mirror of
https://github.com/ZDoom/raze-gles.git
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136 lines
2.8 KiB
C++
136 lines
2.8 KiB
C++
//-------------------------------------------------------------------------
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/*
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Copyright (C) 2010-2020 EDuke32 developers and contributors
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Copyright (C) 2020 sirlemonhead
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This file is part of Rednukem.
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Rednukem is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License version 2
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as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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//-------------------------------------------------------------------------
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#include "filestream.h"
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#include <stdlib.h>
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namespace RedNukem {
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bool FileStream::Open(const char *fileName)
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{
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file = kopen4loadfrommod(fileName, 0);
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if (file == -1)
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{
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// log error
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return false;
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}
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return true;
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}
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bool FileStream::Is_Open()
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{
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return file != -1;
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}
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void FileStream::Close()
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{
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kclose(file);
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file = -1;
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}
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int32_t FileStream::ReadBytes(uint8_t *data, uint32_t nBytes)
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{
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uint32_t nCount = (uint32_t)kread(file, data, static_cast<int32_t>(nBytes));
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if (nCount != nBytes) {
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return 0;
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}
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return (int32_t)nCount;
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}
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uint64_t FileStream::ReadUint64LE()
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{
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uint64_t value;
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kread(file, &value, 8);
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return B_LITTLE64(value);
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}
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uint64_t FileStream::ReadUint64BE()
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{
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uint64_t value;
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kread(file, &value, 8);
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return B_BIG64(value);
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}
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uint32_t FileStream::ReadUint32LE()
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{
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uint32_t value;
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kread(file, &value, 4);
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return B_LITTLE32(value);
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}
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uint32_t FileStream::ReadUint32BE()
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{
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uint32_t value;
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kread(file, &value, 4);
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return B_BIG32(value);
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}
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uint16_t FileStream::ReadUint16LE()
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{
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uint16_t value;
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kread(file, &value, 2);
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return B_LITTLE16(value);
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}
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uint16_t FileStream::ReadUint16BE()
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{
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uint16_t value;
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kread(file, &value, 2);
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return B_BIG16(value);
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}
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uint8_t FileStream::ReadByte()
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{
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uint8_t value;
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kread(file, &value, 1);
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return value;
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}
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int32_t FileStream::Seek(int32_t offset, SeekDirection direction)
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{
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int32_t nStatus = -1;
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if (kSeekStart == direction)
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{
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nStatus = klseek(file, offset, SEEK_SET);
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}
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else if (kSeekCurrent == direction)
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{
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nStatus = klseek(file, offset, SEEK_CUR);
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}
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else if (kSeekEnd == direction)
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{
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nStatus = klseek(file, offset, SEEK_END);
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}
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return nStatus;
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}
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int32_t FileStream::Skip(int32_t offset)
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{
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return Seek(offset, kSeekCurrent);
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}
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int32_t FileStream::GetPosition()
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{
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return ktell(file);
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}
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} // close namespace RedNukem
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