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suyu/src/common/stream.cpp
Morph 99ceb03a1c general: Convert source file copyright comments over to SPDX
This formats all copyright comments according to SPDX formatting guidelines.
Additionally, this resolves the remaining GPLv2 only licensed files by relicensing them to GPLv2.0-or-later.
2022-04-23 05:55:32 -04:00

46 lines
1.2 KiB
C++

// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#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