<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <style>  </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> Hi, all<o:p></o:p>             <o:p></o:p>             For the rendering issue, I have written a simple Xlib program that triggers geode HW rendering( lx_do_composite() ). What the application does is as below :<o:p></o:p> <![if !supportLists]>1)       <![endif]>It creates a 100x100 window (color: white) for the destination picture<o:p></o:p> <![if !supportLists]>2)       <![endif]>It creates a picture of 1x1 with the format PICT_x8r8g8b8(color: green) for the source picture, the source picture has the repeat attribute.<o:p></o:p> <![if !supportLists]>3)       <![endif]>It creates a picture of 20x20 with the format PICT_a8(only alpha value to do alpha blend) for the mask picture.<o:p></o:p> <![if !supportLists]>4)       <![endif]>Call the XRenderComposite() to trigger. The dst_x and dst_y are all 50, width and height are all 40. the mask_x and mask_y are all 5. So the alpha blend green region is 15x15<o:p></o:p> See the result of Radeon_X1200.png. It is the standard result. Run on my RS690/SB600 workstation. The rending function FUNC_NAME(RadeonComposite) on X1200 will be called. <o:p></o:p>  <o:p></o:p>             Because our driver can only support limit rendering, I choose this test case. This will use lx_do_composite() in the geode LX. I don’t know why our driver must require the pSrc->width and pSrc->height with value of 1 in lx_prepare_composite(). I follow this requirement in this application. You can see the HW rendering result with the picture of Geode_lx.png on geode platform. Apparently, there must be some HW rendinging bug in our driver. I will use this program instead of the progressbar gtk application to go on debugging.<o:p></o:p> <o:p> </o:p>             Source code is in render_test.zip. <o:p></o:p>             You can compiled it with “gcc –g –v –Wall –o render main.c ops.c tests_10x10.c –Lxxx –lX11 –lXrender”<o:p></o:p> <o:p> </o:p>             With the help of this application’s debug, we will close to the root cause of this long-long ago historical rendering bug on geode platform.<o:p></o:p> <o:p> </o:p> <o:p> </o:p> Thanks,<o:p></o:p> Frank<o:p></o:p> </div> </body> </html>