On Tuesday 14 December 2010 14:44:09 Søren Sandmann wrote:
> From: Brad Smith
>
> Bug 29331.
Why was this posted? It was already commited 4 months ago.
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From: Søren Sandmann Pedersen
This test program tries to use as many rarely-used features as
possible, including alpha maps, accessor functions, oddly-sized
images, strange transformations, conical gradients, etc.
The hope is to provoke crashes or irregular behavior in pixman.
---
test/Makefile
From: Søren Sandmann Pedersen
That way it can be used with palettes that are not statically
allocated, without causing valgrind issues.
---
test/utils.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/test/utils.c b/test/utils.c
index 4701bf6..cde9c62 100644
--- a/test/
From: Søren Sandmann Pedersen
That way we can detect if someone attempts to allocate a negative size
and abort instead of just returning NULL and segfaulting later.
---
test/utils.c |7 +--
test/utils.h |2 +-
2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/test/utils.
From: Søren Sandmann Pedersen
---
test/blitters-test.c | 57 +
test/utils.c | 54 +++
test/utils.h |3 ++
3 files changed, 59 insertions(+), 55 deletions(-)
diff --git a/test/blit
From: Søren Sandmann Pedersen
Test the gradients with various transformations, and test cases where
the gradients are specified with two identical points.
---
test/Makefile.am |5 ++-
test/gradient-crash-test.c | 124 +--
2 files changed, 87
From: Søren Sandmann Pedersen
Also move the ARRAY_LENGTH macro into utils.h so it can be used elsewhere.
---
test/composite.c | 56 +
test/utils.h |2 +
2 files changed, 28 insertions(+), 30 deletions(-)
diff --git a/test/composite.c
From: Søren Sandmann Pedersen
This function enables floating point traps if possible.
---
configure.ac |8
test/utils.c | 26 ++
test/utils.h |3 +++
3 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/configure.ac b/configure.ac
index 147e1
Sorry about the spam I just sent with a jumble of old and new
patches. Hopefully this time it will work better.
Here is a set of patches that contain some updates to the test
suite. Specifically,
- gradient-crash-test is extended to test more scenarios
- floating point exceptions are enabled in
From: Søren Sandmann Pedersen
If the homogeneous coordinate is 0, just set the coordinates to 0.
---
pixman/pixman-bits-image.c | 16
1 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/pixman/pixman-bits-image.c b/pixman/pixman-bits-image.c
index 95710b4..36ea0af
From: Søren Sandmann Pedersen
The rule is that the region passed in must be initialized and that the
region returned will still be valid. Ie., the lifecycle is the
responsibility of the caller, regardless of what the function returns.
Previously, composite_region32() would finalize the region an
From: Søren Sandmann Pedersen
This function enables floating point traps if possible.
---
configure.ac |8
test/utils.c | 26 ++
test/utils.h |3 +++
3 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/configure.ac b/configure.ac
index 147e1
From: Søren Sandmann Pedersen
Also move the ARRAY_LENGTH macro into utils.h so it can be used elsewhere.
---
test/composite.c | 56 +
test/utils.h |2 +
2 files changed, 28 insertions(+), 30 deletions(-)
diff --git a/test/composite.c
From: Søren Sandmann Pedersen
Otherwise, accessor functions won't work.
---
pixman/pixman-access.c | 10 +-
1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/pixman/pixman-access.c b/pixman/pixman-access.c
index 56de711..f1ce0ba 100644
--- a/pixman/pixman-access.c
+++ b/pi
From: Søren Sandmann Pedersen
This tests what happens if you attempt to make an image with an alpha
map that has the image as its alpha map. This results in an infinite
loop in _pixman_image_validate(), so the test sets up a SIGALRM to
exit if it runs for more than five seconds.
---
configure.ac
Here is a set of patches that contain some updates to the test
suite. Specifically,
- gradient-crash-test is extended to test more scenarios
- floating point exceptions are enabled in some cases
- The argument to fence_malloc() becomes a signed integer, and it will
abort() if someone tries to
From: Søren Sandmann Pedersen
If someone tries to set an alpha map that itself has an alpha map,
simply return. Also, if someone tries to add an alpha map to an image
that is being _used_ as an alpha map, simply return.
This ensures that an alpha map can never have an alpha map.
---
pixman/pixm
From: Brad Smith
Bug 29331.
---
pixman/pixman-cpu.c | 25 -
1 files changed, 24 insertions(+), 1 deletions(-)
diff --git a/pixman/pixman-cpu.c b/pixman/pixman-cpu.c
index e96b140..1b31885 100644
--- a/pixman/pixman-cpu.c
+++ b/pixman/pixman-cpu.c
@@ -61,6 +61,29 @@ pix
On Thursday 04 November 2010 03:10:38 Siarhei Siamashka wrote:
> On Wednesday 29 September 2010 15:40:33 Søren Sandmann wrote:
> > This was supposedly an optimization, but it has pathological cases
> > where it definitely isn't. For example it has terrible memory access
> > patterns when called wit
On Tuesday 14 December 2010 18:32:04 Siarhei Siamashka wrote:
Well, appears that some updates may be useful/necessary.
> * Because of the software prefetch, skipping read of the destination image
> pixels does not bring much improvement, moreover there is just no
> improvement at all on the newes
Hello,
After checking pixman sse2 code for over__ compositing operation
recently and having a look at the code responsible for handling fully
transparent and fully opaque special cases, I decided to re-evaluate the
use of the same trick for ARM NEON.
Actually it was proposed by Soeren a y
Mike McCormack writes:
> Pixman already uses the SIGILL mechanism elsewhere in the same file.
FWIW, the SIGILL mechanism for PowerPC is only used if the operating
system is neither OS X, OpenBSD, or Linux.
It used to be used on Linux, but it caused some kind of a infinite
loop in the build sys
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