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    new license. If we want to, later we can import 4.4RC3 again and pick
    up the files that have the new license, but for now the vendor branch
    is "pure."

completely get rid of NeedVarargsPrototypes
remove a lot of NeedFunctionPrototypes
ansify many function declarations

    debugging a bunch of problems easier), since you can implement less in
    the basic simplest case driver now (not that i'm lazy, mind :-p)

- Reserve areas for back/depth/span when USING_DRI && GLXEXT. This would be
    better in a TransitionTo3d, but we'd need to work with the offscreen
    memory manager for that.
- Misc. fixes to ati_dri.c for DRI+GLX. Needs more work still.

    is all the information we need so far. Put that information into atic,
    and use it correctly in the code (unlike before).

    limit on offscreen memory in the fbdev case. I remember daenzer (who
    originally put that code in) saying he wasn't sure of it, and there
    doesn't seem to be any reason for that limit given how acceleration is
    done.

    pixmap into temporary offscreen storage. Subsequent UploadToScratch may
    clobber the data of previous ones. This allows hardware acceleration of
    composite operations on glyphs.
- Add a new UploadToScreen kaa hook for doing the actual moving of data to
    framebuffer. This would allow us to do things like hostdata blits or
    memcpy to agp and then blit.
- Add an UploadToScreen on ATI which is just memcpy, but which will be
    replaced with a hostdata blit soon.
- Add UploadToScratch on ATI and reserve 64k of scratch space. This
    provided a 3x speedup of rgb24text on my Radeon.

    the build on PPC.

    emitting as a tri fan rather than a tri list. A rect list would save an
    additional vertex (out of 4) per rectangle, but there's no measurable
    speed difference and the tri fan may be useful when transforms come
    into play.

- Fix a bit of whitespace nearby.

    unit.
- Re-enable Radeon's Composite accel now that fonts work again.

- Don't allow src transforms for Copy acceleration.
- Minor whitespace fixes.

    accel. I don't 100% trust that the math works for Saturate, but I can't
    tell from existing information.
- Fix texture pitch fallback checks.
- Fallback when src or mask have transforms.
- Disable Radeon Composite accel until the offset thing is fixed.
- Set offscreenPitch to 64 on Radeon thanks to new information and a kaa
    fix. Fixes acceleration at width!=1024.

    functions. Along with making things more readable, it fixes a problem
    where the coordinates would get messed up if acceleration failed due to
    things like pixmaps being in the wrong locations.

    pixmaps are offscreen and don't have alpha maps. It is the last case
    checked before going to software fallback
- Use the new Composite hook in the ati driver to implement acceleration of
    most Composites that get done in an xcompmgr environment on r100 series
    cards. It is only available when using the DRM. There are still some
    corruption issues, but the DRI is still non-default and I need to get
    this into version control.

    changed.

- Add libdrm and libdri. Portions of the DRI extension are stubbed out.
- Use the DRM in the ATI driver when available. This provides a minor
    performance improvement in x11perf, and opens the possibility of using
    the 3d hardware for acceleration in the future.
- Implement solid fill acceleration for Composite in KAA.
- Implement Blend hook for Composite and use it on r128.
- Fix a bug of mine that resulted in overuse of offscreen memory.
- Fix many miscellaneous bugs in ATI driver and add PCI IDs.