mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-11-17 09:51:38 +00:00
114 lines
2.4 KiB
C++
114 lines
2.4 KiB
C++
/*
|
|
* libsmackerdec - Smacker video decoder
|
|
* Copyright (C) 2011 Barry Duncan
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "FileStream.h"
|
|
#include "filesystem.h"
|
|
#include <stdlib.h>
|
|
#include "cmdlib.h"
|
|
|
|
namespace SmackerCommon {
|
|
|
|
bool FileStream::Open(const char *fileName)
|
|
{
|
|
FString fixedname = fileName;
|
|
FixPathSeperator(fixedname);
|
|
file = fileSystem.OpenFileReader(fixedname);
|
|
if (!file.isOpen())
|
|
{
|
|
// log error
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool FileStream::Is_Open()
|
|
{
|
|
return file.isOpen();
|
|
}
|
|
|
|
void FileStream::Close()
|
|
{
|
|
file.Close();
|
|
}
|
|
|
|
int32_t FileStream::ReadBytes(uint8_t *data, uint32_t nBytes)
|
|
{
|
|
uint32_t nCount = (uint32_t)file.Read(data, static_cast<int32_t>(nBytes));
|
|
|
|
if (nCount != nBytes)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
return (int32_t)nCount;
|
|
}
|
|
|
|
uint32_t FileStream::ReadUint32LE()
|
|
{
|
|
return file.ReadInt32();
|
|
}
|
|
|
|
uint32_t FileStream::ReadUint32BE()
|
|
{
|
|
return file.ReadInt32BE();
|
|
}
|
|
|
|
uint16_t FileStream::ReadUint16LE()
|
|
{
|
|
return file.ReadInt16();
|
|
}
|
|
|
|
uint16_t FileStream::ReadUint16BE()
|
|
{
|
|
return file.ReadInt16BE();
|
|
}
|
|
|
|
uint8_t FileStream::ReadByte()
|
|
{
|
|
return file.ReadInt8();
|
|
}
|
|
|
|
int32_t FileStream::Seek(int32_t offset, SeekDirection direction)
|
|
{
|
|
int32_t nStatus = -1;
|
|
if (kSeekStart == direction) {
|
|
nStatus = file.Seek(offset, FileReader::SeekSet);
|
|
}
|
|
else if (kSeekCurrent == direction) {
|
|
nStatus = file.Seek(offset, FileReader::SeekCur);
|
|
}
|
|
else if (kSeekEnd == direction) {
|
|
nStatus = file.Seek(offset, FileReader::SeekEnd);
|
|
}
|
|
|
|
return nStatus;
|
|
}
|
|
|
|
int32_t FileStream::Skip(int32_t offset)
|
|
{
|
|
return Seek(offset, kSeekCurrent);
|
|
}
|
|
|
|
int32_t FileStream::GetPosition()
|
|
{
|
|
return file.Tell();
|
|
}
|
|
|
|
} // close namespace SmackerCommon
|