private IEnumerable<InputAssemblerVertexOutput> GetVertexStreamInternal(
InputSignatureChunk vertexShaderInputSignature,
int vertexCount, int instanceID, int vertexID,
VertexBufferIndex[] vertexBufferIndices)
{
var inputParameterCount = vertexShaderInputSignature.Parameters.Count;
Dictionary<int, InputLayout.ProcessedInputElement> inputElementsKeyedByRegister = null;
if (InputLayout != null)
inputElementsKeyedByRegister = InputLayout.Elements.ToDictionary(x => x.RegisterIndex);
var processedVertexHandler = ProcessedVertex;
for (int i = 0; i < vertexCount; i++)
{
var output = new InputAssemblerVertexOutput();
output.VertexID = vertexID++;
output.InstanceID = instanceID;
output.Data = new Number4[inputParameterCount];
// TODO: Support non-32-bit formats.
foreach (var parameter in vertexShaderInputSignature.Parameters)
{
switch (parameter.SystemValueType)
{
case Name.Undefined:
case Name.Position:
if (inputElementsKeyedByRegister == null)
throw new Exception("InputLayout must be set in order to use these system value types.");
var inputElement = inputElementsKeyedByRegister[(int) parameter.Register];
vertexBufferIndices[inputElement.InputSlot].GetData(
output.Data, inputElement.RegisterIndex,
inputElement.AlignedByteOffset,
FormatHelper.SizeOfInBytes(inputElement.Format));
break;
case Name.VertexID:
output.Data[parameter.Register] = new Number4(output.VertexID, 0, 0, 0);
break;
case Name.InstanceID:
output.Data[parameter.Register] = new Number4(output.InstanceID, 0, 0, 0);
break;
}
}
if (processedVertexHandler != null)
processedVertexHandler(this, new InputAssemblerVertexEventArgs(output));
yield return output;
foreach (var vertexBufferIndex in vertexBufferIndices)
vertexBufferIndex.Increment(InputClassification.PerVertexData);
}
}
public InputAssemblerVertexEventArgs(InputAssemblerVertexOutput vertex)
{
_vertex = vertex;
}
private IEnumerable <InputAssemblerVertexOutput> GetVertexStreamInternal(
InputSignatureChunk vertexShaderInputSignature,
int vertexCount, int instanceID, int vertexID,
VertexBufferIndex[] vertexBufferIndices)
{
var inputParameterCount = vertexShaderInputSignature.Parameters.Count;
Dictionary <int, InputLayout.ProcessedInputElement> inputElementsKeyedByRegister = null;
if (InputLayout != null)
{
inputElementsKeyedByRegister = InputLayout.Elements.ToDictionary(x => x.RegisterIndex);
}
var processedVertexHandler = ProcessedVertex;
for (int i = 0; i < vertexCount; i++)
{
var output = new InputAssemblerVertexOutput();
output.VertexID = vertexID++;
output.InstanceID = instanceID;
output.Data = new Number4[inputParameterCount];
// TODO: Support non-32-bit formats.
foreach (var parameter in vertexShaderInputSignature.Parameters)
{
switch (parameter.SystemValueType)
{
case Name.Undefined:
case Name.Position:
if (inputElementsKeyedByRegister == null)
{
throw new Exception("InputLayout must be set in order to use these system value types.");
}
var inputElement = inputElementsKeyedByRegister[(int)parameter.Register];
vertexBufferIndices[inputElement.InputSlot].GetData(
output.Data, inputElement.RegisterIndex,
inputElement.AlignedByteOffset,
FormatHelper.SizeOfInBytes(inputElement.Format));
break;
case Name.VertexID:
output.Data[parameter.Register] = new Number4(output.VertexID, 0, 0, 0);
break;
case Name.InstanceID:
output.Data[parameter.Register] = new Number4(output.InstanceID, 0, 0, 0);
break;
}
}
if (processedVertexHandler != null)
{
processedVertexHandler(this, new InputAssemblerVertexEventArgs(output));
}
yield return(output);
foreach (var vertexBufferIndex in vertexBufferIndices)
{
vertexBufferIndex.Increment(InputClassification.PerVertexData);
}
}
}
public InputAssemblerVertexEventArgs(InputAssemblerVertexOutput vertex)
{
_vertex = vertex;
}
