[BUG] There are some Memory Leaks in iOS Demo

[zjn-116373914]

Describe the bug There are some Memory Leaks in iOS Demo

How To Reproduce the bug

1. Import a larger resolution image(3024 * 4032)
2. Go into ImageFilterController page
3. Render with some filters
4. Back to Home page
5. Repeat steps 2, 3, and 4

Expected behavior There are some Memory Leaks

Screenshots

Running Information(please complete the following information):

• GPUPixel Version using : v1.3.0-beta.7
• Operating System: macOS 14.4.1
• Device Info: Mac mini(2023)

[jaaronkot]

Thank you. We will carry out unified memory-related fixes later.

[xiaohangfamily]

CADisplayLink has a strong reference to self, try this code on viewWillAppear/WillDisappear

• (void)startRender { self.displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(displayLinkDidFire:)]; self.displayLink.paused = YES; self.displayLink.preferredFramesPerSecond = 30; [self.displayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSRunLoopCommonModes]; self.displayLink.paused = NO; }

• (void)cancelRender { self.displayLink.paused = YES; [self.displayLink invalidate]; self.displayLink = nil; }