1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2008-2018 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef PX_PHYSICS_COMMON_IO
#define PX_PHYSICS_COMMON_IO
#include "foundation/PxIO.h"
#include "foundation/PxAssert.h"
#include "foundation/PxMemory.h"
#include "CmPhysXCommon.h"
namespace physx
{
// wrappers for IO classes so that we can add extra functionality (byte counting, buffering etc)
namespace Cm
{
class InputStreamReader
{
public:
InputStreamReader(PxInputStream& stream) : mStream(stream) { }
PxU32 read(void* dest, PxU32 count)
{
PxU32 readLength = mStream.read(dest, count);
// zero the buffer if we didn't get all the data
if(readLength<count)
PxMemZero(reinterpret_cast<PxU8*>(dest)+readLength, count-readLength);
return readLength;
}
template <typename T> T get()
{
T val;
PxU32 length = mStream.read(&val, sizeof(T));
PX_ASSERT(length == sizeof(T));
PX_UNUSED(length);
return val;
}
protected:
PxInputStream &mStream;
private:
InputStreamReader& operator=(const InputStreamReader&);
};
class InputDataReader : public InputStreamReader
{
public:
InputDataReader(PxInputData& data) : InputStreamReader(data) {}
InputDataReader &operator=(const InputDataReader &);
PxU32 length() const { return getData().getLength(); }
void seek(PxU32 offset) { getData().seek(offset); }
PxU32 tell() { return getData().tell(); }
private:
PxInputData& getData() { return static_cast<PxInputData&>(mStream); }
const PxInputData& getData() const { return static_cast<const PxInputData&>(mStream); }
};
class OutputStreamWriter
{
public:
PX_INLINE OutputStreamWriter(PxOutputStream& stream)
: mStream(stream)
, mCount(0)
{}
PX_INLINE PxU32 write(const void* src, PxU32 offset)
{
PxU32 count = mStream.write(src, offset);
mCount += count;
return count;
}
PX_INLINE PxU32 getStoredSize()
{
return mCount;
}
template<typename T> void put(const T& val)
{
PxU32 length = write(&val, sizeof(T));
PX_ASSERT(length == sizeof(T));
PX_UNUSED(length);
}
private:
OutputStreamWriter& operator=(const OutputStreamWriter&);
PxOutputStream& mStream;
PxU32 mCount;
};
}
}
#endif
|