generated_tests/gen_shader_intel_conservative_rasterization.py

   1 # coding=utf-8
   2 #
   3 # Copyright (C) 2016 Intel Corporation
   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
  24 """Generate a set of tests to verify that layout qualifiers introduced
  25  by INTEL_conservative_rasterization are properly parsed.
  26
  27  This also verifies the interaction with ARB_post_depth_coverage.
  28
  29  This program outputs, to stdout, the name of each file it generates.
  30
  31 """
  32
  33 import os.path
  34 import sys
  35 from textwrap import dedent
  36
  37 from mako import exceptions
  38 from mako.template import Template
  39
  40 from modules import utils
  41
  42 def gen_header(status, gl_api, shader_stage):
  43     """
  44     Generate a GLSL program header.
  45
  46     Generate header code for INTEL_conservative_rasterization GLSL parser
  47     tests that are expected to give status as result.
  48     """
  49
  50     if shader_stage != 'frag':
  51         status = 'fail'
  52     print("%s - %s" % (shader_stage, status))
  53
  54     if gl_api == "gles":
  55         glsl_version = ("3.20 es", "320 es")
  56     else:
  57         glsl_version = ("4.20", "420")
  58
  59     return dedent("""
  60         /*
  61          * [config]
  62          * expect_result: {0}
  63          * glsl_version: {1}
  64          * require_extensions: GL_INTEL_conservative_rasterization
  65          * [end config]
  66          */
  67         #version {2}
  68         #extension GL_INTEL_conservative_rasterization : enable
  69     """.format(status, glsl_version[0], glsl_version[1]))
  70
  71
  72 def gen(name, src, tests):
  73     """
  74     Expand a source template for the provided list of test definitions.
  75
  76     Generate a GLSL parser test for each of the elements of the
  77     'tests' iterable, each of them should be a dictionary of
  78     definitions that will be used as environment to render the source
  79     template.
  80
  81     The file name of each test will be the concatenation of the 'name'
  82     argument with the 'name' item from the respective test dictionary.
  83     """
  84     template = Template(dedent(src))
  85
  86     for t in product([{'name': name}], tests):
  87         filename = os.path.join('spec',
  88                                 'intel_conservative_rasterization',
  89                                 'compiler',
  90                                 '{0}.{1}.{2}'.format(t['name'],
  91                                                      t['gl_api'],
  92                                                      t['shader_stage']))
  93         print(filename)
  94
  95         dirname = os.path.dirname(filename)
  96         utils.safe_makedirs(dirname)
  97
  98         with open(filename, 'w') as f:
  99             try:
 100                 f.write(template.render(header=gen_header, **t))
 101             except:
 102                 print(exceptions.text_error_template().render(), file=sys.stderr)
 103                 raise
 104
 105
 106 shader_stages = [
 107     {'shader_stage': 'frag'},
 108     {'shader_stage': 'vert'}
 109 ]
 110
 111
 112 gl_apis = [
 113     {'gl_api': 'gl'},
 114     {'gl_api': 'gles'}
 115 ]
 116
 117
 118 def product(ps, *qss):
 119     """
 120     Generate the cartesian product of a number of lists of dictionaries.
 121
 122     Each generated element will be the union of some combination of
 123     elements from the iterable arguments.  The resulting value of each
 124     'name' item will be the concatenation of names of the respective
 125     element combination separated with dashes.
 126     """
 127     for q in (product(*qss) if qss else [{}]):
 128         for p in ps:
 129             r = dict(p, **q)
 130             r['name'] = '-'.join(s['name'] for s in (p, q) if s.get('name'))
 131             yield r
 132
 133
 134 def main():
 135     """Main function."""
 136
 137
 138     #
 139     # Test inner_coverage layout qualifier.
 140     #
 141     gen('inner_coverage', """
 142         ${header('pass', gl_api, shader_stage)}
 143
 144         layout(inner_coverage) in;
 145
 146         void main()
 147         {
 148         }
 149     """, product(gl_apis, shader_stages))
 150
 151     #
 152     # Test depth_coverage layout qualifier.
 153     #
 154     gen('post_depth_coverage', """
 155         ${header('pass', gl_api, shader_stage)}
 156
 157         layout(post_depth_coverage) in;
 158
 159         void main()
 160         {
 161         }
 162     """, product(gl_apis, shader_stages))
 163
 164     #
 165     # Test depth_coverage layout qualifier.
 166     #
 167     gen('inner_post_depth_coverage', """
 168         ${header('fail', gl_api, shader_stage)}
 169
 170         layout(inner_coverage) in;
 171         layout(post_depth_coverage) in;
 172
 173         void main()
 174         {
 175         }
 176     """, product(gl_apis, shader_stages))
 177
 178 if __name__ == '__main__':
 179     main()