- Rename 'srgbnl' to just 'srgb'.
- Add 'narrow' and 'enarrow' for testing a gamut narrower than sRGB.
Tested by running xfermodes2 in DM... all look different, what a mess.
I also ran a few nanobenches and they seemed somewhat sane.
Change-Id: Iacdc391dc0eef4153a76f5b4f78d72c57a4371ee
Reviewed-on: https://skia-review.googlesource.com/135871
Commit-Queue: Mike Klein <mtklein@chromium.org>
Auto-Submit: Mike Klein <mtklein@chromium.org>
Reviewed-by: Brian Osman <brianosman@google.com>
Now that "srgb" is broken I don't want to accidentally run it.
"srgbnl" if of course identical, and not broken so much as
simply not yet working. :)
While here, simplify the configs we run in nanobench too, eliminating
565 and moving F16 to GCE-only (i.e. fast, abundant machines).
Similarly, remove "adobe" VIA that doesn't use Adobe RGB correctly...
Change-Id: Ic295dec97a2caadadbe8500655243db36dd2c43d
Reviewed-on: https://skia-review.googlesource.com/132932
Commit-Queue: Mike Klein <mtklein@chromium.org>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: Mike Klein <mtklein@chromium.org>
Reviewed-by: Brian Osman <brianosman@google.com>
PS5: Removes SkDestinationSurfaceColorMode, tracking of mipmap
mode on GrTexture, sRGB decode state per-texture. Because we
were often choosing sRGB configs for RGB color types, legacy
rendering would then be incorrect (too dark). So...
PS7: Stops ever using sRGB pixel configs when translating
image info or color type. Also removes a bunch of GrCaps bits
and a GrContextOption that are no longer relevant.
PS9: Adjusts surface creation unit test expectations, and
changes the raster rules accordingly.
At this point, sRGB configs are (obviously) going to be broken.
Locally, I ran 8888, gl, and the gbr- versions of both. Across
all GMs x configs, there are 13 diffs. 12 are GMs that create
surfaces with a color-space attached (and thus, the offscreen
is no longer getting sRGB pixel config). The only remainder
constructs an SkPictureImageGenerator, (with an attached color
space) and renders it to the gbr-gl canvas, which triggers a
a tagged surface inside the generator.
Bug: skia:
Change-Id: Ie5edfa157dd799f3121e8173fc4f97f6c8ed6789
Reviewed-on: https://skia-review.googlesource.com/131282
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Most of this is (obviously) not necessary to do, but once
I started, I figured I'd just get it all. Tools (nanobench,
DM, skiaserve), all GMs, benches, and unit tests, plus support
code (command line parsing and config stuff).
This is almost entirely mechanical.
Bug: skia:
Change-Id: I209500f8df8c5bd43f8298ff26440d1c4d7425fb
Reviewed-on: https://skia-review.googlesource.com/131153
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
This wasn't being run (AFAICT) and was built on pre-skcms color management.
Change-Id: I506e8767f716bc6e4590ce255c5e40f1064fc152
Reviewed-on: https://skia-review.googlesource.com/129644
Commit-Queue: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Auto-Submit: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Moves getCaps() from GrContext to GrContextPriv and removes unused refCaps().
Change-Id: Ic6a8951b656c0d1b2773eae73bff8e88af819866
Reviewed-on: https://skia-review.googlesource.com/127389
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
This reverts commit 97708e59ce.
Reason for revert: pain in the butt
Original change's description:
> allow timing in release-with-assert builds
>
> Change-Id: Ia85811bc113f951f3d7791371a5f97b49d156f70
> Reviewed-on: https://skia-review.googlesource.com/117368
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Mike Klein <mtklein@chromium.org>
TBR=mtklein@chromium.org,brianosman@google.com
Change-Id: I4282f5e887c7ec3198adde11a7300552644d22de
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/117441
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Change-Id: Ia85811bc113f951f3d7791371a5f97b49d156f70
Reviewed-on: https://skia-review.googlesource.com/117368
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
Change-Id: I17a695c64be0e2081ad4937b23038b7ce88ae293
Reviewed-on: https://skia-review.googlesource.com/115988
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Hal Canary <halcanary@google.com>
This also adds GrGpu::create/deleteTestingOnlyBackendRenderTarget. Implemented in GL only for now.
Change-Id: I9e5fdc953c4a249959af89e08332f520cefe9d90
Reviewed-on: https://skia-review.googlesource.com/113305
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
A mechanical bulk move just to get these out of the public API.
TBR=bsalomon@google.com
Change-Id: I813efbd54a09dd448275697c0e50947753a5cfd3
Reviewed-on: https://skia-review.googlesource.com/112262
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
This reverts commit 3a2cc2c2ec.
Fix code with samplecnt=0 that slipped in between trybots/CQ and landing of previous version
Change-Id: Iab19f2e8d1e9901601c8c76244d7a88c5d707fab
Reviewed-on: https://skia-review.googlesource.com/103181
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
This reverts commit 5bb82cbecd.
Reason for revert: <INSERT REASONING HERE>
Original change's description:
> Revert "Revert "Revert "Revert "Redefine the meaning of sample counts in GPU backend.""""
>
> This reverts commit 18c52a7b52.
>
> Also relands "More sample count cleanup:" and "Add new GrContext queries for imagability, surfacability, and max sample count of color types"
>
>
> Bug: skia:
> Change-Id: I4028105a3a1f16ce3944e134619eb6245af6b947
> Reviewed-on: https://skia-review.googlesource.com/102940
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Brian Salomon <bsalomon@google.com>
TBR=egdaniel@google.com,bsalomon@google.com
Change-Id: Idee23be2f1719f0bdc9305043e95a2d589bee8d1
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/103220
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
This reverts commit 18c52a7b52.
Also relands "More sample count cleanup:" and "Add new GrContext queries for imagability, surfacability, and max sample count of color types"
Bug: skia:
Change-Id: I4028105a3a1f16ce3944e134619eb6245af6b947
Reviewed-on: https://skia-review.googlesource.com/102940
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
This reverts commit d0d7270fcc.
Revert "More sample count cleanup:"
This reverts commit d653cac70e.
Revert "Add new GrContext queries for imagability, surfacability, and max sample count of color types"
This reverts commit 85ae7159c9.
Need to understand NVPR perf changes before relanding
Change-Id: I0db075fb42438ef2a1f9885df184dce52892ac4b
Reviewed-on: https://skia-review.googlesource.com/102780
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
rename getSampleCount -> getRenderTargetSampleCount because it will return
0 when a config is not renderable but *is* supported as a texture format.
(Old name kept around until Chrome stops calling it)
Add virtual GrCaps::maxRenderTargetSampleCount(GrPixelConfig).
Devirtualize isConfigRenderable() and implement as maxRTSC != 0. Separate implementation for version with bool withMSAA param to be removed after Flutter is updated to no longer call.
Consolidate various file static GrSurfaceDesc validators fns into GrCaps::validateSurfaceDesc().
Bug: skia:
Change-Id: Ie30a291aa027e910df3bd90fac8518ccdb39e53f
Reviewed-on: https://skia-review.googlesource.com/102141
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
This reverts commit 8005bff7e6.
Reason for revert: hwui, flutter, and headless blink in G3 all still using these.
Original change's description:
> hide picture virtuals (no public callers)
>
> This prepares the way for a clean impl of a "placeholder" picture that never unrolls
>
> Bug: skia:
> Change-Id: I3b5785c5c94432b54e9a7dc280b2a6e716592473
> Reviewed-on: https://skia-review.googlesource.com/100260
> Commit-Queue: Mike Reed <reed@google.com>
> Reviewed-by: Mike Klein <mtklein@chromium.org>
TBR=mtklein@chromium.org,mtklein@google.com,reed@google.com
Change-Id: I385789dd420588ea9a9390c8a44c6ecb96c7f358
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/100880
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
This prepares the way for a clean impl of a "placeholder" picture that never unrolls
Bug: skia:
Change-Id: I3b5785c5c94432b54e9a7dc280b2a6e716592473
Reviewed-on: https://skia-review.googlesource.com/100260
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
Bug: skia:
Change-Id: I38736c5d49e3b281c2d23af3908575274ff97b5c
Reviewed-on: https://skia-review.googlesource.com/86282
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
It throttles 1000x more than intended, and I suspect that some of the
trip points it uses to decide when to throttle make no sense. We've
already turned it off on the Nexus 5x.
Change-Id: Idf556a83fe61ccc5f63c7bede3eecbe80087e28b
Reviewed-on: https://skia-review.googlesource.com/81303
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
Piece of the larger effort to merge readbuffer and validatingreadbuffer
Bug: skia:
Change-Id: I79305e27c4712c3b91d213d09d6c2ef24b86e671
Reviewed-on: https://skia-review.googlesource.com/81120
Commit-Queue: Mike Reed <reed@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Mike Klein <mtklein@chromium.org>
Change-Id: I871dd5eea4496e87c206b46d9eae81cb521b11ce
Reviewed-on: https://skia-review.googlesource.com/65103
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
Adds the flag and a disables caching on the CCPR bots.
Bug: skia:
Change-Id: Icb85e77f89634dda1d419dacac5b8a93340723f0
Reviewed-on: https://skia-review.googlesource.com/59740
Reviewed-by: Eric Boren <borenet@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Allows benchmarks to override GrContextOptions.
Removes the ability to use the same GrContext for all benchmarks in a config.
Change-Id: I5ab9f6e81055451ac912a66537843d1a49f3b479
Reviewed-on: https://skia-review.googlesource.com/34080
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
On ANGLE, at least, this frame gives us much more consistent results.
Bug: skia:
Change-Id: Ifdecc8451ef51490c08057645214738180b1a366
Reviewed-on: https://skia-review.googlesource.com/57884
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Move the check for kFailedLoops above code that times the benchmark.
This matches the comment ("Can't be timed") and prevents an infinite
loop.
Bug: skia:6774
Change-Id: Iacdc1ca1d11afcf05afac60e4eb0d8d9a12f800e
Reviewed-on: https://skia-review.googlesource.com/53803
Reviewed-by: Yuqian Li <liyuqian@google.com>
Commit-Queue: Leon Scroggins <scroggo@google.com>
This reverts commit 88757dacd4.
Reason for revert: Still seems to be failing Chromium "telemetry_perf_unittests (with patch) on Android" on android_n5x_swarming_rel.
Original change's description:
> guard old apis for querying byte-size of a bitmap/imageinfo/pixmap
>
> Now with legacy behavior for allocpixels
>
> This was reverted, so the current CL is a "fix" on top of ...
> https://skia-review.googlesource.com/c/skia/+/50980
>
> Related update to Chrome (in preparation for this change)
> https://chromium-review.googlesource.com/c/chromium/src/+/685719
>
> Bug: skia:
> Change-Id: I4b370ee7e95083ab27421f008132219c9c7b86e9
> Reviewed-on: https://skia-review.googlesource.com/51341
> Reviewed-by: Florin Malita <fmalita@chromium.org>
> Commit-Queue: Mike Reed <reed@google.com>
TBR=fmalita@chromium.org,reed@google.com
Change-Id: I827a0ca1d1e3909e648fde3342cdb8601d34da8d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/52381
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
This reverts commit 98a6216b18.
Reason for revert: breaking the chrome roll. Looks like they may be writing data to create an image across all the row bytes and thus writing to unalloced data on the last row. Link to example failing bot:
https://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_ng/builds/539960
Original change's description:
> guard old apis for querying byte-size of a bitmap/imageinfo/pixmap
>
> Previously we had size_t and uint64_t variations.
>
> The new (simpler) API always..
> - returns size_t, or 0 if the calculation overflowed
> - returns the trimmed size (does not include rowBytes padding for the last row)
>
> Bug: skia:
> Change-Id: I05173e877918327c7b207d2f7f1ab0db36892e2e
> Reviewed-on: https://skia-review.googlesource.com/50980
> Commit-Queue: Mike Reed <reed@google.com>
> Reviewed-by: Florin Malita <fmalita@chromium.org>
> Reviewed-by: Leon Scroggins <scroggo@google.com>
TBR=mtklein@google.com,herb@google.com,scroggo@google.com,fmalita@chromium.org,reed@google.com
Change-Id: I726f6ab1b36b14979ba6f37105e0a469b3f0dbc0
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/51262
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
Previously we had size_t and uint64_t variations.
The new (simpler) API always..
- returns size_t, or 0 if the calculation overflowed
- returns the trimmed size (does not include rowBytes padding for the last row)
Bug: skia:
Change-Id: I05173e877918327c7b207d2f7f1ab0db36892e2e
Reviewed-on: https://skia-review.googlesource.com/50980
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Reviewed-by: Leon Scroggins <scroggo@google.com>
Otherwise, the first few benches' measurements will be inaccurate.
For example, without this CL, the first few measurements are:
337ns, 566µs, 1000µs, ... without "--ms 1000" arg
211ns, 285µs, 874µs, ... with "--ms 1000" arg
With this CL, the first few measurements are:
195ns, 296µs, 1.03ms, ... without "--ms 1000" arg
204ns, 280µs, 859µs, ... with "--ms 1000" arg
In the example above, the first two measurements are vastly (>50%)
different without this CL. I think that's the reason why I keep
using "--ms 1000" arg locally. But it's really only necessary for
the first bench to warm up nanobench. It's a waste to apply
"--ms 1000" to all the following benches.
Bug: skia:
Change-Id: I1924ba3ff9185ed89aeda72794fafd1fe6625eef
Reviewed-on: https://skia-review.googlesource.com/49742
Reviewed-by: Yuqian Li <liyuqian@google.com>
Commit-Queue: Yuqian Li <liyuqian@google.com>
Bug: skia:
Change-Id: Ic4073aa17a04e8b400cc4a9db9a0669ee4a5c894
Reviewed-on: https://skia-review.googlesource.com/44203
Commit-Queue: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
These are transient, so need to be copied.
Bug: skia:
Change-Id: Id24db0b96f343ecd034dd015da6e19ea61579b56
Reviewed-on: https://skia-review.googlesource.com/41741
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Also add new paragraph about using systrace correctly
Docs-Preview: https://skia.org/?cl=41502
Change-Id: I114c14cc2e87a8b72aec46d8c354d3ea877a41ab
Reviewed-on: https://skia-review.googlesource.com/41502
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Re-land of: https://skia-review.googlesource.com/36560
All information needed by the thread is captured by the prepare
callback object, the lambda captures a pointer to that, and does the
mask render. Once it's done, it signals the semaphore (also owned by the
callback). The callback defers the semaphore wait even longer (into the
ASAP upload), so the odds of waiting for the thread are REALLY low.
Also did a bunch of cleanup along the way, and put in some trace markers
so we can monitor how well this is working.
Traces of a GM that includes GPU and SW path rendering (path-reverse):
Original:
https://screenshot.googleplex.com/f5BG3901tQg.png
Threaded, with wait in the callback (notice pre flush callback blocking):
https://screenshot.googleplex.com/htOSZFE2s04.png
Current version, with wait deferred to ASAP upload function:
https://screenshot.googleplex.com/GHjD0U3C34q.png
Bug: skia:
Change-Id: Idb92f385590749f41328a9aec65b2a93f4775079
Reviewed-on: https://skia-review.googlesource.com/40775
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Motivated by wanting to speed-up A8 blits in general (and at the moment, aarect blits). More to come in these areas.
Bug: skia:
Change-Id: I45e8ef951b8e89a825af72b1918049be10920137
Reviewed-on: https://skia-review.googlesource.com/39401
Reviewed-by: Yuqian Li <liyuqian@google.com>
Commit-Queue: Mike Reed <reed@google.com>
This reverts commit 76323bc061.
Reason for revert: Breaking NUC bots in threaded gm comparison:
https://chromium-swarm.appspot.com/task?id=382e589753187f10&refresh=10
Original change's description:
> Threaded generation of software paths
>
> All information needed by the thread is captured by the prepare
> callback object, the lambda captures a pointer to that, and does the
> mask render. Once it's done, it signals the semaphore (also owned by the
> callback). The callback defers the semaphore wait even longer (into the
> ASAP upload), so the odds of waiting for the thread are REALLY low.
>
> Also did a bunch of cleanup along the way, and put in some trace markers
> so we can monitor how well this is working.
>
> Traces of a GM that includes GPU and SW path rendering (path-reverse):
>
> Original:
> https://screenshot.googleplex.com/f5BG3901tQg.png
> Threaded, with wait in the callback (notice pre flush callback blocking):
> https://screenshot.googleplex.com/htOSZFE2s04.png
> Current version, with wait deferred to ASAP upload function:
> https://screenshot.googleplex.com/GHjD0U3C34q.png
>
> Bug: skia:
> Change-Id: I3d5a230bbd68eb35e1f0574b308485c691435790
> Reviewed-on: https://skia-review.googlesource.com/36560
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
TBR=egdaniel@google.com,mtklein@google.com,bsalomon@google.com,robertphillips@google.com,brianosman@google.com
Change-Id: Icac0918a3771859f671b69ae07ae0fedd3ebb3db
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/38560
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
All information needed by the thread is captured by the prepare
callback object, the lambda captures a pointer to that, and does the
mask render. Once it's done, it signals the semaphore (also owned by the
callback). The callback defers the semaphore wait even longer (into the
ASAP upload), so the odds of waiting for the thread are REALLY low.
Also did a bunch of cleanup along the way, and put in some trace markers
so we can monitor how well this is working.
Traces of a GM that includes GPU and SW path rendering (path-reverse):
Original:
https://screenshot.googleplex.com/f5BG3901tQg.png
Threaded, with wait in the callback (notice pre flush callback blocking):
https://screenshot.googleplex.com/htOSZFE2s04.png
Current version, with wait deferred to ASAP upload function:
https://screenshot.googleplex.com/GHjD0U3C34q.png
Bug: skia:
Change-Id: I3d5a230bbd68eb35e1f0574b308485c691435790
Reviewed-on: https://skia-review.googlesource.com/36560
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Adjust the configs specified by recipes to avoid the new error.
Change-Id: I23e31355e2faaab919d92abdb37a6f70cd2da1ff
Reviewed-on: https://skia-review.googlesource.com/32862
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
DAA is:
1. Much simpler than AAA.
SkScan_AAAPath.cpp is about 1700 lines.
SkScan_DAAPath.cpp is about 300 lines.
The whole DAA CL is only about 800 lines.
2. Much faster than AAA for complicated paths.
The speedup applies to GL backend (including ccpr)!
Here's the frame time of 'SampleApp --slide Chart' on macbook pro:
AAA-raster: 33ms
DAA-raster: 21ms
AAA-gl: 30ms
DAA-gl: 20ms
AAA-ccpr: 18ms
DAA-ccpr: 12ms
My linux desktop doesn't have SSE3 so the speedup is smaller
(~25% for Chart). I believe that DAA is so fast that I can enable
it for any paths (AAA is not enabled by default for complicated
paths because it is slow; hence our older supersampling scan
converter is used for stroking on Chart for AAA-xxx config.)
3. The SkCoverageDelta is suitable for threaded backend with
out-of-order concurrent scan conversion as commented in the source
code. Maybe we can also just send deltas to GPU.
4. Similar to most analytic path renderers, the quality is on the best
ground-truth level, unless there are intersections within a pixel.
The intersections look good to my eyes although theoretically that
could be arbitrary far from the ground truth (see my AAA slides).
5. For simple paths, such as circle, triangle, rrect, etc., DAA is
slower than AAA. But DAA is faster than our older supersampling
scan converter in most cases. As those simple paths usually don't
constitute the bottleneck of a picture (skp or svg), I strongly
recommend use DAA.
6. DAA also heavily favors blitMask so it may work quite well with
SkRasterPipeline and SkRasterPipelineBlitter.
Finally, please check https://skia-review.googlesource.com/c/22420/
which accelerate DAA by specializing blitCoverageDeltas for
SkARGB32_Blitter and SkARGB32_Black_Blitter. It brings a little(<5%)
speedup. But I couldn't figure out how to reduce the duplicate code
so I don't intend to land it.
Bug: skia:
Change-Id: I3b7ed6a727447922e645b1acb737a506e7c09a4c
Reviewed-on: https://skia-review.googlesource.com/19666
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Cary Clark <caryclark@google.com>
Commit-Queue: Yuqian Li <liyuqian@google.com>
