From: Peter Korsgaard Date: Sun, 11 Dec 2016 15:52:18 +0000 (+0100) Subject: jpeg-turbo: add simd support for powerpc cores with altivec X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=3031af7ea7f5730bb1d4d60b0ee3c854622fef9b;p=buildroot.git jpeg-turbo: add simd support for powerpc cores with altivec >From the 1.5-b1 release notes: Added full SIMD acceleration for PowerPC platforms using AltiVec VMX (128-bit SIMD) instructions. Although the performance of libjpeg-turbo on PowerPC was already good, due to the increased number of registers available to the compiler vs. x86, it was still possible to speed up compression by about 3-4x and decompression by about 2-2.5x (relative to libjpeg v6b) through the use of AltiVec instructions. Signed-off-by: Peter Korsgaard Signed-off-by: Thomas Petazzoni --- diff --git a/package/jpeg/Config.in b/package/jpeg/Config.in index 170e58c5d9..e2a3fd0e35 100644 --- a/package/jpeg/Config.in +++ b/package/jpeg/Config.in @@ -6,7 +6,8 @@ config BR2_PACKAGE_JPEG # 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 + default y if BR2_X86_CPU_HAS_MMX || BR2_ARM_CPU_HAS_NEON || \ + BR2_POWERPC_CPU_HAS_ALTIVEC if BR2_PACKAGE_JPEG