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mesa/src/util/format/u_format_table.py
Eric Anholt 4064a6cd20 util: Split the pack/unpack functions out of the format desc. 
This gives the compiler a chance to GC pack/unpack functions separate from
the format descriptions.  For drivers that use everything, this is
+10-20kb, while for libvulkan_intel it's -1.3MB.

Bug: https://bugs.chromium.org/p/chromium/issues/detail?id=1048434
Acked-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5826>
2020-08-12 13:13:39 -07:00

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from __future__ import print_function
CopyRight = '''
/**************************************************************************
*
* Copyright 2010 VMware, Inc.
* 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 VMWARE 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
from u_format_parse import *
import u_format_pack
def layout_map(layout):
return 'UTIL_FORMAT_LAYOUT_' + str(layout).upper()
def colorspace_map(colorspace):
return 'UTIL_FORMAT_COLORSPACE_' + str(colorspace).upper()
colorspace_channels_map = {
'rgb': ['r', 'g', 'b', 'a'],
'srgb': ['sr', 'sg', 'sb', 'a'],
'zs': ['z', 's'],
'yuv': ['y', 'u', 'v'],
}
type_map = {
VOID: "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 = {
SWIZZLE_X: "PIPE_SWIZZLE_X",
SWIZZLE_Y: "PIPE_SWIZZLE_Y",
SWIZZLE_Z: "PIPE_SWIZZLE_Z",
SWIZZLE_W: "PIPE_SWIZZLE_W",
SWIZZLE_0: "PIPE_SWIZZLE_0",
SWIZZLE_1: "PIPE_SWIZZLE_1",
SWIZZLE_NONE: "PIPE_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(CopyRight.strip())
print()
print('#include "u_format.h"')
print('#include "u_format_bptc.h"')
print('#include "u_format_s3tc.h"')
print('#include "u_format_rgtc.h"')
print('#include "u_format_latc.h"')
print('#include "u_format_etc.h"')
print()
u_format_pack.generate(formats)
def do_channel_array(channels, swizzles):
print(" {")
for i in range(4):
channel = channels[i]
if i < 3:
sep = ","
else:
sep = ""
if channel.size:
print(" {%s, %s, %s, %u, %u}%s\t/* %s = %s */" % (type_map[channel.type], bool_map(channel.norm), bool_map(channel.pure), channel.size, channel.shift, sep, "xyzw"[i], channel.name))
else:
print(" {0, 0, 0, 0, 0}%s" % (sep,))
print(" },")
def do_swizzle_array(channels, swizzles):
print(" {")
for i in range(4):
swizzle = swizzles[i]
if i < 3:
sep = ","
else:
sep = ""
try:
comment = colorspace_channels_map[format.colorspace][i]
except (KeyError, IndexError):
comment = 'ignored'
print(" %s%s\t/* %s */" % (swizzle_map[swizzle], sep, comment))
print(" },")
def generate_table_getter(type):
print("const struct util_format_%sdescription *" % type)
print("util_format_%sdescription(enum pipe_format format)" % type)
print("{")
print(" if (format >= PIPE_FORMAT_COUNT) {")
print(" return NULL;")
print(" }")
print()
print(" switch (format) {")
for format in formats:
print(" case %s:" % format.name)
print(" return &util_format_%s_%sdescription;" % (format.short_name(), type))
print(" default:")
print(" return NULL;")
print(" }")
print("}")
print()
for format in formats:
sn = format.short_name()
print('const struct util_format_description')
print('util_format_%s_description = {' % (sn,))
print(" %s," % (format.name,))
print(" \"%s\"," % (format.name,))
print(" \"%s\"," % (sn,))
print(" {%u, %u, %u, %u},\t/* block */" % (format.block_width, format.block_height, format.block_depth, format.block_size()))
print(" %s," % (layout_map(format.layout),))
print(" %u,\t/* nr_channels */" % (format.nr_channels(),))
print(" %s,\t/* is_array */" % (bool_map(format.is_array()),))
print(" %s,\t/* is_bitmask */" % (bool_map(format.is_bitmask()),))
print(" %s,\t/* is_mixed */" % (bool_map(format.is_mixed()),))
print(" %s,\t/* is_unorm */" % (bool_map(format.is_unorm()),))
print(" %s,\t/* is_snorm */" % (bool_map(format.is_snorm()),))
u_format_pack.print_channels(format, do_channel_array)
u_format_pack.print_channels(format, do_swizzle_array)
print(" %s," % (colorspace_map(format.colorspace),))
print("};")
print()
# We don't generate code for YUV formats, and many of the new ones lack pack/unpack
# functions for softpipe/llvmpipe.
noaccess_formats = [
'yv12',
'yv16',
'iyuv',
'nv12',
'nv16',
'nv21',
'p010',
'p012',
'p016',
'xyuv',
'ayuv',
'r8g8_r8b8_unorm',
'g8r8_b8r8_unorm',
'g8r8_g8b8_unorm',
'y8_u8_v8_422_unorm',
'y8_u8v8_422_unorm',
'y8_u8_v8_444_unorm',
'y16_u16_v16_420_unorm',
'y16_u16_v16_422_unorm',
'y16_u16v16_422_unorm',
'y16_u16_v16_444_unorm',
]
access = sn not in noaccess_formats
if format.layout in ('astc', 'atc', 'fxt1'):
access = False
if format.layout == 'etc' and sn != 'etc1_rgb8':
access = False
print('const struct util_format_pack_description')
print('util_format_%s_pack_description = {' % sn)
if format.colorspace != ZS and not format.is_pure_color() and access:
print(" .pack_rgba_8unorm = &util_format_%s_pack_rgba_8unorm," % sn)
print(" .pack_rgba_float = &util_format_%s_pack_rgba_float," % sn)
if format.has_depth():
print(" .pack_z_32unorm = &util_format_%s_pack_z_32unorm," % sn)
print(" .pack_z_float = &util_format_%s_pack_z_float," % sn)
if format.has_stencil():
print(" .pack_s_8uint = &util_format_%s_pack_s_8uint," % sn)
if format.is_pure_unsigned() or format.is_pure_signed():
print(" .pack_rgba_uint = &util_format_%s_pack_unsigned," % sn)
print(" .pack_rgba_sint = &util_format_%s_pack_signed," % sn)
print("};")
print()
print('const struct util_format_unpack_description')
print('util_format_%s_unpack_description = {' % sn)
if format.colorspace != ZS and not format.is_pure_color() and access:
print(" .unpack_rgba_8unorm = &util_format_%s_unpack_rgba_8unorm," % sn)
if format.layout == 's3tc' or format.layout == 'rgtc':
print(" .fetch_rgba_8unorm = &util_format_%s_fetch_rgba_8unorm," % sn)
print(" .unpack_rgba = &util_format_%s_unpack_rgba_float," % sn)
print(" .fetch_rgba_float = &util_format_%s_fetch_rgba_float," % sn)
if format.has_depth():
print(" .unpack_z_32unorm = &util_format_%s_unpack_z_32unorm," % sn)
print(" .unpack_z_float = &util_format_%s_unpack_z_float," % sn)
if format.has_stencil():
print(" .unpack_s_8uint = &util_format_%s_unpack_s_8uint," % sn)
if format.is_pure_unsigned():
print(" .unpack_rgba = &util_format_%s_unpack_unsigned," % sn)
print(" .fetch_rgba_uint = &util_format_%s_fetch_unsigned," % sn)
elif format.is_pure_signed():
print(" .unpack_rgba = &util_format_%s_unpack_signed," % sn)
print(" .fetch_rgba_sint = &util_format_%s_fetch_signed," % sn)
print("};")
print()
generate_table_getter("")
generate_table_getter("pack_")
generate_table_getter("unpack_")
def main():
formats = []
for arg in sys.argv[1:]:
formats.extend(parse(arg))
write_format_table(formats)
if __name__ == '__main__':
main()
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