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-rw-r--r--libgo/go/image/png/testdata/pngsuite/README9
-rw-r--r--libgo/go/image/png/testdata/pngsuite/README.original85
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn0g01.pngbin0 -> 164 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn0g01.sng41
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn0g02.pngbin0 -> 104 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn0g02.sng41
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn0g04.pngbin0 -> 145 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn0g04.sng41
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn0g08.pngbin0 -> 138 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn0g08.sng41
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn0g16.pngbin0 -> 167 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn0g16.sng41
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn2c08.pngbin0 -> 145 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn2c08.sng41
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn2c16.pngbin0 -> 302 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn2c16.sng41
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn3p01.pngbin0 -> 112 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn3p01.sng45
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn3p02.pngbin0 -> 146 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn3p02.sng50
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn3p04.pngbin0 -> 216 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn3p04.sng61
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn3p08.pngbin0 -> 1286 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn3p08.sng299
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn4a08.pngbin0 -> 126 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn4a08.sng41
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn4a16.pngbin0 -> 2206 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn4a16.sng41
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn6a08.pngbin0 -> 184 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn6a08.sng41
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn6a16.pngbin0 -> 3435 bytes
-rw-r--r--libgo/go/image/png/testdata/pngsuite/basn6a16.sng41
32 files changed, 1000 insertions, 0 deletions
diff --git a/libgo/go/image/png/testdata/pngsuite/README b/libgo/go/image/png/testdata/pngsuite/README
new file mode 100644
index 000000000..27e7c6558
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/README
@@ -0,0 +1,9 @@
+The *.png and README.original files in this directory are copied from
+libpng.org, specifically contrib/pngsuite/* in libpng-1.2.40.tar.gz.
+README.original gives the following license for those files:
+
+ Permission to use, copy, and distribute these images for any purpose
+ and without fee is hereby granted.
+
+The *.sng files in this directory were generated from the *.png files
+by the sng command-line tool.
diff --git a/libgo/go/image/png/testdata/pngsuite/README.original b/libgo/go/image/png/testdata/pngsuite/README.original
new file mode 100644
index 000000000..714d12c64
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/README.original
@@ -0,0 +1,85 @@
+
+pngsuite
+--------
+(c) Willem van Schaik, 1999
+
+Permission to use, copy, and distribute these images for any purpose and
+without fee is hereby granted.
+
+These 15 images are part of the much larger PngSuite test-set of
+images, available for developers of PNG supporting software. The
+complete set, available at http:/www.schaik.com/pngsuite/, contains
+a variety of images to test interlacing, gamma settings, ancillary
+chunks, etc.
+
+The images in this directory represent the basic PNG color-types:
+grayscale (1-16 bit deep), full color (8 or 16 bit), paletted
+(1-8 bit) and grayscale or color images with alpha channel. You
+can use them to test the proper functioning of PNG software.
+
+ filename depth type
+ ------------ ------ --------------
+ basn0g01.png 1-bit grayscale
+ basn0g02.png 2-bit grayscale
+ basn0g04.png 4-bit grayscale
+ basn0g08.png 8-bit grayscale
+ basn0g16.png 16-bit grayscale
+ basn2c08.png 8-bit truecolor
+ basn2c16.png 16-bit truecolor
+ basn3p01.png 1-bit paletted
+ basn3p02.png 2-bit paletted
+ basn3p04.png 4-bit paletted
+ basn3p08.png 8-bit paletted
+ basn4a08.png 8-bit gray with alpha
+ basn4a16.png 16-bit gray with alpha
+ basn6a08.png 8-bit RGBA
+ basn6a16.png 16-bit RGBA
+
+Here is the correct result of typing "pngtest -m *.png" in
+this directory:
+
+Testing basn0g01.png: PASS (524 zero samples)
+ Filter 0 was used 32 times
+Testing basn0g02.png: PASS (448 zero samples)
+ Filter 0 was used 32 times
+Testing basn0g04.png: PASS (520 zero samples)
+ Filter 0 was used 32 times
+Testing basn0g08.png: PASS (3 zero samples)
+ Filter 1 was used 9 times
+ Filter 4 was used 23 times
+Testing basn0g16.png: PASS (1 zero samples)
+ Filter 1 was used 1 times
+ Filter 2 was used 31 times
+Testing basn2c08.png: PASS (6 zero samples)
+ Filter 1 was used 5 times
+ Filter 4 was used 27 times
+Testing basn2c16.png: PASS (592 zero samples)
+ Filter 1 was used 1 times
+ Filter 4 was used 31 times
+Testing basn3p01.png: PASS (512 zero samples)
+ Filter 0 was used 32 times
+Testing basn3p02.png: PASS (448 zero samples)
+ Filter 0 was used 32 times
+Testing basn3p04.png: PASS (544 zero samples)
+ Filter 0 was used 32 times
+Testing basn3p08.png: PASS (4 zero samples)
+ Filter 0 was used 32 times
+Testing basn4a08.png: PASS (32 zero samples)
+ Filter 1 was used 1 times
+ Filter 4 was used 31 times
+Testing basn4a16.png: PASS (64 zero samples)
+ Filter 0 was used 1 times
+ Filter 1 was used 2 times
+ Filter 2 was used 1 times
+ Filter 4 was used 28 times
+Testing basn6a08.png: PASS (160 zero samples)
+ Filter 1 was used 1 times
+ Filter 4 was used 31 times
+Testing basn6a16.png: PASS (1072 zero samples)
+ Filter 1 was used 4 times
+ Filter 4 was used 28 times
+libpng passes test
+
+Willem van Schaik
+<willem@schaik.com>
+October 1999
diff --git a/libgo/go/image/png/testdata/pngsuite/basn0g01.png b/libgo/go/image/png/testdata/pngsuite/basn0g01.png
new file mode 100644
index 000000000..e31e1c7a6
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn0g01.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn0g01.sng b/libgo/go/image/png/testdata/pngsuite/basn0g01.sng
new file mode 100644
index 000000000..e712d8ec6
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn0g01.sng
@@ -0,0 +1,41 @@
+#SNG: from basn0g01.png
+IHDR {
+ width: 32; height: 32; bitdepth: 1;
+ using grayscale;
+}
+gAMA {1.0000}
+IMAGE {
+ pixels hex
+fffffffe
+fffffffc
+fffffff8
+fffffff0
+f3f3ffe0
+f3f3ffc0
+f3f3ff80
+f333ff00
+f333fe00
+f333fc00
+f807f800
+f807f000
+fccfe000
+fccfc000
+ffff8000
+ffff0000
+fffe0000
+fffc0000
+fff80fe0
+fff00fe0
+ffe00c30
+ffc00c30
+ff800fe0
+ff000fe0
+fe000c30
+fc000c30
+f8000fe0
+f0000fe0
+e0000000
+c0000000
+80000000
+00000000
+}
diff --git a/libgo/go/image/png/testdata/pngsuite/basn0g02.png b/libgo/go/image/png/testdata/pngsuite/basn0g02.png
new file mode 100644
index 000000000..68809dd8f
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn0g02.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn0g02.sng b/libgo/go/image/png/testdata/pngsuite/basn0g02.sng
new file mode 100644
index 000000000..e7f2d7ea9
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn0g02.sng
@@ -0,0 +1,41 @@
+#SNG: from basn0g02.png
+IHDR {
+ width: 32; height: 32; bitdepth: 2;
+ using grayscale;
+}
+gAMA {1.0000}
+IMAGE {
+ pixels hex
+0055aaff0055aaff
+0055aaff0055aaff
+0055aaff0055aaff
+0055aaff0055aaff
+55aaff0055aaff00
+55aaff0055aaff00
+55aaff0055aaff00
+55aaff0055aaff00
+aaff0055aaff0055
+aaff0055aaff0055
+aaff0055aaff0055
+aaff0055aaff0055
+ff0055aaff0055aa
+ff0055aaff0055aa
+ff0055aaff0055aa
+ff0055aaff0055aa
+0055aaff0055aaff
+0055aaff0055aaff
+0055aaff0055aaff
+0055aaff0055aaff
+55aaff0055aaff00
+55aaff0055aaff00
+55aaff0055aaff00
+55aaff0055aaff00
+aaff0055aaff0055
+aaff0055aaff0055
+aaff0055aaff0055
+aaff0055aaff0055
+ff0055aaff0055aa
+ff0055aaff0055aa
+ff0055aaff0055aa
+ff0055aaff0055aa
+}
diff --git a/libgo/go/image/png/testdata/pngsuite/basn0g04.png b/libgo/go/image/png/testdata/pngsuite/basn0g04.png
new file mode 100644
index 000000000..6fa089cb8
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn0g04.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn0g04.sng b/libgo/go/image/png/testdata/pngsuite/basn0g04.sng
new file mode 100644
index 000000000..396c508b2
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn0g04.sng
@@ -0,0 +1,41 @@
+#SNG: from basn0g04.png
+IHDR {
+ width: 32; height: 32; bitdepth: 4;
+ using grayscale;
+}
+gAMA {1.0000}
+IMAGE {
+ pixels hex
+00001111222233334444555566667777
+00001111222233334444555566667777
+00001111222233334444555566667777
+00001111222233334444555566667777
+11112222333344445555666677778888
+11112222333344445555666677778888
+11112222333344445555666677778888
+11112222333344445555666677778888
+22223333444455556666777788889999
+22223333444455556666777788889999
+22223333444455556666777788889999
+22223333444455556666777788889999
+3333444455556666777788889999aaaa
+3333444455556666777788889999aaaa
+3333444455556666777788889999aaaa
+3333444455556666777788889999aaaa
+444455556666777788889999aaaabbbb
+444455556666777788889999aaaabbbb
+444455556666777788889999aaaabbbb
+444455556666777788889999aaaabbbb
+55556666777788889999aaaabbbbcccc
+55556666777788889999aaaabbbbcccc
+55556666777788889999aaaabbbbcccc
+55556666777788889999aaaabbbbcccc
+6666777788889999aaaabbbbccccdddd
+6666777788889999aaaabbbbccccdddd
+6666777788889999aaaabbbbccccdddd
+6666777788889999aaaabbbbccccdddd
+777788889999aaaabbbbccccddddeeee
+777788889999aaaabbbbccccddddeeee
+777788889999aaaabbbbccccddddeeee
+777788889999aaaabbbbccccddddeeee
+}
diff --git a/libgo/go/image/png/testdata/pngsuite/basn0g08.png b/libgo/go/image/png/testdata/pngsuite/basn0g08.png
new file mode 100644
index 000000000..bf522eef0
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn0g08.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn0g08.sng b/libgo/go/image/png/testdata/pngsuite/basn0g08.sng
new file mode 100644
index 000000000..7389eb774
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn0g08.sng
@@ -0,0 +1,41 @@
+#SNG: from basn0g08.png
+IHDR {
+ width: 32; height: 32; bitdepth: 8;
+ using grayscale;
+}
+gAMA {1.0000}
+IMAGE {
+ pixels hex
+000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
+202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f
+404142434445464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f
+606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f
+808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f
+a0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7b8b9babbbcbdbebf
+c0c1c2c3c4c5c6c7c8c9cacbcccdcecfd0d1d2d3d4d5d6d7d8d9dadbdcdddedf
+e0e1e2e3e4e5e6e7e8e9eaebecedeeeff0f1f2f3f4f5f6f7f8f9fafbfcfdfeff
+fefdfcfbfaf9f8f7f6f5f4f3f2f1f0efeeedecebeae9e8e7e6e5e4e3e2e1e0df
+dedddcdbdad9d8d7d6d5d4d3d2d1d0cfcecdcccbcac9c8c7c6c5c4c3c2c1c0bf
+bebdbcbbbab9b8b7b6b5b4b3b2b1b0afaeadacabaaa9a8a7a6a5a4a3a2a1a09f
+9e9d9c9b9a999897969594939291908f8e8d8c8b8a898887868584838281807f
+7e7d7c7b7a797877767574737271706f6e6d6c6b6a696867666564636261605f
+5e5d5c5b5a595857565554535251504f4e4d4c4b4a494847464544434241403f
+3e3d3c3b3a393837363534333231302f2e2d2c2b2a292827262524232221201f
+1e1d1c1b1a191817161514131211100f0e0d0c0b0a0908070605040302010001
+02030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f2021
+22232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f4041
+42434445464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f6061
+62636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f8081
+82838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9fa0a1
+a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7b8b9babbbcbdbebfc0c1
+c2c3c4c5c6c7c8c9cacbcccdcecfd0d1d2d3d4d5d6d7d8d9dadbdcdddedfe0e1
+e2e3e4e5e6e7e8e9eaebecedeeeff0f1f2f3f4f5f6f7f8f9fafbfcfdfefffefd
+fcfbfaf9f8f7f6f5f4f3f2f1f0efeeedecebeae9e8e7e6e5e4e3e2e1e0dfdedd
+dcdbdad9d8d7d6d5d4d3d2d1d0cfcecdcccbcac9c8c7c6c5c4c3c2c1c0bfbebd
+bcbbbab9b8b7b6b5b4b3b2b1b0afaeadacabaaa9a8a7a6a5a4a3a2a1a09f9e9d
+9c9b9a999897969594939291908f8e8d8c8b8a898887868584838281807f7e7d
+7c7b7a797877767574737271706f6e6d6c6b6a696867666564636261605f5e5d
+5c5b5a595857565554535251504f4e4d4c4b4a494847464544434241403f3e3d
+3c3b3a393837363534333231302f2e2d2c2b2a292827262524232221201f1e1d
+1c1b1a191817161514131211100f0e0d0c0b0a09080706050403020100010203
+}
diff --git a/libgo/go/image/png/testdata/pngsuite/basn0g16.png b/libgo/go/image/png/testdata/pngsuite/basn0g16.png
new file mode 100644
index 000000000..318ebcadf
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn0g16.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn0g16.sng b/libgo/go/image/png/testdata/pngsuite/basn0g16.sng
new file mode 100644
index 000000000..922391a9e
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn0g16.sng
@@ -0,0 +1,41 @@
+#SNG: from basn0g16.png
+IHDR {
+ width: 32; height: 32; bitdepth: 16;
+ using grayscale;
+}
+gAMA {1.0000}
+IMAGE {
+ pixels hex
+0000 0900 1200 1b00 2400 2d00 3600 3f00 4800 5100 5a00 6300 6c00 7500 7e00 8700 9000 9900 a200 ab00 b400 bd00 c600 cf00 d800 e100 ea00 f300 fc00 f0ff d5ff baff
+0200 0b00 1400 1d00 2600 2f00 3800 4100 4a00 5300 5c00 6500 6e00 7700 8000 8900 9200 9b00 a400 ad00 b600 bf00 c800 d100 da00 e300 ec00 f500 fe00 eaff cfff b4ff
+0400 0d00 1600 1f00 2800 3100 3a00 4300 4c00 5500 5e00 6700 7000 7900 8200 8b00 9400 9d00 a600 af00 b800 c100 ca00 d300 dc00 e500 ee00 f700 ffff e4ff c9ff aeff
+0600 0f00 1800 2100 2a00 3300 3c00 4500 4e00 5700 6000 6900 7200 7b00 8400 8d00 9600 9f00 a800 b100 ba00 c300 cc00 d500 de00 e700 f000 f900 f9ff deff c3ff a8ff
+0800 1100 1a00 2300 2c00 3500 3e00 4700 5000 5900 6200 6b00 7400 7d00 8600 8f00 9800 a100 aa00 b300 bc00 c500 ce00 d700 e000 e900 f200 fb00 f3ff d8ff bdff a2ff
+0a00 1300 1c00 2500 2e00 3700 4000 4900 5200 5b00 6400 6d00 7600 7f00 8800 9100 9a00 a300 ac00 b500 be00 c700 d000 d900 e200 eb00 f400 fd00 edff d2ff b7ff 9cff
+0c00 1500 1e00 2700 3000 3900 4200 4b00 5400 5d00 6600 6f00 7800 8100 8a00 9300 9c00 a500 ae00 b700 c000 c900 d200 db00 e400 ed00 f600 ff00 e7ff ccff b1ff 96ff
+0e00 1700 2000 2900 3200 3b00 4400 4d00 5600 5f00 6800 7100 7a00 8300 8c00 9500 9e00 a700 b000 b900 c200 cb00 d400 dd00 e600 ef00 f800 fcff e1ff c6ff abff 90ff
+1000 1900 2200 2b00 3400 3d00 4600 4f00 5800 6100 6a00 7300 7c00 8500 8e00 9700 a000 a900 b200 bb00 c400 cd00 d600 df00 e800 f100 fa00 f6ff dbff c0ff a5ff 8aff
+1200 1b00 2400 2d00 3600 3f00 4800 5100 5a00 6300 6c00 7500 7e00 8700 9000 9900 a200 ab00 b400 bd00 c600 cf00 d800 e100 ea00 f300 fc00 f0ff d5ff baff 9fff 84ff
+1400 1d00 2600 2f00 3800 4100 4a00 5300 5c00 6500 6e00 7700 8000 8900 9200 9b00 a400 ad00 b600 bf00 c800 d100 da00 e300 ec00 f500 fe00 eaff cfff b4ff 99ff 7eff
+1600 1f00 2800 3100 3a00 4300 4c00 5500 5e00 6700 7000 7900 8200 8b00 9400 9d00 a600 af00 b800 c100 ca00 d300 dc00 e500 ee00 f700 ffff e4ff c9ff aeff 93ff 78ff
+1800 2100 2a00 3300 3c00 4500 4e00 5700 6000 6900 7200 7b00 8400 8d00 9600 9f00 a800 b100 ba00 c300 cc00 d500 de00 e700 f000 f900 f9ff deff c3ff a8ff 8dff 72ff
+1a00 2300 2c00 3500 3e00 4700 5000 5900 6200 6b00 7400 7d00 8600 8f00 9800 a100 aa00 b300 bc00 c500 ce00 d700 e000 e900 f200 fb00 f3ff d8ff bdff a2ff 87ff 6cff
+1c00 2500 2e00 3700 4000 4900 5200 5b00 6400 6d00 7600 7f00 8800 9100 9a00 a300 ac00 b500 be00 c700 d000 d900 e200 eb00 f400 fd00 edff d2ff b7ff 9cff 81ff 66ff
+1e00 2700 3000 3900 4200 4b00 5400 5d00 6600 6f00 7800 8100 8a00 9300 9c00 a500 ae00 b700 c000 c900 d200 db00 e400 ed00 f600 ff00 e7ff ccff b1ff 96ff 7bff 60ff
+2000 2900 3200 3b00 4400 4d00 5600 5f00 6800 7100 7a00 8300 8c00 9500 9e00 a700 b000 b900 c200 cb00 d400 dd00 e600 ef00 f800 fcff e1ff c6ff abff 90ff 75ff 5aff
+2200 2b00 3400 3d00 4600 4f00 5800 6100 6a00 7300 7c00 8500 8e00 9700 a000 a900 b200 bb00 c400 cd00 d600 df00 e800 f100 fa00 f6ff dbff c0ff a5ff 8aff 6fff 54ff
+2400 2d00 3600 3f00 4800 5100 5a00 6300 6c00 7500 7e00 8700 9000 9900 a200 ab00 b400 bd00 c600 cf00 d800 e100 ea00 f300 fc00 f0ff d5ff baff 9fff 84ff 69ff 4eff
+2600 2f00 3800 4100 4a00 5300 5c00 6500 6e00 7700 8000 8900 9200 9b00 a400 ad00 b600 bf00 c800 d100 da00 e300 ec00 f500 fe00 eaff cfff b4ff 99ff 7eff 63ff 48ff
+2800 3100 3a00 4300 4c00 5500 5e00 6700 7000 7900 8200 8b00 9400 9d00 a600 af00 b800 c100 ca00 d300 dc00 e500 ee00 f700 ffff e4ff c9ff aeff 93ff 78ff 5dff 42ff
+2a00 3300 3c00 4500 4e00 5700 6000 6900 7200 7b00 8400 8d00 9600 9f00 a800 b100 ba00 c300 cc00 d500 de00 e700 f000 f900 f9ff deff c3ff a8ff 8dff 72ff 57ff 3cff
+2c00 3500 3e00 4700 5000 5900 6200 6b00 7400 7d00 8600 8f00 9800 a100 aa00 b300 bc00 c500 ce00 d700 e000 e900 f200 fb00 f3ff d8ff bdff a2ff 87ff 6cff 51ff 36ff
+2e00 3700 4000 4900 5200 5b00 6400 6d00 7600 7f00 8800 9100 9a00 a300 ac00 b500 be00 c700 d000 d900 e200 eb00 f400 fd00 edff d2ff b7ff 9cff 81ff 66ff 4bff 30ff
+3000 3900 4200 4b00 5400 5d00 6600 6f00 7800 8100 8a00 9300 9c00 a500 ae00 b700 c000 c900 d200 db00 e400 ed00 f600 ff00 e7ff ccff b1ff 96ff 7bff 60ff 45ff 2aff
+3200 3b00 4400 4d00 5600 5f00 6800 7100 7a00 8300 8c00 9500 9e00 a700 b000 b900 c200 cb00 d400 dd00 e600 ef00 f800 fcff e1ff c6ff abff 90ff 75ff 5aff 3fff 24ff
+3400 3d00 4600 4f00 5800 6100 6a00 7300 7c00 8500 8e00 9700 a000 a900 b200 bb00 c400 cd00 d600 df00 e800 f100 fa00 f6ff dbff c0ff a5ff 8aff 6fff 54ff 39ff 1eff
+3600 3f00 4800 5100 5a00 6300 6c00 7500 7e00 8700 9000 9900 a200 ab00 b400 bd00 c600 cf00 d800 e100 ea00 f300 fc00 f0ff d5ff baff 9fff 84ff 69ff 4eff 33ff 18ff
+3800 4100 4a00 5300 5c00 6500 6e00 7700 8000 8900 9200 9b00 a400 ad00 b600 bf00 c800 d100 da00 e300 ec00 f500 fe00 eaff cfff b4ff 99ff 7eff 63ff 48ff 2dff 12ff
+3a00 4300 4c00 5500 5e00 6700 7000 7900 8200 8b00 9400 9d00 a600 af00 b800 c100 ca00 d300 dc00 e500 ee00 f700 ffff e4ff c9ff aeff 93ff 78ff 5dff 42ff 27ff 0cff
+3c00 4500 4e00 5700 6000 6900 7200 7b00 8400 8d00 9600 9f00 a800 b100 ba00 c300 cc00 d500 de00 e700 f000 f900 f9ff deff c3ff a8ff 8dff 72ff 57ff 3cff 21ff 06ff
+3e00 4700 5000 5900 6200 6b00 7400 7d00 8600 8f00 9800 a100 aa00 b300 bc00 c500 ce00 d700 e000 e900 f200 fb00 f3ff d8ff bdff a2ff 87ff 6cff 51ff 36ff 1bff 00ff
+}
diff --git a/libgo/go/image/png/testdata/pngsuite/basn2c08.png b/libgo/go/image/png/testdata/pngsuite/basn2c08.png
new file mode 100644
index 000000000..21d2f91a8
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn2c08.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn2c08.sng b/libgo/go/image/png/testdata/pngsuite/basn2c08.sng
new file mode 100644
index 000000000..09a61317b
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn2c08.sng
@@ -0,0 +1,41 @@
+#SNG: from basn2c08.png
+IHDR {
+ width: 32; height: 32; bitdepth: 8;
+ using color;
+}
+gAMA {1.0000}
+IMAGE {
+ pixels hex
+ffffff fffffe fffffd fffffc fffffb fffffa fffff9 fffff8 fffff7 fffff6 fffff5 fffff4 fffff3 fffff2 fffff1 fffff0 ffffef ffffee ffffed ffffec ffffeb ffffea ffffe9 ffffe8 ffffe7 ffffe6 ffffe5 ffffe4 ffffe3 ffffe2 ffffe1 ffffe0
+ffffdf ffffde ffffdd ffffdc ffffdb ffffda ffffd9 ffffd8 ffffd7 ffffd6 ffffd5 ffffd4 ffffd3 ffffd2 ffffd1 ffffd0 ffffcf ffffce ffffcd ffffcc ffffcb ffffca ffffc9 ffffc8 ffffc7 ffffc6 ffffc5 ffffc4 ffffc3 ffffc2 ffffc1 ffffc0
+ffffbf ffffbe ffffbd ffffbc ffffbb ffffba ffffb9 ffffb8 ffffb7 ffffb6 ffffb5 ffffb4 ffffb3 ffffb2 ffffb1 ffffb0 ffffaf ffffae ffffad ffffac ffffab ffffaa ffffa9 ffffa8 ffffa7 ffffa6 ffffa5 ffffa4 ffffa3 ffffa2 ffffa1 ffffa0
+ffff9f ffff9e ffff9d ffff9c ffff9b ffff9a ffff99 ffff98 ffff97 ffff96 ffff95 ffff94 ffff93 ffff92 ffff91 ffff90 ffff8f ffff8e ffff8d ffff8c ffff8b ffff8a ffff89 ffff88 ffff87 ffff86 ffff85 ffff84 ffff83 ffff82 ffff81 ffff80
+ffff7f ffff7e ffff7d ffff7c ffff7b ffff7a ffff79 ffff78 ffff77 ffff76 ffff75 ffff74 ffff73 ffff72 ffff71 ffff70 ffff6f ffff6e ffff6d ffff6c ffff6b ffff6a ffff69 ffff68 ffff67 ffff66 ffff65 ffff64 ffff63 ffff62 ffff61 ffff60
+ffff5f ffff5e ffff5d ffff5c ffff5b ffff5a ffff59 ffff58 ffff57 ffff56 ffff55 ffff54 ffff53 ffff52 ffff51 ffff50 ffff4f ffff4e ffff4d ffff4c ffff4b ffff4a ffff49 ffff48 ffff47 ffff46 ffff45 ffff44 ffff43 ffff42 ffff41 ffff40
+ffff3f ffff3e ffff3d ffff3c ffff3b ffff3a ffff39 ffff38 ffff37 ffff36 ffff35 ffff34 ffff33 ffff32 ffff31 ffff30 ffff2f ffff2e ffff2d ffff2c ffff2b ffff2a ffff29 ffff28 ffff27 ffff26 ffff25 ffff24 ffff23 ffff22 ffff21 ffff20
+ffff1f ffff1e ffff1d ffff1c ffff1b ffff1a ffff19 ffff18 ffff17 ffff16 ffff15 ffff14 ffff13 ffff12 ffff11 ffff10 ffff0f ffff0e ffff0d ffff0c ffff0b ffff0a ffff09 ffff08 ffff07 ffff06 ffff05 ffff04 ffff03 ffff02 ffff01 ffff00
+ffffff fffeff fffdff fffcff fffbff fffaff fff9ff fff8ff fff7ff fff6ff fff5ff fff4ff fff3ff fff2ff fff1ff fff0ff ffefff ffeeff ffedff ffecff ffebff ffeaff ffe9ff ffe8ff ffe7ff ffe6ff ffe5ff ffe4ff ffe3ff ffe2ff ffe1ff ffe0ff
+ffdfff ffdeff ffddff ffdcff ffdbff ffdaff ffd9ff ffd8ff ffd7ff ffd6ff ffd5ff ffd4ff ffd3ff ffd2ff ffd1ff ffd0ff ffcfff ffceff ffcdff ffccff ffcbff ffcaff ffc9ff ffc8ff ffc7ff ffc6ff ffc5ff ffc4ff ffc3ff ffc2ff ffc1ff ffc0ff
+ffbfff ffbeff ffbdff ffbcff ffbbff ffbaff ffb9ff ffb8ff ffb7ff ffb6ff ffb5ff ffb4ff ffb3ff ffb2ff ffb1ff ffb0ff ffafff ffaeff ffadff ffacff ffabff ffaaff ffa9ff ffa8ff ffa7ff ffa6ff ffa5ff ffa4ff ffa3ff ffa2ff ffa1ff ffa0ff
+ff9fff ff9eff ff9dff ff9cff ff9bff ff9aff ff99ff ff98ff ff97ff ff96ff ff95ff ff94ff ff93ff ff92ff ff91ff ff90ff ff8fff ff8eff ff8dff ff8cff ff8bff ff8aff ff89ff ff88ff ff87ff ff86ff ff85ff ff84ff ff83ff ff82ff ff81ff ff80ff
+ff7fff ff7eff ff7dff ff7cff ff7bff ff7aff ff79ff ff78ff ff77ff ff76ff ff75ff ff74ff ff73ff ff72ff ff71ff ff70ff ff6fff ff6eff ff6dff ff6cff ff6bff ff6aff ff69ff ff68ff ff67ff ff66ff ff65ff ff64ff ff63ff ff62ff ff61ff ff60ff
+ff5fff ff5eff ff5dff ff5cff ff5bff ff5aff ff59ff ff58ff ff57ff ff56ff ff55ff ff54ff ff53ff ff52ff ff51ff ff50ff ff4fff ff4eff ff4dff ff4cff ff4bff ff4aff ff49ff ff48ff ff47ff ff46ff ff45ff ff44ff ff43ff ff42ff ff41ff ff40ff
+ff3fff ff3eff ff3dff ff3cff ff3bff ff3aff ff39ff ff38ff ff37ff ff36ff ff35ff ff34ff ff33ff ff32ff ff31ff ff30ff ff2fff ff2eff ff2dff ff2cff ff2bff ff2aff ff29ff ff28ff ff27ff ff26ff ff25ff ff24ff ff23ff ff22ff ff21ff ff20ff
+ff1fff ff1eff ff1dff ff1cff ff1bff ff1aff ff19ff ff18ff ff17ff ff16ff ff15ff ff14ff ff13ff ff12ff ff11ff ff10ff ff0fff ff0eff ff0dff ff0cff ff0bff ff0aff ff09ff ff08ff ff07ff ff06ff ff05ff ff04ff ff03ff ff02ff ff01ff ff00ff
+ffffff feffff fdffff fcffff fbffff faffff f9ffff f8ffff f7ffff f6ffff f5ffff f4ffff f3ffff f2ffff f1ffff f0ffff efffff eeffff edffff ecffff ebffff eaffff e9ffff e8ffff e7ffff e6ffff e5ffff e4ffff e3ffff e2ffff e1ffff e0ffff
+dfffff deffff ddffff dcffff dbffff daffff d9ffff d8ffff d7ffff d6ffff d5ffff d4ffff d3ffff d2ffff d1ffff d0ffff cfffff ceffff cdffff ccffff cbffff caffff c9ffff c8ffff c7ffff c6ffff c5ffff c4ffff c3ffff c2ffff c1ffff c0ffff
+bfffff beffff bdffff bcffff bbffff baffff b9ffff b8ffff b7ffff b6ffff b5ffff b4ffff b3ffff b2ffff b1ffff b0ffff afffff aeffff adffff acffff abffff aaffff a9ffff a8ffff a7ffff a6ffff a5ffff a4ffff a3ffff a2ffff a1ffff a0ffff
+9fffff 9effff 9dffff 9cffff 9bffff 9affff 99ffff 98ffff 97ffff 96ffff 95ffff 94ffff 93ffff 92ffff 91ffff 90ffff 8fffff 8effff 8dffff 8cffff 8bffff 8affff 89ffff 88ffff 87ffff 86ffff 85ffff 84ffff 83ffff 82ffff 81ffff 80ffff
+7fffff 7effff 7dffff 7cffff 7bffff 7affff 79ffff 78ffff 77ffff 76ffff 75ffff 74ffff 73ffff 72ffff 71ffff 70ffff 6fffff 6effff 6dffff 6cffff 6bffff 6affff 69ffff 68ffff 67ffff 66ffff 65ffff 64ffff 63ffff 62ffff 61ffff 60ffff
+5fffff 5effff 5dffff 5cffff 5bffff 5affff 59ffff 58ffff 57ffff 56ffff 55ffff 54ffff 53ffff 52ffff 51ffff 50ffff 4fffff 4effff 4dffff 4cffff 4bffff 4affff 49ffff 48ffff 47ffff 46ffff 45ffff 44ffff 43ffff 42ffff 41ffff 40ffff
+3fffff 3effff 3dffff 3cffff 3bffff 3affff 39ffff 38ffff 37ffff 36ffff 35ffff 34ffff 33ffff 32ffff 31ffff 30ffff 2fffff 2effff 2dffff 2cffff 2bffff 2affff 29ffff 28ffff 27ffff 26ffff 25ffff 24ffff 23ffff 22ffff 21ffff 20ffff
+1fffff 1effff 1dffff 1cffff 1bffff 1affff 19ffff 18ffff 17ffff 16ffff 15ffff 14ffff 13ffff 12ffff 11ffff 10ffff 0fffff 0effff 0dffff 0cffff 0bffff 0affff 09ffff 08ffff 07ffff 06ffff 05ffff 04ffff 03ffff 02ffff 01ffff 00ffff
+ffffff fefefe fdfdfd fcfcfc fbfbfb fafafa f9f9f9 f8f8f8 f7f7f7 f6f6f6 f5f5f5 f4f4f4 f3f3f3 f2f2f2 f1f1f1 f0f0f0 efefef eeeeee ededed ececec ebebeb eaeaea e9e9e9 e8e8e8 e7e7e7 e6e6e6 e5e5e5 e4e4e4 e3e3e3 e2e2e2 e1e1e1 e0e0e0
+dfdfdf dedede dddddd dcdcdc dbdbdb dadada d9d9d9 d8d8d8 d7d7d7 d6d6d6 d5d5d5 d4d4d4 d3d3d3 d2d2d2 d1d1d1 d0d0d0 cfcfcf cecece cdcdcd cccccc cbcbcb cacaca c9c9c9 c8c8c8 c7c7c7 c6c6c6 c5c5c5 c4c4c4 c3c3c3 c2c2c2 c1c1c1 c0c0c0
+bfbfbf bebebe bdbdbd bcbcbc bbbbbb bababa b9b9b9 b8b8b8 b7b7b7 b6b6b6 b5b5b5 b4b4b4 b3b3b3 b2b2b2 b1b1b1 b0b0b0 afafaf aeaeae adadad acacac ababab aaaaaa a9a9a9 a8a8a8 a7a7a7 a6a6a6 a5a5a5 a4a4a4 a3a3a3 a2a2a2 a1a1a1 a0a0a0
+9f9f9f 9e9e9e 9d9d9d 9c9c9c 9b9b9b 9a9a9a 999999 989898 979797 969696 959595 949494 939393 929292 919191 909090 8f8f8f 8e8e8e 8d8d8d 8c8c8c 8b8b8b 8a8a8a 898989 888888 878787 868686 858585 848484 838383 828282 818181 808080
+7f7f7f 7e7e7e 7d7d7d 7c7c7c 7b7b7b 7a7a7a 797979 787878 777777 767676 757575 747474 737373 727272 717171 707070 6f6f6f 6e6e6e 6d6d6d 6c6c6c 6b6b6b 6a6a6a 696969 686868 676767 666666 656565 646464 636363 626262 616161 606060
+5f5f5f 5e5e5e 5d5d5d 5c5c5c 5b5b5b 5a5a5a 595959 585858 575757 565656 555555 545454 535353 525252 515151 505050 4f4f4f 4e4e4e 4d4d4d 4c4c4c 4b4b4b 4a4a4a 494949 484848 474747 464646 454545 444444 434343 424242 414141 404040
+3f3f3f 3e3e3e 3d3d3d 3c3c3c 3b3b3b 3a3a3a 393939 383838 373737 363636 353535 343434 333333 323232 313131 303030 2f2f2f 2e2e2e 2d2d2d 2c2c2c 2b2b2b 2a2a2a 292929 282828 272727 262626 252525 242424 232323 222222 212121 202020
+1f1f1f 1e1e1e 1d1d1d 1c1c1c 1b1b1b 1a1a1a 191919 181818 171717 161616 151515 141414 131313 121212 111111 101010 0f0f0f 0e0e0e 0d0d0d 0c0c0c 0b0b0b 0a0a0a 090909 080808 070707 060606 050505 040404 030303 020202 010101 000000
+}
diff --git a/libgo/go/image/png/testdata/pngsuite/basn2c16.png b/libgo/go/image/png/testdata/pngsuite/basn2c16.png
new file mode 100644
index 000000000..1bd4a4d0e
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn2c16.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn2c16.sng b/libgo/go/image/png/testdata/pngsuite/basn2c16.sng
new file mode 100644
index 000000000..bac7c9d91
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn2c16.sng
@@ -0,0 +1,41 @@
+#SNG: from basn2c16.png
+IHDR {
+ width: 32; height: 32; bitdepth: 16;
+ using color;
+}
+gAMA {1.0000}
+IMAGE {
+ pixels hex
+ffffffff0000 f7bdffff0000 ef7bffff0000 e739ffff0000 def7ffff0000 d6b5ffff0000 ce73ffff0000 c631ffff0000 bdefffff0000 b5adffff0000 ad6bffff0000 a529ffff0000 9ce7ffff0000 94a5ffff0000 8c63ffff0000 8421ffff0000 7bdeffff0000 739cffff0000 6b5affff0000 6318ffff0000 5ad6ffff0000 5294ffff0000 4a52ffff0000 4210ffff0000 39ceffff0000 318cffff0000 294affff0000 2108ffff0000 18c6ffff0000 1084ffff0000 0842ffff0000 0000ffff0000
+fffff7bd0000 f7bdf7bd0000 ef7bf7bd0000 e739f7bd0000 def7f7bd0000 d6b5f7bd0000 ce73f7bd0000 c631f7bd0000 bdeff7bd0000 b5adf7bd0000 ad6bf7bd0000 a529f7bd0000 9ce7f7bd0000 94a5f7bd0000 8c63f7bd0000 8421f7bd0000 7bdef7bd0000 739cf7bd0000 6b5af7bd0000 6318f7bd0000 5ad6f7bd0000 5294f7bd0000 4a52f7bd0000 4210f7bd0000 39cef7bd0000 318cf7bd0000 294af7bd0000 2108f7bd0000 18c6f7bd0000 1084f7bd0000 0842f7bd0000 0000f7bd0842
+ffffef7b0000 f7bdef7b0000 ef7bef7b0000 e739ef7b0000 def7ef7b0000 d6b5ef7b0000 ce73ef7b0000 c631ef7b0000 bdefef7b0000 b5adef7b0000 ad6bef7b0000 a529ef7b0000 9ce7ef7b0000 94a5ef7b0000 8c63ef7b0000 8421ef7b0000 7bdeef7b0000 739cef7b0000 6b5aef7b0000 6318ef7b0000 5ad6ef7b0000 5294ef7b0000 4a52ef7b0000 4210ef7b0000 39ceef7b0000 318cef7b0000 294aef7b0000 2108ef7b0000 18c6ef7b0000 1084ef7b0000 0842ef7b0842 0000ef7b1084
+ffffe7390000 f7bde7390000 ef7be7390000 e739e7390000 def7e7390000 d6b5e7390000 ce73e7390000 c631e7390000 bdefe7390000 b5ade7390000 ad6be7390000 a529e7390000 9ce7e7390000 94a5e7390000 8c63e7390000 8421e7390000 7bdee7390000 739ce7390000 6b5ae7390000 6318e7390000 5ad6e7390000 5294e7390000 4a52e7390000 4210e7390000 39cee7390000 318ce7390000 294ae7390000 2108e7390000 18c6e7390000 1084e7390842 0842e7391084 0000e73918c6
+ffffdef70000 f7bddef70000 ef7bdef70000 e739def70000 def7def70000 d6b5def70000 ce73def70000 c631def70000 bdefdef70000 b5addef70000 ad6bdef70000 a529def70000 9ce7def70000 94a5def70000 8c63def70000 8421def70000 7bdedef70000 739cdef70000 6b5adef70000 6318def70000 5ad6def70000 5294def70000 4a52def70000 4210def70000 39cedef70000 318cdef70000 294adef70000 2108def70000 18c6def70842 1084def71084 0842def718c6 0000def72108
+ffffd6b50000 f7bdd6b50000 ef7bd6b50000 e739d6b50000 def7d6b50000 d6b5d6b50000 ce73d6b50000 c631d6b50000 bdefd6b50000 b5add6b50000 ad6bd6b50000 a529d6b50000 9ce7d6b50000 94a5d6b50000 8c63d6b50000 8421d6b50000 7bded6b50000 739cd6b50000 6b5ad6b50000 6318d6b50000 5ad6d6b50000 5294d6b50000 4a52d6b50000 4210d6b50000 39ced6b50000 318cd6b50000 294ad6b50000 2108d6b50842 18c6d6b51084 1084d6b518c6 0842d6b52108 0000d6b5294a
+ffffce730000 f7bdce730000 ef7bce730000 e739ce730000 def7ce730000 d6b5ce730000 ce73ce730000 c631ce730000 bdefce730000 b5adce730000 ad6bce730000 a529ce730000 9ce7ce730000 94a5ce730000 8c63ce730000 8421ce730000 7bdece730000 739cce730000 6b5ace730000 6318ce730000 5ad6ce730000 5294ce730000 4a52ce730000 4210ce730000 39cece730000 318cce730000 294ace730842 2108ce731084 18c6ce7318c6 1084ce732108 0842ce73294a 0000ce73318c
+ffffc6310000 f7bdc6310000 ef7bc6310000 e739c6310000 def7c6310000 d6b5c6310000 ce73c6310000 c631c6310000 bdefc6310000 b5adc6310000 ad6bc6310000 a529c6310000 9ce7c6310000 94a5c6310000 8c63c6310000 8421c6310000 7bdec6310000 739cc6310000 6b5ac6310000 6318c6310000 5ad6c6310000 5294c6310000 4a52c6310000 4210c6310000 39cec6310000 318cc6310842 294ac6311084 2108c63118c6 18c6c6312108 1084c631294a 0842c631318c 0000c63139ce
+ffffbdef0000 f7bdbdef0000 ef7bbdef0000 e739bdef0000 def7bdef0000 d6b5bdef0000 ce73bdef0000 c631bdef0000 bdefbdef0000 b5adbdef0000 ad6bbdef0000 a529bdef0000 9ce7bdef0000 94a5bdef0000 8c63bdef0000 8421bdef0000 7bdebdef0000 739cbdef0000 6b5abdef0000 6318bdef0000 5ad6bdef0000 5294bdef0000 4a52bdef0000 4210bdef0000 39cebdef0842 318cbdef1084 294abdef18c6 2108bdef2108 18c6bdef294a 1084bdef318c 0842bdef39ce 0000bdef4210
+ffffb5ad0000 f7bdb5ad0000 ef7bb5ad0000 e739b5ad0000 def7b5ad0000 d6b5b5ad0000 ce73b5ad0000 c631b5ad0000 bdefb5ad0000 b5adb5ad0000 ad6bb5ad0000 a529b5ad0000 9ce7b5ad0000 94a5b5ad0000 8c63b5ad0000 8421b5ad0000 7bdeb5ad0000 739cb5ad0000 6b5ab5ad0000 6318b5ad0000 5ad6b5ad0000 5294b5ad0000 4a52b5ad0000 4210b5ad0842 39ceb5ad1084 318cb5ad18c6 294ab5ad2108 2108b5ad294a 18c6b5ad318c 1084b5ad39ce 0842b5ad4210 0000b5ad4a52
+ffffad6b0000 f7bdad6b0000 ef7bad6b0000 e739ad6b0000 def7ad6b0000 d6b5ad6b0000 ce73ad6b0000 c631ad6b0000 bdefad6b0000 b5adad6b0000 ad6bad6b0000 a529ad6b0000 9ce7ad6b0000 94a5ad6b0000 8c63ad6b0000 8421ad6b0000 7bdead6b0000 739cad6b0000 6b5aad6b0000 6318ad6b0000 5ad6ad6b0000 5294ad6b0000 4a52ad6b0842 4210ad6b1084 39cead6b18c6 318cad6b2108 294aad6b294a 2108ad6b318c 18c6ad6b39ce 1084ad6b4210 0842ad6b4a52 0000ad6b5294
+ffffa5290000 f7bda5290000 ef7ba5290000 e739a5290000 def7a5290000 d6b5a5290000 ce73a5290000 c631a5290000 bdefa5290000 b5ada5290000 ad6ba5290000 a529a5290000 9ce7a5290000 94a5a5290000 8c63a5290000 8421a5290000 7bdea5290000 739ca5290000 6b5aa5290000 6318a5290000 5ad6a5290000 5294a5290842 4a52a5291084 4210a52918c6 39cea5292108 318ca529294a 294aa529318c 2108a52939ce 18c6a5294210 1084a5294a52 0842a5295294 0000a5295ad6
+ffff9ce70000 f7bd9ce70000 ef7b9ce70000 e7399ce70000 def79ce70000 d6b59ce70000 ce739ce70000 c6319ce70000 bdef9ce70000 b5ad9ce70000 ad6b9ce70000 a5299ce70000 9ce79ce70000 94a59ce70000 8c639ce70000 84219ce70000 7bde9ce70000 739c9ce70000 6b5a9ce70000 63189ce70000 5ad69ce70842 52949ce71084 4a529ce718c6 42109ce72108 39ce9ce7294a 318c9ce7318c 294a9ce739ce 21089ce74210 18c69ce74a52 10849ce75294 08429ce75ad6 00009ce76318
+ffff94a50000 f7bd94a50000 ef7b94a50000 e73994a50000 def794a50000 d6b594a50000 ce7394a50000 c63194a50000 bdef94a50000 b5ad94a50000 ad6b94a50000 a52994a50000 9ce794a50000 94a594a50000 8c6394a50000 842194a50000 7bde94a50000 739c94a50000 6b5a94a50000 631894a50842 5ad694a51084 529494a518c6 4a5294a52108 421094a5294a 39ce94a5318c 318c94a539ce 294a94a54210 210894a54a52 18c694a55294 108494a55ad6 084294a56318 000094a56b5a
+ffff8c630000 f7bd8c630000 ef7b8c630000 e7398c630000 def78c630000 d6b58c630000 ce738c630000 c6318c630000 bdef8c630000 b5ad8c630000 ad6b8c630000 a5298c630000 9ce78c630000 94a58c630000 8c638c630000 84218c630000 7bde8c630000 739c8c630000 6b5a8c630842 63188c631084 5ad68c6318c6 52948c632108 4a528c63294a 42108c63318c 39ce8c6339ce 318c8c634210 294a8c634a52 21088c635294 18c68c635ad6 10848c636318 08428c636b5a 00008c63739c
+ffff84210000 f7bd84210000 ef7b84210000 e73984210000 def784210000 d6b584210000 ce7384210000 c63184210000 bdef84210000 b5ad84210000 ad6b84210000 a52984210000 9ce784210000 94a584210000 8c6384210000 842184210000 7bde84210000 739c84210842 6b5a84211084 6318842118c6 5ad684212108 52948421294a 4a528421318c 4210842139ce 39ce84214210 318c84214a52 294a84215294 210884215ad6 18c684216318 108484216b5a 08428421739c 000084217bde
+ffff7bde0000 f7bd7bde0000 ef7b7bde0000 e7397bde0000 def77bde0000 d6b57bde0000 ce737bde0000 c6317bde0000 bdef7bde0000 b5ad7bde0000 ad6b7bde0000 a5297bde0000 9ce77bde0000 94a57bde0000 8c637bde0000 84217bde0000 7bde7bde0842 739c7bde1084 6b5a7bde18c6 63187bde2108 5ad67bde294a 52947bde318c 4a527bde39ce 42107bde4210 39ce7bde4a52 318c7bde5294 294a7bde5ad6 21087bde6318 18c67bde6b5a 10847bde739c 08427bde7bde 00007bde8421
+ffff739c0000 f7bd739c0000 ef7b739c0000 e739739c0000 def7739c0000 d6b5739c0000 ce73739c0000 c631739c0000 bdef739c0000 b5ad739c0000 ad6b739c0000 a529739c0000 9ce7739c0000 94a5739c0000 8c63739c0000 8421739c0842 7bde739c1084 739c739c18c6 6b5a739c2108 6318739c294a 5ad6739c318c 5294739c39ce 4a52739c4210 4210739c4a52 39ce739c5294 318c739c5ad6 294a739c6318 2108739c6b5a 18c6739c739c 1084739c7bde 0842739c8421 0000739c8c63
+ffff6b5a0000 f7bd6b5a0000 ef7b6b5a0000 e7396b5a0000 def76b5a0000 d6b56b5a0000 ce736b5a0000 c6316b5a0000 bdef6b5a0000 b5ad6b5a0000 ad6b6b5a0000 a5296b5a0000 9ce76b5a0000 94a56b5a0000 8c636b5a0842 84216b5a1084 7bde6b5a18c6 739c6b5a2108 6b5a6b5a294a 63186b5a318c 5ad66b5a39ce 52946b5a4210 4a526b5a4a52 42106b5a5294 39ce6b5a5ad6 318c6b5a6318 294a6b5a6b5a 21086b5a739c 18c66b5a7bde 10846b5a8421 08426b5a8c63 00006b5a94a5
+ffff63180000 f7bd63180000 ef7b63180000 e73963180000 def763180000 d6b563180000 ce7363180000 c63163180000 bdef63180000 b5ad63180000 ad6b63180000 a52963180000 9ce763180000 94a563180842 8c6363181084 8421631818c6 7bde63182108 739c6318294a 6b5a6318318c 6318631839ce 5ad663184210 529463184a52 4a5263185294 421063185ad6 39ce63186318 318c63186b5a 294a6318739c 210863187bde 18c663188421 108463188c63 0842631894a5 000063189ce7
+ffff5ad60000 f7bd5ad60000 ef7b5ad60000 e7395ad60000 def75ad60000 d6b55ad60000 ce735ad60000 c6315ad60000 bdef5ad60000 b5ad5ad60000 ad6b5ad60000 a5295ad60000 9ce75ad60842 94a55ad61084 8c635ad618c6 84215ad62108 7bde5ad6294a 739c5ad6318c 6b5a5ad639ce 63185ad64210 5ad65ad64a52 52945ad65294 4a525ad65ad6 42105ad66318 39ce5ad66b5a 318c5ad6739c 294a5ad67bde 21085ad68421 18c65ad68c63 10845ad694a5 08425ad69ce7 00005ad6a529
+ffff52940000 f7bd52940000 ef7b52940000 e73952940000 def752940000 d6b552940000 ce7352940000 c63152940000 bdef52940000 b5ad52940000 ad6b52940000 a52952940842 9ce752941084 94a5529418c6 8c6352942108 84215294294a 7bde5294318c 739c529439ce 6b5a52944210 631852944a52 5ad652945294 529452945ad6 4a5252946318 421052946b5a 39ce5294739c 318c52947bde 294a52948421 210852948c63 18c6529494a5 108452949ce7 08425294a529 00005294ad6b
+ffff4a520000 f7bd4a520000 ef7b4a520000 e7394a520000 def74a520000 d6b54a520000 ce734a520000 c6314a520000 bdef4a520000 b5ad4a520000 ad6b4a520842 a5294a521084 9ce74a5218c6 94a54a522108 8c634a52294a 84214a52318c 7bde4a5239ce 739c4a524210 6b5a4a524a52 63184a525294 5ad64a525ad6 52944a526318 4a524a526b5a 42104a52739c 39ce4a527bde 318c4a528421 294a4a528c63 21084a5294a5 18c64a529ce7 10844a52a529 08424a52ad6b 00004a52b5ad
+ffff42100000 f7bd42100000 ef7b42100000 e73942100000 def742100000 d6b542100000 ce7342100000 c63142100000 bdef42100000 b5ad42100842 ad6b42101084 a529421018c6 9ce742102108 94a54210294a 8c634210318c 8421421039ce 7bde42104210 739c42104a52 6b5a42105294 631842105ad6 5ad642106318 529442106b5a 4a524210739c 421042107bde 39ce42108421 318c42108c63 294a421094a5 210842109ce7 18c64210a529 10844210ad6b 08424210b5ad 00004210bdef
+ffff39ce0000 f7bd39ce0000 ef7b39ce0000 e73939ce0000 def739ce0000 d6b539ce0000 ce7339ce0000 c63139ce0000 bdef39ce0842 b5ad39ce1084 ad6b39ce18c6 a52939ce2108 9ce739ce294a 94a539ce318c 8c6339ce39ce 842139ce4210 7bde39ce4a52 739c39ce5294 6b5a39ce5ad6 631839ce6318 5ad639ce6b5a 529439ce739c 4a5239ce7bde 421039ce8421 39ce39ce8c63 318c39ce94a5 294a39ce9ce7 210839cea529 18c639cead6b 108439ceb5ad 084239cebdef 000039cec631
+ffff318c0000 f7bd318c0000 ef7b318c0000 e739318c0000 def7318c0000 d6b5318c0000 ce73318c0000 c631318c0842 bdef318c1084 b5ad318c18c6 ad6b318c2108 a529318c294a 9ce7318c318c 94a5318c39ce 8c63318c4210 8421318c4a52 7bde318c5294 739c318c5ad6 6b5a318c6318 6318318c6b5a 5ad6318c739c 5294318c7bde 4a52318c8421 4210318c8c63 39ce318c94a5 318c318c9ce7 294a318ca529 2108318cad6b 18c6318cb5ad 1084318cbdef 0842318cc631 0000318cce73
+ffff294a0000 f7bd294a0000 ef7b294a0000 e739294a0000 def7294a0000 d6b5294a0000 ce73294a0842 c631294a1084 bdef294a18c6 b5ad294a2108 ad6b294a294a a529294a318c 9ce7294a39ce 94a5294a4210 8c63294a4a52 8421294a5294 7bde294a5ad6 739c294a6318 6b5a294a6b5a 6318294a739c 5ad6294a7bde 5294294a8421 4a52294a8c63 4210294a94a5 39ce294a9ce7 318c294aa529 294a294aad6b 2108294ab5ad 18c6294abdef 1084294ac631 0842294ace73 0000294ad6b5
+ffff21080000 f7bd21080000 ef7b21080000 e73921080000 def721080000 d6b521080842 ce7321081084 c631210818c6 bdef21082108 b5ad2108294a ad6b2108318c a529210839ce 9ce721084210 94a521084a52 8c6321085294 842121085ad6 7bde21086318 739c21086b5a 6b5a2108739c 631821087bde 5ad621088421 529421088c63 4a52210894a5 421021089ce7 39ce2108a529 318c2108ad6b 294a2108b5ad 21082108bdef 18c62108c631 10842108ce73 08422108d6b5 00002108def7
+ffff18c60000 f7bd18c60000 ef7b18c60000 e73918c60000 def718c60842 d6b518c61084 ce7318c618c6 c63118c62108 bdef18c6294a b5ad18c6318c ad6b18c639ce a52918c64210 9ce718c64a52 94a518c65294 8c6318c65ad6 842118c66318 7bde18c66b5a 739c18c6739c 6b5a18c67bde 631818c68421 5ad618c68c63 529418c694a5 4a5218c69ce7 421018c6a529 39ce18c6ad6b 318c18c6b5ad 294a18c6bdef 210818c6c631 18c618c6ce73 108418c6d6b5 084218c6def7 000018c6e739
+ffff10840000 f7bd10840000 ef7b10840000 e73910840842 def710841084 d6b5108418c6 ce7310842108 c6311084294a bdef1084318c b5ad108439ce ad6b10844210 a52910844a52 9ce710845294 94a510845ad6 8c6310846318 842110846b5a 7bde1084739c 739c10847bde 6b5a10848421 631810848c63 5ad6108494a5 529410849ce7 4a521084a529 42101084ad6b 39ce1084b5ad 318c1084bdef 294a1084c631 21081084ce73 18c61084d6b5 10841084def7 08421084e739 00001084ef7b
+ffff08420000 f7bd08420000 ef7b08420842 e73908421084 def7084218c6 d6b508422108 ce730842294a c6310842318c bdef084239ce b5ad08424210 ad6b08424a52 a52908425294 9ce708425ad6 94a508426318 8c6308426b5a 84210842739c 7bde08427bde 739c08428421 6b5a08428c63 6318084294a5 5ad608429ce7 52940842a529 4a520842ad6b 42100842b5ad 39ce0842bdef 318c0842c631 294a0842ce73 21080842d6b5 18c60842def7 10840842e739 08420842ef7b 00000842f7bd
+ffff00000000 f7bd00000842 ef7b00001084 e739000018c6 def700002108 d6b50000294a ce730000318c c631000039ce bdef00004210 b5ad00004a52 ad6b00005294 a52900005ad6 9ce700006318 94a500006b5a 8c630000739c 842100007bde 7bde00008421 739c00008c63 6b5a000094a5 631800009ce7 5ad60000a529 52940000ad6b 4a520000b5ad 42100000bdef 39ce0000c631 318c0000ce73 294a0000d6b5 21080000def7 18c60000e739 10840000ef7b 08420000f7bd 00000000ffff
+}
diff --git a/libgo/go/image/png/testdata/pngsuite/basn3p01.png b/libgo/go/image/png/testdata/pngsuite/basn3p01.png
new file mode 100644
index 000000000..a21db5977
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn3p01.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn3p01.sng b/libgo/go/image/png/testdata/pngsuite/basn3p01.sng
new file mode 100644
index 000000000..a8b3ce878
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn3p01.sng
@@ -0,0 +1,45 @@
+#SNG: from basn3p01.png
+IHDR {
+ width: 32; height: 32; bitdepth: 1;
+ using color palette;
+}
+gAMA {1.0000}
+PLTE {
+ (238,255, 34) # rgb = (0xee,0xff,0x22)
+ ( 34,102,255) # rgb = (0x22,0x66,0xff)
+}
+IMAGE {
+ pixels hex
+0f0f0f0f
+0f0f0f0f
+0f0f0f0f
+0f0f0f0f
+f0f0f0f0
+f0f0f0f0
+f0f0f0f0
+f0f0f0f0
+0f0f0f0f
+0f0f0f0f
+0f0f0f0f
+0f0f0f0f
+f0f0f0f0
+f0f0f0f0
+f0f0f0f0
+f0f0f0f0
+0f0f0f0f
+0f0f0f0f
+0f0f0f0f
+0f0f0f0f
+f0f0f0f0
+f0f0f0f0
+f0f0f0f0
+f0f0f0f0
+0f0f0f0f
+0f0f0f0f
+0f0f0f0f
+0f0f0f0f
+f0f0f0f0
+f0f0f0f0
+f0f0f0f0
+f0f0f0f0
+}
diff --git a/libgo/go/image/png/testdata/pngsuite/basn3p02.png b/libgo/go/image/png/testdata/pngsuite/basn3p02.png
new file mode 100644
index 000000000..1d0ab6197
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn3p02.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn3p02.sng b/libgo/go/image/png/testdata/pngsuite/basn3p02.sng
new file mode 100644
index 000000000..f2321aa3d
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn3p02.sng
@@ -0,0 +1,50 @@
+#SNG: from basn3p02.png
+IHDR {
+ width: 32; height: 32; bitdepth: 2;
+ using color palette;
+}
+gAMA {1.0000}
+sBIT {
+ red: 1; green: 1; blue: 1;
+}
+PLTE {
+ ( 0,255, 0) # rgb = (0x00,0xff,0x00) green1
+ (255, 0, 0) # rgb = (0xff,0x00,0x00) red1
+ (255,255, 0) # rgb = (0xff,0xff,0x00) yellow1
+ ( 0, 0,255) # rgb = (0x00,0x00,0xff) blue1
+}
+IMAGE {
+ pixels hex
+ff55aa00ff55aa00
+ff55aa00ff55aa00
+ff55aa00ff55aa00
+ff55aa00ff55aa00
+00ff55aa00ff55aa
+00ff55aa00ff55aa
+00ff55aa00ff55aa
+00ff55aa00ff55aa
+aa00ff55aa00ff55
+aa00ff55aa00ff55
+aa00ff55aa00ff55
+aa00ff55aa00ff55
+55aa00ff55aa00ff
+55aa00ff55aa00ff
+55aa00ff55aa00ff
+55aa00ff55aa00ff
+ff55aa00ff55aa00
+ff55aa00ff55aa00
+ff55aa00ff55aa00
+ff55aa00ff55aa00
+00ff55aa00ff55aa
+00ff55aa00ff55aa
+00ff55aa00ff55aa
+00ff55aa00ff55aa
+aa00ff55aa00ff55
+aa00ff55aa00ff55
+aa00ff55aa00ff55
+aa00ff55aa00ff55
+55aa00ff55aa00ff
+55aa00ff55aa00ff
+55aa00ff55aa00ff
+55aa00ff55aa00ff
+}
diff --git a/libgo/go/image/png/testdata/pngsuite/basn3p04.png b/libgo/go/image/png/testdata/pngsuite/basn3p04.png
new file mode 100644
index 000000000..6dc6eac83
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn3p04.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn3p04.sng b/libgo/go/image/png/testdata/pngsuite/basn3p04.sng
new file mode 100644
index 000000000..e52885dba
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn3p04.sng
@@ -0,0 +1,61 @@
+#SNG: from basn3p04.png
+IHDR {
+ width: 32; height: 32; bitdepth: 4;
+ using color palette;
+}
+gAMA {1.0000}
+sBIT {
+ red: 4; green: 4; blue: 4;
+}
+PLTE {
+ ( 34, 0,255) # rgb = (0x22,0x00,0xff)
+ ( 0,255,255) # rgb = (0x00,0xff,0xff) cyan1
+ (136, 0,255) # rgb = (0x88,0x00,0xff)
+ ( 34,255, 0) # rgb = (0x22,0xff,0x00)
+ ( 0,153,255) # rgb = (0x00,0x99,0xff)
+ (255,102, 0) # rgb = (0xff,0x66,0x00)
+ (221, 0,255) # rgb = (0xdd,0x00,0xff)
+ (119,255, 0) # rgb = (0x77,0xff,0x00)
+ (255, 0, 0) # rgb = (0xff,0x00,0x00) red1
+ ( 0,255,153) # rgb = (0x00,0xff,0x99)
+ (221,255, 0) # rgb = (0xdd,0xff,0x00)
+ (255, 0,187) # rgb = (0xff,0x00,0xbb)
+ (255,187, 0) # rgb = (0xff,0xbb,0x00)
+ ( 0, 68,255) # rgb = (0x00,0x44,0xff)
+ ( 0,255, 68) # rgb = (0x00,0xff,0x44)
+}
+IMAGE {
+ pixels hex
+88885555ccccaaaa77773333eeee9999
+88885555ccccaaaa77773333eeee9999
+88885555ccccaaaa77773333eeee9999
+88885555ccccaaaa77773333eeee9999
+5555ccccaaaa77773333eeee99991111
+5555ccccaaaa77773333eeee99991111
+5555ccccaaaa77773333eeee99991111
+5555ccccaaaa77773333eeee99991111
+ccccaaaa77773333eeee999911114444
+ccccaaaa77773333eeee999911114444
+ccccaaaa77773333eeee999911114444
+ccccaaaa77773333eeee999911114444
+aaaa77773333eeee999911114444dddd
+aaaa77773333eeee999911114444dddd
+aaaa77773333eeee999911114444dddd
+aaaa77773333eeee999911114444dddd
+77773333eeee999911114444dddd0000
+77773333eeee999911114444dddd0000
+77773333eeee999911114444dddd0000
+77773333eeee999911114444dddd0000
+3333eeee999911114444dddd00002222
+3333eeee999911114444dddd00002222
+3333eeee999911114444dddd00002222
+3333eeee999911114444dddd00002222
+eeee999911114444dddd000022226666
+eeee999911114444dddd000022226666
+eeee999911114444dddd000022226666
+eeee999911114444dddd000022226666
+999911114444dddd000022226666bbbb
+999911114444dddd000022226666bbbb
+999911114444dddd000022226666bbbb
+999911114444dddd000022226666bbbb
+}
diff --git a/libgo/go/image/png/testdata/pngsuite/basn3p08.png b/libgo/go/image/png/testdata/pngsuite/basn3p08.png
new file mode 100644
index 000000000..0e07f483c
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn3p08.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn3p08.sng b/libgo/go/image/png/testdata/pngsuite/basn3p08.sng
new file mode 100644
index 000000000..0423bb21e
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn3p08.sng
@@ -0,0 +1,299 @@
+#SNG: from basn3p08.png
+IHDR {
+ width: 32; height: 32; bitdepth: 8;
+ using color palette;
+}
+gAMA {1.0000}
+PLTE {
+ ( 34, 68, 0) # rgb = (0x22,0x44,0x00)
+ (245,255,237) # rgb = (0xf5,0xff,0xed)
+ (119,255,119) # rgb = (0x77,0xff,0x77)
+ (203,255,255) # rgb = (0xcb,0xff,0xff)
+ ( 17, 10, 0) # rgb = (0x11,0x0a,0x00)
+ ( 58,119, 0) # rgb = (0x3a,0x77,0x00)
+ ( 34, 34,255) # rgb = (0x22,0x22,0xff)
+ (255, 17,255) # rgb = (0xff,0x11,0xff)
+ ( 17, 0, 0) # rgb = (0x11,0x00,0x00)
+ ( 34, 34, 0) # rgb = (0x22,0x22,0x00)
+ (255,172, 85) # rgb = (0xff,0xac,0x55)
+ (102,255,102) # rgb = (0x66,0xff,0x66)
+ (255,102,102) # rgb = (0xff,0x66,0x66)
+ (255, 1,255) # rgb = (0xff,0x01,0xff)
+ ( 34, 18, 0) # rgb = (0x22,0x12,0x00)
+ (220,255,255) # rgb = (0xdc,0xff,0xff)
+ (204,255,153) # rgb = (0xcc,0xff,0x99)
+ ( 68, 68,255) # rgb = (0x44,0x44,0xff)
+ ( 0, 85, 85) # rgb = (0x00,0x55,0x55)
+ ( 34, 0, 0) # rgb = (0x22,0x00,0x00)
+ (203,203,255) # rgb = (0xcb,0xcb,0xff)
+ ( 68, 68, 0) # rgb = (0x44,0x44,0x00)
+ ( 85,255, 85) # rgb = (0x55,0xff,0x55)
+ (203,203, 0) # rgb = (0xcb,0xcb,0x00)
+ ( 51, 26, 0) # rgb = (0x33,0x1a,0x00)
+ (255,236,220) # rgb = (0xff,0xec,0xdc)
+ (237,255,255) # rgb = (0xed,0xff,0xff)
+ (228,255,203) # rgb = (0xe4,0xff,0xcb)
+ (255,220,220) # rgb = (0xff,0xdc,0xdc)
+ ( 68,255, 68) # rgb = (0x44,0xff,0x44)
+ (102,102,255) # rgb = (0x66,0x66,0xff)
+ ( 51, 0, 0) # rgb = (0x33,0x00,0x00)
+ ( 68, 34, 0) # rgb = (0x44,0x22,0x00)
+ (237,237,255) # rgb = (0xed,0xed,0xff)
+ (102,102, 0) # rgb = (0x66,0x66,0x00)
+ (255,164, 68) # rgb = (0xff,0xa4,0x44)
+ (255,255,170) # rgb = (0xff,0xff,0xaa)
+ (237,237, 0) # rgb = (0xed,0xed,0x00)
+ ( 0,203,203) # rgb = (0x00,0xcb,0xcb)
+ (254,255,255) # rgb = (0xfe,0xff,0xff)
+ (253,255,254) # rgb = (0xfd,0xff,0xfe)
+ (255,255, 1) # rgb = (0xff,0xff,0x01)
+ ( 51,255, 51) # rgb = (0x33,0xff,0x33)
+ ( 85, 42, 0) # rgb = (0x55,0x2a,0x00)
+ ( 1, 1,255) # rgb = (0x01,0x01,0xff)
+ (136,136,255) # rgb = (0x88,0x88,0xff)
+ ( 0,170,170) # rgb = (0x00,0xaa,0xaa)
+ ( 1, 1, 0) # rgb = (0x01,0x01,0x00)
+ ( 68, 0, 0) # rgb = (0x44,0x00,0x00)
+ (136,136, 0) # rgb = (0x88,0x88,0x00)
+ (255,228,203) # rgb = (0xff,0xe4,0xcb)
+ (186, 91, 0) # rgb = (0xba,0x5b,0x00)
+ ( 34,255, 34) # rgb = (0x22,0xff,0x22)
+ (102, 50, 0) # rgb = (0x66,0x32,0x00)
+ (255,255,153) # rgb = (0xff,0xff,0x99)
+ (170,170,255) # rgb = (0xaa,0xaa,0xff)
+ ( 85, 0, 0) # rgb = (0x55,0x00,0x00)
+ (170,170, 0) # rgb = (0xaa,0xaa,0x00)
+ (203, 99, 0) # rgb = (0xcb,0x63,0x00)
+ ( 17,255, 17) # rgb = (0x11,0xff,0x11)
+ (212,255,170) # rgb = (0xd4,0xff,0xaa)
+ (119, 58, 0) # rgb = (0x77,0x3a,0x00)
+ (255, 68, 68) # rgb = (0xff,0x44,0x44)
+ (220,107, 0) # rgb = (0xdc,0x6b,0x00)
+ (102, 0, 0) # rgb = (0x66,0x00,0x00)
+ ( 1,255, 1) # rgb = (0x01,0xff,0x01)
+ (136, 66, 0) # rgb = (0x88,0x42,0x00)
+ (236,255,220) # rgb = (0xec,0xff,0xdc)
+ (107,220, 0) # rgb = (0x6b,0xdc,0x00)
+ (255,220,186) # rgb = (0xff,0xdc,0xba)
+ ( 0, 51, 51) # rgb = (0x00,0x33,0x33)
+ ( 0,237, 0) # rgb = (0x00,0xed,0x00)
+ (237,115, 0) # rgb = (0xed,0x73,0x00)
+ (255,255,136) # rgb = (0xff,0xff,0x88)
+ (153, 74, 0) # rgb = (0x99,0x4a,0x00)
+ ( 17,255,255) # rgb = (0x11,0xff,0xff)
+ (119, 0, 0) # rgb = (0x77,0x00,0x00)
+ (255,131, 1) # rgb = (0xff,0x83,0x01)
+ (255,186,186) # rgb = (0xff,0xba,0xba)
+ (254,123, 0) # rgb = (0xfe,0x7b,0x00)
+ (255,254,255) # rgb = (0xff,0xfe,0xff)
+ ( 0,203, 0) # rgb = (0x00,0xcb,0x00)
+ (255,153,153) # rgb = (0xff,0x99,0x99)
+ ( 34,255,255) # rgb = (0x22,0xff,0xff)
+ (136, 0, 0) # rgb = (0x88,0x00,0x00)
+ (255,255,119) # rgb = (0xff,0xff,0x77)
+ ( 0,136,136) # rgb = (0x00,0x88,0x88)
+ (255,220,255) # rgb = (0xff,0xdc,0xff)
+ ( 26, 51, 0) # rgb = (0x1a,0x33,0x00)
+ ( 0, 0,170) # rgb = (0x00,0x00,0xaa)
+ ( 51,255,255) # rgb = (0x33,0xff,0xff)
+ ( 0,153, 0) # rgb = (0x00,0x99,0x00)
+ (153, 0, 0) # rgb = (0x99,0x00,0x00)
+ ( 0, 0, 1) # rgb = (0x00,0x00,0x01)
+ ( 50,102, 0) # rgb = (0x32,0x66,0x00)
+ (255,186,255) # rgb = (0xff,0xba,0xff)
+ ( 68,255,255) # rgb = (0x44,0xff,0xff)
+ (255,170,255) # rgb = (0xff,0xaa,0xff)
+ ( 0,119, 0) # rgb = (0x00,0x77,0x00)
+ ( 0,254,254) # rgb = (0x00,0xfe,0xfe)
+ (170, 0, 0) # rgb = (0xaa,0x00,0x00)
+ ( 74,153, 0) # rgb = (0x4a,0x99,0x00)
+ (255,255,102) # rgb = (0xff,0xff,0x66)
+ (255, 34, 34) # rgb = (0xff,0x22,0x22)
+ ( 0, 0,153) # rgb = (0x00,0x00,0x99)
+ (139,255, 17) # rgb = (0x8b,0xff,0x11)
+ ( 85,255,255) # rgb = (0x55,0xff,0xff)
+ (255, 1, 1) # rgb = (0xff,0x01,0x01)
+ (255,136,255) # rgb = (0xff,0x88,0xff)
+ ( 0, 85, 0) # rgb = (0x00,0x55,0x00)
+ ( 0, 17, 17) # rgb = (0x00,0x11,0x11)
+ (255,255,254) # rgb = (0xff,0xff,0xfe)
+ (255,253,254) # rgb = (0xff,0xfd,0xfe)
+ (164,255, 68) # rgb = (0xa4,0xff,0x44)
+ (102,255,255) # rgb = (0x66,0xff,0xff)
+ (255,102,255) # rgb = (0xff,0x66,0xff)
+ ( 0, 51, 0) # rgb = (0x00,0x33,0x00)
+ (255,255, 85) # rgb = (0xff,0xff,0x55)
+ (255,119,119) # rgb = (0xff,0x77,0x77)
+ ( 0, 0,136) # rgb = (0x00,0x00,0x88)
+ (255, 68,255) # rgb = (0xff,0x44,0xff)
+ ( 0, 17, 0) # rgb = (0x00,0x11,0x00)
+ (119,255,255) # rgb = (0x77,0xff,0xff)
+ ( 0,102,102) # rgb = (0x00,0x66,0x66)
+ (255,255,237) # rgb = (0xff,0xff,0xed)
+ ( 0, 1, 0) # rgb = (0x00,0x01,0x00)
+ (255,245,237) # rgb = (0xff,0xf5,0xed)
+ ( 17, 17,255) # rgb = (0x11,0x11,0xff)
+ (255,255, 68) # rgb = (0xff,0xff,0x44)
+ (255, 34,255) # rgb = (0xff,0x22,0xff)
+ (255,237,237) # rgb = (0xff,0xed,0xed)
+ ( 17, 17, 0) # rgb = (0x11,0x11,0x00)
+ (136,255,255) # rgb = (0x88,0xff,0xff)
+ ( 0, 0,119) # rgb = (0x00,0x00,0x77)
+ (147,255, 34) # rgb = (0x93,0xff,0x22)
+ ( 0,220,220) # rgb = (0x00,0xdc,0xdc)
+ ( 51, 51,255) # rgb = (0x33,0x33,0xff)
+ (254, 0,254) # rgb = (0xfe,0x00,0xfe)
+ (186,186,255) # rgb = (0xba,0xba,0xff)
+ (153,255,255) # rgb = (0x99,0xff,0xff)
+ ( 51, 51, 0) # rgb = (0x33,0x33,0x00)
+ ( 99,203, 0) # rgb = (0x63,0xcb,0x00)
+ (186,186, 0) # rgb = (0xba,0xba,0x00)
+ (172,255, 85) # rgb = (0xac,0xff,0x55)
+ (255,255,220) # rgb = (0xff,0xff,0xdc)
+ (255,255, 51) # rgb = (0xff,0xff,0x33)
+ (123,254, 0) # rgb = (0x7b,0xfe,0x00)
+ (237, 0,237) # rgb = (0xed,0x00,0xed)
+ ( 85, 85,255) # rgb = (0x55,0x55,0xff)
+ (170,255,255) # rgb = (0xaa,0xff,0xff)
+ (220,220,255) # rgb = (0xdc,0xdc,0xff)
+ ( 85, 85, 0) # rgb = (0x55,0x55,0x00)
+ ( 0, 0,102) # rgb = (0x00,0x00,0x66)
+ (220,220, 0) # rgb = (0xdc,0xdc,0x00)
+ (220, 0,220) # rgb = (0xdc,0x00,0xdc)
+ (131,255, 1) # rgb = (0x83,0xff,0x01)
+ (119,119,255) # rgb = (0x77,0x77,0xff)
+ (254,254,255) # rgb = (0xfe,0xfe,0xff)
+ (255,255,203) # rgb = (0xff,0xff,0xcb)
+ (255, 85, 85) # rgb = (0xff,0x55,0x55)
+ (119,119, 0) # rgb = (0x77,0x77,0x00)
+ (254,254, 0) # rgb = (0xfe,0xfe,0x00)
+ (203, 0,203) # rgb = (0xcb,0x00,0xcb)
+ ( 0, 0,254) # rgb = (0x00,0x00,0xfe)
+ ( 1, 2, 0) # rgb = (0x01,0x02,0x00)
+ ( 1, 0, 0) # rgb = (0x01,0x00,0x00)
+ ( 18, 34, 0) # rgb = (0x12,0x22,0x00)
+ (255,255, 34) # rgb = (0xff,0xff,0x22)
+ ( 0, 68, 68) # rgb = (0x00,0x44,0x44)
+ (155,255, 51) # rgb = (0x9b,0xff,0x33)
+ (255,212,170) # rgb = (0xff,0xd4,0xaa)
+ ( 0, 0, 85) # rgb = (0x00,0x00,0x55)
+ (153,153,255) # rgb = (0x99,0x99,0xff)
+ (153,153, 0) # rgb = (0x99,0x99,0x00)
+ (186, 0,186) # rgb = (0xba,0x00,0xba)
+ ( 42, 85, 0) # rgb = (0x2a,0x55,0x00)
+ (255,203,203) # rgb = (0xff,0xcb,0xcb)
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+ (255,255,186) # rgb = (0xff,0xff,0xba)
+ (170, 0,170) # rgb = (0xaa,0x00,0xaa)
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+ (255,170,170) # rgb = (0xff,0xaa,0xaa)
+ ( 0, 0,237) # rgb = (0x00,0x00,0xed)
+ ( 0,186,186) # rgb = (0x00,0xba,0xba)
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+ ( 0, 0, 68) # rgb = (0x00,0x00,0x44)
+ ( 0,153,153) # rgb = (0x00,0x99,0x99)
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+ ( 0,220, 0) # rgb = (0x00,0xdc,0x00)
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+ (170, 83, 0) # rgb = (0xaa,0x53,0x00)
+ (119, 0,119) # rgb = (0x77,0x00,0x77)
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+ (255, 51, 51) # rgb = (0xff,0x33,0x33)
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+ (188,255,119) # rgb = (0xbc,0xff,0x77)
+ ( 0,170, 0) # rgb = (0x00,0xaa,0x00)
+ (102, 0,102) # rgb = (0x66,0x00,0x66)
+ ( 0, 34, 34) # rgb = (0x00,0x22,0x22)
+ (220, 0, 0) # rgb = (0xdc,0x00,0x00)
+ (255,203,255) # rgb = (0xff,0xcb,0xff)
+ (220,255,220) # rgb = (0xdc,0xff,0xdc)
+ (255,139, 17) # rgb = (0xff,0x8b,0x11)
+ ( 0, 0,203) # rgb = (0x00,0x00,0xcb)
+ ( 0, 1, 1) # rgb = (0x00,0x01,0x01)
+ ( 85, 0, 85) # rgb = (0x55,0x00,0x55)
+ ( 0,136, 0) # rgb = (0x00,0x88,0x00)
+ ( 0, 0, 34) # rgb = (0x00,0x00,0x22)
+ ( 1,255,255) # rgb = (0x01,0xff,0xff)
+ (203,255,203) # rgb = (0xcb,0xff,0xcb)
+ (237, 0, 0) # rgb = (0xed,0x00,0x00)
+ (255,136,136) # rgb = (0xff,0x88,0x88)
+ ( 68, 0, 68) # rgb = (0x44,0x00,0x44)
+ ( 91,186, 0) # rgb = (0x5b,0xba,0x00)
+ (255,188,119) # rgb = (0xff,0xbc,0x77)
+ (255,153,255) # rgb = (0xff,0x99,0xff)
+ ( 0,102, 0) # rgb = (0x00,0x66,0x00)
+ (186,255,186) # rgb = (0xba,0xff,0xba)
+ ( 0,119,119) # rgb = (0x00,0x77,0x77)
+ (115,237, 0) # rgb = (0x73,0xed,0x00)
+ (254, 0, 0) # rgb = (0xfe,0x00,0x00)
+ ( 51, 0, 51) # rgb = (0x33,0x00,0x33)
+ ( 0, 0,186) # rgb = (0x00,0x00,0xba)
+ (255,119,255) # rgb = (0xff,0x77,0xff)
+ ( 0, 68, 0) # rgb = (0x00,0x44,0x00)
+ (170,255,170) # rgb = (0xaa,0xff,0xaa)
+ (255,254,254) # rgb = (0xff,0xfe,0xfe)
+ ( 0, 0, 17) # rgb = (0x00,0x00,0x11)
+ ( 34, 0, 34) # rgb = (0x22,0x00,0x22)
+ (196,255,136) # rgb = (0xc4,0xff,0x88)
+ ( 0,237,237) # rgb = (0x00,0xed,0xed)
+ (153,255,153) # rgb = (0x99,0xff,0x99)
+ (255, 85,255) # rgb = (0xff,0x55,0xff)
+ ( 0, 34, 0) # rgb = (0x00,0x22,0x00)
+ (255,180,102) # rgb = (0xff,0xb4,0x66)
+ ( 17, 0, 17) # rgb = (0x11,0x00,0x11)
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+ (220,255,186) # rgb = (0xdc,0xff,0xba)
+ (186,255,255) # rgb = (0xba,0xff,0xff)
+ (136,255,136) # rgb = (0x88,0xff,0x88)
+ ( 1, 0, 1) # rgb = (0x01,0x00,0x01)
+ (255, 51,255) # rgb = (0xff,0x33,0xff)
+}
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diff --git a/libgo/go/image/png/testdata/pngsuite/basn4a08.png b/libgo/go/image/png/testdata/pngsuite/basn4a08.png
new file mode 100644
index 000000000..3bb0dd06b
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn4a08.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn4a08.sng b/libgo/go/image/png/testdata/pngsuite/basn4a08.sng
new file mode 100644
index 000000000..b760382a0
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn4a08.sng
@@ -0,0 +1,41 @@
+#SNG: from basn4a08.png
+IHDR {
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+}
diff --git a/libgo/go/image/png/testdata/pngsuite/basn4a16.png b/libgo/go/image/png/testdata/pngsuite/basn4a16.png
new file mode 100644
index 000000000..6dbee9fbd
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn4a16.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn4a16.sng b/libgo/go/image/png/testdata/pngsuite/basn4a16.sng
new file mode 100644
index 000000000..d3b9b4722
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn4a16.sng
@@ -0,0 +1,41 @@
+#SNG: from basn4a16.png
+IHDR {
+ width: 32; height: 32; bitdepth: 16;
+ using grayscale alpha;
+}
+gAMA {1.0000}
+IMAGE {
+ pixels hex
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+}
diff --git a/libgo/go/image/png/testdata/pngsuite/basn6a08.png b/libgo/go/image/png/testdata/pngsuite/basn6a08.png
new file mode 100644
index 000000000..610623085
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn6a08.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn6a08.sng b/libgo/go/image/png/testdata/pngsuite/basn6a08.sng
new file mode 100644
index 000000000..c1e0bf475
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn6a08.sng
@@ -0,0 +1,41 @@
+#SNG: from basn6a08.png
+IHDR {
+ width: 32; height: 32; bitdepth: 8;
+ using color alpha;
+}
+gAMA {1.0000}
+IMAGE {
+ pixels hex
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+}
diff --git a/libgo/go/image/png/testdata/pngsuite/basn6a16.png b/libgo/go/image/png/testdata/pngsuite/basn6a16.png
new file mode 100644
index 000000000..a9bf3cb46
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn6a16.png
Binary files differ
diff --git a/libgo/go/image/png/testdata/pngsuite/basn6a16.sng b/libgo/go/image/png/testdata/pngsuite/basn6a16.sng
new file mode 100644
index 000000000..13c70a4d5
--- /dev/null
+++ b/libgo/go/image/png/testdata/pngsuite/basn6a16.sng
@@ -0,0 +1,41 @@
+#SNG: from basn6a16.png
+IHDR {
+ width: 32; height: 32; bitdepth: 16;
+ using color alpha;
+}
+gAMA {1.0000}
+IMAGE {
+ pixels hex
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