fdo-mirrors/xorg-xorgproto
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/xorg/proto/xorgproto.git synced 2025-12-20 04:40:10 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Clarify behavior of IncludeInferior and GraphicsExposures.

Browse source
This commit is contained in:
Søren Sandmann Pedersen 2009-07-10 21:34:12 -04:00
parent c4315b2a47
commit 2c5e931d5e
1 changed files with 8 additions and 20 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

28
renderproto.txt
View file

@ -365,11 +365,6 @@ pixels within a window geometry obscured by other windows).
axis. Tiles that in both an even numbered row and an even
numbered column are reflected in both axes.
When GraphicsExposures are selected in the destination picture, a region
containing at least the union of all destination pixel values affected by
data replaced as above is delivered after each compositing operation. If
the resulting region is empty, a NoExpose event is delivered instead.
To construct the source and mask operands, the computed pixels values are
transformed through a homogeneous matrix, filtered and then used in the
fundamental rendering operator described above. Each screen provides a list
@ -631,16 +626,15 @@ CreatePicture
Transformations, filters and repeat modes do not affect the clip
mask.
For ClipByChildren, destination - but not source - windows are
additionally clipped by all viewable InputOutput children.
When a window is used as a destination, the subwindow_mode
determines what happens to pixels obscured by inferior
windows. For ClipByChildren the window is clipped by inferiors
and siblings. For IncludeInferior, the window is clipped by
siblings, but not by inferiors.
For IncludeInferiors, neither source nor destination windows are
clipped by inferiors. This will result in including subwindow
contents in the source and drawing through subwindow boundaries of
the destination. The use of IncludeInferiors with a source or
destination window of one depth with mapped inferiors of differing
depth is not illegal, but the semantics are undefined by this
extension.
When a window is used as source or mask, the subwindow_mode is
ignored. Pixels that are obscured by other windows, whether
siblings or inferiors, have undefined contents.
The graphics-exposures flag is ignored. GraphicsExposure events are
never generated by this extension.
@ -778,12 +772,6 @@ Composite
If mask is None, it is replaced by a constant alpha value of 1.
When dst has graphics-exposures true, a region covering all dst
pixels affected by substitutions performed on src or mask pixels
outside their respective geometries is computed. If that region is
empty, a NoExpose event is sent. Otherwise, a sequence of
GraphicsExpose events are sent covering that region.
FillRectangles
op: PICTOP