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<p class=MsoPlainText>> -----Original Message-----<o:p></o:p></p>
<p class=MsoPlainText>> From: Horodyski Marek (PZUZ)<o:p></o:p></p>
<p class=MsoPlainText>> Sent: Friday, July 15, 2011 12:28 PM<o:p></o:p></p>
<p class=MsoPlainText>> To: cairo@cairographics.org<o:p></o:p></p>
<p class=MsoPlainText>> Subject: Cairo and multithreading einvironment.<o:p></o:p></p>
<p class=MsoPlainText>[…] <o:p></o:p></p>
<p class=MsoPlainText>> Cairo works well in an sigle thread environment, but
I have problems in<o:p></o:p></p>
<p class=MsoPlainText>> multi-threaded.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>When I use Cairo In MultiThread environment without mutex
synchronize, on monitor I see :<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><img width=640 height=129 id="Obraz_x0020_2"
src="cid:image001.png@01CC4793.89BEF6E0"
alt="cid:image002.png@01CC1723.7C2D4EA0"><o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>I can work with mutex synchronize, but but it costs time
<span style='font-family:Wingdings'>L</span><o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Example code :<o:p></o:p></p>
<p class=MsoPlainText><span style='color:black'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='color:black'>hSurface :=
cairo_pdf_surface_create( "TEST.PDF", 566.9, 793.7 ) // 200x280
mm in pt<o:p></o:p></span></p>
<p class=MsoPlainText><span style='color:black'>hCairo :=
cairo_create( hSurface )<o:p></o:p></span></p>
<p class=MsoPlainText><span style='color:black'>cairo_set_source_rgb( hCairo,
0, 0, 0 )<o:p></o:p></span></p>
<p class=MsoPlainText><span style='color:black'>cairo_select_font_face( hCairo,
"verdana", CAIRO_FONT_SLANT_NORMAL, 0 )<o:p></o:p></span></p>
<p class=MsoPlainText><span style='color:black'>cairo_set_font_size( hCairo, 6
)<o:p></o:p></span></p>
<p class=MsoPlainText><span style='color:black'>cairo_move_to( hCairo, 1, 7 )<o:p></o:p></span></p>
<p class=MsoPlainText><span style='color:black'>cairo_show_text( hCairo, "Some
text")<o:p></o:p></span></p>
<p class=MsoPlainText><span style='color:black'>...<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas;
color:black'>cairo_show_page( hCairo )<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas;
color:black'>cairo_destroy( hCairo )<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas;
color:black'>cairo_surface_destroy( hSurface )<o:p></o:p></span></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>String <span style='color:black'>"TEST.PDF" in different
thread are differ.</span><o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Regards,<o:p></o:p></p>
<p class=MsoPlainText>Marek Horodyski<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
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