Hi,
I have been testing the updated Psychtoolbox 2.55 and an error is
reported by LoadClutTest and ClutTest.
I am also a bit confused about references to the "gamma table" when
testing "LoadClut",
unless the "gamma table" and the "colour lookup table" are the same
thing.
I am not sure how many people will be running iPTB 2.55 in "Classic
mode" on a G5,
but I have attached details for Denis and Allen to look at, if
interested.
Perhaps 10-bit DACs are not properly supported in Classic mode.
-- David Jones
»loadcluttest
LoadClutTest
*** 's Classic Mac OS Compatibility, Mac OS 9.2.2
************************
PowerPC processor 0x13c, 332.169 Mflop/s
Psychtoolbox 2.55, 12 March 2005, Matlab 5.2.1.1421
FileSharing is on.
No serial port arbitration.
*** Screen 0
*************************************************************
"" (.Display_Video_Apple_BB200 version 1)
10 bit dacs. 2560x1600 60 Hz.
Prefs: cscGetNextResolution, SetClutDriverWaitsForBlanking 0.
- - - - - - - - - - - - - - - - - - - - - - - -
-
8-bit gamma table. pixelSize 8. Success! GetClut==LoadClut at 8 bits.
8-bit gamma table. pixelSize 16. Success! GetClut==LoadClut at 8 bits.
8-bit gamma table. pixelSize 32. Success! GetClut==LoadClut at 8 bits.
10-bit gamma table. pixelSize 8. Failed! Values read differed (by up
to 1023) from what was written:
0: LoadClut:[ 0 1023 230] vs. GetClut:[ 0 0 0]
1: LoadClut:[ 4 1019 492] vs. GetClut:[ 4 4 4]
2: LoadClut:[ 8 1015 853] vs. GetClut:[ 8 8 8]
3: LoadClut:[ 12 1011 451] vs. GetClut:[ 12 12 12]
4: LoadClut:[ 16 1007 132] vs. GetClut:[ 16 16 16]
10-bit gamma table. pixelSize 16. Failed! Values read differed (by up
to 1023) from what was written:
0: LoadClut:[ 0 1023 152] vs. GetClut:[ 0 0 0]
1: LoadClut:[ 33 990 355] vs. GetClut:[ 4 4 4]
2: LoadClut:[ 66 957 543] vs. GetClut:[ 8 8 8]
3: LoadClut:[ 99 924 553] vs. GetClut:[ 12 12 12]
4: LoadClut:[ 132 891 546] vs. GetClut:[ 16 16 16]
10-bit gamma table. pixelSize 32. Failed! Values read differed (by up
to 1023) from what was written:
0: LoadClut:[ 0 1023 534] vs. GetClut:[ 0 0 0]
1: LoadClut:[ 4 1019 737] vs. GetClut:[ 4 4 4]
2: LoadClut:[ 8 1015 789] vs. GetClut:[ 8 8 8]
3: LoadClut:[ 12 1011 181] vs. GetClut:[ 12 12 12]
4: LoadClut:[ 16 1007 586] vs. GetClut:[ 16 16 16]
************************************************************************
**
»cluttest
ClutTest
*** 's Classic Mac OS Compatibility, Mac OS 9.2.2
************************
PowerPC processor 0x13c, 330.784 Mflop/s
Psychtoolbox 2.55, 12 March 2005, Matlab 5.2.1.1421
FileSharing is on.
No serial port arbitration.
*** Screen 0
*************************************************************
"" (.Display_Video_Apple_BB200 version 1)
10 bit dacs. 2560x1600 60 Hz.
Prefs: cscGetNextResolution, SetClutDriverWaitsForBlanking 0.
- - - - - - - - - - - - - - - - - - - - - - - -
-
pixelSize 8. randomize 0. SetGamma 8 bits. GetGamma 8 bits. GetClut
== predicted.
pixelSize 8. randomize 1. SetGamma 8 bits. GetGamma 8 bits. GetClut
!= predicted. Max error 244. Rms error 106.2.
0: GetClut:[ 91 106 142] vs. expected:[ 93 180 123]
1: GetClut:[ 237 3 34] vs. expected:[ 240 215 249]
2: GetClut:[ 88 219 223] vs. expected:[ 85 96 45]
3: GetClut:[ 196 122 49] vs. expected:[ 43 139 234]
. . .
252: GetClut:[ 96 218 5] vs. expected:[ 70 188 106]
253: GetClut:[ 78 132 189] vs. expected:[ 236 112 178]
254: GetClut:[ 75 98 204] vs. expected:[ 238 69 94]
255: GetClut:[ 63 253 195] vs. expected:[ 68 202 165]
pixelSize 16. randomize 0. SetGamma 8 bits. GetGamma 8 bits. GetClut
== predicted.
pixelSize 16. randomize 1. SetGamma 8 bits. GetGamma 8 bits. GetClut
!= predicted. Max error 241. Rms error 137.2.
0: GetClut:[ 7 31 10] vs. expected:[ 39 131 183]
1: GetClut:[ 7 4 1] vs. expected:[ 39 121 242]
2: GetClut:[ 2 17 9] vs. expected:[ 171 2 223]
3: GetClut:[ 10 24 19] vs. expected:[ 183 57 98]
. . .
28: GetClut:[ 6 11 29] vs. expected:[ 125 70 90]
29: GetClut:[ 24 7 19] vs. expected:[ 57 39 98]
30: GetClut:[ 27 4 0] vs. expected:[ 146 121 209]
31: GetClut:[ 6 0 4] vs. expected:[ 125 209 121]
pixelSize 32. randomize 0. SetGamma 8 bits. GetGamma 8 bits. GetClut
== predicted.
pixelSize 32. randomize 1. SetGamma 8 bits. GetGamma 8 bits. GetClut
!= predicted. Max error 240. Rms error 105.4.
0: GetClut:[ 132 52 214] vs. expected:[ 160 113 10]
1: GetClut:[ 19 111 160] vs. expected:[ 207 92 242]
2: GetClut:[ 65 247 163] vs. expected:[ 115 24 20]
3: GetClut:[ 220 30 10] vs. expected:[ 54 223 247]
. . .
252: GetClut:[ 238 109 237] vs. expected:[ 251 126 215]
253: GetClut:[ 18 149 205] vs. expected:[ 35 134 58]
254: GetClut:[ 185 157 38] vs. expected:[ 53 242 42]
255: GetClut:[ 251 177 61] vs. expected:[ 213 255 25]
pixelSize 8. randomize 0. SetGamma 10 bits. GetGamma 8 bits. Error in
gamma table.
0 != 0
4 != 0
8 != 1
12 != 2
pixelSize 16. randomize 0. SetGamma 10 bits. GetGamma 8 bits. Error in
gamma table.
0 != 0
4 != 0
8 != 1
12 != 2
pixelSize 32. randomize 0. SetGamma 10 bits. GetGamma 8 bits. Error in
gamma table.
0 != 0
4 != 0
8 != 1
12 != 2
Errors encountered at all tested gamma table resolutions: 8 10 bits.
************************************************************************
**
I have been testing the updated Psychtoolbox 2.55 and an error is
reported by LoadClutTest and ClutTest.
I am also a bit confused about references to the "gamma table" when
testing "LoadClut",
unless the "gamma table" and the "colour lookup table" are the same
thing.
I am not sure how many people will be running iPTB 2.55 in "Classic
mode" on a G5,
but I have attached details for Denis and Allen to look at, if
interested.
Perhaps 10-bit DACs are not properly supported in Classic mode.
-- David Jones
»loadcluttest
LoadClutTest
*** 's Classic Mac OS Compatibility, Mac OS 9.2.2
************************
PowerPC processor 0x13c, 332.169 Mflop/s
Psychtoolbox 2.55, 12 March 2005, Matlab 5.2.1.1421
FileSharing is on.
No serial port arbitration.
*** Screen 0
*************************************************************
"" (.Display_Video_Apple_BB200 version 1)
10 bit dacs. 2560x1600 60 Hz.
Prefs: cscGetNextResolution, SetClutDriverWaitsForBlanking 0.
- - - - - - - - - - - - - - - - - - - - - - - -
-
8-bit gamma table. pixelSize 8. Success! GetClut==LoadClut at 8 bits.
8-bit gamma table. pixelSize 16. Success! GetClut==LoadClut at 8 bits.
8-bit gamma table. pixelSize 32. Success! GetClut==LoadClut at 8 bits.
10-bit gamma table. pixelSize 8. Failed! Values read differed (by up
to 1023) from what was written:
0: LoadClut:[ 0 1023 230] vs. GetClut:[ 0 0 0]
1: LoadClut:[ 4 1019 492] vs. GetClut:[ 4 4 4]
2: LoadClut:[ 8 1015 853] vs. GetClut:[ 8 8 8]
3: LoadClut:[ 12 1011 451] vs. GetClut:[ 12 12 12]
4: LoadClut:[ 16 1007 132] vs. GetClut:[ 16 16 16]
10-bit gamma table. pixelSize 16. Failed! Values read differed (by up
to 1023) from what was written:
0: LoadClut:[ 0 1023 152] vs. GetClut:[ 0 0 0]
1: LoadClut:[ 33 990 355] vs. GetClut:[ 4 4 4]
2: LoadClut:[ 66 957 543] vs. GetClut:[ 8 8 8]
3: LoadClut:[ 99 924 553] vs. GetClut:[ 12 12 12]
4: LoadClut:[ 132 891 546] vs. GetClut:[ 16 16 16]
10-bit gamma table. pixelSize 32. Failed! Values read differed (by up
to 1023) from what was written:
0: LoadClut:[ 0 1023 534] vs. GetClut:[ 0 0 0]
1: LoadClut:[ 4 1019 737] vs. GetClut:[ 4 4 4]
2: LoadClut:[ 8 1015 789] vs. GetClut:[ 8 8 8]
3: LoadClut:[ 12 1011 181] vs. GetClut:[ 12 12 12]
4: LoadClut:[ 16 1007 586] vs. GetClut:[ 16 16 16]
************************************************************************
**
»cluttest
ClutTest
*** 's Classic Mac OS Compatibility, Mac OS 9.2.2
************************
PowerPC processor 0x13c, 330.784 Mflop/s
Psychtoolbox 2.55, 12 March 2005, Matlab 5.2.1.1421
FileSharing is on.
No serial port arbitration.
*** Screen 0
*************************************************************
"" (.Display_Video_Apple_BB200 version 1)
10 bit dacs. 2560x1600 60 Hz.
Prefs: cscGetNextResolution, SetClutDriverWaitsForBlanking 0.
- - - - - - - - - - - - - - - - - - - - - - - -
-
pixelSize 8. randomize 0. SetGamma 8 bits. GetGamma 8 bits. GetClut
== predicted.
pixelSize 8. randomize 1. SetGamma 8 bits. GetGamma 8 bits. GetClut
!= predicted. Max error 244. Rms error 106.2.
0: GetClut:[ 91 106 142] vs. expected:[ 93 180 123]
1: GetClut:[ 237 3 34] vs. expected:[ 240 215 249]
2: GetClut:[ 88 219 223] vs. expected:[ 85 96 45]
3: GetClut:[ 196 122 49] vs. expected:[ 43 139 234]
. . .
252: GetClut:[ 96 218 5] vs. expected:[ 70 188 106]
253: GetClut:[ 78 132 189] vs. expected:[ 236 112 178]
254: GetClut:[ 75 98 204] vs. expected:[ 238 69 94]
255: GetClut:[ 63 253 195] vs. expected:[ 68 202 165]
pixelSize 16. randomize 0. SetGamma 8 bits. GetGamma 8 bits. GetClut
== predicted.
pixelSize 16. randomize 1. SetGamma 8 bits. GetGamma 8 bits. GetClut
!= predicted. Max error 241. Rms error 137.2.
0: GetClut:[ 7 31 10] vs. expected:[ 39 131 183]
1: GetClut:[ 7 4 1] vs. expected:[ 39 121 242]
2: GetClut:[ 2 17 9] vs. expected:[ 171 2 223]
3: GetClut:[ 10 24 19] vs. expected:[ 183 57 98]
. . .
28: GetClut:[ 6 11 29] vs. expected:[ 125 70 90]
29: GetClut:[ 24 7 19] vs. expected:[ 57 39 98]
30: GetClut:[ 27 4 0] vs. expected:[ 146 121 209]
31: GetClut:[ 6 0 4] vs. expected:[ 125 209 121]
pixelSize 32. randomize 0. SetGamma 8 bits. GetGamma 8 bits. GetClut
== predicted.
pixelSize 32. randomize 1. SetGamma 8 bits. GetGamma 8 bits. GetClut
!= predicted. Max error 240. Rms error 105.4.
0: GetClut:[ 132 52 214] vs. expected:[ 160 113 10]
1: GetClut:[ 19 111 160] vs. expected:[ 207 92 242]
2: GetClut:[ 65 247 163] vs. expected:[ 115 24 20]
3: GetClut:[ 220 30 10] vs. expected:[ 54 223 247]
. . .
252: GetClut:[ 238 109 237] vs. expected:[ 251 126 215]
253: GetClut:[ 18 149 205] vs. expected:[ 35 134 58]
254: GetClut:[ 185 157 38] vs. expected:[ 53 242 42]
255: GetClut:[ 251 177 61] vs. expected:[ 213 255 25]
pixelSize 8. randomize 0. SetGamma 10 bits. GetGamma 8 bits. Error in
gamma table.
0 != 0
4 != 0
8 != 1
12 != 2
pixelSize 16. randomize 0. SetGamma 10 bits. GetGamma 8 bits. Error in
gamma table.
0 != 0
4 != 0
8 != 1
12 != 2
pixelSize 32. randomize 0. SetGamma 10 bits. GetGamma 8 bits. Error in
gamma table.
0 != 0
4 != 0
8 != 1
12 != 2
Errors encountered at all tested gamma table resolutions: 8 10 bits.
************************************************************************
**