3 * Copyright 2017 Google
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 from sys
import stdout
30 from mako
.template
import Template
36 p
= argparse
.ArgumentParser()
41 def get_rgbx_to_rgba_map(formats
):
42 names
= {fmt
.name
for fmt
in formats
}
45 if not fmt
.has_channel('r') or not fmt
.has_channel('x'):
48 # The condition above will still let MESA_FORMAT_R9G9B9E5_FLOAT
49 # through. We need to ensure it actually has an X in the name.
50 if not 'X' in fmt
.name
:
54 rgba_name
= rgbx_name
.replace("X", "A")
55 if rgba_name
not in names
:
58 yield rgbx_name
, rgba_name
60 TEMPLATE
= Template(COPYRIGHT
+ """
64 * If the format has an alpha channel, and there exists a non-alpha
65 * variant of the format with an identical bit layout, then return
66 * the non-alpha format. Otherwise return the original format.
70 * MESA_FORMAT_R8G8B8X8_UNORM -> MESA_FORMAT_R8G8B8A8_UNORM
71 * MESA_FORMAT_RGBX_UNORM16 -> MESA_FORMAT_RGBA_UNORM16
74 * MESA_FORMAT_R8G8B8A8_UNORM -> MESA_FORMAT_R8G8B8A8_UNORM
75 * MESA_FORMAT_Z_FLOAT32 -> MESA_FORMAT_Z_FLOAT32
78 _mesa_format_fallback_rgbx_to_rgba(mesa_format format)
81 %for rgbx, rgba in rgbx_to_rgba_map:
94 formats
= list(format_parser
.parse(pargs
.csv
))
97 'rgbx_to_rgba_map': list(get_rgbx_to_rgba_map(formats
)),
100 with
open(pargs
.out
, 'w') as f
:
101 f
.write(TEMPLATE
.render(**template_env
))
103 if __name__
== "__main__":