s1ddok/alloy

Make usage of Metal API a pleasure

alloy's Issues

Support Swift Package Manager

Please consider implementing support for Swift PM, now that it is built right into Xcode 11. Thanks!

How to use MTLOffscreenRenderer?

I want to use MTLOffscreenRenderer to produce CVPixelBuffer
I've tried to copy bytes from it's texture using getBytes, but no luck
Also texture.bufferBytesPerRow returns zero
Could you add a little example?
Thanks in advance

Make MTLContext more extendable

I want to create a texture from a CGImage. Great, MTLContext has a method for that:

Alloy/Alloy/MTLContext.swift

Lines 75 to 78 in 56c46ca

	public func texture(from image: CGImage,
	srgb: Bool? = nil,
	usage: MTLTextureUsage = [.shaderRead],
	generateMipmaps: Bool = false) throws -> MTLTexture {

But I want to specify custom storageMode, which the current function doesn't support. Okay, so I'll make an extension on MTLContext to add this functionality. Unfortunately, that is not possible because MTKTextureLoader being private on MTLContext. Now I'm forced to create my own MTKTextureLoader alongside my already existing MTLContext and get less of the benefit of using MTLContext in the first place.

Maybe it's a small thing, but it would be nice if MTLContext could be optimized for extendability by making its MTKTextureLoader public. What do you think?

extension MTLRegion has wrong (+1) maxX maxY maxZ

if my texture has size of 5
then my minX is 0
and my maxX is 4
with current implementation it's 5

public extension MTLRegion {
    var maxX: Int {
        return self.origin.x + self.size.width
    }    
    var maxY: Int {
        return self.origin.y + self.size.height
    }    
    var maxZ: Int {
        return self.origin.z + self.size.depth
    }