Motivation: gross code simplification, also no bitset lookups at draw time.
SkPDFFont owns its glyph useage bitset.
SkPDFSubstituteMap goes away.
SkPDFObject interface is simplified.
SkPDFDocument tracks font usage (as hash set), not glyph usage.
SkPDFFont gets a simpler constructor.
SkPDFFont has first and last glyph set in constructor, not adjusted later.
SkPDFFont implementations are simplified.
SkPDFGlyphSet is replaced with simple SkBitSet.
SkPDFFont sizes its SkBitSets based on glyph count.
SkPDFGlyphSetMap goes away.
SkBitSet is now non-copyable.
SkBitSet now how utility methods to match old SkPDFGlyphSet.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2253283004
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Win-MSVC-GCE-CPU-AVX2-x86_64-Release-GDI-Trybot,Test-Win-MSVC-GCE-CPU-AVX2-x86_64-Debug-GDI-Trybot
Review-Url: https://codereview.chromium.org/2253283004
In rare cases, floating point error causes the tesselator to add the
same Vertex to more than one Poly on the same side. This was not a big
problem when we were allocating new vertices when constructing Polys,
but after https://codereview.chromium.org/2029243002 it causes more serious
issues, since each Edge can only belong to two Polys, and violating this
condition messes up the linked list of Edges used for left & right Polys
and the associated estimated vertex count.
The fix is to simply let the first Poly win, and skip that vertex for
subsequent Polys. Since this only occurs in cases where vertices are very
close to each other, it should have little visual effect.
This is also exercised by Nebraska-StateSeal.svg.
BUG=skia:5636
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2259493002
Review-Url: https://codereview.chromium.org/2259493002
Keep isOpaque as a convenience method -- many places really only need to
know that for optimization purposes (SrcOver -> Src, etc...).
In all the places where we pull data back out or convert to another
object and need to supply an SkImageInfo, we can avoid losing information
about premulness.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2250663002
Review-Url: https://codereview.chromium.org/2250663002
GrAppliedClip was about at its limit for how many "make" functions it
could have. Window rectangles would push it over the edge. This change
makes it so GrDrawTarget supplies the original draw bounds to the
constructor, and then GrClip adds the various required clipping
techniques.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2246113002
Review-Url: https://codereview.chromium.org/2246113002
Impl Overview
(1) Keep the device clip bounds up to date. This
requires minimal additional work in a few places
throughout canvas.
(2) Keep track of if the ctm isScaleTranslate. Yes,
there's a function that does this, but it's slow
to call.
(3) Perform the src->device transform in quick reject,
then check intersection/nan.
Other Notes:
(1) NaN and intersection checks are performed
simultaneously.
(2) We no longer quick reject infinity.
(3) Affine and perspective are both handled in the slow
case.
(4) SkRasterClip::isEmpty() is handled by the intersection
check.
Performance on Nexus 6P:
93.2ms -> 59.8ms
Overall Android Jank Tests Performance Impact:
Should gain us a ms or two on some tests.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2225393002
Committed: https://skia.googlesource.com/skia/+/d22a817ff57986407facd16af36320fc86ce02da
Review-Url: https://codereview.chromium.org/2225393002
Impl Overview
(1) Keep the device clip bounds up to date. This
requires minimal additional work in a few places
throughout canvas.
(2) Keep track of if the ctm isScaleTranslate. Yes,
there's a function that does this, but it's slow
to call.
(3) Perform the src->device transform in quick reject,
then check intersection/nan.
Other Notes:
(1) NaN and intersection checks are performed
simultaneously.
(2) We no longer quick reject infinity.
(3) Affine and perspective are both handled in the slow
case.
(4) SkRasterClip::isEmpty() is handled by the intersection
check.
Performance on Nexus 6P:
93.2ms -> 59.8ms
Overall Android Jank Tests Performance Impact:
Should gain us a ms or two on some tests.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2225393002
Review-Url: https://codereview.chromium.org/2225393002
Reason for revert:
Erg - dumb bug
Original issue's description:
> Create blurred RRect mask on GPU (rather than uploading it)
>
> This CL doesn't try to resolve any of the larger issues. It just moves the computation of the blurred RRect to the gpu and sets up to start using vertex attributes for a nine patch draw (i.e., returning the texture coordinates)
>
> All blurred rrects using the "analytic" path will change slightly with this CL.
>
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2222083004
>
> Committed: https://skia.googlesource.com/skia/+/75ccdc77a70ec2083141bf9ba98eb2f01ece2479TBR=bsalomon@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review-Url: https://codereview.chromium.org/2236493002
This CL doesn't try to resolve any of the larger issues. It just moves the computation of the blurred RRect to the gpu and sets up to start using vertex attributes for a nine patch draw (i.e., returning the texture coordinates)
All blurred rrects using the "analytic" path will change slightly with this CL.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2222083004
Review-Url: https://codereview.chromium.org/2222083004
SkPDFFont:
- SkPDFType1Font::populate() encode advances correctly.
- break out logically independent code into new files:
* SkPDFConvertType1FontStream
* SkPDFMakeToUnicodeCmap
SkPDFFont.cpp is now 380 lines smaller.
Expose `SkPDFAppendCmapSections()` for testing.
SkPDFFontImpl.h
- Fold into SkPDFFont.
SkPDFConvertType1FontStream:
- Now assume given a SkStreamAsset
SkPDFFont:
- AdvanceMetric now hidden in a anonymous namespace.
No public API changes.
TBR=reed@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2221163002
Review-Url: https://codereview.chromium.org/2221163002
About 9x faster than Murmur3 for long inputs.
Most of this is a mechanical change from SkChecksum::Murmur3(...) to SkOpts::hash(...).
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2208903002
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot;master.client.skia.compile:Build-Ubuntu-GCC-x86_64-Release-CMake-Trybot,Build-Mac-Clang-x86_64-Release-CMake-Trybot
Review-Url: https://codereview.chromium.org/2208903002
SkLiteRecorder, a new SkCanvas, fills out SkLiteDL, a new SkDrawable.
This SkDrawable is a display list similar to SkRecord and SkBigPicture / SkRecordedDrawable, but with a few new design points inspired by Android and slimming paint:
1) SkLiteDL is structured as one big contiguous array rather than the two layer structure of SkRecord. This trades away flexibility and large-op-count performance for better data locality for small to medium size pictures.
2) We keep a global freelist of SkLiteDLs, both reusing the SkLiteDL struct itself and its contiguous byte array. This keeps the expected number of mallocs per display list allocation <1 (really, ~0) for cyclical use cases.
These two together mean recording is faster. Measuring against the code we use at head, SkLiteRecorder trends about ~3x faster across various size pictures, matching speed at 0 draws and beating the special-case 1-draw pictures we have today. (I.e. we won't need those special case implementations anymore, because they're slower than this new generic code.) This new strategy records 10 drawRects() in about the same time the old strategy took for 2.
This strategy stays the winner until at least 500 drawRect()s on my laptop, where I stopped checking.
A simpler alternative to freelisting is also possible (but not implemented here), where we allow the client to manually reset() an SkLiteDL for reuse when its refcnt is 1. That's essentially what we're doing with the freelist, except tracking what's available for reuse globally instead of making the client do it.
This code is not fully capable yet, but most of the key design points are there. The internal structure of SkLiteDL is the area I expect to be most volatile (anything involving Op), but its interface and the whole of SkLiteRecorder ought to be just about done.
You can run nanobench --match picture_overhead as a demo. Everything it exercises is fully fleshed out, so what it tests is an apples-to-apples comparison as far as recording costs go. I have not yet compared playback performance.
It should be simple to wrap this into an SkPicture subclass if we want.
I won't start proposing we replace anything old with anything new quite yet until I have more ducks in a row, but this does look pretty promising (similar to the SkRecord over old SkPicture change a couple years ago) and I'd like to land, experiment, iterate, especially with an eye toward Android.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2213333002
Review-Url: https://codereview.chromium.org/2213333002
