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<P>Hi,</P>
<P><SPAN style="FONT-SIZE: 9pt">We are writing some test cases to compare cairo gl backend with cairo image backend. </SPAN></P>
<P><STRONG><SPAN style="FONT-SIZE: 9pt">1) Image clipping does not work for </SPAN><SPAN style="FONT-SIZE: 9pt"><SPAN style="FONT-SIZE: 9pt">CAIRO_OPERATOR_SOURCE.</SPAN></SPAN></STRONG></P>
<P><SPAN style="FONT-SIZE: 9pt">Though it works with bounded rectangle with cairo_fill. </SPAN></P>
<P><SPAN style="FONT-SIZE: 9pt">Below applicaiton code does NOT work. It throws gl error 1282(Invalid Operation)</SPAN></P>
<P><SPAN style="FONT-SIZE: 9pt">---------------------------------------------------------<BR>cairo_rectangle(m_cr, 0, 0, width,height);<BR>cairo_clip(m_cr);<BR>cairo_set_source_surface(m_cr,glSrcSurface, 0 , 0);<BR>cairo_paint(m_cr);<BR>---------------------------------------------------------<BR>What works is below:<BR>-------------------------<BR>cairo_rectangle(m_cr, 0, 0, width,height);<BR>cairo_set_source_surface(m_cr, glSrcSurface, 0 , 0);<BR>cairo_fill(m_cr);<BR>-------------------------</SPAN></P>
<P><SPAN style="FONT-SIZE: 9pt"></SPAN><SPAN style="FONT-SIZE: 9pt"><FONT size=2>Image clipping with image surface works well.</FONT></SPAN></P>
<P><SPAN style="FONT-SIZE: 9pt"><FONT size=2>Please suggest waht could be the issue.</FONT></SPAN><SPAN style="FONT-SIZE: 9pt"><FONT size=2></FONT></SPAN></P>
<P><SPAN style="FONT-SIZE: 9pt"><FONT size=2>Thanks in advance,</FONT></SPAN></P>
<P><SPAN style="FONT-SIZE: 9pt"><FONT size=2>Sumit</P></FONT></SPAN>
<P><SPAN style="FONT-SIZE: 9pt"></SPAN> </P><!--SP:sumit.panwar--><!--sumit.panwar:EP-->
<P> </P>
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