From 10c2186966daac7d3b349b3e92f18d48a9550ed1 Mon Sep 17 00:00:00 2001
From: jracek <racek.janek@gmail.com>
Date: Wed, 12 Feb 2025 20:54:39 +0100
Subject: [PATCH] Added VRAM editor: fbuffer and prohibited area sections

---
 Editor/VramEditorWindow.cs      | 134 ++++++++++++++++++++++++++++++++
 Editor/VramEditorWindow.cs.meta |   2 +
 2 files changed, 136 insertions(+)
 create mode 100644 Editor/VramEditorWindow.cs
 create mode 100644 Editor/VramEditorWindow.cs.meta

diff --git a/Editor/VramEditorWindow.cs b/Editor/VramEditorWindow.cs
new file mode 100644
index 0000000..31745ff
--- /dev/null
+++ b/Editor/VramEditorWindow.cs
@@ -0,0 +1,134 @@
+using System.Collections.Generic;
+using PSXSplash.RuntimeCode;
+using Unity.Collections;
+using UnityEditor;
+using UnityEngine;
+using UnityEngine.Rendering;
+
+public class VRAMEditorWindow : EditorWindow
+{
+    class ProhibitedArea
+    {
+        public int X;
+        public int Y;
+        public int Width;
+        public int Height;
+    }
+
+    private const int VramWidth = 1024;
+    private const int VramHeight = 512;
+    private VRAMPixel[,] vramPixels = new VRAMPixel[VramWidth, VramHeight];
+    private List<ProhibitedArea> prohibitedAreas = new List<ProhibitedArea>();
+    private Vector2 scrollPosition;
+    private Texture2D vramImage;
+    private Vector2 selectedResolution = new Vector2(320, 240);
+    private bool dualBuffering = true;
+    private bool verticalLayout = true;
+    private Color bufferColor1 = new Color(1, 0, 0, 0.5f);
+    private Color bufferColor2 = new Color(0, 1, 0, 0.5f);
+    private Color prohibitedColor = new Color(1, 0, 0, 0.3f);
+
+    private static readonly Vector2[] resolutions =
+    {
+        new Vector2(256, 240), new Vector2(256, 480),
+        new Vector2(320, 240), new Vector2(320, 480),
+        new Vector2(368, 240), new Vector2(368, 480),
+        new Vector2(512, 240), new Vector2(512, 480),
+        new Vector2(640, 240), new Vector2(640, 480)
+    };
+
+    [MenuItem("Window/VRAM Editor")]
+    public static void ShowWindow()
+    {
+        GetWindow<VRAMEditorWindow>("VRAM Editor");
+    }
+
+
+
+    private void OnGUI()
+    {
+        vramImage = new Texture2D(VramWidth, VramHeight);
+
+        NativeArray<Color32> blackPixels = new NativeArray<Color32>(VramWidth * VramHeight, Allocator.Temp);
+        vramImage.SetPixelData(blackPixels, 0);
+        vramImage.Apply();
+        blackPixels.Dispose();
+
+        GUILayout.BeginHorizontal();
+        GUILayout.BeginVertical();
+        GUILayout.Label("VRAM Editor", EditorStyles.boldLabel);
+
+        selectedResolution = resolutions[EditorGUILayout.Popup("Resolution", System.Array.IndexOf(resolutions, selectedResolution),
+            new string[] { "256x240", "256x480", "320x240", "320x480", "368x240", "368x480", "512x240", "512x480", "640x240", "640x480" })];
+
+        bool canDBHorizontal = selectedResolution[0]*2 <= 1024;
+        bool canDBVertical = selectedResolution[1]*2 <= 512;
+
+        if(canDBHorizontal || canDBVertical) { 
+            dualBuffering = EditorGUILayout.Toggle("Dual Buffering", dualBuffering);
+        }
+        else {dualBuffering = false;}   
+        
+        if(canDBVertical && canDBHorizontal) {
+            verticalLayout = EditorGUILayout.Toggle("Vertical", verticalLayout);
+        }
+        else if (canDBVertical) {verticalLayout = true;}
+        else {
+            verticalLayout = false;
+        }
+
+        GUILayout.Space(10);
+        GUILayout.Label("Prohibited areas", EditorStyles.boldLabel);
+        scrollPosition = GUILayout.BeginScrollView(scrollPosition, GUILayout.MaxHeight(150f));
+
+        for (int i = 0; i < prohibitedAreas.Count; i++)
+        {
+            var area = prohibitedAreas[i];
+
+            area.X = EditorGUILayout.IntField("X", area.X);
+            area.Y = EditorGUILayout.IntField("Y", area.Y);
+            area.Width = EditorGUILayout.IntField("Width", area.Width);
+            area.Height = EditorGUILayout.IntField("Height", area.Height);
+
+            if (GUILayout.Button("Remove"))
+            {
+                prohibitedAreas.RemoveAt(i);
+                break; // Avoid out-of-bounds errors after removal
+            }
+
+            prohibitedAreas[i] = area; // Update the list with edited values
+            GUILayout.Space(10);
+        }
+
+        GUILayout.EndScrollView();
+        GUILayout.Space(10);
+        if (GUILayout.Button("Add Prohibited Area"))
+        {
+            prohibitedAreas.Add(new ProhibitedArea());
+        }
+        GUILayout.EndVertical();
+
+        Rect vramRect = GUILayoutUtility.GetRect(VramWidth, VramHeight, GUILayout.ExpandWidth(false));
+        EditorGUI.DrawPreviewTexture(vramRect, vramImage, null, ScaleMode.ScaleToFit, 0, 0, ColorWriteMask.All);
+
+        Rect buffer1 = new Rect(vramRect.x, vramRect.y, selectedResolution.x, selectedResolution.y);
+        Rect buffer2 = verticalLayout ? new Rect(vramRect.x, 256, selectedResolution.x, selectedResolution.y)
+                                      : new Rect(vramRect.x + selectedResolution.x, vramRect.y, selectedResolution.x, selectedResolution.y);
+
+        EditorGUI.DrawRect(buffer1, bufferColor1);
+        GUI.Label(new Rect(buffer1.center.x - 40, buffer1.center.y - 10, 80, 20), "Framebuffer A", EditorStyles.boldLabel);
+        GUILayout.Space(10);
+        if (dualBuffering)
+        {
+            EditorGUI.DrawRect(buffer2, bufferColor2);
+            GUI.Label(new Rect(buffer2.center.x - 40, buffer2.center.y - 10, 80, 20), "Framebuffer B", EditorStyles.boldLabel);
+        }
+
+        foreach(ProhibitedArea area in prohibitedAreas) {
+            Rect areaRect = new Rect(vramRect.x + area.X, vramRect.y + area.Y, area.Width, area.Height);
+            EditorGUI.DrawRect(areaRect, prohibitedColor);
+        }
+
+        GUILayout.EndHorizontal();
+    }
+}
\ No newline at end of file
diff --git a/Editor/VramEditorWindow.cs.meta b/Editor/VramEditorWindow.cs.meta
new file mode 100644
index 0000000..976b58c
--- /dev/null
+++ b/Editor/VramEditorWindow.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 43d3353989eb9b202b0239df160be6d8
\ No newline at end of file