devPrivate.ptr when pointing at offscreen memory, outside of
exaPrepare/FinishAccess(). This was used with fakexa to find (by NULL
dereference) many instances of un-Prepared CPU access to the
framebuffer:
- GC tiles used in several ops when fillStyle == FillTiled were never
Prepared.
- Migration could lead to un-Prepared access to mask data in render's
Trapezoids and Triangles
- PutImage's UploadToScreen failure fallback failed to Prepare.
acceleration, and set the migration scheme to Always on init (since
this is all for testing, and Always should make migration happen more
frequently than Greedy).
same width/height for front-buffer drawing. The fakexa code then uses
this extra space for offscreen pixmaps. Note that this tones down the
absurdity of fakexa's offscreen pixmap alignment requirements (odd
alignment is too weird, so stick with "24", which is still strange but
exists out there). It also fixes a couple of bugs in the fakexa
implementation revealed by using offscreen pixmaps.
when extending the driver interface. The card and accel structures are
merged into the ExaDriverRec, which is to be allocated using
exaDriverAlloc(). The driver structure also grows exa_major and
exa_minor, which drivers fill in and have checked by EXA
(double-checking that the driver really did check that the EXA version
was correct). Removes exaInitCard(), which is replaced by the driver
filling in the rec by hand, and the exaGetVersion() and related
EXA_*VERSION which are replaced by always using the XFree86 loadable
module versioning.
implementation that calls fb to get its work done. The purpose is to
have a trusted EXA driver for use with testing changes to the core of
EXA. However, fakexa has not received much testing yet, lacks offscreen
pixmaps support, and doesn't reliably provide garbage when EXA doesn't
get its syncing right. All of these should be fixed soon.
