On Thu, Jan 16, 2014 at 1:14 PM, Peter Teoh <htmldeveloper@gmail.com> wrote:
In general how it worked is explained here:
https://www.kernel.org/doc/htmldocs/drm/drm-kms-init.html
Not sure which is the name of your video card, but I think in general all the page flip API should have access to the scan buffer (see link above). For Intel these are possible APIs :
Thanks. I was trying to find out a generic way to access the scan out buffer. The page flip functions looks specific to hardware.
static void do_intel_finish_page_flip(struct drm_device *dev, void intel_finish_page_flip(struct drm_device *dev, int pipe) do_intel_finish_page_flip(dev, crtc); void intel_finish_page_flip_plane(struct drm_device *dev, int plane) do_intel_finish_page_flip(dev, crtc); void intel_prepare_page_flip(struct drm_device *dev, int plane) * is also accompanied by a spurious intel_prepare_page_flip(). inline static void intel_mark_page_flip_active(struct intel_crtc *intel_crtc)
-- Regards, Peter Teoh
It is enough to have a way to get the content of scan out buffer instead of accessing it directly using a pointer. Thanks for you help, Sannu K