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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| .. | ||
| arm/arch | ||
| arm64/arch | ||
| arpa | ||
| pci | ||
| storage | ||
| sys | ||
| udc | ||
| usb | ||
| x86/arch | ||
| archive.h | ||
| assert.h | ||
| cbfs.h | ||
| cbfs_core.h | ||
| cbfs_ram.h | ||
| cbgfx.h | ||
| compiler.h | ||
| coreboot_tables.h | ||
| ctype.h | ||
| die.h | ||
| endian.h | ||
| errno.h | ||
| exception.h | ||
| fmap_serialized.h | ||
| fpmath.h | ||
| gdb.h | ||
| getopt.h | ||
| inttypes.h | ||
| ipchksum.h | ||
| kconfig.h | ||
| keycodes.h | ||
| libpayload.h | ||
| limits.h | ||
| lz4.h | ||
| lzma.h | ||
| malloc.h | ||
| multiboot_tables.h | ||
| panel.h | ||
| pci.h | ||
| queue.h | ||
| stdarg.h | ||
| stddef.h | ||
| stdint.h | ||
| stdio.h | ||
| stdlib.h | ||
| string.h | ||
| strings.h | ||
| sysinfo.h | ||
| term.h | ||
| time.h | ||
| unistd.h | ||
| video_console.h | ||