-#
-# Copyright 2017 Advanced Micro Devices, Inc.
-#
-# 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
-# on 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
-# THE AUTHOR(S) AND/OR THEIR 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.
-#
-"""
-Script that generates the mapping from Gallium PIPE_FORMAT_xxx to gfx10
-IMG_FORMAT_xxx enums.
-"""
-
-from __future__ import absolute_import, division, print_function, unicode_literals
-
-import json
-import mako.template
-import os
-import re
-import sys
-
-AMD_REGISTERS = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), "../../../amd/registers"))
-UTIL_FORMAT = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), "../../../util/format"))
-sys.path.extend([AMD_REGISTERS, UTIL_FORMAT])
-
-from regdb import Object, RegisterDatabase
-from u_format_parse import *
-
-# ----------------------------------------------------------------------------
-# Hard-coded mappings
-
-def hardcoded_format(hw_enum):
- return Object(img_format=hw_enum, flags=[])
-
-HARDCODED = {
- 'PIPE_FORMAT_Z32_FLOAT_S8X24_UINT': hardcoded_format('X24_8_32_FLOAT'),
- 'PIPE_FORMAT_Z24_UNORM_S8_UINT': hardcoded_format('8_24_UNORM'),
- 'PIPE_FORMAT_S8_UINT_Z24_UNORM': hardcoded_format('24_8_UNORM'),
- 'PIPE_FORMAT_Z32_UNORM': None,
- 'PIPE_FORMAT_Z16_UNORM_S8_UINT': None,
-
- 'PIPE_FORMAT_R9G9B9E5_FLOAT': hardcoded_format('5_9_9_9_FLOAT'),
- 'PIPE_FORMAT_R11G11B10_FLOAT': hardcoded_format('10_11_11_FLOAT'), # NOTE: full set of int/unorm/etc. exists
-
- 'PIPE_FORMAT_R8G8_B8G8_UNORM': hardcoded_format('GB_GR_UNORM'),
- 'PIPE_FORMAT_G8R8_B8R8_UNORM': hardcoded_format('GB_GR_UNORM'),
-
- 'PIPE_FORMAT_R8G8_R8B8_UNORM': hardcoded_format('BG_RG_UNORM'),
- 'PIPE_FORMAT_G8R8_G8B8_UNORM': hardcoded_format('BG_RG_UNORM'),
-
- # These mixed channel types are not supported natively
- 'PIPE_FORMAT_R8SG8SB8UX8U_NORM': None,
- 'PIPE_FORMAT_R10SG10SB10SA2U_NORM': None,
- 'PIPE_FORMAT_R5SG5SB6U_NORM': None,
-
- # Only R8G8_SRGB is supported, not L8A8_SRGB
- 'PIPE_FORMAT_L8A8_SRGB': None,
-
- # S3TC
- 'PIPE_FORMAT_DXT1_RGB': hardcoded_format('BC1_UNORM'),
- 'PIPE_FORMAT_DXT1_RGBA': hardcoded_format('BC1_UNORM'),
- 'PIPE_FORMAT_DXT1_SRGB': hardcoded_format('BC1_SRGB'),
- 'PIPE_FORMAT_DXT1_SRGBA': hardcoded_format('BC1_SRGB'),
- 'PIPE_FORMAT_DXT3_RGBA': hardcoded_format('BC2_UNORM'),
- 'PIPE_FORMAT_DXT3_SRGBA': hardcoded_format('BC2_SRGB'),
- 'PIPE_FORMAT_DXT5_RGBA': hardcoded_format('BC3_UNORM'),
- 'PIPE_FORMAT_DXT5_SRGBA': hardcoded_format('BC3_SRGB'),
-
- # RGTC
- 'PIPE_FORMAT_RGTC1_UNORM': hardcoded_format('BC4_UNORM'),
- 'PIPE_FORMAT_RGTC1_SNORM': hardcoded_format('BC4_SNORM'),
- 'PIPE_FORMAT_RGTC2_UNORM': hardcoded_format('BC5_UNORM'),
- 'PIPE_FORMAT_RGTC2_SNORM': hardcoded_format('BC5_SNORM'),
- 'PIPE_FORMAT_LATC1_UNORM': hardcoded_format('BC4_UNORM'),
- 'PIPE_FORMAT_LATC1_SNORM': hardcoded_format('BC4_SNORM'),
- 'PIPE_FORMAT_LATC2_UNORM': hardcoded_format('BC5_UNORM'),
- 'PIPE_FORMAT_LATC2_SNORM': hardcoded_format('BC5_SNORM'),
-
- # BPTC
- 'PIPE_FORMAT_BPTC_RGB_UFLOAT': hardcoded_format('BC6_UFLOAT'),
- 'PIPE_FORMAT_BPTC_RGB_FLOAT': hardcoded_format('BC6_SFLOAT'),
-
- 'PIPE_FORMAT_BPTC_RGBA_UNORM': hardcoded_format('BC7_UNORM'),
- 'PIPE_FORMAT_BPTC_SRGBA': hardcoded_format('BC7_SRGB'),
-}
-
-
-# ----------------------------------------------------------------------------
-# Main script
-
-header_template = mako.template.Template("""\
-// DO NOT EDIT -- AUTOMATICALLY GENERATED
-
-#define FMT(_img_format, ...) \
- { .img_format = V_008F0C_IMG_FORMAT_##_img_format, \
- ##__VA_ARGS__ }
-
-static const struct gfx10_format gfx10_format_table[PIPE_FORMAT_COUNT] = {
-% for pipe_format, args in formats:
- % if args is not None:
- [${pipe_format}] = FMT(${args}),
- % else:
-/* ${pipe_format} is not supported */
- % endif
-% endfor
-};
-""")
-
-class Gfx10Format(object):
- RE_plain_channel = re.compile(r'X?([0-9]+)')
-
- def __init__(self, enum_entry):
- self.img_format = enum_entry.name[11:]
- self.flags = getattr(enum_entry, 'flags', [])
-
- code = self.img_format.split('_')
-
- self.plain_chan_sizes = []
- for i, chan_code in enumerate(code):
- m = self.RE_plain_channel.match(chan_code)
- if m is None:
- break
- self.plain_chan_sizes.append(int(m.group(1)))
- # Keep the bit sizes in little-endian order
- self.plain_chan_sizes.reverse()
-
- self.code = code[i:]
-
-
-class Gfx10FormatMapping(object):
- def __init__(self, pipe_formats, gfx10_formats):
- self.pipe_formats = pipe_formats
- self.gfx10_formats = gfx10_formats
-
- self.plain_gfx10_formats = dict(
- (tuple(['_'.join(fmt.code)] + fmt.plain_chan_sizes), fmt)
- for fmt in gfx10_formats if fmt.plain_chan_sizes
- )
-
- def map(self, fmt):
- if fmt.layout == PLAIN:
- chan_type = set([chan.type for chan in fmt.le_channels if chan.type != VOID])
- chan_norm = set([chan.norm for chan in fmt.le_channels if chan.type != VOID])
- chan_pure = set([chan.pure for chan in fmt.le_channels if chan.type != VOID])
- if len(chan_type) > 1 or len(chan_norm) > 1 or len(chan_pure) > 1:
- print(('Format {fmt.name} has inconsistent channel types: ' +
- '{chan_type} {chan_norm} {chan_pure}')
- .format(**locals()),
- file=sys.stderr)
- return None
-
- chan_type = chan_type.pop()
- chan_norm = chan_norm.pop()
- chan_pure = chan_pure.pop()
- chan_sizes = [chan.size for chan in fmt.le_channels if chan.size != 0]
-
- extra_flags = []
-
- if fmt.colorspace == SRGB:
- assert chan_type == UNSIGNED and chan_norm
- num_format = 'SRGB'
- else:
- if chan_type == UNSIGNED:
- if chan_pure:
- num_format = 'UINT'
- elif chan_sizes[0] == 32:
- # Shader-based work-around for 32-bit non-pure-integer
- num_format = 'UINT'
- extra_flags.append('buffers_only')
- elif chan_norm:
- num_format = 'UNORM'
- else:
- num_format = 'USCALED'
- elif chan_type == SIGNED:
- if chan_pure:
- num_format = 'SINT'
- elif chan_sizes[0] == 32:
- # Shader-based work-around for 32-bit non-pure-integer
- num_format = 'SINT'
- extra_flags.append('buffers_only')
- elif chan_norm:
- num_format = 'SNORM'
- else:
- num_format = 'SSCALED'
- elif chan_type == FLOAT:
- num_format = 'FLOAT'
-
- if chan_sizes[0] == 64:
- # Shader-based work-around for doubles
- if len(chan_sizes) % 2 == 1:
- # 1 or 3 loads for 1 or 3 double channels
- chan_sizes = [32, 32]
- else:
- # 1 or 2 loads for 2 or 4 double channels
- chan_sizes = [32, 32, 32, 32]
- extra_flags.append('buffers_only')
- else:
- # Shader-based work-around
- assert chan_type == FIXED
- assert chan_sizes[0] == 32
- num_format = 'SINT'
- extra_flags.append('buffers_only')
-
- # These are not supported as render targets, so we don't support
- # them as images either.
- if (len(chan_sizes) == 3 and chan_sizes[0] in (8, 16, 32) and
- chan_sizes[0] == chan_sizes[1]):
- extra_flags.append('buffers_only')
- if chan_sizes[0] in (8, 16):
- # Shader-based work-around: one load per channel
- chan_sizes = [chan_sizes[0]]
-
- # Don't expose SRGB buffer formats
- if 'buffers_only' in extra_flags and fmt.colorspace == SRGB:
- return None
-
- # Don't support 4_4 because it's not supported as render targets
- # and it's useless in other cases.
- if len(chan_sizes) == 2 and chan_sizes[0] == 4:
- return None
-
- key = tuple([num_format] + chan_sizes)
- if key not in self.plain_gfx10_formats:
- return None
-
- gfx10_fmt = self.plain_gfx10_formats[key]
- return Object(
- img_format=gfx10_fmt.img_format,
- flags=gfx10_fmt.flags + extra_flags,
- )
-
- return None
-
-
-if __name__ == '__main__':
- pipe_formats = parse(sys.argv[1])
-
- with open(sys.argv[2], 'r') as filp:
- db = RegisterDatabase.from_json(json.load(filp))
-
- gfx10_formats = [Gfx10Format(entry) for entry in db.enum('IMG_FORMAT').entries]
-
- mapping = Gfx10FormatMapping(pipe_formats, gfx10_formats)
-
- formats = []
- for fmt in pipe_formats:
- if fmt.name in HARDCODED:
- obj = HARDCODED[fmt.name]
- else:
- obj = mapping.map(fmt)
-
- if obj is not None:
- args = obj.img_format
- if 'buffers_only' in obj.flags:
- args += ', .buffers_only = 1'
- else:
- args = None
- formats.append((fmt.name, args))
-
- print(header_template.render(formats=formats))
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