Commit Graph

266 Commits

Author SHA1 Message Date
Mike Klein
e9f78b41c6 Guard against buggy ucrt\math.h.
BUG=666707

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=5089

CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Change-Id: I3bebfdf635d541d92fb84236f0f6fae2da39d691
Reviewed-on: https://skia-review.googlesource.com/5089
Reviewed-by: Bruce Dawson <brucedawson@google.com>
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
2016-11-28 15:40:23 +00:00
Robert Phillips
93f1633abc Fix gpu blurring on platforms that "useDrawInsteadOfClear"
Platforms that "useDrawInsteadOfClear" take a different path in
GrRenderTargetContext::internalClear. The different path involves
a lot of comparisons of the drawn rect with the bounds of the RenderTarget. Since the RenderTargets are now deferred (and the instantiated version might be larger than the proxied size) case must be taken in prematurely optimizing away clears and draws.

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=5148

TBR=bsalomon@google.com

Change-Id: If63b6393fb66328175bc92de211e7242e903f25e
Reviewed-on: https://skia-review.googlesource.com/5148
Reviewed-by: Robert Phillips <robertphillips@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2016-11-25 21:36:00 +00:00
Brian Osman
45580d3e30 Added GrSurfaceContext and GrTextureContext
This lets copy-to-texture to be treated like copy-to-rt.
To match current behavior, though, copies to texture are
still executed immediately (forcing a flush).

Once MDB is enabled, copies to texture will be deferred.

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=5093

Change-Id: Icc0ce5435507a5f0a237c22eedef879824952367
Reviewed-on: https://skia-review.googlesource.com/5093
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
2016-11-23 15:52:27 +00:00
robertphillips
1125a030c7 Add IORef capability to GrSurfaceProxy objects - take 2
Re-landing of https://skia-review.googlesource.com/c/4734/ (Add IORef capability to GrSurfaceProxy objects) with fixes for:
 platforms that don't support discards.
 memory leak due to copying over of GrSurfaceProxy's creation ref to instantiated GrSurface in instantiate()

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4827
BUG=skia:

Change-Id: If0b695d5cafc5ef3fdd251c38262849d09e5d27f
Review-Url: https://codereview.chromium.org/2502923003
2016-11-16 11:17:17 -08:00
Robert Phillips
f27bab207a Revert "Add IORef capability to GrSurfaceProxy objects"
This reverts commit 286b96f876.

Reason for revert: 

Failure on Mac Mini:

FAILURE: ../../../tests/ProxyRefTest.cpp:59	proxy->getPendingWriteCnt_TestOnly() == expectedNumWrites

../../../tests/ProxyRefTest.cpp:64: fatal error: "assert(proxy->getPendingWriteCnt_TestOnly() == expectedNumWrites)"


Original change's description:
> Add IORef capability to GrSurfaceProxy objects
> 
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4734
> 
> Change-Id: If10fbe555e9fa3331bfa01065028e1afe82adb78
> Reviewed-on: https://skia-review.googlesource.com/4734
> Commit-Queue: Robert Phillips <robertphillips@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> 

TBR=bsalomon@google.com,robertphillips@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I5e1c201e027d4e9687b01f28a418b1884d3f9ece
Reviewed-on: https://skia-review.googlesource.com/4776
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
2016-11-14 19:29:39 +00:00
Robert Phillips
286b96f876 Add IORef capability to GrSurfaceProxy objects
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4734

Change-Id: If10fbe555e9fa3331bfa01065028e1afe82adb78
Reviewed-on: https://skia-review.googlesource.com/4734
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
2016-11-14 19:04:47 +00:00
Robert Phillips
294870ff11 Add explicit UniqueID classes for GrGpuResource & GrSurfaceProxy
This sets the stage for using the Proxy's/RenderTargetContext's ID above the flush and the RenderTarget's/GrGpuResource's below the flush.

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4650

Change-Id: I9f1e6b00c02a0691d90b58c49e1d8c60684884c1
Reviewed-on: https://skia-review.googlesource.com/4650
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
2016-11-11 18:24:56 +00:00
Robert Phillips
ec2249fc73 Move GrRenderTargetPriv::maxWindowRectangles to GrRenderTargetContextPriv & GrRenderTargetProxy
This removes a reason to call accessRenderTarget on the GrRenderTargetContext

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4583

Change-Id: I6e8a53ffd5c1fea80f542b70e05744e2991f70f8
Reviewed-on: https://skia-review.googlesource.com/4583
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2016-11-09 15:10:37 +00:00
Robert Phillips
3743013f75 Consolidate GrSurfaceProxy Make methods
I think GrSurfaceDesc is still the most compact way to communicate the deferred GrSurface's settings to the Proxy but this CL, at least, reduces where it is used.

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4559

Change-Id: Ica599c28a5aef1ed4094f47a4ac119e2d204d652
Reviewed-on: https://skia-review.googlesource.com/4559
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
2016-11-09 12:20:50 +00:00
Robert Phillips
eaa862569d Revert "Revert "Add GrRenderTargetContext instantiate & asTextureProxy""
This reverts commit 7d7d7d1946.

Reason for revert: Reverting this to see if it really was crashing on SVGs or if that was cross talk.

Original change's description:
> Revert "Add GrRenderTargetContext instantiate & asTextureProxy"
> 
> This reverts commit 9113edfff8.
> 
> Reason for revert: Looks to be causing EXCEPTION_ACCESS_VIOLATION:
> 
> https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Win-MSVC-NUC-GPU-IntelIris6100-x86_64-Debug/builds/121/steps/test_skia%20on%20Windows/logs/stdio
> https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Win-MSVC-GCE-CPU-AVX2-x86-Debug/builds/2384/steps/test_skia%20on%20Windows-2008ServerR2-SP1/logs/stdio
> https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Win-MSVC-ShuttleC-GPU-iHD530-x86_64-Debug/builds/785/steps/test_skia%20on%20Windows/logs/stdio
> 
> Original change's description:
> > Add GrRenderTargetContext instantiate & asTextureProxy
> > 
> > This CL also centralizes the instantiation code in GrSurfaceProxy and adds a test.
> > 
> > GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4494
> > 
> > Change-Id: I0081d9a216dc0af293179f23bcb88acf6a822324
> > Reviewed-on: https://skia-review.googlesource.com/4494
> > Reviewed-by: Brian Salomon <bsalomon@google.com>
> > Commit-Queue: Robert Phillips <robertphillips@google.com>
> > 
> 
> TBR=bsalomon@google.com,robertphillips@google.com,reviews@skia.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> 
> Change-Id: I225ce7867ebd445067e5ea55ebbfd587f7fe782a
> Reviewed-on: https://skia-review.googlesource.com/4528
> Commit-Queue: Leon Scroggins <scroggo@google.com>
> Reviewed-by: Leon Scroggins <scroggo@google.com>
> 

TBR=bsalomon@google.com,robertphillips@google.com,scroggo@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: Ifc3b9ac343009a3808f5f47500eef50df438e3d9
Reviewed-on: https://skia-review.googlesource.com/4537
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
2016-11-08 13:49:49 +00:00
Leon Scroggins
7d7d7d1946 Revert "Add GrRenderTargetContext instantiate & asTextureProxy"
This reverts commit 9113edfff8.

Reason for revert: Looks to be causing EXCEPTION_ACCESS_VIOLATION:

https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Win-MSVC-NUC-GPU-IntelIris6100-x86_64-Debug/builds/121/steps/test_skia%20on%20Windows/logs/stdio
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Win-MSVC-GCE-CPU-AVX2-x86-Debug/builds/2384/steps/test_skia%20on%20Windows-2008ServerR2-SP1/logs/stdio
https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Win-MSVC-ShuttleC-GPU-iHD530-x86_64-Debug/builds/785/steps/test_skia%20on%20Windows/logs/stdio

Original change's description:
> Add GrRenderTargetContext instantiate & asTextureProxy
> 
> This CL also centralizes the instantiation code in GrSurfaceProxy and adds a test.
> 
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4494
> 
> Change-Id: I0081d9a216dc0af293179f23bcb88acf6a822324
> Reviewed-on: https://skia-review.googlesource.com/4494
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Robert Phillips <robertphillips@google.com>
> 

TBR=bsalomon@google.com,robertphillips@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I225ce7867ebd445067e5ea55ebbfd587f7fe782a
Reviewed-on: https://skia-review.googlesource.com/4528
Commit-Queue: Leon Scroggins <scroggo@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
2016-11-07 21:26:46 +00:00
Robert Phillips
9113edfff8 Add GrRenderTargetContext instantiate & asTextureProxy
This CL also centralizes the instantiation code in GrSurfaceProxy and adds a test.

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4494

Change-Id: I0081d9a216dc0af293179f23bcb88acf6a822324
Reviewed-on: https://skia-review.googlesource.com/4494
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2016-11-07 20:28:13 +00:00
Ben Wagner
260d9b3152 Move SkChunkAlloc.h to include/private.
This class does not appear to have any external users, and Skia probably
does not want anyone depending on it. It also clutters up include/core
with an 'uninteresting' utility class.

Change-Id: I7de9468500ecffd0b722f222932e4f8b6637925b
Reviewed-on: https://skia-review.googlesource.com/4522
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2016-11-07 20:16:56 +00:00
Robert Phillips
84a812061f Add GrTextureRenderTargetProxy and support switching between RT & Tex Proxies
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4427

Change-Id: Ie7662299953592f564bb27a4df4ea101f743403e
Reviewed-on: https://skia-review.googlesource.com/4427
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2016-11-07 15:56:19 +00:00
Ben Wagner
145dbcd165 Remove SkAutoTDelete.
Replace with std::unique_ptr.

Change-Id: I5806cfbb30515fcb20e5e66ce13fb5f3b8728176
Reviewed-on: https://skia-review.googlesource.com/4381
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
2016-11-03 19:03:40 +00:00
Robert Phillips
29e52f13f6 Centralize computation of GrRenderTarget & GrTexture VRAM consumption
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4310

Change-Id: I676749ecf1e489f825799b619a15a45fc7dcd219
Reviewed-on: https://skia-review.googlesource.com/4310
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2016-11-03 16:44:50 +00:00
Ben Wagner
7ecc59610d Remove SkAutoTDeleteArray
This class is already just an alias for std::unique_ptr<T[]>, so replace
all uses with that and delete the class.

CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Debug-ASAN-Trybot,Test-Ubuntu-Clang-Golo-GPU-GT610-x86_64-Debug-ASAN-Trybot

Change-Id: I40668d398356a22da071ee791666c7f728b59266
Reviewed-on: https://skia-review.googlesource.com/4362
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
2016-11-02 21:30:38 +00:00
Robert Phillips
abacf0978f Update ProxyTests
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4306

Change-Id: I0753047eeda71a22b6126f932fc14dd242c5a2e7
Reviewed-on: https://skia-review.googlesource.com/4306
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2016-11-02 16:06:25 +00:00
Robert Phillips
8bc06d07f5 Back SkSpecialImage_Gpu with a GrTextureProxy
This is split out of https://codereview.chromium.org/2215323003/ (Start using RenderTargetProxy (omnibus))

The addition of the gpuMemorySize methods is for the SkSpecialImage cache.

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4227

Change-Id: Ia9b9d42fb2a0caf61bbfa3ebcc84308c56f541fc
Reviewed-on: https://skia-review.googlesource.com/4227
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2016-11-02 15:32:04 +00:00
Mike Reed
7d954ad797 remove xfermode from public api
BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4020

CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Change-Id: I19cd056f2af778f10e8c6c2b7b2735593b43dbac
Reviewed-on: https://skia-review.googlesource.com/4020
Reviewed-by: Florin Malita <fmalita@chromium.org>
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Reed <reed@google.com>
2016-10-28 20:06:17 +00:00
Robert Phillips
c7635fa374 Make GrDrawContext be GrRenderTargetProxy-backed
This is split out of https://codereview.chromium.org/2215323003/ (Start using RenderTargetProxy (omnibus))

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3841

CQ_INCLUDE_TRYBOTS=master.client.skia.android:Test-Android-Clang-Nexus5-GPU-Adreno330-arm-Debug-GN_Android-Trybot

Change-Id: I1a47f19ed1ac0c249e6ccac8db74095d7f456db4
Reviewed-on: https://skia-review.googlesource.com/3841
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
2016-10-28 18:35:06 +00:00
Brian Osman
1105224f97 Rename GrDrawContext to GrRenderTargetContext
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>
2016-10-27 19:14:09 +00:00
bungeman
6bd5284415 Remove SkAutoTUnref and SkAutoTDelete from public includes.
This also makes the required changed to src, tests, and tools. The few
public APIs modified by this change appear to be unused outside of Skia.

Removing these from the public API makes it easier to ensure users are
no longer using them.

This also updates GrGpu::wrapBackendXXX and the
::onWrapBackendXXX methods to clarify ownership.

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2448593002

Review-Url: https://codereview.chromium.org/2448593002
2016-10-27 09:30:08 -07:00
Robert Phillips
f2361d2d93 Add GrOpList and rename GrDrawTarget to GrRenderTargetOpList
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3910

Change-Id: I026aa26ecc61a0d002e98892dca728536259e8b1
Reviewed-on: https://skia-review.googlesource.com/3910
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2016-10-26 00:48:37 +00:00
Brian Osman
7c2114fc2f Cache GrColorSpaceXforms
Even with a modest cache, we're going to get nearly 100% hit rate
for typical usage scenarios. I'm hoping to avoid the special case
caching of sRGB -> destination, and just rely on the more general
mechanism.

Yes, this is yet-another cache class. I wanted to use one of many
that are laying around, but couldn't find a good fit. On the plus
side, it's not much code.

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3726

Change-Id: I943be5c99f0d691a87ffe8c5bc3067a8eb491fc2
Reviewed-on: https://skia-review.googlesource.com/3726
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
2016-10-20 20:47:33 +00:00
liyuqian
3f490cc642 Make SkFixedRound/Ceil/FloorToFixed as inline func
The macros that we were using will return unsigned int32 instead of
signed int32 because of the last 0xFFFF0000 mask. That may bring
problems if we right shift that result.

Special thanks to mtklein@google.com for helping me find out this issue.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2433233003

Review-Url: https://chromiumcodereview.appspot.com/2433233003
2016-10-20 11:23:10 -07:00
csmartdalton
421a3c1cc1 Move GPU fences into sk_gpu_test
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2383383002

Review-Url: https://codereview.chromium.org/2383383002
2016-10-04 11:08:45 -07:00
msarett
71df2d7bc1 Add a src rect to drawImageLattice() API
This will allow us to draw ninepatches directly from an asset
texture without having to upload them individually.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2382893002

Review-Url: https://codereview.chromium.org/2382893002
2016-09-30 12:41:42 -07:00
Mike Klein
1e114f1368 *SkTCast<int*>(float*) -> memcpy
In some build configurations (I think, GN, GCC 6, Debug) I get a warning that i is used unintialized.  This likely has something to do with GCC correctly seeing that the SkTCast construction there is illegal aliasing, and perhaps thus "doesn't happen".  Might be that if the SkTCast gets inlined, it decides its implementation is secretly kosher, and so Release builds don't see this.  None of this happens with the GCCs we have on the bots... too old?

Instead use memcpy() here, which is well defined to do what we intended.

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2758

Change-Id: Iaf5c75fbd852193b0b861bf5e71450502511d102
Reviewed-on: https://skia-review.googlesource.com/2758
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
2016-09-29 15:48:04 +00:00
Mike Klein
fc6c37b981 Remove stray semicolons.
Turns out function declarations don't end in semicolons...

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2720

No public API changes.
TBR=reed@google.com

Change-Id: I72b56d52e1ff7fa6e89c295b0de8c46599791ebb
Reviewed-on: https://skia-review.googlesource.com/2720
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
2016-09-27 14:04:26 +00:00
reed
73603f3c52 abstract name of clipping ops, to transtion to a more restricted set
SkRegion::Op --> SkCanvas::ClipOp (alias) --> SkClipOp

pre-CL needed in chrome : https://codereview.chromium.org/2355583002/

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2355483002

Review-Url: https://codereview.chromium.org/2355483002
2016-09-20 08:42:39 -07:00
csmartdalton
4b5179b74c skpbench
skpbench is a benchmarking suite for skps that aims to generate 100%
repeatable results. The initial commit consists of three parts:

skpbench

A minimalist program whose sole purpose is to open an skp file,
benchmark it on a single config, and exit. No tiling, looping, or
other fanciness is used; it just draws the skp whole into a size-
matched render target and syncs the GPU after each draw.

Limiting the entire process to a single config/skp pair helps to keep
the results repeatable.

skpbench.py

A wrapper to execute the skpbench binary with various configs and skps.
It also monitors the output in order to filter out and re-run results
with an unacceptable stddev.

In the future this script will lock down and monitor clocks and
temperatures.

parseskpbench.py

A utility for parsing skpbench output into a spreadsheet.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2341823002

Review-Url: https://codereview.chromium.org/2341823002
2016-09-19 11:03:58 -07:00
csmartdalton
bf4a8f90c8 Improve usage of window rectangles
* Skips non-AA diff rect elements and replaces them with window
  rectangles.
* Places window rectangles in the interiors of antialiased diff rects.
* Arranges two overlapping window rectangles in a plus shape inside of
  diff rounded rects.
* Enables window rectangles when clearing and generating clip masks.

GTX 960 perf result (with vs. without window rectangles):

                              glinst4                msaa16                 gpu
keymobi_pinterest.skp         0.48 -> 0.17 [ 35%]    2.77 -> 1.49 [ 54%]    0.22 -> 0.16 [ 70%]
keymobi_digg_com.skp          0.42 -> 0.23 [ 55%]    2.34 -> 1.08 [ 46%]    0.25 -> 0.21 [ 83%]
desk_jsfiddlebigcar.skp       0.28 -> 0.16 [ 59%]    1.70 -> 0.96 [ 57%]    0.19 -> 0.14 [ 70%]
top25desk_wordpress.skp       0.45 -> 0.18 [ 40%]    2.78 -> 1.53 [ 55%]    0.21 -> 0.19 [ 94%]
top25desk_weather_com.skp     2.01 -> 1.93 [ 96%]    23.5 -> 2.54 [ 11%]    1.90 -> 1.68 [ 88%]
keymobi_blogger.skp           0.57 -> 0.37 [ 65%]    2.87 -> 1.54 [ 54%]    0.43 -> 0.33 [ 77%]
keymobi_linkedin.skp          0.32 -> 0.17 [ 51%]    1.93 -> 1.04 [ 54%]    0.17 -> 0.15 [ 91%]
keymobi_bing_com_search_...   0.29 -> 0.25 [ 83%]    1.85 -> 1.23 [ 66%]    0.50 -> 0.24 [ 48%]
keymobi_theverge_com_201...   1.00 -> 0.67 [ 68%]    9.46 -> 3.84 [ 41%]    0.72 -> 0.65 [ 90%]
keymobi_sfgate_com_.skp       1.56 -> 1.13 [ 72%]    4.49 -> 2.86 [ 64%]    1.54 -> 1.11 [ 72%]
...
GEOMEAN (All 79 blink skps)   1.04 -> 0.90 [ 86%]    4.22 -> 2.81 [ 67%]    0.95 -> 0.89 [ 94%]

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2289363005

Committed: https://skia.googlesource.com/skia/+/db42be9a326c747ff92ed1da8c3536c5b3e8e22b
Review-Url: https://codereview.chromium.org/2289363005
2016-09-06 10:01:07 -07:00
caryclark
c3bfcb803a Revert of Improve usage of window rectangles (patchset #9 id:160001 of https://codereview.chromium.org/2289363005/ )
Reason for revert:
broke build. See

https://build.chromium.org/p/client.skia/builders/Perf-Win8-MSVC-ShuttleA-GPU-GTX960-x86_64-Debug/builds/186

Original issue's description:
> Improve usage of window rectangles
>
> * Skips non-AA diff rect elements and replaces them with window
>   rectangles.
> * Places window rectangles in the interiors of antialiased diff rects.
> * Arranges two overlapping window rectangles in a plus shape inside of
>   diff rounded rects.
> * Enables window rectangles when clearing and generating clip masks.
>
> GTX 960 perf result (with vs. without window rectangles):
>
>                               glinst4                msaa16                 gpu
> keymobi_pinterest.skp         0.48 -> 0.17 [ 35%]    2.77 -> 1.49 [ 54%]    0.22 -> 0.16 [ 70%]
> keymobi_digg_com.skp          0.42 -> 0.23 [ 55%]    2.34 -> 1.08 [ 46%]    0.25 -> 0.21 [ 83%]
> desk_jsfiddlebigcar.skp       0.28 -> 0.16 [ 59%]    1.70 -> 0.96 [ 57%]    0.19 -> 0.14 [ 70%]
> top25desk_wordpress.skp       0.45 -> 0.18 [ 40%]    2.78 -> 1.53 [ 55%]    0.21 -> 0.19 [ 94%]
> top25desk_weather_com.skp     2.01 -> 1.93 [ 96%]    23.5 -> 2.54 [ 11%]    1.90 -> 1.68 [ 88%]
> keymobi_blogger.skp           0.57 -> 0.37 [ 65%]    2.87 -> 1.54 [ 54%]    0.43 -> 0.33 [ 77%]
> keymobi_linkedin.skp          0.32 -> 0.17 [ 51%]    1.93 -> 1.04 [ 54%]    0.17 -> 0.15 [ 91%]
> keymobi_bing_com_search_...   0.29 -> 0.25 [ 83%]    1.85 -> 1.23 [ 66%]    0.50 -> 0.24 [ 48%]
> keymobi_theverge_com_201...   1.00 -> 0.67 [ 68%]    9.46 -> 3.84 [ 41%]    0.72 -> 0.65 [ 90%]
> keymobi_sfgate_com_.skp       1.56 -> 1.13 [ 72%]    4.49 -> 2.86 [ 64%]    1.54 -> 1.11 [ 72%]
> keymobi_ftw_usatoday_com...   0.59 -> 0.34 [ 57%]    2.80 -> 1.54 [ 55%]    1.21 -> 1.20 [ 99%]
> keymobi_shop_mobileweb_e...   0.46 -> 0.32 [ 70%]    2.60 -> 1.26 [ 48%]    0.35 -> 0.34 [ 97%]
> keymobi_cnn_com.skp           0.68 -> 0.42 [ 63%]    3.40 -> 2.10 [ 62%]    0.49 -> 0.45 [ 93%]
> keymobi_plus_google_com_...   0.77 -> 0.46 [ 60%]    4.83 -> 3.56 [ 74%]    0.52 -> 0.46 [ 89%]
> keymobi_wordpress.skp         0.50 -> 0.40 [ 81%]    2.60 -> 1.31 [ 50%]    0.40 -> 0.37 [ 91%]
> keymobi_androidpolice_co...   0.84 -> 0.73 [ 87%]    4.15 -> 2.05 [ 49%]    0.77 -> 0.67 [ 87%]
> keymobi_online_wsj_com_h...   0.55 -> 0.43 [ 78%]    2.91 -> 1.66 [ 57%]    0.45 -> 0.41 [ 90%]
> keymobi_iphone_capitolvo...   1.18 -> 0.96 [ 81%]    6.26 -> 4.96 [ 79%]    0.95 -> 0.92 [ 97%]
> keymobi_wikipedia__1_tab...   0.46 -> 0.41 [ 89%]    2.51 -> 1.24 [ 49%]    0.40 -> 0.38 [ 95%]
> keymobi_wikipedia__1_tab...   0.46 -> 0.42 [ 90%]    2.52 -> 1.25 [ 50%]    0.40 -> 0.38 [ 96%]
> keymobi_boingboing_net.skp    0.62 -> 0.56 [ 90%]    3.15 -> 1.80 [ 57%]    0.61 -> 0.56 [ 92%]
> keymobi_cnn_com_2012_10_...   0.86 -> 0.82 [ 95%]    2.81 -> 1.50 [ 53%]    0.91 -> 0.83 [ 91%]
> top25desk_techcrunch_com...   0.61 -> 0.56 [ 92%]    3.03 -> 1.76 [ 58%]    0.62 -> 0.56 [ 91%]
> top25desk_ebay_com.skp        1.18 -> 1.08 [ 92%]    2.23 -> 1.24 [ 56%]    1.14 -> 1.09 [ 96%]
> desk_css3gradients.skp        0.64 -> 0.61 [ 95%]    2.99 -> 1.54 [ 52%]    0.62 -> 0.61 [ 99%]
> top25desk_blogger.skp         0.61 -> 0.59 [ 96%]    2.50 -> 1.37 [ 55%]    0.60 -> 0.57 [ 95%]
> keymobi_nytimes_com_.skp      0.65 -> 0.64 [ 98%]    2.69 -> 1.42 [ 53%]    0.62 -> 0.59 [ 96%]
> keymobi_wowwiki_com_worl...   0.99 -> 0.92 [ 92%]    3.46 -> 2.06 [ 60%]    0.98 -> 0.95 [ 96%]
> keymobi_cuteoverload_com...   1.37 -> 1.26 [ 92%]    3.24 -> 2.45 [ 76%]    1.38 -> 1.35 [ 98%]
> keymobi_mobile_news_sand...   0.88 -> 0.81 [ 93%]    3.50 -> 2.07 [ 59%]    0.82 -> 0.81 [100%]
> top25desk_linkedin.skp        0.87 -> 0.87 [100%]    2.92 -> 1.73 [ 59%]    0.94 -> 0.86 [ 91%]
> top25desk_docs___1_open_...   1.43 -> 1.36 [ 95%]    1.87 -> 1.42 [ 76%]    0.73 -> 0.66 [ 91%]
> keymobi_reddit_com_r_pro...   0.68 -> 0.66 [ 96%]    2.49 -> 1.23 [ 49%]    0.65 -> 0.66 [102%]
> ...
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2289363005
>
> Committed: https://skia.googlesource.com/skia/+/db42be9a326c747ff92ed1da8c3536c5b3e8e22b

TBR=bsalomon@google.com,egdaniel@google.com,robertphillips@google.com,csmartdalton@google.com
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=skia:

Review-Url: https://codereview.chromium.org/2312173002
2016-09-06 07:09:54 -07:00
csmartdalton
db42be9a32 Improve usage of window rectangles
* Skips non-AA diff rect elements and replaces them with window
  rectangles.
* Places window rectangles in the interiors of antialiased diff rects.
* Arranges two overlapping window rectangles in a plus shape inside of
  diff rounded rects.
* Enables window rectangles when clearing and generating clip masks.

GTX 960 perf result (with vs. without window rectangles):

                              glinst4                msaa16                 gpu
keymobi_pinterest.skp         0.48 -> 0.17 [ 35%]    2.77 -> 1.49 [ 54%]    0.22 -> 0.16 [ 70%]
keymobi_digg_com.skp          0.42 -> 0.23 [ 55%]    2.34 -> 1.08 [ 46%]    0.25 -> 0.21 [ 83%]
desk_jsfiddlebigcar.skp       0.28 -> 0.16 [ 59%]    1.70 -> 0.96 [ 57%]    0.19 -> 0.14 [ 70%]
top25desk_wordpress.skp       0.45 -> 0.18 [ 40%]    2.78 -> 1.53 [ 55%]    0.21 -> 0.19 [ 94%]
top25desk_weather_com.skp     2.01 -> 1.93 [ 96%]    23.5 -> 2.54 [ 11%]    1.90 -> 1.68 [ 88%]
keymobi_blogger.skp           0.57 -> 0.37 [ 65%]    2.87 -> 1.54 [ 54%]    0.43 -> 0.33 [ 77%]
keymobi_linkedin.skp          0.32 -> 0.17 [ 51%]    1.93 -> 1.04 [ 54%]    0.17 -> 0.15 [ 91%]
keymobi_bing_com_search_...   0.29 -> 0.25 [ 83%]    1.85 -> 1.23 [ 66%]    0.50 -> 0.24 [ 48%]
keymobi_theverge_com_201...   1.00 -> 0.67 [ 68%]    9.46 -> 3.84 [ 41%]    0.72 -> 0.65 [ 90%]
keymobi_sfgate_com_.skp       1.56 -> 1.13 [ 72%]    4.49 -> 2.86 [ 64%]    1.54 -> 1.11 [ 72%]
keymobi_ftw_usatoday_com...   0.59 -> 0.34 [ 57%]    2.80 -> 1.54 [ 55%]    1.21 -> 1.20 [ 99%]
keymobi_shop_mobileweb_e...   0.46 -> 0.32 [ 70%]    2.60 -> 1.26 [ 48%]    0.35 -> 0.34 [ 97%]
keymobi_cnn_com.skp           0.68 -> 0.42 [ 63%]    3.40 -> 2.10 [ 62%]    0.49 -> 0.45 [ 93%]
keymobi_plus_google_com_...   0.77 -> 0.46 [ 60%]    4.83 -> 3.56 [ 74%]    0.52 -> 0.46 [ 89%]
keymobi_wordpress.skp         0.50 -> 0.40 [ 81%]    2.60 -> 1.31 [ 50%]    0.40 -> 0.37 [ 91%]
keymobi_androidpolice_co...   0.84 -> 0.73 [ 87%]    4.15 -> 2.05 [ 49%]    0.77 -> 0.67 [ 87%]
keymobi_online_wsj_com_h...   0.55 -> 0.43 [ 78%]    2.91 -> 1.66 [ 57%]    0.45 -> 0.41 [ 90%]
keymobi_iphone_capitolvo...   1.18 -> 0.96 [ 81%]    6.26 -> 4.96 [ 79%]    0.95 -> 0.92 [ 97%]
keymobi_wikipedia__1_tab...   0.46 -> 0.41 [ 89%]    2.51 -> 1.24 [ 49%]    0.40 -> 0.38 [ 95%]
keymobi_wikipedia__1_tab...   0.46 -> 0.42 [ 90%]    2.52 -> 1.25 [ 50%]    0.40 -> 0.38 [ 96%]
keymobi_boingboing_net.skp    0.62 -> 0.56 [ 90%]    3.15 -> 1.80 [ 57%]    0.61 -> 0.56 [ 92%]
keymobi_cnn_com_2012_10_...   0.86 -> 0.82 [ 95%]    2.81 -> 1.50 [ 53%]    0.91 -> 0.83 [ 91%]
top25desk_techcrunch_com...   0.61 -> 0.56 [ 92%]    3.03 -> 1.76 [ 58%]    0.62 -> 0.56 [ 91%]
top25desk_ebay_com.skp        1.18 -> 1.08 [ 92%]    2.23 -> 1.24 [ 56%]    1.14 -> 1.09 [ 96%]
desk_css3gradients.skp        0.64 -> 0.61 [ 95%]    2.99 -> 1.54 [ 52%]    0.62 -> 0.61 [ 99%]
top25desk_blogger.skp         0.61 -> 0.59 [ 96%]    2.50 -> 1.37 [ 55%]    0.60 -> 0.57 [ 95%]
keymobi_nytimes_com_.skp      0.65 -> 0.64 [ 98%]    2.69 -> 1.42 [ 53%]    0.62 -> 0.59 [ 96%]
keymobi_wowwiki_com_worl...   0.99 -> 0.92 [ 92%]    3.46 -> 2.06 [ 60%]    0.98 -> 0.95 [ 96%]
keymobi_cuteoverload_com...   1.37 -> 1.26 [ 92%]    3.24 -> 2.45 [ 76%]    1.38 -> 1.35 [ 98%]
keymobi_mobile_news_sand...   0.88 -> 0.81 [ 93%]    3.50 -> 2.07 [ 59%]    0.82 -> 0.81 [100%]
top25desk_linkedin.skp        0.87 -> 0.87 [100%]    2.92 -> 1.73 [ 59%]    0.94 -> 0.86 [ 91%]
top25desk_docs___1_open_...   1.43 -> 1.36 [ 95%]    1.87 -> 1.42 [ 76%]    0.73 -> 0.66 [ 91%]
keymobi_reddit_com_r_pro...   0.68 -> 0.66 [ 96%]    2.49 -> 1.23 [ 49%]    0.65 -> 0.66 [102%]
...

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2289363005

Review-Url: https://codereview.chromium.org/2289363005
2016-09-02 11:36:25 -07:00
msarett
0764efe6a9 Add option to skip rects to drawImageLattice()
HWUI skips transparent rects when drawing.

When skia draws using bilerp, we will blend
transparent rects with neighboring rects and might
draw a bit of a smudge.

This CL adds the option to skip rects, allowing us
to have compatible behavior with the framework.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2305433002

Review-Url: https://codereview.chromium.org/2305433002
2016-09-02 11:24:30 -07:00
robertphillips
13a7eee250 Flush some non-substantive Ganesh changes
Split out of: https://codereview.chromium.org/2215323003/ (Start using RenderTargetProxy (omnibus))

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2299523004

Review-Url: https://codereview.chromium.org/2299523004
2016-08-31 15:06:24 -07:00
robertphillips
8abb370aca Have GrSurfaceProxys and GrGpuResources draw from the same pool of unique ids
The idea here is that, for wrapped Proxy objects, we want the uniqueID to reflect that of the wrapped object. For this to work the IDs for the non-wrapped versions can't conflict with GrGpuResource's pool of IDs.

Split off of: https://codereview.chromium.org/2215323003/ (Start using RenderTargetProxy (omnibus))

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2301523003

Review-Url: https://codereview.chromium.org/2301523003
2016-08-31 14:04:06 -07:00
reed
22b2af1dc4 dedup images/blobs/pictures by ID in old serialization format
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2289783002

Review-Url: https://codereview.chromium.org/2289783002
2016-08-29 07:52:13 -07:00
msarett
44df651ebe Add drawRegion() API to SkCanvas
This will allow us to optimize for the RectGrid macrobench.
Currently, SkiaGL is much slower than OpenGL.
SkiaGL  12 items/s
OpenGL 160 items/s

This contains everything except for the fast implementation on GPU.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2277053002

Review-Url: https://codereview.chromium.org/2277053002
2016-08-25 13:54:30 -07:00
vjiaoblack
e6f5d56231 Made shadows blurry (thru implementing variance mapping)
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2224163005

Review-Url: https://codereview.chromium.org/2224163005
2016-08-25 06:30:23 -07:00
ajuma
95243ebb68 Make GrTextureStripAtlas flush pending IO on newly acquired texture
GrTextureStripAtlas uses its own lock counts to protect against
overwriting its own earlier writes, but that doesn't protect against
IO that was pending when a texture was first acquired.

BUG=chromium:637678
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2262233002

Review-Url: https://codereview.chromium.org/2262233002
2016-08-24 08:19:03 -07:00
bsalomon
ac3aa245ac Plumb drawArc to SkDevice.
Plumbs the drawArc canvas method down to SkDevice without converting to a path. Plumbs through the various recording canvas classes.

BUG=skia:5227
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2257023003

Review-Url: https://codereview.chromium.org/2257023003
2016-08-19 11:25:20 -07:00
mtklein
cbdf007bc2 Fast path translate() in SkCanvas and SkLiteDL.
This adds didTranslate() so that SkLiteDL (and other canvas recorders)
can record the translate rather than the full concat.

It also adds a case to SkMatrix::preTranslate() to fast path
translate x translate -> translate (i.e. +=).

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2255283002

Committed: https://skia.googlesource.com/skia/+/5fa47f4fd13b3158de4599414c86d17649c2dd1c

Misc bots failing in pictureimagefilter replay modes.
https://luci-milo.appspot.com/swarming/task/30b8e53f3a1f4f10/steps/dm/0/stdout

Problem is FMA vs. not.

CQ_INCLUDE_TRYBOTS=master.client.skia:
Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-Fast-Trybot

Review-Url: https://codereview.chromium.org/2255283002
2016-08-19 09:05:27 -07:00
msarett
10e3d9bf59 Batched implementation of drawLattice() for GPU
Bechmarks (Nexus 6P):

Src=100x100, Dst=250x250, NumRects=9
Android              77.7us
Skia (without patch) 57.2us
Skia (with patch)    30.9us

Src=100x100, Dst=500x500, NumRects=9
Android              77.0us
Skia (without patch) 56.9us
Skia (with patch)    31.8us

Src=100x100, Dst=1000x1000, NumRects=9
Android              180us
Skia (without patch) 96.8us
Skia (with patch)    70.5us

Src=100x100, Dst=250x250, NumRects=15
Android              208us
Skia (without patch) 155us
Skia (with patch)    38.2us

Src=100x100, Dst=500x500, NumRects=15
Android              207us
Skia (without patch) 152us
Skia (with patch)    38.4us

Src=100x100, Dst=1000x1000, NumRects=15
Android              233us
Skia (without patch) 156us
Skia (with patch)    99.9us

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2255963002

Committed: https://skia.googlesource.com/skia/+/93242c4ae50dfcc0d922cdb3ba80bbc7b4bbe93d
Review-Url: https://codereview.chromium.org/2255963002
2016-08-18 15:46:03 -07:00
msarett
7fc08585d0 Revert of Batched implementation of drawLattice() for GPU (patchset #7 id:180001 of https://codereview.chromium.org/2255963002/ )
Reason for revert:
Things drawing weird.

Original issue's description:
> Batched implementation of drawLattice() for GPU
>
> Bechmarks (Nexus 6P):
>
> Src=100x100, Dst=250x250, NumRects=9
> Android              77.7us
> Skia (without patch) 57.2us
> Skia (with patch)    34.7us
>
> Src=100x100, Dst=500x500, NumRects=9
> Android              77.0us
> Skia (without patch) 56.9us
> Skia (with patch)    44.5us
>
> Src=100x100, Dst=1000x1000, NumRects=9
> Android              180us
> Skia (without patch) 96.8us
> Skia (with patch)    70.5us
>
> Src=100x100, Dst=250x250, NumRects=15
> Android              208us
> Skia (without patch) 155us
> Skia (with patch)    55.9us
>
> Src=100x100, Dst=500x500, NumRects=15
> Android              207us
> Skia (without patch) 152us
> Skia (with patch)    63.0us
>
> Src=100x100, Dst=1000x1000, NumRects=15
> Android              233us
> Skia (without patch) 156us
> Skia (with patch)    99.9us
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2255963002
>
> Committed: https://skia.googlesource.com/skia/+/93242c4ae50dfcc0d922cdb3ba80bbc7b4bbe93d

TBR=bsalomon@google.com,reed@google.com,djsollen@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review-Url: https://codereview.chromium.org/2255683004
2016-08-18 14:29:22 -07:00
msarett
93242c4ae5 Batched implementation of drawLattice() for GPU
Bechmarks (Nexus 6P):

Src=100x100, Dst=250x250, NumRects=9
Android              77.7us
Skia (without patch) 57.2us
Skia (with patch)    34.7us

Src=100x100, Dst=500x500, NumRects=9
Android              77.0us
Skia (without patch) 56.9us
Skia (with patch)    44.5us

Src=100x100, Dst=1000x1000, NumRects=9
Android              180us
Skia (without patch) 96.8us
Skia (with patch)    70.5us

Src=100x100, Dst=250x250, NumRects=15
Android              208us
Skia (without patch) 155us
Skia (with patch)    55.9us

Src=100x100, Dst=500x500, NumRects=15
Android              207us
Skia (without patch) 152us
Skia (with patch)    63.0us

Src=100x100, Dst=1000x1000, NumRects=15
Android              233us
Skia (without patch) 156us
Skia (with patch)    99.9us

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2255963002

Review-Url: https://codereview.chromium.org/2255963002
2016-08-18 13:11:48 -07:00
halcanary
3287588a46 SkPDF: SkPDFFont class changes
SkPDFFont:
  * inline some one-line methdods.
      - SkPDFFont::typeface()
      - SkPDFFont::fontInfo()
      - SkPDFFont::firstGlyphID()
      - SkPDFFont::lastGlyphID()
      - SkPDFFont::getFontDescriptor()
  * de-virtualize some methods:
      - SkPDFFont::getType()
      - SkPDFFont::multiByteGlyphs()
  * Constructor takes more arguments:
    fontType, multiByteGlyphs
  * re-order fields (pointers before shorts)
  * use sk_sp<T> more, T* less

SkAdvancedTypefaceMetrics:
  * SkAdvancedTypefaceMetrics::fFont now a uint8_t
  * other enumes are sized.
  * SkAdvancedTypefaceMetrics::fStyle now big enough.
  * remove use of SkTBitOr, replaced with fancy templates

No public API changes.
TBR=reed@google.com

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2246903002

Review-Url: https://codereview.chromium.org/2246903002
2016-08-16 09:36:23 -07:00
csmartdalton
f9635999a4 Add flag for window rectangles to GrRenderTarget
Adds a flag to GrRenderTarget that indicates whether it can be used
with window rectangles. Also attempts to clean up some of the mixed
samples API.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2225303002

Review-Url: https://codereview.chromium.org/2225303002
2016-08-10 11:09:07 -07:00
mtklein
3ff2cc81a5 constexpr NaN,+Inf,-Inf
Reading extern values meant these couldn't be compile-time constants.

math.h has INFINITY, which is macro that is supposed to expand to float +inf.
On MSVC it seems it's natively a double, so we cast just to make sure.

There's nan(const char*) in math.h for NaN too, but I don't trust that
to be compile-time evaluated.  So instead, we keep reinterpreting a bit pattern.

I did try to write

    static constexpr float float_nan() { ... }

and completely failed.  constexpr seems a bit too restrictive in C++11 to make
it work, but Clang kept telling me, you'll be able to do this with C++14.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2233853002

Review-Url: https://codereview.chromium.org/2233853002
2016-08-10 08:31:42 -07:00