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
|
/**
* @file llimagej2c.h
* @brief Image implmenation for jpeg2000.
*
* Copyright (c) 2001-$CurrentYear$, Linden Research, Inc.
* $License$
*/
#ifndef LL_LLIMAGEJ2C_H
#define LL_LLIMAGEJ2C_H
#include "llimage.h"
#include "llassettype.h"
class LLImageJ2CImpl;
class LLImageJ2C : public LLImageFormatted
{
protected:
virtual ~LLImageJ2C();
public:
LLImageJ2C();
// Base class overrides
/*virtual*/ BOOL updateData();
/*virtual*/ BOOL decode(LLImageRaw *raw_imagep, F32 decode_time=0.0);
/*virtual*/ BOOL decode(LLImageRaw *raw_imagep, F32 decode_time, S32 first_channel, S32 max_channel_count);
/*virtual*/ BOOL encode(const LLImageRaw *raw_imagep, F32 encode_time=0.0);
/*virtual*/ S32 calcHeaderSize();
/*virtual*/ S32 calcDataSize(S32 discard_level = 0);
/*virtual*/ S32 calcDiscardLevelBytes(S32 bytes);
/*virtual*/ S8 getRawDiscardLevel();
// 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 LLString &filename);
// Encode accessors
void setReversible(const BOOL reversible); // Use non-lossy?
void setRate(F32 rate);
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 = 0.f);
static void openDSO();
static void closeDSO();
protected:
friend class LLImageJ2CImpl;
friend class LLImageJ2COJ;
friend class LLImageJ2CKDU;
void decodeFailed();
void updateRawDiscardLevel();
S32 mMaxBytes; // Maximum number of bytes of data to use...
S8 mRawDiscardLevel;
F32 mRate;
LLImageJ2CImpl *mImpl;
};
// Derive from this class to implement JPEG2000 decoding
class LLImageJ2CImpl
{
public:
virtual ~LLImageJ2CImpl();
protected:
virtual BOOL getMetadata(LLImageJ2C &base) = 0;
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) = 0;
friend class LLImageJ2C;
};
#define LINDEN_J2C_COMMENT_PREFIX "LL_"
#endif
|
