buildroot/package/jpeg, branch 2017.02

package/jpeg: better indentation

2016-12-11T20:07:52+00:00

Use easier-to-read layout; fix leading spaces. Signed-off-by: "Yann E. MORIN" Cc: Thomas Petazzoni Cc: Peter Korsgaard Signed-off-by: Peter Korsgaard

jpeg: fix typo introduced when fixing the indentation

2016-12-11T17:36:03+00:00

Signed-off-by: Thomas Petazzoni

jpeg-turbo: add simd support for aarch64

2016-12-11T17:23:21+00:00

>From the 1.5-b1 release notes: Added ARM 64-bit (ARMv8) NEON SIMD implementations of the commonly-used compression algorithms (including the slow integer forward DCT and h2v2 & h2v1 downsampling algorithms, which are not accelerated in the 32-bit NEON implementation.) This speeds up the compression of full-color JPEGs by about 75% on average on a Cavium ThunderX processor and by about 2-2.5x on average on Cortex-A53 and Cortex-A57 cores. Add it unconditionally for all aarch64 cores, as neon support is required for all "standard" ARMv8 implementations. If an ARMv8 implementation w/o NEON ever shows up, then we will need to add a BR2_AARCH64_CPU_HAS_NEON and handle it like ARM. Signed-off-by: Peter Korsgaard Signed-off-by: Thomas Petazzoni

jpeg-turbo: add simd support for powerpc cores with altivec

2016-12-11T17:23:01+00:00

>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

jpeg: rework jpeg-turbo simd support handling

2016-12-11T17:21:53+00:00

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 Signed-off-by: Thomas Petazzoni

package/jpeg: make it behave more like other virtual packages

2014-06-08T15:07:31+00:00

Currently, the virtual package jpeg is a special virtual package, as it offers a choice for its implementation, rather than letting the user enable them manually. In so doing, it defines its _HAS option as a 'def_bool y' rather than letting each implementation 'select' it. Since we are going to generate a list of virtual packages and their providers, this defeats the heuristic used to find providers. Coming with an alternate heuristic that also matches the jpeg package is quite complex, so better and easier to make it look more like any other virtual package. Signed-off-by: "Yann E. MORIN" Cc: Thomas Petazzoni Cc: Samuel Martin Reviewed-by: Samuel Martin Signed-off-by: Thomas Petazzoni

package/jpeg: convert to the virtual-package infrastructure

2014-04-05T17:21:11+00:00

Since this package is implemented via a choice rather than the usual separate-package providers, we only need BR2_PACKAGE_HAS_JPEG to be always defined when the 'jpeg' package is selected. Signed-off-by: "Yann E. MORIN" Cc: Eric Le Bihan Cc: Thomas Petazzoni Cc: Thomas De Schampheleire Cc: Mike Zick Reviewed-by: Samuel Martin Signed-off-by: Thomas Petazzoni

package/libjpeg: switch to package-defined providers

2013-12-25T17:21:44+00:00

For the underlying reasons, see previous patch, titled: package/opengl/libegl: switch to package-defined providers Signed-off-by: "Yann E. MORIN" Cc: Arnout Vandecappelle Cc: Thomas Petazzoni Cc: Peter Korsgaard Cc: Gustavo Zacarias Signed-off-by: Thomas Petazzoni

fix header package name

2013-07-27T13:21:03+00:00

Signed-off-by: Jerzy Grzegorek Signed-off-by: Thomas Petazzoni

Normalize separator size to 80

2013-06-06T20:30:24+00:00

Signed-off-by: Alexandre Belloni Signed-off-by: Peter Korsgaard