• Qiang Yu's avatar
    egl,glx: query dri integer to expose EGL/GLX_EXT_buffer_age · 20cf81ff
    Qiang Yu authored
    Add __DRI2_RENDERER_EXPOSE_BUFFER_AGE dri integer query for
    driver to determine if want to expose EGL/GLX_EXT_buffer_age.
    
    Without knowing damage region first, some tile buffer based
    GPU like ARM Mali Utgard has to load whole render target to
    tile buffer before partitial update, then write them back.
    
    Expose this extension will mis-lead application to use it
    which will make performance worse for this kind of GPU.
    
    EGL_KHR_partial_update is better choice for this kind of GPU.
    Signed-off-by: Qiang Yu's avatarQiang Yu <yuq825@gmail.com>
    20cf81ff
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