some collada work, and an unfinished OGL renderer using OpenTK. huge commit

1 files changed, 235 insertions, 0 deletions

diff --git a/NW4RTools/Models/OpenGL/GLModel.cs b/NW4RTools/Models/OpenGL/GLModel.cs
new file mode 100644
index 0000000..2e5779e
--- /dev/null
+++ b/NW4RTools/Models/OpenGL/GLModel.cs
@@ -0,0 +1,235 @@
+using System;
+using System.Collections.Generic;
+using NW4RTools;
+using NW4RTools.Models;
+using OpenTK;
+using OpenTK.Graphics;
+using OpenTK.Graphics.OpenGL;
+
+namespace NW4RTools.Models.OpenGL {
+	public class GLModel {
+		public ResFile SourceFile {
+			get; private set;
+		}
+
+		public Model SourceModel {
+			get; private set;
+		}
+
+		public GLModel(ResFile rf, string modelName) {
+			SourceFile = rf;
+			SourceModel = rf.GetGroup<Model>("3DModels(NW4R)")[modelName];
+
+			// cache some stuff
+			m_textureGroup = rf.GetGroup<Texture>("Textures(NW4R)");
+		}
+
+
+
+
+		private ResDict<Texture> m_textureGroup;
+		private Dictionary<string, GLTexture> m_glTextures;
+		private Dictionary<Material, GLDisplayList> m_glMaterials;
+		private Dictionary<Shape, GLDisplayList> m_glShapes;
+
+		public void Prepare(IGraphicsContext context) {
+			// convert every texture
+			m_glTextures = new Dictionary<string, GLTexture>();
+
+			foreach (var material in SourceModel.Materials) {
+				foreach (var texInfo in material.Value.TextureInfos) {
+					if (!m_glTextures.ContainsKey(texInfo.TextureName)) {
+						var newTex = new GLTexture();
+						newTex.Load(m_textureGroup[texInfo.TextureName]);
+						m_glTextures.Add(texInfo.TextureName, newTex);
+					}
+				}
+			}
+
+			// convert every material
+			m_glMaterials = new Dictionary<Material, GLDisplayList>();
+
+			foreach (var material in SourceModel.Materials.Values) {
+				m_glMaterials.Add(material, MakeMaterialDisplayList(material));
+			}
+
+			// convert every shape
+			m_glShapes = new Dictionary<Shape, GLDisplayList>();
+
+			foreach (var shape in SourceModel.Shapes.Values) {
+				m_glShapes.Add(shape, MakeShapeDisplayList(shape));
+			}
+		}
+
+
+
+		private static readonly TextureUnit[] TextureUnits = new TextureUnit[] {
+			TextureUnit.Texture0, TextureUnit.Texture1, TextureUnit.Texture2, TextureUnit.Texture3,
+			TextureUnit.Texture4, TextureUnit.Texture5, TextureUnit.Texture6, TextureUnit.Texture7,
+			TextureUnit.Texture8, TextureUnit.Texture9, TextureUnit.Texture10, TextureUnit.Texture11,
+			TextureUnit.Texture12, TextureUnit.Texture13, TextureUnit.Texture14, TextureUnit.Texture15
+		};
+
+		private Material m_currentMaterial;
+
+		private void ClearCache() {
+			m_currentMaterial = null;
+		}
+
+		private void LoadMaterial(Material m) {
+			if (m == m_currentMaterial)
+				return;
+
+			m_currentMaterial = m;
+			m_glMaterials[m].Execute();
+		}
+
+		private void DrawShape(ByteCode.DrawShapeInstruction insn) {
+			LoadMaterial(SourceModel.Materials[insn.MaterialID]);
+
+			var shape = SourceModel.Shapes[insn.ShapeID];
+			m_glShapes[shape].Execute();
+		}
+
+		public void Render(IGraphicsContext context) {
+			// This'll be fun.
+
+			ClearCache();
+			
+			foreach (var insn in SourceModel.Bytecode["DrawOpa"].Instructions) {
+				if (insn is ByteCode.DrawShapeInstruction) {
+					DrawShape(insn as ByteCode.DrawShapeInstruction);
+				}
+			}
+
+			if (SourceModel.Bytecode.ContainsKey("DrawXlu")) {
+				foreach (var insn in SourceModel.Bytecode["DrawXlu"].Instructions) {
+					if (insn is ByteCode.DrawShapeInstruction) {
+						DrawShape(insn as ByteCode.DrawShapeInstruction);
+					}
+				}
+			}
+		}
+
+
+
+		#region Display Lists
+		private GLDisplayList MakeMaterialDisplayList(Material m) {
+			var displayList = new GLDisplayList();
+			displayList.Begin();
+			
+			if (m.TextureInfos.Count > 0) {
+				GL.Enable(EnableCap.Texture2D);
+				
+				TextureInfo[] texInfoArray = new TextureInfo[8];
+				
+				foreach (var texInfo in m.TextureInfos) {
+					texInfoArray[texInfo.TexMapID] = texInfo;
+				}
+				
+				for (int i = 0; i < 8; i++) {
+					GL.ActiveTexture(TextureUnits[i]);
+					GL.TexEnv(TextureEnvTarget.TextureEnv, TextureEnvParameter.TextureEnvMode, (int)TextureEnvMode.Decal);
+					
+					if (texInfoArray[i] == null) {
+						GL.BindTexture(TextureTarget.Texture2D, 0);
+					} else {
+						m_glTextures[texInfoArray[i].TextureName].Bind(TextureTarget.Texture2D);
+					}
+				}
+				
+			} else {
+				GL.Disable(EnableCap.Texture2D);
+			}
+			
+			displayList.End();
+			return displayList;
+		}
+
+		private GLDisplayList MakeShapeDisplayList(Shape shape) {
+			var displayList = new GLDisplayList();
+			displayList.Begin();
+			
+			var firstDL = new InputStream(shape.DisplayList1);
+			firstDL.Seek(0x0C);
+			UInt32 vtxDesc1 = firstDL.ReadUInt32();
+			firstDL.Seek(0x12);
+			UInt32 vtxDesc2 = firstDL.ReadUInt32();
+			firstDL.Seek(0x22);
+			UInt32 vtxAttr1 = firstDL.ReadUInt32();
+			firstDL.Seek(0x28);
+			UInt32 vtxAttr2 = firstDL.ReadUInt32();
+			firstDL.Seek(0x2E);
+			UInt32 vtxAttr3 = firstDL.ReadUInt32();
+			
+			var vs = new VertexSettings();
+			vs.SetDesc(vtxDesc1, vtxDesc2);
+			vs.SetAttrFmt(vtxAttr1, vtxAttr2, vtxAttr3);
+			
+			
+			InputStream dl = new InputStream(shape.DisplayList2);
+			
+			while (true) {
+				if (dl.AtEnd)
+					break;
+				
+				byte cmd = dl.ReadByte();
+				if (cmd == 0)
+					break;
+				
+				PrimitiveType prim = (PrimitiveType)((cmd >> 3) & 7);
+				int vtxCount = dl.ReadUInt16();
+				
+				// first, parse it into a list of vertices
+				GXIndexedVertex[] vtxs = new GXIndexedVertex[vtxCount];
+				for (int i = 0; i < vtxCount; i++) {
+					vtxs[i].LoadFrom(dl, vs);
+				}
+				
+				switch (prim) {
+				case PrimitiveType.Quads:
+					GL.Begin(BeginMode.Quads);
+					break;
+				case PrimitiveType.Triangles:
+					GL.Begin(BeginMode.Triangles);
+					break;
+				case PrimitiveType.TriangleStrip:
+					GL.Begin(BeginMode.TriangleStrip);
+					break;
+				case PrimitiveType.TriangleFan:
+					GL.Begin(BeginMode.TriangleFan);
+					break;
+				case PrimitiveType.Lines:
+					GL.Begin(BeginMode.Lines);
+					break;
+				case PrimitiveType.LineStrip:
+					GL.Begin(BeginMode.LineStrip);
+					break;
+				case PrimitiveType.Points:
+					GL.Begin(BeginMode.Points);
+					break;
+				default:
+					Console.WriteLine("UNIMPLEMENTED PRIMITIVE TYPE {0}", prim);
+					throw new NotImplementedException();
+				}
+				
+				for (int i = 0; i < vtxCount; i++) {
+					for (int j = 0; j < 8; j++) {
+						if (vs.TexCoordDesc[j] != VertexSettings.DescType.None)
+							GL.MultiTexCoord2(TextureUnits[j], shape.TexCoordData[j].Data[vtxs[i].TexCoords[j]]);
+					}
+					
+					GL.Vertex3(shape.PosData.Data[vtxs[i].Position]);
+				}
+				
+				GL.End();
+			}
+			
+			displayList.End();
+			return displayList;
+		}
+
+		#endregion
+	}
+}
+