When triangles get too thin it's possible for FP round-off error to
actually give us the wrong winding direction, causing rendering
artifacts. This change also allows us to unblacklist ANGLE.
Bug: skia:7805
Bug: skia:7820
Change-Id: Ibaa0f033eba625d720e3a594c4515d8264cc413d
Reviewed-on: https://skia-review.googlesource.com/123262
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
When debugging DDL it is useful to just see which ops are being drawn instead of the entire reordering history.
Change-Id: I89708fecbd53c097b00e65b0da426bfb8046b0ee
Reviewed-on: https://skia-review.googlesource.com/122780
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Neat but unused.
Change-Id: I1b2d160df274b05cfb5582a5385085cc2db89f7d
Reviewed-on: https://skia-review.googlesource.com/121960
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
This was triggered by an exploit that started the first
edge well outside the final rectangle, causing the captured
to exceed the correct result.
Ivan observes that we really only want the first and third
corners to compute the bounds, so remove the tracking code
that looks for a valid range of points, and record the
corners instead.
R=robertphillips@google.com
Bug: 824145,skia:7792
Change-Id: If228573d0f05c7158dba8142c144d13834e691ec
Reviewed-on: https://skia-review.googlesource.com/122081
Commit-Queue: Cary Clark <caryclark@skia.org>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Auto-Submit: Cary Clark <caryclark@skia.org>
One of the path is rect bug fixes changed
the behavior of zero-length strokes which
showed up as a change in Gold.
The bug is if a rect is defined by a
series of colinear movetos, the bounds
did not work out if the rect started
and stopped in the middle of a side.
R=robertphillips@google.com
Bug: 824145,skia:7792
Change-Id: I226545efeda03dedd928eebc120d2508b428fef0
Reviewed-on: https://skia-review.googlesource.com/122002
Auto-Submit: Cary Clark <caryclark@skia.org>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Cary Clark <caryclark@skia.org>
Removed a test that appeared to go uncalled;
Ivan to the rescue, with a test case
proving that it is required.
R=robertphillips@google.com
Bug: 824145,skia:7792
Change-Id: I7df9688072bd36b7597673148e3fe5dbbf82f5a7
Reviewed-on: https://skia-review.googlesource.com/121883
Commit-Queue: Cary Clark <caryclark@skia.org>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Auto-Submit: Cary Clark <caryclark@skia.org>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Exposes that final close along a diagonal need not
include a close verb if the subsequent verb is move;
so we have to check for a diagonal then.
The later check for diagonal included a comment that
it may not be needed which does appear to be the case.
R=robertphillips@google.com
Bug: 824145,skia:7792
Change-Id: I17a9414e8b3e69b82c2eda28195696eae4e3d513
Reviewed-on: https://skia-review.googlesource.com/121801
Commit-Queue: Cary Clark <caryclark@skia.org>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Auto-Submit: Cary Clark <caryclark@skia.org>
Reviewed-by: Robert Phillips <robertphillips@google.com>
This one accumulates the othershoot when all four sides
have the same direction, and the final side when closed
should cause the overshoot to be ignored.
Docs-Preview: https://skia.org/?cl=121787
Bug: 824145,skia:7792
Change-Id: I71ea0fcdd0f03a4fcac224b57220c65c321112f6
Reviewed-on: https://skia-review.googlesource.com/121787
Commit-Queue: Cary Clark <caryclark@skia.org>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Auto-Submit: Cary Clark <caryclark@skia.org>
Reviewed-by: Robert Phillips <robertphillips@google.com>
This is bug number ten in the series, and is the
most interesting. It exploits that the code tracks
corners 0, 2, and 3 but not corner 1.
Changing the code to track all corners is the biggest
so far, and while it (hopefully) simplifies things,
the presence of new code may signify more bugs to come.
R=robertphillips@google.com
Bug: 824145,skia::7792
Change-Id: Ia18e4d80fbed06ae6d9c89dcb4c462c5610213cc
Reviewed-on: https://skia-review.googlesource.com/121487
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Cary Clark <caryclark@google.com>
Otherwise the cubic math is too unstable.
Bug: skia:
Change-Id: I2c8d8d9abcae517d42dd3eddb5bf455c7c7487dd
Reviewed-on: https://skia-review.googlesource.com/121709
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Change-Id: I30e7ac2ad37f666e3fafe94a3f52a764e1e2e652
Reviewed-on: https://skia-review.googlesource.com/88040
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Stephen White <senorblanco@chromium.org>
Reviewed-by: Robert Phillips <robertphillips@google.com>
This variation exploits a sequence which uses a zero
length line to note that lines have been recorded, but
no rectangle edge has been encountered.
R=robertphillips@google.com
Docs-Preview: https://skia.org/?cl=121282
Bug: 824145,skia:7792
Change-Id: I652e9482b2867c3d7da30d5f5df2aecbfd0d716d
Reviewed-on: https://skia-review.googlesource.com/121282
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Cary Clark <caryclark@skia.org>
This variation tricks SkPath::isRect by exploiting
that the implementation resets the point pointer to
process the close verb, and using the reset pointer
to walk over a series of points that don't move.
In addition to fixing this, rename variables to
make the line creation more obvious, since left,
right, and friends, are not the left and right.
R=robertphillips@google.com
Bug: 824145,skia:7792
Change-Id: If8ebbc3eedd270652670d6e111a5bc02e61f0eec
Reviewed-on: https://skia-review.googlesource.com/121122
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Cary Clark <caryclark@skia.org>
This addresses comment #17 of skbug.com/7792.
The bug overshoots the end and exploits that the
first point tracked by close isn't the first
point in the rectangle.
Fixing this slightly regresses the example
in comment #14; before it was treated as a filled
rect but now it is not; this conservative approach
doesn't cause any other regressions.
bug7792 in pathfill.cpp verifies that all paths
in the bug draw correctly by comparing CPU and GPU.
R=robertphillips@google.com
Bug: 824145,skia:7792
Change-Id: I55bea023d2ad7456c8c3ebd9d1df95fe34e0a0d4
Reviewed-on: https://skia-review.googlesource.com/120996
Commit-Queue: Cary Clark <caryclark@skia.org>
Reviewed-by: Robert Phillips <robertphillips@google.com>
gm bug7792 had wrong dimensions and clipped out half the draws
bm SkRect_Reference.bmh referred to SkIPoint::center.. which
has been removed.
Docs-Preview: https://skia.org/?cl=120640
Bug: skia:6898
Change-Id: Id4c59c82005e1060d0ca933d9a3650fe4f121264
Reviewed-on: https://skia-review.googlesource.com/120640
Commit-Queue: Cary Clark <caryclark@skia.org>
Reviewed-by: Cary Clark <caryclark@skia.org>
More edge cases found; clean up the logic a bit
to make more clear where the rectangle points
start and stop.
R=robertphillips@google.com,brianosman@google.com
Bug: 824145,skia:7792
Change-Id: Ie24dfd1519f30875f44ffac68e20d777490b00b9
Reviewed-on: https://skia-review.googlesource.com/120422
Commit-Queue: Cary Clark <caryclark@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
This reverts commit 2097fd03ff.
Reason for revert: This is breaking a lot of Windows bots (esp. on the shadermaskfilter_localmatrix)
Original change's description:
> Fix handling of MaskFilter matrices
>
> 1) extend GrFPArgs to track pre/post local matrices, add helpers for
> creating pre/post wrapper args
>
> 2) add a SkShaderBase helper (totalLocalMatrix) to centralize the LM
> sandwich logic.
>
> 3) update call sites to use the above
>
> 4) rename SkMatrixFilter::makeWithLocalMatrix -> makeWithMatrix, to
> disambiguate vs. SkShader::makeWithLocalMatrix.
>
> BUG=skia:7744
>
> Change-Id: Ib2b7b007e6924979b00649dde7c94ef4b34771f1
> Reviewed-on: https://skia-review.googlesource.com/119330
> Commit-Queue: Florin Malita <fmalita@chromium.org>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
TBR=bsalomon@google.com,robertphillips@google.com,fmalita@chromium.org,reed@google.com
Change-Id: I918dbb95bf00b3122e6699b84566ec82dbb5fc5c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:7744
Reviewed-on: https://skia-review.googlesource.com/120340
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
1) extend GrFPArgs to track pre/post local matrices, add helpers for
creating pre/post wrapper args
2) add a SkShaderBase helper (totalLocalMatrix) to centralize the LM
sandwich logic.
3) update call sites to use the above
4) rename SkMatrixFilter::makeWithLocalMatrix -> makeWithMatrix, to
disambiguate vs. SkShader::makeWithLocalMatrix.
BUG=skia:7744
Change-Id: Ib2b7b007e6924979b00649dde7c94ef4b34771f1
Reviewed-on: https://skia-review.googlesource.com/119330
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Add a check to see that the close path generated line
is horizontal or vertical when determining that path
is a rect.
Also change several tests to defer their initialization
to reduce debugging interference.
R=brianosman@google.com,robertphillips@google.com
Bug: 824145,skia:7792
Change-Id: I4a081ee4ffd3558b499a7a1aede2d6232059715e
Reviewed-on: https://skia-review.googlesource.com/120081
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Cary Clark <caryclark@google.com>
SK_IGNORE_TO_STRING is not defined anywhere.
The same effect can be had by using a modern
linker.
Removing it simplifies bookmaker and makes
our includes easier to understand.
R=robertphillips@google.comTBR=reed@google.com
Bug: skia:6898
Change-Id: Ib716f5ef1b42a7fbda0df43ece212d1b7c40289f
Reviewed-on: https://skia-review.googlesource.com/118963
Reviewed-by: Robert Phillips <robertphillips@google.com>
Reviewed-by: Cary Clark <caryclark@skia.org>
Commit-Queue: Cary Clark <caryclark@skia.org>
Inherited/outer local matrices are supposed to compose to the right of
(preconcat) other/nested local matrices.
BUG=skia:7781
Change-Id: Icd3c24f226845427be849a8be3d78293aef176b3
Reviewed-on: https://skia-review.googlesource.com/118344
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Mike Reed <reed@google.com>
Performs inset and outset operations on simple polygons and returns
a simple polygon, if possible.
Bug: skia:
Change-Id: I6d468174ad70b5279b736c532e19cbb84ff9f955
Reviewed-on: https://skia-review.googlesource.com/116483
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
This reverts commit a466228a61.
Reason for revert: Turned up a vulkan driver bug
Original change's description:
> Delete GPU alpha clip masks
>
> The cost of switching render targets on each draw to make a custom
> clip is enormous. There are virtually no circumstances where this will
> outperform our cached, multi-threaded software mask generator. The
> tried-and-true approach to clipping on-GPU is with analytic FPs. And
> now that we support CCPR clip FPs, there ulitmately should be very few
> clip stacks that even require a mask as long as they don't use
> deprecated SkClipOps.
>
> Bug: skia:
> Change-Id: I79c5558c93c1b99179f1e933d029f69b14ad1ce3
> Reviewed-on: https://skia-review.googlesource.com/116724
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Chris Dalton <csmartdalton@google.com>
TBR=robertphillips@google.com,brianosman@google.com,csmartdalton@google.com
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: skia:
Change-Id: Iba289e00ba2eca7084dc8517491cfb5f6ab6266f
Reviewed-on: https://skia-review.googlesource.com/117420
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
The cost of switching render targets on each draw to make a custom
clip is enormous. There are virtually no circumstances where this will
outperform our cached, multi-threaded software mask generator. The
tried-and-true approach to clipping on-GPU is with analytic FPs. And
now that we support CCPR clip FPs, there ulitmately should be very few
clip stacks that even require a mask as long as they don't use
deprecated SkClipOps.
Bug: skia:
Change-Id: I79c5558c93c1b99179f1e933d029f69b14ad1ce3
Reviewed-on: https://skia-review.googlesource.com/116724
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Prep for adding new offset routines.
Change-Id: I261c22d9998e5ae4567b697c5f20a31f20777ac1
Reviewed-on: https://skia-review.googlesource.com/116800
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
BUG=skia:7624
Change-Id: Id2b7449048591892ff802484d5e3745a7e1402bb
Reviewed-on: https://skia-review.googlesource.com/109521
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Herb Derby <herb@google.com>
Nice to have something to trigger this issue.
Bug: skia:7674
Change-Id: I653699b82f3a8a4d551f3cd98b6a7e7620c6e035
Reviewed-on: https://skia-review.googlesource.com/115920
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
Remove unused GrBackendObject variants.
Add versions without redundant size param.
Make this work with GrBackendTextures that weren't created with a GrPixelConfig.
Change-Id: Ic1bbf5f2817cebab938b4f31000126a6ab5c44d5
Reviewed-on: https://skia-review.googlesource.com/114460
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
drawTextRSXform should draw the same as drawTextOnPath (as regards shaders)
Bug: b/69904791
Change-Id: I393dd8fd7a5bdc6a018b1ca33592b208c7141868
Reviewed-on: https://skia-review.googlesource.com/114468
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Herb Derby <herb@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
A change currently in progress would break these test files since they
aren't including what they use. Make them include what they use so they
don't break in the future.
Change-Id: I25d8d57631706dec0d0197b3759c6c18a0fe3aa0
Reviewed-on: https://skia-review.googlesource.com/114465
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
Adds an attenuation parameter to corners that corrects the over-coverage
from linear interpolation.
Adds a GM for shared corners that ensures we're doing this right.
Bug: skia:
Change-Id: Iff8bd40554f9fda2e7e03faa3c9fbefe65f27568
Reviewed-on: https://skia-review.googlesource.com/114272
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Add a third define in SkCanvasPriv to complement
SkCanvas::kDontClipToLayer_PrivateSaveLayerFlag and
SkCanvas::kDontClipToLayer_Legacy_SaveLayerFlag.
SkCanvas::kDontClipToLayer_PrivateSaveLayerFlag exists only to define
SkCanvas::kDontClipToLayer_Legacy_SaveLayerFlag and
SkCanvasPriv::kDontClipToLayer_SaveLayerFlag.
SkCanvas::kDontClipToLayer_Legacy_SaveLayerFlag is used only by
Android framework.
SkCanvasPriv::kDontClipToLayer_SaveLayerFlag is used internally.
Note that changes to CanvasStateTest.cpp inside
SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG aren't testable by existing
skiabots; it requires building an Android framework aware version
of dm. CanvasStateTest.cpp may have bit-rotted.
R=reed@google.com,scroggo@google.com
Bug: skia:6454,skia:7690
Change-Id: I74f2a54636fae89a5a88a7e13f1baba49d3e2115
Reviewed-on: https://skia-review.googlesource.com/112401
Commit-Queue: Cary Clark <caryclark@skia.org>
Reviewed-by: Leon Scroggins <scroggo@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Add support for multiple contours, and an explicit "inverted" mode.
Bug: skia:
Change-Id: Iafadbbe9d4692f2467a4ef8585f7fcd9cee9566a
Reviewed-on: https://skia-review.googlesource.com/113270
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
Just ensuring we have coverage for this case.
Change-Id: Ifcded974068e9ef90d0eb0f07eb90e0bd563d7c7
Reviewed-on: https://skia-review.googlesource.com/113461
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
