58 lines
2.2 KiB
Swift
58 lines
2.2 KiB
Swift
//
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// TextMode.swift
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// FruitMachine
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//
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// Created by Christopher Rohl on 8/2/17.
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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 TextMode: NSObject {
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static func putGlyph(buffer: UnsafeMutablePointer<BitmapPixelsLE555.PixelData>?, glyph: Glyph, attributes: UInt8, pixelPosition: CGPoint) {
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//You better have locked the buffer before getting here...
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if(pixelPosition.x == -1 && pixelPosition.y == -1) { return }
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let ca: CharacterAttributes
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if(attributes == 0x00) {
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ca = .inverse
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} else if(attributes == 0x40) {
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ca = .flashing
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} else {
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ca = .normal
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}
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//Calculate the offset to reach the desired position.
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var baseOffset = EmulatedSystemInstance!.emulatorViewDelegate.scanlineOffsets[Int(pixelPosition.y) % 192] + Int(pixelPosition.x)
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if(EmulatedSystemInstance!.videoSoftswitches.PAGE_2) {
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baseOffset += 0x400
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}
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for charY in 0..<AppleII.A2CharacterGenerator.CHAR_HEIGHT {
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let offset = baseOffset + (AppleII.ScreenDelegate.PIXEL_WIDTH * charY)
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let glyphOffsetY = (charY * 8)
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for charX in 0..<7 {
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switch(ca) {
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case .normal:
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buffer![offset + 6 - charX] = glyph.pixels[glyphOffsetY + charX]
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case .inverse:
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buffer![offset + 6 - charX] = BitmapPixelsLE555.PixelData(data: ~glyph.pixels[glyphOffsetY + charX].data)
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case .flashing:
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if(!EmulatedSystemInstance!.emulatorViewDelegate.flashIsInverse) {
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buffer![offset + 6 - charX] = glyph.pixels[glyphOffsetY + charX]
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} else {
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buffer![offset + 6 - charX] = BitmapPixelsLE555.PixelData(data: ~glyph.pixels[glyphOffsetY + charX].data)
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}
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}
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}
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}
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}
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}
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}
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