1# 2# Copyright (C) 2019 Vasily Khoruzhick <anarsoul@gmail.com> 3# Copyright (C) 2021 Pavel Ondračka 4# 5# Permission is hereby granted, free of charge, to any person obtaining a 6# copy of this software and associated documentation files (the "Software"), 7# to deal in the Software without restriction, including without limitation 8# the rights to use, copy, modify, merge, publish, distribute, sublicense, 9# and/or sell copies of the Software, and to permit persons to whom the 10# Software is furnished to do so, subject to the following conditions: 11# 12# The above copyright notice and this permission notice (including the next 13# paragraph) shall be included in all copies or substantial portions of the 14# Software. 15# 16# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 22# IN THE SOFTWARE. 23 24import argparse 25import sys 26from math import pi 27 28# Transform input to range [-PI, PI]: 29# 30# y = frac(x / 2PI + 0.5) * 2PI - PI 31# 32transform_trig_input_vs_r500 = [ 33 (('fsin', 'a'), ('fsin', ('fadd', ('fmul', ('ffract', ('fadd', ('fmul', 'a', 1 / (2 * pi)) , 0.5)), 2 * pi), -pi))), 34 (('fcos', 'a'), ('fcos', ('fadd', ('fmul', ('ffract', ('fadd', ('fmul', 'a', 1 / (2 * pi)) , 0.5)), 2 * pi), -pi))), 35] 36 37# Transform input to range [-PI, PI]: 38# 39# y = frac(x / 2PI) 40# 41transform_trig_input_fs_r500 = [ 42 (('fsin', 'a'), ('fsin', ('ffract', ('fmul', 'a', 1 / (2 * pi))))), 43 (('fcos', 'a'), ('fcos', ('ffract', ('fmul', 'a', 1 / (2 * pi))))), 44] 45 46def main(): 47 parser = argparse.ArgumentParser() 48 parser.add_argument('-p', '--import-path', required=True) 49 parser.add_argument('output') 50 args = parser.parse_args() 51 sys.path.insert(0, args.import_path) 52 53 import nir_algebraic # pylint: disable=import-error 54 55 with open(args.output, 'w') as f: 56 f.write('#include "r300_vs.h"') 57 58 f.write(nir_algebraic.AlgebraicPass("r300_transform_vs_trig_input", 59 transform_trig_input_vs_r500).render()) 60 61 f.write(nir_algebraic.AlgebraicPass("r300_transform_fs_trig_input", 62 transform_trig_input_fs_r500).render()) 63 64 65if __name__ == '__main__': 66 main() 67