First OS Agnostic Commit

2026-05-31 00:24:14 +01:00
parent 2f332ff224
commit 2300e2931e
4 changed files with 182 additions and 1 deletions
--- a/Parsons.Steamdeck/Parsons.Steamdeck.csproj
+++ b/Parsons.Steamdeck/Parsons.Steamdeck.csproj
@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+	<PropertyGroup>
+		<OutputType>Exe</OutputType>
+		<TargetFramework>net8.0</TargetFramework>
+		<ImplicitUsings>enable</ImplicitUsings>
+		<Nullable>enable</Nullable>
+
+		<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+		<PublishAot>true</PublishAot>
+		<OptimizationPreference>Size</OptimizationPreference>
+	</PropertyGroup>
+
+	<ItemGroup>
+	  <PackageReference Include="Raylib-cs" Version="8.0.0" />
+	</ItemGroup>
+
+	<ItemGroup>
+	  <ProjectReference Include="..\Core\Core.csproj" />
+	</ItemGroup>
+
+</Project>
--- a/Parsons.Steamdeck/Program.cs
+++ b/Parsons.Steamdeck/Program.cs
@@ -0,0 +1,125 @@
+using System;
+using System.IO;
+using System.Numerics;
+using Core;
+using Raylib_cs;
+
+namespace Parsons.SteamDeck
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            // 1. Initialize Cross-Platform OpenGL Window
+            // THE FIX: Use PascalCase C# enums
+            Raylib.SetConfigFlags(ConfigFlags.ResizableWindow);
+            Raylib.InitWindow(1280, 800, "Parsons Master System"); // Native Steam Deck Resolution
+            Raylib.InitAudioDevice();
+
+            // 2. Initialize Hardware-Agnostic Audio Stream (44.1kHz, 32-bit float, Mono)
+            AudioStream audioStream = Raylib.LoadAudioStream(44100, 32, 1);
+            Raylib.PlayAudioStream(audioStream);
+
+            // 3. Boot the Core Emulator
+            SmsMachine machine = new SmsMachine();
+            RaylibAudioPlayer audioPlayer = new RaylibAudioPlayer();
+            machine.AudioProcessor.AudioDevice = audioPlayer;
+
+            // Load a ROM (Passed via command line argument, e.g. ./Parsons.SteamDeck sonic.sms)
+            if (args.Length > 0 && File.Exists(args[0]))
+            {
+                machine.LoadCartridge(File.ReadAllBytes(args[0]));
+                bool isGG = args[0].EndsWith(".gg", StringComparison.OrdinalIgnoreCase);
+                machine.VideoProcessor.IsGameGear = isGG;
+            }
+
+            // Lock the engine loop to 60 FPS natively
+            Raylib.SetTargetFPS(60);
+
+            // 4. Prepare the Video Texture Pipeline
+            // THE FIX: Use Color.Black
+            Image img = Raylib.GenImageColor(256, 192, Color.Black);
+            Texture2D vdpTexture = Raylib.LoadTextureFromImage(img);
+            byte[] pixelBuffer = new byte[256 * 192 * 4]; // Fast RGBA translation array
+
+            // --- THE MAIN GAME LOOP ---
+            while (!Raylib.WindowShouldClose())
+            {
+                // A. OS-Agnostic Input Polling (Works on Keyboard AND Steam Deck Controller)
+                // THE FIX: PascalCase KeyboardKey and GamepadButton enums
+                byte pad = 0xFF;
+                if (Raylib.IsKeyDown(KeyboardKey.Up) || Raylib.IsGamepadButtonDown(0, GamepadButton.LeftFaceUp)) pad &= 0xFE;
+                if (Raylib.IsKeyDown(KeyboardKey.Down) || Raylib.IsGamepadButtonDown(0, GamepadButton.LeftFaceDown)) pad &= 0xFD;
+                if (Raylib.IsKeyDown(KeyboardKey.Left) || Raylib.IsGamepadButtonDown(0, GamepadButton.LeftFaceLeft)) pad &= 0xFB;
+                if (Raylib.IsKeyDown(KeyboardKey.Right) || Raylib.IsGamepadButtonDown(0, GamepadButton.LeftFaceRight)) pad &= 0xF7;
+
+                // Steam Deck "A" Button is RightFaceDown. "B" Button is RightFaceRight.
+                if (Raylib.IsKeyDown(KeyboardKey.Z) || Raylib.IsGamepadButtonDown(0, GamepadButton.RightFaceDown)) pad &= 0xEF; // B1 / A Button
+                if (Raylib.IsKeyDown(KeyboardKey.X) || Raylib.IsGamepadButtonDown(0, GamepadButton.RightFaceRight)) pad &= 0xDF; // B2 / B Button
+
+                machine.IoBus.Joypad1Keyboard = pad;
+
+                // B. Execute exactly one frame of T-States
+                machine.RunFrame();
+
+                // C. Flush Audio Buffer to the Sound Card
+                if (Raylib.IsAudioStreamProcessed(audioStream))
+                {
+                    float[] samples = audioPlayer.GetQueuedSamples();
+                    if (samples.Length > 0)
+                    {
+                        unsafe
+                        {
+                            fixed (float* p = samples)
+                            {
+                                Raylib.UpdateAudioStream(audioStream, p, samples.Length);
+                            }
+                        }
+                    }
+                }
+
+                // D. Fast Pixel Translation (ARGB int -> RGBA bytes)
+                int[] frameBuffer = machine.VideoProcessor.FrameBuffer;
+                for (int i = 0; i < frameBuffer.Length; i++)
+                {
+                    int argb = frameBuffer[i];
+                    pixelBuffer[i * 4 + 0] = (byte)((argb >> 16) & 0xFF); // R
+                    pixelBuffer[i * 4 + 1] = (byte)((argb >> 8) & 0xFF);  // G
+                    pixelBuffer[i * 4 + 2] = (byte)(argb & 0xFF);         // B
+                    pixelBuffer[i * 4 + 3] = 255;                         // A
+                }
+
+                // Push bytes directly to the GPU Texture
+                unsafe
+                {
+                    fixed (byte* p = pixelBuffer)
+                    {
+                        Raylib.UpdateTexture(vdpTexture, p);
+                    }
+                }
+
+                // E. Render to Screen (Perfect Aspect Ratio Scaling)
+                Raylib.BeginDrawing();
+                Raylib.ClearBackground(Color.Black);
+
+                float scale = Math.Min((float)Raylib.GetScreenWidth() / 256, (float)Raylib.GetScreenHeight() / 192);
+                Rectangle sourceRec = new Rectangle(0, 0, 256, 192);
+                Rectangle destRec = new Rectangle(
+                    (Raylib.GetScreenWidth() - (256 * scale)) * 0.5f,
+                    (Raylib.GetScreenHeight() - (192 * scale)) * 0.5f,
+                    256 * scale, 192 * scale);
+
+                // Draw the VDP Frame
+                Raylib.DrawTexturePro(vdpTexture, sourceRec, destRec, new Vector2(0, 0), 0.0f, Color.White);
+
+                Raylib.EndDrawing();
+            }
+
+            // Clean up hardware resources on exit
+            Raylib.UnloadTexture(vdpTexture);
+            Raylib.UnloadAudioStream(audioStream);
+            Raylib.CloseAudioDevice();
+            Raylib.CloseWindow();
+        }
+    }
+}
--- a/Parsons.Steamdeck/RaylibAudioPlayer.cs
+++ b/Parsons.Steamdeck/RaylibAudioPlayer.cs
@@ -0,0 +1,28 @@
+using Core.Interfaces;
+using System.Collections.Concurrent;
+
+namespace Parsons.SteamDeck
+{
+    public class RaylibAudioPlayer : IAudioDevice
+    {
+        private ConcurrentQueue<float> _sampleQueue = new ConcurrentQueue<float>();
+
+        public void AddSample(float sample)
+        {
+            // Queue the sample from the emulator core
+            _sampleQueue.Enqueue(sample);
+        }
+
+        public float[] GetQueuedSamples()
+        {
+            // Pull all pending samples out of the queue to send to the sound card
+            int count = _sampleQueue.Count;
+            float[] buffer = new float[count];
+            for (int i = 0; i < count; i++)
+            {
+                _sampleQueue.TryDequeue(out buffer[i]);
+            }
+            return buffer;
+        }
+    }
+}
--- a/ParsonsMasterSystem2026.sln
+++ b/ParsonsMasterSystem2026.sln
@@ -1,12 +1,14 @@

 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
-VisualStudioVersion = 17.14.37216.2 d17.14
+VisualStudioVersion = 17.14.37216.2
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Desktop", "Desktop\Desktop.csproj", "{E245F3A5-E541-43BB-B64E-B4B2BB3D8C51}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Core", "Core\Core.csproj", "{B0A741E4-CE3E-4DF0-96B2-E314973F9201}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Parsons.Steamdeck", "Parsons.Steamdeck\Parsons.Steamdeck.csproj", "{B619DF68-7EBF-4C6A-AC24-AD5250404943}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -21,6 +23,10 @@ Global
 		{B0A741E4-CE3E-4DF0-96B2-E314973F9201}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{B0A741E4-CE3E-4DF0-96B2-E314973F9201}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{B0A741E4-CE3E-4DF0-96B2-E314973F9201}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B619DF68-7EBF-4C6A-AC24-AD5250404943}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B619DF68-7EBF-4C6A-AC24-AD5250404943}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B619DF68-7EBF-4C6A-AC24-AD5250404943}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B619DF68-7EBF-4C6A-AC24-AD5250404943}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE