[Spice-devel] spice-gtk how to use opengl

[thddu]

      The first issue has been resolved. Because I have a bad modification in qxl dirver. Spicec don't core dumped after when I change the qxl dirver to original. But the preformance isn't better than using sw canvas.
      Can you give me some precious suggestion if i want to improve the gl canvas performance. Thank you!


At 2013-11-20 18:34:30,"Marc-André Lureau" <mlureau at redhat.com> wrote:
>
>
>----- Original Message -----
>> Old spicec can use canvas type "gl_fbo and gl_pbuff" . But when i connect to
>> spice server , spicec core dumped and print "Spice-Warning **:
>> ../spice-common/common/canvas_base.c:1145:canvas_get_image_internal: should
>> not be reached".
>
>How did you compile spice, do you have OpenGL: yes in configure log? Can you get a backtrace of this warning? (break at canvas_base.c:1145)
>
>> In addition, spice gtk can't choose canvas type. So spice gtk how to use
>> opengl. Thank you!
>
>Spice-gtk currently doesn't support opengl canvas. It may have some support added in the next year (for local virgil support).
>
>However, don't expect better performance from using the gl canvas today (it's ~2x time slower on my laptop). The 2d canvas code isn't probably fitting the gpu very well. (too much upload/read of textures, not enough batching, old gl code lacking optimization etc.)


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