public bool Update(ShaderParameterUpdater parameterUpdater)
{
bool dataChanged = false;
//fixed (BoundConstantBufferParam* paramReferences = &this.constantBufferParams[0])
{
for (int i = 0; i < this.constantBufferParams.Length; ++i)
{
dataChanged |= UpdateValue(parameterUpdater, ref Desc.Members[i], i);
}
}
return(dataChanged);
}
public void Update(GraphicsDevice graphicsDevice, ShaderParameterUpdater parameterUpdater)
{
var threadIndex = graphicsDevice.ThreadIndex;
bool dataChanged = constantBufferDatas[threadIndex].Update(parameterUpdater);
// Check if update is really needed
if (forceDataChanged)
{
forceDataChanged = false;
}
else if (!dataChanged)
{
return;
}
// Upload data to constant buffer
Buffer.SetData(graphicsDevice, dataStreams[threadIndex]);
}
private unsafe bool UpdateValue(ShaderParameterUpdater parameterUpdater, ref EffectParameterValueData shaderVariable, int i)
{
if (shaderVariable.Param.KeyIndex == -1)
{
throw new InvalidOperationException();
}
BoundConstantBufferParam paramReference = constantBufferParams[i];
var internalValue = parameterUpdater.GetInternalValue(shaderVariable.Param.KeyIndex);
// TODO: Comparing Counter+DataPointer is not enough (if realloc on same address)
if (internalValue.Counter == paramReference.DirtyCount &&
internalValue == paramReference.DataPointer)
{
return(false);
}
constantBufferParams[i] = new BoundConstantBufferParam
{
DataPointer = internalValue,
DirtyCount = internalValue.Counter
};
var destination = (byte *)(Data + shaderVariable.Offset);
int sourceOffset = 0;
float *variableData = (float *)destination; // + shaderVariable.Offset);
Matrix tempMatrix;
switch (shaderVariable.Param.Class)
{
case EffectParameterClass.Struct:
internalValue.ReadFrom((IntPtr)variableData, sourceOffset, shaderVariable.Size);
break;
case EffectParameterClass.Scalar:
for (int elt = 0; elt < shaderVariable.Count; ++elt)
{
internalValue.ReadFrom((IntPtr)variableData, sourceOffset, sizeof(float));
//*variableData = *source++;
sourceOffset += 4;
variableData += 4; // 4 floats
}
break;
case EffectParameterClass.Vector:
case EffectParameterClass.Color:
for (int elt = 0; elt < shaderVariable.Count; ++elt)
{
//Framework.Utilities.CopyMemory((IntPtr)variableData, (IntPtr)source, (int)(shaderVariable.ColumnCount * sizeof(float)));
internalValue.ReadFrom((IntPtr)variableData, sourceOffset, (int)(shaderVariable.ColumnCount * sizeof(float)));
sourceOffset += (int)shaderVariable.ColumnCount * 4;
variableData += 4;
}
break;
case EffectParameterClass.MatrixColumns:
for (int elt = 0; elt < shaderVariable.Count; ++elt)
{
//fixed (Matrix* p = &tempMatrix)
{
internalValue.ReadFrom((IntPtr)(byte *)&tempMatrix, sourceOffset, (int)(shaderVariable.ColumnCount * shaderVariable.RowCount * sizeof(float)));
((Matrix *)variableData)->CopyMatrixFrom((float *)&tempMatrix, unchecked ((int)shaderVariable.ColumnCount), unchecked ((int)shaderVariable.RowCount));
sourceOffset += (int)(shaderVariable.ColumnCount * shaderVariable.RowCount) * 4;
variableData += 4 * shaderVariable.RowCount;
}
}
break;
case EffectParameterClass.MatrixRows:
for (int elt = 0; elt < shaderVariable.Count; ++elt)
{
//fixed (Matrix* p = &tempMatrix)
{
internalValue.ReadFrom((IntPtr)(byte *)&tempMatrix, sourceOffset, (int)(shaderVariable.ColumnCount * shaderVariable.RowCount * sizeof(float)));
((Matrix *)variableData)->TransposeMatrixFrom((float *)&tempMatrix, unchecked ((int)shaderVariable.ColumnCount), unchecked ((int)shaderVariable.RowCount));
//source += shaderVariable.ColumnCount * shaderVariable.RowCount;
sourceOffset += (int)(shaderVariable.ColumnCount * shaderVariable.RowCount) * 4;
variableData += 4 * shaderVariable.RowCount;
}
}
break;
}
return(true);
}
public ShaderStageSetup()
{
parameterUpdater = new ShaderParameterUpdater();
ParameterCollections = new ParameterCollection[16];
}
private static void UpdateUnorderedAccessView(GraphicsDevice graphicsDevice, ref EffectParameterResourceData binding, ShaderParameterUpdater parameterUpdater)
{
var unorderedAccessView = (GraphicsResource)parameterUpdater.GetObject(binding.Param.KeyIndex);
graphicsDevice.SetUnorderedAccessView(binding.Stage, binding.SlotStart, unorderedAccessView);
}
private static void UpdateSampler(GraphicsDevice graphicsDevice, ref EffectParameterResourceData binding, ShaderParameterUpdater parameterUpdater)
{
var samplerState = (SamplerState)parameterUpdater.GetObject(binding.Param.KeyIndex);
graphicsDevice.SetSamplerState(binding.Stage, binding.SlotStart, samplerState);
}
private static void UpdateConstantBuffer(GraphicsDevice graphicsDevice, ref EffectParameterResourceData binding, ShaderParameterUpdater parameterUpdater)
{
var constantBufferHelper = parameterUpdater.GetValue <ParameterConstantBuffer>(binding.Param.KeyIndex);
// Update constant buffer content (if required)
constantBufferHelper.Update(graphicsDevice, parameterUpdater);
graphicsDevice.SetConstantBuffer(binding.Stage, binding.SlotStart, constantBufferHelper.Buffer);
}