Bundled libwebp updated to version 0.5.1

This commit imports libwebp 0.5.1, including AUTHORS, COPYING, ChangeLog,
NEWS, PATENTS, README and src directories. In src, only includes header
and source files.

Upstream changes since 0.5.0 have been merged in.
Also updated version in qt_attribution.json.

Conflicts:
	src/3rdparty/libwebp.pri
	src/3rdparty/libwebp/qt_attribution.json
	src/3rdparty/libwebp/src/webp/config.h

Change-Id: I7d0c15400154c3b4ee8ff37665303307c4b84f9f
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

1 files changed, 78 insertions, 11 deletions

diff --git a/src/3rdparty/libwebp/README b/src/3rdparty/libwebp/README
index 381b927..90f8f10 100644
--- a/src/3rdparty/libwebp/README
+++ b/src/3rdparty/libwebp/README
@@ -4,7 +4,7 @@
           \__\__/\____/\_____/__/ ____  ___
                 / _/ /    \    \ /  _ \/ _/
                /  \_/   / /   \ \   __/  \__
-               \____/____/\_____/_____/____/v0.5.0
+               \____/____/\_____/_____/____/v0.5.1
 
 Description:
 ============
@@ -20,7 +20,7 @@ https://chromium.googlesource.com/webm/libwebp
 
 It is released under the same license as the WebM project.
 See http://www.webmproject.org/license/software/ or the
-file "COPYING" file for details. An additional intellectual
+"COPYING" file for details. An additional intellectual
 property rights grant can be found in the file PATENTS.
 
 Building:
@@ -84,6 +84,73 @@ be installed independently using a minor modification in the corresponding
 Makefile.am configure files (see comments there). See './configure --help' for
 more options.
 
+Building for MIPS Linux:
+------------------------
+MIPS Linux toolchain stable available releases can be found at:
+https://community.imgtec.com/developers/mips/tools/codescape-mips-sdk/available-releases/
+
+# Add toolchain to PATH
+export PATH=$PATH:/path/to/toolchain/bin
+
+# 32-bit build for mips32r5 (p5600)
+HOST=mips-mti-linux-gnu
+MIPS_CFLAGS="-O3 -mips32r5 -mabi=32 -mtune=p5600 -mmsa -mfp64 \
+  -msched-weight -mload-store-pairs -fPIE"
+MIPS_LDFLAGS="-mips32r5 -mabi=32 -mmsa -mfp64 -pie"
+
+# 64-bit build for mips64r6 (i6400)
+HOST=mips-img-linux-gnu
+MIPS_CFLAGS="-O3 -mips64r6 -mabi=64 -mtune=i6400 -mmsa -mfp64 \
+  -msched-weight -mload-store-pairs -fPIE"
+MIPS_LDFLAGS="-mips64r6 -mabi=64 -mmsa -mfp64 -pie"
+
+./configure --host=${HOST} --build=`config.guess` \
+  CC="${HOST}-gcc -EL" \
+  CFLAGS="$MIPS_CFLAGS" \
+  LDFLAGS="$MIPS_LDFLAGS"
+make
+make install
+
+CMake:
+------
+The support for CMake is minimal: it only helps you compile libwebp, cwebp and
+dwebp.
+
+Prerequisites:
+A compiler (e.g., gcc with autotools) and CMake.
+On a Debian-like system the following should install everything you need for a
+minimal build:
+$ sudo apt-get install build-essential cmake
+
+When building from git sources, you will need to run cmake to generate the
+configure script.
+
+mkdir build && cd build && cmake ../
+make
+make install
+
+If you also want cwebp or dwebp, you will need to enable them through CMake:
+
+cmake -DWEBP_BUILD_CWEBP=ON -DWEBP_BUILD_DWEBP=ON ../
+
+or through your favorite interface (like ccmake or cmake-qt-gui).
+
+Gradle:
+-------
+The support for Gradle is minimal: it only helps you compile libwebp, cwebp and
+dwebp and webpmux_example.
+
+Prerequisites:
+A compiler (e.g., gcc with autotools) and gradle.
+On a Debian-like system the following should install everything you need for a
+minimal build:
+$ sudo apt-get install build-essential gradle
+
+When building from git sources, you will need to run the Gradle wrapper with the
+appropriate target, e.g. :
+
+./gradlew buildAllExecutables
+
 SWIG bindings:
 --------------
 
@@ -151,8 +218,8 @@ If input size (-s) for an image is not specified, it is
 assumed to be a PNG, JPEG, TIFF or WebP file.
 
 Options:
-  -h / -help  ............ short help
-  -H / -longhelp  ........ long help
+  -h / -help ............. short help
+  -H / -longhelp ......... long help
   -q <float> ............. quality factor (0:small..100:big)
   -alpha_q <int> ......... transparency-compression quality (0..100)
   -preset <string> ....... preset setting, one of:
@@ -274,7 +341,7 @@ Use following options to convert into alternate image formats:
   -yuv ......... save the raw YUV samples in flat layout
 
  Other options are:
-  -version  .... print version number and exit
+  -version ..... print version number and exit
   -nofancy ..... don't use the fancy YUV420 upscaler
   -nofilter .... disable in-loop filtering
   -nodither .... disable dithering
@@ -286,8 +353,8 @@ Use following options to convert into alternate image formats:
   -flip ........ flip the output vertically
   -alpha ....... only save the alpha plane
   -incremental . use incremental decoding (useful for tests)
-  -h     ....... this help message
-  -v     ....... verbose (e.g. print encoding/decoding times)
+  -h ........... this help message
+  -v ........... verbose (e.g. print encoding/decoding times)
   -quiet ....... quiet mode, don't print anything
   -noasm ....... disable all assembly optimizations
 
@@ -303,7 +370,7 @@ Usage: vwebp in_file [options]
 
 Decodes the WebP image file and visualize it using OpenGL
 Options are:
-  -version  .... print version number and exit
+  -version ..... print version number and exit
   -noicc ....... don't use the icc profile if present
   -nofancy ..... don't use the fancy YUV420 upscaler
   -nofilter .... disable in-loop filtering
@@ -311,7 +378,7 @@ Options are:
   -noalphadither disable alpha plane dithering
   -mt .......... use multi-threading
   -info ........ print info
-  -h     ....... this help message
+  -h ........... this help message
 
 Keyboard shortcuts:
   'c' ................ toggle use of color profile
@@ -353,7 +420,7 @@ vwebp.
 Usage:
  gif2webp [options] gif_file -o webp_file
 Options:
-  -h / -help  ............ this help
+  -h / -help ............. this help
   -lossy ................. encode image using lossy compression
   -mixed ................. for each frame in the image, pick lossy
                            or lossless compression heuristically
@@ -637,7 +704,7 @@ an otherwise too-large picture. Some CPU can be saved too, incidentally.
 Bugs:
 =====
 
-Please report all bugs to our issue tracker:
+Please report all bugs to the issue tracker:
     https://bugs.chromium.org/p/webp
 Patches welcome! See this page to get started:
     http://www.webmproject.org/code/contribute/submitting-patches/