SkPMFloat(0) and SkPMFloat(0,0,0,0) end up with the same value,
but the first goes through math to get there. The second is a lot more
transparent to the compiler, and should compile all the way down to
just `xorps xmmN,xmmN` or even be optimized away.
Didn't measure any additional benefit from hoisting the zero outside
the loop and writing `SkPMFloat color = zero;`.
Perf win is <2%.
BUG=skia:
Review URL: https://codereview.chromium.org/1314763007
The CPU path for lighting image filters was not adjusting the filter
matrix to accommodate srcOffset, resulting in incorrectly-positioned
lights. (The GPU path was doing this correctly.)
This change adds a new test case to the imagefiltersclipped GM,
so it will need new baselines.
BUG=skia:
Review URL: https://codereview.chromium.org/1310053004
We used to split the NEON code this way, and just had one path for SSE.
It's unclear to me testing locally if there's any major win here, but there's at least a small one.
No pixel diffs or even any math changes, just folding constants through.
BUG=skia:4117
Review URL: https://codereview.chromium.org/1304373006
Re-land; layout tests are suppressed and gm differences are understood.
A merge conflict prevented a automatic reland.
If the endcap is not butt, draw the endcaps even when the line
has zero length.
If the dash length is zero, generate a zero length line segment.
Treat a move followed by a close as a move followed by a zero-length
line.
TBR=reed@google.com
BUG=422974
Review URL: https://codereview.chromium.org/1314213002
Unfortunately, immintrin.h (which is also included by SkTypes)
includes xmmintrin.h which includes mm_malloc.h which includes
stdlib.h for malloc even though, from the implementation, it is
difficult to see why.
Fortunately, arm_neon.h does not seem to be involved in such
shenanigans, so building for Android will keep things sane.
TBR=reed@google.com
Doesn't change Skia API, just moves an include.
Review URL: https://codereview.chromium.org/1313203003
The motivation for this was to remove SK_OFFSETOF from SkTypes, but
this CL is mostly about cleaning up our use of offsetof generally.
SK_OFFSETOF is removed to SkTypes and added to the two places it is
actually used (for the non standard behavior of finding the offset of
fields in types which are not standard layout).
Older versions of gcc required POD for offsetof to be used without
warning. Newer versions require the more relaxed standard layout.
Now that we no longer build on older versions of gcc, remove the
old warning suppressions.
PODMatrix is renamed to AggregateMatrix. SkMatrix is already POD
(trivial and standard layout). The PODMatrix name implies that the
POD-ness is needed for the offsetof, but it is actually the aggregate
attribute which is needed for compile time constant initialization.
This makes it more obvious that this can be revisited after we can
rely on constexpr constructors.
This also adds skstd::declval since this allows removal of existing
awkward code which casts a constant to a pointer to find the size of
a field.
TBR=reed@google.com
No API change, only removes unused macro.
Review URL: https://codereview.chromium.org/1309523003
This also disables warnings in giflib and fixes
compile warnings in icu, in order to fix a skia
bug.
BUG=skia:4220
Review URL: https://codereview.chromium.org/1314633002
Reason for revert:
More GMs changed than I expected. Will probably affect layout tests as well; reverting until I can verify that the changes are correct.
Original issue's description:
> experiment with zero-length round capped line segments
>
> If the endcap is not butt, draw the endcaps even when the line
> has zero length.
>
> If the dash length is zero, generate a zero length line segment.
>
> Treat a move followed by a close as a move followed by a zero-length
> line.
>
> R=reed@google.com,schenney@google.com
> BUG=422974
>
> Committed: https://skia.googlesource.com/skia/+/dd3c165828fffb369d0f4b13b48381169a0249a9TBR=reed@google.com,schenney@google.com,schenney@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=422974
Review URL: https://codereview.chromium.org/1304163008
If the endcap is not butt, draw the endcaps even when the line
has zero length.
If the dash length is zero, generate a zero length line segment.
Treat a move followed by a close as a move followed by a zero-length
line.
R=reed@google.com,schenney@google.com
BUG=422974
Review URL: https://codereview.chromium.org/1309753002
SkXfermodeImageFilter::filterImageGPU is the only call site that does anything fancy when getInputResultsGPU fails. It seems like we can just return like everyone else (for uniformity).
Review URL: https://codereview.chromium.org/1302033004
Minimize the number of stencil writes by using GL_KEEP whenever possible.
This can positively affect the HW performance of the stencil test.
BUG=skia:3952
Review URL: https://codereview.chromium.org/1288923005
Follow on to https://codereview.chromium.org/1299243002/
Clip using a geometric solution if the algebraic solution
fails in Y as well as in X.
If the root finder discovers real roots that are sufficiently
far apart, the root in the range of 0..1 can contain so much
error that it is computed to be slightly smaller than 0 or
larger than 1.
In this case, binary search the mono curve for the actual
answer.
R=reed@google.com
Review URL: https://codereview.chromium.org/1303873003
Reason for revert:
This causes a syntax error.
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_compile_dbg_ng/builds/87819/steps/compile%20%28with%20patch%29/logs/stdio
Original issue's description:
> Implement canComputeFastBounds() for image filters.
>
> Image filters have never implemented this check, which means that
> filters which affect transparent black falsely claim they can compute
> their bounds.
>
> Implemented an affectsTransparentBlack() virtual for image
> filters, and a similar helper function for color filters.
>
> This will affect the following GMs: imagefiltersscaled
> (lighting, perlin noise now filter to clip),
> colorfilterimagefilter (new test case), imagefiltersclipped
> (perlin noise now filters to clip).
>
> Note: I de-inlined SkPaint::canComputeFastBounds() to avoid adding
> a dependency from SkPaint.h to SkImageFilter.h.h. Skia benches show
> no impact from this change, but will watch the perf bots carefully.
>
> BUG=4212
>
> Committed: https://skia.googlesource.com/skia/+/915881fe743f9a789037695f543bc6ea189cd0cbTBR=reed@google.com,senorblanco@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=4212
Review URL: https://codereview.chromium.org/1300403003
Please review concept; I'm OK not to check this in.
If the root finder fails, subdivide the curve and try again.
This is complicated by the reversed nature of the curves;
maybe it can be simpler, but how to do that escapes me.
R=reed@google.com
BUG=514246
Review URL: https://codereview.chromium.org/1299243002
