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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
/**
* @file llimageworker.cpp
* @brief Base class for images.
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2007, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlife.com/developers/opensource/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at http://secondlife.com/developers/opensource/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llimageworker.h"
#include "llimagedxt.h"
//----------------------------------------------------------------------------
//static
LLWorkerThread* LLImageWorker::sWorkerThread = NULL;
S32 LLImageWorker::sCount = 0;
//static
void LLImageWorker::initClass(LLWorkerThread* workerthread)
{
sWorkerThread = workerthread;
}
//static
void LLImageWorker::cleanupClass()
{
}
//----------------------------------------------------------------------------
LLImageWorker::LLImageWorker(LLImageFormatted* image, U32 priority,
S32 discard,
LLPointer<LLResponder> responder)
: LLWorkerClass(sWorkerThread, "Image"),
mFormattedImage(image),
mDecodedType(-1),
mDiscardLevel(discard),
mPriority(priority),
mResponder(responder)
{
++sCount;
}
LLImageWorker::~LLImageWorker()
{
mDecodedImage = NULL;
mFormattedImage = NULL;
--sCount;
}
//----------------------------------------------------------------------------
//virtual, main thread
void LLImageWorker::startWork(S32 param)
{
llassert_always(mDecodedImage.isNull());
mDecodedType = -1;
}
bool LLImageWorker::doWork(S32 param)
{
bool decoded = false;
if(mDecodedImage.isNull())
{
if (!mFormattedImage->updateData())
{
mDecodedType = -2; // failed
return true;
}
if (mDiscardLevel >= 0)
{
mFormattedImage->setDiscardLevel(mDiscardLevel);
}
if (!(mFormattedImage->getWidth() * mFormattedImage->getHeight() * mFormattedImage->getComponents()))
{
decoded = true; // failed
}
else
{
mDecodedImage = new LLImageRaw(); // allow possibly smaller size set during decoding
}
}
if (!decoded)
{
if (param == 0)
{
// Decode primary channels
decoded = mFormattedImage->decode(mDecodedImage, .1f); // 1ms
}
else
{
// Decode aux channel
decoded = mFormattedImage->decode(mDecodedImage, .1f, param, param); // 1ms
}
}
if (decoded)
{
// Call the callback immediately; endWork doesn't get called until ckeckWork
if (mResponder.notNull())
{
bool success = (!wasAborted() && mDecodedImage.notNull() && mDecodedImage->getDataSize() != 0);
mResponder->completed(success);
}
}
return decoded;
}
void LLImageWorker::endWork(S32 param, bool aborted)
{
if (mDecodedType != -2)
{
mDecodedType = aborted ? -2 : param;
}
}
//----------------------------------------------------------------------------
BOOL LLImageWorker::requestDecodedAuxData(LLPointer<LLImageRaw>& raw, S32 channel, S32 discard)
{
// For most codecs, only mDiscardLevel data is available.
// (see LLImageDXT for exception)
if (discard >= 0 && discard != mFormattedImage->getDiscardLevel())
{
llerrs << "Request for invalid discard level" << llendl;
}
checkWork();
if (mDecodedType == -2)
{
return TRUE; // aborted, done
}
if (mDecodedType != channel)
{
if (!haveWork())
{
addWork(channel, mPriority);
}
return FALSE;
}
else
{
llassert_always(!haveWork());
llassert_always(mDecodedType == channel);
raw = mDecodedImage; // smart pointer acquires ownership of data
mDecodedImage = NULL;
return TRUE;
}
}
BOOL LLImageWorker::requestDecodedData(LLPointer<LLImageRaw>& raw, S32 discard)
{
if (mFormattedImage->getCodec() == IMG_CODEC_DXT)
{
// special case
LLImageDXT* imagedxt = (LLImageDXT*)((LLImageFormatted*)mFormattedImage);
return imagedxt->getMipData(raw, discard);
}
else
{
return requestDecodedAuxData(raw, 0, discard);
}
}
|
