-
Notifications
You must be signed in to change notification settings - Fork 9
/
TileAccess.java
198 lines (174 loc) · 6.68 KB
/
TileAccess.java
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
188
189
190
191
192
193
194
195
196
197
198
/*-
* #%L
* Volume rendering of bdv datasets
* %%
* Copyright (C) 2018 - 2023 Tobias Pietzsch
* %%
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 HOLDERS 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.
* #L%
*/
package bvv.core.blocks;
import bdv.util.volatiles.VolatileView;
import bvv.core.backend.Texture;
import bvv.core.cache.CacheSpec;
import bvv.core.cache.UploadBuffer;
import bvv.core.multires.ResolutionLevel3D;
import net.imglib2.RandomAccessible;
import net.imglib2.Volatile;
import net.imglib2.cache.UncheckedCache;
import net.imglib2.cache.ref.WeakRefLoaderCache;
import net.imglib2.img.cell.AbstractCellImg;
import net.imglib2.type.NativeType;
import net.imglib2.type.PrimitiveType;
import net.imglib2.util.Fraction;
import static net.imglib2.type.PrimitiveType.SHORT;
/**
* Copy blocks from a {@link ResolutionLevel3D} source to an {@link UploadBuffer}.
* <p>
* This class is not thread-safe. Use {@link Cache} to keep cached instances per thread.
*
* @param <S>
* primitive array type of image data, e.g. {@code short[]}.
*/
public class TileAccess< S >
{
private final CacheSpec cacheSpec;
// src?
private final GridDataAccess< S > dataAccess;
// ?
private final CopySubArray< S, ByteUtils.Address > copySubArray;
// ?
private final CopyGridBlock gcopy = new CopyGridBlock();
/** temporary to store block min (computed from gridPos) */
private final int[] min = new int[ 3 ];
public TileAccess(
final GridDataAccess< S > dataAccess,
final CopySubArray< S, ByteUtils.Address > copySubArray,
final CacheSpec cacheSpec )
{
this.dataAccess = dataAccess;
this.copySubArray = copySubArray;
this.cacheSpec = cacheSpec;
}
public boolean canLoadCompletely( final int[] gridPos, final boolean failfast )
{
for ( int d = 0; d < 3; ++d )
min[ d ] = gridPos[ d ] * cacheSpec.blockSize()[ d ] - cacheSpec.padOffset()[ d ];
return gcopy.canLoadCompletely( min, cacheSpec.paddedBlockSize(), dataAccess, failfast );
}
public boolean canLoadPartially( final int[] gridPos )
{
for ( int d = 0; d < 3; ++d )
min[ d ] = gridPos[ d ] * cacheSpec.blockSize()[ d ] - cacheSpec.padOffset()[ d ];
return gcopy.canLoadPartially( min, cacheSpec.paddedBlockSize(), dataAccess );
}
/**
* Load data for the tile at {@code gridPos} into {@code buffer}.
* The tile is a padded block according to the {@code CacheSpec}.
*/
public boolean loadTile( final int[] gridPos, final UploadBuffer buffer )
{
for ( int d = 0; d < 3; ++d )
min[ d ] = gridPos[ d ] * cacheSpec.blockSize()[ d ] - cacheSpec.padOffset()[ d ];
return gcopy.copy( min, cacheSpec.paddedBlockSize(), buffer, dataAccess, copySubArray );
}
@SuppressWarnings( { "rawtypes", "unchecked" } )
static TileAccess< ? > create( final ResolutionLevel3D< ? > resolutionLevel3D, final CacheSpec cacheSpec )
{
final Object type = resolutionLevel3D.getType();
if ( isSupportedType( type ) )
{
RandomAccessible< ? > img = resolutionLevel3D.getImage();
if ( img instanceof VolatileView )
img = ( ( VolatileView ) img ).getVolatileViewData().getImg();
final boolean cellimg = img instanceof AbstractCellImg;
if ( cacheSpec.format() == Texture.InternalFormat.R16 && cellimg )
{
final boolean volatil = type instanceof Volatile;
return new TileAccess<>(
volatil
? new GridDataAccessImp.VolatileCells<>( ( AbstractCellImg ) img )
: new GridDataAccessImp.Cells<>( ( AbstractCellImg ) img ),
new CopySubArrayImp.ShortToAddress(),
cacheSpec
);
}
}
throw new UnsupportedOperationException( "pixel and/or image type not supported (yet)." );
}
public static boolean isSupportedType( final Object type )
{
// Currently only [Volatile]UnsignedShortType CellImgs are handled correctly
if ( type instanceof NativeType )
{
final PrimitiveType primitive = ( ( NativeType ) type ).getNativeTypeFactory().getPrimitiveType();
final Fraction epp = ( ( NativeType ) type ).getEntitiesPerPixel();
if ( primitive == SHORT && epp.getNumerator() == epp.getDenominator() )
return true;
}
return false;
}
/**
* Thread-local weak cache for {@code TileAccess} to avoid creating too many of them.
* (There should be one {@code TileAccess} per thread, source stack, and {@code CacheSpec}.)
*/
public static class Cache
{
private static class Key
{
final ResolutionLevel3D< ? > resolutionLevel3D;
final CacheSpec cacheSpec;
private final int hashcode;
Key( final ResolutionLevel3D< ? > resolutionLevel3D, final CacheSpec cacheSpec )
{
this.resolutionLevel3D = resolutionLevel3D;
this.cacheSpec = cacheSpec;
int value = resolutionLevel3D.hashCode();
value = 31 * value + cacheSpec.hashCode();
this.hashcode = value;
}
@Override
public boolean equals( final Object o )
{
if ( !( o instanceof Cache.Key ) )
return false;
final Cache.Key key = ( Cache.Key ) o;
if ( !resolutionLevel3D.equals( key.resolutionLevel3D ) )
return false;
return cacheSpec.equals( key.cacheSpec );
}
@Override
public int hashCode()
{
return hashcode;
}
}
private final ThreadLocal< UncheckedCache< Cache.Key, TileAccess< ? > > > accesses = ThreadLocal.withInitial( () ->
new WeakRefLoaderCache< Cache.Key, TileAccess< ? > >()
.withLoader( key -> TileAccess.create( key.resolutionLevel3D, key.cacheSpec ) )
.unchecked() );
public TileAccess< ? > get( final ResolutionLevel3D< ? > resolutionLevel3D, final CacheSpec cacheSpec )
{
return accesses.get().get( new Cache.Key( resolutionLevel3D, cacheSpec ) );
}
}
}