juliensagot

import Foundation
import SwiftUI
import UIKit

extension UIBlurEffect {
  public static func variableBlurEffect(radius: Double, imageMask: UIImage) -> UIBlurEffect? {
    let methodType = (@convention(c) (AnyClass, Selector, Double, UIImage) -> UIBlurEffect).self
    let selectorName = ["imageMask:", "effectWithVariableBlurRadius:"].reversed().joined()
    let selector = NSSelectorFromString(selectorName)

fermoya

###### CONSISTENCY BETWEEN MACOS AND IOS #####
#
# In order to use the same PodFile with MacOS, we need to unlink the libraries that do not support Catalyst, filter
# files in native targets build phases, filter dependencies and make sure the unsupported frameworks along with their
# their bundle resources are not included in the final archive. For that, we use `platform_filter` to specify 'ios' and
# 'OTHER_LDFLAGS[sdk=iphone*]' to link those libraries for iPhone and iPad. Besides, we modify "*frameworks.sh" and 
# "*resrouces.sh" to skip installation for architecture x86_64.
#
# *Notice*: 'sdk=iphone*' excludes macOS, even though Catalyst is compiled with iOS SDK.
#

gilbertfrancois

#!/usr/bin/env bash
# Author:   Gilbert Francois Duivesteijn
# Date:     Febr 2023
# Platform: macOS
# License:  Apache

# Discard receipt data for the installed GStreamer packages.
pkgutil --pkgs | grep gstreamer | xargs -I % sudo pkgutil --forget %

# Remove the GStreamer Framework from disk

quantcon

//
//  ViewController.swift
//  Interactive Animated Presentation
//  "Visor" Effect
//

import UIKit

class ViewController: UIViewController {

danielgalasko

/// RepeatingTimer mimics the API of DispatchSourceTimer but in a way that prevents
/// crashes that occur from calling resume multiple times on a timer that is
/// already resumed (noted by https://github.com/SiftScience/sift-ios/issues/52
class RepeatingTimer {

    let timeInterval: TimeInterval
    
    init(timeInterval: TimeInterval) {
        self.timeInterval = timeInterval
    }

sortofsleepy

fragment float4 capturedImageFragmentShader(ImageColorInOut in [[stage_in]],
                                            texture2d<float, access::sample> capturedImageTextureY [[ texture(kTextureIndexY) ]],
                                            texture2d<float, access::sample> capturedImageTextureCbCr [[ texture(kTextureIndexCbCr) ]]) {
    
    constexpr sampler colorSampler(mip_filter::linear,
                                   mag_filter::linear,
                                   min_filter::linear);
    
    const float4x4 ycbcrToRGBTransform = float4x4(
        float4(+1.0000f, +1.0000f, +1.0000f, +0.0000f),

zadr

#import <CoreMedia/CoreMedia.h>
#import <CoreVideo/CoreVideo.h>
#import <UIKit/UIKit.h>

// https://developer.apple.com/library/content/qa/qa1702/_index.html
+ (UIImage * _Nullable)imageWithSampleBuffer:(CMSampleBufferRef _Nonnull)sampleBuffer {
    UIImage *returnValue = nil;

    CVImageBufferRef imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer);
    CVPixelBufferLockBaseAddress(imageBuffer, 0); {

humblehacker

extension CVPixelBuffer
{
    /// Deep copy a CVPixelBuffer:
    ///   http://stackoverflow.com/questions/38335365/pulling-data-from-a-cmsamplebuffer-in-order-to-create-a-deep-copy
    func copy() -> CVPixelBuffer
    {
        precondition(CFGetTypeID(self) == CVPixelBufferGetTypeID(), "copy() cannot be called on a non-CVPixelBuffer")

        var _copy: CVPixelBuffer?

valkjsaaa

extension CVPixelBuffer {
    func deepcopy() -> CVPixelBuffer? {
        let width = CVPixelBufferGetWidth(self)
        let height = CVPixelBufferGetHeight(self)
        let format = CVPixelBufferGetPixelFormatType(self)
        var pixelBufferCopyOptional:CVPixelBuffer?
        CVPixelBufferCreate(nil, width, height, format, nil, &pixelBufferCopyOptional)
        if let pixelBufferCopy = pixelBufferCopyOptional {
            CVPixelBufferLockBaseAddress(self, kCVPixelBufferLock_ReadOnly)
            CVPixelBufferLockBaseAddress(pixelBufferCopy, 0)

podkovyrin

CVImageBufferRef imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer);
CVPixelBufferLockBaseAddress(imageBuffer,0);

size_t height = CVPixelBufferGetHeight(imageBuffer);
size_t width = CVPixelBufferGetWidth(imageBuffer);
size_t bytesPerRow = CVPixelBufferGetBytesPerRow(imageBuffer);

void *sourceData = CVPixelBufferGetBaseAddress(imageBuffer);

// Set a bunch of variables we need. The "radius" for the blur kernel needs to be positive and odd. The permute map maps the BGRA channels of the buffer to the ARGB that vImage needs.