48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
|
// Copyright 2020 yuzu Emulator Project
|
||
|
|
// Licensed under GPLv2 or any later version
|
||
|
|
// Refer to the license.txt file included.
|
||
|
|
|
||
|
|
#include <stdexcept>
|
||
|
|
#include "common/common_types.h"
|
||
|
|
#include "common/stream.h"
|
||
|
|
|
||
|
|
namespace Common {
|
||
|
|
|
||
|
|
Stream::Stream() = default;
|
||
|
|
Stream::~Stream() = default;
|
||
|
|
|
||
|
|
void Stream::Seek(s32 offset, SeekOrigin origin) {
|
||
|
|
if (origin == SeekOrigin::SetOrigin) {
|
||
|
|
if (offset < 0) {
|
||
|
|
position = 0;
|
||
|
|
} else if (position >= buffer.size()) {
|
||
|
|
position = buffer.size();
|
||
|
|
} else {
|
||
|
|
position = offset;
|
||
|
|
}
|
||
|
|
} else if (origin == SeekOrigin::FromCurrentPos) {
|
||
|
|
Seek(static_cast<s32>(position) + offset, SeekOrigin::SetOrigin);
|
||
|
|
} else if (origin == SeekOrigin::FromEnd) {
|
||
|
|
Seek(static_cast<s32>(buffer.size()) - offset, SeekOrigin::SetOrigin);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
u8 Stream::ReadByte() {
|
||
|
|
if (position < buffer.size()) {
|
||
|
|
return buffer[position++];
|
||
|
|
} else {
|
||
|
|
throw std::out_of_range("Attempting to read a byte not within the buffer range");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void Stream::WriteByte(u8 byte) {
|
||
|
|
if (position == buffer.size()) {
|
||
|
|
buffer.push_back(byte);
|
||
|
|
position++;
|
||
|
|
} else {
|
||
|
|
buffer.insert(buffer.begin() + position, byte);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace Common
|