Commit Graph

10 Commits

Author SHA1 Message Date
Keith Packard
9838b7032e Introduce a consistent coding style
This is strictly the application of the script 'x-indent-all.sh'
from util/modular. Compared to the patch that Daniel posted in
January, I've added a few indent flags:

	-bap
	-psl
	-T PrivatePtr
	-T pmWait
	-T _XFUNCPROTOBEGIN
	-T _XFUNCPROTOEND
	-T _X_EXPORT

The typedefs were needed to make the output of sdksyms.sh match the
previous output, otherwise, the code is formatted badly enough that
sdksyms.sh generates incorrect output.

The generated code was compared with the previous version and found to
be essentially identical -- "assert" line numbers and BUILD_TIME were
the only differences found.

The comparison was done with this script:

dir1=$1
dir2=$2

for dir in $dir1 $dir2; do
	(cd $dir && find . -name '*.o' | while read file; do
		dir=`dirname $file`
		base=`basename $file .o`
		dump=$dir/$base.dump
		objdump -d $file > $dump
	done)
done

find $dir1 -name '*.dump' | while read dump; do
	otherdump=`echo $dump | sed "s;$dir1;$dir2;"`
	diff -u $dump $otherdump
done

Signed-off-by: Keith Packard <keithp@keithp.com>
Acked-by: Daniel Stone <daniel@fooishbar.org>
Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2012-03-21 13:54:42 -07:00
Paulo Cesar Pereira de Andrade
49f77fff14 Rework symbol visibility for easier maintenance
Save in a few special cases, _X_EXPORT should not be used in C source
files. Instead, it should be used in headers, and the proper C source
include that header. Some special cases are symbols that need to be
shared between modules, but not expected to be used by external drivers,
and symbols that are accessible via LoaderSymbol/dlopen.

  This patch also adds conditionally some new sdk header files, depending
on extensions enabled. These files were added to match pattern for
other extensions/modules, that is, have the headers "deciding" symbol
visibility in the sdk. These headers are:
o Xext/panoramiXsrv.h, Xext/panoramiX.h
o fbpict.h (unconditionally)
o vidmodeproc.h
o mioverlay.h (unconditionally, used only by xaa)
o xfixes.h (unconditionally, symbols required by dri2)

  LoaderSymbol and similar functions now don't have different prototypes,
in loaderProcs.h and xf86Module.h, so that both headers can be included,
without the need of defining IN_LOADER.

  xf86NewInputDevice() device prototype readded to xf86Xinput.h, but
not exported (and with a comment about it).
2008-12-03 05:43:34 -02:00
Keith Packard
9ffc671939 Move matrix operations from X server to pixman 0.13.2
pixman 0.13.2 now holds all of the matrix operations. This leaves
the protocol conversion routines and some ABI stubs in place

Signed-off-by: Keith Packard <keithp@keithp.com>
2008-11-25 22:17:58 -08:00
Keith Packard
c4b9ab6bf5 Handle transform failure when computing shadow damage area.
PictureTransformBounds can fail, when this happens, damage the entire screen
so that the shadow gets repainted correctly.
2008-11-24 13:24:41 -08:00
Keith Packard
fa6a1df209 Avoid overflow in PictureTransformPoint. Fix PictureTransformIsIdentity.
PictureTransformPoint computes homogeneous coordinates internally, but fails
to handle intermediate values larger than 16.16. Use 64 bit intermediate
values while computing the final result at 16.16 and only complain if that
result is too large.

PictureTransformIsIdentity was completely wrong -- it was not checking for
identity transforms at all.
2008-11-24 13:24:40 -08:00
Keith Packard
49db14e4ac Handle RandR transform matrices in floating point.
RandR matrix computations lose too much precision in fixed point;
computations using the inverted matrix can be as much as 10 pixels off.
Convert them to double precision values and pass those around. These API
changes are fairly heavyweight; the official Render interface remains fixed
point, so the fixed point matrix comes along for the ride everywhere.
2008-11-24 13:24:40 -08:00
Keith Packard
97ab0c6eff When converting from double to fixed, round carefully.
This reduces the matrix representation error after inverting a
transformation matrix (although it doesn't eliminate it entirely).

Perhaps we should extend Render to include 64-bit floating point transforms...
2008-11-24 13:24:39 -08:00
Keith Packard
160252d94f Add matrix inversion function (uses doubles)
The obvious matrix inversion function, coded using doubles to avoid fiddling
with fixed point precision adventures.
2008-11-24 13:24:38 -08:00
Keith Packard
ff9d1cd843 Add funcs to convert between protocol and pixman matrices 2008-11-24 13:24:36 -08:00
Keith Packard
f547650328 Export a bunch of matrix operations from render.
The render extension uses many matrix operations internally, this change
exposes those functions to other parts of the server, drivers and
extensions. The change is motivated by the 'transform' additions to the
RandR extension but will likely be useful elsewhere.
2008-11-24 13:24:36 -08:00