Commit Graph

366 Commits

Author SHA1 Message Date
senorblanco
0abdf766d3 Reland of Implement canComputeFastBounds() for image filters. (patchset #1 id:1 of https://codereview.chromium.org/1300403003/ )
Reason for revert:
The Mac compile issue was fixed here: fdd331a42a

Original issue's description:
> Revert of Implement canComputeFastBounds() for image filters. (patchset #8 id:130001 of https://codereview.chromium.org/1296943002/ )
>
> Reason for revert:
> This causes a syntax error.
>
> http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_compile_dbg_ng/builds/87819/steps/compile%20%28with%20patch%29/logs/stdio
>
> Original issue's description:
> > Implement canComputeFastBounds() for image filters.
> >
> > Image filters have never implemented this check, which means that
> > filters which affect transparent black falsely claim they can compute
> > their bounds.
> >
> > Implemented an affectsTransparentBlack() virtual for image
> > filters, and a similar helper function for color filters.
> >
> > This will affect the following GMs: imagefiltersscaled
> > (lighting, perlin noise now filter to clip),
> > colorfilterimagefilter (new test case), imagefiltersclipped
> > (perlin noise now filters to clip).
> >
> > Note: I de-inlined SkPaint::canComputeFastBounds() to avoid adding
> > a dependency from SkPaint.h to SkImageFilter.h.h. Skia benches show
> > no impact from this change, but will watch the perf bots carefully.
> >
> > BUG=4212
> >
> > Committed: https://skia.googlesource.com/skia/+/915881fe743f9a789037695f543bc6ea189cd0cb
>
> TBR=reed@google.com,senorblanco@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=4212
>
> Committed: https://skia.googlesource.com/skia/+/12d8472d31ea5edb636d7d5214db253570115c40

TBR=reed@google.com,herb@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=4212

Review URL: https://codereview.chromium.org/1301823005
2015-08-20 11:10:41 -07:00
herb
12d8472d31 Revert of Implement canComputeFastBounds() for image filters. (patchset #8 id:130001 of https://codereview.chromium.org/1296943002/ )
Reason for revert:
This causes a syntax error.

http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_compile_dbg_ng/builds/87819/steps/compile%20%28with%20patch%29/logs/stdio

Original issue's description:
> Implement canComputeFastBounds() for image filters.
>
> Image filters have never implemented this check, which means that
> filters which affect transparent black falsely claim they can compute
> their bounds.
>
> Implemented an affectsTransparentBlack() virtual for image
> filters, and a similar helper function for color filters.
>
> This will affect the following GMs: imagefiltersscaled
> (lighting, perlin noise now filter to clip),
> colorfilterimagefilter (new test case), imagefiltersclipped
> (perlin noise now filters to clip).
>
> Note: I de-inlined SkPaint::canComputeFastBounds() to avoid adding
> a dependency from SkPaint.h to SkImageFilter.h.h. Skia benches show
> no impact from this change, but will watch the perf bots carefully.
>
> BUG=4212
>
> Committed: https://skia.googlesource.com/skia/+/915881fe743f9a789037695f543bc6ea189cd0cb

TBR=reed@google.com,senorblanco@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=4212

Review URL: https://codereview.chromium.org/1300403003
2015-08-20 09:28:45 -07:00
senorblanco
915881fe74 Implement canComputeFastBounds() for image filters.
Image filters have never implemented this check, which means that
filters which affect transparent black falsely claim they can compute
their bounds.

Implemented an affectsTransparentBlack() virtual for image
filters, and a similar helper function for color filters.

This will affect the following GMs: imagefiltersscaled
(lighting, perlin noise now filter to clip),
colorfilterimagefilter (new test case), imagefiltersclipped
(perlin noise now filters to clip).

Note: I de-inlined SkPaint::canComputeFastBounds() to avoid adding
a dependency from SkPaint.h to SkImageFilter.h.h. Skia benches show
no impact from this change, but will watch the perf bots carefully.

BUG=4212

Review URL: https://codereview.chromium.org/1296943002
2015-08-20 07:42:11 -07:00
robertphillips
2f0dbc761a Update SkLightingShader to support rotation
This also:
makes the SkLightingShader handle normal maps where the rects aren't aligned between the diffuse and normal maps.

adds a light aggregating class (Lights) to SkLightingShader (along with a Builder nested class).

Split out of https://codereview.chromium.org/1261433009/ (Add SkCanvas::drawLitAtlas call)

Committed: https://skia.googlesource.com/skia/+/45b59ed6e4e231814dbdb9f707b3d2a7ee50de84

Review URL: https://codereview.chromium.org/1291783003
2015-08-20 05:15:07 -07:00
mtklein
d1c6b7c500 SkColorCubeFilter: require alpha == 0xFF.
This is about a 12% improvement on my desktop, from 134 to 118ms on our bench.

BUG=skia:

Review URL: https://codereview.chromium.org/1295873004
2015-08-19 18:56:50 -07:00
robertphillips
f7d602a458 Revert "Update SkLightingShader to support rotation"
This reverts commit 45b59ed6e4.

TBR=herb@google.com

Review URL: https://codereview.chromium.org/1304673002
2015-08-19 13:11:23 -07:00
robertphillips
45b59ed6e4 Update SkLightingShader to support rotation
This also:
makes the SkLightingShader handle normal maps where the rects aren't aligned between the diffuse and normal maps.

adds a light aggregating class (Lights) to SkLightingShader (along with a Builder nested class).

Split out of https://codereview.chromium.org/1261433009/ (Add SkCanvas::drawLitAtlas call)

Review URL: https://codereview.chromium.org/1291783003
2015-08-19 10:35:14 -07:00
robertphillips
d0cf9d831f Remove SK_LEGACY_SKPOINT3_CTORS flag
Cannot land before Blink https://codereview.chromium.org/1274673002/ (Remove reliance on legacy Skia SkPoint3 ctors in FELighting.cpp)

Review URL: https://codereview.chromium.org/1269383003
2015-08-06 07:08:31 -07:00
robertphillips
a9652ac09e Address some SkLightingShader TODOs
This CL:
  switches the light colors to be 3 scalars (SkColor3f)
  adds some dox

Review URL: https://codereview.chromium.org/1265983003
2015-07-31 05:17:24 -07:00
robertphillips
3d32d768cd Add new SkPoint3 class
The existing Light filter and the upcoming Lighting Shader both need a Point3 class

Review URL: https://codereview.chromium.org/1229693009
2015-07-13 13:16:44 -07:00
joshualitt
9cc1775e72 rename GrShaderDataManager -> GrProcessorDataManager
BUG=skia:

Review URL: https://codereview.chromium.org/1228683002
2015-07-09 06:28:14 -07:00
joshualitt
85ff25e8d9 Thread GrShaderDataManager through Image filters
TBR=bsalomon@google.com
BUG=skia:

Review URL: https://codereview.chromium.org/1229613002
2015-07-08 09:10:03 -07:00
joshualitt
2cff176fa2 More threading of GrShaderDataManager
TBR=bsalomon@google.com
BUG=skia:

Review URL: https://codereview.chromium.org/1213613016
2015-07-08 07:58:18 -07:00
joshualitt
8ca93e7c73 Initial CL to create dummy GrShaderDataManager and thread it through
TBR=bsalomon@google.com
BUG=skia:

Review URL: https://codereview.chromium.org/1225673007
2015-07-08 06:51:43 -07:00
robertphillips
31dc1b2db0 style nit cleanups. e.g. remove 'virtual' on override declarations
Review URL: https://codereview.chromium.org/1216433005
2015-07-07 10:05:18 -07:00
mtklein
2766c00fc0 remove SkInstCnt
It's been outclassed by Valgrind and leak sanitizer,
and it seems to be causing problems for external folks building Skia.

I'm not sure why our own builds seem unaffected.

Latest thread:
https://groups.google.com/forum/#!topic/skia-discuss/oj9FsQwwSF0

BUG=skia:

Review URL: https://codereview.chromium.org/1217573002
2015-06-26 11:45:03 -07:00
reed
af4b233d46 remove SK_SUPPORT_LEGACY_FILTERLEVEL_ENUM
BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/1205803002
2015-06-23 21:47:30 -07:00
robertphillips
efbffedd68 Clean up usage of SkSurfaceProps
This CL continues cleaning up Skia's usage of SkSurfaceProps. It:

  Removes the duplicate SkSurfaceProps object from SkImageFilter::Proxy.

  Removes a dispreferred ctor from SkCanvas

  Removes the initForRootLayer entry point from SkDevice (since the root device and the canvas should always have the same pixel geometry now).

Review URL: https://codereview.chromium.org/1201983006
2015-06-22 12:06:08 -07:00
robertphillips
c3176aa5e5 Fix dst bound reported by SkTileImageFilter
In the example from the bug we had the filter DAG:

color filter (table)
    0: xfermode filter (arith)
        0: tile filter [0,80,34,114] -> [0,80,800,480]
             0: color filter (table)
                 0: bitmap src 34x34 -> [0,80,34,114]
        1: color filter (table)
             0: picture filter [0, 80, 800, 480]

computeFastBounds was coming out of the DAG with a bound of [0,80,34,114] which didn't represent the pixels that would be drawn.

This CL updates SkTileImageFilter to correctly set the bound for the pixels it will hit.

BUG=493783

Committed: https://skia.googlesource.com/skia/+/05be93bbdf09576f7903130e3b106b0a8c7c4b4e

Committed: https://skia.googlesource.com/skia/+/0be685755f942baea26c66a87226b569fc17e960

Review URL: https://codereview.chromium.org/1152553006
2015-06-16 09:44:56 -07:00
reed
7147cc1500 retro add copyright
BUG=skia:
NOTRY=True
TBR=

Review URL: https://codereview.chromium.org/1183463002
2015-06-11 08:03:32 -07:00
robertphillips
63195181d1 Add bigtileimagefilter GM & improvements to toString
This is all the ancillary code from https://codereview.chromium.org/1152553006/ (Fix dst bound reported by SkTileImageFilter).

TBR=reed@google.com, senorblanco@google.com

Review URL: https://codereview.chromium.org/1169713003
2015-06-08 06:21:14 -07:00
reed
56263c78d8 delete (unused) TransparentShader
BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/1153193014
2015-06-05 11:31:26 -07:00
robertphillips
270fe6aad5 Revert of Fix dst bound reported by SkTileImageFilter (patchset #3 id:40001 of https://codereview.chromium.org/1152553006/)
Reason for revert:
Blink

Original issue's description:
> Fix dst bound reported by SkTileImageFilter
>
> In the example from the bug we had the filter DAG:
>
> color filter (table)
>     0: xfermode filter (arith)
>         0: tile filter [0,80,34,114] -> [0,80,800,480]
>              0: color filter (table)
>                  0: bitmap src 34x34 -> [0,80,34,114]
>         1: color filter (table)
>              0: picture filter [0, 80, 800, 480]
>
> computeFastBounds was coming out of the DAG with a bound of [0,80,34,114] which didn't represent the pixels that would be drawn.
>
> This CL updates SkTileImageFilter to correctly set the bound for the pixels it will hit.
>
> BUG=493783
>
> Committed: https://skia.googlesource.com/skia/+/05be93bbdf09576f7903130e3b106b0a8c7c4b4e
>
> Committed: https://skia.googlesource.com/skia/+/0be685755f942baea26c66a87226b569fc17e960

TBR=reed@google.com,senorblanco@google.com,senorblanco@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=493783

Review URL: https://codereview.chromium.org/1156583004
2015-06-04 11:15:27 -07:00
robertphillips
0be685755f Fix dst bound reported by SkTileImageFilter
In the example from the bug we had the filter DAG:

color filter (table)
    0: xfermode filter (arith)
        0: tile filter [0,80,34,114] -> [0,80,800,480]
             0: color filter (table)
                 0: bitmap src 34x34 -> [0,80,34,114]
        1: color filter (table)
             0: picture filter [0, 80, 800, 480]

computeFastBounds was coming out of the DAG with a bound of [0,80,34,114] which didn't represent the pixels that would be drawn.

This CL updates SkTileImageFilter to correctly set the bound for the pixels it will hit.

BUG=493783

Committed: https://skia.googlesource.com/skia/+/05be93bbdf09576f7903130e3b106b0a8c7c4b4e

Review URL: https://codereview.chromium.org/1152553006
2015-06-04 06:53:37 -07:00
robertphillips
a66cc7e1e0 Revert of Fix dst bound reported by SkTileImageFilter (patchset #3 id:40001 of https://codereview.chromium.org/1152553006/)
Reason for revert:
breaking tests

Original issue's description:
> Fix dst bound reported by SkTileImageFilter
>
> In the example from the bug we had the filter DAG:
>
> color filter (table)
>     0: xfermode filter (arith)
>         0: tile filter [0,80,34,114] -> [0,80,800,480]
>              0: color filter (table)
>                  0: bitmap src 34x34 -> [0,80,34,114]
>         1: color filter (table)
>              0: picture filter [0, 80, 800, 480]
>
> computeFastBounds was coming out of the DAG with a bound of [0,80,34,114] which didn't represent the pixels that would be drawn.
>
> This CL updates SkTileImageFilter to correctly set the bound for the pixels it will hit.
>
> BUG=493783
>
> Committed: https://skia.googlesource.com/skia/+/05be93bbdf09576f7903130e3b106b0a8c7c4b4e

TBR=reed@google.com,senorblanco@google.com,senorblanco@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=493783

Review URL: https://codereview.chromium.org/1143083006
2015-06-02 10:57:26 -07:00
robertphillips
05be93bbdf Fix dst bound reported by SkTileImageFilter
In the example from the bug we had the filter DAG:

color filter (table)
    0: xfermode filter (arith)
        0: tile filter [0,80,34,114] -> [0,80,800,480]
             0: color filter (table)
                 0: bitmap src 34x34 -> [0,80,34,114]
        1: color filter (table)
             0: picture filter [0, 80, 800, 480]

computeFastBounds was coming out of the DAG with a bound of [0,80,34,114] which didn't represent the pixels that would be drawn.

This CL updates SkTileImageFilter to correctly set the bound for the pixels it will hit.

BUG=493783

Review URL: https://codereview.chromium.org/1152553006
2015-06-02 10:52:43 -07:00
reed
71a6cbfc58 remove redundant/deprecated TwoPointRadial gradiet -- use TwoPointConical
This CL derived from https://codereview.chromium.org/1114243005/

BUG=skia:

Review URL: https://codereview.chromium.org/1117423003
2015-05-04 08:32:51 -07:00
jvanverth
cfc18867d9 Use GLSLCaps for creating processor keys and GLSL-specific programs
Effectively all this does is future-proof any GLSL-specific code, as
GLSLCaps is just a typedef of GLCaps.

BUG=skia:

Review URL: https://codereview.chromium.org/1109863004
2015-04-28 08:48:20 -07:00
robertphillips
e275fdf812 Add GM to repro crbug.com/472795
This CL also adds a new parameter to SkBitmapSource which gives the user control of the filter quality.

BUG=472795

Review URL: https://codereview.chromium.org/1072603002
2015-04-09 06:47:12 -07:00
mtklein
c9adb05b64 Refactor Sk2x<T> + Sk4x<T> into SkNf<N,T> and SkNi<N,T>
The primary feature this delivers is SkNf and SkNd for arbitrary power-of-two N.  Non-specialized types or types larger than 128 bits should now Just Work (and we can drop in a specialization to make them faster).  Sk4s is now just a typedef for SkNf<4, SkScalar>; Sk4d is SkNf<4, double>, Sk2f SkNf<2, float>, etc.

This also makes implementing new specializations easier and more encapsulated.  We're now using template specialization, which means the specialized versions don't have to leak out so much from SkNx_sse.h  and SkNx_neon.h.

This design leaves us room to grow up, e.g to SkNf<8, SkScalar> == Sk8s, and to grown down too, to things like SkNi<8, uint16_t> == Sk8h.

To simplify things, I've stripped away most APIs (swizzles, casts, reinterpret_casts) that no one's using yet.  I will happily add them back if they seem useful.

You shouldn't feel bad about using any of the typedef Sk4s, Sk4f, Sk4d, Sk2s, Sk2f, Sk2d, Sk4i, etc.  Here's how you should feel:
  - Sk4f, Sk4s, Sk2d: feel awesome
  - Sk2f, Sk2s, Sk4d: feel pretty good

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

BUG=skia:3592

Review URL: https://codereview.chromium.org/1048593002
2015-03-30 10:50:27 -07:00
mtklein
36352bf5e3 C++11 override should now be supported by all of {bots,Chrome,Android,Mozilla}
NOPRESUBMIT=true

BUG=skia:
DOCS_PREVIEW= https://skia.org/?cl=1037793002

Review URL: https://codereview.chromium.org/1037793002
2015-03-25 18:17:32 -07:00
reed
62a320c8d4 Revert of Revert of remove colorfilter native-565 support. complicating w/ no real value. (patchset #1 id:1 of https://codereview.chromium.org/1022673007/)
Reason for revert:
fix for chrome has landed...

Original issue's description:
> Revert of remove colorfilter native-565 support. complicating w/ no real value. (patchset #2 id:20001 of https://codereview.chromium.org/1015533011/)
>
> Reason for revert:
> skia/ext/benchmarking_canvas.cc references HasFilter16 :(
>
> Original issue's description:
> > remove colorfilter native-565 support. complicating w/ no real value.
> >
> > BUG=skia:
> > TBR=
> >
> > Committed: https://skia.googlesource.com/skia/+/2151353d161fe389cdc0db62cfe1932c7680f710
>
> TBR=reed@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/92b47c49016749249ff8521e424c4373b4a74241

TBR=reed@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1016103004
2015-03-24 06:35:23 -07:00
reed
92b47c4901 Revert of remove colorfilter native-565 support. complicating w/ no real value. (patchset #2 id:20001 of https://codereview.chromium.org/1015533011/)
Reason for revert:
skia/ext/benchmarking_canvas.cc references HasFilter16 :(

Original issue's description:
> remove colorfilter native-565 support. complicating w/ no real value.
>
> BUG=skia:
> TBR=
>
> Committed: https://skia.googlesource.com/skia/+/2151353d161fe389cdc0db62cfe1932c7680f710

TBR=reed@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1022673007
2015-03-24 05:18:09 -07:00
reed
b67eb2f9b9 Revert "Revert of impl colormatrix w/ floats (patchset #7 id:120001 of https://codereview.chromium.org/967943002/)"
disabled for the momment -- need to understand arm64 glitches

This reverts commit 374a4c3b74.

BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/1028403002
2015-03-24 04:13:45 -07:00
reed
2151353d16 remove colorfilter native-565 support. complicating w/ no real value.
BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/1015533011
2015-03-24 03:50:22 -07:00
reed
374a4c3b74 Revert of impl colormatrix w/ floats (patchset #7 id:120001 of https://codereview.chromium.org/967943002/)
Reason for revert:
Arm64 seems to be having glitches :(

See gm:colormatrix on Arm64/TegraK1/Nexus9

last square should be all white, but it has stripes

Original issue's description:
> impl colormatrix w/ floats
>
> this needs to land first https://codereview.chromium.org/1031713003
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/7971def11be91ed08eae7107b372322d24e67544

TBR=mtklein@google.com,caryclark@google.com,reed@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1030743003
2015-03-23 18:52:57 -07:00
reed
7971def11b impl colormatrix w/ floats
this needs to land first https://codereview.chromium.org/1031713003

BUG=skia:

Review URL: https://codereview.chromium.org/967943002
2015-03-23 14:35:25 -07:00
senorblanco
8c874eee94 Move SkMatrixImageFilter into core, and add a factory fn for it.
BUG=skia:

Review URL: https://codereview.chromium.org/1011273003
2015-03-20 06:38:17 -07:00
senorblanco
977b6f7e7b Remove deprecated flavour of SkDropShadowImageFilter::Create().
Review URL: https://codereview.chromium.org/1026603002
2015-03-20 06:38:00 -07:00
senorblanco
6c1b338827 Remove now-unused uniqueID param from SkDropShadowImageFilter::Create().
Also make both input & crop rect default NULL, as in other filter Create functions.

BUG=skia:

Review URL: https://codereview.chromium.org/1016343002
2015-03-19 13:39:19 -07:00
senorblanco
24e06d5244 Remove uniqueID from all filter serialization.
(This is essentially a revert of https://codereview.chromium.org/503833002/.)

This was necessary back when SkPaint was flattened even for in-process use. Now that we only flatten SkPaint for cross-process use, there's no need to serialize UniqueIDs.

Note: SkDropShadowImageFilter is being constructed with a croprect and UniqueID (of 0) in Blink. I've made the uniqueID param default to 0 temporarily, until this rolls in and Blink can be changed. (Blink can't be changed first, since unlike the other filters, there's no constructor that takes a cropRect but not a uniqueID.)

BUG=skia:

Review URL: https://codereview.chromium.org/1019493002
2015-03-18 12:11:33 -07:00
reed
82b0748f1c remove dead code
BUG=skia:

Review URL: https://codereview.chromium.org/1016523002
2015-03-16 13:56:42 -07:00
reed
93a1215fe0 SkPaint::FilterLevel -> SkFilterQuality
clone (+rebase) of https://codereview.chromium.org/1009183002/

BUG=skia:
TBR=scroggo@google.com

Review URL: https://codereview.chromium.org/1014533004
2015-03-16 10:08:34 -07:00
reed
cedc36f18b Use ComposColorFilter to collaps hierarchy (when possible).
Clarify asColorFilter ...
1. Rename to isColorFilterNode for DAG reduction
2. Add asAColorFilter for removing the imagefilter entirely (future use-case)

Need layouttest rebaseline suppression before this can land in chrome...
https://codereview.chromium.org/984023004/

BUG=skia:

Review URL: https://codereview.chromium.org/982933002
2015-03-08 04:42:52 -07:00
djsollen
961707f384 Remove SkPorterDuff now that Android has been updated.
BUG=skia:3178

Review URL: https://codereview.chromium.org/983743003
2015-03-05 12:42:29 -08:00
tomhudson
64de1e1790 ViaAndroidSDK for DM
Make a Via for DM which transforms a set of draws to be more like what
we'd see through the Android Framework's HWUI API. Only built inside
Android's framework because we depend on HWUI classes for half of
those transformations.

Tested with --config androidsdk-8888 and --config androidsdk-hwui.

R=djsollen@google.com,mtklein@google.com,reed@google.com
BUG=skia:

Review URL: https://codereview.chromium.org/974913002
2015-03-05 08:01:07 -08:00
reed
cff10b21a9 change colorfilter to return an array of frag processors
BUG=skia:

Review URL: https://codereview.chromium.org/973593002
2015-03-03 06:41:45 -08:00
reed
8a8d841d48 add virtuals to optimize composing colorfilters
BUG=skia:

Review URL: https://codereview.chromium.org/968993004
2015-03-02 13:46:03 -08:00
reed
db873d8677 add compose-colorfilter
now with serialization registration

This reverts commit 5bd055c038.

BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/970753002
2015-03-01 19:53:47 -08:00
ajuma
5788faaa2a Fix SkComposeImageFilter's bounds computation and offset handling
This makes SkComposeImageFilter::computeFastBounds compose its
filters' bounds (rather than falling back to
SkImageFilter::computeFastBounds, which takes the union of the bounds).

This also makes SkComposeImageFilter::onFilterImage correctly handle
an offset produced when applying the inner filter; such offsets were
previously ignored.

BUG=chromium:453924

Review URL: https://codereview.chromium.org/908273002
2015-02-13 09:05:47 -08:00