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6502bench/SourceGen/SGTestData/Visualization/VisWireframeTest.cs

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/*
* Copyright 2020 faddenSoft
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Collections.ObjectModel;
using PluginCommon;
namespace WireframeTest {
/// <summary>
/// Visualizer for wireframe test data.
/// </remarks>
public class VisWireframeTest : MarshalByRefObject, IPlugin, IPlugin_Visualizer_v2 {
// IPlugin
public string Identifier {
get { return "Wireframe Test Data Visualizer"; }
}
private IApplication mAppRef;
private byte[] mFileData;
// Visualization identifiers; DO NOT change or projects that use them will break.
private const string VIS_GEN_WF_TEST = "wireframe-test";
private const string P_OFFSET = "offset";
// Visualization descriptors.
private VisDescr[] mDescriptors = new VisDescr[] {
new VisDescr(VIS_GEN_WF_TEST, "Wireframe Test Data", VisDescr.VisType.Wireframe,
new VisParamDescr[] {
new VisParamDescr("File offset (hex)",
P_OFFSET, typeof(int), 0, 0x00ffffff, VisParamDescr.SpecialMode.Offset, 0),
// These are interpreted by the main app.
VisWireframe.Param_IsPerspective("Perspective projection", true),
VisWireframe.Param_IsBfcEnabled("Backface culling", true),
}),
};
// IPlugin
public void Prepare(IApplication appRef, byte[] fileData, AddressTranslate addrTrans) {
mAppRef = appRef;
mFileData = fileData;
}
// IPlugin
public void Unprepare() {
mAppRef = null;
mFileData = null;
}
// IPlugin_Visualizer
public VisDescr[] GetVisGenDescrs() {
if (mFileData == null) {
return null;
}
return mDescriptors;
}
// IPlugin_Visualizer
public IVisualization2d Generate2d(VisDescr descr,
ReadOnlyDictionary<string, object> parms) {
mAppRef.ReportError("2d not supported");
return null;
}
// IPlugin_Visualizer_v2
public IVisualizationWireframe GenerateWireframe(VisDescr descr,
ReadOnlyDictionary<string, object> parms) {
switch (descr.Ident) {
case VIS_GEN_WF_TEST:
return GenerateWireframe(parms);
default:
mAppRef.ReportError("Unknown ident " + descr.Ident);
return null;
}
}
private IVisualizationWireframe GenerateWireframe(ReadOnlyDictionary<string, object> parms) {
int offset = Util.GetFromObjDict(parms, P_OFFSET, 0);
if (offset < 0 || offset >= mFileData.Length) {
// should be caught by editor
mAppRef.ReportError("Invalid parameter");
return null;
}
VisWireframe vw = new VisWireframe();
const sbyte END_MARKER = -128; // 0x80
try {
while (true) {
int vx = (sbyte)mFileData[offset++];
if (vx == END_MARKER) {
break;
}
int vy = (sbyte)mFileData[offset++];
int vz = (sbyte)mFileData[offset++];
vw.AddVertex(vx, vy, vz);
}
while (true) {
int v0 = (sbyte)mFileData[offset++];
if (v0 == END_MARKER) {
break;
}
int v1 = mFileData[offset++];
int f0 = mFileData[offset++];
int f1 = mFileData[offset++];
int edge = vw.AddEdge(v0, v1);
vw.AddEdgeFace(edge, f0);
if (f1 != f0) {
vw.AddEdgeFace(edge, f1);
}
}
while (true) {
int nx = (sbyte)mFileData[offset++];
if (nx == END_MARKER) {
break;
}
int ny = (sbyte)mFileData[offset++];
int nz = (sbyte)mFileData[offset++];
vw.AddFaceNormal(nx, ny, nz);
}
} catch (IndexOutOfRangeException) {
// assume it was our file data access that caused the failure
mAppRef.ReportError("Ran off end of file");
return null;
}
string msg;
if (!vw.Validate(out msg)) {
mAppRef.ReportError("Data error: " + msg);
return null;
}
return vw;
}
}
}