commit 88f517ca87a0a5e93447ac0a89b08a4b8dee8151
author Leon Scroggins III <scroggo@google.com> Thu Jul 14 13:08:37 2022 -0400
committer Android Build Coastguard Worker <android-build-coastguard-worker@google.com> Fri Jul 29 22:35:02 2022 +0000
tree 84700a7325da0a26265fa307ee865e8071b871ac
parent 8b4ab703efb1097702eef9f6a73814221cf08200

Define SK_SUPPORT_LEGACY_ALPHA_BITMAP_AS_COVERAGE

This flag, along with I01fadaed52eecc42416deb2307d03499bca85a4c (in
upstream Skia), restores the old behavior of treating alpha images as
coverage in the CPU backend. This fixes a regression in a technique apps
use to apply rounded corners to images.

Bug: 231400686
Test: GM in Skia
Change-Id: I4857da2c3dd54e64ca86eb1ea2122096625f8662
(cherry picked from commit 66e866e7f699d0bf3f7c0adde896fdbab7ecab67)
Merged-In: I4857da2c3dd54e64ca86eb1ea2122096625f8662

include/config/SkUserConfigManual.h

diff --git a/include/config/SkUserConfigManual.h b/include/config/SkUserConfigManual.h
index 5f11d96..528e406 100644
--- a/include/config/SkUserConfigManual.h
+++ b/include/config/SkUserConfigManual.h
@@ -32,4 +32,8 @@
   #define SK_DISABLE_DAA  // skbug.com/6886
 
   #define SK_ABORT(...) __android_log_assert(nullptr, "skia", ##__VA_ARGS__)
+
+  // TODO (b/239048372): Remove this flag when we can safely migrate apps to the
+  // new behavior.
+  #define SK_SUPPORT_LEGACY_ALPHA_BITMAP_AS_COVERAGE
 #endif // SkUserConfigManual_DEFINED