mirror of
https://github.com/vcmi/vcmi.git
synced 2024-12-28 23:06:24 +02:00
41 lines
746 B
C++
41 lines
746 B
C++
#include "StdInc.h"
|
|
#include "CMemoryStream.h"
|
|
|
|
CMemoryStream::CMemoryStream(const ui8 * data, si64 size) :
|
|
data(data), size(size), position(0)
|
|
{
|
|
|
|
}
|
|
|
|
si64 CMemoryStream::read(ui8 * data, si64 size)
|
|
{
|
|
si64 toRead = std::min(this->size - tell(), size);
|
|
std::copy(this->data + position, this->data + position + toRead, data);
|
|
position += size;
|
|
return toRead;
|
|
}
|
|
|
|
si64 CMemoryStream::seek(si64 position)
|
|
{
|
|
si64 origin = tell();
|
|
this->position = std::min(position, size);
|
|
return tell() - origin;
|
|
}
|
|
|
|
si64 CMemoryStream::tell()
|
|
{
|
|
return this->position;
|
|
}
|
|
|
|
si64 CMemoryStream::skip(si64 delta)
|
|
{
|
|
si64 origin = tell();
|
|
this->position += std::min(size - origin, delta);
|
|
return tell() - origin;
|
|
}
|
|
|
|
si64 CMemoryStream::getSize()
|
|
{
|
|
return size;
|
|
}
|