GPUImage2 | GPUImage 2 is a BSD-licensed Swift framework for GPU-accelerated video and image processing | iOS library

This may be a more complicated issue than I am portraying, but after building an iOS app and occasionally using GIT, I am not in a challenging position; I have additional developers I am working with, and there is a need to properly use a repository (BitBucket) for further work.

My project is "complicated" for two reasons;

• I am using CocoaPods for third-party dependencies.
• I use using GPUImage2, which is a separate .xcproject embedded in my project.

Somehow, everything was working fine (I had a master branch and several branches that various developers have been working on). Things have been complicated whenever I find the need to switch branches or merge branches. Issues related to CocoaPods constantly come up, though endless efforts at the command line typically get us through our challenges.

At this point, we are now trying to merge master into a new feature branch, and have hit the end of the line.

My question: Only one actual project file has a merge conflict. Every other file is related to the .xcworkspace or something with CocoaPods. I would think it would be ideal to remove CocoaPods from GIT control altogether, leaving just the Podfile, which developers can install locally.

Does anyone have suggestions on dealing with CocoaPods and GIT with Xcode projects?

I have these errors:

1. Cocoa.h File Not Found (in GPUImageView.h)

2. Unknown Type Name: **NSOpenGLContext, CVOpenGLESTextureCacheRef (GPUImageContext)

Now, I tried to fix all these errors, but ended up making things worse.

I know OpenGL ES is deprecated in iOS 12, but as I understand deprecation, it should still be working for the moment, right?

For error #1, I don't understand what's a MAC OS framework (cocoa.h) doing in here (some of the references are not surrounded with #IFDEF MAC_OS statements).

As for error #2, these types are defined within the AppKit framework (also a MAC_OS framework, not an iOS framework).

I have considered switching to GPUImage2, but it's a ton of work as it's not as easy as swapping the frameworks, I'll have a lot of code to rewrite. I also see Brad Larson (the semi-God behind this framework) has already started working on GPUImage3 which will use Metal instead of OpenGL ES but it's still work-in-progress but it won't be a simple swap from GPUImage v1 to GPUImage v3.

How to rotate or switch between front and back camera in GPUImage2(Switch version) using swift (toggle with a button). Any help would be highly appreciated.Thank you in advance.

In cocos2d-x I need to implement fast gaussian blur and here is how it should looks like( I just found some game on the App Store with already done such blur, in unity):

So, it's nice fadeIn-fadeOut blur when user pauses the game.

GPUImage already has a fast blur I need, but I can't find solution for cocos2d-x.

• v1 code when it was (GPUImage v1) Objective C

• v2 code when is now Swift(GPUImage v2) Swift

• GPUImage-x C++ version

Here is result of live camera view using GPUImage2 - tested on iPod Touch 5G, and it works fast on this slow and old device.

Blur in GPUImage works very fast even on very slow devices like iPod Touch 5G.
Looking for solution with super fast Gaussian blur for cocos2d-x.

I look at the source code of GPUImage2

I wrote a code using GPUImage2(https://github.com/BradLarson/GPUImage2).

I confirmed that my code successfully save an image before touching a set button (Rendering a filtered image).

However, my code save a red image (same size, only red filled) after touching a set button.

My App. includes a RenderView IBOutlet and two IBActions (Set Button & Save Button).

Here is my full source code.

How can I successfully save an image after touching a set button?

UPDATE: i update my code last.

Seems like I have same issue with this site but in different case. So I tried to use shiTomasiFeatureDetector filter from GPUImage2 framework in viewController.swift and i got EXC_BAD_ACCESS with code=1/code=2 in line camera --> blendFilter --> renderView. Here's my code:

I want to use only a few filters within GPUImage2 in my swift project, how can I tailor GPUImage2 to only a few filters that I need?

I am not familiar with the code base, and I don't see any documentation on this.

P.S. My concern is mostly about app size, if including everything doesn't bloat the app size, I am OK with importing GPUImage as a whole.

This probably is a dumb question, but I am stuck with this for a while so going to ask it anyway.

I'm trying to implement a Hudson/Nashville filter on a pet project. I googled a little and checkout out a few open-source projects and found some Objective-C (which I don't understand) based projects. They do have the filters implemented using GPUImage2, but I wasn't sure about their approach.

I have the overlay and other images that they have used and the GLSL files.

So my question is how do I go about using this images and shader files to implement a custom filter?

Note: I tried using the LookupFilter approach as suggested, but the result wasn't so good. It would be super helpful if you can show me some code. Thanks

Update:

What I am trying to understand this. Given a custom shader like the one below, how am I supposed to pass the input images for uniform inputImageTexture2, inputImageTexture3 & inputImageTexture4. Do I pass it as a PictureInput to BasicOperation by subclassing it? If so, how? What am I missing? I haven't been able to walk through the code much because of the lack of a proper documentation. I have read up on shaders and its different components now, but still not able to figure out a way to work with custom filters on GPUImage2. Please help.