private MojoShader.MOJOSHADER_symbolType getSymbolType(ActiveUniformType type)
{
ActiveUniformType baseType = UniformTypeInfos.getBaseType(type);
switch (baseType)
{
case ActiveUniformType.Int:
case ActiveUniformType.UnsignedInt:
return(MojoShader.MOJOSHADER_symbolType.MOJOSHADER_SYMTYPE_INT);
case ActiveUniformType.Float:
case ActiveUniformType.Double:
return(MojoShader.MOJOSHADER_symbolType.MOJOSHADER_SYMTYPE_FLOAT);
case ActiveUniformType.Sampler1D:
return(MojoShader.MOJOSHADER_symbolType.MOJOSHADER_SYMTYPE_SAMPLER1D);
case ActiveUniformType.Sampler2D:
return(MojoShader.MOJOSHADER_symbolType.MOJOSHADER_SYMTYPE_SAMPLER2D);
case ActiveUniformType.Sampler3D:
return(MojoShader.MOJOSHADER_symbolType.MOJOSHADER_SYMTYPE_SAMPLER3D);
case ActiveUniformType.SamplerCube:
return(MojoShader.MOJOSHADER_symbolType.MOJOSHADER_SYMTYPE_SAMPLERCUBE);
}
return(MojoShader.MOJOSHADER_symbolType.MOJOSHADER_SYMTYPE_VOID);
}
private void LoadSampler(MojoShader.MOJOSHADER_symbol sym, ActiveUniformType type)
{
MojoShader.MOJOSHADER_sampler s = new MojoShader.MOJOSHADER_sampler();
s.index = (int)sym.register_index;
s.name = sym.name;
s.texbem = 0;
s.type = getSamplerType(UniformTypeInfos.getBaseType(type));
Samplers.Add(s);
}
private void LoadUniforms()
{
Symbols = new List <MojoShader.MOJOSHADER_symbol>();
Samplers = new List <MojoShader.MOJOSHADER_sampler>();
int count = 0;
GL.GetProgram(program, GetProgramParameterName.ActiveUniforms, out count);
int maxNameLength = 0;
GL.GetProgram(program, GetProgramParameterName.ActiveUniformMaxLength, out maxNameLength);
StringBuilder nameData = new StringBuilder(maxNameLength);
for (int uni = 0; uni < count; ++uni)
{
int arraySize = 0;
ActiveUniformType type;
int actLen = 0;
GL.GetActiveUniform(program, uni, maxNameLength, out actLen, out arraySize, out type, nameData);
string name = nameData.ToString();
uint elementSize = UniformTypeInfos.getElementSize(type);
MojoShader.MOJOSHADER_symbol sym = new MojoShader.MOJOSHADER_symbol();
sym.name = name;
sym.info = new MojoShader.MOJOSHADER_symbolTypeInfo();
sym.info.elements = (uint)arraySize;
sym.info.columns = UniformTypeInfos.getColumnCount(type);
sym.info.rows = UniformTypeInfos.getElementCount(type, UniformTypeInfos.getBaseType(type)) / sym.info.columns;
sym.info.members = IntPtr.Zero;
sym.info.member_count = 0;
sym.info.parameter_class = getSymbolClass(type); //TODO:
sym.info.parameter_type = getSymbolType(type); //TODO:
sym.register_index = (uint)GL.GetUniformLocation(program, name);
sym.register_count = (uint)arraySize * (uint)Math.Ceiling(elementSize / 4.0f);
ActiveUniformType baseType = UniformTypeInfos.getBaseType(type);
if (baseType == ActiveUniformType.Bool)
{
sym.register_set = MojoShader.MOJOSHADER_symbolRegisterSet.MOJOSHADER_SYMREGSET_BOOL;
}
else if (baseType == ActiveUniformType.Float)
{
sym.register_set = MojoShader.MOJOSHADER_symbolRegisterSet.MOJOSHADER_SYMREGSET_FLOAT4;
}
else if (baseType == ActiveUniformType.Int || baseType == ActiveUniformType.UnsignedInt)
{
sym.register_set = MojoShader.MOJOSHADER_symbolRegisterSet.MOJOSHADER_SYMREGSET_INT4;
}
else
{
sym.register_set = MojoShader.MOJOSHADER_symbolRegisterSet.MOJOSHADER_SYMREGSET_SAMPLER;
}
Symbols.Add(sym);
if (sym.register_set == MojoShader.MOJOSHADER_symbolRegisterSet.MOJOSHADER_SYMREGSET_SAMPLER)
{
LoadSampler(sym, type);
}
//TODO: add to list
nameData.Clear();
}
}