private static QWaveForm ParseWaveform(QShaderTokenizer tokenizer)
{
return(new QWaveForm
{
Name = tokenizer.GetNext().ToLower(),
Bas = ParserTools.ToFloat(tokenizer.GetNext()),
Amp = ParserTools.ToFloat(tokenizer.GetNext()),
Phase = ParserTools.ToFloat(tokenizer.GetNext()),
Freq = ParserTools.ToFloat(tokenizer.GetNext())
});
}
private static QShaderStage ParseStage(QShaderTokenizer tokenizer)
{
var stage = new QShaderStage();
// Parse a Stage
while (!tokenizer.EOF)
{
var token = tokenizer.GetNext();
if (token.Equals("}"))
{
break;
}
switch (token.ToLower())
{
case "clampmap":
stage.Clamp = true;
goto case "map";
case "map":
stage.Map = tokenizer.GetNext(); //.replace()/(\.jpg|\.tga)/, '.png');
break;
case "animmap":
stage.Map = "anim";
stage.AnimFreq = ParserTools.ToFloat(tokenizer.GetNext());
var nextMap = tokenizer.GetNext();
var match = Regex.Match(nextMap, @"(\.jpg|\.tga)");
while (match.Success)
{
stage.AnimMaps.Add(nextMap);
nextMap = tokenizer.GetNext();
match = Regex.Match(nextMap, @"(\.jpg|\.tga)");
}
tokenizer.MovePrev();
break;
case "rgbgen":
stage.RgbGen = tokenizer.GetNext().ToLower();
switch (stage.RgbGen)
{
case "wave":
stage.RgbWaveform = ParseWaveform(tokenizer);
if (stage.RgbWaveform == null)
{
stage.RgbGen = "identity";
}
break;
}
;
break;
case "alphagen":
stage.AlphaGen = tokenizer.GetNext().ToLower();
switch (stage.AlphaGen)
{
case "wave":
stage.AlphaWaveform = ParseWaveform(tokenizer);
if (stage.AlphaWaveform == null)
{
stage.AlphaGen = "1.0";
}
break;
default:
break;
}
break;
case "alphafunc":
stage.AlphaFunc = tokenizer.GetNext().ToUpper();
break;
case "blendfunc":
stage.BlendSrc = tokenizer.GetNext();
stage.HasBlendFunc = true;
if (stage.DepthWriteOverride)
{
stage.DepthWrite = false;
}
switch (stage.BlendSrc)
{
case "add":
stage.BlendSrc = "GL_ONE";
stage.BlendDest = "GL_ONE";
break;
case "blend":
stage.BlendSrc = "GL_SRC_ALPHA";
stage.BlendDest = "GL_ONE_MINUS_SRC_ALPHA";
break;
case "filter":
stage.BlendSrc = "GL_DST_COLOR";
stage.BlendDest = "GL_ZERO";
break;
default:
stage.BlendDest = tokenizer.GetNext();
break;
}
break;
case "depthfunc":
stage.DepthFunc = tokenizer.GetNext().ToLower();
break;
case "depthwrite":
stage.DepthWrite = true;
stage.DepthWriteOverride = true;
break;
case "tcmod":
var tcMod = new QTcMod
{
Type = tokenizer.GetNext().ToLower()
};
switch (tcMod.Type)
{
case "rotate":
tcMod.Angle = Geometry.DegreeToRadian(ParserTools.ToFloat(tokenizer.GetNext()));
break;
case "scale":
tcMod.ScaleX = ParserTools.ToFloat(tokenizer.GetNext());
tcMod.ScaleY = ParserTools.ToFloat(tokenizer.GetNext());
break;
case "scroll":
tcMod.SSpeed = ParserTools.ToFloat(tokenizer.GetNext());
tcMod.TSpeed = ParserTools.ToFloat(tokenizer.GetNext());
break;
case "stretch":
tcMod.WaveForm = ParseWaveform(tokenizer);
if (tcMod.WaveForm == null)
{
tcMod.Type = "";
}
break;
case "turb":
tcMod.Turbulance = new QWaveForm
{
Name = char.IsLetter(tokenizer.GetToken()[0])
? tokenizer.GetNext()
: "",
Bas = ParserTools.ToFloat(tokenizer.GetNext()),
Amp = ParserTools.ToFloat(tokenizer.GetNext()),
Phase = ParserTools.ToFloat(tokenizer.GetNext()),
Freq = ParserTools.ToFloat(tokenizer.GetNext())
};
break;
default:
tcMod.Type = "";
break;
}
if (!tcMod.Type.Equals(""))
{
stage.TcMods.Add(tcMod);
}
break;
case "tcgen":
stage.TcGen = tokenizer.GetNext();
break;
default:
break;
}
}
if (stage.BlendSrc.Equals("GL_ONE") && stage.BlendDest.Equals("GL_ZERO"))
{
stage.HasBlendFunc = false;
stage.DepthWrite = true;
}
return(stage);
}
/// <summary>
/// Parsear shader
/// </summary>
private static QShaderData ParseShader(QShaderTokenizer tokenizer)
{
var qsd = new QShaderData();
qsd.Name = tokenizer.GetNext();
var token = tokenizer.GetNext();
if (!token.Equals("{"))
{
return(null);
}
// Parse a shader
while (!tokenizer.EOF)
{
token = tokenizer.GetNext().ToLower();
if (token.Equals("}"))
{
break;
}
switch (token)
{
case "{":
var stage = ParseStage(tokenizer);
// I really really really don't like doing this, which basically just forces lightmaps to use the 'filter' blendmode
// but if I don't a lot of textures end up looking too bright. I'm sure I'm jsut missing something, and this shouldn't
// be needed.
if (stage.IsLightMap() && stage.HasBlendFunc)
{
stage.BlendSrc = "GL_DST_COLOR";
stage.BlendDest = "GL_ZERO";
}
// I'm having a ton of trouble getting lightingSpecular to work properly,
// so this little hack gets it looking right till I can figure out the problem
if (stage.AlphaGen.Equals("lightingspecular"))
{
stage.BlendSrc = "GL_ONE";
stage.BlendDest = "GL_ZERO";
stage.HasBlendFunc = false;
stage.DepthWrite = true;
}
if (stage.HasBlendFunc)
{
qsd.Blend = true;
}
else
{
qsd.Opaque = true;
}
qsd.Stages.Add(stage);
break;
case "cull":
qsd.Cull = tokenizer.GetNext();
break;
case "deformvertexes":
var deform = new QShaderDeform {
Type = tokenizer.GetNext().ToLower()
};
switch (deform.Type)
{
case "wave":
deform.Spread = 1.0f / ParserTools.ToFloat(tokenizer.GetNext());
deform.WaveForm = ParseWaveform(tokenizer);
break;
case "bulge":
deform.BulgeWidth = ParserTools.ToFloat(tokenizer.GetNext());
deform.BulgeHeight = ParserTools.ToFloat(tokenizer.GetNext());
deform.BulgeSpeed = ParserTools.ToFloat(tokenizer.GetNext());
break;
default:
deform = null;
break;
}
if (deform != null)
{
qsd.VertexDeforms.Add(deform);
}
break;
case "sort":
var sort = tokenizer.GetNext().ToLower();
switch (sort)
{
case "portal":
qsd.Sort = 1;
break;
case "sky":
qsd.Sort = 2;
break;
case "opaque":
qsd.Sort = 3;
break;
case "banner":
qsd.Sort = 6;
break;
case "underwater":
qsd.Sort = 8;
break;
case "additive":
qsd.Sort = 9;
break;
case "nearest":
qsd.Sort = 16;
break;
default:
qsd.Sort = int.Parse(sort);
break;
}
;
break;
case "surfaceparm":
var param = tokenizer.GetNext().ToLower();
switch (param)
{
case "sky":
qsd.Sky = true;
break;
default:
break;
}
break;
default:
break;
}
}
if (qsd.Sort > 0)
{
qsd.Sort = qsd.Opaque ? 3 : 9;
}
return(qsd);
}
