void Load()
{
ShaderProgramHandle = GL.CreateProgram(); MyGL.Check();
var builder = new ShaderBuilder(file.FileSystem);
var success = true;
builder.LoadAndParse(file);
if (builder.buildResults.Count == 0)
{
Log.Error("no shader parts were found, possible part markers are: " + Enum.GetNames(typeof(ShaderType)).Select(s => "[" + s + "]").Join(" "));
}
foreach (var r in builder.buildResults)
{
success &= AttachShader(builder, r.shaderContents, r.shaderType, r.filePath);
}
FinalizeInit();
if (success)
{
Log.Info(typeof(Shader) + " " + file + " loaded successfully");
LoadState = State.LoadedSuccess;
VersionOnGpu = VersionInFile;
}
else
{
LoadState = State.LoadedError;
Log.Error("fix the error then press any key to reload ...");
Console.ReadKey();
Log.Error("reloading ...");
Load();
return;
}
file.OnFileChanged(NotifyFileChanged);
builder.includedFiles.ForEach(f => f.OnFileChanged(NotifyFileChanged));
Uniforms.MarkAllUniformsAsChanged();
cachedUniformLocations.Clear();
}
bool AttachShader(ShaderBuilder builder, string source, ShaderType type, string resource)
{
if (type == ShaderType.TessControlShader)
{
HasTesselation = true;
}
//source = source.Replace(maxNumberOfLights_name, maxNumberOfLights.ToString());
int handle = GL.CreateShader(type); MyGL.Check();
GL.ShaderSource(handle, source); MyGL.Check();
GL.CompileShader(handle); MyGL.Check();
string logInfo;
GL.GetShaderInfoLog(handle, out logInfo); MyGL.Check();
if (logInfo.Length > 0)
{
Log.Error($"Error occured during compilation of {type} from '{resource}'");
Log.Error(logInfo);
try
{
var lines = logInfo.Split('\n');
for (int i = 0; i < lines.Length; i++)
{
var line = lines[i];
if (line.Contains("(") && line.Contains(")"))
{
var fileIdAndLineNumber = line.TakeStringBefore(")");
var fileId = fileIdAndLineNumber.TakeStringBefore("(");
var lineNumber = fileIdAndLineNumber.TakeStringAfter("(");
var fileName = builder.includedFiles[int.Parse(fileId, CultureInfo.InvariantCulture)];
line = line.Replace(fileIdAndLineNumber, fileName + "(" + lineNumber);
lines[i] = line;
}
}
logInfo = lines.Join('\n');
Log.Error("niceifed:");
Log.Error(logInfo);
}
catch (Exception e)
{
Log.Error("failed to niceify error:" + e);
}
return(false);
}
int statusCode = 0;
GL.GetShader(handle, ShaderParameter.CompileStatus, out statusCode); MyGL.Check();
if (statusCode != 1)
{
var error = GL.GetShaderInfoLog(handle); MyGL.Check();
//Log.Error(type.ToString() + " :: " + source + "\n" + error + "\n in file: " + resource);
return(false);
}
GL.AttachShader(ShaderProgramHandle, handle); MyGL.Check();
return(true);
}