public Shader(VertexShader vertexProgram, FragmentShader fragmentProgram) : this()
{
Attach(vertexProgram);
Attach(fragmentProgram);
Link();
}
public static ShaderObject Load(DomNode node, string fileName)
{
int[] intVal = new int[4];
float[] floatVal = new float[4];
string[] splitValue;
string shaderTypeString = null;
ShaderObject obj = null;
Version ver, maxVer = Shader.VersionSupported;
Version bestVersion = null;
DomNode bestNode = null;
List <ShaderAutoUniformInfo> StaticAutoUniforms = null;
List <ShaderAutoUniformInfo> DynamicAutoUniforms = null;
string code = null;
foreach (DomAttribute attr in node.Attributes)
{
switch (attr.Name.ToLower())
{
case "src": return(Load(attr.Value.ToPath()));
case "relsrc": return(Load(attr.Value.RelativeTo(fileName)));
case "type": shaderTypeString = attr.Value.ToLower(); break;
}
}
foreach (DomNode child in node)
{
if (child.Name.ToLower().Equals("content"))
{
if (!Version.TryParse(child["version"], out ver))
{
ver = new Version("0.0");
}
if ((bestVersion == null || bestVersion < ver) && ver <= maxVer)
{
bestNode = child;
bestVersion = ver;
}
}
}
if (bestNode == null)
{
return(null);
}
foreach (DomNode child in bestNode)
{
switch (child.Name.ToLower())
{
case "code":
code = child.Value;
break;
case "uniform":
ShaderAutoUniformInfo aui = new ShaderAutoUniformInfo(null, ShaderAutoUniformClass.Unknown, null);
bool typePresent = false;
foreach (DomAttribute attr in child.Attributes)
{
switch (attr.Name)
{
case "name":
aui.Name = attr.Value;
break;
case "type":
typePresent = true;
if (attr.Value.ToLower() == "unknown" || !ShaderAutoUniformClass.TryParse(attr.Value, true, out aui.Type))
{
aui.Type = ShaderAutoUniformClass.Unknown;
// This is not a critical error, but it will affect how shader will work during render process so we have to log this minor error
GameDebugger.Log(LogLevel.Error, "Shader object '{0}' has an auto uniform with an unexpected type of '{1}'", fileName, attr.Value);
}
break;
case "value":
aui.Value = attr.Value;
break;
}
}
if (!typePresent || aui.Name == null || aui.Name.Equals(""))
{
GameDebugger.Log(LogLevel.Error, "Shader object '{0}' has an auto uniform '{1}' that does not have all required attributes", fileName, aui.Name);
}
else if (aui.Type != ShaderAutoUniformClass.Unknown)
{
if (aui.Value == null)
{
if (aui.Type == ShaderAutoUniformClass.GameTime || aui.Type == ShaderAutoUniformClass.NonStopTime)
{
aui.Value = "1";
}
else
{
GameDebugger.Log(LogLevel.Error, "Shader object '{0}' has an auto uniform '{1}' that has no value set", fileName, aui.Name);
}
}
bool result = false;
if (aui.Value != null)
{
switch (aui.Type)
{
case ShaderAutoUniformClass.Int:
if (result = int.TryParse((string)aui.Value, out intVal[0]))
{
aui.Value = intVal[0];
}
break;
case ShaderAutoUniformClass.Float:
if (result = float.TryParse((string)aui.Value, out floatVal[0]))
{
aui.Value = floatVal[0];
}
break;
case ShaderAutoUniformClass.Vec2:
splitValue = ((string)aui.Value).Split(',');
if (splitValue.Length != 2)
{
GameDebugger.Log(LogLevel.Error, "Shader object '{0}' has an auto uniform '{1}' with an invalid value for '{2}' type", fileName, aui.Name, aui.Type);
}
else
{
if (result = float.TryParse(splitValue[0], out floatVal[0]))
{
if (result = float.TryParse(splitValue[1], out floatVal[1]))
{
aui.Value = new Vector2(floatVal[0], floatVal[1]);
}
}
}
break;
case ShaderAutoUniformClass.Vec3:
splitValue = ((string)aui.Value).Split(',');
if (splitValue.Length != 3)
{
GameDebugger.Log(LogLevel.Error, "Shader object '{0}' has an auto uniform '{1}' with an invalid value for '{2}' type", fileName, aui.Name, aui.Type);
}
else
{
if (result = float.TryParse(splitValue[0], out floatVal[0]))
{
if (result = float.TryParse(splitValue[1], out floatVal[1]))
{
if (result = float.TryParse(splitValue[2], out floatVal[2]))
{
aui.Value = new Vector3(floatVal[0], floatVal[1], floatVal[2]);
}
}
}
}
break;
case ShaderAutoUniformClass.Vec4:
splitValue = ((string)aui.Value).Split(',');
if (splitValue.Length != 4)
{
GameDebugger.Log(LogLevel.Error, "Shader object '{0}' has an auto uniform '{1}' with an invalid value for '{2}' type", fileName, aui.Name, aui.Type);
}
else
{
if (result = float.TryParse(splitValue[0], out floatVal[0]))
{
if (result = float.TryParse(splitValue[1], out floatVal[1]))
{
if (result = float.TryParse(splitValue[2], out floatVal[2]))
{
if (result = float.TryParse(splitValue[3], out floatVal[3]))
{
aui.Value = new Vector4(floatVal[0], floatVal[1], floatVal[2], floatVal[3]);
}
}
}
}
}
break;
case ShaderAutoUniformClass.Point2:
splitValue = ((string)aui.Value).Split(',');
if (splitValue.Length != 2)
{
GameDebugger.Log(LogLevel.Error, "Shader object '{0}' has an auto uniform '{1}' with an invalid value for '{2}' type", fileName, aui.Name, aui.Type);
}
else
{
if (result = int.TryParse(splitValue[0], out intVal[0]))
{
if (result = int.TryParse(splitValue[1], out intVal[1]))
{
aui.Value = new Point2(intVal[0], intVal[1]);
}
}
}
break;
case ShaderAutoUniformClass.Point3:
splitValue = ((string)aui.Value).Split(',');
if (splitValue.Length != 3)
{
GameDebugger.Log(LogLevel.Error, "Shader object '{0}' has an auto uniform '{1}' with an invalid value for '{2}' type", fileName, aui.Name, aui.Type);
}
else
{
if (result = int.TryParse(splitValue[0], out intVal[0]))
{
if (result = int.TryParse(splitValue[1], out intVal[1]))
{
if (result = int.TryParse(splitValue[2], out intVal[2]))
{
aui.Value = new Point3(intVal[0], intVal[1], intVal[2]);
}
}
}
}
break;
case ShaderAutoUniformClass.Point4:
splitValue = ((string)aui.Value).Split(',');
if (splitValue.Length != 4)
{
GameDebugger.Log(LogLevel.Error, "Shader object '{0}' has an auto uniform '{1}' with an invalid value for '{2}' type", fileName, aui.Name, aui.Type);
}
else
{
if (result = int.TryParse(splitValue[0], out intVal[0]))
{
if (result = int.TryParse(splitValue[1], out intVal[1]))
{
if (result = int.TryParse(splitValue[2], out intVal[2]))
{
if (result = int.TryParse(splitValue[3], out intVal[3]))
{
aui.Value = new Point4(intVal[0], intVal[1], intVal[2], intVal[3]);
}
}
}
}
}
break;
case ShaderAutoUniformClass.Color4:
splitValue = ((string)aui.Value).Split(',');
if (splitValue.Length != 4)
{
GameDebugger.Log(LogLevel.Error, "Shader object '{0}' has an auto uniform '{1}' with an invalid value for '{2}' type", fileName, aui.Name, aui.Type);
}
else
{
if (result = float.TryParse(splitValue[0], out floatVal[0]))
{
if (result = float.TryParse(splitValue[1], out floatVal[1]))
{
if (result = float.TryParse(splitValue[2], out floatVal[2]))
{
if (result = float.TryParse(splitValue[3], out floatVal[3]))
{
aui.Value = new Color4(floatVal[0], floatVal[1], floatVal[2], floatVal[3]);
}
}
}
}
}
break;
case ShaderAutoUniformClass.Sampler1D:
if (result = int.TryParse((string)aui.Value, out intVal[0]))
{
aui.Value = intVal[0];
}
break;
case ShaderAutoUniformClass.Sampler2D:
if (result = int.TryParse((string)aui.Value, out intVal[0]))
{
aui.Value = intVal[0];
}
break;
case ShaderAutoUniformClass.Sampler3D:
if (result = int.TryParse((string)aui.Value, out intVal[0]))
{
aui.Value = intVal[0];
}
break;
case ShaderAutoUniformClass.Sampler4D:
if (result = int.TryParse((string)aui.Value, out intVal[0]))
{
aui.Value = intVal[0];
}
break;
case ShaderAutoUniformClass.NonStopTime:
if (result = float.TryParse((string)aui.Value, out floatVal[0]))
{
aui.Value = floatVal[0];
}
break;
case ShaderAutoUniformClass.GameTime:
if (result = float.TryParse((string)aui.Value, out floatVal[0]))
{
aui.Value = floatVal[0];
}
break;
default:
GameDebugger.Log(LogLevel.Error, "Shader object '{0}' has an auto uniform '{1}' with a type that is not fully implemented yet (no parser for the value)", fileName, aui.Name);
break;
}
}
if (result)
{
if (aui.Type == ShaderAutoUniformClass.GameTime || aui.Type == ShaderAutoUniformClass.NonStopTime)
{
if (DynamicAutoUniforms == null)
{
DynamicAutoUniforms = new List <ShaderAutoUniformInfo>();
}
DynamicAutoUniforms.Add(aui);
}
else
{
if (StaticAutoUniforms == null)
{
StaticAutoUniforms = new List <ShaderAutoUniformInfo>();
}
StaticAutoUniforms.Add(aui);
}
}
else
{
GameDebugger.Log(LogLevel.Error, "Shader object '{0}' has an auto uniform '{1}' with an invalid value", fileName, aui.Name);
}
}
break;
}
}
if (code == null)
{
return(null);
}
switch (shaderTypeString)
{
case "vertex": obj = new VertexShader(); break;
case "fragment": obj = new FragmentShader(); break;
default: throw new UserFriendlyException(String.Format("Shader node in '{1}' has a type attribute with an unrecognizable value '{0}' while only 'vertex' and 'fragment' are supported.", shaderTypeString, fileName), "There was an error in one of shader definition files.");
}
obj.m_Version = bestVersion;
obj.SetSource(code);
obj.Compile();
obj.StaticAutoUniforms = StaticAutoUniforms;
obj.DynamicAutoUniforms = DynamicAutoUniforms;
return(obj);
}
