96b00a50f1
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> |
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| .. | ||
| Makefile.inc | ||
| args.c | ||
| console.c | ||
| coreboot.c | ||
| ctype.c | ||
| die.c | ||
| exec.c | ||
| fmap.c | ||
| fpmath.c | ||
| getopt_long.c | ||
| hexdump.c | ||
| ipchecksum.c | ||
| lib.c | ||
| libgcc.c | ||
| malloc.c | ||
| memory.c | ||
| printf.c | ||
| qsort.c | ||
| rand.c | ||
| readline.c | ||
| string.c | ||
| strlcpy.c | ||
| sysinfo.c | ||
| time.c | ||