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55ca8244cc
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1556 Commits

Author SHA1 Message Date
commit-bot@chromium.org
55ca8244cc Refactor FourByteInterps. Add 64-bit Fast version. Add tests. 
Effect on benches (only _fast_ should be affected, and only on 64-bit):

Desktop (64-bit)
four_byte_interp_slow_255 NONRENDERING c          7.80       7.84      -0.04    -0.5%
four_byte_interp_slow_256 NONRENDERING c          7.38       7.36      +0.02    +0.3%
four_byte_interp_fast_256 NONRENDERING c          4.86       4.38      +0.48    +9.9%
four_byte_interp_fast_255 NONRENDERING c          5.80       5.16      +0.64   +11.0%

N5 (32-bit)
four_byte_interp_slow_256 NONRENDERING c         22.22      22.66      -0.44    -2.0%
four_byte_interp_fast_255 NONRENDERING c         22.22      22.22      +0.00    +0.0%
four_byte_interp_fast_256 NONRENDERING c         18.81      18.81      +0.00    +0.0%
four_byte_interp_slow_255 NONRENDERING c         22.42      22.42      +0.00    +0.0%

BUG=
R=reed@google.com

Author: mtklein@google.com

Review URL: https://codereview.chromium.org/100923003

git-svn-id: http://skia.googlecode.com/svn/trunk@12468 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-12-03 18:53:30 +00:00
robertphillips@google.com
466310dbd3 Move fIsOval from SkPath to SkPathRef 
https://codereview.chromium.org/89123002/



git-svn-id: http://skia.googlecode.com/svn/trunk@12463 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-12-03 16:43:54 +00:00
robertphillips@google.com
ca316f576e Revert of r12450 (Move fIsOval from SkPath to SkPathRef) 
git-svn-id: http://skia.googlecode.com/svn/trunk@12452 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-12-03 00:23:39 +00:00
robertphillips@google.com
31f0ffc9c3 Move fIsOval from SkPath to SkPathRef 
https://codereview.chromium.org/89123002/



git-svn-id: http://skia.googlecode.com/svn/trunk@12450 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-12-02 23:55:11 +00:00
commit-bot@chromium.org
dd59799cf8 SkDiscardablePixelRef objects are now marked immutable. 
I also specifically mentioned in the SkImageGenerator documentation
that it should always return the same information on subsequent calls
to getInfo() and getPixels().

Motivation: When a bitmap is recorded into a SkPicture, it will choose
whether to shallow- or deep-copy itself into the SkBitmapHeap based on
the immutable flag.  Failing to set it would make picture recording slow.

BUG=
R=fmalita@google.com, reed@google.com, scroggo@google.com

Author: halcanary@google.com

Review URL: https://codereview.chromium.org/99303003

git-svn-id: http://skia.googlecode.com/svn/trunk@12445 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-12-02 22:32:54 +00:00
reed@google.com
5c37189ffe restore [6] for setPrefConfigTable, accidentally changed with A1 CL 
BUG=

Review URL: https://codereview.chromium.org/99963002

git-svn-id: http://skia.googlecode.com/svn/trunk@12433 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-12-02 19:50:16 +00:00
bungeman@google.com
1ad75a19a1 Fix spelling errors in SkWeakRefCnt. 
git-svn-id: http://skia.googlecode.com/svn/trunk@12432 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-12-02 19:12:04 +00:00
rmistry@google.com
d6bab02386 Reverting r12427 
git-svn-id: http://skia.googlecode.com/svn/trunk@12428 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-12-02 13:50:38 +00:00
skia.committer@gmail.com
5b39f5ba9c Sanitizing source files in Housekeeper-Nightly 
git-svn-id: http://skia.googlecode.com/svn/trunk@12427 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-12-02 13:36:22 +00:00
mtklein@google.com
ca5bb87a31 DM: write failed comparison mode .pngs one more level deep in the tree. 
E.g.  instead of having to compare
    /tmp/dm/565/optimizations.png
vs.
    /tmp/dm/replay/optimizations_565.png

it's now

    /tmp/dm/565/optimizations.png
vs.
    /tmp/dm/replay/565/optimizations.png

This lets working with skdiff go a lot more smoothly.

BUG=
R=bsalomon@google.com

Review URL: https://codereview.chromium.org/88773002

git-svn-id: http://skia.googlecode.com/svn/trunk@12402 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-26 22:06:12 +00:00
commit-bot@chromium.org
11f392ed53 Revert "Revert "remove kA1_Config, as it is no longer supported"" 
This reverts commit 36d712f2d4c5c79719280ad95523e6aaa88b068e.

BUG=
R=rmistry@google.com, mtklein@google.com

Author: reed@google.com

Review URL: https://codereview.chromium.org/86483002

git-svn-id: http://skia.googlecode.com/svn/trunk@12392 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-26 12:51:57 +00:00
commit-bot@chromium.org
ce33d60187 Adding more validation 
- Added a way to check that the number of inputs of a filter is not more than a filter expects
- Added validation of reftype in SkBitmap::unflatten()
- Added validation on fKD (diffuse lighting constant) and fKS (specular lighting constant) to make sure that they are always non-negative numbers
- Added validation of SkPerlinNoiseShader::fType and SkPerlinNoiseShader::fNumOctaves

BUG=
R=reed@google.com, senorblanco@google.com, mtklein@google.com, senorblanco@chromium.org, sugoi@google.com

Author: sugoi@chromium.org

Review URL: https://codereview.chromium.org/83343003

git-svn-id: http://skia.googlecode.com/svn/trunk@12388 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-25 21:46:31 +00:00
reed@google.com
72e7808d62 Revert "remove kA1_Config, as it is no longer supported" 
This reverts commit 2d72d8b242eac6e9d30228f5b0a407236491c369.

git-svn-id: http://skia.googlecode.com/svn/trunk@12387 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-25 20:54:56 +00:00
commit-bot@chromium.org
4b413c8bb1 remove SkFloatToScalar macro 
BUG=
R=reed@google.com, djsollen@google.com

Author: caryclark@google.com

Review URL: https://codereview.chromium.org/85463005

git-svn-id: http://skia.googlecode.com/svn/trunk@12385 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-25 19:44:07 +00:00
reed@google.com
2a1f4464d1 remove kA1_Config, as it is no longer supported 
BUG=
R=djsollen@google.com

Review URL: https://codereview.chromium.org/83093005

git-svn-id: http://skia.googlecode.com/svn/trunk@12384 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-25 18:58:29 +00:00
commit-bot@chromium.org
eddb02c82d Adding SkDeferredCanvas::NoticifationClient to the exported API. 
R=reed@android.com, robertphillips@google.com, reed, robertphillips
BUG=1861

Author: schenney@chromium.org

Review URL: https://codereview.chromium.org/83383007

git-svn-id: http://skia.googlecode.com/svn/trunk@12380 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-25 15:44:37 +00:00
mtklein@google.com
1950d5f58f Add SK_ALWAYS_INLINE. 
I'm working on some code that's much faster when compiled by GCC than by Clang
because GCC inlines more aggressively.  Using SK_ATTRIBUTE(always_inline) on
the appropriate methods narrows the performance gap considerably.

This should work for MSVC, GCC, and Clang, otherwise falling back to "inline".

BUG=
R=reed@google.com

Review URL: https://codereview.chromium.org/83333005

git-svn-id: http://skia.googlecode.com/svn/trunk@12364 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-22 16:56:22 +00:00
commit-bot@chromium.org
ce0e4efabd Fix VC++ ptr-to-... and va_list confusion 
R=bungeman@google.com

Author: bsalomon@google.com

Review URL: https://codereview.chromium.org/78903006

git-svn-id: http://skia.googlecode.com/svn/trunk@12346 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-21 17:20:17 +00:00
halcanary@google.com
ad04eb49f5 Add SkImageGenerator Interface 
-   Add SkDiscardablePixelRef class that uses SkDiscardableMemory and
    a SkImageGenerator.

-   Add SkDecodingImageGenerator class as an example of a
    SkImageGenerator.

-   Add DecodingImageGenerator unit test.

-   Add SkBasicDiscardableMemory implmentation for unit tests only.

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

Review URL: https://codereview.chromium.org/74793011

git-svn-id: http://skia.googlecode.com/svn/trunk@12341 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-21 15:32:08 +00:00
robertphillips@google.com
a4662865e3 More Windows 64b compilation warning fixes 
https://codereview.chromium.org/47513017/



git-svn-id: http://skia.googlecode.com/svn/trunk@12337 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-21 14:24:16 +00:00
commit-bot@chromium.org
644629c1c7 Implement a benchmark for GrResourceCache 
Adds "grresourcecache_add" and "grresourcecache_find" bench tests to test
GrResourceCache::add and GrResourceCache::find. The tests work only
with GPU backends, since GrResourceCache needs an GrGpu.

Modifies bench tests to override SkBenchmark::isSuitableFor(Backend)
function that specifies what kind of backend the test is inteded
for. This replaces the previous "fIsRendering" flag that would
indicate test that did no rendering.

Adds SkCanvas::getGrContext() call to get the GrContext that the
canvas ends up drawing to. The member function solves a common
use-case that is also used in the benchmark added here.

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

Author: kkinnunen@nvidia.com

Review URL: https://codereview.chromium.org/73643005

git-svn-id: http://skia.googlecode.com/svn/trunk@12334 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-21 06:21:58 +00:00
robertphillips@google.com
8c99c9f4a6 Reverting r12315 (More Windows 64b compilation warning fixes) due to compilation failures 
git-svn-id: http://skia.googlecode.com/svn/trunk@12316 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-20 15:56:14 +00:00
robertphillips@google.com
80051d38a3 More Windows 64b compilation warning fixes 
https://codereview.chromium.org/47513017/



git-svn-id: http://skia.googlecode.com/svn/trunk@12315 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-20 15:46:10 +00:00
mtklein@google.com
0f6dc21e32 Revert SK_REQUIRE_LOCAL_VAR changes for DEPS roll. 
BUG=

Review URL: https://codereview.chromium.org/59703012

git-svn-id: http://skia.googlecode.com/svn/trunk@12306 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-18 20:55:29 +00:00
robertphillips@google.com
701b40543d Fix DocumentTest/SkDocument memory leaks 
https://codereview.chromium.org/72833002/



git-svn-id: http://skia.googlecode.com/svn/trunk@12302 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-18 16:26:25 +00:00
commit-bot@chromium.org
e61a86cfa0 Guard against most unintentionally ephemeral SkAutoFoo instantiations. 
I think I applied the trick everywhere possible.  Limitations:
    - can't be used with templated classes
    - all constructors and destructors must be defined inline

A couple of the SkAutoFoo were unused in Skia, Chromium, and Android, so I
deleted them.  This change caught the same bugs Cary found in SkPath, plus one
more in SampleApp.

BUG=
R=reed@google.com, caryclark@google.com

Author: mtklein@google.com

Review URL: https://codereview.chromium.org/72603005

git-svn-id: http://skia.googlecode.com/svn/trunk@12301 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-18 16:03:59 +00:00
commit-bot@chromium.org
a1a097ee81 increase coverage of SkPath.cpp, remove unused code 
Using Mike Klein's excellent coverage tool, increase the
unit testing of SkPath.cpp from 70% to 95%.

Along the way, determined that these functions were not
maintained or used:

SkPath::pathTo
SkPath::contains

as well as a large block of SkPath::cheapGetDirection().

Changed SkPath::validate() to permit infinities in
the path data points.

Fixed errors in preserving direction.
Fixed error setting direction when convexity is unknown.

Added missing conic to moveTo only detector.

BUG=
R=bsalomon@google.com, reed@google.com

Author: caryclark@google.com

Review URL: https://codereview.chromium.org/65493004

git-svn-id: http://skia.googlecode.com/svn/trunk@12291 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-14 16:53:22 +00:00
skia.committer@gmail.com
73a5d53d96 Sanitizing source files in Housekeeper-Nightly 
git-svn-id: http://skia.googlecode.com/svn/trunk@12283 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-14 07:02:31 +00:00
bungeman@google.com
04306921f4 Remove backward compatibility shims from SkStream.h. 
R=reed@google.com

Review URL: https://codereview.chromium.org/68773009

git-svn-id: http://skia.googlecode.com/svn/trunk@12275 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-13 19:53:46 +00:00
reed@google.com
3443fd8886 move SkImageInfo into its own header 
BUG=
R=djsollen@google.com

Review URL: https://codereview.chromium.org/71813002

git-svn-id: http://skia.googlecode.com/svn/trunk@12273 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-13 19:09:13 +00:00
reed@google.com
ec3ca87d33 Revert "Revert "switch GatherPixelRefs to use SkBaseDevice instead of SkBitmapDevice"" 
This reverts commit ff0152ec5e2a0faf38ae1a317c5d77df08139104.

BUG=

Review URL: https://codereview.chromium.org/68203018

git-svn-id: http://skia.googlecode.com/svn/trunk@12271 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-13 16:02:18 +00:00
reed@google.com
5308c83a36 drawPosTextOnPath is now deprecated, removing all overrides and impls 
BUG=
R=djsollen@google.com

Review URL: https://codereview.chromium.org/61743017

git-svn-id: http://skia.googlecode.com/svn/trunk@12270 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-13 15:22:15 +00:00
reed@google.com
4d16470973 Revert "switch GatherPixelRefs to use SkBaseDevice instead of SkBitmapDevice" 
This reverts commit 72958c374bdb9457419beeba7de1387da3293882.

BUG=

Review URL: https://codereview.chromium.org/58933007

git-svn-id: http://skia.googlecode.com/svn/trunk@12260 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-12 22:27:30 +00:00
reed@google.com
3f4bf51edd switch GatherPixelRefs to use SkBaseDevice instead of SkBitmapDevice 
BUG=
R=robertphillips@google.com, scroggo@google.com

Review URL: https://codereview.chromium.org/70473003

git-svn-id: http://skia.googlecode.com/svn/trunk@12259 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-12 22:14:08 +00:00
commit-bot@chromium.org
21a0b10d7c Remove deprecated setIsOpaque() API from SkBitmap. 
Clients we care (Blink, Chromium) were updated, so we can remove this now.

BUG=None
R=bsalomon@google.com, reed@google.com

Author: tfarina@chromium.org

Review URL: https://codereview.chromium.org/66723017

git-svn-id: http://skia.googlecode.com/svn/trunk@12251 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-12 18:16:34 +00:00
reed@google.com
23be7a58d9 add colortable enum to SkImage to ease interop between it and SkBitmap::Config 
BUG=
R=halcanary@google.com, scroggo@google.com

Review URL: https://codereview.chromium.org/68853003

git-svn-id: http://skia.googlecode.com/svn/trunk@12245 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-12 16:11:07 +00:00
bungeman@google.com
b3d154de5e Remove SK_FONTHOST_USES_FONTMGR. 
Review URL: https://codereview.chromium.org/66783003

git-svn-id: http://skia.googlecode.com/svn/trunk@12217 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-11 15:53:29 +00:00
robertphillips@google.com
a3d0119859 Re-enable SK_ATTR_DEPRECATED (i.e., revert r12067) 
git-svn-id: http://skia.googlecode.com/svn/trunk@12209 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-10 14:40:21 +00:00
commit-bot@chromium.org
11e5b972a9 Add sk_float_rsqrt with SSE + NEON fast paths. 
Current numbers:

N4:
running bench [640 480]      math_fastIsqrt    NONRENDERING: cmsecs =      3.12
running bench [640 480]      math_slowIsqrt    NONRENDERING: cmsecs =      4.82
running bench [640 480] math_sk_float_rsqrt    NONRENDERING: cmsecs =      1.99

Desktop:
running bench [640 480]      math_fastIsqrt    NONRENDERING: cmsecs =      0.89
running bench [640 480]      math_slowIsqrt    NONRENDERING: cmsecs =      0.94
running bench [640 480] math_sk_float_rsqrt    NONRENDERING: cmsecs =      0.09

Haven't found any other benches where this is a significant effect yet.

BUG=
R=reed@google.com

Author: mtklein@google.com

Review URL: https://codereview.chromium.org/60083014

git-svn-id: http://skia.googlecode.com/svn/trunk@12203 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-08 20:14:16 +00:00
commit-bot@chromium.org
8f457e3230 Adding error checks to SkRBuffer 
BUG=
R=robertphillips@google.com, bsalomon@google.com, reed@google.com

Author: sugoi@chromium.org

Review URL: https://codereview.chromium.org/61913002

git-svn-id: http://skia.googlecode.com/svn/trunk@12202 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-08 19:22:57 +00:00
scroggo@google.com
a8e33a92e2 Add ability to ninepatch blurred rounded rectangle 
Speed up drawing large blurry round rectangles by converting them to
nine patches.

SkDraw:
Add drawRRect.

SkBitmapDevice:
Call SkDraw::drawRRect instead of converting SkRRect to an SkPath.

SkMaskFilter/SkBlurMaskFilter:
Create a nine patch of a blurred round rect and draw it instead of
drawing the entire thing.

SkPDFDevice:
Override drawRRect to perform the old behavior in
SkBitmapDevice::drawRect.

Depends on https://codereview.chromium.org/52703003

Tests are in https://codereview.chromium.org/52793005

BUG=https://b.corp.google.com/issue?id=11174385
R=reed@google.com, robertphillips@google.com

Review URL: https://codereview.chromium.org/48623006

git-svn-id: http://skia.googlecode.com/svn/trunk@12198 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-08 18:02:53 +00:00
commit-bot@chromium.org
c78b8f2f73 Removed unnecessary define 
BUG=
R=bsalomon@google.com, sugoi@google.com

Author: sugoi@chromium.org

Review URL: https://codereview.chromium.org/59033009

git-svn-id: http://skia.googlecode.com/svn/trunk@12189 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-08 15:24:12 +00:00
reed@google.com
126f7f5244 Revert "Revert "speed up A8 by creating a new entry-point in SkDraw that blits the path's coverage directly into an A8 target, regardless of the previous pixel values."" 
This reverts commit 3c77887b3eb2d32ab668ab4e5f2f9e79103956e8.

BUG=

Review URL: https://codereview.chromium.org/50673005

git-svn-id: http://skia.googlecode.com/svn/trunk@12167 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-07 16:06:53 +00:00
commit-bot@chromium.org
6e3e42296b Break up SkLazyPixelRef functionally into class hierarchy. 
The reason for this CL is to allow greater decoder flexibility.
Chrome currently uses its own decoding functions.  These allow for
greater flexibility in dealing with images with multiple frames or
partial data.  The DecodeProc function was not flexible enough to
handle these.  Instead of asking the decoder to squeeze everything
into the DecodeProc, we now ask the downstream library to inherit from
SkCachingPixelRef.  If WebKit's LazyDecodingPixelRef is re-tooled to
inherit from SkCachingPixelRef, then it can make use of Skia's caching
ability while still allowing it to deal with multiple frames, scaling,
subsetting, and partial data.

-   The abstract SkCachingPixelRef class handles caching the decoded
    data in a SkScaledImageCache.  This class relies on the virtual
    functions onDecodeInfo() and onDecode() to do the actual decoding
    of data.

-   The SkLazyCachingPixelRef class is derived from SkCachingPixelRef.
    It provides an implementation of onDecodeInfo() and onDecode() in
    terms of calls to a SkBitmapFactory::DecodeProc function.  It also
    provides an Install() static method which installs a new
    SkLazyCachingPixelRef into a SkBitmap.

SkLazyCachingPixelRef exists for two reasons: to test
SkCachingPixelRef within Skia and as an example for downstream
developers to make their own classes that inherit from
SkCachingPixelRef.

-   The CachedDecodingPixelRefTest was updated to test the
    SkLazyCachingPixelRef class and indirectly the SkCachingPixelRef
    class.

BUG=
R=reed@google.com, scroggo@google.com

Author: halcanary@google.com

Review URL: https://codereview.chromium.org/54203006

git-svn-id: http://skia.googlecode.com/svn/trunk@12149 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-06 10:08:30 +00:00
scroggo@google.com
20e3cd2c9f Add SkRRect::transform. 
Much like SkPath::transform, it transforms an SkRRect based on an
SkMatrix. Unlike SkPath::transform, it will fail for matrices that
contain perspective or skewing.

Required by a future change (https://codereview.chromium.org/48623006)
to speed up drawing large blurry rounded rectangles by using ninepatches.

TODO: This could easily support 90 degree rotations, if desired.

BUG=https://b.corp.google.com/issue?id=11174385
R=reed@google.com, robertphillips@google.com

Review URL: https://codereview.chromium.org/52703003

git-svn-id: http://skia.googlecode.com/svn/trunk@12132 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-05 15:54:42 +00:00
commit-bot@chromium.org
4faa869cda Checking structure sizes before reading them from memory to avoid overflowing the buffer's stream. 
BUG=
R=reed@google.com, mtklein@google.com, senorblanco@chromium.org

Committed: https://code.google.com/p/skia/source/detail?r=12114

Committed: https://code.google.com/p/skia/source/detail?r=12119

Author: sugoi@chromium.org

Review URL: https://codereview.chromium.org/41253002

git-svn-id: http://skia.googlecode.com/svn/trunk@12130 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-05 15:46:56 +00:00
commit-bot@chromium.org
fedf13d73a Add SK_PREFETCH and use in SkBlurImageFilter. 
Relative speed is 1.2-1.6x on desktop, 1.0-1.2x on Nexus 4.

(Division remains the bottleneck, now more so.)

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

Author: mtklein@google.com

Review URL: https://codereview.chromium.org/57823003

git-svn-id: http://skia.googlecode.com/svn/trunk@12129 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-05 15:03:26 +00:00
commit-bot@chromium.org
d3e5842db0 Avoid re-rendering stencil clip for every draw with reducable clip stack 
Fixes the cases where clip stack reduction would cause clip to be
re-rendered to stencil for each draw call. This causes unneeded
slowdown.

Stencil cache would not be used because the clip stack generation id communicated
by the clip stack element list would be invalid. This happended due to

 a) clip stack reduction creating new elements in the element list.

 b) purging logic removing the generation id, but reduction logic
    selecting already purged element, and thus the generation id, as
    the representative state of the clip.

Cases of a) where reduction would flatten the stack to a single new
element were fixed by assigning the generation id of the top-most
element of the clip stack as the generation id of the new
element. This is not strictly minimal, but enables more caching than
using invalid id.

Cases of a) where reduction would substitute a stack element with a
new element the generation id of the substituted element is used.

The b) part was fixed by removing the purging logic. It was not
exactly correct, as the previously purged states were actually
used. The purging was not used for anything.

Changes SkClipStack API to highlight that invalid generation id is
never returned by SkClipStack. Empty stacks are wide open. Changes the
clients to reflect this.

Fixes a crash when not passing anti-alias out parameter to
GrReducedClip::ReduceClipStack. The crash is not exercised in the
current code.

Committed: http://code.google.com/p/skia/source/detail?r=12084

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

Author: kkinnunen@nvidia.com

Review URL: https://codereview.chromium.org/48593003

git-svn-id: http://skia.googlecode.com/svn/trunk@12127 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-05 15:03:08 +00:00
reed@google.com
12a23866fe Revert "Checking structure sizes before reading them from memory to avoid overflowing the buffer's stream." 
This reverts commit 6bc22e8ef1ea70a1b58409aa21254358c50f149a.

git-svn-id: http://skia.googlecode.com/svn/trunk@12124 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-04 21:35:55 +00:00
reed@google.com
84e922bfb3 Revert "speed up A8 by creating a new entry-point in SkDraw that blits the path's coverage directly into an A8 target, regardless of the previous pixel values." 
This reverts commit d615e839b71f75df895de6850b774a9e1c28ad2a.

Revert "must initialize SkDraw.fClip"

This reverts commit 108e46d29b5f57927fc8b8c403bb52019d8cb16d.

BUG=

Review URL: https://codereview.chromium.org/57883006

git-svn-id: http://skia.googlecode.com/svn/trunk@12122 2bbb7eff-a529-9590-31e7-b0007b416f81
 2013-11-04 20:57:36 +00:00