This turns DAA off by default in Skia and in our tools,
while leaving it able to be turned back on if we want.
(There's at least one bot that does already.)
This setup keeps our default builds matching the behavior
of Chromium, Flutter, Android, Google3, and should prevent
anyone from accidentally falling into it.
Change-Id: Ia85f3dbe69c46cec0dac6b07fb5feb6e8b65d237
Reviewed-on: https://skia-review.googlesource.com/c/189580
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
This allows setting of GrContextOptions::fReduceOpListSplitting
The fActiveOpList pointer isn't used when fReduceOpListSplitting is enabled.
Change-Id: I06d6b03a4bd80964a54e0f5231023a679aa97a0c
Reviewed-on: https://skia-review.googlesource.com/c/161040
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
The Windows filesystem is case insensitive, so by asking for all .xxx
files and then all .XXX files, we ended up processing every file twice.
Bug: skia:
Change-Id: I2b9e8bff988eefa32c40e58eef5b297cd0166231
Reviewed-on: https://skia-review.googlesource.com/152382
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Unfortunately, this seems like the best way to have a local bot that uses the old-style allocation.
Change-Id: I3124d04bdbd2b262867a620fa467de86fec42d8f
Reviewed-on: https://skia-review.googlesource.com/145680
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
With the upcoming ccpr stroking, this will no longer be the only path
renderer that can handle hairlines.
Bug: skia:
Change-Id: I45b30ccd578bee1388a3a07a234af76a19768de6
Reviewed-on: https://skia-review.googlesource.com/142272
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Bug: skia:8136
Change-Id: I18c4ad549c52346ebfe23d172597d5da205e5c4d
Reviewed-on: https://skia-review.googlesource.com/142105
Commit-Queue: Eric Boren <borenet@google.com>
Reviewed-by: Ben Wagner <benjaminwagner@google.com>
This reverts commit 880b9d302f.
Reason for revert: Appears to be breaking serialization.
See https://ci.chromium.org/raw/build/logs.chromium.org/skia/20180718T201711.486335899Z_000000000077bbff/+/annotations
Original change's description:
> Add kAAHairline to GpuPathRenderers
>
> With the upcoming ccpr stroking, this will no longer be the only path
> renderer that can handle hairlines.
>
> Bug: skia:
> Change-Id: Idf2543f053c8603c80fcd647ca18ffd9860a85f3
> Reviewed-on: https://skia-review.googlesource.com/142246
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Chris Dalton <csmartdalton@google.com>
TBR=brianosman@google.com,csmartdalton@google.com
Change-Id: I1967c2cf6b1f1307270bf62bb04130cdf84317b7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/142280
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
With the upcoming ccpr stroking, this will no longer be the only path
renderer that can handle hairlines.
Bug: skia:
Change-Id: Idf2543f053c8603c80fcd647ca18ffd9860a85f3
Reviewed-on: https://skia-review.googlesource.com/142246
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
SkCanvas::drawVertices now supports overloads that take an array of bone deformation matrices.
SkVertices::MakeCopy and SkVertices::Builder now support two additional optional attributes, boneIndices and boneWeights.
Bug: skia:
Change-Id: I30a3b11691e7cdb13924907cc1401ff86d127aea
Reviewed-on: https://skia-review.googlesource.com/137221
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Ruiqi Mao <ruiqimao@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>
Change-Id: I6bb270d9df1c76b9d2e384abde603cdda91c9bb6
Reviewed-on: https://skia-review.googlesource.com/116550
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
This will let us also render the GMs via DDLs.
TBR=mtklein@google.com
Change-Id: If7c2460d964822a6decc33cf5e8e685e67923127
Reviewed-on: https://skia-review.googlesource.com/116463
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
This reverts commit bd2e2a0caf.
Reason for revert:
Build-Debian9-Clang-x86_64-Debug-MSAN
In file included from ../../../dm/DMSrcSink.cpp:8:
../../../dm/DMSrcSink.h:548:15: error: private field 'fNumDivisions' is not used [-Werror,-Wunused-private-field]
const int fNumDivisions;
Original change's description:
> Switch DDL rendering to be a Via in DM
>
> This will let us also render the GMs via DDLs.
>
> Change-Id: I866a5af66d737473f4760dbc9d45053460c42e6e
> Reviewed-on: https://skia-review.googlesource.com/116021
> Commit-Queue: Robert Phillips <robertphillips@google.com>
> Reviewed-by: Greg Daniel <egdaniel@google.com>
> Reviewed-by: Mike Klein <mtklein@google.com>
TBR=egdaniel@google.com,mtklein@google.com,robertphillips@google.com
Change-Id: Ice07c25ab29c57b2efb193c03e5504a2ae1a0743
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/116560
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
This will let us also render the GMs via DDLs.
Change-Id: I866a5af66d737473f4760dbc9d45053460c42e6e
Reviewed-on: https://skia-review.googlesource.com/116021
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
The bug is spotted by the new sink. I'd expect more bugs to be revealed
and fixed using the new sink.
Bug: skia:
Change-Id: I6b0c9267079fbd6149004f0ecd55ddb179702588
Reviewed-on: https://skia-review.googlesource.com/109720
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Yuqian Li <liyuqian@google.com>
This moves DMFontMgr and several related files which are tightly related
to fonts into tools/fonts, moves some flags around to prevent
duplication, and adds the nativeFonts handling to Viewer.
Change-Id: Id1bdad708a6b74319ac5ac9adfe21025db4ca0b2
Reviewed-on: https://skia-review.googlesource.com/108904
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
This handles most of the GL driver workarounds but not Vulkan (yet). GL wokarounds related to config support are still not handled.
Change-Id: I3d0f62ac8a0f6e9ba13632ea82acdc493912c63d
Reviewed-on: https://skia-review.googlesource.com/98382
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
Bug: skia:
Change-Id: I45501b6e32ac593d5d69c98c1455d9bde01b239f
Reviewed-on: https://skia-review.googlesource.com/87603
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
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>
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>
Explicitly disable it on PixelC. This is arbitrary, so we continue to
get coverage of the single-threaded code.
Bug: skia:
Change-Id: I0ac91f7ca58652933db452720f353068cf2d0f2d
Reviewed-on: https://skia-review.googlesource.com/50000
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
We like a LIFO default thread pool in tools like DM for better
memory/time locality... the bots use less memory this way, and
generally run faster.
But most use cases want a FIFO queue, so that they can get going
on the next parts of early work while later work is still running.
This splits the implementation into one using SkTArray and pop_back
for LIFO, and a new one using std::deque and pop_front for FIFO.
Change-Id: Ief203b6869a00f1f8084019431a781d15fc63750
Reviewed-on: https://skia-review.googlesource.com/41849
Commit-Queue: Mike Klein <mtklein@chromium.org>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Yuqian Li <liyuqian@google.com>
Reviewed-by: 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>
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>
Perf showed that DAA is slow with MSVC. Disable it until I find
out why.
Bug: skia:
Change-Id: If30c24e97fa42e3a7ce143a1b1d06e4a3f278d13
TBR: mtklein@google.com
Reviewed-on: https://skia-review.googlesource.com/30584
Reviewed-by: Mike Klein <mtklein@chromium.org>
Reviewed-by: Yuqian Li <liyuqian@google.com>
Commit-Queue: Yuqian Li <liyuqian@google.com>
The earlier CL doesn't change the flag definition so it's not
turned on yet.
Bug: skia:
Change-Id: Id278ae5fc27d703ab7f6628bed95093d32cd7d0b
TBR: caryclark@google.com, fmalita@chromium.org
Reviewed-on: https://skia-review.googlesource.com/28161
Commit-Queue: Yuqian Li <liyuqian@google.com>
Reviewed-by: Yuqian Li <liyuqian@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>
Not yet thread safe (so it forces threading off).
Builds JSON on the fly, so overhead is certainly bad.
Plan to fix all of that, but this at least "works".
There is now one tracing flag: 'trace'.
- 'debugf' installs the SkDebugf tracer.
- 'atrace' installs the Android ATrace tracer.
- Any other value is interpreted as a filename, and
produces a JSON file for chrome://tracing.
All three modes work in DM, nanobench, and Viewer.
Bug: skia:
Change-Id: I3fbc22382b99418a508c670be2770195c0a1c364
Reviewed-on: https://skia-review.googlesource.com/24781
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Also adds more trace events to GPU backend.
Change-Id: Ifa5f0cd4b1fd582f0cc30d37d9e6414dc498c75d
Reviewed-on: https://skia-review.googlesource.com/24622
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
The only difference is that we now also put the guard flag
SK_SUPPORT_LEGACY_AAA in SkUserConfig.h. Previously, SkAnalyticEdge.cpp doesn't
get that flag from SkScan.h and that caused many problems.
BUG=skia:
TBR=reed@google.com,caryclark@google.com
Change-Id: I134bb76cebd6fffa712f438076668765321bba3b
Reviewed-on: https://skia-review.googlesource.com/6992
Reviewed-by: Yuqian Li <liyuqian@google.com>
Commit-Queue: Yuqian Li <liyuqian@google.com>
This reverts commit b46fff60bc.
Reason for revert: possible chromium cc unit tests failure
Change-Id: Ie174c55e4d0fc3ae45854b5897ba26b7ad5a9c13
Reviewed-on: https://skia-review.googlesource.com/6981
Commit-Queue: Yuqian Li <liyuqian@google.com>
Reviewed-by: Yuqian Li <liyuqian@google.com>
The only difference is that we now put the guard flag SK_SUPPORT_LEGACY_AAA in
SkUserConfig.h instead of SkScan.h. Previously, SkAnalyticEdge.cpp doesn't get
that flag from SkScan.h and that caused many problems.
BUG=skia:
TBR=reed@google.com,caryclark@google.com
Change-Id: I7b89d3cb64ad71715101d2a5e8e77be3a8a6fa16
Reviewed-on: https://skia-review.googlesource.com/6972
Reviewed-by: Yuqian Li <liyuqian@google.com>
Commit-Queue: Yuqian Li <liyuqian@google.com>
This reverts commit 89a0e72287.
Reason for revert: <INSERT REASONING HERE>
Original change's description:
> Implement Analytic AA for General Paths (with Guard against Chrome)
>
> I've set up a SK_SUPPORT_LEGACY_AAA flag to guard against Chromium layout tests. I also set that flag in this CL so theoretically this CL won't trigger any GM changes. I'll use this to verify my guard, and remove that flag and actually enables concave AAA in a future CL.
>
> When enabled, for most simple concave paths (e.g., rectangle stroke, rrect stroke, sawtooth, stars...), the Analytic AA achieves 1.3x-2x speedup, and they look much prettier. And they probably are the majority in our use cases by number. But they probably are not the majority by time cost; a single complicated path may cost 10x-100x more time to render than a rectangle stroke... For those complicated paths, we fall back to supersampling by default as we're likely to be 1.1-1.2x slower and the quality improvement is not visually significant. However, one can use gSkForceAnalyticAA to disable that fallback.
>
> BUG=skia:
>
> Change-Id: If9549a3acc4a187cfaf7eb51890c148da3083d31
> Reviewed-on: https://skia-review.googlesource.com/6091
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Yuqian Li <liyuqian@google.com>
>
TBR=caryclark@google.com,liyuqian@google.com,reed@google.com
BUG=skia:
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Change-Id: I13c05aaa1bcb14956bd0fe01bb404e41be75af22
Reviewed-on: https://skia-review.googlesource.com/6961
Commit-Queue: Yuqian Li <liyuqian@google.com>
Reviewed-by: Yuqian Li <liyuqian@google.com>
I've set up a SK_SUPPORT_LEGACY_AAA flag to guard against Chromium layout tests. I also set that flag in this CL so theoretically this CL won't trigger any GM changes. I'll use this to verify my guard, and remove that flag and actually enables concave AAA in a future CL.
When enabled, for most simple concave paths (e.g., rectangle stroke, rrect stroke, sawtooth, stars...), the Analytic AA achieves 1.3x-2x speedup, and they look much prettier. And they probably are the majority in our use cases by number. But they probably are not the majority by time cost; a single complicated path may cost 10x-100x more time to render than a rectangle stroke... For those complicated paths, we fall back to supersampling by default as we're likely to be 1.1-1.2x slower and the quality improvement is not visually significant. However, one can use gSkForceAnalyticAA to disable that fallback.
BUG=skia:
Change-Id: If9549a3acc4a187cfaf7eb51890c148da3083d31
Reviewed-on: https://skia-review.googlesource.com/6091
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Yuqian Li <liyuqian@google.com>
This reverts commit ada12ab055.
Reason for revert: Google3 needs it:
https://test.corp.google.com/ui#id=OCL:142184832:BASE:142184975:1481839118985:32fde8ef
Original change's description:
> Remove all KTX support
>
> It is untested and unused.
>
> Change-Id: I010ff4ad942738f362d42a99af4edbbb1cb0cd71
> Reviewed-on: https://skia-review.googlesource.com/6142
> Commit-Queue: Leon Scroggins <scroggo@google.com>
> Reviewed-by: Mike Klein <mtklein@chromium.org>
> Reviewed-by: Robert Phillips <robertphillips@google.com>
>
TBR=mtklein@chromium.org,mtklein@google.com,robertphillips@google.com,scroggo@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Change-Id: I1ea2f9487eb2212efbfcc514122792b70c9e8737
Reviewed-on: https://skia-review.googlesource.com/6181
Commit-Queue: Leon Scroggins <scroggo@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
It is untested and unused.
Change-Id: I010ff4ad942738f362d42a99af4edbbb1cb0cd71
Reviewed-on: https://skia-review.googlesource.com/6142
Commit-Queue: Leon Scroggins <scroggo@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
Reviewed-by: Robert Phillips <robertphillips@google.com>
It is moved to src/utils. It is almost a tool, but has two uses in
src/ports.
The existing SkOSFile.cpp is left empty for the time being since it is
mentioned in Chromium's BUILD.gn for Skia.
Change-Id: I3bb7f7c4214359eb6ab906bfe76737d20bf1d6c7
Reviewed-on: https://skia-review.googlesource.com/4536
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Ben Wagner <bungeman@google.com>