389 lines
15 KiB
C#
389 lines
15 KiB
C#
using Core; // <-- This gives us access to SpectrumMachine
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using Core.Io;
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using System.Diagnostics;
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using System.Drawing.Imaging;
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using System.Reflection;
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using System.Runtime.InteropServices;
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namespace Desktop
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{
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public partial class Form1 : Form
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{
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// 1. Our new, clean Engine instance
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private SpectrumMachine _machine = null!;
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private BeeperDevice _beeper = null!;
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private DebuggerForm? _debugger = null;
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private Bitmap _screenBitmap = null!;
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private string _baseTitle = "";
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// ====================================================================
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// DEBUGGER PASS-THROUGHS
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// ====================================================================
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// The DebuggerForm still looks at Form1 for data. These properties act
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// as a bridge, instantly passing the request down to the actual engine!
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public ushort? Breakpoint
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{
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get => _machine?.Breakpoint;
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set { if (_machine != null) _machine.Breakpoint = value; }
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}
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public long TotalFrameCount => _machine?.TotalFrameCount ?? 0;
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public double FramesPerSecond => _machine?.FramesPerSecond ?? 0;
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public double FrameTime => _machine?.FrameTime ?? 0;
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private bool tapePlaying = false;
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public Form1()
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{
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InitializeComponent();
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PopulateIncludedTapsMenu();
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this.DoubleBuffered = true;
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this.ResizeRedraw = true;
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InitializeEmulator();
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}
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private void InitializeEmulator()
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{
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try
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{
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_baseTitle = this.Text;
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// Initialize the physical audio device first
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_beeper = new BeeperDevice();
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// Spin up the entire Spectrum inside the Core!
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_machine = new SpectrumMachine(_beeper);
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// --- WIRE UP THE UI EVENTS ---
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// Tell the machine: "Whenever a frame is done, hand it to my UpdateScreen method!"
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_machine.OnFrameReady += Machine_OnFrameReady;
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_machine.OnStatsUpdated += Machine_OnStatsUpdated;
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_machine.OnMachineCrashed += Machine_OnMachineCrashed;
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// Sync the UI checkmarks with the Machine's default settings
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fastLoadToolStripMenuItem.Checked = _machine.EnableFastLoad;
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HighSpeedToolStripMenuItem.Checked = _machine.HighSpeedMode;
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// Load the ROM and start the engine
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byte[] romData = RomLoader.Load("48.rom");
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_machine.LoadRom(romData);
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_machine.Start();
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}
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catch (Exception ex)
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{
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MessageBox.Show($"Failed to initialize emulator:\n{ex.Message}", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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// ====================================================================
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// EVENT HANDLERS (How the Machine talks to the UI)
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// ====================================================================
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private void Machine_OnFrameReady(int[] pixels)
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{
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// We must use BeginInvoke because the Machine is running on a background thread!
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this.BeginInvoke((System.Windows.Forms.MethodInvoker)delegate
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{
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UpdateScreenBitmap(pixels);
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this.Invalidate(); // Triggers OnPaint
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});
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}
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private void Machine_OnStatsUpdated(double fps, bool hasTape)
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{
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this.BeginInvoke((System.Windows.Forms.MethodInvoker)delegate
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{
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this.Text = $"{_baseTitle} - FPS: {fps:F1} - Tape Loaded: {hasTape}";
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});
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}
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private void Machine_OnMachineCrashed(string errorMessage)
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{
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this.BeginInvoke((System.Windows.Forms.MethodInvoker)delegate
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{
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MessageBox.Show(errorMessage, "CPU Crash", MessageBoxButtons.OK, MessageBoxIcon.Error);
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});
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}
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// ====================================================================
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// RENDERING
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// ====================================================================
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private void UpdateScreenBitmap(int[] pixels)
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{
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Bitmap bmp = new Bitmap(ULA.ScreenWidth, ULA.ScreenHeight, PixelFormat.Format32bppArgb);
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BitmapData bmpData = bmp.LockBits(
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new Rectangle(0, 0, ULA.ScreenWidth, ULA.ScreenHeight),
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ImageLockMode.WriteOnly,
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bmp.PixelFormat);
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Marshal.Copy(pixels, 0, bmpData.Scan0, pixels.Length);
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bmp.UnlockBits(bmpData);
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if (_screenBitmap != null) _screenBitmap.Dispose();
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_screenBitmap = bmp;
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}
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protected override void OnPaint(PaintEventArgs e)
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{
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base.OnPaint(e);
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if (_screenBitmap == null)
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{
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e.Graphics.Clear(Color.Black);
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return;
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}
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float scaleX = (float)this.ClientSize.Width / _screenBitmap.Width;
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float scaleY = (float)this.ClientSize.Height / _screenBitmap.Height;
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float scale = Math.Min(scaleX, scaleY);
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int newWidth = (int)(_screenBitmap.Width * scale);
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int newHeight = (int)(_screenBitmap.Height * scale);
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int posX = (this.ClientSize.Width - newWidth) / 2;
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int posY = (this.ClientSize.Height - newHeight) / 2;
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e.Graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;
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e.Graphics.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.Half;
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e.Graphics.Clear(Color.Black);
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e.Graphics.DrawImage(_screenBitmap, posX, posY, newWidth, newHeight);
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}
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// ====================================================================
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// USER INPUT (Keyboard)
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// ====================================================================
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protected override void OnKeyDown(KeyEventArgs e)
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{
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HandleKey(e.KeyCode, true);
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base.OnKeyDown(e);
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}
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protected override void OnKeyUp(KeyEventArgs e)
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{
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HandleKey(e.KeyCode, false);
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base.OnKeyUp(e);
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}
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private void HandleKey(Keys key, bool isPressed)
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{
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switch (key)
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{
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case Keys.ShiftKey: UpdateMatrix(0, 0, isPressed); break;
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case Keys.Z: UpdateMatrix(0, 1, isPressed); break;
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case Keys.X: UpdateMatrix(0, 2, isPressed); break;
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case Keys.C: UpdateMatrix(0, 3, isPressed); break;
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case Keys.V: UpdateMatrix(0, 4, isPressed); break;
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case Keys.A: UpdateMatrix(1, 0, isPressed); break;
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case Keys.S: UpdateMatrix(1, 1, isPressed); break;
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case Keys.D: UpdateMatrix(1, 2, isPressed); break;
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case Keys.F: UpdateMatrix(1, 3, isPressed); break;
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case Keys.G: UpdateMatrix(1, 4, isPressed); break;
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case Keys.Q: UpdateMatrix(2, 0, isPressed); break;
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case Keys.W: UpdateMatrix(2, 1, isPressed); break;
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case Keys.E: UpdateMatrix(2, 2, isPressed); break;
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case Keys.R: UpdateMatrix(2, 3, isPressed); break;
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case Keys.T: UpdateMatrix(2, 4, isPressed); break;
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case Keys.D1: UpdateMatrix(3, 0, isPressed); break;
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case Keys.D2: UpdateMatrix(3, 1, isPressed); break;
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case Keys.D3: UpdateMatrix(3, 2, isPressed); break;
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case Keys.D4: UpdateMatrix(3, 3, isPressed); break;
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case Keys.D5: UpdateMatrix(3, 4, isPressed); break;
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case Keys.D0: UpdateMatrix(4, 0, isPressed); break;
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case Keys.D9: UpdateMatrix(4, 1, isPressed); break;
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case Keys.D8: UpdateMatrix(4, 2, isPressed); break;
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case Keys.D7: UpdateMatrix(4, 3, isPressed); break;
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case Keys.D6: UpdateMatrix(4, 4, isPressed); break;
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case Keys.P: UpdateMatrix(5, 0, isPressed); break;
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case Keys.O: UpdateMatrix(5, 1, isPressed); break;
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case Keys.I: UpdateMatrix(5, 2, isPressed); break;
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case Keys.U: UpdateMatrix(5, 3, isPressed); break;
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case Keys.Y: UpdateMatrix(5, 4, isPressed); break;
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case Keys.Enter: UpdateMatrix(6, 0, isPressed); break;
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case Keys.L: UpdateMatrix(6, 1, isPressed); break;
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case Keys.K: UpdateMatrix(6, 2, isPressed); break;
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case Keys.J: UpdateMatrix(6, 3, isPressed); break;
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case Keys.H: UpdateMatrix(6, 4, isPressed); break;
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case Keys.Space: UpdateMatrix(7, 0, isPressed); break;
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case Keys.ControlKey: UpdateMatrix(7, 1, isPressed); break;
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case Keys.M: UpdateMatrix(7, 2, isPressed); break;
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case Keys.N: UpdateMatrix(7, 3, isPressed); break;
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case Keys.B: UpdateMatrix(7, 4, isPressed); break;
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}
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}
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private void UpdateMatrix(int row, int col, bool isPressed)
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{
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// Talk directly to the machine's IO Bus!
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if (isPressed)
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_machine.IoBus.KeyboardRows[row] &= (byte)~(1 << col);
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else
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_machine.IoBus.KeyboardRows[row] |= (byte)(1 << col);
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}
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// ====================================================================
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// MENU CONTROLS
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// ====================================================================
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private void btnRun_Click(object sender, EventArgs e) => _machine.Resume();
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private void btnPause_Click(object sender, EventArgs e) => _machine.Pause();
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private void btnReset_Click(object sender, EventArgs e) => _machine.Reset();
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private void btnExit_Click(object sender, EventArgs e) => Environment.Exit(0);
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private void btnStep_Click(object sender, EventArgs e)
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{
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// Only allow stepping if we know the main loop is paused
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_machine.Cpu.Step();
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}
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private void btnHighSpeedToggle_Click(object sender, EventArgs e)
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{
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HighSpeedToolStripMenuItem.Checked = !HighSpeedToolStripMenuItem.Checked;
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_machine.HighSpeedMode = HighSpeedToolStripMenuItem.Checked;
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}
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private void fastLoadToolStripMenuItem_Click(object sender, EventArgs e)
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{
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fastLoadToolStripMenuItem.Checked = !fastLoadToolStripMenuItem.Checked;
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_machine.EnableFastLoad = fastLoadToolStripMenuItem.Checked;
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}
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private void playTapeToolStripMenuItem_Click(object sender, EventArgs e)
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{
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if (playTapeToolStripMenuItem.Text == "Play Tape")
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{
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playTapeToolStripMenuItem.Text = "Stop Tape";
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_machine.TapeDeck.Play();
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tapePlaying = true;
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}
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else
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{
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playTapeToolStripMenuItem.Text = "Play Tape";
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_machine.TapeDeck.Stop();
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tapePlaying = false;
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}
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}
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private void loadTAPToolStripMenuItem_Click(object sender, EventArgs e)
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{
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_machine.Pause();
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using (OpenFileDialog ofd = new OpenFileDialog())
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{
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ofd.Filter = "Spectrum TAP Files|*.tap";
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if (ofd.ShowDialog() == DialogResult.OK)
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{
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byte[] tapBytes = File.ReadAllBytes(ofd.FileName);
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_machine.TapeDeck.LoadTapData(tapBytes);
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}
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}
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_machine.Resume();
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}
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private void PopulateIncludedTapsMenu()
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{
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Assembly assembly = Assembly.GetExecutingAssembly();
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string[] resourceNames = assembly.GetManifestResourceNames();
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foreach (string resourceName in resourceNames)
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{
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if (resourceName.Contains("Desktop.ROMS.TAP.") && resourceName.EndsWith(".TAP", StringComparison.OrdinalIgnoreCase))
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{
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string[] parts = resourceName.Split('.');
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string displayName = parts[parts.Length - 2];
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ToolStripMenuItem item = new ToolStripMenuItem(displayName) { Tag = resourceName };
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item.Click += IncludedTapMenuItem_Click;
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tAPToolStripMenuItem1.DropDownItems.Add(item);
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}
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}
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}
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private void IncludedTapMenuItem_Click(object? sender, EventArgs e)
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{
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if (sender is ToolStripMenuItem item && item.Tag is string resourceName)
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{
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_machine.Pause();
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try
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{
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Assembly assembly = Assembly.GetExecutingAssembly();
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using (Stream? stream = assembly.GetManifestResourceStream(resourceName))
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{
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if (stream == null) throw new Exception("Could not find embedded resource.");
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using (MemoryStream ms = new MemoryStream())
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{
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stream.CopyTo(ms);
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_machine.TapeDeck.LoadTapData(ms.ToArray());
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}
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}
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}
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catch (Exception ex)
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{
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MessageBox.Show($"Failed to load built-in TAP:\n{ex.Message}", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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finally
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{
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_machine.Resume();
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}
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}
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}
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private void openDebuggerToolStripMenuItem_Click(object sender, EventArgs e)
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{
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if (_debugger == null || _debugger.IsDisposed)
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{
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_debugger = new DebuggerForm(_machine.Cpu, _machine.Memory, this);
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_debugger.Show();
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}
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else
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{
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_debugger.BringToFront();
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}
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}
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// ====================================================================
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// SNAPSHOTS (Temporarily patched to use _machine hardware)
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// ====================================================================
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private void openSNAToolStripMenuItem_Click(object sender, EventArgs e)
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{
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_machine.Pause();
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using (OpenFileDialog ofd = new OpenFileDialog())
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{
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ofd.Filter = "Snapshot Files (sna,z80)|*.sna";
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if (ofd.ShowDialog() == DialogResult.OK)
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{
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byte[] snaBytes = File.ReadAllBytes(ofd.FileName);
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_machine.LoadSnapshot(snaBytes);
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}
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}
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_machine.Resume();
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}
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private void SaveSNAMenuItem_Click(object? sender, EventArgs e)
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{
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_machine.Pause();
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using (SaveFileDialog sfd = new SaveFileDialog())
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{
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sfd.Filter = "Spectrum SNA Files|*.sna";
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if (sfd.ShowDialog() == DialogResult.OK)
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{
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_machine.SaveSnapshot(sfd.FileName);
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}
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}
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_machine.Resume();
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}
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}
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} |