1e0d702c3a
To support easy buffer exchange at glamor layer, glamor added a new API glamor_egl_exchange_buffers() to exchange two pixmaps' EGL image and fbos and textures without recreating any of them. But this simple method's requirement is that there are two pixmaps. A exceptional case is: If we are using triple buffer when do page flipping, we will have an extra back_buffer which doesn't have a pixmap attached to it. Then each time we set that buffer to a pixmap, we will have to call the create_egl_textured_pixmap to create the corresponding EGL image and fbo and texture for it. This is not efficient. To fix this issue, this commit introduces a new back_pixmap to intel structure to hold the back buffer and corresponding glamor resources. Then we will just need to do the light weight buffer exchanging at both DDX and glamor layer. As the new back pixmap is similar to the screen pixmap and need to be handled carefully when close screen. As the glamor data structure is a per screen data, and will be released at its close screen method. The glamor's close screen method must cleanup the screen pixmap and back pixmap's glamor resources. screen pixmap is easy to get, but there is no good way to store the back pixmap. So the glamor add a new API glamor_egl_create_textured_screen_ext function to pass the back pixmap's pointer to glamor layer. This commit make us depend on glamor commit: 4e58c4f. And we increased the required glamor version from 0.3.0 to 0.3.1 Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> |
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README
xf86-video-intel Open-source X.org graphics driver for Intel graphics http://www.intellinuxgraphics.com/ What is xf86-video-intel ------------------------ The xf86-video-intel module is an open-source 2D graphics driver for the X Window System as implemented by X.org. It supports a variety of Intel graphics chipsets including: i810/i810e/i810-dc100,i815, i830M,845G,852GM,855GM,865G, 915G/GM,945G/GM/GME,946GZ G/GM/GME/Q965, G/Q33,G/Q35,G41,G/Q43,G/GM/Q45 PineView-M (Atom N400 series) PineView-D (Atom D400/D500 series) Where to get more information about the driver ---------------------------------------------- The primary source of information about this and other open-source drivers for Intel graphics is: http://intellinuxgraphics.org/ Documentation specific to the xf86-video-intel driver including possible configuration options for the xorg.conf file can be found in the intel(4) manual page. After installing the driver this documentation can be read with the following command: man intel Mailing list for communication with users and developers of xf86-video-intel: intel-gfx@lists.freedesktop.org Note: Subscription is required before posting, but anyone is free to subscribe. See instructions (and archives) here: http://lists.freedesktop.org/mailman/listinfo/intel-gfx To report bugs encountered with the driver, see: http://intellinuxgraphics.org/how_to_report_bug.html To see bugs that are targeted to be fixed in the next release: https://bugs.freedesktop.org/show_bug.cgi?id=intel-2d-release