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List: freedesktop-xorg
Subject: Issue: cairo-with-xlib-xrender option -->rendering is not proper,by
From: S MUTHU KUMAR <smuthu.kr () samsung ! com>
Date: 2010-01-30 11:07:33
Message-ID: 0KX2008KT48LPA () ms13 ! samsung ! com
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<HTML><HEAD>
<META http-equiv=Content-Type content='text/html; charset=windows-1252'>
<title>Samsung Enterprise Portal mySingle</title>
<style> P, td, li {font-family:Arial, arial; font-size:9pt; \
margin-top:5px;margin-bottom:5px;} body{font-family:Arial, arial; \
font-size:9pt;}</style> </HEAD><BODY>Hi,<div class="gmail_quote"><div \
class="gmail_quote"> <div class="gmail_quote"><div class="im">We are trying to port \
gtk-x11 on to an ARM platform and check the rendering performance of gtk on tinyx. \
For that i compiled cairo-x11 with xlib-xrender enabled. But when i run any \
application that uses cairo the fonts are not rendered properly and some black boxes \
are overlapping the some characters of the string and some extra lines are coming \
behind some characters (as shown in the attached screenshot of gtkperf application \
that uses cairo with xlib-xreneder option enabled). But if i compile cairo by \
disabling xlib-xreneder the display is good and fonts are displayed properly, but the \
time taken for rendering is increasing two times. I think as xrender takes advantage \
of acceleration available in tinyx/x11 it is speeding up the rendering. But i didnt \
make any changes in either xrender code or cairo code. <br>
<br> Can anyone identify the reason for this improper display if we enable \
xlib-xrender option in cairo. Is it a bug in cairo/xrender implementation or we are \
missing some thing else in the configuration?? The configuration settings we are \
using is mentioned below.<br>
<br>we are using cairo-1.8.0, gtk+-2.12.3, pango-1.22.1, fontconfig-2.6.0, \
freetype-2.3.7, pixman-0.12.0 and tinyx server xorg-server-1.5.1 (R7.4 release) and \
arm-v7 toolchain used for cross compilation.<br><br>cairo configuration settings:<br>
<br>./configure --enable-xlib --enable-xlib-xrender --disable-pdf --disable-ps \
--disable-svg --enable-png=yes --with-x \
--disable-some-floating-point<br><br><b>please find the
below screen-shot which could explain the above mentioned rendering \
problem.</b><br>
</div></div><br><img src="cid:XRB2NHII4MS7@namo.co.kr" align="bottom" width="730" \
height="288" border="0" alt="img1.gif"></div><br>Waiting for ur valuable \
reply....<br><br> </div><p> Thanks in advance</p>
<p> </p>
<p>Muthukumar</p>
<p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p>  \
;</p></x-BODY><p> </p><p> </p><p> </p><p> </p></x-BODY><p> </p><p> </p><!--SP:smuthu.kr--><p \
style="line-height:100%; margin-top:0; margin-bottom:0;"><font color="blue" \
face="Arial Narrow" size="3">S.Muthukumar | Lead Engineer
-DM R&D | Samsung India Software Center,Noida | Office Phone - 91- \
120-4081234-36</font><font face="Arial Narrow" size="3"> , </font><font \
color="blue" face="Arial Narrow" size="3"> Ext : 1636 | Mobile : \
9953556847</font></p> <P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt; mso-no-proof: yes"><A
href="http://www.samsungindia.com/sisc/" target="_blank"><FONT face=Verdana \
size=1><SPAN lang=EN-GB
style="FONT-SIZE: 8pt; FONT-FAMILY: Verdana; mso-ansi-language: \
EN-GB">www.samsungindia.com/sisc/</SPAN></FONT></A></SPAN></FONT></P><!--smuthu.kr:EP--><p> </p><p> </p></BODY></HTML>
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