public bool FindVariable(string name, out ShaderVariableMapping variable)
{
foreach (var v in variables)
{
if (v.name == name)
{
variable = v;
return(true);
}
}
variable = null;
return(false);
}
internal static void CalculateContantBufferVariableMappings(ShaderVariable[][] constantBufferVariables, out ReadOnlyCollection <ShaderConstantBufferMapping> constantBufferMappings)
{
int offset = 0, dwordIndex = 0;
bool firstVariableProcessed = false;
var constantBufferMappingsArray = new ShaderConstantBufferMapping[constantBufferVariables.Length];
for (int i = 0; i != constantBufferVariables.Length; ++i)
{
var variables = constantBufferVariables[i];
if (variables == null)
{
throw new ArgumentException("Constant buffers cannot be empty");
}
var variablesMapping = new ShaderVariableMapping[variables.Length];
for (int v = 0; v != variables.Length; ++v)
{
var variable = variables[v];
int stride = VariableTypeToSrcStride(variable.type);
int dwordCount = VariableTypeToSrcDWORDCount(variable.type);
if (variable.elements >= 1)
{
stride *= variable.elements;
dwordCount *= variable.elements;
}
if (firstVariableProcessed && dwordCount != 1)
{
int alignedIndex = dwordIndex % 4;
if (dwordCount > alignedIndex)
{
int remander = 4 - alignedIndex;
dwordIndex += remander;
offset += remander * sizeof(float);
}
}
variablesMapping[v] = new ShaderVariableMapping(variable.name, variable.type, variable.elements, offset);
firstVariableProcessed = true;
offset += stride;
dwordIndex += dwordCount;
}
constantBufferMappingsArray[i] = new ShaderConstantBufferMapping(offset, variablesMapping);
}
constantBufferMappings = new ReadOnlyCollection <ShaderConstantBufferMapping>(constantBufferMappingsArray);
}
public abstract void Update <T>(T[] data, ShaderVariableMapping variable) where T : struct;
public abstract void Update <T>(T data, ShaderVariableMapping variable) where T : unmanaged;
/// <summary> /// Writes color as float4 /// </summary> public abstract void Update(Color4[] colors, ShaderVariableMapping variable);
public abstract void Update(Quat[] quaternions, ShaderVariableMapping variable);
public abstract void Update(Mat4[] matrices, ShaderVariableMapping variable);
public abstract void Update(Vec4[] vectors, ShaderVariableMapping variable);
public abstract void Update(float[] values, ShaderVariableMapping variable);
public abstract void Update(Mat4 matrix, ShaderVariableMapping variable);
internal static bool FindVariable(ReadOnlyCollection <ShaderConstantBufferMapping> constantBufferMappings, string name, out ShaderVariableMapping variable)
{
if (constantBufferMappings == null)
{
variable = null;
return(false);
}
foreach (var constantBuffer in constantBufferMappings)
{
if (constantBuffer.FindVariable(name, out variable))
{
return(true);
}
}
variable = null;
return(false);
}
public bool FindVariable(string name, out ShaderVariableMapping variable)
{
return(ShaderBase.FindVariable(constantBufferMappings, name, out variable));
}