public void SetInputRegisterValue(int contextIndex, int index0, int index1, ref Number4 value)
{
if (index0 < _requiredRegisters.NumPrimitives && index1 < _requiredRegisters.Inputs)
{
_executionContexts[contextIndex].SetInputRegisterValue(index0, index1, ref value);
}
}
public override void Clear(ref Number4 color)
{
foreach (var subresource in _subresources)
{
subresource.Clear(ref color);
}
}
internal Number4 DoBlend(int renderTargetIndex, ref Number4 source, ref Number4 destination, ref Number4 blendFactor)
{
var blendDescription = _renderTargetBlendDescriptions[renderTargetIndex];
if (!blendDescription.IsBlendEnabled)
{
return(source);
}
var result = new Number4();
// RGB blending
var colorDestinationBlendFactor = GetBlendFactor(blendDescription.DestinationBlend, ref source, ref destination, ref blendFactor);
var colorSourceBlendFactor = GetBlendFactor(blendDescription.SourceBlend, ref source, ref destination, ref blendFactor);
var colorDestination = Number4.Multiply(ref destination, ref colorDestinationBlendFactor);
var colorSource = Number4.Multiply(ref source, ref colorSourceBlendFactor);
result.R = DoBlendOperation(blendDescription.BlendOperation, colorSource.R, colorDestination.R);
result.G = DoBlendOperation(blendDescription.BlendOperation, colorSource.G, colorDestination.G);
result.B = DoBlendOperation(blendDescription.BlendOperation, colorSource.B, colorDestination.B);
// Alpha blending
var alphaDestinationBlendFactor = GetBlendFactor(blendDescription.DestinationAlphaBlend, ref source, ref destination, ref blendFactor);
var alphaSourceBlendFactor = GetBlendFactor(blendDescription.SourceAlphaBlend, ref source, ref destination, ref blendFactor);
var alphaDestination = destination.A * alphaDestinationBlendFactor.A;
var alphaSource = source.A * alphaSourceBlendFactor.A;
result.A = DoBlendOperation(blendDescription.AlphaBlendOperation, alphaSource, alphaDestination);
return(result);
}
public VirtualMachine(BytecodeContainer bytecode, int numContexts)
{
if (bytecode.Shader.Version.ProgramType == ProgramType.PixelShader && numContexts % 4 != 0)
throw new ArgumentOutOfRangeException("numContexts", "numContexts must be a multiple of 4 for pixel shaders.");
_bytecode = bytecode;
var instructionTokens = bytecode.Shader.Tokens.OfType<InstructionToken>().ToArray();
var branchingInstructions = ExplicitBranchingRewriter.Rewrite(instructionTokens);
var controlFlowGraph = ControlFlowGraph.FromInstructions(branchingInstructions);
_executableInstructions = ExecutableInstructionRewriter.Rewrite(controlFlowGraph).ToArray();
_requiredRegisters = RequiredRegisters.FromShader(bytecode.Shader);
_executionContexts = new ExecutionContext[numContexts];
for (int i = 0; i < _executionContexts.Length; i++)
_executionContexts[i] = new ExecutionContext(this, i, _requiredRegisters);
ConstantBuffers = new Number4[_requiredRegisters.ConstantBuffers.Count][];
for (int i = 0; i < _requiredRegisters.ConstantBuffers.Count; i++)
ConstantBuffers[i] = new Number4[_requiredRegisters.ConstantBuffers[i]];
TextureSamplers = new TextureSampler[_requiredRegisters.Resources.Count];
for (int i = 0; i < _requiredRegisters.Resources.Count; i++)
TextureSamplers[i] = TextureSamplerFactory.Create(_requiredRegisters.Resources[i]);
Textures = new ITexture[_requiredRegisters.Resources.Count];
Samplers = new SamplerState[_requiredRegisters.Samplers];
}
/// <summary>
/// Sets a callback to be used whenever texture data is requested by a shader.
/// The callback will be passed the u, v and w coordinates.
/// </summary>
/// <typeparam name="TColor">Color type, i.e. Vector4.</typeparam>
/// <param name="name">Name of the resource.</param>
/// <param name="callback">The callback will be executed once for each texture fetch,
/// and will be passed the u, v and w coordinates.</param>
public void SetResource <TColor>(string name, ResourceCallback <TColor> callback)
where TColor : struct
{
// Validate.
var resourceIndex = _resourceBindings.FindIndex(x => x.Name == name);
if (resourceIndex == -1)
{
throw new ArgumentException("Could not find resource named '" + name + "'", "name");
}
if (StructUtility.SizeOf <TColor>() != Number4.SizeInBytes)
{
throw new ArgumentException(string.Format("Expected color struct to be {0} bytes, but was {1}'",
Number4.SizeInBytes, StructUtility.SizeOf <TColor>()));
}
// Set resource into virtual machine. We also set a default sampler state.
var registerIndex = new RegisterIndex((ushort)resourceIndex);
_virtualMachine.SetSampler(registerIndex, new SamplerState());
_virtualMachine.SetTexture(registerIndex,
new FakeTexture((u, v, w, i) =>
{
var bytes = StructUtility.ToBytes(callback(u, v, w, i));
return(Number4.FromByteArray(bytes, 0));
}));
}
/// <summary>
/// 使用Flags 进行复合显示和位运算
/// </summary>
public void Test04()
{
Number4 num = Number4.Four | Number4.Two;
Console.WriteLine(num);
Console.WriteLine((int)num);
}
public void Clear(ref Number4 value)
{
for (var i = 0; i < Data.Length; i++)
{
Data[i] = value;
}
}
protected override Number4 GetLinear(
SamplerState samplerState, ITextureMipMap mipMap,
ref Number4 texCoords)
{
int intTexelX = (int) texCoords.Float0;
int intTexelY = (int) texCoords.Float1;
float fracX = texCoords.Float0 - intTexelX;
float fracY = texCoords.Float1 - intTexelY;
texCoords.Int0 = intTexelX;
texCoords.Int1 = intTexelY;
var c00 = GetColor(samplerState, mipMap, ref texCoords);
texCoords.Int0 = intTexelX + 1;
texCoords.Int1 = intTexelY;
var c10 = GetColor(samplerState, mipMap, ref texCoords);
texCoords.Int0 = intTexelX;
texCoords.Int1 = intTexelY + 1;
var c01 = GetColor(samplerState, mipMap, ref texCoords);
texCoords.Int0 = intTexelX + 1;
texCoords.Int1 = intTexelY + 1;
var c11 = GetColor(samplerState, mipMap, ref texCoords);
var cMinV = Number4.Lerp(ref c00, ref c10, fracX);
var cMaxV = Number4.Lerp(ref c01, ref c11, fracX);
return Number4.Lerp(ref cMinV, ref cMaxV, fracY);
}
internal void Execute(IEnumerable <Pixel> inputs)
{
foreach (var pixel in inputs)
{
// TODO
const int renderTargetIndex = 0;
var renderTarget = _renderTargetViews[renderTargetIndex];
var renderTargetArrayIndex = pixel.RenderTargetArrayIndex;
var processedPixelHandler = ProcessedPixel;
for (int sampleIndex = 0; sampleIndex < MultiSampleCount; ++sampleIndex)
{
if (!pixel.Samples[sampleIndex].Covered)
{
continue;
}
float newDepth = pixel.Samples[sampleIndex].Depth;
var source = pixel.Color;
var destination = renderTarget.GetColor(renderTargetArrayIndex, pixel.X, pixel.Y, sampleIndex);
if (_depthStencilView != null)
{
float currentDepth = _depthStencilView.GetDepth(renderTargetArrayIndex, pixel.X, pixel.Y, sampleIndex);
if (!DepthStencilState.DepthTestPasses(newDepth, currentDepth))
{
if (processedPixelHandler != null)
{
processedPixelHandler(this, new PixelEventArgs(
pixel.Vertices, pixel.PrimitiveID, renderTargetArrayIndex, pixel.X, pixel.Y,
ref source, ref destination, null,
PixelExclusionReason.FailedDepthTest));
}
continue;
}
}
// Use blend state to calculate final color.
var finalColor = BlendState.DoBlend(renderTargetIndex, ref source, ref destination, ref _blendFactorNumber);
finalColor = Number4.Saturate(ref finalColor);
renderTarget.SetColor(renderTargetArrayIndex, pixel.X, pixel.Y, sampleIndex, ref finalColor);
if (processedPixelHandler != null)
{
processedPixelHandler(this, new PixelEventArgs(
pixel.Vertices, pixel.PrimitiveID, renderTargetArrayIndex, pixel.X, pixel.Y,
ref source, ref destination, finalColor,
PixelExclusionReason.NotExcluded));
}
if (_depthStencilView != null && DepthStencilState.Description.IsDepthEnabled)
{
_depthStencilView.SetDepth(renderTargetArrayIndex, pixel.X, pixel.Y, sampleIndex, newDepth);
}
}
}
}
/// <summary>
/// 2-dimensional vector dot-product of components rg, POS-swizzle.
/// </summary>
/// <param name="saturate">True to clamp the result to [0...1], otherwise false.</param>
/// <param name="src0">The components in the operation.</param>
/// <param name="src1">The components in the operation.</param>
/// <returns>
/// The result of the operation.
/// <example>dest = src0.r * src1.r + src0.g * src1.g</example>
/// </returns>
public static Number Dp2(bool saturate, ref Number4 src0, ref Number4 src1)
{
return(Number.FromFloat(
src0.Number0.Float * src1.Number0.Float
+ src0.Number1.Float * src1.Number1.Float,
saturate));
}
/// <summary>
///
/// </summary>
/// <param name="texture"></param>
/// <param name="samplerState"></param>
/// <param name="location"></param>
/// <param name="lod">A number that specifies the mipmap level. If the value is <=0, the zero'th (biggest map)
/// is used. The fractional value (if supplied) is used to interpolate between two mipmap levels.</param>
/// <returns></returns>
public Number4 SampleLevel(
ITexture texture, SamplerState samplerState,
ref Number4 location,
float lod)
{
// TODO: Don't always pass minifying=true to GetFilteredColor.
switch (samplerState.Filter)
{
case Filter.MinPointMagLinearMipPoint:
case Filter.MinLinearMagMipPoint:
case Filter.MinMagLinearMipPoint:
case Filter.MinMagMipPoint:
{
// Calculate nearest mipmap level.
var nearestLevel = MathUtility.Round(lod);
return GetFilteredColor(texture, samplerState, true, nearestLevel, ref location);
}
case Filter.MinLinearMagPointMipLinear:
case Filter.MinMagMipLinear:
case Filter.MinMagPointMipLinear:
case Filter.MinPointMagMipLinear:
{
// Calculate nearest two levels and linearly filter between them.
var nearestLevelInt = (int) lod;
var d = lod - nearestLevelInt;
var c1 = GetFilteredColor(texture, samplerState, true, nearestLevelInt, ref location);
var c2 = GetFilteredColor(texture, samplerState, true, nearestLevelInt + 1, ref location);
return Number4.Lerp(ref c1, ref c2, d);
}
default:
throw new NotSupportedException();
}
}
public void GetRegister(OperandType operandType, RegisterIndex registerIndex, out Number4[] register, out int index)
{
switch (operandType)
{
case OperandType.ConstantBuffer:
register = _virtualMachine.ConstantBuffers[registerIndex.Index2D_0];
index = registerIndex.Index2D_1;
return;
case OperandType.Input:
// Only GS requires 2-dimensional inputs, but for simplicity we always use a 2-dimensional input array.
register = Inputs[registerIndex.Index2D_0];
index = registerIndex.Index2D_1;
return;
case OperandType.Output:
register = Outputs;
index = registerIndex.Index1D;
return;
case OperandType.Temp:
register = Temps;
index = registerIndex.Index1D;
return;
case OperandType.IndexableTemp:
register = IndexableTemps[registerIndex.Index2D_0];
index = registerIndex.Index2D_1;
return;
default:
throw new ArgumentException("Unsupported operand type: " + operandType);
}
}
internal override void GenerateMips()
{
for (int i = 0; i < _description.ArraySize; i++)
{
for (int mipSlice = 1; mipSlice < _subresources[0].Length; ++mipSlice)
{
var subresource = GetSubresource(i, mipSlice);
int width = subresource.Width;
int height = subresource.Height;
for (int y = 0; y < height; ++y)
{
for (int x = 0; x < width; ++x)
{
int previousLevelX = x * 2;
int previousLevelY = y * 2;
var moreDetailedMipLevel = GetSubresource(i, mipSlice - 1);
var c00 = moreDetailedMipLevel.GetData(previousLevelX, previousLevelY);
var c10 = moreDetailedMipLevel.GetData(ClampToDimension(previousLevelX + 1, moreDetailedMipLevel.Width), previousLevelY);
var c01 = moreDetailedMipLevel.GetData(previousLevelX, ClampToDimension(previousLevelY + 1, moreDetailedMipLevel.Height));
var c11 = moreDetailedMipLevel.GetData(ClampToDimension(previousLevelX + 1, moreDetailedMipLevel.Width), ClampToDimension(previousLevelY + 1, moreDetailedMipLevel.Height));
var interpolatedColor = Number4.Average(ref c00, ref c10, ref c01, ref c11);
subresource.SetData(x, y, ref interpolatedColor);
}
}
}
}
}
protected override Number4 GetLinear(
SamplerState samplerState, ITextureMipMap mipMap,
ref Number4 texCoords)
{
int intTexelX = (int)texCoords.Float0;
int intTexelY = (int)texCoords.Float1;
float fracX = texCoords.Float0 - intTexelX;
float fracY = texCoords.Float1 - intTexelY;
texCoords.Int0 = intTexelX;
texCoords.Int1 = intTexelY;
var c00 = GetColor(samplerState, mipMap, ref texCoords);
texCoords.Int0 = intTexelX + 1;
texCoords.Int1 = intTexelY;
var c10 = GetColor(samplerState, mipMap, ref texCoords);
texCoords.Int0 = intTexelX;
texCoords.Int1 = intTexelY + 1;
var c01 = GetColor(samplerState, mipMap, ref texCoords);
texCoords.Int0 = intTexelX + 1;
texCoords.Int1 = intTexelY + 1;
var c11 = GetColor(samplerState, mipMap, ref texCoords);
var cMinV = Number4.Lerp(ref c00, ref c10, fracX);
var cMaxV = Number4.Lerp(ref c01, ref c11, fracX);
return(Number4.Lerp(ref cMinV, ref cMaxV, fracY));
}
public static Color ToColor(this Number4 value)
{
return(new Color(
(byte)(value.R * 255.0f),
(byte)(value.G * 255.0f),
(byte)(value.B * 255.0f),
(byte)(value.A * 255.0f)));
}
public IrConstantOperand(double value)
{
Value = new Number4(
Number.FromFloat((float)value),
Number.FromFloat(0),
Number.FromFloat(0),
Number.FromFloat(0));
}
protected override Number4 GetNearestNeighbor(
SamplerState samplerState, ITextureMipMap mipMap,
ref Number4 texCoords)
{
texCoords.Int0 = MathUtility.Floor(texCoords.Float0);
texCoords.Int1 = MathUtility.Floor(texCoords.Float1);
return(GetColor(samplerState, mipMap, ref texCoords));
}
public Number4 SampleGrad(
ITexture texture, SamplerState samplerState,
ref Number4 location,
ref Number4 ddx, ref Number4 ddy)
{
var lod = CalculateLevelOfDetail(texture, samplerState, ref ddx, ref ddy);
return SampleLevel(texture, samplerState, ref location, lod);
}
protected override Number4 GetNearestNeighbor(
SamplerState samplerState, ITextureMipMap mipMap,
ref Number4 texCoords)
{
texCoords.Int0 = MathUtility.Floor(texCoords.Float0);
texCoords.Int1 = MathUtility.Floor(texCoords.Float1);
return GetColor(samplerState, mipMap, ref texCoords);
}
private Number4[] CreatePixelShaderInput(ref BarycentricCoordinates coordinates)
{
float w = InterpolationUtility.PrecalculateW(
coordinates.Alpha, coordinates.Beta, coordinates.Gamma,
_p0.W, _p1.W, _p2.W);
var v0Data = _primitive.Vertices[0].OutputData;
var v1Data = _primitive.Vertices[1].OutputData;
var v2Data = _primitive.Vertices[2].OutputData;
// Calculate interpolated attribute values for this fragment.
// TODO: Optimize this.
var result = new Number4[_primitive.Vertices[0].OutputData.Length];
foreach (var outputInputBinding in OutputInputBindings.Bindings)
{
var v0Value = v0Data[outputInputBinding.Register];
var v1Value = v1Data[outputInputBinding.Register];
var v2Value = v2Data[outputInputBinding.Register];
if (outputInputBinding.SystemValueType != Name.Undefined)
{
throw new NotImplementedException();
}
// Create input values. Normally, this will require interpolation
// of the vertex attributes.
Number4 inputValue;
switch (outputInputBinding.InterpolationMode)
{
case InterpolationMode.Constant:
inputValue = v0Value;
break;
case InterpolationMode.Linear:
inputValue = InterpolationUtility.Perspective(
coordinates.Alpha, coordinates.Beta, coordinates.Gamma,
ref v0Value, ref v1Value, ref v2Value,
_p0.W, _p1.W, _p2.W, w);
break;
case InterpolationMode.LinearNoPerspective:
inputValue = InterpolationUtility.Linear(
coordinates.Alpha, coordinates.Beta, coordinates.Gamma,
ref v0Value, ref v1Value, ref v2Value);
break;
default:
throw new InvalidOperationException("Unrecognised interpolation mode: " + outputInputBinding.InterpolationMode);
}
// Apply component mask so that we don't overwrite other values in this register.
result[outputInputBinding.Register].WriteMaskedValue(
inputValue, outputInputBinding.ComponentMask);
}
return(result);
}
public void SetConstantBufferRegisterValue(int index0, int index1, ref Number4 value)
{
var constantBuffer = ConstantBuffers[index0];
if (index1 < constantBuffer.Length)
{
constantBuffer[index1] = value;
}
}
private static Number4 GetColor(SamplerState samplerState, ITextureMipMap mipMap, ref Number4 texCoords)
{
if (!GetTextureAddress(texCoords.Int0, mipMap.Width, samplerState.AddressU, out texCoords.Int0))
return samplerState.BorderColor;
if (!GetTextureAddress(texCoords.Int1, mipMap.Height, samplerState.AddressV, out texCoords.Int1))
return samplerState.BorderColor;
return mipMap.GetData(ref texCoords);
}
/// <summary>
/// Converts a 3D vector to an array index and 2D texture coordinates.
/// </summary>
public static void GetCubeMapCoordinates(ref Number4 location,
out int arrayIndex, out Number4 coordinates)
{
var absX = Math.Abs(location.X);
var absY = Math.Abs(location.Y);
var absZ = Math.Abs(location.Z);
// Select cube face using greatest magnitude component.
// Then divide other components by that component,
// and scale to [0..1].
coordinates = new Number4();
if (absX > absY && absX > absZ)
{
if (location.X > 0)
{
arrayIndex = PositiveX;
coordinates.X = ScaleTexCoord(-location.Z, absX);
coordinates.Y = 1.0f - ScaleTexCoord(location.Y, absX);
}
else
{
arrayIndex = NegativeX;
coordinates.X = ScaleTexCoord(location.Z, absX);
coordinates.Y = 1.0f - ScaleTexCoord(location.Y, absX);
}
}
else if (absY > absX && absY > absZ)
{
if (location.Y > 0)
{
arrayIndex = PositiveY;
coordinates.X = ScaleTexCoord(location.X, absY);
coordinates.Y = 1.0f - ScaleTexCoord(-location.Z, absY);
}
else
{
arrayIndex = NegativeY;
coordinates.X = ScaleTexCoord(location.X, absY);
coordinates.Y = 1.0f - ScaleTexCoord(location.Z, absY);
}
}
else
{
if (location.Z > 0)
{
arrayIndex = PositiveZ;
coordinates.X = ScaleTexCoord(location.X, absZ);
coordinates.Y = 1.0f - ScaleTexCoord(location.Y, absZ);
}
else
{
arrayIndex = NegativeZ;
coordinates.X = ScaleTexCoord(-location.X, absZ);
coordinates.Y = 1.0f - ScaleTexCoord(location.Y, absZ);
}
}
}
/// <summary>
/// Converts a 3D vector to an array index and 2D texture coordinates.
/// </summary>
public static void GetCubeMapCoordinates(ref Number4 location,
out int arrayIndex, out Number4 coordinates)
{
var absX = Math.Abs(location.X);
var absY = Math.Abs(location.Y);
var absZ = Math.Abs(location.Z);
// Select cube face using greatest magnitude component.
// Then divide other components by that component,
// and scale to [0..1].
coordinates = new Number4();
if (absX > absY && absX > absZ)
{
if (location.X > 0)
{
arrayIndex = PositiveX;
coordinates.X = ScaleTexCoord(-location.Z, absX);
coordinates.Y = 1.0f - ScaleTexCoord(location.Y, absX);
}
else
{
arrayIndex = NegativeX;
coordinates.X = ScaleTexCoord(location.Z, absX);
coordinates.Y = 1.0f - ScaleTexCoord(location.Y, absX);
}
}
else if (absY > absX && absY > absZ)
{
if (location.Y > 0)
{
arrayIndex = PositiveY;
coordinates.X = ScaleTexCoord(location.X, absY);
coordinates.Y = 1.0f - ScaleTexCoord(-location.Z, absY);
}
else
{
arrayIndex = NegativeY;
coordinates.X = ScaleTexCoord(location.X, absY);
coordinates.Y = 1.0f - ScaleTexCoord(location.Z, absY);
}
}
else
{
if (location.Z > 0)
{
arrayIndex = PositiveZ;
coordinates.X = ScaleTexCoord(location.X, absZ);
coordinates.Y = 1.0f - ScaleTexCoord(location.Y, absZ);
}
else
{
arrayIndex = NegativeZ;
coordinates.X = ScaleTexCoord(-location.X, absZ);
coordinates.Y = 1.0f - ScaleTexCoord(location.Y, absZ);
}
}
}
public Number4 SampleGrad(
ITexture texture, SamplerState samplerState,
ref Number4 location,
ref Number4 ddx, ref Number4 ddy)
{
var lod = CalculateLevelOfDetail(texture, samplerState, ref ddx, ref ddy);
return(SampleLevel(texture, samplerState, ref location, lod));
}
public IrConstantOperand(long value)
{
Value = new Number4(
Number.FromInt((int)value),
Number.FromInt(0),
Number.FromInt(0),
Number.FromInt(0));
Type.VariableType = IrShaderVariableType.I32;
}
public override void Clear(float depth)
{
var color = new Number4(depth, 0, 0, 0);
foreach (var subresource in _subresources)
{
subresource.Clear(ref color);
}
}
/// <summary>
/// Component-wise square root.
/// </summary>
/// <param name="saturate">True to clamp the result to [0...1], otherwise false.</param>
/// <param name="src0">The components for which to take the square root.</param>
/// <returns>The results of the operation. dest = sqrt(src0).</returns>
public static Number4 Sqrt(bool saturate, ref Number4 src0)
{
return(new Number4
{
Number0 = Number.FromFloat((float)Math.Sqrt(src0.Number0.Float), saturate),
Number1 = Number.FromFloat((float)Math.Sqrt(src0.Number1.Float), saturate),
Number2 = Number.FromFloat((float)Math.Sqrt(src0.Number2.Float), saturate),
Number3 = Number.FromFloat((float)Math.Sqrt(src0.Number3.Float), saturate)
});
}
/// <summary>
/// Component-wise integer 2's complement.
/// </summary>
/// <remarks>
/// This instruction performs component-wise 2's complement of each 32-bit value in src0.
/// The 32-bit results are stored in dest.
/// </remarks>
/// <param name="src0">Contains the values for the operation.</param>
/// <returns>The result of the operation.</returns>
public static Number4 INeg(ref Number4 src0)
{
return(new Number4
{
Number0 = Number.FromInt(-src0.Number0.Int),
Number1 = Number.FromInt(-src0.Number1.Int),
Number2 = Number.FromInt(-src0.Number2.Int),
Number3 = Number.FromInt(-src0.Number3.Int)
});
}
/// <summary>
/// Component-wise shift right.
/// </summary>
/// <remarks>
/// This instruction performs a component-wise shift of each 32-bit value in src0
/// right by an unsigned integer bit count provided by the LSB 5 bits (0-31 range)
/// in src1.select_component, inserting 0. The 32-bit per component results are
/// placed in dest. The count is a scalar value applied to all components.
/// TODO: Check where shift amount comes from.
/// </remarks>
/// <param name="src0">Contains the values to be shifted.</param>
/// <param name="src1">Contains the shift amount.</param>
/// <returns>The result of the operation.</returns>
public static Number4 IShr(ref Number4 src0, ref Number4 src1)
{
return(new Number4
{
Number0 = Number.FromInt(src0.Number0.Int >> (int)src1.Number0.UInt),
Number1 = Number.FromInt(src0.Number1.Int >> (int)src1.Number0.UInt),
Number2 = Number.FromInt(src0.Number2.Int >> (int)src1.Number0.UInt),
Number3 = Number.FromInt(src0.Number3.Int >> (int)src1.Number0.UInt)
});
}
/// <summary>
/// Component-wise vector floating point less-than comparison.
/// </summary>
/// <remarks>
/// This instruction performs the float comparison (src0 < src1) for each component,
/// and writes the result to dest.
/// If the comparison is true, then 0xFFFFFFFF is returned for that component.
/// Otherwise 0x0000000 is returned.
/// </remarks>
/// <param name="src0">The value to compare to src1.</param>
/// <param name="src1">The value to compare to src0.</param>
/// <returns>The result of the operation.</returns>
public static Number4 Lt(ref Number4 src0, ref Number4 src1)
{
return(new Number4
{
Number0 = GetCompareResult(src0.Number0.Float < src1.Number0.Float),
Number1 = GetCompareResult(src0.Number1.Float < src1.Number1.Float),
Number2 = GetCompareResult(src0.Number2.Float < src1.Number2.Float),
Number3 = GetCompareResult(src0.Number3.Float < src1.Number3.Float),
});
}
/// <summary>
/// Component-wise multiply and add.
/// </summary>
/// <param name="saturate">True to clamp the result to [0...1], otherwise false.</param>
/// <param name="src0">The multiplicand.</param>
/// <param name="src1">The multiplier.</param>
/// <param name="src2">The addend.</param>
/// <returns>The result of the operation. dest = src0 * src1 + src2.</returns>
public static Number4 Mad(bool saturate, ref Number4 src0, ref Number4 src1, ref Number4 src2)
{
return(new Number4
{
Number0 = Number.FromFloat((src0.Number0.Float * src1.Number0.Float) + src2.Number0.Float, saturate),
Number1 = Number.FromFloat((src0.Number1.Float * src1.Number0.Float) + src2.Number1.Float, saturate),
Number2 = Number.FromFloat((src0.Number2.Float * src1.Number0.Float) + src2.Number2.Float, saturate),
Number3 = Number.FromFloat((src0.Number3.Float * src1.Number0.Float) + src2.Number3.Float, saturate)
});
}
/// <summary>
/// Component-wise divide.
/// </summary>
/// <param name="saturate">True to clamp the result to [0...1], otherwise false.</param>
/// <param name="src0">The dividend.</param>
/// <param name="src1">The divisor.</param>
/// <returns>The result of the operation. dest = src / src1.</returns>
public static Number4 Div(bool saturate, ref Number4 src0, ref Number4 src1)
{
return(new Number4
{
Number0 = Number.FromFloat(src0.Number0.Float / src1.Number0.Float, saturate),
Number1 = Number.FromFloat(src0.Number1.Float / src1.Number1.Float, saturate),
Number2 = Number.FromFloat(src0.Number2.Float / src1.Number2.Float, saturate),
Number3 = Number.FromFloat(src0.Number3.Float / src1.Number3.Float, saturate)
});
}
/// <summary>
/// Floating-point round to integral float.
/// </summary>
/// <remarks>
/// This instruction performs a component-wise floating-point round of the values in src0,
/// writing integral floating-point values to dest.
///
/// round_z rounds toward zero.
/// </remarks>
/// <param name="saturate">True to clamp the result to [0...1], otherwise false.</param>
/// <param name="src0">The components in the operation.</param>
/// <returns>The result of the operation.</returns>
public static Number4 RoundZ(bool saturate, ref Number4 src0)
{
return(new Number4
{
Number0 = Number.FromFloat(RoundZ(src0.Number0.Float), saturate),
Number1 = Number.FromFloat(RoundZ(src0.Number1.Float), saturate),
Number2 = Number.FromFloat(RoundZ(src0.Number2.Float), saturate),
Number3 = Number.FromFloat(RoundZ(src0.Number3.Float), saturate)
});
}
/// <summary>
/// Component-wise bitwise XOR.
/// </summary>
/// <param name="src0">The components to XOR with src1.</param>
/// <param name="src1">The components to XOR with src0.</param>
/// <returns>The result of the operation. dest = src0 | src1.</returns>
public static Number4 Xor(ref Number4 src0, ref Number4 src1)
{
return(new Number4
{
Number0 = Number.FromUInt(src0.Number0.UInt | src1.Number0.UInt),
Number1 = Number.FromUInt(src0.Number1.UInt | src1.Number1.UInt),
Number2 = Number.FromUInt(src0.Number2.UInt | src1.Number2.UInt),
Number3 = Number.FromUInt(src0.Number3.UInt | src1.Number3.UInt)
});
}
/// <summary>
/// Component-wise divide.
/// </summary>
/// <param name="saturate">True to clamp the result to [0...1], otherwise false.</param>
/// <param name="src0">The dividend.</param>
/// <param name="src1">The divisor.</param>
/// <returns>The result of the operation. dest = src / src1.</returns>
public static Number4 Div(bool saturate, ref Number4 src0, ref Number4 src1)
{
return new Number4
{
Number0 = Number.FromFloat(src0.Number0.Float / src1.Number0.Float, saturate),
Number1 = Number.FromFloat(src0.Number1.Float / src1.Number1.Float, saturate),
Number2 = Number.FromFloat(src0.Number2.Float / src1.Number2.Float, saturate),
Number3 = Number.FromFloat(src0.Number3.Float / src1.Number3.Float, saturate)
};
}
/// <summary>
/// Component-wise bitwise AND.
/// </summary>
/// <remarks>
/// Component-wise logical AND of each pair of 32-bit values from
/// <paramref name="src0"/> and <paramref name="src1"/>.
/// </remarks>
/// <param name="src0">The 32-bit value to AND with src1.</param>
/// <param name="src1">The 32-bit value to AND with src0.</param>
/// <returns>The result of the operation. dest = src0 & src1.</returns>
public static Number4 And(ref Number4 src0, ref Number4 src1)
{
return new Number4
{
Number0 = Number.FromUInt(src0.Number0.UInt & src1.Number0.UInt),
Number1 = Number.FromUInt(src0.Number1.UInt & src1.Number1.UInt),
Number2 = Number.FromUInt(src0.Number2.UInt & src1.Number2.UInt),
Number3 = Number.FromUInt(src0.Number3.UInt & src1.Number3.UInt)
};
}
/// <summary>
/// Component-wise unsigned integer to floating point conversion.
/// </summary>
/// <remarks>
/// <paramref name="src0"/> must contain an unsigned 32-bit integer 4-tuple.
/// After the instruction executes, dest will contain a floating-point 4-tuple.
/// The conversion is performed per-component.
/// </remarks>
/// <param name="src0">The components to convert.</param>
/// <returns>The result of the operation.</returns>
public static Number4 UtoF(ref Number4 src0)
{
return(new Number4
{
Number0 = Number.FromFloat(Convert.ToSingle(src0.Number0.UInt)),
Number1 = Number.FromFloat(Convert.ToSingle(src0.Number1.UInt)),
Number2 = Number.FromFloat(Convert.ToSingle(src0.Number2.UInt)),
Number3 = Number.FromFloat(Convert.ToSingle(src0.Number3.UInt))
});
}
public Pixel(int x, int y)
{
Vertices = null;
X = x;
Y = y;
Color = new Number4();
Samples = new Samples();
PrimitiveID = 0;
RenderTargetArrayIndex = 0;
}
protected Number4[] GetShaderOutputs(int contextIndex)
{
var outputs = new Number4[_outputParametersCount];
for (ushort i = 0; i < outputs.Length; i++)
{
outputs[i] = _virtualMachine.GetOutputRegisterValue(contextIndex, i);
}
return(outputs);
}
protected override void GetMipMapAndTransformedCoordinates(
ITexture texture, ref Number4 location,
int level, out ITextureMipMap mipMap,
out Number4 textureCoordinates)
{
mipMap = texture.GetMipMap(0, level);
textureCoordinates = new Number4(
location.Float0 * mipMap.Width,
location.Float1 * mipMap.Height,
0, 0);
}
public static Number4 ApplyOperandSelectionMode(Number4 value, Operand operand)
{
switch (operand.SelectionMode)
{
case Operand4ComponentSelectionMode.Swizzle:
case Operand4ComponentSelectionMode.Select1:
return Number4.Swizzle(value, operand.Swizzles);
default:
throw new ArgumentOutOfRangeException();
}
}
private static bool TestCondition(ref Number4 number, InstructionTestBoolean testBoolean)
{
switch (testBoolean)
{
case InstructionTestBoolean.Zero:
return number.AllZero;
case InstructionTestBoolean.NonZero:
return number.AnyNonZero;
default:
throw new ArgumentOutOfRangeException("testBoolean");
}
}
protected override void GetMipMapAndTransformedCoordinates(
ITexture texture, ref Number4 location,
int level, out ITextureMipMap mipMap,
out Number4 textureCoordinates)
{
var arraySlice = MathUtility.Round(location.Float2);
mipMap = texture.GetMipMap(arraySlice, level);
textureCoordinates = new Number4(
location.Float0 * mipMap.Width,
location.Float1 * mipMap.Height,
0, 0);
}
protected override void GetMipMapAndTransformedCoordinates(
ITexture texture, ref Number4 location,
int level, out ITextureMipMap mipMap,
out Number4 textureCoordinates)
{
int arrayIndex;
CubeMapUtility.GetCubeMapCoordinates(ref location,
out arrayIndex, out textureCoordinates);
mipMap = texture.GetMipMap(arrayIndex, level);
textureCoordinates.X *= mipMap.Width;
textureCoordinates.Y *= mipMap.Height;
}
public static Number4 ApplyOperandModifier(Number4 value, NumberType numberType, OperandModifier modifier)
{
switch (modifier)
{
case OperandModifier.None:
return value;
case OperandModifier.Neg:
return Number4.Negate(value, numberType);
case OperandModifier.Abs:
return Number4.Abs(value, numberType);
case OperandModifier.AbsNeg:
return Number4.Negate(Number4.Abs(value, numberType), numberType);
default:
throw new ArgumentOutOfRangeException("modifier");
}
}
public void GetCubeMapCoordinatesWorksCorrectly(
float x, float y, float z,
int expectedArrayIndex,
float expectedS, float expectedT)
{
// Act.
var location = new Number4(x, y, z, 0.0f);
int arrayIndex; Number4 coordinates;
CubeMapUtility.GetCubeMapCoordinates(ref location,
out arrayIndex, out coordinates);
// Assert.
Assert.That(arrayIndex, Is.EqualTo(expectedArrayIndex));
Assert.That(coordinates.X, Is.EqualTo(expectedS));
Assert.That(coordinates.Y, Is.EqualTo(expectedT));
}
private Number4 GetFilteredColor(
ITexture texture, SamplerState samplerState, bool minifying, int level,
ref Number4 location)
{
var clampedLevel = MathUtility.Clamp(level, 0, texture.MipMapCount - 1);
ITextureMipMap mipMap;
Number4 texCoords;
GetMipMapAndTransformedCoordinates(
texture, ref location, clampedLevel,
out mipMap, out texCoords);
// Minifying
if (minifying)
switch (samplerState.Filter)
{
case Filter.MinMagMipPoint:
case Filter.MinMagPointMipLinear:
case Filter.MinPointMagLinearMipPoint:
case Filter.MinPointMagMipLinear:
return GetNearestNeighbor(samplerState, mipMap, ref texCoords);
case Filter.MinLinearMagMipPoint:
case Filter.MinLinearMagPointMipLinear:
case Filter.MinMagLinearMipPoint:
case Filter.MinMagMipLinear:
return GetLinear(samplerState, mipMap, ref texCoords);
default:
throw new NotSupportedException();
}
// Magnifying
switch (samplerState.Filter)
{
case Filter.MinLinearMagMipPoint:
case Filter.MinLinearMagPointMipLinear:
case Filter.MinMagMipPoint:
case Filter.MinMagPointMipLinear:
return GetNearestNeighbor(samplerState, mipMap, ref texCoords);
case Filter.MinMagLinearMipPoint:
case Filter.MinMagMipLinear:
case Filter.MinPointMagLinearMipPoint:
case Filter.MinPointMagMipLinear:
return GetLinear(samplerState, mipMap, ref texCoords);
default:
throw new NotSupportedException();
}
}
public ExecutionContext(VirtualMachine virtualMachine, int index, RequiredRegisters requiredRegisters)
{
_virtualMachine = virtualMachine;
Index = index;
Inputs = new Number4[requiredRegisters.NumPrimitives][];
for (int i = 0; i < requiredRegisters.NumPrimitives; i++)
Inputs[i] = new Number4[requiredRegisters.Inputs];
Outputs = new Number4[requiredRegisters.Outputs];
Temps = new Number4[requiredRegisters.Temps];
IndexableTemps = new Number4[requiredRegisters.IndexableTemps.Count][];
for (int i = 0; i < requiredRegisters.IndexableTemps.Count; i++)
IndexableTemps[i] = new Number4[requiredRegisters.IndexableTemps[i]];
}
public override float CalculateLevelOfDetail(
ITexture texture, SamplerState samplerState,
ref Number4 ddx, ref Number4 ddy)
{
var mostDetailedMipMap = texture.GetMipMap(0, 0);
int width = mostDetailedMipMap.Width;
int height = mostDetailedMipMap.Height;
float xBound2 = width * width;
float yBound2 = height * height;
float dudx2 = ddx.Float0 * ddx.Float0 * xBound2;
float dvdx2 = ddx.Float1 * ddx.Float1 * yBound2;
float dudy2 = ddy.Float0 * ddy.Float0 * xBound2;
float dvdy2 = ddy.Float1 * ddy.Float1 * yBound2;
// Proportional to the amount of a texel on display in a single pixel
float pixelSizeTexelRatio2 = Math.Max(dudx2 + dvdx2, dudy2 + dvdy2);
// Uses formula for p410 of Essential Mathematics for Games and Interactive Applications
float result = 0.5f * MathUtility.Log2(pixelSizeTexelRatio2);
// Clamp to >= 0.
return Math.Max(result, 0.0f);
}
protected abstract Number4 GetLinear(
SamplerState samplerState, ITextureMipMap mipMap,
ref Number4 texCoords);
public abstract float CalculateLevelOfDetail(
ITexture texture, SamplerState samplerState,
ref Number4 ddx, ref Number4 ddy);
protected abstract Number4 GetNearestNeighbor(
SamplerState samplerState, ITextureMipMap mipMap,
ref Number4 texCoords);
/// <summary>
/// Component-wise square root.
/// </summary>
/// <param name="saturate">True to clamp the result to [0...1], otherwise false.</param>
/// <param name="src0">The components for which to take the square root.</param>
/// <returns>The results of the operation. dest = sqrt(src0).</returns>
public static Number4 Sqrt(bool saturate, ref Number4 src0)
{
return new Number4
{
Number0 = Number.FromFloat((float) Math.Sqrt(src0.Number0.Float), saturate),
Number1 = Number.FromFloat((float) Math.Sqrt(src0.Number1.Float), saturate),
Number2 = Number.FromFloat((float) Math.Sqrt(src0.Number2.Float), saturate),
Number3 = Number.FromFloat((float) Math.Sqrt(src0.Number3.Float), saturate)
};
}
protected abstract void GetMipMapAndTransformedCoordinates(
ITexture texture, ref Number4 location, int level,
out ITextureMipMap mipMap,
out Number4 textureCoordinates);
public Number4 GetData(ref Number4 coords)
{
return _data;
}
public void SetInputRegisterValue(int index0, int index1, ref Number4 value)
{
Inputs[index0][index1] = value;
}
/// <summary>
/// Component-wise unsigned integer to floating point conversion.
/// </summary>
/// <remarks>
/// <paramref name="src0"/> must contain an unsigned 32-bit integer 4-tuple.
/// After the instruction executes, dest will contain a floating-point 4-tuple.
/// The conversion is performed per-component.
/// </remarks>
/// <param name="src0">The components to convert.</param>
/// <returns>The result of the operation.</returns>
public static Number4 UtoF(ref Number4 src0)
{
return new Number4
{
Number0 = Number.FromFloat(Convert.ToSingle(src0.Number0.UInt)),
Number1 = Number.FromFloat(Convert.ToSingle(src0.Number1.UInt)),
Number2 = Number.FromFloat(Convert.ToSingle(src0.Number2.UInt)),
Number3 = Number.FromFloat(Convert.ToSingle(src0.Number3.UInt))
};
}
public FakeTextureMipMap(Number4 data)
{
_data = data;
}
/// <summary>
/// 2-dimensional vector dot-product of components rg, POS-swizzle.
/// </summary>
/// <param name="saturate">True to clamp the result to [0...1], otherwise false.</param>
/// <param name="src0">The components in the operation.</param>
/// <param name="src1">The components in the operation.</param>
/// <returns>
/// The result of the operation.
/// <example>dest = src0.r * src1.r + src0.g * src1.g</example>
/// </returns>
public static Number Dp2(bool saturate, ref Number4 src0, ref Number4 src1)
{
return Number.FromFloat(
src0.Number0.Float * src1.Number0.Float
+ src0.Number1.Float * src1.Number1.Float,
saturate);
}
