ios/glview: fix crash when capture image from a zero bounds

matrixreload · xinzhengzhang · commit e188ecbde8f9 · 2017-01-09T17:58:51.000+08:00
Signed-off-by: Xinzheng Zhang &lt;zhangxzheng@gmail.com&gt;
diff --git a/ios/IJKMediaPlayer/IJKMediaPlayer/ijkmedia/ijksdl/ios/IJKSDLGLView.m b/ios/IJKMediaPlayer/IJKMediaPlayer/ijkmedia/ijksdl/ios/IJKSDLGLView.m
@@ -559,6 +559,9 @@ - (UIImage*)snapshotInternal
 
 - (UIImage*)snapshotInternalOnIOS7AndLater
 {
+    if (CGSizeEqualToSize(self.bounds.size, CGSizeZero)) {
+        return nil;
+    }
     UIGraphicsBeginImageContextWithOptions(self.bounds.size, NO, 0.0);
     // Render our snapshot into the image context
     [self drawViewHierarchyInRect:self.bounds afterScreenUpdates:NO];

Original file line number	Diff line number	Diff line change
`@@ -559,6 +559,9 @@ - (UIImage*)snapshotInternal`
`559`	`559`
`560`	`560`	`- (UIImage*)snapshotInternalOnIOS7AndLater`
`561`	`561`	`{`
	`562`	`+ if (CGSizeEqualToSize(self.bounds.size, CGSizeZero)) {`
	`563`	`+ return nil;`
	`564`	`+ }`
`562`	`565`	`UIGraphicsBeginImageContextWithOptions(self.bounds.size, NO, 0.0);`
`563`	`566`	`// Render our snapshot into the image context`
`564`	`567`	`[self drawViewHierarchyInRect:self.bounds afterScreenUpdates:NO];`