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