Merge pull request #2 from aliakseikalosha/splashpack

Splashpack

Editor/QuantizedPreviewWindow.cs

@@ -14,7 +14,7 @@ namespace SplashEdit.EditorCode
         private Texture2D vramTexture; // VRAM representation of the texture
         private List<VRAMPixel> clut; // Color Lookup Table (CLUT), stored as a 1D list
         private ushort[] indexedPixelData; // Indexed pixel data for VRAM storage
-        private PSXBPP bpp;
+        private PSXBPP bpp = PSXBPP.TEX_4BIT;
         private readonly int previewSize = 256;
 
         [MenuItem("Window/Quantized Preview")]

Editor/VramEditorWindow.cs

@@ -12,8 +12,10 @@ namespace SplashEdit.EditorCode
 {
     public class VRAMEditorWindow : EditorWindow
     {
-        private const int VramWidth = 1024;
+        private int VramWidth => VRAMPacker.VramWidth;
-        private const int VramHeight = 512;
+        private int VramHeight => VRAMPacker.VramHeight;
+
+        private static readonly Vector2 MinSize = new Vector2(800, 600);
         private List<ProhibitedArea> prohibitedAreas = new List<ProhibitedArea>();
         private Vector2 scrollPosition;
         private Texture2D vramImage;
@@ -33,13 +35,14 @@ namespace SplashEdit.EditorCode
         new Vector2(512, 240), new Vector2(512, 480),
         new Vector2(640, 240), new Vector2(640, 480)
         };
+        private static string[] resolutionsStrings => resolutions.Select(c => $"{c.x}x{c.y}").ToArray();
 
         [MenuItem("Window/VRAM Editor")]
         public static void ShowWindow()
         {
             VRAMEditorWindow window = GetWindow<VRAMEditorWindow>("VRAM Editor");
             // Set minimum window dimensions.
-            window.minSize = new Vector2(1600, 600);
+            window.minSize = MinSize;
         }
 
         private void OnEnable()
@@ -52,13 +55,9 @@ namespace SplashEdit.EditorCode
             blackPixels.Dispose();
 
             // Ensure minimum window size is applied.
-            this.minSize = new Vector2(800, 600);
+            this.minSize = MinSize;
 
-            _psxData = DataStorage.LoadData();
+            _psxData = DataStorage.LoadData(out selectedResolution, out dualBuffering, out verticalLayout, out prohibitedAreas);
-            selectedResolution = _psxData.OutputResolution;
-            dualBuffering = _psxData.DualBuffering;
-            verticalLayout = _psxData.VerticalBuffering;
-            prohibitedAreas = _psxData.ProhibitedAreas;
         }
 
         /// <summary>
@@ -120,9 +119,7 @@ namespace SplashEdit.EditorCode
             }
 
             // Define framebuffer regions based on selected resolution and layout.
-            Rect buffer1 = new Rect(0, 0, selectedResolution.x, selectedResolution.y);
+            (Rect buffer1, Rect buffer2) = Utils.BufferForResolution(selectedResolution, verticalLayout);
-            Rect buffer2 = verticalLayout ? new Rect(0, 256, selectedResolution.x, selectedResolution.y)
-                                          : new Rect(selectedResolution.x, 0, selectedResolution.x, selectedResolution.y);
 
             List<Rect> framebuffers = new List<Rect> { buffer1 };
             if (dualBuffering)
@@ -169,12 +166,11 @@ namespace SplashEdit.EditorCode
             GUILayout.Label("VRAM Editor", EditorStyles.boldLabel);
 
             // Dropdown for resolution selection.
-            selectedResolution = resolutions[EditorGUILayout.Popup("Resolution", System.Array.IndexOf(resolutions, selectedResolution),
+            selectedResolution = resolutions[EditorGUILayout.Popup("Resolution", System.Array.IndexOf(resolutions, selectedResolution), resolutionsStrings)];
-                new string[] { "256x240", "256x480", "320x240", "320x480", "368x240", "368x480", "512x240", "512x480", "640x240", "640x480" })];
 
             // Check resolution constraints for dual buffering.
-            bool canDBHorizontal = selectedResolution[0] * 2 <= 1024;
+            bool canDBHorizontal = selectedResolution.x * 2 <= VramWidth;
-            bool canDBVertical = selectedResolution[1] * 2 <= 512;
+            bool canDBVertical = selectedResolution.y * 2 <= VramHeight;
 
             if (canDBHorizontal || canDBVertical)
             {
@@ -271,12 +267,13 @@ namespace SplashEdit.EditorCode
 
             // Display VRAM image preview.
             Rect vramRect = GUILayoutUtility.GetRect(VramWidth, VramHeight, GUILayout.ExpandWidth(false));
+            if (vramImage)
+            {
                 EditorGUI.DrawPreviewTexture(vramRect, vramImage, null, ScaleMode.ScaleToFit, 0, 0, ColorWriteMask.All);
+            }
 
             // Draw framebuffer overlays.
-            Rect buffer1 = new Rect(vramRect.x, vramRect.y, selectedResolution.x, selectedResolution.y);
+            (Rect buffer1, Rect buffer2) = Utils.BufferForResolution(selectedResolution, verticalLayout, vramRect.min);
-            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, 120, 20), "Framebuffer A", EditorStyles.boldLabel);

LICENSE

@@ -0,0 +1,674 @@
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+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

LICENSE.meta

@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: c1679c9d58898f14494d614dfe5f76a6
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Runtime/PSXMesh.cs

@@ -1,7 +1,6 @@
 using System.Collections.Generic;
 using System.Linq;
 using UnityEngine;
-using UnityEngine.Diagnostics;
 
 namespace SplashEdit.RuntimeCode
 {
@@ -30,6 +29,7 @@ namespace SplashEdit.RuntimeCode
         public PSXVertex v2;
 
         public PSXTexture2D Texture;
+        public readonly PSXVertex[] Vertexes => new PSXVertex[] { v0, v1, v2 };
     }
 
     /// <summary>
@@ -115,11 +115,24 @@ namespace SplashEdit.RuntimeCode
                 }
 
                 // Get mesh data arrays.
+                mesh.RecalculateNormals();
                 Vector3[] vertices = mesh.vertices;
-                Vector3[] normals =  mesh.normals;// Assuming this function recalculates normals
+                Vector3[] normals = mesh.normals;
                 Vector3[] smoothNormals = RecalculateSmoothNormals(mesh);
                 Vector2[] uv = mesh.uv;
-
+                PSXVertex convertData(int index)
+                {
+                    // Scale the vertex based on world scale.
+                    Vector3 v = Vector3.Scale(vertices[index], transform.lossyScale);
+                    // Transform the vertex to world space.
+                    Vector3 wv = transform.TransformPoint(vertices[index]);
+                    // Transform the normals to world space.
+                    Vector3 wn = transform.TransformDirection(smoothNormals[index]).normalized;
+                    // Compute lighting for each vertex (this can be a custom function).
+                    Color c = PSXLightingBaker.ComputeLighting(wv, wn);
+                    // Convert vertex to PSX format, including fixed-point conversion and shading.
+                    return ConvertToPSXVertex(v, GTEScaling, normals[index], uv[index], psxTexture?.Width, psxTexture?.Height, c);
+                }
                 // Iterate through the triangles of the submesh.
                 for (int i = 0; i < submeshTriangles.Length; i += 3)
                 {
@@ -134,46 +147,8 @@ namespace SplashEdit.RuntimeCode
                         (vid1, vid2) = (vid2, vid1);
                     }
 
-                    // Scale the vertices based on world scale.
-                    Vector3 v0 = Vector3.Scale(vertices[vid0], transform.lossyScale);
-                    Vector3 v1 = Vector3.Scale(vertices[vid1], transform.lossyScale);
-                    Vector3 v2 = Vector3.Scale(vertices[vid2], transform.lossyScale);
-
-                    // Transform the vertices to world space.
-                    Vector3 wv0 = transform.TransformPoint(vertices[vid0]);
-                    Vector3 wv1 = transform.TransformPoint(vertices[vid1]);
-                    Vector3 wv2 = transform.TransformPoint(vertices[vid2]);
-
-                    // Transform the normals to world space.
-                    Vector3 wn0 = transform.TransformDirection(smoothNormals[vid0]).normalized;
-                    Vector3 wn1 = transform.TransformDirection(smoothNormals[vid1]).normalized;
-                    Vector3 wn2 = transform.TransformDirection(smoothNormals[vid2]).normalized;
-
-                    // Compute lighting for each vertex (this can be a custom function).
-                    Color cv0 = PSXLightingBaker.ComputeLighting(wv0, wn0);
-                    Color cv1 = PSXLightingBaker.ComputeLighting(wv1, wn1);
-                    Color cv2 = PSXLightingBaker.ComputeLighting(wv2, wn2);
-
-                    // Convert vertices to PSX format, including fixed-point conversion and shading.
-                    PSXVertex psxV0 = ConvertToPSXVertex(v0, GTEScaling, normals[vid0], uv[vid0], psxTexture?.Width ?? 0, psxTexture?.Height ?? 0);
-                    PSXVertex psxV1 = ConvertToPSXVertex(v1, GTEScaling, normals[vid1], uv[vid1], psxTexture?.Width ?? 0, psxTexture?.Height ?? 0);
-                    PSXVertex psxV2 = ConvertToPSXVertex(v2, GTEScaling, normals[vid2], uv[vid2], psxTexture?.Width ?? 0, psxTexture?.Height ?? 0);
-
-                    // Apply lighting to the colors.
-                    psxV0.r = (byte)Mathf.Clamp(cv0.r * 255, 0, 255);
-                    psxV0.g = (byte)Mathf.Clamp(cv0.g * 255, 0, 255);
-                    psxV0.b = (byte)Mathf.Clamp(cv0.b * 255, 0, 255);
-
-                    psxV1.r = (byte)Mathf.Clamp(cv1.r * 255, 0, 255);
-                    psxV1.g = (byte)Mathf.Clamp(cv1.g * 255, 0, 255);
-                    psxV1.b = (byte)Mathf.Clamp(cv1.b * 255, 0, 255);
-
-                    psxV2.r = (byte)Mathf.Clamp(cv2.r * 255, 0, 255);
-                    psxV2.g = (byte)Mathf.Clamp(cv2.g * 255, 0, 255);
-                    psxV2.b = (byte)Mathf.Clamp(cv2.b * 255, 0, 255);
-
                     // Add the constructed triangle to the mesh.
-                    psxMesh.Triangles.Add(new Tri { v0 = psxV0, v1 = psxV1, v2 = psxV2, Texture = psxTexture });
+                    psxMesh.Triangles.Add(new Tri { v0 = convertData(vid0), v1 = convertData(vid0), v2 = convertData(vid0), Texture = psxTexture });
                 }
             }
 
@@ -191,28 +166,30 @@ namespace SplashEdit.RuntimeCode
         /// <param name="textureWidth">Width of the texture for UV scaling.</param>
         /// <param name="textureHeight">Height of the texture for UV scaling.</param>
         /// <returns>A PSXVertex with converted coordinates, normals, UVs, and color.</returns>
-        private static PSXVertex ConvertToPSXVertex(Vector3 vertex, float GTEScaling, Vector3 normal, Vector2 uv, int textureWidth, int textureHeight)
+        private static PSXVertex ConvertToPSXVertex(Vector3 vertex, float GTEScaling, Vector3 normal, Vector2 uv, int? textureWidth, int? textureHeight, Color color)
         {
-
+            int width = textureWidth ?? 0;
-
+            int height = textureHeight ?? 0;
             PSXVertex psxVertex = new PSXVertex
             {
                 // Convert position to fixed-point, clamping values to a defined range.
-                vx = (short)PSXTrig.ConvertCoordinateToPSX(vertex.x, GTEScaling),
+                vx = PSXTrig.ConvertCoordinateToPSX(vertex.x, GTEScaling),
-                vy = (short)PSXTrig.ConvertCoordinateToPSX(-vertex.y, GTEScaling),
+                vy = PSXTrig.ConvertCoordinateToPSX(-vertex.y, GTEScaling),
-                vz = (short)PSXTrig.ConvertCoordinateToPSX(vertex.z, GTEScaling),
+                vz = PSXTrig.ConvertCoordinateToPSX(vertex.z, GTEScaling),
 
                 // Convert normals to fixed-point.
-                nx = (short)PSXTrig.ConvertCoordinateToPSX(normal.x),
+                nx = PSXTrig.ConvertCoordinateToPSX(normal.x),
-                ny = (short)PSXTrig.ConvertCoordinateToPSX(-normal.y),
+                ny = PSXTrig.ConvertCoordinateToPSX(-normal.y),
-                nz = (short)PSXTrig.ConvertCoordinateToPSX(normal.z),
+                nz = PSXTrig.ConvertCoordinateToPSX(normal.z),
 
                 // Map UV coordinates to a byte range after scaling based on texture dimensions.
-                u = (byte)Mathf.Clamp(uv.x * (textureWidth - 1), 0, 255),
+                u = (byte)Mathf.Clamp(uv.x * (width - 1), 0, 255),
-                v = (byte)Mathf.Clamp((1.0f - uv.y) * (textureHeight - 1), 0, 255),
+                v = (byte)Mathf.Clamp((1.0f - uv.y) * (height - 1), 0, 255),
-
-                // Convert the computed color to a byte range.
 
+                // Apply lighting to the colors.
+                r = Utils.Clamp0255(color.r),
+                g = Utils.Clamp0255(color.g),
+                b = Utils.Clamp0255(color.b),
             };
 
             return psxVertex;

Runtime/PSXObjectExporter.cs

@@ -3,18 +3,17 @@ using UnityEngine;
 
 namespace SplashEdit.RuntimeCode
 {
+    [RequireComponent(typeof(Renderer))]
     public class PSXObjectExporter : MonoBehaviour
     {
         public PSXBPP BitDepth = PSXBPP.TEX_8BIT; // Defines the bit depth of the texture (e.g., 4BPP, 8BPP)
 
-        [HideInInspector]
+        public List<PSXTexture2D> Textures { get; set; } = new List<PSXTexture2D>(); // Stores the converted PlayStation-style texture
-        public List<PSXTexture2D> Textures = new List<PSXTexture2D>(); // Stores the converted PlayStation-style texture
+        public PSXMesh Mesh { get; set; } // Stores the converted PlayStation-style mesh
 
-        [HideInInspector]
-        public PSXMesh Mesh; // Stores the converted PlayStation-style mesh
 
-        public bool PreviewNormals = false;
+        [SerializeField] private bool PreviewNormals = false;
-        public float normalPreviewLength = 0.5f; // Length of the normal lines
+        [SerializeField] private float normalPreviewLength = 0.5f; // Length of the normal lines
 
         private void OnDrawGizmos()
         {
@@ -52,10 +51,10 @@ namespace SplashEdit.RuntimeCode
         public void CreatePSXTextures2D()
         {
             Renderer renderer = GetComponent<Renderer>();
+            Textures.Clear();
             if (renderer != null)
             {
                 Material[] materials = renderer.sharedMaterials;
-                Textures = new List<PSXTexture2D>(); // Ensure the list is initialized
 
                 foreach (Material mat in materials)
                 {

Runtime/PSXSceneExporter.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
@@ -25,11 +26,7 @@ namespace SplashEdit.RuntimeCode
 
         public void Export()
         {
-      _psxData = DataStorage.LoadData();
+            _psxData = DataStorage.LoadData(out selectedResolution, out dualBuffering, out verticalLayout, out prohibitedAreas);
-      selectedResolution = _psxData.OutputResolution;
-      dualBuffering = _psxData.DualBuffering;
-      verticalLayout = _psxData.VerticalBuffering;
-      prohibitedAreas = _psxData.ProhibitedAreas;
 
             _exporters = FindObjectsByType<PSXObjectExporter>(FindObjectsSortMode.None);
             foreach (PSXObjectExporter exp in _exporters)
@@ -43,10 +40,7 @@ namespace SplashEdit.RuntimeCode
 
         void PackTextures()
         {
-
+            (Rect buffer1, Rect buffer2) = Utils.BufferForResolution(selectedResolution, verticalLayout);
-      Rect buffer1 = new Rect(0, 0, selectedResolution.x, selectedResolution.y);
-      Rect buffer2 = verticalLayout ? new Rect(0, 256, selectedResolution.x, selectedResolution.y)
-                                    : new Rect(selectedResolution.x, 0, selectedResolution.x, selectedResolution.y);
 
             List<Rect> framebuffers = new List<Rect> { buffer1 };
             if (dualBuffering)
@@ -176,53 +170,51 @@ namespace SplashEdit.RuntimeCode
 
                     totalFaces += exporter.Mesh.Triangles.Count;
 
-
+                    void writeVertexPosition(PSXVertex v)
+                    {
+                        writer.Write((short)v.vx);
+                        writer.Write((short)v.vy);
+                        writer.Write((short)v.vz);
+                    }
+                    void writeVertexNormals(PSXVertex v)
+                    {
+                        writer.Write((short)v.nx);
+                        writer.Write((short)v.ny);
+                        writer.Write((short)v.nz);
+                    }
+                    void writeVertexColor(PSXVertex v)
+                    {
+                        writer.Write((byte)v.r);
+                        writer.Write((byte)v.g);
+                        writer.Write((byte)v.b);
+                        writer.Write((byte)0); // padding
+                    }
+                    void writeVertexUV(PSXVertex v, PSXTexture2D t ,int expander)
+                    {
+                        writer.Write((byte)(v.u + t.PackingX * expander));
+                        writer.Write((byte)(v.v + t.PackingY));
+                    }
+                    void foreachVertexDo(Tri tri, Action<PSXVertex> action)
+                    {
+                        for (int i = 0; i < tri.Vertexes.Length; i++)
+                        {
+                            action(tri.Vertexes[i]);
+                        }
+                    }
                     foreach (Tri tri in exporter.Mesh.Triangles)
                     {
                         int expander = 16 / ((int)tri.Texture.BitDepth);
                         // Write vertices coordinates
-            writer.Write((short)tri.v0.vx);
+                        foreachVertexDo(tri, (v) => writeVertexPosition(v));
-            writer.Write((short)tri.v0.vy);
-            writer.Write((short)tri.v0.vz);
-
-            writer.Write((short)tri.v1.vx);
-            writer.Write((short)tri.v1.vy);
-            writer.Write((short)tri.v1.vz);
-
-            writer.Write((short)tri.v2.vx);
-            writer.Write((short)tri.v2.vy);
-            writer.Write((short)tri.v2.vz);
 
                         // Write vertex normals for v0 only
-            writer.Write((short)tri.v0.nx);
+                        writeVertexNormals(tri.v0);
-            writer.Write((short)tri.v0.ny);
-            writer.Write((short)tri.v0.nz);
 
                         // Write vertex colors with padding
-            writer.Write((byte)tri.v0.r);
+                        foreachVertexDo(tri, (v) => writeVertexColor(v));
-            writer.Write((byte)tri.v0.g);
-            writer.Write((byte)tri.v0.b);
-            writer.Write((byte)0); // padding
-
-            writer.Write((byte)tri.v1.r);
-            writer.Write((byte)tri.v1.g);
-            writer.Write((byte)tri.v1.b);
-            writer.Write((byte)0); // padding
-
-            writer.Write((byte)tri.v2.r);
-            writer.Write((byte)tri.v2.g);
-            writer.Write((byte)tri.v2.b);
-            writer.Write((byte)0); // padding
 
                         // Write UVs for each vertex, adjusting for texture packing
-            writer.Write((byte)(tri.v0.u + tri.Texture.PackingX * expander));
+                        foreachVertexDo(tri, (v) => writeVertexUV(v, tri.Texture, expander));
-            writer.Write((byte)(tri.v0.v + tri.Texture.PackingY));
-
-            writer.Write((byte)(tri.v1.u + tri.Texture.PackingX * expander));
-            writer.Write((byte)(tri.v1.v + tri.Texture.PackingY));
-
-            writer.Write((byte)(tri.v2.u + tri.Texture.PackingX * expander));
-            writer.Write((byte)(tri.v2.v + tri.Texture.PackingY));
 
                         writer.Write((ushort)0); // padding
 
@@ -230,18 +222,7 @@ namespace SplashEdit.RuntimeCode
                         TPageAttr tpage = new TPageAttr();
                         tpage.SetPageX(tri.Texture.TexpageX);
                         tpage.SetPageY(tri.Texture.TexpageY);
-            switch (tri.Texture.BitDepth)
+                        tpage.Set(tri.Texture.BitDepth.ToColorMode());
-            {
-              case PSXBPP.TEX_4BIT:
-                tpage.Set(TPageAttr.ColorMode.Mode4Bit);
-                break;
-              case PSXBPP.TEX_8BIT:
-                tpage.Set(TPageAttr.ColorMode.Mode8Bit);
-                break;
-              case PSXBPP.TEX_16BIT:
-                tpage.Set(TPageAttr.ColorMode.Mode16Bit);
-                break;
-            }
                         tpage.SetDithering(true);
                         writer.Write((ushort)tpage.info);
                         writer.Write((ushort)tri.Texture.ClutPackingX);

Runtime/PSXTexture2D.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using UnityEngine;
 
@@ -275,5 +276,15 @@ namespace SplashEdit.RuntimeCode
             return vramTexture;
 
         }
+        /// <summary>
+        /// Check if we need to update stored texture
+        /// </summary>
+        /// <param name="bitDepth">new settings for color bit depth</param>
+        /// <param name="texture">new texture</param>
+        /// <returns>return true if sored texture is different from a new one</returns>
+        internal bool NeedUpdate(PSXBPP bitDepth, Texture2D texture)
+        {
+            return BitDepth != bitDepth || texture.GetInstanceID() != texture.GetInstanceID();
+        }
     }
 }

Runtime/TexturePacker.cs

@@ -30,8 +30,8 @@ namespace SplashEdit.RuntimeCode
         private List<TextureAtlas> _finalizedAtlases = new List<TextureAtlas>(); // Atlases that have been successfully placed.
         private List<Rect> _allocatedCLUTs = new List<Rect>();                     // Allocated regions for CLUTs.
 
-        private const int VRAM_WIDTH = 1024;
+        public static readonly int VramWidth = 1024;
-        private const int VRAM_HEIGHT = 512;
+        public static readonly int VramHeight = 512;
 
         private VRAMPixel[,] _vramPixels;              // Simulated VRAM pixel data.
 
@@ -54,7 +54,7 @@ namespace SplashEdit.RuntimeCode
             _reservedAreas.Add(framebuffers[0]);
             _reservedAreas.Add(framebuffers[1]);
 
-            _vramPixels = new VRAMPixel[VRAM_WIDTH, VRAM_HEIGHT];
+            _vramPixels = new VRAMPixel[VramWidth, VramHeight];
         }
 
         /// <summary>
@@ -101,9 +101,8 @@ namespace SplashEdit.RuntimeCode
                 // Process each texture in descending order of area.
                 foreach (var texture in group.OrderByDescending(tex => tex.QuantizedWidth * tex.Height))
                 {
-                    // Check for duplicates in the entire set.
+                    // Remove duplicate textures
-                    if (uniqueTextures.Any(tex => tex.OriginalTexture.GetInstanceID() == texture.OriginalTexture.GetInstanceID() &&
+                    if (uniqueTextures.Any(tex => tex.OriginalTexture.GetInstanceID() == texture.OriginalTexture.GetInstanceID() && tex.BitDepth == texture.BitDepth))
-                                                  tex.BitDepth == texture.BitDepth))
                     {
                         // Skip packing this texture – it will be replaced later.
                         continue;
@@ -190,10 +189,10 @@ namespace SplashEdit.RuntimeCode
                 {
                     bool placed = false;
                     // Try every possible row (stepping by atlas height).
-                    for (int y = 0; y <= VRAM_HEIGHT - TextureAtlas.Height; y += 256)
+                    for (int y = 0; y <= VramHeight - TextureAtlas.Height; y += 256)
                     {
                         // Try every possible column (stepping by 64 pixels).
-                        for (int x = 0; x <= VRAM_WIDTH - atlas.Width; x += 64)
+                        for (int x = 0; x <= VramWidth - atlas.Width; x += 64)
                         {
                             // Only consider atlases that haven't been placed yet.
                             if (atlas.PositionX == 0 && atlas.PositionY == 0)
@@ -247,9 +246,9 @@ namespace SplashEdit.RuntimeCode
                 bool placed = false;
 
                 // Iterate over possible CLUT positions in VRAM.
-                for (ushort x = 0; x < VRAM_WIDTH; x += 16)
+                for (ushort x = 0; x < VramWidth; x += 16)
                 {
-                    for (ushort y = 0; y <= VRAM_HEIGHT; y++)
+                    for (ushort y = 0; y <= VramHeight; y++)
                     {
                         var candidate = new Rect(x, y, clutWidth, clutHeight);
                         if (IsPlacementValid(candidate))
@@ -313,8 +312,8 @@ namespace SplashEdit.RuntimeCode
         private bool IsPlacementValid(Rect rect)
         {
             // Ensure the rectangle fits within VRAM boundaries.
-            if (rect.x + rect.width > VRAM_WIDTH) return false;
+            if (rect.x + rect.width > VramWidth) return false;
-            if (rect.y + rect.height > VRAM_HEIGHT) return false;
+            if (rect.y + rect.height > VramHeight) return false;
 
             // Check for overlaps with existing atlases.
             bool overlapsAtlas = _finalizedAtlases.Any(a => new Rect(a.PositionX, a.PositionY, a.Width, TextureAtlas.Height).Overlaps(rect));

Runtime/Utils.cs

@@ -1,5 +1,7 @@
 using System.Runtime.InteropServices;
 using UnityEditor;
+using System.Collections.Generic;
+using UnityEditor;
 using UnityEngine;
 
 namespace SplashEdit.RuntimeCode
@@ -8,6 +10,26 @@ namespace SplashEdit.RuntimeCode
     public static class DataStorage
     {
         private static readonly string psxDataPath = "Assets/PSXData.asset";
+
+        /// <summary>
+        /// Loads stored PSX data from the asset.
+        /// </summary>
+        public static PSXData LoadData(out Vector2 selectedResolution, out bool dualBuffering, out bool verticalLayout, out List<ProhibitedArea> prohibitedAreas)
+        {
+            var _psxData = AssetDatabase.LoadAssetAtPath<PSXData>(psxDataPath);
+            if (!_psxData)
+            {
+                _psxData = ScriptableObject.CreateInstance<PSXData>();
+                AssetDatabase.CreateAsset(_psxData, psxDataPath);
+                AssetDatabase.SaveAssets();
+            }
+
+            selectedResolution = _psxData.OutputResolution;
+            dualBuffering = _psxData.DualBuffering;
+            verticalLayout = _psxData.VerticalBuffering;
+            prohibitedAreas = _psxData.ProhibitedAreas;
+            return _psxData;
+        }
         public static PSXData LoadData()
         {
             PSXData psxData = AssetDatabase.LoadAssetAtPath<PSXData>(psxDataPath);
@@ -282,5 +304,35 @@ namespace SplashEdit.RuntimeCode
             Mode16Bit = 2
         }
     }
+
+
+    public static class Utils
+    {
+        public static (Rect, Rect) BufferForResolution(Vector2 selectedResolution, bool verticalLayout, Vector2 offset = default)
+        {
+            if (offset == default)
+            {
+                offset = Vector2.zero;
+            }
+            Rect buffer1 = new Rect(offset.x, offset.y, selectedResolution.x, selectedResolution.y);
+            Rect buffer2 = verticalLayout ? new Rect(offset.x, 256, selectedResolution.x, selectedResolution.y)
+                                          : new Rect(offset.x + selectedResolution.x, offset.y, selectedResolution.x, selectedResolution.y);
+            return (buffer1, buffer2);
+        }
+
+        public static TPageAttr.ColorMode ToColorMode(this PSXBPP depth)
+        {
+            return depth switch
+            {
+                PSXBPP.TEX_4BIT => TPageAttr.ColorMode.Mode4Bit,
+                PSXBPP.TEX_8BIT => TPageAttr.ColorMode.Mode8Bit,
+                PSXBPP.TEX_16BIT => TPageAttr.ColorMode.Mode16Bit,
+                _ => throw new System.NotImplementedException(),
+            };
+        }
+
+
+        public static byte Clamp0255(float v) => (byte)(Mathf.Clamp(v, 0, 255));
+    }
 }