kopia lustrzana https://gitlab.com/sane-project/website
199 wiersze
11 KiB
HTML
199 wiersze
11 KiB
HTML
<!-- received="Sun Feb 28 13:41:42 1999 PST" -->
|
||
<!-- sent="Sun, 28 Feb 1999 21:42:30 +0000 (GMT)" -->
|
||
<!-- name="Nick Lamb" -->
|
||
<!-- email="njl98r@ecs.soton.ac.uk" -->
|
||
<!-- subject="Scanimage -T backend tester [patch]" -->
|
||
<!-- id="" -->
|
||
<!-- inreplyto="" -->
|
||
<title>sane-devel: Scanimage -T backend tester [patch]</title>
|
||
<h1>Scanimage -T backend tester [patch]</h1>
|
||
<b>Nick Lamb</b> (<a href="mailto:njl98r@ecs.soton.ac.uk"><i>njl98r@ecs.soton.ac.uk</i></a>)<br>
|
||
<i>Sun, 28 Feb 1999 21:42:30 +0000 (GMT)</i>
|
||
<p>
|
||
<ul>
|
||
<li> <b>Messages sorted by:</b> <a href="date.html#237">[ date ]</a><a href="index.html#237">[ thread ]</a><a href="subject.html#237">[ subject ]</a><a href="author.html#237">[ author ]</a>
|
||
<!-- next="start" -->
|
||
<li> <b>Next message:</b> <a href="0238.html">Nathan Hand: "multiple cams"</a>
|
||
<li> <b>Previous message:</b> <a href="0236.html">David Mosberger-Tang: "pre-test available"</a>
|
||
<!-- nextthread="start" -->
|
||
<!-- reply="end" -->
|
||
</ul>
|
||
<!-- body="start" -->
|
||
This message is in MIME format. The first part should be readable text,<br>
|
||
while the remaining parts are likely unreadable without MIME-aware tools.<br>
|
||
Send mail to <a href="mailto:mime@docserver.cac.washington.edu">mime@docserver.cac.washington.edu</a> for more info.<br>
|
||
<p>
|
||
--1318610500-15712637-920238150=:9019<br>
|
||
Content-Type: TEXT/PLAIN; charset=US-ASCII<br>
|
||
<p>
|
||
<p>
|
||
Well, I no longer have the original detailed explanation for this patch,<br>
|
||
but I suspect that it is archived somewhere...<br>
|
||
<p>
|
||
Although I obviously don't have the opportunity to compare the in-use<br>
|
||
quality of different backends, my instinct is that they could be a lot<br>
|
||
better. So I wrote a test for the problem that bit me when trying to<br>
|
||
learn how SANE works -- buffer over/underflows.<br>
|
||
<p>
|
||
The patch is attached here, and for MIME impaired people, it is available<br>
|
||
from <a href="http://www.staff.ecs.soton.ac.uk/~njl98r/">http://www.staff.ecs.soton.ac.uk/~njl98r/</a><br>
|
||
<p>
|
||
This patch adds a new option scanimage -T, which will test that the<br>
|
||
backend chosen (or the default backend) complies with the SANE<br>
|
||
standard. In this version the test only checks for the behaviour with<br>
|
||
regard to sane_read(...), ie that the backend will never write more<br>
|
||
data than requested, and that it correctly reports how much data it<br>
|
||
wrote to the buffer.<br>
|
||
<p>
|
||
In the same vein, I'm working on a backend which offers a number of<br>
|
||
virtual devices, each of which can offer a static image which is<br>
|
||
generated by a simple algorithm. This is intended to be a test for a<br>
|
||
user who isn't sure that SANE is working, or for frontend writers who<br>
|
||
don't have different hardware available for testing features.<br>
|
||
<p>
|
||
I really like the SANE standard, and I hope this stuff helps.<br>
|
||
<p>
|
||
Nick.<br>
|
||
<p>
|
||
--1318610500-15712637-920238150=:9019<br>
|
||
Content-Type: TEXT/PLAIN; charset=US-ASCII; name=scanimage-test-patch<br>
|
||
Content-Transfer-Encoding: BASE64<br>
|
||
Content-ID: <<a href="mailto:Pine.LNX.3.96.990228214230.9019B@chef.ecs.soton.ac.uk">Pine.LNX.3.96.990228214230.9019B@chef.ecs.soton.ac.uk</a>><br>
|
||
Content-Description: Scanimage patch<br>
|
||
<p>
|
||
LS0tIHNjYW5pbWFnZS5jLm9sZAlUaHUgRGVjIDMxIDEzOjIzOjU1IDE5OTgN<br>
|
||
CisrKyBzY2FuaW1hZ2UuYwlUaHUgRGVjIDMxIDEzOjM4OjA0IDE5OTgNCkBA<br>
|
||
IC01OSwxOCArNTksMTkgQEANCiAgIHsibGlzdC1kZXZpY2VzIiwgbm9fYXJn<br>
|
||
dW1lbnQsIE5VTEwsICdMJ30sDQogICB7ImhlbHAiLCBub19hcmd1bWVudCwg<br>
|
||
TlVMTCwgJ2gnfSwNCiAgIHsidmVyYm9zZSIsIG5vX2FyZ3VtZW50LCBOVUxM<br>
|
||
LCAndid9LA0KKyAgeyJ0ZXN0Iiwgbm9fYXJndW1lbnQsIE5VTEwsICdUJ30s<br>
|
||
DQogICB7InZlcnNpb24iLCBub19hcmd1bWVudCwgTlVMTCwgJ1YnfSwNCiAg<br>
|
||
IHswLCB9DQogfTsNCiANCi0jZGVmaW5lIEJBU0VfT1BUU1RSSU5HCSJkOmhM<br>
|
||
dlYiDQorI2RlZmluZSBCQVNFX09QVFNUUklORwkiZDpoTHZWVCINCiAjZGVm<br>
|
||
aW5lIFNUUklQX0hFSUdIVAkyNTYJLyogIyBsaW5lcyB3ZSBpbmNyZW1lbnQg<br>
|
||
aW1hZ2UgaGVpZ2h0ICovDQogDQogc3RhdGljIHN0cnVjdCBvcHRpb24gKiBh<br>
|
||
bGxfb3B0aW9uczsNCiBzdGF0aWMgaW50IG9wdGlvbl9udW1iZXJfbGVuOw0K<br>
|
||
IHN0YXRpYyBpbnQgKiBvcHRpb25fbnVtYmVyOw0KIHN0YXRpYyBTQU5FX0hh<br>
|
||
bmRsZSBkZXZpY2U7DQotc3RhdGljIGludCB2ZXJib3NlOw0KK3N0YXRpYyBp<br>
|
||
bnQgdmVyYm9zZSwgdGVzdDsNCiBzdGF0aWMgaW50IGhlbHA7DQogc3RhdGlj<br>
|
||
IGNvbnN0IGNoYXIgKiBwcm9nX25hbWU7DQogc3RhdGljIFNBTkVfT3B0aW9u<br>
|
||
X0Rlc2NyaXB0b3Igd2luZG93X29wdGlvblsyXTsNCkBAIC05MzgsNiArOTM5<br>
|
||
LDEwNiBAQA0KICAgICBmcmVlIChpbWFnZS5kYXRhKTsNCiB9DQogDQorc3Rh<br>
|
||
dGljIHZvaWQgY2xlYW5fYnVmZmVyKFNBTkVfQnl0ZSAqYnVmZmVyLCBpbnQg<br>
|
||
c2l6ZSkgew0KKyAgaW50IGk7DQorICBmb3IgKGk9IDA7IGkgPCBzaXplOyAr<br>
|
||
K2kpIHsNCisgICAgYnVmZmVyW2ldPSAweDIzOw0KKyAgfQ0KK30NCisNCitz<br>
|
||
dGF0aWMgdm9pZA0KK3Bhc3NfZmFpbCAoaW50IG1heCwgaW50IGxlbiwgU0FO<br>
|
||
RV9CeXRlICpidWZmZXIsIFNBTkVfU3RhdHVzIHN0YXR1cykgew0KKyAgaWYg<br>
|
||
KHN0YXR1cyAhPSBTQU5FX1NUQVRVU19HT09EKSB7DQorICAgIGZwcmludGYo<br>
|
||
c3RkZXJyLCAiRkFJTCBFcnJvcjogJXNcbiIsIHNhbmVfc3Ryc3RhdHVzKHN0<br>
|
||
YXR1cykpOw0KKyAgfSBlbHNlIGlmIChidWZmZXJbbGVuXSAhPSAweDIzKSB7<br>
|
||
DQorICAgIHdoaWxlKGJ1ZmZlcltsZW5dICE9IDB4MjMpIGxlbisrOw0KKyAg<br>
|
||
ICBmcHJpbnRmKHN0ZGVyciwgIkZBSUwgQ2hlYXQ6ICVkIGJ5dGVzXG4iLCBs<br>
|
||
ZW4pOw0KKyAgfSBlbHNlIGlmIChsZW4gPiBtYXgpIHsNCisgICAgZnByaW50<br>
|
||
ZihzdGRlcnIsICJGQUlMIE92ZXJmbG93OiAlZCBieXRlc1xuIiwgbGVuKTsN<br>
|
||
CisgIH0gZWxzZSBpZiAobGVuID09IDApIHsNCisgICAgZnByaW50ZihzdGRl<br>
|
||
cnIsICJGQUlMIE5vIGRhdGFcbiIpOw0KKyAgfSBlbHNlIHsNCisgICAgZnBy<br>
|
||
aW50ZihzdGRlcnIsICJQQVNTXG4iKTsNCisgIH0NCit9DQorDQorc3RhdGlj<br>
|
||
IHZvaWQNCit0ZXN0X2l0ICh2b2lkKQ0KK3sNCisgIGludCBpLCBsZW47DQor<br>
|
||
ICBTQU5FX1BhcmFtZXRlcnMgcGFybTsNCisgIFNBTkVfU3RhdHVzIHN0YXR1<br>
|
||
czsNCisgIEltYWdlIGltYWdlID0gezAsIH07DQorICBzdGF0aWMgY29uc3Qg<br>
|
||
Y2hhciAqZm9ybWF0X25hbWVbXSA9DQorICAgIHsgImdyYXkiLCAiUkdCIiwg<br>
|
||
InJlZCIsICJncmVlbiIsICJibHVlIiB9Ow0KKw0KKyAgc3RhdHVzID0gc2Fu<br>
|
||
ZV9zdGFydCAoZGV2aWNlKTsNCisgIGlmIChzdGF0dXMgIT0gU0FORV9TVEFU<br>
|
||
VVNfR09PRCkgew0KKyAgICBmcHJpbnRmIChzdGRlcnIsICIlczogc2FuZV9z<br>
|
||
dGFydDogJXNcbiIsDQorICAgICAgICAgICAgIHByb2dfbmFtZSwgc2FuZV9z<br>
|
||
dHJzdGF0dXMgKHN0YXR1cykpOw0KKyAgICBnb3RvIGNsZWFudXA7DQorICB9<br>
|
||
DQorDQorICBzdGF0dXMgPSBzYW5lX2dldF9wYXJhbWV0ZXJzIChkZXZpY2Us<br>
|
||
ICZwYXJtKTsNCisgIGlmIChzdGF0dXMgIT0gU0FORV9TVEFUVVNfR09PRCkg<br>
|
||
ew0KKyAgICBmcHJpbnRmIChzdGRlcnIsICIlczogc2FuZV9nZXRfcGFyYW1l<br>
|
||
dGVyczogJXNcbiIsDQorICAgICAgICAgICAgIHByb2dfbmFtZSwgc2FuZV9z<br>
|
||
dHJzdGF0dXMgKHN0YXR1cykpOw0KKyAgICBnb3RvIGNsZWFudXA7DQorICB9<br>
|
||
DQorDQorICBpZiAocGFybS5saW5lcyA+PSAwKSB7DQorICAgIGZwcmludGYg<br>
|
||
KHN0ZGVyciwgIiVzOiBzY2FubmluZyBpbWFnZSBvZiBzaXplICVkeCVkIHBp<br>
|
||
eGVscyBhdCAiDQorICAgICAgICAgICAgICIlZCBiaXRzL3BpeGVsXG4iLA0K<br>
|
||
KyAgICAgICAgICAgICBwcm9nX25hbWUsIHBhcm0ucGl4ZWxzX3Blcl9saW5l<br>
|
||
LCBwYXJtLmxpbmVzLA0KKyAgICAgICAgICAgICA4ICogcGFybS5ieXRlc19w<br>
|
||
ZXJfbGluZSAvIHBhcm0ucGl4ZWxzX3Blcl9saW5lKTsNCisgIH0gZWxzZSB7<br>
|
||
DQorICAgIGZwcmludGYgKHN0ZGVyciwgIiVzOiBzY2FubmluZyBpbWFnZSAl<br>
|
||
ZCBwaXhlbHMgd2lkZSBhbmQgIg0KKyAgICAgICAgICAgICAidmFyaWFibGUg<br>
|
||
aGVpZ2h0IGF0ICVkIGJpdHMvcGl4ZWxcbiIsDQorICAgICAgICAgICAgIHBy<br>
|
||
b2dfbmFtZSwgcGFybS5waXhlbHNfcGVyX2xpbmUsDQorICAgICAgICAgICAg<br>
|
||
IDggKiBwYXJtLmJ5dGVzX3Blcl9saW5lIC8gcGFybS5waXhlbHNfcGVyX2xp<br>
|
||
bmUpOw0KKyAgfQ0KKyAgZnByaW50ZiAoc3RkZXJyLCAiJXM6IGFjcXVpcmlu<br>
|
||
ZyAlcyBmcmFtZSwgJWQgYml0cy9zYW1wbGVcbiIsDQorICAgICAgICAgICBw<br>
|
||
cm9nX25hbWUsIGZvcm1hdF9uYW1lW3Bhcm0uZm9ybWF0XSwgcGFybS5kZXB0<br>
|
||
aCk7DQorDQorICBpbWFnZS5kYXRhPSBtYWxsb2MocGFybS5ieXRlc19wZXJf<br>
|
||
bGluZSAqIDIpOw0KKw0KKyAgY2xlYW5fYnVmZmVyKGltYWdlLmRhdGEsIHBh<br>
|
||
cm0uYnl0ZXNfcGVyX2xpbmUgKiAyKTsNCisgIGZwcmludGYgKHN0ZGVyciwg<br>
|
||
IiVzOiByZWFkaW5nIG9uZSBzY2FubGluZSwgJWQgYnl0ZXMuLi5cdCIsIHBy<br>
|
||
b2dfbmFtZSwNCisgICAgICAgICAgIHBhcm0uYnl0ZXNfcGVyX2xpbmUpOw0K<br>
|
||
KyAgc3RhdHVzPSBzYW5lX3JlYWQoZGV2aWNlLCBpbWFnZS5kYXRhLCBwYXJt<br>
|
||
LmJ5dGVzX3Blcl9saW5lLCAmbGVuKTsNCisgIHBhc3NfZmFpbChwYXJtLmJ5<br>
|
||
dGVzX3Blcl9saW5lLCBsZW4sIGltYWdlLmRhdGEsIHN0YXR1cyk7DQorICBp<br>
|
||
ZiAoc3RhdHVzICE9IFNBTkVfU1RBVFVTX0dPT0QpIGdvdG8gY2xlYW51cDsN<br>
|
||
CisNCisgIGNsZWFuX2J1ZmZlcihpbWFnZS5kYXRhLCBwYXJtLmJ5dGVzX3Bl<br>
|
||
cl9saW5lICogMik7DQorICBmcHJpbnRmIChzdGRlcnIsICIlczogcmVhZGlu<br>
|
||
ZyBvbmUgYnl0ZS4uLlx0XHQiLCBwcm9nX25hbWUpOw0KKyAgc3RhdHVzPSBz<br>
|
||
YW5lX3JlYWQoZGV2aWNlLCBpbWFnZS5kYXRhLCAxLCAmbGVuKTsNCisgIHBh<br>
|
||
c3NfZmFpbCgxLCBsZW4sIGltYWdlLmRhdGEsIHN0YXR1cyk7DQorICBpZiAo<br>
|
||
c3RhdHVzICE9IFNBTkVfU1RBVFVTX0dPT0QpIGdvdG8gY2xlYW51cDsNCisN<br>
|
||
CisgIGZvciAoaT0yOyBpIDwgcGFybS5ieXRlc19wZXJfbGluZSAqIDI7IGkq<br>
|
||
PTIpIHsNCisgICAgY2xlYW5fYnVmZmVyKGltYWdlLmRhdGEsIHBhcm0uYnl0<br>
|
||
ZXNfcGVyX2xpbmUgKiAyKTsNCisgICAgZnByaW50ZiAoc3RkZXJyLCAiJXM6<br>
|
||
IHN0ZXBwZWQgcmVhZCwgJWQgYnl0ZXMuLi4gXHQiLCBwcm9nX25hbWUsDQor<br>
|
||
ICAgICAgICAgICAgIGkpOw0KKyAgICBzdGF0dXM9IHNhbmVfcmVhZChkZXZp<br>
|
||
Y2UsIGltYWdlLmRhdGEsIGksICZsZW4pOw0KKyAgICBwYXNzX2ZhaWwoaSwg<br>
|
||
bGVuLCBpbWFnZS5kYXRhLCBzdGF0dXMpOw0KKyAgICBpZiAoc3RhdHVzICE9<br>
|
||
IFNBTkVfU1RBVFVTX0dPT0QpIGdvdG8gY2xlYW51cDsNCisgIH0NCisNCisg<br>
|
||
IGZvciAoaS89MjsgaSA+IDI7IGkvPTIpIHsNCisgICAgY2xlYW5fYnVmZmVy<br>
|
||
KGltYWdlLmRhdGEsIHBhcm0uYnl0ZXNfcGVyX2xpbmUgKiAyKTsNCisgICAg<br>
|
||
ZnByaW50ZiAoc3RkZXJyLCAiJXM6IHN0ZXBwZWQgcmVhZCwgJWQgYnl0ZXMu<br>
|
||
Li4gXHQiLCBwcm9nX25hbWUsDQorICAgICAgICAgICAgIGkgLSAxKTsNCisg<br>
|
||
ICAgc3RhdHVzPSBzYW5lX3JlYWQoZGV2aWNlLCBpbWFnZS5kYXRhLCBpIC0g<br>
|
||
MSwgJmxlbik7DQorICAgIHBhc3NfZmFpbChpIC0gMSwgbGVuLCBpbWFnZS5k<br>
|
||
YXRhLCBzdGF0dXMpOw0KKyAgICBpZiAoc3RhdHVzICE9IFNBTkVfU1RBVFVT<br>
|
||
X0dPT0QpIGdvdG8gY2xlYW51cDsNCisgIH0NCisgDQorY2xlYW51cDoNCisg<br>
|
||
IHNhbmVfY2FuY2VsIChkZXZpY2UpOw0KKyAgaWYgKGltYWdlLmRhdGEpDQor<br>
|
||
ICAgIGZyZWUgKGltYWdlLmRhdGEpOw0KK30NCisNCiBpbnQNCiBtYWluIChp<br>
|
||
bnQgYXJnYywgY2hhciAqKmFyZ3YpDQogew0KQEAgLTk3NSw2ICsxMDc2LDcg<br>
|
||
QEANCiAJY2FzZSAnZCc6IGRldm5hbWUgPSBvcHRhcmc7IGJyZWFrOw0KIAlj<br>
|
||
YXNlICdoJzogaGVscCA9IDE7IGJyZWFrOw0KIAljYXNlICd2JzogKyt2ZXJi<br>
|
||
b3NlOyBicmVhazsNCisJY2FzZSAnVCc6IHRlc3Q9IDE7IGJyZWFrOw0KIAlj<br>
|
||
YXNlICdMJzoNCiAJICB7DQogCSAgICBpbnQgaTsNCkBAIC0xMDE0LDYgKzEx<br>
|
||
MTYsNyBAQA0KIC1kLCAtLWRldmljZS1uYW1lPURFVklDRSAgIHVzZSBhIGdp<br>
|
||
dmVuIHNjYW5uZXIgZGV2aWNlXG5cDQogLWgsIC0taGVscCAgICAgICAgICAg<br>
|
||
ICAgICAgZGlzcGxheSB0aGlzIGhlbHAgbWVzc2FnZSBhbmQgZXhpdFxuXA0K<br>
|
||
IC1MLCAtLWxpc3QtZGV2aWNlcyAgICAgICAgIHNob3cgYXZhaWxhYmxlIHNj<br>
|
||
YW5uZXIgZGV2aWNlc1xuXA0KKy1ULCAtLXRlc3QgICAgICAgICAgICAgICAg<br>
|
||
IHRlc3QgYmFja2VuZCB0aG9yb3VnaGx5XG5cDQogLXYsIC0tdmVyYm9zZSAg<br>
|
||
ICAgICAgICAgICAgZ2l2ZSBldmVuIG1vcmUgc3RhdHVzIG1lc3NhZ2VzXG5c<br>
|
||
DQogLVYsIC0tdmVyc2lvbiAgICAgICAgICAgICAgcHJpbnQgdmVyc2lvbiBp<br>
|
||
bmZvcm1hdGlvblxuIiwNCiAJICAgIHByb2dfbmFtZSk7DQpAQCAtMTEyMSw3<br>
|
||
ICsxMjI0LDcgQEANCiAJICAgIGNhc2UgJz8nOg0KIAkgICAgICBleGl0ICgx<br>
|
||
KTsJLyogZXJyb3IgbWVzc2FnZSBpcyBwcmludGVkIGJ5IGdldG9wdF9sb25n<br>
|
||
KCkgKi8NCiANCi0JICAgIGNhc2UgJ2QnOiBjYXNlICdoJzogY2FzZSAndic6<br>
|
||
IGNhc2UgJ1YnOg0KKwkgICAgY2FzZSAnZCc6IGNhc2UgJ2gnOiBjYXNlICd2<br>
|
||
JzogY2FzZSAnVic6IGNhc2UgJ1QnOg0KIAkgICAgICAvKiBwcmV2aW91c2x5<br>
|
||
IGhhbmRsZWQgb3B0aW9ucyAqLw0KIAkgICAgICBicmVhazsNCiANCkBAIC0x<br>
|
||
MjMxLDcgKzEzMzQsMTAgQEANCiAgIHNpZ25hbCAoU0lHUElQRSwgc2lnaGFu<br>
|
||
ZGxlcik7DQogICBzaWduYWwgKFNJR1RFUk0sIHNpZ2hhbmRsZXIpOw0KIA0K<br>
|
||
LSAgc2Nhbl9pdCAoKTsNCisgIGlmICh0ZXN0ID09IDApIA0KKyAgICBzY2Fu<br>
|
||
X2l0ICgpOw0KKyAgZWxzZQ0KKyAgICB0ZXN0X2l0ICgpOw0KIA0KICAgc2Fu<br>
|
||
ZV9jbG9zZSAoZGV2aWNlKTsNCiANCg==<br>
|
||
--1318610500-15712637-920238150=:9019--<br>
|
||
<p>
|
||
<pre>
|
||
--
|
||
Source code, list archive, and docs: <a href="http://www.mostang.com/sane/">http://www.mostang.com/sane/</a>
|
||
To unsubscribe: echo unsubscribe sane-devel | mail <a href="mailto:majordomo@mostang.com">majordomo@mostang.com</a>
|
||
</pre>
|
||
<!-- body="end" -->
|
||
<p>
|
||
<ul>
|
||
<!-- next="start" -->
|
||
<li> <b>Next message:</b> <a href="0238.html">Nathan Hand: "multiple cams"</a>
|
||
<li> <b>Previous message:</b> <a href="0236.html">David Mosberger-Tang: "pre-test available"</a>
|
||
<!-- nextthread="start" -->
|
||
<!-- reply="end" -->
|
||
</ul>
|