Gives more flexibility to the caller to decide whether to use the
encoded data returned by refEncodedData().
Provides an implementation that supports the old version of
SkPicture::serialize().
TODO: Update Chrome, so we can remove SK_LEGACY_ENCODE_BITMAP entirely
BUG=skia:3190
Review URL: https://codereview.chromium.org/784643002
Reason for revert:
Compilation is failing on some bots
Original issue's description:
> Replace EncodeBitmap with an interface.
>
> Gives more flexibility to the caller to decide whether to use the
> encoded data returned by refEncodedData().
>
> Provides an implementation that supports the old version of
> SkPicture::serialize().
>
> TODO: Update Chrome, so we can remove SK_LEGACY_ENCODE_BITMAP entirely
>
> BUG=skia:3190
>
> Committed: https://skia.googlesource.com/skia/+/0c4aba6edb9900c597359dfa49d3ce4a41bc5dd1TBR=reed@google.com,scroggo@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:3190
Review URL: https://codereview.chromium.org/787833002
Gives more flexibility to the caller to decide whether to use the
encoded data returned by refEncodedData().
Provides an implementation that supports the old version of
SkPicture::serialize().
TODO: Update Chrome, so we can remove SK_LEGACY_ENCODE_BITMAP entirely
BUG=skia:3190
Review URL: https://codereview.chromium.org/784643002
Restores type safety with all the same features.
(Also note, less code: 29 insertions, 50 deletions.)
BUG=skia:
Review URL: https://codereview.chromium.org/746553002
SkNVRefCnt is a variant of SkRefCnt that's Not Virtual, so weighs 4 bytes
instead of 8 or 16. There's only benefit to doing this if the deriving class
does not otherwise need a vtable, e.g. SkPicture.
I've stripped out some cruft from SkPicture, rearranged fields to pack tightly,
and added compile asserts for the sizes of SkPicture, SkRecord, and
SkVarAlloc.
BUG=skia:3144
Review URL: https://codereview.chromium.org/741793002
Idea:
1. in its mutable recording state, keep a table of drawables on the side, and store an index in the record list.
2. In "immediate-mode" draw, just call the clients drawable directly (need access to our private list to turn the stored index into a proc)
3. when we "snap", we replace the list of drawables with a list of (sub) pictures, and then during playback of the snapped picture, we invoke a private drawable which just calls "drawPicture" on the index'd subpicture.
Review URL: https://codereview.chromium.org/727363003
- move field declarations together and pack them a little tighter
- get rid of fData
- remove dead code in debugger, including unused SkPicturePlayback subclass
There are now no more long-lived SkPictureData! (Really, there never were,
but now we don't pretend to support them.)
BUG=skia:
No API changes.
TBR=reed@google.com
Review URL: https://codereview.chromium.org/725143002
This CL removes CollectLayers' reliance on having the top most picture (by removing the unused fPictureID member). This then allows making CollectLayers' API closer to that of SkRecordFillBounds in order to facilitate using them interchangeably.
Review URL: https://codereview.chromium.org/714533002
This will be a bit hairy to review.
The FillBounds and CollectLayers code has diverged significantly resulting in the rendering path seeing different bounds than the hoisting path. This CL merges the FillBounds changes into CollectLayers. A follow on CL will, hopefully, find a way to layer CollectLayers on top of FillBounds.
The only code in CollectLayers that is different from FillBounds is bracketed by "LAYER HOISTING" comments.
NOTREECHECKS=true
Review URL: https://codereview.chromium.org/685263004
This is basically how blink uses the filter. Currently, I can't use it for "ShadowOnly" mode with the filter at all, but instead of copying the code and risking to have the codepaths diverge, I'm simply going to add the option here.
BUG=skia:
Review URL: https://codereview.chromium.org/646213004
This removes:
1) ability to record old pictures with SkPictureRecorder;
2) a couple tests specific to the old backend.
The functionality of DEPRECATED_beginRecording() now lives in
(private) SkPicture::Backport(), which is the only place we
need it now.
BUG=skia:
TBR=reed@google.com
Review URL: https://codereview.chromium.org/618303002
Having hoisted layers from different pictures invalidates the assumptions of the old GrReplacements object. This is fixed by switching to a SkTDynamicHash-based back-end.
Sub-picture-layers also require that the replacement drawing occur for the sub-pictures too. The ReplaceDraw object is added to make this happen and limit the replacement lookup to saveLayer draw commands.
This is split out of (Fix sub-picture layer rendering bugs - https://codereview.chromium.org/597293002/).
BUG=skia:2315
Review URL: https://codereview.chromium.org/607763008
Feature-wise, this removes:
1) BBH support;
2) peephole optimizations;
3) record-time text op specializations;
4) the guarantee that SkPaints are flattened.
This deletes the optimizations GM, which only exists to test the peepholes of
the old backend. SkRecord optimizations are unit tested, and if that ever fails we
can think about adding another GM like this, but they're different enough we'd
want to start from scratch anyway.
We need to keep the code that plays back the specialized text ops around for
a while for compatibility with existing .SKPs that have those ops recorded.
BUG=skia:
CQ_EXTRA_TRYBOTS=tryserver.skia:Canary-Chrome-Ubuntu13.10-Ninja-x86_64-ToT-Trybot
R=robertphillips@google.com, reed@google.com, mtklein@google.com
Author: mtklein@chromium.org
Review URL: https://codereview.chromium.org/617953002
For now this only creates a degenerate bounding box hierarchy where all ops
just have maximal bounds. I will flesh out FillBounds in future CL(s).
Not quite sure why QuadTree and TileGrid aren't drawing right---haven't even
looked at the diffs yet---so I've disabled those test modes for now. RTree
seems fine, so that'll at least get us coverage for all this new plumbing.
BUG=skia:
R=robertphillips@google.com, mtklein@google.com, reed@google.com
Author: mtklein@chromium.org
Review URL: https://codereview.chromium.org/454123003
Add a unique ID to SkImageFilter, and use it as part
of a persistent cache of image-filtered results. This is used for
caching frame-to-frame coherent filters.
We also keep track of which filter subtrees do not reference the
src input, and use a GenID of zero for the src input in that case.
That way, subtrees which are not dependent on the filter input can be
cached independently of it.
This gives approximately a 4X speedup on
letmespellitoutforyou.com/samples/svg/filter_terrain.svg on Z620
and Nexus10. The cache key consists of the uniqueID of the filter, the
clip bounds, the CTM and the genID of the input bitmap.
Since this does not yet handle the case where the input primitives
(and part of the resulting filter tree) are unchanged, we have
to keep around the external cache for that painting case.
When the work to cache unchanging input primitives is done, the
old cache can be removed, and the new UniqueIDCache will be renamed
to Cache.
R=bsalomon@google.com, mtklein@google.com
Author: senorblanco@chromium.org
Review URL: https://codereview.chromium.org/414483003
Reason for revert:
Going to try to just remove the many-at-once clone interface
Original issue's description:
> Add alternate SkPicture::clone
>
> This adds an alternate version of SkPicture::clone for two reasons:
>
> 1) Chromium uses the SkPicture copy constructor to unpack the pictures from the old-style clone interface (and I would like to remove the copy ctor)
>
> 2) This is part of the long term plan to wean Chrome off of cloning. Once pictures are thread safe we will switch the new SkPicture::clone call to just return 'this'. From there it is a small step to removing clone entirely.
>
> Note that the two versions of clone() is temporary. Once this is landed (and rolled) I will land a Chrome-side patch to remove their use of the old interface (Use new SkPicture::clone interface - https://codereview.chromium.org/380323002/)
>
> Committed: https://skia.googlesource.com/skia/+/e372e78223a8ce916d276d6e0420d552fb0267e9R=mtklein@google.com, reed@google.comTBR=mtklein@google.com, reed@google.com
NOTREECHECKS=true
NOTRY=true
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/386933004
This adds an alternate version of SkPicture::clone for two reasons:
1) Chromium uses the SkPicture copy constructor to unpack the pictures from the old-style clone interface (and I would like to remove the copy ctor)
2) This is part of the long term plan to wean Chrome off of cloning. Once pictures are thread safe we will switch the new SkPicture::clone call to just return 'this'. From there it is a small step to removing clone entirely.
Note that the two versions of clone() is temporary. Once this is landed (and rolled) I will land a Chrome-side patch to remove their use of the old interface (Use new SkPicture::clone interface - https://codereview.chromium.org/380323002/)
R=mtklein@google.com, reed@google.com
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/381193002
This CL begins setting up the SkPicturePlayback split by simplifying the class and componentizing it a bit. It:
fuses SkPictureData::OperationList into SkPicture::OperationList
adds a handleOp method to SkPicturePlayback that can be reused by derived classes
removes a couple debugging tools (ENABLE_TIME_DRAW & SPEW_CLIP_SKIPPING)
R=mtklein@google.com, reed@google.com
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/378703002
This splits the playback functionality out of SkPictureData. The old SkPictureData::draw method is pulled out along
with its supporting functions as verbatim as possible. Some follow on CLs will be required to:
re-enable profiling in the debugger (and remove the vestiges of SkTimedPicture)
re-enable display of command offsets in the picture (this should probably wait until we've switched to SkRecord though)
Clean up CachedOperationList (maybe fuse with SkPicture::OperationList)
Split SkPicturePlayback into a base class and two derived classes
Implement parallel version of GatherGPUInfo for SkRecord
Landing this is blocked on removing Android's use of the abortPlayback entry point.
R=mtklein@google.com, reed@google.com
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/377623002
- support fRecord in copy constructor
- support SkDrawPictureCallback
Moved SkDrawPictureCallback to its own header so
SkRecordDraw can include it without pulling in all of
SkPicture.
Adding an SkAutoSaveRestore to SkRecordDraw was the easiest
way to match the balance guarantees of the callback, and
probably not a bad idea in general. Updated its tests.
BUG=skia:
R=robertphillips@google.com
Review URL: https://codereview.chromium.org/349973008
I've tagged all the functions in SkPicture.cpp is // fRecord TODO or // fRecord
OK, depending on whether or not they're totally broken when used from an
SkRecord-based picture. Obviously next steps are to eliminate all the TODOs,
then clean up the notes.
I converted SkPicture over to smart pointers too. It's particularly helpful
that the smart pointers initialize to NULL by default.
For now I've got all the SkRecord-based code jammed in at the bottom of the file. I figure it'll help me keep things straight for a bit, then we can rearrange later.
BUG=skia:
R=robertphillips@google.com
Review URL: https://codereview.chromium.org/333823007
This CL improves the separation of the SkPicture and SkPictureRecord classes. It delays creation of the SkPicture (in SkPictureRecorder) until recording is actually completed. To accomplish this the SkRecord-derived classes now get SkPathHeap and SkPictureContentInfo members that are absorbed by the SkPicture when it is constructed.
As an ancillary change, this CL also moves the SkPictureContentInfo object from SkPicture to SkPicturePlayback. This is intended to centralize all the data in the SkPicturePlayback object.
R=mtklein@google.com, reed@google.com
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/324293004
This is split out of https://codereview.chromium.org/316063005/ for clarity. Keeping in mind that SkPicture::FakeEndRecording is now only called from SkPictureRecorder, its deepCopy parameter is no longer necessary. This is b.c., given the new Picture recording semantics (where SkPictures can no longer be actively recording), cloning for thread safety only happens when an SkPicturePlayback has already been allocated (i.e., it happens in the SkPicturePlayback copy constructor.
R=scroggo@google.com, reed@google.com
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/324093003
My goal here was to add a single location where we could patch up the created PicturePlayback. Unfortunately, the complexity of the recording process (e.g., the BBH) makes this quite complex.
I will investigate altering the behavior of SkPicturePlayback to account for a potentially unbalanced set of saves/saveLayers.
R=reed@google.com
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/283333007
git-svn-id: http://skia.googlecode.com/svn/trunk@14773 2bbb7eff-a529-9590-31e7-b0007b416f81
This CL begins the process of making SkPicturePlayback & SkPictureRecord independent of SkPicture. It just moves the PathHeap into SkPicture to get a feel for where all this is going to lead.
Some items of note:
SkTimedPicture (debugger/QT) should wind up being just an SkPicturePlayback-derived object.
All the flattening & unflattening should migrate out of SkPicturePlayback and into SkPicture.
SkPicture::initForPlayback should eventually become something just SkPictureRecorder::endRecording calls.
SkPicture is passed into SkPicturePlayback's & SkPictureRecord's constructors. SkPicturePlayback only
holds onto a "const SkPicture*". The SkPicturePlayback:: CreateFromStream & CreateFromBuffer methods pass a non-const
SkPicture* down the call stack.
BUG=skia:2315
R=reed@google.com
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/249453002
git-svn-id: http://skia.googlecode.com/svn/trunk@14341 2bbb7eff-a529-9590-31e7-b0007b416f81
This CL sets the stage for retracting the SkPicture::kOptimizeForClippedPlayback_RecordingFlag flag
from the public API (more work needs to be done in Blink & Chrome). In the new world the only way
to set this flag (and thus instantiate an SkPicture-derived
class) is by passing a factory to the SkPictureRecorder class. This is to get all clients always using
factories so that we can then change the factory call used (i.e., so the factory just creates a BBH) and
do away with the SkPicture-derived classes.
BUG=skia:2315
R=reed@google.com
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/239703006
git-svn-id: http://skia.googlecode.com/svn/trunk@14221 2bbb7eff-a529-9590-31e7-b0007b416f81
This is mostly s/public SkNoncopyable/SkNoncopyable/g.
Two classes (SkDrawLooper::Context and SkPicture::OperationList) don't actually work with SkNoncopyable because they introduce a virtual destructor. I added SkNoncopyableVirtual to make them work as intended. Sort of questionable whether they really need to be noncopyable in the first place, but I guess it doesn't hurt to keep the behavior the same.
BUG=skia:
R=reed@google.com, mtklein@google.com
Author: mtklein@chromium.org
Review URL: https://codereview.chromium.org/226183018
git-svn-id: http://skia.googlecode.com/svn/trunk@14081 2bbb7eff-a529-9590-31e7-b0007b416f81
When gathering information about a picture (in the new SkDevice::EXPERIMENTAL_optimize entry point) it is necessary to be able to correlate the gathered information with the command in the SkPicture (so the information can later be combined with the similarly indexed information from the BBH). This entry point exposes that information to friend classes.
R=reed@google.com
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/206853003
git-svn-id: http://skia.googlecode.com/svn/trunk@13919 2bbb7eff-a529-9590-31e7-b0007b416f81
For the "pull forward" task I will be comparing the two cases:
analyze the whole skp and use the BBH information
analyze only the active portion of the skp
In the first case we need a way to get the BBH information out of the picture in order to extract the relevant portions of the whole-skp analysis. This adds caching of the active ops so that work isn't duplicated between when the optimization path queries for that information and when the usual draw path queries for it.
R=reed@google.com, bsalomon@google.com
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/195793010
git-svn-id: http://skia.googlecode.com/svn/trunk@13836 2bbb7eff-a529-9590-31e7-b0007b416f81
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
*** SKP format breaking change ***
Adding a couple of culling primitives: pushCull(SkRect) & popCull().
These are currently only plumbed for SKP playback quickreject.
At record time, we perform a couple of optimizations to trim down the
number of redundant culls:
* collapse empty pushCull/popCull pairs
* skip pushCull/popCull pairs nested within an identical cull rect
Things still missing/to consider:
* use an inlineable, simplified quickreject (Mike's old prototype)
* debugger visualization for cull boxes
* BBH integration: the initial prototype had some minimal BBH support,
but since the optimizations required expensive rewinds and culling
is expected to be a BBH alternative, it got dropped.
R=bsalomon@google.com, reed@google.com, robertphillips@google.com, caryclark@google.com, tomhudson@google.com, iancottrell@google.com
Author: fmalita@chromium.org
Review URL: https://codereview.chromium.org/138013009
git-svn-id: http://skia.googlecode.com/svn/trunk@13611 2bbb7eff-a529-9590-31e7-b0007b416f81
Eliminates SkFlattenable{Read,Write}Buffer, promoting SkOrdered{Read,Write}Buffer
a step each in the hierarchy.
What used to be this:
SkFlattenableWriteBuffer -> SkOrderedWriteBuffer
SkFlattenableReadBuffer -> SkOrderedReadBuffer
SkFlattenableReadBuffer -> SkValidatingReadBuffer
is now
SkWriteBuffer
SkReadBuffer -> SkValidatingReadBuffer
Benefits:
- code is simpler, names are less wordy
- the generic SkFlattenableFooBuffer code in SkPaint was incorrect; removed
- write buffers are completely devirtualized, important for record speed
This refactoring was mostly mechanical. You aren't going to find anything
interesting in files with less than 10 lines changed.
BUG=skia:
R=reed@google.com, scroggo@google.com, djsollen@google.com, mtklein@google.com
Author: mtklein@chromium.org
Review URL: https://codereview.chromium.org/134163010
git-svn-id: http://skia.googlecode.com/svn/trunk@13245 2bbb7eff-a529-9590-31e7-b0007b416f81
There's little benefit to deduping matrices and regions: they're infrequently
used, and doubly infrequently reused. Their use-weighted byte cost is tiny.
There is some downside to deduping matrices and regions. Even when they're not
used, we prepare dictionaries for deduping them for every picture. Each of
these dictionaries costs 160 bytes, so two unused dictionaries make a big chunk
of the ~1100 bytes it takes to allocate an SkPictureRecord. (~330 come from
parent class SkCanvas, 768 from SkPictureRecord itself, here reduced to 448).
One side benefit of not deduping these guys is that the change weighs -140 lines of code.
It may go without saying, but this breaks the picture format.
Testing: out/Debug/tests && out/Debug/dm (which runs all picture modes by default)
BUG=skia:1850
R=reed@google.com, bensong@google.com, robertphillips@google.com
Author: mtklein@google.com
Review URL: https://codereview.chromium.org/143883006
git-svn-id: http://skia.googlecode.com/svn/trunk@13149 2bbb7eff-a529-9590-31e7-b0007b416f81
Revert "Revert "PixelRef now returns (nearly) everything that is currently in SkBitmap. The goal is to refactor bitmap later to remove redundancy, and more interestingly, remove the chance for a disconnect between the actual (pixelref) rowbytes and config, and the one claimed by the bitmap.""""""
This reverts commit eabd6b2ed4e494b323c08f32358f45950a0368c3.
BUG=
Review URL: https://codereview.chromium.org/108773003
git-svn-id: http://skia.googlecode.com/svn/trunk@12624 2bbb7eff-a529-9590-31e7-b0007b416f81
This returns true if (1) the picture has finished recording and
(2) this picture or any picture drawn into it refers to any bitmaps.
It allows clients doing complicated manipulations of the picture to
early-out when there are no bitmaps present.
BUG=303281
R=reed@google.com
git-svn-id: http://skia.googlecode.com/svn/trunk@11935 2bbb7eff-a529-9590-31e7-b0007b416f81
SkPicture:
Remove the constructors which take an SkStream as an argument. Rather
than having to check a variable for success, the factory will return
NULL on failure.
Add a protected function for determining if an SkStream is an SKP
to share code with SkTimedPicture.
In the factory, check for a NULL SkStream.
Use a default decoder (from BUG:
https://code.google.com/p/skia/issues/detail?id=1325)
SkDebuggerGUI:
Call SkPicture::CreateFromStream when necessary.
Write a factory for creating SkTimedPictures and use it.
Use the factory throughout tools.
Add include/lazy to utils and effects gyp include_dirs so SkPicture.h
can reference SkImageDecoder.h which references SkBitmapFactory.h (in
include/lazy).
Changes code Chromium uses, so this will require a temporary Skia
and then a change to Chromium to use the new Skia code.
TODO: Create a decoder that does nothing to be used by pinspect,
lua pictures, etc, and allow it to not assert in SkOrderedReadBuffer.
R=reed@google.com
Review URL: https://codereview.chromium.org/17113004
git-svn-id: http://skia.googlecode.com/svn/trunk@9822 2bbb7eff-a529-9590-31e7-b0007b416f81
This change gives more flexibility to the implementation of
EncodeBitmap to prefer calling refEncodedData, doing its own
encode, or even doing both and making a decision about which
to use.
The new function signature also allows the implementation to
tell the ordered write buffer whether to store the pixel offset,
in the case where the encoded bitmap represents the larger
bitmap, or to ignore the pixel offset, in the case where the
implementation only encoded the subset that is used.
Requires changes to chromium to use the new function signature.
(https://codereview.chromium.org/15496006/)
SkPicture:
New API for EncodeBitmap.
SkOrderedReadBuffer:
Ifdef'd out addition of reading the offset.
SkOrderedWriteBuffer:
Never call refEncodedData. Allow the user to call that from their
EncodeBitmap function, if desired.
This addresses https://code.google.com/p/skia/issues/detail?id=1239
Add in ifdef'd out code to record the offset.
PictureTest and PictureRenderer:
Implement the new definition of EncodeBitmap. Also update the name
of the function to meet coding style guidelines.
BUG=https://code.google.com/p/skia/issues/detail?id=1239R=reed@google.com
Review URL: https://codereview.chromium.org/15489004
git-svn-id: http://skia.googlecode.com/svn/trunk@9226 2bbb7eff-a529-9590-31e7-b0007b416f81
Similar goals as https://codereview.chromium.org/14437012.
Builds on patch set 1 from that issue
(https://codereview.chromium.org/14437012/#ps1).
Instead of the changes in patch set 2 from that issue, this
changes SkOrderedWriteBuffer::writeBitmap to store whether an
SkBitmapHeap was used when to store the index of the SkBitmap.
SkOrderedReadBuffer::readBitmap now uses that information to
distinguish between using the heap and unflattening.
In addition, writeBitmap now records the width/height first in
all cases. If now SkBitmapHeapReader is attached, but an
SkBitmapHeap was used to record the bitmap, reading will fail
and provide the same red SkBitmap as in the case where the
SkBitmap was encoded but could not be decoded.
Updates the PICTURE_VERSION as well.
The key differences in this CL to look at are in:
SkOrderedWriteBuffer,
SkOrderedReadBuffer,
and SkPicture.
BUG=
R=djsollen@google.com
Review URL: https://codereview.chromium.org/14230022
git-svn-id: http://skia.googlecode.com/svn/trunk@8917 2bbb7eff-a529-9590-31e7-b0007b416f81
The new pixel ref behaves similarly to SkImageRef, with some key differences:
It does not depend on the images project.
It requires an SkImageCache, which handles allocation and caching of the pixel
memory.
It takes a function signature for decoding which decodes into already allocated
pixel memory rather than into an SkBitmap.
Add two implementations of SkImageCache: SkLruImageCache and SkAshmemImageCache.
Replace SkSerializationHelpers::DecodeBitmap with SkPicture::InstallPixelRefProc,
and update sites that referenced it.
SkBitmapFactory now sets the pixel ref to a new object of the new
class SkLazyPixelRef, provided it has an SkImageCache for caching.
Provide an option to do lazy decodes in render_pictures and bench_pictures.
SkPicture:
Eliminate the default parameters in the constructor.
If a proc for decoding bitmaps is installed, use it to decode any encoded
data in subpictures.
When parsing deserializing subpictures, check for success.
When serializing subpictures, pass the picture's bitmap encoder to the
subpicture's call to serialize.
Update BitmapFactoryTest to test its new behavior.
BUG=https://code.google.com/p/skia/issues/detail?id=1008
BUG=https://code.google.com/p/skia/issues/detail?id=1009
Review URL: https://codereview.appspot.com/7060052
git-svn-id: http://skia.googlecode.com/svn/trunk@7835 2bbb7eff-a529-9590-31e7-b0007b416f81
