Vinson Lee
95731b7ccc
Fix build error on CentOS 6.9 with Python 2.6.
GEN main/format_fallback.c
File "./main/format_fallback.py", line 42
names = {fmt.name for fmt in formats}
^
SyntaxError: invalid syntax
Fixes: a1983223d8 ("mesa: Add _mesa_format_fallback_rgbx_to_rgba() [v2]")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
105 lines
3.0 KiB
Python
105 lines
3.0 KiB
Python
COPYRIGHT = """\
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/*
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* Copyright 2017 Google
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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"""
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# stdlib
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import argparse
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from sys import stdout
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from mako.template import Template
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# local
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import format_parser
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def parse_args():
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p = argparse.ArgumentParser()
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p.add_argument("csv")
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p.add_argument("out")
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return p.parse_args()
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def get_rgbx_to_rgba_map(formats):
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names = set(fmt.name for fmt in formats)
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for fmt in formats:
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if not fmt.has_channel('r') or not fmt.has_channel('x'):
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continue
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# The condition above will still let MESA_FORMAT_R9G9B9E5_FLOAT
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# through. We need to ensure it actually has an X in the name.
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if not 'X' in fmt.name:
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continue
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rgbx_name = fmt.name
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rgba_name = rgbx_name.replace("X", "A")
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if rgba_name not in names:
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continue;
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yield rgbx_name, rgba_name
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TEMPLATE = Template(COPYRIGHT + """
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#include "formats.h"
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/**
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* If the format has an alpha channel, and there exists a non-alpha
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* variant of the format with an identical bit layout, then return
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* the non-alpha format. Otherwise return the original format.
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*
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* Examples:
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* Fallback exists:
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* MESA_FORMAT_R8G8B8X8_UNORM -> MESA_FORMAT_R8G8B8A8_UNORM
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* MESA_FORMAT_RGBX_UNORM16 -> MESA_FORMAT_RGBA_UNORM16
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*
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* No fallback:
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* MESA_FORMAT_R8G8B8A8_UNORM -> MESA_FORMAT_R8G8B8A8_UNORM
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* MESA_FORMAT_Z_FLOAT32 -> MESA_FORMAT_Z_FLOAT32
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*/
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mesa_format
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_mesa_format_fallback_rgbx_to_rgba(mesa_format format)
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{
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switch (format) {
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%for rgbx, rgba in rgbx_to_rgba_map:
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case ${rgbx}:
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return ${rgba};
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%endfor
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default:
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return format;
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}
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}
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""");
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def main():
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pargs = parse_args()
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formats = list(format_parser.parse(pargs.csv))
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template_env = {
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'rgbx_to_rgba_map': list(get_rgbx_to_rgba_map(formats)),
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}
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with open(pargs.out, 'w') as f:
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f.write(TEMPLATE.render(**template_env))
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if __name__ == "__main__":
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main()
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