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1891 lines
39 KiB
1891 lines
39 KiB
14 years ago
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/*==LICENSE==*
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CyanWorlds.com Engine - MMOG client, server and tools
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Copyright (C) 2011 Cyan Worlds, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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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. See the
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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, see <http://www.gnu.org/licenses/>.
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You can contact Cyan Worlds, Inc. by email legal@cyan.com
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or by snail mail at:
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Cyan Worlds, Inc.
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14617 N Newport Hwy
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Mead, WA 99021
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*==LICENSE==*/
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#include <ctype.h>
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#include "hsStream.h"
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#include "hsMemory.h"
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#include "hsUtils.h"
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#include "hsTemplates.h"
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#include "hsStlUtils.h"
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#if HS_BUILD_FOR_UNIX
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#include <unistd.h>
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#endif
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#if HS_BUILD_FOR_MAC
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#include <Files.h>
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#include <stdio.h>
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#include <unistd.h>
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#endif
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#if HS_BUILD_FOR_PS2
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#include <eekernel.h>
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#include <sifdev.h>
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#endif
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#include "hsWindows.h"
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#if HS_BUILD_FOR_WIN32
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#include <io.h>
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#endif
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#include "hsStlUtils.h"
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//////////////////////////////////////////////////////////////////////////////////
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#if HS_CPU_BENDIAN
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static void swapIt(Int32 *swap)
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{
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Byte* c = (Byte*)swap;
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Byte t = c[0];
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c[0] = c[3];
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c[3] = t;
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t = c[1];
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c[1] = c[2];
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c[2] = t;
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}
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static void swapIt(int *swap)
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{
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swapIt((Int32*)swap);
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}
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static void swapIt(float *swap)
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{
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swapIt((Int32*)swap);
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}
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static void swapIt(double *swap)
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{
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float* a = (float*)&swap;
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float* b = (float*)(((Byte*)&swap)+4);
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swapIt(a);
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swapIt(b);
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}
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static void swapIt(Int16 *swap)
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{
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Byte *c = (Byte*)swap;
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Byte t;
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t = c[0];
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c[0] = c[1];
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c[1] = t;
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}
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#define unswapIt(value)
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#else
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#define swapIt(value)
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static void unswapIt(Int32 *swap)
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{
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Byte* c = (Byte*)swap;
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Byte t = c[0];
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c[0] = c[3];
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c[3] = t;
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t = c[1];
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c[1] = c[2];
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c[2] = t;
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}
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static void unswapIt(int *swap)
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{
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unswapIt((Int32*)swap);
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}
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static void unswapIt(float *swap)
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{
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unswapIt((Int32*)swap);
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}
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static void unswapIt(double *swap)
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{
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float* a = (float*)&swap;
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float* b = (float*)(((Byte*)&swap)+4);
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swapIt(a);
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swapIt(b);
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}
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static void unswapIt(Int16 *swap)
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{
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Byte *c = (Byte*)swap;
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Byte t;
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t = c[0];
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c[0] = c[1];
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c[1] = t;
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}
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#endif
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//////////////////////////////////////////////////////////////////////////////////
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void hsStream::FastFwd()
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{
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hsThrow("FastFwd unimplemented by subclass of stream");
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}
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UInt32 hsStream::GetPosition() const
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{
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return fPosition;
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}
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void hsStream::SetPosition(UInt32 position)
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{
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if (position == fPosition)
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return;
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Rewind();
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Skip(position);
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}
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void hsStream::Truncate()
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{
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hsThrow("Truncate unimplemented by subclass of stream");
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}
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UInt32 hsStream::GetSizeLeft()
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{
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UInt32 ret = 0;
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if (GetPosition() > GetEOF())
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{
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hsThrow("Position is beyond EOF");
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}
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else
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||
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{
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ret = GetEOF() - GetPosition();
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}
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return ret;
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||
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}
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//////////////////////////////////////////////////////////////////////////////////
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UInt32 hsStream::GetEOF()
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{
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||
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hsThrow( "GetEOF() unimplemented by subclass of stream");
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return 0;
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||
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}
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||
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||
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void hsStream::CopyToMem(void* mem)
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||
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{
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||
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hsThrow( "CopyToMem unimplemented by subclass of stream");
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||
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}
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||
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//////////////////////////////////////////////////////////////////////////////////
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||
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hsStream::~hsStream()
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||
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{
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}
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||
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UInt32 hsStream::WriteString(const char cstring[])
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{
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return Write(hsStrlen(cstring), cstring);
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}
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UInt32 hsStream::WriteFmt(const char * fmt, ...)
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{
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va_list av;
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va_start( av, fmt );
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|
UInt32 n = WriteFmtV( fmt, av );
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va_end( av );
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||
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return n;
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||
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}
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UInt32 hsStream::WriteFmtV(const char * fmt, va_list av)
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||
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{
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||
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std::string buf;
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||
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xtl::formatv( buf, fmt, av );
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||
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return Write( buf.length(), buf.data() );
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||
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}
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||
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|
UInt32 hsStream::WriteSafeStringLong(const char *string)
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||
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{
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||
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UInt32 len = hsStrlen(string);
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WriteSwap32(len);
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||
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if (len > 0)
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||
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{
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||
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char *buff = TRACKED_NEW char[len+1];
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||
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|
int i;
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||
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for (i = 0; i < len; i++)
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||
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{
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||
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buff[i] = ~string[i];
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||
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|
}
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||
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buff[len] = '\0';
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||
|
|
UInt32 result = Write(len, buff);
|
||
|
|
delete [] buff;
|
||
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|
return result;
|
||
|
|
}
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||
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else
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||
|
|
return 0;
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||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsStream::WriteSafeWStringLong(const wchar_t *string)
|
||
|
|
{
|
||
|
|
UInt32 len = wcslen(string);
|
||
|
|
WriteSwap32(len);
|
||
|
|
if (len > 0)
|
||
|
|
{
|
||
|
|
int i;
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||
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for (i=0; i<len; i++)
|
||
|
|
{
|
||
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|
wchar_t buff = ~string[i];
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||
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|
WriteSwap16((UInt16)buff);
|
||
|
|
}
|
||
|
|
WriteSwap16((UInt16)L'\0');
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
char *hsStream::ReadSafeStringLong()
|
||
|
|
{
|
||
|
|
char *name = nil;
|
||
|
|
UInt32 numChars = ReadSwap32();
|
||
|
|
if (numChars > 0 && numChars <= GetSizeLeft())
|
||
|
|
{
|
||
|
|
name = TRACKED_NEW char[numChars+1];
|
||
|
|
Read(numChars, name);
|
||
|
|
name[numChars] = '\0';
|
||
|
|
|
||
|
|
// if the high bit is set, flip the bits. Otherwise it's a normal string, do nothing.
|
||
|
|
if (name[0] & 0x80)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
for (i = 0; i < numChars; i++)
|
||
|
|
name[i] = ~name[i];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return name;
|
||
|
|
}
|
||
|
|
|
||
|
|
wchar_t *hsStream::ReadSafeWStringLong()
|
||
|
|
{
|
||
|
|
wchar_t *retVal = nil;
|
||
|
|
UInt32 numChars = ReadSwap32();
|
||
|
|
if (numChars > 0 && numChars <= (GetSizeLeft()/2)) // divide by two because each char is two bytes
|
||
|
|
{
|
||
|
|
retVal = TRACKED_NEW wchar_t[numChars+1];
|
||
|
|
int i;
|
||
|
|
for (i=0; i<numChars; i++)
|
||
|
|
retVal[i] = (wchar_t)ReadSwap16();
|
||
|
|
retVal[numChars] = (wchar_t)ReadSwap16(); // we wrote the null out, read it back in
|
||
|
|
|
||
|
|
if (retVal[0]* 0x80)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
for (i=0; i<numChars; i++)
|
||
|
|
retVal[i] = ~retVal[i];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return retVal;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsStream::WriteSafeString(const char *string)
|
||
|
|
{
|
||
|
|
int len = hsStrlen(string);
|
||
|
|
hsAssert(len<0xf000, xtl::format("string len of %d is too long for WriteSafeString %s, use WriteSafeStringLong",
|
||
|
|
string, len).c_str() );
|
||
|
|
|
||
|
|
WriteSwap16(len | 0xf000);
|
||
|
|
if (len > 0)
|
||
|
|
{
|
||
|
|
char *buff = TRACKED_NEW char[len+1];
|
||
|
|
int i;
|
||
|
|
for (i = 0; i < len; i++)
|
||
|
|
{
|
||
|
|
buff[i] = ~string[i];
|
||
|
|
}
|
||
|
|
buff[len] = '\0';
|
||
|
|
UInt32 result = Write(len, buff);
|
||
|
|
delete [] buff;
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsStream::WriteSafeWString(const wchar_t *string)
|
||
|
|
{
|
||
|
|
int len = wcslen(string);
|
||
|
|
hsAssert(len<0xf000, xtl::format("string len of %d is too long for WriteSafeWString, use WriteSafeWStringLong",
|
||
|
|
len).c_str() );
|
||
|
|
|
||
|
|
WriteSwap16(len | 0xf000);
|
||
|
|
if (len > 0)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
for (i=0; i<len; i++)
|
||
|
|
{
|
||
|
|
wchar_t buff = ~string[i];
|
||
|
|
WriteSwap16((UInt16)buff);
|
||
|
|
}
|
||
|
|
WriteSwap16((UInt16)L'\0');
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
char *hsStream::ReadSafeString()
|
||
|
|
{
|
||
|
|
char *name = nil;
|
||
|
|
UInt16 numChars = ReadSwap16();
|
||
|
|
|
||
|
|
#ifndef REMOVE_ME_SOON
|
||
|
|
// Backward compat hack - remove in a week or so (from 6/30/03)
|
||
|
|
hsBool oldFormat = !(numChars & 0xf000);
|
||
|
|
if (oldFormat)
|
||
|
|
ReadSwap16();
|
||
|
|
#endif
|
||
|
|
|
||
|
|
numChars &= ~0xf000;
|
||
|
|
hsAssert(numChars <= GetSizeLeft(), "Bad string");
|
||
|
|
if (numChars > 0 && numChars <= GetSizeLeft())
|
||
|
|
{
|
||
|
|
name = TRACKED_NEW char[numChars+1];
|
||
|
|
Read(numChars, name);
|
||
|
|
name[numChars] = '\0';
|
||
|
|
|
||
|
|
// if the high bit is set, flip the bits. Otherwise it's a normal string, do nothing.
|
||
|
|
if (name[0] & 0x80)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
for (i = 0; i < numChars; i++)
|
||
|
|
name[i] = ~name[i];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return name;
|
||
|
|
}
|
||
|
|
|
||
|
|
wchar_t *hsStream::ReadSafeWString()
|
||
|
|
{
|
||
|
|
wchar_t *retVal = nil;
|
||
|
|
UInt32 numChars = ReadSwap16();
|
||
|
|
|
||
|
|
numChars &= ~0xf000;
|
||
|
|
hsAssert(numChars <= GetSizeLeft()/2, "Bad string");
|
||
|
|
if (numChars > 0 && numChars <= (GetSizeLeft()/2)) // divide by two because each char is two bytes
|
||
|
|
{
|
||
|
|
retVal = TRACKED_NEW wchar_t[numChars+1];
|
||
|
|
int i;
|
||
|
|
for (i=0; i<numChars; i++)
|
||
|
|
retVal[i] = (wchar_t)ReadSwap16();
|
||
|
|
retVal[numChars] = (wchar_t)ReadSwap16(); // we wrote the null out, read it back in
|
||
|
|
|
||
|
|
if (retVal[0]* 0x80)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
for (i=0; i<numChars; i++)
|
||
|
|
retVal[i] = ~retVal[i];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return retVal;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsStream::Read4Bytes(void *pv) // Virtual, faster version in sub classes
|
||
|
|
{
|
||
|
|
int knt = this->Read(sizeof(UInt32), pv);
|
||
|
|
if (knt != 4)
|
||
|
|
return false;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsStream::Read12Bytes(void *buffer) // Reads 12 bytes, return true if success
|
||
|
|
{
|
||
|
|
int knt = this->Read(12,buffer);
|
||
|
|
if (knt != 12)
|
||
|
|
return false;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsStream::Read8Bytes(void *buffer) // Reads 12 bytes, return true if success
|
||
|
|
{
|
||
|
|
int knt = this->Read(8,buffer);
|
||
|
|
if (knt !=8)
|
||
|
|
return false;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsStream::ReadBool() // Virtual, faster version in sub classes
|
||
|
|
{
|
||
|
|
return this->ReadByte();
|
||
|
|
}
|
||
|
|
|
||
|
|
bool hsStream::Readbool() // Virtual, faster version in sub classes
|
||
|
|
{
|
||
|
|
return this->ReadByte() ? true : false;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::ReadBool(int count, hsBool values[])
|
||
|
|
{
|
||
|
|
this->Read(count, values);
|
||
|
|
|
||
|
|
if (sizeof(hsBool) > 1)
|
||
|
|
{ const UInt8* src = (UInt8*)values;
|
||
|
|
|
||
|
|
// go backwards so we don't overwrite ourselves
|
||
|
|
for (int i = count - 1; i >= 0; --i)
|
||
|
|
values[i] = src[i];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt8 hsStream::ReadByte()
|
||
|
|
{
|
||
|
|
UInt8 value;
|
||
|
|
|
||
|
|
this->Read(sizeof(UInt8), &value);
|
||
|
|
return value;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsStream::AtEnd()
|
||
|
|
{
|
||
|
|
hsAssert(0,"No hsStream::AtEnd() implemented for this stream class");
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsStream::IsTokenSeparator(char c)
|
||
|
|
{
|
||
|
|
return (isspace(c) || c==',' || c=='=');
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsStream::GetToken(char *s, UInt32 maxLen, const char beginComment, const char endComment)
|
||
|
|
{
|
||
|
|
char c;
|
||
|
|
char endCom;
|
||
|
|
endCom = endComment;
|
||
|
|
|
||
|
|
while( true )
|
||
|
|
{
|
||
|
|
while( !AtEnd() && IsTokenSeparator(c = ReadByte()) )
|
||
|
|
c = c;
|
||
|
|
;
|
||
|
|
if( AtEnd() )
|
||
|
|
return false;
|
||
|
|
|
||
|
|
if( beginComment != c )
|
||
|
|
break;
|
||
|
|
|
||
|
|
// skip to end of comment
|
||
|
|
while( !AtEnd() && (endCom != (c = ReadByte())) )
|
||
|
|
c= c;
|
||
|
|
;
|
||
|
|
}
|
||
|
|
|
||
|
|
s[0] = c;
|
||
|
|
UInt32 k = 1;
|
||
|
|
while( !AtEnd() && !IsTokenSeparator(c = ReadByte()) )
|
||
|
|
{
|
||
|
|
if( k < maxLen )
|
||
|
|
s[k++] = c;
|
||
|
|
}
|
||
|
|
s[k] = 0;
|
||
|
|
|
||
|
|
|
||
|
|
if( (k > 0)&&!_stricmp(s, "skip") )
|
||
|
|
{
|
||
|
|
int depth = 1;
|
||
|
|
while( depth && GetToken(s, maxLen, beginComment, endCom) )
|
||
|
|
{
|
||
|
|
if( !_stricmp(s, "skip") )
|
||
|
|
depth++;
|
||
|
|
else
|
||
|
|
if( !_stricmp(s, "piks") )
|
||
|
|
depth--;
|
||
|
|
}
|
||
|
|
return GetToken(s, maxLen, beginComment, endCom);
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsStream::ReadLn(char *s, UInt32 maxLen, const char beginComment, const char endComment)
|
||
|
|
{
|
||
|
|
char c;
|
||
|
|
char endCom;
|
||
|
|
endCom = endComment;
|
||
|
|
|
||
|
|
while( true )
|
||
|
|
{
|
||
|
|
while( !AtEnd() && strchr("\r\n",c = ReadByte()) )
|
||
|
|
c = c;
|
||
|
|
;
|
||
|
|
if( AtEnd() )
|
||
|
|
return false;
|
||
|
|
|
||
|
|
if( beginComment != c )
|
||
|
|
break;
|
||
|
|
|
||
|
|
// skip to end of comment
|
||
|
|
while( !AtEnd() && (endCom != (c = ReadByte())) )
|
||
|
|
c= c;
|
||
|
|
;
|
||
|
|
}
|
||
|
|
|
||
|
|
s[0] = c;
|
||
|
|
UInt32 k = 1;
|
||
|
|
while( !AtEnd() && !strchr("\r\n",c = ReadByte()) )
|
||
|
|
{
|
||
|
|
if( k < maxLen )
|
||
|
|
s[k++] = c;
|
||
|
|
}
|
||
|
|
s[k] = 0;
|
||
|
|
|
||
|
|
|
||
|
|
if( (k > 0)&&!_stricmp(s, "skip") )
|
||
|
|
{
|
||
|
|
int depth = 1;
|
||
|
|
while( depth && ReadLn(s, maxLen, beginComment, endCom) )
|
||
|
|
{
|
||
|
|
if( !_stricmp(s, "skip") )
|
||
|
|
depth++;
|
||
|
|
else
|
||
|
|
if( !_stricmp(s, "piks") )
|
||
|
|
depth--;
|
||
|
|
}
|
||
|
|
return ReadLn(s, maxLen, beginComment, endCom);
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt16 hsStream::ReadSwap16()
|
||
|
|
{
|
||
|
|
UInt16 value;
|
||
|
|
this->Read(sizeof(UInt16), &value);
|
||
|
|
swapIt((Int16*)&value);
|
||
|
|
return value;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::ReadSwap16(int count, UInt16 values[])
|
||
|
|
{
|
||
|
|
this->Read(count * sizeof(UInt16), values);
|
||
|
|
#if HS_CPU_BENDIAN
|
||
|
|
for (int i = 0; i < count; i++)
|
||
|
|
swapIt((Int16*)&values[i]);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsStream::ReadSwap32()
|
||
|
|
{
|
||
|
|
UInt32 value;
|
||
|
|
Read4Bytes(&value);
|
||
|
|
swapIt((Int32*)&value);
|
||
|
|
return value;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::ReadSwap32(int count, UInt32 values[])
|
||
|
|
{
|
||
|
|
this->Read(count * sizeof(UInt32), values);
|
||
|
|
#if HS_CPU_BENDIAN
|
||
|
|
for (int i = 0; i < count; i++)
|
||
|
|
swapIt((Int32*)&values[i]);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsStream::ReadUnswap32()
|
||
|
|
{
|
||
|
|
UInt32 value;
|
||
|
|
Read4Bytes(&value);
|
||
|
|
unswapIt((Int32*)&value);
|
||
|
|
return value;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if HS_CAN_USE_FLOAT
|
||
|
|
double hsStream::ReadSwapDouble()
|
||
|
|
{
|
||
|
|
double ival;
|
||
|
|
Read8Bytes(&ival);
|
||
|
|
double *pval = (double *)&ival; // all in the name of speed,
|
||
|
|
swapIt(pval);
|
||
|
|
return *pval;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::ReadSwapDouble(int count, double values[])
|
||
|
|
{
|
||
|
|
this->Read(count * sizeof(double), values);
|
||
|
|
#if HS_CPU_BENDIAN
|
||
|
|
for (int i = 0; i < count; i++)
|
||
|
|
swapIt(&values[i]);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
float hsStream::ReadSwapFloat()
|
||
|
|
{
|
||
|
|
UInt32 ival;
|
||
|
|
Read4Bytes(&ival);
|
||
|
|
float *pval = (float *)&ival; // all in the name of speed,
|
||
|
|
swapIt(pval);
|
||
|
|
return *pval;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::ReadSwapFloat(int count, float values[])
|
||
|
|
{
|
||
|
|
this->Read(count * sizeof(float), values);
|
||
|
|
#if HS_CPU_BENDIAN
|
||
|
|
for (int i = 0; i < count; i++)
|
||
|
|
swapIt(&values[i]);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
float hsStream::ReadUnswapFloat()
|
||
|
|
{
|
||
|
|
float value;
|
||
|
|
this->Read(sizeof(float), &value);
|
||
|
|
unswapIt(&value);
|
||
|
|
return value;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
void hsStream::WriteBool(hsBool value)
|
||
|
|
{
|
||
|
|
UInt8 dst = (value != 0);
|
||
|
|
|
||
|
|
this->Write(sizeof(UInt8), &dst);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::Writebool(bool value)
|
||
|
|
{
|
||
|
|
UInt8 dst = (value != 0);
|
||
|
|
|
||
|
|
this->Write(sizeof(UInt8), &dst);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::WriteBool(int count, const hsBool values[])
|
||
|
|
{
|
||
|
|
if (sizeof(hsBool) > 1)
|
||
|
|
{ hsTempArray<UInt8> storage(count);
|
||
|
|
UInt8* dst = (UInt8*)values;
|
||
|
|
|
||
|
|
for (int i = 0; i < count; i++)
|
||
|
|
dst[i] = (values[i] != 0);
|
||
|
|
this->Write(count, dst);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
this->Write(count, values);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::WriteByte(UInt8 value)
|
||
|
|
{
|
||
|
|
this->Write(sizeof(UInt8), &value);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::WriteSwap16(UInt16 value)
|
||
|
|
{
|
||
|
|
swapIt((Int16*)&value);
|
||
|
|
this->Write(sizeof(Int16), &value);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::WriteSwap16(int count, const UInt16 values[])
|
||
|
|
{
|
||
|
|
for (int i = 0; i < count; i++)
|
||
|
|
this->WriteSwap16(values[i]);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::WriteSwap32(UInt32 value)
|
||
|
|
{
|
||
|
|
swapIt((Int32*)&value);
|
||
|
|
this->Write(sizeof(Int32), &value);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::WriteSwap32(int count, const UInt32 values[])
|
||
|
|
{
|
||
|
|
for (int i = 0; i < count; i++)
|
||
|
|
this->WriteSwap32(values[i]);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::WriteUnswap32(UInt32 value)
|
||
|
|
{
|
||
|
|
unswapIt((Int32*)&value);
|
||
|
|
this->Write(sizeof(Int32), &value);
|
||
|
|
}
|
||
|
|
|
||
|
|
#if HS_CAN_USE_FLOAT
|
||
|
|
void hsStream::WriteSwapDouble(double value)
|
||
|
|
{
|
||
|
|
swapIt(&value);
|
||
|
|
this->Write(sizeof(double), &value);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::WriteSwapDouble(int count, const double values[])
|
||
|
|
{
|
||
|
|
for (int i = 0; i < count; i++)
|
||
|
|
this->WriteSwapDouble(values[i]);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::WriteSwapFloat(float value)
|
||
|
|
{
|
||
|
|
swapIt(&value);
|
||
|
|
this->Write(sizeof(float), &value);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::WriteSwapFloat(int count, const float values[])
|
||
|
|
{
|
||
|
|
for (int i = 0; i < count; i++)
|
||
|
|
this->WriteSwapFloat(values[i]);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsStream::WriteUnswapFloat(float value)
|
||
|
|
{
|
||
|
|
unswapIt(&value);
|
||
|
|
this->Write(sizeof(float), &value);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void hsStream::WriteSwapAtom(UInt32 tag, UInt32 size)
|
||
|
|
{
|
||
|
|
this->WriteSwap32(tag);
|
||
|
|
this->WriteSwap32(size);
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsStream::ReadSwapAtom(UInt32* sizePtr)
|
||
|
|
{
|
||
|
|
UInt32 tag = this->ReadSwap32();
|
||
|
|
UInt32 size = this->ReadSwap32();
|
||
|
|
|
||
|
|
if (sizePtr)
|
||
|
|
*sizePtr = size;
|
||
|
|
return tag;
|
||
|
|
}
|
||
|
|
|
||
|
|
//////////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
#define kFileStream_Uninitialized ~0
|
||
|
|
|
||
|
|
hsBool hsFileStream::Open(const char *name, const char *mode)
|
||
|
|
{
|
||
|
|
#ifdef HS_BUILD_FOR_PS2
|
||
|
|
hsAssert(fRef == kFileStream_Uninitialized, "hsFileStream:Open Stream already opened");
|
||
|
|
|
||
|
|
Int32 ref = hsPS2Open(name, mode);
|
||
|
|
if (ref == -1)
|
||
|
|
return false;
|
||
|
|
|
||
|
|
fRef = (UInt32) ref;
|
||
|
|
fFileSize = sceLseek(fRef, 0, SCE_SEEK_END);
|
||
|
|
sceLseek(fRef, 0, SCE_SEEK_SET);
|
||
|
|
fBufferIsEmpty = true;
|
||
|
|
fWriteBufferUsed = false;
|
||
|
|
fVirtualFilePointer = 0;
|
||
|
|
fBufferBase = 0;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
#else
|
||
|
|
hsAssert(0, "hsFileStream::Open NotImplemented");
|
||
|
|
return false;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsFileStream::Open(const wchar *name, const wchar *mode)
|
||
|
|
{
|
||
|
|
hsAssert(0, "hsFileStream::Open NotImplemented");
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsFileStream::Close ()
|
||
|
|
{
|
||
|
|
#ifdef HS_BUILD_FOR_PS2
|
||
|
|
if (fRef != kFileStream_Uninitialized)
|
||
|
|
{
|
||
|
|
hsPS2Close(fRef);
|
||
|
|
fRef = kFileStream_Uninitialized;
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
#else
|
||
|
|
hsAssert(0, "hsFileStream::Close NotImplemented");
|
||
|
|
return false;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsFileStream::GetFileRef()
|
||
|
|
{
|
||
|
|
return fRef;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsFileStream::SetFileRef(UInt32 ref)
|
||
|
|
{
|
||
|
|
hsAssert(ref != kFileStream_Uninitialized, "bad ref");
|
||
|
|
fRef = ref;
|
||
|
|
#if HS_BUILD_FOR_PS2
|
||
|
|
fFileSize = sceLseek(fRef, 0, SCE_SEEK_END);
|
||
|
|
sceLseek(fRef, 0, SCE_SEEK_SET);
|
||
|
|
fBufferIsEmpty= true;
|
||
|
|
fWriteBufferUsed= false;
|
||
|
|
fVirtualFilePointer= 0;
|
||
|
|
fBufferBase= 0;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
hsFileStream::hsFileStream()
|
||
|
|
{
|
||
|
|
fRef = kFileStream_Uninitialized;
|
||
|
|
#if HS_BUILD_FOR_PS2
|
||
|
|
fBufferIsEmpty= true;
|
||
|
|
fWriteBufferUsed= false;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
hsFileStream::~hsFileStream()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsFileStream::Read(UInt32 bytes, void* buffer)
|
||
|
|
{
|
||
|
|
hsAssert(fRef != kFileStream_Uninitialized, "fRef uninitialized");
|
||
|
|
|
||
|
|
fBytesRead += bytes;
|
||
|
|
fPosition += bytes;
|
||
|
|
|
||
|
|
#if HS_BUILD_FOR_MAC
|
||
|
|
Int16 err;
|
||
|
|
|
||
|
|
err = FSRead(fRef, (long*)&bytes, buffer);
|
||
|
|
if (err == noErr)
|
||
|
|
return bytes;
|
||
|
|
else
|
||
|
|
return 0;
|
||
|
|
#elif HS_BUILD_FOR_PS2
|
||
|
|
Int32 ret;
|
||
|
|
Int32 nReadBytes= 0;
|
||
|
|
while(bytes){
|
||
|
|
if( !fBufferIsEmpty ){ // read at already chatched.
|
||
|
|
Int32 DataBytesInBuffer= fBufferBase + kBufferSize - fVirtualFilePointer;
|
||
|
|
Int32 ChatchedReadSize= DataBytesInBuffer < bytes ? DataBytesInBuffer : bytes;
|
||
|
|
memcpy( buffer, &fBuffer[fVirtualFilePointer-fBufferBase], ChatchedReadSize );
|
||
|
|
nReadBytes += ChatchedReadSize;
|
||
|
|
buffer= (void *)(((char*)buffer) + ChatchedReadSize);
|
||
|
|
fVirtualFilePointer += ChatchedReadSize;
|
||
|
|
bytes -= ChatchedReadSize;
|
||
|
|
fBufferIsEmpty= (fBufferBase + kBufferSize <= fVirtualFilePointer);
|
||
|
|
}
|
||
|
|
if( kBufferSize <= bytes ){ // read directry, for Large block read.
|
||
|
|
hsAssert( fBufferIsEmpty, "read buffer was not used.");
|
||
|
|
Int32 DirectReadSize= bytes - bytes % kBufferSize;
|
||
|
|
ret= sceRead(fRef, buffer, DirectReadSize);
|
||
|
|
if( ret == -1 ){
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
hsAssert( ret == DirectReadSize, "require read size != return size");
|
||
|
|
nReadBytes += DirectReadSize;
|
||
|
|
buffer= (void *)(((char*)buffer) + DirectReadSize);
|
||
|
|
fVirtualFilePointer += DirectReadSize;
|
||
|
|
bytes -= DirectReadSize;
|
||
|
|
}
|
||
|
|
if( 0 < bytes && fBufferIsEmpty ){ // fill buffer
|
||
|
|
hsAssert( fVirtualFilePointer % kBufferSize == 0 , "read buffer is not alignment.");
|
||
|
|
ret= sceRead(fRef, fBuffer, kBufferSize );
|
||
|
|
if( ret == -1 ){
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
fBufferBase= fVirtualFilePointer;
|
||
|
|
fBufferIsEmpty= false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nReadBytes;
|
||
|
|
|
||
|
|
#elif HS_BUILD_FOR_WIN32
|
||
|
|
UInt32 rBytes;
|
||
|
|
ReadFile((HANDLE)fRef, buffer, bytes, &rBytes, nil);
|
||
|
|
if(bytes == rBytes)
|
||
|
|
return bytes;
|
||
|
|
else
|
||
|
|
return 0;
|
||
|
|
#else
|
||
|
|
return 0;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsFileStream::Write(UInt32 bytes, const void* buffer)
|
||
|
|
{
|
||
|
|
hsAssert(fRef != kFileStream_Uninitialized, "fRef uninitialized");
|
||
|
|
|
||
|
|
fBytesRead += bytes;
|
||
|
|
fPosition += bytes;
|
||
|
|
|
||
|
|
#if HS_BUILD_FOR_MAC
|
||
|
|
Int16 err;
|
||
|
|
|
||
|
|
err = FSWrite(fRef, (long*)&bytes, buffer);
|
||
|
|
if (err == noErr)
|
||
|
|
return bytes;
|
||
|
|
else
|
||
|
|
{
|
||
|
|
hsDebugMessage("hsFileStream::Write failed", err);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#elif HS_BUILD_FOR_PS2
|
||
|
|
Int32 ret;
|
||
|
|
|
||
|
|
fWriteBufferUsed =true; // buffered write was not implement, not yet.
|
||
|
|
|
||
|
|
ret = sceWrite(fRef, (void*)buffer ,bytes);
|
||
|
|
if(ret != -1)
|
||
|
|
return ret;
|
||
|
|
else
|
||
|
|
return 0;
|
||
|
|
#elif HS_BUILD_FOR_WIN32
|
||
|
|
UInt32 wBytes;
|
||
|
|
WriteFile((HANDLE)fRef, buffer, bytes, &wBytes, nil);
|
||
|
|
if(bytes == wBytes)
|
||
|
|
return bytes;
|
||
|
|
else
|
||
|
|
{
|
||
|
|
char str[128];
|
||
|
|
sprintf(str, "hsFileStream::Write failed. err %d", GetLastError());
|
||
|
|
hsAssert(false, str);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
return 0;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
hsBool hsFileStream::AtEnd()
|
||
|
|
{
|
||
|
|
#if HS_BUILD_FOR_MAC
|
||
|
|
Int32 eof;
|
||
|
|
Int32 pos;
|
||
|
|
::GetEOF(fRef, &eof);
|
||
|
|
::GetFPos(fRef, &pos);
|
||
|
|
return pos >= eof;
|
||
|
|
#elif HS_BUILD_FOR_PS2
|
||
|
|
Int32 rVal = 0;
|
||
|
|
if( fWriteBufferUsed || fVirtualFilePointer == 0 ){
|
||
|
|
// bufferd write was not implement, yiet.
|
||
|
|
rVal = sceLseek(fRef, 0, SCE_SEEK_CUR);
|
||
|
|
return rVal >= fFileSize;
|
||
|
|
}
|
||
|
|
else{ // bufferd read
|
||
|
|
return fVirtualFilePointer >= fFileSize;
|
||
|
|
}
|
||
|
|
|
||
|
|
#elif HS_BUILD_FOR_WIN32
|
||
|
|
UInt32 bytes;
|
||
|
|
PeekNamedPipe((void*)fRef, nil, 0, nil, &bytes, nil);
|
||
|
|
return bytes>0;
|
||
|
|
#else
|
||
|
|
hsAssert(0,"No hsStream::AtEnd() implemented for this stream class");
|
||
|
|
return false;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsFileStream::Skip(UInt32 delta)
|
||
|
|
{
|
||
|
|
fBytesRead += delta;
|
||
|
|
fPosition += delta;
|
||
|
|
|
||
|
|
#if HS_BUILD_FOR_MAC
|
||
|
|
short err = SetFPos(fRef, fsFromMark, delta);
|
||
|
|
hsAssert(err == noErr, "SetFPos failed");
|
||
|
|
#elif HS_BUILD_FOR_PS2
|
||
|
|
const Int32 NewPointer= fVirtualFilePointer+delta;
|
||
|
|
if( fWriteBufferUsed || fVirtualFilePointer == 0 ){
|
||
|
|
// bufferd write was not implement, yiet.
|
||
|
|
sceLseek(fRef, delta, SCE_SEEK_CUR);
|
||
|
|
}
|
||
|
|
else{ // bufferd read.
|
||
|
|
if( !fBufferIsEmpty ){
|
||
|
|
Int32 CurBlock= fVirtualFilePointer / kBufferSize;
|
||
|
|
Int32 NewBlock= NewPointer / kBufferSize;
|
||
|
|
if( CurBlock == NewBlock ){
|
||
|
|
fVirtualFilePointer += delta;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
fBufferIsEmpty= false;
|
||
|
|
}
|
||
|
|
Int32 NewBaseMod= NewPointer % kBufferSize;
|
||
|
|
Int32 NewBase= NewPointer - NewBaseMod;
|
||
|
|
if( NewBaseMod ){
|
||
|
|
sceLseek( fRef, NewBase, SCE_SEEK_SET );
|
||
|
|
sceRead( fRef, fBuffer, kBufferSize );
|
||
|
|
fVirtualFilePointer= NewPointer;
|
||
|
|
fBufferBase= NewBase;
|
||
|
|
fBufferIsEmpty= false;
|
||
|
|
}
|
||
|
|
else{
|
||
|
|
// just block border.
|
||
|
|
fVirtualFilePointer= NewPointer;
|
||
|
|
fBufferBase= NewBase;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#elif HS_BUILD_FOR_WIN32
|
||
|
|
hsDebugMessage("hsFileStream::Skip unimplemented", 0);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsFileStream::Rewind()
|
||
|
|
{
|
||
|
|
fBytesRead = 0;
|
||
|
|
fPosition = 0;
|
||
|
|
|
||
|
|
#if HS_BUILD_FOR_MAC
|
||
|
|
short err = SetFPos(fRef, fsFromStart, 0);
|
||
|
|
hsAssert(err == noErr, "SetFPos failed");
|
||
|
|
#elif HS_BUILD_FOR_PS2
|
||
|
|
if( fWriteBufferUsed || fVirtualFilePointer == 0 ){
|
||
|
|
// bufferd write was not implement, yiet.
|
||
|
|
sceLseek(fRef,0,SCE_SEEK_SET);
|
||
|
|
}
|
||
|
|
else{ // bufferd read.
|
||
|
|
sceLseek(fRef, 0, SCE_SEEK_SET);
|
||
|
|
fBufferIsEmpty= true;
|
||
|
|
fVirtualFilePointer= 0;
|
||
|
|
fBufferBase= 0;
|
||
|
|
}
|
||
|
|
#elif HS_BUILD_FOR_WIN32
|
||
|
|
hsDebugMessage("hsFileStream::Rewind unimplemented", 0);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsFileStream::Truncate()
|
||
|
|
{
|
||
|
|
hsDebugMessage("hsFileStream::Truncate unimplemented", 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
#if !HS_BUILD_FOR_PS2
|
||
|
|
#if !(HS_BUILD_FOR_REFERENCE)
|
||
|
|
|
||
|
|
hsUNIXStream::~hsUNIXStream()
|
||
|
|
{
|
||
|
|
// Don't Close here, because Sub classes Don't always want that behaviour!
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsUNIXStream::Open(const char *name, const char *mode)
|
||
|
|
{
|
||
|
|
fPosition = 0;
|
||
|
|
fRef = hsFopen(name, mode);
|
||
|
|
return (fRef) ? true : false;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsUNIXStream::Open(const wchar *name, const wchar *mode)
|
||
|
|
{
|
||
|
|
fPosition = 0;
|
||
|
|
fRef = _wfopen(name, mode);
|
||
|
|
return (fRef) ? true : false;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsUNIXStream::Close()
|
||
|
|
{
|
||
|
|
int rtn = true;
|
||
|
|
if (fRef)
|
||
|
|
rtn = fclose(fRef);
|
||
|
|
fRef = nil;
|
||
|
|
delete [] fBuff;
|
||
|
|
fBuff = nil;
|
||
|
|
|
||
|
|
return !rtn;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsUNIXStream::Read(UInt32 bytes, void* buffer)
|
||
|
|
{
|
||
|
|
if (!fRef || !bytes)
|
||
|
|
return 0;
|
||
|
|
int numItems = ::fread(buffer, 1 /*size*/, bytes /*count*/, fRef);
|
||
|
|
fBytesRead += numItems;
|
||
|
|
fPosition += numItems;
|
||
|
|
if ((unsigned)numItems < bytes) {
|
||
|
|
if (feof(fRef)) {
|
||
|
|
// EOF ocurred
|
||
|
|
char str[128];
|
||
|
|
sprintf(str, "Hit EOF on UNIX Read, only read %d out of requested %d bytes\n", numItems, bytes);
|
||
|
|
hsDebugMessage(str, 0);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
hsDebugMessage("Error on UNIX Read", ferror(fRef));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return numItems;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsUNIXStream::AtEnd()
|
||
|
|
{
|
||
|
|
if (!fRef)
|
||
|
|
return 1;
|
||
|
|
hsBool rVal;
|
||
|
|
int x = getc(fRef);
|
||
|
|
rVal = feof(fRef) != 0;
|
||
|
|
ungetc(x, fRef);
|
||
|
|
return rVal;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsUNIXStream::Write(UInt32 bytes, const void* buffer)
|
||
|
|
{
|
||
|
|
if (!fRef)
|
||
|
|
return 0;
|
||
|
|
fPosition += bytes;
|
||
|
|
return fwrite(buffer, bytes, 1, fRef);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsUNIXStream::SetPosition(UInt32 position)
|
||
|
|
{
|
||
|
|
if (!fRef || (position == fPosition))
|
||
|
|
return;
|
||
|
|
fBytesRead = position;
|
||
|
|
fPosition = position;
|
||
|
|
(void)::fseek(fRef, position, SEEK_SET);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsUNIXStream::Skip(UInt32 delta)
|
||
|
|
{
|
||
|
|
if (!fRef)
|
||
|
|
return;
|
||
|
|
fBytesRead += delta;
|
||
|
|
fPosition += delta;
|
||
|
|
(void)::fseek(fRef, delta, SEEK_CUR);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsUNIXStream::Rewind()
|
||
|
|
{
|
||
|
|
if (!fRef)
|
||
|
|
return;
|
||
|
|
fBytesRead = 0;
|
||
|
|
fPosition = 0;
|
||
|
|
(void)::fseek(fRef, 0, SEEK_SET);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsUNIXStream::FastFwd()
|
||
|
|
{
|
||
|
|
if (!fRef)
|
||
|
|
return;
|
||
|
|
(void)::fseek(fRef, 0, SEEK_END);
|
||
|
|
fBytesRead = fPosition = ftell(fRef);
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsUNIXStream::GetEOF()
|
||
|
|
{
|
||
|
|
if( !fRef )
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
long oldPos = ftell( fRef );
|
||
|
|
(void)::fseek( fRef, 0, SEEK_END );
|
||
|
|
UInt32 end = (UInt32)ftell( fRef );
|
||
|
|
(void)::fseek( fRef, oldPos, SEEK_SET );
|
||
|
|
|
||
|
|
return end;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsUNIXStream::Truncate()
|
||
|
|
{
|
||
|
|
if (!fRef)
|
||
|
|
return;
|
||
|
|
#if! __MWERKS__
|
||
|
|
int handle = _fileno(fRef);
|
||
|
|
#if !HS_BUILD_FOR_UNIX
|
||
|
|
_chsize(handle, fPosition);
|
||
|
|
#else
|
||
|
|
ftruncate(handle, fPosition);
|
||
|
|
#endif
|
||
|
|
#else
|
||
|
|
#if 1
|
||
|
|
UInt32 handle = (UInt32)fRef->handle;
|
||
|
|
OSErr err = ::SetEOF(handle, fPosition);
|
||
|
|
if(err != noErr)
|
||
|
|
{
|
||
|
|
hsThrow("Truncate error!");
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsUNIXStream::Flush()
|
||
|
|
{
|
||
|
|
if (!fRef)
|
||
|
|
return;
|
||
|
|
(void)::fflush(fRef);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
plReadOnlySubStream::~plReadOnlySubStream()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
void plReadOnlySubStream::Open( hsStream *base, UInt32 offset, UInt32 length )
|
||
|
|
{
|
||
|
|
fBase = base;
|
||
|
|
fOffset = offset;
|
||
|
|
fLength = length;
|
||
|
|
|
||
|
|
fBase->SetPosition( fOffset );
|
||
|
|
IFixPosition();
|
||
|
|
}
|
||
|
|
|
||
|
|
void plReadOnlySubStream::IFixPosition( void )
|
||
|
|
{
|
||
|
|
fPosition = fBase->GetPosition() - fOffset;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool plReadOnlySubStream::AtEnd()
|
||
|
|
{
|
||
|
|
if( fPosition >= fLength )
|
||
|
|
return true;
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 plReadOnlySubStream::Read(UInt32 byteCount, void* buffer)
|
||
|
|
{
|
||
|
|
if( byteCount > GetSizeLeft() )
|
||
|
|
{
|
||
|
|
hsThrow("Attempting to read past end of stream");
|
||
|
|
byteCount = GetSizeLeft();
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 read = fBase->Read( byteCount, buffer );
|
||
|
|
IFixPosition();
|
||
|
|
return read;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 plReadOnlySubStream::Write(UInt32 byteCount, const void* buffer)
|
||
|
|
{
|
||
|
|
hsAssert( false, "Write not allowed on an plReadOnlySubStream" );
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void plReadOnlySubStream::Skip(UInt32 deltaByteCount)
|
||
|
|
{
|
||
|
|
fBase->Skip( deltaByteCount );
|
||
|
|
IFixPosition();
|
||
|
|
}
|
||
|
|
|
||
|
|
void plReadOnlySubStream::Rewind()
|
||
|
|
{
|
||
|
|
fBase->SetPosition( fOffset );
|
||
|
|
IFixPosition();
|
||
|
|
}
|
||
|
|
|
||
|
|
void plReadOnlySubStream::FastFwd()
|
||
|
|
{
|
||
|
|
fBase->SetPosition( fOffset + fLength );
|
||
|
|
IFixPosition();
|
||
|
|
}
|
||
|
|
|
||
|
|
void plReadOnlySubStream::Truncate()
|
||
|
|
{
|
||
|
|
hsAssert( false, "Can't truncate a read-only stream" );
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 plReadOnlySubStream::GetEOF()
|
||
|
|
{
|
||
|
|
return fLength;
|
||
|
|
}
|
||
|
|
|
||
|
|
//////////////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
#define kRAMStreamChunkSize 1024
|
||
|
|
|
||
|
|
hsRAMStream::hsRAMStream() : fAppender(1, kRAMStreamChunkSize)
|
||
|
|
{
|
||
|
|
fIter.ResetToHead(&fAppender);
|
||
|
|
}
|
||
|
|
|
||
|
|
hsRAMStream::hsRAMStream(UInt32 chunkSize) : fAppender(1, chunkSize)
|
||
|
|
{
|
||
|
|
fIter.ResetToHead(&fAppender);
|
||
|
|
}
|
||
|
|
|
||
|
|
hsRAMStream::~hsRAMStream()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsRAMStream::Reset()
|
||
|
|
{
|
||
|
|
fBytesRead = 0;
|
||
|
|
fPosition = 0;
|
||
|
|
|
||
|
|
fAppender.Reset();
|
||
|
|
fIter.ResetToHead(&fAppender);
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsRAMStream::AtEnd()
|
||
|
|
{
|
||
|
|
return (fBytesRead >= fAppender.Count() * fAppender.ElemSize());
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsRAMStream::Read(UInt32 byteCount, void * buffer)
|
||
|
|
{
|
||
|
|
if (fBytesRead + byteCount > fAppender.Count() * fAppender.ElemSize())
|
||
|
|
{
|
||
|
|
hsThrow("Attempting to read past end of stream");
|
||
|
|
byteCount = (fAppender.Count() * fAppender.ElemSize()) - fBytesRead;
|
||
|
|
}
|
||
|
|
|
||
|
|
fBytesRead += byteCount;
|
||
|
|
fPosition += byteCount;
|
||
|
|
|
||
|
|
fIter.Next(byteCount, buffer);
|
||
|
|
|
||
|
|
return byteCount;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsRAMStream::Write(UInt32 byteCount, const void* buffer)
|
||
|
|
{
|
||
|
|
fPosition += byteCount;
|
||
|
|
|
||
|
|
fAppender.PushTail(byteCount, buffer);
|
||
|
|
|
||
|
|
return byteCount;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsRAMStream::Skip(UInt32 deltaByteCount)
|
||
|
|
{
|
||
|
|
fPosition += deltaByteCount;
|
||
|
|
fIter.Next(deltaByteCount, nil);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsRAMStream::Rewind()
|
||
|
|
{
|
||
|
|
fBytesRead = 0;
|
||
|
|
fPosition = 0;
|
||
|
|
fIter.ResetToHead(&fAppender);
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsRAMStream::Truncate()
|
||
|
|
{
|
||
|
|
Reset();
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsRAMStream::GetEOF()
|
||
|
|
{
|
||
|
|
return fAppender.Count() * fAppender.ElemSize();
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsRAMStream::CopyToMem(void* mem)
|
||
|
|
{
|
||
|
|
(void)fAppender.CopyInto(mem);
|
||
|
|
}
|
||
|
|
|
||
|
|
//////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
UInt32 hsNullStream::Read(UInt32 byteCount, void * buffer)
|
||
|
|
{
|
||
|
|
hsThrow("hsNullStream: Can't read from this stream!");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsNullStream::Write(UInt32 byteCount, const void* buffer)
|
||
|
|
{
|
||
|
|
fBytesRead += byteCount;
|
||
|
|
fPosition += byteCount;
|
||
|
|
|
||
|
|
return byteCount;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsNullStream::Skip(UInt32 deltaByteCount)
|
||
|
|
{
|
||
|
|
fBytesRead += deltaByteCount;
|
||
|
|
fPosition += deltaByteCount;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsNullStream::Rewind()
|
||
|
|
{
|
||
|
|
fBytesRead = 0;
|
||
|
|
fPosition = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsNullStream::Truncate()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
hsBool hsReadOnlyStream::AtEnd()
|
||
|
|
{
|
||
|
|
return fData >= fStop;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsReadOnlyStream::Read(UInt32 byteCount, void* buffer)
|
||
|
|
{
|
||
|
|
if (fData + byteCount > fStop)
|
||
|
|
{
|
||
|
|
hsThrow("Attempting to read past end of stream");
|
||
|
|
byteCount = GetSizeLeft();
|
||
|
|
}
|
||
|
|
|
||
|
|
HSMemory::BlockMove(fData, buffer, byteCount);
|
||
|
|
fData += byteCount;
|
||
|
|
fBytesRead += byteCount;
|
||
|
|
fPosition += byteCount;
|
||
|
|
return byteCount;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsReadOnlyStream::Write(UInt32 byteCount, const void* buffer)
|
||
|
|
{
|
||
|
|
hsThrow( "can't write to a readonly stream");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsReadOnlyStream::Skip(UInt32 deltaByteCount)
|
||
|
|
{
|
||
|
|
fBytesRead += deltaByteCount;
|
||
|
|
fPosition += deltaByteCount;
|
||
|
|
fData += deltaByteCount;
|
||
|
|
if (fData > fStop)
|
||
|
|
hsThrow( "Skip went past end of stream");
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsReadOnlyStream::Rewind()
|
||
|
|
{
|
||
|
|
fBytesRead = 0;
|
||
|
|
fPosition = 0;
|
||
|
|
fData = fStart;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsReadOnlyStream::Truncate()
|
||
|
|
{
|
||
|
|
hsThrow( "can't write to a readonly stream");
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsReadOnlyStream::CopyToMem(void* mem)
|
||
|
|
{
|
||
|
|
if (fData < fStop)
|
||
|
|
HSMemory::BlockMove(fData, mem, fStop-fData);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////////////////////////////
|
||
|
|
UInt32 hsWriteOnlyStream::Read(UInt32 byteCount, void* buffer)
|
||
|
|
{
|
||
|
|
hsThrow( "can't read to a writeonly stream");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsWriteOnlyStream::Write(UInt32 byteCount, const void* buffer)
|
||
|
|
{
|
||
|
|
if (fData + byteCount > fStop)
|
||
|
|
hsThrow("Write past end of stream");
|
||
|
|
HSMemory::BlockMove(buffer, fData, byteCount);
|
||
|
|
fData += byteCount;
|
||
|
|
fBytesRead += byteCount;
|
||
|
|
fPosition += byteCount;
|
||
|
|
return byteCount;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
///////////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
hsQueueStream::hsQueueStream(Int32 size) :
|
||
|
|
fSize(size),
|
||
|
|
fReadCursor(0),
|
||
|
|
fWriteCursor(0)
|
||
|
|
{
|
||
|
|
fQueue = TRACKED_NEW char[fSize];
|
||
|
|
}
|
||
|
|
|
||
|
|
hsQueueStream::~hsQueueStream()
|
||
|
|
{
|
||
|
|
delete [] fQueue;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsQueueStream::Read(UInt32 byteCount, void * buffer)
|
||
|
|
{
|
||
|
|
hsAssert(fWriteCursor >= 0 && fWriteCursor < fSize,"hsQueueStream: WriteCursor out of range.");
|
||
|
|
hsAssert(fReadCursor >= 0 && fReadCursor < fSize,"hsQueueStream: ReadCursor out of range.");
|
||
|
|
|
||
|
|
Int32 limit, length, total;
|
||
|
|
|
||
|
|
limit = fWriteCursor >= fReadCursor ? fWriteCursor : fSize;
|
||
|
|
length = hsMinimum(limit-fReadCursor,byteCount);
|
||
|
|
HSMemory::BlockMove(fQueue+fReadCursor,buffer,length);
|
||
|
|
fReadCursor += length;
|
||
|
|
fReadCursor %= fSize;
|
||
|
|
total = length;
|
||
|
|
|
||
|
|
if (length < byteCount && limit != fWriteCursor)
|
||
|
|
{
|
||
|
|
limit = fWriteCursor;
|
||
|
|
length = hsMinimum(limit,byteCount-length);
|
||
|
|
HSMemory::BlockMove(fQueue,static_cast<char*>(buffer)+total,length);
|
||
|
|
fReadCursor = length;
|
||
|
|
total += length;
|
||
|
|
}
|
||
|
|
|
||
|
|
return total;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsQueueStream::Write(UInt32 byteCount, const void* buffer)
|
||
|
|
{
|
||
|
|
hsAssert(fWriteCursor >= 0 && fWriteCursor < fSize,"hsQueueStream: WriteCursor out of range.");
|
||
|
|
hsAssert(fReadCursor >= 0 && fReadCursor < fSize,"hsQueueStream: ReadCursor out of range.");
|
||
|
|
|
||
|
|
Int32 length;
|
||
|
|
|
||
|
|
length = hsMinimum(fSize-fWriteCursor,byteCount);
|
||
|
|
HSMemory::BlockMove(buffer,fQueue+fWriteCursor,length);
|
||
|
|
if (fReadCursor > fWriteCursor)
|
||
|
|
{
|
||
|
|
#if 0
|
||
|
|
if (fReadCursor < fWriteCursor+length+1)
|
||
|
|
hsStatusMessage("ReadCursor wrapped\n");
|
||
|
|
#endif
|
||
|
|
fReadCursor = hsMaximum(fReadCursor,fWriteCursor+length+1);
|
||
|
|
fReadCursor %= fSize;
|
||
|
|
}
|
||
|
|
fWriteCursor += length;
|
||
|
|
fWriteCursor %= fSize;
|
||
|
|
|
||
|
|
if (length < byteCount)
|
||
|
|
{
|
||
|
|
Write(byteCount - length,static_cast<const char*>(buffer)+length);
|
||
|
|
}
|
||
|
|
|
||
|
|
return byteCount;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsQueueStream::Skip(UInt32 deltaByteCount)
|
||
|
|
{
|
||
|
|
Int32 limit, length;
|
||
|
|
|
||
|
|
limit = fWriteCursor >= fReadCursor ? fWriteCursor : fSize;
|
||
|
|
length = hsMinimum(limit-fReadCursor,deltaByteCount);
|
||
|
|
fReadCursor += length;
|
||
|
|
|
||
|
|
if (length < deltaByteCount && limit != fWriteCursor)
|
||
|
|
{
|
||
|
|
limit = fWriteCursor;
|
||
|
|
length = hsMinimum(limit,deltaByteCount-length);
|
||
|
|
fReadCursor = length;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
fReadCursor %= fSize;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsQueueStream::Rewind()
|
||
|
|
{
|
||
|
|
fReadCursor = fWriteCursor+1;
|
||
|
|
fReadCursor %= fSize;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsQueueStream::FastFwd()
|
||
|
|
{
|
||
|
|
fReadCursor = fWriteCursor;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsQueueStream::AtEnd()
|
||
|
|
{
|
||
|
|
return fReadCursor == fWriteCursor;
|
||
|
|
}
|
||
|
|
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
// hsBufferedStream
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
inline void FastByteCopy(void* dest, const void* src, UInt32 bytes)
|
||
|
|
{
|
||
|
|
// Don't use memcpy if the read is 4 bytes or less, it's faster to just do a
|
||
|
|
// direct copy
|
||
|
|
switch (bytes)
|
||
|
|
{
|
||
|
|
case 4:
|
||
|
|
*((UInt32*)dest) = *((const UInt32*)src);
|
||
|
|
break;
|
||
|
|
case 2:
|
||
|
|
*((UInt16*)dest) = *((const UInt16*)src);
|
||
|
|
break;
|
||
|
|
case 1:
|
||
|
|
*((UInt8*)dest) = *((const UInt8*)src);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
memcpy(dest, src, bytes);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//#define LOG_BUFFERED
|
||
|
|
|
||
|
|
hsBufferedStream::hsBufferedStream()
|
||
|
|
: fRef(nil)
|
||
|
|
, fFileSize(0)
|
||
|
|
, fBufferLen(0)
|
||
|
|
, fWriteBufferUsed(false)
|
||
|
|
#ifdef HS_DEBUGGING
|
||
|
|
, fBufferHits(0)
|
||
|
|
, fBufferMisses(0)
|
||
|
|
, fBufferReadIn(0)
|
||
|
|
, fBufferReadOut(0)
|
||
|
|
, fReadDirect(0)
|
||
|
|
, fLastReadPos(0)
|
||
|
|
, fFilename(nil)
|
||
|
|
, fCloseReason(nil)
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBufferedStream::~hsBufferedStream()
|
||
|
|
{
|
||
|
|
#ifdef LOG_BUFFERED
|
||
|
|
delete [] fFilename;
|
||
|
|
#endif // LOG_BUFFERED
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsBufferedStream::Open(const char* name, const char* mode)
|
||
|
|
{
|
||
|
|
hsAssert(!fRef, "hsBufferedStream:Open Stream already opened");
|
||
|
|
fRef = hsFopen(name, mode);
|
||
|
|
if (!fRef)
|
||
|
|
return false;
|
||
|
|
|
||
|
|
SetFileRef(fRef);
|
||
|
|
|
||
|
|
#ifdef LOG_BUFFERED
|
||
|
|
fBufferHits = fBufferMisses = 0;
|
||
|
|
fBufferReadIn = fBufferReadOut = fReadDirect = fLastReadPos = 0;
|
||
|
|
delete [] fFilename;
|
||
|
|
fFilename = hsStrdup(name);
|
||
|
|
fCloseReason = nil;
|
||
|
|
#endif // LOG_BUFFERED
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsBufferedStream::Open(const wchar *name, const wchar *mode)
|
||
|
|
{
|
||
|
|
hsAssert(0, "hsFileStream::Open NotImplemented for wchar");
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsBufferedStream::Close()
|
||
|
|
{
|
||
|
|
int rtn = true;
|
||
|
|
if (fRef)
|
||
|
|
rtn = fclose(fRef);
|
||
|
|
fRef = nil;
|
||
|
|
|
||
|
|
#ifdef LOG_BUFFERED
|
||
|
|
hsUNIXStream s;
|
||
|
|
static bool firstClose = true;
|
||
|
|
if (firstClose)
|
||
|
|
{
|
||
|
|
firstClose = false;
|
||
|
|
s.Open("log\\BufferedStream.csv", "wt");
|
||
|
|
s.WriteString("File,Hits,Misses,Read In,Read Out,Read Direct,% Wasted,Reason\n");
|
||
|
|
}
|
||
|
|
else
|
||
|
|
s.Open("log\\BufferedStream.csv", "at");
|
||
|
|
|
||
|
|
int wasted = 100;
|
||
|
|
if (fBufferReadIn + fReadDirect > 0)
|
||
|
|
wasted -= int((float(fBufferReadOut+fReadDirect) / float(fBufferReadIn+fReadDirect)) * 100.f);
|
||
|
|
|
||
|
|
s.WriteFmt("%s,%d,%d,%u,%u,%u,%d,%s\n",
|
||
|
|
fFilename, fBufferHits, fBufferMisses, fBufferReadIn, fBufferReadOut, fReadDirect,
|
||
|
|
wasted,
|
||
|
|
fCloseReason ? fCloseReason : "Unknown");
|
||
|
|
|
||
|
|
s.Close();
|
||
|
|
#endif // LOG_BUFFERED
|
||
|
|
|
||
|
|
return !rtn;
|
||
|
|
}
|
||
|
|
|
||
|
|
FILE* hsBufferedStream::GetFileRef()
|
||
|
|
{
|
||
|
|
return fRef;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsBufferedStream::SetFileRef(FILE* ref)
|
||
|
|
{
|
||
|
|
hsAssert(ref, "bad ref");
|
||
|
|
fRef = ref;
|
||
|
|
|
||
|
|
fseek(fRef, 0, SEEK_END);
|
||
|
|
fFileSize = ftell(fRef);
|
||
|
|
fseek(fRef, 0, SEEK_SET);
|
||
|
|
|
||
|
|
fBufferLen = 0;
|
||
|
|
fPosition = 0;
|
||
|
|
fWriteBufferUsed = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsBufferedStream::Read(UInt32 bytes, void* buffer)
|
||
|
|
{
|
||
|
|
hsAssert(fRef, "fRef uninitialized");
|
||
|
|
if (!fRef || bytes == 0)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
UInt32 numReadBytes = 0;
|
||
|
|
|
||
|
|
while (bytes > 0 && fPosition < fFileSize)
|
||
|
|
{
|
||
|
|
// First, see if we've got anything in the buffer
|
||
|
|
if (fBufferLen > 0)
|
||
|
|
{
|
||
|
|
// Figure out how much we can copy out of the buffer
|
||
|
|
UInt32 bufferPos = fPosition % kBufferSize;
|
||
|
|
UInt32 bytesInBuffer = fBufferLen - bufferPos;
|
||
|
|
UInt32 cachedReadSize = bytesInBuffer < bytes ? bytesInBuffer : bytes;
|
||
|
|
|
||
|
|
FastByteCopy(buffer, &fBuffer[bufferPos], cachedReadSize);
|
||
|
|
|
||
|
|
fPosition += cachedReadSize;
|
||
|
|
numReadBytes += cachedReadSize;
|
||
|
|
bytes -= cachedReadSize;
|
||
|
|
buffer = (void*)(((char*)buffer) + cachedReadSize);
|
||
|
|
|
||
|
|
// If we read all the data out of the buffer, set it to empty
|
||
|
|
if ((bufferPos + cachedReadSize) == fBufferLen)
|
||
|
|
fBufferLen = 0;
|
||
|
|
|
||
|
|
#ifdef HS_DEBUGGING
|
||
|
|
fLastReadPos = fPosition;
|
||
|
|
fBufferHits++;
|
||
|
|
fBufferReadOut += cachedReadSize;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
// Now see if the remaining read (if any) is the size of the buffer or larger.
|
||
|
|
// If it is, read as many complete blocks as possible directly into the output buffer.
|
||
|
|
if (bytes >= kBufferSize && fPosition % kBufferSize == 0)
|
||
|
|
{
|
||
|
|
UInt32 directReadSize = bytes - (bytes % kBufferSize);
|
||
|
|
hsAssert(ftell(fRef) % kBufferSize == 0 , "read buffer is not in alignment.");
|
||
|
|
int amtRead = ::fread(buffer, 1, directReadSize, fRef);
|
||
|
|
fPosition += amtRead;
|
||
|
|
numReadBytes += amtRead;
|
||
|
|
bytes -= amtRead;
|
||
|
|
buffer = (void*)(((char*)buffer) + amtRead);
|
||
|
|
#ifdef HS_DEBUGGING
|
||
|
|
fLastReadPos = fPosition;
|
||
|
|
fReadDirect += directReadSize;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
// If we've got bytes left to read and we didn't pass the end of the file, buffer a new block
|
||
|
|
if (bytes > 0 && fPosition < fFileSize)
|
||
|
|
{
|
||
|
|
hsAssert(ftell(fRef) % kBufferSize == 0 , "read buffer is not in alignment.");
|
||
|
|
fBufferLen = ::fread(fBuffer, 1, kBufferSize, fRef);
|
||
|
|
|
||
|
|
#ifdef HS_DEBUGGING
|
||
|
|
// If our last read wasn't at the start of the new buffer, it's a miss.
|
||
|
|
if (fLastReadPos != fPosition)
|
||
|
|
{
|
||
|
|
fBufferMisses++;
|
||
|
|
fBufferHits--;
|
||
|
|
}
|
||
|
|
|
||
|
|
fBufferReadIn += fBufferLen;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return numReadBytes;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsBufferedStream::Write(UInt32 bytes, const void* buffer)
|
||
|
|
{
|
||
|
|
hsAssert(fRef, "fRef uninitialized");
|
||
|
|
fWriteBufferUsed = true;
|
||
|
|
int amtWritten = fwrite((void*)buffer, 1, bytes, fRef);
|
||
|
|
fPosition += amtWritten;
|
||
|
|
return amtWritten;
|
||
|
|
}
|
||
|
|
|
||
|
|
hsBool hsBufferedStream::AtEnd()
|
||
|
|
{
|
||
|
|
if (fWriteBufferUsed)
|
||
|
|
{
|
||
|
|
if (!fRef)
|
||
|
|
return true;
|
||
|
|
bool rVal;
|
||
|
|
int x = getc(fRef);
|
||
|
|
rVal = feof(fRef) != 0;
|
||
|
|
ungetc(x, fRef);
|
||
|
|
return rVal;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// buffered read
|
||
|
|
return fPosition >= fFileSize;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsBufferedStream::Skip(UInt32 delta)
|
||
|
|
{
|
||
|
|
if (fWriteBufferUsed)
|
||
|
|
{
|
||
|
|
// buffered write not implemented yet.
|
||
|
|
fseek(fRef, delta, SEEK_CUR);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
UInt32 blockStart = ((fPosition + delta) / kBufferSize) * kBufferSize;
|
||
|
|
|
||
|
|
// We've got data in the buffer, see if we can just skip in that
|
||
|
|
if (fBufferLen > 0)
|
||
|
|
{
|
||
|
|
Int32 newBufferPos = Int32(fPosition % kBufferSize) + Int32(delta);
|
||
|
|
|
||
|
|
// If we skipped outside of our buffer, invalidate it
|
||
|
|
if (newBufferPos < 0 || UInt32(newBufferPos) >= fBufferLen)
|
||
|
|
{
|
||
|
|
fBufferLen = 0;
|
||
|
|
fseek(fRef, blockStart, SEEK_SET);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
fseek(fRef, blockStart, SEEK_SET);
|
||
|
|
}
|
||
|
|
|
||
|
|
fPosition += delta;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsBufferedStream::Rewind()
|
||
|
|
{
|
||
|
|
if (fWriteBufferUsed)
|
||
|
|
{
|
||
|
|
// buffered write not implemented yet.
|
||
|
|
fseek(fRef, 0, SEEK_SET);
|
||
|
|
}
|
||
|
|
// If the currently buffered block isn't the first one, invalidate our buffer
|
||
|
|
else if (fPosition >= kBufferSize)
|
||
|
|
fBufferLen = 0;
|
||
|
|
|
||
|
|
fPosition = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
UInt32 hsBufferedStream::GetEOF()
|
||
|
|
{
|
||
|
|
if (fWriteBufferUsed)
|
||
|
|
{
|
||
|
|
if (!fRef)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
long oldPos = ftell(fRef);
|
||
|
|
fseek(fRef, 0, SEEK_END);
|
||
|
|
UInt32 end = (UInt32)ftell(fRef);
|
||
|
|
fseek(fRef, oldPos, SEEK_SET);
|
||
|
|
|
||
|
|
return end;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
return fFileSize;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hsBufferedStream::Truncate()
|
||
|
|
{
|
||
|
|
hsAssert(0, "hsBufferedStream::Truncate unimplemented");
|
||
|
|
}
|