Apple-1-Tools/FruitMachine-Swift
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optimizing

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This commit is contained in:
Luigi Thirty 2017-07-31 16:52:51 -04:00
parent acdefbb4fb
commit b6a65d1eb7
2 changed files with 25 additions and 17 deletions
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23
FruitMachine/AppleI/AppleI.swift
View File

@ -41,10 +41,6 @@ class AppleI: NSObject {
installOverrides()
for (cellNum, character) in terminal.characters.enumerated() {
emulatorViewDelegate.putCharacterPixels(charPixels: cg.getCharacterPixels(charIndex: character), pixelPosition: emulatorViewDelegate.getPixelOffset(charCellIndex: cellNum))
}
CPU.sharedInstance.memoryInterface.loadBinary(path: "/Users/luigi/apple1/apple1.rom", offset: 0xFF00, length: 0x100)
CPU.sharedInstance.memoryInterface.loadBinary(path: "/Users/luigi/apple1/basic.bin", offset: 0xE000, length: 0x1000)
CPU.sharedInstance.performReset()
@ -59,26 +55,35 @@ class AppleI: NSObject {
CPU.sharedInstance.memoryInterface.read_overrides.append(PIAOverrides.readKBD)
CPU.sharedInstance.memoryInterface.read_overrides.append(PIAOverrides.readKBDCR)
}
func runFrame() {
let startTime = CFAbsoluteTimeGetCurrent()
CPU.sharedInstance.cycles = 0
CPU.sharedInstance.cyclesInBatch = AppleI.CYCLES_PER_BATCH
CPU.sharedInstance.runCyclesBatch()
//update the video display
CVPixelBufferLockBaseAddress(emulatorViewDelegate.pixels!, CVPixelBufferLockFlags(rawValue: 0))
let pixelBase = CVPixelBufferGetBaseAddress(emulatorViewDelegate.pixels!)
let buf = pixelBase?.assumingMemoryBound(to: BitmapPixelsBE555.PixelData.self)
let startTime = CFAbsoluteTimeGetCurrent()
for (cellNum, character) in terminal.characters.enumerated() {
emulatorViewDelegate.putCharacterPixels(charPixels: cg.getCharacterPixels(charIndex: character),
emulatorViewDelegate.putCharacterPixels(buffer: buf,
charPixels: cg.getCharacterPixels(charIndex: character),
pixelPosition: emulatorViewDelegate.getPixelOffset(charCellIndex: cellNum))
}
let timeElapsed = CFAbsoluteTimeGetCurrent() - startTime
print("Time elapsed for runFrame: \(timeElapsed) s.")
CVPixelBufferUnlockBaseAddress(emulatorViewDelegate.pixels!, CVPixelBufferLockFlags(rawValue: 0))
emulatorView.setNeedsDisplay(emulatorView.frame)
emulatorView.display()
let timeElapsed = CFAbsoluteTimeGetCurrent() - startTime
print("Time elapsed for runFrame: \(timeElapsed) s.")
}
}

19
FruitMachine/AppleI/AppleIBitmapDisplay.swift
View File

@ -23,6 +23,8 @@ class AppleIBitmapDisplay: NSObject, CALayerDelegate {
var renderedImage: CGImage?
var scanlineOffsets: [Int]
override init() {
_ = CVPixelBufferCreate(kCFAllocatorDefault, AppleIBitmapDisplay.PIXEL_WIDTH, AppleIBitmapDisplay.PIXEL_HEIGHT, OSType(k16BE555PixelFormat), nil, &pixels)
@ -31,25 +33,26 @@ class AppleIBitmapDisplay: NSObject, CALayerDelegate {
bufferHeight = CVPixelBufferGetHeight(pixels!)
renderedImage = nil
scanlineOffsets = [Int]()
for i in 0..<AppleIBitmapDisplay.PIXEL_HEIGHT {
scanlineOffsets.append(i * AppleIBitmapDisplay.PIXEL_WIDTH)
}
}
func putCharacterPixels(charPixels: [UInt8], pixelPosition: CGPoint) {
CVPixelBufferLockBaseAddress(pixels!, CVPixelBufferLockFlags(rawValue: 0))
let pixelBase = CVPixelBufferGetBaseAddress(pixels!)
let buf = pixelBase?.assumingMemoryBound(to: BitmapPixelsBE555.PixelData.self)
func putCharacterPixels(buffer: UnsafeMutablePointer<BitmapPixelsBE555.PixelData>?, charPixels: [UInt8], pixelPosition: CGPoint) {
//You better have locked the buffer before getting here...
//Calculate the offset to reach the desired position.
let baseOffset = (Int(pixelPosition.y) * AppleIBitmapDisplay.PIXEL_WIDTH) + Int(pixelPosition.x)
let baseOffset = scanlineOffsets[Int(pixelPosition.y)] + Int(pixelPosition.x)
for charY in 0..<CharacterGenerator.CHAR_HEIGHT {
let offsetY = AppleIBitmapDisplay.PIXEL_WIDTH * charY
for charX in 0..<8 {
buf![baseOffset + offsetY + 7 - charX] = (charPixels[charY] & UInt8(1 << charX)) > 0 ? BitmapPixelsBE555.ARGBWhite : BitmapPixelsBE555.ARGBBlack
buffer![baseOffset + offsetY + 7 - charX] = (charPixels[charY] & UInt8(1 << charX)) > 0 ? BitmapPixelsBE555.ARGBWhite : BitmapPixelsBE555.ARGBBlack
}
}
CVPixelBufferUnlockBaseAddress(pixels!, CVPixelBufferLockFlags(rawValue: 0))
}
func getPixelOffset(charCellX: Int, charCellY: Int) -> CGPoint {