Repurposes the --nvpr flag as an int that says how many stencil samples
to use, or disables nvpr with a value of zero.
BUG=skia:
Review URL: https://codereview.chromium.org/1444543002
Ensures there is no period of time that is not on the clock when not
restting the graphics context between samples.
BUG=skia:
Review URL: https://codereview.chromium.org/1444473003
Adds a --reset flag that controls whether we teardown the graphics
context between samples. Also modifies the timing algorithm to always/
only pre-warm after resetting the context.
BUG=skia:
Review URL: https://codereview.chromium.org/1442643007
This will expose the BitmapRegionDecoder API as a public include
and move the implementation to src.
This makes this code more naturally exposed in Android and easier
to test in DM and nanobench.
BUG=skia:
Review URL: https://codereview.chromium.org/1438873002
This fixes a bug in Android. We cannot access the pixels after
calling decodeRegion() because the call to lock is missing.
BUG=skia:
Review URL: https://codereview.chromium.org/1442553003
We were doing it on Windows, now do it everywhere.
This just changes the backend. We could think about another step to actually
replacing all our sk_atomic_... with std atomic stuff.
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN-Trybot
TBR=reed@google.com
Only deleting from include/...
Review URL: https://codereview.chromium.org/1441773002
This is the third step in a three part change:
(1) Skia: Add SkBRDAllocator.
(2) Android: Make JavaPixelAllocator and RecyclingClippingPixelAllocator
implement SkBRDAllocator.
(3) Skia: Change SkBitmapRegionDecoder to use SkBRDAllocator and take
advantage of zero allocated memory when possible.
BUG=skia:
Review URL: https://codereview.chromium.org/1420053010
This is the first step in a three part change:
(1) Skia: Add SkBRDAllocator.
(2) Android: Make JavaPixelAllocator and RecyclingClippingPixelAllocator
implement SkBRDAllocator.
(3) Skia: Change SkBitmapRegionDecoder to use SkBRDAllocator and take
advantage of zero allocated memory when possible.
BUG=skia:
Review URL: https://codereview.chromium.org/1423253004
Rename SkCodecTools.h to SkBitmapRegionDecoderPriv.h
Move BRD code to its own directory in tools. This
allows us to not need to expose the entire tools
directory in Android.
BUG=skia:
Review URL: https://codereview.chromium.org/1417393004
We no longer need to worry about namespace
conflicts SkBitmapRegionDecoder in Android (which
we are replacing).
Additionally, the static Create() function does not
need to repeat the name BitmapRegionDecoder.
BUG=skia:
Review URL: https://codereview.chromium.org/1415243007
Some Skia classes use SkTRegistry, which requires the source files be linked in order to be registered.
Also replace "*CG*" with "SkImageDecoder_CG.cpp" for clarity.
BUG=skia:
Review URL: https://codereview.chromium.org/1405023013
The utility SubsetPath removes parts of a potentially very large path to isolate a minimal test case. SubsetPath is very useful for debugging path ops, but is not path ops specific.
PathOpsBuilderConicTest compares the output of the Path Ops Builder, sequential calls to Simplify, and SkRegions for some number of rotated ovals.
Some tests caused path ops to hang. It was caught adding a loop of curves because the head was not found by the tail. Even though the root cause has been fixed, SkSegment::addCurveTo callers now abort the path op if the same curve was added twice.
The subdivided conic weight was been computed anew. Fortunately, it's a simpler computation that the one it replaces.
Some Simplify() subroutines returned false to signal that the results needed assembling. Change these to abort the current operation instead.
Coincident curve intersection triggered two small bugs; one where no perpendicular could be found for coincident curves, and one where no coincident curves remain after looping.
The SixtyOvals test can be run through multiple processes instead of multiple threads. This strategy allows a 48 core machine to saturate all cores at 100%.
The DEBUG_VISUALIZE_CONICS code in PathOpsConicIntersectionTest acknowleges that it is easier to visualize conics with Skia than with script and html canvas. This test also verifies that path ops subdivision matches geometry chopping.
TBR=reed@google.com
Review URL: https://codereview.chromium.org/1405383004
Use DumpStackTrace in SkASSERT in GOOGLE3.
There are extra assertions enabled in debug mode that cause RecordDraw_TextBounds to fail.
New include causes a naming conflict with global name "base".
Corresponding internal cl/106495354
No public API changes.
TBR=reed@google.com
BUG=skia:
Review URL: https://codereview.chromium.org/1423013004
This involves disabling webps for kCanvas_Strategy.
We have not yet implemented webp subset decodes for this
strategy.
BUG=skia:4521
Review URL: https://codereview.chromium.org/1405273004
The result SkBitmap, the pixel allocator, and the alpha
preference need to be communicated from the client to
the region decoder.
BUG=skia:
Review URL: https://codereview.chromium.org/1418093006
This change updates a small subset of benchmarks to flush the GrContext
between draw loops (specifically SKP benchmarks, SampleApp, and the
warmup in visualbench). This helps improve timing accuracy by not
allowing the gpu to batch across draw boundaries in the affected
benchmarks.
BUG=skia:
Review URL: https://codereview.chromium.org/1427533002
- Move high-precision wall timers from tools/timer to SkTime.
- Implement SkTime::GetMSecs() in terms of SkTime::GetNSecs().
- Delete unused tools/timer code.
I have no idea what's going on there in src/animator.
I don't intend to investigate.
BUG=skia:
Committed: https://skia.googlesource.com/skia/+/70084cbc16ee8162649f2601377feb6e49de0217
CQ_EXTRA_TRYBOTS=client.skia.compile:Build-Ubuntu-GCC-x86_64-Debug-CrOS_Link-Trybot
Review URL: https://codereview.chromium.org/1422513003
Reason for revert:
broke chromeos
Original issue's description:
> SkTime::GetNSecs()
>
> - Move high-precision wall timers from tools/timer to SkTime.
> - Implement SkTime::GetMSecs() in terms of SkTime::GetNSecs().
> - Delete unused tools/timer code.
>
> I have no idea what's going on there in src/animator.
> I don't intend to investigate.
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/70084cbc16ee8162649f2601377feb6e49de0217TBR=reed@google.com,mtklein@google.com,mtklein@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:
Review URL: https://codereview.chromium.org/1420923003
- Move high-precision wall timers from tools/timer to SkTime.
- Implement SkTime::GetMSecs() in terms of SkTime::GetNSecs().
- Delete unused tools/timer code.
I have no idea what's going on there in src/animator.
I don't intend to investigate.
BUG=skia:
Review URL: https://codereview.chromium.org/1422513003
Reason for revert:
suppressions have landed in chrome
Original issue's description:
> Revert of path ops: fix conic weight and partial coincidence (patchset #5 id:80001 of https://codereview.chromium.org/1413763002/ )
>
> Reason for revert:
> path ops change breaks svg clipping layout tests -- conic is now more accurate, changing edge of circle in clip
>
> These need to be rebaselined
>
> svg/clip-path/clip-path-child-clipped.svg
> svg/clip-path/clip-path-nonzero.svg
> svg/clip-path/clip-path-evenodd-nonzero.svg
> svg/clip-path/clip-path-nonzero-evenodd.svg
>
> Original issue's description:
> > The remaining 1m skp bugs are asserts that can be harmlessly
> > suppressed and bugs around conics.
> >
> > The conic calculation for a subdivided w was just wrong.
> >
> > Also added debugging to template intersection to initialize
> > reused structures and dump additional data.
> >
> > TBR=reed@google.com
> >
> > Committed: https://skia.googlesource.com/skia/+/ef33b1e739b23a1201100ff17a572da85b03d9af
>
> TBR=
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
>
> Committed: https://skia.googlesource.com/skia/+/f428df1be3e96d3f8970d0f7f415b862f7da5404
TBR=
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/1407003016
Reason for revert:
path ops change breaks svg clipping layout tests -- conic is now more accurate, changing edge of circle in clip
These need to be rebaselined
svg/clip-path/clip-path-child-clipped.svg
svg/clip-path/clip-path-nonzero.svg
svg/clip-path/clip-path-evenodd-nonzero.svg
svg/clip-path/clip-path-nonzero-evenodd.svg
Original issue's description:
> The remaining 1m skp bugs are asserts that can be harmlessly
> suppressed and bugs around conics.
>
> The conic calculation for a subdivided w was just wrong.
>
> Also added debugging to template intersection to initialize
> reused structures and dump additional data.
>
> TBR=reed@google.com
>
> Committed: https://skia.googlesource.com/skia/+/ef33b1e739b23a1201100ff17a572da85b03d9af
TBR=
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/1408923003
This cleans up tools/ code, or code that should have been in tools/.
The only interesting code change trims features off of PictureRenderer.
It's still in use by a few useful-looking tools.
BUG=skia:
Review URL: https://codereview.chromium.org/1416913003
suppressed and bugs around conics.
The conic calculation for a subdivided w was just wrong.
Also added debugging to template intersection to initialize
reused structures and dump additional data.
TBR=reed@google.com
Review URL: https://codereview.chromium.org/1413763002
Also other minor improvements in sync scripts.
In BUILD.public, include all files under resources as data dependencies for DM. Omit newly failing DM tests and add newly passing DM tests.
Adds the OpenClipart "license" to LICENSE per comment in google3 CL 100158380.
Corresponding google3 CL is 105602927.
BUG=skia:
Review URL: https://codereview.chromium.org/1406283002
imgblur is intended to establish a ground truth for debugging mask blur issues. It performs a brute force (non-separable) Gaussian blur of the provided image.
The blur code itself is in sk_tools_utils so it can be more easily used programmatically in other places (e.g., blur unit tests).
Review URL: https://codereview.chromium.org/1384203002
Iterating through the 903K skps that represent the
imagable 1M top web pages triggers a number of
bugs, some of which are addressed here.
Some web pages trigger intersecting cubic
representations of arc with their conic
counterparts. This exposed a flaw in coincident
detection that caused an infinite loop. The loop
alternatively extended the coincident section and,
determining the that the bounds of the curve pairs
did not overlap, deleted the extension.
Track the number of times the coincident detection
is called, and if it exceeds an empirically found
limit, assume that the curves are coincident and
force it to be so.
The loop count limit can be determined by enabling
DEBUG_T_SECT_LOOP_COUNT and running all tests. The
largest count is reported on completion.
Another class of bugs was caused by concident
detection duplicating nearly identical points that
had been merged earlier. To track these bugs, the
'handle coincidence' code was duplicated as a
const debug variety that reported if one of a
dozen or so irregularities are present; then it is
easier to see when a block of code that fixes one
irregularity regresses another.
Creating the debug const code version exposed some
non-debug code that could be const, and some that
was experimental and could be removed. Set
DEBUG_COINCIDENCE to track coincidence health and
handling.
For running on Chrome, DEBUG_VERIFY checks the
result of pathops against the same operation
using SkRegion to verify that the results are
nearly the same.
When visualizing the pathops work using
tools/pathops_visualizer.htm, set
DEBUG_DUMP_ALIGNMENT to see the curves after
they've been aligned for coincidence.
Other bugs fixed include detecting when a
section of a pair of curves have devolved into
lines and are coincident.
TBR=reed@google.com
Review URL: https://codereview.chromium.org/1394503003
Fix blaze compilation errors. The default compilation options for blaze require that the initialization list must list fields in initialization order. Also deal with differing versions of libjpeg.
The BUILD changes were started by melanielc in google3 cl/102860957.
BUG=skia:
Review URL: https://codereview.chromium.org/1401883005
- Remove --images '' to renable image benchmarking
- Add a flag to disable testing JPEG's buildTileIndex, since it also leaks memory
- Do not run images on GPU
- Do not run large interlaced images on 32 bit bots
- When buildTileIndex is not being used in the subset benches, do not use it for BRD
BUG=skia:3418
BUG=skia:4469
BUG=skia:4471
BUG=skia:4360
Review URL: https://codereview.chromium.org/1396113002
Use SkCodecPrintf instead of SkDebugf.
Check if the conversion is possible rather than starting many decodes
that will certainly fail.
Small refactor to code that deals with subsets that fall outside
of the image.
BUG=skia:
Review URL: https://codereview.chromium.org/1395383002
SubsetTranslateBench.cpp:
Unref the color table, so it gets deleted.
SkBitmapRegionDecoderInterface.cpp:
Delete the stream if it is not used.
BUG=skia:3418
Review URL: https://codereview.chromium.org/1396113003
Rather than implementing some sort of "fill" in every
SkCodec subclass for incomplete images, let's make the
parent class handle this situation.
This includes an API change to SkCodec.h
SkCodec::getScanlines() now returns the number of lines it
read successfully, rather than an SkCodec::Result enum.
getScanlines() most often fails on an incomplete input, in
which case it is useful to know how many lines were
successfully decoded - this provides more information than
kIncomplete vs kSuccess. We do lose information when the
API is used improperly, as we are no longer able to return
kInvalidParameter or kScanlineNotStarted.
Known Issues:
Does not work for incomplete fFrameIsSubset gifs.
Does not work for incomplete icos.
BUG=skia:
Review URL: https://codereview.chromium.org/1332053002
Reason for revert:
I have attempted to fix the problems that caused running nanobench with images to fail, so testing to see if they are in fact fixed.
Original issue's description:
> Pass --images '' to nanobench to disable image benchmarking.
>
> Enabling image benchmarking has caused most nanobench runs to fail,
> both Debug and Release.
>
> BUG=skia:3418
> NOTREECHECKS=true
> TBR=scroggo@google.com
>
> Committed: https://skia.googlesource.com/skia/+/1f7039c6c5f0f118b629994b0bac255345e5abd6
BUG=skia:3418
Review URL: https://codereview.chromium.org/1400633002
To further consolidate the various unique owning classes, this bases
SkAutoTUnref on skstd::unique_ptr. Users are updated because of two
breaking changes, swap now takes a reference and reset no longer
returns its argument.
Review URL: https://codereview.chromium.org/1370803002
GLBenches do not expect gl state to change between onPerCanvasPreDraw and *PostDraw, but we do a clear and sometimes we clear as draw. This causes us to bind vertex objects / programs / etc.
This change creates two new virtual methods which are called right before and immediately after timing.
BUG=skia:
Review URL: https://codereview.chromium.org/1379853003
Benefits:
- This mimics other decoding APIs (including the ones SkCodec relies
on, e.g. a png_struct, which can be used to decode an entire image or
one line at a time).
- It allows a client to ask us to do what we can do efficiently - i.e.
start from encoded data and either decode the whole thing or scanlines.
- It removes the duplicate methods which appeared in both SkCodec and
SkScanlineDecoder (some of which, e.g. in SkJpegScanlineDecoder, just
call fCodec->sameMethod()).
- It simplifies moving more checks into the base class (e.g. the
examples in skbug.com/4284).
BUG=skia:4175
BUG=skia:4284
=====================================================================
SkScanlineDecoder.h/.cpp:
Removed.
SkCodec.h/.cpp:
Add methods, enums, and variables which were previously in
SkScanlineDecoder.
Default fCurrScanline to -1, as a sentinel that start has not been
called.
General changes:
Convert SkScanlineDecoders to SkCodecs.
General changes in SkCodec subclasses:
Merge SkScanlineDecoder implementation into SkCodec. Most (all?) owned
an SkCodec, so they now call this-> instead of fCodec->.
SkBmpCodec.h/.cpp:
Replace the unused rowOrder method with an override for
onGetScanlineOrder.
Make getDstRow const, since it is called by onGetY, which is const.
SkCodec_libpng.h/.cpp:
Make SkPngCodec an abstract class, with two subclasses which handle
scanline decoding separately (they share code for decoding the entire
image). Reimplement onReallyHasAlpha so that it can return the most
recent result (e.g. after a scanline decode which only decoded part
of the image) or a better answer (e.g. if the whole image is known to
be opaque).
Compute fNumberPasses early, so we know which subclass to instantiate.
Make SkPngInterlaceScanlineDecoder use the base class' fCurrScanline
rather than a separate variable.
CodexTest.cpp:
Add tests for the state changes in SkCodec (need to call start before
decoding scanlines; calling getPixels means that start will need to
be called again before decoding more scanlines).
Add a test which decodes in stripes, currently only used for an
interlaced PNG.
TODO: Add tests for onReallyHasAlpha.
Review URL: https://codereview.chromium.org/1365313002
Reason for revert:
Need to somehow get access to encoders in chrome -- link error on the roll since SkImageEncoder is not built as part of chrome.
Original issue's description:
> change pixel-serializer to support reencoding existing data
>
> Trying to evolve this interface so it can
> - support rich set of backend-encoders (including ones like ETC1 that can cheaply convert to KXT
> - allow for encoding images as well as bitmaps (e.g. for picture serialization)
> - perhaps replace SkImageEncoder as an API (assuming we create a factory that returns a serializer given a format)
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/13f48dc85aa68a60da66aaf39c93d527d11d1278TBR=scroggo@google.com,msarett@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:
Review URL: https://codereview.chromium.org/1371983003
Trying to evolve this interface so it can
- support rich set of backend-encoders (including ones like ETC1 that can cheaply convert to KXT
- allow for encoding images as well as bitmaps (e.g. for picture serialization)
- perhaps replace SkImageEncoder as an API (assuming we create a factory that returns a serializer given a format)
BUG=skia:
Review URL: https://codereview.chromium.org/1373683003
SkBitmapRegionDecoderInterface provides an interface
for multiple implementations of Android's
BitmapRegionDecoder.
We already have correctness tests in DM that will enable us
to compare the quality of our various BRD implementations.
We also need these performance tests to compare the speed
of our various implementations.
BUG=skia:4357
Review URL: https://codereview.chromium.org/1344993003
When a bot ends with extra_config SK_LIKE_THIS,
we'll define SK_LIKE_THIS when compiling.
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SK_USE_DISCARDABLE_SCALEDIMAGECACHE-Trybot,Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
BUG=skia:4354
Review URL: https://codereview.chromium.org/1346833004
Adds an entry point to GrContext to allow enumeration and tracing of GPU resources
via the newly added SkTraceMemoryDump.
Plan is for Chrome to call this on each of its GrContexts.
Dumps both the total size of GPU resources, as well as the total purgeable size.
BUG=526261
Review URL: https://codereview.chromium.org/1313743002
Displays each benchmark/skp with a graph showing a series of frame times.
Use the space bar to skip to the next benchmark.
Adds an option to hit ESC to quit VisualBench. Useful in fullscreen mode.
Review URL: https://codereview.chromium.org/1336043003
The newly created VisualLightweightBenchModule is just the old VisualBench.cpp, but gutted to only include timing code.
Future CLs will harden this abstraction, but for this CL the module owns a backpointer to VisualBench.cpp for a couple of calls.
BUG=skia:
Review URL: https://codereview.chromium.org/1304083007
The million SKPs generated require >5T of storage. A good deal
of that are copies of system fonts.
Chrome built with
#DEFINE SK_WHITELIST_SERIALIZED_TYPEFACES
will omit the font data if the font matches a precomputed
checksum.
The captured SKP prepends sk_ to the names of fonts that
have their data omitted. The SKP consumer can either add
renamed fonts from the recording machine, or add
gDeserializeTypefaceDelegate = WhitelistDeserializeTypeface;
which strips the sk_ prefix when deserializing typefaces.
whitelist_typefaces --check
Computes the checksums of fallback
fonts and returns 0 if the checksums match the checked-in
file SkWhitelistChecksum.cpp.
whitelist_typefaces --generate
Writes an updated version of SkWhitelistChecksum.cpp.
(Added Mike since this modifies a public header)
R=bungeman@google.com,rmistry@google.com,reed@google.com
Review URL: https://codereview.chromium.org/1317913005
Unfortunately, immintrin.h (which is also included by SkTypes)
includes xmmintrin.h which includes mm_malloc.h which includes
stdlib.h for malloc even though, from the implementation, it is
difficult to see why.
Fortunately, arm_neon.h does not seem to be involved in such
shenanigans, so building for Android will keep things sane.
TBR=reed@google.com
Doesn't change Skia API, just moves an include.
Review URL: https://codereview.chromium.org/1313203003
SkTemplates.h contains a number of Skia specific utilities which are
not designed for external use. In addition to reducing the external
support burden, this will allow Skia to freely refactor this file.
Review URL: https://codereview.chromium.org/1272293004
- SSE2 files are unfortunately now mixed-case, _SSE2 or _sse2.
- Adds lists for SSSE3 and SSE4 files.
- Remove SkDocument_PDF_None.cpp
- Remove a few more references to animator.
- Exclude private headers from HDRS.
- Formatting and notes.
BUG=skia:
Review URL: https://codereview.chromium.org/1298003007
This lets us test changes to BUILD.public.
This is not yet automated in any way. My hope is to trigger it quietly via the presubmit for any CL that adds or removes a file, or changes BUILD.public.
BUG=skia:
Review URL: https://codereview.chromium.org/1290833003
Works like dm_flags.py and nanobench_flags.py; adds things like
GYP_DEFINES, additional environment variables, and build targets.
Required copying builder_name_schema from the tools/build repo.
BUG=skia:4132
Review URL: https://codereview.chromium.org/1265623002
This breaks Sinks down into three auto-detected types:
- GPU: anything that requests to be run in the GPU enclave
- Vector: anything that writes to the stream instead of the bitmap
- Raster: everything else
Some examples: gpu -> GPU, msaa16 -> GPU, 8888 -> raster, pdf -> vector,
svg -> vector, pipe-8888 -> raster, tiles_rt-gpu -> GPU
This lets image decoding sinks veto non-raster backends explicitly,
and can let particular GMs veto GPU or non-GPU sinks as they like.
BUG=skia:
Review URL: https://codereview.chromium.org/1239953004
The gm output on different font platforms is so different
that comparing images in Gold has little value. Separate the
images by appending platform information to the gm name to
group somewhat similar images together.
Note that this does not attempt to make sure that all images
generated by Gold are nearly pixel identical; it only reduces
the number of nonsensical comparisons.
R=bungeman@google.com
Review URL: https://codereview.chromium.org/1245643002
... One for running to generate the coverage data, another to parse the data into various formats.
NOTRY=true
BUG=skia:2430
Review URL: https://codereview.chromium.org/1239963002
Blacklist all image tests on msaa. We do not run them anyway (since
they will not do anything interestingly different from drawing to the
raster backend) - we early exit from Src::draw(), but we still need to
create a render target that matches the size of the image (when not
blacklisted).
Remove the more specific blacklist of a particular image, which is
covered by this one.
BUG=skia:4045
Review URL: https://codereview.chromium.org/1234313006
The fixes are in the updated libjpeg-turbo repository
pulled in by DEPS. The fixes are detailed in the linked
skia bug. To summarize briefly, we now use calloc()
instead of malloc().
BUG=skia:4030
Review URL: https://codereview.chromium.org/1237213004
(and a couple presubmit fixes)
This allows us to turn back on -Werror for LLVM coverage builds,
and more generally supports building with Clang 3.7.
No public API changes.
TBR=reed@google.com
BUG=skia:
Review URL: https://codereview.chromium.org/1232463006
Tested by running on skps/sp_desk_nytimes.skp.
The output .skp had no nested draw picture calls, and the files were both 9.3M.
BUG=skia:
Review URL: https://codereview.chromium.org/1221303020
to compute the overlapping ranges and combine the winding
into a single destination.
This computes coincidence more rigorously, fixing the
edge cases exposed by this bug.
Also, add the ability to debug and dump pathop structures
from the coincident context.
TBR=reed@google.com
BUG=skia:3651
Review URL: https://codereview.chromium.org/1182493015
Runs the build and run scripts for coverage, then dumps the results into
a file in nanobench-compatible format.
BUG=skia:2430
Review URL: https://codereview.chromium.org/1227523004
The ~ means "don't run this". This keeps all the other bots running the code, skipping it only on the whiny TSAN bot.
BUG=skia:3997
Review URL: https://codereview.chromium.org/1213033003
Adds a nanobench mode that takes samples for a fixed amount of time,
rather than taking a fixed amount of samples.
BUG=skia:
Review URL: https://codereview.chromium.org/1204153002
Start moving to a world where everyone provides surface properties.
Most notably this exposes a portion of SkSurfaceProps to the C API.
BUG=skia:3934
Review URL: https://codereview.chromium.org/1195003003
This should be a drop-in replacement for most for-loops to make them run in parallel:
for (int i = 0; i < N; i++) { code... }
~~~>
sk_parallel_for(N, [&](int i) { code... });
This is just syntax sugar over SkTaskGroup to make this use case really easy to write.
There's no more overhead that we weren't already forced to add using an interface like batch(),
and no extra heap allocations.
I've replaced 3 uses of SkTaskGroup with sk_parallel_for:
1) My unit tests for SkOnce.
2) Cary's path fuzzer.
3) SkMultiPictureDraw.
Performance should be the same. Please compare left and right for readability. :)
BUG=skia:
No public API changes.
TBR=reed@google.com
Review URL: https://codereview.chromium.org/1184373003
