warrenm / CreateBiplanarIOSurface.m

Last active April 26, 2022 23:05

Example of creating a biplanar (YUV422) IOSurface

	NSUInteger width = 1024;
	NSUInteger height = 768;
	OSType pixelFormat = kCVPixelFormatType_422YpCbCr8BiPlanarFullRange;
	NSUInteger plane0BytesPerPixel = 1;
	NSUInteger plane1BytesPerPixel = 1;

	NSUInteger plane0BytesPerRow = IOSurfaceAlignProperty(kIOSurfaceBytesPerRow, plane0BytesPerPixel * width);
	NSUInteger plane0AllocSize = IOSurfaceAlignProperty(kIOSurfaceAllocSize, plane0BytesPerRow * height);
	NSUInteger plane1BytesPerRow = IOSurfaceAlignProperty(kIOSurfaceBytesPerRow, plane1BytesPerPixel * width);
	NSUInteger plane1AllocSize = IOSurfaceAlignProperty(kIOSurfaceAllocSize, plane1BytesPerRow * height);

snowzurfer / 3DPointsFromDepth.swift

Last active July 12, 2024 07:39

3D world points from ARKit depth

	import ARKit
	import SceneKit

	let horizontalPoints = 256 / 2
	let verticalPoints = 192 / 2
	var depthNodes = [SCNNode]()
	var parentDebugNodes = SCNNode()
	var sceneView: ARSCNView!

	// Somewhere during setup

munrocket / wgsl_2d_sdf.md

Last active September 13, 2024 06:29

WGSL 2D SDF Primitives

fn sdCircle(p: vec2f, r: f32) -> f32 {
  return length(p) - r;
}

messeb / URLResponse+HTTP.swift

Created December 5, 2017 21:00

URLResponse as HTTPURLResponse and check if call has status code 2xx

	extension URLResponse {
	/// Returns casted `HTTPURLResponse`
	var http: HTTPURLResponse? {
	return self as? HTTPURLResponse
	}
	}

	extension HTTPURLResponse {
	/// Returns `true` if `statusCode` is in range 200...299.
	/// Otherwise `false`.

jhaberstro / gpu_arch_resources

Last active October 26, 2023 00:14

GPU Architecture Learning Resources

	http://courses.cms.caltech.edu/cs179/
	http://www.amd.com/Documents/GCN_Architecture_whitepaper.pdf
	https://community.arm.com/graphics/b/blog
	http://cdn.imgtec.com/sdk-documentation/PowerVR+Hardware.Architecture+Overview+for+Developers.pdf
	http://cdn.imgtec.com/sdk-documentation/PowerVR+Series5.Architecture+Guide+for+Developers.pdf
	https://www.imgtec.com/blog/a-look-at-the-powervr-graphics-architecture-tile-based-rendering/
	https://www.imgtec.com/blog/the-dr-in-tbdr-deferred-rendering-in-rogue/
	http://developer.amd.com/tools-and-sdks/opencl-zone/amd-accelerated-parallel-processing-app-sdk/opencl-optimization-guide/#50401334_pgfId-412605
	https://fgiesen.wordpress.com/2011/07/09/a-trip-through-the-graphics-pipeline-2011-index/
	https://community.arm.com/graphics/b/documents/posts/moving-mobile-graphics#siggraph2015

kbenzie / .ycm_extra_conf.py

Last active July 26, 2017 09:55

YouCompleteMe extra configuration file

	# This file is NOT licensed under the GPLv3, which is the license for the rest
	# of YouCompleteMe.
	#
	# Here's the license text for this file:
	#
	# This is free and unencumbered software released into the public domain.
	#
	# Anyone is free to copy, modify, publish, use, compile, sell, or
	# distribute this software, either in source code form or as a compiled
	# binary, for any purpose, commercial or non-commercial, and by any

zenorocha / README.md

Last active August 22, 2024 14:20

A template for Github READMEs (Markdown) + Sublime Snippet

Project Name

TODO: Write a project description

Installation

TODO: Describe the installation process