used = 0;
}
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