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5892 Commits

Author SHA1 Message Date
skia.committer@gmail.com
bc3d92a7d8 Sanitizing source files in Housekeeper-Nightly 
git-svn-id: http://skia.googlecode.com/svn/trunk@13800 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-14 03:02:26 +00:00
commit-bot@chromium.org
44c48d062f De-virtualize SkCanvas matrix ops. 
This moves the matrix management logic into non-virtual SkCanvas
methods, and turns the virtuals into protected notifiers.

R=reed@google.com, robertphillips@google.com, bsalomon@google.com
BUG=skia:2297

Author: fmalita@chromium.org

Review URL: https://codereview.chromium.org/195793012

git-svn-id: http://skia.googlecode.com/svn/trunk@13799 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-13 20:03:58 +00:00
commit-bot@chromium.org
1037d92bbc Added Z scale when X and Y scale to spot lights and point lights 
Z scale is set as the average of X scale and Y scale.

BUG=skia:
R=senorblanco@google.com, senorblanco@chromium.org

Author: sugoi@chromium.org

Review URL: https://codereview.chromium.org/198013002

git-svn-id: http://skia.googlecode.com/svn/trunk@13798 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-13 19:45:41 +00:00
commit-bot@chromium.org
3da3b621c3 getDeviceCapabilities is no longer need, so remove it 
BUG=skia:
R=bungeman@google.com, vandebo@chromium.org

Author: reed@google.com

Review URL: https://codereview.chromium.org/198943003

git-svn-id: http://skia.googlecode.com/svn/trunk@13797 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-13 19:38:10 +00:00
bsalomon@google.com
44a435bc1a Attempt to fix -1->unsigned warning on mac 10.6 
TBR=bungeman@google.com

Review URL: https://codereview.chromium.org/199433002

git-svn-id: http://skia.googlecode.com/svn/trunk@13796 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-13 19:20:32 +00:00
commit-bot@chromium.org
0f10f7bf1f Allow toString capability to be toggled independent of developer mode. 
This change is motivated by the desire to see the text information in the debugger when not in developer mode. It is structured so user's can disable it if the capability is not wanted.

R=bsalomon@google.com

Author: robertphillips@google.com

Review URL: https://codereview.chromium.org/197763008

git-svn-id: http://skia.googlecode.com/svn/trunk@13795 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-13 18:02:17 +00:00
commit-bot@chromium.org
fa5edbe575 Add effect-based clip for nine-patch SkRRects. 
BUG=skia:2181
R=jvanverth@google.com, robertphillips@google.com, rmistry@google.com

Author: bsalomon@google.com

Review URL: https://codereview.chromium.org/194703011

git-svn-id: http://skia.googlecode.com/svn/trunk@13794 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-13 18:01:05 +00:00
commit-bot@chromium.org
98e22b84ca Fix distance field edge detection. 
When computing the initial edges for distance field generation, I was skipping
the outer pixels of glyphs to avoid accessing out of range memory. However,
there might be an edge transition on those pixels. This detects those cases.

R=robertphillips@google.com

Author: jvanverth@google.com

Review URL: https://codereview.chromium.org/197423003

git-svn-id: http://skia.googlecode.com/svn/trunk@13791 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-13 17:11:44 +00:00
commit-bot@chromium.org
ea163cc3a7 Changes to SkFontHost_linux 
* Use SkOSPath::SkPathJoin() rather than append so that
  SK_FONT_FILE_PREFIX does not have to end in a '/'.

* Add another font to the default font list.

Motivation: Some tests fail when there are no default fonts.

BUG=skia:2282
R=bungeman@google.com

Author: halcanary@google.com

Review URL: https://codereview.chromium.org/195733007

git-svn-id: http://skia.googlecode.com/svn/trunk@13789 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-13 16:24:49 +00:00
skia.committer@gmail.com
affa77db64 Sanitizing source files in Housekeeper-Nightly 
git-svn-id: http://skia.googlecode.com/svn/trunk@13782 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-13 03:02:23 +00:00
commit-bot@chromium.org
1db03d2fad remove SK_SUPPORT_LEGACY_COPYTO_CONFIG 
TBR=robertphillips@google.com

Author: reed@google.com

Review URL: https://codereview.chromium.org/196413009

git-svn-id: http://skia.googlecode.com/svn/trunk@13780 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 21:47:51 +00:00
bungeman@google.com
562b2e67a2 Fix (1 << 31) to (1u << 31) in SkOTTable_OS_2. 
When ints are 32 bits, (1 << 31) is undefined.

R=reed@google.com

Committed: https://code.google.com/p/skia/source/detail?r=13757

Review URL: https://codereview.chromium.org/189093020

git-svn-id: http://skia.googlecode.com/svn/trunk@13779 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 21:41:06 +00:00
senorblanco@chromium.org
2ca677e75d Fix GPU colormatrix color filter with saturated alpha. 
Clamp RGBA values before unpremultiplying, to match the raster path. This causes a problem when the resulting
alpha is >1.0, resulting in overly saturated RGB.

Covered by the setYUV2RGB() test case in the colormatrix GM.

R=bsalomon@google.com

Review URL: https://codereview.chromium.org/196133006

git-svn-id: http://skia.googlecode.com/svn/trunk@13778 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 21:37:42 +00:00
commit-bot@chromium.org
e54a23fcfa De-virtualize SkCanvas save/restore. 
This moves the state management logic into non-virtual SkCanvas methods,
and turns the virtuals into protected notifiers.

R=reed@google.com, robertphillips@google.com

Author: fmalita@chromium.org

Review URL: https://codereview.chromium.org/194713008

git-svn-id: http://skia.googlecode.com/svn/trunk@13776 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 20:21:48 +00:00
reed@google.com
9c135db83d support direct writing to top layer, and hide getTopLayer() 
this should remove many of the chrome callers that today call
accessBitmap on the toplayer, so they can read/write those pixels.

The ultimate fix will be to support custom allocation of raster layers
(via GDI/cairo/mac) so we can remove PlatformDevice subclassing in
skia/ext

BUG=skia:
R=bsalomon@google.com, scroggo@google.com

Review URL: https://codereview.chromium.org/197433002

git-svn-id: http://skia.googlecode.com/svn/trunk@13774 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 18:28:35 +00:00
fmalita@google.com
9d201d6364 Remove unused zero_fill() in GrAtlas.cpp 
Triggers warnings with some local clang builds.

R=jvanverth@google.com

Review URL: https://codereview.chromium.org/197663003

git-svn-id: http://skia.googlecode.com/svn/trunk@13773 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 17:31:20 +00:00
bsalomon@google.com
2ae9501e6f Fix unit tests 
Review URL: https://codereview.chromium.org/197823002

git-svn-id: http://skia.googlecode.com/svn/trunk@13772 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 17:29:46 +00:00
robertphillips@google.com
1e35304734 Fix for test failure 
git-svn-id: http://skia.googlecode.com/svn/trunk@13771 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 17:16:59 +00:00
commit-bot@chromium.org
ae79612092 Add compile flag to force usage of distance fields for all SkPaints. 
BUG=skia:2173
R=reed@google.com, robertphillips@google.com

Author: jvanverth@google.com

Review URL: https://codereview.chromium.org/195213003

git-svn-id: http://skia.googlecode.com/svn/trunk@13770 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 17:05:46 +00:00
commit-bot@chromium.org
c30dcb9b12 Add capture snapshot as data to SkWriter32, use it to optimise record->playback. 
This is a new way of implementing https://codereview.chromium.org/155863005/
It uses copy on write semantics to return a buffer without copying it, so that record -> playback does not need to copy the buffer.

BUG=skia:2125
R=tomhudson@google.com, mtklein@google.com, reed@google.com, iancottrell@chromium.org

Author: iancottrell@google.com

Review URL: https://codereview.chromium.org/167113003

git-svn-id: http://skia.googlecode.com/svn/trunk@13769 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 17:04:28 +00:00
commit-bot@chromium.org
84cd099704 Clean up SkImageFilter. 
Rename more occurences of 'target' to 'kernelOffset'.
This is a follow-up patch to
https://codereview.chromium.org/182983003/

BUG=skia:2187
R=senorblanco@chromium.org

Author: dominikg@chromium.org

Review URL: https://codereview.chromium.org/197013003

git-svn-id: http://skia.googlecode.com/svn/trunk@13768 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 16:36:08 +00:00
commit-bot@chromium.org
4355f21dbc Add elliptical-corner rrect clip effect. Currently only handles the case where all corners have the same pair of radii. 
BUG=skia:2181
R=jvanverth@google.com

Author: bsalomon@google.com

Review URL: https://codereview.chromium.org/194603004

git-svn-id: http://skia.googlecode.com/svn/trunk@13766 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 15:32:50 +00:00
commit-bot@chromium.org
069a55a7fe Revert of Revert of Revert "De-virtualize SkCanvas save/restore." (https://codereview.chromium.org/196323003/) 
Reason for revert:
Pulling out to rename the virtuals.

Original issue's description:
> Revert of Revert "De-virtualize SkCanvas save/restore." (https://codereview.chromium.org/194923008/)
>
> Reason for revert:
> Re-landing after roll fix.
>
> Original issue's description:
> > Revert "De-virtualize SkCanvas save/restore."
> >
> > (To allow a roll fix into the tree).
> >
> > This reverts commit edf702204be42c945254191f9f9cd6585b3d189b.
> >
> > R=halcanary@google.com
> >
> > Committed: https://code.google.com/p/skia/source/detail?r=13748
>
> TBR=halcanary@google.com,fmalita@chromium.org
> NOTREECHECKS=true
> NOTRY=true
>
> Committed: http://code.google.com/p/skia/source/detail?r=13754

R=halcanary@google.com, fmalita@chromium.org
TBR=fmalita@chromium.org, halcanary@google.com
NOTREECHECKS=true
NOTRY=true

Author: fmalita@google.com

Review URL: https://codereview.chromium.org/197553002

git-svn-id: http://skia.googlecode.com/svn/trunk@13765 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 15:08:22 +00:00
commit-bot@chromium.org
9e5f85e89d Fixing SkPicture serialization 
Fixed a few issues while attempting to use the new
serialization path for SkPicture inside a fuzzer:
- SkReadBuffer and SkValidatingReadBuffer both had a fReader
member instead of sharing the same member, which leads to
problems if a base class function is used
- In SkPicture, a header is now written as a single chunk of
data, so it also has to be read as a single chunk of data
- In the SkPicturePlayback destructor, a bad deserialization
would lead to a crash if we don't safely unref fOpData
- Also in SkPicturePlayback, if we only use a ReadBuffer for
the whole deserialization, additional tags must be added to
parseBufferTag()
- SkValidatingReadBuffer::readBitmap() was broken, but this
path wasn't usen't since the only use case for
SkValidatingReadBuffer is currently image filters and
bitmaps are unflattened as part of the deserialization of
SkBitmapSource
- SkPictureImageFilter was not deserializable. Added it to
SkGlobalInitialization*
- Added a test that exercises the SkPicture serialization /
deserialization code

BUG=skia:
R=senorblanco@google.com, senorblanco@chromium.org, reed@google.com, robertphillips@google.com

Author: sugoi@chromium.org

Review URL: https://codereview.chromium.org/195223003

git-svn-id: http://skia.googlecode.com/svn/trunk@13764 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 14:46:41 +00:00
commit-bot@chromium.org
79fbb40bca [WIP] Add Context to SkDrawLooper. 
SkDrawLooper carries some state during draws. This CL extracts this state into
a separate class Context, which is then passed by the users of SkDrawLooper
into the appropriate methods.
This is a step towards making SkDrawLooper immutable.

BUG=skia:2141
R=scroggo@google.com, reed@google.com, sugoi@google.com

Author: dominikg@chromium.org

Review URL: https://codereview.chromium.org/155513012

git-svn-id: http://skia.googlecode.com/svn/trunk@13760 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 09:42:01 +00:00
bungeman@google.com
ad07e69d4c Revert the rest of r13757. 
git-svn-id: http://skia.googlecode.com/svn/trunk@13759 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 04:00:25 +00:00
bungeman@google.com
e60ae2eca3 Revert 13757. 
git-svn-id: http://skia.googlecode.com/svn/trunk@13758 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 03:46:48 +00:00
bungeman@google.com
3258a5348b Fix (1 << 31) to (1u << 31) in SkOTTable_OS_2. 
When ints are 32 bits, (1 << 31) is undefined.

R=reed@google.com

Review URL: https://codereview.chromium.org/189093020

git-svn-id: http://skia.googlecode.com/svn/trunk@13757 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 03:13:48 +00:00
commit-bot@chromium.org
2cccf83326 make onReadPixels protected and have default impl (so we can remove chrome override) 
R=reed@google.com
TBR=bsalomon@google.com

Author: reed@chromium.org

Review URL: https://codereview.chromium.org/196543004

git-svn-id: http://skia.googlecode.com/svn/trunk@13756 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 03:04:08 +00:00
skia.committer@gmail.com
0b70816eb1 Sanitizing source files in Housekeeper-Nightly 
git-svn-id: http://skia.googlecode.com/svn/trunk@13755 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-12 03:02:18 +00:00
commit-bot@chromium.org
4fcd92d0bf Revert of Revert "De-virtualize SkCanvas save/restore." (https://codereview.chromium.org/194923008/) 
Reason for revert:
Re-landing after roll fix.

Original issue's description:
> Revert "De-virtualize SkCanvas save/restore."
>
> (To allow a roll fix into the tree).
>
> This reverts commit edf702204be42c945254191f9f9cd6585b3d189b.
>
> R=halcanary@google.com
>
> Committed: https://code.google.com/p/skia/source/detail?r=13748

R=halcanary@google.com, fmalita@chromium.org
TBR=fmalita@chromium.org, halcanary@google.com
NOTREECHECKS=true
NOTRY=true

Author: fmalita@google.com

Review URL: https://codereview.chromium.org/196323003

git-svn-id: http://skia.googlecode.com/svn/trunk@13754 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-11 23:47:35 +00:00
commit-bot@chromium.org
e63306df4d Only set USE_ANDROID_NDK_CPU_FEATURES if it's not already been explicitly set 
R=djsollen@google.com, reed@google.com
BUG=skia:

Author: george@mozilla.com

Review URL: https://codereview.chromium.org/189263015

git-svn-id: http://skia.googlecode.com/svn/trunk@13750 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-11 22:57:21 +00:00
commit-bot@chromium.org
c169f44460 fix build error in chromium 
NOTREECHECKS=true
NOTRY=true
R=fmalita@google.com, jvanverth@google.com, fmalita@chromium.org
TBR=fmalita@google.com

Author: halcanary@google.com

Review URL: https://codereview.chromium.org/195223004

git-svn-id: http://skia.googlecode.com/svn/trunk@13749 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-11 21:50:00 +00:00
fmalita@google.com
f1292bc01f Revert "De-virtualize SkCanvas save/restore." 
(To allow a roll fix into the tree).

This reverts commit edf702204be42c945254191f9f9cd6585b3d189b.

R=halcanary@google.com

Review URL: https://codereview.chromium.org/194923008

git-svn-id: http://skia.googlecode.com/svn/trunk@13748 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-11 21:46:56 +00:00
fmalita@google.com
80b10518a2 De-virtualize SkCanvas save/restore. 
This moves the state management logic into non-virtual SkCanvas methods,
and turns the virtuals into protected notifiers.

R=robertphillips@google.com, reed@google.com

Review URL: https://codereview.chromium.org/194713008

git-svn-id: http://skia.googlecode.com/svn/trunk@13747 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-11 21:04:41 +00:00
robertphillips@google.com
53ba425c91 Drop executable flag from headers so that they can be packaged 
https://codereview.chromium.org/194883004/



git-svn-id: http://skia.googlecode.com/svn/trunk@13746 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-11 19:55:51 +00:00
senorblanco@chromium.org
06342a2666 Fix SkOffsetImageFilter to use a temporary for bounds computations. 
SkOffsetImageFilter::onFilterBounds() was writing to *dst, and later
referring to src. These may be the same memory location, so the results
were incorrect.

Covered by the 5th test case in offsetimagefilter.

BUG=skia:

Review URL: https://codereview.chromium.org/195163004

git-svn-id: http://skia.googlecode.com/svn/trunk@13744 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-11 18:29:42 +00:00
bsalomon@google.com
de9f251427 Fix radical assumption that 0.5 in double is exactly convertible to float. 
BUG=skia:2181

Review URL: https://codereview.chromium.org/195423002

git-svn-id: http://skia.googlecode.com/svn/trunk@13742 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-11 17:09:17 +00:00
commit-bot@chromium.org
b97c3ffddf Enable use of distance fields via SkPaint flag. 
Now that distance field generation is fast enough to make it practical, this makes distances field fonts easily available to anyone who wants to try them out (i.e Chromium).

BUG=skia:2173
R=reed@google.com, bsalomon@google.com

Author: jvanverth@google.com

Review URL: https://codereview.chromium.org/193163003

git-svn-id: http://skia.googlecode.com/svn/trunk@13741 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-11 17:07:15 +00:00
commit-bot@chromium.org
8065ec50f1 Add new module for distance field generation. 
This improves the speed over the previous method by 10x+, and makes using distance fields practical.

BUG=skia:2173

Committed: http://code.google.com/p/skia/source/detail?r=13729

R=bsalomon@google.com, robertphillips@google.com

Author: jvanverth@google.com

Review URL: https://codereview.chromium.org/178543007

git-svn-id: http://skia.googlecode.com/svn/trunk@13740 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-11 15:57:40 +00:00
commit-bot@chromium.org
c5c748c147 Handle rrects with one circular corner and three square corners in GrRRectEffect. 
BUG=skia:2181
R=jvanverth@google.com

Author: bsalomon@google.com

Review URL: https://codereview.chromium.org/193263002

git-svn-id: http://skia.googlecode.com/svn/trunk@13739 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-11 15:54:51 +00:00
commit-bot@chromium.org
821397018f plumbing for GPU fast blur 
BUG=skia:2281
R=bsalomon@google.com

Author: humper@google.com

Review URL: https://codereview.chromium.org/193193002

git-svn-id: http://skia.googlecode.com/svn/trunk@13735 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-10 22:53:20 +00:00
commit-bot@chromium.org
a477154cfc plumb API for analytic rrect blur 
BUG=skia:2281
R=bsalomon@google.com, reed@google.com

Author: humper@google.com

Review URL: https://codereview.chromium.org/189663012

git-svn-id: http://skia.googlecode.com/svn/trunk@13733 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-10 21:42:06 +00:00
commit-bot@chromium.org
b5f3b35645 Revert of Add new module for distance field generation. (https://codereview.chromium.org/178543007/) 
Reason for revert:
multiple compile errors

Original issue's description:
> Add new module for distance field generation.
>
> This improves the speed over the previous method by 10x+, and makes using distance fields practical.
>
> BUG=skia:2173
>
> Committed: http://code.google.com/p/skia/source/detail?r=13729

R=bsalomon@google.com, robertphillips@google.com, jvanverth@google.com
TBR=bsalomon@google.com, jvanverth@google.com, robertphillips@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:2173

Author: halcanary@google.com

Review URL: https://codereview.chromium.org/190753015

git-svn-id: http://skia.googlecode.com/svn/trunk@13732 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-10 20:37:54 +00:00
reed@google.com
b93ba45b58 flag to make kClipToLayer_SaveFlag the default behavior 
#define SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG to get the old behavior

The goal is to remove the feature of saveLayer that allows the canvas to draw outside of the top-most layer.

R=robertphillips@google.com, scroggo@google.com

Review URL: https://codereview.chromium.org/190723004

git-svn-id: http://skia.googlecode.com/svn/trunk@13730 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-10 19:47:58 +00:00
commit-bot@chromium.org
bf99824083 Add new module for distance field generation. 
This improves the speed over the previous method by 10x+, and makes using distance fields practical.

BUG=skia:2173
R=bsalomon@google.com, robertphillips@google.com

Author: jvanverth@google.com

Review URL: https://codereview.chromium.org/178543007

git-svn-id: http://skia.googlecode.com/svn/trunk@13729 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-10 19:38:51 +00:00
commit-bot@chromium.org
d7e0fbef5d Pulling these out of other reviews so avoid code review clutter. 
R=jvanverth@google.com

Author: robertphillips@google.com

Review URL: https://codereview.chromium.org/192783002

git-svn-id: http://skia.googlecode.com/svn/trunk@13724 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-10 16:41:00 +00:00
commit-bot@chromium.org
dd58422b4b Use bitfield rather than distinct enum types for circular corners in RRectEffect. 
BUG=skia:2181
R=robertphillips@google.com

Author: bsalomon@google.com

Review URL: https://codereview.chromium.org/191613003

git-svn-id: http://skia.googlecode.com/svn/trunk@13723 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-10 16:08:22 +00:00
commit-bot@chromium.org
8f58b85bfb remove legacy ifdef wrapping fast blur 
BUG=skia:
R=robertphillips@google.com

Author: humper@google.com

Review URL: https://codereview.chromium.org/192833002

git-svn-id: http://skia.googlecode.com/svn/trunk@13722 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-10 16:05:57 +00:00
commit-bot@chromium.org
cac5fd597f Factory methods for heap-allocated SkImageFilter objects. 
This is part of an effort to ensure that all SkPaint effects can only be
allocated on the heap.

This patch makes the constructors of SkImageFilter and its subclasses non-public
and instead provides factory methods for creating these objects on the heap. We
temporarily keep constructor of publicly visible classes public behind a flag.

BUG=skia:2187
R=scroggo@google.com, mtklein@chromium.org, reed@google.com, senorblanco@google.com, senorblanco@chromium.org, bsalomon@google.com, sugoi@chromium.org, zork@chromium.org

Author: dominikg@chromium.org

Review URL: https://codereview.chromium.org/182983003

git-svn-id: http://skia.googlecode.com/svn/trunk@13718 2bbb7eff-a529-9590-31e7-b0007b416f81
 2014-03-10 10:51:58 +00:00