public static void parse(String url, String src, OnShadersParsed onload)
{
List <shader_t> shaders = new List <shader_t>();
ShaderTokenizer tokens = new ShaderTokenizer(src);
// Parse a shader
while (!tokens.EOF())
{
String name = tokens.next();
shader_t shader = ShaderParser.parseShader(name, tokens);
if (shader != null)
{
shader.url = url;
if (shader.stages != null)
{
for (var i = 0; i < shader.stages.Count; ++i)
{
// Build a OpenGL shader program out of the stage parameters set here
shader.stages[i].shaderSrc = ShaderParser.buildShaderSource(shader, shader.stages[i]);
}
}
}
shaders.Add(shader);
}
// Send shaders to gl Thread
onload(shaders);
}
public static shader_t parseShader(String name, ShaderTokenizer tokens)
{
string param;
String brace = tokens.next();
if (brace != "{")
{
return(null);
}
shader_t shader = new shader_t();
shader.name = name;
// Parse a shader
while (!tokens.EOF())
{
String token = tokens.next().ToLower();
if (token == "}")
{
break;
}
switch (token)
{
case "{":
{
stage_t stage = ShaderParser.parseStage(tokens);
// 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 == true && (stage.hasBlendFunc == true))
{
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 == "lightingspecular")
{
stage.blendSrc = "GL_ONE";
stage.blendDest = "GL_ZERO";
stage.hasBlendFunc = false;
stage.depthWrite = true;
shader.stages = new List <stage_t>();
}
if (stage.hasBlendFunc == true)
{
shader.blend = true;
}
else
{
shader.opaque = true;
}
shader.stages.Add(stage);
}
break;
case "cull":
shader.cull = tokens.next();
break;
case "deformvertexes":
deform_t deform = new deform_t();
deform.type = tokens.next().ToLower();
switch (deform.type)
{
case "wave":
deform.spread = 1.0 / double.Parse(tokens.next());
deform.waveform = ShaderParser.parseWaveform(tokens);
break;
default: deform = null; break;
}
if (deform != null)
{
shader.vertexDeforms.Add(deform);
}
break;
case "sort":
String sort = tokens.next().ToLower();
switch (sort)
{
case "portal": shader.sort = 1; break;
case "sky": shader.sort = 2; break;
case "opaque": shader.sort = 3; break;
case "banner": shader.sort = 6; break;
case "underwater": shader.sort = 8; break;
case "additive": shader.sort = 9; break;
case "nearest": shader.sort = 16; break;
default: shader.sort = int.Parse(sort); break;
}
;
break;
case "surfaceparm":
param = tokens.next().ToLower();
switch (param)
{
case "sky":
shader.sky = true;
break;
default: break;
}
break;
case "skyparms":
param = tokens.next().ToLower();
shader.sky_env_map = new sky_env_map_p(param);;
break;
default: break;
}
}
if (shader.sort < 0 || shader.sort == 0)
{
shader.sort = (shader.opaque ? 3 : 9);
}
//if(!shader['sort']) {
//shader['sort'] = (shader['opaque'] ? 3 : 9);
//}
return(shader);
}
public static stage_t parseStage(ShaderTokenizer tokens)
{
stage_t stage = new stage_t();
String map;
// Parse a shader
while (!tokens.EOF())
{
String token = tokens.next();
if (token == "}")
{
break;
}
switch (token.ToLower())
{
case "clampmap":
stage.clamp = true;
break;
case "map":
map = tokens.next();
if (!Config.preserve_tga_images)
{
//Regex r;
//r = new Regex("(\\.jpg|\\.tga)");
map = map.Replace(".tga", ".jpg");
//map = r.Replace(map, ".jpg");
//map = map.replaceAll(new RegExp(r'(\.jpg|\.tga)'), '.jpg');
}
stage.map = map;
//stage.map = tokens.next().replaceAll(/(\.jpg|\.tga)/, '.jpg');
break;
case "animmap":
stage.map = "anim";
stage.animFreq = double.Parse(tokens.next());
String nextMap = tokens.next();
while (nextMap.Contains(".tga") || nextMap.Contains(".jpg")) //while(nextMap.match(/(\.jpg|\.tga)/))
{
map = nextMap;
if (!Config.preserve_tga_images)
{
map = map.Replace(".tga", ".jpg");
//map = nextMap.replaceAll(new RegExp(r'(\.jpg|\.tga)'), '.jpg');
}
//
stage.animMaps.Add(map);
//stage.animMaps.push(nextMap.replace(/(\.jpg|\.tga)/, '.jpg'));
nextMap = tokens.next();
}
tokens.prev();
break;
case "rgbgen":
stage.rgbGen = tokens.next().ToLower();;
switch (stage.rgbGen)
{
case "wave":
stage.rgbWaveform = ShaderParser.parseWaveform(tokens);
if (stage.rgbWaveform == null)
{
stage.rgbGen = "identity";
}
break;
}
;
break;
case "alphagen":
stage.alphaGen = tokens.next().ToLower();
switch (stage.alphaGen)
{
case "wave":
stage.alphaWaveform = ShaderParser.parseWaveform(tokens);
if (stage.alphaWaveform == null)
{
stage.alphaGen = "1.0";
}
break;
default: break;
}
;
break;
case "alphafunc":
stage.alphaFunc = tokens.next().ToUpper();
break;
case "blendfunc":
stage.blendSrc = tokens.next();
stage.hasBlendFunc = true;
if (stage.depthWriteOverride == false)
{
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 = tokens.next();
break;
}
break;
case "depthfunc":
stage.depthFunc = tokens.next().ToLower();
break;
case "depthwrite":
stage.depthWrite = true;
stage.depthWriteOverride = true;
break;
case "tcmod":
tcMod_t tcMod = new tcMod_t();
tcMod.type = tokens.next().ToLower();
switch (tcMod.type)
{
case "rotate":
tcMod.angle = double.Parse(tokens.next()) * (Math.PI / 180);
break;
case "scale":
tcMod.scaleX = double.Parse(tokens.next());
tcMod.scaleY = double.Parse(tokens.next());
break;
case "scroll":
tcMod.sSpeed = double.Parse(tokens.next());
tcMod.tSpeed = double.Parse(tokens.next());
break;
case "stretch":
tcMod.waveform = ShaderParser.parseWaveform(tokens);
if (tcMod.waveform == null)
{
tcMod.type = null;
}
break;
case "turb":
tcMod.turbulance = new turbulance_t();
tcMod.turbulance.@base = double.Parse(tokens.next());
tcMod.turbulance.amp = double.Parse(tokens.next());
tcMod.turbulance.phase = double.Parse(tokens.next());
tcMod.turbulance.freq = double.Parse(tokens.next());
break;
default: tcMod.type = null; break;
}
if (tcMod.type != null)
{
stage.tcMods.Add(tcMod);
}
break;
case "tcgen":
stage.tcGen = tokens.next();
break;
default: break;
}
}
if (stage.blendSrc == "GL_ONE" && stage.blendDest == "GL_ZERO")
{
stage.hasBlendFunc = false;
stage.depthWrite = true;
}
stage.isLightmap = stage.map == "\\$lightmap";
return(stage);
}