146 lines
5.4 KiB
Swift
146 lines
5.4 KiB
Swift
//
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// HiresMode.swift
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// FruitMachine
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//
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// Created by Christopher Rohl on 8/10/17.
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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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extension AppleIIBase {
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class HiresMode: NSObject {
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static func putHiresByte(buffer: UnsafeMutablePointer<BitmapPixelsLE555.PixelData>?, pixel: UInt8, address: UInt16) {
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let pageBase: Address
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if(EmulatedSystemInstance!.videoSoftswitches.PAGE_2) {
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pageBase = 0x4000
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} else {
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pageBase = 0x2000
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}
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//Convert the address into an (X,Y) pixel coordinate.
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var offset = address - pageBase
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/*
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if(offset >= 0x2000) { //Page 2 address
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offset -= 0x2000
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}
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*/
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//Find the row number.
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var rowNumber = 0
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let lowByte = UInt8(offset & 0xFF)
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var columnByte: UInt8 = 0x00
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if(0x28 ... 0x4F ~= lowByte || 0xA8 ... 0xCF ~= lowByte) {
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//Middle third.
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rowNumber += 64
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columnByte = (lowByte & 0x7F) - 0x28
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}
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else if(0x50 ... 0x77 ~= lowByte || 0xD0 ... 0xF7 ~= lowByte) {
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//Bottom third.
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rowNumber += 128
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columnByte = (lowByte & 0x7F) - 0x50
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}
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else if(0x78 ... 0x7F ~= lowByte || 0xF8 ... 0xFF ~= lowByte) {
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//Discard.
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return
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}
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else {
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//Top third.
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rowNumber += 0
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columnByte = lowByte & 0x7F
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}
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rowNumber += Int(offset / 0x400) /* One line per 0x400 */
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while offset > 0x400 {
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offset -= 0x400
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}
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rowNumber += Int((offset / 0x80) * 8)
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let dot0 = (pixel & 0x01) == 0x01
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let dot1 = (pixel & 0x02) == 0x02
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let dot2 = (pixel & 0x04) == 0x04
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let dot3 = (pixel & 0x08) == 0x08
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let dot4 = (pixel & 0x10) == 0x10
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let dot5 = (pixel & 0x20) == 0x20
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let dot6 = (pixel & 0x40) == 0x40
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let pixelRowOffset = Int(rowNumber * AppleII.ScreenDelegate.PIXEL_WIDTH)
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let pixelColumnOffset = Int(UInt16(columnByte) * 7)
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if(pixelRowOffset + pixelColumnOffset == (5 * AppleII.ScreenDelegate.PIXEL_WIDTH)) {
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let x = 0
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}
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if(dot0) {
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buffer![pixelRowOffset + 0 + pixelColumnOffset] = AppleIIBase.HiresMode.Colors.White
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} else {
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buffer![pixelRowOffset + 0 + pixelColumnOffset] = AppleIIBase.HiresMode.Colors.Black
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}
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if(dot1) {
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buffer![pixelRowOffset + 1 + pixelColumnOffset] = AppleIIBase.HiresMode.Colors.White
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} else {
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buffer![pixelRowOffset + 1 + pixelColumnOffset] = AppleIIBase.HiresMode.Colors.Black
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}
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if(dot2) {
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buffer![pixelRowOffset + 2 + pixelColumnOffset] = AppleIIBase.HiresMode.Colors.White
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} else {
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buffer![pixelRowOffset + 2 + pixelColumnOffset] = AppleIIBase.HiresMode.Colors.Black
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}
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if(dot3) {
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buffer![pixelRowOffset + 3 + pixelColumnOffset] = AppleIIBase.HiresMode.Colors.White
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} else {
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buffer![pixelRowOffset + 3 + pixelColumnOffset] = AppleIIBase.HiresMode.Colors.Black
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}
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if(dot4) {
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buffer![pixelRowOffset + 4 + pixelColumnOffset] = AppleIIBase.HiresMode.Colors.White
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} else {
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buffer![pixelRowOffset + 4 + pixelColumnOffset] = AppleIIBase.HiresMode.Colors.Black
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}
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if(dot5) {
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buffer![pixelRowOffset + 5 + pixelColumnOffset] = AppleIIBase.HiresMode.Colors.White
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} else {
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buffer![pixelRowOffset + 5 + pixelColumnOffset] = AppleIIBase.HiresMode.Colors.Black
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}
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if(dot6) {
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buffer![pixelRowOffset + 6 + pixelColumnOffset] = AppleIIBase.HiresMode.Colors.White
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} else {
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buffer![pixelRowOffset + 6 + pixelColumnOffset] = AppleIIBase.HiresMode.Colors.Black
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}
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}
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struct Colors {
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static let Black = BitmapPixelsLE555.RGB32toLE555(r: 0, g: 0, b: 0)
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static let White = BitmapPixelsLE555.RGB32toLE555(r: 255, g: 255, b: 255)
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static func getColor(index: UInt8) -> BitmapPixelsLE555.PixelData {
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switch index {
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case 0: return AppleIIBase.HiresMode.Colors.Black
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case 1: return AppleIIBase.HiresMode.Colors.White
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case 2: return AppleIIBase.HiresMode.Colors.White
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case 3: return AppleIIBase.HiresMode.Colors.White
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case 4: return AppleIIBase.HiresMode.Colors.White
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case 5: return AppleIIBase.HiresMode.Colors.White
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case 6: return AppleIIBase.HiresMode.Colors.White
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case 7: return AppleIIBase.HiresMode.Colors.White
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default:
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print("tried to get color > 15")
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return AppleIIBase.HiresMode.Colors.Black
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}
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}
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}
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}
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}
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