coffee/libyuv
1
0
Fork 0
mirror of https://chromium.googlesource.com/libyuv/libyuv synced 2025-12-08 01:36:47 +08:00
Code Issues Packages Projects Releases Wiki Activity
1,849 Commits 3 Branches 0 Tags BSD-3-Clause 60 MiB
C++ 95.5%
C 2.2%
Python 1.6%
CMake 0.3%
Starlark 0.2%
Other 0.1%
Go to file
Frank Barchard 7bffe5e1c5 lint warning fixes for CpuID 
The CpuId function is a wrapper for the intrinsic, or
implemented with inline if unavailable.  It had been
using uint32, but the intrinsics use int, so it was causing
casting and lint warnings.  This change makes the internal
implementation use int.

Casting was also done for xgetbv, and the cast is simply
removed, and is not causing a build error.

MipCpuCaps was doing strlen to check for white space after the
instruction set.  Arm also does this but with a hard coded offset.
This was causing a cast from size_t to int, which produced a lint
warning.  The change removes the white space detect.
In theory the code could be used to detect SSE vs SSE2, and it would
need to check SSE is followed by a space or end of line.  But this
code is only used on Arm and Mips, where there there is one form
of SIMD detected.  e.g. MSA for mips.  If a new instruction set is
added with a similar name, the write space check could be reintroduced.
But its more likely the code can be rewritten to use a better form
of detection by then. Or remove detection and require the instructions

BUG=libyuv:641
TEST=try bots build on all platforms without error and lint is clean

Change-Id: I9f55f8e57bba0f78571bdddbe63b945dea3e8809
Reviewed-on: https://chromium-review.googlesource.com/514524
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: Cheng Wang <wangcheng@google.com>
Reviewed-by: Wan-Teh Chang <wtc@chromium.org>
2017-05-25 22:00:17 +00:00
build_overrides Use DEPS for all dependencies + add PRESUBMIT.py 2017-02-03 11:36:53 +00:00
docs Rename convert to yuvconvert to avoid name clash with linux util 2017-04-06 18:58:42 +00:00
include lint warning fixes for CpuID 2017-05-25 22:00:17 +00:00
infra/config CQ config: add gerrit CQAbility verifier. 2017-02-27 11:55:04 +00:00
source lint warning fixes for CpuID 2017-05-25 22:00:17 +00:00
tools_libyuv Update autoroller after FromImpl was removed from depot tools 2017-05-25 06:59:25 +00:00
unit_test lint warning fixes for CpuID 2017-05-25 22:00:17 +00:00
util lint warning fixes for CpuID 2017-05-25 22:00:17 +00:00
.clang-format clang-format libyuv 2016-11-07 17:37:23 -08:00
.gitignore Rename convert to yuvconvert to avoid name clash with linux util 2017-04-06 18:58:42 +00:00
.gn Add GN files that need exec_script to list for win64 clang-cl 2016-10-12 12:46:22 -07:00
all.gyp Android support 2013-11-21 19:57:10 +00:00
Android.mk Fix data races in libyuv::TestCpuFlag(). 2017-05-24 02:09:03 +00:00
AUTHORS Adding AUTHORS file to libyuv 2011-11-01 20:44:21 +00:00
BUILD.gn Fix data races in libyuv::TestCpuFlag(). 2017-05-24 02:09:03 +00:00
cleanup_links.py Use DEPS for all dependencies + add PRESUBMIT.py 2017-02-03 11:36:53 +00:00
CM_linux_packages.cmake Add installer builds to cmake for linux 2017-01-26 23:05:17 +00:00
CMakeLists.txt Rename convert to yuvconvert to avoid name clash with linux util 2017-04-06 18:58:42 +00:00
codereview.settings Make Gerrit the default for libyuv code reviews 2017-01-24 18:34:48 +00:00
DEPS Roll chromium_revision da7cc8ca4c..ce95e5d83f (465147:465389) 2017-04-18 22:40:59 +00:00
download_vs_toolchain.py Roll chromium_revision 260824:262938 + fix binutils. Since it's not possible to have platform-specific hooks executing, binutils must be downloaded for all platforms in order for the download.py hook to execute properly on non-unix platforms. 2014-04-11 23:40:41 +00:00
gyp_libyuv Skip running GYP if GYP_CHROMIUM_NO_ACTION is set in environment 2016-04-08 14:01:29 +02:00
gyp_libyuv.py Use DEPS for all dependencies + add PRESUBMIT.py 2017-02-03 11:36:53 +00:00
libyuv_nacl.gyp NaCl/GYP: remove references to prep_toolchain from libyuv. prep_toolchain is now a no-op. 2015-04-22 17:42:21 +00:00
libyuv_test.gyp Fix data races in libyuv::TestCpuFlag(). 2017-05-24 02:09:03 +00:00
libyuv.gni Add MIPS SIMD Arch (MSA) optimized MirrorRow function 2016-09-22 16:12:22 -07:00
libyuv.gyp Rename mips source files to dspr2. 2017-01-27 23:11:43 +00:00
libyuv.gypi Rename mips source files to dspr2. 2017-01-27 23:11:43 +00:00
LICENSE Update Copyright notice to follow new chromium conventions. 2012-08-08 19:04:24 +00:00
LICENSE_THIRD_PARTY README.chromium license field for WebView and LICENSE_THIRD_PARTY to show files with special licenses. 2013-04-24 00:12:28 +00:00
linux.mk Rename mips source files to dspr2. 2017-01-27 23:11:43 +00:00
OWNERS Add new OWNERS and remove drover.properties. 2016-02-16 19:53:11 +01:00
PATENTS LibYuv: Adding PATENT and LICENSE files 2011-10-25 16:15:49 +00:00
PRESUBMIT.py Use DEPS for all dependencies + add PRESUBMIT.py 2017-02-03 11:36:53 +00:00
public.mk Android.mk moved into libyuv to central support 2012-09-19 07:27:17 +00:00
pylintrc Use DEPS for all dependencies + add PRESUBMIT.py 2017-02-03 11:36:53 +00:00
README.chromium lint warning fixes for CpuID 2017-05-25 22:00:17 +00:00
README.md Docs: Fix broken links from README.md 2016-03-15 17:38:14 -07:00
winarm.mk Adds files and functions for rotate any, but does not hook them up to the caller. 2015-07-27 10:32:08 -07:00

README.md

libyuv is an open source project that includes YUV scaling and conversion functionality.

  • Scale YUV to prepare content for compression, with point, bilinear or box filter.
  • Convert to YUV from webcam formats.
  • Convert from YUV to formats for rendering/effects.
  • Rotate by 90/180/270 degrees to adjust for mobile devices in portrait mode.
  • Optimized for SSE2/SSSE3/AVX2 on x86/x64.
  • Optimized for Neon on Arm.
  • Optimized for DSP R2 on Mips.

Development

See [Getting started] 1 for instructions on how to get started developing.

You can also browse the [docs directory] 2 for more documentation.