kumquat-buildroot/package/jpeg/Config.in
Peter Korsgaard 6c5ff61a6a jpeg: rework jpeg-turbo simd support handling
In preperation for adding more architectures to the jpeg-turbo simd
handling, introduce a hidden BR2_PACKAGE_JPEG_SIMDS_SUPPORT symbol and use
that to enable simd support and default to jpeg-turbo, instead of open
coding it in both places.

While we are at it, reword the help text to be more useful.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2016-12-11 18:21:53 +01:00

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config BR2_PACKAGE_JPEG
bool "jpeg support"
help
Select the desired JPEG library provider.
# jpeg-turbo has simd support for some architectures
config BR2_PACKAGE_JPEG_SIMD_SUPPORT
bool
default y if BR2_X86_CPU_HAS_MMX || BR2_ARM_CPU_HAS_NEON
if BR2_PACKAGE_JPEG
choice
prompt "jpeg variant"
default BR2_PACKAGE_JPEG_TURBO if BR2_PACKAGE_JPEG_SIMD_SUPPORT
help
Select the normal libjpeg or libjpeg-turbo.
config BR2_PACKAGE_LIBJPEG
bool "jpeg"
select BR2_PACKAGE_HAS_JPEG
help
The ubiquitous C library for manipulating JPEG images.
http://www.ijg.org/
config BR2_PACKAGE_JPEG_TURBO
bool "jpeg-turbo"
select BR2_PACKAGE_HAS_JPEG
help
Libjpeg-turbo is a derivative of libjpeg that uses SIMD
instructions (MMX, SSE2, NEON) to accelerate baseline JPEG
compression and decompression on x86, x86-64, and ARM
systems.
http://www.libjpeg-turbo.org
endchoice
config BR2_PACKAGE_HAS_JPEG
bool
config BR2_PACKAGE_PROVIDES_JPEG
string
default "libjpeg" if BR2_PACKAGE_LIBJPEG
default "jpeg-turbo" if BR2_PACKAGE_JPEG_TURBO
endif