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Switch to instance methods of draw and display

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This patch switches to instance methods of draw and display for
ASTextNode and ASImageNode to attempt to increase their performance.

It also fixes some thread safety issues in ASImageNode which appear
to have been regressions (though probably not hit very often).

And it sets up work for allowing modification of CGContexts before
and after a node's contents are drawn.
This commit is contained in:
Garrett Moon
2016-01-27 20:05:03 -08:00
parent 5004935d82
commit 01c1680904
7 changed files with 207 additions and 107 deletions
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5
AsyncDisplayKit/Private/ASDisplayNodeInternal.h
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@@ -87,7 +87,9 @@ typedef NS_OPTIONS(NSUInteger, ASDisplayNodeMethodOverrides)
unsigned hasCustomDrawingPriority:1;
// whether custom drawing is enabled
unsigned implementsInstanceDrawRect:1;
unsigned implementsDrawRect:1;
unsigned implementsInstanceImageDisplay:1;
unsigned implementsImageDisplay:1;
unsigned implementsDrawParameters:1;
@@ -101,6 +103,9 @@ typedef NS_OPTIONS(NSUInteger, ASDisplayNodeMethodOverrides)
ASDisplayNodeExtraIvars _extra;
ASDisplayNodeContextModifier _preContextModifier;
ASDisplayNodeContextModifier _postContextModifier;
#if TIME_DISPLAYNODE_OPS
@public
NSTimeInterval _debugTimeToCreateView;