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brianosman 0586f5cc97 sRGB support for distance field text.
Add a second distance field adjust table that only applies contrast,
not fake-gamma correction. Store a flag in the batch at creation time,
using the same logic we apply elsewhere (render target format, plus
paint flags).

That gets us close, but not as good as bitmap text. The final step is
to use a linear step function (rather than smoothstep) to map distance
to coverage, when we have sRGB output. Smoothstep's nonlinear response
is actually doing some fake-gamma, so it ends up over-correcting when
the output is already gamma-correct.

Results are now very close between L32 (old table, smoothstep) and S32
(contrast-only table, linstep).

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1885613002

Review URL: https://codereview.chromium.org/1885613002
2016-04-12 12:48:21 -07:00
animations first cut at a checkbox 2009-10-21 19:41:10 +00:00
bench SkWStream::writeText inlined. 2016-04-11 19:41:48 -07:00
bin Fix gyp-and-sync for windows 2016-02-22 12:59:53 -08:00
cmake Move SkGLContext and some GrGLInterface implementations to skgputest module 2016-03-30 18:56:20 -07:00
debugger Fix old debugger for sk_sp changes 2016-03-25 07:04:35 -07:00
dm Convert some unit tests from running on GL contexts to running on all contexts 2016-04-11 14:40:50 -07:00
example switch surface to sk_sp 2016-03-23 18:59:25 -07:00
experimental Rename EmitArgs::fSamplers to fTexSamplers 2016-04-11 12:18:09 -07:00
fuzz Make fuzz builds set SK_FUZZ_LOGGING 2016-04-12 12:02:59 -07:00
gm Remove SimpleOffsetFilter 2016-04-12 12:41:00 -07:00
gyp Make fuzz builds set SK_FUZZ_LOGGING 2016-04-12 12:02:59 -07:00
include Switch AlphaThresholdFilter over to new onFilterImage interface 2016-04-12 11:02:25 -07:00
infra More iOS swarming bot fixes 2016-04-06 11:38:55 -07:00
platform_tools iOS: Tweak xcodebuild location 2016-04-12 06:21:47 -07:00
resources Parse icc profiles and exif orientation from jpeg markers 2016-03-21 08:04:40 -07:00
samplecode Update LightingImageFilter to sk_sp 2016-04-08 16:28:09 -07:00
site Add note about Chromium's use of old libstdc++ to docs. 2016-03-21 07:46:28 -07:00
src sRGB support for distance field text. 2016-04-12 12:48:21 -07:00
tests Make more unit tests run on Vulkan 2016-04-12 09:59:58 -07:00
third_party Make is_ktx safer 2016-04-12 07:41:22 -07:00
tools GYP_DEFINES and DM flags for Vulkan bot 2016-04-12 08:13:57 -07:00
.gitignore Ignore sampleapp_prefs.txt in git. 2016-03-24 12:20:02 -07:00
AUTHORS Add AVX/AVX2 support for runtime check 2016-04-08 15:31:45 -07:00
codereview.settings Automatically add a docs preview link and NOTRY=true when there are only docs changes. 2015-02-26 10:16:13 -08:00
CONTRIBUTING Fix references to https://sites.google.com/site/skiadocs/. 2015-02-03 13:12:54 -02:00
CQ_COMMITTERS Moved committer list to chrome-infra-auth and deleted it from the repo 2015-09-02 13:37:54 -07:00
DEPS Enable RAW codec for Windows 2016-04-06 06:47:15 -07:00
Doxyfile Documentation: SkCanvas API 2015-05-19 10:21:29 -07:00
gyp_skia Make Win runtime DLLs writeable before overwriting 2016-03-18 08:33:38 -07:00
gyp_skia.py Roll gyp deps from 1765 to 1796. 2013-11-21 18:11:14 +00:00
LICENSE Include resources directory in google3 sync. 2015-10-20 13:00:48 -07:00
make.bat Fix references to https://sites.google.com/site/skiadocs/. 2015-02-03 13:12:54 -02:00
make.py GYP: remove stale skia_scalar gyp variable 2015-11-10 13:25:12 -05:00
Makefile Add visualbench as valid target to Makefile 2015-12-18 08:05:06 -08:00
OWNERS add root files from chrome 2013-08-13 19:11:15 +00:00
PRESUBMIT.py 10.9 is no more 2016-02-25 06:52:18 -08:00
public.bzl Separate private headers for condition inclusion in BUILD file. 2016-04-11 13:45:51 -07:00
README Fix references to https://sites.google.com/site/skiadocs/. 2015-02-03 13:12:54 -02:00
README.chromium Update README.chromium. 2015-06-11 13:19:24 -07:00
SK_IMAGE_VERSION Update SK_IMAGE_VERSION to 3 2016-02-23 08:14:19 -08:00
skia.gyp Fix references to https://sites.google.com/site/skiadocs/. 2015-02-03 13:12:54 -02:00
SKP_VERSION Update SKP version 2016-04-10 00:30:13 -07:00
whitespace.txt Reland of Whitespace change to test Bugdroid+AutoRoll (patchset #1 id:1 of https://codereview.chromium.org/1861713002/ ) 2016-04-05 10:12:56 -07:00

Skia is a complete 2D graphic library for drawing Text, Geometries, and Images.

See full details, and build instructions, at https://skia.org.