- Based on driver pixmaps with some changes (completely transparent to driver).
- It helps with the problem of known software fallbacks, such as trapezoids.
- exaDoMigration is now called for all cases that provide a do_migration hook.
- exa_migration.c is renamed to exa_migration_classic.c
Since commit f07f18231a ('EXA: Allow using
exaCompositeRects also when we can't use a mask in exaGlyphs.') we were
checking the wrong set of coordinates in the buffer where glyphs to be rendered
are accumulated when no mask is used in exaGlyphs.
This fixes occasional glyph corruption which can be corrected with redraws, in
particular with Qt4.
Thanks to Maarten Maathuis for asking the right question: 'where do we protect
against evicting glyphs that are still needed?'
Signed-off-by: Michel Dänzer <daenzer@vmware.com>
This should give the full benefits of the glyph cache even when we can't use a
mask.
This also means we no longer need to scan the glyphs to see if they overlap,
we can just use a mask or not as the client asks.
Signed-off-by: Michel Dänzer <daenzer@vmware.com>
We can get a case with gnome-terminal + links, where we get two arrays
of glyphs all with 0 width and 0 heights in them. If this happens
we manage to get to this case without any buffer setup and segfault.
When possible, use UploadToScreen() rather than CompositePicture()
to upload glyphs onto the glyph cache pixmap. This avoids allocating
offscreen memory for each glyph making management of offscreen
areas much more efficient.
Add a function to composite multiple independent rectangles
from the same source to the same destination in a single
operation: this is useful for building a glyph mask.
Add back exaGlyphs(); the new version copies the glyph images
onto a single large glyph pixmap and draws from their to the
destination surface. This reduces the management of small
offscreen areas and will allow us to avoid texture unit setup
between each glyph.
