[sane-devel] proposel for buffer size increase frontends scanimage ..

[gerard klaver]

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Hello,

Proposal to increase the buffersize of buffer[32 * 1024] to
buffer[1024 * 1024] for frontend scanimage for diff zie attachment.

In this way the write cycle in sane_read will be reduced and is it
possible to write a image from for example a 640 x 480  webcam in
one cycle to the frontend buffer.

For other frontends its the same but i tested only xscanimage at this
moment (patch (with other patches) is in sane/experimental but needs a
update) 

For:
saned     ??
scanadf   ??

Others
??


Any comments?
-- 
--------
m.vr.gr.
Gerard Klaver

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--- scanimage-orig.c	2005-01-18 17:33:20.000000000 +0100
+++ scanimage.c	2005-01-18 17:34:03.000000000 +0100
@@ -1020,7 +1020,7 @@
 scan_it (void)
 {
   int i, len, first_frame = 1, offset = 0, must_buffer = 0;
-  SANE_Byte buffer[32 * 1024], min = 0xff, max = 0;
+  SANE_Byte buffer[1024 * 1024], min = 0xff, max = 0;
   SANE_Parameters parm;
   SANE_Status status;
   Image image = { 0, 0, 0, 0, 0, 0 };

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