66 lines
1.7 KiB
Swift
66 lines
1.7 KiB
Swift
//
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// BitmapPixels.swift
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// FruitMachine
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//
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// Created by Christopher Rohl on 7/30/17.
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// Copyright © 2017 Christopher Rohl. All rights reserved.
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//
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import Cocoa
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class BitmapPixels: NSObject {
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//2bpp bitmap data so that we're byte-aligned for ease of use.
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struct PixelData {
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var data: UInt8 = 0
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}
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static let bitsPerComponent: UInt8 = 2
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static let bitsPerPixel: UInt = 8
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static let colorSpace = CGColorSpaceCreateDeviceRGB()
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static let Black = PixelData(data: 0b11000000)
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static let White = PixelData(data: 0b11111111)
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}
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class BitmapPixelsARGB32 : NSObject {
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struct PixelData {
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var a: UInt8 = 255
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var r: UInt8 = 0
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var g: UInt8 = 0
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var b: UInt8 = 0
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}
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static let bitsPerComponent: UInt8 = 8
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static let bitsPerPixel: UInt = 32
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static let colorSpace = CGColorSpaceCreateDeviceRGB()
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static let White = PixelData(a: 255, r: 200, g: 200, b: 200)
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static let Black = PixelData(a: 255, r: 0, g: 0, b: 0)
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}
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class BitmapPixelsLE555 : NSObject {
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struct PixelData {
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var data: UInt16 = 0
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}
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static let bitsPerComponent: UInt8 = 5
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static let bitsPerPixel: UInt = 16
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static let colorSpace = CGColorSpaceCreateDeviceRGB()
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static let White = PixelData(data: 0b0111111111111111)
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static let Black = PixelData(data: 0b0000000000000000)
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static func RGB32toLE555(r: UInt8, g: UInt8, b: UInt8) -> PixelData {
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let r5: UInt16 = UInt16(r >> 3)
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let g5: UInt16 = UInt16(g >> 3)
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let b5: UInt16 = UInt16(b >> 3)
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var pixel = PixelData()
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pixel.data |= b5
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pixel.data |= g5 << 5
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pixel.data |= r5 << 10
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return pixel
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}
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}
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