private void ReadShader(Effect effect, XElement child, bool isHLSL)
{
Effect.Shader shader = new Effect.Shader();
shader.isHLSL = isHLSL;
if (!isHLSL)
{
shader.isVertex = ((string)child.Attribute("type") == "vertex");
}
else
{
shader.target = (string)child.Attribute("target");
shader.entry = (string)child.Attribute("entry");
shader.isVertex = (shader.target[0] == 'v');
}
shader.generate = (string)child.Attribute("generate");
if (shader.generate == null)
{
shader.generate = "";
}
string filename = mgr.MakeAbsolute((string)child.Attribute("filename"), parent.filename);
if (filename != null)
{
if (!File.Exists(filename))
{
mgr.Error("failed to load shader: " + filename);
}
else
{
shader.source = File.ReadAllText(filename);
}
}
for (var item = child.FirstNode; item != null; item = item.NextNode)
{
if (item.NodeType == XmlNodeType.Text)
{
shader.source += ((XText)item).Value;
}
else if (item.NodeType == XmlNodeType.Element)
{
string name = (string)((XElement)item).Attribute("name");
string value = (string)((XElement)item).Attribute("value");
if (value == null)
{
value = "";
}
if (name != null)
{
shader.defines[name] = value;
}
}
}
effect.shaders.Add(shader);
}
private void WriteShader(Effect.Shader shader, string filename)
{
string output = "";
foreach (KeyValuePair <string, string> pair in shader.defines)
{
output += string.Format("#define {0} {1}\n", pair.Key, pair.Value);
}
output += shader.source;
File.WriteAllText(filename, output);
}
private void Compile(Effect.Shader shader, string type)
{
Dictionary <string, string> args = new Dictionary <string, string>();
args["temp"] = Path.GetTempPath();
if (shader.entry != null)
{
args["entry"] = shader.entry;
}
if (shader.target != null)
{
args["target"] = shader.target;
}
args["in"] = Path.Combine(args["temp"], "in.source");
args["out"] = Path.Combine(args["temp"], "out.binary");
WriteShader(shader, args["in"]);
if (shader.isVertex)
{
mgr.RunTool(type, "vertex", args);
}
else
{
mgr.RunTool(type, "pixel", args);
}
try {
shader.binary[type] = File.ReadAllBytes(args["out"]);
} catch (Exception) { }
try {
File.Delete(args["in"]);
} catch (Exception) { }
try {
File.Delete(args["out"]);
} catch (Exception) { }
}