filterStream.cpp

Detailed Description

 1
 2//-----------------------------------------------------------------------------
 3// Copyright (c) 2012 GarageGames, LLC
 4//
 5// Permission is hereby granted, free of charge, to any person obtaining a copy
 6// of this software and associated documentation files (the "Software"), to
 7// deal in the Software without restriction, including without limitation the
 8// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 9// sell copies of the Software, and to permit persons to whom the Software is
10// furnished to do so, subject to the following conditions:
11//
12// The above copyright notice and this permission notice shall be included in
13// all copies or substantial portions of the Software.
14//
15// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21// IN THE SOFTWARE.
22//-----------------------------------------------------------------------------
23
24#include "core/filterStream.h"
25
26FilterStream::~FilterStream()
27{
28   //
29}
30
31bool FilterStream::_read(const U32 in_numBytes, void* out_pBuffer)
32{
33   AssertFatal(getStream() != NULL, "Error no stream to pass to");
34
35   bool success = getStream()->read(in_numBytes, out_pBuffer);
36
37   setStatus(getStream()->getStatus());
38   return success;
39}
40
41
42bool FilterStream::_write(const U32, const void*)
43{
44   AssertFatal(false, "No writing allowed to filter");
45   return false;
46}
47
48bool FilterStream::hasCapability(const Capability in_streamCap) const
49{
50   // Fool the compiler.  We know better...
51   FilterStream* ncThis = const_cast<FilterStream*>(this);
52   AssertFatal(ncThis->getStream() != NULL, "Error no stream to pass to");
53
54   return ncThis->getStream()->hasCapability(in_streamCap);
55}
56
57U32 FilterStream::getPosition() const
58{
59   // Fool the compiler.  We know better...
60   FilterStream* ncThis = const_cast<FilterStream*>(this);
61   AssertFatal(ncThis->getStream() != NULL, "Error no stream to pass to");
62
63   return ncThis->getStream()->getPosition();
64}
65
66bool FilterStream::setPosition(const U32 in_newPosition)
67{
68   AssertFatal(getStream() != NULL, "Error no stream to pass to");
69
70   return getStream()->setPosition(in_newPosition);
71}
72
73U32 FilterStream::getStreamSize()
74{
75   AssertFatal(getStream() != NULL, "Error no stream to pass to");
76
77   return getStream()->getStreamSize();
78}
79
80