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ca79fec5
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体验新版 GitCode,发现更多精彩内容 >>
未验证
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ca79fec5
编写于
1月 13, 2020
作者:
G
Guilherme Avila
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
EXRLoader: formatting
上级
8b79ce8b
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
362 addition
and
328 deletion
+362
-328
examples/js/loaders/EXRLoader.js
examples/js/loaders/EXRLoader.js
+181
-164
examples/jsm/loaders/EXRLoader.js
examples/jsm/loaders/EXRLoader.js
+181
-164
未找到文件。
examples/js/loaders/EXRLoader.js
浏览文件 @
ca79fec5
...
...
@@ -745,7 +745,7 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
var
count
=
-
l
;
size
-=
count
+
1
;
for
(
var
i
=
0
;
i
<
count
;
i
++
)
{
out
.
push
(
reader
.
getUint8
(
p
++
)
);
...
...
@@ -757,7 +757,7 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
var
count
=
l
;
size
-=
2
;
var
value
=
reader
.
getUint8
(
p
++
);
for
(
var
i
=
0
;
i
<
count
+
1
;
i
++
)
{
...
...
@@ -788,7 +788,7 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
var
numBlocksY
=
Math
.
ceil
(
height
/
8.0
);
var
leftoverX
=
width
-
(
numBlocksX
-
1
)
*
8
;
var
leftoverY
=
height
-
(
numBlocksY
-
1
)
*
8
;
var
currAcComp
=
{
value
:
0
};
var
currDcComp
=
new
Array
(
numComp
);
var
dctData
=
new
Array
(
numComp
);
...
...
@@ -825,7 +825,7 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
halfZigBlock
[
comp
].
fill
(
0
);
// set block DC component
halfZigBlock
[
comp
][
0
]
=
dcBuffer
[
currDcComp
[
comp
]
++
];
halfZigBlock
[
comp
][
0
]
=
dcBuffer
[
currDcComp
[
comp
]
++
];
// set block AC components
unRleAC
(
currAcComp
,
acBuffer
,
halfZigBlock
[
comp
]
);
...
...
@@ -857,13 +857,13 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
let
type
=
channelData
[
cscSet
.
idx
[
comp
]
].
type
;
for
(
let
y
=
8
*
blocky
;
y
<
8
*
blocky
+
maxY
;
++
y
)
{
offset
=
rowOffsets
[
comp
][
y
];
for
(
let
blockx
=
0
;
blockx
<
numFullBlocksX
;
++
blockx
)
{
let
src
=
blockx
*
64
+
(
(
y
&
0x7
)
*
8
);
dataView
.
setUint16
(
offset
+
0
*
INT16_SIZE
*
type
,
rowBlock
[
comp
][
src
+
0
],
true
);
dataView
.
setUint16
(
offset
+
1
*
INT16_SIZE
*
type
,
rowBlock
[
comp
][
src
+
1
],
true
);
dataView
.
setUint16
(
offset
+
2
*
INT16_SIZE
*
type
,
rowBlock
[
comp
][
src
+
2
],
true
);
...
...
@@ -875,29 +875,29 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
dataView
.
setUint16
(
offset
+
7
*
INT16_SIZE
*
type
,
rowBlock
[
comp
][
src
+
7
],
true
);
offset
+=
8
*
INT16_SIZE
*
type
;
}
}
// handle partial X blocks
if
(
numFullBlocksX
!=
numBlocksX
)
{
for
(
let
y
=
8
*
blocky
;
y
<
8
*
blocky
+
maxY
;
++
y
)
{
let
offset
=
rowOffsets
[
comp
][
y
]
+
8
*
numFullBlocksX
*
INT16_SIZE
*
type
;
let
src
=
numFullBlocksX
*
64
+
(
(
y
&
0x7
)
*
8
);
for
(
let
x
=
0
;
x
<
maxX
;
++
x
)
{
dataView
.
setUint16
(
offset
+
x
*
INT16_SIZE
*
type
,
rowBlock
[
comp
][
src
+
x
],
true
);
}
}
}
}
// comp
}
// blocky
...
...
@@ -955,11 +955,11 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
}
else
{
halfZigBlock
[
dctComp
]
=
acValue
;
dctComp
++
;
dctComp
++
;
}
currAcComp
.
value
++
;
currAcComp
.
value
++
;
}
...
...
@@ -967,88 +967,88 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
function
unZigZag
(
src
,
dst
)
{
dst
[
0
]
=
decodeFloat16
(
src
[
0
]
);
dst
[
1
]
=
decodeFloat16
(
src
[
1
]
);
dst
[
2
]
=
decodeFloat16
(
src
[
5
]
);
dst
[
3
]
=
decodeFloat16
(
src
[
6
]
);
dst
[
4
]
=
decodeFloat16
(
src
[
14
]
);
dst
[
5
]
=
decodeFloat16
(
src
[
15
]
);
dst
[
6
]
=
decodeFloat16
(
src
[
27
]
);
dst
[
7
]
=
decodeFloat16
(
src
[
28
]
);
dst
[
8
]
=
decodeFloat16
(
src
[
2
]
);
dst
[
9
]
=
decodeFloat16
(
src
[
4
]
);
dst
[
10
]
=
decodeFloat16
(
src
[
7
]
);
dst
[
11
]
=
decodeFloat16
(
src
[
13
]
);
dst
[
12
]
=
decodeFloat16
(
src
[
16
]
);
dst
[
13
]
=
decodeFloat16
(
src
[
26
]
);
dst
[
14
]
=
decodeFloat16
(
src
[
29
]
);
dst
[
15
]
=
decodeFloat16
(
src
[
42
]
);
dst
[
16
]
=
decodeFloat16
(
src
[
3
]
);
dst
[
17
]
=
decodeFloat16
(
src
[
8
]
);
dst
[
18
]
=
decodeFloat16
(
src
[
12
]
);
dst
[
19
]
=
decodeFloat16
(
src
[
17
]
);
dst
[
20
]
=
decodeFloat16
(
src
[
25
]
);
dst
[
21
]
=
decodeFloat16
(
src
[
30
]
);
dst
[
22
]
=
decodeFloat16
(
src
[
41
]
);
dst
[
23
]
=
decodeFloat16
(
src
[
43
]
);
dst
[
24
]
=
decodeFloat16
(
src
[
9
]
);
dst
[
25
]
=
decodeFloat16
(
src
[
11
]
);
dst
[
26
]
=
decodeFloat16
(
src
[
18
]
);
dst
[
27
]
=
decodeFloat16
(
src
[
24
]
);
dst
[
28
]
=
decodeFloat16
(
src
[
31
]
);
dst
[
29
]
=
decodeFloat16
(
src
[
40
]
);
dst
[
30
]
=
decodeFloat16
(
src
[
44
]
);
dst
[
31
]
=
decodeFloat16
(
src
[
53
]
);
dst
[
32
]
=
decodeFloat16
(
src
[
10
]
);
dst
[
33
]
=
decodeFloat16
(
src
[
19
]
);
dst
[
34
]
=
decodeFloat16
(
src
[
23
]
);
dst
[
35
]
=
decodeFloat16
(
src
[
32
]
);
dst
[
36
]
=
decodeFloat16
(
src
[
39
]
);
dst
[
37
]
=
decodeFloat16
(
src
[
45
]
);
dst
[
38
]
=
decodeFloat16
(
src
[
52
]
);
dst
[
39
]
=
decodeFloat16
(
src
[
54
]
);
dst
[
40
]
=
decodeFloat16
(
src
[
20
]
);
dst
[
41
]
=
decodeFloat16
(
src
[
22
]
);
dst
[
42
]
=
decodeFloat16
(
src
[
33
]
);
dst
[
43
]
=
decodeFloat16
(
src
[
38
]
);
dst
[
44
]
=
decodeFloat16
(
src
[
46
]
);
dst
[
45
]
=
decodeFloat16
(
src
[
51
]
);
dst
[
46
]
=
decodeFloat16
(
src
[
55
]
);
dst
[
47
]
=
decodeFloat16
(
src
[
60
]
);
dst
[
48
]
=
decodeFloat16
(
src
[
21
]
);
dst
[
49
]
=
decodeFloat16
(
src
[
34
]
);
dst
[
50
]
=
decodeFloat16
(
src
[
37
]
);
dst
[
51
]
=
decodeFloat16
(
src
[
47
]
);
dst
[
52
]
=
decodeFloat16
(
src
[
50
]
);
dst
[
53
]
=
decodeFloat16
(
src
[
56
]
);
dst
[
54
]
=
decodeFloat16
(
src
[
59
]
);
dst
[
55
]
=
decodeFloat16
(
src
[
61
]
);
dst
[
56
]
=
decodeFloat16
(
src
[
35
]
);
dst
[
57
]
=
decodeFloat16
(
src
[
36
]
);
dst
[
58
]
=
decodeFloat16
(
src
[
48
]
);
dst
[
59
]
=
decodeFloat16
(
src
[
49
]
);
dst
[
60
]
=
decodeFloat16
(
src
[
57
]
);
dst
[
61
]
=
decodeFloat16
(
src
[
58
]
);
dst
[
62
]
=
decodeFloat16
(
src
[
62
]
);
dst
[
63
]
=
decodeFloat16
(
src
[
63
]
);
dst
[
0
]
=
decodeFloat16
(
src
[
0
]
);
dst
[
1
]
=
decodeFloat16
(
src
[
1
]
);
dst
[
2
]
=
decodeFloat16
(
src
[
5
]
);
dst
[
3
]
=
decodeFloat16
(
src
[
6
]
);
dst
[
4
]
=
decodeFloat16
(
src
[
14
]
);
dst
[
5
]
=
decodeFloat16
(
src
[
15
]
);
dst
[
6
]
=
decodeFloat16
(
src
[
27
]
);
dst
[
7
]
=
decodeFloat16
(
src
[
28
]
);
dst
[
8
]
=
decodeFloat16
(
src
[
2
]
);
dst
[
9
]
=
decodeFloat16
(
src
[
4
]
);
dst
[
10
]
=
decodeFloat16
(
src
[
7
]
);
dst
[
11
]
=
decodeFloat16
(
src
[
13
]
);
dst
[
12
]
=
decodeFloat16
(
src
[
16
]
);
dst
[
13
]
=
decodeFloat16
(
src
[
26
]
);
dst
[
14
]
=
decodeFloat16
(
src
[
29
]
);
dst
[
15
]
=
decodeFloat16
(
src
[
42
]
);
dst
[
16
]
=
decodeFloat16
(
src
[
3
]
);
dst
[
17
]
=
decodeFloat16
(
src
[
8
]
);
dst
[
18
]
=
decodeFloat16
(
src
[
12
]
);
dst
[
19
]
=
decodeFloat16
(
src
[
17
]
);
dst
[
20
]
=
decodeFloat16
(
src
[
25
]
);
dst
[
21
]
=
decodeFloat16
(
src
[
30
]
);
dst
[
22
]
=
decodeFloat16
(
src
[
41
]
);
dst
[
23
]
=
decodeFloat16
(
src
[
43
]
);
dst
[
24
]
=
decodeFloat16
(
src
[
9
]
);
dst
[
25
]
=
decodeFloat16
(
src
[
11
]
);
dst
[
26
]
=
decodeFloat16
(
src
[
18
]
);
dst
[
27
]
=
decodeFloat16
(
src
[
24
]
);
dst
[
28
]
=
decodeFloat16
(
src
[
31
]
);
dst
[
29
]
=
decodeFloat16
(
src
[
40
]
);
dst
[
30
]
=
decodeFloat16
(
src
[
44
]
);
dst
[
31
]
=
decodeFloat16
(
src
[
53
]
);
dst
[
32
]
=
decodeFloat16
(
src
[
10
]
);
dst
[
33
]
=
decodeFloat16
(
src
[
19
]
);
dst
[
34
]
=
decodeFloat16
(
src
[
23
]
);
dst
[
35
]
=
decodeFloat16
(
src
[
32
]
);
dst
[
36
]
=
decodeFloat16
(
src
[
39
]
);
dst
[
37
]
=
decodeFloat16
(
src
[
45
]
);
dst
[
38
]
=
decodeFloat16
(
src
[
52
]
);
dst
[
39
]
=
decodeFloat16
(
src
[
54
]
);
dst
[
40
]
=
decodeFloat16
(
src
[
20
]
);
dst
[
41
]
=
decodeFloat16
(
src
[
22
]
);
dst
[
42
]
=
decodeFloat16
(
src
[
33
]
);
dst
[
43
]
=
decodeFloat16
(
src
[
38
]
);
dst
[
44
]
=
decodeFloat16
(
src
[
46
]
);
dst
[
45
]
=
decodeFloat16
(
src
[
51
]
);
dst
[
46
]
=
decodeFloat16
(
src
[
55
]
);
dst
[
47
]
=
decodeFloat16
(
src
[
60
]
);
dst
[
48
]
=
decodeFloat16
(
src
[
21
]
);
dst
[
49
]
=
decodeFloat16
(
src
[
34
]
);
dst
[
50
]
=
decodeFloat16
(
src
[
37
]
);
dst
[
51
]
=
decodeFloat16
(
src
[
47
]
);
dst
[
52
]
=
decodeFloat16
(
src
[
50
]
);
dst
[
53
]
=
decodeFloat16
(
src
[
56
]
);
dst
[
54
]
=
decodeFloat16
(
src
[
59
]
);
dst
[
55
]
=
decodeFloat16
(
src
[
61
]
);
dst
[
56
]
=
decodeFloat16
(
src
[
35
]
);
dst
[
57
]
=
decodeFloat16
(
src
[
36
]
);
dst
[
58
]
=
decodeFloat16
(
src
[
48
]
);
dst
[
59
]
=
decodeFloat16
(
src
[
49
]
);
dst
[
60
]
=
decodeFloat16
(
src
[
57
]
);
dst
[
61
]
=
decodeFloat16
(
src
[
58
]
);
dst
[
62
]
=
decodeFloat16
(
src
[
62
]
);
dst
[
63
]
=
decodeFloat16
(
src
[
63
]
);
}
function
dctInverse
(
data
)
{
const
a
=
.
5
*
Math
.
cos
(
3.14159
/
4.0
);
const
b
=
.
5
*
Math
.
cos
(
3.14159
/
16.0
);
const
c
=
.
5
*
Math
.
cos
(
3.14159
/
8.0
);
const
d
=
.
5
*
Math
.
cos
(
3
.
*
3.14159
/
16.0
);
const
e
=
.
5
*
Math
.
cos
(
5
.
*
3.14159
/
16.0
);
const
f
=
.
5
*
Math
.
cos
(
3
.
*
3.14159
/
8.0
);
const
g
=
.
5
*
Math
.
cos
(
7
.
*
3.14159
/
16.0
);
const
a
=
0.5
*
Math
.
cos
(
3.14159
/
4.0
);
const
b
=
0.5
*
Math
.
cos
(
3.14159
/
16.0
);
const
c
=
0.5
*
Math
.
cos
(
3.14159
/
8.0
);
const
d
=
0.5
*
Math
.
cos
(
3.0
*
3.14159
/
16.0
);
const
e
=
0.5
*
Math
.
cos
(
5.0
*
3.14159
/
16.0
);
const
f
=
0.5
*
Math
.
cos
(
3.0
*
3.14159
/
8.0
);
const
g
=
0.5
*
Math
.
cos
(
7.0
*
3.14159
/
16.0
);
var
alpha
=
new
Array
(
4
);
var
beta
=
new
Array
(
4
);
...
...
@@ -1059,31 +1059,31 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
var
rowPtr
=
row
*
8
;
alpha
[
0
]
=
c
*
data
[
rowPtr
+
2
];
alpha
[
1
]
=
f
*
data
[
rowPtr
+
2
];
alpha
[
2
]
=
c
*
data
[
rowPtr
+
6
];
alpha
[
3
]
=
f
*
data
[
rowPtr
+
6
];
alpha
[
0
]
=
c
*
data
[
rowPtr
+
2
];
alpha
[
1
]
=
f
*
data
[
rowPtr
+
2
];
alpha
[
2
]
=
c
*
data
[
rowPtr
+
6
];
alpha
[
3
]
=
f
*
data
[
rowPtr
+
6
];
beta
[
0
]
=
b
*
data
[
rowPtr
+
1
]
+
d
*
data
[
rowPtr
+
3
]
+
e
*
data
[
rowPtr
+
5
]
+
g
*
data
[
rowPtr
+
7
];
beta
[
1
]
=
d
*
data
[
rowPtr
+
1
]
-
g
*
data
[
rowPtr
+
3
]
-
b
*
data
[
rowPtr
+
5
]
-
e
*
data
[
rowPtr
+
7
];
beta
[
2
]
=
e
*
data
[
rowPtr
+
1
]
-
b
*
data
[
rowPtr
+
3
]
+
g
*
data
[
rowPtr
+
5
]
+
d
*
data
[
rowPtr
+
7
];
beta
[
3
]
=
g
*
data
[
rowPtr
+
1
]
-
e
*
data
[
rowPtr
+
3
]
+
d
*
data
[
rowPtr
+
5
]
-
b
*
data
[
rowPtr
+
7
];
theta
[
0
]
=
a
*
(
data
[
rowPtr
+
0
]
+
data
[
rowPtr
+
4
]
);
theta
[
3
]
=
a
*
(
data
[
rowPtr
+
0
]
-
data
[
rowPtr
+
4
]
);
theta
[
1
]
=
alpha
[
0
]
+
alpha
[
3
];
theta
[
2
]
=
alpha
[
1
]
-
alpha
[
2
];
theta
[
1
]
=
alpha
[
0
]
+
alpha
[
3
];
theta
[
2
]
=
alpha
[
1
]
-
alpha
[
2
];
gamma
[
0
]
=
theta
[
0
]
+
theta
[
1
];
gamma
[
1
]
=
theta
[
3
]
+
theta
[
2
];
gamma
[
2
]
=
theta
[
3
]
-
theta
[
2
];
gamma
[
3
]
=
theta
[
0
]
-
theta
[
1
];
data
[
rowPtr
+
0
]
=
gamma
[
0
]
+
beta
[
0
];
data
[
rowPtr
+
1
]
=
gamma
[
1
]
+
beta
[
1
];
data
[
rowPtr
+
2
]
=
gamma
[
2
]
+
beta
[
2
];
data
[
rowPtr
+
3
]
=
gamma
[
3
]
+
beta
[
3
];
data
[
rowPtr
+
4
]
=
gamma
[
3
]
-
beta
[
3
];
data
[
rowPtr
+
5
]
=
gamma
[
2
]
-
beta
[
2
];
data
[
rowPtr
+
6
]
=
gamma
[
1
]
-
beta
[
1
];
...
...
@@ -1093,29 +1093,29 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
for
(
var
column
=
0
;
column
<
8
;
++
column
)
{
alpha
[
0
]
=
c
*
data
[
16
+
column
];
alpha
[
1
]
=
f
*
data
[
16
+
column
];
alpha
[
2
]
=
c
*
data
[
48
+
column
];
alpha
[
3
]
=
f
*
data
[
48
+
column
];
alpha
[
0
]
=
c
*
data
[
16
+
column
];
alpha
[
1
]
=
f
*
data
[
16
+
column
];
alpha
[
2
]
=
c
*
data
[
48
+
column
];
alpha
[
3
]
=
f
*
data
[
48
+
column
];
beta
[
0
]
=
b
*
data
[
8
+
column
]
+
d
*
data
[
24
+
column
]
+
e
*
data
[
40
+
column
]
+
g
*
data
[
56
+
column
];
beta
[
1
]
=
d
*
data
[
8
+
column
]
-
g
*
data
[
24
+
column
]
-
b
*
data
[
40
+
column
]
-
e
*
data
[
56
+
column
];
beta
[
2
]
=
e
*
data
[
8
+
column
]
-
b
*
data
[
24
+
column
]
+
g
*
data
[
40
+
column
]
+
d
*
data
[
56
+
column
];
beta
[
3
]
=
g
*
data
[
8
+
column
]
-
e
*
data
[
24
+
column
]
+
d
*
data
[
40
+
column
]
-
b
*
data
[
56
+
column
];
beta
[
0
]
=
b
*
data
[
8
+
column
]
+
d
*
data
[
24
+
column
]
+
e
*
data
[
40
+
column
]
+
g
*
data
[
56
+
column
];
beta
[
1
]
=
d
*
data
[
8
+
column
]
-
g
*
data
[
24
+
column
]
-
b
*
data
[
40
+
column
]
-
e
*
data
[
56
+
column
];
beta
[
2
]
=
e
*
data
[
8
+
column
]
-
b
*
data
[
24
+
column
]
+
g
*
data
[
40
+
column
]
+
d
*
data
[
56
+
column
];
beta
[
3
]
=
g
*
data
[
8
+
column
]
-
e
*
data
[
24
+
column
]
+
d
*
data
[
40
+
column
]
-
b
*
data
[
56
+
column
];
theta
[
0
]
=
a
*
(
data
[
column
]
+
data
[
32
+
column
]
);
theta
[
3
]
=
a
*
(
data
[
column
]
-
data
[
32
+
column
]
);
theta
[
1
]
=
alpha
[
0
]
+
alpha
[
3
];
theta
[
2
]
=
alpha
[
1
]
-
alpha
[
2
];
theta
[
1
]
=
alpha
[
0
]
+
alpha
[
3
];
theta
[
2
]
=
alpha
[
1
]
-
alpha
[
2
];
gamma
[
0
]
=
theta
[
0
]
+
theta
[
1
];
gamma
[
1
]
=
theta
[
3
]
+
theta
[
2
];
gamma
[
2
]
=
theta
[
3
]
-
theta
[
2
];
gamma
[
3
]
=
theta
[
0
]
-
theta
[
1
];
data
[
column
]
=
gamma
[
0
]
+
beta
[
0
];
data
[
8
+
column
]
=
gamma
[
1
]
+
beta
[
1
];
data
[
0
+
column
]
=
gamma
[
0
]
+
beta
[
0
];
data
[
8
+
column
]
=
gamma
[
1
]
+
beta
[
1
];
data
[
16
+
column
]
=
gamma
[
2
]
+
beta
[
2
];
data
[
24
+
column
]
=
gamma
[
3
]
+
beta
[
3
];
...
...
@@ -1334,15 +1334,15 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
totalDcUncompressedCount
:
parseInt64
(
inDataView
,
inOffset
),
acCompression
:
parseInt64
(
inDataView
,
inOffset
)
}
}
;
if
(
dwaHeader
.
version
<
2
)
if
(
dwaHeader
.
version
<
2
)
throw
'
EXRLoader.parse:
'
+
EXRHeader
.
compression
+
'
version
'
+
dwaHeader
.
version
+
'
is unsupported
'
;
// Read channel ruleset information
var
channelRules
=
new
Array
();
var
ruleSize
=
parseUint16
(
inDataView
,
inOffset
)
-
INT16_SIZE
;
while
(
ruleSize
>
0
)
{
var
name
=
parseNullTerminatedString
(
inDataView
.
buffer
,
inOffset
);
...
...
@@ -1352,10 +1352,10 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
var
index
=
new
Int8Array
(
[
csc
]
)[
0
];
var
type
=
parseUint8
(
inDataView
,
inOffset
);
channelRules
.
push
(
{
name
:
name
,
index
:
index
,
type
:
type
,
channelRules
.
push
(
{
name
:
name
,
index
:
index
,
type
:
type
,
compression
:
compression
,
}
);
...
...
@@ -1443,7 +1443,7 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
array
:
info
.
array
,
offset
:
inOffset
,
size
:
dwaHeader
.
dcCompressedSize
}
}
;
var
dcBuffer
=
new
Uint16Array
(
uncompressZIP
(
zlibInfo
).
buffer
);
inOffset
.
value
+=
dwaHeader
.
dcCompressedSize
;
...
...
@@ -1505,20 +1505,22 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
for
(
var
byte
=
0
;
byte
<
INT16_SIZE
*
cd
.
type
;
++
byte
)
{
outBuffer
[
rowOffsetBytes
++
]
=
rleBuffer
[
rleOffset
+
byte
*
cd
.
width
*
cd
.
height
];
outBuffer
[
rowOffsetBytes
++
]
=
rleBuffer
[
rleOffset
+
byte
*
cd
.
width
*
cd
.
height
];
}
rleOffset
++
rleOffset
++
;
}
row
++
;
row
++
;
}
break
;
case
LOSSY_DCT
:
// skip
default
:
throw
'
EXRLoader.parse: unsupported channel compression
'
;
...
...
@@ -1641,45 +1643,60 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
}
// https://stackoverflow.com/questions/32633585/how-do-you-convert-to-half-floats-in-javascript
var
encodeFloat16
=
(
function
()
{
var
floatView
=
new
Float32Array
(
1
);
var
int32View
=
new
Int32Array
(
floatView
.
buffer
);
return
function
toHalf
(
fval
)
{
floatView
[
0
]
=
fval
;
var
fbits
=
int32View
[
0
];
var
sign
=
(
fbits
>>
16
)
&
0x8000
;
// sign only
var
val
=
(
fbits
&
0x7fffffff
)
+
0x1000
;
// rounded value
if
(
val
>=
0x47800000
)
{
// might be or become NaN/Inf
if
(
(
fbits
&
0x7fffffff
)
>=
0x47800000
)
{
// is or must become NaN/Inf
if
(
val
<
0x7f800000
)
{
// was value but too large
return
sign
|
0x7c00
;
// make it +/-Inf
}
return
sign
|
0x7c00
|
// remains +/-Inf or NaN
(
fbits
&
0x007fffff
)
>>
13
;
// keep NaN (and Inf) bits
var
encodeFloat16
=
(
function
()
{
// Source: http://gamedev.stackexchange.com/questions/17326/conversion-of-a-number-from-single-precision-floating-point-representation-to-a/17410#17410
var
floatView
=
new
Float32Array
(
1
);
var
int32View
=
new
Int32Array
(
floatView
.
buffer
);
/* This method is faster than the OpenEXR implementation (very often
* used, eg. in Ogre), with the additional benefit of rounding, inspired
* by James Tursa?s half-precision code. */
return
function
toHalf
(
val
)
{
floatView
[
0
]
=
val
;
var
x
=
int32View
[
0
];
var
bits
=
(
x
>>
16
)
&
0x8000
;
/* Get the sign */
var
m
=
(
x
>>
12
)
&
0x07ff
;
/* Keep one extra bit for rounding */
var
e
=
(
x
>>
23
)
&
0xff
;
/* Using int is faster here */
/* If zero, or denormal, or exponent underflows too much for a denormal
* half, return signed zero. */
if
(
e
<
103
)
return
bits
;
/* If NaN, return NaN. If Inf or exponent overflow, return Inf. */
if
(
e
>
142
)
{
bits
|=
0x7c00
;
/* If exponent was 0xff and one mantissa bit was set, it means NaN,
* not Inf, so make sure we set one mantissa bit too. */
bits
|=
(
(
e
==
255
)
?
0
:
1
)
&&
(
x
&
0x007fffff
);
return
bits
;
}
/* If exponent underflows but not too much, return a denormal */
if
(
e
<
113
)
{
m
|=
0x0800
;
/* Extra rounding may overflow and set mantissa to 0 and exponent
* to 1, which is OK. */
bits
|=
(
m
>>
(
114
-
e
)
)
+
(
(
m
>>
(
113
-
e
)
)
&
1
);
return
bits
;
}
return
sign
|
0x7bff
;
// unrounded not quite Inf
}
if
(
val
>=
0x38800000
)
{
// remains normalized value
return
sign
|
val
-
0x38000000
>>
13
;
// exp - 127 + 15
}
if
(
val
<
0x33000000
)
{
// too small for subnormal
return
sign
;
// becomes +/-0
}
val
=
(
fbits
&
0x7fffffff
)
>>
23
;
// tmp exp for subnormal calc
return
sign
|
(
(
fbits
&
0x7fffff
|
0x800000
)
// add subnormal bit
+
(
0x800000
>>>
val
-
102
)
// round depending on cut off
>>
126
-
val
);
// div by 2^(1-(exp-127+15)) and >> 13 | exp=
bits
|=
(
(
e
-
112
)
<<
10
)
|
(
m
>>
1
);
/* Extra rounding. An overflow will set mantissa to 0 and increment
* the exponent, which is OK. */
bits
+=
m
&
1
;
return
bits
;
};
}
()
);
}
)();
function
parseUint16
(
dataView
,
offset
)
{
...
...
@@ -1925,7 +1942,7 @@ THREE.EXRLoader.prototype = Object.assign( Object.create( THREE.DataTextureLoade
scanlineBlockSize
=
256
;
uncompress
=
uncompressDWA
;
break
;
default
:
throw
'
EXRLoader.parse:
'
+
EXRHeader
.
compression
+
'
is unsupported
'
;
...
...
examples/jsm/loaders/EXRLoader.js
浏览文件 @
ca79fec5
...
...
@@ -756,7 +756,7 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
var
count
=
-
l
;
size
-=
count
+
1
;
for
(
var
i
=
0
;
i
<
count
;
i
++
)
{
out
.
push
(
reader
.
getUint8
(
p
++
)
);
...
...
@@ -768,7 +768,7 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
var
count
=
l
;
size
-=
2
;
var
value
=
reader
.
getUint8
(
p
++
);
for
(
var
i
=
0
;
i
<
count
+
1
;
i
++
)
{
...
...
@@ -799,7 +799,7 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
var
numBlocksY
=
Math
.
ceil
(
height
/
8.0
);
var
leftoverX
=
width
-
(
numBlocksX
-
1
)
*
8
;
var
leftoverY
=
height
-
(
numBlocksY
-
1
)
*
8
;
var
currAcComp
=
{
value
:
0
};
var
currDcComp
=
new
Array
(
numComp
);
var
dctData
=
new
Array
(
numComp
);
...
...
@@ -836,7 +836,7 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
halfZigBlock
[
comp
].
fill
(
0
);
// set block DC component
halfZigBlock
[
comp
][
0
]
=
dcBuffer
[
currDcComp
[
comp
]
++
];
halfZigBlock
[
comp
][
0
]
=
dcBuffer
[
currDcComp
[
comp
]
++
];
// set block AC components
unRleAC
(
currAcComp
,
acBuffer
,
halfZigBlock
[
comp
]
);
...
...
@@ -868,13 +868,13 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
let
type
=
channelData
[
cscSet
.
idx
[
comp
]
].
type
;
for
(
let
y
=
8
*
blocky
;
y
<
8
*
blocky
+
maxY
;
++
y
)
{
offset
=
rowOffsets
[
comp
][
y
];
for
(
let
blockx
=
0
;
blockx
<
numFullBlocksX
;
++
blockx
)
{
let
src
=
blockx
*
64
+
(
(
y
&
0x7
)
*
8
);
dataView
.
setUint16
(
offset
+
0
*
INT16_SIZE
*
type
,
rowBlock
[
comp
][
src
+
0
],
true
);
dataView
.
setUint16
(
offset
+
1
*
INT16_SIZE
*
type
,
rowBlock
[
comp
][
src
+
1
],
true
);
dataView
.
setUint16
(
offset
+
2
*
INT16_SIZE
*
type
,
rowBlock
[
comp
][
src
+
2
],
true
);
...
...
@@ -886,29 +886,29 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
dataView
.
setUint16
(
offset
+
7
*
INT16_SIZE
*
type
,
rowBlock
[
comp
][
src
+
7
],
true
);
offset
+=
8
*
INT16_SIZE
*
type
;
}
}
// handle partial X blocks
if
(
numFullBlocksX
!=
numBlocksX
)
{
for
(
let
y
=
8
*
blocky
;
y
<
8
*
blocky
+
maxY
;
++
y
)
{
let
offset
=
rowOffsets
[
comp
][
y
]
+
8
*
numFullBlocksX
*
INT16_SIZE
*
type
;
let
src
=
numFullBlocksX
*
64
+
(
(
y
&
0x7
)
*
8
);
for
(
let
x
=
0
;
x
<
maxX
;
++
x
)
{
dataView
.
setUint16
(
offset
+
x
*
INT16_SIZE
*
type
,
rowBlock
[
comp
][
src
+
x
],
true
);
}
}
}
}
// comp
}
// blocky
...
...
@@ -966,11 +966,11 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
}
else
{
halfZigBlock
[
dctComp
]
=
acValue
;
dctComp
++
;
dctComp
++
;
}
currAcComp
.
value
++
;
currAcComp
.
value
++
;
}
...
...
@@ -978,88 +978,88 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
function
unZigZag
(
src
,
dst
)
{
dst
[
0
]
=
decodeFloat16
(
src
[
0
]
);
dst
[
1
]
=
decodeFloat16
(
src
[
1
]
);
dst
[
2
]
=
decodeFloat16
(
src
[
5
]
);
dst
[
3
]
=
decodeFloat16
(
src
[
6
]
);
dst
[
4
]
=
decodeFloat16
(
src
[
14
]
);
dst
[
5
]
=
decodeFloat16
(
src
[
15
]
);
dst
[
6
]
=
decodeFloat16
(
src
[
27
]
);
dst
[
7
]
=
decodeFloat16
(
src
[
28
]
);
dst
[
8
]
=
decodeFloat16
(
src
[
2
]
);
dst
[
9
]
=
decodeFloat16
(
src
[
4
]
);
dst
[
10
]
=
decodeFloat16
(
src
[
7
]
);
dst
[
11
]
=
decodeFloat16
(
src
[
13
]
);
dst
[
12
]
=
decodeFloat16
(
src
[
16
]
);
dst
[
13
]
=
decodeFloat16
(
src
[
26
]
);
dst
[
14
]
=
decodeFloat16
(
src
[
29
]
);
dst
[
15
]
=
decodeFloat16
(
src
[
42
]
);
dst
[
16
]
=
decodeFloat16
(
src
[
3
]
);
dst
[
17
]
=
decodeFloat16
(
src
[
8
]
);
dst
[
18
]
=
decodeFloat16
(
src
[
12
]
);
dst
[
19
]
=
decodeFloat16
(
src
[
17
]
);
dst
[
20
]
=
decodeFloat16
(
src
[
25
]
);
dst
[
21
]
=
decodeFloat16
(
src
[
30
]
);
dst
[
22
]
=
decodeFloat16
(
src
[
41
]
);
dst
[
23
]
=
decodeFloat16
(
src
[
43
]
);
dst
[
24
]
=
decodeFloat16
(
src
[
9
]
);
dst
[
25
]
=
decodeFloat16
(
src
[
11
]
);
dst
[
26
]
=
decodeFloat16
(
src
[
18
]
);
dst
[
27
]
=
decodeFloat16
(
src
[
24
]
);
dst
[
28
]
=
decodeFloat16
(
src
[
31
]
);
dst
[
29
]
=
decodeFloat16
(
src
[
40
]
);
dst
[
30
]
=
decodeFloat16
(
src
[
44
]
);
dst
[
31
]
=
decodeFloat16
(
src
[
53
]
);
dst
[
32
]
=
decodeFloat16
(
src
[
10
]
);
dst
[
33
]
=
decodeFloat16
(
src
[
19
]
);
dst
[
34
]
=
decodeFloat16
(
src
[
23
]
);
dst
[
35
]
=
decodeFloat16
(
src
[
32
]
);
dst
[
36
]
=
decodeFloat16
(
src
[
39
]
);
dst
[
37
]
=
decodeFloat16
(
src
[
45
]
);
dst
[
38
]
=
decodeFloat16
(
src
[
52
]
);
dst
[
39
]
=
decodeFloat16
(
src
[
54
]
);
dst
[
40
]
=
decodeFloat16
(
src
[
20
]
);
dst
[
41
]
=
decodeFloat16
(
src
[
22
]
);
dst
[
42
]
=
decodeFloat16
(
src
[
33
]
);
dst
[
43
]
=
decodeFloat16
(
src
[
38
]
);
dst
[
44
]
=
decodeFloat16
(
src
[
46
]
);
dst
[
45
]
=
decodeFloat16
(
src
[
51
]
);
dst
[
46
]
=
decodeFloat16
(
src
[
55
]
);
dst
[
47
]
=
decodeFloat16
(
src
[
60
]
);
dst
[
48
]
=
decodeFloat16
(
src
[
21
]
);
dst
[
49
]
=
decodeFloat16
(
src
[
34
]
);
dst
[
50
]
=
decodeFloat16
(
src
[
37
]
);
dst
[
51
]
=
decodeFloat16
(
src
[
47
]
);
dst
[
52
]
=
decodeFloat16
(
src
[
50
]
);
dst
[
53
]
=
decodeFloat16
(
src
[
56
]
);
dst
[
54
]
=
decodeFloat16
(
src
[
59
]
);
dst
[
55
]
=
decodeFloat16
(
src
[
61
]
);
dst
[
56
]
=
decodeFloat16
(
src
[
35
]
);
dst
[
57
]
=
decodeFloat16
(
src
[
36
]
);
dst
[
58
]
=
decodeFloat16
(
src
[
48
]
);
dst
[
59
]
=
decodeFloat16
(
src
[
49
]
);
dst
[
60
]
=
decodeFloat16
(
src
[
57
]
);
dst
[
61
]
=
decodeFloat16
(
src
[
58
]
);
dst
[
62
]
=
decodeFloat16
(
src
[
62
]
);
dst
[
63
]
=
decodeFloat16
(
src
[
63
]
);
dst
[
0
]
=
decodeFloat16
(
src
[
0
]
);
dst
[
1
]
=
decodeFloat16
(
src
[
1
]
);
dst
[
2
]
=
decodeFloat16
(
src
[
5
]
);
dst
[
3
]
=
decodeFloat16
(
src
[
6
]
);
dst
[
4
]
=
decodeFloat16
(
src
[
14
]
);
dst
[
5
]
=
decodeFloat16
(
src
[
15
]
);
dst
[
6
]
=
decodeFloat16
(
src
[
27
]
);
dst
[
7
]
=
decodeFloat16
(
src
[
28
]
);
dst
[
8
]
=
decodeFloat16
(
src
[
2
]
);
dst
[
9
]
=
decodeFloat16
(
src
[
4
]
);
dst
[
10
]
=
decodeFloat16
(
src
[
7
]
);
dst
[
11
]
=
decodeFloat16
(
src
[
13
]
);
dst
[
12
]
=
decodeFloat16
(
src
[
16
]
);
dst
[
13
]
=
decodeFloat16
(
src
[
26
]
);
dst
[
14
]
=
decodeFloat16
(
src
[
29
]
);
dst
[
15
]
=
decodeFloat16
(
src
[
42
]
);
dst
[
16
]
=
decodeFloat16
(
src
[
3
]
);
dst
[
17
]
=
decodeFloat16
(
src
[
8
]
);
dst
[
18
]
=
decodeFloat16
(
src
[
12
]
);
dst
[
19
]
=
decodeFloat16
(
src
[
17
]
);
dst
[
20
]
=
decodeFloat16
(
src
[
25
]
);
dst
[
21
]
=
decodeFloat16
(
src
[
30
]
);
dst
[
22
]
=
decodeFloat16
(
src
[
41
]
);
dst
[
23
]
=
decodeFloat16
(
src
[
43
]
);
dst
[
24
]
=
decodeFloat16
(
src
[
9
]
);
dst
[
25
]
=
decodeFloat16
(
src
[
11
]
);
dst
[
26
]
=
decodeFloat16
(
src
[
18
]
);
dst
[
27
]
=
decodeFloat16
(
src
[
24
]
);
dst
[
28
]
=
decodeFloat16
(
src
[
31
]
);
dst
[
29
]
=
decodeFloat16
(
src
[
40
]
);
dst
[
30
]
=
decodeFloat16
(
src
[
44
]
);
dst
[
31
]
=
decodeFloat16
(
src
[
53
]
);
dst
[
32
]
=
decodeFloat16
(
src
[
10
]
);
dst
[
33
]
=
decodeFloat16
(
src
[
19
]
);
dst
[
34
]
=
decodeFloat16
(
src
[
23
]
);
dst
[
35
]
=
decodeFloat16
(
src
[
32
]
);
dst
[
36
]
=
decodeFloat16
(
src
[
39
]
);
dst
[
37
]
=
decodeFloat16
(
src
[
45
]
);
dst
[
38
]
=
decodeFloat16
(
src
[
52
]
);
dst
[
39
]
=
decodeFloat16
(
src
[
54
]
);
dst
[
40
]
=
decodeFloat16
(
src
[
20
]
);
dst
[
41
]
=
decodeFloat16
(
src
[
22
]
);
dst
[
42
]
=
decodeFloat16
(
src
[
33
]
);
dst
[
43
]
=
decodeFloat16
(
src
[
38
]
);
dst
[
44
]
=
decodeFloat16
(
src
[
46
]
);
dst
[
45
]
=
decodeFloat16
(
src
[
51
]
);
dst
[
46
]
=
decodeFloat16
(
src
[
55
]
);
dst
[
47
]
=
decodeFloat16
(
src
[
60
]
);
dst
[
48
]
=
decodeFloat16
(
src
[
21
]
);
dst
[
49
]
=
decodeFloat16
(
src
[
34
]
);
dst
[
50
]
=
decodeFloat16
(
src
[
37
]
);
dst
[
51
]
=
decodeFloat16
(
src
[
47
]
);
dst
[
52
]
=
decodeFloat16
(
src
[
50
]
);
dst
[
53
]
=
decodeFloat16
(
src
[
56
]
);
dst
[
54
]
=
decodeFloat16
(
src
[
59
]
);
dst
[
55
]
=
decodeFloat16
(
src
[
61
]
);
dst
[
56
]
=
decodeFloat16
(
src
[
35
]
);
dst
[
57
]
=
decodeFloat16
(
src
[
36
]
);
dst
[
58
]
=
decodeFloat16
(
src
[
48
]
);
dst
[
59
]
=
decodeFloat16
(
src
[
49
]
);
dst
[
60
]
=
decodeFloat16
(
src
[
57
]
);
dst
[
61
]
=
decodeFloat16
(
src
[
58
]
);
dst
[
62
]
=
decodeFloat16
(
src
[
62
]
);
dst
[
63
]
=
decodeFloat16
(
src
[
63
]
);
}
function
dctInverse
(
data
)
{
const
a
=
.
5
*
Math
.
cos
(
3.14159
/
4.0
);
const
b
=
.
5
*
Math
.
cos
(
3.14159
/
16.0
);
const
c
=
.
5
*
Math
.
cos
(
3.14159
/
8.0
);
const
d
=
.
5
*
Math
.
cos
(
3
.
*
3.14159
/
16.0
);
const
e
=
.
5
*
Math
.
cos
(
5
.
*
3.14159
/
16.0
);
const
f
=
.
5
*
Math
.
cos
(
3
.
*
3.14159
/
8.0
);
const
g
=
.
5
*
Math
.
cos
(
7
.
*
3.14159
/
16.0
);
const
a
=
0.5
*
Math
.
cos
(
3.14159
/
4.0
);
const
b
=
0.5
*
Math
.
cos
(
3.14159
/
16.0
);
const
c
=
0.5
*
Math
.
cos
(
3.14159
/
8.0
);
const
d
=
0.5
*
Math
.
cos
(
3.0
*
3.14159
/
16.0
);
const
e
=
0.5
*
Math
.
cos
(
5.0
*
3.14159
/
16.0
);
const
f
=
0.5
*
Math
.
cos
(
3.0
*
3.14159
/
8.0
);
const
g
=
0.5
*
Math
.
cos
(
7.0
*
3.14159
/
16.0
);
var
alpha
=
new
Array
(
4
);
var
beta
=
new
Array
(
4
);
...
...
@@ -1070,31 +1070,31 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
var
rowPtr
=
row
*
8
;
alpha
[
0
]
=
c
*
data
[
rowPtr
+
2
];
alpha
[
1
]
=
f
*
data
[
rowPtr
+
2
];
alpha
[
2
]
=
c
*
data
[
rowPtr
+
6
];
alpha
[
3
]
=
f
*
data
[
rowPtr
+
6
];
alpha
[
0
]
=
c
*
data
[
rowPtr
+
2
];
alpha
[
1
]
=
f
*
data
[
rowPtr
+
2
];
alpha
[
2
]
=
c
*
data
[
rowPtr
+
6
];
alpha
[
3
]
=
f
*
data
[
rowPtr
+
6
];
beta
[
0
]
=
b
*
data
[
rowPtr
+
1
]
+
d
*
data
[
rowPtr
+
3
]
+
e
*
data
[
rowPtr
+
5
]
+
g
*
data
[
rowPtr
+
7
];
beta
[
1
]
=
d
*
data
[
rowPtr
+
1
]
-
g
*
data
[
rowPtr
+
3
]
-
b
*
data
[
rowPtr
+
5
]
-
e
*
data
[
rowPtr
+
7
];
beta
[
2
]
=
e
*
data
[
rowPtr
+
1
]
-
b
*
data
[
rowPtr
+
3
]
+
g
*
data
[
rowPtr
+
5
]
+
d
*
data
[
rowPtr
+
7
];
beta
[
3
]
=
g
*
data
[
rowPtr
+
1
]
-
e
*
data
[
rowPtr
+
3
]
+
d
*
data
[
rowPtr
+
5
]
-
b
*
data
[
rowPtr
+
7
];
theta
[
0
]
=
a
*
(
data
[
rowPtr
+
0
]
+
data
[
rowPtr
+
4
]
);
theta
[
3
]
=
a
*
(
data
[
rowPtr
+
0
]
-
data
[
rowPtr
+
4
]
);
theta
[
1
]
=
alpha
[
0
]
+
alpha
[
3
];
theta
[
2
]
=
alpha
[
1
]
-
alpha
[
2
];
theta
[
1
]
=
alpha
[
0
]
+
alpha
[
3
];
theta
[
2
]
=
alpha
[
1
]
-
alpha
[
2
];
gamma
[
0
]
=
theta
[
0
]
+
theta
[
1
];
gamma
[
1
]
=
theta
[
3
]
+
theta
[
2
];
gamma
[
2
]
=
theta
[
3
]
-
theta
[
2
];
gamma
[
3
]
=
theta
[
0
]
-
theta
[
1
];
data
[
rowPtr
+
0
]
=
gamma
[
0
]
+
beta
[
0
];
data
[
rowPtr
+
1
]
=
gamma
[
1
]
+
beta
[
1
];
data
[
rowPtr
+
2
]
=
gamma
[
2
]
+
beta
[
2
];
data
[
rowPtr
+
3
]
=
gamma
[
3
]
+
beta
[
3
];
data
[
rowPtr
+
4
]
=
gamma
[
3
]
-
beta
[
3
];
data
[
rowPtr
+
5
]
=
gamma
[
2
]
-
beta
[
2
];
data
[
rowPtr
+
6
]
=
gamma
[
1
]
-
beta
[
1
];
...
...
@@ -1104,29 +1104,29 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
for
(
var
column
=
0
;
column
<
8
;
++
column
)
{
alpha
[
0
]
=
c
*
data
[
16
+
column
];
alpha
[
1
]
=
f
*
data
[
16
+
column
];
alpha
[
2
]
=
c
*
data
[
48
+
column
];
alpha
[
3
]
=
f
*
data
[
48
+
column
];
alpha
[
0
]
=
c
*
data
[
16
+
column
];
alpha
[
1
]
=
f
*
data
[
16
+
column
];
alpha
[
2
]
=
c
*
data
[
48
+
column
];
alpha
[
3
]
=
f
*
data
[
48
+
column
];
beta
[
0
]
=
b
*
data
[
8
+
column
]
+
d
*
data
[
24
+
column
]
+
e
*
data
[
40
+
column
]
+
g
*
data
[
56
+
column
];
beta
[
1
]
=
d
*
data
[
8
+
column
]
-
g
*
data
[
24
+
column
]
-
b
*
data
[
40
+
column
]
-
e
*
data
[
56
+
column
];
beta
[
2
]
=
e
*
data
[
8
+
column
]
-
b
*
data
[
24
+
column
]
+
g
*
data
[
40
+
column
]
+
d
*
data
[
56
+
column
];
beta
[
3
]
=
g
*
data
[
8
+
column
]
-
e
*
data
[
24
+
column
]
+
d
*
data
[
40
+
column
]
-
b
*
data
[
56
+
column
];
beta
[
0
]
=
b
*
data
[
8
+
column
]
+
d
*
data
[
24
+
column
]
+
e
*
data
[
40
+
column
]
+
g
*
data
[
56
+
column
];
beta
[
1
]
=
d
*
data
[
8
+
column
]
-
g
*
data
[
24
+
column
]
-
b
*
data
[
40
+
column
]
-
e
*
data
[
56
+
column
];
beta
[
2
]
=
e
*
data
[
8
+
column
]
-
b
*
data
[
24
+
column
]
+
g
*
data
[
40
+
column
]
+
d
*
data
[
56
+
column
];
beta
[
3
]
=
g
*
data
[
8
+
column
]
-
e
*
data
[
24
+
column
]
+
d
*
data
[
40
+
column
]
-
b
*
data
[
56
+
column
];
theta
[
0
]
=
a
*
(
data
[
column
]
+
data
[
32
+
column
]
);
theta
[
3
]
=
a
*
(
data
[
column
]
-
data
[
32
+
column
]
);
theta
[
1
]
=
alpha
[
0
]
+
alpha
[
3
];
theta
[
2
]
=
alpha
[
1
]
-
alpha
[
2
];
theta
[
1
]
=
alpha
[
0
]
+
alpha
[
3
];
theta
[
2
]
=
alpha
[
1
]
-
alpha
[
2
];
gamma
[
0
]
=
theta
[
0
]
+
theta
[
1
];
gamma
[
1
]
=
theta
[
3
]
+
theta
[
2
];
gamma
[
2
]
=
theta
[
3
]
-
theta
[
2
];
gamma
[
3
]
=
theta
[
0
]
-
theta
[
1
];
data
[
column
]
=
gamma
[
0
]
+
beta
[
0
];
data
[
8
+
column
]
=
gamma
[
1
]
+
beta
[
1
];
data
[
0
+
column
]
=
gamma
[
0
]
+
beta
[
0
];
data
[
8
+
column
]
=
gamma
[
1
]
+
beta
[
1
];
data
[
16
+
column
]
=
gamma
[
2
]
+
beta
[
2
];
data
[
24
+
column
]
=
gamma
[
3
]
+
beta
[
3
];
...
...
@@ -1345,15 +1345,15 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
totalDcUncompressedCount
:
parseInt64
(
inDataView
,
inOffset
),
acCompression
:
parseInt64
(
inDataView
,
inOffset
)
}
}
;
if
(
dwaHeader
.
version
<
2
)
if
(
dwaHeader
.
version
<
2
)
throw
'
EXRLoader.parse:
'
+
EXRHeader
.
compression
+
'
version
'
+
dwaHeader
.
version
+
'
is unsupported
'
;
// Read channel ruleset information
var
channelRules
=
new
Array
();
var
ruleSize
=
parseUint16
(
inDataView
,
inOffset
)
-
INT16_SIZE
;
while
(
ruleSize
>
0
)
{
var
name
=
parseNullTerminatedString
(
inDataView
.
buffer
,
inOffset
);
...
...
@@ -1363,10 +1363,10 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
var
index
=
new
Int8Array
(
[
csc
]
)[
0
];
var
type
=
parseUint8
(
inDataView
,
inOffset
);
channelRules
.
push
(
{
name
:
name
,
index
:
index
,
type
:
type
,
channelRules
.
push
(
{
name
:
name
,
index
:
index
,
type
:
type
,
compression
:
compression
,
}
);
...
...
@@ -1454,7 +1454,7 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
array
:
info
.
array
,
offset
:
inOffset
,
size
:
dwaHeader
.
dcCompressedSize
}
}
;
var
dcBuffer
=
new
Uint16Array
(
uncompressZIP
(
zlibInfo
).
buffer
);
inOffset
.
value
+=
dwaHeader
.
dcCompressedSize
;
...
...
@@ -1516,20 +1516,22 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
for
(
var
byte
=
0
;
byte
<
INT16_SIZE
*
cd
.
type
;
++
byte
)
{
outBuffer
[
rowOffsetBytes
++
]
=
rleBuffer
[
rleOffset
+
byte
*
cd
.
width
*
cd
.
height
];
outBuffer
[
rowOffsetBytes
++
]
=
rleBuffer
[
rleOffset
+
byte
*
cd
.
width
*
cd
.
height
];
}
rleOffset
++
rleOffset
++
;
}
row
++
;
row
++
;
}
break
;
case
LOSSY_DCT
:
// skip
default
:
throw
'
EXRLoader.parse: unsupported channel compression
'
;
...
...
@@ -1652,45 +1654,60 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
}
// https://stackoverflow.com/questions/32633585/how-do-you-convert-to-half-floats-in-javascript
var
encodeFloat16
=
(
function
()
{
var
floatView
=
new
Float32Array
(
1
);
var
int32View
=
new
Int32Array
(
floatView
.
buffer
);
return
function
toHalf
(
fval
)
{
floatView
[
0
]
=
fval
;
var
fbits
=
int32View
[
0
];
var
sign
=
(
fbits
>>
16
)
&
0x8000
;
// sign only
var
val
=
(
fbits
&
0x7fffffff
)
+
0x1000
;
// rounded value
if
(
val
>=
0x47800000
)
{
// might be or become NaN/Inf
if
(
(
fbits
&
0x7fffffff
)
>=
0x47800000
)
{
// is or must become NaN/Inf
if
(
val
<
0x7f800000
)
{
// was value but too large
return
sign
|
0x7c00
;
// make it +/-Inf
}
return
sign
|
0x7c00
|
// remains +/-Inf or NaN
(
fbits
&
0x007fffff
)
>>
13
;
// keep NaN (and Inf) bits
var
encodeFloat16
=
(
function
()
{
// Source: http://gamedev.stackexchange.com/questions/17326/conversion-of-a-number-from-single-precision-floating-point-representation-to-a/17410#17410
var
floatView
=
new
Float32Array
(
1
);
var
int32View
=
new
Int32Array
(
floatView
.
buffer
);
/* This method is faster than the OpenEXR implementation (very often
* used, eg. in Ogre), with the additional benefit of rounding, inspired
* by James Tursa?s half-precision code. */
return
function
toHalf
(
val
)
{
floatView
[
0
]
=
val
;
var
x
=
int32View
[
0
];
var
bits
=
(
x
>>
16
)
&
0x8000
;
/* Get the sign */
var
m
=
(
x
>>
12
)
&
0x07ff
;
/* Keep one extra bit for rounding */
var
e
=
(
x
>>
23
)
&
0xff
;
/* Using int is faster here */
/* If zero, or denormal, or exponent underflows too much for a denormal
* half, return signed zero. */
if
(
e
<
103
)
return
bits
;
/* If NaN, return NaN. If Inf or exponent overflow, return Inf. */
if
(
e
>
142
)
{
bits
|=
0x7c00
;
/* If exponent was 0xff and one mantissa bit was set, it means NaN,
* not Inf, so make sure we set one mantissa bit too. */
bits
|=
(
(
e
==
255
)
?
0
:
1
)
&&
(
x
&
0x007fffff
);
return
bits
;
}
/* If exponent underflows but not too much, return a denormal */
if
(
e
<
113
)
{
m
|=
0x0800
;
/* Extra rounding may overflow and set mantissa to 0 and exponent
* to 1, which is OK. */
bits
|=
(
m
>>
(
114
-
e
)
)
+
(
(
m
>>
(
113
-
e
)
)
&
1
);
return
bits
;
}
return
sign
|
0x7bff
;
// unrounded not quite Inf
}
if
(
val
>=
0x38800000
)
{
// remains normalized value
return
sign
|
val
-
0x38000000
>>
13
;
// exp - 127 + 15
}
if
(
val
<
0x33000000
)
{
// too small for subnormal
return
sign
;
// becomes +/-0
}
val
=
(
fbits
&
0x7fffffff
)
>>
23
;
// tmp exp for subnormal calc
return
sign
|
(
(
fbits
&
0x7fffff
|
0x800000
)
// add subnormal bit
+
(
0x800000
>>>
val
-
102
)
// round depending on cut off
>>
126
-
val
);
// div by 2^(1-(exp-127+15)) and >> 13 | exp=
bits
|=
(
(
e
-
112
)
<<
10
)
|
(
m
>>
1
);
/* Extra rounding. An overflow will set mantissa to 0 and increment
* the exponent, which is OK. */
bits
+=
m
&
1
;
return
bits
;
};
}
()
);
}
)();
function
parseUint16
(
dataView
,
offset
)
{
...
...
@@ -1936,7 +1953,7 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
scanlineBlockSize
=
256
;
uncompress
=
uncompressDWA
;
break
;
default
:
throw
'
EXRLoader.parse:
'
+
EXRHeader
.
compression
+
'
is unsupported
'
;
...
...
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