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
|
/**
* @file llimageworker.cpp
* @brief Base class for images.
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* 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
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llimageworker.h"
#include "llimagedxt.h"
//----------------------------------------------------------------------------
// MAIN THREAD
LLImageDecodeThread::LLImageDecodeThread(bool threaded)
: LLQueuedThread("imagedecode", threaded)
{
mCreationMutex = new LLMutex();
}
//virtual
LLImageDecodeThread::~LLImageDecodeThread()
{
delete mCreationMutex ;
}
// MAIN THREAD
// virtual
S32 LLImageDecodeThread::update(F32 max_time_ms)
{
LL_PROFILE_ZONE_SCOPED_CATEGORY_TEXTURE;
S32 res = LLQueuedThread::update(max_time_ms);
return res;
}
LLImageDecodeThread::handle_t LLImageDecodeThread::decodeImage(LLImageFormatted* image,
S32 discard, BOOL needs_aux, Responder* responder)
{
LL_PROFILE_ZONE_SCOPED_CATEGORY_TEXTURE;
handle_t handle = generateHandle();
ImageRequest* req = new ImageRequest(handle, image,
discard, needs_aux,
responder);
addRequest(req);
return handle;
}
LLImageDecodeThread::Responder::~Responder()
{
}
//----------------------------------------------------------------------------
LLImageDecodeThread::ImageRequest::ImageRequest(handle_t handle, LLImageFormatted* image,
S32 discard, BOOL needs_aux,
LLImageDecodeThread::Responder* responder)
: LLQueuedThread::QueuedRequest(handle, FLAG_AUTO_COMPLETE),
mFormattedImage(image),
mDiscardLevel(discard),
mNeedsAux(needs_aux),
mDecodedRaw(FALSE),
mDecodedAux(FALSE),
mResponder(responder)
{
}
LLImageDecodeThread::ImageRequest::~ImageRequest()
{
mDecodedImageRaw = NULL;
mDecodedImageAux = NULL;
mFormattedImage = NULL;
}
//----------------------------------------------------------------------------
// Returns true when done, whether or not decode was successful.
bool LLImageDecodeThread::ImageRequest::processRequest()
{
LL_PROFILE_ZONE_SCOPED_CATEGORY_TEXTURE;
const F32 decode_time_slice = 0.f; //disable time slicing
bool done = true;
if (!mDecodedRaw && mFormattedImage.notNull())
{
// Decode primary channels
if (mDecodedImageRaw.isNull())
{
// parse formatted header
if (!mFormattedImage->updateData())
{
return true; // done (failed)
}
if (!(mFormattedImage->getWidth() * mFormattedImage->getHeight() * mFormattedImage->getComponents()))
{
return true; // done (failed)
}
if (mDiscardLevel >= 0)
{
mFormattedImage->setDiscardLevel(mDiscardLevel);
}
mDecodedImageRaw = new LLImageRaw(mFormattedImage->getWidth(),
mFormattedImage->getHeight(),
mFormattedImage->getComponents());
}
done = mFormattedImage->decode(mDecodedImageRaw, decode_time_slice); // 1ms
// some decoders are removing data when task is complete and there were errors
mDecodedRaw = done && mDecodedImageRaw->getData();
}
if (done && mNeedsAux && !mDecodedAux && mFormattedImage.notNull())
{
// Decode aux channel
if (!mDecodedImageAux)
{
mDecodedImageAux = new LLImageRaw(mFormattedImage->getWidth(),
mFormattedImage->getHeight(),
1);
}
done = mFormattedImage->decodeChannels(mDecodedImageAux, decode_time_slice, 4, 4); // 1ms
mDecodedAux = done && mDecodedImageAux->getData();
}
return done;
}
void LLImageDecodeThread::ImageRequest::finishRequest(bool completed)
{
LL_PROFILE_ZONE_SCOPED_CATEGORY_TEXTURE;
if (mResponder.notNull())
{
bool success = completed && mDecodedRaw && (!mNeedsAux || mDecodedAux);
mResponder->completed(success, mDecodedImageRaw, mDecodedImageAux);
}
// Will automatically be deleted
}
// Used by unit test only
// Checks that a responder exists for this instance so that something can happen when completion is reached
bool LLImageDecodeThread::ImageRequest::tut_isOK()
{
return mResponder.notNull();
}
|
