> This PR fixes an issue exclusively seen on Apple M1 systems when SwingSet2 > demo is run with uiScale=1.0. > > **Issue :** > SwingSet2 Demo - As reported in JBS description > J2DDemo - As reported in a comment on JBS > > **Root Cause :** > DrawPixel path is used only with uiScale=1.0. > MTLPrimitiveTypePoint is used to draw a pixel while encoding a render command. > As mentioned in the documentation - > https://developer.apple.com/documentation/metal/mtlprimitivetype/mtlprimitivetypepoint?language=objc > > "The vertex shader must provide [[point_size]], or the point size is > undefined." > > In our shader functions, we do not define this point size. It is harmless on > x86_64 based mac systems, but causes visual artifacts on M1 mac systems. > > **Solution :** > Explicitly define point size in shader functions that draw > MTLPrimitiveTypePoint.
Ajit Ghaisas has updated the pull request incrementally with one additional commit since the last revision: add automated test ------------- Changes: - all: https://git.openjdk.java.net/jdk/pull/4356/files - new: https://git.openjdk.java.net/jdk/pull/4356/files/b61e512e..751c85cf Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=4356&range=01 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=4356&range=00-01 Stats: 92 lines in 1 file changed: 92 ins; 0 del; 0 mod Patch: https://git.openjdk.java.net/jdk/pull/4356.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/4356/head:pull/4356 PR: https://git.openjdk.java.net/jdk/pull/4356
