Glamor has a mode where pixmaps will be constructed from numerous
small FBOs. This allows testing of the tiled pixmap code without
needing to create huge pixmaps.
However, the render glyph code assumed that it could create a pixmap
large enough for the glyph atlas. Instead of attempting to fix that
(which would be disruptive and not helpful), I've added a new pixmap
creation usage, GLAMOR_CREATE_NO_LARGE which forces allocation of a
single large FBO.
Now that we have pixmaps with varying FBO sizes, I then went around
and fixed the few places using the global FBO max size and replaced
that with the per-pixmap FBO tiling sizes, which were already present
in each large pixmap.
Xephyr has been changed to pass GLAMOR_CREATE_NO_LARGE when it creates
the screen pixmap as it doesn't want to deal with tiling either.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
If the repeat direction only has one block, then we need to set the
dx/dy to cover all the extent. This commit also silence some compilation
warnings.
Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
If the source and destination are the same pixmap/fbo, and we
need to split the copy to small pieces. Then we do need to
consider the sequence of the small pieces when the copy area
has overlaps. This commit take the reverse/upsidedown into
the clipping function, thus it can generate correct sequence
and avoid corruption self copying.
Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
The simplest way to support large pixmap's self compositing
is to just clone a pixmap private data structure, and change
the fbo and box to point to the correct postions. Don't need
to copy a new box.
Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
This commit implement almost all the needed functions for
the large pixmap support. It's almost complete.
Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Now we start to enable glamor_composite on large pixmap.
We need to do a three layer clipping to split the dest/source/mask
to small pieces. This commit only support non-transformation and
repeat normal case.
Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Added infrastructure for largepixmap, this commit implemented:
1. Create/Destroy large pixmap.
2. Upload/Download large pixmap.
3. Implement basic repeat normal support.
3. tile/fill/copyarea large pixmap get supported.
The most complicated part glamor_composite still not implemented.
Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
