winamp/Src/Plugins/Output/out_ds/SoundBlockList.cpp
2024-09-24 14:54:57 +02:00

130 lines
2.0 KiB
C++

#include "SoundBlockList.h"
#include <memory.h>
void SoundBlockList::AddBlock(void * data, size_t size)
{
SoundBlock * b = remove(b_free);
if (!b) b=new SoundBlock;
b->SetData(data,size);
mount2(b_first,b,b_last);
data_buffered+=size;
#ifdef USE_LOG
char boo[256] = {0};
wsprintf(boo,"AddBlock: %u, +%u",data_buffered,size);
log_write(boo);
#endif
}
size_t SoundBlockList::DumpBlocks(void * out1, size_t size1)
{
char * p1=(char*)out1;
size_t rv=0;
while(b_last && size1)
{
if (size1)
{
size_t d=b_last->Dump(p1,size1);
p1+=d;
size1-=d;
rv+=d;
}
if (b_last->GetDataSize()==0)
{
mount(b_free,removelast(b_first,b_last));
}
}
if (size1) memset(p1,silence_filler,size1);
data_buffered-=rv;
return rv;
}
void SoundBlockList::Reset()
{
if (b_first)
{
connect(b_last,b_free);
b_free=b_first;
}
b_first=0;
b_last=0;
data_buffered=0;
}
SoundBlockList::~SoundBlockList()
{
SoundBlock * p;
while(b_first)
{
p=b_first;
b_first=b_first->next;
delete p;
}
while(b_free)
{
p=b_free;
b_free=b_free->next;
delete p;
}
}
size_t SoundBlockList::DataSize()
{
return data_buffered;
}
SoundBlockList::SoundBlockList(int sil)
{
b_first = 0;b_last = 0;b_free = 0;data_buffered = 0;silence_filler = sil;
}
void SoundBlockList::advance(SoundBlock * &b)
{
b = b->next;
}
void SoundBlockList::goback(SoundBlock * &b)
{
b = b->prev;
}
void SoundBlockList::mount(SoundBlock * &first, SoundBlock * add)
{
connect(0, add);
connect(add, first);
first = add;
}
void SoundBlockList::mount2(SoundBlock * &first, SoundBlock * add, SoundBlock * &last)
{
mount(first, add);
if (!last) last = add;
}
SoundBlock *SoundBlockList::remove(SoundBlock * &list)
{
SoundBlock * b = list;
if (b)
{
advance(list);
connect(0, list);
connect(b, 0);
}
return b;
}
SoundBlock *SoundBlockList::removelast(SoundBlock * &first, SoundBlock * &last)
{
SoundBlock * b = last;
if (b)
{
goback(last);
connect(last, 0);
connect(0, b);
if (!last) first = 0;
}
return b;
}