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