aboutsummaryrefslogtreecommitdiffhomepage
path: root/src/core/SkBitmap.cpp
Commit message (Collapse)AuthorAge
* Revert "Revert of setConfig -> setInfo ↵Gravatar commit-bot@chromium.org2014-05-30
| | | | | | | | | | | | | | (https://codereview.chromium.org/308683005/)" This reverts commit eecaea4148805834f223681f70b6488ceba12d09. R=robertphillips@google.com, scroggo@google.com Author: reed@google.com Review URL: https://codereview.chromium.org/301283003 git-svn-id: http://skia.googlecode.com/svn/trunk@14989 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fixing a clusterfuzz found issueGravatar commit-bot@chromium.org2014-05-30
| | | | | | | | | | | BUG=378175 R=reed@google.com, sugoi@google.com Author: sugoi@chromium.org Review URL: https://codereview.chromium.org/306033003 git-svn-id: http://skia.googlecode.com/svn/trunk@14983 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert of setConfig -> setInfo (https://codereview.chromium.org/308683005/)Gravatar commit-bot@chromium.org2014-05-29
| | | | | | | | | | | | | | | | | | | | | | | | Reason for revert: broke all Windows bots Original issue's description: > setConfig -> setInfo > > BUG=skia: > > Committed: http://code.google.com/p/skia/source/detail?r=14978 R=robertphillips@google.com, reed@google.com TBR=reed@google.com, robertphillips@google.com NOTREECHECKS=true NOTRY=true BUG=skia: Author: epoger@google.com Review URL: https://codereview.chromium.org/302053002 git-svn-id: http://skia.googlecode.com/svn/trunk@14979 2bbb7eff-a529-9590-31e7-b0007b416f81
* setConfig -> setInfoGravatar commit-bot@chromium.org2014-05-29
| | | | | | | | | | | BUG=skia: R=robertphillips@google.com Author: reed@google.com Review URL: https://codereview.chromium.org/308683005 git-svn-id: http://skia.googlecode.com/svn/trunk@14978 2bbb7eff-a529-9590-31e7-b0007b416f81
* replace config() with colorType()Gravatar commit-bot@chromium.org2014-05-29
| | | | | | | | | | | BUG=skia: R=robertphillips@google.com Author: reed@google.com Review URL: https://codereview.chromium.org/303543009 git-svn-id: http://skia.googlecode.com/svn/trunk@14959 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert "Revert of add colortable support to imagegenerator ↵Gravatar commit-bot@chromium.org2014-05-29
| | | | | | | | | | | | | | | | | (https://codereview.chromium.org/304443003/)" Fix is to add colortable param to installPixels() This reverts commit 924205aaf2e0c3c65dda13e0eaccde3e7b2a5c40. BUG=skia: R=scroggo@google.com, reed@chromium.org Author: reed@google.com Review URL: https://codereview.chromium.org/300263005 git-svn-id: http://skia.googlecode.com/svn/trunk@14958 2bbb7eff-a529-9590-31e7-b0007b416f81
* remove SkBitmap::asImageInfoGravatar commit-bot@chromium.org2014-05-27
| | | | | | | | | | | BUG=skia: R=scroggo@google.com, halcanary@google.com Author: reed@google.com Review URL: https://codereview.chromium.org/305483005 git-svn-id: http://skia.googlecode.com/svn/trunk@14909 2bbb7eff-a529-9590-31e7-b0007b416f81
* remove SK_SUPPORT_LEGACY_BITMAPFLATTEN codeGravatar commit-bot@chromium.org2014-05-27
| | | | | | | | | | | BUG=skia: R=scroggo@google.com, reed@google.com Author: reed@chromium.org Review URL: https://codereview.chromium.org/303563002 git-svn-id: http://skia.googlecode.com/svn/trunk@14888 2bbb7eff-a529-9590-31e7-b0007b416f81
* Sanitizing source files in Housekeeper-NightlyGravatar skia.committer@gmail.com2014-05-24
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@14884 2bbb7eff-a529-9590-31e7-b0007b416f81
* stop calling SkBitmap::flattenGravatar commit-bot@chromium.org2014-05-23
| | | | | | | | | | | BUG=skia: R=scroggo@google.com, halcanary@google.com Author: reed@google.com Review URL: https://codereview.chromium.org/295793002 git-svn-id: http://skia.googlecode.com/svn/trunk@14867 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert of Revert ""Revert of eliminate config param -- it was always self's ↵Gravatar commit-bot@chromium.org2014-05-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | config (https://codereview.chromi… (https://codereview.chromium.org/291163005/) Reason for revert: broke 6 webgl/canvas tests in blink (don't know why yet) https://storage.googleapis.com/chromium-layout-test-archives/WebKit_Mac10_7/27348/layout-test-results/results.html Original issue's description: > Revert ""Revert of eliminate config param -- it was always self's config (https://codereview.chromium.org/246513002/)""" > > This reverts commit 3dbceb4f8283b2fb1728d0daf010d036099a2eae. > > BUG=skia: > > Committed: http://code.google.com/p/skia/source/detail?r=14806 R=bsalomon@google.com, robertphillips@google.com TBR=bsalomon@google.com, robertphillips@google.com NOTREECHECKS=true NOTRY=true BUG=skia: Author: reed@google.com Review URL: https://codereview.chromium.org/295093003 git-svn-id: http://skia.googlecode.com/svn/trunk@14826 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert ""Revert of eliminate config param -- it was always self's config ↵Gravatar commit-bot@chromium.org2014-05-20
| | | | | | | | | | | | | | | (https://codereview.chromium.org/246513002/)""" This reverts commit 3dbceb4f8283b2fb1728d0daf010d036099a2eae. BUG=skia: R=bsalomon@google.com, robertphillips@google.com Author: reed@google.com Review URL: https://codereview.chromium.org/291163005 git-svn-id: http://skia.googlecode.com/svn/trunk@14806 2bbb7eff-a529-9590-31e7-b0007b416f81
* "Revert of eliminate config param -- it was always self's config ↵Gravatar reed@google.com2014-05-20
| | | | | | | | (https://codereview.chromium.org/246513002/)"" This reverts commit 65b9f33cab9f53821720f982667412e56a340093. git-svn-id: http://skia.googlecode.com/svn/trunk@14795 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert "Revert of eliminate config param -- it was always self's config ↵Gravatar commit-bot@chromium.org2014-05-19
| | | | | | | | | | | | (https://codereview.chromium.org/246513002/)" TBR=bsalomon@google.com Author: reed@google.com Review URL: https://codereview.chromium.org/290883005 git-svn-id: http://skia.googlecode.com/svn/trunk@14785 2bbb7eff-a529-9590-31e7-b0007b416f81
* remove dead mipmap code from SkBitmapGravatar commit-bot@chromium.org2014-05-07
| | | | | | | | | | | BUG=skia: R=fmalita@google.com, fmalita@chromium.org Author: reed@google.com Review URL: https://codereview.chromium.org/271693002 git-svn-id: http://skia.googlecode.com/svn/trunk@14611 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert of eliminate config param -- it was always self's config ↵Gravatar commit-bot@chromium.org2014-04-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | (https://codereview.chromium.org/246513002/) Reason for revert: Causes some layout_test failures around texture backed bitmaps. Test names and crash logs accessible via: https://storage.googleapis.com/chromium-layout-test-archives/linux_layout/13845/layout-test-results/results.html Original issue's description: > eliminate config param -- it was always self's config > > BUG=skia: > R=bsalomon@google.com > > Committed: https://code.google.com/p/skia/source/detail?r=14303 R=reed@google.com TBR=reed@google.com NOTREECHECKS=true NOTRY=true BUG=skia: Author: bsalomon@google.com Review URL: https://codereview.chromium.org/249373003 git-svn-id: http://skia.googlecode.com/svn/trunk@14324 2bbb7eff-a529-9590-31e7-b0007b416f81
* expose CGImage -> SkBitmapGravatar commit-bot@chromium.org2014-04-22
| | | | | | | | | | | BUG=skia: R=scroggo@google.com, halcanary@google.com Author: reed@google.com Review URL: https://codereview.chromium.org/243463005 git-svn-id: http://skia.googlecode.com/svn/trunk@14315 2bbb7eff-a529-9590-31e7-b0007b416f81
* eliminate config param -- it was always self's configGravatar reed@google.com2014-04-22
| | | | | | | | | BUG=skia: R=bsalomon@google.com Review URL: https://codereview.chromium.org/246513002 git-svn-id: http://skia.googlecode.com/svn/trunk@14303 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert of Revert of Rename kPMColor_SkColorType to kN32_SkColorType. ↵Gravatar commit-bot@chromium.org2014-04-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (https://codereview.chromium.org/234243002/) Reason for revert: Want to reland the original CL. Original issue's description: > Revert of Rename kPMColor_SkColorType to kN32_SkColorType. (https://codereview.chromium.org/227433009/) > > Reason for revert: > breaking the Chrome deps roll. > http://build.chromium.org/p/chromium.linux/builders/Linux%20GN%20%28dbg%29/builds/839/steps/compile/logs/stdio > > Original issue's description: > > Rename kPMColor_SkColorType to kN32_SkColorType. > > > > The new name better represents what this flag means. > > > > BUG=skia:2384 > > > > Committed: http://code.google.com/p/skia/source/detail?r=14117 > > TBR=reed@google.com,scroggo@google.com > NOTREECHECKS=true > NOTRY=true > BUG=skia:2384 > > Committed: http://code.google.com/p/skia/source/detail?r=14144 R=reed@google.com, bensong@google.com TBR=bensong@google.com, reed@google.com NOTREECHECKS=true NOTRY=true BUG=skia:2384 Author: scroggo@google.com Review URL: https://codereview.chromium.org/235523003 git-svn-id: http://skia.googlecode.com/svn/trunk@14156 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert of Rename kPMColor_SkColorType to kN32_SkColorType. ↵Gravatar commit-bot@chromium.org2014-04-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | (https://codereview.chromium.org/227433009/) Reason for revert: Chrome's side of define changes not easy to figure out quickly. Reverting this for DEPS roll for now. Original issue's description: > Rename kPMColor_SkColorType to kN32_SkColorType. > > The new name better represents what this flag means. > > BUG=skia:2384 > > Committed: http://code.google.com/p/skia/source/detail?r=14117 R=reed@google.com, scroggo@google.com TBR=reed@google.com, scroggo@google.com NOTREECHECKS=true NOTRY=true BUG=skia:2384 Author: bensong@google.com Review URL: https://codereview.chromium.org/234833003 git-svn-id: http://skia.googlecode.com/svn/trunk@14149 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert of Revert of Rename kPMColor_SkColorType to kN32_SkColorType. ↵Gravatar commit-bot@chromium.org2014-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (https://codereview.chromium.org/234243002/) Reason for revert: fixes on the chrome side are landing (brettw), keep fingers crossed. Original issue's description: > Revert of Rename kPMColor_SkColorType to kN32_SkColorType. (https://codereview.chromium.org/227433009/) > > Reason for revert: > breaking the Chrome deps roll. > http://build.chromium.org/p/chromium.linux/builders/Linux%20GN%20%28dbg%29/builds/839/steps/compile/logs/stdio > > Original issue's description: > > Rename kPMColor_SkColorType to kN32_SkColorType. > > > > The new name better represents what this flag means. > > > > BUG=skia:2384 > > > > Committed: http://code.google.com/p/skia/source/detail?r=14117 > > TBR=reed@google.com,scroggo@google.com > NOTREECHECKS=true > NOTRY=true > BUG=skia:2384 > > Committed: http://code.google.com/p/skia/source/detail?r=14144 R=reed@google.com, scroggo@google.com TBR=reed@google.com, scroggo@google.com NOTREECHECKS=true NOTRY=true BUG=skia:2384 Author: bensong@google.com Review URL: https://codereview.chromium.org/233813004 git-svn-id: http://skia.googlecode.com/svn/trunk@14145 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert of Rename kPMColor_SkColorType to kN32_SkColorType. ↵Gravatar commit-bot@chromium.org2014-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | (https://codereview.chromium.org/227433009/) Reason for revert: breaking the Chrome deps roll. http://build.chromium.org/p/chromium.linux/builders/Linux%20GN%20%28dbg%29/builds/839/steps/compile/logs/stdio Original issue's description: > Rename kPMColor_SkColorType to kN32_SkColorType. > > The new name better represents what this flag means. > > BUG=skia:2384 > > Committed: http://code.google.com/p/skia/source/detail?r=14117 R=reed@google.com, scroggo@google.com TBR=reed@google.com, scroggo@google.com NOTREECHECKS=true NOTRY=true BUG=skia:2384 Author: bensong@google.com Review URL: https://codereview.chromium.org/234243002 git-svn-id: http://skia.googlecode.com/svn/trunk@14144 2bbb7eff-a529-9590-31e7-b0007b416f81
* Rename kPMColor_SkColorType to kN32_SkColorType.Gravatar commit-bot@chromium.org2014-04-09
| | | | | | | | | | | | | The new name better represents what this flag means. BUG=skia:2384 R=reed@google.com Author: scroggo@google.com Review URL: https://codereview.chromium.org/227433009 git-svn-id: http://skia.googlecode.com/svn/trunk@14117 2bbb7eff-a529-9590-31e7-b0007b416f81
* fix SkBitmap::erase to handle RGBA and BGRAGravatar commit-bot@chromium.org2014-03-27
| | | | | | | | | | | BUG=skia:2352 R=mtklein@google.com Author: reed@google.com Review URL: https://codereview.chromium.org/212643014 git-svn-id: http://skia.googlecode.com/svn/trunk@13964 2bbb7eff-a529-9590-31e7-b0007b416f81
* Allow toString capability to be toggled independent of developer mode.Gravatar commit-bot@chromium.org2014-03-13
| | | | | | | | | | | | 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
* remove SK_SUPPORT_LEGACY_COPYTO_CONFIGGravatar commit-bot@chromium.org2014-03-12
| | | | | | | | | | 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
* remove SK_SUPPORT_DEEPCOPYTO_CONFIG code -- no longer usedGravatar commit-bot@chromium.org2014-03-05
| | | | | | | | | | | R=reed@google.com TBR=bsalomon@google.com Author: reed@chromium.org Review URL: https://codereview.chromium.org/183763035 git-svn-id: http://skia.googlecode.com/svn/trunk@13664 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fix compile errors in legacy copyTo().Gravatar senorblanco@chromium.org2014-02-24
| | | | | | | | R=reed@google.com, reed Review URL: https://codereview.chromium.org/178003002 git-svn-id: http://skia.googlecode.com/svn/trunk@13562 2bbb7eff-a529-9590-31e7-b0007b416f81
* add new copyTo version to SkBitmap, which takes SkColorTypeGravatar commit-bot@chromium.org2014-02-23
| | | | | | | | | | | BUG=skia: R=scroggo@google.com, halcanary@google.com, bsalomon@google.com Author: reed@google.com Review URL: https://codereview.chromium.org/171723007 git-svn-id: http://skia.googlecode.com/svn/trunk@13553 2bbb7eff-a529-9590-31e7-b0007b416f81
* Offer single-param version of deepCopyTo -- much easier to migrate to colortypesGravatar commit-bot@chromium.org2014-02-20
| | | | | | | | | | | BUG=skia: R=reed@google.com Author: reed@chromium.org Review URL: https://codereview.chromium.org/167683006 git-svn-id: http://skia.googlecode.com/svn/trunk@13516 2bbb7eff-a529-9590-31e7-b0007b416f81
* revert to previous behavior in installPixels, allowing for NULL addressGravatar reed@google.com2014-02-19
| | | | | | | | BUG=skia: Review URL: https://codereview.chromium.org/172603002 git-svn-id: http://skia.googlecode.com/svn/trunk@13501 2bbb7eff-a529-9590-31e7-b0007b416f81
* installPixels returns true if null-pixels -- devolving to setConfigGravatar commit-bot@chromium.org2014-02-18
| | | | | | | | | | | | fixes assumptions in chrome's ui_unittests: RenderTextTest.SelectionKeepsLigatures R=robertphillips@google.com, bsalomon@google.com Author: reed@google.com Review URL: https://codereview.chromium.org/170713006 git-svn-id: http://skia.googlecode.com/svn/trunk@13492 2bbb7eff-a529-9590-31e7-b0007b416f81
* replace SkBitmap::Config with SkColorType in gmsGravatar commit-bot@chromium.org2014-02-17
| | | | | | | | | | | | | add helper installMaskPixels() to SkBitmap BUG=skia: R=halcanary@google.com Author: reed@google.com Review URL: https://codereview.chromium.org/169913003 git-svn-id: http://skia.googlecode.com/svn/trunk@13482 2bbb7eff-a529-9590-31e7-b0007b416f81
* restore old behavior of setPixels(): lockPixels after installPixels()Gravatar mike@reedtribe.org2014-02-16
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@13468 2bbb7eff-a529-9590-31e7-b0007b416f81
* Sanitizing source files in Housekeeper-NightlyGravatar skia.committer@gmail.com2014-02-14
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@13447 2bbb7eff-a529-9590-31e7-b0007b416f81
* ensure that opaque-only colortypes always report opaque-alphatypeGravatar commit-bot@chromium.org2014-02-13
| | | | | | | | | | | BUG=skia: R=scroggo@google.com, djsollen@google.com, reed@google.com Author: reed@chromium.org Review URL: https://codereview.chromium.org/164233006 git-svn-id: http://skia.googlecode.com/svn/trunk@13443 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fixed clusterfuzz found crashGravatar commit-bot@chromium.org2014-02-13
| | | | | | | | | | | BUG=343461 R=senorblanco@google.com, senorblanco@chromium.org, reed@chromium.org, reed@google.com Author: sugoi@chromium.org Review URL: https://codereview.chromium.org/162943003 git-svn-id: http://skia.googlecode.com/svn/trunk@13439 2bbb7eff-a529-9590-31e7-b0007b416f81
* SkBitmap now really stores SkImageInfo -- config is just a ruseGravatar commit-bot@chromium.org2014-02-11
| | | | | | | | | | | BUG=skia: R=scroggo@google.com Author: reed@google.com Review URL: https://codereview.chromium.org/159653004 git-svn-id: http://skia.googlecode.com/svn/trunk@13411 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert "SkBitmap now really stores SkImageInfo -- config is just a ruse"Gravatar mike@reedtribe.org2014-02-11
| | | | | | | | BUG=skia: Review URL: https://codereview.chromium.org/147733004 git-svn-id: http://skia.googlecode.com/svn/trunk@13395 2bbb7eff-a529-9590-31e7-b0007b416f81
* fix test for empty configGravatar mike@reedtribe.org2014-02-11
| | | | | | | | | | handle empty setconfig BUG=skia: Review URL: https://codereview.chromium.org/159533002 git-svn-id: http://skia.googlecode.com/svn/trunk@13394 2bbb7eff-a529-9590-31e7-b0007b416f81
* Sanitizing source files in Housekeeper-NightlyGravatar skia.committer@gmail.com2014-02-11
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@13393 2bbb7eff-a529-9590-31e7-b0007b416f81
* fix warningsGravatar mike@reedtribe.org2014-02-11
| | | | | | | | BUG=skia: Review URL: https://codereview.chromium.org/153003005 git-svn-id: http://skia.googlecode.com/svn/trunk@13392 2bbb7eff-a529-9590-31e7-b0007b416f81
* SkBitmap now really stores SkImageInfo -- config is just a ruseGravatar mike@reedtribe.org2014-02-11
| | | | | | | | (edited) clone of https://codereview.chromium.org/159173004/ Review URL: https://codereview.chromium.org/159463003 git-svn-id: http://skia.googlecode.com/svn/trunk@13391 2bbb7eff-a529-9590-31e7-b0007b416f81
* remove SK_SUPPORT_LEGACY_ONLOCKPIXELS completelyGravatar reed@google.com2014-02-10
| | | | | | | | BUG=skia: Review URL: https://codereview.chromium.org/158893005 git-svn-id: http://skia.googlecode.com/svn/trunk@13382 2bbb7eff-a529-9590-31e7-b0007b416f81
* pass in the real rowBytesGravatar reed@google.com2014-02-05
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@13328 2bbb7eff-a529-9590-31e7-b0007b416f81
* Refactor read and write buffers.Gravatar commit-bot@chromium.org2014-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* change setAlphaType to not modify the pixelref's genIDGravatar reed@google.com2014-01-28
| | | | | | | | | BUG=skia: R=bsalomon@google.com, halcanary@google.com Review URL: https://codereview.chromium.org/137263009 git-svn-id: http://skia.googlecode.com/svn/trunk@13219 2bbb7eff-a529-9590-31e7-b0007b416f81
* add optional SkAlphaType parameter to notifyPixelsChangedGravatar commit-bot@chromium.org2014-01-27
| | | | | | | | | | R=scroggo@google.com, halcanary@google.com, robertphillips@google.com Author: reed@google.com Review URL: https://codereview.chromium.org/147213002 git-svn-id: http://skia.googlecode.com/svn/trunk@13192 2bbb7eff-a529-9590-31e7-b0007b416f81
* Sanitizing source files in Housekeeper-NightlyGravatar skia.committer@gmail.com2014-01-26
| | | | git-svn-id: http://skia.googlecode.com/svn/trunk@13185 2bbb7eff-a529-9590-31e7-b0007b416f81
* add legacy/helper allocN32Pixels, and convert gm to use itGravatar reed@google.com2014-01-25
| | | | | | | | | | | | This is an intermediate api, but might help us quickly get to a point where no one is creating bitmaps in a 2-step process (setConfig + alloc). BUG=skia: R=halcanary@google.com Review URL: https://codereview.chromium.org/140593005 git-svn-id: http://skia.googlecode.com/svn/trunk@13182 2bbb7eff-a529-9590-31e7-b0007b416f81