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Add Derivatives Instructions.

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FernandoS27 2021-04-17 03:15:43 +02:00 • committed by Rodrigo Locatti
parent da093a04fe
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46
include/sirit/sirit.h
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@ -823,6 +823,52 @@ public:
/// of the pixel specified by offset.
Id OpInterpolateAtOffset(Id result_type, Id interpolant, Id offset);
// Derivatives
/// Same result as either OpDPdxFine or OpDPdxCoarse on the input.
/// Selection of which one is based on external factors.
Id OpDPdx(Id result_type, Id operand);
/// Same result as either OpDPdyFine or OpDPdyCoarse on the input.
/// Selection of which one is based on external factors.
Id OpDPdy(Id result_type, Id operand);
/// Result is the same as computing the sum of the absolute values of OpDPdx and OpDPdy
/// on the input.
Id OpFwidth(Id result_type, Id operand);
/// Result is the partial derivative of the input with respect to the window x coordinate.
/// Uses local differencing based on the value of the input for the current fragment and
/// its immediate neighbor(s).
Id OpDPdxFine(Id result_type, Id operand);
/// Result is the partial derivative of the input with respect to the window y coordinate.
/// Uses local differencing based on the value of the input for the current fragment and
/// its immediate neighbor(s).
Id OpDPdyFine(Id result_type, Id operand);
/// Result is the same as computing the sum of the absolute values of OpDPdxFine and OpDPdyFine
/// on the input.
Id OpFwidthFine(Id result_type, Id operand);
/// Result is the partial derivative of the input with respect to the window x coordinate.
/// Uses local differencing based on the value of the input for the current fragment's
/// neighbors, and possibly, but not necessarily, includes the value of the input for the
/// current fragment. That is, over a given area, the implementation can compute x derivatives
/// in fewer unique locations than would be allowed for OpDPdxFine.
Id OpDPdxCoarse(Id result_type, Id operand);
/// Result is the partial derivative of the input with respect to the window y coordinate.
/// Uses local differencing based on the value of the input for the current fragment's
/// neighbors, and possibly, but not necessarily, includes the value of the input for the
/// current fragment. That is, over a given area, the implementation can compute y derivatives
/// in fewer unique locations than would be allowed for OpDPdyFine.
Id OpDPdyCoarse(Id result_type, Id operand);
/// Result is the same as computing the sum of the absolute values of OpDPdxCoarse and
/// OpDPdyCoarse on the input.
Id OpFwidthCoarse(Id result_type, Id operand);
// Image
/// Create a sampled image, containing both a sampler and an image.