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Parameterizable pixelTrail

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This commit is contained in:
tudnai 2021-06-06 18:53:39 -07:00
parent 5d82b7569e
commit c4ba161ffc
1 changed files with 18 additions and 7 deletions
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25
A2Mac/HiRes.swift
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@ -213,6 +213,12 @@ class HiRes: NSView {
}
// let pixelTrail = 2 // maybe too fast?
let pixelTrail = 1.5
// let pixelTrail = 1.4 // maybe a bit slow?
// let pixelTrail = 1.35 // maybe too slow?
func RenderMono() {
var height = HiRes.PixelHeight
@ -259,12 +265,12 @@ class HiRes: NSView {
// get all changed blocks
if shadowScreen[ screenIdx ] != block {
blockChanged[ blockVertIdx + blockHorIdx ] = 8
blockChanged[ blockVertIdx + blockHorIdx ] = 0xFF
}
else if ( ViewController.current?.CRTMonitor ?? false ) {
// slow CRT fade out effect
if (y % HiRes.blockHeight == 0) && (blockChanged[ blockVertIdx + blockHorIdx ] > 0) {
blockChanged[ blockVertIdx + blockHorIdx ] -= 1
blockChanged[ blockVertIdx + blockHorIdx ] = UInt8( Double(blockChanged[ blockVertIdx + blockHorIdx ]) / pixelTrail )
}
}
@ -277,11 +283,16 @@ class HiRes: NSView {
}
else if ( ViewController.current?.CRTMonitor ?? false ) {
var srgb = pixelsSRGB[pixelAddr]
let s = srgb >> 24 & 0xFF / 2
let r = srgb >> 16 & 0xFF / 2
let g = srgb >> 8 & 0xFF / 2
let b = srgb >> 0 & 0xFF / 2
srgb = s << 24 | r << 16 | g << 8 | b
let s = srgb >> 24 & 0xFF
let r = srgb >> 16 & 0xFF
let g = srgb >> 8 & 0xFF
let b = srgb >> 0 & 0xFF
srgb = UInt32(Double(s) / pixelTrail) << 24
| UInt32(Double(r) / pixelTrail) << 16
| UInt32(Double(g) / pixelTrail) << 8
| UInt32(Double(b) / pixelTrail)
pixelsSRGB[pixelAddr] = srgb;
}