After removing all unused API from SkReader32, it only had a handful
of functions, and it was (rightly) only used by SkReadBuffer. Remove
the temptation to use it by just folding it into SkReadBuffer.
SkWriter32 had some unnecessary functions as well (only used in unit
tests), so those are gone. There is still a strange relationship:
SkWriteBuffer is just an interface - SkReadBuffer is actually the
complement of SkBinaryWriteBuffer/SkWriter32. Those two classes produce
data in the exact same format, but with slightly different interfaces.
(The choice about which one is used is mostly about high-level
serialization vs. low-level helpers).
Change-Id: I1e823755febecd2e053ea732b21295d8f4d9d832
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/295557
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Use SkIDChangeListener and update GrBitmapTextureMaker to add listener
to key to deregister if texture is purged before genID changes.
Add a common listener list implementation and replace existing lists.
Change-Id: Ib0c78241eaf59b59b892d8b004b2bb095140bc6d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/274549
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Generalizes the system used on SkPathRef where a GrTexture's key
destructor signals that a listener on the image can be removed via
the unique key custom data.
Removes texturesAreCacheable() from SkImageGenerator. This was used to
prevent unbounded growth in a narrow situation related to
GrBackendTextureImageGenerator.
Change-Id: I3c605da099acfac94751e793331e356a0979d359
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/274038
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Floating-point errors in the calculations in arcTo can cause the final
point to differ significantly enough from the supplied target point that
a subsequent 'close' operation inserts a lineTo to close the curve. This
can result in bad miters on curves with thick outlines.
The fix is to ensure that the final point used is *exactly* the point
that was supplied.
The fix is now staged behind a flag so that we can fix Chromium test
failures before turning it on.
Bug: chromium:1001768
Change-Id: I82d872f2ae39b5486f7d810a61ba00eeda1b3a62
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/270503
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
This reverts commit 31143100ee.
Reason for revert: need to guard this, to stage changes to test images
Original change's description:
> Ensure arcTo (SVG) ends at the targeted point
>
> Floating-point errors in the calculations in arcTo can cause the final
> point to differ significantly enough from the supplied target point that
> a subsequent 'close' operation inserts a lineTo to close the curve. This
> can result in bad miters on curves with thick outlines.
>
> The fix is to ensure that the final point used is *exactly* the point
> that was supplied.
>
> Bug: chromium:1001768
> Change-Id: I75c740ab25fb05153bc852a204be957977674cd2
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/270000
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Mike Reed <reed@google.com>
TBR=reed@google.com,iapres@microsoft.com
Change-Id: If331924a4db83294769b28501bba875238a521bd
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:1001768
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/270356
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Floating-point errors in the calculations in arcTo can cause the final
point to differ significantly enough from the supplied target point that
a subsequent 'close' operation inserts a lineTo to close the curve. This
can result in bad miters on curves with thick outlines.
The fix is to ensure that the final point used is *exactly* the point
that was supplied.
Bug: chromium:1001768
Change-Id: I75c740ab25fb05153bc852a204be957977674cd2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/270000
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Use std::max and std::min instead
Change-Id: Icf3796609e5cb511687fb50bd31229ae4b6b9b39
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/268841
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
- this adds new (default) parameter to control clipping when transforming
rects and paths
Bug: skia:9698
Change-Id: I4cfb36b60bd6bbfcdac0226e374dbc27d5284952
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/259431
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
This reverts commit 3e7af41224.
Change-Id: Id4f66b3956f4bdbe690db20fc478b7365ee89717
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/256676
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Auto-Submit: Mike Reed <reed@google.com>
This reverts commit 1792b19485.
Reason for revert: need to update legacy_convexity, still used by google3
Original change's description:
> Revert "Revert "Use flat version of path-direction enum""
>
> This reverts commit 0dacc6b7d3.
>
> Change-Id: Ie103e9f36b07e4ee256a3688a4decf3a6dd74314
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/255832
> Auto-Submit: Mike Reed <reed@google.com>
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Mike Reed <reed@google.com>
TBR=reed@google.com
Change-Id: I0ecea0eb8a237298c6b908cc4bfd1cacdfc5b900
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/255976
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
This reverts commit 0dacc6b7d3.
Change-Id: Ie103e9f36b07e4ee256a3688a4decf3a6dd74314
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/255832
Auto-Submit: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
This reverts commit e0fbe94351.
Reason for revert: need to add guard flag to flutter
Original change's description:
> Use flat version of path-direction enum
>
> Bug: skia:9663
> Change-Id: I00077d9f2b14b3e983e6a46ef6f560cabdb1678d
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/242557
> Commit-Queue: Mike Reed <reed@google.com>
> Reviewed-by: Florin Malita <fmalita@chromium.org>
TBR=fmalita@chromium.org,reed@google.com
Change-Id: If47173d9b203b2d3a175af290a15d986accb4703
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:9663
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/255831
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
As part of this (clean up), also removed support for serialized-paths
older than version-4, which was introduced Feb 2018.
Change-Id: I2dc74a52bb8bdd7ea0cb2d8a78b644ca783eb31f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/239102
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Mike Reed <reed@google.com>
These are numerically unstable. We've had various complex solutions in
the past (fall back to doubles, additional checks like this one), but
this solution is safer and simpler.
Change-Id: Ibe57a155a2aa604e20960f415b9dc3546ae859a9
Bug: chromium:993330
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/235861
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
This does not appear to be used externally, and only internally in 3
sites in GPU, which we can handle explicitly.
For now you can still pass bools to Iter::next() but they are ignored.
After this lands, I will update the callers to remove those.
FWIW: none of our other tests or gms seem to notice this change...
Bug: skia:9339
Change-Id: If40077b1ebb3d47cfce0ec43996ff272318e4a62
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/235104
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Mike Reed <reed@google.com>
This gm doesn't seem to have ever drawn anything onto the actual canvas,
just leaving a white background. The content is derived from a fuzzer
generated path which caused an assert in the software rasterization of
the path. Since the point is to ensure that this path does not cause an
assertion when drawn, move to the path tests.
Change-Id: Ibff77763d8079386a9b4bfe9a437ffa16856b53b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/234663
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
Current strategy: everything from the top
Things to look at first are the manual changes:
- added tools/rewrite_includes.py
- removed -Idirectives from BUILD.gn
- various compile.sh simplifications
- tweak tools/embed_resources.py
- update gn/find_headers.py to write paths from the top
- update gn/gn_to_bp.py SkUserConfig.h layout
so that #include "include/config/SkUserConfig.h" always
gets the header we want.
No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
This effectively re-applies the logic from
https://codereview.chromium.org/298973004
The change to the unit test for 389050 is interesting.
The last convexity rewrite "fixed" that case by allowing
it to be detected as convex. In the process, it actually
broke the original bug, so that rendering of the HTML
failed. This CL causes us to give up and decide that the
path is concave, but we return to rendering correctly, so
that's a win.
The bug that initiated this (950508) is effectively the
exact same bug as 2235, which is why I haven't added a new
test case. The existing test case is much more concise than
the 100K data file needed for the new one.
Bugs: skia:2235 chromium:389050 chromium:950508
Change-Id: I0de65db8644f37e335c47e9d41c676b8e8b020fc
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209164
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
This was rebaselined and removed from Chrome long ago.
Planning to fix more bugs in the Convexicator, but want
to get this out of the way first.
Change-Id: I4f299d56a81be509a861d1e9c9f0e48a47170096
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209322
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
There are bugs in the other code path that will require more state,
and maintaining this special case in parallel is going to be tricky.
Change-Id: I0083b0aa2af16391504f0993e765faa0f5522502
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209163
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
- Transforming a path in place wasn't updating the gen ID of the path
- Transforming a path into another (uniquely held) path wasn't calling
gen ID change listeners.
Bug: skia:
Change-Id: I9e244725d9bd5776d203ce6b12698cee09d0b714
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/199003
Auto-Submit: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
This test used to assert/fail under ASAN because copyPath's
fLastMoveToIndex was garbage after the internal copy (in SkPath::transform).
Now the code sets it to the src's value.
Bug:883596
Change-Id: I3cba82fb63398bf4aa0abc9d3f2a0067d8ad9006
Reviewed-on: https://skia-review.googlesource.com/c/178931
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Remove SkPathPriv::IsConvex() if SK_LEGACY_PATH_CONVEXITY
is defined to fix the Google3 roll.
TBR=ethannicholas@google.com
Bug: skia:
Change-Id: I2d2177213ec43dd048f15685d0afe49fb07656fe
Reviewed-on: https://skia-review.googlesource.com/c/177680
Commit-Queue: Cary Clark <caryclark@google.com>
Auto-Submit: Cary Clark <caryclark@google.com>
Reviewed-by: Cary Clark <caryclark@google.com>
Chrome added a public method to validate SkPathRef,
but always called it when validating SkPath. We did too.
Remove the SkPathRef entry point, validate SkPathRef
when validating SkPath, and remove Skia's callers.
(Chrome has already been fixed.)
TBR=reed@google.comR=fmalita@chromium.org
Bug:913930
Change-Id: I0828b00b42cc1f031b4216ddeace50f80aa21e62
Reviewed-on: https://skia-review.googlesource.com/c/177065
Commit-Queue: Cary Clark <caryclark@skia.org>
Auto-Submit: Cary Clark <caryclark@skia.org>
Reviewed-by: Florin Malita <fmalita@chromium.org>
This separates the existing convexity logic into
two passes. The first pass detects concavity by
counting the changes in direction.
The second pass computes the cross product to
see that all angles bend in the same direction, and
computes the dot product to see if the angle
doubles back on itself.
The second pass treats axis-aligned vectors
separately, and computes the dot and cross products
by comparing point values; it does not use arithmetic
to determine convexity, so it works with all finite
values.
A compile time switch enables returning concave
for co-linear diagonal points:
If successive points are not axis-aligned, and
those points are co-linear along a diagonal;
the path is treated as concave. This is conservative
but avoids paths that change convexity when the
are translated or scaled, since transforming the
path may cause the midpoint to shift to either
side of a line formed by the endpoints.
The compile time switch is set so that co-linear
diagonal points do not affect convexity. Note that
this permits shapes formerly considered concave, such
as stroked lines with round caps, to become convex;
this accounts for many of the GM differences.
A path may double back on itself and be convex;
for instance, a path containing a single line.
Path may have multiple initial moveTo verbs, or
trailing moveTo verbs, and still evaluate as convex.
A separate entry point, SkPathPriv::IsConvex()
allows passing an array of points instead of a path.
A legacy define has been checked into Chrome to
use the old code until layout tests have been
rebaselined.
R=reed@google.com,bsalomon@google.com
Bug:899689
Change-Id: I392bbe04836ffb19666ad92ab2a2404c56543019
Reviewed-on: https://skia-review.googlesource.com/c/173427
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Cary Clark <caryclark@google.com>
Commit-Queue: Cary Clark <caryclark@skia.org>
Bug: skia:
Change-Id: I11ff57dca2c48519bc3a23e36da01bf40d1b329c
Reviewed-on: https://skia-review.googlesource.com/c/174221
Commit-Queue: Mike Reed <reed@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Auto-Submit: Mike Reed <reed@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
In theory, a convex shape is still convex if transformed by an affine
matrix. However, SkPath segments are specified using floats, and attributes
like collinearity can break under some transforms due to finite precision.
Computing convexity is non-trivial, so there is value in SkPath caching this
calculation. Convexity is useful, as both the CPU and GPU backends can draw
convex shapes faster than non-convex.
To balance these two (fragile float math and value of caching convexity),
this CL invalidates this cached state if the transform could change convexity.
In the general case, it is assumed that convexity could change. Special cases
where it is safe to keep the cached state after transform are:
- identity transform
- scale/translate transform if the path is known to be axis-aligned
All other combinations invalidate the cached state, forcing it to be
recomputed.
"axis-aligned" means the segments in the path are all axis-aligned, horizontal
or vertical (e.g. a rect or rrect)
Bug: 899689
Change-Id: I1381273eaff61d6b7134ae94b4f251c69991081a
Reviewed-on: https://skia-review.googlesource.com/c/173226
Commit-Queue: Ravi Mistry <rmistry@google.com>
Reviewed-by: Cary Clark <caryclark@google.com>
This reverts commit 26d8d77aae.
Reason for revert: speculative, in case this is blocking the chrome roll
Original change's description:
> don't trust convexity with affine transforms
>
> In theory, a convex shape transformed by an affine matrix should still
> be convex. However, due to numerical nastiness of floats, when we try
> to determine if something is convex, we can get different answers pre
> and post a transformation (think of two line segments nearly colinear).
>
> Convex paths take a faster scan converter, but it is only well behaved
> if the path is, in fact, convex. Thus we have to be conservative about
> which paths we mark as convex.
>
> This bug found a case where a "convex" path, after going through a transform,
> became (according to our measure) non-convex. The bug was that we *thought*
> that once convex always convex, but in reality it was not. The fix (hack) is
> to notice when we transform by an affine matrix (we're still assuming/hoping
> that scaling and translate keep things convex (1)...) and mark the convexity
> as "unknown", forcing us to re-compute it.
>
> This will slow down these paths, since it costs something to compute convexity.
> Hopefully non-scale-translate transforms are rare, so we won't notice the
> speed loss too much.
>
> (1) This is not proven. If we find scaling/translation to break our notion of
> convexity, we'll need to get more aggressive/clever to find a fix.
>
>
> Bug: 899689
> Change-Id: I5921eca247428bf89380bc2395fe373fa70deb1d
> Reviewed-on: https://skia-review.googlesource.com/c/173080
> Commit-Queue: Mike Reed <reed@google.com>
> Reviewed-by: Cary Clark <caryclark@google.com>
> Reviewed-by: Jim Van Verth <jvanverth@google.com>
TBR=mtklein@google.com,jvanverth@google.com,caryclark@google.com,reed@google.com,caryclark@skia.org
Change-Id: I5d846798f2c34c6576591a3c3125cfdc3c72dbdc
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 899689
Reviewed-on: https://skia-review.googlesource.com/c/173162
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
In theory, a convex shape transformed by an affine matrix should still
be convex. However, due to numerical nastiness of floats, when we try
to determine if something is convex, we can get different answers pre
and post a transformation (think of two line segments nearly colinear).
Convex paths take a faster scan converter, but it is only well behaved
if the path is, in fact, convex. Thus we have to be conservative about
which paths we mark as convex.
This bug found a case where a "convex" path, after going through a transform,
became (according to our measure) non-convex. The bug was that we *thought*
that once convex always convex, but in reality it was not. The fix (hack) is
to notice when we transform by an affine matrix (we're still assuming/hoping
that scaling and translate keep things convex (1)...) and mark the convexity
as "unknown", forcing us to re-compute it.
This will slow down these paths, since it costs something to compute convexity.
Hopefully non-scale-translate transforms are rare, so we won't notice the
speed loss too much.
(1) This is not proven. If we find scaling/translation to break our notion of
convexity, we'll need to get more aggressive/clever to find a fix.
Bug: 899689
Change-Id: I5921eca247428bf89380bc2395fe373fa70deb1d
Reviewed-on: https://skia-review.googlesource.com/c/173080
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Cary Clark <caryclark@google.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Spoiler alert... it doesn't.
Bug: oss-fuzz:10488
Change-Id: Ifafd92f40aed55ff14a5198ea7d79a20751e40aa
Reviewed-on: https://skia-review.googlesource.com/156661
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
