[X2Go-Commits] [x2gokdrive] 01/01: change from alder32 to crc32 to avoid collisions on small frames.

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x2go pushed a commit to branch master
in repository x2gokdrive.

commit 71604606657a85ed16b9fcfb53f014f77d5bcdc9
Author: Oleksandr Shneyder <o.shneyder at phoca-gmbh.de>
Date:   Tue Sep 20 11:06:42 2022 +0200

    change from alder32 to crc32 to avoid collisions on small frames.
---
 debian/changelog   | 1 +
 x2gokdriveremote.c | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/debian/changelog b/debian/changelog
index 7d5feb2..eeabf70 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -33,6 +33,7 @@ x2gokdrive (0.0.0.1-0x2go1) UNRELEASED; urgency=medium
     - don't show invisible windows.
     - sending KEYRELEASE immediately after KEYPRESS to avoid the "key sticking".
     - set initial geometry form the -geometry command line option.
+    - change from alder32 to crc32 to avoid collisions on small frames.
 
   [ Mihai Moldovan ]
   * Initial release:
diff --git a/x2gokdriveremote.c b/x2gokdriveremote.c
index 7726648..04c47ca 100644
--- a/x2gokdriveremote.c
+++ b/x2gokdriveremote.c
@@ -4518,13 +4518,13 @@ remote_paint_rect(KdScreenInfo *screen,
 
 uint32_t calculate_crc(uint32_t width, uint32_t height, int32_t dx, int32_t dy)
 {
-    uint32_t crc=adler32(0L, Z_NULL, 0);
+    uint32_t crc=crc32(0L, Z_NULL, 0);
 
 
     pthread_mutex_lock(&remoteVars.mainimg_mutex);
     for(uint32_t y=0; y< height;++y)
     {
-        crc=adler32(crc,remoteVars.main_img+ ((y+dy)*remoteVars.main_img_width + dx)*XSERVERBPP, width*XSERVERBPP);
+        crc=crc32(crc,remoteVars.main_img+ ((y+dy)*remoteVars.main_img_width + dx)*XSERVERBPP, width*XSERVERBPP);
     }
 
     pthread_mutex_unlock(&remoteVars.mainimg_mutex);

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