diff options
Diffstat (limited to 'src/gallium/auxiliary/util/u_format_table.py')
| -rwxr-xr-x | src/gallium/auxiliary/util/u_format_table.py | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_format_table.py b/src/gallium/auxiliary/util/u_format_table.py new file mode 100755 index 00000000000..e94fbbecb37 --- /dev/null +++ b/src/gallium/auxiliary/util/u_format_table.py @@ -0,0 +1,212 @@ +#!/usr/bin/env python + +''' +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ +''' + + +import sys + + +UNSIGNED, SIGNED, FIXED, FLOAT = 'u', 's', 'h', 'f' + + +class Type: + + def __init__(self, kind, norm, size): + self.kind = kind + self.norm = norm + self.size = size + + def __str__(self): + s = str(self.kind) + if norm: + s += 'n' + s += str(self.size) + return s + + +SCALED, NORM, SRGB = 'scaled', 'norm', 'srgb' + + +class Format: + + def __init__(self, name, layout, block_width, block_height, in_types, out_swizzle, colorspace): + self.name = name + self.layout = layout + self.block_width = block_width + self.block_height = block_height + self.in_types = in_types + self.out_swizzle = out_swizzle + self.name = name + self.colorspace = colorspace + + def __str__(self): + return self.name + + def block_size(self): + size = 0 + for type in self.in_types: + size += type.size + return size + + +def parse(filename): + stream = open(filename) + formats = [] + for line in stream: + line = line.rstrip() + fields = [field.strip() for field in line.split(',')] + name = fields[0] + layout = fields[1] + block_width, block_height = map(int, fields[2:4]) + in_types = [] + for field in fields[4:8]: + if field: + kind = field[0] + if field[1] == 'n': + norm = True + size = int(field[2:]) + else: + norm = False + size = int(field[1:]) + else: + kind = '' + norm = False + size = 0 + in_type = Type(kind, norm, size) + in_types.append(in_type) + out_swizzle = fields[8] + colorspace = fields[9] + formats.append(Format(name, layout, block_width, block_height, in_types, out_swizzle, colorspace)) + return formats + + +def layout_map(layout): + return 'UTIL_FORMAT_LAYOUT_' + str(layout).upper() + + +layout_channels_map = { + 'rgba': 'rgba', + 'zs': 'zs', + 'yuv': ['y1', 'y2', 'u', 'v'], + 'dxt': [] +} + + +kind_map = { + '': "UTIL_FORMAT_TYPE_VOID", + 'x': "UTIL_FORMAT_TYPE_VOID", + UNSIGNED: "UTIL_FORMAT_TYPE_UNSIGNED", + SIGNED: "UTIL_FORMAT_TYPE_SIGNED", + FIXED: "UTIL_FORMAT_TYPE_FIXED", + FLOAT: "UTIL_FORMAT_TYPE_FLOAT", +} + + +def bool_map(value): + if value: + return "TRUE" + else: + return "FALSE" + + +swizzle_map = { + 'x': "UTIL_FORMAT_SWIZZLE_X", + 'y': "UTIL_FORMAT_SWIZZLE_Y", + 'z': "UTIL_FORMAT_SWIZZLE_Z", + 'w': "UTIL_FORMAT_SWIZZLE_W", + '0': "UTIL_FORMAT_SWIZZLE_0", + '1': "UTIL_FORMAT_SWIZZLE_1", + '_': "UTIL_FORMAT_SWIZZLE_NONE", +} + + +def write_format_table(formats): + print '/* This file is autogenerated by u_format_table.py from u_format.csv. Do not edit directly. */' + print + # This will print the copyright message on the top of this file + print __doc__.strip() + print + print '#include "u_format.h"' + print + print 'const struct util_format_description' + print 'util_format_description_table[] = ' + print "{" + for format in formats: + print " {" + print " %s," % (format.name,) + print " \"%s\"," % (format.name,) + print " {%u, %u, %u}, /* block */" % (format.block_width, format.block_height, format.block_size()) + print " %s," % (layout_map(format.layout),) + print " {" + for i in range(4): + type = format.in_types[i] + if i < 3: + sep = "," + else: + sep = "" + print " {%s, %s, %u}%s /* %s */" % (kind_map[type.kind], bool_map(type.norm), type.size, sep, "xyzw"[i]) + print " }," + print " {" + for i in range(4): + swizzle = format.out_swizzle[i] + if i < 3: + sep = "," + else: + sep = "" + try: + comment = layout_channels_map[format.layout][i] + except: + comment = 'ignored' + print " %s%s /* %s */" % (swizzle_map[swizzle], sep, comment) + print " }," + print " UTIL_FORMAT_COLORSPACE_RGB," + print " }," + print " {" + print " PIPE_FORMAT_NONE," + print " \"PIPE_FORMAT_NONE\"," + print " {0, 0, 0}," + print " 0," + print " {{0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0}}," + print " {0, 0, 0, 0}," + print " 0" + print " }," + print "};" + + +def main(): + + formats = [] + for arg in sys.argv[1:]: + formats.extend(parse(arg)) + write_format_table(formats) + + +if __name__ == '__main__': + main() |