# coding=utf-8
# Copyright (c) 2010, 2014 Intel Corporation

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""" Generate tests for builtin const equality tests """

from __future__ import print_function, division, absolute_import
import re
import os

from templates import template_file
from modules import utils

TEMPLATE = template_file(os.path.basename(os.path.splitext(__file__)[0]),
                         'template.shader_test.mako')

TEST_VECTORS = [
    ["vec2(3.0, 3.14)",
     "vec2(-6.0, 7.88)",
     "bvec2(false, false)"
    ],
    ["vec3(13.4, -0.9, 12.55)",
     "vec3(13.4, 12.0, -55.3)",
     "bvec3(true, false, false)"
    ],
    ["vec4(-2.0, 0.0, 0.123, -1000.5)",
     "vec4(-2.4, 0.0, 0.456, 12.5)",
     "bvec4(false, true, false, false)"
    ],
    ["ivec2(-8, 12)",
     "ivec2(-19, 12)",
     "bvec2(false, true)"
    ],
    ["ivec3(0, 8, 89)",
     "ivec3(4, -7, 33)",
     "bvec3(false, false, false)"
    ],
    ["ivec4(11, 1000, 1, -18)",
     "ivec4(55, 1000, -21, -17)",
     "bvec4(false, true, false, false)"
    ],
    ["bvec2(true, false)",
     "bvec2(true, true)",
     "bvec2(true, false)"
    ],
    ["bvec3(false, true, false)",
     "bvec3(false, false, true)",
     "bvec3(true, false, false)"
    ],
    ["bvec4(true, false, false, true)",
     "bvec4(true, true, false, false)",
     "bvec4(true, false, true, false)"
    ],
]


def main():
    """ Main function """
    dirname = os.path.join('spec', 'glsl-1.20', 'execution',
                           'built-in-functions')
    utils.safe_makedirs(dirname)

    for test_id, x in enumerate(TEST_VECTORS, start=2):
        # make equal tests
        name = os.path.join(
            dirname,
            "glsl-const-builtin-equal-{0:02d}.shader_test".format(test_id))

        print(name)

        with open(name, 'w') as f:
            f.write(TEMPLATE.render_unicode(
                func='equal', input=x[0:2], expected=x[2]))

        # make notEqual tests
        name = os.path.join(
            dirname,
            "glsl-const-builtin-notEqual-{0:02d}.shader_test".format(test_id))

        # When generating the notEqual tests, each of the values in the
        # expected result vector need to be inverted
        expected = re.sub("true", "FALSE", x[2])
        expected = re.sub("false", "TRUE", expected)
        expected = expected.lower()

        print(name)

        with open(name, 'w') as f:
            f.write(TEMPLATE.render_unicode(
                func='notEqual', input=x[0:2], expected=expected))


if __name__ == "__main__":
    main()