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Mike Klein e8354b276a DeMorgan's blend-on-black logic
I kept reading and re-reading the existing logic and couldn't figure it
out until I looked at the AlphaOption enum.  I think this direction
reads a bit more clearly.

(This is why we have those ->premul methods.  Oddly, we fail for 4444.)

Change-Id: I74ea2e380d5ab9526ea1e6412929346ad9c0ead6
Reviewed-on: https://skia-review.googlesource.com/c/167921
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
2018-11-02 19:28:57 +00:00
animations first cut at a checkbox 2009-10-21 19:41:10 +00:00
bench Make nanobench --mpd flush between canvases. 2018-10-31 17:39:11 +00:00
bin Add script to pull svgs to svgs/ and add to .gitignore 2018-08-31 20:02:24 +00:00
dm remove src/jumper 2018-10-24 11:15:58 +00:00
docker Use new build targets in continuous build of skottie and debugger. 2018-09-20 15:26:18 +00:00
docs remove scale parameter from getFontMetrics 2018-11-02 02:50:13 +00:00
example Compile with GCC 7.2.0. 2018-03-13 22:18:18 +00:00
experimental add pvg experiment 2018-11-02 15:35:21 +00:00
fuzz Remove SrcRectConstraint from drawImageRect overloads with no src rect 2018-10-29 15:11:52 +00:00
gm Remove SkUnPreMultiply::UnPreMultiplyPreservingByteOrder 2018-11-02 17:46:26 +00:00
gn add unpremul gm 2018-10-31 15:41:30 +00:00
include Remove mutablePaint from glyphRuns 2018-11-02 19:03:25 +00:00
infra Update go_deps asset 2018-11-02 05:59:48 +00:00
modules SkShaper: Fix a couple of crashes when fonts aren't found 2018-10-31 17:46:54 +00:00
platform_tools SkQP/Java: remove unneeded stack trace, count tests correcctly 2018-10-26 18:07:33 +00:00
resources Test a GIF with an out of range transparent index 2018-10-12 14:20:02 +00:00
samplecode Refactor Nima code 2018-10-30 19:32:52 +00:00
site Update markdown files 2018-11-02 06:07:39 +00:00
src DeMorgan's blend-on-black logic 2018-11-02 19:28:57 +00:00
tests Observe SkFont::textToGlyphs() maxGlyphCount 2018-11-02 17:22:17 +00:00
third_party Roll skia/third_party/skcms 1ce6da5c8d99..26679709b32f (1 commits) 2018-11-01 15:37:24 +00:00
tools Call GrContext::performDeferredCleanup from viewer 2018-11-01 17:30:25 +00:00
.clang-format clean up flattenable macro cruft 2018-10-19 16:18:32 +00:00
.gitignore Add script to pull svgs to svgs/ and add to .gitignore 2018-08-31 20:02:24 +00:00
.gn Basic standalone GN configs. 2016-07-21 12:25:45 -07:00
AUTHORS Fixed SkVertices crashing on Windows DLL builds 2018-04-22 14:42:01 +00:00
BUILD.gn refactor bookmaker 2018-11-01 13:58:32 +00:00
codereview.settings Make uploading to Gerrit the default for Skia 2016-11-09 19:07:56 +00:00
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 Roll third_party/externals/angle2 caeb1e895d7b..6ba22ee13768 (3 commits) 2018-11-02 18:47:05 +00:00
Doxyfile Make the housekeeper upload doxygen to a newer bucket 2016-10-04 13:23:57 -07:00
LICENSE BUG=skia:5602 2016-09-02 11:19:34 -07:00
OWNERS add OWNERS file 2017-12-01 19:50:19 +00:00
PRESUBMIT.py Add new autoroll service accounts to AUTHORS check bypass 2018-09-07 18:49:23 +00:00
public.bzl Revert "add flag for google3 build" 2018-10-27 15:38:16 +00:00
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
whitespace.txt [infra] Marker for IntelBayTrail BIOS update. 2018-09-17 16:47:35 +00:00

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

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