Moves cubic root finding logic out of GrPathUtils and
PathOpsCubicIntersectionTest, and unifies it in SkGeometry.
"Normalizes" the homogeneous parameter values of the roots, rather
than the cubic inflection function. Does this normalization by
twiddling the exponents instead of division (which causes a loss of
precision).
Abandons the built-in derivatives in GrCubicEffect. These don't have
high enough precision on many mobile gpus. Instead we pass the KLM
matrix to the vertex shader via uniform, where we can use it to set up
new linear functionals from which the fragment shader can calculate
the gradient of the implicit function.
Bug: skia:4410
Change-Id: Ibd64e999520adc8cdef7803a492d3699995aef5a
Reviewed-on: https://skia-review.googlesource.com/19017
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
The monolithic GrPipeline is moved to a subclass GrLegacyDrawMeshOp.
The pipeline used to record a GrMesh draw in a GrMeshDrawOp must now be passed rather than implicitly using the op's pipeline.
Change-Id: I50d77e4dcc8d91a523fa7566ce43a9a291174706
Reviewed-on: https://skia-review.googlesource.com/11002
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
- Updates GrPathUtils to computes the KLM functionals directly instead
of deriving them from their explicit values at the control points.
- Updates the utility to return these functionals as a matrix
rather than an array of scalar values.
- Adds a benchmark for chopCubicAtLoopIntersection.
BUG=skia:
Change-Id: I97a9b5cf610d33e15c9af96b9d9a8eb4a94b1ca7
Reviewed-on: https://skia-review.googlesource.com/9951
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
The first phase of deferring GrPipeline creation until flush will apply only to GrDrawOp subclasses that do not derive from GrMeshDrawOp. This change prepares for that by creating separate draw functions on GrRenderTargetContext for GrMeshDrawOp-derived ops. This is temporary and will incrementally be undone as pipeline-creation deferral rolls out to the GrMeshDrawOps in a later phase of this work.
Change-Id: I0f5b71fe913f3273cfe9e965f7d8bbe7f01ad0ef
Reviewed-on: https://skia-review.googlesource.com/9481
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
When the op is recorded we update its bounds to incorporate both clipping and aa bloat.
Change-Id: Ia205e058ebeda5fcdb2cd5e9b8a30a4972672b14
Reviewed-on: https://skia-review.googlesource.com/9233
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
This makes GrPaints usable only once. In some places we must make copies in order to issue draws with the same paint state.
Change-Id: Ie816e5185ce93a064111cad64c6880e1e21184c2
Reviewed-on: https://skia-review.googlesource.com/6844
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
This reverts commit a8f80de2bc.
Reason for revert: nanobench failing on windows bots, possibly others
Change-Id: Iacb8c650064a28654c165665be057377ffb02ba5
Reviewed-on: https://skia-review.googlesource.com/6802
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
All GrXPFactory instances are static constexpr.
Change-Id: If1086b08534166201e53b3fd9379104e361eb5e6
Reviewed-on: https://skia-review.googlesource.com/6701
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Instead use std::unique_ptr to manage GrOp lifetime.
Change-Id: Ic1dc1e0ffd7254c3994221f498677af5bbf66a71
Reviewed-on: https://skia-review.googlesource.com/6479
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Change-Id: I6410eae41f051ce38bef6f38d670924c3483c325
Reviewed-on: https://skia-review.googlesource.com/6163
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Change-Id: Ideab66b7ca227057a767be48aba3ea69a0a19115
Reviewed-on: https://skia-review.googlesource.com/6161
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Change-Id: I35efd4ad2b7132145c1e477f0b1f283276e9fad5
Reviewed-on: https://skia-review.googlesource.com/5704
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Fixes a bad merge.
This reverts commit 073285c059.
Change-Id: I5e92339d9b33d3a6dc58b9fcd2a1b3a5684e8f8a
Reviewed-on: https://skia-review.googlesource.com/5774
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
This reverts commit 3944484020.
Reason for revert: Merges badly with a recent change. Will rebase and reland.
Original change's description:
> Reland "Remove antialiasing control from GrPaint."
>
> This contains fixes for GLPrograms test and mixed samples rendering.
>
> This reverts commit 419d81eed4.
>
> BUG=skia:
>
> Change-Id: If8f002fbfaaaab6d1607403f2b15ccc7f1e17e87
> Reviewed-on: https://skia-review.googlesource.com/5763
> Commit-Queue: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Robert Phillips <robertphillips@google.com>
>
TBR=bsalomon@google.com,robertphillips@google.com,reviews@skia.org
BUG=skia:
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Change-Id: Iff9657041e28604a845bc5a9acec7c9b248c53bd
Reviewed-on: https://skia-review.googlesource.com/5772
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
This contains fixes for GLPrograms test and mixed samples rendering.
This reverts commit 419d81eed4.
BUG=skia:
Change-Id: If8f002fbfaaaab6d1607403f2b15ccc7f1e17e87
Reviewed-on: https://skia-review.googlesource.com/5763
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
This adds an additional param (of new enum type GrAA) to draws that can antialias and a new enum GrAAType to indicate the AA technique (none, fragment shader computed coverage, msaa).
Some GMs change due to this:
1) In some places we weren't disabling MSAA when the draw was supposed to be unantialiased.
2) Some bounding rect draws that use GrFragmentProcessors were unnecessarily turning on antialiasing, by disabling it a very small number of pixel LSBs change.
Change-Id: I7d8d8793dda70bcd373d09055beb9949c1a8a4d0
Reviewed-on: https://skia-review.googlesource.com/5608
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Change-Id: I18f520924b8a2548566fd61dbea4e3e12bd253dd
Reviewed-on: https://skia-review.googlesource.com/5411
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Change-Id: I27b6324f8040899fafeda23ca524bc54a4dbf090
Reviewed-on: https://skia-review.googlesource.com/5392
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
This is in preparation for GrTextureContext and GrSurfaceContext
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4030
Change-Id: Ie58c93052e68f3f1f5fe8d15d63760de274a6fbd
Reviewed-on: https://skia-review.googlesource.com/4030
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
'static const' means, there must be at most one of these, and initialize it at
compile time if possible or runtime if necessary. This leads to unexpected
code execution, and TSAN* will complain about races on the guard variables.
Generally 'constexpr' or 'const' are better choices. Neither can cause races:
they're either intialized at compile time (constexpr) or intialized each time
independently (const).
This CL prefers constexpr where possible, and uses const where not. It even
prefers constexpr over const where they don't make a difference... I want to have
lots of examples of constexpr for people to see and mimic.
The scoped-to-class static has nothing to do with any of this, and is not changed.
* Not yet on the bots, which use an older TSAN.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2300623005
Review-Url: https://codereview.chromium.org/2300623005
This shouldn't really make any difference but allocating and holding on to a GrRenderTarget for each test target generates image differences for Mali GPUs. This CL allows an existing render target to be used for the test target.
TBR=bsalomon@google.com
Review URL: https://codereview.chromium.org/1447113002
