modules/gles2/scripts/gen-reserved_operators.py

   1 # -*- coding: utf-8 -*-
   2
   3 #-------------------------------------------------------------------------
   4 # drawElements Quality Program utilities
   5 # --------------------------------------
   6 #
   7 # Copyright 2015 The Android Open Source Project
   8 #
   9 # Licensed under the Apache License, Version 2.0 (the "License");
  10 # you may not use this file except in compliance with the License.
  11 # You may obtain a copy of the License at
  12 #
  13 #      http://www.apache.org/licenses/LICENSE-2.0
  14 #
  15 # Unless required by applicable law or agreed to in writing, software
  16 # distributed under the License is distributed on an "AS IS" BASIS,
  17 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18 # See the License for the specific language governing permissions and
  19 # limitations under the License.
  20 #
  21 #-------------------------------------------------------------------------
  22
  23 import sys
  24 from genutil import *
  25
  26 # Templates
  27
  28 reservedOperatorCaseTemplate = """
  29 case operator_${{NAME}}
  30         expect compile_fail
  31         values {}
  32
  33         both ""
  34                 precision mediump float;
  35                 precision mediump int;
  36
  37                 ${DECLARATIONS}
  38
  39                 void main()
  40                 {
  41                         ${SETUP}
  42                         int value = 100;
  43                         ${{OP}}
  44                         ${OUTPUT}
  45                 }
  46         ""
  47 end
  48 """[1:-1]
  49
  50 # Classes
  51
  52 class ReservedOperatorCase(ShaderCase):
  53         def __init__(self, op):
  54                 self.name               = op.name
  55                 if op.operator == "~":
  56                         self.operation = 'value = ~value;'
  57                 else:
  58                         self.operation  = 'value ' + op.operator + ' 1;'
  59
  60         def __str__(self):
  61                 params = {
  62                         "NAME": self.name,
  63                         "OP"  : self.operation
  64                 }
  65                 return fillTemplate(reservedOperatorCaseTemplate, params)
  66
  67
  68 class Operator():
  69         def __init__(self, operator, name):
  70                 self.operator   = operator
  71                 self.name               = name
  72
  73 # Declarations
  74
  75 RESERVED_OPERATORS = [
  76         Operator("%",   "modulo"),
  77         Operator("~",   "bitwise_not"),
  78         Operator("<<",  "bitwise_shift_left"),
  79         Operator(">>",  "bitwise_shift_right"),
  80         Operator("&",   "bitwise_and"),
  81         Operator("^",   "bitwise_xor"),
  82         Operator("|",   "bitwise_or"),
  83         Operator("%=",  "assign_modulo"),
  84         Operator("<<=", "assign_shift_left"),
  85         Operator(">>=", "assign_shift_right"),
  86         Operator("&=",  "assign_and"),
  87         Operator("^=",  "assign_xor"),
  88         Operator("|=",  "assign_or")
  89 ]
  90
  91 # Reserved operator usage cases
  92
  93 reservedOperatorCases = []
  94
  95 for operator in RESERVED_OPERATORS:
  96         reservedOperatorCases.append(ReservedOperatorCase(operator))            # Reserved operators
  97
  98 # Main program
  99
 100 if __name__ == "__main__":
 101         print "Generating shader case files."
 102         writeAllCases("reserved_operators.test",        reservedOperatorCases)