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We were not clipping the dirty region correctly, Fix this.
Also actually do what the comment in the function says: If there are more than
an ad-hoc number of rectangles to read back, then revert to the default
saa_check_poly_fill_rect function that reads back the whole damage region.
v2: Fix commit log message.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
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The saa_check_copy_window could dirty regions that were never touched, since
we were using the X server provided damage region rather than the more
detailed region actually copied. This would have been OK if we had first done
a read-back of the region to be dirtied, but since we want to avoid that,
instead compute the detailed destination region and use that for dirtying.
This fixes rendering glitches seen with motif applications.
v2: Fix whitespace error.
v3: Move dirty region computation.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
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This reverts commit 88c487cb19aaf2882d582f7f887a52935ef8d92e.
While the commit made the rendering artefacts less frequent, they didn't
disappear completely and are likely caused by something else, so revert this
commit.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Acked-by: Sinclair Yeh <syeh@vmware.com>
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It causes rendering artefacts with some motif applications due to
damage area confusion. Until that is sorted out, temporarily disable the
optimization.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
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This significantly improves performance of shaped windows on top of 3D
contents
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
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Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
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The damage region may be much larger than the actual area
filled, so make sure we read back any hw contents in the damage region
since we use it to mark sw dirty.
Revisit this in the future since it may increase readbacks in an
undesired way. There are workarounds.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
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Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
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This imports the vmwgfx driver, based on the Gallium3D Xorg state tracker,
as well as the saa library. A "Shadow Acceleration Architecture", which is
optimized for the case where transfers between system (shadow) and hw memory
is very costly.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
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