Alex Wells
03a31f506e
Added
template <int M00, int M01, int M02, int M03,
int M10, int M11, int M12, int M13,
int M20, int M21, int M22, int M23,
int M30, int M31, int M32, int M33, int DivisorT>
struct sfm::StaticMatrix44
to model a matrix whose elements are known at compile time. Internally it utilizes proxys instead of floats in order to optimize for special cases of 0, 1, -1 elements and not even generate math when possible. The StaticMatrix44 is used by wide_opspline.cpp to create specialized functions for each of the spline basis types. A dispatch function routes the compile time optimized spline or spline inverse routine.
Altered splineimpl.h to provide "int basis_type_of(StringParam basis_name)" to allow the batched implementation to map a string to spline enum value used as an index in the dispatch function to functions optimized for each type of spline basis (instead of generic 4x4 matrix implementation)
Added "T sfm::select_val(bool cond, const T left, const T right)" as alternative to the ternary operator which appeared to possibly take address of its arguments which prevented privatization of those variables when compiled inside a SIMD loop.
Added note to BatchedAnalysis implementation identifying that local variables scope is lost between .osl and .oso and when a function is inlined multiple times, its local variables could be treated as varying when they could have been uniform if somehow identified as a local variable by the Analyzer.
Enable BATCHED testing of:
spline-boundarybug
spline-derivbug
spline-nonuniformknots
spline
splineinverse-ident
splineinverse
Added new BATCHED_REGRESSION tests:
spline-reg
splineinverse-knots-ascend-reg
splineinverse-knots-descend-reg
Added sfm::Inverter to remove nested loop behavior of batched splineinverse as OIIO::invert has a loop which was called from inside the search interval loop, created a nested loop. Under SIMD/SIMT the nested loop could execute incoherently. Instead we choose to use the class sfm::Inverter to manage state between is_bracketed_by(min,max), meant to be called from the search interval loop, and bracketed_invert(min,max) meant to be called after exiting the search interval loop, avoiding a nested loop that could be executed at different interval's for each SIMD/SIMT lane/thread.
Signed-off-by: Alex M. Wells <alex.m.wells@intel.com>
8 lines
136 B
Plaintext
8 lines
136 B
Plaintext
#include "runspline.h"
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shader test_spline_c_float_c_floatarray (
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output float Fout = 0)
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{
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Fout = run_all_fsplines(0.5, 1.0);
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} |