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upgrade WebP support from 0.2.1 to 0.4.0
upgrade WebP support from 0.2.1 to 0.4.0
- File test.webp added
I have another benchmark test with this example project:
https://code.google.com/p/webp/downloads/detail?name=webpiosapp-0.4.0.tar.gz&can=2&q=
-Simulator iOS (on MacBook Pro 2,4Ghz Intel Core 2 Duo) : ~ 260 milliseconds
-Simulator iOS (on MacBook Pro 2,4Ghz Intel Core 2 Duo) with lib file libwebp.a(*) inside Cocos2D-X 3.0rc0: ~ 400 milliseconds
GOOD! 
(*) in ./cocos2d/external/webp/prebuilt/ios/ folder
i've tested webp 0.4.0 on a 1366x720 image on ios and android. and the result looked very promising.
webp decode performance on iphone 5:
Webp(lossy) : 0.079884s
Webp(loseless) : 0.115118s
Png : 0.197729s
webp decode performance on xiaomi 2s:
Webp (lossy): 0.100315s
Webp(leseless) : 0.090699s
Png : 0.165843s
and the image size reduction is also remarkable:
PNG: 535 KB
WEBP(lossless): 172KB
WEBP(lossy): 48KB
going forward, now that webp support animated webp, it might be plausible to make webp the default image format for cocos2d-x.
Changelog for 0.4.1 version of libwebp:
- 7/24/14: version 0.4.1
This is a binary compatible release.
- AArch64 (arm64) & MIPS support/optimizations
- NEON assembly additions:
- ~25% faster lossy decode / encode (-m 4)
- ~10% faster lossless decode
- ~5-10% faster lossless encode (-m 3/4)
- dwebp/vwebp can read from stdin
- cwebp/gif2webp can write to stdout
- cwebp can read webp files; useful if storing sources as webp lossless
Redmine issue system is closed, we are using github issue system instead.
This issue was moved to https://github.com/cocos2d/cocos2d-x/issues/8375
| Status: | Closed | |
|---|---|---|
| Start date: | 2014-03-21 | |
| Priority: | Low | |
| Due date: | ||
| Assignee: | - | |
| % Done: | 0% |
|
| Category: | all | |
| Target version: | - |
the current webp support is outdated. The decoder is very slow (on Nexus 4, 1.2 seconds for 3674x717 webp image; on LG Optimus One P500, 5.7 seconds).
test.webp - file 3674x717 (140.4 kB) alexodus, 2014-03-24 12:21