From 5389209a64debc4b9242232b2fa51403e33aea35 Mon Sep 17 00:00:00 2001
From: Mikael Sand <msand@abo.fi>
Date: Sun, 31 Mar 2019 18:48:57 +0300
Subject: [PATCH] [iOS] Fix clipRule="evenodd"

https://github.com/react-native-community/react-native-svg/issues/983
---
 ios/RNSVGNode.m | 38 ++++----------------------------------
 1 file changed, 4 insertions(+), 34 deletions(-)

diff --git a/ios/RNSVGNode.m b/ios/RNSVGNode.m
index 7d491e21..66d2507a 100644
--- a/ios/RNSVGNode.m
+++ b/ios/RNSVGNode.m
@@ -23,7 +23,6 @@
     BOOL _transparent;
     RNSVGClipPath *_clipNode;
     CGPathRef _cachedClipPath;
-    CGImageRef _clipMask;
     CGFloat canvasWidth;
     CGFloat canvasHeight;
     CGFloat canvasDiagonal;
@@ -225,10 +224,8 @@ CGFloat const RNSVG_DEFAULT_FONT_SIZE = 12;
         return;
     }
     CGPathRelease(_cachedClipPath);
-    CGImageRelease(_clipMask);
     _cachedClipPath = nil;
     _clipPath = clipPath;
-    _clipMask = nil;
     [self invalidate];
 }
 
@@ -238,10 +235,8 @@ CGFloat const RNSVG_DEFAULT_FONT_SIZE = 12;
         return;
     }
     CGPathRelease(_cachedClipPath);
-    CGImageRelease(_clipMask);
     _cachedClipPath = nil;
     _clipRule = clipRule;
-    _clipMask = nil;
     [self invalidate];
 }
 
@@ -287,24 +282,6 @@ CGFloat const RNSVG_DEFAULT_FONT_SIZE = 12;
             CGPathRelease(_cachedClipPath);
         }
         _cachedClipPath = CGPathRetain([_clipNode getPath:context]);
-        if (_clipMask) {
-            CGImageRelease(_clipMask);
-        }
-        if ([_clipNode isSimpleClipPath]) {
-            _clipMask = nil;
-        } else {
-            CGRect bounds = CGContextGetClipBoundingBox(context);
-            CGSize size = bounds.size;
-
-            UIGraphicsBeginImageContextWithOptions(size, NO, 0.0);
-            CGContextRef newContext = UIGraphicsGetCurrentContext();
-            CGContextTranslateCTM(newContext, 0.0, size.height);
-            CGContextScaleCTM(newContext, 1.0, -1.0);
-
-            [_clipNode renderLayerTo:newContext rect:bounds];
-            _clipMask = CGBitmapContextCreateImage(newContext);
-            UIGraphicsEndImageContext();
-        }
     }
 
     return _cachedClipPath;
@@ -315,16 +292,11 @@ CGFloat const RNSVG_DEFAULT_FONT_SIZE = 12;
     CGPathRef clipPath = [self getClipPath:context];
 
     if (clipPath) {
-        if (!_clipMask) {
-            CGContextAddPath(context, clipPath);
-            if (_clipNode.clipRule == kRNSVGCGFCRuleEvenodd) {
-                CGContextEOClip(context);
-            } else {
-                CGContextClip(context);
-            }
+        CGContextAddPath(context, clipPath);
+        if (_clipNode.clipRule == kRNSVGCGFCRuleEvenodd) {
+            CGContextEOClip(context);
         } else {
-            CGRect bounds = CGContextGetClipBoundingBox(context);
-            CGContextClipToMask(context, bounds, _clipMask);
+            CGContextClip(context);
         }
     }
 }
@@ -551,9 +523,7 @@ CGFloat const RNSVG_DEFAULT_FONT_SIZE = 12;
 {
     CGPathRelease(_cachedClipPath);
     CGPathRelease(_strokePath);
-    CGImageRelease(_clipMask);
     CGPathRelease(_path);
-    _clipMask = nil;
 }
 
 @end