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Julius Werner 96b00a50f1 libpayload: Add simple 32.32 fixed-point math API 
struct fraction is slooooooooooow. This patch adds a simple 64-bit
(32-bits integral, 32-bits fractional) fixed-point math API that is
*much* faster (observed roughly 5x speed-up) when doing intensive
graphics operations. It is optimized for speed over accuracy so some
operations may lose a bit more precision than expected, but overall it's
still plenty of bits for most use cases.

Also includes support for basic trigonometric functions with a small
lookup table.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: Id0f9c23980e36ce0ac0b7c5cd0bc66153bca1fd0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42993
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
 		2020-07-09 00:32:11 +00:00
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arm/arch treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
arm64/arch treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
arpa treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
pci treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
storage treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
sys treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
udc treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
usb libpayload: drivers/usb: add a USB pre-poll hook 2020-06-06 01:49:52 +00:00
x86/arch treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
archive.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
assert.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
cbfs.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
cbfs_core.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
cbfs_ram.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
cbgfx.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
compiler.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
coreboot_tables.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
ctype.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
die.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
endian.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
errno.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
exception.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
fmap_serialized.h
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fpmath.h libpayload: Add simple 32.32 fixed-point math API 2020-07-09 00:32:11 +00:00
gdb.h
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getopt.h
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inttypes.h
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ipchksum.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
kconfig.h
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keycodes.h
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libpayload.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
limits.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
lz4.h
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lzma.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
malloc.h
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multiboot_tables.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
panel.h
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pci.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
queue.h
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stdarg.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
stddef.h
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stdint.h libpayload: Fix definitions of minimum integer values 2020-05-18 07:34:55 +00:00
stdio.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
stdlib.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
string.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
strings.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
sysinfo.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
term.h
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time.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
unistd.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
video_console.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00