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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
/**
* @file llimagej2c.h
* @brief Image implmenation for jpeg2000.
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* 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;
* version 2.1 of the License only.
*
* 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
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLIMAGEJ2C_H
#define LL_LLIMAGEJ2C_H
#include "llimage.h"
#include "llassettype.h"
#include "llmetricperformancetester.h"
// JPEG2000 : compression rate used in j2c conversion.
const F32 DEFAULT_COMPRESSION_RATE = 1.f/8.f;
class LLImageJ2CImpl;
class LLImageCompressionTester ;
class LLImageJ2C : public LLImageFormatted
{
protected:
virtual ~LLImageJ2C();
public:
LLImageJ2C();
// Base class overrides
/*virtual*/ std::string getExtension() { return std::string("j2c"); }
/*virtual*/ BOOL updateData();
/*virtual*/ BOOL decode(LLImageRaw *raw_imagep, F32 decode_time);
/*virtual*/ BOOL decodeChannels(LLImageRaw *raw_imagep, F32 decode_time, S32 first_channel, S32 max_channel_count);
/*virtual*/ BOOL encode(const LLImageRaw *raw_imagep, F32 encode_time);
/*virtual*/ S32 calcHeaderSize();
/*virtual*/ S32 calcDataSize(S32 discard_level = 0);
/*virtual*/ S32 calcDiscardLevelBytes(S32 bytes);
/*virtual*/ S8 getRawDiscardLevel();
// Override these so that we don't try to set a global variable from a DLL
/*virtual*/ void resetLastError();
/*virtual*/ void setLastError(const std::string& message, const std::string& filename = std::string());
BOOL initDecode(LLImageRaw &raw_image, int discard_level, int* region);
BOOL initEncode(LLImageRaw &raw_image, int blocks_size, int precincts_size, int levels);
// Encode with comment text
BOOL encode(const LLImageRaw *raw_imagep, const char* comment_text, F32 encode_time=0.0);
BOOL validate(U8 *data, U32 file_size);
BOOL loadAndValidate(const std::string &filename);
// Encode accessors
void setReversible(const BOOL reversible); // Use non-lossy?
void setMaxBytes(S32 max_bytes);
S32 getMaxBytes() const { return mMaxBytes; }
static S32 calcHeaderSizeJ2C();
static S32 calcDataSizeJ2C(S32 w, S32 h, S32 comp, S32 discard_level, F32 rate = DEFAULT_COMPRESSION_RATE);
static std::string getEngineInfo();
protected:
friend class LLImageJ2CImpl;
friend class LLImageJ2COJ;
friend class LLImageJ2CKDU;
friend class LLImageCompressionTester;
void decodeFailed();
void updateRawDiscardLevel();
S32 mMaxBytes; // Maximum number of bytes of data to use...
S32 mDataSizes[MAX_DISCARD_LEVEL+1]; // Size of data required to reach a given level
U32 mAreaUsedForDataSizeCalcs; // Height * width used to calculate mDataSizes
S8 mRawDiscardLevel;
F32 mRate;
BOOL mReversible;
LLImageJ2CImpl *mImpl;
std::string mLastError;
// Image compression/decompression tester
static LLImageCompressionTester* sTesterp;
};
// Derive from this class to implement JPEG2000 decoding
class LLImageJ2CImpl
{
public:
virtual ~LLImageJ2CImpl();
protected:
// Find out the image size and number of channels.
// Return value:
// true: image size and number of channels was determined
// false: error on decode
virtual BOOL getMetadata(LLImageJ2C &base) = 0;
// Decode the raw image optionally aborting (to continue later) after
// decode_time seconds. Decode at most max_channel_count and start
// decoding channel first_channel.
// Return value:
// true: decoding complete (even if it failed)
// false: time expired while decoding
virtual BOOL decodeImpl(LLImageJ2C &base, LLImageRaw &raw_image, F32 decode_time, S32 first_channel, S32 max_channel_count) = 0;
virtual BOOL encodeImpl(LLImageJ2C &base, const LLImageRaw &raw_image, const char* comment_text, F32 encode_time=0.0,
BOOL reversible=FALSE) = 0;
virtual BOOL initDecode(LLImageJ2C &base, LLImageRaw &raw_image, int discard_level = -1, int* region = NULL) = 0;
virtual BOOL initEncode(LLImageJ2C &base, LLImageRaw &raw_image, int blocks_size = -1, int precincts_size = -1, int levels = 0) = 0;
friend class LLImageJ2C;
};
#define LINDEN_J2C_COMMENT_PREFIX "LL_"
//
// This class is used for performance data gathering only.
// Tracks the image compression / decompression data,
// records and outputs them to the log file.
//
class LLImageCompressionTester : public LLMetricPerformanceTesterBasic
{
public:
LLImageCompressionTester();
~LLImageCompressionTester();
void updateDecompressionStats(const F32 deltaTime) ;
void updateDecompressionStats(const S32 bytesIn, const S32 bytesOut) ;
void updateCompressionStats(const F32 deltaTime) ;
void updateCompressionStats(const S32 bytesIn, const S32 bytesOut) ;
protected:
/*virtual*/ void outputTestRecord(LLSD* sd);
private:
//
// Data size
//
U32 mTotalBytesInDecompression; // Total bytes fed to decompressor
U32 mTotalBytesOutDecompression; // Total bytes produced by decompressor
U32 mTotalBytesInCompression; // Total bytes fed to compressor
U32 mTotalBytesOutCompression; // Total bytes produced by compressor
U32 mRunBytesInDecompression; // Bytes fed to decompressor in this run
U32 mRunBytesOutDecompression; // Bytes produced by the decompressor in this run
U32 mRunBytesInCompression; // Bytes fed to compressor in this run
//
// Time
//
F32 mTotalTimeDecompression; // Total time spent in computing decompression
F32 mTotalTimeCompression; // Total time spent in computing compression
F32 mRunTimeDecompression; // Time in this run (we output every 5 sec in decompress)
};
#endif
|
