Hi Scott, On Oct 25, 2007, at 4:09 AM, [EMAIL PROTECTED] wrote:
I have openchrome drivers installed for my CN700 Unichrome Pro graphics card ( http://www.via.com.tw/en/products/chipsets/c-series/ cn700/ ) . It increased the glxgears output from 180fps with vesa to around 600fps but has not allowed me to access the opengl pipeline.
[snip]
server glx vendor string: SGI server glx version string: 1.2 server glx extensions: GLX_ARB_multisample, GLX_EXT_import_context, GLX_EXT_texture_from_pixmap, GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_OML_swap_method, GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_visual_select_group client glx vendor string: SGI client glx version string: 1.4 client glx extensions: GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context, GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_allocate_memory, GLX_MESA_copy_sub_buffer, GLX_MESA_swap_control, GLX_MESA_swap_frame_usage, GLX_OML_swap_method, GLX_OML_sync_control, GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGI_video_sync, GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGIX_visual_select_group, GLX_EXT_texture_from_pixmap GLX version: 1.2 GLX extensions: GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context, GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_swap_control, GLX_MESA_swap_frame_usage, GLX_OML_swap_method, GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGI_video_sync, GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_visual_select_group Could you tell me whether this card could be suitable. From reading the specs I really thought It would be sufficient.
As documented at [1], the OpenGL-based pipeline requires GLX 1.3 support (mainly for access to hardware accelerated pbuffers), but the openchrome driver only seems to support GLX 1.2, according to the version string above and the lack of GLX_SGIX_pbuffer in the server side GLX extension list above. Even if we could work around this limitation, since it supports neither pbuffers or the GL_EXT_framebuffer_object extension in hardware, you would find that the OpenGL-based pipeline would not provide much performance improvement (and maybe a loss) for your application.
There is also a driver produced by via. The linux community hsa reported much better success with the openchrome driver however. Could using the VIA driver have a different result?
You could give it a try; I don't know for sure. Please report any findings back to this list if you do try. [1] http://java.sun.com/j2se/1.5.0/docs/guide/2d/new_features.html#ogl Thanks, Chris
Thanks in advance. Scott [Message sent by forum member 'scottb' (scottb)] http://forums.java.net/jive/thread.jspa?messageID=242070 ====================================================================== ===== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA2D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
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